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[net-next,6/9] net/mlx5e: TC, add hw counter to branching actions

Message ID 20230201161039.20714-7-ozsh@nvidia.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series net: flow_offload: add support for per action hw stats | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 6 maintainers not CCed: leon@kernel.org pabeni@redhat.com linux-rdma@vger.kernel.org kuba@kernel.org edumazet@google.com davem@davemloft.net
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 17 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Oz Shlomo Feb. 1, 2023, 4:10 p.m. UTC 
Currently a hw count action is appended to the last action of the action
list. However, a branching action may terminate the action list before
reaching the last action.

Append a count action to a branching action.
In the next patches, filters with branching actions will read this counter
when reporting stats per action.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 4e6f5caf8ab6..39f75f7d5c8b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3796,6 +3796,7 @@  bool mlx5e_same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv)
 	INIT_LIST_HEAD(&attr2->list);
 	parse_attr->filter_dev = attr->parse_attr->filter_dev;
 	attr2->action = 0;
+	attr2->counter = NULL;
 	attr2->flags = 0;
 	attr2->parse_attr = parse_attr;
 	attr2->dest_chain = 0;
@@ -4095,6 +4096,10 @@  struct mlx5_flow_attr *
 		jump_state->jumping_attr = attr->branch_false;
 
 	jump_state->jump_count = jump_count;
+
+	/* branching action requires its own counter */
+	attr->action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
+
 	return 0;
 
 err_branch_false: