From patchwork Wed Jun 8 09:47:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?N=C3=A9lio_Laranjeiro?= X-Patchwork-Id: 13346 X-Patchwork-Delegate: bruce.richardson@intel.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 19BDEAD8F; Wed, 8 Jun 2016 11:48:30 +0200 (CEST) Received: from mail-wm0-f53.google.com (mail-wm0-f53.google.com [74.125.82.53]) by dpdk.org (Postfix) with ESMTP id A9FE9AA35 for ; Wed, 8 Jun 2016 11:48:27 +0200 (CEST) Received: by mail-wm0-f53.google.com with SMTP id k204so8715109wmk.0 for ; Wed, 08 Jun 2016 02:48:27 -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; bh=FIzPIHRXyg5Sz6/zU8YNP7dJjzq+u177Pvi2S8/XTVo=; b=bxcMJ5BkN6sjHY3GEgdigjXVLHQRWZK4jdhSx0INg0e8qZAefNtfPDI2MTPvulUBkZ CLT15KvuQ4LdjEa+N+6TCWBCHiSLkFE5lUbVFNSN9nZ7r/HaDg84AI+vDEee0UyD43c4 1TuaxfxUTzYpHdbWiSQR8jzYDVp4vr3b4ZEElkghRBhrhDjTseieUn4ta+xL9BGYu1TW U+fSNWurtothm4Vhs1JmAVwoqDBOCBqSQfApcyHEirsrB8h9g66AqE4pF49y9ZocVTAq FUW2Q8r/D4R6B20EdCKsAXRmj5qUcipftmaOb6c+Xc+ote/QOeiSSptcWYzebYVQkfQ2 DXHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=FIzPIHRXyg5Sz6/zU8YNP7dJjzq+u177Pvi2S8/XTVo=; b=Fk41VHiUao4Y5iyzvCJWw7ic9cXcWnIEsAHSRHZEVASnFKHe8xT8BCYx3Q61oNj4NQ FpLQbU5oQn2FdPiqrKRyARCtBkm2a0wu15AAPq5+ze63Du4EU8sTm9TPL7ErlRnrHmt2 rysBzDwlw1rCP9LnKEHrtoFR+GkIcSC09eKKVmCvCungg7a2Xvo3CAExVifoBU876Bey hpi3MepMRMPN7g/e8PPyi6V/8bR/asCGPg2897olLSihMsRA5YovN/Dj4cp0jmCQi2Kg SHKRgb+J9p6WaXM0F+eAHr2j8tPw5CmOKiKybUU4M//lvXdmEwQ9O/0qL+nMrfEGd/G+ KdYQ== X-Gm-Message-State: ALyK8tIGSU25b+xJVrWOpjEz2w/Tf5mPcb23ipmQDzq6ZzFAMr+qP6euzhk67tUvIcuTAB+I X-Received: by 10.194.205.105 with SMTP id lf9mr3519277wjc.25.1465379307183; Wed, 08 Jun 2016 02:48:27 -0700 (PDT) Received: from ping.vm.6wind.com (guy78-3-82-239-227-177.fbx.proxad.net. [82.239.227.177]) by smtp.gmail.com with ESMTPSA id c185sm23899214wme.9.2016.06.08.02.48.26 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 08 Jun 2016 02:48:26 -0700 (PDT) From: Nelio Laranjeiro To: dev@dpdk.org Cc: Adrien Mazarguil Date: Wed, 8 Jun 2016 11:47:57 +0200 Message-Id: <1465379291-25310-11-git-send-email-nelio.laranjeiro@6wind.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1465379291-25310-1-git-send-email-nelio.laranjeiro@6wind.com> References: <1465379291-25310-1-git-send-email-nelio.laranjeiro@6wind.com> Subject: [dpdk-dev] [PATCH 10/24] mlx5: add support for configuration through kvargs X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The intent is to replace the remaining compile-time options and environment variables with a common mean of runtime configuration. This commit only adds the kvargs handling code, subsequent commits will update the rest. Signed-off-by: Nelio Laranjeiro Signed-off-by: Adrien Mazarguil --- drivers/net/mlx5/mlx5.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index e9cc38a..62e6e16 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -37,6 +37,7 @@ #include #include #include +#include #include /* Verbs header. */ @@ -57,6 +58,7 @@ #include #include #include +#include #ifdef PEDANTIC #pragma GCC diagnostic error "-pedantic" #endif @@ -237,6 +239,70 @@ mlx5_dev_idx(struct rte_pci_addr *pci_addr) return ret; } +/** + * Verify and store value for device argument. + * + * @param[in] key + * Key argument to verify. + * @param[in] val + * Value associated with key. + * @param opaque + * User data. + * + * @return + * 0 on success, errno value on failure. + */ +static int +mlx5_args_check(const char *key, const char *val, void *opaque) +{ + struct priv *priv = opaque; + + /* No parameters are expected at the moment. */ + (void)priv; + (void)val; + WARN("%s: unknown parameter", key); + return EINVAL; +} + +/** + * Parse device parameters. + * + * @param priv + * Pointer to private structure. + * @param devargs + * Device arguments structure. + * + * @return + * 0 on success, errno value on failure. + */ +static int +mlx5_args(struct priv *priv, struct rte_devargs *devargs) +{ + static const char *params[] = { + NULL, + }; + struct rte_kvargs *kvlist; + int ret = 0; + int i; + + if (devargs == NULL) + return 0; + kvlist = rte_kvargs_parse(devargs->args, params); + if (kvlist == NULL) + return 0; + /* Process parameters. */ + for (i = 0; (i != RTE_DIM(params)); ++i) { + if (rte_kvargs_count(kvlist, params[i])) { + ret = rte_kvargs_process(kvlist, params[i], + mlx5_args_check, priv); + if (ret != 0) + return ret; + } + } + rte_kvargs_free(kvlist); + return 0; +} + static struct eth_driver mlx5_driver; /** @@ -408,6 +474,12 @@ mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) priv->port = port; priv->pd = pd; priv->mtu = ETHER_MTU; + err = mlx5_args(priv, pci_dev->devargs); + if (err) { + ERROR("failed to process device arguments: %s", + strerror(err)); + goto port_error; + } if (ibv_exp_query_device(ctx, &exp_device_attr)) { ERROR("ibv_exp_query_device() failed"); goto port_error;