[PATCH net-next v3 5/5] ixgbevf: Add the appropriate ethtool ops to query RSS indirection table and key
From: Vlad Zolotarov <hidden>
Date: 2015-01-05 14:15:46
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Added get_rxfh_indir_size, get_rxfh_key_size and get_rxfh ethtool_ops callbacks implementations. This enables the ethtool's "-x" and "-n rx-flow-hash" options for 82599 VF devices. Signed-off-by: Vlad Zolotarov <redacted> --- New in v3: - Added a proper support for x550 devices: return the correct redirection table size. New in v2: - Added a detailed description to the patch. --- drivers/net/ethernet/intel/ixgbevf/ethtool.c | 43 ++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index cc0e5b7..eba8c0f 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c@@ -792,6 +792,46 @@ static int ixgbevf_set_coalesce(struct net_device *netdev, return 0; } +static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev) +{ + struct ixgbevf_adapter *adapter = netdev_priv(netdev); + + if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) { + return 64; + } else { + return 128; + } +} + +static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev) +{ + return 40; +} + +static int ixgbevf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, + u8 *hfunc) +{ + struct ixgbevf_adapter *adapter = netdev_priv(netdev); + int err; + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + + if (indir) { + err = ixgbevf_get_reta(&adapter->hw, indir); + if (err) + return err; + } + + if (key) { + err = ixgbevf_get_rss_key(&adapter->hw, key); + if (err) + return err; + } + + return 0; +} + static const struct ethtool_ops ixgbevf_ethtool_ops = { .get_settings = ixgbevf_get_settings, .get_drvinfo = ixgbevf_get_drvinfo,
@@ -809,6 +849,9 @@ static const struct ethtool_ops ixgbevf_ethtool_ops = { .get_ethtool_stats = ixgbevf_get_ethtool_stats, .get_coalesce = ixgbevf_get_coalesce, .set_coalesce = ixgbevf_set_coalesce, + .get_rxfh_indir_size = ixgbevf_get_rxfh_indir_size, + .get_rxfh_key_size = ixgbevf_get_rxfh_key_size, + .get_rxfh = ixgbevf_get_rxfh, }; void ixgbevf_set_ethtool_ops(struct net_device *netdev)
--
2.1.0