diff options
| author |   Ray <ray.kinsella@intel.com> | 2016-08-09 18:35:13 +0100 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2016-08-09 21:56:52 +0000 |
| commit | 3a9b5d97ca2ea400c4e4ed8231915dbca79c430f (patch) | |
| tree | 6545b3408d4d1e6bf3ac6a1f9785aeafd89ddf6b /dpdk/dpdk-16.07_patches/0006-Allow-applications-to-override-rte_delay_us.patch | |
| parent | 861bd216eba5fe053dbd50dd240c1293ee69a48f (diff) | |
dpdk: allow applications to override rte delay
Some applications may wish to define their own implentation of
usec delay other than the existing blocking one. The default
behavior remains unchanged.
Change-Id: I6cb626e7a5d9d985928aa266e522a849d264a2b2
Signed-off-by: Todd Foggoa (tfoggoa) <tfoggoa@cisco.com>
Signed-off-by: Ray Kinsella <ray.kinsella@intel.com>
Diffstat (limited to 'dpdk/dpdk-16.07_patches/0006-Allow-applications-to-override-rte_delay_us.patch')
| -rw-r--r-- | dpdk/dpdk-16.07_patches/0006-Allow-applications-to-override-rte_delay_us.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/dpdk/dpdk-16.07_patches/0006-Allow-applications-to-override-rte_delay_us.patch b/dpdk/dpdk-16.07_patches/0006-Allow-applications-to-override-rte_delay_us.patch new file mode 100644 index 00000000000..8a32f6009ca --- /dev/null +++ b/dpdk/dpdk-16.07_patches/0006-Allow-applications-to-override-rte_delay_us.patch @@ -0,0 +1,43 @@ +From 3432c140c9c51e671a4d58bb428d5852426add1f Mon Sep 17 00:00:00 2001 +From: "Todd Foggoa (tfoggoa)" <tfoggoa@cisco.com> +Date: Wed, 3 Feb 2016 08:35:27 -0800 +Subject: [PATCH 5/6] Allow applications to override rte_delay_us() + +Some applications may wish to define their own implentation of +usec delay other than the existing blocking one. The default +behavior remains unchanged. + +Signed-off-by: Todd Foggoa (tfoggoa) <tfoggoa@cisco.com> +--- + lib/librte_eal/common/eal_common_timer.c | 12 ++++++++++++ + 1 file changed, 12 insertions(+) + +diff --git a/lib/librte_eal/common/eal_common_timer.c b/lib/librte_eal/common/eal_common_timer.c +index c4227cd..cc26b91 100644 +--- a/lib/librte_eal/common/eal_common_timer.c ++++ b/lib/librte_eal/common/eal_common_timer.c +@@ -47,9 +47,21 @@ + /* The frequency of the RDTSC timer resolution */ + static uint64_t eal_tsc_resolution_hz; + ++/* Allow an override of the rte_delay_us function */ ++int rte_delay_us_override (unsigned us) __attribute__((weak)); ++ ++int ++rte_delay_us_override(__attribute__((unused)) unsigned us) ++{ ++ return 0; ++} ++ + void + rte_delay_us(unsigned us) + { ++ if (rte_delay_us_override(us)) ++ return; ++ + const uint64_t start = rte_get_timer_cycles(); + const uint64_t ticks = (uint64_t)us * rte_get_timer_hz() / 1E6; + while ((rte_get_timer_cycles() - start) < ticks) +-- +2.7.4 + |