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for-5.5/drivers-20191121

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Merge tag 'for-5.5/drivers-20191121' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "Here are the main block driver updates for 5.5. Nothing major in here,
  mostly just fixes. This contains:

   - a set of bcache changes via Coly

   - MD changes from Song

   - loop unmap write-zeroes fix (Darrick)

   - spelling fixes (Geert)

   - zoned additions cleanups to null_blk/dm (Ajay)

   - allow null_blk online submit queue changes (Bart)

   - NVMe changes via Keith, nothing major here either"

* tag 'for-5.5/drivers-20191121' of git://git.kernel.dk/linux-block: (56 commits)
  Revert "bcache: fix fifo index swapping condition in journal_pin_cmp()"
  drivers/md/raid5-ppl.c: use the new spelling of RWH_WRITE_LIFE_NOT_SET
  drivers/md/raid5.c: use the new spelling of RWH_WRITE_LIFE_NOT_SET
  bcache: don't export symbols
  bcache: remove the extra cflags for request.o
  bcache: at least try to shrink 1 node in bch_mca_scan()
  bcache: add idle_max_writeback_rate sysfs interface
  bcache: add code comments in bch_btree_leaf_dirty()
  bcache: fix deadlock in bcache_allocator
  bcache: add code comment bch_keylist_pop() and bch_keylist_pop_front()
  bcache: deleted code comments for dead code in bch_data_insert_keys()
  bcache: add more accurate error messages in read_super()
  bcache: fix static checker warning in bcache_device_free()
  bcache: fix a lost wake-up problem caused by mca_cannibalize_lock
  bcache: fix fifo index swapping condition in journal_pin_cmp()
  md/raid10: prevent access of uninitialized resync_pages offset
  md: avoid invalid memory access for array sb->dev_roles
  md/raid1: avoid soft lockup under high load
  null_blk: add zone open, close, and finish support
  dm: add zone open, close and finish support
  ...
This commit is contained in:
Linus Torvalds 2019-11-25 11:15:41 -08:00
commit 2d53943090
48 changed files with 783 additions and 400 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/block/loop.c
View File

@ -417,18 +417,20 @@ out_free_page:
return ret;
}
static int lo_discard(struct loop_device *lo, struct request *rq, loff_t pos)
static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
int mode)
{
/*
* We use punch hole to reclaim the free space used by the
* image a.k.a. discard. However we do not support discard if
* encryption is enabled, because it may give an attacker
* useful information.
* We use fallocate to manipulate the space mappings used by the image
* a.k.a. discard/zerorange. However we do not support this if
* encryption is enabled, because it may give an attacker useful
* information.
*/
struct file *file = lo->lo_backing_file;
int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE;
int ret;
mode |= FALLOC_FL_KEEP_SIZE;
if ((!file->f_op->fallocate) || lo->lo_encrypt_key_size) {
ret = -EOPNOTSUPP;
goto out;
@ -596,9 +598,17 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
switch (req_op(rq)) {
case REQ_OP_FLUSH:
return lo_req_flush(lo, rq);
case REQ_OP_DISCARD:
case REQ_OP_WRITE_ZEROES:
return lo_discard(lo, rq, pos);
/*
* If the caller doesn't want deallocation, call zeroout to
* write zeroes the range. Otherwise, punch them out.
*/
return lo_fallocate(lo, rq, pos,
(rq->cmd_flags & REQ_NOUNMAP) ?
FALLOC_FL_ZERO_RANGE :
FALLOC_FL_PUNCH_HOLE);
case REQ_OP_DISCARD:
return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
case REQ_OP_WRITE:
if (lo->transfer)
return lo_write_transfer(lo, rq, pos);

2
drivers/block/mtip32xx/mtip32xx.c
View File

@ -129,7 +129,7 @@ struct mtip_compat_ide_task_request_s {
/*
* This function check_for_surprise_removal is called
* while card is removed from the system and it will
* read the vendor id from the configration space
* read the vendor id from the configuration space
*
* @pdev Pointer to the pci_dev structure.
*

8
drivers/block/null_blk.h
View File

@ -96,6 +96,8 @@ int null_zone_report(struct gendisk *disk, sector_t sector,
blk_status_t null_handle_zoned(struct nullb_cmd *cmd,
enum req_opf op, sector_t sector,
sector_t nr_sectors);
size_t null_zone_valid_read_len(struct nullb *nullb,
sector_t sector, unsigned int len);
#else
static inline int null_zone_init(struct nullb_device *dev)
{
@ -115,5 +117,11 @@ static inline blk_status_t null_handle_zoned(struct nullb_cmd *cmd,
{
return BLK_STS_NOTSUPP;
}
static inline size_t null_zone_valid_read_len(struct nullb *nullb,
sector_t sector,
unsigned int len)
{
return len;
}
#endif /* CONFIG_BLK_DEV_ZONED */
#endif /* __NULL_BLK_H */

104
drivers/block/null_blk_main.c
View File

@ -227,7 +227,7 @@ static ssize_t nullb_device_uint_attr_store(unsigned int *val,
int result;
result = kstrtouint(page, 0, &tmp);
if (result)
if (result < 0)
return result;
*val = tmp;
@ -241,7 +241,7 @@ static ssize_t nullb_device_ulong_attr_store(unsigned long *val,
unsigned long tmp;
result = kstrtoul(page, 0, &tmp);
if (result)
if (result < 0)
return result;
*val = tmp;
@ -255,7 +255,7 @@ static ssize_t nullb_device_bool_attr_store(bool *val, const char *page,
int result;
result = kstrtobool(page, &tmp);
if (result)
if (result < 0)
return result;
*val = tmp;
@ -263,7 +263,7 @@ static ssize_t nullb_device_bool_attr_store(bool *val, const char *page,
}
/* The following macro should only be used with TYPE = {uint, ulong, bool}. */
#define NULLB_DEVICE_ATTR(NAME, TYPE) \
#define NULLB_DEVICE_ATTR(NAME, TYPE, APPLY) \
static ssize_t \
nullb_device_##NAME##_show(struct config_item *item, char *page) \
{ \
@ -274,31 +274,57 @@ static ssize_t \
nullb_device_##NAME##_store(struct config_item *item, const char *page, \
size_t count) \
{ \
if (test_bit(NULLB_DEV_FL_CONFIGURED, &to_nullb_device(item)->flags)) \
return -EBUSY; \
return nullb_device_##TYPE##_attr_store( \
&to_nullb_device(item)->NAME, page, count); \
int (*apply_fn)(struct nullb_device *dev, TYPE new_value) = APPLY; \
struct nullb_device *dev = to_nullb_device(item); \
TYPE new_value; \
int ret; \
\
ret = nullb_device_##TYPE##_attr_store(&new_value, page, count); \
if (ret < 0) \
return ret; \
if (apply_fn) \
ret = apply_fn(dev, new_value); \
else if (test_bit(NULLB_DEV_FL_CONFIGURED, &dev->flags)) \
ret = -EBUSY; \
if (ret < 0) \
return ret; \
dev->NAME = new_value; \
return count; \
} \
CONFIGFS_ATTR(nullb_device_, NAME);
NULLB_DEVICE_ATTR(size, ulong);
NULLB_DEVICE_ATTR(completion_nsec, ulong);
NULLB_DEVICE_ATTR(submit_queues, uint);
NULLB_DEVICE_ATTR(home_node, uint);
NULLB_DEVICE_ATTR(queue_mode, uint);
NULLB_DEVICE_ATTR(blocksize, uint);
NULLB_DEVICE_ATTR(irqmode, uint);
NULLB_DEVICE_ATTR(hw_queue_depth, uint);
NULLB_DEVICE_ATTR(index, uint);
NULLB_DEVICE_ATTR(blocking, bool);
NULLB_DEVICE_ATTR(use_per_node_hctx, bool);
NULLB_DEVICE_ATTR(memory_backed, bool);
NULLB_DEVICE_ATTR(discard, bool);
NULLB_DEVICE_ATTR(mbps, uint);
NULLB_DEVICE_ATTR(cache_size, ulong);
NULLB_DEVICE_ATTR(zoned, bool);
NULLB_DEVICE_ATTR(zone_size, ulong);
NULLB_DEVICE_ATTR(zone_nr_conv, uint);
static int nullb_apply_submit_queues(struct nullb_device *dev,
unsigned int submit_queues)
{
struct nullb *nullb = dev->nullb;
struct blk_mq_tag_set *set;
if (!nullb)
return 0;
set = nullb->tag_set;
blk_mq_update_nr_hw_queues(set, submit_queues);
return set->nr_hw_queues == submit_queues ? 0 : -ENOMEM;
}
NULLB_DEVICE_ATTR(size, ulong, NULL);
NULLB_DEVICE_ATTR(completion_nsec, ulong, NULL);
NULLB_DEVICE_ATTR(submit_queues, uint, nullb_apply_submit_queues);
NULLB_DEVICE_ATTR(home_node, uint, NULL);
NULLB_DEVICE_ATTR(queue_mode, uint, NULL);
NULLB_DEVICE_ATTR(blocksize, uint, NULL);
NULLB_DEVICE_ATTR(irqmode, uint, NULL);
NULLB_DEVICE_ATTR(hw_queue_depth, uint, NULL);
NULLB_DEVICE_ATTR(index, uint, NULL);
NULLB_DEVICE_ATTR(blocking, bool, NULL);
NULLB_DEVICE_ATTR(use_per_node_hctx, bool, NULL);
NULLB_DEVICE_ATTR(memory_backed, bool, NULL);
NULLB_DEVICE_ATTR(discard, bool, NULL);
NULLB_DEVICE_ATTR(mbps, uint, NULL);
NULLB_DEVICE_ATTR(cache_size, ulong, NULL);
NULLB_DEVICE_ATTR(zoned, bool, NULL);
NULLB_DEVICE_ATTR(zone_size, ulong, NULL);
NULLB_DEVICE_ATTR(zone_nr_conv, uint, NULL);
static ssize_t nullb_device_power_show(struct config_item *item, char *page)
{
@ -996,6 +1022,16 @@ next:
return 0;
}
static void nullb_fill_pattern(struct nullb *nullb, struct page *page,
unsigned int len, unsigned int off)
{
void *dst;
dst = kmap_atomic(page);
memset(dst + off, 0xFF, len);
kunmap_atomic(dst);
}
static void null_handle_discard(struct nullb *nullb, sector_t sector, size_t n)
{
size_t temp;
@ -1036,10 +1072,24 @@ static int null_transfer(struct nullb *nullb, struct page *page,
unsigned int len, unsigned int off, bool is_write, sector_t sector,
bool is_fua)
{
struct nullb_device *dev = nullb->dev;
unsigned int valid_len = len;
int err = 0;
if (!is_write) {
err = copy_from_nullb(nullb, page, off, sector, len);
if (dev->zoned)
valid_len = null_zone_valid_read_len(nullb,
sector, len);
if (valid_len) {
err = copy_from_nullb(nullb, page, off,
sector, valid_len);
off += valid_len;
len -= valid_len;
}
if (len)
nullb_fill_pattern(nullb, page, len, off);
flush_dcache_page(page);
} else {
flush_dcache_page(page);

54
drivers/block/null_blk_zoned.c
View File

@ -84,6 +84,24 @@ int null_zone_report(struct gendisk *disk, sector_t sector,
return 0;
}
size_t null_zone_valid_read_len(struct nullb *nullb,
sector_t sector, unsigned int len)
{
struct nullb_device *dev = nullb->dev;
struct blk_zone *zone = &dev->zones[null_zone_no(dev, sector)];
unsigned int nr_sectors = len >> SECTOR_SHIFT;
/* Read must be below the write pointer position */
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL ||
sector + nr_sectors <= zone->wp)
return len;
if (sector > zone->wp)
return 0;
return (zone->wp - sector) << SECTOR_SHIFT;
}
static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector,
unsigned int nr_sectors)
{
@ -118,14 +136,14 @@ static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector,
return BLK_STS_OK;
}
static blk_status_t null_zone_reset(struct nullb_cmd *cmd, sector_t sector)
static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
sector_t sector)
{
struct nullb_device *dev = cmd->nq->dev;
unsigned int zno = null_zone_no(dev, sector);
struct blk_zone *zone = &dev->zones[zno];
struct blk_zone *zone = &dev->zones[null_zone_no(dev, sector)];
size_t i;
switch (req_op(cmd->rq)) {
switch (op) {
case REQ_OP_ZONE_RESET_ALL:
for (i = 0; i < dev->nr_zones; i++) {
if (zone[i].type == BLK_ZONE_TYPE_CONVENTIONAL)
@ -141,6 +159,29 @@ static blk_status_t null_zone_reset(struct nullb_cmd *cmd, sector_t sector)
zone->cond = BLK_ZONE_COND_EMPTY;
zone->wp = zone->start;
break;
case REQ_OP_ZONE_OPEN:
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
return BLK_STS_IOERR;
if (zone->cond == BLK_ZONE_COND_FULL)
return BLK_STS_IOERR;
zone->cond = BLK_ZONE_COND_EXP_OPEN;
break;
case REQ_OP_ZONE_CLOSE:
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
return BLK_STS_IOERR;
if (zone->cond == BLK_ZONE_COND_FULL)
return BLK_STS_IOERR;
zone->cond = BLK_ZONE_COND_CLOSED;
break;
case REQ_OP_ZONE_FINISH:
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
return BLK_STS_IOERR;
zone->cond = BLK_ZONE_COND_FULL;
zone->wp = zone->start + zone->len;
break;
default:
return BLK_STS_NOTSUPP;
}
@ -155,7 +196,10 @@ blk_status_t null_handle_zoned(struct nullb_cmd *cmd, enum req_opf op,
return null_zone_write(cmd, sector, nr_sectors);
case REQ_OP_ZONE_RESET:
case REQ_OP_ZONE_RESET_ALL:
return null_zone_reset(cmd, sector);
case REQ_OP_ZONE_OPEN:
case REQ_OP_ZONE_CLOSE:
case REQ_OP_ZONE_FINISH:
return null_zone_mgmt(cmd, op, sector);
default:
return BLK_STS_OK;
}

2
drivers/md/bcache/Makefile
View File

@ -5,5 +5,3 @@ obj-$(CONFIG_BCACHE) += bcache.o
bcache-y := alloc.o bset.o btree.o closure.o debug.o extents.o\
io.o journal.o movinggc.o request.o stats.o super.o sysfs.o trace.o\
util.o writeback.o
CFLAGS_request.o += -Iblock

5
drivers/md/bcache/alloc.c
View File

@ -377,7 +377,10 @@ retry_invalidate:
if (!fifo_full(&ca->free_inc))
goto retry_invalidate;
bch_prio_write(ca);
if (bch_prio_write(ca, false) < 0) {
ca->invalidate_needs_gc = 1;
wake_up_gc(ca->set);
}
}
}
out:

4
drivers/md/bcache/bcache.h
View File

@ -582,6 +582,7 @@ struct cache_set {
*/
wait_queue_head_t btree_cache_wait;
struct task_struct *btree_cache_alloc_lock;
spinlock_t btree_cannibalize_lock;
/*
* When we free a btree node, we increment the gen of the bucket the
@ -723,6 +724,7 @@ struct cache_set {
unsigned int gc_always_rewrite:1;
unsigned int shrinker_disabled:1;
unsigned int copy_gc_enabled:1;
unsigned int idle_max_writeback_rate_enabled:1;
#define BUCKET_HASH_BITS 12
struct hlist_head bucket_hash[1 << BUCKET_HASH_BITS];
@ -977,7 +979,7 @@ bool bch_cached_dev_error(struct cached_dev *dc);
__printf(2, 3)
bool bch_cache_set_error(struct cache_set *c, const char *fmt, ...);
void bch_prio_write(struct cache *ca);
int bch_prio_write(struct cache *ca, bool wait);
void bch_write_bdev_super(struct cached_dev *dc, struct closure *parent);
extern struct workqueue_struct *bcache_wq;

17
drivers/md/bcache/bset.c
View File

@ -155,6 +155,7 @@ int __bch_keylist_realloc(struct keylist *l, unsigned int u64s)
return 0;
}
/* Pop the top key of keylist by pointing l->top to its previous key */
struct bkey *bch_keylist_pop(struct keylist *l)
{
struct bkey *k = l->keys;
@ -168,6 +169,7 @@ struct bkey *bch_keylist_pop(struct keylist *l)
return l->top = k;
}
/* Pop the bottom key of keylist and update l->top_p */
void bch_keylist_pop_front(struct keylist *l)
{
l->top_p -= bkey_u64s(l->keys);
@ -309,7 +311,6 @@ void bch_btree_keys_free(struct btree_keys *b)
t->tree = NULL;
t->data = NULL;
}
EXPORT_SYMBOL(bch_btree_keys_free);
int bch_btree_keys_alloc(struct btree_keys *b,
unsigned int page_order,
@ -342,7 +343,6 @@ err:
bch_btree_keys_free(b);
return -ENOMEM;
}
EXPORT_SYMBOL(bch_btree_keys_alloc);
void bch_btree_keys_init(struct btree_keys *b, const struct btree_keys_ops *ops,
bool *expensive_debug_checks)
@ -361,7 +361,6 @@ void bch_btree_keys_init(struct btree_keys *b, const struct btree_keys_ops *ops,
* any more.
*/
}
EXPORT_SYMBOL(bch_btree_keys_init);
/* Binary tree stuff for auxiliary search trees */
@ -678,7 +677,6 @@ void bch_bset_init_next(struct btree_keys *b, struct bset *i, uint64_t magic)
bch_bset_build_unwritten_tree(b);
}
EXPORT_SYMBOL(bch_bset_init_next);
/*
* Build auxiliary binary tree 'struct bset_tree *t', this tree is used to
@ -732,7 +730,6 @@ void bch_bset_build_written_tree(struct btree_keys *b)
j = inorder_next(j, t->size))
make_bfloat(t, j);
}
EXPORT_SYMBOL(bch_bset_build_written_tree);
/* Insert */
@ -780,7 +777,6 @@ fix_right: do {
j = j * 2 + 1;
} while (j < t->size);
}
EXPORT_SYMBOL(bch_bset_fix_invalidated_key);
static void bch_bset_fix_lookup_table(struct btree_keys *b,
struct bset_tree *t,
@ -855,7 +851,6 @@ bool bch_bkey_try_merge(struct btree_keys *b, struct bkey *l, struct bkey *r)
return b->ops->key_merge(b, l, r);
}
EXPORT_SYMBOL(bch_bkey_try_merge);
void bch_bset_insert(struct btree_keys *b, struct bkey *where,
struct bkey *insert)
@ -875,7 +870,6 @@ void bch_bset_insert(struct btree_keys *b, struct bkey *where,
bkey_copy(where, insert);
bch_bset_fix_lookup_table(b, t, where);
}
EXPORT_SYMBOL(bch_bset_insert);
unsigned int bch_btree_insert_key(struct btree_keys *b, struct bkey *k,
struct bkey *replace_key)
@ -931,7 +925,6 @@ copy: bkey_copy(m, k);
merged:
return status;
}
EXPORT_SYMBOL(bch_btree_insert_key);
/* Lookup */
@ -1077,7 +1070,6 @@ struct bkey *__bch_bset_search(struct btree_keys *b, struct bset_tree *t,
return i.l;
}
EXPORT_SYMBOL(__bch_bset_search);
/* Btree iterator */
@ -1132,7 +1124,6 @@ struct bkey *bch_btree_iter_init(struct btree_keys *b,
{
return __bch_btree_iter_init(b, iter, search, b->set);
}
EXPORT_SYMBOL(bch_btree_iter_init);
static inline struct bkey *__bch_btree_iter_next(struct btree_iter *iter,
btree_iter_cmp_fn *cmp)
@ -1165,7 +1156,6 @@ struct bkey *bch_btree_iter_next(struct btree_iter *iter)
return __bch_btree_iter_next(iter, btree_iter_cmp);
}
EXPORT_SYMBOL(bch_btree_iter_next);
struct bkey *bch_btree_iter_next_filter(struct btree_iter *iter,
struct btree_keys *b, ptr_filter_fn fn)
@ -1196,7 +1186,6 @@ int bch_bset_sort_state_init(struct bset_sort_state *state,
return mempool_init_page_pool(&state->pool, 1, page_order);
}
EXPORT_SYMBOL(bch_bset_sort_state_init);
static void btree_mergesort(struct btree_keys *b, struct bset *out,
struct btree_iter *iter,
@ -1313,7 +1302,6 @@ void bch_btree_sort_partial(struct btree_keys *b, unsigned int start,
EBUG_ON(oldsize >= 0 && bch_count_data(b) != oldsize);
}
EXPORT_SYMBOL(bch_btree_sort_partial);
void bch_btree_sort_and_fix_extents(struct btree_keys *b,
struct btree_iter *iter,
@ -1366,7 +1354,6 @@ void bch_btree_sort_lazy(struct btree_keys *b, struct bset_sort_state *state)
out:
bch_bset_build_written_tree(b);
}
EXPORT_SYMBOL(bch_btree_sort_lazy);
void bch_btree_keys_stats(struct btree_keys *b, struct bset_stats *stats)
{

19
drivers/md/bcache/btree.c
View File

@ -543,6 +543,11 @@ static void bch_btree_leaf_dirty(struct btree *b, atomic_t *journal_ref)
set_btree_node_dirty(b);
/*
* w->journal is always the oldest journal pin of all bkeys
* in the leaf node, to make sure the oldest jset seq won't
* be increased before this btree node is flushed.
*/
if (journal_ref) {
if (w->journal &&
journal_pin_cmp(b->c, w->journal, journal_ref)) {
@ -723,6 +728,8 @@ static unsigned long bch_mca_scan(struct shrinker *shrink,
* IO can always make forward progress:
*/
nr /= c->btree_pages;
if (nr == 0)
nr = 1;
nr = min_t(unsigned long, nr, mca_can_free(c));
i = 0;
@ -884,15 +891,17 @@ out:
static int mca_cannibalize_lock(struct cache_set *c, struct btree_op *op)
{
struct task_struct *old;
old = cmpxchg(&c->btree_cache_alloc_lock, NULL, current);
if (old && old != current) {
spin_lock(&c->btree_cannibalize_lock);
if (likely(c->btree_cache_alloc_lock == NULL)) {
c->btree_cache_alloc_lock = current;
} else if (c->btree_cache_alloc_lock != current) {
if (op)
prepare_to_wait(&c->btree_cache_wait, &op->wait,
TASK_UNINTERRUPTIBLE);
spin_unlock(&c->btree_cannibalize_lock);
return -EINTR;
}
spin_unlock(&c->btree_cannibalize_lock);
return 0;
}
@ -927,10 +936,12 @@ static struct btree *mca_cannibalize(struct cache_set *c, struct btree_op *op,
*/
static void bch_cannibalize_unlock(struct cache_set *c)
{
spin_lock(&c->btree_cannibalize_lock);
if (c->btree_cache_alloc_lock == current) {
c->btree_cache_alloc_lock = NULL;
wake_up(&c->btree_cache_wait);
}
spin_unlock(&c->btree_cannibalize_lock);
}
static struct btree *mca_alloc(struct cache_set *c, struct btree_op *op,

7
drivers/md/bcache/closure.c
View File

@ -45,7 +45,6 @@ void closure_sub(struct closure *cl, int v)
{
closure_put_after_sub(cl, atomic_sub_return(v, &cl->remaining));
}
EXPORT_SYMBOL(closure_sub);
/*
* closure_put - decrement a closure's refcount
@ -54,7 +53,6 @@ void closure_put(struct closure *cl)
{
closure_put_after_sub(cl, atomic_dec_return(&cl->remaining));
}
EXPORT_SYMBOL(closure_put);
/*
* closure_wake_up - wake up all closures on a wait list, without memory barrier
@ -76,7 +74,6 @@ void __closure_wake_up(struct closure_waitlist *wait_list)
closure_sub(cl, CLOSURE_WAITING + 1);
}
}
EXPORT_SYMBOL(__closure_wake_up);
/**
* closure_wait - add a closure to a waitlist
@ -96,7 +93,6 @@ bool closure_wait(struct closure_waitlist *waitlist, struct closure *cl)
return true;
}
EXPORT_SYMBOL(closure_wait);
struct closure_syncer {
struct task_struct *task;
@ -131,7 +127,6 @@ void __sched __closure_sync(struct closure *cl)
__set_current_state(TASK_RUNNING);
}
EXPORT_SYMBOL(__closure_sync);
#ifdef CONFIG_BCACHE_CLOSURES_DEBUG
@ -149,7 +144,6 @@ void closure_debug_create(struct closure *cl)
list_add(&cl->all, &closure_list);
spin_unlock_irqrestore(&closure_list_lock, flags);
}
EXPORT_SYMBOL(closure_debug_create);
void closure_debug_destroy(struct closure *cl)
{
@ -162,7 +156,6 @@ void closure_debug_destroy(struct closure *cl)
list_del(&cl->all);
spin_unlock_irqrestore(&closure_list_lock, flags);
}
EXPORT_SYMBOL(closure_debug_destroy);
static struct dentry *closure_debug;

12
drivers/md/bcache/request.c
View File

@ -62,18 +62,6 @@ static void bch_data_insert_keys(struct closure *cl)
struct bkey *replace_key = op->replace ? &op->replace_key : NULL;
int ret;
/*
* If we're looping, might already be waiting on
* another journal write - can't wait on more than one journal write at
* a time
*
* XXX: this looks wrong
*/
#if 0
while (atomic_read(&s->cl.remaining) & CLOSURE_WAITING)
closure_sync(&s->cl);
#endif
if (!op->replace)
journal_ref = bch_journal(op->c, &op->insert_keys,
op->flush_journal ? cl : NULL);

56
drivers/md/bcache/super.c
View File

@ -92,10 +92,11 @@ static const char *read_super(struct cache_sb *sb, struct block_device *bdev,
pr_debug("read sb version %llu, flags %llu, seq %llu, journal size %u",
sb->version, sb->flags, sb->seq, sb->keys);
err = "Not a bcache superblock";
err = "Not a bcache superblock (bad offset)";
if (sb->offset != SB_SECTOR)
goto err;
err = "Not a bcache superblock (bad magic)";
if (memcmp(sb->magic, bcache_magic, 16))
goto err;
@ -529,12 +530,29 @@ static void prio_io(struct cache *ca, uint64_t bucket, int op,
closure_sync(cl);
}
void bch_prio_write(struct cache *ca)
int bch_prio_write(struct cache *ca, bool wait)
{
int i;
struct bucket *b;
struct closure cl;
pr_debug("free_prio=%zu, free_none=%zu, free_inc=%zu",
fifo_used(&ca->free[RESERVE_PRIO]),
fifo_used(&ca->free[RESERVE_NONE]),
fifo_used(&ca->free_inc));
/*
* Pre-check if there are enough free buckets. In the non-blocking
* scenario it's better to fail early rather than starting to allocate
* buckets and do a cleanup later in case of failure.
*/
if (!wait) {
size_t avail = fifo_used(&ca->free[RESERVE_PRIO]) +
fifo_used(&ca->free[RESERVE_NONE]);
if (prio_buckets(ca) > avail)
return -ENOMEM;
}
closure_init_stack(&cl);
lockdep_assert_held(&ca->set->bucket_lock);
@ -544,9 +562,6 @@ void bch_prio_write(struct cache *ca)
atomic_long_add(ca->sb.bucket_size * prio_buckets(ca),
&ca->meta_sectors_written);
//pr_debug("free %zu, free_inc %zu, unused %zu", fifo_used(&ca->free),
// fifo_used(&ca->free_inc), fifo_used(&ca->unused));
for (i = prio_buckets(ca) - 1; i >= 0; --i) {
long bucket;
struct prio_set *p = ca->disk_buckets;
@ -564,7 +579,7 @@ void bch_prio_write(struct cache *ca)
p->magic = pset_magic(&ca->sb);
p->csum = bch_crc64(&p->magic, bucket_bytes(ca) - 8);
bucket = bch_bucket_alloc(ca, RESERVE_PRIO, true);
bucket = bch_bucket_alloc(ca, RESERVE_PRIO, wait);
BUG_ON(bucket == -1);
mutex_unlock(&ca->set->bucket_lock);
@ -593,6 +608,7 @@ void bch_prio_write(struct cache *ca)
ca->prio_last_buckets[i] = ca->prio_buckets[i];
}
return 0;
}
static void prio_read(struct cache *ca, uint64_t bucket)
@ -761,20 +777,28 @@ static inline int idx_to_first_minor(int idx)
static void bcache_device_free(struct bcache_device *d)
{
struct gendisk *disk = d->disk;
lockdep_assert_held(&bch_register_lock);
pr_info("%s stopped", d->disk->disk_name);
if (disk)
pr_info("%s stopped", disk->disk_name);
else
pr_err("bcache device (NULL gendisk) stopped");
if (d->c)
bcache_device_detach(d);
if (d->disk && d->disk->flags & GENHD_FL_UP)
del_gendisk(d->disk);
if (d->disk && d->disk->queue)
blk_cleanup_queue(d->disk->queue);
if (d->disk) {
if (disk) {
if (disk->flags & GENHD_FL_UP)
del_gendisk(disk);
if (disk->queue)
blk_cleanup_queue(disk->queue);
ida_simple_remove(&bcache_device_idx,
first_minor_to_idx(d->disk->first_minor));
put_disk(d->disk);
first_minor_to_idx(disk->first_minor));
put_disk(disk);
}
bioset_exit(&d->bio_split);
@ -1769,6 +1793,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
sema_init(&c->sb_write_mutex, 1);
mutex_init(&c->bucket_lock);
init_waitqueue_head(&c->btree_cache_wait);
spin_lock_init(&c->btree_cannibalize_lock);
init_waitqueue_head(&c->bucket_wait);
init_waitqueue_head(&c->gc_wait);
sema_init(&c->uuid_write_mutex, 1);
@ -1809,6 +1834,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
c->congested_read_threshold_us = 2000;
c->congested_write_threshold_us = 20000;
c->error_limit = DEFAULT_IO_ERROR_LIMIT;
c->idle_max_writeback_rate_enabled = 1;
WARN_ON(test_and_clear_bit(CACHE_SET_IO_DISABLE, &c->flags));
return c;
@ -1954,7 +1980,7 @@ static int run_cache_set(struct cache_set *c)
mutex_lock(&c->bucket_lock);
for_each_cache(ca, c, i)
bch_prio_write(ca);
bch_prio_write(ca, true);
mutex_unlock(&c->bucket_lock);
err = "cannot allocate new UUID bucket";

7
drivers/md/bcache/sysfs.c
View File

@ -134,6 +134,7 @@ rw_attribute(expensive_debug_checks);
rw_attribute(cache_replacement_policy);
rw_attribute(btree_shrinker_disabled);
rw_attribute(copy_gc_enabled);
rw_attribute(idle_max_writeback_rate);
rw_attribute(gc_after_writeback);
rw_attribute(size);
@ -747,6 +748,8 @@ SHOW(__bch_cache_set)
sysfs_printf(gc_always_rewrite, "%i", c->gc_always_rewrite);
sysfs_printf(btree_shrinker_disabled, "%i", c->shrinker_disabled);
sysfs_printf(copy_gc_enabled, "%i", c->copy_gc_enabled);
sysfs_printf(idle_max_writeback_rate, "%i",
c->idle_max_writeback_rate_enabled);
sysfs_printf(gc_after_writeback, "%i", c->gc_after_writeback);
sysfs_printf(io_disable, "%i",
test_bit(CACHE_SET_IO_DISABLE, &c->flags));
@ -864,6 +867,9 @@ STORE(__bch_cache_set)
sysfs_strtoul_bool(gc_always_rewrite, c->gc_always_rewrite);
sysfs_strtoul_bool(btree_shrinker_disabled, c->shrinker_disabled);
sysfs_strtoul_bool(copy_gc_enabled, c->copy_gc_enabled);
sysfs_strtoul_bool(idle_max_writeback_rate,
c->idle_max_writeback_rate_enabled);
/*
* write gc_after_writeback here may overwrite an already set
* BCH_DO_AUTO_GC, it doesn't matter because this flag will be
@ -954,6 +960,7 @@ static struct attribute *bch_cache_set_internal_files[] = {
&sysfs_gc_always_rewrite,
&sysfs_btree_shrinker_disabled,
&sysfs_copy_gc_enabled,
&sysfs_idle_max_writeback_rate,
&sysfs_gc_after_writeback,
&sysfs_io_disable,
&sysfs_cutoff_writeback,

4
drivers/md/bcache/writeback.c
View File

@ -122,6 +122,10 @@ static void __update_writeback_rate(struct cached_dev *dc)
static bool set_at_max_writeback_rate(struct cache_set *c,
struct cached_dev *dc)
{
/* Don't sst max writeback rate if it is disabled */
if (!c->idle_max_writeback_rate_enabled)
return false;
/* Don't set max writeback rate if gc is running */
if (!c->gc_mark_valid)
return false;

7
drivers/md/dm-flakey.c
View File

@ -280,7 +280,7 @@ static void flakey_map_bio(struct dm_target *ti, struct bio *bio)
struct flakey_c *fc = ti->private;
bio_set_dev(bio, fc->dev->bdev);
if (bio_sectors(bio) || bio_op(bio) == REQ_OP_ZONE_RESET)
if (bio_sectors(bio) || op_is_zone_mgmt(bio_op(bio)))
bio->bi_iter.bi_sector =
flakey_map_sector(ti, bio->bi_iter.bi_sector);
}
@ -322,8 +322,7 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
pb->bio_submitted = false;
/* Do not fail reset zone */
if (bio_op(bio) == REQ_OP_ZONE_RESET)
if (op_is_zone_mgmt(bio_op(bio)))
goto map_bio;
/* Are we alive ? */
@ -384,7 +383,7 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio,
struct flakey_c *fc = ti->private;
struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
if (bio_op(bio) == REQ_OP_ZONE_RESET)
if (op_is_zone_mgmt(bio_op(bio)))
return DM_ENDIO_DONE;
if (!*error && pb->bio_submitted && (bio_data_dir(bio) == READ)) {

2
drivers/md/dm-linear.c
View File

@ -90,7 +90,7 @@ static void linear_map_bio(struct dm_target *ti, struct bio *bio)
struct linear_c *lc = ti->private;
bio_set_dev(bio, lc->dev->bdev);
if (bio_sectors(bio) || bio_op(bio) == REQ_OP_ZONE_RESET)
if (bio_sectors(bio) || op_is_zone_mgmt(bio_op(bio)))
bio->bi_iter.bi_sector =
linear_map_sector(ti, bio->bi_iter.bi_sector);
}

5
drivers/md/dm.c
View File

@ -1174,7 +1174,8 @@ static size_t dm_dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff,
/*
* A target may call dm_accept_partial_bio only from the map routine. It is
* allowed for all bio types except REQ_PREFLUSH and REQ_OP_ZONE_RESET.
* allowed for all bio types except REQ_PREFLUSH, REQ_OP_ZONE_RESET,
* REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH.
*
* dm_accept_partial_bio informs the dm that the target only wants to process
* additional n_sectors sectors of the bio and the rest of the data should be
@ -1627,7 +1628,7 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md,
ci.sector_count = 0;
error = __send_empty_flush(&ci);
/* dec_pending submits any data associated with flush */
} else if (bio_op(bio) == REQ_OP_ZONE_RESET) {
} else if (op_is_zone_mgmt(bio_op(bio))) {
ci.bio = bio;
ci.sector_count = 0;
error = __split_and_process_non_flush(&ci);

2
drivers/md/md-bitmap.c
View File

@ -2139,6 +2139,7 @@ int md_bitmap_resize(struct bitmap *bitmap, sector_t blocks,
memcpy(page_address(store.sb_page),
page_address(bitmap->storage.sb_page),
sizeof(bitmap_super_t));
spin_lock_irq(&bitmap->counts.lock);
md_bitmap_file_unmap(&bitmap->storage);
bitmap->storage = store;
@ -2154,7 +2155,6 @@ int md_bitmap_resize(struct bitmap *bitmap, sector_t blocks,
blocks = min(old_counts.chunks << old_counts.chunkshift,
chunks << chunkshift);
spin_lock_irq(&bitmap->counts.lock);
/* For cluster raid, need to pre-allocate bitmap */
if (mddev_is_clustered(bitmap->mddev)) {
unsigned long page;

5
drivers/md/md-linear.c
View File

@ -244,10 +244,9 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio)
sector_t start_sector, end_sector, data_offset;
sector_t bio_sector = bio->bi_iter.bi_sector;
if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
if (unlikely(bio->bi_opf & REQ_PREFLUSH)
&& md_flush_request(mddev, bio))
return true;
}
tmp_dev = which_dev(mddev, bio_sector);
start_sector = tmp_dev->end_sector - tmp_dev->rdev->sectors;

5
drivers/md/md-multipath.c
View File

@ -104,10 +104,9 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio)
struct multipath_bh * mp_bh;
struct multipath_info *multipath;
if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
if (unlikely(bio->bi_opf & REQ_PREFLUSH)
&& md_flush_request(mddev, bio))
return true;
}
mp_bh = mempool_alloc(&conf->pool, GFP_NOIO);

53
drivers/md/md.c
View File

@ -550,7 +550,13 @@ static void md_submit_flush_data(struct work_struct *ws)
}
}
void md_flush_request(struct mddev *mddev, struct bio *bio)
/*
* Manages consolidation of flushes and submitting any flushes needed for
* a bio with REQ_PREFLUSH. Returns true if the bio is finished or is
* being finished in another context. Returns false if the flushing is
* complete but still needs the I/O portion of the bio to be processed.
*/
bool md_flush_request(struct mddev *mddev, struct bio *bio)
{
ktime_t start = ktime_get_boottime();
spin_lock_irq(&mddev->lock);
@ -575,9 +581,10 @@ void md_flush_request(struct mddev *mddev, struct bio *bio)
bio_endio(bio);
else {
bio->bi_opf &= ~REQ_PREFLUSH;
mddev->pers->make_request(mddev, bio);
return false;
}
}
return true;
}
EXPORT_SYMBOL(md_flush_request);
@ -1098,6 +1105,7 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE];
mdp_super_t *sb;
int ret;
bool spare_disk = true;
/*
* Calculate the position of the superblock (512byte sectors),
@ -1148,8 +1156,18 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
else
rdev->desc_nr = sb->this_disk.number;
/* not spare disk, or LEVEL_MULTIPATH */
if (sb->level == LEVEL_MULTIPATH ||
(rdev->desc_nr >= 0 &&
sb->disks[rdev->desc_nr].state &
((1<<MD_DISK_SYNC) | (1 << MD_DISK_ACTIVE))))
spare_disk = false;
if (!refdev) {
if (!spare_disk)
ret = 1;
else
ret = 0;
} else {
__u64 ev1, ev2;
mdp_super_t *refsb = page_address(refdev->sb_page);
@ -1165,7 +1183,8 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
}
ev1 = md_event(sb);
ev2 = md_event(refsb);
if (ev1 > ev2)
if (!spare_disk && ev1 > ev2)
ret = 1;
else
ret = 0;
@ -1525,6 +1544,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
sector_t sectors;
char b[BDEVNAME_SIZE], b2[BDEVNAME_SIZE];
int bmask;
bool spare_disk = true;
/*
* Calculate the position of the superblock in 512byte sectors.
@ -1658,8 +1678,19 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
sb->level != 0)
return -EINVAL;
/* not spare disk, or LEVEL_MULTIPATH */
if (sb->level == cpu_to_le32(LEVEL_MULTIPATH) ||
(rdev->desc_nr >= 0 &&
rdev->desc_nr < le32_to_cpu(sb->max_dev) &&
(le16_to_cpu(sb->dev_roles[rdev->desc_nr]) < MD_DISK_ROLE_MAX ||
le16_to_cpu(sb->dev_roles[rdev->desc_nr]) == MD_DISK_ROLE_JOURNAL)))
spare_disk = false;
if (!refdev) {
if (!spare_disk)
ret = 1;
else
ret = 0;
} else {
__u64 ev1, ev2;
struct mdp_superblock_1 *refsb = page_address(refdev->sb_page);
@ -1676,7 +1707,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
ev1 = le64_to_cpu(sb->events);
ev2 = le64_to_cpu(refsb->events);
if (ev1 > ev2)
if (!spare_disk && ev1 > ev2)
ret = 1;
else
ret = 0;
@ -3597,7 +3628,7 @@ abort_free:
* Check a full RAID array for plausibility
*/
static void analyze_sbs(struct mddev *mddev)
static int analyze_sbs(struct mddev *mddev)
{
int i;
struct md_rdev *rdev, *freshest, *tmp;
@ -3618,6 +3649,12 @@ static void analyze_sbs(struct mddev *mddev)
md_kick_rdev_from_array(rdev);
}
/* Cannot find a valid fresh disk */
if (!freshest) {
pr_warn("md: cannot find a valid disk\n");
return -EINVAL;
}
super_types[mddev->major_version].
validate_super(mddev, freshest);
@ -3652,6 +3689,8 @@ static void analyze_sbs(struct mddev *mddev)
clear_bit(In_sync, &rdev->flags);
}
}
return 0;
}
/* Read a fixed-point number.
@ -5570,7 +5609,9 @@ int md_run(struct mddev *mddev)
if (!mddev->raid_disks) {
if (!mddev->persistent)
return -EINVAL;
analyze_sbs(mddev);
err = analyze_sbs(mddev);
if (err)
return -EINVAL;
}
if (mddev->level != LEVEL_NONE)

4
drivers/md/md.h
View File

@ -550,7 +550,7 @@ struct md_personality
int level;
struct list_head list;
struct module *owner;
bool (*make_request)(struct mddev *mddev, struct bio *bio);
bool __must_check (*make_request)(struct mddev *mddev, struct bio *bio);
/*
* start up works that do NOT require md_thread. tasks that
* requires md_thread should go into start()
@ -703,7 +703,7 @@ extern void md_error(struct mddev *mddev, struct md_rdev *rdev);
extern void md_finish_reshape(struct mddev *mddev);
extern int mddev_congested(struct mddev *mddev, int bits);
extern void md_flush_request(struct mddev *mddev, struct bio *bio);
extern bool __must_check md_flush_request(struct mddev *mddev, struct bio *bio);
extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
sector_t sector, int size, struct page *page);
extern int md_super_wait(struct mddev *mddev);

7
drivers/md/raid0.c
View File

@ -575,10 +575,9 @@ static bool raid0_make_request(struct mddev *mddev, struct bio *bio)
unsigned chunk_sects;
unsigned sectors;
if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
if (unlikely(bio->bi_opf & REQ_PREFLUSH)
&& md_flush_request(mddev, bio))
return true;
}
if (unlikely((bio_op(bio) == REQ_OP_DISCARD))) {
raid0_handle_discard(mddev, bio);
@ -615,7 +614,7 @@ static bool raid0_make_request(struct mddev *mddev, struct bio *bio)
tmp_dev = map_sector(mddev, zone, sector, &sector);
break;
default:
WARN("md/raid0:%s: Invalid layout\n", mdname(mddev));
WARN(1, "md/raid0:%s: Invalid layout\n", mdname(mddev));
bio_io_error(bio);
return true;
}

6
drivers/md/raid1.c
View File

@ -819,6 +819,7 @@ static void flush_bio_list(struct r1conf *conf, struct bio *bio)
else
generic_make_request(bio);
bio = next;
cond_resched();
}
}
@ -1567,10 +1568,9 @@ static bool raid1_make_request(struct mddev *mddev, struct bio *bio)
{
sector_t sectors;
if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
if (unlikely(bio->bi_opf & REQ_PREFLUSH)
&& md_flush_request(mddev, bio))
return true;
}
/*
* There is a limit to the maximum size, but

