Clean up: ALLPHYSICAL is gone and FMR has been converted to use
scatterlists. There are no more users of these functions.
This patch shrinks the size of struct rpcrdma_req by about 3500
bytes on x86_64. There is one of these structs for each RPC credit
(128 credits per transport connection).
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Tested-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
---
net/sunrpc/xprtrdma/verbs.c | 8 --------
net/sunrpc/xprtrdma/xprt_rdma.h | 36 ------------------------------------
2 files changed, 44 deletions(-)
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 5ee98e9..b80e767f 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1086,14 +1086,6 @@ rpcrdma_recv_buffer_put(struct rpcrdma_rep *rep)
* Wrappers for internal-use kmalloc memory registration, used by buffer code.
*/
-void
-rpcrdma_mapping_error(struct rpcrdma_mr_seg *seg)
-{
- dprintk("RPC: map_one: offset %p iova %llx len %zu\n",
- seg->mr_offset,
- (unsigned long long)seg->mr_dma, seg->mr_dmalen);
-}
-
/**
* rpcrdma_alloc_regbuf - kmalloc and register memory for SEND/RECV buffers
* @ia: controlling rpcrdma_ia
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index bcb168e..f1b6f2f 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -277,9 +277,6 @@ struct rpcrdma_mr_seg { /* chunk descriptors */
u32 mr_rkey; /* registration result */
u32 mr_len; /* length of chunk or segment */
int mr_nsegs; /* number of segments in chunk or 0 */
- enum dma_data_direction mr_dir; /* segment mapping direction */
- dma_addr_t mr_dma; /* segment mapping address */
- size_t mr_dmalen; /* segment mapping length */
struct page *mr_page; /* owning page, if any */
char *mr_offset; /* kva if no page, else offset */
};
@@ -496,45 +493,12 @@ void rpcrdma_destroy_wq(void);
* Wrappers for chunk registration, shared by read/write chunk code.
*/
-void rpcrdma_mapping_error(struct rpcrdma_mr_seg *);
-
static inline enum dma_data_direction
rpcrdma_data_dir(bool writing)
{
return writing ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
}
-static inline void
-rpcrdma_map_one(struct ib_device *device, struct rpcrdma_mr_seg *seg,
- enum dma_data_direction direction)
-{
- seg->mr_dir = direction;
- seg->mr_dmalen = seg->mr_len;
-
- if (seg->mr_page)
- seg->mr_dma = ib_dma_map_page(device,
- seg->mr_page, offset_in_page(seg->mr_offset),
- seg->mr_dmalen, seg->mr_dir);
- else
- seg->mr_dma = ib_dma_map_single(device,
- seg->mr_offset,
- seg->mr_dmalen, seg->mr_dir);
-
- if (ib_dma_mapping_error(device, seg->mr_dma))
- rpcrdma_mapping_error(seg);
-}
-
-static inline void
-rpcrdma_unmap_one(struct ib_device *device, struct rpcrdma_mr_seg *seg)
-{
- if (seg->mr_page)
- ib_dma_unmap_page(device,
- seg->mr_dma, seg->mr_dmalen, seg->mr_dir);
- else
- ib_dma_unmap_single(device,
- seg->mr_dma, seg->mr_dmalen, seg->mr_dir);
-}
-
/*
* RPC/RDMA connection management calls - xprtrdma/rpc_rdma.c
*/
--
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