diff options
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bfi_enet.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bna_hw_defs.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bna_tx_rx.c | 66 | ||||
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bna_types.h | 49 | ||||
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bnad.c | 333 | ||||
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bnad.h | 13 |
6 files changed, 343 insertions, 125 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bfi_enet.h b/drivers/net/ethernet/brocade/bna/bfi_enet.h index 7d10e335c27d..ae072dc5d238 100644 --- a/drivers/net/ethernet/brocade/bna/bfi_enet.h +++ b/drivers/net/ethernet/brocade/bna/bfi_enet.h @@ -472,7 +472,8 @@ enum bfi_enet_hds_type { struct bfi_enet_rx_cfg { u8 rxq_type; - u8 rsvd[3]; + u8 rsvd[1]; + u16 frame_size; struct { u8 max_header_size; diff --git a/drivers/net/ethernet/brocade/bna/bna_hw_defs.h b/drivers/net/ethernet/brocade/bna/bna_hw_defs.h index af3f7bb0b3b8..2702d02e98d9 100644 --- a/drivers/net/ethernet/brocade/bna/bna_hw_defs.h +++ b/drivers/net/ethernet/brocade/bna/bna_hw_defs.h @@ -322,6 +322,10 @@ do { \ #define BNA_CQ_EF_REMOTE (1 << 19) #define BNA_CQ_EF_LOCAL (1 << 20) +/* CAT2 ASIC does not use bit 21 as per the SPEC. + * Bit 31 is set in every end of frame completion + */ +#define BNA_CQ_EF_EOP (1 << 31) /* Data structures */ diff --git a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c index e02c1265e323..85e63546abe3 100644 --- a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c +++ b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c @@ -1811,6 +1811,7 @@ bna_bfi_rx_enet_start(struct bna_rx *rx) cfg_req->mh.num_entries = htons( bfi_msgq_num_cmd_entries(sizeof(struct bfi_enet_rx_cfg_req))); + cfg_req->rx_cfg.frame_size = bna_enet_mtu_get(&rx->bna->enet); cfg_req->num_queue_sets = rx->num_paths; for (i = 0, rxp_qe = bfa_q_first(&rx->rxp_q); i < rx->num_paths; @@ -1832,8 +1833,17 @@ bna_bfi_rx_enet_start(struct bna_rx *rx) /* Large/Single RxQ */ bfi_enet_datapath_q_init(&cfg_req->q_cfg[i].ql.q, &q0->qpt); - q0->buffer_size = - bna_enet_mtu_get(&rx->bna->enet); + if (q0->multi_buffer) + /* multi-buffer is enabled by allocating + * a new rx with new set of resources. + * q0->buffer_size should be initialized to + * fragment size. + */ + cfg_req->rx_cfg.multi_buffer = + BNA_STATUS_T_ENABLED; + else + q0->buffer_size = + bna_enet_mtu_get(&rx->bna->enet); cfg_req->q_cfg[i].ql.rx_buffer_size = htons((u16)q0->buffer_size); break; @@ -2383,8 +2393,8 @@ bna_rx_res_req(struct bna_rx_config *q_cfg, struct bna_res_info *res_info) u32 hq_depth; u32 dq_depth; - dq_depth = q_cfg->q_depth; - hq_depth = ((q_cfg->rxp_type == BNA_RXP_SINGLE) ? 0 : q_cfg->q_depth); + dq_depth = q_cfg->q0_depth; + hq_depth = ((q_cfg->rxp_type == BNA_RXP_SINGLE) ? 