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  1. 21 3月, 2014 1 次提交
    • B
      net: cdc_ncm: respect operator preferred MTU reported by MBIM · 259fef03
      由 Ben Chan 提交于 
      According to "Universal Serial Bus Communications Class Subclass
Specification for Mobile Broadband Interface Model, Revision 1.0,
Errata-1" published by USB-IF, the wMTU field of the MBIM extended
functional descriptor indicates the operator preferred MTU for IP data
streams.

This patch modifies cdc_ncm_setup to ensure that the MTU value set on
the usbnet device does not exceed the operator preferred MTU indicated
by wMTU if the MBIM device exposes a MBIM extended functional
descriptor.
Signed-off-by: NBen Chan <benchan@chromium.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      259fef03
  3. 13 3月, 2014 1 次提交
  5. 12 3月, 2014 1 次提交
  7. 11 3月, 2014 1 次提交
  9. 08 3月, 2014 8 次提交
  11. 07 3月, 2014 3 次提交
  13. 06 3月, 2014 1 次提交
    • H
      r8152: disable the ECM mode · 10c32717
      由 hayeswang 提交于 
      There are known issues for switching the drivers between ECM mode and
vendor mode. The interrup transfer may become abnormal. The hardware
may have the opportunity to die if you change the configuration without
unloading the current driver first, because all the control transfers
of the current driver would fail after the command of switching the
configuration.

Although to use the ecm driver and vendor driver independently is fine,
it may have problems to change the driver from one to the other by
switching the configuration. Additionally, now the vendor mode driver
is more powerful than the ECM driver. Thus, disable the ECM mode driver,
and let r8152 to set the configuration to vendor mode and reset the
device automatically.
Signed-off-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      10c32717
  15. 03 3月, 2014 1 次提交
  17. 27 2月, 2014 1 次提交
  19. 19 2月, 2014 14 次提交
  21. 18 2月, 2014 1 次提交
    • E
      usbnet: remove generic hard_header_len check · eb85569f
      由 Emil Goode 提交于 
      This patch removes a generic hard_header_len check from the usbnet
module that is causing dropped packages under certain circumstances
for devices that send rx packets that cross urb boundaries.

One example is the AX88772B which occasionally send rx packets that
cross urb boundaries where the remaining partial packet is sent with
no hardware header. When the buffer with a partial packet is of less
number of octets than the value of hard_header_len the buffer is
discarded by the usbnet module.

With AX88772B this can be reproduced by using ping with a packet
size between 1965-1976.

The bug has been reported here:

https://bugzilla.kernel.org/show_bug.cgi?id=29082

This patch introduces the following changes:
- Removes the generic hard_header_len check in the rx_complete
  function in the usbnet module.
- Introduces a ETH_HLEN check for skbs that are not cloned from
  within a rx_fixup callback.
- For safety a hard_header_len check is added to each rx_fixup
  callback function that could be affected by this change.
  These extra checks could possibly be removed by someone
  who has the hardware to test.
- Removes a call to dev_kfree_skb_any() and instead utilizes the
  dev->done list to queue skbs for cleanup.

The changes place full responsibility on the rx_fixup callback
functions that clone skbs to only pass valid skbs to the
usbnet_skb_return function.
Signed-off-by: NEmil Goode <emilgoode@gmail.com>
Reported-by: NIgor Gnatenko <i.gnatenko.brain@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      eb85569f
  23. 15 2月, 2014 1 次提交
  25. 14 2月, 2014 3 次提交
  27. 11 2月, 2014 1 次提交
  29. 10 2月, 2014 1 次提交
  31. 07 2月, 2014 1 次提交