From patchwork Thu Feb 5 01:13:23 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Hemminger X-Patchwork-Id: 2987 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 B4F81B3E3; Thu, 5 Feb 2015 02:13:37 +0100 (CET) Received: from mail-pa0-f43.google.com (mail-pa0-f43.google.com [209.85.220.43]) by dpdk.org (Postfix) with ESMTP id ACA1BB3D6 for ; Thu, 5 Feb 2015 02:13:35 +0100 (CET) Received: by mail-pa0-f43.google.com with SMTP id eu11so6427598pac.2 for ; Wed, 04 Feb 2015 17:13:35 -0800 (PST) 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=6laUR5CyHtnAajE9UXgJqFf2+Y9wCXebD0fsQMOTIGw=; b=XJtYeVMJn6JZhqe8gdS5cPCriOm8m2ygrVaJwYRSKNJ5cNgw6z3qRhgCBdZMTP42sb 6UG+eVMHnq1SYflzZeZQrWdnylbHXUBXBb9YYGpdhyCccaEmTNvVUmacpeES1suV6S05 klbFUqroU5DyU4bcfpWaSLI1WztjonxtWOLYsIZmebrH22RnJaFDTTJZZYu4IKvmskFz U6AhYctPo/F8Of6kchxBwbw/gFRBjv1bXt5Adjjd5cC8sJFvb5pU3xwD0nEdMz7/SFOR fil/jfuE3hZP5PU2fk12+zwZxD9gtHOb7RuDV/gpnoTuzW2IHH/g/wO586GLT/7PkVlU hCEw== X-Gm-Message-State: ALoCoQnCvya6Hu9/at83F2ZaW2soEc1pFszP0r0C/hN1itE+HxRZ2WooXqqHjkEimRFzP3pYsFuU X-Received: by 10.68.190.101 with SMTP id gp5mr1787582pbc.30.1423098815020; Wed, 04 Feb 2015 17:13:35 -0800 (PST) Received: from urahara.brocade.com (static-50-53-82-155.bvtn.or.frontiernet.net. [50.53.82.155]) by mx.google.com with ESMTPSA id cz1sm3236673pdb.32.2015.02.04.17.13.33 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 04 Feb 2015 17:13:34 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Date: Wed, 4 Feb 2015 17:13:23 -0800 Message-Id: <1423098809-21305-2-git-send-email-stephen@networkplumber.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1423098809-21305-1-git-send-email-stephen@networkplumber.org> References: <1423098809-21305-1-git-send-email-stephen@networkplumber.org> Cc: KY Srinivasan , Stephen Hemminger Subject: [dpdk-dev] [PATCH 1/7] ether: add function to query for link state interrupt 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" From: Stephen Hemminger Allow application to query whether link state will work. This is also part of abstracting dependency on PCI. Signed-off-by: Stephen Hemminger --- lib/librte_ether/rte_ethdev.c | 14 ++++++++++++++ lib/librte_ether/rte_ethdev.h | 12 ++++++++++++ 2 files changed, 26 insertions(+) diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c index ea3a1fb..4d803d0 100644 --- a/lib/librte_ether/rte_ethdev.c +++ b/lib/librte_ether/rte_ethdev.c @@ -1264,6 +1264,20 @@ rte_eth_link_get_nowait(uint8_t port_id, struct rte_eth_link *eth_link) } } +int +rte_eth_has_link_state(uint8_t port_id) +{ + struct rte_eth_dev *dev; + + if (port_id >= nb_ports) { + PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id); + return 0; + } + dev = &rte_eth_devices[port_id]; + + return (dev->pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC) != 0; +} + void rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats) { diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index 1200c1c..9d43ca3 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -2038,6 +2038,18 @@ extern void rte_eth_link_get_nowait(uint8_t port_id, struct rte_eth_link *link); /** + * Test whether device supports link state interrupt mode. + * + * @param port_id + * The port identifier of the Ethernet device. + * @return + * - (1) if link state interrupt is supported + * - (0) if link state interrupt is not supported + */ +extern int +rte_eth_has_link_state(uint8_t port_id); + +/** * Retrieve the general I/O statistics of an Ethernet device. * * @param port_id