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6 * Copyright 1994-2009 The FreeBSD Project.
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32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/selinfo.h>
41 #include <sys/module.h>
42 #include <sys/malloc.h>
43 #include <sys/sysctl.h>
50 #include <geom/geom_disk.h>
55 #include <machine/md_var.h>
56 #include <machine/bus.h>
59 #include <dev/mfi/mfireg.h>
60 #include <dev/mfi/mfi_ioctl.h>
61 #include <dev/mfi/mfivar.h>
63 static int mfi_syspd_probe(device_t dev);
64 static int mfi_syspd_attach(device_t dev);
65 static int mfi_syspd_detach(device_t dev);
67 static disk_open_t mfi_syspd_open;
68 static disk_close_t mfi_syspd_close;
69 static disk_strategy_t mfi_syspd_strategy;
70 static dumper_t mfi_syspd_dump;
72 static devclass_t mfi_syspd_devclass;
74 static device_method_t mfi_syspd_methods[] = {
75 DEVMETHOD(device_probe, mfi_syspd_probe),
76 DEVMETHOD(device_attach, mfi_syspd_attach),
77 DEVMETHOD(device_detach, mfi_syspd_detach),
81 static driver_t mfi_syspd_driver = {
84 sizeof(struct mfi_system_pd)
87 DRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0);
90 mfi_syspd_probe(device_t dev)
96 mfi_syspd_attach(device_t dev)
98 struct mfi_system_pd *sc;
99 struct mfi_pd_info *pd_info;
100 struct mfi_system_pending *syspd_pend;
104 sc = device_get_softc(dev);
105 pd_info = device_get_ivars(dev);
107 sc->pd_id = pd_info->ref.v.device_id;
108 sc->pd_unit = device_get_unit(dev);
109 sc->pd_info = pd_info;
110 sc->pd_controller = device_get_softc(device_get_parent(dev));
113 sectors = pd_info->raw_size;
114 secsize = MFI_SECTOR_LEN;
115 mtx_lock(&sc->pd_controller->mfi_io_lock);
116 TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
117 TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh,
119 TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh,
120 syspd_pend, pd_link);
121 free(syspd_pend, M_MFIBUF);
124 mtx_unlock(&sc->pd_controller->mfi_io_lock);
125 device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n",
126 sectors / (1024 * 1024 / secsize), sectors, sc->pd_id);
127 sc->pd_disk = disk_alloc();
128 sc->pd_disk->d_drv1 = sc;
129 sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize,
130 (sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE);
131 sc->pd_disk->d_name = "mfisyspd";
132 sc->pd_disk->d_open = mfi_syspd_open;
133 sc->pd_disk->d_close = mfi_syspd_close;
134 sc->pd_disk->d_strategy = mfi_syspd_strategy;
135 sc->pd_disk->d_dump = mfi_syspd_dump;
136 sc->pd_disk->d_unit = sc->pd_unit;
137 sc->pd_disk->d_sectorsize = secsize;
138 sc->pd_disk->d_mediasize = sectors * secsize;
139 if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) {
140 sc->pd_disk->d_fwheads = 255;
141 sc->pd_disk->d_fwsectors = 63;
143 sc->pd_disk->d_fwheads = 64;
144 sc->pd_disk->d_fwsectors = 32;
146 disk_create(sc->pd_disk, DISK_VERSION);
148 device_printf(dev, " SYSPD volume attached\n");
154 mfi_syspd_detach(device_t dev)
156 struct mfi_system_pd *sc;
158 sc = device_get_softc(dev);
159 device_printf(dev, "Detaching syspd\n");
160 mtx_lock(&sc->pd_controller->mfi_io_lock);
161 if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) ||
162 (sc->pd_flags & MFI_DISK_FLAGS_OPEN)) &&
163 (sc->pd_controller->mfi_keep_deleted_volumes ||
164 sc->pd_controller->mfi_detaching)) {
165 mtx_unlock(&sc->pd_controller->mfi_io_lock);
166 device_printf(dev, "Cant detach syspd\n");
169 mtx_unlock(&sc->pd_controller->mfi_io_lock);
171 disk_destroy(sc->pd_disk);
172 mtx_lock(&sc->pd_controller->mfi_io_lock);
173 TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
174 mtx_unlock(&sc->pd_controller->mfi_io_lock);
175 free(sc->pd_info, M_MFIBUF);
180 mfi_syspd_open(struct disk *dp)
182 struct mfi_system_pd *sc;
186 mtx_lock(&sc->pd_controller->mfi_io_lock);
187 if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED)
190 sc->pd_flags |= MFI_DISK_FLAGS_OPEN;
193 mtx_unlock(&sc->pd_controller->mfi_io_lock);
198 mfi_syspd_close(struct disk *dp)
200 struct mfi_system_pd *sc;
203 mtx_lock(&sc->pd_controller->mfi_io_lock);
204 sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN;
205 mtx_unlock(&sc->pd_controller->mfi_io_lock);
211 mfi_syspd_disable(struct mfi_system_pd *sc)
214 device_printf(sc->pd_dev, "syspd disable \n");
215 mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
216 if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) {
217 if (sc->pd_controller->mfi_delete_busy_volumes)
219 device_printf(sc->pd_dev,
220 "Unable to delete busy syspd device\n");
223 sc->pd_flags |= MFI_DISK_FLAGS_DISABLED;
228 mfi_syspd_enable(struct mfi_system_pd *sc)
231 device_printf(sc->pd_dev, "syspd enable \n");
232 mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
233 sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED;
237 mfi_syspd_strategy(struct bio *bio)
239 struct mfi_system_pd *sc;
240 struct mfi_softc *controller;
242 sc = bio->bio_disk->d_drv1;
245 bio->bio_error = EINVAL;
246 bio->bio_flags |= BIO_ERROR;
247 bio->bio_resid = bio->bio_bcount;
252 controller = sc->pd_controller;
253 bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id;
254 /* Mark it as system PD IO */
255 bio->bio_driver2 = (void *)MFI_SYS_PD_IO;
256 mtx_lock(&controller->mfi_io_lock);
257 mfi_enqueue_bio(controller, bio);
258 mfi_startio(controller);
259 mtx_unlock(&controller->mfi_io_lock);
264 mfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset,
267 struct mfi_system_pd *sc;
268 struct mfi_softc *parent_sc;
274 parent_sc = sc->pd_controller;
277 if ((error = mfi_dump_syspd_blocks(parent_sc,
278 sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0)
281 /* mfi_sync_cache(parent_sc, sc->ld_id); */