[PATCH 001/117] libsas: Introduce more SAM status code aliases in enum exec_status

Bart Van Assche
2021-04-20T00:08:54Z

This patch prepares for converting SAM status codes into an enum. Without
this patch, converting SAM status codes into an enumeration type would
trigger complaints about enum type mismatches for the SAS code.

Cc: Hannes Reinecke <hare@suse.com>
Cc: John Garry <john.garry@huawei.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/scsi/aic94xx/aic94xx_task.c | 2 +-
drivers/scsi/isci/request.c | 10 +++++-----
drivers/scsi/isci/task.c | 2 +-
drivers/scsi/libsas/sas_ata.c | 5 +++--
drivers/scsi/libsas/sas_expander.c | 2 +-
drivers/scsi/libsas/sas_task.c | 4 ++--
drivers/scsi/mvsas/mv_sas.c | 10 +++++-----
drivers/scsi/pm8001/pm8001_hwi.c | 16 ++++++++--------
drivers/scsi/pm8001/pm8001_sas.c | 4 ++--
drivers/scsi/pm8001/pm80xx_hwi.c | 14 +++++++-------
include/scsi/libsas.h | 3 +++
11 files changed, 38 insertions(+), 34 deletions(-)

diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c
index 71d18f607dae..a1d6b906c280 100644
--- a/drivers/scsi/aic94xx/aic94xx_task.c
+++ b/drivers/scsi/aic94xx/aic94xx_task.c
@@ -205,7 +205,7 @@ static void asd_task_tasklet_complete(struct asd_ascb *ascb,
switch (opcode) {
case TC_NO_ERROR:
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
break;
case TC_UNDERRUN:
ts->resp = SAS_TASK_COMPLETE;
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index e7c6cb4c1556..edd3f18b4bd2 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -2566,7 +2566,7 @@ static void isci_request_handle_controller_specific_errors(
if (!idev)
*status_ptr = SAS_DEVICE_UNKNOWN;
else
- *status_ptr = SAM_STAT_TASK_ABORTED;
+ *status_ptr = __SAM_STAT_TASK_ABORTED;

clear_bit(IREQ_COMPLETE_IN_TARGET, &request->flags);
}
@@ -2696,7 +2696,7 @@ static void isci_request_handle_controller_specific_errors(
default:
/* Task in the target is not done. */
*response_ptr = SAS_TASK_UNDELIVERED;
- *status_ptr = SAM_STAT_TASK_ABORTED;
+ *status_ptr = __SAM_STAT_TASK_ABORTED;

if (task->task_proto == SAS_PROTOCOL_SMP)
set_bit(IREQ_COMPLETE_IN_TARGET, &request->flags);
@@ -2719,7 +2719,7 @@ static void isci_process_stp_response(struct sas_task *task, struct dev_to_host_
if (ac_err_mask(fis->status))
ts->stat = SAS_PROTO_RESPONSE;
else
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;

ts->resp = SAS_TASK_COMPLETE;
}
@@ -2782,7 +2782,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost,
case SCI_IO_SUCCESS_IO_DONE_EARLY:

response = SAS_TASK_COMPLETE;
- status = SAM_STAT_GOOD;
+ status = __SAM_STAT_GOOD;
set_bit(IREQ_COMPLETE_IN_TARGET, &request->flags);

if (completion_status == SCI_IO_SUCCESS_IO_DONE_EARLY) {
@@ -2852,7 +2852,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost,

/* Fail the I/O. */
response = SAS_TASK_UNDELIVERED;
- status = SAM_STAT_TASK_ABORTED;
+ status = __SAM_STAT_TASK_ABORTED;

clear_bit(IREQ_COMPLETE_IN_TARGET, &request->flags);
break;
diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c
index 62062ed6cd9a..855a35f963dd 100644
--- a/drivers/scsi/isci/task.c
+++ b/drivers/scsi/isci/task.c
@@ -160,7 +160,7 @@ int isci_task_execute_task(struct sas_task *task, gfp_t gfp_flags)

isci_task_refuse(ihost, task,
SAS_TASK_UNDELIVERED,
- SAM_STAT_TASK_ABORTED);
+ __SAM_STAT_TASK_ABORTED);
} else {
task->task_state_flags |= SAS_TASK_AT_INITIATOR;
spin_unlock_irqrestore(&task->task_state_lock, flags);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index c6f527d62a00..0465103265b2 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -116,8 +116,9 @@ static void sas_ata_task_done(struct sas_task *task)
}
}

