diff options
Diffstat (limited to 'drivers/infiniband/sw/rdmavt/mmap.c')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/mmap.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/infiniband/sw/rdmavt/mmap.c b/drivers/infiniband/sw/rdmavt/mmap.c index 49180c4eb76e..273974fb7d1f 100644 --- a/drivers/infiniband/sw/rdmavt/mmap.c +++ b/drivers/infiniband/sw/rdmavt/mmap.c @@ -51,6 +51,10 @@ #include <asm/pgtable.h> #include "mmap.h" +/** + * rvt_mmap_init - init link list and lock for mem map + * @rdi: rvt dev struct + */ void rvt_mmap_init(struct rvt_dev_info *rdi) { INIT_LIST_HEAD(&rdi->pending_mmaps); @@ -78,10 +82,6 @@ void rvt_release_mmap_info(struct kref *ref) } EXPORT_SYMBOL(rvt_release_mmap_info); -/* - * open and close keep track of how many times the CQ is mapped, - * to avoid releasing it. - */ static void rvt_vma_open(struct vm_area_struct *vma) { struct rvt_mmap_info *ip = vma->vm_private_data; @@ -105,7 +105,8 @@ static const struct vm_operations_struct rvt_vm_ops = { * rvt_mmap - create a new mmap region * @context: the IB user context of the process making the mmap() call * @vma: the VMA to be initialized - * Return zero if the mmap is OK. Otherwise, return an errno. + * + * Return: zero if the mmap is OK. Otherwise, return an errno. */ int rvt_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) { @@ -147,8 +148,14 @@ done: } EXPORT_SYMBOL(rvt_mmap); -/* - * Allocate information for hfi1_mmap +/** + * rvt_create_mmap_info - allocate information for hfi1_mmap + * @rdi: rvt dev struct + * @size: size in bytes to map + * @context: user context + * @obj: opaque pointer to a cq, wq etc + * + * Return: rvt_mmap struct on success */ struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi, u32 size, @@ -180,6 +187,13 @@ struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi, } EXPORT_SYMBOL(rvt_create_mmap_info); +/** + * rvt_update_mmap_info - update a mem map + * @rdi: rvt dev struct + * @ip: mmap info pointer + * @size: size to grow by + * @obj: opaque pointer to cq, wq, etc. + */ void rvt_update_mmap_info(struct rvt_dev_info *rdi, struct rvt_mmap_info *ip, u32 size, void *obj) { |