diff options
Diffstat (limited to 'drivers/net/bnx2x/bnx2x_cmn.c')
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_cmn.c | 870 |
1 files changed, 584 insertions, 286 deletions
diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c index c72e1df04728..ebd8b1cdd58c 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.c +++ b/drivers/net/bnx2x/bnx2x_cmn.c @@ -27,7 +27,7 @@ #include "bnx2x_init.h" #include "bnx2x_sp.h" -static int bnx2x_setup_irqs(struct bnx2x *bp); + /** * bnx2x_bz_fp - zero content of the fastpath structure. @@ -72,6 +72,8 @@ static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) to_fp->napi = orig_napi; } +int load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ + /* free skb in the packet ring at pos idx * return idx of last bd freed */ @@ -88,8 +90,8 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fastpath *fp, /* prefetch skb end pointer to speedup dev_kfree_skb() */ prefetch(&skb->end); - DP(BNX2X_MSG_OFF, "pkt_idx %d buff @(%p)->skb %p\n", - idx, tx_buf, skb); + DP(BNX2X_MSG_FP, "fp[%d]: pkt_idx %d buff @(%p)->skb %p\n", + fp->index, idx, tx_buf, skb); /* unmap first bd */ DP(BNX2X_MSG_OFF, "free bd_idx %d\n", bd_idx); @@ -97,6 +99,7 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fastpath *fp, dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd), BD_UNMAP_LEN(tx_start_bd), DMA_TO_DEVICE); + nbd = le16_to_cpu(tx_start_bd->nbd) - 1; #ifdef BNX2X_STOP_ON_ERROR if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) { @@ -175,6 +178,9 @@ int bnx2x_tx_int(struct bnx2x_fastpath *fp) * memory barrier, there is a small possibility that * start_xmit() will miss it and cause the queue to be stopped * forever. + * On the other hand we need an rmb() here to ensure the proper + * ordering of bit testing in the following + * netif_tx_queue_stopped(txq) call. */ smp_mb(); @@ -226,7 +232,7 @@ static void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, /* First mark all used pages */ for (i = 0; i < sge_len; i++) - SGE_MASK_CLEAR_BIT(fp, + BIT_VEC64_CLEAR_BIT(fp->sge_mask, RX_SGE(le16_to_cpu(fp_cqe->sgl_or_raw_data.sgl[i]))); DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n", @@ -238,8 +244,8 @@ static void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, le16_to_cpu(fp_cqe->sgl_or_raw_data.sgl[sge_len - 1])); last_max = RX_SGE(fp->last_max_sge); - last_elem = last_max >> RX_SGE_MASK_ELEM_SHIFT; - first_elem = RX_SGE(fp->rx_sge_prod) >> RX_SGE_MASK_ELEM_SHIFT; + last_elem = last_max >> BIT_VEC64_ELEM_SHIFT; + first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT; /* If ring is not full */ if (last_elem + 1 != first_elem) @@ -250,8 +256,8 @@ static void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, if (likely(fp->sge_mask[i])) break; - fp->sge_mask[i] = RX_SGE_MASK_ELEM_ONE_MASK; - delta += RX_SGE_MASK_ELEM_SZ; + fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK; + delta += BIT_VEC64_ELEM_SZ; } if (delta > 0) { @@ -266,33 +272,56 @@ static void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, } static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, - struct sk_buff *skb, u16 cons, u16 prod) + struct sk_buff *skb, u16 cons, u16 prod, + struct eth_fast_path_rx_cqe *cqe) { struct bnx2x *bp = fp->bp; struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; dma_addr_t mapping; + struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; + struct sw_rx_bd *first_buf = &tpa_info->first_buf; - /* move empty skb from pool to prod and map it */ - prod_rx_buf->skb = fp->tpa_pool[queue].skb; - mapping = dma_map_single(&bp->pdev->dev, fp->tpa_pool[queue].skb->data, - fp->rx_buf_size, DMA_FROM_DEVICE); - dma_unmap_addr_set(prod_rx_buf, mapping, mapping); - - /* move partial skb from cons to pool (don't unmap yet) */ - fp->tpa_pool[queue] = *cons_rx_buf; - - /* mark bin state as start - print error if current state != stop */ - if (fp->tpa_state[queue] != BNX2X_TPA_STOP) + /* print error if current state != stop */ + if (tpa_info->tpa_state != BNX2X_TPA_STOP) BNX2X_ERR("start of bin not in stop [%d]\n", queue); - fp->tpa_state[queue] = BNX2X_TPA_START; + /* Try to map an empty skb from the aggregation info */ + mapping = dma_map_single(&bp->pdev->dev, + first_buf->skb->data, + fp->rx_buf_size, DMA_FROM_DEVICE); + /* + * ...if it fails - move the skb from the consumer to the producer + * and set the current aggregation state as ERROR to drop it + * when TPA_STOP arrives. + */ + + if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { + /* Move the BD from the consumer to the producer */ + bnx2x_reuse_rx_skb(fp, cons, prod); + tpa_info->tpa_state = BNX2X_TPA_ERROR; + return; + } + /* move empty skb from pool to prod */ + prod_rx_buf->skb = first_buf->skb; + dma_unmap_addr_set(prod_rx_buf, mapping, mapping); /* point prod_bd to new skb */ prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); + /* move partial skb from cons to pool (don't unmap yet) */ + *first_buf = *cons_rx_buf; + + /* mark bin state as START */ + tpa_info->parsing_flags = + le16_to_cpu(cqe->pars_flags.flags); + tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); + tpa_info->tpa_state = BNX2X_TPA_START; + tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd); + tpa_info->placement_offset = cqe->placement_offset; + #ifdef BNX2X_STOP_ON_ERROR fp->tpa_queue_used |= (1 << queue); #ifdef _ASM_GENERIC_INT_L64_H @@ -323,10 +352,17 @@ static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, static inline u16 bnx2x_set_lro_mss(struct bnx2x *bp, u16 parsing_flags, u16 len_on_bd) { - /* TPA arrgregation won't have an IP options and TCP options - * other than timestamp. + /* + * TPA arrgregation won't have either IP options or TCP options + * other than timestamp or IPv6 extension headers. */ - u16 hdrs_len = ETH_HLEN + sizeof(struct iphdr) + sizeof(struct tcphdr); + u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr); + + if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == + PRS_FLAG_OVERETH_IPV6) + hdrs_len += sizeof(struct ipv6hdr); + else /* IPv4 */ + hdrs_len += sizeof(struct iphdr); /* Check if there was a TCP timestamp, if there is it's will @@ -341,30 +377,30 @@ static inline u16 bnx2x_set_lro_mss(struct bnx2x *bp, u16 parsing_flags, } static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, - struct sk_buff *skb, - struct eth_fast_path_rx_cqe *fp_cqe, - u16 cqe_idx, u16 parsing_flags) + u16 queue, struct sk_buff *skb, + struct eth_end_agg_rx_cqe *cqe, + u16 cqe_idx) { struct sw_rx_page *rx_pg, old_rx_pg; - u16 len_on_bd = le16_to_cpu(fp_cqe->len_on_bd); u32 i, frag_len, frag_size, pages; int err; int j; + struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; + u16 len_on_bd = tpa_info->len_on_bd; - frag_size = le16_to_cpu(fp_cqe->pkt_len) - len_on_bd; + frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; pages = SGE_PAGE_ALIGN(frag_size) >> SGE_PAGE_SHIFT; /* This is needed in order to enable forwarding support */ if (frag_size) - skb_shinfo(skb)->gso_size = bnx2x_set_lro_mss(bp, parsing_flags, - len_on_bd); + skb_shinfo(skb)->gso_size = bnx2x_set_lro_mss(bp, + tpa_info->parsing_flags, len_on_bd); #ifdef BNX2X_STOP_ON_ERROR if (pages > min_t(u32, 8, MAX_SKB_FRAGS)*SGE_PAGE_SIZE*PAGES_PER_SGE) { BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", pages, cqe_idx); - BNX2X_ERR("fp_cqe->pkt_len = %d fp_cqe->len_on_bd = %d\n", - fp_cqe->pkt_len, len_on_bd); + BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); bnx2x_panic(); return -EINVAL; } @@ -372,8 +408,7 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, /* Run through the SGL and compose the fragmented skb */ for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { - u16 sge_idx = - RX_SGE(le16_to_cpu(fp_cqe->sgl_or_raw_data.sgl[j])); + u16 sge_idx = RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[j])); /* FW gives the indices of the SGE as if the ring is an array (meaning that "next" element will consume 2 indices) */ @@ -408,13 +443,28 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, } static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, - u16 queue, int pad, int len, union eth_rx_cqe *cqe, + u16 queue, struct eth_end_agg_rx_cqe *cqe, u16 cqe_idx) { - struct sw_rx_bd *rx_buf = &fp->tpa_pool[queue]; + struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; + struct sw_rx_bd *rx_buf = &tpa_info->first_buf; + u8 pad = tpa_info->placement_offset; + u16 len = tpa_info->len_on_bd; struct sk_buff *skb = rx_buf->skb; /* alloc new skb */ - struct sk_buff *new_skb = netdev_alloc_skb(bp->dev, fp->rx_buf_size); + struct sk_buff *new_skb; + u8 old_tpa_state = tpa_info->tpa_state; + + tpa_info->tpa_state = BNX2X_TPA_STOP; + + /* If we there was an error during the handling of the TPA_START - + * drop this aggregation. + */ + if (old_tpa_state == BNX2X_TPA_ERROR) + goto drop; + + /* Try to allocate the new skb */ + new_skb = netdev_alloc_skb(bp->dev, fp->rx_buf_size); /* Unmap skb in the pool anyway, as we are going to change pool entry status to BNX2X_TPA_STOP even if new skb allocation @@ -423,11 +473,6 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, fp->rx_buf_size, DMA_FROM_DEVICE); if (likely(new_skb)) { - /* fix ip xsum and give it to the stack */ - /* (no need to map the new skb) */ - u16 parsing_flags = - le16_to_cpu(cqe->fast_path_cqe.pars_flags.flags); - prefetch(skb); prefetch(((char *)(skb)) + L1_CACHE_BYTES); @@ -447,21 +492,9 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, skb->protocol = eth_type_trans(skb, bp->dev); skb->ip_summed = CHECKSUM_UNNECESSARY; - { - struct iphdr *iph; - - iph = (struct iphdr *)skb->data; - iph->check = 0; - iph->check = ip_fast_csum((u8 *)iph, iph->ihl); - } - - if (!bnx2x_fill_frag_skb(bp, fp, skb, - &cqe->fast_path_cqe, cqe_idx, - parsing_flags)) { - if (parsing_flags & PARSING_FLAGS_VLAN) - __vlan_hwaccel_put_tag(skb, - le16_to_cpu(cqe->fast_path_cqe. - vlan_tag)); + if (!bnx2x_fill_frag_skb(bp, fp, queue, skb, cqe, cqe_idx)) { + if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) + __vlan_hwaccel_put_tag(skb, tpa_info->vlan_tag); napi_gro_receive(&fp->napi, skb); } else { DP(NETIF_MSG_RX_STATUS, "Failed to allocate new pages" @@ -471,16 +504,16 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, /* put new skb in bin */ - fp->tpa_pool[queue].skb = new_skb; + rx_buf->skb = new_skb; - } else { - /* else drop the packet and keep the buffer in the bin */ - DP(NETIF_MSG_RX_STATUS, - "Failed to allocate new skb - dropping packet!\n"); - fp->eth_q_stats.rx_skb_alloc_failed++; + return; } - fp->tpa_state[queue] = BNX2X_TPA_STOP; +drop: + /* drop the packet and keep the buffer in the bin */ + DP(NETIF_MSG_RX_STATUS, + "Failed to allocate or map a new skb - dropping packet!