search for: config_sysfs

...ueue, + struct rx_queue_attribute *attr, char *buf); + ssize_t (*store)(struct netdev_rx_queue *queue, + struct rx_queue_attribute *attr, const char *buf, size_t len); +}; #ifdef CONFIG_XPS /* @@ -1313,7 +1326,7 @@ struct net_device { unicast) */ -#ifdef CONFIG_RPS +#ifdef CONFIG_SYSFS struct netdev_rx_queue *_rx; /* Number of RX queues allocated at register_netdev() time */ @@ -1424,6 +1437,8 @@ struct net_device { struct device dev; /* space for optional device, statistics, and wireless sysfs groups */ const struct attribute_group *sysfs_groups[4]; + /* space for o...

...ueue, + struct rx_queue_attribute *attr, char *buf); + ssize_t (*store)(struct netdev_rx_queue *queue, + struct rx_queue_attribute *attr, const char *buf, size_t len); +}; #ifdef CONFIG_XPS /* @@ -1313,7 +1326,7 @@ struct net_device { unicast) */ -#ifdef CONFIG_RPS +#ifdef CONFIG_SYSFS struct netdev_rx_queue *_rx; /* Number of RX queues allocated at register_netdev() time */ @@ -1424,6 +1437,8 @@ struct net_device { struct device dev; /* space for optional device, statistics, and wireless sysfs groups */ const struct attribute_group *sysfs_groups[4]; + /* space for o...

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

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

The virtio-net device currently uses aligned MTU-sized mergeable receive packet buffers. Network throughput for workloads with large average packet size can be improved by posting larger receive packet buffers. However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE) buffers reduces the throughput of workloads that do not benefit from GRO and have no large inbound packets. This

The virtio-net device currently uses aligned MTU-sized mergeable receive packet buffers. Network throughput for workloads with large average packet size can be improved by posting larger receive packet buffers. However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE) buffers reduces the throughput of workloads that do not benefit from GRO and have no large inbound packets. This

The virtio-net device currently uses aligned MTU-sized mergeable receive packet buffers. Network throughput for workloads with large average packet size can be improved by posting larger receive packet buffers. However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE) buffers reduces the throughput of workloads that do not benefit from GRO and have no large inbound packets. This

The virtio-net device currently uses aligned MTU-sized mergeable receive packet buffers. Network throughput for workloads with large average packet size can be improved by posting larger receive packet buffers. However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE) buffers reduces the throughput of workloads that do not benefit from GRO and have no large inbound packets. This

Instead of issuing (0) statements when !CONFIG_SYSFS which will cause 'warning: ', we'll use inline statements instead. This will effectively do the same thing, but suppress any unnecessary warnings. Cc: Stephen Hemminger <shemminger at vyatta.com> Cc: bridge at lists.linux-foundation.org Cc: netdev at vger.kernel.org Signed-off-by...

...ing_size(vi->sq[i].vq) < min_size || + virtqueue_get_vring_size(vi->rq[i].vq) < min_size) { + dev_warn(&vi->vdev->dev, + "Transmit/Receive virtqueue vring size must be at least %u\n", + min_size); + return -EINVAL; + } + } + + return 0; +} + #ifdef CONFIG_SYSFS static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue, char *buf) @@ -4056,6 +4076,10 @@ static int virtnet_probe(struct virtio_device *vdev) if (err) goto free; + err = virtnet_validate_vqs(vi); + if (err) + goto free_vqs; + #ifdef CONFIG_SYSFS if (vi->mergea...

..._avg_pkt_len), - GOOD_PACKET_LEN, PAGE_SIZE - hdr_len); - len = ALIGN(len, MERGEABLE_BUFFER_ALIGN); + len = get_mergeable_buf_len(&rq->mrg_avg_pkt_len); if (unlikely(!skb_page_frag_refill(len, alloc_frag, gfp))) return -ENOMEM; @@ -1594,6 +1601,33 @@ err: return ret; } +#ifdef CONFIG_SYSFS +static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue, + struct rx_queue_attribute *attribute, char *buf) +{ + struct virtnet_info *vi = netdev_priv(queue->dev); + unsigned int queue_index = get_netdev_rx_queue_index(queue); + struct ewma *avg; + + BUG_ON(queue_index >=...

...init_table(vi->rq[i].sg, ARRAY_SIZE(vi->rq[i].sg)); + seqcount_init(&vi->rq[i].sysfs_seq); ewma_init(&vi->rq[i].mrg_avg_pkt_len, 1, RECEIVE_AVG_WEIGHT); sg_init_table(vi->sq[i].sg, ARRAY_SIZE(vi->sq[i].sg)); } @@ -1594,6 +1615,39 @@ err: return ret; } +#ifdef CONFIG_SYSFS +static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue, + struct rx_queue_attribute *attribute, char *buf) +{ + struct virtnet_info *vi = netdev_priv(queue->dev); + unsigned int queue_index = get_netdev_rx_queue_index(queue); + struct receive_queue *rq; + struct ewma avg; +...

...;rq[i].sg)); > + seqcount_init(&vi->rq[i].sysfs_seq); > ewma_init(&vi->rq[i].mrg_avg_pkt_len, 1, RECEIVE_AVG_WEIGHT); > sg_init_table(vi->sq[i].sg, ARRAY_SIZE(vi->sq[i].sg)); > } > @@ -1594,6 +1615,39 @@ err: > return ret; > } > > +#ifdef CONFIG_SYSFS > +static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue, > + struct rx_queue_attribute *attribute, char *buf) > +{ > + struct virtnet_info *vi = netdev_priv(queue->dev); > + unsigned int queue_index = get_netdev_rx_queue_index(queue); > + struct receive_q...

...;rq[i].sg)); > + seqcount_init(&vi->rq[i].sysfs_seq); > ewma_init(&vi->rq[i].mrg_avg_pkt_len, 1, RECEIVE_AVG_WEIGHT); > sg_init_table(vi->sq[i].sg, ARRAY_SIZE(vi->sq[i].sg)); > } > @@ -1594,6 +1615,39 @@ err: > return ret; > } > > +#ifdef CONFIG_SYSFS > +static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue, > + struct rx_queue_attribute *attribute, char *buf) > +{ > + struct virtnet_info *vi = netdev_priv(queue->dev); > + unsigned int queue_index = get_netdev_rx_queue_index(queue); > + struct receive_q...

...c inline bool isolate_mobilepage(struct page *page, isolate_mode_t mode) > +{ > + return false; > +} > + > +static inline void putback_mobilepage(struct page *page) > +{ > +} > #endif /* CONFIG_COMPACTION */ > > #if defined(CONFIG_COMPACTION) && defined(CONFIG_SYSFS) && defined(CONFIG_NUMA) > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 35ec87e..33c9aa5 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -395,6 +395,8 @@ struct address_space_operations { > */ > int (*migratepage) (stru...

...c inline bool isolate_mobilepage(struct page *page, isolate_mode_t mode) > +{ > + return false; > +} > + > +static inline void putback_mobilepage(struct page *page) > +{ > +} > #endif /* CONFIG_COMPACTION */ > > #if defined(CONFIG_COMPACTION) && defined(CONFIG_SYSFS) && defined(CONFIG_NUMA) > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 35ec87e..33c9aa5 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -395,6 +395,8 @@ struct address_space_operations { > */ > int (*migratepage) (stru...

...e single tx/rx queue pair as default */ 1909 vi->curr_queue_pairs = 1; 1910 vi->max_queue_pairs = max_queue_pairs; 1911 1912 /* Allocate/initialize the rx/tx queues, and invoke find_vqs */ 1913 err = init_vqs(vi); 1914 if (err) 1915 goto free_stats; 1916 1917 #ifdef CONFIG_SYSFS 1918 if (vi->mergeable_rx_bufs) 1919 dev->sysfs_rx_queue_group = &virtio_net_mrg_rx_group; 1920 #endif 1921 netif_set_real_num_tx_queues(dev, vi->curr_queue_pairs); 1922 netif_set_real_num_rx_queues(dev, vi->curr_queue_pairs); 1923 1924 virtnet_init_settings(dev...

...e single tx/rx queue pair as default */ 1909 vi->curr_queue_pairs = 1; 1910 vi->max_queue_pairs = max_queue_pairs; 1911 1912 /* Allocate/initialize the rx/tx queues, and invoke find_vqs */ 1913 err = init_vqs(vi); 1914 if (err) 1915 goto free_stats; 1916 1917 #ifdef CONFIG_SYSFS 1918 if (vi->mergeable_rx_bufs) 1919 dev->sysfs_rx_queue_group = &virtio_net_mrg_rx_group; 1920 #endif 1921 netif_set_real_num_tx_queues(dev, vi->curr_queue_pairs); 1922 netif_set_real_num_rx_queues(dev, vi->curr_queue_pairs); 1923 1924 virtnet_init_settings(dev...