IB: Enable FMR pool user to set page size
This patch allows the consumer to set the page size of "pages" mapped
by the pool FMRs, which is a feature already existing in the base
verbs API. On the cosmetic side it changes ib_fmr_attr.page_size field
to be named page_shift.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/include/rdma/ib_fmr_pool.h b/include/rdma/ib_fmr_pool.h
index 86b7e93..4ace54c 100644
--- a/include/rdma/ib_fmr_pool.h
+++ b/include/rdma/ib_fmr_pool.h
@@ -43,6 +43,7 @@
/**
* struct ib_fmr_pool_param - Parameters for creating FMR pool
* @max_pages_per_fmr:Maximum number of pages per map request.
+ * @page_shift: Log2 of sizeof "pages" mapped by this fmr
* @access:Access flags for FMRs in pool.
* @pool_size:Number of FMRs to allocate for pool.
* @dirty_watermark:Flush is triggered when @dirty_watermark dirty
@@ -55,6 +56,7 @@
*/
struct ib_fmr_pool_param {
int max_pages_per_fmr;
+ int page_shift;
enum ib_access_flags access;
int pool_size;
int dirty_watermark;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 1d31c8c..61a4390 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -651,7 +651,7 @@
struct ib_fmr_attr {
int max_pages;
int max_maps;
- u8 page_size;
+ u8 page_shift;
};
struct ib_ucontext {