131e6abc67
Now that TASK_ABORTED status is not generated for all cases by TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is necessary in order to give fabric drivers a chance to unmap hardware / software resources before the se_cmd descriptor is released via the normal TFO->release_cmd() codepath. This patch adds TFO->aborted_task() in core_tmr_abort_task() in place of the original transport_send_task_abort(), and also updates all fabric drivers to implement this caller. The fabric drivers that include changes to perform cleanup via ->aborted_task() are: - iscsi-target - iser-target - srpt - tcm_qla2xxx The fabric drivers that currently set ->aborted_task() to NOPs are: - loopback - tcm_fc - usb-gadget - sbp-target - vhost-scsi For the latter five, there appears to be no additional cleanup required before invoking TFO->release_cmd() to release the se_cmd descriptor. v2 changes: - Move ->aborted_task() call into transport_cmd_finish_abort (Alex) Cc: Alex Leung <amleung21@yahoo.com> Cc: Mark Rustad <mark.d.rustad@intel.com> Cc: Roland Dreier <roland@kernel.org> Cc: Vu Pham <vu@mellanox.com> Cc: Chris Boot <bootc@bootc.net> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Cc: Saurav Kashyap <saurav.kashyap@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
63 lines
3.8 KiB
C
63 lines
3.8 KiB
C
#ifndef ISCSI_TARGET_UTIL_H
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#define ISCSI_TARGET_UTIL_H
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#define MARKER_SIZE 8
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extern int iscsit_add_r2t_to_list(struct iscsi_cmd *, u32, u32, int, u32);
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extern struct iscsi_r2t *iscsit_get_r2t_for_eos(struct iscsi_cmd *, u32, u32);
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extern struct iscsi_r2t *iscsit_get_r2t_from_list(struct iscsi_cmd *);
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extern void iscsit_free_r2t(struct iscsi_r2t *, struct iscsi_cmd *);
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extern void iscsit_free_r2ts_from_list(struct iscsi_cmd *);
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extern struct iscsi_cmd *iscsit_alloc_cmd(struct iscsi_conn *, gfp_t);
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extern struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *, int);
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extern struct iscsi_seq *iscsit_get_seq_holder_for_datain(struct iscsi_cmd *, u32);
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extern struct iscsi_seq *iscsit_get_seq_holder_for_r2t(struct iscsi_cmd *);
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extern struct iscsi_r2t *iscsit_get_holder_for_r2tsn(struct iscsi_cmd *, u32);
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extern int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
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unsigned char * ,__be32 cmdsn);
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extern int iscsit_check_unsolicited_dataout(struct iscsi_cmd *, unsigned char *);
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extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, itt_t);
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extern struct iscsi_cmd *iscsit_find_cmd_from_itt_or_dump(struct iscsi_conn *,
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itt_t, u32);
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extern struct iscsi_cmd *iscsit_find_cmd_from_ttt(struct iscsi_conn *, u32);
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extern int iscsit_find_cmd_for_recovery(struct iscsi_session *, struct iscsi_cmd **,
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struct iscsi_conn_recovery **, itt_t);
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extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
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extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *);
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extern void iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
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extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *);
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extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_conn *);
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extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *);
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extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *);
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extern void iscsit_release_cmd(struct iscsi_cmd *);
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extern void __iscsit_free_cmd(struct iscsi_cmd *, bool, bool);
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extern void iscsit_free_cmd(struct iscsi_cmd *, bool);
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extern int iscsit_check_session_usage_count(struct iscsi_session *);
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extern void iscsit_dec_session_usage_count(struct iscsi_session *);
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extern void iscsit_inc_session_usage_count(struct iscsi_session *);
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extern int iscsit_set_sync_and_steering_values(struct iscsi_conn *);
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extern struct iscsi_conn *iscsit_get_conn_from_cid(struct iscsi_session *, u16);
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extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *, u16);
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extern void iscsit_check_conn_usage_count(struct iscsi_conn *);
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extern void iscsit_dec_conn_usage_count(struct iscsi_conn *);
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extern void iscsit_inc_conn_usage_count(struct iscsi_conn *);
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extern void iscsit_mod_nopin_response_timer(struct iscsi_conn *);
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extern void iscsit_start_nopin_response_timer(struct iscsi_conn *);
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extern void iscsit_stop_nopin_response_timer(struct iscsi_conn *);
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extern void __iscsit_start_nopin_timer(struct iscsi_conn *);
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extern void iscsit_start_nopin_timer(struct iscsi_conn *);
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extern void iscsit_stop_nopin_timer(struct iscsi_conn *);
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extern int iscsit_send_tx_data(struct iscsi_cmd *, struct iscsi_conn *, int);
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extern int iscsit_fe_sendpage_sg(struct iscsi_cmd *, struct iscsi_conn *);
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extern int iscsit_tx_login_rsp(struct iscsi_conn *, u8, u8);
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extern void iscsit_print_session_params(struct iscsi_session *);
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extern int iscsit_print_dev_to_proc(char *, char **, off_t, int);
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extern int iscsit_print_sessions_to_proc(char *, char **, off_t, int);
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extern int iscsit_print_tpg_to_proc(char *, char **, off_t, int);
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extern int rx_data(struct iscsi_conn *, struct kvec *, int, int);
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extern int tx_data(struct iscsi_conn *, struct kvec *, int, int);
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extern void iscsit_collect_login_stats(struct iscsi_conn *, u8, u8);
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extern struct iscsi_tiqn *iscsit_snmp_get_tiqn(struct iscsi_conn *);
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#endif /*** ISCSI_TARGET_UTIL_H ***/
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