linux-stable.git/drivers/net/ethernet/broadcom, branch v3.17

bnx2: Correctly receive full sized 802.1ad fragmes

2014-10-01T20:43:45+00:00

This driver, similar to tg3, has a check that will
cause full sized 802.1ad frames to be dropped.  The
frame will be larger then the standard mtu due to the
presense of vlan header that has not been stripped.
The driver should not drop this frame and should process
it just like it does for 802.1q.

CC: Sony Chacko 
CC: Dept-HSGLinuxNICDev@qlogic.com
Signed-off-by: Vladislav Yasevich 
Signed-off-by: David S. Miller

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

2014-10-01T20:43:45+00:00

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

net: bcmgenet: call bcmgenet_dma_teardown in bcmgenet_fini_dma

2014-09-22T22:38:40+00:00

We should not be manipulaging the DMA_CTRL registers directly by writing
0 to them to disable DMA. This is an operation that needs to be timed to
make sure the DMA engines have been properly stopped since their state
machine stops on a packet boundary, not immediately.

Make sure that tha bcmgenet_fini_dma() calls bcmgenet_dma_teardown() to
ensure a proper DMA engine state. As a result, we need to reorder the
function bodies to resolve the use dependency.

Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: bcmgenet: fix TX reclaim accounting for fragments

2014-09-22T22:38:40+00:00

The GENET driver supports SKB fragments, and succeeds in transmitting
them properly, but when reclaiming these transmitted fragments, we will
only update the count of free buffer descriptors by 1, even for SKBs
with fragments. This leads to the networking stack thinking it has more
room than the hardware has when pushing new SKBs, and backing off
consequently because we return NETDEV_TX_BUSY.

Fix this by accounting for the SKB nr_frags plus one (itself) and update
ring->free_bds accordingly with that value for each iteration loop in
__bcmgenet_tx_reclaim().

Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

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

2014-09-22T18:20:23+00:00

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

drivers: net: b44: Fix typo in returning multicast stats

2014-09-12T22:23:55+00:00

nstat->multicast refers to received packets, not transmitted as
is returned here. Change it so that received packet stats are
given.

Signed-off-by: Mark Einon 
Signed-off-by: David S. Miller

net: bcmgenet: check harder for out of memory conditions

2014-09-08T23:02:49+00:00

There is a potential case where we might be failing to refill a
control block, leaving it with both a NULL skb pointer *and* a NULL
dma_unmap_addr.

The way we process incoming packets, by first calling
dma_unmap_single(), and then only checking for a potential NULL skb can
lead to situations where do pass a NULL dma_unmap_addr() to
dma_unmap_single(), resulting in an oops.

Fix this my moving the NULL skb check earlier, since no backing skb
also means no corresponding DMA mapping for this packet.

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: systemport: check harder for out of memory conditions

2014-09-08T23:02:49+00:00

There is a potential case where we might be failing to refill a
control block, leaving it with both a NULL skb pointer *and* a NULL
dma_unmap_addr.

The way we process incoming packets, by first calling
dma_unmap_single(), and then only checking for a potential NULL skb can
lead to situations where do pass a NULL dma_unmap_addr() to
dma_unmap_single(), resulting in an oops.

Fix this my moving the NULL skb check earlier, since no backing skb
also means no corresponding DMA mapping for this packet.

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

cnic : Cleanup CONFIG_IPV6 & VLAN check

2014-09-06T03:47:14+00:00

The cnic module needs to ensure that if ipv6 support is compiled as a module,
then the cnic module cannot be compiled as built-in as it depends on ipv6.
Made this check cleaner via Kconfig

Use simpler IS_ENABLED for CONFIG_VLAN_8021Q check

Signed-off-by: Anish Bhatt 
Acked-by: Michael Chan 
Signed-off-by: David S. Miller

bnx2x: Fix link problems for 1G SFP RJ45 module

2014-09-06T00:28:37+00:00

When 1G SFP RJ45 module is detected, driver must reset the Tx laser
in order to prevent link issues. As part of change, the link_attr_sync
was relocated from vars to params.

Signed-off-by: Yaniv Rosner 
Signed-off-by: Yuval Mintz 
Signed-off-by: David S. Miller