09 Aug, 2014
1 commit
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Rework Tsi721 RapidIO DMA engine support to allow handling data
scatter/gather lists longer than number of hardware buffer descriptors in
the DMA channel's descriptor list.The current implementation of Tsi721 DMA transfers requires that number of
entries in a scatter/gather list provided by a caller of
dmaengine_prep_rio_sg() should not exceed number of allocated hardware
buffer descriptors.This patch removes the limitation by processing long scatter/gather lists
by sections that can be transferred using hardware descriptor ring of
configured size. It also introduces a module parameter
"dma_desc_per_channel" to allow run-time configuration of Tsi721 hardware
buffer descriptor rings.Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Stef van Os
Cc: Vinod Koul
Cc: Dan Williams
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Apr, 2014
1 commit
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This patch removes an artificial RapidIO bus root device and establishes
actual device hierarchy by providing reference to real parent devices.
It also introduces device class for RapidIO controller devices (on-chip
or an eternal bridge, known as "mport").Existing implementation was sufficient for SoC-based platforms that have
a single RapidIO controller. With introduction of devices using
multiple RapidIO controllers and PCIe-to-RapidIO bridges the old scheme
is very limiting or does not work at all. The implemented changes allow
to properly reference platform's local RapidIO mport devices and provide
device details needed for upper layers.This change to RapidIO device hierarchy does not break any known
existing kernel or user space interfaces.Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Li Yang
Cc: Kumar Gala
Cc: Andre van Herk
Cc: Stef van Os
Cc: Jerry Jacobs
Cc: Arno Tiemersma
Cc: Rob Landley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jul, 2013
1 commit
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Correct typo (double words) in documentations.
Signed-off-by: Masanari Iida
Acked-by: Randy Dunlap
Signed-off-by: Jiri Kosina
04 Jul, 2013
1 commit
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Update RapidIO documentation files to reflect modularization changes.
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Li Yang
Cc: Kumar Gala
Cc: Andre van Herk
Cc: Micha Nelissen
Cc: Stef van Os
Cc: Jean Delvare
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 May, 2013
1 commit
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Update RapidIO documentation to reflect changes made to
enumeration/discovery build configuration and user space triggering
mechanism.Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Li Yang
Cc: Kumar Gala
Cc: Andre van Herk
Cc: Micha Nelissen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Nov, 2011
2 commits
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Update rapidio.txt to reflect changes from recent patch.
See http://marc.info/?l=linux-kernel&m=131285620113589&w=2 for details.Signed-off-by: Alexandre Bounine
Cc: Liu Gang
Cc: Micha Nelissen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add RapidIO mport driver for IDT TSI721 PCI Express-to-SRIO bridge device.
The driver provides full set of callback functions defined for mport
devices in RapidIO subsystem. It also is compatible with current version
of RIONET driver (Ethernet over RapidIO messaging services).This patch is applicable to kernel versions starting from 2.6.39.
Signed-off-by: Alexandre Bounine
Signed-off-by: Chul Kim
Cc: Kumar Gala
Cc: Matt Porter
Cc: Li Yang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Mar, 2011
1 commit
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Add RapidIO documentation files as it was discussed earlier (see thread
http://marc.info/?l=linux-kernel&m=129202338918062&w=2)Signed-off-by: Alexandre Bounine
Cc: Kumar Gala
Cc: Matt Porter
Cc: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds