Commit Graph

12 Commits

Author SHA1 Message Date
yidong0635
9c62e1c132 ioat_spec: fix gcc9 warning
Warning: taking address of packed member of ‘ ’ may result in
an unaligned pointer value [-Waddress-of-packed-member], to compatible
with new compiler,
Add "__attribute__((aligned))" for a registered struct.

Change-Id: I82a499f6534389d39bd64ce31e51aaffee292301
Signed-off-by: yidong0635 <dongx.yi@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/458242
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-06-17 14:09:03 +00:00
Dariusz Stojaczyk
9b172afdb6 ioat: clear the internal channel error register on reset
I/OAT device will refuse to resume from the Halted
state until we clear both CHANERR and CHANERR_INT
registers.

We only cleared CHANERR so far. So after the I/OAT
device encountered an error, SPDK would not be able
to initialize it ever again unless it's rebound to
the ioatdma driver.

Unlike CHANERR, CHANERR_INT is only accessible through
PCI config space.

CHANERR_INT is only available on I/OAT devices with
version < 3.3.

Change-Id: Ib369ca76f58c4868fe61ff9532b2e7947e5091d3
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/422026
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-08-13 16:59:18 +00:00
Daniel Verkamp
45cab335bc include: move standard includes into spdk/stdinc.h
This is the first step toward isolating standard C and POSIX headers
into a single replaceable header file.

Change-Id: I527297f5e7260b01103018ad3429922962ee9add
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-05-08 10:11:01 -07:00
Daniel Verkamp
53ec54c929 ioat_spec.h: rename xor to avoid C++ keyword collision
Change-Id: I4b51b8adf273b12794e0c98dd99e7f29cdf689c1
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-09-21 09:37:43 -07:00
Daniel Verkamp
8eafb6546c doc: add Doxygen file marker to all public headers
For existing \file markers, move them to the top of the header and tweak
the wording for consistency.

Change-Id: Icce748effe4dbe97d79a8c87d31caf0ee5797058
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-05-04 11:17:17 -07:00
Daniel Verkamp
04adec22bc Add extern "C" wrapper to all public headers
Also consistently place the extern "C" before any includes or other
declarations in files that already had it.

Change-Id: Ia316d5be3e509ec76c4a98cfa90ed516073351e0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-12 07:52:35 -07:00
Daniel Verkamp
c7150a5611 ioat_spec: add spdk_ prefixes
Change-Id: I91444f10b98d7e247af5eb2fea719e283a1156a2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-11 10:39:28 -07:00
Changpeng Liu
8aa497f083 spdk: Add block fill API to ioat driver
For those Crystal Beach DMA channels which support block fill capability,
we add a fill API here that can zero out pages or fill them with a
fixed pattern.

Change-Id: I8a57337702b951c703d494004b111f6d206279fb
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
2016-02-02 13:29:07 +08:00
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
16a45d2591 Add static_assert fallback for older compilers
_Static_assert is new in C11, and older versions of GCC don't support
it.  Detect whether static_assert is available in <assert.h> and if not,
define a fallback macro.

Change-Id: Iaf513677e5f356832e0a3d1f6b1f4f9ea07e6627
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-01-08 15:29:03 -07:00
Daniel Verkamp
625fcb9ed3 ioat: add a union of all descriptor types
The ioat library currently only supports DMA copy operations, but the
hardware can do other types of transfers.  Add a union of the hardware
descriptor structures to enable support for the other operations in the
future.

Also add a generic hardware descriptor type to allow access to the parts
of the descriptor that are common between all types.

Change-Id: I3b54421ce771f58b78910e790b53026f311f918e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-12-30 09:28:47 -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