1 /* $OpenBSD: mfi_pci.c,v 1.28 2012/08/14 04:10:14 dlg 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 27 #include <dev/pci/pcidevs.h> 28 #include <dev/pci/pcivar.h> 29 30 #include <machine/bus.h> 31 32 #include <scsi/scsi_all.h> 33 #include <scsi/scsi_disk.h> 34 #include <scsi/scsiconf.h> 35 36 #include <dev/ic/mfireg.h> 37 #include <dev/ic/mfivar.h> 38 39 #define MFI_BAR 0x10 40 #define MFI_BAR_GEN2 0x14 41 #define MFI_PCI_MEMSIZE 0x2000 /* 8k */ 42 43 int mfi_pci_match(struct device *, void *, void *); 44 void mfi_pci_attach(struct device *, struct device *, void *); 45 46 struct cfattach mfi_pci_ca = { 47 sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach 48 }; 49 50 static const 51 struct mfi_pci_device { 52 pcireg_t mpd_vendor; 53 pcireg_t mpd_product; 54 enum mfi_iop mpd_iop; 55 } mfi_pci_devices[] = { 56 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_SAS, 57 MFI_IOP_XSCALE }, 58 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_MEGARAID_VERDE_ZCR, 59 MFI_IOP_XSCALE }, 60 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078, 61 MFI_IOP_PPC }, 62 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS1078DE, 63 MFI_IOP_PPC }, 64 { PCI_VENDOR_DELL, PCI_PRODUCT_DELL_PERC5, 65 MFI_IOP_XSCALE }, 66 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2108_1, 67 MFI_IOP_GEN2 }, 68 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2108_2, 69 MFI_IOP_GEN2 }, 70 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_SAS2008_1, 71 MFI_IOP_SKINNY } 72 }; 73 74 const struct mfi_pci_device *mfi_pci_find_device(struct pci_attach_args *); 75 76 const struct mfi_pci_device * 77 mfi_pci_find_device(struct pci_attach_args *pa) 78 { 79 const struct mfi_pci_device *mpd; 80 int i; 81 82 for (i = 0; i < nitems(mfi_pci_devices); i++) { 83 mpd = &mfi_pci_devices[i]; 84 85 if (mpd->mpd_vendor == PCI_VENDOR(pa->pa_id) && 86 mpd->mpd_product == PCI_PRODUCT(pa->pa_id)) 87 return (mpd); 88 } 89 90 return (NULL); 91 } 92 93 int 94 mfi_pci_match(struct device *parent, void *match, void *aux) 95 { 96 return ((mfi_pci_find_device(aux) != NULL) ? 1 : 0); 97 } 98 99 void 100 mfi_pci_attach(struct device *parent, struct device *self, void *aux) 101 { 102 struct mfi_softc *sc = (struct mfi_softc *)self; 103 struct pci_attach_args *pa = aux; 104 const struct mfi_pci_device *mpd; 105 pci_intr_handle_t ih; 106 bus_size_t size; 107 pcireg_t reg; 108 int regbar; 109 110 mpd = mfi_pci_find_device(pa); 111 if (mpd == NULL) { 112 printf(": can't find matching pci device\n"); 113 return; 114 } 115 116 if (mpd->mpd_iop == MFI_IOP_GEN2 || mpd->mpd_iop == MFI_IOP_SKINNY) 117 regbar = MFI_BAR_GEN2; 118 else 119 regbar = MFI_BAR; 120 121 reg = pci_mapreg_type(pa->pa_pc, pa->pa_tag, regbar); 122 if (pci_mapreg_map(pa, regbar, reg, 0, 123 &sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) { 124 printf(": can't map controller pci space\n"); 125 return; 126 } 127 128 sc->sc_dmat = pa->pa_dmat; 129 130 if (pci_intr_map(pa, &ih) != 0) { 131 printf(": can't map interrupt\n"); 132 goto unmap; 133 } 134 printf(": %s\n", pci_intr_string(pa->pa_pc, ih)); 135 136 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, mfi_intr, sc, 137 sc->sc_dev.dv_xname); 138 if (!sc->sc_ih) { 139 printf("%s: can't establish interrupt\n", DEVNAME(sc)); 140 goto unmap; 141 } 142 143 if (mfi_attach(sc, mpd->mpd_iop)) { 144 printf("%s: can't attach\n", DEVNAME(sc)); 145 goto unintr; 146 } 147 148 return; 149 unintr: 150 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 151 sc->sc_ih = NULL; 152 unmap: 153 bus_space_unmap(sc->sc_iot, sc->sc_ioh, size); 154 } 155