linux-stable.git/drivers/rapidio, branch linux-2.6.38.y

rapidio: fix default routing initialization

2011-05-21T22:13:27+00:00

commit 0bf2461fdd9008290cf429e50e4f362dafab4249 upstream.

Fix switch initialization to ensure that all switches have default routing
disabled.  This guarantees that no unexpected RapidIO packets arrive to
the default port set by reset and there is no default routing destination
until it is properly configured by software.

This update also unifies handling of unmapped destinations by tsi57x, IDT
Gen1 and IDT Gen2 switches.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

rapidio: fix sysfs config attribute to access 16MB of maint space

2011-02-25T23:07:37+00:00

Fixes sysfs config attribute to allow access to entire 16MB maintenance
space of RapidIO devices.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: fix new kernel-doc warnings

2011-01-23T04:32:37+00:00

Fix new rapidio kernel-doc warnings:

  Warning(drivers/rapidio/rio-scan.c:953): No description found for parameter 'prev'
  Warning(drivers/rapidio/rio-scan.c:953): No description found for parameter 'prev_port'

Signed-off-by: Randy Dunlap 
Cc: Alexandre Bounine 
Cc: Matt Porter 
Signed-off-by: Linus Torvalds

rapidio: add new idt sRIO switches

2011-01-13T16:03:18+00:00

Add new sRIO switch device IDs and enable a basic support for them.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: use Component Tag for unified switch identification

2011-01-13T16:03:18+00:00

Change the way how switchid value is set.  Local counter variable does not
provide unified way to identify switch devices in a system with multiple
processors.  Using local counter leads to the situation when the same RIO
switch has different switch ID for each processor.  Replacing local
counter with unique portion of the Component Tag provides unified
reference to the switch by every processor in the system.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: add device object linking into discovery

2011-01-13T16:03:18+00:00

Add setting links between rio_dev objects into the discovery process.
This needed to report device connections on agent (non-host) processors
that perform RIO discovery.  Originally, these links have been introduced
for enumerating host only to support error management.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: add definitions of Component Tag fields

2011-01-13T16:03:18+00:00

Add definition of the unique device identifier field in the component tag.
 RIO_CTAG_UDEVID does not take all 32 bits of the component tag value to
allow future extensions to the component tag use.

Selected size of the RIO_CTAG_UDEVID field (17 bits) is sufficient to
accommodate maximum number of endpoints in large RIO network (16-bit id)
plus switches.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: integrate rio_switch into rio_dev

2011-01-13T16:03:17+00:00

Convert RIO switches device structures (rio_dev + rio_switch) into a
single allocation unit.

This change is based on the fact that RIO switches are using common RIO
device objects anyway.  Allocating RIO switch objects as RIO devices with
added space for switch information simplifies handling of RIO switch
devices.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: use common destid storage for endpoints and switches

2011-01-13T16:03:17+00:00

Change code to use one storage location common for switches and endpoints.
This eliminates unnecessary device type checks during basic access
operations.  Logic that assigns destid to RIO devices stays unchanged - as
before, switches use an associated destid because they do not have their
own.

Signed-off-by: Alexandre Bounine 
Cc: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio: use resource_size()

2010-11-12T15:55:30+00:00

The size calculation is done incorrectly here because it should include
both the start and end (end - start + 1).  It's easiest to just use
resource_size() which does the right thing.

I was worried there was something non-standard going on because the
printk() subtracts "end - 1", but the rest of the file uses the normal
resource size calculations.  This function is only called from
fsl_rio_setup() in arch/powerpc/sysdev/fsl_rio.c and the calculation
there is also:

	port->iores.start = law_start;
	port->iores.end = law_start + law_size - 1;

So I think this is the correct fix.

Signed-off-by: Dan Carpenter 
Cc: Alexandre Bounine 
Acked-by: Li Yang 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds