IB: remove support for phys MRs

We have stopped using phys MRs in the kernel a while ago, so let's
remove all the cruft used to implement them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core]
Reviewed-By: Devesh Sharma<devesh.sharma@avagotech.com> [ocrdma]
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

3 files changed, 1 insertions, 55 deletions

diff --git a/drivers/infiniband/hw/qib/qib_mr.c b/drivers/infiniband/hw/qib/qib_mr.c
index 294f5c706be9..5f53304e8a9b 100644
--- a/drivers/infiniband/hw/qib/qib_mr.c
+++ b/drivers/infiniband/hw/qib/qib_mr.c
@@ -150,10 +150,7 @@ static struct qib_mr *alloc_mr(int count, struct ib_pd *pd)
 	rval = init_qib_mregion(&mr->mr, pd, count);
 	if (rval)
 		goto bail;
-	/*
-	 * ib_reg_phys_mr() will initialize mr->ibmr except for
-	 * lkey and rkey.
-	 */
+
 	rval = qib_alloc_lkey(&mr->mr, 0);
 	if (rval)
 		goto bail_mregion;
@@ -171,52 +168,6 @@ bail:
 }
 
 /**
- * qib_reg_phys_mr - register a physical memory region
- * @pd: protection domain for this memory region
- * @buffer_list: pointer to the list of physical buffers to register
- * @num_phys_buf: the number of physical buffers to register
- * @iova_start: the starting address passed over IB which maps to this MR
- *
- * Returns the memory region on success, otherwise returns an errno.
- */
-struct ib_mr *qib_reg_phys_mr(struct ib_pd *pd,
-			      struct ib_phys_buf *buffer_list,
-			      int num_phys_buf, int acc, u64 *iova_start)
-{
-	struct qib_mr *mr;
-	int n, m, i;
-	struct ib_mr *ret;
-
-	mr = alloc_mr(num_phys_buf, pd);
-	if (IS_ERR(mr)) {
-		ret = (struct ib_mr *)mr;
-		goto bail;
-	}
-
-	mr->mr.user_base = *iova_start;
-	mr->mr.iova = *iova_start;
-	mr->mr.access_flags = acc;
-
-	m = 0;
-	n = 0;
-	for (i = 0; i < num_phys_buf; i++) {
-		mr->mr.map[m]->segs[n].vaddr = (void *) buffer_list[i].addr;
-		mr->mr.map[m]->segs[n].length = buffer_list[i].size;
-		mr->mr.length += buffer_list[i].size;
-		n++;
-		if (n == QIB_SEGSZ) {
-			m++;
-			n = 0;
-		}
-	}
-
-	ret = &mr->ibmr;
-
-bail:
-	return ret;
-}
-
-/**
  * qib_reg_user_mr - register a userspace memory region
  * @pd: protection domain for this memory region
  * @start: starting userspace address
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index de6cb6fcda8d..0e020e2ceed2 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -2256,7 +2256,6 @@ int qib_register_ib_device(struct qib_devdata *dd)
 	ibdev->poll_cq = qib_poll_cq;
 	ibdev->req_notify_cq = qib_req_notify_cq;
 	ibdev->get_dma_mr = qib_get_dma_mr;
-	ibdev->reg_phys_mr = qib_reg_phys_mr;
 	ibdev->reg_user_mr = qib_reg_user_mr;
 	ibdev->dereg_mr = qib_dereg_mr;
 	ibdev->alloc_mr = qib_alloc_mr;
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h
index bc803f33d5f6..6c5e77753d85 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.h
+++ b/drivers/infiniband/hw/qib/qib_verbs.h
@@ -1032,10 +1032,6 @@ int qib_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata);
 
 struct ib_mr *qib_get_dma_mr(struct ib_pd *pd, int acc);
 
-struct ib_mr *qib_reg_phys_mr(struct ib_pd *pd,
-			      struct ib_phys_buf *buffer_list,
-			      int num_phys_buf, int acc, u64 *iova_start);
-
 struct ib_mr *qib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 			      u64 virt_addr, int mr_access_flags,
 			      struct ib_udata *udata);