mpt_pci.c revision 103829
1101704Smjacob/* $FreeBSD: head/sys/dev/mpt/mpt_pci.c 103829 2002-09-23 05:16:00Z mjacob $ */ 2101704Smjacob/* 3102596Smjacob * PCI specific probe and attach routines for LSI Fusion Adapters 4101704Smjacob * FreeBSD Version. 5101704Smjacob * 6101704Smjacob * Copyright (c) 2000, 2001 by Greg Ansley 7101704Smjacob * Partially derived from Matt Jacob's ISP driver. 8101704Smjacob * 9101704Smjacob * Redistribution and use in source and binary forms, with or without 10101704Smjacob * modification, are permitted provided that the following conditions 11101704Smjacob * are met: 12101704Smjacob * 1. Redistributions of source code must retain the above copyright 13101704Smjacob * notice immediately at the beginning of the file, without modification, 14101704Smjacob * this list of conditions, and the following disclaimer. 15101704Smjacob * 2. The name of the author may not be used to endorse or promote products 16101704Smjacob * derived from this software without specific prior written permission. 17101704Smjacob * 18101704Smjacob * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19101704Smjacob * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20101704Smjacob * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21101704Smjacob * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22101704Smjacob * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23101704Smjacob * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24101704Smjacob * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25101704Smjacob * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26101704Smjacob * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27101704Smjacob * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28101704Smjacob * SUCH DAMAGE. 29101704Smjacob */ 30101704Smjacob/* 31101704Smjacob * Additional Copyright (c) 2002 by Matthew Jacob under same license. 32101704Smjacob */ 33101704Smjacob 34101704Smjacob#include <sys/param.h> 35101704Smjacob#include <sys/systm.h> 36101704Smjacob#include <sys/kernel.h> 37102199Smjacob#include <sys/module.h> 38101704Smjacob#include <sys/bus.h> 39102199Smjacob 40101704Smjacob#include <pci/pcireg.h> 41101704Smjacob#include <pci/pcivar.h> 42101704Smjacob 43101704Smjacob#include <machine/bus_memio.h> 44101704Smjacob#include <machine/bus_pio.h> 45101704Smjacob#include <machine/bus.h> 46101704Smjacob#include <machine/resource.h> 47101704Smjacob#include <sys/rman.h> 48102199Smjacob#include <sys/malloc.h> 49101704Smjacob 50101704Smjacob#include <dev/mpt/mpt_freebsd.h> 51101704Smjacob 52101704Smjacob#ifndef PCI_VENDOR_LSI 53101704Smjacob#define PCI_VENDOR_LSI 0x1000 54101704Smjacob#endif 55101704Smjacob 56101704Smjacob#ifndef PCI_PRODUCT_LSI_FC909 57101704Smjacob#define PCI_PRODUCT_LSI_FC909 0x0620 58101704Smjacob#endif 59101704Smjacob 60102596Smjacob#ifndef PCI_PRODUCT_LSI_FC909A 61102596Smjacob#define PCI_PRODUCT_LSI_FC909A 0x0621 62102596Smjacob#endif 63102596Smjacob 64103829Smjacob#ifndef PCI_PRODUCT_LSI_FC919 65103829Smjacob#define PCI_PRODUCT_LSI_FC919 0x0624 66103829Smjacob#endif 67103829Smjacob 68101704Smjacob#ifndef PCI_PRODUCT_LSI_FC929 69101704Smjacob#define PCI_PRODUCT_LSI_FC929 0x0622 70101704Smjacob#endif 71101704Smjacob 72101704Smjacob#ifndef PCI_PRODUCT_LSI_1030 73101704Smjacob#define PCI_PRODUCT_LSI_1030 0x0030 74101704Smjacob#endif 75101704Smjacob 76102303Smjacob#ifndef PCIM_CMD_SERRESPEN 77102303Smjacob#define PCIM_CMD_SERRESPEN 0x0100 78102303Smjacob#endif 79101704Smjacob 80101704Smjacob 81102303Smjacob 82101704Smjacob#define MEM_MAP_REG 0x14 83101704Smjacob#define MEM_MAP_SRAM 0x1C 84101704Smjacob 85101704Smjacobstatic int mpt_probe(device_t); 86101704Smjacobstatic int mpt_attach(device_t); 87102199Smjacobstatic void mpt_free_bus_resources(mpt_softc_t *mpt); 88101704Smjacobstatic int mpt_detach(device_t); 89101704Smjacobstatic int mpt_shutdown(device_t); 90102199Smjacobstatic int mpt_dma_mem_alloc(mpt_softc_t *mpt); 91102199Smjacobstatic void mpt_dma_mem_free(mpt_softc_t *mpt); 92102199Smjacobstatic void mpt_read_config_regs(mpt_softc_t *mpt); 93102199Smjacobstatic void mpt_pci_intr(void *); 94101704Smjacob 95101704Smjacobstatic device_method_t mpt_methods[] = { 96101704Smjacob /* Device interface */ 97101704Smjacob DEVMETHOD(device_probe, mpt_probe), 98101704Smjacob DEVMETHOD(device_attach, mpt_attach), 99101704Smjacob DEVMETHOD(device_detach, mpt_detach), 100101704Smjacob DEVMETHOD(device_shutdown, mpt_shutdown), 101101704Smjacob { 0, 0 } 102101704Smjacob}; 103101704Smjacob 104101704Smjacobstatic driver_t mpt_driver = { 105102199Smjacob "mpt", mpt_methods, sizeof (mpt_softc_t) 106101704Smjacob}; 107101704Smjacobstatic devclass_t mpt_devclass; 108101704SmjacobDRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); 109101704SmjacobMODULE_VERSION(mpt, 1); 110101704Smjacob 111101704Smjacobint 112101704Smjacobmpt_intr(void *dummy) 113101704Smjacob{ 114103829Smjacob int nrepl = 0; 115101704Smjacob u_int32_t reply; 116102199Smjacob mpt_softc_t *mpt = (mpt_softc_t *)dummy; 117101704Smjacob 118103829Smjacob if ((mpt_read(mpt, MPT_OFFSET_INTR_STATUS) & MPT_INTR_REPLY_READY) == 0) 119103829Smjacob return (0); 120101704Smjacob reply = mpt_pop_reply_queue(mpt); 121101704Smjacob while (reply != MPT_REPLY_EMPTY) { 122103829Smjacob nrepl++; 123101704Smjacob if (mpt->verbose > 1) { 124101704Smjacob if ((reply & MPT_CONTEXT_REPLY) != 0) { 125101704Smjacob /* Address reply; IOC has something to say */ 126101704Smjacob mpt_print_reply(MPT_REPLY_PTOV(mpt, reply)); 127101704Smjacob } else { 128101704Smjacob /* Context reply ; all went well */ 129101704Smjacob device_printf(mpt->dev, 130101704Smjacob "context %u reply OK\n", reply); 131101704Smjacob } 132101704Smjacob } 133101704Smjacob mpt_done(mpt, reply); 134101704Smjacob reply = mpt_pop_reply_queue(mpt); 135101704Smjacob } 136103829Smjacob return (nrepl != 0); 137101704Smjacob} 138101704Smjacob 139101704Smjacobstatic int 140101704Smjacobmpt_probe(device_t dev) 141101704Smjacob{ 142101704Smjacob char *desc; 143101704Smjacob 144101704Smjacob if (pci_get_vendor(dev) != PCI_VENDOR_LSI) 145101704Smjacob return (ENXIO); 146101704Smjacob 147101704Smjacob switch ((pci_get_device(dev) & ~1)) { 148101704Smjacob case PCI_PRODUCT_LSI_FC909: 149101704Smjacob desc = "LSILogic FC909 FC Adapter"; 150101704Smjacob break; 151102596Smjacob case PCI_PRODUCT_LSI_FC909A: 152102596Smjacob desc = "LSILogic FC909A FC Adapter"; 153102596Smjacob break; 154103829Smjacob case PCI_PRODUCT_LSI_FC919: 155103829Smjacob desc = "LSILogic FC919 FC Adapter"; 156103829Smjacob break; 157101704Smjacob case PCI_PRODUCT_LSI_FC929: 158101704Smjacob desc = "LSILogic FC929 FC Adapter"; 159101704Smjacob break; 160101704Smjacob case PCI_PRODUCT_LSI_1030: 161101704Smjacob desc = "LSILogic 1030 Ultra4 Adapter"; 162101704Smjacob break; 163101704Smjacob default: 164101704Smjacob return (ENXIO); 165101704Smjacob } 166101704Smjacob 167101704Smjacob device_set_desc(dev, desc); 168101704Smjacob return (0); 169101704Smjacob} 170101704Smjacob 171101704Smjacob#ifdef RELENG_4 172101704Smjacobstatic void 173102199Smjacobmpt_set_options(mpt_softc_t *mpt) 174101704Smjacob{ 175101704Smjacob int bitmap; 176101704Smjacob 177101704Smjacob bitmap = 0; 178101704Smjacob if (getenv_int("mpt_disable", &bitmap)) { 179101704Smjacob if (bitmap & (1 << mpt->unit)) { 180101704Smjacob mpt->disabled = 1; 181101704Smjacob } 182101704Smjacob } 183101704Smjacob 184101704Smjacob bitmap = 0; 185101704Smjacob if (getenv_int("mpt_debug", &bitmap)) { 186101704Smjacob if (bitmap & (1 << mpt->unit)) { 187101704Smjacob mpt->verbose = 2; 188101704Smjacob } 189101704Smjacob } 190101704Smjacob 191101704Smjacob} 192101704Smjacob#else 193101704Smjacobstatic void 194102199Smjacobmpt_set_options(mpt_softc_t *mpt) 195101704Smjacob{ 196101704Smjacob int tval; 197101704Smjacob 198101704Smjacob tval = 0; 199101704Smjacob if (resource_int_value(device_get_name(mpt->dev), 200101704Smjacob device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) { 201101704Smjacob mpt->disabled = 1; 202101704Smjacob } 203101704Smjacob tval = 0; 204101704Smjacob if (resource_int_value(device_get_name(mpt->dev), 205101704Smjacob device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { 206101704Smjacob mpt->verbose += tval; 207101704Smjacob } 208101704Smjacob} 209101704Smjacob#endif 210101704Smjacob 211101704Smjacob 212102303Smjacobstatic void 213102303Smjacobmpt_link_peer(mpt_softc_t *mpt) 214102303Smjacob{ 215102303Smjacob mpt_softc_t *mpt2; 216102303Smjacob 217102303Smjacob if (mpt->unit == 0) { 218102303Smjacob return; 219102303Smjacob } 220102303Smjacob 221102303Smjacob /* 222102303Smjacob * XXX: depends on probe order 223102303Smjacob */ 224102303Smjacob mpt2 = (mpt_softc_t *) devclass_get_softc(mpt_devclass, mpt->unit-1); 225102303Smjacob 226102303Smjacob if (mpt2 == NULL) { 227102303Smjacob return; 228102303Smjacob } 229102303Smjacob if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { 230102303Smjacob return; 231102303Smjacob } 232102303Smjacob if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { 233102303Smjacob return; 234102303Smjacob } 235102303Smjacob mpt->mpt2 = mpt2; 236102303Smjacob mpt2->mpt2 = mpt; 237102303Smjacob if (mpt->verbose) { 238102303Smjacob device_printf(mpt->dev, "linking with peer (mpt%d)\n", 239102303Smjacob device_get_unit(mpt2->dev)); 240102303Smjacob } 241102303Smjacob} 242102303Smjacob 243102303Smjacob 244101704Smjacobstatic int 245101704Smjacobmpt_attach(device_t dev) 246101704Smjacob{ 247101704Smjacob int iqd; 248101704Smjacob u_int32_t data, cmd; 249102199Smjacob mpt_softc_t *mpt; 250101704Smjacob 251101704Smjacob /* Allocate the softc structure */ 252102199Smjacob mpt = (mpt_softc_t*) device_get_softc(dev); 253101704Smjacob if (mpt == NULL) { 254101704Smjacob device_printf(dev, "cannot allocate softc\n"); 255101704Smjacob return (ENOMEM); 256101704Smjacob } 257102199Smjacob bzero(mpt, sizeof (mpt_softc_t)); 258101704Smjacob switch ((pci_get_device(dev) & ~1)) { 259101704Smjacob case PCI_PRODUCT_LSI_FC909: 260102596Smjacob case PCI_PRODUCT_LSI_FC909A: 261103829Smjacob case PCI_PRODUCT_LSI_FC919: 262101704Smjacob case PCI_PRODUCT_LSI_FC929: 263101704Smjacob mpt->is_fc = 1; 264101704Smjacob break; 265101704Smjacob default: 266101704Smjacob break; 267101704Smjacob } 268101704Smjacob mpt->dev = dev; 269101704Smjacob mpt->unit = device_get_unit(dev); 270101704Smjacob mpt_set_options(mpt); 271101704Smjacob mpt->verbose += (bootverbose != 0)? 1 : 0; 272101704Smjacob 273101704Smjacob /* Make sure memory access decoders are enabled */ 274101704Smjacob cmd = pci_read_config(dev, PCIR_COMMAND, 2); 275101704Smjacob if ((cmd & PCIM_CMD_MEMEN) == 0) { 276101704Smjacob device_printf(dev, "Memory accesses disabled"); 277101704Smjacob goto bad; 278101704Smjacob } 279101704Smjacob 280101704Smjacob /* 281101704Smjacob * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. 282101704Smjacob */ 283101704Smjacob cmd |= 284101704Smjacob PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | 285101704Smjacob PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; 286101704Smjacob pci_write_config(dev, PCIR_COMMAND, cmd, 2); 287101704Smjacob 288101704Smjacob /* 289101704Smjacob * Make sure we've disabled the ROM. 290101704Smjacob */ 291101704Smjacob data = pci_read_config(dev, PCIR_BIOS, 4); 292101704Smjacob data &= ~1; 293101704Smjacob pci_write_config(dev, PCIR_BIOS, data, 4); 294101704Smjacob 295101704Smjacob 296102303Smjacob /* 297102303Smjacob * Is this part a dual? 298102303Smjacob * If so, link with our partner (around yet) 299102303Smjacob */ 300102303Smjacob if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || 301102303Smjacob (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { 302102303Smjacob mpt_link_peer(mpt); 303101704Smjacob } 304101704Smjacob 305101704Smjacob /* Set up the memory regions */ 306101704Smjacob /* Allocate kernel virtual memory for the 9x9's Mem0 region */ 307101704Smjacob mpt->pci_reg_id = MEM_MAP_REG; 308101704Smjacob mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY, 309101704Smjacob &mpt->pci_reg_id, 0, ~0, 0, RF_ACTIVE); 310101704Smjacob if (mpt->pci_reg == NULL) { 311101704Smjacob device_printf(dev, "unable to map any ports\n"); 312101704Smjacob goto bad; 313101704Smjacob } 314101704Smjacob mpt->pci_st = rman_get_bustag(mpt->pci_reg); 315101704Smjacob mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); 316101704Smjacob /* Get the Physical Address */ 317101704Smjacob mpt->pci_pa = rman_get_start(mpt->pci_reg); 318101704Smjacob 319101704Smjacob /* Get a handle to the interrupt */ 320101704Smjacob iqd = 0; 321101704Smjacob mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 322101704Smjacob 1, RF_ACTIVE | RF_SHAREABLE); 323101704Smjacob if (mpt->pci_irq == NULL) { 324101704Smjacob device_printf(dev, "could not allocate interrupt\n"); 325101704Smjacob goto bad; 326101704Smjacob } 327101704Smjacob 328101704Smjacob /* Register the interrupt handler */ 329102199Smjacob if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr, 330101704Smjacob mpt, &mpt->ih)) { 331101704Smjacob device_printf(dev, "could not setup interrupt\n"); 332101704Smjacob goto bad; 333101704Smjacob } 334101704Smjacob 335102199Smjacob MPT_LOCK_SETUP(mpt); 336102199Smjacob 337101704Smjacob /* Disable interrupts at the part */ 338101704Smjacob mpt_disable_ints(mpt); 339101704Smjacob 340101704Smjacob /* Allocate dma memory */ 341101704Smjacob if (mpt_dma_mem_alloc(mpt)) { 342101704Smjacob device_printf(dev, "Could not allocate DMA memory\n"); 343101704Smjacob goto bad; 344101704Smjacob } 345101704Smjacob 346102199Smjacob /* 347102199Smjacob * Save the PCI config register values 348102199Smjacob * 349102199Smjacob * Hard resets are known to screw up the BAR for diagnostic 350102199Smjacob * memory accesses (Mem1). 351102199Smjacob * 352102199Smjacob * Using Mem1 is known to make the chip stop responding to 353102199Smjacob * configuration space transfers, so we need to save it now 354102199Smjacob */ 355101704Smjacob 356101704Smjacob mpt_read_config_regs(mpt); 357101704Smjacob 358101704Smjacob /* Initialize the hardware */ 359101704Smjacob if (mpt->disabled == 0) { 360102199Smjacob MPT_LOCK(mpt); 361102199Smjacob if (mpt_init(mpt, MPT_DB_INIT_HOST) != 0) { 362102199Smjacob MPT_UNLOCK(mpt); 363101704Smjacob goto bad; 364102199Smjacob } 365101704Smjacob 366102199Smjacob /* 367102199Smjacob * Attach to CAM 368102199Smjacob */ 369102199Smjacob MPTLOCK_2_CAMLOCK(mpt); 370101704Smjacob mpt_cam_attach(mpt); 371102199Smjacob CAMLOCK_2_MPTLOCK(mpt); 372102199Smjacob MPT_UNLOCK(mpt); 373101704Smjacob } 374101704Smjacob 375101704Smjacob return (0); 376101704Smjacob 377101704Smjacobbad: 378101704Smjacob mpt_dma_mem_free(mpt); 379101704Smjacob mpt_free_bus_resources(mpt); 380101704Smjacob 381101704Smjacob /* 382101704Smjacob * but return zero to preserve unit numbering 383101704Smjacob */ 384101704Smjacob return (0); 385101704Smjacob} 386101704Smjacob 387102199Smjacob/* 388101704Smjacob * Free bus resources 389101704Smjacob */ 390101704Smjacobstatic void 391102199Smjacobmpt_free_bus_resources(mpt_softc_t *mpt) 392101704Smjacob{ 393101704Smjacob if (mpt->ih) { 394101704Smjacob bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); 395101704Smjacob mpt->ih = 0; 396101704Smjacob } 397101704Smjacob 398101704Smjacob if (mpt->pci_irq) { 399101704Smjacob bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq); 400101704Smjacob mpt->pci_irq = 0; 401101704Smjacob } 402101704Smjacob 403101704Smjacob if (mpt->pci_reg) { 404101704Smjacob bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_reg_id, 405101704Smjacob mpt->pci_reg); 406101704Smjacob mpt->pci_reg = 0; 407101704Smjacob } 408102199Smjacob MPT_LOCK_DESTROY(mpt); 409101704Smjacob} 410101704Smjacob 411101704Smjacob 412102199Smjacob/* 413101704Smjacob * Disconnect ourselves from the system. 414101704Smjacob */ 415101704Smjacobstatic int 416101704Smjacobmpt_detach(device_t dev) 417101704Smjacob{ 418102199Smjacob mpt_softc_t *mpt; 419102199Smjacob mpt = (mpt_softc_t*) device_get_softc(dev); 420101704Smjacob 421101704Smjacob device_printf(mpt->dev,"mpt_detach!\n"); 422101704Smjacob 423101704Smjacob if (mpt) { 424101704Smjacob mpt_disable_ints(mpt); 425101704Smjacob mpt_cam_detach(mpt); 426101704Smjacob mpt_reset(mpt); 427101704Smjacob mpt_dma_mem_free(mpt); 428101704Smjacob mpt_free_bus_resources(mpt); 429101704Smjacob } 430101704Smjacob return(0); 431101704Smjacob} 432101704Smjacob 433101704Smjacob 434102199Smjacob/* 435101704Smjacob * Disable the hardware 436101704Smjacob */ 437101704Smjacobstatic int 438101704Smjacobmpt_shutdown(device_t dev) 439101704Smjacob{ 440102199Smjacob mpt_softc_t *mpt; 441102199Smjacob mpt = (mpt_softc_t*) device_get_softc(dev); 442101704Smjacob 443101704Smjacob if (mpt) { 444101704Smjacob mpt_reset(mpt); 445101704Smjacob } 446101704Smjacob return(0); 447101704Smjacob} 448101704Smjacob 449101704Smjacob 450101704Smjacobstruct imush { 451102199Smjacob mpt_softc_t *mpt; 452101704Smjacob int error; 453101704Smjacob u_int32_t phys; 454101704Smjacob}; 455101704Smjacob 456101704Smjacobstatic void 457101704Smjacobmpt_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error) 458101704Smjacob{ 459101704Smjacob struct imush *imushp = (struct imush *) arg; 460101704Smjacob imushp->error = error; 461101704Smjacob imushp->phys = segs->ds_addr; 462101704Smjacob} 463101704Smjacob 464101704Smjacob 465101704Smjacobstatic int 466102199Smjacobmpt_dma_mem_alloc(mpt_softc_t *mpt) 467101704Smjacob{ 468101704Smjacob int i, error; 469101704Smjacob u_char *vptr; 470101704Smjacob u_int32_t pptr, end; 471101704Smjacob struct imush im; 472101704Smjacob device_t dev = mpt->dev; 473101704Smjacob 474101704Smjacob /* Check if we alreay have allocated the reply memory */ 475101704Smjacob if (mpt->reply_phys != NULL) 476101704Smjacob return 0; 477101704Smjacob 478101704Smjacob /* 479101704Smjacob * Create a dma tag for this device 480101704Smjacob * 481101704Smjacob * Align at page boundaries, limit to 32-bit addressing 482101704Smjacob * (The chip supports 64-bit addressing, but this driver doesn't) 483101704Smjacob */ 484101704Smjacob if (bus_dma_tag_create(NULL, PAGE_SIZE, 0, BUS_SPACE_MAXADDR_32BIT, 485101704Smjacob BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 486101704Smjacob BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED, 0, 487101704Smjacob &mpt->parent_dmat) != 0) { 488101704Smjacob device_printf(dev, "cannot create parent dma tag\n"); 489101704Smjacob return (1); 490101704Smjacob } 491101704Smjacob 492101704Smjacob /* Create a child tag for reply buffers */ 493101704Smjacob if (bus_dma_tag_create(mpt->parent_dmat, PAGE_SIZE, 494101704Smjacob 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 495101704Smjacob NULL, NULL, PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 496101704Smjacob &mpt->reply_dmat) != 0) { 497101704Smjacob device_printf(dev, "cannot create a dma tag for replies\n"); 498101704Smjacob return (1); 499101704Smjacob } 500101704Smjacob 501101704Smjacob /* Allocate some DMA accessable memory for replies */ 502101704Smjacob if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, 503101704Smjacob BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { 504101704Smjacob device_printf(dev, "cannot allocate %d bytes of reply memory\n", 505101704Smjacob PAGE_SIZE); 506101704Smjacob return (1); 507101704Smjacob } 508101704Smjacob 509101704Smjacob im.mpt = mpt; 510101704Smjacob im.error = 0; 511101704Smjacob 512101704Smjacob /* Load and lock it into "bus space" */ 513101704Smjacob bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 514101704Smjacob PAGE_SIZE, mpt_map_rquest, &im, 0); 515101704Smjacob 516101704Smjacob if (im.error) { 517101704Smjacob device_printf(dev, 518101704Smjacob "error %d loading dma map for DMA reply queue\n", im.error); 519101704Smjacob return (1); 520101704Smjacob } 521101704Smjacob mpt->reply_phys = im.phys; 522101704Smjacob 523101704Smjacob /* Create a child tag for data buffers */ 524101704Smjacob if (bus_dma_tag_create(mpt->parent_dmat, PAGE_SIZE, 525101704Smjacob 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 526101704Smjacob NULL, NULL, MAXBSIZE, MPT_SGL_MAX, BUS_SPACE_MAXSIZE_32BIT, 0, 527101704Smjacob &mpt->buffer_dmat) != 0) { 528101704Smjacob device_printf(dev, 529101704Smjacob "cannot create a dma tag for data buffers\n"); 530101704Smjacob return (1); 531101704Smjacob } 532101704Smjacob 533101704Smjacob /* Create a child tag for request buffers */ 534101704Smjacob if (bus_dma_tag_create(mpt->parent_dmat, PAGE_SIZE, 535101704Smjacob 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 536101704Smjacob NULL, NULL, MPT_REQ_MEM_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, 537101704Smjacob &mpt->request_dmat) != 0) { 538101704Smjacob device_printf(dev, "cannot create a dma tag for requests\n"); 539101704Smjacob return (1); 540101704Smjacob } 541101704Smjacob 542101704Smjacob /* Allocate some DMA accessable memory for requests */ 543101704Smjacob if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request, 544101704Smjacob BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) { 545101704Smjacob device_printf(dev, 546101704Smjacob "cannot allocate %d bytes of request memory\n", 547101704Smjacob MPT_REQ_MEM_SIZE); 548101704Smjacob return (1); 549101704Smjacob } 550101704Smjacob 551101704Smjacob im.mpt = mpt; 552101704Smjacob im.error = 0; 553101704Smjacob 554101704Smjacob /* Load and lock it into "bus space" */ 555101704Smjacob bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request, 556101704Smjacob MPT_REQ_MEM_SIZE, mpt_map_rquest, &im, 0); 557101704Smjacob 558101704Smjacob if (im.error) { 559101704Smjacob device_printf(dev, 560101704Smjacob "error %d loading dma map for DMA request queue\n", 561101704Smjacob im.error); 562101704Smjacob return (1); 563101704Smjacob } 564101704Smjacob mpt->request_phys = im.phys; 565101704Smjacob 566101704Smjacob i = 0; 567101704Smjacob pptr = mpt->request_phys; 568101704Smjacob vptr = mpt->request; 569101704Smjacob end = pptr + MPT_REQ_MEM_SIZE; 570101704Smjacob while(pptr < end) { 571101704Smjacob request_t *req = &mpt->requests[i]; 572101704Smjacob req->index = i++; 573101704Smjacob 574101704Smjacob /* Store location of Request Data */ 575101704Smjacob req->req_pbuf = pptr; 576101704Smjacob req->req_vbuf = vptr; 577101704Smjacob 578101704Smjacob pptr += MPT_REQUEST_AREA; 579101704Smjacob vptr += MPT_REQUEST_AREA; 580101704Smjacob 581101704Smjacob req->sense_pbuf = (pptr - MPT_SENSE_SIZE); 582101704Smjacob req->sense_vbuf = (vptr - MPT_SENSE_SIZE); 583101704Smjacob 584101704Smjacob error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap); 585101704Smjacob if (error) { 586101704Smjacob device_printf(dev, 587101704Smjacob "error %d creating per-cmd DMA maps\n", error); 588101704Smjacob return (1); 589101704Smjacob } 590101704Smjacob } 591101704Smjacob return (0); 592101704Smjacob} 593101704Smjacob 594101704Smjacob 595101704Smjacob 596101704Smjacob/* Deallocate memory that was allocated by mpt_dma_mem_alloc 597101704Smjacob */ 598101704Smjacobstatic void 599102199Smjacobmpt_dma_mem_free(mpt_softc_t *mpt) 600101704Smjacob{ 601101704Smjacob int i; 602101704Smjacob 603101704Smjacob /* Make sure we aren't double destroying */ 604101704Smjacob if (mpt->reply_dmat == 0) { 605101704Smjacob if (mpt->verbose) 606101704Smjacob device_printf(mpt->dev,"Already released dma memory\n"); 607101704Smjacob return; 608101704Smjacob } 609101704Smjacob 610101704Smjacob for (i = 0; i < MPT_MAX_REQUESTS; i++) { 611101704Smjacob bus_dmamap_destroy(mpt->buffer_dmat, mpt->requests[i].dmap); 612101704Smjacob } 613101704Smjacob bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap); 614101704Smjacob bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap); 615101704Smjacob bus_dma_tag_destroy(mpt->request_dmat); 616101704Smjacob bus_dma_tag_destroy(mpt->buffer_dmat); 617101704Smjacob bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); 618101704Smjacob bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); 619101704Smjacob bus_dma_tag_destroy(mpt->reply_dmat); 620101704Smjacob bus_dma_tag_destroy(mpt->parent_dmat); 621101704Smjacob mpt->reply_dmat = 0; 622101704Smjacob 623101704Smjacob} 624101704Smjacob 625101704Smjacob 626101704Smjacob 627101704Smjacob/* Reads modifiable (via PCI transactions) config registers */ 628101704Smjacobstatic void 629102199Smjacobmpt_read_config_regs(mpt_softc_t *mpt) 630101704Smjacob{ 631101704Smjacob mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); 632101704Smjacob mpt->pci_cfg.LatencyTimer_LineSize = 633101704Smjacob pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); 634101704Smjacob mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_MAPS, 4); 635101704Smjacob mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_MAPS+0x4, 4); 636101704Smjacob mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_MAPS+0x8, 4); 637101704Smjacob mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_MAPS+0xC, 4); 638101704Smjacob mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_MAPS+0x10, 4); 639101704Smjacob mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); 640101704Smjacob mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); 641101704Smjacob mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); 642101704Smjacob} 643101704Smjacob 644101704Smjacob/* Sets modifiable config registers */ 645101704Smjacobvoid 646102199Smjacobmpt_set_config_regs(mpt_softc_t *mpt) 647101704Smjacob{ 648101704Smjacob u_int32_t val; 649101704Smjacob 650101704Smjacob#define MPT_CHECK(reg, offset, size) \ 651101704Smjacob val = pci_read_config(mpt->dev, offset, size); \ 652101704Smjacob if (mpt->pci_cfg.reg != val) { \ 653101704Smjacob device_printf(mpt->dev, \ 654101704Smjacob "Restoring " #reg " to 0x%X from 0x%X\n", \ 655101704Smjacob mpt->pci_cfg.reg, val); \ 656101704Smjacob } 657101704Smjacob 658101704Smjacob if (mpt->verbose) { 659101704Smjacob MPT_CHECK(Command, PCIR_COMMAND, 2); 660101704Smjacob MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); 661101704Smjacob MPT_CHECK(IO_BAR, PCIR_MAPS, 4); 662101704Smjacob MPT_CHECK(Mem0_BAR[0], PCIR_MAPS+0x4, 4); 663101704Smjacob MPT_CHECK(Mem0_BAR[1], PCIR_MAPS+0x8, 4); 664101704Smjacob MPT_CHECK(Mem1_BAR[0], PCIR_MAPS+0xC, 4); 665101704Smjacob MPT_CHECK(Mem1_BAR[1], PCIR_MAPS+0x10, 4); 666101704Smjacob MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); 667101704Smjacob MPT_CHECK(IntLine, PCIR_INTLINE, 1); 668101704Smjacob MPT_CHECK(PMCSR, 0x44, 4); 669101704Smjacob } 670101704Smjacob#undef MPT_CHECK 671101704Smjacob 672101704Smjacob pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); 673101704Smjacob pci_write_config(mpt->dev, PCIR_CACHELNSZ, 674101704Smjacob mpt->pci_cfg.LatencyTimer_LineSize, 2); 675101704Smjacob pci_write_config(mpt->dev, PCIR_MAPS, mpt->pci_cfg.IO_BAR, 4); 676101704Smjacob pci_write_config(mpt->dev, PCIR_MAPS+0x4, mpt->pci_cfg.Mem0_BAR[0], 4); 677101704Smjacob pci_write_config(mpt->dev, PCIR_MAPS+0x8, mpt->pci_cfg.Mem0_BAR[1], 4); 678101704Smjacob pci_write_config(mpt->dev, PCIR_MAPS+0xC, mpt->pci_cfg.Mem1_BAR[0], 4); 679101704Smjacob pci_write_config(mpt->dev, PCIR_MAPS+0x10, mpt->pci_cfg.Mem1_BAR[1], 4); 680101704Smjacob pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); 681101704Smjacob pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); 682101704Smjacob pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); 683101704Smjacob} 684102199Smjacob 685102199Smjacobstatic void 686102199Smjacobmpt_pci_intr(void *arg) 687102199Smjacob{ 688102199Smjacob mpt_softc_t *mpt = arg; 689102199Smjacob MPT_LOCK(mpt); 690103829Smjacob (void) mpt_intr(mpt); 691102199Smjacob MPT_UNLOCK(mpt); 692102199Smjacob} 693