144065f30c
When we enabled the ERL1 configuation, for the DATAIN task release process, we will queue the task to the SNACK list firstly, and then remove the list when got ACK from initiator, but for this part of logic, the reference count of primary task was not released correctly. Change-Id: Ic5959cf644c74f676be0b84c5650292dc426b2d8 Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
182 lines
6.0 KiB
C
182 lines
6.0 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_ISCSI_CONN_H
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#define SPDK_ISCSI_CONN_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "iscsi/iscsi.h"
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#include "spdk/queue.h"
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#include "spdk/event.h"
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/*
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* MAX_CONNECTION_PARAMS: The numbers of the params in conn_param_table
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* MAX_SESSION_PARAMS: The numbers of the params in sess_param_table
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*/
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#define MAX_CONNECTION_PARAMS 14
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#define MAX_SESSION_PARAMS 19
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#define MAX_ADDRBUF 64
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#define MAX_INITIATOR_ADDR (MAX_ADDRBUF)
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#define MAX_TARGET_ADDR (MAX_ADDRBUF)
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#define OWNER_ISCSI_CONN 0x1
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#define OBJECT_ISCSI_PDU 0x1
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#define TRACE_GROUP_ISCSI 0x1
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#define TRACE_READ_FROM_SOCKET_DONE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x0)
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#define TRACE_FLUSH_WRITEBUF_START SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x1)
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#define TRACE_FLUSH_WRITEBUF_DONE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x2)
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#define TRACE_READ_PDU SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x3)
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#define TRACE_ISCSI_TASK_DONE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x4)
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#define TRACE_ISCSI_TASK_QUEUE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x5)
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#define TRACE_ISCSI_CONN_ACTIVE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x6)
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#define TRACE_ISCSI_CONN_IDLE SPDK_TPOINT_ID(TRACE_GROUP_ISCSI, 0x7)
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struct spdk_iscsi_conn {
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int id;
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int is_valid;
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int is_idle;
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/*
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* All fields below this point are reinitialized each time the
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* connection object is allocated. Make sure to update the
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* SPDK_ISCSI_CONNECTION_MEMSET() macro if changing which fields
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* are initialized when allocated.
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*/
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struct spdk_iscsi_portal *portal;
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uint32_t lcore;
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int sock;
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struct spdk_iscsi_sess *sess;
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enum iscsi_connection_state state;
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int login_phase;
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uint64_t last_flush;
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uint64_t last_fill;
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uint64_t last_nopin;
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/* Timer used to destroy connection after logout if initiator does
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* not close the connection.
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*/
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struct spdk_poller *logout_timer;
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/* Timer used to wait for connection to close
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*/
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struct spdk_poller *shutdown_timer;
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struct spdk_iscsi_pdu *pdu_in_progress;
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TAILQ_HEAD(, spdk_iscsi_pdu) write_pdu_list;
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TAILQ_HEAD(, spdk_iscsi_pdu) snack_pdu_list;
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int pending_r2t;
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struct spdk_iscsi_task *outstanding_r2t_tasks[DEFAULT_MAXR2T];
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uint16_t cid;
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/* IP address */
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char initiator_addr[MAX_INITIATOR_ADDR];
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char target_addr[MAX_TARGET_ADDR];
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/* Initiator/Target port binds */
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char initiator_name[MAX_INITIATOR_NAME];
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struct spdk_scsi_port *initiator_port;
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char target_short_name[MAX_TARGET_NAME];
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struct spdk_scsi_port *target_port;
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struct spdk_iscsi_tgt_node *target;
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struct spdk_scsi_dev *dev;
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/* for fast access */
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int header_digest;
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int data_digest;
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int full_feature;
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struct iscsi_param *params;
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bool sess_param_state_negotiated[MAX_SESSION_PARAMS];
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bool conn_param_state_negotiated[MAX_CONNECTION_PARAMS];
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struct iscsi_chap_auth auth;
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int authenticated;
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int req_auth;
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int req_mutual;
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uint64_t last_activity_tsc;
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uint32_t pending_task_cnt;
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uint32_t data_out_cnt;
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uint32_t data_in_cnt;
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bool pending_activate_event;
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int timeout;
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uint64_t nopininterval;
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bool nop_outstanding;
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/*
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* This is the maximum data segment length that iscsi target can send
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* to the initiator on this connection. Not to be confused with the
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* maximum data segment length that initiators can send to iscsi target, which
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* is statically defined as SPDK_ISCSI_MAX_RECV_DATA_SEGMENT_LENGTH.
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*/
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int MaxRecvDataSegmentLength;
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uint32_t StatSN;
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uint32_t exp_statsn;
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uint32_t ttt; /* target transfer tag*/
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char *partial_text_parameter;
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STAILQ_ENTRY(spdk_iscsi_conn) link;
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struct spdk_poller *poller;
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TAILQ_HEAD(queued_r2t_tasks, spdk_iscsi_task) queued_r2t_tasks;
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TAILQ_HEAD(active_r2t_tasks, spdk_iscsi_task) active_r2t_tasks;
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TAILQ_HEAD(queued_datain_tasks, spdk_iscsi_task) queued_datain_tasks;
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};
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int spdk_initialize_iscsi_conns(void);
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void spdk_shutdown_iscsi_conns(void);
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int spdk_iscsi_conn_construct(struct spdk_iscsi_portal *portal, int sock);
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void spdk_iscsi_conn_destruct(struct spdk_iscsi_conn *conn);
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void spdk_iscsi_conn_logout(struct spdk_iscsi_conn *conn);
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int spdk_iscsi_drop_conns(struct spdk_iscsi_conn *conn,
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const char *conn_match, int drop_all);
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void spdk_iscsi_conn_set_min_per_core(int count);
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void spdk_iscsi_set_min_conn_idle_interval(int interval_in_us);
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int spdk_iscsi_conn_read_data(struct spdk_iscsi_conn *conn, int len,
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void *buf);
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void spdk_iscsi_conn_free_pdu(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu);
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#endif /* SPDK_ISCSI_CONN_H */
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