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>
42 #include <sys/selinfo.h>
43 #include <sys/module.h>
44 #include <sys/malloc.h>
45 #include <sys/sysctl.h>
52 #include <geom/geom_disk.h>
57 #include <machine/md_var.h>
58 #include <machine/bus.h>
61 #include <dev/mfi/mfireg.h>
62 #include <dev/mfi/mfi_ioctl.h>
63 #include <dev/mfi/mfivar.h>
65 static int mfi_syspd_probe(device_t dev);
66 static int mfi_syspd_attach(device_t dev);
67 static int mfi_syspd_detach(device_t dev);
69 static disk_open_t mfi_syspd_open;
70 static disk_close_t mfi_syspd_close;
71 static disk_strategy_t mfi_syspd_strategy;
72 static dumper_t mfi_syspd_dump;
74 static devclass_t mfi_syspd_devclass;
76 static device_method_t mfi_syspd_methods[] = {
77 DEVMETHOD(device_probe, mfi_syspd_probe),
78 DEVMETHOD(device_attach, mfi_syspd_attach),
79 DEVMETHOD(device_detach, mfi_syspd_detach),
83 static driver_t mfi_syspd_driver = {
86 sizeof(struct mfi_system_pd)
89 DRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0);
92 mfi_syspd_probe(device_t dev)
98 mfi_syspd_attach(device_t dev)
100 struct mfi_system_pd *sc;
101 struct mfi_pd_info *pd_info;
102 struct mfi_system_pending *syspd_pend;
106 sc = device_get_softc(dev);
107 pd_info = device_get_ivars(dev);
109 sc->pd_id = pd_info->ref.v.device_id;
110 sc->pd_unit = device_get_unit(dev);
111 sc->pd_info = pd_info;
112 sc->pd_controller = device_get_softc(device_get_parent(dev));
115 sectors = pd_info->raw_size;
116 secsize = MFI_SECTOR_LEN;
117 mtx_lock(&sc->pd_controller->mfi_io_lock);
118 TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
119 TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh,
121 TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh,
122 syspd_pend, pd_link);
123 free(syspd_pend, M_MFIBUF);
126 mtx_unlock(&sc->pd_controller->mfi_io_lock);
127 device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n",
128 sectors / (1024 * 1024 / secsize), sectors, sc->pd_id);
129 sc->pd_disk = disk_alloc();
130 sc->pd_disk->d_drv1 = sc;
131 sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize,
132 (sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE);
133 sc->pd_disk->d_name = "mfisyspd";
134 sc->pd_disk->d_open = mfi_syspd_open;
135 sc->pd_disk->d_close = mfi_syspd_close;
136 sc->pd_disk->d_strategy = mfi_syspd_strategy;
137 sc->pd_disk->d_dump = mfi_syspd_dump;
138 sc->pd_disk->d_unit = sc->pd_unit;
139 sc->pd_disk->d_sectorsize = secsize;
140 sc->pd_disk->d_mediasize = sectors * secsize;
141 if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) {
142 sc->pd_disk->d_fwheads = 255;
143 sc->pd_disk->d_fwsectors = 63;
145 sc->pd_disk->d_fwheads = 64;
146 sc->pd_disk->d_fwsectors = 32;
148 sc->pd_disk->d_flags = DISKFLAG_UNMAPPED_BIO;
149 disk_create(sc->pd_disk, DISK_VERSION);
151 device_printf(dev, " SYSPD volume attached\n");
157 mfi_syspd_detach(device_t dev)
159 struct mfi_system_pd *sc;
161 sc = device_get_softc(dev);
162 device_printf(dev, "Detaching syspd\n");
163 mtx_lock(&sc->pd_controller->mfi_io_lock);
164 if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) ||
165 (sc->pd_flags & MFI_DISK_FLAGS_OPEN)) &&
166 (sc->pd_controller->mfi_keep_deleted_volumes ||
167 sc->pd_controller->mfi_detaching)) {
168 mtx_unlock(&sc->pd_controller->mfi_io_lock);
169 device_printf(dev, "Cant detach syspd\n");
172 mtx_unlock(&sc->pd_controller->mfi_io_lock);
174 disk_destroy(sc->pd_disk);
175 mtx_lock(&sc->pd_controller->mfi_io_lock);
176 TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
177 mtx_unlock(&sc->pd_controller->mfi_io_lock);
178 free(sc->pd_info, M_MFIBUF);
183 mfi_syspd_open(struct disk *dp)
185 struct mfi_system_pd *sc;
189 mtx_lock(&sc->pd_controller->mfi_io_lock);
190 if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED)
193 sc->pd_flags |= MFI_DISK_FLAGS_OPEN;
196 mtx_unlock(&sc->pd_controller->mfi_io_lock);
201 mfi_syspd_close(struct disk *dp)
203 struct mfi_system_pd *sc;
206 mtx_lock(&sc->pd_controller->mfi_io_lock);
207 sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN;
208 mtx_unlock(&sc->pd_controller->mfi_io_lock);
214 mfi_syspd_disable(struct mfi_system_pd *sc)
217 device_printf(sc->pd_dev, "syspd disable \n");
218 mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
219 if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) {
220 if (sc->pd_controller->mfi_delete_busy_volumes)
222 device_printf(sc->pd_dev,
223 "Unable to delete busy syspd device\n");
226 sc->pd_flags |= MFI_DISK_FLAGS_DISABLED;
231 mfi_syspd_enable(struct mfi_system_pd *sc)
234 device_printf(sc->pd_dev, "syspd enable \n");
235 mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
236 sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED;
240 mfi_syspd_strategy(struct bio *bio)
242 struct mfi_system_pd *sc;
243 struct mfi_softc *controller;
245 sc = bio->bio_disk->d_drv1;
248 bio->bio_error = EINVAL;
249 bio->bio_flags |= BIO_ERROR;
250 bio->bio_resid = bio->bio_bcount;
255 controller = sc->pd_controller;
256 bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id;
257 /* Mark it as system PD IO */
258 bio->bio_driver2 = (void *)MFI_SYS_PD_IO;
259 mtx_lock(&controller->mfi_io_lock);
260 mfi_enqueue_bio(controller, bio);
261 mfi_startio(controller);
262 mtx_unlock(&controller->mfi_io_lock);
267 mfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset,
270 struct mfi_system_pd *sc;
271 struct mfi_softc *parent_sc;
277 parent_sc = sc->pd_controller;
280 if ((error = mfi_dump_syspd_blocks(parent_sc,
281 sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0)
284 /* mfi_sync_cache(parent_sc, sc->ld_id); */