From fe3b65c202700364daa5d7b560be90ec36ed3c30 Mon Sep 17 00:00:00 2001
From: Jack Min <jackmin@mellanox.com>
Date: Thu, 9 May 2019 06:11:09 +0000
Subject: [PATCH] net/mlx5: support match on TCP flags
Add support to match all TCP control bits (flags)
except "NS (ECN-nonce)" via Direct Verbs (DV) or Direct Rule (DR)
engine.
Signed-off-by: Jack Min <jackmin@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
---
drivers/net/mlx5/mlx5_flow_dv.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index d6d13e84e9..ad19d78675 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -2066,6 +2066,13 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
uint64_t last_item = 0;
uint8_t next_protocol = 0xff;
int actions_n = 0;
+ struct rte_flow_item_tcp nic_tcp_mask = {
+ .hdr = {
+ .tcp_flags = 0xFF,
+ .src_port = RTE_BE16(UINT16_MAX),
+ .dst_port = RTE_BE16(UINT16_MAX),
+ }
+ };
if (items == NULL)
return -1;
@@ -2146,7 +2153,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
ret = mlx5_flow_validate_item_tcp
(items, item_flags,
next_protocol,
- &rte_flow_item_tcp_mask,
+ &nic_tcp_mask,
error);
if (ret < 0)
return ret;
@@ -2862,6 +2869,10 @@ flow_dv_translate_item_tcp(void *matcher, void *key,
rte_be_to_cpu_16(tcp_m->hdr.dst_port));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_dport,
rte_be_to_cpu_16(tcp_v->hdr.dst_port & tcp_m->hdr.dst_port));
+ MLX5_SET(fte_match_set_lyr_2_4, headers_m, tcp_flags,
+ tcp_m->hdr.tcp_flags);
+ MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_flags,
+ (tcp_v->hdr.tcp_flags & tcp_m->hdr.tcp_flags));
}
/**
--
2.39.5