Commit dc645dae authored by Jesse Brandeburg's avatar Jesse Brandeburg Committed by Jeff Kirsher
Browse files

i40e: implement VF stats NDO 



Implement the VF stats gathering via the kernel via ndo_get_vf_stats().
The driver will show per-VF stats in the output of the command:
ip -s link show dev <PF>

Testing Hints:
ip -s link show dev eth0
will return non-zero VF stats.
...
   vf 0 MAC 00:55:aa:00:55:aa, spoof checking on, link-state enable, trust off
   RX: bytes  packets  mcast   bcast
   128000     1000     104     104
   TX: bytes  packets
   128000     1000

Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 3df5b9a6

drivers/net/ethernet/intel/i40e/i40e_main.c

+1 −0
Original line number Diff line number Diff line
@@ -12870,6 +12870,7 @@ static const struct net_device_ops i40e_netdev_ops = { 
	.ndo_set_features	= i40e_set_features,

	.ndo_set_vf_mac		= i40e_ndo_set_vf_mac,

	.ndo_set_vf_vlan	= i40e_ndo_set_vf_port_vlan,

	.ndo_get_vf_stats	= i40e_get_vf_stats,

	.ndo_set_vf_rate	= i40e_ndo_set_vf_bw,

	.ndo_get_vf_config	= i40e_ndo_get_vf_config,

	.ndo_set_vf_link_state	= i40e_ndo_set_vf_link_state,

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

+48 −0
Original line number Diff line number Diff line
@@ -4524,3 +4524,51 @@ out: 
	clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);

	return ret;

}



/**

 * i40e_get_vf_stats - populate some stats for the VF

 * @netdev: the netdev of the PF

 * @vf_id: the host OS identifier (0-127)

 * @vf_stats: pointer to the OS memory to be initialized

 */

int i40e_get_vf_stats(struct net_device *netdev, int vf_id,

		      struct ifla_vf_stats *vf_stats)

{

	struct i40e_netdev_priv *np = netdev_priv(netdev);

	struct i40e_pf *pf = np->vsi->back;

	struct i40e_eth_stats *stats;

	struct i40e_vsi *vsi;

	struct i40e_vf *vf;



	/* validate the request */

	if (i40e_validate_vf(pf, vf_id))

		return -EINVAL;



	vf = &pf->vf[vf_id];

	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {

		dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);

		return -EBUSY;

	}



	vsi = pf->vsi[vf->lan_vsi_idx];

	if (!vsi)

		return -EINVAL;



	i40e_update_eth_stats(vsi);

	stats = &vsi->eth_stats;



	memset(vf_stats, 0, sizeof(*vf_stats));



	vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +

		stats->rx_multicast;

	vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +

		stats->tx_multicast;

	vf_stats->rx_bytes   = stats->rx_bytes;

	vf_stats->tx_bytes   = stats->tx_bytes;

	vf_stats->broadcast  = stats->rx_broadcast;

	vf_stats->multicast  = stats->rx_multicast;

	vf_stats->rx_dropped = stats->rx_discards;

	vf_stats->tx_dropped = stats->tx_discards;



	return 0;

}

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h

+2 −0
Original line number Diff line number Diff line
@@ -138,5 +138,7 @@ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable); 


void i40e_vc_notify_link_state(struct i40e_pf *pf);

void i40e_vc_notify_reset(struct i40e_pf *pf);

int i40e_get_vf_stats(struct net_device *netdev, int vf_id,

		      struct ifla_vf_stats *vf_stats);



#endif /* _I40E_VIRTCHNL_PF_H_ */

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