\n"); + fp->eth_q_stats.rx_skb_alloc_failed++; } /* Set Toeplitz hash value in the skb using the value from the @@ -534,9 +567,16 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) struct sw_rx_bd *rx_buf = NULL; struct sk_buff *skb; union eth_rx_cqe *cqe; + struct eth_fast_path_rx_cqe *cqe_fp; u8 cqe_fp_flags; + enum eth_rx_cqe_type cqe_fp_type; u16 len, pad; +#ifdef BNX2X_STOP_ON_ERROR + if (unlikely(bp->panic)) + return 0; +#endif + comp_ring_cons = RCQ_BD(sw_comp_cons); bd_prod = RX_BD(bd_prod); bd_cons = RX_BD(bd_cons); @@ -549,17 +589,18 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) PAGE_SIZE + 1)); cqe = &fp->rx_comp_ring[comp_ring_cons]; - cqe_fp_flags = cqe->fast_path_cqe.type_error_flags; + cqe_fp = &cqe->fast_path_cqe; + cqe_fp_flags = cqe_fp->type_error_flags; + cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; DP(NETIF_MSG_RX_STATUS, "CQE type %x err %x status %x" " queue %x vlan %x len %u\n", CQE_TYPE(cqe_fp_flags), - cqe_fp_flags, cqe->fast_path_cqe.status_flags, - le32_to_cpu(cqe->fast_path_cqe.rss_hash_result), - le16_to_cpu(cqe->fast_path_cqe.vlan_tag), - le16_to_cpu(cqe->fast_path_cqe.pkt_len)); + cqe_fp_flags, cqe_fp->status_flags, + le32_to_cpu(cqe_fp->rss_hash_result), + le16_to_cpu(cqe_fp->vlan_tag), le16_to_cpu(cqe_fp->pkt_len)); /* is this a slowpath msg? */ - if (unlikely(CQE_TYPE(cqe_fp_flags))) { + if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { bnx2x_sp_event(fp, cqe); goto next_cqe; @@ -568,61 +609,59 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) rx_buf = &fp->rx_buf_ring[bd_cons]; skb = rx_buf->skb; prefetch(skb); - len = le16_to_cpu(cqe->fast_path_cqe.pkt_len); - pad = cqe->fast_path_cqe.placement_offset; - /* - If CQE is marked both TPA_START and TPA_END it is - * a non-TPA CQE. - * - FP CQE will always have either TPA_START or/and - * TPA_STOP flags set. - */ - if ((!fp->disable_tpa) && - (TPA_TYPE(cqe_fp_flags) != - (TPA_TYPE_START | TPA_TYPE_END))) { - u16 queue = cqe->fast_path_cqe.queue_index; + if (!CQE_TYPE_FAST(cqe_fp_type)) { +#ifdef BNX2X_STOP_ON_ERROR + /* sanity check */ + if (fp->disable_tpa && + (CQE_TYPE_START(cqe_fp_type) || + CQE_TYPE_STOP(cqe_fp_type))) + BNX2X_ERR("START/STOP packet while " + "disable_tpa type %x\n", + CQE_TYPE(cqe_fp_type)); +#endif - if (TPA_TYPE(cqe_fp_flags) == TPA_TYPE_START) { + if (CQE_TYPE_START(cqe_fp_type)) { + u16 queue = cqe_fp->queue_index; DP(NETIF_MSG_RX_STATUS, "calling tpa_start on queue %d\n", queue); bnx2x_tpa_start(fp, queue, skb, - bd_cons, bd_prod); + bd_cons, bd_prod, + cqe_fp); - /* Set Toeplitz hash for an LRO skb */ + /* Set Toeplitz hash for LRO skb */ bnx2x_set_skb_rxhash(bp, cqe, skb); goto next_rx; - } else { /* TPA_STOP */ + + } else { + u16 queue = + cqe->end_agg_cqe.queue_index; DP(NETIF_MSG_RX_STATUS, "calling tpa_stop on queue %d\n", queue); - if (!BNX2X_RX_SUM_FIX(cqe)) - BNX2X_ERR("STOP on none TCP " - "data\n"); - - /* This is a size of the linear data - on this skb */ - len = le16_to_cpu(cqe->fast_path_cqe. - len_on_bd); - bnx2x_tpa_stop(bp, fp, queue, pad, - len, cqe, comp_ring_cons); + bnx2x_tpa_stop(bp, fp, queue, + &cqe->end_agg_cqe, + comp_ring_cons); #ifdef BNX2X_STOP_ON_ERROR if (bp->panic) return 0; #endif - bnx2x_update_sge_prod(fp, - &cqe->fast_path_cqe); + bnx2x_update_sge_prod(fp, cqe_fp); goto next_cqe; } } - + /* non TPA */ + len = le16_to_cpu(cqe_fp->pkt_len); + pad = cqe_fp->placement_offset; dma_sync_single_for_device(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), - pad + RX_COPY_THRESH, - DMA_FROM_DEVICE); + pad + RX_COPY_THRESH, + DMA_FROM_DEVICE); prefetch(((char *)(skb)) + L1_CACHE_BYTES); /* is this an error packet? */ @@ -641,8 +680,7 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) (len <= RX_COPY_THRESH)) { struct sk_buff *new_skb; - new_skb = netdev_alloc_skb(bp->dev, - len + pad); + new_skb = netdev_alloc_skb(bp->dev, len + pad); if (new_skb == NULL) { DP(NETIF_MSG_RX_ERR, "ERROR packet dropped " @@ -688,6 +726,7 @@ reuse_rx: skb_checksum_none_assert(skb); if (bp->dev->features & NETIF_F_RXCSUM) { + if (likely(BNX2X_RX_CSUM_OK(cqe))) skb->ip_summed = CHECKSUM_UNNECESSARY; else @@ -697,10 +736,10 @@ reuse_rx: skb_record_rx_queue(skb, fp->index); - if (le16_to_cpu(cqe->fast_path_cqe.pars_flags.flags) & - PARSING_FLAGS_VLAN) + if (le16_to_cpu(cqe_fp->pars_flags.flags) & + PARSING_FLAGS_VLAN) __vlan_hwaccel_put_tag(skb, - le16_to_cpu(cqe->fast_path_cqe.vlan_tag)); + le16_to_cpu(cqe_fp->vlan_tag)); napi_gro_receive(&fp->napi, skb); @@ -926,7 +965,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) { int func = BP_FUNC(bp); int max_agg_queues = CHIP_IS_E1(bp) ? ETH_MAX_AGGREGATION_QUEUES_E1 : - ETH_MAX_AGGREGATION_QUEUES_E1H; + ETH_MAX_AGGREGATION_QUEUES_E1H_E2; u16 ring_prod; int i, j; @@ -938,11 +977,16 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); if (!fp->disable_tpa) { - /* Fill the per-aggregation pool */ + /* Fill the per-aggregtion pool */ for (i = 0; i < max_agg_queues; i++) { - fp->tpa_pool[i].skb = - netdev_alloc_skb(bp->dev, fp->rx_buf_size); - if (!fp->tpa_pool[i].skb) { + struct bnx2x_agg_info *tpa_info = + &fp->tpa_info[i]; + struct sw_rx_bd *first_buf = + &tpa_info->first_buf; + + first_buf->skb = netdev_alloc_skb(bp->dev, + fp->rx_buf_size); + if (!first_buf->skb) { BNX2X_ERR("Failed to allocate TPA " "skb pool for queue[%d] - " "disabling TPA on this " @@ -951,10 +995,8 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) fp->disable_tpa = 1; break; } - dma_unmap_addr_set((struct sw_rx_bd *) - &bp->fp->tpa_pool[i], - mapping, 0); - fp->tpa_state[i] = BNX2X_TPA_STOP; + dma_unmap_addr_set(first_buf, mapping, 0); + tpa_info->tpa_state = BNX2X_TPA_STOP; } /* "next page" elements initialization */ @@ -970,13 +1012,13 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) if (bnx2x_alloc_rx_sge(bp, fp, ring_prod) < 0) { BNX2X_ERR("was only able to allocate " "%d rx sges\n", i); - BNX2X_ERR("disabling TPA for" - " queue[%d]\n", j); + BNX2X_ERR("disabling TPA for " + "queue[%d]\n", j); /* Cleanup already allocated elements */ - bnx2x_free_rx_sge_range(bp, - fp, ring_prod); - bnx2x_free_tpa_pool(bp, - fp, max_agg_queues); + bnx2x_free_rx_sge_range(bp, fp, + ring_prod); + bnx2x_free_tpa_pool(bp, fp, + max_agg_queues); fp->disable_tpa = 1; ring_prod = 0; break; @@ -1004,7 +1046,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) if (j != 0) continue; - if (!CHIP_IS_E2(bp)) { + if (CHIP_IS_E1(bp)) { REG_WR(bp, BAR_USTRORM_INTMEM + USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), U64_LO(fp->rx_comp_mapping)); @@ -1048,7 +1090,6 @@ static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) if (skb == NULL) continue; - dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), fp->rx_buf_size, DMA_FROM_DEVICE); @@ -1070,7 +1111,7 @@ static void bnx2x_free_rx_skbs(struct bnx2x *bp) if (!fp->disable_tpa) bnx2x_free_tpa_pool(bp, fp, CHIP_IS_E1(bp) ? ETH_MAX_AGGREGATION_QUEUES_E1 : - ETH_MAX_AGGREGATION_QUEUES_E1H); + ETH_MAX_AGGREGATION_QUEUES_E1H_E2); } } @@ -1234,7 +1275,6 @@ static int bnx2x_req_msix_irqs(struct bnx2x *bp) } offset++; - fp->state = BNX2X_FP_STATE_IRQ; } i = BNX2X_NUM_ETH_QUEUES(bp); @@ -1274,25 +1314,46 @@ static int bnx2x_req_irq(struct bnx2x *bp) rc = request_irq(bp->pdev->irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev); - if (!rc) - bnx2x_fp(bp, 0, state) = BNX2X_FP_STATE_IRQ; - return rc; } -static void bnx2x_napi_enable(struct bnx2x *bp) +static inline int bnx2x_setup_irqs(struct bnx2x *bp) +{ + int rc = 0; + if (bp->flags & USING_MSIX_FLAG) { + rc = bnx2x_req_msix_irqs(bp); + if (rc) + return rc; + } else { + bnx2x_ack_int(bp); + rc = bnx2x_req_irq(bp); + if (rc) { + BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); + return rc; + } + if (bp->flags & USING_MSI_FLAG) { + bp->dev->irq = bp->pdev->irq; + netdev_info(bp->dev, "using MSI IRQ %d\n", + bp->pdev->irq); + } + } + + return 0; +} + +static inline void bnx2x_napi_enable(struct bnx2x *bp) { int i; - for_each_napi_queue(bp, i) + for_each_rx_queue(bp, i) napi_enable(&bnx2x_fp(bp, i, napi)); } -static void bnx2x_napi_disable(struct bnx2x *bp) +static inline void bnx2x_napi_disable(struct bnx2x *bp) { int i; - for_each_napi_queue(bp, i) + for_each_rx_queue(bp, i) napi_disable(&bnx2x_fp(bp, i, napi)); } @@ -1310,7 +1371,6 @@ void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) { bnx2x_int_disable_sync(bp, disable_hw); bnx2x_napi_disable(bp); - netif_tx_disable(bp->dev); } u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb) @@ -1361,26 +1421,6 @@ void bnx2x_set_num_queues(struct bnx2x *bp) bp->num_queues += NONE_ETH_CONTEXT_USE; } -#ifdef BCM_CNIC -static inline void bnx2x_set_fcoe_eth_macs(struct bnx2x *bp) -{ - if (!NO_FCOE(bp)) { - if (!IS_MF_SD(bp)) - bnx2x_set_fip_eth_mac_addr(bp, 1); - bnx2x_set_all_enode_macs(bp, 1); - bp->flags |= FCOE_MACS_SET; - } -} -#endif - -static void bnx2x_release_firmware(struct bnx2x *bp) -{ - kfree(bp->init_ops_offsets); - kfree(bp->init_ops); - kfree(bp->init_data); - release_firmware(bp->firmware); -} - static inline int bnx2x_set_real_num_queues(struct bnx2x *bp) { int rc, num = bp->num_queues; @@ -1412,27 +1452,198 @@ static inline void bnx2x_set_rx_buf_size(struct bnx2x *bp) */ fp->rx_buf_size = BNX2X_FCOE_MINI_JUMBO_MTU + ETH_OVREHEAD + - BNX2X_RX_ALIGN + IP_HEADER_ALIGNMENT_PADDING; + BNX2X_FW_RX_ALIGN + IP_HEADER_ALIGNMENT_PADDING; else fp->rx_buf_size = - bp->dev->mtu + ETH_OVREHEAD + BNX2X_RX_ALIGN + - IP_HEADER_ALIGNMENT_PADDING; + bp->dev->mtu + ETH_OVREHEAD + + BNX2X_FW_RX_ALIGN + IP_HEADER_ALIGNMENT_PADDING; } } +static inline int bnx2x_init_rss_pf(struct bnx2x *bp) +{ + int i; + u8 ind_table[T_ETH_INDIRECTION_TABLE_SIZE] = {0}; + u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); + + /* + * Prepare the inital contents fo the indirection table if RSS is + * enabled + */ + if (bp->multi_mode != ETH_RSS_MODE_DISABLED) { + for (i = 0; i < sizeof(ind_table); i++) + ind_table[i] = + bp->fp->cl_id + (i % num_eth_queues); + } + + /* + * For 57710 and 57711 SEARCHER configuration (rss_keys) is + * per-port, so if explicit configuration is needed , do it only + * for a PMF. + * + * For 57712 and newer on the other hand it's a per-function + * configuration. + */ + return bnx2x_config_rss_pf(bp, ind_table, + bp->port.pmf || !CHIP_IS_E1x(bp)); +} + +int bnx2x_config_rss_pf(struct bnx2x *bp, u8 *ind_table, bool config_hash) +{ + struct bnx2x_config_rss_params params = {0}; + int i; + + /* Although RSS is meaningless when there is a single HW queue we + * still need it enabled in order to have HW Rx hash generated. + * + * if (!is_eth_multi(bp)) + * bp->multi_mode = ETH_RSS_MODE_DISABLED; + */ + + params.rss_obj = &bp->rss_conf_obj; + + __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); + + /* RSS mode */ + switch (bp->multi_mode) { + case ETH_RSS_MODE_DISABLED: + __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags); + break; + case ETH_RSS_MODE_REGULAR: + __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); + break; + case ETH_RSS_MODE_VLAN_PRI: + __set_bit(BNX2X_RSS_MODE_VLAN_PRI, ¶ms.rss_flags); + break; + case ETH_RSS_MODE_E1HOV_PRI: + __set_bit(BNX2X_RSS_MODE_E1HOV_PRI, ¶ms.rss_flags); + break; + case ETH_RSS_MODE_IP_DSCP: + __set_bit(BNX2X_RSS_MODE_IP_DSCP, ¶ms.rss_flags); + break; + default: + BNX2X_ERR("Unknown multi_mode: %d\n", bp->multi_mode); + return -EINVAL; + } + + /* If RSS is enabled */ + if (bp->multi_mode != ETH_RSS_MODE_DISABLED) { + /* RSS configuration */ + __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); + __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); + __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); + __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); + + /* Hash bits */ + params.rss_result_mask = MULTI_MASK; + + memcpy(params.ind_table, ind_table, sizeof(params.ind_table)); + + if (config_hash) { + /* RSS keys */ + for (i = 0; i < sizeof(params.rss_key) / 4; i++) + params.rss_key[i] = random32(); + + __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); + } + } + + return bnx2x_config_rss(bp, ¶ms); +} + +static inline int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) +{ + struct bnx2x_func_state_params func_params = {0}; + + /* Prepare parameters for function state transitions */ + __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); + + func_params.f_obj = &bp->func_obj; + func_params.cmd = BNX2X_F_CMD_HW_INIT; + + func_params.params.hw_init.load_phase = load_code; + + return bnx2x_func_state_change(bp, &func_params); +} + +/* + * Cleans the object that have internal lists without sending + * ramrods. Should be run when interrutps are disabled. + */ +static void bnx2x_squeeze_objects(struct bnx2x *bp) +{ + int rc; + unsigned long ramrod_flags = 0, vlan_mac_flags = 0; + struct bnx2x_mcast_ramrod_params rparam = {0}; + struct bnx2x_vlan_mac_obj *mac_obj = &bp->fp->mac_obj; + + /***************** Cleanup MACs' object first *************************/ + + /* Wait for completion of requested */ + __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); + /* Perform a dry cleanup */ + __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); + + /* Clean ETH primary MAC */ + __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); + rc = mac_obj->delete_all(bp, &bp->fp->mac_obj, &vlan_mac_flags, + &ramrod_flags); + if (rc != 0) + BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); + + /* Cleanup UC list */ + vlan_mac_flags = 0; + __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); + rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, + &ramrod_flags); + if (rc != 0) + BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); + + /***************** Now clean mcast object *****************************/ + rparam.mcast_obj = &bp->mcast_obj; + __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); + + /* Add a DEL command... */ + rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); + if (rc < 0) + BNX2X_ERR("Failed to add a new DEL command to a multi-cast " + "object: %d\n", rc); + + /* ...and wait until all pending commands are cleared */ + rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); + while (rc != 0) { + if (rc < 0) { + BNX2X_ERR("Failed to clean multi-cast object: %d\n", + rc); + return; + } + + rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); + } +} + +#ifndef BNX2X_STOP_ON_ERROR +#define LOAD_ERROR_EXIT(bp, label) \ + do { \ + (bp)->state = BNX2X_STATE_ERROR; \ + goto label; \ + } while (0) +#else +#define LOAD_ERROR_EXIT(bp, label) \ + do { \ + (bp)->state = BNX2X_STATE_ERROR; \ + (bp)->panic = 1; \ + return -EBUSY; \ + } while (0) +#endif + /* must be called with rtnl_lock */ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) { + int port = BP_PORT(bp); u32 load_code; int i, rc; - /* Set init arrays */ - rc = bnx2x_init_firmware(bp); - if (rc) { - BNX2X_ERR("Error loading firmware\n"); - return rc; - } - #ifdef BNX2X_STOP_ON_ERROR if (unlikely(bp->panic)) return -EPERM; @@ -1459,6 +1670,10 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) /* Set the receive queues buffer size */ bnx2x_set_rx_buf_size(bp); + /* + * set the tpa flag for each queue. The tpa flag determines the queue + * minimal size so it must be set prior to queue memory allocation + */ for_each_queue(bp, i) bnx2x_fp(bp, i, disable_tpa) = ((bp->flags & TPA_ENABLE_FLAG) == 0); @@ -1478,31 +1693,30 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) rc = bnx2x_set_real_num_queues(bp); if (rc) { BNX2X_ERR("Unable to set real_num_queues\n"); - goto load_error0; + LOAD_ERROR_EXIT(bp, load_error0); } bnx2x_napi_enable(bp); /* Send LOAD_REQUEST command to MCP - Returns the type of LOAD command: - if it is the first port to be initialized - common blocks should be initialized, otherwise - not - */ + * Returns the type of LOAD command: + * if it is the first port to be initialized + * common blocks should be initialized, otherwise - not + */ if (!BP_NOMCP(bp)) { load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, 0); if (!load_code) { BNX2X_ERR("MCP response failure, aborting\n"); rc = -EBUSY; - goto load_error1; + LOAD_ERROR_EXIT(bp, load_error1); } if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED) { rc = -EBUSY; /* other