diff options
Diffstat (limited to 'drivers/net/enic/enic_main.c')
| -rw-r--r-- | drivers/net/enic/enic_main.c | 145 |
1 files changed, 114 insertions, 31 deletions
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c index a25d303d..fd940c58 100644 --- a/drivers/net/enic/enic_main.c +++ b/drivers/net/enic/enic_main.c @@ -69,12 +69,12 @@ enic_rxmbuf_queue_release(__rte_unused struct enic *enic, struct vnic_rq *rq) } } -static void enic_free_wq_buf(struct vnic_wq_buf *buf) +static void enic_free_wq_buf(struct rte_mbuf **buf) { - struct rte_mbuf *mbuf = (struct rte_mbuf *)buf->mb; + struct rte_mbuf *mbuf = *buf; rte_pktmbuf_free_seg(mbuf); - buf->mb = NULL; + *buf = NULL; } static void enic_log_q_error(struct enic *enic) @@ -320,6 +320,8 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq) * enic_start_rq(). */ rq->need_initial_post = true; + /* Initialize fetch index while RQ is disabled */ + iowrite32(0, &rq->ctrl->fetch_index); return 0; } @@ -345,7 +347,6 @@ enic_initial_post_rx(struct enic *enic, struct vnic_rq *rq) dev_debug(enic, "port=%u, qidx=%u, Write %u posted idx, %u sw held\n", enic->port_id, rq->index, rq->posted_index, rq->rx_nb_hold); iowrite32(rq->posted_index, &rq->ctrl->posted_index); - iowrite32(0, &rq->ctrl->fetch_index); rte_rmb(); rq->need_initial_post = false; } @@ -492,6 +493,42 @@ static void enic_rxq_intr_deinit(struct enic *enic) } } +static void enic_prep_wq_for_simple_tx(struct enic *enic, uint16_t queue_idx) +{ + struct wq_enet_desc *desc; + struct vnic_wq *wq; + unsigned int i; + + /* + * Fill WQ descriptor fields that never change. Every descriptor is + * one packet, so set EOP. Also set CQ_ENTRY every ENIC_WQ_CQ_THRESH + * descriptors (i.e. request one completion update every 32 packets). + */ + wq = &enic->wq[queue_idx]; + desc = (struct wq_enet_desc *)wq->ring.descs; + for (i = 0; i < wq->ring.desc_count; i++, desc++) { + desc->header_length_flags = 1 << WQ_ENET_FLAGS_EOP_SHIFT; + if (i % ENIC_WQ_CQ_THRESH == ENIC_WQ_CQ_THRESH - 1) + desc->header_length_flags |= + (1 << WQ_ENET_FLAGS_CQ_ENTRY_SHIFT); + } +} + +static void pick_rx_handler(struct enic *enic) +{ + struct rte_eth_dev *eth_dev; + + /* Use the non-scatter, simplified RX handler if possible. */ + eth_dev = enic->rte_dev; + if (enic->rq_count > 0 && enic->rq[0].data_queue_enable == 0) { + PMD_INIT_LOG(DEBUG, " use the non-scatter Rx handler"); + eth_dev->rx_pkt_burst = &enic_noscatter_recv_pkts; + } else { + PMD_INIT_LOG(DEBUG, " use the normal Rx handler"); + eth_dev->rx_pkt_burst = &enic_recv_pkts; + } +} + int enic_enable(struct enic *enic) { unsigned int index; @@ -534,6 +571,22 @@ int enic_enable(struct enic *enic) } } + /* + * Use the simple TX handler if possible. All offloads must be + * disabled. + */ + if (eth_dev->data->dev_conf.txmode.offloads == 0) { + PMD_INIT_LOG(DEBUG, " use the simple tx handler"); + eth_dev->tx_pkt_burst = &enic_simple_xmit_pkts; + for (index = 0; index < enic->wq_count; index++) + enic_prep_wq_for_simple_tx(enic, index); + } else { + PMD_INIT_LOG(DEBUG, " use the default tx handler"); + eth_dev->tx_pkt_burst = &enic_xmit_pkts; + } + + pick_rx_handler(enic); + for (index = 0; index < enic->wq_count; index++) enic_start_wq(enic, index); for (index = 0; index < enic->rq_count; index++) @@ -586,6 +639,19 @@ void enic_free_rq(void *rxq) enic = vnic_dev_priv(rq_sop->vdev); rq_data = &enic->rq[rq_sop->data_queue_idx]; + if (rq_sop->free_mbufs) { + struct rte_mbuf **mb; + int i; + + mb = rq_sop->free_mbufs; + for (i = ENIC_RX_BURST_MAX - rq_sop->num_free_mbufs; + i < ENIC_RX_BURST_MAX; i++) + rte_pktmbuf_free(mb[i]); + rte_free(rq_sop->free_mbufs); + rq_sop->free_mbufs = NULL; + rq_sop->num_free_mbufs = 0; + } + enic_rxmbuf_queue_release(enic, rq_sop); if (rq_data->in_use) enic_rxmbuf_queue_release(enic, rq_data); @@ -742,20 +808,20 @@ int enic_alloc_rq(struct enic *enic, uint16_t queue_idx, } /* number of descriptors have to be a multiple of 32 */ - nb_sop_desc = (nb_desc / mbufs_per_pkt) & ~0x1F; - nb_data_desc = (nb_desc - nb_sop_desc) & ~0x1F; + nb_sop_desc = (nb_desc / mbufs_per_pkt) & ENIC_ALIGN_DESCS_MASK; + nb_data_desc = (nb_desc - nb_sop_desc) & ENIC_ALIGN_DESCS_MASK; rq_sop->max_mbufs_per_pkt = mbufs_per_pkt; rq_data->max_mbufs_per_pkt = mbufs_per_pkt; if (mbufs_per_pkt > 1) { - min_sop = 64; + min_sop = ENIC_RX_BURST_MAX; max_sop = ((enic->config.rq_desc_count / - (mbufs_per_pkt - 1)) & ~0x1F); + (mbufs_per_pkt - 1)) & ENIC_ALIGN_DESCS_MASK); min_data = min_sop * (mbufs_per_pkt - 1); max_data = enic->config.rq_desc_count; } else { - min_sop = 64; + min_sop = ENIC_RX_BURST_MAX; max_sop = enic->config.rq_desc_count; min_data = 0; max_data = 0; @@ -826,10 +892,21 @@ int enic_alloc_rq(struct enic *enic, uint16_t queue_idx, goto err_free_sop_mbuf; } + rq_sop->free_mbufs = (struct rte_mbuf **) + rte_zmalloc_socket("rq->free_mbufs", + sizeof(struct rte_mbuf *) * + ENIC_RX_BURST_MAX, + RTE_CACHE_LINE_SIZE, rq_sop->socket_id); + if (rq_sop->free_mbufs == NULL) + goto err_free_data_mbuf; + rq_sop->num_free_mbufs = 0; + rq_sop->tot_nb_desc = nb_desc; /* squirl away for MTU update function */ return 0; +err_free_data_mbuf: + rte_free(rq_data->mbuf_ring); err_free_sop_mbuf: rte_free(rq_sop->mbuf_ring); err_free_cq: @@ -869,25 +946,15 @@ int enic_alloc_wq(struct enic *enic, uint16_t queue_idx, static int instance; wq->socket_id = socket_id; - if (nb_desc) { - if (nb_desc > enic->config.wq_desc_count) { - dev_warning(enic, - "WQ %d - number of tx desc in cmd line (%d)"\ - "is greater than that in the UCSM/CIMC adapter"\ - "policy. Applying the value in the adapter "\ - "policy (%d)\n", - queue_idx, nb_desc, enic->config.wq_desc_count); - } else if (nb_desc != enic->config.wq_desc_count) { - enic->config.wq_desc_count = nb_desc; - dev_info(enic, - "TX Queues - effective number of descs:%d\n", - nb_desc); - } - } + /* + * rte_eth_tx_queue_setup() checks min, max, and alignment. So just + * print an info message for diagnostics. + */ + dev_info(enic, "TX Queues - effective number of descs:%d\n", nb_desc); /* Allocate queue resources */ err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx, - enic->config.wq_desc_count, + nb_desc, sizeof(struct wq_enet_desc)); if (err) { dev_err(enic, "error in allocation of wq\n"); @@ -895,7 +962,7 @@ int enic_alloc_wq(struct enic *enic, uint16_t queue_idx, } err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index, - socket_id, enic->config.wq_desc_count, + socket_id, nb_desc, sizeof(struct cq_enet_wq_desc)); if (err) { vnic_wq_free(wq); @@ -1197,7 +1264,7 @@ int enic_set_rss_conf(struct enic *enic, struct rte_eth_rss_conf *rss_conf) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV4; if (rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) { rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_UDP_IPV4; - if (ENIC_SETTING(enic, RSSHASH_UDP_WEAK)) { + if (enic->udp_rss_weak) { /* * 'TCP' is not a typo. The "weak" version of * UDP RSS requires both the TCP and UDP bits @@ -1213,7 +1280,7 @@ int enic_set_rss_conf(struct enic *enic, struct rte_eth_rss_conf *rss_conf) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV6; if (rss_hf & (ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_IPV6_UDP_EX)) { rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_UDP_IPV6; - if (ENIC_SETTING(enic, RSSHASH_UDP_WEAK)) + if (enic->udp_rss_weak) rss_hash_type |= NIC_CFG_RSS_HASH_TYPE_TCP_IPV6; } } else { @@ -1237,8 +1304,11 @@ int enic_set_rss_conf(struct enic *enic, struct rte_eth_rss_conf *rss_conf) enic->rss_hf = rss_hf; enic->rss_hash_type = rss_hash_type; enic->rss_enable = rss_enable; + } else { + dev_err(enic, "Failed to update RSS configurations." + " hash=0x%x\n", rss_hash_type); } - return 0; + return ret; } int enic_set_vlan_strip(struct enic *enic) @@ -1488,7 +1558,7 @@ int enic_set_mtu(struct enic *enic, uint16_t new_mtu) /* put back the real receive function */ rte_mb(); - eth_dev->rx_pkt_burst = enic_recv_pkts; + pick_rx_handler(enic); rte_mb(); /* restart Rx traffic */ @@ -1591,7 +1661,18 @@ static int enic_dev_init(struct enic *enic) PKT_TX_OUTER_IP_CKSUM | PKT_TX_TUNNEL_MASK; enic->overlay_offload = true; + enic->vxlan_port = ENIC_DEFAULT_VXLAN_PORT; dev_info(enic, "Overlay offload is enabled\n"); + /* + * Reset the vxlan port to the default, as the NIC firmware + * does not reset it automatically and keeps the old setting. + */ + if (vnic_dev_overlay_offload_cfg(enic->vdev, + OVERLAY_CFG_VXLAN_PORT_UPDATE, + ENIC_DEFAULT_VXLAN_PORT)) { + dev_err(enic, "failed to update vxlan port\n"); + return -EINVAL; + } } return 0; @@ -1643,8 +1724,10 @@ int enic_probe(struct enic *enic) } /* Set ingress vlan rewrite mode before vnic initialization */ + dev_debug(enic, "Set ig_vlan_rewrite_mode=%u\n", + enic->ig_vlan_rewrite_mode); err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev, - IG_VLAN_REWRITE_MODE_PASS_THRU); + enic->ig_vlan_rewrite_mode); if (err) { dev_err(enic, "Failed to set ingress vlan rewrite mode, aborting.\n"); |