X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_rxtx.h;h=1db468c3ba04c5eb34334101c5333bc4baa1ab79;hb=8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82;hp=7de1d10863e54162cbbd87428154804352755de5;hpb=f239aed5e674965691846e8ce3f187dd47523689;p=deb_dpdk.git diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h index 7de1d108..1db468c3 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -1,34 +1,6 @@ -/*- - * BSD LICENSE - * - * Copyright 2015 6WIND S.A. - * Copyright 2015 Mellanox. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of 6WIND S.A. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2015 6WIND S.A. + * Copyright 2015 Mellanox Technologies, Ltd */ #ifndef RTE_PMD_MLX5_RXTX_H_ @@ -36,6 +8,7 @@ #include #include +#include /* Verbs header. */ /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ @@ -43,28 +16,29 @@ #pragma GCC diagnostic ignored "-Wpedantic" #endif #include -#include +#include #ifdef PEDANTIC #pragma GCC diagnostic error "-Wpedantic" #endif -/* DPDK headers don't like -pedantic. */ -#ifdef PEDANTIC -#pragma GCC diagnostic ignored "-Wpedantic" -#endif #include #include #include -#ifdef PEDANTIC -#pragma GCC diagnostic error "-Wpedantic" -#endif +#include +#include +#include +#include #include "mlx5_utils.h" #include "mlx5.h" +#include "mlx5_mr.h" #include "mlx5_autoconf.h" #include "mlx5_defs.h" #include "mlx5_prm.h" +/* Support tunnel matching. */ +#define MLX5_FLOW_TUNNEL 5 + struct mlx5_rxq_stats { unsigned int idx; /**< Mapping index. */ #ifdef MLX5_PMD_SOFT_COUNTERS @@ -81,15 +55,7 @@ struct mlx5_txq_stats { uint64_t opackets; /**< Total of successfully sent packets. */ uint64_t obytes; /**< Total of successfully sent bytes. */ #endif - uint64_t odropped; /**< Total of packets not sent when TX ring full. */ -}; - -/* Flow director queue structure. */ -struct fdir_queue { - struct ibv_qp *qp; /* Associated RX QP. */ - struct ibv_exp_rwq_ind_table *ind_table; /* Indirection table. */ - struct ibv_exp_wq *wq; /* Work queue. */ - struct ibv_cq *cq; /* Completion queue. */ + uint64_t oerrors; /**< Total number of failed transmitted packets. */ }; struct priv; @@ -103,261 +69,359 @@ struct rxq_zip { uint32_t cqe_cnt; /* Number of CQEs. */ }; +/* Multi-Packet RQ buffer header. */ +struct mlx5_mprq_buf { + struct rte_mempool *mp; + rte_atomic16_t refcnt; /* Atomically accessed refcnt. */ + uint8_t pad[RTE_PKTMBUF_HEADROOM]; /* Headroom for the first packet. */ +} __rte_cache_aligned; + +/* Get pointer to the first stride. */ +#define mlx5_mprq_buf_addr(ptr) ((ptr) + 1) + /* RX queue descriptor. */ -struct rxq { +struct mlx5_rxq_data { unsigned int csum:1; /* Enable checksum offloading. */ - unsigned int csum_l2tun:1; /* Same for L2 tunnels. */ + unsigned int hw_timestamp:1; /* Enable HW timestamp. */ unsigned int vlan_strip:1; /* Enable VLAN stripping. */ unsigned int crc_present:1; /* CRC must be subtracted. */ unsigned int sges_n:2; /* Log 2 of SGEs (max buffers per packet). */ unsigned int cqe_n:4; /* Log 2 of CQ elements. */ unsigned int elts_n:4; /* Log 2 of Mbufs. */ - unsigned int port_id:8; unsigned int rss_hash:1; /* RSS hash result is enabled. */ unsigned int mark:1; /* Marked flow available on the queue. */ - unsigned int pending_err:1; /* CQE error needs to be handled. */ - unsigned int trim_elts:1; /* Whether elts needs clean-up. */ + unsigned int strd_num_n:5; /* Log 2 of the number of stride. */ + unsigned int strd_sz_n:4; /* Log 2 of stride size. */ + unsigned int strd_shift_en:1; /* Enable 2bytes shift on a stride. */ unsigned int :6; /* Remaining bits. */ volatile uint32_t *rq_db; volatile uint32_t *cq_db; - uint16_t rq_ci; - uint16_t rq_pi; - uint16_t cq_ci; - volatile struct mlx5_wqe_data_seg(*wqes)[]; + uint16_t port_id; + uint32_t rq_ci; + uint16_t consumed_strd; /* Number of consumed strides in WQE. */ + uint32_t rq_pi; + uint32_t cq_ci; + struct mlx5_mr_ctrl mr_ctrl; /* MR control descriptor. */ + uint16_t mprq_max_memcpy_len; /* Maximum size of packet to memcpy. */ + volatile void *wqes; volatile struct mlx5_cqe(*cqes)[]; struct rxq_zip zip; /* Compressed context. */ - struct rte_mbuf *(*elts)[]; + RTE_STD_C11 + union { + struct rte_mbuf *(*elts)[]; + struct mlx5_mprq_buf *(*mprq_bufs)[]; + }; struct rte_mempool *mp; + struct rte_mempool *mprq_mp; /* Mempool for Multi-Packet RQ. */ + struct mlx5_mprq_buf *mprq_repl; /* Stashed mbuf for replenish. */ struct mlx5_rxq_stats stats; uint64_t mbuf_initializer; /* Default rearm_data for vectorized Rx. */ struct rte_mbuf fake_mbuf; /* elts padding for vectorized Rx. */ + void *cq_uar; /* CQ user access region. */ + uint32_t cqn; /* CQ number. */ + uint8_t cq_arm_sn; /* CQ arm seq number. */ +#ifndef RTE_ARCH_64 + rte_spinlock_t *uar_lock_cq; + /* CQ (UAR) access lock required for 32bit implementations */ +#endif + uint32_t tunnel; /* Tunnel information. */ } __rte_cache_aligned; -/* RX queue control descriptor. */ -struct rxq_ctrl { - struct priv *priv; /* Back pointer to private data. */ +/* Verbs Rx queue elements. */ +struct mlx5_rxq_ibv { + LIST_ENTRY(mlx5_rxq_ibv) next; /* Pointer to the next element. */ + rte_atomic32_t refcnt; /* Reference counter. */ + struct mlx5_rxq_ctrl *rxq_ctrl; /* Back pointer to parent. */ struct ibv_cq *cq; /* Completion Queue. */ - struct ibv_exp_wq *wq; /* Work Queue. */ - struct fdir_queue *fdir_queue; /* Flow director queue. */ - struct ibv_mr *mr; /* Memory Region (for mp). */ + struct ibv_wq *wq; /* Work Queue. */ struct ibv_comp_channel *channel; - unsigned int socket; /* CPU socket ID for allocations. */ - struct rxq rxq; /* Data path structure. */ -}; - -/* Hash RX queue types. */ -enum hash_rxq_type { - HASH_RXQ_TCPV4, - HASH_RXQ_UDPV4, - HASH_RXQ_IPV4, - HASH_RXQ_TCPV6, - HASH_RXQ_UDPV6, - HASH_RXQ_IPV6, - HASH_RXQ_ETH, -}; - -/* Flow structure with Ethernet specification. It is packed to prevent padding - * between attr and spec as this layout is expected by libibverbs. */ -struct flow_attr_spec_eth { - struct ibv_exp_flow_attr attr; - struct ibv_exp_flow_spec_eth spec; -} __attribute__((packed)); - -/* Define a struct flow_attr_spec_eth object as an array of at least - * "size" bytes. Room after the first index is normally used to store - * extra flow specifications. */ -#define FLOW_ATTR_SPEC_ETH(name, size) \ - struct flow_attr_spec_eth name \ - [((size) / sizeof(struct flow_attr_spec_eth)) + \ - !!((size) % sizeof(struct flow_attr_spec_eth))] - -/* Initialization data for hash RX queue. */ -struct hash_rxq_init { - uint64_t hash_fields; /* Fields that participate in the hash. */ - uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */ - unsigned int flow_priority; /* Flow priority to use. */ - union { - struct { - enum ibv_exp_flow_spec_type type; - uint16_t size; - } hdr; - struct ibv_exp_flow_spec_tcp_udp tcp_udp; - struct ibv_exp_flow_spec_ipv4 ipv4; - struct ibv_exp_flow_spec_ipv6 ipv6; - struct ibv_exp_flow_spec_eth eth; - } flow_spec; /* Flow specification template. */ - const struct hash_rxq_init *underlayer; /* Pointer to underlayer. */ -}; - -/* Initialization data for indirection table. */ -struct ind_table_init { - unsigned int max_size; /* Maximum number of WQs. */ - /* Hash RX queues using this table. */ - unsigned int hash_types; - unsigned int hash_types_n; }; -/* Initialization data for special flows. */ -struct special_flow_init { - uint8_t dst_mac_val[6]; - uint8_t dst_mac_mask[6]; - unsigned int hash_types; - unsigned int per_vlan:1; +/* RX queue control descriptor. */ +struct mlx5_rxq_ctrl { + LIST_ENTRY(mlx5_rxq_ctrl) next; /* Pointer to the next element. */ + rte_atomic32_t refcnt; /* Reference counter. */ + struct mlx5_rxq_ibv *ibv; /* Verbs elements. */ + struct priv *priv; /* Back pointer to private data. */ + struct mlx5_rxq_data rxq; /* Data path structure. */ + unsigned int socket; /* CPU socket ID for allocations. */ + unsigned int irq:1; /* Whether IRQ is enabled. */ + uint16_t idx; /* Queue index. */ + uint32_t flow_mark_n; /* Number of Mark/Flag flows using this Queue. */ + uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels counters. */ }; -enum hash_rxq_flow_type { - HASH_RXQ_FLOW_TYPE_PROMISC, - HASH_RXQ_FLOW_TYPE_ALLMULTI, - HASH_RXQ_FLOW_TYPE_BROADCAST, - HASH_RXQ_FLOW_TYPE_IPV6MULTI, - HASH_RXQ_FLOW_TYPE_MAC, +/* Indirection table. */ +struct mlx5_ind_table_ibv { + LIST_ENTRY(mlx5_ind_table_ibv) next; /* Pointer to the next element. */ + rte_atomic32_t refcnt; /* Reference counter. */ + struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */ + uint32_t queues_n; /**< Number of queues in the list. */ + uint16_t queues[]; /**< Queue list. */ }; -#ifndef NDEBUG -static inline const char * -hash_rxq_flow_type_str(enum hash_rxq_flow_type flow_type) -{ - switch (flow_type) { - case HASH_RXQ_FLOW_TYPE_PROMISC: - return "promiscuous"; - case HASH_RXQ_FLOW_TYPE_ALLMULTI: - return "allmulticast"; - case HASH_RXQ_FLOW_TYPE_BROADCAST: - return "broadcast"; - case HASH_RXQ_FLOW_TYPE_IPV6MULTI: - return "IPv6 multicast"; - case HASH_RXQ_FLOW_TYPE_MAC: - return "MAC"; - } - return NULL; -} -#endif /* NDEBUG */ - -struct hash_rxq { - struct priv *priv; /* Back pointer to private data. */ - struct ibv_qp *qp; /* Hash RX QP. */ - enum hash_rxq_type type; /* Hash RX queue type. */ - /* MAC flow steering rules, one per VLAN ID. */ - struct ibv_exp_flow *mac_flow - [MLX5_MAX_MAC_ADDRESSES][MLX5_MAX_VLAN_IDS]; - struct ibv_exp_flow *special_flow - [MLX5_MAX_SPECIAL_FLOWS][MLX5_MAX_VLAN_IDS]; +/* Hash Rx queue. */ +struct mlx5_hrxq { + LIST_ENTRY(mlx5_hrxq) next; /* Pointer to the next element. */ + rte_atomic32_t refcnt; /* Reference counter. */ + struct mlx5_ind_table_ibv *ind_table; /* Indirection table. */ + struct ibv_qp *qp; /* Verbs queue pair. */ + uint64_t hash_fields; /* Verbs Hash fields. */ + uint32_t rss_key_len; /* Hash key length in bytes. */ + uint8_t rss_key[]; /* Hash key. */ }; /* TX queue descriptor. */ __extension__ -struct txq { +struct mlx5_txq_data { uint16_t elts_head; /* Current counter in (*elts)[]. */ uint16_t elts_tail; /* Counter of first element awaiting completion. */ uint16_t elts_comp; /* Counter since last completion request. */ uint16_t mpw_comp; /* WQ index since last completion request. */ uint16_t cq_ci; /* Consumer index for completion queue. */ +#ifndef NDEBUG uint16_t cq_pi; /* Producer index for completion queue. */ +#endif uint16_t wqe_ci; /* Consumer index for work queue. */ uint16_t wqe_pi; /* Producer index for work queue. */ uint16_t elts_n:4; /* (*elts)[] length (in log2). */ uint16_t cqe_n:4; /* Number of CQ elements (in log2). */ uint16_t wqe_n:4; /* Number of of WQ elements (in log2). */ - uint16_t inline_en:1; /* When set inline is enabled. */ 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. */ uint32_t qp_num_8s; /* QP number shifted by 8. */ - uint32_t flags; /* Flags for Tx Queue. */ + uint64_t offloads; /* Offloads for Tx Queue. */ + struct mlx5_mr_ctrl mr_ctrl; /* MR control descriptor. */ volatile struct mlx5_cqe (*cqes)[]; /* Completion queue. */ volatile void *wqes; /* Work queue (use volatile to write into). */ volatile uint32_t *qp_db; /* Work queue doorbell. */ volatile uint32_t *cq_db; /* Completion queue doorbell. */ - volatile void *bf_reg; /* Blueflame register. */ - struct { - uintptr_t start; /* Start address of MR */ - uintptr_t end; /* End address of MR */ - struct ibv_mr *mr; /* Memory Region (for mp). */ - uint32_t lkey; /* htonl(mr->lkey) */ - } mp2mr[MLX5_PMD_TX_MP_CACHE]; /* MP to MR translation table. */ - uint16_t mr_cache_idx; /* Index of last hit entry. */ + volatile void *bf_reg; /* Blueflame register remapped. */ struct rte_mbuf *(*elts)[]; /* TX elements. */ struct mlx5_txq_stats stats; /* TX queue counters. */ +#ifndef RTE_ARCH_64 + rte_spinlock_t *uar_lock; + /* UAR access lock required for 32bit implementations */ +#endif } __rte_cache_aligned; -/* TX queue control descriptor. */ -struct txq_ctrl { - struct priv *priv; /* Back pointer to private data. */ +/* Verbs Rx queue elements. */ +struct mlx5_txq_ibv { + LIST_ENTRY(mlx5_txq_ibv) next; /* Pointer to the next element. */ + rte_atomic32_t refcnt; /* Reference counter. */ + struct mlx5_txq_ctrl *txq_ctrl; /* Pointer to the control queue. */ struct ibv_cq *cq; /* Completion Queue. */ struct ibv_qp *qp; /* Queue Pair. */ +}; + +/* TX queue control descriptor. */ +struct mlx5_txq_ctrl { + LIST_ENTRY(mlx5_txq_ctrl) next; /* Pointer to the next element. */ + rte_atomic32_t refcnt; /* Reference counter. */ unsigned int socket; /* CPU socket ID for allocations. */ - struct txq txq; /* Data path structure. */ + unsigned int max_inline_data; /* Max inline data. */ + unsigned int max_tso_header; /* Max TSO header size. */ + struct mlx5_txq_ibv *ibv; /* Verbs queue object. */ + struct priv *priv; /* Back pointer to private