sfc: Implement auto-negotiation

Add infrastructure for auto-negotiation of speed, duplex and flow
control.

When using 10Xpress, auto-negotiate flow control.  While we're
at it, clean up the code to warn when partner is not 10GBASE-T
capable.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c
index d4e203ddcf1c..fbe8e25a1ed5 100644
--- a/drivers/net/sfc/xfp_phy.c
+++ b/drivers/net/sfc/xfp_phy.c
@@ -155,6 +155,7 @@ static void xfp_phy_reconfigure(struct efx_nic *efx)
         efx->link_up = xfp_link_ok(efx);
         efx->link_speed = 10000;
         efx->link_fd = true;
+        efx->link_fc = efx->wanted_fc;
 }