search for: skb_can_coalesc

Displaying 20 results from an estimated 59 matches for "skb_can_coalesc".

Did you mean: skb_can_coalesce
[PATCH net-next 1/4] virtio-net: mergeable buffer size should include virtio-net header
2013 Nov 12
12
[PATCH net-next 1/4] virtio-net: mergeable buffer size should include virtio-net header
...ct sk_buff *head_skb) if (curr_skb != head_skb) { head_skb->data_len += len; head_skb->len += len; - head_skb->truesize += MAX_PACKET_LEN; + head_skb->truesize += MERGE_BUFFER_LEN; } page = virt_to_head_page(buf); offset = buf - (char *)page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, - len, MAX_PACKET_LEN); + len, MERGE_BUFFER_LEN); } else { skb_add_rx_frag(curr_skb, num_skb_frags, page, - offset, len, - MAX_PACKET_LEN); + off...
[PATCH net-next 1/4] virtio-net: mergeable buffer size should include virtio-net header
2013 Nov 12
12
[PATCH net-next 1/4] virtio-net: mergeable buffer size should include virtio-net header
...ct sk_buff *head_skb) if (curr_skb != head_skb) { head_skb->data_len += len; head_skb->len += len; - head_skb->truesize += MAX_PACKET_LEN; + head_skb->truesize += MERGE_BUFFER_LEN; } page = virt_to_head_page(buf); offset = buf - (char *)page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, - len, MAX_PACKET_LEN); + len, MERGE_BUFFER_LEN); } else { skb_add_rx_frag(curr_skb, num_skb_frags, page, - offset, len, - MAX_PACKET_LEN); + off...
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
2013 Nov 27
4
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
...,8 +353,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->len += len; head_skb->truesize += MERGE_BUFFER_LEN; } - page = virt_to_head_page(buf); - offset = buf - (char *)page_address(page); + offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, @@ -351,9 +362,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) skb_add_rx_frag(curr_skb, num_skb_frags, page, offset, len, MERGE_BUFF...
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
2013 Nov 27
4
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
...,8 +353,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->len += len; head_skb->truesize += MERGE_BUFFER_LEN; } - page = virt_to_head_page(buf); - offset = buf - (char *)page_address(page); + offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, @@ -351,9 +362,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) skb_add_rx_frag(curr_skb, num_skb_frags, page, offset, len, MERGE_BUFF...
[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx
2013 Oct 31
0
[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx
...t receive_queue *rq, struct sk_buff *head_skb) head_skb->truesize += MAX_PACKET_LEN; } page = virt_to_head_page(buf); - skb_add_rx_frag(curr_skb, num_skb_frags, page, - buf - (char *)page_address(page), len, - MAX_PACKET_LEN); + offset = buf - (char *)page_address(page); + if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { + skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, + offset, len, MAX_PACKET_LEN); + } else { + skb_add_rx_frag(curr_skb, num_skb_frags, page, + offset, len, + MAX_PACKET_LEN); + } --rq->num; } return 0; -- 1.8.1.2
[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx
2013 Nov 01
1
[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx
Jason Wang <jasowang at redhat.com> writes: > Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_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
[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx
2013 Nov 01
1
[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx
Jason Wang <jasowang at redhat.com> writes: > Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_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
[PATCH net-next V2 2/2] virtio-net: coalesce rx frags when possible during rx
2013 Oct 31
0
[PATCH net-next V2 2/2] virtio-net: coalesce rx frags when possible during rx
...t receive_queue *rq, struct sk_buff *head_skb) head_skb->truesize += MAX_PACKET_LEN; } page = virt_to_head_page(buf); - skb_add_rx_frag(curr_skb, num_skb_frags, page, - buf - (char *)page_address(page), len, - MAX_PACKET_LEN); + offset = buf - (char *)page_address(page); + if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { + skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, + len, MAX_PACKET_LEN); + } else { + skb_add_rx_frag(curr_skb, num_skb_frags, page, + offset, len, + MAX_PACKET_LEN); + } --rq->num; } return 0; -- 1.8.1.2
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
2013 Dec 17
15
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs unless GFP_WAIT is used. Change skb_page_frag_refill to attempt higher-order page allocations whether or not GFP_WAIT is used. If memory cannot be allocated, the allocator will fall back to successively smaller page allocs (down to order-0 page allocs). This change brings skb_page_frag_refill in line with the existing page allocation
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
2013 Dec 17
15
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs unless GFP_WAIT is used. Change skb_page_frag_refill to attempt higher-order page allocations whether or not GFP_WAIT is used. If memory cannot be allocated, the allocator will fall back to successively smaller page allocs (down to order-0 page allocs). This change brings skb_page_frag_refill in line with the existing page allocation
[PATCH net-next V3 2/2] virtio-net: coalesce rx frags when possible during rx
2013 Nov 01
0
[PATCH net-next V3 2/2] virtio-net: coalesce rx frags when possible during rx
...t receive_queue *rq, struct sk_buff *head_skb) head_skb->truesize += MAX_PACKET_LEN; } page = virt_to_head_page(buf); - skb_add_rx_frag(curr_skb, num_skb_frags, page, - buf - (char *)page_address(page), len, - MAX_PACKET_LEN); + offset = buf - (char *)page_address(page); + if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { + put_page(page); + skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, + len, MAX_PACKET_LEN); + } else { + skb_add_rx_frag(curr_skb, num_skb_frags, page, + offset, len, + MAX_PACKET_LEN); + } --rq->num; } return 0; -- 1....
