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* [dpdk-dev] [PATCH] examples/eventdev_pipeline: fix 32-bit coremask logic
@ 2020-06-16 16:56 Harry van Haaren
  2020-06-29 16:39 ` Jerin Jacob
  0 siblings, 1 reply; 2+ messages in thread
From: Harry van Haaren @ 2020-06-16 16:56 UTC (permalink / raw)
  To: dev; +Cc: junx.w.zhou, maox.jiang, Harry van Haaren, stable

This commit fixes a bug in 32-bit environments when a core mask greater
than 32-bits is requested. The fix is to convert the bitmask logic to
64 bits, aligning 64 and 32 bit implementations.

Fixes: adb5d548 ("examples/eventdev_pipeline_sw_pmd: add sample app")
Cc: stable@dpdk.org

Reported-by: Jun Zhou <junx.w.zhou@intel.com>
Suggested-by: Mao Jiang <maox.jiang@intel.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---
 examples/eventdev_pipeline/main.c            | 10 +++++-----
 examples/eventdev_pipeline/pipeline_common.h |  8 ++++----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/examples/eventdev_pipeline/main.c b/examples/eventdev_pipeline/main.c
index 21958269f..4ac582153 100644
--- a/examples/eventdev_pipeline/main.c
+++ b/examples/eventdev_pipeline/main.c
@@ -81,7 +81,7 @@ parse_coremask(const char *coremask)
 		val = xdigit2val(c);
 		for (j = 0; j < BITS_HEX && idx < MAX_NUM_CORE; j++, idx++) {
 			if ((1 << j) & val) {
-				mask |= (1UL << idx);
+				mask |= (1ULL << idx);
 				count++;
 			}
 		}
@@ -232,10 +232,10 @@ parse_app_args(int argc, char **argv)
 		usage();
 
 	for (i = 0; i < MAX_NUM_CORE; i++) {
-		fdata->rx_core[i] = !!(rx_lcore_mask & (1UL << i));
-		fdata->tx_core[i] = !!(tx_lcore_mask & (1UL << i));
-		fdata->sched_core[i] = !!(sched_lcore_mask & (1UL << i));
-		fdata->worker_core[i] = !!(worker_lcore_mask & (1UL << i));
+		fdata->rx_core[i] = !!(rx_lcore_mask & (1ULL << i));
+		fdata->tx_core[i] = !!(tx_lcore_mask & (1ULL << i));
+		fdata->sched_core[i] = !!(sched_lcore_mask & (1ULL << i));
+		fdata->worker_core[i] = !!(worker_lcore_mask & (1ULL << i));
 
 		if (fdata->worker_core[i])
 			cdata.num_workers++;
diff --git a/examples/eventdev_pipeline/pipeline_common.h b/examples/eventdev_pipeline/pipeline_common.h
index c7245f7f0..6a4287602 100644
--- a/examples/eventdev_pipeline/pipeline_common.h
+++ b/examples/eventdev_pipeline/pipeline_common.h
@@ -51,10 +51,10 @@ struct fastpath_data {
 	bool rx_single;
 	bool tx_single;
 	bool sched_single;
-	unsigned int rx_core[MAX_NUM_CORE];
-	unsigned int tx_core[MAX_NUM_CORE];
-	unsigned int sched_core[MAX_NUM_CORE];
-	unsigned int worker_core[MAX_NUM_CORE];
+	uint64_t rx_core[MAX_NUM_CORE];
+	uint64_t tx_core[MAX_NUM_CORE];
+	uint64_t sched_core[MAX_NUM_CORE];
+	uint64_t worker_core[MAX_NUM_CORE];
 	struct setup_data cap;
 } __rte_cache_aligned;
 
-- 
2.17.1


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2020-06-16 16:56 [dpdk-dev] [PATCH] examples/eventdev_pipeline: fix 32-bit coremask logic Harry van Haaren
2020-06-29 16:39 ` Jerin Jacob

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