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authorNeil Horman <nhorman@tuxdriver.com>2013-02-22 14:32:24 +0400
committerDavid S. Miller <davem@davemloft.net>2013-02-25 05:18:55 +0400
commit48412a7e7db656b6a1e52799c39f461a06292395 (patch)
tree357a50bbe62574b2f06bc60155f8e1f351ece9b8 /drivers/net/vmxnet3
parent280b74f7f957130385a0f5184b50fc5800520146 (diff)
downloadlinux-48412a7e7db656b6a1e52799c39f461a06292395.tar.xz
vmxnet3: fix ethtool ring buffer size setting
Noticed that vmxnet3's get_ringparam function was returning the summation of all ring buffers on a NIC, rather than just the size of any one ring. This causes problems when a vmxnet3 instance has multiple queues, as ethtool, when setting ring parameters, first gets the current ring parameters to set the existing values in the set_ringparm commannd. The result is, that unless both rx and tx ring sizes are set in a single operation, which ever ring is not set will silently have its ring count multiplied by the number of queues on the NIC until it reaches a driver defined maxiumum value. Fix it by not multiplying the rx and tx ring sizes by the number of queues in the system, like every other driver. Tested by myself successfully. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Shreyas Bhatewara <sbhatewara@vmware.com> CC: "VMware, Inc." <pv-drivers@vmware.com> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vmxnet3')
-rw-r--r--drivers/net/vmxnet3/vmxnet3_ethtool.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 9bc542be2937..a0feb17a0238 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -448,10 +448,8 @@ vmxnet3_get_ringparam(struct net_device *netdev,
param->rx_mini_max_pending = 0;
param->rx_jumbo_max_pending = 0;
- param->rx_pending = adapter->rx_queue[0].rx_ring[0].size *
- adapter->num_rx_queues;
- param->tx_pending = adapter->tx_queue[0].tx_ring.size *
- adapter->num_tx_queues;
+ param->rx_pending = adapter->rx_queue[0].rx_ring[0].size;
+ param->tx_pending = adapter->tx_queue[0].tx_ring.size;
param->rx_mini_pending = 0;
param->rx_jumbo_pending = 0;
}