From: John Garry <john.garry@huawei.com>
To: <axboe@kernel.dk>, <damien.lemoal@opensource.wdc.com>,
<bvanassche@acm.org>, <jejb@linux.ibm.com>,
<martin.petersen@oracle.com>, <hch@lst.de>, <ming.lei@redhat.com>,
<hare@suse.de>
Cc: <chenxiang66@hisilicon.com>, <linux-block@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-ide@vger.kernel.org>,
<linux-scsi@vger.kernel.org>, <dm-devel@redhat.com>,
<beanhuo@micron.com>, John Garry <john.garry@huawei.com>
Subject: [PATCH 08/11] scsi: libsas: Change ATA support to deal with each qc having a SCSI command
Date: Tue, 22 Mar 2022 18:39:42 +0800 [thread overview]
Message-ID: <1647945585-197349-9-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1647945585-197349-1-git-send-email-john.garry@huawei.com>
Now that each ATA qc has a SCSI command associated, change the qc <->
scsi_cmnd <-> sas_task referencing to deal with this. Essentially
task->uldd_task = scmd always. We need to do this for sas_execute_tmf(),
as those ATA commands have no qc.
TODO: rename ASSIGN_SAS_TASK and TO_SAS_TASK to be more appropriate.
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 11 +----------
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 3 ++-
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 3 ++-
drivers/scsi/libsas/sas_ata.c | 11 ++++++-----
4 files changed, 11 insertions(+), 17 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 461ef8a76c4c..e438c68e249a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -520,16 +520,7 @@ static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
return -ECOMM;
}
- if (task->uldd_task) {
- struct ata_queued_cmd *qc;
-
- if (dev_is_sata(device)) {
- qc = task->uldd_task;
- scmd = qc->scsicmd;
- } else {
- scmd = task->uldd_task;
- }
- }
+ scmd = task->uldd_task;
if (scmd) {
unsigned int dq_index;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 455d49299ddf..d1f2c8fbdc79 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -2538,7 +2538,8 @@ static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
/* dw2 */
if (task->ata_task.use_ncq) {
- struct ata_queued_cmd *qc = task->uldd_task;
+ struct scsi_cmnd *scmd = task->uldd_task;
+ struct ata_queued_cmd *qc = (struct ata_queued_cmd *)scmd->host_scribble;
hdr_tag = qc->tag;
task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 79f87d7c3e68..e3e02a24ee76 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -1421,7 +1421,8 @@ static void prep_ata_v3_hw(struct hisi_hba *hisi_hba,
/* dw2 */
if (task->ata_task.use_ncq) {
- struct ata_queued_cmd *qc = task->uldd_task;
+ struct scsi_cmnd *scmd = task->uldd_task;
+ struct ata_queued_cmd *qc = (struct ata_queued_cmd *)scmd->host_scribble;
hdr_tag = qc->tag;
task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index d34c82e24d9a..4d2b8fb31f30 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -72,7 +72,8 @@ static enum ata_completion_errors sas_to_ata_err(struct task_status_struct *ts)
static void sas_ata_task_done(struct sas_task *task)
{
- struct ata_queued_cmd *qc = task->uldd_task;
+ struct scsi_cmnd *scmd = task->uldd_task;
+ struct ata_queued_cmd *qc = TO_SAS_TASK(scmd);
struct domain_device *dev = task->dev;
struct task_status_struct *stat = &task->task_status;
struct ata_task_resp *resp = (struct ata_task_resp *)stat->buf;
@@ -184,7 +185,7 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc)
qc->tf.nsect = 0;
ata_tf_to_fis(&qc->tf, qc->dev->link->pmp, 1, (u8 *)&task->ata_task.fis);
- task->uldd_task = qc;
+ task->uldd_task = qc->scsicmd;
if (ata_is_atapi(qc->tf.protocol)) {
memcpy(task->ata_task.atapi_packet, qc->cdb, qc->dev->cdb_len);
task->total_xfer_len = qc->nbytes;
@@ -207,8 +208,7 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc)
task->ata_task.use_ncq = ata_is_ncq(qc->tf.protocol);
task->ata_task.dma_xfer = ata_is_dma(qc->tf.protocol);
- if (qc->scsicmd)
- ASSIGN_SAS_TASK(qc->scsicmd, task);
+ ASSIGN_SAS_TASK(qc->scsicmd, qc);
ret = i->dft->lldd_execute_task(task, GFP_ATOMIC);
if (ret) {
@@ -583,7 +583,8 @@ int sas_ata_init(struct domain_device *found_dev)
void sas_ata_task_abort(struct sas_task *task)
{
- struct ata_queued_cmd *qc = task->uldd_task;
+ struct scsi_cmnd *scmd = task->uldd_task;
+ struct ata_queued_cmd *qc = TO_SAS_TASK(scmd);
struct completion *waiting;
/* Bounce SCSI-initiated commands to the SCSI EH */
--
2.26.2
next prev parent reply other threads:[~2022-03-22 10:47 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 10:39 [PATCH RFC 00/11] blk-mq/libata/scsi: SCSI driver tagging improvements John Garry
2022-03-22 10:39 ` [PATCH 01/11] blk-mq: Add blk_mq_init_queue_ops() John Garry
2022-03-22 11:18 ` Christoph Hellwig
2022-03-22 11:33 ` John Garry
2022-03-22 12:16 ` Hannes Reinecke
2022-03-22 12:30 ` John Garry
2022-03-22 14:03 ` Hannes Reinecke
2022-03-22 15:17 ` John Garry
2022-03-22 15:31 ` Hannes Reinecke
2022-03-23 2:57 ` Bart Van Assche
2022-03-23 9:01 ` John Garry
2022-03-22 10:39 ` [PATCH 02/11] scsi: core: Add SUBMITTED_BY_SCSI_CUSTOM_OPS John Garry
2022-03-22 11:20 ` Christoph Hellwig
2022-03-22 10:39 ` [PATCH 03/11] libata: Send internal commands through the block layer John Garry
2022-03-22 11:20 ` Christoph Hellwig
2022-03-22 11:36 ` John Garry
2022-04-07 14:32 ` John Garry
2022-03-22 10:39 ` [PATCH 04/11] scsi: libsas: Send SMP " John Garry
2022-03-22 11:23 ` Christoph Hellwig
2022-03-22 14:37 ` John Garry
2022-03-22 10:39 ` [PATCH 05/11] scsi: libsas: Send TMF " John Garry
2022-03-22 10:39 ` [PATCH 06/11] scsi: core: Add scsi_alloc_request_hwq() John Garry
2022-03-22 10:39 ` [PATCH 07/11] scsi: libsas: Send internal abort commands through the block layer John Garry
2022-03-22 10:39 ` John Garry [this message]
2022-03-22 10:39 ` [PATCH 09/11] scsi: libsas: Add sas_task_to_unique_tag() John Garry
2022-03-22 10:39 ` [PATCH 10/11] scsi: libsas: Add sas_task_to_hwq() John Garry
2022-03-22 10:39 ` [PATCH 11/11] scsi: hisi_sas: Remove private tag management John Garry
2022-03-22 11:30 ` [PATCH RFC 00/11] blk-mq/libata/scsi: SCSI driver tagging improvements Hannes Reinecke
2022-03-22 12:17 ` John Garry
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