mps_sas.h

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    1 /*-
    2  * Copyright (c) 2011 LSI Corp.
    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  * LSI MPT-Fusion Host Adapter FreeBSD
   27  *
   28  * $FreeBSD: src/sys/dev/mps/mps_sas.h,v 1.1 2012/01/26 18:17:21 ken Exp $
   29  */
   30 
   31 struct mps_fw_event_work;
   32 
   33 struct mpssas_lun {
   34         SLIST_ENTRY(mpssas_lun) lun_link;
   35         lun_id_t        lun_id;
   36         uint8_t         eedp_formatted;
   37         uint32_t        eedp_block_size;
   38 };
   39 
   40 struct mpssas_target {
   41         uint16_t        handle;
   42         uint8_t         linkrate;
   43         uint64_t        devname;
   44         uint32_t        devinfo;
   45         uint16_t        encl_handle;
   46         uint16_t        encl_slot;
   47         uint8_t         flags;
   48 #define MPSSAS_TARGET_INABORT   (1 << 0)
   49 #define MPSSAS_TARGET_INRESET   (1 << 1)
   50 #define MPSSAS_TARGET_INDIAGRESET (1 << 2)
   51 #define MPSSAS_TARGET_INREMOVAL (1 << 3)
   52 #define MPS_TARGET_FLAGS_RAID_COMPONENT (1 << 4)
   53 #define MPS_TARGET_FLAGS_VOLUME         (1 << 5)
   54 #define MPSSAS_TARGET_INRECOVERY (MPSSAS_TARGET_INABORT | \
   55     MPSSAS_TARGET_INRESET | MPSSAS_TARGET_INCHIPRESET)
   56 #define MPSSAS_TARGET_ADD       (1 << 29)
   57 #define MPSSAS_TARGET_REMOVE    (1 << 30)
   58         uint16_t        tid;
   59         SLIST_HEAD(, mpssas_lun) luns;
   60         TAILQ_HEAD(, mps_command) commands;
   61         struct mps_command *tm;
   62         TAILQ_HEAD(, mps_command) timedout_commands;
   63         uint16_t        exp_dev_handle;
   64         uint16_t        phy_num;
   65         uint64_t        sasaddr;
   66         uint16_t        parent_handle;
   67         uint64_t        parent_sasaddr;
   68         uint32_t        parent_devinfo;
   69         struct sysctl_ctx_list sysctl_ctx;
   70         struct sysctl_oid *sysctl_tree;
   71         TAILQ_ENTRY(mpssas_target) sysctl_link;
   72         uint64_t        issued;
   73         uint64_t        completed;
   74         unsigned int    outstanding;
   75         unsigned int    timeouts;
   76         unsigned int    aborts;
   77         unsigned int    logical_unit_resets;
   78         unsigned int    target_resets;
   79 };
   80 
   81 struct mpssas_softc {
   82         struct mps_softc        *sc;
   83         u_int                   flags;
   84 #define MPSSAS_IN_DISCOVERY     (1 << 0)
   85 #define MPSSAS_IN_STARTUP       (1 << 1)
   86 #define MPSSAS_DISCOVERY_TIMEOUT_PENDING        (1 << 2)
   87 #define MPSSAS_QUEUE_FROZEN     (1 << 3)
   88 #define MPSSAS_SHUTDOWN         (1 << 4)
   89 #define MPSSAS_SCANTHREAD       (1 << 5)
   90         struct mpssas_target    *targets;
   91         struct cam_devq         *devq;
   92         struct cam_sim          *sim;
   93         struct cam_path         *path;
   94         struct intr_config_hook sas_ich;
   95         struct callout          discovery_callout;
   96         u_int                   discovery_timeouts;
   97         struct mps_event_handle *mpssas_eh;
   98 
   99         u_int                   startup_refcount;
  100         u_int                   tm_count;
  101         struct proc             *sysctl_proc;
  102 
  103         TAILQ_HEAD(, ccb_hdr) ccb_scanq;
  104         struct thread           *rescan_thread;
  105 
  106         struct taskqueue        *ev_tq;
  107         struct task             ev_task;
  108         TAILQ_HEAD(, mps_fw_event_work) ev_queue;
  109 };
  110 
  111 /*
  112  * Abstracted so that the driver can be backwards and forwards compatible
  113  * with future versions of CAM that will provide this functionality.
  114  */
  115 #define MPS_SET_LUN(lun, ccblun)        \
  116         mpssas_set_lun(lun, ccblun)
  117 
  118 static __inline int
  119 mpssas_set_lun(uint8_t *lun, u_int ccblun)
  120 {
  121         uint64_t *newlun;
  122 
  123         newlun = (uint64_t *)lun;
  124         *newlun = 0;
  125         if (ccblun <= 0xff) {
  126                 /* Peripheral device address method, LUN is 0 to 255 */
  127                 lun[1] = ccblun;
  128         } else if (ccblun <= 0x3fff) {
  129                 /* Flat space address method, LUN is <= 16383 */
  130                 scsi_ulto2b(ccblun, lun);
  131                 lun[0] |= 0x40;
  132         } else if (ccblun <= 0xffffff) {
  133                 /* Extended flat space address method, LUN is <= 16777215 */
  134                 scsi_ulto3b(ccblun, &lun[1]);
  135                 /* Extended Flat space address method */
  136                 lun[0] = 0xc0;
  137                 /* Length = 1, i.e. LUN is 3 bytes long */
  138                 lun[0] |= 0x10;
  139                 /* Extended Address Method */
  140                 lun[0] |= 0x02;
  141         } else {
  142                 return (EINVAL);
  143         }
  144 
  145         return (0);
  146 }
  147 
  148 #define MPS_SET_SINGLE_LUN(req, lun)    \
  149 do {                                    \
  150         bzero((req)->LUN, 8);           \
  151         (req)->LUN[1] = lun;            \
  152 } while(0)
  153 
  154 void mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ);
  155 void mpssas_discovery_end(struct mpssas_softc *sassc);
  156 void mpssas_startup_increment(struct mpssas_softc *sassc);
  157 void mpssas_startup_decrement(struct mpssas_softc *sassc);
  158 
  159 struct mps_command * mpssas_alloc_tm(struct mps_softc *sc);
  160 void mpssas_free_tm(struct mps_softc *sc, struct mps_command *tm);
  161 void mpssas_firmware_event_work(void *arg, int pending);

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FreeBSD/Linux Kernel Cross Reference sys/dev/raid/mps/mps_sas.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/raid/mps/mps_sas.h