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authorVlad Dogaru <vdogaru@nvidia.com>2025-08-17 23:23:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-28 16:34:48 +0200
commit9603699528e6961571f0849650b6fc918f98df98 (patch)
treeedcdf85064ea549af50267d12e5a275b63957713
parent9ab89476b93e4e8f76110a8275c71deba18c5368 (diff)
net/mlx5: CT: Use the correct counter offset
[ Upstream commit d2d6f950cb43be6845a41cac5956cb2a10e657e5 ] Specifying the counter action is not enough, as it is used by multiple counters that were allocated in a bulk. By omitting the offset, rules will be associated with a different counter from the same bulk. Subsequently, the CT subsystem checks the correct counter, assumes that no traffic has triggered the rule, and ages out the rule. The end result is intermittent offloading of long lived connections, as rules are aged out then promptly re-added. Fix this by specifying the correct offset along with the counter rule. Fixes: 34eea5b12a10 ("net/mlx5e: CT: Add initial support for Hardware Steering") Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com> Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com> Signed-off-by: Mark Bloch <mbloch@nvidia.com> Link: https://patch.msgid.link/20250817202323.308604-8-mbloch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_hmfs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_hmfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_hmfs.c
index a4263137fef5..01d522b02947 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_hmfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_hmfs.c
@@ -173,6 +173,8 @@ static void mlx5_ct_fs_hmfs_fill_rule_actions(struct mlx5_ct_fs_hmfs *fs_hmfs,
memset(rule_actions, 0, NUM_CT_HMFS_RULES * sizeof(*rule_actions));
rule_actions[0].action = mlx5_fc_get_hws_action(fs_hmfs->ctx, attr->counter);
+ rule_actions[0].counter.offset =
+ attr->counter->id - attr->counter->bulk->base_id;
/* Modify header is special, it may require extra arguments outside the action itself. */
if (mh_action->mh_data) {
rule_actions[1].modify_header.offset = mh_action->mh_data->offset;