Lines Matching refs:vi
328 static void enable_delayed_refill(struct virtnet_info *vi) in enable_delayed_refill() argument
330 spin_lock_bh(&vi->refill_lock); in enable_delayed_refill()
331 vi->refill_enabled = true; in enable_delayed_refill()
332 spin_unlock_bh(&vi->refill_lock); in enable_delayed_refill()
335 static void disable_delayed_refill(struct virtnet_info *vi) in disable_delayed_refill() argument
337 spin_lock_bh(&vi->refill_lock); in disable_delayed_refill()
338 vi->refill_enabled = false; in disable_delayed_refill()
339 spin_unlock_bh(&vi->refill_lock); in disable_delayed_refill()
367 struct virtnet_info *vi = vq->vdev->priv; in skb_xmit_done() local
368 struct napi_struct *napi = &vi->sq[vq2txq(vq)].napi; in skb_xmit_done()
377 netif_wake_subqueue(vi->dev, vq2txq(vq)); in skb_xmit_done()
398 static struct sk_buff *page_to_skb(struct virtnet_info *vi, in page_to_skb() argument
418 hdr_len = vi->hdr_len; in page_to_skb()
419 if (vi->mergeable_rx_bufs) in page_to_skb()
449 if (vi->mergeable_rx_bufs) { in page_to_skb()
484 static int __virtnet_xdp_xmit_one(struct virtnet_info *vi, in __virtnet_xdp_xmit_one() argument
491 if (unlikely(xdpf->headroom < vi->hdr_len)) in __virtnet_xdp_xmit_one()
495 xdpf->data -= vi->hdr_len; in __virtnet_xdp_xmit_one()
498 memset(hdr, 0, vi->hdr_len); in __virtnet_xdp_xmit_one()
499 xdpf->len += vi->hdr_len; in __virtnet_xdp_xmit_one()
519 #define virtnet_xdp_get_sq(vi) ({ \ argument
521 typeof(vi) v = (vi); \
537 #define virtnet_xdp_put_sq(vi, q) { \ argument
539 typeof(vi) v = (vi); \
551 struct virtnet_info *vi = netdev_priv(dev); in virtnet_xdp_xmit() local
552 struct receive_queue *rq = vi->rq; in virtnet_xdp_xmit()
571 sq = virtnet_xdp_get_sq(vi); in virtnet_xdp_xmit()
598 err = __virtnet_xdp_xmit_one(vi, sq, xdpf); in virtnet_xdp_xmit()
619 virtnet_xdp_put_sq(vi, sq); in virtnet_xdp_xmit()
623 static unsigned int virtnet_get_headroom(struct virtnet_info *vi) in virtnet_get_headroom() argument
625 return vi->xdp_enabled ? VIRTIO_XDP_HEADROOM : 0; in virtnet_get_headroom()
693 struct virtnet_info *vi, in receive_small() argument
704 unsigned int headroom = vi->hdr_len + header_offset; in receive_small()
713 len -= vi->hdr_len; in receive_small()
734 if (unlikely(xdp_headroom < virtnet_get_headroom(vi))) { in receive_small()
736 unsigned int tlen = len + vi->hdr_len; in receive_small()
739 xdp_headroom = virtnet_get_headroom(vi); in receive_small()
741 headroom = vi->hdr_len + header_offset; in receive_small()
755 xdp.data_hard_start = buf + VIRTNET_RX_PAD + vi->hdr_len; in receive_small()
779 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_small()
797 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_small()
813 memcpy(skb_vnet_hdr(skb), buf, vi->hdr_len); in receive_small()
833 struct virtnet_info *vi, in receive_big() argument
841 page_to_skb(vi, rq, page, 0, len, PAGE_SIZE, true, 0); in receive_big()
843 stats->bytes += len - vi->hdr_len; in receive_big()
856 struct virtnet_info *vi, in receive_mergeable() argument
865 u16 num_buf = virtio16_to_cpu(vi->vdev, hdr->num_buffers); in receive_mergeable()
877 stats->bytes += len - vi->hdr_len; in receive_mergeable()
913 headroom < virtnet_get_headroom(vi))) { in receive_mergeable()
932 xdp.data_hard_start = data - VIRTIO_XDP_HEADROOM + vi->hdr_len; in receive_mergeable()
933 xdp.data = data + vi->hdr_len; in receive_mergeable()
934 xdp.data_end = xdp.data + (len - vi->hdr_len); in receive_mergeable()
937 xdp.frame_sz = frame_sz - vi->hdr_len; in receive_mergeable()
952 vi->hdr_len - metasize; in receive_mergeable()
957 len = xdp.data_end - xdp.data + vi->hdr_len + metasize; in receive_mergeable()
962 head_skb = page_to_skb(vi, rq, xdp_page, offset, in receive_mergeable()
978 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_mergeable()
1005 trace_xdp_exception(vi->dev, xdp_prog, act); in receive_mergeable()
1015 head_skb = page_to_skb(vi, rq, page, offset, len, truesize, !xdp_prog, in receive_mergeable()
1028 virtio16_to_cpu(vi->vdev, in receive_mergeable()
1102 static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq, in receive_buf() argument
1107 struct net_device *dev = vi->dev; in receive_buf()
1111 if (unlikely(len < vi->hdr_len + ETH_HLEN)) { in receive_buf()
1114 if (vi->mergeable_rx_bufs) { in receive_buf()
1116 } else if (vi->big_packets) { in receive_buf()
1124 if (vi->mergeable_rx_bufs) in receive_buf()
1125 skb = receive_mergeable(dev, vi, rq, buf, ctx, len, xdp_xmit, in receive_buf()
1127 else if (vi->big_packets) in receive_buf()
1128 skb = receive_big(dev, vi, rq, buf, len, stats); in receive_buf()
1130 skb = receive_small(dev, vi, rq, buf, ctx, len, xdp_xmit, stats); in receive_buf()
1141 virtio_is_little_endian(vi->vdev))) { in receive_buf()
1166 static int add_recvbuf_small(struct virtnet_info *vi, struct receive_queue *rq, in add_recvbuf_small() argument
1171 unsigned int xdp_headroom = virtnet_get_headroom(vi); in add_recvbuf_small()
1173 int len = vi->hdr_len + VIRTNET_RX_PAD + GOOD_PACKET_LEN + xdp_headroom; in add_recvbuf_small()
1185 vi->hdr_len + GOOD_PACKET_LEN); in add_recvbuf_small()
1192 static int add_recvbuf_big(struct virtnet_info *vi, struct receive_queue *rq, in add_recvbuf_big() argument
1225 sg_set_buf(&rq->sg[0], p, vi->hdr_len); in add_recvbuf_big()
1257 static int add_recvbuf_mergeable(struct virtnet_info *vi, in add_recvbuf_mergeable() argument
1261 unsigned int headroom = virtnet_get_headroom(vi); in add_recvbuf_mergeable()
1307 static bool try_fill_recv(struct virtnet_info *vi, struct receive_queue *rq, in try_fill_recv() argument
1314 if (vi->mergeable_rx_bufs) in try_fill_recv()
1315 err = add_recvbuf_mergeable(vi, rq, gfp); in try_fill_recv()
1316 else if (vi->big_packets) in try_fill_recv()
1317 err = add_recvbuf_big(vi, rq, gfp); in try_fill_recv()
1319 err = add_recvbuf_small(vi, rq, gfp); in try_fill_recv()
1338 struct virtnet_info *vi = rvq->vdev->priv; in skb_recv_done() local
1339 struct receive_queue *rq = &vi->rq[vq2rxq(rvq)]; in skb_recv_done()
1357 static void virtnet_napi_tx_enable(struct virtnet_info *vi, in virtnet_napi_tx_enable() argument
1367 if (!vi->affinity_hint_set) { in virtnet_napi_tx_enable()
1383 struct virtnet_info *vi = in refill_work() local
1388 for (i = 0; i < vi->curr_queue_pairs; i++) { in refill_work()
1389 struct receive_queue *rq = &vi->rq[i]; in refill_work()
1392 still_empty = !try_fill_recv(vi, rq, GFP_KERNEL); in refill_work()
1399 schedule_delayed_work(&vi->refill, HZ/2); in refill_work()
1406 struct virtnet_info *vi = rq->vq->vdev->priv; in virtnet_receive() local
1412 if (!vi->big_packets || vi->mergeable_rx_bufs) { in virtnet_receive()
1417 receive_buf(vi, rq, buf, len, ctx, xdp_xmit, &stats); in virtnet_receive()
1423 receive_buf(vi, rq, buf, len, NULL, xdp_xmit, &stats); in virtnet_receive()
1429 if (!try_fill_recv(vi, rq, GFP_ATOMIC)) { in virtnet_receive()
1430 spin_lock(&vi->refill_lock); in virtnet_receive()
1431 if (vi->refill_enabled) in virtnet_receive()
1432 schedule_delayed_work(&vi->refill, 0); in virtnet_receive()
1433 spin_unlock(&vi->refill_lock); in virtnet_receive()
1486 static bool is_xdp_raw_buffer_queue(struct virtnet_info *vi, int q) in is_xdp_raw_buffer_queue() argument
1488 if (q < (vi->curr_queue_pairs - vi->xdp_queue_pairs)) in is_xdp_raw_buffer_queue()
1490 else if (q < vi->curr_queue_pairs) in is_xdp_raw_buffer_queue()
1498 struct virtnet_info *vi = rq->vq->vdev->priv; in virtnet_poll_cleantx() local
1500 struct send_queue *sq = &vi->sq[index]; in virtnet_poll_cleantx()
1501 struct netdev_queue *txq = netdev_get_tx_queue(vi->dev, index); in virtnet_poll_cleantx()
1503 if (!sq->napi.weight || is_xdp_raw_buffer_queue(vi, index)) in virtnet_poll_cleantx()
1519 struct virtnet_info *vi = rq->vq->vdev->priv; in virtnet_poll() local
1536 sq = virtnet_xdp_get_sq(vi); in virtnet_poll()
1542 virtnet_xdp_put_sq(vi, sq); in virtnet_poll()
1550 struct virtnet_info *vi = netdev_priv(dev); in virtnet_open() local
1553 enable_delayed_refill(vi); in virtnet_open()
1555 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_open()
1556 if (i < vi->curr_queue_pairs) in virtnet_open()
1558 if (!try_fill_recv(vi, &vi->rq[i], GFP_KERNEL)) in virtnet_open()
1559 schedule_delayed_work(&vi->refill, 0); in virtnet_open()
1561 err = xdp_rxq_info_reg(&vi->rq[i].xdp_rxq, dev, i); in virtnet_open()
1565 err = xdp_rxq_info_reg_mem_model(&vi->rq[i].xdp_rxq, in virtnet_open()
1568 xdp_rxq_info_unreg(&vi->rq[i].xdp_rxq); in virtnet_open()
1572 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_open()
1573 virtnet_napi_tx_enable(vi, vi->sq[i].vq, &vi->sq[i].napi); in virtnet_open()
1582 struct virtnet_info *vi = sq->vq->vdev->priv; in virtnet_poll_tx() local
1588 if (unlikely(is_xdp_raw_buffer_queue(vi, index))) { in virtnet_poll_tx()
1594 txq = netdev_get_tx_queue(vi->dev, index); in virtnet_poll_tx()
