Commit 986d6bad authored by Sumit Saxena's avatar Sumit Saxena Committed by Martin K. Petersen
Browse files

scsi: mpi3mr: Expose adapter state to sysfs 

Link: https://lore.kernel.org/r/20220429211641.642010-7-sumit.saxena@broadcom.com


Reviewed-by: default avatarHimanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: default avatarSumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 43ca1100

drivers/scsi/mpi3mr/mpi3mr.h

+1 −1
Original line number Diff line number Diff line
@@ -1056,5 +1056,5 @@ int mpi3mr_pel_get_seqnum_post(struct mpi3mr_ioc *mrioc, 
	struct mpi3mr_drv_cmd *drv_cmd);

void mpi3mr_app_save_logdata(struct mpi3mr_ioc *mrioc, char *event_data,

	u16 event_data_size);



extern const struct attribute_group *mpi3mr_host_groups[];

#endif /*MPI3MR_H_INCLUDED*/

drivers/scsi/mpi3mr/mpi3mr_app.c

+46 −0
Original line number Diff line number Diff line
@@ -1215,3 +1215,49 @@ void mpi3mr_bsg_init(struct mpi3mr_ioc *mrioc) 
err_device_add:

	kfree(mrioc->bsg_dev);

}



/**

 * adapter_state_show - SysFS callback for adapter state show

 * @dev: class device

 * @attr: Device attributes

 * @buf: Buffer to copy

 *

 * Return: snprintf() return after copying adapter state

 */

static ssize_t

adp_state_show(struct device *dev, struct device_attribute *attr,

	char *buf)

{

	struct Scsi_Host *shost = class_to_shost(dev);

	struct mpi3mr_ioc *mrioc = shost_priv(shost);

	enum mpi3mr_iocstate ioc_state;

	uint8_t adp_state;



	ioc_state = mpi3mr_get_iocstate(mrioc);

	if (ioc_state == MRIOC_STATE_UNRECOVERABLE)

		adp_state = MPI3MR_BSG_ADPSTATE_UNRECOVERABLE;

	else if ((mrioc->reset_in_progress) || (mrioc->stop_bsgs))

		adp_state = MPI3MR_BSG_ADPSTATE_IN_RESET;

	else if (ioc_state == MRIOC_STATE_FAULT)

		adp_state = MPI3MR_BSG_ADPSTATE_FAULT;

	else

		adp_state = MPI3MR_BSG_ADPSTATE_OPERATIONAL;



	return snprintf(buf, PAGE_SIZE, "%u\n", adp_state);

}



static DEVICE_ATTR_RO(adp_state);



static struct attribute *mpi3mr_host_attrs[] = {

	&dev_attr_adp_state.attr,

	NULL,

};



static const struct attribute_group mpi3mr_host_attr_group = {

	.attrs = mpi3mr_host_attrs

};



const struct attribute_group *mpi3mr_host_groups[] = {

	&mpi3mr_host_attr_group,

	NULL,

};

drivers/scsi/mpi3mr/mpi3mr_os.c

+1 −0
Original line number Diff line number Diff line
@@ -4134,6 +4134,7 @@ static struct scsi_host_template mpi3mr_driver_template = { 
	.max_segment_size		= 0xffffffff,

	.track_queue_depth		= 1,

	.cmd_size			= sizeof(struct scmd_priv),

	.shost_groups			= mpi3mr_host_groups,

};



/**