summaryrefslogtreecommitdiff
path: root/drivers/infiniband/hw/ipath/ipath_mr.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_mr.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_mr.c39
1 files changed, 17 insertions, 22 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_mr.c b/drivers/infiniband/hw/ipath/ipath_mr.c
index e346d3890a0e..5e61e9bff697 100644
--- a/drivers/infiniband/hw/ipath/ipath_mr.c
+++ b/drivers/infiniband/hw/ipath/ipath_mr.c
@@ -188,8 +188,8 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
{
struct ipath_mr *mr;
struct ib_umem *umem;
- struct ib_umem_chunk *chunk;
- int n, m, i;
+ int n, m, entry;
+ struct scatterlist *sg;
struct ib_mr *ret;
if (length == 0) {
@@ -202,10 +202,7 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
if (IS_ERR(umem))
return (void *) umem;
- n = 0;
- list_for_each_entry(chunk, &umem->chunk_list, list)
- n += chunk->nents;
-
+ n = umem->nmap;
mr = alloc_mr(n, &to_idev(pd->device)->lk_table);
if (!mr) {
ret = ERR_PTR(-ENOMEM);
@@ -224,22 +221,20 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
m = 0;
n = 0;
- list_for_each_entry(chunk, &umem->chunk_list, list) {
- for (i = 0; i < chunk->nents; i++) {
- void *vaddr;
-
- vaddr = page_address(sg_page(&chunk->page_list[i]));
- if (!vaddr) {
- ret = ERR_PTR(-EINVAL);
- goto bail;
- }
- mr->mr.map[m]->segs[n].vaddr = vaddr;
- mr->mr.map[m]->segs[n].length = umem->page_size;
- n++;
- if (n == IPATH_SEGSZ) {
- m++;
- n = 0;
- }
+ for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
+ void *vaddr;
+
+ vaddr = page_address(sg_page(sg));
+ if (!vaddr) {
+ ret = ERR_PTR(-EINVAL);
+ goto bail;
+ }
+ mr->mr.map[m]->segs[n].vaddr = vaddr;
+ mr->mr.map[m]->segs[n].length = umem->page_size;
+ n++;
+ if (n == IPATH_SEGSZ) {
+ m++;
+ n = 0;
}
}
ret = &mr->ibmr;