From patchwork Mon Jan 29 15:08:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xueming Li X-Patchwork-Id: 34654 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 284B31B84D; Mon, 29 Jan 2018 16:11:21 +0100 (CET) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 70D4C1B3C8 for ; Mon, 29 Jan 2018 16:11:16 +0100 (CET) Received: from Internal Mail-Server by MTLPINE1 (envelope-from xuemingl@mellanox.com) with ESMTPS (AES256-SHA encrypted); 29 Jan 2018 17:11:13 +0200 Received: from dev-r630-06.mtbc.labs.mlnx (dev-r630-06.mtbc.labs.mlnx [10.12.205.180]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id w0TFB844001308; Mon, 29 Jan 2018 17:11:12 +0200 Received: from dev-r630-06.mtbc.labs.mlnx (localhost [127.0.0.1]) by dev-r630-06.mtbc.labs.mlnx (8.14.7/8.14.7) with ESMTP id w0TF9WhI071640; Mon, 29 Jan 2018 23:09:32 +0800 Received: (from xuemingl@localhost) by dev-r630-06.mtbc.labs.mlnx (8.14.7/8.14.7/Submit) id w0TF9WTF071639; Mon, 29 Jan 2018 23:09:32 +0800 From: Xueming Li To: Olivier MATZ Cc: Xueming Li , dev@dpdk.org, Jingjing Wu , Shahaf Shuler , Yongseok Koh , Thomas Monjalon , Ferruh Yigit Date: Mon, 29 Jan 2018 23:08:58 +0800 Message-Id: <20180129150859.71573-4-xuemingl@mellanox.com> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20180129150859.71573-1-xuemingl@mellanox.com> References: <20180129150859.71573-1-xuemingl@mellanox.com> In-Reply-To: <20180109141110.146250-2-xuemingl@mellanox.com> References: <20180109141110.146250-2-xuemingl@mellanox.com> Subject: [dpdk-dev] [PATCH v2 4/5] net/mlx5: support generic tunnel offloading X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This commit adds support for generic tunnel TSO and checksum offload. PMD will compute the inner/outer headers offset according to the mbuf fields. Hardware will do calculation based on offsets and types. Signed-off-by: Xueming Li --- doc/guides/nics/mlx5.rst | 8 +++ drivers/net/mlx5/Makefile | 5 ++ drivers/net/mlx5/mlx5.c | 30 +++++++-- drivers/net/mlx5/mlx5.h | 1 + drivers/net/mlx5/mlx5_ethdev.c | 3 +- drivers/net/mlx5/mlx5_prm.h | 24 +++++++ drivers/net/mlx5/mlx5_rxtx.c | 117 +++++++++++++++++++++++++++------- drivers/net/mlx5/mlx5_rxtx.h | 104 +++++++++++++++++++++++------- drivers/net/mlx5/mlx5_rxtx_vec.c | 9 +-- drivers/net/mlx5/mlx5_rxtx_vec_neon.h | 2 +- drivers/net/mlx5/mlx5_rxtx_vec_sse.h | 2 +- drivers/net/mlx5/mlx5_txq.c | 4 ++ 12 files changed, 248 insertions(+), 61 deletions(-) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 2e6d1e45a..184302ee5 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -307,6 +307,14 @@ Run-time configuration Enabled by default. +- ``swp`` parameter [int] + + A nonzero value enables TX SW parser to support genenric tunnel TSO and + checksum offloading. Please refer to ``DEV_TX_OFFLOAD_GENERIC_TNL_CKSUM_TSO`` + for detail information. + + Disabled by default. + Prerequisites ------------- diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile index a3984eb9f..254cb93c8 100644 --- a/drivers/net/mlx5/Makefile +++ b/drivers/net/mlx5/Makefile @@ -118,6 +118,11 