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Message-ID: <20240325214912.323749-2-danielj@nvidia.com>
Date: Mon, 25 Mar 2024 16:49:08 -0500
From: Daniel Jurgens <danielj@...dia.com>
To: <netdev@...r.kernel.org>
CC: <mst@...hat.com>, <jasowang@...hat.com>, <xuanzhuo@...ux.alibaba.com>,
<virtualization@...ts.linux.dev>, <davem@...emloft.net>,
<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
<jiri@...dia.com>, Daniel Jurgens <danielj@...dia.com>
Subject: [PATCH net-next 1/4] virtio_net: Store RSS setting in virtnet_info
Stop storing RSS setting in the control buffer. This is prep work for
removing RTNL lock protection of the control buffer.
Signed-off-by: Daniel Jurgens <danielj@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
---
drivers/net/virtio_net.c | 40 ++++++++++++++++++++--------------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index d7ce4a1011ea..7419a68cf6e2 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -240,7 +240,6 @@ struct control_buf {
u8 allmulti;
__virtio16 vid;
__virtio64 offloads;
- struct virtio_net_ctrl_rss rss;
struct virtio_net_ctrl_coal_tx coal_tx;
struct virtio_net_ctrl_coal_rx coal_rx;
struct virtio_net_ctrl_coal_vq coal_vq;
@@ -282,6 +281,7 @@ struct virtnet_info {
u16 rss_indir_table_size;
u32 rss_hash_types_supported;
u32 rss_hash_types_saved;
+ struct virtio_net_ctrl_rss rss;
/* Has control virtqueue */
bool has_cvq;
@@ -3048,17 +3048,17 @@ static bool virtnet_commit_rss_command(struct virtnet_info *vi)
sg_init_table(sgs, 4);
sg_buf_size = offsetof(struct virtio_net_ctrl_rss, indirection_table);
- sg_set_buf(&sgs[0], &vi->ctrl->rss, sg_buf_size);
+ sg_set_buf(&sgs[0], &vi->rss, sg_buf_size);
- sg_buf_size = sizeof(uint16_t) * (vi->ctrl->rss.indirection_table_mask + 1);
- sg_set_buf(&sgs[1], vi->ctrl->rss.indirection_table, sg_buf_size);
+ sg_buf_size = sizeof(uint16_t) * (vi->rss.indirection_table_mask + 1);
+ sg_set_buf(&sgs[1], vi->rss.indirection_table, sg_buf_size);
sg_buf_size = offsetof(struct virtio_net_ctrl_rss, key)
- offsetof(struct virtio_net_ctrl_rss, max_tx_vq);
- sg_set_buf(&sgs[2], &vi->ctrl->rss.max_tx_vq, sg_buf_size);
+ sg_set_buf(&sgs[2], &vi->rss.max_tx_vq, sg_buf_size);
sg_buf_size = vi->rss_key_size;
- sg_set_buf(&sgs[3], vi->ctrl->rss.key, sg_buf_size);
+ sg_set_buf(&sgs[3], vi->rss.key, sg_buf_size);
if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MQ,
vi->has_rss ? VIRTIO_NET_CTRL_MQ_RSS_CONFIG
@@ -3074,21 +3074,21 @@ static void virtnet_init_default_rss(struct virtnet_info *vi)
u32 indir_val = 0;
int i = 0;
- vi->ctrl->rss.hash_types = vi->rss_hash_types_supported;
+ vi->rss.hash_types = vi->rss_hash_types_supported;
vi->rss_hash_types_saved = vi->rss_hash_types_supported;
- vi->ctrl->rss.indirection_table_mask = vi->rss_indir_table_size
+ vi->rss.indirection_table_mask = vi->rss_indir_table_size
? vi->rss_indir_table_size - 1 : 0;
- vi->ctrl->rss.unclassified_queue = 0;
+ vi->rss.unclassified_queue = 0;
for (; i < vi->rss_indir_table_size; ++i) {
indir_val = ethtool_rxfh_indir_default(i, vi->curr_queue_pairs);
- vi->ctrl->rss.indirection_table[i] = indir_val;
+ vi->rss.indirection_table[i] = indir_val;
}
- vi->ctrl->rss.max_tx_vq = vi->has_rss ? vi->curr_queue_pairs : 0;
- vi->ctrl->rss.hash_key_length = vi->rss_key_size;
+ vi->rss.max_tx_vq = vi->has_rss ? vi->curr_queue_pairs : 0;
+ vi->rss.hash_key_length = vi->rss_key_size;
- netdev_rss_key_fill(vi->ctrl->rss.key, vi->rss_key_size);
+ netdev_rss_key_fill(vi->rss.key, vi->rss_key_size);
}
static void virtnet_get_hashflow(const struct virtnet_info *vi, struct ethtool_rxnfc *info)
@@ -3199,7 +3199,7 @@ static bool virtnet_set_hashflow(struct virtnet_info *vi, struct ethtool_rxnfc *
if (new_hashtypes != vi->rss_hash_types_saved) {
vi->rss_hash_types_saved = new_hashtypes;
- vi->ctrl->rss.hash_types = vi->rss_hash_types_saved;
+ vi->rss.hash_types = vi->rss_hash_types_saved;
if (vi->dev->features & NETIF_F_RXHASH)
return virtnet_commit_rss_command(vi);
}
@@ -3752,11 +3752,11 @@ static int virtnet_get_rxfh(struct net_device *dev,
if (rxfh->indir) {
for (i = 0; i < vi->rss_indir_table_size; ++i)
- rxfh->indir[i] = vi->ctrl->rss.indirection_table[i];
+ rxfh->indir[i] = vi->rss.indirection_table[i];
}
if (rxfh->key)
- memcpy(rxfh->key, vi->ctrl->rss.key, vi->rss_key_size);
+ memcpy(rxfh->key, vi->rss.key, vi->rss_key_size);
rxfh->hfunc = ETH_RSS_HASH_TOP;
@@ -3776,10 +3776,10 @@ static int virtnet_set_rxfh(struct net_device *dev,
if (rxfh->indir) {
for (i = 0; i < vi->rss_indir_table_size; ++i)
- vi->ctrl->rss.indirection_table[i] = rxfh->indir[i];
+ vi->rss.indirection_table[i] = rxfh->indir[i];
}
if (rxfh->key)
- memcpy(vi->ctrl->rss.key, rxfh->key, vi->rss_key_size);
+ memcpy(vi->rss.key, rxfh->key, vi->rss_key_size);
virtnet_commit_rss_command(vi);
@@ -4098,9 +4098,9 @@ static int virtnet_set_features(struct net_device *dev,
if ((dev->features ^ features) & NETIF_F_RXHASH) {
if (features & NETIF_F_RXHASH)
- vi->ctrl->rss.hash_types = vi->rss_hash_types_saved;
+ vi->rss.hash_types = vi->rss_hash_types_saved;
else
- vi->ctrl->rss.hash_types = VIRTIO_NET_HASH_REPORT_NONE;
+ vi->rss.hash_types = VIRTIO_NET_HASH_REPORT_NONE;
if (!virtnet_commit_rss_command(vi))
return -EINVAL;
--
2.42.0
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