1629 struct virtnet_info *vi = sq->vq->vdev->priv; in xmit_skb() local
1631 unsigned hdr_len = vi->hdr_len; in xmit_skb()
1634 pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest); in xmit_skb()
1636 can_push = vi->any_header_sg && in xmit_skb()
1647 virtio_is_little_endian(vi->vdev), false, in xmit_skb()
1651 if (vi->mergeable_rx_bufs) in xmit_skb()
1674 struct virtnet_info *vi = netdev_priv(dev); in start_xmit() local
1676 struct send_queue *sq = &vi->sq[qnum]; in start_xmit()
1751 static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd, in virtnet_send_command() argument
1758 BUG_ON(!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ)); in virtnet_send_command()
1760 vi->ctrl->status = ~0; in virtnet_send_command()
1761 vi->ctrl->hdr.class = class; in virtnet_send_command()
1762 vi->ctrl->hdr.cmd = cmd; in virtnet_send_command()
1764 sg_init_one(&hdr, &vi->ctrl->hdr, sizeof(vi->ctrl->hdr)); in virtnet_send_command()
1771 sg_init_one(&stat, &vi->ctrl->status, sizeof(vi->ctrl->status)); in virtnet_send_command()
1775 virtqueue_add_sgs(vi->cvq, sgs, out_num, 1, vi, GFP_ATOMIC); in virtnet_send_command()
1777 if (unlikely(!virtqueue_kick(vi->cvq))) in virtnet_send_command()
1778 return vi->ctrl->status == VIRTIO_NET_OK; in virtnet_send_command()
1783 while (!virtqueue_get_buf(vi->cvq, &tmp) && in virtnet_send_command()
1784 !virtqueue_is_broken(vi->cvq)) in virtnet_send_command()
1787 return vi->ctrl->status == VIRTIO_NET_OK; in virtnet_send_command()
1792 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_mac_address() local
1793 struct virtio_device *vdev = vi->vdev; in virtnet_set_mac_address()
1798 if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) in virtnet_set_mac_address()
1811 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC, in virtnet_set_mac_address()
1840 struct virtnet_info *vi = netdev_priv(dev); in virtnet_stats() local
1844 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_stats()
1846 struct receive_queue *rq = &vi->rq[i]; in virtnet_stats()
1847 struct send_queue *sq = &vi->sq[i]; in virtnet_stats()
1875 static void virtnet_ack_link_announce(struct virtnet_info *vi) in virtnet_ack_link_announce() argument
1878 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_ANNOUNCE, in virtnet_ack_link_announce()
1880 dev_warn(&vi->dev->dev, "Failed to ack link announce.\n"); in virtnet_ack_link_announce()
1884 static int _virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) in _virtnet_set_queues() argument
1887 struct net_device *dev = vi->dev; in _virtnet_set_queues()
1889 if (!vi->has_cvq || !virtio_has_feature(vi->vdev, VIRTIO_NET_F_MQ)) in _virtnet_set_queues()
1892 vi->ctrl->mq.virtqueue_pairs = cpu_to_virtio16(vi->vdev, queue_pairs); in _virtnet_set_queues()
1893 sg_init_one(&sg, &vi->ctrl->mq, sizeof(vi->ctrl->mq)); in _virtnet_set_queues()
1895 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MQ, in _virtnet_set_queues()
1901 vi->curr_queue_pairs = queue_pairs; in _virtnet_set_queues()
1904 schedule_delayed_work(&vi->refill, 0); in _virtnet_set_queues()
1910 static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) in virtnet_set_queues() argument
1915 err = _virtnet_set_queues(vi, queue_pairs); in virtnet_set_queues()
1922 struct virtnet_info *vi = netdev_priv(dev); in virtnet_close() local
1926 disable_delayed_refill(vi); in virtnet_close()
1928 cancel_delayed_work_sync(&vi->refill); in virtnet_close()
1930 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_close()
1931 xdp_rxq_info_unreg(&vi->rq[i].xdp_rxq); in virtnet_close()
1932 napi_disable(&vi->rq[i].napi); in virtnet_close()
1933 virtnet_napi_tx_disable(&vi->sq[i].napi); in virtnet_close()
1941 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_rx_mode() local
1951 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_RX)) in virtnet_set_rx_mode()
1954 vi->ctrl->promisc = ((dev->flags & IFF_PROMISC) != 0); in virtnet_set_rx_mode()
1955 vi->ctrl->allmulti = ((dev->flags & IFF_ALLMULTI) != 0); in virtnet_set_rx_mode()
1957 sg_init_one(sg, &vi->ctrl->promisc, sizeof(vi->ctrl->promisc)); in virtnet_set_rx_mode()
1959 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX, in virtnet_set_rx_mode()
1962 vi->ctrl->promisc ? "en" : "dis"); in virtnet_set_rx_mode()
1964 sg_init_one(sg, &vi->ctrl->allmulti, sizeof(vi->ctrl->allmulti)); in virtnet_set_rx_mode()
1966 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX, in virtnet_set_rx_mode()
1969 vi->ctrl->allmulti ? "en" : "dis"); in virtnet_set_rx_mode()
1983 mac_data->entries = cpu_to_virtio32(vi->vdev, uc_count); in virtnet_set_rx_mode()
1994 mac_data->entries = cpu_to_virtio32(vi->vdev, mc_count); in virtnet_set_rx_mode()
2002 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC, in virtnet_set_rx_mode()
2012 struct virtnet_info *vi = netdev_priv(dev); in virtnet_vlan_rx_add_vid() local
2015 vi->ctrl->vid = cpu_to_virtio16(vi->vdev, vid); in virtnet_vlan_rx_add_vid()
2016 sg_init_one(&sg, &vi->ctrl->vid, sizeof(vi->ctrl->vid)); in virtnet_vlan_rx_add_vid()
2018 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN, in virtnet_vlan_rx_add_vid()
2027 struct virtnet_info *vi = netdev_priv(dev); in virtnet_vlan_rx_kill_vid() local
2030 vi->ctrl->vid = cpu_to_virtio16(vi->vdev, vid); in virtnet_vlan_rx_kill_vid()
2031 sg_init_one(&sg, &vi->ctrl->vid, sizeof(vi->ctrl->vid)); in virtnet_vlan_rx_kill_vid()
2033 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN, in virtnet_vlan_rx_kill_vid()
2039 static void virtnet_clean_affinity(struct virtnet_info *vi) in virtnet_clean_affinity() argument
2043 if (vi->affinity_hint_set) { in virtnet_clean_affinity()
2044 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_clean_affinity()
2045 virtqueue_set_affinity(vi->rq[i].vq, NULL); in virtnet_clean_affinity()
2046 virtqueue_set_affinity(vi->sq[i].vq, NULL); in virtnet_clean_affinity()
2049 vi->affinity_hint_set = false; in virtnet_clean_affinity()
2053 static void virtnet_set_affinity(struct virtnet_info *vi) in virtnet_set_affinity() argument
2063 virtnet_clean_affinity(vi); in virtnet_set_affinity()
2068 stride = max_t(int, num_cpu / vi->curr_queue_pairs, 1); in virtnet_set_affinity()
2069 stragglers = num_cpu >= vi->curr_queue_pairs ? in virtnet_set_affinity()
2070 num_cpu % vi->curr_queue_pairs : in virtnet_set_affinity()
2074 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_set_affinity()
2082 virtqueue_set_affinity(vi->rq[i].vq, mask); in virtnet_set_affinity()
2083 virtqueue_set_affinity(vi->sq[i].vq, mask); in virtnet_set_affinity()
2084 __netif_set_xps_queue(vi->dev, cpumask_bits(mask), i, false); in virtnet_set_affinity()
2088 vi->affinity_hint_set = true; in virtnet_set_affinity()
2094 struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info, in virtnet_cpu_online() local
2096 virtnet_set_affinity(vi); in virtnet_cpu_online()
2102 struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info, in virtnet_cpu_dead() local
2104 virtnet_set_affinity(vi); in virtnet_cpu_dead()
2110 struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info, in virtnet_cpu_down_prep() local
2113 virtnet_clean_affinity(vi); in virtnet_cpu_down_prep()
2119 static int virtnet_cpu_notif_add(struct virtnet_info *vi) in virtnet_cpu_notif_add() argument
2123 ret = cpuhp_state_add_instance_nocalls(virtionet_online, &vi->node); in virtnet_cpu_notif_add()
2127 &vi->node_dead); in virtnet_cpu_notif_add()
2130 cpuhp_state_remove_instance_nocalls(virtionet_online, &vi->node); in virtnet_cpu_notif_add()
2134 static void virtnet_cpu_notif_remove(struct virtnet_info *vi) in virtnet_cpu_notif_remove() argument
2136 cpuhp_state_remove_instance_nocalls(virtionet_online, &vi->node); in virtnet_cpu_notif_remove()
2138 &vi->node_dead); in virtnet_cpu_notif_remove()
2144 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_ringparam() local
2146 ring->rx_max_pending = virtqueue_get_vring_size(vi->rq[0].vq); in virtnet_get_ringparam()
2147 ring->tx_max_pending = virtqueue_get_vring_size(vi->sq[0].vq); in virtnet_get_ringparam()
2156 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_drvinfo() local
2157 struct virtio_device *vdev = vi->vdev; in virtnet_get_drvinfo()
2169 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_channels() local
2179 if (queue_pairs > vi->max_queue_pairs || queue_pairs == 0) in virtnet_set_channels()
2186 if (vi->rq[0].xdp_prog) in virtnet_set_channels()
2190 err = _virtnet_set_queues(vi, queue_pairs); in virtnet_set_channels()
2195 virtnet_set_affinity(vi); in virtnet_set_channels()
2206 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_strings() local
2212 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_strings()
2220 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_strings()
2233 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_sset_count() local
2237 return vi->curr_queue_pairs * (VIRTNET_RQ_STATS_LEN + in virtnet_get_sset_count()
2247 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_ethtool_stats() local
2252 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_ethtool_stats()
2253 struct receive_queue *rq = &vi->rq[i]; in virtnet_get_ethtool_stats()
2266 for (i = 0; i < vi->curr_queue_pairs; i++) { in virtnet_get_ethtool_stats()
2267 struct send_queue *sq = &vi->sq[i]; in virtnet_get_ethtool_stats()
2284 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_channels() local
2286 channels->combined_count = vi->curr_queue_pairs; in virtnet_get_channels()
2287 channels->max_combined = vi->max_queue_pairs; in virtnet_get_channels()
2297 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_link_ksettings() local
2300 &vi->speed, &vi->duplex); in virtnet_set_link_ksettings()
2306 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_link_ksettings() local
2308 cmd->base.speed = vi->speed; in virtnet_get_link_ksettings()
2309 cmd->base.duplex = vi->duplex; in virtnet_get_link_ksettings()
2318 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_coalesce() local
2326 if (napi_weight ^ vi->sq[0].napi.weight) { in virtnet_set_coalesce()
2329 for (i = 0; i < vi->max_queue_pairs; i++) in virtnet_set_coalesce()
2330 vi->sq[i].napi.weight = napi_weight; in virtnet_set_coalesce()
2343 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_coalesce() local
2347 if (vi->sq[0].napi.weight) in virtnet_get_coalesce()
2355 struct virtnet_info *vi = netdev_priv(dev); in virtnet_init_settings() local
2357 vi->speed = SPEED_UNKNOWN; in virtnet_init_settings()
2358 vi->duplex = DUPLEX_UNKNOWN; in virtnet_init_settings()
2361 static void virtnet_update_settings(struct virtnet_info *vi) in virtnet_update_settings() argument
2366 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_SPEED_DUPLEX)) in virtnet_update_settings()
2369 virtio_cread_le(vi->vdev, struct virtio_net_config, speed, &speed); in virtnet_update_settings()
2372 vi->speed = speed; in virtnet_update_settings()
2374 virtio_cread_le(vi->vdev, struct virtio_net_config, duplex, &duplex); in virtnet_update_settings()
2377 vi->duplex = duplex; in virtnet_update_settings()
2399 struct virtnet_info *vi = vdev->priv; in virtnet_freeze_down() local
2402 flush_work(&vi->config_work); in virtnet_freeze_down()
2404 netif_tx_lock_bh(vi->dev); in virtnet_freeze_down()
2405 netif_device_detach(vi->dev); in virtnet_freeze_down()
2406 netif_tx_unlock_bh(vi->dev); in virtnet_freeze_down()
2407 if (netif_running(vi->dev)) in virtnet_freeze_down()
2408 virtnet_close(vi->dev); in virtnet_freeze_down()
2411 static int init_vqs(struct virtnet_info *vi);
2415 struct virtnet_info *vi = vdev->priv; in virtnet_restore_up() local
2418 err = init_vqs(vi); in virtnet_restore_up()
2424 enable_delayed_refill(vi); in virtnet_restore_up()
2426 if (netif_running(vi->dev)) { in virtnet_restore_up()
2427 err = virtnet_open(vi->dev); in virtnet_restore_up()
2432 netif_tx_lock_bh(vi->dev); in virtnet_restore_up()
2433 netif_device_attach(vi->dev); in virtnet_restore_up()
2434 netif_tx_unlock_bh(vi->dev); in virtnet_restore_up()
2438 static int virtnet_set_guest_offloads(struct virtnet_info *vi, u64 offloads) in virtnet_set_guest_offloads() argument
2441 vi->ctrl->offloads = cpu_to_virtio64(vi->vdev, offloads); in virtnet_set_guest_offloads()
2443 sg_init_one(&sg, &vi->ctrl->offloads, sizeof(vi->ctrl->offloads)); in virtnet_set_guest_offloads()
2445 if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_GUEST_OFFLOADS, in virtnet_set_guest_offloads()
2447 dev_warn(&vi->dev->dev, "Fail to set guest offload.\n"); in virtnet_set_guest_offloads()
2454 static int virtnet_clear_guest_offloads(struct virtnet_info *vi) in virtnet_clear_guest_offloads() argument
2458 if (!vi->guest_offloads) in virtnet_clear_guest_offloads()
2461 return virtnet_set_guest_offloads(vi, offloads); in virtnet_clear_guest_offloads()
2464 static int virtnet_restore_guest_offloads(struct virtnet_info *vi) in virtnet_restore_guest_offloads() argument
2466 u64 offloads = vi->guest_offloads; in virtnet_restore_guest_offloads()
2468 if (!vi->guest_offloads) in virtnet_restore_guest_offloads()
2471 return virtnet_set_guest_offloads(vi, offloads); in virtnet_restore_guest_offloads()
2478 struct virtnet_info *vi = netdev_priv(dev); in virtnet_xdp_set() local
2483 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS) in virtnet_xdp_set()
2484 && (virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO4) || in virtnet_xdp_set()
2485 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO6) || in virtnet_xdp_set()
2486 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_ECN) || in virtnet_xdp_set()
2487 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_UFO) || in virtnet_xdp_set()
2488 virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_CSUM))) { in virtnet_xdp_set()
2493 if (vi->mergeable_rx_bufs && !vi->any_header_sg) { in virtnet_xdp_set()
2504 curr_qp = vi->curr_queue_pairs - vi->xdp_queue_pairs; in virtnet_xdp_set()
2509 if (curr_qp + xdp_qp > vi->max_queue_pairs) { in virtnet_xdp_set()
2511 curr_qp + xdp_qp, vi->max_queue_pairs); in virtnet_xdp_set()
2515 old_prog = rtnl_dereference(vi->rq[0].xdp_prog); in virtnet_xdp_set()
2520 bpf_prog_add(prog, vi->max_queue_pairs - 1); in virtnet_xdp_set()
2524 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2525 napi_disable(&vi->rq[i].napi); in virtnet_xdp_set()
2526 virtnet_napi_tx_disable(&vi->sq[i].napi); in virtnet_xdp_set()
2531 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2532 rcu_assign_pointer(vi->rq[i].xdp_prog, prog); in virtnet_xdp_set()
2534 virtnet_restore_guest_offloads(vi); in virtnet_xdp_set()
2539 err = _virtnet_set_queues(vi, curr_qp + xdp_qp); in virtnet_xdp_set()
2543 vi->xdp_queue_pairs = xdp_qp; in virtnet_xdp_set()
2546 vi->xdp_enabled = true; in virtnet_xdp_set()
2547 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2548 rcu_assign_pointer(vi->rq[i].xdp_prog, prog); in virtnet_xdp_set()
2550 virtnet_clear_guest_offloads(vi); in virtnet_xdp_set()
2553 vi->xdp_enabled = false; in virtnet_xdp_set()
2556 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2560 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_xdp_set()
2561 virtnet_napi_tx_enable(vi, vi->sq[i].vq, in virtnet_xdp_set()
2562 &vi->sq[i].napi); in virtnet_xdp_set()
2570 virtnet_clear_guest_offloads(vi); in virtnet_xdp_set()
2571 for (i = 0; i < vi->max_queue_pairs; i++) in virtnet_xdp_set()
2572 rcu_assign_pointer(vi->rq[i].xdp_prog, old_prog); in virtnet_xdp_set()
2576 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_xdp_set()
2577 virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi); in virtnet_xdp_set()
2578 virtnet_napi_tx_enable(vi, vi->sq[i].vq, in virtnet_xdp_set()
2579 &vi->sq[i].napi); in virtnet_xdp_set()
2583 bpf_prog_sub(prog, vi->max_queue_pairs - 1); in virtnet_xdp_set()
2600 struct virtnet_info *vi = netdev_priv(dev); in virtnet_get_phys_port_name() local
2603 if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STANDBY)) in virtnet_get_phys_port_name()
2616 struct virtnet_info *vi = netdev_priv(dev); in virtnet_set_features() local
2620 if (!vi->has_cvq) in virtnet_set_features()
2624 if (vi->xdp_enabled) in virtnet_set_features()
2628 offloads = vi->guest_offloads_capable; in virtnet_set_features()
2630 offloads = vi->guest_offloads_capable & in virtnet_set_features()
2633 err = virtnet_set_guest_offloads(vi, offloads); in virtnet_set_features()
2636 vi->guest_offloads = offloads; in virtnet_set_features()
2661 struct virtnet_info *vi = in virtnet_config_changed_work() local
2665 if (virtio_cread_feature(vi->vdev, VIRTIO_NET_F_STATUS, in virtnet_config_changed_work()
2670 netdev_notify_peers(vi->dev); in virtnet_config_changed_work()
2671 virtnet_ack_link_announce(vi); in virtnet_config_changed_work()
2677 if (vi->status == v) in virtnet_config_changed_work()
2680 vi->status = v; in virtnet_config_changed_work()
2682 if (vi->status & VIRTIO_NET_S_LINK_UP) { in virtnet_config_changed_work()
2683 virtnet_update_settings(vi); in virtnet_config_changed_work()
2684 netif_carrier_on(vi->dev); in virtnet_config_changed_work()
2685 netif_tx_wake_all_queues(vi->dev); in virtnet_config_changed_work()
2687 netif_carrier_off(vi->dev); in virtnet_config_changed_work()
2688 netif_tx_stop_all_queues(vi->dev); in virtnet_config_changed_work()
2694 struct virtnet_info *vi = vdev->priv; in virtnet_config_changed() local
2696 schedule_work(&vi->config_work); in virtnet_config_changed()
2699 static void virtnet_free_queues(struct virtnet_info *vi) in virtnet_free_queues() argument
2703 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_free_queues()
2704 __netif_napi_del(&vi->rq[i].napi); in virtnet_free_queues()
2705 __netif_napi_del(&vi->sq[i].napi); in virtnet_free_queues()
2713 kfree(vi->rq); in virtnet_free_queues()
2714 kfree(vi->sq); in virtnet_free_queues()
2715 kfree(vi->ctrl); in virtnet_free_queues()
2718 static void _free_receive_bufs(struct virtnet_info *vi) in _free_receive_bufs() argument
2723 for (i = 0; i < vi->max_queue_pairs; i++) { in _free_receive_bufs()
2724 while (vi->rq[i].pages) in _free_receive_bufs()
2725 __free_pages(get_a_page(&vi->rq[i], GFP_KERNEL), 0); in _free_receive_bufs()
2727 old_prog = rtnl_dereference(vi->rq[i].xdp_prog); in _free_receive_bufs()
2728 RCU_INIT_POINTER(vi->rq[i].xdp_prog, NULL); in _free_receive_bufs()
2734 static void free_receive_bufs(struct virtnet_info *vi) in free_receive_bufs() argument
2737 _free_receive_bufs(vi); in free_receive_bufs()
2741 static void free_receive_page_frags(struct virtnet_info *vi) in free_receive_page_frags() argument
2744 for (i = 0; i < vi->max_queue_pairs; i++) in free_receive_page_frags()
2745 if (vi->rq[i].alloc_frag.page) in free_receive_page_frags()
2746 put_page(vi->rq[i].alloc_frag.page); in free_receive_page_frags()
2749 static void free_unused_bufs(struct virtnet_info *vi) in free_unused_bufs() argument
2754 for (i = 0; i < vi->max_queue_pairs; i++) { in free_unused_bufs()
2755 struct virtqueue *vq = vi->sq[i].vq; in free_unused_bufs()
2764 for (i = 0; i < vi->max_queue_pairs; i++) { in free_unused_bufs()
2765 struct virtqueue *vq = vi->rq[i].vq; in free_unused_bufs()
2768 if (vi->mergeable_rx_bufs) { in free_unused_bufs()
2770 } else if (vi->big_packets) { in free_unused_bufs()
2771 give_pages(&vi->rq[i], buf); in free_unused_bufs()
2779 static void virtnet_del_vqs(struct virtnet_info *vi) in virtnet_del_vqs() argument
2781 struct virtio_device *vdev = vi->vdev; in virtnet_del_vqs()
2783 virtnet_clean_affinity(vi); in virtnet_del_vqs()
2787 virtnet_free_queues(vi); in virtnet_del_vqs()
2794 static unsigned int mergeable_min_buf_len(struct virtnet_info *vi, struct virtqueue *vq) in mergeable_min_buf_len() argument
2798 unsigned int packet_len = vi->big_packets ? IP_MAX_MTU : vi->dev->max_mtu; in mergeable_min_buf_len()
2806 static int virtnet_find_vqs(struct virtnet_info *vi) in virtnet_find_vqs() argument
2819 total_vqs = vi->max_queue_pairs * 2 + in virtnet_find_vqs()
2820 virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ); in virtnet_find_vqs()
2832 if (!vi->big_packets || vi->mergeable_rx_bufs) { in virtnet_find_vqs()
2841 if (vi->has_cvq) { in virtnet_find_vqs()
2847 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_find_vqs()
2850 sprintf(vi->rq[i].name, "input.%d", i); in virtnet_find_vqs()
2851 sprintf(vi->sq[i].name, "output.%d", i); in virtnet_find_vqs()
2852 names[rxq2vq(i)] = vi->rq[i].name; in virtnet_find_vqs()
2853 names[txq2vq(i)] = vi->sq[i].name; in virtnet_find_vqs()
2858 ret = vi->vdev->config->find_vqs(vi->vdev, total_vqs, vqs, callbacks, in virtnet_find_vqs()
2863 if (vi->has_cvq) { in virtnet_find_vqs()
2864 vi->cvq = vqs[total_vqs - 1]; in virtnet_find_vqs()
2865 if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VLAN)) in virtnet_find_vqs()
2866 vi->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; in virtnet_find_vqs()
2869 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_find_vqs()
2870 vi->rq[i].vq = vqs[rxq2vq(i)]; in virtnet_find_vqs()
2871 vi->rq[i].min_buf_len = mergeable_min_buf_len(vi, vi->rq[i].vq); in virtnet_find_vqs()
2872 vi->sq[i].vq = vqs[txq2vq(i)]; in virtnet_find_vqs()
2890 static int virtnet_alloc_queues(struct virtnet_info *vi) in virtnet_alloc_queues() argument
2894 vi->ctrl = kzalloc(sizeof(*vi->ctrl), GFP_KERNEL); in virtnet_alloc_queues()
2895 if (!vi->ctrl) in virtnet_alloc_queues()
2897 vi->sq = kcalloc(vi->max_queue_pairs, sizeof(*vi->sq), GFP_KERNEL); in virtnet_alloc_queues()
2898 if (!vi->sq) in virtnet_alloc_queues()
2900 vi->rq = kcalloc(vi->max_queue_pairs, sizeof(*vi->rq), GFP_KERNEL); in virtnet_alloc_queues()
2901 if (!vi->rq) in virtnet_alloc_queues()
2904 INIT_DELAYED_WORK(&vi->refill, refill_work); in virtnet_alloc_queues()
2905 for (i = 0; i < vi->max_queue_pairs; i++) { in virtnet_alloc_queues()
2906 vi->rq[i].pages = NULL; in virtnet_alloc_queues()
2907 netif_napi_add(vi->dev, &vi->rq[i].napi, virtnet_poll, in virtnet_alloc_queues()
2909 netif_tx_napi_add(vi->dev, &vi->sq[i].napi, virtnet_poll_tx, in virtnet_alloc_queues()
2912 sg_init_table(vi->rq[i].sg, ARRAY_SIZE(vi->rq[i].sg)); in virtnet_alloc_queues()
2913 ewma_pkt_len_init(&vi->rq[i].mrg_avg_pkt_len); in virtnet_alloc_queues()
2914 sg_init_table(vi->sq[i].sg, ARRAY_SIZE(vi->sq[i].sg)); in virtnet_alloc_queues()
