diff options
Diffstat (limited to 'drivers/scsi/bfa/bfa_fcpim.h')
| -rw-r--r-- | drivers/scsi/bfa/bfa_fcpim.h | 188 |
1 files changed, 71 insertions, 117 deletions
diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h index db53717eeb4b..1e38dade8423 100644 --- a/drivers/scsi/bfa/bfa_fcpim.h +++ b/drivers/scsi/bfa/bfa_fcpim.h @@ -41,7 +41,7 @@ (__itnim->ioprofile.iocomps[__index]++) #define BFA_IOIM_RETRY_TAG_OFFSET 11 -#define BFA_IOIM_RETRY_TAG_MASK 0x07ff /* 2K IOs */ +#define BFA_IOIM_IOTAG_MASK 0x07ff /* 2K IOs */ #define BFA_IOIM_RETRY_MAX 7 /* Buckets are are 512 bytes to 2MB */ @@ -94,12 +94,12 @@ struct bfa_fcpim_mod_s { 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; - u32 ios_active; /* current active IOs */ - u32 delay_comp; + 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; - u32 io_profile_start_time; + u32 io_profile_start_time; bfa_fcpim_profile_t profile_comp; bfa_fcpim_profile_t profile_start; }; @@ -114,25 +114,24 @@ struct bfa_ioim_s { struct bfa_fcpim_mod_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 */ + 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 */ - u64 start_time; /* IO's Profile start val */ + struct bfa_ioim_sp_s *iosp; /* slow-path IO handling */ + u8 reqq; /* Request queue for I/O */ + u64 start_time; /* IO's Profile start val */ }; - struct bfa_ioim_sp_s { struct bfi_msg_s comp_rspmsg; /* IO comp f/w response */ u8 *snsinfo; /* sense info for this IO */ - struct bfa_sgpg_wqe_s sgpg_wqe; /* waitq elem for sgpg */ - struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ + 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 */ }; @@ -143,35 +142,34 @@ struct bfa_ioim_sp_s { struct bfa_tskim_s { struct list_head qe; bfa_sm_t sm; - struct bfa_s *bfa; /* BFA module */ + struct bfa_s *bfa; /* BFA module */ struct bfa_fcpim_mod_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 */ - lun_t 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 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_wc_s wc; /* waiting counter */ struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ enum bfi_tskim_status tsk_status; /* TM status */ }; - /* * BFA i-t-n (initiator mode) */ struct bfa_itnim_s { - struct list_head qe; /* queue element */ - bfa_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 list_head qe; /* queue element */ + bfa_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 */ + 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 */ @@ -181,19 +179,19 @@ struct bfa_itnim_s { 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_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_mod_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_MOD(_hal) (&(_hal)->modules.fcpim_mod) +#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_RETRY_TAG_MASK)]) + (&fcpim->ioim_arr[(_iotag & BFA_IOIM_IOTAG_MASK)]) #define BFA_TSKIM_FROM_TAG(_fcpim, _tmtag) \ (&fcpim->tskim_arr[_tmtag & (fcpim->num_tskim_reqs - 1)]) @@ -201,26 +199,26 @@ struct bfa_itnim_s { (_bfa->modules.fcpim_mod.io_profile_start_time) #define bfa_fcpim_get_io_profile(_bfa) \ (_bfa->modules.fcpim_mod.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_get_iotag(struct bfa_ioim_s *ioim) +bfa_ioim_maxretry_reached(struct bfa_ioim_s *ioim) { - u16 k = ioim->iotag; - - k >>= BFA_IOIM_RETRY_TAG_OFFSET; k++; - - if (k > BFA_IOIM_RETRY_MAX) + uint16_t k = ioim->iotag >> BFA_IOIM_RETRY_TAG_OFFSET; + if (k < BFA_IOIM_RETRY_MAX) return BFA_FALSE; - ioim->iotag &= BFA_IOIM_RETRY_TAG_MASK; - ioim->iotag |= k<<BFA_IOIM_RETRY_TAG_OFFSET; return BFA_TRUE; } + /* * function prototypes */ void bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo); -void bfa_ioim_detach(struct bfa_fcpim_mod_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); @@ -232,7 +230,6 @@ void bfa_ioim_tov(struct bfa_ioim_s *ioim); void bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo); -void bfa_tskim_detach(struct bfa_fcpim_mod_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); @@ -248,32 +245,14 @@ 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); -void bfa_ioim_profile_comp(struct bfa_ioim_s *ioim); -void bfa_ioim_profile_start(struct bfa_ioim_s *ioim); - /* * bfa fcpim module API functions */ -void bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov); +void bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov); u16 bfa_fcpim_path_tov_get(struct bfa_s *bfa); -void bfa_fcpim_qdepth_set(struct bfa_s *bfa, u16 q_depth); u16 bfa_fcpim_qdepth_get(struct bfa_s *bfa); -bfa_status_t bfa_fcpim_get_modstats(struct bfa_s *bfa, - struct bfa_itnim_iostats_s *modstats); -bfa_status_t bfa_fcpim_port_iostats(struct bfa_s *bfa, - struct bfa_itnim_iostats_s *stats, u8 lp_tag); -bfa_status_t bfa_fcpim_get_del_itn_stats(struct bfa_s *bfa, - struct bfa_fcpim_del_itn_stats_s *modstats); -bfa_status_t bfa_fcpim_port_clear_iostats(struct bfa_s *bfa, 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_clr_modstats(struct bfa_s *bfa); -void bfa_fcpim_set_ioredirect(struct bfa_s *bfa, - bfa_boolean_t state); -void bfa_fcpim_update_ioredirect(struct bfa_s *bfa); -bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time); -bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa); + #define bfa_fcpim_ioredirect_enabled(__bfa) \ (((struct bfa_fcpim_mod_s *)(BFA_FCPIM_MOD(__bfa)))->ioredirect) @@ -291,48 +270,33 @@ bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa); * 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_get_stats(struct bfa_itnim_s *itnim, - struct bfa_itnim_iostats_s *stats); -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); + 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(). - * - * @param[in] itnim FCS or driver itnim instance - * - * return None + * BFA completion callback for bfa_itnim_online(). */ void bfa_cb_itnim_online(void *itnim); /* - * BFA completion callback for bfa_itnim_offline(). - * - * @param[in] itnim FCS or driver itnim instance - * - * return None + * 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. - * + * 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. - * - * @param[in] itnim FCS or driver itnim instance - * - * return None */ void bfa_cb_itnim_sler(void *itnim); @@ -349,10 +313,8 @@ 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. + * I/O completion notification. * * @param[in] dio driver IO structure * @param[in] io_status IO completion status @@ -363,39 +325,31 @@ void bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, * * @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); +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. - * - * @param[in] dio driver IO structure - * - * @return None + * I/O good completion notification. */ -void bfa_cb_ioim_good_comp(void *bfad, struct bfad_ioim_s *dio); +void bfa_cb_ioim_good_comp(void *bfad, struct bfad_ioim_s *dio); /* - * I/O abort completion notification - * - * @param[in] dio driver IO that was aborted - * - * @return None + * I/O abort completion notification */ -void bfa_cb_ioim_abort(void *bfad, struct bfad_ioim_s *dio); +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, lun_t 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); +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); #endif /* __BFA_FCPIM_H__ */ |