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qede: VF XDP support 

This introduces 2 changes needed for XDP to be supported for VFs:

 a. On VF-side, publish the NDO based on qed outputs

 b. On PF-side, request qed to allocate sufficient cids per-VF
    to allow the child vfs to support it

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mintz, Yuval 2017-06-04 13:31:09 +03:00 committed by David S. Miller
parent cbb8a12c08
commit e7b80dece8
1 changed files with 31 additions and 3 deletions
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34
drivers/net/ethernet/qlogic/qede/qede_main.c
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@ -580,6 +580,24 @@ static const struct net_device_ops qede_netdev_vf_ops = {
.ndo_features_check = qede_features_check,
};
static const struct net_device_ops qede_netdev_vf_xdp_ops = {
.ndo_open = qede_open,
.ndo_stop = qede_close,
.ndo_start_xmit = qede_start_xmit,
.ndo_set_rx_mode = qede_set_rx_mode,
.ndo_set_mac_address = qede_set_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = qede_change_mtu,
.ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
.ndo_set_features = qede_set_features,
.ndo_get_stats64 = qede_get_stats64,
.ndo_udp_tunnel_add = qede_udp_tunnel_add,
.ndo_udp_tunnel_del = qede_udp_tunnel_del,
.ndo_features_check = qede_features_check,
.ndo_xdp = qede_xdp,
};
/* -------------------------------------------------------------------------
* START OF PROBE / REMOVE
* -------------------------------------------------------------------------
@ -645,10 +663,14 @@ static void qede_init_ndev(struct qede_dev *edev)
ndev->watchdog_timeo = TX_TIMEOUT;
if (IS_VF(edev))
ndev->netdev_ops = &qede_netdev_vf_ops;
else
if (IS_VF(edev)) {
if (edev->dev_info.xdp_supported)
ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
else
ndev->netdev_ops = &qede_netdev_vf_ops;
} else {
ndev->netdev_ops = &qede_netdev_ops;
}
qede_set_ethtool_ops(ndev);
@ -846,6 +868,12 @@ static void qede_update_pf_params(struct qed_dev *cdev)
/* 64 rx + 64 tx + 64 XDP */
memset(&pf_params, 0, sizeof(struct qed_pf_params));
pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
/* Same for VFs - make sure they'll have sufficient connections
* to support XDP Tx queues.
*/
pf_params.eth_pf_params.num_vf_cons = 48;
#ifdef CONFIG_RFS_ACCEL
pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
#endif