diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/usb.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/usb.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c index d2c30a280c3a..78b31b9ba8ad 100644 --- a/drivers/net/wireless/mediatek/mt76/usb.c +++ b/drivers/net/wireless/mediatek/mt76/usb.c @@ -241,6 +241,16 @@ mt76u_rd_rp(struct mt76_dev *dev, u32 base, return mt76u_req_rd_rp(dev, base, data, n); } +static bool mt76u_check_sg(struct mt76_dev *dev) +{ + struct usb_interface *intf = to_usb_interface(dev->dev); + struct usb_device *udev = interface_to_usbdev(intf); + + return (udev->bus->sg_tablesize > 0 && + (udev->bus->no_sg_constraint || + udev->speed == USB_SPEED_WIRELESS)); +} + static int mt76u_set_endpoints(struct usb_interface *intf, struct mt76_usb *usb) @@ -535,7 +545,7 @@ static int mt76u_alloc_rx(struct mt76_dev *dev) if (!q->entry) return -ENOMEM; - if (mt76u_check_sg(dev)) { + if (dev->usb.sg_en) { q->buf_size = MT_RX_BUF_SIZE; nsgs = MT_SG_MAX_SIZE; } else { @@ -880,6 +890,8 @@ int mt76u_init(struct mt76_dev *dev, dev->bus = &mt76u_ops; dev->queue_ops = &usb_queue_ops; + usb->sg_en = mt76u_check_sg(dev); + return mt76u_set_endpoints(intf, usb); } EXPORT_SYMBOL_GPL(mt76u_init); |