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author | Paul Greenwalt <paul.greenwalt@intel.com> | 2019-06-26 02:20:12 -0700 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-07-31 10:23:04 -0700 |
commit | 5a056cd7ead2b72b00fea8a6819fb93eeb12e313 (patch) | |
tree | 28003857a709ece4fb4debe8ba52afe589bbf1cd | |
parent | 6a7ce95d752efa86a1a383385d4f8035c224dc3d (diff) | |
download | linux-stable-5a056cd7ead2b72b00fea8a6819fb93eeb12e313.tar.gz linux-stable-5a056cd7ead2b72b00fea8a6819fb93eeb12e313.tar.bz2 linux-stable-5a056cd7ead2b72b00fea8a6819fb93eeb12e313.zip |
ice: add lp_advertising flow control support
Add support for reporting link partner advertising when
ETHTOOL_GLINKSETTINGS defined. Get pause param reports the Tx/Rx
pause configured, and then ethtool issues ETHTOOL_GSET ioctl and
ice_get_settings_link_up reports the negotiated Tx/Rx pause. Negotiated
pause frame report per IEEE 802.3-2005 table 288-3.
$ ethtool --show-pause ens6f0
Pause parameters for ens6f0:
Autonegotiate: on
RX: on
TX: on
RX negotiated: on
TX negotiated: on
$ ethtool ens6f0
Settings for ens6f0:
Supported ports: [ FIBRE ]
Supported link modes: 25000baseCR/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: None BaseR RS
Advertised link modes: 25000baseCR/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: None BaseR RS
Link partner advertised link modes: Not reported
Link partner advertised pause frame use: Symmetric
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 25000Mb/s
Duplex: Full
Port: Direct Attach Copper
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
When ETHTOOL_GLINKSETTINGS is not defined, get pause param reports the
negotiated Tx/Rx pause.
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice_ethtool.c | 104 |
1 files changed, 72 insertions, 32 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index 52083a63dee6..d3ba535bd65a 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -1716,6 +1716,7 @@ ice_get_settings_link_up(struct ethtool_link_ksettings *ks, struct net_device *netdev) { struct ice_netdev_priv *np = netdev_priv(netdev); + struct ice_port_info *pi = np->vsi->port_info; struct ethtool_link_ksettings cap_ksettings; struct ice_link_status *link_info; struct ice_vsi *vsi = np->vsi; @@ -2040,6 +2041,33 @@ ice_get_settings_link_up(struct ethtool_link_ksettings *ks, break; } ks->base.duplex = DUPLEX_FULL; + + if (link_info->an_info & ICE_AQ_AN_COMPLETED) + ethtool_link_ksettings_add_link_mode(ks, lp_advertising, + Autoneg); + + /* Set flow control negotiated Rx/Tx pause */ + switch (pi->fc.current_mode) { + case ICE_FC_FULL: + ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); + break; + case ICE_FC_TX_PAUSE: + ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); + ethtool_link_ksettings_add_link_mode(ks, lp_advertising, + Asym_Pause); + break; + case ICE_FC_RX_PAUSE: + ethtool_link_ksettings_add_link_mode(ks, lp_advertising, + Asym_Pause); + break; + case ICE_FC_PFC: + /* fall through */ + default: + ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause); + ethtool_link_ksettings_del_link_mode(ks, lp_advertising, + Asym_Pause); + break; + } } /** @@ -2078,9 +2106,12 @@ ice_get_link_ksettings(struct net_device *netdev, struct ice_aqc_get_phy_caps_data *caps; struct ice_link_status *hw_link_info; struct ice_vsi *vsi = np->vsi; + enum ice_status status; + int err = 0; ethtool_link_ksettings_zero_link_mode(ks, supported); ethtool_link_ksettings_zero_link_mode(ks, advertising); + ethtool_link_ksettings_zero_link_mode(ks, lp_advertising); hw_link_info = &vsi->port_info->phy.link_info; /* set speed and duplex */ @@ -2125,48 +2156,36 @@ ice_get_link_ksettings(struct net_device *netdev, /* flow control is symmetric and always supported */ ethtool_link_ksettings_add_link_mode(ks, supported, Pause); - switch (vsi->port_info->fc.req_mode) { - case ICE_FC_FULL: + caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL); + if (!caps) + return -ENOMEM; + + status = ice_aq_get_phy_caps(vsi->port_info, false, + ICE_AQC_REPORT_SW_CFG, caps, NULL); + if (status) { + err = -EIO; + goto done; + } + + /* Set the advertised flow control based on the PHY capability */ + if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) && + (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) { ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); - break; - case ICE_FC_TX_PAUSE: ethtool_link_ksettings_add_link_mode(ks, advertising, Asym_Pause); - break; - case ICE_FC_RX_PAUSE: + } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) { + ethtool_link_ksettings_add_link_mode(ks, advertising, + Asym_Pause); + } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) { ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); ethtool_link_ksettings_add_link_mode(ks, advertising, Asym_Pause); - break; - case ICE_FC_PFC: - default: + } else { ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); ethtool_link_ksettings_del_link_mode(ks, advertising, Asym_Pause); - break; } - caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL); - if (!caps) - goto done; - - if (ice_aq_get_phy_caps(vsi->port_info, false, ICE_AQC_REPORT_TOPO_CAP, - caps, NULL)) - netdev_info(netdev, "Get phy capability failed.\n"); - - /* Set supported FEC modes based on PHY capability */ - ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); - - if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || - caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN) - ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); - if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) - ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); - - if (ice_aq_get_phy_caps(vsi->port_info, false, ICE_AQC_REPORT_SW_CFG, - caps, NULL)) - netdev_info(netdev, "Get phy capability failed.\n"); - /* Set advertised FEC modes based on PHY capability */ ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); @@ -2178,9 +2197,25 @@ ice_get_link_ksettings(struct net_device *netdev, caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); + status = ice_aq_get_phy_caps(vsi->port_info, false, + ICE_AQC_REPORT_TOPO_CAP, caps, NULL); + if (status) { + err = -EIO; + goto done; + } + + /* Set supported FEC modes based on PHY capability */ + ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); + + if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || + caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN) + ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); + if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) + ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); + done: devm_kfree(&vsi->back->pdev->dev, caps); - return 0; + return err; } /** @@ -2763,6 +2798,11 @@ static int ice_nway_reset(struct net_device *netdev) * ice_get_pauseparam - Get Flow Control status * @netdev: network interface device structure * @pause: ethernet pause (flow control) parameters + * + * Get requested flow control status from PHY capability. + * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which + * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report + * the negotiated Rx/Tx pause via lp_advertising. */ static void ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) |