[SCSI] lpfc 8.1.11 : Adjust LOG_FCP logging

Adjust LOG_FCP logging to be more meaningful.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/lpfc/lpfc_attr.c

@@ -806,7 +806,7 @@ static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
 # LOG_NODE                      0x80       Node table events
 # LOG_MISC                      0x400      Miscellaneous events
 # LOG_SLI                       0x800      SLI events
-# LOG_CHK_COND                  0x1000     FCP Check condition flag
+# LOG_FCP_ERROR                 0x1000     Only log FCP errors
 # LOG_LIBDFC                    0x2000     LIBDFC events
 # LOG_ALL_MSG                   0xffff     LOG all messages
 */

drivers/scsi/lpfc/lpfc_logmsg.h

@@ -28,7 +28,7 @@
 #define LOG_NODE                      0x80	/* Node table events */
 #define LOG_MISC                      0x400	/* Miscellaneous events */
 #define LOG_SLI                       0x800	/* SLI events */
-#define LOG_CHK_COND                  0x1000	/* FCP Check condition flag */
+#define LOG_FCP_ERROR                 0x1000	/* log errors, not underruns */
 #define LOG_LIBDFC                    0x2000	/* Libdfc events */
 #define LOG_ALL_MSG                   0xffff	/* LOG all messages */
 

drivers/scsi/lpfc/lpfc_scsi.c

@@ -297,8 +297,10 @@ lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
 	uint32_t fcpi_parm = lpfc_cmd->cur_iocbq.iocb.un.fcpi.fcpi_parm;
 	uint32_t resp_info = fcprsp->rspStatus2;
 	uint32_t scsi_status = fcprsp->rspStatus3;
+	uint32_t *lp;
 	uint32_t host_status = DID_OK;
 	uint32_t rsplen = 0;
+	uint32_t logit = LOG_FCP | LOG_FCP_ERROR;
 
 	/*
 	 *  If this is a task management command, there is no
@@ -310,10 +312,25 @@ lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
 		goto out;
 	}
 
-	lpfc_printf_log(phba, KERN_WARNING, LOG_FCP,
-			"%d:0730 FCP command failed: RSP "
-			"Data: x%x x%x x%x x%x x%x x%x\n",
-			phba->brd_no, resp_info, scsi_status,
+	if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) {
+		uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen);
+		if (snslen > SCSI_SENSE_BUFFERSIZE)
+			snslen = SCSI_SENSE_BUFFERSIZE;
+
+		if (resp_info & RSP_LEN_VALID)
+		  rsplen = be32_to_cpu(fcprsp->rspRspLen);
+		memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen);
+	}
+	lp = (uint32_t *)cmnd->sense_buffer;
+
+	if (!scsi_status && (resp_info & RESID_UNDER))
+		logit = LOG_FCP;
+
+	lpfc_printf_log(phba, KERN_WARNING, logit,
+			"%d:0730 FCP command x%x failed: x%x SNS x%x x%x "
+			"Data: x%x x%x x%x x%x x%x\n",
+			phba->brd_no, cmnd->cmnd[0], scsi_status,
+			be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info,
 			be32_to_cpu(fcprsp->rspResId),
 			be32_to_cpu(fcprsp->rspSnsLen),
 			be32_to_cpu(fcprsp->rspRspLen),
@@ -328,14 +345,6 @@ lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
 		}
 	}
 
-	if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) {
-		uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen);
-		if (snslen > SCSI_SENSE_BUFFERSIZE)
-			snslen = SCSI_SENSE_BUFFERSIZE;
-
-		memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen);
-	}
-
 	cmnd->resid = 0;
 	if (resp_info & RESID_UNDER) {
 		cmnd->resid = be32_to_cpu(fcprsp->rspResId);
@@ -378,7 +387,7 @@ lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
 	 */
 	} else if ((scsi_status == SAM_STAT_GOOD) && fcpi_parm &&
 			(cmnd->sc_data_direction == DMA_FROM_DEVICE)) {
-		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR,
 			"%d:0734 FCP Read Check Error Data: "
 			"x%x x%x x%x x%x\n", phba->brd_no,
 			be32_to_cpu(fcpcmd->fcpDl),