IB/qib: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in qib_mr and populate it when
qib_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by duplicating qib_fastreg_mr just take the needed information
from different places:
- page_size, iova, length (ib_mr)
- page array (qib_mr)
- key, access flags (ib_reg_wr)
The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h
index 8aa1685..648f6c6 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.h
+++ b/drivers/infiniband/hw/qib/qib_verbs.h
@@ -330,6 +330,8 @@
struct ib_mr ibmr;
struct ib_umem *umem;
struct qib_mregion mr; /* must be last */
+ u64 *pages;
+ u32 npages;
};
/*
@@ -341,6 +343,7 @@
union {
struct ib_send_wr wr; /* don't use wr.sg_list */
struct ib_ud_wr ud_wr;
+ struct ib_reg_wr reg_wr;
struct ib_fast_reg_wr fast_reg_wr;
struct ib_rdma_wr rdma_wr;
struct ib_atomic_wr atomic_wr;
@@ -1044,12 +1047,17 @@
enum ib_mr_type mr_type,
u32 max_entries);
+int qib_map_mr_sg(struct ib_mr *ibmr,
+ struct scatterlist *sg,
+ int sg_nents);
+
struct ib_fast_reg_page_list *qib_alloc_fast_reg_page_list(
struct ib_device *ibdev, int page_list_len);
void qib_free_fast_reg_page_list(struct ib_fast_reg_page_list *pl);
int qib_fast_reg_mr(struct qib_qp *qp, struct ib_send_wr *wr);
+int qib_reg_mr(struct qib_qp *qp, struct ib_reg_wr *wr);
struct ib_fmr *qib_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
struct ib_fmr_attr *fmr_attr);