diff options
| author | Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> | 2017-02-02 15:53:32 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-03 10:35:03 -0500 |
| commit | 999b3ffc0f3b12bb9eeafabaa88176bb7acb84a1 (patch) | |
| tree | 17bcfab9fd868037576e644d9b76918bf5874e79 /drivers/scsi/aacraid/linit.c | |
| parent | 954b2b5ac76d6bde80974c0779d36f054e036aa5 (diff) | |
scsi: aacraid: VPD 83 type3 support
This patch adds support to retrieve the unique identifier data (VPD page
83 type3) for Logical drives created on SmartIOC 2000 products. In
addition added a sysfs device structure to expose the id information.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/aacraid/linit.c')
| -rw-r--r-- | drivers/scsi/aacraid/linit.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index c09b71c7dd8e..58bed5df0860 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -556,8 +556,39 @@ static struct device_attribute aac_raid_level_attr = { .show = aac_show_raid_level }; +static ssize_t aac_show_unique_id(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata); + unsigned char sn[16]; + + memset(sn, 0, sizeof(sn)); + + if (sdev_channel(sdev) == CONTAINER_CHANNEL) + memcpy(sn, aac->fsa_dev[sdev_id(sdev)].identifier, sizeof(sn)); + + return snprintf(buf, 16 * 2 + 2, + "%02X%02X%02X%02X%02X%02X%02X%02X %02X%02X%02X%02X%02X%02X%02X%02X\n", + sn[0], sn[1], sn[2], sn[3], + sn[4], sn[5], sn[6], sn[7], + sn[8], sn[9], sn[10], sn[11], + sn[12], sn[13], sn[14], sn[15]); +} + +static struct device_attribute aac_unique_id_attr = { + .attr = { + .name = "unique_id", + .mode = 0444, + }, + .show = aac_show_unique_id +}; + + + static struct device_attribute *aac_dev_attrs[] = { &aac_raid_level_attr, + &aac_unique_id_attr, NULL, }; |