ld_mlx.c revision 1.1 1 1.1 ad /* $NetBSD: ld_mlx.c,v 1.1 2001/02/04 17:05:12 ad Exp $ */
2 1.1 ad
3 1.1 ad /*-
4 1.1 ad * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 1.1 ad * All rights reserved.
6 1.1 ad *
7 1.1 ad * This code is derived from software contributed to The NetBSD Foundation
8 1.1 ad * by Andrew Doran.
9 1.1 ad *
10 1.1 ad * Redistribution and use in source and binary forms, with or without
11 1.1 ad * modification, are permitted provided that the following conditions
12 1.1 ad * are met:
13 1.1 ad * 1. Redistributions of source code must retain the above copyright
14 1.1 ad * notice, this list of conditions and the following disclaimer.
15 1.1 ad * 2. Redistributions in binary form must reproduce the above copyright
16 1.1 ad * notice, this list of conditions and the following disclaimer in the
17 1.1 ad * documentation and/or other materials provided with the distribution.
18 1.1 ad * 3. All advertising materials mentioning features or use of this software
19 1.1 ad * must display the following acknowledgement:
20 1.1 ad * This product includes software developed by the NetBSD
21 1.1 ad * Foundation, Inc. and its contributors.
22 1.1 ad * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.1 ad * contributors may be used to endorse or promote products derived
24 1.1 ad * from this software without specific prior written permission.
25 1.1 ad *
26 1.1 ad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.1 ad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.1 ad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.1 ad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.1 ad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.1 ad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.1 ad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.1 ad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.1 ad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.1 ad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.1 ad * POSSIBILITY OF SUCH DAMAGE.
37 1.1 ad */
38 1.1 ad
39 1.1 ad /*
40 1.1 ad * Mylex DAC960 front-end for ld(4) driver.
41 1.1 ad */
42 1.1 ad
43 1.1 ad #include "rnd.h"
44 1.1 ad
45 1.1 ad #include <sys/param.h>
46 1.1 ad #include <sys/systm.h>
47 1.1 ad #include <sys/kernel.h>
48 1.1 ad #include <sys/device.h>
49 1.1 ad #include <sys/buf.h>
50 1.1 ad #include <sys/endian.h>
51 1.1 ad #include <sys/dkio.h>
52 1.1 ad #include <sys/disk.h>
53 1.1 ad #if NRND > 0
54 1.1 ad #include <sys/rnd.h>
55 1.1 ad #endif
56 1.1 ad
57 1.1 ad #include <machine/vmparam.h>
58 1.1 ad #include <machine/bus.h>
59 1.1 ad
60 1.1 ad #include <dev/ldvar.h>
61 1.1 ad
62 1.1 ad #include <dev/ic/mlxreg.h>
63 1.1 ad #include <dev/ic/mlxio.h>
64 1.1 ad #include <dev/ic/mlxvar.h>
65 1.1 ad
66 1.1 ad struct ld_mlx_softc {
67 1.1 ad struct ld_softc sc_ld;
68 1.1 ad int sc_hwunit;
69 1.1 ad };
70 1.1 ad
71 1.1 ad static void ld_mlx_attach(struct device *, struct device *, void *);
72 1.1 ad static int ld_mlx_detach(struct device *, int);
73 1.1 ad static int ld_mlx_dobio(struct ld_mlx_softc *, void *, int, int, int,
74 1.1 ad struct buf *);
75 1.1 ad static int ld_mlx_dump(struct ld_softc *, void *, int, int);
76 1.1 ad static void ld_mlx_handler(struct mlx_ccb *);
77 1.1 ad static int ld_mlx_match(struct device *, struct cfdata *, void *);
78 1.1 ad static int ld_mlx_start(struct ld_softc *, struct buf *);
79 1.1 ad
80 1.1 ad struct cfattach ld_mlx_ca = {
81 1.1 ad sizeof(struct ld_mlx_softc),
82 1.1 ad ld_mlx_match,
83 1.1 ad ld_mlx_attach,
84 1.1 ad ld_mlx_detach
85 1.1 ad };
86 1.1 ad
87 1.1 ad static int
88 1.1 ad ld_mlx_match(struct device *parent, struct cfdata *match, void *aux)
89 1.1 ad {
90 1.1 ad
91 1.1 ad return (1);
92 1.1 ad }
93 1.1 ad
94 1.1 ad static void
95 1.1 ad ld_mlx_attach(struct device *parent, struct device *self, void *aux)
96 1.1 ad {
97 1.1 ad struct mlx_attach_args *mlxa;
98 1.1 ad struct ld_mlx_softc *sc;
99 1.1 ad struct ld_softc *ld;
100 1.1 ad struct mlx_softc *mlx;
101 1.1 ad struct mlx_sysdrive *ms;
102 1.1 ad const char *statestr;
103 1.1 ad
104 1.1 ad sc = (struct ld_mlx_softc *)self;
105 1.1 ad ld = &sc->sc_ld;
106 1.1 ad mlx = (struct mlx_softc *)parent;
107 1.1 ad mlxa = aux;
108 1.1 ad ms = &mlx->mlx_sysdrive[mlxa->mlxa_unit];
109 1.1 ad
110 1.1 ad sc->sc_hwunit = mlxa->mlxa_unit;
111 1.1 ad ld->sc_maxxfer = MLX_MAX_XFER;
112 1.1 ad ld->sc_secsize = MLX_SECTOR_SIZE;
113 1.1 ad ld->sc_maxqueuecnt = 1;
114 1.1 ad ld->sc_start = ld_mlx_start;
115 1.1 ad ld->sc_dump = ld_mlx_dump;
116 1.1 ad
117 1.1 ad /*
118 1.1 ad * Build synthetic geometry.