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh enum IBV_WQ_FLAG_RX_END_PADDING \ $(AUTOCONF_OUTPUT) $Q sh -- '$<' '$@' \ + HAVE_IBV_MLX5_MOD_SWP \ + infiniband/mlx5dv.h \ + enum MLX5DV_CONTEXT_MASK_SWP \ + $(AUTOCONF_OUTPUT) + $Q sh -- '$<' '$@' \ HAVE_IBV_MLX5_MOD_MPW \ infiniband/mlx5dv.h \ enum MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED \ diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index 5a959f7c5..3b126d45a 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -93,6 +93,9 @@ /* Device parameter to enable hardware Rx vector. */ #define MLX5_RX_VEC_EN "rx_vec_en" +/* Device parameter to control Tx SW parser. */ +#define MLX5_TX_SWP "swp" + #ifndef HAVE_IBV_MLX5_MOD_MPW #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2) #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3) @@ -421,6 +424,8 @@ mlx5_args_check(const char *key, const char *val, void *opaque) config->tx_vec_en = !!tmp; } else if (strcmp(MLX5_RX_VEC_EN, key) == 0) { config->rx_vec_en = !!tmp; + } else if (strcmp(MLX5_TX_SWP, key) == 0) { + config->swp = !!tmp; } else { WARN("%s: unknown parameter", key); return -EINVAL; @@ -451,6 +456,7 @@ mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs) MLX5_TXQ_MAX_INLINE_LEN, MLX5_TX_VEC_EN, MLX5_RX_VEC_EN, + MLX5_TX_SWP, NULL, }; struct rte_kvargs *kvlist; @@ -606,9 +612,10 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) unsigned int mps; unsigned int cqe_comp; unsigned int tunnel_en = 0; + unsigned int swp = 0; int idx; int i; - struct mlx5dv_context attrs_out; + struct mlx5dv_context attrs_out = {0}; #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT struct ibv_counter_set_description cs_desc; #endif @@ -695,10 +702,9 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) ibv_dev = list[i]; DEBUG("device opened"); - /* - * Multi-packet send is supported by ConnectX-4 Lx PF as well - * as all ConnectX-5 devices. - */ +#ifdef HAVE_IBV_MLX5_MOD_SWP + attrs_out.comp_mask |= MLX5DV_CONTEXT_MASK_SWP; +#endif mlx5dv_query_device(attr_ctx, &attrs_out); if (attrs_out.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) { if (attrs_out.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) { @@ -712,6 +718,11 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) DEBUG("MPW isn't supported"); mps = MLX5_MPW_DISABLED; } +#ifdef HAVE_IBV_MLX5_MOD_SWP + if (attrs_out.comp_mask | MLX5DV_CONTEXT_MASK_SWP) + swp = attrs_out.sw_parsing_caps.sw_parsing_offloads; + DEBUG("SWP support: %u", swp); +#endif if (RTE_CACHE_LINE_SIZE == 128 && !(attrs_out.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) cqe_comp = 0; @@ -928,6 +939,11 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) err = priv_uar_init_primary(priv); if (err) goto port_error; + if (config.swp && !swp) { + WARN("Tx SWP isn't supported"); + config.swp = 0; + } + INFO("SWP is %s", config.swp ? "enabled" : "disabled"); /* Configure the first MAC address by default. */ if (priv_get_mac(priv, &mac.addr_bytes)) { ERROR("cannot get MAC address, is mlx5_en loaded?" @@ -1080,8 +1096,10 @@ RTE_INIT(rte_mlx5_pmd_init); static void