| File: | dev/ic/aic79xx.c |
| Warning: | line 8988, column 3 Value stored to 'found' is never read |
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| 1 | /* $OpenBSD: aic79xx.c,v 1.67 2022/01/09 05:42:38 jsg Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2004 Milos Urbanek, Kenneth R. Westerback & Marco Peereboom |
| 5 | * All rights reserved. |
| 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 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR |
| 20 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * Core routines and tables shareable across OS platforms. |
| 32 | * |
| 33 | * Copyright (c) 1994-2002, 2004 Justin T. Gibbs. |
| 34 | * Copyright (c) 2000-2003 Adaptec Inc. |
| 35 | * All rights reserved. |
| 36 | * |
| 37 | * Redistribution and use in source and binary forms, with or without |
| 38 | * modification, are permitted provided that the following conditions |
| 39 | * are met: |
| 40 | * 1. Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions, and the following disclaimer, |
| 42 | * without modification. |
| 43 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 44 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 45 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 46 | * including a substantially similar Disclaimer requirement for further |
| 47 | * binary redistribution. |
| 48 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 49 | * of any contributors may be used to endorse or promote products derived |
| 50 | * from this software without specific prior written permission. |
| 51 | * |
| 52 | * Alternatively, this software may be distributed under the terms of the |
| 53 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 54 | * Software Foundation. |
| 55 | * |
| 56 | * NO WARRANTY |
| 57 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 58 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 59 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 60 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 61 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 62 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 63 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 64 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 65 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 66 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 67 | * POSSIBILITY OF SUCH DAMAGES. |
| 68 | * |
| 69 | * Id: //depot/aic7xxx/aic7xxx/aic79xx.c#246 |
| 70 | * |
| 71 | * FreeBSD: src/sys/dev/aic7xxx/aic79xx.c,v 1.33 2004/11/18 20:22:30 gibbs Exp |
| 72 | */ |
| 73 | |
| 74 | #include <dev/ic/aic79xx_openbsd.h> |
| 75 | #include <dev/ic/aic79xx_inline.h> |
| 76 | #include <dev/ic/aic79xx.h> |
| 77 | |
| 78 | #include <dev/microcode/aic7xxx/aicasm_insformat.h> |
| 79 | |
| 80 | /******************************** Globals *************************************/ |
| 81 | struct ahd_softc_tailq ahd_tailq = TAILQ_HEAD_INITIALIZER(ahd_tailq){ ((void *)0), &(ahd_tailq).tqh_first }; |
| 82 | uint32_t ahd_attach_to_HostRAID_controllers = 1; |
| 83 | |
| 84 | /***************************** Lookup Tables **********************************/ |
| 85 | char *ahd_chip_names[] = |
| 86 | { |
| 87 | "NONE", |
| 88 | "aic7901", |
| 89 | "aic7902", |
| 90 | "aic7901A" |
| 91 | }; |
| 92 | |
| 93 | /* |
| 94 | * Hardware error codes. |
| 95 | */ |
| 96 | struct ahd_hard_error_entry { |
| 97 | uint8_t errno; |
| 98 | char *errmesg; |
| 99 | }; |
| 100 | |
| 101 | static struct ahd_hard_error_entry ahd_hard_errors[] = { |
| 102 | { DSCTMOUT0x02, "Discard Timer has timed out" }, |
| 103 | { ILLOPCODE0x04, "Illegal Opcode in sequencer program" }, |
| 104 | { SQPARERR0x08, "Sequencer Parity Error" }, |
| 105 | { DPARERR0x10, "Data-path Parity Error" }, |
| 106 | { MPARERR0x20, "Scratch or SCB Memory Parity Error" }, |
| 107 | { CIOPARERR0x80, "CIOBUS Parity Error" }, |
| 108 | }; |
| 109 | static const u_int num_errors = NUM_ELEMENTS(ahd_hard_errors)(sizeof(ahd_hard_errors) / sizeof(*ahd_hard_errors)); |
| 110 | |
| 111 | static struct ahd_phase_table_entry ahd_phase_table[] = |
| 112 | { |
| 113 | { P_DATAOUT0x00, MSG_NOOP0x08, "in Data-out phase" }, |
| 114 | { P_DATAIN0x40, MSG_INITIATOR_DET_ERR0x05, "in Data-in phase" }, |
| 115 | { P_DATAOUT_DT0x20, MSG_NOOP0x08, "in DT Data-out phase" }, |
| 116 | { P_DATAIN_DT0x60, MSG_INITIATOR_DET_ERR0x05, "in DT Data-in phase" }, |
| 117 | { P_COMMAND0x80, MSG_NOOP0x08, "in Command phase" }, |
| 118 | { P_MESGOUT0xa0, MSG_NOOP0x08, "in Message-out phase" }, |
| 119 | { P_STATUS0xc0, MSG_INITIATOR_DET_ERR0x05, "in Status phase" }, |
| 120 | { P_MESGIN0xe0, MSG_PARITY_ERROR0x09, "in Message-in phase" }, |
| 121 | { P_BUSFREE0x01, MSG_NOOP0x08, "while idle" }, |
| 122 | { 0, MSG_NOOP0x08, "in unknown phase" } |
| 123 | }; |
| 124 | |
| 125 | /* |
| 126 | * In most cases we only wish to iterate over real phases, so |
| 127 | * exclude the last element from the count. |
| 128 | */ |
| 129 | static const u_int num_phases = NUM_ELEMENTS(ahd_phase_table)(sizeof(ahd_phase_table) / sizeof(*ahd_phase_table)) - 1; |
| 130 | |
| 131 | /* Our Sequencer Program */ |
| 132 | #include <dev/microcode/aic7xxx/aic79xx_seq.h> |
| 133 | |
| 134 | /**************************** Function Declarations ***************************/ |
| 135 | void ahd_handle_transmission_error(struct ahd_softc *ahd); |
| 136 | void ahd_handle_lqiphase_error(struct ahd_softc *ahd, |
| 137 | u_int lqistat1); |
| 138 | int ahd_handle_pkt_busfree(struct ahd_softc *ahd, |
| 139 | u_int busfreetime); |
| 140 | int ahd_handle_nonpkt_busfree(struct ahd_softc *ahd); |
| 141 | void ahd_handle_proto_violation(struct ahd_softc *ahd); |
| 142 | void ahd_force_renegotiation(struct ahd_softc *ahd, |
| 143 | struct ahd_devinfo *devinfo); |
| 144 | |
| 145 | struct ahd_tmode_tstate* |
| 146 | ahd_alloc_tstate(struct ahd_softc *ahd, |
| 147 | u_int scsi_id, char channel); |
| 148 | #ifdef AHD_TARGET_MODE |
| 149 | void ahd_free_tstate(struct ahd_softc *ahd, |
| 150 | u_int scsi_id, char channel, int force); |
| 151 | #endif |
| 152 | void ahd_devlimited_syncrate(struct ahd_softc *ahd, |
| 153 | struct ahd_initiator_tinfo *, |
| 154 | u_int *period, |
| 155 | u_int *ppr_options, |
| 156 | role_t role); |
| 157 | void ahd_update_neg_table(struct ahd_softc *ahd, |
| 158 | struct ahd_devinfo *devinfo, |
| 159 | struct ahd_transinfo *tinfo); |
| 160 | void ahd_update_pending_scbs(struct ahd_softc *ahd); |
| 161 | void ahd_fetch_devinfo(struct ahd_softc *ahd, |
| 162 | struct ahd_devinfo *devinfo); |
| 163 | void ahd_scb_devinfo(struct ahd_softc *ahd, |
| 164 | struct ahd_devinfo *devinfo, |
| 165 | struct scb *scb); |
| 166 | void ahd_setup_initiator_msgout(struct ahd_softc *ahd, |
| 167 | struct ahd_devinfo *devinfo, |
| 168 | struct scb *scb); |
| 169 | void ahd_build_transfer_msg(struct ahd_softc *ahd, |
| 170 | struct ahd_devinfo *devinfo); |
| 171 | void ahd_construct_sdtr(struct ahd_softc *ahd, |
| 172 | struct ahd_devinfo *devinfo, |
| 173 | u_int period, u_int offset); |
| 174 | void ahd_construct_wdtr(struct ahd_softc *ahd, |
| 175 | struct ahd_devinfo *devinfo, |
| 176 | u_int bus_width); |
| 177 | void ahd_construct_ppr(struct ahd_softc *ahd, |
| 178 | struct ahd_devinfo *devinfo, |
| 179 | u_int period, u_int offset, |
| 180 | u_int bus_width, u_int ppr_options); |
| 181 | void ahd_clear_msg_state(struct ahd_softc *ahd); |
| 182 | void ahd_handle_message_phase(struct ahd_softc *ahd); |
| 183 | typedef enum { |
| 184 | AHDMSG_1B, |
| 185 | AHDMSG_2B, |
| 186 | AHDMSG_EXT |
| 187 | } ahd_msgtype; |
| 188 | int ahd_sent_msg(struct ahd_softc *ahd, ahd_msgtype type, |
| 189 | u_int msgval, int full); |
| 190 | int ahd_parse_msg(struct ahd_softc *ahd, |
| 191 | struct ahd_devinfo *devinfo); |
| 192 | int ahd_handle_msg_reject(struct ahd_softc *ahd, |
| 193 | struct ahd_devinfo *devinfo); |
| 194 | void ahd_handle_ign_wide_residue(struct ahd_softc *ahd, |
| 195 | struct ahd_devinfo *devinfo); |
| 196 | void ahd_reinitialize_dataptrs(struct ahd_softc *ahd); |
| 197 | void ahd_handle_devreset(struct ahd_softc *ahd, |
| 198 | struct ahd_devinfo *devinfo, |
| 199 | u_int lun, cam_status status, |
| 200 | char *message, int verbose_level); |
| 201 | #if AHD_TARGET_MODE |
| 202 | void ahd_setup_target_msgin(struct ahd_softc *ahd, |
| 203 | struct ahd_devinfo *devinfo, |
| 204 | struct scb *scb); |
| 205 | #endif |
| 206 | |
| 207 | u_int ahd_sglist_size(struct ahd_softc *ahd); |
| 208 | u_int ahd_sglist_allocsize(struct ahd_softc *ahd); |
| 209 | void ahd_initialize_hscbs(struct ahd_softc *ahd); |
| 210 | int ahd_init_scbdata(struct ahd_softc *ahd); |
| 211 | struct scb * ahd_find_scb_by_tag(struct ahd_softc *, u_int); |
| 212 | void ahd_fini_scbdata(struct ahd_softc *ahd); |
| 213 | void ahd_setup_iocell_workaround(struct ahd_softc *ahd); |
| 214 | void ahd_iocell_first_selection(struct ahd_softc *ahd); |
| 215 | void ahd_chip_init(struct ahd_softc *ahd); |
| 216 | void ahd_qinfifo_requeue(struct ahd_softc *ahd, |
| 217 | struct scb *prev_scb, |
| 218 | struct scb *scb); |
| 219 | int ahd_qinfifo_count(struct ahd_softc *ahd); |
| 220 | int ahd_search_scb_list(struct ahd_softc *ahd, int target, |
| 221 | char channel, int lun, u_int tag, |
| 222 | role_t role, uint32_t status, |
| 223 | ahd_search_action action, |
| 224 | u_int *list_head, u_int *list_tail, |
| 225 | u_int tid); |
| 226 | void ahd_stitch_tid_list(struct ahd_softc *ahd, |
| 227 | u_int tid_prev, u_int tid_cur, |
| 228 | u_int tid_next); |
| 229 | void ahd_add_scb_to_free_list(struct ahd_softc *ahd, |
| 230 | u_int scbid); |
| 231 | u_int ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid, |
| 232 | u_int prev, u_int next, u_int tid); |
| 233 | void ahd_reset_current_bus(struct ahd_softc *ahd); |
| 234 | ahd_callback_t ahd_reset_poll; |
| 235 | ahd_callback_t ahd_stat_timer; |
| 236 | #ifdef AHD_DUMP_SEQ |
| 237 | void ahd_dumpseq(struct ahd_softc *ahd); |
| 238 | #endif |
| 239 | void ahd_loadseq(struct ahd_softc *ahd); |
| 240 | int ahd_check_patch(struct ahd_softc *ahd, |
| 241 | const struct patch **start_patch, |
| 242 | u_int start_instr, u_int *skip_addr); |
| 243 | u_int ahd_resolve_seqaddr(struct ahd_softc *ahd, |
| 244 | u_int address); |
| 245 | void ahd_download_instr(struct ahd_softc *ahd, |
| 246 | u_int instrptr, uint8_t *dconsts); |
| 247 | int ahd_probe_stack_size(struct ahd_softc *ahd); |
| 248 | int ahd_scb_active_in_fifo(struct ahd_softc *ahd, |
| 249 | struct scb *scb); |
| 250 | void ahd_run_data_fifo(struct ahd_softc *ahd, |
| 251 | struct scb *scb); |
| 252 | |
| 253 | #ifdef AHD_TARGET_MODE |
| 254 | void ahd_queue_lstate_event(struct ahd_softc *ahd, |
| 255 | struct ahd_tmode_lstate *lstate, |
| 256 | u_int initiator_id, |
| 257 | u_int event_type, |
| 258 | u_int event_arg); |
| 259 | void ahd_update_scsiid(struct ahd_softc *ahd, |
| 260 | u_int targid_mask); |
| 261 | int ahd_handle_target_cmd(struct ahd_softc *ahd, |
| 262 | struct target_cmd *cmd); |
| 263 | #endif |
| 264 | |
| 265 | /************************** Added for porting to NetBSD ***********************/ |
| 266 | int ahd_createdmamem(struct ahd_softc *, size_t, struct map_node *, |
| 267 | const char *); |
| 268 | |
| 269 | void ahd_freedmamem(struct ahd_softc *, struct map_node *); |
| 270 | |
| 271 | /******************************** Private Inlines *****************************/ |
| 272 | int ahd_currently_packetized(struct ahd_softc *ahd); |
| 273 | int ahd_set_active_fifo(struct ahd_softc *ahd); |
| 274 | |
| 275 | static inline void |
| 276 | ahd_assert_atn(struct ahd_softc *ahd) |
| 277 | { |
| 278 | ahd_outb(ahd, SCSISIGO, ATNO)(((ahd)->tags[(0x40) >> 8])->write_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF), (0x10))); |
| 279 | } |
| 280 | |
| 281 | /* |
| 282 | * Determine if the current connection has a packetized |
| 283 | * agreement. This does not necessarily mean that we |
| 284 | * are currently in a packetized transfer. We could |
| 285 | * just as easily be sending or receiving a message. |
| 286 | */ |
| 287 | int |
| 288 | ahd_currently_packetized(struct ahd_softc *ahd) |
| 289 | { |
| 290 | ahd_mode_state saved_modes; |
| 291 | int packetized; |
| 292 | |
| 293 | saved_modes = ahd_save_modes(ahd); |
| 294 | if ((ahd->bugs & AHD_PKTIZED_STATUS_BUG) != 0) { |
| 295 | /* |
| 296 | * The packetized bit refers to the last |
| 297 | * connection, not the current one. Check |
| 298 | * for non-zero LQISTATE instead. |
| 299 | */ |
| 300 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 301 | packetized = ahd_inb(ahd, LQISTATE)(((ahd)->tags[(0x4e) >> 8])->read_1(((ahd)->bshs [(0x4e) >> 8]), ((0x4e) & 0xFF))) != 0; |
| 302 | } else { |
| 303 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 304 | packetized = ahd_inb(ahd, LQISTAT2)(((ahd)->tags[(0x52) >> 8])->read_1(((ahd)->bshs [(0x52) >> 8]), ((0x52) & 0xFF))) & PACKETIZED0x80; |
| 305 | } |
| 306 | ahd_restore_modes(ahd, saved_modes); |
| 307 | return (packetized); |
| 308 | } |
| 309 | |
| 310 | int |
| 311 | ahd_set_active_fifo(struct ahd_softc *ahd) |
| 312 | { |
| 313 | u_int active_fifo; |
| 314 | |
| 315 | AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK)ahd_assert_modes(ahd, (0x01 << (AHD_MODE_SCSI)), (0x01 << (AHD_MODE_SCSI)), "/usr/src/sys/dev/ic/aic79xx.c", 315);; |
| 316 | active_fifo = ahd_inb(ahd, DFFSTAT)(((ahd)->tags[(0x3f) >> 8])->read_1(((ahd)->bshs [(0x3f) >> 8]), ((0x3f) & 0xFF))) & CURRFIFO0x03; |
| 317 | switch (active_fifo) { |
| 318 | case 0: |
| 319 | case 1: |
| 320 | ahd_set_modes(ahd, active_fifo, active_fifo); |
| 321 | return (1); |
| 322 | default: |
| 323 | return (0); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | /************************* Sequencer Execution Control ************************/ |
| 328 | /* |
| 329 | * Restart the sequencer program from address zero |
| 330 | */ |
| 331 | void |
| 332 | ahd_restart(struct ahd_softc *ahd) |
| 333 | { |
| 334 | |
| 335 | ahd_pause(ahd); |
| 336 | |
| 337 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 338 | |
| 339 | /* No more pending messages */ |
| 340 | ahd_clear_msg_state(ahd); |
| 341 | ahd_outb(ahd, SCSISIGO, 0)(((ahd)->tags[(0x40) >> 8])->write_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF), (0))); /* De-assert BSY */ |
| 342 | ahd_outb(ahd, MSG_OUT, MSG_NOOP)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0x08))); /* No message to send */ |
| 343 | ahd_outb(ahd, SXFRCTL1, ahd_inb(ahd, SXFRCTL1) & ~BITBUCKET)(((ahd)->tags[(0x3d) >> 8])->write_1(((ahd)->bshs [(0x3d) >> 8]), ((0x3d) & 0xFF), ((((ahd)->tags[ (0x3d) >> 8])->read_1(((ahd)->bshs[(0x3d) >> 8]), ((0x3d) & 0xFF))) & ~0x80))); |
| 344 | ahd_outb(ahd, SEQINTCTL, 0)(((ahd)->tags[(0xd9) >> 8])->write_1(((ahd)->bshs [(0xd9) >> 8]), ((0xd9) & 0xFF), (0))); |
| 345 | ahd_outb(ahd, LASTPHASE, P_BUSFREE)(((ahd)->tags[(0x13c) >> 8])->write_1(((ahd)-> bshs[(0x13c) >> 8]), ((0x13c) & 0xFF), (0x01))); |
| 346 | ahd_outb(ahd, SEQ_FLAGS, 0)(((ahd)->tags[(0x139) >> 8])->write_1(((ahd)-> bshs[(0x139) >> 8]), ((0x139) & 0xFF), (0))); |
| 347 | ahd_outb(ahd, SAVED_SCSIID, 0xFF)(((ahd)->tags[(0x13a) >> 8])->write_1(((ahd)-> bshs[(0x13a) >> 8]), ((0x13a) & 0xFF), (0xFF))); |
| 348 | ahd_outb(ahd, SAVED_LUN, 0xFF)(((ahd)->tags[(0x13b) >> 8])->write_1(((ahd)-> bshs[(0x13b) >> 8]), ((0x13b) & 0xFF), (0xFF))); |
| 349 | |
| 350 | /* |
| 351 | * Ensure that the sequencer's idea of TQINPOS |
| 352 | * matches our own. The sequencer increments TQINPOS |
| 353 | * only after it sees a DMA complete and a reset could |
| 354 | * occur before the increment leaving the kernel to believe |
| 355 | * the command arrived but the sequencer to not. |
| 356 | */ |
| 357 | ahd_outb(ahd, TQINPOS, ahd->tqinfifonext)(((ahd)->tags[(0x13f) >> 8])->write_1(((ahd)-> bshs[(0x13f) >> 8]), ((0x13f) & 0xFF), (ahd->tqinfifonext ))); |
| 358 | |
| 359 | /* Always allow reselection */ |
| 360 | ahd_outb(ahd, SCSISEQ1,(((ahd)->tags[(0x3b) >> 8])->write_1(((ahd)->bshs [(0x3b) >> 8]), ((0x3b) & 0xFF), ((((ahd)->tags[ (0x14b) >> 8])->read_1(((ahd)->bshs[(0x14b) >> 8]), ((0x14b) & 0xFF))) & (0x20|0x10|0x02)))) |
| 361 | ahd_inb(ahd, SCSISEQ_TEMPLATE) & (ENSELI|ENRSELI|ENAUTOATNP))(((ahd)->tags[(0x3b) >> 8])->write_1(((ahd)->bshs [(0x3b) >> 8]), ((0x3b) & 0xFF), ((((ahd)->tags[ (0x14b) >> 8])->read_1(((ahd)->bshs[(0x14b) >> 8]), ((0x14b) & 0xFF))) & (0x20|0x10|0x02)))); |
| 362 | ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN); |
| 363 | |
| 364 | /* |
| 365 | * Clear any pending sequencer interrupt. It is no |
| 366 | * longer relevant since we're resetting the Program |
| 367 | * Counter. |
| 368 | */ |
| 369 | ahd_outb(ahd, CLRINT, CLRSEQINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x04))); |
| 370 | |
| 371 | ahd_outb(ahd, SEQCTL0, FASTMODE|SEQRESET)(((ahd)->tags[(0xd6) >> 8])->write_1(((ahd)->bshs [(0xd6) >> 8]), ((0xd6) & 0xFF), (0x10|0x02))); |
| 372 | ahd_unpause(ahd); |
| 373 | } |
| 374 | |
| 375 | void |
| 376 | ahd_clear_fifo(struct ahd_softc *ahd, u_int fifo) |
| 377 | { |
| 378 | ahd_mode_state saved_modes; |
| 379 | |
| 380 | #ifdef AHD_DEBUG |
| 381 | if ((ahd_debug & AHD_SHOW_FIFOS) != 0) |
| 382 | printf("%s: Clearing FIFO %d\n", ahd_name(ahd), fifo); |
| 383 | #endif |
| 384 | saved_modes = ahd_save_modes(ahd); |
| 385 | ahd_set_modes(ahd, fifo, fifo); |
| 386 | ahd_outb(ahd, DFFSXFRCTL, RSTCHN|CLRSHCNT)(((ahd)->tags[(0x5a) >> 8])->write_1(((ahd)->bshs [(0x5a) >> 8]), ((0x5a) & 0xFF), (0x01|0x04))); |
| 387 | if ((ahd_inb(ahd, SG_STATE)(((ahd)->tags[(0xa6) >> 8])->read_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF))) & FETCH_INPROG0x04) != 0) |
| 388 | ahd_outb(ahd, CCSGCTL, CCSGRESET)(((ahd)->tags[(0xad) >> 8])->write_1(((ahd)->bshs [(0xad) >> 8]), ((0xad) & 0xFF), (0x01))); |
| 389 | ahd_outb(ahd, LONGJMP_ADDR + 1, INVALID_ADDR)(((ahd)->tags[(0xf8 + 1) >> 8])->write_1(((ahd)-> bshs[(0xf8 + 1) >> 8]), ((0xf8 + 1) & 0xFF), (0x80) )); |
| 390 | ahd_outb(ahd, SG_STATE, 0)(((ahd)->tags[(0xa6) >> 8])->write_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF), (0))); |
| 391 | ahd_restore_modes(ahd, saved_modes); |
| 392 | } |
| 393 | |
| 394 | /************************* Input/Output Queues ********************************/ |
| 395 | /* |
| 396 | * Flush and completed commands that are sitting in the command |
| 397 | * complete queues down on the chip but have yet to be dma'ed back up. |
| 398 | */ |
| 399 | void |
| 400 | ahd_flush_qoutfifo(struct ahd_softc *ahd) |
| 401 | { |
| 402 | struct scb *scb; |
| 403 | ahd_mode_state saved_modes; |
| 404 | u_int saved_scbptr; |
| 405 | u_int ccscbctl; |
| 406 | u_int scbid; |
| 407 | u_int next_scbid; |
| 408 | |
| 409 | saved_modes = ahd_save_modes(ahd); |
| 410 | |
| 411 | /* |
| 412 | * Flush the good status FIFO for completed packetized commands. |
| 413 | */ |
| 414 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 415 | saved_scbptr = ahd_get_scbptr(ahd); |
| 416 | while ((ahd_inb(ahd, LQISTAT2)(((ahd)->tags[(0x52) >> 8])->read_1(((ahd)->bshs [(0x52) >> 8]), ((0x52) & 0xFF))) & LQIGSAVAIL0x01) != 0) { |
| 417 | u_int fifo_mode; |
| 418 | u_int i; |
| 419 | |
| 420 | scbid = ahd_inw(ahd, GSFIFO0x58); |
| 421 | scb = ahd_lookup_scb(ahd, scbid); |
| 422 | if (scb == NULL((void *)0)) { |
| 423 | printf("%s: Warning - GSFIFO SCB %d invalid\n", |
| 424 | ahd_name(ahd), scbid); |
| 425 | continue; |
| 426 | } |
| 427 | /* |
| 428 | * Determine if this transaction is still active in |
| 429 | * any FIFO. If it is, we must flush that FIFO to |
| 430 | * the host before completing the command. |
| 431 | */ |
| 432 | fifo_mode = 0; |
| 433 | rescan_fifos: |
| 434 | for (i = 0; i < 2; i++) { |
| 435 | /* Toggle to the other mode. */ |
| 436 | fifo_mode ^= 1; |
| 437 | ahd_set_modes(ahd, fifo_mode, fifo_mode); |
| 438 | |
| 439 | if (ahd_scb_active_in_fifo(ahd, scb) == 0) |
| 440 | continue; |
| 441 | |
| 442 | ahd_run_data_fifo(ahd, scb); |
| 443 | |
| 444 | /* |
| 445 | * Running this FIFO may cause a CFG4DATA for |
| 446 | * this same transaction to assert in the other |
| 447 | * FIFO or a new snapshot SAVEPTRS interrupt |
| 448 | * in this FIFO. Even running a FIFO may not |
| 449 | * clear the transaction if we are still waiting |
| 450 | * for data to drain to the host. We must loop |
| 451 | * until the transaction is not active in either |
| 452 | * FIFO just to be sure. Reset our loop counter |
| 453 | * so we will visit both FIFOs again before |
| 454 | * declaring this transaction finished. We |
| 455 | * also delay a bit so that status has a chance |
| 456 | * to change before we look at this FIFO again. |
| 457 | */ |
| 458 | aic_delay(200)(*delay_func)(200); |
| 459 | goto rescan_fifos; |
| 460 | } |
| 461 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 462 | ahd_set_scbptr(ahd, scbid); |
| 463 | if ((ahd_inb_scbram(ahd, SCB_SGPTR0x1a4) & SG_LIST_NULL0x01) == 0 |
| 464 | && ((ahd_inb_scbram(ahd, SCB_SGPTR0x1a4) & SG_FULL_RESID0x02) != 0 |
| 465 | || (ahd_inb_scbram(ahd, SCB_RESIDUAL_SGPTR0x184) |
| 466 | & SG_LIST_NULL0x01) != 0)) { |
| 467 | u_int comp_head; |
| 468 | |
| 469 | /* |
| 470 | * The transfer completed with a residual. |
| 471 | * Place this SCB on the complete DMA list |
| 472 | * so that we update our in-core copy of the |
| 473 | * SCB before completing the command. |
| 474 | */ |
| 475 | ahd_outb(ahd, SCB_SCSI_STATUS, 0)(((ahd)->tags[(0x188) >> 8])->write_1(((ahd)-> bshs[(0x188) >> 8]), ((0x188) & 0xFF), (0))); |
| 476 | ahd_outb(ahd, SCB_SGPTR,(((ahd)->tags[(0x1a4) >> 8])->write_1(((ahd)-> bshs[(0x1a4) >> 8]), ((0x1a4) & 0xFF), (ahd_inb_scbram (ahd, 0x1a4) | 0x04))) |
| 477 | ahd_inb_scbram(ahd, SCB_SGPTR)(((ahd)->tags[(0x1a4) >> 8])->write_1(((ahd)-> bshs[(0x1a4) >> 8]), ((0x1a4) & 0xFF), (ahd_inb_scbram (ahd, 0x1a4) | 0x04))) |
| 478 | | SG_STATUS_VALID)(((ahd)->tags[(0x1a4) >> 8])->write_1(((ahd)-> bshs[(0x1a4) >> 8]), ((0x1a4) & 0xFF), (ahd_inb_scbram (ahd, 0x1a4) | 0x04))); |
| 479 | ahd_outw(ahd, SCB_TAG0x190, scbid); |
| 480 | ahd_outw(ahd, SCB_NEXT_COMPLETE0x18c, SCB_LIST_NULL0xFF00); |
| 481 | comp_head = ahd_inw(ahd, COMPLETE_DMA_SCB_HEAD0x12c); |
| 482 | if (SCBID_IS_NULL(comp_head)(((comp_head) & 0xFF00 ) == 0xFF00)) { |
| 483 | ahd_outw(ahd, COMPLETE_DMA_SCB_HEAD0x12c, scbid); |
| 484 | ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL0x12e, scbid); |
| 485 | } else { |
| 486 | u_int tail; |
| 487 | |
| 488 | tail = ahd_inw(ahd, COMPLETE_DMA_SCB_TAIL0x12e); |
| 489 | ahd_set_scbptr(ahd, tail); |
| 490 | ahd_outw(ahd, SCB_NEXT_COMPLETE0x18c, scbid); |
| 491 | ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL0x12e, scbid); |
| 492 | ahd_set_scbptr(ahd, scbid); |
| 493 | } |
| 494 | } else |
| 495 | ahd_complete_scb(ahd, scb); |
| 496 | } |
| 497 | ahd_set_scbptr(ahd, saved_scbptr); |
| 498 | |
| 499 | /* |
| 500 | * Setup for command channel portion of flush. |
| 501 | */ |
| 502 | ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN); |
| 503 | |
| 504 | /* |
| 505 | * Wait for any inprogress DMA to complete and clear DMA state |
| 506 | * if this if for an SCB in the qinfifo. |
| 507 | */ |
| 508 | while (((ccscbctl = ahd_inb(ahd, CCSCBCTL)(((ahd)->tags[(0xad) >> 8])->read_1(((ahd)->bshs [(0xad) >> 8]), ((0xad) & 0xFF)))) & (CCARREN0x10|CCSCBEN0x08)) != 0) { |
| 509 | |
| 510 | if ((ccscbctl & (CCSCBDIR0x04|CCARREN0x10)) == (CCSCBDIR0x04|CCARREN0x10)) { |
| 511 | if ((ccscbctl & ARRDONE0x40) != 0) |
| 512 | break; |
| 513 | } else if ((ccscbctl & CCSCBDONE0x80) != 0) |
| 514 | break; |
| 515 | aic_delay(200)(*delay_func)(200); |
| 516 | } |
| 517 | /* |
| 518 | * We leave the sequencer to cleanup in the case of DMA's to |
| 519 | * update the qoutfifo. In all other cases (DMA's to the |
| 520 | * chip or a push of an SCB from the COMPLETE_DMA_SCB list), |
| 521 | * we disable the DMA engine so that the sequencer will not |
| 522 | * attempt to handle the DMA completion. |
| 523 | */ |
| 524 | if ((ccscbctl & CCSCBDIR0x04) != 0 || (ccscbctl & ARRDONE0x40) != 0) |
| 525 | ahd_outb(ahd, CCSCBCTL, ccscbctl & ~(CCARREN|CCSCBEN))(((ahd)->tags[(0xad) >> 8])->write_1(((ahd)->bshs [(0xad) >> 8]), ((0xad) & 0xFF), (ccscbctl & ~( 0x10|0x08)))); |
| 526 | |
| 527 | /* |
| 528 | * Complete any SCBs that just finished |
| 529 | * being DMA'ed into the qoutfifo. |
| 530 | */ |
| 531 | ahd_run_qoutfifo(ahd); |
| 532 | |
| 533 | saved_scbptr = ahd_get_scbptr(ahd); |
| 534 | /* |
| 535 | * Manually update/complete any completed SCBs that are waiting to be |
| 536 | * DMA'ed back up to the host. |
| 537 | */ |
| 538 | scbid = ahd_inw(ahd, COMPLETE_DMA_SCB_HEAD0x12c); |
| 539 | while (!SCBID_IS_NULL(scbid)(((scbid) & 0xFF00 ) == 0xFF00)) { |
| 540 | uint8_t *hscb_ptr; |
| 541 | u_int i; |
| 542 | |
| 543 | ahd_set_scbptr(ahd, scbid); |
| 544 | next_scbid = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE0x18c); |
| 545 | scb = ahd_lookup_scb(ahd, scbid); |
| 546 | if (scb == NULL((void *)0)) { |
| 547 | printf("%s: Warning - DMA-up and complete " |
| 548 | "SCB %d invalid\n", ahd_name(ahd), scbid); |
| 549 | continue; |
| 550 | } |
| 551 | hscb_ptr = (uint8_t *)scb->hscb; |
| 552 | for (i = 0; i < sizeof(struct hardware_scb); i++) |
| 553 | *hscb_ptr++ = ahd_inb_scbram(ahd, SCB_BASE0x180 + i); |
| 554 | |
| 555 | ahd_complete_scb(ahd, scb); |
| 556 | scbid = next_scbid; |
| 557 | } |
| 558 | ahd_outw(ahd, COMPLETE_DMA_SCB_HEAD0x12c, SCB_LIST_NULL0xFF00); |
| 559 | ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL0x12e, SCB_LIST_NULL0xFF00); |
| 560 | |
| 561 | scbid = ahd_inw(ahd, COMPLETE_ON_QFREEZE_HEAD0x130); |
| 562 | while (!SCBID_IS_NULL(scbid)(((scbid) & 0xFF00 ) == 0xFF00)) { |
| 563 | |
| 564 | ahd_set_scbptr(ahd, scbid); |
| 565 | next_scbid = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE0x18c); |
| 566 | scb = ahd_lookup_scb(ahd, scbid); |
| 567 | if (scb == NULL((void *)0)) { |
| 568 | printf("%s: Warning - Complete Qfrz SCB %d invalid\n", |
| 569 | ahd_name(ahd), scbid); |
| 570 | continue; |
| 571 | } |
| 572 | |
| 573 | ahd_complete_scb(ahd, scb); |
| 574 | scbid = next_scbid; |
| 575 | } |
| 576 | ahd_outw(ahd, COMPLETE_ON_QFREEZE_HEAD0x130, SCB_LIST_NULL0xFF00); |
| 577 | |
| 578 | scbid = ahd_inw(ahd, COMPLETE_SCB_HEAD0x128); |
| 579 | while (!SCBID_IS_NULL(scbid)(((scbid) & 0xFF00 ) == 0xFF00)) { |
| 580 | |
| 581 | ahd_set_scbptr(ahd, scbid); |
| 582 | next_scbid = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE0x18c); |
| 583 | scb = ahd_lookup_scb(ahd, scbid); |
| 584 | if (scb == NULL((void *)0)) { |
| 585 | printf("%s: Warning - Complete SCB %d invalid\n", |
| 586 | ahd_name(ahd), scbid); |
| 587 | continue; |
| 588 | } |
| 589 | |
| 590 | ahd_complete_scb(ahd, scb); |
| 591 | scbid = next_scbid; |
| 592 | } |
| 593 | ahd_outw(ahd, COMPLETE_SCB_HEAD0x128, SCB_LIST_NULL0xFF00); |
| 594 | |
| 595 | /* |
| 596 | * Restore state. |
| 597 | */ |
| 598 | ahd_set_scbptr(ahd, saved_scbptr); |
| 599 | ahd_restore_modes(ahd, saved_modes); |
| 600 | ahd->flags |= AHD_UPDATE_PEND_CMDS; |
| 601 | } |
| 602 | |
| 603 | /* |
| 604 | * Determine if an SCB for a packetized transaction |
| 605 | * is active in a FIFO. |
| 606 | */ |
| 607 | int |
| 608 | ahd_scb_active_in_fifo(struct ahd_softc *ahd, struct scb *scb) |
| 609 | { |
| 610 | |
| 611 | /* |
| 612 | * The FIFO is only active for our transaction if |
| 613 | * the SCBPTR matches the SCB's ID and the firmware |
| 614 | * has installed a handler for the FIFO or we have |
| 615 | * a pending SAVEPTRS or CFG4DATA interrupt. |
| 616 | */ |
| 617 | if (ahd_get_scbptr(ahd) != SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)) |
| 618 | || ((ahd_inb(ahd, LONGJMP_ADDR+1)(((ahd)->tags[(0xf8 +1) >> 8])->read_1(((ahd)-> bshs[(0xf8 +1) >> 8]), ((0xf8 +1) & 0xFF))) & INVALID_ADDR0x80) != 0 |
| 619 | && (ahd_inb(ahd, SEQINTSRC)(((ahd)->tags[(0x5b) >> 8])->read_1(((ahd)->bshs [(0x5b) >> 8]), ((0x5b) & 0xFF))) & (CFG4DATA0x10|SAVEPTRS0x20)) == 0)) |
| 620 | return (0); |
| 621 | |
| 622 | return (1); |
| 623 | } |
| 624 | |
| 625 | /* |
| 626 | * Run a data fifo to completion for a transaction we know |
| 627 | * has completed across the SCSI bus (good status has been |
| 628 | * received). We are already set to the correct FIFO mode |
| 629 | * on entry to this routine. |
| 630 | * |
| 631 | * This function attempts to operate exactly as the firmware |
| 632 | * would when running this FIFO. Care must be taken to update |
| 633 | * this routine any time the firmware's FIFO algorithm is |
| 634 | * changed. |
| 635 | */ |
| 636 | void |
| 637 | ahd_run_data_fifo(struct ahd_softc *ahd, struct scb *scb) |
| 638 | { |
| 639 | u_int seqintsrc; |
| 640 | |
| 641 | seqintsrc = ahd_inb(ahd, SEQINTSRC)(((ahd)->tags[(0x5b) >> 8])->read_1(((ahd)->bshs [(0x5b) >> 8]), ((0x5b) & 0xFF))); |
| 642 | if ((seqintsrc & CFG4DATA0x10) != 0) { |
| 643 | uint32_t datacnt; |
| 644 | uint32_t sgptr; |
| 645 | |
| 646 | /* |
| 647 | * Clear full residual flag. |
| 648 | */ |
| 649 | sgptr = ahd_inl_scbram(ahd, SCB_SGPTR0x1a4) & ~SG_FULL_RESID0x02; |
| 650 | ahd_outb(ahd, SCB_SGPTR, sgptr)(((ahd)->tags[(0x1a4) >> 8])->write_1(((ahd)-> bshs[(0x1a4) >> 8]), ((0x1a4) & 0xFF), (sgptr))); |
| 651 | |
| 652 | /* |
| 653 | * Load datacnt and address. |
| 654 | */ |
| 655 | datacnt = ahd_inl_scbram(ahd, SCB_DATACNT0x1a0); |
| 656 | if ((datacnt & AHD_DMA_LAST_SEG0x80000000) != 0) { |
| 657 | sgptr |= LAST_SEG0x02; |
| 658 | ahd_outb(ahd, SG_STATE, 0)(((ahd)->tags[(0xa6) >> 8])->write_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF), (0))); |
| 659 | } else |
| 660 | ahd_outb(ahd, SG_STATE, LOADING_NEEDED)(((ahd)->tags[(0xa6) >> 8])->write_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF), (0x02))); |
| 661 | ahd_outq(ahd, HADDR0x70, ahd_inq_scbram(ahd, SCB_DATAPTR0x198)); |
| 662 | ahd_outl(ahd, HCNT0x78, datacnt & AHD_SG_LEN_MASK0x00FFFFFF); |
| 663 | ahd_outb(ahd, SG_CACHE_PRE, sgptr)(((ahd)->tags[(0x1b) >> 8])->write_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF), (sgptr))); |
| 664 | ahd_outb(ahd, DFCNTRL, PRELOADEN|SCSIEN|HDMAEN)(((ahd)->tags[(0x19) >> 8])->write_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF), (0x80|0x20|0x08))); |
| 665 | |
| 666 | /* |
| 667 | * Initialize Residual Fields. |
| 668 | */ |
| 669 | ahd_outb(ahd, SCB_RESIDUAL_DATACNT+3, datacnt >> 24)(((ahd)->tags[(0x180 +3) >> 8])->write_1(((ahd)-> bshs[(0x180 +3) >> 8]), ((0x180 +3) & 0xFF), (datacnt >> 24))); |
| 670 | ahd_outl(ahd, SCB_RESIDUAL_SGPTR0x184, sgptr & SG_PTR_MASK0xFFFFFFF8); |
| 671 | |
| 672 | /* |
| 673 | * Mark the SCB as having a FIFO in use. |
| 674 | */ |
| 675 | ahd_outb(ahd, SCB_FIFO_USE_COUNT,(((ahd)->tags[(0x190) >> 8])->write_1(((ahd)-> bshs[(0x190) >> 8]), ((0x190) & 0xFF), (ahd_inb_scbram (ahd, 0x190) + 1))) |
| 676 | ahd_inb_scbram(ahd, SCB_FIFO_USE_COUNT) + 1)(((ahd)->tags[(0x190) >> 8])->write_1(((ahd)-> bshs[(0x190) >> 8]), ((0x190) & 0xFF), (ahd_inb_scbram (ahd, 0x190) + 1))); |
| 677 | |
| 678 | /* |
| 679 | * Install a "fake" handler for this FIFO. |
| 680 | */ |
| 681 | ahd_outw(ahd, LONGJMP_ADDR0xf8, 0); |
| 682 | |
| 683 | /* |
| 684 | * Notify the hardware that we have satisfied |
| 685 | * this sequencer interrupt. |
| 686 | */ |
| 687 | ahd_outb(ahd, CLRSEQINTSRC, CLRCFG4DATA)(((ahd)->tags[(0x5b) >> 8])->write_1(((ahd)->bshs [(0x5b) >> 8]), ((0x5b) & 0xFF), (0x10))); |
| 688 | } else if ((seqintsrc & SAVEPTRS0x20) != 0) { |
| 689 | uint32_t sgptr; |
| 690 | uint32_t resid; |
| 691 | |
| 692 | if ((ahd_inb(ahd, LONGJMP_ADDR+1)(((ahd)->tags[(0xf8 +1) >> 8])->read_1(((ahd)-> bshs[(0xf8 +1) >> 8]), ((0xf8 +1) & 0xFF)))&INVALID_ADDR0x80) != 0) { |
| 693 | /* |
| 694 | * Snapshot Save Pointers. All that |
| 695 | * is necessary to clear the snapshot |
| 696 | * is a CLRCHN. |
| 697 | */ |
| 698 | goto clrchn; |
| 699 | } |
| 700 | |
| 701 | /* |
| 702 | * Disable S/G fetch so the DMA engine |
| 703 | * is available to future users. |
| 704 | */ |
| 705 | if ((ahd_inb(ahd, SG_STATE)(((ahd)->tags[(0xa6) >> 8])->read_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF))) & FETCH_INPROG0x04) != 0) |
| 706 | ahd_outb(ahd, CCSGCTL, 0)(((ahd)->tags[(0xad) >> 8])->write_1(((ahd)->bshs [(0xad) >> 8]), ((0xad) & 0xFF), (0))); |
| 707 | ahd_outb(ahd, SG_STATE, 0)(((ahd)->tags[(0xa6) >> 8])->write_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF), (0))); |
| 708 | |
| 709 | /* |
| 710 | * Flush the data FIFO. Strictly only |
| 711 | * necessary for Rev A parts. |
| 712 | */ |
| 713 | ahd_outb(ahd, DFCNTRL, ahd_inb(ahd, DFCNTRL) | FIFOFLUSH)(((ahd)->tags[(0x19) >> 8])->write_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF), ((((ahd)->tags[ (0x19) >> 8])->read_1(((ahd)->bshs[(0x19) >> 8]), ((0x19) & 0xFF))) | 0x02))); |
| 714 | |
| 715 | /* |
| 716 | * Calculate residual. |
| 717 | */ |
| 718 | sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR0x184); |
| 719 | resid = ahd_inl(ahd, SHCNT0x68); |
| 720 | resid |= ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT0x180+3) << 24; |
| 721 | ahd_outl(ahd, SCB_RESIDUAL_DATACNT0x180, resid); |
| 722 | if ((ahd_inb(ahd, SG_CACHE_SHADOW)(((ahd)->tags[(0x1b) >> 8])->read_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF))) & LAST_SEG0x02) == 0) { |
| 723 | /* |
| 724 | * Must back up to the correct S/G element. |
| 725 | * Typically this just means resetting our |
| 726 | * low byte to the offset in the SG_CACHE, |
| 727 | * but if we wrapped, we have to correct |
| 728 | * the other bytes of the sgptr too. |
| 729 | */ |
| 730 | if ((ahd_inb(ahd, SG_CACHE_SHADOW)(((ahd)->tags[(0x1b) >> 8])->read_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF))) & 0x80) != 0 |
| 731 | && (sgptr & 0x80) == 0) |
| 732 | sgptr -= 0x100; |
| 733 | sgptr &= ~0xFF; |
| 734 | sgptr |= ahd_inb(ahd, SG_CACHE_SHADOW)(((ahd)->tags[(0x1b) >> 8])->read_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF))) |
| 735 | & SG_ADDR_MASK0xf8; |
| 736 | ahd_outl(ahd, SCB_RESIDUAL_SGPTR0x184, sgptr); |
| 737 | ahd_outb(ahd, SCB_RESIDUAL_DATACNT + 3, 0)(((ahd)->tags[(0x180 + 3) >> 8])->write_1(((ahd)-> bshs[(0x180 + 3) >> 8]), ((0x180 + 3) & 0xFF), (0)) ); |
| 738 | } else if ((resid & AHD_SG_LEN_MASK0x00FFFFFF) == 0) { |
| 739 | ahd_outb(ahd, SCB_RESIDUAL_SGPTR,(((ahd)->tags[(0x184) >> 8])->write_1(((ahd)-> bshs[(0x184) >> 8]), ((0x184) & 0xFF), (sgptr | 0x01 ))) |
| 740 | sgptr | SG_LIST_NULL)(((ahd)->tags[(0x184) >> 8])->write_1(((ahd)-> bshs[(0x184) >> 8]), ((0x184) & 0xFF), (sgptr | 0x01 ))); |
| 741 | } |
| 742 | /* |
| 743 | * Save Pointers. |
| 744 | */ |
| 745 | ahd_outq(ahd, SCB_DATAPTR0x198, ahd_inq(ahd, SHADDR0x60)); |
| 746 | ahd_outl(ahd, SCB_DATACNT0x1a0, resid); |
| 747 | ahd_outl(ahd, SCB_SGPTR0x1a4, sgptr); |
| 748 | ahd_outb(ahd, CLRSEQINTSRC, CLRSAVEPTRS)(((ahd)->tags[(0x5b) >> 8])->write_1(((ahd)->bshs [(0x5b) >> 8]), ((0x5b) & 0xFF), (0x20))); |
| 749 | ahd_outb(ahd, SEQIMODE,(((ahd)->tags[(0x5c) >> 8])->write_1(((ahd)->bshs [(0x5c) >> 8]), ((0x5c) & 0xFF), ((((ahd)->tags[ (0x5c) >> 8])->read_1(((ahd)->bshs[(0x5c) >> 8]), ((0x5c) & 0xFF))) | 0x20))) |
| 750 | ahd_inb(ahd, SEQIMODE) | ENSAVEPTRS)(((ahd)->tags[(0x5c) >> 8])->write_1(((ahd)->bshs [(0x5c) >> 8]), ((0x5c) & 0xFF), ((((ahd)->tags[ (0x5c) >> 8])->read_1(((ahd)->bshs[(0x5c) >> 8]), ((0x5c) & 0xFF))) | 0x20))); |
| 751 | /* |
| 752 | * If the data is to the SCSI bus, we are |
| 753 | * done, otherwise wait for FIFOEMP. |
| 754 | */ |
| 755 | if ((ahd_inb(ahd, DFCNTRL)(((ahd)->tags[(0x19) >> 8])->read_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF))) & DIRECTION0x04) != 0) |
| 756 | goto clrchn; |
| 757 | } else if ((ahd_inb(ahd, SG_STATE)(((ahd)->tags[(0xa6) >> 8])->read_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF))) & LOADING_NEEDED0x02) != 0) { |
| 758 | uint32_t sgptr; |
| 759 | uint64_t data_addr; |
| 760 | uint32_t data_len; |
| 761 | u_int dfcntrl; |
| 762 | |
| 763 | /* |
| 764 | * Disable S/G fetch so the DMA engine |
| 765 | * is available to future users. We won't |
| 766 | * be using the DMA engine to load segments. |
| 767 | */ |
| 768 | if ((ahd_inb(ahd, SG_STATE)(((ahd)->tags[(0xa6) >> 8])->read_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF))) & FETCH_INPROG0x04) != 0) { |
| 769 | ahd_outb(ahd, CCSGCTL, 0)(((ahd)->tags[(0xad) >> 8])->write_1(((ahd)->bshs [(0xad) >> 8]), ((0xad) & 0xFF), (0))); |
| 770 | ahd_outb(ahd, SG_STATE, LOADING_NEEDED)(((ahd)->tags[(0xa6) >> 8])->write_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF), (0x02))); |
| 771 | } |
| 772 | |
| 773 | /* |
| 774 | * Wait for the DMA engine to notice that the |
| 775 | * host transfer is enabled and that there is |
| 776 | * space in the S/G FIFO for new segments before |
| 777 | * loading more segments. |
| 778 | */ |
| 779 | if ((ahd_inb(ahd, DFSTATUS)(((ahd)->tags[(0x1a) >> 8])->read_1(((ahd)->bshs [(0x1a) >> 8]), ((0x1a) & 0xFF))) & PRELOAD_AVAIL0x80) != 0 |
| 780 | && (ahd_inb(ahd, DFCNTRL)(((ahd)->tags[(0x19) >> 8])->read_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF))) & HDMAENACK0x08) != 0) { |
| 781 | |
| 782 | /* |
| 783 | * Determine the offset of the next S/G |
| 784 | * element to load. |
| 785 | */ |
| 786 | sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR0x184); |
| 787 | sgptr &= SG_PTR_MASK0xFFFFFFF8; |
| 788 | if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) { |
| 789 | struct ahd_dma64_seg *sg; |
| 790 | |
| 791 | sg = ahd_sg_bus_to_virt(ahd, scb, sgptr); |
| 792 | data_addr = sg->addr; |
| 793 | data_len = sg->len; |
| 794 | sgptr += sizeof(*sg); |
| 795 | } else { |
| 796 | struct ahd_dma_seg *sg; |
| 797 | |
| 798 | sg = ahd_sg_bus_to_virt(ahd, scb, sgptr); |
| 799 | data_addr = sg->len & AHD_SG_HIGH_ADDR_MASK0x7F000000; |
| 800 | data_addr <<= 8; |
| 801 | data_addr |= sg->addr; |
| 802 | data_len = sg->len; |
| 803 | sgptr += sizeof(*sg); |
| 804 | } |
| 805 | |
| 806 | /* |
| 807 | * Update residual information. |
| 808 | */ |
| 809 | ahd_outb(ahd, SCB_RESIDUAL_DATACNT+3, data_len >> 24)(((ahd)->tags[(0x180 +3) >> 8])->write_1(((ahd)-> bshs[(0x180 +3) >> 8]), ((0x180 +3) & 0xFF), (data_len >> 24))); |
| 810 | ahd_outl(ahd, SCB_RESIDUAL_SGPTR0x184, sgptr); |
| 811 | |
| 812 | /* |
| 813 | * Load the S/G. |
| 814 | */ |
| 815 | if (data_len & AHD_DMA_LAST_SEG0x80000000) { |
| 816 | sgptr |= LAST_SEG0x02; |
| 817 | ahd_outb(ahd, SG_STATE, 0)(((ahd)->tags[(0xa6) >> 8])->write_1(((ahd)->bshs [(0xa6) >> 8]), ((0xa6) & 0xFF), (0))); |
| 818 | } |
| 819 | ahd_outq(ahd, HADDR0x70, data_addr); |
| 820 | ahd_outl(ahd, HCNT0x78, data_len & AHD_SG_LEN_MASK0x00FFFFFF); |
| 821 | ahd_outb(ahd, SG_CACHE_PRE, sgptr & 0xFF)(((ahd)->tags[(0x1b) >> 8])->write_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF), (sgptr & 0xFF) )); |
| 822 | |
| 823 | /* |
| 824 | * Advertise the segment to the hardware. |
| 825 | */ |
| 826 | dfcntrl = ahd_inb(ahd, DFCNTRL)(((ahd)->tags[(0x19) >> 8])->read_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF)))|PRELOADEN0x80|HDMAEN0x08; |
| 827 | if ((ahd->features & AHD_NEW_DFCNTRL_OPTS) != 0) { |
| 828 | /* |
| 829 | * Use SCSIENWRDIS so that SCSIEN |
| 830 | * is never modified by this |
| 831 | * operation. |
| 832 | */ |
| 833 | dfcntrl |= SCSIENWRDIS0x40; |
| 834 | } |
| 835 | ahd_outb(ahd, DFCNTRL, dfcntrl)(((ahd)->tags[(0x19) >> 8])->write_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF), (dfcntrl))); |
| 836 | } |
| 837 | } else if ((ahd_inb(ahd, SG_CACHE_SHADOW)(((ahd)->tags[(0x1b) >> 8])->read_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF))) & LAST_SEG_DONE0x01) != 0) { |
| 838 | |
| 839 | /* |
| 840 | * Transfer completed to the end of SG list |
| 841 | * and has flushed to the host. |
| 842 | */ |
| 843 | ahd_outb(ahd, SCB_SGPTR,(((ahd)->tags[(0x1a4) >> 8])->write_1(((ahd)-> bshs[(0x1a4) >> 8]), ((0x1a4) & 0xFF), (ahd_inb_scbram (ahd, 0x1a4) | 0x01))) |
| 844 | ahd_inb_scbram(ahd, SCB_SGPTR) | SG_LIST_NULL)(((ahd)->tags[(0x1a4) >> 8])->write_1(((ahd)-> bshs[(0x1a4) >> 8]), ((0x1a4) & 0xFF), (ahd_inb_scbram (ahd, 0x1a4) | 0x01))); |
| 845 | goto clrchn; |
| 846 | } else if ((ahd_inb(ahd, DFSTATUS)(((ahd)->tags[(0x1a) >> 8])->read_1(((ahd)->bshs [(0x1a) >> 8]), ((0x1a) & 0xFF))) & FIFOEMP0x01) != 0) { |
| 847 | clrchn: |
| 848 | /* |
| 849 | * Clear any handler for this FIFO, decrement |
| 850 | * the FIFO use count for the SCB, and release |
| 851 | * the FIFO. |
| 852 | */ |
| 853 | ahd_outb(ahd, LONGJMP_ADDR + 1, INVALID_ADDR)(((ahd)->tags[(0xf8 + 1) >> 8])->write_1(((ahd)-> bshs[(0xf8 + 1) >> 8]), ((0xf8 + 1) & 0xFF), (0x80) )); |
| 854 | ahd_outb(ahd, SCB_FIFO_USE_COUNT,(((ahd)->tags[(0x190) >> 8])->write_1(((ahd)-> bshs[(0x190) >> 8]), ((0x190) & 0xFF), (ahd_inb_scbram (ahd, 0x190) - 1))) |
| 855 | ahd_inb_scbram(ahd, SCB_FIFO_USE_COUNT) - 1)(((ahd)->tags[(0x190) >> 8])->write_1(((ahd)-> bshs[(0x190) >> 8]), ((0x190) & 0xFF), (ahd_inb_scbram (ahd, 0x190) - 1))); |
| 856 | ahd_outb(ahd, DFFSXFRCTL, CLRCHN)(((ahd)->tags[(0x5a) >> 8])->write_1(((ahd)->bshs [(0x5a) >> 8]), ((0x5a) & 0xFF), (0x02))); |
| 857 | } |
| 858 | } |
| 859 | |
| 860 | /* |
| 861 | * Look for entries in the QoutFIFO that have completed. |
| 862 | * The valid_tag completion field indicates the validity |
| 863 | * of the entry - the valid value toggles each time through |
| 864 | * the queue. We use the sg_status field in the completion |
| 865 | * entry to avoid referencing the hscb if the completion |
| 866 | * occurred with no errors and no residual. sg_status is |
| 867 | * a copy of the first byte (little endian) of the sgptr |
| 868 | * hscb field. |
| 869 | */ |
| 870 | void |
| 871 | ahd_run_qoutfifo(struct ahd_softc *ahd) |
| 872 | { |
| 873 | struct ahd_completion *completion; |
| 874 | struct scb *scb; |
| 875 | u_int scb_index; |
| 876 | |
| 877 | if ((ahd->flags & AHD_RUNNING_QOUTFIFO) != 0) |
| 878 | panic("ahd_run_qoutfifo recursion"); |
| 879 | ahd->flags |= AHD_RUNNING_QOUTFIFO; |
| 880 | ahd_sync_qoutfifo(ahd, BUS_DMASYNC_POSTREAD0x02); |
| 881 | for (;;) { |
| 882 | completion = &ahd->qoutfifo[ahd->qoutfifonext]; |
| 883 | |
| 884 | if (completion->valid_tag != ahd->qoutfifonext_valid_tag) |
| 885 | break; |
| 886 | |
| 887 | scb_index = aic_le16toh(completion->tag)((__uint16_t)(completion->tag)); |
| 888 | scb = ahd_lookup_scb(ahd, scb_index); |
| 889 | if (scb == NULL((void *)0)) { |
| 890 | printf("%s: WARNING no command for scb %d " |
| 891 | "(cmdcmplt)\nQOUTPOS = %d\n", |
| 892 | ahd_name(ahd), scb_index, |
| 893 | ahd->qoutfifonext); |
| 894 | ahd_dump_card_state(ahd); |
| 895 | } else if ((completion->sg_status & SG_STATUS_VALID0x04) != 0) { |
| 896 | ahd_handle_scb_status(ahd, scb); |
| 897 | } else { |
| 898 | ahd_done(ahd, scb); |
| 899 | } |
| 900 | |
| 901 | ahd->qoutfifonext = (ahd->qoutfifonext+1) & (AHD_QOUT_SIZE512-1); |
| 902 | if (ahd->qoutfifonext == 0) |
| 903 | ahd->qoutfifonext_valid_tag ^= QOUTFIFO_ENTRY_VALID0x80; |
| 904 | } |
| 905 | ahd->flags &= ~AHD_RUNNING_QOUTFIFO; |
| 906 | } |
| 907 | |
| 908 | /************************* Interrupt Handling *********************************/ |
| 909 | void |
| 910 | ahd_handle_hwerrint(struct ahd_softc *ahd) |
| 911 | { |
| 912 | /* |
| 913 | * Some catastrophic hardware error has occurred. |
| 914 | * Print it for the user and disable the controller. |
| 915 | */ |
| 916 | int i; |
| 917 | int error; |
| 918 | |
| 919 | error = ahd_inb(ahd, ERROR)(((ahd)->tags[(0x04) >> 8])->read_1(((ahd)->bshs [(0x04) >> 8]), ((0x04) & 0xFF))); |
| 920 | for (i = 0; i < num_errors; i++) { |
| 921 | if ((error & ahd_hard_errors[i].errno) != 0) |
| 922 | printf("%s: hwerrint, %s\n", |
| 923 | ahd_name(ahd), ahd_hard_errors[i].errmesg); |
| 924 | } |
| 925 | |
| 926 | ahd_dump_card_state(ahd); |
| 927 | panic("BRKADRINT"); |
| 928 | |
| 929 | /* Tell everyone that this HBA is no longer available */ |
| 930 | ahd_abort_scbs(ahd, CAM_TARGET_WILDCARD((u_int)~0), ALL_CHANNELS'\0', |
| 931 | CAM_LUN_WILDCARD-1, SCB_LIST_NULL0xFF00, ROLE_UNKNOWN, |
| 932 | CAM_NO_HBA); |
| 933 | |
| 934 | /* Tell the system that this controller has gone away. */ |
| 935 | ahd_free(ahd); |
| 936 | } |
| 937 | |
| 938 | void |
| 939 | ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat) |
| 940 | { |
| 941 | u_int seqintcode; |
| 942 | |
| 943 | /* |
| 944 | * Save the sequencer interrupt code and clear the SEQINT |
| 945 | * bit. We will unpause the sequencer, if appropriate, |
| 946 | * after servicing the request. |
| 947 | */ |
| 948 | seqintcode = ahd_inb(ahd, SEQINTCODE)(((ahd)->tags[(0x02) >> 8])->read_1(((ahd)->bshs [(0x02) >> 8]), ((0x02) & 0xFF))); |
| 949 | ahd_outb(ahd, CLRINT, CLRSEQINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x04))); |
| 950 | if ((ahd->bugs & AHD_INTCOLLISION_BUG) != 0) { |
| 951 | /* |
| 952 | * Unpause the sequencer and let it clear |
| 953 | * SEQINT by writing NO_SEQINT to it. This |
| 954 | * will cause the sequencer to be paused again, |
| 955 | * which is the expected state of this routine. |
| 956 | */ |
| 957 | ahd_unpause(ahd); |
| 958 | while (!ahd_is_paused(ahd)) |
| 959 | ; |
| 960 | ahd_outb(ahd, CLRINT, CLRSEQINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x04))); |
| 961 | } |
| 962 | ahd_update_modes(ahd); |
| 963 | #ifdef AHD_DEBUG |
| 964 | if ((ahd_debug & AHD_SHOW_MISC) != 0) |
| 965 | printf("%s: Handle Seqint Called for code %d\n", |
| 966 | ahd_name(ahd), seqintcode); |
| 967 | #endif |
| 968 | switch (seqintcode) { |
| 969 | case ENTERING_NONPACK0x12: |
| 970 | { |
| 971 | struct scb *scb; |
| 972 | u_int scbid; |
| 973 | |
| 974 | AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 975); |
| 975 | ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK))ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 975);; |
| 976 | scbid = ahd_get_scbptr(ahd); |
| 977 | scb = ahd_lookup_scb(ahd, scbid); |
| 978 | if (scb == NULL((void *)0)) { |
| 979 | /* |
| 980 | * Somehow need to know if this |
| 981 | * is from a selection or reselection. |
| 982 | * From that, we can determine target |
| 983 | * ID so we at least have an I_T nexus. |
| 984 | */ |
| 985 | } else { |
| 986 | ahd_outb(ahd, SAVED_SCSIID, scb->hscb->scsiid)(((ahd)->tags[(0x13a) >> 8])->write_1(((ahd)-> bshs[(0x13a) >> 8]), ((0x13a) & 0xFF), (scb->hscb ->scsiid))); |
| 987 | ahd_outb(ahd, SAVED_LUN, scb->hscb->lun)(((ahd)->tags[(0x13b) >> 8])->write_1(((ahd)-> bshs[(0x13b) >> 8]), ((0x13b) & 0xFF), (scb->hscb ->lun))); |
| 988 | ahd_outb(ahd, SEQ_FLAGS, 0x0)(((ahd)->tags[(0x139) >> 8])->write_1(((ahd)-> bshs[(0x139) >> 8]), ((0x139) & 0xFF), (0x0))); |
| 989 | } |
| 990 | if ((ahd_inb(ahd, LQISTAT2)(((ahd)->tags[(0x52) >> 8])->read_1(((ahd)->bshs [(0x52) >> 8]), ((0x52) & 0xFF))) & LQIPHASE_OUTPKT0x40) != 0 |
| 991 | && (ahd_inb(ahd, SCSISIGO)(((ahd)->tags[(0x40) >> 8])->read_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF))) & ATNO0x10) != 0) { |
| 992 | /* |
| 993 | * Phase change after read stream with |
| 994 | * CRC error with P0 asserted on last |
| 995 | * packet. |
| 996 | */ |
| 997 | #ifdef AHD_DEBUG |
| 998 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) |
| 999 | printf("%s: Assuming LQIPHASE_NLQ with " |
| 1000 | "P0 assertion\n", ahd_name(ahd)); |
| 1001 | #endif |
| 1002 | } |
| 1003 | #ifdef AHD_DEBUG |
| 1004 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) |
| 1005 | printf("%s: Entering NONPACK\n", ahd_name(ahd)); |
| 1006 | #endif |
| 1007 | break; |
| 1008 | } |
| 1009 | case INVALID_SEQINT0x0e: |
| 1010 | printf("%s: Invalid Sequencer interrupt occurred.\n", |
| 1011 | ahd_name(ahd)); |
| 1012 | ahd_dump_card_state(ahd); |
| 1013 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1014 | break; |
| 1015 | case STATUS_OVERRUN0x10: |
| 1016 | { |
| 1017 | struct scb *scb; |
| 1018 | u_int scbid; |
| 1019 | |
| 1020 | scbid = ahd_get_scbptr(ahd); |
| 1021 | scb = ahd_lookup_scb(ahd, scbid); |
| 1022 | if (scb != NULL((void *)0)) |
| 1023 | ahd_print_path(ahd, scb); |
| 1024 | else |
| 1025 | printf("%s: ", ahd_name(ahd)); |
| 1026 | printf("SCB %d Packetized Status Overrun", scbid); |
| 1027 | ahd_dump_card_state(ahd); |
| 1028 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1029 | break; |
| 1030 | } |
| 1031 | case CFG4ISTAT_INTR0x0f: |
| 1032 | { |
| 1033 | struct scb *scb; |
| 1034 | u_int scbid; |
| 1035 | |
| 1036 | scbid = ahd_get_scbptr(ahd); |
| 1037 | scb = ahd_lookup_scb(ahd, scbid); |
| 1038 | if (scb == NULL((void *)0)) { |
| 1039 | ahd_dump_card_state(ahd); |
| 1040 | printf("CFG4ISTAT: Free SCB %d referenced", scbid); |
| 1041 | panic("For safety"); |
| 1042 | } |
| 1043 | ahd_outq(ahd, HADDR0x70, scb->sense_busaddr); |
| 1044 | ahd_outw(ahd, HCNT0x78, AHD_SENSE_BUFSIZE0x100); |
| 1045 | ahd_outb(ahd, HCNT + 2, 0)(((ahd)->tags[(0x78 + 2) >> 8])->write_1(((ahd)-> bshs[(0x78 + 2) >> 8]), ((0x78 + 2) & 0xFF), (0))); |
| 1046 | ahd_outb(ahd, SG_CACHE_PRE, SG_LAST_SEG)(((ahd)->tags[(0x1b) >> 8])->write_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF), (0x80))); |
| 1047 | ahd_outb(ahd, DFCNTRL, PRELOADEN|SCSIEN|HDMAEN)(((ahd)->tags[(0x19) >> 8])->write_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF), (0x80|0x20|0x08))); |
| 1048 | break; |
| 1049 | } |
| 1050 | case ILLEGAL_PHASE0x0d: |
| 1051 | { |
| 1052 | u_int bus_phase; |
| 1053 | |
| 1054 | bus_phase = ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & PHASE_MASK0xe0; |
| 1055 | printf("%s: ILLEGAL_PHASE 0x%x\n", |
| 1056 | ahd_name(ahd), bus_phase); |
| 1057 | |
| 1058 | switch (bus_phase) { |
| 1059 | case P_DATAOUT0x00: |
| 1060 | case P_DATAIN0x40: |
| 1061 | case P_DATAOUT_DT0x20: |
| 1062 | case P_DATAIN_DT0x60: |
| 1063 | case P_MESGOUT0xa0: |
| 1064 | case P_STATUS0xc0: |
| 1065 | case P_MESGIN0xe0: |
| 1066 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1067 | printf("%s: Issued Bus Reset.\n", ahd_name(ahd)); |
| 1068 | break; |
| 1069 | case P_COMMAND0x80: |
| 1070 | { |
| 1071 | struct ahd_devinfo devinfo; |
| 1072 | struct scb *scb; |
| 1073 | struct ahd_initiator_tinfo *targ_info; |
| 1074 | struct ahd_tmode_tstate *tstate; |
| 1075 | u_int scbid; |
| 1076 | |
| 1077 | /* |
| 1078 | * If a target takes us into the command phase |
| 1079 | * assume that it has been externally reset and |
| 1080 | * has thus lost our previous packetized negotiation |
| 1081 | * agreement. Since we have not sent an identify |
| 1082 | * message and may not have fully qualified the |
| 1083 | * connection, we change our command to TUR, assert |
| 1084 | * ATN and ABORT the task when we go to message in |
| 1085 | * phase. The OSM will see the REQUEUE_REQUEST |
| 1086 | * status and retry the command. |
| 1087 | */ |
| 1088 | scbid = ahd_get_scbptr(ahd); |
| 1089 | scb = ahd_lookup_scb(ahd, scbid); |
| 1090 | if (scb == NULL((void *)0)) { |
| 1091 | printf("Invalid phase with no valid SCB. " |
| 1092 | "Resetting bus.\n"); |
| 1093 | ahd_reset_channel(ahd, 'A', |
| 1094 | /*Initiate Reset*/TRUE1); |
| 1095 | break; |
| 1096 | } |
| 1097 | ahd_compile_devinfo(&devinfo, SCB_GET_OUR_ID(scb)(((scb)->hscb->scsiid) & 0x0f), |
| 1098 | SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 1099 | SCB_GET_LUN(scb)((scb)->hscb->lun), |
| 1100 | SCB_GET_CHANNEL(ahd, scb)('A'), |
| 1101 | ROLE_INITIATOR); |
| 1102 | targ_info = ahd_fetch_transinfo(ahd, |
| 1103 | devinfo.channel, |
| 1104 | devinfo.our_scsiid, |
| 1105 | devinfo.target, |
| 1106 | &tstate); |
| 1107 | ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT0x00, |
| 1108 | AHD_TRANS_ACTIVE0x03, /*paused*/TRUE1); |
| 1109 | ahd_set_syncrate(ahd, &devinfo, /*period*/0, |
| 1110 | /*offset*/0, /*ppr_options*/0, |
| 1111 | AHD_TRANS_ACTIVE0x03, /*paused*/TRUE1); |
| 1112 | ahd_outb(ahd, SCB_CDB_STORE, 0)(((ahd)->tags[(0x180) >> 8])->write_1(((ahd)-> bshs[(0x180) >> 8]), ((0x180) & 0xFF), (0))); |
| 1113 | ahd_outb(ahd, SCB_CDB_STORE+1, 0)(((ahd)->tags[(0x180 +1) >> 8])->write_1(((ahd)-> bshs[(0x180 +1) >> 8]), ((0x180 +1) & 0xFF), (0))); |
| 1114 | ahd_outb(ahd, SCB_CDB_STORE+2, 0)(((ahd)->tags[(0x180 +2) >> 8])->write_1(((ahd)-> bshs[(0x180 +2) >> 8]), ((0x180 +2) & 0xFF), (0))); |
| 1115 | ahd_outb(ahd, SCB_CDB_STORE+3, 0)(((ahd)->tags[(0x180 +3) >> 8])->write_1(((ahd)-> bshs[(0x180 +3) >> 8]), ((0x180 +3) & 0xFF), (0))); |
| 1116 | ahd_outb(ahd, SCB_CDB_STORE+4, 0)(((ahd)->tags[(0x180 +4) >> 8])->write_1(((ahd)-> bshs[(0x180 +4) >> 8]), ((0x180 +4) & 0xFF), (0))); |
| 1117 | ahd_outb(ahd, SCB_CDB_STORE+5, 0)(((ahd)->tags[(0x180 +5) >> 8])->write_1(((ahd)-> bshs[(0x180 +5) >> 8]), ((0x180 +5) & 0xFF), (0))); |
| 1118 | ahd_outb(ahd, SCB_CDB_LEN, 6)(((ahd)->tags[(0x196) >> 8])->write_1(((ahd)-> bshs[(0x196) >> 8]), ((0x196) & 0xFF), (6))); |
| 1119 | scb->hscb->control &= ~(TAG_ENB0x20|SCB_TAG_TYPE0x03); |
| 1120 | scb->hscb->control |= MK_MESSAGE0x10; |
| 1121 | ahd_outb(ahd, SCB_CONTROL, scb->hscb->control)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (scb->hscb ->control))); |
| 1122 | ahd_outb(ahd, MSG_OUT, HOST_MSG)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0xff))); |
| 1123 | ahd_outb(ahd, SAVED_SCSIID, scb->hscb->scsiid)(((ahd)->tags[(0x13a) >> 8])->write_1(((ahd)-> bshs[(0x13a) >> 8]), ((0x13a) & 0xFF), (scb->hscb ->scsiid))); |
| 1124 | /* |
| 1125 | * The lun is 0, regardless of the SCB's lun |
| 1126 | * as we have not sent an identify message. |
| 1127 | */ |
| 1128 | ahd_outb(ahd, SAVED_LUN, 0)(((ahd)->tags[(0x13b) >> 8])->write_1(((ahd)-> bshs[(0x13b) >> 8]), ((0x13b) & 0xFF), (0))); |
| 1129 | ahd_outb(ahd, SEQ_FLAGS, 0)(((ahd)->tags[(0x139) >> 8])->write_1(((ahd)-> bshs[(0x139) >> 8]), ((0x139) & 0xFF), (0))); |
| 1130 | ahd_assert_atn(ahd); |
| 1131 | scb->flags &= ~SCB_PACKETIZED; |
| 1132 | scb->flags |= SCB_ABORT|SCB_CMDPHASE_ABORT; |
| 1133 | ahd_freeze_devq(ahd, scb); |
| 1134 | aic_set_transaction_status(scb, CAM_REQUEUE_REQ)(scb)->xs->error = (CAM_REQUEUE_REQ); |
| 1135 | aic_freeze_scb(scb); |
| 1136 | |
| 1137 | /* |
| 1138 | * Allow the sequencer to continue with |
| 1139 | * non-pack processing. |
| 1140 | */ |
| 1141 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 1142 | ahd_outb(ahd, CLRLQOINT1, CLRLQOPHACHGINPKT)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0x01))); |
| 1143 | if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0) { |
| 1144 | ahd_outb(ahd, CLRLQOINT1, 0)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0))); |
| 1145 | } |
| 1146 | #ifdef AHD_DEBUG |
| 1147 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) { |
| 1148 | ahd_print_path(ahd, scb); |
| 1149 | printf("Unexpected command phase from " |
| 1150 | "packetized target\n"); |
| 1151 | } |
| 1152 | #endif |
| 1153 | break; |
| 1154 | } |
| 1155 | } |
| 1156 | break; |
| 1157 | } |
| 1158 | case CFG4OVERRUN0x11: |
| 1159 | { |
| 1160 | struct scb *scb; |
| 1161 | u_int scb_index; |
| 1162 | |
| 1163 | #ifdef AHD_DEBUG |
| 1164 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) { |
| 1165 | printf("%s: CFG4OVERRUN mode = %x\n", ahd_name(ahd), |
| 1166 | ahd_inb(ahd, MODE_PTR)(((ahd)->tags[(0x00) >> 8])->read_1(((ahd)->bshs [(0x00) >> 8]), ((0x00) & 0xFF)))); |
| 1167 | } |
| 1168 | #endif |
| 1169 | scb_index = ahd_get_scbptr(ahd); |
| 1170 | scb = ahd_lookup_scb(ahd, scb_index); |
| 1171 | if (scb == NULL((void *)0)) { |
| 1172 | /* |
| 1173 | * Attempt to transfer to an SCB that is |
| 1174 | * not outstanding. |
| 1175 | */ |
| 1176 | ahd_assert_atn(ahd); |
| 1177 | ahd_outb(ahd, MSG_OUT, HOST_MSG)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0xff))); |
| 1178 | ahd->msgout_buf[0] = MSG_ABORT_TASK0x0d; |
| 1179 | ahd->msgout_len = 1; |
| 1180 | ahd->msgout_index = 0; |
| 1181 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 1182 | /* |
| 1183 | * Clear status received flag to prevent any |
| 1184 | * attempt to complete this bogus SCB. |
| 1185 | */ |
| 1186 | ahd_outb(ahd, SCB_CONTROL,(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x08))) |
| 1187 | ahd_inb_scbram(ahd, SCB_CONTROL)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x08))) |
| 1188 | & ~STATUS_RCVD)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x08))); |
| 1189 | } |
| 1190 | break; |
| 1191 | } |
| 1192 | case DUMP_CARD_STATE0x0c: |
| 1193 | { |
| 1194 | ahd_dump_card_state(ahd); |
| 1195 | break; |
| 1196 | } |
| 1197 | case PDATA_REINIT0x06: |
| 1198 | { |
| 1199 | #ifdef AHD_DEBUG |
| 1200 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) { |
| 1201 | printf("%s: PDATA_REINIT - DFCNTRL = 0x%x " |
| 1202 | "SG_CACHE_SHADOW = 0x%x\n", |
| 1203 | ahd_name(ahd), ahd_inb(ahd, DFCNTRL)(((ahd)->tags[(0x19) >> 8])->read_1(((ahd)->bshs [(0x19) >> 8]), ((0x19) & 0xFF))), |
| 1204 | ahd_inb(ahd, SG_CACHE_SHADOW)(((ahd)->tags[(0x1b) >> 8])->read_1(((ahd)->bshs [(0x1b) >> 8]), ((0x1b) & 0xFF)))); |
| 1205 | } |
| 1206 | #endif |
| 1207 | ahd_reinitialize_dataptrs(ahd); |
| 1208 | break; |
| 1209 | } |
| 1210 | case HOST_MSG_LOOP0x07: |
| 1211 | { |
| 1212 | struct ahd_devinfo devinfo; |
| 1213 | |
| 1214 | /* |
| 1215 | * The sequencer has encountered a message phase |
| 1216 | * that requires host assistance for completion. |
| 1217 | * While handling the message phase(s), we will be |
| 1218 | * notified by the sequencer after each byte is |
| 1219 | * transferred so we can track bus phase changes. |
| 1220 | * |
| 1221 | * If this is the first time we've seen a HOST_MSG_LOOP |
| 1222 | * interrupt, initialize the state of the host message |
| 1223 | * loop. |
| 1224 | */ |
| 1225 | ahd_fetch_devinfo(ahd, &devinfo); |
| 1226 | if (ahd->msg_type == MSG_TYPE_NONE) { |
| 1227 | struct scb *scb; |
| 1228 | u_int scb_index; |
| 1229 | u_int bus_phase; |
| 1230 | |
| 1231 | bus_phase = ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & PHASE_MASK0xe0; |
| 1232 | if (bus_phase != P_MESGIN0xe0 |
| 1233 | && bus_phase != P_MESGOUT0xa0) { |
| 1234 | printf("ahd_intr: HOST_MSG_LOOP bad " |
| 1235 | "phase 0x%x\n", bus_phase); |
| 1236 | /* |
| 1237 | * Probably transitioned to bus free before |
| 1238 | * we got here. Just punt the message. |
| 1239 | */ |
| 1240 | ahd_dump_card_state(ahd); |
| 1241 | ahd_clear_intstat(ahd); |
| 1242 | ahd_restart(ahd); |
| 1243 | return; |
| 1244 | } |
| 1245 | |
| 1246 | scb_index = ahd_get_scbptr(ahd); |
| 1247 | scb = ahd_lookup_scb(ahd, scb_index); |
| 1248 | if (devinfo.role == ROLE_INITIATOR) { |
| 1249 | if (bus_phase == P_MESGOUT0xa0) |
| 1250 | ahd_setup_initiator_msgout(ahd, |
| 1251 | &devinfo, |
| 1252 | scb); |
| 1253 | else { |
| 1254 | ahd->msg_type = |
| 1255 | MSG_TYPE_INITIATOR_MSGIN; |
| 1256 | ahd->msgin_index = 0; |
| 1257 | } |
| 1258 | } |
| 1259 | #if AHD_TARGET_MODE |
| 1260 | else { |
| 1261 | if (bus_phase == P_MESGOUT0xa0) { |
| 1262 | ahd->msg_type = |
| 1263 | MSG_TYPE_TARGET_MSGOUT; |
| 1264 | ahd->msgin_index = 0; |
| 1265 | } |
| 1266 | else |
| 1267 | ahd_setup_target_msgin(ahd, |
| 1268 | &devinfo, |
| 1269 | scb); |
| 1270 | } |
| 1271 | #endif |
| 1272 | } |
| 1273 | |
| 1274 | ahd_handle_message_phase(ahd); |
| 1275 | break; |
| 1276 | } |
| 1277 | case NO_MATCH0x04: |
| 1278 | { |
| 1279 | /* Ensure we don't leave the selection hardware on */ |
| 1280 | AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK)ahd_assert_modes(ahd, (0x01 << (AHD_MODE_SCSI)), (0x01 << (AHD_MODE_SCSI)), "/usr/src/sys/dev/ic/aic79xx.c", 1280);; |
| 1281 | ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), ((((ahd)->tags[ (0x3a) >> 8])->read_1(((ahd)->bshs[(0x3a) >> 8]), ((0x3a) & 0xFF))) & ~0x40))); |
| 1282 | |
| 1283 | printf("%s:%c:%d: no active SCB for reconnecting " |
| 1284 | "target - issuing BUS DEVICE RESET\n", |
| 1285 | ahd_name(ahd), 'A', ahd_inb(ahd, SELID)(((ahd)->tags[(0x49) >> 8])->read_1(((ahd)->bshs [(0x49) >> 8]), ((0x49) & 0xFF))) >> 4); |
| 1286 | printf("SAVED_SCSIID == 0x%x, SAVED_LUN == 0x%x, " |
| 1287 | "REG0 == 0x%x ACCUM = 0x%x\n", |
| 1288 | ahd_inb(ahd, SAVED_SCSIID)(((ahd)->tags[(0x13a) >> 8])->read_1(((ahd)->bshs [(0x13a) >> 8]), ((0x13a) & 0xFF))), ahd_inb(ahd, SAVED_LUN)(((ahd)->tags[(0x13b) >> 8])->read_1(((ahd)->bshs [(0x13b) >> 8]), ((0x13b) & 0xFF))), |
| 1289 | ahd_inw(ahd, REG00xa0), ahd_inb(ahd, ACCUM)(((ahd)->tags[(0xe0) >> 8])->read_1(((ahd)->bshs [(0xe0) >> 8]), ((0xe0) & 0xFF)))); |
| 1290 | printf("SEQ_FLAGS == 0x%x, SCBPTR == 0x%x, BTT == 0x%x, " |
| 1291 | "SINDEX == 0x%x\n", |
| 1292 | ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))), ahd_get_scbptr(ahd), |
| 1293 | ahd_find_busy_tcl(ahd, |
| 1294 | BUILD_TCL(ahd_inb(ahd, SAVED_SCSIID),(((((ahd)->tags[(0x13b) >> 8])->read_1(((ahd)-> bshs[(0x13b) >> 8]), ((0x13b) & 0xFF)))) | ((((((ahd )->tags[(0x13a) >> 8])->read_1(((ahd)->bshs[(0x13a ) >> 8]), ((0x13a) & 0xFF)))) & 0xf0) << 4 )) |
| 1295 | ahd_inb(ahd, SAVED_LUN))(((((ahd)->tags[(0x13b) >> 8])->read_1(((ahd)-> bshs[(0x13b) >> 8]), ((0x13b) & 0xFF)))) | ((((((ahd )->tags[(0x13a) >> 8])->read_1(((ahd)->bshs[(0x13a ) >> 8]), ((0x13a) & 0xFF)))) & 0xf0) << 4 ))), |
| 1296 | ahd_inw(ahd, SINDEX0xe2)); |
| 1297 | printf("SELID == 0x%x, SCB_SCSIID == 0x%x, SCB_LUN == 0x%x, " |
| 1298 | "SCB_CONTROL == 0x%x\n", |
| 1299 | ahd_inb(ahd, SELID)(((ahd)->tags[(0x49) >> 8])->read_1(((ahd)->bshs [(0x49) >> 8]), ((0x49) & 0xFF))), ahd_inb_scbram(ahd, SCB_SCSIID0x193), |
| 1300 | ahd_inb_scbram(ahd, SCB_LUN0x194), |
| 1301 | ahd_inb_scbram(ahd, SCB_CONTROL0x192)); |
| 1302 | printf("SCSIBUS[0] == 0x%x, SCSISIGI == 0x%x\n", |
| 1303 | ahd_inb(ahd, SCSIBUS)(((ahd)->tags[(0x46) >> 8])->read_1(((ahd)->bshs [(0x46) >> 8]), ((0x46) & 0xFF))), ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF)))); |
| 1304 | printf("SXFRCTL0 == 0x%x\n", ahd_inb(ahd, SXFRCTL0)(((ahd)->tags[(0x3c) >> 8])->read_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF)))); |
| 1305 | printf("SEQCTL0 == 0x%x\n", ahd_inb(ahd, SEQCTL0)(((ahd)->tags[(0xd6) >> 8])->read_1(((ahd)->bshs [(0xd6) >> 8]), ((0xd6) & 0xFF)))); |
| 1306 | ahd_dump_card_state(ahd); |
| 1307 | ahd->msgout_buf[0] = MSG_BUS_DEV_RESET0x0c; |
| 1308 | ahd->msgout_len = 1; |
| 1309 | ahd->msgout_index = 0; |
| 1310 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 1311 | ahd_outb(ahd, MSG_OUT, HOST_MSG)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0xff))); |
| 1312 | ahd_assert_atn(ahd); |
| 1313 | break; |
| 1314 | } |
| 1315 | case PROTO_VIOLATION0x03: |
| 1316 | { |
| 1317 | ahd_handle_proto_violation(ahd); |
| 1318 | break; |
| 1319 | } |
| 1320 | case IGN_WIDE_RES0x05: |
| 1321 | { |
| 1322 | struct ahd_devinfo devinfo; |
| 1323 | |
| 1324 | ahd_fetch_devinfo(ahd, &devinfo); |
| 1325 | ahd_handle_ign_wide_residue(ahd, &devinfo); |
| 1326 | break; |
| 1327 | } |
| 1328 | case BAD_PHASE0x01: |
| 1329 | { |
| 1330 | u_int lastphase; |
| 1331 | |
| 1332 | lastphase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 1333 | printf("%s:%c:%d: unknown scsi bus phase %x, " |
| 1334 | "lastphase = 0x%x. Attempting to continue\n", |
| 1335 | ahd_name(ahd), 'A', |
| 1336 | SCSIID_TARGET(ahd, ahd_inb(ahd, SAVED_SCSIID))((((((ahd)->tags[(0x13a) >> 8])->read_1(((ahd)-> bshs[(0x13a) >> 8]), ((0x13a) & 0xFF)))) & 0xf0 ) >> 0x04), |
| 1337 | lastphase, ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF)))); |
| 1338 | break; |
| 1339 | } |
| 1340 | case MISSED_BUSFREE0x0b: |
| 1341 | { |
| 1342 | u_int lastphase; |
| 1343 | |
| 1344 | lastphase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 1345 | printf("%s:%c:%d: Missed busfree. " |
| 1346 | "Lastphase = 0x%x, Curphase = 0x%x\n", |
| 1347 | ahd_name(ahd), 'A', |
| 1348 | SCSIID_TARGET(ahd, ahd_inb(ahd, SAVED_SCSIID))((((((ahd)->tags[(0x13a) >> 8])->read_1(((ahd)-> bshs[(0x13a) >> 8]), ((0x13a) & 0xFF)))) & 0xf0 ) >> 0x04), |
| 1349 | lastphase, ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF)))); |
| 1350 | ahd_restart(ahd); |
| 1351 | return; |
| 1352 | } |
| 1353 | case DATA_OVERRUN0x09: |
| 1354 | { |
| 1355 | /* |
| 1356 | * When the sequencer detects an overrun, it |
| 1357 | * places the controller in "BITBUCKET" mode |
| 1358 | * and allows the target to complete its transfer. |
| 1359 | * Unfortunately, none of the counters get updated |
| 1360 | * when the controller is in this mode, so we have |
| 1361 | * no way of knowing how large the overrun was. |
| 1362 | */ |
| 1363 | struct scb *scb; |
| 1364 | u_int scbindex; |
| 1365 | #ifdef AHD_DEBUG |
| 1366 | u_int lastphase; |
| 1367 | #endif |
| 1368 | |
| 1369 | scbindex = ahd_get_scbptr(ahd); |
| 1370 | scb = ahd_lookup_scb(ahd, scbindex); |
| 1371 | #ifdef AHD_DEBUG |
| 1372 | lastphase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 1373 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) { |
| 1374 | ahd_print_path(ahd, scb); |
| 1375 | printf("data overrun detected %s. Tag == 0x%x.\n", |
| 1376 | ahd_lookup_phase_entry(lastphase)->phasemsg, |
| 1377 | SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag))); |
| 1378 | ahd_print_path(ahd, scb); |
| 1379 | printf("%s seen Data Phase. Length = %d. " |
| 1380 | "NumSGs = %d.\n", |
| 1381 | ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))) & DPHASE0x20 |
| 1382 | ? "Have" : "Haven't", |
| 1383 | aic_get_transfer_length(scb)((scb)->xs->datalen), scb->sg_count); |
| 1384 | ahd_dump_sglist(scb); |
| 1385 | } |
| 1386 | #endif |
| 1387 | |
| 1388 | /* |
| 1389 | * Set this and it will take effect when the |
| 1390 | * target does a command complete. |
| 1391 | */ |
| 1392 | ahd_freeze_devq(ahd, scb); |
| 1393 | aic_set_transaction_status(scb, CAM_DATA_RUN_ERR)(scb)->xs->error = (CAM_DATA_RUN_ERR); |
| 1394 | aic_freeze_scb(scb); |
| 1395 | break; |
| 1396 | } |
| 1397 | case MKMSG_FAILED0x0a: |
| 1398 | { |
| 1399 | struct ahd_devinfo devinfo; |
| 1400 | struct scb *scb; |
| 1401 | u_int scbid; |
| 1402 | |
| 1403 | ahd_fetch_devinfo(ahd, &devinfo); |
| 1404 | printf("%s:%c:%d:%d: Attempt to issue message failed\n", |
| 1405 | ahd_name(ahd), devinfo.channel, devinfo.target, |
| 1406 | devinfo.lun); |
| 1407 | scbid = ahd_get_scbptr(ahd); |
| 1408 | scb = ahd_lookup_scb(ahd, scbid); |
| 1409 | if (scb != NULL((void *)0)) |
| 1410 | /* |
| 1411 | * Ensure that we didn't put a second instance of this |
| 1412 | * SCB into the QINFIFO. |
| 1413 | */ |
| 1414 | ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 1415 | SCB_GET_CHANNEL(ahd, scb)('A'), |
| 1416 | SCB_GET_LUN(scb)((scb)->hscb->lun), SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)), |
| 1417 | ROLE_INITIATOR, /*status*/0, |
| 1418 | SEARCH_REMOVE); |
| 1419 | ahd_outb(ahd, SCB_CONTROL,(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x10))) |
| 1420 | ahd_inb_scbram(ahd, SCB_CONTROL) & ~MK_MESSAGE)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x10))); |
| 1421 | break; |
| 1422 | } |
| 1423 | case TASKMGMT_FUNC_COMPLETE0x13: |
| 1424 | { |
| 1425 | u_int scbid; |
| 1426 | struct scb *scb; |
| 1427 | |
| 1428 | scbid = ahd_get_scbptr(ahd); |
| 1429 | scb = ahd_lookup_scb(ahd, scbid); |
| 1430 | if (scb != NULL((void *)0)) { |
| 1431 | u_int lun; |
| 1432 | u_int tag; |
| 1433 | cam_status error; |
| 1434 | |
| 1435 | ahd_print_path(ahd, scb); |
| 1436 | printf("Task Management Func 0x%x Complete\n", |
| 1437 | scb->hscb->task_management); |
| 1438 | lun = CAM_LUN_WILDCARD-1; |
| 1439 | tag = SCB_LIST_NULL0xFF00; |
| 1440 | |
| 1441 | switch (scb->hscb->task_management) { |
| 1442 | case SIU_TASKMGMT_ABORT_TASK0x01: |
| 1443 | tag = SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)); |
| 1444 | case SIU_TASKMGMT_ABORT_TASK_SET0x02: |
| 1445 | case SIU_TASKMGMT_CLEAR_TASK_SET0x04: |
| 1446 | lun = scb->hscb->lun; |
| 1447 | error = CAM_REQ_ABORTED; |
| 1448 | ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 1449 | 'A', lun, tag, ROLE_INITIATOR, |
| 1450 | error); |
| 1451 | break; |
| 1452 | case SIU_TASKMGMT_LUN_RESET0x08: |
| 1453 | lun = scb->hscb->lun; |
| 1454 | case SIU_TASKMGMT_TARGET_RESET0x20: |
| 1455 | { |
| 1456 | struct ahd_devinfo devinfo; |
| 1457 | |
| 1458 | ahd_scb_devinfo(ahd, &devinfo, scb); |
| 1459 | error = CAM_BDR_SENT; |
| 1460 | ahd_handle_devreset(ahd, &devinfo, lun, |
| 1461 | CAM_BDR_SENT, |
| 1462 | lun != CAM_LUN_WILDCARD-1 |
| 1463 | ? "Lun Reset" |
| 1464 | : "Target Reset", |
| 1465 | /*verbose_level*/0); |
| 1466 | break; |
| 1467 | } |
| 1468 | default: |
| 1469 | panic("Unexpected TaskMgmt Func"); |
| 1470 | break; |
| 1471 | } |
| 1472 | } |
| 1473 | break; |
| 1474 | } |
| 1475 | case TASKMGMT_CMD_CMPLT_OKAY0x14: |
| 1476 | { |
| 1477 | u_int scbid; |
| 1478 | struct scb *scb; |
| 1479 | |
| 1480 | /* |
| 1481 | * An ABORT TASK TMF failed to be delivered before |
| 1482 | * the targeted command completed normally. |
| 1483 | */ |
| 1484 | scbid = ahd_get_scbptr(ahd); |
| 1485 | scb = ahd_lookup_scb(ahd, scbid); |
| 1486 | if (scb != NULL((void *)0)) { |
| 1487 | /* |
| 1488 | * Remove the second instance of this SCB from |
| 1489 | * the QINFIFO if it is still there. |
| 1490 | */ |
| 1491 | ahd_print_path(ahd, scb); |
| 1492 | printf("SCB completes before TMF\n"); |
| 1493 | /* |
| 1494 | * Handle losing the race. Wait until any |
| 1495 | * current selection completes. We will then |
| 1496 | * set the TMF back to zero in this SCB so that |
| 1497 | * the sequencer doesn't bother to issue another |
| 1498 | * sequencer interrupt for its completion. |
| 1499 | */ |
| 1500 | while ((ahd_inb(ahd, SCSISEQ0)(((ahd)->tags[(0x3a) >> 8])->read_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF))) & ENSELO0x40) != 0 |
| 1501 | && (ahd_inb(ahd, SSTAT0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))) & SELDO0x40) == 0 |
| 1502 | && (ahd_inb(ahd, SSTAT1)(((ahd)->tags[(0x4c) >> 8])->read_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF))) & SELTO0x80) == 0) |
| 1503 | ; |
| 1504 | ahd_outb(ahd, SCB_TASK_MANAGEMENT, 0)(((ahd)->tags[(0x197) >> 8])->write_1(((ahd)-> bshs[(0x197) >> 8]), ((0x197) & 0xFF), (0))); |
| 1505 | ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 1506 | SCB_GET_CHANNEL(ahd, scb)('A'), |
| 1507 | SCB_GET_LUN(scb)((scb)->hscb->lun), SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)), |
| 1508 | ROLE_INITIATOR, /*status*/0, |
| 1509 | SEARCH_REMOVE); |
| 1510 | } |
| 1511 | break; |
| 1512 | } |
| 1513 | case TRACEPOINT00x15: |
| 1514 | case TRACEPOINT10x16: |
| 1515 | case TRACEPOINT20x17: |
| 1516 | case TRACEPOINT30x18: |
| 1517 | printf("%s: Tracepoint %d\n", ahd_name(ahd), |
| 1518 | seqintcode - TRACEPOINT00x15); |
| 1519 | break; |
| 1520 | case NO_SEQINT0x00: |
| 1521 | break; |
| 1522 | case SAW_HWERR0x19: |
| 1523 | ahd_handle_hwerrint(ahd); |
| 1524 | break; |
| 1525 | default: |
| 1526 | printf("%s: Unexpected SEQINTCODE %d\n", ahd_name(ahd), |
| 1527 | seqintcode); |
| 1528 | break; |
| 1529 | } |
| 1530 | /* |
| 1531 | * The sequencer is paused immediately on |
| 1532 | * a SEQINT, so we should restart it when |
| 1533 | * we're done. |
| 1534 | */ |
| 1535 | ahd_unpause(ahd); |
| 1536 | } |
| 1537 | |
| 1538 | void |
| 1539 | ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat) |
| 1540 | { |
| 1541 | struct scb *scb; |
| 1542 | u_int status0; |
| 1543 | u_int status3; |
| 1544 | u_int status; |
| 1545 | u_int lqistat1; |
| 1546 | u_int lqostat0; |
| 1547 | u_int scbid; |
| 1548 | u_int busfreetime; |
| 1549 | |
| 1550 | ahd_update_modes(ahd); |
| 1551 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 1552 | |
| 1553 | status3 = ahd_inb(ahd, SSTAT3)(((ahd)->tags[(0x53) >> 8])->read_1(((ahd)->bshs [(0x53) >> 8]), ((0x53) & 0xFF))) & (NTRAMPERR0x02|OSRAMPERR0x01); |
| 1554 | status0 = ahd_inb(ahd, SSTAT0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))) & (IOERR0x08|OVERRUN0x04|SELDI0x20|SELDO0x40); |
| 1555 | status = ahd_inb(ahd, SSTAT1)(((ahd)->tags[(0x4c) >> 8])->read_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF))) & (SELTO0x80|SCSIRSTI0x20|BUSFREE0x08|SCSIPERR0x04); |
| 1556 | lqistat1 = ahd_inb(ahd, LQISTAT1)(((ahd)->tags[(0x51) >> 8])->read_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF))); |
| 1557 | lqostat0 = ahd_inb(ahd, LQOSTAT0)(((ahd)->tags[(0x54) >> 8])->read_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF))); |
| 1558 | busfreetime = ahd_inb(ahd, SSTAT2)(((ahd)->tags[(0x4d) >> 8])->read_1(((ahd)->bshs [(0x4d) >> 8]), ((0x4d) & 0xFF))) & BUSFREETIME0xc0; |
| 1559 | if ((status0 & (SELDI0x20|SELDO0x40)) != 0) { |
| 1560 | u_int simode0; |
| 1561 | |
| 1562 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 1563 | simode0 = ahd_inb(ahd, SIMODE0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))); |
| 1564 | status0 &= simode0 & (IOERR0x08|OVERRUN0x04|SELDI0x20|SELDO0x40); |
| 1565 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 1566 | } |
| 1567 | scbid = ahd_get_scbptr(ahd); |
| 1568 | scb = ahd_lookup_scb(ahd, scbid); |
| 1569 | if (scb != NULL((void *)0) |
| 1570 | && (ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))) & NOT_IDENTIFIED0x80) != 0) |
| 1571 | scb = NULL((void *)0); |
| 1572 | |
| 1573 | if ((status0 & IOERR0x08) != 0) { |
| 1574 | u_int now_lvd; |
| 1575 | |
| 1576 | now_lvd = ahd_inb(ahd, SBLKCTL)(((ahd)->tags[(0x4a) >> 8])->read_1(((ahd)->bshs [(0x4a) >> 8]), ((0x4a) & 0xFF))) & ENAB400x08; |
| 1577 | printf("%s: Transceiver State Has Changed to %s mode\n", |
| 1578 | ahd_name(ahd), now_lvd ? "LVD" : "SE"); |
| 1579 | ahd_outb(ahd, CLRSINT0, CLRIOERR)(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (0x08))); |
| 1580 | /* |
| 1581 | * A change in I/O mode is equivalent to a bus reset. |
| 1582 | */ |
| 1583 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1584 | ahd_pause(ahd); |
| 1585 | ahd_setup_iocell_workaround(ahd); |
| 1586 | ahd_unpause(ahd); |
| 1587 | } else if ((status0 & OVERRUN0x04) != 0) { |
| 1588 | |
| 1589 | printf("%s: SCSI offset overrun detected. Resetting bus.\n", |
| 1590 | ahd_name(ahd)); |
| 1591 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1592 | } else if ((status & SCSIRSTI0x20) != 0) { |
| 1593 | |
| 1594 | printf("%s: Someone reset channel A\n", ahd_name(ahd)); |
| 1595 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/FALSE0); |
| 1596 | } else if ((status & SCSIPERR0x04) != 0) { |
| 1597 | |
| 1598 | /* Make sure the sequencer is in a safe location. */ |
| 1599 | ahd_clear_critical_section(ahd); |
| 1600 | |
| 1601 | ahd_handle_transmission_error(ahd); |
| 1602 | } else if (lqostat0 != 0) { |
| 1603 | |
| 1604 | printf("%s: lqostat0 == 0x%x!\n", ahd_name(ahd), lqostat0); |
| 1605 | ahd_outb(ahd, CLRLQOINT0, lqostat0)(((ahd)->tags[(0x54) >> 8])->write_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF), (lqostat0))); |
| 1606 | if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0) |
| 1607 | ahd_outb(ahd, CLRLQOINT1, 0)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0))); |
| 1608 | } else if ((status & SELTO0x80) != 0) { |
| 1609 | |
| 1610 | /* Stop the selection */ |
| 1611 | ahd_outb(ahd, SCSISEQ0, 0)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), (0))); |
| 1612 | |
| 1613 | /* Make sure the sequencer is in a safe location. */ |
| 1614 | ahd_clear_critical_section(ahd); |
| 1615 | |
| 1616 | /* No more pending messages */ |
| 1617 | ahd_clear_msg_state(ahd); |
| 1618 | |
| 1619 | /* Clear interrupt state */ |
| 1620 | ahd_outb(ahd, CLRSINT1, CLRSELTIMEO|CLRBUSFREE|CLRSCSIPERR)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x80|0x08|0x04))); |
| 1621 | |
| 1622 | /* |
| 1623 | * Although the driver does not care about the |
| 1624 | * 'Selection in Progress' status bit, the busy |
| 1625 | * LED does. SELINGO is only cleared by a successful |
| 1626 | * selection, so we must manually clear it to insure |
| 1627 | * the LED turns off just incase no future successful |
| 1628 | * selections occur (e.g. no devices on the bus). |
| 1629 | */ |
| 1630 | ahd_outb(ahd, CLRSINT0, CLRSELINGO)(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (0x10))); |
| 1631 | |
| 1632 | scbid = ahd_inw(ahd, WAITING_TID_HEAD0x120); |
| 1633 | scb = ahd_lookup_scb(ahd, scbid); |
| 1634 | if (scb == NULL((void *)0)) { |
| 1635 | printf("%s: ahd_intr - referenced scb not " |
| 1636 | "valid during SELTO scb(0x%x)\n", |
| 1637 | ahd_name(ahd), scbid); |
| 1638 | ahd_dump_card_state(ahd); |
| 1639 | } else { |
| 1640 | struct ahd_devinfo devinfo; |
| 1641 | #ifdef AHD_DEBUG |
| 1642 | if ((ahd_debug & AHD_SHOW_SELTO) != 0) { |
| 1643 | ahd_print_path(ahd, scb); |
| 1644 | printf("Saw Selection Timeout for SCB 0x%x\n", |
| 1645 | scbid); |
| 1646 | } |
| 1647 | #endif |
| 1648 | ahd_scb_devinfo(ahd, &devinfo, scb); |
| 1649 | aic_set_transaction_status(scb, CAM_SEL_TIMEOUT)(scb)->xs->error = (CAM_SEL_TIMEOUT); |
| 1650 | ahd_freeze_devq(ahd, scb); |
| 1651 | |
| 1652 | /* |
| 1653 | * Cancel any pending transactions on the device |
| 1654 | * now that it seems to be missing. This will |
| 1655 | * also revert us to async/narrow transfers until |
| 1656 | * we can renegotiate with the device. |
| 1657 | */ |
| 1658 | ahd_handle_devreset(ahd, &devinfo, |
| 1659 | CAM_LUN_WILDCARD-1, |
| 1660 | CAM_SEL_TIMEOUT, |
| 1661 | "Selection Timeout", |
| 1662 | /*verbose_level*/1); |
| 1663 | } |
| 1664 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 1665 | ahd_iocell_first_selection(ahd); |
| 1666 | ahd_unpause(ahd); |
| 1667 | } else if ((status0 & (SELDI0x20|SELDO0x40)) != 0) { |
| 1668 | |
| 1669 | ahd_iocell_first_selection(ahd); |
| 1670 | ahd_unpause(ahd); |
| 1671 | } else if (status3 != 0) { |
| 1672 | printf("%s: SCSI Cell parity error SSTAT3 == 0x%x\n", |
| 1673 | ahd_name(ahd), status3); |
| 1674 | ahd_outb(ahd, CLRSINT3, status3)(((ahd)->tags[(0x53) >> 8])->write_1(((ahd)->bshs [(0x53) >> 8]), ((0x53) & 0xFF), (status3))); |
| 1675 | } else if ((lqistat1 & (LQIPHASE_LQ0x80|LQIPHASE_NLQ0x40)) != 0) { |
| 1676 | |
| 1677 | /* Make sure the sequencer is in a safe location. */ |
| 1678 | ahd_clear_critical_section(ahd); |
| 1679 | |
| 1680 | ahd_handle_lqiphase_error(ahd, lqistat1); |
| 1681 | } else if ((lqistat1 & LQICRCI_NLQ0x08) != 0) { |
| 1682 | /* |
| 1683 | * This status can be delayed during some |
| 1684 | * streaming operations. The SCSIPHASE |
| 1685 | * handler has already dealt with this case |
| 1686 | * so just clear the error. |
| 1687 | */ |
| 1688 | ahd_outb(ahd, CLRLQIINT1, CLRLQICRCI_NLQ)(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (0x08))); |
| 1689 | } else if ((status & BUSFREE0x08) != 0 |
| 1690 | || (lqistat1 & LQOBUSFREE0x02) != 0) { |
| 1691 | u_int lqostat1; |
| 1692 | int restart; |
| 1693 | int clear_fifo; |
| 1694 | int packetized; |
| 1695 | u_int mode; |
| 1696 | |
| 1697 | /* |
| 1698 | * Clear our selection hardware as soon as possible. |
| 1699 | * We may have an entry in the waiting Q for this target, |
| 1700 | * that is affected by this busfree and we don't want to |
| 1701 | * go about selecting the target while we handle the event. |
| 1702 | */ |
| 1703 | ahd_outb(ahd, SCSISEQ0, 0)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), (0))); |
| 1704 | |
| 1705 | /* Make sure the sequencer is in a safe location. */ |
| 1706 | ahd_clear_critical_section(ahd); |
| 1707 | |
| 1708 | /* |
| 1709 | * Determine what we were up to at the time of |
| 1710 | * the busfree. |
| 1711 | */ |
| 1712 | mode = AHD_MODE_SCSI; |
| 1713 | busfreetime = ahd_inb(ahd, SSTAT2)(((ahd)->tags[(0x4d) >> 8])->read_1(((ahd)->bshs [(0x4d) >> 8]), ((0x4d) & 0xFF))) & BUSFREETIME0xc0; |
| 1714 | lqostat1 = ahd_inb(ahd, LQOSTAT1)(((ahd)->tags[(0x55) >> 8])->read_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF))); |
| 1715 | switch (busfreetime) { |
| 1716 | case BUSFREE_DFF00x80: |
| 1717 | case BUSFREE_DFF10xc0: |
| 1718 | mode = busfreetime == BUSFREE_DFF00x80 |
| 1719 | ? AHD_MODE_DFF0 : AHD_MODE_DFF1; |
| 1720 | ahd_set_modes(ahd, mode, mode); |
| 1721 | scbid = ahd_get_scbptr(ahd); |
| 1722 | scb = ahd_lookup_scb(ahd, scbid); |
| 1723 | if (scb == NULL((void *)0)) { |
| 1724 | printf("%s: Invalid SCB %d in DFF%d " |
| 1725 | "during unexpected busfree\n", |
| 1726 | ahd_name(ahd), scbid, mode); |
| 1727 | packetized = 0; |
| 1728 | } else |
| 1729 | packetized = (scb->flags & SCB_PACKETIZED) != 0; |
| 1730 | clear_fifo = 1; |
| 1731 | break; |
| 1732 | case BUSFREE_LQO0x40: |
| 1733 | clear_fifo = 0; |
| 1734 | packetized = 1; |
| 1735 | break; |
| 1736 | default: |
| 1737 | clear_fifo = 0; |
| 1738 | packetized = (lqostat1 & LQOBUSFREE0x02) != 0; |
| 1739 | if (!packetized |
| 1740 | && ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))) == P_BUSFREE0x01 |
| 1741 | && (ahd_inb(ahd, SSTAT0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))) & SELDI0x20) == 0 |
| 1742 | && ((ahd_inb(ahd, SSTAT0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))) & SELDO0x40) == 0 |
| 1743 | || (ahd_inb(ahd, SCSISEQ0)(((ahd)->tags[(0x3a) >> 8])->read_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF))) & ENSELO0x40) == 0)) |
| 1744 | /* |
| 1745 | * Assume packetized if we are not |
| 1746 | * on the bus in a non-packetized |
| 1747 | * capacity and any pending selection |
| 1748 | * was a packetized selection. |
| 1749 | */ |
| 1750 | packetized = 1; |
| 1751 | break; |
| 1752 | } |
| 1753 | |
| 1754 | #ifdef AHD_DEBUG |
| 1755 | if ((ahd_debug & AHD_SHOW_MISC) != 0) |
| 1756 | printf("Saw Busfree. Busfreetime = 0x%x.\n", |
| 1757 | busfreetime); |
| 1758 | #endif |
| 1759 | /* |
| 1760 | * Busfrees that occur in non-packetized phases are |
| 1761 | * handled by the nonpkt_busfree handler. |
| 1762 | */ |
| 1763 | if (packetized && ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))) == P_BUSFREE0x01) { |
| 1764 | restart = ahd_handle_pkt_busfree(ahd, busfreetime); |
| 1765 | } else { |
| 1766 | packetized = 0; |
| 1767 | restart = ahd_handle_nonpkt_busfree(ahd); |
| 1768 | } |
| 1769 | /* |
| 1770 | * Clear the busfree interrupt status. The setting of |
| 1771 | * the interrupt is a pulse, so in a perfect world, we |
| 1772 | * would not need to muck with the ENBUSFREE logic. This |
| 1773 | * would ensure that if the bus moves on to another |
| 1774 | * connection, busfree protection is still in force. If |
| 1775 | * BUSFREEREV is broken, however, we must manually clear |
| 1776 | * the ENBUSFREE if the busfree occurred during a non-pack |
| 1777 | * connection so that we don't get false positives during |
| 1778 | * future, packetized, connections. |
| 1779 | */ |
| 1780 | ahd_outb(ahd, CLRSINT1, CLRBUSFREE)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x08))); |
| 1781 | if (packetized == 0 |
| 1782 | && (ahd->bugs & AHD_BUSFREEREV_BUG) != 0) |
| 1783 | ahd_outb(ahd, SIMODE1,(((ahd)->tags[(0x57) >> 8])->write_1(((ahd)->bshs [(0x57) >> 8]), ((0x57) & 0xFF), ((((ahd)->tags[ (0x57) >> 8])->read_1(((ahd)->bshs[(0x57) >> 8]), ((0x57) & 0xFF))) & ~0x08))) |
| 1784 | ahd_inb(ahd, SIMODE1) & ~ENBUSFREE)(((ahd)->tags[(0x57) >> 8])->write_1(((ahd)->bshs [(0x57) >> 8]), ((0x57) & 0xFF), ((((ahd)->tags[ (0x57) >> 8])->read_1(((ahd)->bshs[(0x57) >> 8]), ((0x57) & 0xFF))) & ~0x08))); |
| 1785 | |
| 1786 | if (clear_fifo) |
| 1787 | ahd_clear_fifo(ahd, mode); |
| 1788 | |
| 1789 | ahd_clear_msg_state(ahd); |
| 1790 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 1791 | if (restart) { |
| 1792 | ahd_restart(ahd); |
| 1793 | } else { |
| 1794 | ahd_unpause(ahd); |
| 1795 | } |
| 1796 | } else { |
| 1797 | printf("%s: Missing case in ahd_handle_scsiint. status = %x\n", |
| 1798 | ahd_name(ahd), status); |
| 1799 | ahd_dump_card_state(ahd); |
| 1800 | ahd_clear_intstat(ahd); |
| 1801 | ahd_unpause(ahd); |
| 1802 | } |
| 1803 | } |
| 1804 | |
| 1805 | void |
| 1806 | ahd_handle_transmission_error(struct ahd_softc *ahd) |
| 1807 | { |
| 1808 | struct scb *scb; |
| 1809 | u_int scbid; |
| 1810 | u_int lqistat1; |
| 1811 | u_int lqistat2; |
| 1812 | u_int msg_out; |
| 1813 | u_int curphase; |
| 1814 | u_int lastphase; |
| 1815 | u_int perrdiag; |
| 1816 | u_int cur_col; |
| 1817 | int silent; |
| 1818 | |
| 1819 | scb = NULL((void *)0); |
| 1820 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 1821 | lqistat1 = ahd_inb(ahd, LQISTAT1)(((ahd)->tags[(0x51) >> 8])->read_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF))) & ~(LQIPHASE_LQ0x80|LQIPHASE_NLQ0x40); |
| 1822 | lqistat2 = ahd_inb(ahd, LQISTAT2)(((ahd)->tags[(0x52) >> 8])->read_1(((ahd)->bshs [(0x52) >> 8]), ((0x52) & 0xFF))); |
| 1823 | if ((lqistat1 & (LQICRCI_NLQ0x08|LQICRCI_LQ0x10)) == 0 |
| 1824 | && (ahd->bugs & AHD_NLQICRC_DELAYED_BUG) != 0) { |
| 1825 | u_int lqistate; |
| 1826 | |
| 1827 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 1828 | lqistate = ahd_inb(ahd, LQISTATE)(((ahd)->tags[(0x4e) >> 8])->read_1(((ahd)->bshs [(0x4e) >> 8]), ((0x4e) & 0xFF))); |
| 1829 | if ((lqistate >= 0x1E && lqistate <= 0x24) |
| 1830 | || (lqistate == 0x29)) { |
| 1831 | #ifdef AHD_DEBUG |
| 1832 | if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) { |
| 1833 | printf("%s: NLQCRC found via LQISTATE\n", |
| 1834 | ahd_name(ahd)); |
| 1835 | } |
| 1836 | #endif |
| 1837 | lqistat1 |= LQICRCI_NLQ0x08; |
| 1838 | } |
| 1839 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 1840 | } |
| 1841 | |
| 1842 | ahd_outb(ahd, CLRLQIINT1, lqistat1)(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (lqistat1))); |
| 1843 | lastphase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 1844 | curphase = ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & PHASE_MASK0xe0; |
| 1845 | perrdiag = ahd_inb(ahd, PERRDIAG)(((ahd)->tags[(0x4e) >> 8])->read_1(((ahd)->bshs [(0x4e) >> 8]), ((0x4e) & 0xFF))); |
| 1846 | msg_out = MSG_INITIATOR_DET_ERR0x05; |
| 1847 | ahd_outb(ahd, CLRSINT1, CLRSCSIPERR)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x04))); |
| 1848 | |
| 1849 | /* |
| 1850 | * Try to find the SCB associated with this error. |
| 1851 | */ |
| 1852 | silent = FALSE0; |
| 1853 | if (lqistat1 == 0 |
| 1854 | || (lqistat1 & LQICRCI_NLQ0x08) != 0) { |
| 1855 | if ((lqistat1 & (LQICRCI_NLQ0x08|LQIOVERI_NLQ0x01)) != 0) |
| 1856 | ahd_set_active_fifo(ahd); |
| 1857 | scbid = ahd_get_scbptr(ahd); |
| 1858 | scb = ahd_lookup_scb(ahd, scbid); |
| 1859 | if (scb != NULL((void *)0) && SCB_IS_SILENT(scb)(((scb)->flags & SCB_SILENT) != 0)) |
| 1860 | silent = TRUE1; |
| 1861 | } |
| 1862 | |
| 1863 | cur_col = 0; |
| 1864 | if (silent == FALSE0) { |
| 1865 | printf("%s: Transmission error detected\n", ahd_name(ahd)); |
| 1866 | ahd_lqistat1_print(lqistat1, &cur_col, 50)ahd_print_register(((void *)0), 0, "LQISTAT1", 0x51, lqistat1 , &cur_col, 50); |
| 1867 | ahd_lastphase_print(lastphase, &cur_col, 50)ahd_print_register(((void *)0), 0, "LASTPHASE", 0x13c, lastphase , &cur_col, 50); |
| 1868 | ahd_scsisigi_print(curphase, &cur_col, 50)ahd_print_register(((void *)0), 0, "SCSISIGI", 0x41, curphase , &cur_col, 50); |
| 1869 | ahd_perrdiag_print(perrdiag, &cur_col, 50)ahd_print_register(((void *)0), 0, "PERRDIAG", 0x4e, perrdiag , &cur_col, 50); |
| 1870 | printf("\n"); |
| 1871 | ahd_dump_card_state(ahd); |
| 1872 | } |
| 1873 | |
| 1874 | if ((lqistat1 & (LQIOVERI_LQ0x02|LQIOVERI_NLQ0x01)) != 0) { |
| 1875 | if (silent == FALSE0) { |
| 1876 | printf("%s: Gross protocol error during incoming " |
| 1877 | "packet. lqistat1 == 0x%x. Resetting bus.\n", |
| 1878 | ahd_name(ahd), lqistat1); |
| 1879 | } |
| 1880 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1881 | return; |
| 1882 | } else if ((lqistat1 & LQICRCI_LQ0x10) != 0) { |
| 1883 | /* |
| 1884 | * A CRC error has been detected on an incoming LQ. |
| 1885 | * The bus is currently hung on the last ACK. |
| 1886 | * Hit LQIRETRY to release the last ack, and |
| 1887 | * wait for the sequencer to determine that ATNO |
| 1888 | * is asserted while in message out to take us |
| 1889 | * to our host message loop. No NONPACKREQ or |
| 1890 | * LQIPHASE type errors will occur in this |
| 1891 | * scenario. After this first LQIRETRY, the LQI |
| 1892 | * manager will be in ISELO where it will |
| 1893 | * happily sit until another packet phase begins. |
| 1894 | * Unexpected bus free detection is enabled |
| 1895 | * through any phases that occur after we release |
| 1896 | * this last ack until the LQI manager sees a |
| 1897 | * packet phase. This implies we may have to |
| 1898 | * ignore a perfectly valid "unexpected busfree" |
| 1899 | * after our "initiator detected error" message is |
| 1900 | * sent. A busfree is the expected response after |
| 1901 | * we tell the target that its L_Q was corrupted. |
| 1902 | * (SPI4R09 10.7.3.3.3) |
| 1903 | */ |
| 1904 | ahd_outb(ahd, LQCTL2, LQIRETRY)(((ahd)->tags[(0x39) >> 8])->write_1(((ahd)->bshs [(0x39) >> 8]), ((0x39) & 0xFF), (0x80))); |
| 1905 | printf("LQIRetry for LQICRCI_LQ to release ACK\n"); |
| 1906 | } else if ((lqistat1 & LQICRCI_NLQ0x08) != 0) { |
| 1907 | /* |
| 1908 | * We detected a CRC error in a NON-LQ packet. |
| 1909 | * The hardware has varying behavior in this situation |
| 1910 | * depending on whether this packet was part of a |
| 1911 | * stream or not. |
| 1912 | * |
| 1913 | * PKT by PKT mode: |
| 1914 | * The hardware has already acked the complete packet. |
| 1915 | * If the target honors our outstanding ATN condition, |
| 1916 | * we should be (or soon will be) in MSGOUT phase. |
| 1917 | * This will trigger the LQIPHASE_LQ status bit as the |
| 1918 | * hardware was expecting another LQ. Unexpected |
| 1919 | * busfree detection is enabled. Once LQIPHASE_LQ is |
| 1920 | * true (first entry into host message loop is much |
| 1921 | * the same), we must clear LQIPHASE_LQ and hit |
| 1922 | * LQIRETRY so the hardware is ready to handle |
| 1923 | * a future LQ. NONPACKREQ will not be asserted again |
| 1924 | * once we hit LQIRETRY until another packet is |
| 1925 | * processed. The target may either go busfree |
| 1926 | * or start another packet in response to our message. |
| 1927 | * |
| 1928 | * Read Streaming P0 asserted: |
| 1929 | * If we raise ATN and the target completes the entire |
| 1930 | * stream (P0 asserted during the last packet), the |
| 1931 | * hardware will ack all data and return to the ISTART |
| 1932 | * state. When the target responds to our ATN condition, |
| 1933 | * LQIPHASE_LQ will be asserted. We should respond to |
| 1934 | * this with an LQIRETRY to prepare for any future |
| 1935 | * packets. NONPACKREQ will not be asserted again |
| 1936 | * once we hit LQIRETRY until another packet is |
| 1937 | * processed. The target may either go busfree or |
| 1938 | * start another packet in response to our message. |
| 1939 | * Busfree detection is enabled. |
| 1940 | * |
| 1941 | * Read Streaming P0 not asserted: |
| 1942 | * If we raise ATN and the target transitions to |
| 1943 | * MSGOUT in or after a packet where P0 is not |
| 1944 | * asserted, the hardware will assert LQIPHASE_NLQ. |
| 1945 | * We should respond to the LQIPHASE_NLQ with an |
| 1946 | * LQIRETRY. Should the target stay in a non-pkt |
| 1947 | * phase after we send our message, the hardware |
| 1948 | * will assert LQIPHASE_LQ. Recovery is then just as |
| 1949 | * listed above for the read streaming with P0 asserted. |
| 1950 | * Busfree detection is enabled. |
| 1951 | */ |
| 1952 | if (silent == FALSE0) |
| 1953 | printf("LQICRC_NLQ\n"); |
| 1954 | if (scb == NULL((void *)0)) { |
| 1955 | printf("%s: No SCB valid for LQICRC_NLQ. " |
| 1956 | "Resetting bus\n", ahd_name(ahd)); |
| 1957 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1958 | return; |
| 1959 | } |
| 1960 | } else if ((lqistat1 & LQIBADLQI0x04) != 0) { |
| 1961 | printf("Need to handle BADLQI!\n"); |
| 1962 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 1963 | return; |
| 1964 | } else if ((perrdiag & (PARITYERR0x10|PREVPHASE0x20)) == PARITYERR0x10) { |
| 1965 | if ((curphase & ~P_DATAIN_DT0x60) != 0) { |
| 1966 | /* Ack the byte. So we can continue. */ |
| 1967 | if (silent == FALSE0) |
| 1968 | printf("Acking %s to clear perror\n", |
| 1969 | ahd_lookup_phase_entry(curphase)->phasemsg); |
| 1970 | ahd_inb(ahd, SCSIDAT)(((ahd)->tags[(0x44) >> 8])->read_1(((ahd)->bshs [(0x44) >> 8]), ((0x44) & 0xFF))); |
| 1971 | } |
| 1972 | |
| 1973 | if (curphase == P_MESGIN0xe0) |
| 1974 | msg_out = MSG_PARITY_ERROR0x09; |
| 1975 | } |
| 1976 | |
| 1977 | /* |
| 1978 | * We've set the hardware to assert ATN if we |
| 1979 | * get a parity error on "in" phases, so all we |
| 1980 | * need to do is stuff the message buffer with |
| 1981 | * the appropriate message. "In" phases have set |
| 1982 | * mesg_out to something other than MSG_NOP. |
| 1983 | */ |
| 1984 | ahd->send_msg_perror = msg_out; |
| 1985 | if (scb != NULL((void *)0) && msg_out == MSG_INITIATOR_DET_ERR0x05) |
| 1986 | scb->flags |= SCB_TRANSMISSION_ERROR; |
| 1987 | ahd_outb(ahd, MSG_OUT, HOST_MSG)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0xff))); |
| 1988 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 1989 | ahd_unpause(ahd); |
| 1990 | } |
| 1991 | |
| 1992 | void |
| 1993 | ahd_handle_lqiphase_error(struct ahd_softc *ahd, u_int lqistat1) |
| 1994 | { |
| 1995 | /* |
| 1996 | * Clear the sources of the interrupts. |
| 1997 | */ |
| 1998 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 1999 | ahd_outb(ahd, CLRLQIINT1, lqistat1)(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (lqistat1))); |
| 2000 | |
| 2001 | /* |
| 2002 | * If the "illegal" phase changes were in response |
| 2003 | * to our ATN to flag a CRC error, AND we ended up |
| 2004 | * on packet boundaries, clear the error, restart the |
| 2005 | * LQI manager as appropriate, and go on our merry |
| 2006 | * way toward sending the message. Otherwise, reset |
| 2007 | * the bus to clear the error. |
| 2008 | */ |
| 2009 | ahd_set_active_fifo(ahd); |
| 2010 | if ((ahd_inb(ahd, SCSISIGO)(((ahd)->tags[(0x40) >> 8])->read_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF))) & ATNO0x10) != 0 |
| 2011 | && (ahd_inb(ahd, MDFFSTAT)(((ahd)->tags[(0x5d) >> 8])->read_1(((ahd)->bshs [(0x5d) >> 8]), ((0x5d) & 0xFF))) & DLZERO0x04) != 0) { |
| 2012 | if ((lqistat1 & LQIPHASE_LQ0x80) != 0) { |
| 2013 | printf("LQIRETRY for LQIPHASE_LQ\n"); |
| 2014 | ahd_outb(ahd, LQCTL2, LQIRETRY)(((ahd)->tags[(0x39) >> 8])->write_1(((ahd)->bshs [(0x39) >> 8]), ((0x39) & 0xFF), (0x80))); |
| 2015 | } else if ((lqistat1 & LQIPHASE_NLQ0x40) != 0) { |
| 2016 | printf("LQIRETRY for LQIPHASE_NLQ\n"); |
| 2017 | ahd_outb(ahd, LQCTL2, LQIRETRY)(((ahd)->tags[(0x39) >> 8])->write_1(((ahd)->bshs [(0x39) >> 8]), ((0x39) & 0xFF), (0x80))); |
| 2018 | } else |
| 2019 | panic("ahd_handle_lqiphase_error: No phase errors"); |
| 2020 | ahd_dump_card_state(ahd); |
| 2021 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 2022 | ahd_unpause(ahd); |
| 2023 | } else { |
| 2024 | printf("Resetting Channel for LQI Phase error\n"); |
| 2025 | ahd_dump_card_state(ahd); |
| 2026 | ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE1); |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | /* |
| 2031 | * Packetized unexpected or expected busfree. |
| 2032 | * Entered in mode based on busfreetime. |
| 2033 | */ |
| 2034 | int |
| 2035 | ahd_handle_pkt_busfree(struct ahd_softc *ahd, u_int busfreetime) |
| 2036 | { |
| 2037 | u_int lqostat1; |
| 2038 | |
| 2039 | AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 2040); |
| 2040 | ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK))ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 2040);; |
| 2041 | lqostat1 = ahd_inb(ahd, LQOSTAT1)(((ahd)->tags[(0x55) >> 8])->read_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF))); |
| 2042 | if ((lqostat1 & LQOBUSFREE0x02) != 0) { |
| 2043 | struct scb *scb; |
| 2044 | u_int scbid; |
| 2045 | u_int saved_scbptr; |
| 2046 | u_int waiting_h; |
| 2047 | u_int waiting_t; |
| 2048 | u_int next; |
| 2049 | |
| 2050 | /* |
| 2051 | * The LQO manager detected an unexpected busfree |
| 2052 | * either: |
| 2053 | * |
| 2054 | * 1) During an outgoing LQ. |
| 2055 | * 2) After an outgoing LQ but before the first |
| 2056 | * REQ of the command packet. |
| 2057 | * 3) During an outgoing command packet. |
| 2058 | * |
| 2059 | * In all cases, CURRSCB is pointing to the |
| 2060 | * SCB that encountered the failure. Clean |
| 2061 | * up the queue, clear SELDO and LQOBUSFREE, |
| 2062 | * and allow the sequencer to restart the select |
| 2063 | * out at its lesure. |
| 2064 | */ |
| 2065 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 2066 | scbid = ahd_inw(ahd, CURRSCB0x5c); |
| 2067 | scb = ahd_lookup_scb(ahd, scbid); |
| 2068 | if (scb == NULL((void *)0)) |
| 2069 | panic("SCB not valid during LQOBUSFREE"); |
| 2070 | /* |
| 2071 | * Clear the status. |
| 2072 | */ |
| 2073 | ahd_outb(ahd, CLRLQOINT1, CLRLQOBUSFREE)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0x02))); |
| 2074 | if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0) |
| 2075 | ahd_outb(ahd, CLRLQOINT1, 0)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0))); |
| 2076 | ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), ((((ahd)->tags[ (0x3a) >> 8])->read_1(((ahd)->bshs[(0x3a) >> 8]), ((0x3a) & 0xFF))) & ~0x40))); |
| 2077 | ahd_flush_device_writes(ahd); |
| 2078 | ahd_outb(ahd, CLRSINT0, CLRSELDO)(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (0x40))); |
| 2079 | |
| 2080 | /* |
| 2081 | * Return the LQO manager to its idle loop. It will |
| 2082 | * not do this automatically if the busfree occurs |
| 2083 | * after the first REQ of either the LQ or command |
| 2084 | * packet or between the LQ and command packet. |
| 2085 | */ |
| 2086 | ahd_outb(ahd, LQCTL2, ahd_inb(ahd, LQCTL2) | LQOTOIDLE)(((ahd)->tags[(0x39) >> 8])->write_1(((ahd)->bshs [(0x39) >> 8]), ((0x39) & 0xFF), ((((ahd)->tags[ (0x39) >> 8])->read_1(((ahd)->bshs[(0x39) >> 8]), ((0x39) & 0xFF))) | 0x02))); |
| 2087 | |
| 2088 | /* |
| 2089 | * Update the waiting for selection queue so |
| 2090 | * we restart on the correct SCB. |
| 2091 | */ |
| 2092 | waiting_h = ahd_inw(ahd, WAITING_TID_HEAD0x120); |
| 2093 | saved_scbptr = ahd_get_scbptr(ahd); |
| 2094 | if (waiting_h != scbid) { |
| 2095 | |
| 2096 | ahd_outw(ahd, WAITING_TID_HEAD0x120, scbid); |
| 2097 | waiting_t = ahd_inw(ahd, WAITING_TID_TAIL0x122); |
| 2098 | if (waiting_t == waiting_h) { |
| 2099 | ahd_outw(ahd, WAITING_TID_TAIL0x122, scbid); |
| 2100 | next = SCB_LIST_NULL0xFF00; |
| 2101 | } else { |
| 2102 | ahd_set_scbptr(ahd, waiting_h); |
| 2103 | next = ahd_inw_scbram(ahd, SCB_NEXT20x1ae); |
| 2104 | } |
| 2105 | ahd_set_scbptr(ahd, scbid); |
| 2106 | ahd_outw(ahd, SCB_NEXT20x1ae, next); |
| 2107 | } |
| 2108 | ahd_set_scbptr(ahd, saved_scbptr); |
| 2109 | if (scb->crc_retry_count < AHD_MAX_LQ_CRC_ERRORS5) { |
| 2110 | if (SCB_IS_SILENT(scb)(((scb)->flags & SCB_SILENT) != 0) == FALSE0) { |
| 2111 | ahd_print_path(ahd, scb); |
| 2112 | printf("Probable outgoing LQ CRC error. " |
| 2113 | "Retrying command\n"); |
| 2114 | } |
| 2115 | scb->crc_retry_count++; |
| 2116 | } else { |
| 2117 | aic_set_transaction_status(scb, CAM_UNCOR_PARITY)(scb)->xs->error = (CAM_UNCOR_PARITY); |
| 2118 | aic_freeze_scb(scb); |
| 2119 | ahd_freeze_devq(ahd, scb); |
| 2120 | } |
| 2121 | /* Return unpausing the sequencer. */ |
| 2122 | return (0); |
| 2123 | } else if ((ahd_inb(ahd, PERRDIAG)(((ahd)->tags[(0x4e) >> 8])->read_1(((ahd)->bshs [(0x4e) >> 8]), ((0x4e) & 0xFF))) & PARITYERR0x10) != 0) { |
| 2124 | /* |
| 2125 | * Ignore what are really parity errors that |
| 2126 | * occur on the last REQ of a free running |
| 2127 | * clock prior to going busfree. Some drives |
| 2128 | * do not properly active negate just before |
| 2129 | * going busfree resulting in a parity glitch. |
| 2130 | */ |
| 2131 | ahd_outb(ahd, CLRSINT1, CLRSCSIPERR|CLRBUSFREE)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x04|0x08))); |
| 2132 | #ifdef AHD_DEBUG |
| 2133 | if ((ahd_debug & AHD_SHOW_MASKED_ERRORS) != 0) |
| 2134 | printf("%s: Parity on last REQ detected " |
| 2135 | "during busfree phase.\n", |
| 2136 | ahd_name(ahd)); |
| 2137 | #endif |
| 2138 | /* Return unpausing the sequencer. */ |
| 2139 | return (0); |
| 2140 | } |
| 2141 | if (ahd->src_mode != AHD_MODE_SCSI) { |
| 2142 | u_int scbid; |
| 2143 | struct scb *scb; |
| 2144 | |
| 2145 | scbid = ahd_get_scbptr(ahd); |
| 2146 | scb = ahd_lookup_scb(ahd, scbid); |
| 2147 | ahd_print_path(ahd, scb); |
| 2148 | printf("Unexpected PKT busfree condition\n"); |
| 2149 | ahd_dump_card_state(ahd); |
| 2150 | ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), 'A', |
| 2151 | SCB_GET_LUN(scb)((scb)->hscb->lun), SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)), |
| 2152 | ROLE_INITIATOR, CAM_UNEXP_BUSFREE); |
| 2153 | |
| 2154 | /* Return restarting the sequencer. */ |
| 2155 | return (1); |
| 2156 | } |
| 2157 | printf("%s: Unexpected PKT busfree condition\n", ahd_name(ahd)); |
| 2158 | ahd_dump_card_state(ahd); |
| 2159 | /* Restart the sequencer. */ |
| 2160 | return (1); |
| 2161 | } |
| 2162 | |
| 2163 | /* |
| 2164 | * Non-packetized unexpected or expected busfree. |
| 2165 | */ |
| 2166 | int |
| 2167 | ahd_handle_nonpkt_busfree(struct ahd_softc *ahd) |
| 2168 | { |
| 2169 | struct ahd_devinfo devinfo; |
| 2170 | struct scb *scb; |
| 2171 | u_int lastphase; |
| 2172 | u_int saved_scsiid; |
| 2173 | u_int saved_lun; |
| 2174 | u_int target; |
| 2175 | u_int initiator_role_id; |
| 2176 | u_int scbid; |
| 2177 | u_int ppr_busfree; |
| 2178 | int printerror; |
| 2179 | |
| 2180 | /* |
| 2181 | * Look at what phase we were last in. If its message out, |
| 2182 | * chances are pretty good that the busfree was in response |
| 2183 | * to one of our abort requests. |
| 2184 | */ |
| 2185 | lastphase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 2186 | saved_scsiid = ahd_inb(ahd, SAVED_SCSIID)(((ahd)->tags[(0x13a) >> 8])->read_1(((ahd)->bshs [(0x13a) >> 8]), ((0x13a) & 0xFF))); |
| 2187 | saved_lun = ahd_inb(ahd, SAVED_LUN)(((ahd)->tags[(0x13b) >> 8])->read_1(((ahd)->bshs [(0x13b) >> 8]), ((0x13b) & 0xFF))); |
| 2188 | target = SCSIID_TARGET(ahd, saved_scsiid)(((saved_scsiid) & 0xf0) >> 0x04); |
| 2189 | initiator_role_id = SCSIID_OUR_ID(saved_scsiid)((saved_scsiid) & 0x0f); |
| 2190 | ahd_compile_devinfo(&devinfo, initiator_role_id, |
| 2191 | target, saved_lun, 'A', ROLE_INITIATOR); |
| 2192 | printerror = 1; |
| 2193 | |
| 2194 | scbid = ahd_get_scbptr(ahd); |
| 2195 | scb = ahd_lookup_scb(ahd, scbid); |
| 2196 | if (scb != NULL((void *)0) |
| 2197 | && (ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))) & NOT_IDENTIFIED0x80) != 0) |
| 2198 | scb = NULL((void *)0); |
| 2199 | |
| 2200 | ppr_busfree = (ahd->msg_flags & MSG_FLAG_EXPECT_PPR_BUSFREE) != 0; |
| 2201 | if (lastphase == P_MESGOUT0xa0) { |
| 2202 | u_int tag; |
| 2203 | |
| 2204 | tag = SCB_LIST_NULL0xFF00; |
| 2205 | if (ahd_sent_msg(ahd, AHDMSG_1B, MSG_ABORT_TAG0x0d, TRUE1) |
| 2206 | || ahd_sent_msg(ahd, AHDMSG_1B, MSG_ABORT0x06, TRUE1)) { |
| 2207 | int found; |
| 2208 | int sent_msg; |
| 2209 | |
| 2210 | if (scb == NULL((void *)0)) { |
| 2211 | ahd_print_devinfo(ahd, &devinfo); |
| 2212 | printf("Abort for unidentified " |
| 2213 | "connection completed.\n"); |
| 2214 | /* restart the sequencer. */ |
| 2215 | return (1); |
| 2216 | } |
| 2217 | sent_msg = ahd->msgout_buf[ahd->msgout_index - 1]; |
| 2218 | ahd_print_path(ahd, scb); |
| 2219 | printf("SCB %d - Abort%s Completed.\n", |
| 2220 | SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)), |
| 2221 | sent_msg == MSG_ABORT_TAG0x0d ? "" : " Tag"); |
| 2222 | |
| 2223 | if (sent_msg == MSG_ABORT_TAG0x0d) |
| 2224 | tag = SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)); |
| 2225 | |
| 2226 | if ((scb->flags & SCB_CMDPHASE_ABORT) != 0) { |
| 2227 | /* |
| 2228 | * This abort is in response to an |
| 2229 | * unexpected switch to command phase |
| 2230 | * for a packetized connection. Since |
| 2231 | * the identify message was never sent, |
| 2232 | * "saved lun" is 0. We really want to |
| 2233 | * abort only the SCB that encountered |
| 2234 | * this error, which could have a different |
| 2235 | * lun. The SCB will be retried so the OS |
| 2236 | * will see the UA after renegotiating to |
| 2237 | * packetized. |
| 2238 | */ |
| 2239 | tag = SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)); |
| 2240 | saved_lun = scb->hscb->lun; |
| 2241 | } |
| 2242 | found = ahd_abort_scbs(ahd, target, 'A', saved_lun, |
| 2243 | tag, ROLE_INITIATOR, |
| 2244 | CAM_REQ_ABORTED); |
| 2245 | printerror = 0; |
| 2246 | } else if (ahd_sent_msg(ahd, AHDMSG_1B, |
| 2247 | MSG_BUS_DEV_RESET0x0c, TRUE1)) { |
| 2248 | #ifdef __FreeBSD__ |
| 2249 | /* |
| 2250 | * Don't mark the user's request for this BDR |
| 2251 | * as completing with CAM_BDR_SENT. CAM3 |
| 2252 | * specifies CAM_REQ_CMP. |
| 2253 | */ |
| 2254 | if (scb != NULL((void *)0) |
| 2255 | && scb->io_ctx->ccb_h.func_code== XPT_RESET_DEV |
| 2256 | && ahd_match_scb(ahd, scb, target, 'A', |
| 2257 | CAM_LUN_WILDCARD-1, SCB_LIST_NULL0xFF00, |
| 2258 | ROLE_INITIATOR)) |
| 2259 | aic_set_transaction_status(scb, CAM_REQ_CMP)(scb)->xs->error = (CAM_REQ_CMP); |
| 2260 | #endif |
| 2261 | ahd_handle_devreset(ahd, &devinfo, CAM_LUN_WILDCARD-1, |
| 2262 | CAM_BDR_SENT, "Bus Device Reset", |
| 2263 | /*verbose_level*/0); |
| 2264 | printerror = 0; |
| 2265 | } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_PPR0x04, FALSE0) |
| 2266 | && ppr_busfree == 0) { |
| 2267 | struct ahd_initiator_tinfo *tinfo; |
| 2268 | struct ahd_tmode_tstate *tstate; |
| 2269 | |
| 2270 | /* |
| 2271 | * PPR Rejected. |
| 2272 | * |
| 2273 | * If the previous negotiation was packetized, |
| 2274 | * this could be because the device has been |
| 2275 | * reset without our knowledge. Force our |
| 2276 | * current negotiation to async and retry the |
| 2277 | * negotiation. Otherwise retry the command |
| 2278 | * with non-ppr negotiation. |
| 2279 | */ |
| 2280 | #ifdef AHD_DEBUG |
| 2281 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 2282 | printf("PPR negotiation rejected busfree.\n"); |
| 2283 | #endif |
| 2284 | tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, |
| 2285 | devinfo.our_scsiid, |
| 2286 | devinfo.target, &tstate); |
| 2287 | if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ0x01)!=0) { |
| 2288 | ahd_set_width(ahd, &devinfo, |
| 2289 | MSG_EXT_WDTR_BUS_8_BIT0x00, |
| 2290 | AHD_TRANS_CUR0x01, |
| 2291 | /*paused*/TRUE1); |
| 2292 | ahd_set_syncrate(ahd, &devinfo, |
| 2293 | /*period*/0, /*offset*/0, |
| 2294 | /*ppr_options*/0, |
| 2295 | AHD_TRANS_CUR0x01, |
| 2296 | /*paused*/TRUE1); |
| 2297 | /* |
| 2298 | * The expect PPR busfree handler below |
| 2299 | * will effect the retry and necessary |
| 2300 | * abort. |
| 2301 | */ |
| 2302 | } else { |
| 2303 | tinfo->curr.transport_version = 2; |
| 2304 | tinfo->goal.transport_version = 2; |
| 2305 | tinfo->goal.ppr_options = 0; |
| 2306 | /* |
| 2307 | * Remove any SCBs in the waiting for selection |
| 2308 | * queue that may also be for this target so |
| 2309 | * that command ordering is preserved. |
| 2310 | */ |
| 2311 | ahd_freeze_devq(ahd, scb); |
| 2312 | ahd_qinfifo_requeue_tail(ahd, scb); |
| 2313 | printerror = 0; |
| 2314 | } |
| 2315 | } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_WDTR0x03, FALSE0) |
| 2316 | && ppr_busfree == 0) { |
| 2317 | /* |
| 2318 | * Negotiation Rejected. Go-narrow and |
| 2319 | * retry command. |
| 2320 | */ |
| 2321 | #ifdef AHD_DEBUG |
| 2322 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 2323 | printf("WDTR negotiation rejected busfree.\n"); |
| 2324 | #endif |
| 2325 | ahd_set_width(ahd, &devinfo, |
| 2326 | MSG_EXT_WDTR_BUS_8_BIT0x00, |
| 2327 | AHD_TRANS_CUR0x01|AHD_TRANS_GOAL0x04, |
| 2328 | /*paused*/TRUE1); |
| 2329 | /* |
| 2330 | * Remove any SCBs in the waiting for selection |
| 2331 | * queue that may also be for this target so that |
| 2332 | * command ordering is preserved. |
| 2333 | */ |
| 2334 | ahd_freeze_devq(ahd, scb); |
| 2335 | ahd_qinfifo_requeue_tail(ahd, scb); |
| 2336 | printerror = 0; |
| 2337 | } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_SDTR0x01, FALSE0) |
| 2338 | && ppr_busfree == 0) { |
| 2339 | /* |
| 2340 | * Negotiation Rejected. Go-async and |
| 2341 | * retry command. |
| 2342 | */ |
| 2343 | #ifdef AHD_DEBUG |
| 2344 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 2345 | printf("SDTR negotiation rejected busfree.\n"); |
| 2346 | #endif |
| 2347 | ahd_set_syncrate(ahd, &devinfo, |
| 2348 | /*period*/0, /*offset*/0, |
| 2349 | /*ppr_options*/0, |
| 2350 | AHD_TRANS_CUR0x01|AHD_TRANS_GOAL0x04, |
| 2351 | /*paused*/TRUE1); |
| 2352 | /* |
| 2353 | * Remove any SCBs in the waiting for selection |
| 2354 | * queue that may also be for this target so that |
| 2355 | * command ordering is preserved. |
| 2356 | */ |
| 2357 | ahd_freeze_devq(ahd, scb); |
| 2358 | ahd_qinfifo_requeue_tail(ahd, scb); |
| 2359 | printerror = 0; |
| 2360 | } else if ((ahd->msg_flags & MSG_FLAG_EXPECT_IDE_BUSFREE) != 0 |
| 2361 | && ahd_sent_msg(ahd, AHDMSG_1B, |
| 2362 | MSG_INITIATOR_DET_ERR0x05, TRUE1)) { |
| 2363 | |
| 2364 | #ifdef AHD_DEBUG |
| 2365 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 2366 | printf("Expected IDE Busfree\n"); |
| 2367 | #endif |
| 2368 | printerror = 0; |
| 2369 | } else if ((ahd->msg_flags & MSG_FLAG_EXPECT_QASREJ_BUSFREE) |
| 2370 | && ahd_sent_msg(ahd, AHDMSG_1B, |
| 2371 | MSG_MESSAGE_REJECT0x07, TRUE1)) { |
| 2372 | |
| 2373 | #ifdef AHD_DEBUG |
| 2374 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 2375 | printf("Expected QAS Reject Busfree\n"); |
| 2376 | #endif |
| 2377 | printerror = 0; |
| 2378 | } |
| 2379 | } |
| 2380 | |
| 2381 | /* |
| 2382 | * The busfree required flag is honored at the end of |
| 2383 | * the message phases. We check it last in case we |
| 2384 | * had to send some other message that caused a busfree. |
| 2385 | */ |
| 2386 | if (printerror != 0 |
| 2387 | && (lastphase == P_MESGIN0xe0 || lastphase == P_MESGOUT0xa0) |
| 2388 | && ((ahd->msg_flags & MSG_FLAG_EXPECT_PPR_BUSFREE) != 0) |
| 2389 | && (scb != NULL((void *)0))) { |
| 2390 | |
| 2391 | ahd_freeze_devq(ahd, scb); |
| 2392 | aic_set_transaction_status(scb, CAM_REQUEUE_REQ)(scb)->xs->error = (CAM_REQUEUE_REQ); |
| 2393 | aic_freeze_scb(scb); |
| 2394 | if ((ahd->msg_flags & MSG_FLAG_IU_REQ_CHANGED) != 0) { |
| 2395 | ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 2396 | SCB_GET_CHANNEL(ahd, scb)('A'), |
| 2397 | SCB_GET_LUN(scb)((scb)->hscb->lun), SCB_LIST_NULL0xFF00, |
| 2398 | ROLE_INITIATOR, CAM_REQ_ABORTED); |
| 2399 | } else { |
| 2400 | #ifdef AHD_DEBUG |
| 2401 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 2402 | printf("PPR Negotiation Busfree.\n"); |
| 2403 | #endif |
| 2404 | ahd_done(ahd, scb); |
| 2405 | } |
| 2406 | printerror = 0; |
| 2407 | } |
| 2408 | if (printerror != 0) { |
| 2409 | int aborted; |
| 2410 | |
| 2411 | aborted = 0; |
| 2412 | if (scb != NULL((void *)0)) { |
| 2413 | u_int tag; |
| 2414 | |
| 2415 | if ((scb->hscb->control & TAG_ENB0x20) != 0) |
| 2416 | tag = SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)); |
| 2417 | else |
| 2418 | tag = SCB_LIST_NULL0xFF00; |
| 2419 | ahd_print_path(ahd, scb); |
| 2420 | aborted = ahd_abort_scbs(ahd, target, 'A', |
| 2421 | SCB_GET_LUN(scb)((scb)->hscb->lun), tag, |
| 2422 | ROLE_INITIATOR, |
| 2423 | CAM_UNEXP_BUSFREE); |
| 2424 | } else { |
| 2425 | /* |
| 2426 | * We had not fully identified this connection, |
| 2427 | * so we cannot abort anything. |
| 2428 | */ |
| 2429 | printf("%s: ", ahd_name(ahd)); |
| 2430 | } |
| 2431 | printf("Unexpected busfree %s, %d SCBs aborted, " |
| 2432 | "PRGMCNT == 0x%x\n", |
| 2433 | ahd_lookup_phase_entry(lastphase)->phasemsg, |
| 2434 | aborted, |
| 2435 | ahd_inw(ahd, PRGMCNT0xde)); |
| 2436 | ahd_dump_card_state(ahd); |
| 2437 | if (lastphase != P_BUSFREE0x01) |
| 2438 | ahd_force_renegotiation(ahd, &devinfo); |
| 2439 | } |
| 2440 | /* Always restart the sequencer. */ |
| 2441 | return (1); |
| 2442 | } |
| 2443 | |
| 2444 | void |
| 2445 | ahd_handle_proto_violation(struct ahd_softc *ahd) |
| 2446 | { |
| 2447 | struct ahd_devinfo devinfo; |
| 2448 | struct scb *scb; |
| 2449 | u_int scbid; |
| 2450 | u_int seq_flags; |
| 2451 | u_int curphase; |
| 2452 | u_int lastphase; |
| 2453 | int found; |
| 2454 | |
| 2455 | ahd_fetch_devinfo(ahd, &devinfo); |
| 2456 | scbid = ahd_get_scbptr(ahd); |
| 2457 | scb = ahd_lookup_scb(ahd, scbid); |
| 2458 | seq_flags = ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))); |
| 2459 | curphase = ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & PHASE_MASK0xe0; |
| 2460 | lastphase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 2461 | if ((seq_flags & NOT_IDENTIFIED0x80) != 0) { |
| 2462 | |
| 2463 | /* |
| 2464 | * The reconnecting target either did not send an |
| 2465 | * identify message, or did, but we didn't find an SCB |
| 2466 | * to match. |
| 2467 | */ |
| 2468 | ahd_print_devinfo(ahd, &devinfo); |
| 2469 | printf("Target did not send an IDENTIFY message. " |
| 2470 | "LASTPHASE = 0x%x.\n", lastphase); |
| 2471 | scb = NULL((void *)0); |
| 2472 | } else if (scb == NULL((void *)0)) { |
| 2473 | /* |
| 2474 | * We don't seem to have an SCB active for this |
| 2475 | * transaction. Print an error and reset the bus. |
| 2476 | */ |
| 2477 | ahd_print_devinfo(ahd, &devinfo); |
| 2478 | printf("No SCB found during protocol violation\n"); |
| 2479 | goto proto_violation_reset; |
| 2480 | } else { |
| 2481 | aic_set_transaction_status(scb, CAM_SEQUENCE_FAIL)(scb)->xs->error = (CAM_SEQUENCE_FAIL); |
| 2482 | if ((seq_flags & NO_CDB_SENT0x40) != 0) { |
| 2483 | ahd_print_path(ahd, scb); |
| 2484 | printf("No or incomplete CDB sent to device.\n"); |
| 2485 | } else if ((ahd_inb_scbram(ahd, SCB_CONTROL0x192) |
| 2486 | & STATUS_RCVD0x08) == 0) { |
| 2487 | /* |
| 2488 | * The target never bothered to provide status to |
| 2489 | * us prior to completing the command. Since we don't |
| 2490 | * know the disposition of this command, we must attempt |
| 2491 | * to abort it. Assert ATN and prepare to send an abort |
| 2492 | * message. |
| 2493 | */ |
| 2494 | ahd_print_path(ahd, scb); |
| 2495 | printf("Completed command without status.\n"); |
| 2496 | } else { |
| 2497 | ahd_print_path(ahd, scb); |
| 2498 | printf("Unknown protocol violation.\n"); |
| 2499 | ahd_dump_card_state(ahd); |
| 2500 | } |
| 2501 | } |
| 2502 | if ((lastphase & ~P_DATAIN_DT0x60) == 0 |
| 2503 | || lastphase == P_COMMAND0x80) { |
| 2504 | proto_violation_reset: |
| 2505 | /* |
| 2506 | * Target either went directly to data |
| 2507 | * phase or didn't respond to our ATN. |
| 2508 | * The only safe thing to do is to blow |
| 2509 | * it away with a bus reset. |
| 2510 | */ |
| 2511 | found = ahd_reset_channel(ahd, 'A', TRUE1); |
| 2512 | printf("%s: Issued Channel %c Bus Reset. " |
| 2513 | "%d SCBs aborted\n", ahd_name(ahd), 'A', found); |
| 2514 | } else { |
| 2515 | /* |
| 2516 | * Leave the selection hardware off in case |
| 2517 | * this abort attempt will affect yet to |
| 2518 | * be sent commands. |
| 2519 | */ |
| 2520 | ahd_outb(ahd, SCSISEQ0,(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), ((((ahd)->tags[ (0x3a) >> 8])->read_1(((ahd)->bshs[(0x3a) >> 8]), ((0x3a) & 0xFF))) & ~0x40))) |
| 2521 | ahd_inb(ahd, SCSISEQ0) & ~ENSELO)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), ((((ahd)->tags[ (0x3a) >> 8])->read_1(((ahd)->bshs[(0x3a) >> 8]), ((0x3a) & 0xFF))) & ~0x40))); |
| 2522 | ahd_assert_atn(ahd); |
| 2523 | ahd_outb(ahd, MSG_OUT, HOST_MSG)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0xff))); |
| 2524 | if (scb == NULL((void *)0)) { |
| 2525 | ahd_print_devinfo(ahd, &devinfo); |
| 2526 | ahd->msgout_buf[0] = MSG_ABORT_TASK0x0d; |
| 2527 | ahd->msgout_len = 1; |
| 2528 | ahd->msgout_index = 0; |
| 2529 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 2530 | } else { |
| 2531 | ahd_print_path(ahd, scb); |
| 2532 | scb->flags |= SCB_ABORT; |
| 2533 | } |
| 2534 | printf("Protocol violation %s. Attempting to abort.\n", |
| 2535 | ahd_lookup_phase_entry(curphase)->phasemsg); |
| 2536 | } |
| 2537 | } |
| 2538 | |
| 2539 | /* |
| 2540 | * Force renegotiation to occur the next time we initiate |
| 2541 | * a command to the current device. |
| 2542 | */ |
| 2543 | void |
| 2544 | ahd_force_renegotiation(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 2545 | { |
| 2546 | struct ahd_initiator_tinfo *targ_info; |
| 2547 | struct ahd_tmode_tstate *tstate; |
| 2548 | |
| 2549 | #ifdef AHD_DEBUG |
| 2550 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 2551 | ahd_print_devinfo(ahd, devinfo); |
| 2552 | printf("Forcing renegotiation\n"); |
| 2553 | } |
| 2554 | #endif |
| 2555 | targ_info = ahd_fetch_transinfo(ahd, |
| 2556 | devinfo->channel, |
| 2557 | devinfo->our_scsiid, |
| 2558 | devinfo->target, |
| 2559 | &tstate); |
| 2560 | ahd_update_neg_request(ahd, devinfo, tstate, |
| 2561 | targ_info, AHD_NEG_IF_NON_ASYNC); |
| 2562 | } |
| 2563 | |
| 2564 | #define AHD_MAX_STEPS2000 2000 |
| 2565 | void |
| 2566 | ahd_clear_critical_section(struct ahd_softc *ahd) |
| 2567 | { |
| 2568 | ahd_mode_state saved_modes; |
| 2569 | int stepping; |
| 2570 | int steps; |
| 2571 | int first_instr; |
| 2572 | u_int simode0; |
| 2573 | u_int simode1; |
| 2574 | u_int simode3; |
| 2575 | u_int lqimode0; |
| 2576 | u_int lqimode1; |
| 2577 | u_int lqomode0; |
| 2578 | u_int lqomode1; |
| 2579 | |
| 2580 | if (ahd->num_critical_sections == 0) |
| 2581 | return; |
| 2582 | |
| 2583 | stepping = FALSE0; |
| 2584 | steps = 0; |
| 2585 | first_instr = 0; |
| 2586 | simode0 = 0; |
| 2587 | simode1 = 0; |
| 2588 | simode3 = 0; |
| 2589 | lqimode0 = 0; |
| 2590 | lqimode1 = 0; |
| 2591 | lqomode0 = 0; |
| 2592 | lqomode1 = 0; |
| 2593 | saved_modes = ahd_save_modes(ahd); |
| 2594 | for (;;) { |
| 2595 | struct cs *cs; |
| 2596 | u_int seqaddr; |
| 2597 | u_int i; |
| 2598 | |
| 2599 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 2600 | seqaddr = ahd_inw(ahd, CURADDR0xf4); |
| 2601 | |
| 2602 | cs = ahd->critical_sections; |
| 2603 | for (i = 0; i < ahd->num_critical_sections; i++, cs++) { |
| 2604 | |
| 2605 | if (cs->begin < seqaddr && cs->end >= seqaddr) |
| 2606 | break; |
| 2607 | } |
| 2608 | |
| 2609 | if (i == ahd->num_critical_sections) |
| 2610 | break; |
| 2611 | |
| 2612 | if (steps > AHD_MAX_STEPS2000) { |
| 2613 | printf("%s: Infinite loop in critical section\n" |
| 2614 | "%s: First Instruction 0x%x now 0x%x\n", |
| 2615 | ahd_name(ahd), ahd_name(ahd), first_instr, |
| 2616 | seqaddr); |
| 2617 | ahd_dump_card_state(ahd); |
| 2618 | panic("critical section loop"); |
| 2619 | } |
| 2620 | |
| 2621 | steps++; |
| 2622 | #ifdef AHD_DEBUG |
| 2623 | if ((ahd_debug & AHD_SHOW_MISC) != 0) |
| 2624 | printf("%s: Single stepping at 0x%x\n", ahd_name(ahd), |
| 2625 | seqaddr); |
| 2626 | #endif |
| 2627 | if (stepping == FALSE0) { |
| 2628 | |
| 2629 | first_instr = seqaddr; |
| 2630 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 2631 | simode0 = ahd_inb(ahd, SIMODE0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))); |
| 2632 | simode3 = ahd_inb(ahd, SIMODE3)(((ahd)->tags[(0x53) >> 8])->read_1(((ahd)->bshs [(0x53) >> 8]), ((0x53) & 0xFF))); |
| 2633 | lqimode0 = ahd_inb(ahd, LQIMODE0)(((ahd)->tags[(0x50) >> 8])->read_1(((ahd)->bshs [(0x50) >> 8]), ((0x50) & 0xFF))); |
| 2634 | lqimode1 = ahd_inb(ahd, LQIMODE1)(((ahd)->tags[(0x51) >> 8])->read_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF))); |
| 2635 | lqomode0 = ahd_inb(ahd, LQOMODE0)(((ahd)->tags[(0x54) >> 8])->read_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF))); |
| 2636 | lqomode1 = ahd_inb(ahd, LQOMODE1)(((ahd)->tags[(0x55) >> 8])->read_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF))); |
| 2637 | ahd_outb(ahd, SIMODE0, 0)(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (0))); |
| 2638 | ahd_outb(ahd, SIMODE3, 0)(((ahd)->tags[(0x53) >> 8])->write_1(((ahd)->bshs [(0x53) >> 8]), ((0x53) & 0xFF), (0))); |
| 2639 | ahd_outb(ahd, LQIMODE0, 0)(((ahd)->tags[(0x50) >> 8])->write_1(((ahd)->bshs [(0x50) >> 8]), ((0x50) & 0xFF), (0))); |
| 2640 | ahd_outb(ahd, LQIMODE1, 0)(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (0))); |
| 2641 | ahd_outb(ahd, LQOMODE0, 0)(((ahd)->tags[(0x54) >> 8])->write_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF), (0))); |
| 2642 | ahd_outb(ahd, LQOMODE1, 0)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0))); |
| 2643 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 2644 | simode1 = ahd_inb(ahd, SIMODE1)(((ahd)->tags[(0x57) >> 8])->read_1(((ahd)->bshs [(0x57) >> 8]), ((0x57) & 0xFF))); |
| 2645 | /* |
| 2646 | * We don't clear ENBUSFREE. Unfortunately |
| 2647 | * we cannot re-enable busfree detection within |
| 2648 | * the current connection, so we must leave it |
| 2649 | * on while single stepping. |
| 2650 | */ |
| 2651 | ahd_outb(ahd, SIMODE1, simode1 & ENBUSFREE)(((ahd)->tags[(0x57) >> 8])->write_1(((ahd)->bshs [(0x57) >> 8]), ((0x57) & 0xFF), (simode1 & 0x08 ))); |
| 2652 | ahd_outb(ahd, SEQCTL0, ahd_inb(ahd, SEQCTL0) | STEP)(((ahd)->tags[(0xd6) >> 8])->write_1(((ahd)->bshs [(0xd6) >> 8]), ((0xd6) & 0xFF), ((((ahd)->tags[ (0xd6) >> 8])->read_1(((ahd)->bshs[(0xd6) >> 8]), ((0xd6) & 0xFF))) | 0x04))); |
| 2653 | stepping = TRUE1; |
| 2654 | } |
| 2655 | ahd_outb(ahd, CLRSINT1, CLRBUSFREE)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x08))); |
| 2656 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 2657 | ahd_set_modes(ahd, ahd->saved_src_mode, ahd->saved_dst_mode); |
| 2658 | ahd_outb(ahd, HCNTRL, ahd->unpause)(((ahd)->tags[(0x05) >> 8])->write_1(((ahd)->bshs [(0x05) >> 8]), ((0x05) & 0xFF), (ahd->unpause)) ); |
| 2659 | while (!ahd_is_paused(ahd)) |
| 2660 | aic_delay(200)(*delay_func)(200); |
| 2661 | ahd_update_modes(ahd); |
| 2662 | } |
| 2663 | if (stepping) { |
| 2664 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 2665 | ahd_outb(ahd, SIMODE0, simode0)(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (simode0))); |
| 2666 | ahd_outb(ahd, SIMODE3, simode3)(((ahd)->tags[(0x53) >> 8])->write_1(((ahd)->bshs [(0x53) >> 8]), ((0x53) & 0xFF), (simode3))); |
| 2667 | ahd_outb(ahd, LQIMODE0, lqimode0)(((ahd)->tags[(0x50) >> 8])->write_1(((ahd)->bshs [(0x50) >> 8]), ((0x50) & 0xFF), (lqimode0))); |
| 2668 | ahd_outb(ahd, LQIMODE1, lqimode1)(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (lqimode1))); |
| 2669 | ahd_outb(ahd, LQOMODE0, lqomode0)(((ahd)->tags[(0x54) >> 8])->write_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF), (lqomode0))); |
| 2670 | ahd_outb(ahd, LQOMODE1, lqomode1)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (lqomode1))); |
| 2671 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 2672 | ahd_outb(ahd, SEQCTL0, ahd_inb(ahd, SEQCTL0) & ~STEP)(((ahd)->tags[(0xd6) >> 8])->write_1(((ahd)->bshs [(0xd6) >> 8]), ((0xd6) & 0xFF), ((((ahd)->tags[ (0xd6) >> 8])->read_1(((ahd)->bshs[(0xd6) >> 8]), ((0xd6) & 0xFF))) & ~0x04))); |
| 2673 | ahd_outb(ahd, SIMODE1, simode1)(((ahd)->tags[(0x57) >> 8])->write_1(((ahd)->bshs [(0x57) >> 8]), ((0x57) & 0xFF), (simode1))); |
| 2674 | /* |
| 2675 | * SCSIINT seems to glitch occasionally when |
| 2676 | * the interrupt masks are restored. Clear SCSIINT |
| 2677 | * one more time so that only persistent errors |
| 2678 | * are seen as a real interrupt. |
| 2679 | */ |
| 2680 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 2681 | } |
| 2682 | ahd_restore_modes(ahd, saved_modes); |
| 2683 | } |
| 2684 | |
| 2685 | /* |
| 2686 | * Clear any pending interrupt status. |
| 2687 | */ |
| 2688 | void |
| 2689 | ahd_clear_intstat(struct ahd_softc *ahd) |
| 2690 | { |
| 2691 | AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 2692); |
| 2692 | ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK))ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 2692);; |
| 2693 | /* Clear any interrupt conditions this may have caused */ |
| 2694 | ahd_outb(ahd, CLRLQIINT0, CLRLQIATNQAS|CLRLQICRCT1|CLRLQICRCT2(((ahd)->tags[(0x50) >> 8])->write_1(((ahd)->bshs [(0x50) >> 8]), ((0x50) & 0xFF), (0x20|0x10|0x08 |0x04 |0x02|0x01))) |
| 2695 | |CLRLQIBADLQT|CLRLQIATNLQ|CLRLQIATNCMD)(((ahd)->tags[(0x50) >> 8])->write_1(((ahd)->bshs [(0x50) >> 8]), ((0x50) & 0xFF), (0x20|0x10|0x08 |0x04 |0x02|0x01))); |
| 2696 | ahd_outb(ahd, CLRLQIINT1, CLRLQIPHASE_LQ|CLRLQIPHASE_NLQ|CLRLIQABORT(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (0x80|0x40|0x20 |0x10 |0x08|0x04 |0x02|0x01|0x20))) |
| 2697 | |CLRLQICRCI_LQ|CLRLQICRCI_NLQ|CLRLQIBADLQI(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (0x80|0x40|0x20 |0x10 |0x08|0x04 |0x02|0x01|0x20))) |
| 2698 | |CLRLQIOVERI_LQ|CLRLQIOVERI_NLQ|CLRNONPACKREQ)(((ahd)->tags[(0x51) >> 8])->write_1(((ahd)->bshs [(0x51) >> 8]), ((0x51) & 0xFF), (0x80|0x40|0x20 |0x10 |0x08|0x04 |0x02|0x01|0x20))); |
| 2699 | ahd_outb(ahd, CLRLQOINT0, CLRLQOTARGSCBPERR|CLRLQOSTOPT2|CLRLQOATNLQ(((ahd)->tags[(0x54) >> 8])->write_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF), (0x10|0x08|0x04 |0x02 |0x01))) |
| 2700 | |CLRLQOATNPKT|CLRLQOTCRC)(((ahd)->tags[(0x54) >> 8])->write_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF), (0x10|0x08|0x04 |0x02 |0x01))); |
| 2701 | ahd_outb(ahd, CLRLQOINT1, CLRLQOINITSCBPERR|CLRLQOSTOPI2|CLRLQOBADQAS(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0x10|0x08|0x04 |0x02 |0x01))) |
| 2702 | |CLRLQOBUSFREE|CLRLQOPHACHGINPKT)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0x10|0x08|0x04 |0x02 |0x01))); |
| 2703 | if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0) { |
| 2704 | ahd_outb(ahd, CLRLQOINT0, 0)(((ahd)->tags[(0x54) >> 8])->write_1(((ahd)->bshs [(0x54) >> 8]), ((0x54) & 0xFF), (0))); |
| 2705 | ahd_outb(ahd, CLRLQOINT1, 0)(((ahd)->tags[(0x55) >> 8])->write_1(((ahd)->bshs [(0x55) >> 8]), ((0x55) & 0xFF), (0))); |
| 2706 | } |
| 2707 | ahd_outb(ahd, CLRSINT3, CLRNTRAMPERR|CLROSRAMPERR)(((ahd)->tags[(0x53) >> 8])->write_1(((ahd)->bshs [(0x53) >> 8]), ((0x53) & 0xFF), (0x02|0x01))); |
| 2708 | ahd_outb(ahd, CLRSINT1, CLRSELTIMEO|CLRATNO|CLRSCSIRSTI(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x80|0x40|0x20 |0x08 |0x04|0x01))) |
| 2709 | |CLRBUSFREE|CLRSCSIPERR|CLRREQINIT)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x80|0x40|0x20 |0x08 |0x04|0x01))); |
| 2710 | ahd_outb(ahd, CLRSINT0, CLRSELDO|CLRSELDI|CLRSELINGO(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (0x40|0x20|0x10 |0x08 |0x04))) |
| 2711 | |CLRIOERR|CLROVERRUN)(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), (0x40|0x20|0x10 |0x08 |0x04))); |
| 2712 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 2713 | } |
| 2714 | |
| 2715 | /**************************** Debugging Routines ******************************/ |
| 2716 | #ifdef AHD_DEBUG |
| 2717 | uint32_t ahd_debug = AHD_DEBUG_OPTS; |
| 2718 | #endif |
| 2719 | void |
| 2720 | ahd_print_scb(struct scb *scb) |
| 2721 | { |
| 2722 | struct hardware_scb *hscb; |
| 2723 | int i; |
| 2724 | |
| 2725 | hscb = scb->hscb; |
| 2726 | printf("scb:%p control:0x%x scsiid:0x%x lun:%d cdb_len:%d\n", |
| 2727 | (void *)scb, |
| 2728 | hscb->control, |
| 2729 | hscb->scsiid, |
| 2730 | hscb->lun, |
| 2731 | hscb->cdb_len); |
| 2732 | printf("Shared Data: "); |
| 2733 | for (i = 0; i < sizeof(hscb->shared_data.idata.cdb); i++) |
| 2734 | printf("%#02x", hscb->shared_data.idata.cdb[i]); |
| 2735 | printf(" dataptr:%#x%x datacnt:%#x sgptr:%#x tag:%#x\n", |
| 2736 | (uint32_t)((aic_le64toh(hscb->dataptr)((__uint64_t)(hscb->dataptr)) >> 32) & 0xFFFFFFFF), |
| 2737 | (uint32_t)(aic_le64toh(hscb->dataptr)((__uint64_t)(hscb->dataptr)) & 0xFFFFFFFF), |
| 2738 | aic_le32toh(hscb->datacnt)((__uint32_t)(hscb->datacnt)), |
| 2739 | aic_le32toh(hscb->sgptr)((__uint32_t)(hscb->sgptr)), |
| 2740 | SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag))); |
| 2741 | ahd_dump_sglist(scb); |
| 2742 | } |
| 2743 | |
| 2744 | void |
| 2745 | ahd_dump_sglist(struct scb *scb) |
| 2746 | { |
| 2747 | int i; |
| 2748 | |
| 2749 | if (scb->sg_count > 0) { |
| 2750 | if ((scb->ahd_softc->flags & AHD_64BIT_ADDRESSING) != 0) { |
| 2751 | struct ahd_dma64_seg *sg_list; |
| 2752 | |
| 2753 | sg_list = (struct ahd_dma64_seg*)scb->sg_list; |
| 2754 | for (i = 0; i < scb->sg_count; i++) { |
| 2755 | uint64_t addr; |
| 2756 | uint32_t len; |
| 2757 | |
| 2758 | addr = aic_le64toh(sg_list[i].addr)((__uint64_t)(sg_list[i].addr)); |
| 2759 | len = aic_le32toh(sg_list[i].len)((__uint32_t)(sg_list[i].len)); |
| 2760 | printf("sg[%d] - Addr 0x%x%x : Length %d%s\n", |
| 2761 | i, |
| 2762 | (uint32_t)((addr >> 32) & 0xFFFFFFFF), |
| 2763 | (uint32_t)(addr & 0xFFFFFFFF), |
| 2764 | sg_list[i].len & AHD_SG_LEN_MASK0x00FFFFFF, |
| 2765 | (sg_list[i].len & AHD_DMA_LAST_SEG0x80000000) |
| 2766 | ? " Last" : ""); |
| 2767 | } |
| 2768 | } else { |
| 2769 | struct ahd_dma_seg *sg_list; |
| 2770 | |
| 2771 | sg_list = (struct ahd_dma_seg*)scb->sg_list; |
| 2772 | for (i = 0; i < scb->sg_count; i++) { |
| 2773 | uint32_t len; |
| 2774 | |
| 2775 | len = aic_le32toh(sg_list[i].len)((__uint32_t)(sg_list[i].len)); |
| 2776 | printf("sg[%d] - Addr 0x%x%x : Length %d%s\n", |
| 2777 | i, |
| 2778 | (len & AHD_SG_HIGH_ADDR_MASK0x7F000000) >> 24, |
| 2779 | aic_le32toh(sg_list[i].addr)((__uint32_t)(sg_list[i].addr)), |
| 2780 | len & AHD_SG_LEN_MASK0x00FFFFFF, |
| 2781 | len & AHD_DMA_LAST_SEG0x80000000 ? " Last" : ""); |
| 2782 | } |
| 2783 | } |
| 2784 | } |
| 2785 | } |
| 2786 | |
| 2787 | /************************* Transfer Negotiation *******************************/ |
| 2788 | /* |
| 2789 | * Allocate per target mode instance (ID we respond to as a target) |
| 2790 | * transfer negotiation data structures. |
| 2791 | */ |
| 2792 | struct ahd_tmode_tstate * |
| 2793 | ahd_alloc_tstate(struct ahd_softc *ahd, u_int scsi_id, char channel) |
| 2794 | { |
| 2795 | struct ahd_tmode_tstate *master_tstate; |
| 2796 | struct ahd_tmode_tstate *tstate; |
| 2797 | int i; |
| 2798 | |
| 2799 | master_tstate = ahd->enabled_targets[ahd->our_id]; |
| 2800 | if (ahd->enabled_targets[scsi_id] != NULL((void *)0) |
| 2801 | && ahd->enabled_targets[scsi_id] != master_tstate) |
| 2802 | panic("%s: ahd_alloc_tstate - Target already allocated", |
| 2803 | ahd_name(ahd)); |
| 2804 | tstate = malloc(sizeof(*tstate), M_DEVBUF2, M_NOWAIT0x0002 | M_ZERO0x0008); |
| 2805 | if (tstate == NULL((void *)0)) |
| 2806 | return (NULL((void *)0)); |
| 2807 | |
| 2808 | /* |
| 2809 | * If we have allocated a master tstate, copy user settings from |
| 2810 | * the master tstate (taken from SRAM or the EEPROM) for this |
| 2811 | * channel, but reset our current and goal settings to async/narrow |
| 2812 | * until an initiator talks to us. |
| 2813 | */ |
| 2814 | if (master_tstate != NULL((void *)0)) { |
| 2815 | memcpy(tstate, master_tstate, sizeof(*tstate))__builtin_memcpy((tstate), (master_tstate), (sizeof(*tstate)) ); |
| 2816 | memset(tstate->enabled_luns, 0, sizeof(tstate->enabled_luns))__builtin_memset((tstate->enabled_luns), (0), (sizeof(tstate ->enabled_luns))); |
| 2817 | for (i = 0; i < 16; i++) { |
| 2818 | memset(&tstate->transinfo[i].curr, 0,__builtin_memset((&tstate->transinfo[i].curr), (0), (sizeof (tstate->transinfo[i].curr))) |
| 2819 | sizeof(tstate->transinfo[i].curr))__builtin_memset((&tstate->transinfo[i].curr), (0), (sizeof (tstate->transinfo[i].curr))); |
| 2820 | memset(&tstate->transinfo[i].goal, 0,__builtin_memset((&tstate->transinfo[i].goal), (0), (sizeof (tstate->transinfo[i].goal))) |
| 2821 | sizeof(tstate->transinfo[i].goal))__builtin_memset((&tstate->transinfo[i].goal), (0), (sizeof (tstate->transinfo[i].goal))); |
| 2822 | } |
| 2823 | } |
| 2824 | ahd->enabled_targets[scsi_id] = tstate; |
| 2825 | return (tstate); |
| 2826 | } |
| 2827 | |
| 2828 | #ifdef AHD_TARGET_MODE |
| 2829 | /* |
| 2830 | * Free per target mode instance (ID we respond to as a target) |
| 2831 | * transfer negotiation data structures. |
| 2832 | */ |
| 2833 | void |
| 2834 | ahd_free_tstate(struct ahd_softc *ahd, u_int scsi_id, char channel, int force) |
| 2835 | { |
| 2836 | struct ahd_tmode_tstate *tstate; |
| 2837 | |
| 2838 | /* |
| 2839 | * Don't clean up our "master" tstate. |
| 2840 | * It has our default user settings. |
| 2841 | */ |
| 2842 | if (scsi_id == ahd->our_id |
| 2843 | && force == FALSE0) |
| 2844 | return; |
| 2845 | |
| 2846 | tstate = ahd->enabled_targets[scsi_id]; |
| 2847 | if (tstate != NULL((void *)0)) |
| 2848 | free(tstate, M_DEVBUF2, 0); |
| 2849 | ahd->enabled_targets[scsi_id] = NULL((void *)0); |
| 2850 | } |
| 2851 | #endif |
| 2852 | |
| 2853 | /* |
| 2854 | * Called when we have an active connection to a target on the bus, |
| 2855 | * this function finds the nearest period to the input period limited |
| 2856 | * by the capabilities of the bus connectivity of and sync settings for |
| 2857 | * the target. |
| 2858 | */ |
| 2859 | void |
| 2860 | ahd_devlimited_syncrate(struct ahd_softc *ahd, |
| 2861 | struct ahd_initiator_tinfo *tinfo, |
| 2862 | u_int *period, u_int *ppr_options, role_t role) |
| 2863 | { |
| 2864 | struct ahd_transinfo *transinfo; |
| 2865 | u_int maxsync; |
| 2866 | |
| 2867 | if ((ahd_inb(ahd, SBLKCTL)(((ahd)->tags[(0x4a) >> 8])->read_1(((ahd)->bshs [(0x4a) >> 8]), ((0x4a) & 0xFF))) & ENAB400x08) != 0 |
| 2868 | && (ahd_inb(ahd, SSTAT2)(((ahd)->tags[(0x4d) >> 8])->read_1(((ahd)->bshs [(0x4d) >> 8]), ((0x4d) & 0xFF))) & EXP_ACTIVE0x10) == 0) { |
| 2869 | maxsync = AHD_SYNCRATE_PACED0x8; |
| 2870 | } else { |
| 2871 | maxsync = AHD_SYNCRATE_ULTRA0xc; |
| 2872 | /* Can't do DT related options on an SE bus */ |
| 2873 | *ppr_options &= MSG_EXT_PPR_QAS_REQ0x04; |
| 2874 | } |
| 2875 | /* |
| 2876 | * Never allow a value higher than our current goal |
| 2877 | * period otherwise we may allow a target initiated |
| 2878 | * negotiation to go above the limit as set by the |
| 2879 | * user. In the case of an initiator initiated |
| 2880 | * sync negotiation, we limit based on the user |
| 2881 | * setting. This allows the system to still accept |
| 2882 | * incoming negotiations even if target initiated |
| 2883 | * negotiation is not performed. |
| 2884 | */ |
| 2885 | if (role == ROLE_TARGET) |
| 2886 | transinfo = &tinfo->user; |
| 2887 | else |
| 2888 | transinfo = &tinfo->goal; |
| 2889 | *ppr_options &= (transinfo->ppr_options|MSG_EXT_PPR_PCOMP_EN0x80); |
| 2890 | if (transinfo->width == MSG_EXT_WDTR_BUS_8_BIT0x00) { |
| 2891 | maxsync = MAX(maxsync, AHD_SYNCRATE_ULTRA2)(((maxsync)>(0xa))?(maxsync):(0xa)); |
| 2892 | *ppr_options &= ~MSG_EXT_PPR_DT_REQ0x02; |
| 2893 | } |
| 2894 | if (transinfo->period == 0) { |
| 2895 | *period = 0; |
| 2896 | *ppr_options = 0; |
| 2897 | } else { |
| 2898 | *period = MAX(*period, transinfo->period)(((*period)>(transinfo->period))?(*period):(transinfo-> period)); |
| 2899 | ahd_find_syncrate(ahd, period, ppr_options, maxsync); |
| 2900 | } |
| 2901 | } |
| 2902 | |
| 2903 | /* |
| 2904 | * Look up the valid period to SCSIRATE conversion in our table. |
| 2905 | * Return the period and offset that should be sent to the target |
| 2906 | * if this was the beginning of an SDTR. |
| 2907 | */ |
| 2908 | void |
| 2909 | ahd_find_syncrate(struct ahd_softc *ahd, u_int *period, |
| 2910 | u_int *ppr_options, u_int maxsync) |
| 2911 | { |
| 2912 | if (*period < maxsync) |
| 2913 | *period = maxsync; |
| 2914 | |
| 2915 | if ((*ppr_options & MSG_EXT_PPR_DT_REQ0x02) != 0 |
| 2916 | && *period > AHD_SYNCRATE_MIN_DT0x19) |
| 2917 | *ppr_options &= ~MSG_EXT_PPR_DT_REQ0x02; |
| 2918 | |
| 2919 | if (*period > AHD_SYNCRATE_MIN0x60) |
| 2920 | *period = 0; |
| 2921 | |
| 2922 | /* Honor PPR option conformance rules. */ |
| 2923 | if (*period > AHD_SYNCRATE_PACED0x8) |
| 2924 | *ppr_options &= ~MSG_EXT_PPR_RTI0x40; |
| 2925 | |
| 2926 | if ((*ppr_options & MSG_EXT_PPR_IU_REQ0x01) == 0) |
| 2927 | *ppr_options &= (MSG_EXT_PPR_DT_REQ0x02|MSG_EXT_PPR_QAS_REQ0x04); |
| 2928 | |
| 2929 | if ((*ppr_options & MSG_EXT_PPR_DT_REQ0x02) == 0) |
| 2930 | *ppr_options &= MSG_EXT_PPR_QAS_REQ0x04; |
| 2931 | |
| 2932 | /* Skip all PACED only entries if IU is not available */ |
| 2933 | if ((*ppr_options & MSG_EXT_PPR_IU_REQ0x01) == 0 |
| 2934 | && *period < AHD_SYNCRATE_DT0x9) |
| 2935 | *period = AHD_SYNCRATE_DT0x9; |
| 2936 | |
| 2937 | /* Skip all DT only entries if DT is not available */ |
| 2938 | if ((*ppr_options & MSG_EXT_PPR_DT_REQ0x02) == 0 |
| 2939 | && *period < AHD_SYNCRATE_ULTRA20xa) |
| 2940 | *period = AHD_SYNCRATE_ULTRA20xa; |
| 2941 | } |
| 2942 | |
| 2943 | /* |
| 2944 | * Truncate the given synchronous offset to a value the |
| 2945 | * current adapter type and syncrate are capable of. |
| 2946 | */ |
| 2947 | void |
| 2948 | ahd_validate_offset(struct ahd_softc *ahd, |
| 2949 | struct ahd_initiator_tinfo *tinfo, |
| 2950 | u_int period, u_int *offset, int wide, |
| 2951 | role_t role) |
| 2952 | { |
| 2953 | u_int maxoffset; |
| 2954 | |
| 2955 | /* Limit offset to what we can do */ |
| 2956 | if (period == 0) |
| 2957 | maxoffset = 0; |
| 2958 | else if (period <= AHD_SYNCRATE_PACED0x8) { |
| 2959 | if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) |
| 2960 | maxoffset = MAX_OFFSET_PACED_BUG0x7f; |
| 2961 | else |
| 2962 | maxoffset = MAX_OFFSET_PACED0xfe; |
| 2963 | } else |
| 2964 | maxoffset = MAX_OFFSET_NON_PACED0x7f; |
| 2965 | *offset = MIN(*offset, maxoffset)(((*offset)<(maxoffset))?(*offset):(maxoffset)); |
| 2966 | if (tinfo != NULL((void *)0)) { |
| 2967 | if (role == ROLE_TARGET) |
| 2968 | *offset = MIN(*offset, tinfo->user.offset)(((*offset)<(tinfo->user.offset))?(*offset):(tinfo-> user.offset)); |
| 2969 | else |
| 2970 | *offset = MIN(*offset, tinfo->goal.offset)(((*offset)<(tinfo->goal.offset))?(*offset):(tinfo-> goal.offset)); |
| 2971 | } |
| 2972 | } |
| 2973 | |
| 2974 | /* |
| 2975 | * Truncate the given transfer width parameter to a value the |
| 2976 | * current adapter type is capable of. |
| 2977 | */ |
| 2978 | void |
| 2979 | ahd_validate_width(struct ahd_softc *ahd, struct ahd_initiator_tinfo *tinfo, |
| 2980 | u_int *bus_width, role_t role) |
| 2981 | { |
| 2982 | switch (*bus_width) { |
| 2983 | default: |
| 2984 | if (ahd->features & AHD_WIDE) { |
| 2985 | /* Respond Wide */ |
| 2986 | *bus_width = MSG_EXT_WDTR_BUS_16_BIT0x01; |
| 2987 | break; |
| 2988 | } |
| 2989 | /* FALLTHROUGH */ |
| 2990 | case MSG_EXT_WDTR_BUS_8_BIT0x00: |
| 2991 | *bus_width = MSG_EXT_WDTR_BUS_8_BIT0x00; |
| 2992 | break; |
| 2993 | } |
| 2994 | if (tinfo != NULL((void *)0)) { |
| 2995 | if (role == ROLE_TARGET) |
| 2996 | *bus_width = MIN(tinfo->user.width, *bus_width)(((tinfo->user.width)<(*bus_width))?(tinfo->user.width ):(*bus_width)); |
| 2997 | else |
| 2998 | *bus_width = MIN(tinfo->goal.width, *bus_width)(((tinfo->goal.width)<(*bus_width))?(tinfo->goal.width ):(*bus_width)); |
| 2999 | } |
| 3000 | } |
| 3001 | |
| 3002 | /* |
| 3003 | * Update the bitmask of targets for which the controller should |
| 3004 | * negotiate with at the next convenient opportunity. This currently |
| 3005 | * means the next time we send the initial identify messages for |
| 3006 | * a new transaction. |
| 3007 | */ |
| 3008 | int |
| 3009 | ahd_update_neg_request(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3010 | struct ahd_tmode_tstate *tstate, |
| 3011 | struct ahd_initiator_tinfo *tinfo, ahd_neg_type neg_type) |
| 3012 | { |
| 3013 | u_int auto_negotiate_orig; |
| 3014 | |
| 3015 | auto_negotiate_orig = tstate->auto_negotiate; |
| 3016 | if (neg_type == AHD_NEG_ALWAYS) { |
| 3017 | /* |
| 3018 | * Force our "current" settings to be |
| 3019 | * unknown so that unless a bus reset |
| 3020 | * occurs the need to renegotiate is |
| 3021 | * recorded persistently. |
| 3022 | */ |
| 3023 | if ((ahd->features & AHD_WIDE) != 0) |
| 3024 | tinfo->curr.width = AHD_WIDTH_UNKNOWN0xFF; |
| 3025 | tinfo->curr.period = AHD_PERIOD_UNKNOWN0xFF; |
| 3026 | tinfo->curr.offset = AHD_OFFSET_UNKNOWN0xFF; |
| 3027 | } |
| 3028 | if (tinfo->curr.period != tinfo->goal.period |
| 3029 | || tinfo->curr.width != tinfo->goal.width |
| 3030 | || tinfo->curr.offset != tinfo->goal.offset |
| 3031 | || tinfo->curr.ppr_options != tinfo->goal.ppr_options |
| 3032 | || (neg_type == AHD_NEG_IF_NON_ASYNC |
| 3033 | && (tinfo->goal.offset != 0 |
| 3034 | || tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT0x00 |
| 3035 | || tinfo->goal.ppr_options != 0))) |
| 3036 | tstate->auto_negotiate |= devinfo->target_mask; |
| 3037 | else |
| 3038 | tstate->auto_negotiate &= ~devinfo->target_mask; |
| 3039 | |
| 3040 | return (auto_negotiate_orig != tstate->auto_negotiate); |
| 3041 | } |
| 3042 | |
| 3043 | /* |
| 3044 | * Update the user/goal/curr tables of synchronous negotiation |
| 3045 | * parameters as well as, in the case of a current or active update, |
| 3046 | * any data structures on the host controller. In the case of an |
| 3047 | * active update, the specified target is currently talking to us on |
| 3048 | * the bus, so the transfer parameter update must take effect |
| 3049 | * immediately. |
| 3050 | */ |
| 3051 | void |
| 3052 | ahd_set_syncrate(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3053 | u_int period, u_int offset, u_int ppr_options, |
| 3054 | u_int type, int paused) |
| 3055 | { |
| 3056 | struct ahd_initiator_tinfo *tinfo; |
| 3057 | struct ahd_tmode_tstate *tstate; |
| 3058 | u_int old_period; |
| 3059 | u_int old_offset; |
| 3060 | u_int old_ppr; |
| 3061 | int active; |
| 3062 | int update_needed; |
| 3063 | |
| 3064 | active = (type & AHD_TRANS_ACTIVE0x03) == AHD_TRANS_ACTIVE0x03; |
| 3065 | update_needed = 0; |
| 3066 | |
| 3067 | if (period == 0 || offset == 0) { |
| 3068 | period = 0; |
| 3069 | offset = 0; |
| 3070 | } |
| 3071 | |
| 3072 | tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid, |
| 3073 | devinfo->target, &tstate); |
| 3074 | |
| 3075 | if ((type & AHD_TRANS_USER0x08) != 0) { |
| 3076 | tinfo->user.period = period; |
| 3077 | tinfo->user.offset = offset; |
| 3078 | tinfo->user.ppr_options = ppr_options; |
| 3079 | } |
| 3080 | |
| 3081 | if ((type & AHD_TRANS_GOAL0x04) != 0) { |
| 3082 | tinfo->goal.period = period; |
| 3083 | tinfo->goal.offset = offset; |
| 3084 | tinfo->goal.ppr_options = ppr_options; |
| 3085 | } |
| 3086 | |
| 3087 | old_period = tinfo->curr.period; |
| 3088 | old_offset = tinfo->curr.offset; |
| 3089 | old_ppr = tinfo->curr.ppr_options; |
| 3090 | |
| 3091 | if ((type & AHD_TRANS_CUR0x01) != 0 |
| 3092 | && (old_period != period |
| 3093 | || old_offset != offset |
| 3094 | || old_ppr != ppr_options)) { |
| 3095 | |
| 3096 | update_needed++; |
| 3097 | |
| 3098 | tinfo->curr.period = period; |
| 3099 | tinfo->curr.offset = offset; |
| 3100 | tinfo->curr.ppr_options = ppr_options; |
| 3101 | #if 0 |
| 3102 | ahd_send_async(ahd, devinfo->channel, devinfo->target, |
| 3103 | CAM_LUN_WILDCARD-1, AC_TRANSFER_NEG, NULL((void *)0)); |
| 3104 | #endif |
| 3105 | if (1 /*bootverbose*/) { |
| 3106 | if (offset != 0) { |
| 3107 | int options; |
| 3108 | |
| 3109 | printf("%s: target %d synchronous with " |
| 3110 | "period = 0x%x, offset = 0x%x", |
| 3111 | ahd_name(ahd), devinfo->target, |
| 3112 | period, offset); |
| 3113 | options = 0; |
| 3114 | if ((ppr_options & MSG_EXT_PPR_RD_STRM0x20) != 0) { |
| 3115 | printf("(RDSTRM"); |
| 3116 | options++; |
| 3117 | } |
| 3118 | if ((ppr_options & MSG_EXT_PPR_DT_REQ0x02) != 0) { |
| 3119 | printf("%s", options ? "|DT" : "(DT"); |
| 3120 | options++; |
| 3121 | } |
| 3122 | if ((ppr_options & MSG_EXT_PPR_IU_REQ0x01) != 0) { |
| 3123 | printf("%s", options ? "|IU" : "(IU"); |
| 3124 | options++; |
| 3125 | } |
| 3126 | if ((ppr_options & MSG_EXT_PPR_RTI0x40) != 0) { |
| 3127 | printf("%s", options ? "|RTI" : "(RTI"); |
| 3128 | options++; |
| 3129 | } |
| 3130 | if ((ppr_options & MSG_EXT_PPR_QAS_REQ0x04) != 0) { |
| 3131 | printf("%s", options ? "|QAS" : "(QAS"); |
| 3132 | options++; |
| 3133 | } |
| 3134 | if (options != 0) |
| 3135 | printf(")\n"); |
| 3136 | else |
| 3137 | printf("\n"); |
| 3138 | } else { |
| 3139 | printf("%s: target %d using " |
| 3140 | "asynchronous transfers%s\n", |
| 3141 | ahd_name(ahd), devinfo->target, |
| 3142 | (ppr_options & MSG_EXT_PPR_QAS_REQ0x04) != 0 |
| 3143 | ? "(QAS)" : ""); |
| 3144 | } |
| 3145 | } |
| 3146 | } |
| 3147 | /* |
| 3148 | * Always refresh the neg-table to handle the case of the |
| 3149 | * sequencer setting the ENATNO bit for a MK_MESSAGE request. |
| 3150 | * We will always renegotiate in that case if this is a |
| 3151 | * packetized request. Also manage the busfree expected flag |
| 3152 | * from this common routine so that we catch changes due to |
| 3153 | * WDTR or SDTR messages. |
| 3154 | */ |
| 3155 | if ((type & AHD_TRANS_CUR0x01) != 0) { |
| 3156 | if (!paused) |
| 3157 | ahd_pause(ahd); |
| 3158 | ahd_update_neg_table(ahd, devinfo, &tinfo->curr); |
| 3159 | if (!paused) |
| 3160 | ahd_unpause(ahd); |
| 3161 | if (ahd->msg_type != MSG_TYPE_NONE) { |
| 3162 | if ((old_ppr & MSG_EXT_PPR_IU_REQ0x01) |
| 3163 | != (ppr_options & MSG_EXT_PPR_IU_REQ0x01)) { |
| 3164 | #ifdef AHD_DEBUG |
| 3165 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 3166 | ahd_print_devinfo(ahd, devinfo); |
| 3167 | printf("Expecting IU Change busfree\n"); |
| 3168 | } |
| 3169 | #endif |
| 3170 | ahd->msg_flags |= MSG_FLAG_EXPECT_PPR_BUSFREE |
| 3171 | | MSG_FLAG_IU_REQ_CHANGED; |
| 3172 | } |
| 3173 | if ((old_ppr & MSG_EXT_PPR_IU_REQ0x01) != 0) { |
| 3174 | #ifdef AHD_DEBUG |
| 3175 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 3176 | printf("PPR with IU_REQ outstanding\n"); |
| 3177 | #endif |
| 3178 | ahd->msg_flags |= MSG_FLAG_EXPECT_PPR_BUSFREE; |
| 3179 | } |
| 3180 | } |
| 3181 | } |
| 3182 | |
| 3183 | update_needed += ahd_update_neg_request(ahd, devinfo, tstate, |
| 3184 | tinfo, AHD_NEG_TO_GOAL); |
| 3185 | |
| 3186 | if (update_needed && active) |
| 3187 | ahd_update_pending_scbs(ahd); |
| 3188 | } |
| 3189 | |
| 3190 | /* |
| 3191 | * Update the user/goal/curr tables of wide negotiation |
| 3192 | * parameters as well as, in the case of a current or active update, |
| 3193 | * any data structures on the host controller. In the case of an |
| 3194 | * active update, the specified target is currently talking to us on |
| 3195 | * the bus, so the transfer parameter update must take effect |
| 3196 | * immediately. |
| 3197 | */ |
| 3198 | void |
| 3199 | ahd_set_width(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3200 | u_int width, u_int type, int paused) |
| 3201 | { |
| 3202 | struct ahd_initiator_tinfo *tinfo; |
| 3203 | struct ahd_tmode_tstate *tstate; |
| 3204 | u_int oldwidth; |
| 3205 | int active; |
| 3206 | int update_needed; |
| 3207 | |
| 3208 | active = (type & AHD_TRANS_ACTIVE0x03) == AHD_TRANS_ACTIVE0x03; |
| 3209 | update_needed = 0; |
| 3210 | tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid, |
| 3211 | devinfo->target, &tstate); |
| 3212 | |
| 3213 | if ((type & AHD_TRANS_USER0x08) != 0) |
| 3214 | tinfo->user.width = width; |
| 3215 | |
| 3216 | if ((type & AHD_TRANS_GOAL0x04) != 0) |
| 3217 | tinfo->goal.width = width; |
| 3218 | |
| 3219 | oldwidth = tinfo->curr.width; |
| 3220 | if ((type & AHD_TRANS_CUR0x01) != 0 && oldwidth != width) { |
| 3221 | |
| 3222 | update_needed++; |
| 3223 | |
| 3224 | tinfo->curr.width = width; |
| 3225 | #if 0 |
| 3226 | ahd_send_async(ahd, devinfo->channel, devinfo->target, |
| 3227 | CAM_LUN_WILDCARD-1, AC_TRANSFER_NEG, NULL((void *)0)); |
| 3228 | #endif |
| 3229 | if (bootverbose0) { |
| 3230 | printf("%s: target %d using %dbit transfers\n", |
| 3231 | ahd_name(ahd), devinfo->target, |
| 3232 | 8 * (0x01 << width)); |
| 3233 | } |
| 3234 | } |
| 3235 | |
| 3236 | if ((type & AHD_TRANS_CUR0x01) != 0) { |
| 3237 | if (!paused) |
| 3238 | ahd_pause(ahd); |
| 3239 | ahd_update_neg_table(ahd, devinfo, &tinfo->curr); |
| 3240 | if (!paused) |
| 3241 | ahd_unpause(ahd); |
| 3242 | } |
| 3243 | |
| 3244 | update_needed += ahd_update_neg_request(ahd, devinfo, tstate, |
| 3245 | tinfo, AHD_NEG_TO_GOAL); |
| 3246 | if (update_needed && active) |
| 3247 | ahd_update_pending_scbs(ahd); |
| 3248 | |
| 3249 | } |
| 3250 | |
| 3251 | /* |
| 3252 | * Update the current state of tagged queuing for a given target. |
| 3253 | */ |
| 3254 | void |
| 3255 | ahd_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3256 | ahd_queue_alg alg) |
| 3257 | { |
| 3258 | ahd_platform_set_tags(ahd, devinfo, alg); |
| 3259 | #if 0 |
| 3260 | ahd_send_async(ahd, devinfo->channel, devinfo->target, |
| 3261 | devinfo->lun, AC_TRANSFER_NEG, &alg); |
| 3262 | #endif |
| 3263 | } |
| 3264 | |
| 3265 | void |
| 3266 | ahd_update_neg_table(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3267 | struct ahd_transinfo *tinfo) |
| 3268 | { |
| 3269 | ahd_mode_state saved_modes; |
| 3270 | u_int period; |
| 3271 | u_int ppr_opts; |
| 3272 | u_int con_opts; |
| 3273 | u_int offset; |
| 3274 | u_int saved_negoaddr; |
| 3275 | uint8_t iocell_opts[sizeof(ahd->iocell_opts)]; |
| 3276 | |
| 3277 | saved_modes = ahd_save_modes(ahd); |
| 3278 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 3279 | |
| 3280 | saved_negoaddr = ahd_inb(ahd, NEGOADDR)(((ahd)->tags[(0x60) >> 8])->read_1(((ahd)->bshs [(0x60) >> 8]), ((0x60) & 0xFF))); |
| 3281 | ahd_outb(ahd, NEGOADDR, devinfo->target)(((ahd)->tags[(0x60) >> 8])->write_1(((ahd)->bshs [(0x60) >> 8]), ((0x60) & 0xFF), (devinfo->target ))); |
| 3282 | period = tinfo->period; |
| 3283 | offset = tinfo->offset; |
| 3284 | memcpy(iocell_opts, ahd->iocell_opts, sizeof(ahd->iocell_opts))__builtin_memcpy((iocell_opts), (ahd->iocell_opts), (sizeof (ahd->iocell_opts))); |
| 3285 | ppr_opts = tinfo->ppr_options & (MSG_EXT_PPR_QAS_REQ0x04|MSG_EXT_PPR_DT_REQ0x02 |
| 3286 | |MSG_EXT_PPR_IU_REQ0x01|MSG_EXT_PPR_RTI0x40); |
| 3287 | con_opts = 0; |
| 3288 | if (period == 0) |
| 3289 | period = AHD_SYNCRATE_ASYNC0xFF; |
| 3290 | if (period == AHD_SYNCRATE_1600x8) { |
| 3291 | |
| 3292 | if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) { |
| 3293 | /* |
| 3294 | * When the SPI4 spec was finalized, PACE transfers |
| 3295 | * was not made a configurable option in the PPR |
| 3296 | * message. Instead it is assumed to be enabled for |
| 3297 | * any syncrate faster than 80MHz. Nevertheless, |
| 3298 | * Harpoon2A4 allows this to be configurable. |
| 3299 | * |
| 3300 | * Harpoon2A4 also assumes at most 2 data bytes per |
| 3301 | * negotiated REQ/ACK offset. Paced transfers take |
| 3302 | * 4, so we must adjust our offset. |
| 3303 | */ |
| 3304 | ppr_opts |= PPROPT_PACE0x08; |
| 3305 | offset *= 2; |
| 3306 | |
| 3307 | /* |
| 3308 | * Harpoon2A assumed that there would be a |
| 3309 | * fallback rate between 160MHz and 80MHz, |
| 3310 | * so 7 is used as the period factor rather |
| 3311 | * than 8 for 160MHz. |
| 3312 | */ |
| 3313 | period = AHD_SYNCRATE_REVA_1600x7; |
| 3314 | } |
| 3315 | if ((tinfo->ppr_options & MSG_EXT_PPR_PCOMP_EN0x80) == 0) |
| 3316 | iocell_opts[AHD_PRECOMP_SLEW_INDEX(0x04 - 0x04)] &= |
| 3317 | ~AHD_PRECOMP_MASK0x07; |
| 3318 | } else { |
| 3319 | /* |
| 3320 | * Precomp should be disabled for non-paced transfers. |
| 3321 | */ |
| 3322 | iocell_opts[AHD_PRECOMP_SLEW_INDEX(0x04 - 0x04)] &= ~AHD_PRECOMP_MASK0x07; |
| 3323 | |
| 3324 | if ((ahd->features & AHD_NEW_IOCELL_OPTS) != 0 |
| 3325 | && (ppr_opts & MSG_EXT_PPR_DT_REQ0x02) != 0 |
| 3326 | && (ppr_opts & MSG_EXT_PPR_IU_REQ0x01) == 0) { |
| 3327 | /* |
| 3328 | * Slow down our CRC interval to be |
| 3329 | * compatible with non-packetized |
| 3330 | * U160 devices that can't handle a |
| 3331 | * CRC at full speed. |
| 3332 | */ |
| 3333 | con_opts |= ENSLOWCRC0x08; |
| 3334 | } |
| 3335 | |
| 3336 | if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) { |
| 3337 | /* |
| 3338 | * On H2A4, revert to a slower slewrate |
| 3339 | * on non-paced transfers. |
| 3340 | */ |
| 3341 | iocell_opts[AHD_PRECOMP_SLEW_INDEX(0x04 - 0x04)] &= |
| 3342 | ~AHD_SLEWRATE_MASK0x78; |
| 3343 | } |
| 3344 | } |
| 3345 | |
| 3346 | ahd_outb(ahd, ANNEXCOL, AHD_ANNEXCOL_PRECOMP_SLEW)(((ahd)->tags[(0x65) >> 8])->write_1(((ahd)->bshs [(0x65) >> 8]), ((0x65) & 0xFF), (0x04))); |
| 3347 | ahd_outb(ahd, ANNEXDAT, iocell_opts[AHD_PRECOMP_SLEW_INDEX])(((ahd)->tags[(0x66) >> 8])->write_1(((ahd)->bshs [(0x66) >> 8]), ((0x66) & 0xFF), (iocell_opts[(0x04 - 0x04)]))); |
| 3348 | ahd_outb(ahd, ANNEXCOL, AHD_ANNEXCOL_AMPLITUDE)(((ahd)->tags[(0x65) >> 8])->write_1(((ahd)->bshs [(0x65) >> 8]), ((0x65) & 0xFF), (0x06))); |
| 3349 | ahd_outb(ahd, ANNEXDAT, iocell_opts[AHD_AMPLITUDE_INDEX])(((ahd)->tags[(0x66) >> 8])->write_1(((ahd)->bshs [(0x66) >> 8]), ((0x66) & 0xFF), (iocell_opts[(0x06 - 0x04)]))); |
| 3350 | |
| 3351 | ahd_outb(ahd, NEGPERIOD, period)(((ahd)->tags[(0x61) >> 8])->write_1(((ahd)->bshs [(0x61) >> 8]), ((0x61) & 0xFF), (period))); |
| 3352 | ahd_outb(ahd, NEGPPROPTS, ppr_opts)(((ahd)->tags[(0x63) >> 8])->write_1(((ahd)->bshs [(0x63) >> 8]), ((0x63) & 0xFF), (ppr_opts))); |
| 3353 | ahd_outb(ahd, NEGOFFSET, offset)(((ahd)->tags[(0x62) >> 8])->write_1(((ahd)->bshs [(0x62) >> 8]), ((0x62) & 0xFF), (offset))); |
| 3354 | |
| 3355 | if (tinfo->width == MSG_EXT_WDTR_BUS_16_BIT0x01) |
| 3356 | con_opts |= WIDEXFER0x01; |
| 3357 | |
| 3358 | /* |
| 3359 | * During packetized transfers, the target will |
| 3360 | * give us the opportunity to send command packets |
| 3361 | * without us asserting attention. |
| 3362 | */ |
| 3363 | if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ0x01) == 0) |
| 3364 | con_opts |= ENAUTOATNO0x02; |
| 3365 | ahd_outb(ahd, NEGCONOPTS, con_opts)(((ahd)->tags[(0x64) >> 8])->write_1(((ahd)->bshs [(0x64) >> 8]), ((0x64) & 0xFF), (con_opts))); |
| 3366 | ahd_outb(ahd, NEGOADDR, saved_negoaddr)(((ahd)->tags[(0x60) >> 8])->write_1(((ahd)->bshs [(0x60) >> 8]), ((0x60) & 0xFF), (saved_negoaddr))); |
| 3367 | ahd_restore_modes(ahd, saved_modes); |
| 3368 | } |
| 3369 | |
| 3370 | /* |
| 3371 | * When the transfer settings for a connection change, setup for |
| 3372 | * negotiation in pending SCBs to effect the change as quickly as |
| 3373 | * possible. We also cancel any negotiations that are scheduled |
| 3374 | * for inflight SCBs that have not been started yet. |
| 3375 | */ |
| 3376 | void |
| 3377 | ahd_update_pending_scbs(struct ahd_softc *ahd) |
| 3378 | { |
| 3379 | struct scb *pending_scb; |
| 3380 | int pending_scb_count; |
| 3381 | int paused; |
| 3382 | u_int saved_scbptr; |
| 3383 | ahd_mode_state saved_modes; |
| 3384 | |
| 3385 | /* |
| 3386 | * Traverse the pending SCB list and ensure that all of the |
| 3387 | * SCBs there have the proper settings. We can only safely |
| 3388 | * clear the negotiation required flag (setting requires the |
| 3389 | * execution queue to be modified) and this is only possible |
| 3390 | * if we are not already attempting to select out for this |
| 3391 | * SCB. For this reason, all callers only call this routine |
| 3392 | * if we are changing the negotiation settings for the currently |
| 3393 | * active transaction on the bus. |
| 3394 | */ |
| 3395 | pending_scb_count = 0; |
| 3396 | TAILQ_FOREACH(pending_scb, &ahd->pending_scbs, next)for((pending_scb) = ((&ahd->pending_scbs)->tqh_first ); (pending_scb) != ((void *)0); (pending_scb) = ((pending_scb )->next.tqe_next)) { |
| 3397 | struct ahd_devinfo devinfo; |
| 3398 | struct ahd_initiator_tinfo *tinfo; |
| 3399 | struct ahd_tmode_tstate *tstate; |
| 3400 | |
| 3401 | ahd_scb_devinfo(ahd, &devinfo, pending_scb); |
| 3402 | tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, |
| 3403 | devinfo.our_scsiid, |
| 3404 | devinfo.target, &tstate); |
| 3405 | if ((tstate->auto_negotiate & devinfo.target_mask) == 0 |
| 3406 | && (pending_scb->flags & SCB_AUTO_NEGOTIATE) != 0) { |
| 3407 | pending_scb->flags &= ~SCB_AUTO_NEGOTIATE; |
| 3408 | pending_scb->hscb->control &= ~MK_MESSAGE0x10; |
| 3409 | } |
| 3410 | ahd_sync_scb(ahd, pending_scb, |
| 3411 | BUS_DMASYNC_PREREAD0x01|BUS_DMASYNC_PREWRITE0x04); |
| 3412 | pending_scb_count++; |
| 3413 | } |
| 3414 | |
| 3415 | if (pending_scb_count == 0) |
| 3416 | return; |
| 3417 | |
| 3418 | if (ahd_is_paused(ahd)) { |
| 3419 | paused = 1; |
| 3420 | } else { |
| 3421 | paused = 0; |
| 3422 | ahd_pause(ahd); |
| 3423 | } |
| 3424 | |
| 3425 | /* |
| 3426 | * Force the sequencer to reinitialize the selection for |
| 3427 | * the command at the head of the execution queue if it |
| 3428 | * has already been setup. The negotiation changes may |
| 3429 | * effect whether we select-out with ATN. It is only |
| 3430 | * safe to clear ENSELO when the bus is not free and no |
| 3431 | * selection is in progress or completed. |
| 3432 | */ |
| 3433 | saved_modes = ahd_save_modes(ahd); |
| 3434 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 3435 | if ((ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & BSYI0x04) != 0 |
| 3436 | && (ahd_inb(ahd, SSTAT0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))) & (SELDO0x40|SELINGO0x10)) == 0) |
| 3437 | ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), ((((ahd)->tags[ (0x3a) >> 8])->read_1(((ahd)->bshs[(0x3a) >> 8]), ((0x3a) & 0xFF))) & ~0x40))); |
| 3438 | saved_scbptr = ahd_get_scbptr(ahd); |
| 3439 | /* Ensure that the hscbs down on the card match the new information */ |
| 3440 | TAILQ_FOREACH(pending_scb, &ahd->pending_scbs, next)for((pending_scb) = ((&ahd->pending_scbs)->tqh_first ); (pending_scb) != ((void *)0); (pending_scb) = ((pending_scb )->next.tqe_next)) { |
| 3441 | u_int scb_tag; |
| 3442 | u_int control; |
| 3443 | |
| 3444 | scb_tag = SCB_GET_TAG(pending_scb)((__uint16_t)(pending_scb->hscb->tag)); |
| 3445 | ahd_set_scbptr(ahd, scb_tag); |
| 3446 | control = ahd_inb_scbram(ahd, SCB_CONTROL0x192); |
| 3447 | control &= ~MK_MESSAGE0x10; |
| 3448 | control |= pending_scb->hscb->control & MK_MESSAGE0x10; |
| 3449 | ahd_outb(ahd, SCB_CONTROL, control)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (control))); |
| 3450 | } |
| 3451 | ahd_set_scbptr(ahd, saved_scbptr); |
| 3452 | ahd_restore_modes(ahd, saved_modes); |
| 3453 | |
| 3454 | if (paused == 0) |
| 3455 | ahd_unpause(ahd); |
| 3456 | } |
| 3457 | |
| 3458 | /**************************** Pathing Information *****************************/ |
| 3459 | void |
| 3460 | ahd_fetch_devinfo(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 3461 | { |
| 3462 | ahd_mode_state saved_modes; |
| 3463 | u_int saved_scsiid; |
| 3464 | role_t role; |
| 3465 | int our_id; |
| 3466 | |
| 3467 | saved_modes = ahd_save_modes(ahd); |
| 3468 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 3469 | |
| 3470 | if (ahd_inb(ahd, SSTAT0)(((ahd)->tags[(0x4b) >> 8])->read_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF))) & TARGET0x80) |
| 3471 | role = ROLE_TARGET; |
| 3472 | else |
| 3473 | role = ROLE_INITIATOR; |
| 3474 | |
| 3475 | if (role == ROLE_TARGET |
| 3476 | && (ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))) & CMDPHASE_PENDING0x08) != 0) { |
| 3477 | /* We were selected, so pull our id from TARGIDIN */ |
| 3478 | our_id = ahd_inb(ahd, TARGIDIN)(((ahd)->tags[(0x48) >> 8])->read_1(((ahd)->bshs [(0x48) >> 8]), ((0x48) & 0xFF))) & OID0x0f; |
| 3479 | } else if (role == ROLE_TARGET) |
| 3480 | our_id = ahd_inb(ahd, TOWNID)(((ahd)->tags[(0x69) >> 8])->read_1(((ahd)->bshs [(0x69) >> 8]), ((0x69) & 0xFF))); |
| 3481 | else |
| 3482 | our_id = ahd_inb(ahd, IOWNID)(((ahd)->tags[(0x67) >> 8])->read_1(((ahd)->bshs [(0x67) >> 8]), ((0x67) & 0xFF))); |
| 3483 | |
| 3484 | saved_scsiid = ahd_inb(ahd, SAVED_SCSIID)(((ahd)->tags[(0x13a) >> 8])->read_1(((ahd)->bshs [(0x13a) >> 8]), ((0x13a) & 0xFF))); |
| 3485 | ahd_compile_devinfo(devinfo, |
| 3486 | our_id, |
| 3487 | SCSIID_TARGET(ahd, saved_scsiid)(((saved_scsiid) & 0xf0) >> 0x04), |
| 3488 | ahd_inb(ahd, SAVED_LUN)(((ahd)->tags[(0x13b) >> 8])->read_1(((ahd)->bshs [(0x13b) >> 8]), ((0x13b) & 0xFF))), |
| 3489 | SCSIID_CHANNEL(ahd, saved_scsiid)('A'), |
| 3490 | role); |
| 3491 | ahd_restore_modes(ahd, saved_modes); |
| 3492 | } |
| 3493 | |
| 3494 | void |
| 3495 | ahd_print_devinfo(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 3496 | { |
| 3497 | printf("%s:%c:%d:%d: ", ahd_name(ahd), 'A', |
| 3498 | devinfo->target, devinfo->lun); |
| 3499 | } |
| 3500 | |
| 3501 | struct ahd_phase_table_entry* |
| 3502 | ahd_lookup_phase_entry(int phase) |
| 3503 | { |
| 3504 | struct ahd_phase_table_entry *entry; |
| 3505 | struct ahd_phase_table_entry *last_entry; |
| 3506 | |
| 3507 | /* |
| 3508 | * num_phases doesn't include the default entry which |
| 3509 | * will be returned if the phase doesn't match. |
| 3510 | */ |
| 3511 | last_entry = &ahd_phase_table[num_phases]; |
| 3512 | for (entry = ahd_phase_table; entry < last_entry; entry++) { |
| 3513 | if (phase == entry->phase) |
| 3514 | break; |
| 3515 | } |
| 3516 | return (entry); |
| 3517 | } |
| 3518 | |
| 3519 | void |
| 3520 | ahd_compile_devinfo(struct ahd_devinfo *devinfo, u_int our_id, u_int target, |
| 3521 | u_int lun, char channel, role_t role) |
| 3522 | { |
| 3523 | devinfo->our_scsiid = our_id; |
| 3524 | devinfo->target = target; |
| 3525 | devinfo->lun = lun; |
| 3526 | devinfo->target_offset = target; |
| 3527 | devinfo->channel = channel; |
| 3528 | devinfo->role = role; |
| 3529 | if (channel == 'B') |
| 3530 | devinfo->target_offset += 8; |
| 3531 | devinfo->target_mask = (0x01 << devinfo->target_offset); |
| 3532 | } |
| 3533 | |
| 3534 | void |
| 3535 | ahd_scb_devinfo(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3536 | struct scb *scb) |
| 3537 | { |
| 3538 | role_t role; |
| 3539 | int our_id; |
| 3540 | |
| 3541 | our_id = SCSIID_OUR_ID(scb->hscb->scsiid)((scb->hscb->scsiid) & 0x0f); |
| 3542 | role = ROLE_INITIATOR; |
| 3543 | if ((scb->hscb->control & TARGET_SCB0x80) != 0) |
| 3544 | role = ROLE_TARGET; |
| 3545 | ahd_compile_devinfo(devinfo, our_id, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 3546 | SCB_GET_LUN(scb)((scb)->hscb->lun), SCB_GET_CHANNEL(ahd, scb)('A'), role); |
| 3547 | } |
| 3548 | |
| 3549 | |
| 3550 | /************************ Message Phase Processing ****************************/ |
| 3551 | /* |
| 3552 | * When an initiator transaction with the MK_MESSAGE flag either reconnects |
| 3553 | * or enters the initial message out phase, we are interrupted. Fill our |
| 3554 | * outgoing message buffer with the appropriate message and begin handing |
| 3555 | * the message phase(s) manually. |
| 3556 | */ |
| 3557 | void |
| 3558 | ahd_setup_initiator_msgout(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3559 | struct scb *scb) |
| 3560 | { |
| 3561 | /* |
| 3562 | * To facilitate adding multiple messages together, |
| 3563 | * each routine should increment the index and len |
| 3564 | * variables instead of setting them explicitly. |
| 3565 | */ |
| 3566 | ahd->msgout_index = 0; |
| 3567 | ahd->msgout_len = 0; |
| 3568 | |
| 3569 | if (ahd_currently_packetized(ahd)) |
| 3570 | ahd->msg_flags |= MSG_FLAG_PACKETIZED; |
| 3571 | |
| 3572 | if (ahd->send_msg_perror |
| 3573 | && ahd_inb(ahd, MSG_OUT)(((ahd)->tags[(0x137) >> 8])->read_1(((ahd)->bshs [(0x137) >> 8]), ((0x137) & 0xFF))) == HOST_MSG0xff) { |
| 3574 | ahd->msgout_buf[ahd->msgout_index++] = ahd->send_msg_perror; |
| 3575 | ahd->msgout_len++; |
| 3576 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 3577 | #ifdef AHD_DEBUG |
| 3578 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 3579 | printf("Setting up for Parity Error delivery\n"); |
| 3580 | #endif |
| 3581 | return; |
| 3582 | } else if (scb == NULL((void *)0)) { |
| 3583 | printf("%s: WARNING. No pending message for " |
| 3584 | "I_T msgin. Issuing NO-OP\n", ahd_name(ahd)); |
| 3585 | ahd->msgout_buf[ahd->msgout_index++] = MSG_NOOP0x08; |
| 3586 | ahd->msgout_len++; |
| 3587 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 3588 | return; |
| 3589 | } |
| 3590 | |
| 3591 | if ((scb->flags & SCB_DEVICE_RESET) == 0 |
| 3592 | && (scb->flags & SCB_PACKETIZED) == 0 |
| 3593 | && ahd_inb(ahd, MSG_OUT)(((ahd)->tags[(0x137) >> 8])->read_1(((ahd)->bshs [(0x137) >> 8]), ((0x137) & 0xFF))) == MSG_IDENTIFYFLAG0x80) { |
| 3594 | u_int identify_msg; |
| 3595 | |
| 3596 | identify_msg = MSG_IDENTIFYFLAG0x80 | SCB_GET_LUN(scb)((scb)->hscb->lun); |
| 3597 | if ((scb->hscb->control & DISCENB0x40) != 0) |
| 3598 | identify_msg |= MSG_IDENTIFY_DISCFLAG0x40; |
| 3599 | ahd->msgout_buf[ahd->msgout_index++] = identify_msg; |
| 3600 | ahd->msgout_len++; |
| 3601 | |
| 3602 | if ((scb->hscb->control & TAG_ENB0x20) != 0) { |
| 3603 | ahd->msgout_buf[ahd->msgout_index++] = |
| 3604 | scb->hscb->control & (TAG_ENB0x20|SCB_TAG_TYPE0x03); |
| 3605 | ahd->msgout_buf[ahd->msgout_index++] = SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)); |
| 3606 | ahd->msgout_len += 2; |
| 3607 | } |
| 3608 | } |
| 3609 | |
| 3610 | if (scb->flags & SCB_DEVICE_RESET) { |
| 3611 | ahd->msgout_buf[ahd->msgout_index++] = MSG_BUS_DEV_RESET0x0c; |
| 3612 | ahd->msgout_len++; |
| 3613 | ahd_print_path(ahd, scb); |
| 3614 | printf("Bus Device Reset Message Sent\n"); |
| 3615 | /* |
| 3616 | * Clear our selection hardware in advance of |
| 3617 | * the busfree. We may have an entry in the waiting |
| 3618 | * Q for this target, and we don't want to go about |
| 3619 | * selecting while we handle the busfree and blow it |
| 3620 | * away. |
| 3621 | */ |
| 3622 | ahd_outb(ahd, SCSISEQ0, 0)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), (0))); |
| 3623 | } else if ((scb->flags & SCB_ABORT) != 0) { |
| 3624 | |
| 3625 | if ((scb->hscb->control & TAG_ENB0x20) != 0) { |
| 3626 | ahd->msgout_buf[ahd->msgout_index++] = MSG_ABORT_TAG0x0d; |
| 3627 | } else { |
| 3628 | ahd->msgout_buf[ahd->msgout_index++] = MSG_ABORT0x06; |
| 3629 | } |
| 3630 | ahd->msgout_len++; |
| 3631 | ahd_print_path(ahd, scb); |
| 3632 | printf("Abort%s Message Sent\n", |
| 3633 | (scb->hscb->control & TAG_ENB0x20) != 0 ? " Tag" : ""); |
| 3634 | /* |
| 3635 | * Clear our selection hardware in advance of |
| 3636 | * the busfree. We may have an entry in the waiting |
| 3637 | * Q for this target, and we don't want to go about |
| 3638 | * selecting while we handle the busfree and blow it |
| 3639 | * away. |
| 3640 | */ |
| 3641 | ahd_outb(ahd, SCSISEQ0, 0)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), (0))); |
| 3642 | } else if ((scb->flags & (SCB_AUTO_NEGOTIATE|SCB_NEGOTIATE)) != 0) { |
| 3643 | ahd_build_transfer_msg(ahd, devinfo); |
| 3644 | /* |
| 3645 | * Clear our selection hardware in advance of potential |
| 3646 | * PPR IU status change busfree. We may have an entry in |
| 3647 | * the waiting Q for this target, and we don't want to go |
| 3648 | * about selecting while we handle the busfree and blow |
| 3649 | * it away. |
| 3650 | */ |
| 3651 | ahd_outb(ahd, SCSISEQ0, 0)(((ahd)->tags[(0x3a) >> 8])->write_1(((ahd)->bshs [(0x3a) >> 8]), ((0x3a) & 0xFF), (0))); |
| 3652 | } else { |
| 3653 | printf("ahd_intr: AWAITING_MSG for an SCB that " |
| 3654 | "does not have a waiting message\n"); |
| 3655 | printf("SCSIID = %x, target_mask = %x\n", scb->hscb->scsiid, |
| 3656 | devinfo->target_mask); |
| 3657 | panic("SCB = %d, SCB Control = %x:%x, MSG_OUT = %x " |
| 3658 | "SCB flags = %x", SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)), scb->hscb->control, |
| 3659 | ahd_inb_scbram(ahd, SCB_CONTROL0x192), ahd_inb(ahd, MSG_OUT)(((ahd)->tags[(0x137) >> 8])->read_1(((ahd)->bshs [(0x137) >> 8]), ((0x137) & 0xFF))), |
| 3660 | scb->flags); |
| 3661 | } |
| 3662 | |
| 3663 | /* |
| 3664 | * Clear the MK_MESSAGE flag from the SCB so we aren't |
| 3665 | * asked to send this message again. |
| 3666 | */ |
| 3667 | ahd_outb(ahd, SCB_CONTROL,(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x10))) |
| 3668 | ahd_inb_scbram(ahd, SCB_CONTROL) & ~MK_MESSAGE)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & ~0x10))); |
| 3669 | scb->hscb->control &= ~MK_MESSAGE0x10; |
| 3670 | ahd->msgout_index = 0; |
| 3671 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 3672 | } |
| 3673 | |
| 3674 | /* |
| 3675 | * Build an appropriate transfer negotiation message for the |
| 3676 | * currently active target. |
| 3677 | */ |
| 3678 | void |
| 3679 | ahd_build_transfer_msg(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 3680 | { |
| 3681 | /* |
| 3682 | * We need to initiate transfer negotiations. |
| 3683 | * If our current and goal settings are identical, |
| 3684 | * we want to renegotiate due to a check condition. |
| 3685 | */ |
| 3686 | struct ahd_initiator_tinfo *tinfo; |
| 3687 | struct ahd_tmode_tstate *tstate; |
| 3688 | int dowide; |
| 3689 | int dosync; |
| 3690 | int doppr; |
| 3691 | u_int period; |
| 3692 | u_int ppr_options; |
| 3693 | u_int offset; |
| 3694 | |
| 3695 | tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid, |
| 3696 | devinfo->target, &tstate); |
| 3697 | /* |
| 3698 | * Filter our period based on the current connection. |
| 3699 | * If we can't perform DT transfers on this segment (not in LVD |
| 3700 | * mode for instance), then our decision to issue a PPR message |
| 3701 | * may change. |
| 3702 | */ |
| 3703 | period = tinfo->goal.period; |
| 3704 | offset = tinfo->goal.offset; |
| 3705 | ppr_options = tinfo->goal.ppr_options; |
| 3706 | /* Target initiated PPR is not allowed in the SCSI spec */ |
| 3707 | if (devinfo->role == ROLE_TARGET) |
| 3708 | ppr_options = 0; |
| 3709 | ahd_devlimited_syncrate(ahd, tinfo, &period, |
| 3710 | &ppr_options, devinfo->role); |
| 3711 | dowide = tinfo->curr.width != tinfo->goal.width; |
| 3712 | dosync = tinfo->curr.offset != offset || tinfo->curr.period != period; |
| 3713 | /* |
| 3714 | * Only use PPR if we have options that need it, even if the device |
| 3715 | * claims to support it. There might be an expander in the way |
| 3716 | * that doesn't. |
| 3717 | */ |
| 3718 | doppr = ppr_options != 0; |
| 3719 | |
| 3720 | if (!dowide && !dosync && !doppr) { |
| 3721 | dowide = tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT0x00; |
| 3722 | dosync = tinfo->goal.offset != 0; |
| 3723 | } |
| 3724 | |
| 3725 | if (!dowide && !dosync && !doppr) { |
| 3726 | /* |
| 3727 | * Force async with a WDTR message if we have a wide bus, |
| 3728 | * or just issue an SDTR with a 0 offset. |
| 3729 | */ |
| 3730 | if ((ahd->features & AHD_WIDE) != 0) |
| 3731 | dowide = 1; |
| 3732 | else |
| 3733 | dosync = 1; |
| 3734 | |
| 3735 | if (bootverbose0) { |
| 3736 | ahd_print_devinfo(ahd, devinfo); |
| 3737 | printf("Ensuring async\n"); |
| 3738 | } |
| 3739 | } |
| 3740 | /* Target initiated PPR is not allowed in the SCSI spec */ |
| 3741 | if (devinfo->role == ROLE_TARGET) |
| 3742 | doppr = 0; |
| 3743 | |
| 3744 | /* |
| 3745 | * Both the PPR message and SDTR message require the |
| 3746 | * goal syncrate to be limited to what the target device |
| 3747 | * is capable of handling (based on whether an LVD->SE |
| 3748 | * expander is on the bus), so combine these two cases. |
| 3749 | * Regardless, guarantee that if we are using WDTR and SDTR |
| 3750 | * messages that WDTR comes first. |
| 3751 | */ |
| 3752 | if (doppr || (dosync && !dowide)) { |
| 3753 | |
| 3754 | offset = tinfo->goal.offset; |
| 3755 | ahd_validate_offset(ahd, tinfo, period, &offset, |
| 3756 | doppr ? tinfo->goal.width |
| 3757 | : tinfo->curr.width, |
| 3758 | devinfo->role); |
| 3759 | if (doppr) { |
| 3760 | ahd_construct_ppr(ahd, devinfo, period, offset, |
| 3761 | tinfo->goal.width, ppr_options); |
| 3762 | } else { |
| 3763 | ahd_construct_sdtr(ahd, devinfo, period, offset); |
| 3764 | } |
| 3765 | } else { |
| 3766 | ahd_construct_wdtr(ahd, devinfo, tinfo->goal.width); |
| 3767 | } |
| 3768 | } |
| 3769 | |
| 3770 | /* |
| 3771 | * Build a synchronous negotiation message in our message |
| 3772 | * buffer based on the input parameters. |
| 3773 | */ |
| 3774 | void |
| 3775 | ahd_construct_sdtr(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3776 | u_int period, u_int offset) |
| 3777 | { |
| 3778 | if (offset == 0) |
| 3779 | period = AHD_ASYNC_XFER_PERIOD0x44; |
| 3780 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXTENDED0x01; |
| 3781 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXT_SDTR_LEN0x03; |
| 3782 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXT_SDTR0x01; |
| 3783 | ahd->msgout_buf[ahd->msgout_index++] = period; |
| 3784 | ahd->msgout_buf[ahd->msgout_index++] = offset; |
| 3785 | ahd->msgout_len += 5; |
| 3786 | if (bootverbose0) { |
| 3787 | printf("(%s:%c:%d:%d): Sending SDTR period %x, offset %x\n", |
| 3788 | ahd_name(ahd), devinfo->channel, devinfo->target, |
| 3789 | devinfo->lun, period, offset); |
| 3790 | } |
| 3791 | } |
| 3792 | |
| 3793 | /* |
| 3794 | * Build a wide negotiation message in our message |
| 3795 | * buffer based on the input parameters. |
| 3796 | */ |
| 3797 | void |
| 3798 | ahd_construct_wdtr(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3799 | u_int bus_width) |
| 3800 | { |
| 3801 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXTENDED0x01; |
| 3802 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXT_WDTR_LEN0x02; |
| 3803 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXT_WDTR0x03; |
| 3804 | ahd->msgout_buf[ahd->msgout_index++] = bus_width; |
| 3805 | ahd->msgout_len += 4; |
| 3806 | if (bootverbose0) { |
| 3807 | printf("(%s:%c:%d:%d): Sending WDTR %x\n", |
| 3808 | ahd_name(ahd), devinfo->channel, devinfo->target, |
| 3809 | devinfo->lun, bus_width); |
| 3810 | } |
| 3811 | } |
| 3812 | |
| 3813 | /* |
| 3814 | * Build a parallel protocol request message in our message |
| 3815 | * buffer based on the input parameters. |
| 3816 | */ |
| 3817 | void |
| 3818 | ahd_construct_ppr(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 3819 | u_int period, u_int offset, u_int bus_width, |
| 3820 | u_int ppr_options) |
| 3821 | { |
| 3822 | /* |
| 3823 | * Always request precompensation from |
| 3824 | * the other target if we are running |
| 3825 | * at paced syncrates. |
| 3826 | */ |
| 3827 | if (period <= AHD_SYNCRATE_PACED0x8) |
| 3828 | ppr_options |= MSG_EXT_PPR_PCOMP_EN0x80; |
| 3829 | if (offset == 0) |
| 3830 | period = AHD_ASYNC_XFER_PERIOD0x44; |
| 3831 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXTENDED0x01; |
| 3832 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXT_PPR_LEN0x06; |
| 3833 | ahd->msgout_buf[ahd->msgout_index++] = MSG_EXT_PPR0x04; |
| 3834 | ahd->msgout_buf[ahd->msgout_index++] = period; |
| 3835 | ahd->msgout_buf[ahd->msgout_index++] = 0; |
| 3836 | ahd->msgout_buf[ahd->msgout_index++] = offset; |
| 3837 | ahd->msgout_buf[ahd->msgout_index++] = bus_width; |
| 3838 | ahd->msgout_buf[ahd->msgout_index++] = ppr_options; |
| 3839 | ahd->msgout_len += 8; |
| 3840 | if (bootverbose0) { |
| 3841 | printf("(%s:%c:%d:%d): Sending PPR bus_width %x, period %x, " |
| 3842 | "offset %x, ppr_options %x\n", ahd_name(ahd), |
| 3843 | devinfo->channel, devinfo->target, devinfo->lun, |
| 3844 | bus_width, period, offset, ppr_options); |
| 3845 | } |
| 3846 | } |
| 3847 | |
| 3848 | /* |
| 3849 | * Clear any active message state. |
| 3850 | */ |
| 3851 | void |
| 3852 | ahd_clear_msg_state(struct ahd_softc *ahd) |
| 3853 | { |
| 3854 | ahd_mode_state saved_modes; |
| 3855 | |
| 3856 | saved_modes = ahd_save_modes(ahd); |
| 3857 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 3858 | ahd->send_msg_perror = 0; |
| 3859 | ahd->msg_flags = MSG_FLAG_NONE; |
| 3860 | ahd->msgout_len = 0; |
| 3861 | ahd->msgin_index = 0; |
| 3862 | ahd->msg_type = MSG_TYPE_NONE; |
| 3863 | if ((ahd_inb(ahd, SCSISIGO)(((ahd)->tags[(0x40) >> 8])->read_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF))) & ATNO0x10) != 0) { |
| 3864 | /* |
| 3865 | * The target didn't care to respond to our |
| 3866 | * message request, so clear ATN. |
| 3867 | */ |
| 3868 | ahd_outb(ahd, CLRSINT1, CLRATNO)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x40))); |
| 3869 | } |
| 3870 | ahd_outb(ahd, MSG_OUT, MSG_NOOP)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0x08))); |
| 3871 | ahd_outb(ahd, SEQ_FLAGS2,(((ahd)->tags[(0x14d) >> 8])->write_1(((ahd)-> bshs[(0x14d) >> 8]), ((0x14d) & 0xFF), ((((ahd)-> tags[(0x14d) >> 8])->read_1(((ahd)->bshs[(0x14d) >> 8]), ((0x14d) & 0xFF))) & ~0x02))) |
| 3872 | ahd_inb(ahd, SEQ_FLAGS2) & ~TARGET_MSG_PENDING)(((ahd)->tags[(0x14d) >> 8])->write_1(((ahd)-> bshs[(0x14d) >> 8]), ((0x14d) & 0xFF), ((((ahd)-> tags[(0x14d) >> 8])->read_1(((ahd)->bshs[(0x14d) >> 8]), ((0x14d) & 0xFF))) & ~0x02))); |
| 3873 | ahd_restore_modes(ahd, saved_modes); |
| 3874 | } |
| 3875 | |
| 3876 | /* |
| 3877 | * Manual message loop handler. |
| 3878 | */ |
| 3879 | void |
| 3880 | ahd_handle_message_phase(struct ahd_softc *ahd) |
| 3881 | { |
| 3882 | struct ahd_devinfo devinfo; |
| 3883 | u_int bus_phase; |
| 3884 | int end_session; |
| 3885 | |
| 3886 | ahd_fetch_devinfo(ahd, &devinfo); |
| 3887 | end_session = FALSE0; |
| 3888 | bus_phase = ahd_inb(ahd, LASTPHASE)(((ahd)->tags[(0x13c) >> 8])->read_1(((ahd)->bshs [(0x13c) >> 8]), ((0x13c) & 0xFF))); |
| 3889 | |
| 3890 | if ((ahd_inb(ahd, LQISTAT2)(((ahd)->tags[(0x52) >> 8])->read_1(((ahd)->bshs [(0x52) >> 8]), ((0x52) & 0xFF))) & LQIPHASE_OUTPKT0x40) != 0) { |
| 3891 | printf("LQIRETRY for LQIPHASE_OUTPKT\n"); |
| 3892 | ahd_outb(ahd, LQCTL2, LQIRETRY)(((ahd)->tags[(0x39) >> 8])->write_1(((ahd)->bshs [(0x39) >> 8]), ((0x39) & 0xFF), (0x80))); |
| 3893 | } |
| 3894 | reswitch: |
| 3895 | switch (ahd->msg_type) { |
| 3896 | case MSG_TYPE_INITIATOR_MSGOUT: |
| 3897 | { |
| 3898 | int lastbyte; |
| 3899 | int phasemis; |
| 3900 | int msgdone; |
| 3901 | |
| 3902 | if (ahd->msgout_len == 0 && ahd->send_msg_perror == 0) |
| 3903 | panic("HOST_MSG_LOOP interrupt with no active message"); |
| 3904 | |
| 3905 | #ifdef AHD_DEBUG |
| 3906 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 3907 | ahd_print_devinfo(ahd, &devinfo); |
| 3908 | printf("INITIATOR_MSG_OUT"); |
| 3909 | } |
| 3910 | #endif |
| 3911 | phasemis = bus_phase != P_MESGOUT0xa0; |
| 3912 | if (phasemis) { |
| 3913 | #ifdef AHD_DEBUG |
| 3914 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 3915 | printf(" PHASEMIS %s\n", |
| 3916 | ahd_lookup_phase_entry(bus_phase) |
| 3917 | ->phasemsg); |
| 3918 | } |
| 3919 | #endif |
| 3920 | if (bus_phase == P_MESGIN0xe0) { |
| 3921 | /* |
| 3922 | * Change gears and see if |
| 3923 | * this messages is of interest to |
| 3924 | * us or should be passed back to |
| 3925 | * the sequencer. |
| 3926 | */ |
| 3927 | ahd_outb(ahd, CLRSINT1, CLRATNO)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x40))); |
| 3928 | ahd->send_msg_perror = 0; |
| 3929 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGIN; |
| 3930 | ahd->msgin_index = 0; |
| 3931 | goto reswitch; |
| 3932 | } |
| 3933 | end_session = TRUE1; |
| 3934 | break; |
| 3935 | } |
| 3936 | |
| 3937 | if (ahd->send_msg_perror) { |
| 3938 | ahd_outb(ahd, CLRSINT1, CLRATNO)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x40))); |
| 3939 | ahd_outb(ahd, CLRSINT1, CLRREQINIT)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x01))); |
| 3940 | #ifdef AHD_DEBUG |
| 3941 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 3942 | printf(" byte 0x%x\n", ahd->send_msg_perror); |
| 3943 | #endif |
| 3944 | /* |
| 3945 | * If we are notifying the target of a CRC error |
| 3946 | * during packetized operations, the target is |
| 3947 | * within its rights to acknowledge our message |
| 3948 | * with a busfree. |
| 3949 | */ |
| 3950 | if ((ahd->msg_flags & MSG_FLAG_PACKETIZED) != 0 |
| 3951 | && ahd->send_msg_perror == MSG_INITIATOR_DET_ERR0x05) |
| 3952 | ahd->msg_flags |= MSG_FLAG_EXPECT_IDE_BUSFREE; |
| 3953 | |
| 3954 | ahd_outb(ahd, RETURN_2, ahd->send_msg_perror)(((ahd)->tags[(0x149) >> 8])->write_1(((ahd)-> bshs[(0x149) >> 8]), ((0x149) & 0xFF), (ahd->send_msg_perror ))); |
| 3955 | ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_WRITE)(((ahd)->tags[(0x148) >> 8])->write_1(((ahd)-> bshs[(0x148) >> 8]), ((0x148) & 0xFF), (0x04))); |
| 3956 | break; |
| 3957 | } |
| 3958 | |
| 3959 | msgdone = ahd->msgout_index == ahd->msgout_len; |
| 3960 | if (msgdone) { |
| 3961 | /* |
| 3962 | * The target has requested a retry. |
| 3963 | * Re-assert ATN, reset our message index to |
| 3964 | * 0, and try again. |
| 3965 | */ |
| 3966 | ahd->msgout_index = 0; |
| 3967 | ahd_assert_atn(ahd); |
| 3968 | } |
| 3969 | |
| 3970 | lastbyte = ahd->msgout_index == (ahd->msgout_len - 1); |
| 3971 | if (lastbyte) { |
| 3972 | /* Last byte is signified by dropping ATN */ |
| 3973 | ahd_outb(ahd, CLRSINT1, CLRATNO)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x40))); |
| 3974 | } |
| 3975 | |
| 3976 | /* |
| 3977 | * Clear our interrupt status and present |
| 3978 | * the next byte on the bus. |
| 3979 | */ |
| 3980 | ahd_outb(ahd, CLRSINT1, CLRREQINIT)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x01))); |
| 3981 | #ifdef AHD_DEBUG |
| 3982 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 3983 | printf(" byte 0x%x\n", |
| 3984 | ahd->msgout_buf[ahd->msgout_index]); |
| 3985 | #endif |
| 3986 | ahd_outb(ahd, RETURN_2, ahd->msgout_buf[ahd->msgout_index++])(((ahd)->tags[(0x149) >> 8])->write_1(((ahd)-> bshs[(0x149) >> 8]), ((0x149) & 0xFF), (ahd->msgout_buf [ahd->msgout_index++]))); |
| 3987 | ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_WRITE)(((ahd)->tags[(0x148) >> 8])->write_1(((ahd)-> bshs[(0x148) >> 8]), ((0x148) & 0xFF), (0x04))); |
| 3988 | break; |
| 3989 | } |
| 3990 | case MSG_TYPE_INITIATOR_MSGIN: |
| 3991 | { |
| 3992 | int phasemis; |
| 3993 | int message_done; |
| 3994 | |
| 3995 | #ifdef AHD_DEBUG |
| 3996 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 3997 | ahd_print_devinfo(ahd, &devinfo); |
| 3998 | printf("INITIATOR_MSG_IN"); |
| 3999 | } |
| 4000 | #endif |
| 4001 | phasemis = bus_phase != P_MESGIN0xe0; |
| 4002 | if (phasemis) { |
| 4003 | #ifdef AHD_DEBUG |
| 4004 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 4005 | printf(" PHASEMIS %s\n", |
| 4006 | ahd_lookup_phase_entry(bus_phase) |
| 4007 | ->phasemsg); |
| 4008 | } |
| 4009 | #endif |
| 4010 | ahd->msgin_index = 0; |
| 4011 | if (bus_phase == P_MESGOUT0xa0 |
| 4012 | && (ahd->send_msg_perror != 0 |
| 4013 | || (ahd->msgout_len != 0 |
| 4014 | && ahd->msgout_index == 0))) { |
| 4015 | ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT; |
| 4016 | goto reswitch; |
| 4017 | } |
| 4018 | end_session = TRUE1; |
| 4019 | break; |
| 4020 | } |
| 4021 | |
| 4022 | /* Pull the byte in without acking it */ |
| 4023 | ahd->msgin_buf[ahd->msgin_index] = ahd_inb(ahd, SCSIBUS)(((ahd)->tags[(0x46) >> 8])->read_1(((ahd)->bshs [(0x46) >> 8]), ((0x46) & 0xFF))); |
| 4024 | #ifdef AHD_DEBUG |
| 4025 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 4026 | printf(" byte 0x%x\n", |
| 4027 | ahd->msgin_buf[ahd->msgin_index]); |
| 4028 | #endif |
| 4029 | |
| 4030 | message_done = ahd_parse_msg(ahd, &devinfo); |
| 4031 | |
| 4032 | if (message_done) { |
| 4033 | /* |
| 4034 | * Clear our incoming message buffer in case there |
| 4035 | * is another message following this one. |
| 4036 | */ |
| 4037 | ahd->msgin_index = 0; |
| 4038 | |
| 4039 | /* |
| 4040 | * If this message illicited a response, |
| 4041 | * assert ATN so the target takes us to the |
| 4042 | * message out phase. |
| 4043 | */ |
| 4044 | if (ahd->msgout_len != 0) { |
| 4045 | #ifdef AHD_DEBUG |
| 4046 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) { |
| 4047 | ahd_print_devinfo(ahd, &devinfo); |
| 4048 | printf("Asserting ATN for response\n"); |
| 4049 | } |
| 4050 | #endif |
| 4051 | ahd_assert_atn(ahd); |
| 4052 | } |
| 4053 | } else |
| 4054 | ahd->msgin_index++; |
| 4055 | |
| 4056 | if (message_done == MSGLOOP_TERMINATED) { |
| 4057 | end_session = TRUE1; |
| 4058 | } else { |
| 4059 | /* Ack the byte */ |
| 4060 | ahd_outb(ahd, CLRSINT1, CLRREQINIT)(((ahd)->tags[(0x4c) >> 8])->write_1(((ahd)->bshs [(0x4c) >> 8]), ((0x4c) & 0xFF), (0x01))); |
| 4061 | ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_READ)(((ahd)->tags[(0x148) >> 8])->write_1(((ahd)-> bshs[(0x148) >> 8]), ((0x148) & 0xFF), (0x03))); |
| 4062 | } |
| 4063 | break; |
| 4064 | } |
| 4065 | case MSG_TYPE_TARGET_MSGIN: |
| 4066 | { |
| 4067 | int msgdone; |
| 4068 | int msgout_request; |
| 4069 | |
| 4070 | /* |
| 4071 | * By default, the message loop will continue. |
| 4072 | */ |
| 4073 | ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG)(((ahd)->tags[(0x148) >> 8])->write_1(((ahd)-> bshs[(0x148) >> 8]), ((0x148) & 0xFF), (0x02))); |
| 4074 | |
| 4075 | if (ahd->msgout_len == 0) |
| 4076 | panic("Target MSGIN with no active message"); |
| 4077 | |
| 4078 | /* |
| 4079 | * If we interrupted a mesgout session, the initiator |
| 4080 | * will not know this until our first REQ. So, we |
| 4081 | * only honor mesgout requests after we've sent our |
| 4082 | * first byte. |
| 4083 | */ |
| 4084 | if ((ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & ATNI0x10) != 0 |
| 4085 | && ahd->msgout_index > 0) |
| 4086 | msgout_request = TRUE1; |
| 4087 | else |
| 4088 | msgout_request = FALSE0; |
| 4089 | |
| 4090 | if (msgout_request) { |
| 4091 | |
| 4092 | /* |
| 4093 | * Change gears and see if |
| 4094 | * this messages is of interest to |
| 4095 | * us or should be passed back to |
| 4096 | * the sequencer. |
| 4097 | */ |
| 4098 | ahd->msg_type = MSG_TYPE_TARGET_MSGOUT; |
| 4099 | ahd_outb(ahd, SCSISIGO, P_MESGOUT | BSYO)(((ahd)->tags[(0x40) >> 8])->write_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF), (0xa0 | 0x04))); |
| 4100 | ahd->msgin_index = 0; |
| 4101 | /* Dummy read to REQ for first byte */ |
| 4102 | ahd_inb(ahd, SCSIDAT)(((ahd)->tags[(0x44) >> 8])->read_1(((ahd)->bshs [(0x44) >> 8]), ((0x44) & 0xFF))); |
| 4103 | ahd_outb(ahd, SXFRCTL0,(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))) |
| 4104 | ahd_inb(ahd, SXFRCTL0) | SPIOEN)(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))); |
| 4105 | break; |
| 4106 | } |
| 4107 | |
| 4108 | msgdone = ahd->msgout_index == ahd->msgout_len; |
| 4109 | if (msgdone) { |
| 4110 | ahd_outb(ahd, SXFRCTL0,(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) & ~0x08))) |
| 4111 | ahd_inb(ahd, SXFRCTL0) & ~SPIOEN)(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) & ~0x08))); |
| 4112 | end_session = TRUE1; |
| 4113 | break; |
| 4114 | } |
| 4115 | |
| 4116 | /* |
| 4117 | * Present the next byte on the bus. |
| 4118 | */ |
| 4119 | ahd_outb(ahd, SXFRCTL0, ahd_inb(ahd, SXFRCTL0) | SPIOEN)(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))); |
| 4120 | ahd_outb(ahd, SCSIDAT, ahd->msgout_buf[ahd->msgout_index++])(((ahd)->tags[(0x44) >> 8])->write_1(((ahd)->bshs [(0x44) >> 8]), ((0x44) & 0xFF), (ahd->msgout_buf [ahd->msgout_index++]))); |
| 4121 | break; |
| 4122 | } |
| 4123 | case MSG_TYPE_TARGET_MSGOUT: |
| 4124 | { |
| 4125 | int lastbyte; |
| 4126 | int msgdone; |
| 4127 | |
| 4128 | /* |
| 4129 | * By default, the message loop will continue. |
| 4130 | */ |
| 4131 | ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG)(((ahd)->tags[(0x148) >> 8])->write_1(((ahd)-> bshs[(0x148) >> 8]), ((0x148) & 0xFF), (0x02))); |
| 4132 | |
| 4133 | /* |
| 4134 | * The initiator signals that this is |
| 4135 | * the last byte by dropping ATN. |
| 4136 | */ |
| 4137 | lastbyte = (ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF))) & ATNI0x10) == 0; |
| 4138 | |
| 4139 | /* |
| 4140 | * Read the latched byte, but turn off SPIOEN first |
| 4141 | * so that we don't inadvertently cause a REQ for the |
| 4142 | * next byte. |
| 4143 | */ |
| 4144 | ahd_outb(ahd, SXFRCTL0, ahd_inb(ahd, SXFRCTL0) & ~SPIOEN)(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) & ~0x08))); |
| 4145 | ahd->msgin_buf[ahd->msgin_index] = ahd_inb(ahd, SCSIDAT)(((ahd)->tags[(0x44) >> 8])->read_1(((ahd)->bshs [(0x44) >> 8]), ((0x44) & 0xFF))); |
| 4146 | msgdone = ahd_parse_msg(ahd, &devinfo); |
| 4147 | if (msgdone == MSGLOOP_TERMINATED) { |
| 4148 | /* |
| 4149 | * The message is *really* done in that it caused |
| 4150 | * us to go to bus free. The sequencer has already |
| 4151 | * been reset at this point, so pull the ejection |
| 4152 | * handle. |
| 4153 | */ |
| 4154 | return; |
| 4155 | } |
| 4156 | |
| 4157 | ahd->msgin_index++; |
| 4158 | |
| 4159 | /* |
| 4160 | * XXX Read spec about initiator dropping ATN too soon |
| 4161 | * and use msgdone to detect it. |
| 4162 | */ |
| 4163 | if (msgdone == MSGLOOP_MSGCOMPLETE) { |
| 4164 | ahd->msgin_index = 0; |
| 4165 | |
| 4166 | /* |
| 4167 | * If this message illicited a response, transition |
| 4168 | * to the Message in phase and send it. |
| 4169 | */ |
| 4170 | if (ahd->msgout_len != 0) { |
| 4171 | ahd_outb(ahd, SCSISIGO, P_MESGIN | BSYO)(((ahd)->tags[(0x40) >> 8])->write_1(((ahd)->bshs [(0x40) >> 8]), ((0x40) & 0xFF), (0xe0 | 0x04))); |
| 4172 | ahd_outb(ahd, SXFRCTL0,(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))) |
| 4173 | ahd_inb(ahd, SXFRCTL0) | SPIOEN)(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))); |
| 4174 | ahd->msg_type = MSG_TYPE_TARGET_MSGIN; |
| 4175 | ahd->msgin_index = 0; |
| 4176 | break; |
| 4177 | } |
| 4178 | } |
| 4179 | |
| 4180 | if (lastbyte) |
| 4181 | end_session = TRUE1; |
| 4182 | else { |
| 4183 | /* Ask for the next byte. */ |
| 4184 | ahd_outb(ahd, SXFRCTL0,(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))) |
| 4185 | ahd_inb(ahd, SXFRCTL0) | SPIOEN)(((ahd)->tags[(0x3c) >> 8])->write_1(((ahd)->bshs [(0x3c) >> 8]), ((0x3c) & 0xFF), ((((ahd)->tags[ (0x3c) >> 8])->read_1(((ahd)->bshs[(0x3c) >> 8]), ((0x3c) & 0xFF))) | 0x08))); |
| 4186 | } |
| 4187 | |
| 4188 | break; |
| 4189 | } |
| 4190 | default: |
| 4191 | panic("Unknown REQINIT message type"); |
| 4192 | } |
| 4193 | |
| 4194 | if (end_session) { |
| 4195 | if ((ahd->msg_flags & MSG_FLAG_PACKETIZED) != 0) { |
| 4196 | printf("%s: Returning to Idle Loop\n", |
| 4197 | ahd_name(ahd)); |
| 4198 | ahd_clear_msg_state(ahd); |
| 4199 | |
| 4200 | /* |
| 4201 | * Perform the equivalent of a clear_target_state. |
| 4202 | */ |
| 4203 | ahd_outb(ahd, LASTPHASE, P_BUSFREE)(((ahd)->tags[(0x13c) >> 8])->write_1(((ahd)-> bshs[(0x13c) >> 8]), ((0x13c) & 0xFF), (0x01))); |
| 4204 | ahd_outb(ahd, SEQ_FLAGS, NOT_IDENTIFIED|NO_CDB_SENT)(((ahd)->tags[(0x139) >> 8])->write_1(((ahd)-> bshs[(0x139) >> 8]), ((0x139) & 0xFF), (0x80|0x40)) ); |
| 4205 | ahd_outb(ahd, SEQCTL0, FASTMODE|SEQRESET)(((ahd)->tags[(0xd6) >> 8])->write_1(((ahd)->bshs [(0xd6) >> 8]), ((0xd6) & 0xFF), (0x10|0x02))); |
| 4206 | } else { |
| 4207 | ahd_clear_msg_state(ahd); |
| 4208 | ahd_outb(ahd, RETURN_1, EXIT_MSG_LOOP)(((ahd)->tags[(0x148) >> 8])->write_1(((ahd)-> bshs[(0x148) >> 8]), ((0x148) & 0xFF), (0x08))); |
| 4209 | } |
| 4210 | } |
| 4211 | } |
| 4212 | |
| 4213 | /* |
| 4214 | * See if we sent a particular extended message to the target. |
| 4215 | * If "full" is true, return true only if the target saw the full |
| 4216 | * message. If "full" is false, return true if the target saw at |
| 4217 | * least the first byte of the message. |
| 4218 | */ |
| 4219 | int |
| 4220 | ahd_sent_msg(struct ahd_softc *ahd, ahd_msgtype type, u_int msgval, int full) |
| 4221 | { |
| 4222 | int found; |
| 4223 | u_int index; |
| 4224 | |
| 4225 | found = FALSE0; |
| 4226 | index = 0; |
| 4227 | |
| 4228 | while (index < ahd->msgout_len) { |
| 4229 | if (ahd->msgout_buf[index] == MSG_EXTENDED0x01) { |
| 4230 | u_int end_index; |
| 4231 | |
| 4232 | end_index = index + 1 + ahd->msgout_buf[index + 1]; |
| 4233 | if (ahd->msgout_buf[index+2] == msgval |
| 4234 | && type == AHDMSG_EXT) { |
| 4235 | |
| 4236 | if (full) { |
| 4237 | if (ahd->msgout_index > end_index) |
| 4238 | found = TRUE1; |
| 4239 | } else if (ahd->msgout_index > index) |
| 4240 | found = TRUE1; |
| 4241 | } |
| 4242 | index = end_index; |
| 4243 | } else if (ahd->msgout_buf[index] >= MSG_SIMPLE_TASK0x20 |
| 4244 | && ahd->msgout_buf[index] <= MSG_IGN_WIDE_RESIDUE0x23) { |
| 4245 | |
| 4246 | /* Skip tag type and tag id or residue param*/ |
| 4247 | index += 2; |
| 4248 | } else { |
| 4249 | /* Single byte message */ |
| 4250 | if (type == AHDMSG_1B |
| 4251 | && ahd->msgout_index > index |
| 4252 | && (ahd->msgout_buf[index] == msgval |
| 4253 | || ((ahd->msgout_buf[index] & MSG_IDENTIFYFLAG0x80) != 0 |
| 4254 | && msgval == MSG_IDENTIFYFLAG0x80))) |
| 4255 | found = TRUE1; |
| 4256 | index++; |
| 4257 | } |
| 4258 | |
| 4259 | if (found) |
| 4260 | break; |
| 4261 | } |
| 4262 | return (found); |
| 4263 | } |
| 4264 | |
| 4265 | /* |
| 4266 | * Wait for a complete incoming message, parse it, and respond accordingly. |
| 4267 | */ |
| 4268 | int |
| 4269 | ahd_parse_msg(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 4270 | { |
| 4271 | struct ahd_initiator_tinfo *tinfo; |
| 4272 | struct ahd_tmode_tstate *tstate; |
| 4273 | int reject; |
| 4274 | int done; |
| 4275 | int response; |
| 4276 | |
| 4277 | done = MSGLOOP_IN_PROG; |
| 4278 | response = FALSE0; |
| 4279 | reject = FALSE0; |
| 4280 | tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid, |
| 4281 | devinfo->target, &tstate); |
| 4282 | |
| 4283 | /* |
| 4284 | * Parse as much of the message as is available, |
| 4285 | * rejecting it if we don't support it. When |
| 4286 | * the entire message is available and has been |
| 4287 | * handled, return MSGLOOP_MSGCOMPLETE, indicating |
| 4288 | * that we have parsed an entire message. |
| 4289 | * |
| 4290 | * In the case of extended messages, we accept the length |
| 4291 | * byte outright and perform more checking once we know the |
| 4292 | * extended message type. |
| 4293 | */ |
| 4294 | switch (ahd->msgin_buf[0]) { |
| 4295 | case MSG_DISCONNECT0x04: |
| 4296 | case MSG_SAVEDATAPOINTER0x02: |
| 4297 | case MSG_CMDCOMPLETE0x00: |
| 4298 | case MSG_RESTOREPOINTERS0x03: |
| 4299 | case MSG_IGN_WIDE_RESIDUE0x23: |
| 4300 | /* |
| 4301 | * End our message loop as these are messages |
| 4302 | * the sequencer handles on its own. |
| 4303 | */ |
| 4304 | done = MSGLOOP_TERMINATED; |
| 4305 | break; |
| 4306 | case MSG_MESSAGE_REJECT0x07: |
| 4307 | response = ahd_handle_msg_reject(ahd, devinfo); |
| 4308 | /* FALLTHROUGH */ |
| 4309 | case MSG_NOOP0x08: |
| 4310 | done = MSGLOOP_MSGCOMPLETE; |
| 4311 | break; |
| 4312 | case MSG_EXTENDED0x01: |
| 4313 | { |
| 4314 | /* Wait for enough of the message to begin validation */ |
| 4315 | if (ahd->msgin_index < 2) |
| 4316 | break; |
| 4317 | switch (ahd->msgin_buf[2]) { |
| 4318 | case MSG_EXT_SDTR0x01: |
| 4319 | { |
| 4320 | u_int period; |
| 4321 | u_int ppr_options; |
| 4322 | u_int offset; |
| 4323 | u_int saved_offset; |
| 4324 | |
| 4325 | if (ahd->msgin_buf[1] != MSG_EXT_SDTR_LEN0x03) { |
| 4326 | reject = TRUE1; |
| 4327 | break; |
| 4328 | } |
| 4329 | |
| 4330 | /* |
| 4331 | * Wait until we have both args before validating |
| 4332 | * and acting on this message. |
| 4333 | * |
| 4334 | * Add one to MSG_EXT_SDTR_LEN to account for |
| 4335 | * the extended message preamble. |
| 4336 | */ |
| 4337 | if (ahd->msgin_index < (MSG_EXT_SDTR_LEN0x03 + 1)) |
| 4338 | break; |
| 4339 | |
| 4340 | period = ahd->msgin_buf[3]; |
| 4341 | ppr_options = 0; |
| 4342 | saved_offset = offset = ahd->msgin_buf[4]; |
| 4343 | ahd_devlimited_syncrate(ahd, tinfo, &period, |
| 4344 | &ppr_options, devinfo->role); |
| 4345 | ahd_validate_offset(ahd, tinfo, period, &offset, |
| 4346 | tinfo->curr.width, devinfo->role); |
| 4347 | if (bootverbose0) { |
| 4348 | printf("(%s:%c:%d:%d): Received " |
| 4349 | "SDTR period %x, offset %x\n\t" |
| 4350 | "Filtered to period %x, offset %x\n", |
| 4351 | ahd_name(ahd), devinfo->channel, |
| 4352 | devinfo->target, devinfo->lun, |
| 4353 | ahd->msgin_buf[3], saved_offset, |
| 4354 | period, offset); |
| 4355 | } |
| 4356 | ahd_set_syncrate(ahd, devinfo, period, |
| 4357 | offset, ppr_options, |
| 4358 | AHD_TRANS_ACTIVE0x03|AHD_TRANS_GOAL0x04, |
| 4359 | /*paused*/TRUE1); |
| 4360 | |
| 4361 | /* |
| 4362 | * See if we initiated Sync Negotiation |
| 4363 | * and didn't have to fall down to async |
| 4364 | * transfers. |
| 4365 | */ |
| 4366 | if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_SDTR0x01, TRUE1)) { |
| 4367 | /* We started it */ |
| 4368 | if (saved_offset != offset) { |
| 4369 | /* Went too low - force async */ |
| 4370 | reject = TRUE1; |
| 4371 | } |
| 4372 | } else { |
| 4373 | /* |
| 4374 | * Send our own SDTR in reply |
| 4375 | */ |
| 4376 | if (bootverbose0 |
| 4377 | && devinfo->role == ROLE_INITIATOR) { |
| 4378 | printf("(%s:%c:%d:%d): Target " |
| 4379 | "Initiated SDTR\n", |
| 4380 | ahd_name(ahd), devinfo->channel, |
| 4381 | devinfo->target, devinfo->lun); |
| 4382 | } |
| 4383 | ahd->msgout_index = 0; |
| 4384 | ahd->msgout_len = 0; |
| 4385 | ahd_construct_sdtr(ahd, devinfo, |
| 4386 | period, offset); |
| 4387 | ahd->msgout_index = 0; |
| 4388 | response = TRUE1; |
| 4389 | } |
| 4390 | done = MSGLOOP_MSGCOMPLETE; |
| 4391 | break; |
| 4392 | } |
| 4393 | case MSG_EXT_WDTR0x03: |
| 4394 | { |
| 4395 | u_int bus_width; |
| 4396 | u_int saved_width; |
| 4397 | u_int sending_reply; |
| 4398 | |
| 4399 | sending_reply = FALSE0; |
| 4400 | if (ahd->msgin_buf[1] != MSG_EXT_WDTR_LEN0x02) { |
| 4401 | reject = TRUE1; |
| 4402 | break; |
| 4403 | } |
| 4404 | |
| 4405 | /* |
| 4406 | * Wait until we have our arg before validating |
| 4407 | * and acting on this message. |
| 4408 | * |
| 4409 | * Add one to MSG_EXT_WDTR_LEN to account for |
| 4410 | * the extended message preamble. |
| 4411 | */ |
| 4412 | if (ahd->msgin_index < (MSG_EXT_WDTR_LEN0x02 + 1)) |
| 4413 | break; |
| 4414 | |
| 4415 | bus_width = ahd->msgin_buf[3]; |
| 4416 | saved_width = bus_width; |
| 4417 | ahd_validate_width(ahd, tinfo, &bus_width, |
| 4418 | devinfo->role); |
| 4419 | if (bootverbose0) { |
| 4420 | printf("(%s:%c:%d:%d): Received WDTR " |
| 4421 | "%x filtered to %x\n", |
| 4422 | ahd_name(ahd), devinfo->channel, |
| 4423 | devinfo->target, devinfo->lun, |
| 4424 | saved_width, bus_width); |
| 4425 | } |
| 4426 | |
| 4427 | if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_WDTR0x03, TRUE1)) { |
| 4428 | /* |
| 4429 | * Don't send a WDTR back to the |
| 4430 | * target, since we asked first. |
| 4431 | * If the width went higher than our |
| 4432 | * request, reject it. |
| 4433 | */ |
| 4434 | if (saved_width > bus_width) { |
| 4435 | reject = TRUE1; |
| 4436 | printf("(%s:%c:%d:%d): requested %dBit " |
| 4437 | "transfers. Rejecting...\n", |
| 4438 | ahd_name(ahd), devinfo->channel, |
| 4439 | devinfo->target, devinfo->lun, |
| 4440 | 8 * (0x01 << bus_width)); |
| 4441 | bus_width = 0; |
| 4442 | } |
| 4443 | } else { |
| 4444 | /* |
| 4445 | * Send our own WDTR in reply |
| 4446 | */ |
| 4447 | if (bootverbose0 |
| 4448 | && devinfo->role == ROLE_INITIATOR) { |
| 4449 | printf("(%s:%c:%d:%d): Target " |
| 4450 | "Initiated WDTR\n", |
| 4451 | ahd_name(ahd), devinfo->channel, |
| 4452 | devinfo->target, devinfo->lun); |
| 4453 | } |
| 4454 | ahd->msgout_index = 0; |
| 4455 | ahd->msgout_len = 0; |
| 4456 | ahd_construct_wdtr(ahd, devinfo, bus_width); |
| 4457 | ahd->msgout_index = 0; |
| 4458 | response = TRUE1; |
| 4459 | sending_reply = TRUE1; |
| 4460 | } |
| 4461 | /* |
| 4462 | * After a wide message, we are async, but |
| 4463 | * some devices don't seem to honor this portion |
| 4464 | * of the spec. Force a renegotiation of the |
| 4465 | * sync component of our transfer agreement even |
| 4466 | * if our goal is async. By updating our width |
| 4467 | * after forcing the negotiation, we avoid |
| 4468 | * renegotiating for width. |
| 4469 | */ |
| 4470 | ahd_update_neg_request(ahd, devinfo, tstate, |
| 4471 | tinfo, AHD_NEG_ALWAYS); |
| 4472 | ahd_set_width(ahd, devinfo, bus_width, |
| 4473 | AHD_TRANS_ACTIVE0x03|AHD_TRANS_GOAL0x04, |
| 4474 | /*paused*/TRUE1); |
| 4475 | if (sending_reply == FALSE0 && reject == FALSE0) { |
| 4476 | |
| 4477 | /* |
| 4478 | * We will always have an SDTR to send. |
| 4479 | */ |
| 4480 | ahd->msgout_index = 0; |
| 4481 | ahd->msgout_len = 0; |
| 4482 | ahd_build_transfer_msg(ahd, devinfo); |
| 4483 | ahd->msgout_index = 0; |
| 4484 | response = TRUE1; |
| 4485 | } |
| 4486 | done = MSGLOOP_MSGCOMPLETE; |
| 4487 | break; |
| 4488 | } |
| 4489 | case MSG_EXT_PPR0x04: |
| 4490 | { |
| 4491 | u_int period; |
| 4492 | u_int offset; |
| 4493 | u_int bus_width; |
| 4494 | u_int ppr_options; |
| 4495 | u_int saved_width; |
| 4496 | u_int saved_offset; |
| 4497 | u_int saved_ppr_options; |
| 4498 | |
| 4499 | if (ahd->msgin_buf[1] != MSG_EXT_PPR_LEN0x06) { |
| 4500 | reject = TRUE1; |
| 4501 | break; |
| 4502 | } |
| 4503 | |
| 4504 | /* |
| 4505 | * Wait until we have all args before validating |
| 4506 | * and acting on this message. |
| 4507 | * |
| 4508 | * Add one to MSG_EXT_PPR_LEN to account for |
| 4509 | * the extended message preamble. |
| 4510 | */ |
| 4511 | if (ahd->msgin_index < (MSG_EXT_PPR_LEN0x06 + 1)) |
| 4512 | break; |
| 4513 | |
| 4514 | period = ahd->msgin_buf[3]; |
| 4515 | offset = ahd->msgin_buf[5]; |
| 4516 | bus_width = ahd->msgin_buf[6]; |
| 4517 | saved_width = bus_width; |
| 4518 | ppr_options = ahd->msgin_buf[7]; |
| 4519 | /* |
| 4520 | * According to the spec, a DT only |
| 4521 | * period factor with no DT option |
| 4522 | * set implies async. |
| 4523 | */ |
| 4524 | if ((ppr_options & MSG_EXT_PPR_DT_REQ0x02) == 0 |
| 4525 | && period <= 9) |
| 4526 | offset = 0; |
| 4527 | saved_ppr_options = ppr_options; |
| 4528 | saved_offset = offset; |
| 4529 | |
| 4530 | /* |
| 4531 | * Transfer options are only available if we |
| 4532 | * are negotiating wide. |
| 4533 | */ |
| 4534 | if (bus_width == 0) |
| 4535 | ppr_options &= MSG_EXT_PPR_QAS_REQ0x04; |
| 4536 | |
| 4537 | ahd_validate_width(ahd, tinfo, &bus_width, |
| 4538 | devinfo->role); |
| 4539 | ahd_devlimited_syncrate(ahd, tinfo, &period, |
| 4540 | &ppr_options, devinfo->role); |
| 4541 | ahd_validate_offset(ahd, tinfo, period, &offset, |
| 4542 | bus_width, devinfo->role); |
| 4543 | |
| 4544 | if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_PPR0x04, TRUE1)) { |
| 4545 | /* |
| 4546 | * If we are unable to do any of the |
| 4547 | * requested options (we went too low), |
| 4548 | * then we'll have to reject the message. |
| 4549 | */ |
| 4550 | if (saved_width > bus_width |
| 4551 | || saved_offset != offset |
| 4552 | || saved_ppr_options != ppr_options) { |
| 4553 | reject = TRUE1; |
| 4554 | period = 0; |
| 4555 | offset = 0; |
| 4556 | bus_width = 0; |
| 4557 | ppr_options = 0; |
| 4558 | } |
| 4559 | } else { |
| 4560 | if (devinfo->role != ROLE_TARGET) |
| 4561 | printf("(%s:%c:%d:%d): Target " |
| 4562 | "Initiated PPR\n", |
| 4563 | ahd_name(ahd), devinfo->channel, |
| 4564 | devinfo->target, devinfo->lun); |
| 4565 | else |
| 4566 | printf("(%s:%c:%d:%d): Initiator " |
| 4567 | "Initiated PPR\n", |
| 4568 | ahd_name(ahd), devinfo->channel, |
| 4569 | devinfo->target, devinfo->lun); |
| 4570 | ahd->msgout_index = 0; |
| 4571 | ahd->msgout_len = 0; |
| 4572 | ahd_construct_ppr(ahd, devinfo, period, offset, |
| 4573 | bus_width, ppr_options); |
| 4574 | ahd->msgout_index = 0; |
| 4575 | response = TRUE1; |
| 4576 | } |
| 4577 | if (bootverbose0) { |
| 4578 | printf("(%s:%c:%d:%d): Received PPR width %x, " |
| 4579 | "period %x, offset %x,options %x\n" |
| 4580 | "\tFiltered to width %x, period %x, " |
| 4581 | "offset %x, options %x\n", |
| 4582 | ahd_name(ahd), devinfo->channel, |
| 4583 | devinfo->target, devinfo->lun, |
| 4584 | saved_width, ahd->msgin_buf[3], |
| 4585 | saved_offset, saved_ppr_options, |
| 4586 | bus_width, period, offset, ppr_options); |
| 4587 | } |
| 4588 | ahd_set_width(ahd, devinfo, bus_width, |
| 4589 | AHD_TRANS_ACTIVE0x03|AHD_TRANS_GOAL0x04, |
| 4590 | /*paused*/TRUE1); |
| 4591 | ahd_set_syncrate(ahd, devinfo, period, |
| 4592 | offset, ppr_options, |
| 4593 | AHD_TRANS_ACTIVE0x03|AHD_TRANS_GOAL0x04, |
| 4594 | /*paused*/TRUE1); |
| 4595 | |
| 4596 | done = MSGLOOP_MSGCOMPLETE; |
| 4597 | break; |
| 4598 | } |
| 4599 | default: |
| 4600 | /* Unknown extended message. Reject it. */ |
| 4601 | reject = TRUE1; |
| 4602 | break; |
| 4603 | } |
| 4604 | break; |
| 4605 | } |
| 4606 | #ifdef AHD_TARGET_MODE |
| 4607 | case MSG_BUS_DEV_RESET0x0c: |
| 4608 | ahd_handle_devreset(ahd, devinfo, CAM_LUN_WILDCARD-1, |
| 4609 | CAM_BDR_SENT, |
| 4610 | "Bus Device Reset Received", |
| 4611 | /*verbose_level*/0); |
| 4612 | ahd_restart(ahd); |
| 4613 | done = MSGLOOP_TERMINATED; |
| 4614 | break; |
| 4615 | case MSG_ABORT_TAG0x0d: |
| 4616 | case MSG_ABORT0x06: |
| 4617 | case MSG_CLEAR_QUEUE0x0e: |
| 4618 | { |
| 4619 | int tag; |
| 4620 | |
| 4621 | /* Target mode messages */ |
| 4622 | if (devinfo->role != ROLE_TARGET) { |
| 4623 | reject = TRUE1; |
| 4624 | break; |
| 4625 | } |
| 4626 | tag = SCB_LIST_NULL0xFF00; |
| 4627 | if (ahd->msgin_buf[0] == MSG_ABORT_TAG0x0d) |
| 4628 | tag = ahd_inb(ahd, INITIATOR_TAG)(((ahd)->tags[(0x14c) >> 8])->read_1(((ahd)->bshs [(0x14c) >> 8]), ((0x14c) & 0xFF))); |
| 4629 | ahd_abort_scbs(ahd, devinfo->target, devinfo->channel, |
| 4630 | devinfo->lun, tag, ROLE_TARGET, |
| 4631 | CAM_REQ_ABORTED); |
| 4632 | |
| 4633 | tstate = ahd->enabled_targets[devinfo->our_scsiid]; |
| 4634 | if (tstate != NULL((void *)0)) { |
| 4635 | struct ahd_tmode_lstate* lstate; |
| 4636 | |
| 4637 | lstate = tstate->enabled_luns[devinfo->lun]; |
| 4638 | if (lstate != NULL((void *)0)) { |
| 4639 | ahd_queue_lstate_event(ahd, lstate, |
| 4640 | devinfo->our_scsiid, |
| 4641 | ahd->msgin_buf[0], |
| 4642 | /*arg*/tag); |
| 4643 | ahd_send_lstate_events(ahd, lstate); |
| 4644 | } |
| 4645 | } |
| 4646 | ahd_restart(ahd); |
| 4647 | done = MSGLOOP_TERMINATED; |
| 4648 | break; |
| 4649 | } |
| 4650 | #endif |
| 4651 | case MSG_QAS_REQUEST0x55: |
| 4652 | #ifdef AHD_DEBUG |
| 4653 | if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) |
| 4654 | printf("%s: QAS request. SCSISIGI == 0x%x\n", |
| 4655 | ahd_name(ahd), ahd_inb(ahd, SCSISIGI)(((ahd)->tags[(0x41) >> 8])->read_1(((ahd)->bshs [(0x41) >> 8]), ((0x41) & 0xFF)))); |
| 4656 | #endif |
| 4657 | ahd->msg_flags |= MSG_FLAG_EXPECT_QASREJ_BUSFREE; |
| 4658 | /* FALLTHROUGH */ |
| 4659 | case MSG_TERM_IO_PROC0x11: |
| 4660 | default: |
| 4661 | reject = TRUE1; |
| 4662 | break; |
| 4663 | } |
| 4664 | |
| 4665 | if (reject) { |
| 4666 | /* |
| 4667 | * Setup to reject the message. |
| 4668 | */ |
| 4669 | ahd->msgout_index = 0; |
| 4670 | ahd->msgout_len = 1; |
| 4671 | ahd->msgout_buf[0] = MSG_MESSAGE_REJECT0x07; |
| 4672 | done = MSGLOOP_MSGCOMPLETE; |
| 4673 | response = TRUE1; |
| 4674 | } |
| 4675 | |
| 4676 | if (done != MSGLOOP_IN_PROG && !response) |
| 4677 | /* Clear the outgoing message buffer */ |
| 4678 | ahd->msgout_len = 0; |
| 4679 | |
| 4680 | return (done); |
| 4681 | } |
| 4682 | |
| 4683 | /* |
| 4684 | * Process a message reject message. |
| 4685 | */ |
| 4686 | int |
| 4687 | ahd_handle_msg_reject(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 4688 | { |
| 4689 | /* |
| 4690 | * What we care about here is if we had an |
| 4691 | * outstanding SDTR or WDTR message for this |
| 4692 | * target. If we did, this is a signal that |
| 4693 | * the target is refusing negotiation. |
| 4694 | */ |
| 4695 | struct scb *scb; |
| 4696 | struct ahd_initiator_tinfo *tinfo; |
| 4697 | struct ahd_tmode_tstate *tstate; |
| 4698 | u_int scb_index; |
| 4699 | u_int last_msg; |
| 4700 | int response = 0; |
| 4701 | |
| 4702 | scb_index = ahd_get_scbptr(ahd); |
| 4703 | scb = ahd_lookup_scb(ahd, scb_index); |
| 4704 | tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, |
| 4705 | devinfo->our_scsiid, |
| 4706 | devinfo->target, &tstate); |
| 4707 | /* Might be necessary */ |
| 4708 | last_msg = ahd_inb(ahd, LAST_MSG)(((ahd)->tags[(0x14a) >> 8])->read_1(((ahd)->bshs [(0x14a) >> 8]), ((0x14a) & 0xFF))); |
| 4709 | |
| 4710 | if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_PPR0x04, /*full*/FALSE0)) { |
| 4711 | if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_PPR0x04, /*full*/TRUE1) |
| 4712 | && tinfo->goal.period <= AHD_SYNCRATE_PACED0x8) { |
| 4713 | /* |
| 4714 | * Target may not like our SPI-4 PPR Options. |
| 4715 | * Attempt to negotiate 80MHz which will turn |
| 4716 | * off these options. |
| 4717 | */ |
| 4718 | if (bootverbose0) { |
| 4719 | printf("(%s:%c:%d:%d): PPR Rejected. " |
| 4720 | "Trying simple U160 PPR\n", |
| 4721 | ahd_name(ahd), devinfo->channel, |
| 4722 | devinfo->target, devinfo->lun); |
| 4723 | } |
| 4724 | tinfo->goal.period = AHD_SYNCRATE_DT0x9; |
| 4725 | tinfo->goal.ppr_options &= MSG_EXT_PPR_IU_REQ0x01 |
| 4726 | | MSG_EXT_PPR_QAS_REQ0x04 |
| 4727 | | MSG_EXT_PPR_DT_REQ0x02; |
| 4728 | } else { |
| 4729 | /* |
| 4730 | * Target does not support the PPR message. |
| 4731 | * Attempt to negotiate SPI-2 style. |
| 4732 | */ |
| 4733 | if (bootverbose0) { |
| 4734 | printf("(%s:%c:%d:%d): PPR Rejected. " |
| 4735 | "Trying WDTR/SDTR\n", |
| 4736 | ahd_name(ahd), devinfo->channel, |
| 4737 | devinfo->target, devinfo->lun); |
| 4738 | } |
| 4739 | tinfo->goal.ppr_options = 0; |
| 4740 | tinfo->curr.transport_version = 2; |
| 4741 | tinfo->goal.transport_version = 2; |
| 4742 | } |
| 4743 | ahd->msgout_index = 0; |
| 4744 | ahd->msgout_len = 0; |
| 4745 | ahd_build_transfer_msg(ahd, devinfo); |
| 4746 | ahd->msgout_index = 0; |
| 4747 | response = 1; |
| 4748 | } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_WDTR0x03, /*full*/FALSE0)) { |
| 4749 | |
| 4750 | /* note 8bit xfers */ |
| 4751 | printf("(%s:%c:%d:%d): refuses WIDE negotiation. Using " |
| 4752 | "8bit transfers\n", ahd_name(ahd), |
| 4753 | devinfo->channel, devinfo->target, devinfo->lun); |
| 4754 | ahd_set_width(ahd, devinfo, MSG_EXT_WDTR_BUS_8_BIT0x00, |
| 4755 | AHD_TRANS_ACTIVE0x03|AHD_TRANS_GOAL0x04, |
| 4756 | /*paused*/TRUE1); |
| 4757 | /* |
| 4758 | * No need to clear the sync rate. If the target |
| 4759 | * did not accept the command, our syncrate is |
| 4760 | * unaffected. If the target started the negotiation, |
| 4761 | * but rejected our response, we already cleared the |
| 4762 | * sync rate before sending our WDTR. |
| 4763 | */ |
| 4764 | if (tinfo->goal.offset != tinfo->curr.offset) { |
| 4765 | |
| 4766 | /* Start the sync negotiation */ |
| 4767 | ahd->msgout_index = 0; |
| 4768 | ahd->msgout_len = 0; |
| 4769 | ahd_build_transfer_msg(ahd, devinfo); |
| 4770 | ahd->msgout_index = 0; |
| 4771 | response = 1; |
| 4772 | } |
| 4773 | } else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_SDTR0x01, /*full*/FALSE0)) { |
| 4774 | /* note asynch xfers and clear flag */ |
| 4775 | ahd_set_syncrate(ahd, devinfo, /*period*/0, |
| 4776 | /*offset*/0, /*ppr_options*/0, |
| 4777 | AHD_TRANS_ACTIVE0x03|AHD_TRANS_GOAL0x04, |
| 4778 | /*paused*/TRUE1); |
| 4779 | printf("(%s:%c:%d:%d): refuses synchronous negotiation. " |
| 4780 | "Using asynchronous transfers\n", |
| 4781 | ahd_name(ahd), devinfo->channel, |
| 4782 | devinfo->target, devinfo->lun); |
| 4783 | } else if ((scb->hscb->control & MSG_SIMPLE_TASK0x20) != 0) { |
| 4784 | int tag_type; |
| 4785 | int mask; |
| 4786 | |
| 4787 | tag_type = (scb->hscb->control & MSG_SIMPLE_TASK0x20); |
| 4788 | |
| 4789 | if (tag_type == MSG_SIMPLE_TASK0x20) { |
| 4790 | printf("(%s:%c:%d:%d): refuses tagged commands. " |
| 4791 | "Performing non-tagged I/O\n", ahd_name(ahd), |
| 4792 | devinfo->channel, devinfo->target, devinfo->lun); |
| 4793 | ahd_set_tags(ahd, devinfo, AHD_QUEUE_NONE); |
| 4794 | mask = ~0x23; |
| 4795 | } else { |
| 4796 | printf("(%s:%c:%d:%d): refuses %s tagged commands. " |
| 4797 | "Performing simple queue tagged I/O only\n", |
| 4798 | ahd_name(ahd), devinfo->channel, devinfo->target, |
| 4799 | devinfo->lun, tag_type == MSG_ORDERED_TASK0x22 |
| 4800 | ? "ordered" : "head of queue"); |
| 4801 | ahd_set_tags(ahd, devinfo, AHD_QUEUE_BASIC); |
| 4802 | mask = ~0x03; |
| 4803 | } |
| 4804 | |
| 4805 | /* |
| 4806 | * Resend the identify for this CCB as the target |
| 4807 | * may believe that the selection is invalid otherwise. |
| 4808 | */ |
| 4809 | ahd_outb(ahd, SCB_CONTROL,(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & mask))) |
| 4810 | ahd_inb_scbram(ahd, SCB_CONTROL) & mask)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (ahd_inb_scbram (ahd, 0x192) & mask))); |
| 4811 | scb->hscb->control &= mask; |
| 4812 | aic_set_transaction_tag(scb, /*enabled*/FALSE, |
| 4813 | /*type*/MSG_SIMPLE_TASK); |
| 4814 | ahd_outb(ahd, MSG_OUT, MSG_IDENTIFYFLAG)(((ahd)->tags[(0x137) >> 8])->write_1(((ahd)-> bshs[(0x137) >> 8]), ((0x137) & 0xFF), (0x80))); |
| 4815 | ahd_assert_atn(ahd); |
| 4816 | ahd_busy_tcl(ahd, BUILD_TCL(scb->hscb->scsiid, devinfo->lun)((devinfo->lun) | (((scb->hscb->scsiid) & 0xf0) << 4)), |
| 4817 | SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag))); |
| 4818 | |
| 4819 | /* |
| 4820 | * Requeue all tagged commands for this target |
| 4821 | * currently in our possession so they can be |
| 4822 | * converted to untagged commands. |
| 4823 | */ |
| 4824 | ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb)((((scb)->hscb->scsiid) & 0xf0) >> 0x04), |
| 4825 | SCB_GET_CHANNEL(ahd, scb)('A'), |
| 4826 | SCB_GET_LUN(scb)((scb)->hscb->lun), /*tag*/SCB_LIST_NULL0xFF00, |
| 4827 | ROLE_INITIATOR, CAM_REQUEUE_REQ, |
| 4828 | SEARCH_COMPLETE); |
| 4829 | } else if (ahd_sent_msg(ahd, AHDMSG_1B, MSG_IDENTIFYFLAG0x80, TRUE1)) { |
| 4830 | /* |
| 4831 | * Most likely the device believes that we had |
| 4832 | * previously negotiated packetized. |
| 4833 | */ |
| 4834 | ahd->msg_flags |= MSG_FLAG_EXPECT_PPR_BUSFREE |
| 4835 | | MSG_FLAG_IU_REQ_CHANGED; |
| 4836 | |
| 4837 | ahd_force_renegotiation(ahd, devinfo); |
| 4838 | ahd->msgout_index = 0; |
| 4839 | ahd->msgout_len = 0; |
| 4840 | ahd_build_transfer_msg(ahd, devinfo); |
| 4841 | ahd->msgout_index = 0; |
| 4842 | response = 1; |
| 4843 | } else { |
| 4844 | /* |
| 4845 | * Otherwise, we ignore it. |
| 4846 | */ |
| 4847 | printf("%s:%c:%d: Message reject for %x -- ignored\n", |
| 4848 | ahd_name(ahd), devinfo->channel, devinfo->target, |
| 4849 | last_msg); |
| 4850 | } |
| 4851 | return (response); |
| 4852 | } |
| 4853 | |
| 4854 | /* |
| 4855 | * Process an ignore wide residue message. |
| 4856 | */ |
| 4857 | void |
| 4858 | ahd_handle_ign_wide_residue(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) |
| 4859 | { |
| 4860 | u_int scb_index; |
| 4861 | struct scb *scb; |
| 4862 | |
| 4863 | scb_index = ahd_get_scbptr(ahd); |
| 4864 | scb = ahd_lookup_scb(ahd, scb_index); |
| 4865 | /* |
| 4866 | * XXX Actually check data direction in the sequencer? |
| 4867 | * Perhaps add datadir to some spare bits in the hscb? |
| 4868 | */ |
| 4869 | if ((ahd_inb(ahd, SEQ_FLAGS)(((ahd)->tags[(0x139) >> 8])->read_1(((ahd)->bshs [(0x139) >> 8]), ((0x139) & 0xFF))) & DPHASE0x20) == 0 |
| 4870 | || aic_get_transfer_dir(scb)((scb)->xs->flags & (0x00800 | 0x01000)) != CAM_DIR_IN) { |
| 4871 | /* |
| 4872 | * Ignore the message if we haven't |
| 4873 | * seen an appropriate data phase yet. |
| 4874 | */ |
| 4875 | } else { |
| 4876 | /* |
| 4877 | * If the residual occurred on the last |
| 4878 | * transfer and the transfer request was |
| 4879 | * expected to end on an odd count, do |
| 4880 | * nothing. Otherwise, subtract a byte |
| 4881 | * and update the residual count accordingly. |
| 4882 | */ |
| 4883 | uint32_t sgptr; |
| 4884 | |
| 4885 | sgptr = ahd_inb_scbram(ahd, SCB_RESIDUAL_SGPTR0x184); |
| 4886 | if ((sgptr & SG_LIST_NULL0x01) != 0 |
| 4887 | && (ahd_inb_scbram(ahd, SCB_TASK_ATTRIBUTE0x195) |
| 4888 | & SCB_XFERLEN_ODD0x01) != 0) { |
| 4889 | /* |
| 4890 | * If the residual occurred on the last |
| 4891 | * transfer and the transfer request was |
| 4892 | * expected to end on an odd count, do |
| 4893 | * nothing. |
| 4894 | */ |
| 4895 | } else { |
| 4896 | uint32_t data_cnt; |
| 4897 | uint64_t data_addr; |
| 4898 | uint32_t sglen; |
| 4899 | |
| 4900 | /* Pull in the rest of the sgptr */ |
| 4901 | sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR0x184); |
| 4902 | data_cnt = ahd_inl_scbram(ahd, SCB_RESIDUAL_DATACNT0x180); |
| 4903 | if ((sgptr & SG_LIST_NULL0x01) != 0) { |
| 4904 | /* |
| 4905 | * The residual data count is not updated |
| 4906 | * for the command run to completion case. |
| 4907 | * Explicitly zero the count. |
| 4908 | */ |
| 4909 | data_cnt &= ~AHD_SG_LEN_MASK0x00FFFFFF; |
| 4910 | } |
| 4911 | data_addr = ahd_inq(ahd, SHADDR0x60); |
| 4912 | data_cnt += 1; |
| 4913 | data_addr -= 1; |
| 4914 | sgptr &= SG_PTR_MASK0xFFFFFFF8; |
| 4915 | if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) { |
| 4916 | struct ahd_dma64_seg *sg; |
| 4917 | |
| 4918 | sg = ahd_sg_bus_to_virt(ahd, scb, sgptr); |
| 4919 | |
| 4920 | /* |
| 4921 | * The residual sg ptr points to the next S/G |
| 4922 | * to load so we must go back one. |
| 4923 | */ |
| 4924 | sg--; |
| 4925 | sglen = aic_le32toh(sg->len)((__uint32_t)(sg->len)) & AHD_SG_LEN_MASK0x00FFFFFF; |
| 4926 | if (sg != scb->sg_list |
| 4927 | && sglen < (data_cnt & AHD_SG_LEN_MASK0x00FFFFFF)) { |
| 4928 | |
| 4929 | sg--; |
| 4930 | sglen = aic_le32toh(sg->len)((__uint32_t)(sg->len)); |
| 4931 | /* |
| 4932 | * Preserve High Address and SG_LIST |
| 4933 | * bits while setting the count to 1. |
| 4934 | */ |
| 4935 | data_cnt = 1|(sglen&(~AHD_SG_LEN_MASK0x00FFFFFF)); |
| 4936 | data_addr = aic_le64toh(sg->addr)((__uint64_t)(sg->addr)) |
| 4937 | + (sglen & AHD_SG_LEN_MASK0x00FFFFFF) |
| 4938 | - 1; |
| 4939 | |
| 4940 | /* |
| 4941 | * Increment sg so it points to the |
| 4942 | * "next" sg. |
| 4943 | */ |
| 4944 | sg++; |
| 4945 | sgptr = ahd_sg_virt_to_bus(ahd, scb, |
| 4946 | sg); |
| 4947 | } |
| 4948 | } else { |
| 4949 | struct ahd_dma_seg *sg; |
| 4950 | |
| 4951 | sg = ahd_sg_bus_to_virt(ahd, scb, sgptr); |
| 4952 | |
| 4953 | /* |
| 4954 | * The residual sg ptr points to the next S/G |
| 4955 | * to load so we must go back one. |
| 4956 | */ |
| 4957 | sg--; |
| 4958 | sglen = aic_le32toh(sg->len)((__uint32_t)(sg->len)) & AHD_SG_LEN_MASK0x00FFFFFF; |
| 4959 | if (sg != scb->sg_list |
| 4960 | && sglen < (data_cnt & AHD_SG_LEN_MASK0x00FFFFFF)) { |
| 4961 | |
| 4962 | sg--; |
| 4963 | sglen = aic_le32toh(sg->len)((__uint32_t)(sg->len)); |
| 4964 | /* |
| 4965 | * Preserve High Address and SG_LIST |
| 4966 | * bits while setting the count to 1. |
| 4967 | */ |
| 4968 | data_cnt = 1|(sglen&(~AHD_SG_LEN_MASK0x00FFFFFF)); |
| 4969 | data_addr = aic_le32toh(sg->addr)((__uint32_t)(sg->addr)) |
| 4970 | + (sglen & AHD_SG_LEN_MASK0x00FFFFFF) |
| 4971 | - 1; |
| 4972 | |
| 4973 | /* |
| 4974 | * Increment sg so it points to the |
| 4975 | * "next" sg. |
| 4976 | */ |
| 4977 | sg++; |
| 4978 | sgptr = ahd_sg_virt_to_bus(ahd, scb, |
| 4979 | sg); |
| 4980 | } |
| 4981 | } |
| 4982 | /* |
| 4983 | * Toggle the "oddness" of the transfer length |
| 4984 | * to handle this mid-transfer ignore wide |
| 4985 | * residue. This ensures that the oddness is |
| 4986 | * correct for subsequent data transfers. |
| 4987 | */ |
| 4988 | ahd_outb(ahd, SCB_TASK_ATTRIBUTE,(((ahd)->tags[(0x195) >> 8])->write_1(((ahd)-> bshs[(0x195) >> 8]), ((0x195) & 0xFF), (ahd_inb_scbram (ahd, 0x195) ^ 0x01))) |
| 4989 | ahd_inb_scbram(ahd, SCB_TASK_ATTRIBUTE)(((ahd)->tags[(0x195) >> 8])->write_1(((ahd)-> bshs[(0x195) >> 8]), ((0x195) & 0xFF), (ahd_inb_scbram (ahd, 0x195) ^ 0x01))) |
| 4990 | ^ SCB_XFERLEN_ODD)(((ahd)->tags[(0x195) >> 8])->write_1(((ahd)-> bshs[(0x195) >> 8]), ((0x195) & 0xFF), (ahd_inb_scbram (ahd, 0x195) ^ 0x01))); |
| 4991 | |
| 4992 | ahd_outl(ahd, SCB_RESIDUAL_SGPTR0x184, sgptr); |
| 4993 | ahd_outl(ahd, SCB_RESIDUAL_DATACNT0x180, data_cnt); |
| 4994 | /* |
| 4995 | * The FIFO's pointers will be updated if/when the |
| 4996 | * sequencer re-enters a data phase. |
| 4997 | */ |
| 4998 | } |
| 4999 | } |
| 5000 | } |
| 5001 | |
| 5002 | |
| 5003 | /* |
| 5004 | * Reinitialize the data pointers for the active transfer |
| 5005 | * based on its current residual. |
| 5006 | */ |
| 5007 | void |
| 5008 | ahd_reinitialize_dataptrs(struct ahd_softc *ahd) |
| 5009 | { |
| 5010 | struct scb *scb; |
| 5011 | ahd_mode_state saved_modes; |
| 5012 | u_int scb_index; |
| 5013 | u_int wait; |
| 5014 | uint32_t sgptr; |
| 5015 | uint32_t resid; |
| 5016 | uint64_t dataptr; |
| 5017 | |
| 5018 | AHD_ASSERT_MODES(ahd, AHD_MODE_DFF0_MSK|AHD_MODE_DFF1_MSK,ahd_assert_modes(ahd, (0x01 << (AHD_MODE_DFF0))|(0x01 << (AHD_MODE_DFF1)), (0x01 << (AHD_MODE_DFF0))|(0x01 << (AHD_MODE_DFF1)), "/usr/src/sys/dev/ic/aic79xx.c", 5019); |
| 5019 | AHD_MODE_DFF0_MSK|AHD_MODE_DFF1_MSK)ahd_assert_modes(ahd, (0x01 << (AHD_MODE_DFF0))|(0x01 << (AHD_MODE_DFF1)), (0x01 << (AHD_MODE_DFF0))|(0x01 << (AHD_MODE_DFF1)), "/usr/src/sys/dev/ic/aic79xx.c", 5019);; |
| 5020 | |
| 5021 | scb_index = ahd_get_scbptr(ahd); |
| 5022 | scb = ahd_lookup_scb(ahd, scb_index); |
| 5023 | |
| 5024 | /* |
| 5025 | * Release and reacquire the FIFO so we |
| 5026 | * have a clean slate. |
| 5027 | */ |
| 5028 | ahd_outb(ahd, DFFSXFRCTL, CLRCHN)(((ahd)->tags[(0x5a) >> 8])->write_1(((ahd)->bshs [(0x5a) >> 8]), ((0x5a) & 0xFF), (0x02))); |
| 5029 | wait = 1000; |
| 5030 | while (--wait && !(ahd_inb(ahd, MDFFSTAT)(((ahd)->tags[(0x5d) >> 8])->read_1(((ahd)->bshs [(0x5d) >> 8]), ((0x5d) & 0xFF))) & FIFOFREE0x01)) |
| 5031 | aic_delay(100)(*delay_func)(100); |
| 5032 | if (wait == 0) { |
| 5033 | ahd_print_path(ahd, scb); |
| 5034 | printf("ahd_reinitialize_dataptrs: Forcing FIFO free.\n"); |
| 5035 | ahd_outb(ahd, DFFSXFRCTL, RSTCHN|CLRSHCNT)(((ahd)->tags[(0x5a) >> 8])->write_1(((ahd)->bshs [(0x5a) >> 8]), ((0x5a) & 0xFF), (0x01|0x04))); |
| 5036 | } |
| 5037 | saved_modes = ahd_save_modes(ahd); |
| 5038 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 5039 | ahd_outb(ahd, DFFSTAT,(((ahd)->tags[(0x3f) >> 8])->write_1(((ahd)->bshs [(0x3f) >> 8]), ((0x3f) & 0xFF), ((((ahd)->tags[ (0x3f) >> 8])->read_1(((ahd)->bshs[(0x3f) >> 8]), ((0x3f) & 0xFF))) | (saved_modes == 0x11 ? 0x01 : 0x00 )))) |
| 5040 | ahd_inb(ahd, DFFSTAT)(((ahd)->tags[(0x3f) >> 8])->write_1(((ahd)->bshs [(0x3f) >> 8]), ((0x3f) & 0xFF), ((((ahd)->tags[ (0x3f) >> 8])->read_1(((ahd)->bshs[(0x3f) >> 8]), ((0x3f) & 0xFF))) | (saved_modes == 0x11 ? 0x01 : 0x00 )))) |
| 5041 | | (saved_modes == 0x11 ? CURRFIFO_1 : CURRFIFO_0))(((ahd)->tags[(0x3f) >> 8])->write_1(((ahd)->bshs [(0x3f) >> 8]), ((0x3f) & 0xFF), ((((ahd)->tags[ (0x3f) >> 8])->read_1(((ahd)->bshs[(0x3f) >> 8]), ((0x3f) & 0xFF))) | (saved_modes == 0x11 ? 0x01 : 0x00 )))); |
| 5042 | |
| 5043 | /* |
| 5044 | * Determine initial values for data_addr and data_cnt |
| 5045 | * for resuming the data phase. |
| 5046 | */ |
| 5047 | sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR0x184); |
| 5048 | sgptr &= SG_PTR_MASK0xFFFFFFF8; |
| 5049 | |
| 5050 | resid = (ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT0x180 + 2) << 16) |
| 5051 | | (ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT0x180 + 1) << 8) |
| 5052 | | ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT0x180); |
| 5053 | |
| 5054 | if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) { |
| 5055 | struct ahd_dma64_seg *sg; |
| 5056 | |
| 5057 | sg = ahd_sg_bus_to_virt(ahd, scb, sgptr); |
| 5058 | |
| 5059 | /* The residual sg_ptr always points to the next sg */ |
| 5060 | sg--; |
| 5061 | |
| 5062 | dataptr = aic_le64toh(sg->addr)((__uint64_t)(sg->addr)) |
| 5063 | + (aic_le32toh(sg->len)((__uint32_t)(sg->len)) & AHD_SG_LEN_MASK0x00FFFFFF) |
| 5064 | - resid; |
| 5065 | ahd_outl(ahd, HADDR0x70 + 4, dataptr >> 32); |
| 5066 | } else { |
| 5067 | struct ahd_dma_seg *sg; |
| 5068 | |
| 5069 | sg = ahd_sg_bus_to_virt(ahd, scb, sgptr); |
| 5070 | |
| 5071 | /* The residual sg_ptr always points to the next sg */ |
| 5072 | sg--; |
| 5073 | |
| 5074 | dataptr = aic_le32toh(sg->addr)((__uint32_t)(sg->addr)) |
| 5075 | + (aic_le32toh(sg->len)((__uint32_t)(sg->len)) & AHD_SG_LEN_MASK0x00FFFFFF) |
| 5076 | - resid; |
| 5077 | ahd_outb(ahd, HADDR + 4,(((ahd)->tags[(0x70 + 4) >> 8])->write_1(((ahd)-> bshs[(0x70 + 4) >> 8]), ((0x70 + 4) & 0xFF), ((((__uint32_t )(sg->len)) & ~0x00FFFFFF) >> 24))) |
| 5078 | (aic_le32toh(sg->len) & ~AHD_SG_LEN_MASK) >> 24)(((ahd)->tags[(0x70 + 4) >> 8])->write_1(((ahd)-> bshs[(0x70 + 4) >> 8]), ((0x70 + 4) & 0xFF), ((((__uint32_t )(sg->len)) & ~0x00FFFFFF) >> 24))); |
| 5079 | } |
| 5080 | ahd_outl(ahd, HADDR0x70, dataptr); |
| 5081 | ahd_outb(ahd, HCNT + 2, resid >> 16)(((ahd)->tags[(0x78 + 2) >> 8])->write_1(((ahd)-> bshs[(0x78 + 2) >> 8]), ((0x78 + 2) & 0xFF), (resid >> 16))); |
| 5082 | ahd_outb(ahd, HCNT + 1, resid >> 8)(((ahd)->tags[(0x78 + 1) >> 8])->write_1(((ahd)-> bshs[(0x78 + 1) >> 8]), ((0x78 + 1) & 0xFF), (resid >> 8))); |
| 5083 | ahd_outb(ahd, HCNT, resid)(((ahd)->tags[(0x78) >> 8])->write_1(((ahd)->bshs [(0x78) >> 8]), ((0x78) & 0xFF), (resid))); |
| 5084 | } |
| 5085 | |
| 5086 | /* |
| 5087 | * Handle the effects of issuing a bus device reset message. |
| 5088 | */ |
| 5089 | void |
| 5090 | ahd_handle_devreset(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 5091 | u_int lun, cam_status status, char *message, |
| 5092 | int verbose_level) |
| 5093 | { |
| 5094 | #ifdef AHD_TARGET_MODE |
| 5095 | struct ahd_tmode_tstate* tstate; |
| 5096 | #endif |
| 5097 | int found; |
| 5098 | |
| 5099 | found = ahd_abort_scbs(ahd, devinfo->target, devinfo->channel, |
| 5100 | lun, SCB_LIST_NULL0xFF00, devinfo->role, |
| 5101 | status); |
| 5102 | |
| 5103 | #ifdef AHD_TARGET_MODE |
| 5104 | /* |
| 5105 | * Send an immediate notify ccb to all target mord peripheral |
| 5106 | * drivers affected by this action. |
| 5107 | */ |
| 5108 | tstate = ahd->enabled_targets[devinfo->our_scsiid]; |
| 5109 | if (tstate != NULL((void *)0)) { |
| 5110 | u_int cur_lun; |
| 5111 | u_int max_lun; |
| 5112 | |
| 5113 | if (lun != CAM_LUN_WILDCARD-1) { |
| 5114 | cur_lun = 0; |
| 5115 | max_lun = AHD_NUM_LUNS256 - 1; |
| 5116 | } else { |
| 5117 | cur_lun = lun; |
| 5118 | max_lun = lun; |
| 5119 | } |
| 5120 | for (cur_lun <= max_lun; cur_lun++) { |
| 5121 | struct ahd_tmode_lstate* lstate; |
| 5122 | |
| 5123 | lstate = tstate->enabled_luns[cur_lun]; |
| 5124 | if (lstate == NULL((void *)0)) |
| 5125 | continue; |
| 5126 | |
| 5127 | ahd_queue_lstate_event(ahd, lstate, devinfo->our_scsiid, |
| 5128 | MSG_BUS_DEV_RESET0x0c, /*arg*/0); |
| 5129 | ahd_send_lstate_events(ahd, lstate); |
| 5130 | } |
| 5131 | } |
| 5132 | #endif |
| 5133 | |
| 5134 | /* |
| 5135 | * Go back to async/narrow transfers and renegotiate. |
| 5136 | */ |
| 5137 | ahd_set_width(ahd, devinfo, MSG_EXT_WDTR_BUS_8_BIT0x00, |
| 5138 | AHD_TRANS_CUR0x01, /*paused*/TRUE1); |
| 5139 | ahd_set_syncrate(ahd, devinfo, /*period*/0, /*offset*/0, |
| 5140 | /*ppr_options*/0, AHD_TRANS_CUR0x01, |
| 5141 | /*paused*/TRUE1); |
| 5142 | |
| 5143 | #if 0 |
| 5144 | if (status != CAM_SEL_TIMEOUT) |
| 5145 | ahd_send_async(ahd, devinfo->channel, devinfo->target, |
| 5146 | lun, AC_SENT_BDR, NULL((void *)0)); |
| 5147 | #endif |
| 5148 | |
| 5149 | if (message != NULL((void *)0) |
| 5150 | && (verbose_level <= bootverbose0)) |
| 5151 | printf("%s: %s on %c:%d. %d SCBs aborted\n", ahd_name(ahd), |
| 5152 | message, devinfo->channel, devinfo->target, found); |
| 5153 | } |
| 5154 | |
| 5155 | #ifdef AHD_TARGET_MODE |
| 5156 | void |
| 5157 | ahd_setup_target_msgin(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, |
| 5158 | struct scb *scb) |
| 5159 | { |
| 5160 | |
| 5161 | /* |
| 5162 | * To facilitate adding multiple messages together, |
| 5163 | * each routine should increment the index and len |
| 5164 | * variables instead of setting them explicitly. |
| 5165 | */ |
| 5166 | ahd->msgout_index = 0; |
| 5167 | ahd->msgout_len = 0; |
| 5168 | |
| 5169 | if (scb != NULL((void *)0) && (scb->flags & SCB_AUTO_NEGOTIATE) != 0) |
| 5170 | ahd_build_transfer_msg(ahd, devinfo); |
| 5171 | else |
| 5172 | panic("ahd_intr: AWAITING target message with no message"); |
| 5173 | |
| 5174 | ahd->msgout_index = 0; |
| 5175 | ahd->msg_type = MSG_TYPE_TARGET_MSGIN; |
| 5176 | } |
| 5177 | #endif |
| 5178 | /**************************** Initialization **********************************/ |
| 5179 | u_int |
| 5180 | ahd_sglist_size(struct ahd_softc *ahd) |
| 5181 | { |
| 5182 | bus_size_t list_size; |
| 5183 | |
| 5184 | list_size = sizeof(struct ahd_dma_seg) * AHD_NSEG((((((((64 * 1024)) >> 12) + 1)+((16)-1))/(16))*(16))); |
| 5185 | if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) |
| 5186 | list_size = sizeof(struct ahd_dma64_seg) * AHD_NSEG((((((((64 * 1024)) >> 12) + 1)+((16)-1))/(16))*(16))); |
| 5187 | return (list_size); |
| 5188 | } |
| 5189 | |
| 5190 | /* |
| 5191 | * Calculate the optimum S/G List allocation size. S/G elements used |
| 5192 | * for a given transaction must be physically contiguous. Assume the |
| 5193 | * OS will allocate full pages to us, so it doesn't make sense to request |
| 5194 | * less than a page. |
| 5195 | */ |
| 5196 | u_int |
| 5197 | ahd_sglist_allocsize(struct ahd_softc *ahd) |
| 5198 | { |
| 5199 | bus_size_t sg_list_increment; |
| 5200 | bus_size_t sg_list_size; |
| 5201 | bus_size_t max_list_size; |
| 5202 | bus_size_t best_list_size; |
| 5203 | |
| 5204 | /* Start out with the minimum required for AHD_NSEG. */ |
| 5205 | sg_list_increment = ahd_sglist_size(ahd); |
| 5206 | sg_list_size = sg_list_increment; |
| 5207 | |
| 5208 | /* Get us as close as possible to a page in size. */ |
| 5209 | while ((sg_list_size + sg_list_increment) <= PAGE_SIZE(1 << 12)) |
| 5210 | sg_list_size += sg_list_increment; |
| 5211 | |
| 5212 | /* |
| 5213 | * Try to reduce the amount of wastage by allocating |
| 5214 | * multiple pages. |
| 5215 | */ |
| 5216 | best_list_size = sg_list_size; |
| 5217 | max_list_size = roundup(sg_list_increment, PAGE_SIZE)((((sg_list_increment)+(((1 << 12))-1))/((1 << 12 )))*((1 << 12))); |
| 5218 | if (max_list_size < 4 * PAGE_SIZE(1 << 12)) |
| 5219 | max_list_size = 4 * PAGE_SIZE(1 << 12); |
| 5220 | if (max_list_size > (AHD_SCB_MAX_ALLOC512 * sg_list_increment)) |
| 5221 | max_list_size = (AHD_SCB_MAX_ALLOC512 * sg_list_increment); |
| 5222 | while ((sg_list_size + sg_list_increment) <= max_list_size |
| 5223 | && (sg_list_size % PAGE_SIZE(1 << 12)) != 0) { |
| 5224 | bus_size_t new_mod; |
| 5225 | bus_size_t best_mod; |
| 5226 | |
| 5227 | sg_list_size += sg_list_increment; |
| 5228 | new_mod = sg_list_size % PAGE_SIZE(1 << 12); |
| 5229 | best_mod = best_list_size % PAGE_SIZE(1 << 12); |
| 5230 | if (new_mod > best_mod || new_mod == 0) { |
| 5231 | best_list_size = sg_list_size; |
| 5232 | } |
| 5233 | } |
| 5234 | return (best_list_size); |
| 5235 | } |
| 5236 | |
| 5237 | /* |
| 5238 | * Perform initial initialization for a controller structure. |
| 5239 | */ |
| 5240 | struct ahd_softc * |
| 5241 | ahd_alloc(void *platform_arg, char *name) |
| 5242 | { |
| 5243 | struct ahd_softc *ahd = (struct ahd_softc *)platform_arg; |
| 5244 | |
| 5245 | ahd->seep_config = malloc(sizeof(*ahd->seep_config), |
| 5246 | M_DEVBUF2, M_NOWAIT0x0002); |
| 5247 | if (ahd->seep_config == NULL((void *)0)) |
| 5248 | return (NULL((void *)0)); |
| 5249 | |
| 5250 | TAILQ_INIT(&ahd->pending_scbs)do { (&ahd->pending_scbs)->tqh_first = ((void *)0); (&ahd->pending_scbs)->tqh_last = &(&ahd-> pending_scbs)->tqh_first; } while (0); |
| 5251 | LIST_INIT(&ahd->timedout_scbs)do { ((&ahd->timedout_scbs)->lh_first) = ((void *)0 ); } while (0); |
| 5252 | |
| 5253 | /* We don't know our unit number until the OSM sets it */ |
| 5254 | ahd->name = name; |
| 5255 | ahd->unit = -1; |
| 5256 | ahd->bus_description = NULL((void *)0); |
| 5257 | ahd->channel = 'A'; |
| 5258 | ahd->chip = AHD_NONE; |
| 5259 | ahd->features = AHD_FENONE; |
| 5260 | ahd->bugs = AHD_BUGNONE; |
| 5261 | ahd->flags = AHD_SPCHK_ENB_A|AHD_RESET_BUS_A|AHD_TERM_ENB_A |
| 5262 | | AHD_EXTENDED_TRANS_A|AHD_STPWLEVEL_A; |
| 5263 | ahd->int_coalescing_timer = AHD_INT_COALESCING_TIMER_DEFAULT250; |
| 5264 | ahd->int_coalescing_maxcmds = AHD_INT_COALESCING_MAXCMDS_DEFAULT10; |
| 5265 | ahd->int_coalescing_mincmds = AHD_INT_COALESCING_MINCMDS_DEFAULT5; |
| 5266 | ahd->int_coalescing_threshold = AHD_INT_COALESCING_THRESHOLD_DEFAULT2000; |
| 5267 | ahd->int_coalescing_stop_threshold = |
| 5268 | AHD_INT_COALESCING_STOP_THRESHOLD_DEFAULT1000; |
| 5269 | |
| 5270 | #ifdef AHD_DEBUG |
| 5271 | if ((ahd_debug & AHD_SHOW_MEMORY) != 0) { |
| 5272 | printf("%s: scb size = 0x%x, hscb size = 0x%x\n", |
| 5273 | ahd_name(ahd), (u_int)sizeof(struct scb), |
| 5274 | (u_int)sizeof(struct hardware_scb)); |
| 5275 | } |
| 5276 | #endif |
| 5277 | return (ahd); |
| 5278 | } |
| 5279 | |
| 5280 | int |
| 5281 | ahd_softc_init(struct ahd_softc *ahd) |
| 5282 | { |
| 5283 | |
| 5284 | ahd->unpause = 0; |
| 5285 | ahd->pause = PAUSE0x04; |
| 5286 | return (0); |
| 5287 | } |
| 5288 | |
| 5289 | void |
| 5290 | ahd_softc_insert(struct ahd_softc *ahd) |
| 5291 | { |
| 5292 | struct ahd_softc *list_ahd; |
| 5293 | |
| 5294 | #if AHD_PCI_CONFIG > 0 |
| 5295 | /* |
| 5296 | * Second Function PCI devices need to inherit some |
| 5297 | * settings from function 0. |
| 5298 | */ |
| 5299 | if ((ahd->features & AHD_MULTI_FUNC) != 0) { |
| 5300 | TAILQ_FOREACH(list_ahd, &ahd_tailq, links)for((list_ahd) = ((&ahd_tailq)->tqh_first); (list_ahd) != ((void *)0); (list_ahd) = ((list_ahd)->links.tqe_next) ) { |
| 5301 | aic_dev_softc_t list_pci; |
| 5302 | aic_dev_softc_t pci; |
| 5303 | |
| 5304 | list_pci = list_ahd->dev_softc; |
| 5305 | pci = ahd->dev_softc; |
| 5306 | if (aic_get_pci_slot(list_pci)((list_pci)->pa_device) == aic_get_pci_slot(pci)((pci)->pa_device) |
| 5307 | && aic_get_pci_bus(list_pci)((list_pci)->pa_bus) == aic_get_pci_bus(pci)((pci)->pa_bus)) { |
| 5308 | struct ahd_softc *master; |
| 5309 | struct ahd_softc *slave; |
| 5310 | |
| 5311 | if (aic_get_pci_function(list_pci)((list_pci)->pa_function) == 0) { |
| 5312 | master = list_ahd; |
| 5313 | slave = ahd; |
| 5314 | } else { |
| 5315 | master = ahd; |
| 5316 | slave = list_ahd; |
| 5317 | } |
| 5318 | slave->flags &= ~AHD_BIOS_ENABLED; |
| 5319 | slave->flags |= |
| 5320 | master->flags & AHD_BIOS_ENABLED; |
| 5321 | break; |
| 5322 | } |
| 5323 | } |
| 5324 | } |
| 5325 | #endif |
| 5326 | |
| 5327 | /* |
| 5328 | * Insertion sort into our list of softcs. |
| 5329 | */ |
| 5330 | list_ahd = TAILQ_FIRST(&ahd_tailq)((&ahd_tailq)->tqh_first); |
| 5331 | while (list_ahd != NULL((void *)0) |
| 5332 | && ahd_softc_comp(ahd, list_ahd) <= 0) |
| 5333 | list_ahd = TAILQ_NEXT(list_ahd, links)((list_ahd)->links.tqe_next); |
| 5334 | if (list_ahd != NULL((void *)0)) |
| 5335 | TAILQ_INSERT_BEFORE(list_ahd, ahd, links)do { (ahd)->links.tqe_prev = (list_ahd)->links.tqe_prev ; (ahd)->links.tqe_next = (list_ahd); *(list_ahd)->links .tqe_prev = (ahd); (list_ahd)->links.tqe_prev = &(ahd) ->links.tqe_next; } while (0); |
| 5336 | else |
| 5337 | TAILQ_INSERT_TAIL(&ahd_tailq, ahd, links)do { (ahd)->links.tqe_next = ((void *)0); (ahd)->links. tqe_prev = (&ahd_tailq)->tqh_last; *(&ahd_tailq)-> tqh_last = (ahd); (&ahd_tailq)->tqh_last = &(ahd)-> links.tqe_next; } while (0); |
| 5338 | ahd->init_level++; |
| 5339 | } |
| 5340 | |
| 5341 | /* |
| 5342 | * Verify that the passed in softc pointer is for a |
| 5343 | * controller that is still configured. |
| 5344 | */ |
| 5345 | struct ahd_softc * |
| 5346 | ahd_find_softc(struct ahd_softc *ahd) |
| 5347 | { |
| 5348 | struct ahd_softc *list_ahd; |
| 5349 | |
| 5350 | TAILQ_FOREACH(list_ahd, &ahd_tailq, links)for((list_ahd) = ((&ahd_tailq)->tqh_first); (list_ahd) != ((void *)0); (list_ahd) = ((list_ahd)->links.tqe_next) ) { |
| 5351 | if (list_ahd == ahd) |
| 5352 | return (ahd); |
| 5353 | } |
| 5354 | return (NULL((void *)0)); |
| 5355 | } |
| 5356 | |
| 5357 | void |
| 5358 | ahd_set_unit(struct ahd_softc *ahd, int unit) |
| 5359 | { |
| 5360 | ahd->unit = unit; |
| 5361 | } |
| 5362 | |
| 5363 | void |
| 5364 | ahd_set_name(struct ahd_softc *ahd, char *name) |
| 5365 | { |
| 5366 | if (ahd->name != NULL((void *)0)) |
| 5367 | free(ahd->name, M_DEVBUF2, 0); |
| 5368 | ahd->name = name; |
| 5369 | } |
| 5370 | |
| 5371 | void |
| 5372 | ahd_free(struct ahd_softc *ahd) |
| 5373 | { |
| 5374 | int i; |
| 5375 | |
| 5376 | switch (ahd->init_level) { |
| 5377 | default: |
| 5378 | case 2: |
| 5379 | ahd_shutdown(ahd); |
| 5380 | TAILQ_REMOVE(&ahd_tailq, ahd, links)do { if (((ahd)->links.tqe_next) != ((void *)0)) (ahd)-> links.tqe_next->links.tqe_prev = (ahd)->links.tqe_prev; else (&ahd_tailq)->tqh_last = (ahd)->links.tqe_prev ; *(ahd)->links.tqe_prev = (ahd)->links.tqe_next; ((ahd )->links.tqe_prev) = ((void *)-1); ((ahd)->links.tqe_next ) = ((void *)-1); } while (0); |
| 5381 | /* FALLTHROUGH */ |
| 5382 | case 1: |
| 5383 | ahd_freedmamem(ahd, &ahd->shared_data_map); |
| 5384 | break; |
| 5385 | case 0: |
| 5386 | break; |
| 5387 | } |
| 5388 | |
| 5389 | ahd_fini_scbdata(ahd); |
| 5390 | for (i = 0; i < AHD_NUM_TARGETS16; i++) { |
| 5391 | struct ahd_tmode_tstate *tstate; |
| 5392 | |
| 5393 | tstate = ahd->enabled_targets[i]; |
| 5394 | if (tstate != NULL((void *)0)) { |
| 5395 | #if AHD_TARGET_MODE |
| 5396 | int j; |
| 5397 | |
| 5398 | for (j = 0; j < AHD_NUM_LUNS256; j++) { |
| 5399 | struct ahd_tmode_lstate *lstate; |
| 5400 | |
| 5401 | lstate = tstate->enabled_luns[j]; |
| 5402 | if (lstate != NULL((void *)0)) { |
| 5403 | xpt_free_path(lstate->path); |
| 5404 | free(lstate, M_DEVBUF2, 0); |
| 5405 | } |
| 5406 | } |
| 5407 | #endif |
| 5408 | free(tstate, M_DEVBUF2, 0); |
| 5409 | } |
| 5410 | } |
| 5411 | #if AHD_TARGET_MODE |
| 5412 | if (ahd->black_hole != NULL((void *)0)) { |
| 5413 | xpt_free_path(ahd->black_hole->path); |
| 5414 | free(ahd->black_hole, M_DEVBUF2, 0); |
| 5415 | } |
| 5416 | #endif |
| 5417 | if (ahd->seep_config != NULL((void *)0)) |
| 5418 | free(ahd->seep_config, M_DEVBUF2, 0); |
| 5419 | if (ahd->saved_stack != NULL((void *)0)) |
| 5420 | free(ahd->saved_stack, M_DEVBUF2, 0); |
| 5421 | return; |
| 5422 | } |
| 5423 | |
| 5424 | void |
| 5425 | ahd_shutdown(void *arg) |
| 5426 | { |
| 5427 | struct ahd_softc *ahd; |
| 5428 | |
| 5429 | ahd = (struct ahd_softc *)arg; |
| 5430 | |
| 5431 | /* |
| 5432 | * Stop periodic timer callbacks. |
| 5433 | */ |
| 5434 | aic_timer_stoptimeout_del(&ahd->reset_timer); |
| 5435 | aic_timer_stoptimeout_del(&ahd->stat_timer); |
| 5436 | |
| 5437 | /* This will reset most registers to 0, but not all */ |
| 5438 | ahd_reset(ahd, /*reinit*/FALSE0); |
| 5439 | } |
| 5440 | |
| 5441 | /* |
| 5442 | * Reset the controller and record some information about it |
| 5443 | * that is only available just after a reset. If "reinit" is |
| 5444 | * non-zero, this reset occurred after initial configuration |
| 5445 | * and the caller requests that the chip be fully reinitialized |
| 5446 | * to a runable state. Chip interrupts are *not* enabled after |
| 5447 | * a reinitialization. The caller must enable interrupts via |
| 5448 | * ahd_intr_enable(). |
| 5449 | */ |
| 5450 | int |
| 5451 | ahd_reset(struct ahd_softc *ahd, int reinit) |
| 5452 | { |
| 5453 | const pci_chipset_tag_t pc = ahd->dev_softc->pa_pc; |
| 5454 | const pcitag_t tag = ahd->dev_softc->pa_tag; |
| 5455 | u_int sxfrctl1; |
| 5456 | int wait; |
| 5457 | pcireg_t cmd; |
| 5458 | |
| 5459 | /* |
| 5460 | * Preserve the value of the SXFRCTL1 register for all channels. |
| 5461 | * It contains settings that affect termination and we don't want |
| 5462 | * to disturb the integrity of the bus. |
| 5463 | */ |
| 5464 | ahd_pause(ahd); |
| 5465 | ahd_update_modes(ahd); |
| 5466 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 5467 | sxfrctl1 = ahd_inb(ahd, SXFRCTL1)(((ahd)->tags[(0x3d) >> 8])->read_1(((ahd)->bshs [(0x3d) >> 8]), ((0x3d) & 0xFF))); |
| 5468 | |
| 5469 | cmd = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG0x04); |
| 5470 | |
| 5471 | if ((ahd->bugs & AHD_PCIX_CHIPRST_BUG) != 0) { |
| 5472 | pcireg_t mod_cmd; |
| 5473 | |
| 5474 | /* |
| 5475 | * A4 Razor #632 |
| 5476 | * During the assertion of CHIPRST, the chip |
| 5477 | * does not disable its parity logic prior to |
| 5478 | * the start of the reset. This may cause a |
| 5479 | * parity error to be detected and thus a |
| 5480 | * spurious SERR or PERR assertion. Disable |
| 5481 | * PERR and SERR responses during the CHIPRST. |
| 5482 | */ |
| 5483 | mod_cmd = cmd & ~(PCI_COMMAND_PARITY_ENABLE0x00000040|PCI_COMMAND_SERR_ENABLE0x00000100); |
| 5484 | pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG0x04, mod_cmd); |
| 5485 | } |
| 5486 | ahd_outb(ahd, HCNTRL, CHIPRST | ahd->pause)(((ahd)->tags[(0x05) >> 8])->write_1(((ahd)->bshs [(0x05) >> 8]), ((0x05) & 0xFF), (0x01 | ahd->pause ))); |
| 5487 | |
| 5488 | /* |
| 5489 | * Ensure that the reset has finished. We delay 1000us |
| 5490 | * prior to reading the register to make sure the chip |
| 5491 | * has sufficiently completed its reset to handle register |
| 5492 | * accesses. |
| 5493 | */ |
| 5494 | wait = 1000; |
| 5495 | do { |
| 5496 | aic_delay(1000)(*delay_func)(1000); |
| 5497 | } while (--wait && !(ahd_inb(ahd, HCNTRL)(((ahd)->tags[(0x05) >> 8])->read_1(((ahd)->bshs [(0x05) >> 8]), ((0x05) & 0xFF))) & CHIPRSTACK0x01)); |
| 5498 | |
| 5499 | if (wait == 0) { |
| 5500 | printf("%s: WARNING - Failed chip reset! " |
| 5501 | "Trying to initialize anyway.\n", ahd_name(ahd)); |
| 5502 | } |
| 5503 | ahd_outb(ahd, HCNTRL, ahd->pause)(((ahd)->tags[(0x05) >> 8])->write_1(((ahd)->bshs [(0x05) >> 8]), ((0x05) & 0xFF), (ahd->pause))); |
| 5504 | |
| 5505 | if ((ahd->bugs & AHD_PCIX_CHIPRST_BUG) != 0) { |
| 5506 | /* |
| 5507 | * Clear any latched PCI error status and restore |
| 5508 | * previous SERR and PERR response enables. |
| 5509 | */ |
| 5510 | pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG0x04, cmd | |
| 5511 | (PCI_STATUS_PARITY_ERROR0x01000000 | PCI_STATUS_TARGET_TARGET_ABORT0x08000000 | |
| 5512 | PCI_STATUS_MASTER_TARGET_ABORT0x10000000 | PCI_STATUS_MASTER_ABORT0x20000000 | |
| 5513 | PCI_STATUS_SPECIAL_ERROR0x40000000)); |
| 5514 | |
| 5515 | } |
| 5516 | |
| 5517 | /* |
| 5518 | * Mode should be SCSI after a chip reset, but lets |
| 5519 | * set it just to be safe. We touch the MODE_PTR |
| 5520 | * register directly so as to bypass the lazy update |
| 5521 | * code in ahd_set_modes(). |
| 5522 | */ |
| 5523 | ahd_known_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 5524 | ahd_outb(ahd, MODE_PTR,(((ahd)->tags[(0x00) >> 8])->write_1(((ahd)->bshs [(0x00) >> 8]), ((0x00) & 0xFF), (ahd_build_mode_state (ahd, AHD_MODE_SCSI, AHD_MODE_SCSI)))) |
| 5525 | ahd_build_mode_state(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI))(((ahd)->tags[(0x00) >> 8])->write_1(((ahd)->bshs [(0x00) >> 8]), ((0x00) & 0xFF), (ahd_build_mode_state (ahd, AHD_MODE_SCSI, AHD_MODE_SCSI)))); |
| 5526 | |
| 5527 | /* |
| 5528 | * Restore SXFRCTL1. |
| 5529 | * |
| 5530 | * We must always initialize STPWEN to 1 before we |
| 5531 | * restore the saved values. STPWEN is initialized |
| 5532 | * to a tri-state condition which can only be cleared |
| 5533 | * by turning it on. |
| 5534 | */ |
| 5535 | ahd_outb(ahd, SXFRCTL1, sxfrctl1|STPWEN)(((ahd)->tags[(0x3d) >> 8])->write_1(((ahd)->bshs [(0x3d) >> 8]), ((0x3d) & 0xFF), (sxfrctl1|0x01))); |
| 5536 | ahd_outb(ahd, SXFRCTL1, sxfrctl1)(((ahd)->tags[(0x3d) >> 8])->write_1(((ahd)->bshs [(0x3d) >> 8]), ((0x3d) & 0xFF), (sxfrctl1))); |
| 5537 | |
| 5538 | /* Determine chip configuration */ |
| 5539 | ahd->features &= ~AHD_WIDE; |
| 5540 | if ((ahd_inb(ahd, SBLKCTL)(((ahd)->tags[(0x4a) >> 8])->read_1(((ahd)->bshs [(0x4a) >> 8]), ((0x4a) & 0xFF))) & SELWIDE0x02) != 0) |
| 5541 | ahd->features |= AHD_WIDE; |
| 5542 | |
| 5543 | /* |
| 5544 | * If a recovery action has forced a chip reset, |
| 5545 | * re-initialize the chip to our liking. |
| 5546 | */ |
| 5547 | if (reinit != 0) |
| 5548 | ahd_chip_init(ahd); |
| 5549 | |
| 5550 | return (0); |
| 5551 | } |
| 5552 | |
| 5553 | /* |
| 5554 | * Determine the number of SCBs available on the controller |
| 5555 | */ |
| 5556 | int |
| 5557 | ahd_probe_scbs(struct ahd_softc *ahd) { |
| 5558 | int i; |
| 5559 | |
| 5560 | AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 5561); |
| 5561 | ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK))ahd_assert_modes(ahd, ~((0x01 << (AHD_MODE_UNKNOWN))|(0x01 << (AHD_MODE_CFG))), ~((0x01 << (AHD_MODE_UNKNOWN ))|(0x01 << (AHD_MODE_CFG))), "/usr/src/sys/dev/ic/aic79xx.c" , 5561);; |
| 5562 | for (i = 0; i < AHD_SCB_MAX512; i++) { |
| 5563 | int j; |
| 5564 | |
| 5565 | ahd_set_scbptr(ahd, i); |
| 5566 | ahd_outw(ahd, SCB_BASE0x180, i); |
| 5567 | for (j = 2; j < 64; j++) |
| 5568 | ahd_outb(ahd, SCB_BASE+j, 0)(((ahd)->tags[(0x180 +j) >> 8])->write_1(((ahd)-> bshs[(0x180 +j) >> 8]), ((0x180 +j) & 0xFF), (0))); |
| 5569 | /* Start out life as unallocated (needing an abort) */ |
| 5570 | ahd_outb(ahd, SCB_CONTROL, MK_MESSAGE)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (0x10))); |
| 5571 | if (ahd_inw_scbram(ahd, SCB_BASE0x180) != i) |
| 5572 | break; |
| 5573 | ahd_set_scbptr(ahd, 0); |
| 5574 | if (ahd_inw_scbram(ahd, SCB_BASE0x180) != 0) |
| 5575 | break; |
| 5576 | } |
| 5577 | return (i); |
| 5578 | } |
| 5579 | |
| 5580 | void |
| 5581 | ahd_initialize_hscbs(struct ahd_softc *ahd) |
| 5582 | { |
| 5583 | int i; |
| 5584 | |
| 5585 | for (i = 0; i < ahd->scb_data.maxhscbs; i++) { |
| 5586 | ahd_set_scbptr(ahd, i); |
| 5587 | |
| 5588 | /* Clear the control byte. */ |
| 5589 | ahd_outb(ahd, SCB_CONTROL, 0)(((ahd)->tags[(0x192) >> 8])->write_1(((ahd)-> bshs[(0x192) >> 8]), ((0x192) & 0xFF), (0))); |
| 5590 | |
| 5591 | /* Set the next pointer */ |
| 5592 | ahd_outw(ahd, SCB_NEXT0x1ac, SCB_LIST_NULL0xFF00); |
| 5593 | } |
| 5594 | } |
| 5595 | |
| 5596 | int |
| 5597 | ahd_init_scbdata(struct ahd_softc *ahd) |
| 5598 | { |
| 5599 | struct scb_data *scb_data; |
| 5600 | int i; |
| 5601 | |
| 5602 | scb_data = &ahd->scb_data; |
| 5603 | TAILQ_INIT(&scb_data->free_scbs)do { (&scb_data->free_scbs)->tqh_first = ((void *)0 ); (&scb_data->free_scbs)->tqh_last = &(&scb_data ->free_scbs)->tqh_first; } while (0); |
| 5604 | SLIST_INIT(&scb_data->hscb_maps){ ((&scb_data->hscb_maps)->slh_first) = ((void *)0) ; }; |
| 5605 | SLIST_INIT(&scb_data->sg_maps){ ((&scb_data->sg_maps)->slh_first) = ((void *)0); }; |
| 5606 | SLIST_INIT(&scb_data->sense_maps){ ((&scb_data->sense_maps)->slh_first) = ((void *)0 ); }; |
| 5607 | mtx_init(&ahd->sc_scb_mtx, IPL_BIO)do { (void)(((void *)0)); (void)(0); __mtx_init((&ahd-> sc_scb_mtx), ((((0x3)) > 0x0 && ((0x3)) < 0x9) ? 0x9 : ((0x3)))); } while (0); |
| 5608 | scsi_iopool_init(&ahd->sc_iopool, ahd, ahd_scb_alloc, ahd_scb_free); |
| 5609 | |
| 5610 | /* Determine the number of hardware SCBs and initialize them */ |
| 5611 | scb_data->maxhscbs = ahd_probe_scbs(ahd); |
| 5612 | if (scb_data->maxhscbs == 0) { |
| 5613 | printf("%s: No SCB space found\n", ahd_name(ahd)); |
| 5614 | return (ENXIO6); |
| 5615 | } |
| 5616 | |
| 5617 | ahd_initialize_hscbs(ahd); |
| 5618 | |
| 5619 | /* |
| 5620 | * Create our DMA tags. These tags define the kinds of device |
| 5621 | * accessible memory allocations and memory mappings we will |
| 5622 | * need to perform during normal operation. |
| 5623 | * |
| 5624 | * Unless we need to further restrict the allocation, we rely |
| 5625 | * on the restrictions of the parent dmat, hence the common |
| 5626 | * use of MAXADDR and MAXSIZE. |
| 5627 | */ |
| 5628 | |
| 5629 | /* Perform initial CCB allocation */ |
| 5630 | do { |
| 5631 | i = scb_data->numscbs; |
| 5632 | ahd_alloc_scbs(ahd); |
| 5633 | } while ((i != scb_data->numscbs) && |
| 5634 | (scb_data->numscbs < AHD_SCB_MAX_ALLOC512)); |
| 5635 | |
| 5636 | if (scb_data->numscbs != AHD_SCB_MAX_ALLOC512) { |
| 5637 | printf("%s: ahd_init_scbdata - " |
| 5638 | "Unable to allocate initial scbs\n", |
| 5639 | ahd_name(ahd)); |
| 5640 | goto error_exit; |
| 5641 | } |
| 5642 | |
| 5643 | /* |
| 5644 | * Note that we were successful |
| 5645 | */ |
| 5646 | return (0); |
| 5647 | |
| 5648 | error_exit: |
| 5649 | |
| 5650 | return (ENOMEM12); |
| 5651 | } |
| 5652 | |
| 5653 | struct scb * |
| 5654 | ahd_find_scb_by_tag(struct ahd_softc *ahd, u_int tag) |
| 5655 | { |
| 5656 | struct scb *scb; |
| 5657 | |
| 5658 | /* |
| 5659 | * Look on the pending list. |
| 5660 | */ |
| 5661 | TAILQ_FOREACH(scb, &ahd->pending_scbs, next)for((scb) = ((&ahd->pending_scbs)->tqh_first); (scb ) != ((void *)0); (scb) = ((scb)->next.tqe_next)) { |
| 5662 | if (SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)) == tag) |
| 5663 | return (scb); |
| 5664 | } |
| 5665 | |
| 5666 | /* |
| 5667 | * And finally on the generic free list. |
| 5668 | */ |
| 5669 | TAILQ_FOREACH(scb, &ahd->scb_data.free_scbs, next)for((scb) = ((&ahd->scb_data.free_scbs)->tqh_first) ; (scb) != ((void *)0); (scb) = ((scb)->next.tqe_next)) { |
| 5670 | if (SCB_GET_TAG(scb)((__uint16_t)(scb->hscb->tag)) == tag) |
| 5671 | return (scb); |
| 5672 | } |
| 5673 | |
| 5674 | return (NULL((void *)0)); |
| 5675 | } |
| 5676 | |
| 5677 | void |
| 5678 | ahd_fini_scbdata(struct ahd_softc *ahd) |
| 5679 | { |
| 5680 | struct scb_data *scb_data; |
| 5681 | |
| 5682 | scb_data = &ahd->scb_data; |
| 5683 | if (scb_data == NULL((void *)0)) |
| 5684 | return; |
| 5685 | |
| 5686 | switch (scb_data->init_level) { |
| 5687 | default: |
| 5688 | case 3: |
| 5689 | { |
| 5690 | struct map_node *sns_map; |
| 5691 | |
| 5692 | while ((sns_map = SLIST_FIRST(&scb_data->sense_maps)((&scb_data->sense_maps)->slh_first)) != NULL((void *)0)) { |
| 5693 | SLIST_REMOVE_HEAD(&scb_data->sense_maps, links)do { (&scb_data->sense_maps)->slh_first = (&scb_data ->sense_maps)->slh_first->links.sle_next; } while (0 ); |
| 5694 | ahd_freedmamem(ahd, sns_map); |
| 5695 | free(sns_map, M_DEVBUF2, 0); |
| 5696 | } |
| 5697 | /* FALLTHROUGH */ |
| 5698 | } |
| 5699 | case 2: |
| 5700 | { |
| 5701 | struct map_node *sg_map; |
| 5702 | |
| 5703 | while ((sg_map = SLIST_FIRST(&scb_data->sg_maps)((&scb_data->sg_maps)->slh_first)) != NULL((void *)0)) { |
| 5704 | SLIST_REMOVE_HEAD(&scb_data->sg_maps, links)do { (&scb_data->sg_maps)->slh_first = (&scb_data ->sg_maps)->slh_first->links.sle_next; } while (0); |
| 5705 | ahd_freedmamem(ahd, sg_map); |
| 5706 | free(sg_map, M_DEVBUF2, 0); |
| 5707 | } |
| 5708 | /* FALLTHROUGH */ |
| 5709 | } |
| 5710 | case 1: |
| 5711 | { |
| 5712 | struct map_node *hscb_map; |
| 5713 | |
| 5714 | while ((hscb_map = SLIST_FIRST(&scb_data->hscb_maps)((&scb_data->hscb_maps)->slh_first)) != NULL((void *)0)) { |
| 5715 | SLIST_REMOVE_HEAD(&scb_data->hscb_maps, links)do { (&scb_data->hscb_maps)->slh_first = (&scb_data ->hscb_maps)->slh_first->links.sle_next; } while (0); |
| 5716 | ahd_freedmamem(ahd, hscb_map); |
| 5717 | free(hscb_map, M_DEVBUF2, 0); |
| 5718 | } |
| 5719 | /* FALLTHROUGH */ |
| 5720 | } |
| 5721 | case 0: |
| 5722 | break; |
| 5723 | } |
| 5724 | } |
| 5725 | |
| 5726 | /* |
| 5727 | * DSP filter Bypass must be enabled until the first selection |
| 5728 | * after a change in bus mode (Razor #491 and #493). |
| 5729 | */ |
| 5730 | void |
| 5731 | ahd_setup_iocell_workaround(struct ahd_softc *ahd) |
| 5732 | { |
| 5733 | ahd_mode_state saved_modes; |
| 5734 | |
| 5735 | saved_modes = ahd_save_modes(ahd); |
| 5736 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 5737 | ahd_outb(ahd, DSPDATACTL, ahd_inb(ahd, DSPDATACTL)(((ahd)->tags[(0xc1) >> 8])->write_1(((ahd)->bshs [(0xc1) >> 8]), ((0xc1) & 0xFF), ((((ahd)->tags[ (0xc1) >> 8])->read_1(((ahd)->bshs[(0xc1) >> 8]), ((0xc1) & 0xFF))) | 0x80 | 0x04 | 0x02))) |
| 5738 | | BYPASSENAB | RCVROFFSTDIS | XMITOFFSTDIS)(((ahd)->tags[(0xc1) >> 8])->write_1(((ahd)->bshs [(0xc1) >> 8]), ((0xc1) & 0xFF), ((((ahd)->tags[ (0xc1) >> 8])->read_1(((ahd)->bshs[(0xc1) >> 8]), ((0xc1) & 0xFF))) | 0x80 | 0x04 | 0x02))); |
| 5739 | ahd_outb(ahd, SIMODE0, ahd_inb(ahd, SIMODE0) | (ENSELDO|ENSELDI))(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), ((((ahd)->tags[ (0x4b) >> 8])->read_1(((ahd)->bshs[(0x4b) >> 8]), ((0x4b) & 0xFF))) | (0x40|0x20)))); |
| 5740 | #ifdef AHD_DEBUG |
| 5741 | if ((ahd_debug & AHD_SHOW_MISC) != 0) |
| 5742 | printf("%s: Setting up iocell workaround\n", ahd_name(ahd)); |
| 5743 | #endif |
| 5744 | ahd_restore_modes(ahd, saved_modes); |
| 5745 | ahd->flags &= ~AHD_HAD_FIRST_SEL; |
| 5746 | } |
| 5747 | |
| 5748 | void |
| 5749 | ahd_iocell_first_selection(struct ahd_softc *ahd) |
| 5750 | { |
| 5751 | ahd_mode_state saved_modes; |
| 5752 | u_int sblkctl; |
| 5753 | |
| 5754 | if ((ahd->flags & AHD_HAD_FIRST_SEL) != 0) |
| 5755 | return; |
| 5756 | saved_modes = ahd_save_modes(ahd); |
| 5757 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 5758 | sblkctl = ahd_inb(ahd, SBLKCTL)(((ahd)->tags[(0x4a) >> 8])->read_1(((ahd)->bshs [(0x4a) >> 8]), ((0x4a) & 0xFF))); |
| 5759 | ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG); |
| 5760 | #ifdef AHD_DEBUG |
| 5761 | if ((ahd_debug & AHD_SHOW_MISC) != 0) |
| 5762 | printf("%s: iocell first selection\n", ahd_name(ahd)); |
| 5763 | #endif |
| 5764 | if ((sblkctl & ENAB400x08) != 0) { |
| 5765 | ahd_outb(ahd, DSPDATACTL,(((ahd)->tags[(0xc1) >> 8])->write_1(((ahd)->bshs [(0xc1) >> 8]), ((0xc1) & 0xFF), ((((ahd)->tags[ (0xc1) >> 8])->read_1(((ahd)->bshs[(0xc1) >> 8]), ((0xc1) & 0xFF))) & ~0x80))) |
| 5766 | ahd_inb(ahd, DSPDATACTL) & ~BYPASSENAB)(((ahd)->tags[(0xc1) >> 8])->write_1(((ahd)->bshs [(0xc1) >> 8]), ((0xc1) & 0xFF), ((((ahd)->tags[ (0xc1) >> 8])->read_1(((ahd)->bshs[(0xc1) >> 8]), ((0xc1) & 0xFF))) & ~0x80))); |
| 5767 | #ifdef AHD_DEBUG |
| 5768 | if ((ahd_debug & AHD_SHOW_MISC) != 0) |
| 5769 | printf("%s: BYPASS now disabled\n", ahd_name(ahd)); |
| 5770 | #endif |
| 5771 | } |
| 5772 | ahd_outb(ahd, SIMODE0, ahd_inb(ahd, SIMODE0) & ~(ENSELDO|ENSELDI))(((ahd)->tags[(0x4b) >> 8])->write_1(((ahd)->bshs [(0x4b) >> 8]), ((0x4b) & 0xFF), ((((ahd)->tags[ (0x4b) >> 8])->read_1(((ahd)->bshs[(0x4b) >> 8]), ((0x4b) & 0xFF))) & ~(0x40|0x20)))); |
| 5773 | ahd_outb(ahd, CLRINT, CLRSCSIINT)(((ahd)->tags[(0x03) >> 8])->write_1(((ahd)->bshs [(0x03) >> 8]), ((0x03) & 0xFF), (0x08))); |
| 5774 | ahd_restore_modes(ahd, saved_modes); |
| 5775 | ahd->flags |= AHD_HAD_FIRST_SEL; |
| 5776 | } |
| 5777 | |
| 5778 | /* |
| 5779 | * Get a free scb. If there are none, see if we can allocate a new SCB. |
| 5780 | */ |
| 5781 | void * |
| 5782 | ahd_scb_alloc(void *xahd) |
| 5783 | { |
| 5784 | struct ahd_softc *ahd = xahd; |
| 5785 | struct scb *scb; |
| 5786 | |
| 5787 | mtx_enter(&ahd->sc_scb_mtx); |
| 5788 | scb = TAILQ_FIRST(&ahd->scb_data.free_scbs)((&ahd->scb_data.free_scbs)->tqh_first); |
| 5789 | if (scb) { |
| 5790 | TAILQ_REMOVE(&ahd->scb_data.free_scbs, scb, next)do { if (((scb)->next.tqe_next) != ((void *)0)) (scb)-> next.tqe_next->next.tqe_prev = (scb)->next.tqe_prev; else (&ahd->scb_data.free_scbs)->tqh_last = (scb)->next .tqe_prev; *(scb)->next.tqe_prev = (scb)->next.tqe_next ; ((scb)->n |