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authorJames Smart <James.Smart@Emulex.Com>2009-04-06 18:48:10 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-27 09:42:47 -0500
commita257bf905efd22fd2c055580b0ab2e8e7ed1b6a1 (patch)
treee0f2ef6b9627d86456c92d56fa2c088c6d6544bf /drivers/scsi/lpfc/lpfc_init.c
parent3621a710a7dbb2d22a8e95d94bcf0c2d13ef57fc (diff)
downloadblackbird-op-linux-a257bf905efd22fd2c055580b0ab2e8e7ed1b6a1.tar.gz
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[SCSI] lpfc 8.3.1: misc fixes/changes
8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c104
1 files changed, 85 insertions, 19 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index e3645e8f3487..86d1bdcbf2d8 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -302,6 +302,7 @@ int
lpfc_config_port_post(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
@@ -359,6 +360,11 @@ lpfc_config_port_post(struct lpfc_hba *phba)
sizeof (struct lpfc_name));
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof (struct lpfc_name));
+
+ /* Update the fc_host data structures with new wwn. */
+ 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);
+
/* 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) {
@@ -598,8 +604,6 @@ 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;
@@ -627,20 +631,9 @@ lpfc_hba_down_post(struct lpfc_hba *phba)
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);
- }
- }
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
lpfc_sli_abort_iocb_ring(phba, pring);
spin_lock_irq(&phba->hbalock);
@@ -856,6 +849,72 @@ lpfc_offline_eratt(struct lpfc_hba *phba)
}
/**
+ * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to handle the deferred HBA hardware error
+ * conditions. This type of error is indicated by HBA by setting ER1
+ * and another ER bit in the host status register. The driver will
+ * wait until the ER1 bit clears before handling the error condition.
+ **/
+static void
+lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
+{
+ uint32_t old_host_status = phba->work_hs;
+ struct lpfc_sli_ring *pring;
+ struct lpfc_sli *psli = &phba->sli;
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0479 Deferred Adapter Hardware Error "
+ "Data: x%x x%x x%x\n",
+ phba->work_hs,
+ phba->work_status[0], phba->work_status[1]);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+
+ /*
+ * Firmware stops when it triggred erratt. That could cause the 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);
+
+ /*
+ * There was a firmware error. Take the hba offline and then
+ * attempt to restart it.
+ */
+ lpfc_offline_prep(phba);
+ lpfc_offline(phba);
+
+ /* Wait for the ER1 bit to clear.*/
+ while (phba->work_hs & HS_FFER1) {
+ msleep(100);
+ phba->work_hs = readl(phba->HSregaddr);
+ /* If driver is unloading let the worker thread continue */
+ if (phba->pport->load_flag & FC_UNLOADING) {
+ phba->work_hs = 0;
+ break;
+ }
+ }
+
+ /*
+ * This is to ptrotect against a race condition in which
+ * first write to the host attention register clear the
+ * host status register.
+ */
+ if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
+ phba->work_hs = old_host_status & ~HS_FFER1;
+
+ phba->hba_flag &= ~DEFER_ERATT;
+ phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
+ phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
+}
+
+/**
* lpfc_handle_eratt - The HBA hardware error handler
* @phba: pointer to lpfc hba data structure.
*
@@ -894,6 +953,9 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
(char *) &board_event,
LPFC_NL_VENDOR_ID);
+ if (phba->hba_flag & DEFER_ERATT)
+ lpfc_handle_deferred_eratt(phba);
+
if (phba->work_hs & HS_FFER6) {
/* Re-establishing Link */
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
@@ -1321,7 +1383,8 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
break;
case PCI_DEVICE_ID_ZEPHYR_DCSP:
- m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
+ m = (typeof(m)){"LP2105", max_speed, "PCIe"};
+ GE = 1;
break;
case PCI_DEVICE_ID_ZMID:
m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
@@ -3032,8 +3095,6 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
lpfc_free_sysfs_attr(vport);
- kthread_stop(phba->worker_thread);
-
/* Release all the vports against this physical port */
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
@@ -3051,7 +3112,12 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
* clears the rings, discards all mailbox commands, and resets
* the HBA.
*/
+
+ /* HBA interrupt will be diabled after this call */
lpfc_sli_hba_down(phba);
+ /* Stop kthread signal shall trigger work_done one more time */
+ kthread_stop(phba->worker_thread);
+ /* Final cleanup of txcmplq and reset the HBA */
lpfc_sli_brdrestart(phba);
lpfc_stop_phba_timers(phba);
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