From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f194.google.com (mail-wr0-f194.google.com [209.85.128.194]) by dpdk.org (Postfix) with ESMTP id AA3D95F1F for ; Wed, 21 Mar 2018 00:20:34 +0100 (CET) Received: by mail-wr0-f194.google.com with SMTP id s18so3401368wrg.9 for ; Tue, 20 Mar 2018 16:20:34 -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=ItS/XdEsspRFLRjVKmdIpMINF7jAv3/t7plok8XOhVQ=; b=lZZOYCEYgbhBIGabZfSQ+umV6MxNTRQoPQm6uUnIksoK1l2VHTsVmarF0xHXeIejTa 8bEv8E8bakcOrhRNFNhQIaTjLClkNtTJcQPw54pCjw5oERdl7h0bnRcYX5oxIihfc6qH oLu47ioFAbLme77h92Mt1zdvlznj8dD3E4e7RtJtFfAlMhEuY0DOlSLWAXDfF9oyX5Jp 98SL5xcRVj+g6wm3lRKqiSTcRLfXYR1aRMFvx5dEQ1MY7wDmSibGeiNdmY9/V0BrV7Ga eOwsNL5SmA62EEWIFOYNmEGfdUCQuWlCQPt0iF4rCFCebH/tc36Qt3Wh0t4WwE+q6Mm/ +kQA== 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=ItS/XdEsspRFLRjVKmdIpMINF7jAv3/t7plok8XOhVQ=; b=NV0YM6veI0z7LDiWlUfSjiBTs3EY4GPO5T1gFAsn2ZD7uvDKRsijsQa3x9NIQ6asT2 OyP/3R/eSygJxbDG7j9OvvJbjxnJ5JogLpw8nYu7BBveUyPXNaFtcu9t1X+NJYTOE3lY sbTELhXQsdgL0Tn8joNXxi8nqgbth5RqfibWZai3cEpV87TkzCUeaVMHpujrblHmxEr1 fKjLONkzJdBUD03LZLfdDsJvUfVjOSpgriF18PW6CvnYyx95rB06dbjOMqscvDtpM+HZ Vq0pE55YtSnwsAyY3oBo/HaHo2EJn/FucXU80j0FlOr/ndDrxG/ULHT9kdFFsHpCiCGS 4Dkw== X-Gm-Message-State: AElRT7FihpE0V1jpuAFUoz0ouVRqeW3h+6IjRs8NKJLz9rOLGfLKOq6p oZ4D4h22LWHOJc7IUft8gE7Fc1XB X-Google-Smtp-Source: AG47ELuOnv/OFtokaLSc50sDGTA9Odb/dkcFZ+eZkmofFT9Vvw0nWSEfd+3i8Yz0pmB6tmyGS1pBaA== X-Received: by 10.223.210.82 with SMTP id o18mr15071491wri.85.1521588033951; Tue, 20 Mar 2018 16:20:33 -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 m135sm3983479wma.2.2018.03.20.16.20.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 20 Mar 2018 16:20:33 -0700 (PDT) From: Gaetan Rivet To: dev@dpdk.org Cc: Gaetan Rivet Date: Wed, 21 Mar 2018 00:20:02 +0100 Message-Id: <5d49fe469f56c443c8a95688db1b96f13f169652.1521587199.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 v3 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: Tue, 20 Mar 2018 23:20:34 -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 d12360235..02a040a8b 100644 --- a/lib/librte_eal/rte_eal_version.map +++ b/lib/librte_eal/rte_eal_version.map @@ -216,6 +216,7 @@ EXPERIMENTAL { 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