From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f196.google.com (mail-wr0-f196.google.com [209.85.128.196]) by dpdk.org (Postfix) with ESMTP id 2C524271 for ; Tue, 24 Apr 2018 00:41:36 +0200 (CEST) Received: by mail-wr0-f196.google.com with SMTP id v60-v6so45432729wrc.7 for ; Mon, 23 Apr 2018 15:41:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=7MaBsIgamWp7DX2lD9sqLOqVt0aF3yNHBsMTk75euWs=; b=EqpJxiLUoGJf/+z9SfZxkJTiyukv2QcFlro2IhLPKjs1iE24X7ElvNjfGe3KLVcYyy jVundU4BMxyJex4eAOwzonyULiGPC+HV+ZLoUBa5vc8plcJAPbinw3cyK82Nv5m2zYvn qOPJUEXLnFBl4G/Qteen2/yZdCEHT18p4YoxU4mAwAcefDHN9BFpqj68r6i4RBbvAq0K yz/DdGmgd06V56piD7ggRLTYBe38py+D7HZBGQdrZgq+WYeAsdssoiC4zjCuPZIl4zh2 NXR/GqQiQ7juNM1oOg3JRVdRrK0CxA78XCVPKiU0scay+AftgfD7YedOUeEhLKCxlDHo KriA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=7MaBsIgamWp7DX2lD9sqLOqVt0aF3yNHBsMTk75euWs=; b=BQ8xhPd8g/8zk5XwVcbTpYRLMrRIV+Gfmp8ygp6nVdjVhHfgCH7W+SdFrRSrg5xX+0 EQtWx3QvsO9HF+FYHfX+iS9Biu/avLDuF3v3PZlReYYSfJKPKA5iiXCZsxMRd4Q6EPTg gW1rfqlKYYgiIVQfwRoKp/kZF8d6kKF6UKptZHya0aDLUh291hsCPZURcG2DaBuV9hEq ze8xcxVrZqhZj1Ej8+O9Q8mMsxQuEJ/fTVszrAfQLaVUaduoLgnZLktdbBgjCLISl+Ah MVV5Xa2CBfXgS0VbojTZak6T/y025VhyQ/bI6jnSmcRkQOkqrr5UVI5jdECZiTXxnh8N bM6A== X-Gm-Message-State: ALQs6tA0qe5dDEkRa1n8BESQ17/CYra+3CqLf7RPOvzyaCm4UyqgPxXn EltcaMGSfzow9ZV2/WqmylMSzAHd X-Google-Smtp-Source: AB8JxZq2Fth5SZODRWRtI8iZncjtWwl9u27ryBsIDS5TXwc3fgw/JgmWhSyl8XopEx0vv1YKhefL6A== X-Received: by 10.28.133.12 with SMTP id h12mr8749967wmd.136.1524523295365; Mon, 23 Apr 2018 15:41:35 -0700 (PDT) Received: from bidouze.dev.6wind.com. (host.78.145.23.62.rev.coltfrance.com. [62.23.145.78]) by smtp.gmail.com with ESMTPSA id x189sm1590705wmg.0.2018.04.23.15.41.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 23 Apr 2018 15:41:34 -0700 (PDT) From: Gaetan Rivet To: dev@dpdk.org Cc: Gaetan Rivet Date: Tue, 24 Apr 2018 00:41:01 +0200 Message-Id: <4ae5a6e418b19a458aefee0621af9cc7baf76aab.1524522515.git.gaetan.rivet@6wind.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: In-Reply-To: References: Subject: [dpdk-dev] [PATCH v4 01/10] devargs: introduce iterator 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: Mon, 23 Apr 2018 22:41:36 -0000 In preparation to making devargs_list private. Bus drivers generally need to access rte_devargs pertaining to their operations. This match is a common operation for bus drivers. Add a new accessor for the rte_devargs list. Signed-off-by: Gaetan Rivet --- lib/librte_eal/common/eal_common_devargs.c | 20 ++++++++++++++++++++ lib/librte_eal/common/include/rte_devargs.h | 20 ++++++++++++++++++++ lib/librte_eal/rte_eal_version.map | 1 + 3 files changed, 41 insertions(+) diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c index 810b3e18f..c6c5eabcf 100644 --- a/lib/librte_eal/common/eal_common_devargs.c +++ b/lib/librte_eal/common/eal_common_devargs.c @@ -207,3 +207,23 @@ rte_eal_devargs_dump(FILE *f) devargs->name, devargs->args); } } + +/* bus-aware rte_devargs iterator. */ +__rte_experimental +struct rte_devargs * +rte_eal_devargs_next(const char *busname, const struct rte_devargs *start) +{ + struct rte_devargs *da; + + if (start != NULL) + da = TAILQ_NEXT(start, next); + else + da = TAILQ_FIRST(&devargs_list); + while (da != NULL) { + if (busname == NULL || + (strcmp(busname, da->bus->name) == 0)) + return da; + da = TAILQ_NEXT(da, next); + } + return NULL; +} diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h index 84e5e23c4..969a10449 100644 --- a/lib/librte_eal/common/include/rte_devargs.h +++ b/lib/librte_eal/common/include/rte_devargs.h @@ -189,6 +189,26 @@ rte_eal_devargs_type_count(enum rte_devtype devtype); */ void rte_eal_devargs_dump(FILE *f); +/** + * Find next rte_devargs matching the provided bus name. + * + * @param busname + * Limit the iteration to devargs related to buses + * matching this name. + * Will return any next rte_devargs if NULL. + * + * @param start + * Starting iteration point. The iteration will start at + * the first rte_devargs if NULL. + * + * @return + * Next rte_devargs entry matching the requested bus, + * NULL if there is none. + */ +__rte_experimental +struct rte_devargs * +rte_eal_devargs_next(const char *busname, const struct rte_devargs *start); + #ifdef __cplusplus } #endif diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map index d02d80b8a..74c779068 100644 --- a/lib/librte_eal/rte_eal_version.map +++ b/lib/librte_eal/rte_eal_version.map @@ -219,6 +219,7 @@ EXPERIMENTAL { rte_dev_event_monitor_stop; rte_eal_cleanup; rte_eal_devargs_insert; + rte_eal_devargs_next; rte_eal_devargs_parse; rte_eal_devargs_remove; rte_eal_hotplug_add; -- 2.11.0