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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2010-10-27 15:34:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:03:15 -0700 |
| commit | 68fe4df5d21294401959fa61d5a7094705ed8f6f (patch) | |
| tree | 28cd3609514f3a7b1e78e627b069aa5669bc7fd0 /include/linux/rio.h | |
| parent | ae05cbd5adef897d405ce8f90484c1239f79e086 (diff) | |
| download | op-kernel-dev-68fe4df5d21294401959fa61d5a7094705ed8f6f.zip op-kernel-dev-68fe4df5d21294401959fa61d5a7094705ed8f6f.tar.gz | |
rapidio: add relation links between RIO device structures
Create back and forward links between RIO devices. These links are
intended for use by error management and hot-plug extensions. Links for
redundant RIO connections between switches are not set (will be fixed in a
separate patch).
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 'include/linux/rio.h')
| -rw-r--r-- | include/linux/rio.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/rio.h b/include/linux/rio.h index ffdfe5a..8d9e66d 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -99,6 +99,7 @@ union rio_pw_msg; * @riores: RIO resources this device owns * @pwcback: port-write callback function for this device * @destid: Network destination ID + * @prev: Previous RIO device connected to the current one */ struct rio_dev { struct list_head global_list; /* node in list of all RIO devices */ @@ -125,6 +126,7 @@ struct rio_dev { struct resource riores[RIO_MAX_DEV_RESOURCES]; int (*pwcback) (struct rio_dev *rdev, union rio_pw_msg *msg, int step); u16 destid; + struct rio_dev *prev; }; #define rio_dev_g(n) list_entry(n, struct rio_dev, global_list) @@ -232,6 +234,7 @@ struct rio_net { * @get_domain: Callback for switch-specific domain get function * @em_init: Callback for switch-specific error management initialization function * @em_handle: Callback for switch-specific error management handler function + * @nextdev: Array of per-port pointers to the next attached device */ struct rio_switch { struct list_head node; @@ -253,6 +256,7 @@ struct rio_switch { u8 *sw_domain); int (*em_init) (struct rio_dev *dev); int (*em_handle) (struct rio_dev *dev, u8 swport); + struct rio_dev *nextdev[0]; }; /* Low-level architecture-dependent routines */ |
