[dpdk-dev] [PATCH v4] eal: rename state values in rte_lcore_state

Stephen Hemminger stephen at networkplumber.org
Wed Jun 19 21:22:15 CEST 2019


C language does not really treat enum's as first class symbols.
The values in an enum live in a global namespace.  That means if
DPDK defines "RUNNING" it can't be used by another enum in an
application using DPDK.

To solve this add a prefix "RTE_LCORE_" to the enum values, and
make them grammatically consistent.

Also, simplify the inline thread_is_running() which is copied
in softnic and ip_pipeline.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
v4 - rebase (after lcore changes),fix FreeBSD typo

 drivers/event/octeontx/ssovf_evdev_selftest.c |  2 +-
 drivers/event/sw/sw_evdev_selftest.c          |  4 ++--
 drivers/net/softnic/rte_eth_softnic_thread.c  |  5 +----
 examples/bond/main.c                          |  4 ++--
 examples/ip_pipeline/thread.c                 |  5 +----
 examples/l2fwd-keepalive/main.c               |  2 +-
 lib/librte_eal/common/eal_common_launch.c     | 12 ++++++------
 lib/librte_eal/common/include/rte_launch.h    |  6 +++---
 lib/librte_eal/common/rte_service.c           |  2 +-
 lib/librte_eal/freebsd/eal/eal.c              |  2 +-
 lib/librte_eal/freebsd/eal/eal_thread.c       |  6 +++---
 lib/librte_eal/linux/eal/eal.c                |  2 +-
 lib/librte_eal/linux/eal/eal_thread.c         |  8 ++++----
 13 files changed, 27 insertions(+), 33 deletions(-)

diff --git a/drivers/event/octeontx/ssovf_evdev_selftest.c b/drivers/event/octeontx/ssovf_evdev_selftest.c
index 239362fcf549..06370840ba36 100644
--- a/drivers/event/octeontx/ssovf_evdev_selftest.c
+++ b/drivers/event/octeontx/ssovf_evdev_selftest.c
@@ -577,7 +577,7 @@ wait_workers_to_join(int lcore, const rte_atomic32_t *count)
 	RTE_SET_USED(count);
 
 	print_cycles = cycles = rte_get_timer_cycles();
-	while (rte_eal_get_lcore_state(lcore) != FINISHED) {
+	while (rte_eal_get_lcore_state(lcore) != RTE_LCORE_FINISHED) {
 		uint64_t new_cycles = rte_get_timer_cycles();
 
 		if (new_cycles - print_cycles > rte_get_timer_hz()) {
diff --git a/drivers/event/sw/sw_evdev_selftest.c b/drivers/event/sw/sw_evdev_selftest.c
index 38c21fa0fa3d..af5724aa348a 100644
--- a/drivers/event/sw/sw_evdev_selftest.c
+++ b/drivers/event/sw/sw_evdev_selftest.c
@@ -3116,8 +3116,8 @@ worker_loopback(struct test *t, uint8_t disable_implicit_release)
 	rte_eal_remote_launch(worker_loopback_worker_fn, t, w_lcore);
 
 	print_cycles = cycles = rte_get_timer_cycles();
-	while (rte_eal_get_lcore_state(p_lcore) != FINISHED ||
-			rte_eal_get_lcore_state(w_lcore) != FINISHED) {
+	while (rte_eal_get_lcore_state(p_lcore) != RTE_LCORE_FINISHED ||
+	       rte_eal_get_lcore_state(w_lcore) != RTE_LCORE_FINISHED) {
 
 		rte_service_run_iter_on_app_lcore(t->service_id, 1);
 
diff --git a/drivers/net/softnic/rte_eth_softnic_thread.c b/drivers/net/softnic/rte_eth_softnic_thread.c
index d610b1617e77..ddff2b81c169 100644
--- a/drivers/net/softnic/rte_eth_softnic_thread.c
+++ b/drivers/net/softnic/rte_eth_softnic_thread.c
@@ -113,10 +113,7 @@ thread_is_valid(struct pmd_internals *softnic, uint32_t thread_id)
 static inline int
 thread_is_running(uint32_t thread_id)
 {
-	enum rte_lcore_state_t thread_state;
-
-	thread_state = rte_eal_get_lcore_state(thread_id);
-	return (thread_state == RUNNING)? 1 : 0;
+	return rte_eal_get_lcore_state(thread_id) == RTE_LCORE_RUNNING;
 }
 
 static int32_t
diff --git a/examples/bond/main.c b/examples/bond/main.c
index 1c0df9d46797..42af07aa0227 100644
--- a/examples/bond/main.c
+++ b/examples/bond/main.c
@@ -533,7 +533,7 @@ static void cmd_start_parsed(__attribute__((unused)) void *parsed_result,
 	rte_spinlock_trylock(&global_flag_stru_p->lock);
 	if (global_flag_stru_p->LcoreMainIsRunning == 0) {
 		if (rte_eal_get_lcore_state(global_flag_stru_p->LcoreMainCore)
-		    != WAIT) {
+		    != RTE_LCORE_WAITING) {
 			rte_spinlock_unlock(&global_flag_stru_p->lock);
 			return;
 		}
@@ -801,7 +801,7 @@ main(int argc, char *argv[])
 
 	/* check state of lcores */
 	RTE_LCORE_FOREACH_SLAVE(slave_core_id) {
-		if (rte_eal_get_lcore_state(slave_core_id) != WAIT)
+		if (rte_eal_get_lcore_state(slave_core_id) != RTE_LCORE_WAITING)
 			return -EBUSY;
 	}
 
diff --git a/examples/ip_pipeline/thread.c b/examples/ip_pipeline/thread.c
index 272fbbeed1bc..3a62a0aee8bc 100644
--- a/examples/ip_pipeline/thread.c
+++ b/examples/ip_pipeline/thread.c
@@ -158,10 +158,7 @@ thread_init(void)
 static inline int
 thread_is_running(uint32_t thread_id)
 {
-	enum rte_lcore_state_t thread_state;
-
-	thread_state = rte_eal_get_lcore_state(thread_id);
-	return (thread_state == RUNNING) ? 1 : 0;
+	return rte_eal_get_lcore_state(thread_id) == RTE_LCORE_RUNNING;
 }
 
 /**
diff --git a/examples/l2fwd-keepalive/main.c b/examples/l2fwd-keepalive/main.c
index 9831a4323785..f56e35cba519 100644
--- a/examples/l2fwd-keepalive/main.c
+++ b/examples/l2fwd-keepalive/main.c
@@ -502,7 +502,7 @@ dead_core(__rte_unused void *ptr_data, const int id_core)
 	if (terminate_signal_received)
 		return;
 	printf("Dead core %i - restarting..\n", id_core);
-	if (rte_eal_get_lcore_state(id_core) == FINISHED) {
+	if (rte_eal_get_lcore_state(id_core) == RTE_LCORE_FINISHED) {
 		rte_eal_wait_lcore(id_core);
 		rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 	} else {
diff --git a/lib/librte_eal/common/eal_common_launch.c b/lib/librte_eal/common/eal_common_launch.c
index fe0ba3f0d617..74a3f1a28432 100644
--- a/lib/librte_eal/common/eal_common_launch.c
+++ b/lib/librte_eal/common/eal_common_launch.c
@@ -21,17 +21,17 @@
 int
 rte_eal_wait_lcore(unsigned slave_id)
 {
-	if (lcore_config[slave_id].state == WAIT)
+	if (lcore_config[slave_id].state == RTE_LCORE_WAITING)
 		return 0;
 
-	while (lcore_config[slave_id].state != WAIT &&
-	       lcore_config[slave_id].state != FINISHED)
+	while (lcore_config[slave_id].state != RTE_LCORE_WAITING &&
+	       lcore_config[slave_id].state != RTE_LCORE_FINISHED)
 		rte_pause();
 
 	rte_rmb();
 
 	/* we are in finished state, go to wait state */
-	lcore_config[slave_id].state = WAIT;
+	lcore_config[slave_id].state = RTE_LCORE_WAITING;
 	return lcore_config[slave_id].ret;
 }
 
@@ -49,7 +49,7 @@ rte_eal_mp_remote_launch(int (*f)(void *), void *arg,
 
 	/* check state of lcores */
 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
-		if (lcore_config[lcore_id].state != WAIT)
+		if (lcore_config[lcore_id].state != RTE_LCORE_WAITING)
 			return -EBUSY;
 	}
 
@@ -60,7 +60,7 @@ rte_eal_mp_remote_launch(int (*f)(void *), void *arg,
 
 	if (call_master == CALL_MASTER) {
 		lcore_config[master].ret = f(arg);
-		lcore_config[master].state = FINISHED;
+		lcore_config[master].state = RTE_LCORE_FINISHED;
 	}
 
 	return 0;
diff --git a/lib/librte_eal/common/include/rte_launch.h b/lib/librte_eal/common/include/rte_launch.h
index 06a671752ace..286ca31c98ab 100644
--- a/lib/librte_eal/common/include/rte_launch.h
+++ b/lib/librte_eal/common/include/rte_launch.h
@@ -19,9 +19,9 @@ extern "C" {
  * State of an lcore.
  */
 enum rte_lcore_state_t {
-	WAIT,       /**< waiting a new command */
-	RUNNING,    /**< executing command */
-	FINISHED,   /**< command executed */
+	RTE_LCORE_WAITING,    /**< waiting a new command */
+	RTE_LCORE_RUNNING,    /**< executing command */
+	RTE_LCORE_FINISHED,   /**< command executed */
 };
 
 /**
diff --git a/lib/librte_eal/common/rte_service.c b/lib/librte_eal/common/rte_service.c
index 5f75e5a53fbf..8dd7586027ff 100644
--- a/lib/librte_eal/common/rte_service.c
+++ b/lib/librte_eal/common/rte_service.c
@@ -450,7 +450,7 @@ rte_service_runner_func(void *arg)
 		rte_smp_rmb();
 	}
 