rte_mlx5_pmd_init(void) { - /* Build the static table for ptype conversion. */ + /* Build the static tables for verbs conversion. */ mlx5_set_ptype_table(); + mlx5_set_cksum_table(); + mlx5_set_swp_types_table(); /* * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use * huge pages. Calling ibv_fork_init() during init allows diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index 7851cac96..db88ee840 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -116,6 +116,7 @@ struct mlx5_dev_config { unsigned int tx_vec_en:1; /* Tx vector is enabled. */ unsigned int rx_vec_en:1; /* Rx vector is enabled. */ unsigned int mpw_hdr_dseg:1; /* Enable DSEGs in the title WQEBB. */ + unsigned int swp:1; /* Tx generic tunnel checksum and TSO offload. */ unsigned int tso_max_payload_sz; /* Maximum TCP payload for TSO. */ unsigned int ind_table_max_size; /* Maximum indirection table size. */ int txq_inline; /* Maximum packet size for inlining. */ diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c index 83657f509..bef54c562 100644 --- a/drivers/net/mlx5/mlx5_ethdev.c +++ b/drivers/net/mlx5/mlx5_ethdev.c @@ -1492,7 +1492,8 @@ priv_select_tx_function(struct priv *priv, struct rte_eth_dev *dev) uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads; int tso = !!(tx_offloads & (DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_VXLAN_TNL_TSO | - DEV_TX_OFFLOAD_GRE_TNL_TSO)); + DEV_TX_OFFLOAD_GRE_TNL_TSO | + DEV_TX_OFFLOAD_GENERIC_TNL_CKSUM_TSO)); int vlan_insert = !!(tx_offloads & DEV_TX_OFFLOAD_VLAN_INSERT); assert(priv != NULL); diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h index 2de310bcb..ba62699f9 100644 --- a/drivers/net/mlx5/mlx5_prm.h +++ b/drivers/net/mlx5/mlx5_prm.h @@ -135,6 +135,30 @@ /* Inner L4 checksum offload (Tunneled packets only). */ #define MLX5_ETH_WQE_L4_INNER_CSUM (1u << 5) +/* Outer L4 type is TCP. */ +#define MLX5_ETH_WQE_L4_OUTER_TCP (0u << 5) + +/* Outer L4 type is UDP. */ +#define MLX5_ETH_WQE_L4_OUTER_UDP (1u << 5) + +/* Outer L3 type is IPV4. */ +#define MLX5_ETH_WQE_L3_OUTER_IPV4 (0u << 4) + +/* Outer L3 type is IPV6. */ +#define MLX5_ETH_WQE_L3_OUTER_IPV6 (1u << 4) + +/* Inner L4 type is TCP. */ +#define MLX5_ETH_WQE_L4_INNER_TCP (0u << 1) + +/* Inner L4 type is UDP. */ +#define MLX5_ETH_WQE_L4_INNER_UDP (1u << 1) + +/* Inner L3 type is IPV4. */ +#define MLX5_ETH_WQE_L3_INNER_IPV4 (0u << 0) + +/* Inner L3 type is IPV6. */ +#define MLX5_ETH_WQE_L3_INNER_IPV6 (1u << 0) + /* Is flow mark valid. */ #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN #define MLX5_FLOW_MARK_IS_VALID(val) ((val) & 0xffffff00) diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c index dc6691d1c..3d2462a67 100644 --- a/drivers/net/mlx5/mlx5_rxtx.c +++ b/drivers/net/mlx5/mlx5_rxtx.c @@ -75,6 +75,9 @@ uint32_t mlx5_ptype_table[] __rte_cache_aligned = { [0xff] = RTE_PTYPE_ALL_MASK, /* Last entry for errored packet. */ }; +uint8_t mlx5_cksum_table[1 << 10] __rte_cache_aligned; +uint8_t mlx5_swp_types_table[1 << 10] __rte_cache_aligned; + /** * Build a table to translate Rx completion flags to packet type. * @@ -191,6 +194,74 @@ mlx5_set_ptype_table(void) } /** + * Build a table to translate packet to checksum type of Verbs. + */ +void +mlx5_set_cksum_table(void) +{ + unsigned int i; + uint8_t v; + + /* + * The index should have: + * bit[0] = PKT_TX_TCP_SEG + * bit[2:3] = PKT_TX_UDP_CKSUM, PKT_TX_TCP_CKSUM + * bit[4] = PKT_TX_IP_CKSUM + * bit[8] = PKT_TX_OUTER_IP_CKSUM + * bit[9] = tunnel + */ + for (i = 0; i < RTE_DIM(mlx5_cksum_table); ++i) { + v = 0; + if (i & (1 << 9)) { + /* Tunneled packet. */ + if (i & (1 << 8)) /* Outer IP. */ + v |= MLX5_ETH_WQE_L3_CSUM; + if (i & (1 << 4)) /* Inner IP. */ + v |= MLX5_ETH_WQE_L3_INNER_CSUM; + if (i & (3 << 2 | 1 << 0)) /* L4 or TSO. */ + v |= MLX5_ETH_WQE_L4_INNER_CSUM; + } else { + /* No tunnel. */ + if (i & (1 << 4)) /* IP. */ + v |= MLX5_ETH_WQE_L3_CSUM; + if (i & (3 << 2 | 1 << 0)) /* L4 or TSO. */ + v |= MLX5_ETH_WQE_L4_CSUM; + } + mlx5_cksum_table[i] = v; + } +} + +/** + * Build a table to translate packet type of mbuf to SWP type of Verbs. + */ +void +mlx5_set_swp_types_table(void) +{ + unsigned int i; + uint8_t v; + + /* + * The index should have: + * bit[0:1] = PKT_TX_UDP_CKSUM + * bit[4] = PKT_TX_IPV6 + * bit[8] = PKT_TX_OUTER_IPV6 + * bit[9] = Outer UDP + */ + for (i = 0; i < RTE_DIM(mlx5_swp_types_table); ++i) { + v = 0; + if (i & (1 << 8)) /* Outer IPv6. */ + v |= MLX5_ETH_WQE_L3_OUTER_IPV6; + if (i & (1 << 9)) /* Outer UDP. */ + v |= MLX5_ETH_WQE_L4_OUTER_UDP; + if (i & (1 << 4)) /* Inner IPv6. */ + v |= MLX5_ETH_WQE_L3_INNER_IPV6; + if ((i & 3) == (PKT_TX_UDP_CKSUM >> 52)) /* Inner UDP. */ + v |= MLX5_ETH_WQE_L4_INNER_UDP; + mlx5_swp_types_table[i] = v; + } +} + +/** * Return the size of tailroom of WQ. * * @param txq @@ -255,7 +326,6 @@ mlx5_copy_to_wq(void *dst, const void *src, size_t n, static int inline_tso(struct mlx5_txq_data *txq, struct rte_mbuf *buf, uint32_t *length, - uint8_t *cs_flags, uintptr_t *addr, uint16_t *pkt_inline_sz, uint8_t **raw, @@ -278,19 +348,15 @@ inline_tso(struct mlx5_txq_data *txq, struct rte_mbuf *buf, txq->stats.oerrors++; return -EINVAL; } - if (tunneled) { + if (tunneled) *tso_header_sz += buf->outer_l2_len + buf->outer_l3_len; - *cs_flags |= MLX5_ETH_WQE_L4_INNER_CSUM; - } else { - *cs_flags |= MLX5_ETH_WQE_L4_CSUM; - } - if (unlikely(*tso_header_sz > MLX5_MAX_TSO_HEADER)) { + /* First seg must contain all TSO headers. */ + if (unlikely(*tso_header_sz > MLX5_MAX_TSO_HEADER) || + *tso_header_sz > DATA_LEN(buf)) { txq->stats.oerrors++; return -EINVAL; } copy_b = *tso_header_sz - *pkt_inline_sz; - /* First seg must contain all TSO headers. */ - assert(copy_b <= *length); if (!copy_b || ((end - (uintptr_t)*raw) < copy_b)) return -EAGAIN; n_wqe = (MLX5_WQE_DS(copy_b) - 1 + 3) / 4; @@ -423,7 +489,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) if (unlikely(!max_wqe)) return 0; do { - struct rte_mbuf *buf = NULL; + struct rte_mbuf *buf = *pkts; /* First_seg. */ uint8_t *raw; volatile struct mlx5_wqe_v *wqe = NULL; volatile rte_v128u32_t *dseg = NULL; @@ -435,15 +501,16 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) uint16_t tso_header_sz = 0; uint16_t