gmane.linux.kernel

Tom Tucker | 6 Oct 17:55

[PATCH 00/03] RDMA Transport Support for 9P


Eric:

This patch series implements an RDMA Transport provider for 9P and 
is relative to your for-next branch.  The RDMA support is built on the 
OpenFabrics API and uses SEND and RECV to exchange data. This patch 
series has been tested with dbench and iozone.

Signed-off-by: Tom Tucker <tom <at> opengridcomputing.com>
Signed-off-by: Latchesar Ionkov <lionkov <at> lanl.gov>

[PATCH 01/03] 9prdma: RDMA Transport Support for 9P

 net/9p/trans_rdma.c |  996 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 996 insertions(+), 0 deletions(-)

[PATCH 02/03] 9prdma: Makefile change for the RDMA transport

 net/9p/Makefile |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

[PATCH 03/03] 9prdma: Kconfig changes for the RDMA transport

 net/9p/Kconfig |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

headers

Tom Tucker | 6 Oct 17:56

[PATCH 01/03] 9prdma: RDMA Transport Support for 9P

This file implements the RDMA transport provider for 9P. It allows
mounts to be performed over iWARP and IB capable network interfaces
and uses the OpenFabrics API to perform I/O.

Signed-off-by: Tom Tucker <tom <at> opengridcomputing.com>
Signed-off-by: Latchesar Ionkov <lionkov <at> lanl.gov>

---
 net/9p/trans_rdma.c | 1025 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 1025 insertions(+), 0 deletions(-)

diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
new file mode 100644
index 0000000..f919768
--- /dev/null
+++ b/net/9p/trans_rdma.c
@@ -0,0 +1,1025 @@
+/*
+ * linux/fs/9p/trans_rdma.c
+ *
+ * RDMA transport layer based on the trans_fd.c implementation.
+ *
+ *  Copyright (C) 2008 by Tom Tucker <tom <at> opengridcomputing.com>
+ *  Copyright (C) 2006 by Russ Cox <rsc <at> swtch.com>
+ *  Copyright (C) 2004-2005 by Latchesar Ionkov <lucho <at> ionkov.net>
+ *  Copyright (C) 2004-2008 by Eric Van Hensbergen <ericvh <at> gmail.com>
+ *  Copyright (C) 1997-2002 by Ron Minnich <rminnich <at> sarnoff.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2

(Continue reading)

headers

Tom Tucker | 6 Oct 17:56

[PATCH 02/03] 9prdma: Makefile change for the RDMA transport

This adds a make rule for the 9pnet_rdma module that implements
the RDMA transport.

Signed-off-by: Tom Tucker <tom <at> opengridcomputing.com>
Signed-off-by: Latchesar Ionkov <lionkov <at> lanl.gov>

---
 net/9p/Makefile |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/net/9p/Makefile b/net/9p/Makefile
index 5192194..bc909ab 100644
--- a/net/9p/Makefile
+++ b/net/9p/Makefile
@@ -1,5 +1,6 @@
 obj-$(CONFIG_NET_9P) := 9pnet.o
 obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
+obj-$(CONFIG_NET_9P_RDMA) += 9pnet_rdma.o

 9pnet-objs := \
 	mod.o \
@@ -12,3 +13,6 @@ obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o

 9pnet_virtio-objs := \
 	trans_virtio.o \
+
+9pnet_rdma-objs := \
+	trans_rdma.o \

headers

Tom Tucker | 6 Oct 17:56

[PATCH 03/03] 9prdma: Kconfig changes for the RDMA transport

This patch adds a config option for the 9P RDMA transport.

Signed-off-by: Tom Tucker <tom <at> opengridcomputing.com>
Signed-off-by: Latchesar Ionkov <lionkov <at> lanl.gov>

---
 net/9p/Kconfig |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index ff34c5a..c42c0c4 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -20,6 +20,12 @@ config NET_9P_VIRTIO
 	  This builds support for a transports between
 	  guest partitions and a host partition.

+config NET_9P_RDMA
+	depends on NET_9P && INFINIBAND && EXPERIMENTAL
+	tristate "9P RDMA Transport (Experimental)"
+	help
+	  This builds support for a RDMA transport.
+
 config NET_9P_DEBUG
 	bool "Debug information"
 	depends on NET_9P