diff options
| author | Rishi Panjwani <rpanjwan@qca.qualcomm.com> | 2011-12-27 14:28:00 -0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2012-01-02 18:23:10 +0200 |
| commit | bc48ad31c5814feb4ff8faca9a8d422279593cb1 (patch) | |
| tree | 620e41df17adefa11fec9d8c2c11541c2d4ebc66 /drivers/net/wireless/ath/ath6kl/main.c | |
| parent | ba1f6fe393c329230d2589ea508cbf90ff3cc9ce (diff) | |
| download | lwn-bc48ad31c5814feb4ff8faca9a8d422279593cb1.tar.gz lwn-bc48ad31c5814feb4ff8faca9a8d422279593cb1.zip | |
ath6kl: Support for TCP checksum offload to firmware
The change enables offloading TCP checksum calculation to firmware.
There are still some issues with the checksum offload so better to
disable it by default until the issues are resolved.
To enable TCP checksum offload for tx and rx paths, use
the ethtool as follows:
ethtool -K <interface> tx on
ethtool -K <interface> rx on
To disable TCP checksum offload, for tx and rx paths, use
the ethtool as follows:
ethtool -K <interface> tx off
ethtool -K <interface> rx off
kvalo: indentation changes
Signed-off-by: Rishi Panjwani <rpanjwan@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/main.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c index eea3c747653e..f3d0184a5cea 100644 --- a/drivers/net/wireless/ath/ath6kl/main.c +++ b/drivers/net/wireless/ath/ath6kl/main.c @@ -1020,11 +1020,44 @@ static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) return &vif->net_stats; } +static int ath6kl_set_features(struct net_device *dev, u32 features) +{ + struct ath6kl_vif *vif = netdev_priv(dev); + struct ath6kl *ar = vif->ar; + int err = 0; + + if ((features & NETIF_F_RXCSUM) && + (ar->rx_meta_ver != WMI_META_VERSION_2)) { + ar->rx_meta_ver = WMI_META_VERSION_2; + err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, + vif->fw_vif_idx, + ar->rx_meta_ver, 0, 0); + if (err) { + dev->features = features & ~NETIF_F_RXCSUM; + return err; + } + } else if (!(features & NETIF_F_RXCSUM) && + (ar->rx_meta_ver == WMI_META_VERSION_2)) { + ar->rx_meta_ver = 0; + err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, + vif->fw_vif_idx, + ar->rx_meta_ver, 0, 0); + if (err) { + dev->features = features | NETIF_F_RXCSUM; + return err; + } + + } + + return err; +} + static struct net_device_ops ath6kl_netdev_ops = { .ndo_open = ath6kl_open, .ndo_stop = ath6kl_close, .ndo_start_xmit = ath6kl_data_tx, .ndo_get_stats = ath6kl_get_stats, + .ndo_set_features = ath6kl_set_features, }; void init_netdev(struct net_device *dev) |