From: Yiding Zhou <yidingx.zhou@intel.com> To: dev@dpdk.org, jingjing.wu@intel.com, beilei.xing@intel.com Cc: qiming.yang@intel.com, qi.z.zhang@intel.com, stable@dpdk.org, ramamani.yeleswarapu@intel.com Subject: [PATCH v2] net/iavf: fix mismatch between rx_pkt_burst and RX descriptor Date: Sun, 8 May 2022 00:15:50 +0800 Message-ID: <20220507161550.244798-1-yidingx.zhou@intel.com> (raw) In-Reply-To: <20220507093637.127591-1-yidingx.zhou@intel.com> Some kernel drivers return the capability VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC when IAVF_RXDID_COMMS_OVS_1 is not supported. This causes PMD to use rx_pkt_burst that handles the Flex Receive Descriptor format, but actually configures the RXDID into IAVF_RXDID_LEGACY_1, then the fields of rte_mbuf Will be filled with wrong values in rx_pkt_burst, which will eventually lead to coredump. This patch fixes mismatch between rx_pkt_burst and rx descriptor. Fixes: 12b435bf8f2f ("net/iavf: support flex desc metadata extraction") Cc: stable@dpdk.org Signed-off-by: Yiding Zhou <yidingx.zhou@intel.com> --- drivers/net/iavf/iavf_rxtx.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c index 345f6aeebc..ed8d51dbb2 100644 --- a/drivers/net/iavf/iavf_rxtx.c +++ b/drivers/net/iavf/iavf_rxtx.c @@ -2899,14 +2899,23 @@ iavf_set_rx_function(struct rte_eth_dev *dev) struct iavf_adapter *adapter = IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private); + int i; + struct iavf_rx_queue *rxq; + bool use_flex = true; + + for (i = 0; i < dev->data->nb_rx_queues; i++) { + rxq = dev->data->rx_queues[i]; + if (rxq->rxdid <= IAVF_RXDID_LEGACY_1 || + !(vf->supported_rxdid & BIT(rxq->rxdid))) { + use_flex = false; + break; + } + } #ifdef RTE_ARCH_X86 - struct iavf_rx_queue *rxq; - int i; int check_ret; bool use_avx2 = false; bool use_avx512 = false; - bool use_flex = false; check_ret = iavf_rx_vec_dev_check(dev); if (check_ret >= 0 && @@ -2923,10 +2932,6 @@ iavf_set_rx_function(struct rte_eth_dev *dev) use_avx512 = true; #endif - if (vf->vf_res->vf_cap_flags & - VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) - use_flex = true; - for (i = 0; i < dev->data->nb_rx_queues; i++) { rxq = dev->data->rx_queues[i]; (void)iavf_rxq_vec_setup(rxq); @@ -3030,7 +3035,7 @@ iavf_set_rx_function(struct rte_eth_dev *dev) if (dev->data->scattered_rx) { PMD_DRV_LOG(DEBUG, "Using a Scattered Rx callback (port=%d).", dev->data->port_id); - if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) + if (use_flex) dev->rx_pkt_burst = iavf_recv_scattered_pkts_flex_rxd; else dev->rx_pkt_burst = iavf_recv_scattered_pkts; @@ -3041,7 +3046,7 @@ iavf_set_rx_function(struct rte_eth_dev *dev) } else { PMD_DRV_LOG(DEBUG, "Using Basic Rx callback (port=%d).", dev->data->port_id); - if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) + if (use_flex) dev->rx_pkt_burst = iavf_recv_pkts_flex_rxd; else dev->rx_pkt_burst = iavf_recv_pkts; -- 2.25.1
next prev parent reply other threads:[~2022-05-07 8:09 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-07 9:36 [PATCH] " Yiding Zhou 2022-05-07 16:15 ` Yiding Zhou [this message] 2022-05-07 19:52 ` [PATCH v2] " Yiding Zhou 2022-05-09 2:05 ` Zhang, Qi Z 2022-05-11 0:04 ` Zhang, Qi Z 2022-05-17 0:57 ` Zhang, Qi Z 2022-05-07 16:11 Yiding Zhou
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