/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2005 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 <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
+#include <linux/ctype.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
+#include "lpfc_vport.h"
#include "lpfc_version.h"
-static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *);
+static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);
static struct scsi_transport_template *lpfc_transport_template = NULL;
+static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
static DEFINE_IDR(lpfc_hba_index);
-/************************************************************************/
-/* */
-/* lpfc_config_port_prep */
-/* This routine will do LPFC initialization prior to the */
-/* CONFIG_PORT mailbox command. This will be initialized */
-/* as a SLI layer callback routine. */
-/* This routine returns 0 on success or -ERESTART if it wants */
-/* the SLI layer to reset the HBA and try again. Any */
-/* other return value indicates an error. */
-/* */
-/************************************************************************/
+/**
+ * lpfc_config_port_prep: Perform lpfc initialization prior to config port.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
+ * mailbox command. It retrieves the revision information from the HBA and
+ * collects the Vital Product Data (VPD) about the HBA for preparing the
+ * configuration of the HBA.
+ *
+ * Return codes:
+ * 0 - success.
+ * -ERESTART - requests the SLI layer to reset the HBA and try again.
+ * Any other value - indicates an error.
+ **/
int
-lpfc_config_port_prep(struct lpfc_hba * phba)
+lpfc_config_port_prep(struct lpfc_hba *phba)
{
lpfc_vpd_t *vp = &phba->vpd;
int i = 0, rc;
uint16_t offset = 0;
static char licensed[56] =
"key unlock for use with gnu public licensed code only\0";
+ static int init_key = 1;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
- phba->hba_state = LPFC_HBA_ERROR;
+ phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->mb;
- phba->hba_state = LPFC_INIT_MBX_CMDS;
+ phba->link_state = LPFC_INIT_MBX_CMDS;
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
- uint32_t *ptext = (uint32_t *) licensed;
+ if (init_key) {
+ uint32_t *ptext = (uint32_t *) licensed;
- for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
- *ptext = cpu_to_be32(*ptext);
+ for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
+ *ptext = cpu_to_be32(*ptext);
+ init_key = 0;
+ }
lpfc_read_nv(phba, pmb);
memset((char*)mb->un.varRDnvp.rsvd3, 0,
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_MBOX,
- "%d:0324 Config Port initialization "
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "0324 Config Port initialization "
"error, mbxCmd x%x READ_NVPARM, "
"mbxStatus x%x\n",
- phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
- sizeof (mb->un.varRDnvp.nodename));
+ sizeof(phba->wwnn));
+ memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
+ sizeof(phba->wwpn));
}
+ phba->sli3_options = 0x0;
+
/* Setup and issue mailbox READ REV command */
lpfc_read_rev(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_INIT,
- "%d:0439 Adapter failed to init, mbxCmd x%x "
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0439 Adapter failed to init, mbxCmd x%x "
"READ_REV, mbxStatus x%x\n",
- phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
mempool_free( pmb, phba->mbox_mem_pool);
return -ERESTART;
}
- /* The HBA's current state is provided by the ProgType and rr fields.
- * Read and check the value of these fields before continuing to config
- * this port.
+
+ /*
+ * The value of rr must be 1 since the driver set the cv field to 1.
+ * This setting requires the FW to set all revision fields.
*/
- if (mb->un.varRdRev.rr == 0 || mb->un.varRdRev.un.b.ProgType != 2) {
- /* Old firmware */
+ if (mb->un.varRdRev.rr == 0) {
vp->rev.rBit = 0;
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_INIT,
- "%d:0440 Adapter failed to init, mbxCmd x%x "
- "READ_REV detected outdated firmware"
- "Data: x%x\n",
- phba->brd_no,
- mb->mbxCommand, 0);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0440 Adapter failed to init, READ_REV has "
+ "missing revision information.\n");
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
- } else {
- vp->rev.rBit = 1;
- vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
- memcpy(vp->rev.sli1FwName,
- (char*)mb->un.varRdRev.sli1FwName, 16);
- vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
- memcpy(vp->rev.sli2FwName,
- (char *)mb->un.varRdRev.sli2FwName, 16);
+ }
+
+ if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return -EINVAL;
}
/* Save information as VPD data */
+ vp->rev.rBit = 1;
+ memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
+ vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
+ memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
+ vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
+ memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
vp->rev.biuRev = mb->un.varRdRev.biuRev;
vp->rev.smRev = mb->un.varRdRev.smRev;
vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
+ /* If the sli feature level is less then 9, we must
+ * tear down all RPIs and VPIs on link down if NPIV
+ * is enabled.
+ */
+ if (vp->rev.feaLevelHigh < 9)
+ phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
+
if (lpfc_is_LC_HBA(phba->pcidev->device))
memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
sizeof (phba->RandomData));
- /* Get the default values for Model Name and Description */
- lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
-
/* Get adapter VPD information */
pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
if (!pmb->context2)
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
- "%d:0441 VPD not present on adapter, "
+ "0441 VPD not present on adapter, "
"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
- phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
- kfree(lpfc_vpd_data);
- lpfc_vpd_data = NULL;
- break;
+ mb->un.varDmp.word_cnt = 0;
}
-
+ if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
+ mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset,
- mb->un.varDmp.word_cnt);
+ mb->un.varDmp.word_cnt);
offset += mb->un.varDmp.word_cnt;
- } while (mb->un.varDmp.word_cnt);
- lpfc_parse_vpd(phba, lpfc_vpd_data);
+ } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
+ lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
kfree(lpfc_vpd_data);
out_free_context2:
return 0;
}
-/************************************************************************/
-/* */
-/* lpfc_config_port_post */
-/* This routine will do LPFC initialization after the */
-/* CONFIG_PORT mailbox command. This will be initialized */
-/* as a SLI layer callback routine. */
-/* This routine returns 0 on success. Any other return value */
-/* indicates an error. */
-/* */
-/************************************************************************/
+/**
+ * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd.
+ * @phba: pointer to lpfc hba data structure.
+ * @pmboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This is the completion handler for driver's configuring asynchronous event
+ * mailbox command to the device. If the mailbox command returns successfully,
+ * it will set internal async event support flag to 1; otherwise, it will
+ * set internal async event support flag to 0.
+ **/
+static void
+lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
+{
+ if (pmboxq->mb.mbxStatus == MBX_SUCCESS)
+ phba->temp_sensor_support = 1;
+ else
+ phba->temp_sensor_support = 0;
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_config_port_post: Perform lpfc initialization after config port.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine will do LPFC initialization after the CONFIG_PORT mailbox
+ * command call. It performs all internal resource and state setups on the
+ * port: post IOCB buffers, enable appropriate host interrupt attentions,
+ * ELS ring timers, etc.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
int
-lpfc_config_port_post(struct lpfc_hba * phba)
+lpfc_config_port_post(struct lpfc_hba *phba)
{
+ struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
struct lpfc_sli *psli = &phba->sli;
uint32_t status, timeout;
- int i, j, rc;
+ int i, j;
+ int rc;
+
+ spin_lock_irq(&phba->hbalock);
+ /*
+ * If the Config port completed correctly the HBA is not
+ * over heated any more.
+ */
+ if (phba->over_temp_state == HBA_OVER_TEMP)
+ phba->over_temp_state = HBA_NORMAL_TEMP;
+ spin_unlock_irq(&phba->hbalock);
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
- phba->hba_state = LPFC_HBA_ERROR;
+ phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->mb;
- lpfc_config_link(phba, pmb);
- rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
- if (rc != MBX_SUCCESS) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_INIT,
- "%d:0447 Adapter failed init, mbxCmd x%x "
- "CONFIG_LINK mbxStatus x%x\n",
- phba->brd_no,
- mb->mbxCommand, mb->mbxStatus);
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
- return -EIO;
- }
-
/* Get login parameters for NID. */
- lpfc_read_sparam(phba, pmb);
+ lpfc_read_sparam(phba, pmb, 0);
+ pmb->vport = vport;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_INIT,
- "%d:0448 Adapter failed init, mbxCmd x%x "
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0448 Adapter failed init, mbxCmd x%x "
"READ_SPARM mbxStatus x%x\n",
- phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
- phba->hba_state = LPFC_HBA_ERROR;
+ phba->link_state = LPFC_HBA_ERROR;
mp = (struct lpfc_dmabuf *) pmb->context1;
mempool_free( pmb, phba->mbox_mem_pool);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
mp = (struct lpfc_dmabuf *) pmb->context1;
- memcpy(&phba->fc_sparam, mp->virt, sizeof (struct serv_parm));
+ memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
pmb->context1 = NULL;
- memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
+ if (phba->cfg_soft_wwnn)
+ u64_to_wwn(phba->cfg_soft_wwnn,
+ vport->fc_sparam.nodeName.u.wwn);
+ if (phba->cfg_soft_wwpn)
+ u64_to_wwn(phba->cfg_soft_wwpn,
+ vport->fc_sparam.portName.u.wwn);
+ memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
sizeof (struct lpfc_name));
- memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
+ memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof (struct lpfc_name));
/* If no serial number in VPD data, use low 6 bytes of WWNN */
/* This should be consolidated into parse_vpd ? - mr */
if (phba->SerialNumber[0] == 0) {
uint8_t *outptr;
- outptr = &phba->fc_nodename.u.s.IEEE[0];
+ outptr = &vport->fc_nodename.u.s.IEEE[0];
for (i = 0; i < 12; i++) {
status = *outptr++;
j = ((status & 0xf0) >> 4);
}
}
- /* This should turn on DELAYED ABTS for ELS timeouts */
- lpfc_set_slim(phba, pmb, 0x052198, 0x1);
- if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free( pmb, phba->mbox_mem_pool);
- return -EIO;
- }
-
-
lpfc_read_config(phba, pmb);
+ pmb->vport = vport;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_INIT,
- "%d:0453 Adapter failed to init, mbxCmd x%x "
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0453 Adapter failed to init, mbxCmd x%x "
"READ_CONFIG, mbxStatus x%x\n",
- phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
- phba->hba_state = LPFC_HBA_ERROR;
+ phba->link_state = LPFC_HBA_ERROR;
mempool_free( pmb, phba->mbox_mem_pool);
return -EIO;
}
mb->un.varRdConfig.max_xri + 1;
phba->lmt = mb->un.varRdConfig.lmt;
- /* HBA is not 4GB capable, or HBA is not 2GB capable,
- don't let link speed ask for it */
- if ((((phba->lmt & LMT_4250_10bit) != LMT_4250_10bit) &&
- (phba->cfg_link_speed > LINK_SPEED_2G)) ||