- if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD ||
- ((stat->stat == SAM_STAT_CHECK_CONDITION &&
+ if (stat->stat == SAS_PROTO_RESPONSE ||
+ stat->stat == __SAM_STAT_GOOD ||
+ ((stat->stat == __SAM_STAT_CHECK_CONDITION &&
dev->sata_dev.class == ATA_DEV_ATAPI))) {
memcpy(dev->sata_dev.fis, resp->ending_fis, ATA_RESP_FIS_SIZE);

diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 6d583e8c403a..d0c93575b6d7 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -101,7 +101,7 @@ static int smp_execute_task_sg(struct domain_device *dev,
}
}
if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAM_STAT_GOOD) {
+ task->task_status.stat == __SAM_STAT_GOOD) {
res = 0;
break;
}
diff --git a/drivers/scsi/libsas/sas_task.c b/drivers/scsi/libsas/sas_task.c
index e2d42593ce52..017fd3321915 100644
--- a/drivers/scsi/libsas/sas_task.c
+++ b/drivers/scsi/libsas/sas_task.c
@@ -20,7 +20,7 @@ void sas_ssp_task_response(struct device *dev, struct sas_task *task,
else if (iu->datapres == 1)
tstat->stat = iu->resp_data[3];
else if (iu->datapres == 2) {
- tstat->stat = SAM_STAT_CHECK_CONDITION;
+ tstat->stat = __SAM_STAT_CHECK_CONDITION;
tstat->buf_valid_size =
min_t(int, SAS_STATUS_BUF_SIZE,
be32_to_cpu(iu->sense_data_len));
@@ -32,7 +32,7 @@ void sas_ssp_task_response(struct device *dev, struct sas_task *task,
}
else
/* when datapres contains corrupt/unknown value... */
- tstat->stat = SAM_STAT_CHECK_CONDITION;
+ tstat->stat = __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 1acea528f27f..276b2b3cd638 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1314,7 +1314,7 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev,
}

if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAM_STAT_GOOD) {
+ task->task_status.stat == __SAM_STAT_GOOD) {
res = TMF_RESP_FUNC_COMPLETE;
break;
}
@@ -1764,7 +1764,7 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
case SAS_PROTOCOL_SSP:
/* hw says status == 0, datapres == 0 */
if (rx_desc & RXQ_GOOD) {
- tstat->stat = SAM_STAT_GOOD;
+ tstat->stat = __SAM_STAT_GOOD;
tstat->resp = SAS_TASK_COMPLETE;
}
/* response frame present */
@@ -1773,12 +1773,12 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
sizeof(struct mvs_err_info);
sas_ssp_task_response(mvi->dev, task, iu);
} else
- tstat->stat = SAM_STAT_CHECK_CONDITION;
+ tstat->stat = __SAM_STAT_CHECK_CONDITION;
break;

case SAS_PROTOCOL_SMP: {
struct scatterlist *sg_resp = &task->smp_task.smp_resp;
- tstat->stat = SAM_STAT_GOOD;
+ tstat->stat = __SAM_STAT_GOOD;
to = kmap_atomic(sg_page(sg_resp));
memcpy(to + sg_resp->offset,
slot->response + sizeof(struct mvs_err_info),
@@ -1795,7 +1795,7 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
}

