diff options
| author | Lorenzo Bianconi | 2019-02-12 14:42:39 +0100 |
|---|---|---|
| committer | Felix Fietkau | 2019-02-18 19:55:52 +0100 |
| commit | 63a7de5dfbfd4d3d96b0e7420d69ff8ac9b4d51a (patch) | |
| tree | 1b751f8b7b40982a0793eee0ef5a55efb31282b0 /drivers/net/wireless/mediatek/mt76/usb.c | |
| parent | mt76: usb: do not run mt76u_queues_deinit twice (diff) | |
| download | kernel-qcow2-linux-63a7de5dfbfd4d3d96b0e7420d69ff8ac9b4d51a.tar.gz kernel-qcow2-linux-63a7de5dfbfd4d3d96b0e7420d69ff8ac9b4d51a.tar.xz kernel-qcow2-linux-63a7de5dfbfd4d3d96b0e7420d69ff8ac9b4d51a.zip | |
mt76: usb: move mt76u_check_sg in usb.c
Move mt76u_check_sg routine in usb.c and introduce sg_en variable
in mt76_usb in order to check if scatter-gather is supported by
mt76u layer
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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); |