[PATCH RFC v3 19/22] scsi: libsas: Queue TMF commands as requests
From: John Garry <hidden>
Date: 2022-10-25 09:53:47
Also in:
linux-ide, linux-scsi, lkml
Subsystem:
scsi libsas subsystem, scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Like what we did with SMP commands, send TMF commands through the block layer. In sas_task_abort() we must ensure to not confuse "TMF" for SATA with regular SATA command which comes from libata. Signed-off-by: John Garry <redacted> --- drivers/scsi/libsas/sas_scsi_host.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 2c734a87bb7c..e6ee8dd56a45 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c@@ -1067,13 +1067,17 @@ int sas_execute_tmf(struct domain_device *device, void *parameter, int res, retry; for (retry = 0; retry < TASK_RETRY; retry++) { - task = sas_alloc_slow_task(GFP_KERNEL); + struct request *rq; + + task = sas_alloc_slow_task_rq(device, GFP_KERNEL); if (!task) return -ENOMEM; - task->dev = device; task->task_proto = device->tproto; + rq = scsi_cmd_to_rq(task->uldd_task); + rq->timeout = TASK_TIMEOUT; + if (dev_is_sata(device)) { task->ata_task.device_control_reg_update = 1; if (force_phy_id >= 0) {
@@ -1085,20 +1089,9 @@ int sas_execute_tmf(struct domain_device *device, void *parameter, memcpy(&task->ssp_task, parameter, para_len); } - task->task_done = sas_task_internal_done; task->tmf = tmf; - task->slow_task->timer.function = sas_task_internal_timedout; - task->slow_task->timer.expires = jiffies + TASK_TIMEOUT; - add_timer(&task->slow_task->timer); - - res = i->dft->lldd_execute_task(task, GFP_KERNEL); - if (res) { - del_timer_sync(&task->slow_task->timer); - pr_err("executing TMF task failed %016llx (%d)\n", - SAS_ADDR(device->sas_addr), res); - break; - } + blk_execute_rq_nowait(rq, true); wait_for_completion(&task->slow_task->completion);
@@ -1270,7 +1263,7 @@ void sas_task_abort(struct sas_task *task) return; } - if (dev_is_sata(task->dev)) + if (dev_is_sata(task->dev) && !task->slow_task) sas_ata_task_abort(task); else blk_abort_request(scsi_cmd_to_rq(sc));
--
2.35.3