// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. * Copyright (c) 2014- QLogic Corporation. * All rights reserved * www.qlogic.com * * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. */ /* * fcpim.c - FCP initiator mode i-t nexus state machine */ #include "bfad_drv.h" #include "bfa_fcs.h" #include "bfa_fcbuild.h" #include "bfad_im.h" #include "bfa_fcpim.h" BFA_TRC_FILE(…); /* * forward declarations */ static void bfa_fcs_itnim_timeout(void *arg); static void bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim); static void bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, bfa_status_t req_status, u32 rsp_len, u32 resid_len, struct fchs_s *rsp_fchs); static void bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim, enum bfa_itnim_aen_event event); static void bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_hal_rport_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); struct bfa_fcs_itnim_sm_table_s { … }; static inline enum bfa_itnim_state bfa_fcs_itnim_sm_to_state(struct bfa_fcs_itnim_sm_table_s *smt, bfa_fcs_itnim_sm_t sm) { … } static struct bfa_fcs_itnim_sm_table_s itnim_sm_table[] = …; /* * fcs_itnim_sm FCS itnim state machine */ static void bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_hal_rport_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } /* * This state is set when a discovered rport is also in intiator mode. * This ITN is marked as no_op and is not active and will not be truned into * online state. */ static void bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { … } static void bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim, enum bfa_itnim_aen_event event) { … } static void bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced) { … } static void bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, bfa_status_t req_status, u32 rsp_len, u32 resid_len, struct fchs_s *rsp_fchs) { … } static void bfa_fcs_itnim_timeout(void *arg) { … } static void bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim) { … } /* * itnim_public FCS ITNIM public interfaces */ /* * Called by rport when a new rport is created. * * @param[in] rport - remote port. */ struct bfa_fcs_itnim_s * bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport) { … } /* * Called by rport to delete the instance of FCPIM. * * @param[in] rport - remote port. */ void bfa_fcs_itnim_delete(struct bfa_fcs_itnim_s *itnim) { … } /* * Notification from rport that PLOGI is complete to initiate FC-4 session. */ void bfa_fcs_itnim_brp_online(struct bfa_fcs_itnim_s *itnim) { … } /* * Called by rport to handle a remote device offline. */ void bfa_fcs_itnim_rport_offline(struct bfa_fcs_itnim_s *itnim) { … } /* * Called by rport when remote port is known to be an initiator from * PRLI received. */ void bfa_fcs_itnim_is_initiator(struct bfa_fcs_itnim_s *itnim) { … } /* * Called by rport to check if the itnim is online. */ bfa_status_t bfa_fcs_itnim_get_online_state(struct bfa_fcs_itnim_s *itnim) { … } /* * BFA completion callback for bfa_itnim_online(). */ void bfa_cb_itnim_online(void *cbarg) { … } /* * BFA completion callback for bfa_itnim_offline(). */ void bfa_cb_itnim_offline(void *cb_arg) { … } /* * Mark the beginning of PATH TOV handling. IO completion callbacks * are still pending. */ void bfa_cb_itnim_tov_begin(void *cb_arg) { … } /* * Mark the end of PATH TOV handling. All pending IOs are already cleaned up. */ void bfa_cb_itnim_tov(void *cb_arg) { … } /* * BFA notification to FCS/driver for second level error recovery. * * Atleast one I/O request has timedout and target is unresponsive to * repeated abort requests. Second level error recovery should be initiated * by starting implicit logout and recovery procedures. */ void bfa_cb_itnim_sler(void *cb_arg) { … } struct bfa_fcs_itnim_s * bfa_fcs_itnim_lookup(struct bfa_fcs_lport_s *port, wwn_t rpwwn) { … } bfa_status_t bfa_fcs_itnim_attr_get(struct bfa_fcs_lport_s *port, wwn_t rpwwn, struct bfa_itnim_attr_s *attr) { … } bfa_status_t bfa_fcs_itnim_stats_get(struct bfa_fcs_lport_s *port, wwn_t rpwwn, struct bfa_itnim_stats_s *stats) { … } bfa_status_t bfa_fcs_itnim_stats_clear(struct bfa_fcs_lport_s *port, wwn_t rpwwn) { … } void bfa_fcs_fcpim_uf_recv(struct bfa_fcs_itnim_s *itnim, struct fchs_s *fchs, u16 len) { … }
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