port in diagnostic mode */ - goto load_error1; + LOAD_ERROR_EXIT(bp, load_error1); } } else { int path = BP_PATH(bp); - int port = BP_PORT(bp); DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n", path, load_count[path][0], load_count[path][1], @@ -1528,30 +1742,45 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) bp->port.pmf = 0; DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); + /* Init Function state controlling object */ + bnx2x__init_func_obj(bp); + /* Initialize HW */ rc = bnx2x_init_hw(bp, load_code); if (rc) { BNX2X_ERR("HW init failed, aborting\n"); bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); - goto load_error2; + LOAD_ERROR_EXIT(bp, load_error2); } /* Connect to IRQs */ rc = bnx2x_setup_irqs(bp); if (rc) { bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); - goto load_error2; + LOAD_ERROR_EXIT(bp, load_error2); } /* Setup NIC internals and enable interrupts */ bnx2x_nic_init(bp, load_code); + /* Init per-function objects */ + bnx2x_init_bp_objs(bp); + if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && - (bp->common.shmem2_base)) - SHMEM2_WR(bp, dcc_support, - (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | - SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); + (bp->common.shmem2_base)) { + if (SHMEM2_HAS(bp, dcc_support)) + SHMEM2_WR(bp, dcc_support, + (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | + SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); + } + + bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; + rc = bnx2x_func_start(bp); + if (rc) { + BNX2X_ERR("Function start failed!\n"); + LOAD_ERROR_EXIT(bp, load_error3); + } /* Send LOAD_DONE command to MCP */ if (!BP_NOMCP(bp)) { @@ -1559,74 +1788,38 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) if (!load_code) { BNX2X_ERR("MCP response failure, aborting\n"); rc = -EBUSY; - goto load_error3; + LOAD_ERROR_EXIT(bp, load_error3); } } - bnx2x_dcbx_init(bp); - - bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; - - rc = bnx2x_func_start(bp); - if (rc) { - BNX2X_ERR("Function start failed!\n"); -#ifndef BNX2X_STOP_ON_ERROR - goto load_error3; -#else - bp->panic = 1; - return -EBUSY; -#endif - } - - rc = bnx2x_setup_client(bp, &bp->fp[0], 1 /* Leading */); + rc = bnx2x_setup_leading(bp); if (rc) { BNX2X_ERR("Setup leading failed!\n"); -#ifndef BNX2X_STOP_ON_ERROR - goto load_error3; -#else - bp->panic = 1; - return -EBUSY; -#endif - } - - if (!CHIP_IS_E1(bp) && - (bp->mf_config[BP_VN(bp)] & FUNC_MF_CFG_FUNC_DISABLED)) { - DP(NETIF_MSG_IFUP, "mf_cfg function disabled\n"); - bp->flags |= MF_FUNC_DIS; + LOAD_ERROR_EXIT(bp, load_error3); } #ifdef BCM_CNIC /* Enable Timer scan */ - REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + BP_PORT(bp)*4, 1); + REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); #endif for_each_nondefault_queue(bp, i) { - rc = bnx2x_setup_client(bp, &bp->fp[i], 0); + rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); if (rc) -#ifdef BCM_CNIC - goto load_error4; -#else - goto load_error3; -#endif + LOAD_ERROR_EXIT(bp, load_error4); } + rc = bnx2x_init_rss_pf(bp); + if (rc) + LOAD_ERROR_EXIT(bp, load_error4); + /* Now when Clients are configured we are ready to work */ bp->state = BNX2X_STATE_OPEN; -#ifdef BCM_CNIC - bnx2x_set_fcoe_eth_macs(bp); -#endif - - bnx2x_set_eth_mac(bp, 1); - - /* Clear MC configuration */ - if (CHIP_IS_E1(bp)) - bnx2x_invalidate_e1_mc_list(bp); - else - bnx2x_invalidate_e1h_mc_list(bp); - - /* Clear UC lists configuration */ - bnx2x_invalidate_uc_list(bp); + /* Configure a ucast MAC */ + rc = bnx2x_set_eth_mac(bp, true); + if (rc) + LOAD_ERROR_EXIT(bp, load_error4); if (bp->pending_max) { bnx2x_update_max_mf_config(bp, bp->pending_max); @@ -1636,15 +1829,18 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) if (bp->port.pmf) bnx2x_initial_phy_init(bp, load_mode); - /* Initialize Rx filtering */ + /* Start fast path */ + + /* Initialize Rx filter. */ + netif_addr_lock_bh(bp->dev); bnx2x_set_rx_mode(bp->dev); + netif_addr_unlock_bh(bp->dev); - /* Start fast path */ + /* Start the Tx */ switch (load_mode) { case LOAD_NORMAL: /* Tx queue should be only reenabled */ netif_tx_wake_all_queues(bp->dev); - /* Initialize the receive filter. */ break; case LOAD_OPEN: @@ -1673,18 +1869,28 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) #endif bnx2x_inc_load_cnt(bp); - bnx2x_release_firmware(bp); + /* Wait for all pending SP commands to complete */ + if (!bnx2x_wait_sp_comp(bp, ~0x0UL)) { + BNX2X_ERR("Timeout waiting for SP elements to complete\n"); + bnx2x_nic_unload(bp, UNLOAD_CLOSE); + return -EBUSY; + } + bnx2x_dcbx_init(bp); return 0; -#ifdef BCM_CNIC +#ifndef BNX2X_STOP_ON_ERROR load_error4: +#ifdef BCM_CNIC /* Disable Timer scan */ - REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + BP_PORT(bp)*4, 0); + REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); #endif load_error3: bnx2x_int_disable_sync(bp, 1); + /* Clean queueable objects */ + bnx2x_squeeze_objects(bp); + /* Free SKBs, SGEs, TPA pool and driver internals */ bnx2x_free_skbs(bp); for_each_rx_queue(bp, i) @@ -1704,9 +1910,8 @@ load_error1: load_error0: bnx2x_free_mem(bp); - bnx2x_release_firmware(bp); - return rc; +#endif /* ! BNX2X_STOP_ON_ERROR */ } /* must be called with rtnl_lock */ @@ -1728,18 +1933,19 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode) bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); #endif bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; + smp_mb(); - /* Set "drop all" */ bp->rx_mode = BNX2X_RX_MODE_NONE; - bnx2x_set_storm_rx_mode(bp); /* Stop Tx */ bnx2x_tx_disable(bp); del_timer_sync(&bp->timer); - SHMEM_WR(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb, - (DRV_PULSE_ALWAYS_ALIVE | bp->fw_drv_pulse_wr_seq)); + /* Set ALWAYS_ALIVE bit in shmem */ + bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; + + bnx2x_drv_pulse(bp); bnx2x_stats_handle(bp, STATS_EVENT_STOP); @@ -1754,6 +1960,12 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode) bnx2x_free_irq(bp); } + /* + * At this stage no more interrupts will arrive so we may safly clean + * the queueable objects here in case they failed to get cleaned so far. + */ + bnx2x_squeeze_objects(bp); + bp->port.pmf = 0; /* Free SKBs, SGEs, TPA pool and driver internals */ @@ -2154,7 +2366,6 @@ static inline u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, static inline void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, struct eth_tx_start_bd *tx_start_bd, u32 xmit_type) { - tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; if (xmit_type & XMIT_CSUM_V4) @@ -2166,7 +2377,6 @@ static inline void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, if (!(xmit_type & XMIT_CSUM_TCP)) tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IS_UDP; - } /** @@ -2234,7 +2444,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) struct bnx2x_fastpath *fp; struct netdev_queue *txq; struct sw_tx_bd *tx_buf; - struct eth_tx_start_bd *tx_start_bd; + struct eth_tx_start_bd *tx_start_bd, *first_bd; struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; @@ -2296,7 +2506,15 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) } } #endif - + /* Map skb linear data for DMA */ + mapping = dma_map_single(&bp->pdev->dev, skb->data, + skb_headlen(skb), DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { + DP(NETIF_MSG_TX_QUEUED, "SKB mapping failed - " + "silently dropping this SKB\n"); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } /* Please read carefully. First we use one BD which we mark as start, then we have a parsing info BD (used for TSO or xsum), @@ -2306,12 +2524,19 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) And above all, all pdb sizes are in words - NOT DWORDS! */ - pkt_prod = fp->tx_pkt_prod++; + /* get current pkt produced now - advance it just before sending packet + * since mapping of pages may fail and cause packet to be dropped + */ + pkt_prod = fp->tx_pkt_prod; bd_prod = TX_BD(fp->tx_bd_prod); - /* get a tx_buf and first BD */ + /* get a tx_buf and first BD + * tx_start_bd may be changed during SPLIT, + * but first_bd will always stay first + */ tx_buf = &fp->tx_buf_ring[TX_BD(pkt_prod)]; tx_start_bd = &fp->tx_desc_ring[bd_prod].start_bd; + first_bd = tx_start_bd; tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD; SET_FLAG(tx_start_bd->general_data, ETH_TX_START_BD_ETH_ADDR_TYPE, @@ -2343,7 +2568,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) if (xmit_type & XMIT_CSUM) bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); - if (CHIP_IS_E2(bp)) { + if (!CHIP_IS_E1x(bp)) { pbd_e2 = &fp->tx_desc_ring[bd_prod].parse_bd_e2; memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); /* Set PBD in checksum offload case */ @@ -2351,6 +2576,20 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) hlen = bnx2x_set_pbd_csum_e2(bp, skb, &pbd_e2_parsing_data, xmit_type); + if (IS_MF_SI(bp)) { + /* + * fill in the MAC addresses in the PBD - for local + * switching + */ + bnx2x_set_fw_mac_addr(&pbd_e2->src_mac_addr_hi, + &pbd_e2->src_mac_addr_mid, + &pbd_e2->src_mac_addr_lo, + eth->h_source); + bnx2x_set_fw_mac_addr(&pbd_e2->dst_mac_addr_hi, + &pbd_e2->dst_mac_addr_mid, + &pbd_e2->dst_mac_addr_lo, + eth->h_dest); + } } else { pbd_e1x = &fp->tx_desc_ring[bd_prod].parse_bd_e1x; memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); @@ -2360,15 +2599,10 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) } - /* Map skb linear data for DMA */ - mapping = dma_map_single(&bp->pdev->dev, skb->data, - skb_headlen(skb), DMA_TO_DEVICE); - /* Setup the data pointer of the first BD of the packet */ tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); - nbd = skb_shinfo(skb)->nr_frags + 2; /* start_bd + pbd + frags */ - tx_start_bd->nbd = cpu_to_le16(nbd); + nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); pkt_size = tx_start_bd->nbytes; @@ -2391,7 +2625,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) if (unlikely(skb_headlen(skb) > hlen)) bd_prod = bnx2x_tx_split(bp, fp, tx_buf, &tx_start_bd, hlen, bd_prod, ++nbd); - if (CHIP_IS_E2(bp)) + if (!CHIP_IS_E1x(bp)) bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data, xmit_type); else @@ -2410,19 +2644,34 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + mapping = dma_map_page(&bp->pdev->dev, frag->page, + frag->page_offset, frag->size, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { + + DP(NETIF_MSG_TX_QUEUED, "Unable to map page - " + "dropping packet...