From: James Smart <james.smart@emulex.com>
Date: Fri, 2 Mar 2012 03:34:36 +0000 (-0500)
Subject: [SCSI] lpfc 8.3.30: Fix driver handling of XRI Aborted CQE response
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5c1db2accd4b3e21aa7440526af9d2d0ccf5241c;p=linux-beck.git

[SCSI] lpfc 8.3.30: Fix driver handling of XRI Aborted CQE response

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 9e2b9b227e1a..4aecb5c4e602 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -338,6 +338,12 @@ struct lpfc_cqe {
 #define CQE_CODE_XRI_ABORTED		0x5
 #define CQE_CODE_RECEIVE_V1		0x9
 
+/*
+ * Define mask value for xri_aborted and wcqe completed CQE extended status.
+ * Currently, extended status is limited to 9 bits (0x0 -> 0x103) .
+ */
+#define WCQE_PARAM_MASK		0x1FF;
+
 /* completion queue entry for wqe completions */
 struct lpfc_wcqe_complete {
 	uint32_t word0;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 99afe1522273..c516b040d45c 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -8388,6 +8388,7 @@ lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
 			   struct sli4_wcqe_xri_aborted *axri)
 {
 	struct lpfc_vport *vport;
+	uint32_t ext_status = 0;
 
 	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
@@ -8399,12 +8400,20 @@ lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
 	vport = ndlp->vport;
 	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
 			"3116 Port generated FCP XRI ABORT event on "
-			"vpi %d rpi %d xri x%x status 0x%x\n",
+			"vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
 			ndlp->vport->vpi, ndlp->nlp_rpi,
 			bf_get(lpfc_wcqe_xa_xri, axri),
-			bf_get(lpfc_wcqe_xa_status, axri));
+			bf_get(lpfc_wcqe_xa_status, axri),
+			axri->parameter);
 
-	if (bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT)
+	/*
+	 * Catch the ABTS protocol failure case.  Older OCe FW releases returned
+	 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
+	 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
+	 */
+	ext_status = axri->parameter & WCQE_PARAM_MASK;
+	if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
+	    ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
 		lpfc_sli_abts_recover_port(vport, ndlp);
 }