13 Commits

Author SHA1 Message Date
Chengchang Tang
10aa375704 examples: add eal cleanup to examples
According to the programming guide, the rte_eal_init should be used pairs
with rte_eal_cleanup.

This patch add rte_eal_cleanup to examples to encourage new users of
DPDK to use it.

Fixes: aec9c13c5257 ("eal: add function to release internal resources")
Fixes: 3d0fad56b74a ("examples/fips_validation: add crypto FIPS application")
Fixes: c8e6ceecebc1 ("examples/ioat: add new sample app for ioat driver")
Fixes: 4ff457986f76 ("examples/l2fwd-event: add default poll mode routines")
Fixes: 08bd1a174461 ("examples/l3fwd-graph: add graph-based l3fwd skeleton")
Fixes: c5eebf85badc ("examples/ntb: add example for NTB")
Fixes: b77f66002812 ("examples/pipeline: add new example application")
Fixes: edbed86d1cc3 ("examples/vdpa: introduce a new sample for vDPA")
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Fixes: f5188211c721 ("examples/vhost_crypto: add sample application")
Cc: stable@dpdk.org

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
2021-04-21 20:21:25 +02:00
Chengwen Feng
e5fb1a9698 examples/vhost_blk: set control worker thread name
This patch supports set ctrl worker thread name which is helpful for
debugging.

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
2021-04-21 15:57:51 +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
Joyce Kong
96d1d898dc examples/vhost_blk: replace SMP barrier with thread fence
Simply replace the rte_smp_mb barriers with SEQ_CST atomic thread fence,
if there is no load/store operations.

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2021-01-08 18:07:55 +01:00
David Marchand
9c3586a643 examples/vhost_blk: fix build with pkg-config
vhost_blk.c: In function ‘ctrlr_worker’:
vhost_blk.c:543:2: warning: implicit declaration of function ‘CPU_ZERO’
[-Wimplicit-function-declaration]
  543 |  CPU_ZERO(&cpuset);
      |  ^~~~~~~~
vhost_blk.c:544:2: warning: implicit declaration of function ‘CPU_SET’
[-Wimplicit-function-declaration]
  544 |  CPU_SET(0, &cpuset);
      |  ^~~~~~~
vhost_blk.c:545:2: warning: implicit declaration of function
‘pthread_setaffinity_np’ [-Wimplicit-function-declaration]
  545 |  pthread_setaffinity_np(thread, sizeof(cpu_set_t), &cpuset);
      |  ^~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/cczpiMWH.o: in function `ctrlr_worker':
vhost_blk.c:(.text+0x1076): undefined reference to `CPU_ZERO'
/usr/bin/ld: vhost_blk.c:(.text+0x1082): undefined reference to
`CPU_SET'
collect2: error: ld returned 1 exit status
gmake: *** [Makefile:34: build/vhost-blk-shared] Error 1

Explicitly pass _GNU_SOURCE and include missing headers (rather than
rely on automagic inclusion from other system headers).

Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-11-15 15:33:05 +01:00
Yunjian Wang
dc9e658013 examples/vhost_blk: check driver start failure
This checks the return value from the function
rte_vhost_driver_start.

Coverity issue: 362027
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
2020-09-30 23:16:55 +02:00
Jin Yu
e2b4cfd6a4 examples/vhost_blk: fix not null-terminated buffer
In vhost_blk_bdev_construct: The string buffer may not have
a null terminator if the source string's length is equal to
the buffer size.

Fixes: 91d3e2d42997 ("examples/vhost_blk: refactor to increase readability")

Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>
2020-05-18 20:35:57 +02:00
Jin Yu
91d3e2d429 examples/vhost_blk: refactor to increase readability
Refactor the code and make it easier to read. It's
useful for understanding the inflight APIs and how
packed ring works. Update the RST because the packed
ring patch has been merged to QEMU master and ring_packed
parameter changes to packed.

Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-05-05 15:54:26 +02:00
Timothy Redaelli
be84899229 examples/vhost_blk: fix build with gcc 10
GCC 10 defaults to -fno-common, this means a linker error will now be
reported if the same global variable is defined in more than one
compilation unit.

Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Timothy Redaelli <tredaelli@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-03-04 10:24:42 +01:00
Jin Yu
71dd2870bf examples/vhost_blk: fix check of device path
Fix the time of check time of use warning in example code.
Ignore the errno of unlink failure. There are two situations.
The first one is that file doesn't exist the unlink fails and
it's ok to ignore. The second one is that unlink fails to remove
file but the next bind() would fail too.

Coverity issue: 350589, 158663
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-02-14 12:42:13 +01:00
Jin Yu
1da2925f19 examples/vhost_blk: check unused value on init
Add the assert to handle error.

Coverity issue: 350592
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-01-17 19:46:01 +01:00
Stephen Hemminger
06710448c9 remove blank lines at end of file
Remove trailing blank lines. They serve no purpose and are just
editor leftovers.
These can cause git to complain about whitespace errors during merges.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2019-11-26 00:12:08 +01:00
Jin Yu
c19beb3f38 examples/vhost_blk: introduce vhost storage sample
A Vhost-blk example that support inflight feature. It uses the
new APIs that introduced in the first patch, so it can show how these
APIs work to support inflight feature.

Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2019-11-11 14:23:02 +01:00