diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_scsi.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index f69ef78ea930..9a01f583e562 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -372,6 +372,31 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) return ret; } +/** + * zfcp_scsi_sysfs_host_reset() - Support scsi_host sysfs attribute host_reset. + * @shost: Pointer to Scsi_Host to perform action on. + * @reset_type: We support %SCSI_ADAPTER_RESET but not %SCSI_FIRMWARE_RESET. + * + * Return: 0 on %SCSI_ADAPTER_RESET, -%EOPNOTSUPP otherwise. + * + * This is similar to zfcp_sysfs_adapter_failed_store(). + */ +static int zfcp_scsi_sysfs_host_reset(struct Scsi_Host *shost, int reset_type) +{ + struct zfcp_adapter *adapter = + (struct zfcp_adapter *)shost->hostdata[0]; + int ret = 0; + + if (reset_type != SCSI_ADAPTER_RESET) { + ret = -EOPNOTSUPP; + zfcp_dbf_scsi_eh("scshr_n", adapter, ~0, ret); + return ret; + } + + zfcp_erp_adapter_reset_sync(adapter, "scshr_y"); + return ret; +} + struct scsi_transport_template *zfcp_scsi_transport_template; static struct scsi_host_template zfcp_scsi_host_template = { @@ -387,6 +412,7 @@ static struct scsi_host_template zfcp_scsi_host_template = { .slave_configure = zfcp_scsi_slave_configure, .slave_destroy = zfcp_scsi_slave_destroy, .change_queue_depth = scsi_change_queue_depth, + .host_reset = zfcp_scsi_sysfs_host_reset, .proc_name = "zfcp", .can_queue = 4096, .this_id = -1, |