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lpfc: Add recovery from adapter parity errors on some SLI4 adapters

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Add recovery from adapter parity errors on some SLI4 adapters

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart
2016-07-06 12:35:56 -07:00
committed by Martin K. Petersen
parent 6c92d1d0ce
commit 65791f1f90
5 changed files with 155 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
drivers/scsi/lpfc/lpfc_init.c
View File

@@ -568,7 +568,7 @@ lpfc_config_port_post(struct lpfc_hba *phba)
phba->last_completion_time = jiffies;
/* Set up error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll,
jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
if (phba->hba_flag & LINK_DISABLED) {
lpfc_printf_log(phba,
@@ -1587,35 +1587,38 @@ lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
int rc;
uint32_t intr_mode;
/*
* On error status condition, driver need to wait for port
* ready before performing reset.
*/
rc = lpfc_sli4_pdev_status_reg_wait(phba);
if (!rc) {
/* need reset: attempt for port recovery */
if (en_rn_msg)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2887 Reset Needed: Attempting Port "
"Recovery...\n");
lpfc_offline_prep(phba, mbx_action);
lpfc_offline(phba);
/* release interrupt for possible resource change */
lpfc_sli4_disable_intr(phba);
lpfc_sli_brdrestart(phba);
/* request and enable interrupt */
intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3175 Failed to enable interrupt\n");
return -EIO;
} else {
phba->intr_mode = intr_mode;
}
rc = lpfc_online(phba);
if (rc == 0)
lpfc_unblock_mgmt_io(phba);
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_2) {
/*
* On error status condition, driver need to wait for port
* ready before performing reset.
*/
rc = lpfc_sli4_pdev_status_reg_wait(phba);
if (!rc)
return rc;
}
/* need reset: attempt for port recovery */
if (en_rn_msg)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2887 Reset Needed: Attempting Port "
"Recovery...\n");
lpfc_offline_prep(phba, mbx_action);
lpfc_offline(phba);
/* release interrupt for possible resource change */
lpfc_sli4_disable_intr(phba);
lpfc_sli_brdrestart(phba);
/* request and enable interrupt */
intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3175 Failed to enable interrupt\n");
return -EIO;
}
phba->intr_mode = intr_mode;
rc = lpfc_online(phba);
if (rc == 0)
lpfc_unblock_mgmt_io(phba);
return rc;
}
@@ -1636,10 +1639,11 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
struct lpfc_register portstat_reg = {0};
uint32_t reg_err1, reg_err2;
uint32_t uerrlo_reg, uemasklo_reg;
uint32_t pci_rd_rc1, pci_rd_rc2;
uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
bool en_rn_msg = true;
struct temp_event temp_event_data;
int rc;
struct lpfc_register portsmphr_reg;
int rc, i;
/* If the pci channel is offline, ignore possible errors, since
* we cannot communicate with the pci card anyway.
@@ -1647,6 +1651,7 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
if (pci_channel_offline(phba->pcidev))
return;
memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
@@ -1659,6 +1664,55 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
/* consider PCI bus read error as pci_channel_offline */
if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
return;
if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
lpfc_sli4_offline_eratt(phba);
return;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"7623 Checking UE recoverable");
for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
&portsmphr_reg.word0))
continue;
smphr_port_status = bf_get(lpfc_port_smphr_port_status,
&portsmphr_reg);
if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
LPFC_PORT_SEM_UE_RECOVERABLE)
break;
/*Sleep for 1Sec, before checking SEMAPHORE */
msleep(1000);
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"4827 smphr_port_status x%x : Waited %dSec",
smphr_port_status, i);
/* Recoverable UE, reset the HBA device */
if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
LPFC_PORT_SEM_UE_RECOVERABLE) {
for (i = 0; i < 20; i++) {
msleep(1000);
if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
&portsmphr_reg.word0) &&
(LPFC_POST_STAGE_PORT_READY ==
bf_get(lpfc_port_smphr_port_status,
&portsmphr_reg))) {
rc = lpfc_sli4_port_sta_fn_reset(phba,
LPFC_MBX_NO_WAIT, en_rn_msg);
if (rc == 0)
return;
lpfc_printf_log(phba,
KERN_ERR, LOG_INIT,
"4215 Failed to recover UE");
break;
}
}
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"7624 Firmware not ready: Failing UE recovery,"
" waited %dSec", i);
lpfc_sli4_offline_eratt(phba);
break;
@@ -5365,6 +5419,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
goto out_free_bsmbx;
}
}
/*
* Get sli4 parameters that override parameters from Port capabilities.
* If this call fails, it isn't critical unless the SLI4 parameters come
@@ -6093,6 +6148,7 @@ lpfc_hba_alloc(struct pci_dev *pdev)
kfree(phba);
return NULL;
}
phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
spin_lock_init(&phba->ct_ev_lock);
INIT_LIST_HEAD(&phba->ct_ev_waiters);