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gerrit-public.fairphone.software / kernel / msm-5.4 / ad3793fc3945173f64d82d05d3ecde41f6c0435c / . / drivers / target / iscsi / iscsi_target_util.h
blob: d66dfc2126247c814ee554c8632f2fa7f126bfd3 [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +0100[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]2#ifndef ISCSI_TARGET_UTIL_H
3#define ISCSI_TARGET_UTIL_H
4
Bart Van Assche8dcf07b2016-11-14 15:47:14 -0800[diff] [blame]5#include <linux/types.h>
6#include <scsi/iscsi_proto.h> /* itt_t */
7
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]8#define MARKER_SIZE 8
9
Bart Van Assche8dcf07b2016-11-14 15:47:14 -0800[diff] [blame]10struct iscsi_cmd;
11struct iscsi_conn;
12struct iscsi_conn_recovery;
13struct iscsi_session;
14
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]15extern int iscsit_add_r2t_to_list(struct iscsi_cmd *, u32, u32, int, u32);
16extern struct iscsi_r2t *iscsit_get_r2t_for_eos(struct iscsi_cmd *, u32, u32);
17extern struct iscsi_r2t *iscsit_get_r2t_from_list(struct iscsi_cmd *);
18extern void iscsit_free_r2t(struct iscsi_r2t *, struct iscsi_cmd *);
19extern void iscsit_free_r2ts_from_list(struct iscsi_cmd *);
Nicholas Bellingercdb72662013-03-06 22:09:17 -0800[diff] [blame]20extern struct iscsi_cmd *iscsit_alloc_cmd(struct iscsi_conn *, gfp_t);
Nicholas Bellinger676687c2014-01-20 03:36:44 +0000[diff] [blame]21extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, int);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]22extern struct iscsi_seq *iscsit_get_seq_holder_for_datain(struct iscsi_cmd *, u32);
23extern struct iscsi_seq *iscsit_get_seq_holder_for_r2t(struct iscsi_cmd *);
24extern struct iscsi_r2t *iscsit_get_holder_for_r2tsn(struct iscsi_cmd *, u32);
Nicholas Bellinger561bf152013-07-03 03:58:58 -0700[diff] [blame]25extern int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
26 unsigned char * ,__be32 cmdsn);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]27extern int iscsit_check_unsolicited_dataout(struct iscsi_cmd *, unsigned char *);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]28extern struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *,
Christoph Hellwig66c7db62012-09-26 08:00:39 -0400[diff] [blame]29 itt_t, u32);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]30extern struct iscsi_cmd *iscsit_find_cmd_from_ttt(struct iscsi_conn *, u32);
31extern int iscsit_find_cmd_for_recovery(struct iscsi_session *, struct iscsi_cmd **,
Christoph Hellwig66c7db62012-09-26 08:00:39 -0400[diff] [blame]32 struct iscsi_conn_recovery **, itt_t);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]33extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
34extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *);
Nicholas Bellingera4467012016-10-30 17:30:08 -0700[diff] [blame]35extern int iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]36extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *);
37extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_conn *);
Roland Dreierd5627ac2012-10-31 09:16:46 -0700[diff] [blame]38extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]39extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *);
40extern void iscsit_release_cmd(struct iscsi_cmd *);
Bart Van Assche4412a672017-05-23 16:48:43 -0700[diff] [blame]41extern void __iscsit_free_cmd(struct iscsi_cmd *, bool);
Nicholas Bellingeraafc9d12013-05-31 00:49:41 -0700[diff] [blame]42extern void iscsit_free_cmd(struct iscsi_cmd *, bool);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]43extern int iscsit_check_session_usage_count(struct iscsi_session *);
44extern void iscsit_dec_session_usage_count(struct iscsi_session *);
45extern void iscsit_inc_session_usage_count(struct iscsi_session *);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]46extern struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *, u16);
47extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *, u16);
48extern void iscsit_check_conn_usage_count(struct iscsi_conn *);
49extern void iscsit_dec_conn_usage_count(struct iscsi_conn *);
50extern void iscsit_inc_conn_usage_count(struct iscsi_conn *);
Kees Cookf7c95642017-10-22 14:58:45 -0700[diff] [blame]51extern void iscsit_handle_nopin_response_timeout(struct timer_list *t);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]52extern void iscsit_mod_nopin_response_timer(struct iscsi_conn *);
53extern void iscsit_start_nopin_response_timer(struct iscsi_conn *);
54extern void iscsit_stop_nopin_response_timer(struct iscsi_conn *);
Kees Cookf7c95642017-10-22 14:58:45 -0700[diff] [blame]55extern void iscsit_handle_nopin_timeout(struct timer_list *t);
Nicholas Bellingere48354c2011-07-23 06:43:04 +0000[diff] [blame]56extern void __iscsit_start_nopin_timer(struct iscsi_conn *);
57extern void iscsit_start_nopin_timer(struct iscsi_conn *);
58extern void iscsit_stop_nopin_timer(struct iscsi_conn *);
59extern int iscsit_send_tx_data(struct iscsi_cmd *, struct iscsi_conn *, int);
60extern int iscsit_fe_sendpage_sg(struct iscsi_cmd *, struct iscsi_conn *);
61extern int iscsit_tx_login_rsp(struct iscsi_conn *, u8, u8);
62extern void iscsit_print_session_params(struct iscsi_session *);
63extern int iscsit_print_dev_to_proc(char *, char **, off_t, int);
64extern int iscsit_print_sessions_to_proc(char *, char **, off_t, int);
65extern int iscsit_print_tpg_to_proc(char *, char **, off_t, int);
66extern int rx_data(struct iscsi_conn *, struct kvec *, int, int);
67extern int tx_data(struct iscsi_conn *, struct kvec *, int, int);
68extern void iscsit_collect_login_stats(struct iscsi_conn *, u8, u8);
69extern struct iscsi_tiqn *iscsit_snmp_get_tiqn(struct iscsi_conn *);
70
71#endif /*** ISCSI_TARGET_UTIL_H ***/