Commit Graph

297 Commits

Author SHA1 Message Date
Hemant Agrawal
f60a9f98ec config: enable virtual IOVA by default for DPAA2
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-07-14 15:58:57 +02:00
Shreyansh Jain
fcee050aa1 update NXP copyright headers
NXP Copyright has been wrongly worded with '(c)' at various places.
This patch removes these extra characters. It also removes
"All rights reserved".

Only NXP copyright syntax is changed. Freescale copyright is not
modified.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2017-07-10 12:26:40 +02:00
Jiayu Hu
e996506a1c lib/gro: add Generic Receive Offload API framework
Generic Receive Offload (GRO) is a widely used SW-based offloading
technique to reduce per-packet processing overhead. It gains
performance by reassembling small packets into large ones. This
patchset is to support GRO in DPDK. To support GRO, this patch
implements a GRO API framework.

To enable more flexibility to applications, DPDK GRO is implemented as
a user library. Applications explicitly use the GRO library to merge
small packets into large ones. DPDK GRO provides two reassembly modes.
One is called lightweight mode, the other is called heavyweight mode.
If applications want to merge packets in a simple way and the number
of packets is relatively small, they can use the lightweight mode.
If applications need more fine-grained controls, they can choose the
heavyweight mode.

rte_gro_reassemble_burst is the main reassembly API which is used in
lightweight mode and processes N packets at a time. For applications,
performing GRO in lightweight mode is simple. They just need to invoke
rte_gro_reassemble_burst. Applications can get GROed packets as soon as
rte_gro_reassemble_burst returns.

rte_gro_reassemble is the main reassembly API which is used in
heavyweight mode and tries to merge N inputted packets with the packets
in GRO reassembly tables. For applications, performing GRO in heavyweight
mode is relatively complicated. Before performing GRO, applications need
to create a GRO context object, which keeps reassembly tables of
desired GRO types, by rte_gro_ctx_create. Then applications can use
rte_gro_reassemble to merge packets. The GROed packets are in the
reassembly tables of the GRO context object. If applications want to get
them, applications need to manually flush them by flush API.

Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>
Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
2017-07-09 18:14:46 +02:00
Jerin Jacob
3abcd29f2d update Cavium Inc copyright headers
Replace the incorrect reference to "Cavium Networks", "Cavium Ltd"
company name with correct the "Cavium, Inc" company name in
copyright headers.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-07-08 17:43:49 +02:00
Jerin Jacob
6d1729de71 app/testeventdev: introduce dpdk-test-eventdev app
The dpdk-test-eventdev tool is a Data Plane Development Kit (DPDK)
application that allows exercising various eventdev use cases. This
application has a generic framework to add new eventdev based test cases
to verify functionality and measure the performance parameters of DPDK
eventdev devices.

This patch adds the skeleton of the dpdk-test-eventdev application.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2017-07-07 09:30:46 +02:00
Nipun Gupta
8cbe85b632 event/dpaa2: add basic build infrastructure
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-07-07 09:24:40 +02:00
Ashwin Sekhar T K
0b835b41b3 config: support clang for ARMv8 Linux
Moved all common defines from defconfig_arm64-armv8a-linuxapp-gcc
to common_armv8a_linuxapp.

Created new config arm64-armv8a-linuxapp-clang which adds the
clang support to armv8a.

Now defconfigs arm64-armv8a-linuxapp-gcc/clang contain only the
CONFIG_RTE_TOOLCHAIN* defines and all other common defines are
inherited from common_armv8a_linuxapp.

Signed-off-by: Ashwin Sekhar T K <ashwin.sekhar@caviumnetworks.com>
Reviewed-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-07-03 22:28:19 +02:00
Ashwin Sekhar T K
b79afd0b7e sched: add NEON optimizations
* Removed setting CONFIG_RTE_SCHED_VECTOR=n from armv8a config
  so that the setting from common_base is taken as the default
  setting for armv8a
* Verified the changes with sched_autotest unit test case

Signed-off-by: Ashwin Sekhar T K <ashwin.sekhar@caviumnetworks.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
2017-07-03 15:13:36 +02:00
Ilya Maximets
cabe6ebb4d config: enable vhost NUMA awareness by default
It is safe to enable LIBRTE_VHOST_NUMA by default for all
configurations where libnuma is already a default dependency.

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-06-30 18:07:50 +02:00
Ilya Maximets
1b72605d24 mem: balanced allocation of hugepages
Currently EAL allocates hugepages one by one not paying attention
from which NUMA node allocation was done.

Such behaviour leads to allocation failure if number of available
hugepages for application limited by cgroups or hugetlbfs and
memory requested not only from the first socket.

Example:
	# 90 x 1GB hugepages availavle in a system

	cgcreate -g hugetlb:/test
	# Limit to 32GB of hugepages
	cgset -r hugetlb.1GB.limit_in_bytes=34359738368 test
	# Request 4GB from each of 2 sockets
	cgexec -g hugetlb:test testpmd --socket-mem=4096,4096 ...

	EAL: SIGBUS: Cannot mmap more hugepages of size 1024 MB
	EAL: 32 not 90 hugepages of size 1024 MB allocated
	EAL: Not enough memory available on socket 1!
	     Requested: 4096MB, available: 0MB
	PANIC in rte_eal_init():
	Cannot init memory

	This happens beacause all allocated pages are
	on socket 0.

Fix this issue by setting mempolicy MPOL_PREFERRED for each hugepage
to one of requested nodes using following schema:

	1) Allocate essential hugepages:
		1.1) Allocate as many hugepages from numa N to
		     only fit requested memory for this numa.
		1.2) repeat 1.1 for all numa nodes.
	2) Try to map all remaining free hugepages in a round-robin
	   fashion.
	3) Sort pages and choose the most suitable.

In this case all essential memory will be allocated and all remaining
pages will be fairly distributed between all requested nodes.

New config option RTE_EAL_NUMA_AWARE_HUGEPAGES introduced and
enabled by default for linuxapp except armv7 and dpaa2.
Enabling of this option adds libnuma as a dependency for EAL.

Fixes: 77988fc08d ("mem: fix allocating all free hugepages")

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-06-30 17:54:32 +02:00
Matej Vido
8c21057185 net/szedata2: add more supported firmwares
Add IBUF and OBUF offsets definitions for new firmwares.

Signed-off-by: Matej Vido <vido@cesnet.cz>
2017-06-12 15:21:22 +01:00
Radu Nicolau
e261265e42 ethdev: move bypass functions to ixgbe PMD
Move all bypass functions to ixgbe pmd and remove function
pointers from the eth_dev_ops struct.

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2017-06-12 10:41:27 +01:00
Rahul Lakkireddy
6c2809628c net/cxgbe: improve latency for slow traffic
TX coalescing waits for ETH_COALESCE_PKT_NUM packets to be coalesced
across bursts before transmitting them.  For slow traffic, such as
100 PPS, this approach increases latency since packets are received
one at a time and tx coalescing has to wait for ETH_COALESCE_PKT
number of packets to arrive before transmitting.

To fix this:

- Update rx path to use status page instead and only receive packets
  when either the ingress interrupt timer threshold (5 us) or
  the ingress interrupt packet count threshold (32 packets) fires.
  (i.e. whichever happens first).

- If number of packets coalesced is <= number of packets sent
  by tx burst function, stop coalescing and transmit these packets
  immediately.

Also added compile time option to favor throughput over latency by
default.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
2017-06-12 10:41:27 +01:00
Hemant Agrawal
63acdb33bc mk: change dpaa2 machine flag to cortex-a72
DPAA2 devices now support cortex-a72. They no longer support a57.
Also fp and simd is no more required to be stated explicitly for
standard a72 core.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-06-12 10:41:26 +01:00
John Daley
0f76668039 net/enic: flow API skeleton
Stub callbacks for the generic flow API and a new FLOW debug define.

