diff options
Diffstat (limited to 'sys/compat/ndis/ntoskrnl_var.h')
| -rw-r--r-- | sys/compat/ndis/ntoskrnl_var.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/compat/ndis/ntoskrnl_var.h b/sys/compat/ndis/ntoskrnl_var.h index 9447d1b..5d87ff3 100644 --- a/sys/compat/ndis/ntoskrnl_var.h +++ b/sys/compat/ndis/ntoskrnl_var.h @@ -40,6 +40,20 @@ #define SPAN_PAGES(ptr, len) \ ((uint32_t)((((uintptr_t)(ptr) & (PAGE_SIZE -1)) + \ (len) + (PAGE_SIZE - 1)) >> PAGE_SHIFT)) +#define PAGE_ALIGN(ptr) \ + ((void *)((uintptr_t)(ptr) & ~(PAGE_SIZE - 1))) +#define BYTE_OFFSET(ptr) \ + ((uint32_t)((uintptr_t)(ptr) & (PAGE_SIZE - 1))) +#define MDL_INIT(b, baseva, len) \ + (b)->nb_next = NULL; \ + (b)->nb_size = (uint16_t)(sizeof(struct ndis_buffer) + \ + (sizeof(uint32_t) * SPAN_PAGES((baseva), (len)))); \ + (b)->nb_flags = 0; \ + (b)->nb_startva = (void *)PAGE_ALIGN((baseva)); \ + (b)->nb_byteoffset = BYTE_OFFSET((baseva)); \ + (b)->nb_bytecount = (uint32_t)(len); +#define MDL_VA(b) \ + ((void *)((char *)((b)->nb_startva) + (b)->nb_byteoffset)) typedef uint32_t kspin_lock; |
