diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_rx.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 165 |
1 files changed, 84 insertions, 81 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index f86e4804e83e..3dde5c7e0739 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -52,40 +52,45 @@ static inline bool mlx5e_rx_hw_stamp(struct hwtstamp_config *config) return config->rx_filter == HWTSTAMP_FILTER_ALL; } -static inline void mlx5e_read_cqe_slot(struct mlx5e_cq *cq, u32 cqcc, - void *data) +static inline void mlx5e_read_cqe_slot(struct mlx5_cqwq *wq, + u32 cqcc, void *data) { - u32 ci = mlx5_cqwq_ctr2ix(&cq->wq, cqcc); + u32 ci = mlx5_cqwq_ctr2ix(wq, cqcc); - memcpy(data, mlx5_cqwq_get_wqe(&cq->wq, ci), sizeof(struct mlx5_cqe64)); + memcpy(data, mlx5_cqwq_get_wqe(wq, ci), sizeof(struct mlx5_cqe64)); } static inline void mlx5e_read_title_slot(struct mlx5e_rq *rq, - struct mlx5e_cq *cq, u32 cqcc) + struct mlx5_cqwq *wq, + u32 cqcc) { - mlx5e_read_cqe_slot(cq, cqcc, &cq->title); - cq->decmprs_left = be32_to_cpu(cq->title.byte_cnt); - cq->decmprs_wqe_counter = be16_to_cpu(cq->title.wqe_counter); + struct mlx5e_cq_decomp *cqd = &rq->cqd; + struct mlx5_cqe64 *title = &cqd->title; + + mlx5e_read_cqe_slot(wq, cqcc, title); + cqd->left = be32_to_cpu(title->byte_cnt); + cqd->wqe_counter = be16_to_cpu(title->wqe_counter); rq->stats->cqe_compress_blks++; } -static inline void mlx5e_read_mini_arr_slot(struct mlx5e_cq *cq, u32 cqcc) +static inline void mlx5e_read_mini_arr_slot(struct mlx5_cqwq *wq, + struct mlx5e_cq_decomp *cqd, + u32 cqcc) { - mlx5e_read_cqe_slot(cq, cqcc, cq->mini_arr); - cq->mini_arr_idx = 0; + mlx5e_read_cqe_slot(wq, cqcc, cqd->mini_arr); + cqd->mini_arr_idx = 0; } -static inline void mlx5e_cqes_update_owner(struct mlx5e_cq *cq, u32 cqcc, int n) +static inline void mlx5e_cqes_update_owner(struct mlx5_cqwq *wq, int n) { - struct mlx5_cqwq *wq = &cq->wq; - + u32 cqcc = wq->cc; u8 op_own = mlx5_cqwq_get_ctr_wrap_cnt(wq, cqcc) & 1; u32 ci = mlx5_cqwq_ctr2ix(wq, cqcc); u32 wq_sz = mlx5_cqwq_get_size(wq); u32 ci_top = min_t(u32, wq_sz, ci + n); for (; ci < ci_top; ci++, n--) { - struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, ci); + struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(wq, ci); cqe->op_own = op_own; } @@ -93,7 +98,7 @@ static inline void mlx5e_cqes_update_owner(struct mlx5e_cq *cq, u32 cqcc, int n) if (unlikely(ci == wq_sz)) { op_own = !op_own; for (ci = 0; ci < n; ci++) { - struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, ci); + struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(wq, ci); cqe->op_own = op_own; } @@ -101,68 +106,79 @@ static inline void mlx5e_cqes_update_owner(struct mlx5e_cq *cq, u32 cqcc, int n) } static inline void mlx5e_decompress_cqe(struct mlx5e_rq *rq, - struct mlx5e_cq *cq, u32 cqcc) + struct mlx5_cqwq *wq, + u32 cqcc) { - cq->title.byte_cnt = cq->mini_arr[cq->mini_arr_idx].byte_cnt; - cq->title.check_sum = cq->mini_arr[cq->mini_arr_idx].checksum; - cq->title.op_own &= 0xf0; - cq->title.op_own |= 0x01 & (cqcc >> cq->wq.fbc.log_sz); - cq->title.wqe_counter = cpu_to_be16(cq->decmprs_wqe_counter); + struct mlx5e_cq_decomp *cqd = &rq->cqd; + struct mlx5_mini_cqe8 *mini_cqe = &cqd->mini_arr[cqd->mini_arr_idx]; + struct mlx5_cqe64 *title = &cqd->title; + + title->byte_cnt = mini_cqe->byte_cnt; + title->check_sum = mini_cqe->checksum; + title->op_own &= 0xf0; + title->op_own |= 0x01 & (cqcc >> wq->fbc.log_sz); + title->wqe_counter = cpu_to_be16(cqd->wqe_counter); if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) - cq->decmprs_wqe_counter += - mpwrq_get_cqe_consumed_strides(&cq->title); + cqd->wqe_counter += mpwrq_get_cqe_consumed_strides(title); else - cq->decmprs_wqe_counter = - mlx5_wq_cyc_ctr2ix(&rq->wqe.wq, cq->decmprs_wqe_counter + 1); + cqd->wqe_counter = + mlx5_wq_cyc_ctr2ix(&rq->wqe.wq, cqd->wqe_counter + 1); } static inline void mlx5e_decompress_cqe_no_hash(struct mlx5e_rq *rq, - struct mlx5e_cq *cq, u32 cqcc) + struct mlx5_cqwq *wq, + u32 cqcc) { - mlx5e_decompress_cqe(rq, cq, cqcc); - cq->title.rss_hash_type = 0; - cq->title.rss_hash_result = 0; + struct mlx5e_cq_decomp *cqd = &rq->cqd; + + mlx5e_decompress_cqe(rq, wq, cqcc); + cqd->title.rss_hash_type = 0; + cqd->title.rss_hash_result = 0; } static inline u32 mlx5e_decompress_cqes_cont(struct mlx5e_rq *rq, - struct mlx5e_cq *cq, + struct mlx5_cqwq *wq, int update_owner_only, int budget_rem) { - u32 cqcc = cq->wq.cc + update_owner_only; + struct mlx5e_cq_decomp *cqd = &rq->cqd; + u32 cqcc = wq->cc + update_owner_only; u32 cqe_count; u32 i; - cqe_count = min_t(u32, cq->decmprs_left, budget_rem); + cqe_count = min_t(u32, cqd->left, budget_rem); for (i = update_owner_only; i < cqe_count; - i++, cq->mini_arr_idx++, cqcc++) { - if (cq->mini_arr_idx == MLX5_MINI_CQE_ARRAY_SIZE) - mlx5e_read_mini_arr_slot(cq, cqcc); + i++, cqd->mini_arr_idx++, cqcc++) { + if (cqd->mini_arr_idx == MLX5_MINI_CQE_ARRAY_SIZE) + mlx5e_read_mini_arr_slot(wq, cqd, cqcc); - mlx5e_decompress_cqe_no_hash(rq, cq, cqcc); - rq->handle_rx_cqe(rq, &cq->title); + mlx5e_decompress_cqe_no_hash(rq, wq, cqcc); + rq->handle_rx_cqe(rq, &cqd->title); } - mlx5e_cqes_update_owner(cq, cq->wq.cc, cqcc - cq->wq.cc); - cq->wq.cc = cqcc; - cq->decmprs_left -= cqe_count; + mlx5e_cqes_update_owner(wq, cqcc - wq->cc); + wq->cc = cqcc; + cqd->left -= cqe_count; rq->stats->cqe_compress_pkts += cqe_count; return cqe_count; } static inline u32 mlx5e_decompress_cqes_start(struct mlx5e_rq *rq, - struct mlx5e_cq *cq, + struct mlx5_cqwq *wq, int budget_rem) { - mlx5e_read_title_slot(rq, cq, cq->wq.cc); - mlx5e_read_mini_arr_slot(cq, cq->wq.cc + 1); - mlx5e_decompress_cqe(rq, cq, cq->wq.cc); - rq->handle_rx_cqe(rq, &cq->title); - cq->mini_arr_idx++; + struct mlx5e_cq_decomp *cqd = &rq->cqd; + u32 cc = wq->cc; + + mlx5e_read_title_slot(rq, wq, cc); + mlx5e_read_mini_arr_slot(wq, cqd, cc + 1); + mlx5e_decompress_cqe(rq, wq, cc); + rq->handle_rx_cqe(rq, &cqd->title); + cqd->mini_arr_idx++; - return mlx5e_decompress_cqes_cont(rq, cq, 1, budget_rem) - 1; + return mlx5e_decompress_cqes_cont(rq, wq, 1, budget_rem) - 1; } static inline bool mlx5e_page_is_reserved(struct page *page) @@ -369,7 +385,7 @@ mlx5e_add_skb_frag(struct mlx5e_rq *rq, struct sk_buff *skb, static inline void mlx5e_copy_skb_header(struct device *pdev, struct sk_buff *skb, struct mlx5e_dma_info *dma_info, - int offset_from, int offset_to, u32 headlen) + int offset_from, u32 headlen) { const void *from = page_address(dma_info->page) + offset_from; /* Aligning len to sizeof(long) optimizes memcpy performance */ @@ -377,24 +393,7 @@ mlx5e_copy_skb_header(struct device *pdev, struct sk_buff *skb, dma_sync_single_for_cpu(pdev, dma_info->addr + offset_from, len, DMA_FROM_DEVICE); - skb_copy_to_linear_data_offset(skb, offset_to, from, len); -} - -static inline void -mlx5e_copy_skb_header_mpwqe(struct device *pdev, - struct sk_buff *skb, - struct mlx5e_dma_info *dma_info, - u32 offset, u32 headlen) -{ - u16 headlen_pg = min_t(u32, headlen, PAGE_SIZE - offset); - - mlx5e_copy_skb_header(pdev, skb, dma_info, offset, 0, headlen_pg); - - if (unlikely(offset + headlen > PAGE_SIZE)) { - dma_info++; - mlx5e_copy_skb_header(pdev, skb, dma_info, 0, headlen_pg, - headlen - headlen_pg); - } + skb_copy_to_linear_data(skb, from, len); } static void @@ -973,8 +972,7 @@ mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe, } /* copy header */ - mlx5e_copy_skb_header(rq->pdev, skb, head_wi->di, head_wi->offset, - 0, headlen); + mlx5e_copy_skb_header(rq->pdev, skb, head_wi->di, head_wi->offset, headlen); /* skb linear part was allocated with headlen and aligned to long */ skb->tail += headlen; skb->len += headlen; @@ -1096,8 +1094,7 @@ mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *w di++; } /* copy header */ - mlx5e_copy_skb_header_mpwqe(rq->pdev, skb, head_di, - head_offset, headlen); + mlx5e_copy_skb_header(rq->pdev, skb, head_di, head_offset, headlen); /* skb linear part was allocated with headlen and aligned to long */ skb->tail += headlen; skb->len += headlen; @@ -1203,16 +1200,17 @@ mpwrq_cqe_out: int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget) { struct mlx5e_rq *rq = container_of(cq, struct mlx5e_rq, cq); + struct mlx5_cqwq *cqwq = &cq->wq; struct mlx5_cqe64 *cqe; int work_done = 0; if (unlikely(!test_bit(MLX5E_RQ_STATE_ENABLED, &rq->state))) return 0; - if (cq->decmprs_left) - work_done += mlx5e_decompress_cqes_cont(rq, cq, 0, budget); + if (rq->cqd.left) + work_done += mlx5e_decompress_cqes_cont(rq, cqwq, 0, budget); - cqe = mlx5_cqwq_get_cqe(&cq->wq); + cqe = mlx5_cqwq_get_cqe(cqwq); if (!cqe) { if (unlikely(work_done)) goto out; @@ -1222,21 +1220,21 @@ int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget) do { if (mlx5_get_cqe_format(cqe) == MLX5_COMPRESSED) { work_done += - mlx5e_decompress_cqes_start(rq, cq, + mlx5e_decompress_cqes_start(rq, cqwq, budget - work_done); continue; } - mlx5_cqwq_pop(&cq->wq); + mlx5_cqwq_pop(cqwq); rq->handle_rx_cqe(rq, cqe); - } while ((++work_done < budget) && (cqe = mlx5_cqwq_get_cqe(&cq->wq))); + } while ((++work_done < budget) && (cqe = mlx5_cqwq_get_cqe(cqwq))); out: if (rq->xdp_prog) mlx5e_xdp_rx_poll_complete(rq); - mlx5_cqwq_update_db_record(&cq->wq); + mlx5_cqwq_update_db_record(cqwq); /* ensure cq space is freed before enabling more cqes */ wmb(); @@ -1297,8 +1295,14 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq, skb->protocol = *((__be16 *)(skb->data)); - skb->ip_summed = CHECKSUM_COMPLETE; - skb->csum = csum_unfold((__force __sum16)cqe->check_sum); + if (netdev->features & NETIF_F_RXCSUM) { + skb->ip_summed = CHECKSUM_COMPLETE; + skb->csum = csum_unfold((__force __sum16)cqe->check_sum); + stats->csum_complete++; + } else { + skb->ip_summed = CHECKSUM_NONE; + stats->csum_none++; + } if (unlikely(mlx5e_rx_hw_stamp(tstamp))) skb_hwtstamps(skb)->hwtstamp = @@ -1317,7 +1321,6 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq, skb->dev = netdev; - stats->csum_complete++; stats->packets++; stats->bytes += cqe_bcnt; } |