[PATCH v2 1/2] virtio_net: fix error handling for mergeable buffers
2013 Nov 28
4
[PATCH v2 1/2] virtio_net: fix error handling for mergeable buffers
...,8 +353,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->len += len; head_skb->truesize += MERGE_BUFFER_LEN; } - page = virt_to_head_page(buf); - offset = buf - (char *)page_address(page); + offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, @@ -351,9 +362,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) skb_add_rx_frag(curr_skb, num_skb_frags, page, offset, len, MERGE_BUFF...
[PATCH v2 1/2] virtio_net: fix error handling for mergeable buffers
2013 Nov 28
4
[PATCH v2 1/2] virtio_net: fix error handling for mergeable buffers
...,8 +353,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->len += len; head_skb->truesize += MERGE_BUFFER_LEN; } - page = virt_to_head_page(buf); - offset = buf - (char *)page_address(page); + offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, @@ -351,9 +362,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) skb_add_rx_frag(curr_skb, num_skb_frags, page, offset, len, MERGE_BUFF...
[PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb
2013 Nov 20
7
[PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb
When mergeable buffer were used, we only put the first page buf leave the rest of buffers in the virt queue. This will cause the driver could not get the correct head buffer any more. Fix this by dropping the rest of buffers for this packet. The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399 (virtio_net: Defer skb allocation in receive path). Cc: Rusty Russell <rusty at
[PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb
2013 Nov 20
7
[PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb
When mergeable buffer were used, we only put the first page buf leave the rest of buffers in the virt queue. This will cause the driver could not get the correct head buffer any more. Fix this by dropping the rest of buffers for this packet. The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399 (virtio_net: Defer skb allocation in receive path). Cc: Rusty Russell <rusty at
[PATCH net-next 1/2] net: introduce skb_coalesce_rx_frag()
2013 Oct 31
6
[PATCH net-next 1/2] net: introduce skb_coalesce_rx_frag()
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 Dalton <mwdalton at google.com> Cc: Eric Dumazet
[PATCH net-next 1/2] net: introduce skb_coalesce_rx_frag()
2013 Oct 31
6
[PATCH net-next 1/2] net: introduce skb_coalesce_rx_frag()
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 Dalton <mwdalton at google.com> Cc: Eric Dumazet
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
2013 Nov 28
0
[PATCH 1/2] virtio_net: fix error handling for mergeable buffers
...geable(struct receive_queue *rq, struct sk_buff *head_skb) > head_skb->len += len; > head_skb->truesize += MERGE_BUFFER_LEN; > } > - page = virt_to_head_page(buf); > - offset = buf - (char *)page_address(page); > + offset = buf - page_address(page); > if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { > put_page(page); > skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, > @@ -351,9 +362,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) > skb_add_rx_frag(curr_skb, num_skb_frags, page, >...
[PATCH net-next 2/3] virtio-net: use per-receive queue page frag alloc for mergeable bufs
2013 Dec 17
0
[PATCH net-next 2/3] virtio-net: use per-receive queue page frag alloc for mergeable bufs
..._skb_frags = 0; } + truesize = max_t(int, len, MERGE_BUFFER_LEN); if (curr_skb != head_skb) { head_skb->data_len += len; head_skb->len += len; - head_skb->truesize += MERGE_BUFFER_LEN; + head_skb->truesize += truesize; } offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, - len, MERGE_BUFFER_LEN); + len, truesize); } else { skb_add_rx_frag(curr_skb, num_skb_frags, page, - offset, len, MERGE_BUFFER_LEN); + offset, len,...
[PATCH net-next v4 2/6] virtio-net: use per-receive queue page frag alloc for mergeable bufs
2014 Jan 16
0
[PATCH net-next v4 2/6] virtio-net: use per-receive queue page frag alloc for mergeable bufs
...s = 0; } + truesize = max_t(unsigned int, len, MERGE_BUFFER_LEN); if (curr_skb != head_skb) { head_skb->data_len += len; head_skb->len += len; - head_skb->truesize += MERGE_BUFFER_LEN; + head_skb->truesize += truesize; } offset = buf - page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, - len, MERGE_BUFFER_LEN); + len, truesize); } else { skb_add_rx_frag(curr_skb, num_skb_frags, page, - offset, len, MERGE_BUFFER_LEN); + offset, len,...