Signed-off-by: John Daley <johndale@cisco.com>
Reviewed-by: Nelson Escobar <neescoba@cisco.com>
2017-06-12 10:41:26 +01:00
Bruce Richardson
e6672d2f0f net/ixgbe: enable ixgbe vector PMD for i686
The ixgbe vector PMD was disabled for i686 unnecessarily. Enable it.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2017-06-12 10:41:25 +01:00
Herakliusz Lipiec
79c9c675d2 config: fix comment
Fixes: 4fb7e803eb ("ethdev: add Tx preparation")

Signed-off-by: Herakliusz Lipiec <herakliusz.lipiec@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
2017-06-04 13:18:06 +02:00
Wei Dai
4d8b986bfe config: make backtrace optional
When building DPDK with musl, there is need not to disable
backtrace to remove some references to execinfo.h which is
not supported by musl now.
This also applies to some other libc implementation which
doesn't support backtrace() and backtrace_symbols().

musl is an implementation of the userspace portion
of the standard library functionality described in
the ISO C and POSIX standards, plus common extensions.
Got more details about musl from http://www.musl-libc.org .

Signed-off-by: Wei Dai <wei.dai@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2017-05-05 15:13:29 +02:00
Zhihong Wang
1838af3399 config: make AVX and AVX512 configurable
Making AVX and AVX512 configurable is useful for performance and power
testing.

The similar kernel patch at https://patchwork.kernel.org/patch/9618883/.

AVX512 support like in rte_memcpy has been in DPDK since 16.04, but it's
still unproven in rich use cases in hardware. Therefore it's marked as
experimental for now, will enable it after enough field test and possible
optimization.

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Zhiyong Yang <zhiyong.yang@intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2017-04-30 23:17:53 +02:00
Jerin Jacob
852572d5db config: set cache line as 128B for generic arm64
armv8 implementations may have 64B or 128B cache line.
Setting to the maximum available cache line size in generic config to
address minimum DMA alignment across all arm64 implementations.

Increasing the cacheline size has no negative impact to cache invalidation
on systems with a smaller cache line.

The need for the minimum DMA alignment has impact on functional aspects
of the platform so default config should cater the functional aspects.

There is an impact on memory usage with this scheme, but that's not too
important for the single image arm64 distribution use case.

The arm64 linux kernel followed the similar approach for single
arm64 image use case.
http://lxr.free-electrons.com/source/arch/arm64/include/asm/cache.h

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
2017-04-30 23:06:23 +02:00
Akhil Goyal
623326dded crypto/dpaa2_sec: introduce poll mode driver
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
2017-04-20 11:32:45 +02:00
Hemant Agrawal
fce1fa85fd config: add configuration for toggling physical addressing
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
d401ead13f net/dpaa2: support debug log
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
c147eae01c net/dpaa2: introduce NXP DPAA2 driver
add support for fsl-mc bus based dpaa2 pmd driver.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
5dc43d22b5 mempool/dpaa2: add hardware offloaded mempool
DPAA2 Hardware Mempool handlers allow enqueue/dequeue from NXP's
QBMAN hardware block.
CONFIG_RTE_MBUF_DEFAULT_MEMPOOL_OPS is set to 'dpaa2', if the pool
is enabled.

This memory pool currently supports packet mbuf type blocks only.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
7e7df6d0a4 bus/fslmc: introduce fsl-mc bus driver
The fslmc bus driver is a rte_bus driver which scans the fsl-mc bus
for NXP DPAA2 SoCs.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Konstantin Ananyev
b81f5fa27f net/ixgbe: remove option to disable offload flags
Having packets received without any offload flags given in the mbuf is not
very useful, and performance tests with testpmd indicates little
benefit is got with the current code by turning off the flags. This makes
the build-time option pointless, so we can remove it.

