#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
*
* Returns sglq ponter = success, NULL = Failure.
**/
-static struct lpfc_sglq *
+struct lpfc_sglq *
__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
{
uint16_t adj_xri;
return NULL;
adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
+ sglq->state = SGL_ALLOCATED;
return sglq;
}
else
sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
if (sglq) {
- if (iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) {
+ if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
+ (sglq->state != SGL_XRI_ABORTED)) {
spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
iflag);
list_add(&sglq->list,
&phba->sli4_hba.lpfc_abts_els_sgl_list);
spin_unlock_irqrestore(
&phba->sli4_hba.abts_sgl_list_lock, iflag);
- } else
+ } else {
+ sglq->state = SGL_FREED;
list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
+ }
}
spin_unlock_irqrestore(&phba->hbalock,
iflag);
}
- if ((phba->sli_rev == LPFC_SLI_REV4) &&
- (saveq->iocb_flag & LPFC_EXCHANGE_BUSY)) {
- /* Set cmdiocb flag for the exchange
- * busy so sgl (xri) will not be
- * released until the abort xri is
- * received from hba, clear the
- * LPFC_DRIVER_ABORTED bit in case
- * it was driver initiated abort.
- */
- spin_lock_irqsave(&phba->hbalock,
- iflag);
- cmdiocbp->iocb_flag &=
- ~LPFC_DRIVER_ABORTED;
- cmdiocbp->iocb_flag |=
- LPFC_EXCHANGE_BUSY;
- spin_unlock_irqrestore(&phba->hbalock,
- iflag);
- cmdiocbp->iocb.ulpStatus =
- IOSTAT_LOCAL_REJECT;
- cmdiocbp->iocb.un.ulpWord[4] =
- IOERR_ABORT_REQUESTED;
- /*
- * For SLI4, irsiocb contains NO_XRI
- * in sli_xritag, it shall not affect
- * releasing sgl (xri) process.
- */
- saveq->iocb.ulpStatus =
- IOSTAT_LOCAL_REJECT;
- saveq->iocb.un.ulpWord[4] =
- IOERR_SLI_ABORTED;
- spin_lock_irqsave(&phba->hbalock,
- iflag);
- saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
- spin_unlock_irqrestore(&phba->hbalock,
- iflag);
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (saveq->iocb_flag &
+ LPFC_EXCHANGE_BUSY) {
+ /* Set cmdiocb flag for the
+ * exchange busy so sgl (xri)
+ * will not be released until
+ * the abort xri is received
+ * from hba.
+ */
+ spin_lock_irqsave(
+ &phba->hbalock, iflag);
+ cmdiocbp->iocb_flag |=
+ LPFC_EXCHANGE_BUSY;
+ spin_unlock_irqrestore(
+ &phba->hbalock, iflag);
+ }
+ if (cmdiocbp->iocb_flag &
+ LPFC_DRIVER_ABORTED) {
+ /*
+ * Clear LPFC_DRIVER_ABORTED
+ * bit in case it was driver
+ * initiated abort.
+ */
+ spin_lock_irqsave(
+ &phba->hbalock, iflag);
+ cmdiocbp->iocb_flag &=
+ ~LPFC_DRIVER_ABORTED;
+ spin_unlock_irqrestore(
+ &phba->hbalock, iflag);
+ cmdiocbp->iocb.ulpStatus =
+ IOSTAT_LOCAL_REJECT;
+ cmdiocbp->iocb.un.ulpWord[4] =
+ IOERR_ABORT_REQUESTED;
+ /*
+ * For SLI4, irsiocb contains
+ * NO_XRI in sli_xritag, it
+ * shall not affect releasing
+ * sgl (xri) process.
+ */
+ saveq->iocb.ulpStatus =
+ IOSTAT_LOCAL_REJECT;
+ saveq->iocb.un.ulpWord[4] =
+ IOERR_SLI_ABORTED;
+ spin_lock_irqsave(
+ &phba->hbalock, iflag);
+ saveq->iocb_flag |=
+ LPFC_DELAY_MEM_FREE;
+ spin_unlock_irqrestore(
+ &phba->hbalock, iflag);
+ }
}
}
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
&rspiocbq);
- if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
- spin_unlock_irqrestore(&phba->hbalock,
- iflag);
- (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
- &rspiocbq);
- spin_lock_irqsave(&phba->hbalock,
- iflag);
- }
+ if (unlikely(!cmdiocbq))
+ break;
+ if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
+ cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
+ if (cmdiocbq->iocb_cmpl) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+ &rspiocbq);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ }
break;
case LPFC_UNSOL_IOCB:
spin_unlock_irqrestore(&phba->hbalock, iflag);
/* Check to see if any errors occurred during init */
if ((status & HS_FFERM) || (i >= 20)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2751 Adapter failed to restart, "
+ "status reg x%x, FW Data: A8 x%x AC x%x\n",
+ status,
+ readl(phba->MBslimaddr + 0xa8),
+ readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
retval = 1;
}
if (retval != MBX_SUCCESS) {
if (retval != MBX_BUSY)
mempool_free(pmb, phba->mbox_mem_pool);
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2752 KILL_BOARD command failed retval %d\n",
+ retval);
spin_lock_irq(&phba->hbalock);
phba->link_flag &= ~LS_IGNORE_ERATT;
spin_unlock_irq(&phba->hbalock);
lpfc_sli_hba_setup_error:
phba->link_state = LPFC_HBA_ERROR;
- lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0445 Firmware initialization failed\n");
return rc;
}
spin_unlock_irq(&phba->hbalock);
/* Read the port's service parameters. */
- lpfc_read_sparam(phba, mboxq, vport->vpi);
+ rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
+ if (rc) {
+ phba->link_state = LPFC_HBA_ERROR;
+ rc = -ENOMEM;
+ goto out_free_vpd;
+ }
+
mboxq->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
mp = (struct lpfc_dmabuf *) mboxq->context1;
/* Post receive buffers to the device */
lpfc_sli4_rb_setup(phba);
+ /* Reset HBA FCF states after HBA reset */
+ phba->fcf.fcf_flag = 0;
+ phba->fcf.current_rec.flag = 0;
+
/* Start the ELS watchdog timer */
mod_timer(&vport->els_tmofunc,
jiffies + HZ * (phba->fc_ratov * 2));
for (i = 0; i < numBdes; i++) {
/* Should already be byte swapped. */
- sgl->addr_hi = bpl->addrHigh;
- sgl->addr_lo = bpl->addrLow;
- /* swap the size field back to the cpu so we
- * can assign it to the sgl.
- */
- bde.tus.w = le32_to_cpu(bpl->tus.w);
- bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize);
+ sgl->addr_hi = bpl->addrHigh;
+ sgl->addr_lo = bpl->addrLow;
+
if ((i+1) == numBdes)
bf_set(lpfc_sli4_sge_last, sgl, 1);
else
bf_set(lpfc_sli4_sge_last, sgl, 0);
sgl->word2 = cpu_to_le32(sgl->word2);
- sgl->word3 = cpu_to_le32(sgl->word3);
+ /* swap the size field back to the cpu so we
+ * can assign it to the sgl.
+ */
+ bde.tus.w = le32_to_cpu(bpl->tus.w);
+ sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
bpl++;
sgl++;
}
cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
sgl->addr_lo =
cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
- bf_set(lpfc_sli4_sge_len, sgl,
- icmd->un.genreq64.bdl.bdeSize);
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
- sgl->word3 = cpu_to_le32(sgl->word3);
+ sgl->sge_len =
+ cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
}
return sglq->sli4_xritag;
}
{
wait_queue_head_t *pdone_q;
unsigned long iflags;
+ struct lpfc_scsi_buf *lpfc_cmd;
spin_lock_irqsave(&phba->hbalock, iflags);
cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
&rspiocbq->iocb, sizeof(IOCB_t));
+ /* Set the exchange busy flag for task management commands */
+ if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
+ !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
+ lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
+ cur_iocbq);
+ lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
+ }
+
pdone_q = cmdiocbq->context_un.wait_queue;
if (pdone_q)
wake_up(pdone_q);
int ecount = 0;
uint16_t cqid;
- if (bf_get(lpfc_eqe_major_code, eqe) != 0 ||
- bf_get(lpfc_eqe_minor_code, eqe) != 0) {
+ if (bf_get(lpfc_eqe_major_code, eqe) != 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0359 Not a valid slow-path completion "
"event: majorcode=x%x, minorcode=x%x\n",
/* Fake the irspiocb and copy necessary response information */
lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
+ if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ }
+
/* Pass the cmd_iocb and the rsp state to the upper layer */
(cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
}
uint16_t cqid;
int ecount = 0;
- if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) ||
- unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) {
+ if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0366 Not a valid fast-path completion "
"event: majorcode=x%x, minorcode=x%x\n",
}
/**
- * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
+ * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
- * This routine is invoked to read up to @fcf_num of FCF record from the
- * device starting with the given @fcf_index.
+ * This routine is invoked to scan the entire FCF table by reading FCF
+ * record and processing it one at a time starting from the @fcf_index
+ * for initial FCF discovery or fast FCF failover rediscovery.
+ *
+ * Return 0 if the mailbox command is submitted sucessfully, none 0
+ * otherwise.
**/
int
-lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
+lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
- void *virt_addr;
- dma_addr_t phys_addr;
- uint8_t *bytep;
- struct lpfc_mbx_sge sge;
- uint32_t alloc_len, req_len;
- struct lpfc_mbx_read_fcf_tbl *read_fcf;
phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
"2000 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
- goto fail_fcfscan;
+ goto fail_fcf_scan;
}
-
- req_len = sizeof(struct fcf_record) +
- sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
-
- /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
- alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
- LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
- LPFC_SLI4_MBX_NEMBED);
-
- if (alloc_len < req_len) {
- lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "0291 Allocated DMA memory size (x%x) is "
- "less than the requested DMA memory "
- "size (x%x)\n", alloc_len, req_len);
- error = -ENOMEM;
- goto fail_fcfscan;
+ /* Construct the read FCF record mailbox command */
+ rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
+ if (rc) {
+ error = -EINVAL;
+ goto fail_fcf_scan;
}
-
- /* Get the first SGE entry from the non-embedded DMA memory. This
- * routine only uses a single SGE.
- */
- lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
- phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
- virt_addr = mboxq->sge_array->addr[0];
- read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
-
- /* Set up command fields */
- bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
- /* Perform necessary endian conversion */
- bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
- lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
+ /* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
- mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
+ mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
- if (rc == MBX_NOT_FINISHED) {
+ if (rc == MBX_NOT_FINISHED)
error = -EIO;
- } else {
+ else {
spin_lock_irq(&phba->hbalock);
phba->hba_flag |= FCF_DISC_INPROGRESS;
spin_unlock_irq(&phba->hbalock);
+ /* Reset FCF round robin index bmask for new scan */
+ if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
+ memset(phba->fcf.fcf_rr_bmask, 0,
+ sizeof(*phba->fcf.fcf_rr_bmask));
error = 0;
}
-fail_fcfscan:
+fail_fcf_scan:
if (error) {
if (mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
}
/**
+ * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index: FCF table entry offset.
+ *
+ * This routine is invoked to read an FCF record indicated by @fcf_index
+ * and to use it for FLOGI round robin FCF failover.
+ *
+ * Return 0 if the mailbox command is submitted sucessfully, none 0
+ * otherwise.
+ **/
+int
+lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
+{
+ int rc = 0, error;
+ LPFC_MBOXQ_t *mboxq;
+
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
+ "2763 Failed to allocate mbox for "
+ "READ_FCF cmd\n");
+ error = -ENOMEM;
+ goto fail_fcf_read;
+ }
+ /* Construct the read FCF record mailbox command */
+ rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
+ if (rc) {
+ error = -EINVAL;
+ goto fail_fcf_read;
+ }
+ /* Issue the mailbox command asynchronously */
+ mboxq->vport = phba->pport;
+ mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED)
+ error = -EIO;
+ else
+ error = 0;
+
+fail_fcf_read:
+ if (error && mboxq)
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return error;
+}
+
+/**
+ * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index: FCF table entry offset.
+ *
+ * This routine is invoked to read an FCF record indicated by @fcf_index to
+ * determine whether it's eligible for FLOGI round robin failover list.
+ *
+ * Return 0 if the mailbox command is submitted sucessfully, none 0
+ * otherwise.
+ **/
+int
+lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
+{
+ int rc = 0, error;
+ LPFC_MBOXQ_t *mboxq;
+
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
+ "2758 Failed to allocate mbox for "
+ "READ_FCF cmd\n");
+ error = -ENOMEM;
+ goto fail_fcf_read;
+ }
+ /* Construct the read FCF record mailbox command */
+ rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
+ if (rc) {
+ error = -EINVAL;
+ goto fail_fcf_read;
+ }
+ /* Issue the mailbox command asynchronously */
+ mboxq->vport = phba->pport;
+ mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED)
+ error = -EIO;
+ else
+ error = 0;
+
+fail_fcf_read:
+ if (error && mboxq)
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return error;
+}
+
+/**
+ * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to get the next eligible FCF record index in a round
+ * robin fashion. If the next eligible FCF record index equals to the
+ * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
+ * shall be returned, otherwise, the next eligible FCF record's index
+ * shall be returned.
+ **/
+uint16_t
+lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
+{
+ uint16_t next_fcf_index;
+
+ /* Search from the currently registered FCF index */
+ next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
+ LPFC_SLI4_FCF_TBL_INDX_MAX,
+ phba->fcf.current_rec.fcf_indx);
+ /* Wrap around condition on phba->fcf.fcf_rr_bmask */
+ if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
+ next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
+ LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
+ /* Round robin failover stop condition */
+ if (next_fcf_index == phba->fcf.fcf_rr_init_indx)
+ return LPFC_FCOE_FCF_NEXT_NONE;
+
+ return next_fcf_index;
+}
+
+/**
+ * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine sets the FCF record index in to the eligible bmask for
+ * round robin failover search. It checks to make sure that the index
+ * does not go beyond the range of the driver allocated bmask dimension
+ * before setting the bit.
+ *
+ * Returns 0 if the index bit successfully set, otherwise, it returns
+ * -EINVAL.
+ **/
+int
+lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
+{
+ if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2610 HBA FCF index reached driver's "
+ "book keeping dimension: fcf_index:%d, "
+ "driver_bmask_max:%d\n",
+ fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
+ return -EINVAL;
+ }
+ /* Set the eligible FCF record index bmask */
+ set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
+
+ return 0;
+}
+
+/**
+ * lpfc_sli4_fcf_rr_index_set - Clear bmask from eligible fcf record index
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine clears the FCF record index from the eligible bmask for
+ * round robin failover search. It checks to make sure that the index
+ * does not go beyond the range of the driver allocated bmask dimension
+ * before clearing the bit.
+ **/
+void
+lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
+{
+ if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2762 HBA FCF index goes beyond driver's "
+ "book keeping dimension: fcf_index:%d, "
+ "driver_bmask_max:%d\n",
+ fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
+ return;
+ }
+ /* Clear the eligible FCF record index bmask */
+ clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
+}
+
+/**
+ * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is the completion routine for the rediscover FCF table mailbox
+ * command. If the mailbox command returned failure, it will try to stop the
+ * FCF rediscover wait timer.
+ **/
+void
+lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
+{
+ struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
+ uint32_t shdr_status, shdr_add_status;
+
+ redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
+
+ shdr_status = bf_get(lpfc_mbox_hdr_status,
+ &redisc_fcf->header.cfg_shdr.response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
+ &redisc_fcf->header.cfg_shdr.response);
+ if (shdr_status || shdr_add_status) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2746 Requesting for FCF rediscovery failed "
+ "status x%x add_status x%x\n",
+ shdr_status, shdr_add_status);
+ if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ /*
+ * CVL event triggered FCF rediscover request failed,
+ * last resort to re-try current registered FCF entry.
+ */
+ lpfc_retry_pport_discovery(phba);
+ } else {
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ /*
+ * DEAD FCF event triggered FCF rediscover request
+ * failed, last resort to fail over as a link down
+ * to FCF registration.
+ */
+ lpfc_sli4_fcf_dead_failthrough(phba);
+ }
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2775 Start FCF rediscovery quiescent period "
+ "wait timer before scaning FCF table\n");
+ /*
+ * Start FCF rediscovery wait timer for pending FCF
+ * before rescan FCF record table.
+ */
+ lpfc_fcf_redisc_wait_start_timer(phba);
+ }
+
+ mempool_free(mbox, phba->mbox_mem_pool);
+}
+
+/**
+ * lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to request for rediscovery of the entire FCF table
+ * by the port.
+ **/
+int
+lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mbox;
+ struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
+ int rc, length;
+
+ /* Cancel retry delay timers to all vports before FCF rediscover */
+ lpfc_cancel_all_vport_retry_delay_timer(phba);
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2745 Failed to allocate mbox for "
+ "requesting FCF rediscover.\n");
+ return -ENOMEM;
+ }
+
+ length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
+ LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
+ length, LPFC_SLI4_MBX_EMBED);
+
+ redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
+ /* Set count to 0 for invalidating the entire FCF database */
+ bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
+
+ /* Issue the mailbox command asynchronously */
+ mbox->vport = phba->pport;
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return -EIO;
+ }
+ return 0;
+}
+
+/**
+ * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This function is the failover routine as a last resort to the FCF DEAD
+ * event when driver failed to perform fast FCF failover.
+ **/
+void
+lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
+{
+ uint32_t link_state;
+
+ /*
+ * Last resort as FCF DEAD event failover will treat this as
+ * a link down, but save the link state because we don't want
+ * it to be changed to Link Down unless it is already down.
+ */
+ link_state = phba->link_state;
+ lpfc_linkdown(phba);
+ phba->link_state = link_state;
+
+ /* Unregister FCF if no devices connected to it */
+ lpfc_unregister_unused_fcf(phba);
+}
+
+/**
* lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
* @phba: pointer to lpfc hba data structure.
*
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff