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authorRoger Pau Monne <roger.pau@citrix.com>2023-10-05 17:08:31 +0300
committerDavid S. Miller <davem@davemloft.net>2023-10-08 15:53:10 +0300
commit66cf7435a26917c0c4d6245ad9137e7606e84fdf (patch)
tree55252fe1aad6197d24edc5b728eae548e2b281c8 /drivers
parent1e0b72a2a6432c0ef67ee5ce8d9172a7c20bba25 (diff)
downloadlinux-66cf7435a26917c0c4d6245ad9137e7606e84fdf.tar.xz
xen-netback: use default TX queue size for vifs
Do not set netback interfaces (vifs) default TX queue size to the ring size. The TX queue size is not related to the ring size, and using the ring size (32) as the queue size can lead to packet drops. Note the TX side of the vif interface in the netback domain is the one receiving packets to be injected to the guest. Do not explicitly set the TX queue length to any value when creating the interface, and instead use the system default. Note that the queue length can also be adjusted at runtime. Fixes: f942dc2552b8 ('xen network backend driver') Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Ross Lagerwall <ross.lagerwall@citrix.com> Acked-by: Wei Liu <wei.liu@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/xen-netback/interface.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index f3f2c07423a6..fc3bb63b9ac3 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -41,8 +41,6 @@
#include <asm/xen/hypercall.h>
#include <xen/balloon.h>
-#define XENVIF_QUEUE_LENGTH 32
-
/* Number of bytes allowed on the internal guest Rx queue. */
#define XENVIF_RX_QUEUE_BYTES (XEN_NETIF_RX_RING_SIZE/2 * PAGE_SIZE)
@@ -530,8 +528,6 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
dev->features = dev->hw_features | NETIF_F_RXCSUM;
dev->ethtool_ops = &xenvif_ethtool_ops;
- dev->tx_queue_len = XENVIF_QUEUE_LENGTH;
-
dev->min_mtu = ETH_MIN_MTU;
dev->max_mtu = ETH_MAX_MTU - VLAN_ETH_HLEN;