2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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8 * Copyright 1994-2009 The FreeBSD Project.
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34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/malloc.h>
45 #include <sys/mutex.h>
46 #include <sys/selinfo.h>
47 #include <sys/sysctl.h>
54 #include <geom/geom_disk.h>
59 #include <machine/md_var.h>
60 #include <machine/bus.h>
63 #include <dev/mfi/mfireg.h>
64 #include <dev/mfi/mfi_ioctl.h>
65 #include <dev/mfi/mfivar.h>
67 static int mfi_syspd_probe(device_t dev);
68 static int mfi_syspd_attach(device_t dev);
69 static int mfi_syspd_detach(device_t dev);
71 static disk_open_t mfi_syspd_open;
72 static disk_close_t mfi_syspd_close;
73 static disk_strategy_t mfi_syspd_strategy;
74 static dumper_t mfi_syspd_dump;
76 static devclass_t mfi_syspd_devclass;
78 static device_method_t mfi_syspd_methods[] = {
79 DEVMETHOD(device_probe, mfi_syspd_probe),
80 DEVMETHOD(device_attach, mfi_syspd_attach),
81 DEVMETHOD(device_detach, mfi_syspd_detach),
85 static driver_t mfi_syspd_driver = {
88 sizeof(struct mfi_system_pd)
91 DRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0);
94 mfi_syspd_probe(device_t dev)
100 mfi_syspd_attach(device_t dev)
102 struct mfi_system_pd *sc;
103 struct mfi_pd_info *pd_info;
104 struct mfi_system_pending *syspd_pend;
108 sc = device_get_softc(dev);
109 pd_info = device_get_ivars(dev);
111 sc->pd_id = pd_info->ref.v.device_id;
112 sc->pd_unit = device_get_unit(dev);
113 sc->pd_info = pd_info;
114 sc->pd_controller = device_get_softc(device_get_parent(dev));
117 sectors = pd_info->raw_size;
118 secsize = MFI_SECTOR_LEN;
119 mtx_lock(&sc->pd_controller->mfi_io_lock);
120 TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
121 TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh,
123 TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh,
124 syspd_pend, pd_link);
125 free(syspd_pend, M_MFIBUF);
128 mtx_unlock(&sc->pd_controller->mfi_io_lock);
129 device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n",
130 sectors / (1024 * 1024 / secsize), sectors, sc->pd_id);
131 sc->pd_disk = disk_alloc();
132 sc->pd_disk->d_drv1 = sc;
133 sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize,
134 (sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE);
135 sc->pd_disk->d_name = "mfisyspd";
136 sc->pd_disk->d_open = mfi_syspd_open;
137 sc->pd_disk->d_close = mfi_syspd_close;
138 sc->pd_disk->d_strategy = mfi_syspd_strategy;
139 sc->pd_disk->d_dump = mfi_syspd_dump;
140 sc->pd_disk->d_unit = sc->pd_unit;
141 sc->pd_disk->d_sectorsize = secsize;
142 sc->pd_disk->d_mediasize = sectors * secsize;
143 if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) {
144 sc->pd_disk->d_fwheads = 255;
145 sc->pd_disk->d_fwsectors = 63;
147 sc->pd_disk->d_fwheads = 64;
148 sc->pd_disk->d_fwsectors = 32;
150 sc->pd_disk->d_flags = DISKFLAG_UNMAPPED_BIO;
151 disk_create(sc->pd_disk, DISK_VERSION);
153 device_printf(dev, " SYSPD volume attached\n");
159 mfi_syspd_detach(device_t dev)
161 struct mfi_system_pd *sc;
163 sc = device_get_softc(dev);
164 device_printf(dev, "Detaching syspd\n");
165 mtx_lock(&sc->pd_controller->mfi_io_lock);
166 if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) ||
167 (sc->pd_flags & MFI_DISK_FLAGS_OPEN)) &&
168 (sc->pd_controller->mfi_keep_deleted_volumes ||
169 sc->pd_controller->mfi_detaching)) {
170 mtx_unlock(&sc->pd_controller->mfi_io_lock);
171 device_printf(dev, "Cant detach syspd\n");
174 mtx_unlock(&sc->pd_controller->mfi_io_lock);
176 disk_destroy(sc->pd_disk);
177 mtx_lock(&sc->pd_controller->mfi_io_lock);
178 TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
179 mtx_unlock(&sc->pd_controller->mfi_io_lock);
180 free(sc->pd_info, M_MFIBUF);
185 mfi_syspd_open(struct disk *dp)
187 struct mfi_system_pd *sc;
191 mtx_lock(&sc->pd_controller->mfi_io_lock);
192 if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED)
195 sc->pd_flags |= MFI_DISK_FLAGS_OPEN;
198 mtx_unlock(&sc->pd_controller->mfi_io_lock);
203 mfi_syspd_close(struct disk *dp)
205 struct mfi_system_pd *sc;
208 mtx_lock(&sc->pd_controller->mfi_io_lock);
209 sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN;
210 mtx_unlock(&sc->pd_controller->mfi_io_lock);
216 mfi_syspd_disable(struct mfi_system_pd *sc)
219 device_printf(sc->pd_dev, "syspd disable \n");
220 mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
221 if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) {
222 if (sc->pd_controller->mfi_delete_busy_volumes)
224 device_printf(sc->pd_dev,
225 "Unable to delete busy syspd device\n");
228 sc->pd_flags |= MFI_DISK_FLAGS_DISABLED;
233 mfi_syspd_enable(struct mfi_system_pd *sc)
236 device_printf(sc->pd_dev, "syspd enable \n");
237 mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
238 sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED;
242 mfi_syspd_strategy(struct bio *bio)
244 struct mfi_system_pd *sc;
245 struct mfi_softc *controller;
247 sc = bio->bio_disk->d_drv1;
250 bio->bio_error = EINVAL;
251 bio->bio_flags |= BIO_ERROR;
252 bio->bio_resid = bio->bio_bcount;
257 controller = sc->pd_controller;
258 bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id;
259 /* Mark it as system PD IO */
260 bio->bio_driver2 = (void *)MFI_SYS_PD_IO;
261 mtx_lock(&controller->mfi_io_lock);
262 mfi_enqueue_bio(controller, bio);
263 mfi_startio(controller);
264 mtx_unlock(&controller->mfi_io_lock);
269 mfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset,
272 struct mfi_system_pd *sc;
273 struct mfi_softc *parent_sc;
279 parent_sc = sc->pd_controller;
282 if ((error = mfi_dump_syspd_blocks(parent_sc,
283 sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0)
286 /* mfi_sync_cache(parent_sc, sc->ld_id); */