Commit 7267aa6d authored by Edward Cree's avatar Edward Cree Committed by Jakub Kicinski
Browse files

sfc: implement ethtool get/set RX ring size for EF100 reps 



It's not truly a ring, but the maximum length of the list of queued RX
 SKBs is analogous to an RX ring size, so use that API to configure it.

Signed-off-by: default avatarEdward Cree <ecree.xilinx@gmail.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent e37f3b15

drivers/net/ethernet/sfc/ef100_rep.c

+27 −0
Original line number Diff line number Diff line
@@ -150,10 +150,37 @@ static void efx_ef100_rep_ethtool_set_msglevel(struct net_device *net_dev, 
	efv->msg_enable = msg_enable;

}



static void efx_ef100_rep_ethtool_get_ringparam(struct net_device *net_dev,

						struct ethtool_ringparam *ring,

						struct kernel_ethtool_ringparam *kring,

						struct netlink_ext_ack *ext_ack)

{

	struct efx_rep *efv = netdev_priv(net_dev);



	ring->rx_max_pending = U32_MAX;

	ring->rx_pending = efv->rx_pring_size;

}



static int efx_ef100_rep_ethtool_set_ringparam(struct net_device *net_dev,

					       struct ethtool_ringparam *ring,

					       struct kernel_ethtool_ringparam *kring,

					       struct netlink_ext_ack *ext_ack)

{

	struct efx_rep *efv = netdev_priv(net_dev);



	if (ring->rx_mini_pending || ring->rx_jumbo_pending || ring->tx_pending)

		return -EINVAL;



	efv->rx_pring_size = ring->rx_pending;

	return 0;

}



static const struct ethtool_ops efx_ef100_rep_ethtool_ops = {

	.get_drvinfo		= efx_ef100_rep_get_drvinfo,

	.get_msglevel		= efx_ef100_rep_ethtool_get_msglevel,

	.set_msglevel		= efx_ef100_rep_ethtool_set_msglevel,

	.get_ringparam		= efx_ef100_rep_ethtool_get_ringparam,

	.set_ringparam		= efx_ef100_rep_ethtool_set_ringparam,

};



static struct efx_rep *efx_ef100_rep_create_netdev(struct efx_nic *efx,