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Daniel Verkamp 2ced60e9bf nvme: return number of completions processed 
nvme_ctrlr_process_io_completions() and
nvme_ctrlr_process_admin_completions() now return the number of
completions processed.

This also adds the possibility of returning an error from the
process_*_completions functions (currently unused, but this at least
gets the API ready in case error conditions are added later).

Change-Id: I1b32ee4f2f3c1c474d646fa2d6b8b7bbb769785f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-01-11 14:44:22 -07:00
doc ioat: add user-mode Intel I/OAT driver 2015-12-09 10:14:15 -07:00
examples nvme/perf: fix memory leaks on error conditions 2016-01-11 09:45:40 -07:00
include/spdk nvme: return number of completions processed 2016-01-11 14:44:22 -07:00
lib nvme: return number of completions processed 2016-01-11 14:44:22 -07:00
mk nvme/utest: add SPDK_CU_ASSERT_FATAL wrapper 2016-01-08 09:31:10 -07:00
scripts autotest: use generic DPDK path on Linux 2016-01-05 13:31:07 -07:00
test nvme: return number of completions processed 2016-01-11 14:44:22 -07:00
.astylerc build: check formatting with astyle 2015-09-23 09:05:51 -07:00
.gitignore build: add CONFIG_COVERAGE code coverage option 2015-11-02 14:40:49 -07:00
.travis.yml build: add Travis CI integration 2015-11-04 11:05:59 -07:00
autobuild.sh autobuild: add sleep to fix dependency test 2015-11-03 15:19:36 -07:00
autopackage.sh CONFIG: allow overriding options in make command 2015-10-22 12:24:57 -07:00
autotest.sh ioat: add user-mode Intel I/OAT driver 2015-12-09 10:14:15 -07:00
CONFIG ioat: add user-mode Intel I/OAT driver 2015-12-09 10:14:15 -07:00
LICENSE SPDK: Initial check-in 2015-09-21 08:52:41 -07:00
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PORTING.md Add porting guide. 2015-09-28 09:07:19 -07:00
README.md README: update to DPDK 2.2.0 2016-01-05 13:18:21 -07:00
unittest.sh ioat: add user-mode Intel I/OAT driver 2015-12-09 10:14:15 -07:00

README.md

Storage Performance Development Kit

Build Status

SPDK on 01.org

The Storage Performance Development Kit (SPDK) provides a set of tools and libraries for writing high performance, scalable, user-mode storage applications. It achieves high performance by moving all of the necessary drivers into userspace and operating in a polled mode instead of relying on interrupts, which avoids kernel context switches and eliminates interrupt handling overhead.

Documentation

Doxygen API documentation

Porting Guide

Prerequisites

To build SPDK, some dependencies must be installed.

Fedora/CentOS:

  • gcc
  • libpciaccess-devel
  • CUnit-devel

Ubuntu/Debian:

  • gcc
  • libpciaccess-dev
  • make
  • libcunit1-dev

FreeBSD:

  • gcc
  • libpciaccess
  • gmake
  • cunit

Additionally, DPDK is required.

1) cd /path/to/spdk
2) wget http://dpdk.org/browse/dpdk/snapshot/dpdk-2.2.0.tar.gz
3) tar xfz dpdk-2.2.0.tar.gz
4) cd dpdk-2.2.0

Linux:

5) make install T=x86_64-native-linuxapp-gcc DESTDIR=.

FreeBSD:

5) gmake install T=x86_64-native-bsdapp-clang DESTDIR=.

Building

Once the prerequisites are installed, run 'make' within the SPDK directory to build the SPDK libraries and examples.

make DPDK_DIR=/path/to/dpdk

If you followed the instructions above for building DPDK:

Linux:

make DPDK_DIR=./dpdk-2.2.0/x86_64-native-linuxapp-gcc

FreeBSD:

gmake DPDK_DIR=./dpdk-2.2.0/x86_64-native-bsdapp-clang

Hugepages and Device Binding

Before running an SPDK application, some hugepages must be allocated and any NVMe and I/OAT devices must be unbound from the native kernel drivers. SPDK includes scripts to automate this process on both Linux and FreeBSD.

1) scripts/configure_hugepages.sh
2) scripts/unbind.sh