[SCSI] qla2xxx: Add DMI (Diagnostics Monitoring Interface) support.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 78eec67..1a766b2 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -338,6 +338,53 @@
.write = qla2x00_sysfs_write_vpd,
};
+static ssize_t
+qla2x00_sysfs_read_sfp(struct kobject *kobj, char *buf, loff_t off,
+ size_t count)
+{
+ struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ uint16_t iter, addr, offset;
+ int rval;
+
+ if (!capable(CAP_SYS_ADMIN) || off != 0 || count != SFP_DEV_SIZE * 2)
+ return 0;
+
+ addr = 0xa0;
+ for (iter = 0, offset = 0; iter < (SFP_DEV_SIZE * 2) / SFP_BLOCK_SIZE;
+ iter++, offset += SFP_BLOCK_SIZE) {
+ if (iter == 4) {
+ /* Skip to next device address. */
+ addr = 0xa2;
+ offset = 0;
+ }
+
+ rval = qla2x00_read_sfp(ha, ha->sfp_data_dma, addr, offset,
+ SFP_BLOCK_SIZE);
+ if (rval != QLA_SUCCESS) {
+ qla_printk(KERN_WARNING, ha,
+ "Unable to read SFP data (%x/%x/%x).\n", rval,
+ addr, offset);
+ count = 0;
+ break;
+ }
+ memcpy(buf, ha->sfp_data, SFP_BLOCK_SIZE);
+ buf += SFP_BLOCK_SIZE;
+ }
+
+ return count;
+}
+
+static struct bin_attribute sysfs_sfp_attr = {
+ .attr = {
+ .name = "sfp",
+ .mode = S_IRUSR | S_IWUSR,
+ .owner = THIS_MODULE,
+ },
+ .size = SFP_DEV_SIZE * 2,
+ .read = qla2x00_sysfs_read_sfp,
+};
+
void
qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha)
{
@@ -349,6 +396,9 @@
sysfs_create_bin_file(&host->shost_gendev.kobj,
&sysfs_optrom_ctl_attr);
sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_vpd_attr);
+ if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
+ sysfs_create_bin_file(&host->shost_gendev.kobj,
+ &sysfs_sfp_attr);
}
void
@@ -362,6 +412,9 @@
sysfs_remove_bin_file(&host->shost_gendev.kobj,
&sysfs_optrom_ctl_attr);
sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_vpd_attr);
+ if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
+ sysfs_remove_bin_file(&host->shost_gendev.kobj,
+ &sysfs_sfp_attr);
if (ha->beacon_blink_led == 1)
ha->isp_ops.beacon_off(ha);