1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2010, LSI Corp. 5 * All rights reserved. 6 * Author : Manjunath Ranganathaiah 7 * Support: freebsdraid@lsi.com 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 3. Neither the name of the <ORGANIZATION> nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #include <sys/param.h> /* defines used in kernel.h */ 38 #include <sys/bus.h> /* structs, prototypes for pci bus stuff */ 39 #include <sys/conf.h> /* cdevsw struct */ 40 #include <sys/errno.h> 41 #include <sys/kernel.h> /* types used in module initialization */ 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/module.h> 45 #include <sys/mutex.h> 46 #include <sys/proc.h> 47 #include <sys/systm.h> 48 #include <sys/uio.h> /* uio struct */ 49 50 #include <machine/bus.h> 51 #include <sys/rman.h> 52 #include <machine/resource.h> 53 54 #include <dev/pci/pcivar.h> /* For pci_get macros! */ 55 #include <dev/pci/pcireg.h> 56 57 #include <sys/types.h> 58 #include <sys/sysctl.h> 59 #include <sys/stat.h> 60 61 #define TWS_PULL_MODE_ENABLE 1 62 63 MALLOC_DECLARE(M_TWS); 64 /* externs */ 65 extern int tws_queue_depth; 66 67 #define TWS_DRIVER_VERSION_STRING "10.80.00.005" 68 #define TWS_MAX_NUM_UNITS 65 69 #define TWS_MAX_NUM_LUNS 32 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_IOCTL_TIMEOUT 60 77 #define TWS_RESET_TIMEOUT 60 78 79 #define TWS_PCI_BAR0 0x10 80 #define TWS_PCI_BAR1 0x14 81 #define TWS_PCI_BAR2 0x1C 82 83 #define TWS_VENDOR_ID 0x13C1 84 #define TWS_DEVICE_ID 0x1010 85 86 #define TWS_INVALID_REQID 0xFFFF 87 88 /* bus tag related */ 89 #define TWS_ALIGNMENT 4 90 #define TWS_IN_MF_ALIGNMENT 16 91 #define TWS_OUT_MF_ALIGNMENT 4 92 93 #define TWS_MAX_32BIT_SG_ELEMENTS 93 /* max 32-bit sg elements */ 94 #define TWS_MAX_64BIT_SG_ELEMENTS 46 /* max 64-bit sg elements */ 95 96 #define TWS_MAX_QS 4 97 #define TWS_MAX_REQS 256 98 #define TWS_RESERVED_REQS 4 99 100 /* Request states */ 101 #define TWS_REQ_STATE_FREE 0 102 #define TWS_REQ_STATE_BUSY 1 103 #define TWS_REQ_STATE_TRAN 2 104 #define TWS_REQ_STATE_COMPLETE 3 105 106 /* Request types */ 107 #define TWS_REQ_TYPE_INTERNAL_CMD 0x0 108 #define TWS_REQ_TYPE_AEN_FETCH 0x1 109 #define TWS_REQ_TYPE_PASSTHRU 0x2 110 #define TWS_REQ_TYPE_GETSET_PARAM 0x3 111 #define TWS_REQ_TYPE_SCSI_IO 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 TWS_DATA_CCB = 0x10, 140 }; 141 142 enum tws_intrs { 143 TWS_INTx, 144 TWS_MSI, 145 TWS_MSIX, 146 }; 147 148 struct tws_msix_info { 149 int tbl_res_id; 150 bus_space_tag_t tbl_tag; 151 bus_space_handle_t tbl_handle; 152 struct resource *tbl_res; 153 }; 154 155 struct tws_ioctl_lock { 156 u_int32_t lock; 157 time_t timeout; 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 struct tws_stats { 182 u_int64_t reqs_in; 183 u_int64_t reqs_out; 184 u_int64_t reqs_errored; 185 u_int64_t spurios_intrs; 186 u_int64_t num_intrs; 187 u_int64_t num_aens; 188 u_int64_t ioctls; 189 u_int64_t scsi_ios; 190 }; 191 192 struct tws_init_connect_info { 193 u_int16_t working_srl; 194 u_int16_t working_branch; 195 u_int16_t working_build; 196 u_int16_t fw_on_ctlr_srl; 197 u_int16_t fw_on_ctlr_branch; 198 u_int16_t fw_on_ctlr_build; 199 200 }; 201 202 /* ------------ boolean types ------------------- */ 203 204 #ifndef __bool_true_false_are_defined 205 typedef enum _boolean { false, true } boolean; 206 #else 207 #define boolean bool 208 #endif 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[TWS_MAX_IRQS];/* interrupt resource */ 234 int irq_res_id[TWS_MAX_IRQS]; /* intr resource id */ 235 void *intr_handle[TWS_MAX_IRQS]; /* interrupt handle */ 236 int irqs; /* intrs used */ 237 struct tws_msix_info msix; /* msix info */ 238 struct cam_sim *sim; /* sim for this controller */ 239 struct cam_path *path; /* Ctlr path to CAM */ 240 struct mtx q_lock; /* queue lock */ 241 struct mtx sim_lock; /* sim lock */ 242 struct mtx gen_lock; /* general driver lock */ 243 struct mtx io_lock; /* IO lock */ 244 struct tws_ioctl_lock ioctl_lock; /* ioctl lock */ 245 u_int32_t seq_id; /* Sequence id */ 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 u_int8_t 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 void *ioctl_data_mem; /* ioctl dmable memory */ 259 bus_dmamap_t ioctl_data_map; /* ioctl data map */ 260 struct tws_request *reqs; /* pointer to requests */ 261 struct tws_sense *sense_bufs; /* pointer to sense buffers */ 262 boolean obfl_q_overrun; /* OBFL overrun flag */ 263 union ccb *scan_ccb; /* pointer to a ccb */ 264 struct tws_request *q_head[TWS_MAX_QS]; /* head pointers to q's */ 265 struct tws_request *q_tail[TWS_MAX_QS]; /* tail pointers to q's */ 266 struct callout stats_timer; 267 }; 268