From c7504685b6f2ee671e1adda42dcfa81dcb3f8c69 Mon Sep 17 00:00:00 2001 From: Sam Nazarko Date: Fri, 1 Apr 2016 17:27:21 +0100 Subject: [PATCH] add smsc95xx packetsize module_param Signed-off-by: Sam Nazarko --- drivers/net/usb/smsc95xx.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -83,6 +83,10 @@ static char *macaddr = ":"; module_param(macaddr, charp, 0); MODULE_PARM_DESC(macaddr, "MAC address"); +static int packetsize = 0; +module_param(packetsize, int, 0644); +MODULE_PARM_DESC(packetsize, "Override the RX URB packet size"); + static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data, int in_pm) { @@ -1006,13 +1010,13 @@ static int smsc95xx_reset(struct usbnet if (!turbo_mode) { burst_cap = 0; - dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE; + dev->rx_urb_size = packetsize ? packetsize : MAX_SINGLE_PACKET_SIZE; } else if (dev->udev->speed == USB_SPEED_HIGH) { - burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE; - dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE; + dev->rx_urb_size = packetsize ? packetsize : DEFAULT_HS_BURST_CAP_SIZE; + burst_cap = dev->rx_urb_size / HS_USB_PKT_SIZE; } else { - burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE; - dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE; + dev->rx_urb_size = packetsize ? packetsize : DEFAULT_FS_BURST_CAP_SIZE; + burst_cap = dev->rx_urb_size / FS_USB_PKT_SIZE; } netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",