search for: frags

...------------ 1 files changed, 19 insertions(+), 15 deletions(-) diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index d7c8a98..6e5d4c0 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -275,7 +275,7 @@ no_skb: break; } - skb_shinfo(skb)->frags[0].page = page; + __skb_fill_page_desc(skb, 0, page, 0, 0); skb_shinfo(skb)->nr_frags = 1; __skb_queue_tail(&np->rx_batch, skb); } @@ -309,8 +309,8 @@ no_skb: BUG_ON((signed short)ref < 0); np->grant_rx_ref[id] = ref; - pfn = page_to_pfn(skb_shinfo(skb)->frags[0...

https://bugs.freedesktop.org/show_bug.cgi?id=97192 Bug ID: 97192 Summary: SuperTuxkart graphic errors [NVE4 - GK104] Product: Mesa Version: unspecified Hardware: x86-64 (AMD64) OS: other Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau Assignee:

https://bugzilla.netfilter.org/show_bug.cgi?id=935 Summary: Frag: problem with frag-off Product: nftables Version: unspecified Platform: x86_64 OS/Version: Debian GNU/Linux Status: NEW Severity: normal Priority: P5 Component: nft AssignedTo: pablo at netfilter.org ReportedBy: anarey at

This function is in fact counting the ring slots required for responses. Separate the concepts of ring slots and skb frags make the code clearer, as now netfront and netback can have different MAX_SKB_FRAGS, slot and frag are not mapped 1:1 any more. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: David Vrabel <david.vrabel@citrix.com> --- drivers/net/xen-netfront.c | 18 +++++++++--------- 1...

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael D...

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael D...

...517 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -322,9 +322,11 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->dev->name); len = MERGE_BUFFER_LEN; } + page = virt_to_head_page(buf); if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) { struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC); if (unlikely(!nskb)) { + put_page(page); head_skb->dev->stats.rx_dropped++; return -ENOMEM; } @@ -341,7 +343,6 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)...

...517 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -322,9 +322,11 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->dev->name); len = MERGE_BUFFER_LEN; } + page = virt_to_head_page(buf); if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) { struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC); if (unlikely(!nskb)) { + put_page(page); head_skb->dev->stats.rx_dropped++; return -ENOMEM; } @@ -341,7 +343,6 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)...

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael D...

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael D...

...et: xx slots" and this results in some dropped packets in domU, I don''t see any warnings in dom0. I have added some extra info, but i don''t have enough knowledge if this could/should be prevented from happening ? [16798.629141] xennet: skb rides the rocket: 19 slots MAX_SKB_FRAGS: 17 div_roundup:1 xennet_count_skb_frag_slots:18 offset:106 skb_headlen:1622 skb->len:64294, skb->data_len:62672 skb->truesize:64976 nr_frags:4 page_size:4096 prot:0800 [16800.575182] xennet: skb rides the rocket: 19 slots MAX_SKB_FRAGS: 17 div_roundup:1 xennet_count_skb_frag_slots:18 offs...

https://bugzilla.netfilter.org/show_bug.cgi?id=934 Summary: frag: Invert a range in frag Product: nftables Version: unspecified Platform: x86_64 OS/Version: Debian GNU/Linux Status: NEW Severity: normal Priority: P5 Component: nft AssignedTo: pablo at netfilter.org ReportedBy: anarey at

The attached patch resolves a buffer reuse bug in the efi/tcp.c code. The bug can be triggered when multiple TCP connections are opened when using the EFI bootloader. Signed-off-by: Joshua Weage <joshua.weage at dell.com> --- --- master/core/fs/pxe/pxe.h 2017-07-22 14:45:46.561674329 -0500 +++ jw/core/fs/pxe/pxe.h 2017-07-23 19:44:46.466498950 -0500 @@ -144,6 +144,7 @@ struct

...r[_refi],iplane->ystride,_bv); } if(frag+1<frag_end&&!(frag+1)->coded){ - loop_filter_h(frag->buffer[_refi]+8,iplane->ystride,_bv); + loop_filter_h_c(frag->buffer[_refi]+8,iplane->ystride,_bv); } if(frag+fplane->nhfrags<frag_bot&&!(frag+fplane->nhfrags)->coded){ - loop_filter_v((frag+fplane->nhfrags)->buffer[_refi], + loop_filter_v_c((frag+fplane->nhfrags)->buffer[_refi], iplane->ystride,_bv); } } @@ -1031,7 +1041,7 @@ framei=_state-&...

Hi Lars, I have no experience to use tcpdump, here is the output from TCPdump for your reference. Any idea? Use my home PC to ping company PC 01:00:25.154706 ethertype IPv4, IP 192.168.1.2 > 10.0.0.2: ICMP echo request, id 1, seq 17, length 40 01:00:25.154706 IP 192.168.1.2 > 10.0.0.2: ICMP echo request, id 1, seq 17, length 40 01:00:25.154706 IP 192.168.1.2 > 10.0.0.2: ICMP echo

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael D...

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael D...

...net: migrate mergeable > rx buffers to page frag allocators) try to increase the payload/truesize for > MTU-sized traffic. But this will introduce the extra overhead for GSO packets > received because of the frag list. This commit tries to reduce this issue by > coalesce the possible rx frags when possible during rx. Test result shows the > about 15% improvement on full size GSO packet receiving (and even better than > commit 2613af0ed18a11d5c566a81f9a6510b73180660a). I don't know about the other users of skb_add_rx_frag, but should this coalesce-if-possible code be built int...

https://bugzilla.netfilter.org/show_bug.cgi?id=936 Summary: frag: "more-fragments" and "reserved" are not identified by nftables Product: nftables Version: unspecified Platform: x86_64 OS/Version: Debian GNU/Linux Status: NEW Severity: normal Priority: P5 Component:

...net: migrate mergeable > rx buffers to page frag allocators) try to increase the payload/truesize for > MTU-sized traffic. But this will introduce the extra overhead for GSO packets > received because of the frag list. This commit tries to reduce this issue by > coalesce the possible rx frags when possible during rx. Test result shows the > about 15% improvement on full size GSO packet receiving (and even better than > commit 2613af0ed18a11d5c566a81f9a6510b73180660a). I don't know about the other users of skb_add_rx_frag, but should this coalesce-if-possible code be built int...