diff options
| author | Tyrel Datwyler <tyreld@linux.ibm.com> | 2021-01-14 14:31:41 -0600 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-01-14 22:29:38 -0500 |
| commit | cb72477be7290ce81ad81838039e106c194ab16f (patch) | |
| tree | 0fafaec4596f380ff164a3ab393db4dca2ee0014 /drivers/scsi/ibmvscsi | |
| parent | c53408baa50297ec29641a973ce78856900d910a (diff) | |
| download | linux-cb72477be7290ce81ad81838039e106c194ab16f.tar.bz2 | |
scsi: ibmvfc: Set and track hw queue in ibmvfc_event struct
Extract the hwq id from a SCSI command and store it in the ibmvfc_event
structure to identify which Sub-CRQ to send the command down when channels
are being utilized.
Link: https://lore.kernel.org/r/20210114203148.246656-15-tyreld@linux.ibm.com
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ibmvscsi')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 31f0e55098d6..dd117ca8fef6 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -1483,6 +1483,7 @@ static void ibmvfc_init_event(struct ibmvfc_event *evt, evt->_done = done; evt->done = ibmvfc_locked_done; } + evt->hwq = 0; } /** @@ -1839,6 +1840,8 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) struct ibmvfc_cmd *vfc_cmd; struct ibmvfc_fcp_cmd_iu *iu; struct ibmvfc_event *evt; + u32 tag_and_hwq = blk_mq_unique_tag(cmnd->request); + u16 hwq = blk_mq_unique_tag_to_hwq(tag_and_hwq); int rc; if (unlikely((rc = fc_remote_port_chkready(rport))) || @@ -1865,6 +1868,8 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } vfc_cmd->correlation = cpu_to_be64(evt); + if (vhost->using_channels) + evt->hwq = hwq % vhost->scsi_scrqs.active_queues; if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev)))) return ibmvfc_send_event(evt, vhost, 0); diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 3d76cd3c1fd9..2dbce7071409 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -753,6 +753,7 @@ struct ibmvfc_event { struct completion comp; struct completion *eh_comp; struct timer_list timer; + u16 hwq; }; /* a pool of event structs for use */ |