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/raid/mps/mpsvar.h

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    1 /*-
    2  * Copyright (c) 2009 Yahoo! Inc.
    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  * $FreeBSD: src/sys/dev/mps/mpsvar.h,v 1.9 2012/01/26 18:17:21 ken Exp $
   27  */
   28 /*-
   29  * Copyright (c) 2011 LSI Corp.
   30  * All rights reserved.
   31  *
   32  * Redistribution and use in source and binary forms, with or without
   33  * modification, are permitted provided that the following conditions
   34  * are met:
   35  * 1. Redistributions of source code must retain the above copyright
   36  *    notice, this list of conditions and the following disclaimer.
   37  * 2. Redistributions in binary form must reproduce the above copyright
   38  *    notice, this list of conditions and the following disclaimer in the
   39  *    documentation and/or other materials provided with the distribution.
   40  *
   41  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   51  * SUCH DAMAGE.
   52  *
   53  * LSI MPT-Fusion Host Adapter FreeBSD
   54  *
   55  * $FreeBSD: src/sys/dev/mps/mpsvar.h,v 1.9 2012/01/26 18:17:21 ken Exp $
   56  */
   57 
   58 #ifndef _MPSVAR_H
   59 #define _MPSVAR_H
   60 
   61 #define MPS_DRIVER_VERSION     "13.00.00.02-fbsd"
   62 
   63 #define MPS_DB_MAX_WAIT         2500
   64 
   65 #define MPS_REQ_FRAMES          1024
   66 #define MPS_EVT_REPLY_FRAMES    32
   67 #define MPS_REPLY_FRAMES        MPS_REQ_FRAMES
   68 #define MPS_CHAIN_FRAMES        2048
   69 #define MPS_SENSE_LEN           SSD_FULL_SIZE
   70 #define MPS_MSI_COUNT           1
   71 #define MPS_SGE64_SIZE          12
   72 #define MPS_SGE32_SIZE          8
   73 #define MPS_SGC_SIZE            8
   74 
   75 #define  CAN_SLEEP                      1
   76 #define  NO_SLEEP                       0
   77 
   78 #define MPS_PERIODIC_DELAY      1       /* 1 second heartbeat/watchdog check */
   79 
   80 #define MPS_SCSI_RI_INVALID_FRAME       (0x00000002)
   81 #define MPS_STRING_LENGTH               64
   82 
   83 /*
   84  * host mapping related macro definitions
   85  */
   86 #define MPS_MAPTABLE_BAD_IDX    0xFFFFFFFF
   87 #define MPS_DPM_BAD_IDX         0xFFFF
   88 #define MPS_ENCTABLE_BAD_IDX    0xFF
   89 #define MPS_MAX_MISSING_COUNT   0x0F
   90 #define MPS_DEV_RESERVED        0x20000000
   91 #define MPS_MAP_IN_USE          0x10000000
   92 #define MPS_RAID_CHANNEL        1
   93 #define MPS_MAP_BAD_ID          0xFFFFFFFF
   94 
   95 /*
   96  * WarpDrive controller
   97  */
   98 #define MPS_CHIP_WD_DEVICE_ID   0x007E
   99 #define MPS_WD_LSI_OEM          0x80
  100 #define MPS_WD_HIDE_EXPOSE_MASK 0x03
  101 #define MPS_WD_HIDE_ALWAYS      0x00
  102 #define MPS_WD_EXPOSE_ALWAYS    0x01
  103 #define MPS_WD_HIDE_IF_VOLUME   0x02
  104 #define MPS_WD_RETRY            0x01
  105 #define MPS_MAN_PAGE10_SIZE     0x5C    /* Hardcode for now */
  106 #define MPS_MAX_DISKS_IN_VOL    10
  107 
  108 /*
  109  * WarpDrive Event Logging
  110  */
  111 #define MPI2_WD_LOG_ENTRY       0x8002
  112 #define MPI2_WD_SSD_THROTTLING  0x0041
  113 #define MPI2_WD_DRIVE_LIFE_WARN 0x0043
  114 #define MPI2_WD_DRIVE_LIFE_DEAD 0x0044
  115 #define MPI2_WD_RAIL_MON_FAIL   0x004D
  116 
  117 typedef uint8_t u8;
  118 typedef uint16_t u16;
  119 typedef uint32_t u32;
  120 typedef uint64_t u64;
  121 
  122 /**
  123  * struct dev_mapping_table - device mapping information
  124  * @physical_id: SAS address for drives or WWID for RAID volumes
  125  * @device_info: bitfield provides detailed info about the device
  126  * @phy_bits: bitfields indicating controller phys
  127  * @dpm_entry_num: index of this device in device persistent map table
  128  * @dev_handle: device handle for the device pointed by this entry
  129  * @channel: target channel
  130  * @id: target id
  131  * @missing_count: number of times the device not detected by driver
  132  * @hide_flag: Hide this physical disk/not (foreign configuration)
  133  * @init_complete: Whether the start of the day checks completed or not
  134  */
  135 struct dev_mapping_table {
  136         u64     physical_id;
  137         u32     device_info;
  138         u32     phy_bits;
  139         u16     dpm_entry_num;
  140         u16     dev_handle;
  141         u8      reserved1;
  142         u8      channel;
  143         u16     id;
  144         u8      missing_count;
  145         u8      init_complete;
  146         u8      TLR_bits;
  147         u8      reserved2;
  148 };
  149 
  150 /**
  151  * struct enc_mapping_table -  mapping information about an enclosure
  152  * @enclosure_id: Logical ID of this enclosure
  153  * @start_index: index to the entry in dev_mapping_table
  154  * @phy_bits: bitfields indicating controller phys
  155  * @dpm_entry_num: index of this enclosure in device persistent map table
  156  * @enc_handle: device handle for the enclosure pointed by this entry
  157  * @num_slots: number of slots in the enclosure
  158  * @start_slot: Starting slot id
  159  * @missing_count: number of times the device not detected by driver
  160  * @removal_flag: used to mark the device for removal
  161  * @skip_search: used as a flag to include/exclude enclosure for search
  162  * @init_complete: Whether the start of the day checks completed or not
  163  */
  164 struct enc_mapping_table {
  165         u64     enclosure_id;
  166         u32     start_index;
  167         u32     phy_bits;
  168         u16     dpm_entry_num;
  169         u16     enc_handle;
  170         u16     num_slots;
  171         u16     start_slot;
  172         u8      missing_count;
  173         u8      removal_flag;
  174         u8      skip_search;
  175         u8      init_complete;
  176 };
  177 
  178 /**
  179  * struct map_removal_table - entries to be removed from mapping table
  180  * @dpm_entry_num: index of this device in device persistent map table
  181  * @dev_handle: device handle for the device pointed by this entry
  182  */
  183 struct map_removal_table{
  184         u16     dpm_entry_num;
  185         u16     dev_handle;
  186 };
  187 
  188 typedef struct mps_fw_diagnostic_buffer {
  189         size_t          size;
  190         uint8_t         extended_type;
  191         uint8_t         buffer_type;
  192         uint8_t         force_release;
  193         uint32_t        product_specific[23];
  194         uint8_t         immediate;
  195         uint8_t         enabled;
  196         uint8_t         valid_data;
  197         uint8_t         owned_by_firmware;
  198         uint32_t        unique_id;
  199 } mps_fw_diagnostic_buffer_t;
  200 
  201 struct mps_softc;
  202 struct mps_command;
  203 struct mpssas_softc;
  204 union ccb;
  205 struct mpssas_target;
  206 struct mps_column_map;
  207 
  208 MALLOC_DECLARE(M_MPT2);
  209 
  210 typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t,
  211     MPI2_EVENT_NOTIFICATION_REPLY *reply);
  212 typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm);
  213 
  214 struct mps_chain {
  215         TAILQ_ENTRY(mps_chain)          chain_link;
  216         MPI2_SGE_IO_UNION               *chain;
  217         uint32_t                        chain_busaddr;
  218 };
  219 
  220 /*
  221  * This needs to be at least 2 to support SMP passthrough.
  222  */
  223 #define       MPS_IOVEC_COUNT 2
  224 
  225 struct mps_command {
  226         TAILQ_ENTRY(mps_command)        cm_link;
  227         TAILQ_ENTRY(mps_command)        cm_recovery;
  228         struct mps_softc                *cm_sc;
  229         union ccb                       *cm_ccb;
  230         void                            *cm_data;
  231         u_int                           cm_length;
  232         u_int                           cm_out_len;
  233         struct uio                      cm_uio;
  234         struct iovec                    cm_iovec[MPS_IOVEC_COUNT];
  235         u_int                           cm_max_segs;
  236         u_int                           cm_sglsize;
  237         MPI2_SGE_IO_UNION               *cm_sge;
  238         uint8_t                         *cm_req;
  239         uint8_t                         *cm_reply;
  240         uint32_t                        cm_reply_data;
  241         mps_command_callback_t          *cm_complete;
  242         void                            *cm_complete_data;
  243         struct mpssas_target            *cm_targ;
  244         MPI2_REQUEST_DESCRIPTOR_UNION   cm_desc;
  245         u_int                           cm_lun;
  246         u_int                           cm_flags;
  247 #define MPS_CM_FLAGS_POLLED             (1 << 0)
  248 #define MPS_CM_FLAGS_COMPLETE           (1 << 1)
  249 #define MPS_CM_FLAGS_SGE_SIMPLE         (1 << 2)
  250 #define MPS_CM_FLAGS_DATAOUT            (1 << 3)
  251 #define MPS_CM_FLAGS_DATAIN             (1 << 4)
  252 #define MPS_CM_FLAGS_WAKEUP             (1 << 5)
  253 #define MPS_CM_FLAGS_DD_IO              (1 << 6)
  254 #define MPS_CM_FLAGS_USE_UIO            (1 << 7)
  255 #define MPS_CM_FLAGS_SMP_PASS           (1 << 8)
  256 #define MPS_CM_FLAGS_CHAIN_FAILED       (1 << 9)
  257 #define MPS_CM_FLAGS_ERROR_MASK         MPS_CM_FLAGS_CHAIN_FAILED
  258         u_int                           cm_state;
  259 #define MPS_CM_STATE_FREE               0
  260 #define MPS_CM_STATE_BUSY               1
  261 #define MPS_CM_STATE_TIMEDOUT           2
  262         bus_dmamap_t                    cm_dmamap;
  263         struct scsi_sense_data          *cm_sense;
  264         TAILQ_HEAD(, mps_chain)         cm_chain_list;
  265         uint32_t                        cm_req_busaddr;
  266         uint32_t                        cm_sense_busaddr;
  267         struct callout                  cm_callout;
  268 };
  269 
  270 struct mps_column_map {
  271         uint16_t                        dev_handle;
  272         uint8_t                         phys_disk_num;
  273 };
  274 
  275 struct mps_event_handle {
  276         TAILQ_ENTRY(mps_event_handle)   eh_list;
  277         mps_evt_callback_t              *callback;
  278         void                            *data;
  279         uint8_t                         mask[16];
  280 };
  281 
  282 struct mps_softc {
  283         device_t                        mps_dev;
  284         struct cdev                     *mps_cdev;
  285         u_int                           mps_flags;
  286 #define MPS_FLAGS_INTX          (1 << 0)
  287 #define MPS_FLAGS_MSI           (1 << 1)
  288 #define MPS_FLAGS_BUSY          (1 << 2)
  289 #define MPS_FLAGS_SHUTDOWN      (1 << 3)
  290 #define MPS_FLAGS_DIAGRESET     (1 << 4)
  291 #define MPS_FLAGS_ATTACH_DONE   (1 << 5)
  292 #define MPS_FLAGS_WD_AVAILABLE  (1 << 6)
  293         u_int                           mps_debug;
  294 #if 0 /* XXX swildner */
  295         u_int                           disable_msix;
  296 #endif
  297         u_int                           enable_msi;
  298         int                             tm_cmds_active;
  299         int                             io_cmds_active;
  300         int                             io_cmds_highwater;
  301         int                             chain_free;
  302         int                             max_chains;
  303         int                             chain_free_lowwater;
  304 #if __FreeBSD_version >= 900030
  305         uint64_t                        chain_alloc_fail;
  306 #endif
  307         struct sysctl_ctx_list          sysctl_ctx;
  308         struct sysctl_oid               *sysctl_tree;
  309         char                            fw_version[16];
  310         struct mps_command              *commands;
  311         struct mps_chain                *chains;
  312         struct callout                  periodic;
  313 
  314         struct mpssas_softc             *sassc;
  315 
  316         char                            tmp_string[MPS_STRING_LENGTH];
  317         TAILQ_HEAD(, mps_command)       req_list;
  318         TAILQ_HEAD(, mps_command)       high_priority_req_list;
  319         TAILQ_HEAD(, mps_chain)         chain_list;
  320         TAILQ_HEAD(, mps_command)       tm_list;
  321         int                             replypostindex;
  322         int                             replyfreeindex;
  323 
  324         struct resource                 *mps_regs_resource;
  325         bus_space_handle_t              mps_bhandle;
  326         bus_space_tag_t                 mps_btag;
  327         int                             mps_regs_rid;
  328 
  329         bus_dma_tag_t                   mps_parent_dmat;
  330         bus_dma_tag_t                   buffer_dmat;
  331 
  332         MPI2_IOC_FACTS_REPLY            *facts;
  333         MPI2_PORT_FACTS_REPLY           *pfacts;
  334         int                             num_reqs;
  335         int                             num_replies;
  336         int                             fqdepth;        /* Free queue */
  337         int                             pqdepth;        /* Post queue */
  338 
  339         uint8_t                         event_mask[16];
  340         TAILQ_HEAD(, mps_event_handle)  event_list;
  341         struct mps_event_handle         *mps_log_eh;
  342 
  343         struct lock                     mps_lock;
  344         struct intr_config_hook         mps_ich;
  345         struct resource                 *mps_irq[MPS_MSI_COUNT];
  346         void                            *mps_intrhand[MPS_MSI_COUNT];
  347         int                             mps_irq_rid[MPS_MSI_COUNT];
  348         int                             mps_irq_type[MPS_MSI_COUNT];
  349 
  350         uint8_t                         *req_frames;
  351         bus_addr_t                      req_busaddr;
  352         bus_dma_tag_t                   req_dmat;
  353         bus_dmamap_t                    req_map;
  354 
  355         uint8_t                         *reply_frames;
  356         bus_addr_t                      reply_busaddr;
  357         bus_dma_tag_t                   reply_dmat;
  358         bus_dmamap_t                    reply_map;
  359 
  360         struct scsi_sense_data          *sense_frames;
  361         bus_addr_t                      sense_busaddr;
  362         bus_dma_tag_t                   sense_dmat;
  363         bus_dmamap_t                    sense_map;
  364 
  365         uint8_t                         *chain_frames;
  366         bus_addr_t                      chain_busaddr;
  367         bus_dma_tag_t                   chain_dmat;
  368         bus_dmamap_t                    chain_map;
  369 
  370         MPI2_REPLY_DESCRIPTORS_UNION    *post_queue;
  371         bus_addr_t                      post_busaddr;
  372         uint32_t                        *free_queue;
  373         bus_addr_t                      free_busaddr;
  374         bus_dma_tag_t                   queues_dmat;
  375         bus_dmamap_t                    queues_map;
  376 
  377         uint8_t                         *fw_diag_buffer;
  378         bus_addr_t                      fw_diag_busaddr;
  379         bus_dma_tag_t                   fw_diag_dmat;
  380         bus_dmamap_t                    fw_diag_map;
  381 
  382         uint8_t                         ir_firmware;
  383 
  384         /* static config pages */
  385         Mpi2IOCPage8_t                  ioc_pg8;
  386 
  387         /* host mapping support */
  388         struct dev_mapping_table        *mapping_table;
  389         struct enc_mapping_table        *enclosure_table;
