net: hns3: add querying and setting fec llrs mode from firmware

This patch supports llrs fec mode in speed 200G for some new devices, and
suppoprts querying llrs fec ability from firmware.

Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 22 insertions, 1 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 91a28c22ad28..d7754b180f53 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -223,6 +223,7 @@ enum hnae3_fec_mode {
 	HNAE3_FEC_AUTO = 0,
 	HNAE3_FEC_BASER,
 	HNAE3_FEC_RS,
+	HNAE3_FEC_LLRS,
 	HNAE3_FEC_USER_DEF,
 };
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
index 701d6373020c..f9bd3fc969c5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
@@ -91,6 +91,7 @@ int hclge_comm_firmware_compat_config(struct hnae3_ae_dev *ae_dev,
 			hnae3_set_bit(compat, HCLGE_COMM_PHY_IMP_EN_B, 1);
 		hnae3_set_bit(compat, HCLGE_COMM_MAC_STATS_EXT_EN_B, 1);
 		hnae3_set_bit(compat, HCLGE_COMM_SYNC_RX_RING_HEAD_EN_B, 1);
+		hnae3_set_bit(compat, HCLGE_COMM_LLRS_FEC_EN_B, 1);
 
 		req->compat = cpu_to_le32(compat);
 	}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
index dec0b9b422b4..8aaa5fdfa2f6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
@@ -20,6 +20,7 @@
 #define HCLGE_COMM_PHY_IMP_EN_B			2
 #define HCLGE_COMM_MAC_STATS_EXT_EN_B		3
 #define HCLGE_COMM_SYNC_RX_RING_HEAD_EN_B	4
+#define HCLGE_COMM_LLRS_FEC_EN_B		5
 
 #define hclge_comm_dev_phy_imp_supported(ae_dev) \
 	test_bit(HNAE3_DEV_SUPPORT_PHY_IMP_B, (ae_dev)->caps)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 4c7988e308a2..82a48ec20618 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -1621,6 +1621,8 @@ static unsigned int loc_to_eth_fec(u8 loc_fec)
 		eth_fec |= ETHTOOL_FEC_AUTO;
 	if (loc_fec & BIT(HNAE3_FEC_RS))
 		eth_fec |= ETHTOOL_FEC_RS;
+	if (loc_fec & BIT(HNAE3_FEC_LLRS))
+		eth_fec |= ETHTOOL_FEC_LLRS;
 	if (loc_fec & BIT(HNAE3_FEC_BASER))
 		eth_fec |= ETHTOOL_FEC_BASER;
 
@@ -1643,6 +1645,8 @@ static unsigned int eth_to_loc_fec(unsigned int eth_fec)
 		loc_fec |= BIT(HNAE3_FEC_AUTO);
 	if (eth_fec & ETHTOOL_FEC_RS)
 		loc_fec |= BIT(HNAE3_FEC_RS);
+	if (eth_fec & ETHTOOL_FEC_LLRS)
+		loc_fec |= BIT(HNAE3_FEC_LLRS);
 	if (eth_fec & ETHTOOL_FEC_BASER)
 		loc_fec |= BIT(HNAE3_FEC_BASER);
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 075f50071f66..489a87e9ecb4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -360,6 +360,7 @@ struct hclge_sfp_info_cmd {
 #define HCLGE_MAC_FEC_OFF		0
 #define HCLGE_MAC_FEC_BASER		1
 #define HCLGE_MAC_FEC_RS		2
+#define HCLGE_MAC_FEC_LLRS		3
 struct hclge_config_fec_cmd {
 	u8 fec_mode;
 	u8 default_config;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 039551a3e660..5cc19ff56121 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1007,6 +1007,7 @@ static void hclge_update_fec_support(struct hclge_mac *mac)
 {
 	linkmode_clear_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, mac->supported);
 	linkmode_clear_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, mac->supported);
+	linkmode_clear_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT, mac->supported);
 
 	if (mac->fec_ability & BIT(HNAE3_FEC_BASER))
 		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
@@ -1014,6 +1015,9 @@ static void hclge_update_fec_support(struct hclge_mac *mac)
 	if (mac->fec_ability & BIT(HNAE3_FEC_RS))
 		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
 				 mac->supported);
+	if (mac->fec_ability & BIT(HNAE3_FEC_LLRS))
+		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT,
+				 mac->supported);
 }
 
 static void hclge_convert_setting_sr(u16 speed_ability,
@@ -1131,9 +1135,12 @@ static void hclge_convert_setting_fec(struct hclge_mac *mac)
 			BIT(HNAE3_FEC_AUTO);
 		break;
 	case HCLGE_MAC_SPEED_100G:
-	case HCLGE_MAC_SPEED_200G:
 		mac->fec_ability = BIT(HNAE3_FEC_RS) | BIT(HNAE3_FEC_AUTO);
 		break;
+	case HCLGE_MAC_SPEED_200G:
+		mac->fec_ability = BIT(HNAE3_FEC_RS) | BIT(HNAE3_FEC_AUTO) |
+				   BIT(HNAE3_FEC_LLRS);
+		break;
 	default:
 		mac->fec_ability = 0;
 		break;
@@ -2756,6 +2763,9 @@ static int hclge_set_fec_hw(struct hclge_dev *hdev, u32 fec_mode)
 	if (fec_mode & BIT(HNAE3_FEC_RS))
 		hnae3_set_field(req->fec_mode, HCLGE_MAC_CFG_FEC_MODE_M,
 				HCLGE_MAC_CFG_FEC_MODE_S, HCLGE_MAC_FEC_RS);
+	if (fec_mode & BIT(HNAE3_FEC_LLRS))
+		hnae3_set_field(req->fec_mode, HCLGE_MAC_CFG_FEC_MODE_M,
+				HCLGE_MAC_CFG_FEC_MODE_S, HCLGE_MAC_FEC_LLRS);
 	if (fec_mode & BIT(HNAE3_FEC_BASER))
 		hnae3_set_field(req->fec_mode, HCLGE_MAC_CFG_FEC_MODE_M,
 				HCLGE_MAC_CFG_FEC_MODE_S, HCLGE_MAC_FEC_BASER);
@@ -3000,6 +3010,9 @@ static void hclge_update_fec_advertising(struct hclge_mac *mac)
 	if (mac->fec_mode & BIT(HNAE3_FEC_RS))
 		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
 				 mac->advertising);
+	else if (mac->fec_mode & BIT(HNAE3_FEC_LLRS))
+		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT,
+				 mac->advertising);
 	else if (mac->fec_mode & BIT(HNAE3_FEC_BASER))
 		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
 				 mac->advertising);