git: 53df7e58cca7 - main - geom_redboot(4): Garbage collect disconnected driver
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Date: Sun, 14 Jan 2024 21:22:40 UTC
The branch main has been updated by marius:
URL: https://cgit.FreeBSD.org/src/commit/?id=53df7e58cca7e6726b44f447f10ddc3451cfa851
commit 53df7e58cca7e6726b44f447f10ddc3451cfa851
Author: Marius Strobl <marius@FreeBSD.org>
AuthorDate: 2024-01-14 08:39:56 +0000
Commit: Marius Strobl <marius@FreeBSD.org>
CommitDate: 2024-01-14 21:22:21 +0000
geom_redboot(4): Garbage collect disconnected driver
The last MIPS user has been removed in c09981f1 2 years ago, the last
ARM one in ff945277 even 5.5 years ago.
---
sys/conf/files | 1 -
sys/geom/geom_redboot.c | 342 ------------------------------------------------
2 files changed, 343 deletions(-)
diff --git a/sys/conf/files b/sys/conf/files
index 1069079b162a..484ec90beb00 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -3618,7 +3618,6 @@ geom/geom_event.c standard
geom/geom_flashmap.c optional fdt cfi | fdt mx25l | mmcsd | fdt n25q | fdt at45d
geom/geom_io.c standard
geom/geom_kern.c standard
-geom/geom_redboot.c optional geom_redboot
geom/geom_slice.c standard
geom/geom_subr.c standard
geom/geom_vfs.c standard
diff --git a/sys/geom/geom_redboot.c b/sys/geom/geom_redboot.c
deleted file mode 100644
index aeb8f1e4e525..000000000000
--- a/sys/geom/geom_redboot.c
+++ /dev/null
@@ -1,342 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2009 Sam Leffler, Errno Consulting
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
- * redistribution must be conditioned upon including a substantially
- * similar Disclaimer requirement for further binary redistribution.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <sys/param.h>
-#include <sys/errno.h>
-#include <sys/endian.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/fcntl.h>
-#include <sys/malloc.h>
-#include <sys/bio.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/bus.h>
-
-#include <sys/sbuf.h>
-#include <geom/geom.h>
-#include <geom/geom_slice.h>
-
-#define REDBOOT_CLASS_NAME "REDBOOT"
-
-struct fis_image_desc {
- uint8_t name[16]; /* null-terminated name */
- uint32_t offset; /* offset in flash */
- uint32_t addr; /* address in memory */
- uint32_t size; /* image size in bytes */
- uint32_t entry; /* offset in image for entry point */
- uint32_t dsize; /* data size in bytes */
- uint8_t pad[256-(16+7*sizeof(uint32_t)+sizeof(void*))];
- struct fis_image_desc *next; /* linked list (in memory) */
- uint32_t dsum; /* descriptor checksum */
- uint32_t fsum; /* checksum over image data */
-};
-
-#define FISDIR_NAME "FIS directory"
-#define REDBCFG_NAME "RedBoot config"
-#define REDBOOT_NAME "RedBoot"
-
-#define REDBOOT_MAXSLICE 64
-#define REDBOOT_MAXOFF \
- (REDBOOT_MAXSLICE*sizeof(struct fis_image_desc))
-
-struct g_redboot_softc {
- uint32_t entry[REDBOOT_MAXSLICE];
- uint32_t dsize[REDBOOT_MAXSLICE];
- uint8_t readonly[REDBOOT_MAXSLICE];
- g_access_t *parent_access;
-};
-
-static void
-g_redboot_print(int i, struct fis_image_desc *fd)
-{
-
- printf("[%2d] \"%-15.15s\" %08x:%08x", i, fd->name,
- fd->offset, fd->size);
- printf(" addr %08x entry %08x\n", fd->addr, fd->entry);
- printf(" dsize 0x%x dsum 0x%x fsum 0x%x\n", fd->dsize,
- fd->dsum, fd->fsum);
-}
-
-static int
-g_redboot_ioctl(struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
-{
- return (ENOIOCTL);
-}
-
-static int
-g_redboot_access(struct g_provider *pp, int dread, int dwrite, int dexcl)
-{
- struct g_geom *gp = pp->geom;
- struct g_slicer *gsp = gp->softc;
- struct g_redboot_softc *sc = gsp->softc;
-
- if (dwrite > 0 && sc->readonly[pp->index])
- return (EPERM);
- return (sc->parent_access(pp, dread, dwrite, dexcl));
-}
-
-static int
-g_redboot_start(struct bio *bp)
-{
- struct g_provider *pp;
- struct g_geom *gp;
- struct g_redboot_softc *sc;
- struct g_slicer *gsp;
- int idx;
-
- pp = bp->bio_to;
- idx = pp->index;
- gp = pp->geom;
- gsp = gp->softc;
- sc = gsp->softc;
- if (bp->bio_cmd == BIO_GETATTR) {
- if (g_handleattr_int(bp, REDBOOT_CLASS_NAME "::entry",
- sc->entry[idx]))
- return (1);
- if (g_handleattr_int(bp, REDBOOT_CLASS_NAME "::dsize",
- sc->dsize[idx]))
- return (1);
- }
-
- return (0);
-}
-
-static void
-g_redboot_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
- struct g_consumer *cp __unused, struct g_provider *pp)
-{
- struct g_redboot_softc *sc;
- struct g_slicer *gsp;
-
- gsp = gp->softc;
- sc = gsp->softc;
- g_slice_dumpconf(sb, indent, gp, cp, pp);
- if (pp != NULL) {
- if (indent == NULL) {
- sbuf_printf(sb, " entry %d", sc->entry[pp->index]);
- sbuf_printf(sb, " dsize %d", sc->dsize[pp->index]);
- } else {
- sbuf_printf(sb, "%s<entry>%d</entry>\n", indent,
- sc->entry[pp->index]);
- sbuf_printf(sb, "%s<dsize>%d</dsize>\n", indent,
- sc->dsize[pp->index]);
- }
- }
-}
-
-#include <sys/ctype.h>
-
-static int
-nameok(const char name[16])
-{
- int i;
-
- /* descriptor names are null-terminated printable ascii */
- for (i = 0; i < 15; i++)
- if (!isprint(name[i]))
- break;
- return (name[i] == '\0');
-}
-
-static struct fis_image_desc *
-parse_fis_directory(u_char *buf, size_t bufsize, off_t offset, uint32_t offmask)
-{
-#define match(a,b) (bcmp(a, b, sizeof(b)-1) == 0)
- struct fis_image_desc *fd, *efd;
- struct fis_image_desc *fisdir, *redbcfg;
- struct fis_image_desc *head, **tail;
- int i;
-
- fd = (struct fis_image_desc *)buf;
- efd = fd + (bufsize / sizeof(struct fis_image_desc));
-#if 0
- /*
- * Find the start of the FIS table.
- */
- while (fd < efd && fd->name[0] != 0xff)
- fd++;
- if (fd == efd)
- return (NULL);
- if (bootverbose)
- printf("RedBoot FIS table starts at 0x%jx\n",
- offset + fd - (struct fis_image_desc *) buf);
-#endif
- /*
- * Scan forward collecting entries in a list.
- */
- fisdir = redbcfg = NULL;
- *(tail = &head) = NULL;
- for (i = 0; fd < efd; i++, fd++) {
- if (fd->name[0] == 0xff)
- continue;
- if (match(fd->name, FISDIR_NAME))
- fisdir = fd;
- else if (match(fd->name, REDBCFG_NAME))
- redbcfg = fd;
- if (nameok(fd->name)) {
- /*
- * NB: flash address includes platform mapping;
- * strip it so we have only a flash offset.
- */
- fd->offset &= offmask;
- if (bootverbose)
- g_redboot_print(i, fd);
- *tail = fd;
- *(tail = &fd->next) = NULL;
- }
- }
- if (fisdir == NULL) {
- if (bootverbose)
- printf("No RedBoot FIS table located at %lu\n",
- (long) offset);
- return (NULL);
- }
- if (redbcfg != NULL &&
- fisdir->offset + fisdir->size == redbcfg->offset) {
- /*
- * Merged FIS/RedBoot config directory.
- */
- if (bootverbose)
- printf("FIS/RedBoot merged at 0x%jx (not yet)\n",
- offset + fisdir->offset);
- /* XXX */
- }
- return head;
-#undef match
-}
-
-static struct g_geom *
-g_redboot_taste(struct g_class *mp, struct g_provider *pp, int insist)
-{
- struct g_geom *gp;
- struct g_consumer *cp;
- struct g_redboot_softc *sc;
- int error, sectorsize, i;
- struct fis_image_desc *fd, *head;
- uint32_t offmask;
- off_t blksize; /* NB: flash block size stored as stripesize */
- u_char *buf;
- off_t offset;
- const char *value;
- char *op;
-
- offset = 0;
- if (resource_string_value("redboot", 0, "fisoffset", &value) == 0) {
- offset = strtouq(value, &op, 0);
- if (*op != '\0') {
- offset = 0;
- }
- }
-
- g_trace(G_T_TOPOLOGY, "redboot_taste(%s,%s)", mp->name, pp->name);
- g_topology_assert();
- if (!strcmp(pp->geom->class->name, REDBOOT_CLASS_NAME))
- return (NULL);
- /* XXX only taste flash providers */
- if (strncmp(pp->name, "cfi", 3) &&
- strncmp(pp->name, "flash/spi", 9))
- return (NULL);
- gp = g_slice_new(mp, REDBOOT_MAXSLICE, pp, &cp, &sc, sizeof(*sc),
- g_redboot_start);
- if (gp == NULL)
- return (NULL);
- /* interpose our access method */
- sc->parent_access = gp->access;
- gp->access = g_redboot_access;
-
- sectorsize = cp->provider->sectorsize;
- blksize = cp->provider->stripesize;
- if (powerof2(cp->provider->mediasize))
- offmask = cp->provider->mediasize-1;
- else
- offmask = 0xffffffff; /* XXX */
- if (bootverbose)
- printf("%s: mediasize %ld secsize %d blksize %ju offmask 0x%x\n",
- __func__, (long) cp->provider->mediasize, sectorsize,
- (uintmax_t)blksize, offmask);
- if (sectorsize < sizeof(struct fis_image_desc) ||
- (sectorsize % sizeof(struct fis_image_desc)))
- return (NULL);
- g_topology_unlock();
- head = NULL;
- if(offset == 0)
- offset = cp->provider->mediasize - blksize;
-again:
- buf = g_read_data(cp, offset, blksize, NULL);
- if (buf != NULL)
- head = parse_fis_directory(buf, blksize, offset, offmask);
- if (head == NULL && offset != 0) {
- g_free(buf);
- offset = 0; /* check the front */
- goto again;
- }
- g_topology_lock();
- if (head == NULL) {
- g_free(buf);
- return NULL;
- }
- /*
- * Craft a slice for each entry.
- */
- for (fd = head, i = 0; fd != NULL; fd = fd->next) {
- if (fd->name[0] == '\0')
- continue;
- error = g_slice_config(gp, i, G_SLICE_CONFIG_SET,
- fd->offset, fd->size, sectorsize, "redboot/%s", fd->name);
- if (error)
- printf("%s: g_slice_config returns %d for \"%s\"\n",
- __func__, error, fd->name);
- sc->entry[i] = fd->entry;
- sc->dsize[i] = fd->dsize;
- /* disallow writing hard-to-recover entries */
- sc->readonly[i] = (strcmp(fd->name, FISDIR_NAME) == 0) ||
- (strcmp(fd->name, REDBOOT_NAME) == 0);
- i++;
- }
- g_free(buf);
- g_access(cp, -1, 0, 0);
- if (LIST_EMPTY(&gp->provider)) {
- g_slice_spoiled(cp);
- return (NULL);
- }
- return (gp);
-}
-
-static struct g_class g_redboot_class = {
- .name = REDBOOT_CLASS_NAME,
- .version = G_VERSION,
- .taste = g_redboot_taste,
- .dumpconf = g_redboot_dumpconf,
- .ioctl = g_redboot_ioctl,
-};
-DECLARE_GEOM_CLASS(g_redboot_class, g_redboot);
-MODULE_VERSION(geom_redboot, 0);