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net/mlx5e: Fix enabling sriov while tc nic rules are offloaded

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There is a total of four 4M entries flow tables. In sriov disabled
mode, ct, ct_nat and post_act take three of them. When adding the
first tc nic rule in this mode, it will take another 4M table
for the tc <chain,prio> table. If user then enables sriov, the legacy
flow table tries to take another 4M and fails, and so enablement fails.

To fix that, have legacy fdb take the next available maximum
size from the fs ft pool.

Fixes: 4a98544d18 ("net/mlx5: Move chains ft pool to be used by all firmware steering")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Paul Blakey
2022-06-22 13:11:18 +03:00
committed by Saeed Mahameed
parent 2ec6cf9b74
commit 0c9d876545
1 changed files with 3 additions and 2 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c
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@@ -11,6 +11,7 @@
#include "mlx5_core.h"
#include "eswitch.h"
#include "fs_core.h"
#include "fs_ft_pool.h"
#include "esw/qos.h"
enum {
@@ -95,8 +96,7 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw)
if (!flow_group_in)
return -ENOMEM;
table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
ft_attr.max_fte = table_size;
ft_attr.max_fte = POOL_NEXT_SIZE;
ft_attr.prio = LEGACY_FDB_PRIO;
fdb = mlx5_create_flow_table(root_ns, &ft_attr);
if (IS_ERR(fdb)) {
@@ -105,6 +105,7 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw)
goto out;
}
esw->fdb_table.legacy.fdb = fdb;
table_size = fdb->max_fte;
/* Addresses group : Full match unicast/multicast addresses */
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,