Imported Upstream version 16.11

[deb_dpdk.git] / lib / librte_eal / common / eal_common_timer.c

diff --git a/lib/librte_eal/common/eal_common_timer.c b/lib/librte_eal/common/eal_common_timer.c
index c4227cd..7265617 100644 (file)
--- a/lib/librte_eal/common/eal_common_timer.c
+++ b/lib/librte_eal/common/eal_common_timer.c
@@ -47,8 +47,11 @@
 /* The frequency of the RDTSC timer resolution */
 static uint64_t eal_tsc_resolution_hz;
 
+/* Pointer to user delay function */
+void (*rte_delay_us)(unsigned int) = NULL;
+
 void
-rte_delay_us(unsigned us)
+rte_delay_us_block(unsigned int us)
 {
        const uint64_t start = rte_get_timer_cycles();
        const uint64_t ticks = (uint64_t)us * rte_get_timer_hz() / 1E6;
@@ -84,3 +87,15 @@ set_tsc_freq(void)
        RTE_LOG(DEBUG, EAL, "TSC frequency is ~%" PRIu64 " KHz\n", freq / 1000);
        eal_tsc_resolution_hz = freq;
 }
+
+void rte_delay_us_callback_register(void (*userfunc)(unsigned int))
+{
+       rte_delay_us = userfunc;
+}
+
+static void __attribute__((constructor))
+rte_timer_init(void)
+{
+       /* set rte_delay_us_block as a delay function */
+       rte_delay_us_callback_register(rte_delay_us_block);
+}