| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Krishna Gudipati | 15650 | 94.22% | 15 | 48.39% |
| Maggie Zhang | 539 | 3.25% | 6 | 19.35% |
| Jing Huang | 417 | 2.51% | 7 | 22.58% |
| Arnd Bergmann | 2 | 0.01% | 1 | 3.23% |
| Jiri Kosina | 1 | 0.01% | 1 | 3.23% |
| Anil Gurumurthy | 1 | 0.01% | 1 | 3.23% |
| Total | 16610 | 31 |
/* * 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. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License (GPL) Version 2 as * published by the Free Software Foundation * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ #include "bfad_drv.h" #include "bfa_modules.h" BFA_TRC_FILE(HAL, FCPIM); /* * BFA ITNIM Related definitions */ static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim); #define BFA_ITNIM_FROM_TAG(_fcpim, _tag) \ (((_fcpim)->itnim_arr + ((_tag) & ((_fcpim)->num_itnims - 1)))) #define bfa_fcpim_additn(__itnim) \ list_add_tail(&(__itnim)->qe, &(__itnim)->fcpim->itnim_q) #define bfa_fcpim_delitn(__itnim) do { \ WARN_ON(!bfa_q_is_on_q(&(__itnim)->fcpim->itnim_q, __itnim)); \ bfa_itnim_update_del_itn_stats(__itnim); \ list_del(&(__itnim)->qe); \ WARN_ON(!list_empty(&(__itnim)->io_q)); \ WARN_ON(!list_empty(&(__itnim)->io_cleanup_q)); \ WARN_ON(!list_empty(&(__itnim)->pending_q)); \ } while (0) #define bfa_itnim_online_cb(__itnim) do { \ if ((__itnim)->bfa->fcs) \ bfa_cb_itnim_online((__itnim)->ditn); \ else { \ bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ __bfa_cb_itnim_online, (__itnim)); \ } \ } while (0) #define bfa_itnim_offline_cb(__itnim) do { \ if ((__itnim)->bfa->fcs) \ bfa_cb_itnim_offline((__itnim)->ditn); \ else { \ bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ __bfa_cb_itnim_offline, (__itnim)); \ } \ } while (0) #define bfa_itnim_sler_cb(__itnim) do { \ if ((__itnim)->bfa->fcs) \ bfa_cb_itnim_sler((__itnim)->ditn); \ else { \ bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ __bfa_cb_itnim_sler, (__itnim)); \ } \ } while (0) enum bfa_ioim_lm_ua_status { BFA_IOIM_LM_UA_RESET = 0, BFA_IOIM_LM_UA_SET = 1, }; /* * itnim state machine event */ enum bfa_itnim_event { BFA_ITNIM_SM_CREATE = 1, /* itnim is created */ BFA_ITNIM_SM_ONLINE = 2, /* itnim is online */ BFA_ITNIM_SM_OFFLINE = 3, /* itnim is offline */ BFA_ITNIM_SM_FWRSP = 4, /* firmware response */ BFA_ITNIM_SM_DELETE = 5, /* deleting an existing itnim */ BFA_ITNIM_SM_CLEANUP = 6, /* IO cleanup completion */ BFA_ITNIM_SM_SLER = 7, /* second level error recovery */ BFA_ITNIM_SM_HWFAIL = 8, /* IOC h/w failure event */ BFA_ITNIM_SM_QRESUME = 9, /* queue space available */ }; /* * BFA IOIM related definitions */ #define bfa_ioim_move_to_comp_q(__ioim) do { \ list_del(&(__ioim)->qe); \ list_add_tail(&(__ioim)->qe, &(__ioim)->fcpim->ioim_comp_q); \ } while (0) #define bfa_ioim_cb_profile_comp(__fcpim, __ioim) do { \ if ((__fcpim)->profile_comp) \ (__fcpim)->profile_comp(__ioim); \ } while (0) #define bfa_ioim_cb_profile_start(__fcpim, __ioim) do { \ if ((__fcpim)->profile_start) \ (__fcpim)->profile_start(__ioim); \ } while (0) /* * IO state machine events */ enum bfa_ioim_event { BFA_IOIM_SM_START = 1, /* io start request from host */ BFA_IOIM_SM_COMP_GOOD = 2, /* io good comp, resource free */ BFA_IOIM_SM_COMP = 3, /* io comp, resource is free */ BFA_IOIM_SM_COMP_UTAG = 4, /* io comp, resource is free */ BFA_IOIM_SM_DONE = 5, /* io comp, resource not free */ BFA_IOIM_SM_FREE = 6, /* io resource is freed */ BFA_IOIM_SM_ABORT = 7, /* abort request from scsi stack */ BFA_IOIM_SM_ABORT_COMP = 8, /* abort from f/w */ BFA_IOIM_SM_ABORT_DONE = 9, /* abort completion from f/w */ BFA_IOIM_SM_QRESUME = 10, /* CQ space available to queue IO */ BFA_IOIM_SM_SGALLOCED = 11, /* SG page allocation successful */ BFA_IOIM_SM_SQRETRY = 12, /* sequence recovery retry */ BFA_IOIM_SM_HCB = 13, /* bfa callback complete */ BFA_IOIM_SM_CLEANUP = 14, /* IO cleanup from itnim */ BFA_IOIM_SM_TMSTART = 15, /* IO cleanup from tskim */ BFA_IOIM_SM_TMDONE = 16, /* IO cleanup from tskim */ BFA_IOIM_SM_HWFAIL = 17, /* IOC h/w failure event */ BFA_IOIM_SM_IOTOV = 18, /* ITN offline TOV */ }; /* * BFA TSKIM related definitions */ /* * task management completion handling */ #define bfa_tskim_qcomp(__tskim, __cbfn) do { \ bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, __cbfn, (__tskim));\ bfa_tskim_notify_comp(__tskim); \ } while (0) #define bfa_tskim_notify_comp(__tskim) do { \ if ((__tskim)->notify) \ bfa_itnim_tskdone((__tskim)->itnim); \ } while (0) enum bfa_tskim_event { BFA_TSKIM_SM_START = 1, /* TM command start */ BFA_TSKIM_SM_DONE = 2, /* TM completion */ BFA_TSKIM_SM_QRESUME = 3, /* resume after qfull */ BFA_TSKIM_SM_HWFAIL = 5, /* IOC h/w failure event */ BFA_TSKIM_SM_HCB = 6, /* BFA callback completion */ BFA_TSKIM_SM_IOS_DONE = 7, /* IO and sub TM completions */ BFA_TSKIM_SM_CLEANUP = 8, /* TM cleanup on ITN offline */ BFA_TSKIM_SM_CLEANUP_DONE = 9, /* TM abort completion */ BFA_TSKIM_SM_UTAG = 10, /* TM completion unknown tag */ }; /* * forward declaration for BFA ITNIM functions */ static void bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim); static bfa_boolean_t bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim); static bfa_boolean_t bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim); static void bfa_itnim_cleanp_comp(void *itnim_cbarg); static void bfa_itnim_cleanup(struct bfa_itnim_s *itnim); static void __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete); static void bfa_itnim_iotov_online(struct bfa_itnim_s *itnim); static void bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim); static void bfa_itnim_iotov(void *itnim_arg); static void bfa_itnim_iotov_start(struct bfa_itnim_s *itnim); static void bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim); static void bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim); /* * forward declaration of ITNIM state machine */ static void bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_created(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_online(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); static void bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, enum bfa_itnim_event event); /* * forward declaration for BFA IOIM functions */ static bfa_boolean_t bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim); static bfa_boolean_t bfa_ioim_sgpg_alloc(struct bfa_ioim_s *ioim); static bfa_boolean_t bfa_ioim_send_abort(struct bfa_ioim_s *ioim); static void bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim); static void __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete); static bfa_boolean_t bfa_ioim_is_abortable(struct bfa_ioim_s *ioim); /* * forward declaration of BFA IO state machine */ static void bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); static void bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, enum bfa_ioim_event event); /* * forward declaration for BFA TSKIM functions */ static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete); static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete); static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim, struct scsi_lun lun); static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim); static void bfa_tskim_cleanp_comp(void *tskim_cbarg); static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim); static bfa_boolean_t bfa_tskim_send(struct bfa_tskim_s *tskim); static bfa_boolean_t bfa_tskim_send_abort(struct bfa_tskim_s *tskim); static void bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim); /* * forward declaration of BFA TSKIM state machine */ static void bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); static void bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); static void bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); static void bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); static void bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); static void bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); static void bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event); /* * BFA FCP Initiator Mode module */ /* * Compute and return memory needed by FCP(im) module. */ static void bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len) { bfa_itnim_meminfo(cfg, km_len); /* * IO memory */ *km_len += cfg->fwcfg.num_ioim_reqs * (sizeof(struct bfa_ioim_s) + sizeof(struct bfa_ioim_sp_s)); /* * task management command memory */ if (cfg->fwcfg.num_tskim_reqs < BFA_TSKIM_MIN) cfg->fwcfg.num_tskim_reqs = BFA_TSKIM_MIN; *km_len += cfg->fwcfg.num_tskim_reqs * sizeof(struct bfa_tskim_s); } static void bfa_fcpim_attach(struct bfa_fcp_mod_s *fcp, void *bfad, struct bfa_iocfc_cfg_s *cfg, struct bfa_pcidev_s *pcidev) { struct bfa_fcpim_s *fcpim = &fcp->fcpim; struct bfa_s *bfa = fcp->bfa; bfa_trc(bfa, cfg->drvcfg.path_tov); bfa_trc(bfa, cfg->fwcfg.num_rports); bfa_trc(bfa, cfg->fwcfg.num_ioim_reqs); bfa_trc(bfa, cfg->fwcfg.num_tskim_reqs); fcpim->fcp = fcp; fcpim->bfa = bfa; fcpim->num_itnims = cfg->fwcfg.num_rports; fcpim->num_tskim_reqs = cfg->fwcfg.num_tskim_reqs; fcpim->path_tov = cfg->drvcfg.path_tov; fcpim->delay_comp = cfg->drvcfg.delay_comp; fcpim->profile_comp = NULL; fcpim->profile_start = NULL; bfa_itnim_attach(fcpim); bfa_tskim_attach(fcpim); bfa_ioim_attach(fcpim); } void bfa_fcpim_iocdisable(struct bfa_fcp_mod_s *fcp) { struct bfa_fcpim_s *fcpim = &fcp->fcpim; struct bfa_itnim_s *itnim; struct list_head *qe, *qen; /* Enqueue unused ioim resources to free_q */ list_splice_tail_init(&fcpim->tskim_unused_q, &fcpim->tskim_free_q); list_for_each_safe(qe, qen, &fcpim->itnim_q) { itnim = (struct bfa_itnim_s *) qe; bfa_itnim_iocdisable(itnim); } } void bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); fcpim->path_tov = path_tov * 1000; if (fcpim->path_tov > BFA_FCPIM_PATHTOV_MAX) fcpim->path_tov = BFA_FCPIM_PATHTOV_MAX; } u16 bfa_fcpim_path_tov_get(struct bfa_s *bfa) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); return fcpim->path_tov / 1000; } #define bfa_fcpim_add_iostats(__l, __r, __stats) \ (__l->__stats += __r->__stats) void bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *lstats, struct bfa_itnim_iostats_s *rstats) { bfa_fcpim_add_iostats(lstats, rstats, total_ios); bfa_fcpim_add_iostats(lstats, rstats, qresumes); bfa_fcpim_add_iostats(lstats, rstats, no_iotags); bfa_fcpim_add_iostats(lstats, rstats, io_aborts); bfa_fcpim_add_iostats(lstats, rstats, no_tskims); bfa_fcpim_add_iostats(lstats, rstats, iocomp_ok); bfa_fcpim_add_iostats(lstats, rstats, iocomp_underrun); bfa_fcpim_add_iostats(lstats, rstats, iocomp_overrun); bfa_fcpim_add_iostats(lstats, rstats, iocomp_aborted); bfa_fcpim_add_iostats(lstats, rstats, iocomp_timedout); bfa_fcpim_add_iostats(lstats, rstats, iocom_nexus_abort); bfa_fcpim_add_iostats(lstats, rstats, iocom_proto_err); bfa_fcpim_add_iostats(lstats, rstats, iocom_dif_err); bfa_fcpim_add_iostats(lstats, rstats, iocom_sqer_needed); bfa_fcpim_add_iostats(lstats, rstats, iocom_res_free); bfa_fcpim_add_iostats(lstats, rstats, iocom_hostabrts); bfa_fcpim_add_iostats(lstats, rstats, iocom_utags); bfa_fcpim_add_iostats(lstats, rstats, io_cleanups); bfa_fcpim_add_iostats(lstats, rstats, io_tmaborts); bfa_fcpim_add_iostats(lstats, rstats, onlines); bfa_fcpim_add_iostats(lstats, rstats, offlines); bfa_fcpim_add_iostats(lstats, rstats, creates); bfa_fcpim_add_iostats(lstats, rstats, deletes); bfa_fcpim_add_iostats(lstats, rstats, create_comps); bfa_fcpim_add_iostats(lstats, rstats, delete_comps); bfa_fcpim_add_iostats(lstats, rstats, sler_events); bfa_fcpim_add_iostats(lstats, rstats, fw_create); bfa_fcpim_add_iostats(lstats, rstats, fw_delete); bfa_fcpim_add_iostats(lstats, rstats, ioc_disabled); bfa_fcpim_add_iostats(lstats, rstats, cleanup_comps); bfa_fcpim_add_iostats(lstats, rstats, tm_cmnds); bfa_fcpim_add_iostats(lstats, rstats, tm_fw_rsps); bfa_fcpim_add_iostats(lstats, rstats, tm_success); bfa_fcpim_add_iostats(lstats, rstats, tm_failures); bfa_fcpim_add_iostats(lstats, rstats, tm_io_comps); bfa_fcpim_add_iostats(lstats, rstats, tm_qresumes); bfa_fcpim_add_iostats(lstats, rstats, tm_iocdowns); bfa_fcpim_add_iostats(lstats, rstats, tm_cleanups); bfa_fcpim_add_iostats(lstats, rstats, tm_cleanup_comps); bfa_fcpim_add_iostats(lstats, rstats, io_comps); bfa_fcpim_add_iostats(lstats, rstats, input_reqs); bfa_fcpim_add_iostats(lstats, rstats, output_reqs); bfa_fcpim_add_iostats(lstats, rstats, rd_throughput); bfa_fcpim_add_iostats(lstats, rstats, wr_throughput); } bfa_status_t bfa_fcpim_port_iostats(struct bfa_s *bfa, struct bfa_itnim_iostats_s *stats, u8 lp_tag) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct list_head *qe, *qen; struct bfa_itnim_s *itnim; /* accumulate IO stats from itnim */ memset(stats, 0, sizeof(struct bfa_itnim_iostats_s)); list_for_each_safe(qe, qen, &fcpim->itnim_q) { itnim = (struct bfa_itnim_s *) qe; if (itnim->rport->rport_info.lp_tag != lp_tag) continue; bfa_fcpim_add_stats(stats, &(itnim->stats)); } return BFA_STATUS_OK; } void bfa_ioim_profile_comp(struct bfa_ioim_s *ioim) { struct bfa_itnim_latency_s *io_lat = &(ioim->itnim->ioprofile.io_latency); u32 val, idx; val = (u32)(jiffies - ioim->start_time); idx = bfa_ioim_get_index(scsi_bufflen((struct scsi_cmnd *)ioim->dio)); bfa_itnim_ioprofile_update(ioim->itnim, idx); io_lat->count[idx]++; io_lat->min[idx] = (io_lat->min[idx] < val) ? io_lat->min[idx] : val; io_lat->max[idx] = (io_lat->max[idx] > val) ? io_lat->max[idx] : val; io_lat->avg[idx] += val; } void bfa_ioim_profile_start(struct bfa_ioim_s *ioim) { ioim->start_time = jiffies; } bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, time64_t time) { struct bfa_itnim_s *itnim; struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct list_head *qe, *qen; /* accumulate IO stats from itnim */ list_for_each_safe(qe, qen, &fcpim->itnim_q) { itnim = (struct bfa_itnim_s *) qe; bfa_itnim_clear_stats(itnim); } fcpim->io_profile = BFA_TRUE; fcpim->io_profile_start_time = time; fcpim->profile_comp = bfa_ioim_profile_comp; fcpim->profile_start = bfa_ioim_profile_start; return BFA_STATUS_OK; } bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); fcpim->io_profile = BFA_FALSE; fcpim->io_profile_start_time = 0; fcpim->profile_comp = NULL; fcpim->profile_start = NULL; return BFA_STATUS_OK; } u16 bfa_fcpim_qdepth_get(struct bfa_s *bfa) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); return fcpim->q_depth; } /* * BFA ITNIM module state machine functions */ /* * Beginning/unallocated state - no events expected. */ static void bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_CREATE: bfa_sm_set_state(itnim, bfa_itnim_sm_created); itnim->is_online = BFA_FALSE; bfa_fcpim_additn(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Beginning state, only online event expected. */ static void bfa_itnim_sm_created(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_ONLINE: if (bfa_itnim_send_fwcreate(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); else bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_fcpim_delitn(itnim); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Waiting for itnim create response from firmware. */ static void bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_FWRSP: bfa_sm_set_state(itnim, bfa_itnim_sm_online); itnim->is_online = BFA_TRUE; bfa_itnim_iotov_online(itnim); bfa_itnim_online_cb(itnim); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_delete_pending); break; case BFA_ITNIM_SM_OFFLINE: if (bfa_itnim_send_fwdelete(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); else bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); break; default: bfa_sm_fault(itnim->bfa, event); } } static void bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_QRESUME: bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); bfa_itnim_send_fwcreate(itnim); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_reqq_wcancel(&itnim->reqq_wait); bfa_fcpim_delitn(itnim); break; case BFA_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_itnim_sm_offline); bfa_reqq_wcancel(&itnim->reqq_wait); bfa_itnim_offline_cb(itnim); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); bfa_reqq_wcancel(&itnim->reqq_wait); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Waiting for itnim create response from firmware, a delete is pending. */ static void bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_FWRSP: if (bfa_itnim_send_fwdelete(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); else bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_fcpim_delitn(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Online state - normal parking state. */ static void bfa_itnim_sm_online(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); itnim->is_online = BFA_FALSE; bfa_itnim_iotov_start(itnim); bfa_itnim_cleanup(itnim); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); itnim->is_online = BFA_FALSE; bfa_itnim_cleanup(itnim); break; case BFA_ITNIM_SM_SLER: bfa_sm_set_state(itnim, bfa_itnim_sm_sler); itnim->is_online = BFA_FALSE; bfa_itnim_iotov_start(itnim); bfa_itnim_sler_cb(itnim); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); itnim->is_online = BFA_FALSE; bfa_itnim_iotov_start(itnim); bfa_itnim_iocdisable_cleanup(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Second level error recovery need. */ static void bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); bfa_itnim_cleanup(itnim); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); bfa_itnim_cleanup(itnim); bfa_itnim_iotov_delete(itnim); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); bfa_itnim_iocdisable_cleanup(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Going offline. Waiting for active IO cleanup. */ static void bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_CLEANUP: if (bfa_itnim_send_fwdelete(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); else bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); bfa_itnim_iotov_delete(itnim); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); bfa_itnim_iocdisable_cleanup(itnim); bfa_itnim_offline_cb(itnim); break; case BFA_ITNIM_SM_SLER: break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Deleting itnim. Waiting for active IO cleanup. */ static void bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_CLEANUP: if (bfa_itnim_send_fwdelete(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); else bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); bfa_itnim_iocdisable_cleanup(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Rport offline. Fimrware itnim is being deleted - awaiting f/w response. */ static void bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_FWRSP: bfa_sm_set_state(itnim, bfa_itnim_sm_offline); bfa_itnim_offline_cb(itnim); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); bfa_itnim_offline_cb(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } static void bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_QRESUME: bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); bfa_itnim_send_fwdelete(itnim); break; case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); bfa_reqq_wcancel(&itnim->reqq_wait); bfa_itnim_offline_cb(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Offline state. */ static void bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_itnim_iotov_delete(itnim); bfa_fcpim_delitn(itnim); break; case BFA_ITNIM_SM_ONLINE: if (bfa_itnim_send_fwcreate(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); else bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); break; default: bfa_sm_fault(itnim->bfa, event); } } static void bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_itnim_iotov_delete(itnim); bfa_fcpim_delitn(itnim); break; case BFA_ITNIM_SM_OFFLINE: bfa_itnim_offline_cb(itnim); break; case BFA_ITNIM_SM_ONLINE: if (bfa_itnim_send_fwcreate(itnim)) bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); else bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); break; case BFA_ITNIM_SM_HWFAIL: break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Itnim is deleted, waiting for firmware response to delete. */ static void bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_FWRSP: case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_fcpim_delitn(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } static void bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) { bfa_trc(itnim->bfa, itnim->rport->rport_tag); bfa_trc(itnim->bfa, event); switch (event) { case BFA_ITNIM_SM_QRESUME: bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); bfa_itnim_send_fwdelete(itnim); break; case BFA_ITNIM_SM_HWFAIL: bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); bfa_reqq_wcancel(&itnim->reqq_wait); bfa_fcpim_delitn(itnim); break; default: bfa_sm_fault(itnim->bfa, event); } } /* * Initiate cleanup of all IOs on an IOC failure. */ static void bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim) { struct bfa_tskim_s *tskim; struct bfa_ioim_s *ioim; struct list_head *qe, *qen; list_for_each_safe(qe, qen, &itnim->tsk_q) { tskim = (struct bfa_tskim_s *) qe; bfa_tskim_iocdisable(tskim); } list_for_each_safe(qe, qen, &itnim->io_q) { ioim = (struct bfa_ioim_s *) qe; bfa_ioim_iocdisable(ioim); } /* * For IO request in pending queue, we pretend an early timeout. */ list_for_each_safe(qe, qen, &itnim->pending_q) { ioim = (struct bfa_ioim_s *) qe; bfa_ioim_tov(ioim); } list_for_each_safe(qe, qen, &itnim->io_cleanup_q) { ioim = (struct bfa_ioim_s *) qe; bfa_ioim_iocdisable(ioim); } } /* * IO cleanup completion */ static void bfa_itnim_cleanp_comp(void *itnim_cbarg) { struct bfa_itnim_s *itnim = itnim_cbarg; bfa_stats(itnim, cleanup_comps); bfa_sm_send_event(itnim, BFA_ITNIM_SM_CLEANUP); } /* * Initiate cleanup of all IOs. */ static void bfa_itnim_cleanup(struct bfa_itnim_s *itnim) { struct bfa_ioim_s *ioim; struct bfa_tskim_s *tskim; struct list_head *qe, *qen; bfa_wc_init(&itnim->wc, bfa_itnim_cleanp_comp, itnim); list_for_each_safe(qe, qen, &itnim->io_q) { ioim = (struct bfa_ioim_s *) qe; /* * Move IO to a cleanup queue from active queue so that a later * TM will not pickup this IO. */ list_del(&ioim->qe); list_add_tail(&ioim->qe, &itnim->io_cleanup_q); bfa_wc_up(&itnim->wc); bfa_ioim_cleanup(ioim); } list_for_each_safe(qe, qen, &itnim->tsk_q) { tskim = (struct bfa_tskim_s *) qe; bfa_wc_up(&itnim->wc); bfa_tskim_cleanup(tskim); } bfa_wc_wait(&itnim->wc); } static void __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete) { struct bfa_itnim_s *itnim = cbarg; if (complete) bfa_cb_itnim_online(itnim->ditn); } static void __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete) { struct bfa_itnim_s *itnim = cbarg; if (complete) bfa_cb_itnim_offline(itnim->ditn); } static void __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete) { struct bfa_itnim_s *itnim = cbarg; if (complete) bfa_cb_itnim_sler(itnim->ditn); } /* * Call to resume any I/O requests waiting for room in request queue. */ static void bfa_itnim_qresume(void *cbarg) { struct bfa_itnim_s *itnim = cbarg; bfa_sm_send_event(itnim, BFA_ITNIM_SM_QRESUME); } /* * bfa_itnim_public */ void bfa_itnim_iodone(struct bfa_itnim_s *itnim) { bfa_wc_down(&itnim->wc); } void bfa_itnim_tskdone(struct bfa_itnim_s *itnim) { bfa_wc_down(&itnim->wc); } void bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len) { /* * ITN memory */ *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itnim_s); } void bfa_itnim_attach(struct bfa_fcpim_s *fcpim) { struct bfa_s *bfa = fcpim->bfa; struct bfa_fcp_mod_s *fcp = fcpim->fcp; struct bfa_itnim_s *itnim; int i, j; INIT_LIST_HEAD(&fcpim->itnim_q); itnim = (struct bfa_itnim_s *) bfa_mem_kva_curp(fcp); fcpim->itnim_arr = itnim; for (i = 0; i < fcpim->num_itnims; i++, itnim++) { memset(itnim, 0, sizeof(struct bfa_itnim_s)); itnim->bfa = bfa; itnim->fcpim = fcpim; itnim->reqq = BFA_REQQ_QOS_LO; itnim->rport = BFA_RPORT_FROM_TAG(bfa, i); itnim->iotov_active = BFA_FALSE; bfa_reqq_winit(&itnim->reqq_wait, bfa_itnim_qresume, itnim); INIT_LIST_HEAD(&itnim->io_q); INIT_LIST_HEAD(&itnim->io_cleanup_q); INIT_LIST_HEAD(&itnim->pending_q); INIT_LIST_HEAD(&itnim->tsk_q); INIT_LIST_HEAD(&itnim->delay_comp_q); for (j = 0; j < BFA_IOBUCKET_MAX; j++) itnim->ioprofile.io_latency.min[j] = ~0; bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); } bfa_mem_kva_curp(fcp) = (u8 *) itnim; } void bfa_itnim_iocdisable(struct bfa_itnim_s *itnim) { bfa_stats(itnim, ioc_disabled); bfa_sm_send_event(itnim, BFA_ITNIM_SM_HWFAIL); } static bfa_boolean_t bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim) { struct bfi_itn_create_req_s *m; itnim->msg_no++; /* * check for room in queue to send request now */ m = bfa_reqq_next(itnim->bfa, itnim->reqq); if (!m) { bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); return BFA_FALSE; } bfi_h2i_set(m->mh, BFI_MC_ITN, BFI_ITN_H2I_CREATE_REQ, bfa_fn_lpu(itnim->bfa)); m->fw_handle = itnim->rport->fw_handle; m->class = FC_CLASS_3; m->seq_rec = itnim->seq_rec; m->msg_no = itnim->msg_no; bfa_stats(itnim, fw_create); /* * queue I/O message to firmware */ bfa_reqq_produce(itnim->bfa, itnim->reqq, m->mh); return BFA_TRUE; } static bfa_boolean_t bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim) { struct bfi_itn_delete_req_s *m; /* * check for room in queue to send request now */ m = bfa_reqq_next(itnim->bfa, itnim->reqq); if (!m) { bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); return BFA_FALSE; } bfi_h2i_set(m->mh, BFI_MC_ITN, BFI_ITN_H2I_DELETE_REQ, bfa_fn_lpu(itnim->bfa)); m->fw_handle = itnim->rport->fw_handle; bfa_stats(itnim, fw_delete); /* * queue I/O message to firmware */ bfa_reqq_produce(itnim->bfa, itnim->reqq, m->mh); return BFA_TRUE; } /* * Cleanup all pending failed inflight requests. */ static void bfa_itnim_delayed_comp(struct bfa_itnim_s *itnim, bfa_boolean_t iotov) { struct bfa_ioim_s *ioim; struct list_head *qe, *qen; list_for_each_safe(qe, qen, &itnim->delay_comp_q) { ioim = (struct bfa_ioim_s *)qe; bfa_ioim_delayed_comp(ioim, iotov); } } /* * Start all pending IO requests. */ static void bfa_itnim_iotov_online(struct bfa_itnim_s *itnim) { struct bfa_ioim_s *ioim; bfa_itnim_iotov_stop(itnim); /* * Abort all inflight IO requests in the queue */ bfa_itnim_delayed_comp(itnim, BFA_FALSE); /* * Start all pending IO requests. */ while (!list_empty(&itnim->pending_q)) { bfa_q_deq(&itnim->pending_q, &ioim); list_add_tail(&ioim->qe, &itnim->io_q); bfa_ioim_start(ioim); } } /* * Fail all pending IO requests */ static void bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim) { struct bfa_ioim_s *ioim; /* * Fail all inflight IO requests in the queue */ bfa_itnim_delayed_comp(itnim, BFA_TRUE); /* * Fail any pending IO requests. */ while (!list_empty(&itnim->pending_q)) { bfa_q_deq(&itnim->pending_q, &ioim); list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); bfa_ioim_tov(ioim); } } /* * IO TOV timer callback. Fail any pending IO requests. */ static void bfa_itnim_iotov(void *itnim_arg) { struct bfa_itnim_s *itnim = itnim_arg; itnim->iotov_active = BFA_FALSE; bfa_cb_itnim_tov_begin(itnim->ditn); bfa_itnim_iotov_cleanup(itnim); bfa_cb_itnim_tov(itnim->ditn); } /* * Start IO TOV timer for failing back pending IO requests in offline state. */ static void bfa_itnim_iotov_start(struct bfa_itnim_s *itnim) { if (itnim->fcpim->path_tov > 0) { itnim->iotov_active = BFA_TRUE; WARN_ON(!bfa_itnim_hold_io(itnim)); bfa_timer_start(itnim->bfa, &itnim->timer, bfa_itnim_iotov, itnim, itnim->fcpim->path_tov); } } /* * Stop IO TOV timer. */ static void bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim) { if (itnim->iotov_active) { itnim->iotov_active = BFA_FALSE; bfa_timer_stop(&itnim->timer); } } /* * Stop IO TOV timer. */ static void bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim) { bfa_boolean_t pathtov_active = BFA_FALSE; if (itnim->iotov_active) pathtov_active = BFA_TRUE; bfa_itnim_iotov_stop(itnim); if (pathtov_active) bfa_cb_itnim_tov_begin(itnim->ditn); bfa_itnim_iotov_cleanup(itnim); if (pathtov_active) bfa_cb_itnim_tov(itnim->ditn); } static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(itnim->bfa); fcpim->del_itn_stats.del_itn_iocomp_aborted += itnim->stats.iocomp_aborted; fcpim->del_itn_stats.del_itn_iocomp_timedout += itnim->stats.iocomp_timedout; fcpim->del_itn_stats.del_itn_iocom_sqer_needed += itnim->stats.iocom_sqer_needed; fcpim->del_itn_stats.del_itn_iocom_res_free += itnim->stats.iocom_res_free; fcpim->del_itn_stats.del_itn_iocom_hostabrts += itnim->stats.iocom_hostabrts; fcpim->del_itn_stats.del_itn_total_ios += itnim->stats.total_ios; fcpim->del_itn_stats.del_io_iocdowns += itnim->stats.io_iocdowns; fcpim->del_itn_stats.del_tm_iocdowns += itnim->stats.tm_iocdowns; } /* * bfa_itnim_public */ /* * Itnim interrupt processing. */ void bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); union bfi_itn_i2h_msg_u msg; struct bfa_itnim_s *itnim; bfa_trc(bfa, m->mhdr.msg_id); msg.msg = m; switch (m->mhdr.msg_id) { case BFI_ITN_I2H_CREATE_RSP: itnim = BFA_ITNIM_FROM_TAG(fcpim, msg.create_rsp->bfa_handle); WARN_ON(msg.create_rsp->status != BFA_STATUS_OK); bfa_stats(itnim, create_comps); bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); break; case BFI_ITN_I2H_DELETE_RSP: itnim = BFA_ITNIM_FROM_TAG(fcpim, msg.delete_rsp->bfa_handle); WARN_ON(msg.delete_rsp->status != BFA_STATUS_OK); bfa_stats(itnim, delete_comps); bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); break; case BFI_ITN_I2H_SLER_EVENT: itnim = BFA_ITNIM_FROM_TAG(fcpim, msg.sler_event->bfa_handle); bfa_stats(itnim, sler_events); bfa_sm_send_event(itnim, BFA_ITNIM_SM_SLER); break; default: bfa_trc(bfa, m->mhdr.msg_id); WARN_ON(1); } } /* * bfa_itnim_api */ struct bfa_itnim_s * bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfa_itnim_s *itnim; bfa_itn_create(bfa, rport, bfa_itnim_isr); itnim = BFA_ITNIM_FROM_TAG(fcpim, rport->rport_tag); WARN_ON(itnim->rport != rport); itnim->ditn = ditn; bfa_stats(itnim, creates); bfa_sm_send_event(itnim, BFA_ITNIM_SM_CREATE); return itnim; } void bfa_itnim_delete(struct bfa_itnim_s *itnim) { bfa_stats(itnim, deletes); bfa_sm_send_event(itnim, BFA_ITNIM_SM_DELETE); } void bfa_itnim_online(struct bfa_itnim_s *itnim, bfa_boolean_t seq_rec) { itnim->seq_rec = seq_rec; bfa_stats(itnim, onlines); bfa_sm_send_event(itnim, BFA_ITNIM_SM_ONLINE); } void bfa_itnim_offline(struct bfa_itnim_s *itnim) { bfa_stats(itnim, offlines); bfa_sm_send_event(itnim, BFA_ITNIM_SM_OFFLINE); } /* * Return true if itnim is considered offline for holding off IO request. * IO is not held if itnim is being deleted. */ bfa_boolean_t bfa_itnim_hold_io(struct bfa_itnim_s *itnim) { return itnim->fcpim->path_tov && itnim->iotov_active && (bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwcreate) || bfa_sm_cmp_state(itnim, bfa_itnim_sm_sler) || bfa_sm_cmp_state(itnim, bfa_itnim_sm_cleanup_offline) || bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwdelete) || bfa_sm_cmp_state(itnim, bfa_itnim_sm_offline) || bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable)); } #define bfa_io_lat_clock_res_div HZ #define bfa_io_lat_clock_res_mul 1000 bfa_status_t bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim, struct bfa_itnim_ioprofile_s *ioprofile) { struct bfa_fcpim_s *fcpim; if (!itnim) return BFA_STATUS_NO_FCPIM_NEXUS; fcpim = BFA_FCPIM(itnim->bfa); if (!fcpim->io_profile) return BFA_STATUS_IOPROFILE_OFF; itnim->ioprofile.index = BFA_IOBUCKET_MAX; /* unsigned 32-bit time_t overflow here in y2106 */ itnim->ioprofile.io_profile_start_time = bfa_io_profile_start_time(itnim->bfa); itnim->ioprofile.clock_res_mul = bfa_io_lat_clock_res_mul; itnim->ioprofile.clock_res_div = bfa_io_lat_clock_res_div; *ioprofile = itnim->ioprofile; return BFA_STATUS_OK; } void bfa_itnim_clear_stats(struct bfa_itnim_s *itnim) { int j; if (!itnim) return; memset(&itnim->stats, 0, sizeof(itnim->stats)); memset(&itnim->ioprofile, 0, sizeof(itnim->ioprofile)); for (j = 0; j < BFA_IOBUCKET_MAX; j++) itnim->ioprofile.io_latency.min[j] = ~0; } /* * BFA IO module state machine functions */ /* * IO is not started (unallocated). */ static void bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { switch (event) { case BFA_IOIM_SM_START: if (!bfa_itnim_is_online(ioim->itnim)) { if (!bfa_itnim_hold_io(ioim->itnim)) { bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_pathtov, ioim); } else { list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->itnim->pending_q); } break; } if (ioim->nsges > BFI_SGE_INLINE) { if (!bfa_ioim_sgpg_alloc(ioim)) { bfa_sm_set_state(ioim, bfa_ioim_sm_sgalloc); return; } } if (!bfa_ioim_send_ioreq(ioim)) { bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); break; } bfa_sm_set_state(ioim, bfa_ioim_sm_active); break; case BFA_IOIM_SM_IOTOV: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_pathtov, ioim); break; case BFA_IOIM_SM_ABORT: /* * IO in pending queue can get abort requests. Complete abort * requests immediately. */ bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); WARN_ON(!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim)); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is waiting for SG pages. */ static void bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_SGALLOCED: if (!bfa_ioim_send_ioreq(ioim)) { bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); break; } bfa_sm_set_state(ioim, bfa_ioim_sm_active); break; case BFA_IOIM_SM_CLEANUP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_ABORT: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is active. */ static void bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { switch (event) { case BFA_IOIM_SM_COMP_GOOD: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_good_comp, ioim); break; case BFA_IOIM_SM_COMP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp, ioim); break; case BFA_IOIM_SM_DONE: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp, ioim); break; case BFA_IOIM_SM_ABORT: ioim->iosp->abort_explicit = BFA_TRUE; ioim->io_cbfn = __bfa_cb_ioim_abort; if (bfa_ioim_send_abort(ioim)) bfa_sm_set_state(ioim, bfa_ioim_sm_abort); else { bfa_sm_set_state(ioim, bfa_ioim_sm_abort_qfull); bfa_stats(ioim->itnim, qwait); bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); } break; case BFA_IOIM_SM_CLEANUP: ioim->iosp->abort_explicit = BFA_FALSE; ioim->io_cbfn = __bfa_cb_ioim_failed; if (bfa_ioim_send_abort(ioim)) bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); else { bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); bfa_stats(ioim->itnim, qwait); bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); } break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; case BFA_IOIM_SM_SQRETRY: if (bfa_ioim_maxretry_reached(ioim)) { /* max retry reached, free IO */ bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; } /* waiting for IO tag resource free */ bfa_sm_set_state(ioim, bfa_ioim_sm_cmnd_retry); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is retried with new tag. */ static void bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { switch (event) { case BFA_IOIM_SM_FREE: /* abts and rrq done. Now retry the IO with new tag */ bfa_ioim_update_iotag(ioim); if (!bfa_ioim_send_ioreq(ioim)) { bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); break; } bfa_sm_set_state(ioim, bfa_ioim_sm_active); break; case BFA_IOIM_SM_CLEANUP: ioim->iosp->abort_explicit = BFA_FALSE; ioim->io_cbfn = __bfa_cb_ioim_failed; if (bfa_ioim_send_abort(ioim)) bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); else { bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); bfa_stats(ioim->itnim, qwait); bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); } break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; case BFA_IOIM_SM_ABORT: /* in this state IO abort is done. * Waiting for IO tag resource free. */ bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is being aborted, waiting for completion from firmware. */ static void bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_COMP_GOOD: case BFA_IOIM_SM_COMP: case BFA_IOIM_SM_DONE: case BFA_IOIM_SM_FREE: break; case BFA_IOIM_SM_ABORT_DONE: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_ABORT_COMP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_COMP_UTAG: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_CLEANUP: WARN_ON(ioim->iosp->abort_explicit != BFA_TRUE); ioim->iosp->abort_explicit = BFA_FALSE; if (bfa_ioim_send_abort(ioim)) bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); else { bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); bfa_stats(ioim->itnim, qwait); bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); } break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is being cleaned up (implicit abort), waiting for completion from * firmware. */ static void bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_COMP_GOOD: case BFA_IOIM_SM_COMP: case BFA_IOIM_SM_DONE: case BFA_IOIM_SM_FREE: break; case BFA_IOIM_SM_ABORT: /* * IO is already being aborted implicitly */ ioim->io_cbfn = __bfa_cb_ioim_abort; break; case BFA_IOIM_SM_ABORT_DONE: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_ABORT_COMP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_COMP_UTAG: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; case BFA_IOIM_SM_CLEANUP: /* * IO can be in cleanup state already due to TM command. * 2nd cleanup request comes from ITN offline event. */ break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is waiting for room in request CQ */ static void bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_QRESUME: bfa_sm_set_state(ioim, bfa_ioim_sm_active); bfa_ioim_send_ioreq(ioim); break; case BFA_IOIM_SM_ABORT: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_CLEANUP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * Active IO is being aborted, waiting for room in request CQ. */ static void bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_QRESUME: bfa_sm_set_state(ioim, bfa_ioim_sm_abort); bfa_ioim_send_abort(ioim); break; case BFA_IOIM_SM_CLEANUP: WARN_ON(ioim->iosp->abort_explicit != BFA_TRUE); ioim->iosp->abort_explicit = BFA_FALSE; bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); break; case BFA_IOIM_SM_COMP_GOOD: case BFA_IOIM_SM_COMP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_DONE: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, ioim); break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * Active IO is being cleaned up, waiting for room in request CQ. */ static void bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_QRESUME: bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); bfa_ioim_send_abort(ioim); break; case BFA_IOIM_SM_ABORT: /* * IO is already being cleaned up implicitly */ ioim->io_cbfn = __bfa_cb_ioim_abort; break; case BFA_IOIM_SM_COMP_GOOD: case BFA_IOIM_SM_COMP: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_DONE: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); bfa_reqq_wcancel(&ioim->iosp->reqq_wait); bfa_ioim_move_to_comp_q(ioim); bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, ioim); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO bfa callback is pending. */ static void bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { switch (event) { case BFA_IOIM_SM_HCB: bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); bfa_ioim_free(ioim); break; case BFA_IOIM_SM_CLEANUP: bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_HWFAIL: break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO bfa callback is pending. IO resource cannot be freed. */ static void bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_HCB: bfa_sm_set_state(ioim, bfa_ioim_sm_resfree); list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->fcpim->ioim_resfree_q); break; case BFA_IOIM_SM_FREE: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); break; case BFA_IOIM_SM_CLEANUP: bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_HWFAIL: bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); break; default: bfa_sm_fault(ioim->bfa, event); } } /* * IO is completed, waiting resource free from firmware. */ static void bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) { bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, event); switch (event) { case BFA_IOIM_SM_FREE: bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); bfa_ioim_free(ioim); break; case BFA_IOIM_SM_CLEANUP: bfa_ioim_notify_cleanup(ioim); break; case BFA_IOIM_SM_HWFAIL: break; default: bfa_sm_fault(ioim->bfa, event); } } /* * This is called from bfa_fcpim_start after the bfa_init() with flash read * is complete by driver. now invalidate the stale content of lun mask * like unit attention, rp tag and lp tag. */ void bfa_ioim_lm_init(struct bfa_s *bfa) { struct bfa_lun_mask_s *lunm_list; int i; if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return; lunm_list = bfa_get_lun_mask_list(bfa); for (i = 0; i < MAX_LUN_MASK_CFG; i++) { lunm_list[i].ua = BFA_IOIM_LM_UA_RESET; lunm_list[i].lp_tag = BFA_LP_TAG_INVALID; lunm_list[i].rp_tag = BFA_RPORT_TAG_INVALID; } } static void __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete) { struct bfa_ioim_s *ioim = cbarg; if (!complete) { bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); return; } bfa_cb_ioim_good_comp(ioim->bfa->bfad, ioim->dio); } static void __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete) { struct bfa_ioim_s *ioim = cbarg; struct bfi_ioim_rsp_s *m; u8 *snsinfo = NULL; u8 sns_len = 0; s32 residue = 0; if (!complete) { bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); return; } m = (struct bfi_ioim_rsp_s *) &ioim->iosp->comp_rspmsg; if (m->io_status == BFI_IOIM_STS_OK) { /* * setup sense information, if present */ if ((m->scsi_status == SCSI_STATUS_CHECK_CONDITION) && m->sns_len) { sns_len = m->sns_len; snsinfo = BFA_SNSINFO_FROM_TAG(ioim->fcpim->fcp, ioim->iotag); } /* * setup residue value correctly for normal completions */ if (m->resid_flags == FCP_RESID_UNDER) { residue = be32_to_cpu(m->residue); bfa_stats(ioim->itnim, iocomp_underrun); } if (m->resid_flags == FCP_RESID_OVER) { residue = be32_to_cpu(m->residue); residue = -residue; bfa_stats(ioim->itnim, iocomp_overrun); } } bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, m->io_status, m->scsi_status, sns_len, snsinfo, residue); } void bfa_fcpim_lunmask_rp_update(struct bfa_s *bfa, wwn_t lp_wwn, wwn_t rp_wwn, u16 rp_tag, u8 lp_tag) { struct bfa_lun_mask_s *lun_list; u8 i; if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return; lun_list = bfa_get_lun_mask_list(bfa); for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE) { if ((lun_list[i].lp_wwn == lp_wwn) && (lun_list[i].rp_wwn == rp_wwn)) { lun_list[i].rp_tag = rp_tag; lun_list[i].lp_tag = lp_tag; } } } } /* * set UA for all active luns in LM DB */ static void bfa_ioim_lm_set_ua(struct bfa_s *bfa) { struct bfa_lun_mask_s *lunm_list; int i; lunm_list = bfa_get_lun_mask_list(bfa); for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if (lunm_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE) continue; lunm_list[i].ua = BFA_IOIM_LM_UA_SET; } } bfa_status_t bfa_fcpim_lunmask_update(struct bfa_s *bfa, u32 update) { struct bfa_lunmask_cfg_s *lun_mask; bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return BFA_STATUS_FAILED; if (bfa_get_lun_mask_status(bfa) == update) return BFA_STATUS_NO_CHANGE; lun_mask = bfa_get_lun_mask(bfa); lun_mask->status = update; if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) bfa_ioim_lm_set_ua(bfa); return bfa_dconf_update(bfa); } bfa_status_t bfa_fcpim_lunmask_clear(struct bfa_s *bfa) { int i; struct bfa_lun_mask_s *lunm_list; bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return BFA_STATUS_FAILED; lunm_list = bfa_get_lun_mask_list(bfa); for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if (lunm_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE) { if (lunm_list[i].rp_tag != BFA_RPORT_TAG_INVALID) bfa_rport_unset_lunmask(bfa, BFA_RPORT_FROM_TAG(bfa, lunm_list[i].rp_tag)); } } memset(lunm_list, 0, sizeof(struct bfa_lun_mask_s) * MAX_LUN_MASK_CFG); return bfa_dconf_update(bfa); } bfa_status_t bfa_fcpim_lunmask_query(struct bfa_s *bfa, void *buf) { struct bfa_lunmask_cfg_s *lun_mask; bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return BFA_STATUS_FAILED; lun_mask = bfa_get_lun_mask(bfa); memcpy(buf, lun_mask, sizeof(struct bfa_lunmask_cfg_s)); return BFA_STATUS_OK; } bfa_status_t bfa_fcpim_lunmask_add(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, wwn_t rpwwn, struct scsi_lun lun) { struct bfa_lun_mask_s *lunm_list; struct bfa_rport_s *rp = NULL; int i, free_index = MAX_LUN_MASK_CFG + 1; struct bfa_fcs_lport_s *port = NULL; struct bfa_fcs_rport_s *rp_fcs; bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return BFA_STATUS_FAILED; port = bfa_fcs_lookup_port(&((struct bfad_s *)bfa->bfad)->bfa_fcs, vf_id, *pwwn); if (port) { *pwwn = port->port_cfg.pwwn; rp_fcs = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn); if (rp_fcs) rp = rp_fcs->bfa_rport; } lunm_list = bfa_get_lun_mask_list(bfa); /* if entry exists */ for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if (lunm_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE) free_index = i; if ((lunm_list[i].lp_wwn == *pwwn) && (lunm_list[i].rp_wwn == rpwwn) && (scsilun_to_int((struct scsi_lun *)&lunm_list[i].lun) == scsilun_to_int((struct scsi_lun *)&lun))) return BFA_STATUS_ENTRY_EXISTS; } if (free_index > MAX_LUN_MASK_CFG) return BFA_STATUS_MAX_ENTRY_REACHED; if (rp) { lunm_list[free_index].lp_tag = bfa_lps_get_tag_from_pid(bfa, rp->rport_info.local_pid); lunm_list[free_index].rp_tag = rp->rport_tag; } else { lunm_list[free_index].lp_tag = BFA_LP_TAG_INVALID; lunm_list[free_index].rp_tag = BFA_RPORT_TAG_INVALID; } lunm_list[free_index].lp_wwn = *pwwn; lunm_list[free_index].rp_wwn = rpwwn; lunm_list[free_index].lun = lun; lunm_list[free_index].state = BFA_IOIM_LUN_MASK_ACTIVE; /* set for all luns in this rp */ for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if ((lunm_list[i].lp_wwn == *pwwn) && (lunm_list[i].rp_wwn == rpwwn)) lunm_list[i].ua = BFA_IOIM_LM_UA_SET; } return bfa_dconf_update(bfa); } bfa_status_t bfa_fcpim_lunmask_delete(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, wwn_t rpwwn, struct scsi_lun lun) { struct bfa_lun_mask_s *lunm_list; struct bfa_rport_s *rp = NULL; struct bfa_fcs_lport_s *port = NULL; struct bfa_fcs_rport_s *rp_fcs; int i; /* in min cfg lunm_list could be NULL but no commands should run. */ if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) return BFA_STATUS_FAILED; bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); bfa_trc(bfa, *pwwn); bfa_trc(bfa, rpwwn); bfa_trc(bfa, scsilun_to_int((struct scsi_lun *)&lun)); if (*pwwn == 0) { port = bfa_fcs_lookup_port( &((struct bfad_s *)bfa->bfad)->bfa_fcs, vf_id, *pwwn); if (port) { *pwwn = port->port_cfg.pwwn; rp_fcs = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn); if (rp_fcs) rp = rp_fcs->bfa_rport; } } lunm_list = bfa_get_lun_mask_list(bfa); for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if ((lunm_list[i].lp_wwn == *pwwn) && (lunm_list[i].rp_wwn == rpwwn) && (scsilun_to_int((struct scsi_lun *)&lunm_list[i].lun) == scsilun_to_int((struct scsi_lun *)&lun))) { lunm_list[i].lp_wwn = 0; lunm_list[i].rp_wwn = 0; int_to_scsilun(0, &lunm_list[i].lun); lunm_list[i].state = BFA_IOIM_LUN_MASK_INACTIVE; if (lunm_list[i].rp_tag != BFA_RPORT_TAG_INVALID) { lunm_list[i].rp_tag = BFA_RPORT_TAG_INVALID; lunm_list[i].lp_tag = BFA_LP_TAG_INVALID; } return bfa_dconf_update(bfa); } } /* set for all luns in this rp */ for (i = 0; i < MAX_LUN_MASK_CFG; i++) { if ((lunm_list[i].lp_wwn == *pwwn) && (lunm_list[i].rp_wwn == rpwwn)) lunm_list[i].ua = BFA_IOIM_LM_UA_SET; } return BFA_STATUS_ENTRY_NOT_EXISTS; } static void __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete) { struct bfa_ioim_s *ioim = cbarg; if (!complete) { bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); return; } bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_ABORTED, 0, 0, NULL, 0); } static void __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete) { struct bfa_ioim_s *ioim = cbarg; bfa_stats(ioim->itnim, path_tov_expired); if (!complete) { bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); return; } bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_PATHTOV, 0, 0, NULL, 0); } static void __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete) { struct bfa_ioim_s *ioim = cbarg; if (!complete) { bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); return; } bfa_cb_ioim_abort(ioim->bfa->bfad, ioim->dio); } static void bfa_ioim_sgpg_alloced(void *cbarg) { struct bfa_ioim_s *ioim = cbarg; ioim->nsgpgs = BFA_SGPG_NPAGE(ioim->nsges); list_splice_tail_init(&ioim->iosp->sgpg_wqe.sgpg_q, &ioim->sgpg_q); ioim->sgpg = bfa_q_first(&ioim->sgpg_q); bfa_sm_send_event(ioim, BFA_IOIM_SM_SGALLOCED); } /* * Send I/O request to firmware. */ static bfa_boolean_t bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim) { struct bfa_itnim_s *itnim = ioim->itnim; struct bfi_ioim_req_s *m; static struct fcp_cmnd_s cmnd_z0 = { { { 0 } } }; struct bfi_sge_s *sge, *sgpge; u32 pgdlen = 0; u32 fcp_dl; u64 addr; struct scatterlist *sg; struct bfa_sgpg_s *sgpg; struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio; u32 i, sge_id, pgcumsz; enum dma_data_direction dmadir; /* * check for room in queue to send request now */ m = bfa_reqq_next(ioim->bfa, ioim->reqq); if (!m) { bfa_stats(ioim->itnim, qwait); bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); return BFA_FALSE; } /* * build i/o request message next */ m->io_tag = cpu_to_be16(ioim->iotag); m->rport_hdl = ioim->itnim->rport->fw_handle; m->io_timeout = 0; sge = &m->sges[0]; sgpg = ioim->sgpg; sge_id = 0; sgpge = NULL; pgcumsz = 0; scsi_for_each_sg(cmnd, sg, ioim->nsges, i) { if (i == 0) { /* build inline IO SG element */ addr = bfa_sgaddr_le(sg_dma_address(sg)); sge->sga = *(union bfi_addr_u *) &addr; pgdlen = sg_dma_len(sg); sge->sg_len = pgdlen; sge->flags = (ioim->nsges > BFI_SGE_INLINE) ? BFI_SGE_DATA_CPL : BFI_SGE_DATA_LAST; bfa_sge_to_be(sge); sge++; } else { if (sge_id == 0) sgpge = sgpg->sgpg->sges; addr = bfa_sgaddr_le(sg_dma_address(sg)); sgpge->sga = *(union bfi_addr_u *) &addr; sgpge->sg_len = sg_dma_len(sg); pgcumsz += sgpge->sg_len; /* set flags */ if (i < (ioim->nsges - 1) && sge_id < (BFI_SGPG_DATA_SGES - 1)) sgpge->flags = BFI_SGE_DATA; else if (i < (ioim->nsges - 1)) sgpge->flags = BFI_SGE_DATA_CPL; else sgpge->flags = BFI_SGE_DATA_LAST; bfa_sge_to_le(sgpge); sgpge++; if (i == (ioim->nsges - 1)) { sgpge->flags = BFI_SGE_PGDLEN; sgpge->sga.a32.addr_lo = 0; sgpge->sga.a32.addr_hi = 0; sgpge->sg_len = pgcumsz; bfa_sge_to_le(sgpge); } else if (++sge_id == BFI_SGPG_DATA_SGES) { sgpg = (struct bfa_sgpg_s *) bfa_q_next(sgpg); sgpge->flags = BFI_SGE_LINK; sgpge->sga = sgpg->sgpg_pa; sgpge->sg_len = pgcumsz; bfa_sge_to_le(sgpge); sge_id = 0; pgcumsz = 0; } } } if (ioim->nsges > BFI_SGE_INLINE) { sge->sga = ioim->sgpg->sgpg_pa; } else { sge->sga.a32.addr_lo = 0; sge->sga.a32.addr_hi = 0; } sge->sg_len = pgdlen; sge->flags = BFI_SGE_PGDLEN; bfa_sge_to_be(sge); /* * set up I/O command parameters */ m->cmnd = cmnd_z0; int_to_scsilun(cmnd->device->lun, &m->cmnd.lun); dmadir = cmnd->sc_data_direction; if (dmadir == DMA_TO_DEVICE) m->cmnd.iodir = FCP_IODIR_WRITE; else if (dmadir == DMA_FROM_DEVICE) m->cmnd.iodir = FCP_IODIR_READ; else m->cmnd.iodir = FCP_IODIR_NONE; m->cmnd.cdb = *(struct scsi_cdb_s *) cmnd->cmnd; fcp_dl = scsi_bufflen(cmnd); m->cmnd.fcp_dl = cpu_to_be32(fcp_dl); /* * set up I/O message header */ switch (m->cmnd.iodir) { case FCP_IODIR_READ: bfi_h2i_set(m->mh, BFI_MC_IOIM_READ, 0, bfa_fn_lpu(ioim->bfa)); bfa_stats(itnim, input_reqs); ioim->itnim->stats.rd_throughput += fcp_dl; break; case FCP_IODIR_WRITE: bfi_h2i_set(m->mh, BFI_MC_IOIM_WRITE, 0, bfa_fn_lpu(ioim->bfa)); bfa_stats(itnim, output_reqs); ioim->itnim->stats.wr_throughput += fcp_dl; break; case FCP_IODIR_RW: bfa_stats(itnim, input_reqs); bfa_stats(itnim, output_reqs); default: bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_fn_lpu(ioim->bfa)); } if (itnim->seq_rec || (scsi_bufflen(cmnd) & (sizeof(u32) - 1))) bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_fn_lpu(ioim->bfa)); /* * queue I/O message to firmware */ bfa_reqq_produce(ioim->bfa, ioim->reqq, m->mh); return BFA_TRUE; } /* * Setup any additional SG pages needed.Inline SG element is setup * at queuing time. */ static bfa_boolean_t bfa_ioim_sgpg_alloc(struct bfa_ioim_s *ioim) { u16 nsgpgs; WARN_ON(ioim->nsges <= BFI_SGE_INLINE); /* * allocate SG pages needed */ nsgpgs = BFA_SGPG_NPAGE(ioim->nsges); if (!nsgpgs) return BFA_TRUE; if (bfa_sgpg_malloc(ioim->bfa, &ioim->sgpg_q, nsgpgs) != BFA_STATUS_OK) { bfa_sgpg_wait(ioim->bfa, &ioim->iosp->sgpg_wqe, nsgpgs); return BFA_FALSE; } ioim->nsgpgs = nsgpgs; ioim->sgpg = bfa_q_first(&ioim->sgpg_q); return BFA_TRUE; } /* * Send I/O abort request to firmware. */ static bfa_boolean_t bfa_ioim_send_abort(struct bfa_ioim_s *ioim) { struct bfi_ioim_abort_req_s *m; enum bfi_ioim_h2i msgop; /* * check for room in queue to send request now */ m = bfa_reqq_next(ioim->bfa, ioim->reqq); if (!m) return BFA_FALSE; /* * build i/o request message next */ if (ioim->iosp->abort_explicit) msgop = BFI_IOIM_H2I_IOABORT_REQ; else msgop = BFI_IOIM_H2I_IOCLEANUP_REQ; bfi_h2i_set(m->mh, BFI_MC_IOIM, msgop, bfa_fn_lpu(ioim->bfa)); m->io_tag = cpu_to_be16(ioim->iotag); m->abort_tag = ++ioim->abort_tag; /* * queue I/O message to firmware */ bfa_reqq_produce(ioim->bfa, ioim->reqq, m->mh); return BFA_TRUE; } /* * Call to resume any I/O requests waiting for room in request queue. */ static void bfa_ioim_qresume(void *cbarg) { struct bfa_ioim_s *ioim = cbarg; bfa_stats(ioim->itnim, qresumes); bfa_sm_send_event(ioim, BFA_IOIM_SM_QRESUME); } static void bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim) { /* * Move IO from itnim queue to fcpim global queue since itnim will be * freed. */ list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); if (!ioim->iosp->tskim) { if (ioim->fcpim->delay_comp && ioim->itnim->iotov_active) { bfa_cb_dequeue(&ioim->hcb_qe); list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->itnim->delay_comp_q); } bfa_itnim_iodone(ioim->itnim); } else bfa_wc_down(&ioim->iosp->tskim->wc); } static bfa_boolean_t bfa_ioim_is_abortable(struct bfa_ioim_s *ioim) { if ((bfa_sm_cmp_state(ioim, bfa_ioim_sm_uninit) && (!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim))) || (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort)) || (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort_qfull)) || (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb)) || (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb_free)) || (bfa_sm_cmp_state(ioim, bfa_ioim_sm_resfree))) return BFA_FALSE; return BFA_TRUE; } void bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, bfa_boolean_t iotov) { /* * If path tov timer expired, failback with PATHTOV status - these * IO requests are not normally retried by IO stack. * * Otherwise device cameback online and fail it with normal failed * status so that IO stack retries these failed IO requests. */ if (iotov) ioim->io_cbfn = __bfa_cb_ioim_pathtov; else { ioim->io_cbfn = __bfa_cb_ioim_failed; bfa_stats(ioim->itnim, iocom_nexus_abort); } bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); /* * Move IO to fcpim global queue since itnim will be * freed. */ list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); } /* * Memory allocation and initialization. */ void bfa_ioim_attach(struct bfa_fcpim_s *fcpim) { struct bfa_ioim_s *ioim; struct bfa_fcp_mod_s *fcp = fcpim->fcp; struct bfa_ioim_sp_s *iosp; u16 i; /* * claim memory first */ ioim = (struct bfa_ioim_s *) bfa_mem_kva_curp(fcp); fcpim->ioim_arr = ioim; bfa_mem_kva_curp(fcp) = (u8 *) (ioim + fcpim->fcp->num_ioim_reqs); iosp = (struct bfa_ioim_sp_s *) bfa_mem_kva_curp(fcp); fcpim->ioim_sp_arr = iosp; bfa_mem_kva_curp(fcp) = (u8 *) (iosp + fcpim->fcp->num_ioim_reqs); /* * Initialize ioim free queues */ INIT_LIST_HEAD(&fcpim->ioim_resfree_q); INIT_LIST_HEAD(&fcpim->ioim_comp_q); for (i = 0; i < fcpim->fcp->num_ioim_reqs; i++, ioim++, iosp++) { /* * initialize IOIM */ memset(ioim, 0, sizeof(struct bfa_ioim_s)); ioim->iotag = i; ioim->bfa = fcpim->bfa; ioim->fcpim = fcpim; ioim->iosp = iosp; INIT_LIST_HEAD(&ioim->sgpg_q); bfa_reqq_winit(&ioim->iosp->reqq_wait, bfa_ioim_qresume, ioim); bfa_sgpg_winit(&ioim->iosp->sgpg_wqe, bfa_ioim_sgpg_alloced, ioim); bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); } } void bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m; struct bfa_ioim_s *ioim; u16 iotag; enum bfa_ioim_event evt = BFA_IOIM_SM_COMP; iotag = be16_to_cpu(rsp->io_tag); ioim = BFA_IOIM_FROM_TAG(fcpim, iotag); WARN_ON(ioim->iotag != iotag); bfa_trc(ioim->bfa, ioim->iotag); bfa_trc(ioim->bfa, rsp->io_status); bfa_trc(ioim->bfa, rsp->reuse_io_tag); if (bfa_sm_cmp_state(ioim, bfa_ioim_sm_active)) ioim->iosp->comp_rspmsg = *m; switch (rsp->io_status) { case BFI_IOIM_STS_OK: bfa_stats(ioim->itnim, iocomp_ok); if (rsp->reuse_io_tag == 0) evt = BFA_IOIM_SM_DONE; else evt = BFA_IOIM_SM_COMP; break; case BFI_IOIM_STS_TIMEDOUT: bfa_stats(ioim->itnim, iocomp_timedout); case BFI_IOIM_STS_ABORTED: rsp->io_status = BFI_IOIM_STS_ABORTED; bfa_stats(ioim->itnim, iocomp_aborted); if (rsp->reuse_io_tag == 0) evt = BFA_IOIM_SM_DONE; else evt = BFA_IOIM_SM_COMP; break; case BFI_IOIM_STS_PROTO_ERR: bfa_stats(ioim->itnim, iocom_proto_err); WARN_ON(!rsp->reuse_io_tag); evt = BFA_IOIM_SM_COMP; break; case BFI_IOIM_STS_SQER_NEEDED: bfa_stats(ioim->itnim, iocom_sqer_needed); WARN_ON(rsp->reuse_io_tag != 0); evt = BFA_IOIM_SM_SQRETRY; break; case BFI_IOIM_STS_RES_FREE: bfa_stats(ioim->itnim, iocom_res_free); evt = BFA_IOIM_SM_FREE; break; case BFI_IOIM_STS_HOST_ABORTED: bfa_stats(ioim->itnim, iocom_hostabrts); if (rsp->abort_tag != ioim->abort_tag) { bfa_trc(ioim->bfa, rsp->abort_tag); bfa_trc(ioim->bfa, ioim->abort_tag); return; } if (rsp->reuse_io_tag) evt = BFA_IOIM_SM_ABORT_COMP; else evt = BFA_IOIM_SM_ABORT_DONE; break; case BFI_IOIM_STS_UTAG: bfa_stats(ioim->itnim, iocom_utags); evt = BFA_IOIM_SM_COMP_UTAG; break; default: WARN_ON(1); } bfa_sm_send_event(ioim, evt); } void bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *m) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m; struct bfa_ioim_s *ioim; u16 iotag; iotag = be16_to_cpu(rsp->io_tag); ioim = BFA_IOIM_FROM_TAG(fcpim, iotag); WARN_ON(ioim->iotag != iotag); bfa_ioim_cb_profile_comp(fcpim, ioim); bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD); } /* * Called by itnim to clean up IO while going offline. */ void bfa_ioim_cleanup(struct bfa_ioim_s *ioim) { bfa_trc(ioim->bfa, ioim->iotag); bfa_stats(ioim->itnim, io_cleanups); ioim->iosp->tskim = NULL; bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP); } void bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, struct bfa_tskim_s *tskim) { bfa_trc(ioim->bfa, ioim->iotag); bfa_stats(ioim->itnim, io_tmaborts); ioim->iosp->tskim = tskim; bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP); } /* * IOC failure handling. */ void bfa_ioim_iocdisable(struct bfa_ioim_s *ioim) { bfa_trc(ioim->bfa, ioim->iotag); bfa_stats(ioim->itnim, io_iocdowns); bfa_sm_send_event(ioim, BFA_IOIM_SM_HWFAIL); } /* * IO offline TOV popped. Fail the pending IO. */ void bfa_ioim_tov(struct bfa_ioim_s *ioim) { bfa_trc(ioim->bfa, ioim->iotag); bfa_sm_send_event(ioim, BFA_IOIM_SM_IOTOV); } /* * Allocate IOIM resource for initiator mode I/O request. */ struct bfa_ioim_s * bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio, struct bfa_itnim_s *itnim, u16 nsges) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfa_ioim_s *ioim; struct bfa_iotag_s *iotag = NULL; /* * alocate IOIM resource */ bfa_q_deq(&fcpim->fcp->iotag_ioim_free_q, &iotag); if (!iotag) { bfa_stats(itnim, no_iotags); return NULL; } ioim = BFA_IOIM_FROM_TAG(fcpim, iotag->tag); ioim->dio = dio; ioim->itnim = itnim; ioim->nsges = nsges; ioim->nsgpgs = 0; bfa_stats(itnim, total_ios); fcpim->ios_active++; list_add_tail(&ioim->qe, &itnim->io_q); return ioim; } void bfa_ioim_free(struct bfa_ioim_s *ioim) { struct bfa_fcpim_s *fcpim = ioim->fcpim; struct bfa_iotag_s *iotag; if (ioim->nsgpgs > 0) bfa_sgpg_mfree(ioim->bfa, &ioim->sgpg_q, ioim->nsgpgs); bfa_stats(ioim->itnim, io_comps); fcpim->ios_active--; ioim->iotag &= BFA_IOIM_IOTAG_MASK; WARN_ON(!(ioim->iotag < (fcpim->fcp->num_ioim_reqs + fcpim->fcp->num_fwtio_reqs))); iotag = BFA_IOTAG_FROM_TAG(fcpim->fcp, ioim->iotag); if (ioim->iotag < fcpim->fcp->num_ioim_reqs) list_add_tail(&iotag->qe, &fcpim->fcp->iotag_ioim_free_q); else list_add_tail(&iotag->qe, &fcpim->fcp->iotag_tio_free_q); list_del(&ioim->qe); } void bfa_ioim_start(struct bfa_ioim_s *ioim) { bfa_ioim_cb_profile_start(ioim->fcpim, ioim); /* * Obtain the queue over which this request has to be issued */ ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ? BFA_FALSE : bfa_itnim_get_reqq(ioim); bfa_sm_send_event(ioim, BFA_IOIM_SM_START); } /* * Driver I/O abort request. */ bfa_status_t bfa_ioim_abort(struct bfa_ioim_s *ioim) { bfa_trc(ioim->bfa, ioim->iotag); if (!bfa_ioim_is_abortable(ioim)) return BFA_STATUS_FAILED; bfa_stats(ioim->itnim, io_aborts); bfa_sm_send_event(ioim, BFA_IOIM_SM_ABORT); return BFA_STATUS_OK; } /* * BFA TSKIM state machine functions */ /* * Task management command beginning state. */ static void bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_START: bfa_sm_set_state(tskim, bfa_tskim_sm_active); bfa_tskim_gather_ios(tskim); /* * If device is offline, do not send TM on wire. Just cleanup * any pending IO requests and complete TM request. */ if (!bfa_itnim_is_online(tskim->itnim)) { bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); tskim->tsk_status = BFI_TSKIM_STS_OK; bfa_tskim_cleanup_ios(tskim); return; } if (!bfa_tskim_send(tskim)) { bfa_sm_set_state(tskim, bfa_tskim_sm_qfull); bfa_stats(tskim->itnim, tm_qwait); bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, &tskim->reqq_wait); } break; default: bfa_sm_fault(tskim->bfa, event); } } /* * TM command is active, awaiting completion from firmware to * cleanup IO requests in TM scope. */ static void bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_DONE: bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); bfa_tskim_cleanup_ios(tskim); break; case BFA_TSKIM_SM_CLEANUP: bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); if (!bfa_tskim_send_abort(tskim)) { bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup_qfull); bfa_stats(tskim->itnim, tm_qwait); bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, &tskim->reqq_wait); } break; case BFA_TSKIM_SM_HWFAIL: bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); bfa_tskim_iocdisable_ios(tskim); bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); break; default: bfa_sm_fault(tskim->bfa, event); } } /* * An active TM is being cleaned up since ITN is offline. Awaiting cleanup * completion event from firmware. */ static void bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_DONE: /* * Ignore and wait for ABORT completion from firmware. */ break; case BFA_TSKIM_SM_UTAG: case BFA_TSKIM_SM_CLEANUP_DONE: bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); bfa_tskim_cleanup_ios(tskim); break; case BFA_TSKIM_SM_HWFAIL: bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); bfa_tskim_iocdisable_ios(tskim); bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); break; default: bfa_sm_fault(tskim->bfa, event); } } static void bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_IOS_DONE: bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); bfa_tskim_qcomp(tskim, __bfa_cb_tskim_done); break; case BFA_TSKIM_SM_CLEANUP: /* * Ignore, TM command completed on wire. * Notify TM conmpletion on IO cleanup completion. */ break; case BFA_TSKIM_SM_HWFAIL: bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); bfa_tskim_iocdisable_ios(tskim); bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); break; default: bfa_sm_fault(tskim->bfa, event); } } /* * Task management command is waiting for room in request CQ */ static void bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_QRESUME: bfa_sm_set_state(tskim, bfa_tskim_sm_active); bfa_tskim_send(tskim); break; case BFA_TSKIM_SM_CLEANUP: /* * No need to send TM on wire since ITN is offline. */ bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); bfa_reqq_wcancel(&tskim->reqq_wait); bfa_tskim_cleanup_ios(tskim); break; case BFA_TSKIM_SM_HWFAIL: bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); bfa_reqq_wcancel(&tskim->reqq_wait); bfa_tskim_iocdisable_ios(tskim); bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); break; default: bfa_sm_fault(tskim->bfa, event); } } /* * Task management command is active, awaiting for room in request CQ * to send clean up request. */ static void bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_DONE: bfa_reqq_wcancel(&tskim->reqq_wait); /* * Fall through !!! */ case BFA_TSKIM_SM_QRESUME: bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); bfa_tskim_send_abort(tskim); break; case BFA_TSKIM_SM_HWFAIL: bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); bfa_reqq_wcancel(&tskim->reqq_wait); bfa_tskim_iocdisable_ios(tskim); bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); break; default: bfa_sm_fault(tskim->bfa, event); } } /* * BFA callback is pending */ static void bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) { bfa_trc(tskim->bfa, tskim->tsk_tag << 16 | event); switch (event) { case BFA_TSKIM_SM_HCB: bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); bfa_tskim_free(tskim); break; case BFA_TSKIM_SM_CLEANUP: bfa_tskim_notify_comp(tskim); break; case BFA_TSKIM_SM_HWFAIL: break; default: bfa_sm_fault(tskim->bfa, event); } } static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete) { struct bfa_tskim_s *tskim = cbarg; if (!complete) { bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); return; } bfa_stats(tskim->itnim, tm_success); bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, tskim->tsk_status); } static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete) { struct bfa_tskim_s *tskim = cbarg; if (!complete) { bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); return; } bfa_stats(tskim->itnim, tm_failures); bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, BFI_TSKIM_STS_FAILED); } static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim, struct scsi_lun lun) { switch (tskim->tm_cmnd) { case FCP_TM_TARGET_RESET: return BFA_TRUE; case FCP_TM_ABORT_TASK_SET: case FCP_TM_CLEAR_TASK_SET: case FCP_TM_LUN_RESET: case FCP_TM_CLEAR_ACA: return !memcmp(&tskim->lun, &lun, sizeof(lun)); default: WARN_ON(1); } return BFA_FALSE; } /* * Gather affected IO requests and task management commands. */ static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim) { struct bfa_itnim_s *itnim = tskim->itnim; struct bfa_ioim_s *ioim; struct list_head *qe, *qen; struct scsi_cmnd *cmnd; struct scsi_lun scsilun; INIT_LIST_HEAD(&tskim->io_q); /* * Gather any active IO requests first. */ list_for_each_safe(qe, qen, &itnim->io_q) { ioim = (struct bfa_ioim_s *) qe; cmnd = (struct scsi_cmnd *) ioim->dio; int_to_scsilun(cmnd->device->lun, &scsilun); if (bfa_tskim_match_scope(tskim, scsilun)) { list_del(&ioim->qe); list_add_tail(&ioim->qe, &tskim->io_q); } } /* * Failback any pending IO requests immediately. */ list_for_each_safe(qe, qen, &itnim->pending_q) { ioim = (struct bfa_ioim_s *) qe; cmnd = (struct scsi_cmnd *) ioim->dio; int_to_scsilun(cmnd->device->lun, &scsilun); if (bfa_tskim_match_scope(tskim, scsilun)) { list_del(&ioim->qe); list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); bfa_ioim_tov(ioim); } } } /* * IO cleanup completion */ static void bfa_tskim_cleanp_comp(void *tskim_cbarg) { struct bfa_tskim_s *tskim = tskim_cbarg; bfa_stats(tskim->itnim, tm_io_comps); bfa_sm_send_event(tskim, BFA_TSKIM_SM_IOS_DONE); } /* * Gather affected IO requests and task management commands. */ static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim) { struct bfa_ioim_s *ioim; struct list_head *qe, *qen; bfa_wc_init(&tskim->wc, bfa_tskim_cleanp_comp, tskim); list_for_each_safe(qe, qen, &tskim->io_q) { ioim = (struct bfa_ioim_s *) qe; bfa_wc_up(&tskim->wc); bfa_ioim_cleanup_tm(ioim, tskim); } bfa_wc_wait(&tskim->wc); } /* * Send task management request to firmware. */ static bfa_boolean_t bfa_tskim_send(struct bfa_tskim_s *tskim) { struct bfa_itnim_s *itnim = tskim->itnim; struct bfi_tskim_req_s *m; /* * check for room in queue to send request now */ m = bfa_reqq_next(tskim->bfa, itnim->reqq); if (!m) return BFA_FALSE; /* * build i/o request message next */ bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_TM_REQ, bfa_fn_lpu(tskim->bfa)); m->tsk_tag = cpu_to_be16(tskim->tsk_tag); m->itn_fhdl = tskim->itnim->rport->fw_handle; m->t_secs = tskim->tsecs; m->lun = tskim->lun; m->tm_flags = tskim->tm_cmnd; /* * queue I/O message to firmware */ bfa_reqq_produce(tskim->bfa, itnim->reqq, m->mh); return BFA_TRUE; } /* * Send abort request to cleanup an active TM to firmware. */ static bfa_boolean_t bfa_tskim_send_abort(struct bfa_tskim_s *tskim) { struct bfa_itnim_s *itnim = tskim->itnim; struct bfi_tskim_abortreq_s *m; /* * check for room in queue to send request now */ m = bfa_reqq_next(tskim->bfa, itnim->reqq); if (!m) return BFA_FALSE; /* * build i/o request message next */ bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_ABORT_REQ, bfa_fn_lpu(tskim->bfa)); m->tsk_tag = cpu_to_be16(tskim->tsk_tag); /* * queue I/O message to firmware */ bfa_reqq_produce(tskim->bfa, itnim->reqq, m->mh); return BFA_TRUE; } /* * Call to resume task management cmnd waiting for room in request queue. */ static void bfa_tskim_qresume(void *cbarg) { struct bfa_tskim_s *tskim = cbarg; bfa_stats(tskim->itnim, tm_qresumes); bfa_sm_send_event(tskim, BFA_TSKIM_SM_QRESUME); } /* * Cleanup IOs associated with a task mangement command on IOC failures. */ static void bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim) { struct bfa_ioim_s *ioim; struct list_head *qe, *qen; list_for_each_safe(qe, qen, &tskim->io_q) { ioim = (struct bfa_ioim_s *) qe; bfa_ioim_iocdisable(ioim); } } /* * Notification on completions from related ioim. */ void bfa_tskim_iodone(struct bfa_tskim_s *tskim) { bfa_wc_down(&tskim->wc); } /* * Handle IOC h/w failure notification from itnim. */ void bfa_tskim_iocdisable(struct bfa_tskim_s *tskim) { tskim->notify = BFA_FALSE; bfa_stats(tskim->itnim, tm_iocdowns); bfa_sm_send_event(tskim, BFA_TSKIM_SM_HWFAIL); } /* * Cleanup TM command and associated IOs as part of ITNIM offline. */ void bfa_tskim_cleanup(struct bfa_tskim_s *tskim) { tskim->notify = BFA_TRUE; bfa_stats(tskim->itnim, tm_cleanups); bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP); } /* * Memory allocation and initialization. */ void bfa_tskim_attach(struct bfa_fcpim_s *fcpim) { struct bfa_tskim_s *tskim; struct bfa_fcp_mod_s *fcp = fcpim->fcp; u16 i; INIT_LIST_HEAD(&fcpim->tskim_free_q); INIT_LIST_HEAD(&fcpim->tskim_unused_q); tskim = (struct bfa_tskim_s *) bfa_mem_kva_curp(fcp); fcpim->tskim_arr = tskim; for (i = 0; i < fcpim->num_tskim_reqs; i++, tskim++) { /* * initialize TSKIM */ memset(tskim, 0, sizeof(struct bfa_tskim_s)); tskim->tsk_tag = i; tskim->bfa = fcpim->bfa; tskim->fcpim = fcpim; tskim->notify = BFA_FALSE; bfa_reqq_winit(&tskim->reqq_wait, bfa_tskim_qresume, tskim); bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); list_add_tail(&tskim->qe, &fcpim->tskim_free_q); } bfa_mem_kva_curp(fcp) = (u8 *) tskim; } void bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfi_tskim_rsp_s *rsp = (struct bfi_tskim_rsp_s *) m; struct bfa_tskim_s *tskim; u16 tsk_tag = be16_to_cpu(rsp->tsk_tag); tskim = BFA_TSKIM_FROM_TAG(fcpim, tsk_tag); WARN_ON(tskim->tsk_tag != tsk_tag); tskim->tsk_status = rsp->tsk_status; /* * Firmware sends BFI_TSKIM_STS_ABORTED status for abort * requests. All other statuses are for normal completions. */ if (rsp->tsk_status == BFI_TSKIM_STS_ABORTED) { bfa_stats(tskim->itnim, tm_cleanup_comps); bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP_DONE); } else if (rsp->tsk_status == BFI_TSKIM_STS_UTAG) { bfa_sm_send_event(tskim, BFA_TSKIM_SM_UTAG); } else { bfa_stats(tskim->itnim, tm_fw_rsps); bfa_sm_send_event(tskim, BFA_TSKIM_SM_DONE); } } struct bfa_tskim_s * bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfa_tskim_s *tskim; bfa_q_deq(&fcpim->tskim_free_q, &tskim); if (tskim) tskim->dtsk = dtsk; return tskim; } void bfa_tskim_free(struct bfa_tskim_s *tskim) { WARN_ON(!bfa_q_is_on_q_func(&tskim->itnim->tsk_q, &tskim->qe)); list_del(&tskim->qe); list_add_tail(&tskim->qe, &tskim->fcpim->tskim_free_q); } /* * Start a task management command. * * @param[in] tskim BFA task management command instance * @param[in] itnim i-t nexus for the task management command * @param[in] lun lun, if applicable * @param[in] tm_cmnd Task management command code. * @param[in] t_secs Timeout in seconds * * @return None. */ void bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, struct scsi_lun lun, enum fcp_tm_cmnd tm_cmnd, u8 tsecs) { tskim->itnim = itnim; tskim->lun = lun; tskim->tm_cmnd = tm_cmnd; tskim->tsecs = tsecs; tskim->notify = BFA_FALSE; bfa_stats(itnim, tm_cmnds); list_add_tail(&tskim->qe, &itnim->tsk_q); bfa_sm_send_event(tskim, BFA_TSKIM_SM_START); } void bfa_tskim_res_recfg(struct bfa_s *bfa, u16 num_tskim_fw) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct list_head *qe; int i; for (i = 0; i < (fcpim->num_tskim_reqs - num_tskim_fw); i++) { bfa_q_deq_tail(&fcpim->tskim_free_q, &qe); list_add_tail(qe, &fcpim->tskim_unused_q); } } void bfa_fcp_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *minfo, struct bfa_s *bfa) { struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); struct bfa_mem_kva_s *fcp_kva = BFA_MEM_FCP_KVA(bfa); struct bfa_mem_dma_s *seg_ptr; u16 nsegs, idx, per_seg_ios, num_io_req; u32 km_len = 0; /* * ZERO for num_ioim_reqs and num_fwtio_reqs is allowed config value. * So if the values are non zero, adjust them appropriately. */ if (cfg->fwcfg.num_ioim_reqs && cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN) cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN; else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX) cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX; if (cfg->fwcfg.num_fwtio_reqs > BFA_FWTIO_MAX) cfg->fwcfg.num_fwtio_reqs = BFA_FWTIO_MAX; num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs); if (num_io_req > BFA_IO_MAX) { if (cfg->fwcfg.num_ioim_reqs && cfg->fwcfg.num_fwtio_reqs) { cfg->fwcfg.num_ioim_reqs = BFA_IO_MAX/2; cfg->fwcfg.num_fwtio_reqs = BFA_IO_MAX/2; } else if (cfg->fwcfg.num_fwtio_reqs) cfg->fwcfg.num_fwtio_reqs = BFA_FWTIO_MAX; else cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX; } bfa_fcpim_meminfo(cfg, &km_len); num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs); km_len += num_io_req * sizeof(struct bfa_iotag_s); km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itn_s); /* dma memory */ nsegs = BFI_MEM_DMA_NSEGS(num_io_req, BFI_IOIM_SNSLEN); per_seg_ios = BFI_MEM_NREQS_SEG(BFI_IOIM_SNSLEN); bfa_mem_dma_seg_iter(fcp, seg_ptr, nsegs, idx) { if (num_io_req >= per_seg_ios) { num_io_req -= per_seg_ios; bfa_mem_dma_setup(minfo, seg_ptr, per_seg_ios * BFI_IOIM_SNSLEN); } else bfa_mem_dma_setup(minfo, seg_ptr, num_io_req * BFI_IOIM_SNSLEN); } /* kva memory */ bfa_mem_kva_setup(minfo, fcp_kva, km_len); } void bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, struct bfa_pcidev_s *pcidev) { struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); struct bfa_mem_dma_s *seg_ptr; u16 idx, nsegs, num_io_req; fcp->max_ioim_reqs = cfg->fwcfg.num_ioim_reqs; fcp->num_ioim_reqs = cfg->fwcfg.num_ioim_reqs; fcp->num_fwtio_reqs = cfg->fwcfg.num_fwtio_reqs; fcp->num_itns = cfg->fwcfg.num_rports; fcp->bfa = bfa; /* * Setup the pool of snsbase addr's, that is passed to fw as * part of bfi_iocfc_cfg_s. */ num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs); nsegs = BFI_MEM_DMA_NSEGS(num_io_req, BFI_IOIM_SNSLEN); bfa_mem_dma_seg_iter(fcp, seg_ptr, nsegs, idx) { if (!bfa_mem_dma_virt(seg_ptr)) break; fcp->snsbase[idx].pa = bfa_mem_dma_phys(seg_ptr); fcp->snsbase[idx].kva = bfa_mem_dma_virt(seg_ptr); bfa_iocfc_set_snsbase(bfa, idx, fcp->snsbase[idx].pa); } fcp->throttle_update_required = 1; bfa_fcpim_attach(fcp, bfad, cfg, pcidev); bfa_iotag_attach(fcp); fcp->itn_arr = (struct bfa_itn_s *) bfa_mem_kva_curp(fcp); bfa_mem_kva_curp(fcp) = (u8 *)fcp->itn_arr + (fcp->num_itns * sizeof(struct bfa_itn_s)); memset(fcp->itn_arr, 0, (fcp->num_itns * sizeof(struct bfa_itn_s))); } void bfa_fcp_iocdisable(struct bfa_s *bfa) { struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); bfa_fcpim_iocdisable(fcp); } void bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw, u16 max_ioim_fw) { struct bfa_fcp_mod_s *mod = BFA_FCP_MOD(bfa); struct list_head *qe; int i; /* Update io throttle value only once during driver load time */ if (!mod->throttle_update_required) return; for (i = 0; i < (mod->num_ioim_reqs - num_ioim_fw); i++) { bfa_q_deq_tail(&mod->iotag_ioim_free_q, &qe); list_add_tail(qe, &mod->iotag_unused_q); } if (mod->num_ioim_reqs != num_ioim_fw) { bfa_trc(bfa, mod->num_ioim_reqs); bfa_trc(bfa, num_ioim_fw); } mod->max_ioim_reqs = max_ioim_fw; mod->num_ioim_reqs = num_ioim_fw; mod->throttle_update_required = 0; } void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)) { struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); struct bfa_itn_s *itn; itn = BFA_ITN_FROM_TAG(fcp, rport->rport_tag); itn->isr = isr; } /* * Itn interrupt processing. */ void bfa_itn_isr(struct bfa_s *bfa, struct bfi_msg_s *m) { struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); union bfi_itn_i2h_msg_u msg; struct bfa_itn_s *itn; msg.msg = m; itn = BFA_ITN_FROM_TAG(fcp, msg.create_rsp->bfa_handle); if (itn->isr) itn->isr(bfa, m); else WARN_ON(1); } void bfa_iotag_attach(struct bfa_fcp_mod_s *fcp) { struct bfa_iotag_s *iotag; u16 num_io_req, i; iotag = (struct bfa_iotag_s *) bfa_mem_kva_curp(fcp); fcp->iotag_arr = iotag; INIT_LIST_HEAD(&fcp->iotag_ioim_free_q); INIT_LIST_HEAD(&fcp->iotag_tio_free_q); INIT_LIST_HEAD(&fcp->iotag_unused_q); num_io_req = fcp->num_ioim_reqs + fcp->num_fwtio_reqs; for (i = 0; i < num_io_req; i++, iotag++) { memset(iotag, 0, sizeof(struct bfa_iotag_s)); iotag->tag = i; if (i < fcp->num_ioim_reqs) list_add_tail(&iotag->qe, &fcp->iotag_ioim_free_q); else list_add_tail(&iotag->qe, &fcp->iotag_tio_free_q); } bfa_mem_kva_curp(fcp) = (u8 *) iotag; } /** * To send config req, first try to use throttle value from flash * If 0, then use driver parameter * We need to use min(flash_val, drv_val) because * memory allocation was done based on this cfg'd value */ u16 bfa_fcpim_get_throttle_cfg(struct bfa_s *bfa, u16 drv_cfg_param) { u16 tmp; struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); /* * If throttle value from flash is already in effect after driver is * loaded then until next load, always return current value instead * of actual flash value */ if (!fcp->throttle_update_required) return (u16)fcp->num_ioim_reqs; tmp = bfa_dconf_read_data_valid(bfa) ? bfa_fcpim_read_throttle(bfa) : 0; if (!tmp || (tmp > drv_cfg_param)) tmp = drv_cfg_param; return tmp; } bfa_status_t bfa_fcpim_write_throttle(struct bfa_s *bfa, u16 value) { if (!bfa_dconf_get_min_cfg(bfa)) { BFA_DCONF_MOD(bfa)->dconf->throttle_cfg.value = value; BFA_DCONF_MOD(bfa)->dconf->throttle_cfg.is_valid = 1; return BFA_STATUS_OK; } return BFA_STATUS_FAILED; } u16 bfa_fcpim_read_throttle(struct bfa_s *bfa) { struct bfa_throttle_cfg_s *throttle_cfg = &(BFA_DCONF_MOD(bfa)->dconf->throttle_cfg); return ((!bfa_dconf_get_min_cfg(bfa)) ? ((throttle_cfg->is_valid == 1) ? (throttle_cfg->value) : 0) : 0); } bfa_status_t bfa_fcpim_throttle_set(struct bfa_s *bfa, u16 value) { /* in min cfg no commands should run. */ if ((bfa_dconf_get_min_cfg(bfa) == BFA_TRUE) || (!bfa_dconf_read_data_valid(bfa))) return BFA_STATUS_FAILED; bfa_fcpim_write_throttle(bfa, value); return bfa_dconf_update(bfa); } bfa_status_t bfa_fcpim_throttle_get(struct bfa_s *bfa, void *buf) { struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); struct bfa_defs_fcpim_throttle_s throttle; if ((bfa_dconf_get_min_cfg(bfa) == BFA_TRUE) || (!bfa_dconf_read_data_valid(bfa))) return BFA_STATUS_FAILED; memset(&throttle, 0, sizeof(struct bfa_defs_fcpim_throttle_s)); throttle.cur_value = (u16)(fcpim->fcp->num_ioim_reqs); throttle.cfg_value = bfa_fcpim_read_throttle(bfa); if (!throttle.cfg_value) throttle.cfg_value = throttle.cur_value; throttle.max_value = (u16)(fcpim->fcp->max_ioim_reqs); memcpy(buf, &throttle, sizeof(struct bfa_defs_fcpim_throttle_s)); return BFA_STATUS_OK; }
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