2916 u64_stats_init(&vi->rq[i].stats.syncp); in virtnet_alloc_queues()
2917 u64_stats_init(&vi->sq[i].stats.syncp); in virtnet_alloc_queues()
2923 kfree(vi->sq); in virtnet_alloc_queues()
2925 kfree(vi->ctrl); in virtnet_alloc_queues()
2930 static int init_vqs(struct virtnet_info *vi) in init_vqs() argument
2935 ret = virtnet_alloc_queues(vi); in init_vqs()
2939 ret = virtnet_find_vqs(vi); in init_vqs()
2944 virtnet_set_affinity(vi); in init_vqs()
2950 virtnet_free_queues(vi); in init_vqs()
2959 struct virtnet_info *vi = netdev_priv(queue->dev); in mergeable_rx_buffer_size_show() local
2961 unsigned int headroom = virtnet_get_headroom(vi); in mergeable_rx_buffer_size_show()
2965 BUG_ON(queue_index >= vi->max_queue_pairs); in mergeable_rx_buffer_size_show()
2966 avg = &vi->rq[queue_index].mrg_avg_pkt_len; in mergeable_rx_buffer_size_show()
2968 get_mergeable_buf_len(&vi->rq[queue_index], avg, in mergeable_rx_buffer_size_show()
3049 struct virtnet_info *vi; in virtnet_probe() local
3125 vi = netdev_priv(dev); in virtnet_probe()
3126 vi->dev = dev; in virtnet_probe()
3127 vi->vdev = vdev; in virtnet_probe()
3128 vdev->priv = vi; in virtnet_probe()
3130 INIT_WORK(&vi->config_work, virtnet_config_changed_work); in virtnet_probe()
3131 spin_lock_init(&vi->refill_lock); in virtnet_probe()
3138 vi->big_packets = true; in virtnet_probe()
3141 vi->mergeable_rx_bufs = true; in virtnet_probe()
3145 vi->hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf); in virtnet_probe()
3147 vi->hdr_len = sizeof(struct virtio_net_hdr); in virtnet_probe()
3151 vi->any_header_sg = true; in virtnet_probe()
3154 vi->has_cvq = true; in virtnet_probe()
3176 vi->big_packets = true; in virtnet_probe()
3179 if (vi->any_header_sg) in virtnet_probe()
3180 dev->needed_headroom = vi->hdr_len; in virtnet_probe()
3184 vi->curr_queue_pairs = max_queue_pairs; in virtnet_probe()
3186 vi->curr_queue_pairs = num_online_cpus(); in virtnet_probe()
3187 vi->max_queue_pairs = max_queue_pairs; in virtnet_probe()
3190 err = init_vqs(vi); in virtnet_probe()
3195 if (vi->mergeable_rx_bufs) in virtnet_probe()
3198 netif_set_real_num_tx_queues(dev, vi->curr_queue_pairs); in virtnet_probe()
3199 netif_set_real_num_rx_queues(dev, vi->curr_queue_pairs); in virtnet_probe()
3204 vi->failover = net_failover_create(vi->dev); in virtnet_probe()
3205 if (IS_ERR(vi->failover)) { in virtnet_probe()
3206 err = PTR_ERR(vi->failover); in virtnet_probe()
3225 err = virtnet_cpu_notif_add(vi); in virtnet_probe()
3231 virtnet_set_queues(vi, vi->curr_queue_pairs); in virtnet_probe()
3236 if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS)) { in virtnet_probe()
3237 schedule_work(&vi->config_work); in virtnet_probe()
3239 vi->status = VIRTIO_NET_S_LINK_UP; in virtnet_probe()
3240 virtnet_update_settings(vi); in virtnet_probe()
3245 if (virtio_has_feature(vi->vdev, guest_offloads[i])) in virtnet_probe()
3246 set_bit(guest_offloads[i], &vi->guest_offloads); in virtnet_probe()
3247 vi->guest_offloads_capable = vi->guest_offloads; in virtnet_probe()
3255 vi->vdev->config->reset(vdev); in virtnet_probe()
3259 net_failover_destroy(vi->failover); in virtnet_probe()
3261 cancel_delayed_work_sync(&vi->refill); in virtnet_probe()
3262 free_receive_page_frags(vi); in virtnet_probe()
3263 virtnet_del_vqs(vi); in virtnet_probe()
3269 static void remove_vq_common(struct virtnet_info *vi) in remove_vq_common() argument
3271 vi->vdev->config->reset(vi->vdev); in remove_vq_common()
3274 free_unused_bufs(vi); in remove_vq_common()
3276 free_receive_bufs(vi); in remove_vq_common()
3278 free_receive_page_frags(vi); in remove_vq_common()
3280 virtnet_del_vqs(vi); in remove_vq_common()
3285 struct virtnet_info *vi = vdev->priv; in virtnet_remove() local
3287 virtnet_cpu_notif_remove(vi); in virtnet_remove()
3290 flush_work(&vi->config_work); in virtnet_remove()
3292 unregister_netdev(vi->dev); in virtnet_remove()
3294 net_failover_destroy(vi->failover); in virtnet_remove()
3296 remove_vq_common(vi); in virtnet_remove()
3298 free_netdev(vi->dev); in virtnet_remove()
3303 struct virtnet_info *vi = vdev->priv; in virtnet_freeze() local
3305 virtnet_cpu_notif_remove(vi); in virtnet_freeze()
3307 remove_vq_common(vi); in virtnet_freeze()
3314 struct virtnet_info *vi = vdev->priv; in virtnet_restore() local
3320 virtnet_set_queues(vi, vi->curr_queue_pairs); in virtnet_restore()
3322 err = virtnet_cpu_notif_add(vi); in virtnet_restore()
3325 remove_vq_common(vi); in virtnet_restore()