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("$FreeBSD$");
31
32 #include <dev/ips/ipsreg.h>
33 #include <dev/ips/ips.h>
34
35 #include <dev/pci/pcireg.h>
36 #include <dev/pci/pcivar.h>
37
38 static int ips_pci_free(ips_softc_t *sc);
39 static void ips_intrhook(void *arg);
40
41 static int ips_pci_probe(device_t dev)
42 {
43
44 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
45 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
46 device_set_desc(dev, "IBM ServeRAID Adapter");
47 return (BUS_PROBE_DEFAULT);
48 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
49 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
50 device_set_desc(dev, "IBM ServeRAID Adapter");
51 return (BUS_PROBE_DEFAULT);
52 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
53 (pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
54 device_set_desc(dev, "Adaptec ServeRAID Adapter");
55 return (BUS_PROBE_DEFAULT);
56 }
57 return(ENXIO);
58 }
59
60 static int ips_pci_attach(device_t dev)
61 {
62 ips_softc_t *sc;
63
64
65 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
66 device_printf(dev, "device is disabled\n");
67 /* but return 0 so the !$)$)*!$*) unit isn't reused */
68 return (0);
69 }
70 DEVICE_PRINTF(1, dev, "in attach.\n");
71 sc = (ips_softc_t *)device_get_softc(dev);
72 if(!sc){
73 printf("how is sc NULL?!\n");
74 return (ENXIO);
75 }
76 bzero(sc, sizeof(ips_softc_t));
77 sc->dev = dev;
78
79 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
80 sc->ips_adapter_reinit = ips_morpheus_reinit;
81 sc->ips_adapter_intr = ips_morpheus_intr;
82 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
83 sc->ips_poll_cmd = ips_morpheus_poll;
84 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
85 sc->ips_adapter_reinit = ips_copperhead_reinit;
86 sc->ips_adapter_intr = ips_copperhead_intr;
87 sc->ips_issue_cmd = ips_issue_copperhead_cmd;
88 sc->ips_poll_cmd = ips_copperhead_poll;
89 } else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
90 sc->ips_adapter_reinit = ips_morpheus_reinit;
91 sc->ips_adapter_intr = ips_morpheus_intr;
92 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
93 sc->ips_poll_cmd = ips_morpheus_poll;
94 } else
95 goto error;
96 /* make sure busmastering is on */
97 pci_enable_busmaster(dev);
98 /* seting up io space */
99 sc->iores = NULL;
100 PRINTF(10, "trying MEMIO\n");
101 if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
102 sc->rid = PCIR_BAR(1);
103 else
104 sc->rid = PCIR_BAR(0);
105 sc->iotype = SYS_RES_MEMORY;
106 sc->iores = bus_alloc_resource_any(dev, sc->iotype, &sc->rid,
107 RF_ACTIVE);
108 if(!sc->iores){
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 /*allocate an interrupt. when does the irq become active? after leaving attach? */
122 sc->irqrid = 0;
123 if(!(sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
124 &sc->irqrid, RF_SHAREABLE | RF_ACTIVE))){
125 device_printf(dev, "irq allocation failed\n");
126 goto error;
127 }
128 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO|INTR_MPSAFE, NULL,
129 sc->ips_adapter_intr, sc, &sc->irqcookie)){
130 device_printf(dev, "irq setup failed\n");
131 goto error;
132 }
133 if (bus_dma_tag_create( /* PCI parent */bus_get_dma_tag(dev),
134 /* alignemnt */ 1,
135 /* boundary */ 0,
136 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
137 /* highaddr */ BUS_SPACE_MAXADDR,
138 /* filter */ NULL,
139 /* filterarg */ NULL,
140 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
141 /* numsegs */ IPS_MAX_SG_ELEMENTS,
142 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
143 /* flags */ 0,
144 /* lockfunc */ NULL,
145 /* lockarg */ NULL,
146 &sc->adapter_dmatag) != 0) {
147 printf("IPS can't alloc dma tag\n");
148 goto error;
149 }
150 sc->ips_ich.ich_func = ips_intrhook;
151 sc->ips_ich.ich_arg = sc;
152 mtx_init(&sc->queue_mtx, "IPS bioqueue lock", NULL, MTX_DEF);
153 sema_init(&sc->cmd_sema, 0, "IPS Command Semaphore");
154 bioq_init(&sc->queue);
155 if (config_intrhook_establish(&sc->ips_ich) != 0) {
156 printf("IPS can't establish configuration hook\n");
157 goto error;
158 }
159 return 0;
160 error:
161 ips_pci_free(sc);
162 return (ENXIO);
163 }
164
165 static void
166 ips_intrhook(void *arg)
167 {
168 struct ips_softc *sc = (struct ips_softc *)arg;
169
170 config_intrhook_disestablish(&sc->ips_ich);
171 if (ips_adapter_init(sc))
172 ips_pci_free(sc);
173 else
174 sc->configured = 1;
175 }
176
177 static int ips_pci_free(ips_softc_t *sc)
178 {
179 if(sc->adapter_dmatag)
180 bus_dma_tag_destroy(sc->adapter_dmatag);
181 if(sc->irqcookie)
182 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
183 if(sc->irqres)
184 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
185 if(sc->iores)
186 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
187 sc->configured = 0;
188 mtx_destroy(&sc->queue_mtx);
189 sema_destroy(&sc->cmd_sema);
190 return 0;
191 }
192
193 static int ips_pci_detach(device_t dev)
194 {
195 ips_softc_t *sc;
196 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
197 sc = (ips_softc_t *) device_get_softc(dev);
198 if (sc->configured) {
199 sc->configured = 0;
200 ips_flush_cache(sc);
201 if(ips_adapter_free(sc))
202 return EBUSY;
203 ips_pci_free(sc);
204 bioq_flush(&sc->queue, NULL, ENXIO);
205 }
206 return 0;
207 }
208
209 static int ips_pci_shutdown(device_t dev)
210 {
211 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
212 if (sc->configured) {
213 ips_flush_cache(sc);
214 }
215 return 0;
216 }
217
218 static device_method_t ips_driver_methods[] = {
219 DEVMETHOD(device_probe, ips_pci_probe),
220 DEVMETHOD(device_attach, ips_pci_attach),
221 DEVMETHOD(device_detach, ips_pci_detach),
222 DEVMETHOD(device_shutdown, ips_pci_shutdown),
223 {0,0}
224 };
225
226 static driver_t ips_pci_driver = {
227 "ips",
228 ips_driver_methods,
229 sizeof(ips_softc_t),
230 };
231
232 static devclass_t ips_devclass;
233 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
Cache object: d795e2b12d8554c6bbfc8fecd9d32f6a
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