/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2007 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2009 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fs.h>
+#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_compat.h"
#include "lpfc_debugfs.h"
-
-/*
- * Define macro to log: Mailbox command x%x cannot issue Data
- * This allows multiple uses of lpfc_msgBlk0311
- * w/o perturbing log msg utility.
- */
-#define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \
- lpfc_printf_log(phba, \
- KERN_INFO, \
- LOG_MBOX | LOG_SLI, \
- "(%d):0311 Mailbox command x%x cannot " \
- "issue Data: x%x x%x x%x\n", \
- pmbox->vport ? pmbox->vport->vpi : 0, \
- pmbox->mb.mbxCommand, \
- phba->pport->port_state, \
- psli->sli_flag, \
- flag)
-
+#include "lpfc_vport.h"
/* There are only four IOCB completion types. */
typedef enum _lpfc_iocb_type {
LPFC_ABORT_IOCB
} lpfc_iocb_type;
- /* SLI-2/SLI-3 provide different sized iocbs. Given a pointer
- * to the start of the ring, and the slot number of the
- * desired iocb entry, calc a pointer to that entry.
- */
+
+/* Provide function prototypes local to this module. */
+static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
+ uint32_t);
+static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
+ uint8_t *, uint32_t *);
+
+static IOCB_t *
+lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
+{
+ return &iocbq->iocb;
+}
+
+/**
+ * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
+ * @q: The Work Queue to operate on.
+ * @wqe: The work Queue Entry to put on the Work queue.
+ *
+ * This routine will copy the contents of @wqe to the next available entry on
+ * the @q. This function will then ring the Work Queue Doorbell to signal the
+ * HBA to start processing the Work Queue Entry. This function returns 0 if
+ * successful. If no entries are available on @q then this function will return
+ * -ENOMEM.
+ * The caller is expected to hold the hbalock when calling this routine.
+ **/
+static uint32_t
+lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
+{
+ union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
+ struct lpfc_register doorbell;
+ uint32_t host_index;
+
+ /* If the host has not yet processed the next entry then we are done */
+ if (((q->host_index + 1) % q->entry_count) == q->hba_index)
+ return -ENOMEM;
+ /* set consumption flag every once in a while */
+ if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
+ bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
+
+ lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
+
+ /* Update the host index before invoking device */
+ host_index = q->host_index;
+ q->host_index = ((q->host_index + 1) % q->entry_count);
+
+ /* Ring Doorbell */
+ doorbell.word0 = 0;
+ bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
+ bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
+ bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
+ writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
+ readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
+
+ return 0;
+}
+
+/**
+ * lpfc_sli4_wq_release - Updates internal hba index for WQ
+ * @q: The Work Queue to operate on.
+ * @index: The index to advance the hba index to.
+ *
+ * This routine will update the HBA index of a queue to reflect consumption of
+ * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
+ * an entry the host calls this function to update the queue's internal
+ * pointers. This routine returns the number of entries that were consumed by
+ * the HBA.
+ **/
+static uint32_t
+lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
+{
+ uint32_t released = 0;
+
+ if (q->hba_index == index)
+ return 0;
+ do {
+ q->hba_index = ((q->hba_index + 1) % q->entry_count);
+ released++;
+ } while (q->hba_index != index);
+ return released;
+}
+
+/**
+ * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
+ * @q: The Mailbox Queue to operate on.
+ * @wqe: The Mailbox Queue Entry to put on the Work queue.
+ *
+ * This routine will copy the contents of @mqe to the next available entry on
+ * the @q. This function will then ring the Work Queue Doorbell to signal the
+ * HBA to start processing the Work Queue Entry. This function returns 0 if
+ * successful. If no entries are available on @q then this function will return
+ * -ENOMEM.
+ * The caller is expected to hold the hbalock when calling this routine.
+ **/
+static uint32_t
+lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
+{
+ struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
+ struct lpfc_register doorbell;
+ uint32_t host_index;
+
+ /* If the host has not yet processed the next entry then we are done */
+ if (((q->host_index + 1) % q->entry_count) == q->hba_index)
+ return -ENOMEM;
+ lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
+ /* Save off the mailbox pointer for completion */
+ q->phba->mbox = (MAILBOX_t *)temp_mqe;
+
+ /* Update the host index before invoking device */
+ host_index = q->host_index;
+ q->host_index = ((q->host_index + 1) % q->entry_count);
+
+ /* Ring Doorbell */
+ doorbell.word0 = 0;
+ bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
+ bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
+ writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
+ readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
+ return 0;
+}
+
+/**
+ * lpfc_sli4_mq_release - Updates internal hba index for MQ
+ * @q: The Mailbox Queue to operate on.
+ *
+ * This routine will update the HBA index of a queue to reflect consumption of
+ * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
+ * an entry the host calls this function to update the queue's internal
+ * pointers. This routine returns the number of entries that were consumed by
+ * the HBA.
+ **/
+static uint32_t
+lpfc_sli4_mq_release(struct lpfc_queue *q)
+{
+ /* Clear the mailbox pointer for completion */
+ q->phba->mbox = NULL;
+ q->hba_index = ((q->hba_index + 1) % q->entry_count);
+ return 1;
+}
+
+/**
+ * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
+ * @q: The Event Queue to get the first valid EQE from
+ *
+ * This routine will get the first valid Event Queue Entry from @q, update
+ * the queue's internal hba index, and return the EQE. If no valid EQEs are in
+ * the Queue (no more work to do), or the Queue is full of EQEs that have been
+ * processed, but not popped back to the HBA then this routine will return NULL.
+ **/
+static struct lpfc_eqe *
+lpfc_sli4_eq_get(struct lpfc_queue *q)
+{
+ struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
+
+ /* If the next EQE is not valid then we are done */
+ if (!bf_get(lpfc_eqe_valid, eqe))
+ return NULL;
+ /* If the host has not yet processed the next entry then we are done */
+ if (((q->hba_index + 1) % q->entry_count) == q->host_index)
+ return NULL;
+
+ q->hba_index = ((q->hba_index + 1) % q->entry_count);
+ return eqe;
+}
+
+/**
+ * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
+ * @q: The Event Queue that the host has completed processing for.
+ * @arm: Indicates whether the host wants to arms this CQ.
+ *
+ * This routine will mark all Event Queue Entries on @q, from the last
+ * known completed entry to the last entry that was processed, as completed
+ * by clearing the valid bit for each completion queue entry. Then it will
+ * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
+ * The internal host index in the @q will be updated by this routine to indicate
+ * that the host has finished processing the entries. The @arm parameter
+ * indicates that the queue should be rearmed when ringing the doorbell.
+ *
+ * This function will return the number of EQEs that were popped.
+ **/
+uint32_t
+lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
+{
+ uint32_t released = 0;
+ struct lpfc_eqe *temp_eqe;
+ struct lpfc_register doorbell;
+
+ /* while there are valid entries */
+ while (q->hba_index != q->host_index) {
+ temp_eqe = q->qe[q->host_index].eqe;
+ bf_set(lpfc_eqe_valid, temp_eqe, 0);
+ released++;
+ q->host_index = ((q->host_index + 1) % q->entry_count);
+ }
+ if (unlikely(released == 0 && !arm))
+ return 0;
+
+ /* ring doorbell for number popped */
+ doorbell.word0 = 0;
+ if (arm) {
+ bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
+ bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
+ }
+ bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
+ bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
+ bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
+ writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
+ return released;
+}
+
+/**
+ * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
+ * @q: The Completion Queue to get the first valid CQE from
+ *
+ * This routine will get the first valid Completion Queue Entry from @q, update
+ * the queue's internal hba index, and return the CQE. If no valid CQEs are in
+ * the Queue (no more work to do), or the Queue is full of CQEs that have been
+ * processed, but not popped back to the HBA then this routine will return NULL.
+ **/
+static struct lpfc_cqe *
+lpfc_sli4_cq_get(struct lpfc_queue *q)
+{
+ struct lpfc_cqe *cqe;
+
+ /* If the next CQE is not valid then we are done */
+ if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
+ return NULL;
+ /* If the host has not yet processed the next entry then we are done */
+ if (((q->hba_index + 1) % q->entry_count) == q->host_index)
+ return NULL;
+
+ cqe = q->qe[q->hba_index].cqe;
+ q->hba_index = ((q->hba_index + 1) % q->entry_count);
+ return cqe;
+}
+
+/**
+ * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
+ * @q: The Completion Queue that the host has completed processing for.
+ * @arm: Indicates whether the host wants to arms this CQ.
+ *
+ * This routine will mark all Completion queue entries on @q, from the last
+ * known completed entry to the last entry that was processed, as completed
+ * by clearing the valid bit for each completion queue entry. Then it will
+ * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
+ * The internal host index in the @q will be updated by this routine to indicate
+ * that the host has finished processing the entries. The @arm parameter
+ * indicates that the queue should be rearmed when ringing the doorbell.
+ *
+ * This function will return the number of CQEs that were released.
+ **/
+uint32_t
+lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
+{
+ uint32_t released = 0;
+ struct lpfc_cqe *temp_qe;
+ struct lpfc_register doorbell;
+
+ /* while there are valid entries */
+ while (q->hba_index != q->host_index) {
+ temp_qe = q->qe[q->host_index].cqe;
+ bf_set(lpfc_cqe_valid, temp_qe, 0);
+ released++;
+ q->host_index = ((q->host_index + 1) % q->entry_count);
+ }
+ if (unlikely(released == 0 && !arm))
+ return 0;
+
+ /* ring doorbell for number popped */
+ doorbell.word0 = 0;
+ if (arm)
+ bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
+ bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
+ bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
+ bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
+ writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
+ return released;
+}
+
+/**
+ * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
+ * @q: The Header Receive Queue to operate on.
+ * @wqe: The Receive Queue Entry to put on the Receive queue.
+ *
+ * This routine will copy the contents of @wqe to the next available entry on
+ * the @q. This function will then ring the Receive Queue Doorbell to signal the
+ * HBA to start processing the Receive Queue Entry. This function returns the
+ * index that the rqe was copied to if successful. If no entries are available
+ * on @q then this function will return -ENOMEM.
+ * The caller is expected to hold the hbalock when calling this routine.
+ **/
+static int
+lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
+ struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
+{
+ struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
+ struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
+ struct lpfc_register doorbell;
+ int put_index = hq->host_index;
+
+ if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
+ return -EINVAL;
+ if (hq->host_index != dq->host_index)
+ return -EINVAL;
+ /* If the host has not yet processed the next entry then we are done */
+ if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
+ return -EBUSY;
+ lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
+ lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
+
+ /* Update the host index to point to the next slot */
+ hq->host_index = ((hq->host_index + 1) % hq->entry_count);
+ dq->host_index = ((dq->host_index + 1) % dq->entry_count);
+
+ /* Ring The Header Receive Queue Doorbell */
+ if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
+ doorbell.word0 = 0;
+ bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
+ LPFC_RQ_POST_BATCH);
+ bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
+ writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
+ }
+ return put_index;
+}
+
+/**
+ * lpfc_sli4_rq_release - Updates internal hba index for RQ
+ * @q: The Header Receive Queue to operate on.
+ *
+ * This routine will update the HBA index of a queue to reflect consumption of
+ * one Receive Queue Entry by the HBA. When the HBA indicates that it has
+ * consumed an entry the host calls this function to update the queue's
+ * internal pointers. This routine returns the number of entries that were
+ * consumed by the HBA.
+ **/
+static uint32_t
+lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
+{
+ if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
+ return 0;
+ hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
+ dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
+ return 1;
+}
+
+/**
+ * lpfc_cmd_iocb - Get next command iocb entry in the ring
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function returns pointer to next command iocb entry
+ * in the command ring. The caller must hold hbalock to prevent
+ * other threads consume the next command iocb.
+ * SLI-2/SLI-3 provide different sized iocbs.
+ **/
static inline IOCB_t *
lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
pring->cmdidx * phba->iocb_cmd_size);
}
+/**
+ * lpfc_resp_iocb - Get next response iocb entry in the ring
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function returns pointer to next response iocb entry
+ * in the response ring. The caller must hold hbalock to make sure
+ * that no other thread consume the next response iocb.
+ * SLI-2/SLI-3 provide different sized iocbs.
+ **/
static inline IOCB_t *
lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
pring->rspidx * phba->iocb_rsp_size);
}
+/**
+ * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called with hbalock held. This function
+ * allocates a new driver iocb object from the iocb pool. If the
+ * allocation is successful, it returns pointer to the newly
+ * allocated iocb object else it returns NULL.
+ **/
static struct lpfc_iocbq *
__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
{
return iocbq;
}
+/**
+ * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
+ * @phba: Pointer to HBA context object.
+ * @xritag: XRI value.
+ *
+ * This function clears the sglq pointer from the array of acive
+ * sglq's. The xritag that is passed in is used to index into the
+ * array. Before the xritag can be used it needs to be adjusted
+ * by subtracting the xribase.
+ *
+ * Returns sglq ponter = success, NULL = Failure.
+ **/
+static struct lpfc_sglq *
+__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
+{
+ uint16_t adj_xri;
+ struct lpfc_sglq *sglq;
+ adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
+ if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
+ return NULL;
+ sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
+ phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
+ return sglq;
+}
+
+/**
+ * __lpfc_get_active_sglq - Get the active sglq for this XRI.
+ * @phba: Pointer to HBA context object.
+ * @xritag: XRI value.
+ *
+ * This function returns the sglq pointer from the array of acive
+ * sglq's. The xritag that is passed in is used to index into the
+ * array. Before the xritag can be used it needs to be adjusted
+ * by subtracting the xribase.
+ *
+ * Returns sglq ponter = success, NULL = Failure.
+ **/
+static struct lpfc_sglq *
+__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
+{
+ uint16_t adj_xri;
+ struct lpfc_sglq *sglq;
+ adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
+ if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
+ return NULL;
+ sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
+ return sglq;
+}
+
+/**
+ * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called with hbalock held. This function
+ * Gets a new driver sglq object from the sglq list. If the
+ * list is not empty then it is successful, it returns pointer to the newly
+ * allocated sglq object else it returns NULL.
+ **/
+static struct lpfc_sglq *
+__lpfc_sli_get_sglq(struct lpfc_hba *phba)
+{
+ struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
+ struct lpfc_sglq *sglq = NULL;
+ uint16_t adj_xri;
+ list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
+ adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
+ phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
+ return sglq;
+}
+
+/**
+ * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called with no lock held. This function
+ * allocates a new driver iocb object from the iocb pool. If the
+ * allocation is successful, it returns pointer to the newly
+ * allocated iocb object else it returns NULL.
+ **/
struct lpfc_iocbq *
lpfc_sli_get_iocbq(struct lpfc_hba *phba)
{
return iocbq;
}
-void
-__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
+/**
+ * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
+ * @phba: Pointer to HBA context object.
+ * @iocbq: Pointer to driver iocb object.
+ *
+ * This function is called with hbalock held to release driver
+ * iocb object to the iocb pool. The iotag in the iocb object
+ * does not change for each use of the iocb object. This function
+ * clears all other fields of the iocb object when it is freed.
+ * The sqlq structure that holds the xritag and phys and virtual
+ * mappings for the scatter gather list is retrieved from the
+ * active array of sglq. The get of the sglq pointer also clears
+ * the entry in the array. If the status of the IO indiactes that
+ * this IO was aborted then the sglq entry it put on the
+ * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
+ * IO has good status or fails for any other reason then the sglq
+ * entry is added to the free list (lpfc_sgl_list).
+ **/
+static void
+__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
+{
+ struct lpfc_sglq *sglq;
+ size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
+ unsigned long iflag;
+
+ if (iocbq->sli4_xritag == NO_XRI)
+ sglq = NULL;
+ else
+ sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
+ if (sglq) {
+ if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED
+ || ((iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
+ && (iocbq->iocb.un.ulpWord[4]
+ == IOERR_SLI_ABORTED))) {
+ spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
+ iflag);
+ list_add(&sglq->list,
+ &phba->sli4_hba.lpfc_abts_els_sgl_list);
+ spin_unlock_irqrestore(
+ &phba->sli4_hba.abts_sgl_list_lock, iflag);
+ } else
+ list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
+ }
+
+
+ /*
+ * Clean all volatile data fields, preserve iotag and node struct.
+ */
+ memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
+ iocbq->sli4_xritag = NO_XRI;
+ list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
+}
+
+/**
+ * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
+ * @phba: Pointer to HBA context object.
+ * @iocbq: Pointer to driver iocb object.
+ *
+ * This function is called with hbalock held to release driver
+ * iocb object to the iocb pool. The iotag in the iocb object
+ * does not change for each use of the iocb object. This function
+ * clears all other fields of the iocb object when it is freed.
+ **/
+static void
+__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
* Clean all volatile data fields, preserve iotag and node struct.
*/
memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
+ iocbq->sli4_xritag = NO_XRI;
list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
}
+/**
+ * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
+ * @phba: Pointer to HBA context object.
+ * @iocbq: Pointer to driver iocb object.
+ *
+ * This function is called with hbalock held to release driver
+ * iocb object to the iocb pool. The iotag in the iocb object
+ * does not change for each use of the iocb object. This function
+ * clears all other fields of the iocb object when it is freed.
+ **/
+static void
+__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
+{
+ phba->__lpfc_sli_release_iocbq(phba, iocbq);
+}
+
+/**
+ * lpfc_sli_release_iocbq - Release iocb to the iocb pool
+ * @phba: Pointer to HBA context object.
+ * @iocbq: Pointer to driver iocb object.
+ *
+ * This function is called with no lock held to release the iocb to
+ * iocb pool.
+ **/
void
lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
-/*
- * Translate the iocb command to an iocb command type used to decide the final
- * disposition of each completed IOCB.
- */
+/**
+ * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
+ * @phba: Pointer to HBA context object.
+ * @iocblist: List of IOCBs.
+ * @ulpstatus: ULP status in IOCB command field.
+ * @ulpWord4: ULP word-4 in IOCB command field.
+ *
+ * This function is called with a list of IOCBs to cancel. It cancels the IOCB
+ * on the list by invoking the complete callback function associated with the
+ * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
+ * fields.
+ **/
+void
+lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
+ uint32_t ulpstatus, uint32_t ulpWord4)
+{
+ struct lpfc_iocbq *piocb;
+
+ while (!list_empty(iocblist)) {
+ list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
+
+ if (!piocb->iocb_cmpl)
+ lpfc_sli_release_iocbq(phba, piocb);
+ else {
+ piocb->iocb.ulpStatus = ulpstatus;
+ piocb->iocb.un.ulpWord[4] = ulpWord4;
+ (piocb->iocb_cmpl) (phba, piocb, piocb);
+ }
+ }
+ return;
+}
+
+/**
+ * lpfc_sli_iocb_cmd_type - Get the iocb type
+ * @iocb_cmnd: iocb command code.
+ *
+ * This function is called by ring event handler function to get the iocb type.
+ * This function translates the iocb command to an iocb command type used to
+ * decide the final disposition of each completed IOCB.
+ * The function returns
+ * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
+ * LPFC_SOL_IOCB if it is a solicited iocb completion
+ * LPFC_ABORT_IOCB if it is an abort iocb
+ * LPFC_UNSOL_IOCB if it is an unsolicited iocb
+ *
+ * The caller is not required to hold any lock.
+ **/
static lpfc_iocb_type
lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
{
case CMD_GEN_REQUEST64_CR:
case CMD_GEN_REQUEST64_CX:
case CMD_XMIT_ELS_RSP64_CX:
+ case DSSCMD_IWRITE64_CR:
+ case DSSCMD_IWRITE64_CX:
+ case DSSCMD_IREAD64_CR:
+ case DSSCMD_IREAD64_CX:
+ case DSSCMD_INVALIDATE_DEK:
+ case DSSCMD_SET_KEK:
+ case DSSCMD_GET_KEK_ID:
+ case DSSCMD_GEN_XFER:
type = LPFC_SOL_IOCB;
break;
case CMD_ABORT_XRI_CN:
case CMD_IOCB_RCV_SEQ64_CX:
case CMD_IOCB_RCV_ELS64_CX:
case CMD_IOCB_RCV_CONT64_CX:
+ case CMD_IOCB_RET_XRI64_CX:
type = LPFC_UNSOL_IOCB;
break;
+ case CMD_IOCB_XMIT_MSEQ64_CR:
+ case CMD_IOCB_XMIT_MSEQ64_CX:
+ case CMD_IOCB_RCV_SEQ_LIST64_CX:
+ case CMD_IOCB_RCV_ELS_LIST64_CX:
+ case CMD_IOCB_CLOSE_EXTENDED_CN:
+ case CMD_IOCB_ABORT_EXTENDED_CN:
+ case CMD_IOCB_RET_HBQE64_CN:
+ case CMD_IOCB_FCP_IBIDIR64_CR:
+ case CMD_IOCB_FCP_IBIDIR64_CX:
+ case CMD_IOCB_FCP_ITASKMGT64_CX:
+ case CMD_IOCB_LOGENTRY_CN:
+ case CMD_IOCB_LOGENTRY_ASYNC_CN:
+ printk("%s - Unhandled SLI-3 Command x%x\n",
+ __func__, iocb_cmnd);
+ type = LPFC_UNKNOWN_IOCB;
+ break;
default:
type = LPFC_UNKNOWN_IOCB;
break;
return type;
}
+/**
+ * lpfc_sli_ring_map - Issue config_ring mbox for all rings
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called from SLI initialization code
+ * to configure every ring of the HBA's SLI interface. The
+ * caller is not required to hold any lock. This function issues
+ * a config_ring mailbox command for each ring.
+ * This function returns zero if successful else returns a negative
+ * error code.
+ **/
static int
lpfc_sli_ring_map(struct lpfc_hba *phba)
{
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb)
return -ENOMEM;
- pmbox = &pmb->mb;
+ pmbox = &pmb->u.mb;
phba->link_state = LPFC_INIT_MBX_CMDS;
for (i = 0; i < psli->num_rings; i++) {
lpfc_config_ring(phba, i, pmb);
return ret;
}
+/**
+ * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @piocb: Pointer to the driver iocb object.
+ *
+ * This function is called with hbalock held. The function adds the
+ * new iocb to txcmplq of the given ring. This function always returns
+ * 0. If this function is called for ELS ring, this function checks if
+ * there is a vport associated with the ELS command. This function also
+ * starts els_tmofunc timer if this is an ELS command.
+ **/
static int
lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocb)
return 0;
}
+/**
+ * lpfc_sli_ringtx_get - Get first element of the txq
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function is called with hbalock held to get next
+ * iocb in txq of the given ring. If there is any iocb in
+ * the txq, the function returns first iocb in the list after
+ * removing the iocb from the list, else it returns NULL.
+ **/
static struct lpfc_iocbq *
lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
return cmd_iocb;
}
+/**
+ * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function is called with hbalock held and the caller must post the
+ * iocb without releasing the lock. If the caller releases the lock,
+ * iocb slot returned by the function is not guaranteed to be available.
+ * The function returns pointer to the next available iocb slot if there
+ * is available slot in the ring, else it returns NULL.
+ * If the get index of the ring is ahead of the put index, the function
+ * will post an error attention event to the worker thread to take the
+ * HBA to offline state.
+ **/
static IOCB_t *
lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
- struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
- &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
- &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
uint32_t max_cmd_idx = pring->numCiocb;
-
if ((pring->next_cmdidx == pring->cmdidx) &&
(++pring->next_cmdidx >= max_cmd_idx))
pring->next_cmdidx = 0;
if (unlikely(pring->local_getidx >= max_cmd_idx)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0315 Ring %d issue: portCmdGet %d "
- "is bigger then cmd ring %d\n",
+ "is bigger than cmd ring %d\n",
pring->ringno,
pring->local_getidx, max_cmd_idx);
phba->work_ha |= HA_ERATT;
phba->work_hs = HS_FFER3;
- /* hbalock should already be held */
- if (phba->work_wait)
- lpfc_worker_wake_up(phba);
+ lpfc_worker_wake_up(phba);
return NULL;
}
return lpfc_cmd_iocb(phba, pring);
}
+/**
+ * lpfc_sli_next_iotag - Get an iotag for the iocb
+ * @phba: Pointer to HBA context object.
+ * @iocbq: Pointer to driver iocb object.
+ *
+ * This function gets an iotag for the iocb. If there is no unused iotag and
+ * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
+ * array and assigns a new iotag.
+ * The function returns the allocated iotag if successful, else returns zero.
+ * Zero is not a valid iotag.
+ * The caller is not required to hold any lock.
+ **/
uint16_t
lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
return 0;
}
+/**
+ * lpfc_sli_submit_iocb - Submit an iocb to the firmware
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @iocb: Pointer to iocb slot in the ring.
+ * @nextiocb: Pointer to driver iocb object which need to be
+ * posted to firmware.
+ *
+ * This function is called with hbalock held to post a new iocb to
+ * the firmware. This function copies the new iocb to ring iocb slot and
+ * updates the ring pointers. It adds the new iocb to txcmplq if there is
+ * a completion call back for this iocb else the function will free the
+ * iocb object.
+ **/
static void
lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
*/
nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
+
if (pring->ringno == LPFC_ELS_RING) {
lpfc_debugfs_slow_ring_trc(phba,
"IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
}
+/**
+ * lpfc_sli_update_full_ring - Update the chip attention register
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * The caller is not required to hold any lock for calling this function.
+ * This function updates the chip attention bits for the ring to inform firmware
+ * that there are pending work to be done for this ring and requests an
+ * interrupt when there is space available in the ring. This function is
+ * called when the driver is unable to post more iocbs to the ring due
+ * to unavailability of space in the ring.
+ **/
static void
lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
pring->stats.iocb_cmd_full++;
}
+/**
+ * lpfc_sli_update_ring - Update chip attention register
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function updates the chip attention register bit for the
+ * given ring to inform HBA that there is more work to be done
+ * in this ring. The caller is not required to hold any lock.
+ **/
static void
lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
/*
* Tell the HBA that there is work to do in this ring.
*/
- wmb();
- writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
- readl(phba->CAregaddr); /* flush */
+ if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
+ wmb();
+ writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+ }
}
+/**
+ * lpfc_sli_resume_iocb - Process iocbs in the txq
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function is called with hbalock held to post pending iocbs
+ * in the txq to the firmware. This function is called when driver
+ * detects space available in the ring.
+ **/
static void
lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
return;
}
-struct lpfc_hbq_entry *
+/**
+ * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
+ * @phba: Pointer to HBA context object.
+ * @hbqno: HBQ number.
+ *
+ * This function is called with hbalock held to get the next
+ * available slot for the given HBQ. If there is free slot
+ * available for the HBQ it will return pointer to the next available
+ * HBQ entry else it will return NULL.
+ **/
+static struct lpfc_hbq_entry *
lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
{
struct hbq_s *hbqp = &phba->hbqs[hbqno];
hbqp->hbqPutIdx;
}
+/**
+ * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called with no lock held to free all the
+ * hbq buffers while uninitializing the SLI interface. It also
+ * frees the HBQ buffers returned by the firmware but not yet
+ * processed by the upper layers.
+ **/
void
lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
{
struct lpfc_dmabuf *dmabuf, *next_dmabuf;
struct hbq_dmabuf *hbq_buf;
+ unsigned long flags;
int i, hbq_count;
+ uint32_t hbqno;
hbq_count = lpfc_sli_hbq_count();
/* Return all memory used by all HBQs */
+ spin_lock_irqsave(&phba->hbalock, flags);
for (i = 0; i < hbq_count; ++i) {
list_for_each_entry_safe(dmabuf, next_dmabuf,
&phba->hbqs[i].hbq_buffer_list, list) {
}
phba->hbqs[i].buffer_count = 0;
}
+ /* Return all HBQ buffer that are in-fly */
+ list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
+ list) {
+ hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
+ list_del(&hbq_buf->dbuf.list);
+ if (hbq_buf->tag == -1) {
+ (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
+ (phba, hbq_buf);
+ } else {
+ hbqno = hbq_buf->tag >> 16;
+ if (hbqno >= LPFC_MAX_HBQS)
+ (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
+ (phba, hbq_buf);
+ else
+ (phba->hbqs[hbqno].hbq_free_buffer)(phba,
+ hbq_buf);
+ }
+ }
+
+ /* Mark the HBQs not in use */
+ phba->hbq_in_use = 0;
+ spin_unlock_irqrestore(&phba->hbalock, flags);
}
-static struct lpfc_hbq_entry *
+/**
+ * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
+ * @phba: Pointer to HBA context object.
+ * @hbqno: HBQ number.
+ * @hbq_buf: Pointer to HBQ buffer.
+ *
+ * This function is called with the hbalock held to post a
+ * hbq buffer to the firmware. If the function finds an empty
+ * slot in the HBQ, it will post the buffer. The function will return
+ * pointer to the hbq entry if it successfully post the buffer
+ * else it will return NULL.
+ **/
+static int
lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
struct hbq_dmabuf *hbq_buf)
{
+ return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
+}
+
+/**
+ * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
+ * @phba: Pointer to HBA context object.
+ * @hbqno: HBQ number.
+ * @hbq_buf: Pointer to HBQ buffer.
+ *
+ * This function is called with the hbalock held to post a hbq buffer to the
+ * firmware. If the function finds an empty slot in the HBQ, it will post the
+ * buffer and place it on the hbq_buffer_list. The function will return zero if
+ * it successfully post the buffer else it will return an error.
+ **/
+static int
+lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
+ struct hbq_dmabuf *hbq_buf)
+{
struct lpfc_hbq_entry *hbqe;
dma_addr_t physaddr = hbq_buf->dbuf.phys;
/* flush */
readl(phba->hbq_put + hbqno);
list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
- }
- return hbqe;
+ return 0;
+ } else
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
+ * @phba: Pointer to HBA context object.
+ * @hbqno: HBQ number.
+ * @hbq_buf: Pointer to HBQ buffer.
+ *
+ * This function is called with the hbalock held to post an RQE to the SLI4
+ * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
+ * the hbq_buffer_list and return zero, otherwise it will return an error.
+ **/
+static int
+lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
+ struct hbq_dmabuf *hbq_buf)
+{
+ int rc;
+ struct lpfc_rqe hrqe;
+ struct lpfc_rqe drqe;
+
+ hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
+ hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
+ drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
+ drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
+ rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
+ &hrqe, &drqe);
+ if (rc < 0)
+ return rc;
+ hbq_buf->tag = rc;
+ list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
+ return 0;
}
+/* HBQ for ELS and CT traffic. */
static struct lpfc_hbq_init lpfc_els_hbq = {
.rn = 1,
.entry_count = 200,
.profile = 0,
.ring_mask = (1 << LPFC_ELS_RING),
.buffer_count = 0,
- .init_count = 20,
- .add_count = 5,
+ .init_count = 40,
+ .add_count = 40,
};
+/* HBQ for the extra ring if needed */
static struct lpfc_hbq_init lpfc_extra_hbq = {
.rn = 1,
.entry_count = 200,
.add_count = 5,
};
+/* Array of HBQs */
struct lpfc_hbq_init *lpfc_hbq_defs[] = {
&lpfc_els_hbq,
&lpfc_extra_hbq,
};
+/**
+ * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
+ * @phba: Pointer to HBA context object.
+ * @hbqno: HBQ number.
+ * @count: Number of HBQ buffers to be posted.
+ *
+ * This function is called with no lock held to post more hbq buffers to the
+ * given HBQ. The function returns the number of HBQ buffers successfully
+ * posted.
+ **/
static int
lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
{
- uint32_t i, start, end;
+ uint32_t i, posted = 0;
+ unsigned long flags;
struct hbq_dmabuf *hbq_buffer;
-
- if (!phba->hbqs[hbqno].hbq_alloc_buffer) {
+ LIST_HEAD(hbq_buf_list);
+ if (!phba->hbqs[hbqno].hbq_alloc_buffer)
return 0;
- }
-
- start = phba->hbqs[hbqno].buffer_count;
- end = count + start;
- if (end > lpfc_hbq_defs[hbqno]->entry_count) {
- end = lpfc_hbq_defs[hbqno]->entry_count;
- }
- /* Populate HBQ entries */
- for (i = start; i < end; i++) {
+ if ((phba->hbqs[hbqno].buffer_count + count) >
+ lpfc_hbq_defs[hbqno]->entry_count)
+ count = lpfc_hbq_defs[hbqno]->entry_count -
+ phba->hbqs[hbqno].buffer_count;
+ if (!count)
+ return 0;
+ /* Allocate HBQ entries */
+ for (i = 0; i < count; i++) {
hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
if (!hbq_buffer)
- return 1;
- hbq_buffer->tag = (i | (hbqno << 16));
- if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
+ break;
+ list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
+ }
+ /* Check whether HBQ is still in use */
+ spin_lock_irqsave(&phba->hbalock, flags);
+ if (!phba->hbq_in_use)
+ goto err;
+ while (!list_empty(&hbq_buf_list)) {
+ list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
+ dbuf.list);
+ hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
+ (hbqno << 16));
+ if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
phba->hbqs[hbqno].buffer_count++;
- else
+ posted++;
+ } else
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
}
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ return posted;
+err:
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ while (!list_empty(&hbq_buf_list)) {
+ list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
+ dbuf.list);
+ (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
+ }
return 0;
}
+/**
+ * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
+ * @phba: Pointer to HBA context object.
+ * @qno: HBQ number.
+ *
+ * This function posts more buffers to the HBQ. This function
+ * is called with no lock held. The function returns the number of HBQ entries
+ * successfully allocated.
+ **/
int
lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
{
lpfc_hbq_defs[qno]->add_count));
}
-int
+/**
+ * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
+ * @phba: Pointer to HBA context object.
+ * @qno: HBQ queue number.
+ *
+ * This function is called from SLI initialization code path with
+ * no lock held to post initial HBQ buffers to firmware. The
+ * function returns the number of HBQ entries successfully allocated.
+ **/
+static int
lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
{
return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
lpfc_hbq_defs[qno]->init_count));
}
-struct hbq_dmabuf *
+/**
+ * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
+ * @phba: Pointer to HBA context object.
+ * @hbqno: HBQ number.
+ *
+ * This function removes the first hbq buffer on an hbq list and returns a
+ * pointer to that buffer. If it finds no buffers on the list it returns NULL.
+ **/
+static struct hbq_dmabuf *
+lpfc_sli_hbqbuf_get(struct list_head *rb_list)
+{
+ struct lpfc_dmabuf *d_buf;
+
+ list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
+ if (!d_buf)
+ return NULL;
+ return container_of(d_buf, struct hbq_dmabuf, dbuf);
+}
+
+/**
+ * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
+ * @phba: Pointer to HBA context object.
+ * @tag: Tag of the hbq buffer.
+ *
+ * This function is called with hbalock held. This function searches
+ * for the hbq buffer associated with the given tag in the hbq buffer
+ * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
+ * it returns NULL.
+ **/
+static struct hbq_dmabuf *
lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
{
struct lpfc_dmabuf *d_buf;
if (hbqno >= LPFC_MAX_HBQS)
return NULL;
+ spin_lock_irq(&phba->hbalock);
list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
if (hbq_buf->tag == tag) {
+ spin_unlock_irq(&phba->hbalock);
return hbq_buf;
}
}
+ spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
"1803 Bad hbq tag. Data: x%x x%x\n",
tag, phba->hbqs[tag >> 16].buffer_count);
return NULL;
}
+/**
+ * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
+ * @phba: Pointer to HBA context object.
+ * @hbq_buffer: Pointer to HBQ buffer.
+ *
+ * This function is called with hbalock. This function gives back
+ * the hbq buffer to firmware. If the HBQ does not have space to
+ * post the buffer, it will free the buffer.
+ **/
void
lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
{
if (hbq_buffer) {
hbqno = hbq_buffer->tag >> 16;
- if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
+ if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
- }
}
}
+/**
+ * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
+ * @mbxCommand: mailbox command code.
+ *
+ * This function is called by the mailbox event handler function to verify
+ * that the completed mailbox command is a legitimate mailbox command. If the
+ * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
+ * and the mailbox event handler will take the HBA offline.
+ **/
static int
lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
{
case MBX_DEL_LD_ENTRY:
case MBX_RUN_PROGRAM:
case MBX_SET_MASK:
- case MBX_SET_SLIM:
+ case MBX_SET_VARIABLE:
case MBX_UNREG_D_ID:
case MBX_KILL_BOARD:
case MBX_CONFIG_FARP:
case MBX_READ_RPI64:
case MBX_REG_LOGIN64:
case MBX_READ_LA64:
- case MBX_FLASH_WR_ULA:
+ case MBX_WRITE_WWN:
case MBX_SET_DEBUG:
case MBX_LOAD_EXP_ROM:
case MBX_ASYNCEVT_ENABLE:
case MBX_REG_VPI:
case MBX_UNREG_VPI:
case MBX_HEARTBEAT:
+ case MBX_PORT_CAPABILITIES:
+ case MBX_PORT_IOV_CONTROL:
+ case MBX_SLI4_CONFIG:
+ case MBX_SLI4_REQ_FTRS:
+ case MBX_REG_FCFI:
+ case MBX_UNREG_FCFI:
+ case MBX_REG_VFI:
+ case MBX_UNREG_VFI:
+ case MBX_INIT_VPI:
+ case MBX_INIT_VFI:
+ case MBX_RESUME_RPI:
ret = mbxCommand;
break;
default:
}
return ret;
}
-static void
+
+/**
+ * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
+ * @phba: Pointer to HBA context object.
