Merge tag 'v4.9-rc1' into x86/urgent, to pick up updates

Signed-off-by: Ingo Molnar <[email protected]>

1 files changed, 39 insertions, 0 deletions

diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h
index 3b1ff38f0c37..cfda6adcf33c 100644
--- a/include/linux/sunrpc/rpc_rdma.h
+++ b/include/linux/sunrpc/rpc_rdma.h
@@ -41,10 +41,15 @@
 #define _LINUX_SUNRPC_RPC_RDMA_H
 
 #include <linux/types.h>
+#include <linux/bitops.h>
 
 #define RPCRDMA_VERSION		1
 #define rpcrdma_version		cpu_to_be32(RPCRDMA_VERSION)
 
+enum {
+	RPCRDMA_V1_DEF_INLINE_SIZE	= 1024,
+};
+
 struct rpcrdma_segment {
 	__be32 rs_handle;	/* Registered memory handle */
 	__be32 rs_length;	/* Length of the chunk in bytes */
@@ -129,4 +134,38 @@ enum rpcrdma_proc {
 #define rdma_done	cpu_to_be32(RDMA_DONE)
 #define rdma_error	cpu_to_be32(RDMA_ERROR)
 
+/*
+ * Private extension to RPC-over-RDMA Version One.
+ * Message passed during RDMA-CM connection set-up.
+ *
+ * Add new fields at the end, and don't permute existing
+ * fields.
+ */
+struct rpcrdma_connect_private {
+	__be32			cp_magic;
+	u8			cp_version;
+	u8			cp_flags;
+	u8			cp_send_size;
+	u8			cp_recv_size;
+} __packed;
+
+#define rpcrdma_cmp_magic	__cpu_to_be32(0xf6ab0e18)
+
+enum {
+	RPCRDMA_CMP_VERSION		= 1,
+	RPCRDMA_CMP_F_SND_W_INV_OK	= BIT(0),
+};
+
+static inline u8
+rpcrdma_encode_buffer_size(unsigned int size)
+{
+	return (size >> 10) - 1;
+}
+
+static inline unsigned int
+rpcrdma_decode_buffer_size(u8 val)
+{
+	return ((unsigned int)val + 1) << 10;
+}
+
 #endif				/* _LINUX_SUNRPC_RPC_RDMA_H */