0 : q_cfg->q1_depth); cq_depth = dq_depth + hq_depth; BNA_TO_POWER_OF_2_HIGH(cq_depth); @@ -2501,10 +2511,10 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, struct bna_rxq *q0; struct bna_rxq *q1; struct bna_intr_info *intr_info; - u32 page_count; + struct bna_mem_descr *hqunmap_mem; + struct bna_mem_descr *dqunmap_mem; struct bna_mem_descr *ccb_mem; struct bna_mem_descr *rcb_mem; - struct bna_mem_descr *unmapq_mem; struct bna_mem_descr *cqpt_mem; struct bna_mem_descr *cswqpt_mem; struct bna_mem_descr *cpage_mem; @@ -2514,8 +2524,10 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, struct bna_mem_descr *dsqpt_mem; struct bna_mem_descr *hpage_mem; struct bna_mem_descr *dpage_mem; - int i; - int dpage_count, hpage_count, rcb_idx; + u32 dpage_count, hpage_count; + u32 hq_idx, dq_idx, rcb_idx; + u32 cq_depth, i; + u32 page_count; if (!bna_rx_res_check(rx_mod, rx_cfg)) return NULL; @@ -2523,7 +2535,8 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, intr_info = &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; ccb_mem = &res_info[BNA_RX_RES_MEM_T_CCB].res_u.mem_info.mdl[0]; rcb_mem = &res_info[BNA_RX_RES_MEM_T_RCB].res_u.mem_info.mdl[0]; - unmapq_mem = &res_info[BNA_RX_RES_MEM_T_UNMAPQ].res_u.mem_info.mdl[0]; + dqunmap_mem = &res_info[BNA_RX_RES_MEM_T_UNMAPDQ].res_u.mem_info.mdl[0]; + hqunmap_mem = &res_info[BNA_RX_RES_MEM_T_UNMAPHQ].res_u.mem_info.mdl[0]; cqpt_mem = &res_info[BNA_RX_RES_MEM_T_CQPT].res_u.mem_info.mdl[0]; cswqpt_mem = &res_info[BNA_RX_RES_MEM_T_CSWQPT].res_u.mem_info.mdl[0]; cpage_mem = &res_info[BNA_RX_RES_MEM_T_CQPT_PAGE].res_u.mem_info.mdl[0]; @@ -2575,7 +2588,8 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, } rx->num_paths = rx_cfg->num_paths; - for (i = 0, rcb_idx = 0; i < rx->num_paths; i++) { + for (i = 0, hq_idx = 0, dq_idx = 0, rcb_idx = 0; + i < rx->num_paths; i++) { rxp = bna_rxp_get(rx_mod); list_add_tail(&rxp->qe, &rx->rxp_q); rxp->type = rx_cfg->rxp_type; @@ -2618,9 +2632,13 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, q0->rxp = rxp; q0->rcb = (struct bna_rcb *) rcb_mem[rcb_idx].kva; - q0->rcb->unmap_q = (void *)unmapq_mem[rcb_idx].kva; - rcb_idx++; - q0->rcb->q_depth = rx_cfg->q_depth; + q0->rcb->unmap_q = (void *)dqunmap_mem[dq_idx].kva; + rcb_idx++; dq_idx++; + q0->rcb->q_depth = rx_cfg->q0_depth; + q0->q_depth = rx_cfg->q0_depth; + q0->multi_buffer = rx_cfg->q0_multi_buf; + q0->buffer_size = rx_cfg->q0_buf_size; + q0->num_vecs = rx_cfg->q0_num_vecs; q0->rcb->rxq = q0; q0->rcb->bnad = bna->bnad; q0->rcb->id = 0; @@ -2640,15 +2658,18 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, q1->rxp = rxp; q1->rcb = (struct bna_rcb *) rcb_mem[rcb_idx].kva; - q1->rcb->unmap_q = (void *)unmapq_mem[rcb_idx].kva; - rcb_idx++; - q1->rcb->q_depth = rx_cfg->q_depth; + q1->rcb->unmap_q = (void *)hqunmap_mem[hq_idx].kva; + rcb_idx++; hq_idx++; + q1->rcb->q_depth = rx_cfg->q1_depth; + q1->q_depth = rx_cfg->q1_depth; + q1->multi_buffer = BNA_STATUS_T_DISABLED; + q1->num_vecs = 1; q1->rcb->rxq = q1; q1->rcb->bnad = bna->bnad; q1->rcb->id = 1; q1->buffer_size = (rx_cfg->rxp_type == BNA_RXP_HDS) ? rx_cfg->hds_config.forced_offset - : rx_cfg->small_buff_size; + : rx_cfg->q1_buf_size; q1->rx_packets = q1->rx_bytes = 0; q1->rx_packets_with_error = q1->rxbuf_alloc_failed = 0; @@ -2663,9 +2684,14 @@ bna_rx_create(struct bna *bna, struct bnad *bnad, /* Setup