+ * @pmboxq: Pointer to mailbox command.
+ *
+ * This is completion handler function for mailbox commands issued from
+ * lpfc_sli_issue_mbox_wait function. This function is called by the
+ * mailbox event handler function with no lock held. This function
+ * will wake up thread waiting on the wait queue pointed by context1
+ * of the mailbox.
+ **/
+void
lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
wait_queue_head_t *pdone_q;
return;
}
+
+/**
+ * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
+ * @phba: Pointer to HBA context object.
+ * @pmb: Pointer to mailbox object.
+ *
+ * This function is the default mailbox completion handler. It
+ * frees the memory resources associated with the completed mailbox
+ * command. If the completed command is a REG_LOGIN mailbox command,
+ * this function will issue a UREG_LOGIN to re-claim the RPI.
+ **/
void
lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_dmabuf *mp;
- uint16_t rpi;
+ uint16_t rpi, vpi;
int rc;
mp = (struct lpfc_dmabuf *) (pmb->context1);
kfree(mp);
}
+ if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
+ (phba->sli_rev == LPFC_SLI_REV4))
+ lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
+
/*
* If a REG_LOGIN succeeded after node is destroyed or node
* is in re-discovery driver need to cleanup the RPI.
*/
if (!(phba->pport->load_flag & FC_UNLOADING) &&
- pmb->mb.mbxCommand == MBX_REG_LOGIN64 &&
- !pmb->mb.mbxStatus) {
-
- rpi = pmb->mb.un.varWords[0];
- lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb);
+ pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
+ !pmb->u.mb.mbxStatus) {
+ rpi = pmb->u.mb.un.varWords[0];
+ vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
+ lpfc_unreg_login(phba, vpi, rpi, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_NOT_FINISHED)
return;
}
- mempool_free(pmb, phba->mbox_mem_pool);
- return;
+ if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
+ lpfc_sli4_mbox_cmd_free(phba, pmb);
+ else
+ mempool_free(pmb, phba->mbox_mem_pool);
}
+/**
+ * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called with no lock held. This function processes all
+ * the completed mailbox commands and gives it to upper layers. The interrupt
+ * service routine processes mailbox completion interrupt and adds completed
+ * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
+ * Worker thread call lpfc_sli_handle_mb_event, which will return the
+ * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
+ * function returns the mailbox commands to the upper layer by calling the
+ * completion handler function of each mailbox.
+ **/
int
lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
{
if (pmb == NULL)
break;
- pmbox = &pmb->mb;
+ pmbox = &pmb->u.mb;
if (pmbox->mbxCommand != MBX_HEARTBEAT) {
if (pmb->vport) {
*/
if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
MBX_SHUTDOWN) {
- /* Unknow mailbox command compl */
+ /* Unknown mailbox command compl */
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
"(%d):0323 Unknown Mailbox command "
- "%x Cmpl\n",
+ "x%x (x%x) Cmpl\n",
pmb->vport ? pmb->vport->vpi : 0,
- pmbox->mbxCommand);
+ pmbox->mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, pmb));
phba->link_state = LPFC_HBA_ERROR;
phba->work_hs = HS_FFER3;
lpfc_handle_eratt(phba);
LOG_MBOX | LOG_SLI,
"(%d):0305 Mbox cmd cmpl "
"error - RETRYing Data: x%x "
- "x%x x%x x%x\n",
+ "(x%x) x%x x%x x%x\n",
pmb->vport ? pmb->vport->vpi :0,
pmbox->mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba,
+ pmb),
pmbox->mbxStatus,
pmbox->un.varWords[0],
pmb->vport->port_state);
pmbox->mbxStatus = 0;
pmbox->mbxOwner = OWN_HOST;
- spin_lock_irq(&phba->hbalock);
- phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
- spin_unlock_irq(&phba->hbalock);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
- if (rc == MBX_SUCCESS)
+ if (rc != MBX_NOT_FINISHED)
continue;
}
}
/* Mailbox cmd <cmd> Cmpl <cmpl> */
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
- "(%d):0307 Mailbox cmd x%x Cmpl x%p "
+ "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
pmb->vport ? pmb->vport->vpi : 0,
pmbox->mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, pmb),
pmb->mbox_cmpl,
*((uint32_t *) pmbox),
pmbox->un.varWords[0],
return 0;
}
+/**
+ * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @tag: buffer tag.
+ *
+ * This function is called with no lock held. When QUE_BUFTAG_BIT bit
+ * is set in the tag the buffer is posted for a particular exchange,
+ * the function will return the buffer without replacing the buffer.
+ * If the buffer is for unsolicited ELS or CT traffic, this function
+ * returns the buffer and also posts another buffer to the firmware.
+ **/
static struct lpfc_dmabuf *
-lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
+lpfc_sli_get_buff(struct lpfc_hba *phba,
+ struct lpfc_sli_ring *pring,
+ uint32_t tag)
{
- struct hbq_dmabuf *hbq_entry, *new_hbq_entry;
- uint32_t hbqno;
- void *virt; /* virtual address ptr */
- dma_addr_t phys; /* mapped address */
+ struct hbq_dmabuf *hbq_entry;
+ if (tag & QUE_BUFTAG_BIT)
+ return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
- if (hbq_entry == NULL)
+ if (!hbq_entry)
return NULL;
- list_del(&hbq_entry->dbuf.list);
-
- hbqno = tag >> 16;
- new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
- if (new_hbq_entry == NULL)
- return &hbq_entry->dbuf;
- new_hbq_entry->tag = -1;
- phys = new_hbq_entry->dbuf.phys;
- virt = new_hbq_entry->dbuf.virt;
- new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys;
- new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt;
- hbq_entry->dbuf.phys = phys;
- hbq_entry->dbuf.virt = virt;
- lpfc_sli_free_hbq(phba, hbq_entry);
- return &new_hbq_entry->dbuf;
+ return &hbq_entry->dbuf;
}
-static struct lpfc_dmabuf *
-lpfc_sli_get_buff(struct lpfc_hba *phba,
- struct lpfc_sli_ring *pring,
- uint32_t tag)
+/**
+ * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
+ * @fch_r_ctl: the r_ctl for the first frame of the sequence.
+ * @fch_type: the type for the first frame of the sequence.
+ *
+ * This function is called with no lock held. This function uses the r_ctl and
+ * type of the received sequence to find the correct callback function to call
+ * to process the sequence.
+ **/
+static int
+lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
+ uint32_t fch_type)
{
- if (tag & QUE_BUFTAG_BIT)
- return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
- else
- return lpfc_sli_replace_hbqbuff(phba, tag);
+ int i;
+
+ /* unSolicited Responses */
+ if (pring->prt[0].profile) {
+ if (pring->prt[0].lpfc_sli_rcv_unsol_event)
+ (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
+ saveq);
+ return 1;
+ }
+ /* We must search, based on rctl / type
+ for the right routine */
+ for (i = 0; i < pring->num_mask; i++) {
+ if ((pring->prt[i].rctl == fch_r_ctl) &&
+ (pring->prt[i].type == fch_type)) {
+ if (pring->prt[i].lpfc_sli_rcv_unsol_event)
+ (pring->prt[i].lpfc_sli_rcv_unsol_event)
+ (phba, pring, saveq);
+ return 1;
+ }
+ }
+ return 0;
}
+/**
+ * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @saveq: Pointer to the unsolicited iocb.
+ *
+ * This function is called with no lock held by the ring event handler
+ * when there is an unsolicited iocb posted to the response ring by the
+ * firmware. This function gets the buffer associated with the iocbs
+ * and calls the event handler for the ring. This function handles both
+ * qring buffers and hbq buffers.
+ * When the function returns 1 the caller can free the iocb object otherwise
+ * upper layer functions will free the iocb objects.
+ **/
static int
lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *saveq)
IOCB_t * irsp;
WORD5 * w5p;
uint32_t Rctl, Type;
- uint32_t match, i;
+ uint32_t match;
struct lpfc_iocbq *iocbq;
+ struct lpfc_dmabuf *dmzbuf;
match = 0;
irsp = &(saveq->iocb);
return 1;
}
- if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX)
- || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)
- || (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)
- || (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX)) {
- Rctl = FC_ELS_REQ;
- Type = FC_ELS_DATA;
- } else {
- w5p =
- (WORD5 *) & (saveq->iocb.un.
- ulpWord[5]);
- Rctl = w5p->hcsw.Rctl;
- Type = w5p->hcsw.Type;
+ if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
+ (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
+ if (irsp->ulpBdeCount > 0) {
+ dmzbuf = lpfc_sli_get_buff(phba, pring,
+ irsp->un.ulpWord[3]);
+ lpfc_in_buf_free(phba, dmzbuf);
+ }
- /* Firmware Workaround */
- if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
- (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
- irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
- Rctl = FC_ELS_REQ;
- Type = FC_ELS_DATA;
- w5p->hcsw.Rctl = Rctl;
- w5p->hcsw.Type = Type;
+ if (irsp->ulpBdeCount > 1) {
+ dmzbuf = lpfc_sli_get_buff(phba, pring,
+ irsp->unsli3.sli3Words[3]);
+ lpfc_in_buf_free(phba, dmzbuf);
+ }
+
+ if (irsp->ulpBdeCount > 2) {
+ dmzbuf = lpfc_sli_get_buff(phba, pring,
+ irsp->unsli3.sli3Words[7]);
+ lpfc_in_buf_free(phba, dmzbuf);
}
+
+ return 1;
}
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
- struct lpfc_hbq_entry *hbqe_1, *hbqe_2;
- hbqe_1 = (struct lpfc_hbq_entry *) &saveq->iocb.un.ulpWord[0];
- hbqe_2 = (struct lpfc_hbq_entry *) &saveq->iocb.
- unsli3.sli3Words[4];
-
if (irsp->ulpBdeCount != 0) {
saveq->context2 = lpfc_sli_get_buff(phba, pring,
irsp->un.ulpWord[3]);
"an unsolicited iocb. tag 0x%x\n",
pring->ringno,
irsp->un.ulpWord[3]);
-
}
if (irsp->ulpBdeCount == 2) {
saveq->context3 = lpfc_sli_get_buff(phba, pring,
irsp->unsli3.sli3Words[7]);
}
list_for_each_entry(iocbq, &saveq->list, list) {
- hbqe_1 = (struct lpfc_hbq_entry *) &iocbq->iocb.
- un.ulpWord[0];
- hbqe_2 = (struct lpfc_hbq_entry *) &iocbq->iocb.
- unsli3.sli3Words[4];
irsp = &(iocbq->iocb);
-
if (irsp->ulpBdeCount != 0) {
iocbq->context2 = lpfc_sli_get_buff(phba, pring,
irsp->un.ulpWord[3]);
- if (!saveq->context2)
+ if (!iocbq->context2)
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
if (irsp->ulpBdeCount == 2) {
iocbq->context3 = lpfc_sli_get_buff(phba, pring,
irsp->unsli3.sli3Words[7]);
- if (!saveq->context3)
+ if (!iocbq->context3)
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
}
}
}
-
- /* unSolicited Responses */
- if (pring->prt[0].profile) {
- if (pring->prt[0].lpfc_sli_rcv_unsol_event)
- (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
- saveq);
- match = 1;
- } else {
- /* We must search, based on rctl / type
- for the right routine */
- for (i = 0; i < pring->num_mask;
- i++) {
- if ((pring->prt[i].rctl ==
- Rctl)
- && (pring->prt[i].
- type == Type)) {
- if (pring->prt[i].lpfc_sli_rcv_unsol_event)
- (pring->prt[i].lpfc_sli_rcv_unsol_event)
- (phba, pring, saveq);
- match = 1;
+ if (irsp->ulpBdeCount != 0 &&
+ (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
+ irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
+ int found = 0;
+
+ /* search continue save q for same XRI */
+ list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
+ if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
+ list_add_tail(&saveq->list, &iocbq->list);
+ found = 1;
break;
}
}
+ if (!found)
+ list_add_tail(&saveq->clist,
+ &pring->iocb_continue_saveq);
+ if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
+ list_del_init(&iocbq->clist);
+ saveq = iocbq;
+ irsp = &(saveq->iocb);
+ } else
+ return 0;
+ }
+ if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
+ (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
+ (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
+ Rctl = FC_ELS_REQ;
+ Type = FC_ELS_DATA;
+ } else {
+ w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
+ Rctl = w5p->hcsw.Rctl;
+ Type = w5p->hcsw.Type;
+
+ /* Firmware Workaround */
+ if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
+ (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
+ irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
+ Rctl = FC_ELS_REQ;
+ Type = FC_ELS_DATA;
+ w5p->hcsw.Rctl = Rctl;
+ w5p->hcsw.Type = Type;
+ }
}
- if (match == 0) {
- /* Unexpected Rctl / Type received */
- /* Ring <ringno> handler: unexpected
- Rctl <Rctl> Type <Type> received */
+
+ if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0313 Ring %d handler: unexpected Rctl x%x "
"Type x%x received\n",
pring->ringno, Rctl, Type);
- }
+
return 1;
}
+/**
+ * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @prspiocb: Pointer to response iocb object.
+ *
+ * This function looks up the iocb_lookup table to get the command iocb
+ * corresponding to the given response iocb using the iotag of the
+ * response iocb. This function is called with the hbalock held.
+ * This function returns the command iocb object if it finds the command
+ * iocb else returns NULL.
+ **/
static struct lpfc_iocbq *
lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring,
return NULL;
}
+/**
+ * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @iotag: IOCB tag.
+ *
+ * This function looks up the iocb_lookup table to get the command iocb
+ * corresponding to the given iotag. This function is called with the
+ * hbalock held.
+ * This function returns the command iocb object if it finds the command
+ * iocb else returns NULL.
+ **/
+static struct lpfc_iocbq *
+lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
+ struct lpfc_sli_ring *pring, uint16_t iotag)
+{
+ struct lpfc_iocbq *cmd_iocb;
+
+ if (iotag != 0 && iotag <= phba->sli.last_iotag) {
+ cmd_iocb = phba->sli.iocbq_lookup[iotag];
+ list_del_init(&cmd_iocb->list);
+ pring->txcmplq_cnt--;
+ return cmd_iocb;
+ }
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0372 iotag x%x is out off range: max iotag (x%x)\n",
+ iotag, phba->sli.last_iotag);
+ return NULL;
+}
+
+/**
+ * lpfc_sli_process_sol_iocb - process solicited iocb completion
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @saveq: Pointer to the response iocb to be processed.
+ *
+ * This function is called by the ring event handler for non-fcp
+ * rings when there is a new response iocb in the response ring.
+ * The caller is not required to hold any locks. This function
+ * gets the command iocb associated with the response iocb and
+ * calls the completion handler for the command iocb. If there
+ * is no completion handler, the function will free the resources
+ * associated with command iocb. If the response iocb is for
+ * an already aborted command iocb, the status of the completion
+ * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
+ * This function always returns 1.
+ **/
static int
lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *saveq)
if (cmdiocbp) {
if (cmdiocbp->iocb_cmpl) {
/*
+ * If an ELS command failed send an event to mgmt
+ * application.
+ */
+ if (saveq->iocb.ulpStatus &&
+ (pring->ringno == LPFC_ELS_RING) &&
+ (cmdiocbp->iocb.ulpCommand ==
+ CMD_ELS_REQUEST64_CR))
+ lpfc_send_els_failure_event(phba,
+ cmdiocbp, saveq);
+
+ /*
* Post all ELS completions to the worker thread.
* All other are passed to the completion callback.
*/
IOSTAT_LOCAL_REJECT;
saveq->iocb.un.ulpWord[4] =
IOERR_SLI_ABORTED;
+
+ /* Firmware could still be in progress
+ * of DMAing payload, so don't free data
+ * buffer till after a hbeat.
+ */
+ saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
}
}
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
* Ring <ringno> handler: unexpected completion IoTag
* <IoTag>
*/
- lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI,
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0322 Ring %d handler: "
"unexpected completion IoTag x%x "
"Data: x%x x%x x%x x%x\n",
return rc;
}
+/**
+ * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function is called from the iocb ring event handlers when
+ * put pointer is ahead of the get pointer for a ring. This function signal
+ * an error attention condition to the worker thread and the worker
+ * thread will transition the HBA to offline state.
+ **/
static void
lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
- struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
- &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
- &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
/*
- * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+ * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
* rsp ring <portRspMax>
*/
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0312 Ring %d handler: portRspPut %d "
- "is bigger then rsp ring %d\n",
+ "is bigger than rsp ring %d\n",
pring->ringno, le32_to_cpu(pgp->rspPutInx),
pring->numRiocb);
phba->work_ha |= HA_ERATT;
phba->work_hs = HS_FFER3;
- /* hbalock should already be held */
- if (phba->work_wait)
- lpfc_worker_wake_up(phba);
+ lpfc_worker_wake_up(phba);
+
+ return;
+}
+
+/**
+ * lpfc_poll_eratt - Error attention polling timer timeout handler
+ * @ptr: Pointer to address of HBA context object.
+ *
+ * This function is invoked by the Error Attention polling timer when the
+ * timer times out. It will check the SLI Error Attention register for
+ * possible attention events. If so, it will post an Error Attention event
+ * and wake up worker thread to process it. Otherwise, it will set up the
+ * Error Attention polling timer for the next poll.
+ **/
+void lpfc_poll_eratt(unsigned long ptr)
+{
+ struct lpfc_hba *phba;
+ uint32_t eratt = 0;
+
+ phba = (struct lpfc_hba *)ptr;
+
+ /* Check chip HA register for error event */
+ eratt = lpfc_sli_check_eratt(phba);
+ if (eratt)
+ /* Tell the worker thread there is work to do */
+ lpfc_worker_wake_up(phba);
+ else
+ /* Restart the timer for next eratt poll */
+ mod_timer(&phba->eratt_poll, jiffies +
+ HZ * LPFC_ERATT_POLL_INTERVAL);
return;
}
+/**
+ * lpfc_sli_poll_fcp_ring - Handle FCP ring completion in polling mode
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called from lpfc_queuecommand, lpfc_poll_timeout,
+ * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING
+ * is enabled.
+ *
+ * The caller does not hold any lock.
+ * The function processes each response iocb in the response ring until it
+ * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
+ * LE bit set. The function will call the completion handler of the command iocb
+ * if the response iocb indicates a completion for a command iocb or it is
+ * an abort completion.
+ **/
void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
IOCB_t *entry = NULL;
struct lpfc_iocbq *cmdiocbq = NULL;
struct lpfc_iocbq rspiocbq;
- struct lpfc_pgp *pgp;
+ struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
uint32_t status;
uint32_t portRspPut, portRspMax;
int type;
pring->stats.iocb_event++;
- pgp = (phba->sli_rev == 3) ?
- &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
- &phba->slim2p->mbx.us.s2.port[pring->ringno];
-
-
/*
* The next available response entry should never exceed the maximum
* entries. If it does, treat it as an adapter hardware error.
irsp->un.ulpWord[3],
irsp->un.ulpWord[4],
irsp->un.ulpWord[5],
- *(((uint32_t *) irsp) + 6),
- *(((uint32_t *) irsp) + 7));
+ *(uint32_t *)&irsp->un1,
+ *((uint32_t *)&irsp->un1 + 1));
}
switch (type) {
return;
}
-/*
+/**
+ * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @mask: Host attention register mask for this ring.
+ *
+ * This function is called from the interrupt context when there is a ring
+ * event for the fcp ring. The caller does not hold any lock.
+ * The function processes each response iocb in the response ring until it
+ * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
+ * LE bit set. The function will call the completion handler of the command iocb
+ * if the response iocb indicates a completion for a command iocb or it is
+ * an abort completion. The function will call lpfc_sli_process_unsol_iocb
+ * function if this is an unsolicited iocb.
* This routine presumes LPFC_FCP_RING handling and doesn't bother
- * to check it explicitly.
- */
+ * to check it explicitly. This function always returns 1.
+ **/
static int
lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint32_t mask)
{
- struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
- &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
- &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
IOCB_t *irsp = NULL;
IOCB_t *entry = NULL;
struct lpfc_iocbq *cmdiocbq = NULL;
if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
(irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
- lpfc_adjust_queue_depth(phba);
+ phba->lpfc_rampdown_queue_depth(phba);
spin_lock_irqsave(&phba->hbalock, iflag);
}
irsp->un.ulpWord[3],
irsp->un.ulpWord[4],
irsp->un.ulpWord[5],
- *(((uint32_t *) irsp) + 6),
- *(((uint32_t *) irsp) + 7));
+ *(uint32_t *)&irsp->un1,
+ *((uint32_t *)&irsp->un1 + 1));
}
switch (type) {
return rc;
}
-int
+/**
+ * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @rspiocbp: Pointer to driver response IOCB object.
+ *
+ * This function is called from the worker thread when there is a slow-path
+ * response IOCB to process. This function chains all the response iocbs until
+ * seeing the iocb with the LE bit set. The function will call
+ * lpfc_sli_process_sol_iocb function if the response iocb indicates a
+ * completion of a command iocb. The function will call the
+ * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
+ * The function frees the resources or calls the completion handler if this
+ * iocb is an abort completion. The function returns NULL when the response
+ * iocb has the LE bit set and all the chained iocbs are processed, otherwise
+ * this function shall chain the iocb on to the iocb_continueq and return the
+ * response iocb passed in.
+ **/
+static struct lpfc_iocbq *
+lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq *rspiocbp)
+{
+ struct lpfc_iocbq *saveq;
+ struct lpfc_iocbq *cmdiocbp;
+ struct lpfc_iocbq *next_iocb;
+ IOCB_t *irsp = NULL;
+ uint32_t free_saveq;
+ uint8_t iocb_cmd_type;
+ lpfc_iocb_type type;
+ unsigned long iflag;
+ int rc;
+
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ /* First add the response iocb to the countinueq list */
+ list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
+ pring->iocb_continueq_cnt++;
+
+ /* Now, determine whetehr the list is completed for processing */
+ irsp = &rspiocbp->iocb;
+ if (irsp->ulpLe) {
+ /*
+ * By default, the driver expects to free all resources
+ * associated with this iocb completion.
+ */
+ free_saveq = 1;
+ saveq = list_get_first(&pring->iocb_continueq,
+ struct lpfc_iocbq, list);
+ irsp = &(saveq->iocb);
+ list_del_init(&pring->iocb_continueq);
+ pring->iocb_continueq_cnt = 0;
+
+ pring->stats.iocb_rsp++;
+
+ /*
+ * If resource errors reported from HBA, reduce
+ * queuedepths of the SCSI device.
+ */
+ if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
+ (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ phba->lpfc_rampdown_queue_depth(phba);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ }
+
+ if (irsp->ulpStatus) {
+ /* Rsp ring <ringno> error: IOCB */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0328 Rsp Ring %d error: "
+ "IOCB Data: "
+ "x%x x%x x%x x%x "
+ "x%x x%x x%x x%x "
+ "x%x x%x x%x x%x "
+ "x%x x%x x%x x%x\n",
+ pring->ringno,
+ irsp->un.ulpWord[0],
+ irsp->un.ulpWord[1],
+ irsp->un.ulpWord[2],
+ irsp->un.ulpWord[3],
+ irsp->un.ulpWord[4],
+ irsp->un.ulpWord[5],
+ *(((uint32_t *) irsp) + 6),
+ *(((uint32_t *) irsp) + 7),
+ *(((uint32_t *) irsp) + 8),
+ *(((uint32_t *) irsp) + 9),
+ *(((uint32_t *) irsp) + 10),
+ *(((uint32_t *) irsp) + 11),
+ *(((uint32_t *) irsp) + 12),
+ *(((uint32_t *) irsp) + 13),
+ *(((uint32_t *) irsp) + 14),
+ *(((uint32_t *) irsp) + 15));
+ }
+
+ /*
+ * Fetch the IOCB command type and call the correct completion
+ * routine. Solicited and Unsolicited IOCBs on the ELS ring
+ * get freed back to the lpfc_iocb_list by the discovery
+ * kernel thread.
+ */
+ iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
+ type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
+ switch (type) {
+ case LPFC_SOL_IOCB:
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ break;
+
+ case LPFC_UNSOL_IOCB:
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ if (!rc)
+ free_saveq = 0;
+ break;
+
+ case LPFC_ABORT_IOCB:
+ cmdiocbp = NULL;
+ if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
+ cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
+ saveq);
+ if (cmdiocbp) {
+ /* Call the specified completion routine */
+ if (cmdiocbp->iocb_cmpl) {
+ spin_unlock_irqrestore(&phba->hbalock,
+ iflag);
+ (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
+ saveq);
+ spin_lock_irqsave(&phba->hbalock,
+ iflag);
+ } else
+ __lpfc_sli_release_iocbq(phba,
+ cmdiocbp);
+ }
+ break;
+
+ case LPFC_UNKNOWN_IOCB:
+ if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
+ char adaptermsg[LPFC_MAX_ADPTMSG];
+ memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
+ memcpy(&adaptermsg[0], (uint8_t *)irsp,
+ MAX_MSG_DATA);
+ dev_warn(&((phba->pcidev)->dev),
+ "lpfc%d: %s\n",
+ phba->brd_no, adaptermsg);
+ } else {
+ /* Unknown IOCB command */
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0335 Unknown IOCB "
+ "command Data: x%x "
+ "x%x x%x x%x\n",
+ irsp->ulpCommand,
+ irsp->ulpStatus,
+ irsp->ulpIoTag,
+ irsp->ulpContext);
+ }
+ break;
+ }
+
+ if (free_saveq) {
+ list_for_each_entry_safe(rspiocbp, next_iocb,
+ &saveq->list, list) {
+ list_del(&rspiocbp->list);
+ __lpfc_sli_release_iocbq(phba, rspiocbp);
+ }
+ __lpfc_sli_release_iocbq(phba, saveq);
+ }
+ rspiocbp = NULL;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return rspiocbp;
+}
+
+/**
+ * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @mask: Host attention register mask for this ring.
+ *
+ * This routine wraps the actual slow_ring event process routine from the
+ * API jump table function pointer from the lpfc_hba struct.
+ **/
+void
lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint32_t mask)
{
- struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
- &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
- &phba->slim2p->mbx.us.s2.port[pring->ringno];
+ phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
+}
+
+/**
+ * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @mask: Host attention register mask for this ring.
+ *
+ * This function is called from the worker thread when there is a ring event
+ * for non-fcp rings. The caller does not hold any lock. The function will
+ * remove each response iocb in the response ring and calls the handle
+ * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
+ **/
+static void
+lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
+ struct lpfc_sli_ring *pring, uint32_t mask)
+{
+ struct lpfc_pgp *pgp;
IOCB_t *entry;
IOCB_t *irsp = NULL;
struct lpfc_iocbq *rspiocbp = NULL;
- struct lpfc_iocbq *next_iocb;
- struct lpfc_iocbq *cmdiocbp;
- struct lpfc_iocbq *saveq;
- uint8_t iocb_cmd_type;
- lpfc_iocb_type type;
- uint32_t status, free_saveq;
uint32_t portRspPut, portRspMax;
- int rc = 1;
unsigned long iflag;
+ uint32_t status;
+ pgp = &phba->port_gp[pring->ringno];
spin_lock_irqsave(&phba->hbalock, iflag);
pring->stats.iocb_event++;
portRspPut = le32_to_cpu(pgp->rspPutInx);
if (portRspPut >= portRspMax) {
/*
- * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+ * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
* rsp ring <portRspMax>
*/
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0303 Ring %d handler: portRspPut %d "
- "is bigger then rsp ring %d\n",
+ "is bigger than rsp ring %d\n",
pring->ringno, portRspPut, portRspMax);
phba->link_state = LPFC_HBA_ERROR;
phba->work_hs = HS_FFER3;
lpfc_handle_eratt(phba);
- return 1;
+ return;
}
rmb();
rspiocbp = __lpfc_sli_get_iocbq(phba);
if (rspiocbp == NULL) {
printk(KERN_ERR "%s: out of buffers! Failing "
- "completion.\n", __FUNCTION__);
+ "completion.\n", __func__);
break;
}
writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
- if (list_empty(&(pring->iocb_continueq))) {
- list_add(&rspiocbp->list, &(pring->iocb_continueq));
- } else {
- list_add_tail(&rspiocbp->list,
- &(pring->iocb_continueq));
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ /* Handle the response IOCB */
+ rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+
+ /*
+ * If the port response put pointer has not been updated, sync
+ * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
+ * response put pointer.
+ */
+ if (pring->rspidx == portRspPut) {
+ portRspPut = le32_to_cpu(pgp->rspPutInx);
}
+ } /* while (pring->rspidx != portRspPut) */
- pring->iocb_continueq_cnt++;
- if (irsp->ulpLe) {
- /*
- * By default, the driver expects to free all resources
- * associated with this iocb completion.
- */
- free_saveq = 1;
- saveq = list_get_first(&pring->iocb_continueq,
- struct lpfc_iocbq, list);
- irsp = &(saveq->iocb);
- list_del_init(&pring->iocb_continueq);
- pring->iocb_continueq_cnt = 0;
+ if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
+ /* At least one response entry has been freed */
+ pring->stats.iocb_rsp_full++;
+ /* SET RxRE_RSP in Chip Att register */
+ status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
+ writel(status, phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+ }
+ if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
+ pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
+ pring->stats.iocb_cmd_empty++;
- pring->stats.iocb_rsp++;
-
- /*
- * If resource errors reported from HBA, reduce
- * queuedepths of the SCSI device.
- */
- if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
- (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
- spin_unlock_irqrestore(&phba->hbalock, iflag);
- lpfc_adjust_queue_depth(phba);
- spin_lock_irqsave(&phba->hbalock, iflag);
- }
-
- if (irsp->ulpStatus) {
- /* Rsp ring <ringno> error: IOCB */
- lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
- "0328 Rsp Ring %d error: "
- "IOCB Data: "
- "x%x x%x x%x x%x "
- "x%x x%x x%x x%x "
- "x%x x%x x%x x%x "
- "x%x x%x x%x x%x\n",
- pring->ringno,
- irsp->un.ulpWord[0],
- irsp->un.ulpWord[1],
- irsp->un.ulpWord[2],
- irsp->un.ulpWord[3],
- irsp->un.ulpWord[4],
- irsp->un.ulpWord[5],
- *(((uint32_t *) irsp) + 6),
- *(((uint32_t *) irsp) + 7),
- *(((uint32_t *) irsp) + 8),
- *(((uint32_t *) irsp) + 9),
- *(((uint32_t *) irsp) + 10),
- *(((uint32_t *) irsp) + 11),
- *(((uint32_t *) irsp) + 12),
- *(((uint32_t *) irsp) + 13),
- *(((uint32_t *) irsp) + 14),
- *(((uint32_t *) irsp) + 15));
- }
-
- /*
- * Fetch the IOCB command type and call the correct
- * completion routine. Solicited and Unsolicited
- * IOCBs on the ELS ring get freed back to the
- * lpfc_iocb_list by the discovery kernel thread.
- */
- iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
- type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
- if (type == LPFC_SOL_IOCB) {
- spin_unlock_irqrestore(&phba->hbalock,
- iflag);
- rc = lpfc_sli_process_sol_iocb(phba, pring,
- saveq);
- spin_lock_irqsave(&phba->hbalock, iflag);
- } else if (type == LPFC_UNSOL_IOCB) {
- spin_unlock_irqrestore(&phba->hbalock,
- iflag);
- rc = lpfc_sli_process_unsol_iocb(phba, pring,
- saveq);
- spin_lock_irqsave(&phba->hbalock, iflag);
- } else if (type == LPFC_ABORT_IOCB) {
- if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
- ((cmdiocbp =
- lpfc_sli_iocbq_lookup(phba, pring,
- saveq)))) {
- /* Call the specified completion
- routine */
- if (cmdiocbp->iocb_cmpl) {
- spin_unlock_irqrestore(
- &phba->hbalock,
- iflag);
- (cmdiocbp->iocb_cmpl) (phba,
- cmdiocbp, saveq);
- spin_lock_irqsave(
- &phba->hbalock,
- iflag);
- } else
- __lpfc_sli_release_iocbq(phba,
- cmdiocbp);
- }
- } else if (type == LPFC_UNKNOWN_IOCB) {
- if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
-
- char adaptermsg[LPFC_MAX_ADPTMSG];
-
- memset(adaptermsg, 0,
- LPFC_MAX_ADPTMSG);
- memcpy(&adaptermsg[0], (uint8_t *) irsp,
- MAX_MSG_DATA);
- dev_warn(&((phba->pcidev)->dev),
- "lpfc%d: %s\n",
- phba->brd_no, adaptermsg);
- } else {
- /* Unknown IOCB command */
- lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "0335 Unknown IOCB "
- "command Data: x%x "
- "x%x x%x x%x\n",
- irsp->ulpCommand,
- irsp->ulpStatus,
- irsp->ulpIoTag,
- irsp->ulpContext);
- }
- }
-
- if (free_saveq) {
- list_for_each_entry_safe(rspiocbp, next_iocb,
- &saveq->list, list) {
- list_del(&rspiocbp->list);
- __lpfc_sli_release_iocbq(phba,
- rspiocbp);
- }
- __lpfc_sli_release_iocbq(phba, saveq);
- }
- rspiocbp = NULL;
- }
-
- /*
- * If the port response put pointer has not been updated, sync
- * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
- * response put pointer.
- */
- if (pring->rspidx == portRspPut) {
- portRspPut = le32_to_cpu(pgp->rspPutInx);
- }
- } /* while (pring->rspidx != portRspPut) */
-
- if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
- /* At least one response entry has been freed */
- pring->stats.iocb_rsp_full++;
- /* SET RxRE_RSP in Chip Att register */
- status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
- writel(status, phba->CAregaddr);
- readl(phba->CAregaddr); /* flush */
- }
- if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
- pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
- pring->stats.iocb_cmd_empty++;
-
- /* Force update of the local copy of cmdGetInx */
- pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
- lpfc_sli_resume_iocb(phba, pring);
+ /* Force update of the local copy of cmdGetInx */
+ pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+ lpfc_sli_resume_iocb(phba, pring);
if ((pring->lpfc_sli_cmd_available))
(pring->lpfc_sli_cmd_available) (phba, pring);
}
spin_unlock_irqrestore(&phba->hbalock, iflag);
- return rc;
+ return;
+}
+
+/**
+ * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @mask: Host attention register mask for this ring.
+ *
+ * This function is called from the worker thread when there is a pending
+ * ELS response iocb on the driver internal slow-path response iocb worker
+ * queue. The caller does not hold any lock. The function will remove each
+ * response iocb from the response worker queue and calls the handle
+ * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
+ **/
+static void
+lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
+ struct lpfc_sli_ring *pring, uint32_t mask)
+{
+ struct lpfc_iocbq *irspiocbq;
+ unsigned long iflag;
+
+ while (!list_empty(&phba->sli4_hba.sp_rspiocb_work_queue)) {
+ /* Get the response iocb from the head of work queue */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ list_remove_head(&phba->sli4_hba.sp_rspiocb_work_queue,
+ irspiocbq, struct lpfc_iocbq, list);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ /* Process the response iocb */
+ lpfc_sli_sp_handle_rspiocb(phba, pring, irspiocbq);
+ }
}
+/**
+ * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ *
+ * This function aborts all iocbs in the given ring and frees all the iocb
+ * objects in txq. This function issues an abort iocb for all the iocb commands
+ * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
+ * the return of this function. The caller is not required to hold any locks.
+ **/
void
lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
LIST_HEAD(completions);
struct lpfc_iocbq *iocb, *next_iocb;
- IOCB_t *cmd = NULL;
if (pring->ringno == LPFC_ELS_RING) {
lpfc_fabric_abort_hba(phba);
spin_unlock_irq(&phba->hbalock);
- while (!list_empty(&completions)) {
- iocb = list_get_first(&completions, struct lpfc_iocbq, list);
- cmd = &iocb->iocb;
- list_del_init(&iocb->list);
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+}
- if (!iocb->iocb_cmpl)
- lpfc_sli_release_iocbq(phba, iocb);
- else {
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- }
- }
+/**
+ * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
+ * @phba: Pointer to HBA context object.
+ *
+ * This function flushes all iocbs in the fcp ring and frees all the iocb
+ * objects in txq and txcmplq. This function will not issue abort iocbs
+ * for all the iocb commands in txcmplq, they will just be returned with
+ * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
+ * slot has been permanently disabled.
