Gowrishankar Muthukrishnan 58d55fd279 examples/ip_pipeline: fix lcore mapping for ppc64
This patch fixes ip_pipeline panic in app_init_core_map while preparing cpu
core map in powerpc with SMT off. cpu_core_map_compute_linux currently prepares
core mapping based on file existence in sysfs ie.

/sys/devices/system/cpu/cpu<LCORE_NUM>/topology/physical_package_id
  /sys/devices/system/cpu/cpu<LCORE_NUM>/topology/core_id

These files do not exist for lcores which are offline for any reason (as in
powerpc, while SMT is off). In this situation, this function should further
continue preparing map for other online lcores instead of returning with -1
for a first unavailable lcore.

Also, in SMT=off scenario for powerpc, lcore ids can not be always indexed from
0 upto 'number of cores present' (/sys/devices/system/cpu/present). For eg, for
an online lcore 32, core_id returned in sysfs is 112 where online lcores are
10 (as in one configuration), hence sysfs lcore id can not be checked with
indexing lcore number before positioning lcore map array.

Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
Acked-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
2016-09-09 17:56:25 +02:00
2016-09-09 17:56:14 +02:00
2016-07-22 22:31:02 +02:00
2016-08-24 17:35:52 +02:00
2016-07-28 20:48:41 +02:00
2016-07-22 22:31:02 +02:00
2013-07-25 14:43:06 +02:00
2014-06-11 00:29:34 +02:00
2015-12-13 22:06:58 +01:00

DPDK is a set of libraries and drivers for fast packet processing.
It supports many processor architectures and both FreeBSD and Linux.

The DPDK uses the Open Source BSD license for the core libraries and
drivers. The kernel components are GPLv2 licensed.

Please check the doc directory for release notes,
API documentation, and sample application information.

For questions and usage discussions, subscribe to: users@dpdk.org
Report bugs and issues to the development mailing list: dev@dpdk.org
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