diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 09936a38db6997..d05e442804de95 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -618,6 +618,11 @@ static bool enable_tso; module_param(enable_tso, bool, 0644); MODULE_PARM_DESC(enable_tso, "Enables TCP segmentation offload"); +#define INT_URB_MICROFRAMES_PER_MS 8 +static int int_urb_interval_ms = 8; +module_param(int_urb_interval_ms, int, 0); +MODULE_PARM_DESC(int_urb_interval_ms, "Override usb interrupt urb interval"); + static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data) { u32 *buf; @@ -4456,7 +4461,13 @@ static int lan78xx_probe(struct usb_interface *intf, if (ret < 0) goto out4; - period = ep_intr->desc.bInterval; + if (int_urb_interval_ms <= 0) + period = ep_intr->desc.bInterval; + else + period = int_urb_interval_ms * INT_URB_MICROFRAMES_PER_MS; + + netif_notice(dev, probe, netdev, "int urb period %d\n", period); + maxp = usb_maxpacket(dev->udev, dev->pipe_intr); buf = kmalloc(maxp, GFP_KERNEL); if (!buf) {