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0228-add-smsc95xx-packetsize-module_param.patch

0228-add-smsc95xx-packetsize-module_param.patch 1.6 KB
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  1. From 13d40fc43b9c2e3bdf4be8f8166a28ca1c5bdc34 Mon Sep 17 00:00:00 2001
    2. 

  2. From: Sam Nazarko <email@samnazarko.co.uk>
    3. 

  3. Date: Fri, 1 Apr 2016 17:27:21 +0100
    4. 

  4. Subject: [PATCH] add smsc95xx packetsize module_param
    5. 

  5. 

  6. Signed-off-by: Sam Nazarko <email@samnazarko.co.uk>
    7. 

  7. ---
    8. 

  8.  drivers/net/usb/smsc95xx.c | 14 +++++++++-----
    9. 

  9.  1 file changed, 9 insertions(+), 5 deletions(-)
    10. 

  10. 

  11. --- a/drivers/net/usb/smsc95xx.c
    12. 

  12. +++ b/drivers/net/usb/smsc95xx.c
    13. 

  13. @@ -83,6 +83,10 @@ static char *macaddr = ":";
    14. 

  14.  module_param(macaddr, charp, 0);
    15. 

  15.  MODULE_PARM_DESC(macaddr, "MAC address");
    16. 

  16.  
    17. 

  17. +static int packetsize = 0;
    18. 

  18. +module_param(packetsize, int, 0644);
    19. 

  19. +MODULE_PARM_DESC(packetsize, "Override the RX URB packet size");
    20. 

  20. +
    21. 

  21.  static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
    22. 

  22.  					    u32 *data, int in_pm)
    23. 

  23.  {
    24. 

  24. @@ -1009,13 +1013,13 @@ static int smsc95xx_reset(struct usbnet
    25. 

  25.  
    26. 

  26.  	if (!turbo_mode) {
    27. 

  27.  		burst_cap = 0;
    28. 

  28. -		dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
    29. 

  29. +		dev->rx_urb_size = packetsize ? packetsize : MAX_SINGLE_PACKET_SIZE;
    30. 

  30.  	} else if (dev->udev->speed == USB_SPEED_HIGH) {
    31. 

  31. -		burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
    32. 

  32. -		dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
    33. 

  33. +		dev->rx_urb_size = packetsize ? packetsize : DEFAULT_HS_BURST_CAP_SIZE;
    34. 

  34. +		burst_cap = dev->rx_urb_size / HS_USB_PKT_SIZE;
    35. 

  35.  	} else {
    36. 

  36. -		burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
    37. 

  37. -		dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
    38. 

  38. +		dev->rx_urb_size = packetsize ? packetsize : DEFAULT_FS_BURST_CAP_SIZE;
    39. 

  39. +		burst_cap = dev->rx_urb_size / FS_USB_PKT_SIZE;
    40. 

  40.  	}
    41. 

  41.  
    42. 

  42.  	netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",
    43.