linux-toradex.git/drivers/infiniband/core/sysfs.c, branch v3.6.1

IB/core: Don't return EINVAL from sysfs rate attribute for invalid speeds

2012-04-02T17:57:31+00:00

Commit e9319b0cb00d ("IB/core: Fix SDR rates in sysfs") changed our
sysfs rate attribute to return EINVAL to userspace if the underlying
device driver returns an invalid rate.  Apparently some drivers do this
when the link is down and some userspace pukes if it gets an error when
reading this attribute, so avoid a regression by not return an error to
match the old code.

Signed-off-by: Roland Dreier

IB: Use central enum for speed instead of hard-coded values

2012-03-05T17:25:16+00:00

The kernel IB stack uses one enumeration for IB speed, which wasn't
explicitly specified in the verbs header file.  Add that enum, and use
it all over the code.

The IB speed/width notation is also used by iWARP and IBoE HW drivers,
which use the convention of rate = speed * width to advertise their
port link rate.

Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/core: Fix SDR rates in sysfs

2012-02-27T17:15:08+00:00

Commit 71eeba16 ("IB: Add new InfiniBand link speeds") introduced a bug 
where eg the rate for IB 4X SDR links iss displayed as "8.5 Gb/sec" 
instead of "10 Gb/sec" as it used to be.  Fix that.

Reported-by: Or Gerlitz 
Signed-off-by: Roland Dreier

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-07T03:44:47+00:00

* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include 
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include 
  net: sch_generic remove redundant use of 
  net: inet_timewait_sock doesnt need 
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h

infiniband: Fix up users implicitly relying on getting stat.h

2011-10-31T23:31:34+00:00

They get it via module.h (via device.h) but we want to clean that up.
When we do, we'll get things like:

  CC [M]  drivers/infiniband/core/sysfs.o
  sysfs.c:361: error: 'S_IRUGO' undeclared here (not in a function)
  sysfs.c:654: error: 'S_IWUSR' undeclared here (not in a function)

so add in the stat header it is using explicitly in advance.

Signed-off-by: Paul Gortmaker

IB: Add new InfiniBand link speeds

2011-10-11T18:53:47+00:00

Introduce support for the following extended speeds:

FDR-10: a Mellanox proprietary link speed which is 10.3125 Gbps with
        64b/66b encoding rather than 8b/10b encoding.
FDR:    IBA extended speed 14.0625 Gbps.
EDR:    IBA extended speed 25.78125 Gbps.

Signed-off-by: Marcel Apfelbaum 
Reviewed-by: Hal Rosenstock 
Reviewed-by: Sean Hefty 
Signed-off-by: Roland Dreier

IB/core: Add link layer type information to sysfs

2010-10-25T17:20:39+00:00

Since an IB transport port may use either IB or Ethernet as its link layer,
add the file /sys/class/infiniband//ports//link_layer to
show the link layer for the port.

Signed-off-by: Eli Cohen 
Signed-off-by: Roland Dreier

IB/core: Allow device-specific per-port sysfs files

2010-05-21T17:34:44+00:00

Add a new parameter to ib_register_device() so that low-level device
drivers can pass in a pointer to a callback function that will be
called for each port that is registered in sysfs.  This allows
low-level device drivers to create files in

    /sys/class/infiniband//ports//

without having to poke through the internals of the RDMA sysfs handling.

There is no need for an unregister function since the kobject
reference will go to zero when ib_unregister_device() is called.

Signed-off-by: Ralph Campbell 
Signed-off-by: Roland Dreier

sysfs: fix sysfs lockdep warning in infiniband code

2010-03-19T14:12:13+00:00

This fixes a sysfs lockdep warning in the infiniband code.

Cc: Yinghai Lu 
Cc: Eric Biederman 
Signed-off-by: Greg Kroah-Hartman

Driver core: Constify struct sysfs_ops in struct kobj_type

2010-03-08T01:04:49+00:00

Constify struct sysfs_ops.

This is part of the ops structure constification
effort started by Arjan van de Ven et al.

Benefits of this constification:

 * prevents modification of data that is shared
   (referenced) by many other structure instances
   at runtime

 * detects/prevents accidental (but not intentional)
   modification attempts on archs that enforce
   read-only kernel data at runtime

 * potentially better optimized code as the compiler
   can assume that the const data cannot be changed

 * the compiler/linker move const data into .rodata
   and therefore exclude them from false sharing

Signed-off-by: Emese Revfy 
Acked-by: David Teigland 
Acked-by: Matt Domsch 
Acked-by: Maciej Sosnowski 
Acked-by: Hans J. Koch 
Acked-by: Pekka Enberg 
Acked-by: Jens Axboe 
Acked-by: Stephen Hemminger 
Signed-off-by: Greg Kroah-Hartman