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Message-ID: <1643110372-85470-9-git-send-email-john.garry@huawei.com>
Date:   Tue, 25 Jan 2022 19:32:44 +0800
From:   John Garry <john.garry@...wei.com>
To:     <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>,
        <artur.paszkiewicz@...el.com>, <jinpu.wang@...ud.ionos.com>,
        <chenxiang66@...ilicon.com>, <Ajish.Koshy@...rochip.com>
CC:     <yanaijie@...wei.com>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <linuxarm@...wei.com>, <liuqi115@...wei.com>,
        <Viswas.G@...rochip.com>, <damien.lemoal@...nsource.wdc.com>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH 08/16] scsi: libsas: Add sas_execute_ssp_tmf()

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@...wei.com>
---
 drivers/scsi/libsas/sas_scsi_host.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 93ca6da63104..cfdf4a031be0 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -938,6 +938,11 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,
 		task->dev = device;
 		task->task_proto = device->tproto;
 
+		if (dev_is_sata(device)) {
+		} else {
+			memcpy(&task->ssp_task, parameter, para_len);
+		}
+
 		task->task_done = sas_task_internal_done;
 		task->tmf = tmf;
 
@@ -1023,6 +1028,21 @@ 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

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