sfc: Enable autonegotiated flow-control by default if supported

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

diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 9d009c4..1e78585 100644 (file)
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -909,6 +909,8 @@ static int falcon_probe_port(struct efx_nic *efx)
                efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
        else
                efx->wanted_fc = EFX_FC_RX;
+       if (efx->mdio.mmds & MDIO_DEVS_AN)
+               efx->wanted_fc |= EFX_FC_AUTO;
 
        /* Allocate buffer for stats */
        rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer,

diff --git a/drivers/net/sfc/mcdi_phy.c b/drivers/net/sfc/mcdi_phy.c
index eb694af..d87e74d 100644 (file)
--- a/drivers/net/sfc/mcdi_phy.c
+++ b/drivers/net/sfc/mcdi_phy.c
@@ -381,6 +381,18 @@ static int efx_mcdi_phy_probe(struct efx_nic *efx)
         * but by convention we don't */
        efx->loopback_modes &= ~(1 << LOOPBACK_NONE);
 
+       /* Set the initial link mode */
+       efx_mcdi_phy_decode_link(
+               efx, &efx->link_state,
+               MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
+               MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
+               MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
+
+       /* Default to Autonegotiated flow control if the PHY supports it */
+       efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
+       if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
+               efx->wanted_fc |= EFX_FC_AUTO;
+
        return 0;
 
 fail:
@@ -436,7 +448,7 @@ void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa)
 
        /* The link partner capabilities are only relevent if the
         * link supports flow control autonegotiation */
-       if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
+       if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
                return;
 
        /* If flow control autoneg is supported and enabled, then fine */

diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c
index 0e4c13a..f6a5389 100644 (file)
--- a/drivers/net/sfc/siena.c
+++ b/drivers/net/sfc/siena.c
@@ -106,16 +106,11 @@ static int siena_probe_port(struct efx_nic *efx)
        efx->mdio.mdio_read = siena_mdio_read;
        efx->mdio.mdio_write = siena_mdio_write;
 
-       /* Fill out MDIO structure and loopback modes */
+       /* Fill out MDIO structure, loopback modes, and initial link state */
        rc = efx->phy_op->probe(efx);
        if (rc != 0)
                return rc;
 
-       /* Initial assumption */
-       efx->link_state.speed = 10000;
-       efx->link_state.fd = true;
-       efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
-
        /* Allocate buffer for stats */
        rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer,
                                  MC_CMD_MAC_NSTATS * sizeof(u64));