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igc: Add support for the ntuple feature 

Copy the ntuple feature into list of user selectable features.
Enable the ntuple feature.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Sasha Neftin 2019-02-20 14:39:31 +02:00 committed by Jeff Kirsher
parent 36b9fea609
commit 65cd3a725e
2 changed files with 89 additions and 0 deletions
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3
drivers/net/ethernet/intel/igc/igc_defines.h
View File

@ -400,6 +400,9 @@
#define IGC_N0_QUEUE -1
#define IGC_MAX_MAC_HDR_LEN 127
#define IGC_MAX_NETWORK_HDR_LEN 511
#define IGC_VLAPQF_QUEUE_SEL(_n, q_idx) ((q_idx) << ((_n) * 4))
#define IGC_VLAPQF_P_VALID(_n) (0x1 << (3 + (_n) * 4))
#define IGC_VLAPQF_QUEUE_MASK 0x03

86
drivers/net/ethernet/intel/igc/igc_main.c
View File

@ -2127,6 +2127,86 @@ static struct net_device_stats *igc_get_stats(struct net_device *netdev)
return &netdev->stats;
}
static netdev_features_t igc_fix_features(struct net_device *netdev,
netdev_features_t features)
{
/* Since there is no support for separate Rx/Tx vlan accel
* enable/disable make sure Tx flag is always in same state as Rx.
*/
if (features & NETIF_F_HW_VLAN_CTAG_RX)
features |= NETIF_F_HW_VLAN_CTAG_TX;
else
features &= ~NETIF_F_HW_VLAN_CTAG_TX;
return features;
}
static int igc_set_features(struct net_device *netdev,
netdev_features_t features)
{
netdev_features_t changed = netdev->features ^ features;
struct igc_adapter *adapter = netdev_priv(netdev);
/* Add VLAN support */
if (!(changed & (NETIF_F_RXALL | NETIF_F_NTUPLE)))
return 0;
if (!(features & NETIF_F_NTUPLE)) {
struct hlist_node *node2;
struct igc_nfc_filter *rule;
spin_lock(&adapter->nfc_lock);
hlist_for_each_entry_safe(rule, node2,
&adapter->nfc_filter_list, nfc_node) {
igc_erase_filter(adapter, rule);
hlist_del(&rule->nfc_node);
kfree(rule);
}
spin_unlock(&adapter->nfc_lock);
adapter->nfc_filter_count = 0;
}
netdev->features = features;
if (netif_running(netdev))
igc_reinit_locked(adapter);
else
igc_reset(adapter);
return 1;
}
static netdev_features_t
igc_features_check(struct sk_buff *skb, struct net_device *dev,
netdev_features_t features)
{
unsigned int network_hdr_len, mac_hdr_len;
/* Make certain the headers can be described by a context descriptor */
mac_hdr_len = skb_network_header(skb) - skb->data;
if (unlikely(mac_hdr_len > IGC_MAX_MAC_HDR_LEN))
return features & ~(NETIF_F_HW_CSUM |
NETIF_F_SCTP_CRC |
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_TSO |
NETIF_F_TSO6);
network_hdr_len = skb_checksum_start(skb) - skb_network_header(skb);
if (unlikely(network_hdr_len > IGC_MAX_NETWORK_HDR_LEN))
return features & ~(NETIF_F_HW_CSUM |
NETIF_F_SCTP_CRC |
NETIF_F_TSO |
NETIF_F_TSO6);
/* We can only support IPv4 TSO in tunnels if we can mangle the
* inner IP ID field, so strip TSO if MANGLEID is not supported.
*/
if (skb->encapsulation && !(features & NETIF_F_TSO_MANGLEID))
features &= ~NETIF_F_TSO;
return features;
}
/**
* igc_configure - configure the hardware for RX and TX
* @adapter: private board structure
@ -3793,6 +3873,9 @@ static const struct net_device_ops igc_netdev_ops = {
.ndo_set_mac_address = igc_set_mac,
.ndo_change_mtu = igc_change_mtu,
.ndo_get_stats = igc_get_stats,
.ndo_fix_features = igc_fix_features,
.ndo_set_features = igc_set_features,
.ndo_features_check = igc_features_check,
};
/* PCIe configuration access */
@ -4022,6 +4105,9 @@ static int igc_probe(struct pci_dev *pdev,
if (err)
goto err_sw_init;
/* copy netdev features into list of user selectable features */
netdev->hw_features |= NETIF_F_NTUPLE;
/* MTU range: 68 - 9216 */
netdev->min_mtu = ETH_MIN_MTU;
netdev->max_mtu = MAX_STD_JUMBO_FRAME_SIZE;