The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/mfi/mfivar.h

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    1 /*-
    2  * Copyright (c) 2006 IronPort Systems
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 /*-
   27  * Copyright (c) 2007 LSI Corp.
   28  * Copyright (c) 2007 Rajesh Prabhakaran.
   29  * All rights reserved.
   30  *
   31  * Redistribution and use in source and binary forms, with or without
   32  * modification, are permitted provided that the following conditions
   33  * are met:
   34  * 1. Redistributions of source code must retain the above copyright
   35  *    notice, this list of conditions and the following disclaimer.
   36  * 2. Redistributions in binary form must reproduce the above copyright
   37  *    notice, this list of conditions and the following disclaimer in the
   38  *    documentation and/or other materials provided with the distribution.
   39  *
   40  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   50  * SUCH DAMAGE.
   51  */
   52 
   53 #ifndef _MFIVAR_H
   54 #define _MFIVAR_H
   55 
   56 #include <sys/cdefs.h>
   57 __FBSDID("$FreeBSD: stable/11/sys/dev/mfi/mfivar.h 331722 2018-03-29 02:50:57Z eadler $");
   58 
   59 #include <sys/lock.h>
   60 #include <sys/sx.h>
   61 
   62 #include <sys/types.h>
   63 #include <sys/taskqueue.h>
   64 #include "opt_mfi.h"
   65 
   66 /*
   67  * SCSI structures and definitions are used from here, but no linking
   68  * requirements are made to CAM.
   69  */
   70 #include <cam/scsi/scsi_all.h>
   71 
   72 struct mfi_hwcomms {
   73         uint32_t                hw_pi;
   74         uint32_t                hw_ci;
   75         uint32_t                hw_reply_q[1];
   76 };
   77 #define MEGASAS_MAX_NAME        32
   78 #define MEGASAS_VERSION         "4.23"
   79 
   80 struct mfi_softc;
   81 struct disk;
   82 struct ccb_hdr;
   83 
   84 struct mfi_command {
   85         TAILQ_ENTRY(mfi_command) cm_link;
   86         time_t                  cm_timestamp;
   87         struct mfi_softc        *cm_sc;
   88         union mfi_frame         *cm_frame;
   89         bus_addr_t              cm_frame_busaddr;
   90         struct mfi_sense        *cm_sense;
   91         bus_addr_t              cm_sense_busaddr;
   92         bus_dmamap_t            cm_dmamap;
   93         union mfi_sgl           *cm_sg;
   94         void                    *cm_data;
   95         int                     cm_len;
   96         int                     cm_stp_len;
   97         int                     cm_total_frame_size;
   98         int                     cm_extra_frames;
   99         int                     cm_flags;
  100 #define MFI_CMD_MAPPED          (1<<0)
  101 #define MFI_CMD_DATAIN          (1<<1)
  102 #define MFI_CMD_DATAOUT         (1<<2)
  103 #define MFI_CMD_COMPLETED       (1<<3)
  104 #define MFI_CMD_POLLED          (1<<4)
  105 #define MFI_CMD_SCSI            (1<<5)
  106 #define MFI_CMD_CCB             (1<<6)
  107 #define MFI_CMD_BIO             (1<<7)
  108 #define MFI_CMD_TBOLT           (1<<8)
  109 #define MFI_ON_MFIQ_FREE        (1<<9)
  110 #define MFI_ON_MFIQ_READY       (1<<10)
  111 #define MFI_ON_MFIQ_BUSY        (1<<11)
  112 #define MFI_ON_MFIQ_MASK        (MFI_ON_MFIQ_FREE | MFI_ON_MFIQ_READY| \
  113     MFI_ON_MFIQ_BUSY)
  114 #define MFI_CMD_FLAGS_FMT       "\2" \
  115     "\1MAPPED" \
  116     "\2DATAIN" \
  117     "\3DATAOUT" \
  118     "\4COMPLETED" \
  119     "\5POLLED" \
  120     "\6SCSI" \
  121     "\7BIO" \
  122     "\10TBOLT" \
  123     "\11Q_FREE" \
  124     "\12Q_READY" \
  125     "\13Q_BUSY"
  126         uint8_t                 retry_for_fw_reset;
  127         void                    (* cm_complete)(struct mfi_command *cm);
  128         void                    *cm_private;
  129         int                     cm_index;
  130         int                     cm_error;
  131 };
  132 
  133 struct mfi_disk {
  134         TAILQ_ENTRY(mfi_disk)   ld_link;
  135         device_t        ld_dev;
  136         int             ld_id;
  137         int             ld_unit;
  138         struct mfi_softc *ld_controller;
  139         struct mfi_ld_info      *ld_info;
  140         struct disk     *ld_disk;
  141         int             ld_flags;
  142 #define MFI_DISK_FLAGS_OPEN     0x01
  143 #define MFI_DISK_FLAGS_DISABLED 0x02
  144 };
  145 
  146 struct mfi_disk_pending {
  147         TAILQ_ENTRY(mfi_disk_pending)   ld_link;
  148         int             ld_id;
  149 };
  150 
  151 struct mfi_system_pd {
  152         TAILQ_ENTRY(mfi_system_pd) pd_link;
  153         device_t        pd_dev;
  154         int             pd_id;
  155         int             pd_unit;
  156         struct mfi_softc *pd_controller;
  157         struct mfi_pd_info *pd_info;
  158         struct disk     *pd_disk;
  159         int             pd_flags;
  160 };
  161 
  162 struct mfi_system_pending {
  163         TAILQ_ENTRY(mfi_system_pending) pd_link;
  164         int             pd_id;
  165 };
  166 
  167 struct mfi_evt_queue_elm {
  168         TAILQ_ENTRY(mfi_evt_queue_elm)  link;
  169         struct mfi_evt_detail           detail;
  170 };
  171 
  172 struct mfi_aen {
  173         TAILQ_ENTRY(mfi_aen) aen_link;
  174         struct proc                     *p;
  175 };
  176 
  177 struct mfi_skinny_dma_info {
  178         bus_dma_tag_t                   dmat[514];
  179         bus_dmamap_t                    dmamap[514];
  180         uint32_t                        mem[514];
  181         int                             noofmaps;
  182 };
  183 
  184 struct megasas_sge
  185 {
  186         bus_addr_t                      phys_addr;
  187         uint32_t                        length;
  188 };
  189 
  190 struct mfi_cmd_tbolt;
  191 
  192 struct mfi_softc {
  193         device_t                        mfi_dev;
  194         int                             mfi_flags;
  195 #define MFI_FLAGS_SG64          (1<<0)
  196 #define MFI_FLAGS_QFRZN         (1<<1)
  197 #define MFI_FLAGS_OPEN          (1<<2)
  198 #define MFI_FLAGS_STOP          (1<<3)
  199 #define MFI_FLAGS_1064R         (1<<4)
  200 #define MFI_FLAGS_1078          (1<<5)
  201 #define MFI_FLAGS_GEN2          (1<<6)
  202 #define MFI_FLAGS_SKINNY        (1<<7)
  203 #define MFI_FLAGS_TBOLT         (1<<8)
  204 #define MFI_FLAGS_MRSAS         (1<<9)
  205 #define MFI_FLAGS_INVADER       (1<<10)
  206 #define MFI_FLAGS_FURY          (1<<11)
  207         // Start: LSIP200113393
  208         bus_dma_tag_t                   verbuf_h_dmat;
  209         bus_dmamap_t                    verbuf_h_dmamap;
  210         bus_addr_t                      verbuf_h_busaddr;
  211         uint32_t                        *verbuf;
  212         void                            *kbuff_arr[MAX_IOCTL_SGE];
  213         bus_dma_tag_t                   mfi_kbuff_arr_dmat[2];
  214         bus_dmamap_t                    mfi_kbuff_arr_dmamap[2];
  215         bus_addr_t                      mfi_kbuff_arr_busaddr[2];
  216 
  217         struct mfi_hwcomms              *mfi_comms;
  218         TAILQ_HEAD(,mfi_command)        mfi_free;
  219         TAILQ_HEAD(,mfi_command)        mfi_ready;
  220         TAILQ_HEAD(BUSYQ,mfi_command)   mfi_busy;
  221         struct bio_queue_head           mfi_bioq;
  222         struct mfi_qstat                mfi_qstat[MFIQ_COUNT];
  223 
  224         struct resource                 *mfi_regs_resource;
  225         bus_space_handle_t              mfi_bhandle;
  226         bus_space_tag_t                 mfi_btag;
  227         int                             mfi_regs_rid;
  228 
  229         bus_dma_tag_t                   mfi_parent_dmat;
  230         bus_dma_tag_t                   mfi_buffer_dmat;
  231 
  232         bus_dma_tag_t                   mfi_comms_dmat;
  233         bus_dmamap_t                    mfi_comms_dmamap;
  234         bus_addr_t                      mfi_comms_busaddr;
  235 
  236         bus_dma_tag_t                   mfi_frames_dmat;
  237         bus_dmamap_t                    mfi_frames_dmamap;
  238         bus_addr_t                      mfi_frames_busaddr;
  239         union mfi_frame                 *mfi_frames;
  240 
  241         bus_dma_tag_t                   mfi_tb_init_dmat;
  242         bus_dmamap_t                    mfi_tb_init_dmamap;
  243         bus_addr_t                      mfi_tb_init_busaddr;
  244         bus_addr_t                      mfi_tb_ioc_init_busaddr;
  245         union mfi_frame                 *mfi_tb_init;
  246 
  247         TAILQ_HEAD(,mfi_evt_queue_elm)  mfi_evt_queue;
  248         struct task                     mfi_evt_task;
  249         struct task                     mfi_map_sync_task;
  250         TAILQ_HEAD(,mfi_aen)            mfi_aen_pids;
  251         struct mfi_command              *mfi_aen_cm;
  252         struct mfi_command              *mfi_skinny_cm;
  253         struct mfi_command              *mfi_map_sync_cm;
  254         int                             cm_aen_abort;
  255         int                             cm_map_abort;
  256         uint32_t                        mfi_aen_triggered;
  257         uint32_t                        mfi_poll_waiting;
  258         uint32_t                        mfi_boot_seq_num;
  259         struct selinfo                  mfi_select;
  260         int                             mfi_delete_busy_volumes;
  261         int                             mfi_keep_deleted_volumes;
  262         int                             mfi_detaching;
  263 
  264         bus_dma_tag_t                   mfi_sense_dmat;
  265         bus_dmamap_t                    mfi_sense_dmamap;
  266         bus_addr_t                      mfi_sense_busaddr;
  267         struct mfi_sense                *mfi_sense;
  268 
  269         struct resource                 *mfi_irq;
  270         void                            *mfi_intr;
  271         int                             mfi_irq_rid;
  272 
  273         struct intr_config_hook         mfi_ich;
  274         eventhandler_tag                eh;
  275         /* OCR flags */
  276         uint8_t adpreset;
  277         uint8_t issuepend_done;
  278         uint8_t disableOnlineCtrlReset;
  279         uint32_t mfiStatus;
  280         uint32_t last_seq_num;
  281         uint32_t volatile hw_crit_error;
  282 
  283         /*
  284          * Allocation for the command array.  Used as an indexable array to
  285          * recover completed commands.
  286          */
  287         struct mfi_command              *mfi_commands;
  288         /*
  289          * How many commands the firmware can handle.  Also how big the reply
  290          * queue is, minus 1.
  291          */
  292         int                             mfi_max_fw_cmds;
  293         /*
  294          * How many S/G elements we'll ever actually use
  295          */
  296         int                             mfi_max_sge;
  297         /*
  298          * How many bytes a compound frame is, including all of the extra frames
  299          * that are used for S/G elements.
  300          */
  301         int                             mfi_cmd_size;
  302         /*
  303          * How large an S/G element is.  Used to calculate the number of single
  304          * frames in a command.
  305          */
  306         int                             mfi_sge_size;
  307         /*
  308          * Max number of sectors that the firmware allows
  309          */
  310         uint32_t                        mfi_max_io;
  311 
  312         TAILQ_HEAD(,mfi_disk)           mfi_ld_tqh;
  313         TAILQ_HEAD(,mfi_system_pd)      mfi_syspd_tqh;
  314         TAILQ_HEAD(,mfi_disk_pending)   mfi_ld_pend_tqh;
  315         TAILQ_HEAD(,mfi_system_pending) mfi_syspd_pend_tqh;
  316         eventhandler_tag                mfi_eh;
  317         struct cdev                     *mfi_cdev;
  318 
  319         TAILQ_HEAD(, ccb_hdr)           mfi_cam_ccbq;
  320         struct mfi_command *            (* mfi_cam_start)(void *);
  321         void                            (*mfi_cam_rescan_cb)(struct mfi_softc *,
  322                                             uint32_t);
  323         struct callout                  mfi_watchdog_callout;
  324         struct mtx                      mfi_io_lock;
  325         struct sx                       mfi_config_lock;
  326 
  327         /* Controller type specific interfaces */
  328         void    (*mfi_enable_intr)(struct mfi_softc *sc);
  329         void    (*mfi_disable_intr)(struct mfi_softc *sc);
  330         int32_t (*mfi_read_fw_status)(struct mfi_softc *sc);
  331         int     (*mfi_check_clear_intr)(struct mfi_softc *sc);
  332         void    (*mfi_issue_cmd)(struct mfi_softc *sc, bus_addr_t bus_add,
  333                     uint32_t frame_cnt);
  334         int     (*mfi_adp_reset)(struct mfi_softc *sc);
  335         int     (*mfi_adp_check_reset)(struct mfi_softc *sc);
  336         void                            (*mfi_intr_ptr)(void *sc);
  337 
  338         /* ThunderBolt */
  339         uint32_t                        mfi_tbolt;
  340         uint32_t                        MFA_enabled;
  341         /* Single Reply structure size */
  342         uint16_t                        reply_size;
  343         /* Singler message size. */
  344         uint16_t                        raid_io_msg_size;
  345         TAILQ_HEAD(TB, mfi_cmd_tbolt)   mfi_cmd_tbolt_tqh;
  346         /* ThunderBolt base contiguous memory mapping. */
  347         bus_dma_tag_t                   mfi_tb_dmat;
  348         bus_dmamap_t                    mfi_tb_dmamap;
  349         bus_addr_t                      mfi_tb_busaddr;
  350         /* ThunderBolt Contiguous DMA memory Mapping */
  351         uint8_t *                       request_message_pool;
  352         uint8_t *                       request_message_pool_align;
  353         uint8_t *                       request_desc_pool;
  354         bus_addr_t                      request_msg_busaddr;
  355         bus_addr_t                      reply_frame_busaddr;
  356         bus_addr_t                      sg_frame_busaddr;
  357         /* ThunderBolt IOC Init Descriptor */
  358         bus_dma_tag_t                   mfi_tb_ioc_init_dmat;
  359         bus_dmamap_t                    mfi_tb_ioc_init_dmamap;
  360         uint8_t *                       mfi_tb_ioc_init_desc;
  361         struct mfi_cmd_tbolt            **mfi_cmd_pool_tbolt;
  362         /* Virtual address of reply Frame Pool */
  363         struct mfi_mpi2_reply_header*   reply_frame_pool;
  364         struct mfi_mpi2_reply_header*   reply_frame_pool_align;
  365 
  366         /* Last reply frame address */
  367         uint8_t *                       reply_pool_limit;
  368         uint16_t                        last_reply_idx;
  369         uint8_t                         max_SGEs_in_chain_message;
  370         uint8_t                         max_SGEs_in_main_message;
  371         uint8_t                         chain_offset_value_for_main_message;
  372         uint8_t                         chain_offset_value_for_mpt_ptmsg;
  373 };
  374 
  375 union desc_value {
  376         uint64_t        word;
  377         struct {
  378                 uint32_t        low;
  379                 uint32_t        high;
  380         }u;
  381 };
  382 
  383 // TODO find the right definition
  384 #define XXX_MFI_CMD_OP_INIT2                    0x9
  385 /*
  386  * Request descriptor types
  387  */
  388 #define MFI_REQ_DESCRIPT_FLAGS_LD_IO           0x7
  389 #define MFI_REQ_DESCRIPT_FLAGS_MFA             0x1
  390 #define MFI_REQ_DESCRIPT_FLAGS_TYPE_SHIFT       0x1
  391 #define MFI_FUSION_FP_DEFAULT_TIMEOUT           0x14
  392 #define MFI_LOAD_BALANCE_FLAG                   0x1
  393 #define MFI_DCMD_MBOX_PEND_FLAG                 0x1
  394 
  395 //#define MR_PROT_INFO_TYPE_CONTROLLER  0x08
  396 #define MEGASAS_SCSI_VARIABLE_LENGTH_CMD        0x7f
  397 #define MEGASAS_SCSI_SERVICE_ACTION_READ32      0x9
  398 #define MEGASAS_SCSI_SERVICE_ACTION_WRITE32     0xB
  399 #define MEGASAS_SCSI_ADDL_CDB_LEN               0x18
  400 #define MEGASAS_RD_WR_PROTECT_CHECK_ALL         0x20
  401 #define MEGASAS_RD_WR_PROTECT_CHECK_NONE        0x60
  402 #define MEGASAS_EEDPBLOCKSIZE                   512
  403 struct mfi_cmd_tbolt {
  404         union mfi_mpi2_request_descriptor *request_desc;
  405         struct mfi_mpi2_request_raid_scsi_io *io_request;
  406         bus_addr_t              io_request_phys_addr;
  407         bus_addr_t              sg_frame_phys_addr;
  408         bus_addr_t              sense_phys_addr;
  409         MPI2_SGE_IO_UNION       *sg_frame;
  410         uint8_t                 *sense;
  411         TAILQ_ENTRY(mfi_cmd_tbolt) next;
  412         /*
  413          * Context for a MFI frame.
  414          * Used to get the mfi cmd from list when a MFI cmd is completed
  415          */
  416         uint32_t                sync_cmd_idx;
  417         uint16_t                index;
  418         uint8_t                 status;
  419 };
  420 
  421 extern int mfi_attach(struct mfi_softc *);
  422 extern void mfi_free(struct mfi_softc *);
  423 extern int mfi_shutdown(struct mfi_softc *);
  424 extern void mfi_startio(struct mfi_softc *);
  425 extern void mfi_disk_complete(struct bio *);
  426 extern int mfi_disk_disable(struct mfi_disk *);
  427 extern void mfi_disk_enable(struct mfi_disk *);
  428 extern int mfi_dump_blocks(struct mfi_softc *, int id, uint64_t, void *, int);
  429 extern int mfi_syspd_disable(struct mfi_system_pd *);
  430 extern void mfi_syspd_enable(struct mfi_system_pd *);
  431 extern int mfi_dump_syspd_blocks(struct mfi_softc *, int id, uint64_t, void *,
  432     int);
  433 extern int mfi_transition_firmware(struct mfi_softc *sc);
  434 extern int mfi_aen_setup(struct mfi_softc *sc, uint32_t seq_start);
  435 extern void mfi_complete(struct mfi_softc *sc, struct mfi_command *cm);
  436 extern int mfi_mapcmd(struct mfi_softc *sc,struct mfi_command *cm);
  437 extern int mfi_wait_command(struct mfi_softc *sc, struct mfi_command *cm);
  438 extern void mfi_tbolt_enable_intr_ppc(struct mfi_softc *);
  439 extern void mfi_tbolt_disable_intr_ppc(struct mfi_softc *);
  440 extern int32_t mfi_tbolt_read_fw_status_ppc(struct mfi_softc *);
  441 extern int32_t mfi_tbolt_check_clear_intr_ppc(struct mfi_softc *);
  442 extern void mfi_tbolt_issue_cmd_ppc(struct mfi_softc *, bus_addr_t, uint32_t);
  443 extern void mfi_tbolt_init_globals(struct mfi_softc*);
  444 extern uint32_t mfi_tbolt_get_memory_requirement(struct mfi_softc *);
  445 extern int mfi_tbolt_init_desc_pool(struct mfi_softc *, uint8_t *, uint32_t);
  446 extern int mfi_tbolt_init_MFI_queue(struct mfi_softc *);
  447 extern void mfi_intr_tbolt(void *arg);
  448 extern int mfi_tbolt_alloc_cmd(struct mfi_softc *sc);
  449 extern int mfi_tbolt_send_frame(struct mfi_softc *sc, struct mfi_command *cm);
  450 extern int mfi_tbolt_adp_reset(struct mfi_softc *sc);
  451 extern int mfi_tbolt_reset(struct mfi_softc *sc);
  452 extern void mfi_tbolt_sync_map_info(struct mfi_softc *sc);
  453 extern void mfi_handle_map_sync(void *context, int pending);
  454 extern int mfi_dcmd_command(struct mfi_softc *, struct mfi_command **,
  455      uint32_t, void **, size_t);
  456 extern int mfi_build_cdb(int, uint8_t, u_int64_t, u_int32_t, uint8_t *);
  457 
  458 #define MFIQ_ADD(sc, qname)                                     \
  459         do {                                                    \
  460                 struct mfi_qstat *qs;                           \
  461                                                                 \
  462                 qs = &(sc)->mfi_qstat[qname];                   \
  463                 qs->q_length++;                                 \
  464                 if (qs->q_length > qs->q_max)                   \
  465                         qs->q_max = qs->q_length;               \
  466         } while (0)
  467 
  468 #define MFIQ_REMOVE(sc, qname)  (sc)->mfi_qstat[qname].q_length--
  469 
  470 #define MFIQ_INIT(sc, qname)                                    \
  471         do {                                                    \
  472                 sc->mfi_qstat[qname].q_length = 0;              \
  473                 sc->mfi_qstat[qname].q_max = 0;                 \
  474         } while (0)
  475 
  476 #define MFIQ_COMMAND_QUEUE(name, index)                                 \
  477         static __inline void                                            \
  478         mfi_initq_ ## name (struct mfi_softc *sc)                       \
  479         {                                                               \
  480                 TAILQ_INIT(&sc->mfi_ ## name);                          \
  481                 MFIQ_INIT(sc, index);                                   \
  482         }                                                               \
  483         static __inline void                                            \
  484         mfi_enqueue_ ## name (struct mfi_command *cm)                   \
  485         {                                                               \
  486                 if ((cm->cm_flags & MFI_ON_MFIQ_MASK) != 0) {           \
  487                         panic("command %p is on another queue, "        \
  488                             "flags = %#x\n", cm, cm->cm_flags);         \
  489                 }                                                       \