- (((phba->lmt & LMT_2125_10bit) != LMT_2125_10bit) &&
- (phba->cfg_link_speed > LINK_SPEED_1G))) {
- /* Reset link speed to auto. 1G/2GB HBA cfg'd for 4G */
- lpfc_printf_log(phba,
- KERN_WARNING,
- LOG_LINK_EVENT,
- "%d:1302 Invalid speed for this board: "
+
+ /* Get the default values for Model Name and Description */
+ lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
+
+ if ((phba->cfg_link_speed > LINK_SPEED_10G)
+ || ((phba->cfg_link_speed == LINK_SPEED_1G)
+ && !(phba->lmt & LMT_1Gb))
+ || ((phba->cfg_link_speed == LINK_SPEED_2G)
+ && !(phba->lmt & LMT_2Gb))
+ || ((phba->cfg_link_speed == LINK_SPEED_4G)
+ && !(phba->lmt & LMT_4Gb))
+ || ((phba->cfg_link_speed == LINK_SPEED_8G)
+ && !(phba->lmt & LMT_8Gb))
+ || ((phba->cfg_link_speed == LINK_SPEED_10G)
+ && !(phba->lmt & LMT_10Gb))) {
+ /* Reset link speed to auto */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
+ "1302 Invalid speed for this board: "
"Reset link speed to auto: x%x\n",
- phba->brd_no,
phba->cfg_link_speed);
phba->cfg_link_speed = LINK_SPEED_AUTO;
}
- phba->hba_state = LPFC_LINK_DOWN;
+ phba->link_state = LPFC_LINK_DOWN;
- /* Only process IOCBs on ring 0 till hba_state is READY */
- if (psli->ring[psli->ip_ring].cmdringaddr)
- psli->ring[psli->ip_ring].flag |= LPFC_STOP_IOCB_EVENT;
+ /* Only process IOCBs on ELS ring till hba_state is READY */
+ if (psli->ring[psli->extra_ring].cmdringaddr)
+ psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
if (psli->ring[psli->fcp_ring].cmdringaddr)
psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
if (psli->ring[psli->next_ring].cmdringaddr)
psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
/* Post receive buffers for desired rings */
- lpfc_post_rcv_buf(phba);
+ if (phba->sli_rev != 3)
+ lpfc_post_rcv_buf(phba);
/* Enable appropriate host interrupts */
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
status = readl(phba->HCregaddr);
status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
if (psli->num_rings > 0)
if (psli->num_rings > 3)
status |= HC_R3INT_ENA;
+ if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
+ (phba->cfg_poll & DISABLE_FCP_RING_INT))
+ status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+
writel(status, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
/*
* Setup the ring 0 (els) timeout handler
*/
timeout = phba->fc_ratov << 1;
- phba->els_tmofunc.expires = jiffies + HZ * timeout;
- add_timer(&phba->els_tmofunc);
+ mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
+ mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
+ phba->hb_outstanding = 0;
+ phba->last_completion_time = jiffies;
lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
- if (lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT) != MBX_SUCCESS) {
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_INIT,
- "%d:0454 Adapter failed to init, mbxCmd x%x "
+ pmb->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+ lpfc_set_loopback_flag(phba);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0454 Adapter failed to init, mbxCmd x%x "
"INIT_LINK, mbxStatus x%x\n",
- phba->brd_no,
mb->mbxCommand, mb->mbxStatus);
/* Clear all interrupt enable conditions */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
- phba->hba_state = LPFC_HBA_ERROR;
- mempool_free(pmb, phba->mbox_mem_pool);
+ phba->link_state = LPFC_HBA_ERROR;
+ if (rc != MBX_BUSY)
+ mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
/* MBOX buffer will be freed in mbox compl */
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ lpfc_config_async(phba, pmb, LPFC_ELS_RING);
+ pmb->mbox_cmpl = lpfc_config_async_cmpl;
+ pmb->vport = phba->pport;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
- i = 0;
- while ((phba->hba_state != LPFC_HBA_READY) ||
- (phba->num_disc_nodes) || (phba->fc_prli_sent) ||
- ((phba->fc_map_cnt == 0) && (i<2)) ||
- (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
- /* Check every second for 30 retries. */
- i++;
- if (i > 30) {
- break;
- }
- if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
- /* The link is down. Set linkdown timeout */
- break;
- }
-
- /* Delay for 1 second to give discovery time to complete. */
- msleep(1000);
-
+ if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+ lpfc_printf_log(phba,
+ KERN_ERR,
+ LOG_INIT,
+ "0456 Adapter failed to issue "
+ "ASYNCEVT_ENABLE mbox status x%x \n.",
+ rc);
+ mempool_free(pmb, phba->mbox_mem_pool);
}
-
- /* Since num_disc_nodes keys off of PLOGI, delay a bit to let
- * any potential PRLIs to flush thru the SLI sub-system.
- */
- msleep(50);
-
return (0);
}
-/************************************************************************/
-/* */
-/* lpfc_hba_down_prep */
-/* This routine will do LPFC uninitialization before the */
-/* HBA is reset when bringing down the SLI Layer. This will be */
-/* initialized as a SLI layer callback routine. */
-/* This routine returns 0 on success. Any other return value */
-/* indicates an error. */
-/* */
-/************************************************************************/
+/**
+ * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset.
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will do LPFC uninitialization before the HBA is reset when
+ * bringing down the SLI Layer.
+ *
+ * Return codes
+ * 0 - success.
+ * Any other value - error.
+ **/
int
-lpfc_hba_down_prep(struct lpfc_hba * phba)
+lpfc_hba_down_prep(struct lpfc_hba *phba)
{
+ struct lpfc_vport **vports;
+ int i;
/* Disable interrupts */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
- /* Cleanup potential discovery resources */
- lpfc_els_flush_rscn(phba);
- lpfc_els_flush_cmd(phba);
- lpfc_disc_flush_list(phba);
+ if (phba->pport->load_flag & FC_UNLOADING)
+ lpfc_cleanup_discovery_resources(phba->pport);
+ else {
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
+ lpfc_cleanup_discovery_resources(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+ }
+ return 0;
+}
- return (0);
+/**
+ * lpfc_hba_down_post: Perform lpfc uninitialization after HBA reset.
+ * @phba: pointer to lpfc HBA data structure.
+ *
+ * This routine will do uninitialization after the HBA is reset when bring
+ * down the SLI Layer.
+ *
+ * Return codes
+ * 0 - sucess.
+ * Any other value - error.
+ **/
+int
+lpfc_hba_down_post(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+ struct lpfc_dmabuf *mp, *next_mp;
+ struct lpfc_iocbq *iocb;
+ IOCB_t *cmd = NULL;
+ LIST_HEAD(completions);
+ int i;
+
+ if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
+ lpfc_sli_hbqbuf_free_all(phba);
+ else {
+ /* Cleanup preposted buffers on the ELS ring */
+ pring = &psli->ring[LPFC_ELS_RING];
+ list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
+ list_del(&mp->list);
+ pring->postbufq_cnt--;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ }
+ }
+
+ spin_lock_irq(&phba->hbalock);
+ for (i = 0; i < psli->num_rings; i++) {
+ pring = &psli->ring[i];
+
+ /* At this point in time the HBA is either reset or DOA. Either
+ * way, nothing should be on txcmplq as it will NEVER complete.
+ */
+ list_splice_init(&pring->txcmplq, &completions);
+ pring->txcmplq_cnt = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ while (!list_empty(&completions)) {
+ iocb = list_get_first(&completions, struct lpfc_iocbq,
+ list);
+ cmd = &iocb->iocb;
+ list_del_init(&iocb->list);
+
+ if (!iocb->iocb_cmpl)
+ lpfc_sli_release_iocbq(phba, iocb);
+ else {
+ cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
+ cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ }
+ }
+
+ lpfc_sli_abort_iocb_ring(phba, pring);
+ spin_lock_irq(&phba->hbalock);
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ return 0;
+}
+
+/**
+ * lpfc_hb_timeout: The HBA-timer timeout handler.
+ * @ptr: unsigned long holds the pointer to lpfc hba data structure.
+ *
+ * This is the HBA-timer timeout handler registered to the lpfc driver. When
+ * this timer fires, a HBA timeout event shall be posted to the lpfc driver
+ * work-port-events bitmap and the worker thread is notified. This timeout
+ * event will be used by the worker thread to invoke the actual timeout
+ * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
+ * be performed in the timeout handler and the HBA timeout event bit shall
+ * be cleared by the worker thread after it has taken the event bitmap out.
+ **/
+static void
+lpfc_hb_timeout(unsigned long ptr)
+{
+ struct lpfc_hba *phba;
+ uint32_t tmo_posted;
+ unsigned long iflag;
+
+ phba = (struct lpfc_hba *)ptr;
+ spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
+ tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
+ if (!tmo_posted)
+ phba->pport->work_port_events |= WORKER_HB_TMO;
+ spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
+
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
+ return;
+}
+
+/**
+ * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function.
+ * @phba: pointer to lpfc hba data structure.
+ * @pmboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This is the callback function to the lpfc heart-beat mailbox command.
+ * If configured, the lpfc driver issues the heart-beat mailbox command to
+ * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
+ * heart-beat mailbox command is issued, the driver shall set up heart-beat
+ * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
+ * heart-beat outstanding state. Once the mailbox command comes back and
+ * no error conditions detected, the heart-beat mailbox command timer is
+ * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
+ * state is cleared for the next heart-beat. If the timer expired with the
+ * heart-beat outstanding state set, the driver will put the HBA offline.
+ **/
+static void
+lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
+{
+ unsigned long drvr_flag;
+
+ spin_lock_irqsave(&phba->hbalock, drvr_flag);
+ phba->hb_outstanding = 0;
+ spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
+
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
+ !(phba->link_state == LPFC_HBA_ERROR) &&
+ !(phba->pport->load_flag & FC_UNLOADING))
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
+ return;
}
-/************************************************************************/
-/* */
-/* lpfc_handle_eratt */
-/* This routine will handle processing a Host Attention */
-/* Error Status event. This will be initialized */
-/* as a SLI layer callback routine. */
-/* */
-/************************************************************************/
+/**
+ * lpfc_hb_timeout_handler: The HBA-timer timeout handler.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This is the actual HBA-timer timeout handler to be invoked by the worker
+ * thread whenever the HBA timer fired and HBA-timeout event posted. This
+ * handler performs any periodic operations needed for the device. If such
+ * periodic event has already been attended to either in the interrupt handler
+ * or by processing slow-ring or fast-ring events within the HBA-timer
+ * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
+ * the timer for the next timeout period. If lpfc heart-beat mailbox command
+ * is configured and there is no heart-beat mailbox command outstanding, a
+ * heart-beat mailbox is issued and timer set properly. Otherwise, if there
+ * has been a heart-beat mailbox command outstanding, the HBA shall be put
+ * to offline.
+ **/
void
-lpfc_handle_eratt(struct lpfc_hba * phba)
+lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
+ LPFC_MBOXQ_t *pmboxq;
+ struct lpfc_dmabuf *buf_ptr;
+ int retval;
struct lpfc_sli *psli = &phba->sli;
- struct lpfc_sli_ring *pring;
+ LIST_HEAD(completions);
- /*
- * If a reset is sent to the HBA restore PCI configuration registers.
