X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_rxtx.h;h=e168dd46f9a97e2d88d93cc089a47b4547ed3b18;hb=835731f63b0a89deedc6878a7028844b643fb54e;hp=d443db4279c3f4a299a6ffc14d973376fc00e666;hpb=151cbe3aabf9e1a71e02827e5e1ff0814275019a;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h index d443db4279..e168dd46f9 100644 --- a/drivers/net/mlx5/mlx5_rxtx.h +++ b/drivers/net/mlx5/mlx5_rxtx.h @@ -17,169 +17,18 @@ #include #include #include -#include #include -#include -#include #include #include -#include "mlx5_defs.h" #include "mlx5_utils.h" #include "mlx5.h" #include "mlx5_autoconf.h" #include "mlx5_mr.h" - -/* Mbuf dynamic flag offset for inline. */ -extern uint64_t rte_net_mlx5_dynf_inline_mask; - -struct mlx5_txq_stats { -#ifdef MLX5_PMD_SOFT_COUNTERS - uint64_t opackets; /**< Total of successfully sent packets. */ - uint64_t obytes; /**< Total of successfully sent bytes. */ -#endif - uint64_t oerrors; /**< Total number of failed transmitted packets. */ -}; - struct mlx5_priv; -/* TX queue send local data. */ -__extension__ -struct mlx5_txq_local { - struct mlx5_wqe *wqe_last; /* last sent WQE pointer. */ - struct rte_mbuf *mbuf; /* first mbuf to process. */ - uint16_t pkts_copy; /* packets copied to elts. */ - uint16_t pkts_sent; /* packets sent. */ - uint16_t pkts_loop; /* packets sent on loop entry. */ - uint16_t elts_free; /* available elts remain. */ - uint16_t wqe_free; /* available wqe remain. */ - uint16_t mbuf_off; /* data offset in current mbuf. */ - uint16_t mbuf_nseg; /* number of remaining mbuf. */ - uint16_t mbuf_free; /* number of inline mbufs to free. */ -}; - -/* TX queue descriptor. */ -__extension__ -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; /* elts index since last completion request. */ - uint16_t elts_s; /* Number of mbuf elements. */ - uint16_t elts_m; /* Mask for mbuf elements indices. */ - /* Fields related to elts mbuf storage. */ - uint16_t wqe_ci; /* Consumer index for work queue. */ - uint16_t wqe_pi; /* Producer index for work queue. */ - uint16_t wqe_s; /* Number of WQ elements. */ - uint16_t wqe_m; /* Mask Number for WQ elements. */ - uint16_t wqe_comp; /* WQE index since last completion request. */ - uint16_t wqe_thres; /* WQE threshold to request completion in CQ. */ - /* WQ related fields. */ - uint16_t cq_ci; /* Consumer index for completion queue. */ - uint16_t cq_pi; /* Production index for completion queue. */ - uint16_t cqe_s; /* Number of CQ elements. */ - uint16_t cqe_m; /* Mask for CQ indices. */ - /* CQ related fields. */ - 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 WQ elements (in log2). */ - 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 vlan_en:1; /* VLAN insertion in WQE is supported. */ - uint16_t db_nc:1; /* Doorbell mapped to non-cached region. */ - uint16_t db_heu:1; /* Doorbell heuristic write barrier. */ - uint16_t fast_free:1; /* mbuf fast free on Tx is enabled. */ - uint16_t inlen_send; /* Ordinary send data inline size. */ - uint16_t inlen_empw; /* eMPW max packet size to inline. */ - uint16_t inlen_mode; /* Minimal data length to inline. */ - 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. */ - struct mlx5_wqe *wqes; /* Work queue. */ - struct mlx5_wqe *wqes_end; /* Work queue array limit. */ -#ifdef RTE_LIBRTE_MLX5_DEBUG - uint32_t *fcqs; /* Free completion queue (debug extended). */ -#else - uint16_t *fcqs; /* Free completion queue. */ -#endif - volatile struct mlx5_cqe *cqes; /* Completion queue. */ - volatile uint32_t *qp_db; /* Work queue doorbell. */ - volatile uint32_t *cq_db; /* Completion queue doorbell. */ - uint16_t port_id; /* Port ID of device. */ - uint16_t idx; /* Queue index. */ - uint64_t ts_mask; /* Timestamp flag dynamic mask. */ - int32_t ts_offset; /* Timestamp field dynamic offset. */ - struct mlx5_dev_ctx_shared *sh; /* Shared context. */ - 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 - struct rte_mbuf *elts[0]; - /* Storage for queued packets, must be the last field. */ -} __rte_cache_aligned; - -enum mlx5_txq_type { - MLX5_TXQ_TYPE_STANDARD, /* Standard Tx queue. */ - MLX5_TXQ_TYPE_HAIRPIN, /* Hairpin Rx queue. */ -}; - -/* TX queue control descriptor. */ -struct mlx5_txq_ctrl { - LIST_ENTRY(mlx5_txq_ctrl) next; /* Pointer to the next element. */ - uint32_t refcnt; /* Reference counter. */ - unsigned int socket; /* CPU socket ID for allocations. */ - enum mlx5_txq_type type; /* The txq ctrl type. */ - unsigned int max_inline_data; /* Max inline data. */ - unsigned int max_tso_header; /* Max TSO header size. */ - struct mlx5_txq_obj *obj; /* Verbs/DevX queue object. */ - struct mlx5_priv *priv; /* Back pointer to private data. */ - off_t uar_mmap_offset; /* UAR mmap offset for non-primary process. */ - void *bf_reg; /* BlueFlame register from Verbs. */ - uint16_t dump_file_n; /* Number of dump files. */ - struct rte_eth_hairpin_conf hairpin_conf; /* Hairpin configuration. */ - uint32_t hairpin_status; /* Hairpin binding status. */ - struct mlx5_txq_data txq; /* Data path structure. */ - /* Must be the last field in the structure, contains elts[]. */ -}; - -#define MLX5_TX_BFREG(txq) \ - (MLX5_PROC_PRIV((txq)->port_id)->uar_table[(txq)->idx]) - -/* mlx5_txq.c */ - -int mlx5_tx_queue_start(struct rte_eth_dev *dev, uint16_t queue_id); -int mlx5_tx_queue_stop(struct rte_eth_dev *dev, uint16_t queue_id); -int mlx5_tx_queue_start_primary(struct rte_eth_dev *dev, uint16_t queue_id); -int mlx5_tx_queue_stop_primary(struct rte_eth_dev *dev, uint16_t queue_id); -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); -int mlx5_tx_hairpin_queue_setup - (struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, - const struct rte_eth_hairpin_conf *hairpin_conf); -void mlx5_tx_queue_release(void *dpdk_txq); -void txq_uar_init(struct mlx5_txq_ctrl *txq_ctrl); -int mlx5_tx_uar_init_secondary(struct rte_eth_dev *dev, int fd); -void mlx5_tx_uar_uninit_secondary(struct rte_eth_dev *dev); -int mlx5_txq_obj_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_hairpin_new - (struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, - const struct rte_eth_hairpin_conf *hairpin_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); -void txq_free_elts(struct mlx5_txq_ctrl *txq_ctrl); -uint64_t mlx5_get_tx_port_offloads(struct rte_eth_dev *dev); -void mlx5_txq_dynf_timestamp_set(struct rte_eth_dev *dev); - /* mlx5_rxtx.c */ extern uint32_t mlx5_ptype_table[]; @@ -189,85 +38,21 @@ 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 removed_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, - uint16_t pkts_n); -int mlx5_tx_descriptor_status(void *tx_queue, uint16_t offset); void mlx5_dump_debug_information(const char *path, const char *title, const void *buf, unsigned int len); int mlx5_queue_state_modify_primary(struct rte_eth_dev *dev, const struct mlx5_mp_arg_queue_state_modify *sm); -void mlx5_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, - struct rte_eth_txq_info *qinfo); -int mlx5_tx_burst_mode_get(struct rte_eth_dev *dev, uint16_t tx_queue_id, - struct rte_eth_burst_mode *mode); +int mlx5_queue_state_modify(struct rte_eth_dev *dev, + struct mlx5_mp_arg_queue_state_modify *sm); /* mlx5_mr.c */ void mlx5_mr_flush_local_cache(struct mlx5_mr_ctrl *mr_ctrl); -uint32_t mlx5_tx_mb2mr_bh(struct mlx5_txq_data *txq, struct rte_mbuf *mb); -uint32_t mlx5_tx_update_ext_mp(struct mlx5_txq_data *txq, uintptr_t addr, - struct rte_mempool *mp); int mlx5_dma_map(struct rte_pci_device *pdev, void *addr, uint64_t iova, size_t len); int mlx5_dma_unmap(struct rte_pci_device *pdev, void *addr, uint64_t iova, size_t len); -/** - * 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, void *addr, - rte_spinlock_t *lock __rte_unused) -{ -#ifdef RTE_ARCH_64 - *(uint64_t *)addr = val; -#else /* !RTE_ARCH_64 */ - rte_spinlock_lock(lock); - *(uint32_t *)addr = val; - rte_io_wmb(); - *((uint32_t *)addr + 1) = val >> 32; - 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, 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 - /** * Get Memory Pool (MP) from mbuf. If mbuf is indirect, the pool from which the * cloned mbuf is allocated is returned instead. @@ -286,131 +71,4 @@ mlx5_mb2mp(struct rte_mbuf *buf) return buf->pool; } -/** - * Query LKey from a packet buffer for Tx. If not found, add the mempool. - * - * @param txq - * Pointer to Tx queue structure. - * @param addr - * Address to search. - * - * @return - * 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) -{ - struct mlx5_mr_ctrl *mr_ctrl = &txq->mr_ctrl; - uintptr_t addr = (uintptr_t)mb->buf_addr; - 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_lkey(mr_ctrl->cache, &mr_ctrl->mru, - MLX5_MR_CACHE_N, addr); - if (likely(lkey != UINT32_MAX)) - return lkey; - /* Take slower bottom-half on miss. */ - return mlx5_tx_mb2mr_bh(txq, mb); -} - -/** - * 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_cond_wmb(struct mlx5_txq_data *txq, volatile struct mlx5_wqe *wqe, - int cond) -{ - uint64_t *dst = MLX5_TX_BFREG(txq); - volatile uint64_t *src = ((volatile uint64_t *)wqe); - - rte_io_wmb(); - *txq->qp_db = rte_cpu_to_be_32(txq->wqe_ci); - /* Ensure ordering between DB record and BF copy. */ - rte_wmb(); - 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 timestamp from mbuf format to linear counter - * of Clock Queue completions (24 bits) - * - * @param sh - * Pointer to the device shared context to fetch Tx - * packet pacing timestamp and parameters. - * @param ts - * Timestamp from mbuf to convert. - * @return - * positive or zero value - completion ID to wait - * negative value - conversion error - */ -static __rte_always_inline int32_t -mlx5_txpp_convert_tx_ts(struct mlx5_dev_ctx_shared *sh, uint64_t mts) -{ - uint64_t ts, ci; - uint32_t tick; - - do { - /* - * Read atomically two uint64_t fields and compare lsb bits. - * It there is no match - the timestamp was updated in - * the service thread, data should be re-read. - */ - rte_compiler_barrier(); - ci = __atomic_load_n(&sh->txpp.ts.ci_ts, __ATOMIC_RELAXED); - ts = __atomic_load_n(&sh->txpp.ts.ts, __ATOMIC_RELAXED); - rte_compiler_barrier(); - if (!((ts ^ ci) << (64 - MLX5_CQ_INDEX_WIDTH))) - break; - } while (true); - /* Perform the skew correction, positive value to send earlier. */ - mts -= sh->txpp.skew; - mts -= ts; - if (unlikely(mts >= UINT64_MAX / 2)) { - /* We have negative integer, mts is in the past. */ - __atomic_fetch_add(&sh->txpp.err_ts_past, - 1, __ATOMIC_RELAXED); - return -1; - } - tick = sh->txpp.tick; - MLX5_ASSERT(tick); - /* Convert delta to completions, round up. */ - mts = (mts + tick - 1) / tick; - if (unlikely(mts >= (1 << MLX5_CQ_INDEX_WIDTH) / 2 - 1)) { - /* We have mts is too distant future. */ - __atomic_fetch_add(&sh->txpp.err_ts_future, - 1, __ATOMIC_RELAXED); - return -1; - } - mts <<= 64 - MLX5_CQ_INDEX_WIDTH; - ci += mts; - ci >>= 64 - MLX5_CQ_INDEX_WIDTH; - return ci; -} - #endif /* RTE_PMD_MLX5_RXTX_H_ */