[PATCH] ipr add error logs to abort and reset paths

This patch adds additional error logging to abort, device reset,
and bus reset paths to help in diagnosing scsi problems on ipr.

drivers/scsi/ipr.c

@@ -2972,6 +2972,7 @@ static int ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
 	cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
 	cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
 
+	ipr_sdev_err(scsi_cmd->device, "Resetting device\n");
 	ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
 
 	ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
@@ -3045,6 +3046,7 @@ static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
 		return;
 	}
 
+	ipr_sdev_err(ipr_cmd->sdev, "Abort timed out. Resetting bus\n");
 	reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
 	ipr_cmd->sibling = reset_cmd;
 	reset_cmd->sibling = ipr_cmd;
@@ -3106,7 +3108,9 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
 	cmd_pkt->cdb[3] = (ioarcb_addr >> 16) & 0xff;
 	cmd_pkt->cdb[4] = (ioarcb_addr >> 8) & 0xff;
 	cmd_pkt->cdb[5] = ioarcb_addr & 0xff;
+	ipr_cmd->sdev = scsi_cmd->device;
 
+	ipr_sdev_err(scsi_cmd->device, "Aborting command: %02X\n", scsi_cmd->cmnd[0]);
 	ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_ABORT_TASK_TIMEOUT);
 	ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
 

drivers/scsi/ipr.h

@@ -939,6 +939,7 @@ struct ipr_cmnd {
 		unsigned long scratch;
 		struct ipr_resource_entry *res;
 		struct ipr_cmnd *sibling;
+		struct scsi_device *sdev;
 	};
 
 	struct ipr_ioa_cfg *ioa_cfg;