linux-toradex.git/drivers/net, branch v3.17-rc4

net: ethernet: broadcom: bnx2x: Remove redundant #ifdef

2014-08-22T18:29:58+00:00

Nothing defines _ASM_GENERIC_INT_L64_H, it is a weird way to check for
64 bit longs, and u64 should be printed using %llx anyway.

Signed-off-by: Rasmus Villemoes 
Signed-off-by: David S. Miller

ibmveth: Fix endian issues with rx_no_buffer statistic

2014-08-22T18:28:00+00:00

Hidden away in the last 8 bytes of the buffer_list page is a solitary
statistic. It needs to be byte swapped or else ethtool -S will
produce numbers that terrify the user.

Since we do this in multiple places, create a helper function with a
comment explaining what is going on.

Signed-off-by: Anton Blanchard 
Cc: stable@vger.kernel.org
Signed-off-by: David S. Miller

net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()

2014-08-22T18:25:25+00:00

A NULL pointer dereference is possible for the argument ring->buf_pool
which is passed to xgene_enet_free_desc_ring(), as ring could be NULL.

And now since NULL pointers are being checked for before the calls to
xgene_enet_free_desc_ring(), might as well take advantage of them and
not call the function if the argument would be NULL.

Reported-by: Dan Carpenter 
Signed-off-by: Iyappan Subramanian 
Signed-off-by: David S. Miller

net: fec: ptp: avoid register access when ipg clock is disabled

2014-08-22T17:45:56+00:00

The current kernel hang on i.MX6SX with rootfs mount from MMC.
The root cause is that ptp uses a periodic timer to access enet register
even if ipg clock is disabled.

FEC ptp driver start one period timer to read 1588 counter register in the
ptp init function that is called after FEC driver is probed.

To save power, after FEC probe finish, FEC driver disable all clocks including
ipg clock that is needed for register access.

i.MX5x, i.MX6q/dl/sl FEC register access don't cause system hang when ipg clock
is disabled, just return zero value. But for i.MX6sx SOC, it cause system hang.

To avoid the issue, we need to check ptp clock status before ptp timer count access.

Signed-off-by: Fugang Duan 
Signed-off-by: David S. Miller

cxgb4: Free completed tx skbs promptly

2014-08-22T04:54:52+00:00

Description of problem:
The NIC card is not reporting back to the driver the transmitted skbs,
so they get stuck in the TX ring causing issues with reference
counters in other kernel components.

Developed a new Automatic Egress Queue Update firmware facility to slowly tick
through Egress Queues and send back any outstanding CIDX Updates which are
laying around.

Based on original work by Casey Leedom 

Signed-off-by: Hariprasad Shenai 
Signed-off-by: David S. Miller

Merge tag 'linux-can-fixes-for-3.17-20140821' of git://gitorious.org/linux-can/linux-can

2014-08-22T04:53:15+00:00

Marc Kleine-Budde says:

====================
pull-request: can 2014-08-21

The first patch is from Mirza Krak, it fixes the initialization of the hardware
in the sja1000 driver. The next patch is contributed by Dan Carpenter, it fixes
the error handling in the c_can's probe function. Then there are two patches
for the flexcan driver, one by Alexander Stein, which fixes the resetting of
the bus error interrupt mask, the other one by Sebastian Andrzej Siewior which
adds an additional error state transition message.
====================

Signed-off-by: David S. Miller

cxgb4: Fix race condition in cleanup

2014-08-22T04:45:36+00:00

There is a possible race condition when we unregister the PCI Driver and then
flush/destroy the global "workq". This could lead to situations where there
are tasks on the Work Queue with references to now deleted adapter data
structures. Instead, have per-adapter Work Queues which were instantiated and
torn down in init_one() and remove_one(), respectively.

v2: Remove unnecessary call to flush_workqueue() before destroy_workqueue()

Signed-off-by: Anish Bhatt 
Signed-off-by: Casey Leedom 
Acked-by: Neil Horman 
Signed-off-by: David S. Miller

bnx2x: Revert UNDI flushing mechanism

2014-08-22T00:54:43+00:00

Commit 91ebb929b6f8 ("bnx2x: Add support for Multi-Function UNDI") [which was
later supposedly fixed by de682941eef3 ("bnx2x: Fix UNDI driver unload")]
introduced a bug in which in some [yet-to-be-determined] scenarios the
alternative flushing mechanism which was to guarantee the Rx buffers are
empty before resetting them during device probe will fail.
If this happens, when device will be loaded once more a fatal attention will
occur; Since this most likely happens in boot from SAN scenarios, the machine
will fail to load.

Notice this may occur not only in the 'Multi-Function' scenario but in the
regular scenario as well, i.e., this introduced a regression in the driver's
ability to perform boot from SAN.

The patch reverts the mechanism and applies the old scheme to multi-function
devices as well as to single-function devices.

Signed-off-by: Yuval Mintz 
Signed-off-by: Ariel Elior 
Signed-off-by: David S. Miller

qlcnic: Fix endianess issue in firmware load from file operation

2014-08-22T00:43:15+00:00

Firmware binary file is in little endian. On big-endian architecture, while
writing this binary FW file to adapters memory, writel() swaps the data resulting into
corruption of FW image. So, swap the data before writing into adapters memory.

Signed-off-by: Shahed Shaikh 
Signed-off-by: David S. Miller

qlcnic: Fix endianess issue in FW dump template header

2014-08-22T00:43:15+00:00

Firmware dump template header is read from adapter using
readl() which swaps the data. So, adjust structure
element on the boundary of 32bit dword.

Signed-off-by: Rajesh Borundia 
Signed-off-by: Shahed Shaikh 
Signed-off-by: David S. Miller