diff options
| author | Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com> | 2013-09-18 12:54:41 +0530 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-10-25 09:58:14 +0100 |
| commit | 966fdcff8eb78cce81da8f5adc5b7fe601b53d18 (patch) | |
| tree | 31edbb4ff5b10f2aea4a580d4262c9ebdf60e12f | |
| parent | cb993e5d50dd82e3d675225e2eff3c77951682b0 (diff) | |
| download | linux-966fdcff8eb78cce81da8f5adc5b7fe601b53d18.tar.bz2 | |
[SCSI] pm80xx: Display controller BIOS version.
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_ctl.c | 34 | ||||
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_ctl.h | 2 |
2 files changed, 36 insertions, 0 deletions
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c index d99f41c2ca13..5a19e1930b4b 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.c +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -309,6 +309,39 @@ static ssize_t pm8001_ctl_aap_log_show(struct device *cdev, } static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); /** + * pm8001_ctl_bios_version_show - Bios version Display + * @cdev:pointer to embedded class device + * @buf:the buffer returned + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + char *str = buf; + void *virt_addr; + int bios_index; + DECLARE_COMPLETION_ONSTACK(completion); + struct pm8001_ioctl_payload payload; + + pm8001_ha->nvmd_completion = &completion; + payload.minor_function = 7; + payload.offset = 0; + payload.length = 4096; + payload.func_specific = kzalloc(4096, GFP_KERNEL); + PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + wait_for_completion(&completion); + virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr; + for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT; + bios_index++) + str += sprintf(str, "%c", + *((u8 *)((u8 *)virt_addr+bios_index))); + return str - buf; +} +static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL); +/** * pm8001_ctl_aap_log_show - IOP event log * @cdev: pointer to embedded class device * @buf: the buffer returned @@ -609,6 +642,7 @@ struct device_attribute *pm8001_host_attrs[] = { &dev_attr_sas_spec_support, &dev_attr_logging_level, &dev_attr_host_sas_address, + &dev_attr_bios_version, NULL, }; diff --git a/drivers/scsi/pm8001/pm8001_ctl.h b/drivers/scsi/pm8001/pm8001_ctl.h index 63ad4aa0c422..c6d8fdd3b9b9 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.h +++ b/drivers/scsi/pm8001/pm8001_ctl.h @@ -45,6 +45,8 @@ #define HEADER_LEN 28 #define SIZE_OFFSET 16 +#define BIOSOFFSET 56 +#define BIOS_OFFSET_LIMIT 61 #define FLASH_OK 0x000000 #define FAIL_OPEN_BIOS_FILE 0x000100 |