-	lcore_config[lcore].state = WAIT;
+	lcore_config[lcore].state = RTE_LCORE_WAITING;
 
 	return 0;
 }
diff --git a/lib/librte_eal/freebsd/eal/eal.c b/lib/librte_eal/freebsd/eal/eal.c
index 4eaa53195e04..50a858c88405 100644
--- a/lib/librte_eal/freebsd/eal/eal.c
+++ b/lib/librte_eal/freebsd/eal/eal.c
@@ -784,7 +784,7 @@ rte_eal_init(int argc, char **argv)
 		if (pipe(lcore_config[i].pipe_slave2master) < 0)
 			rte_panic("Cannot create pipe\n");
 
-		lcore_config[i].state = WAIT;
+		lcore_config[i].state = RTE_LCORE_WAITING;
 
 		/* create a thread for each lcore */
 		ret = pthread_create(&lcore_config[i].thread_id, NULL,
diff --git a/lib/librte_eal/freebsd/eal/eal_thread.c b/lib/librte_eal/freebsd/eal/eal_thread.c
index 309b5872666b..f25e84fa312b 100644
--- a/lib/librte_eal/freebsd/eal/eal_thread.c
+++ b/lib/librte_eal/freebsd/eal/eal_thread.c
@@ -41,7 +41,7 @@ rte_eal_remote_launch(int (*f)(void *), void *arg, unsigned slave_id)
 	int m2s = lcore_config[slave_id].pipe_master2slave[1];
 	int s2m = lcore_config[slave_id].pipe_slave2master[0];
 
-	if (lcore_config[slave_id].state != WAIT)
+	if (lcore_config[slave_id].state != RTE_LCORE_WAITING)
 		return -EBUSY;
 
 	lcore_config[slave_id].f = f;
@@ -136,7 +136,7 @@ eal_thread_loop(__attribute__((unused)) void *arg)
 		if (n <= 0)
 			rte_panic("cannot read on configuration pipe\n");
 
-		lcore_config[lcore_id].state = RUNNING;
+		lcore_config[lcore_id].state = RTE_LCORE_RUNNING;
 
 		/* send ack */
 		n = 0;
@@ -153,7 +153,7 @@ eal_thread_loop(__attribute__((unused)) void *arg)
 		ret = lcore_config[lcore_id].f(fct_arg);
 		lcore_config[lcore_id].ret = ret;
 		rte_wmb();
-		lcore_config[lcore_id].state = FINISHED;
+		lcore_config[lcore_id].state = RTE_LCORE_FINISHED;
 	}
 
 	/* never reached */
diff --git a/lib/librte_eal/linux/eal/eal.c b/lib/librte_eal/linux/eal/eal.c
index 3e1d6eb6a1f3..92d7d652b905 100644
--- a/lib/librte_eal/linux/eal/eal.c
+++ b/lib/librte_eal/linux/eal/eal.c
@@ -1158,7 +1158,7 @@ rte_eal_init(int argc, char **argv)
 		if (pipe(lcore_config[i].pipe_slave2master) < 0)
 			rte_panic("Cannot create pipe\n");
 
-		lcore_config[i].state = WAIT;
+		lcore_config[i].state = RTE_LCORE_WAITING;
 
 		/* create a thread for each lcore */
 		ret = pthread_create(&lcore_config[i].thread_id, NULL,
diff --git a/lib/librte_eal/linux/eal/eal_thread.c b/lib/librte_eal/linux/eal/eal_thread.c
index 379773b683e8..058692a45412 100644
--- a/lib/librte_eal/linux/eal/eal_thread.c
+++ b/lib/librte_eal/linux/eal/eal_thread.c
@@ -41,7 +41,7 @@ rte_eal_remote_launch(int (*f)(void *), void *arg, unsigned slave_id)
 	int m2s = lcore_config[slave_id].pipe_master2slave[1];
 	int s2m = lcore_config[slave_id].pipe_slave2master[0];
 
-	if (lcore_config[slave_id].state != WAIT)
+	if (lcore_config[slave_id].state != RTE_LCORE_WAITING)
 		return -EBUSY;
 
 	lcore_config[slave_id].f = f;
@@ -136,7 +136,7 @@ eal_thread_loop(__attribute__((unused)) void *arg)
 		if (n <= 0)
 			rte_panic("cannot read on configuration pipe\n");
 
-		lcore_config[lcore_id].state = RUNNING;
+		lcore_config[lcore_id].state = RTE_LCORE_RUNNING;
 
 		/* send ack */
 		n = 0;
@@ -158,9 +158,9 @@ eal_thread_loop(__attribute__((unused)) void *arg)
 		 * state, because the application will not lcore_wait() for it.
 		 */
 		if (lcore_config[lcore_id].core_role == ROLE_SERVICE)
-			lcore_config[lcore_id].state = WAIT;
+			lcore_config[lcore_id].state = RTE_LCORE_WAITING;
 		else
-			lcore_config[lcore_id].state = FINISHED;
+			lcore_config[lcore_id].state = RTE_LCORE_FINISHED;
 	}
 
 	/* never reached */
-- 
2.20.1



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