  390         struct map_removal_table        *removal_table;
  391         uint8_t                         *dpm_entry_used;
  392         uint8_t                         *dpm_flush_entry;
  393         Mpi2DriverMappingPage0_t        *dpm_pg0;
  394         uint16_t                        max_devices;
  395         uint16_t                        max_enclosures;
  396         uint16_t                        max_expanders;
  397         uint8_t                         max_volumes;
  398         uint8_t                         num_enc_table_entries;
  399         uint8_t                         num_rsvd_entries;
  400         uint8_t                         num_channels;
  401         uint16_t                        max_dpm_entries;
  402         uint8_t                         is_dpm_enable;
  403         uint8_t                         track_mapping_events;
  404         uint32_t                        pending_map_events;
  405         uint8_t                         mt_full_retry;
  406         uint8_t                         mt_add_device_failed;
  407 
  408         /* FW diag Buffer List */
  409         mps_fw_diagnostic_buffer_t
  410                                 fw_diag_buffer_list[MPI2_DIAG_BUF_TYPE_COUNT];
  411 
  412         /* Event Recording IOCTL support */
  413         uint32_t                        events_to_record[4];
  414         mps_event_entry_t               recorded_events[MPS_EVENT_QUEUE_SIZE];
  415         uint8_t                         event_index;
  416         uint32_t                        event_number;
  417 
  418         /* EEDP and TLR support */
  419         uint8_t                         eedp_enabled;
  420         uint8_t                         control_TLR;
  421 
  422         /* Shutdown Event Handler */
  423         eventhandler_tag                shutdown_eh;
  424 
  425         /* To track topo events during reset */
  426 #define MPS_DIAG_RESET_TIMEOUT  300000
  427         uint8_t                         wait_for_port_enable;
  428         uint8_t                         port_enable_complete;
  429 
  430         /* WD controller */
  431         uint8_t                         WD_valid_config;
  432         uint8_t                         WD_hide_expose;
  433 
  434         /* Direct Drive for WarpDrive */
  435         uint8_t                         DD_num_phys_disks;
  436         uint16_t                        DD_dev_handle;
  437         uint32_t                        DD_stripe_size;
  438         uint32_t                        DD_stripe_exponent;
  439         uint32_t                        DD_block_size;
  440         uint16_t                        DD_block_exponent;
  441         uint64_t                        DD_max_lba;
  442         struct mps_column_map           DD_column_map[MPS_MAX_DISKS_IN_VOL];
  443 };
  444 
  445 struct mps_config_params {
  446         MPI2_CONFIG_EXT_PAGE_HEADER_UNION       hdr;
  447         u_int           action;
  448         u_int           page_address;   /* Attributes, not a phys address */
  449         u_int           status;
  450         void            *buffer;
  451         u_int           length;
  452         int             timeout;
  453         void            (*callback)(struct mps_softc *, struct mps_config_params *);
  454         void            *cbdata;
  455 };
  456 
  457 struct scsi_read_capacity_eedp
  458 {
  459         uint8_t addr[8];
  460         uint8_t length[4];
  461         uint8_t protect;
  462 };
  463 
  464 static __inline uint32_t
  465 mps_regread(struct mps_softc *sc, uint32_t offset)
  466 {
  467         return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
  468 }
  469 
  470 static __inline void
  471 mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
  472 {
  473         bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
  474 }
  475 
  476 static __inline void
  477 mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
  478 {
  479         if (++sc->replyfreeindex >= sc->fqdepth)
  480                 sc->replyfreeindex = 0;
  481         sc->free_queue[sc->replyfreeindex] = busaddr;
