From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 6083CF91E for ; Wed, 11 Jan 2017 16:06:23 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 11 Jan 2017 07:06:23 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,346,1477983600"; d="scan'208";a="29056894" Received: from sivswdev01.ir.intel.com (HELO localhost.localdomain) ([10.237.217.45]) by orsmga002.jf.intel.com with ESMTP; 11 Jan 2017 07:06:21 -0800 From: Bruce Richardson To: olivier.matz@6wind.com Cc: dev@dpdk.org, Bruce Richardson Date: Wed, 11 Jan 2017 15:05:24 +0000 Message-Id: <1484147125-5948-11-git-send-email-bruce.richardson@intel.com> X-Mailer: git-send-email 1.7.0.7 In-Reply-To: <1484147125-5948-1-git-send-email-bruce.richardson@intel.com> References: <1484147125-5948-1-git-send-email-bruce.richardson@intel.com> Subject: [dpdk-dev] [RFC PATCH 10/11] ring: reuse typed rings management functions X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Jan 2017 15:06:24 -0000 remove code from rte_ring.c that is present in the typed rings implementation. Have the rte_ring functions just call the typed (rte_void_ring) equivalents. Signed-off-by: Bruce Richardson --- lib/librte_ring/rte_ring.c | 242 ++------------------------------------------- 1 file changed, 8 insertions(+), 234 deletions(-) diff --git a/lib/librte_ring/rte_ring.c b/lib/librte_ring/rte_ring.c index b6215f6..3171549 100644 --- a/lib/librte_ring/rte_ring.c +++ b/lib/librte_ring/rte_ring.c @@ -94,65 +94,18 @@ struct rte_tailq_elem rte_ring_tailq = { }; EAL_REGISTER_TAILQ(rte_ring_tailq) -/* true if x is a power of 2 */ -#define POWEROF2(x) ((((x)-1) & (x)) == 0) - /* return the size of memory occupied by a ring */ ssize_t rte_ring_get_memsize(unsigned count) { - ssize_t sz; - - /* count must be a power of 2 */ - if ((!POWEROF2(count)) || (count > RTE_RING_SZ_MASK )) { - RTE_LOG(ERR, RING, - "Requested size is invalid, must be power of 2, and " - "do not exceed the size limit %u\n", RTE_RING_SZ_MASK); - return -EINVAL; - } - - sz = sizeof(struct rte_ring) + count * sizeof(void *); - sz = RTE_ALIGN(sz, RTE_CACHE_LINE_SIZE); - return sz; + return rte_void_ring_get_memsize(count); } int rte_ring_init(struct rte_ring *r, const char *name, unsigned count, unsigned flags) { - int ret; - - /* compilation-time checks */ - RTE_BUILD_BUG_ON((sizeof(struct rte_ring) & - RTE_CACHE_LINE_MASK) != 0); -#ifdef RTE_RING_SPLIT_PROD_CONS - RTE_BUILD_BUG_ON((offsetof(struct rte_ring, cons) & - RTE_CACHE_LINE_MASK) != 0); -#endif - RTE_BUILD_BUG_ON((offsetof(struct rte_ring, prod) & - RTE_CACHE_LINE_MASK) != 0); -#ifdef RTE_LIBRTE_RING_DEBUG - RTE_BUILD_BUG_ON((sizeof(struct rte_ring_debug_stats) & - RTE_CACHE_LINE_MASK) != 0); - RTE_BUILD_BUG_ON((offsetof(struct rte_ring, stats) & - RTE_CACHE_LINE_MASK) != 0); -#endif - - /* init the ring structure */ - memset(r, 0, sizeof(*r)); - ret = snprintf(r->name, sizeof(r->name), "%s", name); - if (ret < 0 || ret >= (int)sizeof(r->name)) - return -ENAMETOOLONG; - r->flags = flags; - r->prod.watermark = count; - r->prod.sp_enqueue = !!(flags & RING_F_SP_ENQ); - r->cons.sc_dequeue = !!