* [PATCH v3 01/18] scsi: libsas: Handle non-TMF codes in sas_scsi_find_task()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 02/18] scsi: libsas: Use enum for response frame DATAPRES field John Garry
` (18 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
LLDD TMF callbacks may return linux or other error codes instead of TMF
codes. This may cause problems in sas_scsi_find_task() ->
.lldd_query_task(), as only TMF codes are handled there. As such, we may
not return a task_disposition type from sas_scsi_find_task(). Function
sas_eh_handle_sas_errors() only handles that type, and will only progress
error handling for those recognised types.
Return TASK_ABORT_FAILED upon exit on the assumption that the command may
still be alive and error handling should be escalated.
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/libsas/sas_scsi_host.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index bcb391b0c7ed..19cb954afd80 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -316,11 +316,13 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task)
pr_notice("%s: task 0x%p failed to abort\n",
__func__, task);
return TASK_ABORT_FAILED;
+ default:
+ pr_notice("%s: task 0x%p result code %d not handled\n",
+ __func__, task, res);
}
-
}
}
- return res;
+ return TASK_ABORT_FAILED;
}
static int sas_recover_lu(struct domain_device *dev, struct scsi_cmnd *cmd)
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 02/18] scsi: libsas: Use enum for response frame DATAPRES field
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
2022-02-22 12:50 ` [PATCH v3 01/18] scsi: libsas: Handle non-TMF codes in sas_scsi_find_task() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 03/18] scsi: libsas: Delete lldd_clear_aca callback John Garry
` (17 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
As defined in table 126 of the SAS spec 1.1, use an enum for the DATAPRES
field, which makes reading the code easier.
Also change sas_ssp_task_response() to use a switch statement, which is
more suitable (than if-else), as suggested by Christoph.
Suggested-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/aic94xx/aic94xx_tmf.c | 2 +-
drivers/scsi/isci/request.c | 7 ++++---
drivers/scsi/libsas/sas_task.c | 14 +++++++++-----
drivers/scsi/mvsas/mv_sas.c | 2 +-
include/scsi/sas.h | 7 +++++++
5 files changed, 22 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c
index 0eb6e206a2b4..2ba91eaaf0ee 100644
--- a/drivers/scsi/aic94xx/aic94xx_tmf.c
+++ b/drivers/scsi/aic94xx/aic94xx_tmf.c
@@ -287,7 +287,7 @@ static int asd_get_tmf_resp_tasklet(struct asd_ascb *ascb,
fh = edb->vaddr + 16;
ru = edb->vaddr + 16 + sizeof(*fh);
res = ru->status;
- if (ru->datapres == 1) /* Response data present */
+ if (ru->datapres == SAS_DATAPRES_RESPONSE_DATA)
res = ru->resp_data[3];
#if 0
ascb->tag = fh->tag;
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index 92394884fbeb..ac17e3a35d2c 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -1047,7 +1047,8 @@ request_started_state_tc_event(struct isci_request *ireq,
resp_iu = &ireq->ssp.rsp;
datapres = resp_iu->datapres;
- if (datapres == 1 || datapres == 2) {
+ if (datapres == SAS_DATAPRES_RESPONSE_DATA ||
+ datapres == SAS_DATAPRES_SENSE_DATA) {
ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE;
ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID;
} else {
@@ -1730,8 +1731,8 @@ sci_io_request_frame_handler(struct isci_request *ireq,
resp_iu = &ireq->ssp.rsp;
- if (resp_iu->datapres == 0x01 ||
- resp_iu->datapres == 0x02) {
+ if (resp_iu->datapres == SAS_DATAPRES_RESPONSE_DATA ||
+ resp_iu->datapres == SAS_DATAPRES_SENSE_DATA) {
ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE;
ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR;
} else {
diff --git a/drivers/scsi/libsas/sas_task.c b/drivers/scsi/libsas/sas_task.c
index 2966ead1d421..e9d291007817 100644
--- a/drivers/scsi/libsas/sas_task.c
+++ b/drivers/scsi/libsas/sas_task.c
@@ -15,11 +15,14 @@ void sas_ssp_task_response(struct device *dev, struct sas_task *task,
tstat->resp = SAS_TASK_COMPLETE;
- if (iu->datapres == 0)
+ switch (iu->datapres) {
+ case SAS_DATAPRES_NO_DATA:
tstat->stat = iu->status;
- else if (iu->datapres == 1)
+ break;
+ case SAS_DATAPRES_RESPONSE_DATA:
tstat->stat = iu->resp_data[3];
- else if (iu->datapres == 2) {
+ break;
+ case SAS_DATAPRES_SENSE_DATA:
tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
tstat->buf_valid_size =
min_t(int, SAS_STATUS_BUF_SIZE,
@@ -29,10 +32,11 @@ void sas_ssp_task_response(struct device *dev, struct sas_task *task,
if (iu->status != SAM_STAT_CHECK_CONDITION)
dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n",
SAS_ADDR(task->dev->sas_addr), iu->status);
- }
- else
+ break;
+ default:
/* when datapres contains corrupt/unknown value... */
tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ }
}
EXPORT_SYMBOL_GPL(sas_ssp_task_response);
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index a8d1f3dd607a..b48ae26e29a9 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1638,7 +1638,7 @@ static void mvs_set_sense(u8 *buffer, int len, int d_sense,
static void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu,
u8 key, u8 asc, u8 asc_q)
{
- iu->datapres = 2;
+ iu->datapres = SAS_DATAPRES_SENSE_DATA;
iu->response_data_len = 0;
iu->sense_data_len = 17;
iu->status = 02;
diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index 64154c1fed02..332a463d08ef 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -191,6 +191,13 @@ enum sas_gpio_reg_type {
SAS_GPIO_REG_TX_GP = 4,
};
+/* Response frame DATAPRES field */
+enum {
+ SAS_DATAPRES_NO_DATA = 0,
+ SAS_DATAPRES_RESPONSE_DATA = 1,
+ SAS_DATAPRES_SENSE_DATA = 2,
+};
+
struct dev_to_host_fis {
u8 fis_type; /* 0x34 */
u8 flags;
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 03/18] scsi: libsas: Delete lldd_clear_aca callback
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
2022-02-22 12:50 ` [PATCH v3 01/18] scsi: libsas: Handle non-TMF codes in sas_scsi_find_task() John Garry
2022-02-22 12:50 ` [PATCH v3 02/18] scsi: libsas: Use enum for response frame DATAPRES field John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 04/18] scsi: libsas: Delete SAS_SG_ERR John Garry
` (16 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
This callback is never called, so remove support.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
Documentation/scsi/libsas.rst | 2 --
drivers/scsi/aic94xx/aic94xx.h | 1 -
drivers/scsi/aic94xx/aic94xx_init.c | 1 -
drivers/scsi/aic94xx/aic94xx_tmf.c | 9 ---------
drivers/scsi/hisi_sas/hisi_sas_main.c | 12 ------------
drivers/scsi/isci/init.c | 1 -
drivers/scsi/isci/task.c | 18 ------------------
drivers/scsi/isci/task.h | 4 ----
drivers/scsi/mvsas/mv_init.c | 1 -
drivers/scsi/mvsas/mv_sas.c | 11 -----------
drivers/scsi/mvsas/mv_sas.h | 1 -
drivers/scsi/pm8001/pm8001_init.c | 1 -
drivers/scsi/pm8001/pm8001_sas.c | 8 --------
drivers/scsi/pm8001/pm8001_sas.h | 1 -
include/scsi/libsas.h | 1 -
15 files changed, 72 deletions(-)
diff --git a/Documentation/scsi/libsas.rst b/Documentation/scsi/libsas.rst
index 6589dfefbc02..305a253d5c3b 100644
--- a/Documentation/scsi/libsas.rst
+++ b/Documentation/scsi/libsas.rst
@@ -207,7 +207,6 @@ Management Functions (TMFs) described in SAM::
/* Task Management Functions. Must be called from process context. */
int (*lldd_abort_task)(struct sas_task *);
int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
- int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
int (*lldd_I_T_nexus_reset)(struct domain_device *);
int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
@@ -262,7 +261,6 @@ can look like this (called last thing from probe())
my_ha->sas_ha.lldd_abort_task = my_abort_task;
my_ha->sas_ha.lldd_abort_task_set = my_abort_task_set;
- my_ha->sas_ha.lldd_clear_aca = my_clear_aca;
my_ha->sas_ha.lldd_clear_task_set = my_clear_task_set;
my_ha->sas_ha.lldd_I_T_nexus_reset= NULL; (2)
my_ha->sas_ha.lldd_lu_reset = my_lu_reset;
diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h
index 8f24180646c2..f595bc2ee45e 100644
--- a/drivers/scsi/aic94xx/aic94xx.h
+++ b/drivers/scsi/aic94xx/aic94xx.h
@@ -60,7 +60,6 @@ void asd_set_dmamode(struct domain_device *dev);
/* ---------- TMFs ---------- */
int asd_abort_task(struct sas_task *);
int asd_abort_task_set(struct domain_device *, u8 *lun);
-int asd_clear_aca(struct domain_device *, u8 *lun);
int asd_clear_task_set(struct domain_device *, u8 *lun);
int asd_lu_reset(struct domain_device *, u8 *lun);
int asd_I_T_nexus_reset(struct domain_device *dev);
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 7a78606598c4..954d0c5ae2e2 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -960,7 +960,6 @@ static struct sas_domain_function_template aic94xx_transport_functions = {
.lldd_abort_task = asd_abort_task,
.lldd_abort_task_set = asd_abort_task_set,
- .lldd_clear_aca = asd_clear_aca,
.lldd_clear_task_set = asd_clear_task_set,
.lldd_I_T_nexus_reset = asd_I_T_nexus_reset,
.lldd_lu_reset = asd_lu_reset,
diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c
index 2ba91eaaf0ee..27d32b8c2987 100644
--- a/drivers/scsi/aic94xx/aic94xx_tmf.c
+++ b/drivers/scsi/aic94xx/aic94xx_tmf.c
@@ -644,15 +644,6 @@ int asd_abort_task_set(struct domain_device *dev, u8 *lun)
return res;
}
-int asd_clear_aca(struct domain_device *dev, u8 *lun)
-{
- int res = asd_initiate_ssp_tmf(dev, lun, TMF_CLEAR_ACA, 0);
-
- if (res == TMF_RESP_FUNC_COMPLETE)
- asd_clear_nexus_I_T_L(dev, lun);
- return res;
-}
-
int asd_clear_task_set(struct domain_device *dev, u8 *lun)
{
int res = asd_initiate_ssp_tmf(dev, lun, TMF_CLEAR_TASK_SET, 0);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 1873707ca599..ad630694cc4f 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1793,17 +1793,6 @@ static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
return rc;
}
-static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun)
-{
- struct hisi_sas_tmf_task tmf_task;
- int rc;
-
- tmf_task.tmf = TMF_CLEAR_ACA;
- rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
-
- return rc;
-}
-
#define I_T_NEXUS_RESET_PHYUP_TIMEOUT (2 * HZ)
static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device)
@@ -2333,7 +2322,6 @@ static struct sas_domain_function_template hisi_sas_transport_ops = {
.lldd_control_phy = hisi_sas_control_phy,
.lldd_abort_task = hisi_sas_abort_task,
.lldd_abort_task_set = hisi_sas_abort_task_set,
- .lldd_clear_aca = hisi_sas_clear_aca,
.lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset,
.lldd_lu_reset = hisi_sas_lu_reset,
.lldd_query_task = hisi_sas_query_task,
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index aade707c5553..e294d5d961eb 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -193,7 +193,6 @@ static struct sas_domain_function_template isci_transport_ops = {
/* Task Management Functions. Must be called from process context. */
.lldd_abort_task = isci_task_abort_task,
.lldd_abort_task_set = isci_task_abort_task_set,
- .lldd_clear_aca = isci_task_clear_aca,
.lldd_clear_task_set = isci_task_clear_task_set,
.lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset,
.lldd_lu_reset = isci_task_lu_reset,
diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c
index c82d07978532..c514b20293b2 100644
--- a/drivers/scsi/isci/task.c
+++ b/drivers/scsi/isci/task.c
@@ -620,24 +620,6 @@ int isci_task_abort_task_set(
}
-/**
- * isci_task_clear_aca() - This function is one of the SAS Domain Template
- * functions. This is one of the Task Management functoins called by libsas.
- * @d_device: This parameter specifies the domain device associated with this
- * request.
- * @lun: This parameter specifies the lun associated with this request.
- *
- * status, zero indicates success.
- */
-int isci_task_clear_aca(
- struct domain_device *d_device,
- u8 *lun)
-{
- return TMF_RESP_FUNC_FAILED;
-}
-
-
-
/**
* isci_task_clear_task_set() - This function is one of the SAS Domain Template
* functions. This is one of the Task Management functoins called by libsas.
diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h
index cae168b8916f..f96633fa6939 100644
--- a/drivers/scsi/isci/task.h
+++ b/drivers/scsi/isci/task.h
@@ -140,10 +140,6 @@ int isci_task_abort_task_set(
struct domain_device *d_device,
u8 *lun);
-int isci_task_clear_aca(
- struct domain_device *d_device,
- u8 *lun);
-
int isci_task_clear_task_set(
struct domain_device *d_device,
u8 *lun);
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 44df7c03aab8..3fe0a9351cea 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -64,7 +64,6 @@ static struct sas_domain_function_template mvs_transport_ops = {
.lldd_abort_task = mvs_abort_task,
.lldd_abort_task_set = mvs_abort_task_set,
- .lldd_clear_aca = mvs_clear_aca,
.lldd_clear_task_set = mvs_clear_task_set,
.lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
.lldd_lu_reset = mvs_lu_reset,
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index b48ae26e29a9..e9182333e077 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1550,17 +1550,6 @@ int mvs_abort_task_set(struct domain_device *dev, u8 *lun)
return rc;
}
-int mvs_clear_aca(struct domain_device *dev, u8 *lun)
-{
- int rc = TMF_RESP_FUNC_FAILED;
- struct mvs_tmf_task tmf_task;
-
- tmf_task.tmf = TMF_CLEAR_ACA;
- rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
-
- return rc;
-}
-
int mvs_clear_task_set(struct domain_device *dev, u8 *lun)
{
int rc = TMF_RESP_FUNC_FAILED;
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index 8ff976c9967e..fa654c73beee 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -441,7 +441,6 @@ int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time);
int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags);
int mvs_abort_task(struct sas_task *task);
int mvs_abort_task_set(struct domain_device *dev, u8 *lun);
-int mvs_clear_aca(struct domain_device *dev, u8 *lun);
int mvs_clear_task_set(struct domain_device *dev, u8 * lun);
void mvs_port_formed(struct asd_sas_phy *sas_phy);
void mvs_port_deformed(struct asd_sas_phy *sas_phy);
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index d8a2121cb8d9..b8cf1bae4040 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -123,7 +123,6 @@ static struct sas_domain_function_template pm8001_transport_ops = {
.lldd_abort_task = pm8001_abort_task,
.lldd_abort_task_set = pm8001_abort_task_set,
- .lldd_clear_aca = pm8001_clear_aca,
.lldd_clear_task_set = pm8001_clear_task_set,
.lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset,
.lldd_lu_reset = pm8001_lu_reset,
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 8c12fbb9c476..bd3513e1882e 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1358,14 +1358,6 @@ int pm8001_abort_task_set(struct domain_device *dev, u8 *lun)
return pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
}
-int pm8001_clear_aca(struct domain_device *dev, u8 *lun)
-{
- struct pm8001_tmf_task tmf_task;
-
- tmf_task.tmf = TMF_CLEAR_ACA;
- return pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
-}
-
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun)
{
struct pm8001_tmf_task tmf_task;
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index a17da1cebce1..3ea53a0d0cc1 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -649,7 +649,6 @@ int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time);
int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags);
int pm8001_abort_task(struct sas_task *task);
int pm8001_abort_task_set(struct domain_device *dev, u8 *lun);
-int pm8001_clear_aca(struct domain_device *dev, u8 *lun);
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun);
int pm8001_dev_found(struct domain_device *dev);
void pm8001_dev_gone(struct domain_device *dev);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index fad328d3a551..8026c1bb57ba 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -636,7 +636,6 @@ struct sas_domain_function_template {
/* Task Management Functions. Must be called from process context. */
int (*lldd_abort_task)(struct sas_task *);
int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
- int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
int (*lldd_I_T_nexus_reset)(struct domain_device *);
int (*lldd_ata_check_ready)(struct domain_device *);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 04/18] scsi: libsas: Delete SAS_SG_ERR
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (2 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 03/18] scsi: libsas: Delete lldd_clear_aca callback John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 05/18] scsi: hisi_sas: Delete unused I_T_NEXUS_RESET_PHYUP_TIMEOUT John Garry
` (15 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
No LLDD sets exec status as SAS_SG_ERR, so remove support.
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/libsas/sas_ata.c | 2 --
drivers/scsi/libsas/sas_scsi_host.c | 3 ---
include/scsi/libsas.h | 1 -
3 files changed, 6 deletions(-)
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index e0030a093994..71b42fe95b6f 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -52,8 +52,6 @@ static enum ata_completion_errors sas_to_ata_err(struct task_status_struct *ts)
case SAS_DATA_OVERRUN:
case SAS_QUEUE_FULL:
case SAS_DEVICE_UNKNOWN:
- case SAS_SG_ERR:
- return AC_ERR_INVALID;
case SAS_OPEN_TO:
case SAS_OPEN_REJECT:
pr_warn("%s: Saw error %d. What to do?\n",
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 19cb954afd80..387083a16a79 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -67,9 +67,6 @@ static void sas_end_task(struct scsi_cmnd *sc, struct sas_task *task)
case SAS_DEVICE_UNKNOWN:
hs = DID_BAD_TARGET;
break;
- case SAS_SG_ERR:
- hs = DID_PARITY;
- break;
case SAS_OPEN_REJECT:
if (ts->open_rej_reason == SAS_OREJ_RSVD_RETRY)
hs = DID_SOFT_ERROR; /* retry */
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 8026c1bb57ba..cd2b2b67bf93 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -492,7 +492,6 @@ enum exec_status {
SAS_INTERRUPTED,
SAS_QUEUE_FULL,
SAS_DEVICE_UNKNOWN,
- SAS_SG_ERR,
SAS_OPEN_REJECT,
SAS_OPEN_TO,
SAS_PROTO_RESPONSE,
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 05/18] scsi: hisi_sas: Delete unused I_T_NEXUS_RESET_PHYUP_TIMEOUT
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (3 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 04/18] scsi: libsas: Delete SAS_SG_ERR John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 06/18] scsi: libsas: Move SMP task handlers to core John Garry
` (14 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
There is no user, so delete it.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index ad630694cc4f..5bacf849c36a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1793,8 +1793,6 @@ static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
return rc;
}
-#define I_T_NEXUS_RESET_PHYUP_TIMEOUT (2 * HZ)
-
static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device)
{
struct sas_phy *local_phy = sas_get_local_phy(device);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 06/18] scsi: libsas: Move SMP task handlers to core
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (4 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 05/18] scsi: hisi_sas: Delete unused I_T_NEXUS_RESET_PHYUP_TIMEOUT John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 07/18] scsi: libsas: Add struct sas_tmf_task John Garry
` (13 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Move the SMP task handlers to the core host code as they will be re-used
for executing internal abort and TMF tasks.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/libsas/sas_expander.c | 24 ++----------------------
drivers/scsi/libsas/sas_internal.h | 3 +++
drivers/scsi/libsas/sas_scsi_host.c | 24 ++++++++++++++++++++++++
3 files changed, 29 insertions(+), 22 deletions(-)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 6abce9dfc17b..260e735d06fa 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -28,26 +28,6 @@ static int sas_disable_routing(struct domain_device *dev, u8 *sas_addr);
/* ---------- SMP task management ---------- */
-static void smp_task_timedout(struct timer_list *t)
-{
- struct sas_task_slow *slow = from_timer(slow, t, timer);
- struct sas_task *task = slow->task;
- unsigned long flags;
-
- spin_lock_irqsave(&task->task_state_lock, flags);
- if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
- task->task_state_flags |= SAS_TASK_STATE_ABORTED;
- complete(&task->slow_task->completion);
- }
- spin_unlock_irqrestore(&task->task_state_lock, flags);
-}
-
-static void smp_task_done(struct sas_task *task)
-{
- del_timer(&task->slow_task->timer);
- complete(&task->slow_task->completion);
-}
-
/* Give it some long enough timeout. In seconds. */
#define SMP_TIMEOUT 10
@@ -78,9 +58,9 @@ static int smp_execute_task_sg(struct domain_device *dev,
task->smp_task.smp_req = *req;
task->smp_task.smp_resp = *resp;
- task->task_done = smp_task_done;
+ task->task_done = sas_task_internal_done;
- task->slow_task->timer.function = smp_task_timedout;
+ task->slow_task->timer.function = sas_task_internal_timedout;
task->slow_task->timer.expires = jiffies + SMP_TIMEOUT*HZ;
add_timer(&task->slow_task->timer);
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index acd515c01861..cd6aa723c3e1 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -95,6 +95,9 @@ void sas_destruct_devices(struct asd_sas_port *port);
extern const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS];
extern const work_func_t sas_port_event_fns[PORT_NUM_EVENTS];
+void sas_task_internal_done(struct sas_task *task);
+void sas_task_internal_timedout(struct timer_list *t);
+
#ifdef CONFIG_SCSI_SAS_HOST_SMP
extern void sas_smp_host_handler(struct bsg_job *job, struct Scsi_Host *shost);
#else
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 387083a16a79..40dcb4e8a747 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -893,6 +893,30 @@ int sas_bios_param(struct scsi_device *scsi_dev,
}
EXPORT_SYMBOL_GPL(sas_bios_param);
+void sas_task_internal_done(struct sas_task *task)
+{
+ del_timer(&task->slow_task->timer);
+ complete(&task->slow_task->completion);
+}
+
+void sas_task_internal_timedout(struct timer_list *t)
+{
+ struct sas_task_slow *slow = from_timer(slow, t, timer);
+ struct sas_task *task = slow->task;
+ bool is_completed = true;
+ unsigned long flags;
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+ task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+ is_completed = false;
+ }
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ if (!is_completed)
+ complete(&task->slow_task->completion);
+}
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 07/18] scsi: libsas: Add struct sas_tmf_task
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (5 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 06/18] scsi: libsas: Move SMP task handlers to core John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 08/18] scsi: libsas: Add sas_task.tmf John Garry
` (12 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Some of the LLDDs which use libsas have their own definition of a struct
to hold TMF info, so add a common struct for libsas.
Also add an interim force phy id field for hisi_sas driver, which will be
removed once the STP "TMF" code is factored out.
Even though some LLDDs (pm8001) use a u32 for the tag, u16 will be adequate,
as that named driver only uses tags in range [0, 1024).
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas.h | 9 +--------
drivers/scsi/hisi_sas/hisi_sas_main.c | 22 +++++++++++-----------
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 4 ++--
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 +-
drivers/scsi/mvsas/mv_defs.h | 5 -----
drivers/scsi/mvsas/mv_sas.c | 20 ++++++++++----------
drivers/scsi/pm8001/pm8001_hwi.c | 4 ++--
drivers/scsi/pm8001/pm8001_sas.c | 18 +++++++++---------
drivers/scsi/pm8001/pm8001_sas.h | 10 +++-------
include/scsi/libsas.h | 9 +++++++++
11 files changed, 49 insertions(+), 56 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 15a58c955516..fe0c15bbfca9 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -234,13 +234,6 @@ struct hisi_sas_device {
spinlock_t lock; /* For protecting slots */
};
-struct hisi_sas_tmf_task {
- int force_phy;
- int phy_id;
- u8 tmf;
- u16 tag_of_task_to_be_managed;
-};
-
struct hisi_sas_slot {
struct list_head entry;
struct list_head delivery;
@@ -259,7 +252,7 @@ struct hisi_sas_slot {
dma_addr_t cmd_hdr_dma;
struct timer_list internal_abort_timer;
bool is_internal;
- struct hisi_sas_tmf_task *tmf;
+ struct sas_tmf_task *tmf;
/* Do not reorder/change members after here */
void *buf;
dma_addr_t buf_dma;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 5bacf849c36a..88e641143b82 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -11,7 +11,7 @@
((!dev) || (dev->dev_type == SAS_PHY_UNUSED))
static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
- u8 *lun, struct hisi_sas_tmf_task *tmf);
+ u8 *lun, struct sas_tmf_task *tmf);
static int
hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
struct domain_device *device,
@@ -464,7 +464,7 @@ void hisi_sas_task_deliver(struct hisi_hba *hisi_hba,
}
static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
- struct hisi_sas_tmf_task *tmf)
+ struct sas_tmf_task *tmf)
{
int n_elem = 0, n_elem_dif = 0, n_elem_req = 0;
struct domain_device *device = task->dev;
@@ -672,7 +672,7 @@ static int hisi_sas_init_device(struct domain_device *device)
{
int rc = TMF_RESP_FUNC_COMPLETE;
struct scsi_lun lun;
- struct hisi_sas_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
int retry = HISI_SAS_DISK_RECOVER_CNT;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
@@ -1236,7 +1236,7 @@ static void hisi_sas_tmf_timedout(struct timer_list *t)
#define INTERNAL_ABORT_TIMEOUT (6 * HZ)
static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
void *parameter, u32 para_len,
- struct hisi_sas_tmf_task *tmf)
+ struct sas_tmf_task *tmf)
{
struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
@@ -1371,7 +1371,7 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
int s = sizeof(struct host_to_dev_fis);
- struct hisi_sas_tmf_task tmf = {};
+ struct sas_tmf_task tmf = {};
ata_for_each_link(link, ap, EDGE) {
int pmp = sata_srst_pmp(link);
@@ -1405,7 +1405,7 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)
}
static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
- u8 *lun, struct hisi_sas_tmf_task *tmf)
+ u8 *lun, struct sas_tmf_task *tmf)
{
struct sas_ssp_task ssp_task;
@@ -1512,7 +1512,7 @@ static void hisi_sas_send_ata_reset_each_phy(struct hisi_hba *hisi_hba,
struct asd_sas_port *sas_port,
struct domain_device *device)
{
- struct hisi_sas_tmf_task tmf_task = { .force_phy = 1 };
+ struct sas_tmf_task tmf_task = { .force_phy = 1 };
struct ata_port *ap = device->sata_dev.ap;
struct device *dev = hisi_hba->dev;
int s = sizeof(struct host_to_dev_fis);
@@ -1664,7 +1664,7 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
static int hisi_sas_abort_task(struct sas_task *task)
{
struct scsi_lun lun;
- struct hisi_sas_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
struct domain_device *device = task->dev;
struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_hba *hisi_hba;
@@ -1773,7 +1773,7 @@ static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
{
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
- struct hisi_sas_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
int rc;
rc = hisi_sas_internal_task_abort(hisi_hba, device,
@@ -1924,7 +1924,7 @@ static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
hisi_sas_release_task(hisi_hba, device);
sas_put_local_phy(phy);
} else {
- struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET };
+ struct sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET };
rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
if (rc == TMF_RESP_FUNC_COMPLETE)
@@ -1982,7 +1982,7 @@ static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
static int hisi_sas_query_task(struct sas_task *task)
{
struct scsi_lun lun;
- struct hisi_sas_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 6914e992a02e..763888144aef 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -958,7 +958,7 @@ static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_port *port = slot->port;
struct sas_ssp_task *ssp_task = &task->ssp_task;
struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
- struct hisi_sas_tmf_task *tmf = slot->tmf;
+ struct sas_tmf_task *tmf = slot->tmf;
int has_data = 0, priority = !!tmf;
u8 *buf_cmd, fburst = 0;
u32 dw1, dw2;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index eaaf9e8b4ca4..5bab51dc21b3 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -1742,7 +1742,7 @@ static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_port *port = slot->port;
struct sas_ssp_task *ssp_task = &task->ssp_task;
struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
- struct hisi_sas_tmf_task *tmf = slot->tmf;
+ struct sas_tmf_task *tmf = slot->tmf;
int has_data = 0, priority = !!tmf;
u8 *buf_cmd;
u32 dw1 = 0, dw2 = 0;
@@ -2491,7 +2491,7 @@ static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
struct asd_sas_port *sas_port = device->port;
struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
- struct hisi_sas_tmf_task *tmf = slot->tmf;
+ struct sas_tmf_task *tmf = slot->tmf;
u8 *buf_cmd;
int has_data = 0, hdr_tag = 0;
u32 dw0, dw1 = 0, dw2 = 0;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index e472068cc256..a57f247481ed 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -1219,7 +1219,7 @@ static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_port *port = slot->port;
struct sas_ssp_task *ssp_task = &task->ssp_task;
struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
- struct hisi_sas_tmf_task *tmf = slot->tmf;
+ struct sas_tmf_task *tmf = slot->tmf;
int has_data = 0, priority = !!tmf;
unsigned char prot_op;
u8 *buf_cmd;
diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h
index 199ab49aa047..7123a2efbf58 100644
--- a/drivers/scsi/mvsas/mv_defs.h
+++ b/drivers/scsi/mvsas/mv_defs.h
@@ -486,9 +486,4 @@ enum datapres_field {
SENSE_DATA = 2,
};
-/* define task management IU */
-struct mvs_tmf_task{
- u8 tmf;
- u16 tag_of_task_to_be_managed;
-};
#endif
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index e9182333e077..53509996db9f 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -556,7 +556,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi,
static int mvs_task_prep_ssp(struct mvs_info *mvi,
struct mvs_task_exec_info *tei, int is_tmf,
- struct mvs_tmf_task *tmf)
+ struct sas_tmf_task *tmf)
{
struct sas_task *task = tei->task;
struct mvs_cmd_hdr *hdr = tei->hdr;
@@ -696,7 +696,7 @@ static int mvs_task_prep_ssp(struct mvs_info *mvi,
#define DEV_IS_GONE(mvi_dev) ((!mvi_dev || (mvi_dev->dev_type == SAS_PHY_UNUSED)))
static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf,
- struct mvs_tmf_task *tmf, int *pass)
+ struct sas_tmf_task *tmf, int *pass)
{
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = dev->lldd_dev;
@@ -839,7 +839,7 @@ static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf
static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags,
struct completion *completion, int is_tmf,
- struct mvs_tmf_task *tmf)
+ struct sas_tmf_task *tmf)
{
struct mvs_info *mvi = NULL;
u32 rc = 0;
@@ -1277,7 +1277,7 @@ static void mvs_tmf_timedout(struct timer_list *t)
#define MVS_TASK_TIMEOUT 20
static int mvs_exec_internal_tmf_task(struct domain_device *dev,
- void *parameter, u32 para_len, struct mvs_tmf_task *tmf)
+ void *parameter, u32 para_len, struct sas_tmf_task *tmf)
{
int res, retry;
struct sas_task *task = NULL;
@@ -1352,7 +1352,7 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev,
}
static int mvs_debug_issue_ssp_tmf(struct domain_device *dev,
- u8 *lun, struct mvs_tmf_task *tmf)
+ u8 *lun, struct sas_tmf_task *tmf)
{
struct sas_ssp_task ssp_task;
if (!(dev->tproto & SAS_PROTOCOL_SSP))
@@ -1384,7 +1384,7 @@ int mvs_lu_reset(struct domain_device *dev, u8 *lun)
{
unsigned long flags;
int rc = TMF_RESP_FUNC_FAILED;
- struct mvs_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
struct mvs_device * mvi_dev = dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
@@ -1428,7 +1428,7 @@ int mvs_query_task(struct sas_task *task)
{
u32 tag;
struct scsi_lun lun;
- struct mvs_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
@@ -1465,7 +1465,7 @@ int mvs_query_task(struct sas_task *task)
int mvs_abort_task(struct sas_task *task)
{
struct scsi_lun lun;
- struct mvs_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi;
@@ -1542,7 +1542,7 @@ int mvs_abort_task(struct sas_task *task)
int mvs_abort_task_set(struct domain_device *dev, u8 *lun)
{
int rc;
- struct mvs_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
tmf_task.tmf = TMF_ABORT_TASK_SET;
rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
@@ -1553,7 +1553,7 @@ int mvs_abort_task_set(struct domain_device *dev, u8 *lun)
int mvs_clear_task_set(struct domain_device *dev, u8 *lun)
{
int rc = TMF_RESP_FUNC_FAILED;
- struct mvs_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
tmf_task.tmf = TMF_CLEAR_TASK_SET;
rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 4683fee87b84..575c6ecfdce3 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -4602,7 +4602,7 @@ int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
* @tmf: task management function.
*/
int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
- struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
+ struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf)
{
struct sas_task *task = ccb->task;
struct domain_device *dev = task->dev;
@@ -4614,7 +4614,7 @@ int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
memset(&sspTMCmd, 0, sizeof(sspTMCmd));
sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
- sspTMCmd.relate_tag = cpu_to_le32(tmf->tag_of_task_to_be_managed);
+ sspTMCmd.relate_tag = cpu_to_le32((u32)tmf->tag_of_task_to_be_managed);
sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index bd3513e1882e..a93b7f0bb358 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -336,7 +336,7 @@ static int pm8001_task_prep_ata(struct pm8001_hba_info *pm8001_ha,
* @tmf: the task management IU
*/
static int pm8001_task_prep_ssp_tm(struct pm8001_hba_info *pm8001_ha,
- struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
+ struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf)
{
return PM8001_CHIP_DISP->ssp_tm_req(pm8001_ha, ccb, tmf);
}
@@ -379,7 +379,7 @@ static int sas_find_local_port_id(struct domain_device *dev)
* @tmf: the task management IU
*/
static int pm8001_task_exec(struct sas_task *task,
- gfp_t gfp_flags, int is_tmf, struct pm8001_tmf_task *tmf)
+ gfp_t gfp_flags, int is_tmf, struct sas_tmf_task *tmf)
{
struct domain_device *dev = task->dev;
struct pm8001_hba_info *pm8001_ha;
@@ -728,7 +728,7 @@ static void pm8001_tmf_timedout(struct timer_list *t)
* this function, note it is also with the task execute interface.
*/
static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
- void *parameter, u32 para_len, struct pm8001_tmf_task *tmf)
+ void *parameter, u32 para_len, struct sas_tmf_task *tmf)
{
int res, retry;
struct sas_task *task = NULL;
@@ -919,7 +919,7 @@ void pm8001_dev_gone(struct domain_device *dev)
}
static int pm8001_issue_ssp_tmf(struct domain_device *dev,
- u8 *lun, struct pm8001_tmf_task *tmf)
+ u8 *lun, struct sas_tmf_task *tmf)
{
struct sas_ssp_task ssp_task;
if (!(dev->tproto & SAS_PROTOCOL_SSP))
@@ -1120,7 +1120,7 @@ int pm8001_I_T_nexus_event_handler(struct domain_device *dev)
int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
{
int rc = TMF_RESP_FUNC_FAILED;
- struct pm8001_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
struct pm8001_device *pm8001_dev = dev->lldd_dev;
struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
DECLARE_COMPLETION_ONSTACK(completion_setstate);
@@ -1149,7 +1149,7 @@ int pm8001_query_task(struct sas_task *task)
{
u32 tag = 0xdeadbeef;
struct scsi_lun lun;
- struct pm8001_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED;
if (unlikely(!task || !task->lldd_task || !task->dev))
return rc;
@@ -1198,7 +1198,7 @@ int pm8001_abort_task(struct sas_task *task)
struct pm8001_hba_info *pm8001_ha;
struct scsi_lun lun;
struct pm8001_device *pm8001_dev;
- struct pm8001_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED, ret;
u32 phy_id, port_id;
struct sas_task_slow slow_task;
@@ -1352,7 +1352,7 @@ int pm8001_abort_task(struct sas_task *task)
int pm8001_abort_task_set(struct domain_device *dev, u8 *lun)
{
- struct pm8001_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
tmf_task.tmf = TMF_ABORT_TASK_SET;
return pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
@@ -1360,7 +1360,7 @@ int pm8001_abort_task_set(struct domain_device *dev, u8 *lun)
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun)
{
- struct pm8001_tmf_task tmf_task;
+ struct sas_tmf_task tmf_task;
struct pm8001_device *pm8001_dev = dev->lldd_dev;
struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 3ea53a0d0cc1..0b1086042ca6 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -99,11 +99,7 @@ extern const struct pm8001_dispatch pm8001_80xx_dispatch;
struct pm8001_hba_info;
struct pm8001_ccb_info;
struct pm8001_device;
-/* define task management IU */
-struct pm8001_tmf_task {
- u8 tmf;
- u32 tag_of_task_to_be_managed;
-};
+
struct pm8001_ioctl_payload {
u32 signature;
u16 major_function;
@@ -203,7 +199,7 @@ struct pm8001_dispatch {
struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag,
u32 cmd_tag);
int (*ssp_tm_req)(struct pm8001_hba_info *pm8001_ha,
- struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf);
+ struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf);
int (*get_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
int (*set_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
int (*fw_flash_update_req)(struct pm8001_hba_info *pm8001_ha,
@@ -687,7 +683,7 @@ int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha, void *payload);
int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha, void *payload);
int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
struct pm8001_ccb_info *ccb,
- struct pm8001_tmf_task *tmf);
+ struct sas_tmf_task *tmf);
int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
struct pm8001_device *pm8001_dev,
u8 flag, u32 task_tag, u32 cmd_tag);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index cd2b2b67bf93..7a55853fad7b 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -576,6 +576,15 @@ struct sas_ssp_task {
struct scsi_cmnd *cmd;
};
+struct sas_tmf_task {
+ u8 tmf;
+ u16 tag_of_task_to_be_managed;
+
+ /* Temp */
+ int force_phy;
+ int phy_id;
+};
+
struct sas_task {
struct domain_device *dev;
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 08/18] scsi: libsas: Add sas_task.tmf
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (6 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 07/18] scsi: libsas: Add struct sas_tmf_task John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 09/18] scsi: libsas: Add sas_execute_tmf() John Garry
` (11 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a pointer to a sas_tmf_task to the sas_task struct, as this will be
used when the common LLDD TMF code is factored out.