default:
- tstat->stat = SAM_STAT_CHECK_CONDITION;
+ tstat->stat = __SAM_STAT_CHECK_CONDITION;
break;
}
if (!slot->port->port_attached) {
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index ecd06d2d7e81..08d1935d5bc6 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1930,7 +1930,7 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
param);
if (param == 0) {
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
} else {
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_PROTO_RESPONSE;
@@ -2390,7 +2390,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
if (param == 0) {
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
/* check if response is for SEND READ LOG */
if (pm8001_dev &&
(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
@@ -2912,7 +2912,7 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
case IO_SUCCESS:
pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
if (pm8001_dev)
atomic_dec(&pm8001_dev->running_req);
break;
@@ -2939,17 +2939,17 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
case IO_ERROR_HW_TIMEOUT:
pm8001_dbg(pm8001_ha, IO, "IO_ERROR_HW_TIMEOUT\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_BUSY;
+ ts->stat = __SAM_STAT_BUSY;
break;
case IO_XFER_ERROR_BREAK:
pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_BUSY;
+ ts->stat = __SAM_STAT_BUSY;
break;
case IO_XFER_ERROR_PHY_NOT_READY:
pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_BUSY;
+ ts->stat = __SAM_STAT_BUSY;
break;
case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
pm8001_dbg(pm8001_ha, IO,
@@ -3710,7 +3710,7 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
case IO_SUCCESS:
pm8001_dbg(pm8001_ha, EH, "IO_SUCCESS\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
break;
case IO_NOT_VALID:
pm8001_dbg(pm8001_ha, EH, "IO_NOT_VALID\n");
@@ -4355,7 +4355,7 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,

spin_lock_irqsave(&task->task_state_lock, flags);
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
task->task_state_flags |= SAS_TASK_STATE_DONE;
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index d28af413b93a..6c3801455277 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -753,7 +753,7 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
}

if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAM_STAT_GOOD) {
+ task->task_status.stat == __SAM_STAT_GOOD) {
res = TMF_RESP_FUNC_COMPLETE;
break;
}
@@ -838,7 +838,7 @@ pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha,
}

if (task->task_status.resp == SAS_TASK_COMPLETE &&
- task->task_status.stat == SAM_STAT_GOOD) {
+ task->task_status.stat == __SAM_STAT_GOOD) {
res = TMF_RESP_FUNC_COMPLETE;
break;

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 4e980830f9f5..d3d58b40c472 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -1952,7 +1952,7 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
param);
if (param == 0) {
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
} else {
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_PROTO_RESPONSE;
@@ -2487,7 +2487,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
if (param == 0) {
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
/* check if response is for SEND READ LOG */
if (pm8001_dev &&
(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
@@ -3042,7 +3042,7 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
case IO_SUCCESS:
pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
if (pm8001_dev)
atomic_dec(&pm8001_dev->running_req);
if (pm8001_ha->smp_exp_mode == SMP_DIRECT) {
@@ -3084,17 +3084,17 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
case IO_ERROR_HW_TIMEOUT:
pm8001_dbg(pm8001_ha, IO, "IO_ERROR_HW_TIMEOUT\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_BUSY;
+ ts->stat = __SAM_STAT_BUSY;
break;
case IO_XFER_ERROR_BREAK:
pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_BUSY;
+ ts->stat = __SAM_STAT_BUSY;
break;
case IO_XFER_ERROR_PHY_NOT_READY:
pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_BUSY;
+ ts->stat = __SAM_STAT_BUSY;
break;
case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
pm8001_dbg(pm8001_ha, IO,
@@ -4699,7 +4699,7 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,

spin_lock_irqsave(&task->task_state_lock, flags);
ts->resp = SAS_TASK_COMPLETE;
- ts->stat = SAM_STAT_GOOD;
+ ts->stat = __SAM_STAT_GOOD;
task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
task->task_state_flags |= SAS_TASK_STATE_DONE;
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 9271d7a49b90..9b17f7c8c314 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -477,6 +477,9 @@ enum exec_status {
/* The SAM_STAT_.. codes fit in the lower 6 bits, alias some of
* them here to silence 'case value not in enumerated type' warnings
*/
+ __SAM_STAT_GOOD = SAM_STAT_GOOD,
+ __SAM_STAT_BUSY = SAM_STAT_BUSY,
+ __SAM_STAT_TASK_ABORTED = SAM_STAT_TASK_ABORTED,
__SAM_STAT_CHECK_CONDITION = SAM_STAT_CHECK_CONDITION,

SAS_DEV_NO_RESPONSE = 0x80,