diff options
Diffstat (limited to 'kernel/drivers/scsi/bfa/bfa.h')
| -rw-r--r-- | kernel/drivers/scsi/bfa/bfa.h | 448 |
1 files changed, 448 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/bfa/bfa.h b/kernel/drivers/scsi/bfa/bfa.h new file mode 100644 index 000000000..4ad7e368b --- /dev/null +++ b/kernel/drivers/scsi/bfa/bfa.h @@ -0,0 +1,448 @@ +/* + * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. + * All rights reserved + * www.brocade.com + * + * Linux driver for Brocade 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. + */ +#ifndef __BFA_H__ +#define __BFA_H__ + +#include "bfad_drv.h" +#include "bfa_cs.h" +#include "bfa_plog.h" +#include "bfa_defs_svc.h" +#include "bfi.h" +#include "bfa_ioc.h" + +struct bfa_s; + +typedef void (*bfa_isr_func_t) (struct bfa_s *bfa, struct bfi_msg_s *m); +typedef void (*bfa_cb_cbfn_status_t) (void *cbarg, bfa_status_t status); + +/* + * Interrupt message handlers + */ +void bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m); + +/* + * Request and response queue related defines + */ +#define BFA_REQQ_NELEMS_MIN (4) +#define BFA_RSPQ_NELEMS_MIN (4) + +#define bfa_reqq_pi(__bfa, __reqq) ((__bfa)->iocfc.req_cq_pi[__reqq]) +#define bfa_reqq_ci(__bfa, __reqq) \ + (*(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva)) + +#define bfa_reqq_full(__bfa, __reqq) \ + (((bfa_reqq_pi(__bfa, __reqq) + 1) & \ + ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1)) == \ + bfa_reqq_ci(__bfa, __reqq)) + +#define bfa_reqq_next(__bfa, __reqq) \ + (bfa_reqq_full(__bfa, __reqq) ? NULL : \ + ((void *)((struct bfi_msg_s *)((__bfa)->iocfc.req_cq_ba[__reqq].kva) \ + + bfa_reqq_pi((__bfa), (__reqq))))) + +#define bfa_reqq_produce(__bfa, __reqq, __mh) do { \ + (__mh).mtag.h2i.qid = (__bfa)->iocfc.hw_qid[__reqq];\ + (__bfa)->iocfc.req_cq_pi[__reqq]++; \ + (__bfa)->iocfc.req_cq_pi[__reqq] &= \ + ((__bfa)->iocfc.cfg.drvcfg.num_reqq_elems - 1); \ + writel((__bfa)->iocfc.req_cq_pi[__reqq], \ + (__bfa)->iocfc.bfa_regs.cpe_q_pi[__reqq]); \ + mmiowb(); \ + } while (0) + +#define bfa_rspq_pi(__bfa, __rspq) \ + (*(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva)) + +#define bfa_rspq_ci(__bfa, __rspq) ((__bfa)->iocfc.rsp_cq_ci[__rspq]) +#define bfa_rspq_elem(__bfa, __rspq, __ci) \ + (&((struct bfi_msg_s *)((__bfa)->iocfc.rsp_cq_ba[__rspq].kva))[__ci]) + +#define CQ_INCR(__index, __size) do { \ + (__index)++; \ + (__index) &= ((__size) - 1); \ +} while (0) + +/* + * Circular queue usage assignments + */ +enum { + BFA_REQQ_IOC = 0, /* all low-priority IOC msgs */ + BFA_REQQ_FCXP = 0, /* all FCXP messages */ + BFA_REQQ_LPS = 0, /* all lport service msgs */ + BFA_REQQ_PORT = 0, /* all port messages */ + BFA_REQQ_FLASH = 0, /* for flash module */ + BFA_REQQ_DIAG = 0, /* for diag module */ + BFA_REQQ_RPORT = 0, /* all port messages */ + BFA_REQQ_SBOOT = 0, /* all san boot messages */ + BFA_REQQ_QOS_LO = 1, /* all low priority IO */ + BFA_REQQ_QOS_MD = 2, /* all medium priority IO */ + BFA_REQQ_QOS_HI = 3, /* all high priority IO */ +}; + +static inline void +bfa_reqq_winit(struct bfa_reqq_wait_s *wqe, void (*qresume) (void *cbarg), + void *cbarg) +{ + wqe->qresume = qresume; + wqe->cbarg = cbarg; +} + +#define bfa_reqq(__bfa, __reqq) (&(__bfa)->reqq_waitq[__reqq]) + +/* + * static inline void + * bfa_reqq_wait(struct bfa_s *bfa, int reqq, struct bfa_reqq_wait_s *wqe) + */ +#define bfa_reqq_wait(__bfa, __reqq, __wqe) do { \ + \ + struct list_head *waitq = bfa_reqq(__bfa, __reqq); \ + \ + WARN_ON(((__reqq) >= BFI_IOC_MAX_CQS)); \ + WARN_ON(!((__wqe)->qresume && (__wqe)->cbarg)); \ + \ + list_add_tail(&(__wqe)->qe, waitq); \ + } while (0) + +#define bfa_reqq_wcancel(__wqe) list_del(&(__wqe)->qe) + +#define bfa_cb_queue(__bfa, __hcb_qe, __cbfn, __cbarg) do { \ + (__hcb_qe)->cbfn = (__cbfn); \ + (__hcb_qe)->cbarg = (__cbarg); \ + (__hcb_qe)->pre_rmv = BFA_FALSE; \ + list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \ + } while (0) + +#define bfa_cb_dequeue(__hcb_qe) list_del(&(__hcb_qe)->qe) + +#define bfa_cb_queue_once(__bfa, __hcb_qe, __cbfn, __cbarg) do { \ + (__hcb_qe)->cbfn = (__cbfn); \ + (__hcb_qe)->cbarg = (__cbarg); \ + if (!(__hcb_qe)->once) { \ + list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \ + (__hcb_qe)->once = BFA_TRUE; \ + } \ + } while (0) + +#define bfa_cb_queue_status(__bfa, __hcb_qe, __status) do { \ + (__hcb_qe)->fw_status = (__status); \ + list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \ +} while (0) + +#define bfa_cb_queue_done(__hcb_qe) do { \ + (__hcb_qe)->once = BFA_FALSE; \ + } while (0) + + +/* + * PCI devices supported by the current BFA + */ +struct bfa_pciid_s { + u16 device_id; + u16 vendor_id; +}; + +extern char bfa_version[]; + +struct bfa_iocfc_regs_s { + void __iomem *intr_status; + void __iomem *intr_mask; + void __iomem *cpe_q_pi[BFI_IOC_MAX_CQS]; + void __iomem *cpe_q_ci[BFI_IOC_MAX_CQS]; + void __iomem *cpe_q_ctrl[BFI_IOC_MAX_CQS]; + void __iomem *rme_q_ci[BFI_IOC_MAX_CQS]; + void __iomem *rme_q_pi[BFI_IOC_MAX_CQS]; + void __iomem *rme_q_ctrl[BFI_IOC_MAX_CQS]; +}; + +/* + * MSIX vector handlers + */ +#define BFA_MSIX_MAX_VECTORS 22 +typedef void (*bfa_msix_handler_t)(struct bfa_s *bfa, int vec); +struct bfa_msix_s { + int nvecs; + bfa_msix_handler_t handler[BFA_MSIX_MAX_VECTORS]; +}; + +/* + * Chip specific interfaces + */ +struct bfa_hwif_s { + void (*hw_reginit)(struct bfa_s *bfa); + void (*hw_reqq_ack)(struct bfa_s *bfa, int reqq); + void (*hw_rspq_ack)(struct bfa_s *bfa, int rspq, u32 ci); + void (*hw_msix_init)(struct bfa_s *bfa, int nvecs); + void (*hw_msix_ctrl_install)(struct bfa_s *bfa); + void (*hw_msix_queue_install)(struct bfa_s *bfa); + void (*hw_msix_uninstall)(struct bfa_s *bfa); + 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); + int cpe_vec_q0; + int rme_vec_q0; +}; +typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status); + +struct bfa_faa_cbfn_s { + bfa_cb_iocfc_t faa_cbfn; + void *faa_cbarg; +}; + +#define BFA_FAA_ENABLED 1 +#define BFA_FAA_DISABLED 2 + +/* + * FAA attributes + */ +struct bfa_faa_attr_s { + wwn_t faa; + u8 faa_state; + u8 pwwn_source; + u8 rsvd[6]; +}; + +struct bfa_faa_args_s { + struct bfa_faa_attr_s *faa_attr; + struct bfa_faa_cbfn_s faa_cb; + u8 faa_state; + bfa_boolean_t busy; +}; + +struct bfa_iocfc_s { + bfa_fsm_t fsm; + struct bfa_s *bfa; + struct bfa_iocfc_cfg_s cfg; + u32 req_cq_pi[BFI_IOC_MAX_CQS]; + u32 rsp_cq_ci[BFI_IOC_MAX_CQS]; + u8 hw_qid[BFI_IOC_MAX_CQS]; + struct bfa_cb_qe_s init_hcb_qe; + struct bfa_cb_qe_s stop_hcb_qe; + struct bfa_cb_qe_s dis_hcb_qe; + struct bfa_cb_qe_s en_hcb_qe; + struct bfa_cb_qe_s stats_hcb_qe; + bfa_boolean_t submod_enabled; + bfa_boolean_t cb_reqd; /* Driver call back reqd */ + bfa_status_t op_status; /* Status of bfa iocfc op */ + + struct bfa_dma_s cfg_info; + struct bfi_iocfc_cfg_s *cfginfo; + struct bfa_dma_s cfgrsp_dma; + struct bfi_iocfc_cfgrsp_s *cfgrsp; + struct bfa_dma_s req_cq_ba[BFI_IOC_MAX_CQS]; + struct bfa_dma_s req_cq_shadow_ci[BFI_IOC_MAX_CQS]; + struct bfa_dma_s rsp_cq_ba[BFI_IOC_MAX_CQS]; + struct bfa_dma_s rsp_cq_shadow_pi[BFI_IOC_MAX_CQS]; + struct bfa_iocfc_regs_s bfa_regs; /* BFA device registers */ + struct bfa_hwif_s hwif; + bfa_cb_iocfc_t updateq_cbfn; /* bios callback function */ + void *updateq_cbarg; /* bios callback arg */ + u32 intr_mask; + struct bfa_faa_args_s faa_args; + struct bfa_mem_dma_s ioc_dma; + struct bfa_mem_dma_s iocfc_dma; + struct bfa_mem_dma_s reqq_dma[BFI_IOC_MAX_CQS]; + struct bfa_mem_dma_s rspq_dma[BFI_IOC_MAX_CQS]; + struct bfa_mem_kva_s kva_seg; +}; + +#define BFA_MEM_IOC_DMA(_bfa) (&((_bfa)->iocfc.ioc_dma)) +#define BFA_MEM_IOCFC_DMA(_bfa) (&((_bfa)->iocfc.iocfc_dma)) +#define BFA_MEM_REQQ_DMA(_bfa, _qno) (&((_bfa)->iocfc.reqq_dma[(_qno)])) +#define BFA_MEM_RSPQ_DMA(_bfa, _qno) (&((_bfa)->iocfc.rspq_dma[(_qno)])) +#define BFA_MEM_IOCFC_KVA(_bfa) (&((_bfa)->iocfc.kva_seg)) + +#define bfa_fn_lpu(__bfa) \ + bfi_fn_lpu(bfa_ioc_pcifn(&(__bfa)->ioc), bfa_ioc_portid(&(__bfa)->ioc)) +#define bfa_msix_init(__bfa, __nvecs) \ + ((__bfa)->iocfc.hwif.hw_msix_init(__bfa, __nvecs)) +#define bfa_msix_ctrl_install(__bfa) \ + ((__bfa)->iocfc.hwif.hw_msix_ctrl_install(__bfa)) +#define bfa_msix_queue_install(__bfa) \ + ((__bfa)->iocfc.hwif.hw_msix_queue_install(__bfa)) +#define bfa_msix_uninstall(__bfa) \ + ((__bfa)->iocfc.hwif.hw_msix_uninstall(__bfa)) +#define bfa_isr_rspq_ack(__bfa, __queue, __ci) \ + ((__bfa)->iocfc.hwif.hw_rspq_ack(__bfa, __queue, __ci)) +#define bfa_isr_reqq_ack(__bfa, __queue) do { \ + if ((__bfa)->iocfc.hwif.hw_reqq_ack) \ + (__bfa)->iocfc.hwif.hw_reqq_ack(__bfa, __queue); \ +} while (0) +#define bfa_isr_mode_set(__bfa, __msix) do { \ + if ((__bfa)->iocfc.hwif.hw_isr_mode_set) \ + (__bfa)->iocfc.hwif.hw_isr_mode_set(__bfa, __msix); \ +} while (0) +#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)) +#define bfa_msix(__bfa, __vec) \ + ((__bfa)->msix.handler[__vec](__bfa, __vec)) + +/* + * FC specific IOC functions. + */ +void bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, + struct bfa_s *bfa); +void bfa_iocfc_attach(struct bfa_s *bfa, void *bfad, + struct bfa_iocfc_cfg_s *cfg, + struct bfa_pcidev_s *pcidev); +void bfa_iocfc_init(struct bfa_s *bfa); +void bfa_iocfc_start(struct bfa_s *bfa); +void bfa_iocfc_stop(struct bfa_s *bfa); +void bfa_iocfc_isr(void *bfa, struct bfi_mbmsg_s *msg); +void bfa_iocfc_set_snsbase(struct bfa_s *bfa, int seg_no, u64 snsbase_pa); +bfa_boolean_t bfa_iocfc_is_operational(struct bfa_s *bfa); +void bfa_iocfc_reset_queues(struct bfa_s *bfa); + +void bfa_msix_all(struct bfa_s *bfa, int vec); +void bfa_msix_reqq(struct bfa_s *bfa, int vec); +void bfa_msix_rspq(struct bfa_s *bfa, int vec); +void bfa_msix_lpu_err(struct bfa_s *bfa, int vec); + +void bfa_hwcb_reginit(struct bfa_s *bfa); +void bfa_hwcb_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci); +void bfa_hwcb_msix_init(struct bfa_s *bfa, int nvecs); +void bfa_hwcb_msix_ctrl_install(struct bfa_s *bfa); +void bfa_hwcb_msix_queue_install(struct bfa_s *bfa); +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_hwct2_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, u32 ci); +void bfa_hwct2_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci); +void bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs); +void bfa_hwct_msix_ctrl_install(struct bfa_s *bfa); +void bfa_hwct_msix_queue_install(struct bfa_s *bfa); +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_iocfc_get_bootwwns(struct bfa_s *bfa, u8 *nwwns, wwn_t *wwns); +int bfa_iocfc_get_pbc_vports(struct bfa_s *bfa, + struct bfi_pbc_vport_s *pbc_vport); + + +/* + *---------------------------------------------------------------------- + * BFA public interfaces + *---------------------------------------------------------------------- + */ +#define bfa_stats(_mod, _stats) ((_mod)->stats._stats++) +#define bfa_ioc_get_stats(__bfa, __ioc_stats) \ + bfa_ioc_fetch_stats(&(__bfa)->ioc, __ioc_stats) +#define bfa_ioc_clear_stats(__bfa) \ + bfa_ioc_clr_stats(&(__bfa)->ioc) +#define bfa_get_nports(__bfa) \ + bfa_ioc_get_nports(&(__bfa)->ioc) +#define bfa_get_adapter_manufacturer(__bfa, __manufacturer) \ + bfa_ioc_get_adapter_manufacturer(&(__bfa)->ioc, __manufacturer) +#define bfa_get_adapter_model(__bfa, __model) \ + bfa_ioc_get_adapter_model(&(__bfa)->ioc, __model) +#define bfa_get_adapter_serial_num(__bfa, __serial_num) \ + bfa_ioc_get_adapter_serial_num(&(__bfa)->ioc, __serial_num) +#define bfa_get_adapter_fw_ver(__bfa, __fw_ver) \ + bfa_ioc_get_adapter_fw_ver(&(__bfa)->ioc, __fw_ver) +#define bfa_get_adapter_optrom_ver(__bfa, __optrom_ver) \ + bfa_ioc_get_adapter_optrom_ver(&(__bfa)->ioc, __optrom_ver) +#define bfa_get_pci_chip_rev(__bfa, __chip_rev) \ + bfa_ioc_get_pci_chip_rev(&(__bfa)->ioc, __chip_rev) +#define bfa_get_ioc_state(__bfa) \ + bfa_ioc_get_state(&(__bfa)->ioc) +#define bfa_get_type(__bfa) \ + bfa_ioc_get_type(&(__bfa)->ioc) +#define bfa_get_mac(__bfa) \ + bfa_ioc_get_mac(&(__bfa)->ioc) +#define bfa_get_mfg_mac(__bfa) \ + bfa_ioc_get_mfg_mac(&(__bfa)->ioc) +#define bfa_get_fw_clock_res(__bfa) \ + ((__bfa)->iocfc.cfgrsp->fwcfg.fw_tick_res) + +/* + * lun mask macros return NULL when min cfg is enabled and there is + * no memory allocated for lunmask. + */ +#define bfa_get_lun_mask(__bfa) \ + ((&(__bfa)->modules.dconf_mod)->min_cfg) ? NULL : \ + (&(BFA_DCONF_MOD(__bfa)->dconf->lun_mask)) + +#define bfa_get_lun_mask_list(_bfa) \ + ((&(_bfa)->modules.dconf_mod)->min_cfg) ? NULL : \ + (bfa_get_lun_mask(_bfa)->lun_list) + +#define bfa_get_lun_mask_status(_bfa) \ + (((&(_bfa)->modules.dconf_mod)->min_cfg) \ + ? BFA_LUNMASK_MINCFG : ((bfa_get_lun_mask(_bfa))->status)) + +void bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids); +void bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg); +void bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg); +void bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, + struct bfa_s *bfa); +void bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, + struct bfa_meminfo_s *meminfo, + struct bfa_pcidev_s *pcidev); +void bfa_detach(struct bfa_s *bfa); +void bfa_cb_init(void *bfad, bfa_status_t status); +void bfa_cb_updateq(void *bfad, bfa_status_t status); + +bfa_boolean_t bfa_intx(struct bfa_s *bfa); +void bfa_isr_enable(struct bfa_s *bfa); +void bfa_isr_disable(struct bfa_s *bfa); + +void bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q); +void bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q); +void bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q); + +typedef void (*bfa_cb_ioc_t) (void *cbarg, enum bfa_status status); +void bfa_iocfc_get_attr(struct bfa_s *bfa, struct bfa_iocfc_attr_s *attr); + + +bfa_status_t bfa_iocfc_israttr_set(struct bfa_s *bfa, + struct bfa_iocfc_intr_attr_s *attr); + +void bfa_iocfc_enable(struct bfa_s *bfa); +void bfa_iocfc_disable(struct bfa_s *bfa); +#define bfa_timer_start(_bfa, _timer, _timercb, _arg, _timeout) \ + bfa_timer_begin(&(_bfa)->timer_mod, _timer, _timercb, _arg, _timeout) + +struct bfa_cb_pending_q_s { + struct bfa_cb_qe_s hcb_qe; + void *data; /* Driver buffer */ +}; + +/* Common macros to operate on pending stats/attr apis */ +#define bfa_pending_q_init(__qe, __cbfn, __cbarg, __data) do { \ + bfa_q_qe_init(&((__qe)->hcb_qe.qe)); \ + (__qe)->hcb_qe.cbfn = (__cbfn); \ + (__qe)->hcb_qe.cbarg = (__cbarg); \ + (__qe)->hcb_qe.pre_rmv = BFA_TRUE; \ + (__qe)->data = (__data); \ +} while (0) + +#endif /* __BFA_H__ */ |