Commit Graph

1689 Commits

Author SHA1 Message Date
Cristian Dumitrescu
783768136f pipeline: auto-detect endianness of action arguments
Each table entry is made up of match fields and action data, with the
latter made up of the action ID and the action arguments. The approach
of having the user specify explicitly the endianness of the action
arguments is difficult to be picked up by P4 compilers, as the P4
compiler is generally unaware about this aspect.

This commit introduces the auto-detection of the endianness of the
action arguments by examining the endianness of the their destination:
network byte order (NBO) when they get copied to headers and host byte
order (HBO) when they get copied to packet meta-data or mailboxes.

The endianness specification of each action argument as part of the
rule specification, e.g. H(...) and N(...) is removed from the rule
file and auto-detected based on their destination. The DMA instruction
scope is made internal, so mov instructions need to be used. The
pattern of transferring complete headers from table entry action args
to headers is detected, and the associated set of mov instructions
plus header validate is internally detected and replaced with the
internal-only DMA instruction to preserve performance.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-04-20 21:55:43 +02:00
Conor Walsh
6a094e3285 examples/l3fwd: implement FIB lookup method
This patch implements the Forwarding Information Base (FIB) library
in l3fwd using the function calls and infrastructure introduced in
the previous patch.

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
2021-04-20 20:18:29 +02:00
Conor Walsh
9510dd1feb examples/l3fwd: add FIB infrastructure
The purpose of this commit is to add the necessary function calls
and supporting infrastructure to allow the Forwarding Information Base
(FIB) library to be integrated into the l3fwd sample app.
Instead of adding an individual flag for FIB, a new flag '--lookup' has
been added that allows the user to select their desired lookup method.
The flags '-E' and '-L' have been retained for backwards compatibility.

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2021-04-20 20:13:34 +02:00
Conor Walsh
da796d2755 examples/l3fwd: move routes to common header
To prevent code duplication from the addition of lookup methods
the routes specified in lpm should be moved to a common header.

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
2021-04-20 20:05:41 +02:00
Conor Walsh
0c74a91ad6 examples/l3fwd: fix LPM IPv6 subnets
Any IP within the 2001:200::/48 subnet will match all the routes given
instead of 1 individual route and the application cannot
differentiate between them.
The change in this patch allows the ports to be individually matched using
smaller /64 ranges for each port. These smaller subnet ranges are still
within the 2001:200::/48 subnet range set aside for benchmarking
in RFC5180.
l3fwd will now use 2001:200:0:{0-7}::/64 where 0-7 is the port ID for IPv6.

Fixes: 37afe381bd ("examples/l3fwd: use reserved IP addresses")
Cc: stable@dpdk.org

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
2021-04-20 20:05:31 +02:00
Kathleen Capella
a8f8b672d5 examples/l3fwd: skip Tx queue drain on first iteration
Initialize prev_tsc to cur_tsc. This avoids running the TX queue drain
in the first iteration of the packet processing loop.

Signed-off-by: Kathleen Capella <kathleen.capella@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
2021-04-20 03:13:38 +02:00
Min Hu (Connor)
e1d10a42f6 examples/ptpclient: remove wrong comment
This patch deletes the comments which are wrong and unnecessary.

Fixes: ab129e9065 ("examples/ptpclient: add minimal PTP client")
Cc: stable@dpdk.org

Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
2021-04-20 03:03:42 +02:00
Cristian Dumitrescu
1c8b6af9b0 examples/pipeline: add newline to error messages
Add newline to some error messages that were missing it.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-04-20 02:49:17 +02:00
Cristian Dumitrescu
742b0a57f5 pipeline: add table statistics to SWX
Add support for table statistics for the SWX pipeline. For each table,
we maintain a counter for lookup hit packets, one for lookup miss
packets and one packet counter for each table action.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Yogesh Jangra <yogesh.jangra@intel.com>
2021-04-20 02:27:56 +02:00
Cristian Dumitrescu
fe16d678e7 pipeline: add drop instruction to SWX
Enabled the TX instruction to accept an immediate value for the output
port argument. The drop instruction is simply an alias to the TX
instruction for the last output port of the pipeline.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-04-20 02:24:36 +02:00
Shiri Kuzin
3ea6ee38ec examples/l2fwd-crypto: remove key size validation
In the example application the key can be provided by the user or
generated randomly by the example application.

Then a validation is done in order to check if the key size is
supported in the algorithm capabilities.

A new feature flag is added in crypto PMDs to allow wrapped keys,
hence, to allow wrapped keys, app should remove the validation of
key size in the application and rely on a PMD key size validation.

The validation is removed in case the key is provided by user and
the RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY feature flag is set, and
kept in case the key should be generated by the application or
RTE_CRYPTODEV_FF_CIPHER_WRAPPED_KEY is not set.

Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
2021-04-16 12:43:33 +02:00
Tejasree Kondoj
9a1cc8f1ed examples/ipsec-secgw: support UDP encapsulation
Adding lookaside IPsec UDP encapsulation support
for NAT traversal.
Application has to add udp-encap option to sa config file
to enable UDP encapsulation on the SA.

Signed-off-by: Tejasree Kondoj <ktejasree@marvell.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2021-04-16 12:43:33 +02:00
Rohit Raj
62c0b4484c examples/l2fwd-crypto: fix packet length while decryption
There were some padding left when a packet gets decrypted. This
patch removes those padding.
This patch also removes the padding left after verifying auth of
the packet.

Fixes: e2cdfbd07c ("examples/l2fwd-crypto: fix port id type")
Cc: stable@dpdk.org

Signed-off-by: Rohit Raj <rohit.raj@nxp.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
2021-04-16 12:43:33 +02:00
Apeksha Gupta
58266cc91e examples/l2fwd-crypto: skip masked devices
The devices which are masked by cryptodev mask should not be initialized
and skipped while traversing the device list.

Fixes: 6ae3fb9df6 ("examples/l2fwd-crypto: fix session mempool size")
Cc: stable@dpdk.org

Signed-off-by: Apeksha Gupta <apeksha.gupta@nxp.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
2021-04-16 12:43:33 +02:00
Gagandeep Singh
ef156f4eec examples/l2fwd-crypto: align private data size to cache size
L2fwd-crypto is passing 24b private data size while packet
pool creation. This patch aligns that private data size
to cache line size for better performance results.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
2021-04-16 12:43:33 +02:00
Dmitry Kozlyuk
89813a522e net: provide IP-related API on any OS
Users of <rte_ip.h> relied on it to provide IP-related defines,
like IPPROTO_* constants, but still had to include POSIX headers
for inet_pton() and other standard IP-related facilities.

Extend <rte_ip.h> so that it is a single header to gain access
to IP-related facilities on any OS. Use it to replace POSIX includes
in components enabled on Windows. Move missing constants from Windows
networking shim to OS shim header and include it where needed.

Remove Windows networking shim that is no longer needed.

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2021-04-15 01:56:43 +02:00
Xueming Li
64051bb1f1 devargs: unify scratch buffer storage
In current design, legacy parser rte_devargs_parse() saved scratch
buffer to devargs.args while new parser rte_devargs_layers_parse() saved
to devargs.data. Code using devargs had to know the difference and
cleaned up memory accordingly - error prone.

This patch unifies scratch buffer to data field, introduces
rte_devargs_reset() function to wrap the memory clean up logic.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Reviewed-by: Gaetan Rivet <grive@u256.net>
2021-04-14 22:25:08 +02:00
Ibtisam Tariq
dd0946f975 examples/vhost_crypto: remove unused short option
Short option "s" was passed to getopt_long function, while there was
no condition on this option.

Fixes: f5188211c7 ("examples/vhost_crypto: add sample application")
Cc: stable@dpdk.org

Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-03-31 10:02:18 +02:00
Chenbo Xia
1739f81425 examples/vhost: check memory table query
This patch fixes unchecked return value for rte_vhost_get_mem_table(),
which is reported by coverity.

