mps_sas.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2011-2015 LSI Corp.
    5  * Copyright (c) 2013-2015 Avago Technologies
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
   30  *
   31  * $FreeBSD$
   32  */
   33 
   34 struct mps_fw_event_work;
   35 
   36 struct mpssas_lun {
   37         SLIST_ENTRY(mpssas_lun) lun_link;
   38         lun_id_t        lun_id;
   39         uint8_t         eedp_formatted;
   40         uint32_t        eedp_block_size;
   41 };
   42 
   43 struct mpssas_target {
   44         uint16_t        handle;
   45         uint8_t         linkrate;
   46         uint64_t        devname;
   47         uint32_t        devinfo;
   48         uint16_t        encl_handle;
   49         uint16_t        encl_slot;
   50         uint8_t         flags;
   51 #define MPSSAS_TARGET_INABORT   (1 << 0)
   52 #define MPSSAS_TARGET_INRESET   (1 << 1)
   53 #define MPSSAS_TARGET_INDIAGRESET (1 << 2)
   54 #define MPSSAS_TARGET_INREMOVAL (1 << 3)
   55 #define MPS_TARGET_FLAGS_RAID_COMPONENT (1 << 4)
   56 #define MPS_TARGET_FLAGS_VOLUME         (1 << 5)
   57 #define MPS_TARGET_IS_SATA_SSD  (1 << 6)
   58 #define MPSSAS_TARGET_INRECOVERY (MPSSAS_TARGET_INABORT | \
   59     MPSSAS_TARGET_INRESET | MPSSAS_TARGET_INCHIPRESET)
   60 
   61         uint16_t        tid;
   62         SLIST_HEAD(, mpssas_lun) luns;
   63         TAILQ_HEAD(, mps_command) commands;
   64         struct mps_command *tm;
   65         struct mps_command *pending_remove_tm;
   66         TAILQ_HEAD(, mps_command) timedout_commands;
   67         uint16_t        exp_dev_handle;
   68         uint16_t        phy_num;
   69         uint64_t        sasaddr;
   70         uint16_t        parent_handle;
   71         uint64_t        parent_sasaddr;
   72         uint32_t        parent_devinfo;
   73         uint64_t        issued;
   74         uint64_t        completed;
   75         unsigned int    outstanding;
   76         unsigned int    timeouts;
   77         unsigned int    aborts;
   78         unsigned int    logical_unit_resets;
   79         unsigned int    target_resets;
   80         uint8_t         stop_at_shutdown;
   81         uint8_t         supports_SSU;
   82 };
   83 
   84 struct mpssas_softc {
   85         struct mps_softc        *sc;
   86         u_int                   flags;
   87 #define MPSSAS_IN_DISCOVERY     (1 << 0)
   88 #define MPSSAS_IN_STARTUP       (1 << 1)
   89 #define MPSSAS_QUEUE_FROZEN     (1 << 3)
   90         u_int                   maxtargets;
   91         struct mpssas_target    *targets;
   92         struct cam_devq         *devq;
   93         struct cam_sim          *sim;
   94         struct cam_path         *path;
   95         struct intr_config_hook sas_ich;
   96         struct mps_event_handle *mpssas_eh;
   97 
   98         u_int                   startup_refcount;
   99         struct proc             *sysctl_proc;
  100 
  101         struct taskqueue        *ev_tq;
  102         struct task             ev_task;
  103         TAILQ_HEAD(, mps_fw_event_work) ev_queue;
  104 };
  105 
  106 MALLOC_DECLARE(M_MPSSAS);
  107 
  108 /*
  109  * Abstracted so that the driver can be backwards and forwards compatible
  110  * with future versions of CAM that will provide this functionality.
  111  */
  112 #define MPS_SET_LUN(lun, ccblun)        \
  113         mpssas_set_lun(lun, ccblun)
  114 
  115 static __inline int
  116 mpssas_set_lun(uint8_t *lun, u_int ccblun)
  117 {
  118         uint64_t *newlun;
  119 
  120         newlun = (uint64_t *)lun;
  121         *newlun = 0;
  122         if (ccblun <= 0xff) {
  123                 /* Peripheral device address method, LUN is 0 to 255 */
  124                 lun[1] = ccblun;
  125         } else if (ccblun <= 0x3fff) {
  126                 /* Flat space address method, LUN is <= 16383 */
  127                 scsi_ulto2b(ccblun, lun);
  128                 lun[0] |= 0x40;
  129         } else if (ccblun <= 0xffffff) {
  130                 /* Extended flat space address method, LUN is <= 16777215 */
  131                 scsi_ulto3b(ccblun, &lun[1]);
  132                 /* Extended Flat space address method */
  133                 lun[0] = 0xc0;
  134                 /* Length = 1, i.e. LUN is 3 bytes long */
  135                 lun[0] |= 0x10;
  136                 /* Extended Address Method */
  137                 lun[0] |= 0x02;
  138         } else {
  139                 return (EINVAL);
  140         }
  141 
  142         return (0);
  143 }
  144 
  145 static __inline void
  146 mpssas_set_ccbstatus(union ccb *ccb, int status)
  147 {
  148         ccb->ccb_h.status &= ~CAM_STATUS_MASK;
  149         ccb->ccb_h.status |= status;
  150 }
  151 
  152 static __inline int
  153 mpssas_get_ccbstatus(union ccb *ccb)
  154 {
  155         return (ccb->ccb_h.status & CAM_STATUS_MASK);
  156 }
  157 
  158 #define MPS_SET_SINGLE_LUN(req, lun)    \
  159 do {                                    \
  160         bzero((req)->LUN, 8);           \
  161         (req)->LUN[1] = lun;            \
  162 } while(0)
  163 
  164 void mpssas_rescan_target(struct mps_softc *sc, struct mpssas_target *targ);
  165 void mpssas_discovery_end(struct mpssas_softc *sassc);
  166 void mpssas_prepare_for_tm(struct mps_softc *sc, struct mps_command *tm,
  167     struct mpssas_target *target, lun_id_t lun_id);
  168 void mpssas_startup_increment(struct mpssas_softc *sassc);
  169 void mpssas_startup_decrement(struct mpssas_softc *sassc);
  170 
  171 void mpssas_firmware_event_work(void *arg, int pending);
  172 int mpssas_check_id(struct mpssas_softc *sassc, int id);

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

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