kernel.git/drivers/rapidio/rio.c, branch linux-3.7.y

rapidio: fix kernel-doc warnings

2012-11-16T22:33:04Z

Fix rapidio kernel-doc warnings: Warning(drivers/rapidio/rio.c:415): No description found for parameter 'local' Warning(drivers/rapidio/rio.c:415): Excess function parameter 'lstart' description in 'rio_map_inb_region' Warning(include/linux/rio.h:290): No description found for parameter 'switches' Warning(include/linux/rio.h:290): No description found for parameter 'destid_table' Signed-off-by: Randy Dunlap Cc: Matt Porter Acked-by: Alexandre Bounine Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: update asynchronous discovery initialization

2012-10-10T23:50:15Z

Update discovery process initialization based on Andrew Morton's comments: https://lkml.org/lkml/2012/10/3/552. This update processes all enumerating mports first and schedules discovery work after that. If the initialization routine fails to allocate resources needed to execute discovery, it abandons discovery for all ports. Signed-off-by: Alexandre Bounine Cc: Matt Porter Cc: Li Yang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: run discovery as an asynchronous process

2012-10-05T18:05:22Z

Modify mport initialization routine to run the RapidIO discovery process asynchronously. This allows to have an arbitrary order of enumerating and discovering ports in systems with multiple RapidIO controllers without creating a deadlock situation if enumerator port is registered after a discovering one. Making netID matching to mportID ensures consistent net ID assignment in multiport RapidIO systems with asynchronous discovery process (global counter implementation is affected by race between threads). [akpm@linux-foundation.org: tweak code layput] Signed-off-by: Alexandre Bounine Cc: Matt Porter Cc: Li Yang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: add inbound memory mapping interface

2012-10-05T18:05:21Z

Add common inbound memory mapping/unmapping interface. This allows to make local memory space accessible from the RapidIO side using hardware mapping capabilities of RapidIO bridging devices. The new interface is intended to enable data transfers between RapidIO devices in combination with DMA engine support. This patch is based on patch submitted by Li Yang (https://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/071210.html) Signed-off-by: Alexandre Bounine Cc: Matt Porter Cc: Li Yang Cc: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: add DMA engine support for RIO data transfers

2012-06-01T00:49:31Z

Adds DMA Engine framework support into RapidIO subsystem. Uses DMA Engine DMA_SLAVE interface to generate data transfers to/from remote RapidIO target devices. Introduces RapidIO-specific wrapper for prep_slave_sg() interface with an extra parameter to pass target specific information. Uses scatterlist to describe local data buffer. Address flat data buffer on a remote side. Signed-off-by: Alexandre Bounine Cc: Dan Williams Acked-by: Vinod Koul Cc: Li Yang Cc: Matt Porter Cc: Paul Gortmaker Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

RapidIO/mpc85xx: fix possible mport registration problems

2011-04-14T23:06:56Z

Fix a possible problem with mport registration left non-cleared after fsl_rio_setup() exits on link error. Abort mport initialization if registration failed. This patch is applicable to 2.6.39-rc1 only. The problem does not exist for earlier versions. 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

rapidio: remove mport resource reservation from common RIO code

2011-03-24T02:46:43Z

Removes resource reservation from the common sybsystem initialization code and make it part of mport driver initialization. This resolves conflict with resource reservation by device specific mport drivers. Signed-off-by: Alexandre Bounine Cc: Kumar Gala Cc: Matt Porter Cc: Li Yang Cc: Thomas Moll Cc: Micha Nelissen Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: modify mport ID assignment

2011-03-24T02:46:43Z

Changes mport ID and host destination ID assignment to implement unified method common to all mport drivers. Makes "riohdid=" kernel command line parameter common for all architectures with support for more that one host destination ID assignment. Signed-off-by: Alexandre Bounine Cc: Kumar Gala Cc: Matt Porter Cc: Li Yang Cc: Thomas Moll Cc: Micha Nelissen Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: modify subsystem and driver initialization sequence

2011-03-24T02:46:42Z

Subsystem initialization sequence modified to support presence of multiple RapidIO controllers in the system. The new sequence is compatible with initialization of PCI devices. Signed-off-by: Alexandre Bounine Cc: Kumar Gala Cc: Matt Porter Cc: Li Yang Cc: Thomas Moll Cc: Micha Nelissen Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rapidio: add architecture specific callbacks

2011-03-24T02:46:41Z

This set of patches eliminates RapidIO dependency on PowerPC architecture and makes it available to other architectures (x86 and MIPS). It also enables support of new platform independent RapidIO controllers such as PCI-to-SRIO and PCI Express-to-SRIO. This patch: Extend number of mport callback functions to eliminate direct linking of architecture specific mport operations. Signed-off-by: Alexandre Bounine Cc: Kumar Gala Cc: Matt Porter Cc: Li Yang Cc: Thomas Moll Cc: Micha Nelissen Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds