1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000 Michael Smith
5 * Copyright (c) 2001 Scott Long
6 * Copyright (c) 2000 BSDi
7 * Copyright (c) 2001-2010 Adaptec, Inc.
8 * Copyright (c) 2010-2012 PMC-Sierra, Inc.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 /*
35 * PCI bus interface and resource allocation.
36 */
37
38 #include "opt_aacraid.h"
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
44
45 #include <sys/bio.h>
46 #include <sys/bus.h>
47 #include <sys/conf.h>
48 #include <sys/disk.h>
49
50 #include <machine/bus.h>
51 #include <machine/resource.h>
52 #include <sys/rman.h>
53
54 #include <dev/pci/pcireg.h>
55 #include <dev/pci/pcivar.h>
56
57 #include <dev/aacraid/aacraid_reg.h>
58 #include <sys/aac_ioctl.h>
59 #include <dev/aacraid/aacraid_debug.h>
60 #include <dev/aacraid/aacraid_var.h>
61
62 static int aacraid_pci_probe(device_t dev);
63 static int aacraid_pci_attach(device_t dev);
64
65 static device_method_t aacraid_methods[] = {
66 /* Device interface */
67 DEVMETHOD(device_probe, aacraid_pci_probe),
68 DEVMETHOD(device_attach, aacraid_pci_attach),
69 DEVMETHOD(device_detach, aacraid_detach),
70 DEVMETHOD(device_suspend, aacraid_suspend),
71 DEVMETHOD(device_resume, aacraid_resume),
72
73 DEVMETHOD(bus_print_child, bus_generic_print_child),
74 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
75 { 0, 0 }
76 };
77
78 static driver_t aacraid_pci_driver = {
79 "aacraid",
80 aacraid_methods,
81 sizeof(struct aac_softc)
82 };
83
84 struct aac_ident
85 {
86 u_int16_t vendor;
87 u_int16_t device;
88 u_int16_t subvendor;
89 u_int16_t subdevice;
90 int hwif;
91 int quirks;
92 char *desc;
93 } aacraid_family_identifiers[] = {
94 {0x9005, 0x028b, 0, 0, AAC_HWIF_SRC, 0,
95 "Adaptec RAID Controller"},
96 {0x9005, 0x028c, 0, 0, AAC_HWIF_SRCV, 0,
97 "Adaptec RAID Controller"},
98 {0x9005, 0x028d, 0, 0, AAC_HWIF_SRCV, 0,
99 "Adaptec RAID Controller"},
100 {0, 0, 0, 0, 0, 0, 0}
101 };
102
103 DRIVER_MODULE(aacraid, pci, aacraid_pci_driver, 0, 0);
104 MODULE_PNP_INFO("U16:vendor;U16:device", pci, aacraid,
105 aacraid_family_identifiers,
106 nitems(aacraid_family_identifiers) - 1);
107 MODULE_DEPEND(aacraid, pci, 1, 1, 1);
108
109 static struct aac_ident *
aac_find_ident(device_t dev)110 aac_find_ident(device_t dev)
111 {
112 struct aac_ident *m;
113 u_int16_t vendid, devid;
114
115 vendid = pci_get_vendor(dev);
116 devid = pci_get_device(dev);
117
118 for (m = aacraid_family_identifiers; m->vendor != 0; m++) {
119 if ((m->vendor == vendid) && (m->device == devid))
120 return (m);
121 }
122
123 return (NULL);
124 }
125
126 /*
127 * Determine whether this is one of our supported adapters.
128 */
129 static int
aacraid_pci_probe(device_t dev)130 aacraid_pci_probe(device_t dev)
131 {
132 struct aac_ident *id;
133
134 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
135
136 if ((id = aac_find_ident(dev)) != NULL) {
137 device_set_desc(dev, id->desc);
138 return(BUS_PROBE_DEFAULT);
139 }
140 return(ENXIO);
141 }
142
143 /*
144 * Allocate resources for our device, set up the bus interface.
145 */
146 static int
aacraid_pci_attach(device_t dev)147 aacraid_pci_attach(device_t dev)
148 {
149 struct aac_softc *sc;
150 struct aac_ident *id;
151 int error;
152 u_int32_t command;
153
154 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
155
156 /*
157 * Initialise softc.
158 */
159 sc = device_get_softc(dev);
160 bzero(sc, sizeof(*sc));
161 sc->aac_dev = dev;
162
163 /* assume failure is 'not configured' */
164 error = ENXIO;
165
166 /*
167 * Verify that the adapter is correctly set up in PCI space.
168 */
169 pci_enable_busmaster(dev);
170 command = pci_read_config(sc->aac_dev, PCIR_COMMAND, 2);
171 if (!(command & PCIM_CMD_BUSMASTEREN)) {
172 device_printf(sc->aac_dev, "can't enable bus-master feature\n");
173 goto out;
174 }
175
176 /*
177 * Detect the hardware interface version, set up the bus interface
178 * indirection.
179 */
180 id = aac_find_ident(dev);
181 sc->aac_hwif = id->hwif;
182 switch(sc->aac_hwif) {
183 case AAC_HWIF_SRC:
184 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRC");
185 sc->aac_if = aacraid_src_interface;
186 break;
187 case AAC_HWIF_SRCV:
188 fwprintf(sc, HBA_FLAGS_DBG_INIT_B, "set hardware up for PMC SRCv");
189 sc->aac_if = aacraid_srcv_interface;
190 break;
191 default:
192 sc->aac_hwif = AAC_HWIF_UNKNOWN;
193 device_printf(sc->aac_dev, "unknown hardware type\n");
194 error = ENXIO;
195 goto out;
196 }
197
198 /* assume failure is 'out of memory' */
199 error = ENOMEM;
200
201 /*
202 * Allocate the PCI register window.
203 */
204 sc->aac_regs_rid0 = PCIR_BAR(0);
205 if ((sc->aac_regs_res0 = bus_alloc_resource_any(sc->aac_dev,
206 SYS_RES_MEMORY, &sc->aac_regs_rid0, RF_ACTIVE)) == NULL) {
207 device_printf(sc->aac_dev,
208 "couldn't allocate register window 0\n");
209 goto out;
210 }
211 sc->aac_btag0 = rman_get_bustag(sc->aac_regs_res0);
212 sc->aac_bhandle0 = rman_get_bushandle(sc->aac_regs_res0);
213
214 sc->aac_regs_rid1 = PCIR_BAR(2);
215 if ((sc->aac_regs_res1 = bus_alloc_resource_any(sc->aac_dev,
216 SYS_RES_MEMORY, &sc->aac_regs_rid1, RF_ACTIVE)) == NULL) {
217 device_printf(sc->aac_dev,
218 "couldn't allocate register window 1\n");
219 goto out;
220 }
221 sc->aac_btag1 = rman_get_bustag(sc->aac_regs_res1);
222 sc->aac_bhandle1 = rman_get_bushandle(sc->aac_regs_res1);
223
224 /*
225 * Allocate the parent bus DMA tag appropriate for our PCI interface.
226 *
227 * Note that some of these controllers are 64-bit capable.
228 */
229 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
230 PAGE_SIZE, 0, /* algnmnt, boundary */
231 BUS_SPACE_MAXADDR, /* lowaddr */
232 BUS_SPACE_MAXADDR, /* highaddr */
233 NULL, NULL, /* filter, filterarg */
234 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
235 BUS_SPACE_UNRESTRICTED, /* nsegments */
236 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
237 0, /* flags */
238 NULL, NULL, /* No locking needed */
239 &sc->aac_parent_dmat)) {
240 device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
241 goto out;
242 }
243
244 /* Set up quirks */
245 sc->flags = id->quirks;
246
247 /*
248 * Do bus-independent initialisation.
249 */
250 error = aacraid_attach(sc);
251
252 out:
253 if (error)
254 aacraid_free(sc);
255 return(error);
256 }
257