[dpdk-dev] [PATCH] net/i40e: fix setting RSS in i40e_recv_scattered_pkts

[dumitru.ceara@gmail.com]

From: Dumitru Ceara <dumitru.ceara@gmail.com>

The driver is incorrectly setting the RSS field in the last mbuf in
the packet chain instead of the first. Moreover, the last mbuf might
have already been freed if it only contained the Ethernet CRC.

Also, fix the call to i40e_rxd_build_fdir to store the fdir flags in
the first mbuf of the chain instead of the last.

Signed-off-by: Dumitru Ceara <dumitru.ceara@gmail.com>
---
 drivers/net/i40e/i40e_rxtx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index d3cfb98..554d167 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1436,10 +1436,10 @@ i40e_recv_scattered_pkts(void *rx_queue,
 			i40e_rxd_pkt_type_mapping((uint8_t)((qword1 &
 			I40E_RXD_QW1_PTYPE_MASK) >> I40E_RXD_QW1_PTYPE_SHIFT));
 		if (pkt_flags & PKT_RX_RSS_HASH)
-			rxm->hash.rss =
+			first_seg->hash.rss =
 				rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss);
 		if (pkt_flags & PKT_RX_FDIR)
-			pkt_flags |= i40e_rxd_build_fdir(&rxd, rxm);
+			pkt_flags |= i40e_rxd_build_fdir(&rxd, first_seg);
 
 #ifdef RTE_LIBRTE_IEEE1588
 		pkt_flags |= i40e_get_iee15888_flags(first_seg, qword1);
-- 
1.9.1