int cmd_checkfs(struct super_block *sb, struct context *c) {
struct bitmap *i_freemap, *b_freemap;
int ret;
if (c->nargs != 1) {
return -EINVAL;
}
ret = bitmap_create(BLOCK_SIZE * INODE_FREEMAP_SIZE * BITS_PER_WORD,
&i_freemap);
if (ret < 0)
return ret;
ret = bitmap_create(BLOCK_SIZE * BLOCK_FREEMAP_SIZE * BITS_PER_WORD,
&b_freemap);
if (ret < 0)
return ret;
testfs_checkfs(sb, i_freemap, b_freemap, 0);
if (!bitmap_equal(sb->inode_freemap, i_freemap)) {
printf("inode freemap is not consistent\n");
}
if (!bitmap_equal(sb->block_freemap, b_freemap)) {
printf("block freemap is not consistent\n");
}
printf("nr of allocated inodes = %d\n",
bitmap_nr_allocated(sb->inode_freemap));
printf("nr of allocated blocks = %d\n",
bitmap_nr_allocated(sb->block_freemap));
return 0;
}
static int __init check_acpi_ids(struct acpi_processor *pr_backup)
{
if (!pr_backup)
return -ENODEV;
acpi_id_present = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
if (!acpi_id_present)
return -ENOMEM;
acpi_id_cst_present = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
if (!acpi_id_cst_present) {
kfree(acpi_id_present);
return -ENOMEM;
}
acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
read_acpi_id, NULL, NULL, NULL);
acpi_get_devices("ACPI0007", read_acpi_id, NULL, NULL);
if (!bitmap_equal(acpi_id_present, acpi_ids_done, nr_acpi_bits)) {
unsigned int i;
for_each_set_bit(i, acpi_id_present, nr_acpi_bits) {
pr_backup->acpi_id = i;
pr_backup->flags.power = test_bit(i, acpi_id_cst_present);
(void)upload_pm_data(pr_backup);
}
void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque,
void (*fn)(const char *name, void *opaque))
{
S390FeatBitmap bitmap, tmp;
S390FeatGroup group;
S390Feat feat;
bitmap_copy(bitmap, features, S390_FEAT_MAX);
/* process whole groups first */
for (group = 0; group < S390_FEAT_GROUP_MAX; group++) {
const S390FeatGroupDef *def = s390_feat_group_def(group);
bitmap_and(tmp, bitmap, def->feat, S390_FEAT_MAX);
if (bitmap_equal(tmp, def->feat, S390_FEAT_MAX)) {
bitmap_andnot(bitmap, bitmap, def->feat, S390_FEAT_MAX);
fn(def->name, opaque);
}
}
/* report leftovers as separate features */
feat = find_first_bit(bitmap, S390_FEAT_MAX);
while (feat < S390_FEAT_MAX) {
fn(s390_feat_def(feat)->name, opaque);
feat = find_next_bit(bitmap, S390_FEAT_MAX, feat + 1);
};
}
static int __init check_acpi_ids(struct acpi_processor *pr_backup)
{
if (!pr_backup)
return -ENODEV;
/* All online CPUs have been processed at this stage. Now verify
* whether in fact "online CPUs" == physical CPUs.
*/
acpi_id_present = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
if (!acpi_id_present)
return -ENOMEM;
acpi_id_cst_present = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
if (!acpi_id_cst_present) {
kfree(acpi_id_present);
return -ENOMEM;
}
acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
read_acpi_id, NULL, NULL, NULL);
acpi_get_devices("ACPI0007", read_acpi_id, NULL, NULL);
if (!bitmap_equal(acpi_id_present, acpi_ids_done, nr_acpi_bits)) {
unsigned int i;
for_each_set_bit(i, acpi_id_present, nr_acpi_bits) {
pr_backup->acpi_id = i;
/* Mask out C-states if there are no _CST or PBLK */
pr_backup->flags.power = test_bit(i, acpi_id_cst_present);
(void)upload_pm_data(pr_backup);
}
static int
__dma_device_satisfies_mask(struct dma_device *device, dma_cap_mask_t *want)
{
dma_cap_mask_t has;
bitmap_and(has.bits, want->bits, device->cap_mask.bits,
DMA_TX_TYPE_END);
return bitmap_equal(want->bits, has.bits, DMA_TX_TYPE_END);
}
static bool __init
__check_eq_bitmap(const char *srcfile, unsigned int line,
const unsigned long *exp_bmap, const unsigned long *bmap,
unsigned int nbits)
{
if (!bitmap_equal(exp_bmap, bmap, nbits)) {
pr_warn("[%s:%u] bitmaps contents differ: expected \"%*pbl\", got \"%*pbl\"\n",
srcfile, line,
nbits, exp_bmap, nbits, bmap);
return false;
}
return true;
}
/* Provides a bitmap of VLANs which have learning disabled, that is, VLANs on
* which all packets are flooded. It takes ownership of the bitmap. Returns
* true if the set has changed from the previous value. */
bool
mac_learning_set_flood_vlans(struct mac_learning *ml, unsigned long *bitmap)
{
bool ret = (bitmap == NULL
? ml->flood_vlans != NULL
: (ml->flood_vlans == NULL
|| !bitmap_equal(bitmap, ml->flood_vlans, 4096)));
bitmap_free(ml->flood_vlans);
ml->flood_vlans = bitmap;
return ret;
}
static void __init test_of_node(void)
{
u32 prop_data[] = { 10, 10, 25, 3, 40, 1, 100, 100, 200, 20 };
const char *expected_str = "0-9,20-24,28-39,41-99,220-255";
char *prop_name = "msi-available-ranges";
char *node_name = "/fakenode";
struct device_node of_node;
struct property prop;
struct msi_bitmap bmp;
#define SIZE_EXPECTED 256
DECLARE_BITMAP(expected, SIZE_EXPECTED);
/* There should really be a struct device_node allocator */
memset(&of_node, 0, sizeof(of_node));
of_node_init(&of_node);
of_node.full_name = node_name;
WARN_ON(msi_bitmap_alloc(&bmp, SIZE_EXPECTED, &of_node));
/* No msi-available-ranges, so expect > 0 */
WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp) <= 0);
/* Should all still be free */
WARN_ON(bitmap_find_free_region(bmp.bitmap, SIZE_EXPECTED,
get_count_order(SIZE_EXPECTED)));
bitmap_release_region(bmp.bitmap, 0, get_count_order(SIZE_EXPECTED));
/* Now create a fake msi-available-ranges property */
/* There should really .. oh whatever */
memset(&prop, 0, sizeof(prop));
prop.name = prop_name;
prop.value = &prop_data;
prop.length = sizeof(prop_data);
of_node.properties = ∝
/* msi-available-ranges, so expect == 0 */
WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp));
/* Check we got the expected result */
WARN_ON(bitmap_parselist(expected_str, expected, SIZE_EXPECTED));
WARN_ON(!bitmap_equal(expected, bmp.bitmap, SIZE_EXPECTED));
msi_bitmap_free(&bmp);
kfree(bmp.bitmap);
}
static void get_feature_group(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
S390FeatGroup group = (S390FeatGroup) opaque;
const S390FeatGroupDef *def = s390_feat_group_def(group);
S390CPU *cpu = S390_CPU(obj);
S390FeatBitmap tmp;
bool value;
if (!cpu->model) {
error_setg(errp, "Details about the host CPU model are not available, "
"features cannot be queried.");
return;
}
/* a group is enabled if all features are enabled */
bitmap_and(tmp, cpu->model->features, def->feat, S390_FEAT_MAX);
value = bitmap_equal(tmp, def->feat, S390_FEAT_MAX);
visit_type_bool(v, name, &value, errp);
}
static int phylink_sfp_module_insert(void *upstream,
const struct sfp_eeprom_id *id)
{
struct phylink *pl = upstream;
__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
struct phylink_link_state config;
phy_interface_t iface;
int mode, ret = 0;
bool changed;
u8 port;
sfp_parse_support(pl->sfp_bus, id, support);
port = sfp_parse_port(pl->sfp_bus, id, support);
iface = sfp_parse_interface(pl->sfp_bus, id);
WARN_ON(!lockdep_rtnl_is_held());
switch (iface) {
case PHY_INTERFACE_MODE_SGMII:
mode = MLO_AN_SGMII;
break;
case PHY_INTERFACE_MODE_1000BASEX:
mode = MLO_AN_8023Z;
break;
default:
return -EINVAL;
}
memset(&config, 0, sizeof(config));
linkmode_copy(config.advertising, support);
config.interface = iface;
config.speed = SPEED_UNKNOWN;
config.duplex = DUPLEX_UNKNOWN;
config.pause = MLO_PAUSE_AN;
config.an_enabled = pl->link_config.an_enabled;
/* Ignore errors if we're expecting a PHY to attach later */
ret = phylink_validate(pl, support, &config);
if (ret) {
netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n",
phylink_an_mode_str(mode), phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support, ret);
return ret;
}
netdev_dbg(pl->netdev, "requesting link mode %s/%s with support %*pb\n",
phylink_an_mode_str(mode), phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support);
if (mode == MLO_AN_8023Z && pl->phydev)
return -EINVAL;
changed = !bitmap_equal(pl->supported, support,
__ETHTOOL_LINK_MODE_MASK_NBITS);
if (changed) {
linkmode_copy(pl->supported, support);
linkmode_copy(pl->link_config.advertising, config.advertising);
}
if (pl->link_an_mode != mode ||
pl->link_config.interface != config.interface) {
pl->link_config.interface = config.interface;
pl->link_an_mode = mode;
changed = true;
netdev_info(pl->netdev, "switched to %s/%s link mode\n",
phylink_an_mode_str(mode),
phy_modes(config.interface));
}
pl->link_port = port;
if (changed && !test_bit(PHYLINK_DISABLE_STOPPED,
&pl->phylink_disable_state))
phylink_mac_config(pl, &pl->link_config);
return ret;
}
/* Returns true if 'a' and 'b' are the same: either both null or both the same
* 4096-bit bitmap.
*
* (We assume that a nonnull bitmap is not all 0-bits.) */
bool
vlan_bitmap_equal(const unsigned long *a, const unsigned long *b)
{
return (!a && !b) || (a && b && bitmap_equal(a, b, 4096));
}
CpuModelCompareInfo *arch_query_cpu_model_comparison(CpuModelInfo *infoa,
CpuModelInfo *infob,
Error **errp)
{
CpuModelCompareResult feat_result, gen_result;
CpuModelCompareInfo *compare_info;
S390FeatBitmap missing, added;
S390CPUModel modela, modelb;
/* convert both models to our internal representation */
cpu_model_from_info(&modela, infoa, errp);
if (*errp) {
return NULL;
}
cpu_model_from_info(&modelb, infob, errp);
if (*errp) {
return NULL;
}
compare_info = g_malloc0(sizeof(*compare_info));
/* check the cpu generation and ga level */
if (modela.def->gen == modelb.def->gen) {
if (modela.def->ec_ga == modelb.def->ec_ga) {
/* ec and corresponding bc are identical */
gen_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL;
} else if (modela.def->ec_ga < modelb.def->ec_ga) {
gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET;
} else {
gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET;
}
} else if (modela.def->gen < modelb.def->gen) {
gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET;
} else {
gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET;
}
if (gen_result != CPU_MODEL_COMPARE_RESULT_IDENTICAL) {
/* both models cannot be made identical */
list_add_feat("type", &compare_info->responsible_properties);
}
/* check the feature set */
if (bitmap_equal(modela.features, modelb.features, S390_FEAT_MAX)) {
feat_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL;
} else {
bitmap_andnot(missing, modela.features, modelb.features, S390_FEAT_MAX);
s390_feat_bitmap_to_ascii(missing,
&compare_info->responsible_properties,
list_add_feat);
bitmap_andnot(added, modelb.features, modela.features, S390_FEAT_MAX);
s390_feat_bitmap_to_ascii(added, &compare_info->responsible_properties,
list_add_feat);
if (bitmap_empty(missing, S390_FEAT_MAX)) {
feat_result = CPU_MODEL_COMPARE_RESULT_SUBSET;
} else if (bitmap_empty(added, S390_FEAT_MAX)) {
feat_result = CPU_MODEL_COMPARE_RESULT_SUPERSET;
} else {
feat_result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE;
}
}
/* combine the results */
if (gen_result == feat_result) {
compare_info->result = gen_result;
} else if (feat_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) {
compare_info->result = gen_result;
} else if (gen_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) {
compare_info->result = feat_result;
} else {
compare_info->result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE;
}
return compare_info;
}
static int phylink_sfp_module_insert(void *upstream,
const struct sfp_eeprom_id *id)
{
struct phylink *pl = upstream;
__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
struct phylink_link_state config;
phy_interface_t iface;
int ret = 0;
bool changed;
u8 port;
ASSERT_RTNL();
sfp_parse_support(pl->sfp_bus, id, support);
port = sfp_parse_port(pl->sfp_bus, id, support);
memset(&config, 0, sizeof(config));
linkmode_copy(config.advertising, support);
config.interface = PHY_INTERFACE_MODE_NA;
config.speed = SPEED_UNKNOWN;
config.duplex = DUPLEX_UNKNOWN;
config.pause = MLO_PAUSE_AN;
config.an_enabled = pl->link_config.an_enabled;
/* Ignore errors if we're expecting a PHY to attach later */
ret = phylink_validate(pl, support, &config);
if (ret) {
netdev_err(pl->netdev, "validation with support %*pb failed: %d\n",
__ETHTOOL_LINK_MODE_MASK_NBITS, support, ret);
return ret;
}
iface = sfp_select_interface(pl->sfp_bus, id, config.advertising);
if (iface == PHY_INTERFACE_MODE_NA) {
netdev_err(pl->netdev,
"selection of interface failed, advertisement %*pb\n",
__ETHTOOL_LINK_MODE_MASK_NBITS, config.advertising);
return -EINVAL;
}
config.interface = iface;
ret = phylink_validate(pl, support, &config);
if (ret) {
netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n",
phylink_an_mode_str(MLO_AN_INBAND),
phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support, ret);
return ret;
}
netdev_dbg(pl->netdev, "requesting link mode %s/%s with support %*pb\n",
phylink_an_mode_str(MLO_AN_INBAND),
phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support);
if (phy_interface_mode_is_8023z(iface) && pl->phydev)
return -EINVAL;
changed = !bitmap_equal(pl->supported, support,
__ETHTOOL_LINK_MODE_MASK_NBITS);
if (changed) {
linkmode_copy(pl->supported, support);
linkmode_copy(pl->link_config.advertising, config.advertising);
}
if (pl->link_an_mode != MLO_AN_INBAND ||
pl->link_config.interface != config.interface) {
pl->link_config.interface = config.interface;
pl->link_an_mode = MLO_AN_INBAND;
changed = true;
netdev_info(pl->netdev, "switched to %s/%s link mode\n",
phylink_an_mode_str(MLO_AN_INBAND),
phy_modes(config.interface));
}
pl->link_port = port;
if (changed && !test_bit(PHYLINK_DISABLE_STOPPED,
&pl->phylink_disable_state))
phylink_mac_config(pl, &pl->link_config);
return ret;
}
