Commit bf7bb7b4 authored by Jon Kohler's avatar Jon Kohler Committed by Jakub Kicinski
Browse files

enic: add ethtool get_channel support 



Add .get_channel to enic_ethtool_ops to enable basic ethtool -l
support to get the current channel configuration.

Note that the driver does not support dynamically changing queue
configuration, so .set_channel is intentionally unused. Instead, users
should use Cisco's hardware management tools (UCSM/IMC) to modify
virtual interface card configuration out of band.

Signed-off-by: default avatarJon Kohler <jon@nutanix.com>
Link: https://patch.msgid.link/20240627202013.2398217-1-jon@nutanix.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent db2dede2

drivers/net/ethernet/cisco/enic/enic_ethtool.c

+23 −0
Original line number Diff line number Diff line
@@ -608,6 +608,28 @@ static int enic_get_ts_info(struct net_device *netdev, 
	return 0;

}



static void enic_get_channels(struct net_device *netdev,

			      struct ethtool_channels *channels)

{

	struct enic *enic = netdev_priv(netdev);



	switch (vnic_dev_get_intr_mode(enic->vdev)) {

	case VNIC_DEV_INTR_MODE_MSIX:

		channels->max_rx = ENIC_RQ_MAX;

		channels->max_tx = ENIC_WQ_MAX;

		channels->rx_count = enic->rq_count;

		channels->tx_count = enic->wq_count;

		break;

	case VNIC_DEV_INTR_MODE_MSI:

	case VNIC_DEV_INTR_MODE_INTX:

		channels->max_combined = 1;

		channels->combined_count = 1;

		break;

	default:

		break;

	}

}



static const struct ethtool_ops enic_ethtool_ops = {

	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |

				     ETHTOOL_COALESCE_USE_ADAPTIVE_RX |
@@ -632,6 +654,7 @@ static const struct ethtool_ops enic_ethtool_ops = { 
	.set_rxfh = enic_set_rxfh,

	.get_link_ksettings = enic_get_ksettings,

	.get_ts_info = enic_get_ts_info,

	.get_channels = enic_get_channels,

};



void enic_set_ethtool_ops(struct net_device *netdev)