net/sfc: use default FEC mode

All FEC modes are supported and allowed, but none are explicitly
requested.

This effectively means that FEC mode is determined solely form cable
requirements and link partner capabilities / requirements.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>

diff --git a/drivers/net/sfc/sfc_port.c b/drivers/net/sfc/sfc_port.c
index 5cc3ad7..5384dbb 100644 (file)
--- a/drivers/net/sfc/sfc_port.c
+++ b/drivers/net/sfc/sfc_port.c
@@ -192,6 +192,16 @@ sfc_port_start(struct sfc_adapter *sa)
        SFC_ASSERT((port->phy_adv_cap & phy_pause_caps) == 0);
        phy_adv_cap = port->phy_adv_cap | (phy_adv_cap & phy_pause_caps);
 
+       /*
+        * No controls for FEC yet. Use default FEC mode.
+        * I.e. advertise everything supported (*_FEC=1), but do not request
+        * anything explicitly (*_FEC_REQUESTED=0).
+        */
+       phy_adv_cap |= port->phy_adv_cap_mask &
+               (1u << EFX_PHY_CAP_BASER_FEC |
+                1u << EFX_PHY_CAP_RS_FEC |
+                1u << EFX_PHY_CAP_25G_BASER_FEC);
+
        sfc_log_init(sa, "set phy adv caps to %#x", phy_adv_cap);
        rc = efx_phy_adv_cap_set(sa->nic, phy_adv_cap);
        if (rc != 0)