/* $NetBSD: ld_mlx.c,v 1.23 2016/09/27 03:33:32 pgoyette Exp $ */ /*- * Copyright (c) 2001 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. */ /* * Mylex DAC960 front-end for ld(4) driver. */ #include __KERNEL_RCSID(0, "$NetBSD: ld_mlx.c,v 1.23 2016/09/27 03:33:32 pgoyette Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" struct ld_mlx_softc { struct ld_softc sc_ld; int sc_hwunit; }; static void ld_mlx_attach(device_t, device_t, void *); static int ld_mlx_detach(device_t, int); static int ld_mlx_dobio(struct ld_mlx_softc *, void *, int, int, int, struct buf *); static int ld_mlx_dump(struct ld_softc *, void *, int, int); static void ld_mlx_handler(struct mlx_ccb *); static int ld_mlx_match(device_t, cfdata_t, void *); static int ld_mlx_start(struct ld_softc *, struct buf *); CFATTACH_DECL_NEW(ld_mlx, sizeof(struct ld_mlx_softc), ld_mlx_match, ld_mlx_attach, ld_mlx_detach, NULL); static int ld_mlx_match(device_t parent, cfdata_t match, void *aux) { return (1); } static void ld_mlx_attach(device_t parent, device_t self, void *aux) { struct mlx_attach_args *mlxa = aux; struct ld_mlx_softc *sc = device_private(self); struct ld_softc *ld = &sc->sc_ld; struct mlx_softc *mlx = device_private(parent); struct mlx_sysdrive *ms = &mlx->mlx_sysdrive[mlxa->mlxa_unit]; const char *statestr; ld->sc_dv = self; sc->sc_hwunit = mlxa->mlxa_unit; ld->sc_maxxfer = MLX_MAX_XFER; ld->sc_secsize = MLX_SECTOR_SIZE; ld->sc_maxqueuecnt = 1; ld->sc_start = ld_mlx_start; ld->sc_dump = ld_mlx_dump; ld->sc_secperunit = ms->ms_size; /* * Report on current status, and attach to the ld driver proper. */ switch (ms->ms_state) { case MLX_SYSD_ONLINE: statestr = "online"; ld->sc_flags = LDF_ENABLED; break; case MLX_SYSD_CRITICAL: statestr = "critical"; ld->sc_flags = LDF_ENABLED; break; case MLX_SYSD_OFFLINE: statestr = "offline"; break; default: statestr = "state unknown"; break; } if (ms->ms_raidlevel == MLX_SYS_DRV_JBOD) aprint_normal(": JBOD, %s\n", statestr); else aprint_normal(": RAID%d, %s\n", ms->ms_raidlevel, statestr); ldattach(ld, BUFQ_DISK_DEFAULT_STRAT); } static int ld_mlx_detach(device_t dv, int flags) { struct ld_mlx_softc *sc = device_private(dv); struct ld_softc *ld = &sc->sc_ld; struct mlx_softc *mlx = device_private(device_parent(dv)); int rv; if ((rv = ldbegindetach(ld, flags)) != 0) return (rv); ldenddetach(ld); mlx_flush(mlx, 1); return (0); } static int ld_mlx_dobio(struct ld_mlx_softc *sc, void *data, int datasize, int blkno, int dowrite, struct buf *bp) { struct mlx_ccb *mc; struct mlx_softc *mlx; int s, rv; bus_addr_t sgphys; mlx = device_private(device_parent(sc->sc_ld.sc_dv)); if ((rv = mlx_ccb_alloc(mlx, &mc, bp == NULL)) != 0) return (rv); /* Map the data transfer. */ rv = mlx_ccb_map(mlx, mc, data, datasize, dowrite ? MC_XFER_OUT : MC_XFER_IN); if (rv != 0) { mlx_ccb_free(mlx, mc); return (rv); } /* Build the command. */ sgphys = mlx->mlx_sgls_paddr + (MLX_SGL_SIZE * mc->mc_ident); datasize /= MLX_SECTOR_SIZE; if (mlx->mlx_ci.ci_iftype <= 2) mlx_make_type1(mc, dowrite ? MLX_CMD_WRITESG_OLD : MLX_CMD_READSG_OLD, datasize & 0xff, blkno, sc->sc_hwunit, sgphys, mc->mc_nsgent); else mlx_make_type5(mc, dowrite ? MLX_CMD_WRITESG : MLX_CMD_READSG, datasize & 0xff, (sc->sc_hwunit << 3) | ((datasize >> 8) & 0x07), blkno, sgphys, mc->mc_nsgent); if (bp == NULL) { s = splbio(); rv = mlx_ccb_poll(mlx, mc, 10000); mlx_ccb_unmap(mlx, mc); mlx_ccb_free(mlx, mc); splx(s); } else { mc->mc_mx.mx_handler = ld_mlx_handler; mc->mc_mx.mx_context = bp; mc->mc_mx.mx_dv = sc->sc_ld.sc_dv; mlx_ccb_enqueue(mlx, mc); rv = 0; } return (rv); } static int ld_mlx_start(struct ld_softc *ld, struct buf *bp) { return (ld_mlx_dobio((struct ld_mlx_softc *)ld, bp->b_data, bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); } static void ld_mlx_handler(struct mlx_ccb *mc) { struct buf *bp; struct mlx_context *mx; struct ld_mlx_softc *sc; struct mlx_softc *mlx; mx = &mc->mc_mx; bp = mx->mx_context; sc = device_private(mx->mx_dv); mlx = device_private(device_parent(sc->sc_ld.sc_dv)); if (mc->mc_status != MLX_STATUS_OK) { bp->b_error = EIO; bp->b_resid = bp->b_bcount; if (mc->mc_status == MLX_STATUS_RDWROFFLINE) printf("%s: drive offline\n", device_xname(sc->sc_ld.sc_dv)); else printf("%s: I/O error - %s\n", device_xname(sc->sc_ld.sc_dv), mlx_ccb_diagnose(mc)); } else bp->b_resid = 0; mlx_ccb_unmap(mlx, mc); mlx_ccb_free(mlx, mc); lddone(&sc->sc_ld, bp); } static int ld_mlx_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) { return (ld_mlx_dobio((struct ld_mlx_softc *)ld, data, blkcnt * ld->sc_secsize, blkno, 1, NULL)); } MODULE(MODULE_CLASS_DRIVER, ld_mlx, "ld"); #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 ld_mlx_modcmd(modcmd_t cmd, void *opaque) { #ifdef _MODULE /* * We ignore the cfdriver_vec[] that ioconf provides, since * the cfdrivers are attached already. */ static struct cfdriver * const no_cfdriver_vec[] = { NULL }; #endif int error = 0; #ifdef _MODULE switch (cmd) { case MODULE_CMD_INIT: error = config_init_component(no_cfdriver_vec, cfattach_ioconf_ld_mlx, cfdata_ioconf_ld_mlx); break; case MODULE_CMD_FINI: error = config_fini_component(no_cfdriver_vec, cfattach_ioconf_ld_mlx, cfdata_ioconf_ld_mlx); break; default: error = ENOTTY; break; } #endif return error; }