6.6-stable review patch. If anyone has any objections, please let me know.
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From: Patrisious Haddad phaddad@nvidia.com
[ Upstream commit 80df31f384b4146a62a01b3d4beb376cc7b9a89e ]
Change POOL_NEXT_SIZE define value from 0 to BIT(30), since this define is used to request the available maximum sized flow table, and zero doesn't make sense for it, whereas some places in the driver use zero explicitly expecting the smallest table size possible but instead due to this define they end up allocating the biggest table size unawarely.
In addition move the definition to "include/linux/mlx5/fs.h" to expose the define to IB driver as well, while appropriately renaming it.
Signed-off-by: Patrisious Haddad phaddad@nvidia.com Reviewed-by: Maor Gottlieb maorg@nvidia.com Reviewed-by: Mark Bloch mbloch@nvidia.com Signed-off-by: Tariq Toukan tariqt@nvidia.com Link: https://patch.msgid.link/20250219085808.349923-3-tariqt@nvidia.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c | 6 ++++-- drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h | 2 -- drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c | 3 ++- include/linux/mlx5/fs.h | 2 ++ 5 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c index 8587cd572da53..bdb825aa87268 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c @@ -96,7 +96,7 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw) if (!flow_group_in) return -ENOMEM;
- ft_attr.max_fte = POOL_NEXT_SIZE; + ft_attr.max_fte = MLX5_FS_MAX_POOL_SIZE; ft_attr.prio = LEGACY_FDB_PRIO; fdb = mlx5_create_flow_table(root_ns, &ft_attr); if (IS_ERR(fdb)) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c index c14590acc7726..f6abfd00d7e68 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c @@ -50,10 +50,12 @@ mlx5_ft_pool_get_avail_sz(struct mlx5_core_dev *dev, enum fs_flow_table_type tab int i, found_i = -1;
for (i = ARRAY_SIZE(FT_POOLS) - 1; i >= 0; i--) { - if (dev->priv.ft_pool->ft_left[i] && FT_POOLS[i] >= desired_size && + if (dev->priv.ft_pool->ft_left[i] && + (FT_POOLS[i] >= desired_size || + desired_size == MLX5_FS_MAX_POOL_SIZE) && FT_POOLS[i] <= max_ft_size) { found_i = i; - if (desired_size != POOL_NEXT_SIZE) + if (desired_size != MLX5_FS_MAX_POOL_SIZE) break; } } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h index 25f4274b372b5..173e312db7204 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h @@ -7,8 +7,6 @@ #include <linux/mlx5/driver.h> #include "fs_core.h"
-#define POOL_NEXT_SIZE 0 - int mlx5_ft_pool_init(struct mlx5_core_dev *dev); void mlx5_ft_pool_destroy(struct mlx5_core_dev *dev);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c index 711d14dea2485..d313cb7f0ed88 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c @@ -161,7 +161,8 @@ mlx5_chains_create_table(struct mlx5_fs_chains *chains, ft_attr.flags |= (MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT | MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
- sz = (chain == mlx5_chains_get_nf_ft_chain(chains)) ? FT_TBL_SZ : POOL_NEXT_SIZE; + sz = (chain == mlx5_chains_get_nf_ft_chain(chains)) ? + FT_TBL_SZ : MLX5_FS_MAX_POOL_SIZE; ft_attr.max_fte = sz;
/* We use chains_default_ft(chains) as the table's next_ft till diff --git a/include/linux/mlx5/fs.h b/include/linux/mlx5/fs.h index 3fb428ce7d1c7..b6b9a4dfa4fb9 100644 --- a/include/linux/mlx5/fs.h +++ b/include/linux/mlx5/fs.h @@ -40,6 +40,8 @@
#define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
+#define MLX5_FS_MAX_POOL_SIZE BIT(30) + enum mlx5_flow_destination_type { MLX5_FLOW_DESTINATION_TYPE_NONE, MLX5_FLOW_DESTINATION_TYPE_VPORT,