diff options
Diffstat (limited to 'net/sunrpc/xprtrdma/xprt_rdma.h')
| -rw-r--r-- | net/sunrpc/xprtrdma/xprt_rdma.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 9569b212be54..d37ee24d2534 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -113,6 +113,7 @@ struct rpcrdma_ep { struct rpcrdma_regbuf { struct ib_sge rg_iov; + struct ib_device *rg_device; enum dma_data_direction rg_direction; __be32 rg_base[0] __attribute__ ((aligned(256))); }; @@ -480,9 +481,24 @@ void rpcrdma_defer_mr_recovery(struct rpcrdma_mw *); struct rpcrdma_regbuf *rpcrdma_alloc_regbuf(struct rpcrdma_ia *, size_t, enum dma_data_direction, gfp_t); +bool __rpcrdma_dma_map_regbuf(struct rpcrdma_ia *, struct rpcrdma_regbuf *); void rpcrdma_free_regbuf(struct rpcrdma_ia *, struct rpcrdma_regbuf *); +static inline bool +rpcrdma_regbuf_is_mapped(struct rpcrdma_regbuf *rb) +{ + return rb->rg_device != NULL; +} + +static inline bool +rpcrdma_dma_map_regbuf(struct rpcrdma_ia *ia, struct rpcrdma_regbuf *rb) +{ + if (likely(rpcrdma_regbuf_is_mapped(rb))) + return true; + return __rpcrdma_dma_map_regbuf(ia, rb); +} + int rpcrdma_ep_post_extra_recv(struct rpcrdma_xprt *, unsigned int); int rpcrdma_alloc_wq(void); |
