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authorPaul Vinciguerra <pvinci@vinciconsulting.com>2019-06-18 22:59:55 -0400
committerDamjan Marion <dmarion@me.com>2019-06-20 03:37:54 +0000
commit3a9f11e6d93c9839c7bb0aaa62662299165123d8 (patch)
tree930a341769d6521ae95bd479132f0f744b3f899c /gmod
parentc09b7fd05104745a535a26794c0e680d7a6781c5 (diff)
tests: add sudo to gdb commands
Prepend sudo to the gdb command line. Type: test Change-Id: I09013c3ca512e26de0c46c02f643b21064ba499c Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
Diffstat (limited to 'gmod')
0 files changed, 0 insertions, 0 deletions
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From cbff9112647213bf4376a0c78032d15585a3b5b6 Mon Sep 17 00:00:00 2001
From: Mohsin Kazmi <mohsin.kazmi14@gmail.com>
Date: Thu, 17 Jun 2021 14:57:01 +0200
Subject: [PATCH] net: fix Intel-specific Prepare the outer IPv4 hdr for
 checksum

Preparation of the headers for the hardware offload
misses the outer IPv4 checksum offload.
It results in bad checksum computed by hardware NIC.

This patch fixes the issue by setting the outer IPv4
checksum field to 0.

Fixes: 4fb7e803eb1a ("ethdev: add Tx preparation")
Cc: stable@dpdk.org

Signed-off-by: Mohsin Kazmi <mohsin.kazmi14@gmail.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
---
 lib/net/rte_net.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/lib/net/rte_net.h b/lib/net/rte_net.h
index 434435ffa2..42639bc154 100644
--- a/lib/net/rte_net.h
+++ b/lib/net/rte_net.h
@@ -125,11 +125,22 @@ rte_net_intel_cksum_flags_prepare(struct rte_mbuf *m, uint64_t ol_flags)
 	 * Mainly it is required to avoid fragmented headers check if
 	 * no offloads are requested.
 	 */
-	if (!(ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK | PKT_TX_TCP_SEG)))
+	if (!(ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK | PKT_TX_TCP_SEG |
+			  PKT_TX_OUTER_IP_CKSUM)))
 		return 0;
 
-	if (ol_flags & (PKT_TX_OUTER_IPV4 | PKT_TX_OUTER_IPV6))
+	if (ol_flags & (PKT_TX_OUTER_IPV4 | PKT_TX_OUTER_IPV6)) {
 		inner_l3_offset += m->outer_l2_len + m->outer_l3_len;
+		/*
+		 * prepare outer IPv4 header checksum by setting it to 0,
+		 * in order to be computed by hardware NICs.
+		 */
+		if (ol_flags & PKT_TX_OUTER_IP_CKSUM) {
+			ipv4_hdr = rte_pktmbuf_mtod_offset(m,
+					struct rte_ipv4_hdr *, m->outer_l2_len);
+			ipv4_hdr->hdr_checksum = 0;
+		}
+	}
 
 	/*
 	 * Check if headers are fragmented.
-- 
2.17.1