Coverity issue: 364233
Fixes: ca059fa5e2 ("examples/vhost: demonstrate the new generic APIs")
Cc: stable@dpdk.org

Signed-off-by: Chenbo Xia <chenbo.xia@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-03-31 08:46:32 +02:00
Keiichi Watanabe
510f43fc5e examples/vhost_blk: check features before inflight API
Avoid calling rte_vhost_get_vhost_ring_inflight() and
rte_vhost_get_vring_base_from_inflight() when
VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD is not set.

Signed-off-by: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-03-31 08:20:59 +02:00
Cristian Dumitrescu
f38913b7fb pipeline: add meter array to SWX
Meter arrays are stateful objects that are updated by the data plane
and configured & monitored by the control plane. The meters implement
the RFC 2698 Two Rate Three Color Marker (trTCM) algorithm.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-03-24 19:18:45 +01:00
Cristian Dumitrescu
64cfcebd68 pipeline: add register array to SWX
Register arrays are stateful objects that can be read & modified by
both the data plane and the control plane, as opposed to tables, which
are read-only for data plane. One key use-case is the implementation
of stats counters.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-03-24 19:18:40 +01:00
Churchill Khangar
0d644eb621 examples/pipeline: support hexadecimal argument in CLI
This patch allows specification of integer arguments for the
CLI commands in hexadecimal and octal as well as decimal.

Signed-off-by: Churchill Khangar <churchill.khangar@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-03-24 18:27:09 +01:00
Dapeng Yu
c99f115bbd examples/packet_ordering: fix port configuration
A global ethernet port configuration is assigned to local variable
because in this way the local variable may be updated as required. But
this local variable is not used as input of rte_eth_dev_configure() in
original implementation, and cause that fast mbuf free feature cannot
be enabled on port.

This patch use this local variable as input of rte_eth_dev_configure().

Fixes: 6833f919f5 ("examples/packet_ordering: convert to new ethdev offloads API")
Cc: stable@dpdk.org

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
Acked-by: Reshma Pattan <reshma.pattan@intel.com>
2021-03-24 11:16:37 +01:00
Cristian Dumitrescu
0b50ea60fb examples/pipeline: make quanta configurable
Make the pipeline instruction quanta configurable at build time.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-03-24 10:03:12 +01:00
Venkata Suresh Kumar P
e2b8dc5256 port: add file descriptor SWX port
Add the file descriptor input/output port type for the SWX pipeline.
File descriptor port type provides interface with the kernel network
stack. Example file descriptor port is TAP device.

Signed-off-by: Venkata Suresh Kumar P <venkata.suresh.kumar.p@intel.com>
Signed-off-by: Churchill Khangar <churchill.khangar@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-03-23 19:50:44 +01:00
Cristian Dumitrescu
66440b7b22 table: add wildcard match table type
Add the widlcard match/ACL table type for the SWX pipeline, which is
used under the hood by the table instruction.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Churchill Khangar <churchill.khangar@intel.com>
2021-03-23 19:47:20 +01:00
Cristian Dumitrescu
cff9a7178e pipeline: improve table entry parsing
Improve the table entry parsing: better code structure, enable parsing
for the key field masks, allow comments and empty lines in the table
entry files.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Venkata Suresh Kumar P <venkata.suresh.kumar.p@intel.com>
Signed-off-by: Churchill Khangar <churchill.khangar@intel.com>
2021-03-23 18:41:47 +01:00
Cristian Dumitrescu
77a413017c port: add ring SWX port
Add the ring input/output port type for the SWX pipeline.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-03-23 17:22:47 +01:00
Ibtisam Tariq
270054edc9 examples/vhost_crypto: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-03-23 13:00:29 +01:00
Ibtisam Tariq
965b06f035 examples/vhost: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-03-23 13:00:29 +01:00
Ibtisam Tariq
a12daff4d1 examples/qos_sched: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-03-23 13:00:29 +01:00
Ibtisam Tariq
745d01a26a examples/performance-thread: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-03-23 13:00:29 +01:00
Ibtisam Tariq
3bb3ebb51b examples/packet_ordering: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-03-23 13:00:17 +01:00
Ibtisam Tariq
ec4887414a examples/l3fwd-acl: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-03-23 13:00:16 +01:00
Ibtisam Tariq
fc6e6515c7 examples/fips_validation: enhance getopt_long usage
Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum. This is to improve readability and consistency in
all examples.

