From: Nélio Laranjeiro Date: Mon, 20 Nov 2017 15:35:47 +0000 (+0100) Subject: net/mlx5: fix Tx checksum offloads X-Git-Tag: spdx-start~612 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4aa15eb19afe1da7704342286f3aad642a83b8e0;p=dpdk.git net/mlx5: fix Tx checksum offloads Tx checksum offloads are correctly handled in a single Tx burst function whereas the capability is always set. This causes VXLAN packet with checksum offloads request to be ignored when the (E)MPS Tx functions are selected. Fixes: f5fde5205101 ("net/mlx5: add hardware checksum offload for tunnel packets") Cc: stable@dpdk.org Signed-off-by: Nelio Laranjeiro Acked-by: Yongseok Koh --- diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index 102a8c672b..cd66fe1621 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -800,7 +800,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) priv->hw_csum_l2tun = !!(exp_device_attr.exp_device_cap_flags & IBV_DEVICE_VXLAN_SUPPORT); #endif - DEBUG("L2 tunnel checksum offloads are %ssupported", + DEBUG("Rx L2 tunnel checksum offloads are %ssupported", (priv->hw_csum_l2tun ? "" : "not ")); #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c index 93bf944cb0..28c0ad8abd 100644 --- a/drivers/net/mlx5/mlx5_rxtx.c +++ b/drivers/net/mlx5/mlx5_rxtx.c @@ -372,7 +372,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) uint16_t pkt_inline_sz = MLX5_WQE_DWORD_SIZE + 2; uint16_t tso_header_sz = 0; uint16_t ehdr; - uint8_t cs_flags = 0; + uint8_t cs_flags; uint64_t tso = 0; uint16_t tso_segsz = 0; #ifdef MLX5_PMD_SOFT_COUNTERS @@ -415,23 +415,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) if (pkts_n - i > 1) rte_prefetch0( rte_pktmbuf_mtod(*(pkts + 1), volatile void *)); - /* Should we enable HW CKSUM offload */ - if (buf->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) { - const uint64_t is_tunneled = buf->ol_flags & - (PKT_TX_TUNNEL_GRE | - PKT_TX_TUNNEL_VXLAN); - - if (is_tunneled && txq->tunnel_en) { - cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM | - MLX5_ETH_WQE_L4_INNER_CSUM; - if (buf->ol_flags & PKT_TX_OUTER_IP_CKSUM) - cs_flags |= MLX5_ETH_WQE_L3_CSUM; - } else { - cs_flags = MLX5_ETH_WQE_L3_CSUM | - MLX5_ETH_WQE_L4_CSUM; - } - } + cs_flags = txq_ol_cksum_to_cs(txq, buf); raw = ((uint8_t *)(uintptr_t)wqe) + 2 * MLX5_WQE_DWORD_SIZE; /* Replace the Ethernet type by the VLAN if necessary. */ if (buf->ol_flags & PKT_TX_VLAN_PKT) { @@ -845,7 +829,7 @@ mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) struct rte_mbuf *buf = *(pkts++); uint32_t length; unsigned int segs_n = buf->nb_segs; - uint32_t cs_flags = 0; + uint32_t cs_flags; /* * Make sure there is enough room to store this packet and @@ -861,10 +845,7 @@ mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) } max_elts -= segs_n; --pkts_n; - /* Should we enable HW CKSUM offload */ - if (buf->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) - cs_flags = MLX5_ETH_WQE_L3_CSUM | MLX5_ETH_WQE_L4_CSUM; + cs_flags = txq_ol_cksum_to_cs(txq, buf); /* Retrieve packet information. */ length = PKT_LEN(buf); assert(length); @@ -1070,7 +1051,7 @@ mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts, uintptr_t addr; uint32_t length; unsigned int segs_n = buf->nb_segs; - uint32_t cs_flags = 0; + uint8_t cs_flags; /* * Make sure there is enough room to store this packet and @@ -1091,10 +1072,7 @@ mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts, * iteration. */ max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi); - /* Should we enable HW CKSUM offload */ - if (buf->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) - cs_flags = MLX5_ETH_WQE_L3_CSUM | MLX5_ETH_WQE_L4_CSUM; + cs_flags = txq_ol_cksum_to_cs(txq, buf); /* Retrieve packet information. */ length = PKT_LEN(buf); /* Start new session if packet differs. */ @@ -1363,7 +1341,7 @@ mlx5_tx_burst_empw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) unsigned int do_inline = 0; /* Whether inline is possible. */ uint32_t length; unsigned int segs_n = buf->nb_segs; - uint32_t cs_flags = 0; + uint8_t cs_flags; /* * Make sure there is enough room to store this packet and @@ -1377,10 +1355,7 @@ mlx5_tx_burst_empw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) txq->stats.oerrors++; break; } - /* Should we enable HW CKSUM offload. */ - if (buf->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) - cs_flags = MLX5_ETH_WQE_L3_CSUM | MLX5_ETH_WQE_L4_CSUM; + cs_flags = txq_ol_cksum_to_cs(txq, buf); /* Retrieve packet information. */ length = PKT_LEN(buf); /* Start new session if: diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h index f99a02df1c..b8c7925a34 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -616,4 +616,38 @@ mlx5_tx_dbrec(struct mlx5_txq_data *txq, volatile struct mlx5_wqe *wqe) mlx5_tx_dbrec_cond_wmb(txq, wqe, 1); } +/** + * Convert the Checksum offloads to Verbs. + * + * @param txq_data + * Pointer to the Tx queue. + * @param buf + * Pointer to the mbuf. + * + * @return + * the converted cs_flags. + */ +static __rte_always_inline uint8_t +txq_ol_cksum_to_cs(struct mlx5_txq_data *txq_data, struct rte_mbuf *buf) +{ + uint8_t cs_flags = 0; + + /* Should we enable HW CKSUM offload */ + if (buf->ol_flags & + (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) { + if (txq_data->tunnel_en && + (buf->ol_flags & + (PKT_TX_TUNNEL_GRE | PKT_TX_TUNNEL_VXLAN))) { + cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM | + MLX5_ETH_WQE_L4_INNER_CSUM; + if (buf->ol_flags & PKT_TX_OUTER_IP_CKSUM) + cs_flags |= MLX5_ETH_WQE_L3_CSUM; + } else { + cs_flags = MLX5_ETH_WQE_L3_CSUM | + MLX5_ETH_WQE_L4_CSUM; + } + } + return cs_flags; +} + #endif /* RTE_PMD_MLX5_RXTX_H_ */ diff --git a/drivers/net/mlx5/mlx5_rxtx_vec.c b/drivers/net/mlx5/mlx5_rxtx_vec.c index ba6c8cefda..3aca17cb46 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec.c +++ b/drivers/net/mlx5/mlx5_rxtx_vec.c @@ -123,24 +123,7 @@ txq_calc_offload(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, for (pos = 1; pos < pkts_n; ++pos) if ((pkts[pos]->ol_flags ^ pkts[0]->ol_flags) & ol_mask) break; - /* Should open another MPW session for the rest. */ - if (pkts[0]->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) { - const uint64_t is_tunneled = - pkts[0]->ol_flags & - (PKT_TX_TUNNEL_GRE | - PKT_TX_TUNNEL_VXLAN); - - if (is_tunneled && txq->tunnel_en) { - *cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM | - MLX5_ETH_WQE_L4_INNER_CSUM; - if (pkts[0]->ol_flags & PKT_TX_OUTER_IP_CKSUM) - *cs_flags |= MLX5_ETH_WQE_L3_CSUM; - } else { - *cs_flags = MLX5_ETH_WQE_L3_CSUM | - MLX5_ETH_WQE_L4_CSUM; - } - } + *cs_flags = txq_ol_cksum_to_cs(txq, pkts[0]); return pos; } diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h index c721d80eb8..77ce0c3e03 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h +++ b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h @@ -149,7 +149,7 @@ txq_scatter_v(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, 11, 10, 9, 8, /* bswap32 */ 12, 13, 14, 15 }; - uint8_t cs_flags = 0; + uint8_t cs_flags; uint16_t max_elts; uint16_t max_wqe; uint8x16_t *t_wqe; @@ -168,22 +168,7 @@ txq_scatter_v(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, break; wqe = &((volatile struct mlx5_wqe64 *) txq->wqes)[wqe_ci & wq_mask].hdr; - if (buf->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) { - const uint64_t is_tunneled = - buf->ol_flags & (PKT_TX_TUNNEL_GRE | - PKT_TX_TUNNEL_VXLAN); - - if (is_tunneled && txq->tunnel_en) { - cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM | - MLX5_ETH_WQE_L4_INNER_CSUM; - if (buf->ol_flags & PKT_TX_OUTER_IP_CKSUM) - cs_flags |= MLX5_ETH_WQE_L3_CSUM; - } else { - cs_flags = MLX5_ETH_WQE_L3_CSUM | - MLX5_ETH_WQE_L4_CSUM; - } - } + cs_flags = txq_ol_cksum_to_cs(txq, buf); /* Title WQEBB pointer. */ t_wqe = (uint8x16_t *)wqe; dseg = (uint8_t *)(wqe + 1); diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_sse.h b/drivers/net/mlx5/mlx5_rxtx_vec_sse.h index 2b9f16010b..f256811849 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec_sse.h +++ b/drivers/net/mlx5/mlx5_rxtx_vec_sse.h @@ -148,7 +148,7 @@ txq_scatter_v(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, 8, 9, 10, 11, /* bswap32 */ 4, 5, 6, 7, /* bswap32 */ 0, 1, 2, 3 /* bswap32 */); - uint8_t cs_flags = 0; + uint8_t cs_flags; uint16_t max_elts; uint16_t max_wqe; __m128i *t_wqe, *dseg; @@ -170,22 +170,7 @@ txq_scatter_v(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, } wqe = &((volatile struct mlx5_wqe64 *) txq->wqes)[wqe_ci & wq_mask].hdr; - if (buf->ol_flags & - (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) { - const uint64_t is_tunneled = - buf->ol_flags & (PKT_TX_TUNNEL_GRE | - PKT_TX_TUNNEL_VXLAN); - - if (is_tunneled && txq->tunnel_en) { - cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM | - MLX5_ETH_WQE_L4_INNER_CSUM; - if (buf->ol_flags & PKT_TX_OUTER_IP_CKSUM) - cs_flags |= MLX5_ETH_WQE_L3_CSUM; - } else { - cs_flags = MLX5_ETH_WQE_L3_CSUM | - MLX5_ETH_WQE_L4_CSUM; - } - } + cs_flags = txq_ol_cksum_to_cs(txq, buf); /* Title WQEBB pointer. */ t_wqe = (__m128i *)wqe; dseg = (__m128i *)(wqe + 1);