1 files changed, 3 insertions, 165 deletions

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index da55cda30568..4318c04e095c 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1858,8 +1858,8 @@ rpcrdma_free_regbuf(struct rpcrdma_ia *ia, struct rpcrdma_regbuf *rb)
  * Wrappers for chunk registration, shared by read/write chunk code.
  */
 
-static void
-rpcrdma_map_one(struct rpcrdma_ia *ia, struct rpcrdma_mr_seg *seg, int writing)
+void
+rpcrdma_map_one(struct rpcrdma_ia *ia, struct rpcrdma_mr_seg *seg, bool writing)
 {
 	seg->mr_dir = writing ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
 	seg->mr_dmalen = seg->mr_len;
@@ -1879,7 +1879,7 @@ rpcrdma_map_one(struct rpcrdma_ia *ia, struct rpcrdma_mr_seg *seg, int writing)
 	}
 }
 
-static void
+void
 rpcrdma_unmap_one(struct rpcrdma_ia *ia, struct rpcrdma_mr_seg *seg)
 {
 	if (seg->mr_page)
@@ -1891,89 +1891,6 @@ rpcrdma_unmap_one(struct rpcrdma_ia *ia, struct rpcrdma_mr_seg *seg)
 }
 
 static int
-rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
-			int *nsegs, int writing, struct rpcrdma_ia *ia,
-			struct rpcrdma_xprt *r_xprt)
-{
-	struct rpcrdma_mr_seg *seg1 = seg;
-	struct rpcrdma_mw *mw = seg1->rl_mw;
-	struct rpcrdma_frmr *frmr = &mw->r.frmr;
-	struct ib_mr *mr = frmr->fr_mr;
-	struct ib_send_wr fastreg_wr, *bad_wr;
-	u8 key;
-	int len, pageoff;
-	int i, rc;
-	int seg_len;
-	u64 pa;
-	int page_no;
-
-	pageoff = offset_in_page(seg1->mr_offset);
-	seg1->mr_offset -= pageoff;	/* start of page */
-	seg1->mr_len += pageoff;
-	len = -pageoff;
-	if (*nsegs > ia->ri_max_frmr_depth)
-		*nsegs = ia->ri_max_frmr_depth;
-	for (page_no = i = 0; i < *nsegs;) {
-		rpcrdma_map_one(ia, seg, writing);
-		pa = seg->mr_dma;
-		for (seg_len = seg->mr_len; seg_len > 0; seg_len -= PAGE_SIZE) {
-			frmr->fr_pgl->page_list[page_no++] = pa;
-			pa += PAGE_SIZE;
-		}
-		len += seg->mr_len;
-		++seg;
-		++i;
-		/* Check for holes */
-		if ((i < *nsegs && offset_in_page(seg->mr_offset)) ||
-		    offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
-			break;
-	}
-	dprintk("RPC:       %s: Using frmr %p to map %d segments (%d bytes)\n",
-		__func__, mw, i, len);
-
-	frmr->fr_state = FRMR_IS_VALID;
-
-	memset(&fastreg_wr, 0, sizeof(fastreg_wr));
-	fastreg_wr.wr_id = (unsigned long)(void *)mw;
-	fastreg_wr.opcode = IB_WR_FAST_REG_MR;
-	fastreg_wr.wr.fast_reg.iova_start = seg1->mr_dma + pageoff;
-	fastreg_wr.wr.fast_reg.page_list = frmr->fr_pgl;
-	fastreg_wr.wr.fast_reg.page_list_len = page_no;
-	fastreg_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
-	fastreg_wr.wr.fast_reg.length = len;
-
-	/* Bump the key */
-	key = (u8)(mr->rkey & 0x000000FF);
-	ib_update_fast_reg_key(mr, ++key);
-
-	fastreg_wr.wr.fast_reg.access_flags = (writing ?
-				IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
-				IB_ACCESS_REMOTE_READ);
-	fastreg_wr.wr.fast_reg.rkey = mr->rkey;
-	DECR_CQCOUNT(&r_xprt->rx_ep);
-
-	rc = ib_post_send(ia->ri_id->qp, &fastreg_wr, &bad_wr);
-	if (rc) {
-		dprintk("RPC:       %s: failed ib_post_send for register,"
-			" status %i\n", __func__, rc);
-		ib_update_fast_reg_key(mr, --key);
-		goto out_err;
-	} else {
-		seg1->mr_rkey = mr->rkey;
-		seg1->mr_base = seg1->mr_dma + pageoff;
-		seg1->mr_nsegs = i;
-		seg1->mr_len = len;
-	}
-	*nsegs = i;
-	return 0;
-out_err:
-	frmr->fr_state = FRMR_IS_INVALID;
-	while (i--)
-		rpcrdma_unmap_one(ia, --seg);
-	return rc;
-}
-
-static int
 rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg,
 			struct rpcrdma_ia *ia, struct rpcrdma_xprt *r_xprt)
 {
@@ -2004,49 +1921,6 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg,
 }
 
 static int
-rpcrdma_register_fmr_external(struct rpcrdma_mr_seg *seg,
-			int *nsegs, int writing, struct rpcrdma_ia *ia)
-{
-	struct rpcrdma_mr_seg *seg1 = seg;
-	u64 physaddrs[RPCRDMA_MAX_DATA_SEGS];
-	int len, pageoff, i, rc;
-
-	pageoff = offset_in_page(seg1->mr_offset);
-	seg1->mr_offset -= pageoff;	/* start of page */
-	seg1->mr_len += pageoff;
-	len = -pageoff;
-	if (*nsegs > RPCRDMA_MAX_DATA_SEGS)
-		*nsegs = RPCRDMA_MAX_DATA_SEGS;
-	for (i = 0; i < *nsegs;) {
-		rpcrdma_map_one(ia, seg, writing);
-		physaddrs[i] = seg->mr_dma;
-		len += seg->mr_len;
-		++seg;
-		++i;
-		/* Check for holes */
-		if ((i < *nsegs && offset_in_page(seg->mr_offset)) ||
-		    offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
-			break;
-	}
-	rc = ib_map_phys_fmr(seg1->rl_mw->r.fmr, physaddrs, i, seg1->mr_dma);
-	if (rc) {
-		dprintk("RPC:       %s: failed ib_map_phys_fmr "
-			"%u@0x%llx+%i (%d)... status %i\n", __func__,
-			len, (unsigned long long)seg1->mr_dma,
-			pageoff, i, rc);
-		while (i--)
-			rpcrdma_unmap_one(ia, --seg);
-	} else {
-		seg1->mr_rkey = seg1->rl_mw->r.fmr->rkey;
-		seg1->mr_base = seg1->mr_dma + pageoff;
-		seg1->mr_nsegs = i;
-		seg1->mr_len = len;
-	}
-	*nsegs = i;
-	return rc;
-}
-
-static int
 rpcrdma_deregister_fmr_external(struct rpcrdma_mr_seg *seg,
 			struct rpcrdma_ia *ia)
 {
@@ -2067,42 +1941,6 @@ rpcrdma_deregister_fmr_external(struct rpcrdma_mr_seg *seg,
 }
 
 int
-rpcrdma_register_external(struct rpcrdma_mr_seg *seg,
-			int nsegs, int writing, struct rpcrdma_xprt *r_xprt)
-{
-	struct rpcrdma_ia *ia = &r_xprt->rx_ia;
-	int rc = 0;
-
-	switch (ia->ri_memreg_strategy) {
-
-	case RPCRDMA_ALLPHYSICAL:
-		rpcrdma_map_one(ia, seg, writing);
-		seg->mr_rkey = ia->ri_bind_mem->rkey;
-		seg->mr_base = seg->mr_dma;
-		seg->mr_nsegs = 1;
-		nsegs = 1;
-		break;
-
-	/* Registration using frmr registration */
-	case RPCRDMA_FRMR:
-		rc = rpcrdma_register_frmr_external(seg, &nsegs, writing, ia, r_xprt);
-		break;
-
-	/* Registration using fmr memory registration */
-	case RPCRDMA_MTHCAFMR:
-		rc = rpcrdma_register_fmr_external(seg, &nsegs, writing, ia);
-		break;
-
-	default:
-		return -EIO;
-	}
-	if (rc)
-		return rc;
-
-	return nsegs;
-}
-
-int
 rpcrdma_deregister_external(struct rpcrdma_mr_seg *seg,
 		struct rpcrdma_xprt *r_xprt)
 {