Bugzilla ID: 238

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq@emumba.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-03-23 12:48:11 +01:00
Thomas Monjalon
960f28b2a3 examples/bbdev: fix header include for musl
The header file unistd.h should not be included from sys/ directory,
it is an error with musl libc.

Fixes: 1ffee690ea ("examples/bbdev: add sample app")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-03-23 08:41:05 +01:00
Thomas Monjalon
1cd512b2f5 build: detect execinfo library on Linux
The library execinfo and its header file can be installed on Alpine Linux
where the backtrace feature is not part of musl libc:
	apk add libexecinfo-dev

As a consequence, this library should not be restricted to BSD only.

At the same time, the library and header are detected once and added
globally to be linked with any application, internal or external.

Fixes: 9065b1fac6 ("build: fix dependency on execinfo for BSD meson builds")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: David Marchand <david.marchand@redhat.com>
2021-03-23 08:41:05 +01:00
Hemant Agrawal
7a04a4f67d examples/ptpclient: enable Rx timestamp offload
This patch add support to enable Rx offload for timestamp.
It is required to be enabled for some PMDs e.g. dpaa2.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>
2021-03-17 13:49:12 +01:00
Bruce Richardson
5d20515e0c build: exclude meson files from examples installation
The meson.build files in each example directory is simply to support
building the example as part of the main SDK build, and these should not
be installed with the example's source code and makefile. The exclude of
"meson.build" only filters out the top-level examples/meson.build file,
not the file in each subdirectory.

To fix this, we can build up the list of files to exclude based off the
list of all examples. With this change "find examples/ -name meson.build"
returns no hits when run on an installed instance.

Fixes: e5b95003f1 ("examples: fix flattening directory layout on install")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-03-15 20:44:29 +01:00
Cheng Jiang
fa545ed3da examples/vhost: add error propagation in ioat ops
This patch adds add error propagation for rte_ioat_completed_ops call,
and also changes dev_id type from int to uint16_t.

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-02-04 18:19:36 +01:00
Cheng Jiang
ee6e451f14 examples/vhost: fix potentially overflowing expression
Change the type of buff_idx from uint64_t to uint32_t to fix coverity
issue.

Coverity issue: 366264
Fixes: a68ba8e0a6 ("examples/vhost: refactor vhost data path")

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-02-04 18:19:36 +01:00
Cheng Jiang
d4d4c6fed6 examples/vhost: remove async inflight packet counter
Remove async inflight packet counter since there is no need to keep
tracking it. Increase MAX_ENQUEUED_SIZE to prevent packet segment number
tracking ring from being exhausted.

Fixes: a68ba8e0a6 ("examples/vhost: refactor vhost data path")

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-02-04 18:19:36 +01:00
Bruce Richardson
5a19633079 examples: warn about broken pkg-config
Since the examples are designed to be built by end-users using Make, we
can detect and warn about broken pkg-config on the user's system as part
of the build process.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2021-01-30 01:27:28 +01:00
Cheng Jiang
a68ba8e0a6 examples/vhost: refactor vhost data path
Change the vm2vm data path to batch enqueue for better performance.
Support latest async vhost API, refactor vhost async data path,
replace rte_atomicNN_xxx to __atomic_XXX and clean some codes.

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-01-29 18:16:09 +01:00
Cheng Jiang
2aa47e94bf examples/vhost: add ioat ring space count and check
Add ioat ring space count and check, if ioat ring space is not enough
for the next async vhost packet enqueue, then just return to prevent
enqueue failure. Add rte_ioat_completed_ops() fail handler.

