From 9a713e7c7cca2f31c89367bb7b48310ab8a3e630 Mon Sep 17 00:00:00 2001 From: Peter Waskiewicz Date: Wed, 10 Feb 2010 16:07:54 +0000 Subject: ixgbe: Add support for the new ethtool n-tuple programming interface This patch adds n-tuple filter programming to 82599. Signed-off-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_ethtool.c | 111 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 108 insertions(+), 3 deletions(-) (limited to 'drivers/net/ixgbe/ixgbe_ethtool.c') diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index 07a9410c08d..0d234346a4e 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -979,6 +979,9 @@ static int ixgbe_get_sset_count(struct net_device *netdev, int sset) return IXGBE_TEST_LEN; case ETH_SS_STATS: return IXGBE_STATS_LEN; + case ETH_SS_NTUPLE_FILTERS: + return (ETHTOOL_MAX_NTUPLE_LIST_ENTRY * + ETHTOOL_MAX_NTUPLE_STRING_PER_ENTRY); default: return -EOPNOTSUPP; } @@ -2150,23 +2153,124 @@ static int ixgbe_set_coalesce(struct net_device *netdev, static int ixgbe_set_flags(struct net_device *netdev, u32 data) { struct ixgbe_adapter *adapter = netdev_priv(netdev); + bool need_reset = false; ethtool_op_set_flags(netdev, data); - if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) - return 0; - /* if state changes we need to update adapter->flags and reset */ if ((!!(data & ETH_FLAG_LRO)) != (!!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED))) { adapter->flags2 ^= IXGBE_FLAG2_RSC_ENABLED; + need_reset = true; + } + + /* + * Check if Flow Director n-tuple support was enabled or disabled. If + * the state changed, we need to reset. + */ + if ((adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) && + (!(data & ETH_FLAG_NTUPLE))) { + /* turn off Flow Director perfect, set hash and reset */ + adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; + adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; + need_reset = true; + } else if ((!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) && + (data & ETH_FLAG_NTUPLE)) { + /* turn off Flow Director hash, enable perfect and reset */ + adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; + adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; + need_reset = true; + } else { + /* no state change */ + } + + if (need_reset) { if (netif_running(netdev)) ixgbe_reinit_locked(adapter); else ixgbe_reset(adapter); } + return 0; +} + +static int ixgbe_set_rx_ntuple(struct net_device *dev, + struct ethtool_rx_ntuple *cmd) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + struct ethtool_rx_ntuple_flow_spec fs = cmd->fs; + struct ixgbe_atr_input input_struct; + struct ixgbe_atr_input_masks input_masks; + int target_queue; + + if (adapter->hw.mac.type == ixgbe_mac_82598EB) + return -EOPNOTSUPP; + + /* + * Don't allow programming if the action is a queue greater than + * the number of online Tx queues. + */ + if ((fs.action >= adapter->num_tx_queues) || + (fs.action < ETHTOOL_RXNTUPLE_ACTION_DROP)) + return -EINVAL; + + memset(&input_struct, 0, sizeof(struct ixgbe_atr_input)); + memset(&input_masks, 0, sizeof(struct ixgbe_atr_input_masks)); + + input_masks.src_ip_mask = fs.m_u.tcp_ip4_spec.ip4src; + input_masks.dst_ip_mask = fs.m_u.tcp_ip4_spec.ip4dst; + input_masks.src_port_mask = fs.m_u.tcp_ip4_spec.psrc; + input_masks.dst_port_mask = fs.m_u.tcp_ip4_spec.pdst; + input_masks.vlan_id_mask = fs.vlan_tag_mask; + /* only use the lowest 2 bytes for flex bytes */ + input_masks.data_mask = (fs.data_mask & 0xffff); + + switch (fs.flow_type) { + case TCP_V4_FLOW: + ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_TCP); + break; + case UDP_V4_FLOW: + ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_UDP); + break; + case SCTP_V4_FLOW: + ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_SCTP); + break; + default: + return -1; + } + /* Mask bits from the inputs based on user-supplied mask */ + ixgbe_atr_set_src_ipv4_82599(&input_struct, + (fs.h_u.tcp_ip4_spec.ip4src & ~fs.m_u.tcp_ip4_spec.ip4src)); + ixgbe_atr_set_dst_ipv4_82599(&input_struct, + (fs.h_u.tcp_ip4_spec.ip4dst & ~fs.m_u.tcp_ip4_spec.ip4dst)); + /* 82599 expects these to be byte-swapped for perfect filtering */ + ixgbe_atr_set_src_port_82599(&input_struct, + ((ntohs(fs.h_u.tcp_ip4_spec.psrc)) & ~fs.m_u.tcp_ip4_spec.psrc)); + ixgbe_atr_set_dst_port_82599(&input_struct, + ((ntohs(fs.h_u.tcp_ip4_spec.pdst)) & ~fs.m_u.tcp_ip4_spec.pdst)); + + /* VLAN and Flex bytes are either completely masked or not */ + if (!fs.vlan_tag_mask) + ixgbe_atr_set_vlan_id_82599(&input_struct, fs.vlan_tag); + + if (!input_masks.data_mask) + /* make sure we only use the first 2 bytes of user data */ + ixgbe_atr_set_flex_byte_82599(&input_struct, + (fs.data & 0xffff)); + + /* determine if we need to drop or route the packet */ + if (fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) + target_queue = MAX_RX_QUEUES - 1; + else + target_queue = fs.action; + + spin_lock(&adapter->fdir_perfect_lock); + ixgbe_fdir_add_perfect_filter_82599(&adapter->hw, &input_struct, + &input_masks, 0, target_queue); + spin_unlock(&adapter->fdir_perfect_lock); + + return 0; } static const struct ethtool_ops ixgbe_ethtool_ops = { @@ -2204,6 +2308,7 @@ static const struct ethtool_ops ixgbe_ethtool_ops = { .set_coalesce = ixgbe_set_coalesce, .get_flags = ethtool_op_get_flags, .set_flags = ixgbe_set_flags, + .set_rx_ntuple = ixgbe_set_rx_ntuple, }; void ixgbe_set_ethtool_ops(struct net_device *netdev) -- cgit v1.2.3-70-g09d2