/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2006 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2008 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw.h"
+#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_sli.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
+#include "lpfc_vport.h"
+#include "lpfc_debugfs.h"
/* AlpaArray for assignment of scsid for scan-down and bind_method */
static uint8_t lpfcAlpaArray[] = {
0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
};
-static void lpfc_disc_timeout_handler(struct lpfc_hba *);
+static void lpfc_disc_timeout_handler(struct lpfc_vport *);
+static void lpfc_disc_flush_list(struct lpfc_vport *vport);
void
lpfc_terminate_rport_io(struct fc_rport *rport)
rdata = rport->dd_data;
ndlp = rdata->pnode;
- if (!ndlp) {
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
printk(KERN_ERR "Cannot find remote node"
" to terminate I/O Data x%x\n",
return;
}
- phba = ndlp->nlp_phba;
+ phba = ndlp->vport->phba;
+
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
+ "rport terminate: sid:x%x did:x%x flg:x%x",
+ ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
- spin_lock_irq(phba->host->host_lock);
if (ndlp->nlp_sid != NLP_NO_SID) {
- lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
- ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
+ lpfc_sli_abort_iocb(ndlp->vport,
+ &phba->sli.ring[phba->sli.fcp_ring],
+ ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
- spin_unlock_irq(phba->host->host_lock);
-
- return;
}
/*
{
struct lpfc_rport_data *rdata;
struct lpfc_nodelist * ndlp;
+ struct lpfc_vport *vport;
+ struct lpfc_hba *phba;
+ struct lpfc_work_evt *evtp;
+ int put_node;
+ int put_rport;
+
+ rdata = rport->dd_data;
+ ndlp = rdata->pnode;
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+ return;
+
+ vport = ndlp->vport;
+ phba = vport->phba;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport devlosscb: sid:x%x did:x%x flg:x%x",
+ ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
+
+ /* Don't defer this if we are in the process of deleting the vport
+ * or unloading the driver. The unload will cleanup the node
+ * appropriately we just need to cleanup the ndlp rport info here.
+ */
+ if (vport->load_flag & FC_UNLOADING) {
+ put_node = rdata->pnode != NULL;
+ put_rport = ndlp->rport != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ if (put_rport)
+ put_device(&rport->dev);
+ return;
+ }
+
+ if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
+ return;
+
+ evtp = &ndlp->dev_loss_evt;
+
+ if (!list_empty(&evtp->evt_listp))
+ return;
+
+ spin_lock_irq(&phba->hbalock);
+ /* We need to hold the node by incrementing the reference
+ * count until this queued work is done
+ */
+ evtp->evt_arg1 = lpfc_nlp_get(ndlp);
+ if (evtp->evt_arg1) {
+ evtp->evt = LPFC_EVT_DEV_LOSS;
+ list_add_tail(&evtp->evt_listp, &phba->work_list);
+ lpfc_worker_wake_up(phba);
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ return;
+}
+
+/*
+ * This function is called from the worker thread when dev_loss_tmo
+ * expire.
+ */
+static void
+lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_rport_data *rdata;
+ struct fc_rport *rport;
+ struct lpfc_vport *vport;
+ struct lpfc_hba *phba;
uint8_t *name;
+ int put_node;
+ int put_rport;
int warn_on = 0;
- struct lpfc_hba *phba;
+
+ rport = ndlp->rport;
+
+ if (!rport)
+ return;
rdata = rport->dd_data;
- ndlp = rdata->pnode;
+ name = (uint8_t *) &ndlp->nlp_portname;
+ vport = ndlp->vport;
+ phba = vport->phba;
- if (!ndlp) {
- if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
- printk(KERN_ERR "Cannot find remote node"
- " for rport in dev_loss_tmo_callbk x%x\n",
- rport->port_id);
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport devlosstmo:did:x%x type:x%x id:x%x",
+ ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
+
+ /* Don't defer this if we are in the process of deleting the vport
+ * or unloading the driver. The unload will cleanup the node
+ * appropriately we just need to cleanup the ndlp rport info here.
+ */
+ if (vport->load_flag & FC_UNLOADING) {
+ if (ndlp->nlp_sid != NLP_NO_SID) {
+ /* flush the target */
+ lpfc_sli_abort_iocb(vport,
+ &phba->sli.ring[phba->sli.fcp_ring],
+ ndlp->nlp_sid, 0, LPFC_CTX_TGT);
+ }
+ put_node = rdata->pnode != NULL;
+ put_rport = ndlp->rport != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ if (put_rport)
+ put_device(&rport->dev);
return;
}
- name = (uint8_t *)&ndlp->nlp_portname;
- phba = ndlp->nlp_phba;
+ if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0284 Devloss timeout Ignored on "
+ "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
+ "NPort x%x\n",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7),
+ ndlp->nlp_DID);
+ return;
+ }
- spin_lock_irq(phba->host->host_lock);
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ /* We will clean up these Nodes in linkup */
+ put_node = rdata->pnode != NULL;
+ put_rport = ndlp->rport != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ if (put_rport)
+ put_device(&rport->dev);
+ return;
+ }
if (ndlp->nlp_sid != NLP_NO_SID) {
warn_on = 1;
/* flush the target */
- lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
- ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
+ lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
+ ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
- if (phba->fc_flag & FC_UNLOADING)
- warn_on = 0;
-
- spin_unlock_irq(phba->host->host_lock);
if (warn_on) {
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0203 Devloss timeout on "
- "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
- "NPort x%x Data: x%x x%x x%x\n",
- phba->brd_no,
- *name, *(name+1), *(name+2), *(name+3),
- *(name+4), *(name+5), *(name+6), *(name+7),
- ndlp->nlp_DID, ndlp->nlp_flag,
- ndlp->nlp_state, ndlp->nlp_rpi);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0203 Devloss timeout on "
+ "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
+ "NPort x%06x Data: x%x x%x x%x\n",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7),
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ ndlp->nlp_state, ndlp->nlp_rpi);
} else {
- lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
- "%d:0204 Devloss timeout on "
- "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
- "NPort x%x Data: x%x x%x x%x\n",
- phba->brd_no,
- *name, *(name+1), *(name+2), *(name+3),
- *(name+4), *(name+5), *(name+6), *(name+7),
- ndlp->nlp_DID, ndlp->nlp_flag,
- ndlp->nlp_state, ndlp->nlp_rpi);
- }
-
- if (!(phba->fc_flag & FC_UNLOADING) &&
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0204 Devloss timeout on "
+ "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
+ "NPort x%06x Data: x%x x%x x%x\n",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7),
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ ndlp->nlp_state, ndlp->nlp_rpi);
+ }
+
+ put_node = rdata->pnode != NULL;
+ put_rport = ndlp->rport != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ if (put_rport)
+ put_device(&rport->dev);
+
+ if (!(vport->load_flag & FC_UNLOADING) &&
!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
- !(ndlp->nlp_flag & NLP_NPR_2B_DISC))
- lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
- else {
- rdata->pnode = NULL;
- ndlp->rport = NULL;
+ !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
+ (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
+ lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
+}
+
+/**
+ * lpfc_alloc_fast_evt: Allocates data structure for posting event.
+ * @phba: Pointer to hba context object.
+ *
+ * This function is called from the functions which need to post
+ * events from interrupt context. This function allocates data
+ * structure required for posting event. It also keeps track of
+ * number of events pending and prevent event storm when there are
+ * too many events.
+ **/
+struct lpfc_fast_path_event *
+lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
+ struct lpfc_fast_path_event *ret;
+
+ /* If there are lot of fast event do not exhaust memory due to this */
+ if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
+ return NULL;
+
+ ret = kzalloc(sizeof(struct lpfc_fast_path_event),
+ GFP_ATOMIC);
+ if (ret)
+ atomic_inc(&phba->fast_event_count);
+ INIT_LIST_HEAD(&ret->work_evt.evt_listp);
+ ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
+ return ret;
+}
+
+/**
+ * lpfc_free_fast_evt: Frees event data structure.
+ * @phba: Pointer to hba context object.
+ * @evt: Event object which need to be freed.
+ *
+ * This function frees the data structure required for posting
+ * events.
+ **/
+void
+lpfc_free_fast_evt(struct lpfc_hba *phba,
+ struct lpfc_fast_path_event *evt) {
+
+ atomic_dec(&phba->fast_event_count);
+ kfree(evt);
+}
+
+/**
+ * lpfc_send_fastpath_evt: Posts events generated from fast path.
+ * @phba: Pointer to hba context object.
+ * @evtp: Event data structure.
+ *
+ * This function is called from worker thread, when the interrupt
+ * context need to post an event. This function posts the event
+ * to fc transport netlink interface.
+ **/
+static void
+lpfc_send_fastpath_evt(struct lpfc_hba *phba,
+ struct lpfc_work_evt *evtp)
+{
+ unsigned long evt_category, evt_sub_category;
+ struct lpfc_fast_path_event *fast_evt_data;
+ char *evt_data;
+ uint32_t evt_data_size;
+ struct Scsi_Host *shost;
+
+ fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
+ work_evt);
+
+ evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
+ evt_sub_category = (unsigned long) fast_evt_data->un.
+ fabric_evt.subcategory;
+ shost = lpfc_shost_from_vport(fast_evt_data->vport);
+ if (evt_category == FC_REG_FABRIC_EVENT) {
+ if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
+ evt_data = (char *) &fast_evt_data->un.read_check_error;
+ evt_data_size = sizeof(fast_evt_data->un.
+ read_check_error);
+ } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
+ (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
+ evt_data = (char *) &fast_evt_data->un.fabric_evt;
+ evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
+ } else {
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
+ }
+ } else if (evt_category == FC_REG_SCSI_EVENT) {
+ switch (evt_sub_category) {
+ case LPFC_EVENT_QFULL:
+ case LPFC_EVENT_DEVBSY:
+ evt_data = (char *) &fast_evt_data->un.scsi_evt;
+ evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
+ break;
+ case LPFC_EVENT_CHECK_COND:
+ evt_data = (char *) &fast_evt_data->un.check_cond_evt;
+ evt_data_size = sizeof(fast_evt_data->un.
+ check_cond_evt);
+ break;
+ case LPFC_EVENT_VARQUEDEPTH:
+ evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
+ evt_data_size = sizeof(fast_evt_data->un.
