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virtio_net: extract interrupt coalescing settings to a structure

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Extract interrupt coalescing settings to a structure so that it could be
reused in other data structures.

Signed-off-by: Gavin Li <gavinl@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Heng Qi <hengqi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230731070656.96411-2-gavinl@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Gavin Li
2023-07-31 10:06:54 +03:00
committed by Jakub Kicinski
parent 999d0863ff
commit 308d7982dc
1 changed files with 19 additions and 16 deletions
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35
drivers/net/virtio_net.c
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@@ -126,6 +126,11 @@ static const struct virtnet_stat_desc virtnet_rq_stats_desc[] = {
#define VIRTNET_SQ_STATS_LEN ARRAY_SIZE(virtnet_sq_stats_desc)
#define VIRTNET_RQ_STATS_LEN ARRAY_SIZE(virtnet_rq_stats_desc)
struct virtnet_interrupt_coalesce {
u32 max_packets;
u32 max_usecs;
};
/* Internal representation of a send virtqueue */
struct send_queue {
/* Virtqueue associated with this send _queue */
@@ -281,10 +286,8 @@ struct virtnet_info {
u32 speed;
/* Interrupt coalescing settings */
u32 tx_usecs;
u32 rx_usecs;
u32 tx_max_packets;
u32 rx_max_packets;
struct virtnet_interrupt_coalesce intr_coal_tx;
struct virtnet_interrupt_coalesce intr_coal_rx;
unsigned long guest_offloads;
unsigned long guest_offloads_capable;
@@ -3056,8 +3059,8 @@ static int virtnet_send_notf_coal_cmds(struct virtnet_info *vi,
return -EINVAL;
/* Save parameters */
vi->tx_usecs = ec->tx_coalesce_usecs;
vi->tx_max_packets = ec->tx_max_coalesced_frames;
vi->intr_coal_tx.max_usecs = ec->tx_coalesce_usecs;
vi->intr_coal_tx.max_packets = ec->tx_max_coalesced_frames;
vi->ctrl->coal_rx.rx_usecs = cpu_to_le32(ec->rx_coalesce_usecs);
vi->ctrl->coal_rx.rx_max_packets = cpu_to_le32(ec->rx_max_coalesced_frames);
@@ -3069,8 +3072,8 @@ static int virtnet_send_notf_coal_cmds(struct virtnet_info *vi,
return -EINVAL;
/* Save parameters */
vi->rx_usecs = ec->rx_coalesce_usecs;
vi->rx_max_packets = ec->rx_max_coalesced_frames;
vi->intr_coal_rx.max_usecs = ec->rx_coalesce_usecs;
vi->intr_coal_rx.max_packets = ec->rx_max_coalesced_frames;
return 0;
}
@@ -3132,10 +3135,10 @@ static int virtnet_get_coalesce(struct net_device *dev,
struct virtnet_info *vi = netdev_priv(dev);
if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_NOTF_COAL)) {
ec->rx_coalesce_usecs = vi->rx_usecs;
ec->tx_coalesce_usecs = vi->tx_usecs;
ec->tx_max_coalesced_frames = vi->tx_max_packets;
ec->rx_max_coalesced_frames = vi->rx_max_packets;
ec->rx_coalesce_usecs = vi->intr_coal_rx.max_usecs;
ec->tx_coalesce_usecs = vi->intr_coal_tx.max_usecs;
ec->tx_max_coalesced_frames = vi->intr_coal_tx.max_packets;
ec->rx_max_coalesced_frames = vi->intr_coal_rx.max_packets;
} else {
ec->rx_max_coalesced_frames = 1;
@@ -4119,10 +4122,10 @@ static int virtnet_probe(struct virtio_device *vdev)
}
if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_NOTF_COAL)) {
vi->rx_usecs = 0;
vi->tx_usecs = 0;
vi->tx_max_packets = 0;
vi->rx_max_packets = 0;
vi->intr_coal_rx.max_usecs = 0;
vi->intr_coal_tx.max_usecs = 0;
vi->intr_coal_tx.max_packets = 0;
vi->intr_coal_rx.max_packets = 0;
}
if (virtio_has_feature(vdev, VIRTIO_NET_F_HASH_REPORT))