119 1.1 ad */
120 1.1 ad ld->sc_secperunit = ms->ms_size;
121 1.1 ad
122 1.1 ad if (ld->sc_secperunit > 0x200000) {
123 1.1 ad ld->sc_nheads = 255;
124 1.1 ad ld->sc_nsectors = 63;
125 1.1 ad ld->sc_ncylinders = ms->ms_size / (255 * 63);
126 1.1 ad } else {
127 1.1 ad ld->sc_nheads = 128;
128 1.1 ad ld->sc_nsectors = 32;
129 1.1 ad ld->sc_ncylinders = ms->ms_size / (128 * 32);
130 1.1 ad }
131 1.1 ad
132 1.1 ad /*
133 1.1 ad * Report on current status, and attach to the ld driver proper.
134 1.1 ad */
135 1.1 ad switch (ms->ms_state) {
136 1.1 ad case MLX_SYSD_ONLINE:
137 1.1 ad statestr = "online";
138 1.1 ad ld->sc_flags = LDF_ENABLED;
139 1.1 ad break;
140 1.1 ad
141 1.1 ad case MLX_SYSD_CRITICAL:
142 1.1 ad statestr = "critical";
143 1.1 ad ld->sc_flags = LDF_ENABLED;
144 1.1 ad break;
145 1.1 ad
146 1.1 ad case MLX_SYSD_OFFLINE:
147 1.1 ad statestr = "offline";
148 1.1 ad break;
149 1.1 ad
150 1.1 ad default:
151 1.1 ad statestr = "state unknown";
152 1.1 ad break;
153 1.1 ad }
154 1.1 ad
155 1.1 ad if (ms->ms_raidlevel == MLX_SYS_DRV_JBOD)
156 1.1 ad printf(": JBOD, %s\n", statestr);
157 1.1 ad else
158 1.1 ad printf(": RAID%d, %s\n", ms->ms_raidlevel, statestr);
159 1.1 ad
160 1.1 ad ldattach(ld);
161 1.1 ad }
162 1.1 ad
163 1.1 ad static int
164 1.1 ad ld_mlx_detach(struct device *dv, int flags)
165 1.1 ad {
166 1.1 ad int rv;
167 1.1 ad
168 1.1 ad if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0)
169 1.1 ad return (rv);
170 1.1 ad ldenddetach((struct ld_softc *)dv);
171 1.1 ad mlx_flush((struct mlx_softc *)dv->dv_parent, 1);
172 1.1 ad
173 1.1 ad return (0);
174 1.1 ad }
175 1.1 ad
176 1.1 ad static int
177 1.1 ad ld_mlx_dobio(struct ld_mlx_softc *sc, void *data, int datasize, int blkno,
178 1.1 ad int dowrite, struct buf *bp)
179 1.1 ad {
180 1.1 ad struct mlx_ccb *mc;
181 1.1 ad struct mlx_softc *mlx;
182 1.1 ad int s, rv;
183 1.1 ad bus_addr_t sgphys;
184 1.1 ad
185 1.1 ad mlx = (struct mlx_softc *)sc->sc_ld.sc_dv.dv_parent;
186 1.1 ad
187 1.1 ad if ((rv = mlx_ccb_alloc(mlx, &mc, bp == NULL)) != 0)
188 1.1 ad return (rv);
189 1.1 ad
190 1.1 ad /* Map the data transfer. */
191 1.1 ad rv = mlx_ccb_map(mlx, mc, data, datasize,
192 1.1 ad dowrite ? MC_XFER_OUT : MC_XFER_IN);
193 1.1 ad if (rv != 0) {
194 1.1 ad mlx_ccb_free(mlx, mc);
195 1.1 ad return (rv);
196 1.1 ad }
197 1.1 ad
198 1.1 ad /* Build the command. */
199 1.1 ad sgphys = mlx->mlx_sgls_paddr + (MLX_SGL_SIZE * mc->mc_ident);
200 1.1 ad datasize /= MLX_SECTOR_SIZE;
201 1.1 ad
202 1.1 ad if (mlx->mlx_iftype == 2)
203 1.1 ad mlx_make_type1(mc,
204 1.1 ad dowrite ? MLX_CMD_WRITESG_OLD : MLX_CMD_READSG_OLD,
205 1.1 ad datasize & 0xff, blkno, sc->sc_hwunit, sgphys,
206 1.1 ad mc->mc_nsgent);
207 1.1 ad else
208 1.1 ad mlx_make_type5(mc,
209 1.1 ad dowrite ? MLX_CMD_WRITESG : MLX_CMD_READSG,
210 1.1 ad datasize & 0xff,
211 1.1 ad (sc->sc_hwunit << 3) | ((datasize >> 8) & 0x07),
212 1.1 ad blkno, sgphys, mc->mc_nsgent);
213 1.1 ad
214 1.1 ad if (bp == NULL) {
215 1.1 ad s = splbio();
216 1.1 ad rv = mlx_ccb_poll(mlx, mc, 10000);
217 1.1 ad mlx_ccb_unmap(mlx, mc);
218 1.1 ad mlx_ccb_free(mlx, mc);
219 1.1 ad splx(s);
220 1.1 ad } else {
221 1.1 ad mc->mc_mx.mx_handler = ld_mlx_handler;
222 1.1 ad mc->mc_mx.mx_context = bp;
223 1.1 ad mc->mc_mx.mx_dv = &sc->sc_ld.sc_dv;
224 1.1 ad mlx_ccb_enqueue(mlx, mc);
225 1.1 ad rv = 0;
226 1.1 ad }
227 1.1 ad
228 1.1 ad return (rv);
229 1.1 ad }
230 1.1 ad
231 1.1 ad static int
232 1.1 ad ld_mlx_start(struct ld_softc *ld, struct buf *bp)
233 1.1 ad {
234 1.1 ad
235 1.1 ad return (ld_mlx_dobio((struct ld_mlx_softc *)ld, bp->b_data,
236 1.1 ad bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp));
237 1.1 ad }
238 1.1 ad
239 1.1 ad static void
240 1.1 ad ld_mlx_handler(struct mlx_ccb *mc)
241 1.1 ad {
242 1.1 ad struct buf *bp;
243 1.1 ad struct mlx_context *mx;
244 1.1 ad struct ld_mlx_softc *sc;
245 1.1 ad struct mlx_softc *mlx;
246 1.1 ad
247 1.1 ad mx = &mc->mc_mx;
248 1.1 ad bp = mx->mx_context;
249 1.1 ad sc = (struct ld_mlx_softc *)mx->mx_dv;
250 1.1 ad mlx = (struct mlx_softc *)sc->sc_ld.sc_dv.dv_parent;
251 1.1 ad
252 1.1 ad if (mc->mc_status != MLX_STATUS_OK) {
253 1.1 ad bp->b_flags |= B_ERROR;
254 1.1 ad bp->b_error = EIO;
255 1.1 ad bp->b_resid = bp->b_bcount;
256 1.1 ad
257 1.1 ad if (mc->mc_status == MLX_STATUS_RDWROFFLINE)
258 1.1 ad printf("%s: drive offline\n",
259 1.1 ad sc->sc_ld.sc_dv.dv_xname);
260 1.1 ad else
261 1.1 ad printf("%s: I/O error - %s\n",
262 1.1 ad sc->sc_ld.sc_dv.dv_xname,
263 1.1 ad mlx_ccb_diagnose(mc));
264 1.1 ad } else
265 1.1 ad bp->b_resid = 0;
266 1.1 ad
267 1.1 ad mlx_ccb_unmap(mlx, mc);
268 1.1 ad mlx_ccb_free(mlx, mc);
269 1.1 ad lddone(&sc->sc_ld, bp);
270 1.1 ad }
271 1.1 ad
272 1.1 ad static int
273 1.1 ad ld_mlx_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt)
274 1.1 ad {
275 1.1 ad
276 1.1 ad return (ld_mlx_dobio((struct ld_mlx_softc *)ld, data,
277 1.1 ad blkcnt * ld->sc_secsize, blkno, 1, NULL));
278 1.1 ad }
279