[SCSI] lpfc 8.1.2: Add ERROR and WARM_START modes for diagnostic purposes.
Add ERROR and WARM_START modes for diagnostic purposes.
Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 1f87632..d6ffe26 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1,7 +1,7 @@
/*******************************************************************
* 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) 2004-2006 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -513,7 +513,9 @@
case MBX_SET_MASK:
case MBX_SET_SLIM:
case MBX_UNREG_D_ID:
+ case MBX_KILL_BOARD:
case MBX_CONFIG_FARP:
+ case MBX_BEACON:
case MBX_LOAD_AREA:
case MBX_RUN_BIU_DIAG64:
case MBX_CONFIG_PORT:
@@ -1512,98 +1514,162 @@
return errcnt;
}
-/******************************************************************************
-* lpfc_sli_send_reset
-*
-* Note: After returning from this function, the HBA cannot be accessed for
-* 1 ms. Since we do not wish to delay in interrupt context, it is the
-* responsibility of the caller to perform the mdelay(1) and flush via readl().
-******************************************************************************/
-static int
-lpfc_sli_send_reset(struct lpfc_hba * phba, uint16_t skip_post)
+int
+lpfc_sli_brdready(struct lpfc_hba * phba, uint32_t mask)
{
- MAILBOX_t *swpmb;
- volatile uint32_t word0;
- void __iomem *to_slim;
- unsigned long flags = 0;
+ uint32_t status;
+ int i = 0;
+ int retval = 0;
- spin_lock_irqsave(phba->host->host_lock, flags);
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
- /* A board reset must use REAL SLIM. */
- phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
+ /*
+ * Check status register every 100ms for 5 retries, then every
+ * 500ms for 5, then every 2.5 sec for 5, then reset board and
+ * every 2.5 sec for 4.
+ * Break our of the loop if errors occurred during init.
+ */
+ while (((status & mask) != mask) &&
+ !(status & HS_FFERM) &&
+ i++ < 20) {
- word0 = 0;
- swpmb = (MAILBOX_t *) & word0;
- swpmb->mbxCommand = MBX_RESTART;
- swpmb->mbxHc = 1;
+ if (i <= 5)
+ msleep(10);
+ else if (i <= 10)
+ msleep(500);
+ else
+ msleep(2500);
- to_slim = phba->MBslimaddr;
- writel(*(uint32_t *) swpmb, to_slim);
- readl(to_slim); /* flush */
-
- /* Only skip post after fc_ffinit is completed */
- if (skip_post) {
- word0 = 1; /* This is really setting up word1 */
- } else {
- word0 = 0; /* This is really setting up word1 */
+ if (i == 15) {
+ phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
+ lpfc_sli_brdrestart(phba);
+ }
+ /* Read the HBA Host Status Register */
+ status = readl(phba->HSregaddr);
}
- to_slim = phba->MBslimaddr + sizeof (uint32_t);
- writel(*(uint32_t *) swpmb, to_slim);
- readl(to_slim); /* flush */
- /* Turn off parity checking and serr during the physical reset */
- pci_read_config_word(phba->pcidev, PCI_COMMAND, &phba->pci_cfg_value);
- pci_write_config_word(phba->pcidev, PCI_COMMAND,
- (phba->pci_cfg_value &
- ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+ /* Check to see if any errors occurred during init */
+ if ((status & HS_FFERM) || (i >= 20)) {
+ phba->hba_state = LPFC_HBA_ERROR;
+ retval = 1;
+ }
- writel(HC_INITFF, phba->HCregaddr);
-
- phba->hba_state = LPFC_INIT_START;
- spin_unlock_irqrestore(phba->host->host_lock, flags);
-
- return 0;
+ return retval;
}
-static int
-lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post)
+int
+lpfc_sli_brdkill(struct lpfc_hba * phba)
{
+ struct lpfc_sli *psli;
+ LPFC_MBOXQ_t *pmb;
+ uint32_t status;
+ uint32_t ha_copy;
+ int retval;
+ int i = 0;
+
+ psli = &phba->sli;
+
+ /* Kill HBA */
+ lpfc_printf_log(phba,
+ KERN_INFO,
+ LOG_SLI,
+ "%d:0329 Kill HBA Data: x%x x%x\n",
+ phba->brd_no,
+ phba->hba_state,
+ psli->sli_flag);
+
+ if ((pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
+ GFP_ATOMIC)) == 0) {
+ return 1;
+ }
+
+ /* Disable the error attention */
+ spin_lock_irq(phba->host->host_lock);
+ status = readl(phba->HCregaddr);
+ status &= ~HC_ERINT_ENA;
+ writel(status, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(phba->host->host_lock);
+
+ lpfc_kill_board(phba, pmb);
+ pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+
+ if (retval != MBX_SUCCESS) {
+ if (retval != MBX_BUSY)
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return 1;
+ }
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
+ * attention every 100ms for 3 seconds. If we don't get ERATT after
+ * 3 seconds we still set HBA_ERROR state because the status of the
+ * board is now undefined.
