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ice: let core reject the unsupported coalescing parameters

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Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
As a side effect of these changes the info message about
the bad parameter will no longer be printed. We also
always reject the tx_coalesce_usecs_high param, even
if the target queue pair does not have a TX queue.
Error code changes from EINVAL to EOPNOTSUPP.

v2: allow adaptive TX
v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2020-03-04 21:15:38 -08:00 committed by David S. Miller
parent 60d339641a
commit 4a80a18338
1 changed files with 3 additions and 56 deletions
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59
drivers/net/ethernet/intel/ice/ice_ethtool.c
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@ -3452,12 +3452,6 @@ ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec,
break;
case ICE_TX_CONTAINER:
if (ec->tx_coalesce_usecs_high) {
netdev_info(vsi->netdev, "setting %s-usecs-high is not supported\n",
c_type_str);
return -EINVAL;
}
use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
coalesce_usecs = ec->tx_coalesce_usecs;
@ -3533,53 +3527,6 @@ ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
return 0;
}
/**
* ice_is_coalesce_param_invalid - check for unsupported coalesce parameters
* @netdev: pointer to the netdev associated with this query
* @ec: ethtool structure to fill with driver's coalesce settings
*
* Print netdev info if driver doesn't support one of the parameters
* and return error. When any parameters will be implemented, remove only
* this parameter from param array.
*/
static int
ice_is_coalesce_param_invalid(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct ice_ethtool_not_used {
u32 value;
const char *name;
} param[] = {
{ec->stats_block_coalesce_usecs, "stats-block-usecs"},
{ec->rate_sample_interval, "sample-interval"},
{ec->pkt_rate_low, "pkt-rate-low"},
{ec->pkt_rate_high, "pkt-rate-high"},
{ec->rx_max_coalesced_frames, "rx-frames"},
{ec->rx_coalesce_usecs_irq, "rx-usecs-irq"},
{ec->rx_max_coalesced_frames_irq, "rx-frames-irq"},
{ec->tx_max_coalesced_frames, "tx-frames"},
{ec->tx_coalesce_usecs_irq, "tx-usecs-irq"},
{ec->tx_max_coalesced_frames_irq, "tx-frames-irq"},
{ec->rx_coalesce_usecs_low, "rx-usecs-low"},
{ec->rx_max_coalesced_frames_low, "rx-frames-low"},
{ec->tx_coalesce_usecs_low, "tx-usecs-low"},
{ec->tx_max_coalesced_frames_low, "tx-frames-low"},
{ec->rx_max_coalesced_frames_high, "rx-frames-high"},
{ec->tx_max_coalesced_frames_high, "tx-frames-high"}
};
int i;
for (i = 0; i < ARRAY_SIZE(param); i++) {
if (param[i].value) {
netdev_info(netdev, "Setting %s not supported\n",
param[i].name);
return -EINVAL;
}
}
return 0;
}
/**
* ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs
* @netdev: netdev used for print
@ -3620,9 +3567,6 @@ __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
struct ice_netdev_priv *np = netdev_priv(netdev);
struct ice_vsi *vsi = np->vsi;
if (ice_is_coalesce_param_invalid(netdev, ec))
return -EINVAL;
if (q_num < 0) {
struct ice_q_vector *q_vector = vsi->q_vectors[0];
int v_idx;
@ -3817,6 +3761,9 @@ ice_get_module_eeprom(struct net_device *netdev,
}
static const struct ethtool_ops ice_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_USE_ADAPTIVE |
ETHTOOL_COALESCE_RX_USECS_HIGH,
.get_link_ksettings = ice_get_link_ksettings,
.set_link_ksettings = ice_set_link_ksettings,
.get_drvinfo = ice_get_drvinfo,