- */
- if ( phba->hba_state == LPFC_INIT_START ) {
- mdelay(1);
- readl(phba->HCregaddr); /* flush */
- writel(0, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
+ if ((phba->link_state == LPFC_HBA_ERROR) ||
+ (phba->pport->load_flag & FC_UNLOADING) ||
+ (phba->pport->fc_flag & FC_OFFLINE_MODE))
+ return;
+
+ spin_lock_irq(&phba->pport->work_port_lock);
+ /* If the timer is already canceled do nothing */
+ if (!(phba->pport->work_port_events & WORKER_HB_TMO)) {
+ spin_unlock_irq(&phba->pport->work_port_lock);
+ return;
+ }
- /* Restore PCI cmd register */
- pci_write_config_word(phba->pcidev,
- PCI_COMMAND, phba->pci_cfg_value);
+ if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
+ jiffies)) {
+ spin_unlock_irq(&phba->pport->work_port_lock);
+ if (!phba->hb_outstanding)
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
+ else
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
+ return;
}
+ spin_unlock_irq(&phba->pport->work_port_lock);
+
+ if (phba->elsbuf_cnt &&
+ (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
+ spin_lock_irq(&phba->hbalock);
+ list_splice_init(&phba->elsbuf, &completions);
+ phba->elsbuf_cnt = 0;
+ phba->elsbuf_prev_cnt = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ while (!list_empty(&completions)) {
+ list_remove_head(&completions, buf_ptr,
+ struct lpfc_dmabuf, list);
+ lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
+ kfree(buf_ptr);
+ }
+ }
+ phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
+
+ /* If there is no heart beat outstanding, issue a heartbeat command */
+ if (phba->cfg_enable_hba_heartbeat) {
+ if (!phba->hb_outstanding) {
+ pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
+ if (!pmboxq) {
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
+ return;
+ }
+
+ lpfc_heart_beat(phba, pmboxq);
+ pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
+ pmboxq->vport = phba->pport;
+ retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
+
+ if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
+ mempool_free(pmboxq, phba->mbox_mem_pool);
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
+ return;
+ }
+ mod_timer(&phba->hb_tmofunc,
+ jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
+ phba->hb_outstanding = 1;
+ return;
+ } else {
+ /*
+ * If heart beat timeout called with hb_outstanding set
+ * we need to take the HBA offline.
+ */
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0459 Adapter heartbeat failure, "
+ "taking this port offline.\n");
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_offline_prep(phba);
+ lpfc_offline(phba);
+ lpfc_unblock_mgmt_io(phba);
+ phba->link_state = LPFC_HBA_ERROR;
+ lpfc_hba_down_post(phba);
+ }
+ }
+}
+
+/**
+ * lpfc_offline_eratt: Bring lpfc offline on hardware error attention.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is called to bring the HBA offline when HBA hardware error
+ * other than Port Error 6 has been detected.
+ **/
+static void
+lpfc_offline_eratt(struct lpfc_hba *phba)
+{
+ struct lpfc_sli *psli = &phba->sli;
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_offline_prep(phba);
+
+ lpfc_offline(phba);
+ lpfc_reset_barrier(phba);
+ lpfc_sli_brdreset(phba);
+ lpfc_hba_down_post(phba);
+ lpfc_sli_brdready(phba, HS_MBRDY);
+ lpfc_unblock_mgmt_io(phba);
+ phba->link_state = LPFC_HBA_ERROR;
+ return;
+}
+
+/**
+ * lpfc_handle_eratt: The HBA hardware error handler.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to handle the following HBA hardware error
+ * conditions:
+ * 1 - HBA error attention interrupt
+ * 2 - DMA ring index out of range
+ * 3 - Mailbox command came back as unknown
+ **/
+void
+lpfc_handle_eratt(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+ uint32_t event_data;
+ unsigned long temperature;
+ struct temp_event temp_event_data;
+ struct Scsi_Host *shost;
+
+ /* If the pci channel is offline, ignore possible errors,
+ * since we cannot communicate with the pci card anyway. */
+ if (pci_channel_offline(phba->pcidev))
+ return;
+ /* If resets are disabled then leave the HBA alone and return */
+ if (!phba->cfg_enable_hba_reset)
+ return;
if (phba->work_hs & HS_FFER6) {
/* Re-establishing Link */
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
- "%d:1301 Re-establishing Link "
+ "1301 Re-establishing Link "
"Data: x%x x%x x%x\n",
- phba->brd_no, phba->work_hs,
+ phba->work_hs,
phba->work_status[0], phba->work_status[1]);
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag |= FC_ESTABLISH_LINK;
- spin_unlock_irq(phba->host->host_lock);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
/*
* Firmware stops when it triggled erratt with HS_FFER6.
pring = &psli->ring[psli->fcp_ring];
lpfc_sli_abort_iocb_ring(phba, pring);
-
/*
* There was a firmware error. Take the hba offline and then
* attempt to restart it.
*/
+ lpfc_offline_prep(phba);
lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
if (lpfc_online(phba) == 0) { /* Initialize the HBA */
- mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
+ lpfc_unblock_mgmt_io(phba);
return;
}
+ lpfc_unblock_mgmt_io(phba);
+ } else if (phba->work_hs & HS_CRIT_TEMP) {
+ temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
+ temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
+ temp_event_data.event_code = LPFC_CRIT_TEMP;
+ temp_event_data.data = (uint32_t)temperature;
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0459 Adapter maximum temperature exceeded "
+ "(%ld), taking this port offline "
+ "Data: x%x x%x x%x\n",
+ temperature, phba->work_hs,
+ phba->work_status[0], phba->work_status[1]);
+
+ shost = lpfc_shost_from_vport(phba->pport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(temp_event_data),
+ (char *) &temp_event_data,
+ SCSI_NL_VID_TYPE_PCI
+ | PCI_VENDOR_ID_EMULEX);
+
+ spin_lock_irq(&phba->hbalock);
+ phba->over_temp_state = HBA_OVER_TEMP;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_offline_eratt(phba);
+
} else {
/* The if clause above forces this code path when the status
* failure is a value other than FFER6. Do not call the offline
* twice. This is the adapter hardware error path.
*/
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "%d:0457 Adapter Hardware Error "
+ "0457 Adapter Hardware Error "
"Data: x%x x%x x%x\n",
- phba->brd_no, phba->work_hs,
+ phba->work_hs,
phba->work_status[0], phba->work_status[1]);
- lpfc_offline(phba);
+ event_data = FC_REG_DUMP_EVENT;
+ shost = lpfc_shost_from_vport(vport);
+ fc_host_post_vendor_event(shost, fc_get_event_number(),
+ sizeof(event_data), (char *) &event_data,
+ SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+ lpfc_offline_eratt(phba);
}
}
-/************************************************************************/
-/* */
-/* lpfc_handle_latt */
-/* This routine will handle processing a Host Attention */
-/* Link Status event. This will be initialized */
-/* as a SLI layer callback routine. */
-/* */
-/************************************************************************/
+/**
+ * lpfc_handle_latt: The HBA link event handler.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked from the worker thread to handle a HBA host
+ * attention link event.
+ **/
void
-lpfc_handle_latt(struct lpfc_hba * phba)
+lpfc_handle_latt(struct lpfc_hba *phba)
{
- struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *pmb;
volatile uint32_t control;
struct lpfc_dmabuf *mp;
- int rc = -ENOMEM;
+ int rc = 0;
pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!pmb)
+ if (!pmb) {
+ rc = 1;
goto lpfc_handle_latt_err_exit;
+ }
mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
- if (!mp)
+ if (!mp) {
+ rc = 2;
goto lpfc_handle_latt_free_pmb;
+ }
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
- if (!mp->virt)
+ if (!mp->virt) {
+ rc = 3;
goto lpfc_handle_latt_free_mp;
+ }
- rc = -EIO;
-
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_all_cmd(phba);
psli->slistat.link_event++;
lpfc_read_la(phba, pmb, mp);
pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
- rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
- if (rc == MBX_NOT_FINISHED)
- goto lpfc_handle_latt_free_mp;
+ pmb->vport = vport;
+ /* Block ELS IOCBs until we have processed this mbox command */
+ phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
+ rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ rc = 4;
+ goto lpfc_handle_latt_free_mbuf;
+ }
/* Clear Link Attention in HA REG */
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
writel(HA_LATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
return;
+lpfc_handle_latt_free_mbuf:
+ phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
lpfc_handle_latt_free_mp:
kfree(mp);
lpfc_handle_latt_free_pmb:
- kfree(pmb);
+ mempool_free(pmb, phba->mbox_mem_pool);
lpfc_handle_latt_err_exit:
/* Enable 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;
/* Clear Link Attention in HA REG */
writel(HA_LATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
lpfc_linkdown(phba);
- phba->hba_state = LPFC_HBA_ERROR;
+ phba->link_state = LPFC_HBA_ERROR;
- /* The other case is an error from issue_mbox */
- if (rc == -ENOMEM)
- lpfc_printf_log(phba,
- KERN_WARNING,
- LOG_MBOX,
- "%d:0300 READ_LA: no buffers\n",
- phba->brd_no);
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
return;
}
-/************************************************************************/
-/* */
-/* lpfc_parse_vpd */
-/* This routine will parse the VPD data */
-/* */
-/************************************************************************/
+/**
+ * lpfc_parse_vpd: Parse VPD (Vital Product Data).
+ * @phba: pointer to lpfc hba data structure.
+ * @vpd: pointer to the vital product data.
+ * @len: length of the vital product data in bytes.
+ *
+ * This routine parses the Vital Product Data (VPD). The VPD is treated as
+ * an array of characters. In this routine, the ModelName, ProgramType, and
+ * ModelDesc, etc. fields of the phba data structure will be populated.
+ *
+ * Return codes
+ * 0 - pointer to the VPD passed in is NULL
+ * 1 - success
+ **/
static int
-lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd)
+lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
{
uint8_t lenlo, lenhi;
- uint32_t Length;
+ int Length;
int i, j;
int finished = 0;
int index = 0;
return 0;
/* Vital Product */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_INIT,
- "%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
- phba->brd_no,
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0455 Vital Product Data: x%x x%x x%x x%x\n",
(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
(uint32_t) vpd[3]);
- do {
+ while (!finished && (index < (len - 4))) {
switch (vpd[index]) {
case 0x82:
+ case 0x91:
index += 1;
lenlo = vpd[index];
index += 1;
lenhi = vpd[index];
index += 1;
Length = ((((unsigned short)lenhi) << 8) + lenlo);
-
+ if (Length > len - index)
+ Length = len - index;
while (Length > 0) {
/* Look for Serial Number */
if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
index ++;
break;
}
- } while (!finished && (index < 108));
+ }
return(1);
}
+/**
+ * lpfc_get_hba_model_desc: Retrieve HBA device model name and description.
+ * @phba: pointer to lpfc hba data structure.
+ * @mdp: pointer to the data structure to hold the derived model name.
+ * @descp: pointer to the data structure to hold the derived description.
+ *
+ * This routine retrieves HBA's description based on its registered PCI device
+ * ID. The @descp passed into this function points to an array of 256 chars. It
+ * shall be returned with the model name, maximum speed, and the host bus type.
+ * The @mdp passed into this function points to an array of 80 chars. When the
+ * function returns, the @mdp will be filled with the model name.
+ **/
static void
-lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
+lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
{
lpfc_vpd_t *vp;
- uint32_t id;
- uint8_t hdrtype;
- char str[16];
+ uint16_t dev_id = phba->pcidev->device;
+ int max_speed;
+ struct {
+ char * name;
+ int max_speed;
+ char * bus;
+ } m = {"<Unknown>", 0, ""};
+
+ if (mdp && mdp[0] != '\0'
+ && descp && descp[0] != '\0')
+ return;
+
+ if (phba->lmt & LMT_10Gb)
+ max_speed = 10;
+ else if (phba->lmt & LMT_8Gb)
+ max_speed = 8;
+ else if (phba->lmt & LMT_4Gb)
+ max_speed = 4;
+ else if (phba->lmt & LMT_2Gb)
+ max_speed = 2;
+ else
+ max_speed = 1;
vp = &phba->vpd;
- pci_read_config_dword(phba->pcidev, PCI_VENDOR_ID, &id);
- pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
- switch ((id >> 16) & 0xffff) {
+ switch (dev_id) {
case PCI_DEVICE_ID_FIREFLY:
- strcpy(str, "LP6000 1");
+ m = (typeof(m)){"LP6000", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_SUPERFLY:
if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
- strcpy(str, "LP7000 1");
+ m = (typeof(m)){"LP7000", max_speed, "PCI"};
else
- strcpy(str, "LP7000E 1");
+ m = (typeof(m)){"LP7000E", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_DRAGONFLY:
- strcpy(str, "LP8000 1");
+ m = (typeof(m)){"LP8000", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_CENTAUR:
if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
- strcpy(str, "LP9002 2");
+ m = (typeof(m)){"LP9002", max_speed, "PCI"};
else
- strcpy(str, "LP9000 1");
+ m = (typeof(m)){"LP9000", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_RFLY:
- strcpy(str, "LP952 2");
+ m = (typeof(m)){"LP952", max_speed, "PCI"};
break;
case PCI_DEVICE_ID_PEGASUS:
- strcpy(str, "LP9802 2");
+ m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_THOR:
- if (hdrtype == 0x80)
- strcpy(str, "LP10000DC 2");
- else
- strcpy(str, "LP10000 2");
+ m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_VIPER:
- strcpy(str, "LPX1000 10");
+ m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_PFLY:
- strcpy(str, "LP982 2");
+ m = (typeof(m)){"LP982", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_TFLY:
- if (hdrtype == 0x80)
- strcpy(str, "LP1050DC 2");
- else
- strcpy(str, "LP1050 2");
+ m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_HELIOS:
- if (hdrtype == 0x80)
- strcpy(str, "LP11002 4");
- else
- strcpy(str, "LP11000 4");
+ m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
+ break;
+ case PCI_DEVICE_ID_HELIOS_SCSP:
+ m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
+ break;
+ case PCI_DEVICE_ID_HELIOS_DCSP:
+ m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
+ break;
+ case PCI_DEVICE_ID_NEPTUNE:
+ m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_NEPTUNE_SCSP:
+ m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_NEPTUNE_DCSP:
+ m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_BMID:
- strcpy(str, "LP1150 4");
+ m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_BSMB:
- strcpy(str, "LP111 4");
+ m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
break;
case PCI_DEVICE_ID_ZEPHYR:
- if (hdrtype == 0x80)
- strcpy(str, "LPe11002 4");
- else
- strcpy(str, "LPe11000 4");
+ m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_ZEPHYR_SCSP:
+ m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_ZEPHYR_DCSP:
+ m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZMID:
- strcpy(str, "LPe1150 4");
+ m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZSMB:
- strcpy(str, "LPe111 4");
+ m = (typeof(m)){"LPe111", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_LP101:
- strcpy(str, "LP101 2");
+ m = (typeof(m)){"LP101", max_speed, "PCI-X"};
break;
case PCI_DEVICE_ID_LP10000S:
- strcpy(str, "LP10000-S 2");
+ m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
+ break;
+ case PCI_DEVICE_ID_LP11000S:
+ m = (typeof(m)){"LP11000-S", max_speed,
+ "PCI-X2"};
+ break;
+ case PCI_DEVICE_ID_LPE11000S:
+ m = (typeof(m)){"LPe11000-S", max_speed,
+ "PCIe"};
+ break;
+ case PCI_DEVICE_ID_SAT:
+ m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_SAT_MID:
+ m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_SAT_SMB:
+ m = (typeof(m)){"LPe121", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_SAT_DCSP:
+ m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_SAT_SCSP:
+ m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
+ break;
+ case PCI_DEVICE_ID_SAT_S:
+ m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
break;
default:
- memset(str, 0, 16);
+ m = (typeof(m)){ NULL };
break;
}
- if (mdp)
- sscanf(str, "%s", mdp);
- if (descp)
- sprintf(descp, "Emulex LightPulse %s Gigabit PCI Fibre "
- "Channel Adapter", str);
+
+ if (mdp && mdp[0] == '\0')
+ snprintf(mdp, 79,"%s", m.name);
+ if (descp && descp[0] == '\0')
+ snprintf(descp, 255,
+ "Emulex %s %dGb %s Fibre Channel Adapter",
+ m.name, m.max_speed, m.bus);
}
-/**************************************************/
-/* lpfc_post_buffer */
-/* */
-/* This routine will post count buffers to the */
-/* ring with the QUE_RING_BUF_CN command. This */
-/* allows 3 buffers / command to be posted. */
-/* Returns the number of buffers NOT posted. */
-/**************************************************/
+/**
+ * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring.
+ * @phba: pointer to lpfc hba data structure.
+ * @pring: pointer to a IOCB ring.
+ * @cnt: the number of IOCBs to be posted to the IOCB ring.
+ *
+ * This routine posts a given number of IOCBs with the associated DMA buffer
+ * descriptors specified by the cnt argument to the given IOCB ring.
+ *
+ * Return codes
+ * The number of IOCBs NOT able to be posted to the IOCB ring.
+ **/
int
-lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
- int type)
+lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
{
IOCB_t *icmd;
struct lpfc_iocbq *iocb;
/* While there are buffers to post */
while (cnt > 0) {
/* Allocate buffer for command iocb */
- spin_lock_irq(phba->host->host_lock);
iocb = lpfc_sli_get_iocbq(phba);
- spin_unlock_irq(phba->host->host_lock);
if (iocb == NULL) {
pring->missbufcnt = cnt;
return cnt;
/* Allocate buffer to post */
mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp1)
- mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
- &mp1->phys);
- if (mp1 == 0 || mp1->virt == 0) {
- if (mp1)
- kfree(mp1);
- spin_lock_irq(phba->host->host_lock);
+ mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
+ if (!mp1 || !mp1->virt) {
+ kfree(mp1);
lpfc_sli_release_iocbq(phba, iocb);
- spin_unlock_irq(phba->host->host_lock);
pring->missbufcnt = cnt;
return cnt;
}
if (mp2)
mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&mp2->phys);
- if (mp2 == 0 || mp2->virt == 0) {
- if (mp2)
- kfree(mp2);
+ if (!mp2 || !mp2->virt) {
+ kfree(mp2);
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
kfree(mp1);
- spin_lock_irq(phba->host->host_lock);
lpfc_sli_release_iocbq(phba, iocb);
- spin_unlock_irq(phba->host->host_lock);
pring->missbufcnt = cnt;
return cnt;
}
icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
icmd->ulpLe = 1;
- spin_lock_irq(phba->host->host_lock);
if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
kfree(mp1);
}
lpfc_sli_release_iocbq(phba, iocb);
pring->missbufcnt = cnt;
- spin_unlock_irq(phba->host->host_lock);
return cnt;
}
- spin_unlock_irq(phba->host->host_lock);
lpfc_sli_ringpostbuf_put(phba, pring, mp1);
- if (mp2) {
+ if (mp2)
lpfc_sli_ringpostbuf_put(phba, pring, mp2);
- }
}
pring->missbufcnt = 0;
return 0;
}
-/************************************************************************/
-/* */
-/* lpfc_post_rcv_buf */
-/* This routine post initial rcv buffers to the configured rings */
-/* */
-/************************************************************************/
+/**
+ * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine posts initial receive IOCB buffers to the ELS ring. The
+ * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
+ * set to 64 IOCBs.
+ *
+ * Return codes
+ * 0 - success (currently always success)
+ **/
static int
-lpfc_post_rcv_buf(struct lpfc_hba * phba)
+lpfc_post_rcv_buf(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
/* Ring 0, ELS / CT buffers */
- lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
+ lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
/* Ring 2 - FCP no buffers needed */
return 0;
#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
-/************************************************************************/
-/* */
-/* lpfc_sha_init */
-/* */
-/************************************************************************/
+/**
+ * lpfc_sha_init: Set up initial array of hash table entries.
+ * @HashResultPointer: pointer to an array as hash table.
+ *
+ * This routine sets up the initial values to the array of hash table entries
+ * for the LC HBAs.
+ **/
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
HashResultPointer[4] = 0xC3D2E1F0;
}
-/************************************************************************/
-/* */
-/* lpfc_sha_iterate */
-/* */
-/************************************************************************/
+/**
+ * lpfc_sha_iterate: Iterate initial hash table with the working hash table.
+ * @HashResultPointer: pointer to an initial/result hash table.
+ * @HashWorkingPointer: pointer to an working hash table.
+ *
+ * This routine iterates an initial hash table pointed by @HashResultPointer
+ * with the values from the working hash table pointeed by @HashWorkingPointer.
+ * The results are putting back to the initial hash table, returned through
+ * the @HashResultPointer as the result hash table.
+ **/
static void
lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
{
}
-/************************************************************************/
-/* */
-/* lpfc_challenge_key */
-/* */
-/************************************************************************/
+/**
+ * lpfc_challenge_key: Create challenge key based on WWPN of the HBA.
+ * @RandomChallenge: pointer to the entry of host challenge random number array.
+ * @HashWorking: pointer to the entry of the working hash array.
+ *
+ * This routine calculates the working hash array referred by @HashWorking
+ * from the challenge random numbers associated with the host, referred by
+ * @RandomChallenge. The result is put into the entry of the working hash
+ * array and returned by reference through @HashWorking.
+ **/
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
*HashWorking = (*RandomChallenge ^ *HashWorking);
}
-/************************************************************************/
-/* */
-/* lpfc_hba_init */
-/* */
-/************************************************************************/
+/**
+ * lpfc_hba_init: Perform special handling for LC HBA initialization.
+ * @phba: pointer to lpfc hba data structure.
+ * @hbainit: pointer to an array of unsigned 32-bit integers.
+ *
+ * This routine performs the special handling for LC HBA initialization.
+ **/
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
int t;
uint32_t *HashWorking;
- uint32_t *pwwnn = phba->wwnn;
+ uint32_t *pwwnn = (uint32_t *) phba->wwnn;
- HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
+ HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
if (!HashWorking)
return;
- memset(HashWorking, 0, (80 * sizeof(uint32_t)));
HashWorking[0] = HashWorking[78] = *pwwnn++;
HashWorking[1] = HashWorking[79] = *pwwnn;
kfree(HashWorking);
}
-static void
-lpfc_cleanup(struct lpfc_hba * phba, uint32_t save_bind)
+/**
+ * lpfc_cleanup: Performs vport cleanups before deleting a vport.
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine performs the necessary cleanups before deleting the @vport.
+ * It invokes the discovery state machine to perform necessary state
+ * transitions and to release the ndlps associated with the @vport. Note,
+ * the physical port is treated as @vport 0.