  490                 TAILQ_INSERT_TAIL(&cm->cm_sc->mfi_ ## name, cm, cm_link); \
  491                 cm->cm_flags |= MFI_ON_ ## index;                       \
  492                 MFIQ_ADD(cm->cm_sc, index);                             \
  493         }                                                               \
  494         static __inline void                                            \
  495         mfi_requeue_ ## name (struct mfi_command *cm)                   \
  496         {                                                               \
  497                 if ((cm->cm_flags & MFI_ON_MFIQ_MASK) != 0) {           \
  498                         panic("command %p is on another queue, "        \
  499                             "flags = %#x\n", cm, cm->cm_flags);         \
  500                 }                                                       \
  501                 TAILQ_INSERT_HEAD(&cm->cm_sc->mfi_ ## name, cm, cm_link); \
  502                 cm->cm_flags |= MFI_ON_ ## index;                       \
  503                 MFIQ_ADD(cm->cm_sc, index);                             \
  504         }                                                               \
  505         static __inline struct mfi_command *                            \
  506         mfi_dequeue_ ## name (struct mfi_softc *sc)                     \
  507         {                                                               \
  508                 struct mfi_command *cm;                                 \
  509                                                                         \
  510                 if ((cm = TAILQ_FIRST(&sc->mfi_ ## name)) != NULL) {    \
  511                         if ((cm->cm_flags & MFI_ON_ ## index) == 0) {   \
  512                                 panic("command %p not in queue, "       \
  513                                     "flags = %#x, bit = %#x\n", cm,     \
  514                                     cm->cm_flags, MFI_ON_ ## index);    \
  515                         }                                               \
  516                         TAILQ_REMOVE(&sc->mfi_ ## name, cm, cm_link);   \
  517                         cm->cm_flags &= ~MFI_ON_ ## index;              \
  518                         MFIQ_REMOVE(sc, index);                         \
  519                 }                                                       \
  520                 return (cm);                                            \
  521         }                                                               \
  522         static __inline void                                            \
  523         mfi_remove_ ## name (struct mfi_command *cm)                    \
  524         {                                                               \
  525                 if ((cm->cm_flags & MFI_ON_ ## index) == 0) {           \
  526                         panic("command %p not in queue, flags = %#x, " \
  527                             "bit = %#x\n", cm, cm->cm_flags,            \
  528                             MFI_ON_ ## index);                          \
  529                 }                                                       \
  530                 TAILQ_REMOVE(&cm->cm_sc->mfi_ ## name, cm, cm_link);    \
  531                 cm->cm_flags &= ~MFI_ON_ ## index;                      \
  532                 MFIQ_REMOVE(cm->cm_sc, index);                          \
  533         }                                                               \
  534 struct hack
  535 
  536 MFIQ_COMMAND_QUEUE(free, MFIQ_FREE);
  537 MFIQ_COMMAND_QUEUE(ready, MFIQ_READY);
  538 MFIQ_COMMAND_QUEUE(busy, MFIQ_BUSY);
  539 
  540 static __inline void
  541 mfi_initq_bio(struct mfi_softc *sc)
  542 {
  543         bioq_init(&sc->mfi_bioq);
  544         MFIQ_INIT(sc, MFIQ_BIO);
  545 }
  546 
  547 static __inline void
  548 mfi_enqueue_bio(struct mfi_softc *sc, struct bio *bp)
  549 {
  550         bioq_insert_tail(&sc->mfi_bioq, bp);
  551         MFIQ_ADD(sc, MFIQ_BIO);
  552 }
  553 
  554 static __inline struct bio *
  555 mfi_dequeue_bio(struct mfi_softc *sc)
  556 {
  557         struct bio *bp;
  558 
  559         if ((bp = bioq_first(&sc->mfi_bioq)) != NULL) {
  560                 bioq_remove(&sc->mfi_bioq, bp);
  561                 MFIQ_REMOVE(sc, MFIQ_BIO);
  562         }
  563         return (bp);
  564 }
  565 
  566 /*
  567  * This is from the original scsi_extract_sense() in CAM.  It's copied
  568  * here because CAM now uses a non-inline version that follows more complex
  569  * additions to the SPC spec, and we don't want to force a dependency on
  570  * the CAM module for such a trivial action.
