[SCSI] qla2xxx: Track total number of ISP aborts.

This parameter counts the total number of ISP aborts during
driver execution.  The value is exported through a DEVICE_ATTR()
off the scsi_host.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

3 files changed, 19 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 8728e873996d..43e400894733 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -809,6 +809,16 @@ qla2x00_optrom_fw_version_show(struct device *dev,
             ha->fw_revision[3]);
 }
 
+static ssize_t
+qla2x00_total_isp_aborts_show(struct device *dev,
+                              struct device_attribute *attr, char *buf)
+{
+        scsi_qla_host_t *ha = shost_priv(class_to_shost(dev));
+
+        return snprintf(buf, PAGE_SIZE, "%d\n",
+            ha->qla_stats.total_isp_aborts);
+}
+
 static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
 static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
 static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
@@ -831,6 +841,8 @@ static DEVICE_ATTR(optrom_fcode_version, S_IRUGO,
                    qla2x00_optrom_fcode_version_show, NULL);
 static DEVICE_ATTR(optrom_fw_version, S_IRUGO, qla2x00_optrom_fw_version_show,
                    NULL);
+static DEVICE_ATTR(total_isp_aborts, S_IRUGO, qla2x00_total_isp_aborts_show,
+                   NULL);
 
 struct device_attribute *qla2x00_host_attrs[] = {
         &dev_attr_driver_version,
@@ -849,6 +861,7 @@ struct device_attribute *qla2x00_host_attrs[] = {
         &dev_attr_optrom_efi_version,
         &dev_attr_optrom_fcode_version,
         &dev_attr_optrom_fw_version,
+        &dev_attr_total_isp_aborts,
         NULL,
 };
 
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 7b0ddc83413f..fe1eada6cfc2 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2154,6 +2154,10 @@ struct qla_chip_state_84xx {
         uint32_t gold_fw_version;
 };
 
+struct qla_statistics {
+        uint32_t total_isp_aborts;
+};
+
 /*
  * Linux Host Adapter structure
  */
@@ -2595,6 +2599,7 @@ typedef struct scsi_qla_host {
         int             cur_vport_count;
 
         struct qla_chip_state_84xx *cs84xx;
+        struct qla_statistics qla_stats;
 } scsi_qla_host_t;
 
 
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index c7388fadf225..833a6429d9b9 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3237,6 +3237,7 @@ qla2x00_abort_isp(scsi_qla_host_t *ha)
         if (ha->flags.online) {
                 ha->flags.online = 0;
                 clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+                ha->qla_stats.total_isp_aborts++;
 
                 qla_printk(KERN_INFO, ha,
                     "Performing ISP error recovery - ha= %p.\n", ha);