diff options
| author |   Edward Cree <ecree@solarflare.com> | 2020-07-02 17:27:35 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-02 14:47:39 -0700 |
| commit | af3c38d3fb7c3003842974b1de454ecebbd8bc83 (patch) | |
| tree | b8db8a4a6138ad6f8bf9107ada30dcbcbfd149ce /drivers/net/ethernet/sfc/ef10.c | |
| parent | xen-netfront: remove redundant assignment to variable 'act' (diff) | |
| download | linux-af3c38d3fb7c3003842974b1de454ecebbd8bc83.tar.xz linux-af3c38d3fb7c3003842974b1de454ecebbd8bc83.zip | |
sfc: support setting MTU even if not privileged to configure MAC fully
Unprivileged functions (such as VFs) may set their MTU by use of the
'control' field of MC_CMD_SET_MAC_EXT, as used in efx_mcdi_set_mtu().
If calling efx_ef10_mac_reconfigure() from efx_change_mtu(), and the
NIC supports the above (SET_MAC_ENHANCED capability), use it rather
than efx_mcdi_set_mac().
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/ef10.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 5faf2f0e4d62..a51925b45fc7 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -3306,18 +3306,15 @@ static int efx_ef10_set_mac_address(struct efx_nic *efx) return rc; } -static int efx_ef10_mac_reconfigure(struct efx_nic *efx) +static int efx_ef10_mac_reconfigure(struct efx_nic *efx, bool mtu_only) { - efx_mcdi_filter_sync_rx_mode(efx); - - return efx_mcdi_set_mac(efx); -} + WARN_ON(!mutex_is_locked(&efx->mac_lock)); -static int efx_ef10_mac_reconfigure_vf(struct efx_nic *efx) -{ efx_mcdi_filter_sync_rx_mode(efx); - return 0; + if (mtu_only && efx_has_cap(efx, SET_MAC_ENHANCED)) + return efx_mcdi_set_mtu(efx); + return efx_mcdi_set_mac(efx); } static int efx_ef10_start_bist(struct efx_nic *efx, u32 bist_type) @@ -4038,7 +4035,7 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = { .stop_stats = efx_port_dummy_op_void, .set_id_led = efx_mcdi_set_id_led, .push_irq_moderation = efx_ef10_push_irq_moderation, - .reconfigure_mac = efx_ef10_mac_reconfigure_vf, + .reconfigure_mac = efx_ef10_mac_reconfigure, .check_mac_fault = efx_mcdi_mac_check_fault, .reconfigure_port = efx_mcdi_port_reconfigure, .get_wol = efx_ef10_get_wol_vf, |