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Commit 966fdcff authored by Anand Kumar Santhanam's avatar Anand Kumar Santhanam Committed by James Bottomley
Browse files

[SCSI] pm80xx: Display controller BIOS version. 



Signed-off-by: default avatar <Anandkumar.Santhanam@pmcs.com>
Reviewed-by: default avatarJack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent cb993e5d

drivers/scsi/pm8001/pm8001_ctl.c

+34 −0
Original line number Diff line number Diff line
@@ -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,

};

drivers/scsi/pm8001/pm8001_ctl.h

+2 −0
Original line number Diff line number Diff line
@@ -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