linux-toradex.git/drivers/net/ethernet/broadcom, branch v3.14.43

tg3: Call dev_kfree_skby_any instead of dev_kfree_skb.

2015-04-29T08:31:48+00:00

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

bnx2: Call dev_kfree_skby_any instead of dev_kfree_skb.

2015-04-29T08:31:48+00:00

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

bnx2x: Force fundamental reset for EEH recovery

2015-03-26T14:06:56+00:00

commit da293700568ed3d96fcf062ac15d7d7c41377f11 upstream.

EEH recovery for bnx2x based adapters is not reliable on all Power
systems using the default hot reset, which can result in an
unrecoverable EEH error. Forcing the use of fundamental reset
during EEH recovery fixes this.

Signed-off-by: Brian King 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

bnx2x: fix napi poll return value for repoll

2015-02-27T01:50:11+00:00

[ Upstream commit 24e579c8898aa641ede3149234906982290934e5 ]

With the commit d75b1ade567ffab ("net: less interrupt masking in NAPI") napi
repoll is done only when work_done == budget. When in busy_poll is we return 0
in napi_poll. We should return budget.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts

2015-01-27T16:18:53+00:00

[ Upstream commit 05b0aa579397b734f127af58e401a30784a1e315 ]

During driver load in tg3_init_one, if the driver detects DMA activity before
intializing the chip tg3_halt is called. As part of tg3_halt interrupts are
disabled using routine tg3_disable_ints. This routine was using mailbox value
which was not initialized (default value is 0). As a result driver was writing
0x00000001 to pci config space register 0, which is the vendor id / device id.

This driver bug was exposed because of the commit a7877b17a667 (PCI: Check only
the Vendor ID to identify Configuration Request Retry). Also this issue is only
seen in older generation chipsets like 5722 because config space write to offset
0 from driver is possible. The newer generation chips ignore writes to offset 0.
Also without commit a7877b17a667, for these older chips when a GRC reset is
issued the Bootcode would reprogram the vendor id/device id, which is the reason
this bug was masked earlier.

Fixed by initializing the interrupt mailbox registers before calling tg3_halt.

Please queue for -stable.

Reported-by: Nils Holland 
Reported-by: Marcelo Ricardo Leitner 
Signed-off-by: Prashant Sreedharan 
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: fix ring init when there are more TX than RX channels

2014-12-16T17:34:27+00:00

[ Upstream commit a620a6bc1c94c22d6c312892be1e0ae171523125 ]

If TX channels are set to 4 and RX channels are set to less than 4,
using ethtool -L, the driver will try to initialize more RX channels
than it has allocated, causing an oops.

This fix only initializes the RX ring if it has been allocated.

Signed-off-by: Thadeu Lima de Souza Cascardo 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Allow for recieve of full-size 8021AD frames

2014-10-15T06:36:42+00:00

[ Upstream commit 7d3083ee36b51e425b6abd76778a2046906b0fd3 ]

When receiving a vlan-tagged frame that still contains
a vlan header, the length of the packet will be greater
then MTU+ETH_HLEN since it will account of the extra
vlan header.  TG3 checks this for the case for 802.1Q,
but not for 802.1ad.  As a result, full sized 802.1ad
frames get dropped by the card.

Add a check for 802.1ad protocol when receving full
sized frames.

Suggested-by: Prashant Sreedharan 
CC: Prashant Sreedharan 
CC: Michael Chan 
Signed-off-by: Vladislav Yasevich 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Work around HW/FW limitations with vlan encapsulated frames

2014-10-15T06:36:41+00:00

[ Upstream commit 476c18850c6cbaa3f2bb661ae9710645081563b9 ]

TG3 appears to have an issue performing TSO and checksum offloading
correclty when the frame has been vlan encapsulated (non-accelrated).
In these cases, tcp checksum is not correctly updated.

This patch attempts to work around this issue.  After the patch,
802.1ad vlans start working correctly over tg3 devices.

CC: Prashant Sreedharan 
CC: Michael Chan 
Signed-off-by: Vladislav Yasevich 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

bnx2x: fix crash during TSO tunneling

2014-08-14T01:38:23+00:00

[ Upstream commit fe26566d8a05151ba1dce75081f6270f73ec4ae1 ]

When TSO packet is transmitted additional BD w/o mapping is used
to describe the packed. The BD needs special handling in tx
completion.

kernel: Call Trace:
kernel:   [] dump_stack+0x19/0x1b
kernel: [] warn_slowpath_common+0x61/0x80
kernel: [] warn_slowpath_fmt+0x5c/0x80
kernel: [] ? find_iova+0x4d/0x90
kernel: [] intel_unmap_page.part.36+0x142/0x160
kernel: [] intel_unmap_page+0x26/0x30
kernel: [] bnx2x_free_tx_pkt+0x157/0x2b0 [bnx2x]
kernel: [] bnx2x_tx_int+0xac/0x220 [bnx2x]
kernel: [] ? read_tsc+0x9/0x20
kernel: [] bnx2x_poll+0xbb/0x3c0 [bnx2x]
kernel: [] net_rx_action+0x15a/0x250
kernel: [] __do_softirq+0xf7/0x290
kernel: [] call_softirq+0x1c/0x30
kernel: [] do_softirq+0x55/0x90
kernel: [] irq_exit+0x115/0x120
kernel: [] do_IRQ+0x58/0xf0
kernel: [] common_interrupt+0x6d/0x6d
kernel:   [] ? clockevents_notify+0x127/0x140
kernel: [] ? cpuidle_enter_state+0x4f/0xc0
kernel: [] cpuidle_idle_call+0xc5/0x200
kernel: [] arch_cpu_idle+0xe/0x30
kernel: [] cpu_startup_entry+0xf5/0x290
kernel: [] start_secondary+0x265/0x27b
kernel: ---[ end trace 11aa7726f18d7e80 ]---

Fixes: a848ade408b ("bnx2x: add CSUM and TSO support for encapsulation protocols")
Reported-by: Yulong Pei 
Cc: Michal Schmidt 
Signed-off-by: Dmitry Kravkov 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

bnx2x: fix possible panic under memory stress

2014-07-28T15:06:00+00:00

[ Upstream commit 07b0f00964def8af9321cfd6c4a7e84f6362f728 ]

While it is legal to kfree(NULL), it is not wise to use :
put_page(virt_to_head_page(NULL))

 BUG: unable to handle kernel paging request at ffffeba400000000
 IP: [] virt_to_head_page+0x36/0x44 [bnx2x]

Reported-by: Michel Lespinasse 
Signed-off-by: Eric Dumazet 
Cc: Ariel Elior 
Fixes: d46d132cc021 ("bnx2x: use netdev_alloc_frag()")
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman