diff options
| author | Maciej Fijalkowski | 2021-03-30 00:43:12 +0200 |
|---|---|---|
| committer | Alexei Starovoitov | 2021-03-30 09:24:39 -0700 |
| commit | 34829eec3b698219a5cbc09a174b2a7407b3b4c1 (patch) | |
| tree | 26fad4bf805fe47fe5389d73dc44b169817ec774 | |
| parent | 0464b1ed07677f869005bde3fade1580b48de67e (diff) | |
veth: Implement ethtool's get_channels() callback
Libbpf's xsk part calls get_channels() API to retrieve the queue count
of the underlying driver so that XSKMAP is sized accordingly.
Implement that in veth so multi queue scenarios can work properly.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210329224316.17793-14-maciej.fijalkowski@intel.com
| -rw-r--r-- | drivers/net/veth.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 91b73db37555..9e525646df1d 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -218,6 +218,17 @@ static void veth_get_ethtool_stats(struct net_device *dev, } } +static void veth_get_channels(struct net_device *dev, + struct ethtool_channels *channels) +{ + channels->tx_count = dev->real_num_tx_queues; + channels->rx_count = dev->real_num_rx_queues; + channels->max_tx = dev->real_num_tx_queues; + channels->max_rx = dev->real_num_rx_queues; + channels->combined_count = min(dev->real_num_rx_queues, dev->real_num_tx_queues); + channels->max_combined = min(dev->real_num_rx_queues, dev->real_num_tx_queues); +} + static const struct ethtool_ops veth_ethtool_ops = { .get_drvinfo = veth_get_drvinfo, .get_link = ethtool_op_get_link, @@ -226,6 +237,7 @@ static const struct ethtool_ops veth_ethtool_ops = { .get_ethtool_stats = veth_get_ethtool_stats, .get_link_ksettings = veth_get_link_ksettings, .get_ts_info = ethtool_op_get_ts_info, + .get_channels = veth_get_channels, }; /* general routines */ |