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, jgg@mellanox.com, dledford@redhat.com,
danil.kipnis@cloud.ionos.com, rpenyaev@suse.de,
Roman Pen <roman.penyaev@profitbricks.com>,
Jack Wang <jinpu.wang@cloud.ionos.com>
Subject: [PATCH v4 05/25] ibtrs: client: private header with client structs and functions
Date: Thu, 20 Jun 2019 17:03:17 +0200 [thread overview]
Message-ID: <20190620150337.7847-6-jinpuwang@gmail.com> (raw)
In-Reply-To: <20190620150337.7847-1-jinpuwang@gmail.com>
From: Roman Pen <roman.penyaev@profitbricks.com>
This header describes main structs and functions used by ibtrs-client
module, mainly for managing IBTRS sessions, creating/destroying sysfs
entries, accounting statistics on client side.
Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
---
drivers/infiniband/ulp/ibtrs/ibtrs-clt.h | 308 +++++++++++++++++++++++
1 file changed, 308 insertions(+)
create mode 100644 drivers/infiniband/ulp/ibtrs/ibtrs-clt.h
diff --git a/drivers/infiniband/ulp/ibtrs/ibtrs-clt.h b/drivers/infiniband/ulp/ibtrs/ibtrs-clt.h
new file mode 100644
index 000000000000..f9e65f5eb5ab
--- /dev/null
+++ b/drivers/infiniband/ulp/ibtrs/ibtrs-clt.h
@@ -0,0 +1,308 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * InfiniBand Transport Layer
+ *
+ * Copyright (c) 2014 - 2017 ProfitBricks GmbH. All rights reserved.
+ * Authors: Fabian Holler <mail@fholler.de>
+ * Jack Wang <jinpu.wang@profitbricks.com>
+ * Kleber Souza <kleber.souza@profitbricks.com>
+ * Danil Kipnis <danil.kipnis@profitbricks.com>
+ * Roman Penyaev <roman.penyaev@profitbricks.com>
+ * Milind Dumbare <Milind.dumbare@gmail.com>
+ *
+ * Copyright (c) 2017 - 2018 ProfitBricks GmbH. All rights reserved.
+ * Authors: Danil Kipnis <danil.kipnis@profitbricks.com>
+ * Roman Penyaev <roman.penyaev@profitbricks.com>
+ * Swapnil Ingle <swapnil.ingle@profitbricks.com>
+ *
+ * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
+ * Authors: Roman Penyaev <roman.penyaev@profitbricks.com>
+ * Jack Wang <jinpu.wang@cloud.ionos.com>
+ * Danil Kipnis <danil.kipnis@cloud.ionos.com>
+ */
+
+#ifndef IBTRS_CLT_H
+#define IBTRS_CLT_H
+
+#include <linux/device.h>
+#include "ibtrs-pri.h"
+
+/**
+ * enum ibtrs_clt_state - Client states.
+ */
+enum ibtrs_clt_state {
+ IBTRS_CLT_CONNECTING,
+ IBTRS_CLT_CONNECTING_ERR,
+ IBTRS_CLT_RECONNECTING,
+ IBTRS_CLT_CONNECTED,
+ IBTRS_CLT_CLOSING,
+ IBTRS_CLT_CLOSED,
+ IBTRS_CLT_DEAD,
+};
+
+static inline const char *ibtrs_clt_state_str(enum ibtrs_clt_state state)
+{
+ switch (state) {
+ case IBTRS_CLT_CONNECTING:
+ return "IBTRS_CLT_CONNECTING";
+ case IBTRS_CLT_CONNECTING_ERR:
+ return "IBTRS_CLT_CONNECTING_ERR";
+ case IBTRS_CLT_RECONNECTING:
+ return "IBTRS_CLT_RECONNECTING";
+ case IBTRS_CLT_CONNECTED:
+ return "IBTRS_CLT_CONNECTED";
+ case IBTRS_CLT_CLOSING:
+ return "IBTRS_CLT_CLOSING";
+ case IBTRS_CLT_CLOSED:
+ return "IBTRS_CLT_CLOSED";
+ case IBTRS_CLT_DEAD:
+ return "IBTRS_CLT_DEAD";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+enum ibtrs_mp_policy {
+ MP_POLICY_RR,
+ MP_POLICY_MIN_INFLIGHT,
+};
+
+struct ibtrs_clt_stats_reconnects {
+ int successful_cnt;
+ int fail_cnt;
+};
+
+struct ibtrs_clt_stats_wc_comp {
+ u32 cnt;
+ u64 total_cnt;
+};
+
+struct ibtrs_clt_stats_cpu_migr {
+ atomic_t from;
+ int to;
+};
+
+struct ibtrs_clt_stats_rdma {
+ struct {
+ u64 cnt;
+ u64 size_total;
+ } dir[2];
+
+ u64 failover_cnt;
+};
+
+struct ibtrs_clt_stats_rdma_lat {
+ u64 read;
+ u64 write;
+};
+
+#define MIN_LOG_SG 2
+#define MAX_LOG_SG 5
+#define MAX_LIN_SG BIT(MIN_LOG_SG)
+#define SG_DISTR_SZ (MAX_LOG_SG - MIN_LOG_SG + MAX_LIN_SG + 2)
+
+#define MAX_LOG_LAT 16
+#define MIN_LOG_LAT 0
+#define LOG_LAT_SZ (MAX_LOG_LAT - MIN_LOG_LAT + 2)
+
+struct ibtrs_clt_stats_pcpu {
+ struct ibtrs_clt_stats_cpu_migr cpu_migr;
+ struct ibtrs_clt_stats_rdma rdma;
+ u64 sg_list_total;
+ u64 sg_list_distr[SG_DISTR_SZ];
+ struct ibtrs_clt_stats_rdma_lat rdma_lat_distr[LOG_LAT_SZ];
+ struct ibtrs_clt_stats_rdma_lat rdma_lat_max;
+ struct ibtrs_clt_stats_wc_comp wc_comp;
+};
+
+struct ibtrs_clt_stats {
+ bool enable_rdma_lat;
+ struct ibtrs_clt_stats_pcpu __percpu *pcpu_stats;
+ struct ibtrs_clt_stats_reconnects reconnects;
+ atomic_t inflight;
+};
+
+struct ibtrs_clt_con {
+ struct ibtrs_con c;
+ u32 cpu;
+ atomic_t io_cnt;
+ int cm_err;
+};
+
+/**
+ * ibtrs_tag - tags the memory allocation for future RDMA operation
+ */
+struct ibtrs_tag {
+ enum ibtrs_clt_con_type con_type;
+ u32 cpu_id;
+ u32 mem_id;
+ u32 mem_off;
+};
+
+struct ibtrs_clt_io_req {
+ struct list_head list;
+ struct ibtrs_iu *iu;
+ struct scatterlist *sglist; /* list holding user data */
+ u32 sg_cnt;
+ u32 sg_size;
+ u32 data_len;
+ u32 usr_len;
+ void *priv;
+ bool in_use;
+ struct ibtrs_clt_con *con;
+ struct ibtrs_sg_desc *desc;
+ struct ib_sge *sge;
+ struct ibtrs_tag *tag;
+ enum dma_data_direction dir;
+ ibtrs_conf_fn *conf;
+ unsigned long start_jiffies;
+
+ struct ib_mr *mr;
+ struct ib_cqe inv_cqe;
+ struct completion inv_comp;
+ int inv_errno;
+ bool need_inv_comp;
+ bool need_inv;
+};
+
+struct ibtrs_rbuf {
+ u64 addr;
+ u32 rkey;
+};
+
+struct ibtrs_clt_sess {