+ queue_depth_evt);
+ break;
+ default:
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
+ }
+ } else {
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
}
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ evt_data_size,
+ evt_data,
+ LPFC_NL_VENDOR_ID);
+
+ lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
static void
-lpfc_work_list_done(struct lpfc_hba * phba)
+lpfc_work_list_done(struct lpfc_hba *phba)
{
struct lpfc_work_evt *evtp = NULL;
struct lpfc_nodelist *ndlp;
int free_evt;
- spin_lock_irq(phba->host->host_lock);
- while(!list_empty(&phba->work_list)) {
+ spin_lock_irq(&phba->hbalock);
+ while (!list_empty(&phba->work_list)) {
list_remove_head((&phba->work_list), evtp, typeof(*evtp),
evt_listp);
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
free_evt = 1;
switch (evtp->evt) {
case LPFC_EVT_ELS_RETRY:
- ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
+ ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
lpfc_els_retry_delay_handler(ndlp);
+ free_evt = 0; /* evt is part of ndlp */
+ /* decrement the node reference count held
+ * for this queued work
+ */
+ lpfc_nlp_put(ndlp);
+ break;
+ case LPFC_EVT_DEV_LOSS:
+ ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
+ lpfc_dev_loss_tmo_handler(ndlp);
free_evt = 0;
+ /* decrement the node reference count held for
+ * this queued work
+ */
+ lpfc_nlp_put(ndlp);
break;
case LPFC_EVT_ONLINE:
- if (phba->hba_state < LPFC_LINK_DOWN)
- *(int *)(evtp->evt_arg1) = lpfc_online(phba);
+ if (phba->link_state < LPFC_LINK_DOWN)
+ *(int *) (evtp->evt_arg1) = lpfc_online(phba);
else
- *(int *)(evtp->evt_arg1) = 0;
+ *(int *) (evtp->evt_arg1) = 0;
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_OFFLINE_PREP:
- if (phba->hba_state >= LPFC_LINK_DOWN)
+ if (phba->link_state >= LPFC_LINK_DOWN)
lpfc_offline_prep(phba);
*(int *)(evtp->evt_arg1) = 0;
complete((struct completion *)(evtp->evt_arg2));
case LPFC_EVT_KILL:
lpfc_offline(phba);
*(int *)(evtp->evt_arg1)
- = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
+ = (phba->pport->stopped)
+ ? 0 : lpfc_sli_brdkill(phba);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
+ case LPFC_EVT_FASTPATH_MGMT_EVT:
+ lpfc_send_fastpath_evt(phba, evtp);
+ free_evt = 0;
+ break;
}
if (free_evt)
kfree(evtp);
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
}
static void
-lpfc_work_done(struct lpfc_hba * phba)
+lpfc_work_done(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
+ uint32_t ha_copy, status, control, work_port_events;
+ struct lpfc_vport **vports;
+ struct lpfc_vport *vport;
int i;
- uint32_t ha_copy;
- uint32_t control;
- uint32_t work_hba_events;
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
ha_copy = phba->work_ha;
phba->work_ha = 0;
- work_hba_events=phba->work_hba_events;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
if (ha_copy & HA_ERATT)
+ /* Handle the error attention event */
lpfc_handle_eratt(phba);
if (ha_copy & HA_MBATT)
if (ha_copy & HA_LATT)
lpfc_handle_latt(phba);
- if (work_hba_events & WORKER_DISC_TMO)
- lpfc_disc_timeout_handler(phba);
-
- if (work_hba_events & WORKER_ELS_TMO)
- lpfc_els_timeout_handler(phba);
-
- if (work_hba_events & WORKER_MBOX_TMO)
- lpfc_mbox_timeout_handler(phba);
-
- if (work_hba_events & WORKER_FDMI_TMO)
- lpfc_fdmi_tmo_handler(phba);
-
- spin_lock_irq(phba->host->host_lock);
- phba->work_hba_events &= ~work_hba_events;
- spin_unlock_irq(phba->host->host_lock);
-
- for (i = 0; i < phba->sli.num_rings; i++, ha_copy >>= 4) {
- pring = &phba->sli.ring[i];
- if ((ha_copy & HA_RXATT)
- || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
- if (pring->flag & LPFC_STOP_IOCB_MASK) {
- pring->flag |= LPFC_DEFERRED_RING_EVENT;
- } else {
- lpfc_sli_handle_slow_ring_event(phba, pring,
- (ha_copy &
- HA_RXMASK));
- pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
- }
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0; i <= phba->max_vpi; i++) {
/*
- * Turn on Ring interrupts
+ * We could have no vports in array if unloading, so if
+ * this happens then just use the pport
*/
- spin_lock_irq(phba->host->host_lock);
- control = readl(phba->HCregaddr);
- control |= (HC_R0INT_ENA << i);
+ if (vports[i] == NULL && i == 0)
+ vport = phba->pport;
+ else
+ vport = vports[i];
+ if (vport == NULL)
+ break;
+ spin_lock_irq(&vport->work_port_lock);
+ work_port_events = vport->work_port_events;
+ vport->work_port_events &= ~work_port_events;
+ spin_unlock_irq(&vport->work_port_lock);
+ if (work_port_events & WORKER_DISC_TMO)
+ lpfc_disc_timeout_handler(vport);
+ if (work_port_events & WORKER_ELS_TMO)
+ lpfc_els_timeout_handler(vport);
+ if (work_port_events & WORKER_HB_TMO)
+ lpfc_hb_timeout_handler(phba);
+ if (work_port_events & WORKER_MBOX_TMO)
+ lpfc_mbox_timeout_handler(phba);
+ if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
+ lpfc_unblock_fabric_iocbs(phba);
+ if (work_port_events & WORKER_FDMI_TMO)
+ lpfc_fdmi_timeout_handler(vport);
+ if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
+ lpfc_ramp_down_queue_handler(phba);
+ if (work_port_events & WORKER_RAMP_UP_QUEUE)
+ lpfc_ramp_up_queue_handler(phba);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ pring = &phba->sli.ring[LPFC_ELS_RING];
+ status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
+ status >>= (4*LPFC_ELS_RING);
+ if ((status & HA_RXMASK)
+ || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
+ if (pring->flag & LPFC_STOP_IOCB_EVENT) {
+ pring->flag |= LPFC_DEFERRED_RING_EVENT;
+ /* Set the lpfc data pending flag */
+ set_bit(LPFC_DATA_READY, &phba->data_flags);
+ } else {
+ pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
+ lpfc_sli_handle_slow_ring_event(phba, pring,
+ (status &
+ HA_RXMASK));
+ }
+ /*
+ * Turn on Ring interrupts
+ */
+ spin_lock_irq(&phba->hbalock);
+ control = readl(phba->HCregaddr);
+ if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
+ lpfc_debugfs_slow_ring_trc(phba,
+ "WRK Enable ring: cntl:x%x hacopy:x%x",
+ control, ha_copy, 0);
+
+ control |= (HC_R0INT_ENA << LPFC_ELS_RING);
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- spin_unlock_irq(phba->host->host_lock);
}
+ else {
+ lpfc_debugfs_slow_ring_trc(phba,
+ "WRK Ring ok: cntl:x%x hacopy:x%x",
+ control, ha_copy, 0);
+ }
+ spin_unlock_irq(&phba->hbalock);
}
-
- lpfc_work_list_done (phba);
-
-}
-
-static int
-check_work_wait_done(struct lpfc_hba *phba) {
-
- spin_lock_irq(phba->host->host_lock);
- if (phba->work_ha ||
- phba->work_hba_events ||
- (!list_empty(&phba->work_list)) ||
- kthread_should_stop()) {
- spin_unlock_irq(phba->host->host_lock);
- return 1;
- } else {
- spin_unlock_irq(phba->host->host_lock);
- return 0;
- }
+ lpfc_work_list_done(phba);
}
int
{
struct lpfc_hba *phba = p;
int rc;
- DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq);
set_user_nice(current, -20);
- phba->work_wait = &work_waitq;
-
- while (1) {
-
- rc = wait_event_interruptible(work_waitq,
- check_work_wait_done(phba));
- BUG_ON(rc);
-
- if (kthread_should_stop())
+ phba->data_flags = 0;
+
+ while (!kthread_should_stop()) {
+ /* wait and check worker queue activities */
+ rc = wait_event_interruptible(phba->work_waitq,
+ (test_and_clear_bit(LPFC_DATA_READY,
+ &phba->data_flags)
+ || kthread_should_stop()));
+ /* Signal wakeup shall terminate the worker thread */
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
+ "0433 Wakeup on signal: rc=x%x\n", rc);
break;
+ }
+ /* Attend pending lpfc data processing */
lpfc_work_done(phba);
-
}
- phba->work_wait = NULL;
+ phba->worker_thread = NULL;
+ lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
+ "0432 Worker thread stopped.\n");
return 0;
}
* embedding it in the IOCB.
*/
int
-lpfc_workq_post_event(struct lpfc_hba * phba, void *arg1, void *arg2,
+lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
uint32_t evt)
{
struct lpfc_work_evt *evtp;
+ unsigned long flags;
/*
* All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
* be queued to worker thread for processing
*/
- evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_KERNEL);
+ evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
if (!evtp)
return 0;
evtp->evt_arg2 = arg2;
evtp->evt = evt;
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&evtp->evt_listp, &phba->work_list);
- if (phba->work_wait)
- wake_up(phba->work_wait);
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+
+ lpfc_worker_wake_up(phba);
return 1;
}
-int
-lpfc_linkdown(struct lpfc_hba * phba)
+void
+lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
{
- struct lpfc_sli *psli;
- struct lpfc_nodelist *ndlp, *next_ndlp;
- struct list_head *listp, *node_list[7];
- LPFC_MBOXQ_t *mb;
- int rc, i;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ int rc;
- psli = &phba->sli;
- /* sysfs or selective reset may call this routine to clean up */
- if (phba->hba_state >= LPFC_LINK_DOWN) {
- if (phba->hba_state == LPFC_LINK_DOWN)
- return 0;
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ continue;
+ if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
+ ((vport->port_type == LPFC_NPIV_PORT) &&
+ (ndlp->nlp_DID == NameServer_DID)))
+ lpfc_unreg_rpi(vport, ndlp);
- spin_lock_irq(phba->host->host_lock);
- phba->hba_state = LPFC_LINK_DOWN;
- spin_unlock_irq(phba->host->host_lock);
+ /* Leave Fabric nodes alone on link down */
+ if (!remove && ndlp->nlp_type & NLP_FABRIC)
+ continue;
+ rc = lpfc_disc_state_machine(vport, ndlp, NULL,
+ remove
+ ? NLP_EVT_DEVICE_RM
+ : NLP_EVT_DEVICE_RECOVERY);
}
-
- fc_host_post_event(phba->host, fc_get_event_number(),
- FCH_EVT_LINKDOWN, 0);
-
- /* Clean up any firmware default rpi's */
- if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
- lpfc_unreg_did(phba, 0xffffffff, mb);
- mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
- if (lpfc_sli_issue_mbox(phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
- == MBX_NOT_FINISHED) {
- mempool_free( mb, phba->mbox_mem_pool);
- }
+ if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
+ lpfc_mbx_unreg_vpi(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
}
+}
+void
+lpfc_port_link_failure(struct lpfc_vport *vport)
+{
/* Cleanup any outstanding RSCN activity */
- lpfc_els_flush_rscn(phba);
+ lpfc_els_flush_rscn(vport);
/* Cleanup any outstanding ELS commands */
- lpfc_els_flush_cmd(phba);
-
- /* Issue a LINK DOWN event to all nodes */
- node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
- node_list[1] = &phba->fc_nlpmap_list;
- node_list[2] = &phba->fc_nlpunmap_list;
- node_list[3] = &phba->fc_prli_list;
- node_list[4] = &phba->fc_reglogin_list;
- node_list[5] = &phba->fc_adisc_list;
- node_list[6] = &phba->fc_plogi_list;
- for (i = 0; i < 7; i++) {
- listp = node_list[i];
- if (list_empty(listp))
- continue;
+ lpfc_els_flush_cmd(vport);
- list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
+ lpfc_cleanup_rpis(vport, 0);
- rc = lpfc_disc_state_machine(phba, ndlp, NULL,
- NLP_EVT_DEVICE_RECOVERY);
+ /* Turn off discovery timer if its running */
+ lpfc_can_disctmo(vport);
+}
- }
- }
+static void
+lpfc_linkdown_port(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "Link Down: state:x%x rtry:x%x flg:x%x",
+ vport->port_state, vport->fc_ns_retry, vport->fc_flag);
+
+ lpfc_port_link_failure(vport);
+
+}
+
+int
+lpfc_linkdown(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_vport **vports;
+ LPFC_MBOXQ_t *mb;
+ int i;
- /* free any ndlp's on unused list */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
- nlp_listp) {
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+ if (phba->link_state == LPFC_LINK_DOWN)
+ return 0;
+ spin_lock_irq(&phba->hbalock);
+ if (phba->link_state > LPFC_LINK_DOWN) {
+ phba->link_state = LPFC_LINK_DOWN;
+ phba->pport->fc_flag &= ~FC_LBIT;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+ /* Issue a LINK DOWN event to all nodes */
+ lpfc_linkdown_port(vports[i]);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ /* Clean up any firmware default rpi's */
+ mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mb) {
+ lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
+ mb->vport = vport;
+ mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
+ == MBX_NOT_FINISHED) {
+ mempool_free(mb, phba->mbox_mem_pool);
+ }
}
/* Setup myDID for link up if we are in pt2pt mode */
- if (phba->fc_flag & FC_PT2PT) {
- phba->fc_myDID = 0;
- if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
+ if (phba->pport->fc_flag & FC_PT2PT) {
+ phba->pport->fc_myDID = 0;
+ mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mb) {
lpfc_config_link(phba, mb);
- mb->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
- if (lpfc_sli_issue_mbox
- (phba, mb, (MBX_NOWAIT | MBX_STOP_IOCB))
+ mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mb->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
- mempool_free( mb, phba->mbox_mem_pool);
+ mempool_free(mb, phba->mbox_mem_pool);
}
}
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
- spin_unlock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
+ phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
+ spin_unlock_irq(shost->host_lock);
}
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_LBIT;
- spin_unlock_irq(phba->host->host_lock);
- /* Turn off discovery timer if its running */
- lpfc_can_disctmo(phba);
-
- /* Must process IOCBs on all rings to handle ABORTed I/Os */
return 0;
}
-static int
-lpfc_linkup(struct lpfc_hba * phba)
+static void
+lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
{
- struct lpfc_nodelist *ndlp, *next_ndlp;
- struct list_head *listp, *node_list[7];
- int i;
+ struct lpfc_nodelist *ndlp;
- fc_host_post_event(phba->host, fc_get_event_number(),
- FCH_EVT_LINKUP, 0);
-
- spin_lock_irq(phba->host->host_lock);
- phba->hba_state = LPFC_LINK_UP;
- phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
- FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
- phba->fc_flag |= FC_NDISC_ACTIVE;
- phba->fc_ns_retry = 0;
- spin_unlock_irq(phba->host->host_lock);
-
-
- node_list[0] = &phba->fc_plogi_list;
- node_list[1] = &phba->fc_adisc_list;
- node_list[2] = &phba->fc_reglogin_list;
- node_list[3] = &phba->fc_prli_list;
- node_list[4] = &phba->fc_nlpunmap_list;
- node_list[5] = &phba->fc_nlpmap_list;
- node_list[6] = &phba->fc_npr_list;
- for (i = 0; i < 7; i++) {
- listp = node_list[i];
- if (list_empty(listp))
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
continue;
-
- list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) {
- if (phba->fc_flag & FC_LBIT) {
- if (ndlp->nlp_type & NLP_FABRIC) {
- /* On Linkup its safe to clean up the
- * ndlp from Fabric connections.
- */
- lpfc_nlp_list(phba, ndlp,
- NLP_UNUSED_LIST);
- } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
- /* Fail outstanding IO now since device
- * is marked for PLOGI.
- */
- lpfc_unreg_rpi(phba, ndlp);
- }
- }
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ continue;
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ /* On Linkup its safe to clean up the ndlp
+ * from Fabric connections.
+ */
+ if (ndlp->nlp_DID != Fabric_DID)
+ lpfc_unreg_rpi(vport, ndlp);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
+ /* Fail outstanding IO now since device is
+ * marked for PLOGI.
+ */
+ lpfc_unreg_rpi(vport, ndlp);
}
}
+}
- /* free any ndlp's on unused list */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
- nlp_listp) {
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
- }
+static void
+lpfc_linkup_port(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+
+ if ((vport->load_flag & FC_UNLOADING) != 0)
+ return;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "Link Up: top:x%x speed:x%x flg:x%x",
+ phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
+
+ /* If NPIV is not enabled, only bring the physical port up */
+ if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
+ (vport != phba->pport))
+ return;
+
+ fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
+
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
+ FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
+ vport->fc_flag |= FC_NDISC_ACTIVE;
+ vport->fc_ns_retry = 0;
+ spin_unlock_irq(shost->host_lock);
+
+ if (vport->fc_flag & FC_LBIT)
+ lpfc_linkup_cleanup_nodes(vport);
+
+}
+
+static int
+lpfc_linkup(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i;
+
+ phba->link_state = LPFC_LINK_UP;
+
+ /* Unblock fabric iocbs if they are blocked */
+ clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
+ del_timer_sync(&phba->fabric_block_timer);
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
+ lpfc_linkup_port(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_clear_la(phba, phba->pport);
return 0;
}
* as the completion routine when the command is
* handed off to the SLI layer.
