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| author | Sumit Saxena <sumit.saxena@broadcom.com> | 2022-04-29 17:16:39 -0400 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-05-02 17:02:42 -0400 |
| commit | 986d6bad2103fb24bd886aad455245ace168c984 (patch) | |
| tree | f8f0d6d4c3f6b68af1aea3f82f44215d23b647c1 /drivers | |
| parent | 43ca110050988c7a0e581d24ce212ef34a4cdf29 (diff) | |
| download | linux-986d6bad2103fb24bd886aad455245ace168c984.tar.bz2 | |
scsi: mpi3mr: Expose adapter state to sysfs
Link: https://lore.kernel.org/r/20220429211641.642010-7-sumit.saxena@broadcom.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_app.c | 46 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_os.c | 1 |
3 files changed, 48 insertions, 1 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index ad1270cba280..0c6efb0eb063 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -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*/ diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c index 06a1e950bec4..5221058e3d6b 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_app.c +++ b/drivers/scsi/mpi3mr/mpi3mr_app.c @@ -1215,3 +1215,49 @@ err_setup_queue: 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, +}; diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 19298136edb6..89a4918c4a9e 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -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, }; /** |