[PATCH net-next v16 7/7] r8169: add get_channel support for ethtool
From: javen
Date: Thu Oct 08 2026 - 03:03:33 EST
From: Javen Xu <javen_xu@xxxxxxxxxxxxxx>
Add get_channel support for ethtool.
In multi-vector mode, it reports the active RX channel count and a
single TX channel. Additionly, it reports one other channel to account
for the dedicated link-change interrupt vector.
In single-vector mode, where RX, TX, link-change events share the same
interrupt, it reports a single combined channel.
Signed-off-by: Javen Xu <javen_xu@xxxxxxxxxxxxxx>
---
Changes in v11:
- new file, no change
Changes in v12:
- no changes
Changes in v13:
- no changes
Changes in v14:
- no changes
Changes in v15:
- no changes
Changes in v16:
- modify commit message
- add other msix count in get_channel function
---
drivers/net/ethernet/realtek/r8169_main.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index de0c860328ba..88354e7570f0 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -6741,6 +6741,24 @@ static void r8169_init_napi(struct rtl8169_private *tp)
}
}
+static void rtl8169_get_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (tp->irq_nvecs > 1) {
+ ch->max_rx = tp->hw_supp_num_rx_queues;
+ ch->max_tx = 1;
+ ch->max_other = 1;
+ ch->rx_count = tp->num_rx_rings;
+ ch->tx_count = 1;
+ ch->other_count = 1;
+ } else {
+ ch->max_combined = 1;
+ ch->combined_count = 1;
+ }
+}
+
static const struct ethtool_ops rtl8169_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
@@ -6759,6 +6777,7 @@ static const struct ethtool_ops rtl8169_ethtool_ops = {
.nway_reset = rtl8169_nway_reset,
.get_eee = rtl8169_get_eee,
.set_eee = rtl8169_set_eee,
+ .get_channels = rtl8169_get_channels,
.get_link_ksettings = rtl8169_get_link_ksettings,
.set_link_ksettings = rtl8169_set_link_ksettings,
.get_ringparam = rtl8169_get_ringparam,
--
2.43.0