+ */
+ ha_copy = readl(phba->HAregaddr);
+
+ while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
+ mdelay(100);
+ ha_copy = readl(phba->HAregaddr);
+ }
+
+ del_timer_sync(&psli->mbox_tmo);
+
+ spin_lock_irq(phba->host->host_lock);
+ psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(phba->host->host_lock);
+
+ psli->mbox_active = NULL;
+ lpfc_hba_down_post(phba);
+ phba->hba_state = LPFC_HBA_ERROR;
+
+ return (ha_copy & HA_ERATT ? 0 : 1);
+}
+
+int
+lpfc_sli_brdreset(struct lpfc_hba * phba)
+{
+ struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
+ uint16_t cfg_value;
int i;
- struct lpfc_dmabuf *mp, *next_mp;
- unsigned long flags = 0;
- lpfc_sli_send_reset(phba, skip_post);
- mdelay(1);
+ psli = &phba->sli;
- spin_lock_irqsave(phba->host->host_lock, flags);
- /* Risk the write on flush case ie no delay after the readl */
- readl(phba->HCregaddr); /* flush */
- /* Now toggle INITFF bit set by lpfc_sli_send_reset */
- writel(0, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
-
- /* Restore PCI cmd register */
- pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value);
+ /* Reset HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0325 Reset HBA Data: x%x x%x\n", phba->brd_no,
+ phba->hba_state, psli->sli_flag);
/* perform board reset */
phba->fc_eventTag = 0;
phba->fc_myDID = 0;
- phba->fc_prevDID = Mask_DID;
+ phba->fc_prevDID = 0;
- /* Reset HBA */
- lpfc_printf_log(phba,
- KERN_INFO,
- LOG_SLI,
- "%d:0325 Reset HBA Data: x%x x%x x%x\n",
- phba->brd_no,
- phba->hba_state,
- phba->sli.sli_flag,
- skip_post);
+ psli->sli_flag = 0;
+
+ /* Turn off parity checking and serr during the physical reset */
+ pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
+ pci_write_config_word(phba->pcidev, PCI_COMMAND,
+ (cfg_value &
+ ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
+
+ /* Now toggle INITFF bit in the Host Control Register */
+ writel(HC_INITFF, phba->HCregaddr);
+ mdelay(1);
+ readl(phba->HCregaddr); /* flush */
+ writel(0, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+
+ /* Restore PCI cmd register */
+ pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
/* Initialize relevant SLI info */
- for (i = 0; i < phba->sli.num_rings; i++) {
- pring = &phba->sli.ring[i];
+ for (i = 0; i < psli->num_rings; i++) {
+ pring = &psli->ring[i];
pring->flag = 0;
pring->rspidx = 0;
pring->next_cmdidx = 0;
@@ -1611,27 +1677,62 @@
pring->cmdidx = 0;
pring->missbufcnt = 0;
}
- spin_unlock_irqrestore(phba->host->host_lock, flags);
- if (skip_post) {
- mdelay(100);
+ phba->hba_state = LPFC_WARM_START;
+ return 0;
+}
+
+int
+lpfc_sli_brdrestart(struct lpfc_hba * phba)
+{
+ MAILBOX_t *mb;
+ struct lpfc_sli *psli;
+ uint16_t skip_post;
+ volatile uint32_t word0;
+ void __iomem *to_slim;
+
+ spin_lock_irq(phba->host->host_lock);
+
+ psli = &phba->sli;
+
+ /* Restart HBA */
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no,
+ phba->hba_state, psli->sli_flag);
+
+ word0 = 0;
+ mb = (MAILBOX_t *) &word0;
+ mb->mbxCommand = MBX_RESTART;
+ mb->mbxHc = 1;
+
+ to_slim = phba->MBslimaddr;
+ writel(*(uint32_t *) mb, to_slim);
+ readl(to_slim); /* flush */
+
+ /* Only skip post after fc_ffinit is completed */
