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xprtrdma: Remove rl_mr field, and the mr_chunk union

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Clean up: Since commit 0ac531c183 ("xprtrdma: Remove REGISTER
memory registration mode"), the rl_mr pointer is no longer used
anywhere.

After removal, there's only a single member of the mr_chunk union,
so mr_chunk can be removed as well, in favor of a single pointer
field.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2015-01-21 11:02:54 -05:00 committed by Anna Schumaker
parent 5d410ba061
commit 3eb3581066
2 changed files with 13 additions and 17 deletions
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25
net/sunrpc/xprtrdma/verbs.c
View File

@ -1493,8 +1493,8 @@ rpcrdma_buffer_put_mrs(struct rpcrdma_req *req, struct rpcrdma_buffer *buf)
int i;
for (i = 1, seg++; i < RPCRDMA_MAX_SEGS; seg++, i++)
rpcrdma_buffer_put_mr(&seg->mr_chunk.rl_mw, buf);
rpcrdma_buffer_put_mr(&seg1->mr_chunk.rl_mw, buf);
rpcrdma_buffer_put_mr(&seg->rl_mw, buf);
rpcrdma_buffer_put_mr(&seg1->rl_mw, buf);
}
static void
@ -1580,7 +1580,7 @@ rpcrdma_buffer_get_frmrs(struct rpcrdma_req *req, struct rpcrdma_buffer *buf,
list_add(&r->mw_list, stale);
continue;
}
req->rl_segments[i].mr_chunk.rl_mw = r;
req->rl_segments[i].rl_mw = r;
if (unlikely(i-- == 0))
return req; /* Success */
}
@ -1602,7 +1602,7 @@ rpcrdma_buffer_get_fmrs(struct rpcrdma_req *req, struct rpcrdma_buffer *buf)
r = list_entry(buf->rb_mws.next,
struct rpcrdma_mw, mw_list);
list_del(&r->mw_list);
req->rl_segments[i].mr_chunk.rl_mw = r;
req->rl_segments[i].rl_mw = r;
if (unlikely(i-- == 0))
return req; /* Success */
}
@ -1842,7 +1842,7 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
struct rpcrdma_xprt *r_xprt)
{
struct rpcrdma_mr_seg *seg1 = seg;
struct rpcrdma_mw *mw = seg1->mr_chunk.rl_mw;
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;
@ -1931,12 +1931,12 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg,
struct ib_send_wr invalidate_wr, *bad_wr;
int rc;
seg1->mr_chunk.rl_mw->r.frmr.fr_state = FRMR_IS_INVALID;
seg1->rl_mw->r.frmr.fr_state = FRMR_IS_INVALID;
memset(&invalidate_wr, 0, sizeof invalidate_wr);
invalidate_wr.wr_id = (unsigned long)(void *)seg1->mr_chunk.rl_mw;
invalidate_wr.wr_id = (unsigned long)(void *)seg1->rl_mw;
invalidate_wr.opcode = IB_WR_LOCAL_INV;
invalidate_wr.ex.invalidate_rkey = seg1->mr_chunk.rl_mw->r.frmr.fr_mr->rkey;
invalidate_wr.ex.invalidate_rkey = seg1->rl_mw->r.frmr.fr_mr->rkey;
DECR_CQCOUNT(&r_xprt->rx_ep);
read_lock(&ia->ri_qplock);
@ -1946,7 +1946,7 @@ rpcrdma_deregister_frmr_external(struct rpcrdma_mr_seg *seg,
read_unlock(&ia->ri_qplock);
if (rc) {
/* Force rpcrdma_buffer_get() to retry */
seg1->mr_chunk.rl_mw->r.frmr.fr_state = FRMR_IS_STALE;
seg1->rl_mw->r.frmr.fr_state = FRMR_IS_STALE;
dprintk("RPC: %s: failed ib_post_send for invalidate,"
" status %i\n", __func__, rc);
}
@ -1978,8 +1978,7 @@ rpcrdma_register_fmr_external(struct rpcrdma_mr_seg *seg,
offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
break;
}
rc = ib_map_phys_fmr(seg1->mr_chunk.rl_mw->r.fmr,
physaddrs, i, seg1->mr_dma);
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__,
@ -1988,7 +1987,7 @@ rpcrdma_register_fmr_external(struct rpcrdma_mr_seg *seg,
while (i--)
rpcrdma_unmap_one(ia, --seg);
} else {
seg1->mr_rkey = seg1->mr_chunk.rl_mw->r.fmr->rkey;
seg1->mr_rkey = seg1->rl_mw->r.fmr->rkey;
seg1->mr_base = seg1->mr_dma + pageoff;
seg1->mr_nsegs = i;
seg1->mr_len = len;
@ -2005,7 +2004,7 @@ rpcrdma_deregister_fmr_external(struct rpcrdma_mr_seg *seg,
LIST_HEAD(l);
int rc;
list_add(&seg1->mr_chunk.rl_mw->r.fmr->list, &l);
list_add(&seg1->rl_mw->r.fmr->list, &l);
rc = ib_unmap_fmr(&l);
read_lock(&ia->ri_qplock);
while (seg1->mr_nsegs--)

5
net/sunrpc/xprtrdma/xprt_rdma.h
View File

@ -210,10 +210,7 @@ struct rpcrdma_mw {
*/
struct rpcrdma_mr_seg { /* chunk descriptors */
union { /* chunk memory handles */
struct ib_mr *rl_mr; /* if registered directly */
struct rpcrdma_mw *rl_mw; /* if registered from region */
} mr_chunk;
struct rpcrdma_mw *rl_mw; /* registered MR */
u64 mr_base; /* registration result */
u32 mr_rkey; /* registration result */
u32 mr_len; /* length of chunk or segment */