linux-stable.git/drivers/staging/netlogic, branch linux-3.13.y

net: core: explicitly select a txq before doing l2 forwarding

2014-01-10T18:23:08+00:00

Currently, the tx queue were selected implicitly in ndo_dfwd_start_xmit(). The
will cause several issues:

- NETIF_F_LLTX were removed for macvlan, so txq lock were done for macvlan
  instead of lower device which misses the necessary txq synchronization for
  lower device such as txq stopping or frozen required by dev watchdog or
  control path.
- dev_hard_start_xmit() was called with NULL txq which bypasses the net device
  watchdog.
- dev_hard_start_xmit() does not check txq everywhere which will lead a crash
  when tso is disabled for lower device.

Fix this by explicitly introducing a new param for .ndo_select_queue() for just
selecting queues in the case of l2 forwarding offload. netdev_pick_tx() was also
extended to accept this parameter and dev_queue_xmit_accel() was used to do l2
forwarding transmission.

With this fixes, NETIF_F_LLTX could be preserved for macvlan and there's no need
to check txq against NULL in dev_hard_start_xmit(). Also there's no need to keep
a dedicated ndo_dfwd_start_xmit() and we can just reuse the code of
dev_queue_xmit() to do the transmission.

In the future, it was also required for macvtap l2 forwarding support since it
provides a necessary synchronization method.

Cc: John Fastabend 
Cc: Neil Horman 
Cc: e1000-devel@lists.sourceforge.net
Signed-off-by: Jason Wang 
Acked-by: Neil Horman 
Acked-by: John Fastabend 
Signed-off-by: David S. Miller

staging:netlogic:Fixes commenting style in xlr_net.c

2013-10-15T19:27:11+00:00

Fixes commenting style in xlr_net.c mentioned in
drivers:staging:netlogic:TODO file

Signed-off-by: Archana kumari 
Signed-off-by: Greg Kroah-Hartman

drivers: staging: netlogic.h: removed WARNING: extern prototypes should be avoided in .h files

2013-09-25T23:22:31+00:00

removed checpatch warning : WARNING: extern prototypes should be avoided in .h files

Signed-off-by: Avinash Kumar 
Signed-off-by: Greg Kroah-Hartman

staging: netlogic: Fix typo in staging/netlogic

2013-06-24T22:56:09+00:00

Correct spelling typo in printk.

Signed-off-by: Masanari Iida 
Signed-off-by: Greg Kroah-Hartman

Staging: netlogic: fix missing free_netdev() on error in xlr_net_probe()

2013-06-19T16:41:37+00:00

Fix missing free_netdev() before return from function xlr_net_probe()
in the devm_ioremap_resource() error handling case.

Signed-off-by: Wei Yongjun 
Signed-off-by: Greg Kroah-Hartman

Staging: netlogic: Convert to use devm_ioremap_resource

2013-06-12T00:13:38+00:00

Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera 
CC: devel@driverdev.osuosl.org
CC: Greg Kroah-Hartman 
Signed-off-by: Greg Kroah-Hartman

Staging: netlogic: remove unused variable in xlr_net_start_xmit()

2013-03-14T22:03:56+00:00

The variable 'qmap' is initialized but never used
otherwise, so remove the unused variable.

Signed-off-by: Wei Yongjun 
Signed-off-by: Greg Kroah-Hartman

Staging: Netlogic XLR/XLS GMAC driver

2013-03-11T17:18:27+00:00

Add support for the Network Accelerator Engine on Netlogic XLR/XLS
MIPS SoCs. The XLR/XLS NAE blocks can be configured as one 10G
interface or four 1G interfaces. This driver supports blocks
with 1G ports.

Signed-off-by: Ganesan Ramalingam 
Signed-off-by: Greg Kroah-Hartman