6.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Akihiko Odaki akihiko.odaki@daynix.com
[ Upstream commit 97841341e302eac13d54eb5e968570b5626196a7 ]
Mark the fields of struct virtio_net_ctrl_rss as little endian as they are in struct virtio_net_rss_config, which it follows.
Fixes: c7114b1249fa ("drivers/net/virtio_net: Added basic RSS support.") Signed-off-by: Akihiko Odaki akihiko.odaki@daynix.com Acked-by: Jason Wang jasowang@redhat.com Reviewed-by: Xuan Zhuo xuanzhuo@linux.alibaba.com Acked-by: Michael S. Tsirkin mst@redhat.com Tested-by: Lei Yang leiyang@redhat.com Link: https://patch.msgid.link/20250321-virtio-v2-2-33afb8f4640b@daynix.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/virtio_net.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 7646ddd9bef70..d1ed544ba03ac 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -368,15 +368,15 @@ struct receive_queue { */ #define VIRTIO_NET_RSS_MAX_KEY_SIZE 40 struct virtio_net_ctrl_rss { - u32 hash_types; - u16 indirection_table_mask; - u16 unclassified_queue; - u16 hash_cfg_reserved; /* for HASH_CONFIG (see virtio_net_hash_config for details) */ - u16 max_tx_vq; + __le32 hash_types; + __le16 indirection_table_mask; + __le16 unclassified_queue; + __le16 hash_cfg_reserved; /* for HASH_CONFIG (see virtio_net_hash_config for details) */ + __le16 max_tx_vq; u8 hash_key_length; u8 key[VIRTIO_NET_RSS_MAX_KEY_SIZE];
- u16 *indirection_table; + __le16 *indirection_table; };
/* Control VQ buffers: protected by the rtnl lock */ @@ -3576,9 +3576,9 @@ static void virtnet_rss_update_by_qpairs(struct virtnet_info *vi, u16 queue_pair
for (; i < vi->rss_indir_table_size; ++i) { indir_val = ethtool_rxfh_indir_default(i, queue_pairs); - vi->rss.indirection_table[i] = indir_val; + vi->rss.indirection_table[i] = cpu_to_le16(indir_val); } - vi->rss.max_tx_vq = queue_pairs; + vi->rss.max_tx_vq = cpu_to_le16(queue_pairs); }
static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) @@ -4097,10 +4097,10 @@ static bool virtnet_commit_rss_command(struct virtnet_info *vi)
static void virtnet_init_default_rss(struct virtnet_info *vi) { - vi->rss.hash_types = vi->rss_hash_types_supported; + vi->rss.hash_types = cpu_to_le32(vi->rss_hash_types_supported); vi->rss_hash_types_saved = vi->rss_hash_types_supported; vi->rss.indirection_table_mask = vi->rss_indir_table_size - ? vi->rss_indir_table_size - 1 : 0; + ? cpu_to_le16(vi->rss_indir_table_size - 1) : 0; vi->rss.unclassified_queue = 0;
virtnet_rss_update_by_qpairs(vi, vi->curr_queue_pairs); @@ -4218,7 +4218,7 @@ 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->rss.hash_types = vi->rss_hash_types_saved; + vi->rss.hash_types = cpu_to_le32(vi->rss_hash_types_saved); if (vi->dev->features & NETIF_F_RXHASH) return virtnet_commit_rss_command(vi); } @@ -5398,7 +5398,7 @@ 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->rss.indirection_table[i]; + rxfh->indir[i] = le16_to_cpu(vi->rss.indirection_table[i]); }
if (rxfh->key) @@ -5426,7 +5426,7 @@ static int virtnet_set_rxfh(struct net_device *dev, return -EOPNOTSUPP;
for (i = 0; i < vi->rss_indir_table_size; ++i) - vi->rss.indirection_table[i] = rxfh->indir[i]; + vi->rss.indirection_table[i] = cpu_to_le16(rxfh->indir[i]); update = true; }
@@ -6044,9 +6044,9 @@ static int virtnet_set_features(struct net_device *dev,
if ((dev->features ^ features) & NETIF_F_RXHASH) { if (features & NETIF_F_RXHASH) - vi->rss.hash_types = vi->rss_hash_types_saved; + vi->rss.hash_types = cpu_to_le32(vi->rss_hash_types_saved); else - vi->rss.hash_types = VIRTIO_NET_HASH_REPORT_NONE; + vi->rss.hash_types = cpu_to_le32(VIRTIO_NET_HASH_REPORT_NONE);
if (!virtnet_commit_rss_command(vi)) return -EINVAL;