1 /*-
2 * Copyright (c) 2002 Adaptec Inc.
3 * All rights reserved.
4 *
5 * Written by: David Jeffery
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/dev/ips/ips_pci.c,v 1.10 2004/03/19 17:36:47 scottl Exp $
29 */
30
31 #include <dev/raid/ips/ips.h>
32
33 static int ips_pci_free(ips_softc_t *sc);
34 static void ips_intrhook(void *arg);
35
36 static struct ips_pci_product {
37 uint16_t vendor, device;
38 const char *desc;
39 int (*ips_adapter_reinit)(struct ips_softc *, int);
40 void (*ips_adapter_intr)(void *);
41 void (*ips_issue_cmd)(ips_command_t *);
42 void (*ips_poll_cmd)(ips_command_t *);
43 } ips_pci_products[] = {
44 { IPS_VENDOR_ID, IPS_MORPHEUS_DEVICE_ID, "IBM ServeRAID Adapter",
45 ips_morpheus_reinit, ips_morpheus_intr, ips_issue_morpheus_cmd,
46 ips_morpheus_poll },
47 { IPS_VENDOR_ID, IPS_COPPERHEAD_DEVICE_ID, "IBM ServeRAID Adapter",
48 ips_copperhead_reinit, ips_copperhead_intr, ips_issue_copperhead_cmd,
49 ips_copperhead_poll },
50 { IPS_VENDOR_ID_ADAPTEC, IPS_MARCO_DEVICE_ID,
51 "Adaptec ServeRAID Adapter", ips_morpheus_reinit, ips_morpheus_intr,
52 ips_issue_morpheus_cmd, ips_morpheus_poll },
53 { 0, 0, NULL }
54 };
55
56 static int
ips_pci_probe(device_t dev)57 ips_pci_probe(device_t dev)
58 {
59 uint16_t vendor = pci_get_vendor(dev);
60 uint16_t device = pci_get_device(dev);
61 struct ips_pci_product *pp;
62 ips_softc_t *sc;
63
64 for (pp = ips_pci_products; pp->vendor; pp++) {
65 if (vendor == pp->vendor && device == pp->device) {
66 sc = (ips_softc_t *)device_get_softc(dev);
67 sc->ips_adapter_reinit = pp->ips_adapter_reinit;
68 sc->ips_adapter_intr = pp->ips_adapter_intr;
69 sc->ips_issue_cmd = pp->ips_issue_cmd;
70 sc->ips_poll_cmd = pp->ips_poll_cmd;
71 device_set_desc(dev, pp->desc);
72 return (0);
73 }
74 }
75 return (ENXIO);
76 }
77
78 static int
ips_pci_attach(device_t dev)79 ips_pci_attach(device_t dev)
80 {
81 u_int32_t command;
82 ips_softc_t *sc;
83 int error;
84
85 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
86 device_printf(dev, "device is disabled\n");
87 /* but return 0 so the !$)$)*!$*) unit isn't reused */
88 return (0);
89 }
90 DEVICE_PRINTF(1, dev, "in attach.\n");
91 sc = (ips_softc_t *)device_get_softc(dev);
92 sc->dev = dev;
93 /* make sure busmastering is on */
94 pci_enable_busmaster(dev);
95 command = pci_read_config(dev, PCIR_COMMAND, 1);
96 /* seting up io space */
97 sc->iores = NULL;
98 if (command & PCIM_CMD_MEMEN) {
99 PRINTF(10, "trying MEMIO\n");
100 if (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
101 sc->rid = PCIR_BAR(1);
102 else
103 sc->rid = PCIR_BAR(0);
104 sc->iotype = SYS_RES_MEMORY;
105 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
106 &sc->rid, RF_ACTIVE);
107 }
108 if (sc->iores == NULL && command & PCIM_CMD_PORTEN) {
109 PRINTF(10, "trying PORTIO\n");
110 sc->rid = PCIR_BAR(0);
111 sc->iotype = SYS_RES_IOPORT;
112 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
113 &sc->rid, RF_ACTIVE);
114 }
115 if (sc->iores == NULL) {
116 device_printf(dev, "resource allocation failed\n");
117 return (ENXIO);
118 }
119 sc->bustag = rman_get_bustag(sc->iores);
120 sc->bushandle = rman_get_bushandle(sc->iores);
121 /*
122 * allocate an interrupt. when does the irq become active?
123 * after leaving attach?
124 */
125 sc->irqrid = 0;
126 if ((sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
127 &sc->irqrid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
128 device_printf(dev, "irq allocation failed\n");
129 goto error;
130 }
131 error = bus_setup_intr(dev, sc->irqres, 0,
132 sc->ips_adapter_intr, sc,
133 &sc->irqcookie, NULL);
134 if (error) {
135 device_printf(dev, "irq setup failed\n");
136 goto error;
137 }
138 if (bus_dma_tag_create( /* parent */ NULL,
139 /* alignemnt */ 1,
140 /* boundary */ 0,
141 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
142 /* highaddr */ BUS_SPACE_MAXADDR,
143 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
144 /* numsegs */ IPS_MAX_SG_ELEMENTS,
145 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
146 /* flags */ 0,
147 &sc->adapter_dmatag) != 0) {
148 kprintf("IPS can't alloc dma tag\n");
149 goto error;
150 }
151 sc->ips_ich.ich_func = ips_intrhook;
152 sc->ips_ich.ich_arg = sc;
153 sc->ips_ich.ich_desc = "ips";
154 lockinit(&sc->queue_lock, "ipslk", 0, LK_CANRECURSE);
155 bioq_init(&sc->bio_queue);
156 if (config_intrhook_establish(&sc->ips_ich) != 0) {
157 kprintf("IPS can't establish configuration hook\n");
158 goto error;
159 }
160 return 0;
161 error:
162 ips_pci_free(sc);
163 return (ENXIO);
164 }
165
166 static void
ips_intrhook(void * arg)167 ips_intrhook(void *arg)
168 {
169 struct ips_softc *sc = arg;
170
171 config_intrhook_disestablish(&sc->ips_ich);
172 if (ips_adapter_init(sc))
173 ips_pci_free(sc);
174 else
175 sc->configured = 1;
176 }
177
178 static int
ips_pci_free(ips_softc_t * sc)179 ips_pci_free(ips_softc_t *sc)
180 {
181
182 if (sc->adapter_dmatag)
183 bus_dma_tag_destroy(sc->adapter_dmatag);
184 if (sc->irqcookie)
185 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
186 if (sc->irqres)
187 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid,
188 sc->irqres);
189 if (sc->iores)
190 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
191 sc->configured = 0;
192 return 0;
193 }
194
195 static int
ips_pci_detach(device_t dev)196 ips_pci_detach(device_t dev)
197 {
198 ips_softc_t *sc;
199
200 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
201 sc = (ips_softc_t *)device_get_softc(dev);
202 if (sc->configured) {
203 sc->configured = 0;
204 ips_flush_cache(sc);
205 if (ips_adapter_free(sc))
206 return EBUSY;
207 ips_pci_free(sc);
208 }
209 return 0;
210 }
211
212 static int
ips_pci_shutdown(device_t dev)213 ips_pci_shutdown(device_t dev)
214 {
215 ips_softc_t *sc;
216
217 sc = (ips_softc_t *)device_get_softc(dev);
218 if (sc->configured)
219 ips_flush_cache(sc);
220 return 0;
221 }
222
223 static device_method_t ips_driver_methods[] = {
224 DEVMETHOD(device_probe, ips_pci_probe),
225 DEVMETHOD(device_attach, ips_pci_attach),
226 DEVMETHOD(device_detach, ips_pci_detach),
227 DEVMETHOD(device_shutdown, ips_pci_shutdown),
228 DEVMETHOD_END
229 };
230
231 static driver_t ips_pci_driver = {
232 "ips",
233 ips_driver_methods,
234 sizeof(ips_softc_t),
235 };
236
237 static devclass_t ips_devclass;
238 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, NULL, NULL);
239