+ **/
+void
+lpfc_cleanup(struct lpfc_vport *vport)
{
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp, *next_ndlp;
+ int i = 0;
- /* clean up phba - lpfc specific */
- lpfc_can_disctmo(phba);
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
- }
+ if (phba->link_state > LPFC_LINK_DOWN)
+ lpfc_port_link_failure(vport);
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
- }
-
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
- nlp_listp) {
- lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
- }
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp)) {
+ ndlp = lpfc_enable_node(vport, ndlp,
+ NLP_STE_UNUSED_NODE);
+ if (!ndlp)
+ continue;
+ spin_lock_irq(&phba->ndlp_lock);
+ NLP_SET_FREE_REQ(ndlp);
+ spin_unlock_irq(&phba->ndlp_lock);
+ /* Trigger the release of the ndlp memory */
+ lpfc_nlp_put(ndlp);
+ continue;
+ }
+ spin_lock_irq(&phba->ndlp_lock);
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ /* The ndlp should not be in memory free mode already */
+ spin_unlock_irq(&phba->ndlp_lock);
+ continue;
+ } else
+ /* Indicate request for freeing ndlp memory */
+ NLP_SET_FREE_REQ(ndlp);
+ spin_unlock_irq(&phba->ndlp_lock);
+
+ if (vport->port_type != LPFC_PHYSICAL_PORT &&
+ ndlp->nlp_DID == Fabric_DID) {
+ /* Just free up ndlp with Fabric_DID for vports */
+ lpfc_nlp_put(ndlp);
+ continue;
+ }
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
- }
+ if (ndlp->nlp_type & NLP_FABRIC)
+ lpfc_disc_state_machine(vport, ndlp, NULL,
+ NLP_EVT_DEVICE_RECOVERY);
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
- }
+ lpfc_disc_state_machine(vport, ndlp, NULL,
+ NLP_EVT_DEVICE_RM);
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
+ /* nlp_type zero is not defined, nlp_flag zero also not defined,
+ * nlp_state is unused, this happens when
+ * an initiator has logged
+ * into us so cleanup this ndlp.
+ */
+ if ((ndlp->nlp_type == 0) && (ndlp->nlp_flag == 0) &&
+ (ndlp->nlp_state == 0))
+ lpfc_nlp_put(ndlp);
}
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
- }
+ /* At this point, ALL ndlp's should be gone
+ * because of the previous NLP_EVT_DEVICE_RM.
+ * Lets wait for this to happen, if needed.
+ */
+ while (!list_empty(&vport->fc_nodes)) {
+
+ if (i++ > 3000) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0233 Nodelist not empty\n");
+ list_for_each_entry_safe(ndlp, next_ndlp,
+ &vport->fc_nodes, nlp_listp) {
+ lpfc_printf_vlog(ndlp->vport, KERN_ERR,
+ LOG_NODE,
+ "0282: did:x%x ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ ndlp->nlp_DID, (void *)ndlp,
+ ndlp->nlp_usg_map,
+ atomic_read(
+ &ndlp->kref.refcount));
+ }
+ break;
+ }
- list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
- nlp_listp) {
- lpfc_nlp_remove(phba, ndlp);
+ /* Wait for any activity on ndlps to settle */
+ msleep(10);
}
+ return;
+}
- INIT_LIST_HEAD(&phba->fc_nlpmap_list);
- INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
- INIT_LIST_HEAD(&phba->fc_unused_list);
- INIT_LIST_HEAD(&phba->fc_plogi_list);
- INIT_LIST_HEAD(&phba->fc_adisc_list);
- INIT_LIST_HEAD(&phba->fc_reglogin_list);
- INIT_LIST_HEAD(&phba->fc_prli_list);
- INIT_LIST_HEAD(&phba->fc_npr_list);
-
- phba->fc_map_cnt = 0;
- phba->fc_unmap_cnt = 0;
- phba->fc_plogi_cnt = 0;
- phba->fc_adisc_cnt = 0;
- phba->fc_reglogin_cnt = 0;
- phba->fc_prli_cnt = 0;
- phba->fc_npr_cnt = 0;
- phba->fc_unused_cnt= 0;
+/**
+ * lpfc_stop_vport_timers: Stop all the timers associated with a vport.
+ * @vport: pointer to a virtual N_Port data structure.
+ *
+ * This routine stops all the timers associated with a @vport. This function
+ * is invoked before disabling or deleting a @vport. Note that the physical
+ * port is treated as @vport 0.
+ **/
+void
+lpfc_stop_vport_timers(struct lpfc_vport *vport)
+{
+ del_timer_sync(&vport->els_tmofunc);
+ del_timer_sync(&vport->fc_fdmitmo);
+ lpfc_can_disctmo(vport);
return;
}
+/**
+ * lpfc_stop_phba_timers: Stop all the timers associated with an HBA.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine stops all the timers associated with a HBA. This function is
+ * invoked before either putting a HBA offline or unloading the driver.
+ **/
static void
-lpfc_establish_link_tmo(unsigned long ptr)
+lpfc_stop_phba_timers(struct lpfc_hba *phba)
{
- struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
- unsigned long iflag;
-
-
- /* Re-establishing Link, timer expired */
- lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
- "%d:1300 Re-establishing Link, timer expired "
- "Data: x%x x%x\n",
- phba->brd_no, phba->fc_flag, phba->hba_state);
- spin_lock_irqsave(phba->host->host_lock, iflag);
- phba->fc_flag &= ~FC_ESTABLISH_LINK;
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
+ del_timer_sync(&phba->fcp_poll_timer);
+ lpfc_stop_vport_timers(phba->pport);
+ del_timer_sync(&phba->sli.mbox_tmo);
+ del_timer_sync(&phba->fabric_block_timer);
+ phba->hb_outstanding = 0;
+ del_timer_sync(&phba->hb_tmofunc);
+ return;
}
-static int
-lpfc_stop_timer(struct lpfc_hba * phba)
+/**
+ * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine marks a HBA's management interface as blocked. Once the HBA's
+ * management interface is marked as blocked, all the user space access to
+ * the HBA, whether they are from sysfs interface or libdfc interface will
+ * all be blocked. The HBA is set to block the management interface when the
+ * driver prepares the HBA interface for online or offline.
+ **/
+static void
+lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
- struct lpfc_sli *psli = &phba->sli;
-
- /* Instead of a timer, this has been converted to a
- * deferred procedding list.
- */
- while (!list_empty(&phba->freebufList)) {
-
- struct lpfc_dmabuf *mp = NULL;
-
- list_remove_head((&phba->freebufList), mp,
- struct lpfc_dmabuf, list);
- if (mp) {
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- }
- }
+ unsigned long iflag;
- del_timer_sync(&phba->fc_estabtmo);
- del_timer_sync(&phba->fc_disctmo);
- del_timer_sync(&phba->fc_fdmitmo);
- del_timer_sync(&phba->els_tmofunc);
- psli = &phba->sli;
- del_timer_sync(&psli->mbox_tmo);
- return(1);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
}
+/**
+ * lpfc_online: Initialize and bring a HBA online.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine initializes the HBA and brings a HBA online. During this
+ * process, the management interface is blocked to prevent user space access
+ * to the HBA interfering with the driver initialization.
+ *
+ * Return codes
+ * 0 - successful
+ * 1 - failed
+ **/
int
-lpfc_online(struct lpfc_hba * phba)
+lpfc_online(struct lpfc_hba *phba)
{
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_vport **vports;
+ int i;
+
if (!phba)
return 0;
- if (!(phba->fc_flag & FC_OFFLINE_MODE))
+ if (!(vport->fc_flag & FC_OFFLINE_MODE))
return 0;
- lpfc_printf_log(phba,
- KERN_WARNING,
- LOG_INIT,
- "%d:0458 Bring Adapter online\n",
- phba->brd_no);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0458 Bring Adapter online\n");
+
+ lpfc_block_mgmt_io(phba);
- if (!lpfc_sli_queue_setup(phba))
+ if (!lpfc_sli_queue_setup(phba)) {
+ lpfc_unblock_mgmt_io(phba);
return 1;
+ }
- if (lpfc_sli_hba_setup(phba)) /* Initialize the HBA */
+ if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */
+ lpfc_unblock_mgmt_io(phba);
return 1;
+ }
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_OFFLINE_MODE;
- spin_unlock_irq(phba->host->host_lock);
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+ struct Scsi_Host *shost;
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ lpfc_unblock_mgmt_io(phba);
return 0;
}
-int
-lpfc_offline(struct lpfc_hba * phba)
+/**
+ * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine marks a HBA's management interface as not blocked. Once the
+ * HBA's management interface is marked as not blocked, all the user space
+ * access to the HBA, whether they are from sysfs interface or libdfc
+ * interface will be allowed. The HBA is set to block the management interface
+ * when the driver prepares the HBA interface for online or offline and then
+ * set to unblock the management interface afterwards.
+ **/
+void
+lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
- struct lpfc_sli_ring *pring;
- struct lpfc_sli *psli;
unsigned long iflag;
- int i = 0;
- if (!phba)
- return 0;
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+}
- if (phba->fc_flag & FC_OFFLINE_MODE)
- return 0;
+/**
+ * lpfc_offline_prep: Prepare a HBA to be brought offline.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to prepare a HBA to be brought offline. It performs
+ * unregistration login to all the nodes on all vports and flushes the mailbox
+ * queue to make it ready to be brought offline.
+ **/
+void
+lpfc_offline_prep(struct lpfc_hba * phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ struct lpfc_vport **vports;
+ int i;
- psli = &phba->sli;
- pring = &psli->ring[psli->fcp_ring];
+ if (vport->fc_flag & FC_OFFLINE_MODE)
+ return;
+
+ lpfc_block_mgmt_io(phba);
lpfc_linkdown(phba);
- /* The linkdown event takes 30 seconds to timeout. */
- while (pring->txcmplq_cnt) {
- mdelay(10);
- if (i++ > 3000)
- break;
+ /* Issue an unreg_login to all nodes on all vports */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL) {
+ for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+ struct Scsi_Host *shost;
+
+ if (vports[i]->load_flag & FC_UNLOADING)
+ continue;
+ shost = lpfc_shost_from_vport(vports[i]);
+ list_for_each_entry_safe(ndlp, next_ndlp,
+ &vports[i]->fc_nodes,
+ nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ continue;
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ lpfc_disc_state_machine(vports[i], ndlp,
+ NULL, NLP_EVT_DEVICE_RECOVERY);
+ lpfc_disc_state_machine(vports[i], ndlp,
+ NULL, NLP_EVT_DEVICE_RM);
+ }
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_NPR_ADISC;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_unreg_rpi(vports[i], ndlp);
+ }
+ }
}
+ lpfc_destroy_vport_work_array(phba, vports);
- /* stop all timers associated with this hba */
- lpfc_stop_timer(phba);
- phba->work_hba_events = 0;
+ lpfc_sli_flush_mbox_queue(phba);
+}
+
+/**
+ * lpfc_offline: Bring a HBA offline.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine actually brings a HBA offline. It stops all the timers
+ * associated with the HBA, brings down the SLI layer, and eventually
+ * marks the HBA as in offline state for the upper layer protocol.
+ **/
+void
+lpfc_offline(struct lpfc_hba *phba)
+{
+ struct Scsi_Host *shost;
+ struct lpfc_vport **vports;
+ int i;
- lpfc_printf_log(phba,
- KERN_WARNING,
- LOG_INIT,
- "%d:0460 Bring Adapter offline\n",
- phba->brd_no);
+ if (phba->pport->fc_flag & FC_OFFLINE_MODE)
+ return;
+ /* stop all timers associated with this hba */
+ lpfc_stop_phba_timers(phba);
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
+ lpfc_stop_vport_timers(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0460 Bring Adapter offline\n");
/* Bring down the SLI Layer and cleanup. The HBA is offline
now. */
lpfc_sli_hba_down(phba);
- lpfc_cleanup(phba, 1);
- spin_lock_irqsave(phba->host->host_lock, iflag);
- phba->fc_flag |= FC_OFFLINE_MODE;
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
- return 0;
+ spin_lock_irq(&phba->hbalock);
+ phba->work_ha = 0;
+ 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++) {
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ vports[i]->work_port_events = 0;
+ vports[i]->fc_flag |= FC_OFFLINE_MODE;
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
}
-/******************************************************************************
-* Function name: lpfc_scsi_free
-*
-* Description: Called from lpfc_pci_remove_one free internal driver resources
-*
-******************************************************************************/
+/**
+ * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to free all the SCSI buffers and IOCBs from the driver
+ * list back to kernel. It is called from lpfc_pci_remove_one to free
+ * the internal resources before the device is removed from the system.
+ *
+ * Return codes
+ * 0 - successful (for now, it always returns 0)
+ **/
static int
-lpfc_scsi_free(struct lpfc_hba * phba)
+lpfc_scsi_free(struct lpfc_hba *phba)
{
struct lpfc_scsi_buf *sb, *sb_next;
struct lpfc_iocbq *io, *io_next;
- spin_lock_irq(phba->host->host_lock);
+ spin_lock_irq(&phba->hbalock);
/* Release all the lpfc_scsi_bufs maintained by this host. */
list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
list_del(&sb->list);
pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
- sb->dma_handle);
+ sb->dma_handle);
kfree(sb);
phba->total_scsi_bufs--;
}
phba->total_iocbq_bufs--;
}
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
return 0;
}
+/**
+ * lpfc_create_port: Create an FC port.
+ * @phba: pointer to lpfc hba data structure.
+ * @instance: a unique integer ID to this FC port.
+ * @dev: pointer to the device data structure.
+ *
+ * This routine creates a FC port for the upper layer protocol. The FC port
+ * can be created on top of either a physical port or a virtual port provided
+ * by the HBA. This routine also allocates a SCSI host data structure (shost)
+ * and associates the FC port created before adding the shost into the SCSI
+ * layer.
+ *
+ * Return codes
+ * @vport - pointer to the virtual N_Port data structure.
+ * NULL - port create failed.
+ **/
+struct lpfc_vport *
+lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
+{
+ struct lpfc_vport *vport;
+ struct Scsi_Host *shost;
+ int error = 0;
+
+ if (dev != &phba->pcidev->dev)
+ shost = scsi_host_alloc(&lpfc_vport_template,
+ sizeof(struct lpfc_vport));
+ else
+ shost = scsi_host_alloc(&lpfc_template,
+ sizeof(struct lpfc_vport));
+ if (!shost)
+ goto out;
+
+ vport = (struct lpfc_vport *) shost->hostdata;
+ vport->phba = phba;
+ vport->load_flag |= FC_LOADING;
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ vport->fc_rscn_flush = 0;
+
+ lpfc_get_vport_cfgparam(vport);
+ shost->unique_id = instance;
+ shost->max_id = LPFC_MAX_TARGET;
+ shost->max_lun = vport->cfg_max_luns;
+ shost->this_id = -1;
+ shost->max_cmd_len = 16;
+ /*
+ * Set initial can_queue value since 0 is no longer supported and
+ * scsi_add_host will fail. This will be adjusted later based on the
+ * max xri value determined in hba setup.
+ */
+ shost->can_queue = phba->cfg_hba_queue_depth - 10;
+ if (dev != &phba->pcidev->dev) {
+ shost->transportt = lpfc_vport_transport_template;
+ vport->port_type = LPFC_NPIV_PORT;
+ } else {
+ shost->transportt = lpfc_transport_template;
+ vport->port_type = LPFC_PHYSICAL_PORT;
+ }
+
+ /* Initialize all internally managed lists. */
+ INIT_LIST_HEAD(&vport->fc_nodes);
+ spin_lock_init(&vport->work_port_lock);
+
+ init_timer(&vport->fc_disctmo);
+ vport->fc_disctmo.function = lpfc_disc_timeout;
+ vport->fc_disctmo.data = (unsigned long)vport;
+
+ init_timer(&vport->fc_fdmitmo);
+ vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
+ vport->fc_fdmitmo.data = (unsigned long)vport;
+
+ init_timer(&vport->els_tmofunc);
+ vport->els_tmofunc.function = lpfc_els_timeout;
+ vport->els_tmofunc.data = (unsigned long)vport;
+
+ error = scsi_add_host(shost, dev);
+ if (error)
+ goto out_put_shost;
+
+ spin_lock_irq(&phba->hbalock);
+ list_add_tail(&vport->listentry, &phba->port_list);
+ spin_unlock_irq(&phba->hbalock);
+ return vport;
+
+out_put_shost:
+ scsi_host_put(shost);
+out:
+ return NULL;
+}
+/**
+ * destroy_port: Destroy an FC port.
+ * @vport: pointer to an lpfc virtual N_Port data structure.
+ *
+ * This routine destroys a FC port from the upper layer protocol. All the
+ * resources associated with the port are released.
+ **/
+void
+destroy_port(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+
+ kfree(vport->vname);
+
+ lpfc_debugfs_terminate(vport);
+ fc_remove_host(shost);
+ scsi_remove_host(shost);
+
+ spin_lock_irq(&phba->hbalock);
+ list_del_init(&vport->listentry);
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_cleanup(vport);
+ return;
+}
+
+/**
+ * lpfc_get_instance: Get a unique integer ID.
+ *
+ * This routine allocates a unique integer ID from lpfc_hba_index pool. It
+ * uses the kernel idr facility to perform the task.
+ *
+ * Return codes:
+ * instance - a unique integer ID allocated as the new instance.
+ * -1 - lpfc get instance failed.
+ **/
+int
+lpfc_get_instance(void)
+{
+ int instance = 0;
+
+ /* Assign an unused number */
+ if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
+ return -1;
+ if (idr_get_new(&lpfc_hba_index, NULL, &instance))
+ return -1;
+ return instance;
+}
+
+/**
+ * lpfc_scan_finished: method for SCSI layer to detect whether scan is done.
+ * @shost: pointer to SCSI host data structure.
+ * @time: elapsed time of the scan in jiffies.
+ *
+ * This routine is called by the SCSI layer with a SCSI host to determine
+ * whether the scan host is finished.
+ *
+ * Note: there is no scan_start function as adapter initialization will have
+ * asynchronously kicked off the link initialization.
+ *
+ * Return codes
+ * 0 - SCSI host scan is not over yet.
+ * 1 - SCSI host scan is over.
+ **/
+int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+ int stat = 0;
+
+ spin_lock_irq(shost->host_lock);
+
+ if (vport->load_flag & FC_UNLOADING) {
+ stat = 1;
+ goto finished;
+ }
+ if (time >= 30 * HZ) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0461 Scanning longer than 30 "
+ "seconds. Continuing initialization\n");
+ stat = 1;
+ goto finished;
+ }
+ if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0465 Link down longer than 15 "
+ "seconds. Continuing initialization\n");
+ stat = 1;
+ goto finished;
+ }
+
+ if (vport->port_state != LPFC_VPORT_READY)
+ goto finished;
+ if (vport->num_disc_nodes || vport->fc_prli_sent)
+ goto finished;
+ if (vport->fc_map_cnt == 0 && time < 2 * HZ)
+ goto finished;
+ if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
+ goto finished;
+
+ stat = 1;
+
+finished:
+ spin_unlock_irq(shost->host_lock);
+ return stat;
+}
+
+/**
+ * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port.
+ * @shost: pointer to SCSI host data structure.
+ *
+ * This routine initializes a given SCSI host attributes on a FC port. The
+ * SCSI host can be either on top of a physical port or a virtual port.
+ **/
+void lpfc_host_attrib_init(struct Scsi_Host *shost)
+{
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+ /*
+ * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
+ */
+
+ fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
+ fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
+ fc_host_supported_classes(shost) = FC_COS_CLASS3;
+
+ memset(fc_host_supported_fc4s(shost), 0,
+ sizeof(fc_host_supported_fc4s(shost)));
+ fc_host_supported_fc4s(shost)[2] = 1;
+ fc_host_supported_fc4s(shost)[7] = 1;
+
+ lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
+ sizeof fc_host_symbolic_name(shost));
+
+ fc_host_supported_speeds(shost) = 0;
+ if (phba->lmt & LMT_10Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
+ if (phba->lmt & LMT_8Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
+ if (phba->lmt & LMT_4Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
+ if (phba->lmt & LMT_2Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
+ if (phba->lmt & LMT_1Gb)
+ fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
+
+ fc_host_maxframe_size(shost) =
+ (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
+ (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
+
+ /* This value is also unchanging */
+ memset(fc_host_active_fc4s(shost), 0,
+ sizeof(fc_host_active_fc4s(shost)));
+ fc_host_active_fc4s(shost)[2] = 1;
+ fc_host_active_fc4s(shost)[7] = 1;
+
+ fc_host_max_npiv_vports(shost) = phba->max_vpi;
+ spin_lock_irq(shost->host_lock);
+ vport->load_flag &= ~FC_LOADING;
+ spin_unlock_irq(shost->host_lock);
+}
+
+/**
+ * lpfc_enable_msix: Enable MSI-X interrupt mode.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI-X interrupt vectors. The kernel
+ * function pci_enable_msix() is called to enable the MSI-X vectors. Note that
+ * pci_enable_msix(), once invoked, enables either all or nothing, depending
+ * on the current availability of PCI vector resources. The device driver is
+ * responsible for calling the individual request_irq() to register each MSI-X
+ * vector with a interrupt handler, which is done in this function. Note that
+ * later when device is unloading, the driver should always call free_irq()
+ * on all MSI-X vectors it has done request_irq() on before calling
+ * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
+ * will be left with MSI-X enabled and leaks its vectors.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static int
+lpfc_enable_msix(struct lpfc_hba *phba)
+{
+ int error;
+
+ phba->msix_entries[0].entry = 0;
+ phba->msix_entries[0].vector = 0;
+
+ error = pci_enable_msix(phba->pcidev, phba->msix_entries,
+ ARRAY_SIZE(phba->msix_entries));
+ if (error) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0420 Enable MSI-X failed (%d), continuing "
+ "with MSI\n", error);
+ pci_disable_msix(phba->pcidev);
+ return error;
+ }
+
+ error = request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0,
+ LPFC_DRIVER_NAME, phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0421 MSI-X request_irq failed (%d), "
+ "continuing with MSI\n", error);
+ pci_disable_msix(phba->pcidev);
+ }
+ return error;
+}
+
+/**
+ * lpfc_disable_msix: Disable MSI-X interrupt mode.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release the MSI-X vectors and then disable the
+ * MSI-X interrupt mode.
+ **/
+static void
+lpfc_disable_msix(struct lpfc_hba *phba)
+{
+ free_irq(phba->msix_entries[0].vector, phba);
+ pci_disable_msix(phba->pcidev);
+}
+
+/**
+ * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem.
+ * @pdev: pointer to PCI device
+ * @pid: pointer to PCI device identifier
+ *
+ * This routine is to be registered to the kernel's PCI subsystem. When an
+ * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at
+ * PCI device-specific information of the device and driver to see if the
+ * driver state that it can support this kind of device. If the match is
+ * successful, the driver core invokes this routine. If this routine
+ * determines it can claim the HBA, it does all the initialization that it
+ * needs to do to handle the HBA properly.
+ *
+ * Return code
+ * 0 - driver can claim the device
+ * negative value - driver can not claim the device
+ **/
static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
- struct Scsi_Host *host;
- struct lpfc_hba *phba;
- struct lpfc_sli *psli;
+ struct lpfc_vport *vport = NULL;
+ struct lpfc_hba *phba;
+ struct lpfc_sli *psli;
struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
+ struct Scsi_Host *shost = NULL;
+ void *ptr;
unsigned long bar0map_len, bar2map_len;
int error = -ENODEV, retval;
- int i;
+ int i, hbq_count;
uint16_t iotag;
+ int bars = pci_select_bars(pdev, IORESOURCE_MEM);
- if (pci_enable_device(pdev))
+ if (pci_enable_device_mem(pdev))
goto out;
- if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
+ if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
goto out_disable_device;
- host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba));
- if (!host)
+ phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
+ if (!phba)
goto out_release_regions;
- phba = (struct lpfc_hba*)host->hostdata;
- memset(phba, 0, sizeof (struct lpfc_hba));
- phba->host = host;
+ spin_lock_init(&phba->hbalock);
+
+ /* Initialize ndlp management spinlock */
+ spin_lock_init(&phba->ndlp_lock);
- phba->fc_flag |= FC_LOADING;
phba->pcidev = pdev;
/* Assign an unused board number */
- if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
- goto out_put_host;
-
- error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
- if (error)
- goto out_put_host;
-
- host->unique_id = phba->brd_no;
-
- INIT_LIST_HEAD(&phba->ctrspbuflist);
- INIT_LIST_HEAD(&phba->rnidrspbuflist);
- INIT_LIST_HEAD(&phba->freebufList);
-
- /* Initialize timers used by driver */
- init_timer(&phba->fc_estabtmo);
- phba->fc_estabtmo.function = lpfc_establish_link_tmo;
- phba->fc_estabtmo.data = (unsigned long)phba;
- init_timer(&phba->fc_disctmo);
- phba->fc_disctmo.function = lpfc_disc_timeout;
- phba->fc_disctmo.data = (unsigned long)phba;
-
- init_timer(&phba->fc_fdmitmo);
- phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
- phba->fc_fdmitmo.data = (unsigned long)phba;
- init_timer(&phba->els_tmofunc);
- phba->els_tmofunc.function = lpfc_els_timeout;
- phba->els_tmofunc.data = (unsigned long)phba;
- psli = &phba->sli;
- init_timer(&psli->mbox_tmo);
- psli->mbox_tmo.function = lpfc_mbox_timeout;
- psli->mbox_tmo.data = (unsigned long)phba;
+ if ((phba->brd_no = lpfc_get_instance()) < 0)
+ goto out_free_phba;
+ INIT_LIST_HEAD(&phba->port_list);
/*
* Get all the module params for configuring this host and then
- * establish the host parameters.
+ * establish the host.
*/
lpfc_get_cfgparam(phba);
+ phba->max_vpi = LPFC_MAX_VPI;
- host->max_id = LPFC_MAX_TARGET;
- host->max_lun = phba->cfg_max_luns;
- host->this_id = -1;
-
- /* Initialize all internally managed lists. */
- INIT_LIST_HEAD(&phba->fc_nlpmap_list);
- INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
- INIT_LIST_HEAD(&phba->fc_unused_list);
- INIT_LIST_HEAD(&phba->fc_plogi_list);
- INIT_LIST_HEAD(&phba->fc_adisc_list);
- INIT_LIST_HEAD(&phba->fc_reglogin_list);
- INIT_LIST_HEAD(&phba->fc_prli_list);
- INIT_LIST_HEAD(&phba->fc_npr_list);
+ /* Initialize timers used by driver */
+ init_timer(&phba->hb_tmofunc);
+ phba->hb_tmofunc.function = lpfc_hb_timeout;
+ phba->hb_tmofunc.data = (unsigned long)phba;
+ psli = &phba->sli;
+ init_timer(&psli->mbox_tmo);
+ psli->mbox_tmo.function = lpfc_mbox_timeout;
+ psli->mbox_tmo.data = (unsigned long) phba;
+ init_timer(&phba->fcp_poll_timer);
+ phba->fcp_poll_timer.function = lpfc_poll_timeout;
+ phba->fcp_poll_timer.data = (unsigned long) phba;
+ init_timer(&phba->fabric_block_timer);
+ phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
+ phba->fabric_block_timer.data = (unsigned long) phba;
pci_set_master(pdev);
- retval = pci_set_mwi(pdev);
- if (retval)
- dev_printk(KERN_WARNING, &pdev->dev,
- "Warning: pci_set_mwi returned %d\n", retval);
+ pci_try_set_mwi(pdev);
if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
bar2map_len = pci_resource_len(phba->pcidev, 2);
- /* Map HBA SLIM and Control Registers to a kernel virtual address. */
+ /* Map HBA SLIM to a kernel virtual address. */
phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
+ if (!phba->slim_memmap_p) {
+ error = -ENODEV;
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLIM memory.\n");
+ goto out_idr_remove;
+ }
+
+ /* Map HBA Control Registers to a kernel virtual address. */
phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
+ if (!phba->ctrl_regs_memmap_p) {
+ error = -ENODEV;
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for HBA control registers.\n");
+ goto out_iounmap_slim;
+ }
/* Allocate memory for SLI-2 structures */
phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
+ phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev,
+ lpfc_sli_hbq_size(),
+ &phba->hbqslimp.phys,
+ GFP_KERNEL);
+ if (!phba->hbqslimp.virt)
+ goto out_free_slim;
+
+ hbq_count = lpfc_sli_hbq_count();
+ ptr = phba->hbqslimp.virt;
+ for (i = 0; i < hbq_count; ++i) {
+ phba->hbqs[i].hbq_virt = ptr;
+ INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
+ ptr += (lpfc_hbq_defs[i]->entry_count *
+ sizeof(struct lpfc_hbq_entry));
+ }
+ phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
+ phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
+
+ memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
+
+ INIT_LIST_HEAD(&phba->hbqbuf_in_list);
+
/* Initialize the SLI Layer to run with lpfc HBAs. */
lpfc_sli_setup(phba);
lpfc_sli_queue_setup(phba);
- error = lpfc_mem_alloc(phba);
- if (error)
- goto out_free_slim;
+ retval = lpfc_mem_alloc(phba);
+ if (retval) {
+ error = retval;
+ goto out_free_hbqslimp;
+ }
/* Initialize and populate the iocb list per host. */
INIT_LIST_HEAD(&phba->lpfc_iocb_list);
for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
- iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
+ iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
if (iocbq_entry == NULL) {
printk(KERN_ERR "%s: only allocated %d iocbs of "
"expected %d count. Unloading driver.\n",
- __FUNCTION__, i, LPFC_IOCB_LIST_CNT);
+ __func__, i, LPFC_IOCB_LIST_CNT);
error = -ENOMEM;
goto out_free_iocbq;
}
- memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
if (iotag == 0) {
kfree (iocbq_entry);
printk(KERN_ERR "%s: failed to allocate IOTAG. "
"Unloading driver.\n",
- __FUNCTION__);
+ __func__);
error = -ENOMEM;
goto out_free_iocbq;
}
- spin_lock_irq(phba->host->host_lock);
+
+ spin_lock_irq(&phba->hbalock);
list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
phba->total_iocbq_bufs++;
- spin_unlock_irq(phba->host->host_lock);
+ spin_unlock_irq(&phba->hbalock);
}
/* Initialize HBA structure */
phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
+ /* Initialize the wait queue head for the kernel thread */
+ init_waitqueue_head(&phba->work_waitq);
+
/* Startup the kernel thread for this host adapter. */
phba->worker_thread = kthread_run(lpfc_do_work, phba,
"lpfc_worker_%d", phba->brd_no);
goto out_free_iocbq;
}
- /* We can rely on a queue depth attribute only after SLI HBA setup */
- host->can_queue = phba->cfg_hba_queue_depth - 10;
-
- /* Tell the midlayer we support 16 byte commands */
- host->max_cmd_len = 16;
-
/* Initialize the list of scsi buffers used by driver for scsi IO. */
+ spin_lock_init(&phba->scsi_buf_list_lock);
INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
- host->transportt = lpfc_transport_template;
- host->hostdata[0] = (unsigned long)phba;
- pci_set_drvdata(pdev, host);
- error = scsi_add_host(host, &pdev->dev);
- if (error)
- goto out_kthread_stop;
+ /* Initialize list of fabric iocbs */
+ INIT_LIST_HEAD(&phba->fabric_iocb_list);
- error = lpfc_alloc_sysfs_attr(phba);
- if (error)
+ /* Initialize list to save ELS buffers */
+ INIT_LIST_HEAD(&phba->elsbuf);
+
+ vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
+ if (!vport)
goto out_kthread_stop;
- error = request_irq(phba->pcidev->irq, lpfc_intr_handler, SA_SHIRQ,
- LPFC_DRIVER_NAME, phba);
- if (error) {
- lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "%d:0451 Enable interrupt handler failed\n",
- phba->brd_no);
- goto out_free_sysfs_attr;
+ shost = lpfc_shost_from_vport(vport);
+ phba->pport = vport;
+ lpfc_debugfs_initialize(vport);
+
+ pci_set_drvdata(pdev, shost);
+ phba->intr_type = NONE;
+
+ if (phba->cfg_use_msi == 2) {
+ error = lpfc_enable_msix(phba);
+ if (!error)
+ phba->intr_type = MSIX;
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
+ retval = pci_enable_msi(phba->pcidev);
+ if (!retval)
+ phba->intr_type = MSI;
+ else
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0452 Enable MSI failed, continuing "
+ "with IRQ\n");
+ }
+
+ /* MSI-X is the only case the doesn't need to call request_irq */
+ if (phba->intr_type != MSIX) {
+ retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (retval) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable "
+ "interrupt handler failed\n");
+ error = retval;
+ goto out_disable_msi;
+ } else if (phba->intr_type != MSI)
+ phba->intr_type = INTx;
}
+
phba->MBslimaddr = phba->slim_memmap_p;
phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
- error = lpfc_sli_hba_setup(phba);
- if (error)
+ if (lpfc_alloc_sysfs_attr(vport)) {
+ error = -ENOMEM;
goto out_free_irq;
+ }
+
+ if (lpfc_sli_hba_setup(phba)) {
+ error = -ENODEV;
+ goto out_remove_device;
+ }
/*
- * set fixed host attributes
- * Must done after lpfc_sli_hba_setup()
+ * hba setup may have changed the hba_queue_depth so we need to adjust
+ * the value of can_queue.
