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vmxnet3: Implement ethtool's get_channels command

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Some tools (e.g. libxdp) use that information.

Signed-off-by: Andrey Turkin <andrey.turkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrey Turkin 2022-07-19 04:29:55 +00:00 committed by David S. Miller
parent 50ad649dd7
commit ffcdd1197d
1 changed files with 29 additions and 0 deletions
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29
drivers/net/vmxnet3/vmxnet3_ethtool.c
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@ -1292,6 +1292,34 @@ done:
return 0;
}
static void vmxnet3_get_channels(struct net_device *netdev,
struct ethtool_channels *ec)
{
struct vmxnet3_adapter *adapter = netdev_priv(netdev);
if (IS_ENABLED(CONFIG_PCI_MSI) && adapter->intr.type == VMXNET3_IT_MSIX) {
if (adapter->share_intr == VMXNET3_INTR_BUDDYSHARE) {
ec->combined_count = adapter->num_tx_queues;
} else {
ec->rx_count = adapter->num_rx_queues;
ec->tx_count =
adapter->share_intr == VMXNET3_INTR_TXSHARE ?
1 : adapter->num_tx_queues;
}
} else {
ec->combined_count = 1;
}
ec->other_count = 1;
/* Number of interrupts cannot be changed on the fly */
/* Just set maximums to actual values */
ec->max_rx = ec->rx_count;
ec->max_tx = ec->tx_count;
ec->max_combined = ec->combined_count;
ec->max_other = ec->other_count;
}
static const struct ethtool_ops vmxnet3_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
ETHTOOL_COALESCE_MAX_FRAMES |
@ -1317,6 +1345,7 @@ static const struct ethtool_ops vmxnet3_ethtool_ops = {
.set_rxfh = vmxnet3_set_rss,
#endif
.get_link_ksettings = vmxnet3_get_link_ksettings,
.get_channels = vmxnet3_get_channels,
};
void vmxnet3_set_ethtool_ops(struct net_device *netdev)