+ **/
+void
+lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
+{
+ LIST_HEAD(txq);
+ LIST_HEAD(txcmplq);
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ /* Currently, only one fcp ring */
+ pring = &psli->ring[psli->fcp_ring];
+
+ spin_lock_irq(&phba->hbalock);
+ /* Retrieve everything on txq */
+ list_splice_init(&pring->txq, &txq);
+ pring->txq_cnt = 0;
+
+ /* Retrieve everything on the txcmplq */
+ list_splice_init(&pring->txcmplq, &txcmplq);
+ pring->txcmplq_cnt = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Flush the txq */
+ lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_DOWN);
+
+ /* Flush the txcmpq */
+ lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_DOWN);
}
-int
-lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
+/**
+ * lpfc_sli_brdready_s3 - Check for sli3 host ready status
+ * @phba: Pointer to HBA context object.
+ * @mask: Bit mask to be checked.
+ *
+ * This function reads the host status register and compares
+ * with the provided bit mask to check if HBA completed
+ * the restart. This function will wait in a loop for the
+ * HBA to complete restart. If the HBA does not restart within
+ * 15 iterations, the function will reset the HBA again. The
+ * function returns 1 when HBA fail to restart otherwise returns
+ * zero.
+ **/
+static int
+lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
{
uint32_t status;
int i = 0;
return retval;
}
+/**
+ * lpfc_sli_brdready_s4 - Check for sli4 host ready status
+ * @phba: Pointer to HBA context object.
+ * @mask: Bit mask to be checked.
+ *
+ * This function checks the host status register to check if HBA is
+ * ready. This function will wait in a loop for the HBA to be ready
+ * If the HBA is not ready , the function will will reset the HBA PCI
+ * function again. The function returns 1 when HBA fail to be ready
+ * otherwise returns zero.
+ **/
+static int
+lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
+{
+ uint32_t status;
+ int retval = 0;
+
+ /* Read the HBA Host Status Register */
+ status = lpfc_sli4_post_status_check(phba);
+
+ if (status) {
+ phba->pport->port_state = LPFC_VPORT_UNKNOWN;
+ lpfc_sli_brdrestart(phba);
+ status = lpfc_sli4_post_status_check(phba);
+ }
+
+ /* Check to see if any errors occurred during init */
+ if (status) {
+ phba->link_state = LPFC_HBA_ERROR;
+ retval = 1;
+ } else
+ phba->sli4_hba.intr_enable = 0;
+
+ return retval;
+}
+
+/**
+ * lpfc_sli_brdready - Wrapper func for checking the hba readyness
+ * @phba: Pointer to HBA context object.
+ * @mask: Bit mask to be checked.
+ *
+ * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
+ * from the API jump table function pointer from the lpfc_hba struct.
+ **/
+int
+lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
+{
+ return phba->lpfc_sli_brdready(phba, mask);
+}
+
#define BARRIER_TEST_PATTERN (0xdeadbeef)
+/**
+ * lpfc_reset_barrier - Make HBA ready for HBA reset
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called before resetting an HBA. This
+ * function requests HBA to quiesce DMAs before a reset.
+ **/
void lpfc_reset_barrier(struct lpfc_hba *phba)
{
uint32_t __iomem *resp_buf;
mdelay(1);
if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
- if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
+ if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
phba->pport->stopped)
goto restore_hc;
else
readl(phba->HCregaddr); /* flush */
}
+/**
+ * lpfc_sli_brdkill - Issue a kill_board mailbox command
+ * @phba: Pointer to HBA context object.
+ *
+ * This function issues a kill_board mailbox command and waits for
+ * the error attention interrupt. This function is called for stopping
+ * the firmware processing. The caller is not required to hold any
+ * locks. This function calls lpfc_hba_down_post function to free
+ * any pending commands after the kill. The function will return 1 when it
+ * fails to kill the board else will return 0.
+ **/
int
lpfc_sli_brdkill(struct lpfc_hba *phba)
{
return 1;
}
- psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
mempool_free(pmb, phba->mbox_mem_pool);
}
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ psli->mbox_active = NULL;
phba->link_flag &= ~LS_IGNORE_ERATT;
spin_unlock_irq(&phba->hbalock);
- psli->mbox_active = NULL;
lpfc_hba_down_post(phba);
phba->link_state = LPFC_HBA_ERROR;
return ha_copy & HA_ERATT ? 0 : 1;
}
+/**
+ * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
+ * @phba: Pointer to HBA context object.
+ *
+ * This function resets the HBA by writing HC_INITFF to the control
+ * register. After the HBA resets, this function resets all the iocb ring
+ * indices. This function disables PCI layer parity checking during
+ * the reset.
+ * This function returns 0 always.
+ * The caller is not required to hold any locks.
+ **/
int
lpfc_sli_brdreset(struct lpfc_hba *phba)
{
(cfg_value &
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
- psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
+ psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
+
/* Now toggle INITFF bit in the Host Control Register */
writel(HC_INITFF, phba->HCregaddr);
mdelay(1);
return 0;
}
+/**
+ * lpfc_sli4_brdreset - Reset a sli-4 HBA
+ * @phba: Pointer to HBA context object.
+ *
+ * This function resets a SLI4 HBA. This function disables PCI layer parity
+ * checking during resets the device. The caller is not required to hold
+ * any locks.
+ *
+ * This function returns 0 always.
+ **/
int
-lpfc_sli_brdrestart(struct lpfc_hba *phba)
+lpfc_sli4_brdreset(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ uint16_t cfg_value;
+ uint8_t qindx;
+
+ /* Reset HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "0295 Reset HBA Data: x%x x%x\n",
+ phba->pport->port_state, psli->sli_flag);
+
+ /* perform board reset */
+ phba->fc_eventTag = 0;
+ phba->pport->fc_myDID = 0;
+ phba->pport->fc_prevDID = 0;
+
+ /* Turn off parity checking and serr during the physical reset */
+ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
+ pci_write_config_word(phba->pcidev, PCI_COMMAND,
+ (cfg_value &
+ ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~(LPFC_PROCESS_LA);
+ phba->fcf.fcf_flag = 0;
+ /* Clean up the child queue list for the CQs */
+ list_del_init(&phba->sli4_hba.mbx_wq->list);
+ list_del_init(&phba->sli4_hba.els_wq->list);
+ list_del_init(&phba->sli4_hba.hdr_rq->list);
+ list_del_init(&phba->sli4_hba.dat_rq->list);
+ list_del_init(&phba->sli4_hba.mbx_cq->list);
+ list_del_init(&phba->sli4_hba.els_cq->list);
+ list_del_init(&phba->sli4_hba.rxq_cq->list);
+ for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
+ list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
+ for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
+ list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Now physically reset the device */
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0389 Performing PCI function reset!\n");
+ /* Perform FCoE PCI function reset */
+ lpfc_pci_function_reset(phba);
+
+ return 0;
+}
+
+/**
+ * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called in the SLI initialization code path to
+ * restart the HBA. The caller is not required to hold any lock.
+ * This function writes MBX_RESTART mailbox command to the SLIM and
+ * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
+ * function to free any pending commands. The function enables
+ * POST only during the first initialization. The function returns zero.
+ * The function does not guarantee completion of MBX_RESTART mailbox
+ * command before the return of this function.
+ **/
+static int
+lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
{
MAILBOX_t *mb;
struct lpfc_sli *psli;
- uint16_t skip_post;
volatile uint32_t word0;
void __iomem *to_slim;
readl(to_slim); /* flush */
/* Only skip post after fc_ffinit is completed */
- if (phba->pport->port_state) {
- skip_post = 1;
+ if (phba->pport->port_state)
word0 = 1; /* This is really setting up word1 */
- } else {
- skip_post = 0;
+ else
word0 = 0; /* This is really setting up word1 */
- }
to_slim = phba->MBslimaddr + sizeof (uint32_t);
writel(*(uint32_t *) mb, to_slim);
readl(to_slim); /* flush */
lpfc_sli_brdreset(phba);
phba->pport->stopped = 0;
phba->link_state = LPFC_INIT_START;
-
+ phba->hba_flag = 0;
spin_unlock_irq(&phba->hbalock);
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
psli->stats_start = get_seconds();
- if (skip_post)
- mdelay(100);
- else
- mdelay(2000);
+ /* Give the INITFF and Post time to settle. */
+ mdelay(100);
+
+ lpfc_hba_down_post(phba);
+
+ return 0;
+}
+
+/**
+ * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called in the SLI initialization code path to restart
+ * a SLI4 HBA. The caller is not required to hold any lock.
+ * At the end of the function, it calls lpfc_hba_down_post function to
+ * free any pending commands.
+ **/
+static int
+lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+
+
+ /* Restart HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "0296 Restart HBA Data: x%x x%x\n",
+ phba->pport->port_state, psli->sli_flag);
+
+ lpfc_sli4_brdreset(phba);
+
+ spin_lock_irq(&phba->hbalock);
+ phba->pport->stopped = 0;
+ phba->link_state = LPFC_INIT_START;
+ phba->hba_flag = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
+ psli->stats_start = get_seconds();
lpfc_hba_down_post(phba);
return 0;
}
+/**
+ * lpfc_sli_brdrestart - Wrapper func for restarting hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
+ * API jump table function pointer from the lpfc_hba struct.
+**/
+int
+lpfc_sli_brdrestart(struct lpfc_hba *phba)
+{
+ return phba->lpfc_sli_brdrestart(phba);
+}
+
+/**
+ * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called after a HBA restart to wait for successful
+ * restart of the HBA. Successful restart of the HBA is indicated by
+ * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
+ * iteration, the function will restart the HBA again. The function returns
+ * zero if HBA successfully restarted else returns negative error code.
+ **/
static int
lpfc_sli_chipset_init(struct lpfc_hba *phba)
{
<status> */
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0436 Adapter failed to init, "
- "timeout, status reg x%x\n", status);
+ "timeout, status reg x%x, "
+ "FW Data: A8 x%x AC x%x\n", status,
+ readl(phba->MBslimaddr + 0xa8),
+ readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
return -ETIMEDOUT;
}
<status> */
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0437 Adapter failed to init, "
- "chipset, status reg x%x\n", status);
+ "chipset, status reg x%x, "
+ "FW Data: A8 x%x AC x%x\n", status,
+ readl(phba->MBslimaddr + 0xa8),
+ readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
return -EIO;
}
/* Adapter failed to init, chipset, status reg <status> */
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0438 Adapter failed to init, chipset, "
- "status reg x%x\n", status);
+ "status reg x%x, "
+ "FW Data: A8 x%x AC x%x\n", status,
+ readl(phba->MBslimaddr + 0xa8),
+ readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
return -EIO;
}
return 0;
}
+/**
+ * lpfc_sli_hbq_count - Get the number of HBQs to be configured
+ *
+ * This function calculates and returns the number of HBQs required to be
+ * configured.
+ **/
int
lpfc_sli_hbq_count(void)
{
return ARRAY_SIZE(lpfc_hbq_defs);
}
+/**
+ * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
+ *
+ * This function adds the number of hbq entries in every HBQ to get
+ * the total number of hbq entries required for the HBA and returns
+ * the total count.
+ **/
static int
lpfc_sli_hbq_entry_count(void)
{
return count;
}
+/**
+ * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
+ *
+ * This function calculates amount of memory required for all hbq entries
+ * to be configured and returns the total memory required.
+ **/
int
lpfc_sli_hbq_size(void)
{
return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
}
+/**
+ * lpfc_sli_hbq_setup - configure and initialize HBQs
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called during the SLI initialization to configure
+ * all the HBQs and post buffers to the HBQ. The caller is not
+ * required to hold any locks. This function will return zero if successful
+ * else it will return negative error code.
+ **/
static int
lpfc_sli_hbq_setup(struct lpfc_hba *phba)
{
if (!pmb)
return -ENOMEM;
- pmbox = &pmb->mb;
+ pmbox = &pmb->u.mb;
/* Initialize the struct lpfc_sli_hbq structure for each hbq */
phba->link_state = LPFC_INIT_MBX_CMDS;
+ phba->hbq_in_use = 1;
hbq_entry_index = 0;
for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
mempool_free(pmb, phba->mbox_mem_pool);
/* Initially populate or replenish the HBQs */
- for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
- if (lpfc_sli_hbqbuf_init_hbqs(phba, hbqno))
- return -ENOMEM;
- }
+ for (hbqno = 0; hbqno < hbq_count; ++hbqno)
+ lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
return 0;
}
+/**
+ * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called during the SLI initialization to configure
+ * all the HBQs and post buffers to the HBQ. The caller is not
+ * required to hold any locks. This function will return zero if successful
+ * else it will return negative error code.
+ **/
static int
-lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode)
+lpfc_sli4_rb_setup(struct lpfc_hba *phba)
+{
+ phba->hbq_in_use = 1;
+ phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
+ phba->hbq_count = 1;
+ /* Initially populate or replenish the HBQs */
+ lpfc_sli_hbqbuf_init_hbqs(phba, 0);
+ return 0;
+}
+
+/**
+ * lpfc_sli_config_port - Issue config port mailbox command
+ * @phba: Pointer to HBA context object.
+ * @sli_mode: sli mode - 2/3
+ *
+ * This function is called by the sli intialization code path
+ * to issue config_port mailbox command. This function restarts the
+ * HBA firmware and issues a config_port mailbox command to configure
+ * the SLI interface in the sli mode specified by sli_mode
+ * variable. The caller is not required to hold any locks.
+ * The function returns 0 if successful, else returns negative error
+ * code.
+ **/
+int
+lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
{
LPFC_MBOXQ_t *pmb;
uint32_t resetcount = 0, rc = 0, done = 0;
spin_unlock_irq(&phba->hbalock);
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
lpfc_sli_brdrestart(phba);
- msleep(2500);
rc = lpfc_sli_chipset_init(phba);
if (rc)
break;
if (rc == -ERESTART) {
phba->link_state = LPFC_LINK_UNKNOWN;
continue;
- } else if (rc) {
+ } else if (rc)
break;
- }
-
phba->link_state = LPFC_INIT_MBX_CMDS;
lpfc_config_port(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
+ LPFC_SLI3_HBQ_ENABLED |
+ LPFC_SLI3_CRP_ENABLED |
+ LPFC_SLI3_INB_ENABLED |
+ LPFC_SLI3_BG_ENABLED);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0442 Adapter failed to init, mbxCmd x%x "
"CONFIG_PORT, mbxStatus x%x Data: x%x\n",
- pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0);
+ pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
spin_lock_irq(&phba->hbalock);
- phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
+ phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
rc = -ENXIO;
} else {
+ /* Allow asynchronous mailbox command to go through */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
done = 1;
- phba->max_vpi = (phba->max_vpi &&
- pmb->mb.un.varCfgPort.gmv) != 0
- ? pmb->mb.un.varCfgPort.max_vpi
- : 0;
}
}
-
if (!done) {
rc = -EINVAL;
goto do_prep_failed;
}
+ if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
+ if (!pmb->u.mb.un.varCfgPort.cMA) {
+ rc = -ENXIO;
+ goto do_prep_failed;
+ }
+ if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
+ phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
+ phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
+ phba->max_vports = (phba->max_vpi > phba->max_vports) ?
+ phba->max_vpi : phba->max_vports;
- if ((pmb->mb.un.varCfgPort.sli_mode == 3) &&
- (!pmb->mb.un.varCfgPort.cMA)) {
- rc = -ENXIO;
- goto do_prep_failed;
- }
- return rc;
+ } else
+ phba->max_vpi = 0;
+ if (pmb->u.mb.un.varCfgPort.gdss)
+ phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
+ if (pmb->u.mb.un.varCfgPort.gerbm)
+ phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
+ if (pmb->u.mb.un.varCfgPort.gcrp)
+ phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
+ if (pmb->u.mb.un.varCfgPort.ginb) {
+ phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
+ phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
+ phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
+ phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
+ phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
+ phba->inb_last_counter =
+ phba->mbox->us.s3_inb_pgp.counter;
+ } else {
+ phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
+ phba->port_gp = phba->mbox->us.s3_pgp.port;
+ phba->inb_ha_copy = NULL;
+ phba->inb_counter = NULL;
+ }
+ if (phba->cfg_enable_bg) {
+ if (pmb->u.mb.un.varCfgPort.gbg)
+ phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0443 Adapter did not grant "
+ "BlockGuard\n");
+ }
+ } else {
+ phba->hbq_get = NULL;
+ phba->port_gp = phba->mbox->us.s2.port;
+ phba->inb_ha_copy = NULL;
+ phba->inb_counter = NULL;
+ phba->max_vpi = 0;
+ }
do_prep_failed:
mempool_free(pmb, phba->mbox_mem_pool);
return rc;
}
+
+/**
+ * lpfc_sli_hba_setup - SLI intialization function
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is the main SLI intialization function. This function
+ * is called by the HBA intialization code, HBA reset code and HBA
+ * error attention handler code. Caller is not required to hold any
+ * locks. This function issues config_port mailbox command to configure
+ * the SLI, setup iocb rings and HBQ rings. In the end the function
+ * calls the config_port_post function to issue init_link mailbox
+ * command and to start the discovery. The function will return zero
+ * if successful, else it will return negative error code.
+ **/
int
lpfc_sli_hba_setup(struct lpfc_hba *phba)
{
break;
}
- rc = lpfc_do_config_port(phba, mode);
+ rc = lpfc_sli_config_port(phba, mode);
+
if (rc && lpfc_sli_mode == 3)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
"1820 Unable to select SLI-3. "
"Not supported by adapter.\n");
if (rc && mode != 2)
- rc = lpfc_do_config_port(phba, 2);
+ rc = lpfc_sli_config_port(phba, 2);
if (rc)
goto lpfc_sli_hba_setup_error;
if (phba->sli_rev == 3) {
phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
- phba->sli3_options |= LPFC_SLI3_ENABLED;
- phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
-
} else {
phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
if (rc)
goto lpfc_sli_hba_setup_error;
- /* Init HBQs */
-
+ /* Init HBQs */
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
rc = lpfc_sli_hbq_setup(phba);
if (rc)
goto lpfc_sli_hba_setup_error;
}
-
+ spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_PROCESS_LA;
+ spin_unlock_irq(&phba->hbalock);
rc = lpfc_config_port_post(phba);
if (rc)
return rc;
}
-/*! lpfc_mbox_timeout
- *
- * \pre
- * \post
- * \param hba Pointer to per struct lpfc_hba structure
- * \param l1 Pointer to the driver's mailbox queue.
- * \return
- * void
- *
- * \b Description:
- *
- * This routine handles mailbox timeout events at timer interrupt context.
- */
-void
-lpfc_mbox_timeout(unsigned long ptr)
+/**
+ * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
+ * @phba: Pointer to HBA context object.
+ * @mboxq: mailbox pointer.
+ * This function issue a dump mailbox command to read config region
+ * 23 and parse the records in the region and populate driver
+ * data structure.
+ **/
+static int
+lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
+ LPFC_MBOXQ_t *mboxq)
{
- struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
- unsigned long iflag;
- uint32_t tmo_posted;
+ struct lpfc_dmabuf *mp;
+ struct lpfc_mqe *mqe;
+ uint32_t data_length;
+ int rc;
- spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
- tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
- if (!tmo_posted)
- phba->pport->work_port_events |= WORKER_MBOX_TMO;
- spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
+ /* Program the default value of vlan_id and fc_map */
+ phba->valid_vlan = 0;
+ phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
+ phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
+ phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
- if (!tmo_posted) {
- spin_lock_irqsave(&phba->hbalock, iflag);
- if (phba->work_wait)
- lpfc_worker_wake_up(phba);
- spin_unlock_irqrestore(&phba->hbalock, iflag);
- }
-}
+ mqe = &mboxq->u.mqe;
+ if (lpfc_dump_fcoe_param(phba, mboxq))
+ return -ENOMEM;
-void
-lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
-{
- LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
- MAILBOX_t *mb = &pmbox->mb;
- struct lpfc_sli *psli = &phba->sli;
+ mp = (struct lpfc_dmabuf *) mboxq->context1;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
+ "(%d):2571 Mailbox cmd x%x Status x%x "
+ "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
+ "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
+ "CQ: x%x x%x x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ bf_get(lpfc_mqe_command, mqe),
+ bf_get(lpfc_mqe_status, mqe),
+ mqe->un.mb_words[0], mqe->un.mb_words[1],
+ mqe->un.mb_words[2], mqe->un.mb_words[3],
+ mqe->un.mb_words[4], mqe->un.mb_words[5],
+ mqe->un.mb_words[6], mqe->un.mb_words[7],
+ mqe->un.mb_words[8], mqe->un.mb_words[9],
+ mqe->un.mb_words[10], mqe->un.mb_words[11],
+ mqe->un.mb_words[12], mqe->un.mb_words[13],
+ mqe->un.mb_words[14], mqe->un.mb_words[15],
+ mqe->un.mb_words[16], mqe->un.mb_words[50],
+ mboxq->mcqe.word0,
+ mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
+ mboxq->mcqe.trailer);
+
+ if (rc) {
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ return -EIO;
+ }
+ data_length = mqe->un.mb_words[5];
+ if (data_length > DMP_RGN23_SIZE) {
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ return -EIO;
+ }
+
+ lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ return 0;
+}
+
+/**
+ * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to the LPFC_MBOXQ_t structure.
+ * @vpd: pointer to the memory to hold resulting port vpd data.
+ * @vpd_size: On input, the number of bytes allocated to @vpd.
+ * On output, the number of data bytes in @vpd.
+ *
+ * This routine executes a READ_REV SLI4 mailbox command. In
+ * addition, this routine gets the port vpd data.
+ *
+ * Return codes
+ * 0 - successful
+ * ENOMEM - could not allocated memory.
+ **/
+static int
+lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
+ uint8_t *vpd, uint32_t *vpd_size)
+{
+ int rc = 0;
+ uint32_t dma_size;
+ struct lpfc_dmabuf *dmabuf;
+ struct lpfc_mqe *mqe;
+
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!dmabuf)
+ return -ENOMEM;
+
+ /*
+ * Get a DMA buffer for the vpd data resulting from the READ_REV
+ * mailbox command.
+ */
+ dma_size = *vpd_size;
+ dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
+ dma_size,
+ &dmabuf->phys,
+ GFP_KERNEL);
+ if (!dmabuf->virt) {
+ kfree(dmabuf);
+ return -ENOMEM;
+ }
+ memset(dmabuf->virt, 0, dma_size);
+
+ /*
+ * The SLI4 implementation of READ_REV conflicts at word1,
+ * bits 31:16 and SLI4 adds vpd functionality not present
+ * in SLI3. This code corrects the conflicts.
+ */
+ lpfc_read_rev(phba, mboxq);
+ mqe = &mboxq->u.mqe;
+ mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
+ mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
+ mqe->un.read_rev.word1 &= 0x0000FFFF;
+ bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
+ bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
+
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ if (rc) {
+ dma_free_coherent(&phba->pcidev->dev, dma_size,
+ dmabuf->virt, dmabuf->phys);
+ return -EIO;
+ }
+
+ /*
+ * The available vpd length cannot be bigger than the
+ * DMA buffer passed to the port. Catch the less than
+ * case and update the caller's size.
+ */
+ if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
+ *vpd_size = mqe->un.read_rev.avail_vpd_len;
+
+ lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
+ dma_free_coherent(&phba->pcidev->dev, dma_size,
+ dmabuf->virt, dmabuf->phys);
+ kfree(dmabuf);
+ return 0;
+}
+
+/**
+ * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to explicitly arm the SLI4 device's completion and
+ * event queues
+ **/
+static void
+lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
+{
+ uint8_t fcp_eqidx;
+
+ lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
+ lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
+ lpfc_sli4_cq_release(phba->sli4_hba.rxq_cq, LPFC_QUEUE_REARM);
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
+ lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
+ LPFC_QUEUE_REARM);
+ lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
+ lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
+ LPFC_QUEUE_REARM);
+}
+
+/**
+ * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is the main SLI4 device intialization PCI function. This
+ * function is called by the HBA intialization code, HBA reset code and
+ * HBA error attention handler code. Caller is not required to hold any
+ * locks.
+ **/
+int
+lpfc_sli4_hba_setup(struct lpfc_hba *phba)
+{
+ int rc;
+ LPFC_MBOXQ_t *mboxq;
+ struct lpfc_mqe *mqe;
+ uint8_t *vpd;
+ uint32_t vpd_size;
+ uint32_t ftr_rsp = 0;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_dmabuf *mp;
+
+ /* Perform a PCI function reset to start from clean */
+ rc = lpfc_pci_function_reset(phba);
+ if (unlikely(rc))
+ return -ENODEV;
+
+ /* Check the HBA Host Status Register for readyness */
+ rc = lpfc_sli4_post_status_check(phba);
+ if (unlikely(rc))
+ return -ENODEV;
+ else {
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+ }
+
+ /*
+ * Allocate a single mailbox container for initializing the
+ * port.
+ */
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq)
+ return -ENOMEM;
+
+ /*
+ * Continue initialization with default values even if driver failed
+ * to read FCoE param config regions
+ */
+ if (lpfc_sli4_read_fcoe_params(phba, mboxq))
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
+ "2570 Failed to read FCoE parameters\n");
+
+ /* Issue READ_REV to collect vpd and FW information. */
+ vpd_size = PAGE_SIZE;
+ vpd = kzalloc(vpd_size, GFP_KERNEL);
+ if (!vpd) {
+ rc = -ENOMEM;
+ goto out_free_mbox;
+ }
+
+ rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
+ if (unlikely(rc))
+ goto out_free_vpd;
+
+ mqe = &mboxq->u.mqe;
+ phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
+ if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
+ phba->hba_flag |= HBA_FCOE_SUPPORT;
+ if (phba->sli_rev != LPFC_SLI_REV4 ||
+ !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0376 READ_REV Error. SLI Level %d "
+ "FCoE enabled %d\n",
+ phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
+ rc = -EIO;
+ goto out_free_vpd;
+ }
+ /*
+ * Evaluate the read rev and vpd data. Populate the driver
+ * state with the results. If this routine fails, the failure
+ * is not fatal as the driver will use generic values.
+ */
+ rc = lpfc_parse_vpd(phba, vpd, vpd_size);
+ if (unlikely(!rc)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0377 Error %d parsing vpd. "
+ "Using defaults.\n", rc);
+ rc = 0;
+ }
+
+ /* Save information as VPD data */
+ phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
+ phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
+ phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
+ phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
+ &mqe->un.read_rev);
+ phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
+ &mqe->un.read_rev);
+ phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
+ &mqe->un.read_rev);
+ phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
+ &mqe->un.read_rev);
+ phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
+ memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
+ phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
+ memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
+ phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
+ memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
+ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
+ "(%d):0380 READ_REV Status x%x "
+ "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ bf_get(lpfc_mqe_status, mqe),
+ phba->vpd.rev.opFwName,
+ phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
+ phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
+
+ /*
+ * Discover the port's supported feature set and match it against the
+ * hosts requests.
+ */
+ lpfc_request_features(phba, mboxq);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ if (unlikely(rc)) {
+ rc = -EIO;
+ goto out_free_vpd;
+ }
+
+ /*
+ * The port must support FCP initiator mode as this is the
+ * only mode running in the host.
+ */
+ if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
+ "0378 No support for fcpi mode.\n");
+ ftr_rsp++;
+ }
+
+ /*
+ * If the port cannot support the host's requested features
+ * then turn off the global config parameters to disable the
+ * feature in the driver. This is not a fatal error.
+ */
+ if ((phba->cfg_enable_bg) &&
+ !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
+ ftr_rsp++;
+
+ if (phba->max_vpi && phba->cfg_enable_npiv &&
+ !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
+ ftr_rsp++;
+
+ if (ftr_rsp) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
+ "0379 Feature Mismatch Data: x%08x %08x "
+ "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
+ mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
+ phba->cfg_enable_npiv, phba->max_vpi);
+ if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
+ phba->cfg_enable_bg = 0;
+ if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
+ phba->cfg_enable_npiv = 0;
+ }
+
+ /* These SLI3 features are assumed in SLI4 */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Read the port's service parameters. */
+ lpfc_read_sparam(phba, mboxq, vport->vpi);
+ mboxq->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ mp = (struct lpfc_dmabuf *) mboxq->context1;
+ if (rc == MBX_SUCCESS) {
+ memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
+ rc = 0;
+ }
+
+ /*
+ * This memory was allocated by the lpfc_read_sparam routine. Release
+ * it to the mbuf pool.
+ */
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mboxq->context1 = NULL;
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0382 READ_SPARAM command failed "
+ "status %d, mbxStatus x%x\n",
+ rc, bf_get(lpfc_mqe_status, mqe));
+ phba->link_state = LPFC_HBA_ERROR;
+ rc = -EIO;
+ goto out_free_vpd;
+ }
+
+ if (phba->cfg_soft_wwnn)
+ u64_to_wwn(phba->cfg_soft_wwnn,
+ vport->fc_sparam.nodeName.u.wwn);
+ if (phba->cfg_soft_wwpn)
+ u64_to_wwn(phba->cfg_soft_wwpn,
+ vport->fc_sparam.portName.u.wwn);
+ memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
+ sizeof(struct lpfc_name));
+ memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
+ sizeof(struct lpfc_name));
+
+ /* Update the fc_host data structures with new wwn. */
+ fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
+ fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
+
+ /* Register SGL pool to the device using non-embedded mailbox command */
+ rc = lpfc_sli4_post_sgl_list(phba);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0582 Error %d during sgl post operation", rc);
+ rc = -ENODEV;
+ goto out_free_vpd;
+ }
+
+ /* Register SCSI SGL pool to the device */
+ rc = lpfc_sli4_repost_scsi_sgl_list(phba);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
+ "0383 Error %d during scsi sgl post opeation",
+ rc);
+ /* Some Scsi buffers were moved to the abort scsi list */
+ /* A pci function reset will repost them */
+ rc = -ENODEV;
+ goto out_free_vpd;
+ }
+
+ /* Post the rpi header region to the device. */
+ rc = lpfc_sli4_post_all_rpi_hdrs(phba);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0393 Error %d during rpi post operation\n",
+ rc);
+ rc = -ENODEV;
+ goto out_free_vpd;
+ }
+ if (phba->cfg_enable_fip)
+ bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 1);
+ else
+ bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 0);
+
+ /* Set up all the queues to the device */
+ rc = lpfc_sli4_queue_setup(phba);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0381 Error %d during queue setup.\n ", rc);
+ goto out_stop_timers;
+ }
+
+ /* Arm the CQs and then EQs on device */
+ lpfc_sli4_arm_cqeq_intr(phba);
+
+ /* Indicate device interrupt mode */
+ phba->sli4_hba.intr_enable = 1;
+
+ /* Allow asynchronous mailbox command to go through */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Post receive buffers to the device */
+ lpfc_sli4_rb_setup(phba);
+
+ /* Start the ELS watchdog timer */
+ mod_timer(&vport->els_tmofunc,
+ jiffies + HZ * (phba->fc_ratov * 2));
+
+ /* Start heart beat timer */
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
+ phba->hb_outstanding = 0;
+ phba->last_completion_time = jiffies;
+
+ /* Start error attention (ERATT) polling timer */
+ mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
+
+ /*
+ * The port is ready, set the host's link state to LINK_DOWN
+ * in preparation for link interrupts.
+ */
+ lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
+ mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ lpfc_set_loopback_flag(phba);
+ /* Change driver state to LPFC_LINK_DOWN right before init link */
+ spin_lock_irq(&phba->hbalock);
+ phba->link_state = LPFC_LINK_DOWN;
+ spin_unlock_irq(&phba->hbalock);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (unlikely(rc != MBX_NOT_FINISHED)) {
+ kfree(vpd);
+ return 0;
+ } else
+ rc = -EIO;
+
+ /* Unset all the queues set up in this routine when error out */
+ if (rc)
+ lpfc_sli4_queue_unset(phba);
+
+out_stop_timers:
+ if (rc)
+ lpfc_stop_hba_timers(phba);
+out_free_vpd:
+ kfree(vpd);
+out_free_mbox:
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return rc;
+}
+
+/**
+ * lpfc_mbox_timeout - Timeout call back function for mbox timer
+ * @ptr: context object - pointer to hba structure.
+ *
+ * This is the callback function for mailbox timer. The mailbox
+ * timer is armed when a new mailbox command is issued and the timer
+ * is deleted when the mailbox complete. The function is called by
+ * the kernel timer code when a mailbox does not complete within
+ * expected time. This function wakes up the worker thread to
+ * process the mailbox timeout and returns. All the processing is
+ * done by the worker thread function lpfc_mbox_timeout_handler.
+ **/
+void
+lpfc_mbox_timeout(unsigned long ptr)
+{
+ struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
+ unsigned long iflag;
+ uint32_t tmo_posted;
+
+ spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
+ tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
+ if (!tmo_posted)
+ phba->pport->work_port_events |= WORKER_MBOX_TMO;
+ spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
+
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
+ return;
+}
+
+
+/**
+ * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called from worker thread when a mailbox command times out.
+ * The caller is not required to hold any locks. This function will reset the
+ * HBA and recover all the pending commands.
+ **/
+void
+lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
+ MAILBOX_t *mb = &pmbox->u.mb;
+ struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
- if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) {
+ /* Check the pmbox pointer first. There is a race condition
+ * between the mbox timeout handler getting executed in the
+ * worklist and the mailbox actually completing. When this
+ * race condition occurs, the mbox_active will be NULL.
+ */
+ spin_lock_irq(&phba->hbalock);
+ if (pmbox == NULL) {
+ lpfc_printf_log(phba, KERN_WARNING,
+ LOG_MBOX | LOG_SLI,
+ "0353 Active Mailbox cleared - mailbox timeout "
+ "exiting\n");
+ spin_unlock_irq(&phba->hbalock);
return;
}
phba->pport->port_state,
phba->sli.sli_flag,
phba->sli.mbox_active);
+ spin_unlock_irq(&phba->hbalock);
/* Setting state unknown so lpfc_sli_abort_iocb_ring
* would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
spin_unlock_irq(&phba->pport->work_port_lock);
spin_lock_irq(&phba->hbalock);
phba->link_state = LPFC_LINK_UNKNOWN;
- phba->pport->fc_flag |= FC_ESTABLISH_LINK;
- psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
pring = &psli->ring[psli->fcp_ring];
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
"0345 Resetting board due to mailbox timeout\n");
- /*
- * lpfc_offline calls lpfc_sli_hba_down which will clean up
- * on oustanding mailbox commands.
- */
- lpfc_offline_prep(phba);
- lpfc_offline(phba);
- lpfc_sli_brdrestart(phba);
- if (lpfc_online(phba) == 0) /* Initialize the HBA */
- mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
- lpfc_unblock_mgmt_io(phba);
- return;
+
+ /* Reset the HBA device */
+ lpfc_reset_hba(phba);
}
-int
-lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
+/**
+ * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
+ * @phba: Pointer to HBA context object.
+ * @pmbox: Pointer to mailbox object.
+ * @flag: Flag indicating how the mailbox need to be processed.
+ *
+ * This function is called by discovery code and HBA management code
+ * to submit a mailbox command to firmware with SLI-3 interface spec. This
+ * function gets the hbalock to protect the data structures.
+ * The mailbox command can be submitted in polling mode, in which case
+ * this function will wait in a polling loop for the completion of the
+ * mailbox.
+ * If the mailbox is submitted in no_wait mode (not polling) the
+ * function will submit the command and returns immediately without waiting
+ * for the mailbox completion. The no_wait is supported only when HBA
+ * is in SLI2/SLI3 mode - interrupts are enabled.
+ * The SLI interface allows only one mailbox pending at a time. If the
+ * mailbox is issued in polling mode and there is already a mailbox
+ * pending, then the function will return an error. If the mailbox is issued
+ * in NO_WAIT mode and there is a mailbox pending already, the function
+ * will return MBX_BUSY after queuing the mailbox into mailbox queue.
+ * The sli layer owns the mailbox object until the completion of mailbox
+ * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
+ * return codes the caller owns the mailbox command after the return of
+ * the function.
+ **/
+static int
+lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
+ uint32_t flag)
{
MAILBOX_t *mb;
struct lpfc_sli *psli = &phba->sli;
uint32_t status, evtctr;
uint32_t ha_copy;
int i;
+ unsigned long timeout;
unsigned long drvr_flag = 0;
- volatile uint32_t word0, ldata;
+ uint32_t word0, ldata;
void __iomem *to_slim;
+ int processing_queue = 0;
+
+ spin_lock_irqsave(&phba->hbalock, drvr_flag);
+ if (!pmbox) {
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ /* processing mbox queue from intr_handler */
+ if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+ return MBX_SUCCESS;
+ }
+ processing_queue = 1;
+ pmbox = lpfc_mbox_get(phba);
+ if (!pmbox) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+ return MBX_SUCCESS;
+ }
+ }
if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
if(!pmbox->vport) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
lpfc_printf_log(phba, KERN_ERR,
LOG_MBOX | LOG_VPORT,
"1806 Mbox x%x failed. No vport\n",
- pmbox->mb.mbxCommand);
+ pmbox->u.mb.mbxCommand);
dump_stack();
- return MBXERR_ERROR;
+ goto out_not_finished;
}
}
-
/* If the PCI channel is in offline state, do not post mbox. */
- if (unlikely(pci_channel_offline(phba->pcidev)))
- return MBX_NOT_FINISHED;
+ if (unlikely(pci_channel_offline(phba->pcidev))) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+ goto out_not_finished;
+ }
- spin_lock_irqsave(&phba->hbalock, drvr_flag);
- psli = &phba->sli;
+ /* If HBA has a deferred error attention, fail the iocb. */
+ if (unlikely(phba->hba_flag & DEFER_ERATT)) {
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+ goto out_not_finished;
+ }
+ psli = &phba->sli;
- mb = &pmbox->mb;
+ mb = &pmbox->u.mb;
status = MBX_SUCCESS;
if (phba->link_state == LPFC_HBA_ERROR) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
- LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag)
- return MBX_NOT_FINISHED;
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):0311 Mailbox command x%x cannot "
+ "issue Data: x%x x%x\n",
+ pmbox->vport ? pmbox->vport->vpi : 0,
+ pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
+ goto out_not_finished;
}
if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
!(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
- LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag)
- return MBX_NOT_FINISHED;
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2528 Mailbox command x%x cannot "
+ "issue Data: x%x x%x\n",
+ pmbox->vport ? pmbox->vport->vpi : 0,
+ pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
+ goto out_not_finished;
}
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
- LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2529 Mailbox command x%x "
+ "cannot issue Data: x%x x%x\n",
+ pmbox->vport ? pmbox->vport->vpi : 0,
+ pmbox->u.mb.mbxCommand,
+ psli->sli_flag, flag);
+ goto out_not_finished;
}
- if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
+ if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
- LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2530 Mailbox command x%x "
+ "cannot issue Data: x%x x%x\n",
+ pmbox->vport ? pmbox->vport->vpi : 0,
+ pmbox->u.mb.mbxCommand,
+ psli->sli_flag, flag);
+ goto out_not_finished;
}
/* Another mailbox command is still being processed, queue this
/* If we are not polling, we MUST be in SLI2 mode */
if (flag != MBX_POLL) {
- if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
+ if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
(mb->mbxCommand != MBX_KILL_BOARD)) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
- LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
- return MBX_NOT_FINISHED;
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2531 Mailbox command x%x "
+ "cannot issue Data: x%x x%x\n",
+ pmbox->vport ? pmbox->vport->vpi : 0,
+ pmbox->u.mb.mbxCommand,
+ psli->sli_flag, flag);
+ goto out_not_finished;
}
/* timeout active mbox command */
mod_timer(&psli->mbox_tmo, (jiffies +
/* next set own bit for the adapter and copy over command word */
mb->mbxOwner = OWN_CHIP;
- if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
+ if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* First copy command data to host SLIM area */
- lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
+ lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
} else {
if (mb->mbxCommand == MBX_CONFIG_PORT) {
/* copy command data into host mbox for cmpl */
- lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
- MAILBOX_CMD_SIZE);
+ lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
}
/* First copy mbox command data to HBA SLIM, skip past first
MAILBOX_CMD_SIZE - sizeof (uint32_t));
/* Next copy over first word, with mbxOwner set */
- ldata = *((volatile uint32_t *)mb);
+ ldata = *((uint32_t *)mb);
to_slim = phba->MBslimaddr;
writel(ldata, to_slim);
readl(to_slim); /* flush */
if (mb->mbxCommand == MBX_CONFIG_PORT) {
/* switch over to host mailbox */
- psli->sli_flag |= LPFC_SLI2_ACTIVE;
+ psli->sli_flag |= LPFC_SLI_ACTIVE;
}
}
wmb();
- /* interrupt board to doit right away */
- writel(CA_MBATT, phba->CAregaddr);
- readl(phba->CAregaddr); /* flush */
switch (flag) {
case MBX_NOWAIT:
- /* Don't wait for it to finish, just return */
+ /* Set up reference to mailbox command */
psli->mbox_active = pmbox;
+ /* Interrupt board to do it */
+ writel(CA_MBATT, phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+ /* Don't wait for it to finish, just return */
break;
case MBX_POLL:
+ /* Set up null reference to mailbox command */
psli->mbox_active = NULL;
- if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
+ /* Interrupt board to do it */
+ writel(CA_MBATT, phba->CAregaddr);
+ readl(phba->CAregaddr); /* flush */
+
+ if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* First read mbox status word */
- word0 = *((volatile uint32_t *)&phba->slim2p->mbx);
+ word0 = *((uint32_t *)phba->mbox);
word0 = le32_to_cpu(word0);
} else {
/* First read mbox status word */
/* Read the HBA Host Attention Register */
ha_copy = readl(phba->HAregaddr);
-
- i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
- i *= 1000; /* Convert to ms */
-
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
+ mb->mbxCommand) *
+ 1000) + jiffies;
+ i = 0;
/* Wait for command to complete */
while (((word0 & OWN_CHIP) == OWN_CHIP) ||
(!(ha_copy & HA_MBATT) &&
(phba->link_state > LPFC_WARM_START))) {
- if (i-- <= 0) {
+ if (time_after(jiffies, timeout)) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
- return MBX_NOT_FINISHED;
+ goto out_not_finished;
}
/* Check if we took a mbox interrupt while we were
&& (evtctr != psli->slistat.mbox_event))
break;
- spin_unlock_irqrestore(&phba->hbalock,
- drvr_flag);
-
- msleep(1);
-
- spin_lock_irqsave(&phba->hbalock, drvr_flag);
+ if (i++ > 10) {
+ spin_unlock_irqrestore(&phba->hbalock,
+ drvr_flag);
+ msleep(1);
+ spin_lock_irqsave(&phba->hbalock, drvr_flag);
+ }
- if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
+ if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* First copy command data */
- word0 = *((volatile uint32_t *)
- &phba->slim2p->mbx);
+ word0 = *((uint32_t *)phba->mbox);
word0 = le32_to_cpu(word0);
if (mb->mbxCommand == MBX_CONFIG_PORT) {
MAILBOX_t *slimmb;
- volatile uint32_t slimword0;
+ uint32_t slimword0;
/* Check real SLIM for any errors */
slimword0 = readl(phba->MBslimaddr);
slimmb = (MAILBOX_t *) & slimword0;
if (((slimword0 & OWN_CHIP) != OWN_CHIP)
&& slimmb->mbxStatus) {
psli->sli_flag &=
- ~LPFC_SLI2_ACTIVE;
+ ~LPFC_SLI_ACTIVE;
word0 = slimword0;
}
}
ha_copy = readl(phba->HAregaddr);
}
- if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
+ if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* copy results back to user */
- lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb,
- MAILBOX_CMD_SIZE);
+ lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
} else {
/* First copy command data */
lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return status;
-}
-/*
- * Caller needs to hold lock.
- */
-static void
-__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
- struct lpfc_iocbq *piocb)
-{
- /* Insert the caller's iocb in the txq tail for later processing. */
- list_add_tail(&piocb->list, &pring->txq);
- pring->txq_cnt++;
+out_not_finished:
+ if (processing_queue) {
+ pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
+ lpfc_mbox_cmpl_put(phba, pmbox);
+ }
+ return MBX_NOT_FINISHED;
}
-static struct lpfc_iocbq *
-lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
- struct lpfc_iocbq **piocb)
+/**
+ * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
+ * @phba: Pointer to HBA context object.
+ *
+ * The function blocks the posting of SLI4 asynchronous mailbox commands from
+ * the driver internal pending mailbox queue. It will then try to wait out the
+ * possible outstanding mailbox command before return.
+ *
+ * Returns:
+ * 0 - the outstanding mailbox command completed; otherwise, the wait for
+ * the outstanding mailbox command timed out.
+ **/
+static int
+lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
{
- struct lpfc_iocbq * nextiocb;
+ struct lpfc_sli *psli = &phba->sli;
+ uint8_t actcmd = MBX_HEARTBEAT;
+ int rc = 0;
+ unsigned long timeout;
- nextiocb = lpfc_sli_ringtx_get(phba, pring);
- if (!nextiocb) {
- nextiocb = *piocb;
- *piocb = NULL;
+ /* Mark the asynchronous mailbox command posting as blocked */
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
+ if (phba->sli.mbox_active)
+ actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
+ spin_unlock_irq(&phba->hbalock);
+ /* Determine how long we might wait for the active mailbox
+ * command to be gracefully completed by firmware.
+ */
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
+ jiffies;
+ /* Wait for the outstnading mailbox command to complete */
+ while (phba->sli.mbox_active) {
+ /* Check active mailbox complete status every 2ms */
+ msleep(2);
+ if (time_after(jiffies, timeout)) {
+ /* Timeout, marked the outstanding cmd not complete */
+ rc = 1;
+ break;
+ }
}
- return nextiocb;
+ /* Can not cleanly block async mailbox command, fails it */
+ if (rc) {
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
+ }
+ return rc;
}
-/*
- * Lockless version of lpfc_sli_issue_iocb.
- */
-static int
-__lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
- struct lpfc_iocbq *piocb, uint32_t flag)
+/**
+ * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
+ * @phba: Pointer to HBA context object.
+ *
+ * The function unblocks and resume posting of SLI4 asynchronous mailbox
+ * commands from the driver internal pending mailbox queue. It makes sure
+ * that there is no outstanding mailbox command before resuming posting
+ * asynchronous mailbox commands. If, for any reason, there is outstanding
+ * mailbox command, it will try to wait it out before resuming asynchronous
+ * mailbox command posting.
+ **/
+static void
+lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
{
- struct lpfc_iocbq *nextiocb;
- IOCB_t *iocb;
+ struct lpfc_sli *psli = &phba->sli;
- if (piocb->iocb_cmpl && (!piocb->vport) &&
- (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
- (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
- lpfc_printf_log(phba, KERN_ERR,
- LOG_SLI | LOG_VPORT,
- "1807 IOCB x%x failed. No vport\n",
- piocb->iocb.ulpCommand);
- dump_stack();
- return IOCB_ERROR;
+ spin_lock_irq(&phba->hbalock);
+ if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
+ /* Asynchronous mailbox posting is not blocked, do nothing */
+ spin_unlock_irq(&phba->hbalock);
+ return;
}
+ /* Outstanding synchronous mailbox command is guaranteed to be done,
+ * successful or timeout, after timing-out the outstanding mailbox
+ * command shall always be removed, so just unblock posting async
+ * mailbox command and resume
+ */
+ psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
- /* If the PCI channel is in offline state, do not post iocbs. */
- if (unlikely(pci_channel_offline(phba->pcidev)))
- return IOCB_ERROR;
+ /* wake up worker thread to post asynchronlous mailbox command */
+ lpfc_worker_wake_up(phba);
+}
+
+/**
+ * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
+ * @phba: Pointer to HBA context object.
+ * @mboxq: Pointer to mailbox object.
+ *
+ * The function posts a mailbox to the port. The mailbox is expected
+ * to be comletely filled in and ready for the port to operate on it.
+ * This routine executes a synchronous completion operation on the
+ * mailbox by polling for its completion.
+ *
+ * The caller must not be holding any locks when calling this routine.
+ *
+ * Returns:
+ * MBX_SUCCESS - mailbox posted successfully
+ * Any of the MBX error values.
+ **/
+static int
+lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ int rc = MBX_SUCCESS;
+ unsigned long iflag;
+ uint32_t db_ready;
+ uint32_t mcqe_status;
+ uint32_t mbx_cmnd;
+ unsigned long timeout;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_mqe *mb = &mboxq->u.mqe;
+ struct lpfc_bmbx_create *mbox_rgn;
+ struct dma_address *dma_address;
+ struct lpfc_register bmbx_reg;
+
+ /*
+ * Only one mailbox can be active to the bootstrap mailbox region
+ * at a time and there is no queueing provided.
+ */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2532 Mailbox command x%x (x%x) "
+ "cannot issue Data: x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ psli->sli_flag, MBX_POLL);
+ return MBXERR_ERROR;
+ }
+ /* The server grabs the token and owns it until release */
+ psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = mboxq;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+
+ /*
+ * Initialize the bootstrap memory region to avoid stale data areas
+ * in the mailbox post. Then copy the caller's mailbox contents to
+ * the bmbx mailbox region.
+ */
+ mbx_cmnd = bf_get(lpfc_mqe_command, mb);
+ memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
+ lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
+ sizeof(struct lpfc_mqe));
+
+ /* Post the high mailbox dma address to the port and wait for ready. */
+ dma_address = &phba->sli4_hba.bmbx.dma_address;
+ writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
+
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
+ * 1000) + jiffies;
+ do {
+ bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
+ db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
+ if (!db_ready)
+ msleep(2);
+
+ if (time_after(jiffies, timeout)) {
+ rc = MBXERR_ERROR;
+ goto exit;
+ }
+ } while (!db_ready);
+
+ /* Post the low mailbox dma address to the port. */
+ writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
+ * 1000) + jiffies;
+ do {
+ bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
+ db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
+ if (!db_ready)
+ msleep(2);
+
+ if (time_after(jiffies, timeout)) {
+ rc = MBXERR_ERROR;
+ goto exit;
+ }
+ } while (!db_ready);
+
+ /*
+ * Read the CQ to ensure the mailbox has completed.
+ * If so, update the mailbox status so that the upper layers
+ * can complete the request normally.
+ */
+ lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
+ sizeof(struct lpfc_mqe));
+ mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
+ lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
+ sizeof(struct lpfc_mcqe));
+ mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
+
+ /* Prefix the mailbox status with range x4000 to note SLI4 status. */
+ if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
+ bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
+ rc = MBXERR_ERROR;
+ }
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
+ "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
+ "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
+ " x%x x%x CQ: x%x x%x x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ bf_get(lpfc_mqe_status, mb),
+ mb->un.mb_words[0], mb->un.mb_words[1],
+ mb->un.mb_words[2], mb->un.mb_words[3],
+ mb->un.mb_words[4], mb->un.mb_words[5],
+ mb->un.mb_words[6], mb->un.mb_words[7],
+ mb->un.mb_words[8], mb->un.mb_words[9],
+ mb->un.mb_words[10], mb->un.mb_words[11],
+ mb->un.mb_words[12], mboxq->mcqe.word0,
+ mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
+ mboxq->mcqe.trailer);
+exit:
+ /* We are holding the token, no needed for lock when release */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return rc;
+}
+
+/**
+ * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
+ * @phba: Pointer to HBA context object.
+ * @pmbox: Pointer to mailbox object.
+ * @flag: Flag indicating how the mailbox need to be processed.
+ *
+ * This function is called by discovery code and HBA management code to submit
+ * a mailbox command to firmware with SLI-4 interface spec.
+ *
+ * Return codes the caller owns the mailbox command after the return of the
+ * function.
+ **/
+static int
+lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
+ uint32_t flag)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ unsigned long iflags;
+ int rc;
+
+ rc = lpfc_mbox_dev_check(phba);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2544 Mailbox command x%x (x%x) "
+ "cannot issue Data: x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ psli->sli_flag, flag);
+ goto out_not_finished;
+ }
+
+ /* Detect polling mode and jump to a handler */
+ if (!phba->sli4_hba.intr_enable) {
+ if (flag == MBX_POLL)
+ rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
+ else
+ rc = -EIO;
+ if (rc != MBX_SUCCESS)
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2541 Mailbox command x%x "
+ "(x%x) cannot issue Data: x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ psli->sli_flag, flag);
+ return rc;
+ } else if (flag == MBX_POLL) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
+ "(%d):2542 Try to issue mailbox command "
+ "x%x (x%x) synchronously ahead of async"
+ "mailbox command queue: x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ psli->sli_flag, flag);
+ /* Try to block the asynchronous mailbox posting */
+ rc = lpfc_sli4_async_mbox_block(phba);
+ if (!rc) {
+ /* Successfully blocked, now issue sync mbox cmd */
+ rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
+ if (rc != MBX_SUCCESS)
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "(%d):2597 Mailbox command "
+ "x%x (x%x) cannot issue "
+ "Data: x%x x%x\n",
+ mboxq->vport ?
+ mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba,
+ mboxq),
+ psli->sli_flag, flag);
+ /* Unblock the async mailbox posting afterward */
+ lpfc_sli4_async_mbox_unblock(phba);
+ }
+ return rc;
+ }
+
+ /* Now, interrupt mode asynchrous mailbox command */
+ rc = lpfc_mbox_cmd_check(phba, mboxq);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2543 Mailbox command x%x (x%x) "
+ "cannot issue Data: x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ psli->sli_flag, flag);
+ goto out_not_finished;
+ }
+
+ /* Put the mailbox command to the driver internal FIFO */
+ psli->slistat.mbox_busy++;
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ lpfc_mbox_put(phba, mboxq);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
+ "(%d):0354 Mbox cmd issue - Enqueue Data: "
+ "x%x (x%x) x%x x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0xffffff,
+ bf_get(lpfc_mqe_command, &mboxq->u.mqe),
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ phba->pport->port_state,
+ psli->sli_flag, MBX_NOWAIT);
+ /* Wake up worker thread to transport mailbox command from head */
+ lpfc_worker_wake_up(phba);
+
+ return MBX_BUSY;
+
+out_not_finished:
+ return MBX_NOT_FINISHED;
+}
+
+/**
+ * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called by worker thread to send a mailbox command to
+ * SLI4 HBA firmware.
+ *
+ **/
+int
+lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ LPFC_MBOXQ_t *mboxq;
+ int rc = MBX_SUCCESS;
+ unsigned long iflags;
+ struct lpfc_mqe *mqe;
+ uint32_t mbx_cmnd;
+
+ /* Check interrupt mode before post async mailbox command */
+ if (unlikely(!phba->sli4_hba.intr_enable))
+ return MBX_NOT_FINISHED;
+
+ /* Check for mailbox command service token */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return MBX_NOT_FINISHED;
+ }
+ if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return MBX_NOT_FINISHED;
+ }
+ if (unlikely(phba->sli.mbox_active)) {
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "0384 There is pending active mailbox cmd\n");
+ return MBX_NOT_FINISHED;
+ }
+ /* Take the mailbox command service token */
+ psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+
+ /* Get the next mailbox command from head of queue */
+ mboxq = lpfc_mbox_get(phba);
+
+ /* If no more mailbox command waiting for post, we're done */
+ if (!mboxq) {
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return MBX_SUCCESS;
+ }
+ phba->sli.mbox_active = mboxq;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ /* Check device readiness for posting mailbox command */
+ rc = lpfc_mbox_dev_check(phba);
+ if (unlikely(rc))
+ /* Driver clean routine will clean up pending mailbox */
+ goto out_not_finished;
+
+ /* Prepare the mbox command to be posted */
+ mqe = &mboxq->u.mqe;
+ mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
+
+ /* Start timer for the mbox_tmo and log some mailbox post messages */
+ mod_timer(&psli->mbox_tmo, (jiffies +
+ (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
+ "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
+ "x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ phba->pport->port_state, psli->sli_flag);
+
+ if (mbx_cmnd != MBX_HEARTBEAT) {
+ if (mboxq->vport) {
+ lpfc_debugfs_disc_trc(mboxq->vport,
+ LPFC_DISC_TRC_MBOX_VPORT,
+ "MBOX Send vport: cmd:x%x mb:x%x x%x",
+ mbx_cmnd, mqe->un.mb_words[0],
+ mqe->un.mb_words[1]);
+ } else {
+ lpfc_debugfs_disc_trc(phba->pport,
+ LPFC_DISC_TRC_MBOX,
+ "MBOX Send: cmd:x%x mb:x%x x%x",
+ mbx_cmnd, mqe->un.mb_words[0],
+ mqe->un.mb_words[1]);
+ }
+ }
+ psli->slistat.mbox_cmd++;
+
+ /* Post the mailbox command to the port */
+ rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
+ "(%d):2533 Mailbox command x%x (x%x) "
+ "cannot issue Data: x%x x%x\n",
+ mboxq->vport ? mboxq->vport->vpi : 0,
+ mboxq->u.mb.mbxCommand,
+ lpfc_sli4_mbox_opcode_get(phba, mboxq),
+ psli->sli_flag, MBX_NOWAIT);
+ goto out_not_finished;
+ }
+
+ return rc;
+
+out_not_finished:
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
+ __lpfc_mbox_cmpl_put(phba, mboxq);
+ /* Release the token */
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ return MBX_NOT_FINISHED;
+}
+
+/**
+ * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
+ * @phba: Pointer to HBA context object.
+ * @pmbox: Pointer to mailbox object.
+ * @flag: Flag indicating how the mailbox need to be processed.
+ *
+ * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
+ * the API jump table function pointer from the lpfc_hba struct.
+ *
+ * Return codes the caller owns the mailbox command after the return of the
+ * function.
+ **/
+int
+lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
+{
+ return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
+}
+
+/**
+ * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
+ * @phba: The hba struct for which this call is being executed.
+ * @dev_grp: The HBA PCI-Device group number.
+ *
+ * This routine sets up the mbox interface API function jump table in @phba
+ * struct.
+ * Returns: 0 - success, -ENODEV - failure.
+ **/
+int
+lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
+{
+
+ switch (dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
+ phba->lpfc_sli_handle_slow_ring_event =
+ lpfc_sli_handle_slow_ring_event_s3;
+ phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
+ phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
+ phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
+ break;
+ case LPFC_PCI_DEV_OC:
+ phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
+ phba->lpfc_sli_handle_slow_ring_event =
+ lpfc_sli_handle_slow_ring_event_s4;
+ phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
+ phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
+ phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1420 Invalid HBA PCI-device group: 0x%x\n",
+ dev_grp);
+ return -ENODEV;
+ break;
+ }
+ return 0;
+}
+
+/**
+ * __lpfc_sli_ringtx_put - Add an iocb to the txq
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @piocb: Pointer to address of newly added command iocb.
+ *
+ * This function is called with hbalock held to add a command
+ * iocb to the txq when SLI layer cannot submit the command iocb
+ * to the ring.
+ **/
+static void
+__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq *piocb)
+{
+ /* Insert the caller's iocb in the txq tail for later processing. */
+ list_add_tail(&piocb->list, &pring->txq);
+ pring->txq_cnt++;
+}
+
+/**
+ * lpfc_sli_next_iocb - Get the next iocb in the txq
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @piocb: Pointer to address of newly added command iocb.
+ *
+ * This function is called with hbalock held before a new
+ * iocb is submitted to the firmware. This function checks
+ * txq to flush the iocbs in txq to Firmware before
+ * submitting new iocbs to the Firmware.
+ * If there are iocbs in the txq which need to be submitted
+ * to firmware, lpfc_sli_next_iocb returns the first element
+ * of the txq after dequeuing it from txq.
+ * If there is no iocb in the txq then the function will return
+ * *piocb and *piocb is set to NULL. Caller needs to check
+ * *piocb to find if there are more commands in the txq.
+ **/
+static struct lpfc_iocbq *
+lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq **piocb)
+{
+ struct lpfc_iocbq * nextiocb;
+
+ nextiocb = lpfc_sli_ringtx_get(phba, pring);
+ if (!nextiocb) {
+ nextiocb = *piocb;
+ *piocb = NULL;
+ }
+
+ return nextiocb;
+}
+
+/**
+ * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
+ * @phba: Pointer to HBA context object.
+ * @ring_number: SLI ring number to issue iocb on.
+ * @piocb: Pointer to command iocb.
+ * @flag: Flag indicating if this command can be put into txq.
+ *
+ * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
+ * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
+ * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
+ * flag is turned on, the function returns IOCB_ERROR. When the link is down,
+ * this function allows only iocbs for posting buffers. This function finds
+ * next available slot in the command ring and posts the command to the
+ * available slot and writes the port attention register to request HBA start
+ * processing new iocb. If there is no slot available in the ring and
+ * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
+ * the function returns IOCB_BUSY.
+ *
+ * This function is called with hbalock held. The function will return success
+ * after it successfully submit the iocb to firmware or after adding to the
+ * txq.
+ **/
+static int
+__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
+ struct lpfc_iocbq *piocb, uint32_t flag)
+{
+ struct lpfc_iocbq *nextiocb;
+ IOCB_t *iocb;
+ struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
+
+ if (piocb->iocb_cmpl && (!piocb->vport) &&
+ (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
+ (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_SLI | LOG_VPORT,
+ "1807 IOCB x%x failed. No vport\n",
+ piocb->iocb.ulpCommand);
+ dump_stack();
+ return IOCB_ERROR;
+ }
+
+
+ /* If the PCI channel is in offline state, do not post iocbs. */
+ if (unlikely(pci_channel_offline(phba->pcidev)))
+ return IOCB_ERROR;
+
+ /* If HBA has a deferred error attention, fail the iocb. */
+ if (unlikely(phba->hba_flag & DEFER_ERATT))
+ return IOCB_ERROR;
/*
* We should never get an IOCB if we are in a < LINK_DOWN state
* can be issued if the link is not up.
*/
switch (piocb->iocb.ulpCommand) {
+ case CMD_GEN_REQUEST64_CR:
+ case CMD_GEN_REQUEST64_CX:
+ if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
+ (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
+ FC_FCP_CMND) ||
+ (piocb->iocb.un.genreq64.w5.hcsw.Type !=
+ MENLO_TRANSPORT_TYPE))
+
+ goto iocb_busy;
+ break;
case CMD_QUE_RING_BUF_CN:
case CMD_QUE_RING_BUF64_CN:
/*
return IOCB_BUSY;
}
-
-int
-lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
- struct lpfc_iocbq *piocb, uint32_t flag)
+/**
+ * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
+ * @phba: Pointer to HBA context object.
+ * @piocb: Pointer to command iocb.
+ * @sglq: Pointer to the scatter gather queue object.
+ *
+ * This routine converts the bpl or bde that is in the IOCB
+ * to a sgl list for the sli4 hardware. The physical address
+ * of the bpl/bde is converted back to a virtual address.
+ * If the IOCB contains a BPL then the list of BDE's is
+ * converted to sli4_sge's. If the IOCB contains a single
+ * BDE then it is converted to a single sli_sge.
+ * The IOCB is still in cpu endianess so the contents of
+ * the bpl can be used without byte swapping.
+ *
+ * Returns valid XRI = Success, NO_XRI = Failure.
+**/
+static uint16_t
+lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
+ struct lpfc_sglq *sglq)
{
- unsigned long iflags;
- int rc;
+ uint16_t xritag = NO_XRI;
+ struct ulp_bde64 *bpl = NULL;
+ struct ulp_bde64 bde;
+ struct sli4_sge *sgl = NULL;
+ IOCB_t *icmd;
+ int numBdes = 0;
+ int i = 0;
- spin_lock_irqsave(&phba->hbalock, iflags);
- rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag);
- spin_unlock_irqrestore(&phba->hbalock, iflags);
+ if (!piocbq || !sglq)
+ return xritag;
+
+ sgl = (struct sli4_sge *)sglq->sgl;
+ icmd = &piocbq->iocb;
+ if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
+ numBdes = icmd->un.genreq64.bdl.bdeSize /
+ sizeof(struct ulp_bde64);
+ /* The addrHigh and addrLow fields within the IOCB
+ * have not been byteswapped yet so there is no
+ * need to swap them back.
+ */
+ bpl = (struct ulp_bde64 *)
+ ((struct lpfc_dmabuf *)piocbq->context3)->virt;
+
+ if (!bpl)
+ return xritag;
+
+ for (i = 0; i < numBdes; i++) {
+ /* Should already be byte swapped. */
+ sgl->addr_hi = bpl->addrHigh;
+ sgl->addr_lo = bpl->addrLow;
+ /* swap the size field back to the cpu so we
+ * can assign it to the sgl.
+ */
+ bde.tus.w = le32_to_cpu(bpl->tus.w);
+ bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize);
+ if ((i+1) == numBdes)
+ bf_set(lpfc_sli4_sge_last, sgl, 1);
+ else
+ bf_set(lpfc_sli4_sge_last, sgl, 0);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ sgl->word3 = cpu_to_le32(sgl->word3);
+ bpl++;
+ sgl++;
+ }
+ } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
+ /* The addrHigh and addrLow fields of the BDE have not
+ * been byteswapped yet so they need to be swapped
+ * before putting them in the sgl.
+ */
+ sgl->addr_hi =
+ cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
+ sgl->addr_lo =
+ cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
+ bf_set(lpfc_sli4_sge_len, sgl,
+ icmd->un.genreq64.bdl.bdeSize);
+ bf_set(lpfc_sli4_sge_last, sgl, 1);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ sgl->word3 = cpu_to_le32(sgl->word3);
+ }
+ return sglq->sli4_xritag;
+}
- return rc;
+/**
+ * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
+ * @phba: Pointer to HBA context object.
+ *
+ * This routine performs a round robin SCSI command to SLI4 FCP WQ index
+ * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
+ * held.
+ *
+ * Return: index into SLI4 fast-path FCP queue index.
+ **/
+static uint32_t
+lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
+{
+ ++phba->fcp_qidx;
+ if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
+ phba->fcp_qidx = 0;
+
+ return phba->fcp_qidx;
}
+/**
+ * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
+ * @phba: Pointer to HBA context object.
+ * @piocb: Pointer to command iocb.
+ * @wqe: Pointer to the work queue entry.
+ *
+ * This routine converts the iocb command to its Work Queue Entry
+ * equivalent. The wqe pointer should not have any fields set when
+ * this routine is called because it will memcpy over them.
+ * This routine does not set the CQ_ID or the WQEC bits in the
+ * wqe.
+ *
+ * Returns: 0 = Success, IOCB_ERROR = Failure.
+ **/
static int
-lpfc_extra_ring_setup( struct lpfc_hba *phba)
+lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
+ union lpfc_wqe *wqe)
{
- struct lpfc_sli *psli;
- struct lpfc_sli_ring *pring;
+ uint32_t payload_len = 0;
+ uint8_t ct = 0;
+ uint32_t fip;
+ uint32_t abort_tag;
+ uint8_t command_type = ELS_COMMAND_NON_FIP;
+ uint8_t cmnd;
+ uint16_t xritag;
+ struct ulp_bde64 *bpl = NULL;
+
+ fip = bf_get(lpfc_fip_flag, &phba->sli4_hba.sli4_flags);
+ /* The fcp commands will set command type */
+ if (iocbq->iocb_flag & LPFC_IO_FCP)
+ command_type = FCP_COMMAND;
+ else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS))
+ command_type = ELS_COMMAND_FIP;
+ else
+ command_type = ELS_COMMAND_NON_FIP;
+
+ /* Some of the fields are in the right position already */
+ memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
+ abort_tag = (uint32_t) iocbq->iotag;
+ xritag = iocbq->sli4_xritag;
+ wqe->words[7] = 0; /* The ct field has moved so reset */
+ /* words0-2 bpl convert bde */
+ if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
+ bpl = (struct ulp_bde64 *)
+ ((struct lpfc_dmabuf *)iocbq->context3)->virt;
+ if (!bpl)
+ return IOCB_ERROR;
- psli = &phba->sli;
+ /* Should already be byte swapped. */
+ wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
+ wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
+ /* swap the size field back to the cpu so we
+ * can assign it to the sgl.
+ */
+ wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
+ payload_len = wqe->generic.bde.tus.f.bdeSize;
+ } else
+ payload_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
- /* Adjust cmd/rsp ring iocb entries more evenly */
+ iocbq->iocb.ulpIoTag = iocbq->iotag;
+ cmnd = iocbq->iocb.ulpCommand;
- /* Take some away from the FCP ring */
- pring = &psli->ring[psli->fcp_ring];
- pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
- pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
- pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
- pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+ switch (iocbq->iocb.ulpCommand) {
+ case CMD_ELS_REQUEST64_CR:
+ if (!iocbq->iocb.ulpLe) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2007 Only Limited Edition cmd Format"
+ " supported 0x%x\n",
+ iocbq->iocb.ulpCommand);
+ return IOCB_ERROR;
+ }
+ wqe->els_req.payload_len = payload_len;
+ /* Els_reguest64 has a TMO */
+ bf_set(wqe_tmo, &wqe->els_req.wqe_com,
+ iocbq->iocb.ulpTimeout);
+ /* Need a VF for word 4 set the vf bit*/
+ bf_set(els_req64_vf, &wqe->els_req, 0);
+ /* And a VFID for word 12 */
+ bf_set(els_req64_vfid, &wqe->els_req, 0);
+ /*
+ * Set ct field to 3, indicates that the context_tag field
+ * contains the FCFI and remote N_Port_ID is
+ * in word 5.
+ */
- /* and give them to the extra ring */
- pring = &psli->ring[psli->extra_ring];
+ ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
+ bf_set(lpfc_wqe_gen_context, &wqe->generic,
+ iocbq->iocb.ulpContext);
- pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
- pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
- pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
- pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+ bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
+ bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
+ /* CCP CCPE PV PRI in word10 were set in the memcpy */
+ break;
+ case CMD_XMIT_SEQUENCE64_CR:
+ /* word3 iocb=io_tag32 wqe=payload_offset */
+ /* payload offset used for multilpe outstanding
+ * sequences on the same exchange
+ */
+ wqe->words[3] = 0;
+ /* word4 relative_offset memcpy */
+ /* word5 r_ctl/df_ctl memcpy */
+ bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
+ wqe->xmit_sequence.xmit_len = payload_len;
+ break;
+ case CMD_XMIT_BCAST64_CN:
+ /* word3 iocb=iotag32 wqe=payload_len */
+ wqe->words[3] = 0; /* no definition for this in wqe */
+ /* word4 iocb=rsvd wqe=rsvd */
+ /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
+ /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
+ bf_set(lpfc_wqe_gen_ct, &wqe->generic,
+ ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
+ break;
+ case CMD_FCP_IWRITE64_CR:
+ command_type = FCP_COMMAND_DATA_OUT;
+ /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
+ * confusing.
+ * word3 is payload_len: byte offset to the sgl entry for the
+ * fcp_command.
+ * word4 is total xfer len, same as the IOCB->ulpParameter.
+ * word5 is initial xfer len 0 = wait for xfer-ready
+ */
- /* Setup default profile for this ring */
- pring->iotag_max = 4096;
- pring->num_mask = 1;
- pring->prt[0].profile = 0; /* Mask 0 */
+ /* Always wait for xfer-ready before sending data */
+ wqe->fcp_iwrite.initial_xfer_len = 0;
+ /* word 4 (xfer length) should have been set on the memcpy */
+
+ /* allow write to fall through to read */
+ case CMD_FCP_IREAD64_CR:
+ /* FCP_CMD is always the 1st sgl entry */
+ wqe->fcp_iread.payload_len =
+ payload_len + sizeof(struct fcp_rsp);
+
+ /* word 4 (xfer length) should have been set on the memcpy */
+
+ bf_set(lpfc_wqe_gen_erp, &wqe->generic,
+ iocbq->iocb.ulpFCP2Rcvy);
+ bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
+ /* The XC bit and the XS bit are similar. The driver never
+ * tracked whether or not the exchange was previouslly open.
+ * XC = Exchange create, 0 is create. 1 is already open.
+ * XS = link cmd: 1 do not close the exchange after command.
+ * XS = 0 close exchange when command completes.
+ * The only time we would not set the XC bit is when the XS bit
+ * is set and we are sending our 2nd or greater command on
+ * this exchange.
+ */
+ /* Always open the exchange */
+ bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
+
+ wqe->words[10] &= 0xffff0000; /* zero out ebde count */
+ bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
+ break;
+ case CMD_FCP_ICMND64_CR:
+ /* Always open the exchange */
+ bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
+
+ wqe->words[4] = 0;
+ wqe->words[10] &= 0xffff0000; /* zero out ebde count */
+ bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
+ break;
+ case CMD_GEN_REQUEST64_CR:
+ /* word3 command length is described as byte offset to the
+ * rsp_data. Would always be 16, sizeof(struct sli4_sge)
+ * sgl[0] = cmnd
+ * sgl[1] = rsp.
+ *
+ */
+ wqe->gen_req.command_len = payload_len;
+ /* Word4 parameter copied in the memcpy */
+ /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
+ /* word6 context tag copied in memcpy */
+ if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
+ ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2015 Invalid CT %x command 0x%x\n",
+ ct, iocbq->iocb.ulpCommand);
+ return IOCB_ERROR;
+ }
+ bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
+ bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
+ iocbq->iocb.ulpTimeout);
+
+ bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
+ command_type = OTHER_COMMAND;
+ break;
+ case CMD_XMIT_ELS_RSP64_CX:
+ /* words0-2 BDE memcpy */
+ /* word3 iocb=iotag32 wqe=rsvd */
+ wqe->words[3] = 0;
+ /* word4 iocb=did wge=rsvd. */
+ wqe->words[4] = 0;
+ /* word5 iocb=rsvd wge=did */
+ bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
+ iocbq->iocb.un.elsreq64.remoteID);
+
+ bf_set(lpfc_wqe_gen_ct, &wqe->generic,
+ ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
+
+ bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
+ bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
+ if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
+ bf_set(lpfc_wqe_gen_context, &wqe->generic,
+ iocbq->vport->vpi + phba->vpi_base);
+ command_type = OTHER_COMMAND;
+ break;
+ case CMD_CLOSE_XRI_CN:
+ case CMD_ABORT_XRI_CN:
+ case CMD_ABORT_XRI_CX:
+ /* words 0-2 memcpy should be 0 rserved */
+ /* port will send abts */
+ if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
+ /*
+ * The link is down so the fw does not need to send abts
+ * on the wire.
