1402 Commits

Author SHA1 Message Date
Aleksey Baulin
7a89f8eedc eal: improve likely and unlikely macros
A warning is issued when using an argument to likely() or unlikely()
builtins which is evaluated to a pointer value, as __builtin_expect()
expects a 'long int' type for its first argument. With this fix
a pointer value is converted to an integer with the value of 0 or 1.

Signed-off-by: Aleksey Baulin <aleksey.baulin@gmail.com>
2018-01-20 17:47:34 +01:00
Herbert Guan
cd7fc8a84b eal/arm64: optimize memcpy
This patch provides an option to do rte_memcpy() using 'restrict'
qualifier, which can induce GCC to do optimizations by using more
efficient instructions, providing some performance gain over memcpy()
on some ARM64 platforms/enviroments.

The memory copy performance differs between different ARM64
platforms. And a more recent glibc (e.g. 2.23 or later)
can provide a better memcpy() performance compared to old glibc
versions. It's always suggested to use a more recent glibc if
possible, from which the entire system can get benefit. If for some
reason an old glibc has to be used, this patch is provided for an
alternative.

This implementation can improve memory copy on some ARM64
platforms, when an old glibc (e.g. 2.19, 2.17...) is being used.
It is disabled by default and needs "RTE_ARCH_ARM64_MEMCPY"
defined to activate. It's not always proving better performance
than memcpy() so users need to run DPDK unit test
"memcpy_perf_autotest" and customize parameters in "customization
section" in rte_memcpy_64.h for best performance.

Compiler version will also impact the rte_memcpy() performance.
It's observed on some platforms and with the same code, GCC 7.2.0
compiled binary can provide better performance than GCC 4.8.5. It's
suggested to use GCC 5.4.0 or later.

Signed-off-by: Herbert Guan <herbert.guan@arm.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2018-01-20 17:47:25 +01:00
Jonas Pfefferle
de4a79cf56 vfio: improve noiommu check error handling
Kernels v4.4 and earlier does have vfio, but not
the noiommu mode, so the file does not exist.

Check and report errors on open/read in noiommu check.

Signed-off-by: Jonas Pfefferle <jpf@zurich.ibm.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2018-01-20 16:04:37 +01:00
Pavan Nikhilesh
5afc521eac eal: add test assert macros
Adding common test assertion macros for unit testing.
Replaced common macros in test/test.h with new RTE_TEST_ASSERT_* macros.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-01-19 16:09:56 +01:00
Moti Haimovsky
6817219581 vfio: fix FreeBSD build
This patch fixes the following compilation errors in bsdapp

lib/librte_eal/bsdapp/eal/eal.c:782:5:
error: no previous prototype for function 'rte_vfio_clear_group'
int rte_vfio_clear_group(int vfio_group_fd)
    ^

lib/librte_eal/bsdapp/eal/eal.c:782:30:
error: unused parameter 'vfio_group_fd'
int rte_vfio_clear_group(int vfio_group_fd)
                             ^

Fixes: c564a2a20093 ("vfio: expose clear group function for internal usages")

Signed-off-by: Moti Haimovsky <motih@mellanox.com>
2018-01-17 18:49:38 +01:00
Pavan Nikhilesh
934a5ce960 log: update default log levels
Use global default loglevel to DEBUG(8) and dynamic default loglevel
to INFO(7).

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Reviewed-by: Olivier Matz <olivier.matz@6wind.com>
2018-01-17 14:21:34 +01:00
Pavan Nikhilesh
ffb9fd1b08 log: update legacy modules dynamic logs regex
Update legacy log types regex strings used for registering dynamic logs.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: Olivier Matz <olivier.matz@6wind.com>
2018-01-17 14:21:21 +01:00
Pavan Nikhilesh
c3f1685793 vfio: make groups max configurable
Make max vfio groups compile-time configurable so that platforms can
choose vfio group limit.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-17 00:50:17 +01:00
Hemant Agrawal
c564a2a200 vfio: expose clear group function for internal usages
other vfio based module e.g. fslmc will also need to use
the clear_group call.
So, exposing it and renaming it to *rte_vfio_clear_group*

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-17 00:43:04 +01:00
Xiao Wang
19685d5aa7 igb_uio: allow multi-process access
In some case, one device are accessed by different processes via
different BARs, so one uio device may be opened by more than one
process, for this case we just need to enable interrupt once, and
pci_clear_master only when the last process closed.

