From af84ca38aff94061dd0711edbb99b0900a9c28fd Mon Sep 17 00:00:00 2001 From: Alexandre Bounine Date: Wed, 27 Oct 2010 15:34:34 -0700 Subject: rapidio: add handling of redundant routes Detects RIO link to the already enumerated device and properly sets links between device objects. Changes to the enumeration/discovery logic: 1. Use Master Enable bit to signal end of the enumeration - agents may start their discovery process as soon as they see this bit set (Component Tag register was used before for this purpose). 2. Enumerator sets Component Tag (!= 0) immediately during device setup. This allows to identify the device if the redundant route exists in a RIO system. Signed-off-by: Alexandre Bounine Cc: Thomas Moll Cc: Matt Porter Cc: Li Yang Cc: Kumar Gala Cc: Micha Nelissen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rio.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/rio.h') diff --git a/include/linux/rio.h b/include/linux/rio.h index 4fa5e3d2b117..0bed941f9b13 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -177,6 +177,7 @@ enum rio_phy_type { * @index: Port index, unique among all port interfaces of the same type * @sys_size: RapidIO common transport system size * @phy_type: RapidIO phy type + * @phys_efptr: RIO port extended features pointer * @name: Port name string * @priv: Master port private data */ @@ -198,6 +199,7 @@ struct rio_mport { * 1 - Large size, 65536 devices. */ enum rio_phy_type phy_type; /* RapidIO phy type */ + u32 phys_efptr; unsigned char name[40]; void *priv; /* Master port private data */ }; -- cgit v1.2.3