From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f68.google.com (mail-pg0-f68.google.com [74.125.83.68]) by dpdk.org (Postfix) with ESMTP id D47841B355 for ; Tue, 16 Jan 2018 19:26:10 +0100 (CET) Received: by mail-pg0-f68.google.com with SMTP id w17so4090688pgv.6 for ; Tue, 16 Jan 2018 10:26:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=QBl0pDBfnLnMUPHpc7omJRCjRu5NNJhB+lqwtoDuGtQ=; b=QNhuMfA5nkAl1slhBAe+H8csf/LNX2NeL5bz3wYcf1QEtBZnhXVD80ByfxP2ZguMvg 9ajuvZn72rqF0WqykkrfVYNZi8TLGq/QnfKlj6DIWVDRGkGx0maKAWvmvjxPQy7HRJvt uTaOFBWnRn98IrQBviK4MS5QECGekcmT9KdSU2hPiEghA/s8leGS+s5PQS7v0lgYs+ip lrM0JOOYqIXUilDCxd9cPxsbbQ0BvIUYommRMBtbtxnMurxb0aahmmAOIUnTjCPCfyGn FNxTmQwYCr61D36tBCd0+oZnN2uy+jtGO980XpIjfMZjWlGAB0xFOqg4bJos3igPSWqd 0tnw== 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; bh=QBl0pDBfnLnMUPHpc7omJRCjRu5NNJhB+lqwtoDuGtQ=; b=QDMP6llF56mU11b0LYThx/LPPjdbNdLZdVsY7fxe6dRLVDuQLt93r97eC3HlIDB9sB GGsgrBMMrUfjEL4ccvWAgzT4k1kbVu//hvqiA/k1z2usoM0fUXoaLVCc+NewtUMAR86M UnoRQf5qrosZm0xEXb+LVaYfntRRvZhlOuaJJ7ZC6g0+3z/OkKOX5GgfBPGkxgEgL83e c7iCVyYUQhn3mrX+fV2TAQeEYK4p4jc3CjuxDYk1lQkc45KiG5EEMLxcz+yJazqKrjdy rpkvEm16UnUFQakZ0khmMlF+3mo/b1IQD3upENqxMhtQpNC5RAh+C3lr165ZBJWbkywY iQow== X-Gm-Message-State: AKGB3mIVclpXVwFZdGWlfV1U8wRgs9yYk/RjkAULkdjF/W7cHzfPYcmp FG9C/EmLw7ns2iTJLL6kSRpL1FF9eeg= X-Google-Smtp-Source: ACJfBovGFQqnXN2hf15zr1kQVGS3OSsl/ZBBshbcZ3Pwt5eg1UgbzIIsy9SFvs98mGY4KLfdcWD50Q== X-Received: by 10.99.95.193 with SMTP id t184mr26508799pgb.189.1516127169678; Tue, 16 Jan 2018 10:26:09 -0800 (PST) Received: from xeon-e3.lan (204-195-18-133.wavecable.com. [204.195.18.133]) by smtp.gmail.com with ESMTPSA id x17sm3940497pge.50.2018.01.16.10.26.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Jan 2018 10:26:08 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger Date: Tue, 16 Jan 2018 10:25:49 -0800 Message-Id: <20180116182558.6254-7-stephen@networkplumber.org> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180116182558.6254-1-stephen@networkplumber.org> References: <20180116182558.6254-1-stephen@networkplumber.org> Subject: [dpdk-dev] [PATCH v4 06/15] net/nfp: use rte_eth_linkstatus functions 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, 16 Jan 2018 18:26:11 -0000 Use new rte_eth_linkstatus_get/set helper function. Signed-off-by: Stephen Hemminger --- drivers/net/nfp/nfp_net.c | 77 +++++------------------------------------------ 1 file changed, 7 insertions(+), 70 deletions(-) diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c index 0501156bacb7..80a676dacf60 100644 --- a/drivers/net/nfp/nfp_net.c +++ b/drivers/net/nfp/nfp_net.c @@ -204,57 +204,6 @@ nn_cfg_writeq(struct nfp_net_hw *hw, int off, uint64_t val) nn_writeq(rte_cpu_to_le_64(val), hw->ctrl_bar + off); } -/* - * Atomically reads link status information from global structure rte_eth_dev. - * - * @param dev - * - Pointer to the structure rte_eth_dev to read from. - * - Pointer to the buffer to be saved with the link status. - * - * @return - * - On success, zero. - * - On failure, negative value. - */ -static inline int -nfp_net_dev_atomic_read_link_status(struct rte_eth_dev *dev, - struct rte_eth_link *link) -{ - struct rte_eth_link *dst = link; - struct rte_eth_link *src = &dev->data->dev_link; - - if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst, - *(uint64_t *)src) == 0) - return -1; - - return 0; -} - -/* - * Atomically writes the link status information into global - * structure rte_eth_dev. - * - * @param dev - * - Pointer to the structure rte_eth_dev to read from. - * - Pointer to the buffer to be saved with the link status. - * - * @return - * - On success, zero. - * - On failure, negative value. - */ -static inline int -nfp_net_dev_atomic_write_link_status(struct rte_eth_dev *dev, - struct rte_eth_link *link) -{ - struct rte_eth_link *dst = &dev->data->dev_link; - struct rte_eth_link *src = link; - - if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst, - *(uint64_t *)src) == 0) - return -1; - - return 0; -} - static void nfp_net_rx_queue_release_mbufs(struct nfp_net_rxq *rxq) { @@ -977,7 +926,7 @@ static int nfp_net_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete) { struct nfp_net_hw *hw; - struct rte_eth_link link, old; + struct rte_eth_link link; uint32_t nn_link_status; static const uint32_t ls_to_ethtool[] = { @@ -995,9 +944,6 @@ nfp_net_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete) hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private); - memset(&old, 0, sizeof(old)); - nfp_net_dev_atomic_read_link_status(dev, &old); - nn_link_status = nn_cfg_readl(hw, NFP_NET_CFG_STS); memset(&link, 0, sizeof(struct rte_eth_link)); @@ -1015,16 +961,10 @@ nfp_net_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete) else link.link_speed = ls_to_ethtool[nn_link_status]; - if (old.link_status != link.link_status) { - nfp_net_dev_atomic_write_link_status(dev, &link); - if (link.link_status) - PMD_DRV_LOG(INFO, "NIC Link is Up\n"); - else - PMD_DRV_LOG(INFO, "NIC Link is Down\n"); - return 0; - } - - return -1; + if (rte_eth_linkstatus_set(dev, &link)) + PMD_DRV_LOG(INFO, "NIC Link is %s\n", + link.link_status ? "Up" : "Down"); + return 0; } static int @@ -1354,8 +1294,7 @@ nfp_net_dev_link_status_print(struct rte_eth_dev *dev) struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); struct rte_eth_link link; - memset(&link, 0, sizeof(link)); - nfp_net_dev_atomic_read_link_status(dev, &link); + rte_eth_linkstatus_get(dev, &link); if (link.link_status) RTE_LOG(INFO, PMD, "Port %d: Link Up - speed %u Mbps - %s\n", dev->data->port_id, link.link_speed, @@ -1408,9 +1347,7 @@ nfp_net_dev_interrupt_handler(void *param) PMD_DRV_LOG(DEBUG, "We got a LSC interrupt!!!\n"); - /* get the link status */ - memset(&link, 0, sizeof(link)); - nfp_net_dev_atomic_read_link_status(dev, &link); + rte_eth_linkstatus_get(dev, &link); nfp_net_link_update(dev, 0); -- 2.15.1