Fixes: 5f6ff30dc507 ("igb_uio: fix interrupt enablement after FLR in VM")
Cc: stable@dpdk.org

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-01-17 00:36:44 +01:00
Adrien Mazarguil
0d440d081c lib: fix missing includes in exported headers
Many exported headers rely on definitions found in rte_config.h without
including it, as shown by the following command:

 grep -L '^#include <rte_config.h>' -- \
  $(grep -Rl \
    $(sed -n '/^#define \([^ ]\+\).*$/{s//\1/;H;};${x;s/\n//;s/\n/\\|/g;p;}' \
      build/include/rte_config.h) \
    -- build/include/)

We cannot assume external applications will include rte_config.h on their
own, neither directly nor through a -include parameter like DPDK does
internally.

This not only causes obvious compilation failures that can be reproduced
with check-includes.sh such as:

 [...]/rte_memory.h:88:43: error: ‘RTE_CACHE_LINE_SIZE’ was not declared in
     this scope
  #define __rte_cache_aligned __rte_aligned(RTE_CACHE_LINE_SIZE)
                                            ^

It also results in less visible issues, for instance rte_hash_crc.h relying
on RTE_ARCH_X86_64's presence to provide dedicated inline functions.

This patch partially reverts the commit below and adds missing include
lines to the remaining files.

Fixes: f1a7a5c5f404 ("remove include of generated config header")
Cc: stable@dpdk.org

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-01-17 00:31:05 +01:00
Avi Kivity
4f438c8515 eal: remove another use of register keyword
The 'register' keyword does nothing, and has been removed in C++17.

Remove it for compatibility, like following commit:

Fixes: 0d5f2ed12f9e ("eal: remove use of register keyword")

Signed-off-by: Avi Kivity <avi@scylladb.com>
2018-01-15 18:58:49 +01:00
Anatoly Burakov
7b74a6e0b6 vfio: fix enabled check on error
rte_eal_check_module() might return -1, which would have been a
"not false" condition for mod_available. Fix that to only report
vfio being enabled if rte_eal_check_module() returns 1.

Fixes: 221f7c220d6b ("vfio: move global config out of PCI files")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-12 16:02:45 +01:00
Anatoly Burakov
20d2159d46 malloc: fix end for bounded elements
In cases when alignment is bigger than boundary, we may incorrectly
calculate end of a bounded malloc element.

Consider this: suppose we are allocating a bounded malloc element
that should be of 128 bytes in size, bounded to 128 bytes and
aligned on a 256-byte boundary. Suppose our malloc element ends
at 0x140 - that is, 256 plus one cacheline.

So, right at the start, we are aligning our new_data_start to
include the required element size, and to be aligned on a specified
boundary - so new_data_start becomes 0. This fails the following
bounds check, because our element cannot go above 128 bytes from
the start, and we are at 320. So, we enter the bounds handling
branch.

While we're in there, we are aligning end_pt to our boundedness
requirement of 128 byte, and end up with 0x100 (since 256 is
128-byte aligned). We recalculate new_data_size and it stays at
0, however our end is at 0x100, which is beyond the 128 byte
boundary, and we report inability to reserve a bounded element
when we could have.

This patch adds an end_pt recalculation after new_data_start
adjustment - we already know that size <= bound, so we can do it
safely - and we then correctly report that we can, in fact, try
using this element for bounded malloc allocation.

Fixes: fafcc11985a2 ("mem: rework memzone to be allocated by malloc")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-12 15:50:13 +01:00
Anatoly Burakov
f13d705a61 malloc: protect stats with lock
When we're gathering statistics, we are traversing the freelist,
which may change under our feet in multithreaded scenario. This
is verified by occasional segfaults when running malloc autotest
on a machine with big amount of cores.

This patch protects malloc heap stats call with a lock. It changes
its definition in the process due to locking invalidating the
const-ness, but this isn't a public API, so that's OK.

