mpt_pci.c revision 1.5
1 /* $NetBSD: mpt_pci.c,v 1.5 2005/02/27 00:27:33 perry Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * mpt_pci.c: 40 * 41 * NetBSD PCI-specific routines for LSI Fusion adapters. 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: mpt_pci.c,v 1.5 2005/02/27 00:27:33 perry Exp $"); 46 47 #include <dev/ic/mpt.h> /* pulls in all headers */ 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 #define MPT_PCI_MMBA (PCI_MAPREG_START+0x04) 54 55 struct mpt_pci_softc { 56 mpt_softc_t sc_mpt; 57 58 pci_chipset_tag_t sc_pc; 59 pcitag_t sc_tag; 60 61 void *sc_ih; 62 63 /* Saved volatile PCI configuration registers. */ 64 pcireg_t sc_pci_csr; 65 pcireg_t sc_pci_bhlc; 66 pcireg_t sc_pci_io_bar; 67 pcireg_t sc_pci_mem0_bar[2]; 68 pcireg_t sc_pci_mem1_bar[2]; 69 pcireg_t sc_pci_rom_bar; 70 pcireg_t sc_pci_int; 71 pcireg_t sc_pci_pmcsr; 72 }; 73 74 static void mpt_pci_link_peer(mpt_softc_t *); 75 static void mpt_pci_read_config_regs(mpt_softc_t *); 76 static void mpt_pci_set_config_regs(mpt_softc_t *); 77 78 #define MPP_F_FC 0x01 /* Fibre Channel adapter */ 79 #define MPP_F_DUAL 0x02 /* Dual port adapter */ 80 81 static const struct mpt_pci_product { 82 pci_vendor_id_t mpp_vendor; 83 pci_product_id_t mpp_product; 84 int mpp_flags; 85 const char *mpp_name; 86 } mpt_pci_products[] = { 87 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1030, 88 MPP_F_DUAL, 89 "LSI Logic 53c1030 Ultra320 SCSI" }, 90 91 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC909, 92 MPP_F_FC, 93 "LSI Logic FC909 FC Adapter" }, 94 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC909A, 95 MPP_F_FC, 96 "LSI Logic FC909A FC Adapter" }, 97 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC929, 98 MPP_F_FC | MPP_F_DUAL, 99 "LSI Logic FC929 FC Adapter" }, 100 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC929_1, 101 MPP_F_FC | MPP_F_DUAL, 102 "LSI Logic FC929 FC Adapter" }, 103 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC919, 104 MPP_F_FC, 105 "LSI Logic FC919 FC Adapter" }, 106 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC919_1, 107 MPP_F_FC, 108 "LSI Logic FC919 FC Adapter" }, 109 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC929X, 110 MPP_F_FC | MPP_F_DUAL, 111 "LSI Logic FC929X FC Adapter" }, 112 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_FC919X, 113 MPP_F_FC, 114 "LSI Logic FC919X FC Adapter" }, 115 116 { 0, 0, 117 0, 118 NULL }, 119 }; 120 121 static const struct mpt_pci_product * 122 mpt_pci_lookup(const struct pci_attach_args *pa) 123 { 124 const struct mpt_pci_product *mpp; 125 126 for (mpp = mpt_pci_products; mpp->mpp_name != NULL; mpp++) { 127 if (PCI_VENDOR(pa->pa_id) == mpp->mpp_vendor && 128 PCI_PRODUCT(pa->pa_id) == mpp->mpp_product) 129 return (mpp); 130 } 131 return (NULL); 132 } 133 134 static int 135 mpt_pci_match(struct device *parent, struct cfdata *cf, void *aux) 136 { 137 struct pci_attach_args *pa = aux; 138 139 if (mpt_pci_lookup(pa) != NULL) 140 return (1); 141 142 return (0); 143 } 144 145 static void 146 mpt_pci_attach(struct device *parent, struct device *self, void *aux) 147 { 148 struct mpt_pci_softc *psc = (void *) self; 149 mpt_softc_t *mpt = &psc->sc_mpt; 150 struct pci_attach_args *pa = aux; 151 const struct mpt_pci_product *mpp; 152 pci_intr_handle_t ih; 153 const char *intrstr; 154 pcireg_t reg, memtype; 155 bus_space_tag_t memt; 156 bus_space_handle_t memh; 157 int memh_valid; 158 159 mpp = mpt_pci_lookup(pa); 160 if (mpp == NULL) { 161 printf("\n"); 162 panic("mpt_pci_attach"); 163 } 164 165 if (mpp->mpp_flags & MPP_F_FC) { 166 mpt->is_fc = 1; 167 aprint_naive(": Fibre Channel controller\n"); 168 } else 169 aprint_naive(": SCSI controller\n"); 170 aprint_normal(": %s\n", mpp->mpp_name); 171 172 psc->sc_pc = pa->pa_pc; 173 psc->sc_tag = pa->pa_tag; 174 175 mpt->sc_dmat = pa->pa_dmat; 176 mpt->sc_set_config_regs = mpt_pci_set_config_regs; 177 178 /* 179 * Map the device. 180 */ 181 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, MPT_PCI_MMBA); 182 switch (memtype) { 183 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 184 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 185 memh_valid = (pci_mapreg_map(pa, MPT_PCI_MMBA, 186 memtype, 0, &memt, &memh, NULL, NULL) == 0); 187 break; 188 189 default: 190 memh_valid = 0; 191 } 192 193 if (memh_valid) { 194 mpt->sc_st = memt; 195 mpt->sc_sh = memh; 196 } else { 197 aprint_error("%s: unable to map device registers\n", 198 mpt->sc_dev.dv_xname); 199 return; 200 } 201 202 /* 203 * Make sure the PCI command register is properly configured. 204 */ 205 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 206 reg |= PCI_COMMAND_MASTER_ENABLE; 207 /* XXX PCI_COMMAND_INVALIDATE_ENABLE */ 208 /* XXX PCI_COMMAND_PARITY_ENABLE */ 209 /* XXX PCI_COMMAND_SERR_ENABLE */ 210 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg); 211 212 /* 213 * Ensure that the ROM is diabled. 214 */ 215 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM); 216 reg &= ~1; 217 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM, reg); 218 219 /* 220 * Map and establish our interrupt. 221 */ 222 if (pci_intr_map(pa, &ih) != 0) { 223 aprint_error("%s: unable to map interrupt\n", 224 mpt->sc_dev.dv_xname); 225 return; 226 } 227 intrstr = pci_intr_string(pa->pa_pc, ih); 228 psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, mpt_intr, mpt); 229 if (psc->sc_ih == NULL) { 230 aprint_error("%s: unable to establish interrupt", 231 mpt->sc_dev.dv_xname); 232 if (intrstr != NULL) 233 aprint_normal(" at %s", intrstr); 234 aprint_normal("\n"); 235 return; 236 } 237 aprint_normal("%s: interrupting at %s\n", mpt->sc_dev.dv_xname, 238 intrstr); 239 240 /* Disable interrupts on the part. */ 241 mpt_disable_ints(mpt); 242 243 /* Allocate DMA memory. */ 244 if (mpt_dma_mem_alloc(mpt) != 0) { 245 aprint_error("%s: unable to allocate DMA memory\n", 246 mpt->sc_dev.dv_xname); 247 return; 248 } 249 250 /* 251 * Save the PCI config register values. 252 * 253 * Hard resets are known to screw up the BAR for diagnostic 254 * memory accesses (Mem1). 255 * 256 * Using Mem1 is know to make the chip stop responding to 257 * configuration cycles, so we need to save it now. 258 */ 259 mpt_pci_read_config_regs(mpt); 260 261 /* 262 * If we're a dual-port adapter, try to find our peer. We 263 * need to fix his PCI config registers, too. 264 */ 265 if (mpp->mpp_flags & MPP_F_DUAL) 266 mpt_pci_link_peer(mpt); 267 268 /* Initialize the hardware. */ 269 if (mpt_init(mpt, MPT_DB_INIT_HOST) != 0) { 270 /* Error message already printed. */ 271 return; 272 } 273 274 /* Attach to scsipi. */ 275 mpt_scsipi_attach(mpt); 276 } 277 278 CFATTACH_DECL(mpt_pci, sizeof(struct mpt_pci_softc), 279 mpt_pci_match, mpt_pci_attach, NULL, NULL); 280 281 /* 282 * Find and remember our peer PCI function on a dual-port device. 283 */ 284 static void 285 mpt_pci_link_peer(mpt_softc_t *mpt) 286 { 287 extern struct cfdriver mpt_cd; 288 289 struct mpt_pci_softc *peer_psc, *psc = (void *) mpt; 290 struct device *dev; 291 int unit, b, d, f, peer_b, peer_d, peer_f; 292 293 pci_decompose_tag(psc->sc_pc, psc->sc_tag, &b, &d, &f); 294 295 for (unit = 0; unit < mpt_cd.cd_ndevs; unit++) { 296 if (unit == mpt->sc_dev.dv_unit) 297 continue; 298 dev = device_lookup(&mpt_cd, unit); 299 if (dev == NULL) 300 continue; 301 if (dev->dv_cfattach != &mpt_pci_ca) 302 continue; 303 peer_psc = (void *) dev; 304 if (peer_psc->sc_pc != psc->sc_pc) 305 continue; 306 pci_decompose_tag(peer_psc->sc_pc, peer_psc->sc_tag, 307 &peer_b, &peer_d, &peer_f); 308 if (peer_b == b && peer_d == d) { 309 if (mpt->verbose) 310 mpt_prt(mpt, "linking with peer: %s", 311 peer_psc->sc_mpt.sc_dev.dv_xname); 312 mpt->mpt2 = (mpt_softc_t *) peer_psc; 313 peer_psc->sc_mpt.mpt2 = mpt; 314 return; 315 } 316 } 317 } 318 319 /* 320 * Save the volatile PCI configuration registers. 321 */ 322 static void 323 mpt_pci_read_config_regs(mpt_softc_t *mpt) 324 { 325 struct mpt_pci_softc *psc = (void *) mpt; 326 327 psc->sc_pci_csr = pci_conf_read(psc->sc_pc, psc->sc_tag, 328 PCI_COMMAND_STATUS_REG); 329 psc->sc_pci_bhlc = pci_conf_read(psc->sc_pc, psc->sc_tag, 330 PCI_BHLC_REG); 331 psc->sc_pci_io_bar = pci_conf_read(psc->sc_pc, psc->sc_tag, 332 PCI_MAPREG_START); 333 psc->sc_pci_mem0_bar[0] = pci_conf_read(psc->sc_pc, psc->sc_tag, 334 PCI_MAPREG_START+0x04); 335 psc->sc_pci_mem0_bar[1] = pci_conf_read(psc->sc_pc, psc->sc_tag, 336 PCI_MAPREG_START+0x08); 337 psc->sc_pci_mem1_bar[0] = pci_conf_read(psc->sc_pc, psc->sc_tag, 338 PCI_MAPREG_START+0x0c); 339 psc->sc_pci_mem1_bar[1] = pci_conf_read(psc->sc_pc, psc->sc_tag, 340 PCI_MAPREG_START+0x10); 341 psc->sc_pci_rom_bar = pci_conf_read(psc->sc_pc, psc->sc_tag, 342 PCI_MAPREG_ROM); 343 psc->sc_pci_int = pci_conf_read(psc->sc_pc, psc->sc_tag, 344 PCI_INTERRUPT_REG); 345 psc->sc_pci_pmcsr = pci_conf_read(psc->sc_pc, psc->sc_tag, 0x44); 346 } 347 348 /* 349 * Restore the volatile PCI configuration registers. 350 */ 351 static void 352 mpt_pci_set_config_regs(mpt_softc_t *mpt) 353 { 354 struct mpt_pci_softc *psc = (void *) mpt; 355 356 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_COMMAND_STATUS_REG, 357 psc->sc_pci_csr); 358 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_BHLC_REG, 359 psc->sc_pci_bhlc); 360 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_MAPREG_START, 361 psc->sc_pci_io_bar); 362 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_MAPREG_START+0x04, 363 psc->sc_pci_mem0_bar[0]); 364 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_MAPREG_START+0x08, 365 psc->sc_pci_mem0_bar[1]); 366 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_MAPREG_START+0x0c, 367 psc->sc_pci_mem1_bar[0]); 368 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_MAPREG_START+0x10, 369 psc->sc_pci_mem1_bar[1]); 370 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_MAPREG_ROM, 371 psc->sc_pci_rom_bar); 372 pci_conf_write(psc->sc_pc, psc->sc_tag, PCI_INTERRUPT_REG, 373 psc->sc_pci_int); 374 pci_conf_write(psc->sc_pc, psc->sc_tag, 0x44, psc->sc_pci_pmcsr); 375 } 376
Indexes created Mon Sep 22 13:09:51 GMT 2025