[SCSI] qla2xxx: Export XGMAC statistics on supported ISPs.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 524ceb9..e8c1c9e 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -692,6 +692,58 @@
.read = qla2x00_sysfs_read_edc_status,
};
+static ssize_t
+qla2x00_sysfs_read_xgmac_stats(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ struct qla_hw_data *ha = vha->hw;
+ int rval;
+ uint16_t actual_size;
+
+ if (!capable(CAP_SYS_ADMIN) || off != 0 || count > XGMAC_DATA_SIZE)
+ return 0;
+
+ if (ha->xgmac_data)
+ goto do_read;
+
+ ha->xgmac_data = dma_alloc_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
+ &ha->xgmac_data_dma, GFP_KERNEL);
+ if (!ha->xgmac_data) {
+ qla_printk(KERN_WARNING, ha,
+ "Unable to allocate memory for XGMAC read-data.\n");
+ return 0;
+ }
+
+do_read:
+ actual_size = 0;
+ memset(ha->xgmac_data, 0, XGMAC_DATA_SIZE);
+
+ rval = qla2x00_get_xgmac_stats(vha, ha->xgmac_data_dma,
+ XGMAC_DATA_SIZE, &actual_size);
+ if (rval != QLA_SUCCESS) {
+ qla_printk(KERN_WARNING, ha,
+ "Unable to read XGMAC data (%x).\n", rval);
+ count = 0;
+ }
+
+ count = actual_size > count ? count: actual_size;
+ memcpy(buf, ha->xgmac_data, count);
+
+ return count;
+}
+
+static struct bin_attribute sysfs_xgmac_stats_attr = {
+ .attr = {
+ .name = "xgmac_stats",
+ .mode = S_IRUSR,
+ },
+ .size = 0,
+ .read = qla2x00_sysfs_read_xgmac_stats,
+};
+
static struct sysfs_entry {
char *name;
struct bin_attribute *attr;
@@ -706,6 +758,7 @@
{ "reset", &sysfs_reset_attr, },
{ "edc", &sysfs_edc_attr, 2 },
{ "edc_status", &sysfs_edc_status_attr, 2 },
+ { "xgmac_stats", &sysfs_xgmac_stats_attr, 3 },
{ NULL },
};
@@ -721,6 +774,8 @@
continue;
if (iter->is4GBp_only == 2 && !IS_QLA25XX(vha->hw))
continue;
+ if (iter->is4GBp_only == 3 && !IS_QLA81XX(vha->hw))
+ continue;
ret = sysfs_create_bin_file(&host->shost_gendev.kobj,
iter->attr);
@@ -743,6 +798,8 @@
continue;
if (iter->is4GBp_only == 2 && !IS_QLA25XX(ha))
continue;
+ if (iter->is4GBp_only == 3 && !IS_QLA81XX(ha))
+ continue;
sysfs_remove_bin_file(&host->shost_gendev.kobj,
iter->attr);