FreeBSD/Linux Kernel Cross Reference
sys/dev/ips/ips_pci.c
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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD: releng/5.3/sys/dev/ips/ips_pci.c 127205 2004-03-19 17:36:47Z scottl $");
31
32 #include <dev/ips/ips.h>
33
34 static int ips_pci_free(ips_softc_t *sc);
35 static void ips_intrhook(void *arg);
36
37 static int ips_pci_probe(device_t dev)
38 {
39
40 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
41 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
42 device_set_desc(dev, "IBM ServeRAID Adapter");
43 return 0;
44 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
45 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
46 device_set_desc(dev, "IBM ServeRAID Adapter");
47 return (0);
48 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
49 (pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
50 device_set_desc(dev, "Adaptec ServeRAID Adapter");
51 return (0);
52 }
53 return(ENXIO);
54 }
55
56 static int ips_pci_attach(device_t dev)
57 {
58 u_int32_t command;
59 ips_softc_t *sc;
60
61
62 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
63 device_printf(dev, "device is disabled\n");
64 /* but return 0 so the !$)$)*!$*) unit isn't reused */
65 return (0);
66 }
67 DEVICE_PRINTF(1, dev, "in attach.\n");
68 sc = (ips_softc_t *)device_get_softc(dev);
69 if(!sc){
70 printf("how is sc NULL?!\n");
71 return (ENXIO);
72 }
73 bzero(sc, sizeof(ips_softc_t));
74 sc->dev = dev;
75
76 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
77 sc->ips_adapter_reinit = ips_morpheus_reinit;
78 sc->ips_adapter_intr = ips_morpheus_intr;
79 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
80 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
81 sc->ips_adapter_reinit = ips_copperhead_reinit;
82 sc->ips_adapter_intr = ips_copperhead_intr;
83 sc->ips_issue_cmd = ips_issue_copperhead_cmd;
84 } else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
85 sc->ips_adapter_reinit = ips_morpheus_reinit;
86 sc->ips_adapter_intr = ips_morpheus_intr;
87 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
88 } else
89 goto error;
90 /* make sure busmastering is on */
91 command = pci_read_config(dev, PCIR_COMMAND, 1);
92 command |= PCIM_CMD_BUSMASTEREN;
93 pci_write_config(dev, PCIR_COMMAND, command, 1);
94 /* seting up io space */
95 sc->iores = NULL;
96 if(command & PCIM_CMD_MEMEN){
97 PRINTF(10, "trying MEMIO\n");
98 if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
99 sc->rid = PCIR_BAR(1);
100 else
101 sc->rid = PCIR_BAR(0);
102 sc->iotype = SYS_RES_MEMORY;
103 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
104 &sc->rid, RF_ACTIVE);
105 }
106 if(!sc->iores && command & PCIM_CMD_PORTEN){
107 PRINTF(10, "trying PORTIO\n");
108 sc->rid = PCIR_BAR(0);
109 sc->iotype = SYS_RES_IOPORT;
110 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
111 &sc->rid, RF_ACTIVE);
112 }
113 if(sc->iores == NULL){
114 device_printf(dev, "resource allocation failed\n");
115 return (ENXIO);
116 }
117 sc->bustag = rman_get_bustag(sc->iores);
118 sc->bushandle = rman_get_bushandle(sc->iores);
119 /*allocate an interrupt. when does the irq become active? after leaving attach? */
120 sc->irqrid = 0;
121 if(!(sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
122 &sc->irqrid, RF_SHAREABLE | RF_ACTIVE))){
123 device_printf(dev, "irq allocation failed\n");
124 goto error;
125 }
126 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO, sc->ips_adapter_intr, sc, &sc->irqcookie)){
127 device_printf(dev, "irq setup failed\n");
128 goto error;
129 }
130 if (bus_dma_tag_create( /* parent */ NULL,
131 /* alignemnt */ 1,
132 /* boundary */ 0,
133 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
134 /* highaddr */ BUS_SPACE_MAXADDR,
135 /* filter */ NULL,
136 /* filterarg */ NULL,
137 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
138 /* numsegs */ IPS_MAX_SG_ELEMENTS,
139 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
140 /* flags */ 0,
141 /* lockfunc */ busdma_lock_mutex,
142 /* lockarg */ &Giant,
143 &sc->adapter_dmatag) != 0) {
144 printf("IPS can't alloc dma tag\n");
145 goto error;
146 }
147 sc->ips_ich.ich_func = ips_intrhook;
148 sc->ips_ich.ich_arg = sc;
149 mtx_init(&sc->queue_mtx, "IPS bioqueue lock", MTX_DEF, 0);
150 bioq_init(&sc->queue);
151 if (config_intrhook_establish(&sc->ips_ich) != 0) {
152 printf("IPS can't establish configuration hook\n");
153 goto error;
154 }
155 return 0;
156 error:
157 ips_pci_free(sc);
158 return (ENXIO);
159 }
160
161 static void
162 ips_intrhook(void *arg)
163 {
164 struct ips_softc *sc = (struct ips_softc *)arg;
165
166 config_intrhook_disestablish(&sc->ips_ich);
167 if (ips_adapter_init(sc))
168 ips_pci_free(sc);
169 else
170 sc->configured = 1;
171 }
172
173 static int ips_pci_free(ips_softc_t *sc)
174 {
175 if(sc->adapter_dmatag)
176 bus_dma_tag_destroy(sc->adapter_dmatag);
177 if(sc->irqcookie)
178 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
179 if(sc->irqres)
180 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
181 if(sc->iores)
182 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
183 sc->configured = 0;
184 return 0;
185 }
186
187 static int ips_pci_detach(device_t dev)
188 {
189 ips_softc_t *sc;
190 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
191 sc = (ips_softc_t *) device_get_softc(dev);
192 if (sc->configured) {
193 sc->configured = 0;
194 ips_flush_cache(sc);
195 if(ips_adapter_free(sc))
196 return EBUSY;
197 ips_pci_free(sc);
198 bioq_flush(&sc->queue, NULL, ENXIO);
199 }
200 return 0;
201 }
202
203 static int ips_pci_shutdown(device_t dev)
204 {
205 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
206 if (sc->configured) {
207 ips_flush_cache(sc);
208 }
209 return 0;
210 }
211
212 static device_method_t ips_driver_methods[] = {
213 DEVMETHOD(device_probe, ips_pci_probe),
214 DEVMETHOD(device_attach, ips_pci_attach),
215 DEVMETHOD(device_detach, ips_pci_detach),
216 DEVMETHOD(device_shutdown, ips_pci_shutdown),
217 {0,0}
218 };
219
220 static driver_t ips_pci_driver = {
221 "ips",
222 ips_driver_methods,
223 sizeof(ips_softc_t),
224 };
225
226 static devclass_t ips_devclass;
227 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
Cache object: b1d1f947792a5fdb8e4a3650594462d5
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