+ struct ibtrs_sess s;
+ struct ibtrs_clt *clt;
+ wait_queue_head_t state_wq;
+ enum ibtrs_clt_state state;
+ atomic_t connected_cnt;
+ struct mutex init_mutex;
+ struct ibtrs_clt_io_req *reqs;
+ struct delayed_work reconnect_dwork;
+ struct work_struct close_work;
+ u32 reconnect_attempts;
+ bool established;
+ struct ibtrs_rbuf *rbufs;
+ size_t max_io_size;
+ u32 max_hdr_size;
+ u32 chunk_size;
+ size_t queue_depth;
+ u32 max_pages_per_mr;
+ int max_send_sge;
+ struct kobject kobj;
+ struct kobject kobj_stats;
+ struct ibtrs_clt_stats stats;
+ /* cache hca_port and hca_name to display in sysfs */
+ u8 hca_port;
+ char hca_name[IB_DEVICE_NAME_MAX];
+ struct list_head __percpu
+ *mp_skip_entry;
+};
+
+struct ibtrs_clt {
+ struct list_head /* __rcu */ paths_list;
+ size_t paths_num;
+ struct ibtrs_clt_sess
+ __rcu * __percpu *pcpu_path;
+
+ bool opened;
+ uuid_t paths_uuid;
+ int paths_up;
+ struct mutex paths_mutex;
+ struct mutex paths_ev_mutex;
+ char sessname[NAME_MAX];
+ short port;
+ u32 max_reconnect_attempts;
+ u32 reconnect_delay_sec;
+ u32 max_segments;
+ void *tags;
+ unsigned long *tags_map;
+ size_t queue_depth;
+ size_t max_io_size;
+ wait_queue_head_t tags_wait;
+ size_t pdu_sz;
+ void *priv;
+ link_clt_ev_fn *link_ev;
+ struct device dev;
+ struct kobject kobj_paths;
+ enum ibtrs_mp_policy mp_policy;
+};
+
+static inline struct ibtrs_clt_con *to_clt_con(struct ibtrs_con *c)
+{
+ return container_of(c, struct ibtrs_clt_con, c);
+}
+
+static inline struct ibtrs_clt_sess *to_clt_sess(struct ibtrs_sess *s)
+{
+ return container_of(s, struct ibtrs_clt_sess, s);
+}
+
+/* See ibtrs-log.h */
+#define TYPES_TO_SESSNAME(obj) \
+ LIST(CASE(obj, struct ibtrs_clt_sess *, s.sessname), \
+ CASE(obj, struct ibtrs_clt *, sessname))
+
+#define TAG_SIZE(clt) (sizeof(struct ibtrs_tag) + (clt)->pdu_sz)
+#define GET_TAG(clt, idx) ((clt)->tags + TAG_SIZE(clt) * idx)
+
+int ibtrs_clt_reconnect_from_sysfs(struct ibtrs_clt_sess *sess);
+int ibtrs_clt_disconnect_from_sysfs(struct ibtrs_clt_sess *sess);
+int ibtrs_clt_create_path_from_sysfs(struct ibtrs_clt *clt,
+ struct ibtrs_addr *addr);
+int ibtrs_clt_remove_path_from_sysfs(struct ibtrs_clt_sess *sess,
+ const struct attribute *sysfs_self);
+
+void ibtrs_clt_set_max_reconnect_attempts(struct ibtrs_clt *clt, int value);
+int ibtrs_clt_get_max_reconnect_attempts(const struct ibtrs_clt *clt);
+
+/* ibtrs-clt-stats.c */
+
+int ibtrs_clt_init_stats(struct ibtrs_clt_stats *stats);
+void ibtrs_clt_free_stats(struct ibtrs_clt_stats *stats);
+
+void ibtrs_clt_decrease_inflight(struct ibtrs_clt_stats *s);
+void ibtrs_clt_inc_failover_cnt(struct ibtrs_clt_stats *s);
+
+void ibtrs_clt_update_rdma_lat(struct ibtrs_clt_stats *s, bool read,
+ unsigned long ms);
+void ibtrs_clt_update_wc_stats(struct ibtrs_clt_con *con);
+void ibtrs_clt_update_all_stats(struct ibtrs_clt_io_req *req, int dir);
+
