[PATCH v2 10/18] scsi: libsas: Add sas_execute_ssp_tmf()

John Garry
2022-02-17T15:49:19Z

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>
---
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