7
drivers/md/raid10.c
View File

@ -191,7 +191,7 @@ static void * r10buf_pool_alloc(gfp_t gfp_flags, void *data)
out_free_pages:
while (--j >= 0)
resync_free_pages(&rps[j * 2]);
resync_free_pages(&rps[j]);
j = 0;
out_free_bio:
@ -1525,10 +1525,9 @@ static bool raid10_make_request(struct mddev *mddev, struct bio *bio)
int chunk_sects = chunk_mask + 1;
int sectors = bio_sectors(bio);
if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
if (unlikely(bio->bi_opf & REQ_PREFLUSH)
&& md_flush_request(mddev, bio))
return true;
}
if (!md_write_start(mddev, bio))
return false;

2
drivers/md/raid5-ppl.c
View File

@ -1404,7 +1404,7 @@ int ppl_init_log(struct r5conf *conf)
atomic64_set(&ppl_conf->seq, 0);
INIT_LIST_HEAD(&ppl_conf->no_mem_stripes);
spin_lock_init(&ppl_conf->no_mem_stripes_lock);
ppl_conf->write_hint = RWF_WRITE_LIFE_NOT_SET;
ppl_conf->write_hint = RWH_WRITE_LIFE_NOT_SET;
if (!mddev->external) {
ppl_conf->signature = ~crc32c_le(~0, mddev->uuid, sizeof(mddev->uuid));

6
drivers/md/raid5.c
View File

@ -1134,7 +1134,7 @@ again:
bi->bi_iter.bi_size = STRIPE_SIZE;
bi->bi_write_hint = sh->dev[i].write_hint;
if (!rrdev)
sh->dev[i].write_hint = RWF_WRITE_LIFE_NOT_SET;
sh->dev[i].write_hint = RWH_WRITE_LIFE_NOT_SET;
/*
* If this is discard request, set bi_vcnt 0. We don't
* want to confuse SCSI because SCSI will replace payload
@ -1187,7 +1187,7 @@ again:
rbi->bi_io_vec[0].bv_offset = 0;
rbi->bi_iter.bi_size = STRIPE_SIZE;
rbi->bi_write_hint = sh->dev[i].write_hint;
sh->dev[i].write_hint = RWF_WRITE_LIFE_NOT_SET;
sh->dev[i].write_hint = RWH_WRITE_LIFE_NOT_SET;
/*
* If this is discard request, set bi_vcnt 0. We don't
* want to confuse SCSI because SCSI will replace payload
@ -5592,7 +5592,7 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
if (ret == 0)
return true;
if (ret == -ENODEV) {
md_flush_request(mddev, bi);
if (md_flush_request(mddev, bi))
return true;
}
/* ret == -EAGAIN, fallback */

24
drivers/nvme/host/core.c
View File

@ -283,6 +283,8 @@ void nvme_complete_rq(struct request *req)
trace_nvme_complete_rq(req);
nvme_cleanup_cmd(req);
if (nvme_req(req)->ctrl->kas)
nvme_req(req)->ctrl->comp_seen = true;
@ -313,7 +315,7 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
if (blk_mq_request_completed(req))
return true;
nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR;
nvme_req(req)->status = NVME_SC_HOST_ABORTED_CMD;
blk_mq_complete_request(req);
return true;
}
@ -626,7 +628,7 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
}
__rq_for_each_bio(bio, req) {
u64 slba = nvme_block_nr(ns, bio->bi_iter.bi_sector);
u64 slba = nvme_sect_to_lba(ns, bio->bi_iter.bi_sector);
u32 nlb = bio->bi_iter.bi_size >> ns->lba_shift;
if (n < segments) {
@ -667,7 +669,7 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
cmnd->write_zeroes.opcode = nvme_cmd_write_zeroes;
cmnd->write_zeroes.nsid = cpu_to_le32(ns->head->ns_id);
cmnd->write_zeroes.slba =
cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req)));
cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
cmnd->write_zeroes.length =
cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
cmnd->write_zeroes.control = 0;
@ -691,7 +693,7 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
cmnd->rw.opcode = (rq_data_dir(req) ? nvme_cmd_write : nvme_cmd_read);
cmnd->rw.nsid = cpu_to_le32(ns->head->ns_id);
cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req)));
cmnd->rw.slba = cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
if (req_op(req) == REQ_OP_WRITE && ctrl->nr_streams)
@ -1647,7 +1649,7 @@ static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type)
static void nvme_set_chunk_size(struct nvme_ns *ns)
{
u32 chunk_size = (((u32)ns->noiob) << (ns->lba_shift - 9));
u32 chunk_size = nvme_lba_to_sect(ns, ns->noiob);
blk_queue_chunk_sectors(ns->queue, rounddown_pow_of_two(chunk_size));
}
@ -1684,8 +1686,7 @@ static void nvme_config_discard(struct gendisk *disk, struct nvme_ns *ns)
static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
{
u32 max_sectors;
unsigned short bs = 1 << ns->lba_shift;
u64 max_blocks;
if (!(ns->ctrl->oncs & NVME_CTRL_ONCS_WRITE_ZEROES) ||
(ns->ctrl->quirks & NVME_QUIRK_DISABLE_WRITE_ZEROES))
@ -1701,11 +1702,12 @@ static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
* nvme_init_identify() if available.
*/
if (ns->ctrl->max_hw_sectors == UINT_MAX)
max_sectors = ((u32)(USHRT_MAX + 1) * bs) >> 9;
max_blocks = (u64)USHRT_MAX + 1;
else
max_sectors = ((u32)(ns->ctrl->max_hw_sectors + 1) * bs) >> 9;
max_blocks = ns->ctrl->max_hw_sectors + 1;
blk_queue_max_write_zeroes_sectors(disk->queue, max_sectors);
blk_queue_max_write_zeroes_sectors(disk->queue,
nvme_lba_to_sect(ns, max_blocks));
}
static int nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
@ -1748,7 +1750,7 @@ static bool nvme_ns_ids_equal(struct nvme_ns_ids *a, struct nvme_ns_ids *b)
static void nvme_update_disk_info(struct gendisk *disk,
struct nvme_ns *ns, struct nvme_id_ns *id)
{
sector_t capacity = le64_to_cpu(id->nsze) << (ns->lba_shift - 9);
sector_t capacity = nvme_lba_to_sect(ns, le64_to_cpu(id->nsze));
unsigned short bs = 1 << ns->lba_shift;
u32 atomic_bs, phys_bs, io_opt;

49
drivers/nvme/host/fc.c
View File

@ -1224,7 +1224,7 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl,
lsreq->rqstlen = sizeof(*assoc_rqst);
lsreq->rspaddr = assoc_acc;
lsreq->rsplen = sizeof(*assoc_acc);
lsreq->timeout = NVME_FC_CONNECT_TIMEOUT_SEC;
lsreq->timeout = NVME_FC_LS_TIMEOUT_SEC;
ret = nvme_fc_send_ls_req(ctrl->rport, lsop);
if (ret)
@ -1264,7 +1264,7 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl,
if (fcret) {
ret = -EBADF;
dev_err(ctrl->dev,
"q %d connect failed: %s\n",
"q %d Create Association LS failed: %s\n",
queue->qnum, validation_errors[fcret]);
} else {
ctrl->association_id =
@ -1332,7 +1332,7 @@ nvme_fc_connect_queue(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
lsreq->rqstlen = sizeof(*conn_rqst);
lsreq->rspaddr = conn_acc;
lsreq->rsplen = sizeof(*conn_acc);
lsreq->timeout = NVME_FC_CONNECT_TIMEOUT_SEC;
lsreq->timeout = NVME_FC_LS_TIMEOUT_SEC;
ret = nvme_fc_send_ls_req(ctrl->rport, lsop);
if (ret)
@ -1363,7 +1363,7 @@ nvme_fc_connect_queue(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
if (fcret) {
ret = -EBADF;
dev_err(ctrl->dev,
"q %d connect failed: %s\n",
"q %d Create I/O Connection LS failed: %s\n",
queue->qnum, validation_errors[fcret]);
} else {
queue->connection_id =
@ -1376,7 +1376,7 @@ out_free_buffer:
out_no_memory:
if (ret)
dev_err(ctrl->dev,
"queue %d connect command failed (%d).\n",
"queue %d connect I/O queue failed (%d).\n",
queue->qnum, ret);
return ret;
}
@ -1413,8 +1413,8 @@ nvme_fc_disconnect_assoc_done(struct nvmefc_ls_req *lsreq, int status)
static void
nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
{
struct fcnvme_ls_disconnect_rqst *discon_rqst;
struct fcnvme_ls_disconnect_acc *discon_acc;
struct fcnvme_ls_disconnect_assoc_rqst *discon_rqst;
struct fcnvme_ls_disconnect_assoc_acc *discon_acc;
struct nvmefc_ls_req_op *lsop;
struct nvmefc_ls_req *lsreq;
int ret;
@ -1430,11 +1430,11 @@ nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
lsreq = &lsop->ls_req;
lsreq->private = (void *)&lsop[1];
discon_rqst = (struct fcnvme_ls_disconnect_rqst *)
discon_rqst = (struct fcnvme_ls_disconnect_assoc_rqst *)
(lsreq->private + ctrl->lport->ops->lsrqst_priv_sz);
discon_acc = (struct fcnvme_ls_disconnect_acc *)&discon_rqst[1];
discon_acc = (struct fcnvme_ls_disconnect_assoc_acc *)&discon_rqst[1];
discon_rqst->w0.ls_cmd = FCNVME_LS_DISCONNECT;
discon_rqst->w0.ls_cmd = FCNVME_LS_DISCONNECT_ASSOC;
discon_rqst->desc_list_len = cpu_to_be32(
sizeof(struct fcnvme_lsdesc_assoc_id) +
sizeof(struct fcnvme_lsdesc_disconn_cmd));
@ -1451,22 +1451,17 @@ nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
discon_rqst->discon_cmd.desc_len =
fcnvme_lsdesc_len(
sizeof(struct fcnvme_lsdesc_disconn_cmd));
discon_rqst->discon_cmd.scope = FCNVME_DISCONN_ASSOCIATION;
discon_rqst->discon_cmd.id = cpu_to_be64(ctrl->association_id);
lsreq->rqstaddr = discon_rqst;
lsreq->rqstlen = sizeof(*discon_rqst);
lsreq->rspaddr = discon_acc;
lsreq->rsplen = sizeof(*discon_acc);
lsreq->timeout = NVME_FC_CONNECT_TIMEOUT_SEC;
lsreq->timeout = NVME_FC_LS_TIMEOUT_SEC;
ret = nvme_fc_send_ls_req_async(ctrl->rport, lsop,
nvme_fc_disconnect_assoc_done);
if (ret)
kfree(lsop);
/* only meaningful part to terminating the association */
ctrl->association_id = 0;
}
@ -1662,7 +1657,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
(freq->rcv_rsplen / 4) ||
be32_to_cpu(op->rsp_iu.xfrd_len) !=
freq->transferred_length ||
op->rsp_iu.status_code ||
op->rsp_iu.ersp_result ||
sqe->common.command_id != cqe->command_id)) {
status = cpu_to_le16(NVME_SC_HOST_PATH_ERROR << 1);
dev_info(ctrl->ctrl.device,
@ -1672,7 +1667,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
ctrl->cnum, be16_to_cpu(op->rsp_iu.iu_len),
be32_to_cpu(op->rsp_iu.xfrd_len),
freq->transferred_length,
op->rsp_iu.status_code,
op->rsp_iu.ersp_result,
sqe->common.command_id,
cqe->command_id);
goto done;
@ -1731,9 +1726,14 @@ __nvme_fc_init_request(struct nvme_fc_ctrl *ctrl,
op->rq = rq;
op->rqno = rqno;
cmdiu->scsi_id = NVME_CMD_SCSI_ID;
cmdiu->format_id = NVME_CMD_FORMAT_ID;
cmdiu->fc_id = NVME_CMD_FC_ID;
cmdiu->iu_len = cpu_to_be16(sizeof(*cmdiu) / sizeof(u32));
if (queue->qnum)
cmdiu->rsv_cat = fccmnd_set_cat_css(0,
(NVME_CC_CSS_NVM >> NVME_CC_CSS_SHIFT));
else
cmdiu->rsv_cat = fccmnd_set_cat_admin(0);
op->fcp_req.cmddma = fc_dma_map_single(ctrl->lport->dev,
&op->cmd_iu, sizeof(op->cmd_iu), DMA_TO_DEVICE);
@ -2173,8 +2173,6 @@ nvme_fc_unmap_data(struct nvme_fc_ctrl *ctrl, struct request *rq,
fc_dma_unmap_sg(ctrl->lport->dev, freq->sg_table.sgl, op->nents,
rq_dma_dir(rq));
nvme_cleanup_cmd(rq);
sg_free_table_chained(&freq->sg_table, SG_CHUNK_SIZE);
freq->sg_cnt = 0;
@ -2305,6 +2303,7 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
if (!(op->flags & FCOP_FLAGS_AEN))
nvme_fc_unmap_data(ctrl, op->rq, op);
nvme_cleanup_cmd(op->rq);
nvme_fc_ctrl_put(ctrl);
if (ctrl->rport->remoteport.port_state == FC_OBJSTATE_ONLINE &&
@ -2695,7 +2694,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
/* warn if maxcmd is lower than queue_size */
dev_warn(ctrl->ctrl.device,
"queue_size %zu > ctrl maxcmd %u, reducing "
"to queue_size\n",
"to maxcmd\n",
opts->queue_size, ctrl->ctrl.maxcmd);
opts->queue_size = ctrl->ctrl.maxcmd;
}
@ -2703,7 +2702,8 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
if (opts->queue_size > ctrl->ctrl.sqsize + 1) {
/* warn if sqsize is lower than queue_size */
dev_warn(ctrl->ctrl.device,
"queue_size %zu > ctrl sqsize %u, clamping down\n",
"queue_size %zu > ctrl sqsize %u, reducing "
"to sqsize\n",
opts->queue_size, ctrl->ctrl.sqsize + 1);
opts->queue_size = ctrl->ctrl.sqsize + 1;
}
@ -2739,6 +2739,7 @@ out_term_aen_ops:
out_disconnect_admin_queue:
/* send a Disconnect(association) LS to fc-nvme target */
nvme_fc_xmt_disconnect_assoc(ctrl);
ctrl->association_id = 0;
out_delete_hw_queue:
__nvme_fc_delete_hw_queue(ctrl, &ctrl->queues[0], 0);
out_free_queue:
@ -2830,6 +2831,8 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl)
if (ctrl->association_id)
nvme_fc_xmt_disconnect_assoc(ctrl);
ctrl->association_id = 0;
if (ctrl->ctrl.tagset) {
nvme_fc_delete_hw_io_queues(ctrl);
nvme_fc_free_io_queues(ctrl);

