From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
To: virtualization@lists.linux-foundation.org
Cc: Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Johannes Berg <johannes@sipsolutions.net>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Hans de Goede <hdegoede@redhat.com>,
Mark Gross <markgross@kernel.org>,
Vadim Pasternak <vadimp@nvidia.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Cornelia Huck <cohuck@redhat.com>,
Halil Pasic <pasic@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
Vincent Whitchurch <vincent.whitchurch@axis.com>,
linux-um@lists.infradead.org, netdev@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org,
kvm@vger.kernel.org, bpf@vger.kernel.org,
kangjie.xu@linux.alibaba.com
Subject: [PATCH v12 40/40] virtio_net: support set_ringparam
Date: Wed, 20 Jul 2022 11:04:36 +0800 [thread overview]
Message-ID: <20220720030436.79520-41-xuanzhuo@linux.alibaba.com> (raw)
In-Reply-To: <20220720030436.79520-1-xuanzhuo@linux.alibaba.com>
Support set_ringparam based on virtio queue reset.
Users can use ethtool -G eth0 <ring_num> to modify the ring size of
virtio-net.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
drivers/net/virtio_net.c | 48 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index d1e6940b46d8..59fc48c60403 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2329,6 +2329,53 @@ static void virtnet_get_ringparam(struct net_device *dev,
ring->tx_pending = virtqueue_get_vring_size(vi->sq[0].vq);
}
+static int virtnet_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring,
+ struct kernel_ethtool_ringparam *kernel_ring,
+ struct netlink_ext_ack *extack)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
+ u32 rx_pending, tx_pending;
+ struct receive_queue *rq;
+ struct send_queue *sq;
+ int i, err;
+
+ if (ring->rx_mini_pending || ring->rx_jumbo_pending)
+ return -EINVAL;
+
+ rx_pending = virtqueue_get_vring_size(vi->rq[0].vq);
+ tx_pending = virtqueue_get_vring_size(vi->sq[0].vq);
+
+ if (ring->rx_pending == rx_pending &&
+ ring->tx_pending == tx_pending)
+ return 0;
+
+ if (ring->rx_pending > vi->rq[0].vq->num_max)
+ return -EINVAL;
+
+ if (ring->tx_pending > vi->sq[0].vq->num_max)
+ return -EINVAL;
+
+ for (i = 0; i < vi->max_queue_pairs; i++) {
+ rq = vi->rq + i;
+ sq = vi->sq + i;
+
+ if (ring->tx_pending != tx_pending) {
+ err = virtnet_tx_resize(vi, sq, ring->tx_pending);
+ if (err)
+ return err;
+ }
+
+ if (ring->rx_pending != rx_pending) {
+ err = virtnet_rx_resize(vi, rq, ring->rx_pending);
+ if (err)
+ return err;
+ }
+ }
+
+ return 0;
+}
+
static bool virtnet_commit_rss_command(struct virtnet_info *vi)
{
struct net_device *dev = vi->dev;
@@ -2816,6 +2863,7 @@ static const struct ethtool_ops virtnet_ethtool_ops = {
.get_drvinfo = virtnet_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_ringparam = virtnet_get_ringparam,
+ .set_ringparam = virtnet_set_ringparam,
.get_strings = virtnet_get_strings,
.get_sset_count = virtnet_get_sset_count,
.get_ethtool_stats = virtnet_get_ethtool_stats,
--
2.31.0
prev parent reply other threads:[~2022-07-20 3:09 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 3:03 [PATCH v12 00/40] virtio pci support VIRTIO_F_RING_RESET Xuan Zhuo
2022-07-20 3:03 ` [PATCH v12 01/40] virtio: record the maximum queue num supported by the device Xuan Zhuo
2022-07-21 3:36 ` Jason Wang
2022-07-20 3:03 ` [PATCH v12 02/40] virtio: struct virtio_config_ops add callbacks for queue_reset Xuan Zhuo
2022-07-21 3:39 ` Jason Wang
2022-07-20 3:03 ` [PATCH v12 03/40] virtio_ring: update the document of the virtqueue_detach_unused_buf for queue reset Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 04/40] virtio_ring: extract the logic of freeing vring Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 05/40] virtio_ring: split vring_virtqueue Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 06/40] virtio_ring: introduce virtqueue_init() Xuan Zhuo
2022-07-21 7:07 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 07/40] virtio_ring: split: introduce vring_free_split() Xuan Zhuo
2022-07-21 7:08 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 08/40] virtio_ring: split: extract the logic of alloc queue Xuan Zhuo
2022-07-21 9:13 ` Jason Wang
2022-07-22 3:47 ` Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 09/40] virtio_ring: split: extract the logic of alloc state and extra Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 10/40] virtio_ring: split: extract the logic of attach vring Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 11/40] virtio_ring: split: extract the logic of vring init Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 12/40] virtio_ring: split: introduce virtqueue_reinit_split() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 13/40] virtio_ring: split: reserve vring_align, may_reduce_num Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 14/40] virtio_ring: split: introduce virtqueue_resize_split() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 15/40] virtio_ring: packed: introduce vring_free_packed Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 16/40] virtio_ring: packed: extract the logic of alloc queue Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 17/40] virtio_ring: packed: extract the logic of alloc state and extra Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 18/40] virtio_ring: packed: extract the logic of attach vring Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 19/40] virtio_ring: packed: extract the logic of vring init Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 20/40] virtio_ring: packed: introduce virtqueue_reinit_packed() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 21/40] virtio_ring: packed: introduce virtqueue_resize_packed() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 22/40] virtio_ring: introduce virtqueue_resize() Xuan Zhuo
2022-07-21 9:15 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 23/40] virtio_pci: struct virtio_pci_common_cfg add queue_notify_data Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 24/40] virtio: allow to unbreak/break virtqueue individually Xuan Zhuo
2022-07-21 9:14 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 25/40] virtio: queue_reset: add VIRTIO_F_RING_RESET Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 26/40] virtio_ring: struct virtqueue introduce reset Xuan Zhuo
2022-07-21 9:14 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 27/40] virtio_pci: struct virtio_pci_common_cfg add queue_reset Xuan Zhuo
2022-07-21 9:14 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 28/40] virtio_pci: introduce helper to get/set queue reset Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 29/40] virtio_pci: extract the logic of active vq for modern pci Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 30/40] virtio_pci: support VIRTIO_F_RING_RESET Xuan Zhuo
2022-07-21 9:15 ` Jason Wang
2022-07-22 3:05 ` Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 31/40] virtio: find_vqs() add arg sizes Xuan Zhuo
2022-07-21 9:17 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 32/40] virtio_pci: support the arg sizes of find_vqs() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 33/40] virtio_mmio: " Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 34/40] virtio: add helper virtio_find_vqs_ctx_size() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 35/40] virtio_net: set the default max ring size by find_vqs() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 36/40] virtio_net: get ringparam by virtqueue_get_vring_max_size() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 37/40] virtio_net: split free_unused_bufs() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 38/40] virtio_net: support rx queue resize Xuan Zhuo
2022-07-21 9:25 ` Jason Wang
2022-07-25 6:38 ` Xuan Zhuo
2022-07-25 6:57 ` Jason Wang
2022-07-25 7:21 ` Xuan Zhuo
2022-07-25 7:28 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 39/40] virtio_net: support tx " Xuan Zhuo
2022-07-21 9:30 ` Jason Wang
2022-07-20 3:04 ` Xuan Zhuo [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220720030436.79520-41-xuanzhuo@linux.alibaba.com \
--to=xuanzhuo@linux.alibaba.com \
--cc=agordeev@linux.ibm.com \
--cc=anton.ivanov@cambridgegreys.com \
--cc=ast@kernel.org \
--cc=bjorn.andersson@linaro.org \
--cc=borntraeger@linux.ibm.com \
--cc=bpf@vger.kernel.org \
--cc=cohuck@redhat.com \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=farman@linux.ibm.com \
--cc=gor@linux.ibm.com \
--cc=hawk@kernel.org \
--cc=hca@linux.ibm.com \
--cc=hdegoede@redhat.com \
--cc=jasowang@redhat.com \
--cc=johannes@sipsolutions.net \
--cc=john.fastabend@gmail.com \
--cc=kangjie.xu@linux.alibaba.com \
--cc=kuba@kernel.org \
--cc=kvm@vger.kernel.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-um@lists.infradead.org \
--cc=markgross@kernel.org \
--cc=mathieu.poirier@linaro.org \
--cc=mst@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=pasic@linux.ibm.com \
--cc=platform-driver-x86@vger.kernel.org \
--cc=richard@nod.at \
--cc=svens@linux.ibm.com \
--cc=vadimp@nvidia.com \
--cc=vincent.whitchurch@axis.com \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).