Also set it for the LLDDs to store per-sas_task TMF info.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 16 ++++++---------
drivers/scsi/mvsas/mv_sas.c | 15 ++++++--------
drivers/scsi/pm8001/pm8001_sas.c | 28 ++++++++++-----------------
include/scsi/libsas.h | 1 +
4 files changed, 23 insertions(+), 37 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 88e641143b82..bd40323f7053 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -463,8 +463,7 @@ void hisi_sas_task_deliver(struct hisi_hba *hisi_hba,
spin_unlock(&dq->lock);
}
-static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
- struct sas_tmf_task *tmf)
+static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
{
int n_elem = 0, n_elem_dif = 0, n_elem_req = 0;
struct domain_device *device = task->dev;
@@ -575,8 +574,8 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
slot->task = task;
slot->port = port;
- slot->tmf = tmf;
- slot->is_internal = tmf;
+ slot->tmf = task->tmf;
+ slot->is_internal = task->tmf;
/* protect task_prep and start_delivery sequence */
hisi_sas_task_deliver(hisi_hba, slot, dq, sas_dev, NULL);
@@ -1106,11 +1105,6 @@ static void hisi_sas_dev_gone(struct domain_device *device)
up(&hisi_hba->sem);
}
-static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
-{
- return hisi_sas_task_exec(task, gfp_flags, NULL);
-}
-
static int hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no,
struct sas_phy_linkrates *r)
{
@@ -1264,7 +1258,9 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
task->slow_task->timer.expires = jiffies + TASK_TIMEOUT;
add_timer(&task->slow_task->timer);
- res = hisi_sas_task_exec(task, GFP_KERNEL, tmf);
+ task->tmf = tmf;
+
+ res = hisi_sas_queue_command(task, GFP_KERNEL);
if (res) {
del_timer_sync(&task->slow_task->timer);
dev_err(dev, "abort tmf: executing internal task failed: %d\n",
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 53509996db9f..47fcd8de9ece 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -837,14 +837,14 @@ static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf
return rc;
}
-static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags,
- struct completion *completion, int is_tmf,
- struct sas_tmf_task *tmf)
+int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags)
{
struct mvs_info *mvi = NULL;
u32 rc = 0;
u32 pass = 0;
unsigned long flags = 0;
+ struct sas_tmf_task *tmf = task->tmf;
+ int is_tmf = !!task->tmf;
mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info;
@@ -861,11 +861,6 @@ static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags,
return rc;
}
-int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags)
-{
- return mvs_task_exec(task, gfp_flags, NULL, 0, NULL);
-}
-
static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc)
{
u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
@@ -1297,7 +1292,9 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev,
task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ;
add_timer(&task->slow_task->timer);
- res = mvs_task_exec(task, GFP_KERNEL, NULL, 1, tmf);
+ task->tmf = tmf;
+
+ res = mvs_queue_command(task, GFP_KERNEL);
if (res) {
del_timer(&task->slow_task->timer);
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index a93b7f0bb358..a53e4b54154f 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -371,15 +371,14 @@ static int sas_find_local_port_id(struct domain_device *dev)
#define DEV_IS_GONE(pm8001_dev) \
((!pm8001_dev || (pm8001_dev->dev_type == SAS_PHY_UNUSED)))
+
/**
- * pm8001_task_exec - queue the task(ssp, smp && ata) to the hardware.
+ * pm8001_queue_command - register for upper layer used, all IO commands sent
+ * to HBA are from this interface.
* @task: the task to be execute.
- * @gfp_flags: gfp_flags.
- * @is_tmf: if it is task management task.
- * @tmf: the task management IU
+ * @gfp_flags: gfp_flags
*/
-static int pm8001_task_exec(struct sas_task *task,
- gfp_t gfp_flags, int is_tmf, struct sas_tmf_task *tmf)
+int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
{
struct domain_device *dev = task->dev;
struct pm8001_hba_info *pm8001_ha;
@@ -390,6 +389,8 @@ static int pm8001_task_exec(struct sas_task *task,
u32 tag = 0xdeadbeef, rc = 0, n_elem = 0;
unsigned long flags = 0;
enum sas_protocol task_proto = t->task_proto;
+ struct sas_tmf_task *tmf = task->tmf;
+ int is_tmf = !!task->tmf;
if (!dev->port) {
struct task_status_struct *tsm = &t->task_status;
@@ -504,17 +505,6 @@ static int pm8001_task_exec(struct sas_task *task,
return rc;
}
-/**
- * pm8001_queue_command - register for upper layer used, all IO commands sent
- * to HBA are from this interface.
- * @task: the task to be execute.
- * @gfp_flags: gfp_flags
- */
-int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags)
-{
- return pm8001_task_exec(task, gfp_flags, 0, NULL);
-}
-
/**
* pm8001_ccb_task_free - free the sg for ssp and smp command, free the ccb.
* @pm8001_ha: our hba card information
@@ -749,7 +739,9 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ;
add_timer(&task->slow_task->timer);
- res = pm8001_task_exec(task, GFP_KERNEL, 1, tmf);
+ task->tmf = tmf;
+
+ res = pm8001_queue_command(task, GFP_KERNEL);
if (res) {
del_timer(&task->slow_task->timer);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 7a55853fad7b..9c181ebccfee 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -610,6 +610,7 @@ struct sas_task {
void *lldd_task; /* for use by LLDDs */
void *uldd_task;
struct sas_task_slow *slow_task;
+ struct sas_tmf_task *tmf;
};
struct sas_task_slow {
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 09/18] scsi: libsas: Add sas_execute_tmf()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (7 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 08/18] scsi: libsas: Add sas_task.tmf John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 10/18] scsi: libsas: Add sas_execute_ssp_tmf() John Garry
` (10 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Drivers using libsas have to issue their own TMFs, and the code to do this
is duplicated between drivers.
Add a common function to handle TMFs. This will be also used for sending
ATA commands, but use name "tmf" as the purpose is similar between SCSI
and ATA in the usage.
The force_phy_id argument will be used for a hisi_sas HW bug workaround.
We check the sas task status stat field against TMF codes, as according to
the SAS v1.1 spec 9.2.2.5.3, if response_data is in datapres, then the
response code should be a TMF code - see table 128.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/libsas/sas_internal.h | 3 +
drivers/scsi/libsas/sas_scsi_host.c | 105 ++++++++++++++++++++++++++++
2 files changed, 108 insertions(+)
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index cd6aa723c3e1..b60f0bf612cf 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -97,6 +97,9 @@ extern const work_func_t sas_port_event_fns[PORT_NUM_EVENTS];
void sas_task_internal_done(struct sas_task *task);
void sas_task_internal_timedout(struct timer_list *t);
+int sas_execute_tmf(struct domain_device *device, void *parameter,
+ int para_len, int force_phy_id,
+ struct sas_tmf_task *tmf);
#ifdef CONFIG_SCSI_SAS_HOST_SMP
extern void sas_smp_host_handler(struct bsg_job *job, struct Scsi_Host *shost);
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 40dcb4e8a747..d04002180be3 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -917,6 +917,111 @@ void sas_task_internal_timedout(struct timer_list *t)
complete(&task->slow_task->completion);
}
+#define TASK_TIMEOUT (20 * HZ)
+#define TASK_RETRY 3
+
+int sas_execute_tmf(struct domain_device *device, void *parameter,
+ int para_len, int force_phy_id,
+ struct sas_tmf_task *tmf)
+{
+ struct sas_task *task;
+ struct sas_internal *i =
+ to_sas_internal(device->port->ha->core.shost->transportt);
+ int res, retry;
+
+ for (retry = 0; retry < TASK_RETRY; retry++) {
+ task = sas_alloc_slow_task(GFP_KERNEL);
+ if (!task)
+ return -ENOMEM;
+
+ task->dev = device;
+ task->task_proto = device->tproto;
+
+ 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;
+ }
+
+ wait_for_completion(&task->slow_task->completion);
+
+ res = TMF_RESP_FUNC_FAILED;
+
+ if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
+ if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+ pr_err("TMF task timeout for %016llx and not done\n",
+ SAS_ADDR(device->sas_addr));
+ break;
+ }
+ pr_warn("TMF task timeout for %016llx and done\n",
+ SAS_ADDR(device->sas_addr));
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_COMPLETE) {
+ res = TMF_RESP_FUNC_COMPLETE;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_SUCC) {
+ res = TMF_RESP_FUNC_SUCC;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_DATA_UNDERRUN) {
+ /* no error, but return the number of bytes of
+ * underrun
+ */
+ pr_warn("TMF task to dev %016llx resp: 0x%x sts 0x%x underrun\n",
+ SAS_ADDR(device->sas_addr),
+ task->task_status.resp,
+ task->task_status.stat);
+ res = task->task_status.residual;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_DATA_OVERRUN) {
+ pr_warn("TMF task blocked task error %016llx\n",
+ SAS_ADDR(device->sas_addr));
+ res = -EMSGSIZE;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_OPEN_REJECT) {
+ pr_warn("TMF task open reject failed %016llx\n",
+ SAS_ADDR(device->sas_addr));
+ res = -EIO;
+ } else {
+ pr_warn("TMF task to dev %016llx resp: 0x%x status 0x%x\n",
+ SAS_ADDR(device->sas_addr),
+ task->task_status.resp,
+ task->task_status.stat);
+ }
+ sas_free_task(task);
+ task = NULL;
+ }
+
+ if (retry == TASK_RETRY)
+ pr_warn("executing TMF for %016llx failed after %d attempts!\n",
+ SAS_ADDR(device->sas_addr), TASK_RETRY);
+ sas_free_task(task);
+
+ return res;
+}
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 10/18] scsi: libsas: Add sas_execute_ssp_tmf()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (8 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 09/18] scsi: libsas: Add sas_execute_tmf() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 11/18] scsi: libsas: Add TMF handler exec complete callback John Garry
` (9 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a function to issue an SSP TMF.
Add a temp prototype to keep make W=1 happy.
