The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=67a9c8868af371f3e0b96a18d1f9d54fd2be4b1a
commit 67a9c8868af371f3e0b96a18d1f9d54fd2be4b1a Author: Mark Bloch <[email protected]> AuthorDate: 2023-02-19 14:16:43 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2023-11-22 01:40:28 +0000 net/mlx5: Allow creating autogroups with reserved entries (cherry picked from commit 0a5db6bb3a953bd22f53f3607ae6853487548532) --- sys/dev/mlx5/fs.h | 3 ++- sys/dev/mlx5/mlx5_core/fs_core.h | 1 + sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c | 22 +++++++++++++++++----- 3 files changed, 20 insertions(+), 6 deletions(-) diff --git a/sys/dev/mlx5/fs.h b/sys/dev/mlx5/fs.h index da1a469d333c..d61a2bb498b7 100644 --- a/sys/dev/mlx5/fs.h +++ b/sys/dev/mlx5/fs.h @@ -140,7 +140,8 @@ mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns, int prio, const char *name, int num_flow_table_entries, - int max_num_groups); + int max_num_groups, + int num_reserved_entries); struct mlx5_flow_table * mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns, diff --git a/sys/dev/mlx5/mlx5_core/fs_core.h b/sys/dev/mlx5/mlx5_core/fs_core.h index dc619fc2d2db..a9273fdab61c 100644 --- a/sys/dev/mlx5/mlx5_core/fs_core.h +++ b/sys/dev/mlx5/mlx5_core/fs_core.h @@ -99,6 +99,7 @@ struct mlx5_flow_table { unsigned int max_types; unsigned int group_size; unsigned int num_types; + unsigned int max_fte; } autogroup; unsigned int max_fte; unsigned int level; diff --git a/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c b/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c index b59373d48730..dcf93e5fc892 100644 --- a/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c +++ b/sys/dev/mlx5/mlx5_core/mlx5_fs_tree.c @@ -892,12 +892,18 @@ struct mlx5_flow_table *mlx5_create_auto_grouped_flow_table(struct mlx5_flow_nam int prio, const char *name, int num_flow_table_entries, - int max_num_groups) + int max_num_groups, + int num_reserved_entries) { struct mlx5_flow_table *ft = NULL; struct fs_prio *fs_prio; bool is_shared_prio; + if (max_num_groups > (num_flow_table_entries - num_reserved_entries)) + return ERR_PTR(-EINVAL); + if (num_reserved_entries > num_flow_table_entries) + return ERR_PTR(-EINVAL); + fs_prio = find_prio(ns, prio); if (!fs_prio) return ERR_PTR(-EINVAL); @@ -918,8 +924,9 @@ 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; + ft->autogroup.max_fte = num_flow_table_entries - num_reserved_entries; /* We save place for flow groups in addition to max types */ - ft->autogroup.group_size = ft->max_fte / (max_num_groups + 1); + ft->autogroup.group_size = ft->autogroup.max_fte / (max_num_groups + 1); if (is_shared_prio) ft->shared_refcount = 1; @@ -1109,11 +1116,13 @@ struct mlx5_flow_group *mlx5_create_flow_group(struct mlx5_flow_table *ft, { struct mlx5_flow_group *fg; struct mlx5_core_dev *dev = fs_get_dev(&ft->base); + unsigned int start_index; + start_index = MLX5_GET(create_flow_group_in, in, start_flow_index); if (!dev) return ERR_PTR(-ENODEV); - if (ft->autogroup.active) + if (ft->autogroup.active && start_index < ft->autogroup.max_fte) return ERR_PTR(-EPERM); fg = fs_create_fg(dev, ft, ft->fgs.prev, in, 1); @@ -1132,7 +1141,9 @@ 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 && fg->max_ftes == parent_ft->autogroup.group_size) + if (parent_ft->autogroup.active && + fg->max_ftes == parent_ft->autogroup.group_size && + fg->start_index < parent_ft->autogroup.max_fte) parent_ft->autogroup.num_types--; if (mlx5_cmd_fs_destroy_fg(dev, parent_ft->vport, @@ -1423,6 +1434,7 @@ static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft, u32 *in; int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); void *match_criteria_addr; + u32 max_fte = ft->autogroup.max_fte; if (!ft->autogroup.active) return ERR_PTR(-ENOENT); @@ -1459,7 +1471,7 @@ static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft, prev = &g->base.list; } - if (candidate_index + group_size > ft->max_fte) { + if (candidate_index + group_size > max_fte) { ret = ERR_PTR(-ENOSPC); goto out; }
