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* [dpdk-dev] [PATCH v1] doc: update definition of lcore id and lcore index
@ 2018-01-31 16:46 Marko Kovacevic
  2018-02-01 15:04 ` Bruce Richardson
  2018-02-01 16:53 ` [dpdk-dev] [PATCH v2] " Marko Kovacevic
  0 siblings, 2 replies; 6+ messages in thread
From: Marko Kovacevic @ 2018-01-31 16:46 UTC (permalink / raw)
  To: dev; +Cc: john.mcnamara, vipin.varghese, bruce.richardson, Marko Kovacevic

Added examples in lcore index for better
explanation on various examples,
Sited examples for lcore id.

Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com>
---
 lib/librte_eal/common/include/rte_lcore.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/lib/librte_eal/common/include/rte_lcore.h b/lib/librte_eal/common/include/rte_lcore.h
index d84bcff..349ac36 100644
--- a/lib/librte_eal/common/include/rte_lcore.h
+++ b/lib/librte_eal/common/include/rte_lcore.h
@@ -57,7 +57,9 @@ RTE_DECLARE_PER_LCORE(unsigned, _lcore_id);  /**< Per thread "lcore id". */
 RTE_DECLARE_PER_LCORE(rte_cpuset_t, _cpuset); /**< Per thread "cpuset". */
 
 /**
- * Return the ID of the execution unit we are running on.
+ * Return the Application thread ID of the execution unit.
+ * If option '-l' or '-c' is provided the lcore ID is the actual
+ * CPU ID.
  * @return
  *  Logical core ID (in EAL thread) or LCORE_ID_ANY (in non-EAL thread)
  */
@@ -94,8 +96,19 @@ rte_lcore_count(void)
 
 /**
  * Return the index of the lcore starting from zero.
- * The order is physical or given by command line (-l option).
  *
+ * For example: <Core parameters - Mapping description>
+ * 1. '-c 0xf0' - CPU core ID 4 is index 0, 5
+ * is 1 and so on.
+ *
+ * 2. '-l 22-25' - CPU core ID 22 is index 0
+ * 23 is 1 and so on.
+ *
+ * 3. '-l 22,18' - CPU core ID 22 is index 0 and
+ * 18 is 1
+ *
+ * 4. '-c 0xcc' - CPU core ID 2 is index 0, 3 is index 1,
+ * 6 is index 2 and 7 is index 3.
  * @param lcore_id
  *   The targeted lcore, or -1 for the current one.
  * @return
-- 
2.9.5

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2018-02-06 21:11 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-01-31 16:46 [dpdk-dev] [PATCH v1] doc: update definition of lcore id and lcore index Marko Kovacevic
2018-02-01 15:04 ` Bruce Richardson
2018-02-01 16:53 ` [dpdk-dev] [PATCH v2] " Marko Kovacevic
2018-02-02 15:02   ` [dpdk-dev] [PATCH v3] " Marko Kovacevic
2018-02-06 12:28     ` Mcnamara, John
2018-02-06 21:11       ` Thomas Monjalon

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