search for: mergeable_rx_buffer_size_attribut

...; + unsigned int queue_index = get_netdev_rx_queue_index(queue); + struct ewma *avg; + + BUG_ON(queue_index >= vi->max_queue_pairs); + avg = &vi->rq[queue_index].mrg_avg_pkt_len; + return sprintf(buf, "%u\n", get_mergeable_buf_len(avg)); +} + +static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = + __ATTR_RO(mergeable_rx_buffer_size); + +static struct attribute *virtio_net_mrg_rx_attrs[] = { + &mergeable_rx_buffer_size_attribute.attr, + NULL +}; + +static const struct attribute_group virtio_net_mrg_rx_group = { + .name = "virtio_net", + .attrs = virtio_net_mrg_rx_attrs +};...

...&vi->rq[queue_index]; + do { + start = read_seqcount_begin(&rq->sysfs_seq); + avg = rq->mrg_avg_pkt_len; + } while (read_seqcount_retry(&rq->sysfs_seq, start)); + return sprintf(buf, "%u\n", get_mergeable_buf_len(&avg)); +} + +static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = + __ATTR_RO(mergeable_rx_buffer_size); + +static struct attribute *virtio_net_mrg_rx_attrs[] = { + &mergeable_rx_buffer_size_attribute.attr, + NULL +}; + +static const struct attribute_group virtio_net_mrg_rx_group = { + .name = "virtio_net", + .attrs = virtio_net_mrg_rx_attrs +};...

...> + start = read_seqcount_begin(&rq->sysfs_seq); > + avg = rq->mrg_avg_pkt_len; > + } while (read_seqcount_retry(&rq->sysfs_seq, start)); > + return sprintf(buf, "%u\n", get_mergeable_buf_len(&avg)); > +} > + > +static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = > + __ATTR_RO(mergeable_rx_buffer_size); > + > +static struct attribute *virtio_net_mrg_rx_attrs[] = { > + &mergeable_rx_buffer_size_attribute.attr, > + NULL > +}; > + > +static const struct attribute_group virtio_net_mrg_rx_group = { > + .name = "virtio_net&q...

...> + start = read_seqcount_begin(&rq->sysfs_seq); > + avg = rq->mrg_avg_pkt_len; > + } while (read_seqcount_retry(&rq->sysfs_seq, start)); > + return sprintf(buf, "%u\n", get_mergeable_buf_len(&avg)); > +} > + > +static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = > + __ATTR_RO(mergeable_rx_buffer_size); > + > +static struct attribute *virtio_net_mrg_rx_attrs[] = { > + &mergeable_rx_buffer_size_attribute.attr, > + NULL > +}; > + > +static const struct attribute_group virtio_net_mrg_rx_group = { > + .name = "virtio_net&q...

...>= vi->max_queue_pairs); avg = &vi->rq[queue_index].mrg_avg_pkt_len; - return sprintf(buf, "%u\n", get_mergeable_buf_len(avg)); + return sprintf(buf, "%u\n", + get_mergeable_buf_len(&vi->rq[queue_index], avg)); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- MST

...>= vi->max_queue_pairs); avg = &vi->rq[queue_index].mrg_avg_pkt_len; - return sprintf(buf, "%u\n", get_mergeable_buf_len(avg)); + return sprintf(buf, "%u\n", + get_mergeable_buf_len(&vi->rq[queue_index], avg)); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- MST

...>= vi->max_queue_pairs); avg = &vi->rq[queue_index].mrg_avg_pkt_len; - return sprintf(buf, "%u\n", get_mergeable_buf_len(avg)); + return sprintf(buf, "%u\n", + get_mergeable_buf_len(&vi->rq[queue_index], avg)); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- MST

...>= vi->max_queue_pairs); avg = &vi->rq[queue_index].mrg_avg_pkt_len; - return sprintf(buf, "%u\n", get_mergeable_buf_len(avg)); + return sprintf(buf, "%u\n", + get_mergeable_buf_len(&vi->rq[queue_index], avg)); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- MST

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

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

...gt;rq[queue_index].mrg_avg_pkt_len; return sprintf(buf, "%u\n", - get_mergeable_buf_len(&vi->rq[queue_index], avg)); + get_mergeable_buf_len(&vi->rq[queue_index], avg, + SKB_DATA_ALIGN(headroom + tailroom))); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- 2.7.4

...gt;rq[queue_index].mrg_avg_pkt_len; return sprintf(buf, "%u\n", - get_mergeable_buf_len(&vi->rq[queue_index], avg)); + get_mergeable_buf_len(&vi->rq[queue_index], avg, + SKB_DATA_ALIGN(headroom + tailroom))); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- 2.7.4

...> return sprintf(buf, "%u\n", > - get_mergeable_buf_len(&vi->rq[queue_index], avg)); > + get_mergeable_buf_len(&vi->rq[queue_index], avg, > + SKB_DATA_ALIGN(headroom + tailroom))); > } > > static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = > -- > 2.7.4

...gt;rq[queue_index].mrg_avg_pkt_len; return sprintf(buf, "%u\n", - get_mergeable_buf_len(&vi->rq[queue_index], avg)); + get_mergeable_buf_len(&vi->rq[queue_index], avg, + SKB_DATA_ALIGN(headroom + tailroom))); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- 2.7.4

...gt;rq[queue_index].mrg_avg_pkt_len; return sprintf(buf, "%u\n", - get_mergeable_buf_len(&vi->rq[queue_index], avg)); + get_mergeable_buf_len(&vi->rq[queue_index], avg, + SKB_DATA_ALIGN(headroom + tailroom))); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- 2.7.4

...gt;rq[queue_index].mrg_avg_pkt_len; return sprintf(buf, "%u\n", - get_mergeable_buf_len(&vi->rq[queue_index], avg)); + get_mergeable_buf_len(&vi->rq[queue_index], avg, + SKB_DATA_ALIGN(headroom + tailroom))); } static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = -- 2.7.4

...> return sprintf(buf, "%u\n", > - get_mergeable_buf_len(&vi->rq[queue_index], avg)); > + get_mergeable_buf_len(&vi->rq[queue_index], avg, > + SKB_DATA_ALIGN(headroom + tailroom))); > } > > static struct rx_queue_attribute mergeable_rx_buffer_size_attribute = > -- > 2.7.4

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

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

Hi: This series tries to re-enable XDP_REDIRECT for mergeable buffer which was removed since commit 7324f5399b06 ("virtio_net: disable XDP_REDIRECT in receive_mergeable() case"). Main concerns are: - not enough tailroom was reserved which breaks cpumap - complex logic like EWMA and linearizing during XDP processing Fix those by: - reserve enough tailroom during refill - disable EWMA