+ */
+ bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
+ else
+ bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
+ bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
+ abort_tag = iocbq->iocb.un.acxri.abortIoTag;
+ wqe->words[5] = 0;
+ bf_set(lpfc_wqe_gen_ct, &wqe->generic,
+ ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
+ abort_tag = iocbq->iocb.un.acxri.abortIoTag;
+ wqe->generic.abort_tag = abort_tag;
+ /*
+ * The abort handler will send us CMD_ABORT_XRI_CN or
+ * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
+ */
+ bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
+ cmnd = CMD_ABORT_XRI_CX;
+ command_type = OTHER_COMMAND;
+ xritag = 0;
+ break;
+ case CMD_XRI_ABORTED_CX:
+ case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
+ /* words0-2 are all 0's no bde */
+ /* word3 and word4 are rsvrd */
+ wqe->words[3] = 0;
+ wqe->words[4] = 0;
+ /* word5 iocb=rsvd wge=did */
+ /* There is no remote port id in the IOCB? */
+ /* Let this fall through and fail */
+ case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
+ case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
+ case CMD_FCP_TRSP64_CX: /* Target mode rcv */
+ case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2014 Invalid command 0x%x\n",
+ iocbq->iocb.ulpCommand);
+ return IOCB_ERROR;
+ break;
+
+ }
+ bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
+ bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
+ wqe->generic.abort_tag = abort_tag;
+ bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
+ bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
+ bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
+ bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
+
+ return 0;
+}
+
+/**
+ * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
+ * @phba: Pointer to HBA context object.
+ * @ring_number: SLI ring number to issue iocb on.
+ * @piocb: Pointer to command iocb.
+ * @flag: Flag indicating if this command can be put into txq.
+ *
+ * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
+ * an iocb command to an HBA with SLI-4 interface spec.
+ *
+ * This function is called with hbalock held. The function will return success
+ * after it successfully submit the iocb to firmware or after adding to the
+ * txq.
+ **/
+static int
+__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
+ struct lpfc_iocbq *piocb, uint32_t flag)
+{
+ struct lpfc_sglq *sglq;
+ uint16_t xritag;
+ union lpfc_wqe wqe;
+ struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
+ uint32_t fcp_wqidx;
+
+ if (piocb->sli4_xritag == NO_XRI) {
+ if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
+ piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
+ sglq = NULL;
+ else {
+ sglq = __lpfc_sli_get_sglq(phba);
+ if (!sglq)
+ return IOCB_ERROR;
+ piocb->sli4_xritag = sglq->sli4_xritag;
+ }
+ } else if (piocb->iocb_flag & LPFC_IO_FCP) {
+ sglq = NULL; /* These IO's already have an XRI and
+ * a mapped sgl.
+ */
+ } else {
+ /* This is a continuation of a commandi,(CX) so this
+ * sglq is on the active list
+ */
+ sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
+ if (!sglq)
+ return IOCB_ERROR;
+ }
+
+ if (sglq) {
+ xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
+ if (xritag != sglq->sli4_xritag)
+ return IOCB_ERROR;
+ }
+
+ if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
+ return IOCB_ERROR;
+
+ if (piocb->iocb_flag & LPFC_IO_FCP) {
+ fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
+ if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[fcp_wqidx], &wqe))
+ return IOCB_ERROR;
+ } else {
+ if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
+ return IOCB_ERROR;
+ }
+ lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
+
+ return 0;
+}
+
+/**
+ * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
+ *
+ * This routine wraps the actual lockless version for issusing IOCB function
+ * pointer from the lpfc_hba struct.
+ *
+ * Return codes:
+ * IOCB_ERROR - Error
+ * IOCB_SUCCESS - Success
+ * IOCB_BUSY - Busy
+ **/
+static inline int
+__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
+ struct lpfc_iocbq *piocb, uint32_t flag)
+{
+ return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
+}
+
+/**
+ * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
+ * @phba: The hba struct for which this call is being executed.
+ * @dev_grp: The HBA PCI-Device group number.
+ *
+ * This routine sets up the SLI interface API function jump table in @phba
+ * struct.
+ * Returns: 0 - success, -ENODEV - failure.
+ **/
+int
+lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
+{
+
+ switch (dev_grp) {
+ case LPFC_PCI_DEV_LP:
+ phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
+ phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
+ break;
+ case LPFC_PCI_DEV_OC:
+ phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
+ phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1419 Invalid HBA PCI-device group: 0x%x\n",
+ dev_grp);
+ return -ENODEV;
+ break;
+ }
+ phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
+ return 0;
+}
+
+/**
+ * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @piocb: Pointer to command iocb.
+ * @flag: Flag indicating if this command can be put into txq.
+ *
+ * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
+ * function. This function gets the hbalock and calls
+ * __lpfc_sli_issue_iocb function and will return the error returned
+ * by __lpfc_sli_issue_iocb function. This wrapper is used by
+ * functions which do not hold hbalock.
+ **/
+int
+lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
+ struct lpfc_iocbq *piocb, uint32_t flag)
+{
+ unsigned long iflags;
+ int rc;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ return rc;
+}
+
+/**
+ * lpfc_extra_ring_setup - Extra ring setup function
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called while driver attaches with the
+ * HBA to setup the extra ring. The extra ring is used
+ * only when driver needs to support target mode functionality
+ * or IP over FC functionalities.
+ *
+ * This function is called with no lock held.
+ **/
+static int
+lpfc_extra_ring_setup( struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli;
+ struct lpfc_sli_ring *pring;
+
+ psli = &phba->sli;
+
+ /* Adjust cmd/rsp ring iocb entries more evenly */
+
+ /* Take some away from the FCP ring */
+ pring = &psli->ring[psli->fcp_ring];
+ pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+ /* and give them to the extra ring */
+ pring = &psli->ring[psli->extra_ring];
+
+ pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+ pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+ pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+
+ /* Setup default profile for this ring */
+ pring->iotag_max = 4096;
+ pring->num_mask = 1;
+ pring->prt[0].profile = 0; /* Mask 0 */
pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
pring->prt[0].type = phba->cfg_multi_ring_type;
pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
return 0;
}
+/**
+ * lpfc_sli_async_event_handler - ASYNC iocb handler function
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @iocbq: Pointer to iocb object.
+ *
+ * This function is called by the slow ring event handler
+ * function when there is an ASYNC event iocb in the ring.
+ * This function is called with no lock held.
+ * Currently this function handles only temperature related
+ * ASYNC events. The function decodes the temperature sensor
+ * event message and posts events for the management applications.
+ **/
static void
lpfc_sli_async_event_handler(struct lpfc_hba * phba,
struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
uint16_t temp;
struct temp_event temp_event_data;
struct Scsi_Host *shost;
+ uint32_t *iocb_w;
icmd = &iocbq->iocb;
evt_code = icmd->un.asyncstat.evt_code;
if ((evt_code != ASYNC_TEMP_WARN) &&
(evt_code != ASYNC_TEMP_SAFE)) {
+ iocb_w = (uint32_t *) icmd;
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
"0346 Ring %d handler: unexpected ASYNC_STATUS"
- " evt_code 0x%x\n",
+ " evt_code 0x%x\n"
+ "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
+ "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
+ "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
+ "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
pring->ringno,
- icmd->un.asyncstat.evt_code);
+ icmd->un.asyncstat.evt_code,
+ iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
+ iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
+ iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
+ iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
+
return;
}
temp_event_data.data = (uint32_t)temp;
if (evt_code == ASYNC_TEMP_WARN) {
temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
lpfc_printf_log(phba,
- KERN_WARNING,
+ KERN_ERR,
LOG_TEMP,
"0347 Adapter is very hot, please take "
"corrective action. temperature : %d Celsius\n",
if (evt_code == ASYNC_TEMP_SAFE) {
temp_event_data.event_code = LPFC_NORMAL_TEMP;
lpfc_printf_log(phba,
- KERN_INFO,
+ KERN_ERR,
LOG_TEMP,
"0340 Adapter temperature is OK now. "
"temperature : %d Celsius\n",
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(temp_event_data), (char *) &temp_event_data,
- SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+ LPFC_NL_VENDOR_ID);
}
+/**
+ * lpfc_sli_setup - SLI ring setup function
+ * @phba: Pointer to HBA context object.
+ *
+ * lpfc_sli_setup sets up rings of the SLI interface with
+ * number of iocbs per ring and iotags. This function is
+ * called while driver attach to the HBA and before the
+ * interrupts are enabled. So there is no need for locking.
+ *
+ * This function always returns 0.
+ **/
int
lpfc_sli_setup(struct lpfc_hba *phba)
{
return 0;
}
+/**
+ * lpfc_sli_queue_setup - Queue initialization function
+ * @phba: Pointer to HBA context object.
+ *
+ * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
+ * ring. This function also initializes ring indices of each ring.
+ * This function is called during the initialization of the SLI
+ * interface of an HBA.
+ * This function is called with no lock held and always returns
+ * 1.
+ **/
int
lpfc_sli_queue_setup(struct lpfc_hba *phba)
{
INIT_LIST_HEAD(&pring->txq);
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
+ INIT_LIST_HEAD(&pring->iocb_continue_saveq);
INIT_LIST_HEAD(&pring->postbufq);
}
spin_unlock_irq(&phba->hbalock);
return 1;
}
+/**
+ * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
+ * @phba: Pointer to HBA context object.
+ *
+ * This routine flushes the mailbox command subsystem. It will unconditionally
+ * flush all the mailbox commands in the three possible stages in the mailbox
+ * command sub-system: pending mailbox command queue; the outstanding mailbox
+ * command; and completed mailbox command queue. It is caller's responsibility
+ * to make sure that the driver is in the proper state to flush the mailbox
+ * command sub-system. Namely, the posting of mailbox commands into the
+ * pending mailbox command queue from the various clients must be stopped;
+ * either the HBA is in a state that it will never works on the outstanding
+ * mailbox command (such as in EEH or ERATT conditions) or the outstanding
+ * mailbox command has been completed.
+ **/
+static void
+lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
+{
+ LIST_HEAD(completions);
+ struct lpfc_sli *psli = &phba->sli;
+ LPFC_MBOXQ_t *pmb;
+ unsigned long iflag;
+
+ /* Flush all the mailbox commands in the mbox system */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ /* The pending mailbox command queue */
+ list_splice_init(&phba->sli.mboxq, &completions);
+ /* The outstanding active mailbox command */
+ if (psli->mbox_active) {
+ list_add_tail(&psli->mbox_active->list, &completions);
+ psli->mbox_active = NULL;
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ }
+ /* The completed mailbox command queue */
+ list_splice_init(&phba->sli.mboxq_cmpl, &completions);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+
+ /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
+ while (!list_empty(&completions)) {
+ list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
+ pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
+ if (pmb->mbox_cmpl)
+ pmb->mbox_cmpl(phba, pmb);
+ }
+}
+
+/**
+ * lpfc_sli_host_down - Vport cleanup function
+ * @vport: Pointer to virtual port object.
+ *
+ * lpfc_sli_host_down is called to clean up the resources
+ * associated with a vport before destroying virtual
+ * port data structures.
+ * This function does following operations:
+ * - Free discovery resources associated with this virtual
+ * port.
+ * - Free iocbs associated with this virtual port in
+ * the txq.
+ * - Send abort for all iocb commands associated with this
+ * vport in txcmplq.
+ *
+ * This function is called with no lock held and always returns 1.
+ **/
int
lpfc_sli_host_down(struct lpfc_vport *vport)
{
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
prev_pring_flag = pring->flag;
- if (pring->ringno == LPFC_ELS_RING) /* Only slow rings */
+ /* Only slow rings */
+ if (pring->ringno == LPFC_ELS_RING) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
+ /* Set the lpfc data pending flag */
+ set_bit(LPFC_DATA_READY, &phba->data_flags);
+ }
/*
* Error everything on the txq since these iocbs have not been
* given to the FW yet.
spin_unlock_irqrestore(&phba->hbalock, flags);
- while (!list_empty(&completions)) {
- list_remove_head(&completions, iocb, struct lpfc_iocbq, list);
-
- if (!iocb->iocb_cmpl)
- lpfc_sli_release_iocbq(phba, iocb);
- else {
- iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
- iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- }
- }
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_DOWN);
return 1;
}
+/**
+ * lpfc_sli_hba_down - Resource cleanup function for the HBA
+ * @phba: Pointer to HBA context object.
+ *
+ * This function cleans up all iocb, buffers, mailbox commands
+ * while shutting down the HBA. This function is called with no
+ * lock held and always returns 1.
+ * This function does the following to cleanup driver resources:
+ * - Free discovery resources for each virtual port
+ * - Cleanup any pending fabric iocbs
+ * - Iterate through the iocb txq and free each entry
+ * in the list.
+ * - Free up any buffer posted to the HBA
+ * - Free mailbox commands in the mailbox queue.
+ **/
int
lpfc_sli_hba_down(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
- LPFC_MBOXQ_t *pmb;
- struct lpfc_iocbq *iocb;
- IOCB_t *cmd = NULL;
- int i;
+ struct lpfc_dmabuf *buf_ptr;
unsigned long flags = 0;
+ int i;
+
+ /* Shutdown the mailbox command sub-system */
+ lpfc_sli_mbox_sys_shutdown(phba);
lpfc_hba_down_prep(phba);
spin_lock_irqsave(&phba->hbalock, flags);
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
- if (pring->ringno == LPFC_ELS_RING) /* Only slow rings */
+ /* Only slow rings */
+ if (pring->ringno == LPFC_ELS_RING) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
+ /* Set the lpfc data pending flag */
+ set_bit(LPFC_DATA_READY, &phba->data_flags);
+ }
/*
* Error everything on the txq since these iocbs have not been
}
spin_unlock_irqrestore(&phba->hbalock, flags);
- while (!list_empty(&completions)) {
- list_remove_head(&completions, iocb, struct lpfc_iocbq, list);
- cmd = &iocb->iocb;
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_DOWN);
- if (!iocb->iocb_cmpl)
- lpfc_sli_release_iocbq(phba, iocb);
- else {
- cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- cmd->un.ulpWord[4] = IOERR_SLI_DOWN;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- }
+ spin_lock_irqsave(&phba->hbalock, flags);
+ list_splice_init(&phba->elsbuf, &completions);
+ phba->elsbuf_cnt = 0;
+ phba->elsbuf_prev_cnt = 0;
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+
+ while (!list_empty(&completions)) {
+ list_remove_head(&completions, buf_ptr,
+ struct lpfc_dmabuf, list);
+ lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
+ kfree(buf_ptr);
}
/* Return any active mbox cmds */
del_timer_sync(&psli->mbox_tmo);
- spin_lock_irqsave(&phba->hbalock, flags);
- spin_lock(&phba->pport->work_port_lock);
+ spin_lock_irqsave(&phba->pport->work_port_lock, flags);
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
- spin_unlock(&phba->pport->work_port_lock);
+ spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
- if (psli->mbox_active) {
- list_add_tail(&psli->mbox_active->list, &completions);
- psli->mbox_active = NULL;
- psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
- }
+ return 1;
+}
- /* Return any pending or completed mbox cmds */
- list_splice_init(&phba->sli.mboxq, &completions);
- list_splice_init(&phba->sli.mboxq_cmpl, &completions);
- INIT_LIST_HEAD(&psli->mboxq);
- INIT_LIST_HEAD(&psli->mboxq_cmpl);
+/**
+ * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
+ * @phba: Pointer to HBA context object.
+ *
+ * This function cleans up all queues, iocb, buffers, mailbox commands while
+ * shutting down the SLI4 HBA FCoE function. This function is called with no
+ * lock held and always returns 1.
+ *
+ * This function does the following to cleanup driver FCoE function resources:
+ * - Free discovery resources for each virtual port
+ * - Cleanup any pending fabric iocbs
+ * - Iterate through the iocb txq and free each entry in the list.
+ * - Free up any buffer posted to the HBA.
+ * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
+ * - Free mailbox commands in the mailbox queue.
+ **/
+int
+lpfc_sli4_hba_down(struct lpfc_hba *phba)
+{
+ /* Stop the SLI4 device port */
+ lpfc_stop_port(phba);
- spin_unlock_irqrestore(&phba->hbalock, flags);
+ /* Tear down the queues in the HBA */
+ lpfc_sli4_queue_unset(phba);
+
+ /* unregister default FCFI from the HBA */
+ lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
- while (!list_empty(&completions)) {
- list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
- pmb->mb.mbxStatus = MBX_NOT_FINISHED;
- if (pmb->mbox_cmpl) {
- pmb->mbox_cmpl(phba,pmb);
- }
- }
return 1;
}
+/**
+ * lpfc_sli_pcimem_bcopy - SLI memory copy function
+ * @srcp: Source memory pointer.
+ * @destp: Destination memory pointer.
+ * @cnt: Number of words required to be copied.
+ *
+ * This function is used for copying data between driver memory
+ * and the SLI memory. This function also changes the endianness
+ * of each word if native endianness is different from SLI
+ * endianness. This function can be called with or without
+ * lock.
+ **/
void
lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
{
}
}
+
+/**
+ * lpfc_sli_bemem_bcopy - SLI memory copy function
+ * @srcp: Source memory pointer.
+ * @destp: Destination memory pointer.
+ * @cnt: Number of words required to be copied.
+ *
+ * This function is used for copying data between a data structure
+ * with big endian representation to local endianness.
+ * This function can be called with or without lock.
+ **/
+void
+lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
+{
+ uint32_t *src = srcp;
+ uint32_t *dest = destp;
+ uint32_t ldata;
+ int i;
+
+ for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
+ ldata = *src;
+ ldata = be32_to_cpu(ldata);
+ *dest = ldata;
+ src++;
+ dest++;
+ }
+}
+
+/**
+ * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @mp: Pointer to driver buffer object.
+ *
+ * This function is called with no lock held.
+ * It always return zero after adding the buffer to the postbufq
+ * buffer list.
+ **/
int
lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_dmabuf *mp)
return 0;
}
+/**
+ * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
+ * @phba: Pointer to HBA context object.
+ *
+ * When HBQ is enabled, buffers are searched based on tags. This function
+ * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
+ * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
+ * does not conflict with tags of buffer posted for unsolicited events.
+ * The function returns the allocated tag. The function is called with
+ * no locks held.
+ **/
uint32_t
lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
{
return phba->buffer_tag_count;
}
+/**
+ * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @tag: Buffer tag.
+ *
+ * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
+ * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
+ * iocb is posted to the response ring with the tag of the buffer.
+ * This function searches the pring->postbufq list using the tag
+ * to find buffer associated with CMD_IOCB_RET_XRI64_CX
+ * iocb. If the buffer is found then lpfc_dmabuf object of the
+ * buffer is returned to the caller else NULL is returned.
+ * This function is called with no lock held.
+ **/
struct lpfc_dmabuf *
lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint32_t tag)
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "0410 Cannot find virtual addr for buffer tag on "
+ "0402 Cannot find virtual addr for buffer tag on "
"ring %d Data x%lx x%p x%p x%x\n",
pring->ringno, (unsigned long) tag,
slp->next, slp->prev, pring->postbufq_cnt);
return NULL;
}
+/**
+ * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @phys: DMA address of the buffer.
+ *
+ * This function searches the buffer list using the dma_address
+ * of unsolicited event to find the driver's lpfc_dmabuf object
+ * corresponding to the dma_address. The function returns the
+ * lpfc_dmabuf object if a buffer is found else it returns NULL.
+ * This function is called by the ct and els unsolicited event
+ * handlers to get the buffer associated with the unsolicited
+ * event.
+ *
+ * This function is called with no lock held.
+ **/
struct lpfc_dmabuf *
lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dma_addr_t phys)
return NULL;
}
+/**
+ * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
+ * @phba: Pointer to HBA context object.
+ * @cmdiocb: Pointer to driver command iocb object.
+ * @rspiocb: Pointer to driver response iocb object.
+ *
+ * This function is the completion handler for the abort iocbs for
+ * ELS commands. This function is called from the ELS ring event
+ * handler with no lock held. This function frees memory resources
+ * associated with the abort iocb.
+ **/
static void
lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
irsp->ulpStatus, irsp->un.ulpWord[4]);
/*
+ * If the iocb is not found in Firmware queue the iocb
+ * might have completed already. Do not free it again.
+ */
+ if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
+ return;
+ }
+ /*
* make sure we have the right iocbq before taking it
* off the txcmplq and try to call completion routine.
*/
pring->txcmplq_cnt--;
spin_unlock_irq(&phba->hbalock);
+ /* Firmware could still be in progress of DMAing
+ * payload, so don't free data buffer till after
+ * a hbeat.
+ */
+ abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
+
abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED;
return;
}
+/**
+ * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
+ * @phba: Pointer to HBA context object.
+ * @cmdiocb: Pointer to driver command iocb object.
+ * @rspiocb: Pointer to driver response iocb object.
+ *
+ * The function is called from SLI ring event handler with no
+ * lock held. This function is the completion handler for ELS commands
+ * which are aborted. The function frees memory resources used for
+ * the aborted ELS commands.
+ **/
static void
lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
- "0133 Ignoring ELS cmd tag x%x completion Data: "
+ "0139 Ignoring ELS cmd tag x%x completion Data: "
"x%x x%x x%x\n",
irsp->ulpIoTag, irsp->ulpStatus,
irsp->un.ulpWord[4], irsp->ulpTimeout);
return;
}
+/**
+ * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
+ * @phba: Pointer to HBA context object.
+ * @pring: Pointer to driver SLI ring object.
+ * @cmdiocb: Pointer to driver command iocb object.
+ *
+ * This function issues an abort iocb for the provided command
+ * iocb. This function is called with hbalock held.
+ * The function returns 0 when it fails due to memory allocation
+ * failure or when the command iocb is an abort request.
+ **/
int
lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *cmdiocb)
iabt = &abtsiocbp->iocb;
iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
iabt->un.acxri.abortContextTag = icmd->ulpContext;
- iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
+ else
+ iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
iabt->ulpLe = 1;
iabt->ulpClass = icmd->ulpClass;
"abort cmd iotag x%x\n",
iabt->un.acxri.abortContextTag,
iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
- retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0);
+ retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
+ if (retval)
+ __lpfc_sli_release_iocbq(phba, abtsiocbp);
abort_iotag_exit:
/*
* Caller to this routine should check for IOCB_ERROR
return retval;
}
+/**
+ * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
+ * @iocbq: Pointer to driver iocb object.
+ * @vport: Pointer to driver virtual port object.
+ * @tgt_id: SCSI ID of the target.
+ * @lun_id: LUN ID of the scsi device.
+ * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
+ *
+ * This function acts as an iocb filter for functions which abort or count
+ * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
+ * 0 if the filtering criteria is met for the given iocb and will return
+ * 1 if the filtering criteria is not met.
+ * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
+ * given iocb is for the SCSI device specified by vport, tgt_id and
+ * lun_id parameter.
+ * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
+ * given iocb is for the SCSI target specified by vport and tgt_id
+ * parameters.
+ * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
+ * given iocb is for the SCSI host associated with the given vport.
+ * This function is called with no locks held.
+ **/
static int
lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
uint16_t tgt_id, uint64_t lun_id,
lpfc_ctx_cmd ctx_cmd)
{
struct lpfc_scsi_buf *lpfc_cmd;
- struct scsi_cmnd *cmnd;
int rc = 1;
if (!(iocbq->iocb_flag & LPFC_IO_FCP))
return rc;
lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
- cmnd = lpfc_cmd->pCmd;
- if (cmnd == NULL)
+ if (lpfc_cmd->pCmd == NULL)
return rc;
switch (ctx_cmd) {
case LPFC_CTX_LUN:
- if ((cmnd->device->id == tgt_id) &&
- (cmnd->device->lun == lun_id))
+ if ((lpfc_cmd->rdata->pnode) &&
+ (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
+ (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
rc = 0;
break;
case LPFC_CTX_TGT:
- if (cmnd->device->id == tgt_id)
+ if ((lpfc_cmd->rdata->pnode) &&
+ (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
rc = 0;
break;
case LPFC_CTX_HOST:
break;
default:
printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
- __FUNCTION__, ctx_cmd);
+ __func__, ctx_cmd);
break;
}
return rc;
}
+/**
+ * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
+ * @vport: Pointer to virtual port.
+ * @tgt_id: SCSI ID of the target.
+ * @lun_id: LUN ID of the scsi device.
+ * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
+ *
+ * This function returns number of FCP commands pending for the vport.
+ * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
+ * commands pending on the vport associated with SCSI device specified
+ * by tgt_id and lun_id parameters.
+ * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
+ * commands pending on the vport associated with SCSI target specified
+ * by tgt_id parameter.
+ * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
+ * commands pending on the vport.
+ * This function returns the number of iocbs which satisfy the filter.
+ * This function is called without any lock held.
+ **/
int
lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
lpfc_ctx_cmd ctx_cmd)
return sum;
}
+/**
+ * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
+ * @phba: Pointer to HBA context object
+ * @cmdiocb: Pointer to command iocb object.
+ * @rspiocb: Pointer to response iocb object.
+ *
+ * This function is called when an aborted FCP iocb completes. This
+ * function is called by the ring event handler with no lock held.
+ * This function frees the iocb.
+ **/
void
lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
return;
}
+/**
+ * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
+ * @vport: Pointer to virtual port.
+ * @pring: Pointer to driver SLI ring object.
+ * @tgt_id: SCSI ID of the target.
+ * @lun_id: LUN ID of the scsi device.
+ * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
+ *
+ * This function sends an abort command for every SCSI command
+ * associated with the given virtual port pending on the ring
+ * filtered by lpfc_sli_validate_fcp_iocb function.
+ * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
+ * FCP iocbs associated with lun specified by tgt_id and lun_id
+ * parameters
+ * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
+ * FCP iocbs associated with SCSI target specified by tgt_id parameter.
+ * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
+ * FCP iocbs associated with virtual port.
+ * This function returns number of iocbs it failed to abort.
+ * This function is called with no locks held.
+ **/
int
lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
cmd = &iocbq->iocb;
abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
- abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
+ else
+ abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
abtsiocb->iocb.ulpLe = 1;
abtsiocb->iocb.ulpClass = cmd->ulpClass;
abtsiocb->vport = phba->pport;
/* Setup callback routine and issue the command. */
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
- ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
+ ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
+ abtsiocb, 0);
if (ret_val == IOCB_ERROR) {
lpfc_sli_release_iocbq(phba, abtsiocb);
errcnt++;
return errcnt;
}
+/**
+ * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
+ * @phba: Pointer to HBA context object.
+ * @cmdiocbq: Pointer to command iocb.
+ * @rspiocbq: Pointer to response iocb.
+ *
+ * This function is the completion handler for iocbs issued using
+ * lpfc_sli_issue_iocb_wait function. This function is called by the
+ * ring event handler function without any lock held. This function
+ * can be called from both worker thread context and interrupt
+ * context. This function also can be called from other thread which
+ * cleans up the SLI layer objects.
+ * This function copy the contents of the response iocb to the
+ * response iocb memory object provided by the caller of
+ * lpfc_sli_issue_iocb_wait and then wakes up the thread which
+ * sleeps for the iocb completion.
+ **/
static void
lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
return;
}
-/*
- * Issue the caller's iocb and wait for its completion, but no longer than the
- * caller's timeout. Note that iocb_flags is cleared before the
- * lpfc_sli_issue_call since the wake routine sets a unique value and by
- * definition this is a wait function.
- */
+/**
+ * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
+ * @phba: Pointer to HBA context object..
+ * @piocbq: Pointer to command iocb.
+ * @flag: Flag to test.
+ *
+ * This routine grabs the hbalock and then test the iocb_flag to
+ * see if the passed in flag is set.
+ * Returns:
+ * 1 if flag is set.
+ * 0 if flag is not set.
+ **/
+static int
+lpfc_chk_iocb_flg(struct lpfc_hba *phba,
+ struct lpfc_iocbq *piocbq, uint32_t flag)
+{
+ unsigned long iflags;
+ int ret;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ ret = piocbq->iocb_flag & flag;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return ret;
+
+}
+/**
+ * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
+ * @phba: Pointer to HBA context object..
+ * @pring: Pointer to sli ring.
+ * @piocb: Pointer to command iocb.
+ * @prspiocbq: Pointer to response iocb.
+ * @timeout: Timeout in number of seconds.
+ *
+ * This function issues the iocb to firmware and waits for the
+ * iocb to complete. If the iocb command is not
+ * completed within timeout seconds, it returns IOCB_TIMEDOUT.
+ * Caller should not free the iocb resources if this function
+ * returns IOCB_TIMEDOUT.
+ * The function waits for the iocb completion using an
+ * non-interruptible wait.
+ * This function will sleep while waiting for iocb completion.
+ * So, this function should not be called from any context which
+ * does not allow sleeping. Due to the same reason, this function
+ * cannot be called with interrupt disabled.
+ * This function assumes that the iocb completions occur while
+ * this function sleep. So, this function cannot be called from
+ * the thread which process iocb completion for this ring.
+ * This function clears the iocb_flag of the iocb object before
+ * issuing the iocb and the iocb completion handler sets this
+ * flag and wakes this thread when the iocb completes.
+ * The contents of the response iocb will be copied to prspiocbq
+ * by the completion handler when the command completes.
+ * This function returns IOCB_SUCCESS when success.
+ * This function is called with no lock held.
+ **/
int
lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
- struct lpfc_sli_ring *pring,
+ uint32_t ring_number,
struct lpfc_iocbq *piocb,
struct lpfc_iocbq *prspiocbq,
uint32_t timeout)
readl(phba->HCregaddr); /* flush */
}
- retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
+ retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
if (retval == IOCB_SUCCESS) {
timeout_req = timeout * HZ;
timeleft = wait_event_timeout(done_q,
- piocb->iocb_flag & LPFC_IO_WAKE,
+ lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
timeout_req);
if (piocb->iocb_flag & LPFC_IO_WAKE) {
}
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
- ":0332 IOCB wait issue failed, Data x%x\n",
+ "0332 IOCB wait issue failed, Data x%x\n",
retval);
retval = IOCB_ERROR;
}
return retval;
}
+/**
+ * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
+ * @phba: Pointer to HBA context object.
+ * @pmboxq: Pointer to driver mailbox object.
+ * @timeout: Timeout in number of seconds.
+ *
+ * This function issues the mailbox to firmware and waits for the
+ * mailbox command to complete. If the mailbox command is not
+ * completed within timeout seconds, it returns MBX_TIMEOUT.
+ * The function waits for the mailbox completion using an
+ * interruptible wait. If the thread is woken up due to a
+ * signal, MBX_TIMEOUT error is returned to the caller. Caller
+ * should not free the mailbox resources, if this function returns
+ * MBX_TIMEOUT.
+ * This function will sleep while waiting for mailbox completion.
+ * So, this function should not be called from any context which
+ * does not allow sleeping. Due to the same reason, this function
+ * cannot be called with interrupt disabled.
+ * This function assumes that the mailbox completion occurs while
+ * this function sleep. So, this function cannot be called from
+ * the worker thread which processes mailbox completion.
+ * This function is called in the context of HBA management
+ * applications.
+ * This function returns MBX_SUCCESS when successful.
+ * This function is called with no lock held.
+ **/
int
lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
uint32_t timeout)
if (pmboxq->context1)
return MBX_NOT_FINISHED;
+ pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
/* setup wake call as IOCB callback */
pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
/* setup context field to pass wait_queue pointer to wake function */
return retval;
}
-int
-lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
+/**
+ * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
+ * @phba: Pointer to HBA context.
+ *
+ * This function is called to shutdown the driver's mailbox sub-system.
+ * It first marks the mailbox sub-system is in a block state to prevent
+ * the asynchronous mailbox command from issued off the pending mailbox
+ * command queue. If the mailbox command sub-system shutdown is due to
+ * HBA error conditions such as EEH or ERATT, this routine shall invoke
+ * the mailbox sub-system flush routine to forcefully bring down the
+ * mailbox sub-system. Otherwise, if it is due to normal condition (such
+ * as with offline or HBA function reset), this routine will wait for the
+ * outstanding mailbox command to complete before invoking the mailbox
+ * sub-system flush routine to gracefully bring down mailbox sub-system.
+ **/
+void
+lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
{
- struct lpfc_vport *vport = phba->pport;
- int i = 0;
- uint32_t ha_copy;
+ struct lpfc_sli *psli = &phba->sli;
+ uint8_t actcmd = MBX_HEARTBEAT;
+ unsigned long timeout;
- while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) {
- if (i++ > LPFC_MBOX_TMO * 1000)
- return 1;
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
- /*
- * Call lpfc_sli_handle_mb_event only if a mailbox cmd
- * did finish. This way we won't get the misleading
- * "Stray Mailbox Interrupt" message.
- */
+ if (psli->sli_flag & LPFC_SLI_ACTIVE) {
spin_lock_irq(&phba->hbalock);
- ha_copy = phba->work_ha;
- phba->work_ha &= ~HA_MBATT;
+ if (phba->sli.mbox_active)
+ actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
+ spin_unlock_irq(&phba->hbalock);
+ /* Determine how long we might wait for the active mailbox
+ * command to be gracefully completed by firmware.
+ */
+ timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
+ 1000) + jiffies;
+ while (phba->sli.mbox_active) {
+ /* Check active mailbox complete status every 2ms */
+ msleep(2);
+ if (time_after(jiffies, timeout))
+ /* Timeout, let the mailbox flush routine to
+ * forcefully release active mailbox command
+ */
+ break;
+ }
+ }
+ lpfc_sli_mbox_sys_flush(phba);
+}
+
+/**
+ * lpfc_sli_eratt_read - read sli-3 error attention events
+ * @phba: Pointer to HBA context.
+ *
+ * This function is called to read the SLI3 device error attention registers
+ * for possible error attention events. The caller must hold the hostlock
+ * with spin_lock_irq().
+ *
+ * This fucntion returns 1 when there is Error Attention in the Host Attention
+ * Register and returns 0 otherwise.
+ **/
+static int
+lpfc_sli_eratt_read(struct lpfc_hba *phba)
+{
+ uint32_t ha_copy;
+
+ /* Read chip Host Attention (HA) register */
+ ha_copy = readl(phba->HAregaddr);
+ if (ha_copy & HA_ERATT) {
+ /* Read host status register to retrieve error event */
+ lpfc_sli_read_hs(phba);
+
+ /* Check if there is a deferred error condition is active */
+ if ((HS_FFER1 & phba->work_hs) &&
+ ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
+ HS_FFER6 | HS_FFER7) & phba->work_hs)) {
+ phba->hba_flag |= DEFER_ERATT;
+ /* Clear all interrupt enable conditions */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr);
+ }
+
+ /* Set the driver HA work bitmap */
+ phba->work_ha |= HA_ERATT;
+ /* Indicate polling handles this ERATT */
+ phba->hba_flag |= HBA_ERATT_HANDLED;
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * lpfc_sli4_eratt_read - read sli-4 error attention events
+ * @phba: Pointer to HBA context.
+ *
+ * This function is called to read the SLI4 device error attention registers
+ * for possible error attention events. The caller must hold the hostlock
+ * with spin_lock_irq().
+ *
+ * This fucntion returns 1 when there is Error Attention in the Host Attention
+ * Register and returns 0 otherwise.
+ **/
+static int
+lpfc_sli4_eratt_read(struct lpfc_hba *phba)
+{
+ uint32_t uerr_sta_hi, uerr_sta_lo;
+ uint32_t onlnreg0, onlnreg1;
+
+ /* For now, use the SLI4 device internal unrecoverable error
+ * registers for error attention. This can be changed later.
+ */
+ onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
+ onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
+ if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
+ uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
+ uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
+ if (uerr_sta_lo || uerr_sta_hi) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1423 HBA Unrecoverable error: "
+ "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
+ "online0_reg=0x%x, online1_reg=0x%x\n",
+ uerr_sta_lo, uerr_sta_hi,
+ onlnreg0, onlnreg1);
+ phba->work_status[0] = uerr_sta_lo;
+ phba->work_status[1] = uerr_sta_hi;
+ /* Set the driver HA work bitmap */
+ phba->work_ha |= HA_ERATT;
+ /* Indicate polling handles this ERATT */
+ phba->hba_flag |= HBA_ERATT_HANDLED;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/**
+ * lpfc_sli_check_eratt - check error attention events
+ * @phba: Pointer to HBA context.
