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authorVlad Zolotarov <vladz@cloudius-systems.com>2015-03-30 21:35:29 +0300
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2015-04-11 11:50:28 -0700
commitb641173915ae7b51c79abfde9580c3a381876bb1 (patch)
tree804ab6101fe91b4f6bcba1f6c7a2380f29a34126 /drivers/net
parentad1431e2db5590bcc32ded8a27b3b5c0ced9add7 (diff)
downloadlinux-b641173915ae7b51c79abfde9580c3a381876bb1.tar.bz2
ixgbevf: Add the appropriate ethtool ops to query RSS indirection table and key
Added get_rxfh_indir_size, get_rxfh_key_size and get_rxfh ethtool_ops callbacks implementations. This enables the ethtool's "-x" and "--show-rxfh[-indir]" options for VF devices. This patch adds the support for 82599 and x540 devices only. Support for other devices will be added later. Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ethtool.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index e83c85bf2602..b2f5b161d792 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -794,6 +794,71 @@ static int ixgbevf_set_coalesce(struct net_device *netdev,
return 0;
}
+static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
+ u32 *rules __always_unused)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(dev);
+
+ switch (info->cmd) {
+ case ETHTOOL_GRXRINGS:
+ info->data = adapter->num_rx_queues;
+ return 0;
+ default:
+ hw_dbg(&adapter->hw, "Command parameters not supported\n");
+ return -EOPNOTSUPP;
+ }
+}
+
+static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+
+ /* We support this operation only for 82599 and x540 at the moment */
+ if (adapter->hw.mac.type < ixgbe_mac_X550_vf)
+ return IXGBEVF_82599_RETA_SIZE;
+
+ return 0;
+}
+
+static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+
+ /* We support this operation only for 82599 and x540 at the moment */
+ if (adapter->hw.mac.type < ixgbe_mac_X550_vf)
+ return IXGBEVF_RSS_HASH_KEY_SIZE;
+
+ return 0;
+}
+
+static int ixgbevf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
+ u8 *hfunc)
+{
+ struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+ int err = 0;
+
+ if (hfunc)
+ *hfunc = ETH_RSS_HASH_TOP;
+
+ /* If neither indirection table nor hash key was requested - just
+ * return a success avoiding taking any locks.
+ */
+ if (!indir && !key)
+ return 0;
+
+ spin_lock_bh(&adapter->mbx_lock);
+ if (indir)
+ err = ixgbevf_get_reta_locked(&adapter->hw, indir,
+ adapter->num_rx_queues);
+
+ if (!err && key)
+ err = ixgbevf_get_rss_key_locked(&adapter->hw, key);
+
+ spin_unlock_bh(&adapter->mbx_lock);
+
+ return err;
+}
+
static const struct ethtool_ops ixgbevf_ethtool_ops = {
.get_settings = ixgbevf_get_settings,
.get_drvinfo = ixgbevf_get_drvinfo,
@@ -811,6 +876,10 @@ 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_rxnfc = ixgbevf_get_rxnfc,
+ .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)