ehdr; uint8_t cs_flags; - uint64_t tso = 0; + uint8_t tso = txq->tso_en && (buf->ol_flags & PKT_TX_TCP_SEG); + uint8_t is_vlan = buf->ol_flags & PKT_TX_VLAN_PKT; + uint32_t swp_offsets = 0; + uint8_t swp_types = 0; uint16_t tso_segsz = 0; #ifdef MLX5_PMD_SOFT_COUNTERS uint32_t total_length = 0; #endif int ret; - /* first_seg */ - buf = *pkts; segs_n = buf->nb_segs; /* * Make sure there is enough room to store this packet and @@ -478,10 +545,12 @@ 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 *)); - cs_flags = txq_ol_cksum_to_cs(txq, buf); + cs_flags = txq_ol_cksum_to_cs(buf); + txq_mbuf_to_swp(txq, buf, tso, is_vlan, + (uint8_t *)&swp_offsets, &swp_types); 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) { + if (is_vlan) { uint32_t vlan = rte_cpu_to_be_32(0x81000000 | buf->vlan_tci); unsigned int len = 2 * ETHER_ADDR_LEN - 2; @@ -504,9 +573,8 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) addr += pkt_inline_sz; } raw += MLX5_WQE_DWORD_SIZE; - tso = txq->tso_en && (buf->ol_flags & PKT_TX_TCP_SEG); if (tso) { - ret = inline_tso(txq, buf, &length, &cs_flags, + ret = inline_tso(txq, buf, &length, &addr, &pkt_inline_sz, &raw, &max_wqe, &tso_segsz, &tso_header_sz); @@ -683,8 +751,9 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) 0, }; wqe->eseg = (rte_v128u32_t){ - 0, - cs_flags | (rte_cpu_to_be_16(tso_segsz) << 16), + swp_offsets, + cs_flags | (swp_types << 8) | + (rte_cpu_to_be_16(tso_segsz) << 16), 0, (ehdr << 16) | rte_cpu_to_be_16(tso_header_sz), }; @@ -697,8 +766,8 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) 0, }; wqe->eseg = (rte_v128u32_t){ - 0, - cs_flags, + swp_offsets, + cs_flags | (swp_types << 8), 0, (ehdr << 16) | rte_cpu_to_be_16(pkt_inline_sz), }; @@ -870,7 +939,7 @@ mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) } max_elts -= segs_n; --pkts_n; - cs_flags = txq_ol_cksum_to_cs(txq, buf); + cs_flags = txq_ol_cksum_to_cs(buf); /* Retrieve packet information. */ length = PKT_LEN(buf); assert(length); @@ -1102,7 +1171,7 @@ 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); - cs_flags = txq_ol_cksum_to_cs(txq, buf); + cs_flags = txq_ol_cksum_to_cs(buf); /* Retrieve packet information. */ length = PKT_LEN(buf); /* Start new session if packet differs. */ @@ -1380,7 +1449,7 @@ txq_burst_empw(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, /* Make sure there is enough room to store this packet. */ if (max_elts - j == 0) break; - cs_flags = txq_ol_cksum_to_cs(txq, buf); + cs_flags = txq_ol_cksum_to_cs(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 d4738b14c..7040c9ec8 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -195,6 +195,7 @@ struct mlx5_txq_data { uint16_t tso_en:1; /* When set hardware TSO is enabled. */ uint16_t tunnel_en:1; /* When set TX offload for tunneled packets are supported. */ + uint16_t swp_en:1; /* Whether SW parser is enabled. */ uint16_t mpw_hdr_dseg:1; /* Enable DSEGs in the title WQEBB. */ uint16_t max_inline; /* Multiple of RTE_CACHE_LINE_SIZE to inline. */ uint16_t inline_max_packet_sz; /* Max packet size for inlining. */ @@ -301,8 +302,12 @@ uint64_t mlx5_priv_get_tx_port_offloads(struct priv *); /* mlx5_rxtx.c */ extern uint32_t mlx5_ptype_table[]; +extern uint8_t mlx5_cksum_table[]; +extern uint8_t mlx5_swp_types_table[]; void mlx5_set_ptype_table(void); +void mlx5_set_cksum_table(void); +void mlx5_set_swp_types_table(void); uint16_t mlx5_tx_burst(void *, struct rte_mbuf **, uint16_t); uint16_t mlx5_tx_burst_mpw(void *, struct rte_mbuf **, uint16_t); uint16_t mlx5_tx_burst_mpw_inline(void *, struct rte_mbuf **, uint16_t); @@ -627,38 +632,93 @@ mlx5_tx_dbrec(struct mlx5_txq_data *txq, volatile struct mlx5_wqe *wqe) } /** - * Convert the Checksum offloads to Verbs. + * Convert mbuf to Verb SWP. * * @param txq_data * Pointer to the Tx queue. * @param buf * Pointer to the mbuf. + * @param tso + * TSO offloads enabled. + * @param vlan + * VLAN offloads enabled + * @param offsets + * Pointer to the SWP header offsets. + * @param swp_types + * Pointer to the SWP header types. + */ +static __rte_always_inline void +txq_mbuf_to_swp(struct mlx5_txq_data *txq, struct rte_mbuf *buf, + uint8_t tso, uint64_t vlan, + uint8_t *offsets, uint8_t *swp_types) +{ + uint8_t tunnel = (buf->ol_flags & PKT_TX_TUNNEL_MASK) || + buf->outer_l2_len; + uint16_t idx; + uint16_t off; + int outer_udp; + const uint64_t ol_flags_mask = PKT_TX_UDP_CKSUM | PKT_TX_IPV6 | + PKT_TX_OUTER_IPV6; + + if (!txq->swp_en || !tunnel) + return; + outer_udp = (buf->ol_flags & PKT_TX_TUNNEL_MASK) == PKT_TX_TUNNEL_VXLAN; + /* + * The index should have: + * bit[0:1] = PKT_TX_UDP_CKSUM + * bit[4] = PKT_TX_IPV6 + * bit[8] = PKT_TX_OUTER_IPV6 + * bit[9] = Outer UDP + */ + idx = ((buf->ol_flags & ol_flags_mask) >> 52) | + (outer_udp << 9); + *swp_types = mlx5_swp_types_table[idx]; + /* swp offsets. */ + off = buf->outer_l2_len + (vlan ? 4 : 0); /* Outer L3 offset. */ + if (tso || (buf->ol_flags & PKT_TX_OUTER_IP_CKSUM)) + offsets[1] = off >> 1; + off += buf->outer_l3_len; /* Outer L4 offset. */ + if (outer_udp) + offsets[0] = off >> 1; + off += buf->l2_len; /* Inner L3 offset. */ + if (tso || (buf->ol_flags & PKT_TX_IP_CKSUM)) + offsets[3] = off >> 1; + off += buf->l3_len; /* Inner L4 offset. */ + if (tso || ((buf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) || + ((buf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_UDP_CKSUM)) + offsets[2] = off >> 1; +} + +/** + * Convert the Checksum offloads to Verbs. + * + * @param buf + * Pointer to the mbuf. * * @return - * the converted cs_flags. + * Converted checksum flags. */ static __rte_always_inline uint8_t -txq_ol_cksum_to_cs(struct mlx5_txq_data *txq_data, struct rte_mbuf *buf) +txq_ol_cksum_to_cs(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 | - PKT_TX_OUTER_IP_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; + uint32_t idx; + uint32_t is_tunnel; + const uint64_t ol_flags_mask = PKT_TX_TCP_SEG | PKT_TX_L4_MASK | + PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM; + + is_tunnel = (buf->ol_flags & (PKT_TX_TUNNEL_MASK | + PKT_TX_OUTER_IP_CKSUM)) || buf->outer_l2_len; + /* + * The index should have: + * bit[0] = PKT_TX_TCP_SEG + * bit[2:3] = PKT_TX_UDP_CKSUM, PKT_TX_TCP_CKSUM + * bit[4] = PKT_TX_IP_CKSUM + * bit[8] = PKT_TX_OUTER_IP_CKSUM + * bit[9] = tunnel + */ + idx = ((buf->ol_flags & ol_flags_mask) >> 50) | + (is_tunnel << 9); + return mlx5_cksum_table[idx]; } /** diff --git a/drivers/net/mlx5/mlx5_rxtx_vec.c b/drivers/net/mlx5/mlx5_rxtx_vec.c index 142c786d5..a1f3d662a 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec.c +++ b/drivers/net/mlx5/mlx5_rxtx_vec.c @@ -70,8 +70,6 @@ /** * Count the number of packets having same ol_flags and calculate cs_flags. * - * @param txq - * Pointer to TX queue structure. * @param pkts * Pointer to array of packets. * @param pkts_n @@ -83,8 +81,7 @@ * Number of packets having same ol_flags. */ static inline unsigned int -txq_calc_offload(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, - uint16_t pkts_n, uint8_t *cs_flags) +txq_calc_offload(struct rte_mbuf **pkts, uint16_t pkts_n, uint8_t *cs_flags) { unsigned int pos; const uint64_t ol_mask = @@ -98,7 +95,7 @@ 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; - *cs_flags = txq_ol_cksum_to_cs(txq, pkts[0]); + *cs_flags = txq_ol_cksum_to_cs(pkts[0]); return pos; } @@ -169,7 +166,7 @@ mlx5_tx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) if (txq->offloads & DEV_TX_OFFLOAD_MULTI_SEGS) n = txq_count_contig_single_seg(&pkts[nb_tx], n); if (txq->offloads & MLX5_VEC_TX_CKSUM_OFFLOAD_CAP) - n = txq_calc_offload(txq, &pkts[nb_tx], n, &cs_flags); + n = txq_calc_offload(&pkts[nb_tx], n, &cs_flags); ret = txq_burst_v(txq, &pkts[nb_tx], n, cs_flags); nb_tx += ret; if (!ret) diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h index e11565f69..261da11a6 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h +++ b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h @@ -170,7 +170,7 @@ 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; - cs_flags = txq_ol_cksum_to_cs(txq, buf); + cs_flags = txq_ol_cksum_to_cs(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 559b0237e..c55f5e36a 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec_sse.h +++ b/drivers/net/mlx5/mlx5_rxtx_vec_sse.h @@ -172,7 +172,7 @@ txq_scatter_v(struct mlx5_txq_data *txq, struct rte_mbuf **pkts, } wqe = &((volatile struct mlx5_wqe64 *) txq->wqes)[wqe_ci & wq_mask].hdr; - cs_flags = txq_ol_cksum_to_cs(txq, buf); + cs_flags = txq_ol_cksum_to_cs(buf); /* Title WQEBB pointer. */ t_wqe = (__m128i *)wqe; dseg = (__m128i *)(wqe + 1); diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c index 65086d36f..c4cd61aa6 100644 --- a/drivers/net/mlx5/mlx5_txq.c +++ b/drivers/net/mlx5/mlx5_txq.c @@ -143,6 +143,8 @@ mlx5_priv_get_tx_port_offloads(struct priv *priv) if (config->tso) offloads |= (DEV_TX_OFFLOAD_VXLAN_TNL_TSO | DEV_TX_OFFLOAD_GRE_TNL_TSO); + if (config->swp) + offloads |= DEV_TX_OFFLOAD_GENERIC_TNL_CKSUM_TSO; } return offloads; } @@ -754,6 +756,8 @@ txq_set_params(struct mlx5_txq_ctrl *txq_ctrl) txq_ctrl->txq.tso_en = 1; } txq_ctrl->txq.tunnel_en = config->tunnel_en; + txq_ctrl->txq.swp_en = (DEV_TX_OFFLOAD_GENERIC_TNL_CKSUM_TSO & + txq_ctrl->txq.offloads) && config->swp; } /**