Fixes: 2a5c356e177d ("memory: stats for malloc")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-12 15:46:19 +01:00
Anatoly Burakov
db22d31a79 memzone: fix leak on allocation error
We check if there's space in config after we allocated the memzone,
but if there isn't, we never free it back. This patch adds memzone
free if there's no room in memzone config.

Fixes: ff909fe21f0a ("mem: introduce memzone freeing")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-12 15:38:29 +01:00
Harry van Haaren
fb033aceaf service: add attribute for number of invocations
This commit adds a new attribute to the service cores attributes
API, which allows the application to retrieve the number of times
that a service-core called the service to perform its action.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-01-12 12:49:40 +01:00
Harry van Haaren
1fa2c9e108 service: add reset all attributes for service
This commit introduces a new API, allowing the application to
reset attributes of a service like the cycle count. Given this
functionality is now exposed to the user, remove the resetting
of stats during a dump() call.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-01-12 12:49:40 +01:00
Harry van Haaren
4d55194d76 service: add attribute get function
This commit adds a new function to the service API to allow
the application to retrieve items about each individual service
in the system. A unit test checks the return values of a variety
of invalid and valid calls.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-01-12 12:49:39 +01:00
Thomas Monjalon
8f40ee0734 eal/x86: get hypervisor name
The CPUID instruction is caught by hypervisor which can return
a flag indicating one is running, and its name.

Suggested-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2018-01-12 00:39:14 +01:00
Avi Kivity
0d5f2ed12f eal: remove use of register keyword
The 'register' keyword does nothing, and has been removed in C++17.

Remove it for compatibility.

Signed-off-by: Avi Kivity <avi@scylladb.com>
2018-01-12 00:37:07 +01:00
Jonas Pfefferle
7eafccfa9d mem: warn if address hint is not respected
Print a warning if the --base-virtaddr hint is not respected
since this might lead to problems when mapping memory in
the secondary process.

Signed-off-by: Jonas Pfefferle <jpf@zurich.ibm.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-01-12 00:37:07 +01:00
Harry van Haaren
72e6d1b94b service: fix service core launch
This patch fixes a potential bug, which was not consistently
showing up in the unit tests. The issue was that the service-
lcore being started was not in a "WAIT" state, and hence EAL
would return -EBUSY instead of launching the lcore.

In order to ensure a core is in a launch-ready state, the application
must call rte_eal_wait_lcore, to ensure that the core has completed
its previous task, and that EAL is ready to re-launch it.

The call to rte_eal_wait_lcore() is explicitly not in the
service core function, to make it visible to the application.
Requiring an explicit function call ensures the developer sees
that a lcore could block in the rte_eal_wait_lcore() function
if the core hasn't returned from its previous function.

From a usability perspective, hiding the wait_lcore() inside
service cores would cause confusion.

This patch adds rte_eal_wait_lcore() calls to the unit tests,
to ensure that the lcores for testing functionality are ready
to run the test.

Fixes: 21698354c832 ("service: introduce service cores concept")
Cc: stable@dpdk.org

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
2018-01-11 23:30:30 +01:00
Harry van Haaren
54e7456a3b service: fix lcore role after delete
This patch fixes the reset of the service core,
that when rte_service_lcore_del() is called, the
lcore_role is restored to RTE.

This issue was reported as when running the unit tests, an
error was thrown that "failed to allocate lcore". Investigating
revealed that the state of the service-cores after del() was
not allowing a core to be re-used at a later point in time.

Fixes: 21698354c832 ("service: introduce service cores concept")
Cc: stable@dpdk.org

Reported-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
2018-01-11 23:28:56 +01:00
Pavan Nikhilesh
088a05f057 service: fix number mapped cores count
When adding service the number of mapped cores should only be incremented
when the core is not already a service core or vice versa.

Fixes: 21698354c832 ("service: introduce service cores concept")
Cc: stable@dpdk.org

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-01-11 23:23:10 +01:00
Ferruh Yigit
eb22ffd3e0 igb_uio: convert license header to SPDX tag
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-01-11 19:15:26 +01:00
Ferruh Yigit
3da37a80c1 kni: convert license headers to SPDX tags
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-01-11 19:15:26 +01:00
Thierry Herbelot
8f87ba7015 fix typos
Repeated occurrences of 'the'.

The change was obtained using the following command:

  sed -i "s;the the ;the ;" `git grep -l "the "`

Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
2018-01-11 18:26:46 +01:00
Michael McConville
b45056be04 mem: fix mmap error check on huge page attach
mmap(2) returns MAP_FAILED, not NULL, on failure.

Signed-off-by: Michael McConville <mmcco@mykolab.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-01-09 16:59:50 +01:00
Kefu Chai
4a386cfead contigmem: fix build on FreeBSD 12
include <sys/vmmeter.h> to fix build
otherwise the build fails with FreeBSD 12, like

In file included from contigmem.c:57:
/usr/srcs/head/src/sys/vm/vm_phys.h:122:10: error:
use of undeclared identifier 'vm_cnt'
        return (vm_cnt.v_free_count += adj);
                ^

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2018-01-09 16:52:16 +01:00
Jerin Jacob
baf3d63c15 lib: use SPDX tag for Cavium copyright files
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-01-09 16:19:01 +01:00
Stephen Hemminger
4d4cc68f0d kni: remove redundant parenthesis
Don't need parens on simple if expression

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-01-05 22:08:07 +01:00
Bruce Richardson
369991d997 lib: use SPDX tag for Intel copyright files
Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2018-01-04 22:41:39 +01:00
Ilya V. Matveychikov
65f88eb284 eal: update assertion macro
Update RTE_VERIFY macro to make it possible to use complex expressions
in RTE_ASSERT.

Now it’s possible to have % char inside the expression, for example:
RTE_ASSERT((sizeof(some_struct) % 64) == 0)

Before the patch, “%" sign acts like a conversion specification
beginning character.

Fixes: 148f963fb532 ("xen: core library changes")

Signed-off-by: Ilya V. Matveychikov <matvejchikov@gmail.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-12-22 00:25:13 +00:00
Ferruh Yigit
d291fb3a8d kni: fix build with kernel 4.15
build error:
.../dpdk/build/build/lib/librte_eal/linuxapp/kni/igb_main.c:2809:2:
 error: implicit declaration of function ‘setup_timer’;
 did you mean ‘sk_stop_timer’? [-Werror=implicit-function-declaration]
  setup_timer(&adapter->watchdog_timer, &igb_watchdog,
  ^~~~~~~~~~~
  sk_stop_timer
cc1: all warnings being treated as errors

error observed whed CONFIG_RTE_KNI_KMOD_ETHTOOL config option enabled.

Because Linux removed setup_timer macros for kernel version >= 4.15
Linux: 513ae785c63c ("timer: Remove setup_*timer() interface")

Replaced setup_timer with timer_setup for new kernel versions.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-12-15 15:05:42 +01:00
Thomas Monjalon
224374cc0e version: 18.02-rc0
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2017-11-23 23:33:52 +01:00
Thomas Monjalon
d84aad6504 version: 17.11.0
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2017-11-15 19:00:28 +01:00
Thomas Monjalon
4b08726301 version: 17.11-rc4
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2017-11-13 06:40:50 +01:00
Pavel Shirshov
e32cb57973 lib: fix typos
Signed-off-by: Pavel Shirshov <pavel.shirshov@gmail.com>
2017-11-13 06:26:17 +01:00
Jerin Jacob
536d3f7c26 eal: fix an include guard comment
Fixes: af75078fece3 ("first public release")

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-11-11 15:54:16 +01:00
Thomas Monjalon
c05cb4f939 version: 17.11-rc3
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2017-11-08 02:51:44 +01:00
Ferruh Yigit
369db3ae8e igb_uio: remove device reset in release
More error reported for device reset in release() [1],
when device pass-through to the guest, host kernel crash on guest exit.

Removing the reset completely.

This is close to reverting commit b58eedfc7dd5 [2], taking into account
previous fix to remove reset in open as well [3], but not exactly same.

With latest code, interrupts are enabled in uio open() callback and
disabled in uio release() callback, so when a DPDK application exit
device interrupts are disabled. Previously interrupts were only enabled
once in igb_uio module insert and disabled in module removal.

Also with latest code device set as bus master in open() and master
cleared in release(), clearing bus master should prevent further DMA
which was one of the target of the initial patch.

The initial intention was also to reset the device to be sure it has
been left in proper state, but currently that part is missing because of
reported problem(s).