*/
-void
-lpfc_mbx_cmpl_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+static void
+lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli;
- MAILBOX_t *mb;
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_sli *psli = &phba->sli;
+ MAILBOX_t *mb = &pmb->mb;
uint32_t control;
- psli = &phba->sli;
- mb = &pmb->mb;
/* Since we don't do discovery right now, turn these off here */
psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
/* Check for error */
if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
/* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
- lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
- "%d:0320 CLEAR_LA mbxStatus error x%x hba "
- "state x%x\n",
- phba->brd_no, mb->mbxStatus, phba->hba_state);
-
- phba->hba_state = LPFC_HBA_ERROR;
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0320 CLEAR_LA mbxStatus error x%x hba "
+ "state x%x\n",
+ mb->mbxStatus, vport->port_state);
+ phba->link_state = LPFC_HBA_ERROR;
goto out;
}
- if (phba->fc_flag & FC_ABORT_DISCOVERY)
- goto out;
-
- phba->num_disc_nodes = 0;
- /* go thru NPR list and issue ELS PLOGIs */
- if (phba->fc_npr_cnt) {
- lpfc_els_disc_plogi(phba);
- }
+ if (vport->port_type == LPFC_PHYSICAL_PORT)
+ phba->link_state = LPFC_HBA_READY;
- if (!phba->num_disc_nodes) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_NDISC_ACTIVE;
- spin_unlock_irq(phba->host->host_lock);
- }
-
- phba->hba_state = LPFC_HBA_READY;
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_PROCESS_LA;
+ control = readl(phba->HCregaddr);
+ control |= HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(&phba->hbalock);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
out:
/* Device Discovery completes */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_DISCOVERY,
- "%d:0225 Device Discovery completes\n",
- phba->brd_no);
-
- mempool_free( pmb, phba->mbox_mem_pool);
-
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_ABORT_DISCOVERY;
- if (phba->fc_flag & FC_ESTABLISH_LINK) {
- phba->fc_flag &= ~FC_ESTABLISH_LINK;
- }
- spin_unlock_irq(phba->host->host_lock);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0225 Device Discovery completes\n");
+ mempool_free(pmb, phba->mbox_mem_pool);
- del_timer_sync(&phba->fc_estabtmo);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_ABORT_DISCOVERY;
+ spin_unlock_irq(shost->host_lock);
- lpfc_can_disctmo(phba);
+ lpfc_can_disctmo(vport);
/* turn on Link Attention interrupts */
- spin_lock_irq(phba->host->host_lock);
+
+ spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
return;
}
+
static void
lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli = &phba->sli;
- int rc;
+ struct lpfc_vport *vport = pmb->vport;
if (pmb->mb.mbxStatus)
goto out;
mempool_free(pmb, phba->mbox_mem_pool);
if (phba->fc_topology == TOPOLOGY_LOOP &&
- phba->fc_flag & FC_PUBLIC_LOOP &&
- !(phba->fc_flag & FC_LBIT)) {
+ vport->fc_flag & FC_PUBLIC_LOOP &&
+ !(vport->fc_flag & FC_LBIT)) {
/* Need to wait for FAN - use discovery timer
- * for timeout. hba_state is identically
+ * for timeout. port_state is identically
* LPFC_LOCAL_CFG_LINK while waiting for FAN
*/
- lpfc_set_disctmo(phba);
+ lpfc_set_disctmo(vport);
return;
- }
+ }
- /* Start discovery by sending a FLOGI. hba_state is identically
+ /* Start discovery by sending a FLOGI. port_state is identically
* LPFC_FLOGI while waiting for FLOGI cmpl
*/
- phba->hba_state = LPFC_FLOGI;
- lpfc_set_disctmo(phba);
- lpfc_initial_flogi(phba);
+ if (vport->port_state != LPFC_FLOGI) {
+ lpfc_initial_flogi(vport);
+ }
return;
out:
- lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
- "%d:0306 CONFIG_LINK mbxStatus error x%x "
- "HBA state x%x\n",
- phba->brd_no, pmb->mb.mbxStatus, phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0306 CONFIG_LINK mbxStatus error x%x "
+ "HBA state x%x\n",
+ pmb->mb.mbxStatus, vport->port_state);
+ mempool_free(pmb, phba->mbox_mem_pool);
lpfc_linkdown(phba);
- phba->hba_state = LPFC_HBA_ERROR;
-
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0200 CONFIG_LINK bad hba state x%x\n",
- phba->brd_no, phba->hba_state);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0200 CONFIG_LINK bad hba state x%x\n",
+ vport->port_state);
- lpfc_clear_la(phba, pmb);
- pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
- rc = lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED) {
- mempool_free(pmb, phba->mbox_mem_pool);
- lpfc_disc_flush_list(phba);
- psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
- phba->hba_state = LPFC_HBA_READY;
- }
+ lpfc_issue_clear_la(phba, vport);
return;
}
static void
-lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli = &phba->sli;
MAILBOX_t *mb = &pmb->mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
+ struct lpfc_vport *vport = pmb->vport;
/* Check for error */
if (mb->mbxStatus) {
/* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
- lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
- "%d:0319 READ_SPARAM mbxStatus error x%x "
- "hba state x%x>\n",
- phba->brd_no, mb->mbxStatus, phba->hba_state);
-
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0319 READ_SPARAM mbxStatus error x%x "
+ "hba state x%x>\n",
+ mb->mbxStatus, vport->port_state);
lpfc_linkdown(phba);
- phba->hba_state = LPFC_HBA_ERROR;
goto out;
}
- memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
+ memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
sizeof (struct serv_parm));
if (phba->cfg_soft_wwnn)
- u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
+ 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, phba->fc_sparam.portName.u.wwn);
- memcpy((uint8_t *) & phba->fc_nodename,
- (uint8_t *) & phba->fc_sparam.nodeName,
- sizeof (struct lpfc_name));
- memcpy((uint8_t *) & phba->fc_portname,
- (uint8_t *) & phba->fc_sparam.portName,
- sizeof (struct lpfc_name));
+ u64_to_wwn(phba->cfg_soft_wwpn,
+ vport->fc_sparam.portName.u.wwn);
+ memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
+ sizeof(vport->fc_nodename));
+ memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
+ sizeof(vport->fc_portname));
+ if (vport->port_type == LPFC_PHYSICAL_PORT) {
+ memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
+ memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
+ }
+
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
+ mempool_free(pmb, phba->mbox_mem_pool);
return;
out:
pmb->context1 = NULL;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- if (phba->hba_state != LPFC_CLEAR_LA) {
- lpfc_clear_la(phba, pmb);
- pmb->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
- if (lpfc_sli_issue_mbox(phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB))
- == MBX_NOT_FINISHED) {
- mempool_free( pmb, phba->mbox_mem_pool);
- lpfc_disc_flush_list(phba);
- psli->ring[(psli->extra_ring)].flag &=
- ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->fcp_ring)].flag &=
- ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->next_ring)].flag &=
- ~LPFC_STOP_IOCB_EVENT;
- phba->hba_state = LPFC_HBA_READY;
- }
- } else {
- mempool_free( pmb, phba->mbox_mem_pool);
- }
+ lpfc_issue_clear_la(phba, vport);
+ mempool_free(pmb, phba->mbox_mem_pool);
return;
}
static void
lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
{
- int i;
+ struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
+ int i;
struct lpfc_dmabuf *mp;
int rc;
sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
switch (la->UlnkSpeed) {
- case LA_1GHZ_LINK:
- phba->fc_linkspeed = LA_1GHZ_LINK;
- break;
- case LA_2GHZ_LINK:
- phba->fc_linkspeed = LA_2GHZ_LINK;
- break;
- case LA_4GHZ_LINK:
- phba->fc_linkspeed = LA_4GHZ_LINK;
- break;
- default:
- phba->fc_linkspeed = LA_UNKNW_LINK;
- break;
+ case LA_1GHZ_LINK:
+ phba->fc_linkspeed = LA_1GHZ_LINK;
+ break;
+ case LA_2GHZ_LINK:
+ phba->fc_linkspeed = LA_2GHZ_LINK;
+ break;
+ case LA_4GHZ_LINK:
+ phba->fc_linkspeed = LA_4GHZ_LINK;
+ break;
+ case LA_8GHZ_LINK:
+ phba->fc_linkspeed = LA_8GHZ_LINK;
+ break;
+ default:
+ phba->fc_linkspeed = LA_UNKNW_LINK;
+ break;
}
phba->fc_topology = la->topology;
+ phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
if (phba->fc_topology == TOPOLOGY_LOOP) {
- /* Get Loop Map information */
+ phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
+ if (phba->cfg_enable_npiv)
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1309 Link Up Event npiv not supported in loop "
+ "topology\n");
+ /* Get Loop Map information */
if (la->il)
- phba->fc_flag |= FC_LBIT;
+ vport->fc_flag |= FC_LBIT;
- phba->fc_myDID = la->granted_AL_PA;
+ vport->fc_myDID = la->granted_AL_PA;
i = la->un.lilpBde64.tus.f.bdeSize;
if (i == 0) {
phba->alpa_map[0] = 0;
} else {
- if (phba->cfg_log_verbose & LOG_LINK_EVENT) {
+ if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
int numalpa, j, k;
union {
uint8_t pamap[16];
}
/* Link Up Event ALPA map */
lpfc_printf_log(phba,
- KERN_WARNING,
- LOG_LINK_EVENT,
- "%d:1304 Link Up Event "
- "ALPA map Data: x%x "
- "x%x x%x x%x\n",
- phba->brd_no,
- un.pa.wd1, un.pa.wd2,
- un.pa.wd3, un.pa.wd4);
+ KERN_WARNING,
+ LOG_LINK_EVENT,
+ "1304 Link Up Event "
+ "ALPA map Data: x%x "
+ "x%x x%x x%x\n",
+ un.pa.wd1, un.pa.wd2,
+ un.pa.wd3, un.pa.wd4);
}
}
}
} else {
- phba->fc_myDID = phba->fc_pref_DID;
- phba->fc_flag |= FC_LBIT;
+ if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
+ if (phba->max_vpi && phba->cfg_enable_npiv &&
+ (phba->sli_rev == 3))
+ phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
+ }
+ vport->fc_myDID = phba->fc_pref_DID;
+ vport->fc_flag |= FC_LBIT;
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
lpfc_linkup(phba);
if (sparam_mbox) {
- lpfc_read_sparam(phba, sparam_mbox);
+ lpfc_read_sparam(phba, sparam_mbox, 0);
+ sparam_mbox->vport = vport;
sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
- rc = lpfc_sli_issue_mbox(phba, sparam_mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
+ rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
mempool_free(sparam_mbox, phba->mbox_mem_pool);
if (cfglink_mbox)
mempool_free(cfglink_mbox, phba->mbox_mem_pool);
- return;
+ goto out;
}
}
if (cfglink_mbox) {
- phba->hba_state = LPFC_LOCAL_CFG_LINK;
+ vport->port_state = LPFC_LOCAL_CFG_LINK;
lpfc_config_link(phba, cfglink_mbox);
+ cfglink_mbox->vport = vport;
cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
- rc = lpfc_sli_issue_mbox(phba, cfglink_mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED)
- mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+ rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
+ if (rc != MBX_NOT_FINISHED)
+ return;
+ mempool_free(cfglink_mbox, phba->mbox_mem_pool);
}
+out:
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
+ vport->port_state, sparam_mbox, cfglink_mbox);
+ lpfc_issue_clear_la(phba, vport);
+ return;
}
static void
-lpfc_mbx_issue_link_down(struct lpfc_hba *phba) {
+lpfc_enable_la(struct lpfc_hba *phba)
+{
uint32_t control;
struct lpfc_sli *psli = &phba->sli;
-
- lpfc_linkdown(phba);
-
- /* turn on Link Attention interrupts - no CLEAR_LA needed */
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
+}
+
+static void
+lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
+{
+ lpfc_linkdown(phba);
+ lpfc_enable_la(phba);
+ /* turn on Link Attention interrupts - no CLEAR_LA needed */
}
+
/*
* This routine handles processing a READ_LA mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* handed off to the SLI layer.
*/
void
-lpfc_mbx_cmpl_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
READ_LA_VAR *la;
MAILBOX_t *mb = &pmb->mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ /* Unblock ELS traffic */
+ phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
/* Check for error */
if (mb->mbxStatus) {
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_LINK_EVENT,
- "%d:1307 READ_LA mbox error x%x state x%x\n",
- phba->brd_no,
- mb->mbxStatus, phba->hba_state);
+ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
+ "1307 READ_LA mbox error x%x state x%x\n",
+ mb->mbxStatus, vport->port_state);
lpfc_mbx_issue_link_down(phba);
- phba->hba_state = LPFC_HBA_ERROR;
+ phba->link_state = LPFC_HBA_ERROR;
goto lpfc_mbx_cmpl_read_la_free_mbuf;
}
memcpy(&phba->alpa_map[0], mp->virt, 128);
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(shost->host_lock);
if (la->pb)
- phba->fc_flag |= FC_BYPASSED_MODE;
+ vport->fc_flag |= FC_BYPASSED_MODE;
else
- phba->fc_flag &= ~FC_BYPASSED_MODE;
- spin_unlock_irq(phba->host->host_lock);
+ vport->fc_flag &= ~FC_BYPASSED_MODE;
+ spin_unlock_irq(shost->host_lock);
if (((phba->fc_eventTag + 1) < la->eventTag) ||
- (phba->fc_eventTag == la->eventTag)) {
+ (phba->fc_eventTag == la->eventTag)) {
phba->fc_stat.LinkMultiEvent++;
- if (la->attType == AT_LINK_UP) {
+ if (la->attType == AT_LINK_UP)
if (phba->fc_eventTag != 0)
lpfc_linkdown(phba);
- }
}
phba->fc_eventTag = la->eventTag;
+ if (la->mm)
+ phba->sli.sli_flag |= LPFC_MENLO_MAINT;
+ else
+ phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
- if (la->attType == AT_LINK_UP) {
+ if (la->attType == AT_LINK_UP && (!la->mm)) {
phba->fc_stat.LinkUp++;
- lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
- "%d:1303 Link Up Event x%x received "
- "Data: x%x x%x x%x x%x\n",
- phba->brd_no, la->eventTag, phba->fc_eventTag,
- la->granted_AL_PA, la->UlnkSpeed,
- phba->alpa_map[0]);
+ if (phba->link_flag & LS_LOOPBACK_MODE) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1306 Link Up Event in loop back mode "
+ "x%x received Data: x%x x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ la->granted_AL_PA, la->UlnkSpeed,
+ phba->alpa_map[0]);
+ } else {
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1303 Link Up Event x%x received "
+ "Data: x%x x%x x%x x%x x%x x%x %d\n",
+ la->eventTag, phba->fc_eventTag,
+ la->granted_AL_PA, la->UlnkSpeed,
+ phba->alpa_map[0],
+ la->mm, la->fa,
+ phba->wait_4_mlo_maint_flg);
+ }
lpfc_mbx_process_link_up(phba, la);
- } else {
+ } else if (la->attType == AT_LINK_DOWN) {
phba->fc_stat.LinkDown++;
- lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
- "%d:1305 Link Down Event x%x received "
+ if (phba->link_flag & LS_LOOPBACK_MODE) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1308 Link Down Event in loop back mode "
+ "x%x received "
"Data: x%x x%x x%x\n",
- phba->brd_no, la->eventTag, phba->fc_eventTag,
- phba->hba_state, phba->fc_flag);
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag);
+ }
+ else {
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1305 Link Down Event x%x received "
+ "Data: x%x x%x x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag,
+ la->mm, la->fa);
+ }
lpfc_mbx_issue_link_down(phba);
}
+ if (la->mm && la->attType == AT_LINK_UP) {
+ if (phba->link_state != LPFC_LINK_DOWN) {
+ phba->fc_stat.LinkDown++;
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1312 Link Down Event x%x received "
+ "Data: x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag);
+ lpfc_mbx_issue_link_down(phba);
+ } else
+ lpfc_enable_la(phba);
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1310 Menlo Maint Mode Link up Event x%x rcvd "
+ "Data: x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag);
+ /*
+ * The cmnd that triggered this will be waiting for this
+ * signal.
