[dpdk-stable] patch 'net/bnxt: fix Rx checksum flags' has been queued to LTS release 16.11.7

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/25/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From 0b1de008cbcbafbbdf27593743ca0518f90b18ae Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde at broadcom.com>
Date: Tue, 22 May 2018 11:13:47 -0700
Subject: [PATCH] net/bnxt: fix Rx checksum flags

[ upstream commit 65ee636872ebd13b85bb0bebeb3cade56f94e6f1 ]

For frames where the hardware is not able to calculate checksum
we are indicating such frames to be bad. And that is incorrect.
Indicate PKT_RX_IP_CKSUM_UNKNOWN or PKT_RX_L4_CKSUM_UNKNOWN
for such frames.

Fixes: 7ec39d8c524b ("net/bnxt: update status of Rx IP/L4 CKSUM")

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_rxr.c | 4 ++++
 drivers/net/bnxt/bnxt_rxr.h | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 71f314245..ccf8196a1 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -153,11 +153,15 @@ static uint16_t bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 
 	if (likely(RX_CMP_IP_CS_OK(rxcmp1)))
 		mbuf->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
+	else if (likely(RX_CMP_IP_CS_UNKNOWN(rxcmp1)))
+		mbuf->ol_flags |= PKT_RX_IP_CKSUM_UNKNOWN;
 	else
 		mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
 
 	if (likely(RX_CMP_L4_CS_OK(rxcmp1)))
 		mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
+	else if (likely(RX_CMP_L4_CS_UNKNOWN(rxcmp1)))
+		mbuf->ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
 	else
 		mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
 
diff --git a/drivers/net/bnxt/bnxt_rxr.h b/drivers/net/bnxt/bnxt_rxr.h
index 40c9df440..ec2832b57 100644
--- a/drivers/net/bnxt/bnxt_rxr.h
+++ b/drivers/net/bnxt/bnxt_rxr.h
@@ -49,6 +49,9 @@
 	    (((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS) &&		\
 	     !((rxcmp1)->errors_v2 & RX_CMP_L4_CS_ERR_BITS))
 
+#define RX_CMP_L4_CS_UNKNOWN(rxcmp1)					\
+	    !((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS)
+
 #define RX_CMP_IP_CS_ERR_BITS	\
 	rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_IP_CS_ERROR | \
 			 RX_PKT_CMPL_ERRORS_T_IP_CS_ERROR)
@@ -61,6 +64,9 @@
 		(((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS) &&	\
 		!((rxcmp1)->errors_v2 & RX_CMP_IP_CS_ERR_BITS))
 
+#define RX_CMP_IP_CS_UNKNOWN(rxcmp1)					\
+		!((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS)
+
 struct bnxt_sw_rx_bd {
 	struct rte_mbuf		*mbuf; /* data associated with RX descriptor */
 };
-- 
2.14.2