Still igb_uio should be safer comparing to the pre b58eedfc7dd5 state.

[1]
http://dpdk.org/ml/archives/dev/2017-November/081459.html

[2]
b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device file")

[3]
f73b38e9245d ("igb_uio: remove device reset in open")

Fixes: e3a64deae2d5 ("igb_uio: prevent reset for bnx2x devices")
Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device file")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-11-08 00:51:21 +01:00
Jianfeng Tan
d4a586d29e bus/vdev: move code from EAL into a new driver
Move the vdev bus from lib/librte_eal to drivers/bus.

As the crypto vdev helper function refers to data structure
in rte_vdev.h, so we move those helper function into drivers/bus
too.

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
2017-11-07 16:54:07 +01:00
Jianfeng Tan
394d5b4c0a eal: remove dependency on vdev in attach
We can call bus->plug() to avoid calling rte_vdev_init() explicitly.

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
2017-11-07 16:28:56 +01:00
Thomas Monjalon
d76de38676 lib: fix some typos
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Signed-off-by: Rami Rosen <rami.rosen@intel.com>
2017-11-07 01:46:22 +01:00
Harry van Haaren
8d39d3e237 service: fix race in service on app lcore function
This commit fixes a possible race condition if an application
uses the service-cores infrastructure and the function to run
a service on an application lcore at the same time.

The fix is to change the num_mapped_cores variable to be an
atomic variable. This causes concurrent accesses by multiple
threads to a service using rte_service_run_iter_on_app_lcore()
to detect if another core is currently mapped to the service,
and refuses to run if it is not multi-thread safe.

The run iteration on app lcore function has two arguments, the
service id to run, and if atomics should be used to serialize access
to multi-thread unsafe services. This allows applications to choose
if they wish to use use the service-cores feature, or if they
take responsibility themselves for serializing invoking a service.
See doxygen documentation for more details.

Two unit tests were added to verify the behaviour of the
function to run a service on an application core, testing both
a multi-thread safe service, and a multi-thread unsafe service.

The doxygen API documentation for the function has been updated
to reflect the current and correct behaviour.

Fixes: e9139a32f6e8 ("service: add function to run on app lcore")

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2017-11-07 01:42:04 +01:00
Bruce Richardson
dd74b786f2 eal: fix check for default plugin directory
The check for the existence of the default plugin directory calls stat
using an incorrect variable, which will cause a NULL pointer dereference
error.

Coverity issue: 198440
Fixes: d6a4399cdfc9 ("eal: avoid error for non-existent default PMD path")

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Aaron Conole <aconole@redhat.com>
2017-11-07 01:42:04 +01:00
Jingjing Wu
29906b9743 eal/linux: add interrupt counter size for vdev
For virtual device, the rte_intr_handle struct is
initialized by the virtual device driver, including
the event fd assignment. If the event fd need to be
read for clean, an argument is required for the proper
event fd read.

This patch adds efd_counter_size in rte_intr_handle
struct to tell the rx interrupt process the read size.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
2017-11-07 01:42:04 +01:00
Xiaoyun Li
d35cc1fe6a eal/x86: revert select optimized memcpy at run-time
Revert the patchset run-time Linking support including the following
3 commits:

Fixes: 84cc318424d4 ("eal/x86: select optimized memcpy at run-time")
Fixes: c7fbc80fe60f ("test: select memcpy alignment unit at run-time")
Fixes: 5f180ae32962 ("efd: move AVX2 lookup in its own compilation unit")

The patchset would cause perf drop in vhost/virtio loopback performance
test. Because the run-time dispatch must cost at least a function call
comparing to the compile-time dispatch. And the reference cpu cycles value
is small. And in the test, when using 128-256 bytes packet, it would cause
16%-20% perf drop with mergeble path. When using 256 bytes packet, it would
cause 13% perf drop with vector path.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
2017-11-07 01:16:03 +01:00
Ferruh Yigit
e3a64deae2 igb_uio: prevent reset for bnx2x devices
Some devices are having problem on device reset that happens during DPDK
application exit [1].

Create a static list of devices and exclude them from device reset.

[1]
http://dpdk.org/ml/archives/dev/2017-November/080927.html

Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device file")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-11-07 00:58:11 +01:00