linux_sg.c revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: linux_sg.c,v 1.1.2.2 2005/02/04 11:45:08 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /* 4 1.1.2.2 skrll * Copyright (c) 2004 Soren S. Jorvang. All rights reserved. 5 1.1.2.2 skrll * 6 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 skrll * modification, are permitted provided that the following conditions 8 1.1.2.2 skrll * are met: 9 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 skrll * notice, this list of conditions, and the following disclaimer. 11 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 14 1.1.2.2 skrll * 15 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 1.1.2.2 skrll * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 1.1.2.2 skrll * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 1.1.2.2 skrll * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 1.1.2.2 skrll * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 1.1.2.2 skrll * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 1.1.2.2 skrll * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.1.2.2 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 1.1.2.2 skrll * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.1.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.1.2.2 skrll * SUCH DAMAGE. 26 1.1.2.2 skrll */ 27 1.1.2.2 skrll 28 1.1.2.2 skrll #include <sys/cdefs.h> 29 1.1.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: linux_sg.c,v 1.1.2.2 2005/02/04 11:45:08 skrll Exp $"); 30 1.1.2.2 skrll 31 1.1.2.2 skrll #include <sys/param.h> 32 1.1.2.2 skrll #include <sys/systm.h> 33 1.1.2.2 skrll #include <sys/ioctl.h> 34 1.1.2.2 skrll #include <sys/file.h> 35 1.1.2.2 skrll #include <sys/filedesc.h> 36 1.1.2.2 skrll #include <sys/mount.h> 37 1.1.2.2 skrll #include <sys/proc.h> 38 1.1.2.2 skrll 39 1.1.2.2 skrll #include <sys/scsiio.h> 40 1.1.2.2 skrll #include <dev/scsipi/scsipi_all.h> 41 1.1.2.2 skrll #include <dev/scsipi/scsiconf.h> 42 1.1.2.2 skrll 43 1.1.2.2 skrll #include <sys/sa.h> 44 1.1.2.2 skrll #include <sys/syscallargs.h> 45 1.1.2.2 skrll 46 1.1.2.2 skrll #include <compat/linux/common/linux_types.h> 47 1.1.2.2 skrll #include <compat/linux/common/linux_ioctl.h> 48 1.1.2.2 skrll #include <compat/linux/common/linux_signal.h> 49 1.1.2.2 skrll #include <compat/linux/common/linux_sg.h> 50 1.1.2.2 skrll 51 1.1.2.2 skrll #include <compat/linux/linux_syscallargs.h> 52 1.1.2.2 skrll 53 1.1.2.2 skrll #ifdef LINUX_SG_DEBUG 54 1.1.2.2 skrll #define DPRINTF(a) printf a 55 1.1.2.2 skrll #else 56 1.1.2.2 skrll #define DPRINTF(a) 57 1.1.2.2 skrll #endif 58 1.1.2.2 skrll 59 1.1.2.2 skrll #ifdef LINUX_SG_DEBUG 60 1.1.2.2 skrll static void dump_sg_io(struct linux_sg_io_hdr *); 61 1.1.2.2 skrll static void dump_scsireq(struct scsireq *); 62 1.1.2.2 skrll #endif 63 1.1.2.2 skrll 64 1.1.2.2 skrll static int bsd_to_linux_host_status(int); 65 1.1.2.2 skrll static int bsd_to_linux_driver_status(int); 66 1.1.2.2 skrll 67 1.1.2.2 skrll int 68 1.1.2.2 skrll linux_ioctl_sg(struct lwp *l, struct linux_sys_ioctl_args *uap, 69 1.1.2.2 skrll register_t *retval) 70 1.1.2.2 skrll { 71 1.1.2.2 skrll struct file *fp; 72 1.1.2.2 skrll struct filedesc *fdp; 73 1.1.2.2 skrll u_long com = SCARG(uap, com); 74 1.1.2.2 skrll int error = 0; 75 1.1.2.2 skrll int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 76 1.1.2.2 skrll struct linux_sg_io_hdr lreq; 77 1.1.2.2 skrll struct scsireq req; 78 1.1.2.2 skrll 79 1.1.2.2 skrll fdp = l->l_proc->p_fd; 80 1.1.2.2 skrll if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 81 1.1.2.2 skrll return EBADF; 82 1.1.2.2 skrll 83 1.1.2.2 skrll FILE_USE(fp); 84 1.1.2.2 skrll ioctlf = fp->f_ops->fo_ioctl; 85 1.1.2.2 skrll 86 1.1.2.2 skrll *retval = 0; 87 1.1.2.2 skrll DPRINTF(("Command = %lx\n", com)); 88 1.1.2.2 skrll switch (com) { 89 1.1.2.2 skrll case LINUX_SG_GET_VERSION_NUM: { 90 1.1.2.2 skrll short version = 30124; 91 1.1.2.2 skrll error = copyout(&version, SCARG(uap, data), sizeof(version)); 92 1.1.2.2 skrll break; 93 1.1.2.2 skrll } 94 1.1.2.2 skrll case LINUX_SG_IO: 95 1.1.2.2 skrll error = copyin(SCARG(uap, data), &lreq, sizeof(lreq)); 96 1.1.2.2 skrll if (error) { 97 1.1.2.2 skrll DPRINTF(("failed to copy in request data %d\n", error)); 98 1.1.2.2 skrll break; 99 1.1.2.2 skrll } 100 1.1.2.2 skrll 101 1.1.2.2 skrll #ifdef LINUX_SG_DEBUG 102 1.1.2.2 skrll dump_sg_io(&lreq); 103 1.1.2.2 skrll #endif 104 1.1.2.2 skrll (void)memset(&req, 0, sizeof(req)); 105 1.1.2.2 skrll switch (lreq.dxfer_direction) { 106 1.1.2.2 skrll case SG_DXFER_TO_DEV: 107 1.1.2.2 skrll req.flags = SCCMD_WRITE; 108 1.1.2.2 skrll break; 109 1.1.2.2 skrll case SG_DXFER_FROM_DEV: 110 1.1.2.2 skrll req.flags = SCCMD_READ; 111 1.1.2.2 skrll break; 112 1.1.2.2 skrll default: 113 1.1.2.2 skrll DPRINTF(("unknown direction %d\n", 114 1.1.2.2 skrll lreq.dxfer_direction)); 115 1.1.2.2 skrll error = EINVAL; 116 1.1.2.2 skrll goto done; 117 1.1.2.2 skrll } 118 1.1.2.2 skrll if (lreq.iovec_count != 0) { 119 1.1.2.2 skrll /* XXX: Not yet */ 120 1.1.2.2 skrll error = EOPNOTSUPP; 121 1.1.2.2 skrll DPRINTF(("scatter/gather not supported\n")); 122 1.1.2.2 skrll break; 123 1.1.2.2 skrll } 124 1.1.2.2 skrll 125 1.1.2.2 skrll if (lreq.cmd_len > sizeof(req.cmd)) { 126 1.1.2.2 skrll DPRINTF(("invalid command length %d\n", lreq.cmd_len)); 127 1.1.2.2 skrll error = EINVAL; 128 1.1.2.2 skrll break; 129 1.1.2.2 skrll } 130 1.1.2.2 skrll 131 1.1.2.2 skrll error = copyin(lreq.cmdp, req.cmd, lreq.cmd_len); 132 1.1.2.2 skrll if (error) { 133 1.1.2.2 skrll DPRINTF(("failed to copy in cmd data %d\n", error)); 134 1.1.2.2 skrll break; 135 1.1.2.2 skrll } 136 1.1.2.2 skrll 137 1.1.2.2 skrll req.timeout = lreq.timeout; 138 1.1.2.2 skrll req.cmdlen = lreq.cmd_len; 139 1.1.2.2 skrll req.datalen = lreq.dxfer_len; 140 1.1.2.2 skrll req.databuf = lreq.dxferp; 141 1.1.2.2 skrll 142 1.1.2.2 skrll error = ioctlf(fp, SCIOCCOMMAND, (caddr_t)&req, l); 143 1.1.2.2 skrll if (error) { 144 1.1.2.2 skrll DPRINTF(("SCIOCCOMMAND failed %d\n", error)); 145 1.1.2.2 skrll break; 146 1.1.2.2 skrll } 147 1.1.2.2 skrll #ifdef LINUX_SG_DEBUG 148 1.1.2.2 skrll dump_scsireq(&req); 149 1.1.2.2 skrll #endif 150 1.1.2.2 skrll (void)memset(&req, 0, sizeof(req)); 151 1.1.2.2 skrll 152 1.1.2.2 skrll if (req.senselen_used) { 153 1.1.2.2 skrll lreq.sb_len_wr = req.senselen; 154 1.1.2.2 skrll error = copyout(req.sense, lreq.sbp, req.senselen); 155 1.1.2.2 skrll if (error) { 156 1.1.2.2 skrll DPRINTF(("sense copyout failed %d\n", error)); 157 1.1.2.2 skrll break; 158 1.1.2.2 skrll } 159 1.1.2.2 skrll } else { 160 1.1.2.2 skrll lreq.sb_len_wr = 0; 161 1.1.2.2 skrll } 162 1.1.2.2 skrll 163 1.1.2.2 skrll lreq.status = req.status; 164 1.1.2.2 skrll lreq.masked_status = 0; /* XXX */ 165 1.1.2.2 skrll lreq.host_status = bsd_to_linux_host_status(req.retsts); 166 1.1.2.2 skrll lreq.sb_len_wr = req.datalen_used; 167 1.1.2.2 skrll lreq.driver_status = bsd_to_linux_driver_status(req.error); 168 1.1.2.2 skrll lreq.resid = req.datalen - req.datalen_used; 169 1.1.2.2 skrll lreq.duration = req.timeout; /* XXX */ 170 1.1.2.2 skrll lreq.info = 0; /* XXX */ 171 1.1.2.2 skrll error = copyout(&lreq, SCARG(uap, data), sizeof(lreq)); 172 1.1.2.2 skrll if (error) 173 1.1.2.2 skrll DPRINTF(("failed to copy out req data %d\n", error)); 174 1.1.2.2 skrll break; 175 1.1.2.2 skrll case LINUX_SG_EMULATED_HOST: 176 1.1.2.2 skrll case LINUX_SG_SET_TRANSFORM: 177 1.1.2.2 skrll case LINUX_SG_GET_TRANSFORM: 178 1.1.2.2 skrll case LINUX_SG_GET_NUM_WAITING: 179 1.1.2.2 skrll case LINUX_SG_SCSI_RESET: 180 1.1.2.2 skrll case LINUX_SG_GET_REQUEST_TABLE: 181 1.1.2.2 skrll case LINUX_SG_SET_KEEP_ORPHAN: 182 1.1.2.2 skrll case LINUX_SG_GET_KEEP_ORPHAN: 183 1.1.2.2 skrll case LINUX_SG_GET_ACCESS_COUNT: 184 1.1.2.2 skrll case LINUX_SG_SET_FORCE_LOW_DMA: 185 1.1.2.2 skrll case LINUX_SG_GET_LOW_DMA: 186 1.1.2.2 skrll case LINUX_SG_GET_SG_TABLESIZE: 187 1.1.2.2 skrll case LINUX_SG_GET_SCSI_ID: 188 1.1.2.2 skrll case LINUX_SG_SET_FORCE_PACK_ID: 189 1.1.2.2 skrll case LINUX_SG_GET_PACK_ID: 190 1.1.2.2 skrll case LINUX_SG_SET_RESERVED_SIZE: 191 1.1.2.2 skrll case LINUX_SG_GET_RESERVED_SIZE: 192 1.1.2.2 skrll error = ENODEV; 193 1.1.2.2 skrll break; 194 1.1.2.2 skrll 195 1.1.2.2 skrll /* version 2 interfaces */ 196 1.1.2.2 skrll case LINUX_SG_SET_TIMEOUT: 197 1.1.2.2 skrll break; 198 1.1.2.2 skrll case LINUX_SG_GET_TIMEOUT: 199 1.1.2.2 skrll /* ioctl returns value..., grr. */ 200 1.1.2.2 skrll *retval = 60; 201 1.1.2.2 skrll break; 202 1.1.2.2 skrll case LINUX_SG_GET_COMMAND_Q: 203 1.1.2.2 skrll case LINUX_SG_SET_COMMAND_Q: 204 1.1.2.2 skrll case LINUX_SG_SET_DEBUG: 205 1.1.2.2 skrll case LINUX_SG_NEXT_CMD_LEN: 206 1.1.2.2 skrll error = ENODEV; 207 1.1.2.2 skrll break; 208 1.1.2.2 skrll } 209 1.1.2.2 skrll 210 1.1.2.2 skrll done: 211 1.1.2.2 skrll FILE_UNUSE(fp, l); 212 1.1.2.2 skrll 213 1.1.2.2 skrll DPRINTF(("Return=%d\n", error)); 214 1.1.2.2 skrll return error; 215 1.1.2.2 skrll } 216 1.1.2.2 skrll 217 1.1.2.2 skrll static int 218 1.1.2.2 skrll bsd_to_linux_driver_status(int bs) 219 1.1.2.2 skrll { 220 1.1.2.2 skrll switch (bs) { 221 1.1.2.2 skrll default: 222 1.1.2.2 skrll case XS_NOERROR: 223 1.1.2.2 skrll return 0; 224 1.1.2.2 skrll case XS_SENSE: 225 1.1.2.2 skrll case XS_SHORTSENSE: 226 1.1.2.2 skrll return LINUX_DRIVER_SENSE; 227 1.1.2.2 skrll case XS_RESOURCE_SHORTAGE: 228 1.1.2.2 skrll return LINUX_DRIVER_SOFT; 229 1.1.2.2 skrll case XS_DRIVER_STUFFUP: 230 1.1.2.2 skrll return LINUX_DRIVER_ERROR; 231 1.1.2.2 skrll case XS_SELTIMEOUT: 232 1.1.2.2 skrll case XS_TIMEOUT: 233 1.1.2.2 skrll return LINUX_DRIVER_TIMEOUT; 234 1.1.2.2 skrll case XS_BUSY: 235 1.1.2.2 skrll return LINUX_DRIVER_BUSY; 236 1.1.2.2 skrll case XS_RESET: 237 1.1.2.2 skrll return LINUX_SUGGEST_ABORT; 238 1.1.2.2 skrll case XS_REQUEUE: 239 1.1.2.2 skrll return LINUX_SUGGEST_RETRY; 240 1.1.2.2 skrll } 241 1.1.2.2 skrll } 242 1.1.2.2 skrll 243 1.1.2.2 skrll static int 244 1.1.2.2 skrll bsd_to_linux_host_status(int bs) 245 1.1.2.2 skrll { 246 1.1.2.2 skrll switch (bs) { 247 1.1.2.2 skrll case SCCMD_OK: 248 1.1.2.2 skrll case SCCMD_SENSE: 249 1.1.2.2 skrll return LINUX_DID_OK; 250 1.1.2.2 skrll case SCCMD_TIMEOUT: 251 1.1.2.2 skrll return LINUX_DID_TIME_OUT; 252 1.1.2.2 skrll case SCCMD_BUSY: 253 1.1.2.2 skrll return LINUX_DID_BUS_BUSY; 254 1.1.2.2 skrll case SCCMD_UNKNOWN: 255 1.1.2.2 skrll default: 256 1.1.2.2 skrll return LINUX_DID_ERROR; 257 1.1.2.2 skrll } 258 1.1.2.2 skrll } 259 1.1.2.2 skrll 260 1.1.2.2 skrll 261 1.1.2.2 skrll 262 1.1.2.2 skrll #ifdef LINUX_SG_DEBUG 263 1.1.2.2 skrll static void 264 1.1.2.2 skrll dump_sg_io(struct linux_sg_io_hdr *lr) 265 1.1.2.2 skrll { 266 1.1.2.2 skrll printf("linuxreq [interface_id=%x, dxfer_direction=%d, cmd_len=%d, " 267 1.1.2.2 skrll "mx_sb_len=%d, iovec_count=%d, dxfer_len=%d, dxferp=%p, " 268 1.1.2.2 skrll "cmdp=%p, sbp=%p, timeout=%u, flags=%d, pack_id=%d, " 269 1.1.2.2 skrll "usr_ptr=%p, status=%u, masked_status=%u, sb_len_wr=%u, " 270 1.1.2.2 skrll "host_status=%u, driver_status=%u, resid=%d, duration=%u, " 271 1.1.2.2 skrll "info=%u]\n", 272 1.1.2.2 skrll lr->interface_id, lr->dxfer_direction, lr->cmd_len, 273 1.1.2.2 skrll lr->mx_sb_len, lr->iovec_count, lr->dxfer_len, lr->dxferp, 274 1.1.2.2 skrll lr->cmdp, lr->sbp, lr->timeout, lr->flags, lr->pack_id, 275 1.1.2.2 skrll lr->usr_ptr, lr->status, lr->masked_status, lr->sb_len_wr, 276 1.1.2.2 skrll lr->host_status, lr->driver_status, lr->resid, lr->duration, 277 1.1.2.2 skrll lr->info); 278 1.1.2.2 skrll } 279 1.1.2.2 skrll 280 1.1.2.2 skrll static void 281 1.1.2.2 skrll dump_scsireq(struct scsireq *br) 282 1.1.2.2 skrll { 283 1.1.2.2 skrll int i; 284 1.1.2.2 skrll printf("bsdreq [flags=%lx, timeout=%lu, cmd=[ ", 285 1.1.2.2 skrll br->flags, br->timeout); 286 1.1.2.2 skrll for (i = 0; i < sizeof(br->cmd) / sizeof(br->cmd[0]); i++) 287 1.1.2.2 skrll printf("%.2u ", br->cmd[i]); 288 1.1.2.2 skrll printf("], cmdlen=%u, databuf=%p, datalen=%lu, datalen_used=%lu, " 289 1.1.2.2 skrll "sense=[ ", 290 1.1.2.2 skrll br->cmdlen, br->databuf, br->datalen, br->datalen_used); 291 1.1.2.2 skrll for (i = 0; i < sizeof(br->sense) / sizeof(br->sense[0]); i++) 292 1.1.2.2 skrll printf("%.2u ", br->sense[i]); 293 1.1.2.2 skrll printf("], senselen=%u, senselen_used=%u, status=%u, retsts=%u, " 294 1.1.2.2 skrll "error=%d]\n", 295 1.1.2.2 skrll br->senselen, br->senselen_used, br->status, br->retsts, br->error); 296 1.1.2.2 skrll } 297 1.1.2.2 skrll #endif 298
Indexes created Tue Sep 30 11:09:46 GMT 2025