From: Tyler Retzlaff <roretzla@linux.microsoft.com>
Date: Thu, 14 Apr 2022 12:43:43 +0000 (-0700)
Subject: eal/windows: set main lcore affinity
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8001c0ddfe789cd6e0fe6260b2e07a21ec364ea4;p=dpdk.git

eal/windows: set main lcore affinity

Add missing code to affinitize main_lcore from lcore configuration.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
---

diff --git a/lib/eal/windows/eal.c b/lib/eal/windows/eal.c
index 1874f9f6d7..122de2a319 100644
--- a/lib/eal/windows/eal.c
+++ b/lib/eal/windows/eal.c
@@ -279,6 +279,7 @@ rte_eal_init(int argc, char **argv)
 	bool has_phys_addr;
 	enum rte_iova_mode iova_mode;
 	int ret;
+	char cpuset[RTE_CPU_AFFINITY_STR_LEN];
 
 	eal_log_init(NULL, 0);
 
@@ -401,9 +402,20 @@ rte_eal_init(int argc, char **argv)
 		return -1;
 	}
 
+	if (pthread_setaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
+			&lcore_config[config->main_lcore].cpuset) != 0) {
+		rte_eal_init_alert("Cannot set affinity");
+		rte_errno = EINVAL;
+		return -1;
+	}
 	__rte_thread_init(config->main_lcore,
 		&lcore_config[config->main_lcore].cpuset);
 
+	ret = eal_thread_dump_current_affinity(cpuset, sizeof(cpuset));
+	RTE_LOG(DEBUG, EAL, "Main lcore %u is ready (tid=%zx;cpuset=[%s%s])\n",
+		config->main_lcore, (uintptr_t)pthread_self(), cpuset,
+		ret == 0 ? "" : "...");
+
 	RTE_LCORE_FOREACH_WORKER(i) {
 
 		/*