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mlxsw: spectrum_buffers: Further reduce pool size on Spectrum-2

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In commit e891ce1dd2 ("mlxsw: spectrum_buffers: Reduce pool size on
Spectrum-2"), pool size was reduced to mitigate a problem in port buffer
usage of ports split four ways. It turns out that this work around does not
solve the issue, and a further reduction is required.

Thus reduce the size of pool 0 by another 2.7 MiB, and round down to the
whole number of cells.

Fixes: e891ce1dd2 ("mlxsw: spectrum_buffers: Reduce pool size on Spectrum-2")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2019-07-31 09:33:15 +03:00 committed by David S. Miller
parent 28fe79000e
commit 744ad9a357
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
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@ -437,8 +437,8 @@ static const struct mlxsw_sp_sb_pr mlxsw_sp1_sb_prs[] = {
MLXSW_SP1_SB_PR_CPU_SIZE, true, false),
};
#define MLXSW_SP2_SB_PR_INGRESS_SIZE 38128752
#define MLXSW_SP2_SB_PR_EGRESS_SIZE 38128752
#define MLXSW_SP2_SB_PR_INGRESS_SIZE 35297568
#define MLXSW_SP2_SB_PR_EGRESS_SIZE 35297568
#define MLXSW_SP2_SB_PR_CPU_SIZE (256 * 1000)
/* Order according to mlxsw_sp2_sb_pool_dess */