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ehea: Add DLPAR memory remove support

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The eHEA driver uses the recently modified walk_memory_resource for powerpc
functionality to detect the memory layout. It further uses the memory hotplug
notifiers to catch memory hotplug events.

Signed-off-by: Hannes Hering <hering2@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Hannes Hering
2008-05-07 14:43:36 +02:00
committed by Jeff Garzik
parent fb7b6ca2b6
commit 48cfb14f8b
3 changed files with 249 additions and 79 deletions
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27
drivers/net/ehea/ehea.h
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@@ -40,7 +40,7 @@
#include <asm/io.h>
#define DRV_NAME "ehea"
#define DRV_VERSION "EHEA_0090"
#define DRV_VERSION "EHEA_0091"
/* eHEA capability flags */
#define DLPAR_PORT_ADD_REM 1
@@ -118,6 +118,13 @@
#define EHEA_MR_ACC_CTRL 0x00800000
#define EHEA_BUSMAP_START 0x8000000000000000ULL
#define EHEA_INVAL_ADDR 0xFFFFFFFFFFFFFFFFULL
#define EHEA_DIR_INDEX_SHIFT 13 /* 8k Entries in 64k block */
#define EHEA_TOP_INDEX_SHIFT (EHEA_DIR_INDEX_SHIFT * 2)
#define EHEA_MAP_ENTRIES (1 << EHEA_DIR_INDEX_SHIFT)
#define EHEA_MAP_SIZE (0x10000) /* currently fixed map size */
#define EHEA_INDEX_MASK (EHEA_MAP_ENTRIES - 1)
#define EHEA_WATCH_DOG_TIMEOUT 10*HZ
@@ -192,10 +199,20 @@ struct h_epas {
set to 0 if unused */
};
struct ehea_busmap {
unsigned int entries; /* total number of entries */
unsigned int valid_sections; /* number of valid sections */
u64 *vaddr;
/*
* Memory map data structures
*/
struct ehea_dir_bmap
{
u64 ent[EHEA_MAP_ENTRIES];
};
struct ehea_top_bmap
{
struct ehea_dir_bmap *dir[EHEA_MAP_ENTRIES];
};
struct ehea_bmap
{
struct ehea_top_bmap *top[EHEA_MAP_ENTRIES];
};
struct ehea_qp;