/* $NetBSD: cac_pci.c,v 1.35 2016/09/27 03:33:32 pgoyette Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * PCI front-end for cac(4) driver. */ #include __KERNEL_RCSID(0, "$NetBSD: cac_pci.c,v 1.35 2016/09/27 03:33:32 pgoyette Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" static struct cac_ccb *cac_pci_l0_completed(struct cac_softc *); static int cac_pci_l0_fifo_full(struct cac_softc *); static void cac_pci_l0_intr_enable(struct cac_softc *, int); static int cac_pci_l0_intr_pending(struct cac_softc *); static void cac_pci_l0_submit(struct cac_softc *, struct cac_ccb *); static const struct cac_linkage cac_pci_l0 = { cac_pci_l0_completed, cac_pci_l0_fifo_full, cac_pci_l0_intr_enable, cac_pci_l0_intr_pending, cac_pci_l0_submit }; #define CT_STARTFW 0x01 /* Need to start controller firmware */ static struct cac_pci_type { int ct_subsysid; int ct_flags; const struct cac_linkage *ct_linkage; const char *ct_typestr; } const cac_pci_type[] = { { 0x40300e11, 0, &cac_l0, "SMART-2/P" }, { 0x40310e11, 0, &cac_l0, "SMART-2SL" }, { 0x40320e11, 0, &cac_l0, "Smart Array 3200" }, { 0x40330e11, 0, &cac_l0, "Smart Array 3100ES" }, { 0x40340e11, 0, &cac_l0, "Smart Array 221" }, { 0x40400e11, CT_STARTFW, &cac_pci_l0, "Integrated Array" }, { 0x40480e11, CT_STARTFW, &cac_pci_l0, "RAID LC2" }, { 0x40500e11, 0, &cac_pci_l0, "Smart Array 4200" }, { 0x40510e11, 0, &cac_pci_l0, "Smart Array 4200ES" }, { 0x40580e11, 0, &cac_pci_l0, "Smart Array 431" }, }; static struct cac_pci_product { u_short cp_vendor; u_short cp_product; } const cac_pci_product[] = { { PCI_VENDOR_COMPAQ, PCI_PRODUCT_COMPAQ_SMART2P }, { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21554 }, { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1510 }, }; static const struct cac_pci_type * cac_pci_findtype(struct pci_attach_args *pa) { const struct cac_pci_type *ct; const struct cac_pci_product *cp; pcireg_t subsysid; int i; cp = cac_pci_product; i = 0; while (i < sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) { if (PCI_VENDOR(pa->pa_id) == cp->cp_vendor && PCI_PRODUCT(pa->pa_id) == cp->cp_product) break; cp++; i++; } if (i == sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) return (NULL); subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); ct = cac_pci_type; i = 0; while (i < sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) { if (subsysid == ct->ct_subsysid) break; ct++; i++; } if (i == sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) return (NULL); return (ct); } static int cac_pci_match(device_t parent, cfdata_t match, void *aux) { return (cac_pci_findtype(aux) != NULL); } static void cac_pci_attach(device_t parent, device_t self, void *aux) { struct pci_attach_args *pa; const struct cac_pci_type *ct; struct cac_softc *sc; pci_chipset_tag_t pc; pci_intr_handle_t ih; const char *intrstr; pcireg_t reg; int memr, ior, i; char intrbuf[PCI_INTRSTR_LEN]; aprint_naive(": RAID controller\n"); sc = device_private(self); sc->sc_dev = self; pa = (struct pci_attach_args *)aux; pc = pa->pa_pc; ct = cac_pci_findtype(pa); /* * Map the PCI register window. */ memr = -1; ior = -1; for (i = 0x10; i <= 0x14; i += 4) { reg = pci_conf_read(pa->pa_pc, pa->pa_tag, i); if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { if (ior == -1 && PCI_MAPREG_IO_SIZE(reg) != 0) ior = i; } else { if (memr == -1 && PCI_MAPREG_MEM_SIZE(reg) != 0) memr = i; } } if (memr != -1) { if (pci_mapreg_map(pa, memr, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) memr = -1; else ior = -1; } if (ior != -1) if (pci_mapreg_map(pa, ior, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) ior = -1; if (memr == -1 && ior == -1) { aprint_error_dev(self, "can't map i/o or memory space\n"); return; } sc->sc_dmat = pa->pa_dmat; /* Enable the device. */ reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg | PCI_COMMAND_MASTER_ENABLE); /* Map and establish the interrupt. */ if (pci_intr_map(pa, &ih)) { aprint_error("can't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc); if (sc->sc_ih == NULL) { aprint_error("can't establish interrupt"); if (intrstr != NULL) aprint_error(" at %s", intrstr); aprint_error("\n"); return; } aprint_normal(": Compaq %s\n", ct->ct_typestr); /* Now attach to the bus-independent code. */ memcpy(&sc->sc_cl, ct->ct_linkage, sizeof(sc->sc_cl)); cac_init(sc, intrstr, (ct->ct_flags & CT_STARTFW) != 0); } CFATTACH_DECL3_NEW(cac_pci, sizeof(struct cac_softc), cac_pci_match, cac_pci_attach, NULL, NULL, cac_rescan, NULL, 0); static void cac_pci_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb) { bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, (char *)ccb - (char *)sc->sc_ccbs, sizeof(struct cac_ccb), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); cac_outl(sc, CAC_42REG_CMD_FIFO, ccb->ccb_paddr); } static struct cac_ccb * cac_pci_l0_completed(struct cac_softc *sc) { struct cac_ccb *ccb; u_int32_t off; if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU) return (NULL); cac_outl(sc, CAC_42REG_DONE_FIFO, 0); if ((off & 3) != 0) printf("%s: failed command list returned: %lx\n", device_xname(sc->sc_dev), (long)off); off = (off & ~3) - sc->sc_ccbs_paddr; ccb = (struct cac_ccb *)((char *)sc->sc_ccbs + off); bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); if ((off & 3) != 0 && ccb->ccb_req.error == 0) ccb->ccb_req.error = CAC_RET_CMD_REJECTED; return (ccb); } static int cac_pci_l0_intr_pending(struct cac_softc *sc) { return ((cac_inl(sc, CAC_42REG_STATUS) & CAC_42_EXTINT) != 0); } static void cac_pci_l0_intr_enable(struct cac_softc *sc, int state) { cac_outl(sc, CAC_42REG_INTR_MASK, (state ? 0 : 8)); /* XXX */ } static int cac_pci_l0_fifo_full(struct cac_softc *sc) { return (cac_inl(sc, CAC_42REG_CMD_FIFO) != 0); } MODULE(MODULE_CLASS_DRIVER, cac_pci, "cac,pci"); #ifdef _MODULE /* * XXX Don't allow ioconf.c to redefine the "struct cfdriver ld_cd" * XXX it will be defined in the common-code module */ #undef CFDRIVER_DECL #define CFDRIVER_DECL(name, class, attr) #include "ioconf.c" #endif static int cac_pci_modcmd(modcmd_t cmd, void *opaque) { int error = 0; #ifdef _MODULE switch (cmd) { case MODULE_CMD_INIT: /* * We skip over the first entry in cfdriver[] array * since the cfdriver is attached by the common * (non-attachment-specific) code. */ error = config_init_component(&cfdriver_ioconf_cac_pci[1], cfattach_ioconf_cac_pci, cfdata_ioconf_cac_pci); break; case MODULE_CMD_FINI: error = config_fini_component(&cfdriver_ioconf_cac_pci[1], cfattach_ioconf_cac_pci, cfdata_ioconf_cac_pci); break; default: error = ENOTTY; break; } #endif return error; }