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authorEdward Cree <ecree@solarflare.com>2020-06-29 16:35:25 +0300
committerDavid S. Miller <davem@davemloft.net>2020-06-30 03:37:48 +0300
commit53e1f21abd89bde46ed30061c58370b8a079f6f5 (patch)
tree8d9a5a10aefeaa99abeeebc070ba79945e18426b /drivers/net/ethernet/sfc/efx_common.c
parent5671dd5565d443185cdc325e8bea0cdd77f3911b (diff)
downloadlinux-53e1f21abd89bde46ed30061c58370b8a079f6f5.tar.xz
sfc: commonise FC advertising
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/efx_common.c')
-rw-r--r--drivers/net/ethernet/sfc/efx_common.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c
index 1799ff9a45d9..02459d90afb0 100644
--- a/drivers/net/ethernet/sfc/efx_common.c
+++ b/drivers/net/ethernet/sfc/efx_common.c
@@ -383,6 +383,30 @@ static void efx_stop_datapath(struct efx_nic *efx)
*
**************************************************************************/
+/* Equivalent to efx_link_set_advertising with all-zeroes, except does not
+ * force the Autoneg bit on.
+ */
+void efx_link_clear_advertising(struct efx_nic *efx)
+{
+ bitmap_zero(efx->link_advertising, __ETHTOOL_LINK_MODE_MASK_NBITS);
+ efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
+}
+
+void efx_link_set_wanted_fc(struct efx_nic *efx, u8 wanted_fc)
+{
+ efx->wanted_fc = wanted_fc;
+ if (efx->link_advertising[0]) {
+ if (wanted_fc & EFX_FC_RX)
+ efx->link_advertising[0] |= (ADVERTISED_Pause |
+ ADVERTISED_Asym_Pause);
+ else
+ efx->link_advertising[0] &= ~(ADVERTISED_Pause |
+ ADVERTISED_Asym_Pause);
+ if (wanted_fc & EFX_FC_TX)
+ efx->link_advertising[0] ^= ADVERTISED_Asym_Pause;
+ }
+}
+
static void efx_start_port(struct efx_nic *efx)
{
netif_dbg(efx, ifup, efx->net_dev, "start port\n");