Merge remote-tracking branches 'asoc/topic/ac97', 'asoc/topic/ac97-mfd', 'asoc/topic...

[mirror_ubuntu-focal-kernel.git] / drivers / net / ethernet / aquantia / atlantic / aq_ethtool.c

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
index 3eab4089e91a9d0b677797838d21877477e193ed..d5e99b46887061a216652ca150897bba49f16223 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
@@ -221,6 +221,69 @@ static int aq_ethtool_get_rxnfc(struct net_device *ndev,
        return err;
 }
 
+int aq_ethtool_get_coalesce(struct net_device *ndev,
+                           struct ethtool_coalesce *coal)
+{
+       struct aq_nic_s *aq_nic = netdev_priv(ndev);
+       struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+
+       if (cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON ||
+           cfg->itr == AQ_CFG_INTERRUPT_MODERATION_AUTO) {
+               coal->rx_coalesce_usecs = cfg->rx_itr;
+               coal->tx_coalesce_usecs = cfg->tx_itr;
+               coal->rx_max_coalesced_frames = 0;
+               coal->tx_max_coalesced_frames = 0;
+       } else {
+               coal->rx_coalesce_usecs = 0;
+               coal->tx_coalesce_usecs = 0;
+               coal->rx_max_coalesced_frames = 1;
+               coal->tx_max_coalesced_frames = 1;
+       }
+       return 0;
+}
+
+int aq_ethtool_set_coalesce(struct net_device *ndev,
+                           struct ethtool_coalesce *coal)
+{
+       struct aq_nic_s *aq_nic = netdev_priv(ndev);
+       struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+
+       /* This is not yet supported
+        */
+       if (coal->use_adaptive_rx_coalesce || coal->use_adaptive_tx_coalesce)
+               return -EOPNOTSUPP;
+
+       /* Atlantic only supports timing based coalescing
+        */
+       if (coal->rx_max_coalesced_frames > 1 ||
+           coal->rx_coalesce_usecs_irq ||
+           coal->rx_max_coalesced_frames_irq)
+               return -EOPNOTSUPP;
+
+       if (coal->tx_max_coalesced_frames > 1 ||
+           coal->tx_coalesce_usecs_irq ||
+           coal->tx_max_coalesced_frames_irq)
+               return -EOPNOTSUPP;
+
+       /* We do not support frame counting. Check this
+        */
+       if (!(coal->rx_max_coalesced_frames == !coal->rx_coalesce_usecs))
+               return -EOPNOTSUPP;
+       if (!(coal->tx_max_coalesced_frames == !coal->tx_coalesce_usecs))
+               return -EOPNOTSUPP;
+
+       if (coal->rx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX ||
+           coal->tx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX)
+               return -EINVAL;
+
+       cfg->itr = AQ_CFG_INTERRUPT_MODERATION_ON;
+
+       cfg->rx_itr = coal->rx_coalesce_usecs;
+       cfg->tx_itr = coal->tx_coalesce_usecs;
+
+       return aq_nic_update_interrupt_moderation_settings(aq_nic);
+}
+
 const struct ethtool_ops aq_ethtool_ops = {
        .get_link            = aq_ethtool_get_link,
        .get_regs_len        = aq_ethtool_get_regs_len,
@@ -235,4 +298,6 @@ const struct ethtool_ops aq_ethtool_ops = {
        .get_ethtool_stats   = aq_ethtool_stats,
        .get_link_ksettings  = aq_ethtool_get_link_ksettings,
        .set_link_ksettings  = aq_ethtool_set_link_ksettings,
+       .get_coalesce        = aq_ethtool_get_coalesce,
+       .set_coalesce        = aq_ethtool_set_coalesce,
 };