IB/core: add a need_inval flag to struct ib_mr

This is the first step toward moving MR invalidation decisions
to the core.  It will be needed by the upcoming RW API.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 8549345..76c9c3f 100644 (file)
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1353,6 +1353,7 @@ struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags)
                mr->pd      = pd;
                mr->uobject = NULL;
                atomic_inc(&pd->usecnt);
+               mr->need_inval = false;
        }
 
        return mr;
@@ -1399,6 +1400,7 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
                mr->pd      = pd;
                mr->uobject = NULL;
                atomic_inc(&pd->usecnt);
+               mr->need_inval = false;
        }
 
        return mr;

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 400a8a0..3f66647 100644 (file)
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1446,6 +1446,7 @@ struct ib_mr {
        u64                iova;
        u32                length;
        unsigned int       page_size;
+       bool               need_inval;
        union {
                struct ib_uobject       *uobject;       /* user */
                struct list_head        qp_entry;       /* FR */