diff options
| author | Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> | 2011-04-28 13:48:18 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-29 21:59:59 +0200 |
| commit | f94bc1e70281c5a587049015af8f3e024d45ad66 (patch) | |
| tree | f221f5ea160c98f30c4ef2ff23e776f0c408600f /drivers/net/qlcnic/qlcnic_ethtool.c | |
| parent | ipv4, ipv6, bonding: Restore control over number of peer notifications (diff) | |
| download | linux-f94bc1e70281c5a587049015af8f3e024d45ad66.tar.xz linux-f94bc1e70281c5a587049015af8f3e024d45ad66.zip | |
qlcnic: support rcv ring configuration through ethtool
o Support ethtool command ETHTOOL_GCHANNELS and ETHTOOL_SCHANNELS.
o Number of rcv rings configuration depend upon number of msix vector.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qlcnic/qlcnic_ethtool.c')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_ethtool.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c index de65847f3559..8db1d1983cfe 100644 --- a/drivers/net/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/qlcnic/qlcnic_ethtool.c @@ -474,6 +474,39 @@ qlcnic_set_ringparam(struct net_device *dev, return qlcnic_reset_context(adapter); } +static void qlcnic_get_channels(struct net_device *dev, + struct ethtool_channels *channel) +{ + struct qlcnic_adapter *adapter = netdev_priv(dev); + + channel->max_rx = rounddown_pow_of_two(min_t(int, + adapter->max_rx_ques, num_online_cpus())); + channel->max_tx = adapter->max_tx_ques; + + channel->rx_count = adapter->max_sds_rings; + channel->tx_count = adapter->max_tx_ques; +} + +static int qlcnic_set_channels(struct net_device *dev, + struct ethtool_channels *channel) +{ + struct qlcnic_adapter *adapter = netdev_priv(dev); + int err; + + if (channel->other_count || channel->combined_count || + channel->tx_count != channel->max_tx) + return -EINVAL; + + err = qlcnic_validate_max_rss(dev, channel->max_rx, channel->rx_count); + if (err) + return err; + + err = qlcnic_set_max_rss(adapter, channel->rx_count); + netdev_info(dev, "allocated 0x%x sds rings\n", + adapter->max_sds_rings); + return err; +} + static void qlcnic_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) @@ -949,6 +982,8 @@ const struct ethtool_ops qlcnic_ethtool_ops = { .get_eeprom = qlcnic_get_eeprom, .get_ringparam = qlcnic_get_ringparam, .set_ringparam = qlcnic_set_ringparam, + .get_channels = qlcnic_get_channels, + .set_channels = qlcnic_set_channels, .get_pauseparam = qlcnic_get_pauseparam, .set_pauseparam = qlcnic_set_pauseparam, .get_wol = qlcnic_get_wol, |