[dpdk-dev] [PATCH] net/mlx5: add ptype table idx for TCP ACK packets

[Bin Huang]

From: Bin Huang <bin.huang at hxt-semitech.com>

According to CQE format:
- l4_hdr_type:
     0 - None
     1 - TCP header was present in the packet
     2 - UDP header was present in the packet
     3 - TCP header was present in the packet with Empty
         TCP ACK indication. (TCP packet <ACK> flag is set,
         and packet carries no data)
     4 - TCP header was present in the packet with TCP ACK indication.
         (TCP packet <ACK> flag is set, and packet carries data).

A packet should be identified as TCP packet if l4_hdr_type is 1, 3 or 4.
Add corresponding idx of TCP ACK to ptype table.

previous discussion:
https://www.mail-archive.com/users@dpdk.org/msg02980.html

Signed-off-by: Bin Huang <bin.huang at hxt-semitech.com>
---
 drivers/net/mlx5/mlx5_rxtx.c | 34 +++++++++++++++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index dc4ead9..e9c5a6f 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -81,11 +81,19 @@
 		     RTE_PTYPE_L4_FRAG;
 	(*p)[0x22] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
 		     RTE_PTYPE_L4_FRAG;
-	/* TCP */
+	/* TCP - Support TCP ACK indication */
 	(*p)[0x05] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
 		     RTE_PTYPE_L4_TCP;
 	(*p)[0x06] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
 		     RTE_PTYPE_L4_TCP;
+	(*p)[0x11] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_L4_TCP;
+	(*p)[0x12] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_L4_TCP;
+	(*p)[0x0d] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_L4_TCP;
+	(*p)[0x0e] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_L4_TCP;
 	/* UDP */
 	(*p)[0x09] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
 		     RTE_PTYPE_L4_UDP;
@@ -141,12 +149,36 @@
 	(*p)[0x46] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0x4d] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0x4e] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0x51] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0x52] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
 	(*p)[0xc5] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L4_TCP;
 	(*p)[0xc6] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0xcd] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0xce] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0xd1] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
+	(*p)[0xd2] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
+		     RTE_PTYPE_INNER_L4_TCP;
 	/* Tunneled - UDP */
 	(*p)[0x49] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
 		     RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
-- 
1.9.0