Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/3856/?format=api
{ "id": 3856, "url": "http://patches.dpdk.org/api/patches/3856/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/1425505810-9269-8-git-send-email-david.marchand@6wind.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<1425505810-9269-8-git-send-email-david.marchand@6wind.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1425505810-9269-8-git-send-email-david.marchand@6wind.com", "date": "2015-03-04T21:50:07", "name": "[dpdk-dev,07/10] tailq: introduce dynamic register system", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "b69f6950495b2e3b0a925b97e6ff5909719432df", "submitter": { "id": 3, "url": "http://patches.dpdk.org/api/people/3/?format=api", "name": "David Marchand", "email": "david.marchand@6wind.com" }, "delegate": null, "mbox": "http://patches.dpdk.org/project/dpdk/patch/1425505810-9269-8-git-send-email-david.marchand@6wind.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/3856/comments/", "check": "pending", "checks": "http://patches.dpdk.org/api/patches/3856/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 8307C9A8C;\n\tWed, 4 Mar 2015 22:50:29 +0100 (CET)", "from mail-we0-f174.google.com (mail-we0-f174.google.com\n\t[74.125.82.174]) by dpdk.org (Postfix) with ESMTP id 9F6839A88\n\tfor <dev@dpdk.org>; Wed, 4 Mar 2015 22:50:26 +0100 (CET)", "by wesk11 with SMTP id k11so49128480wes.11\n\tfor <dev@dpdk.org>; Wed, 04 Mar 2015 13:50:26 -0800 (PST)", "from alcyon.dev.6wind.com (6wind.net2.nerim.net. [213.41.180.237])\n\tby mx.google.com with ESMTPSA id\n\tbf8sm6037947wjb.37.2015.03.04.13.50.25 for <dev@dpdk.org>\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tWed, 04 Mar 2015 13:50:25 -0800 (PST)" ], "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20130820;\n\th=x-gm-message-state:from:to:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=RhfzNAT+PB/nkvZU44eBEvekyUaQkR9UGLrDLcvxoYE=;\n\tb=kRakYhGeqc60i0pMiGxVxL1D1k9+/UMMzDg/IcEh0xDqptQSFA/erh+s+eXLqtNZX0\n\tSZpg0pPCNR8wfAVlVYAgjw0OT1OJ30yRazXRwAcsARlQ14O6IrLxIlCuhIV6zNoCZcnq\n\t6II2cPR8rjlRoJIQrF4wbsDH/5BhmU+na/0iwE+X11AyAnShO+EwLDjgH0KWJGCc2mqT\n\tT8CfZAfMbUu9CWj8yllLxpCPJEOM5Djggm+xa86lJnYFBZkXt55X82e/L0+glxqvPNyt\n\tqsU6rVEEt9++UHqylOEP40n8gLkEo/hfvlfM8K2+MQj3sIsEY0Y4kS1KWB4d0MPN0Wiu\n\tW+Kg==", "X-Gm-Message-State": "ALoCoQmecwDESh15WoonnlvMDyqEZQMUZxjUoph5G++l3wOS8N51mGFY0yhv7ElNfgk7u1vq5zje", "X-Received": "by 10.181.27.201 with SMTP id ji9mr29817528wid.20.1425505826542; \n\tWed, 04 Mar 2015 13:50:26 -0800 (PST)", "From": "David Marchand <david.marchand@6wind.com>", "To": "dev@dpdk.org", "Date": "Wed, 4 Mar 2015 22:50:07 +0100", "Message-Id": "<1425505810-9269-8-git-send-email-david.marchand@6wind.com>", "X-Mailer": "git-send-email 1.7.10.4", "In-Reply-To": "<1425505810-9269-1-git-send-email-david.marchand@6wind.com>", "References": "<1425505810-9269-1-git-send-email-david.marchand@6wind.com>", "Subject": "[dpdk-dev] [PATCH 07/10] tailq: introduce dynamic register system", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "This register system makes it possible to reserve a tailq for the dpdk\nlibraries.\nThe \"dynamic\" tailqs are right after the \"static\" tailqs in shared mem.\nPrimary process is responsible for writing the tailq names, so that secondary\nprocesses can find them.\n\nThis is a temp commit, \"static\" tailqs are removed after conversion of all\nusers in next commits.\n\nSigned-off-by: David Marchand <david.marchand@6wind.com>\n---\n app/test/test_tailq.c | 82 +++++++++-----\n lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 +\n lib/librte_eal/common/eal_common_tailqs.c | 130 +++++++++++++++++++++--\n lib/librte_eal/common/include/rte_tailq.h | 38 +++++++\n lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 +\n 5 files changed, 219 insertions(+), 33 deletions(-)", "diff": "diff --git a/app/test/test_tailq.c b/app/test/test_tailq.c\nindex 56656f0..c046a8a 100644\n--- a/app/test/test_tailq.c\n+++ b/app/test/test_tailq.c\n@@ -34,6 +34,7 @@\n #include <stdio.h>\n #include <stdint.h>\n #include <stdarg.h>\n+#include <string.h>\n #include <errno.h>\n #include <sys/queue.h>\n \n@@ -49,40 +50,59 @@\n \treturn 1; \\\n } while (0)\n \n-#define DEFAULT_TAILQ (RTE_TAILQ_NUM)\n+static struct rte_tailq_elem rte_dummy_tailq = {\n+\t.name = \"dummy\",\n+};\n+EAL_REGISTER_TAILQ(rte_dummy_tailq)\n+\n+static struct rte_tailq_elem rte_dummy_dyn_tailq = {\n+\t.name = \"dummy_dyn\",\n+};\n+static struct rte_tailq_elem rte_dummy_dyn2_tailq = {\n+\t.name = \"dummy_dyn\",\n+};\n \n static struct rte_tailq_entry d_elem;\n+static struct rte_tailq_entry d_dyn_elem;\n \n static int\n-test_tailq_create(void)\n+test_tailq_early(void)\n {\n \tstruct rte_tailq_entry_head *d_head;\n-\tunsigned i;\n \n-\t/* create a first tailq and check its non-null */\n-\td_head = RTE_TAILQ_LOOKUP_BY_IDX(DEFAULT_TAILQ, rte_tailq_entry_head);\n+\td_head = RTE_TAILQ_CAST(rte_dummy_tailq.head, rte_tailq_entry_head);\n \tif (d_head == NULL)\n-\t\tdo_return(\"Error allocating dummy_q0\\n\");\n+\t\tdo_return(\"Error %s has not been initialised\\n\",\n+\t\t\t rte_dummy_tailq.name);\n \n-\t/* check we can add an item to it\n-\t */\n+\t/* check we can add an item to it */\n \tTAILQ_INSERT_TAIL(d_head, &d_elem, next);\n \n-\t/* try allocating dummy_q0 again, and check for failure */\n-\tif (RTE_TAILQ_LOOKUP_BY_IDX(DEFAULT_TAILQ, rte_tailq_entry_head) == NULL)\n-\t\tdo_return(\"Error, non-null result returned when attemption to \"\n-\t\t\t\t\"re-allocate a tailq\\n\");\n+\treturn 0;\n+}\n+\n+static int\n+test_tailq_create(void)\n+{\n+\tstruct rte_tailq_entry_head *d_head;\n+\n+\t/* create a tailq and check its non-null (since we are post-eal init) */\n+\tif ((rte_eal_tailq_register(&rte_dummy_dyn_tailq) < 0) ||\n+\t (rte_dummy_dyn_tailq.head == NULL))\n+\t\tdo_return(\"Error allocating %s\\n\", rte_dummy_dyn_tailq.name);\n+\n+\td_head = RTE_TAILQ_CAST(rte_dummy_dyn_tailq.head, rte_tailq_entry_head);\n \n-\t/* now fill up the tailq slots available and check we get an error */\n-\tfor (i = RTE_TAILQ_NUM; i < RTE_MAX_TAILQ; i++){\n-\t\tif ((d_head = RTE_TAILQ_LOOKUP_BY_IDX(i,\n-\t\t\t\trte_tailq_entry_head)) == NULL)\n-\t\t\tbreak;\n-\t}\n+\t/* check we can add an item to it */\n+\tTAILQ_INSERT_TAIL(d_head, &d_dyn_elem, next);\n \n-\t/* check that we had an error return before RTE_MAX_TAILQ */\n-\tif (i != RTE_MAX_TAILQ)\n-\t\tdo_return(\"Error, we did not have a reservation as expected\\n\");\n+\tif (strcmp(rte_dummy_dyn2_tailq.name, rte_dummy_dyn_tailq.name))\n+\t\tdo_return(\"Error, something is wrong in the tailq test\\n\");\n+\n+\t/* try allocating again, and check for failure */\n+\tif (!rte_eal_tailq_register(&rte_dummy_dyn2_tailq))\n+\t\tdo_return(\"Error, registering the same tailq %s did not fail\\n\",\n+\t\t\t rte_dummy_dyn2_tailq.name);\n \n \treturn 0;\n }\n@@ -94,8 +114,10 @@ test_tailq_lookup(void)\n \tstruct rte_tailq_entry_head *d_head;\n \tstruct rte_tailq_entry *d_ptr;\n \n-\td_head = RTE_TAILQ_LOOKUP_BY_IDX(DEFAULT_TAILQ, rte_tailq_entry_head);\n-\tif (d_head == NULL)\n+\td_head = RTE_TAILQ_LOOKUP(rte_dummy_tailq.name, rte_tailq_entry_head);\n+\t/* rte_dummy_tailq has been registered by EAL_REGISTER_TAILQ */\n+\tif (d_head == NULL ||\n+\t d_head != RTE_TAILQ_CAST(rte_dummy_tailq.head, rte_tailq_entry_head))\n \t\tdo_return(\"Error with tailq lookup\\n\");\n \n \tTAILQ_FOREACH(d_ptr, d_head, next)\n@@ -103,8 +125,19 @@ test_tailq_lookup(void)\n \t\t\tdo_return(\"Error with tailq returned from lookup - \"\n \t\t\t\t\t\"expected element not found\\n\");\n \n+\td_head = RTE_TAILQ_LOOKUP(rte_dummy_dyn_tailq.name, rte_tailq_entry_head);\n+\t/* rte_dummy_dyn_tailq has been registered by test_tailq_create */\n+\tif (d_head == NULL ||\n+\t d_head != RTE_TAILQ_CAST(rte_dummy_dyn_tailq.head, rte_tailq_entry_head))\n+\t\tdo_return(\"Error with tailq lookup\\n\");\n+\n+\tTAILQ_FOREACH(d_ptr, d_head, next)\n+\t\tif (d_ptr != &d_dyn_elem)\n+\t\t\tdo_return(\"Error with tailq returned from lookup - \"\n+\t\t\t\t\t\"expected element not found\\n\");\n+\n \t/* now try a bad/error lookup */\n-\td_head = RTE_TAILQ_LOOKUP_BY_IDX(RTE_MAX_TAILQ, rte_tailq_entry_head);\n+\td_head = RTE_TAILQ_LOOKUP(\"coucou\", rte_tailq_entry_head);\n \tif (d_head != NULL)\n \t\tdo_return(\"Error, lookup does not return NULL for bad tailq name\\n\");\n \n@@ -115,6 +148,7 @@ static int\n test_tailq(void)\n {\n \tint ret = 0;\n+\tret |= test_tailq_early();\n \tret |= test_tailq_create();\n \tret |= test_tailq_lookup();\n \treturn ret;\ndiff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map\nindex c94fe8e..e42ea74 100644\n--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map\n+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map\n@@ -45,6 +45,7 @@ DPDK_2.0 {\n \trte_eal_remote_launch;\n \trte_eal_tailq_lookup;\n \trte_eal_tailq_lookup_by_idx;\n+\trte_eal_tailq_register;\n \trte_eal_wait_lcore;\n \trte_exit;\n \trte_get_hpet_cycles;\ndiff --git a/lib/librte_eal/common/eal_common_tailqs.c b/lib/librte_eal/common/eal_common_tailqs.c\nindex 975ee74..3c4e70d 100644\n--- a/lib/librte_eal/common/eal_common_tailqs.c\n+++ b/lib/librte_eal/common/eal_common_tailqs.c\n@@ -51,6 +51,7 @@\n #include <rte_branch_prediction.h>\n #include <rte_log.h>\n #include <rte_string_fns.h>\n+#include <rte_debug.h>\n \n #include \"eal_private.h\"\n \n@@ -62,6 +63,14 @@ const char* rte_tailq_names[RTE_MAX_TAILQ] = {\n #include <rte_tailq_elem.h>\n };\n \n+TAILQ_HEAD(rte_tailq_elem_head, rte_tailq_elem);\n+/* local tailq list */\n+static struct rte_tailq_elem_head rte_tailq_elem_head =\n+\tTAILQ_HEAD_INITIALIZER(rte_tailq_elem_head);\n+\n+/* number of tailqs registered, -1 before call to rte_eal_tailqs_init */\n+static int rte_tailqs_count = -1;\n+\n struct rte_tailq_head *\n rte_eal_tailq_lookup(const char *name)\n {\n@@ -72,9 +81,13 @@ rte_eal_tailq_lookup(const char *name)\n \t\treturn NULL;\n \n \tfor (i = 0; i < RTE_MAX_TAILQ; i++) {\n-\t\tif (rte_tailq_names[i] == NULL)\n-\t\t\tcontinue;\n-\t\tif (!strncmp(name, rte_tailq_names[i], RTE_TAILQ_NAMESIZE-1))\n+\t\tif (i < RTE_TAILQ_NUM &&\n+\t\t !strncmp(name, rte_tailq_names[i], RTE_TAILQ_NAMESIZE-1))\n+\t\t\treturn &mcfg->tailq_head[i];\n+\n+\t\t/* if past static entries, look at shared mem for names */\n+\t\tif (!strncmp(name, mcfg->tailq_head[i].name,\n+\t\t\t RTE_TAILQ_NAMESIZE-1))\n \t\t\treturn &mcfg->tailq_head[i];\n \t}\n \n@@ -103,31 +116,130 @@ rte_dump_tailq(FILE *f)\n \tmcfg = rte_eal_get_configuration()->mem_config;\n \n \trte_rwlock_read_lock(&mcfg->qlock);\n-\tfor (i=0; i < RTE_MAX_TAILQ; i++) {\n+\tfor (i = 0; i < RTE_MAX_TAILQ; i++) {\n \t\tconst struct rte_tailq_head *tailq = &mcfg->tailq_head[i];\n \t\tconst struct rte_tailq_entry_head *head = &tailq->tailq_head;\n+\t\tconst char *name = \"nil\";\n \n-\t\tfprintf(f, \"Tailq %u: qname:<%s>, tqh_first:%p, tqh_last:%p\\n\", i,\n-\t\t (rte_tailq_names[i] != NULL ? rte_tailq_names[i]:\"nil\"),\n-\t\t head->tqh_first, head->tqh_last);\n+\t\tif (rte_tailq_names[i])\n+\t\t\tname = rte_tailq_names[i];\n+\t\telse if (tailq->name)\n+\t\t\tname = tailq->name;\n+\n+\t\tfprintf(f, \"Tailq %u: qname:<%s>, tqh_first:%p, tqh_last:%p\\n\",\n+\t\t\ti, name, head->tqh_first, head->tqh_last);\n \t}\n \trte_rwlock_read_unlock(&mcfg->qlock);\n }\n \n+static struct rte_tailq_head *\n+rte_eal_tailq_create(const char *name)\n+{\n+\tstruct rte_tailq_head *head = NULL;\n+\n+\tif (!rte_eal_tailq_lookup(name) &&\n+\t (rte_tailqs_count + 1 < RTE_MAX_TAILQ)) {\n+\t\tstruct rte_mem_config *mcfg;\n+\n+\t\tmcfg = rte_eal_get_configuration()->mem_config;\n+\t\thead = &mcfg->tailq_head[rte_tailqs_count];\n+\t\tsnprintf(head->name, sizeof(head->name) - 1, \"%s\", name);\n+\t\tTAILQ_INIT(&head->tailq_head);\n+\t\trte_tailqs_count++;\n+\t}\n+\n+\treturn head;\n+}\n+\n+/* local register, used to store \"early\" tailqs before rte_eal_init() and to\n+ * ensure secondary process only registers tailqs once. */\n+static int\n+rte_eal_tailq_local_register(struct rte_tailq_elem *t)\n+{\n+\tstruct rte_tailq_elem *temp;\n+\n+\tTAILQ_FOREACH(temp, &rte_tailq_elem_head, next) {\n+\t\tif (!strncmp(t->name, temp->name, sizeof(temp->name)))\n+\t\t\treturn -1;\n+\t}\n+\n+\tTAILQ_INSERT_TAIL(&rte_tailq_elem_head, t, next);\n+\treturn 0;\n+}\n+\n+static void\n+rte_eal_tailq_update(struct rte_tailq_elem *t)\n+{\n+\tif (rte_eal_process_type() == RTE_PROC_PRIMARY) {\n+\t\t/* primary process is the only one that creates */\n+\t\tt->head = rte_eal_tailq_create(t->name);\n+\t} else {\n+\t\tt->head = rte_eal_tailq_lookup(t->name);\n+\t}\n+}\n+\n+int\n+rte_eal_tailq_register(struct rte_tailq_elem *t)\n+{\n+\tif (rte_eal_tailq_local_register(t) < 0) {\n+\t\trte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,\n+\t\t\t\"%s tailq is already registered\\n\", t->name);\n+\t\tgoto error;\n+\t}\n+\n+\t/* if a register happens after rte_eal_tailqs_init(), then we can update\n+\t * tailq head */\n+\tif (rte_tailqs_count >= 0) {\n+\t\trte_eal_tailq_update(t);\n+\t\tif (t->head == NULL) {\n+\t\t\trte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,\n+\t\t\t\t\"Cannot initialize tailq: %s\\n\", t->name);\n+\t\t\tTAILQ_REMOVE(&rte_tailq_elem_head, t, next);\n+\t\t\tgoto error;\n+\t\t}\n+\t}\n+\n+\treturn 0;\n+\n+error:\n+\tt->head = NULL;\n+\treturn -1;\n+}\n+\n int\n rte_eal_tailqs_init(void)\n {\n \tunsigned i;\n \tstruct rte_mem_config *mcfg = NULL;\n+\tstruct rte_tailq_elem *t;\n \n \tRTE_BUILD_BUG_ON(RTE_MAX_TAILQ < RTE_TAILQ_NUM);\n \n \tif (rte_eal_process_type() == RTE_PROC_PRIMARY) {\n \t\tmcfg = rte_eal_get_configuration()->mem_config;\n-\t\tfor (i = 0; i < RTE_MAX_TAILQ; i++)\n+\t\tfor (i = 0; i < RTE_TAILQ_NUM; i++)\n \t\t\tTAILQ_INIT(&mcfg->tailq_head[i].tailq_head);\n \t}\n \n+\t/* mark those static entries as already taken */\n+\trte_tailqs_count = RTE_TAILQ_NUM;\n+\n+\tTAILQ_FOREACH(t, &rte_tailq_elem_head, next) {\n+\t\t/* second part of register job for \"early\" tailqs, see\n+\t\t * rte_eal_tailq_register and EAL_REGISTER_TAILQ */\n+\t\trte_eal_tailq_update(t);\n+\t\tif (t->head == NULL) {\n+\t\t\trte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,\n+\t\t\t\t\"Cannot initialize tailq: %s\\n\", t->name);\n+\t\t\t/* no need to TAILQ_REMOVE, we are going to panic in\n+\t\t\t * rte_eal_init() */\n+\t\t\tgoto fail;\n+\t\t}\n+\t}\n+\n \treturn 0;\n-}\n \n+fail:\n+\trte_dump_tailq(stderr);\n+\treturn -1;\n+}\ndiff --git a/lib/librte_eal/common/include/rte_tailq.h b/lib/librte_eal/common/include/rte_tailq.h\nindex 6b7278c..df11183 100644\n--- a/lib/librte_eal/common/include/rte_tailq.h\n+++ b/lib/librte_eal/common/include/rte_tailq.h\n@@ -46,6 +46,7 @@ extern \"C\" {\n \n #include <sys/queue.h>\n #include <stdio.h>\n+#include <rte_debug.h>\n \n /** dummy structure type used by the rte_tailq APIs */\n struct rte_tailq_entry {\n@@ -67,6 +68,17 @@ TAILQ_HEAD(rte_tailq_entry_head, rte_tailq_entry);\n */\n struct rte_tailq_head {\n \tstruct rte_tailq_entry_head tailq_head; /**< NOTE: must be first element */\n+\tchar name[RTE_TAILQ_NAMESIZE];\n+};\n+\n+struct rte_tailq_elem {\n+\t/**\n+\t * Reference to head in shared mem, updated at init time by\n+\t * rte_eal_tailqs_init()\n+\t */\n+\tstruct rte_tailq_head *head;\n+\tTAILQ_ENTRY(rte_tailq_elem) next;\n+\tconst char name[RTE_TAILQ_NAMESIZE];\n };\n \n /**\n@@ -151,6 +163,32 @@ struct rte_tailq_head *rte_eal_tailq_lookup(const char *name);\n */\n struct rte_tailq_head *rte_eal_tailq_lookup_by_idx(const unsigned idx);\n \n+/**\n+ * Register a tail queue.\n+ *\n+ * Register a tail queue from shared memory.\n+ * This function is mainly used by EAL_REGISTER_TAILQ macro which is used to\n+ * register tailq from the different dpdk libraries. Since this macro is a\n+ * constructor, the function has no access to dpdk shared memory, so the\n+ * registered tailq can not be used before call to rte_eal_init() which calls\n+ * rte_eal_tailqs_init().\n+ *\n+ * @param t\n+ * The tailq element which contains the name of the tailq you want to\n+ * create (/retrieve when in secondary process).\n+ * @return\n+ * 0 on success or -1 in case of an error.\n+ */\n+int rte_eal_tailq_register(struct rte_tailq_elem *t);\n+\n+#define EAL_REGISTER_TAILQ(t) \\\n+void tailqinitfn_ ##t(void); \\\n+void __attribute__((constructor, used)) tailqinitfn_ ##t(void) \\\n+{ \\\n+\tif (rte_eal_tailq_register(&t) < 0) \\\n+\t\trte_panic(\"Cannot initialize tailq: %s\\n\", t.name); \\\n+}\n+\n #ifdef __cplusplus\n }\n #endif\ndiff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map\nindex a1ba203..3db5856 100644\n--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map\n+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map\n@@ -49,6 +49,7 @@ DPDK_2.0 {\n \trte_eal_remote_launch;\n \trte_eal_tailq_lookup;\n \trte_eal_tailq_lookup_by_idx;\n+\trte_eal_tailq_register;\n \trte_eal_vdev_init;\n \trte_eal_vdev_uninit;\n \trte_eal_wait_lcore;\n", "prefixes": [ "dpdk-dev", "07/10" ] }