Commit 8557b1c2 authored by Pawel Wodkowski's avatar Pawel Wodkowski Committed by Ben Walker
Browse files

env: add single-producer, single-consumer ring type 



This case will be used in incoming vhost patches.

Change-Id: I62d569c01e9b8bf25c9293dff827d1b4406cea04
Signed-off-by: default avatarPawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/362334


Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: default avatarSPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent fadfd849

include/spdk/env.h

+1 −0
Original line number Diff line number Diff line
@@ -230,6 +230,7 @@ void spdk_delay_us(unsigned int us); 
struct spdk_ring;



enum spdk_ring_type {

	SPDK_RING_TYPE_SP_SC,		/* Single-producer, single-consumer */

	SPDK_RING_TYPE_MP_SC,		/* Multi-producer, single-consumer */

};

lib/env_dpdk/env.c

+11 −3
Original line number Diff line number Diff line
@@ -264,15 +264,23 @@ spdk_ring_create(enum spdk_ring_type type, size_t count, size_t ele_size, int so 
{

	char ring_name[64];

	static uint32_t ring_num = 0;



	if (type != SPDK_RING_TYPE_MP_SC) {

	unsigned flags = 0;



	switch (type) {

	case SPDK_RING_TYPE_SP_SC:

		flags = RING_F_SP_ENQ | RING_F_SC_DEQ;

		break;

	case SPDK_RING_TYPE_MP_SC:

		flags = RING_F_SC_DEQ;

		break;

	default:

		return NULL;

	}



	snprintf(ring_name, sizeof(ring_name), "spdk_ring_%u",

		 __sync_fetch_and_add(&ring_num, 1));



	return (struct spdk_ring *)rte_ring_create(ring_name, count, socket_id, RING_F_SC_DEQ);

	return (struct spdk_ring *)rte_ring_create(ring_name, count, socket_id, flags);

}



void