data. */ + struct mlx5_txq_data txq; /* Data path structure. */ + off_t uar_mmap_offset; /* UAR mmap offset for non-primary process. */ + volatile void *bf_reg_orig; /* Blueflame register from verbs. */ + uint16_t idx; /* Queue index. */ }; /* mlx5_rxq.c */ -extern const struct hash_rxq_init hash_rxq_init[]; -extern const unsigned int hash_rxq_init_n; - extern uint8_t rss_hash_default_key[]; -extern const size_t rss_hash_default_key_len; - -size_t priv_flow_attr(struct priv *, struct ibv_exp_flow_attr *, - size_t, enum hash_rxq_type); -int priv_create_hash_rxqs(struct priv *); -void priv_destroy_hash_rxqs(struct priv *); -int priv_allow_flow_type(struct priv *, enum hash_rxq_flow_type); -int priv_rehash_flows(struct priv *); -void rxq_cleanup(struct rxq_ctrl *); -int mlx5_rx_queue_setup(struct rte_eth_dev *, uint16_t, uint16_t, unsigned int, - const struct rte_eth_rxconf *, struct rte_mempool *); -void mlx5_rx_queue_release(void *); -uint16_t mlx5_rx_burst_secondary_setup(void *, struct rte_mbuf **, uint16_t); -int priv_rx_intr_vec_enable(struct priv *priv); -void priv_rx_intr_vec_disable(struct priv *priv); -#ifdef HAVE_UPDATE_CQ_CI + +int mlx5_check_mprq_support(struct rte_eth_dev *dev); +int mlx5_rxq_mprq_enabled(struct mlx5_rxq_data *rxq); +int mlx5_mprq_enabled(struct rte_eth_dev *dev); +int mlx5_mprq_free_mp(struct rte_eth_dev *dev); +int mlx5_mprq_alloc_mp(struct rte_eth_dev *dev); +void mlx5_rxq_cleanup(struct mlx5_rxq_ctrl *rxq_ctrl); +int mlx5_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, + unsigned int socket, const struct rte_eth_rxconf *conf, + struct rte_mempool *mp); +void mlx5_rx_queue_release(void *dpdk_rxq); +int mlx5_rx_intr_vec_enable(struct rte_eth_dev *dev); +void mlx5_rx_intr_vec_disable(struct rte_eth_dev *dev); int mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id); int mlx5_rx_intr_disable(struct rte_eth_dev *dev, uint16_t rx_queue_id); -#endif /* HAVE_UPDATE_CQ_CI */ +struct mlx5_rxq_ibv *mlx5_rxq_ibv_new(struct rte_eth_dev *dev, uint16_t idx); +struct mlx5_rxq_ibv *mlx5_rxq_ibv_get(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_rxq_ibv_release(struct mlx5_rxq_ibv *rxq_ibv); +int mlx5_rxq_ibv_releasable(struct mlx5_rxq_ibv *rxq_ibv); +struct mlx5_rxq_ibv *mlx5_rxq_ibv_drop_new(struct rte_eth_dev *dev); +void mlx5_rxq_ibv_drop_release(struct rte_eth_dev *dev); +int mlx5_rxq_ibv_verify(struct rte_eth_dev *dev); +struct mlx5_rxq_ctrl *mlx5_rxq_new(struct rte_eth_dev *dev, uint16_t idx, + uint16_t desc, unsigned int socket, + const struct rte_eth_rxconf *conf, + struct rte_mempool *mp); +struct mlx5_rxq_ctrl *mlx5_rxq_get(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_rxq_release(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_rxq_releasable(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_rxq_verify(struct rte_eth_dev *dev); +int rxq_alloc_elts(struct mlx5_rxq_ctrl *rxq_ctrl); +int rxq_alloc_mprq_buf(struct mlx5_rxq_ctrl *rxq_ctrl); +struct mlx5_ind_table_ibv *mlx5_ind_table_ibv_new(struct rte_eth_dev *dev, + const uint16_t *queues, + uint32_t queues_n); +struct mlx5_ind_table_ibv *mlx5_ind_table_ibv_get(struct rte_eth_dev *dev, + const uint16_t *queues, + uint32_t queues_n); +int mlx5_ind_table_ibv_release(struct rte_eth_dev *dev, + struct mlx5_ind_table_ibv *ind_tbl); +int mlx5_ind_table_ibv_verify(struct rte_eth_dev *dev); +struct mlx5_ind_table_ibv *mlx5_ind_table_ibv_drop_new(struct rte_eth_dev *dev); +void mlx5_ind_table_ibv_drop_release(struct rte_eth_dev *dev); +struct mlx5_hrxq *mlx5_hrxq_new(struct rte_eth_dev *dev, + const uint8_t *rss_key, uint32_t rss_key_len, + uint64_t hash_fields, + const uint16_t *queues, uint32_t queues_n, + int tunnel __rte_unused); +struct mlx5_hrxq *mlx5_hrxq_get(struct rte_eth_dev *dev, + const uint8_t *rss_key, uint32_t rss_key_len, + uint64_t hash_fields, + const uint16_t *queues, uint32_t queues_n); +int mlx5_hrxq_release(struct rte_eth_dev *dev, struct mlx5_hrxq *hxrq); +int mlx5_hrxq_ibv_verify(struct rte_eth_dev *dev); +struct mlx5_hrxq *mlx5_hrxq_drop_new(struct rte_eth_dev *dev); +void mlx5_hrxq_drop_release(struct rte_eth_dev *dev); +uint64_t mlx5_get_rx_port_offloads(void); +uint64_t mlx5_get_rx_queue_offloads(struct rte_eth_dev *dev); /* mlx5_txq.c */ -void txq_cleanup(struct txq_ctrl *); -int txq_ctrl_setup(struct rte_eth_dev *, struct txq_ctrl *, uint16_t, - unsigned int, const struct rte_eth_txconf *); -int mlx5_tx_queue_setup(struct rte_eth_dev *, uint16_t, uint16_t, unsigned int, - const struct rte_eth_txconf *); -void mlx5_tx_queue_release(void *); -uint16_t mlx5_tx_burst_secondary_setup(void *, struct rte_mbuf **, uint16_t); +int mlx5_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, + unsigned int socket, const struct rte_eth_txconf *conf); +void mlx5_tx_queue_release(void *dpdk_txq); +int mlx5_tx_uar_remap(struct rte_eth_dev *dev, int fd); +struct mlx5_txq_ibv *mlx5_txq_ibv_new(struct rte_eth_dev *dev, uint16_t idx); +struct mlx5_txq_ibv *mlx5_txq_ibv_get(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_txq_ibv_release(struct mlx5_txq_ibv *txq_ibv); +int mlx5_txq_ibv_releasable(struct mlx5_txq_ibv *txq_ibv); +int mlx5_txq_ibv_verify(struct rte_eth_dev *dev); +struct mlx5_txq_ctrl *mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, + uint16_t desc, unsigned int socket, + const struct rte_eth_txconf *conf); +struct mlx5_txq_ctrl *mlx5_txq_get(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_txq_release(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_txq_releasable(struct rte_eth_dev *dev, uint16_t idx); +int mlx5_txq_verify(struct rte_eth_dev *dev); +void txq_alloc_elts(struct mlx5_txq_ctrl *txq_ctrl); +uint64_t mlx5_get_tx_port_offloads(struct rte_eth_dev *dev); /* 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); -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); -uint16_t mlx5_tx_burst_empw(void *, struct rte_mbuf **, uint16_t); -uint16_t mlx5_rx_burst(void *, struct rte_mbuf **, uint16_t); -uint16_t removed_tx_burst(void *, struct rte_mbuf **, uint16_t); -uint16_t removed_rx_burst(void *, struct rte_mbuf **, uint16_t); -int mlx5_rx_descriptor_status(void *, uint16_t); -int mlx5_tx_descriptor_status(void *, uint16_t); +void mlx5_set_cksum_table(void); +void mlx5_set_swp_types_table(void); +uint16_t mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t mlx5_tx_burst_mpw(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t mlx5_tx_burst_empw(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n); +void mlx5_mprq_buf_free_cb(void *addr, void *opaque); +void mlx5_mprq_buf_free(struct mlx5_mprq_buf *buf); +uint16_t mlx5_rx_burst_mprq(void *dpdk_rxq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t removed_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t removed_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, + uint16_t pkts_n); +int mlx5_rx_descriptor_status(void *rx_queue, uint16_t offset); +int mlx5_tx_descriptor_status(void *tx_queue, uint16_t offset); /* Vectorized version of mlx5_rxtx.c */ -int priv_check_raw_vec_tx_support(struct priv *); -int priv_check_vec_tx_support(struct priv *); -int rxq_check_vec_support(struct rxq *); -int priv_check_vec_rx_support(struct priv *); -void priv_prep_vec_rx_function(struct priv *); -uint16_t mlx5_tx_burst_raw_vec(void *, struct rte_mbuf **, uint16_t); -uint16_t mlx5_tx_burst_vec(void *, struct rte_mbuf **, uint16_t); -uint16_t mlx5_rx_burst_vec(void *, struct rte_mbuf **, uint16_t); +int mlx5_check_raw_vec_tx_support(struct rte_eth_dev *dev); +int mlx5_check_vec_tx_support(struct rte_eth_dev *dev); +int mlx5_rxq_check_vec_support(struct mlx5_rxq_data *rxq_data); +int mlx5_check_vec_rx_support(struct rte_eth_dev *dev); +uint16_t mlx5_tx_burst_raw_vec(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t mlx5_tx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); +uint16_t mlx5_rx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, + uint16_t pkts_n); /* mlx5_mr.c */ -struct ibv_mr *mlx5_mp2mr(struct ibv_pd *, struct rte_mempool *); -void txq_mp2mr_iter(struct rte_mempool *, void *); -uint32_t txq_mp2mr_reg(struct txq *, struct rte_mempool *, unsigned int); +void mlx5_mr_flush_local_cache(struct mlx5_mr_ctrl *mr_ctrl); +uint32_t mlx5_rx_addr2mr_bh(struct mlx5_rxq_data *rxq, uintptr_t addr); +uint32_t mlx5_tx_addr2mr_bh(struct mlx5_txq_data *txq, uintptr_t addr); +uint32_t mlx5_tx_update_ext_mp(struct mlx5_txq_data *txq, uintptr_t addr, + struct rte_mempool *mp); + +/** + * Provide safe 64bit store operation to mlx5 UAR region for both 32bit and + * 64bit architectures. + * + * @param val + * value to write in CPU endian format. + * @param addr + * Address to write to. + * @param lock + * Address of the lock to use for that UAR access. + */ +static __rte_always_inline void +__mlx5_uar_write64_relaxed(uint64_t val, volatile void *addr, + rte_spinlock_t *lock __rte_unused) +{ +#ifdef RTE_ARCH_64 + rte_write64_relaxed(val, addr); +#else /* !RTE_ARCH_64 */ + rte_spinlock_lock(lock); + rte_write32_relaxed(val, addr); + rte_io_wmb(); + rte_write32_relaxed(val >> 32, + (volatile void *)((volatile char *)addr + 4)); + rte_spinlock_unlock(lock); +#endif +} + +/** + * Provide safe 64bit store operation to mlx5 UAR region for both 32bit and + * 64bit architectures while guaranteeing the order of execution with the + * code being executed. + * + * @param val + * value to write in CPU endian format. + * @param addr + * Address to write to. + * @param lock + * Address of the lock to use for that UAR access. + */ +static __rte_always_inline void +__mlx5_uar_write64(uint64_t val, volatile void *addr, rte_spinlock_t *lock) +{ + rte_io_wmb(); + __mlx5_uar_write64_relaxed(val, addr, lock); +} + +/* Assist macros, used instead of directly calling the functions they wrap. */ +#ifdef RTE_ARCH_64 +#define mlx5_uar_write64_relaxed(val, dst, lock) \ + __mlx5_uar_write64_relaxed(val, dst, NULL) +#define mlx5_uar_write64(val, dst, lock) __mlx5_uar_write64(val, dst, NULL) +#else +#define mlx5_uar_write64_relaxed(val, dst, lock) \ + __mlx5_uar_write64_relaxed(val, dst, lock) +#define mlx5_uar_write64(val, dst, lock) __mlx5_uar_write64(val, dst, lock) +#endif #ifndef NDEBUG /** @@ -373,7 +437,7 @@ static inline int check_cqe_seen(volatile struct mlx5_cqe *cqe) { static const uint8_t magic[] = "seen"; - volatile uint8_t (*buf)[sizeof(cqe->rsvd0)] = &cqe->rsvd0; + volatile uint8_t (*buf)[sizeof(cqe->rsvd1)] = &cqe->rsvd1; int ret = 1; unsigned int i; @@ -419,16 +483,25 @@ check_cqe(volatile struct mlx5_cqe *cqe, if ((syndrome == MLX5_CQE_SYNDROME_LOCAL_LENGTH_ERR) || (syndrome == MLX5_CQE_SYNDROME_REMOTE_ABORTED_ERR)) return 0; - if (!check_cqe_seen(cqe)) - ERROR("unexpected CQE error %u (0x%02x)" - " syndrome 0x%02x", - op_code, op_code, syndrome); + if (!check_cqe_seen(cqe)) { + DRV_LOG(ERR, + "unexpected CQE error %u (0x%02x) syndrome" + " 0x%02x", + op_code, op_code, syndrome); + rte_hexdump(stderr, "MLX5 Error CQE:", + (const void *)((uintptr_t)err_cqe), + sizeof(*err_cqe)); + } return 1; } else if ((op_code != MLX5_CQE_RESP_SEND) && (op_code != MLX5_CQE_REQ)) { - if (!check_cqe_seen(cqe)) - ERROR("unexpected CQE opcode %u (0x%02x)", - op_code, op_code); + if (!check_cqe_seen(cqe)) { + DRV_LOG(ERR, "unexpected CQE opcode %u (0x%02x)", + op_code, op_code); + rte_hexdump(stderr, "MLX5 CQE:", + (const void *)((uintptr_t)cqe), + sizeof(*cqe)); + } return 1; } #endif /* NDEBUG */ @@ -447,7 +520,7 @@ check_cqe(volatile struct mlx5_cqe *cqe, * WQE address. */ static inline uintptr_t * -tx_mlx5_wqe(struct txq *txq, uint16_t ci) +tx_mlx5_wqe(struct mlx5_txq_data *txq, uint16_t ci) { ci &= ((1 << txq->wqe_n) - 1); return (uintptr_t *)((uintptr_t)txq->wqes + ci * MLX5_WQE_SIZE); @@ -462,7 +535,7 @@ tx_mlx5_wqe(struct txq *txq, uint16_t ci) * Pointer to TX queue structure. */ static __rte_always_inline void -mlx5_tx_complete(struct txq *txq) +mlx5_tx_complete(struct mlx5_txq_data *txq) { const uint16_t elts_n = 1 << txq->elts_n; const uint16_t elts_m = elts_n - 1; @@ -483,13 +556,18 @@ mlx5_tx_complete(struct txq *txq) #ifndef NDEBUG if ((MLX5_CQE_OPCODE(cqe->op_own) == MLX5_CQE_RESP_ERR) || (MLX5_CQE_OPCODE(cqe->op_own) == MLX5_CQE_REQ_ERR)) { - if (!check_cqe_seen(cqe)) - ERROR("unexpected error CQE, TX stopped"); + if (!check_cqe_seen(cqe)) { + DRV_LOG(ERR, "unexpected error CQE, Tx stopped"); + rte_hexdump(stderr, "MLX5 TXQ:", + (const void *)((uintptr_t)txq->wqes), + ((1 << txq->wqe_n) * + MLX5_WQE_SIZE)); + } return; } #endif /* NDEBUG */ ++cq_ci; - txq->wqe_pi = ntohs(cqe->wqe_counter); + txq->wqe_pi = rte_be_to_cpu_16(cqe->wqe_counter); ctrl = (volatile struct mlx5_wqe_ctrl *) tx_mlx5_wqe(txq, txq->wqe_pi); elts_tail = ctrl->ctrl3; @@ -526,13 +604,13 @@ mlx5_tx_complete(struct txq *txq) txq->cq_ci = cq_ci; txq->elts_tail = elts_tail; /* Update the consumer index. */ - rte_wmb(); - *txq->cq_db = htonl(cq_ci); + rte_compiler_barrier(); + *txq->cq_db = rte_cpu_to_be_32(cq_ci); } /** - * Get Memory Pool (MP) from mbuf. If mbuf is indirect, the pool from which - * the cloned mbuf is allocated is returned instead. + * Get Memory Pool (MP) from mbuf. If mbuf is indirect, the pool from which the + * cloned mbuf is allocated is returned instead. * * @param buf * Pointer to mbuf. @@ -541,7 +619,7 @@ mlx5_tx_complete(struct txq *txq) * Memory pool where data is located for given mbuf. */ static struct rte_mempool * -mlx5_tx_mb2mp(struct rte_mbuf *buf) +mlx5_mb2mp(struct rte_mbuf *buf) { if (unlikely(RTE_MBUF_INDIRECT(buf))) return rte_mbuf_from_indirect(buf)->pool; @@ -549,64 +627,263 @@ mlx5_tx_mb2mp(struct rte_mbuf *buf) } /** - * Get Memory Region (MR) <-> rte_mbuf association from txq->mp2mr[]. - * Add MP to txq->mp2mr[] if it's not registered yet. If mp2mr[] is full, - * remove an entry first. + * Query LKey from a packet buffer for Rx. No need to flush local caches for Rx + * as mempool is pre-configured and static. + * + * @param rxq + * Pointer to Rx queue structure. + * @param addr + * Address to search. + * + * @return + * Searched LKey on success, UINT32_MAX on no match. + */ +static __rte_always_inline uint32_t +mlx5_rx_addr2mr(struct mlx5_rxq_data *rxq, uintptr_t addr) +{ + struct mlx5_mr_ctrl *mr_ctrl = &rxq->mr_ctrl; + uint32_t lkey; + + /* Linear search on MR cache array. */ + lkey = mlx5_mr_lookup_cache(mr_ctrl->cache, &mr_ctrl->mru, + MLX5_MR_CACHE_N, addr); + if (likely(lkey != UINT32_MAX)) + return lkey; + /* Take slower bottom-half (Binary Search) on miss. */ + return mlx5_rx_addr2mr_bh(rxq, addr); +} + +#define mlx5_rx_mb2mr(rxq, mb) mlx5_rx_addr2mr(rxq, (uintptr_t)((mb)->buf_addr)) + +/** + * Query LKey from a packet buffer for Tx. If not found, add the mempool. * * @param txq - * Pointer to TX queue structure. - * @param[in] mp - * Memory Pool for which a Memory Region lkey must be returned. + * Pointer to Tx queue structure. + * @param addr + * Address to search. * * @return - * mr->lkey on success, (uint32_t)-1 on failure. + * Searched LKey on success, UINT32_MAX on no match. */ static __rte_always_inline uint32_t -mlx5_tx_mb2mr(struct txq *txq, struct rte_mbuf *mb) +mlx5_tx_addr2mr(struct mlx5_txq_data *txq, uintptr_t addr) { - uint16_t i = txq->mr_cache_idx; - uintptr_t addr = rte_pktmbuf_mtod(mb, uintptr_t); - - assert(i < RTE_DIM(txq->mp2mr)); - if (likely(txq->mp2mr[i].start <= addr && txq->mp2mr[i].end >= addr)) - return txq->mp2mr[i].lkey; - for (i = 0; (i != RTE_DIM(txq->mp2mr)); ++i) { - if (unlikely(txq->mp2mr[i].mr == NULL)) { - /* Unknown MP, add a new MR for it. */ - break; - } - if (txq->mp2mr[i].start <= addr && - txq->mp2mr[i].end >= addr) { - assert(txq->mp2mr[i].lkey != (uint32_t)-1); - assert(htonl(txq->mp2mr[i].mr->lkey) == - txq->mp2mr[i].lkey); - txq->mr_cache_idx = i; - return txq->mp2mr[i].lkey; - } + struct mlx5_mr_ctrl *mr_ctrl = &txq->mr_ctrl; + uint32_t lkey; + + /* Check generation bit to see if there's any change on existing MRs. */ + if (unlikely(*mr_ctrl->dev_gen_ptr != mr_ctrl->cur_gen)) + mlx5_mr_flush_local_cache(mr_ctrl); + /* Linear search on MR cache array. */ + lkey = mlx5_mr_lookup_cache(mr_ctrl->cache, &mr_ctrl->mru, + MLX5_MR_CACHE_N, addr); + if (likely(lkey != UINT32_MAX)) + return lkey; + /* Take slower bottom-half (binary search) on miss. */ + return mlx5_tx_addr2mr_bh(txq, addr); +} + +static __rte_always_inline uint32_t +mlx5_tx_mb2mr(struct mlx5_txq_data *txq, struct rte_mbuf *mb) +{ + uintptr_t addr = (uintptr_t)mb->buf_addr; + uint32_t lkey = mlx5_tx_addr2mr(txq, addr); + + if (likely(lkey != UINT32_MAX)) + return lkey; + if (rte_errno == ENXIO) { + /* Mempool may have externally allocated memory. */ + lkey = mlx5_tx_update_ext_mp(txq, addr, mlx5_mb2mp(mb)); } - txq->mr_cache_idx = 0; - return txq_mp2mr_reg(txq, mlx5_tx_mb2mp(mb), i); + return lkey; } /** - * Ring TX queue doorbell. + * Ring TX queue doorbell and flush the update if requested. * * @param txq * Pointer to TX queue structure. * @param wqe * Pointer to the last WQE posted in the NIC. + * @param cond + * Request for write memory barrier after BlueFlame update. */ static __rte_always_inline void -mlx5_tx_dbrec(struct txq *txq, volatile struct mlx5_wqe *wqe) +mlx5_tx_dbrec_cond_wmb(struct mlx5_txq_data *txq, volatile struct mlx5_wqe *wqe, + int cond) { uint64_t *dst = (uint64_t *)((uintptr_t)txq->bf_reg); volatile uint64_t *src = ((volatile uint64_t *)wqe); - rte_wmb(); - *txq->qp_db = htonl(txq->wqe_ci); + rte_cio_wmb(); + *txq->qp_db = rte_cpu_to_be_32(txq->wqe_ci); /* Ensure ordering between DB record and BF copy. */ rte_wmb(); - *dst = *src; + mlx5_uar_write64_relaxed(*src, dst, txq->uar_lock); + if (cond) + rte_wmb(); +} + +/** + * Ring TX queue doorbell and flush the update by write memory barrier. + * + * @param txq + * Pointer to TX queue structure. + * @param wqe + * Pointer to the last WQE posted in the NIC. + */ +static __rte_always_inline void +mlx5_tx_dbrec(struct mlx5_txq_data *txq, volatile struct mlx5_wqe *wqe) +{ + mlx5_tx_dbrec_cond_wmb(txq, wqe, 1); +} + +/** + * 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 *offsets, uint8_t *swp_types) +{ + const uint64_t vlan = buf->ol_flags & PKT_TX_VLAN_PKT; + const uint64_t tunnel = buf->ol_flags & PKT_TX_TUNNEL_MASK; + const uint64_t tso = buf->ol_flags & PKT_TX_TCP_SEG; + const uint64_t csum_flags = buf->ol_flags & PKT_TX_L4_MASK; + const uint64_t inner_ip = + buf->ol_flags & (PKT_TX_IPV4 | PKT_TX_IPV6); + const uint64_t ol_flags_mask = PKT_TX_L4_MASK | PKT_TX_IPV6 | + PKT_TX_OUTER_IPV6; + uint16_t idx; + uint16_t off; + + if (likely(!txq->swp_en || (tunnel != PKT_TX_TUNNEL_UDP && + tunnel != PKT_TX_TUNNEL_IP))) + return; + /* + * The index should have: + * bit[0:1] = PKT_TX_L4_MASK + * bit[4] = PKT_TX_IPV6 + * bit[8] = PKT_TX_OUTER_IPV6 + * bit[9] = PKT_TX_OUTER_UDP + */ + idx = (buf->ol_flags & ol_flags_mask) >> 52; + if (tunnel == PKT_TX_TUNNEL_UDP) + idx |= 1 << 9; + *swp_types = mlx5_swp_types_table[idx]; + /* + * Set offsets for SW parser. Since ConnectX-5, SW parser just + * complements HW parser. SW parser starts to engage only if HW parser + * can't reach a header. For the older devices, HW parser will not kick + * in if any of SWP offsets is set. Therefore, all of the L3 offsets + * should be set regardless of HW offload. + */ + off = buf->outer_l2_len + (vlan ? sizeof(struct vlan_hdr) : 0); + offsets[1] = off >> 1; /* Outer L3 offset. */ + off += buf->outer_l3_len; + if (tunnel == PKT_TX_TUNNEL_UDP) + offsets[0] = off >> 1; /* Outer L4 offset. */ + if (inner_ip) { + off += buf->l2_len; + offsets[3] = off >> 1; /* Inner L3 offset. */ + if (csum_flags == PKT_TX_TCP_CKSUM || tso || + csum_flags == PKT_TX_UDP_CKSUM) { + off += buf->l3_len; + offsets[2] = off >> 1; /* Inner L4 offset. */ + } + } +} + +/** + * Convert the Checksum offloads to Verbs. + * + * @param buf + * Pointer to the mbuf. + * + * @return + * Converted checksum flags. + */ +static __rte_always_inline uint8_t +txq_ol_cksum_to_cs(struct rte_mbuf *buf) +{ + uint32_t idx; + uint8_t is_tunnel = !!(buf->ol_flags & PKT_TX_TUNNEL_MASK); + const uint64_t ol_flags_mask = PKT_TX_TCP_SEG | PKT_TX_L4_MASK | + PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM; + + /* + * 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]; +} + +/** + * Count the number of contiguous single segment packets. + * + * @param pkts + * Pointer to array of packets. + * @param pkts_n + * Number of packets. + * + * @return + * Number of contiguous single segment packets. + */ +static __rte_always_inline unsigned int +txq_count_contig_single_seg(struct rte_mbuf **pkts, uint16_t pkts_n) +{ + unsigned int pos; + + if (!pkts_n) + return 0; + /* Count the number of contiguous single segment packets. */ + for (pos = 0; pos < pkts_n; ++pos) + if (NB_SEGS(pkts[pos]) > 1) + break; + return pos; +} + +/** + * Count the number of contiguous multi-segment packets. + * + * @param pkts + * Pointer to array of packets. + * @param pkts_n + * Number of packets. + * + * @return + * Number of contiguous multi-segment packets. + */ +static __rte_always_inline unsigned int +txq_count_contig_multi_seg(struct rte_mbuf **pkts, uint16_t pkts_n) +{ + unsigned int pos; + + if (!pkts_n) + return 0; + /* Count the number of contiguous multi-segment packets. */ + for (pos = 0; pos < pkts_n; ++pos) + if (NB_SEGS(pkts[pos]) == 1) + break; + return pos; } #endif /* RTE_PMD_MLX5_RXTX_H_ */