+ *
+ * This function is called from timer soft interrupt context to check HBA's
+ * error attention register bit for error attention events.
+ *
+ * This fucntion returns 1 when there is Error Attention in the Host Attention
+ * Register and returns 0 otherwise.
+ **/
+int
+lpfc_sli_check_eratt(struct lpfc_hba *phba)
+{
+ uint32_t ha_copy;
+
+ /* If somebody is waiting to handle an eratt, don't process it
+ * here. The brdkill function will do this.
+ */
+ if (phba->link_flag & LS_IGNORE_ERATT)
+ return 0;
+
+ /* Check if interrupt handler handles this ERATT */
+ spin_lock_irq(&phba->hbalock);
+ if (phba->hba_flag & HBA_ERATT_HANDLED) {
+ /* Interrupt handler has handled ERATT */
+ spin_unlock_irq(&phba->hbalock);
+ return 0;
+ }
+
+ /*
+ * If there is deferred error attention, do not check for error
+ * attention
+ */
+ if (unlikely(phba->hba_flag & DEFER_ERATT)) {
spin_unlock_irq(&phba->hbalock);
+ return 0;
+ }
- if (ha_copy & HA_MBATT)
- if (lpfc_sli_handle_mb_event(phba) == 0)
- i = 0;
+ /* If PCI channel is offline, don't process it */
+ if (unlikely(pci_channel_offline(phba->pcidev))) {
+ spin_unlock_irq(&phba->hbalock);
+ return 0;
+ }
- msleep(1);
+ switch (phba->sli_rev) {
+ case LPFC_SLI_REV2:
+ case LPFC_SLI_REV3:
+ /* Read chip Host Attention (HA) register */
+ ha_copy = lpfc_sli_eratt_read(phba);
+ break;
+ case LPFC_SLI_REV4:
+ /* Read devcie Uncoverable Error (UERR) registers */
+ ha_copy = lpfc_sli4_eratt_read(phba);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0299 Invalid SLI revision (%d)\n",
+ phba->sli_rev);
+ ha_copy = 0;
+ break;
}
+ spin_unlock_irq(&phba->hbalock);
+
+ return ha_copy;
+}
+
+/**
+ * lpfc_intr_state_check - Check device state for interrupt handling
+ * @phba: Pointer to HBA context.
+ *
+ * This inline routine checks whether a device or its PCI slot is in a state
+ * that the interrupt should be handled.
+ *
+ * This function returns 0 if the device or the PCI slot is in a state that
+ * interrupt should be handled, otherwise -EIO.
+ */
+static inline int
+lpfc_intr_state_check(struct lpfc_hba *phba)
+{
+ /* If the pci channel is offline, ignore all the interrupts */
+ if (unlikely(pci_channel_offline(phba->pcidev)))
+ return -EIO;
+
+ /* Update device level interrupt statistics */
+ phba->sli.slistat.sli_intr++;
+
+ /* Ignore all interrupts during initialization. */
+ if (unlikely(phba->link_state < LPFC_LINK_DOWN))
+ return -EIO;
- return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0;
+ return 0;
}
+/**
+ * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
+ * @irq: Interrupt number.
+ * @dev_id: The device context pointer.
+ *
+ * This function is directly called from the PCI layer as an interrupt
+ * service routine when device with SLI-3 interface spec is enabled with
+ * MSI-X multi-message interrupt mode and there are slow-path events in
+ * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
+ * interrupt mode, this function is called as part of the device-level
+ * interrupt handler. When the PCI slot is in error recovery or the HBA
+ * is undergoing initialization, the interrupt handler will not process
+ * the interrupt. The link attention and ELS ring attention events are
+ * handled by the worker thread. The interrupt handler signals the worker
+ * thread and returns for these events. This function is called without
+ * any lock held. It gets the hbalock to access and update SLI data
+ * structures.
+ *
+ * This function returns IRQ_HANDLED when interrupt is handled else it
+ * returns IRQ_NONE.
+ **/
irqreturn_t
-lpfc_intr_handler(int irq, void *dev_id)
+lpfc_sli_sp_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
uint32_t ha_copy;
uint32_t work_ha_copy;
unsigned long status;
+ unsigned long iflag;
uint32_t control;
MAILBOX_t *mbox, *pmbox;
* Get the driver's phba structure from the dev_id and
* assume the HBA is not interrupting.
*/
- phba = (struct lpfc_hba *) dev_id;
+ phba = (struct lpfc_hba *)dev_id;
if (unlikely(!phba))
return IRQ_NONE;
- /* If the pci channel is offline, ignore all the interrupts. */
- if (unlikely(pci_channel_offline(phba->pcidev)))
- return IRQ_NONE;
-
- phba->sli.slistat.sli_intr++;
-
/*
- * Call the HBA to see if it is interrupting. If not, don't claim
- * the interrupt
+ * Stuff needs to be attented to when this function is invoked as an
+ * individual interrupt handler in MSI-X multi-message interrupt mode
*/
+ if (phba->intr_type == MSIX) {
+ /* Check device state for handling interrupt */
+ if (lpfc_intr_state_check(phba))
+ return IRQ_NONE;
+ /* Need to read HA REG for slow-path events */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ ha_copy = readl(phba->HAregaddr);
+ /* If somebody is waiting to handle an eratt don't process it
+ * here. The brdkill function will do this.
+ */
+ if (phba->link_flag & LS_IGNORE_ERATT)
+ ha_copy &= ~HA_ERATT;
+ /* Check the need for handling ERATT in interrupt handler */
+ if (ha_copy & HA_ERATT) {
+ if (phba->hba_flag & HBA_ERATT_HANDLED)
+ /* ERATT polling has handled ERATT */
+ ha_copy &= ~HA_ERATT;
+ else
+ /* Indicate interrupt handler handles ERATT */
+ phba->hba_flag |= HBA_ERATT_HANDLED;
+ }
- /* Ignore all interrupts during initialization. */
- if (unlikely(phba->link_state < LPFC_LINK_DOWN))
- return IRQ_NONE;
-
- /*
- * Read host attention register to determine interrupt source
- * Clear Attention Sources, except Error Attention (to
- * preserve status) and Link Attention
- */
- spin_lock(&phba->hbalock);
- ha_copy = readl(phba->HAregaddr);
- /* If somebody is waiting to handle an eratt don't process it
- * here. The brdkill function will do this.
- */
- if (phba->link_flag & LS_IGNORE_ERATT)
- ha_copy &= ~HA_ERATT;
- writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
- readl(phba->HAregaddr); /* flush */
- spin_unlock(&phba->hbalock);
+ /*
+ * If there is deferred error attention, do not check for any
+ * interrupt.
+ */
+ if (unlikely(phba->hba_flag & DEFER_ERATT)) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return IRQ_NONE;
+ }
- if (unlikely(!ha_copy))
- return IRQ_NONE;
+ /* Clear up only attention source related to slow-path */
+ writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
+ phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ } else
+ ha_copy = phba->ha_copy;
work_ha_copy = ha_copy & phba->work_ha_mask;
- if (unlikely(work_ha_copy)) {
+ if (work_ha_copy) {
if (work_ha_copy & HA_LATT) {
if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
/*
* Turn off Link Attention interrupts
* until CLEAR_LA done
*/
- spin_lock(&phba->hbalock);
+ spin_lock_irqsave(&phba->hbalock, iflag);
phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control &= ~HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- spin_unlock(&phba->hbalock);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
}
else
work_ha_copy &= ~HA_LATT;
}
- if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) {
+ if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
/*
* Turn off Slow Rings interrupts, LPFC_ELS_RING is
* the only slow ring.
(HA_RXMASK << (4*LPFC_ELS_RING)));
status >>= (4*LPFC_ELS_RING);
if (status & HA_RXMASK) {
- spin_lock(&phba->hbalock);
+ spin_lock_irqsave(&phba->hbalock, iflag);
control = readl(phba->HCregaddr);
lpfc_debugfs_slow_ring_trc(phba,
"pwork:x%x hawork:x%x wait:x%x",
phba->work_ha, work_ha_copy,
(uint32_t)((unsigned long)
- phba->work_wait));
+ &phba->work_waitq));
control &=
~(HC_R0INT_ENA << LPFC_ELS_RING);
"x%x hawork:x%x wait:x%x",
phba->work_ha, work_ha_copy,
(uint32_t)((unsigned long)
- phba->work_wait));
+ &phba->work_waitq));
}
- spin_unlock(&phba->hbalock);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
}
}
-
+ spin_lock_irqsave(&phba->hbalock, iflag);
if (work_ha_copy & HA_ERATT) {
- phba->link_state = LPFC_HBA_ERROR;
+ lpfc_sli_read_hs(phba);
/*
- * There was a link/board error. Read the
- * status register to retrieve the error event
- * and process it.
+ * Check if there is a deferred error condition
+ * is active
*/
- phba->sli.slistat.err_attn_event++;
- /* Save status info */
- phba->work_hs = readl(phba->HSregaddr);
- phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
- phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
-
- /* Clear Chip error bit */
- writel(HA_ERATT, phba->HAregaddr);
- readl(phba->HAregaddr); /* flush */
- phba->pport->stopped = 1;
+ if ((HS_FFER1 & phba->work_hs) &&
+ ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
+ HS_FFER6 | HS_FFER7) & phba->work_hs)) {
+ phba->hba_flag |= DEFER_ERATT;
+ /* Clear all interrupt enable conditions */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr);
+ }
}
- if ((work_ha_copy & HA_MBATT) &&
- (phba->sli.mbox_active)) {
+ if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
pmb = phba->sli.mbox_active;
- pmbox = &pmb->mb;
- mbox = &phba->slim2p->mbx;
+ pmbox = &pmb->u.mb;
+ mbox = phba->mbox;
vport = pmb->vport;
/* First check out the status word */
lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
if (pmbox->mbxOwner != OWN_HOST) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
/*
* Stray Mailbox Interrupt, mbxCommand <cmd>
* mbxStatus <status>
*/
- lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX |
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
LOG_SLI,
"(%d):0304 Stray Mailbox "
"Interrupt mbxCommand x%x "
(vport ? vport->vpi : 0),
pmbox->mbxCommand,
pmbox->mbxStatus);
- }
- phba->last_completion_time = jiffies;
- del_timer_sync(&phba->sli.mbox_tmo);
-
- phba->sli.mbox_active = NULL;
- if (pmb->mbox_cmpl) {
- lpfc_sli_pcimem_bcopy(mbox, pmbox,
- MAILBOX_CMD_SIZE);
- }
- if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
- pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
-
- lpfc_debugfs_disc_trc(vport,
- LPFC_DISC_TRC_MBOX_VPORT,
- "MBOX dflt rpi: : status:x%x rpi:x%x",
- (uint32_t)pmbox->mbxStatus,
- pmbox->un.varWords[0], 0);
-
- if ( !pmbox->mbxStatus) {
- mp = (struct lpfc_dmabuf *)
- (pmb->context1);
- ndlp = (struct lpfc_nodelist *)
- pmb->context2;
-
- /* Reg_LOGIN of dflt RPI was successful.
- * new lets get rid of the RPI using the
- * same mbox buffer.
- */
- lpfc_unreg_login(phba, vport->vpi,
- pmbox->un.varWords[0], pmb);
- pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
- pmb->context1 = mp;
- pmb->context2 = ndlp;
- pmb->vport = vport;
- spin_lock(&phba->hbalock);
- phba->sli.sli_flag &=
- ~LPFC_SLI_MBOX_ACTIVE;
- spin_unlock(&phba->hbalock);
- goto send_current_mbox;
+ /* clear mailbox attention bit */
+ work_ha_copy &= ~HA_MBATT;
+ } else {
+ phba->sli.mbox_active = NULL;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ phba->last_completion_time = jiffies;
+ del_timer(&phba->sli.mbox_tmo);
+ if (pmb->mbox_cmpl) {
+ lpfc_sli_pcimem_bcopy(mbox, pmbox,
+ MAILBOX_CMD_SIZE);
}
+ if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
+ pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
+
+ lpfc_debugfs_disc_trc(vport,
+ LPFC_DISC_TRC_MBOX_VPORT,
+ "MBOX dflt rpi: : "
+ "status:x%x rpi:x%x",
+ (uint32_t)pmbox->mbxStatus,
+ pmbox->un.varWords[0], 0);
+
+ if (!pmbox->mbxStatus) {
+ mp = (struct lpfc_dmabuf *)
+ (pmb->context1);
+ ndlp = (struct lpfc_nodelist *)
+ pmb->context2;
+
+ /* Reg_LOGIN of dflt RPI was
+ * successful. new lets get
+ * rid of the RPI using the
+ * same mbox buffer.
+ */
+ lpfc_unreg_login(phba,
+ vport->vpi,
+ pmbox->un.varWords[0],
+ pmb);
+ pmb->mbox_cmpl =
+ lpfc_mbx_cmpl_dflt_rpi;
+ pmb->context1 = mp;
+ pmb->context2 = ndlp;
+ pmb->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba,
+ pmb,
+ MBX_NOWAIT);
+ if (rc != MBX_BUSY)
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "0350 rc should have"
+ "been MBX_BUSY");
+ if (rc != MBX_NOT_FINISHED)
+ goto send_current_mbox;
+ }
+ }
+ spin_lock_irqsave(
+ &phba->pport->work_port_lock,
+ iflag);
+ phba->pport->work_port_events &=
+ ~WORKER_MBOX_TMO;
+ spin_unlock_irqrestore(
+ &phba->pport->work_port_lock,
+ iflag);
+ lpfc_mbox_cmpl_put(phba, pmb);
}
- spin_lock(&phba->pport->work_port_lock);
- phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
- spin_unlock(&phba->pport->work_port_lock);
- lpfc_mbox_cmpl_put(phba, pmb);
- }
+ } else
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+
if ((work_ha_copy & HA_MBATT) &&
(phba->sli.mbox_active == NULL)) {
-send_next_mbox:
- spin_lock(&phba->hbalock);
- phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
- pmb = lpfc_mbox_get(phba);
- spin_unlock(&phba->hbalock);
send_current_mbox:
/* Process next mailbox command if there is one */
- if (pmb != NULL) {
- rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
- if (rc == MBX_NOT_FINISHED) {
- pmb->mb.mbxStatus = MBX_NOT_FINISHED;
- lpfc_mbox_cmpl_put(phba, pmb);
- goto send_next_mbox;
- }
- }
-
+ do {
+ rc = lpfc_sli_issue_mbox(phba, NULL,
+ MBX_NOWAIT);
+ } while (rc == MBX_NOT_FINISHED);
+ if (rc != MBX_SUCCESS)
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
+ LOG_SLI, "0349 rc should be "
+ "MBX_SUCCESS");
}
- spin_lock(&phba->hbalock);
+ spin_lock_irqsave(&phba->hbalock, iflag);
phba->work_ha |= work_ha_copy;
- if (phba->work_wait)
- lpfc_worker_wake_up(phba);
- spin_unlock(&phba->hbalock);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ lpfc_worker_wake_up(phba);
}
+ return IRQ_HANDLED;
- ha_copy &= ~(phba->work_ha_mask);
+} /* lpfc_sli_sp_intr_handler */
+
+/**
+ * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
+ * @irq: Interrupt number.
+ * @dev_id: The device context pointer.
+ *
+ * This function is directly called from the PCI layer as an interrupt
+ * service routine when device with SLI-3 interface spec is enabled with
+ * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
+ * ring event in the HBA. However, when the device is enabled with either
+ * MSI or Pin-IRQ interrupt mode, this function is called as part of the
+ * device-level interrupt handler. When the PCI slot is in error recovery
+ * or the HBA is undergoing initialization, the interrupt handler will not
+ * process the interrupt. The SCSI FCP fast-path ring event are handled in
+ * the intrrupt context. This function is called without any lock held.
+ * It gets the hbalock to access and update SLI data structures.
+ *
+ * This function returns IRQ_HANDLED when interrupt is handled else it
+ * returns IRQ_NONE.
+ **/
+irqreturn_t
+lpfc_sli_fp_intr_handler(int irq, void *dev_id)
+{
+ struct lpfc_hba *phba;
+ uint32_t ha_copy;
+ unsigned long status;
+ unsigned long iflag;
+
+ /* Get the driver's phba structure from the dev_id and
+ * assume the HBA is not interrupting.
+ */
+ phba = (struct lpfc_hba *) dev_id;
+
+ if (unlikely(!phba))
+ return IRQ_NONE;
+
+ /*
+ * Stuff needs to be attented to when this function is invoked as an
+ * individual interrupt handler in MSI-X multi-message interrupt mode
+ */
+ if (phba->intr_type == MSIX) {
+ /* Check device state for handling interrupt */
+ if (lpfc_intr_state_check(phba))
+ return IRQ_NONE;
+ /* Need to read HA REG for FCP ring and other ring events */
+ ha_copy = readl(phba->HAregaddr);
+ /* Clear up only attention source related to fast-path */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ /*
+ * If there is deferred error attention, do not check for
+ * any interrupt.
+ */
+ if (unlikely(phba->hba_flag & DEFER_ERATT)) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return IRQ_NONE;
+ }
+ writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
+ phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ } else
+ ha_copy = phba->ha_copy;
/*
- * Process all events on FCP ring. Take the optimized path for
- * FCP IO. Any other IO is slow path and is handled by
- * the worker thread.
+ * Process all events on FCP ring. Take the optimized path for FCP IO.
*/
- status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
+ ha_copy &= ~(phba->work_ha_mask);
+
+ status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
status >>= (4*LPFC_FCP_RING);
if (status & HA_RXMASK)
lpfc_sli_handle_fast_ring_event(phba,
if (phba->cfg_multi_ring_support == 2) {
/*
- * Process all events on extra ring. Take the optimized path
- * for extra ring IO. Any other IO is slow path and is handled
- * by the worker thread.
+ * Process all events on extra ring. Take the optimized path
+ * for extra ring IO.
*/
- status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
+ status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
status >>= (4*LPFC_EXTRA_RING);
if (status & HA_RXMASK) {
lpfc_sli_handle_fast_ring_event(phba,
}
}
return IRQ_HANDLED;
+} /* lpfc_sli_fp_intr_handler */
+
+/**
+ * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
+ * @irq: Interrupt number.
+ * @dev_id: The device context pointer.
+ *
+ * This function is the HBA device-level interrupt handler to device with
+ * SLI-3 interface spec, called from the PCI layer when either MSI or
+ * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
+ * requires driver attention. This function invokes the slow-path interrupt
+ * attention handling function and fast-path interrupt attention handling
+ * function in turn to process the relevant HBA attention events. This
+ * function is called without any lock held. It gets the hbalock to access
+ * and update SLI data structures.
+ *
+ * This function returns IRQ_HANDLED when interrupt is handled, else it
+ * returns IRQ_NONE.
+ **/
+irqreturn_t
+lpfc_sli_intr_handler(int irq, void *dev_id)
+{
+ struct lpfc_hba *phba;
+ irqreturn_t sp_irq_rc, fp_irq_rc;
+ unsigned long status1, status2;
+
+ /*
+ * Get the driver's phba structure from the dev_id and
+ * assume the HBA is not interrupting.
+ */
+ phba = (struct lpfc_hba *) dev_id;
+
+ if (unlikely(!phba))
+ return IRQ_NONE;
+
+ /* Check device state for handling interrupt */
+ if (lpfc_intr_state_check(phba))
+ return IRQ_NONE;
+
+ spin_lock(&phba->hbalock);
+ phba->ha_copy = readl(phba->HAregaddr);
+ if (unlikely(!phba->ha_copy)) {
+ spin_unlock(&phba->hbalock);
+ return IRQ_NONE;
+ } else if (phba->ha_copy & HA_ERATT) {
+ if (phba->hba_flag & HBA_ERATT_HANDLED)
+ /* ERATT polling has handled ERATT */
+ phba->ha_copy &= ~HA_ERATT;
+ else
+ /* Indicate interrupt handler handles ERATT */
+ phba->hba_flag |= HBA_ERATT_HANDLED;
+ }
+
+ /*
+ * If there is deferred error attention, do not check for any interrupt.
+ */
+ if (unlikely(phba->hba_flag & DEFER_ERATT)) {
+ spin_unlock_irq(&phba->hbalock);
+ return IRQ_NONE;
+ }
+
+ /* Clear attention sources except link and error attentions */
+ writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
+ readl(phba->HAregaddr); /* flush */
+ spin_unlock(&phba->hbalock);
+
+ /*
+ * Invokes slow-path host attention interrupt handling as appropriate.
+ */
+
+ /* status of events with mailbox and link attention */
+ status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
+
+ /* status of events with ELS ring */
+ status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
+ status2 >>= (4*LPFC_ELS_RING);
+
+ if (status1 || (status2 & HA_RXMASK))
+ sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
+ else
+ sp_irq_rc = IRQ_NONE;
+
+ /*
+ * Invoke fast-path host attention interrupt handling as appropriate.
+ */
+
+ /* status of events with FCP ring */
+ status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
+ status1 >>= (4*LPFC_FCP_RING);
+
+ /* status of events with extra ring */
+ if (phba->cfg_multi_ring_support == 2) {
+ status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
+ status2 >>= (4*LPFC_EXTRA_RING);
+ } else
+ status2 = 0;
+
+ if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
+ fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
+ else
+ fp_irq_rc = IRQ_NONE;
+
+ /* Return device-level interrupt handling status */
+ return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
+} /* lpfc_sli_intr_handler */
+
+/**
+ * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked by the worker thread to process all the pending
+ * SLI4 FCP abort XRI events.
+ **/
+void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+
+ /* First, declare the fcp xri abort event has been handled */
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
+ spin_unlock_irq(&phba->hbalock);
+ /* Now, handle all the fcp xri abort events */
+ while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
+ /* Get the first event from the head of the event queue */
+ spin_lock_irq(&phba->hbalock);
+ list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
+ cq_event, struct lpfc_cq_event, list);
+ spin_unlock_irq(&phba->hbalock);
+ /* Notify aborted XRI for FCP work queue */
+ lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
+ /* Free the event processed back to the free pool */
+ lpfc_sli4_cq_event_release(phba, cq_event);
+ }
+}
+
+/**
+ * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked by the worker thread to process all the pending
+ * SLI4 els abort xri events.
+ **/
+void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+
+ /* First, declare the els xri abort event has been handled */
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
+ spin_unlock_irq(&phba->hbalock);
+ /* Now, handle all the els xri abort events */
+ while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
+ /* Get the first event from the head of the event queue */
+ spin_lock_irq(&phba->hbalock);
+ list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
+ cq_event, struct lpfc_cq_event, list);
+ spin_unlock_irq(&phba->hbalock);
+ /* Notify aborted XRI for ELS work queue */
+ lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
+ /* Free the event processed back to the free pool */
+ lpfc_sli4_cq_event_release(phba, cq_event);
+ }
+}
-} /* lpfc_intr_handler */
+static void
+lpfc_sli4_iocb_param_transfer(struct lpfc_iocbq *pIocbIn,
+ struct lpfc_iocbq *pIocbOut,
+ struct lpfc_wcqe_complete *wcqe)
+{
+ size_t offset = offsetof(struct lpfc_iocbq, iocb);
+
+ memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
+ sizeof(struct lpfc_iocbq) - offset);
+ memset(&pIocbIn->sli4_info, 0,
+ sizeof(struct lpfc_sli4_rspiocb_info));
+ /* Map WCQE parameters into irspiocb parameters */
+ pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
+ if (pIocbOut->iocb_flag & LPFC_IO_FCP)
+ if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
+ pIocbIn->iocb.un.fcpi.fcpi_parm =
+ pIocbOut->iocb.un.fcpi.fcpi_parm -
+ wcqe->total_data_placed;
+ else
+ pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
+ else
+ pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
+ /* Load in additional WCQE parameters */
+ pIocbIn->sli4_info.hw_status = bf_get(lpfc_wcqe_c_hw_status, wcqe);
+ pIocbIn->sli4_info.bfield = 0;
+ if (bf_get(lpfc_wcqe_c_xb, wcqe))
+ pIocbIn->sli4_info.bfield |= LPFC_XB;
+ if (bf_get(lpfc_wcqe_c_pv, wcqe)) {
+ pIocbIn->sli4_info.bfield |= LPFC_PV;
+ pIocbIn->sli4_info.priority =
+ bf_get(lpfc_wcqe_c_priority, wcqe);
+ }
+}
+
+/**
+ * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
+ * @phba: Pointer to HBA context object.
+ * @cqe: Pointer to mailbox completion queue entry.
+ *
+ * This routine process a mailbox completion queue entry with asynchrous
+ * event.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
+{
+ struct lpfc_cq_event *cq_event;
+ unsigned long iflags;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "0392 Async Event: word0:x%x, word1:x%x, "
+ "word2:x%x, word3:x%x\n", mcqe->word0,
+ mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
+
+ /* Allocate a new internal CQ_EVENT entry */
+ cq_event = lpfc_sli4_cq_event_alloc(phba);
+ if (!cq_event) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0394 Failed to allocate CQ_EVENT entry\n");
+ return false;
+ }
+
+ /* Move the CQE into an asynchronous event entry */
+ memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
+ /* Set the async event flag */
+ phba->hba_flag |= ASYNC_EVENT;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ return true;
+}
+
+/**
+ * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
+ * @phba: Pointer to HBA context object.
+ * @cqe: Pointer to mailbox completion queue entry.
+ *
+ * This routine process a mailbox completion queue entry with mailbox
+ * completion event.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
+{
+ uint32_t mcqe_status;
+ MAILBOX_t *mbox, *pmbox;
+ struct lpfc_mqe *mqe;
+ struct lpfc_vport *vport;
+ struct lpfc_nodelist *ndlp;
+ struct lpfc_dmabuf *mp;
+ unsigned long iflags;
+ LPFC_MBOXQ_t *pmb;
+ bool workposted = false;
+ int rc;
+
+ /* If not a mailbox complete MCQE, out by checking mailbox consume */
+ if (!bf_get(lpfc_trailer_completed, mcqe))
+ goto out_no_mqe_complete;
+
+ /* Get the reference to the active mbox command */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ pmb = phba->sli.mbox_active;
+ if (unlikely(!pmb)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "1832 No pending MBOX command to handle\n");
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ goto out_no_mqe_complete;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ mqe = &pmb->u.mqe;
+ pmbox = (MAILBOX_t *)&pmb->u.mqe;
+ mbox = phba->mbox;
+ vport = pmb->vport;
+
+ /* Reset heartbeat timer */
+ phba->last_completion_time = jiffies;
+ del_timer(&phba->sli.mbox_tmo);
+
+ /* Move mbox data to caller's mailbox region, do endian swapping */
+ if (pmb->mbox_cmpl && mbox)
+ lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
+ /* Set the mailbox status with SLI4 range 0x4000 */
+ mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
+ if (mcqe_status != MB_CQE_STATUS_SUCCESS)
+ bf_set(lpfc_mqe_status, mqe,
+ (LPFC_MBX_ERROR_RANGE | mcqe_status));
+
+ if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
+ pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
+ "MBOX dflt rpi: status:x%x rpi:x%x",
+ mcqe_status,
+ pmbox->un.varWords[0], 0);
+ if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
+ mp = (struct lpfc_dmabuf *)(pmb->context1);
+ ndlp = (struct lpfc_nodelist *)pmb->context2;
+ /* Reg_LOGIN of dflt RPI was successful. Now lets get
+ * RID of the PPI using the same mbox buffer.
+ */
+ lpfc_unreg_login(phba, vport->vpi,
+ pmbox->un.varWords[0], pmb);
+ pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
+ pmb->context1 = mp;
+ pmb->context2 = ndlp;
+ pmb->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ if (rc != MBX_BUSY)
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
+ LOG_SLI, "0385 rc should "
+ "have been MBX_BUSY\n");
+ if (rc != MBX_NOT_FINISHED)
+ goto send_current_mbox;
+ }
+ }
+ spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
+ phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
+ spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
+
+ /* There is mailbox completion work to do */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ __lpfc_mbox_cmpl_put(phba, pmb);
+ phba->work_ha |= HA_MBATT;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ workposted = true;
+
+send_current_mbox:
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ /* Release the mailbox command posting token */
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ /* Setting active mailbox pointer need to be in sync to flag clear */
+ phba->sli.mbox_active = NULL;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ /* Wake up worker thread to post the next pending mailbox command */
+ lpfc_worker_wake_up(phba);
+out_no_mqe_complete:
+ if (bf_get(lpfc_trailer_consumed, mcqe))
+ lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
+ * @phba: Pointer to HBA context object.
+ * @cqe: Pointer to mailbox completion queue entry.
+ *
+ * This routine process a mailbox completion queue entry, it invokes the
+ * proper mailbox complete handling or asynchrous event handling routine
+ * according to the MCQE's async bit.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
+{
+ struct lpfc_mcqe mcqe;
+ bool workposted;
+
+ /* Copy the mailbox MCQE and convert endian order as needed */
+ lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
+
+ /* Invoke the proper event handling routine */
+ if (!bf_get(lpfc_trailer_async, &mcqe))
+ workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
+ else
+ workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
+ * @phba: Pointer to HBA context object.
+ * @wcqe: Pointer to work-queue completion queue entry.
+ *
+ * This routine handles an ELS work-queue completion event.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
+ struct lpfc_wcqe_complete *wcqe)
+{
+ struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
+ struct lpfc_iocbq *cmdiocbq;
+ struct lpfc_iocbq *irspiocbq;
+ unsigned long iflags;
+ bool workposted = false;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ pring->stats.iocb_event++;
+ /* Look up the ELS command IOCB and create pseudo response IOCB */
+ cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
+ bf_get(lpfc_wcqe_c_request_tag, wcqe));
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ if (unlikely(!cmdiocbq)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0386 ELS complete with no corresponding "
+ "cmdiocb: iotag (%d)\n",
+ bf_get(lpfc_wcqe_c_request_tag, wcqe));
+ return workposted;
+ }
+
+ /* Fake the irspiocbq and copy necessary response information */
+ irspiocbq = lpfc_sli_get_iocbq(phba);
+ if (!irspiocbq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0387 Failed to allocate an iocbq\n");
+ return workposted;
+ }
+ lpfc_sli4_iocb_param_transfer(irspiocbq, cmdiocbq, wcqe);
+
+ /* Add the irspiocb to the response IOCB work list */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ list_add_tail(&irspiocbq->list, &phba->sli4_hba.sp_rspiocb_work_queue);
+ /* Indicate ELS ring attention */
+ phba->work_ha |= (HA_R0ATT << (4*LPFC_ELS_RING));
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ workposted = true;
+
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
+ * @phba: Pointer to HBA context object.
+ * @wcqe: Pointer to work-queue completion queue entry.
+ *
+ * This routine handles slow-path WQ entry comsumed event by invoking the
+ * proper WQ release routine to the slow-path WQ.
+ **/
+static void
+lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
+ struct lpfc_wcqe_release *wcqe)
+{
+ /* Check for the slow-path ELS work queue */
+ if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
+ lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
+ bf_get(lpfc_wcqe_r_wqe_index, wcqe));
+ else
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "2579 Slow-path wqe consume event carries "
+ "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
+ bf_get(lpfc_wcqe_r_wqe_index, wcqe),
+ phba->sli4_hba.els_wq->queue_id);
+}
+
+/**
+ * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
+ * @phba: Pointer to HBA context object.
+ * @cq: Pointer to a WQ completion queue.
+ * @wcqe: Pointer to work-queue completion queue entry.
+ *
+ * This routine handles an XRI abort event.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
+ struct lpfc_queue *cq,
+ struct sli4_wcqe_xri_aborted *wcqe)
+{
+ bool workposted = false;
+ struct lpfc_cq_event *cq_event;
+ unsigned long iflags;
+
+ /* Allocate a new internal CQ_EVENT entry */
+ cq_event = lpfc_sli4_cq_event_alloc(phba);
+ if (!cq_event) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0602 Failed to allocate CQ_EVENT entry\n");
+ return false;
+ }
+
+ /* Move the CQE into the proper xri abort event list */
+ memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
+ switch (cq->subtype) {
+ case LPFC_FCP:
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ list_add_tail(&cq_event->list,
+ &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
+ /* Set the fcp xri abort event flag */
+ phba->hba_flag |= FCP_XRI_ABORT_EVENT;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ workposted = true;
+ break;
+ case LPFC_ELS:
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ list_add_tail(&cq_event->list,
+ &phba->sli4_hba.sp_els_xri_aborted_work_queue);
+ /* Set the els xri abort event flag */
+ phba->hba_flag |= ELS_XRI_ABORT_EVENT;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ workposted = true;
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0603 Invalid work queue CQE subtype (x%x)\n",
+ cq->subtype);
+ workposted = false;
+ break;
+ }
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_handle_wcqe - Process a work-queue completion queue entry
+ * @phba: Pointer to HBA context object.
+ * @cq: Pointer to the completion queue.
+ * @wcqe: Pointer to a completion queue entry.
+ *
+ * This routine process a slow-path work-queue completion queue entry.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ struct lpfc_cqe *cqe)
+{
+ struct lpfc_wcqe_complete wcqe;
+ bool workposted = false;
+
+ /* Copy the work queue CQE and convert endian order if needed */
+ lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
+
+ /* Check and process for different type of WCQE and dispatch */
+ switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
+ case CQE_CODE_COMPL_WQE:
+ /* Process the WQ complete event */
+ workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
+ (struct lpfc_wcqe_complete *)&wcqe);
+ break;
+ case CQE_CODE_RELEASE_WQE:
+ /* Process the WQ release event */
+ lpfc_sli4_sp_handle_rel_wcqe(phba,
+ (struct lpfc_wcqe_release *)&wcqe);
+ break;
+ case CQE_CODE_XRI_ABORTED:
+ /* Process the WQ XRI abort event */
+ workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
+ (struct sli4_wcqe_xri_aborted *)&wcqe);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0388 Not a valid WCQE code: x%x\n",
+ bf_get(lpfc_wcqe_c_code, &wcqe));
+ break;
+ }
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
+ * @phba: Pointer to HBA context object.
+ * @rcqe: Pointer to receive-queue completion queue entry.
+ *
+ * This routine process a receive-queue completion queue entry.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
+{
+ struct lpfc_rcqe rcqe;
+ bool workposted = false;
+ struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
+ struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
+ struct hbq_dmabuf *dma_buf;
+ uint32_t status;
+ unsigned long iflags;
+
+ /* Copy the receive queue CQE and convert endian order if needed */
+ lpfc_sli_pcimem_bcopy(cqe, &rcqe, sizeof(struct lpfc_rcqe));
+ lpfc_sli4_rq_release(hrq, drq);
+ if (bf_get(lpfc_rcqe_code, &rcqe) != CQE_CODE_RECEIVE)
+ goto out;
+ if (bf_get(lpfc_rcqe_rq_id, &rcqe) != hrq->queue_id)
+ goto out;
+
+ status = bf_get(lpfc_rcqe_status, &rcqe);
+ switch (status) {
+ case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2537 Receive Frame Truncated!!\n");
+ case FC_STATUS_RQ_SUCCESS:
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
+ if (!dma_buf) {
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ goto out;
+ }
+ memcpy(&dma_buf->rcqe, &rcqe, sizeof(rcqe));
+ /* save off the frame for the word thread to process */
+ list_add_tail(&dma_buf->dbuf.list, &phba->rb_pend_list);
+ /* Frame received */
+ phba->hba_flag |= HBA_RECEIVE_BUFFER;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ workposted = true;
+ break;
+ case FC_STATUS_INSUFF_BUF_NEED_BUF:
+ case FC_STATUS_INSUFF_BUF_FRM_DISC:
+ /* Post more buffers if possible */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ workposted = true;
+ break;
+ }
+out:
+ return workposted;
+
+}
+
+/**
+ * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
+ * @phba: Pointer to HBA context object.
+ * @eqe: Pointer to fast-path event queue entry.
+ *
+ * This routine process a event queue entry from the slow-path event queue.
+ * It will check the MajorCode and MinorCode to determine this is for a
+ * completion event on a completion queue, if not, an error shall be logged
+ * and just return. Otherwise, it will get to the corresponding completion
+ * queue and process all the entries on that completion queue, rearm the
+ * completion queue, and then return.
+ *
+ **/
+static void
+lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
+{
+ struct lpfc_queue *cq = NULL, *childq, *speq;
+ struct lpfc_cqe *cqe;
+ bool workposted = false;
+ int ecount = 0;
+ uint16_t cqid;
+
+ if (bf_get(lpfc_eqe_major_code, eqe) != 0 ||
+ bf_get(lpfc_eqe_minor_code, eqe) != 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0359 Not a valid slow-path completion "
+ "event: majorcode=x%x, minorcode=x%x\n",
+ bf_get(lpfc_eqe_major_code, eqe),
+ bf_get(lpfc_eqe_minor_code, eqe));
+ return;
+ }
+
+ /* Get the reference to the corresponding CQ */
+ cqid = bf_get(lpfc_eqe_resource_id, eqe);
+
+ /* Search for completion queue pointer matching this cqid */
+ speq = phba->sli4_hba.sp_eq;
+ list_for_each_entry(childq, &speq->child_list, list) {
+ if (childq->queue_id == cqid) {
+ cq = childq;
+ break;
+ }
+ }
+ if (unlikely(!cq)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0365 Slow-path CQ identifier (%d) does "
+ "not exist\n", cqid);
+ return;
+ }
+
+ /* Process all the entries to the CQ */
+ switch (cq->type) {
+ case LPFC_MCQ:
+ while ((cqe = lpfc_sli4_cq_get(cq))) {
+ workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
+ if (!(++ecount % LPFC_GET_QE_REL_INT))
+ lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
+ }
+ break;
+ case LPFC_WCQ:
+ while ((cqe = lpfc_sli4_cq_get(cq))) {
+ workposted |= lpfc_sli4_sp_handle_wcqe(phba, cq, cqe);
+ if (!(++ecount % LPFC_GET_QE_REL_INT))
+ lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
+ }
+ break;
+ case LPFC_RCQ:
+ while ((cqe = lpfc_sli4_cq_get(cq))) {
+ workposted |= lpfc_sli4_sp_handle_rcqe(phba, cqe);
+ if (!(++ecount % LPFC_GET_QE_REL_INT))
+ lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
+ }
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0370 Invalid completion queue type (%d)\n",
+ cq->type);
+ return;
+ }
+
+ /* Catch the no cq entry condition, log an error */
+ if (unlikely(ecount == 0))
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0371 No entry from the CQ: identifier "
+ "(x%x), type (%d)\n", cq->queue_id, cq->type);
+
+ /* In any case, flash and re-arm the RCQ */
+ lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
+
+ /* wake up worker thread if there are works to be done */
+ if (workposted)
+ lpfc_worker_wake_up(phba);
+}
+
+/**
+ * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
+ * @eqe: Pointer to fast-path completion queue entry.
+ *
+ * This routine process a fast-path work queue completion entry from fast-path
+ * event queue for FCP command response completion.
+ **/
+static void
+lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
+ struct lpfc_wcqe_complete *wcqe)
+{
+ struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
+ struct lpfc_iocbq *cmdiocbq;
+ struct lpfc_iocbq irspiocbq;
+ unsigned long iflags;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ pring->stats.iocb_event++;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ /* Check for response status */
+ if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
+ /* If resource errors reported from HBA, reduce queue
+ * depth of the SCSI device.
+ */
+ if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
+ IOSTAT_LOCAL_REJECT) &&
+ (wcqe->parameter == IOERR_NO_RESOURCES)) {
+ phba->lpfc_rampdown_queue_depth(phba);
+ }
+ /* Log the error status */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0373 FCP complete error: status=x%x, "
+ "hw_status=x%x, total_data_specified=%d, "
+ "parameter=x%x, word3=x%x\n",
+ bf_get(lpfc_wcqe_c_status, wcqe),
+ bf_get(lpfc_wcqe_c_hw_status, wcqe),
+ wcqe->total_data_placed, wcqe->parameter,
+ wcqe->word3);
+ }
+
+ /* Look up the FCP command IOCB and create pseudo response IOCB */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
+ bf_get(lpfc_wcqe_c_request_tag, wcqe));
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ if (unlikely(!cmdiocbq)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0374 FCP complete with no corresponding "
+ "cmdiocb: iotag (%d)\n",
+ bf_get(lpfc_wcqe_c_request_tag, wcqe));
+ return;
+ }
+ if (unlikely(!cmdiocbq->iocb_cmpl)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0375 FCP cmdiocb not callback function "
+ "iotag: (%d)\n",
+ bf_get(lpfc_wcqe_c_request_tag, wcqe));
+ return;
+ }
+
+ /* Fake the irspiocb and copy necessary response information */
+ lpfc_sli4_iocb_param_transfer(&irspiocbq, cmdiocbq, wcqe);
+
+ /* Pass the cmd_iocb and the rsp state to the upper layer */
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
+}
+
+/**
+ * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
+ * @phba: Pointer to HBA context object.
+ * @cq: Pointer to completion queue.
+ * @wcqe: Pointer to work-queue completion queue entry.
+ *
+ * This routine handles an fast-path WQ entry comsumed event by invoking the
+ * proper WQ release routine to the slow-path WQ.
+ **/
+static void
+lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ struct lpfc_wcqe_release *wcqe)
+{
+ struct lpfc_queue *childwq;
+ bool wqid_matched = false;
+ uint16_t fcp_wqid;
+
+ /* Check for fast-path FCP work queue release */
+ fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
+ list_for_each_entry(childwq, &cq->child_list, list) {
+ if (childwq->queue_id == fcp_wqid) {
+ lpfc_sli4_wq_release(childwq,
+ bf_get(lpfc_wcqe_r_wqe_index, wcqe));
+ wqid_matched = true;
+ break;
+ }
+ }
+ /* Report warning log message if no match found */
+ if (wqid_matched != true)
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "2580 Fast-path wqe consume event carries "
+ "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
+}
+
+/**
+ * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
+ * @cq: Pointer to the completion queue.
+ * @eqe: Pointer to fast-path completion queue entry.
+ *
+ * This routine process a fast-path work queue completion entry from fast-path
+ * event queue for FCP command response completion.
+ **/
+static int
+lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ struct lpfc_cqe *cqe)
+{
+ struct lpfc_wcqe_release wcqe;
+ bool workposted = false;
+
+ /* Copy the work queue CQE and convert endian order if needed */
+ lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
+
+ /* Check and process for different type of WCQE and dispatch */
+ switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
+ case CQE_CODE_COMPL_WQE:
+ /* Process the WQ complete event */
+ lpfc_sli4_fp_handle_fcp_wcqe(phba,
+ (struct lpfc_wcqe_complete *)&wcqe);
+ break;
+ case CQE_CODE_RELEASE_WQE:
+ /* Process the WQ release event */
+ lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
+ (struct lpfc_wcqe_release *)&wcqe);
+ break;
+ case CQE_CODE_XRI_ABORTED:
+ /* Process the WQ XRI abort event */
+ workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
+ (struct sli4_wcqe_xri_aborted *)&wcqe);
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0144 Not a valid WCQE code: x%x\n",
+ bf_get(lpfc_wcqe_c_code, &wcqe));
+ break;
+ }
+ return workposted;
+}
+
+/**
+ * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
+ * @phba: Pointer to HBA context object.
+ * @eqe: Pointer to fast-path event queue entry.
+ *
+ * This routine process a event queue entry from the fast-path event queue.
+ * It will check the MajorCode and MinorCode to determine this is for a
+ * completion event on a completion queue, if not, an error shall be logged
+ * and just return. Otherwise, it will get to the corresponding completion
+ * queue and process all the entries on the completion queue, rearm the
+ * completion queue, and then return.
+ **/
+static void
+lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
+ uint32_t fcp_cqidx)
+{
+ struct lpfc_queue *cq;
+ struct lpfc_cqe *cqe;
+ bool workposted = false;
+ uint16_t cqid;
+ int ecount = 0;
+
+ if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) ||
+ unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0366 Not a valid fast-path completion "
+ "event: majorcode=x%x, minorcode=x%x\n",
+ bf_get(lpfc_eqe_major_code, eqe),
+ bf_get(lpfc_eqe_minor_code, eqe));
+ return;
+ }
+
+ cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
+ if (unlikely(!cq)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0367 Fast-path completion queue does not "
+ "exist\n");
+ return;
+ }
+
+ /* Get the reference to the corresponding CQ */
+ cqid = bf_get(lpfc_eqe_resource_id, eqe);
+ if (unlikely(cqid != cq->queue_id)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0368 Miss-matched fast-path completion "
+ "queue identifier: eqcqid=%d, fcpcqid=%d\n",
+ cqid, cq->queue_id);
+ return;
+ }
+
+ /* Process all the entries to the CQ */
+ while ((cqe = lpfc_sli4_cq_get(cq))) {
+ workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
+ if (!(++ecount % LPFC_GET_QE_REL_INT))
+ lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
+ }
+
+ /* Catch the no cq entry condition */
+ if (unlikely(ecount == 0))
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0369 No entry from fast-path completion "
+ "queue fcpcqid=%d\n", cq->queue_id);
+
+ /* In any case, flash and re-arm the CQ */
+ lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
+
+ /* wake up worker thread if there are works to be done */
+ if (workposted)
+ lpfc_worker_wake_up(phba);
+}
+
+static void
+lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
+{
+ struct lpfc_eqe *eqe;
+
+ /* walk all the EQ entries and drop on the floor */
+ while ((eqe = lpfc_sli4_eq_get(eq)))
+ ;
+
+ /* Clear and re-arm the EQ */
+ lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
+}
+
+/**
+ * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
+ * @irq: Interrupt number.
+ * @dev_id: The device context pointer.
+ *
+ * This function is directly called from the PCI layer as an interrupt
+ * service routine when device with SLI-4 interface spec is enabled with
+ * MSI-X multi-message interrupt mode and there are slow-path events in
+ * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
+ * interrupt mode, this function is called as part of the device-level
+ * interrupt handler. When the PCI slot is in error recovery or the HBA is
+ * undergoing initialization, the interrupt handler will not process the
+ * interrupt. The link attention and ELS ring attention events are handled
+ * by the worker thread. The interrupt handler signals the worker thread
+ * and returns for these events. This function is called without any lock
+ * held. It gets the hbalock to access and update SLI data structures.
+ *
+ * This function returns IRQ_HANDLED when interrupt is handled else it
+ * returns IRQ_NONE.
+ **/
+irqreturn_t
+lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
+{
+ struct lpfc_hba *phba;
+ struct lpfc_queue *speq;
+ struct lpfc_eqe *eqe;
+ unsigned long iflag;
+ int ecount = 0;
+
+ /*
+ * Get the driver's phba structure from the dev_id
+ */
+ phba = (struct lpfc_hba *)dev_id;
+
+ if (unlikely(!phba))
+ return IRQ_NONE;
+
+ /* Get to the EQ struct associated with this vector */
+ speq = phba->sli4_hba.sp_eq;
+
+ /* Check device state for handling interrupt */
+ if (unlikely(lpfc_intr_state_check(phba))) {
+ /* Check again for link_state with lock held */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ if (phba->link_state < LPFC_LINK_DOWN)
+ /* Flush, clear interrupt, and rearm the EQ */
+ lpfc_sli4_eq_flush(phba, speq);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return IRQ_NONE;
+ }
+
+ /*
+ * Process all the event on FCP slow-path EQ
+ */
+ while ((eqe = lpfc_sli4_eq_get(speq))) {
+ lpfc_sli4_sp_handle_eqe(phba, eqe);
+ if (!(++ecount % LPFC_GET_QE_REL_INT))
+ lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
+ }
+
+ /* Always clear and re-arm the slow-path EQ */
+ lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
+
+ /* Catch the no cq entry condition */
+ if (unlikely(ecount == 0)) {
+ if (phba->intr_type == MSIX)
+ /* MSI-X treated interrupt served as no EQ share INT */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0357 MSI-X interrupt with no EQE\n");
+ else
+ /* Non MSI-X treated on interrupt as EQ share INT */
+ return IRQ_NONE;
+ }
+
+ return IRQ_HANDLED;
+} /* lpfc_sli4_sp_intr_handler */
+
+/**
+ * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
+ * @irq: Interrupt number.
+ * @dev_id: The device context pointer.
+ *
+ * This function is directly called from the PCI layer as an interrupt
+ * service routine when device with SLI-4 interface spec is enabled with
+ * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
+ * ring event in the HBA. However, when the device is enabled with either
+ * MSI or Pin-IRQ interrupt mode, this function is called as part of the
+ * device-level interrupt handler. When the PCI slot is in error recovery
+ * or the HBA is undergoing initialization, the interrupt handler will not
+ * process the interrupt. The SCSI FCP fast-path ring event are handled in
+ * the intrrupt context. This function is called without any lock held.
+ * It gets the hbalock to access and update SLI data structures. Note that,
+ * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
+ * equal to that of FCP CQ index.
+ *
+ * This function returns IRQ_HANDLED when interrupt is handled else it
+ * returns IRQ_NONE.
+ **/
+irqreturn_t
+lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
+{
+ struct lpfc_hba *phba;
+ struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
+ struct lpfc_queue *fpeq;
+ struct lpfc_eqe *eqe;
+ unsigned long iflag;
+ int ecount = 0;
+ uint32_t fcp_eqidx;
+
+ /* Get the driver's phba structure from the dev_id */
+ fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
+ phba = fcp_eq_hdl->phba;
+ fcp_eqidx = fcp_eq_hdl->idx;
+
+ if (unlikely(!phba))
+ return IRQ_NONE;
+
+ /* Get to the EQ struct associated with this vector */
+ fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
+
+ /* Check device state for handling interrupt */
+ if (unlikely(lpfc_intr_state_check(phba))) {
+ /* Check again for link_state with lock held */
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ if (phba->link_state < LPFC_LINK_DOWN)
+ /* Flush, clear interrupt, and rearm the EQ */
+ lpfc_sli4_eq_flush(phba, fpeq);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return IRQ_NONE;
+ }
+
+ /*
+ * Process all the event on FCP fast-path EQ
+ */
+ while ((eqe = lpfc_sli4_eq_get(fpeq))) {
+ lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
+ if (!(++ecount % LPFC_GET_QE_REL_INT))
+ lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
+ }
+
+ /* Always clear and re-arm the fast-path EQ */
+ lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
+
+ if (unlikely(ecount == 0)) {
+ if (phba->intr_type == MSIX)
+ /* MSI-X treated interrupt served as no EQ share INT */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "0358 MSI-X interrupt with no EQE\n");
+ else
+ /* Non MSI-X treated on interrupt as EQ share INT */
+ return IRQ_NONE;
+ }
+
+ return IRQ_HANDLED;
+} /* lpfc_sli4_fp_intr_handler */
+
+/**
+ * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
+ * @irq: Interrupt number.
+ * @dev_id: The device context pointer.
+ *
+ * This function is the device-level interrupt handler to device with SLI-4
+ * interface spec, called from the PCI layer when either MSI or Pin-IRQ
+ * interrupt mode is enabled and there is an event in the HBA which requires
+ * driver attention. This function invokes the slow-path interrupt attention
+ * handling function and fast-path interrupt attention handling function in
+ * turn to process the relevant HBA attention events. This function is called
+ * without any lock held. It gets the hbalock to access and update SLI data
+ * structures.
+ *
+ * This function returns IRQ_HANDLED when interrupt is handled, else it
+ * returns IRQ_NONE.
+ **/
+irqreturn_t
+lpfc_sli4_intr_handler(int irq, void *dev_id)
+{
+ struct lpfc_hba *phba;
+ irqreturn_t sp_irq_rc, fp_irq_rc;
+ bool fp_handled = false;
+ uint32_t fcp_eqidx;
+
+ /* Get the driver's phba structure from the dev_id */
+ phba = (struct lpfc_hba *)dev_id;
+
+ if (unlikely(!phba))
+ return IRQ_NONE;
+
+ /*
+ * Invokes slow-path host attention interrupt handling as appropriate.
+ */
+ sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
+
+ /*
+ * Invoke fast-path host attention interrupt handling as appropriate.
+ */
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
+ fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
+ &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
+ if (fp_irq_rc == IRQ_HANDLED)
+ fp_handled |= true;
+ }
+
+ return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
+} /* lpfc_sli4_intr_handler */
+
+/**
+ * lpfc_sli4_queue_free - free a queue structure and associated memory
+ * @queue: The queue structure to free.
+ *
+ * This function frees a queue structure and the DMAable memeory used for
+ * the host resident queue. This function must be called after destroying the
+ * queue on the HBA.
+ **/
+void
+lpfc_sli4_queue_free(struct lpfc_queue *queue)
+{
+ struct lpfc_dmabuf *dmabuf;
+
+ if (!queue)
+ return;
+
+ while (!list_empty(&queue->page_list)) {
+ list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
+ list);
+ dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
+ dmabuf->virt, dmabuf->phys);
+ kfree(dmabuf);
+ }
+ kfree(queue);
+ return;
+}
+
+/**
+ * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
+ * @phba: The HBA that this queue is being created on.
+ * @entry_size: The size of each queue entry for this queue.
+ * @entry count: The number of entries that this queue will handle.
+ *
+ * This function allocates a queue structure and the DMAable memory used for
+ * the host resident queue. This function must be called before creating the
+ * queue on the HBA.
+ **/
+struct lpfc_queue *
+lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
+ uint32_t entry_count)
+{
+ struct lpfc_queue *queue;
+ struct lpfc_dmabuf *dmabuf;
+ int x, total_qe_count;
+ void *dma_pointer;
+
+
+ queue = kzalloc(sizeof(struct lpfc_queue) +
+ (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
+ if (!queue)
+ return NULL;
+ queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
+ INIT_LIST_HEAD(&queue->list);
+ INIT_LIST_HEAD(&queue->page_list);
+ INIT_LIST_HEAD(&queue->child_list);
+ for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!dmabuf)
+ goto out_fail;
+ dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
+ PAGE_SIZE, &dmabuf->phys,
+ GFP_KERNEL);
+ if (!dmabuf->virt) {
+ kfree(dmabuf);
+ goto out_fail;
+ }
+ memset(dmabuf->virt, 0, PAGE_SIZE);
+ dmabuf->buffer_tag = x;
+ list_add_tail(&dmabuf->list, &queue->page_list);
+ /* initialize queue's entry array */
+ dma_pointer = dmabuf->virt;
+ for (; total_qe_count < entry_count &&
+ dma_pointer < (PAGE_SIZE + dmabuf->virt);
+ total_qe_count++, dma_pointer += entry_size) {
+ queue->qe[total_qe_count].address = dma_pointer;
+ }
+ }
+ queue->entry_size = entry_size;
+ queue->entry_count = entry_count;
+ queue->phba = phba;
+
+ return queue;
+out_fail:
+ lpfc_sli4_queue_free(queue);
+ return NULL;
+}
+
+/**
+ * lpfc_eq_create - Create an Event Queue on the HBA
+ * @phba: HBA structure that indicates port to create a queue on.
+ * @eq: The queue structure to use to create the event queue.
+ * @imax: The maximum interrupt per second limit.
+ *
+ * This function creates an event queue, as detailed in @eq, on a port,
+ * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
+ *
+ * The @phba struct is used to send mailbox command to HBA. The @eq struct
+ * is used to get the entry count and entry size that are necessary to
+ * determine the number of pages to allocate and use for this queue. This
+ * function will send the EQ_CREATE mailbox command to the HBA to setup the
+ * event queue. This function is asynchronous and will wait for the mailbox
+ * command to finish before continuing.
+ *
+ * On success this function will return a zero. If unable to allocate enough
+ * memory this function will return ENOMEM. If the queue create mailbox command
+ * fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
+{
+ struct lpfc_mbx_eq_create *eq_create;
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ struct lpfc_dmabuf *dmabuf;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+ uint16_t dmult;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_eq_create) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_EQ_CREATE,
+ length, LPFC_SLI4_MBX_EMBED);
+ eq_create = &mbox->u.mqe.un.eq_create;
+ bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
+ eq->page_count);
+ bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
+ LPFC_EQE_SIZE);
+ bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
+ /* Calculate delay multiper from maximum interrupt per second */
+ dmult = LPFC_DMULT_CONST/imax - 1;
+ bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
+ dmult);
+ switch (eq->entry_count) {
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0360 Unsupported EQ count. (%d)\n",
+ eq->entry_count);
+ if (eq->entry_count < 256)
+ return -EINVAL;
+ /* otherwise default to smallest count (drop through) */
+ case 256:
+ bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
+ LPFC_EQ_CNT_256);
+ break;
+ case 512:
+ bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
+ LPFC_EQ_CNT_512);
+ break;
+ case 1024:
+ bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
+ LPFC_EQ_CNT_1024);
+ break;
+ case 2048:
+ bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
+ LPFC_EQ_CNT_2048);
+ break;
+ case 4096:
+ bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
+ LPFC_EQ_CNT_4096);
+ break;
+ }
+ list_for_each_entry(dmabuf, &eq->page_list, list) {
+ eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+ putPaddrLow(dmabuf->phys);
+ eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+ putPaddrHigh(dmabuf->phys);
+ }
+ mbox->vport = phba->pport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->context1 = NULL;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2500 EQ_CREATE mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ }
+ eq->type = LPFC_EQ;
+ eq->subtype = LPFC_NONE;
+ eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
+ if (eq->queue_id == 0xFFFF)
+ status = -ENXIO;
+ eq->host_index = 0;
+ eq->hba_index = 0;
+
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_cq_create - Create a Completion Queue on the HBA
+ * @phba: HBA structure that indicates port to create a queue on.
+ * @cq: The queue structure to use to create the completion queue.
+ * @eq: The event queue to bind this completion queue to.
+ *
+ * This function creates a completion queue, as detailed in @wq, on a port,
+ * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
+ *
+ * The @phba struct is used to send mailbox command to HBA. The @cq struct
+ * is used to get the entry count and entry size that are necessary to
+ * determine the number of pages to allocate and use for this queue. The @eq
+ * is used to indicate which event queue to bind this completion queue to. This
+ * function will send the CQ_CREATE mailbox command to the HBA to setup the
+ * completion queue. This function is asynchronous and will wait for the mailbox
+ * command to finish before continuing.
+ *
+ * On success this function will return a zero. If unable to allocate enough
+ * memory this function will return ENOMEM. If the queue create mailbox command
+ * fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
+ struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
+{
+ struct lpfc_mbx_cq_create *cq_create;
+ struct lpfc_dmabuf *dmabuf;
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_cq_create) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_CQ_CREATE,
+ length, LPFC_SLI4_MBX_EMBED);
+ cq_create = &mbox->u.mqe.un.cq_create;
+ bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
+ cq->page_count);
+ bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
+ bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
+ bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
+ switch (cq->entry_count) {
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0361 Unsupported CQ count. (%d)\n",
+ cq->entry_count);
+ if (cq->entry_count < 256)
+ return -EINVAL;
+ /* otherwise default to smallest count (drop through) */
+ case 256:
+ bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
+ LPFC_CQ_CNT_256);
+ break;
+ case 512:
+ bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
+ LPFC_CQ_CNT_512);
+ break;
+ case 1024:
+ bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
+ LPFC_CQ_CNT_1024);
+ break;
+ }
+ list_for_each_entry(dmabuf, &cq->page_list, list) {
+ cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+ putPaddrLow(dmabuf->phys);
+ cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+ putPaddrHigh(dmabuf->phys);
+ }
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2501 CQ_CREATE mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ goto out;
+ }
+ cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
+ if (cq->queue_id == 0xFFFF) {
+ status = -ENXIO;
+ goto out;
+ }
+ /* link the cq onto the parent eq child list */
+ list_add_tail(&cq->list, &eq->child_list);
+ /* Set up completion queue's type and subtype */
+ cq->type = type;
+ cq->subtype = subtype;
+ cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
+ cq->host_index = 0;
+ cq->hba_index = 0;
+
+out:
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_mq_create - Create a mailbox Queue on the HBA
+ * @phba: HBA structure that indicates port to create a queue on.
+ * @mq: The queue structure to use to create the mailbox queue.
+ *
+ * This function creates a mailbox queue, as detailed in @mq, on a port,
+ * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
+ *
+ * The @phba struct is used to send mailbox command to HBA. The @cq struct
+ * is used to get the entry count and entry size that are necessary to
+ * determine the number of pages to allocate and use for this queue. This
+ * function will send the MQ_CREATE mailbox command to the HBA to setup the
+ * mailbox queue. This function is asynchronous and will wait for the mailbox
+ * command to finish before continuing.
+ *
+ * On success this function will return a zero. If unable to allocate enough
+ * memory this function will return ENOMEM. If the queue create mailbox command
+ * fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
+ struct lpfc_queue *cq, uint32_t subtype)
+{
+ struct lpfc_mbx_mq_create *mq_create;
+ struct lpfc_dmabuf *dmabuf;
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_mq_create) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_MQ_CREATE,
+ length, LPFC_SLI4_MBX_EMBED);
+ mq_create = &mbox->u.mqe.un.mq_create;
+ bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
+ mq->page_count);
+ bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
+ cq->queue_id);
+ bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
+ switch (mq->entry_count) {
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0362 Unsupported MQ count. (%d)\n",
+ mq->entry_count);
+ if (mq->entry_count < 16)
+ return -EINVAL;
+ /* otherwise default to smallest count (drop through) */
+ case 16:
+ bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+ LPFC_MQ_CNT_16);
+ break;
+ case 32:
+ bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+ LPFC_MQ_CNT_32);
+ break;
+ case 64:
+ bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+ LPFC_MQ_CNT_64);
+ break;
+ case 128:
+ bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+ LPFC_MQ_CNT_128);
+ break;
+ }
+ list_for_each_entry(dmabuf, &mq->page_list, list) {
+ mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+ putPaddrLow(dmabuf->phys);
+ mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+ putPaddrHigh(dmabuf->phys);
+ }
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2502 MQ_CREATE mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ goto out;
+ }
+ mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
+ if (mq->queue_id == 0xFFFF) {
+ status = -ENXIO;
+ goto out;
+ }
+ mq->type = LPFC_MQ;
+ mq->subtype = subtype;
+ mq->host_index = 0;
+ mq->hba_index = 0;
+
+ /* link the mq onto the parent cq child list */
+ list_add_tail(&mq->list, &cq->child_list);
+out:
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_wq_create - Create a Work Queue on the HBA
+ * @phba: HBA structure that indicates port to create a queue on.
+ * @wq: The queue structure to use to create the work queue.
+ * @cq: The completion queue to bind this work queue to.
+ * @subtype: The subtype of the work queue indicating its functionality.
+ *
+ * This function creates a work queue, as detailed in @wq, on a port, described
+ * by @phba by sending a WQ_CREATE mailbox command to the HBA.
+ *
+ * The @phba struct is used to send mailbox command to HBA. The @wq struct
+ * is used to get the entry count and entry size that are necessary to
+ * determine the number of pages to allocate and use for this queue. The @cq
+ * is used to indicate which completion queue to bind this work queue to. This
+ * function will send the WQ_CREATE mailbox command to the HBA to setup the
+ * work queue. This function is asynchronous and will wait for the mailbox
+ * command to finish before continuing.
+ *
+ * On success this function will return a zero. If unable to allocate enough
+ * memory this function will return ENOMEM. If the queue create mailbox command
+ * fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
+ struct lpfc_queue *cq, uint32_t subtype)
+{
+ struct lpfc_mbx_wq_create *wq_create;
+ struct lpfc_dmabuf *dmabuf;
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_wq_create) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
+ length, LPFC_SLI4_MBX_EMBED);
+ wq_create = &mbox->u.mqe.un.wq_create;
+ bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
+ wq->page_count);
+ bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
+ cq->queue_id);
+ list_for_each_entry(dmabuf, &wq->page_list, list) {
+ wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+ putPaddrLow(dmabuf->phys);
+ wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+ putPaddrHigh(dmabuf->phys);
+ }
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2503 WQ_CREATE mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ goto out;
+ }
+ wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
+ if (wq->queue_id == 0xFFFF) {
+ status = -ENXIO;
+ goto out;
+ }
+ wq->type = LPFC_WQ;
+ wq->subtype = subtype;
+ wq->host_index = 0;
+ wq->hba_index = 0;
+
+ /* link the wq onto the parent cq child list */
+ list_add_tail(&wq->list, &cq->child_list);
+out:
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_rq_create - Create a Receive Queue on the HBA
+ * @phba: HBA structure that indicates port to create a queue on.
+ * @hrq: The queue structure to use to create the header receive queue.
+ * @drq: The queue structure to use to create the data receive queue.
+ * @cq: The completion queue to bind this work queue to.
+ *
+ * This function creates a receive buffer queue pair , as detailed in @hrq and
+ * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
+ * to the HBA.
+ *
+ * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
+ * struct is used to get the entry count that is necessary to determine the
+ * number of pages to use for this queue. The @cq is used to indicate which
+ * completion queue to bind received buffers that are posted to these queues to.
+ * This function will send the RQ_CREATE mailbox command to the HBA to setup the
+ * receive queue pair. This function is asynchronous and will wait for the
+ * mailbox command to finish before continuing.
+ *
+ * On success this function will return a zero. If unable to allocate enough
+ * memory this function will return ENOMEM. If the queue create mailbox command
+ * fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
+ struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
+{
+ struct lpfc_mbx_rq_create *rq_create;
+ struct lpfc_dmabuf *dmabuf;
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (hrq->entry_count != drq->entry_count)
+ return -EINVAL;
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_rq_create) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
+ length, LPFC_SLI4_MBX_EMBED);
+ rq_create = &mbox->u.mqe.un.rq_create;
+ switch (hrq->entry_count) {
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2535 Unsupported RQ count. (%d)\n",
+ hrq->entry_count);
+ if (hrq->entry_count < 512)
+ return -EINVAL;
+ /* otherwise default to smallest count (drop through) */
+ case 512:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_512);
+ break;
+ case 1024:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_1024);
+ break;
+ case 2048:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_2048);
+ break;
+ case 4096:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_4096);
+ break;
+ }
+ bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
+ cq->queue_id);
+ bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
+ hrq->page_count);
+ bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
+ LPFC_HDR_BUF_SIZE);
+ list_for_each_entry(dmabuf, &hrq->page_list, list) {
+ rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+ putPaddrLow(dmabuf->phys);
+ rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+ putPaddrHigh(dmabuf->phys);
+ }
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2504 RQ_CREATE mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ goto out;
+ }
+ hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
+ if (hrq->queue_id == 0xFFFF) {
+ status = -ENXIO;
+ goto out;
+ }
+ hrq->type = LPFC_HRQ;
+ hrq->subtype = subtype;
+ hrq->host_index = 0;
+ hrq->hba_index = 0;
+
+ /* now create the data queue */
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
+ length, LPFC_SLI4_MBX_EMBED);
+ switch (drq->entry_count) {
+ default:
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2536 Unsupported RQ count. (%d)\n",
+ drq->entry_count);
+ if (drq->entry_count < 512)
+ return -EINVAL;
+ /* otherwise default to smallest count (drop through) */
+ case 512:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_512);
+ break;
+ case 1024:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_1024);
+ break;
+ case 2048:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_2048);
+ break;
+ case 4096:
+ bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
+ LPFC_RQ_RING_SIZE_4096);
+ break;
+ }
+ bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
+ cq->queue_id);
+ bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
+ drq->page_count);
+ bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
+ LPFC_DATA_BUF_SIZE);
+ list_for_each_entry(dmabuf, &drq->page_list, list) {
+ rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+ putPaddrLow(dmabuf->phys);
+ rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+ putPaddrHigh(dmabuf->phys);
+ }
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ status = -ENXIO;
+ goto out;
+ }
+ drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
+ if (drq->queue_id == 0xFFFF) {
+ status = -ENXIO;
+ goto out;
+ }
+ drq->type = LPFC_DRQ;
+ drq->subtype = subtype;
+ drq->host_index = 0;
+ drq->hba_index = 0;
+
+ /* link the header and data RQs onto the parent cq child list */
+ list_add_tail(&hrq->list, &cq->child_list);
+ list_add_tail(&drq->list, &cq->child_list);
+
+out:
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_eq_destroy - Destroy an event Queue on the HBA
+ * @eq: The queue structure associated with the queue to destroy.
+ *
+ * This function destroys a queue, as detailed in @eq by sending an mailbox
+ * command, specific to the type of queue, to the HBA.
+ *
+ * The @eq struct is used to get the queue ID of the queue to destroy.
+ *
+ * On success this function will return a zero. If the queue destroy mailbox
+ * command fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (!eq)
+ return -ENODEV;
+ mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_eq_destroy) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_EQ_DESTROY,
+ length, LPFC_SLI4_MBX_EMBED);
+ bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
+ eq->queue_id);
+ mbox->vport = eq->phba->pport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+
+ rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2505 EQ_DESTROY mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ }
+
+ /* Remove eq from any list */
+ list_del_init(&eq->list);
+ mempool_free(mbox, eq->phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
+ * @cq: The queue structure associated with the queue to destroy.
+ *
+ * This function destroys a queue, as detailed in @cq by sending an mailbox
+ * command, specific to the type of queue, to the HBA.
+ *
+ * The @cq struct is used to get the queue ID of the queue to destroy.
+ *
+ * On success this function will return a zero. If the queue destroy mailbox
+ * command fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (!cq)
+ return -ENODEV;
+ mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_cq_destroy) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_CQ_DESTROY,
+ length, LPFC_SLI4_MBX_EMBED);
+ bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
+ cq->queue_id);
+ mbox->vport = cq->phba->pport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.wq_create.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2506 CQ_DESTROY mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ }
+ /* Remove cq from any list */
+ list_del_init(&cq->list);
+ mempool_free(mbox, cq->phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
+ * @qm: The queue structure associated with the queue to destroy.
+ *
+ * This function destroys a queue, as detailed in @mq by sending an mailbox
+ * command, specific to the type of queue, to the HBA.
+ *
+ * The @mq struct is used to get the queue ID of the queue to destroy.
+ *
+ * On success this function will return a zero. If the queue destroy mailbox
+ * command fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (!mq)
+ return -ENODEV;
+ mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_mq_destroy) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_MQ_DESTROY,
+ length, LPFC_SLI4_MBX_EMBED);
+ bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
+ mq->queue_id);
+ mbox->vport = mq->phba->pport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2507 MQ_DESTROY mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ }
+ /* Remove mq from any list */
+ list_del_init(&mq->list);
+ mempool_free(mbox, mq->phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_wq_destroy - Destroy a Work Queue on the HBA
+ * @wq: The queue structure associated with the queue to destroy.
+ *
+ * This function destroys a queue, as detailed in @wq by sending an mailbox
+ * command, specific to the type of queue, to the HBA.
+ *
+ * The @wq struct is used to get the queue ID of the queue to destroy.
+ *
+ * On success this function will return a zero. If the queue destroy mailbox
+ * command fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (!wq)
+ return -ENODEV;
+ mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_wq_destroy) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
+ length, LPFC_SLI4_MBX_EMBED);
+ bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
+ wq->queue_id);
+ mbox->vport = wq->phba->pport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2508 WQ_DESTROY mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ }
+ /* Remove wq from any list */
+ list_del_init(&wq->list);
+ mempool_free(mbox, wq->phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
+ * @rq: The queue structure associated with the queue to destroy.
+ *
+ * This function destroys a queue, as detailed in @rq by sending an mailbox
+ * command, specific to the type of queue, to the HBA.
+ *
+ * The @rq struct is used to get the queue ID of the queue to destroy.
+ *
+ * On success this function will return a zero. If the queue destroy mailbox
+ * command fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
+ struct lpfc_queue *drq)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc, length, status = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (!hrq || !drq)
+ return -ENODEV;
+ mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+ length = (sizeof(struct lpfc_mbx_rq_destroy) -
+ sizeof(struct mbox_header));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
+ length, LPFC_SLI4_MBX_EMBED);
+ bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
+ hrq->queue_id);
+ mbox->vport = hrq->phba->pport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2509 RQ_DESTROY mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, hrq->phba->mbox_mem_pool);
+ return -ENXIO;
+ }
+ bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
+ drq->queue_id);
+ rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2510 RQ_DESTROY mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ status = -ENXIO;
+ }
+ list_del_init(&hrq->list);
+ list_del_init(&drq->list);
+ mempool_free(mbox, hrq->phba->mbox_mem_pool);
+ return status;
+}
+
+/**
+ * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
+ * @phba: The virtual port for which this call being executed.
+ * @pdma_phys_addr0: Physical address of the 1st SGL page.
+ * @pdma_phys_addr1: Physical address of the 2nd SGL page.
+ * @xritag: the xritag that ties this io to the SGL pages.
+ *
+ * This routine will post the sgl pages for the IO that has the xritag
+ * that is in the iocbq structure. The xritag is assigned during iocbq
+ * creation and persists for as long as the driver is loaded.
+ * if the caller has fewer than 256 scatter gather segments to map then
+ * pdma_phys_addr1 should be 0.
+ * If the caller needs to map more than 256 scatter gather segment then
+ * pdma_phys_addr1 should be a valid physical address.
+ * physical address for SGLs must be 64 byte aligned.
+ * If you are going to map 2 SGL's then the first one must have 256 entries
+ * the second sgl can have between 1 and 256 entries.
+ *
+ * Return codes:
+ * 0 - Success
+ * -ENXIO, -ENOMEM - Failure
+ **/
+int
+lpfc_sli4_post_sgl(struct lpfc_hba *phba,
+ dma_addr_t pdma_phys_addr0,
+ dma_addr_t pdma_phys_addr1,
+ uint16_t xritag)
+{
+ struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (xritag == NO_XRI) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "0364 Invalid param:\n");
+ return -EINVAL;
+ }
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
+ sizeof(struct lpfc_mbx_post_sgl_pages) -
+ sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
+
+ post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
+ &mbox->u.mqe.un.post_sgl_pages;
+ bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
+ bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
+
+ post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
+ cpu_to_le32(putPaddrLow(pdma_phys_addr0));
+ post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
+ cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
+
+ post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
+ cpu_to_le32(putPaddrLow(pdma_phys_addr1));
+ post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
+ cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ else
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, phba->mbox_mem_pool);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2511 POST_SGL mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ return 0;
+}
+/**
+ * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
+ * @phba: The virtual port for which this call being executed.