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/libsas/sas_scsi_host.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index d04002180be3..af2dd95a2b28 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -937,6 +937,9 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
task->dev = device;
task->task_proto = device->tproto;
+ if (!dev_is_sata(device))
+ memcpy(&task->ssp_task, parameter, para_len);
+
task->task_done = sas_task_internal_done;
task->tmf = tmf;
@@ -1022,6 +1025,21 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
return res;
}
+int sas_execute_ssp_tmf(struct domain_device *device, u8 *lun,
+ struct sas_tmf_task *tmf);
+int sas_execute_ssp_tmf(struct domain_device *device, u8 *lun,
+ struct sas_tmf_task *tmf)
+{
+ struct sas_ssp_task ssp_task;
+
+ if (!(device->tproto & SAS_PROTOCOL_SSP))
+ return TMF_RESP_FUNC_ESUPP;
+
+ memcpy(ssp_task.LUN, lun, 8);
+
+ return sas_execute_tmf(device, &ssp_task, sizeof(ssp_task), -1, tmf);
+}
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 11/18] scsi: libsas: Add TMF handler exec complete callback
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (9 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 10/18] scsi: libsas: Add sas_execute_ssp_tmf() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 12/18] scsi: libsas: Add TMF handler aborted callback John Garry
` (8 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
The pm8001 TMF handler has some special processing when the TMF completes,
so add a callback and fill it in for the pm8001 driver.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/libsas/sas_scsi_host.c | 3 +++
drivers/scsi/pm8001/pm8001_init.c | 1 +
drivers/scsi/pm8001/pm8001_sas.c | 14 ++++++++++++++
drivers/scsi/pm8001/pm8001_sas.h | 1 +
include/scsi/libsas.h | 3 +++
5 files changed, 22 insertions(+)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index af2dd95a2b28..0f599744738d 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -957,6 +957,9 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
wait_for_completion(&task->slow_task->completion);
+ if (i->dft->lldd_tmf_exec_complete)
+ i->dft->lldd_tmf_exec_complete(device);
+
res = TMF_RESP_FUNC_FAILED;
if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index b8cf1bae4040..8eef8f4de42f 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -128,6 +128,7 @@ static struct sas_domain_function_template pm8001_transport_ops = {
.lldd_lu_reset = pm8001_lu_reset,
.lldd_query_task = pm8001_query_task,
.lldd_port_formed = pm8001_port_formed,
+ .lldd_tmf_exec_complete = pm8001_setds_completion,
};
/**
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index a53e4b54154f..69da7246ea20 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1376,3 +1376,17 @@ void pm8001_port_formed(struct asd_sas_phy *sas_phy)
}
sas_port->lldd_port = port;
}
+
+void pm8001_setds_completion(struct domain_device *dev)
+{
+ struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
+ struct pm8001_device *pm8001_dev = dev->lldd_dev;
+ DECLARE_COMPLETION_ONSTACK(completion_setstate);
+
+ if (pm8001_ha->chip_id != chip_8001) {
+ pm8001_dev->setds_completion = &completion_setstate;
+ PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
+ pm8001_dev, DS_OPERATIONAL);
+ wait_for_completion(&completion_setstate);
+ }
+}
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 0b1086042ca6..c19c9c80206c 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -742,6 +742,7 @@ pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
smp_mb(); /*in order to force CPU ordering*/
task->task_done(task);
}
+void pm8001_setds_completion(struct domain_device *dev);
#endif
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 9c181ebccfee..dd6551e809a0 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -652,6 +652,9 @@ struct sas_domain_function_template {
int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
int (*lldd_query_task)(struct sas_task *);
+ /* Special TMF callbacks */
+ void (*lldd_tmf_exec_complete)(struct domain_device *dev);
+
/* Port and Adapter management */
int (*lldd_clear_nexus_port)(struct asd_sas_port *);
int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 12/18] scsi: libsas: Add TMF handler aborted callback
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (10 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 11/18] scsi: libsas: Add TMF handler exec complete callback John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 13/18] scsi: libsas: Add sas_abort_task_set() John Garry
` (7 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
The hisi_sas and pm8001 TMF handlers have some special processing for when
the TMF is aborted, so add a callback and fill it in for those drivers.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 20 ++++++++++++++++++++
drivers/scsi/libsas/sas_scsi_host.c | 2 ++
drivers/scsi/pm8001/pm8001_init.c | 1 +
drivers/scsi/pm8001/pm8001_sas.c | 8 ++++++++
drivers/scsi/pm8001/pm8001_sas.h | 1 +
include/scsi/libsas.h | 1 +
6 files changed, 33 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index bd40323f7053..21e929c8bdb0 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -666,6 +666,25 @@ static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device)
return sas_dev;
}
+static void hisi_sas_tmf_aborted(struct sas_task *task)
+{
+ struct hisi_sas_slot *slot = task->lldd_task;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
+
+ if (slot) {
+ struct hisi_sas_cq *cq =
+ &hisi_hba->cq[slot->dlvry_queue];
+ /*
+ * sync irq to avoid free'ing task
+ * before using task in IO completion
+ */
+ synchronize_irq(cq->irq_no);
+ slot->task = NULL;
+ }
+}
+
#define HISI_SAS_DISK_RECOVER_CNT 3
static int hisi_sas_init_device(struct domain_device *device)
{
@@ -2322,6 +2341,7 @@ static struct sas_domain_function_template hisi_sas_transport_ops = {
.lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha,
.lldd_port_formed = hisi_sas_port_formed,
.lldd_write_gpio = hisi_sas_write_gpio,
+ .lldd_tmf_aborted = hisi_sas_tmf_aborted,
};
void hisi_sas_init_mem(struct hisi_hba *hisi_hba)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 0f599744738d..c5d9c6a6b870 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -966,6 +966,8 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
pr_err("TMF task timeout for %016llx and not done\n",
SAS_ADDR(device->sas_addr));
+ if (i->dft->lldd_tmf_aborted)
+ i->dft->lldd_tmf_aborted(task);
break;
}
pr_warn("TMF task timeout for %016llx and done\n",
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 8eef8f4de42f..6a3635c39f6a 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -129,6 +129,7 @@ static struct sas_domain_function_template pm8001_transport_ops = {
.lldd_query_task = pm8001_query_task,
.lldd_port_formed = pm8001_port_formed,
.lldd_tmf_exec_complete = pm8001_setds_completion,
+ .lldd_tmf_aborted = pm8001_tmf_aborted,
};
/**
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 69da7246ea20..a530fb0aaa05 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1390,3 +1390,11 @@ void pm8001_setds_completion(struct domain_device *dev)
wait_for_completion(&completion_setstate);
}
}
+
+void pm8001_tmf_aborted(struct sas_task *task)
+{
+ struct pm8001_ccb_info *ccb = task->lldd_task;
+
+ if (ccb)
+ ccb->task = NULL;
+}
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index c19c9c80206c..aa018d2d19a3 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -743,6 +743,7 @@ pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
task->task_done(task);
}
void pm8001_setds_completion(struct domain_device *dev);
+void pm8001_tmf_aborted(struct sas_task *task);
#endif
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index dd6551e809a0..c44de478e314 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -654,6 +654,7 @@ struct sas_domain_function_template {
/* Special TMF callbacks */
void (*lldd_tmf_exec_complete)(struct domain_device *dev);
+ void (*lldd_tmf_aborted)(struct sas_task *task);
/* Port and Adapter management */
int (*lldd_clear_nexus_port)(struct asd_sas_port *);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 13/18] scsi: libsas: Add sas_abort_task_set()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (11 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 12/18] scsi: libsas: Add TMF handler aborted callback John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 14/18] scsi: libsas: Add sas_clear_task_set() John Garry
` (6 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a generic implementation of abort task set TMF handler, and use in
LLDDs.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 5 +----
drivers/scsi/libsas/sas_scsi_host.c | 16 ++++++++++++----
drivers/scsi/mvsas/mv_init.c | 2 +-
drivers/scsi/mvsas/mv_sas.c | 11 -----------
drivers/scsi/mvsas/mv_sas.h | 1 -
drivers/scsi/pm8001/pm8001_init.c | 2 +-
drivers/scsi/pm8001/pm8001_sas.c | 8 --------
drivers/scsi/pm8001/pm8001_sas.h | 1 -
include/scsi/libsas.h | 2 ++
9 files changed, 17 insertions(+), 31 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 21e929c8bdb0..54fe25ddac5b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1788,7 +1788,6 @@ static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
{
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
- struct sas_tmf_task tmf_task;
int rc;
rc = hisi_sas_internal_task_abort(hisi_hba, device,
@@ -1799,9 +1798,7 @@ static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
}
hisi_sas_dereg_device(hisi_hba, device);
- tmf_task.tmf = TMF_ABORT_TASK_SET;
- rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
-
+ rc = sas_abort_task_set(device, lun);
if (rc == TMF_RESP_FUNC_COMPLETE)
hisi_sas_release_task(hisi_hba, device);
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index c5d9c6a6b870..06bc7221ac3a 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -1030,10 +1030,8 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
return res;
}
-int sas_execute_ssp_tmf(struct domain_device *device, u8 *lun,
- struct sas_tmf_task *tmf);
-int sas_execute_ssp_tmf(struct domain_device *device, u8 *lun,
- struct sas_tmf_task *tmf)
+static int sas_execute_ssp_tmf(struct domain_device *device, u8 *lun,
+ struct sas_tmf_task *tmf)
{
struct sas_ssp_task ssp_task;
@@ -1045,6 +1043,16 @@ int sas_execute_ssp_tmf(struct domain_device *device, u8 *lun,
return sas_execute_tmf(device, &ssp_task, sizeof(ssp_task), -1, tmf);
}
+int sas_abort_task_set(struct domain_device *dev, u8 *lun)
+{
+ struct sas_tmf_task tmf_task = {
+ .tmf = TMF_ABORT_TASK_SET,
+ };
+
+ return sas_execute_ssp_tmf(dev, lun, &tmf_task);
+}
+EXPORT_SYMBOL_GPL(sas_abort_task_set);
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 3fe0a9351cea..13a002e08a12 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -63,7 +63,7 @@ static struct sas_domain_function_template mvs_transport_ops = {
.lldd_control_phy = mvs_phy_control,
.lldd_abort_task = mvs_abort_task,
- .lldd_abort_task_set = mvs_abort_task_set,
+ .lldd_abort_task_set = sas_abort_task_set,
.lldd_clear_task_set = mvs_clear_task_set,
.lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
.lldd_lu_reset = mvs_lu_reset,
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 47fcd8de9ece..0cdbba31f327 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1536,17 +1536,6 @@ int mvs_abort_task(struct sas_task *task)
return rc;
}
-int mvs_abort_task_set(struct domain_device *dev, u8 *lun)
-{
- int rc;
- struct sas_tmf_task tmf_task;
-
- tmf_task.tmf = TMF_ABORT_TASK_SET;
- rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
-
- return rc;
-}
-
int mvs_clear_task_set(struct domain_device *dev, u8 *lun)
{
int rc = TMF_RESP_FUNC_FAILED;
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index fa654c73beee..0bee63596208 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -440,7 +440,6 @@ void mvs_scan_start(struct Scsi_Host *shost);
int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time);
int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags);
int mvs_abort_task(struct sas_task *task);
-int mvs_abort_task_set(struct domain_device *dev, u8 *lun);
int mvs_clear_task_set(struct domain_device *dev, u8 * lun);
void mvs_port_formed(struct asd_sas_phy *sas_phy);
void mvs_port_deformed(struct asd_sas_phy *sas_phy);
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 6a3635c39f6a..d7b95ad4533e 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -122,7 +122,7 @@ static struct sas_domain_function_template pm8001_transport_ops = {
.lldd_control_phy = pm8001_phy_control,
.lldd_abort_task = pm8001_abort_task,
- .lldd_abort_task_set = pm8001_abort_task_set,
+ .lldd_abort_task_set = sas_abort_task_set,
.lldd_clear_task_set = pm8001_clear_task_set,
.lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset,
.lldd_lu_reset = pm8001_lu_reset,
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index a530fb0aaa05..543113564a58 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1342,14 +1342,6 @@ int pm8001_abort_task(struct sas_task *task)
return rc;
}
-int pm8001_abort_task_set(struct domain_device *dev, u8 *lun)
-{
- struct sas_tmf_task tmf_task;
-
- tmf_task.tmf = TMF_ABORT_TASK_SET;
- return pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
-}
-
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun)
{
struct sas_tmf_task tmf_task;
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index aa018d2d19a3..d26f25186779 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -644,7 +644,6 @@ void pm8001_scan_start(struct Scsi_Host *shost);
int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time);
int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags);
int pm8001_abort_task(struct sas_task *task);
-int pm8001_abort_task_set(struct domain_device *dev, u8 *lun);
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun);
int pm8001_dev_found(struct domain_device *dev);
void pm8001_dev_gone(struct domain_device *dev);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index c44de478e314..53fdc18bdd09 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -722,6 +722,8 @@ struct sas_phy *sas_get_local_phy(struct domain_device *dev);
int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
+int sas_abort_task_set(struct domain_device *dev, u8 *lun);
+
int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
gfp_t gfp_flags);
int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event,
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 14/18] scsi: libsas: Add sas_clear_task_set()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (12 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 13/18] scsi: libsas: Add sas_abort_task_set() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 15/18] scsi: libsas: Add sas_lu_reset() John Garry
` (5 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a generic implementation of clear task set TMF handler, and use in
LLDDs.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 5 +----
drivers/scsi/libsas/sas_scsi_host.c | 10 ++++++++++
drivers/scsi/mvsas/mv_init.c | 2 +-
drivers/scsi/mvsas/mv_sas.c | 11 -----------
drivers/scsi/mvsas/mv_sas.h | 1 -
drivers/scsi/pm8001/pm8001_sas.c | 4 +---
include/scsi/libsas.h | 1 +
7 files changed, 14 insertions(+), 20 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 54fe25ddac5b..6826ddfeaca5 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -690,7 +690,6 @@ static int hisi_sas_init_device(struct domain_device *device)
{
int rc = TMF_RESP_FUNC_COMPLETE;
struct scsi_lun lun;
- struct sas_tmf_task tmf_task;
int retry = HISI_SAS_DISK_RECOVER_CNT;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
