linux.git/drivers/net, branch v3.19-rc4

qla3xxx: don't allow never end busy loop

2015-01-06T22:41:36+00:00

The counter variable wasn't increased at all which may stuck under
certain circumstances.

Signed-off-by: Andy Shevchenko 
Signed-off-by: David S. Miller

xen-netback: fixing the propagation of the transmit shaper timeout

2015-01-06T19:17:37+00:00

Since e9ce7cb6b107 ("xen-netback: Factor queue-specific data into queue struct"),
the transimt shaper timeout is always set to 0.  The value the user sets via
xenbus is never propagated to the transmit shaper.

This patch fixes the issue.

Cc: Anthony Liguori 
Signed-off-by: Imre Palik 
Acked-by: Ian Campbell 
Signed-off-by: David S. Miller

r8152: support ndo_features_check

2015-01-06T18:29:13+00:00

Support ndo_features_check to avoid:
 - the transport offset is more than the hw limitation when using hw checksum.
 - the skb->len of a GSO packet is more than the limitation.

Signed-off-by: Hayes Wang 
Signed-off-by: David S. Miller

net: ethernet: cpsw: fix hangs with interrupts

2015-01-05T03:18:34+00:00

The CPSW IP implements pulse-signaled interrupts. Due to
that we must write a correct, pre-defined value to the
CPDMA_MACEOIVECTOR register so the controller generates
a pulse on the correct IRQ line to signal the End Of
Interrupt.

The way the driver is written today, all four IRQ lines
are requested using the same IRQ handler and, because of
that, we could fall into situations where a TX IRQ fires
but we tell the controller that we ended an RX IRQ (or
vice-versa). This situation triggers an IRQ storm on the
reserved IRQ 127 of INTC which will in turn call ack_bad_irq()
which will, then, print a ton of:

	unexpected IRQ trap at vector 00

In order to fix the problem, we are moving all calls to
cpdma_ctlr_eoi() inside the IRQ handler and making sure
we *always* write the correct value to the CPDMA_MACEOIVECTOR
register. Note that the algorithm assumes that IRQ numbers and
value-to-be-written-to-EOI are proportional, meaning that a
write of value 0 would trigger an EOI pulse for the RX_THRESHOLD
Interrupt and that's the IRQ number sitting in the 0-th index
of our irqs_table array.

This, however, is safe at least for current implementations of
CPSW so we will refrain from making the check smarter (and, as
a side-effect, slower) until we actually have a platform where
IRQ lines are swapped.

This patch has been tested for several days with AM335x- and
AM437x-based platforms. AM57x was left out because there are
still pending patches to enable ethernet in mainline for that
platform. A read of the TRM confirms the statement on previous
paragraph.

Reported-by: Yegor Yefremov 
Fixes: 510a1e7 (drivers: net: davinci_cpdma: acknowledge interrupt properly)
Cc:  # v3.9+
Signed-off-by: Felipe Balbi 
Acked-by: Tony Lindgren 
Signed-off-by: David S. Miller

enic: free all rq buffs when allocation fails

2015-01-02T21:43:45+00:00

When allocation of all RQs fail, we do not free previously allocated buffers,
before returning error. This causes memory leak.

This patch fixes this by calling vnic_rq_clean(), which frees all the rq
buffers.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller

qmi_wwan: Set random MAC on devices with buggy fw

2015-01-02T21:41:47+00:00

Some buggy firmwares export an incorrect MAC address (00:a0:c6:00:00:00). This
makes for example checking devices for random MAC addresses tricky, and you
might end up with multiple network interfaces with the same address.

This patch tries to fix, or at least improve, the situation by setting the MAC
address of devices with this firmware bug to a random address. I tested the
patch with two devices that has this firmware bug (Huawei E398 and E392), and
network traffic worked fine after changing the address.

Signed-off-by: Kristian Evensen 
Signed-off-by: David S. Miller

Altera TSE: Add missing phydev

2015-01-02T20:45:10+00:00

Altera network device doesn't come up after

ifconfig eth0 down
ifconfig eth0 up

The reason behind is clearing priv->phydev during tse_shutdown().
The phydev is not restored back at tse_open().

Resubmiting as to follow Tobias Klauser suggestion.
phy_start/phy_stop are called on each ifup/ifdown and
phy_disconnect is called once during the module removal.

Signed-off-by: Kostya Belezko 
Signed-off-by: David S. Miller

net/mlx4_core: Fix error flow in mlx4_init_hca()

2015-01-02T20:41:29+00:00

We shouldn't call UNMAP_FA here, this is done in mlx4_load_one.

If mlx4_query_func fails, we need to invoke CLOSE_HCA for both
native and master.

Fixes: a0eacca948d2 ('net/mlx4_core: Refactor mlx4_load_one')
Signed-off-by: Jack Morgenstein 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/mlx4_core: Correcly update the mtt's offset in the MR re-reg flow

2015-01-02T20:41:28+00:00

Previously, mlx4_mt_rereg_write filled the MPT's entity_size with the
old MTT's page shift, which could result in using an incorrect offset.
Fix the initialization to be after we calculate the new MTT offset.

In addition, assign mtt order to -1 after calling mlx4_mtt_cleanup. This
is necessary in order to mark the MTT as invalid and avoid freeing it later.

Fixes: e630664 ('mlx4_core: Add helper functions to support MR re-registration')
Signed-off-by: Maor Gottlieb 
Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

qlcnic: Fix return value in qlcnic_probe()

2015-01-01T00:21:19+00:00

If the check of adapter fails and goes into the 'else' branch, the
return value 'err' should not still be zero.

Signed-off-by: Yongjian Xu 
Acked-by: Shahed Shaikh 
Signed-off-by: David S. Miller