[dpdk-dev] [PATCH] net/sfc: use default FEC mode

[Andrew Rybchenko]

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 <arybche...@solarflare.com>
---
 drivers/net/sfc/sfc_port.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/sfc/sfc_port.c b/drivers/net/sfc/sfc_port.c
index fd267e1..1391841 100644
--- a/drivers/net/sfc/sfc_port.c
+++ b/drivers/net/sfc/sfc_port.c
@@ -155,6 +155,16 @@ 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)
-- 
2.7.4