drivers/net/bna/bfa_ioc.h

   1 /*
   2  * Linux network driver for Brocade Converged Network Adapter.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License (GPL) Version 2 as
   6  * published by the Free Software Foundation
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  */
  13 /*
  14  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
  15  * All rights reserved
  16  * www.brocade.com
  17  */
  18
  19 #ifndef __BFA_IOC_H__
  20 #define __BFA_IOC_H__
  21
  22 #include "bfa_cs.h"
  23 #include "bfi.h"
  24 #include "cna.h"
  25
  26 #define BFA_IOC_TOV             3000    /* msecs */
  27 #define BFA_IOC_HWSEM_TOV       500     /* msecs */
  28 #define BFA_IOC_HB_TOV          500     /* msecs */
  29 #define BFA_IOC_HWINIT_MAX      5
  30
  31 /**
  32  * PCI device information required by IOC
  33  */
  34 struct bfa_pcidev {
  35         int     pci_slot;
  36         u8      pci_func;
  37         u16     device_id;
  38         void    __iomem *pci_bar_kva;
  39 };
  40
  41 /**
  42  * Structure used to remember the DMA-able memory block's KVA and Physical
  43  * Address
  44  */
  45 struct bfa_dma {
  46         void    *kva;   /* ! Kernel virtual address     */
  47         u64     pa;     /* ! Physical address           */
  48 };
  49
  50 #define BFA_DMA_ALIGN_SZ        256
  51
  52 /**
  53  * smem size for Crossbow and Catapult
  54  */
  55 #define BFI_SMEM_CB_SIZE        0x200000U       /* ! 2MB for crossbow   */
  56 #define BFI_SMEM_CT_SIZE        0x280000U       /* ! 2.5MB for catapult */
  57
  58 /**
  59  * @brief BFA dma address assignment macro. (big endian format)
  60  */
  61 #define bfa_dma_be_addr_set(dma_addr, pa)       \
  62                 __bfa_dma_be_addr_set(&dma_addr, (u64)pa)
  63 static inline void
  64 __bfa_dma_be_addr_set(union bfi_addr_u *dma_addr, u64 pa)
  65 {
  66         dma_addr->a32.addr_lo = (u32) htonl(pa);
  67         dma_addr->a32.addr_hi = (u32) htonl(upper_32_bits(pa));
  68 }
  69
  70 struct bfa_ioc_regs {
  71         void __iomem *hfn_mbox_cmd;
  72         void __iomem *hfn_mbox;
  73         void __iomem *lpu_mbox_cmd;
  74         void __iomem *lpu_mbox;
  75         void __iomem *pss_ctl_reg;
  76         void __iomem *pss_err_status_reg;
  77         void __iomem *app_pll_fast_ctl_reg;
  78         void __iomem *app_pll_slow_ctl_reg;
  79         void __iomem *ioc_sem_reg;
  80         void __iomem *ioc_usage_sem_reg;
  81         void __iomem *ioc_init_sem_reg;
  82         void __iomem *ioc_usage_reg;
  83         void __iomem *host_page_num_fn;
  84         void __iomem *heartbeat;
  85         void __iomem *ioc_fwstate;
  86         void __iomem *alt_ioc_fwstate;
  87         void __iomem *ll_halt;
  88         void __iomem *alt_ll_halt;
  89         void __iomem *err_set;
  90         void __iomem *ioc_fail_sync;
  91         void __iomem *shirq_isr_next;
  92         void __iomem *shirq_msk_next;
  93         void __iomem *smem_page_start;
  94         u32     smem_pg0;
  95 };
  96
  97 /**
  98  * IOC Mailbox structures
  99  */
 100 typedef void (*bfa_mbox_cmd_cbfn_t)(void *cbarg);
 101 struct bfa_mbox_cmd {
 102         struct list_head        qe;
 103         bfa_mbox_cmd_cbfn_t     cbfn;
 104         void                *cbarg;
 105         u32     msg[BFI_IOC_MSGSZ];
 106 };
 107
 108 /**
 109  * IOC mailbox module
 110  */
 111 typedef void (*bfa_ioc_mbox_mcfunc_t)(void *cbarg, struct bfi_mbmsg *m);
 112 struct bfa_ioc_mbox_mod {
 113         struct list_head        cmd_q;          /*!< pending mbox queue */
 114         int                     nmclass;        /*!< number of handlers */
 115         struct {
 116                 bfa_ioc_mbox_mcfunc_t   cbfn;   /*!< message handlers   */
 117                 void                    *cbarg;
 118         } mbhdlr[BFI_MC_MAX];
 119 };
 120
 121 /**
 122  * IOC callback function interfaces
 123  */
 124 typedef void (*bfa_ioc_enable_cbfn_t)(void *bfa, enum bfa_status status);
 125 typedef void (*bfa_ioc_disable_cbfn_t)(void *bfa);
 126 typedef void (*bfa_ioc_hbfail_cbfn_t)(void *bfa);
 127 typedef void (*bfa_ioc_reset_cbfn_t)(void *bfa);
 128 struct bfa_ioc_cbfn {
 129         bfa_ioc_enable_cbfn_t   enable_cbfn;
 130         bfa_ioc_disable_cbfn_t  disable_cbfn;
 131         bfa_ioc_hbfail_cbfn_t   hbfail_cbfn;
 132         bfa_ioc_reset_cbfn_t    reset_cbfn;
 133 };
 134
 135 /**
 136  * IOC event notification mechanism.
 137  */
 138 enum bfa_ioc_event {
 139         BFA_IOC_E_ENABLED       = 1,
 140         BFA_IOC_E_DISABLED      = 2,
 141         BFA_IOC_E_FAILED        = 3,
 142 };
 143
 144 typedef void (*bfa_ioc_notify_cbfn_t)(void *, enum bfa_ioc_event);
 145
 146 struct bfa_ioc_notify {
 147         struct list_head        qe;
 148         bfa_ioc_notify_cbfn_t   cbfn;
 149         void                    *cbarg;
 150 };
 151
 152 /**
 153  * Heartbeat failure notification queue element.
 154  */
 155 struct bfa_ioc_hbfail_notify {
 156         struct list_head        qe;
 157         bfa_ioc_hbfail_cbfn_t   cbfn;
 158         void                    *cbarg;
 159 };
 160
 161 /**
 162  * Initialize a heartbeat failure notification structure
 163  */
 164 #define bfa_ioc_notify_init(__notify, __cbfn, __cbarg) do {     \
 165         (__notify)->cbfn = (__cbfn);                            \
 166         (__notify)->cbarg = (__cbarg);                          \
 167 } while (0)
 168
 169 struct bfa_iocpf {
 170         bfa_fsm_t               fsm;
 171         struct bfa_ioc          *ioc;
 172         u32                     retry_count;
 173         bool                    auto_recover;
 174 };
 175
 176 struct bfa_ioc {
 177         bfa_fsm_t               fsm;
 178         struct bfa              *bfa;
 179         struct bfa_pcidev       pcidev;
 180         struct timer_list       ioc_timer;
 181         struct timer_list       iocpf_timer;
 182         struct timer_list       sem_timer;
 183         struct timer_list       hb_timer;
 184         u32                     hb_count;
 185         struct list_head        notify_q;
 186         void                    *dbg_fwsave;
 187         int                     dbg_fwsave_len;
 188         bool                    dbg_fwsave_once;
 189         enum bfi_mclass         ioc_mc;
 190         struct bfa_ioc_regs     ioc_regs;
 191         struct bfa_ioc_drv_stats stats;
 192         bool                    fcmode;
 193         bool                    ctdev;
 194         bool                    cna;
 195         bool                    pllinit;
 196         bool                    stats_busy;     /*!< outstanding stats */
 197         u8                      port_id;
 198
 199         struct bfa_dma          attr_dma;
 200         struct bfi_ioc_attr     *attr;
 201         struct bfa_ioc_cbfn     *cbfn;
 202         struct bfa_ioc_mbox_mod mbox_mod;
 203         struct bfa_ioc_hwif     *ioc_hwif;
 204         struct bfa_iocpf        iocpf;
 205 };
 206
 207 struct bfa_ioc_hwif {
 208         enum bfa_status (*ioc_pll_init) (void __iomem *rb, bool fcmode);
 209         bool            (*ioc_firmware_lock)    (struct bfa_ioc *ioc);
 210         void            (*ioc_firmware_unlock)  (struct bfa_ioc *ioc);
 211         void            (*ioc_reg_init) (struct bfa_ioc *ioc);
 212         void            (*ioc_map_port) (struct bfa_ioc *ioc);
 213         void            (*ioc_isr_mode_set)     (struct bfa_ioc *ioc,
 214                                         bool msix);
 215         void            (*ioc_notify_fail)      (struct bfa_ioc *ioc);
 216         void            (*ioc_ownership_reset)  (struct bfa_ioc *ioc);
 217         bool            (*ioc_sync_start)       (struct bfa_ioc *ioc);
 218         void            (*ioc_sync_join)        (struct bfa_ioc *ioc);
 219         void            (*ioc_sync_leave)       (struct bfa_ioc *ioc);
 220         void            (*ioc_sync_ack)         (struct bfa_ioc *ioc);
 221         bool            (*ioc_sync_complete)    (struct bfa_ioc *ioc);
 222 };
 223
 224 #define bfa_ioc_pcifn(__ioc)            ((__ioc)->pcidev.pci_func)
 225 #define bfa_ioc_devid(__ioc)            ((__ioc)->pcidev.device_id)
 226 #define bfa_ioc_bar0(__ioc)             ((__ioc)->pcidev.pci_bar_kva)
 227 #define bfa_ioc_portid(__ioc)           ((__ioc)->port_id)
 228 #define bfa_ioc_fetch_stats(__ioc, __stats) \
 229                 (((__stats)->drv_stats) = (__ioc)->stats)
 230 #define bfa_ioc_clr_stats(__ioc)        \
 231                 memset(&(__ioc)->stats, 0, sizeof((__ioc)->stats))
 232 #define bfa_ioc_maxfrsize(__ioc)        ((__ioc)->attr->maxfrsize)
 233 #define bfa_ioc_rx_bbcredit(__ioc)      ((__ioc)->attr->rx_bbcredit)
 234 #define bfa_ioc_speed_sup(__ioc)        \
 235         BFI_ADAPTER_GETP(SPEED, (__ioc)->attr->adapter_prop)
 236 #define bfa_ioc_get_nports(__ioc)       \
 237         BFI_ADAPTER_GETP(NPORTS, (__ioc)->attr->adapter_prop)
 238
 239 #define bfa_ioc_stats(_ioc, _stats)     ((_ioc)->stats._stats++)
 240 #define bfa_ioc_stats_hb_count(_ioc, _hb_count) \
 241         ((_ioc)->stats.hb_count = (_hb_count))
 242 #define BFA_IOC_FWIMG_MINSZ     (16 * 1024)
 243 #define BFA_IOC_FWIMG_TYPE(__ioc)                                       \
 244         (((__ioc)->ctdev) ?                                             \
 245          (((__ioc)->fcmode) ? BFI_IMAGE_CT_FC : BFI_IMAGE_CT_CNA) :     \
 246          BFI_IMAGE_CB_FC)
 247 #define BFA_IOC_FW_SMEM_SIZE(__ioc)                                     \
 248         (((__ioc)->ctdev) ? BFI_SMEM_CT_SIZE : BFI_SMEM_CB_SIZE)
 249 #define BFA_IOC_FLASH_CHUNK_NO(off)             (off / BFI_FLASH_CHUNK_SZ_WORDS)
 250 #define BFA_IOC_FLASH_OFFSET_IN_CHUNK(off)      (off % BFI_FLASH_CHUNK_SZ_WORDS)
 251 #define BFA_IOC_FLASH_CHUNK_ADDR(chunkno)  (chunkno * BFI_FLASH_CHUNK_SZ_WORDS)
 252
 253 /**
 254  * IOC mailbox interface
 255  */
 256 void bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd);
 257 void bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc);
 258 void bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
 259                 bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg);
 260
 261 /**
 262  * IOC interfaces
 263  */
 264
 265 #define bfa_ioc_pll_init_asic(__ioc) \
 266         ((__ioc)->ioc_hwif->ioc_pll_init((__ioc)->pcidev.pci_bar_kva, \
 267                            (__ioc)->fcmode))
 268
 269 #define bfa_ioc_isr_mode_set(__ioc, __msix)                     \
 270                         ((__ioc)->ioc_hwif->ioc_isr_mode_set(__ioc, __msix))
 271 #define bfa_ioc_ownership_reset(__ioc)                          \
 272                         ((__ioc)->ioc_hwif->ioc_ownership_reset(__ioc))
 273
 274 void bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc);
 275
 276 void bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa,
 277                 struct bfa_ioc_cbfn *cbfn);
 278 void bfa_nw_ioc_auto_recover(bool auto_recover);
 279 void bfa_nw_ioc_detach(struct bfa_ioc *ioc);
 280 void bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
 281                 enum bfi_mclass mc);
 282 u32 bfa_nw_ioc_meminfo(void);
 283 void bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc,  u8 *dm_kva, u64 dm_pa);
 284 void bfa_nw_ioc_enable(struct bfa_ioc *ioc);
 285 void bfa_nw_ioc_disable(struct bfa_ioc *ioc);
 286
 287 void bfa_nw_ioc_error_isr(struct bfa_ioc *ioc);
 288 bool bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc);
 289 void bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr);
 290 void bfa_nw_ioc_notify_register(struct bfa_ioc *ioc,
 291         struct bfa_ioc_notify *notify);
 292 bool bfa_nw_ioc_sem_get(void __iomem *sem_reg);
 293 void bfa_nw_ioc_sem_release(void __iomem *sem_reg);
 294 void bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc);
 295 void bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc,
 296                         struct bfi_ioc_image_hdr *fwhdr);
 297 bool bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc,
 298                         struct bfi_ioc_image_hdr *fwhdr);
 299 mac_t bfa_nw_ioc_get_mac(struct bfa_ioc *ioc);
 300
 301 /*
 302  * Timeout APIs
 303  */
 304 void bfa_nw_ioc_timeout(void *ioc);
 305 void bfa_nw_ioc_hb_check(void *ioc);
 306 void bfa_nw_iocpf_timeout(void *ioc);
 307 void bfa_nw_iocpf_sem_timeout(void *ioc);
 308
 309 /*
 310  * F/W Image Size & Chunk
 311  */
 312 u32 *bfa_cb_image_get_chunk(int type, u32 off);
 313 u32 bfa_cb_image_get_size(int type);
 314
 315 #endif /* __BFA_IOC_H__ */