*/
+ shost->can_queue = phba->cfg_hba_queue_depth - 10;
- fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
- fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
- fc_host_supported_classes(host) = FC_COS_CLASS3;
-
- memset(fc_host_supported_fc4s(host), 0,
- sizeof(fc_host_supported_fc4s(host)));
- fc_host_supported_fc4s(host)[2] = 1;
- fc_host_supported_fc4s(host)[7] = 1;
-
- lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));
+ lpfc_host_attrib_init(shost);
- fc_host_supported_speeds(host) = 0;
- switch (FC_JEDEC_ID(phba->vpd.rev.biuRev)) {
- case VIPER_JEDEC_ID:
- fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
- break;
- case HELIOS_JEDEC_ID:
- fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
- /* Fall through */
- case CENTAUR_2G_JEDEC_ID:
- case PEGASUS_JEDEC_ID:
- case THOR_JEDEC_ID:
- fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
- /* Fall through */
- default:
- fc_host_supported_speeds(host) = FC_PORTSPEED_1GBIT;
+ if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+ spin_lock_irq(shost->host_lock);
+ lpfc_poll_start_timer(phba);
+ spin_unlock_irq(shost->host_lock);
}
- fc_host_maxframe_size(host) =
- ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
- (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);
+ scsi_scan_host(shost);
- /* This value is also unchanging */
- memset(fc_host_active_fc4s(host), 0,
- sizeof(fc_host_active_fc4s(host)));
- fc_host_active_fc4s(host)[2] = 1;
- fc_host_active_fc4s(host)[7] = 1;
-
- spin_lock_irq(phba->host->host_lock);
- phba->fc_flag &= ~FC_LOADING;
- spin_unlock_irq(phba->host->host_lock);
return 0;
+out_remove_device:
+ lpfc_free_sysfs_attr(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(shost->host_lock);
out_free_irq:
- lpfc_stop_timer(phba);
- phba->work_hba_events = 0;
- free_irq(phba->pcidev->irq, phba);
-out_free_sysfs_attr:
- lpfc_free_sysfs_attr(phba);
+ lpfc_stop_phba_timers(phba);
+ phba->pport->work_port_events = 0;
+
+ if (phba->intr_type == MSIX)
+ lpfc_disable_msix(phba);
+ else
+ free_irq(phba->pcidev->irq, phba);
+
+out_disable_msi:
+ if (phba->intr_type == MSI)
+ pci_disable_msi(phba->pcidev);
+ destroy_port(vport);
out_kthread_stop:
kthread_stop(phba->worker_thread);
out_free_iocbq:
list_for_each_entry_safe(iocbq_entry, iocbq_next,
&phba->lpfc_iocb_list, list) {
- spin_lock_irq(phba->host->host_lock);
kfree(iocbq_entry);
phba->total_iocbq_bufs--;
- spin_unlock_irq(phba->host->host_lock);
}
lpfc_mem_free(phba);
+out_free_hbqslimp:
+ dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt,
+ phba->hbqslimp.phys);
out_free_slim:
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
phba->slim2p_mapping);
out_iounmap:
iounmap(phba->ctrl_regs_memmap_p);
+out_iounmap_slim:
iounmap(phba->slim_memmap_p);
out_idr_remove:
idr_remove(&lpfc_hba_index, phba->brd_no);
-out_put_host:
- scsi_host_put(host);
+out_free_phba:
+ kfree(phba);
out_release_regions:
- pci_release_regions(pdev);
+ pci_release_selected_regions(pdev, bars);
out_disable_device:
pci_disable_device(pdev);
out:
+ pci_set_drvdata(pdev, NULL);
+ if (shost)
+ scsi_host_put(shost);
return error;
}
+/**
+ * lpfc_pci_remove_one: lpfc PCI func to unregister device from PCI subsystem.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be registered to the kernel's PCI subsystem. When an
+ * Emulex HBA is removed from PCI bus. It perform all the necessary cleanup
+ * for the HBA device to be removed from the PCI subsystem properly.
+ **/
static void __devexit
lpfc_pci_remove_one(struct pci_dev *pdev)
{
- struct Scsi_Host *host = pci_get_drvdata(pdev);
- struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata[0];
- unsigned long iflag;
-
- lpfc_free_sysfs_attr(phba);
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+ int bars = pci_select_bars(pdev, IORESOURCE_MEM);
- spin_lock_irqsave(phba->host->host_lock, iflag);
- phba->fc_flag |= FC_UNLOADING;
+ spin_lock_irq(&phba->hbalock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(&phba->hbalock);
- spin_unlock_irqrestore(phba->host->host_lock, iflag);
-
- fc_remove_host(phba->host);
- scsi_remove_host(phba->host);
+ kfree(vport->vname);
+ lpfc_free_sysfs_attr(vport);
kthread_stop(phba->worker_thread);
+ fc_remove_host(shost);
+ scsi_remove_host(shost);
+ lpfc_cleanup(vport);
+
/*
* Bring down the SLI Layer. This step disable all interrupts,
* clears the rings, discards all mailbox commands, and resets
* the HBA.
*/
lpfc_sli_hba_down(phba);
+ lpfc_sli_brdrestart(phba);
- /* Release the irq reservation */
- free_irq(phba->pcidev->irq, phba);
+ lpfc_stop_phba_timers(phba);
+ spin_lock_irq(&phba->hbalock);
+ list_del_init(&vport->listentry);
+ spin_unlock_irq(&phba->hbalock);
- lpfc_cleanup(phba, 0);
- lpfc_stop_timer(phba);
- phba->work_hba_events = 0;
+ lpfc_debugfs_terminate(vport);
+
+ if (phba->intr_type == MSIX)
+ lpfc_disable_msix(phba);
+ else {
+ free_irq(phba->pcidev->irq, phba);
+ if (phba->intr_type == MSI)
+ pci_disable_msi(phba->pcidev);
+ }
+
+ pci_set_drvdata(pdev, NULL);
+ scsi_host_put(shost);
/*
* Call scsi_free before mem_free since scsi bufs are released to their
lpfc_scsi_free(phba);
lpfc_mem_free(phba);
+ dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt,
+ phba->hbqslimp.phys);
+
/* Free resources associated with SLI2 interface */
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
phba->slim2p, phba->slim2p_mapping);
iounmap(phba->ctrl_regs_memmap_p);
iounmap(phba->slim_memmap_p);
- pci_release_regions(phba->pcidev);
- pci_disable_device(phba->pcidev);
-
idr_remove(&lpfc_hba_index, phba->brd_no);
- scsi_host_put(phba->host);
- pci_set_drvdata(pdev, NULL);
+ kfree(phba);
+
+ pci_release_selected_regions(pdev, bars);
+ pci_disable_device(pdev);
+}
+
+/**
+ * lpfc_io_error_detected: Driver method for handling PCI I/O error detected.
+ * @pdev: pointer to PCI device.
+ * @state: the current PCI connection state.
+ *
+ * This routine is registered to the PCI subsystem for error handling. This
+ * function is called by the PCI subsystem after a PCI bus error affecting
+ * this device has been detected. When this function is invoked, it will
+ * need to stop all the I/Os and interrupt(s) to the device. Once that is
+ * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to
+ * perform proper recovery as desired.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ **/
+static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ if (state == pci_channel_io_perm_failure)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ pci_disable_device(pdev);
+ /*
+ * There may be I/Os dropped by the firmware.
+ * Error iocb (I/O) on txcmplq and let the SCSI layer
+ * retry it after re-establishing link.
+ */
+ pring = &psli->ring[psli->fcp_ring];
+ lpfc_sli_abort_iocb_ring(phba, pring);
+
+ if (phba->intr_type == MSIX)
+ lpfc_disable_msix(phba);
+ else {
+ free_irq(phba->pcidev->irq, phba);
+ if (phba->intr_type == MSI)
+ pci_disable_msi(phba->pcidev);
+ }
+
+ /* Request a slot reset. */
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * lpfc_io_slot_reset: Restart a PCI device from scratch.
+ * @pdev: pointer to PCI device.
+ *
+ * This routine is registered to the PCI subsystem for error handling. This is
+ * called after PCI bus has been reset to restart the PCI card from scratch,
+ * as if from a cold-boot. During the PCI subsystem error recovery, after the
+ * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform
+ * proper error recovery and then call this routine before calling the .resume
+ * method to recover the device. This function will initialize the HBA device,
+ * enable the interrupt, but it will just put the HBA to offline state without
+ * passing any I/O traffic.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_RECOVERED - the device has been recovered
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ */
+static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ int error, retval;
+
+ dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
+ if (pci_enable_device_mem(pdev)) {
+ printk(KERN_ERR "lpfc: Cannot re-enable "
+ "PCI device after reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ pci_set_master(pdev);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Enable configured interrupt method */
+ phba->intr_type = NONE;
+ if (phba->cfg_use_msi == 2) {
+ error = lpfc_enable_msix(phba);
+ if (!error)
+ phba->intr_type = MSIX;
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
+ retval = pci_enable_msi(phba->pcidev);
+ if (!retval)
+ phba->intr_type = MSI;
+ else
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0470 Enable MSI failed, continuing "
+ "with IRQ\n");
+ }
+
+ /* MSI-X is the only case the doesn't need to call request_irq */
+ if (phba->intr_type != MSIX) {
+ retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (retval) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0471 Enable interrupt handler "
+ "failed\n");
+ } else if (phba->intr_type != MSI)
+ phba->intr_type = INTx;
+ }
+
+ /* Take device offline; this will perform cleanup */
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * lpfc_io_resume: Resume PCI I/O operation.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is registered to the PCI subsystem for error handling. It is
+ * called when kernel error recovery tells the lpfc driver that it is ok to
+ * resume normal PCI operation after PCI bus error recovery. After this call,
+ * traffic can start to flow from this device again.
+ */
+static void lpfc_io_resume(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ lpfc_online(phba);
}
static struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
+ PCI_ANY_ID, PCI_ANY_ID, },
+ {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
+ PCI_ANY_ID, PCI_ANY_ID, },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, lpfc_id_table);
+static struct pci_error_handlers lpfc_err_handler = {
+ .error_detected = lpfc_io_error_detected,
+ .slot_reset = lpfc_io_slot_reset,
+ .resume = lpfc_io_resume,
+};
+
static struct pci_driver lpfc_driver = {
.name = LPFC_DRIVER_NAME,
- .owner = THIS_MODULE,
.id_table = lpfc_id_table,
.probe = lpfc_pci_probe_one,
.remove = __devexit_p(lpfc_pci_remove_one),
+ .err_handler = &lpfc_err_handler,
};
+/**
+ * lpfc_init: lpfc module initialization routine.
+ *
+ * This routine is to be invoked when the lpfc module is loaded into the
+ * kernel. The special kernel macro module_init() is used to indicate the
+ * role of this routine to the kernel as lpfc module entry point.
+ *
+ * Return codes
+ * 0 - successful
+ * -ENOMEM - FC attach transport failed
+ * all others - failed
+ */
static int __init
lpfc_init(void)
{
printk(LPFC_MODULE_DESC "\n");
printk(LPFC_COPYRIGHT "\n");
+ if (lpfc_enable_npiv) {
+ lpfc_transport_functions.vport_create = lpfc_vport_create;
+ lpfc_transport_functions.vport_delete = lpfc_vport_delete;
+ }
lpfc_transport_template =
fc_attach_transport(&lpfc_transport_functions);
- if (!lpfc_transport_template)
+ if (lpfc_transport_template == NULL)
return -ENOMEM;
+ if (lpfc_enable_npiv) {
+ lpfc_vport_transport_template =
+ fc_attach_transport(&lpfc_vport_transport_functions);
+ if (lpfc_vport_transport_template == NULL) {
+ fc_release_transport(lpfc_transport_template);
+ return -ENOMEM;
+ }
+ }
error = pci_register_driver(&lpfc_driver);
- if (error)
+ if (error) {
fc_release_transport(lpfc_transport_template);
+ fc_release_transport(lpfc_vport_transport_template);
+ }
return error;
}
+/**
+ * lpfc_exit: lpfc module removal routine.
+ *
+ * This routine is invoked when the lpfc module is removed from the kernel.
+ * The special kernel macro module_exit() is used to indicate the role of
+ * this routine to the kernel as lpfc module exit point.
+ */
static void __exit
lpfc_exit(void)
{
pci_unregister_driver(&lpfc_driver);
fc_release_transport(lpfc_transport_template);
+ if (lpfc_enable_npiv)
+ fc_release_transport(lpfc_vport_transport_template);
}
module_init(lpfc_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff