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Thu, 18 Jan 2018 06:27:50 -0700 From: Hemant Agrawal To: CC: , , Date: Thu, 18 Jan 2018 18:56:29 +0530 Message-ID: <1516281992-6873-5-git-send-email-hemant.agrawal@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1516281992-6873-1-git-send-email-hemant.agrawal@nxp.com> References: <1515996674-26338-1-git-send-email-hemant.agrawal@nxp.com> <1516281992-6873-1-git-send-email-hemant.agrawal@nxp.com> X-EOPAttributedMessage: 0 X-Matching-Connectors: 131607556759969045; (91ab9b29-cfa4-454e-5278-08d120cd25b8); () X-Forefront-Antispam-Report: CIP:192.88.168.50; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(346002)(39380400002)(396003)(376002)(39860400002)(2980300002)(1110001)(1109001)(339900001)(199004)(189003)(53936002)(97736004)(2351001)(356003)(48376002)(305945005)(105606002)(5660300001)(106466001)(50466002)(4326008)(86362001)(8936002)(50226002)(8676002)(81156014)(81166006)(68736007)(498600001)(6666003)(6916009)(2950100002)(85426001)(54906003)(316002)(296002)(16586007)(47776003)(51416003)(76176011)(2906002)(104016004)(36756003)(77096007)(26005); 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR03MB2691 Subject: [dpdk-dev] [PATCH v3 4/7] mbuf: pktmbuf pool create helper for specific mempool ops 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Introduce a new helper for pktmbuf pool, which will allow the application to optionally specify the mempool ops name as well. Signed-off-by: Hemant Agrawal --- lib/librte_mbuf/rte_mbuf.c | 23 +++++++++++++++++------ lib/librte_mbuf/rte_mbuf.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+), 6 deletions(-) -- 2.7.4 diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c index 0c4d374..a256b42 100644 --- a/lib/librte_mbuf/rte_mbuf.c +++ b/lib/librte_mbuf/rte_mbuf.c @@ -149,15 +149,15 @@ rte_pktmbuf_init(struct rte_mempool *mp, m->next = NULL; } -/* helper to create a mbuf pool */ +/* Helper to create a mbuf pool with given mempool ops name*/ struct rte_mempool * -rte_pktmbuf_pool_create(const char *name, unsigned n, - unsigned cache_size, uint16_t priv_size, uint16_t data_room_size, - int socket_id) +rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n, + unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size, + int socket_id, const char *ops_name) { struct rte_mempool *mp; struct rte_pktmbuf_pool_private mbp_priv; - const char *mp_ops_name; + const char *mp_ops_name = ops_name; unsigned elt_size; int ret; @@ -177,7 +177,8 @@ rte_pktmbuf_pool_create(const char *name, unsigned n, if (mp == NULL) return NULL; - mp_ops_name = rte_mbuf_best_mempool_ops(); + if (mp_ops_name == NULL) + mp_ops_name = rte_mbuf_best_mempool_ops(); ret = rte_mempool_set_ops_byname(mp, mp_ops_name, NULL); if (ret != 0) { RTE_LOG(ERR, MBUF, "error setting mempool handler\n"); @@ -199,6 +200,16 @@ rte_pktmbuf_pool_create(const char *name, unsigned n, return mp; } +/* helper to create a mbuf pool */ +struct rte_mempool * +rte_pktmbuf_pool_create(const char *name, unsigned int n, + unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size, + int socket_id) +{ + return rte_pktmbuf_pool_create_by_ops(name, n, cache_size, priv_size, + data_room_size, socket_id, NULL); +} + /* do some sanity checks on a mbuf: panic if it fails */ void rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header) diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index a827e6e..4fee7e9 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -1089,6 +1089,48 @@ rte_pktmbuf_pool_create(const char *name, unsigned n, int socket_id); /** + * Create a mbuf pool with a given mempool ops name + * + * This function creates and initializes a packet mbuf pool. It is + * a wrapper to rte_mempool functions. + * + * @param name + * The name of the mbuf pool. + * @param n + * The number of elements in the mbuf pool. The optimum size (in terms + * of memory usage) for a mempool is when n is a power of two minus one: + * n = (2^q - 1). + * @param cache_size + * Size of the per-core object cache. See rte_mempool_create() for + * details. + * @param priv_size + * Size of application private are between the rte_mbuf structure + * and the data buffer. This value must be aligned to RTE_MBUF_PRIV_ALIGN. + * @param data_room_size + * Size of data buffer in each mbuf, including RTE_PKTMBUF_HEADROOM. + * @param socket_id + * The socket identifier where the memory should be allocated. The + * value can be *SOCKET_ID_ANY* if there is no NUMA constraint for the + * reserved zone. + * @param ops_name + * The mempool ops name to be used for this mempool instead of + * default mempool. The value can be *NULL* to use default mempool. + * @return + * The pointer to the new allocated mempool, on success. NULL on error + * with rte_errno set appropriately. Possible rte_errno values include: + * - E_RTE_NO_CONFIG - function could not get pointer to rte_config structure + * - E_RTE_SECONDARY - function was called from a secondary process instance + * - EINVAL - cache size provided is too large, or priv_size is not aligned. + * - ENOSPC - the maximum number of memzones has already been allocated + * - EEXIST - a memzone with the same name already exists + * - ENOMEM - no appropriate memory area found in which to create memzone + */ +struct rte_mempool * +rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n, + unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size, + int socket_id, const char *ops_name); + +/** * Get the data room size of mbufs stored in a pktmbuf_pool * * The data room size is the amount of data that can be stored in a