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nfp: implement netpoll ndo (thus enabling netconsole)

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NFP NAPI handling will only complete the TXed packets when called
with budget of 0, implement ndo_poll_controller by scheduling NAPI
on all TX queues.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2018-06-29 17:04:36 -07:00 committed by David S. Miller
parent 18aa5b180f
commit 670b5274ff
1 changed files with 18 additions and 0 deletions
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18
drivers/net/ethernet/netronome/nfp/nfp_net_common.c
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@ -3115,6 +3115,21 @@ nfp_net_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
return nfp_net_reconfig_mbox(nn, NFP_NET_CFG_MBOX_CMD_CTAG_FILTER_KILL);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void nfp_net_netpoll(struct net_device *netdev)
{
struct nfp_net *nn = netdev_priv(netdev);
int i;
/* nfp_net's NAPIs are statically allocated so even if there is a race
* with reconfig path this will simply try to schedule some disabled
* NAPI instances.
*/
for (i = 0; i < nn->dp.num_stack_tx_rings; i++)
napi_schedule_irqoff(&nn->r_vecs[i].napi);
}
#endif
static void nfp_net_stat64(struct net_device *netdev,
struct rtnl_link_stats64 *stats)
{
@ -3482,6 +3497,9 @@ const struct net_device_ops nfp_net_netdev_ops = {
.ndo_get_stats64 = nfp_net_stat64,
.ndo_vlan_rx_add_vid = nfp_net_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = nfp_net_vlan_rx_kill_vid,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = nfp_net_netpoll,
#endif
.ndo_set_vf_mac = nfp_app_set_vf_mac,
.ndo_set_vf_vlan = nfp_app_set_vf_vlan,
.ndo_set_vf_spoofchk = nfp_app_set_vf_spoofchk,