2008-10-09 19:00:00

by Tom Talpey

[permalink] [raw]
Subject: [UPDATED PATCH 02/14] RPC/RDMA: add data types and new FRMR memory registration enum.

Internal RPC/RDMA structure updates in preparation for FRMR support.

Signed-off-by: Tom Talpey <[email protected]>
Acked-by: Tom Tucker <[email protected]>
---

include/linux/sunrpc/xprtrdma.h | 1 +
net/sunrpc/xprtrdma/xprt_rdma.h | 8 +++++++-
2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h
index 4de56b1..55a5d92 100644
--- a/include/linux/sunrpc/xprtrdma.h
+++ b/include/linux/sunrpc/xprtrdma.h
@@ -78,6 +78,7 @@ enum rpcrdma_memreg {
RPCRDMA_MEMWINDOWS,
RPCRDMA_MEMWINDOWS_ASYNC,
RPCRDMA_MTHCAFMR,
+ RPCRDMA_FRMR,
RPCRDMA_ALLPHYSICAL,
RPCRDMA_LAST
};
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 2427822..05b7898 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -58,6 +58,8 @@ struct rpcrdma_ia {
struct rdma_cm_id *ri_id;
struct ib_pd *ri_pd;
struct ib_mr *ri_bind_mem;
+ u32 ri_dma_lkey;
+ int ri_have_dma_lkey;
struct completion ri_done;
int ri_async_rc;
enum rpcrdma_memreg ri_memreg_strategy;
@@ -156,6 +158,10 @@ struct rpcrdma_mr_seg { /* chunk descriptors */
union {
struct ib_mw *mw;
struct ib_fmr *fmr;
+ struct {
+ struct ib_fast_reg_page_list *fr_pgl;
+ struct ib_mr *fr_mr;
+ } frmr;
} r;
struct list_head mw_list;
} *rl_mw;
@@ -198,7 +204,7 @@ struct rpcrdma_buffer {
atomic_t rb_credits; /* most recent server credits */
unsigned long rb_cwndscale; /* cached framework rpc_cwndscale */
int rb_max_requests;/* client max requests */
- struct list_head rb_mws; /* optional memory windows/fmrs */
+ struct list_head rb_mws; /* optional memory windows/fmrs/frmrs */
int rb_send_index;
struct rpcrdma_req **rb_send_bufs;
int rb_recv_index;