Lines Matching refs:vi
347 struct virtnet_info *vi = vq->vdev->priv; in skb_xmit_done() local
348 struct napi_struct *napi = &vi->sq[vq2txq(vq)].napi; in skb_xmit_done()
357 netif_wake_subqueue(vi->dev, vq2txq(vq)); in skb_xmit_done()
378 static struct sk_buff *page_to_skb(struct virtnet_info *vi, in page_to_skb() argument
395 hdr_len = vi->hdr_len; in page_to_skb()
396 if (vi->mergeable_rx_bufs) in page_to_skb()
450 if (vi->mergeable_rx_bufs) { in page_to_skb()
499 static int __virtnet_xdp_xmit_one(struct virtnet_info *vi, in __virtnet_xdp_xmit_one() argument
506 if (unlikely(xdpf->headroom < vi->hdr_len)) in __virtnet_xdp_xmit_one()
510 xdpf->data -= vi->hdr_len; in __virtnet_xdp_xmit_one()
513 memset(hdr, 0, vi->hdr_len); in __virtnet_xdp_xmit_one()
514 xdpf->len += vi->hdr_len; in __virtnet_xdp_xmit_one()
534 #define virtnet_xdp_get_sq(vi) ({ \ argument
537 typeof(vi) v = (vi); \
553 #define virtnet_xdp_put_sq(vi, q) { \ argument
555 typeof(vi) v = (vi); \
567 struct virtnet_info *vi = netdev_priv(dev); in virtnet_xdp_xmit() local
568 struct receive_queue *rq = vi->rq; in virtnet_xdp_xmit()
587 sq = virtnet_xdp_get_sq(vi); in virtnet_xdp_xmit()
613 if (__virtnet_xdp_xmit_one(vi, sq, xdpf)) in virtnet_xdp_xmit()
632 virtnet_xdp_put_sq(vi, sq); in virtnet_xdp_xmit()
636 static unsigned int virtnet_get_headroom(struct virtnet_info *vi) in virtnet_get_headroom() argument
638 return vi->xdp_enabled ? VIRTIO_XDP_HEADROOM : 0; in virtnet_get_headroom()
706 struct virtnet_info *vi, in receive_small() argument
717 unsigned int headroom = vi->hdr_len + header_offset; in receive_small()
726 len -= vi->hdr_len; in receive_small()
747 if (unlikely(xdp_headroom < virtnet_get_headroom(vi))) { in receive_small()
749 unsigned int tlen = len + vi->hdr_len; in receive_small()
752 xdp_headroom = virtnet_get_headroom(vi); in receive_small()
754 headroom = vi->hdr_len + header_offset; in receive_small()
769 xdp_prepare_buff(&xdp, buf + VIRTNET_RX_PAD + vi->hdr_len, in receive_small()
791 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_small()
809 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_small()
826 memcpy(skb_vnet_hdr(skb), buf, vi->hdr_len); in receive_small()
846 struct virtnet_info *vi, in receive_big() argument
854 page_to_skb(vi, rq, page, 0, len, PAGE_SIZE, true, 0, 0); in receive_big()
856 stats->bytes += len - vi->hdr_len; in receive_big()
869 struct virtnet_info *vi, in receive_mergeable() argument
878 u16 num_buf = virtio16_to_cpu(vi->vdev, hdr->num_buffers); in receive_mergeable()
890 stats->bytes += len - vi->hdr_len; in receive_mergeable()
926 headroom < virtnet_get_headroom(vi))) { in receive_mergeable()
945 xdp_init_buff(&xdp, frame_sz - vi->hdr_len, &rq->xdp_rxq); in receive_mergeable()
946 xdp_prepare_buff(&xdp, data - VIRTIO_XDP_HEADROOM + vi->hdr_len, in receive_mergeable()
947 VIRTIO_XDP_HEADROOM, len - vi->hdr_len, true); in receive_mergeable()
962 vi->hdr_len - metasize; in receive_mergeable()
967 len = xdp.data_end - xdp.data + vi->hdr_len + metasize; in receive_mergeable()
972 head_skb = page_to_skb(vi, rq, xdp_page, offset, in receive_mergeable()
988 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_mergeable()
1015 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_mergeable()
1025 head_skb = page_to_skb(vi, rq, page, offset, len, truesize, !xdp_prog, in receive_mergeable()
1038 virtio16_to_cpu(vi->vdev, in receive_mergeable()
1112 static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq, in receive_buf() argument
1117 struct net_device *dev = vi->dev; in receive_buf()
1121 if (unlikely(len < vi->hdr_len + ETH_HLEN)) { in receive_buf()
1124 if (vi->mergeable_rx_bufs) { in receive_buf()
1126 } else if (vi->big_packets) { in receive_buf()
1134 if (vi->mergeable_rx_bufs) in receive_buf()
1135 skb = receive_mergeable(dev, vi, rq, buf, ctx, len, xdp_xmit, in receive_buf()
1137 else if (vi->big_packets) in receive_buf()
1138 skb = receive_big(dev, vi, rq, buf, len, stats); in receive_buf()
1140 skb = receive_small(dev, vi, rq, buf, ctx, len, xdp_xmit, stats); in receive_buf()
1151 virtio_is_little_endian(vi->vdev))) { in receive_buf()
1176 static int add_recvbuf_small(struct virtnet_info *vi, struct receive_queue *rq, in add_recvbuf_small() argument
1181 unsigned int xdp_headroom = virtnet_get_headroom(vi); in add_recvbuf_small()
1183 int len = vi->hdr_len + VIRTNET_RX_PAD + GOOD_PACKET_LEN + xdp_headroom; in add_recvbuf_small()
1195 vi->hdr_len + GOOD_PACKET_LEN); in add_recvbuf_small()
1202 static int add_recvbuf_big(struct virtnet_info *vi, struct receive_queue *rq, in add_recvbuf_big() argument
1235 sg_set_buf(&rq->sg[0], p, vi->hdr_len); in add_recvbuf_big()
1267 static int add_recvbuf_mergeable(struct virtnet_info *vi, in add_recvbuf_mergeable() argument
1271 unsigned int headroom = virtnet_get_headroom(vi); in add_recvbuf_mergeable()
1317 static bool try_fill_recv(struct virtnet_info *vi, struct receive_queue *rq, in try_fill_recv() argument
1324 if (vi->mergeable_rx_bufs) in try_fill_recv()
1325 err = add_recvbuf_mergeable(vi, rq, gfp); in try_fill_recv()
1326 else if (vi->big_packets) in try_fill_recv()
1327 err = add_recvbuf_big(vi, rq, gfp); in try_fill_recv()
1329 err = add_recvbuf_small(vi, rq, gfp); in try_fill_recv()
1348 struct virtnet_info *vi = rvq->vdev->priv; in skb_recv_done() local
1349 struct receive_queue *rq = &vi->rq[vq2rxq(rvq)]; in skb_recv_done()
1367 static void virtnet_napi_tx_enable(struct virtnet_info *vi, in virtnet_napi_tx_enable() argument
1377 if (!vi->affinity_hint_set) { in virtnet_napi_tx_enable()
1393 struct virtnet_info *vi = in refill_work() local
1398 for (i = 0; i < vi->curr_queue_pairs; i++) { in refill_work()
1399 struct receive_queue *rq = &vi->rq[i]; in refill_work()
1402 still_empty = !try_fill_recv(vi, rq, GFP_KERNEL); in refill_work()
1409 schedule_delayed_work(&vi->refill, HZ/2); in refill_work()
1416 struct virtnet_info *vi = rq->vq->vdev->priv; in virtnet_receive() local
1422 if (!vi->big_packets || vi->mergeable_rx_bufs) { in virtnet_receive()
1427 receive_buf(vi, rq, buf, len, ctx, xdp_xmit, &stats); in virtnet_receive()
1433 receive_buf(vi, rq, buf, len, NULL, xdp_xmit, &stats); in virtnet_receive()
1439 if (!try_fill_recv(vi, rq, GFP_ATOMIC)) in virtnet_receive()
1440 schedule_delayed_work(&vi->refill, 0); in virtnet_receive()
1492 static bool is_xdp_raw_buffer_queue(struct virtnet_info *vi, int q) in is_xdp_raw_buffer_queue() argument
1494 if (q < (vi->curr_queue_pairs - vi->xdp_queue_pairs)) in is_xdp_raw_buffer_queue()
1496 else if (q < vi->curr_queue_pairs) in is_xdp_raw_buffer_queue()
1504 struct virtnet_info *vi = rq->vq->vdev->priv; in virtnet_poll_cleantx() local
1506 struct send_queue *sq = &vi->sq[index]; in virtnet_poll_cleantx()
1507 struct netdev_queue *txq = netdev_get_tx_queue(vi->dev, index); in virtnet_poll_cleantx()
1509 if (!sq->napi.weight || is_xdp_raw_buffer_queue(vi, index)) in virtnet_poll_cleantx()
1529 struct virtnet_info *vi = rq->vq->vdev->priv; in virtnet_poll() local
1546 sq = virtnet_xdp_get_sq(vi); in virtnet_poll()
1552 virtnet_xdp_put_sq(vi, sq); in virtnet_poll()
1560 struct virtnet_info *vi = netdev_priv(dev); in virtnet_open() local
1563 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_open()
1564 if (i < vi->curr_queue_pairs) in virtnet_open()
1566 if (!try_fill_recv(vi, &vi->rq[i], GFP_KERNEL)) in virtnet_open()
1567 schedule_delayed_work(&vi->refill, 0); in virtnet_open()
1569 err = xdp_rxq_info_reg(&vi->rq[i].xdp_rxq, dev, i, vi->rq[i].napi.napi_id); in virtnet_open()
1573 err = xdp_rxq_info_reg_mem_model(&vi->rq[i].xdp_rxq, in virtnet_open()
1576 xdp_rxq_info_unreg(&vi->rq[i].xdp_rxq); in virtnet_open()
1580 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_open()
1581 virtnet_napi_tx_enable(vi, vi->sq[i].vq, &vi->sq[i].napi); in virtnet_open()
1590 struct virtnet_info *vi = sq->vq->vdev->priv; in virtnet_poll_tx() local
1596 if (unlikely(is_xdp_raw_buffer_queue(vi, index))) { in virtnet_poll_tx()
1602 txq = netdev_get_tx_queue(vi->dev, index); in virtnet_poll_tx()
1637 struct virtnet_info *vi = sq->vq->vdev->priv; in xmit_skb() local
1639 unsigned hdr_len = vi->hdr_len; in xmit_skb()
1642 pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest); in xmit_skb()
1644 can_push = vi->any_header_sg && in xmit_skb()
1655 virtio_is_little_endian(vi->vdev), false, in xmit_skb()
1659 if (vi->mergeable_rx_bufs) in xmit_skb()
1682 struct virtnet_info *vi = netdev_priv(dev); in start_xmit() local
1684 struct send_queue *sq = &vi->sq[qnum]; in start_xmit()
1763 static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd, in virtnet_send_command() argument
1771 BUG_ON(!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ)); in virtnet_send_command()
1773 vi->ctrl->status = ~0; in virtnet_send_command()
1774 vi->ctrl->hdr.class = class; in virtnet_send_command()
1775 vi->ctrl->hdr.cmd = cmd; in virtnet_send_command()
1777 sg_init_one(&hdr, &vi->ctrl->hdr, sizeof(vi->ctrl->hdr)); in virtnet_send_command()
1784 sg_init_one(&stat, &vi->ctrl->status, sizeof(vi->ctrl->status)); in virtnet_send_command()
1788 ret = virtqueue_add_sgs(vi->cvq, sgs, out_num, 1, vi, GFP_ATOMIC); in virtnet_send_command()
1790 dev_warn(&vi->vdev->dev, in virtnet_send_command()
1795 if (unlikely(!virtqueue_kick(vi->cvq))) in virtnet_send_command()
1796 return vi->ctrl->status == VIRTIO_NET_OK; in virtnet_send_command()
1801 while (!virtqueue_get_buf(vi->cvq, &tmp) && in virtnet_send_command()
1802 !virtqueue_is_broken(vi->cvq)) in virtnet_send_command()
1805 return vi->ctrl->status == VIRTIO_NET_OK; in virtnet_send_command()
1810 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_mac_address() local
1811 struct virtio_device *vdev = vi->vdev; in virtnet_set_mac_address()
1816 if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) in virtnet_set_mac_address()
1829 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC, in virtnet_set_mac_address()
1858 struct virtnet_info *vi = netdev_priv(dev); in virtnet_stats() local
1862 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_stats()
1864 struct receive_queue *rq = &vi->rq[i]; in virtnet_stats()
1865 struct send_queue *sq = &vi->sq[i]; in virtnet_stats()
1893 static void virtnet_ack_link_announce(struct virtnet_info *vi) in virtnet_ack_link_announce() argument
1896 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_ANNOUNCE, in virtnet_ack_link_announce()
1898 dev_warn(&vi->dev->dev, "Failed to ack link announce.\n"); in virtnet_ack_link_announce()
1902 static int _virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) in _virtnet_set_queues() argument
1905 struct net_device *dev = vi->dev; in _virtnet_set_queues()
1907 if (!vi->has_cvq || !virtio_has_feature(vi->vdev, VIRTIO_NET_F_MQ)) in _virtnet_set_queues()
1910 vi->ctrl->mq.virtqueue_pairs = cpu_to_virtio16(vi->vdev, queue_pairs); in _virtnet_set_queues()
1911 sg_init_one(&sg, &vi->ctrl->mq, sizeof(vi->ctrl->mq)); in _virtnet_set_queues()
1913 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MQ, in _virtnet_set_queues()
1919 vi->curr_queue_pairs = queue_pairs; in _virtnet_set_queues()
1922 schedule_delayed_work(&vi->refill, 0); in _virtnet_set_queues()
1928 static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) in virtnet_set_queues() argument
1933 err = _virtnet_set_queues(vi, queue_pairs); in virtnet_set_queues()
1940 struct virtnet_info *vi = netdev_priv(dev); in virtnet_close() local
1944 cancel_delayed_work_sync(&vi->refill); in virtnet_close()
1946 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_close()
1947 xdp_rxq_info_unreg(&vi->rq[i].xdp_rxq); in virtnet_close()
1948 napi_disable(&vi->rq[i].napi); in virtnet_close()
1949 virtnet_napi_tx_disable(&vi->sq[i].napi); in virtnet_close()
1957 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_rx_mode() local
1967 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_RX)) in virtnet_set_rx_mode()
1970 vi->ctrl->promisc = ((dev->flags & IFF_PROMISC) != 0); in virtnet_set_rx_mode()
1971 vi->ctrl->allmulti = ((dev->flags & IFF_ALLMULTI) != 0); in virtnet_set_rx_mode()
1973 sg_init_one(sg, &vi->ctrl->promisc, sizeof(vi->ctrl->promisc)); in virtnet_set_rx_mode()
1975 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX, in virtnet_set_rx_mode()
1978 vi->ctrl->promisc ? "en" : "dis"); in virtnet_set_rx_mode()
1980 sg_init_one(sg, &vi->ctrl->allmulti, sizeof(vi->ctrl->allmulti)); in virtnet_set_rx_mode()
1982 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX, in virtnet_set_rx_mode()
1985 vi->ctrl->allmulti ? "en" : "dis"); in virtnet_set_rx_mode()
1999 mac_data->entries = cpu_to_virtio32(vi->vdev, uc_count); in virtnet_set_rx_mode()
2010 mac_data->entries = cpu_to_virtio32(vi->vdev, mc_count); in virtnet_set_rx_mode()
2018 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC, in virtnet_set_rx_mode()
2028 struct virtnet_info *vi = netdev_priv(dev); in virtnet_vlan_rx_add_vid() local
2031 vi->ctrl->vid = cpu_to_virtio16(vi->vdev, vid); in virtnet_vlan_rx_add_vid()
2032 sg_init_one(&sg, &vi->ctrl->vid, sizeof(vi->ctrl->vid)); in virtnet_vlan_rx_add_vid()
2034 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN, in virtnet_vlan_rx_add_vid()
2043 struct virtnet_info *vi = netdev_priv(dev); in virtnet_vlan_rx_kill_vid() local
