[PATCH net-next V3 02/15] net/mlx5e: ipsec: Block TC offload when IPsec is enabled
From: Tariq Toukan <tariqt@nvidia.com>
Date: 2026-09-03 08:53:53
Also in:
bpf, linux-kselftest, linux-rdma, lkml
Subsystem:
mellanox ethernet driver (mlx5e), mellanox ethernet innova drivers, mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Tariq Toukan, Mark Bloch, Leon Romanovsky, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Cosmin Ratiu <redacted> Currently the mutual exclusion mechanism is only used in packet offload mode. But with the upcoming changes to flow_tag, all RX IPsec flows need to block TC offload, so do that with the help of a small helper. Signed-off-by: Cosmin Ratiu <redacted> Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Carolina Jubran <redacted> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> --- .../ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
index 74e0aa5b6133..f236672d3a2a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c@@ -2575,11 +2575,18 @@ void mlx5e_accel_ipsec_fs_read_stats(struct mlx5e_priv *priv, void *ipsec_stats) } } +static bool accel_ipsec_should_block_tc(struct mlx5e_ipsec_sa_entry *sa_entry) +{ + return sa_entry->attrs.type == XFRM_DEV_OFFLOAD_PACKET || + sa_entry->attrs.dir == XFRM_DEV_OFFLOAD_IN; +} + int mlx5e_accel_ipsec_fs_add_rule(struct mlx5e_ipsec_sa_entry *sa_entry) { + bool block_tc = accel_ipsec_should_block_tc(sa_entry); int err; - if (sa_entry->attrs.type == XFRM_DEV_OFFLOAD_PACKET) { + if (block_tc) { err = mlx5e_accel_block_tc_offload(sa_entry->ipsec->mdev); if (err) return err;
@@ -2596,7 +2603,7 @@ int mlx5e_accel_ipsec_fs_add_rule(struct mlx5e_ipsec_sa_entry *sa_entry) return 0; err_out: - if (sa_entry->attrs.type == XFRM_DEV_OFFLOAD_PACKET) + if (block_tc) mlx5e_accel_unblock_tc_offload(sa_entry->ipsec->mdev); return err; }
@@ -2611,7 +2618,7 @@ void mlx5e_accel_ipsec_fs_del_rule(struct mlx5e_ipsec_sa_entry *sa_entry) if (ipsec_rule->pkt_reformat) mlx5_packet_reformat_dealloc(mdev, ipsec_rule->pkt_reformat); - if (sa_entry->attrs.type == XFRM_DEV_OFFLOAD_PACKET) + if (accel_ipsec_should_block_tc(sa_entry)) mlx5e_accel_unblock_tc_offload(mdev); if (sa_entry->attrs.dir == XFRM_DEV_OFFLOAD_OUT) {
--
2.44.0