Commit Graph

11 Commits

Author SHA1 Message Date
Ben Walker
6b1e4e732d Drop libpciaccess and switch to DPDK PCI
This patch also drops support for automatically unbinding
devices from the kernel - run scripts/setup.sh first.

Our generic pci interface is now hidden behind include/spdk/pci.h
and implemented in lib/util/pci.c. We no longer wrap the calls
in nvme_impl.h or ioat_impl.h. The implementation now only uses
DPDK and the libpciaccess dependency has been removed. If using
a version of DPDK earlier than 16.07, enumerating devices
by class code isn't available and only Intel SSDs will be
discovered. DPDK 16.07 adds enumeration by class code and all
NVMe devices will be correctly discovered.

Change-Id: I0e8bac36b5ca57df604a2b310c47342c67dc9f3c
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-04 15:59:00 -07:00
Daniel Verkamp
cf0871a57e ioat: make channel allocation explicit
Add a parameter to each I/OAT library function that requires a channel
instead of implicitly using the thread-local channel registration model.

I/OAT channels are already reported by the spdk_ioat_probe() attach
callback, so no infrastructure for channel allocation is necessary.

Change-Id: I8731126fcaea9fe2bafc41a3f75c969a100ef8f0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-03-15 09:50:17 -07:00
Daniel Verkamp
5cab054f4e ioat: add spdk_ prefixes
Change-Id: Ic42f204a9a4e65661931af2220e8f8ac77242a69
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-11 12:35:57 -07:00
Daniel Verkamp
40c591eac8 string: add spdk_ prefix
sprintf_alloc() -> spdk_sprintf_alloc()

Change-Id: I24970baa37615633572d132abe3e57d0889f1a48
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-08 14:28:56 -07:00
Daniel Verkamp
93933831f7 pci: clean up public pci.h interface
Rename all functions with a spdk_ prefix, and provide enough of an API
to avoid apps needing to #include <pciaccess.h>.

The opaque type used in the public API for a PCI device is now
struct spdk_pci_device *.

Change-Id: I1e7a09bbc5328c624bec8cf5c8a69ab0ea8e8254
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-08 09:58:13 -07:00
Daniel Verkamp
047c5aaaa8 ioat: refactor ioat_attach() API into ioat_probe()
Similar to the NVMe API change, this allows better abstraction of the
PCI subsystem.

Change-Id: I2b84d9c3c498a08d4451b4ff27d0865f0456c210
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-08 09:50:57 -07:00
Daniel Verkamp
b235c942fa examples/ioat: fix initialization error handling
Previously, ioat_init() in the example programs was returning 0 even if
initialization failed.

Change-Id: I96b2ec5646f7051ab881611acff424fb8547d5eb
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-01 15:45:16 -07:00
Daniel Verkamp
c02b179490 Remove year from copyright headers.
Also add a space between Copyright and (c).

The copyright year can be determined using git metadata.

Also remove the duplicated "All rights reserved." - every instance of
this line already has a corresponding "All rights reserved" immediately
below it, except for examples/ioat/kperf/kmod/dma_perf.c, where I have
added it manually.

Performed using this command:

git ls-files | xargs sed -i -e 's/Copyright(c) \(.*\) Intel Corporation. All rights reserved./Copyright (c) Intel Corporation./'

Change-Id: I3779f404966800709024eb1eb66a50068af2716c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-01-28 08:54:18 -07:00
Daniel Verkamp
040742359e pci: rename pci_device_has_non_null_driver to non_uio
This more accurately represents what function it performs.

Also remove pci_device_has_uio_driver() from the public API.  Callers
should use pci_device_has_non_uio_driver() instead.

Change-Id: I9623fe1345b43e981d5823804e33d01ac0d3bb1c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-01-12 08:58:02 -07:00
Daniel Verkamp
25cad6ffcf ioat: clean up on exit in examples
Previously, the cleanup functions were only being called if there was an
error during initialization.

Change-Id: I1606cfa9a9c3732d670131f78249d34a5db47403
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-12-09 10:14:52 -07:00
Daniel Verkamp
d4ab30ba33 ioat: add user-mode Intel I/OAT driver
The ioat driver supports DMA engine copy offload hardware available on
Intel Xeon platforms.

Change-Id: Ida0b17b25816576948ddb1b0443587e0f09574d4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-12-09 10:14:15 -07:00