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2017-04-19 15:37:37 +02:00
Bruce Richardson
c3f7edcd8c net/i40e: remove option to disable offload flags
Having packets received without any offload flags given in the mbuf is not
very useful, and performance tests with testpmd indicates little to no
benefit is got with the current code by turning off the flags. This makes
the build-time option pointless, so we can remove it.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
2017-04-19 15:37:37 +02:00
Allain Legacy
cb4e16d948 config: enable AVP driver only on x86 64-bit
The AVP devices are only supported on Intel 64-bit architectures so
adjusting the defconfig attributes accordingly.

Fixes: 908072e9d0 ("net/avp: support driver registration")

Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
2017-04-19 15:37:37 +02:00
Ed Czeck
1131cbf0fb net/ark: stub PMD for Atomic Rules Arkville
Enable Arkville on supported configurations
Add overview documentation
Minimum driver support for valid compile
Arkville PMD is not supported on ARM or PowerPC at this time

Signed-off-by: Ed Czeck <ed.czeck@atomicrules.com>
Signed-off-by: John Miller <john.miller@atomicrules.com>
2017-04-19 15:37:37 +02:00
Bruce Richardson
94bef80770 config: enable crypto scheduler PMD by default
The crypto scheduler PMD has no external dependencies to enable that by
default.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Declan Doherty <declan.doherty@intel.com>
2017-04-06 21:37:19 +02:00
Reshma Pattan
5cd3cac9ed latency: added new library for latency stats
Add a library designed to calculate latency statistics and report them
to the application when queried. The library measures minimum, average and
maximum latencies, and jitter in nano seconds. The current implementation
supports global latency stats, i.e. per application stats.

Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Signed-off-by: Remy Horton <remy.horton@intel.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
2017-04-05 18:00:42 +02:00
Remy Horton
2ad7ba9a65 bitrate: add bitrate statistics library
This patch adds a library that calculates peak and average data-rate
statistics. For ethernet devices. These statistics are reported using
the metrics library.

Signed-off-by: Remy Horton <remy.horton@intel.com>
2017-04-05 17:59:43 +02:00
Remy Horton
349950ddb9 metrics: add information metrics library
This patch adds a new information metrics library. This Metrics
library implements a mechanism by which producers can publish
numeric information for later querying by consumers. Metrics
themselves are statistics that are not generated by PMDs, and
hence are not reported via ethdev extended statistics.

Metric information is populated using a push model, where
producers update the values contained within the metric
library by calling an update function on the relevant metrics.
Consumers receive metric information by querying the central
metric data, which is held in shared memory.

Signed-off-by: Remy Horton <remy.horton@intel.com>
2017-04-05 17:58:51 +02:00
Olivier Matz
c143e5a3d9 net/i40e: use dynamic log type for control logs
This is an example of how a dynamic log type can be used in a
PMD.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
2017-04-05 13:48:45 +02:00
Jerin Jacob
8db0b7de88 event/octeontx: add build and log infrastructure
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Acked-by: Gage Eads <gage.eads@intel.com>
2017-04-04 19:19:52 +02:00
Bruce Richardson
aaa4a221da event/sw: add new software-only eventdev driver
This adds the minimal changes to allow a SW eventdev implementation to
be compiled, linked and created at run time. The eventdev does nothing,
but can be created via vdev on commandline, e.g.

  sudo ./x86_64-native-linuxapp-gcc/app/test --vdev=event_sw0
  ...
  PMD: Creating eventdev sw device event_sw0, numa_node=0, sched_quanta=128
  RTE>>

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-04-04 19:19:51 +02:00
Jerin Jacob
bbbb929da5 event/skeleton: add skeleton eventdev driver
The skeleton driver facilitates, bootstrapping the new
eventdev driver and creates a platform to verify
the northbound eventdev common code.

The driver supports both VDEV and PCI based eventdev
devices.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2017-04-04 19:12:00 +02:00
Jerin Jacob
4f0804bbdf eventdev: implement the northbound APIs
This patch implements northbound eventdev API interface using
southbond driver interface

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2017-04-04 19:12:00 +02:00
Allain Legacy
908072e9d0 net/avp: support driver registration
Adds the initial framework for registering the driver against the support
PCI device identifiers.

Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
Signed-off-by: Matt Peters <matt.peters@windriver.com>
Acked-by: Vincent Jardin <vincent.jardin@6wind.com>
2017-04-04 19:02:18 +02:00
Allain Legacy
8c7bb9c991 net/avp: add debug log macros
Adds a header file with log macros for the AVP PMD

Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
Signed-off-by: Matt Peters <matt.peters@windriver.com>
Acked-by: Vincent Jardin <vincent.jardin@6wind.com>
2017-04-04 19:02:18 +02:00
Allain Legacy
9201ec9bd0 net/avp: add base files
This commit introduces the AVP PMD file structure without adding any actual
driver functionality.  Functional blocks will be added in later patches.

Signed-off-by: Allain Legacy <allain.legacy@windriver.com>
Signed-off-by: Matt Peters <matt.peters@windriver.com>
Acked-by: Vincent Jardin <vincent.jardin@6wind.com>
2017-04-04 19:02:07 +02:00
Shijith Thotton
2554832833 net/liquidio: add log
Add debug options to config file. Define macros used for log and make
use of config file options to enable them.

Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Venkat Koppula <venkat.koppula@caviumnetworks.com>
Signed-off-by: Srisivasubramanian S <ssrinivasan@caviumnetworks.com>
Signed-off-by: Mallesham Jatharakonda <mjatharakonda@oneconvergence.com>
2017-04-04 18:59:47 +02:00
Shijith Thotton
de9b91e857 net/liquidio: add skeleton
Add makefile and config file options to compile PMD. Add feature and
version map file. Update maintainers file to claim responsibility.

Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Venkat Koppula <venkat.koppula@caviumnetworks.com>
Signed-off-by: Srisivasubramanian S <ssrinivasan@caviumnetworks.com>
Signed-off-by: Mallesham Jatharakonda <mjatharakonda@oneconvergence.com>
2017-04-04 18:59:47 +02:00
Jerin Jacob
0bc8874b3b config: enable thunderx nicvf
Enable Thunderx nicvf PMD driver in the common
config as it does not have build dependency
with any external library and/or architecture.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-04-04 18:59:42 +02:00
Gowrishankar Muthukrishnan
c3def6a872 net/i40e: implement vector PMD for altivec
This patch enables i40e driver in PowerPC along with its altivec
intrinsic support.

Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
Acked-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
2017-04-04 15:52:50 +02:00
Ferruh Yigit
75e2bc54c0 net/kni: add KNI PMD
Add KNI PMD which wraps librte_kni for ease of use.

KNI PMD can be used as any regular PMD to send / receive packets to the
Linux networking stack.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: Yong Wang <yongwang@vmware.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Yong Wang <yongwang@vmware.com>
2017-04-04 15:52:50 +02:00
Shreyansh Jain
1263b426ff mempool: move stack handler as a driver
Moved from lib/librte_mempool, stack mempool handler is an independent
driver.
Shared builds would now require to link in librte_mempool_stack for
"stack" mempool handler.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2017-04-03 19:45:45 +02:00
Shreyansh Jain
9a8e9b57f5 mempool: move ring handler as a driver
Moved from lib/librte_mempool, ring mempool is now an independent
driver.
Shared builds would now need to add librte_mempool_ring for:
* ring_mp_mc
* ring_sp_sc
* ring_sp_mc
* ring_mp_sc

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2017-04-03 19:45:45 +02:00
Bruce Richardson
82cb88375c ring: remove the yield when waiting for tail update
There was a compile time setting to enable a ring to yield when
it entered a loop in mp or mc rings waiting for the tail pointer update.
Build time settings are not recommended for enabling/disabling features,
and since this was off by default, remove it completely. If needed, a
runtime enabled equivalent can be used.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2017-03-29 22:25:29 +02:00