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

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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: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Edward Cree 2022-07-28 19:57:52 +01:00 committed by Jakub Kicinski
parent e37f3b1561
commit 7267aa6d99
1 changed files with 27 additions and 0 deletions
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27
drivers/net/ethernet/sfc/ef100_rep.c
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@ -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,