  482         mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
  483 }
  484 
  485 static __inline struct mps_chain *
  486 mps_alloc_chain(struct mps_softc *sc)
  487 {
  488         struct mps_chain *chain;
  489 
  490         if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL) {
  491                 TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
  492                 sc->chain_free--;
  493                 if (sc->chain_free < sc->chain_free_lowwater)
  494                         sc->chain_free_lowwater = sc->chain_free;
  495         }
  496 #if __FreeBSD_version >= 900030
  497         else
  498                 sc->chain_alloc_fail++;
  499 #endif
  500         return (chain);
  501 }
  502 
  503 static __inline void
  504 mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
  505 {
  506 #if 0
  507         bzero(chain->chain, 128);
  508 #endif
  509         sc->chain_free++;
  510         TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
  511 }
  512 
  513 static __inline void
  514 mps_free_command(struct mps_softc *sc, struct mps_command *cm)
  515 {
  516         struct mps_chain *chain, *chain_temp;
  517 
  518         if (cm->cm_reply != NULL)
  519                 mps_free_reply(sc, cm->cm_reply_data);
  520         cm->cm_reply = NULL;
  521         cm->cm_flags = 0;
  522         cm->cm_complete = NULL;
  523         cm->cm_complete_data = NULL;
  524         cm->cm_ccb = NULL;
  525         cm->cm_targ = NULL;
  526         cm->cm_max_segs = 0;
  527         cm->cm_lun = 0;
  528         cm->cm_state = MPS_CM_STATE_FREE;
  529         cm->cm_data = NULL;
  530         cm->cm_length = 0;
  531         cm->cm_out_len = 0;
  532         cm->cm_sglsize = 0;
  533         cm->cm_sge = NULL;
  534 
  535         TAILQ_FOREACH_MUTABLE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
  536                 TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
  537                 mps_free_chain(sc, chain);
  538         }
  539         TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
  540 }
  541 
  542 static __inline struct mps_command *
  543 mps_alloc_command(struct mps_softc *sc)
  544 {
  545         struct mps_command *cm;
  546 
  547         cm = TAILQ_FIRST(&sc->req_list);
  548         if (cm == NULL)
  549                 return (NULL);
  550 
  551         TAILQ_REMOVE(&sc->req_list, cm, cm_link);
  552         KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command"));
  553         cm->cm_state = MPS_CM_STATE_BUSY;
  554         return (cm);
  555 }
  556 
  557 static __inline void
  558 mps_free_high_priority_command(struct mps_softc *sc, struct mps_command *cm)
  559 {
  560         struct mps_chain *chain, *chain_temp;
  561 
  562         if (cm->cm_reply != NULL)
  563                 mps_free_reply(sc, cm->cm_reply_data);
  564         cm->cm_reply = NULL;
  565         cm->cm_flags = 0;
  566         cm->cm_complete = NULL;
  567         cm->cm_complete_data = NULL;
  568         cm->cm_ccb = NULL;
  569         cm->cm_targ = NULL;
  570         cm->cm_lun = 0;
  571         cm->cm_state = MPS_CM_STATE_FREE;
  572         TAILQ_FOREACH_MUTABLE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
  573                 TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
  574                 mps_free_chain(sc, chain);
  575         }
  576         TAILQ_INSERT_TAIL(&sc->high_priority_req_list, cm, cm_link);
  577 }
  578 
  579 static __inline struct mps_command *
  580 mps_alloc_high_priority_command(struct mps_softc *sc)
  581 {
  582         struct mps_command *cm;
  583 
  584         cm = TAILQ_FIRST(&sc->high_priority_req_list);
  585         if (cm == NULL)
  586                 return (NULL);
  587 
  588         TAILQ_REMOVE(&sc->high_priority_req_list, cm, cm_link);
  589         KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command"));
  590         cm->cm_state = MPS_CM_STATE_BUSY;
  591         return (cm);
  592 }
  593 
  594 static __inline void
  595 mps_lock(struct mps_softc *sc)
  596 {
  597         lockmgr(&sc->mps_lock, LK_EXCLUSIVE);
