search for: __skb_dequeue

...vice *dev) { struct virtnet_info *vi = netdev_priv(dev); - struct sk_buff *skb; napi_disable(&vi->napi); - /* networking core has neutered skb_xmit_done/skb_recv_done, so don't - * worry about races vs. get(). */ - vi->rvq->vq_ops->shutdown(vi->rvq); - while ((skb = __skb_dequeue(&vi->recv)) != NULL) { - kfree_skb(skb); - vi->num--; - } - vi->svq->vq_ops->shutdown(vi->svq); - while ((skb = __skb_dequeue(&vi->send)) != NULL) - kfree_skb(skb); - - BUG_ON(vi->num != 0); return 0; } @@ -403,10 +384,22 @@ static int virtnet_probe(struct vi...

...vice *dev) { struct virtnet_info *vi = netdev_priv(dev); - struct sk_buff *skb; napi_disable(&vi->napi); - /* networking core has neutered skb_xmit_done/skb_recv_done, so don't - * worry about races vs. get(). */ - vi->rvq->vq_ops->shutdown(vi->rvq); - while ((skb = __skb_dequeue(&vi->recv)) != NULL) { - kfree_skb(skb); - vi->num--; - } - vi->svq->vq_ops->shutdown(vi->svq); - while ((skb = __skb_dequeue(&vi->send)) != NULL) - kfree_skb(skb); - - BUG_ON(vi->num != 0); return 0; } @@ -403,10 +384,22 @@ static int virtnet_probe(struct vi...

...a *)sch->data; + struct sk_buff *skb = NULL; + long howmuch; + + /* time to delay a packet? */ + if ((q->gap > 0) && (q->counter >= q->gap)) { + struct sk_buff *skb2; + + DPRINTK("dequeue: move head packet from primary q to tail of ooo queue\n"); + + skb2 = __skb_dequeue(&sch->q); /* auto dec qlen */ + if (!skb2) { + DPRINTK("dequeue called with queue empty!\n"); + return NULL; + } + /* put back qlen */ + sch->q.qlen++; + + __skb_queue_tail(&q->qooo, skb2); /* auto inc qlen */ + + /* reset counter */ + q->counter = 0; + +...

From: Mark McLoughlin <markmc at redhat.com> hdr->csum_start is the offset from the start of the ethernet header to the transport layer checksum field. skb->csum_start is the offset from skb->head. skb_partial_csum_set() assumes that skb->data points to the ethernet header - i.e. it computes skb->csum_start by adding the headroom to hdr->csum_start. Since

..., at first it will find the VQ(q) according to the lower four bits of the skb->tc_index, then some parameters of the q is modified, such as q->packetsin and q->bytesin. At last the packet was put into the physical Queue using __skb_queue_tail(). When dequeue the packet, only the function __skb_dequeue() is called, and the VQ parameters are modified. Then the packets from all VQS will enter and store in the physical queue (sch->q), and be dequeued from there. HOW does the Gred schedule packets of differnet priorities? Thanks, _______________________________________________ LARTC mailing l...

...ueue_len(queue); + __skb_queue_tail(queue, skb); + if (!more || qlen == rx_batched) { + __skb_queue_head_init(&process_queue); + skb_queue_splice_tail_init(queue, &process_queue); + rcv = true; + } + spin_unlock(&queue->lock); + + if (rcv) { + local_bh_disable(); + while ((skb = __skb_dequeue(&process_queue))) + netif_receive_skb(skb); + local_bh_enable(); + } +} + /* Get packet from user space buffer */ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, void *msg_control, struct iov_iter *from, - int noblock) + int noblock, bool mor...

...__skb_queue_head(&vvs->rx_queue, skb); @@ -437,17 +434,17 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, while (!msg_ready) { struct virtio_vsock_hdr *hdr; + size_t pkt_len; skb = __skb_dequeue(&vvs->rx_queue); if (!skb) break; hdr = virtio_vsock_hdr(skb); + pkt_len = (size_t)le32_to_cpu(hdr->len); if (dequeued_len >= 0) { - size_t pkt_len;...

...goto drop; + __skb_queue_tail(queue, skb); + if (!more || qlen + 1 > rx_batched) { + __skb_queue_head_init(&process_queue); + skb_queue_splice_tail_init(queue, &process_queue); + rcv = true; + } + spin_unlock(&queue->lock); + + if (rcv) { + local_bh_disable(); + while ((skb = __skb_dequeue(&process_queue))) + netif_receive_skb(skb); + local_bh_enable(); + } + + return 0; +drop: + spin_unlock(&queue->lock); + kfree_skb(skb); + return -EFAULT; +} + /* Get packet from user space buffer */ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,...

...-762,23 +762,22 @@ static RING_IDX xennet_fill_frags(struct netfront_info *np, struct skb_shared_info *shinfo = skb_shinfo(skb); int nr_frags = shinfo->nr_frags; RING_IDX cons = np->rx.rsp_cons; - skb_frag_t *frag = shinfo->frags + nr_frags; struct sk_buff *nskb; while ((nskb = __skb_dequeue(list))) { struct xen_netif_rx_response *rx = RING_GET_RESPONSE(&np->rx, ++cons); + skb_frag_t *nfrag = &skb_shinfo(nskb)->frags[0]; - frag->page = skb_shinfo(nskb)->frags[0].page; - frag->page_offset = rx->offset; - frag->size = rx->status; + __skb_fill...

...rx_batched) { + __skb_queue_head_init(&process_queue); + skb_queue_splice_tail_init(queue, &process_queue); + rcv = true; + } else { + __skb_queue_tail(queue, skb); + } + spin_unlock(&queue->lock); + + if (rcv) { + struct sk_buff *nskb; + + local_bh_disable(); + while ((nskb = __skb_dequeue(&process_queue))) + netif_receive_skb(nskb); + netif_receive_skb(skb); + local_bh_enable(); + } +} + /* Get packet from user space buffer */ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, void *msg_control, struct iov_iter *from, - int noblock) +...

...= rx_batched) { + __skb_queue_head_init(&process_queue); + skb_queue_splice_tail_init(queue, &process_queue); + rcv = true; + } else { + __skb_queue_tail(queue, skb); + } + spin_unlock(&queue->lock); + + if (rcv) { + struct sk_buff *nskb; + local_bh_disable(); + while ((nskb = __skb_dequeue(&process_queue))) + netif_receive_skb(nskb); + netif_receive_skb(skb); + local_bh_enable(); + } +} + /* Get packet from user space buffer */ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, void *msg_control, struct iov_iter *from, - int noblock) +...

hello, this is my new qdisc patch, when i recompile the kernel with this patch i dn''nt succeed please look at it and if there are any mistakes plesease send me a mail thanks in advance ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! Yahoo! Mail : http://fr.mail.yahoo.com

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

On Thursday 01 May 2008 00:31:46 Mark McLoughlin wrote: > virtio_net currently only frees old transmit skbs just > before queueing new ones. If the queue is full, it then > enables interrupts and waits for notification that more > work has been performed. Hi Mark, This patch is fine, but it's better to do it from skb_xmit_done(). Of course, this is usually called from an

On Thursday 01 May 2008 00:31:46 Mark McLoughlin wrote: > virtio_net currently only frees old transmit skbs just > before queueing new ones. If the queue is full, it then > enables interrupts and waits for notification that more > work has been performed. Hi Mark, This patch is fine, but it's better to do it from skb_xmit_done(). Of course, this is usually called from an

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

Hi: This series tries to implement tx batching support for vhost. This was done by using MSG_MORE as a hint for under layer socket. The backend (e.g tap) can then batch the packets temporarily in a list and submit it all once the number of bacthed exceeds a limitation. Tests shows obvious improvement on guest pktgen over over mlx4(noqueue) on host: Mpps -+%

...failed\n"); @@ -948,9 +900,6 @@ static void virtnet_remove(struct virtio /* Stop all the virtqueues. */ vdev->config->reset(vdev); - if (!vi->free_in_tasklet) - del_timer_sync(&vi->xmit_free_timer); - /* Free our skbs in send and recv queues, if any. */ while ((skb = __skb_dequeue(&vi->recv)) != NULL) { kfree_skb(skb); @@ -983,7 +932,6 @@ static unsigned int features[] = { VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */ VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ, VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN, - VIRTIO_F_...

...failed\n"); @@ -948,9 +900,6 @@ static void virtnet_remove(struct virtio /* Stop all the virtqueues. */ vdev->config->reset(vdev); - if (!vi->free_in_tasklet) - del_timer_sync(&vi->xmit_free_timer); - /* Free our skbs in send and recv queues, if any. */ while ((skb = __skb_dequeue(&vi->recv)) != NULL) { kfree_skb(skb); @@ -983,7 +932,6 @@ static unsigned int features[] = { VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */ VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ, VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN, - VIRTIO_F_...