(flags & RING_F_SC_DEQ); - r->prod.size = r->cons.size = count; - r->prod.mask = r->cons.mask = count-1; - r->prod.head = r->cons.head = 0; - r->prod.tail = r->cons.tail = 0; - - return 0; + return rte_void_ring_init(r, name, count, flags); } /* create the ring */ @@ -160,106 +113,14 @@ struct rte_ring * rte_ring_create(const char *name, unsigned count, int socket_id, unsigned flags) { - char mz_name[RTE_MEMZONE_NAMESIZE]; - struct rte_ring *r; - struct rte_tailq_entry *te; - const struct rte_memzone *mz; - ssize_t ring_size; - int mz_flags = 0; - struct rte_ring_list* ring_list = NULL; - int ret; - - ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list); - - ring_size = rte_ring_get_memsize(count); - if (ring_size < 0) { - rte_errno = ring_size; - return NULL; - } - - ret = snprintf(mz_name, sizeof(mz_name), "%s%s", - RTE_RING_MZ_PREFIX, name); - if (ret < 0 || ret >= (int)sizeof(mz_name)) { - rte_errno = ENAMETOOLONG; - return NULL; - } - - te = rte_zmalloc("RING_TAILQ_ENTRY", sizeof(*te), 0); - if (te == NULL) { - RTE_LOG(ERR, RING, "Cannot reserve memory for tailq\n"); - rte_errno = ENOMEM; - return NULL; - } - - rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK); - - /* reserve a memory zone for this ring. If we can't get rte_config or - * we are secondary process, the memzone_reserve function will set - * rte_errno for us appropriately - hence no check in this this function */ - mz = rte_memzone_reserve(mz_name, ring_size, socket_id, mz_flags); - if (mz != NULL) { - r = mz->addr; - /* no need to check return value here, we already checked the - * arguments above */ - rte_ring_init(r, name, count, flags); - - te->data = (void *) r; - r->memzone = mz; - - TAILQ_INSERT_TAIL(ring_list, te, next); - } else { - r = NULL; - RTE_LOG(ERR, RING, "Cannot reserve memory\n"); - rte_free(te); - } - rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); - - return r; + return rte_void_ring_create(name, count, socket_id, flags); } /* free the ring */ void rte_ring_free(struct rte_ring *r) { - struct rte_ring_list *ring_list = NULL; - struct rte_tailq_entry *te; - - if (r == NULL) - return; - - /* - * Ring was not created with rte_ring_create, - * therefore, there is no memzone to free. - */ - if (r->memzone == NULL) { - RTE_LOG(ERR, RING, "Cannot free ring (not created with rte_ring_create()"); - return; - } - - if (rte_memzone_free(r->memzone) != 0) { - RTE_LOG(ERR, RING, "Cannot free memory\n"); - return; - } - - ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list); - rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK); - - /* find out tailq entry */ - TAILQ_FOREACH(te, ring_list, next) { - if (te->data == (void *) r) - break; - } - - if (te == NULL) { - rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); - return; - } - - TAILQ_REMOVE(ring_list, te, next); - - rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); - - rte_free(te); + rte_void_ring_free(r); } /* @@ -269,113 +130,26 @@ rte_ring_free(struct rte_ring *r) int rte_ring_set_water_mark(struct rte_ring *r, unsigned count) { - if (count >= r->prod.size) - return -EINVAL; - - /* if count is 0, disable the watermarking */ - if (count == 0) - count = r->prod.size; - - r->prod.watermark = count; - return 0; + return rte_void_ring_set_water_mark(r, count); } /* dump the status of the ring on the console */ void rte_ring_dump(FILE *f, const struct rte_ring *r) { -#ifdef