From: Viswas G <Viswas.G@microsemi.com>
Date: Wed, 18 Oct 2017 11:39:10 +0530
Subject: scsi: pm80xx: tag allocation for phy control request.
Patch-mainline: v4.15-rc1
Git-commit: 25c6edbde2946a5be57111a701a0f4fd06adf1ae
References: FATE#322890, bsc#1049518

tag is taken from the tag pool instead of using the hardcoded tag
value(1).

Signed-off-by: Deepak Ukey <deepak.ukey@microsemi.com>
Signed-off-by: Viswas G <Viswas.G@microsemi.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/scsi/pm8001/pm8001_hwi.c |    3 +++
 drivers/scsi/pm8001/pm80xx_hwi.c |   11 +++++++----
 2 files changed, 10 insertions(+), 4 deletions(-)

--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3198,11 +3198,13 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_h
 
 int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
 {
+	u32 tag;
 	struct local_phy_ctl_resp *pPayload =
 		(struct local_phy_ctl_resp *)(piomb + 4);
 	u32 status = le32_to_cpu(pPayload->status);
 	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
 	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
+	tag = le32_to_cpu(pPayload->tag);
 	if (status != 0) {
 		PM8001_MSG_DBG(pm8001_ha,
 			pm8001_printk("%x phy execute %x phy op failed!\n",
@@ -3211,6 +3213,7 @@ int pm8001_mpi_local_phy_ctl(struct pm80
 		PM8001_MSG_DBG(pm8001_ha,
 			pm8001_printk("%x phy execute %x phy op success!\n",
 			phy_id, phy_op));
+	pm8001_tag_free(pm8001_ha, tag);
 	return 0;
 }
 
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -4500,17 +4500,20 @@ static int pm80xx_chip_reg_dev_req(struc
 static int pm80xx_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
 	u32 phyId, u32 phy_op)
 {
+	u32 tag;
+	int rc;
 	struct local_phy_ctl_req payload;
 	struct inbound_queue_table *circularQ;
-	int ret;
 	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
 	memset(&payload, 0, sizeof(payload));
+	rc = pm8001_tag_alloc(pm8001_ha, &tag);
+	if (rc)
+		return rc;
 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
-	payload.tag = cpu_to_le32(1);
+	payload.tag = cpu_to_le32(tag);
 	payload.phyop_phyid =
 		cpu_to_le32(((phy_op & 0xFF) << 8) | (phyId & 0xFF));
-	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
-	return ret;
+	return pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
 }
 
 static u32 pm80xx_chip_is_our_interupt(struct pm8001_hba_info *pm8001_ha)