+ */
+ /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
+ if (phba->wait_4_mlo_maint_flg) {
+ phba->wait_4_mlo_maint_flg = 0;
+ wake_up_interruptible(&phba->wait_4_mlo_m_q);
+ }
+ }
+
+ if (la->fa) {
+ if (la->mm)
+ lpfc_issue_clear_la(phba, vport);
+ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
+ "1311 fa %d\n", la->fa);
+ }
lpfc_mbx_cmpl_read_la_free_mbuf:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
* handed off to the SLI layer.
*/
void
-lpfc_mbx_cmpl_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli;
- MAILBOX_t *mb;
- struct lpfc_dmabuf *mp;
- struct lpfc_nodelist *ndlp;
-
- psli = &phba->sli;
- mb = &pmb->mb;
-
- ndlp = (struct lpfc_nodelist *) pmb->context2;
- mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_vport *vport = pmb->vport;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
pmb->context1 = NULL;
/* Good status, call state machine */
- lpfc_disc_state_machine(phba, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
+ lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ /* decrement the node reference count held for this callback
+ * function.
+ */
+ lpfc_nlp_put(ndlp);
return;
}
+static void
+lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ MAILBOX_t *mb = &pmb->mb;
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ switch (mb->mbxStatus) {
+ case 0x0011:
+ case 0x0020:
+ case 0x9700:
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
+ mb->mbxStatus);
+ break;
+ }
+ vport->unreg_vpi_cmpl = VPORT_OK;
+ mempool_free(pmb, phba->mbox_mem_pool);
+ /*
+ * This shost reference might have been taken at the beginning of
+ * lpfc_vport_delete()
+ */
+ if (vport->load_flag & FC_UNLOADING)
+ scsi_host_put(shost);
+}
+
+int
+lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return 1;
+
+ lpfc_unreg_vpi(phba, vport->vpi, mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
+ "1800 Could not issue unreg_vpi\n");
+ mempool_free(mbox, phba->mbox_mem_pool);
+ vport->unreg_vpi_cmpl = VPORT_ERROR;
+ return rc;
+ }
+ return 0;
+}
+
+static void
+lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ MAILBOX_t *mb = &pmb->mb;
+
+ switch (mb->mbxStatus) {
+ case 0x0011:
+ case 0x9601:
+ case 0x9602:
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0912 cmpl_reg_vpi, mb status = 0x%x\n",
+ mb->mbxStatus);
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+ spin_unlock_irq(shost->host_lock);
+ vport->fc_myDID = 0;
+ goto out;
+ }
+
+ vport->num_disc_nodes = 0;
+ /* go thru NPR list and issue ELS PLOGIs */
+ if (vport->fc_npr_cnt)
+ lpfc_els_disc_plogi(vport);
+
+ if (!vport->num_disc_nodes) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NDISC_ACTIVE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
+ }
+ vport->port_state = LPFC_VPORT_READY;
+
+out:
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+}
+
/*
* This routine handles processing a Fabric REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* handed off to the SLI layer.
*/
void
-lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli;
- MAILBOX_t *mb;
- struct lpfc_dmabuf *mp;
+ struct lpfc_vport *vport = pmb->vport;
+ MAILBOX_t *mb = &pmb->mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp;
- struct lpfc_nodelist *ndlp_fdmi;
-
-
- psli = &phba->sli;
- mb = &pmb->mb;
+ struct lpfc_vport **vports;
+ int i;
ndlp = (struct lpfc_nodelist *) pmb->context2;
- mp = (struct lpfc_dmabuf *) (pmb->context1);
-
+ pmb->context1 = NULL;
+ pmb->context2 = NULL;
if (mb->mbxStatus) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
- mempool_free( ndlp, phba->nlp_mem_pool);
+ mempool_free(pmb, phba->mbox_mem_pool);
- /* FLOGI failed, so just use loop map to make discovery list */
- lpfc_disc_list_loopmap(phba);
+ if (phba->fc_topology == TOPOLOGY_LOOP) {
+ /* FLOGI failed, use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
- /* Start discovery */
- lpfc_disc_start(phba);
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ /* Decrement the reference count to ndlp after the
+ * reference to the ndlp are done.
+ */
+ lpfc_nlp_put(ndlp);
+ return;
+ }
+
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0258 Register Fabric login error: 0x%x\n",
+ mb->mbxStatus);
+ /* Decrement the reference count to ndlp after the reference
+ * to the ndlp are done.
+ */
+ lpfc_nlp_put(ndlp);
return;
}
- pmb->context1 = NULL;
-
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_type |= NLP_FABRIC;
- ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
-
- if (phba->hba_state == LPFC_FABRIC_CFG_LINK) {
- /* This NPort has been assigned an NPort_ID by the fabric as a
- * result of the completed fabric login. Issue a State Change
- * Registration (SCR) ELS request to the fabric controller
- * (SCR_DID) so that this NPort gets RSCN events from the
- * fabric.
- */
- lpfc_issue_els_scr(phba, SCR_DID, 0);
-
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
- if (!ndlp) {
- /* Allocate a new node instance. If the pool is empty,
- * start the discovery process and skip the Nameserver
- * login process. This is attempted again later on.
- * Otherwise, issue a Port Login (PLOGI) to NameServer.
- */
- ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
- if (!ndlp) {
- lpfc_disc_start(phba);
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
- return;
- } else {
- lpfc_nlp_init(phba, ndlp, NameServer_DID);
- ndlp->nlp_type |= NLP_FABRIC;
- }
- }
- ndlp->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST);
- lpfc_issue_els_plogi(phba, NameServer_DID, 0);
- if (phba->cfg_fdmi_on) {
- ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
- GFP_KERNEL);
- if (ndlp_fdmi) {
- lpfc_nlp_init(phba, ndlp_fdmi, FDMI_DID);
- ndlp_fdmi->nlp_type |= NLP_FABRIC;
- ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE;
- lpfc_issue_els_plogi(phba, FDMI_DID, 0);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+
+ if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0;
+ i <= phba->max_vpi && vports[i] != NULL;
+ i++) {
+ if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
+ continue;
+ if (phba->fc_topology == TOPOLOGY_LOOP) {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_LINKDOWN);
+ continue;
+ }
+ if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
+ lpfc_initial_fdisc(vports[i]);
+ else {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_NO_FABRIC_SUPP);
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_ELS,
+ "0259 No NPIV "
+ "Fabric support\n");
+ }
}
- }
+ lpfc_destroy_vport_work_array(phba, vports);
+ lpfc_do_scr_ns_plogi(phba, vport);
}
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* Drop the reference count from the mbox at the end after
+ * all the current reference to the ndlp have been done.
+ */
+ lpfc_nlp_put(ndlp);
return;
}
* handed off to the SLI layer.
*/
void
-lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli;
- MAILBOX_t *mb;
- struct lpfc_dmabuf *mp;
- struct lpfc_nodelist *ndlp;
-
- psli = &phba->sli;
- mb = &pmb->mb;
-
- ndlp = (struct lpfc_nodelist *) pmb->context2;
- mp = (struct lpfc_dmabuf *) (pmb->context1);
+ MAILBOX_t *mb = &pmb->mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
+ struct lpfc_vport *vport = pmb->vport;
if (mb->mbxStatus) {
+out:
+ /* decrement the node reference count held for this
+ * callback function.
+ */
+ lpfc_nlp_put(ndlp);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+ mempool_free(pmb, phba->mbox_mem_pool);
- /* RegLogin failed, so just use loop map to make discovery
- list */
- lpfc_disc_list_loopmap(phba);
+ /* If no other thread is using the ndlp, free it */
+ lpfc_nlp_not_used(ndlp);
- /* Start discovery */
- lpfc_disc_start(phba);
+ if (phba->fc_topology == TOPOLOGY_LOOP) {
+ /*
+ * RegLogin failed, use loop map to make discovery
+ * list
+ */
+ lpfc_disc_list_loopmap(vport);
+
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ return;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0260 Register NameServer error: 0x%x\n",
+ mb->mbxStatus);
return;
}
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_type |= NLP_FABRIC;
- ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+
+ if (vport->port_state < LPFC_VPORT_READY) {
+ /* Link up discovery requires Fabric registration. */
+ lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
+ lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
+ lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
+ lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
+ lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
- if (phba->hba_state < LPFC_HBA_READY) {
- /* Link up discovery requires Fabrib registration. */
- lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RNN_ID);
- lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RSNN_NN);
- lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFT_ID);
- lpfc_ns_cmd(phba, ndlp, SLI_CTNS_RFF_ID);
+ /* Issue SCR just before NameServer GID_FT Query */
+ lpfc_issue_els_scr(vport, SCR_DID, 0);
}
- phba->fc_ns_retry = 0;
+ vport->fc_ns_retry = 0;
/* Good status, issue CT Request to NameServer */
- if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT)) {
+ if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
/* Cannot issue NameServer Query, so finish up discovery */
- lpfc_disc_start(phba);
+ goto out;
}
+ /* decrement the node reference count held for this
+ * callback function.
+ */
+ lpfc_nlp_put(ndlp);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
+ mempool_free(pmb, phba->mbox_mem_pool);
return;
}
static void
-lpfc_register_remote_port(struct lpfc_hba * phba,
- struct lpfc_nodelist * ndlp)
+lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
- struct fc_rport *rport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct fc_rport *rport;
struct lpfc_rport_data *rdata;
struct fc_rport_identifiers rport_ids;
+ struct lpfc_hba *phba = vport->phba;
/* Remote port has reappeared. Re-register w/ FC transport */
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
rport_ids.port_id = ndlp->nlp_DID;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
- ndlp->rport = rport = fc_remote_port_add(phba->host, 0, &rport_ids);
- if (!rport) {
+ /*
+ * We leave our node pointer in rport->dd_data when we unregister a
+ * FCP target port. But fc_remote_port_add zeros the space to which
+ * rport->dd_data points. So, if we're reusing a previously
+ * registered port, drop the reference that we took the last time we
+ * registered the port.
+ */
+ if (ndlp->rport && ndlp->rport->dd_data &&
+ ((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
+ lpfc_nlp_put(ndlp);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport add: did:x%x flg:x%x type x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
+
+ ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
+ if (!rport || !get_device(&rport->dev)) {
dev_printk(KERN_WARNING, &phba->pcidev->dev,
"Warning: fc_remote_port_add failed\n");
return;
rport->maxframe_size = ndlp->nlp_maxframe;
rport->supported_classes = ndlp->nlp_class_sup;
rdata = rport->dd_data;
- rdata->pnode = ndlp;
+ rdata->pnode = lpfc_nlp_get(ndlp);
if (ndlp->nlp_type & NLP_FCP_TARGET)
rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
fc_remote_port_rolechg(rport, rport_ids.roles);
if ((rport->scsi_target_id != -1) &&
- (rport->scsi_target_id < LPFC_MAX_TARGET)) {
+ (rport->scsi_target_id < LPFC_MAX_TARGET)) {
ndlp->nlp_sid = rport->scsi_target_id;
}
-
return;
}
static void
-lpfc_unregister_remote_port(struct lpfc_hba * phba,
- struct lpfc_nodelist * ndlp)
+lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
{
struct fc_rport *rport = ndlp->rport;
- struct lpfc_rport_data *rdata = rport->dd_data;
- if (rport->scsi_target_id == -1) {
- ndlp->rport = NULL;
- rdata->pnode = NULL;
- }
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
+ "rport delete: did:x%x flg:x%x type x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
fc_remote_port_delete(rport);
return;
}
-int
-lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
+static void
+lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
{
- enum { none, unmapped, mapped } rport_add = none, rport_del = none;
- struct lpfc_sli *psli;
-
- psli = &phba->sli;
- /* Sanity check to ensure we are not moving to / from the same list */
- if ((nlp->nlp_flag & NLP_LIST_MASK) == list)
- if (list != NLP_NO_LIST)
- return 0;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
- spin_lock_irq(phba->host->host_lock);
- switch (nlp->nlp_flag & NLP_LIST_MASK) {
- case NLP_NO_LIST: /* Not on any list */
+ spin_lock_irq(shost->host_lock);
+ switch (state) {
+ case NLP_STE_UNUSED_NODE:
+ vport->fc_unused_cnt += count;
break;
- case NLP_UNUSED_LIST:
- phba->fc_unused_cnt--;
- list_del(&nlp->nlp_listp);
+ case NLP_STE_PLOGI_ISSUE:
+ vport->fc_plogi_cnt += count;
break;
- case NLP_PLOGI_LIST:
- phba->fc_plogi_cnt--;
- list_del(&nlp->nlp_listp);
+ case NLP_STE_ADISC_ISSUE:
+ vport->fc_adisc_cnt += count;
break;
- case NLP_ADISC_LIST:
- phba->fc_adisc_cnt--;
- list_del(&nlp->nlp_listp);
+ case NLP_STE_REG_LOGIN_ISSUE:
+ vport->fc_reglogin_cnt += count;
break;
- case NLP_REGLOGIN_LIST:
- phba->fc_reglogin_cnt--;
- list_del(&nlp->nlp_listp);
+ case NLP_STE_PRLI_ISSUE:
+ vport->fc_prli_cnt += count;
break;
- case NLP_PRLI_LIST:
- phba->fc_prli_cnt--;
- list_del(&nlp->nlp_listp);
+ case NLP_STE_UNMAPPED_NODE:
+ vport->fc_unmap_cnt += count;
break;
- case NLP_UNMAPPED_LIST:
- phba->fc_unmap_cnt--;
- list_del(&nlp->nlp_listp);
- nlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
- nlp->nlp_type &= ~NLP_FC_NODE;
- phba->nport_event_cnt++;
- if (nlp->rport)
- rport_del = unmapped;
+ case NLP_STE_MAPPED_NODE:
+ vport->fc_map_cnt += count;
break;
- case NLP_MAPPED_LIST:
- phba->fc_map_cnt--;
- list_del(&nlp->nlp_listp);
- phba->nport_event_cnt++;
- if (nlp->rport)
- rport_del = mapped;
- break;
- case NLP_NPR_LIST:
- phba->fc_npr_cnt--;
- list_del(&nlp->nlp_listp);
- /* Stop delay tmo if taking node off NPR list */
- if ((nlp->nlp_flag & NLP_DELAY_TMO) &&
- (list != NLP_NPR_LIST)) {
- spin_unlock_irq(phba->host->host_lock);
- lpfc_cancel_retry_delay_tmo(phba, nlp);
- spin_lock_irq(phba->host->host_lock);
- }
+ case NLP_STE_NPR_NODE:
+ vport->fc_npr_cnt += count;
break;
}
+ spin_unlock_irq(shost->host_lock);
+}
- nlp->nlp_flag &= ~NLP_LIST_MASK;
-
- /* Add NPort <did> to <num> list */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_NODE,
- "%d:0904 Add NPort x%x to %d list Data: x%x\n",
- phba->brd_no,
- nlp->nlp_DID, list, nlp->nlp_flag);
+static void
+lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ int old_state, int new_state)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
- switch (list) {
- case NLP_NO_LIST: /* No list, just remove it */
- spin_unlock_irq(phba->host->host_lock);
- lpfc_nlp_remove(phba, nlp);
- spin_lock_irq(phba->host->host_lock);
- /* as node removed - stop further transport calls */
- rport_del = none;
- break;
- case NLP_UNUSED_LIST:
- nlp->nlp_flag |= list;
- /* Put it at the end of the unused list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_unused_list);
- phba->fc_unused_cnt++;
- break;
- case NLP_PLOGI_LIST:
- nlp->nlp_flag |= list;
- /* Put it at the end of the plogi list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_plogi_list);
- phba->fc_plogi_cnt++;
- break;
- case NLP_ADISC_LIST:
- nlp->nlp_flag |= list;
- /* Put it at the end of the adisc list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_adisc_list);
- phba->fc_adisc_cnt++;
- break;
- case NLP_REGLOGIN_LIST:
- nlp->nlp_flag |= list;
- /* Put it at the end of the reglogin list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_reglogin_list);
- phba->fc_reglogin_cnt++;
- break;
- case NLP_PRLI_LIST:
- nlp->nlp_flag |= list;
- /* Put it at the end of the prli list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_prli_list);
- phba->fc_prli_cnt++;
- break;
- case NLP_UNMAPPED_LIST:
- rport_add = unmapped;
- /* ensure all vestiges of "mapped" significance are gone */
- nlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
- nlp->nlp_flag |= list;
- /* Put it at the end of the unmap list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
- phba->fc_unmap_cnt++;
- phba->nport_event_cnt++;
- nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
- nlp->nlp_type |= NLP_FC_NODE;
- break;
- case NLP_MAPPED_LIST:
- rport_add = mapped;
- nlp->nlp_flag |= list;
- /* Put it at the end of the map list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
- phba->fc_map_cnt++;
- phba->nport_event_cnt++;
- nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
- break;
- case NLP_NPR_LIST:
- nlp->nlp_flag |= list;
- /* Put it at the end of the npr list */
- list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
- phba->fc_npr_cnt++;
+ if (new_state == NLP_STE_UNMAPPED_NODE) {
+ ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
+ ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
+ ndlp->nlp_type |= NLP_FC_NODE;
+ }
+ if (new_state == NLP_STE_MAPPED_NODE)
+ ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
+ if (new_state == NLP_STE_NPR_NODE)
+ ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
- nlp->nlp_flag &= ~NLP_RCV_PLOGI;
- break;
- case NLP_JUST_DQ:
- break;
+ /* Transport interface */
+ if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
+ old_state == NLP_STE_UNMAPPED_NODE)) {
+ vport->phba->nport_event_cnt++;
+ lpfc_unregister_remote_port(ndlp);
}
- spin_unlock_irq(phba->host->host_lock);
+ if (new_state == NLP_STE_MAPPED_NODE ||
+ new_state == NLP_STE_UNMAPPED_NODE) {
+ vport->phba->nport_event_cnt++;
+ /*
+ * Tell the fc transport about the port, if we haven't
+ * already. If we have, and it's a scsi entity, be
+ * sure to unblock any attached scsi devices
+ */
+ lpfc_register_remote_port(vport, ndlp);
+ }
+ if ((new_state == NLP_STE_MAPPED_NODE) &&
+ (vport->stat_data_enabled)) {
+ /*
+ * A new target is discovered, if there is no buffer for
+ * statistical data collection allocate buffer.
+ */
+ ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
+ sizeof(struct lpfc_scsicmd_bkt),
+ GFP_KERNEL);
+ if (!ndlp->lat_data)
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
+ "0286 lpfc_nlp_state_cleanup failed to "
+ "allocate statistical data buffer DID "
+ "0x%x\n", ndlp->nlp_DID);
+ }
/*
- * We make all the calls into the transport after we have
- * moved the node between lists. This so that we don't
- * release the lock while in-between lists.
+ * if we added to Mapped list, but the remote port
+ * registration failed or assigned a target id outside
+ * our presentable range - move the node to the
+ * Unmapped List
*/
+ if (new_state == NLP_STE_MAPPED_NODE &&
+ (!ndlp->rport ||
+ ndlp->rport->scsi_target_id == -1 ||
+ ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ }
+}
- /* Don't upcall midlayer if we're unloading */
- if (!(phba->fc_flag & FC_UNLOADING)) {
- /*
- * We revalidate the rport pointer as the "add" function
- * may have removed the remote port.
- */
- if ((rport_del != none) && nlp->rport)
- lpfc_unregister_remote_port(phba, nlp);
+static char *
+lpfc_nlp_state_name(char *buffer, size_t size, int state)
+{
+ static char *states[] = {
+ [NLP_STE_UNUSED_NODE] = "UNUSED",
+ [NLP_STE_PLOGI_ISSUE] = "PLOGI",
+ [NLP_STE_ADISC_ISSUE] = "ADISC",
+ [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
+ [NLP_STE_PRLI_ISSUE] = "PRLI",
+ [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
+ [NLP_STE_MAPPED_NODE] = "MAPPED",
+ [NLP_STE_NPR_NODE] = "NPR",
+ };
+
+ if (state < NLP_STE_MAX_STATE && states[state])
+ strlcpy(buffer, states[state], size);
+ else
+ snprintf(buffer, size, "unknown (%d)", state);
+ return buffer;
+}
- if (rport_add != none) {
- /*
- * Tell the fc transport about the port, if we haven't
- * already. If we have, and it's a scsi entity, be
- * sure to unblock any attached scsi devices
- */
- if ((!nlp->rport) || (nlp->rport->port_state ==
- FC_PORTSTATE_BLOCKED))
- lpfc_register_remote_port(phba, nlp);
+void
+lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ int state)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ int old_state = ndlp->nlp_state;
+ char name1[16], name2[16];
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0904 NPort state transition x%06x, %s -> %s\n",
+ ndlp->nlp_DID,
+ lpfc_nlp_state_name(name1, sizeof(name1), old_state),
+ lpfc_nlp_state_name(name2, sizeof(name2), state));
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
+ "node statechg did:x%x old:%d ste:%d",
+ ndlp->nlp_DID, old_state, state);
+
+ if (old_state == NLP_STE_NPR_NODE &&
+ state != NLP_STE_NPR_NODE)
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ if (old_state == NLP_STE_UNMAPPED_NODE) {
+ ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
+ ndlp->nlp_type &= ~NLP_FC_NODE;
+ }
+
+ if (list_empty(&ndlp->nlp_listp)) {
+ spin_lock_irq(shost->host_lock);
+ list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
+ spin_unlock_irq(shost->host_lock);
+ } else if (old_state)
+ lpfc_nlp_counters(vport, old_state, -1);
+
+ ndlp->nlp_state = state;
+ lpfc_nlp_counters(vport, state, 1);
+ lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
+}
- /*
- * if we added to Mapped list, but the remote port
- * registration failed or assigned a target id outside
- * our presentable range - move the node to the
- * Unmapped List
- */
- if ((rport_add == mapped) &&
- ((!nlp->rport) ||
- (nlp->rport->scsi_target_id == -1) ||
- (nlp->rport->scsi_target_id >= LPFC_MAX_TARGET))) {
- nlp->nlp_state = NLP_STE_UNMAPPED_NODE;
- spin_lock_irq(phba->host->host_lock);
- nlp->nlp_flag |= NLP_TGT_NO_SCSIID;
- spin_unlock_irq(phba->host->host_lock);
- lpfc_nlp_list(phba, nlp, NLP_UNMAPPED_LIST);
- }
- }
+void
+lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if (list_empty(&ndlp->nlp_listp)) {
+ spin_lock_irq(shost->host_lock);
+ list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
+ spin_unlock_irq(shost->host_lock);
}
- return 0;
+}
+
+void
+lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
+ lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
+ spin_lock_irq(shost->host_lock);
+ list_del_init(&ndlp->nlp_listp);
+ spin_unlock_irq(shost->host_lock);
+ lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
+ NLP_STE_UNUSED_NODE);
+}
+
+static void
+lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
+ lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
+ lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
+ NLP_STE_UNUSED_NODE);
+}
+/**
+ * lpfc_initialize_node: Initialize all fields of node object.
+ * @vport: Pointer to Virtual Port object.
+ * @ndlp: Pointer to FC node object.
+ * @did: FC_ID of the node.
+ * This function is always called when node object need to
+ * be initialized. It initializes all the fields of the node
+ * object.
+ **/
+static inline void
+lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ uint32_t did)
+{
+ INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
+ INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
+ init_timer(&ndlp->nlp_delayfunc);
+ ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
+ ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
+ ndlp->nlp_DID = did;
+ ndlp->vport = vport;
+ ndlp->nlp_sid = NLP_NO_SID;
+ kref_init(&ndlp->kref);
+ NLP_INT_NODE_ACT(ndlp);
+ atomic_set(&ndlp->cmd_pending, 0);
+ ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
+}
+
+struct lpfc_nodelist *
+lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ int state)
+{
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t did;
+ unsigned long flags;
+
+ if (!ndlp)
+ return NULL;
+
+ spin_lock_irqsave(&phba->ndlp_lock, flags);
+ /* The ndlp should not be in memory free mode */
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0277 lpfc_enable_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ return NULL;
+ }
+ /* The ndlp should not already be in active mode */
+ if (NLP_CHK_NODE_ACT(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0278 lpfc_enable_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ return NULL;
+ }
+
+ /* Keep the original DID */
+ did = ndlp->nlp_DID;
+
+ /* re-initialize ndlp except of ndlp linked list pointer */
+ memset((((char *)ndlp) + sizeof (struct list_head)), 0,
+ sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
+ lpfc_initialize_node(vport, ndlp, did);
+
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+
+ if (state != NLP_STE_UNUSED_NODE)
+ lpfc_nlp_set_state(vport, ndlp, state);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
+ "node enable: did:x%x",
+ ndlp->nlp_DID, 0, 0);
+ return ndlp;
+}
+
+void
+lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ /*
+ * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
+ * be used if we wish to issue the "last" lpfc_nlp_put() to remove
+ * the ndlp from the vport. The ndlp marked as UNUSED on the list
+ * until ALL other outstanding threads have completed. We check
+ * that the ndlp not already in the UNUSED state before we proceed.
+ */
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ return;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+ lpfc_nlp_put(ndlp);
+ return;
}
/*
* Start / ReStart rescue timer for Discovery / RSCN handling
*/
void
-lpfc_set_disctmo(struct lpfc_hba * phba)
+lpfc_set_disctmo(struct lpfc_vport *vport)
{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
uint32_t tmo;
- if (phba->hba_state == LPFC_LOCAL_CFG_LINK) {
- /* For FAN, timeout should be greater then edtov */
+ if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
+ /* For FAN, timeout should be greater than edtov */
tmo = (((phba->fc_edtov + 999) / 1000) + 1);
} else {
- /* Normal discovery timeout should be > then ELS/CT timeout
+ /* Normal discovery timeout should be > than ELS/CT timeout
* FC spec states we need 3 * ratov for CT requests
*/
tmo = ((phba->fc_ratov * 3) + 3);
}
- mod_timer(&phba->fc_disctmo, jiffies + HZ * tmo);
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_DISC_TMO;
- spin_unlock_irq(phba->host->host_lock);
+
+ if (!timer_pending(&vport->fc_disctmo)) {
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "set disc timer: tmo:x%x state:x%x flg:x%x",
+ tmo, vport->port_state, vport->fc_flag);
+ }
+
+ mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_DISC_TMO;
+ spin_unlock_irq(shost->host_lock);
/* Start Discovery Timer state <hba_state> */
- lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
- "%d:0247 Start Discovery Timer state x%x "
- "Data: x%x x%lx x%x x%x\n",
- phba->brd_no,
- phba->hba_state, tmo, (unsigned long)&phba->fc_disctmo,
- phba->fc_plogi_cnt, phba->fc_adisc_cnt);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0247 Start Discovery Timer state x%x "
+ "Data: x%x x%lx x%x x%x\n",
+ vport->port_state, tmo,
+ (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
+ vport->fc_adisc_cnt);
return;
}
* Cancel rescue timer for Discovery / RSCN handling
*/
int
-lpfc_can_disctmo(struct lpfc_hba * phba)
+lpfc_can_disctmo(struct lpfc_vport *vport)
{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ unsigned long iflags;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "can disc timer: state:x%x rtry:x%x flg:x%x",
+ vport->port_state, vport->fc_ns_retry, vport->fc_flag);
+
/* Turn off discovery timer if its running */
- if (phba->fc_flag & FC_DISC_TMO) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_DISC_TMO;
- spin_unlock_irq(phba->host->host_lock);
- del_timer_sync(&phba->fc_disctmo);
- phba->work_hba_events &= ~WORKER_DISC_TMO;
+ if (vport->fc_flag & FC_DISC_TMO) {
+ spin_lock_irqsave(shost->host_lock, iflags);
+ vport->fc_flag &= ~FC_DISC_TMO;
+ spin_unlock_irqrestore(shost->host_lock, iflags);
+ del_timer_sync(&vport->fc_disctmo);
+ spin_lock_irqsave(&vport->work_port_lock, iflags);
+ vport->work_port_events &= ~WORKER_DISC_TMO;
+ spin_unlock_irqrestore(&vport->work_port_lock, iflags);
}
/* Cancel Discovery Timer state <hba_state> */
- lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
- "%d:0248 Cancel Discovery Timer state x%x "
- "Data: x%x x%x x%x\n",
- phba->brd_no, phba->hba_state, phba->fc_flag,
- phba->fc_plogi_cnt, phba->fc_adisc_cnt);
-
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0248 Cancel Discovery Timer state x%x "
+ "Data: x%x x%x x%x\n",
+ vport->port_state, vport->fc_flag,
+ vport->fc_plogi_cnt, vport->fc_adisc_cnt);
return 0;
}
* Return true if iocb matches the specified nport
*/
int
-lpfc_check_sli_ndlp(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * iocb, struct lpfc_nodelist * ndlp)
+lpfc_check_sli_ndlp(struct lpfc_hba *phba,
+ struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq *iocb,
+ struct lpfc_nodelist *ndlp)
{
- struct lpfc_sli *psli;
- IOCB_t *icmd;
+ struct lpfc_sli *psli = &phba->sli;
+ IOCB_t *icmd = &iocb->iocb;
+ struct lpfc_vport *vport = ndlp->vport;
+
+ if (iocb->vport != vport)
+ return 0;
- psli = &phba->sli;
- icmd = &iocb->iocb;
if (pring->ringno == LPFC_ELS_RING) {
switch (icmd->ulpCommand) {
case CMD_GEN_REQUEST64_CR:
} else if (pring->ringno == psli->fcp_ring) {
/* Skip match check if waiting to relogin to FCP target */
if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
- (ndlp->nlp_flag & NLP_DELAY_TMO)) {
+ (ndlp->nlp_flag & NLP_DELAY_TMO)) {
return 0;
}
if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
* associated with nlp_rpi in the LPFC_NODELIST entry.