CQ */ rxp->cq.ccb = (struct bna_ccb *) ccb_mem[i].kva; - rxp->cq.ccb->q_depth = rx_cfg->q_depth + - ((rx_cfg->rxp_type == BNA_RXP_SINGLE) ? - 0 : rx_cfg->q_depth); + cq_depth = rx_cfg->q0_depth + + ((rx_cfg->rxp_type == BNA_RXP_SINGLE) ? + 0 : rx_cfg->q1_depth); + /* if multi-buffer is enabled sum of q0_depth + * and q1_depth need not be a power of 2 + */ + BNA_TO_POWER_OF_2_HIGH(cq_depth); + rxp->cq.ccb->q_depth = cq_depth; rxp->cq.ccb->cq = &rxp->cq; rxp->cq.ccb->rcb[0] = q0->rcb; q0->rcb->ccb = rxp->cq.ccb; diff --git a/drivers/net/ethernet/brocade/bna/bna_types.h b/drivers/net/ethernet/brocade/bna/bna_types.h index acedac2ae1c5..621547cd3504 100644 --- a/drivers/net/ethernet/brocade/bna/bna_types.h +++ b/drivers/net/ethernet/brocade/bna/bna_types.h @@ -109,20 +109,21 @@ enum bna_tx_res_req_type { enum bna_rx_mem_type { BNA_RX_RES_MEM_T_CCB = 0, /* CQ context */ BNA_RX_RES_MEM_T_RCB = 1, /* CQ context */ - BNA_RX_RES_MEM_T_UNMAPQ = 2, /* UnmapQ for RxQs */ - BNA_RX_RES_MEM_T_CQPT = 3, /* CQ QPT */ - BNA_RX_RES_MEM_T_CSWQPT = 4, /* S/W QPT */ - BNA_RX_RES_MEM_T_CQPT_PAGE = 5, /* CQPT page */ - BNA_RX_RES_MEM_T_HQPT = 6, /* RX QPT */ - BNA_RX_RES_MEM_T_DQPT = 7, /* RX QPT */ - BNA_RX_RES_MEM_T_HSWQPT = 8, /* RX s/w QPT */ - BNA_RX_RES_MEM_T_DSWQPT = 9, /* RX s/w QPT */ - BNA_RX_RES_MEM_T_DPAGE = 10, /* RX s/w QPT */ - BNA_RX_RES_MEM_T_HPAGE = 11, /* RX s/w QPT */ - BNA_RX_RES_MEM_T_IBIDX = 12, - BNA_RX_RES_MEM_T_RIT = 13, - BNA_RX_RES_T_INTR = 14, /* Rx interrupts */ - BNA_RX_RES_T_MAX = 15 + BNA_RX_RES_MEM_T_UNMAPHQ = 2, + BNA_RX_RES_MEM_T_UNMAPDQ = 3, + BNA_RX_RES_MEM_T_CQPT = 4, + BNA_RX_RES_MEM_T_CSWQPT = 5, + BNA_RX_RES_MEM_T_CQPT_PAGE = 6, + BNA_RX_RES_MEM_T_HQPT = 7, + BNA_RX_RES_MEM_T_DQPT = 8, + BNA_RX_RES_MEM_T_HSWQPT = 9, + BNA_RX_RES_MEM_T_DSWQPT = 10, + BNA_RX_RES_MEM_T_DPAGE = 11, + BNA_RX_RES_MEM_T_HPAGE = 12, + BNA_RX_RES_MEM_T_IBIDX = 13, + BNA_RX_RES_MEM_T_RIT = 14, + BNA_RX_RES_T_INTR = 15, + BNA_RX_RES_T_MAX = 16 }; enum bna_tx_type { @@ -583,6 +584,8 @@ struct bna_rxq { int buffer_size; int q_depth; + u32 num_vecs; + enum bna_status multi_buffer; struct bna_qpt qpt; struct bna_rcb *rcb; @@ -632,6 +635,8 @@ struct bna_ccb { struct bna_rcb *rcb[2]; void *ctrl; /* For bnad */ struct bna_pkt_rate pkt_rate; + u32 pkts_una; + u32 bytes_per_intr; /* Control path */ struct bna_cq *cq; @@ -671,14 +676,22 @@ struct bna_rx_config { int num_paths; enum bna_rxp_type rxp_type; int paused; - int q_depth; int coalescing_timeo; /* * Small/Large (or Header/Data) buffer size to be configured - * for SLR and HDS queue type. Large buffer size comes from - * enet->mtu. + * for SLR and HDS queue type. */ - int small_buff_size; + u32 frame_size; + + /* header or small queue */ + u32 q1_depth; + u32 q1_buf_size; + + /* data or large queue */ + u32 q0_depth; + u32 q0_buf_size; + u32 q0_num_vecs; + enum bna_status q0_multi_buf; enum bna_status rss_status; struct bna_rss_config rss_config; diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index c1357eac3500..0e9f8f5b6009 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -282,27 +282,32 @@ static int bnad_rxq_alloc_init(struct bnad *bnad, struct bna_rcb *rcb) { struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; - int mtu, order; + int order; bnad_rxq_alloc_uninit(bnad, rcb); - mtu = bna_enet_mtu_get(&bnad->bna.enet); - order = get_order(mtu); + order = get_order(rcb->rxq->buffer_size); + + unmap_q->type = BNAD_RXBUF_PAGE; if (bna_is_small_rxq(rcb->id)) { unmap_q->alloc_order = 0; unmap_q->map_size = rcb->rxq->buffer_size; } else { - unmap_q->alloc_order = order; - unmap_q->map_size = - (rcb->rxq->buffer_size > 2048) ? - PAGE_SIZE << order : 2048; + if (rcb->rxq->multi_buffer) { + unmap_q->alloc_order = 0; + unmap_q->map_size = rcb->rxq->buffer_size; + unmap_q->type = BNAD_RXBUF_MULTI_BUFF; + } else { + unmap_q->alloc_order = order; + unmap_q->map_size = + (rcb->rxq->buffer_size > 2048) ? + PAGE_SIZE << order : 2048; + } } BUG_ON(((PAGE_SIZE << order) % unmap_q->map_size)); - unmap_q->type = BNAD_RXBUF_PAGE; - return 0; } @@ -345,10 +350,10 @@ bnad_rxq_cleanup(struct bnad *bnad, struct bna_rcb *rcb) for (i = 0; i < rcb->q_depth; i++) { struct bnad_rx_unmap *unmap = &unmap_q->unmap[i]; - if (BNAD_RXBUF_IS_PAGE(unmap_q->type)) - bnad_rxq_cleanup_page(bnad, unmap); - else + if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) bnad_rxq_cleanup_skb(bnad, unmap); + else + bnad_rxq_cleanup_page(bnad, unmap); } bnad_rxq_alloc_uninit(bnad, rcb); } @@ -480,10 +485,10 @@ bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb) if (!(to_alloc >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)) return; - if (BNAD_RXBUF_IS_PAGE(unmap_q->type)) - bnad_rxq_refill_page(bnad, rcb, to_alloc); - else + if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) bnad_rxq_refill_skb(bnad, rcb, to_alloc); + else + bnad_rxq_refill_page(bnad, rcb, to_alloc); } #define flags_cksum_prot_mask (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ @@ -500,62 +505,91 @@ bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb) #define flags_udp6 (BNA_CQ_EF_IPV6 | \ BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK) -static inline struct sk_buff * -bnad_cq_prepare_skb(struct bnad_rx_ctrl *rx_ctrl, - struct bnad_rx_unmap_q *unmap_q, - struct bnad_rx_unmap *unmap, - u32 length, u32 flags) +static void +bnad_cq_drop_packet(struct bnad *bnad, struct bna_rcb *rcb, + u32 sop_ci, u32 nvecs) { - struct bnad *bnad = rx_ctrl->bnad; - struct sk_buff *skb; + struct bnad_rx_unmap_q *unmap_q; + struct bnad_rx_unmap *unmap; + u32 ci, vec; - if (BNAD_RXBUF_IS_PAGE(unmap_q->type)) { - skb = napi_get_frags(&rx_ctrl->napi); - if (unlikely(!skb)) - return NULL; + unmap_q = rcb->unmap_q; + for (vec = 0, ci = sop_ci; vec < nvecs; vec++) { + unmap = &unmap_q->unmap[ci]; + BNA_QE_INDX_INC(ci, rcb->q_depth); + + if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) + bnad_rxq_cleanup_skb(bnad, unmap); + else + bnad_rxq_cleanup_page(bnad, unmap); + } +} + +static void +bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb, + u32 sop_ci, u32 nvecs, u32 last_fraglen) +{ + struct bnad *bnad; + u32 ci, vec, len, totlen = 0; + struct bnad_rx_unmap_q *unmap_q; + struct bnad_rx_unmap *unmap; + + unmap_q = rcb->unmap_q; + bnad = rcb->bnad; + for (vec = 1, ci = sop_ci; vec <= nvecs; vec++) { + unmap = &unmap_q->unmap[ci]; + BNA_QE_INDX_INC(ci, rcb->q_depth); dma_unmap_page(&bnad->pcidev->dev, dma_unmap_addr(&unmap->vector, dma_addr), unmap->vector.len, DMA_FROM_DEVICE); + + len = (vec == nvecs) ? + last_fraglen : unmap->vector.len; + totlen += len; + skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, - unmap->page, unmap->page_offset, length); - skb->len += length; - skb->data_len += length; - skb->truesize += length; + unmap->page, unmap->page_offset, len); unmap->page = NULL; unmap->vector.len = 0; - - return skb; } - skb = unmap->skb; - BUG_ON(!skb); + skb->len += totlen; + skb->data_len += totlen; + skb->truesize += totlen; +} + +static inline void +bnad_cq_setup_skb(struct bnad *bnad, struct sk_buff *skb, + struct bnad_rx_unmap *unmap, u32 len) +{ + prefetch(skb->data); dma_unmap_single(&bnad->pcidev->dev, dma_unmap_addr(&unmap->vector, dma_addr), unmap->vector.len, DMA_FROM_DEVICE); - skb_put(skb, length); - + skb_put(skb, len); skb->protocol = eth_type_trans(skb, bnad->netdev); unmap->skb = NULL; unmap->vector.len = 0; - return skb; } static u32 bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) { - struct bna_cq_entry *cq, *cmpl; + struct bna_cq_entry *cq, *cmpl, *next_cmpl; struct bna_rcb *rcb = NULL; struct bnad_rx_unmap_q *unmap_q; - struct bnad_rx_unmap *unmap; - struct sk_buff *skb; + struct bnad_rx_unmap *unmap = NULL; + struct sk_buff *skb = NULL; struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate; struct bnad_rx_ctrl *rx_ctrl = ccb->ctrl; - u32 packets = 0, length = 0, flags, masked_flags; + u32 packets = 0, len = 0, totlen = 0; + u32 pi, vec, sop_ci = 0, nvecs = 0; + u32 flags, masked_flags; prefetch(bnad->netdev); @@ -563,9 +597,6 @@ bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) cmpl = &cq[ccb->producer_index]; while (cmpl->valid && (packets < budget)) { - packets++; - flags = ntohl(cmpl->flags); - length = ntohs(cmpl->length); BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length)); if (bna_is_small_rxq(cmpl->rxq_id)) @@ -574,25 +605,68 @@ bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) rcb = ccb->rcb[0]; unmap_q = rcb->unmap_q; - unmap = &unmap_q->unmap[rcb->consumer_index]; - if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR | - BNA_CQ_EF_FCS_ERROR | - BNA_CQ_EF_TOO_LONG))) { - if (BNAD_RXBUF_IS_PAGE(unmap_q->type)) - bnad_rxq_cleanup_page(bnad, unmap); - else - bnad_rxq_cleanup_skb(bnad, unmap); + /* start of packet ci */ + sop_ci = rcb->consumer_index; + + if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) { + unmap = &unmap_q->unmap[sop_ci]; + skb = unmap->skb; + } else { + skb = napi_get_frags(&rx_ctrl->napi); + if (unlikely(!skb)) + break; + } + prefetch(skb); + + flags = ntohl(cmpl->flags); + len = ntohs(cmpl->length); + totlen = len; + nvecs = 1; + + /* Check all the completions for this frame. + * busy-wait doesn't help much, break here. + */ + if (BNAD_RXBUF_IS_MULTI_BUFF(unmap_q->type) && + (flags & BNA_CQ_EF_EOP) == 0) { + pi = ccb->producer_index; + do { + BNA_QE_INDX_INC(pi, ccb->q_depth); + next_cmpl = &cq[pi]; + if (!next_cmpl->valid) + break; + + len = ntohs(next_cmpl->length); + flags = ntohl(next_cmpl->flags); + + nvecs++; + totlen += len; + } while ((flags & BNA_CQ_EF_EOP) == 0); + + if (!next_cmpl->valid) + break; + } + + /* TODO: BNA_CQ_EF_LOCAL ? */ + if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR | + BNA_CQ_EF_FCS_ERROR | + BNA_CQ_EF_TOO_LONG))) { + bnad_cq_drop_packet(bnad, rcb, sop_ci, nvecs); rcb->rxq->rx_packets_with_error++; + goto next; } - skb = bnad_cq_prepare_skb(ccb->ctrl, unmap_q, unmap, - length, flags); + if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) + bnad_cq_setup_skb(bnad, skb, unmap, len); + else + bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len); - if (unlikely(!skb)) - break; + packets++; + rcb->rxq->rx_packets++; + rcb->rxq->rx_bytes += totlen; + ccb->bytes_per_intr += totlen; masked_flags = flags & flags_cksum_prot_mask; @@ -606,21 +680,21 @@ bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) else skb_checksum_none_assert(skb); - rcb->rxq->rx_packets++; - rcb->rxq->rx_bytes += length; - if (flags & BNA_CQ_EF_VLAN) __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(cmpl->vlan_tag)); - if (BNAD_RXBUF_IS_PAGE(unmap_q->type)) - napi_gro_frags(&rx_ctrl->napi); - else + if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) netif_receive_skb(skb); + else + napi_gro_frags(&rx_ctrl->napi); next: - cmpl->valid = 0; - BNA_QE_INDX_INC(rcb->consumer_index, rcb->q_depth); - BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth); + BNA_QE_INDX_ADD(rcb->consumer_index, nvecs, rcb->q_depth); + for (vec = 0; vec < nvecs; vec++) { + cmpl = &cq[ccb->producer_index]; + cmpl->valid = 0; + BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth); + } cmpl = &cq[ccb->producer_index]; } @@ -1930,6 +2004,7 @@ err_return: static void bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config) { + memset(rx_config, 0, sizeof(*rx_config)); rx_config->rx_type = BNA_RX_T_REGULAR; rx_config->num_paths = bnad->num_rxp_per_rx; rx_config->coalescing_timeo = bnad->rx_coalescing_timeo; @@ -1950,10 +2025,39 @@ bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config) memset(&rx_config->rss_config, 0, sizeof(rx_config->rss_config)); } + + rx_config->frame_size = BNAD_FRAME_SIZE(bnad->netdev->mtu); + rx_config->q0_multi_buf = BNA_STATUS_T_DISABLED; + + /* BNA_RXP_SINGLE - one data-buffer queue + * BNA_RXP_SLR - one small-buffer and one large-buffer queues + * BNA_RXP_HDS - one header-buffer and one data-buffer queues + */ + /* TODO: configurable param for queue type */ rx_config->rxp_type = BNA_RXP_SLR; - rx_config->q_depth = bnad->rxq_depth; - rx_config->small_buff_size = BFI_SMALL_RXBUF_SIZE; + if (BNAD_PCI_DEV_IS_CAT2(bnad) && + rx_config->frame_size > 4096) { + /* though size_routing_enable is set in SLR, + * small packets may get routed to same rxq. + * set buf_size to 2048 instead of PAGE_SIZE. + */ + rx_config->q0_buf_size = 2048; + /* this should be in multiples of 2 */ + rx_config->q0_num_vecs = 4; + rx_config->q0_depth = bnad->rxq_depth * rx_config->q0_num_vecs; + rx_config->q0_multi_buf = BNA_STATUS_T_ENABLED; + } else { + rx_config->q0_buf_size = rx_config->frame_size; + rx_config->q0_num_vecs = 1; + rx_config->q0_depth = bnad->rxq_depth; + } + + /* initialize for q1 for BNA_RXP_SLR/BNA_RXP_HDS */ + if (rx_config->rxp_type == BNA_RXP_SLR) { + rx_config->q1_depth = bnad->rxq_depth; + rx_config->q1_buf_size = BFI_SMALL_RXBUF_SIZE; + } rx_config->vlan_strip_status = BNA_STATUS_T_ENABLED; } @@ -1969,6 +2073,49 @@ bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id) } /* Called with mutex_lock(&bnad->conf_mutex) held */ +u32 +bnad_reinit_rx(struct bnad *bnad) +{ + struct net_device *netdev = bnad->netdev; + u32 err = 0, current_err = 0; + u32 rx_id = 0, count = 0; + unsigned long flags; + + /* destroy and create new rx objects */ + for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) { + if (!bnad->rx_info[rx_id].rx) + continue; + bnad_destroy_rx(bnad, rx_id); + } + + spin_lock_irqsave(&bnad->bna_lock, flags); + bna_enet_mtu_set(&bnad->bna.enet, + BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL); + spin_unlock_irqrestore(&bnad->bna_lock, flags); + + for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) { + count++; + current_err = bnad_setup_rx(bnad, rx_id); + if (current_err && !err) { + err = current_err; + pr_err("RXQ:%u setup failed\n", rx_id); + } + } + + /* restore rx configuration */ + if (bnad->rx_info[0].rx && !err) { + bnad_restore_vlans(bnad, 0); + bnad_enable_default_bcast(bnad); + spin_lock_irqsave(&bnad->bna_lock, flags); + bnad_mac_addr_set_locked(bnad, netdev->dev_addr); + spin_unlock_irqrestore(&bnad->bna_lock, flags); + bnad_set_rx_mode(netdev); + } + + return count; +} + +/* Called with bnad_conf_lock() held */ void bnad_destroy_rx(struct bnad *bnad, u32 rx_id) { @@ -2047,13 +2194,19 @@ bnad_setup_rx(struct bnad *bnad, u32 rx_id) spin_unlock_irqrestore(&bnad->bna_lock, flags); /* Fill Unmap Q memory requirements */ - BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPQ], - rx_config->num_paths + - ((rx_config->rxp_type == BNA_RXP_SINGLE) ? - 0 : rx_config->num_paths), - ((bnad->rxq_depth * sizeof(struct bnad_rx_unmap)) + - sizeof(struct bnad_rx_unmap_q))); - + BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPDQ], + rx_config->num_paths, + (rx_config->q0_depth * + sizeof(struct bnad_rx_unmap)) + + sizeof(struct bnad_rx_unmap_q)); + + if (rx_config->rxp_type != BNA_RXP_SINGLE) { + BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPHQ], + rx_config->num_paths, + (rx_config->q1_depth * + sizeof(struct bnad_rx_unmap) + + sizeof(struct bnad_rx_unmap_q))); + } /* Allocate resource */ err = bnad_rx_res_alloc(bnad, res_info, rx_id); if (err) @@ -2548,7 +2701,6 @@ bnad_open(struct net_device *netdev) int err; struct bnad *bnad = netdev_priv(netdev); struct bna_pause_config pause_config; - int mtu; unsigned long flags; mutex_lock(&bnad->conf_mutex); @@ -2567,10 +2719,9 @@ bnad_open(struct net_device *netdev) pause_config.tx_pause = 0; pause_config.rx_pause = 0; - mtu = ETH_HLEN + VLAN_HLEN + bnad->netdev->mtu + ETH_FCS_LEN; - spin_lock_irqsave(&bnad->bna_lock, flags); - bna_enet_mtu_set(&bnad->bna.enet, mtu, NULL); + bna_enet_mtu_set(&bnad->bna.enet, + BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL); bna_enet_pause_config(&bnad->bna.enet, &pause_config, NULL); bna_enet_enable(&bnad->bna.enet); spin_unlock_irqrestore(&bnad->bna_lock, flags); @@ -3092,14 +3243,14 @@ bnad_set_mac_address(struct net_device *netdev, void *mac_addr) } static int -bnad_mtu_set(struct bnad *bnad, int mtu) +bnad_mtu_set(struct bnad *bnad, int frame_size) { unsigned long flags; init_completion(&bnad->bnad_completions.mtu_comp); spin_lock_irqsave(&bnad->bna_lock, flags); - bna_enet_mtu_set(&bnad->bna.enet, mtu, bnad_cb_enet_mtu_set); + bna_enet_mtu_set(&bnad->bna.enet, frame_size, bnad_cb_enet_mtu_set); spin_unlock_irqrestore(&bnad->bna_lock, flags); wait_for_completion(&bnad->bnad_completions.mtu_comp); @@ -3110,18 +3261,34 @@ bnad_mtu_set(struct bnad *bnad, int mtu) static int bnad_change_mtu(struct net_device *netdev, int new_mtu) { - int err, mtu = netdev->mtu; + int err, mtu; struct bnad *bnad = netdev_priv(netdev); + u32 rx_count = 0, frame, new_frame; if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU) return -EINVAL; mutex_lock(&bnad->conf_mutex); + mtu = netdev->mtu; netdev->mtu = new_mtu; - mtu = ETH_HLEN + VLAN_HLEN + new_mtu + ETH_FCS_LEN; - err = bnad_mtu_set(bnad, mtu); + frame = BNAD_FRAME_SIZE(mtu); + new_frame = BNAD_FRAME_SIZE(new_mtu); + + /* check if multi-buffer needs to be enabled */ + if (BNAD_PCI_DEV_IS_CAT2(bnad) && + netif_running(bnad->netdev)) { + /* only when transition is over 4K */ + if ((frame <= 4096 && new_frame > 4096) || + (frame > 4096 && new_frame <= 4096)) + rx_count = bnad_reinit_rx(bnad); + } + + /* rx_count > 0 - new rx created + * - Linux set err = 0 and return + */ + err = bnad_mtu_set(bnad, new_frame); if (err) err = -EBUSY; diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h index 9d10c69f5889..2e6b943262a2 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.h +++ b/drivers/net/ethernet/brocade/bna/bnad.h @@ -105,6 +105,9 @@ struct bnad_rx_ctrl { #define BNAD_NUM_TXQ (bnad->num_tx * bnad->num_txq_per_tx) #define BNAD_NUM_RXP (bnad->num_rx * bnad->num_rxp_per_rx) +#define BNAD_FRAME_SIZE(_mtu) \ + (ETH_HLEN + VLAN_HLEN + (_mtu) + ETH_FCS_LEN) + /* * DATA STRUCTURES */ @@ -241,12 +244,13 @@ struct bnad_rx_unmap { enum bnad_rxbuf_type { BNAD_RXBUF_NONE = 0, - BNAD_RXBUF_SKB = 1, + BNAD_RXBUF_SK_BUFF = 1, BNAD_RXBUF_PAGE = 2, - BNAD_RXBUF_MULTI = 3 + BNAD_RXBUF_MULTI_BUFF = 3 }; -#define BNAD_RXBUF_IS_PAGE(_type) ((_type) == BNAD_RXBUF_PAGE) +#define BNAD_RXBUF_IS_SK_BUFF(_type) ((_type) == BNAD_RXBUF_SK_BUFF) +#define BNAD_RXBUF_IS_MULTI_BUFF(_type) ((_type) == BNAD_RXBUF_MULTI_BUFF) struct bnad_rx_unmap_q { int reuse_pi; @@ -256,6 +260,9 @@ struct bnad_rx_unmap_q { struct bnad_rx_unmap unmap[0]; }; +#define BNAD_PCI_DEV_IS_CAT2(_bnad) \ + ((_bnad)->pcidev->device == BFA_PCI_DEVICE_ID_CT2) + /* Bit mask values for bnad->cfg_flags */ #define BNAD_CF_DIM_ENABLED 0x01 /* DIM */ #define BNAD_CF_PROMISC 0x02 |