[net-next-2.6 PATCH 07/10] [RFC] ixgbe: add basic support for settting and getting nfc controls
From: Alexander Duyck <hidden>
Date: 2011-02-25 23:33:38
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This change adds basic suppport for the obtaining of RSS ring counts and setting of RSS hash options. Signed-off-by: Alexander Duyck <redacted> --- drivers/net/ixgbe/ixgbe_ethtool.c | 60 +++++++++++++++++++++++++++++++++++++ 1 files changed, 60 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 1b40c02..6c17e45 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c@@ -2299,6 +2299,65 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data) return 0; } +static int ixgbe_get_rss_hash_opts(struct ixgbe_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + cmd->data = 0; + + /* if RSS is disabled then report no hashing */ + if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) + return 0; + + /* Report default options for RSS on ixgbe */ + switch (cmd->flow_type) { + case TCP_V4_FLOW: + cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + case AH_ESP_V4_FLOW: + case AH_V4_FLOW: + case ESP_V4_FLOW: + case IPV4_FLOW: + cmd->data |= RXH_IP_SRC | RXH_IP_DST; + break; + case TCP_V6_FLOW: + cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + case AH_ESP_V6_FLOW: + case AH_V6_FLOW: + case ESP_V6_FLOW: + case IPV6_FLOW: + cmd->data |= RXH_IP_SRC | RXH_IP_DST; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, + void *rule_locs) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + int ret = -EOPNOTSUPP; + + switch (cmd->cmd) { + case ETHTOOL_GRXFH: + ret = ixgbe_get_rss_hash_opts(adapter, cmd); + break; + case ETHTOOL_GRXRINGS: + cmd->data = adapter->num_rx_queues; + ret = 0; + break; + default: + break; + } + + return ret; +} + static const struct ethtool_ops ixgbe_ethtool_ops = { .get_settings = ixgbe_get_settings, .set_settings = ixgbe_set_settings,
@@ -2334,6 +2393,7 @@ static const struct ethtool_ops ixgbe_ethtool_ops = { .set_coalesce = ixgbe_set_coalesce, .get_flags = ethtool_op_get_flags, .set_flags = ixgbe_set_flags, + .get_rxnfc = ixgbe_get_rxnfc, }; void ixgbe_set_ethtool_ops(struct net_device *netdev)