+int ibtrs_clt_reset_sg_list_distr_stats(struct ibtrs_clt_stats *stats,
+ bool enable);
+int ibtrs_clt_stats_sg_list_distr_to_str(struct ibtrs_clt_stats *stats,
+ char *buf, size_t len);
+int ibtrs_clt_reset_rdma_lat_distr_stats(struct ibtrs_clt_stats *stats,
+ bool enable);
+ssize_t ibtrs_clt_stats_rdma_lat_distr_to_str(struct ibtrs_clt_stats *stats,
+ char *page, size_t len);
+int ibtrs_clt_reset_cpu_migr_stats(struct ibtrs_clt_stats *stats, bool enable);
+int ibtrs_clt_stats_migration_cnt_to_str(struct ibtrs_clt_stats *stats,
+ char *buf, size_t len);
+int ibtrs_clt_reset_reconnects_stat(struct ibtrs_clt_stats *stats, bool enable);
+int ibtrs_clt_stats_reconnects_to_str(struct ibtrs_clt_stats *stats, char *buf,
+ size_t len);
+int ibtrs_clt_reset_wc_comp_stats(struct ibtrs_clt_stats *stats, bool enable);
+int ibtrs_clt_stats_wc_completion_to_str(struct ibtrs_clt_stats *stats,
+ char *buf, size_t len);
+int ibtrs_clt_reset_rdma_stats(struct ibtrs_clt_stats *stats, bool enable);
+ssize_t ibtrs_clt_stats_rdma_to_str(struct ibtrs_clt_stats *stats,
+ char *page, size_t len);
+bool ibtrs_clt_sess_is_connected(const struct ibtrs_clt_sess *sess);
+int ibtrs_clt_reset_all_stats(struct ibtrs_clt_stats *stats, bool enable);
+ssize_t ibtrs_clt_reset_all_help(struct ibtrs_clt_stats *stats,
+ char *page, size_t len);
+
+/* ibtrs-clt-sysfs.c */
+
+int ibtrs_clt_create_sysfs_root_folders(struct ibtrs_clt *clt);
+int ibtrs_clt_create_sysfs_root_files(struct ibtrs_clt *clt);
+void ibtrs_clt_destroy_sysfs_root_folders(struct ibtrs_clt *clt);
+void ibtrs_clt_destroy_sysfs_root_files(struct ibtrs_clt *clt);
+
+int ibtrs_clt_create_sess_files(struct ibtrs_clt_sess *sess);
+void ibtrs_clt_destroy_sess_files(struct ibtrs_clt_sess *sess,
+ const struct attribute *sysfs_self);
+
+#endif /* IBTRS_CLT_H */
--
2.17.1
next prev parent reply other threads:[~2019-06-20 15:03 UTC|newest]
Thread overview: 148+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-20 15:03 [PATCH v4 00/25] InfiniBand Transport (IBTRS) and Network Block Device (IBNBD) Jack Wang
2019-06-20 15:03 ` [PATCH v4 01/25] sysfs: export sysfs_remove_file_self() Jack Wang
2019-09-23 17:21 ` Bart Van Assche
2019-09-25 9:30 ` Danil Kipnis
2019-06-20 15:03 ` [PATCH v4 02/25] ibtrs: public interface header to establish RDMA connections Jack Wang
2019-09-23 17:44 ` Bart Van Assche
2019-09-25 10:20 ` Danil Kipnis
2019-09-25 15:38 ` Bart Van Assche
2019-06-20 15:03 ` [PATCH v4 03/25] ibtrs: private headers with IBTRS protocol structs and helpers Jack Wang
2019-09-23 22:50 ` Bart Van Assche
2019-09-25 21:45 ` Danil Kipnis
2019-09-25 21:57 ` Bart Van Assche
2019-09-27 8:56 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 04/25] ibtrs: core: lib functions shared between client and server modules Jack Wang
2019-09-23 23:03 ` Bart Van Assche
2019-09-27 10:13 ` Jinpu Wang
2019-06-20 15:03 ` Jack Wang [this message]
2019-09-23 23:05 ` [PATCH v4 05/25] ibtrs: client: private header with client structs and functions Bart Van Assche
2019-09-27 10:18 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 06/25] ibtrs: client: main functionality Jack Wang
2019-09-23 21:51 ` Bart Van Assche
2019-09-25 17:36 ` Danil Kipnis
2019-09-25 18:55 ` Bart Van Assche
2019-09-25 20:50 ` Danil Kipnis
2019-09-25 21:08 ` Bart Van Assche
2019-09-25 21:16 ` Bart Van Assche
2019-09-25 22:53 ` Danil Kipnis
2019-09-25 23:21 ` Bart Van Assche
2019-09-26 9:16 ` Danil Kipnis
2019-06-20 15:03 ` [PATCH v4 07/25] ibtrs: client: statistics functions Jack Wang
2019-09-23 23:15 ` Bart Van Assche
2019-09-27 12:00 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 08/25] ibtrs: client: sysfs interface functions Jack Wang
2019-06-20 15:03 ` [PATCH v4 09/25] ibtrs: server: private header with server structs and functions Jack Wang
2019-09-23 23:21 ` Bart Van Assche
2019-09-27 12:04 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 10/25] ibtrs: server: main functionality Jack Wang
2019-09-23 23:49 ` Bart Van Assche
2019-09-27 15:03 ` Jinpu Wang
2019-09-27 15:11 ` Bart Van Assche
2019-09-27 15:19 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 11/25] ibtrs: server: statistics functions Jack Wang
2019-09-23 23:56 ` Bart Van Assche
2019-10-02 15:15 ` Jinpu Wang
2019-10-02 15:42 ` Leon Romanovsky
2019-10-02 15:45 ` Jinpu Wang
2019-10-02 16:00 ` Leon Romanovsky
2019-06-20 15:03 ` [PATCH v4 12/25] ibtrs: server: sysfs interface functions Jack Wang
2019-09-24 0:00 ` Bart Van Assche
2019-10-02 15:11 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 13/25] ibtrs: include client and server modules into kernel compilation Jack Wang
2019-06-20 15:03 ` [PATCH v4 14/25] ibtrs: a bit of documentation Jack Wang
2019-06-20 15:03 ` [PATCH v4 15/25] ibnbd: private headers with IBNBD protocol structs and helpers Jack Wang
2019-09-13 22:10 ` Bart Van Assche
2019-09-15 14:30 ` Jinpu Wang
2019-09-16 5:27 ` Leon Romanovsky
2019-09-16 13:45 ` Bart Van Assche
2019-09-17 15:41 ` Leon Romanovsky
2019-09-17 15:52 ` Jinpu Wang
2019-09-16 7:08 ` Danil Kipnis
2019-09-16 14:57 ` Jinpu Wang
2019-09-16 17:25 ` Bart Van Assche
2019-09-17 12:27 ` Jinpu Wang
2019-09-16 15:39 ` Jinpu Wang
2019-09-18 15:26 ` Bart Van Assche
2019-09-18 16:11 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 16/25] ibnbd: client: private header with client structs and functions Jack Wang
2019-09-13 22:25 ` Bart Van Assche
2019-09-17 16:36 ` Jinpu Wang
2019-09-25 23:43 ` Danil Kipnis
2019-09-26 10:00 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 17/25] ibnbd: client: main functionality Jack Wang
2019-09-13 23:46 ` Bart Van Assche
2019-09-16 14:17 ` Danil Kipnis
2019-09-16 16:46 ` Bart Van Assche
2019-09-17 11:39 ` Danil Kipnis
2019-09-18 7:14 ` Danil Kipnis
2019-09-18 15:47 ` Bart Van Assche
2019-09-20 8:29 ` Danil Kipnis
2019-09-25 22:26 ` Danil Kipnis
2019-09-26 9:55 ` Roman Penyaev
2019-09-26 15:01 ` Bart Van Assche
2019-09-27 8:52 ` Roman Penyaev
2019-09-27 9:32 ` Danil Kipnis
2019-09-27 12:18 ` Danil Kipnis
2019-09-27 16:37 ` Bart Van Assche
2019-09-27 16:50 ` Roman Penyaev
2019-09-27 17:16 ` Bart Van Assche
2019-09-17 13:09 ` Jinpu Wang
2019-09-17 16:46 ` Bart Van Assche
2019-09-18 12:02 ` Jinpu Wang
2019-09-18 16:05 ` Jinpu Wang
2019-09-14 0:00 ` Bart Van Assche
2019-06-20 15:03 ` [PATCH v4 18/25] ibnbd: client: sysfs interface functions Jack Wang
2019-09-18 16:28 ` Bart Van Assche
2019-09-19 15:55 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 19/25] ibnbd: server: private header with server structs and functions Jack Wang
2019-06-20 15:03 ` [PATCH v4 20/25] ibnbd: server: main functionality Jack Wang
2019-09-18 17:41 ` Bart Van Assche
2019-09-20 7:36 ` Danil Kipnis
2019-09-20 15:42 ` Bart Van Assche
2019-09-23 15:19 ` Danil Kipnis
2019-06-20 15:03 ` [PATCH v4 21/25] ibnbd: server: functionality for IO submission to file or block dev Jack Wang
2019-09-18 21:46 ` Bart Van Assche
2019-09-26 14:04 ` Jinpu Wang
2019-09-26 15:11 ` Bart Van Assche
2019-09-26 15:25 ` Danil Kipnis
2019-09-26 15:29 ` Bart Van Assche
2019-09-26 15:38 ` Danil Kipnis
2019-09-26 15:42 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 22/25] ibnbd: server: sysfs interface functions Jack Wang
2019-06-20 15:03 ` [PATCH v4 23/25] ibnbd: include client and server modules into kernel compilation Jack Wang
2019-06-20 15:03 ` [PATCH v4 24/25] ibnbd: a bit of documentation Jack Wang
2019-09-13 23:58 ` Bart Van Assche
2019-09-18 12:22 ` Jinpu Wang
2019-06-20 15:03 ` [PATCH v4 25/25] MAINTAINERS: Add maintainer for IBNBD/IBTRS modules Jack Wang
2019-07-09 15:10 ` Leon Romanovsky
2019-07-09 15:18 ` Jinpu Wang
2019-07-09 15:51 ` Leon Romanovsky
2019-09-13 23:56 ` Bart Van Assche
2019-09-19 10:30 ` Jinpu Wang
2019-07-09 9:55 ` [PATCH v4 00/25] InfiniBand Transport (IBTRS) and Network Block Device (IBNBD) Danil Kipnis
2019-07-09 11:00 ` Leon Romanovsky
2019-07-09 11:17 ` Greg KH
2019-07-09 11:57 ` Jinpu Wang
2019-07-09 13:32 ` Leon Romanovsky
2019-07-09 15:39 ` Bart Van Assche
2019-07-09 11:37 ` Jinpu Wang
2019-07-09 12:06 ` Jason Gunthorpe
2019-07-09 13:15 ` Jinpu Wang
2019-07-09 13:19 ` Jason Gunthorpe
2019-07-09 14:17 ` Jinpu Wang
2019-07-09 21:27 ` Sagi Grimberg
2019-07-19 13:12 ` Danil Kipnis
2019-07-10 14:55 ` Danil Kipnis
2019-07-09 12:04 ` Jason Gunthorpe
2019-07-09 19:45 ` Sagi Grimberg
2019-07-10 13:55 ` Jason Gunthorpe
2019-07-10 16:25 ` Sagi Grimberg
2019-07-10 17:25 ` Jason Gunthorpe
2019-07-10 19:11 ` Sagi Grimberg
2019-07-11 7:27 ` Danil Kipnis
2019-07-11 8:54 ` Danil Kipnis
2019-07-12 0:22 ` Sagi Grimberg
2019-07-12 7:57 ` Jinpu Wang
2019-07-12 19:40 ` Sagi Grimberg
2019-07-15 11:21 ` Jinpu Wang
2019-07-12 10:58 ` Danil Kipnis
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