From patchwork Fri Feb 2 14:08:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Pen X-Patchwork-Id: 10196807 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DD5FF6037D for ; Fri, 2 Feb 2018 14:11:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CD47528E6C for ; Fri, 2 Feb 2018 14:11:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CAC4E28E8D; Fri, 2 Feb 2018 14:11:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E240428E6F for ; Fri, 2 Feb 2018 14:11:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751472AbeBBOLC (ORCPT ); Fri, 2 Feb 2018 09:11:02 -0500 Received: from mail-wr0-f196.google.com ([209.85.128.196]:38127 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751979AbeBBOKx (ORCPT ); Fri, 2 Feb 2018 09:10:53 -0500 Received: by mail-wr0-f196.google.com with SMTP id t94so11171909wrc.5 for ; Fri, 02 Feb 2018 06:10:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=profitbricks-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8IANzM4rnILe7JTU+fBs84VfRLJqtmpStEPKfRAJf6c=; b=IqswHWANsFVrlWDQ8PTm+HsXNwqWFwJLwsMHx2xEky4NCP1qkrCa+3xSCHrIJjov7T 7FwnqX+nK7eIrjNb2jwdqul5BIkdNMOtcvEG+wBAV9fkDbjjlUdqoKgxH6aEJF/YMAxR pqLO4iGUxl0Z46wUMgZq0Ej/cJz8uu+QWnAKBFsB5sqynvjA3Y+0WGwLat4KPVWvJohC krpTfylCVl5qXTVO2yDjRnSV3/sNLRz6hM+rzxfkNjGqHrA4u/uk1r7XNFp0LaHiUXUt njvDVyClM1spsmU7KYoRycl0Bf067ufQD1ztW54cfhflfjO5nciM3ENqLRJJvhUdPt0S 9vCA== 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=8IANzM4rnILe7JTU+fBs84VfRLJqtmpStEPKfRAJf6c=; b=rxEU40IWVXW2XLsSMLPdQO2hc/Yc3oseGC/nGUZswyGH54L/1r/QjgeOGTeqK8x9i9 ZHkrm45bOBodpB7gvVJ1hZPv5qyiWt3KdW7QhrDhKn1FqAOaFWab8FER4kMiMEX4ppS0 SxUkiPL7JwhkUZpt12lnhDbAjpedID59mKOlj24b9sQI+D2+6uDDwgzCAq0IcTAQ+T3h 0wNYlQpuvwgnSD2qsKkDd/DIpHOX/OJsPo+e8lwZIM3x9ANeEiJDnj9ggSQ17IWa9Naj 4sLrhg1NtTyJGIpHXK1+B8WiJ0+HxoQTxO+xb7VM1CmTklerHy0NL6p8kJQUXx5RVuO8 V4OA== X-Gm-Message-State: AKwxytd3267MWiYfmX/mNKN1oRt8yxuvRcBuUj4yafMlt2YTdgYJmlMx UWX7M49oPLwgWqZfBK/DcO72XMkU X-Google-Smtp-Source: AH8x224s35s92M5PTJfLae0mITg3zzqsfBE+9SZU8Vx7fRIl7MYpfvoU5WsrQRzQCtyrC8QePZczeA== X-Received: by 10.223.131.133 with SMTP id 5mr29951049wre.153.1517580651421; Fri, 02 Feb 2018 06:10:51 -0800 (PST) Received: from pb.pb.local ([62.217.45.26]) by smtp.gmail.com with ESMTPSA id v186sm798819wmf.17.2018.02.02.06.10.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 02 Feb 2018 06:10:50 -0800 (PST) From: Roman Pen To: linux-block@vger.kernel.org, linux-rdma@vger.kernel.org Cc: Jens Axboe , Christoph Hellwig , Sagi Grimberg , Bart Van Assche , Or Gerlitz , Roman Pen , Danil Kipnis , Jack Wang Subject: [PATCH 08/24] ibtrs: server: private header with server structs and functions Date: Fri, 2 Feb 2018 15:08:48 +0100 Message-Id: <20180202140904.2017-9-roman.penyaev@profitbricks.com> X-Mailer: git-send-email 2.13.1 In-Reply-To: <20180202140904.2017-1-roman.penyaev@profitbricks.com> References: <20180202140904.2017-1-roman.penyaev@profitbricks.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This header describes main structs and functions used by ibtrs-server module, mainly for accepting IBTRS sessions, creating/destroying sysfs entries, accounting statistics on server side. Signed-off-by: Roman Pen Signed-off-by: Danil Kipnis Cc: Jack Wang --- drivers/infiniband/ulp/ibtrs/ibtrs-srv.h | 169 +++++++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) diff --git a/drivers/infiniband/ulp/ibtrs/ibtrs-srv.h b/drivers/infiniband/ulp/ibtrs/ibtrs-srv.h new file mode 100644 index 000000000000..f54e159eaf2a --- /dev/null +++ b/drivers/infiniband/ulp/ibtrs/ibtrs-srv.h @@ -0,0 +1,169 @@ +/* + * InfiniBand Transport Layer + * + * Copyright (c) 2014 - 2017 ProfitBricks GmbH. All rights reserved. + * Authors: Fabian Holler + * Jack Wang + * Kleber Souza + * Danil Kipnis + * Roman Penyaev + * Milind Dumbare + * + * Copyright (c) 2017 - 2018 ProfitBricks GmbH. All rights reserved. + * Authors: Danil Kipnis + * Roman Penyaev + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef IBTRS_SRV_H +#define IBTRS_SRV_H + +#include +#include "ibtrs-pri.h" + +/** + * enum ibtrs_srv_state - Server states. + */ +enum ibtrs_srv_state { + IBTRS_SRV_CONNECTING, + IBTRS_SRV_CONNECTED, + IBTRS_SRV_CLOSING, + IBTRS_SRV_CLOSED, +}; + +static inline const char *ibtrs_srv_state_str(enum ibtrs_srv_state state) +{ + switch (state) { + case IBTRS_SRV_CONNECTING: + return "IBTRS_SRV_CONNECTING"; + case IBTRS_SRV_CONNECTED: + return "IBTRS_SRV_CONNECTED"; + case IBTRS_SRV_CLOSING: + return "IBTRS_SRV_CLOSING"; + case IBTRS_SRV_CLOSED: + return "IBTRS_SRV_CLOSED"; + default: + return "UNKNOWN"; + } +} + +struct ibtrs_stats_wc_comp { + atomic64_t calls; + atomic64_t total_wc_cnt; +}; + +struct ibtrs_srv_stats_rdma_stats { + struct { + atomic64_t cnt; + atomic64_t size_total; + } dir[2]; +}; + +struct ibtrs_srv_stats { + struct ibtrs_srv_stats_rdma_stats rdma_stats; + atomic_t apm_cnt; + struct ibtrs_stats_wc_comp wc_comp; +}; + +struct ibtrs_srv_con { + struct ibtrs_con c; + atomic_t wr_cnt; +}; + +struct ibtrs_srv_op { + struct ibtrs_srv_con *con; + u32 msg_id; + u8 dir; + u64 data_dma_addr; + struct ibtrs_msg_rdma_read *msg; + struct ib_rdma_wr *tx_wr; + struct ib_sge *tx_sg; +}; + +struct ibtrs_srv_sess { + struct ibtrs_sess s; + struct ibtrs_srv *srv; + struct work_struct close_work; + enum ibtrs_srv_state state; + spinlock_t state_lock; + int cur_cq_vector; + struct ibtrs_srv_op **ops_ids; + atomic_t ids_inflight; + wait_queue_head_t ids_waitq; + dma_addr_t *rdma_addr; + bool established; + unsigned int mem_bits; + struct kobject kobj; + struct kobject kobj_stats; + struct ibtrs_srv_stats stats; +}; + +struct ibtrs_srv { + struct list_head paths_list; + int paths_up; + struct mutex paths_ev_mutex; + size_t paths_num; + struct mutex paths_mutex; + uuid_t paths_uuid; + refcount_t refcount; + struct ibtrs_srv_ctx *ctx; + struct list_head ctx_list; + void *priv; + size_t queue_depth; + struct page **chunks; + struct kobject kobj; + struct kobject kobj_paths; +}; + +struct ibtrs_srv_ctx { + rdma_ev_fn *rdma_ev; + link_ev_fn *link_ev; + struct rdma_cm_id *cm_id_ip; + struct rdma_cm_id *cm_id_ib; + struct mutex srv_mutex; + struct list_head srv_list; +}; + +/* See ibtrs-log.h */ +#define TYPES_TO_SESSNAME(obj) \ + LIST(CASE(obj, struct ibtrs_srv_sess *, s.sessname)) + +void ibtrs_srv_queue_close(struct ibtrs_srv_sess *sess); + +/* ibtrs-srv-stats.c */ + +void ibtrs_srv_update_rdma_stats(struct ibtrs_srv_stats *s, size_t size, int d); +void ibtrs_srv_update_wc_stats(struct ibtrs_srv_stats *s); + +int ibtrs_srv_reset_rdma_stats(struct ibtrs_srv_stats *stats, bool enable); +ssize_t ibtrs_srv_stats_rdma_to_str(struct ibtrs_srv_stats *stats, + char *page, size_t len); +int ibtrs_srv_reset_wc_completion_stats(struct ibtrs_srv_stats *stats, + bool enable); +int ibtrs_srv_stats_wc_completion_to_str(struct ibtrs_srv_stats *stats, char *buf, + size_t len); +int ibtrs_srv_reset_all_stats(struct ibtrs_srv_stats *stats, bool enable); +ssize_t ibtrs_srv_reset_all_help(struct ibtrs_srv_stats *stats, + char *page, size_t len); + +/* ibtrs-srv-sysfs.c */ + +int ibtrs_srv_create_sysfs_module_files(void); +void ibtrs_srv_destroy_sysfs_module_files(void); + +int ibtrs_srv_create_sess_files(struct ibtrs_srv_sess *sess); +void ibtrs_srv_destroy_sess_files(struct ibtrs_srv_sess *sess); + +#endif /* IBTRS_SRV_H */