| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jing Huang | 1268 | 62.25% | 6 | 27.27% |
| Krishna Gudipati | 707 | 34.71% | 11 | 50.00% |
| Arnd Bergmann | 48 | 2.36% | 2 | 9.09% |
| Maggie Zhang | 12 | 0.59% | 2 | 9.09% |
| Thomas Gleixner | 2 | 0.10% | 1 | 4.55% |
| Total | 2037 | 22 |
/* 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. */ #ifndef __BFA_FCPIM_H__ #define __BFA_FCPIM_H__ #include "bfa.h" #include "bfa_svc.h" #include "bfi_ms.h" #include "bfa_defs_svc.h" #include "bfa_cs.h" /* FCP module related definitions */ #define BFA_IO_MAX BFI_IO_MAX #define BFA_FWTIO_MAX 2000 struct bfa_fcp_mod_s; struct bfa_iotag_s { struct list_head qe; /* queue element */ u16 tag; /* FW IO tag */ }; struct bfa_itn_s { bfa_isr_func_t isr; }; void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)); void bfa_itn_isr(struct bfa_s *bfa, struct bfi_msg_s *m); void bfa_iotag_attach(struct bfa_fcp_mod_s *fcp); void bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw, u16 max_ioim_fw); #define BFA_FCP_MOD(_hal) (&(_hal)->modules.fcp_mod) #define BFA_MEM_FCP_KVA(__bfa) (&(BFA_FCP_MOD(__bfa)->kva_seg)) #define BFA_IOTAG_FROM_TAG(_fcp, _tag) \ (&(_fcp)->iotag_arr[(_tag & BFA_IOIM_IOTAG_MASK)]) #define BFA_ITN_FROM_TAG(_fcp, _tag) \ ((_fcp)->itn_arr + ((_tag) & ((_fcp)->num_itns - 1))) #define BFA_SNSINFO_FROM_TAG(_fcp, _tag) \ bfa_mem_get_dmabuf_kva(_fcp, (_tag & BFA_IOIM_IOTAG_MASK), \ BFI_IOIM_SNSLEN) #define BFA_ITNIM_MIN 32 #define BFA_ITNIM_MAX 1024 #define BFA_IOIM_MIN 8 #define BFA_IOIM_MAX 2000 #define BFA_TSKIM_MIN 4 #define BFA_TSKIM_MAX 512 #define BFA_FCPIM_PATHTOV_DEF (30 * 1000) /* in millisecs */ #define BFA_FCPIM_PATHTOV_MAX (90 * 1000) /* in millisecs */ #define bfa_itnim_ioprofile_update(__itnim, __index) \ (__itnim->ioprofile.iocomps[__index]++) #define BFA_IOIM_RETRY_TAG_OFFSET 11 #define BFA_IOIM_IOTAG_MASK 0x07ff /* 2K IOs */ #define BFA_IOIM_RETRY_MAX 7 /* Buckets are are 512 bytes to 2MB */ static inline u32 bfa_ioim_get_index(u32 n) { int pos = 0; if (n >= (1UL)<<22) return BFA_IOBUCKET_MAX - 1; n >>= 8; if (n >= (1UL)<<16) { n >>= 16; pos += 16; } if (n >= 1 << 8) { n >>= 8; pos += 8; } if (n >= 1 << 4) { n >>= 4; pos += 4; } if (n >= 1 << 2) { n >>= 2; pos += 2; } if (n >= 1 << 1) pos += 1; return (n == 0) ? (0) : pos; } /* * forward declarations */ struct bfa_ioim_s; struct bfa_tskim_s; struct bfad_ioim_s; struct bfad_tskim_s; typedef void (*bfa_fcpim_profile_t) (struct bfa_ioim_s *ioim); struct bfa_fcpim_s { struct bfa_s *bfa; struct bfa_fcp_mod_s *fcp; struct bfa_itnim_s *itnim_arr; struct bfa_ioim_s *ioim_arr; struct bfa_ioim_sp_s *ioim_sp_arr; struct bfa_tskim_s *tskim_arr; int num_itnims; int num_tskim_reqs; u32 path_tov; u16 q_depth; u8 reqq; /* Request queue to be used */ struct list_head itnim_q; /* queue of active itnim */ struct list_head ioim_resfree_q; /* IOs waiting for f/w */ struct list_head ioim_comp_q; /* IO global comp Q */ struct list_head tskim_free_q; struct list_head tskim_unused_q; /* Unused tskim Q */ u32 ios_active; /* current active IOs */ u32 delay_comp; struct bfa_fcpim_del_itn_stats_s del_itn_stats; bfa_boolean_t ioredirect; bfa_boolean_t io_profile; time64_t io_profile_start_time; bfa_fcpim_profile_t profile_comp; bfa_fcpim_profile_t profile_start; }; /* Max FCP dma segs required */ #define BFA_FCP_DMA_SEGS BFI_IOIM_SNSBUF_SEGS struct bfa_fcp_mod_s { struct bfa_s *bfa; struct list_head iotag_ioim_free_q; /* free IO resources */ struct list_head iotag_tio_free_q; /* free IO resources */ struct list_head iotag_unused_q; /* unused IO resources*/ struct bfa_iotag_s *iotag_arr; struct bfa_itn_s *itn_arr; int max_ioim_reqs; int num_ioim_reqs; int num_fwtio_reqs; int num_itns; struct bfa_dma_s snsbase[BFA_FCP_DMA_SEGS]; struct bfa_fcpim_s fcpim; struct bfa_mem_dma_s dma_seg[BFA_FCP_DMA_SEGS]; struct bfa_mem_kva_s kva_seg; int throttle_update_required; }; /* * 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 */ }; struct bfa_ioim_s; typedef void (*bfa_ioim_sm_t)(struct bfa_ioim_s *, enum bfa_ioim_event); /* * BFA IO (initiator mode) */ struct bfa_ioim_s { struct list_head qe; /* queue elememt */ bfa_ioim_sm_t sm; /* BFA ioim state machine */ struct bfa_s *bfa; /* BFA module */ struct bfa_fcpim_s *fcpim; /* parent fcpim module */ struct bfa_itnim_s *itnim; /* i-t-n nexus for this IO */ struct bfad_ioim_s *dio; /* driver IO handle */ u16 iotag; /* FWI IO tag */ u16 abort_tag; /* unqiue abort request tag */ u16 nsges; /* number of SG elements */ u16 nsgpgs; /* number of SG pages */ struct bfa_sgpg_s *sgpg; /* first SG page */ struct list_head sgpg_q; /* allocated SG pages */ struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ bfa_cb_cbfn_t io_cbfn; /* IO completion handler */ struct bfa_ioim_sp_s *iosp; /* slow-path IO handling */ u8 reqq; /* Request queue for I/O */ u8 mode; /* IO is passthrough or not */ u64 start_time; /* IO's Profile start val */ }; struct bfa_ioim_sp_s { struct bfi_msg_s comp_rspmsg; /* IO comp f/w response */ struct bfa_sgpg_wqe_s sgpg_wqe; /* waitq elem for sgpg */ struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ bfa_boolean_t abort_explicit; /* aborted by OS */ struct bfa_tskim_s *tskim; /* Relevant TM cmd */ }; 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 */ }; struct bfa_tskim_s; typedef void (*bfa_tskim_sm_t)(struct bfa_tskim_s *, enum bfa_tskim_event); /* * BFA Task management command (initiator mode) */ struct bfa_tskim_s { struct list_head qe; bfa_tskim_sm_t sm; struct bfa_s *bfa; /* BFA module */ struct bfa_fcpim_s *fcpim; /* parent fcpim module */ struct bfa_itnim_s *itnim; /* i-t-n nexus for this IO */ struct bfad_tskim_s *dtsk; /* driver task mgmt cmnd */ bfa_boolean_t notify; /* notify itnim on TM comp */ struct scsi_lun lun; /* lun if applicable */ enum fcp_tm_cmnd tm_cmnd; /* task management command */ u16 tsk_tag; /* FWI IO tag */ u8 tsecs; /* timeout in seconds */ struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ struct list_head io_q; /* queue of affected IOs */ struct bfa_wc_s wc; /* waiting counter */ struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ enum bfi_tskim_status tsk_status; /* TM status */ }; /* * 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 */ }; struct bfa_itnim_s; typedef void (*bfa_itnim_sm_t)(struct bfa_itnim_s *, enum bfa_itnim_event); /* * BFA i-t-n (initiator mode) */ struct bfa_itnim_s { struct list_head qe; /* queue element */ bfa_itnim_sm_t sm; /* i-t-n im BFA state machine */ struct bfa_s *bfa; /* bfa instance */ struct bfa_rport_s *rport; /* bfa rport */ void *ditn; /* driver i-t-n structure */ struct bfi_mhdr_s mhdr; /* pre-built mhdr */ u8 msg_no; /* itnim/rport firmware handle */ u8 reqq; /* CQ for requests */ struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ struct list_head pending_q; /* queue of pending IO requests */ struct list_head io_q; /* queue of active IO requests */ struct list_head io_cleanup_q; /* IO being cleaned up */ struct list_head tsk_q; /* queue of active TM commands */ struct list_head delay_comp_q; /* queue of failed inflight cmds */ bfa_boolean_t seq_rec; /* SQER supported */ bfa_boolean_t is_online; /* itnim is ONLINE for IO */ bfa_boolean_t iotov_active; /* IO TOV timer is active */ struct bfa_wc_s wc; /* waiting counter */ struct bfa_timer_s timer; /* pending IO TOV */ struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ struct bfa_fcpim_s *fcpim; /* fcpim module */ struct bfa_itnim_iostats_s stats; struct bfa_itnim_ioprofile_s ioprofile; }; #define bfa_itnim_is_online(_itnim) ((_itnim)->is_online) #define BFA_FCPIM(_hal) (&(_hal)->modules.fcp_mod.fcpim) #define BFA_IOIM_TAG_2_ID(_iotag) ((_iotag) & BFA_IOIM_IOTAG_MASK) #define BFA_IOIM_FROM_TAG(_fcpim, _iotag) \ (&fcpim->ioim_arr[(_iotag & BFA_IOIM_IOTAG_MASK)]) #define BFA_TSKIM_FROM_TAG(_fcpim, _tmtag) \ (&fcpim->tskim_arr[_tmtag & (fcpim->num_tskim_reqs - 1)]) #define bfa_io_profile_start_time(_bfa) \ ((_bfa)->modules.fcp_mod.fcpim.io_profile_start_time) #define bfa_fcpim_get_io_profile(_bfa) \ ((_bfa)->modules.fcp_mod.fcpim.io_profile) #define bfa_ioim_update_iotag(__ioim) do { \ uint16_t k = (__ioim)->iotag >> BFA_IOIM_RETRY_TAG_OFFSET; \ k++; (__ioim)->iotag &= BFA_IOIM_IOTAG_MASK; \ (__ioim)->iotag |= k << BFA_IOIM_RETRY_TAG_OFFSET; \ } while (0) static inline bfa_boolean_t bfa_ioim_maxretry_reached(struct bfa_ioim_s *ioim) { uint16_t k = ioim->iotag >> BFA_IOIM_RETRY_TAG_OFFSET; if (k < BFA_IOIM_RETRY_MAX) return BFA_FALSE; return BFA_TRUE; } /* * function prototypes */ void bfa_ioim_attach(struct bfa_fcpim_s *fcpim); void bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); void bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); void bfa_ioim_cleanup(struct bfa_ioim_s *ioim); void bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, struct bfa_tskim_s *tskim); void bfa_ioim_iocdisable(struct bfa_ioim_s *ioim); void bfa_ioim_tov(struct bfa_ioim_s *ioim); void bfa_tskim_attach(struct bfa_fcpim_s *fcpim); void bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); void bfa_tskim_iodone(struct bfa_tskim_s *tskim); void bfa_tskim_iocdisable(struct bfa_tskim_s *tskim); void bfa_tskim_cleanup(struct bfa_tskim_s *tskim); void bfa_tskim_res_recfg(struct bfa_s *bfa, u16 num_tskim_fw); void bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len); void bfa_itnim_attach(struct bfa_fcpim_s *fcpim); void bfa_itnim_iocdisable(struct bfa_itnim_s *itnim); void bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); void bfa_itnim_iodone(struct bfa_itnim_s *itnim); void bfa_itnim_tskdone(struct bfa_itnim_s *itnim); bfa_boolean_t bfa_itnim_hold_io(struct bfa_itnim_s *itnim); /* * bfa fcpim module API functions */ void bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov); u16 bfa_fcpim_path_tov_get(struct bfa_s *bfa); u16 bfa_fcpim_qdepth_get(struct bfa_s *bfa); bfa_status_t bfa_fcpim_port_iostats(struct bfa_s *bfa, struct bfa_itnim_iostats_s *stats, u8 lp_tag); void bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *fcpim_stats, struct bfa_itnim_iostats_s *itnim_stats); bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, time64_t time); bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa); #define bfa_fcpim_ioredirect_enabled(__bfa) \ (((struct bfa_fcpim_s *)(BFA_FCPIM(__bfa)))->ioredirect) #define bfa_fcpim_get_next_reqq(__bfa, __qid) \ { \ struct bfa_fcpim_s *__fcpim = BFA_FCPIM(__bfa); \ __fcpim->reqq++; \ __fcpim->reqq &= (BFI_IOC_MAX_CQS - 1); \ *(__qid) = __fcpim->reqq; \ } #define bfa_iocfc_map_msg_to_qid(__msg, __qid) \ *(__qid) = (u8)((__msg) & (BFI_IOC_MAX_CQS - 1)); /* * bfa itnim API functions */ struct bfa_itnim_s *bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *itnim); void bfa_itnim_delete(struct bfa_itnim_s *itnim); void bfa_itnim_online(struct bfa_itnim_s *itnim, bfa_boolean_t seq_rec); void bfa_itnim_offline(struct bfa_itnim_s *itnim); void bfa_itnim_clear_stats(struct bfa_itnim_s *itnim); bfa_status_t bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim, struct bfa_itnim_ioprofile_s *ioprofile); #define bfa_itnim_get_reqq(__ioim) (((struct bfa_ioim_s *)__ioim)->itnim->reqq) /* * BFA completion callback for bfa_itnim_online(). */ void bfa_cb_itnim_online(void *itnim); /* * BFA completion callback for bfa_itnim_offline(). */ void bfa_cb_itnim_offline(void *itnim); void bfa_cb_itnim_tov_begin(void *itnim); void bfa_cb_itnim_tov(void *itnim); /* * 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 *itnim); /* * bfa ioim API functions */ struct bfa_ioim_s *bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio, struct bfa_itnim_s *itnim, u16 nsgles); void bfa_ioim_free(struct bfa_ioim_s *ioim); void bfa_ioim_start(struct bfa_ioim_s *ioim); bfa_status_t bfa_ioim_abort(struct bfa_ioim_s *ioim); void bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, bfa_boolean_t iotov); /* * I/O completion notification. * * @param[in] dio driver IO structure * @param[in] io_status IO completion status * @param[in] scsi_status SCSI status returned by target * @param[in] sns_len SCSI sense length, 0 if none * @param[in] sns_info SCSI sense data, if any * @param[in] residue Residual length * * @return None */ void bfa_cb_ioim_done(void *bfad, struct bfad_ioim_s *dio, enum bfi_ioim_status io_status, u8 scsi_status, int sns_len, u8 *sns_info, s32 residue); /* * I/O good completion notification. */ void bfa_cb_ioim_good_comp(void *bfad, struct bfad_ioim_s *dio); /* * I/O abort completion notification */ void bfa_cb_ioim_abort(void *bfad, struct bfad_ioim_s *dio); /* * bfa tskim API functions */ struct bfa_tskim_s *bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk); void bfa_tskim_free(struct bfa_tskim_s *tskim); void bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, struct scsi_lun lun, enum fcp_tm_cmnd tm, u8 t_secs); void bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk, enum bfi_tskim_status tsk_status); void bfa_fcpim_lunmask_rp_update(struct bfa_s *bfa, wwn_t lp_wwn, wwn_t rp_wwn, u16 rp_tag, u8 lp_tag); bfa_status_t bfa_fcpim_lunmask_update(struct bfa_s *bfa, u32 on_off); bfa_status_t bfa_fcpim_lunmask_query(struct bfa_s *bfa, void *buf); bfa_status_t bfa_fcpim_lunmask_delete(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, wwn_t rpwwn, struct scsi_lun lun); bfa_status_t bfa_fcpim_lunmask_add(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, wwn_t rpwwn, struct scsi_lun lun); bfa_status_t bfa_fcpim_lunmask_clear(struct bfa_s *bfa); u16 bfa_fcpim_read_throttle(struct bfa_s *bfa); bfa_status_t bfa_fcpim_write_throttle(struct bfa_s *bfa, u16 value); bfa_status_t bfa_fcpim_throttle_set(struct bfa_s *bfa, u16 value); bfa_status_t bfa_fcpim_throttle_get(struct bfa_s *bfa, void *buf); u16 bfa_fcpim_get_throttle_cfg(struct bfa_s *bfa, u16 drv_cfg_param); #endif /* __BFA_FCPIM_H__ */
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