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-rw-r--r--drivers/scsi/lpfc/lpfc.h1
-rw-r--r--drivers/scsi/lpfc/lpfc_crtn.h1
-rw-r--r--drivers/scsi/lpfc/lpfc_hbadisc.c4
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c4
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c99
5 files changed, 100 insertions, 9 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 2f67a8a92599..087c44539a16 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -197,6 +197,7 @@ struct lpfc_hba {
#define LPFC_HBA_READY 32
#define LPFC_HBA_ERROR -1
+ int32_t stopped; /* HBA has not been restarted since last ERATT */
uint8_t fc_linkspeed; /* Link speed after last READ_LA */
uint32_t fc_eventTag; /* event tag for link attention */
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index f716c1d85f41..fad607b2e6f4 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -139,6 +139,7 @@ struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *);
void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
+void lpfc_reset_barrier(struct lpfc_hba * phba);
int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
int lpfc_sli_brdkill(struct lpfc_hba *);
int lpfc_sli_brdreset(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 82704148d5d4..f54089fe4732 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -155,6 +155,7 @@ lpfc_work_list_done(struct lpfc_hba * phba)
case LPFC_EVT_WARM_START:
if (phba->hba_state >= LPFC_LINK_DOWN)
lpfc_offline(phba);
+ lpfc_reset_barrier(phba);
lpfc_sli_brdreset(phba);
lpfc_hba_down_post(phba);
*(int *)(evtp->evt_arg1) =
@@ -164,7 +165,8 @@ lpfc_work_list_done(struct lpfc_hba * phba)
case LPFC_EVT_KILL:
if (phba->hba_state >= LPFC_LINK_DOWN)
lpfc_offline(phba);
- *(int *)(evtp->evt_arg1) = lpfc_sli_brdkill(phba);
+ *(int *)(evtp->evt_arg1)
+ = (phba->stopped) ? 0 : lpfc_sli_brdkill(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
}
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index a2e15436730e..66d5d003555d 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -464,8 +464,6 @@ lpfc_hba_down_prep(struct lpfc_hba * phba)
lpfc_els_flush_cmd(phba);
lpfc_disc_flush_list(phba);
- /* Disable SLI2 since we disabled interrupts */
- phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
return (0);
}
@@ -526,6 +524,7 @@ lpfc_handle_eratt(struct lpfc_hba * phba)
phba->work_status[0], phba->work_status[1]);
spin_lock_irq(phba->host->host_lock);
phba->fc_flag |= FC_ESTABLISH_LINK;
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(phba->host->host_lock);
/*
@@ -559,6 +558,7 @@ lpfc_handle_eratt(struct lpfc_hba * phba)
phba->brd_no, phba->work_hs,
phba->work_status[0], phba->work_status[1]);
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
lpfc_offline(phba);
phba->hba_state = LPFC_HBA_ERROR;
lpfc_hba_down_post(phba);
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 764aadbec71b..bb69a7a1ec59 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1566,6 +1566,79 @@ lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask)
return retval;
}
+#define BARRIER_TEST_PATTERN (0xdeadbeef)
+
+void lpfc_reset_barrier(struct lpfc_hba * phba)
+{
+ uint32_t * resp_buf;
+ uint32_t * mbox_buf;
+ volatile uint32_t mbox;
+ uint32_t hc_copy;
+ int i;
+ uint8_t hdrtype;
+
+ pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
+ if (hdrtype != 0x80 ||
+ (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
+ FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
+ return;
+
+ /*
+ * Tell the other part of the chip to suspend temporarily all
+ * its DMA activity.
+ */
+ resp_buf = (uint32_t *)phba->MBslimaddr;
+
+ /* Disable the error attention */
+ hc_copy = readl(phba->HCregaddr);
+ writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+
+ if (readl(phba->HAregaddr) & HA_ERATT) {
+ /* Clear Chip error bit */
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+
+ mbox = 0;
+ ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
+ ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
+
+ writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
+ mbox_buf = (uint32_t *)phba->MBslimaddr;
+ writel(mbox, mbox_buf);
+
+ for (i = 0;
+ readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
+ mdelay(1);
+
+ if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
+ if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
+ phba->stopped)
+ goto restore_hc;
+ else
+ goto clear_errat;
+ }
+
+ ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
+ for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
+ mdelay(1);
+
+clear_errat:
+
+ while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
+ mdelay(1);
+
+ if (readl(phba->HAregaddr) & HA_ERATT) {
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
+
+restore_hc:
+ writel(hc_copy, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+}
+
int
lpfc_sli_brdkill(struct lpfc_hba * phba)
{
@@ -1588,9 +1661,8 @@ lpfc_sli_brdkill(struct lpfc_hba * phba)
psli->sli_flag);
if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
- GFP_ATOMIC)) == 0) {
+ GFP_KERNEL)) == 0)
return 1;
- }
/* Disable the error attention */
spin_lock_irq(phba->host->host_lock);
@@ -1610,6 +1682,8 @@ lpfc_sli_brdkill(struct lpfc_hba * phba)
return 1;
}
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+
mempool_free(pmb, phba->mbox_mem_pool);
/* There is no completion for a KILL_BOARD mbox cmd. Check for an error
@@ -1625,7 +1699,10 @@ lpfc_sli_brdkill(struct lpfc_hba * phba)
}
del_timer_sync(&psli->mbox_tmo);
-
+ if (ha_copy & HA_ERATT) {
+ writel(HA_ERATT, phba->HAregaddr);
+ phba->stopped = 1;
+ }
spin_lock_irq(phba->host->host_lock);
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irq(phba->host->host_lock);
@@ -1665,6 +1742,7 @@ lpfc_sli_brdreset(struct lpfc_hba * phba)
(cfg_value &
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
/* Now toggle INITFF bit in the Host Control Register */
writel(HC_INITFF, phba->HCregaddr);
mdelay(1);
@@ -1713,6 +1791,8 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba)
mb->mbxCommand = MBX_RESTART;
mb->mbxHc = 1;
+ lpfc_reset_barrier(phba);
+
to_slim = phba->MBslimaddr;
writel(*(uint32_t *) mb, to_slim);
readl(to_slim); /* flush */
@@ -1730,7 +1810,7 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba)
readl(to_slim); /* flush */
lpfc_sli_brdreset(phba);
-
+ phba->stopped = 0;
phba->hba_state = LPFC_INIT_START;
spin_unlock_irq(phba->host->host_lock);
@@ -2038,6 +2118,13 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
return (MBX_NOT_FINISHED);
}
+ if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
+ !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+ LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag)
+ return (MBX_NOT_FINISHED);
+ }
+
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
/* Polling for a mbox command when another one is already active
* is not allowed in SLI. Also, the driver must have established
@@ -2154,8 +2241,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
/* First copy command data to host SLIM area */
lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
} else {
- if (mb->mbxCommand == MBX_CONFIG_PORT ||
- mb->mbxCommand == MBX_KILL_BOARD) {
+ if (mb->mbxCommand == MBX_CONFIG_PORT) {
/* copy command data into host mbox for cmpl */
lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
MAILBOX_CMD_SIZE);
@@ -3121,6 +3207,7 @@ lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs)
/* Clear Chip error bit */
writel(HA_ERATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
+ phba->stopped = 1;
}
spin_lock(phba->host->host_lock);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-10 01:58:07 +0000