diff options
Diffstat (limited to 'drivers/net/mlx5/mlx5_rxtx.h')
| -rw-r--r-- | drivers/net/mlx5/mlx5_rxtx.h | 538 |
1 files changed, 354 insertions, 184 deletions
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h index d7e89055..48ed2b20 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: BSD-3-Clause * Copyright 2015 6WIND S.A. - * Copyright 2015 Mellanox. + * Copyright 2015 Mellanox Technologies, Ltd */ #ifndef RTE_PMD_MLX5_RXTX_H_ @@ -26,13 +26,19 @@ #include <rte_common.h> #include <rte_hexdump.h> #include <rte_atomic.h> +#include <rte_spinlock.h> +#include <rte_io.h> #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 @@ -54,17 +60,6 @@ struct mlx5_txq_stats { struct priv; -/* Memory region queue object. */ -struct mlx5_mr { - LIST_ENTRY(mlx5_mr) next; /**< Pointer to the next element. */ - rte_atomic32_t refcnt; /*<< Reference counter. */ - uint32_t lkey; /*<< rte_cpu_to_be_32(mr->lkey) */ - uintptr_t start; /* Start address of MR */ - uintptr_t end; /* End address of MR */ - struct ibv_mr *mr; /*<< Memory Region. */ - struct rte_mempool *mp; /*<< Memory Pool. */ -}; - /* Compressed CQE context. */ struct rxq_zip { uint16_t ai; /* Array index. */ @@ -74,10 +69,19 @@ 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 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. */ @@ -86,24 +90,41 @@ struct mlx5_rxq_data { unsigned int elts_n:4; /* Log 2 of Mbufs. */ unsigned int rss_hash:1; /* RSS hash result is enabled. */ unsigned int mark:1; /* Marked flow available on the queue. */ - unsigned int :15; /* Remaining bits. */ + 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 port_id; uint16_t rq_ci; + uint16_t consumed_strd; /* Number of consumed strides in WQE. */ uint16_t rq_pi; uint16_t cq_ci; - volatile struct mlx5_wqe_data_seg(*wqes)[]; + 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; /* Verbs Rx queue elements. */ @@ -114,18 +135,20 @@ struct mlx5_rxq_ibv { struct ibv_cq *cq; /* Completion Queue. */ struct ibv_wq *wq; /* Work Queue. */ struct ibv_comp_channel *channel; - struct mlx5_mr *mr; /* Memory Region (for mp). */ }; /* 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 priv *priv; /* Back pointer to private data. */ 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. */ }; /* Indirection table. */ @@ -133,7 +156,7 @@ 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. */ - uint16_t queues_n; /**< Number of queues in the list. */ + uint32_t queues_n; /**< Number of queues in the list. */ uint16_t queues[]; /**< Queue list. */ }; @@ -144,7 +167,7 @@ struct mlx5_hrxq { struct mlx5_ind_table_ibv *ind_table; /* Indirection table. */ struct ibv_qp *qp; /* Verbs queue pair. */ uint64_t hash_fields; /* Verbs Hash fields. */ - uint8_t rss_key_len; /* Hash key length in bytes. */ + uint32_t rss_key_len; /* Hash key length in bytes. */ uint8_t rss_key[]; /* Hash key. */ }; @@ -167,26 +190,31 @@ 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. */ - uint16_t mr_cache_idx; /* Index of last hit entry. */ uint32_t qp_num_8s; /* QP number shifted by 8. */ 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 remapped. */ - struct mlx5_mr *mp2mr[MLX5_PMD_TX_MP_CACHE]; /* MR translation table. */ 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; /* 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. */ }; @@ -195,112 +223,203 @@ struct mlx5_txq_ibv { struct mlx5_txq_ctrl { LIST_ENTRY(mlx5_txq_ctrl) next; /* Pointer to the next element. */ rte_atomic32_t refcnt; /* Reference counter. */ - struct priv *priv; /* Back pointer to private data. */ unsigned int socket; /* CPU socket ID for allocations. */ 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 uint8_t rss_hash_default_key[]; -extern const size_t rss_hash_default_key_len; - -void mlx5_rxq_cleanup(struct mlx5_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 *); -int priv_rx_intr_vec_enable(struct priv *priv); -void priv_rx_intr_vec_disable(struct priv *priv); + +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); -struct mlx5_rxq_ibv *mlx5_priv_rxq_ibv_new(struct priv *, uint16_t); -struct mlx5_rxq_ibv *mlx5_priv_rxq_ibv_get(struct priv *, uint16_t); -int mlx5_priv_rxq_ibv_release(struct priv *, struct mlx5_rxq_ibv *); -int mlx5_priv_rxq_ibv_releasable(struct priv *, struct mlx5_rxq_ibv *); -int mlx5_priv_rxq_ibv_verify(struct priv *); -struct mlx5_rxq_ctrl *mlx5_priv_rxq_new(struct priv *, uint16_t, - uint16_t, unsigned int, - const struct rte_eth_rxconf *, - struct rte_mempool *); -struct mlx5_rxq_ctrl *mlx5_priv_rxq_get(struct priv *, uint16_t); -int mlx5_priv_rxq_release(struct priv *, uint16_t); -int mlx5_priv_rxq_releasable(struct priv *, uint16_t); -int mlx5_priv_rxq_verify(struct priv *); -int rxq_alloc_elts(struct mlx5_rxq_ctrl *); -struct mlx5_ind_table_ibv *mlx5_priv_ind_table_ibv_new(struct priv *, - uint16_t [], - uint16_t); -struct mlx5_ind_table_ibv *mlx5_priv_ind_table_ibv_get(struct priv *, - uint16_t [], - uint16_t); -int mlx5_priv_ind_table_ibv_release(struct priv *, struct mlx5_ind_table_ibv *); -int mlx5_priv_ind_table_ibv_verify(struct priv *); -struct mlx5_hrxq *mlx5_priv_hrxq_new(struct priv *, uint8_t *, uint8_t, - uint64_t, uint16_t [], uint16_t); -struct mlx5_hrxq *mlx5_priv_hrxq_get(struct priv *, uint8_t *, uint8_t, - uint64_t, uint16_t [], uint16_t); -int mlx5_priv_hrxq_release(struct priv *, struct mlx5_hrxq *); -int mlx5_priv_hrxq_ibv_verify(struct priv *); -uint64_t mlx5_priv_get_rx_port_offloads(struct priv *); -uint64_t mlx5_priv_get_rx_queue_offloads(struct priv *); +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 */ -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 *); -int priv_tx_uar_remap(struct priv *priv, int fd); -struct mlx5_txq_ibv *mlx5_priv_txq_ibv_new(struct priv *, uint16_t); -struct mlx5_txq_ibv *mlx5_priv_txq_ibv_get(struct priv *, uint16_t); -int mlx5_priv_txq_ibv_release(struct priv *, struct mlx5_txq_ibv *); -int mlx5_priv_txq_ibv_releasable(struct priv *, struct mlx5_txq_ibv *); -int mlx5_priv_txq_ibv_verify(struct priv *); -struct mlx5_txq_ctrl *mlx5_priv_txq_new(struct priv *, uint16_t, - uint16_t, unsigned int, - const struct rte_eth_txconf *); -struct mlx5_txq_ctrl *mlx5_priv_txq_get(struct priv *, uint16_t); -int mlx5_priv_txq_release(struct priv *, uint16_t); -int mlx5_priv_txq_releasable(struct priv *, uint16_t); -int mlx5_priv_txq_verify(struct priv *); -void txq_alloc_elts(struct mlx5_txq_ctrl *); -uint64_t mlx5_priv_get_tx_port_offloads(struct priv *); +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 *, struct rte_eth_dev *); -int priv_check_vec_tx_support(struct priv *, struct rte_eth_dev *); -int rxq_check_vec_support(struct mlx5_rxq_data *); -int priv_check_vec_rx_support(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 */ -void mlx5_mp2mr_iter(struct rte_mempool *, void *); -struct mlx5_mr *priv_txq_mp2mr_reg(struct priv *priv, struct mlx5_txq_data *, - struct rte_mempool *, unsigned int); -struct mlx5_mr *mlx5_txq_mp2mr_reg(struct mlx5_txq_data *, 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); + +/** + * 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 /** @@ -316,7 +435,7 @@ 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; @@ -363,9 +482,10 @@ check_cqe(volatile struct mlx5_cqe *cqe, (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); + 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)); @@ -374,8 +494,8 @@ check_cqe(volatile struct mlx5_cqe *cqe, } 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); + 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)); @@ -435,7 +555,7 @@ mlx5_tx_complete(struct mlx5_txq_data *txq) 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"); + DRV_LOG(ERR, "unexpected error CQE, Tx stopped"); rte_hexdump(stderr, "MLX5 TXQ:", (const void *)((uintptr_t)txq->wqes), ((1 << txq->wqe_n) * @@ -487,77 +607,65 @@ mlx5_tx_complete(struct mlx5_txq_data *txq) } /** - * Get Memory Pool (MP) from mbuf. If mbuf is indirect, the pool from which - * the cloned mbuf is allocated is returned instead. + * Query LKey from a packet buffer for Rx. No need to flush local caches for Rx + * as mempool is pre-configured and static. * - * @param buf - * Pointer to mbuf. + * @param rxq + * Pointer to Rx queue structure. + * @param addr + * Address to search. * * @return - * Memory pool where data is located for given mbuf. + * Searched LKey on success, UINT32_MAX on no match. */ -static struct rte_mempool * -mlx5_tx_mb2mp(struct rte_mbuf *buf) +static __rte_always_inline uint32_t +mlx5_rx_addr2mr(struct mlx5_rxq_data *rxq, uintptr_t addr) { - if (unlikely(RTE_MBUF_INDIRECT(buf))) - return rte_mbuf_from_indirect(buf)->pool; - return buf->pool; + 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)) + /** - * 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 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 mlx5_txq_data *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); - struct mlx5_mr *mr; - - 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] == NULL || - 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); - txq->mr_cache_idx = i; - return txq->mp2mr[i]->lkey; - } - } - mr = mlx5_txq_mp2mr_reg(txq, mlx5_tx_mb2mp(mb), i); - /* - * Request the reference to use in this queue, the original one is - * kept by the control plane. - */ - if (mr) { - rte_atomic32_inc(&mr->refcnt); - txq->mr_cache_idx = i >= RTE_DIM(txq->mp2mr) ? i - 1 : i; - return mr->lkey; - } else { - struct rte_mempool *mp = mlx5_tx_mb2mp(mb); - - WARN("Failed to register mempool 0x%p(%s)", - (void *)mp, mp->name); - } - return (uint32_t)-1; + 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); } +#define mlx5_tx_mb2mr(rxq, mb) mlx5_tx_addr2mr(rxq, (uintptr_t)((mb)->buf_addr)) + /** * Ring TX queue doorbell and flush the update if requested. * @@ -579,7 +687,7 @@ mlx5_tx_dbrec_cond_wmb(struct mlx5_txq_data *txq, volatile struct mlx5_wqe *wqe, *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(); } @@ -599,38 +707,100 @@ 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 *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 - * 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; + 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]; } /** |