1265236Sken/*- 2265236Sken * Copyright (c) 2009 Yahoo! Inc. 3265236Sken * All rights reserved. 4265236Sken * 5265236Sken * Redistribution and use in source and binary forms, with or without 6265236Sken * modification, are permitted provided that the following conditions 7265236Sken * are met: 8265236Sken * 1. Redistributions of source code must retain the above copyright 9265236Sken * notice, this list of conditions and the following disclaimer. 10265236Sken * 2. Redistributions in binary form must reproduce the above copyright 11265236Sken * notice, this list of conditions and the following disclaimer in the 12265236Sken * documentation and/or other materials provided with the distribution. 13265236Sken * 14265236Sken * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15265236Sken * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16265236Sken * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17265236Sken * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18265236Sken * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19265236Sken * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20265236Sken * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21265236Sken * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22265236Sken * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23265236Sken * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24265236Sken * SUCH DAMAGE. 25265236Sken */ 26265236Sken 27265236Sken#include <sys/cdefs.h> 28265236Sken__FBSDID("$FreeBSD$"); 29265236Sken 30265236Sken/* PCI/PCI-X/PCIe bus interface for the LSI MPT2 controllers */ 31265236Sken 32265236Sken/* TODO Move headers to mprvar */ 33265236Sken#include <sys/types.h> 34265236Sken#include <sys/param.h> 35265236Sken#include <sys/systm.h> 36265236Sken#include <sys/kernel.h> 37265236Sken#include <sys/module.h> 38265236Sken#include <sys/bus.h> 39265236Sken#include <sys/conf.h> 40265236Sken#include <sys/malloc.h> 41265236Sken#include <sys/sysctl.h> 42265236Sken#include <sys/uio.h> 43265236Sken 44265236Sken#include <machine/bus.h> 45265236Sken#include <machine/resource.h> 46265236Sken#include <sys/rman.h> 47265236Sken 48265236Sken#include <dev/pci/pcireg.h> 49265236Sken#include <dev/pci/pcivar.h> 50265236Sken#include <dev/pci/pci_private.h> 51265236Sken 52265236Sken#include <dev/mpr/mpi/mpi2_type.h> 53265236Sken#include <dev/mpr/mpi/mpi2.h> 54265236Sken#include <dev/mpr/mpi/mpi2_ioc.h> 55265236Sken#include <dev/mpr/mpi/mpi2_cnfg.h> 56265236Sken#include <dev/mpr/mpi/mpi2_tool.h> 57265236Sken 58265236Sken#include <sys/queue.h> 59265236Sken#include <sys/kthread.h> 60265236Sken#include <dev/mpr/mpr_ioctl.h> 61265236Sken#include <dev/mpr/mprvar.h> 62265236Sken 63265236Skenstatic int mpr_pci_probe(device_t); 64265236Skenstatic int mpr_pci_attach(device_t); 65265236Skenstatic int mpr_pci_detach(device_t); 66265236Skenstatic int mpr_pci_suspend(device_t); 67265236Skenstatic int mpr_pci_resume(device_t); 68265236Skenstatic void mpr_pci_free(struct mpr_softc *); 69265236Skenstatic int mpr_alloc_msix(struct mpr_softc *sc, int msgs); 70265236Skenstatic int mpr_alloc_msi(struct mpr_softc *sc, int msgs); 71265236Sken 72265236Skenstatic device_method_t mpr_methods[] = { 73265236Sken DEVMETHOD(device_probe, mpr_pci_probe), 74265236Sken DEVMETHOD(device_attach, mpr_pci_attach), 75265236Sken DEVMETHOD(device_detach, mpr_pci_detach), 76265236Sken DEVMETHOD(device_suspend, mpr_pci_suspend), 77265236Sken DEVMETHOD(device_resume, mpr_pci_resume), 78265236Sken DEVMETHOD(bus_print_child, bus_generic_print_child), 79265236Sken DEVMETHOD(bus_driver_added, bus_generic_driver_added), 80265236Sken { 0, 0 } 81265236Sken}; 82265236Sken 83265236Skenstatic driver_t mpr_pci_driver = { 84265236Sken "mpr", 85265236Sken mpr_methods, 86265236Sken sizeof(struct mpr_softc) 87265236Sken}; 88265236Sken 89265236Skenstatic devclass_t mpr_devclass; 90265236SkenDRIVER_MODULE(mpr, pci, mpr_pci_driver, mpr_devclass, 0, 0); 91265236SkenMODULE_DEPEND(mpr, cam, 1, 1, 1); 92265236Sken 93265236Skenstruct mpr_ident { 94265236Sken uint16_t vendor; 95265236Sken uint16_t device; 96265236Sken uint16_t subvendor; 97265236Sken uint16_t subdevice; 98265236Sken u_int flags; 99265236Sken const char *desc; 100265236Sken} mpr_identifiers[] = { 101265236Sken { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004, 102265236Sken 0xffff, 0xffff, 0, "LSI SAS3004" }, 103265236Sken { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008, 104265236Sken 0xffff, 0xffff, 0, "LSI SAS3008" }, 105265236Sken { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1, 106265236Sken 0xffff, 0xffff, 0, "LSI SAS3108_1" }, 107265236Sken { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2, 108265236Sken 0xffff, 0xffff, 0, "LSI SAS3108_2" }, 109265236Sken { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5, 110265236Sken 0xffff, 0xffff, 0, "LSI SAS3108_5" }, 111265236Sken { MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6, 112265236Sken 0xffff, 0xffff, 0, "LSI SAS3108_6" }, 113265236Sken { 0, 0, 0, 0, 0, NULL } 114265236Sken}; 115265236Sken 116265236Skenstatic struct mpr_ident * 117265236Skenmpr_find_ident(device_t dev) 118265236Sken{ 119265236Sken struct mpr_ident *m; 120265236Sken 121265236Sken for (m = mpr_identifiers; m->vendor != 0; m++) { 122265236Sken if (m->vendor != pci_get_vendor(dev)) 123265236Sken continue; 124265236Sken if (m->device != pci_get_device(dev)) 125265236Sken continue; 126265236Sken if ((m->subvendor != 0xffff) && 127265236Sken (m->subvendor != pci_get_subvendor(dev))) 128265236Sken continue; 129265236Sken if ((m->subdevice != 0xffff) && 130265236Sken (m->subdevice != pci_get_subdevice(dev))) 131265236Sken continue; 132265236Sken return (m); 133265236Sken } 134265236Sken 135265236Sken return (NULL); 136265236Sken} 137265236Sken 138265236Skenstatic int 139265236Skenmpr_pci_probe(device_t dev) 140265236Sken{ 141265236Sken struct mpr_ident *id; 142265236Sken 143265236Sken if ((id = mpr_find_ident(dev)) != NULL) { 144265236Sken device_set_desc(dev, id->desc); 145265236Sken return (BUS_PROBE_DEFAULT); 146265236Sken } 147265236Sken return (ENXIO); 148265236Sken} 149265236Sken 150265236Skenstatic int 151265236Skenmpr_pci_attach(device_t dev) 152265236Sken{ 153265236Sken struct mpr_softc *sc; 154265236Sken struct mpr_ident *m; 155265236Sken int error; 156265236Sken 157265236Sken sc = device_get_softc(dev); 158265236Sken bzero(sc, sizeof(*sc)); 159265236Sken sc->mpr_dev = dev; 160265236Sken m = mpr_find_ident(dev); 161265236Sken sc->mpr_flags = m->flags; 162265236Sken 163265236Sken /* Twiddle basic PCI config bits for a sanity check */ 164265236Sken pci_enable_busmaster(dev); 165265236Sken 166265236Sken /* Allocate the System Interface Register Set */ 167265236Sken sc->mpr_regs_rid = PCIR_BAR(1); 168265236Sken if ((sc->mpr_regs_resource = bus_alloc_resource_any(dev, 169265236Sken SYS_RES_MEMORY, &sc->mpr_regs_rid, RF_ACTIVE)) == NULL) { 170265236Sken mpr_printf(sc, "Cannot allocate PCI registers\n"); 171265236Sken return (ENXIO); 172265236Sken } 173265236Sken sc->mpr_btag = rman_get_bustag(sc->mpr_regs_resource); 174265236Sken sc->mpr_bhandle = rman_get_bushandle(sc->mpr_regs_resource); 175265236Sken 176265236Sken /* Allocate the parent DMA tag */ 177265236Sken if (bus_dma_tag_create( bus_get_dma_tag(dev), /* parent */ 178265236Sken 1, 0, /* algnmnt, boundary */ 179265236Sken BUS_SPACE_MAXADDR, /* lowaddr */ 180265236Sken BUS_SPACE_MAXADDR, /* highaddr */ 181265236Sken NULL, NULL, /* filter, filterarg */ 182265236Sken BUS_SPACE_MAXSIZE_32BIT,/* maxsize */ 183265236Sken BUS_SPACE_UNRESTRICTED, /* nsegments */ 184265236Sken BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 185265236Sken 0, /* flags */ 186265236Sken NULL, NULL, /* lockfunc, lockarg */ 187265236Sken &sc->mpr_parent_dmat)) { 188265236Sken mpr_printf(sc, "Cannot allocate parent DMA tag\n"); 189265236Sken mpr_pci_free(sc); 190265236Sken return (ENOMEM); 191265236Sken } 192265236Sken 193265236Sken if ((error = mpr_attach(sc)) != 0) 194265236Sken mpr_pci_free(sc); 195265236Sken 196265236Sken return (error); 197265236Sken} 198265236Sken 199265236Skenint 200265236Skenmpr_pci_setup_interrupts(struct mpr_softc *sc) 201265236Sken{ 202265236Sken device_t dev; 203265236Sken int i, error, msgs; 204265236Sken 205265236Sken dev = sc->mpr_dev; 206265236Sken error = ENXIO; 207265236Sken if ((sc->disable_msix == 0) && 208265236Sken ((msgs = pci_msix_count(dev)) >= MPR_MSI_COUNT)) 209265236Sken error = mpr_alloc_msix(sc, MPR_MSI_COUNT); 210265236Sken if ((error != 0) && (sc->disable_msi == 0) && 211265236Sken ((msgs = pci_msi_count(dev)) >= MPR_MSI_COUNT)) 212265236Sken error = mpr_alloc_msi(sc, MPR_MSI_COUNT); 213265236Sken 214265236Sken if (error != 0) { 215265236Sken sc->mpr_flags |= MPR_FLAGS_INTX; 216265236Sken sc->mpr_irq_rid[0] = 0; 217265236Sken sc->mpr_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ, 218265236Sken &sc->mpr_irq_rid[0], RF_SHAREABLE | RF_ACTIVE); 219265236Sken if (sc->mpr_irq[0] == NULL) { 220265236Sken mpr_printf(sc, "Cannot allocate INTx interrupt\n"); 221265236Sken return (ENXIO); 222265236Sken } 223265236Sken error = bus_setup_intr(dev, sc->mpr_irq[0], 224265236Sken INTR_TYPE_BIO | INTR_MPSAFE, NULL, mpr_intr, sc, 225265236Sken &sc->mpr_intrhand[0]); 226265236Sken if (error) 227265236Sken mpr_printf(sc, "Cannot setup INTx interrupt\n"); 228265236Sken } else { 229265236Sken sc->mpr_flags |= MPR_FLAGS_MSI; 230265236Sken for (i = 0; i < MPR_MSI_COUNT; i++) { 231265236Sken sc->mpr_irq_rid[i] = i + 1; 232265236Sken sc->mpr_irq[i] = bus_alloc_resource_any(dev, 233265236Sken SYS_RES_IRQ, &sc->mpr_irq_rid[i], RF_ACTIVE); 234265236Sken if (sc->mpr_irq[i] == NULL) { 235265236Sken mpr_printf(sc, 236265236Sken "Cannot allocate MSI interrupt\n"); 237265236Sken return (ENXIO); 238265236Sken } 239265236Sken error = bus_setup_intr(dev, sc->mpr_irq[i], 240265236Sken INTR_TYPE_BIO | INTR_MPSAFE, NULL, mpr_intr_msi, 241265236Sken sc, &sc->mpr_intrhand[i]); 242265236Sken if (error) { 243265236Sken mpr_printf(sc, 244265236Sken "Cannot setup MSI interrupt %d\n", i); 245265236Sken break; 246265236Sken } 247265236Sken } 248265236Sken } 249265236Sken 250265236Sken return (error); 251265236Sken} 252265236Sken 253265236Skenstatic int 254265236Skenmpr_pci_detach(device_t dev) 255265236Sken{ 256265236Sken struct mpr_softc *sc; 257265236Sken int error; 258265236Sken 259265236Sken sc = device_get_softc(dev); 260265236Sken 261265236Sken if ((error = mpr_free(sc)) != 0) 262265236Sken return (error); 263265236Sken 264265236Sken mpr_pci_free(sc); 265265236Sken return (0); 266265236Sken} 267265236Sken 268265236Skenstatic void 269265236Skenmpr_pci_free(struct mpr_softc *sc) 270265236Sken{ 271265236Sken int i; 272265236Sken 273265236Sken if (sc->mpr_parent_dmat != NULL) { 274265236Sken bus_dma_tag_destroy(sc->mpr_parent_dmat); 275265236Sken } 276265236Sken 277265236Sken if (sc->mpr_flags & MPR_FLAGS_MSI) { 278265236Sken for (i = 0; i < MPR_MSI_COUNT; i++) { 279265236Sken if (sc->mpr_irq[i] != NULL) { 280265236Sken bus_teardown_intr(sc->mpr_dev, sc->mpr_irq[i], 281265236Sken sc->mpr_intrhand[i]); 282265236Sken bus_release_resource(sc->mpr_dev, SYS_RES_IRQ, 283265236Sken sc->mpr_irq_rid[i], sc->mpr_irq[i]); 284265236Sken } 285265236Sken } 286265236Sken pci_release_msi(sc->mpr_dev); 287265236Sken } 288265236Sken 289265236Sken if (sc->mpr_flags & MPR_FLAGS_INTX) { 290265236Sken bus_teardown_intr(sc->mpr_dev, sc->mpr_irq[0], 291265236Sken sc->mpr_intrhand[0]); 292265236Sken bus_release_resource(sc->mpr_dev, SYS_RES_IRQ, 293265236Sken sc->mpr_irq_rid[0], sc->mpr_irq[0]); 294265236Sken } 295265236Sken 296265236Sken if (sc->mpr_regs_resource != NULL) { 297265236Sken bus_release_resource(sc->mpr_dev, SYS_RES_MEMORY, 298265236Sken sc->mpr_regs_rid, sc->mpr_regs_resource); 299265236Sken } 300265236Sken 301265236Sken return; 302265236Sken} 303265236Sken 304265236Skenstatic int 305265236Skenmpr_pci_suspend(device_t dev) 306265236Sken{ 307265236Sken return (EINVAL); 308265236Sken} 309265236Sken 310265236Skenstatic int 311265236Skenmpr_pci_resume(device_t dev) 312265236Sken{ 313265236Sken return (EINVAL); 314265236Sken} 315265236Sken 316265236Skenstatic int 317265236Skenmpr_alloc_msix(struct mpr_softc *sc, int msgs) 318265236Sken{ 319265236Sken int error; 320265236Sken 321265236Sken error = pci_alloc_msix(sc->mpr_dev, &msgs); 322265236Sken return (error); 323265236Sken} 324265236Sken 325265236Skenstatic int 326265236Skenmpr_alloc_msi(struct mpr_softc *sc, int msgs) 327265236Sken{ 328265236Sken int error; 329265236Sken 330265236Sken error = pci_alloc_msi(sc->mpr_dev, &msgs); 331265236Sken return (error); 332265236Sken} 333265236Sken 334265236Skenint 335265236Skenmpr_pci_restore(struct mpr_softc *sc) 336265236Sken{ 337265236Sken struct pci_devinfo *dinfo; 338265236Sken 339265236Sken mpr_dprint(sc, MPR_TRACE, "%s\n", __func__); 340265236Sken 341265236Sken dinfo = device_get_ivars(sc->mpr_dev); 342265236Sken if (dinfo == NULL) { 343265236Sken mpr_dprint(sc, MPR_FAULT, "%s: NULL dinfo\n", __func__); 344265236Sken return (EINVAL); 345265236Sken } 346265236Sken 347265236Sken pci_cfg_restore(sc->mpr_dev, dinfo); 348265236Sken return (0); 349265236Sken} 350265236Sken 351