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From: Jack Wang <jinpuwang@gmail.com>
To: linux-block@vger.kernel.org, linux-rdma@vger.kernel.org
Cc: axboe@kernel.dk, hch@infradead.org, sagi@grimberg.me,
	bvanassche@acm.org, leon@kernel.org, dledford@redhat.com,
	jgg@ziepe.ca, danil.kipnis@cloud.ionos.com,
	jinpu.wang@cloud.ionos.com, rpenyaev@suse.de
Subject: [PATCH v7 19/25] block/rnbd: server: private header with server structs and functions
Date: Thu, 16 Jan 2020 13:59:09 +0100
Message-ID: <20200116125915.14815-20-jinpuwang@gmail.com> (raw)
In-Reply-To: <20200116125915.14815-1-jinpuwang@gmail.com>

From: Jack Wang <jinpu.wang@cloud.ionos.com>

This header describes main structs and functions used by rnbd-server
module, namely structs for managing sessions from different clients
and mapped (opened) devices.

Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
---
 drivers/block/rnbd/rnbd-srv.h | 81 +++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 drivers/block/rnbd/rnbd-srv.h

diff --git a/drivers/block/rnbd/rnbd-srv.h b/drivers/block/rnbd/rnbd-srv.h
new file mode 100644
index 000000000000..7567d84dca4e
--- /dev/null
+++ b/drivers/block/rnbd/rnbd-srv.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * RDMA Network Block Driver
+ *
+ * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
+ *
+ * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
+ *
+ * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
+ */
+#ifndef RNBD_SRV_H
+#define RNBD_SRV_H
+
+#include <linux/types.h>
+#include <linux/idr.h>
+#include <linux/kref.h>
+
+#include "rtrs.h"
+#include "rnbd-proto.h"
+#include "rnbd-log.h"
+
+struct rnbd_srv_session {
+	/* Entry inside global sess_list */
+	struct list_head        list;
+	struct rtrs_srv	*rtrs;
+	char			sessname[NAME_MAX];
+	int			queue_depth;
+	struct bio_set		sess_bio_set;
+
+	rwlock_t                index_lock ____cacheline_aligned;
+	struct idr              index_idr;
+	/* List of struct rnbd_srv_sess_dev */
+	struct list_head        sess_dev_list;
+	struct mutex		lock;
+	u8			ver;
+};
+
+struct rnbd_srv_dev {
+	/* Entry inside global dev_list */
+	struct list_head                list;
+	struct kobject                  dev_kobj;
+	struct kobject                  dev_sessions_kobj;
+	struct kref                     kref;
+	char				id[NAME_MAX];
+	/* List of rnbd_srv_sess_dev structs */
+	struct list_head		sess_dev_list;
+	struct mutex			lock;
+	int				open_write_cnt;
+};
+
+/* Structure which binds N devices and N sessions */
+struct rnbd_srv_sess_dev {
+	/* Entry inside rnbd_srv_dev struct */
+	struct list_head		dev_list;
+	/* Entry inside rnbd_srv_session struct */
+	struct list_head		sess_list;
+	struct rnbd_dev		*rnbd_dev;
+	struct rnbd_srv_session        *sess;
+	struct rnbd_srv_dev		*dev;
+	struct kobject                  kobj;
+	struct completion		*sysfs_release_compl;
+	u32                             device_id;
+	fmode_t                         open_flags;
+	struct kref			kref;
+	struct completion               *destroy_comp;
+	char				pathname[NAME_MAX];
+	enum rnbd_access_mode		access_mode;
+};
+
+/* rnbd-srv-sysfs.c */
+
+int rnbd_srv_create_dev_sysfs(struct rnbd_srv_dev *dev,
+			       struct block_device *bdev,
+			       const char *dir_name);
+void rnbd_srv_destroy_dev_sysfs(struct rnbd_srv_dev *dev);
+int rnbd_srv_create_dev_session_sysfs(struct rnbd_srv_sess_dev *sess_dev);
+void rnbd_srv_destroy_dev_session_sysfs(struct rnbd_srv_sess_dev *sess_dev);
+int rnbd_srv_create_sysfs_files(void);
+void rnbd_srv_destroy_sysfs_files(void);
+
+#endif /* RNBD_SRV_H */
-- 
2.17.1


  parent reply index

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-16 12:58 [PATCH v7 00/25] RTRS (former IBTRS) RDMA Transport Library and RNBD (former IBNBD) RDMA Network Block Device Jack Wang
2020-01-16 12:58 ` [PATCH v7 01/25] sysfs: export sysfs_remove_file_self() Jack Wang
2020-01-16 12:58 ` [PATCH v7 02/25] RDMA/rtrs: public interface header to establish RDMA connections Jack Wang
2020-01-16 12:58 ` [PATCH v7 03/25] RDMA/rtrs: private headers with rtrs protocol structs and helpers Jack Wang
2020-01-16 12:58 ` [PATCH v7 04/25] RDMA/rtrs: core: lib functions shared between client and server modules Jack Wang
2020-01-19 14:48   ` Leon Romanovsky
2020-01-20 11:32     ` Jinpu Wang
2020-01-20 13:30       ` Leon Romanovsky
2020-01-20 14:08         ` Jinpu Wang
2020-01-16 12:58 ` [PATCH v7 05/25] RDMA/rtrs: client: private header with client structs and functions Jack Wang
2020-01-16 12:58 ` [PATCH v7 06/25] RDMA/rtrs: client: main functionality Jack Wang
2020-01-16 14:53   ` Leon Romanovsky
2020-01-16 15:43     ` Jinpu Wang
2020-01-16 15:53       ` Jason Gunthorpe
2020-01-16 16:48         ` Jinpu Wang
2020-01-16 15:58       ` Leon Romanovsky
2020-01-16 16:24         ` Jinpu Wang
2020-01-18 10:12           ` Leon Romanovsky
2020-01-20 11:24             ` Jinpu Wang
2020-01-16 12:58 ` [PATCH v7 07/25] RDMA/rtrs: client: statistics functions Jack Wang
2020-01-16 12:58 ` [PATCH v7 08/25] RDMA/rtrs: client: sysfs interface functions Jack Wang
2020-01-16 12:58 ` [PATCH v7 09/25] RDMA/rtrs: server: private header with server structs and functions Jack Wang
2020-01-16 12:59 ` [PATCH v7 10/25] RDMA/rtrs: server: main functionality Jack Wang
2020-01-16 12:59 ` [PATCH v7 11/25] RDMA/rtrs: server: statistics functions Jack Wang
2020-01-16 12:59 ` [PATCH v7 12/25] RDMA/rtrs: server: sysfs interface functions Jack Wang
2020-01-16 12:59 ` [PATCH v7 13/25] RDMA/rtrs: include client and server modules into kernel compilation Jack Wang
2020-01-16 12:59 ` [PATCH v7 14/25] RDMA/rtrs: a bit of documentation Jack Wang
2020-01-16 12:59 ` [PATCH v7 15/25] block/rnbd: private headers with rnbd protocol structs and helpers Jack Wang
2020-01-16 12:59 ` [PATCH v7 16/25] block/rnbd: client: private header with client structs and functions Jack Wang
2020-01-16 12:59 ` [PATCH v7 17/25] block/rnbd: client: main functionality Jack Wang
2020-01-20 13:48   ` Leon Romanovsky
2020-01-20 17:30     ` Jinpu Wang
2020-01-22 12:31       ` Leon Romanovsky
2020-01-22 12:52         ` Jinpu Wang
2020-01-22 11:22     ` Jinpu Wang
2020-01-22 12:25       ` Leon Romanovsky
2020-01-22 13:12         ` Jinpu Wang
2020-01-22 14:07           ` Leon Romanovsky
2020-01-22 14:18             ` Jinpu Wang
2020-01-16 12:59 ` [PATCH v7 18/25] block/rnbd: client: sysfs interface functions Jack Wang
2020-01-16 12:59 ` Jack Wang [this message]
2020-01-16 12:59 ` [PATCH v7 20/25] block/rnbd: server: main functionality Jack Wang
2020-01-16 12:59 ` [PATCH v7 21/25] block/rnbd: server: functionality for IO submission to file or block dev Jack Wang
2020-01-16 12:59 ` [PATCH v7 22/25] block/rnbd: server: sysfs interface functions Jack Wang
2020-01-16 12:59 ` [PATCH v7 23/25] block/rnbd: include client and server modules into kernel compilation Jack Wang
2020-01-16 14:40   ` Leon Romanovsky
2020-01-16 14:54     ` Jinpu Wang
2020-01-16 15:59       ` Leon Romanovsky
2020-01-16 16:53         ` Jinpu Wang
2020-01-16 12:59 ` [PATCH v7 24/25] block/rnbd: a bit of documentation Jack Wang
2020-01-16 12:59 ` [PATCH v7 25/25] MAINTAINERS: Add maintainers for RNBD/RTRS modules Jack Wang

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