e585afbea3
Change-Id: Idfd22836e1934ee797344907831f3312c051380f Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-on: https://review.gerrithub.io/435432 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
193 lines
6.5 KiB
C
193 lines
6.5 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
|
|
* Copyright (c) Intel Corporation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef SPDK_ISCSI_CONN_H
|
|
#define SPDK_ISCSI_CONN_H
|
|
|
|
#include "spdk/stdinc.h"
|
|
|
|
#include "iscsi/iscsi.h"
|
|
#include "spdk/queue.h"
|
|
#include "spdk/cpuset.h"
|
|
#include "spdk/scsi.h"
|
|
|
|
/*
|
|
* MAX_CONNECTION_PARAMS: The numbers of the params in conn_param_table
|
|
* MAX_SESSION_PARAMS: The numbers of the params in sess_param_table
|
|
*/
|
|
#define MAX_CONNECTION_PARAMS 14
|
|
#define MAX_SESSION_PARAMS 19
|
|
|
|
#define MAX_ADDRBUF 64
|
|
#define MAX_INITIATOR_ADDR (MAX_ADDRBUF)
|
|
#define MAX_TARGET_ADDR (MAX_ADDRBUF)
|
|
|
|
#define OWNER_ISCSI_CONN 0x1
|
|
|
|
#define OBJECT_ISCSI_PDU 0x1
|
|
|
|
#define TRACE_GROUP_ISCSI 0x1
|
|
#define TRACE_ISCSI_READ_FROM_SOCKET_DONE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x0)
|
|
#define TRACE_ISCSI_FLUSH_WRITEBUF_START SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x1)
|
|
#define TRACE_ISCSI_FLUSH_WRITEBUF_DONE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x2)
|
|
#define TRACE_ISCSI_READ_PDU SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x3)
|
|
#define TRACE_ISCSI_TASK_DONE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x4)
|
|
#define TRACE_ISCSI_TASK_QUEUE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x5)
|
|
#define TRACE_ISCSI_TASK_EXECUTED SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x6)
|
|
#define TRACE_ISCSI_PDU_COMPLETED SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x7)
|
|
|
|
struct spdk_poller;
|
|
|
|
struct spdk_iscsi_conn {
|
|
int id;
|
|
int is_valid;
|
|
/*
|
|
* All fields below this point are reinitialized each time the
|
|
* connection object is allocated. Make sure to update the
|
|
* SPDK_ISCSI_CONNECTION_MEMSET() macro if changing which fields
|
|
* are initialized when allocated.
|
|
*/
|
|
struct spdk_iscsi_portal *portal;
|
|
int pg_tag;
|
|
char *portal_host;
|
|
char *portal_port;
|
|
struct spdk_cpuset *portal_cpumask;
|
|
uint32_t lcore;
|
|
struct spdk_sock *sock;
|
|
struct spdk_iscsi_sess *sess;
|
|
|
|
enum iscsi_connection_state state;
|
|
int login_phase;
|
|
|
|
uint64_t last_flush;
|
|
uint64_t last_fill;
|
|
uint64_t last_nopin;
|
|
|
|
/* Timer used to destroy connection after logout if initiator does
|
|
* not close the connection.
|
|
*/
|
|
struct spdk_poller *logout_timer;
|
|
|
|
/* Timer used to wait for connection to close
|
|
*/
|
|
struct spdk_poller *shutdown_timer;
|
|
|
|
struct spdk_iscsi_pdu *pdu_in_progress;
|
|
|
|
TAILQ_HEAD(, spdk_iscsi_pdu) write_pdu_list;
|
|
TAILQ_HEAD(, spdk_iscsi_pdu) snack_pdu_list;
|
|
|
|
int pending_r2t;
|
|
struct spdk_iscsi_task *outstanding_r2t_tasks[DEFAULT_MAXR2T];
|
|
|
|
uint16_t cid;
|
|
|
|
/* IP address */
|
|
char initiator_addr[MAX_INITIATOR_ADDR];
|
|
char target_addr[MAX_TARGET_ADDR];
|
|
|
|
/* Initiator/Target port binds */
|
|
char initiator_name[MAX_INITIATOR_NAME];
|
|
struct spdk_scsi_port *initiator_port;
|
|
char target_short_name[MAX_TARGET_NAME];
|
|
struct spdk_scsi_port *target_port;
|
|
struct spdk_iscsi_tgt_node *target;
|
|
struct spdk_scsi_dev *dev;
|
|
|
|
/* for fast access */
|
|
int header_digest;
|
|
int data_digest;
|
|
int full_feature;
|
|
|
|
struct iscsi_param *params;
|
|
bool sess_param_state_negotiated[MAX_SESSION_PARAMS];
|
|
bool conn_param_state_negotiated[MAX_CONNECTION_PARAMS];
|
|
struct iscsi_chap_auth auth;
|
|
int authenticated;
|
|
int req_auth;
|
|
int req_mutual;
|
|
uint32_t pending_task_cnt;
|
|
uint32_t data_out_cnt;
|
|
uint32_t data_in_cnt;
|
|
|
|
int timeout;
|
|
uint64_t nopininterval;
|
|
bool nop_outstanding;
|
|
|
|
/*
|
|
* This is the maximum data segment length that iscsi target can send
|
|
* to the initiator on this connection. Not to be confused with the
|
|
* maximum data segment length that initiators can send to iscsi target, which
|
|
* is statically defined as SPDK_ISCSI_MAX_RECV_DATA_SEGMENT_LENGTH.
|
|
*/
|
|
int MaxRecvDataSegmentLength;
|
|
|
|
uint32_t StatSN;
|
|
uint32_t exp_statsn;
|
|
uint32_t ttt; /* target transfer tag */
|
|
char *partial_text_parameter;
|
|
|
|
STAILQ_ENTRY(spdk_iscsi_conn) link;
|
|
struct spdk_poller *flush_poller;
|
|
bool is_stopped; /* Set true when connection is stopped for migration */
|
|
TAILQ_HEAD(queued_r2t_tasks, spdk_iscsi_task) queued_r2t_tasks;
|
|
TAILQ_HEAD(active_r2t_tasks, spdk_iscsi_task) active_r2t_tasks;
|
|
TAILQ_HEAD(queued_datain_tasks, spdk_iscsi_task) queued_datain_tasks;
|
|
|
|
struct spdk_scsi_desc *open_lun_descs[SPDK_SCSI_DEV_MAX_LUN];
|
|
};
|
|
|
|
extern struct spdk_iscsi_conn *g_conns_array;
|
|
|
|
int spdk_initialize_iscsi_conns(void);
|
|
void spdk_shutdown_iscsi_conns(void);
|
|
|
|
int spdk_iscsi_conn_construct(struct spdk_iscsi_portal *portal, struct spdk_sock *sock);
|
|
void spdk_iscsi_conn_destruct(struct spdk_iscsi_conn *conn);
|
|
void spdk_iscsi_conn_handle_nop(struct spdk_iscsi_conn *conn);
|
|
void spdk_iscsi_conn_migration(struct spdk_iscsi_conn *conn);
|
|
void spdk_iscsi_conn_logout(struct spdk_iscsi_conn *conn);
|
|
int spdk_iscsi_drop_conns(struct spdk_iscsi_conn *conn,
|
|
const char *conn_match, int drop_all);
|
|
void spdk_iscsi_conn_set_min_per_core(int count);
|
|
int spdk_iscsi_conn_get_min_per_core(void);
|
|
|
|
int spdk_iscsi_conn_read_data(struct spdk_iscsi_conn *conn, int len,
|
|
void *buf);
|
|
void spdk_iscsi_conn_write_pdu(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu);
|
|
|
|
void spdk_iscsi_conn_free_pdu(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu);
|
|
|
|
#endif /* SPDK_ISCSI_CONN_H */
|