@@ -700,10 +699,8 @@ static int hisi_sas_init_device(struct domain_device *device)
case SAS_END_DEVICE:
int_to_scsilun(0, &lun);
- tmf_task.tmf = TMF_CLEAR_TASK_SET;
while (retry-- > 0) {
- rc = hisi_sas_debug_issue_ssp_tmf(device, lun.scsi_lun,
- &tmf_task);
+ rc = sas_clear_task_set(device, lun.scsi_lun);
if (rc == TMF_RESP_FUNC_COMPLETE) {
hisi_sas_release_task(hisi_hba, device);
break;
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 06bc7221ac3a..ac669215c3bc 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -1053,6 +1053,16 @@ int sas_abort_task_set(struct domain_device *dev, u8 *lun)
}
EXPORT_SYMBOL_GPL(sas_abort_task_set);
+int sas_clear_task_set(struct domain_device *dev, u8 *lun)
+{
+ struct sas_tmf_task tmf_task = {
+ .tmf = TMF_CLEAR_TASK_SET,
+ };
+
+ return sas_execute_ssp_tmf(dev, lun, &tmf_task);
+}
+EXPORT_SYMBOL_GPL(sas_clear_task_set);
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 13a002e08a12..d12fb210c868 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -64,7 +64,7 @@ static struct sas_domain_function_template mvs_transport_ops = {
.lldd_abort_task = mvs_abort_task,
.lldd_abort_task_set = sas_abort_task_set,
- .lldd_clear_task_set = mvs_clear_task_set,
+ .lldd_clear_task_set = sas_clear_task_set,
.lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
.lldd_lu_reset = mvs_lu_reset,
.lldd_query_task = mvs_query_task,
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 0cdbba31f327..37604b1ebd46 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1536,17 +1536,6 @@ int mvs_abort_task(struct sas_task *task)
return rc;
}
-int mvs_clear_task_set(struct domain_device *dev, u8 *lun)
-{
- int rc = TMF_RESP_FUNC_FAILED;
- struct sas_tmf_task tmf_task;
-
- tmf_task.tmf = TMF_CLEAR_TASK_SET;
- rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
-
- return rc;
-}
-
static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task,
u32 slot_idx, int err)
{
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index 0bee63596208..509d8f32a04f 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -440,7 +440,6 @@ void mvs_scan_start(struct Scsi_Host *shost);
int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time);
int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags);
int mvs_abort_task(struct sas_task *task);
-int mvs_clear_task_set(struct domain_device *dev, u8 * lun);
void mvs_port_formed(struct asd_sas_phy *sas_phy);
void mvs_port_deformed(struct asd_sas_phy *sas_phy);
int mvs_dev_found(struct domain_device *dev);
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 543113564a58..fd86490616e8 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1344,14 +1344,12 @@ int pm8001_abort_task(struct sas_task *task)
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun)
{
- struct sas_tmf_task tmf_task;
struct pm8001_device *pm8001_dev = dev->lldd_dev;
struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
pm8001_dbg(pm8001_ha, EH, "I_T_L_Q clear task set[%x]\n",
pm8001_dev->device_id);
- tmf_task.tmf = TMF_CLEAR_TASK_SET;
- return pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
+ return sas_clear_task_set(dev, lun);
}
void pm8001_port_formed(struct asd_sas_phy *sas_phy)
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 53fdc18bdd09..f71a47740ff8 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -723,6 +723,7 @@ struct sas_phy *sas_get_local_phy(struct domain_device *dev);
int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
int sas_abort_task_set(struct domain_device *dev, u8 *lun);
+int sas_clear_task_set(struct domain_device *dev, u8 *lun);
int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
gfp_t gfp_flags);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 15/18] scsi: libsas: Add sas_lu_reset()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (13 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 14/18] scsi: libsas: Add sas_clear_task_set() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 16/18] scsi: libsas: Add sas_query_task() John Garry
` (4 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a generic implementation of LU reset TMF handler, and use in LLDDs.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 4 +---
drivers/scsi/libsas/sas_scsi_host.c | 10 ++++++++++
drivers/scsi/mvsas/mv_sas.c | 4 +---
drivers/scsi/pm8001/pm8001_sas.c | 4 +---
include/scsi/libsas.h | 1 +
5 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 6826ddfeaca5..3773874b0c2e 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1933,9 +1933,7 @@ static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
hisi_sas_release_task(hisi_hba, device);
sas_put_local_phy(phy);
} else {
- struct sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET };
-
- rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+ rc = sas_lu_reset(device, lun);
if (rc == TMF_RESP_FUNC_COMPLETE)
hisi_sas_release_task(hisi_hba, device);
}
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index ac669215c3bc..d6f29e13204e 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -1063,6 +1063,16 @@ int sas_clear_task_set(struct domain_device *dev, u8 *lun)
}
EXPORT_SYMBOL_GPL(sas_clear_task_set);
+int sas_lu_reset(struct domain_device *dev, u8 *lun)
+{
+ struct sas_tmf_task tmf_task = {
+ .tmf = TMF_LU_RESET,
+ };
+
+ return sas_execute_ssp_tmf(dev, lun, &tmf_task);
+}
+EXPORT_SYMBOL_GPL(sas_lu_reset);
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 37604b1ebd46..fdaaa4380e74 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1381,13 +1381,11 @@ int mvs_lu_reset(struct domain_device *dev, u8 *lun)
{
unsigned long flags;
int rc = TMF_RESP_FUNC_FAILED;
- struct sas_tmf_task tmf_task;
struct mvs_device * mvi_dev = dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
- tmf_task.tmf = TMF_LU_RESET;
mvi_dev->dev_status = MVS_DEV_EH;
- rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
+ rc = sas_lu_reset(dev, lun);
if (rc == TMF_RESP_FUNC_COMPLETE) {
spin_lock_irqsave(&mvi->lock, flags);
mvs_release_task(mvi, dev);
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index fd86490616e8..18e8420055b5 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1112,7 +1112,6 @@ int pm8001_I_T_nexus_event_handler(struct domain_device *dev)
int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
{
int rc = TMF_RESP_FUNC_FAILED;
- struct sas_tmf_task tmf_task;
struct pm8001_device *pm8001_dev = dev->lldd_dev;
struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
DECLARE_COMPLETION_ONSTACK(completion_setstate);
@@ -1127,8 +1126,7 @@ int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
pm8001_dev, DS_OPERATIONAL);
wait_for_completion(&completion_setstate);
} else {
- tmf_task.tmf = TMF_LU_RESET;
- rc = pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
+ rc = sas_lu_reset(dev, lun);
}
/* If failed, fall-through I_T_Nexus reset */
pm8001_dbg(pm8001_ha, EH, "for device[%x]:rc=%d\n",
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index f71a47740ff8..7b1e2e7f5a6c 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -724,6 +724,7 @@ int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
int sas_abort_task_set(struct domain_device *dev, u8 *lun);
int sas_clear_task_set(struct domain_device *dev, u8 *lun);
+int sas_lu_reset(struct domain_device *dev, u8 *lun);
int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
gfp_t gfp_flags);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 16/18] scsi: libsas: Add sas_query_task()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (14 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 15/18] scsi: libsas: Add sas_lu_reset() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 17/18] scsi: libsas: Add sas_abort_task() John Garry
` (3 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a generic implementation of query task TMF handler, and use in LLDDs.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 12 +-----------
drivers/scsi/libsas/sas_scsi_host.c | 16 ++++++++++++++++
drivers/scsi/mvsas/mv_sas.c | 9 +--------
drivers/scsi/pm8001/pm8001_sas.c | 7 +------
include/scsi/libsas.h | 1 +
5 files changed, 20 insertions(+), 25 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 3773874b0c2e..808eefaf3359 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1988,23 +1988,13 @@ static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
static int hisi_sas_query_task(struct sas_task *task)
{
- struct scsi_lun lun;
- struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
- struct scsi_cmnd *cmnd = task->uldd_task;
- struct domain_device *device = task->dev;
struct hisi_sas_slot *slot = task->lldd_task;
u32 tag = slot->idx;
- int_to_scsilun(cmnd->device->lun, &lun);
- tmf_task.tmf = TMF_QUERY_TASK;
- tmf_task.tag_of_task_to_be_managed = tag;
-
- rc = hisi_sas_debug_issue_ssp_tmf(device,
- lun.scsi_lun,
- &tmf_task);
+ rc = sas_query_task(task, tag);
switch (rc) {
/* The task is still in Lun, release it then */
case TMF_RESP_FUNC_SUCC:
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index d6f29e13204e..1923a0627ce7 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -1073,6 +1073,22 @@ int sas_lu_reset(struct domain_device *dev, u8 *lun)
}
EXPORT_SYMBOL_GPL(sas_lu_reset);
+int sas_query_task(struct sas_task *task, u16 tag)
+{
+ struct sas_tmf_task tmf_task = {
+ .tmf = TMF_QUERY_TASK,
+ .tag_of_task_to_be_managed = tag,
+ };
+ struct scsi_cmnd *cmnd = task->uldd_task;
+ struct domain_device *dev = task->dev;
+ struct scsi_lun lun;
+
+ int_to_scsilun(cmnd->device->lun, &lun);
+
+ return sas_execute_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
+}
+EXPORT_SYMBOL_GPL(sas_query_task);
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index fdaaa4380e74..63a96c307e3c 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1422,27 +1422,20 @@ int mvs_I_T_nexus_reset(struct domain_device *dev)
int mvs_query_task(struct sas_task *task)
{
u32 tag;
- struct scsi_lun lun;
- struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
- struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task;
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
- int_to_scsilun(cmnd->device->lun, &lun);
rc = mvs_find_tag(mvi, task, &tag);
if (rc == 0) {
rc = TMF_RESP_FUNC_FAILED;
return rc;
}
- tmf_task.tmf = TMF_QUERY_TASK;
- tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag);
-
- rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
+ rc = sas_query_task(task, tag);
switch (rc) {
/* The task is still in Lun, release it then */
case TMF_RESP_FUNC_SUCC:
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 18e8420055b5..e8bdc3390019 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1138,8 +1138,6 @@ int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
int pm8001_query_task(struct sas_task *task)
{
u32 tag = 0xdeadbeef;
- struct scsi_lun lun;
- struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED;
if (unlikely(!task || !task->lldd_task || !task->dev))
return rc;
@@ -1150,17 +1148,14 @@ int pm8001_query_task(struct sas_task *task)
struct pm8001_hba_info *pm8001_ha =
pm8001_find_ha_by_dev(dev);
- int_to_scsilun(cmnd->device->lun, &lun);
rc = pm8001_find_tag(task, &tag);
if (rc == 0) {
rc = TMF_RESP_FUNC_FAILED;
return rc;
}
pm8001_dbg(pm8001_ha, EH, "Query:[%16ph]\n", cmnd->cmnd);
- tmf_task.tmf = TMF_QUERY_TASK;
- tmf_task.tag_of_task_to_be_managed = tag;
- rc = pm8001_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
+ rc = sas_query_task(task, tag);
switch (rc) {
/* The task is still in Lun, release it then */
case TMF_RESP_FUNC_SUCC:
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 7b1e2e7f5a6c..bf8613fb1c4e 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -725,6 +725,7 @@ int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
int sas_abort_task_set(struct domain_device *dev, u8 *lun);
int sas_clear_task_set(struct domain_device *dev, u8 *lun);
int sas_lu_reset(struct domain_device *dev, u8 *lun);
+int sas_query_task(struct sas_task *task, u16 tag);
int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
gfp_t gfp_flags);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 17/18] scsi: libsas: Add sas_abort_task()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (15 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 16/18] scsi: libsas: Add sas_query_task() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-22 12:50 ` [PATCH v3 18/18] scsi: libsas: Add sas_execute_ata_cmd() John Garry
` (2 subsequent siblings)
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a generic implementation of abort task TMF handler, and use in LLDDs.
With that, some LLDDs custom TMF functions can now be deleted.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 27 +-----
drivers/scsi/libsas/sas_scsi_host.c | 16 ++++
drivers/scsi/mvsas/mv_sas.c | 118 +-------------------------
drivers/scsi/pm8001/pm8001_sas.c | 117 +------------------------
include/scsi/libsas.h | 1 +
5 files changed, 20 insertions(+), 259 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 808eefaf3359..34ed4f8da7cc 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -10,8 +10,6 @@
#define DEV_IS_GONE(dev) \
((!dev) || (dev->dev_type == SAS_PHY_UNUSED))
-static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
- u8 *lun, struct sas_tmf_task *tmf);
static int
hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
struct domain_device *device,
@@ -1416,20 +1414,6 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)
return rc;
}
-static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
- u8 *lun, struct sas_tmf_task *tmf)
-{
- struct sas_ssp_task ssp_task;
-
- if (!(device->tproto & SAS_PROTOCOL_SSP))
- return TMF_RESP_FUNC_ESUPP;
-
- memcpy(ssp_task.LUN, lun, 8);
-
- return hisi_sas_exec_internal_tmf_task(device, &ssp_task,
- sizeof(ssp_task), tmf);
-}
-
static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba)
{
u32 state = hisi_hba->hw->get_phys_state(hisi_hba);
@@ -1675,8 +1659,6 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
static int hisi_sas_abort_task(struct sas_task *task)
{
- struct scsi_lun lun;
- struct sas_tmf_task tmf_task;
struct domain_device *device = task->dev;
struct hisi_sas_device *sas_dev = device->lldd_dev;
struct hisi_hba *hisi_hba;
@@ -1711,18 +1693,11 @@ static int hisi_sas_abort_task(struct sas_task *task)
spin_unlock_irqrestore(&task->task_state_lock, flags);
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
- struct scsi_cmnd *cmnd = task->uldd_task;
struct hisi_sas_slot *slot = task->lldd_task;
u16 tag = slot->idx;
int rc2;
- int_to_scsilun(cmnd->device->lun, &lun);
- tmf_task.tmf = TMF_ABORT_TASK;
- tmf_task.tag_of_task_to_be_managed = tag;
-
- rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun,
- &tmf_task);
-
+ rc = sas_abort_task(task, tag);
rc2 = hisi_sas_internal_task_abort(hisi_hba, device,
HISI_SAS_INT_ABT_CMD, tag,
false);
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 1923a0627ce7..87dd18a85f6f 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -1089,6 +1089,22 @@ int sas_query_task(struct sas_task *task, u16 tag)
}
EXPORT_SYMBOL_GPL(sas_query_task);
+int sas_abort_task(struct sas_task *task, u16 tag)
+{
+ struct sas_tmf_task tmf_task = {
+ .tmf = TMF_ABORT_TASK,
+ .tag_of_task_to_be_managed = tag,
+ };
+ struct scsi_cmnd *cmnd = task->uldd_task;
+ struct domain_device *dev = task->dev;
+ struct scsi_lun lun;
+
+ int_to_scsilun(cmnd->device->lun, &lun);
+
+ return sas_execute_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
+}
+EXPORT_SYMBOL_GPL(sas_abort_task);
+
/*
* Tell an upper layer that it needs to initiate an abort for a given task.