  571  */
  572 static __inline void
  573 mfi_extract_sense(struct scsi_sense_data_fixed *sense,
  574     int *error_code, int *sense_key, int *asc, int *ascq)
  575 {
  576 
  577         *error_code = sense->error_code & SSD_ERRCODE;
  578         *sense_key = sense->flags & SSD_KEY;
  579         *asc = (sense->extra_len >= 5) ? sense->add_sense_code : 0;
  580         *ascq = (sense->extra_len >= 6) ? sense->add_sense_code_qual : 0;
  581 }
  582 
  583 static __inline void
  584 mfi_print_sense(struct mfi_softc *sc, void *sense)
  585 {
  586         int error, key, asc, ascq;
  587 
  588         mfi_extract_sense((struct scsi_sense_data_fixed *)sense,
  589             &error, &key, &asc, &ascq);
  590         device_printf(sc->mfi_dev, "sense error %d, sense_key %d, "
  591             "asc %d, ascq %d\n", error, key, asc, ascq);
  592 }
  593 
  594 
  595 #define MFI_WRITE4(sc, reg, val)        bus_space_write_4((sc)->mfi_btag, \
  596         sc->mfi_bhandle, (reg), (val))
  597 #define MFI_READ4(sc, reg)              bus_space_read_4((sc)->mfi_btag, \
  598         (sc)->mfi_bhandle, (reg))
  599 #define MFI_WRITE2(sc, reg, val)        bus_space_write_2((sc)->mfi_btag, \
  600         sc->mfi_bhandle, (reg), (val))
  601 #define MFI_READ2(sc, reg)              bus_space_read_2((sc)->mfi_btag, \
  602         (sc)->mfi_bhandle, (reg))
  603 #define MFI_WRITE1(sc, reg, val)        bus_space_write_1((sc)->mfi_btag, \
  604         sc->mfi_bhandle, (reg), (val))
  605 #define MFI_READ1(sc, reg)              bus_space_read_1((sc)->mfi_btag, \
  606         (sc)->mfi_bhandle, (reg))
  607 
  608 MALLOC_DECLARE(M_MFIBUF);
  609 SYSCTL_DECL(_hw_mfi);
  610 
  611 #define MFI_RESET_WAIT_TIME 180
  612 #define MFI_CMD_TIMEOUT 30
  613 #define MFI_SYS_PD_IO   0
  614 #define MFI_LD_IO       1
  615 #define MFI_SKINNY_MEMORY 0x02000000
  616 #define MFI_MAXPHYS (128 * 1024)
  617 
  618 #ifdef MFI_DEBUG
  619 extern void mfi_print_cmd(struct mfi_command *cm);
  620 extern void mfi_dump_cmds(struct mfi_softc *sc);
  621 extern void mfi_validate_sg(struct mfi_softc *, struct mfi_command *,
  622     const char *, int);
  623 #define MFI_PRINT_CMD(cm)       mfi_print_cmd(cm)
  624 #define MFI_DUMP_CMDS(sc)       mfi_dump_cmds(sc)
  625 #define MFI_VALIDATE_CMD(sc, cm) mfi_validate_sg(sc, cm, __FUNCTION__, __LINE__)
  626 #else
  627 #define MFI_PRINT_CMD(cm)
  628 #define MFI_DUMP_CMDS(sc)
  629 #define MFI_VALIDATE_CMD(sc, cm)
  630 #endif
  631 
  632 extern void mfi_release_command(struct mfi_command *);
  633 extern void mfi_tbolt_return_cmd(struct mfi_softc *,
  634     struct mfi_cmd_tbolt *, struct mfi_command *);
  635 
  636 #endif /* _MFIVAR_H */

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