ld_amr.c revision 1.5
1 /* $NetBSD: ld_amr.c,v 1.5 2003/05/04 16:15:36 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * AMI RAID controller front-end for ld(4) driver. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: ld_amr.c,v 1.5 2003/05/04 16:15:36 ad Exp $"); 45 46 #include "rnd.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/device.h> 52 #include <sys/buf.h> 53 #include <sys/endian.h> 54 #include <sys/dkio.h> 55 #include <sys/disk.h> 56 #if NRND > 0 57 #include <sys/rnd.h> 58 #endif 59 60 #include <uvm/uvm_extern.h> 61 62 #include <machine/bus.h> 63 64 #include <dev/ldvar.h> 65 66 #include <dev/pci/pcireg.h> 67 #include <dev/pci/pcivar.h> 68 #include <dev/pci/amrreg.h> 69 #include <dev/pci/amrvar.h> 70 71 struct ld_amr_softc { 72 struct ld_softc sc_ld; 73 int sc_hwunit; 74 }; 75 76 void ld_amr_attach(struct device *, struct device *, void *); 77 int ld_amr_dobio(struct ld_amr_softc *, void *, int, int, int, 78 struct buf *); 79 int ld_amr_dump(struct ld_softc *, void *, int, int); 80 void ld_amr_handler(struct amr_ccb *); 81 int ld_amr_match(struct device *, struct cfdata *, void *); 82 int ld_amr_start(struct ld_softc *, struct buf *); 83 84 CFATTACH_DECL(ld_amr, sizeof(struct ld_amr_softc), 85 ld_amr_match, ld_amr_attach, NULL, NULL); 86 87 int 88 ld_amr_match(struct device *parent, struct cfdata *match, void *aux) 89 { 90 91 return (1); 92 } 93 94 void 95 ld_amr_attach(struct device *parent, struct device *self, void *aux) 96 { 97 struct amr_attach_args *amra; 98 struct ld_amr_softc *sc; 99 struct ld_softc *ld; 100 struct amr_softc *amr; 101 const char *statestr; 102 int happy; 103 104 sc = (struct ld_amr_softc *)self; 105 ld = &sc->sc_ld; 106 amr = (struct amr_softc *)parent; 107 amra = aux; 108 109 sc->sc_hwunit = amra->amra_unit; 110 ld->sc_maxxfer = amr_max_xfer; 111 ld->sc_maxqueuecnt = (amr->amr_maxqueuecnt - AMR_NCCB_RESV) 112 / amr->amr_numdrives; 113 ld->sc_secperunit = amr->amr_drive[sc->sc_hwunit].al_size; 114 ld->sc_secsize = AMR_SECTOR_SIZE; 115 ld->sc_start = ld_amr_start; 116 ld->sc_dump = ld_amr_dump; 117 118 if (ld->sc_maxqueuecnt > AMR_MAX_CMDS_PU) 119 ld->sc_maxqueuecnt = AMR_MAX_CMDS_PU; 120 121 /* 122 * Print status information and attach to the ld driver proper. 123 */ 124 statestr = amr_drive_state(amr->amr_drive[sc->sc_hwunit].al_state, 125 &happy); 126 if (happy) 127 ld->sc_flags = LDF_ENABLED; 128 aprint_normal(": RAID %d, %s\n", 129 amr->amr_drive[sc->sc_hwunit].al_properties & AMR_DRV_RAID_MASK, 130 statestr); 131 132 ldattach(ld); 133 } 134 135 int 136 ld_amr_dobio(struct ld_amr_softc *sc, void *data, int datasize, 137 int blkno, int dowrite, struct buf *bp) 138 { 139 struct amr_ccb *ac; 140 struct amr_softc *amr; 141 struct amr_mailbox_cmd *mb; 142 int s, rv; 143 144 amr = (struct amr_softc *)sc->sc_ld.sc_dv.dv_parent; 145 146 if ((rv = amr_ccb_alloc(amr, &ac)) != 0) 147 return (rv); 148 149 mb = &ac->ac_cmd; 150 mb->mb_command = (dowrite ? AMR_CMD_LWRITE : AMR_CMD_LREAD); 151 mb->mb_drive = sc->sc_hwunit; 152 mb->mb_blkcount = htole16(datasize / AMR_SECTOR_SIZE); 153 mb->mb_lba = htole32(blkno); 154 155 if ((rv = amr_ccb_map(amr, ac, data, datasize, dowrite)) != 0) { 156 amr_ccb_free(amr, ac); 157 return (rv); 158 } 159 160 if (bp == NULL) { 161 /* 162 * Polled commands must not sit on the software queue. Wait 163 * up to 30 seconds for the command to complete. 164 */ 165 s = splbio(); 166 rv = amr_ccb_poll(amr, ac, 30000); 167 splx(s); 168 amr_ccb_unmap(amr, ac); 169 amr_ccb_free(amr, ac); 170 } else { 171 ac->ac_handler = ld_amr_handler; 172 ac->ac_context = bp; 173 ac->ac_dv = (struct device *)sc; 174 amr_ccb_enqueue(amr, ac); 175 rv = 0; 176 } 177 178 return (rv); 179 } 180 181 int 182 ld_amr_start(struct ld_softc *ld, struct buf *bp) 183 { 184 185 return (ld_amr_dobio((struct ld_amr_softc *)ld, bp->b_data, 186 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 187 } 188 189 void 190 ld_amr_handler(struct amr_ccb *ac) 191 { 192 struct buf *bp; 193 struct ld_amr_softc *sc; 194 struct amr_softc *amr; 195 196 bp = ac->ac_context; 197 sc = (struct ld_amr_softc *)ac->ac_dv; 198 amr = (struct amr_softc *)sc->sc_ld.sc_dv.dv_parent; 199 200 if (ac->ac_status != AMR_STATUS_SUCCESS) { 201 printf("%s: cmd status 0x%02x\n", sc->sc_ld.sc_dv.dv_xname, 202 ac->ac_status); 203 204 bp->b_flags |= B_ERROR; 205 bp->b_error = EIO; 206 bp->b_resid = bp->b_bcount; 207 } else 208 bp->b_resid = 0; 209 210 amr_ccb_unmap(amr, ac); 211 amr_ccb_free(amr, ac); 212 lddone(&sc->sc_ld, bp); 213 } 214 215 int 216 ld_amr_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 217 { 218 struct ld_amr_softc *sc; 219 220 sc = (struct ld_amr_softc *)ld; 221 222 return (ld_amr_dobio(sc, data, blkcnt * ld->sc_secsize, blkno, 1, 223 NULL)); 224 } 225
Indexes created Mon Sep 22 21:09:42 GMT 2025