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mlxsw: spectrum_buffers: Adjust CPU port shared buffer egress quotas

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Switch the CPU port to use the new dedicated egress pool instead the
previously used egress pool which was shared with normal front panel
ports.

Add per-port quotas for the amount of traffic that can be buffered for
the CPU port and also adjust the per-{port, TC} quotas.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2019-04-22 12:08:56 +00:00 committed by David S. Miller
parent 6d28725c4d
commit 7a1ff9f45b
1 changed files with 35 additions and 7 deletions
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42
drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
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@ -108,6 +108,7 @@ struct mlxsw_sp_sb_vals {
unsigned int pool_count;
const struct mlxsw_sp_sb_pool_des *pool_dess;
const struct mlxsw_sp_sb_pm *pms;
const struct mlxsw_sp_sb_pm *pms_cpu;
const struct mlxsw_sp_sb_pr *prs;
const struct mlxsw_sp_sb_mm *mms;
const struct mlxsw_sp_sb_cm *cms_ingress;
@ -581,17 +582,17 @@ static const struct mlxsw_sp_sb_cm mlxsw_sp2_sb_cms_egress[] = {
MLXSW_SP_SB_CM_EGR(1, 0xff),
};
#define MLXSW_SP_CPU_PORT_SB_CM MLXSW_SP_SB_CM(0, 0, MLXSW_SP_SB_POOL_EGR)
#define MLXSW_SP_CPU_PORT_SB_CM MLXSW_SP_SB_CM(0, 0, MLXSW_SP_SB_POOL_EGR_CPU)
static const struct mlxsw_sp_sb_cm mlxsw_sp_cpu_port_sb_cms[] = {
MLXSW_SP_CPU_PORT_SB_CM,
MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, MLXSW_SP_SB_POOL_EGR),
MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, MLXSW_SP_SB_POOL_EGR),
MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, MLXSW_SP_SB_POOL_EGR),
MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, MLXSW_SP_SB_POOL_EGR),
MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, MLXSW_SP_SB_POOL_EGR),
MLXSW_SP_SB_CM(1000, 8, MLXSW_SP_SB_POOL_EGR_CPU),
MLXSW_SP_SB_CM(1000, 8, MLXSW_SP_SB_POOL_EGR_CPU),
MLXSW_SP_SB_CM(1000, 8, MLXSW_SP_SB_POOL_EGR_CPU),
MLXSW_SP_SB_CM(1000, 8, MLXSW_SP_SB_POOL_EGR_CPU),
MLXSW_SP_SB_CM(1000, 8, MLXSW_SP_SB_POOL_EGR_CPU),
MLXSW_SP_CPU_PORT_SB_CM,
MLXSW_SP_SB_CM(MLXSW_PORT_MAX_MTU, 0, MLXSW_SP_SB_POOL_EGR),
MLXSW_SP_SB_CM(1000, 8, MLXSW_SP_SB_POOL_EGR_CPU),
MLXSW_SP_CPU_PORT_SB_CM,
MLXSW_SP_CPU_PORT_SB_CM,
MLXSW_SP_CPU_PORT_SB_CM,
@ -729,6 +730,21 @@ static const struct mlxsw_sp_sb_pm mlxsw_sp2_sb_pms[] = {
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
};
/* Order according to mlxsw_sp*_sb_pool_dess */
static const struct mlxsw_sp_sb_pm mlxsw_sp_cpu_port_sb_pms[] = {
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, 90000),
MLXSW_SP_SB_PM(0, 0),
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MAX),
};
static int mlxsw_sp_sb_pms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port,
const struct mlxsw_sp_sb_pm *pms,
bool skip_ingress)
@ -765,6 +781,12 @@ static int mlxsw_sp_port_sb_pms_init(struct mlxsw_sp_port *mlxsw_sp_port)
mlxsw_sp->sb_vals->pms, false);
}
static int mlxsw_sp_cpu_port_sb_pms_init(struct mlxsw_sp *mlxsw_sp)
{
return mlxsw_sp_sb_pms_init(mlxsw_sp, 0, mlxsw_sp->sb_vals->pms_cpu,
true);
}
#define MLXSW_SP_SB_MM(_min_buff, _max_buff) \
{ \
.min_buff = _min_buff, \
@ -836,6 +858,7 @@ const struct mlxsw_sp_sb_vals mlxsw_sp1_sb_vals = {
.pool_count = ARRAY_SIZE(mlxsw_sp1_sb_pool_dess),
.pool_dess = mlxsw_sp1_sb_pool_dess,
.pms = mlxsw_sp1_sb_pms,
.pms_cpu = mlxsw_sp_cpu_port_sb_pms,
.prs = mlxsw_sp1_sb_prs,
.mms = mlxsw_sp_sb_mms,
.cms_ingress = mlxsw_sp1_sb_cms_ingress,
@ -851,6 +874,7 @@ const struct mlxsw_sp_sb_vals mlxsw_sp2_sb_vals = {
.pool_count = ARRAY_SIZE(mlxsw_sp2_sb_pool_dess),
.pool_dess = mlxsw_sp2_sb_pool_dess,
.pms = mlxsw_sp2_sb_pms,
.pms_cpu = mlxsw_sp_cpu_port_sb_pms,
.prs = mlxsw_sp2_sb_prs,
.mms = mlxsw_sp_sb_mms,
.cms_ingress = mlxsw_sp2_sb_cms_ingress,
@ -900,6 +924,9 @@ int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp)
err = mlxsw_sp_cpu_port_sb_cms_init(mlxsw_sp);
if (err)
goto err_sb_cpu_port_sb_cms_init;
err = mlxsw_sp_cpu_port_sb_pms_init(mlxsw_sp);
if (err)
goto err_sb_cpu_port_pms_init;
err = mlxsw_sp_sb_mms_init(mlxsw_sp);
if (err)
goto err_sb_mms_init;
@ -917,6 +944,7 @@ int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp)
err_devlink_sb_register:
err_sb_mms_init:
err_sb_cpu_port_pms_init:
err_sb_cpu_port_sb_cms_init:
err_sb_prs_init:
mlxsw_sp_sb_ports_fini(mlxsw_sp);