sys/dev/raid/tws/tws.h

   1 /*
   2  * Copyright (c) 2010, LSI Corp.
   3  * All rights reserved.
   4  * Author : Manjunath Ranganathaiah
   5  * Support: freebsdraid@lsi.com
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  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
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of the <ORGANIZATION> nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  29  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/tws/tws.h,v 1.3 2007/05/09 04:16:32 mrangana Exp $
  35  */
  36
  37 #include <sys/param.h>        /* defines used in kernel.h */
  38 #include <sys/module.h>
  39 #include <sys/systm.h>
  40 #include <sys/proc.h>
  41 #include <sys/errno.h>
  42 #include <sys/kernel.h>       /* types used in module initialization */
  43 #include <sys/conf.h>         /* cdevsw struct */
  44 #include <sys/uio.h>          /* uio struct */
  45 #include <sys/malloc.h>
  46 #include <sys/bus.h>          /* structs, prototypes for pci bus stuff */
  47
  48 #include <sys/rman.h>
  49 #include <sys/device.h>
  50 #include <machine/clock.h>
  51
  52 #include <bus/pci/pcivar.h>   /* For pci_get macros! */
  53 #include <bus/pci/pcireg.h>
  54
  55 #include <sys/types.h>
  56 #include <sys/sysctl.h>
  57 #include <sys/stat.h>
  58
  59
  60 #define TWS_PULL_MODE_ENABLE 1
  61
  62 MALLOC_DECLARE(M_TWS);
  63 /* externs */
  64 extern int tws_queue_depth;
  65
  66
  67 #define TWS_DRIVER_VERSION_STRING "10.80.00.001"
  68 #define TWS_MAX_NUM_UNITS             65
  69 #define TWS_MAX_NUM_LUNS              16
  70 #define TWS_MAX_IRQS                  2
  71 #define TWS_SCSI_INITIATOR_ID         66
  72 #define TWS_MAX_IO_SIZE               0x20000 /* 128kB */
  73 #define TWS_SECTOR_SIZE               0x200
  74 #define TWS_POLL_TIMEOUT              60
  75 #define TWS_IO_TIMEOUT                60
  76 #define TWS_RESET_TIMEOUT             60
  77
  78 #define TWS_PCI_BAR0                  0x10
  79 #define TWS_PCI_BAR1                  0x14
  80 #define TWS_PCI_BAR2                  0x1C
  81
  82 #define TWS_VENDOR_ID                 0x13C1
  83 #define TWS_DEVICE_ID                 0x1010
  84
  85 #define TWS_INVALID_REQID             0xFFFF
  86
  87 /* bus tag related */
  88 #define TWS_ALIGNMENT                 4
  89 #define TWS_IN_MF_ALIGNMENT           16
  90 #define TWS_OUT_MF_ALIGNMENT          4
  91
  92 #define TWS_MAX_32BIT_SG_ELEMENTS     93     /* max 32-bit sg elements */
  93 #define TWS_MAX_64BIT_SG_ELEMENTS     46     /* max 64-bit sg elements */
  94
  95 #define TWS_MAX_QS                    4
  96 #define TWS_MAX_REQS                  256
  97 #define TWS_RESERVED_REQS             4
  98
  99 /* Request states */
 100 #define TWS_REQ_STATE_TRAN            0
 101 #define TWS_REQ_STATE_FREE            1
 102 #define TWS_REQ_STATE_PENDING         2
 103 #define TWS_REQ_STATE_BUSY            3
 104 #define TWS_REQ_STATE_COMPLETE        4
 105
 106 /* Request types */
 107 #define TWS_INTERNAL_CMD_REQ          0x0
 108 #define TWS_AEN_FETCH_REQ             0x1
 109 #define TWS_PASSTHRU_REQ              0x2
 110 #define TWS_GETSET_PARAM_REQ          0x3
 111 #define TWS_SCSI_IO_REQ               0x4
 112
 113 /* Driver states */
 114
 115 enum tws_states {
 116     TWS_INIT=50,
 117     TWS_UNINIT,
 118     TWS_OFFLINE,
 119     TWS_ONLINE,
 120     TWS_RESET,
 121 };
 122
 123 /* events */
 124
 125 enum tws_events {
 126     TWS_INIT_START=100,
 127     TWS_INIT_COMPLETE,
 128     TWS_UNINIT_START,
 129     TWS_RESET_START,
 130     TWS_RESET_COMPLETE,
 131     TWS_SCAN_FAILURE,
 132 };
 133
 134 enum tws_req_flags {
 135     TWS_DIR_UNKNOWN = 0x1,
 136     TWS_DIR_IN = 0x2,
 137     TWS_DIR_OUT = 0x4,
 138     TWS_DIR_NONE = 0x8,
 139 };
 140
 141 enum tws_intrs {
 142      TWS_INTx,
 143      TWS_MSI,
 144      TWS_MSIX,
 145 };
 146
 147 struct tws_msix_info {
 148     int tbl_res_id;
 149     bus_space_tag_t tbl_tag;
 150     bus_space_handle_t tbl_handle;
 151     struct resource *tbl_res;
 152 };
 153
 154 struct tws_ioctl_lock {
 155     u_int32_t       lock;
 156     time_t          timeout;
 157 };
 158
 159
 160 #define TWS_TRACE_FNAME_LEN  10
 161 #define TWS_TRACE_FUNC_LEN   15
 162 #define TWS_TRACE_DESC_LEN   10
 163 struct tws_trace_rec {
 164     struct timespec ts;
 165     char fname[TWS_TRACE_FNAME_LEN];
 166     char func[TWS_TRACE_FUNC_LEN];
 167     int linenum;
 168     char desc[TWS_TRACE_DESC_LEN];
 169     u_int64_t val1;
 170     u_int64_t val2;
 171 };
 172
 173 struct tws_circular_q {
 174     volatile int16_t head;
 175     volatile int16_t tail;
 176     u_int16_t depth;
 177     u_int8_t  overflow;
 178     void *    q;
 179 };
 180
 181
 182
 183 struct tws_stats {
 184     u_int64_t reqs_in;
 185     u_int64_t reqs_out;
 186     u_int64_t reqs_errored;
 187     u_int64_t spurios_intrs;
 188     u_int64_t num_intrs;
 189     u_int64_t num_aens;
 190     u_int64_t ioctls;
 191     u_int64_t scsi_ios;
 192 };
 193
 194 struct tws_init_connect_info {
 195     u_int16_t     working_srl;
 196     u_int16_t     working_branch;
 197     u_int16_t     working_build;
 198     u_int16_t     fw_on_ctlr_srl;
 199     u_int16_t     fw_on_ctlr_branch;
 200     u_int16_t     fw_on_ctlr_build;
 201
 202 };
 203
 204
 205 /* ------------ boolean types ------------------- */
 206
 207 /* typedef enum _boolean { false, true } boolean; */
 208 #define boolean _Bool
 209 enum err { SUCCESS, FAILURE };
 210
 211 /* ----------- per instance data ---------------- */
 212
 213 /* The softc holds our per-instance data. */
 214 struct tws_softc {
 215     device_t    tws_dev;                  /* bus device */
 216     struct cdev *tws_cdev;                /* controller device */
 217     u_int32_t   device_id;                /* device id */
 218     u_int32_t   subvendor_id;             /* device id */
 219     u_int32_t   subdevice_id;             /* device id */
 220     u_int8_t    tws_state;                /* driver state */
 221     u_int8_t    tws_prev_state;           /* driver prev state */
 222     struct sysctl_ctx_list tws_clist;     /* sysctl context */
 223     struct sysctl_oid *tws_oidp;          /* sysctl context */
 224     struct resource *reg_res;             /* register interface window */
 225     struct resource *mfa_res;             /* mfa interface window */
 226     int reg_res_id;                       /* register resource id */
 227     int mfa_res_id;                       /* register resource id */
 228     bus_space_handle_t bus_handle;        /* bus space handle */
 229     bus_space_handle_t bus_mfa_handle;     /* bus space handle */
 230     bus_space_tag_t bus_tag;              /* bus space tag */
 231     bus_space_tag_t bus_mfa_tag;          /* bus space tag for mfa's */
 232     u_int64_t mfa_base;                   /* mfa base address */
 233     struct resource *irq_res;             /* interrupt resource */
 234     int irq_res_id;                       /* intr resource id */
 235     void *intr_handle;                    /* interrupt handle */
 236     struct tws_msix_info msix;            /* msix info */
 237     struct cam_sim *sim;                  /* sim for this controller */
 238     struct cam_path *path;                /* Ctlr path to CAM */
 239     struct lock q_lock;                   /* queue lock */
 240     struct lock sim_lock;                 /* sim lock */
 241     struct lock gen_lock;                 /* general driver  lock */
 242     struct lock io_lock;                  /* IO  lock */
 243     struct tws_ioctl_lock ioctl_lock;     /* ioctl lock */
 244     u_int32_t seq_id;                     /* Sequence id */
 245     int chan;                             /* wait channel */
 246     struct tws_circular_q aen_q;          /* aen q */
 247     struct tws_circular_q trace_q;        /* trace q */
 248     struct tws_stats stats;               /* I/O stats */
 249     struct tws_init_connect_info cinfo;   /* compatibility info */
 250     boolean is64bit;                      /* True - 64bit else 32bit */
 251     int intr_type;                        /* Interrupt type used */
 252     bus_dma_tag_t parent_tag;             /* parent DMA tag */
 253     bus_dma_tag_t cmd_tag;                /* command DMA tag */
 254     bus_dmamap_t cmd_map;                 /* command map */
 255     void *dma_mem;                        /* pointer to dmable memory */
 256     u_int64_t dma_mem_phys;               /* phy addr */
 257     bus_dma_tag_t data_tag;               /* data DMA tag */
 258     struct tws_request *reqs;             /* pointer to requests */
 259     struct tws_sense *sense_bufs;         /* pointer to sense buffers */
 260     boolean obfl_q_overrun;               /* OBFL overrun flag  */
 261     union ccb *scan_ccb;                  /* pointer to a ccb */
 262     struct tws_request *q_head[TWS_MAX_QS]; /* head pointers to q's */
 263     struct tws_request *q_tail[TWS_MAX_QS]; /* tail pointers to q's */
 264
 265     struct callout print_stats_handle;
 266     struct callout reset_cb_handle;
 267     struct callout reinit_handle;
 268 };