13
drivers/nvme/host/multipath.c
View File

@ -95,6 +95,7 @@ void nvme_failover_req(struct request *req)
}
break;
case NVME_SC_HOST_PATH_ERROR:
case NVME_SC_HOST_ABORTED_CMD:
/*
* Temporary transport disruption in talking to the controller.
* Try to send on a new path.
@ -446,8 +447,14 @@ static int nvme_parse_ana_log(struct nvme_ctrl *ctrl, void *data,
for (i = 0; i < le16_to_cpu(ctrl->ana_log_buf->ngrps); i++) {
struct nvme_ana_group_desc *desc = base + offset;
u32 nr_nsids = le32_to_cpu(desc->nnsids);
size_t nsid_buf_size = nr_nsids * sizeof(__le32);
u32 nr_nsids;
size_t nsid_buf_size;
if (WARN_ON_ONCE(offset > ctrl->ana_log_size - sizeof(*desc)))
return -EINVAL;
nr_nsids = le32_to_cpu(desc->nnsids);
nsid_buf_size = nr_nsids * sizeof(__le32);
if (WARN_ON_ONCE(desc->grpid == 0))
return -EINVAL;
@ -467,8 +474,6 @@ static int nvme_parse_ana_log(struct nvme_ctrl *ctrl, void *data,
return error;
offset += nsid_buf_size;
if (WARN_ON_ONCE(offset > ctrl->ana_log_size - sizeof(*desc)))
return -EINVAL;
}
return 0;

20
drivers/nvme/host/nvme.h
View File

@ -419,9 +419,20 @@ static inline int nvme_reset_subsystem(struct nvme_ctrl *ctrl)
return ctrl->ops->reg_write32(ctrl, NVME_REG_NSSR, 0x4E564D65);
}
static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
/*
* Convert a 512B sector number to a device logical block number.
*/
static inline u64 nvme_sect_to_lba(struct nvme_ns *ns, sector_t sector)
{
return (sector >> (ns->lba_shift - 9));
return sector >> (ns->lba_shift - SECTOR_SHIFT);
}
/*
* Convert a device logical block number to a 512B sector number.
*/
static inline sector_t nvme_lba_to_sect(struct nvme_ns *ns, u64 lba)
{
return lba << (ns->lba_shift - SECTOR_SHIFT);
}
static inline void nvme_end_request(struct request *req, __le16 status,
@ -446,6 +457,11 @@ static inline void nvme_put_ctrl(struct nvme_ctrl *ctrl)
put_device(ctrl->device);
}
static inline bool nvme_is_aen_req(u16 qid, __u16 command_id)
{
return !qid && command_id >= NVME_AQ_BLK_MQ_DEPTH;
}
void nvme_complete_rq(struct request *req);
bool nvme_cancel_request(struct request *req, void *data, bool reserved);
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,

6
drivers/nvme/host/pci.c
View File

@ -925,7 +925,6 @@ static void nvme_pci_complete_rq(struct request *req)
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
struct nvme_dev *dev = iod->nvmeq->dev;
nvme_cleanup_cmd(req);
if (blk_integrity_rq(req))
dma_unmap_page(dev->dev, iod->meta_dma,
rq_integrity_vec(req)->bv_len, rq_data_dir(req));
@ -968,8 +967,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, u16 idx)
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
if (unlikely(nvmeq->qid == 0 &&
cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
if (unlikely(nvme_is_aen_req(nvmeq->qid, cqe->command_id))) {
nvme_complete_async_event(&nvmeq->dev->ctrl,
cqe->status, &cqe->result);
return;
@ -2982,7 +2980,7 @@ static int nvme_suspend(struct device *dev)
/*
* Clearing npss forces a controller reset on resume. The
* correct value will be resdicovered then.
* correct value will be rediscovered then.
*/
ret = nvme_disable_prepare_reset(ndev, true);
ctrl->npss = 0;

16
drivers/nvme/host/rdma.c
View File

@ -1160,8 +1160,6 @@ static void nvme_rdma_unmap_data(struct nvme_rdma_queue *queue,
}
ib_dma_unmap_sg(ibdev, req->sg_table.sgl, req->nents, rq_dma_dir(rq));
nvme_cleanup_cmd(rq);
sg_free_table_chained(&req->sg_table, SG_CHUNK_SIZE);
}
@ -1501,8 +1499,8 @@ static void nvme_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc)
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
if (unlikely(nvme_rdma_queue_idx(queue) == 0 &&
cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH))
if (unlikely(nvme_is_aen_req(nvme_rdma_queue_idx(queue),
cqe->command_id)))
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
else
@ -1768,7 +1766,6 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
if (unlikely(err < 0)) {
dev_err(queue->ctrl->ctrl.device,
"Failed to map data (%d)\n", err);
nvme_cleanup_cmd(rq);
goto err;
}
@ -1779,18 +1776,19 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
err = nvme_rdma_post_send(queue, sqe, req->sge, req->num_sge,
req->mr ? &req->reg_wr.wr : NULL);
if (unlikely(err)) {
nvme_rdma_unmap_data(queue, rq);
goto err;
}
if (unlikely(err))
goto err_unmap;
return BLK_STS_OK;
err_unmap:
nvme_rdma_unmap_data(queue, rq);
err:
if (err == -ENOMEM || err == -EAGAIN)
ret = BLK_STS_RESOURCE;
else
ret = BLK_STS_IOERR;
nvme_cleanup_cmd(rq);
unmap_qe:
ib_dma_unmap_single(dev, req->sqe.dma, sizeof(struct nvme_command),
DMA_TO_DEVICE);

4
drivers/nvme/host/tcp.c
View File

@ -491,8 +491,8 @@ static int nvme_tcp_handle_comp(struct nvme_tcp_queue *queue,
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
if (unlikely(nvme_tcp_queue_id(queue) == 0 &&
cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH))
if (unlikely(nvme_is_aen_req(nvme_tcp_queue_id(queue),
cqe->command_id)))
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
else

129
drivers/nvme/target/admin-cmd.c
View File

@ -31,7 +31,7 @@ u64 nvmet_get_log_page_offset(struct nvme_command *cmd)
static void nvmet_execute_get_log_page_noop(struct nvmet_req *req)
{
nvmet_req_complete(req, nvmet_zero_sgl(req, 0, req->data_len));
nvmet_req_complete(req, nvmet_zero_sgl(req, 0, req->transfer_len));
}
static void nvmet_execute_get_log_page_error(struct nvmet_req *req)
@ -134,7 +134,7 @@ static void nvmet_execute_get_log_page_smart(struct nvmet_req *req)
u16 status = NVME_SC_INTERNAL;
unsigned long flags;
if (req->data_len != sizeof(*log))
if (req->transfer_len != sizeof(*log))
goto out;
log = kzalloc(sizeof(*log), GFP_KERNEL);
@ -196,7 +196,7 @@ static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req)
u16 status = NVME_SC_INTERNAL;
size_t len;
if (req->data_len != NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32))
if (req->transfer_len != NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32))
goto out;
mutex_lock(&ctrl->lock);
@ -206,7 +206,7 @@ static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req)
len = ctrl->nr_changed_ns * sizeof(__le32);
status = nvmet_copy_to_sgl(req, 0, ctrl->changed_ns_list, len);
if (!status)
status = nvmet_zero_sgl(req, len, req->data_len - len);
status = nvmet_zero_sgl(req, len, req->transfer_len - len);
ctrl->nr_changed_ns = 0;
nvmet_clear_aen_bit(req, NVME_AEN_BIT_NS_ATTR);
mutex_unlock(&ctrl->lock);
@ -282,6 +282,36 @@ out:
nvmet_req_complete(req, status);
}
static void nvmet_execute_get_log_page(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, nvmet_get_log_page_len(req->cmd)))
return;
switch (req->cmd->get_log_page.lid) {
case NVME_LOG_ERROR:
return nvmet_execute_get_log_page_error(req);
case NVME_LOG_SMART:
return nvmet_execute_get_log_page_smart(req);
case NVME_LOG_FW_SLOT:
/*
* We only support a single firmware slot which always is
* active, so we can zero out the whole firmware slot log and
* still claim to fully implement this mandatory log page.
*/
return nvmet_execute_get_log_page_noop(req);
case NVME_LOG_CHANGED_NS:
return nvmet_execute_get_log_changed_ns(req);
case NVME_LOG_CMD_EFFECTS:
return nvmet_execute_get_log_cmd_effects_ns(req);
case NVME_LOG_ANA:
return nvmet_execute_get_log_page_ana(req);
}
pr_err("unhandled lid %d on qid %d\n",
req->cmd->get_log_page.lid, req->sq->qid);
req->error_loc = offsetof(struct nvme_get_log_page_command, lid);
nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);
}
static void nvmet_execute_identify_ctrl(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
@ -565,6 +595,28 @@ out:
nvmet_req_complete(req, status);
}
static void nvmet_execute_identify(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, NVME_IDENTIFY_DATA_SIZE))
return;
switch (req->cmd->identify.cns) {
case NVME_ID_CNS_NS:
return nvmet_execute_identify_ns(req);
case NVME_ID_CNS_CTRL:
return nvmet_execute_identify_ctrl(req);
case NVME_ID_CNS_NS_ACTIVE_LIST:
return nvmet_execute_identify_nslist(req);
case NVME_ID_CNS_NS_DESC_LIST:
return nvmet_execute_identify_desclist(req);
}
pr_err("unhandled identify cns %d on qid %d\n",
req->cmd->identify.cns, req->sq->qid);
req->error_loc = offsetof(struct nvme_identify, cns);
nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);
}
/*
* A "minimum viable" abort implementation: the command is mandatory in the
* spec, but we are not required to do any useful work. We couldn't really
@ -574,6 +626,8 @@ out:
*/
static void nvmet_execute_abort(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, 0))
return;
nvmet_set_result(req, 1);
nvmet_req_complete(req, 0);
}
@ -658,6 +712,9 @@ static void nvmet_execute_set_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 status = 0;
if (!nvmet_check_data_len(req, 0))
return;
switch (cdw10 & 0xff) {
case NVME_FEAT_NUM_QUEUES:
nvmet_set_result(req,
@ -721,6 +778,9 @@ static void nvmet_execute_get_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 status = 0;
if (!nvmet_check_data_len(req, 0))
return;
switch (cdw10 & 0xff) {
/*
* These features are mandatory in the spec, but we don't
@ -785,6 +845,9 @@ void nvmet_execute_async_event(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
if (!nvmet_check_data_len(req, 0))
return;
mutex_lock(&ctrl->lock);
if (ctrl->nr_async_event_cmds >= NVMET_ASYNC_EVENTS) {
mutex_unlock(&ctrl->lock);
@ -801,6 +864,9 @@ void nvmet_execute_keep_alive(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
if (!nvmet_check_data_len(req, 0))
return;
pr_debug("ctrl %d update keep-alive timer for %d secs\n",
ctrl->cntlid, ctrl->kato);
@ -813,77 +879,36 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req)
struct nvme_command *cmd = req->cmd;
u16 ret;
if (nvme_is_fabrics(cmd))
return nvmet_parse_fabrics_cmd(req);
if (req->sq->ctrl->subsys->type == NVME_NQN_DISC)
return nvmet_parse_discovery_cmd(req);
ret = nvmet_check_ctrl_status(req, cmd);
if (unlikely(ret))
return ret;
switch (cmd->common.opcode) {
case nvme_admin_get_log_page:
req->data_len = nvmet_get_log_page_len(cmd);
switch (cmd->get_log_page.lid) {
case NVME_LOG_ERROR:
req->execute = nvmet_execute_get_log_page_error;
req->execute = nvmet_execute_get_log_page;
return 0;
case NVME_LOG_SMART:
req->execute = nvmet_execute_get_log_page_smart;
return 0;
case NVME_LOG_FW_SLOT:
/*
* We only support a single firmware slot which always
* is active, so we can zero out the whole firmware slot
* log and still claim to fully implement this mandatory
* log page.
*/
req->execute = nvmet_execute_get_log_page_noop;
return 0;
case NVME_LOG_CHANGED_NS:
req->execute = nvmet_execute_get_log_changed_ns;
return 0;
case NVME_LOG_CMD_EFFECTS:
req->execute = nvmet_execute_get_log_cmd_effects_ns;
return 0;
case NVME_LOG_ANA:
req->execute = nvmet_execute_get_log_page_ana;
return 0;
}
break;
case nvme_admin_identify:
req->data_len = NVME_IDENTIFY_DATA_SIZE;
switch (cmd->identify.cns) {
case NVME_ID_CNS_NS:
req->execute = nvmet_execute_identify_ns;
req->execute = nvmet_execute_identify;
return 0;
case NVME_ID_CNS_CTRL:
req->execute = nvmet_execute_identify_ctrl;
return 0;
case NVME_ID_CNS_NS_ACTIVE_LIST:
req->execute = nvmet_execute_identify_nslist;
return 0;
case NVME_ID_CNS_NS_DESC_LIST:
req->execute = nvmet_execute_identify_desclist;
return 0;
}
break;
case nvme_admin_abort_cmd:
req->execute = nvmet_execute_abort;
req->data_len = 0;
return 0;
case nvme_admin_set_features:
req->execute = nvmet_execute_set_features;
req->data_len = 0;
return 0;
case nvme_admin_get_features:
req->execute = nvmet_execute_get_features;
req->data_len = 0;
return 0;
case nvme_admin_async_event:
req->execute = nvmet_execute_async_event;
req->data_len = 0;
return 0;
case nvme_admin_keep_alive:
req->execute = nvmet_execute_keep_alive;
req->data_len = 0;
return 0;
}

20
drivers/nvme/target/core.c
View File

@ -892,14 +892,10 @@ bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
}
if (unlikely(!req->sq->ctrl))
/* will return an error for any Non-connect command: */
/* will return an error for any non-connect command: */
status = nvmet_parse_connect_cmd(req);
else if (likely(req->sq->qid != 0))
status = nvmet_parse_io_cmd(req);
else if (nvme_is_fabrics(req->cmd))
status = nvmet_parse_fabrics_cmd(req);
else if (req->sq->ctrl->subsys->type == NVME_NQN_DISC)
status = nvmet_parse_discovery_cmd(req);
else
status = nvmet_parse_admin_cmd(req);
@ -930,15 +926,17 @@ void nvmet_req_uninit(struct nvmet_req *req)
}
EXPORT_SYMBOL_GPL(nvmet_req_uninit);
void nvmet_req_execute(struct nvmet_req *req)
bool nvmet_check_data_len(struct nvmet_req *req, size_t data_len)
{
if (unlikely(req->data_len != req->transfer_len)) {
if (unlikely(data_len != req->transfer_len)) {
req->error_loc = offsetof(struct nvme_common_command, dptr);
nvmet_req_complete(req, NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR);
} else
req->execute(req);
return false;
}
EXPORT_SYMBOL_GPL(nvmet_req_execute);
return true;
}
EXPORT_SYMBOL_GPL(nvmet_check_data_len);
int nvmet_req_alloc_sgl(struct nvmet_req *req)
{
@ -966,7 +964,7 @@ int nvmet_req_alloc_sgl(struct nvmet_req *req)
}
req->sg = sgl_alloc(req->transfer_len, GFP_KERNEL, &req->sg_cnt);
if (!req->sg)
if (unlikely(!req->sg))
return -ENOMEM;
return 0;

66
drivers/nvme/target/discovery.c
View File

@ -157,7 +157,7 @@ static size_t discovery_log_entries(struct nvmet_req *req)
return entries;
}
static void nvmet_execute_get_disc_log_page(struct nvmet_req *req)
static void nvmet_execute_disc_get_log_page(struct nvmet_req *req)
{
const int entry_size = sizeof(struct nvmf_disc_rsp_page_entry);
struct nvmet_ctrl *ctrl = req->sq->ctrl;
@ -171,6 +171,16 @@ static void nvmet_execute_get_disc_log_page(struct nvmet_req *req)
u16 status = 0;
void *buffer;
if (!nvmet_check_data_len(req, data_len))
return;
if (req->cmd->get_log_page.lid != NVME_LOG_DISC) {
req->error_loc =
offsetof(struct nvme_get_log_page_command, lid);
status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
goto out;
}
/* Spec requires dword aligned offsets */
if (offset & 0x3) {
status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
@ -227,20 +237,35 @@ out:
nvmet_req_complete(req, status);
}
static void nvmet_execute_identify_disc_ctrl(struct nvmet_req *req)
static void nvmet_execute_disc_identify(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
struct nvme_id_ctrl *id;
const char model[] = "Linux";
u16 status = 0;
if (!nvmet_check_data_len(req, NVME_IDENTIFY_DATA_SIZE))
return;
if (req->cmd->identify.cns != NVME_ID_CNS_CTRL) {
req->error_loc = offsetof(struct nvme_identify, cns);
status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
goto out;
}
id = kzalloc(sizeof(*id), GFP_KERNEL);
if (!id) {
status = NVME_SC_INTERNAL;
goto out;
}
memset(id->sn, ' ', sizeof(id->sn));
bin2hex(id->sn, &ctrl->subsys->serial,
min(sizeof(ctrl->subsys->serial), sizeof(id->sn) / 2));
memset(id->fr, ' ', sizeof(id->fr));
strncpy((char *)id->fr, UTS_RELEASE, sizeof(id->fr));
memcpy_and_pad(id->mn, sizeof(id->mn), model, sizeof(model) - 1, ' ');
memcpy_and_pad(id->fr, sizeof(id->fr),
UTS_RELEASE, strlen(UTS_RELEASE), ' ');
/* no limit on data transfer sizes for now */
id->mdts = 0;
@ -273,6 +298,9 @@ static void nvmet_execute_disc_set_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 stat;
if (!nvmet_check_data_len(req, 0))
return;
switch (cdw10 & 0xff) {
case NVME_FEAT_KATO:
stat = nvmet_set_feat_kato(req);
@ -296,6 +324,9 @@ static void nvmet_execute_disc_get_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 stat = 0;
if (!nvmet_check_data_len(req, 0))
return;
switch (cdw10 & 0xff) {
case NVME_FEAT_KATO:
nvmet_get_feat_kato(req);
@ -328,47 +359,22 @@ u16 nvmet_parse_discovery_cmd(struct nvmet_req *req)
switch (cmd->common.opcode) {
case nvme_admin_set_features:
req->execute = nvmet_execute_disc_set_features;
req->data_len = 0;
return 0;
case nvme_admin_get_features:
req->execute = nvmet_execute_disc_get_features;
req->data_len = 0;
return 0;
case nvme_admin_async_event:
req->execute = nvmet_execute_async_event;
req->data_len = 0;
return 0;
case nvme_admin_keep_alive:
req->execute = nvmet_execute_keep_alive;
req->data_len = 0;
return 0;
case nvme_admin_get_log_page:
req->data_len = nvmet_get_log_page_len(cmd);
switch (cmd->get_log_page.lid) {
case NVME_LOG_DISC:
req->execute = nvmet_execute_get_disc_log_page;
req->execute = nvmet_execute_disc_get_log_page;
return 0;
default:
pr_err("unsupported get_log_page lid %d\n",
cmd->get_log_page.lid);
req->error_loc =
offsetof(struct nvme_get_log_page_command, lid);
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
}
case nvme_admin_identify:
req->data_len = NVME_IDENTIFY_DATA_SIZE;
switch (cmd->identify.cns) {
case NVME_ID_CNS_CTRL:
req->execute =
nvmet_execute_identify_disc_ctrl;
req->execute = nvmet_execute_disc_identify;
return 0;
default:
pr_err("unsupported identify cns %d\n",
cmd->identify.cns);
req->error_loc = offsetof(struct nvme_identify, cns);
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
}
default:
pr_err("unhandled cmd %d\n", cmd->common.opcode);
req->error_loc = offsetof(struct nvme_common_command, opcode);

15
drivers/nvme/target/fabrics-cmd.c
View File

@ -12,6 +12,9 @@ static void nvmet_execute_prop_set(struct nvmet_req *req)
u64 val = le64_to_cpu(req->cmd->prop_set.value);
u16 status = 0;
if (!nvmet_check_data_len(req, 0))
return;
if (req->cmd->prop_set.attrib & 1) {
req->error_loc =
offsetof(struct nvmf_property_set_command, attrib);
@ -38,6 +41,9 @@ static void nvmet_execute_prop_get(struct nvmet_req *req)
u16 status = 0;
u64 val = 0;
if (!nvmet_check_data_len(req, 0))
return;
if (req->cmd->prop_get.attrib & 1) {
switch (le32_to_cpu(req->cmd->prop_get.offset)) {
case NVME_REG_CAP:
@ -82,11 +88,9 @@ u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req)
switch (cmd->fabrics.fctype) {
case nvme_fabrics_type_property_set:
req->data_len = 0;
req->execute = nvmet_execute_prop_set;
break;
case nvme_fabrics_type_property_get:
req->data_len = 0;
req->execute = nvmet_execute_prop_get;
break;
default:
@ -147,6 +151,9 @@ static void nvmet_execute_admin_connect(struct nvmet_req *req)
struct nvmet_ctrl *ctrl = NULL;
u16 status = 0;
if (!nvmet_check_data_len(req, sizeof(struct nvmf_connect_data)))
return;
d = kmalloc(sizeof(*d), GFP_KERNEL);
if (!d) {
status = NVME_SC_INTERNAL;
@ -211,6 +218,9 @@ static void nvmet_execute_io_connect(struct nvmet_req *req)
u16 qid = le16_to_cpu(c->qid);
u16 status = 0;
if (!nvmet_check_data_len(req, sizeof(struct nvmf_connect_data)))
return;
d = kmalloc(sizeof(*d), GFP_KERNEL);
if (!d) {
status = NVME_SC_INTERNAL;
@ -281,7 +291,6 @@ u16 nvmet_parse_connect_cmd(struct nvmet_req *req)
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
}
req->data_len = sizeof(struct nvmf_connect_data);
if (cmd->connect.qid == 0)
req->execute = nvmet_execute_admin_connect;
else

31
drivers/nvme/target/fc.c
View File

@ -1495,20 +1495,20 @@ static void
nvmet_fc_ls_disconnect(struct nvmet_fc_tgtport *tgtport,
struct nvmet_fc_ls_iod *iod)
{
struct fcnvme_ls_disconnect_rqst *rqst =
(struct fcnvme_ls_disconnect_rqst *)iod->rqstbuf;
struct fcnvme_ls_disconnect_acc *acc =
(struct fcnvme_ls_disconnect_acc *)iod->rspbuf;
struct fcnvme_ls_disconnect_assoc_rqst *rqst =
(struct fcnvme_ls_disconnect_assoc_rqst *)iod->rqstbuf;
struct fcnvme_ls_disconnect_assoc_acc *acc =
(struct fcnvme_ls_disconnect_assoc_acc *)iod->rspbuf;
struct nvmet_fc_tgt_assoc *assoc;
int ret = 0;
memset(acc, 0, sizeof(*acc));
if (iod->rqstdatalen < sizeof(struct fcnvme_ls_disconnect_rqst))
if (iod->rqstdatalen < sizeof(struct fcnvme_ls_disconnect_assoc_rqst))
ret = VERR_DISCONN_LEN;
else if (rqst->desc_list_len !=
fcnvme_lsdesc_len(
sizeof(struct fcnvme_ls_disconnect_rqst)))
sizeof(struct fcnvme_ls_disconnect_assoc_rqst)))
ret = VERR_DISCONN_RQST_LEN;
else if (rqst->associd.desc_tag != cpu_to_be32(FCNVME_LSDESC_ASSOC_ID))
ret = VERR_ASSOC_ID;
@ -1523,8 +1523,11 @@ nvmet_fc_ls_disconnect(struct nvmet_fc_tgtport *tgtport,
fcnvme_lsdesc_len(
sizeof(struct fcnvme_lsdesc_disconn_cmd)))
ret = VERR_DISCONN_CMD_LEN;
else if ((rqst->discon_cmd.scope != FCNVME_DISCONN_ASSOCIATION) &&
(rqst->discon_cmd.scope != FCNVME_DISCONN_CONNECTION))
/*
* As the standard changed on the LS, check if old format and scope
* something other than Association (e.g. 0).
*/
else if (rqst->discon_cmd.rsvd8[0])
ret = VERR_DISCONN_SCOPE;
else {
/* match an active association */
@ -1556,8 +1559,8 @@ nvmet_fc_ls_disconnect(struct nvmet_fc_tgtport *tgtport,
nvmet_fc_format_rsp_hdr(acc, FCNVME_LS_ACC,
fcnvme_lsdesc_len(
sizeof(struct fcnvme_ls_disconnect_acc)),
FCNVME_LS_DISCONNECT);
sizeof(struct fcnvme_ls_disconnect_assoc_acc)),
FCNVME_LS_DISCONNECT_ASSOC);
/* release get taken in nvmet_fc_find_target_assoc */
nvmet_fc_tgt_a_put(iod->assoc);
@ -1632,7 +1635,7 @@ nvmet_fc_handle_ls_rqst(struct nvmet_fc_tgtport *tgtport,
/* Creates an IO Queue/Connection */
nvmet_fc_ls_create_connection(tgtport, iod);
break;
case FCNVME_LS_DISCONNECT:
case FCNVME_LS_DISCONNECT_ASSOC:
/* Terminate a Queue/Connection or the Association */
nvmet_fc_ls_disconnect(tgtport, iod);
break;
@ -2015,7 +2018,7 @@ nvmet_fc_fod_op_done(struct nvmet_fc_fcp_iod *fod)
}
/* data transfer complete, resume with nvmet layer */
nvmet_req_execute(&fod->req);
fod->req.execute(&fod->req);
break;
case NVMET_FCOP_READDATA:
@ -2231,7 +2234,7 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
* can invoke the nvmet_layer now. If read data, cmd completion will
* push the data
*/
nvmet_req_execute(&fod->req);
fod->req.execute(&fod->req);
return;
transport_error:
@ -2299,7 +2302,7 @@ nvmet_fc_rcv_fcp_req(struct nvmet_fc_target_port *target_port,
/* validate iu, so the connection id can be used to find the queue */
if ((cmdiubuf_len != sizeof(*cmdiu)) ||
(cmdiu->scsi_id != NVME_CMD_SCSI_ID) ||
(cmdiu->format_id != NVME_CMD_FORMAT_ID) ||
(cmdiu->fc_id != NVME_CMD_FC_ID) ||
(be16_to_cpu(cmdiu->iu_len) != (sizeof(*cmdiu)/4)))
return -EIO;

43
drivers/nvme/target/io-cmd-bdev.c
View File

@ -147,8 +147,12 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
int sg_cnt = req->sg_cnt;
struct bio *bio;
struct scatterlist *sg;
struct blk_plug plug;
sector_t sector;
int op, op_flags = 0, i;
int op, i;
if (!nvmet_check_data_len(req, nvmet_rw_len(req)))
return;
if (!req->sg_cnt) {
nvmet_req_complete(req, 0);
@ -156,21 +160,20 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
}
if (req->cmd->rw.opcode == nvme_cmd_write) {
op = REQ_OP_WRITE;
op_flags = REQ_SYNC | REQ_IDLE;
op = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE;
if (req->cmd->rw.control & cpu_to_le16(NVME_RW_FUA))
op_flags |= REQ_FUA;
op |= REQ_FUA;
} else {
op = REQ_OP_READ;
}
if (is_pci_p2pdma_page(sg_page(req->sg)))
op_flags |= REQ_NOMERGE;
op |= REQ_NOMERGE;
sector = le64_to_cpu(req->cmd->rw.slba);
sector <<= (req->ns->blksize_shift - 9);
if (req->data_len <= NVMET_MAX_INLINE_DATA_LEN) {
if (req->transfer_len <= NVMET_MAX_INLINE_DATA_LEN) {
bio = &req->b.inline_bio;
bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
} else {
@ -180,8 +183,9 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
bio->bi_iter.bi_sector = sector;
bio->bi_private = req;
bio->bi_end_io = nvmet_bio_done;
bio_set_op_attrs(bio, op, op_flags);
bio->bi_opf = op;
blk_start_plug(&plug);
for_each_sg(req->sg, sg, req->sg_cnt, i) {
while (bio_add_page(bio, sg_page(sg), sg->length, sg->offset)
!= sg->length) {
@ -190,7 +194,7 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
bio = bio_alloc(GFP_KERNEL, min(sg_cnt, BIO_MAX_PAGES));
bio_set_dev(bio, req->ns->bdev);
bio->bi_iter.bi_sector = sector;
bio_set_op_attrs(bio, op, op_flags);
bio->bi_opf = op;
bio_chain(bio, prev);
submit_bio(prev);
@ -201,12 +205,16 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
}
submit_bio(bio);
blk_finish_plug(&plug);
}
static void nvmet_bdev_execute_flush(struct nvmet_req *req)
{
struct bio *bio = &req->b.inline_bio;
if (!nvmet_check_data_len(req, 0))
return;
bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
bio_set_dev(bio, req->ns->bdev);
bio->bi_private = req;
@ -261,12 +269,10 @@ static void nvmet_bdev_execute_discard(struct nvmet_req *req)
if (bio) {
bio->bi_private = req;
bio->bi_end_io = nvmet_bio_done;
if (status) {
bio->bi_status = BLK_STS_IOERR;
bio_endio(bio);
} else {
if (status)
bio_io_error(bio);
else
submit_bio(bio);
}
} else {
nvmet_req_complete(req, status);
}
@ -274,6 +280,9 @@ static void nvmet_bdev_execute_discard(struct nvmet_req *req)
static void nvmet_bdev_execute_dsm(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, nvmet_dsm_len(req)))
return;
switch (le32_to_cpu(req->cmd->dsm.attributes)) {
case NVME_DSMGMT_AD:
nvmet_bdev_execute_discard(req);
@ -295,6 +304,9 @@ static void nvmet_bdev_execute_write_zeroes(struct nvmet_req *req)
sector_t nr_sector;
int ret;
if (!nvmet_check_data_len(req, 0))
return;
sector = le64_to_cpu(write_zeroes->slba) <<
(req->ns->blksize_shift - 9);
nr_sector = (((sector_t)le16_to_cpu(write_zeroes->length) + 1) <<
@ -319,20 +331,15 @@ u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req)
case nvme_cmd_read:
case nvme_cmd_write:
req->execute = nvmet_bdev_execute_rw;
req->data_len = nvmet_rw_len(req);
return 0;
case nvme_cmd_flush:
req->execute = nvmet_bdev_execute_flush;
req->data_len = 0;
return 0;
case nvme_cmd_dsm:
req->execute = nvmet_bdev_execute_dsm;
req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *
sizeof(struct nvme_dsm_range);
return 0;
case nvme_cmd_write_zeroes:
req->execute = nvmet_bdev_execute_write_zeroes;
req->data_len = 0;
return 0;
default:
pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode,

20
drivers/nvme/target/io-cmd-file.c
View File

@ -126,7 +126,7 @@ static void nvmet_file_io_done(struct kiocb *iocb, long ret, long ret2)
mempool_free(req->f.bvec, req->ns->bvec_pool);
}
if (unlikely(ret != req->data_len))
if (unlikely(ret != req->transfer_len))
status = errno_to_nvme_status(req, ret);
nvmet_req_complete(req, status);
}
@ -146,7 +146,7 @@ static bool nvmet_file_execute_io(struct nvmet_req *req, int ki_flags)
is_sync = true;
pos = le64_to_cpu(req->cmd->rw.slba) << req->ns->blksize_shift;
if (unlikely(pos + req->data_len > req->ns->size)) {
if (unlikely(pos + req->transfer_len > req->ns->size)) {
nvmet_req_complete(req, errno_to_nvme_status(req, -ENOSPC));
return true;
}
@ -173,7 +173,7 @@ static bool nvmet_file_execute_io(struct nvmet_req *req, int ki_flags)
nr_bvec--;
}
if (WARN_ON_ONCE(total_len != req->data_len)) {
if (WARN_ON_ONCE(total_len != req->transfer_len)) {
ret = -EIO;
goto complete;
}
@ -232,6 +232,9 @@ static void nvmet_file_execute_rw(struct nvmet_req *req)
{
ssize_t nr_bvec = req->sg_cnt;
if (!nvmet_check_data_len(req, nvmet_rw_len(req)))
return;
if (!req->sg_cnt || !nr_bvec) {
nvmet_req_complete(req, 0);
return;
@ -273,6 +276,8 @@ static void nvmet_file_flush_work(struct work_struct *w)
static void nvmet_file_execute_flush(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, 0))
return;
INIT_WORK(&req->f.work, nvmet_file_flush_work);
schedule_work(&req->f.work);
}
@ -331,6 +336,8 @@ static void nvmet_file_dsm_work(struct work_struct *w)
static void nvmet_file_execute_dsm(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, nvmet_dsm_len(req)))
return;
INIT_WORK(&req->f.work, nvmet_file_dsm_work);
schedule_work(&req->f.work);
}
@ -359,6 +366,8 @@ static void nvmet_file_write_zeroes_work(struct work_struct *w)
static void nvmet_file_execute_write_zeroes(struct nvmet_req *req)
{
if (!nvmet_check_data_len(req, 0))
return;
INIT_WORK(&req->f.work, nvmet_file_write_zeroes_work);
schedule_work(&req->f.work);
}
@ -371,20 +380,15 @@ u16 nvmet_file_parse_io_cmd(struct nvmet_req *req)
case nvme_cmd_read:
case nvme_cmd_write:
req->execute = nvmet_file_execute_rw;
req->data_len = nvmet_rw_len(req);
return 0;
case nvme_cmd_flush:
req->execute = nvmet_file_execute_flush;
req->data_len = 0;
return 0;
case nvme_cmd_dsm:
req->execute = nvmet_file_execute_dsm;
req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *
sizeof(struct nvme_dsm_range);
return 0;
case nvme_cmd_write_zeroes:
req->execute = nvmet_file_execute_write_zeroes;
req->data_len = 0;
return 0;
default:
pr_err("unhandled cmd for file ns %d on qid %d\n",

7
drivers/nvme/target/loop.c
View File

@ -76,7 +76,6 @@ static void nvme_loop_complete_rq(struct request *req)
{
struct nvme_loop_iod *iod = blk_mq_rq_to_pdu(req);
nvme_cleanup_cmd(req);
sg_free_table_chained(&iod->sg_table, SG_CHUNK_SIZE);
nvme_complete_rq(req);
}
@ -102,8 +101,8 @@ static void nvme_loop_queue_response(struct nvmet_req *req)
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
if (unlikely(nvme_loop_queue_idx(queue) == 0 &&
cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
if (unlikely(nvme_is_aen_req(nvme_loop_queue_idx(queue),
cqe->command_id))) {
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
} else {
@ -126,7 +125,7 @@ static void nvme_loop_execute_work(struct work_struct *work)
struct nvme_loop_iod *iod =
container_of(work, struct nvme_loop_iod, work);
nvmet_req_execute(&iod->req);
iod->req.execute(&iod->req);
}
static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,

10
drivers/nvme/target/nvmet.h
View File

@ -304,8 +304,6 @@ struct nvmet_req {
} f;
};
int sg_cnt;
/* data length as parsed from the command: */
size_t data_len;
/* data length as parsed from the SGL descriptor: */
size_t transfer_len;
@ -375,7 +373,7 @@ u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req);
bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
struct nvmet_sq *sq, const struct nvmet_fabrics_ops *ops);
void nvmet_req_uninit(struct nvmet_req *req);
void nvmet_req_execute(struct nvmet_req *req);
bool nvmet_check_data_len(struct nvmet_req *req, size_t data_len);
void nvmet_req_complete(struct nvmet_req *req, u16 status);
int nvmet_req_alloc_sgl(struct nvmet_req *req);
void nvmet_req_free_sgl(struct nvmet_req *req);
@ -495,6 +493,12 @@ static inline u32 nvmet_rw_len(struct nvmet_req *req)
req->ns->blksize_shift;
}
static inline u32 nvmet_dsm_len(struct nvmet_req *req)
{
return (le32_to_cpu(req->cmd->dsm.nr) + 1) *
sizeof(struct nvme_dsm_range);
}
u16 errno_to_nvme_status(struct nvmet_req *req, int errno);
/* Convert a 32-bit number to a 16-bit 0's based number */

8
drivers/nvme/target/rdma.c
View File

@ -603,7 +603,7 @@ static void nvmet_rdma_read_data_done(struct ib_cq *cq, struct ib_wc *wc)
return;
}
nvmet_req_execute(&rsp->req);
rsp->req.execute(&rsp->req);
}
static void nvmet_rdma_use_inline_sg(struct nvmet_rdma_rsp *rsp, u32 len,
@ -672,13 +672,13 @@ static u16 nvmet_rdma_map_sgl_keyed(struct nvmet_rdma_rsp *rsp,
return 0;
ret = nvmet_req_alloc_sgl(&rsp->req);
if (ret < 0)
if (unlikely(ret < 0))
goto error_out;
ret = rdma_rw_ctx_init(&rsp->rw, cm_id->qp, cm_id->port_num,
rsp->req.sg, rsp->req.sg_cnt, 0, addr, key,
nvmet_data_dir(&rsp->req));
if (ret < 0)
if (unlikely(ret < 0))
goto error_out;
rsp->n_rdma += ret;
@ -746,7 +746,7 @@ static bool nvmet_rdma_execute_command(struct nvmet_rdma_rsp *rsp)
queue->cm_id->port_num, &rsp->read_cqe, NULL))
nvmet_req_complete(&rsp->req, NVME_SC_DATA_XFER_ERROR);
} else {
nvmet_req_execute(&rsp->req);
rsp->req.execute(&rsp->req);
}
return true;

14
drivers/nvme/target/tcp.c
View File

@ -320,7 +320,7 @@ static int nvmet_tcp_map_data(struct nvmet_tcp_cmd *cmd)
struct nvme_sgl_desc *sgl = &cmd->req.cmd->common.dptr.sgl;
u32 len = le32_to_cpu(sgl->length);
if (!cmd->req.data_len)
if (!len)
return 0;
if (sgl->type == ((NVME_SGL_FMT_DATA_DESC << 4) |
@ -813,13 +813,11 @@ free_crypto:
static void nvmet_tcp_handle_req_failure(struct nvmet_tcp_queue *queue,
struct nvmet_tcp_cmd *cmd, struct nvmet_req *req)
{
size_t data_len = le32_to_cpu(req->cmd->common.dptr.sgl.length);
int ret;
/* recover the expected data transfer length */
req->data_len = le32_to_cpu(req->cmd->common.dptr.sgl.length);
if (!nvme_is_write(cmd->req.cmd) ||
req->data_len > cmd->req.port->inline_data_size) {
data_len > cmd->req.port->inline_data_size) {
nvmet_prepare_receive_pdu(queue);
return;
}
@ -932,7 +930,7 @@ static int nvmet_tcp_done_recv_pdu(struct nvmet_tcp_queue *queue)
goto out;
}
nvmet_req_execute(&queue->cmd->req);
queue->cmd->req.execute(&queue->cmd->req);
out:
nvmet_prepare_receive_pdu(queue);
return ret;
@ -1052,7 +1050,7 @@ static int nvmet_tcp_try_recv_data(struct nvmet_tcp_queue *queue)
nvmet_tcp_prep_recv_ddgst(cmd);
return 0;
}
nvmet_req_execute(&cmd->req);
cmd->req.execute(&cmd->req);
}
nvmet_prepare_receive_pdu(queue);
@ -1092,7 +1090,7 @@ static int nvmet_tcp_try_recv_ddgst(struct nvmet_tcp_queue *queue)
if (!(cmd->flags & NVMET_TCP_F_INIT_FAILED) &&
cmd->rbytes_done == cmd->req.transfer_len)
nvmet_req_execute(&cmd->req);
cmd->req.execute(&cmd->req);
ret = 0;
out:
nvmet_prepare_receive_pdu(queue);

