Commit Graph

276 Commits

Author SHA1 Message Date
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
Bruce Richardson
8c82198978 ring: remove debug setting
The debug option only provided statistics to the user, most of
which could be tracked by the application itself. Remove this as a
compile time option, and feature, simplifying the code.

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 22:25:27 +02:00
Bruce Richardson
d9f0d3a1ff ring: remove split cacheline build setting
Users compiling DPDK should not need to know or care about the arrangement
of cachelines in the rte_ring structure.  Therefore just remove the build
option and set the structures to be always split. On platforms with 64B
cachelines, for improved performance use 128B rather than 64B alignment
since it stops the producer and consumer data being on adjacent cachelines.

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 22:21:51 +02:00
Christian Ehrhardt
630f6ec11e mk: provide option to set major ABI version
Downstreams might want to provide different DPDK releases at the same
time to support multiple consumers of DPDK linked against older and newer
sonames.

Also due to the interdependencies that DPDK libraries can have applications
might end up with an executable space in which multiple versions of a
library are mapped by ld.so.

Think of LibA that got an ABI bump and LibB that did not get an ABI bump
but is depending on LibA.

    Application
    \-> LibA.old
    \-> LibB.new -> LibA.new

That is a conflict which can be avoided by setting CONFIG_RTE_MAJOR_ABI.
If set CONFIG_RTE_MAJOR_ABI overwrites any LIBABIVER value.
An example might be ``CONFIG_RTE_MAJOR_ABI=16.11`` which will make all
libraries librte<?>.so.16.11 instead of librte<?>.so.<LIBABIVER>.

We need to cut arbitrary long stings after the .so now and this would work
for any ABI version in LIBABIVER:
  $(Q)ln -s -f $< $(patsubst %.$(LIBABIVER),%,$@)
But using the following instead additionally allows to simplify the Make
File for the CONFIG_RTE_NEXT_ABI case.
  $(Q)ln -s -f $< $(shell echo $@ | sed 's/\.so.*/.so/')

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Jan Blunck <jblunck@infradead.org>
Tested-by: Jan Blunck <jblunck@infradead.org>
2017-03-16 18:20:01 +01:00
Thomas Monjalon
31123211bd remove unmaintained TILE-Gx architecture
The TILE-Gx architecture and its driver mpipe are not maintained.
The code is removed to avoid confusion.

A last update has been done in 17.05 before removal.
It can be built with the updated toolchain:
	http://www.mellanox.com/repository/solutions/tile-scm/
and libgxio:
	http://www.mellanox.com/repository/solutions/tile-scm/libgxio-1.0.tar.xz

Quote from http://dpdk.org/ml/archives/dev/2017-February/057940.html
"
Mellanox agrees to remove TILE-Gx support from DPDK.org, but will continue
to support customers using DPDK.
Customer that needs support should contact Mellanox directly.
"

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2017-03-15 11:40:57 +01:00
Chris Metcalf
dd0eedb1cf tile: fix build
Re-enable CONFIG_RTE_LIBRTE_SCHED, since it is needed to build
correctly.

Fix a few warnings when compiling mpipe_tilegx.c.

Remove an empty rte_cpu_feature_table[] array using a bogus type.

Properly set RTE_OBJCOPY_{TARGET,ARCH} in mk/arch/tile/rte.vars.mk.

Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
2017-02-27 16:44:32 +01:00
Ferruh Yigit
aa0d7c2d32 kni: remove KNI vhost support
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2017-02-21 11:43:07 +01:00
Andrew Rybchenko
2a5a433ba5 net/sfc: enable TSO by default
Remove RTE_LIBRTE_SFC_EFX_TSO config option since it is not
required any more:
 - unreasonable limit on number of Tx queues when TSO is not
   actually required should be solved using per-device parameter
 - performance difference with and without TSO compiled in is small

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2017-01-30 22:18:26 +01:00
Slawomir Mrozowicz
f8be1786b1 app/crypto-perf: introduce performance test application
This patchset introduce new application which allows measuring
performance parameters of PMDs available in crypto tree. The goal of
this application is to replace existing performance tests in app/test.
Parameters available are: throughput (--ptest throughput) and latency
(--ptest latency). User can use multiply cores to run tests on but only
one type of crypto PMD can be measured during single application
execution. Cipher parameters, type of device, type of operation and
chain mode have to be specified in the command line as application
parameters. These parameters are checked using device capabilities
structure.
Couple of new library functions in librte_cryptodev are introduced for
application use.
To build the application a CONFIG_RTE_APP_CRYPTO_PERF flag has to be set
(it is set by default).
Example of usage: -c 0xc0 --vdev crypto_aesni_mb_pmd -w 0000:00:00.0 --
--ptest throughput --devtype crypto_aesni_mb --optype cipher-then-auth
--cipher-algo aes-cbc --cipher-op encrypt --cipher-key-sz 16 --auth-algo
sha1-hmac --auth-op generate --auth-key-sz 64 --auth-digest-sz 12
--total-ops 10000000 --burst-sz 32 --buffer-sz 64

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Piotr Azarewicz <piotrx.t.azarewicz@intel.com>
Signed-off-by: Marcin Kerlin <marcinx.kerlin@intel.com>
Signed-off-by: Michal Kobylinski <michalx.kobylinski@intel.com>
2017-01-30 17:46:36 +01:00
Fan Zhang
dbb336407f crypto/scheduler: enable compilation
Adds Makefile for scheduler cryptodev PMD, and updates existing
Makefiles. Different than other cryptodev PMDs, scheduler PMD
is required to be built as shared libraries.

Adds scheduler PMD enable and debug flags to config/common_base.

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2017-01-30 17:46:35 +01:00
Ferruh Yigit
ee04d5197b config: disable KNI ethtool by default
KNI ethtool support (KNI control path) is not commonly used,
and it tends to break the build with new version of the Linux kernel.

KNI ethtool feature is disabled by default. KNI datapath is not effected
from this update.

It is possible to enable feature explicitly with config option:
"CONFIG_RTE_KNI_KMOD_ETHTOOL=y"

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2017-01-29 22:37:23 +01:00
Ferruh Yigit
b2b0f85182 kni: add build option for ethtool support
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-01-29 22:36:26 +01:00
Zbigniew Bodek
169ca3db55 crypto/armv8: add PMD optimized for ARMv8 processors
This patch introduces crypto poll mode driver
using ARMv8 cryptographic extensions.
CPU compatibility with this driver is detected in
run-time and virtual crypto device will not be
created if CPU doesn't provide:
AES, SHA1, SHA2 and NEON.

This PMD is optimized to provide performance boost
for chained crypto operations processing,
such as encryption + HMAC generation,
decryption + HMAC validation. In particular,
cipher only or hash only operations are
not provided.

The driver currently supports AES-128-CBC
in combination with: SHA256 HMAC and SHA1 HMAC
and relies on the external armv8_crypto library:
https://github.com/caviumnetworks/armv8_crypto

Build ARMv8 crypto PMD if compiling for ARM64
and CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO option
is enable in the configuration file.
ARMV8_CRYPTO_LIB_PATH environment variable will
point to the appropriate library directory.

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@caviumnetworks.com>
Reviewed-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-01-19 01:00:55 +01:00
Pablo de Lara
56b6ef874f efd: new Elastic Flow Distributor library
Elastic Flow Distributor (EFD) is a distributor library that uses
perfect hashing to determine a target/value for a given incoming flow key.
It has the following advantages:

- First, because it uses perfect hashing, it does not store
  the key itself and hence lookup performance is not dependent
  on the key size.

- Second, the target/value can be any arbitrary value hence
  the system designer and/or operator can better optimize service rates
  and inter-cluster network traffic locating.

- Third, since the storage requirement is much smaller than a hash-based
  flow table (i.e. better fit for CPU cache), EFD can scale to
  millions of flow keys.
  Finally, with current optimized library implementation performance
  is fully scalable with number of CPU cores.

Signed-off-by: Byron Marohn <byron.marohn@intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Signed-off-by: Saikrishna Edupuganti <saikrishna.edupuganti@intel.com>
Acked-by: Christian Maciocco <christian.maciocco@intel.com>
2017-01-18 20:53:28 +01:00
Alejandro Lucero
80987c40fd config: enable nfp driver on Linux
Because using a NFP PMD requires specific BSP installed, the PMD
support was not the default option before. This was just for making
people aware of such dependency, since there is no need for such a
BSP for just compiling DPDK with NFP PMD support.

