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[SCSI] pm80xx: Display controller BIOS version.

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Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Anand Kumar Santhanam 2013-09-18 12:54:41 +05:30 committed by James Bottomley
parent cb993e5d50
commit 966fdcff8e
2 changed files with 36 additions and 0 deletions
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34
drivers/scsi/pm8001/pm8001_ctl.c
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@ -308,6 +308,39 @@ static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
return str - buf;
}
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
@ -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,
};

2
drivers/scsi/pm8001/pm8001_ctl.h
View File

@ -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