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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2010-10-27 15:34:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:03:15 -0700 |
| commit | 6429cd49f45450cd77a57b70b0dfa98fe2794da0 (patch) | |
| tree | 1d17827eb9d7163855e8836e4835b32475d72a95 /drivers/rapidio/rio.h | |
| parent | ac38d7232dfa3c71b129bab3318ba327bbcf8405 (diff) | |
| download | blackbird-op-linux-6429cd49f45450cd77a57b70b0dfa98fe2794da0.tar.gz blackbird-op-linux-6429cd49f45450cd77a57b70b0dfa98fe2794da0.zip | |
rapidio: add handling of orphan port-write message
Add check for access to port-write (PW) message source device before
processing the PW message. If source RIO device is not available (power
down or RIO link failure) trace back to a last available switch/port on
the PW message route and service failure at that point.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Micha Nelissen <micha@neli.hopto.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio/rio.h')
| -rw-r--r-- | drivers/rapidio/rio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h index f27b7a9c47d2..bc71ba1d239e 100644 --- a/drivers/rapidio/rio.h +++ b/drivers/rapidio/rio.h @@ -14,6 +14,8 @@ #include <linux/list.h> #include <linux/rio.h> +#define RIO_MAX_CHK_RETRY 3 + /* Functions internal to the RIO core code */ extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid, |
