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authorAlexandre Bounine <alexandre.bounine@idt.com>2010-10-27 15:34:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-27 18:03:15 -0700
commitae05cbd5adef897d405ce8f90484c1239f79e086 (patch)
tree1b235d02a42e40ae2071f2ce0983de1f0feadaf1 /include
parent93e2cbd24e71f5eedf6e49e075973fda9b2135e8 (diff)
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rapidio: use stored ingress port number instead of register read
The switch port information is obtained and stored during RIO device setup. Therefore repeated reads from Switch Port Information CAR may be removed. 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')
-rw-r--r--include/linux/rio.h4
-rw-r--r--include/linux/rio_regs.h2
2 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/rio.h b/include/linux/rio.h
index 84c9f8c5fb2..ffdfe5ad43b 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -112,7 +112,7 @@ struct rio_dev {
u16 asm_rev;
u16 efptr;
u32 pef;
- u32 swpinfo; /* Only used for switches */
+ u32 swpinfo;
u32 src_ops;
u32 dst_ops;
u32 comp_tag;
@@ -219,6 +219,7 @@ struct rio_net {
/**
* struct rio_switch - RIO switch info
* @node: Node in global list of switches
+ * @rdev: Associated RIO device structure
* @switchid: Switch ID that is unique across a network
* @hopcount: Hopcount to this switch
* @destid: Associated destid in the path
@@ -234,6 +235,7 @@ struct rio_net {
*/
struct rio_switch {
struct list_head node;
+ struct rio_dev *rdev;
u16 switchid;
u16 hopcount;
u16 destid;
diff --git a/include/linux/rio_regs.h b/include/linux/rio_regs.h
index aedee0489fb..be80b1b2181 100644
--- a/include/linux/rio_regs.h
+++ b/include/linux/rio_regs.h
@@ -33,6 +33,7 @@
#define RIO_PEF_MEMORY 0x40000000 /* [I] MMIO */
#define RIO_PEF_PROCESSOR 0x20000000 /* [I] Processor */
#define RIO_PEF_SWITCH 0x10000000 /* [I] Switch */
+#define RIO_PEF_MULTIPORT 0x08000000 /* [VI, 2.1] Multiport */
#define RIO_PEF_INB_MBOX 0x00f00000 /* [II] Mailboxes */
#define RIO_PEF_INB_MBOX0 0x00800000 /* [II] Mailbox 0 */
#define RIO_PEF_INB_MBOX1 0x00400000 /* [II] Mailbox 1 */
@@ -51,6 +52,7 @@
#define RIO_SWP_INFO_PORT_TOTAL_MASK 0x0000ff00 /* [I] Total number of ports */
#define RIO_SWP_INFO_PORT_NUM_MASK 0x000000ff /* [I] Maintenance transaction port number */
#define RIO_GET_TOTAL_PORTS(x) ((x & RIO_SWP_INFO_PORT_TOTAL_MASK) >> 8)
+#define RIO_GET_PORT_NUM(x) (x & RIO_SWP_INFO_PORT_NUM_MASK)
#define RIO_SRC_OPS_CAR 0x18 /* [I] Source Operations CAR */
#define RIO_SRC_OPS_READ 0x00008000 /* [I] Read op */