[dpdk-dev] [PATCH] event/opdl: rework loops to comply with dpdk style

Liang, Ma liang.j.ma at intel.com
Mon Jan 22 11:30:01 CET 2018


On 22 Jan 10:04, Harry van Haaren wrote:
> This commit reworks the loop counter variable declarations
> to be in line with the DPDK source code.
> 
> Fixes: 3c7f3dcfb099 ("event/opdl: add PMD main body and helper function")
> Fixes: 8ca8e3b48eff ("event/opdl: add event queue config get/set")
> Fixes: d548ef513cd7 ("event/opdl: add unit tests")
> 
> Cc: liang.j.ma at intel.com
> Cc: peter.mccarthy at intel.com
> 
> Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
> 
> ---
> 
> Compile tested for loop declarations by adding "-std=gnu90" to the
> OPDL Makefile CFLAGS variable, which now passes here. Note that DPDK
> as a whole does not compile with gnu90, so don't pass it as EXTRA_CFLAGS
> ---
>  drivers/event/opdl/Makefile            |  2 --
>  drivers/event/opdl/opdl_evdev.c        |  9 +++++----
>  drivers/event/opdl/opdl_evdev_init.c   | 23 ++++++++++++++---------
>  drivers/event/opdl/opdl_evdev_xstats.c |  9 ++++++---
>  drivers/event/opdl/opdl_test.c         |  6 ++++--
>  5 files changed, 29 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/event/opdl/Makefile b/drivers/event/opdl/Makefile
> index a8aff2c..747ae5b 100644
> --- a/drivers/event/opdl/Makefile
> +++ b/drivers/event/opdl/Makefile
> @@ -7,8 +7,6 @@ include $(RTE_SDK)/mk/rte.vars.mk
>  LIB = librte_pmd_opdl_event.a
>  
>  # build flags
> -CFLAGS += -std=c99
> -CFLAGS += -D_XOPEN_SOURCE=600
>  CFLAGS += -O3
>  CFLAGS += $(WERROR_FLAGS)
>  # for older GCC versions, allow us to initialize an event using
> diff --git a/drivers/event/opdl/opdl_evdev.c b/drivers/event/opdl/opdl_evdev.c
> index dcbf404..d5e2b60 100644
> --- a/drivers/event/opdl/opdl_evdev.c
> +++ b/drivers/event/opdl/opdl_evdev.c
> @@ -288,7 +288,8 @@ opdl_queue_setup(struct rte_eventdev *dev,
>  		}
>  	}
>  	/* Check if queue id has been setup already */
> -	for (uint32_t i = 0; i < device->nb_q_md; i++) {
> +	uint32_t i;
> +	for (i = 0; i < device->nb_q_md; i++) {
>  		if (device->q_md[i].ext_id == queue_id) {
>  			PMD_DRV_LOG(ERR, "DEV_ID:[%02d] : "
>  				     "queue id %u already setup\n",
> @@ -390,8 +391,8 @@ opdl_dump(struct rte_eventdev *dev, FILE *f)
>  
>  	fprintf(f,
>  		"\n\n -- RING STATISTICS --\n");
> -
> -	for (uint32_t i = 0; i < device->nb_opdls; i++)
> +	uint32_t i;
> +	for (i = 0; i < device->nb_opdls; i++)
>  		opdl_ring_dump(device->opdl[i], f);
>  
>  	fprintf(f,
> @@ -400,7 +401,7 @@ opdl_dump(struct rte_eventdev *dev, FILE *f)
>  		"Av. Grant Size     Av. Cycles PP"
>  		"      Empty DEQs   Non Empty DEQs   Pkts Processed\n");
>  
> -	for (uint32_t i = 0; i < device->max_port_nb; i++) {
> +	for (i = 0; i < device->max_port_nb; i++) {
>  		char queue_id[64];
>  		char total_cyc[64];
>  		const char *p_type;
> diff --git a/drivers/event/opdl/opdl_evdev_init.c b/drivers/event/opdl/opdl_evdev_init.c
> index c37d8bc..84ab258 100644
> --- a/drivers/event/opdl/opdl_evdev_init.c
> +++ b/drivers/event/opdl/opdl_evdev_init.c
> @@ -314,8 +314,8 @@ static int opdl_add_deps(struct opdl_evdev *device,
>  					     "Stages and dependents"
>  					     " are not for same opdl ring",
>  					     opdl_pmd_dev_id(device));
> -				for (uint32_t k = 0;
> -						k < device->nb_opdls; k++) {
> +				uint32_t k;
> +				for (k = 0; k < device->nb_opdls; k++) {
>  					opdl_ring_dump(device->opdl[k],
>  							stdout);
>  				}
> @@ -505,8 +505,9 @@ void
>  destroy_queues_and_rings(struct rte_eventdev *dev)
>  {
>  	struct opdl_evdev *device = opdl_pmd_priv(dev);
> +	uint32_t i;
>  
> -	for (uint32_t i = 0; i < device->nb_opdls; i++) {
> +	for (i = 0; i < device->nb_opdls; i++) {
>  		if (device->opdl[i])
>  			opdl_ring_free(device->opdl[i]);
>  	}
> @@ -639,7 +640,8 @@ create_queues_and_rings(struct rte_eventdev *dev)
>  				 OPDL_Q_POS_START,
>  				 -1);
>  
> -		for (uint32_t i = 0; i < device->nb_q_md; i++) {
> +		uint32_t i;
> +		for (i = 0; i < device->nb_q_md; i++) {
>  
>  			/* Check */
>  			if (!device->q_md[i].setup) {
> @@ -702,7 +704,8 @@ initialise_all_other_ports(struct rte_eventdev *dev)
>  
>  	struct opdl_evdev *device = opdl_pmd_priv(dev);
>  
> -	for (uint32_t i = 0; i < device->nb_ports; i++) {
> +	uint32_t i;
> +	for (i = 0; i < device->nb_ports; i++) {
>  		struct opdl_port *port = &device->ports[i];
>  		struct opdl_queue *queue = &device->queue[port->queue_id];
>  
> @@ -827,7 +830,7 @@ initialise_all_other_ports(struct rte_eventdev *dev)
>  	 * setup the last bit of stage md
>  	 */
>  	if (!err) {
> -		for (uint32_t i = 0; i < device->nb_ports; i++) {
> +		for (i = 0; i < device->nb_ports; i++) {
>  			struct opdl_port *port = &device->ports[i];
>  			struct opdl_queue *queue =
>  				&device->queue[port->queue_id];
> @@ -872,7 +875,8 @@ initialise_queue_zero_ports(struct rte_eventdev *dev)
>  	struct opdl_evdev *device = opdl_pmd_priv(dev);
>  
>  	/* Assign queue zero and figure out how many Q0 ports we have */
> -	for (uint32_t i = 0; i < device->nb_ports; i++) {
> +	uint32_t i;
> +	for (i = 0; i < device->nb_ports; i++) {
>  		struct opdl_port *port = &device->ports[i];
>  		if (port->queue_id == OPDL_INVALID_QID) {
>  			port->queue_id = 0;
> @@ -889,7 +893,7 @@ initialise_queue_zero_ports(struct rte_eventdev *dev)
>  	if (stage_inst) {
>  
>  		/* Assign the new created input stage to all relevant ports */
> -		for (uint32_t i = 0; i < device->nb_ports; i++) {
> +		for (i = 0; i < device->nb_ports; i++) {
>  			struct opdl_port *port = &device->ports[i];
>  			if (port->queue_id == 0) {
>  				queue = &device->queue[port->queue_id];
> @@ -914,8 +918,9 @@ assign_internal_queue_ids(struct rte_eventdev *dev)
>  {
>  	int err = 0;
>  	struct opdl_evdev *device = opdl_pmd_priv(dev);
> +	uint32_t i;
>  
> -	for (uint32_t i = 0; i < device->nb_ports; i++) {
> +	for (i = 0; i < device->nb_ports; i++) {
>  		struct opdl_port *port = &device->ports[i];
>  		if (port->external_qid != OPDL_INVALID_QID) {
>  			port->queue_id =
> diff --git a/drivers/event/opdl/opdl_evdev_xstats.c b/drivers/event/opdl/opdl_evdev_xstats.c
> index 94dfeee..70b84d9 100644
> --- a/drivers/event/opdl/opdl_evdev_xstats.c
> +++ b/drivers/event/opdl/opdl_evdev_xstats.c
> @@ -86,7 +86,8 @@ opdl_xstats_get_names(const struct rte_eventdev *dev,
>  
>  	uint32_t port_idx = queue_port_id * max_num_port_xstat;
>  
> -	for (uint32_t j = 0; j < max_num_port_xstat; j++) {
> +	uint32_t j;
> +	for (j = 0; j < max_num_port_xstat; j++) {
>  
>  		strcpy(xstats_names[j].name,
>  				device->port_xstat[j + port_idx].stat.name);
> @@ -121,7 +122,8 @@ opdl_xstats_get(const struct rte_eventdev *dev,
>  	uint32_t p_start = queue_port_id * max_num_port_xstat;
>  	uint32_t p_finish = p_start + max_num_port_xstat;
>  
> -	for (uint32_t i = 0; i < n; i++) {
> +	uint32_t i;
> +	for (i = 0; i < n; i++) {
>  		if (ids[i] < p_start || ids[i] >= p_finish)
>  			return -EINVAL;
>  
> @@ -142,7 +144,8 @@ opdl_xstats_get_by_name(const struct rte_eventdev *dev,
>  
>  	uint32_t max_index = device->max_port_nb * max_num_port_xstat;
>  
> -	for (uint32_t i = 0; i < max_index; i++) {
> +	uint32_t i;
> +	for (i = 0; i < max_index; i++) {
>  
>  		if (strncmp(name,
>  			   device->port_xstat[i].stat.name,
> diff --git a/drivers/event/opdl/opdl_test.c b/drivers/event/opdl/opdl_test.c
> index 44a5cc5..13d4f6b 100644
> --- a/drivers/event/opdl/opdl_test.c
> +++ b/drivers/event/opdl/opdl_test.c
> @@ -433,7 +433,8 @@ atomic_basic(struct test *t)
>  				return -1;
>  			}
>  
> -			for (int j = 0; j < 3; j++) {
> +			int j;
> +			for (j = 0; j < 3; j++) {
>  				deq_ev[j].op = RTE_EVENT_OP_FORWARD;
>  				deq_ev[j].queue_id = t->qid[1];
>  			}
> @@ -495,8 +496,9 @@ static int
>  check_statistics(void)
>  {
>  	int num_ports = 3; /* Hard-coded for this app */
> +	int i;
>  
> -	for (int i = 0; i < num_ports; i++) {
> +	for (i = 0; i < num_ports; i++) {
>  		int num_stats, num_stats_returned;
>  
>  		num_stats = rte_event_dev_xstats_names_get(0,
> -- 
> 2.7.4
> 
Many thanks Harry. 

Acked-by: Liang Ma  <liang.j.ma at intel.com>


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