From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12AD4C43219 for ; Mon, 29 Apr 2019 08:36:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CB9AF214AE for ; Mon, 29 Apr 2019 08:35:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556526959; bh=DVwUCiWkka9qSQ5iT3UBevW65T70pQ15TVQej26pceY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cvRDbb1MHbtewlABvXrY2Qb6vg0xsbg7cIKOadVcZcFnvmlK/Q7Oa07Eb/+MkDGF3 VQ8ujUayIAeDkawxZbfGBQZzuHC6aHXY5gYHu15af3b4JqqmBknIm2EbMjtSBnElww wqQ6CNbL11tGtm0X4ZEnMVIi/0rKEQsKgUju9fks= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727989AbfD2If6 (ORCPT ); Mon, 29 Apr 2019 04:35:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:48898 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727611AbfD2If4 (ORCPT ); Mon, 29 Apr 2019 04:35:56 -0400 Received: from localhost (unknown [77.138.135.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BBD0D214AE; Mon, 29 Apr 2019 08:35:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556526955; bh=DVwUCiWkka9qSQ5iT3UBevW65T70pQ15TVQej26pceY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ThieOPg1DHoX4ACBAAueVhqOF5vn8dcxIoZMl9bY9NXNdJycii1ez+Q1zi7jj661w VEj1r53JW2dl1qTgmzXR9GkfVB1Kr/LeghSY7EMWP5Zp+p8ExnWN1M9rQY182MaFQy Yx32SSJjUBmGS5pytfx0x6YYONpWxGiMCmJRUUIs= From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Leon Romanovsky , RDMA mailing list , Majd Dibbiny , Mark Zhang , Saeed Mahameed , linux-netdev Subject: [PATCH rdma-next v2 17/17] RDMA/nldev: Allow get default counter statistics through RDMA netlink Date: Mon, 29 Apr 2019 11:34:53 +0300 Message-Id: <20190429083453.16654-18-leon@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190429083453.16654-1-leon@kernel.org> References: <20190429083453.16654-1-leon@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Mark Zhang This patch adds the ability to return the hwstats of per-port default counters (which can also be queried through sysfs nodes). Signed-off-by: Mark Zhang Signed-off-by: Leon Romanovsky --- drivers/infiniband/core/nldev.c | 101 +++++++++++++++++++++++++++++++- 1 file changed, 99 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 53c1d2d82a06..cb2dd38f49f1 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -1709,6 +1709,98 @@ static int nldev_stat_del_doit(struct sk_buff *skb, struct nlmsghdr *nlh, return ret; } +static int nldev_res_get_default_counter_doit(struct sk_buff *skb, + struct nlmsghdr *nlh, + struct netlink_ext_ack *extack, + struct nlattr *tb[]) +{ + struct rdma_hw_stats *stats; + struct nlattr *table_attr; + struct ib_device *device; + int ret, num_cnts, i; + struct sk_buff *msg; + u32 index, port; + u64 v; + + if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) + return -EINVAL; + + index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); + device = ib_device_get_by_index(sock_net(skb->sk), index); + if (!device) + return -EINVAL; + + if (!device->ops.alloc_hw_stats || !device->ops.get_hw_stats) { + ret = -EINVAL; + goto err; + } + + port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]); + if (!rdma_is_port_valid(device, port)) { + ret = -EINVAL; + goto err; + } + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) { + ret = -ENOMEM; + goto err; + } + + nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq, + RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, + RDMA_NLDEV_CMD_STAT_GET), + 0, 0); + + if (fill_nldev_handle(msg, device) || + nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port)) { + ret = -EMSGSIZE; + goto err_msg; + } + + stats = device->ops.alloc_hw_stats(device, port); + if (!stats) { + ret = -ENOMEM; + goto err_msg; + } + + num_cnts = device->ops.get_hw_stats(device, stats, port, 0); + if (num_cnts < 0) { + ret = -EINVAL; + goto err_stats; + } + + table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_STAT_HWCOUNTERS); + if (!table_attr) { + ret = -EMSGSIZE; + goto err_stats; + } + for (i = 0; i < num_cnts; i++) { + v = stats->value[i] + + rdma_counter_get_hwstat_value(device, port, i); + if (fill_stat_hwcounter_entry(msg, stats->names[i], v)) { + ret = -EMSGSIZE; + goto err_table; + } + } + nla_nest_end(msg, table_attr); + + kfree(stats); + nlmsg_end(msg, nlh); + ib_device_put(device); + return rdma_nl_unicast(msg, NETLINK_CB(skb).portid); + +err_table: + nla_nest_cancel(msg, table_attr); +err_stats: + kfree(stats); +err_msg: + nlmsg_free(msg); +err: + ib_device_put(device); + return ret; +} + static int nldev_stat_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { @@ -1725,8 +1817,13 @@ static int nldev_stat_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, if (ret) return -EINVAL; - if (!tb[RDMA_NLDEV_ATTR_STAT_MODE]) - return nldev_res_get_counter_doit(skb, nlh, extack); + if (!tb[RDMA_NLDEV_ATTR_STAT_MODE]) { + if (!tb[RDMA_NLDEV_ATTR_STAT_COUNTER_ID]) + return nldev_res_get_default_counter_doit(skb, nlh, + extack, tb); + else + return nldev_res_get_counter_doit(skb, nlh, extack); + } if (!tb[RDMA_NLDEV_ATTR_STAT_RES] || !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) -- 2.20.1