sfc: support rx-fcs and rx-all

Ethernet FCS inclusion (rx-fcs) is supported on EF10 NICs, conditional on
 a firmware capability bit (MC_CMD_GET_CAPABILITIES_OUT_RX_INCLUDE_FCS).
To receive frames with bad FCS (rx-all) we just don't return the discard
 flag EFX_RX_PKT_DISCARD from efx_ef10_handle_rx_event_errors() or
 efx_farch_handle_rx_not_ok().

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Cree 2017-10-31 14:29:47 +00:00 committed by David S. Miller
parent e0337f92f6
commit 6978729fbd
4 changed files with 30 additions and 8 deletions

View file

@ -2315,8 +2315,11 @@ static int efx_set_features(struct net_device *net_dev, netdev_features_t data)
return rc;
}
/* If Rx VLAN filter is changed, update filters via mac_reconfigure */
if ((net_dev->features ^ data) & NETIF_F_HW_VLAN_CTAG_FILTER) {
/* If Rx VLAN filter is changed, update filters via mac_reconfigure.
* If rx-fcs is changed, mac_reconfigure updates that too.
*/
if ((net_dev->features ^ data) & (NETIF_F_HW_VLAN_CTAG_FILTER |
NETIF_F_RXFCS)) {
/* efx_set_rx_mode() will schedule MAC work to update filters
* when a new features are finally set in net_dev.
*/
@ -3242,7 +3245,7 @@ static int efx_pci_probe_post_io(struct efx_nic *efx)
/* Determine netdevice features */
net_dev->features |= (efx->type->offload_features | NETIF_F_SG |
NETIF_F_TSO | NETIF_F_RXCSUM);
NETIF_F_TSO | NETIF_F_RXCSUM | NETIF_F_RXALL);
if (efx->type->offload_features & (NETIF_F_IPV6_CSUM | NETIF_F_HW_CSUM))
net_dev->features |= NETIF_F_TSO6;
/* Check whether device supports TSO */
@ -3253,7 +3256,10 @@ static int efx_pci_probe_post_io(struct efx_nic *efx)
NETIF_F_HIGHDMA | NETIF_F_ALL_TSO |
NETIF_F_RXCSUM);
net_dev->hw_features = net_dev->features & ~efx->fixed_features;
net_dev->hw_features |= net_dev->features & ~efx->fixed_features;
/* Disable receiving frames with bad FCS, by default. */
net_dev->features &= ~NETIF_F_RXALL;
/* Disable VLAN filtering by default. It may be enforced if
* the feature is fixed (i.e. VLAN filters are required to