* This should only ever be called by an LLDD.
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 63a96c307e3c..a6867dae0e7c 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1254,114 +1254,6 @@ void mvs_dev_gone(struct domain_device *dev)
mvs_dev_gone_notify(dev);
}
-static void mvs_task_done(struct sas_task *task)
-{
- if (!del_timer(&task->slow_task->timer))
- return;
- complete(&task->slow_task->completion);
-}
-
-static void mvs_tmf_timedout(struct timer_list *t)
-{
- struct sas_task_slow *slow = from_timer(slow, t, timer);
- struct sas_task *task = slow->task;
-
- task->task_state_flags |= SAS_TASK_STATE_ABORTED;
- complete(&task->slow_task->completion);
-}
-
-#define MVS_TASK_TIMEOUT 20
-static int mvs_exec_internal_tmf_task(struct domain_device *dev,
- void *parameter, u32 para_len, struct sas_tmf_task *tmf)
-{
- int res, retry;
- struct sas_task *task = NULL;
-
- for (retry = 0; retry < 3; retry++) {
- task = sas_alloc_slow_task(GFP_KERNEL);
- if (!task)
- return -ENOMEM;
-
- task->dev = dev;
- task->task_proto = dev->tproto;
-
- memcpy(&task->ssp_task, parameter, para_len);
- task->task_done = mvs_task_done;
-
- task->slow_task->timer.function = mvs_tmf_timedout;
- task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ;
- add_timer(&task->slow_task->timer);
-
- task->tmf = tmf;
-
- res = mvs_queue_command(task, GFP_KERNEL);
-
- if (res) {
- del_timer(&task->slow_task->timer);
- mv_printk("executing internal task failed:%d\n", res);
- goto ex_err;
- }
-
- wait_for_completion(&task->slow_task->completion);
- res = TMF_RESP_FUNC_FAILED;
- /* Even TMF timed out, return direct. */
- if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
- if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
- mv_printk("TMF task[%x] timeout.\n", tmf->tmf);
- goto ex_err;
- }
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_SAM_STAT_GOOD) {
- res = TMF_RESP_FUNC_COMPLETE;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_DATA_UNDERRUN) {
- /* no error, but return the number of bytes of
- * underrun */
- res = task->task_status.residual;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_DATA_OVERRUN) {
- mv_dprintk("blocked task error.\n");
- res = -EMSGSIZE;
- break;
- } else {
- mv_dprintk(" task to dev %016llx response: 0x%x "
- "status 0x%x\n",
- SAS_ADDR(dev->sas_addr),
- task->task_status.resp,
- task->task_status.stat);
- sas_free_task(task);
- task = NULL;
-
- }
- }
-ex_err:
- BUG_ON(retry == 3 && task != NULL);
- sas_free_task(task);
- return res;
-}
-
-static int mvs_debug_issue_ssp_tmf(struct domain_device *dev,
- u8 *lun, struct sas_tmf_task *tmf)
-{
- struct sas_ssp_task ssp_task;
- if (!(dev->tproto & SAS_PROTOCOL_SSP))
- return TMF_RESP_FUNC_ESUPP;
-
- memcpy(ssp_task.LUN, lun, 8);
-
- return mvs_exec_internal_tmf_task(dev, &ssp_task,
- sizeof(ssp_task), tmf);
-}
-
-
/* Standard mandates link reset for ATA (type 0)
and hard reset for SSP (type 1) , only for RECOVERY */
static int mvs_debug_I_T_nexus_reset(struct domain_device *dev)
@@ -1452,8 +1344,6 @@ int mvs_query_task(struct sas_task *task)
/* mandatory SAM-3, still need free task/slot info */
int mvs_abort_task(struct sas_task *task)
{
- struct scsi_lun lun;
- struct sas_tmf_task tmf_task;
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi;
@@ -1477,9 +1367,6 @@ int mvs_abort_task(struct sas_task *task)
spin_unlock_irqrestore(&task->task_state_lock, flags);
mvi_dev->dev_status = MVS_DEV_EH;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
- struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task;
-
- int_to_scsilun(cmnd->device->lun, &lun);
rc = mvs_find_tag(mvi, task, &tag);
if (rc == 0) {
mv_printk("No such tag in %s\n", __func__);
@@ -1487,10 +1374,7 @@ int mvs_abort_task(struct sas_task *task)
return rc;
}
- tmf_task.tmf = TMF_ABORT_TASK;
- tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag);
-
- rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
+ rc = sas_abort_task(task, tag);
/* if successful, clear the task and callback forwards.*/
if (rc == TMF_RESP_FUNC_COMPLETE) {
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index e8bdc3390019..828d719afa1b 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -706,103 +706,6 @@ static void pm8001_tmf_timedout(struct timer_list *t)
}
#define PM8001_TASK_TIMEOUT 20
-/**
- * pm8001_exec_internal_tmf_task - execute some task management commands.
- * @dev: the wanted device.
- * @tmf: which task management wanted to be take.
- * @para_len: para_len.
- * @parameter: ssp task parameter.
- *
- * when errors or exception happened, we may want to do something, for example
- * abort the issued task which result in this exception, it is done by calling
- * this function, note it is also with the task execute interface.
- */
-static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
- void *parameter, u32 para_len, struct sas_tmf_task *tmf)
-{
- int res, retry;
- struct sas_task *task = NULL;
- struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
- struct pm8001_device *pm8001_dev = dev->lldd_dev;
- DECLARE_COMPLETION_ONSTACK(completion_setstate);
-
- for (retry = 0; retry < 3; retry++) {
- task = sas_alloc_slow_task(GFP_KERNEL);
- if (!task)
- return -ENOMEM;
-
- task->dev = dev;
- task->task_proto = dev->tproto;
- memcpy(&task->ssp_task, parameter, para_len);
- task->task_done = pm8001_task_done;
- task->slow_task->timer.function = pm8001_tmf_timedout;
- task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ;
- add_timer(&task->slow_task->timer);
-
- task->tmf = tmf;
-
- res = pm8001_queue_command(task, GFP_KERNEL);
-
- if (res) {
- del_timer(&task->slow_task->timer);
- pm8001_dbg(pm8001_ha, FAIL, "Executing internal task failed\n");
- goto ex_err;
- }
- wait_for_completion(&task->slow_task->completion);
- if (pm8001_ha->chip_id != chip_8001) {
- pm8001_dev->setds_completion = &completion_setstate;
- PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
- pm8001_dev, DS_OPERATIONAL);
- wait_for_completion(&completion_setstate);
- }
- res = -TMF_RESP_FUNC_FAILED;
- /* Even TMF timed out, return direct. */
- if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
- struct pm8001_ccb_info *ccb = task->lldd_task;
-
- pm8001_dbg(pm8001_ha, FAIL, "TMF task[%x]timeout.\n",
- tmf->tmf);
-
- if (ccb)
- ccb->task = NULL;
- goto ex_err;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_SAM_STAT_GOOD) {
- res = TMF_RESP_FUNC_COMPLETE;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_DATA_UNDERRUN) {
- /* no error, but return the number of bytes of
- * underrun */
- res = task->task_status.residual;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_DATA_OVERRUN) {
- pm8001_dbg(pm8001_ha, FAIL, "Blocked task error.\n");
- res = -EMSGSIZE;
- break;
- } else {
- pm8001_dbg(pm8001_ha, EH,
- " Task to dev %016llx response:0x%x status 0x%x\n",
- SAS_ADDR(dev->sas_addr),
- task->task_status.resp,
- task->task_status.stat);
- sas_free_task(task);
- task = NULL;
- }
- }
-ex_err:
- BUG_ON(retry == 3 && task != NULL);
- sas_free_task(task);
- return res;
-}
-
static int
pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha,
struct pm8001_device *pm8001_dev, struct domain_device *dev, u32 flag,
@@ -910,18 +813,6 @@ void pm8001_dev_gone(struct domain_device *dev)
pm8001_dev_gone_notify(dev);
}
-static int pm8001_issue_ssp_tmf(struct domain_device *dev,
- u8 *lun, struct sas_tmf_task *tmf)
-{
- struct sas_ssp_task ssp_task;
- if (!(dev->tproto & SAS_PROTOCOL_SSP))
- return TMF_RESP_FUNC_ESUPP;
-
- memcpy((u8 *)&ssp_task.LUN, lun, 8);
- return pm8001_exec_internal_tmf_task(dev, &ssp_task, sizeof(ssp_task),
- tmf);
-}
-
/* retry commands by ha, by task and/or by device */
void pm8001_open_reject_retry(
struct pm8001_hba_info *pm8001_ha,
@@ -1181,9 +1072,7 @@ int pm8001_abort_task(struct sas_task *task)
u32 tag;
struct domain_device *dev ;
struct pm8001_hba_info *pm8001_ha;
- struct scsi_lun lun;
struct pm8001_device *pm8001_dev;
- struct sas_tmf_task tmf_task;
int rc = TMF_RESP_FUNC_FAILED, ret;
u32 phy_id, port_id;
struct sas_task_slow slow_task;
@@ -1219,11 +1108,7 @@ int pm8001_abort_task(struct sas_task *task)
}
spin_unlock_irqrestore(&task->task_state_lock, flags);
if (task->task_proto & SAS_PROTOCOL_SSP) {
- struct scsi_cmnd *cmnd = task->uldd_task;
- int_to_scsilun(cmnd->device->lun, &lun);
- tmf_task.tmf = TMF_ABORT_TASK;
- tmf_task.tag_of_task_to_be_managed = tag;
- rc = pm8001_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
+ rc = sas_abort_task(task, tag);
pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev,
pm8001_dev->sas_device, 0, tag);
} else if (task->task_proto & SAS_PROTOCOL_SATA ||
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index bf8613fb1c4e..4ea964d33600 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -726,6 +726,7 @@ int sas_abort_task_set(struct domain_device *dev, u8 *lun);
int sas_clear_task_set(struct domain_device *dev, u8 *lun);
int sas_lu_reset(struct domain_device *dev, u8 *lun);
int sas_query_task(struct sas_task *task, u16 tag);
+int sas_abort_task(struct sas_task *task, u16 tag);
int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
gfp_t gfp_flags);
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH v3 18/18] scsi: libsas: Add sas_execute_ata_cmd()
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (16 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 17/18] scsi: libsas: Add sas_abort_task() John Garry
@ 2022-02-22 12:50 ` John Garry
2022-02-23 2:20 ` [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code Martin K. Petersen
2022-02-28 3:43 ` Martin K. Petersen
19 siblings, 0 replies; 21+ messages in thread
From: John Garry @ 2022-02-22 12:50 UTC (permalink / raw)
To: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch
Cc: Ajish.Koshy, yanaijie, linux-doc, linux-kernel, linux-scsi,
linuxarm, liuqi115, Viswas.G, John Garry
Add a function to execute an ATA command using the TMF code, and use in
the hisi_sas driver. That driver needs to be able to issue the command on
a specific phy, so add an interface for that.
