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Message-Id: <b84dfd2aacb4250874e0b4f5002e08ecb644a629.1701929854.git.hengqi@linux.alibaba.com>
Date: Thu, 7 Dec 2023 14:29:18 +0800
From: Heng Qi <hengqi@...ux.alibaba.com>
To: netdev@...r.kernel.org,
virtualization@...ts.linux-foundation.org
Cc: jasowang@...hat.com,
mst@...hat.com,
pabeni@...hat.com,
kuba@...nel.org,
yinjun.zhang@...igine.com,
edumazet@...gle.com,
davem@...emloft.net,
hawk@...nel.org,
john.fastabend@...il.com,
ast@...nel.org,
horms@...nel.org,
xuanzhuo@...ux.alibaba.com
Subject: [PATCH net-next v7 2/4] virtio-net: separate rx/tx coalescing moderation cmds
This patch separates the rx and tx global coalescing moderation
commands to support netdim switches in subsequent patches.
Signed-off-by: Heng Qi <hengqi@...ux.alibaba.com>
Acked-by: Jason Wang <jasowang@...hat.com>
---
drivers/net/virtio_net.c | 31 ++++++++++++++++++++++++++++---
1 file changed, 28 insertions(+), 3 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 0ad2894e6a5e..0285301caf78 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -3266,10 +3266,10 @@ static int virtnet_get_link_ksettings(struct net_device *dev,
return 0;
}
-static int virtnet_send_notf_coal_cmds(struct virtnet_info *vi,
- struct ethtool_coalesce *ec)
+static int virtnet_send_tx_notf_coal_cmds(struct virtnet_info *vi,
+ struct ethtool_coalesce *ec)
{
- struct scatterlist sgs_tx, sgs_rx;
+ struct scatterlist sgs_tx;
int i;
vi->ctrl->coal_tx.tx_usecs = cpu_to_le32(ec->tx_coalesce_usecs);
@@ -3289,6 +3289,15 @@ static int virtnet_send_notf_coal_cmds(struct virtnet_info *vi,
vi->sq[i].intr_coal.max_packets = ec->tx_max_coalesced_frames;
}
+ return 0;
+}
+
+static int virtnet_send_rx_notf_coal_cmds(struct virtnet_info *vi,
+ struct ethtool_coalesce *ec)
+{
+ struct scatterlist sgs_rx;
+ int i;
+
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);
sg_init_one(&sgs_rx, &vi->ctrl->coal_rx, sizeof(vi->ctrl->coal_rx));
@@ -3309,6 +3318,22 @@ static int virtnet_send_notf_coal_cmds(struct virtnet_info *vi,
return 0;
}
+static int virtnet_send_notf_coal_cmds(struct virtnet_info *vi,
+ struct ethtool_coalesce *ec)
+{
+ int err;
+
+ err = virtnet_send_tx_notf_coal_cmds(vi, ec);
+ if (err)
+ return err;
+
+ err = virtnet_send_rx_notf_coal_cmds(vi, ec);
+ if (err)
+ return err;
+
+ return 0;
+}
+
static int virtnet_send_ctrl_coal_vq_cmd(struct virtnet_info *vi,
u16 vqn, u32 max_usecs, u32 max_packets)
{
--
2.19.1.6.gb485710b
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