diff options
| author | Bhargava Marreddy <bhargava.marreddy@broadcom.com> | 2026-04-06 21:04:14 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-04-12 21:09:36 +0300 |
| commit | dc85e8a51f5a6b8f8a3a8de0f89467ae797b5cd8 (patch) | |
| tree | 2404ef5479558648b7923e664a23b9ecfaf89ae1 | |
| parent | 169f6e8dd14957bbb66bf5bab40bf251a3950fc2 (diff) | |
| download | linux-dc85e8a51f5a6b8f8a3a8de0f89467ae797b5cd8.tar.xz | |
bng_en: implement ethtool pauseparam operations
Implement .get_pauseparam and .set_pauseparam to support flow control
configuration. This allows reporting and setting of autoneg, RX pause,
and TX pause states.
Signed-off-by: Bhargava Marreddy <bhargava.marreddy@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Link: https://patch.msgid.link/20260406180420.279470-5-bhargava.marreddy@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c b/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c index 6bb74a84ea03..424bf2d6721c 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c @@ -46,6 +46,67 @@ static void bnge_get_drvinfo(struct net_device *dev, strscpy(info->bus_info, pci_name(bd->pdev), sizeof(info->bus_info)); } +static void bnge_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct bnge_net *bn = netdev_priv(dev); + struct bnge_dev *bd = bn->bd; + + if (bd->phy_flags & BNGE_PHY_FL_NO_PAUSE) { + epause->autoneg = 0; + epause->rx_pause = 0; + epause->tx_pause = 0; + return; + } + + epause->autoneg = !!(bn->eth_link_info.autoneg & + BNGE_AUTONEG_FLOW_CTRL); + epause->rx_pause = !!(bn->eth_link_info.req_flow_ctrl & + BNGE_LINK_PAUSE_RX); + epause->tx_pause = !!(bn->eth_link_info.req_flow_ctrl & + BNGE_LINK_PAUSE_TX); +} + +static int bnge_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct bnge_ethtool_link_info old_elink_info, *elink_info; + struct bnge_net *bn = netdev_priv(dev); + struct bnge_dev *bd = bn->bd; + int rc = 0; + + if (!BNGE_PHY_CFG_ABLE(bd) || (bd->phy_flags & BNGE_PHY_FL_NO_PAUSE)) + return -EOPNOTSUPP; + + elink_info = &bn->eth_link_info; + old_elink_info = *elink_info; + + if (epause->autoneg) { + if (!(elink_info->autoneg & BNGE_AUTONEG_SPEED)) + return -EINVAL; + + elink_info->autoneg |= BNGE_AUTONEG_FLOW_CTRL; + } else { + if (elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL) + elink_info->force_link_chng = true; + elink_info->autoneg &= ~BNGE_AUTONEG_FLOW_CTRL; + } + + elink_info->req_flow_ctrl = 0; + if (epause->rx_pause) + elink_info->req_flow_ctrl |= BNGE_LINK_PAUSE_RX; + if (epause->tx_pause) + elink_info->req_flow_ctrl |= BNGE_LINK_PAUSE_TX; + + if (netif_running(dev)) { + rc = bnge_hwrm_set_pause(bn); + if (rc) + *elink_info = old_elink_info; + } + + return rc; +} + static const struct ethtool_ops bnge_ethtool_ops = { .cap_link_lanes_supported = 1, .get_link_ksettings = bnge_get_link_ksettings, @@ -53,6 +114,8 @@ static const struct ethtool_ops bnge_ethtool_ops = { .get_drvinfo = bnge_get_drvinfo, .get_link = bnge_get_link, .nway_reset = bnge_nway_reset, + .get_pauseparam = bnge_get_pauseparam, + .set_pauseparam = bnge_set_pauseparam, }; void bnge_set_ethtool_ops(struct net_device *dev) |