+ *
+ * This routine will remove all of the sgl pages registered with the hba.
+ *
+ * Return codes:
+ * 0 - Success
+ * -ENXIO, -ENOMEM - Failure
+ **/
+int
+lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return -ENOMEM;
+
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
+ LPFC_SLI4_MBX_EMBED);
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ else
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, phba->mbox_mem_pool);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli4_next_xritag - Get an xritag for the io
+ * @phba: Pointer to HBA context object.
+ *
+ * This function gets an xritag for the iocb. If there is no unused xritag
+ * it will return 0xffff.
+ * The function returns the allocated xritag if successful, else returns zero.
+ * Zero is not a valid xritag.
+ * The caller is not required to hold any lock.
+ **/
+uint16_t
+lpfc_sli4_next_xritag(struct lpfc_hba *phba)
+{
+ uint16_t xritag;
+
+ spin_lock_irq(&phba->hbalock);
+ xritag = phba->sli4_hba.next_xri;
+ if ((xritag != (uint16_t) -1) && xritag <
+ (phba->sli4_hba.max_cfg_param.max_xri
+ + phba->sli4_hba.max_cfg_param.xri_base)) {
+ phba->sli4_hba.next_xri++;
+ phba->sli4_hba.max_cfg_param.xri_used++;
+ spin_unlock_irq(&phba->hbalock);
+ return xritag;
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2004 Failed to allocate XRI.last XRITAG is %d"
+ " Max XRI is %d, Used XRI is %d\n",
+ phba->sli4_hba.next_xri,
+ phba->sli4_hba.max_cfg_param.max_xri,
+ phba->sli4_hba.max_cfg_param.xri_used);
+ return -1;
+}
+
+/**
+ * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to post a block of driver's sgl pages to the
+ * HBA using non-embedded mailbox command. No Lock is held. This routine
+ * is only called when the driver is loading and after all IO has been
+ * stopped.
+ **/
+int
+lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
+{
+ struct lpfc_sglq *sglq_entry;
+ struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
+ struct sgl_page_pairs *sgl_pg_pairs;
+ void *viraddr;
+ LPFC_MBOXQ_t *mbox;
+ uint32_t reqlen, alloclen, pg_pairs;
+ uint32_t mbox_tmo;
+ uint16_t xritag_start = 0;
+ int els_xri_cnt, rc = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ /* The number of sgls to be posted */
+ els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
+
+ reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
+ sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
+ if (reqlen > PAGE_SIZE) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2559 Block sgl registration required DMA "
+ "size (%d) great than a page\n", reqlen);
+ return -ENOMEM;
+ }
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2560 Failed to allocate mbox cmd memory\n");
+ return -ENOMEM;
+ }
+
+ /* Allocate DMA memory and set up the non-embedded mailbox command */
+ alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
+ LPFC_SLI4_MBX_NEMBED);
+
+ if (alloclen < reqlen) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0285 Allocated DMA memory size (%d) is "
+ "less than the requested DMA memory "
+ "size (%d)\n", alloclen, reqlen);
+ lpfc_sli4_mbox_cmd_free(phba, mbox);
+ return -ENOMEM;
+ }
+
+ /* Get the first SGE entry from the non-embedded DMA memory */
+ if (unlikely(!mbox->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2525 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ lpfc_sli4_mbox_cmd_free(phba, mbox);
+ return -ENOMEM;
+ }
+ viraddr = mbox->sge_array->addr[0];
+
+ /* Set up the SGL pages in the non-embedded DMA pages */
+ sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
+ sgl_pg_pairs = &sgl->sgl_pg_pairs;
+
+ for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
+ sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
+ /* Set up the sge entry */
+ sgl_pg_pairs->sgl_pg0_addr_lo =
+ cpu_to_le32(putPaddrLow(sglq_entry->phys));
+ sgl_pg_pairs->sgl_pg0_addr_hi =
+ cpu_to_le32(putPaddrHigh(sglq_entry->phys));
+ sgl_pg_pairs->sgl_pg1_addr_lo =
+ cpu_to_le32(putPaddrLow(0));
+ sgl_pg_pairs->sgl_pg1_addr_hi =
+ cpu_to_le32(putPaddrHigh(0));
+ /* Keep the first xritag on the list */
+ if (pg_pairs == 0)
+ xritag_start = sglq_entry->sli4_xritag;
+ sgl_pg_pairs++;
+ }
+ bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
+ pg_pairs = (pg_pairs > 0) ? (pg_pairs - 1) : pg_pairs;
+ bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
+ /* Perform endian conversion if necessary */
+ sgl->word0 = cpu_to_le32(sgl->word0);
+
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ else {
+ mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
+ }
+ shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ lpfc_sli4_mbox_cmd_free(phba, mbox);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2513 POST_SGL_BLOCK mailbox command failed "
+ "status x%x add_status x%x mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
+ * @phba: pointer to lpfc hba data structure.
+ * @sblist: pointer to scsi buffer list.
+ * @count: number of scsi buffers on the list.
+ *
+ * This routine is invoked to post a block of @count scsi sgl pages from a
+ * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
+ * No Lock is held.
+ *
+ **/
+int
+lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
+ int cnt)
+{
+ struct lpfc_scsi_buf *psb;
+ struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
+ struct sgl_page_pairs *sgl_pg_pairs;
+ void *viraddr;
+ LPFC_MBOXQ_t *mbox;
+ uint32_t reqlen, alloclen, pg_pairs;
+ uint32_t mbox_tmo;
+ uint16_t xritag_start = 0;
+ int rc = 0;
+ uint32_t shdr_status, shdr_add_status;
+ dma_addr_t pdma_phys_bpl1;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ /* Calculate the requested length of the dma memory */
+ reqlen = cnt * sizeof(struct sgl_page_pairs) +
+ sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
+ if (reqlen > PAGE_SIZE) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0217 Block sgl registration required DMA "
+ "size (%d) great than a page\n", reqlen);
+ return -ENOMEM;
+ }
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0283 Failed to allocate mbox cmd memory\n");
+ return -ENOMEM;
+ }
+
+ /* Allocate DMA memory and set up the non-embedded mailbox command */
+ alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
+ LPFC_SLI4_MBX_NEMBED);
+
+ if (alloclen < reqlen) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2561 Allocated DMA memory size (%d) is "
+ "less than the requested DMA memory "
+ "size (%d)\n", alloclen, reqlen);
+ lpfc_sli4_mbox_cmd_free(phba, mbox);
+ return -ENOMEM;
+ }
+
+ /* Get the first SGE entry from the non-embedded DMA memory */
+ if (unlikely(!mbox->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2565 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ lpfc_sli4_mbox_cmd_free(phba, mbox);
+ return -ENOMEM;
+ }
+ viraddr = mbox->sge_array->addr[0];
+
+ /* Set up the SGL pages in the non-embedded DMA pages */
+ sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
+ sgl_pg_pairs = &sgl->sgl_pg_pairs;
+
+ pg_pairs = 0;
+ list_for_each_entry(psb, sblist, list) {
+ /* Set up the sge entry */
+ sgl_pg_pairs->sgl_pg0_addr_lo =
+ cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
+ sgl_pg_pairs->sgl_pg0_addr_hi =
+ cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
+ if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
+ pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
+ else
+ pdma_phys_bpl1 = 0;
+ sgl_pg_pairs->sgl_pg1_addr_lo =
+ cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
+ sgl_pg_pairs->sgl_pg1_addr_hi =
+ cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
+ /* Keep the first xritag on the list */
+ if (pg_pairs == 0)
+ xritag_start = psb->cur_iocbq.sli4_xritag;
+ sgl_pg_pairs++;
+ pg_pairs++;
+ }
+ bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
+ bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
+ /* Perform endian conversion if necessary */
+ sgl->word0 = cpu_to_le32(sgl->word0);
+
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ else {
+ mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
+ }
+ shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ lpfc_sli4_mbox_cmd_free(phba, mbox);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2564 POST_SGL_BLOCK mailbox command failed "
+ "status x%x add_status x%x mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
+ * @phba: pointer to lpfc_hba struct that the frame was received on
+ * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
+ *
+ * This function checks the fields in the @fc_hdr to see if the FC frame is a
+ * valid type of frame that the LPFC driver will handle. This function will
+ * return a zero if the frame is a valid frame or a non zero value when the
+ * frame does not pass the check.
+ **/
+static int
+lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
+{
+ char *rctl_names[] = FC_RCTL_NAMES_INIT;
+ char *type_names[] = FC_TYPE_NAMES_INIT;
+ struct fc_vft_header *fc_vft_hdr;
+
+ switch (fc_hdr->fh_r_ctl) {
+ case FC_RCTL_DD_UNCAT: /* uncategorized information */
+ case FC_RCTL_DD_SOL_DATA: /* solicited data */
+ case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
+ case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
+ case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
+ case FC_RCTL_DD_DATA_DESC: /* data descriptor */
+ case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
+ case FC_RCTL_DD_CMD_STATUS: /* command status */
+ case FC_RCTL_ELS_REQ: /* extended link services request */
+ case FC_RCTL_ELS_REP: /* extended link services reply */
+ case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
+ case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
+ case FC_RCTL_BA_NOP: /* basic link service NOP */
+ case FC_RCTL_BA_ABTS: /* basic link service abort */
+ case FC_RCTL_BA_RMC: /* remove connection */
+ case FC_RCTL_BA_ACC: /* basic accept */
+ case FC_RCTL_BA_RJT: /* basic reject */
+ case FC_RCTL_BA_PRMT:
+ case FC_RCTL_ACK_1: /* acknowledge_1 */
+ case FC_RCTL_ACK_0: /* acknowledge_0 */
+ case FC_RCTL_P_RJT: /* port reject */
+ case FC_RCTL_F_RJT: /* fabric reject */
+ case FC_RCTL_P_BSY: /* port busy */
+ case FC_RCTL_F_BSY: /* fabric busy to data frame */
+ case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
+ case FC_RCTL_LCR: /* link credit reset */
+ case FC_RCTL_END: /* end */
+ break;
+ case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
+ fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
+ fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
+ return lpfc_fc_frame_check(phba, fc_hdr);
+ default:
+ goto drop;
+ }
+ switch (fc_hdr->fh_type) {
+ case FC_TYPE_BLS:
+ case FC_TYPE_ELS:
+ case FC_TYPE_FCP:
+ case FC_TYPE_CT:
+ break;
+ case FC_TYPE_IP:
+ case FC_TYPE_ILS:
+ default:
+ goto drop;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
+ "2538 Received frame rctl:%s type:%s\n",
+ rctl_names[fc_hdr->fh_r_ctl],
+ type_names[fc_hdr->fh_type]);
+ return 0;
+drop:
+ lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
+ "2539 Dropped frame rctl:%s type:%s\n",
+ rctl_names[fc_hdr->fh_r_ctl],
+ type_names[fc_hdr->fh_type]);
+ return 1;
+}
+
+/**
+ * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
+ * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
+ *
+ * This function processes the FC header to retrieve the VFI from the VF
+ * header, if one exists. This function will return the VFI if one exists
+ * or 0 if no VSAN Header exists.
+ **/
+static uint32_t
+lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
+{
+ struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
+
+ if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
+ return 0;
+ return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
+}
+
+/**
+ * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
+ * @phba: Pointer to the HBA structure to search for the vport on
+ * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
+ * @fcfi: The FC Fabric ID that the frame came from
+ *
+ * This function searches the @phba for a vport that matches the content of the
+ * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
+ * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
+ * returns the matching vport pointer or NULL if unable to match frame to a
+ * vport.
+ **/
+static struct lpfc_vport *
+lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
+ uint16_t fcfi)
+{
+ struct lpfc_vport **vports;
+ struct lpfc_vport *vport = NULL;
+ int i;
+ uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
+ fc_hdr->fh_d_id[1] << 8 |
+ fc_hdr->fh_d_id[2]);
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+ if (phba->fcf.fcfi == fcfi &&
+ vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
+ vports[i]->fc_myDID == did) {
+ vport = vports[i];
+ break;
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ return vport;
+}
+
+/**
+ * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
+ * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
+ *
+ * This function searches through the existing incomplete sequences that have
+ * been sent to this @vport. If the frame matches one of the incomplete
+ * sequences then the dbuf in the @dmabuf is added to the list of frames that
+ * make up that sequence. If no sequence is found that matches this frame then
+ * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
+ * This function returns a pointer to the first dmabuf in the sequence list that
+ * the frame was linked to.
+ **/
+static struct hbq_dmabuf *
+lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
+{
+ struct fc_frame_header *new_hdr;
+ struct fc_frame_header *temp_hdr;
+ struct lpfc_dmabuf *d_buf;
+ struct lpfc_dmabuf *h_buf;
+ struct hbq_dmabuf *seq_dmabuf = NULL;
+ struct hbq_dmabuf *temp_dmabuf = NULL;
+
+ new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
+ /* Use the hdr_buf to find the sequence that this frame belongs to */
+ list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
+ temp_hdr = (struct fc_frame_header *)h_buf->virt;
+ if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
+ (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
+ (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
+ continue;
+ /* found a pending sequence that matches this frame */
+ seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
+ break;
+ }
+ if (!seq_dmabuf) {
+ /*
+ * This indicates first frame received for this sequence.
+ * Queue the buffer on the vport's rcv_buffer_list.
+ */
+ list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
+ return dmabuf;
+ }
+ temp_hdr = seq_dmabuf->hbuf.virt;
+ if (new_hdr->fh_seq_cnt < temp_hdr->fh_seq_cnt) {
+ list_add(&seq_dmabuf->dbuf.list, &dmabuf->dbuf.list);
+ return dmabuf;
+ }
+ /* find the correct place in the sequence to insert this frame */
+ list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
+ temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
+ temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
+ /*
+ * If the frame's sequence count is greater than the frame on
+ * the list then insert the frame right after this frame
+ */
+ if (new_hdr->fh_seq_cnt > temp_hdr->fh_seq_cnt) {
+ list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
+ return seq_dmabuf;
+ }
+ }
+ return NULL;
+}
+
+/**
+ * lpfc_seq_complete - Indicates if a sequence is complete
+ * @dmabuf: pointer to a dmabuf that describes the FC sequence
+ *
+ * This function checks the sequence, starting with the frame described by
+ * @dmabuf, to see if all the frames associated with this sequence are present.
+ * the frames associated with this sequence are linked to the @dmabuf using the
+ * dbuf list. This function looks for two major things. 1) That the first frame
+ * has a sequence count of zero. 2) There is a frame with last frame of sequence
+ * set. 3) That there are no holes in the sequence count. The function will
+ * return 1 when the sequence is complete, otherwise it will return 0.
+ **/
+static int
+lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
+{
+ struct fc_frame_header *hdr;
+ struct lpfc_dmabuf *d_buf;
+ struct hbq_dmabuf *seq_dmabuf;
+ uint32_t fctl;
+ int seq_count = 0;
+
+ hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
+ /* make sure first fame of sequence has a sequence count of zero */
+ if (hdr->fh_seq_cnt != seq_count)
+ return 0;
+ fctl = (hdr->fh_f_ctl[0] << 16 |
+ hdr->fh_f_ctl[1] << 8 |
+ hdr->fh_f_ctl[2]);
+ /* If last frame of sequence we can return success. */
+ if (fctl & FC_FC_END_SEQ)
+ return 1;
+ list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
+ seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
+ hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
+ /* If there is a hole in the sequence count then fail. */
+ if (++seq_count != hdr->fh_seq_cnt)
+ return 0;
+ fctl = (hdr->fh_f_ctl[0] << 16 |
+ hdr->fh_f_ctl[1] << 8 |
+ hdr->fh_f_ctl[2]);
+ /* If last frame of sequence we can return success. */
+ if (fctl & FC_FC_END_SEQ)
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * lpfc_prep_seq - Prep sequence for ULP processing
+ * @vport: Pointer to the vport on which this sequence was received
+ * @dmabuf: pointer to a dmabuf that describes the FC sequence
+ *
+ * This function takes a sequence, described by a list of frames, and creates
+ * a list of iocbq structures to describe the sequence. This iocbq list will be
+ * used to issue to the generic unsolicited sequence handler. This routine
+ * returns a pointer to the first iocbq in the list. If the function is unable
+ * to allocate an iocbq then it throw out the received frames that were not
+ * able to be described and return a pointer to the first iocbq. If unable to
+ * allocate any iocbqs (including the first) this function will return NULL.
+ **/
+static struct lpfc_iocbq *
+lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
+{
+ struct lpfc_dmabuf *d_buf, *n_buf;
+ struct lpfc_iocbq *first_iocbq, *iocbq;
+ struct fc_frame_header *fc_hdr;
+ uint32_t sid;
+
+ fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
+ /* remove from receive buffer list */
+ list_del_init(&seq_dmabuf->hbuf.list);
+ /* get the Remote Port's SID */
+ sid = (fc_hdr->fh_s_id[0] << 16 |
+ fc_hdr->fh_s_id[1] << 8 |
+ fc_hdr->fh_s_id[2]);
+ /* Get an iocbq struct to fill in. */
+ first_iocbq = lpfc_sli_get_iocbq(vport->phba);
+ if (first_iocbq) {
+ /* Initialize the first IOCB. */
+ first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
+ first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
+ first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
+ first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
+ first_iocbq->iocb.unsli3.rcvsli3.vpi =
+ vport->vpi + vport->phba->vpi_base;
+ /* put the first buffer into the first IOCBq */
+ first_iocbq->context2 = &seq_dmabuf->dbuf;
+ first_iocbq->context3 = NULL;
+ first_iocbq->iocb.ulpBdeCount = 1;
+ first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
+ LPFC_DATA_BUF_SIZE;
+ first_iocbq->iocb.un.rcvels.remoteID = sid;
+ first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
+ bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
+ }
+ iocbq = first_iocbq;
+ /*
+ * Each IOCBq can have two Buffers assigned, so go through the list
+ * of buffers for this sequence and save two buffers in each IOCBq
+ */
+ list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
+ if (!iocbq) {
+ lpfc_in_buf_free(vport->phba, d_buf);
+ continue;
+ }
+ if (!iocbq->context3) {
+ iocbq->context3 = d_buf;
+ iocbq->iocb.ulpBdeCount++;
+ iocbq->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize =
+ LPFC_DATA_BUF_SIZE;
+ first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
+ bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
+ } else {
+ iocbq = lpfc_sli_get_iocbq(vport->phba);
+ if (!iocbq) {
+ if (first_iocbq) {
+ first_iocbq->iocb.ulpStatus =
+ IOSTAT_FCP_RSP_ERROR;
+ first_iocbq->iocb.un.ulpWord[4] =
+ IOERR_NO_RESOURCES;
+ }
+ lpfc_in_buf_free(vport->phba, d_buf);
+ continue;
+ }
+ iocbq->context2 = d_buf;
+ iocbq->context3 = NULL;
+ iocbq->iocb.ulpBdeCount = 1;
+ iocbq->iocb.un.cont64[0].tus.f.bdeSize =
+ LPFC_DATA_BUF_SIZE;
+ first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
+ bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
+ iocbq->iocb.un.rcvels.remoteID = sid;
+ list_add_tail(&iocbq->list, &first_iocbq->list);
+ }
+ }
+ return first_iocbq;
+}
+
+/**
+ * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called with no lock held. This function processes all
+ * the received buffers and gives it to upper layers when a received buffer
+ * indicates that it is the final frame in the sequence. The interrupt
+ * service routine processes received buffers at interrupt contexts and adds
+ * received dma buffers to the rb_pend_list queue and signals the worker thread.
+ * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
+ * appropriate receive function when the final frame in a sequence is received.
+ **/
+int
+lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba)
+{
+ LIST_HEAD(cmplq);
+ struct hbq_dmabuf *dmabuf, *seq_dmabuf;
+ struct fc_frame_header *fc_hdr;
+ struct lpfc_vport *vport;
+ uint32_t fcfi;
+ struct lpfc_iocbq *iocbq;
+
+ /* Clear hba flag and get all received buffers into the cmplq */
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~HBA_RECEIVE_BUFFER;
+ list_splice_init(&phba->rb_pend_list, &cmplq);
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Process each received buffer */
+ while ((dmabuf = lpfc_sli_hbqbuf_get(&cmplq)) != NULL) {
+ fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
+ /* check to see if this a valid type of frame */
+ if (lpfc_fc_frame_check(phba, fc_hdr)) {
+ lpfc_in_buf_free(phba, &dmabuf->dbuf);
+ continue;
+ }
+ fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->rcqe);
+ vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
+ if (!vport) {
+ /* throw out the frame */
+ lpfc_in_buf_free(phba, &dmabuf->dbuf);
+ continue;
+ }
+ /* Link this frame */
+ seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
+ if (!seq_dmabuf) {
+ /* unable to add frame to vport - throw it out */
+ lpfc_in_buf_free(phba, &dmabuf->dbuf);
+ continue;
+ }
+ /* If not last frame in sequence continue processing frames. */
+ if (!lpfc_seq_complete(seq_dmabuf)) {
+ /*
+ * When saving off frames post a new one and mark this
+ * frame to be freed when it is finished.
+ **/
+ lpfc_sli_hbqbuf_fill_hbqs(phba, LPFC_ELS_HBQ, 1);
+ dmabuf->tag = -1;
+ continue;
+ }
+ fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
+ iocbq = lpfc_prep_seq(vport, seq_dmabuf);
+ if (!lpfc_complete_unsol_iocb(phba,
+ &phba->sli.ring[LPFC_ELS_RING],
+ iocbq, fc_hdr->fh_r_ctl,
+ fc_hdr->fh_type))
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "2540 Ring %d handler: unexpected Rctl "
+ "x%x Type x%x received\n",
+ LPFC_ELS_RING,
+ fc_hdr->fh_r_ctl, fc_hdr->fh_type);
+ };
+ return 0;
+}
+
+/**
+ * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to post rpi header templates to the
+ * HBA consistent with the SLI-4 interface spec. This routine
+ * posts a PAGE_SIZE memory region to the port to hold up to
+ * PAGE_SIZE modulo 64 rpi context headers.
+ *
+ * This routine does not require any locks. It's usage is expected
+ * to be driver load or reset recovery when the driver is
+ * sequential.
+ *
+ * Return codes
+ * 0 - successful
+ * EIO - The mailbox failed to complete successfully.
+ * When this error occurs, the driver is not guaranteed
+ * to have any rpi regions posted to the device and
+ * must either attempt to repost the regions or take a
+ * fatal error.
+ **/
+int
+lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
+{
+ struct lpfc_rpi_hdr *rpi_page;
+ uint32_t rc = 0;
+
+ /* Post all rpi memory regions to the port. */
+ list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
+ rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2008 Error %d posting all rpi "
+ "headers\n", rc);
+ rc = -EIO;
+ break;
+ }
+ }
+
+ return rc;
+}
+
+/**
+ * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
+ * @phba: pointer to lpfc hba data structure.
+ * @rpi_page: pointer to the rpi memory region.
+ *
+ * This routine is invoked to post a single rpi header to the
+ * HBA consistent with the SLI-4 interface spec. This memory region
+ * maps up to 64 rpi context regions.
+ *
+ * Return codes
+ * 0 - successful
+ * ENOMEM - No available memory
+ * EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
+{
+ LPFC_MBOXQ_t *mboxq;
+ struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
+ uint32_t rc = 0;
+ uint32_t mbox_tmo;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ /* The port is notified of the header region via a mailbox command. */
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2001 Unable to allocate memory for issuing "
+ "SLI_CONFIG_SPECIAL mailbox command\n");
+ return -ENOMEM;
+ }
+
+ /* Post all rpi memory regions to the port. */
+ hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
+ mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
+ sizeof(struct lpfc_mbx_post_hdr_tmpl) -
+ sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
+ bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
+ hdr_tmpl, rpi_page->page_count);
+ bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
+ rpi_page->start_rpi);
+ hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
+ hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2514 POST_RPI_HDR mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to post rpi header templates to the
+ * HBA consistent with the SLI-4 interface spec. This routine
+ * posts a PAGE_SIZE memory region to the port to hold up to
+ * PAGE_SIZE modulo 64 rpi context headers.
+ *
+ * Returns
+ * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
+ * LPFC_RPI_ALLOC_ERROR if no rpis are available.
+ **/
+int
+lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
+{
+ int rpi;
+ uint16_t max_rpi, rpi_base, rpi_limit;
+ uint16_t rpi_remaining;
+ struct lpfc_rpi_hdr *rpi_hdr;
+
+ max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
+ rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
+ rpi_limit = phba->sli4_hba.next_rpi;
+
+ /*
+ * The valid rpi range is not guaranteed to be zero-based. Start
+ * the search at the rpi_base as reported by the port.
+ */
+ spin_lock_irq(&phba->hbalock);
+ rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
+ if (rpi >= rpi_limit || rpi < rpi_base)
+ rpi = LPFC_RPI_ALLOC_ERROR;
+ else {
+ set_bit(rpi, phba->sli4_hba.rpi_bmask);
+ phba->sli4_hba.max_cfg_param.rpi_used++;
+ phba->sli4_hba.rpi_count++;
+ }
+
+ /*
+ * Don't try to allocate more rpi header regions if the device limit
+ * on available rpis max has been exhausted.
+ */
+ if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
+ (phba->sli4_hba.rpi_count >= max_rpi)) {
+ spin_unlock_irq(&phba->hbalock);
+ return rpi;
+ }
+
+ /*
+ * If the driver is running low on rpi resources, allocate another
+ * page now. Note that the next_rpi value is used because
+ * it represents how many are actually in use whereas max_rpi notes
+ * how many are supported max by the device.
+ */
+ rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
+ phba->sli4_hba.rpi_count;
+ spin_unlock_irq(&phba->hbalock);
+ if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
+ rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
+ if (!rpi_hdr) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2002 Error Could not grow rpi "
+ "count\n");
+ } else {
+ lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
+ }
+ }
+
+ return rpi;
+}
+
+/**
+ * lpfc_sli4_free_rpi - Release an rpi for reuse.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release an rpi to the pool of
+ * available rpis maintained by the driver.
+ **/
+void
+lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
+{
+ spin_lock_irq(&phba->hbalock);
+ clear_bit(rpi, phba->sli4_hba.rpi_bmask);
+ phba->sli4_hba.rpi_count--;
+ phba->sli4_hba.max_cfg_param.rpi_used--;
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/**
+ * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to remove the memory region that
+ * provided rpi via a bitmask.
+ **/
+void
+lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
+{
+ kfree(phba->sli4_hba.rpi_bmask);
+}
+
+/**
+ * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to remove the memory region that
+ * provided rpi via a bitmask.
+ **/
+int
+lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
+{
+ LPFC_MBOXQ_t *mboxq;
+ struct lpfc_hba *phba = ndlp->phba;
+ int rc;
+
+ /* The port is notified of the header region via a mailbox command. */
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq)
+ return -ENOMEM;
+
+ /* Post all rpi memory regions to the port. */
+ lpfc_resume_rpi(mboxq, ndlp);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2010 Resume RPI Mailbox failed "
+ "status %d, mbxStatus x%x\n", rc,
+ bf_get(lpfc_mqe_status, &mboxq->u.mqe));
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ return 0;
+}
+
+/**
+ * lpfc_sli4_init_vpi - Initialize a vpi with the port
+ * @phba: pointer to lpfc hba data structure.
+ * @vpi: vpi value to activate with the port.
+ *
+ * This routine is invoked to activate a vpi with the
+ * port when the host intends to use vports with a
+ * nonzero vpi.
+ *
+ * Returns:
+ * 0 success
+ * -Evalue otherwise
+ **/
+int
+lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
+{
+ LPFC_MBOXQ_t *mboxq;
+ int rc = 0;
+ uint32_t mbox_tmo;
+
+ if (vpi == 0)
+ return -EINVAL;
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq)
+ return -ENOMEM;
+ lpfc_init_vpi(phba, mboxq, vpi);
+ mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
+ rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2022 INIT VPI Mailbox failed "
+ "status %d, mbxStatus x%x\n", rc,
+ bf_get(lpfc_mqe_status, &mboxq->u.mqe));
+ rc = -EIO;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: Pointer to mailbox object.
+ *
+ * This routine is invoked to manually add a single FCF record. The caller
+ * must pass a completely initialized FCF_Record. This routine takes
+ * care of the nonembedded mailbox operations.
+ **/
+static void
+lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ void *virt_addr;
+ union lpfc_sli4_cfg_shdr *shdr;
+ uint32_t shdr_status, shdr_add_status;
+
+ virt_addr = mboxq->sge_array->addr[0];
+ /* The IOCTL status is embedded in the mailbox subheader. */
+ shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+
+ if ((shdr_status || shdr_add_status) &&
+ (shdr_status != STATUS_FCF_IN_USE))
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2558 ADD_FCF_RECORD mailbox failed with "
+ "status x%x add_status x%x\n",
+ shdr_status, shdr_add_status);
+
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+}
+
+/**
+ * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_record: pointer to the initialized fcf record to add.
+ *
+ * This routine is invoked to manually add a single FCF record. The caller
+ * must pass a completely initialized FCF_Record. This routine takes
+ * care of the nonembedded mailbox operations.
+ **/
+int
+lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
+{
+ int rc = 0;
+ LPFC_MBOXQ_t *mboxq;
+ uint8_t *bytep;
+ void *virt_addr;
+ dma_addr_t phys_addr;
+ struct lpfc_mbx_sge sge;
+ uint32_t alloc_len, req_len;
+ uint32_t fcfindex;
+
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2009 Failed to allocate mbox for ADD_FCF cmd\n");
+ return -ENOMEM;
+ }
+
+ req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
+ sizeof(uint32_t);
+
+ /* Allocate DMA memory and set up the non-embedded mailbox command */
+ alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
+ req_len, LPFC_SLI4_MBX_NEMBED);
+ if (alloc_len < req_len) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2523 Allocated DMA memory size (x%x) is "
+ "less than the requested DMA memory "
+ "size (x%x)\n", alloc_len, req_len);
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return -ENOMEM;
+ }
+
+ /*
+ * Get the first SGE entry from the non-embedded DMA memory. This
+ * routine only uses a single SGE.
+ */
+ lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
+ phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
+ if (unlikely(!mboxq->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2526 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return -ENOMEM;
+ }
+ virt_addr = mboxq->sge_array->addr[0];
+ /*
+ * Configure the FCF record for FCFI 0. This is the driver's
+ * hardcoded default and gets used in nonFIP mode.
+ */
+ fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
+ bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
+ lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
+
+ /*
+ * Copy the fcf_index and the FCF Record Data. The data starts after
+ * the FCoE header plus word10. The data copy needs to be endian
+ * correct.
+ */
+ bytep += sizeof(uint32_t);
+ lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
+ mboxq->vport = phba->pport;
+ mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2515 ADD_FCF_RECORD mailbox failed with "
+ "status 0x%x\n", rc);
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ rc = -EIO;
+ } else
+ rc = 0;
+
+ return rc;
+}
+
+/**
+ * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_record: pointer to the fcf record to write the default data.
+ * @fcf_index: FCF table entry index.
+ *
+ * This routine is invoked to build the driver's default FCF record. The
+ * values used are hardcoded. This routine handles memory initialization.
+ *
+ **/
+void
+lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
+ struct fcf_record *fcf_record,
+ uint16_t fcf_index)
+{
+ memset(fcf_record, 0, sizeof(struct fcf_record));
+ fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
+ fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
+ fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
+ bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
+ bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
+ bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
+ bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
+ bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
+ bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
+ bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
+ bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
+ bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
+ bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
+ bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
+ bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
+ bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
+ LPFC_FCF_FPMA | LPFC_FCF_SPMA);
+ /* Set the VLAN bit map */
+ if (phba->valid_vlan) {
+ fcf_record->vlan_bitmap[phba->vlan_id / 8]
+ = 1 << (phba->vlan_id % 8);
+ }
+}
+
+/**
+ * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index: FCF table entry offset.
+ *
+ * This routine is invoked to read up to @fcf_num of FCF record from the
+ * device starting with the given @fcf_index.
+ **/
+int
+lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
+{
+ int rc = 0, error;
+ LPFC_MBOXQ_t *mboxq;
+ void *virt_addr;
+ dma_addr_t phys_addr;
+ uint8_t *bytep;
+ struct lpfc_mbx_sge sge;
+ uint32_t alloc_len, req_len;
+ struct lpfc_mbx_read_fcf_tbl *read_fcf;
+
+ phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2000 Failed to allocate mbox for "
+ "READ_FCF cmd\n");
+ return -ENOMEM;
+ }
+
+ req_len = sizeof(struct fcf_record) +
+ sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
+
+ /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
+ alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
+ LPFC_SLI4_MBX_NEMBED);
+
+ if (alloc_len < req_len) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0291 Allocated DMA memory size (x%x) is "
+ "less than the requested DMA memory "
+ "size (x%x)\n", alloc_len, req_len);
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return -ENOMEM;
+ }
+
+ /* Get the first SGE entry from the non-embedded DMA memory. This
+ * routine only uses a single SGE.
+ */
+ lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
+ phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
+ if (unlikely(!mboxq->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2527 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return -ENOMEM;
+ }
+ virt_addr = mboxq->sge_array->addr[0];
+ read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
+
+ /* Set up command fields */
+ bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
+ /* Perform necessary endian conversion */
+ bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
+ lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
+ mboxq->vport = phba->pport;
+ mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ error = -EIO;
+ } else {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag |= FCF_DISC_INPROGRESS;
+ spin_unlock_irq(&phba->hbalock);
+ error = 0;
+ }
+ return error;
+}
+
+/**
+ * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This function read region 23 and parse TLV for port status to
+ * decide if the user disaled the port. If the TLV indicates the
+ * port is disabled, the hba_flag is set accordingly.
+ **/
+void
+lpfc_sli_read_link_ste(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *pmb = NULL;
+ MAILBOX_t *mb;
+ uint8_t *rgn23_data = NULL;
+ uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
+ int rc;
+
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2600 lpfc_sli_read_serdes_param failed to"
+ " allocate mailbox memory\n");
+ goto out;
+ }
+ mb = &pmb->u.mb;
+
+ /* Get adapter Region 23 data */
+ rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
+ if (!rgn23_data)
+ goto out;
+
+ do {
+ lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2601 lpfc_sli_read_link_ste failed to"
+ " read config region 23 rc 0x%x Status 0x%x\n",
+ rc, mb->mbxStatus);
+ mb->un.varDmp.word_cnt = 0;
+ }
+ /*
+ * dump mem may return a zero when finished or we got a
+ * mailbox error, either way we are done.
+ */
+ if (mb->un.varDmp.word_cnt == 0)
+ break;
+ if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
+ mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
+
+ lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
+ rgn23_data + offset,
+ mb->un.varDmp.word_cnt);
+ offset += mb->un.varDmp.word_cnt;
+ } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
+
+ data_size = offset;
+ offset = 0;
+
+ if (!data_size)
+ goto out;
+
+ /* Check the region signature first */
+ if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2619 Config region 23 has bad signature\n");
+ goto out;
+ }
+ offset += 4;
+
+ /* Check the data structure version */
+ if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2620 Config region 23 has bad version\n");
+ goto out;
+ }
+ offset += 4;
+
+ /* Parse TLV entries in the region */
+ while (offset < data_size) {
+ if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
+ break;
+ /*
+ * If the TLV is not driver specific TLV or driver id is
+ * not linux driver id, skip the record.
+ */
+ if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
+ (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
+ (rgn23_data[offset + 3] != 0)) {
+ offset += rgn23_data[offset + 1] * 4 + 4;
+ continue;
+ }
+
+ /* Driver found a driver specific TLV in the config region */
+ sub_tlv_len = rgn23_data[offset + 1] * 4;
+ offset += 4;
+ tlv_offset = 0;
+
+ /*
+ * Search for configured port state sub-TLV.
+ */
+ while ((offset < data_size) &&
+ (tlv_offset < sub_tlv_len)) {
+ if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
+ offset += 4;
+ tlv_offset += 4;
+ break;
+ }
+ if (rgn23_data[offset] != PORT_STE_TYPE) {
+ offset += rgn23_data[offset + 1] * 4 + 4;
+ tlv_offset += rgn23_data[offset + 1] * 4 + 4;
+ continue;
+ }
+
+ /* This HBA contains PORT_STE configured */
+ if (!rgn23_data[offset + 2])
+ phba->hba_flag |= LINK_DISABLED;
+
+ goto out;
+ }
+ }
+out:
+ if (pmb)
+ mempool_free(pmb, phba->mbox_mem_pool);
+ kfree(rgn23_data);
+ return;
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff