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path: root/net/sunrpc/xprtrdma/rpc_rdma.c
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Diffstat (limited to 'net/sunrpc/xprtrdma/rpc_rdma.c')
-rw-r--r--net/sunrpc/xprtrdma/rpc_rdma.c68
1 files changed, 21 insertions, 47 deletions
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 28020ec104d4..4a81e6995d3e 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -103,21 +103,20 @@ static unsigned int rpcrdma_max_reply_header_size(unsigned int maxsegs)
/**
* rpcrdma_set_max_header_sizes - Initialize inline payload sizes
- * @r_xprt: transport instance to initialize
+ * @ep: endpoint to initialize
*
* The max_inline fields contain the maximum size of an RPC message
* so the marshaling code doesn't have to repeat this calculation
* for every RPC.
*/
-void rpcrdma_set_max_header_sizes(struct rpcrdma_xprt *r_xprt)
+void rpcrdma_set_max_header_sizes(struct rpcrdma_ep *ep)
{
- unsigned int maxsegs = r_xprt->rx_ia.ri_max_rdma_segs;
- struct rpcrdma_ep *ep = &r_xprt->rx_ep;
+ unsigned int maxsegs = ep->re_max_rdma_segs;
- ep->rep_max_inline_send =
- ep->rep_inline_send - rpcrdma_max_call_header_size(maxsegs);
- ep->rep_max_inline_recv =
- ep->rep_inline_recv - rpcrdma_max_reply_header_size(maxsegs);
+ ep->re_max_inline_send =
+ ep->re_inline_send - rpcrdma_max_call_header_size(maxsegs);
+ ep->re_max_inline_recv =
+ ep->re_inline_recv - rpcrdma_max_reply_header_size(maxsegs);
}
/* The client can send a request inline as long as the RPCRDMA header
@@ -132,9 +131,10 @@ static bool rpcrdma_args_inline(struct rpcrdma_xprt *r_xprt,
struct rpc_rqst *rqst)
{
struct xdr_buf *xdr = &rqst->rq_snd_buf;
+ struct rpcrdma_ep *ep = r_xprt->rx_ep;
unsigned int count, remaining, offset;
- if (xdr->len > r_xprt->rx_ep.rep_max_inline_send)
+ if (xdr->len > ep->re_max_inline_send)
return false;
if (xdr->page_len) {
@@ -145,7 +145,7 @@ static bool rpcrdma_args_inline(struct rpcrdma_xprt *r_xprt,
remaining -= min_t(unsigned int,
PAGE_SIZE - offset, remaining);
offset = 0;
- if (++count > r_xprt->rx_ep.rep_attr.cap.max_send_sge)
+ if (++count > ep->re_attr.cap.max_send_sge)
return false;
}
}
@@ -162,7 +162,7 @@ static bool rpcrdma_args_inline(struct rpcrdma_xprt *r_xprt,
static bool rpcrdma_results_inline(struct rpcrdma_xprt *r_xprt,
struct rpc_rqst *rqst)
{
- return rqst->rq_rcv_buf.buflen <= r_xprt->rx_ep.rep_max_inline_recv;
+ return rqst->rq_rcv_buf.buflen <= r_xprt->rx_ep->re_max_inline_recv;
}
/* The client is required to provide a Reply chunk if the maximum
@@ -176,7 +176,7 @@ rpcrdma_nonpayload_inline(const struct rpcrdma_xprt *r_xprt,
const struct xdr_buf *buf = &rqst->rq_rcv_buf;
return (buf->head[0].iov_len + buf->tail[0].iov_len) <
- r_xprt->rx_ep.rep_max_inline_recv;
+ r_xprt->rx_ep->re_max_inline_recv;
}
/* Split @vec on page boundaries into SGEs. FMR registers pages, not
@@ -255,7 +255,7 @@ rpcrdma_convert_iovs(struct rpcrdma_xprt *r_xprt, struct xdr_buf *xdrbuf,
/* When encoding a Read chunk, the tail iovec contains an
* XDR pad and may be omitted.
*/
- if (type == rpcrdma_readch && r_xprt->rx_ia.ri_implicit_roundup)
+ if (type == rpcrdma_readch && r_xprt->rx_ep->re_implicit_roundup)
goto out;
/* When encoding a Write chunk, some servers need to see an
@@ -263,7 +263,7 @@ rpcrdma_convert_iovs(struct rpcrdma_xprt *r_xprt, struct xdr_buf *xdrbuf,
* layer provides space in the tail iovec that may be used
* for this purpose.
*/
- if (type == rpcrdma_writech && r_xprt->rx_ia.ri_implicit_roundup)
+ if (type == rpcrdma_writech && r_xprt->rx_ep->re_implicit_roundup)
goto out;
if (xdrbuf->tail[0].iov_len)
@@ -275,32 +275,6 @@ out:
return n;
}
-static inline int
-encode_item_present(struct xdr_stream *xdr)
-{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, sizeof(*p));
- if (unlikely(!p))
- return -EMSGSIZE;
-
- *p = xdr_one;
- return 0;
-}
-
-static inline int
-encode_item_not_present(struct xdr_stream *xdr)
-{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, sizeof(*p));
- if (unlikely(!p))
- return -EMSGSIZE;
-
- *p = xdr_zero;
- return 0;
-}
-
static void
xdr_encode_rdma_segment(__be32 *iptr, struct rpcrdma_mr *mr)
{
@@ -414,7 +388,7 @@ static int rpcrdma_encode_read_list(struct rpcrdma_xprt *r_xprt,
} while (nsegs);
done:
- return encode_item_not_present(xdr);
+ return xdr_stream_encode_item_absent(xdr);
}
/* Register and XDR encode the Write list. Supports encoding a list
@@ -453,7 +427,7 @@ static int rpcrdma_encode_write_list(struct rpcrdma_xprt *r_xprt,
if (nsegs < 0)
return nsegs;
- if (encode_item_present(xdr) < 0)
+ if (xdr_stream_encode_item_present(xdr) < 0)
return -EMSGSIZE;
segcount = xdr_reserve_space(xdr, sizeof(*segcount));
if (unlikely(!segcount))
@@ -480,7 +454,7 @@ static int rpcrdma_encode_write_list(struct rpcrdma_xprt *r_xprt,
*segcount = cpu_to_be32(nchunks);
done:
- return encode_item_not_present(xdr);
+ return xdr_stream_encode_item_absent(xdr);
}
/* Register and XDR encode the Reply chunk. Supports encoding an array
@@ -507,14 +481,14 @@ static int rpcrdma_encode_reply_chunk(struct rpcrdma_xprt *r_xprt,
__be32 *segcount;
if (wtype != rpcrdma_replych)
- return encode_item_not_present(xdr);
+ return xdr_stream_encode_item_absent(xdr);
seg = req->rl_segments;
nsegs = rpcrdma_convert_iovs(r_xprt, &rqst->rq_rcv_buf, 0, wtype, seg);
if (nsegs < 0)
return nsegs;
- if (encode_item_present(xdr) < 0)
+ if (xdr_stream_encode_item_present(xdr) < 0)
return -EMSGSIZE;
segcount = xdr_reserve_space(xdr, sizeof(*segcount));
if (unlikely(!segcount))
@@ -1476,8 +1450,8 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *rep)
if (credits == 0)
credits = 1; /* don't deadlock */
- else if (credits > r_xprt->rx_ep.rep_max_requests)
- credits = r_xprt->rx_ep.rep_max_requests;
+ else if (credits > r_xprt->rx_ep->re_max_requests)
+ credits = r_xprt->rx_ep->re_max_requests;
if (buf->rb_credits != credits)
rpcrdma_update_cwnd(r_xprt, credits);
rpcrdma_post_recvs(r_xprt, false);