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Message-ID: <1d77830f6abcc4f0d57a7f845e5a6d97a75a434b.1712667750.git.petrm@nvidia.com>
Date: Tue, 9 Apr 2024 15:22:14 +0200
From: Petr Machata <petrm@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>, <netdev@...r.kernel.org>
CC: Ido Schimmel <idosch@...dia.com>, Petr Machata <petrm@...dia.com>,
<mlxsw@...dia.com>
Subject: [PATCH net-next] mlxsw: spectrum_ethtool: Add support for 100Gb/s per lane link modes
From: Ido Schimmel <idosch@...dia.com>
The Spectrum-4 ASIC supports 100Gb/s per lane link modes, but the only
one currently supported by the driver is 800Gb/s over eight lanes.
Add support for 100Gb/s over one lane, 200Gb/s over two lanes and
400Gb/s over four lanes.
Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
Signed-off-by: Petr Machata <petrm@...dia.com>
---
drivers/net/ethernet/mellanox/mlxsw/reg.h | 3 +
.../mellanox/mlxsw/spectrum_ethtool.c | 60 +++++++++++++++++++
2 files changed, 63 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 8892654c685f..8adf86a6f5cc 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -4786,8 +4786,11 @@ MLXSW_ITEM32(reg, ptys, an_status, 0x04, 28, 4);
#define MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_1_LAUI_1_50GBASE_CR_KR BIT(8)
#define MLXSW_REG_PTYS_EXT_ETH_SPEED_CAUI_4_100GBASE_CR4_KR4 BIT(9)
#define MLXSW_REG_PTYS_EXT_ETH_SPEED_100GAUI_2_100GBASE_CR2_KR2 BIT(10)
+#define MLXSW_REG_PTYS_EXT_ETH_SPEED_100GAUI_1_100GBASE_CR_KR BIT(11)
#define MLXSW_REG_PTYS_EXT_ETH_SPEED_200GAUI_4_200GBASE_CR4_KR4 BIT(12)
+#define MLXSW_REG_PTYS_EXT_ETH_SPEED_200GAUI_2_200GBASE_CR2_KR2 BIT(13)
#define MLXSW_REG_PTYS_EXT_ETH_SPEED_400GAUI_8 BIT(15)
+#define MLXSW_REG_PTYS_EXT_ETH_SPEED_400GAUI_4_400GBASE_CR4_KR4 BIT(16)
#define MLXSW_REG_PTYS_EXT_ETH_SPEED_800GAUI_8 BIT(19)
/* reg_ptys_ext_eth_proto_cap
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
index 0f29e9c19411..a755b0a901d3 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
@@ -1648,6 +1648,18 @@ mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2[] = {
#define MLXSW_SP2_MASK_ETHTOOL_100GAUI_2_100GBASE_CR2_KR2_LEN \
ARRAY_SIZE(mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2)
+static const enum ethtool_link_mode_bit_indices
+mlxsw_sp2_mask_ethtool_100gaui_1_100gbase_cr_kr[] = {
+ ETHTOOL_LINK_MODE_100000baseKR_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseSR_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseLR_ER_FR_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseCR_Full_BIT,
+ ETHTOOL_LINK_MODE_100000baseDR_Full_BIT,
+};
+
+#define MLXSW_SP2_MASK_ETHTOOL_100GAUI_1_100GBASE_CR_KR_LEN \
+ ARRAY_SIZE(mlxsw_sp2_mask_ethtool_100gaui_1_100gbase_cr_kr)
+
static const enum ethtool_link_mode_bit_indices
mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4[] = {
ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT,
@@ -1660,6 +1672,18 @@ mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4[] = {
#define MLXSW_SP2_MASK_ETHTOOL_200GAUI_4_200GBASE_CR4_KR4_LEN \
ARRAY_SIZE(mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4)
+static const enum ethtool_link_mode_bit_indices
+mlxsw_sp2_mask_ethtool_200gaui_2_200gbase_cr2_kr2[] = {
