Commit Graph

5 Commits

Author SHA1 Message Date
Thomas Monjalon
d9a42a69fe ethdev: deprecate port count function
Some DPDK applications wrongly assume these requirements:
    - no hotplug, i.e. ports are never detached
    - all allocated ports are available to the application

Such application iterates over ports by its own mean.
The most common pattern is to request the port count and
assume ports with index in the range [0..count[ can be used.

In order to fix this common mistake in all external applications,
the function rte_eth_dev_count is deprecated, while introducing
the new functions rte_eth_dev_count_avail and rte_eth_dev_count_total.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2018-04-18 00:48:41 +02:00
Thomas Monjalon
8728ccf376 fix ethdev ports enumeration
Some DPDK applications wrongly assume these requirements:
    - no hotplug, i.e. ports are never detached
    - all allocated ports are available to the application

Such application iterates over ports by its own mean.
The most common pattern is to request the port count and
assume ports with index in the range [0..count[ can be used.

There are three consequences when using such wrong design:
    - new ports having an index higher than the port count won't be seen
    - old ports being detached (RTE_ETH_DEV_UNUSED) can be seen as ghosts
    - failsafe sub-devices (RTE_ETH_DEV_DEFERRED) will be seen by the application

Such mistake will be less common with growing hotplug awareness.
All applications and examples inside this repository - except testpmd -
must be fixed to use the iterator RTE_ETH_FOREACH_DEV.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2018-04-18 00:25:27 +02:00
Radu Nicolau
f0b9479497 app/procinfo: fix strncpy usage in args parsing
Replace strncpy with snprintf to avoid overwriting the last
NULL character.

Coverity issue: 143252
Fixes: 2deb6b5246 ("app/procinfo: add collectd format and host id")
Cc: stable@dpdk.org

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2018-03-28 00:35:37 +02:00
Bruce Richardson
996ef11761 app: add all remaining apps to meson build
Add remaining subdirectories in the app folder to the meson build.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-03-12 16:29:27 +01:00
Bruce Richardson
1a0accaddb app/procinfo: rename folder to remove underscore
All other apps in the app folder use "-" rather than "_" to separate words
in the app name, so rename proc_info to be consistent.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-03-12 16:29:27 +01:00