  598 }
  599 
  600 static __inline void
  601 mps_unlock(struct mps_softc *sc)
  602 {
  603         lockmgr(&sc->mps_lock, LK_RELEASE);
  604 }
  605 
  606 #define MPS_INFO        (1 << 0)
  607 #define MPS_TRACE       (1 << 1)
  608 #define MPS_FAULT       (1 << 2)
  609 #define MPS_EVENT       (1 << 3)
  610 #define MPS_LOG         (1 << 4)
  611 
  612 #define mps_printf(sc, args...)                         \
  613         device_printf((sc)->mps_dev, ##args)
  614 
  615 #define mps_vprintf(sc, args...)                        \
  616 do {                                                    \
  617         if (bootverbose)                                \
  618                 mps_printf(sc, ##args);                 \
  619 } while (0)
  620 
  621 #define mps_dprint(sc, level, msg, args...)             \
  622 do {                                                    \
  623         if (sc->mps_debug & level)                      \
  624                 device_printf(sc->mps_dev, msg, ##args);        \
  625 } while (0)
  626 
  627 #define mps_dprint_field(sc, level, msg, args...)               \
  628 do {                                                            \
  629         if (sc->mps_debug & level)                              \
  630                 kprintf("\t" msg, ##args);                      \
  631 } while (0)
  632 
  633 #define MPS_PRINTFIELD_START(sc, tag...)        \
  634         mps_dprint((sc), MPS_INFO, ##tag);      \
  635         mps_dprint_field((sc), MPS_INFO, ":\n")
  636 #define MPS_PRINTFIELD_END(sc, tag)             \
  637         mps_dprint((sc), MPS_INFO, tag "\n")
  638 #define MPS_PRINTFIELD(sc, facts, attr, fmt)    \
  639         mps_dprint_field((sc), MPS_INFO, #attr ": " #fmt "\n", (facts)->attr)
  640 
  641 #define MPS_EVENTFIELD_START(sc, tag...)        \
  642         mps_dprint((sc), MPS_EVENT, ##tag);     \
  643         mps_dprint_field((sc), MPS_EVENT, ":\n")
  644 #define MPS_EVENTFIELD(sc, facts, attr, fmt)    \
  645         mps_dprint_field((sc), MPS_EVENT, #attr ": " #fmt "\n", (facts)->attr)
  646 
  647 static __inline void
  648 mps_from_u64(uint64_t data, U64 *mps)
  649 {
  650         (mps)->High = htole32((uint32_t)((data) >> 32));
  651         (mps)->Low = htole32((uint32_t)((data) & 0xffffffff));
  652 }
  653 
  654 static __inline uint64_t
  655 mps_to_u64(U64 *data)
  656 {
  657         return (((uint64_t)le32toh(data->High) << 32) | le32toh(data->Low));
  658 }
  659 
  660 static __inline void
  661 mps_mask_intr(struct mps_softc *sc)
  662 {
  663         uint32_t mask;
  664 
  665         mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
  666         mask |= MPI2_HIM_REPLY_INT_MASK;
  667         mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
  668 }
  669 
  670 static __inline void
  671 mps_unmask_intr(struct mps_softc *sc)
  672 {
  673         uint32_t mask;
  674 
  675         mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
  676         mask &= ~MPI2_HIM_REPLY_INT_MASK;
  677         mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
  678 }
  679 
  680 int mps_pci_setup_interrupts(struct mps_softc *sc);
  681 int mps_pci_restore(struct mps_softc *sc);
  682 
  683 int mps_attach(struct mps_softc *sc);
  684 int mps_free(struct mps_softc *sc);
  685 void mps_intr(void *);
  686 void mps_intr_msi(void *);
  687 void mps_intr_locked(void *);
  688 int mps_register_events(struct mps_softc *, uint8_t *, mps_evt_callback_t *,
  689     void *, struct mps_event_handle **);
  690 int mps_restart(struct mps_softc *);
  691 int mps_update_events(struct mps_softc *, struct mps_event_handle *, uint8_t *);
  692 int mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
  693 int mps_push_sge(struct mps_command *, void *, size_t, int);
  694 int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int);
  695 int mps_attach_sas(struct mps_softc *sc);
  696 int mps_detach_sas(struct mps_softc *sc);
  697 int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
  698 int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
  699 void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
  700 void mpi_init_sge(struct mps_command *cm, void *req, void *sge);
  701 int mps_attach_user(struct mps_softc *);
  702 void mps_detach_user(struct mps_softc *);
  703 void mpssas_record_event(struct mps_softc *sc,
  704     MPI2_EVENT_NOTIFICATION_REPLY *event_reply);
  705 
  706 int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
  707 int mps_wait_command(struct mps_softc *sc, struct mps_command *cm, int timeout);
  708 int mps_request_polled(struct mps_softc *sc, struct mps_command *cm);
  709 
  710 int mps_config_get_bios_pg3(struct mps_softc *sc, Mpi2ConfigReply_t
  711     *mpi_reply, Mpi2BiosPage3_t *config_page);
  712 int mps_config_get_raid_volume_pg0(struct mps_softc *sc, Mpi2ConfigReply_t
  713     *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 page_address);
  714 int mps_config_get_ioc_pg8(struct mps_softc *sc, Mpi2ConfigReply_t *,
  715     Mpi2IOCPage8_t *);
  716 int mps_config_get_man_pg10(struct mps_softc *sc, Mpi2ConfigReply_t *mpi_reply);
  717 int mps_config_get_sas_device_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
  718     Mpi2SasDevicePage0_t *, u32 , u16 );
  719 int mps_config_get_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
  720     Mpi2DriverMappingPage0_t *, u16 );
  721 int mps_config_get_raid_volume_pg1(struct mps_softc *sc,
  722     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
  723     u16 handle);
  724 int mps_config_get_volume_wwid(struct mps_softc *sc, u16 volume_handle,
  725     u64 *wwid);
  726 int mps_config_get_raid_pd_pg0(struct mps_softc *sc,
  727     Mpi2ConfigReply_t *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page,
  728     u32 page_address);
  729 void mpssas_ir_shutdown(struct mps_softc *sc);
  730 
  731 int mps_reinit(struct mps_softc *sc);
  732 void mpssas_handle_reinit(struct mps_softc *sc);
  733 
  734 void mps_base_static_config_pages(struct mps_softc *sc);
  735 void mps_wd_config_pages(struct mps_softc *sc);
  736 
  737 int mps_mapping_initialize(struct mps_softc *);
  738 void mps_mapping_topology_change_event(struct mps_softc *,
  739     Mpi2EventDataSasTopologyChangeList_t *);
  740 int mps_mapping_is_reinit_required(struct mps_softc *);
  741 void mps_mapping_free_memory(struct mps_softc *sc);
  742 int mps_config_set_dpm_pg0(struct mps_softc *, Mpi2ConfigReply_t *,
  743     Mpi2DriverMappingPage0_t *, u16 );
  744 void mps_mapping_exit(struct mps_softc *);
  745 void mps_mapping_check_devices(struct mps_softc *, int);
  746 int mps_mapping_allocate_memory(struct mps_softc *sc);
  747 unsigned int mps_mapping_get_sas_id(struct mps_softc *, uint64_t , u16);
  748 unsigned int mps_mapping_get_sas_id_from_handle(struct mps_softc *sc,
  749     u16 handle);
  750 unsigned int mps_mapping_get_raid_id(struct mps_softc *sc, u64 wwid,
  751     u16 handle);
  752 unsigned int mps_mapping_get_raid_id_from_handle(struct mps_softc *sc,
  753     u16 volHandle);
  754 void mps_mapping_enclosure_dev_status_change_event(struct mps_softc *,
  755     Mpi2EventDataSasEnclDevStatusChange_t *event_data);
  756 void mps_mapping_ir_config_change_event(struct mps_softc *sc,
  757     Mpi2EventDataIrConfigChangeList_t *event_data);
  758 
  759 void mpssas_evt_handler(struct mps_softc *sc, uintptr_t data,
  760     MPI2_EVENT_NOTIFICATION_REPLY *event);
  761 void mpssas_prepare_remove(struct mpssas_softc *sassc, uint16_t handle);
  762 void mpssas_prepare_volume_remove(struct mpssas_softc *sassc, uint16_t handle);
  763 int mpssas_startup(struct mps_softc *sc);
  764 struct mpssas_target * mpssas_find_target_by_handle(struct mpssas_softc *, int, uint16_t);
  765 
  766 SYSCTL_DECL(_hw_mps);
  767 
  768 #define mps_kproc_create(func, farg, proc_ptr, flags, stackpgs, fmtstr, arg) \
  769     kthread_create(func, farg, proc_ptr, fmtstr, arg)
  770 #define mps_kproc_exit(arg)     kthread_exit()
  771 
  772 #if defined(CAM_PRIORITY_XPT)
  773 #define MPS_PRIORITY_XPT        CAM_PRIORITY_XPT
  774 #else
  775 #define MPS_PRIORITY_XPT        5
  776 #endif
  777 #endif

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