+ if (phba->hba_state) {
+ skip_post = 1;
+ word0 = 1; /* This is really setting up word1 */
} else {
+ skip_post = 0;
+ word0 = 0; /* This is really setting up word1 */
+ }
+ to_slim = (uint8_t *) phba->MBslimaddr + sizeof (uint32_t);
+ writel(*(uint32_t *) mb, to_slim);
+ readl(to_slim); /* flush */
+
+ lpfc_sli_brdreset(phba);
+
+ phba->hba_state = LPFC_INIT_START;
+
+ spin_unlock_irq(phba->host->host_lock);
+
+ if (skip_post)
+ mdelay(100);
+ else
mdelay(2000);
- }
- spin_lock_irqsave(phba->host->host_lock, flags);
- /* Cleanup preposted buffers on the ELS ring */
- pring = &phba->sli.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_unlock_irqrestore(phba->host->host_lock, flags);
-
- for (i = 0; i < phba->sli.num_rings; i++)
- lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]);
+ lpfc_hba_down_post(phba);
return 0;
}
@@ -1691,7 +1792,8 @@
}
if (i == 15) {
- lpfc_sli_brdreset(phba, 0);
+ phba->hba_state = LPFC_STATE_UNKNOWN; /* Do post */
+ lpfc_sli_brdrestart(phba);
}
/* Read the HBA Host Status Register */
status = readl(phba->HSregaddr);
@@ -1735,8 +1837,8 @@
}
while (resetcount < 2 && !done) {
- phba->hba_state = 0;
- lpfc_sli_brdreset(phba, 0);
+ phba->hba_state = LPFC_STATE_UNKNOWN;
+ lpfc_sli_brdrestart(phba);
msleep(2500);
rc = lpfc_sli_chipset_init(phba);
if (rc)
@@ -1920,6 +2022,14 @@
mb = &pmbox->mb;
status = MBX_SUCCESS;
+ if (phba->hba_state == LPFC_HBA_ERROR) {
+ spin_unlock_irqrestore(phba->host->host_lock, drvr_flag);
+
+ /* Mbox command <mbxCommand> cannot issue */
+ 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
@@ -2002,7 +2112,8 @@
/* If we are not polling, we MUST be in SLI2 mode */
if (flag != MBX_POLL) {
- if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
+ if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
+ (mb->mbxCommand != MBX_KILL_BOARD)) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(phba->host->host_lock,
drvr_flag);
@@ -2035,7 +2146,8 @@
/* 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) {
+ if (mb->mbxCommand == MBX_CONFIG_PORT ||
+ mb->mbxCommand == MBX_KILL_BOARD) {
/* copy command data into host mbox for cmpl */
lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
MAILBOX_CMD_SIZE);
@@ -2086,8 +2198,9 @@
ha_copy = readl(phba->HAregaddr);
/* Wait for command to complete */
- while (((word0 & OWN_CHIP) == OWN_CHIP)
- || !(ha_copy & HA_MBATT)) {
+ while (((word0 & OWN_CHIP) == OWN_CHIP) ||
+ (!(ha_copy & HA_MBATT) &&
+ (phba->hba_state > LPFC_WARM_START))) {
if (i++ >= 100) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(phba->host->host_lock,
@@ -2455,15 +2568,6 @@
spin_unlock_irqrestore(phba->host->host_lock, flags);
- /*
- * Provided the hba is not in an error state, reset it. It is not
- * capable of IO anymore.
- */
- if (phba->hba_state != LPFC_HBA_ERROR) {
- phba->hba_state = LPFC_INIT_START;
- lpfc_sli_brdreset(phba, 1);
- }
-
return 1;
}
@@ -2976,13 +3080,6 @@
/* Clear Chip error bit */
writel(HA_ERATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
-
- /*
- * Reseting the HBA is the only reliable way
- * to shutdown interrupt when there is a
- * ERROR.
- */
- lpfc_sli_send_reset(phba, 1);
}
spin_lock(phba->host->host_lock);