The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=04db54fe4309e896c4c80baadbcc47b171722027
commit 04db54fe4309e896c4c80baadbcc47b171722027 Author: Mark Bloch <[email protected]> AuthorDate: 2023-02-19 14:05:16 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2023-11-15 23:08:16 +0000 net/mlx5: Fix auto group size calculation Once all the large flow groups (defined by the user when the flow table is created - max_num_groups) were created, then all the following new flow groups will have only one flow table entry, even though the flow table has place to larger groups. Fix the condition to prefer large flow group. Upstream Linux commit: 97fd8da281f80e7e69e0114bc906575734d4dfaf Signed-off-by: Mark Bloch <[email protected]> Sponsored by: NVidia networking MFC after: 1 week --- sys/dev/mlx5/mlx5_core/fs_core.h | 1 + sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c | 13 ++++++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/sys/dev/mlx5/mlx5_core/fs_core.h b/sys/dev/mlx5/mlx5_core/fs_core.h index 3eae7868833f..dc619fc2d2db 100644 --- a/sys/dev/mlx5/mlx5_core/fs_core.h +++ b/sys/dev/mlx5/mlx5_core/fs_core.h @@ -97,6 +97,7 @@ struct mlx5_flow_table { struct { bool active; unsigned int max_types; + unsigned int group_size; unsigned int num_types; } autogroup; unsigned int max_fte; diff --git a/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c b/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c index 60353e4b3d5b..b59373d48730 100644 --- a/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c +++ b/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c @@ -918,6 +918,9 @@ struct mlx5_flow_table *mlx5_create_auto_grouped_flow_table(struct mlx5_flow_nam ft->autogroup.active = true; ft->autogroup.max_types = max_num_groups; + /* We save place for flow groups in addition to max types */ + ft->autogroup.group_size = ft->max_fte / (max_num_groups + 1); + if (is_shared_prio) ft->shared_refcount = 1; @@ -1066,6 +1069,7 @@ static struct mlx5_flow_group *fs_create_fg(struct mlx5_core_dev *dev, int refcount) { struct mlx5_flow_group *fg; + unsigned int group_size; int err; char name[20]; @@ -1073,6 +1077,8 @@ static struct mlx5_flow_group *fs_create_fg(struct mlx5_core_dev *dev, if (IS_ERR(fg)) return fg; + group_size = MLX5_GET(create_flow_group_in, fg_in, end_flow_index) - + MLX5_GET(create_flow_group_in, fg_in, start_flow_index) + 1; err = mlx5_cmd_fs_create_fg(dev, fg_in, ft->vport, ft->type, ft->id, &fg->id); @@ -1080,7 +1086,8 @@ static struct mlx5_flow_group *fs_create_fg(struct mlx5_core_dev *dev, goto free_fg; mutex_lock(&ft->base.lock); - if (ft->autogroup.active) + + if (ft->autogroup.active && group_size == ft->autogroup.group_size) ft->autogroup.num_types++; snprintf(name, sizeof(name), "group_%u", fg->id); @@ -1125,7 +1132,7 @@ static void fs_del_fg(struct mlx5_flow_group *fg) dev = fs_get_dev(&parent_ft->base); WARN_ON(!dev); - if (parent_ft->autogroup.active) + if (parent_ft->autogroup.active && fg->max_ftes == parent_ft->autogroup.group_size) parent_ft->autogroup.num_types--; if (mlx5_cmd_fs_destroy_fg(dev, parent_ft->vport, @@ -1432,7 +1439,7 @@ static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft, if (ft->autogroup.num_types < ft->autogroup.max_types) - group_size = ft->max_fte / (ft->autogroup.max_types + 1); + group_size = ft->autogroup.group_size; else group_size = 1;