+ ETHTOOL_LINK_MODE_200000baseKR2_Full_BIT,
+ ETHTOOL_LINK_MODE_200000baseSR2_Full_BIT,
+ ETHTOOL_LINK_MODE_200000baseLR2_ER2_FR2_Full_BIT,
+ ETHTOOL_LINK_MODE_200000baseDR2_Full_BIT,
+ ETHTOOL_LINK_MODE_200000baseCR2_Full_BIT,
+};
+
+#define MLXSW_SP2_MASK_ETHTOOL_200GAUI_2_200GBASE_CR2_KR2_LEN \
+ ARRAY_SIZE(mlxsw_sp2_mask_ethtool_200gaui_2_200gbase_cr2_kr2)
+
static const enum ethtool_link_mode_bit_indices
mlxsw_sp2_mask_ethtool_400gaui_8[] = {
ETHTOOL_LINK_MODE_400000baseKR8_Full_BIT,
@@ -1672,6 +1696,18 @@ mlxsw_sp2_mask_ethtool_400gaui_8[] = {
#define MLXSW_SP2_MASK_ETHTOOL_400GAUI_8_LEN \
ARRAY_SIZE(mlxsw_sp2_mask_ethtool_400gaui_8)
+static const enum ethtool_link_mode_bit_indices
+mlxsw_sp2_mask_ethtool_400gaui_4_400gbase_cr4_kr4[] = {
+ ETHTOOL_LINK_MODE_400000baseKR4_Full_BIT,
+ ETHTOOL_LINK_MODE_400000baseSR4_Full_BIT,
+ ETHTOOL_LINK_MODE_400000baseLR4_ER4_FR4_Full_BIT,
+ ETHTOOL_LINK_MODE_400000baseDR4_Full_BIT,
+ ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT,
+};
+
+#define MLXSW_SP2_MASK_ETHTOOL_400GAUI_4_400GBASE_CR4_KR4_LEN \
+ ARRAY_SIZE(mlxsw_sp2_mask_ethtool_400gaui_4_400gbase_cr4_kr4)
+
static const enum ethtool_link_mode_bit_indices
mlxsw_sp2_mask_ethtool_800gaui_8[] = {
ETHTOOL_LINK_MODE_800000baseCR8_Full_BIT,
@@ -1816,6 +1852,14 @@ static const struct mlxsw_sp2_port_link_mode mlxsw_sp2_port_link_mode[] = {
.speed = SPEED_100000,
.width = 2,
},
+ {
+ .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_100GAUI_1_100GBASE_CR_KR,
+ .mask_ethtool = mlxsw_sp2_mask_ethtool_100gaui_1_100gbase_cr_kr,
+ .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_100GAUI_1_100GBASE_CR_KR_LEN,
+ .mask_sup_width = MLXSW_SP_PORT_MASK_WIDTH_1X,
+ .speed = SPEED_100000,
+ .width = 1,
+ },
{
.mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_200GAUI_4_200GBASE_CR4_KR4,
.mask_ethtool = mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4,
@@ -1825,6 +1869,14 @@ static const struct mlxsw_sp2_port_link_mode mlxsw_sp2_port_link_mode[] = {
.speed = SPEED_200000,
.width = 4,
},
+ {
+ .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_200GAUI_2_200GBASE_CR2_KR2,
+ .mask_ethtool = mlxsw_sp2_mask_ethtool_200gaui_2_200gbase_cr2_kr2,
+ .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_200GAUI_2_200GBASE_CR2_KR2_LEN,
+ .mask_sup_width = MLXSW_SP_PORT_MASK_WIDTH_2X,
+ .speed = SPEED_200000,
+ .width = 2,
+ },
{
.mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_400GAUI_8,
.mask_ethtool = mlxsw_sp2_mask_ethtool_400gaui_8,
@@ -1833,6 +1885,14 @@ static const struct mlxsw_sp2_port_link_mode mlxsw_sp2_port_link_mode[] = {
.speed = SPEED_400000,
.width = 8,
},
+ {
+ .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_400GAUI_4_400GBASE_CR4_KR4,
+ .mask_ethtool = mlxsw_sp2_mask_ethtool_400gaui_4_400gbase_cr4_kr4,
+ .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_400GAUI_4_400GBASE_CR4_KR4_LEN,
+ .mask_sup_width = MLXSW_SP_PORT_MASK_WIDTH_4X,
+ .speed = SPEED_400000,
+ .width = 4,
+ },
{
.mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_800GAUI_8,
.mask_ethtool = mlxsw_sp2_mask_ethtool_800gaui_8,
--
2.43.0
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