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authorAlexandre Bounine <alexandre.bounine@idt.com>2016-08-02 14:06:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 19:35:34 -0400
commite519685de3e44bb013d81f5ead04ac4b33c9b3a1 (patch)
tree27519f32fb0941337133f594082a7cf8882f1076 /Documentation/rapidio
parentcb782cdd2ffffbf7fd17e4aefb20f4db5c67caeb (diff)
downloadlinux-e519685de3e44bb013d81f5ead04ac4b33c9b3a1.tar.bz2
rapidio/tsi721: add messaging mbox selector parameter
Add module parameter to allow load time configuration of available RapidIO messaging mailboxes (MBOX1 - MBOX4). Having a messaging MBOX selector mask allows to define which MBOXes are controlled by the mport device driver and reserve some of them for direct use by other drivers. Link: http://lkml.kernel.org/r/1469125134-16523-7-git-send-email-alexandre.bounine@idt.com Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Tested-by: Barry Wood <barry.wood@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Barry Wood <barry.wood@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/rapidio')
-rw-r--r--Documentation/rapidio/tsi721.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/rapidio/tsi721.txt b/Documentation/rapidio/tsi721.txt
index 9c6ee3853793..cd2a2935d51d 100644
--- a/Documentation/rapidio/tsi721.txt
+++ b/Documentation/rapidio/tsi721.txt
@@ -46,6 +46,11 @@ fully compatible with RIONET driver (Ethernet over RapidIO messaging services).
0 = 128B, 1 = 256B, 2 = 512B, 3 = 1024B, 4 = 2048B and 5 = 4096B.
Default value is '-1' (= keep platform setting).
+- 'mbox_sel' - RIO messaging MBOX selection mask. This is a bitmask that defines
+ messaging MBOXes are managed by this device driver. Mask bits 0 - 3
+ correspond to MBOX0 - MBOX3. MBOX is under driver's control if the
+ corresponding bit is set to '1'. Default value is 0x0f (= all).
+
II. Known problems
None.