[Intel-wired-lan] [PATCH net-next v9 7/7] ixgbevf: Add the appropriate ethtool ops to query RSS indirection table and key
Vlad Zolotarov
vladz at cloudius-systems.com
Sun Mar 29 16:16:37 UTC 2015
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 at cloudius-systems.com>
---
New in v9:
- Use IXGBEVF_RSS_HASH_KEY_SIZE macro.
New in v6:
- Added a required get_rxnfc callback to ixgbevf_ethtool_ops.
New in v4:
- Removed not needed braces in if-statement in ixgbevf_get_rxfh_indir_size().
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 | 58 ++++++++++++++++++++++++++++
1 file changed, 58 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index e83c85b..4d2f59f 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -794,6 +794,60 @@ 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);
+
+ 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 IXGBEVF_RSS_HASH_KEY_SIZE;
+}
+
+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, indir);
+ if (err)
+ return err;
+ }
+
+ if (key) {
+ err = ixgbevf_get_rss_key(adapter, 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,
@@ -811,6 +865,10 @@ 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)
--
2.1.0
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