RTE_LIBRTE_RING_DEBUG - struct rte_ring_debug_stats sum; - unsigned lcore_id; -#endif - - fprintf(f, "ring <%s>@%p\n", r->name, r); - fprintf(f, " flags=%x\n", r->flags); - fprintf(f, " size=%"PRIu32"\n", r->prod.size); - fprintf(f, " ct=%"PRIu32"\n", r->cons.tail); - fprintf(f, " ch=%"PRIu32"\n", r->cons.head); - fprintf(f, " pt=%"PRIu32"\n", r->prod.tail); - fprintf(f, " ph=%"PRIu32"\n", r->prod.head); - fprintf(f, " used=%u\n", rte_ring_count(r)); - fprintf(f, " avail=%u\n", rte_ring_free_count(r)); - if (r->prod.watermark == r->prod.size) - fprintf(f, " watermark=0\n"); - else - fprintf(f, " watermark=%"PRIu32"\n", r->prod.watermark); - - /* sum and dump statistics */ -#ifdef RTE_LIBRTE_RING_DEBUG - memset(&sum, 0, sizeof(sum)); - for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { - sum.enq_success_bulk += r->stats[lcore_id].enq_success_bulk; - sum.enq_success_objs += r->stats[lcore_id].enq_success_objs; - sum.enq_quota_bulk += r->stats[lcore_id].enq_quota_bulk; - sum.enq_quota_objs += r->stats[lcore_id].enq_quota_objs; - sum.enq_fail_bulk += r->stats[lcore_id].enq_fail_bulk; - sum.enq_fail_objs += r->stats[lcore_id].enq_fail_objs; - sum.deq_success_bulk += r->stats[lcore_id].deq_success_bulk; - sum.deq_success_objs += r->stats[lcore_id].deq_success_objs; - sum.deq_fail_bulk += r->stats[lcore_id].deq_fail_bulk; - sum.deq_fail_objs += r->stats[lcore_id].deq_fail_objs; - } - fprintf(f, " size=%"PRIu32"\n", r->prod.size); - fprintf(f, " enq_success_bulk=%"PRIu64"\n", sum.enq_success_bulk); - fprintf(f, " enq_success_objs=%"PRIu64"\n", sum.enq_success_objs); - fprintf(f, " enq_quota_bulk=%"PRIu64"\n", sum.enq_quota_bulk); - fprintf(f, " enq_quota_objs=%"PRIu64"\n", sum.enq_quota_objs); - fprintf(f, " enq_fail_bulk=%"PRIu64"\n", sum.enq_fail_bulk); - fprintf(f, " enq_fail_objs=%"PRIu64"\n", sum.enq_fail_objs); - fprintf(f, " deq_success_bulk=%"PRIu64"\n", sum.deq_success_bulk); - fprintf(f, " deq_success_objs=%"PRIu64"\n", sum.deq_success_objs); - fprintf(f, " deq_fail_bulk=%"PRIu64"\n", sum.deq_fail_bulk); - fprintf(f, " deq_fail_objs=%"PRIu64"\n", sum.deq_fail_objs); -#else - fprintf(f, " no statistics available\n"); -#endif + rte_void_ring_dump(f, r); } /* dump the status of all rings on the console */ void rte_ring_list_dump(FILE *f) { - const struct rte_tailq_entry *te; - struct rte_ring_list *ring_list; - - ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list); - - rte_rwlock_read_lock(RTE_EAL_TAILQ_RWLOCK); - - TAILQ_FOREACH(te, ring_list, next) { - rte_ring_dump(f, (struct rte_ring *) te->data); - } - - rte_rwlock_read_unlock(RTE_EAL_TAILQ_RWLOCK); + rte_void_ring_list_dump(f); } /* search a ring from its name */ struct rte_ring * rte_ring_lookup(const char *name) { - struct rte_tailq_entry *te; - struct rte_ring *r = NULL; - struct rte_ring_list *ring_list; - - ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list); - - rte_rwlock_read_lock(RTE_EAL_TAILQ_RWLOCK); - - TAILQ_FOREACH(te, ring_list, next) { - r = (struct rte_ring *) te->data; - if (strncmp(name, r->name, RTE_RING_NAMESIZE) == 0) - break; - } - - rte_rwlock_read_unlock(RTE_EAL_TAILQ_RWLOCK); - - if (te == NULL) { - rte_errno = ENOENT; - return NULL; - } - - return r; + return rte_void_ring_lookup(name); } -- 2.9.3