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mlxsw: spectrum: Initialize advertised speeds to supported speeds 

During port initialization the driver instructs the device to only
advertise speeds that can be supported by the port's current width.

Since the device now returns the supported speeds based on the port's
current width, the driver no longer needs to compute the speeds that can
be advertised.

Simplify port initialization by setting the advertised speeds to the
queried supported speeds.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2020-02-26 09:39:19 +01:00 committed by David S. Miller
parent 8a29581eb0
commit b401ff8541
2 changed files with 8 additions and 84 deletions
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86
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -2798,27 +2798,6 @@ static u32 mlxsw_sp1_to_ptys_speed(struct mlxsw_sp *mlxsw_sp, u8 width,
return ptys_proto;
}
static u32
mlxsw_sp1_to_ptys_upper_speed(struct mlxsw_sp *mlxsw_sp, u32 upper_speed)
{
u32 ptys_proto = 0;
int i;
for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
if (mlxsw_sp1_port_link_mode[i].speed <= upper_speed)
ptys_proto |= mlxsw_sp1_port_link_mode[i].mask;
}
return ptys_proto;
}
static int
mlxsw_sp1_port_speed_base(struct mlxsw_sp *mlxsw_sp, u8 local_port,
u32 *base_speed)
{
*base_speed = MLXSW_SP_PORT_BASE_SPEED_25G;
return 0;
}
static void
mlxsw_sp1_reg_ptys_eth_pack(struct mlxsw_sp *mlxsw_sp, char *payload,
u8 local_port, u32 proto_admin, bool autoneg)
@ -2843,8 +2822,6 @@ mlxsw_sp1_port_type_speed_ops = {
.from_ptys_speed_duplex = mlxsw_sp1_from_ptys_speed_duplex,
.to_ptys_advert_link = mlxsw_sp1_to_ptys_advert_link,
.to_ptys_speed = mlxsw_sp1_to_ptys_speed,
.to_ptys_upper_speed = mlxsw_sp1_to_ptys_upper_speed,
.port_speed_base = mlxsw_sp1_port_speed_base,
.reg_ptys_eth_pack = mlxsw_sp1_reg_ptys_eth_pack,
.reg_ptys_eth_unpack = mlxsw_sp1_reg_ptys_eth_unpack,
};
@ -3245,51 +3222,6 @@ static u32 mlxsw_sp2_to_ptys_speed(struct mlxsw_sp *mlxsw_sp,
return ptys_proto;
}
static u32
mlxsw_sp2_to_ptys_upper_speed(struct mlxsw_sp *mlxsw_sp, u32 upper_speed)
{
u32 ptys_proto = 0;
int i;
for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
if (mlxsw_sp2_port_link_mode[i].speed <= upper_speed)
ptys_proto |= mlxsw_sp2_port_link_mode[i].mask;
}
return ptys_proto;
}
static int
mlxsw_sp2_port_speed_base(struct mlxsw_sp *mlxsw_sp, u8 local_port,
u32 *base_speed)
{
char ptys_pl[MLXSW_REG_PTYS_LEN];
u32 eth_proto_cap;
int err;
/* In Spectrum-2, the speed of 1x can change from port to port, so query
* it from firmware.
*/
mlxsw_reg_ptys_ext_eth_pack(ptys_pl, local_port, 0, false);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
mlxsw_reg_ptys_ext_eth_unpack(ptys_pl, &eth_proto_cap, NULL, NULL);
if (eth_proto_cap &
MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_1_LAUI_1_50GBASE_CR_KR) {
*base_speed = MLXSW_SP_PORT_BASE_SPEED_50G;
return 0;
}
if (eth_proto_cap &
MLXSW_REG_PTYS_EXT_ETH_SPEED_25GAUI_1_25GBASE_CR_KR) {
*base_speed = MLXSW_SP_PORT_BASE_SPEED_25G;
return 0;
}
return -EIO;
}
static void
mlxsw_sp2_reg_ptys_eth_pack(struct mlxsw_sp *mlxsw_sp, char *payload,
u8 local_port, u32 proto_admin,
@ -3315,8 +3247,6 @@ mlxsw_sp2_port_type_speed_ops = {
.from_ptys_speed_duplex = mlxsw_sp2_from_ptys_speed_duplex,
.to_ptys_advert_link = mlxsw_sp2_to_ptys_advert_link,
.to_ptys_speed = mlxsw_sp2_to_ptys_speed,
.to_ptys_upper_speed = mlxsw_sp2_to_ptys_upper_speed,
.port_speed_base = mlxsw_sp2_port_speed_base,
.reg_ptys_eth_pack = mlxsw_sp2_reg_ptys_eth_pack,
.reg_ptys_eth_unpack = mlxsw_sp2_reg_ptys_eth_unpack,
};
@ -3530,24 +3460,24 @@ static int
mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u32 eth_proto_cap, eth_proto_admin, eth_proto_oper;
const struct mlxsw_sp_port_type_speed_ops *ops;
char ptys_pl[MLXSW_REG_PTYS_LEN];
u32 eth_proto_admin;
u32 upper_speed;
u32 base_speed;
int err;
ops = mlxsw_sp->port_type_speed_ops;
err = ops->port_speed_base(mlxsw_sp, mlxsw_sp_port->local_port,
&base_speed);
/* Set advertised speeds to supported speeds. */
ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
0, false);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
if (err)
return err;
upper_speed = base_speed * mlxsw_sp_port->mapping.width;
eth_proto_admin = ops->to_ptys_upper_speed(mlxsw_sp, upper_speed);
ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, &eth_proto_cap,
&eth_proto_admin, &eth_proto_oper);
ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
eth_proto_admin, mlxsw_sp_port->link.autoneg);
eth_proto_cap, mlxsw_sp_port->link.autoneg);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
}

6
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -33,9 +33,6 @@
#define MLXSW_SP_MID_MAX 7000
#define MLXSW_SP_PORT_BASE_SPEED_25G 25000 /* Mb/s */
#define MLXSW_SP_PORT_BASE_SPEED_50G 50000 /* Mb/s */
#define MLXSW_SP_KVD_LINEAR_SIZE 98304 /* entries */
#define MLXSW_SP_KVD_GRANULARITY 128
@ -310,9 +307,6 @@ struct mlxsw_sp_port_type_speed_ops {
u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, u8 width,
const struct ethtool_link_ksettings *cmd);
u32 (*to_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u8 width, u32 speed);
u32 (*to_ptys_upper_speed)(struct mlxsw_sp *mlxsw_sp, u32 upper_speed);
int (*port_speed_base)(struct mlxsw_sp *mlxsw_sp, u8 local_port,
u32 *base_speed);
void (*reg_ptys_eth_pack)(struct mlxsw_sp *mlxsw_sp, char *payload,
u8 local_port, u32 proto_admin, bool autoneg);
void (*reg_ptys_eth_unpack)(struct mlxsw_sp *mlxsw_sp, char *payload,