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Jiayu Hu <jiayu.hu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2021-01-29 18:16:09 +01:00
Feifei Wang
f3527e0b97 examples/eventdev: move ethdev stop to the end
Move eth stop code from "signal_handler" function to the end of "main"
function. There are two reasons for this:

First, this improves code maintenance and makes code look simple and
clear. Based on this change, after receiving the interrupt signal,
"fdata->done" is set as 1. Then the main thread will wait all worker
lcores to jump out of the loop. Finally, the main thread will stop and
then close eth dev port.

Second, for older version, the main thread first stops eth dev port and
then waits the end of worker lcore. This may cause errors because it may
stop the eth dev port which worker lcores are using. This moving change
can fix this by waiting all worker threads to exit and then stop the
eth dev port.

In the meanwhile, remove wmb in signal_handler.

This is because when the main lcore receive the stop signal, it stores 1
into fdata->done. And then the worker lcores load "fdata->done" and jump
out of the loop to stop running. Nothing should be stored after updating
fdata->done, so the wmb is unnecessary.

Fixes: 085edac2ca ("examples/eventdev_pipeline: support Tx adapter")
Cc: stable@dpdk.org

Suggested-by: Ruifeng Wang <ruifeng.wang@arm.com>
Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
2021-01-26 13:58:01 +01:00
Feifei Wang
198b544843 examples/eventdev: add info output for main core
When the main core is set as tx/rx/sched/worker core, it also needs to
print some information to show this. Thus, add info output for the main
core, and add a "dump" function to print core information for the sake
of code simplicity and easy maintenance.

In the meanwhile, fix the count error. For the variable "worker_idx", it
should be incremented when the core is set as worker core. However, when
the main core is set as rx/tx/sched core, the worker_idx is also
incremented. Though this error may not have a substantial impact due to
that the main core is the last launched core, but it should be corrected
from the perspective of code correctness.

Fixes: 1094ca9668 ("doc: add SW eventdev pipeline to sample app guide")
Cc: stable@dpdk.org

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2021-01-26 13:44:06 +01:00
Feifei Wang
3d15913432 examples/eventdev: check CPU core enabling
In the case that the cores are isolated, if "-l" or "-c" parameter is not
added, the cores will not be enabled and can not launch worker function
correctly. In the meanwhile, no error information is reported.

For example:
totally CPUs:16
isolated CPUs:1-8
command: sudo gdb -args ./dpdk-eventdev_pipeline --vdev event_sw0 \
        -- -r1 -t1 -e4 -w F00 -s4 -n0 -c32 -W1000 -D

cores information:
rte_config->lcore_role = {ROLE_RTE, ROLE_OFF, ROLE_OFF, ROLE_OFF,
                          ROLE_OFF, ROLE_OFF, ROLE_OFF, ROLE_OFF,
                          ROLE_OFF, ROLE_RTE, ROLE_RTE, ROLE_RTE,
                          ROLE_RTE, ROLE_RTE, ROLE_RTE, ROLE_RTE}

output information:
...
[main()] lcore 9 executing worker, using eventdev port 0
[main()] lcore 10 executing worker, using eventdev port 1
[main()] lcore 11 executing worker, using eventdev port 2

This is because "RTE_LCORE_FOREACH_WORKER" chooses the enabled core. In
the case that the cores are isolated, "the lcore_role" flag of isolated
cores are set as "ROLE_OFF" by default(not enabled). So if we choose
these isolated cores as workers, "RTE_LCORE_FOREACH_WORKER" will ignore
these cores and not launch worker functions on them.

To fix this, add "-l" parameters to doc and add lcore enabled check.

Fixes: 1094ca9668 ("doc: add SW eventdev pipeline to sample app guide")
Cc: stable@dpdk.org

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2021-01-26 13:30:13 +01:00
Cristian Dumitrescu
821848f519 examples/pipeline: fix CLI parsing crash
Cannot dereference pointer for token[1] unless valid.

Fixes: 5074e1d551 ("examples/pipeline: add configuration commands")
Cc: stable@dpdk.org

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2021-01-29 16:20:58 +01:00