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mlxsw: spectrum_buffers: Forbid changing threshold type of first egress pool

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Multicast packets have three egress quotas:
* Per egress port
* Per egress port and traffic class
* Per switch priority

The limits on the switch priority are not exposed to the user and
specified as dynamic threshold on the first egress pool.

Forbid changing the threshold type of the first egress pool so that
these limits are always valid.

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 12:08:47 +00:00 • committed by David S. Miller
parent cce7acca8a
commit 51e15a4978
1 changed files with 4 additions and 4 deletions
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8
drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
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@ -421,8 +421,8 @@ static const struct mlxsw_sp_sb_pr mlxsw_sp1_sb_prs[] = {
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
MLXSW_SP1_SB_PR_INGRESS_MNG_SIZE),
/* Egress pools. */
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
MLXSW_SP1_SB_PR_EGRESS_SIZE),
MLXSW_SP_SB_PR_EXT(MLXSW_REG_SBPR_MODE_DYNAMIC,
MLXSW_SP1_SB_PR_EGRESS_SIZE, true, false),
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
@ -443,8 +443,8 @@ static const struct mlxsw_sp_sb_pr mlxsw_sp2_sb_prs[] = {
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
MLXSW_SP2_SB_PR_INGRESS_MNG_SIZE),
/* Egress pools. */
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
MLXSW_SP2_SB_PR_EGRESS_SIZE),
MLXSW_SP_SB_PR_EXT(MLXSW_REG_SBPR_MODE_DYNAMIC,
MLXSW_SP2_SB_PR_EGRESS_SIZE, true, false),
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_STATIC, 0),
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_STATIC, 0),
MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_STATIC, 0),