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bng_en: implement ethtool pauseparam operations

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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>
This commit is contained in:
Bhargava Marreddy 2026-04-06 23:34:14 +05:30 committed by Jakub Kicinski
parent 169f6e8dd1
commit dc85e8a51f
1 changed files with 63 additions and 0 deletions
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63
drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c
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@ -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)