qemu/virtio-net-set-the-max-of-queue-size-to-4096.patch

From 58fe483bf5824db177843675629ed955051078fd Mon Sep 17 00:00:00 2001
From: Jinhua Cao <caojinhua1@huawei.com>
Date: Sat, 12 Feb 2022 17:22:38 +0800
Subject: [PATCH] virtio-net: set the max of queue size to 4096

set the max of virtio-net queue size to 4096. Now the
queue_size of virtio-net is set by rx_queue_size and
tx_queue_size

Signed-off-by: Jinhua Cao <caojinhua1@huawei.com>
---
 hw/net/virtio-net.c | 5 +++--
 hw/virtio/virtio.c  | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 7f69a4b842..0ae2ddc002 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -710,6 +710,7 @@ static int virtio_net_max_tx_queue_size(VirtIONet *n)
 
     switch(peer->info->type) {
     case NET_CLIENT_DRIVER_VHOST_USER:
+        return VIRTIO_NET_VQ_MAX_SIZE;
     case NET_CLIENT_DRIVER_VHOST_VDPA:
         return VIRTQUEUE_MAX_SIZE;
     default:
@@ -3638,12 +3639,12 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
      * help from us (using virtio 1 and up).
      */
     if (n->net_conf.rx_queue_size < VIRTIO_NET_RX_QUEUE_MIN_SIZE ||
-        n->net_conf.rx_queue_size > VIRTQUEUE_MAX_SIZE ||
+        n->net_conf.rx_queue_size > VIRTIO_NET_VQ_MAX_SIZE ||
         !is_power_of_2(n->net_conf.rx_queue_size)) {
         error_setg(errp, "Invalid rx_queue_size (= %" PRIu16 "), "
                    "must be a power of 2 between %d and %d.",
                    n->net_conf.rx_queue_size, VIRTIO_NET_RX_QUEUE_MIN_SIZE,
-                   VIRTQUEUE_MAX_SIZE);
+                   VIRTIO_NET_VQ_MAX_SIZE);
         virtio_cleanup(vdev);
         return;
     }
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 267c1e6fd0..d00effe4d5 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2338,7 +2338,7 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
             break;
     }
 
-    if (i == VIRTIO_QUEUE_MAX || queue_size > VIRTQUEUE_MAX_SIZE) {
+    if (i == VIRTIO_QUEUE_MAX) {
         qemu_log("unacceptable queue_size (%d) or num (%d)\n",
                  queue_size, i);
         abort();
-- 
2.27.0