drivers/scsi/bfa/bfa_iocfc.h

   1 /*
   2  * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 #ifndef __BFA_IOCFC_H__
  19 #define __BFA_IOCFC_H__
  20
  21 #include <bfa_ioc.h>
  22 #include <bfa.h>
  23 #include <bfi/bfi_iocfc.h>
  24 #include <bfa_callback_priv.h>
  25
  26 #define BFA_REQQ_NELEMS_MIN     (4)
  27 #define BFA_RSPQ_NELEMS_MIN     (4)
  28
  29 struct bfa_iocfc_regs_s {
  30         bfa_os_addr_t   intr_status;
  31         bfa_os_addr_t   intr_mask;
  32         bfa_os_addr_t   cpe_q_pi[BFI_IOC_MAX_CQS];
  33         bfa_os_addr_t   cpe_q_ci[BFI_IOC_MAX_CQS];
  34         bfa_os_addr_t   cpe_q_depth[BFI_IOC_MAX_CQS];
  35         bfa_os_addr_t   cpe_q_ctrl[BFI_IOC_MAX_CQS];
  36         bfa_os_addr_t   rme_q_ci[BFI_IOC_MAX_CQS];
  37         bfa_os_addr_t   rme_q_pi[BFI_IOC_MAX_CQS];
  38         bfa_os_addr_t   rme_q_depth[BFI_IOC_MAX_CQS];
  39         bfa_os_addr_t   rme_q_ctrl[BFI_IOC_MAX_CQS];
  40 };
  41
  42 /**
  43  * MSIX vector handlers
  44  */
  45 #define BFA_MSIX_MAX_VECTORS    22
  46 typedef void (*bfa_msix_handler_t)(struct bfa_s *bfa, int vec);
  47 struct bfa_msix_s {
  48         int     nvecs;
  49         bfa_msix_handler_t handler[BFA_MSIX_MAX_VECTORS];
  50 };
  51
  52 /**
  53  * Chip specific interfaces
  54  */
  55 struct bfa_hwif_s {
  56         void (*hw_reginit)(struct bfa_s *bfa);
  57         void (*hw_reqq_ack)(struct bfa_s *bfa, int reqq);
  58         void (*hw_rspq_ack)(struct bfa_s *bfa, int rspq);
  59         void (*hw_msix_init)(struct bfa_s *bfa, int nvecs);
  60         void (*hw_msix_install)(struct bfa_s *bfa);
  61         void (*hw_msix_uninstall)(struct bfa_s *bfa);
  62         void (*hw_isr_mode_set)(struct bfa_s *bfa, bfa_boolean_t msix);
  63         void (*hw_msix_getvecs)(struct bfa_s *bfa, u32 *vecmap,
  64                         u32 *nvecs, u32 *maxvec);
  65 };
  66 typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status);
  67
  68 struct bfa_iocfc_s {
  69         struct bfa_s            *bfa;
  70         struct bfa_iocfc_cfg_s  cfg;
  71         int                     action;
  72
  73         u32             req_cq_pi[BFI_IOC_MAX_CQS];
  74         u32             rsp_cq_ci[BFI_IOC_MAX_CQS];
  75
  76         struct bfa_cb_qe_s      init_hcb_qe;
  77         struct bfa_cb_qe_s      stop_hcb_qe;
  78         struct bfa_cb_qe_s      dis_hcb_qe;
  79         struct bfa_cb_qe_s      stats_hcb_qe;
  80         bfa_boolean_t           cfgdone;
  81
  82         struct bfa_dma_s        cfg_info;
  83         struct bfi_iocfc_cfg_s *cfginfo;
  84         struct bfa_dma_s        cfgrsp_dma;
  85         struct bfi_iocfc_cfgrsp_s *cfgrsp;
  86         struct bfi_iocfc_cfg_reply_s *cfg_reply;
  87
  88         u8                      *stats_kva;
  89         u64             stats_pa;
  90         struct bfa_fw_stats_s   *fw_stats;
  91         struct bfa_timer_s      stats_timer;    /*  timer */
  92         struct bfa_iocfc_stats_s *stats_ret;    /*  driver stats location */
  93         bfa_status_t            stats_status;   /*  stats/statsclr status */
  94         bfa_boolean_t           stats_busy;     /*  outstanding stats */
  95         bfa_cb_ioc_t            stats_cbfn;     /*  driver callback function */
  96         void                    *stats_cbarg;   /*  user callback arg */
  97
  98         struct bfa_dma_s        req_cq_ba[BFI_IOC_MAX_CQS];
  99         struct bfa_dma_s        req_cq_shadow_ci[BFI_IOC_MAX_CQS];
 100         struct bfa_dma_s        rsp_cq_ba[BFI_IOC_MAX_CQS];
 101         struct bfa_dma_s        rsp_cq_shadow_pi[BFI_IOC_MAX_CQS];
 102         struct bfa_iocfc_regs_s bfa_regs;       /*  BFA device registers */
 103         struct bfa_hwif_s       hwif;
 104
 105         bfa_cb_iocfc_t          updateq_cbfn; /*  bios callback function */
 106         void                            *updateq_cbarg; /*  bios callback arg */
 107 };
 108
 109 #define bfa_lpuid(__bfa)                bfa_ioc_portid(&(__bfa)->ioc)
 110 #define bfa_msix_init(__bfa, __nvecs)   \
 111         ((__bfa)->iocfc.hwif.hw_msix_init(__bfa, __nvecs))
 112 #define bfa_msix_install(__bfa) \
 113         ((__bfa)->iocfc.hwif.hw_msix_install(__bfa))
 114 #define bfa_msix_uninstall(__bfa)       \
 115         ((__bfa)->iocfc.hwif.hw_msix_uninstall(__bfa))
 116 #define bfa_isr_mode_set(__bfa, __msix) \
 117         ((__bfa)->iocfc.hwif.hw_isr_mode_set(__bfa, __msix))
 118 #define bfa_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec)    \
 119         (__bfa)->iocfc.hwif.hw_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec)
 120
 121 /*
 122  * FC specific IOC functions.
 123  */
 124 void bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
 125                 u32 *dm_len);
 126 void bfa_iocfc_attach(struct bfa_s *bfa, void *bfad,
 127                 struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 128                 struct bfa_pcidev_s *pcidev);
 129 void bfa_iocfc_detach(struct bfa_s *bfa);
 130 void bfa_iocfc_init(struct bfa_s *bfa);
 131 void bfa_iocfc_start(struct bfa_s *bfa);
 132 void bfa_iocfc_stop(struct bfa_s *bfa);
 133 void bfa_iocfc_isr(void *bfa, struct bfi_mbmsg_s *msg);
 134 void bfa_iocfc_set_snsbase(struct bfa_s *bfa, u64 snsbase_pa);
 135 bfa_boolean_t bfa_iocfc_is_operational(struct bfa_s *bfa);
 136 void bfa_iocfc_reset_queues(struct bfa_s *bfa);
 137 void bfa_iocfc_updateq(struct bfa_s *bfa, u32 reqq_ba, u32 rspq_ba,
 138                         u32 reqq_sci, u32 rspq_spi,
 139                         bfa_cb_iocfc_t cbfn, void *cbarg);
 140
 141 void bfa_msix_all(struct bfa_s *bfa, int vec);
 142 void bfa_msix_reqq(struct bfa_s *bfa, int vec);
 143 void bfa_msix_rspq(struct bfa_s *bfa, int vec);
 144 void bfa_msix_lpu_err(struct bfa_s *bfa, int vec);
 145
 146 void bfa_hwcb_reginit(struct bfa_s *bfa);
 147 void bfa_hwcb_reqq_ack(struct bfa_s *bfa, int rspq);
 148 void bfa_hwcb_rspq_ack(struct bfa_s *bfa, int rspq);
 149 void bfa_hwcb_msix_init(struct bfa_s *bfa, int nvecs);
 150 void bfa_hwcb_msix_install(struct bfa_s *bfa);
 151 void bfa_hwcb_msix_uninstall(struct bfa_s *bfa);
 152 void bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
 153 void bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *vecmap,
 154                         u32 *nvecs, u32 *maxvec);
 155 void bfa_hwct_reginit(struct bfa_s *bfa);
 156 void bfa_hwct_reqq_ack(struct bfa_s *bfa, int rspq);
 157 void bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq);
 158 void bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs);
 159 void bfa_hwct_msix_install(struct bfa_s *bfa);
 160 void bfa_hwct_msix_uninstall(struct bfa_s *bfa);
 161 void bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix);
 162 void bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *vecmap,
 163                         u32 *nvecs, u32 *maxvec);
 164
 165 void bfa_com_meminfo(bfa_boolean_t mincfg, u32 *dm_len);
 166 void bfa_com_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi,
 167                 bfa_boolean_t mincfg);
 168 void bfa_iocfc_get_bootwwns(struct bfa_s *bfa, u8 *nwwns, wwn_t **wwns);
 169
 170 #endif /* __BFA_IOCFC_H__ */
 171