[SCSI] lpfc 8.2.8 : Add support for PCI-EEH permanent disabling
Add support for PCI-EEH permanent-disabling a device via lpfc_pci_remove_one()
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 857bc0a..1812e18 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -2377,6 +2377,70 @@
}
/**
+ * lpfc_sli_flush_fcp_rings: flush all iocbs in the fcp ring.
+ * @phba: Pointer to HBA context object.
+ *
+ * This function flushes all iocbs in the fcp ring and frees all the iocb
+ * objects in txq and txcmplq. This function will not issue abort iocbs
+ * for all the iocb commands in txcmplq, they will just be returned with
+ * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
+ * slot has been permanently disabled.
+ **/
+void
+lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
+{
+ LIST_HEAD(txq);
+ LIST_HEAD(txcmplq);
+ struct lpfc_iocbq *iocb;
+ IOCB_t *cmd = NULL;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ /* Currently, only one fcp ring */
+ pring = &psli->ring[psli->fcp_ring];
+
+ spin_lock_irq(&phba->hbalock);
+ /* Retrieve everything on txq */
+ list_splice_init(&pring->txq, &txq);
+ pring->txq_cnt = 0;
+
+ /* Retrieve everything on the txcmplq */
+ list_splice_init(&pring->txcmplq, &txcmplq);
+ pring->txcmplq_cnt = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Flush the txq */
+ while (!list_empty(&txq)) {
+ iocb = list_get_first(&txq, 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_DOWN;
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ }
+ }
+
+ /* Flush the txcmpq */
+ while (!list_empty(&txcmplq)) {
+ iocb = list_get_first(&txcmplq, 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_DOWN;
+ (iocb->iocb_cmpl) (phba, iocb, iocb);
+ }
+ }
+}
+
+/**
* lpfc_sli_brdready: Check for host status bits.
* @phba: Pointer to HBA context object.
* @mask: Bit mask to be checked.