@@ -252,6 +252,24 @@ roc_bphy_cgx_ptp_rx_ena_dis(struct roc_bphy_cgx *roc_cgx, unsigned int lmac,
 	return roc_bphy_cgx_intf_req(roc_cgx, lmac, scr1, &scr0);
 }
 
+int
+roc_bphy_cgx_set_link_state(struct roc_bphy_cgx *roc_cgx, unsigned int lmac,
+			    bool state)
+{
+	uint64_t scr1, scr0;
+
+	if (!roc_cgx)
+		return -EINVAL;
+
+	if (!roc_bphy_cgx_lmac_exists(roc_cgx, lmac))
+		return -EINVAL;
+
+	scr1 = state ? FIELD_PREP(SCR1_ETH_CMD_ID, ETH_CMD_LINK_BRING_UP) :
+		       FIELD_PREP(SCR1_ETH_CMD_ID, ETH_CMD_LINK_BRING_DOWN);
+
+	return roc_bphy_cgx_intf_req(roc_cgx, lmac, scr1, &scr0);
+}
+
 int
 roc_bphy_cgx_get_linkinfo(struct roc_bphy_cgx *roc_cgx, unsigned int lmac,
 			  struct roc_bphy_cgx_link_info *info)

@@ -95,6 +95,8 @@ struct roc_bphy_cgx_link_info {
 __roc_api int roc_bphy_cgx_dev_init(struct roc_bphy_cgx *roc_cgx);
 __roc_api int roc_bphy_cgx_dev_fini(struct roc_bphy_cgx *roc_cgx);
 
+__roc_api int roc_bphy_cgx_set_link_state(struct roc_bphy_cgx *roc_cgx,
+					  unsigned int lmac, bool state);
 __roc_api int roc_bphy_cgx_get_linkinfo(struct roc_bphy_cgx *roc_cgx,
 					unsigned int lmac,
 					struct roc_bphy_cgx_link_info *info);

@@ -61,6 +61,8 @@ enum eth_mode {
 /* REQUEST ID types. Input to firmware */
 enum eth_cmd_id {
 	ETH_CMD_GET_LINK_STS = 4,
+	ETH_CMD_LINK_BRING_UP = 5,
+	ETH_CMD_LINK_BRING_DOWN = 6,
 	ETH_CMD_INTERNAL_LBK = 7,
 	ETH_CMD_MODE_CHANGE = 11, /* hot plug support */
 	ETH_CMD_INTF_SHUTDOWN = 12,

@@ -17,6 +17,7 @@ INTERNAL {
 	roc_bphy_cgx_ptp_rx_disable;
 	roc_bphy_cgx_ptp_rx_enable;
 	roc_bphy_cgx_set_link_mode;
+	roc_bphy_cgx_set_link_state;
 	roc_clk_freq_get;
 	roc_error_msg_get;
 	roc_idev_lmt_base_addr_get;