C++ (Cpp) mbox_store_ldref Examples

Example #1

File: mfi_volume.c Project: hurricup/freebsd_mfi

static int
mfi_ld_set_props(int fd, struct mfi_ld_props *props)
{
	uint8_t mbox[4];

	mbox_store_ldref(mbox, &props->ld);
	return (mfi_dcmd_command(fd, MFI_DCMD_LD_SET_PROP, props,
	    sizeof(struct mfi_ld_props), mbox, 4, NULL));
}

Example #2

static int
delete_volume(int ac, char **av)
{
	struct mfi_ld_info info;
	int error, fd;
	uint8_t target_id, mbox[4];

	/*
	 * Backwards compat.  Map 'delete volume' to 'delete' and
	 * 'delete spare' to 'remove'.
	 */
	if (ac > 1) {
		if (strcmp(av[1], "volume") == 0) {
			av++;
			ac--;
		} else if (strcmp(av[1], "spare") == 0) {
			av++;
			ac--;
			return (remove_spare(ac, av));
		}
	}

	if (ac != 2) {
		warnx("delete volume: volume required");
		return (EINVAL);
	}

	fd = mfi_open(mfi_unit);
	if (fd < 0) {
		error = errno;
		warn("mfi_open");
		return (error);
	}

	if (!mfi_reconfig_supported()) {
		warnx("The current mfi(4) driver does not support "
		    "configuration changes.");
		close(fd);
		return (EOPNOTSUPP);
	}

	if (mfi_lookup_volume(fd, av[1], &target_id) < 0) {
		error = errno;
		warn("Invalid volume %s", av[1]);
		close(fd);
		return (error);
	}

	if (mfi_ld_get_info(fd, target_id, &info, NULL) < 0) {
		error = errno;
		warn("Failed to get info for volume %d", target_id);
		close(fd);
		return (error);
	}

	if (mfi_volume_busy(fd, target_id)) {
		warnx("Volume %s is busy and cannot be deleted",
		    mfi_volume_name(fd, target_id));
		close(fd);
		return (EBUSY);
	}

	mbox_store_ldref(mbox, &info.ld_config.properties.ld);
	if (mfi_dcmd_command(fd, MFI_DCMD_LD_DELETE, NULL, 0, mbox,
	    sizeof(mbox), NULL) < 0) {
		error = errno;
		warn("Failed to delete volume");
		close(fd);
		return (error);
	}

	close(fd);

	return (0);
}