1 /* $OpenBSD: mfi_pci.c,v 1.30 2019/12/31 00:00:09 deraadt Exp $ */ 2 /* 3 * Copyright (c) 2006 Marco Peereboom <marco@peereboom.us> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include "bio.h" 19 20 #include <sys/param.h> 21 #include <sys/systm.h> 22 #include <sys/kernel.h> 23 #include <sys/malloc.h> 24 #include <sys/device.h> 25 #include <sys/rwlock.h> 26 #include <sys/sensors.h> 27 28 #include <dev/pci/pcidevs.h> 29 #include <dev/pci/pcivar.h> 30 31 #include <machine/bus.h> 32 33 #include <scsi/scsi_all.h> 34 #include <scsi/scsi_disk.h> 35 #include <scsi/scsiconf.h> 36 37 #include <dev/ic/mfireg.h> 38 #include <dev/ic/mfivar.h> 39 40 #define MFI_BAR 0x10 41 #define MFI_BAR_GEN2 0x14 42 #define MFI_PCI_MEMSIZE 0x2000 /* 8k */ 43 44 int mfi_pci_match(struct device *, void *, void *); 45 void mfi_pci_attach(struct device *, struct device *, void *); 46 47 struct cfattach mfi_pci_ca = { 48 sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach 49 }; 50 51 static const 52 struct mfi_pci_device { 53 pcireg_t mpd_vendor; 54 pcireg_t mpd_product; 55 enum mfi_iop mpd_iop; 56 } mfi_pci_devices[] = { 57 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_SAS, 58 MFI_IOP_XSCALE }, 59 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_VERDE_ZCR, 60 MFI_IOP_XSCALE }, 61 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078, 62 MFI_IOP_PPC }, 63 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078DE, 64 MFI_IOP_PPC }, 65 { PCI_VENDOR_DELL, PCI_PRODUCT_DELL_PERC5, 66 MFI_IOP_XSCALE }, 67 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2108_1, 68 MFI_IOP_GEN2 }, 69 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2108_2, 70 MFI_IOP_GEN2 }, 71 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2008_1, 72 MFI_IOP_SKINNY } 73 }; 74 75 const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *); 76 77 const struct mfi_pci_device * 78 mfi_pci_find_device(struct pci_attach_args *pa) 79 { 80 const struct mfi_pci_device *mpd; 81 int i; 82 83 for (i = 0; i < nitems(mfi_pci_devices); i++) { 84 mpd = &mfi_pci_devices[i]; 85 86 if (mpd->mpd_vendor == PCI_VENDOR(pa->pa_id) && 87 mpd->mpd_product == PCI_PRODUCT(pa->pa_id)) 88 return (mpd); 89 } 90 91 return (NULL); 92 } 93 94 int 95 mfi_pci_match(struct device *parent, void *match, void *aux) 96 { 97 return ((mfi_pci_find_device(aux) != NULL) ? 1 : 0); 98 } 99 100 void 101 mfi_pci_attach(struct device *parent, struct device *self, void *aux) 102 { 103 struct mfi_softc *sc = (struct mfi_softc *)self; 104 struct pci_attach_args *pa = aux; 105 const struct mfi_pci_device *mpd; 106 pci_intr_handle_t ih; 107 bus_size_t size; 108 pcireg_t reg; 109 int regbar; 110 111 mpd = mfi_pci_find_device(pa); 112 if (mpd == NULL) { 113 printf(": can't find matching pci device\n"); 114 return; 115 } 116 117 if (mpd->mpd_iop == MFI_IOP_GEN2 || mpd->mpd_iop == MFI_IOP_SKINNY) 118 regbar = MFI_BAR_GEN2; 119 else 120 regbar = MFI_BAR; 121 122 reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, regbar); 123 if (pci_mapreg_map(pa, regbar, reg, 0, 124 &sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) { 125 printf(": can't map controller pci space\n"); 126 return; 127 } 128 129 sc->sc_dmat = pa->pa_dmat; 130 131 if (pci_intr_map(pa, &ih) != 0) { 132 printf(": can't map interrupt\n"); 133 goto unmap; 134 } 135 printf(": %s\n", pci_intr_string(pa->pa_pc, ih)); 136 137 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO | IPL_MPSAFE, 138 mfi_intr, sc, sc->sc_dev.dv_xname); 139 if (!sc->sc_ih) { 140 printf("%s: can't establish interrupt\n", DEVNAME(sc)); 141 goto unmap; 142 } 143 144 if (mfi_attach(sc, mpd->mpd_iop)) { 145 printf("%s: can't attach\n", DEVNAME(sc)); 146 goto unintr; 147 } 148 149 return; 150 unintr: 151 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 152 sc->sc_ih = NULL; 153 unmap: 154 bus_space_unmap(sc->sc_iot, sc->sc_ioh, size); 155 } 156