diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 097dfe4b620d..40329558d435 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -2031,6 +2031,19 @@ static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type,
 				reg_index, reg_count, write_data);
 }
 
+static void *hisi_sas_alloc_smp_req(int size)
+{
+	u8 *p;
+
+	/* The address must be 16-byte-aligned. */
+	size = ALIGN(size, ARCH_DMA_MINALIGN);
+	p = kzalloc(size, GFP_KERNEL);
+	if (p)
+		p[0] = SMP_REQUEST;
+
+	return p;
+}
+
 static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy)
 {
 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
@@ -2130,6 +2143,7 @@ static struct sas_domain_function_template hisi_sas_transport_ops = {
 	.lldd_write_gpio	= hisi_sas_write_gpio,
 	.lldd_tmf_aborted	= hisi_sas_tmf_aborted,
 	.lldd_abort_timeout	= hisi_sas_internal_abort_timeout,
+	.lldd_alloc_smp_req	= hisi_sas_alloc_smp_req,
 };
 
 void hisi_sas_init_mem(struct hisi_hba *hisi_hba)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index a2204674b680..0fd0507f7fc6 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -141,6 +141,17 @@ static inline void *alloc_smp_req(int size)
 	return p;
 }
 
+static void *sas_alloc_smp_req(struct domain_device *dev, int size)
+{
+	struct sas_internal *i =
+		to_sas_internal(dev->port->ha->shost->transportt);
+
+	if (i->dft->lldd_alloc_smp_req)
+		return i->dft->lldd_alloc_smp_req(size);
+
+	return alloc_smp_req(size);
+}
+
 static inline void *alloc_smp_resp(int size)
 {
 	return kzalloc(size, GFP_KERNEL);
@@ -377,7 +388,7 @@ int sas_ex_phy_discover(struct domain_device *dev, int single)
 	u8   *disc_req;
 	struct smp_disc_resp *disc_resp;
 
-	disc_req = alloc_smp_req(DISCOVER_REQ_SIZE);
+	disc_req = sas_alloc_smp_req(dev, DISCOVER_REQ_SIZE);
 	if (!disc_req)
 		return -ENOMEM;
 
@@ -440,7 +451,7 @@ static int sas_ex_general(struct domain_device *dev)
 	int res;
 	int i;
 
-	rg_req = alloc_smp_req(RG_REQ_SIZE);
+	rg_req = sas_alloc_smp_req(dev, RG_REQ_SIZE);
 	if (!rg_req)
 		return -ENOMEM;
 
@@ -519,7 +530,7 @@ static int sas_ex_manuf_info(struct domain_device *dev)
 	u8 *mi_resp;
 	int res;
 
-	mi_req = alloc_smp_req(MI_REQ_SIZE);
+	mi_req = sas_alloc_smp_req(dev, MI_REQ_SIZE);
 	if (!mi_req)
 		return -ENOMEM;
 
@@ -560,7 +571,7 @@ int sas_smp_phy_control(struct domain_device *dev, int phy_id,
 	u8 *pc_resp;
 	int res;
 
-	pc_req = alloc_smp_req(PC_REQ_SIZE);
+	pc_req = sas_alloc_smp_req(dev, PC_REQ_SIZE);
 	if (!pc_req)
 		return -ENOMEM;
 
@@ -642,7 +653,7 @@ int sas_smp_get_phy_events(struct sas_phy *phy)
 	struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
 	struct domain_device *dev = sas_find_dev_by_rphy(rphy);
 
-	req = alloc_smp_req(RPEL_REQ_SIZE);
+	req = sas_alloc_smp_req(dev, RPEL_REQ_SIZE);
 	if (!req)
 		return -ENOMEM;
 
@@ -682,7 +693,7 @@ int sas_get_report_phy_sata(struct domain_device *dev, int phy_id,
 			    struct smp_rps_resp *rps_resp)
 {
 	int res;
-	u8 *rps_req = alloc_smp_req(RPS_REQ_SIZE);
+	u8 *rps_req = sas_alloc_smp_req(dev, RPS_REQ_SIZE);
 	u8 *resp = (u8 *)rps_resp;
 
 	if (!rps_req)
@@ -1344,7 +1355,7 @@ static int sas_configure_present(struct domain_device *dev, int phy_id,
 	*present = 0;
 	*index = 0;
 
-	rri_req = alloc_smp_req(RRI_REQ_SIZE);
+	rri_req = sas_alloc_smp_req(dev, RRI_REQ_SIZE);
 	if (!rri_req)
 		return -ENOMEM;
 
@@ -1412,7 +1423,7 @@ static int sas_configure_set(struct domain_device *dev, int phy_id,
 	u8 *cri_req;
 	u8 *cri_resp;
 
-	cri_req = alloc_smp_req(CRI_REQ_SIZE);
+	cri_req = sas_alloc_smp_req(dev, CRI_REQ_SIZE);
 	if (!cri_req)
 		return -ENOMEM;
 
@@ -1627,7 +1638,7 @@ static int sas_get_phy_discover(struct domain_device *dev,
 	int res;
 	u8 *disc_req;
 
-	disc_req = alloc_smp_req(DISCOVER_REQ_SIZE);
+	disc_req = sas_alloc_smp_req(dev, DISCOVER_REQ_SIZE);
 	if (!disc_req)
 		return -ENOMEM;
 
@@ -1723,7 +1734,7 @@ static int sas_get_ex_change_count(struct domain_device *dev, int *ecc)
 	u8  *rg_req;
 	struct smp_rg_resp  *rg_resp;
 
-	rg_req = alloc_smp_req(RG_REQ_SIZE);
+	rg_req = sas_alloc_smp_req(dev, RG_REQ_SIZE);
 	if (!rg_req)
 		return -ENOMEM;
 
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index f5257103fdb6..2e6e5f6e50db 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -670,6 +670,9 @@ struct sas_domain_function_template {
 	/* GPIO support */
 	int (*lldd_write_gpio)(struct sas_ha_struct *, u8 reg_type,
 			       u8 reg_index, u8 reg_count, u8 *write_data);
+
+	/* Allocation for SMP request */
+	void *(*lldd_alloc_smp_req)(int size);
 };
 
 extern int sas_register_ha(struct sas_ha_struct *);