With that, hisi_sas_exec_internal_tmf_task() may be deleted.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 130 +------------------------
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 5 +-
drivers/scsi/libsas/sas_ata.c | 8 ++
drivers/scsi/libsas/sas_scsi_host.c | 10 +-
include/scsi/libsas.h | 7 +-
include/scsi/sas_ata.h | 8 ++
6 files changed, 34 insertions(+), 134 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 34ed4f8da7cc..efedfb3332c3 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1239,124 +1239,7 @@ static void hisi_sas_tmf_timedout(struct timer_list *t)
complete(&task->slow_task->completion);
}
-#define TASK_TIMEOUT (20 * HZ)
-#define TASK_RETRY 3
#define INTERNAL_ABORT_TIMEOUT (6 * HZ)
-static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
- void *parameter, u32 para_len,
- struct sas_tmf_task *tmf)
-{
- struct hisi_sas_device *sas_dev = device->lldd_dev;
- struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
- struct device *dev = hisi_hba->dev;
- struct sas_task *task;
- int res, retry;
-
- for (retry = 0; retry < TASK_RETRY; retry++) {
- task = sas_alloc_slow_task(GFP_KERNEL);
- if (!task)
- return -ENOMEM;
-
- task->dev = device;
- task->task_proto = device->tproto;
-
- if (dev_is_sata(device)) {
- task->ata_task.device_control_reg_update = 1;
- memcpy(&task->ata_task.fis, parameter, para_len);
- } else {
- memcpy(&task->ssp_task, parameter, para_len);
- }
- task->task_done = hisi_sas_task_done;
-
- task->slow_task->timer.function = hisi_sas_tmf_timedout;
- task->slow_task->timer.expires = jiffies + TASK_TIMEOUT;
- add_timer(&task->slow_task->timer);
-
- task->tmf = tmf;
-
- res = hisi_sas_queue_command(task, GFP_KERNEL);
- if (res) {
- del_timer_sync(&task->slow_task->timer);
- dev_err(dev, "abort tmf: executing internal task failed: %d\n",
- res);
- goto ex_err;
- }
-
- wait_for_completion(&task->slow_task->completion);
- res = TMF_RESP_FUNC_FAILED;
- /* Even TMF timed out, return direct. */
- if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
- if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
- struct hisi_sas_slot *slot = task->lldd_task;
-
- dev_err(dev, "abort tmf: TMF task timeout and not done\n");
- if (slot) {
- struct hisi_sas_cq *cq =
- &hisi_hba->cq[slot->dlvry_queue];
- /*
- * sync irq to avoid free'ing task
- * before using task in IO completion
- */
- synchronize_irq(cq->irq_no);
- slot->task = NULL;
- }
-
- goto ex_err;
- } else
- dev_err(dev, "abort tmf: TMF task timeout\n");
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == TMF_RESP_FUNC_COMPLETE) {
- res = TMF_RESP_FUNC_COMPLETE;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == TMF_RESP_FUNC_SUCC) {
- res = TMF_RESP_FUNC_SUCC;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_DATA_UNDERRUN) {
- /* no error, but return the number of bytes of
- * underrun
- */
- dev_warn(dev, "abort tmf: task to dev %016llx resp: 0x%x sts 0x%x underrun\n",
- SAS_ADDR(device->sas_addr),
- task->task_status.resp,
- task->task_status.stat);
- res = task->task_status.residual;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_DATA_OVERRUN) {
- dev_warn(dev, "abort tmf: blocked task error\n");
- res = -EMSGSIZE;
- break;
- }
-
- if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAS_OPEN_REJECT) {
- dev_warn(dev, "abort tmf: open reject failed\n");
- res = -EIO;
- } else {
- dev_warn(dev, "abort tmf: task to dev %016llx resp: 0x%x status 0x%x\n",
- SAS_ADDR(device->sas_addr),
- task->task_status.resp,
- task->task_status.stat);
- }
- sas_free_task(task);
- task = NULL;
- }
-ex_err:
- if (retry == TASK_RETRY)
- dev_warn(dev, "abort tmf: executing internal task failed!\n");
- sas_free_task(task);
- return res;
-}
static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev,
bool reset, int pmp, u8 *fis)
@@ -1380,14 +1263,12 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)
int rc = TMF_RESP_FUNC_FAILED;
struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
struct device *dev = hisi_hba->dev;
- int s = sizeof(struct host_to_dev_fis);
- struct sas_tmf_task tmf = {};
ata_for_each_link(link, ap, EDGE) {
int pmp = sata_srst_pmp(link);
hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis);
- rc = hisi_sas_exec_internal_tmf_task(device, fis, s, &tmf);
+ rc = sas_execute_ata_cmd(device, fis, -1);
if (rc != TMF_RESP_FUNC_COMPLETE)
break;
}
@@ -1397,8 +1278,7 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)
int pmp = sata_srst_pmp(link);
hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis);
- rc = hisi_sas_exec_internal_tmf_task(device, fis,
- s, &tmf);
+ rc = sas_execute_ata_cmd(device, fis, -1);
if (rc != TMF_RESP_FUNC_COMPLETE)
dev_err(dev, "ata disk %016llx de-reset failed\n",
SAS_ADDR(device->sas_addr));
@@ -1508,10 +1388,8 @@ static void hisi_sas_send_ata_reset_each_phy(struct hisi_hba *hisi_hba,
struct asd_sas_port *sas_port,
struct domain_device *device)
{
- struct sas_tmf_task tmf_task = { .force_phy = 1 };
struct ata_port *ap = device->sata_dev.ap;
struct device *dev = hisi_hba->dev;
- int s = sizeof(struct host_to_dev_fis);
int rc = TMF_RESP_FUNC_FAILED;
struct ata_link *link;
u8 fis[20] = {0};
@@ -1524,10 +1402,8 @@ static void hisi_sas_send_ata_reset_each_phy(struct hisi_hba *hisi_hba,
ata_for_each_link(link, ap, EDGE) {
int pmp = sata_srst_pmp(link);
- tmf_task.phy_id = i;
hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis);
- rc = hisi_sas_exec_internal_tmf_task(device, fis, s,
- &tmf_task);
+ rc = sas_execute_ata_cmd(device, fis, i);
if (rc != TMF_RESP_FUNC_COMPLETE) {
dev_err(dev, "phy%d ata reset failed rc=%d\n",
i, rc);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 5bab51dc21b3..441ac4b6f1f4 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -2491,6 +2491,7 @@ static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
struct asd_sas_port *sas_port = device->port;
struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+ struct sas_ata_task *ata_task = &task->ata_task;
struct sas_tmf_task *tmf = slot->tmf;
u8 *buf_cmd;
int has_data = 0, hdr_tag = 0;
@@ -2504,9 +2505,9 @@ static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
else
dw0 |= 4 << CMD_HDR_CMD_OFF;
- if (tmf && tmf->force_phy) {
+ if (tmf && ata_task->force_phy) {
dw0 |= CMD_HDR_FORCE_PHY_MSK;
- dw0 |= (1 << tmf->phy_id) << CMD_HDR_PHY_ID_OFF;
+ dw0 |= (1 << ata_task->force_phy_id) << CMD_HDR_PHY_ID_OFF;
}
hdr->dw0 = cpu_to_le32(dw0);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 71b42fe95b6f..d89ffb357f14 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -852,3 +852,11 @@ void sas_ata_wait_eh(struct domain_device *dev)
ap = dev->sata_dev.ap;
ata_port_wait_eh(ap);
}
+
+int sas_execute_ata_cmd(struct domain_device *device, u8 *fis, int force_phy_id)
+{
+ struct sas_tmf_task tmf_task = {};
+ return sas_execute_tmf(device, fis, sizeof(struct host_to_dev_fis),
+ force_phy_id, &tmf_task);
+}
+EXPORT_SYMBOL_GPL(sas_execute_ata_cmd);
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 87dd18a85f6f..5b5747e33dbd 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -937,8 +937,16 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
task->dev = device;
task->task_proto = device->tproto;
- if (!dev_is_sata(device))
+ if (dev_is_sata(device)) {
+ task->ata_task.device_control_reg_update = 1;
+ if (force_phy_id >= 0) {
+ task->ata_task.force_phy = true;
+ task->ata_task.force_phy_id = force_phy_id;
+ }
+ memcpy(&task->ata_task.fis, parameter, para_len);
+ } else {
memcpy(&task->ssp_task, parameter, para_len);
+ }
task->task_done = sas_task_internal_done;
task->tmf = tmf;
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 4ea964d33600..dc529cc92d65 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -552,6 +552,9 @@ struct sas_ata_task {
u8 stp_affil_pol:1;
u8 device_control_reg_update:1;
+
+ bool force_phy;
+ int force_phy_id;
};
struct sas_smp_task {
@@ -579,10 +582,6 @@ struct sas_ssp_task {
struct sas_tmf_task {
u8 tmf;
u16 tag_of_task_to_be_managed;
-
- /* Temp */
- int force_phy;
- int phy_id;
};
struct sas_task {
diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h
index 21e7c10c6295..d47dea70855d 100644
--- a/include/scsi/sas_ata.h
+++ b/include/scsi/sas_ata.h
@@ -32,6 +32,8 @@ void sas_probe_sata(struct asd_sas_port *port);
void sas_suspend_sata(struct asd_sas_port *port);
void sas_resume_sata(struct asd_sas_port *port);
void sas_ata_end_eh(struct ata_port *ap);
+int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
+ int force_phy_id);
#else
@@ -83,6 +85,12 @@ static inline int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy
static inline void sas_ata_end_eh(struct ata_port *ap)
{
}
+
+static inline int sas_execute_ata_cmd(struct domain_device *device, u8 *fis,
+ int force_phy_id)
+{
+ return 0;
+}
#endif
#endif /* _SAS_ATA_H_ */
--
2.26.2
^ permalink raw reply related [flat|nested] 21+ messages in thread* Re: [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (17 preceding siblings ...)
2022-02-22 12:50 ` [PATCH v3 18/18] scsi: libsas: Add sas_execute_ata_cmd() John Garry
@ 2022-02-23 2:20 ` Martin K. Petersen
2022-02-28 3:43 ` Martin K. Petersen
19 siblings, 0 replies; 21+ messages in thread
From: Martin K. Petersen @ 2022-02-23 2:20 UTC (permalink / raw)
To: John Garry
Cc: jejb, martin.petersen, artur.paszkiewicz, jinpu.wang, chenxiang66,
damien.lemoal, hch, Ajish.Koshy, yanaijie, linux-doc,
linux-kernel, linux-scsi, linuxarm, liuqi115, Viswas.G
John,
> This is just an update of the series to fix a build error, as reported
> here:
> https://lore.kernel.org/lkml/59b538b7-b4c5-8111-d2bf-7fb353ecb19b@huawei.com/
Replaced patch 18, thanks!
Generally an incremental patch is preferred if I have already applied
something. Otherwise I have to redo any edits or tweaks I made to the
original series (if any, but I usually don't remember and therefore will
have to do it all over).
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 21+ messages in thread* Re: [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code
2022-02-22 12:50 [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code John Garry
` (18 preceding siblings ...)
2022-02-23 2:20 ` [PATCH v3 00/18] scsi: libsas and users: Factor out LLDD TMF code Martin K. Petersen
@ 2022-02-28 3:43 ` Martin K. Petersen
19 siblings, 0 replies; 21+ messages in thread
From: Martin K. Petersen @ 2022-02-28 3:43 UTC (permalink / raw)
To: jinpu.wang, artur.paszkiewicz, hch, chenxiang66, damien.lemoal,
jejb, John Garry
Cc: Martin K . Petersen, linux-doc, Ajish.Koshy, linux-scsi,
linux-kernel, liuqi115, yanaijie, Viswas.G, linuxarm
On Tue, 22 Feb 2022 20:50:41 +0800, John Garry wrote:
> This is just an update of the series to fix a build error, as reported
> here:
> https://lore.kernel.org/lkml/59b538b7-b4c5-8111-d2bf-7fb353ecb19b@huawei.com/
>
> Original cover letter is here:
> https://lore.kernel.org/linux-scsi/0d4f988d-881c-3717-f9d8-38739cf17e91@opensource.wdc.com/T/#mcae9d344f2795bdbb8845da29a140b58dbafb6f8
>
> [...]
Applied to 5.18/scsi-queue, thanks!
[01/18] scsi: libsas: Handle non-TMF codes in sas_scsi_find_task()
https://git.kernel.org/mkp/scsi/c/9aacf6fe9059
[02/18] scsi: libsas: Use enum for response frame DATAPRES field
https://git.kernel.org/mkp/scsi/c/1d6049a3b14f
[03/18] scsi: libsas: Delete lldd_clear_aca callback
https://git.kernel.org/mkp/scsi/c/25882c82f850
[04/18] scsi: libsas: Delete SAS_SG_ERR
https://git.kernel.org/mkp/scsi/c/2dd6801a671c
[05/18] scsi: hisi_sas: Delete unused I_T_NEXUS_RESET_PHYUP_TIMEOUT
https://git.kernel.org/mkp/scsi/c/da19eaba6e75
[06/18] scsi: libsas: Move SMP task handlers to core
https://git.kernel.org/mkp/scsi/c/4aef43b25df2
[07/18] scsi: libsas: Add struct sas_tmf_task
https://git.kernel.org/mkp/scsi/c/bbfe82cdbaf8
[08/18] scsi: libsas: Add sas_task.tmf
https://git.kernel.org/mkp/scsi/c/96e54376a8b2
[09/18] scsi: libsas: Add sas_execute_tmf()
https://git.kernel.org/mkp/scsi/c/001ec7f89bea
[10/18] scsi: libsas: Add sas_execute_ssp_tmf()
https://git.kernel.org/mkp/scsi/c/350d85ba5bad
[11/18] scsi: libsas: Add TMF handler exec complete callback
https://git.kernel.org/mkp/scsi/c/2037a340314f
[12/18] scsi: libsas: Add TMF handler aborted callback
https://git.kernel.org/mkp/scsi/c/693e66a0a6ac
[13/18] scsi: libsas: Add sas_abort_task_set()
https://git.kernel.org/mkp/scsi/c/69b80a0ed0b5
[14/18] scsi: libsas: Add sas_clear_task_set()
https://git.kernel.org/mkp/scsi/c/e8585452953a
[15/18] scsi: libsas: Add sas_lu_reset()
https://git.kernel.org/mkp/scsi/c/29d7769055a2
[16/18] scsi: libsas: Add sas_query_task()
https://git.kernel.org/mkp/scsi/c/72f8810e1fdc
[17/18] scsi: libsas: Add sas_abort_task()
https://git.kernel.org/mkp/scsi/c/4fea759edfa7
[18/18] scsi: libsas: Add sas_execute_ata_cmd()
https://git.kernel.org/mkp/scsi/c/3f2e252ef727
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 21+ messages in thread