\n"); + + /* we need unmap all buffers already mapped + * for this SKB; + * first_bd->nbd need to be properly updated + * before call to bnx2x_free_tx_pkt + */ + first_bd->nbd = cpu_to_le16(nbd); + bnx2x_free_tx_pkt(bp, fp, TX_BD(fp->tx_pkt_prod)); + return NETDEV_TX_OK; + } + bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); tx_data_bd = &fp->tx_desc_ring[bd_prod].reg_bd; if (total_pkt_bd == NULL) total_pkt_bd = &fp->tx_desc_ring[bd_prod].reg_bd; - mapping = dma_map_page(&bp->pdev->dev, frag->page, - frag->page_offset, - frag->size, DMA_TO_DEVICE); - tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); tx_data_bd->nbytes = cpu_to_le16(frag->size); le16_add_cpu(&pkt_size, frag->size); + nbd++; DP(NETIF_MSG_TX_QUEUED, "frag %d bd @%p addr (%x:%x) nbytes %d\n", @@ -2432,6 +2681,9 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); + /* update with actual num BDs */ + first_bd->nbd = cpu_to_le16(nbd); + bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); /* now send a tx doorbell, counting the next BD @@ -2440,6 +2692,13 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) if (TX_BD_POFF(bd_prod) < nbd) nbd++; + /* total_pkt_bytes should be set on the first data BD if + * it's not an LSO packet and there is more than one + * data BD. In this case pkt_size is limited by an MTU value. + * However we prefer to set it for an LSO packet (while we don't + * have to) in order to save some CPU cycles in a none-LSO + * case, when we much more care about them. + */ if (total_pkt_bd != NULL) total_pkt_bd->total_pkt_bytes = pkt_size; @@ -2460,6 +2719,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) pbd_e2->parsing_data); DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); + fp->tx_pkt_prod++; /* * Make sure that the BD data is updated before updating the producer * since FW might read the BD right after the producer is updated. @@ -2500,15 +2760,23 @@ int bnx2x_change_mac_addr(struct net_device *dev, void *p) { struct sockaddr *addr = p; struct bnx2x *bp = netdev_priv(dev); + int rc = 0; if (!is_valid_ether_addr((u8 *)(addr->sa_data))) return -EINVAL; + if (netif_running(dev)) { + rc = bnx2x_set_eth_mac(bp, false); + if (rc) + return rc; + } + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + if (netif_running(dev)) - bnx2x_set_eth_mac(bp, 1); + rc = bnx2x_set_eth_mac(bp, true); - return 0; + return rc; } static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) @@ -2525,7 +2793,7 @@ static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) } else { #endif /* status blocks */ - if (CHIP_IS_E2(bp)) + if (!CHIP_IS_E1x(bp)) BNX2X_PCI_FREE(sb->e2_sb, bnx2x_fp(bp, fp_index, status_blk_mapping), @@ -2581,7 +2849,7 @@ void bnx2x_free_fp_mem(struct bnx2x *bp) static inline void set_sb_shortcuts(struct bnx2x *bp, int index) { union host_hc_status_block status_blk = bnx2x_fp(bp, index, status_blk); - if (CHIP_IS_E2(bp)) { + if (!CHIP_IS_E1x(bp)) { bnx2x_fp(bp, index, sb_index_values) = (__le16 *)status_blk.e2_sb->sb.index_values; bnx2x_fp(bp, index, sb_running_index) = @@ -2618,7 +2886,7 @@ static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) if (!IS_FCOE_IDX(index)) { #endif /* status blocks */ - if (CHIP_IS_E2(bp)) + if (!CHIP_IS_E1x(bp)) BNX2X_PCI_ALLOC(sb->e2_sb, &bnx2x_fp(bp, index, status_blk_mapping), sizeof(struct host_hc_status_block_e2)); @@ -2747,30 +3015,6 @@ int bnx2x_alloc_fp_mem(struct bnx2x *bp) return 0; } -static int bnx2x_setup_irqs(struct bnx2x *bp) -{ - int rc = 0; - if (bp->flags & USING_MSIX_FLAG) { - rc = bnx2x_req_msix_irqs(bp); - if (rc) - return rc; - } else { - bnx2x_ack_int(bp); - rc = bnx2x_req_irq(bp); - if (rc) { - BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); - return rc; - } - if (bp->flags & USING_MSI_FLAG) { - bp->dev->irq = bp->pdev->irq; - netdev_info(bp->dev, "using MSI IRQ %d\n", - bp->pdev->irq); - } - } - - return 0; -} - void bnx2x_free_mem_bp(struct bnx2x *bp) { kfree(bp->fp); @@ -3021,3 +3265,57 @@ int bnx2x_resume(struct pci_dev *pdev) return rc; } + + +void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, + u32 cid) +{ + /* ustorm cxt validation */ + cxt->ustorm_ag_context.cdu_usage = + CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), + CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); + /* xcontext validation */ + cxt->xstorm_ag_context.cdu_reserved = + CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), + CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); +} + +static inline void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, + u8 fw_sb_id, u8 sb_index, + u8 ticks) +{ + + u32 addr = BAR_CSTRORM_INTMEM + + CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); + REG_WR8(bp, addr, ticks); + DP(NETIF_MSG_HW, "port %x fw_sb_id %d sb_index %d ticks %d\n", + port, fw_sb_id, sb_index, ticks); +} + +static inline void storm_memset_hc_disable(struct bnx2x *bp, u8 port, + u16 fw_sb_id, u8 sb_index, + u8 disable) +{ + u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); + u32 addr = BAR_CSTRORM_INTMEM + + CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); + u16 flags = REG_RD16(bp, addr); + /* clear and set */ + flags &= ~HC_INDEX_DATA_HC_ENABLED; + flags |= enable_flag; + REG_WR16(bp, addr, flags); + DP(NETIF_MSG_HW, "port %x fw_sb_id %d sb_index %d disable %d\n", + port, fw_sb_id, sb_index, disable); +} + +void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, + u8 sb_index, u8 disable, u16 usec) +{ + int port = BP_PORT(bp); + u8 ticks = usec / BNX2X_BTR; + + storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); + + disable = disable ? 1 : (usec ? 0 : 1); + storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); +} |