linux-toradex.git/drivers/rapidio/devices, branch v3.6

rapidio/tsi721: fix unused variable compiler warning

2012-08-21T23:45:03+00:00

Fix unused variable compiler warning when built with CONFIG_RAPIDIO_DEBUG
option off.

This patch is applicable to kernel versions starting from v3.2

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: fix inbound doorbell interrupt handling

2012-08-21T23:45:03+00:00

Make sure that there is no doorbell messages left behind due to disabled
interrupts during inbound doorbell processing.

The most common case for this bug is loss of rionet JOIN messages in
systems with three or more rionet participants and MSI or MSI-X enabled.
As result, requests for packet transfers may finish with "destination
unreachable" error message.

This patch is applicable to kernel versions starting from v3.2.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: add DMA engine support

2012-06-01T00:49:31+00:00

Adds support for DMA Engine API into Tsi721 mport driver.

Includes following changes for Tsi721 driver:
- Modifies BDMA register offset definitions to support per-channel handling
- Separates BDMA channel reserved for RIO Maintenance requests
- Adds DMA Engine callback routines

Signed-off-by: Alexandre Bounine 
Cc: Dan Williams 
Cc: Vinod Koul 
Cc: Li Yang 
Cc: Matt Porter 
Cc: Paul Gortmaker 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: fix bug in register offset definitions

2012-03-16T00:03:03+00:00

Fix indexed register offset definitions that use decimal (wrong) instead
of hexadecimal (correct) notation for indexing multipliers.

Incorrect definitions do not affect Tsi721 driver in its current default
configuration because it uses only IDB queue 0.  Loss of inbound
doorbell functionality should be observed if queue other than 0 is used.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Cc: Chul Kim 
Cc: 		[3.2+]
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: fix queue wrapping bug in inbound doorbell handler

2012-03-05T23:49:43+00:00

Fix a bug that causes a kernel panic when the number of received doorbells
is larger than number of entries in the inbound doorbell queue (current
default value = 512).

Another possible indication for this bug is large number of spurious
doorbells reported by tsi721 driver after reaching the queue size maximum.

Signed-off-by: Alexandre Bounine 
Cc: Chul Kim 
Cc: Matt Porter 
Cc: 		[3.2.x+]
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: modify PCIe capability settings

2011-12-09T15:50:29+00:00

Modify initialization of PCIe capability registers in Tsi721 mport driver:
 - change Completion Timeout value to avoid unexpected data transfer
   aborts during intensive traffic.
 - replace hardcoded offset of PCIe capability block by making it use the
   common function.

This patch is applicable to kernel versions starting from 3.2-rc1.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: fix mailbox resource reporting

2011-12-09T15:50:29+00:00

Bug fix for Tsi721 RapidIO mport driver: Tsi721 supports four RapidIO
mailboxes (MBOX0 - MBOX3) as defined by RapidIO specification.  Mailbox
resources has to be properly reported to allow use of all available
mailboxes (initial version reports only MBOX0).

This patch is applicable to kernel versions staring from 3.2-rc1.

Signed-off-by: Alexandre Bounine 
Cc: Matt Porter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rapidio/tsi721: switch to dma_zalloc_coherent

2011-12-09T15:50:29+00:00

Replace the pair dma_alloc_coherent()+memset() with the new
dma_zalloc_coherent() added by Andrew Morton for kernel version 3.2

Signed-off-by: Alexandre Bounine 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

RapidIO: add mport driver for Tsi721 bridge

2011-11-02T23:07:01+00:00

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