*/
static int
-lpfc_no_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
+lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_sli *psli;
IOCB_t *icmd;
uint32_t rpi, i;
+ lpfc_fabric_abort_nport(ndlp);
+
/*
* Everything that matches on txcmplq will be returned
* by firmware with a no rpi error.
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
- list) {
+ list) {
/*
* Check to see if iocb matches the nport we are
* looking for
*/
- if ((lpfc_check_sli_ndlp
- (phba, pring, iocb, ndlp))) {
+ if ((lpfc_check_sli_ndlp(phba, pring, iocb,
+ ndlp))) {
/* It matches, so deque and call compl
with an error */
list_move_tail(&iocb->list,
pring->txq_cnt--;
}
}
- spin_unlock_irq(phba->host->host_lock);
-
+ spin_unlock_irq(&phba->hbalock);
}
}
while (!list_empty(&completions)) {
iocb = list_get_first(&completions, struct lpfc_iocbq, list);
- list_del(&iocb->list);
+ list_del_init(&iocb->list);
- if (iocb->iocb_cmpl) {
+ if (!iocb->iocb_cmpl)
+ lpfc_sli_release_iocbq(phba, iocb);
+ else {
icmd = &iocb->iocb;
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- } else
- lpfc_sli_release_iocbq(phba, iocb);
+ (iocb->iocb_cmpl)(phba, iocb, iocb);
+ }
}
return 0;
* we are waiting to PLOGI back to the remote NPort.
*/
int
-lpfc_unreg_rpi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
+lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
- LPFC_MBOXQ_t *mbox;
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
int rc;
if (ndlp->nlp_rpi) {
- if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
- lpfc_unreg_login(phba, ndlp->nlp_rpi, mbox);
- mbox->mbox_cmpl=lpfc_sli_def_mbox_cmpl;
- rc = lpfc_sli_issue_mbox
- (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB));
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
- mempool_free( mbox, phba->mbox_mem_pool);
+ mempool_free(mbox, phba->mbox_mem_pool);
}
lpfc_no_rpi(phba, ndlp);
ndlp->nlp_rpi = 0;
return 1;
}
- return 0;
+ return 0;
+}
+
+void
+lpfc_unreg_all_rpis(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->context1 = NULL;
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ }
+}
+
+void
+lpfc_unreg_default_rpis(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->context1 = NULL;
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
+ "1815 Could not issue "
+ "unreg_did (default rpis)\n");
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ }
}
/*
* so it can be freed.
*/
static int
-lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
+lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
- LPFC_MBOXQ_t *mb;
- LPFC_MBOXQ_t *nextmb;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mb, *nextmb;
struct lpfc_dmabuf *mp;
/* Cleanup node for NPort <nlp_DID> */
- lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
- "%d:0900 Cleanup node for NPort x%x "
- "Data: x%x x%x x%x\n",
- phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
- ndlp->nlp_state, ndlp->nlp_rpi);
-
- lpfc_nlp_list(phba, ndlp, NLP_JUST_DQ);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0900 Cleanup node for NPort x%x "
+ "Data: x%x x%x x%x\n",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ ndlp->nlp_state, ndlp->nlp_rpi);
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0280 lpfc_cleanup_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ lpfc_dequeue_node(vport, ndlp);
+ } else {
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0281 lpfc_cleanup_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ lpfc_disable_node(vport, ndlp);
+ }
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
if ((mb = phba->sli.mbox_active)) {
}
}
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
- (ndlp == (struct lpfc_nodelist *) mb->context2)) {
+ (ndlp == (struct lpfc_nodelist *) mb->context2)) {
mp = (struct lpfc_dmabuf *) (mb->context1);
if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ __lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
list_del(&mb->list);
mempool_free(mb, phba->mbox_mem_pool);
+ /* We shall not invoke the lpfc_nlp_put to decrement
+ * the ndlp reference count as we are in the process
+ * of lpfc_nlp_release.
+ */
}
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
- lpfc_els_abort(phba,ndlp);
- spin_lock_irq(phba->host->host_lock);
+ lpfc_els_abort(phba, ndlp);
+
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(shost->host_lock);
ndlp->nlp_last_elscmd = 0;
del_timer_sync(&ndlp->nlp_delayfunc);
- if (!list_empty(&ndlp->els_retry_evt.evt_listp))
- list_del_init(&ndlp->els_retry_evt.evt_listp);
+ list_del_init(&ndlp->els_retry_evt.evt_listp);
+ list_del_init(&ndlp->dev_loss_evt.evt_listp);
- lpfc_unreg_rpi(phba, ndlp);
+ lpfc_unreg_rpi(vport, ndlp);
return 0;
}
* If we are in the middle of using the nlp in the discovery state
* machine, defer the free till we reach the end of the state machine.
*/
-int
-lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
+static void
+lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_rport_data *rdata;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
- if (ndlp->nlp_flag & NLP_DELAY_TMO) {
- lpfc_cancel_retry_delay_tmo(phba, ndlp);
- }
-
- if (ndlp->nlp_disc_refcnt) {
- spin_lock_irq(phba->host->host_lock);
- ndlp->nlp_flag |= NLP_DELAY_REMOVE;
- spin_unlock_irq(phba->host->host_lock);
- } else {
- lpfc_freenode(phba, ndlp);
-
- if ((ndlp->rport) && !(phba->fc_flag & FC_UNLOADING)) {
- rdata = ndlp->rport->dd_data;
- rdata->pnode = NULL;
- ndlp->rport = NULL;
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
+ /* For this case we need to cleanup the default rpi
+ * allocated by the firmware.
+ */
+ if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
+ != NULL) {
+ rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
+ (uint8_t *) &vport->fc_sparam, mbox, 0);
+ if (rc) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ else {
+ mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
+ mbox->vport = vport;
+ mbox->context2 = NULL;
+ rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ }
}
+ }
+ lpfc_cleanup_node(vport, ndlp);
- mempool_free( ndlp, phba->nlp_mem_pool);
+ /*
+ * We can get here with a non-NULL ndlp->rport because when we
+ * unregister a rport we don't break the rport/node linkage. So if we
+ * do, make sure we don't leaving any dangling pointers behind.
+ */
+ if (ndlp->rport) {
+ rdata = ndlp->rport->dd_data;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
}
- return 0;
}
static int
-lpfc_matchdid(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint32_t did)
+lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ uint32_t did)
{
- D_ID mydid;
- D_ID ndlpdid;
- D_ID matchdid;
+ D_ID mydid, ndlpdid, matchdid;
if (did == Bcast_DID)
return 0;
- if (ndlp->nlp_DID == 0) {
- return 0;
- }
-
/* First check for Direct match */
if (ndlp->nlp_DID == did)
return 1;
/* Next check for area/domain identically equals 0 match */
- mydid.un.word = phba->fc_myDID;
+ mydid.un.word = vport->fc_myDID;
if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
return 0;
}
return 0;
}
-/* Search for a nodelist entry on a specific list */
-struct lpfc_nodelist *
-lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
+/* Search for a nodelist entry */
+static struct lpfc_nodelist *
+__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
struct lpfc_nodelist *ndlp;
- struct list_head *lists[]={&phba->fc_nlpunmap_list,
- &phba->fc_nlpmap_list,
- &phba->fc_plogi_list,
- &phba->fc_adisc_list,
- &phba->fc_reglogin_list,
- &phba->fc_prli_list,
- &phba->fc_npr_list,
- &phba->fc_unused_list};
- uint32_t search[]={NLP_SEARCH_UNMAPPED,
- NLP_SEARCH_MAPPED,
- NLP_SEARCH_PLOGI,
- NLP_SEARCH_ADISC,
- NLP_SEARCH_REGLOGIN,
- NLP_SEARCH_PRLI,
- NLP_SEARCH_NPR,
- NLP_SEARCH_UNUSED};
- int i;
uint32_t data1;
- spin_lock_irq(phba->host->host_lock);
- for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
- if (!(order & search[i]))
- continue;
- list_for_each_entry(ndlp, lists[i], nlp_listp) {
- if (lpfc_matchdid(phba, ndlp, did)) {
- data1 = (((uint32_t) ndlp->nlp_state << 24) |
- ((uint32_t) ndlp->nlp_xri << 16) |
- ((uint32_t) ndlp->nlp_type << 8) |
- ((uint32_t) ndlp->nlp_rpi & 0xff));
- lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
- "%d:0929 FIND node DID "
- " Data: x%p x%x x%x x%x\n",
- phba->brd_no,
- ndlp, ndlp->nlp_DID,
- ndlp->nlp_flag, data1);
- spin_unlock_irq(phba->host->host_lock);
- return ndlp;
- }
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (lpfc_matchdid(vport, ndlp, did)) {
+ data1 = (((uint32_t) ndlp->nlp_state << 24) |
+ ((uint32_t) ndlp->nlp_xri << 16) |
+ ((uint32_t) ndlp->nlp_type << 8) |
+ ((uint32_t) ndlp->nlp_rpi & 0xff));
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0929 FIND node DID "
+ "Data: x%p x%x x%x x%x\n",
+ ndlp, ndlp->nlp_DID,
+ ndlp->nlp_flag, data1);
+ return ndlp;
}
}
- spin_unlock_irq(phba->host->host_lock);
/* FIND node did <did> NOT FOUND */
- lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
- "%d:0932 FIND node did x%x NOT FOUND Data: x%x\n",
- phba->brd_no, did, order);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0932 FIND node did x%x NOT FOUND.\n", did);
return NULL;
}
struct lpfc_nodelist *
-lpfc_setup_disc_node(struct lpfc_hba * phba, uint32_t did)
+lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
- uint32_t flg;
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did);
+ spin_lock_irq(shost->host_lock);
+ ndlp = __lpfc_findnode_did(vport, did);
+ spin_unlock_irq(shost->host_lock);
+ return ndlp;
+}
+
+struct lpfc_nodelist *
+lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+
+ ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
- if ((phba->fc_flag & FC_RSCN_MODE) &&
- ((lpfc_rscn_payload_check(phba, did) == 0)))
+ if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
+ lpfc_rscn_payload_check(vport, did) == 0)
return NULL;
ndlp = (struct lpfc_nodelist *)
- mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
+ mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
+ if (!ndlp)
+ return NULL;
+ lpfc_nlp_init(vport, ndlp, did);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
+ return ndlp;
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
if (!ndlp)
return NULL;
- lpfc_nlp_init(phba, ndlp, did);
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
return ndlp;
}
- if (phba->fc_flag & FC_RSCN_MODE) {
- if (lpfc_rscn_payload_check(phba, did)) {
+
+ if ((vport->fc_flag & FC_RSCN_MODE) &&
+ !(vport->fc_flag & FC_NDISC_ACTIVE)) {
+ if (lpfc_rscn_payload_check(vport, did)) {
+ /* If we've already recieved a PLOGI from this NPort
+ * we don't need to try to discover it again.
+ */
+ if (ndlp->nlp_flag & NLP_RCV_PLOGI)
+ return NULL;
+
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
/* Since this node is marked for discovery,
* delay timeout is not needed.
*/
- if (ndlp->nlp_flag & NLP_DELAY_TMO)
- lpfc_cancel_retry_delay_tmo(phba, ndlp);
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
} else
ndlp = NULL;
} else {
- flg = ndlp->nlp_flag & NLP_LIST_MASK;
- if ((flg == NLP_ADISC_LIST) || (flg == NLP_PLOGI_LIST))
+ /* If we've already recieved a PLOGI from this NPort,
+ * or we are already in the process of discovery on it,
+ * we don't need to try to discover it again.
+ */
+ if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
+ ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
+ ndlp->nlp_flag & NLP_RCV_PLOGI)
return NULL;
- ndlp->nlp_state = NLP_STE_NPR_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
}
return ndlp;
}
/* Build a list of nodes to discover based on the loopmap */
void
-lpfc_disc_list_loopmap(struct lpfc_hba * phba)
+lpfc_disc_list_loopmap(struct lpfc_vport *vport)
{
+ struct lpfc_hba *phba = vport->phba;
int j;
uint32_t alpa, index;
- if (phba->hba_state <= LPFC_LINK_DOWN) {
+ if (!lpfc_is_link_up(phba))
return;
- }
- if (phba->fc_topology != TOPOLOGY_LOOP) {
+
+ if (phba->fc_topology != TOPOLOGY_LOOP)
return;
- }
/* Check for loop map present or not */
if (phba->alpa_map[0]) {
for (j = 1; j <= phba->alpa_map[0]; j++) {
alpa = phba->alpa_map[j];
-
- if (((phba->fc_myDID & 0xff) == alpa) || (alpa == 0)) {
+ if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
continue;
- }
- lpfc_setup_disc_node(phba, alpa);
+ lpfc_setup_disc_node(vport, alpa);
}
} else {
/* No alpamap, so try all alpa's */
/* If cfg_scan_down is set, start from highest
* ALPA (0xef) to lowest (0x1).
*/
- if (phba->cfg_scan_down)
+ if (vport->cfg_scan_down)
index = j;
else
index = FC_MAXLOOP - j - 1;
alpa = lpfcAlpaArray[index];
- if ((phba->fc_myDID & 0xff) == alpa) {
+ if ((vport->fc_myDID & 0xff) == alpa)
continue;
- }
-
- lpfc_setup_disc_node(phba, alpa);
+ lpfc_setup_disc_node(vport, alpa);
}
}
return;
}
-/* Start Link up / RSCN discovery on NPR list */
void
-lpfc_disc_start(struct lpfc_hba * phba)
+lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
- struct lpfc_sli *psli;
LPFC_MBOXQ_t *mbox;
- struct lpfc_nodelist *ndlp, *next_ndlp;
- uint32_t did_changed, num_sent;
- uint32_t clear_la_pending;
- int rc;
-
- psli = &phba->sli;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
+ struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
+ struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
+ int rc;
- if (phba->hba_state <= LPFC_LINK_DOWN) {
+ /*
+ * if it's not a physical port or if we already send
+ * clear_la then don't send it.
+ */
+ if ((phba->link_state >= LPFC_CLEAR_LA) ||
+ (vport->port_type != LPFC_PHYSICAL_PORT))
return;
+
+ /* Link up discovery */
+ if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
+ phba->link_state = LPFC_CLEAR_LA;
+ lpfc_clear_la(phba, mbox);
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
+ mbox->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ lpfc_disc_flush_list(vport);
+ extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
+ fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
+ next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
+ phba->link_state = LPFC_HBA_ERROR;
+ }
+ }
+}
+
+/* Reg_vpi to tell firmware to resume normal operations */
+void
+lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
+{
+ LPFC_MBOXQ_t *regvpimbox;
+
+ regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (regvpimbox) {
+ lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
+ regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
+ regvpimbox->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
+ == MBX_NOT_FINISHED) {
+ mempool_free(regvpimbox, phba->mbox_mem_pool);
+ }
}
- if (phba->hba_state == LPFC_CLEAR_LA)
+}
+
+/* Start Link up / RSCN discovery on NPR nodes */
+void
+lpfc_disc_start(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t num_sent;
+ uint32_t clear_la_pending;
+ int did_changed;
+
+ if (!lpfc_is_link_up(phba))
+ return;
+
+ if (phba->link_state == LPFC_CLEAR_LA)
clear_la_pending = 1;
else
clear_la_pending = 0;
- if (phba->hba_state < LPFC_HBA_READY) {
- phba->hba_state = LPFC_DISC_AUTH;
- }
- lpfc_set_disctmo(phba);
+ if (vport->port_state < LPFC_VPORT_READY)
+ vport->port_state = LPFC_DISC_AUTH;
+
+ lpfc_set_disctmo(vport);
- if (phba->fc_prevDID == phba->fc_myDID) {
+ if (vport->fc_prevDID == vport->fc_myDID)
did_changed = 0;
- } else {
+ else
did_changed = 1;
- }
- phba->fc_prevDID = phba->fc_myDID;
- phba->num_disc_nodes = 0;
+
+ vport->fc_prevDID = vport->fc_myDID;
+ vport->num_disc_nodes = 0;
/* Start Discovery state <hba_state> */
- lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
- "%d:0202 Start Discovery hba state x%x "
- "Data: x%x x%x x%x\n",
- phba->brd_no, phba->hba_state, phba->fc_flag,
- phba->fc_plogi_cnt, phba->fc_adisc_cnt);
-
- /* If our did changed, we MUST do PLOGI */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
- nlp_listp) {
- if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
- if (did_changed) {
- spin_lock_irq(phba->host->host_lock);
- ndlp->nlp_flag &= ~NLP_NPR_ADISC;
- spin_unlock_irq(phba->host->host_lock);
- }
- }
- }
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0202 Start Discovery hba state x%x "
+ "Data: x%x x%x x%x\n",
+ vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
+ vport->fc_adisc_cnt);
/* First do ADISCs - if any */
- num_sent = lpfc_els_disc_adisc(phba);
+ num_sent = lpfc_els_disc_adisc(vport);
if (num_sent)
return;
- if ((phba->hba_state < LPFC_HBA_READY) && (!clear_la_pending)) {
+ /*
+ * For SLI3, cmpl_reg_vpi will set port_state to READY, and
+ * continue discovery.
+ */
+ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
+ !(vport->fc_flag & FC_PT2PT) &&
+ !(vport->fc_flag & FC_RSCN_MODE)) {
+ lpfc_issue_reg_vpi(phba, vport);
+ return;
+ }
+
+ /*
+ * For SLI2, we need to set port_state to READY and continue
+ * discovery.
+ */
+ if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
/* If we get here, there is nothing to ADISC */
- if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
- phba->hba_state = LPFC_CLEAR_LA;
- lpfc_clear_la(phba, mbox);
- mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
- rc = lpfc_sli_issue_mbox(phba, mbox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED) {
- mempool_free( mbox, phba->mbox_mem_pool);
- lpfc_disc_flush_list(phba);
- psli->ring[(psli->extra_ring)].flag &=
- ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->fcp_ring)].flag &=
- ~LPFC_STOP_IOCB_EVENT;
- psli->ring[(psli->next_ring)].flag &=
- ~LPFC_STOP_IOCB_EVENT;
- phba->hba_state = LPFC_HBA_READY;
+ if (vport->port_type == LPFC_PHYSICAL_PORT)
+ lpfc_issue_clear_la(phba, vport);
+
+ if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
+ vport->num_disc_nodes = 0;
+ /* go thru NPR nodes and issue ELS PLOGIs */
+ if (vport->fc_npr_cnt)
+ lpfc_els_disc_plogi(vport);
+
+ if (!vport->num_disc_nodes) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NDISC_ACTIVE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
}
}
+ vport->port_state = LPFC_VPORT_READY;
} else {
/* Next do PLOGIs - if any */
- num_sent = lpfc_els_disc_plogi(phba);
+ num_sent = lpfc_els_disc_plogi(vport);
if (num_sent)
return;
- if (phba->fc_flag & FC_RSCN_MODE) {
+ if (vport->fc_flag & FC_RSCN_MODE) {
/* Check to see if more RSCNs came in while we
* were processing this one.
*/
- if ((phba->fc_rscn_id_cnt == 0) &&
- (!(phba->fc_flag & FC_RSCN_DISCOVERY))) {
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_RSCN_MODE;
- spin_unlock_irq(phba->host->host_lock);
+ if ((vport->fc_rscn_id_cnt == 0) &&
+ (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_RSCN_MODE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
} else
- lpfc_els_handle_rscn(phba);
+ lpfc_els_handle_rscn(vport);
}
}
return;
* ring the match the sppecified nodelist.
*/
static void
-lpfc_free_tx(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
+lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_sli *psli;
/* Error matching iocb on txq or txcmplq
* First check the txq.
*/
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
if (iocb->context1 != ndlp) {
continue;
continue;
}
icmd = &iocb->iocb;
- if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
- (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
+ if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
+ icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
}
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
iocb = list_get_first(&completions, struct lpfc_iocbq, list);
- list_del(&iocb->list);
+ list_del_init(&iocb->list);
- if (iocb->iocb_cmpl) {
+ if (!iocb->iocb_cmpl)
+ lpfc_sli_release_iocbq(phba, iocb);
+ else {
icmd = &iocb->iocb;
icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
(iocb->iocb_cmpl) (phba, iocb, iocb);
- } else
- lpfc_sli_release_iocbq(phba, iocb);
+ }
}
-
- return;
}
-void
-lpfc_disc_flush_list(struct lpfc_hba * phba)
+static void
+lpfc_disc_flush_list(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
+ struct lpfc_hba *phba = vport->phba;
- if (phba->fc_plogi_cnt) {
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
- nlp_listp) {
- lpfc_free_tx(phba, ndlp);
- lpfc_nlp_remove(phba, ndlp);
- }
- }
- if (phba->fc_adisc_cnt) {
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
- nlp_listp) {
- lpfc_free_tx(phba, ndlp);
- lpfc_nlp_remove(phba, ndlp);
+ if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
+ nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
+ ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
+ lpfc_free_tx(phba, ndlp);
+ }
}
}
- return;
+}
+
+void
+lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
+{
+ lpfc_els_flush_rscn(vport);
+ lpfc_els_flush_cmd(vport);
+ lpfc_disc_flush_list(vport);
}
/*****************************************************************************/
void
lpfc_disc_timeout(unsigned long ptr)
{
- struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
+ struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t tmo_posted;
unsigned long flags = 0;
if (unlikely(!phba))
return;
- spin_lock_irqsave(phba->host->host_lock, flags);
- if (!(phba->work_hba_events & WORKER_DISC_TMO)) {
- phba->work_hba_events |= WORKER_DISC_TMO;
- if (phba->work_wait)
- wake_up(phba->work_wait);
- }
- spin_unlock_irqrestore(phba->host->host_lock, flags);
+ spin_lock_irqsave(&vport->work_port_lock, flags);
+ tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
+ if (!tmo_posted)
+ vport->work_port_events |= WORKER_DISC_TMO;
+ spin_unlock_irqrestore(&vport->work_port_lock, flags);
+
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
return;
}
static void
-lpfc_disc_timeout_handler(struct lpfc_hba *phba)
+lpfc_disc_timeout_handler(struct lpfc_vport *vport)
{
- struct lpfc_sli *psli;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_sli *psli = &phba->sli;
struct lpfc_nodelist *ndlp, *next_ndlp;
- LPFC_MBOXQ_t *clearlambox, *initlinkmbox;
+ LPFC_MBOXQ_t *initlinkmbox;
int rc, clrlaerr = 0;
- if (unlikely(!phba))
- return;
-
- if (!(phba->fc_flag & FC_DISC_TMO))
+ if (!(vport->fc_flag & FC_DISC_TMO))
return;
- psli = &phba->sli;
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_DISC_TMO;
+ spin_unlock_irq(shost->host_lock);
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_DISC_TMO;
- spin_unlock_irq(phba->host->host_lock);
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "disc timeout: state:x%x rtry:x%x flg:x%x",
+ vport->port_state, vport->fc_ns_retry, vport->fc_flag);
- switch (phba->hba_state) {
+ switch (vport->port_state) {
case LPFC_LOCAL_CFG_LINK:
- /* hba_state is identically LPFC_LOCAL_CFG_LINK while waiting for FAN */
- /* FAN timeout */
- lpfc_printf_log(phba,
- KERN_WARNING,
- LOG_DISCOVERY,
- "%d:0221 FAN timeout\n",
- phba->brd_no);
-
+ /* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
+ * FAN
+ */
+ /* FAN timeout */
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
+ "0221 FAN timeout\n");
/* Start discovery by sending FLOGI, clean up old rpis */
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
- nlp_listp) {
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
+ nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state != NLP_STE_NPR_NODE)
+ continue;
if (ndlp->nlp_type & NLP_FABRIC) {
/* Clean up the ndlp on Fabric connections */
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+ lpfc_drop_node(vport, ndlp);
+
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
/* Fail outstanding IO now since device
* is marked for PLOGI.
*/
- lpfc_unreg_rpi(phba, ndlp);
+ lpfc_unreg_rpi(vport, ndlp);
}
}
- phba->hba_state = LPFC_FLOGI;
- lpfc_set_disctmo(phba);
- lpfc_initial_flogi(phba);
+ if (vport->port_state != LPFC_FLOGI) {
+ lpfc_initial_flogi(vport);
+ return;
+ }
break;
+ case LPFC_FDISC:
case LPFC_FLOGI:
- /* hba_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
+ /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
/* Initial FLOGI timeout */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_DISCOVERY,
- "%d:0222 Initial FLOGI timeout\n",
- phba->brd_no);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0222 Initial %s timeout\n",
+ vport->vpi ? "FDISC" : "FLOGI");
/* Assume no Fabric and go on with discovery.
* Check for outstanding ELS FLOGI to abort.
*/
/* FLOGI failed, so just use loop map to make discovery list */
- lpfc_disc_list_loopmap(phba);
+ lpfc_disc_list_loopmap(vport);
/* Start discovery */
- lpfc_disc_start(phba);
+ lpfc_disc_start(vport);
break;
case LPFC_FABRIC_CFG_LINK:
/* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
NameServer login */
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0223 Timeout while waiting for NameServer "
- "login\n", phba->brd_no);
-
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0223 Timeout while waiting for "
+ "NameServer login\n");
/* Next look for NameServer ndlp */
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID);
- if (ndlp)
- lpfc_nlp_remove(phba, ndlp);
- /* Start discovery */
- lpfc_disc_start(phba);
- break;
+ ndlp = lpfc_findnode_did(vport, NameServer_DID);
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp))
+ lpfc_els_abort(phba, ndlp);
+
+ /* ReStart discovery */
+ goto restart_disc;
case LPFC_NS_QRY:
/* Check for wait for NameServer Rsp timeout */
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0224 NameServer Query timeout "
- "Data: x%x x%x\n",
- phba->brd_no,
- phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
-
- ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED,
- NameServer_DID);
- if (ndlp) {
- if (phba->fc_ns_retry < LPFC_MAX_NS_RETRY) {
- /* Try it one more time */
- rc = lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT);
- if (rc == 0)
- break;
- }
- phba->fc_ns_retry = 0;
- }
-
- /* Nothing to authenticate, so CLEAR_LA right now */
- clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!clearlambox) {
- clrlaerr = 1;
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0226 Device Discovery "
- "completion error\n",
- phba->brd_no);
- phba->hba_state = LPFC_HBA_ERROR;
- break;
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0224 NameServer Query timeout "
+ "Data: x%x x%x\n",
+ vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
+
+ if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
+ /* Try it one more time */
+ vport->fc_ns_retry++;
+ rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
+ vport->fc_ns_retry, 0);
+ if (rc == 0)
+ break;
}
+ vport->fc_ns_retry = 0;
- phba->hba_state = LPFC_CLEAR_LA;
- lpfc_clear_la(phba, clearlambox);
- clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
- rc = lpfc_sli_issue_mbox(phba, clearlambox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED) {
- mempool_free(clearlambox, phba->mbox_mem_pool);
- clrlaerr = 1;
- break;
+restart_disc:
+ /*
+ * Discovery is over.
+ * set port_state to PORT_READY if SLI2.
+ * cmpl_reg_vpi will set port_state to READY for SLI3.
+ */
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_reg_vpi(phba, vport);
+ else { /* NPIV Not enabled */
+ lpfc_issue_clear_la(phba, vport);
+ vport->port_state = LPFC_VPORT_READY;
}
/* Setup and issue mailbox INITIALIZE LINK command */
initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!initlinkmbox) {
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0206 Device Discovery "
- "completion error\n",
- phba->brd_no);
- phba->hba_state = LPFC_HBA_ERROR;
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0206 Device Discovery "
+ "completion error\n");
+ phba->link_state = LPFC_HBA_ERROR;
break;
}
lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
phba->cfg_link_speed);
initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
- rc = lpfc_sli_issue_mbox(phba, initlinkmbox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
+ initlinkmbox->vport = vport;
+ initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
+ lpfc_set_loopback_flag(phba);
if (rc == MBX_NOT_FINISHED)
mempool_free(initlinkmbox, phba->mbox_mem_pool);
case LPFC_DISC_AUTH:
/* Node Authentication timeout */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_DISCOVERY,
- "%d:0227 Node Authentication timeout\n",
- phba->brd_no);
- lpfc_disc_flush_list(phba);
- clearlambox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!clearlambox) {
- clrlaerr = 1;
- lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
- "%d:0207 Device Discovery "
- "completion error\n",
- phba->brd_no);
- phba->hba_state = LPFC_HBA_ERROR;
- break;
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0227 Node Authentication timeout\n");
+ lpfc_disc_flush_list(vport);
+
+ /*
+ * set port_state to PORT_READY if SLI2.
+ * cmpl_reg_vpi will set port_state to READY for SLI3.
+ */
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_reg_vpi(phba, vport);
+ else { /* NPIV Not enabled */
+ lpfc_issue_clear_la(phba, vport);
+ vport->port_state = LPFC_VPORT_READY;
}
- phba->hba_state = LPFC_CLEAR_LA;
- lpfc_clear_la(phba, clearlambox);
- clearlambox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
- rc = lpfc_sli_issue_mbox(phba, clearlambox,
- (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED) {
- mempool_free(clearlambox, phba->mbox_mem_pool);
- clrlaerr = 1;
+ break;
+
+ case LPFC_VPORT_READY:
+ if (vport->fc_flag & FC_RSCN_MODE) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0231 RSCN timeout Data: x%x "
+ "x%x\n",
+ vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_cmd(vport);
+
+ lpfc_els_flush_rscn(vport);
+ lpfc_disc_flush_list(vport);
}
break;
+ default:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0273 Unexpected discovery timeout, "
+ "vport State x%x\n", vport->port_state);
+ break;
+ }
+
+ switch (phba->link_state) {
case LPFC_CLEAR_LA:
- /* CLEAR LA timeout */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_DISCOVERY,
- "%d:0228 CLEAR LA timeout\n",
- phba->brd_no);
+ /* CLEAR LA timeout */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0228 CLEAR LA timeout\n");
clrlaerr = 1;
break;
- case LPFC_HBA_READY:
- if (phba->fc_flag & FC_RSCN_MODE) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_DISCOVERY,
- "%d:0231 RSCN timeout Data: x%x x%x\n",
- phba->brd_no,
- phba->fc_ns_retry, LPFC_MAX_NS_RETRY);
-
- /* Cleanup any outstanding ELS commands */
- lpfc_els_flush_cmd(phba);
+ case LPFC_LINK_UP:
+ lpfc_issue_clear_la(phba, vport);
+ /* Drop thru */
+ case LPFC_LINK_UNKNOWN:
+ case LPFC_WARM_START:
+ case LPFC_INIT_START:
+ case LPFC_INIT_MBX_CMDS:
+ case LPFC_LINK_DOWN:
+ case LPFC_HBA_ERROR:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0230 Unexpected timeout, hba link "
+ "state x%x\n", phba->link_state);
+ clrlaerr = 1;
+ break;
- lpfc_els_flush_rscn(phba);
- lpfc_disc_flush_list(phba);
- }
+ case LPFC_HBA_READY:
break;
}
if (clrlaerr) {
- lpfc_disc_flush_list(phba);
+ lpfc_disc_flush_list(vport);
psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
- phba->hba_state = LPFC_HBA_READY;
+ vport->port_state = LPFC_VPORT_READY;
}
return;
* handed off to the SLI layer.
*/
void
-lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
+lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- struct lpfc_sli *psli;
- MAILBOX_t *mb;
- struct lpfc_dmabuf *mp;
- struct lpfc_nodelist *ndlp;
-
- psli = &phba->sli;
- mb = &pmb->mb;
-
- ndlp = (struct lpfc_nodelist *) pmb->context2;
- mp = (struct lpfc_dmabuf *) (pmb->context1);
+ MAILBOX_t *mb = &pmb->mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
+ struct lpfc_vport *vport = pmb->vport;
pmb->context1 = NULL;
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_type |= NLP_FABRIC;
- ndlp->nlp_state = NLP_STE_UNMAPPED_NODE;
- lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
- /* Start issuing Fabric-Device Management Interface (FDMI)
- * command to 0xfffffa (FDMI well known port)
+ /*
+ * Start issuing Fabric-Device Management Interface (FDMI) command to
+ * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
+ * fdmi-on=2 (supporting RPA/hostnmae)
*/
- if (phba->cfg_fdmi_on == 1) {
- lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
- } else {
- /*
- * Delay issuing FDMI command if fdmi-on=2
- * (supporting RPA/hostnmae)
- */
- mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
- }
+ if (vport->cfg_fdmi_on == 1)
+ lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
+ else
+ mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
+
+ /* decrement the node reference count held for this callback
+ * function.
+ */
+ lpfc_nlp_put(ndlp);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
- mempool_free( pmb, phba->mbox_mem_pool);
+ mempool_free(pmb, phba->mbox_mem_pool);
return;
}
-/*
- * This routine looks up the ndlp lists
- * for the given RPI. If rpi found
- * it return the node list pointer
- * else return NULL.
- */
-struct lpfc_nodelist *
-__lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
+static int
+lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
+{
+ uint16_t *rpi = param;
+
+ return ndlp->nlp_rpi == *rpi;
+}
+
+static int
+lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
+{
+ return memcmp(&ndlp->nlp_portname, param,
+ sizeof(ndlp->nlp_portname)) == 0;
+}
+
+static struct lpfc_nodelist *
+__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
{
struct lpfc_nodelist *ndlp;
- struct list_head * lists[]={&phba->fc_nlpunmap_list,
- &phba->fc_nlpmap_list,
- &phba->fc_plogi_list,
- &phba->fc_adisc_list,
- &phba->fc_reglogin_list};
- int i;
- for (i = 0; i < ARRAY_SIZE(lists); i++ )
- list_for_each_entry(ndlp, lists[i], nlp_listp)
- if (ndlp->nlp_rpi == rpi) {
- return ndlp;
- }
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (filter(ndlp, param))
+ return ndlp;
+ }
return NULL;
}
+/*
+ * This routine looks up the ndlp lists for the given RPI. If rpi found it
+ * returns the node list element pointer else return NULL.
+ */
struct lpfc_nodelist *
-lpfc_findnode_rpi(struct lpfc_hba * phba, uint16_t rpi)
+__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
{
- struct lpfc_nodelist *ndlp;
-
- spin_lock_irq(phba->host->host_lock);
- ndlp = __lpfc_findnode_rpi(phba, rpi);
- spin_unlock_irq(phba->host->host_lock);
- return ndlp;
+ return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
}
/*
- * This routine looks up the ndlp lists
- * for the given WWPN. If WWPN found
- * it return the node list pointer
- * else return NULL.
+ * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
+ * returns the node element list pointer else return NULL.
*/
struct lpfc_nodelist *
-lpfc_findnode_wwpn(struct lpfc_hba * phba, uint32_t order,
- struct lpfc_name * wwpn)
+lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
- struct list_head * lists[]={&phba->fc_nlpunmap_list,
- &phba->fc_nlpmap_list,
- &phba->fc_npr_list,
- &phba->fc_plogi_list,
- &phba->fc_adisc_list,
- &phba->fc_reglogin_list,
- &phba->fc_prli_list};
- uint32_t search[]={NLP_SEARCH_UNMAPPED,
- NLP_SEARCH_MAPPED,
- NLP_SEARCH_NPR,
- NLP_SEARCH_PLOGI,
- NLP_SEARCH_ADISC,
- NLP_SEARCH_REGLOGIN,
- NLP_SEARCH_PRLI};
- int i;
- spin_lock_irq(phba->host->host_lock);
- for (i = 0; i < ARRAY_SIZE(lists); i++ ) {
- if (!(order & search[i]))
- continue;
- list_for_each_entry(ndlp, lists[i], nlp_listp) {
- if (memcmp(&ndlp->nlp_portname, wwpn,
- sizeof(struct lpfc_name)) == 0) {
- spin_unlock_irq(phba->host->host_lock);
- return ndlp;
- }
- }
- }
- spin_unlock_irq(phba->host->host_lock);
- return NULL;
+ spin_lock_irq(shost->host_lock);
+ ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
+ spin_unlock_irq(shost->host_lock);
+ return ndlp;
}
void
-lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
- uint32_t did)
+lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ uint32_t did)
{
memset(ndlp, 0, sizeof (struct lpfc_nodelist));
- INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
- init_timer(&ndlp->nlp_delayfunc);
- ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
- ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
- ndlp->nlp_DID = did;
- ndlp->nlp_phba = phba;
- ndlp->nlp_sid = NLP_NO_SID;
+
+ lpfc_initialize_node(vport, ndlp, did);
+ INIT_LIST_HEAD(&ndlp->nlp_listp);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
+ "node init: did:x%x",
+ ndlp->nlp_DID, 0, 0);
+
return;
}
+
+/* This routine releases all resources associated with a specifc NPort's ndlp
+ * and mempool_free's the nodelist.
+ */
+static void
+lpfc_nlp_release(struct kref *kref)
+{
+ struct lpfc_hba *phba;
+ unsigned long flags;
+ struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
+ kref);
+
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node release: did:x%x flg:x%x type:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
+
+ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+ "0279 lpfc_nlp_release: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+
+ /* remove ndlp from action. */
+ lpfc_nlp_remove(ndlp->vport, ndlp);
+
+ /* clear the ndlp active flag for all release cases */
+ phba = ndlp->vport->phba;
+ spin_lock_irqsave(&phba->ndlp_lock, flags);
+ NLP_CLR_NODE_ACT(ndlp);
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+
+ /* free ndlp memory for final ndlp release */
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ kfree(ndlp->lat_data);
+ mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
+ }
+}
+
+/* This routine bumps the reference count for a ndlp structure to ensure
+ * that one discovery thread won't free a ndlp while another discovery thread
+ * is using it.
+ */
+struct lpfc_nodelist *
+lpfc_nlp_get(struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_hba *phba;
+ unsigned long flags;
+
+ if (ndlp) {
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node get: did:x%x flg:x%x refcnt:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ atomic_read(&ndlp->kref.refcount));
+ /* The check of ndlp usage to prevent incrementing the
+ * ndlp reference count that is in the process of being
+ * released.
+ */
+ phba = ndlp->vport->phba;
+ spin_lock_irqsave(&phba->ndlp_lock, flags);
+ if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
+ "0276 lpfc_nlp_get: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ return NULL;
+ } else
+ kref_get(&ndlp->kref);
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ }
+ return ndlp;
+}
+
+/* This routine decrements the reference count for a ndlp structure. If the
+ * count goes to 0, this indicates the the associated nodelist should be
+ * freed. Returning 1 indicates the ndlp resource has been released; on the
+ * other hand, returning 0 indicates the ndlp resource has not been released
+ * yet.
+ */
+int
+lpfc_nlp_put(struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_hba *phba;
+ unsigned long flags;
+
+ if (!ndlp)
+ return 1;
+
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node put: did:x%x flg:x%x refcnt:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ atomic_read(&ndlp->kref.refcount));
+ phba = ndlp->vport->phba;
+ spin_lock_irqsave(&phba->ndlp_lock, flags);
+ /* Check the ndlp memory free acknowledge flag to avoid the
+ * possible race condition that kref_put got invoked again
+ * after previous one has done ndlp memory free.
+ */
+ if (NLP_CHK_FREE_ACK(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
+ "0274 lpfc_nlp_put: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ return 1;
+ }
+ /* Check the ndlp inactivate log flag to avoid the possible
+ * race condition that kref_put got invoked again after ndlp
+ * is already in inactivating state.
+ */
+ if (NLP_CHK_IACT_REQ(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
+ "0275 lpfc_nlp_put: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ atomic_read(&ndlp->kref.refcount));
+ return 1;
+ }
+ /* For last put, mark the ndlp usage flags to make sure no
+ * other kref_get and kref_put on the same ndlp shall get
+ * in between the process when the final kref_put has been
+ * invoked on this ndlp.
+ */
+ if (atomic_read(&ndlp->kref.refcount) == 1) {
+ /* Indicate ndlp is put to inactive state. */
+ NLP_SET_IACT_REQ(ndlp);
+ /* Acknowledge ndlp memory free has been seen. */
+ if (NLP_CHK_FREE_REQ(ndlp))
+ NLP_SET_FREE_ACK(ndlp);
+ }
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ /* Note, the kref_put returns 1 when decrementing a reference
+ * count that was 1, it invokes the release callback function,
+ * but it still left the reference count as 1 (not actually
+ * performs the last decrementation). Otherwise, it actually
+ * decrements the reference count and returns 0.
+ */
+ return kref_put(&ndlp->kref, lpfc_nlp_release);
+}
+
+/* This routine free's the specified nodelist if it is not in use
+ * by any other discovery thread. This routine returns 1 if the
+ * ndlp has been freed. A return value of 0 indicates the ndlp is
+ * not yet been released.
+ */
+int
+lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
+{
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node not used: did:x%x flg:x%x refcnt:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ atomic_read(&ndlp->kref.refcount));
+ if (atomic_read(&ndlp->kref.refcount) == 1)
+ if (lpfc_nlp_put(ndlp))
+ return 1;
+ return 0;
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff