diff options
author | Jing Huang <huangj@brocade.com> | 2010-07-08 19:57:33 -0700 |
---|---|---|
committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-27 12:04:17 -0500 |
commit | 36d345a703b7b3f80a56ee37abb7908c52d1cd67 (patch) | |
tree | fe038e44b6c274a55814d1bae84f0cc21ad4b15a | |
parent | 4b5e759dca9fb26d921c1267283350004dbf197b (diff) | |
download | kernel_samsung_espresso10-36d345a703b7b3f80a56ee37abb7908c52d1cd67.zip kernel_samsung_espresso10-36d345a703b7b3f80a56ee37abb7908c52d1cd67.tar.gz kernel_samsung_espresso10-36d345a703b7b3f80a56ee37abb7908c52d1cd67.tar.bz2 |
[SCSI] bfa: add dynamic queue selection
Add new bfa functionality to support dynamic queue selection (IO redirection).
IO redirection can only be enabled when QoS is disabled.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
-rw-r--r-- | drivers/scsi/bfa/bfa_cb_ioim_macros.h | 7 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_fcpim.c | 24 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_fcpim_priv.h | 5 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_fcport.c | 13 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_hw_cb.c | 7 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_hw_ct.c | 7 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_intr.c | 1 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_iocfc.c | 2 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_iocfc.h | 9 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfa_ioim.c | 29 | ||||
-rw-r--r-- | drivers/scsi/bfa/bfad_im.c | 9 | ||||
-rw-r--r-- | drivers/scsi/bfa/include/bfa_fcpim.h | 20 | ||||
-rw-r--r-- | drivers/scsi/bfa/include/bfa_svc.h | 1 | ||||
-rw-r--r-- | drivers/scsi/bfa/include/defs/bfa_defs_driver.h | 2 |
14 files changed, 117 insertions, 19 deletions
diff --git a/drivers/scsi/bfa/bfa_cb_ioim_macros.h b/drivers/scsi/bfa/bfa_cb_ioim_macros.h index 53a616f..3906ed9 100644 --- a/drivers/scsi/bfa/bfa_cb_ioim_macros.h +++ b/drivers/scsi/bfa/bfa_cb_ioim_macros.h @@ -171,6 +171,11 @@ bfa_cb_ioim_get_cdblen(struct bfad_ioim_s *dio) return cmnd->cmd_len; } - +/** + * Assign queue to be used for the I/O request. This value depends on whether + * the driver wants to use the queues via any specific algorithm. Currently, + * this is not supported. + */ +#define bfa_cb_ioim_get_reqq(__dio) BFA_FALSE #endif /* __BFA_HCB_IOIM_MACROS_H__ */ diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c index 12849e9..8c703d8 100644 --- a/drivers/scsi/bfa/bfa_fcpim.c +++ b/drivers/scsi/bfa/bfa_fcpim.c @@ -167,4 +167,28 @@ bfa_fcpim_qdepth_get(struct bfa_s *bfa) return fcpim->q_depth; } +void +bfa_fcpim_update_ioredirect(struct bfa_s *bfa) +{ + bfa_boolean_t ioredirect; + + /* + * IO redirection is turned off when QoS is enabled and vice versa + */ + ioredirect = bfa_fcport_is_qos_enabled(bfa) ? BFA_FALSE : BFA_TRUE; + /* + * Notify the bfad module of a possible state change in + * IO redirection capability, due to a QoS state change. bfad will + * check on the support for io redirection and update the + * fcpim's ioredirect state accordingly. + */ + bfa_cb_ioredirect_state_change((void *)(bfa->bfad), ioredirect); +} + +void +bfa_fcpim_set_ioredirect(struct bfa_s *bfa, bfa_boolean_t state) +{ + struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); + fcpim->ioredirect = state; +} diff --git a/drivers/scsi/bfa/bfa_fcpim_priv.h b/drivers/scsi/bfa/bfa_fcpim_priv.h index 3db39da..762516c 100644 --- a/drivers/scsi/bfa/bfa_fcpim_priv.h +++ b/drivers/scsi/bfa/bfa_fcpim_priv.h @@ -49,7 +49,8 @@ struct bfa_fcpim_mod_s { int num_tskim_reqs; u32 path_tov; u16 q_depth; - u16 rsvd; + u8 reqq; /* Request queue to be used */ + u8 rsvd; struct list_head itnim_q; /* queue of active itnim */ struct list_head ioim_free_q; /* free IO resources */ struct list_head ioim_resfree_q; /* IOs waiting for f/w */ @@ -58,6 +59,7 @@ struct bfa_fcpim_mod_s { u32 ios_active; /* current active IOs */ u32 delay_comp; struct bfa_fcpim_stats_s stats; + bfa_boolean_t ioredirect; }; struct bfa_ioim_s; @@ -82,6 +84,7 @@ struct bfa_ioim_s { 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 */ }; struct bfa_ioim_sp_s { diff --git a/drivers/scsi/bfa/bfa_fcport.c b/drivers/scsi/bfa/bfa_fcport.c index d3b5efb..e0e7a0d 100644 --- a/drivers/scsi/bfa/bfa_fcport.c +++ b/drivers/scsi/bfa/bfa_fcport.c @@ -1857,8 +1857,13 @@ bfa_fcport_cfg_qos(struct bfa_s *bfa, bfa_boolean_t on_off) bfa_trc(bfa, ioc_type); - if (ioc_type == BFA_IOC_TYPE_FC) + if (ioc_type == BFA_IOC_TYPE_FC) { fcport->cfg.qos_enabled = on_off; + /** + * Notify fcpim of the change in QoS state + */ + bfa_fcpim_update_ioredirect(bfa); + } } void @@ -1942,4 +1947,10 @@ bfa_fcport_is_linkup(struct bfa_s *bfa) return bfa_sm_cmp_state(BFA_FCPORT_MOD(bfa), bfa_fcport_sm_linkup); } +bfa_boolean_t +bfa_fcport_is_qos_enabled(struct bfa_s *bfa) +{ + struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa); + return fcport->cfg.qos_enabled; +} diff --git a/drivers/scsi/bfa/bfa_hw_cb.c b/drivers/scsi/bfa/bfa_hw_cb.c index 871a4e2..edfd729 100644 --- a/drivers/scsi/bfa/bfa_hw_cb.c +++ b/drivers/scsi/bfa/bfa_hw_cb.c @@ -152,4 +152,9 @@ bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix) bfa->iocfc.hwif.hw_rspq_ack = bfa_hwcb_rspq_ack_msix; } - +void +bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end) +{ + *start = BFA_MSIX_RME_Q0; + *end = BFA_MSIX_RME_Q7; +} diff --git a/drivers/scsi/bfa/bfa_hw_ct.c b/drivers/scsi/bfa/bfa_hw_ct.c index 76ceb9a..a357fb3 100644 --- a/drivers/scsi/bfa/bfa_hw_ct.c +++ b/drivers/scsi/bfa/bfa_hw_ct.c @@ -168,4 +168,9 @@ bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix) bfa_ioc_isr_mode_set(&bfa->ioc, msix); } - +void +bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end) +{ + *start = BFA_MSIX_RME_Q0; + *end = BFA_MSIX_RME_Q3; +} diff --git a/drivers/scsi/bfa/bfa_intr.c b/drivers/scsi/bfa/bfa_intr.c index 0eba3f9..4936788 100644 --- a/drivers/scsi/bfa/bfa_intr.c +++ b/drivers/scsi/bfa/bfa_intr.c @@ -134,6 +134,7 @@ bfa_isr_enable(struct bfa_s *bfa) bfa_reg_write(bfa->iocfc.bfa_regs.intr_status, intr_unmask); bfa_reg_write(bfa->iocfc.bfa_regs.intr_mask, ~intr_unmask); + bfa->iocfc.intr_mask = ~intr_unmask; bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0); } diff --git a/drivers/scsi/bfa/bfa_iocfc.c b/drivers/scsi/bfa/bfa_iocfc.c index 0776d74..90820be 100644 --- a/drivers/scsi/bfa/bfa_iocfc.c +++ b/drivers/scsi/bfa/bfa_iocfc.c @@ -187,6 +187,7 @@ bfa_iocfc_init_mem(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, iocfc->hwif.hw_msix_uninstall = bfa_hwct_msix_uninstall; iocfc->hwif.hw_isr_mode_set = bfa_hwct_isr_mode_set; iocfc->hwif.hw_msix_getvecs = bfa_hwct_msix_getvecs; + iocfc->hwif.hw_msix_get_rme_range = bfa_hwct_msix_get_rme_range; } else { iocfc->hwif.hw_reginit = bfa_hwcb_reginit; iocfc->hwif.hw_reqq_ack = bfa_hwcb_reqq_ack; @@ -196,6 +197,7 @@ bfa_iocfc_init_mem(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, iocfc->hwif.hw_msix_uninstall = bfa_hwcb_msix_uninstall; iocfc->hwif.hw_isr_mode_set = bfa_hwcb_isr_mode_set; iocfc->hwif.hw_msix_getvecs = bfa_hwcb_msix_getvecs; + iocfc->hwif.hw_msix_get_rme_range = bfa_hwcb_msix_get_rme_range; } iocfc->hwif.hw_reginit(bfa); diff --git a/drivers/scsi/bfa/bfa_iocfc.h b/drivers/scsi/bfa/bfa_iocfc.h index 2b28103..74a6a04 100644 --- a/drivers/scsi/bfa/bfa_iocfc.h +++ b/drivers/scsi/bfa/bfa_iocfc.h @@ -63,6 +63,8 @@ struct bfa_hwif_s { void (*hw_isr_mode_set)(struct bfa_s *bfa, bfa_boolean_t msix); void (*hw_msix_getvecs)(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs, u32 *maxvec); + void (*hw_msix_get_rme_range) (struct bfa_s *bfa, u32 *start, + u32 *end); }; typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status); @@ -104,7 +106,8 @@ struct bfa_iocfc_s { struct bfa_hwif_s hwif; bfa_cb_iocfc_t updateq_cbfn; /* bios callback function */ - void *updateq_cbarg; /* bios callback arg */ + void *updateq_cbarg; /* bios callback arg */ + u32 intr_mask; }; #define bfa_lpuid(__bfa) bfa_ioc_portid(&(__bfa)->ioc) @@ -119,6 +122,8 @@ struct bfa_iocfc_s { #define bfa_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec) \ ((__bfa)->iocfc.hwif.hw_msix_getvecs(__bfa, __vecmap, \ __nvecs, __maxvec)) +#define bfa_msix_get_rme_range(__bfa, __start, __end) \ + ((__bfa)->iocfc.hwif.hw_msix_get_rme_range(__bfa, __start, __end)) /* * FC specific IOC functions. @@ -154,6 +159,7 @@ void bfa_hwcb_msix_uninstall(struct bfa_s *bfa); void bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix); void bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs, u32 *maxvec); +void bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end); void bfa_hwct_reginit(struct bfa_s *bfa); void bfa_hwct_reqq_ack(struct bfa_s *bfa, int rspq); void bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq); @@ -163,6 +169,7 @@ void bfa_hwct_msix_uninstall(struct bfa_s *bfa); void bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix); void bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *vecmap, u32 *nvecs, u32 *maxvec); +void bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end); void bfa_com_meminfo(bfa_boolean_t mincfg, u32 *dm_len); void bfa_com_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi, diff --git a/drivers/scsi/bfa/bfa_ioim.c b/drivers/scsi/bfa/bfa_ioim.c index 687f3d6..680b87d 100644 --- a/drivers/scsi/bfa/bfa_ioim.c +++ b/drivers/scsi/bfa/bfa_ioim.c @@ -234,8 +234,8 @@ bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) bfa_sm_set_state(ioim, bfa_ioim_sm_abort); else { bfa_sm_set_state(ioim, bfa_ioim_sm_abort_qfull); - bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq, - &ioim->iosp->reqq_wait); + bfa_reqq_wait(ioim->bfa, ioim->reqq, + &ioim->iosp->reqq_wait); } break; @@ -247,8 +247,8 @@ bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); else { bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); - bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq, - &ioim->iosp->reqq_wait); + bfa_reqq_wait(ioim->bfa, ioim->reqq, + &ioim->iosp->reqq_wait); } break; @@ -305,7 +305,7 @@ bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); else { bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); - bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq, + bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); } break; @@ -738,9 +738,9 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim) /** * check for room in queue to send request now */ - m = bfa_reqq_next(ioim->bfa, itnim->reqq); + m = bfa_reqq_next(ioim->bfa, ioim->reqq); if (!m) { - bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq, + bfa_reqq_wait(ioim->bfa, ioim->reqq, &ioim->iosp->reqq_wait); return BFA_FALSE; } @@ -832,7 +832,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim) /** * queue I/O message to firmware */ - bfa_reqq_produce(ioim->bfa, itnim->reqq); + bfa_reqq_produce(ioim->bfa, ioim->reqq); return BFA_TRUE; } @@ -930,14 +930,13 @@ bfa_ioim_sgpg_setup(struct bfa_ioim_s *ioim) static bfa_boolean_t bfa_ioim_send_abort(struct bfa_ioim_s *ioim) { - struct bfa_itnim_s *itnim = ioim->itnim; 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, itnim->reqq); + m = bfa_reqq_next(ioim->bfa, ioim->reqq); if (!m) return BFA_FALSE; @@ -956,7 +955,7 @@ bfa_ioim_send_abort(struct bfa_ioim_s *ioim) /** * queue I/O message to firmware */ - bfa_reqq_produce(ioim->bfa, itnim->reqq); + bfa_reqq_produce(ioim->bfa, ioim->reqq); return BFA_TRUE; } @@ -1306,6 +1305,14 @@ void bfa_ioim_start(struct bfa_ioim_s *ioim) { bfa_trc_fp(ioim->bfa, ioim->iotag); + + /** + * Obtain the queue over which this request has to be issued + */ + ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ? + bfa_cb_ioim_get_reqq(ioim->dio) : + bfa_itnim_get_reqq(ioim); + bfa_sm_send_event(ioim, BFA_IOIM_SM_START); } diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 943bc4b..ffbec9b 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -702,6 +702,15 @@ bfad_im_probe_undo(struct bfad_s *bfad) } } +/** + * Call back function to handle IO redirection state change + */ +void +bfa_cb_ioredirect_state_change(void *hcb_bfad, bfa_boolean_t ioredirect) +{ + /* Do nothing */ +} + struct Scsi_Host * bfad_os_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) { diff --git a/drivers/scsi/bfa/include/bfa_fcpim.h b/drivers/scsi/bfa/include/bfa_fcpim.h index 0478979..4bc9453 100644 --- a/drivers/scsi/bfa/include/bfa_fcpim.h +++ b/drivers/scsi/bfa/include/bfa_fcpim.h @@ -42,6 +42,24 @@ u16 bfa_fcpim_qdepth_get(struct bfa_s *bfa); bfa_status_t bfa_fcpim_get_modstats(struct bfa_s *bfa, struct bfa_fcpim_stats_s *modstats); 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); +void bfa_cb_ioredirect_state_change(void *hcb_bfad, bfa_boolean_t ioredirect); + +#define bfa_fcpim_ioredirect_enabled(__bfa) \ + (((struct bfa_fcpim_mod_s *)(BFA_FCPIM_MOD(__bfa)))->ioredirect) + +#define bfa_fcpim_get_next_reqq(__bfa, __qid) \ +{ \ + struct bfa_fcpim_mod_s *__fcpim = BFA_FCPIM_MOD(__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 @@ -56,6 +74,7 @@ void bfa_itnim_get_stats(struct bfa_itnim_s *itnim, struct bfa_itnim_hal_stats_s *stats); void bfa_itnim_clear_stats(struct bfa_itnim_s *itnim); +#define bfa_itnim_get_reqq(__ioim) (((struct bfa_ioim_s *)__ioim)->itnim->reqq) /** * BFA completion callback for bfa_itnim_online(). @@ -156,4 +175,3 @@ void bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk, enum bfi_tskim_status tsk_status); #endif /* __BFA_FCPIM_H__ */ - diff --git a/drivers/scsi/bfa/include/bfa_svc.h b/drivers/scsi/bfa/include/bfa_svc.h index 1349b99..7840943 100644 --- a/drivers/scsi/bfa/include/bfa_svc.h +++ b/drivers/scsi/bfa/include/bfa_svc.h @@ -215,6 +215,7 @@ bfa_status_t bfa_fcport_get_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg); bfa_status_t bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg); +bfa_boolean_t bfa_fcport_is_qos_enabled(struct bfa_s *bfa); /* * bfa rport API functions diff --git a/drivers/scsi/bfa/include/defs/bfa_defs_driver.h b/drivers/scsi/bfa/include/defs/bfa_defs_driver.h index 50382dd..7d00d00 100644 --- a/drivers/scsi/bfa/include/defs/bfa_defs_driver.h +++ b/drivers/scsi/bfa/include/defs/bfa_defs_driver.h @@ -29,7 +29,7 @@ struct bfa_driver_stats_s { u16 tm_target_reset; u16 tm_bus_reset; u16 ioc_restart; /* IOC restart count */ - u16 io_pending; /* outstanding io count per-IOC */ + u16 rsvd; u64 control_req; u64 input_req; u64 output_req; |