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
2017-01-18 14:21:37 +01:00
Yongseok Koh
528a9fbec6 net/mlx5: support ConnectX-5 devices
Add PCI device ID for ConnectX-5 and enable multi-packet send for PF and VF
along with changing documentation and release note.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
2017-01-17 19:41:42 +01:00
Rasesh Mody
e651210751 net/qede: add 50G device PCI id
Add 50G device support for 57980 series

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
2017-01-17 19:40:53 +01:00
Ivan Malov
fec33d5bb3 net/sfc: support firmware-assisted TSO
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Mark Spender <mspender@solarflare.com>
Reviewed-by: Robert Stonehouse <rstonehouse@solarflare.com>
2017-01-17 19:40:51 +01:00
Keith Wiles
02f96a0a82 net/tap: add TUN/TAP device PMD
The PMD allows for DPDK and the host to communicate using a raw
device interface on the host and in the DPDK application. The device
created is a Tap device with a L2 packet header.

Signed-off-by: Keith Wiles <keith.wiles@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Aws Ismail <aismail@ciena.com>
Tested-by: Vasily Philipov <vasilyf@mellanox.com>
2017-01-17 19:40:50 +01:00
Andrew Rybchenko
63d588ff26 net/sfc: libefx-based driver stub
Enable the PMD by default on supported configurations.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-01-17 19:39:25 +01:00
Tomasz Kulasek
4fb7e803eb ethdev: add Tx preparation
Added API for `rte_eth_tx_prepare`

uint16_t rte_eth_tx_prepare(uint8_t port_id, uint16_t queue_id,
	struct rte_mbuf **tx_pkts, uint16_t nb_pkts)

Added fields to the `struct rte_eth_desc_lim`:

	uint16_t nb_seg_max;
		/**< Max number of segments per whole packet. */

	uint16_t nb_mtu_seg_max;
		/**< Max number of segments per one MTU */

These fields can be used to create valid packets according to the
following rules:

 * For non-TSO packet, a single transmit packet may span up to
   "nb_mtu_seg_max" buffers.

 * For TSO packet the total number of data descriptors is "nb_seg_max",
   and each segment within the TSO may span up to "nb_mtu_seg_max".

Added functions:

int
rte_validate_tx_offload(struct rte_mbuf *m)

  to validate general requirements for tx offload set in mbuf of packet
  such a flag completness. In current implementation this function is
  called optionaly when RTE_LIBRTE_ETHDEV_DEBUG is enabled.

int rte_net_intel_cksum_prepare(struct rte_mbuf *m)

  to prepare pseudo header checksum for TSO and non-TSO tcp/udp packets
  before hardware tx checksum offload.
   - for non-TSO tcp/udp packets full pseudo-header checksum is
     counted and set.
   - for TSO the IP payload length is not included.

int
rte_net_intel_cksum_flags_prepare(struct rte_mbuf *m, uint64_t ol_flags)

  this function uses same logic as rte_net_intel_cksum_prepare, but
  allows application to choose which offloads should be taken into
  account, if full preparation is not required.

PERFORMANCE TESTS
-----------------

This feature was tested with modified csum engine from test-pmd.

The packet checksum preparation was moved from application to Tx
preparation step placed before burst.

We may expect some overhead costs caused by:
1) using additional callback before burst,
2) rescanning burst,
3) additional condition checking (packet validation),
4) worse optimization (e.g. packet data access, etc.)

We tested it using ixgbe Tx preparation implementation with some parts
disabled to have comparable information about the impact of different
parts of implementation.

IMPACT:

1) For unimplemented Tx preparation callback the performance impact is
   negligible,
2) For packet condition check without checksum modifications (nb_segs,
   available offloads, etc.) is 14626628/14252168 (~2.62% drop),
3) Full support in ixgbe driver (point 2 + packet checksum
   initialization) is 14060924/13588094 (~3.48% drop)

Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2017-01-04 20:40:15 +01:00
Thomas Monjalon
65df6d069d config: remove insecure warnings
There was an option CONFIG_RTE_INSECURE_FUNCTION_WARNING (disabled by
default), which prevents from using some libc functions:
sprintf, snprintf, vsnprintf, strcpy, strncpy, strcat, strncat, sscanf,
strtok, strsep and strlen.

It's all about using them at the right place with the right precautions.
However, it is neither really possible nor a good advice to disable them.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2016-12-07 18:34:02 +01:00