From mboxrd@z Thu Jan 1 00:00:00 1970 From: Helin Zhang Subject: [PATCH v3 1/7] i40e: fix for getting correct RSS hash result Date: Tue, 24 Jun 2014 10:02:33 +0800 Message-ID: <1403575359-10422-2-git-send-email-helin.zhang@intel.com> References: <1403575359-10422-1-git-send-email-helin.zhang@intel.com> To: dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <1403575359-10422-1-git-send-email-helin.zhang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" It wrongly gets the RSS hash result from the RX descriptor which has been modified for receiving new packet. The fix is to get the RSS hash result from the buffer which saves the RX descriptor. Signed-off-by: Helin Zhang Acked-by: Jing Chen Acked-by: Cunming Liang --- lib/librte_pmd_i40e/i40e_rxtx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/librte_pmd_i40e/i40e_rxtx.c b/lib/librte_pmd_i40e/i40e_rxtx.c index 9fccbee..3a6a2d8 100644 --- a/lib/librte_pmd_i40e/i40e_rxtx.c +++ b/lib/librte_pmd_i40e/i40e_rxtx.c @@ -863,7 +863,7 @@ i40e_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) rxm->ol_flags = pkt_flags; if (pkt_flags & PKT_RX_RSS_HASH) rxm->pkt.hash.rss = - rte_le_to_cpu_32(rxdp->wb.qword0.hi_dword.rss); + rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss); rx_pkts[nb_rx++] = rxm; } @@ -1016,7 +1016,7 @@ i40e_recv_scattered_pkts(void *rx_queue, first_seg->ol_flags = pkt_flags; if (pkt_flags & PKT_RX_RSS_HASH) rxm->pkt.hash.rss = - rte_le_to_cpu_32(rxdp->wb.qword0.hi_dword.rss); + rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss); /* Prefetch data of first segment, if configured to do so. */ rte_prefetch0(first_seg->pkt.data); -- 1.8.1.4