2046 vi->ctrl->vid = cpu_to_virtio16(vi->vdev, vid); in virtnet_vlan_rx_kill_vid()
2047 sg_init_one(&sg, &vi->ctrl->vid, sizeof(vi->ctrl->vid)); in virtnet_vlan_rx_kill_vid()
2049 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN, in virtnet_vlan_rx_kill_vid()
2055 static void virtnet_clean_affinity(struct virtnet_info *vi) in virtnet_clean_affinity() argument
2059 if (vi->affinity_hint_set) { in virtnet_clean_affinity()
2060 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_clean_affinity()
2061 virtqueue_set_affinity(vi->rq[i].vq, NULL); in virtnet_clean_affinity()
2062 virtqueue_set_affinity(vi->sq[i].vq, NULL); in virtnet_clean_affinity()
2065 vi->affinity_hint_set = false; in virtnet_clean_affinity()
2069 static void virtnet_set_affinity(struct virtnet_info *vi) in virtnet_set_affinity() argument
2079 virtnet_clean_affinity(vi); in virtnet_set_affinity()
2084 stride = max_t(int, num_cpu / vi->curr_queue_pairs, 1); in virtnet_set_affinity()
2085 stragglers = num_cpu >= vi->curr_queue_pairs ? in virtnet_set_affinity()
2086 num_cpu % vi->curr_queue_pairs : in virtnet_set_affinity()
2090 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_set_affinity()
2098 virtqueue_set_affinity(vi->rq[i].vq, mask); in virtnet_set_affinity()
2099 virtqueue_set_affinity(vi->sq[i].vq, mask); in virtnet_set_affinity()
2100 __netif_set_xps_queue(vi->dev, cpumask_bits(mask), i, XPS_CPUS); in virtnet_set_affinity()
2104 vi->affinity_hint_set = true; in virtnet_set_affinity()
2110 struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info, in virtnet_cpu_online() local
2112 virtnet_set_affinity(vi); in virtnet_cpu_online()
2118 struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info, in virtnet_cpu_dead() local
2120 virtnet_set_affinity(vi); in virtnet_cpu_dead()
2126 struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info, in virtnet_cpu_down_prep() local
2129 virtnet_clean_affinity(vi); in virtnet_cpu_down_prep()
2135 static int virtnet_cpu_notif_add(struct virtnet_info *vi) in virtnet_cpu_notif_add() argument
2139 ret = cpuhp_state_add_instance_nocalls(virtionet_online, &vi->node); in virtnet_cpu_notif_add()
2143 &vi->node_dead); in virtnet_cpu_notif_add()
2146 cpuhp_state_remove_instance_nocalls(virtionet_online, &vi->node); in virtnet_cpu_notif_add()
2150 static void virtnet_cpu_notif_remove(struct virtnet_info *vi) in virtnet_cpu_notif_remove() argument
2152 cpuhp_state_remove_instance_nocalls(virtionet_online, &vi->node); in virtnet_cpu_notif_remove()
2154 &vi->node_dead); in virtnet_cpu_notif_remove()
2160 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_ringparam() local
2162 ring->rx_max_pending = virtqueue_get_vring_size(vi->rq[0].vq); in virtnet_get_ringparam()
2163 ring->tx_max_pending = virtqueue_get_vring_size(vi->sq[0].vq); in virtnet_get_ringparam()
2172 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_drvinfo() local
2173 struct virtio_device *vdev = vi->vdev; in virtnet_get_drvinfo()
2185 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_channels() local
2195 if (queue_pairs > vi->max_queue_pairs || queue_pairs == 0) in virtnet_set_channels()
2202 if (vi->rq[0].xdp_prog) in virtnet_set_channels()
2206 err = _virtnet_set_queues(vi, queue_pairs); in virtnet_set_channels()
2211 virtnet_set_affinity(vi); in virtnet_set_channels()
2222 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_strings() local
2228 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_strings()
2234 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_strings()
2245 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_sset_count() local
2249 return vi->curr_queue_pairs * (VIRTNET_RQ_STATS_LEN + in virtnet_get_sset_count()
2259 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_ethtool_stats() local
2264 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_ethtool_stats()
2265 struct receive_queue *rq = &vi->rq[i]; in virtnet_get_ethtool_stats()
2278 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_ethtool_stats()
2279 struct send_queue *sq = &vi->sq[i]; in virtnet_get_ethtool_stats()
2296 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_channels() local
2298 channels->combined_count = vi->curr_queue_pairs; in virtnet_get_channels()
2299 channels->max_combined = vi->max_queue_pairs; in virtnet_get_channels()
2309 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_link_ksettings() local
2312 &vi->speed, &vi->duplex); in virtnet_set_link_ksettings()
2318 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_link_ksettings() local
2320 cmd->base.speed = vi->speed; in virtnet_get_link_ksettings()
2321 cmd->base.duplex = vi->duplex; in virtnet_get_link_ksettings()
2332 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_coalesce() local
2340 if (napi_weight ^ vi->sq[0].napi.weight) { in virtnet_set_coalesce()
2343 for (i = 0; i < vi->max_queue_pairs; i++) in virtnet_set_coalesce()
2344 vi->sq[i].napi.weight = napi_weight; in virtnet_set_coalesce()
2359 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_coalesce() local
2363 if (vi->sq[0].napi.weight) in virtnet_get_coalesce()
2371 struct virtnet_info *vi = netdev_priv(dev); in virtnet_init_settings() local
2373 vi->speed = SPEED_UNKNOWN; in virtnet_init_settings()
2374 vi->duplex = DUPLEX_UNKNOWN; in virtnet_init_settings()
2377 static void virtnet_update_settings(struct virtnet_info *vi) in virtnet_update_settings() argument
2382 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_SPEED_DUPLEX)) in virtnet_update_settings()
2385 virtio_cread_le(vi->vdev, struct virtio_net_config, speed, &speed); in virtnet_update_settings()
2388 vi->speed = speed; in virtnet_update_settings()
2390 virtio_cread_le(vi->vdev, struct virtio_net_config, duplex, &duplex); in virtnet_update_settings()
2393 vi->duplex = duplex; in virtnet_update_settings()
2415 struct virtnet_info *vi = vdev->priv; in virtnet_freeze_down() local
2419 flush_work(&vi->config_work); in virtnet_freeze_down()
2421 netif_tx_lock_bh(vi->dev); in virtnet_freeze_down()
2422 netif_device_detach(vi->dev); in virtnet_freeze_down()
2423 netif_tx_unlock_bh(vi->dev); in virtnet_freeze_down()
2424 cancel_delayed_work_sync(&vi->refill); in virtnet_freeze_down()
2426 if (netif_running(vi->dev)) { in virtnet_freeze_down()
2427 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_freeze_down()
2428 napi_disable(&vi->rq[i].napi); in virtnet_freeze_down()
2429 virtnet_napi_tx_disable(&vi->sq[i].napi); in virtnet_freeze_down()
2434 static int init_vqs(struct virtnet_info *vi);
2438 struct virtnet_info *vi = vdev->priv; in virtnet_restore_up() local
2441 err = init_vqs(vi); in virtnet_restore_up()
2447 if (netif_running(vi->dev)) { in virtnet_restore_up()
2448 for (i = 0; i < vi->curr_queue_pairs; i++) in virtnet_restore_up()
2449 if (!try_fill_recv(vi, &vi->rq[i], GFP_KERNEL)) in virtnet_restore_up()
2450 schedule_delayed_work(&vi->refill, 0); in virtnet_restore_up()
2452 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_restore_up()
2453 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_restore_up()
2454 virtnet_napi_tx_enable(vi, vi->sq[i].vq, in virtnet_restore_up()
2455 &vi->sq[i].napi); in virtnet_restore_up()
2459 netif_tx_lock_bh(vi->dev); in virtnet_restore_up()
2460 netif_device_attach(vi->dev); in virtnet_restore_up()
2461 netif_tx_unlock_bh(vi->dev); in virtnet_restore_up()
2465 static int virtnet_set_guest_offloads(struct virtnet_info *vi, u64 offloads) in virtnet_set_guest_offloads() argument
2468 vi->ctrl->offloads = cpu_to_virtio64(vi->vdev, offloads); in virtnet_set_guest_offloads()
2470 sg_init_one(&sg, &vi->ctrl->offloads, sizeof(vi->ctrl->offloads)); in virtnet_set_guest_offloads()
2472 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_GUEST_OFFLOADS, in virtnet_set_guest_offloads()
2474 dev_warn(&vi->dev->dev, "Fail to set guest offload.\n"); in virtnet_set_guest_offloads()
2481 static int virtnet_clear_guest_offloads(struct virtnet_info *vi) in virtnet_clear_guest_offloads() argument
2485 if (!vi->guest_offloads) in virtnet_clear_guest_offloads()
2488 return virtnet_set_guest_offloads(vi, offloads); in virtnet_clear_guest_offloads()
2491 static int virtnet_restore_guest_offloads(struct virtnet_info *vi) in virtnet_restore_guest_offloads() argument
2493 u64 offloads = vi->guest_offloads; in virtnet_restore_guest_offloads()
2495 if (!vi->guest_offloads) in virtnet_restore_guest_offloads()
2498 return virtnet_set_guest_offloads(vi, offloads); in virtnet_restore_guest_offloads()
2505 struct virtnet_info *vi = netdev_priv(dev); in virtnet_xdp_set() local
2510 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS) in virtnet_xdp_set()
2511 && (virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO4) || in virtnet_xdp_set()
2512 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO6) || in virtnet_xdp_set()
2513 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_ECN) || in virtnet_xdp_set()
2514 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_UFO) || in virtnet_xdp_set()
2515 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_CSUM))) { in virtnet_xdp_set()
2520 if (vi->mergeable_rx_bufs && !vi->any_header_sg) { in virtnet_xdp_set()
2531 curr_qp = vi->curr_queue_pairs - vi->xdp_queue_pairs; in virtnet_xdp_set()
2536 if (curr_qp + xdp_qp > vi->max_queue_pairs) { in virtnet_xdp_set()
2538 curr_qp + xdp_qp, vi->max_queue_pairs); in virtnet_xdp_set()
2542 old_prog = rtnl_dereference(vi->rq[0].xdp_prog); in virtnet_xdp_set()
2547 bpf_prog_add(prog, vi->max_queue_pairs - 1); in virtnet_xdp_set()
2551 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2552 napi_disable(&vi->rq[i].napi); in virtnet_xdp_set()
2553 virtnet_napi_tx_disable(&vi->sq[i].napi); in virtnet_xdp_set()
2558 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2559 rcu_assign_pointer(vi->rq[i].xdp_prog, prog); in virtnet_xdp_set()
2561 virtnet_restore_guest_offloads(vi); in virtnet_xdp_set()
2566 err = _virtnet_set_queues(vi, curr_qp + xdp_qp); in virtnet_xdp_set()
2570 vi->xdp_queue_pairs = xdp_qp; in virtnet_xdp_set()
2573 vi->xdp_enabled = true; in virtnet_xdp_set()
2574 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2575 rcu_assign_pointer(vi->rq[i].xdp_prog, prog); in virtnet_xdp_set()
2577 virtnet_clear_guest_offloads(vi); in virtnet_xdp_set()
2580 vi->xdp_enabled = false; in virtnet_xdp_set()
2583 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2587 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_xdp_set()
2588 virtnet_napi_tx_enable(vi, vi->sq[i].vq, in virtnet_xdp_set()
2589 &vi->sq[i].napi); in virtnet_xdp_set()
2597 virtnet_clear_guest_offloads(vi); in virtnet_xdp_set()
2598 for (i = 0; i < vi->max_queue_pairs; i++) in virtnet_xdp_set()
2599 rcu_assign_pointer(vi->rq[i].xdp_prog, old_prog); in virtnet_xdp_set()
2603 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2604 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_xdp_set()
2605 virtnet_napi_tx_enable(vi, vi->sq[i].vq, in virtnet_xdp_set()
2606 &vi->sq[i].napi); in virtnet_xdp_set()
2610 bpf_prog_sub(prog, vi->max_queue_pairs - 1); in virtnet_xdp_set()
2627 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_phys_port_name() local
2630 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) in virtnet_get_phys_port_name()
2643 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_features() local
2648 if (vi->xdp_enabled) in virtnet_set_features()
2652 offloads = vi->guest_offloads_capable; in virtnet_set_features()
2654 offloads = vi->guest_offloads_capable & in virtnet_set_features()
2657 err = virtnet_set_guest_offloads(vi, offloads); in virtnet_set_features()
2660 vi->guest_offloads = offloads; in virtnet_set_features()
2685 struct virtnet_info *vi = in virtnet_config_changed_work() local
2689 if (virtio_cread_feature(vi->vdev, VIRTIO_NET_F_STATUS, in virtnet_config_changed_work()
2694 netdev_notify_peers(vi->dev); in virtnet_config_changed_work()
2695 virtnet_ack_link_announce(vi); in virtnet_config_changed_work()
2701 if (vi->status == v) in virtnet_config_changed_work()
2704 vi->status = v; in virtnet_config_changed_work()
2706 if (vi->status & VIRTIO_NET_S_LINK_UP) { in virtnet_config_changed_work()
2707 virtnet_update_settings(vi); in virtnet_config_changed_work()
2708 netif_carrier_on(vi->dev); in virtnet_config_changed_work()
2709 netif_tx_wake_all_queues(vi->dev); in virtnet_config_changed_work()
2711 netif_carrier_off(vi->dev); in virtnet_config_changed_work()
2712 netif_tx_stop_all_queues(vi->dev); in virtnet_config_changed_work()
2718 struct virtnet_info *vi = vdev->priv; in virtnet_config_changed() local
2720 schedule_work(&vi->config_work); in virtnet_config_changed()
2723 static void virtnet_free_queues(struct virtnet_info *vi) in virtnet_free_queues() argument
2727 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_free_queues()
2728 __netif_napi_del(&vi->rq[i].napi); in virtnet_free_queues()
2729 __netif_napi_del(&vi->sq[i].napi); in virtnet_free_queues()
2737 kfree(vi->rq); in virtnet_free_queues()
2738 kfree(vi->sq); in virtnet_free_queues()
2739 kfree(vi->ctrl); in virtnet_free_queues()
2742 static void _free_receive_bufs(struct virtnet_info *vi) in _free_receive_bufs() argument
2747 for (i = 0; i < vi->max_queue_pairs; i++) { in _free_receive_bufs()
2748 while (vi->rq[i].pages) in _free_receive_bufs()
2749 __free_pages(get_a_page(&vi->rq[i], GFP_KERNEL), 0); in _free_receive_bufs()
2751 old_prog = rtnl_dereference(vi->rq[i].xdp_prog); in _free_receive_bufs()
2752 RCU_INIT_POINTER(vi->rq[i].xdp_prog, NULL); in _free_receive_bufs()
2758 static void free_receive_bufs(struct virtnet_info *vi) in free_receive_bufs() argument
2761 _free_receive_bufs(vi); in free_receive_bufs()
2765 static void free_receive_page_frags(struct virtnet_info *vi) in free_receive_page_frags() argument
2768 for (i = 0; i < vi->max_queue_pairs; i++) in free_receive_page_frags()
2769 if (vi->rq[i].alloc_frag.page) in free_receive_page_frags()
2770 put_page(vi->rq[i].alloc_frag.page); in free_receive_page_frags()
2773 static void free_unused_bufs(struct virtnet_info *vi) in free_unused_bufs() argument
2778 for (i = 0; i < vi->max_queue_pairs; i++) { in free_unused_bufs()
2779 struct virtqueue *vq = vi->sq[i].vq; in free_unused_bufs()
2788 for (i = 0; i < vi->max_queue_pairs; i++) { in free_unused_bufs()
2789 struct virtqueue *vq = vi->rq[i].vq; in free_unused_bufs()
2792 if (vi->mergeable_rx_bufs) { in free_unused_bufs()
2794 } else if (vi->big_packets) { in free_unused_bufs()
2795 give_pages(&vi->rq[i], buf); in free_unused_bufs()
2803 static void virtnet_del_vqs(struct virtnet_info *vi) in virtnet_del_vqs() argument
2805 struct virtio_device *vdev = vi->vdev; in virtnet_del_vqs()
2807 virtnet_clean_affinity(vi); in virtnet_del_vqs()
2811 virtnet_free_queues(vi); in virtnet_del_vqs()
2818 static unsigned int mergeable_min_buf_len(struct virtnet_info *vi, struct virtqueue *vq) in mergeable_min_buf_len() argument
2822 unsigned int packet_len = vi->big_packets ? IP_MAX_MTU : vi->dev->max_mtu; in mergeable_min_buf_len()
2830 static int virtnet_find_vqs(struct virtnet_info *vi) in virtnet_find_vqs() argument
2843 total_vqs = vi->max_queue_pairs * 2 + in virtnet_find_vqs()
2844 virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ); in virtnet_find_vqs()
2856 if (!vi->big_packets || vi->mergeable_rx_bufs) { in virtnet_find_vqs()
2865 if (vi->has_cvq) { in virtnet_find_vqs()
2871 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_find_vqs()
2874 sprintf(vi->rq[i].name, "input.%d", i); in virtnet_find_vqs()
2875 sprintf(vi->sq[i].name, "output.%d", i); in virtnet_find_vqs()
2876 names[rxq2vq(i)] = vi->rq[i].name; in virtnet_find_vqs()
2877 names[txq2vq(i)] = vi->sq[i].name; in virtnet_find_vqs()
2882 ret = virtio_find_vqs_ctx(vi->vdev, total_vqs, vqs, callbacks, in virtnet_find_vqs()
2887 if (vi->has_cvq) { in virtnet_find_vqs()
2888 vi->cvq = vqs[total_vqs - 1]; in virtnet_find_vqs()
2889 if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VLAN)) in virtnet_find_vqs()
2890 vi->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; in virtnet_find_vqs()
2893 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_find_vqs()
2894 vi->rq[i].vq = vqs[rxq2vq(i)]; in virtnet_find_vqs()
2895 vi->rq[i].min_buf_len = mergeable_min_buf_len(vi, vi->rq[i].vq); in virtnet_find_vqs()
2896 vi->sq[i].vq = vqs[txq2vq(i)]; in virtnet_find_vqs()
2914 static int virtnet_alloc_queues(struct virtnet_info *vi) in virtnet_alloc_queues() argument
2918 if (vi->has_cvq) { in virtnet_alloc_queues()
2919 vi->ctrl = kzalloc(sizeof(*vi->ctrl), GFP_KERNEL); in virtnet_alloc_queues()
2920 if (!vi->ctrl) in virtnet_alloc_queues()
2923 vi->ctrl = NULL; in virtnet_alloc_queues()
2925 vi->sq = kcalloc(vi->max_queue_pairs, sizeof(*vi->sq), GFP_KERNEL); in virtnet_alloc_queues()
2926 if (!vi->sq) in virtnet_alloc_queues()
2928 vi->rq = kcalloc(vi->max_queue_pairs, sizeof(*vi->rq), GFP_KERNEL); in virtnet_alloc_queues()
2929 if (!vi->rq) in virtnet_alloc_queues()
2932 INIT_DELAYED_WORK(&vi->refill, refill_work); in virtnet_alloc_queues()
2933 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_alloc_queues()
2934 vi->rq[i].pages = NULL; in virtnet_alloc_queues()
2935 netif_napi_add(vi->dev, &vi->rq[i].napi, virtnet_poll, in virtnet_alloc_queues()
2937 netif_tx_napi_add(vi->dev, &vi->sq[i].napi, virtnet_poll_tx, in virtnet_alloc_queues()
2940 sg_init_table(vi->rq[i].sg, ARRAY_SIZE(vi->rq[i].sg)); in virtnet_alloc_queues()
2941 ewma_pkt_len_init(&vi->rq[i].mrg_avg_pkt_len); in virtnet_alloc_queues()
2942 sg_init_table(vi->sq[i].sg, ARRAY_SIZE(vi->sq[i].sg)); in virtnet_alloc_queues()
2944 u64_stats_init(&vi->rq[i].stats.syncp); in virtnet_alloc_queues()
2945 u64_stats_init(&vi->sq[i].stats.syncp); in virtnet_alloc_queues()
2951 kfree(vi->sq); in virtnet_alloc_queues()
2953 kfree(vi->ctrl); in virtnet_alloc_queues()
2958 static int init_vqs(struct virtnet_info *vi) in init_vqs() argument
2963 ret = virtnet_alloc_queues(vi); in init_vqs()
2967 ret = virtnet_find_vqs(vi); in init_vqs()
2972 virtnet_set_affinity(vi); in init_vqs()
2978 virtnet_free_queues(vi); in init_vqs()
2987 struct virtnet_info *vi = netdev_priv(queue->dev); in mergeable_rx_buffer_size_show() local
2989 unsigned int headroom = virtnet_get_headroom(vi); in mergeable_rx_buffer_size_show()
2993 BUG_ON(queue_index >= vi->max_queue_pairs); in mergeable_rx_buffer_size_show()
2994 avg = &vi->rq[queue_index].mrg_avg_pkt_len; in mergeable_rx_buffer_size_show()
2996 get_mergeable_buf_len(&vi->rq[queue_index], avg, in mergeable_rx_buffer_size_show()
3077 struct virtnet_info *vi; in virtnet_probe() local
3154 vi = netdev_priv(dev); in virtnet_probe()
3155 vi->dev = dev; in virtnet_probe()
3156 vi->vdev = vdev; in virtnet_probe()
3157 vdev->priv = vi; in virtnet_probe()
3159 INIT_WORK(&vi->config_work, virtnet_config_changed_work); in virtnet_probe()
3166 vi->big_packets = true; in virtnet_probe()
3169 vi->mergeable_rx_bufs = true; in virtnet_probe()
3173 vi->hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf); in virtnet_probe()
3175 vi->hdr_len = sizeof(struct virtio_net_hdr); in virtnet_probe()
3179 vi->any_header_sg = true; in virtnet_probe()
3182 vi->has_cvq = true; in virtnet_probe()
3204 vi->big_packets = true; in virtnet_probe()
3207 if (vi->any_header_sg) in virtnet_probe()
3208 dev->needed_headroom = vi->hdr_len; in virtnet_probe()
3212 vi->curr_queue_pairs = max_queue_pairs; in virtnet_probe()
3214 vi->curr_queue_pairs = num_online_cpus(); in virtnet_probe()
3215 vi->max_queue_pairs = max_queue_pairs; in virtnet_probe()
3218 err = init_vqs(vi); in virtnet_probe()
3223 if (vi->mergeable_rx_bufs) in virtnet_probe()
3226 netif_set_real_num_tx_queues(dev, vi->curr_queue_pairs); in virtnet_probe()
3227 netif_set_real_num_rx_queues(dev, vi->curr_queue_pairs); in virtnet_probe()
3232 vi->failover = net_failover_create(vi->dev); in virtnet_probe()
3233 if (IS_ERR(vi->failover)) { in virtnet_probe()
3234 err = PTR_ERR(vi->failover); in virtnet_probe()
3247 err = virtnet_cpu_notif_add(vi); in virtnet_probe()
3253 virtnet_set_queues(vi, vi->curr_queue_pairs); in virtnet_probe()
3258 if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS)) { in virtnet_probe()
3259 schedule_work(&vi->config_work); in virtnet_probe()
3261 vi->status = VIRTIO_NET_S_LINK_UP; in virtnet_probe()
3262 virtnet_update_settings(vi); in virtnet_probe()
3267 if (virtio_has_feature(vi->vdev, guest_offloads[i])) in virtnet_probe()
3268 set_bit(guest_offloads[i], &vi->guest_offloads); in virtnet_probe()
3269 vi->guest_offloads_capable = vi->guest_offloads; in virtnet_probe()
3277 vi->vdev->config->reset(vdev); in virtnet_probe()
3281 net_failover_destroy(vi->failover); in virtnet_probe()
3283 cancel_delayed_work_sync(&vi->refill); in virtnet_probe()
3284 free_receive_page_frags(vi); in virtnet_probe()
3285 virtnet_del_vqs(vi); in virtnet_probe()
3291 static void remove_vq_common(struct virtnet_info *vi) in remove_vq_common() argument
3293 vi->vdev->config->reset(vi->vdev); in remove_vq_common()
3296 free_unused_bufs(vi); in remove_vq_common()
3298 free_receive_bufs(vi); in remove_vq_common()
3300 free_receive_page_frags(vi); in remove_vq_common()
3302 virtnet_del_vqs(vi); in remove_vq_common()
3307 struct virtnet_info *vi = vdev->priv; in virtnet_remove() local
3309 virtnet_cpu_notif_remove(vi); in virtnet_remove()
3312 flush_work(&vi->config_work); in virtnet_remove()
3314 unregister_netdev(vi->dev); in virtnet_remove()
3316 net_failover_destroy(vi->failover); in virtnet_remove()
3318 remove_vq_common(vi); in virtnet_remove()
3320 free_netdev(vi->dev); in virtnet_remove()
3325 struct virtnet_info *vi = vdev->priv; in virtnet_freeze() local
3327 virtnet_cpu_notif_remove(vi); in virtnet_freeze()
3329 remove_vq_common(vi); in virtnet_freeze()
3336 struct virtnet_info *vi = vdev->priv; in virtnet_restore() local
3342 virtnet_set_queues(vi, vi->curr_queue_pairs); in virtnet_restore()
3344 err = virtnet_cpu_notif_add(vi); in virtnet_restore()
3347 remove_vq_common(vi); in virtnet_restore()