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IB/mlx5: Add support for 50Gbps per lane link modes

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Driver now supports new link modes: 50Gbps per lane support for
50G/100G/200G. This patch reads the correct field (legacy vs. extended)
based on a FW indication bit, and adds a translation function (link
modes to IB width and speed) to the new link modes.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Aya Levin 2019-02-12 22:55:46 -08:00 committed by Saeed Mahameed
parent a08b4ed137
commit 08e8676f16
1 changed files with 61 additions and 5 deletions
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64
drivers/infiniband/hw/mlx5/main.c
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@ -331,7 +331,7 @@ out:
spin_unlock(&port->mp.mpi_lock);
}
static int translate_eth_proto_oper(u32 eth_proto_oper, u8 *active_speed,
static int translate_eth_legacy_proto_oper(u32 eth_proto_oper, u8 *active_speed,
u8 *active_width)
{
switch (eth_proto_oper) {
@ -389,6 +389,61 @@ static int translate_eth_proto_oper(u32 eth_proto_oper, u8 *active_speed,
return 0;
}
static int translate_eth_ext_proto_oper(u32 eth_proto_oper, u8 *active_speed,
u8 *active_width)
{
switch (eth_proto_oper) {
case MLX5E_PROT_MASK(MLX5E_SGMII_100M):
case MLX5E_PROT_MASK(MLX5E_1000BASE_X_SGMII):
*active_width = IB_WIDTH_1X;
*active_speed = IB_SPEED_SDR;
break;
case MLX5E_PROT_MASK(MLX5E_5GBASE_R):
*active_width = IB_WIDTH_1X;
*active_speed = IB_SPEED_DDR;
break;
case MLX5E_PROT_MASK(MLX5E_10GBASE_XFI_XAUI_1):
*active_width = IB_WIDTH_1X;
*active_speed = IB_SPEED_QDR;
break;
case MLX5E_PROT_MASK(MLX5E_40GBASE_XLAUI_4_XLPPI_4):
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_QDR;
break;
case MLX5E_PROT_MASK(MLX5E_25GAUI_1_25GBASE_CR_KR):
*active_width = IB_WIDTH_1X;
*active_speed = IB_SPEED_EDR;
break;
case MLX5E_PROT_MASK(MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2):
case MLX5E_PROT_MASK(MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR):
*active_width = IB_WIDTH_1X;
*active_speed = IB_SPEED_HDR;
break;
case MLX5E_PROT_MASK(MLX5E_100GAUI_2_100GBASE_CR2_KR2):
*active_width = IB_WIDTH_2X;
*active_speed = IB_SPEED_HDR;
break;
case MLX5E_PROT_MASK(MLX5E_200GAUI_4_200GBASE_CR4_KR4):
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_HDR;
break;
default:
return -EINVAL;
}
return 0;
}
static int translate_eth_proto_oper(u32 eth_proto_oper, u8 *active_speed,
u8 *active_width, bool ext)
{
return ext ?
translate_eth_ext_proto_oper(eth_proto_oper, active_speed,
active_width) :
translate_eth_legacy_proto_oper(eth_proto_oper, active_speed,
active_width);
}
static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
struct ib_port_attr *props)
{
@ -401,6 +456,7 @@ static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
u16 qkey_viol_cntr;
u32 eth_prot_oper;
u8 mdev_port_num;
bool ext;
int err;
mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num);
@ -421,14 +477,14 @@ static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
mdev_port_num);
if (err)
goto out;
eth_prot_oper = MLX5_GET_ETH_PROTO(ptys_reg, out, false,
eth_proto_oper);
ext = MLX5_CAP_PCAM_FEATURE(dev->mdev, ptys_extended_ethernet);
eth_prot_oper = MLX5_GET_ETH_PROTO(ptys_reg, out, ext, eth_proto_oper);
props->active_width = IB_WIDTH_4X;
props->active_speed = IB_SPEED_QDR;
translate_eth_proto_oper(eth_prot_oper, &props->active_speed,
&props->active_width);
&props->active_width, ext);
props->port_cap_flags |= IB_PORT_CM_SUP;
props->ip_gids = true;