178
include/linux/nvme-fc.h
View File

@ -4,33 +4,60 @@
*/
/*
* This file contains definitions relative to FC-NVME r1.14 (16-020vB).
* The fcnvme_lsdesc_cr_assoc_cmd struct reflects expected r1.16 content.
* This file contains definitions relative to FC-NVME-2 r1.06
* (T11-2019-00210-v001).
*/
#ifndef _NVME_FC_H
#define _NVME_FC_H 1
#include <uapi/scsi/fc/fc_fs.h>
#define NVME_CMD_SCSI_ID 0xFD
#define NVME_CMD_FORMAT_ID 0xFD
#define NVME_CMD_FC_ID FC_TYPE_NVME
/* FC-NVME Cmd IU Flags */
#define FCNVME_CMD_FLAGS_DIRMASK 0x03
#define FCNVME_CMD_FLAGS_WRITE 0x01
#define FCNVME_CMD_FLAGS_READ 0x02
enum {
FCNVME_CMD_FLAGS_DIRMASK = 0x03,
FCNVME_CMD_FLAGS_WRITE = (1 << 0),
FCNVME_CMD_FLAGS_READ = (1 << 1),
FCNVME_CMD_FLAGS_PICWP = (1 << 2),
};
enum {
FCNVME_CMD_CAT_MASK = 0x0F,
FCNVME_CMD_CAT_ADMINQ = 0x01,
FCNVME_CMD_CAT_CSSMASK = 0x07,
FCNVME_CMD_CAT_CSSFLAG = 0x08,
};
static inline __u8 fccmnd_set_cat_admin(__u8 rsv_cat)
{
return (rsv_cat & ~FCNVME_CMD_CAT_MASK) | FCNVME_CMD_CAT_ADMINQ;
}
static inline __u8 fccmnd_set_cat_css(__u8 rsv_cat, __u8 css)
{
return (rsv_cat & ~FCNVME_CMD_CAT_MASK) | FCNVME_CMD_CAT_CSSFLAG |
(css & FCNVME_CMD_CAT_CSSMASK);
}
struct nvme_fc_cmd_iu {
__u8 scsi_id;
__u8 format_id;
__u8 fc_id;
__be16 iu_len;
__u8 rsvd4[3];
__u8 rsvd4[2];
__u8 rsv_cat;
__u8 flags;
__be64 connection_id;
__be32 csn;
__be32 data_len;
struct nvme_command sqe;
__be32 rsvd88[2];
__u8 dps;
__u8 lbads;
__be16 ms;
__be32 rsvd92;
};
#define NVME_FC_SIZEOF_ZEROS_RSP 12
@ -38,11 +65,12 @@ struct nvme_fc_cmd_iu {
enum {
FCNVME_SC_SUCCESS = 0,
FCNVME_SC_INVALID_FIELD = 1,
FCNVME_SC_INVALID_CONNID = 2,
/* reserved 2 */
FCNVME_SC_ILL_CONN_PARAMS = 3,
};
struct nvme_fc_ersp_iu {
__u8 status_code;
__u8 ersp_result;
__u8 rsvd1;
__be16 iu_len;
__be32 rsn;
@ -53,14 +81,44 @@ struct nvme_fc_ersp_iu {
};
/* FC-NVME Link Services */
#define FCNVME_NVME_SR_OPCODE 0x01
struct nvme_fc_nvme_sr_iu {
__u8 fc_id;
__u8 opcode;
__u8 rsvd2;
__u8 retry_rctl;
__be32 rsvd4;
};
enum {
FCNVME_SRSTAT_ACC = 0x0,
FCNVME_SRSTAT_INV_FCID = 0x1,
/* reserved 0x2 */
FCNVME_SRSTAT_LOGICAL_ERR = 0x3,
FCNVME_SRSTAT_INV_QUALIF = 0x4,
FCNVME_SRSTAT_UNABL2PERFORM = 0x9,
};
struct nvme_fc_nvme_sr_rsp_iu {
__u8 fc_id;
__u8 opcode;
__u8 rsvd2;
__u8 status;
__be32 rsvd4;
};
/* FC-NVME Link Services - LS cmd values (w0 bits 31:24) */
enum {
FCNVME_LS_RSVD = 0,
FCNVME_LS_RJT = 1,
FCNVME_LS_ACC = 2,
FCNVME_LS_CREATE_ASSOCIATION = 3,
FCNVME_LS_CREATE_CONNECTION = 4,
FCNVME_LS_DISCONNECT = 5,
FCNVME_LS_CREATE_ASSOCIATION = 3, /* Create Association */
FCNVME_LS_CREATE_CONNECTION = 4, /* Create I/O Connection */
FCNVME_LS_DISCONNECT_ASSOC = 5, /* Disconnect Association */
FCNVME_LS_DISCONNECT_CONN = 6, /* Disconnect Connection */
};
/* FC-NVME Link Service Descriptors */
@ -117,15 +175,18 @@ enum fcnvme_ls_rjt_reason {
FCNVME_RJT_RC_UNSUP = 0x0b,
/* command not supported */
FCNVME_RJT_RC_INPROG = 0x0e,
/* command already in progress */
FCNVME_RJT_RC_INV_ASSOC = 0x40,
/* Invalid Association ID */
FCNVME_RJT_RC_INV_CONN = 0x41,
/* Invalid Connection ID */
FCNVME_RJT_RC_INV_PARAM = 0x42,
/* Invalid Parameters */
FCNVME_RJT_RC_INSUF_RES = 0x43,
/* Insufficient Resources */
FCNVME_RJT_RC_VENDOR = 0xff,
/* vendor specific error */
};
@ -138,14 +199,32 @@ enum fcnvme_ls_rjt_explan {
FCNVME_RJT_EXP_OXID_RXID = 0x17,
/* invalid OX_ID-RX_ID combination */
FCNVME_RJT_EXP_INSUF_RES = 0x29,
/* insufficient resources */
FCNVME_RJT_EXP_UNAB_DATA = 0x2a,
/* unable to supply requested data */
FCNVME_RJT_EXP_INV_LEN = 0x2d,
/* Invalid payload length */
FCNVME_RJT_EXP_INV_ERSP_RAT = 0x40,
/* Invalid NVMe_ERSP Ratio */
FCNVME_RJT_EXP_INV_CTLR_ID = 0x41,
/* Invalid Controller ID */
FCNVME_RJT_EXP_INV_QUEUE_ID = 0x42,
/* Invalid Queue ID */
FCNVME_RJT_EXP_INV_SQSIZE = 0x43,
/* Invalid Submission Queue Size */
FCNVME_RJT_EXP_INV_HOSTID = 0x44,
/* Invalid HOST ID */
FCNVME_RJT_EXP_INV_HOSTNQN = 0x45,
/* Invalid HOSTNQN */
FCNVME_RJT_EXP_INV_SUBNQN = 0x46,
/* Invalid SUBNQN */
};
/* FCNVME_LSDESC_RJT */
@ -209,21 +288,11 @@ struct fcnvme_lsdesc_cr_conn_cmd {
__be32 rsvd52;
};
/* Disconnect Scope Values */
enum {
FCNVME_DISCONN_ASSOCIATION = 0,
FCNVME_DISCONN_CONNECTION = 1,
};
/* FCNVME_LSDESC_DISCONN_CMD */
struct fcnvme_lsdesc_disconn_cmd {
__be32 desc_tag; /* FCNVME_LSDESC_xxx */
__be32 desc_len;
u8 rsvd8[3];
/* note: scope is really a 1 bit field */
u8 scope; /* FCNVME_DISCONN_xxx */
__be32 rsvd12;
__be64 id;
__be32 rsvd8[4];
};
/* FCNVME_LSDESC_CONN_ID */
@ -242,9 +311,14 @@ struct fcnvme_lsdesc_assoc_id {
/* r_ctl values */
enum {
FCNVME_RS_RCTL_DATA = 1,
FCNVME_RS_RCTL_XFER_RDY = 5,
FCNVME_RS_RCTL_RSP = 8,
FCNVME_RS_RCTL_CMND = 0x6,
FCNVME_RS_RCTL_DATA = 0x1,
FCNVME_RS_RCTL_CONF = 0x3,
FCNVME_RS_RCTL_SR = 0x9,
FCNVME_RS_RCTL_XFER_RDY = 0x5,
FCNVME_RS_RCTL_RSP = 0x7,
FCNVME_RS_RCTL_ERSP = 0x8,
FCNVME_RS_RCTL_SR_RSP = 0xA,
};
@ -264,7 +338,10 @@ struct fcnvme_ls_acc_hdr {
struct fcnvme_ls_rqst_w0 w0;
__be32 desc_list_len;
struct fcnvme_lsdesc_rqst rqst;
/* Followed by cmd-specific ACC descriptors, see next definitions */
/*
* Followed by cmd-specific ACCEPT descriptors, see xxx_acc
* definitions below
*/
};
/* FCNVME_LS_CREATE_ASSOCIATION */
@ -302,25 +379,39 @@ struct fcnvme_ls_cr_conn_acc {
struct fcnvme_lsdesc_conn_id connectid;
};
/* FCNVME_LS_DISCONNECT */
struct fcnvme_ls_disconnect_rqst {
/* FCNVME_LS_DISCONNECT_ASSOC */
struct fcnvme_ls_disconnect_assoc_rqst {
struct fcnvme_ls_rqst_w0 w0;
__be32 desc_list_len;
struct fcnvme_lsdesc_assoc_id associd;
struct fcnvme_lsdesc_disconn_cmd discon_cmd;
};
struct fcnvme_ls_disconnect_acc {
struct fcnvme_ls_disconnect_assoc_acc {
struct fcnvme_ls_acc_hdr hdr;
};
/* FCNVME_LS_DISCONNECT_CONN */
struct fcnvme_ls_disconnect_conn_rqst {
struct fcnvme_ls_rqst_w0 w0;
__be32 desc_list_len;
struct fcnvme_lsdesc_assoc_id associd;
struct fcnvme_lsdesc_disconn_cmd connectid;
};
struct fcnvme_ls_disconnect_conn_acc {
struct fcnvme_ls_acc_hdr hdr;
};
/*
* Yet to be defined in FC-NVME:
* Default R_A_TOV is pulled in from fc_fs.h but needs conversion
* from ms to seconds for our use.
*/
#define NVME_FC_CONNECT_TIMEOUT_SEC 2 /* 2 seconds */
#define NVME_FC_LS_TIMEOUT_SEC 2 /* 2 seconds */
#define NVME_FC_TGTOP_TIMEOUT_SEC 2 /* 2 seconds */
#define FC_TWO_TIMES_R_A_TOV (2 * (FC_DEF_R_A_TOV / 1000))
#define NVME_FC_LS_TIMEOUT_SEC FC_TWO_TIMES_R_A_TOV
#define NVME_FC_TGTOP_TIMEOUT_SEC FC_TWO_TIMES_R_A_TOV
/*
* TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>"
@ -328,6 +419,7 @@ struct fcnvme_ls_disconnect_acc {
* infront of the <16hexdigits>. Without is considered the "min" string
* and with is considered the "max" string. The hexdigits may be upper
* or lower case.
* Note: FC-NVME-2 standard requires a "0x" prefix.
*/
#define NVME_FC_TRADDR_NNLEN 3 /* "?n-" */
#define NVME_FC_TRADDR_OXNNLEN 5 /* "?n-0x" */

52
include/linux/nvme.h
View File

@ -109,6 +109,20 @@ enum {
NVME_REG_ACQ = 0x0030, /* Admin CQ Base Address */
NVME_REG_CMBLOC = 0x0038, /* Controller Memory Buffer Location */
NVME_REG_CMBSZ = 0x003c, /* Controller Memory Buffer Size */
NVME_REG_BPINFO = 0x0040, /* Boot Partition Information */
NVME_REG_BPRSEL = 0x0044, /* Boot Partition Read Select */
NVME_REG_BPMBL = 0x0048, /* Boot Partition Memory Buffer
* Location
*/
NVME_REG_PMRCAP = 0x0e00, /* Persistent Memory Capabilities */
NVME_REG_PMRCTL = 0x0e04, /* Persistent Memory Region Control */
NVME_REG_PMRSTS = 0x0e08, /* Persistent Memory Region Status */
NVME_REG_PMREBS = 0x0e0c, /* Persistent Memory Region Elasticity
* Buffer Size
*/
NVME_REG_PMRSWTP = 0x0e10, /* Persistent Memory Region Sustained
* Write Throughput
*/
NVME_REG_DBS = 0x1000, /* SQ 0 Tail Doorbell */
};
@ -295,6 +309,14 @@ enum {
NVME_CTRL_OACS_DIRECTIVES = 1 << 5,
NVME_CTRL_OACS_DBBUF_SUPP = 1 << 8,
NVME_CTRL_LPA_CMD_EFFECTS_LOG = 1 << 1,
NVME_CTRL_CTRATT_128_ID = 1 << 0,
NVME_CTRL_CTRATT_NON_OP_PSP = 1 << 1,
NVME_CTRL_CTRATT_NVM_SETS = 1 << 2,
NVME_CTRL_CTRATT_READ_RECV_LVLS = 1 << 3,
NVME_CTRL_CTRATT_ENDURANCE_GROUPS = 1 << 4,
NVME_CTRL_CTRATT_PREDICTABLE_LAT = 1 << 5,
NVME_CTRL_CTRATT_NAMESPACE_GRANULARITY = 1 << 7,
NVME_CTRL_CTRATT_UUID_LIST = 1 << 9,
};
struct nvme_lbaf {
@ -352,6 +374,9 @@ enum {
NVME_ID_CNS_NS_PRESENT = 0x11,
NVME_ID_CNS_CTRL_NS_LIST = 0x12,
NVME_ID_CNS_CTRL_LIST = 0x13,
NVME_ID_CNS_SCNDRY_CTRL_LIST = 0x15,
NVME_ID_CNS_NS_GRANULARITY = 0x16,
NVME_ID_CNS_UUID_LIST = 0x17,
};
enum {
@ -409,7 +434,8 @@ struct nvme_smart_log {
__u8 avail_spare;
__u8 spare_thresh;
__u8 percent_used;
__u8 rsvd6[26];
__u8 endu_grp_crit_warn_sumry;
__u8 rsvd7[25];
__u8 data_units_read[16];
__u8 data_units_written[16];
__u8 host_reads[16];
@ -423,7 +449,11 @@ struct nvme_smart_log {
__le32 warning_temp_time;
__le32 critical_comp_time;
__le16 temp_sensor[8];
__u8 rsvd216[296];
__le32 thm_temp1_trans_count;
__le32 thm_temp2_trans_count;
__le32 thm_temp1_total_time;
__le32 thm_temp2_total_time;
__u8 rsvd232[280];
};
struct nvme_fw_slot_info_log {
@ -440,6 +470,7 @@ enum {
NVME_CMD_EFFECTS_NIC = 1 << 3,
NVME_CMD_EFFECTS_CCC = 1 << 4,
NVME_CMD_EFFECTS_CSE_MASK = 3 << 16,
NVME_CMD_EFFECTS_UUID_SEL = 1 << 19,
};
struct nvme_effects_log {
@ -563,6 +594,7 @@ enum nvme_opcode {
nvme_cmd_compare = 0x05,
nvme_cmd_write_zeroes = 0x08,
nvme_cmd_dsm = 0x09,
nvme_cmd_verify = 0x0c,
nvme_cmd_resv_register = 0x0d,
nvme_cmd_resv_report = 0x0e,
nvme_cmd_resv_acquire = 0x11,
@ -806,10 +838,14 @@ enum nvme_admin_opcode {
nvme_admin_ns_mgmt = 0x0d,
nvme_admin_activate_fw = 0x10,
nvme_admin_download_fw = 0x11,
nvme_admin_dev_self_test = 0x14,
nvme_admin_ns_attach = 0x15,
nvme_admin_keep_alive = 0x18,
nvme_admin_directive_send = 0x19,
nvme_admin_directive_recv = 0x1a,
nvme_admin_virtual_mgmt = 0x1c,
nvme_admin_nvme_mi_send = 0x1d,
nvme_admin_nvme_mi_recv = 0x1e,
nvme_admin_dbbuf = 0x7C,
nvme_admin_format_nvm = 0x80,
nvme_admin_security_send = 0x81,
@ -873,6 +909,7 @@ enum {
NVME_FEAT_PLM_CONFIG = 0x13,
NVME_FEAT_PLM_WINDOW = 0x14,
NVME_FEAT_HOST_BEHAVIOR = 0x16,
NVME_FEAT_SANITIZE = 0x17,
NVME_FEAT_SW_PROGRESS = 0x80,
NVME_FEAT_HOST_ID = 0x81,
NVME_FEAT_RESV_MASK = 0x82,
@ -883,6 +920,10 @@ enum {
NVME_LOG_FW_SLOT = 0x03,
NVME_LOG_CHANGED_NS = 0x04,
NVME_LOG_CMD_EFFECTS = 0x05,
NVME_LOG_DEVICE_SELF_TEST = 0x06,
NVME_LOG_TELEMETRY_HOST = 0x07,
NVME_LOG_TELEMETRY_CTRL = 0x08,
NVME_LOG_ENDURANCE_GROUP = 0x09,
NVME_LOG_ANA = 0x0c,
NVME_LOG_DISC = 0x70,
NVME_LOG_RESERVATION = 0x80,
@ -1290,7 +1331,11 @@ enum {
NVME_SC_SGL_INVALID_OFFSET = 0x16,
NVME_SC_SGL_INVALID_SUBTYPE = 0x17,
NVME_SC_SANITIZE_FAILED = 0x1C,
NVME_SC_SANITIZE_IN_PROGRESS = 0x1D,
NVME_SC_NS_WRITE_PROTECTED = 0x20,
NVME_SC_CMD_INTERRUPTED = 0x21,
NVME_SC_LBA_RANGE = 0x80,
NVME_SC_CAP_EXCEEDED = 0x81,
@ -1328,6 +1373,8 @@ enum {
NVME_SC_NS_NOT_ATTACHED = 0x11a,
NVME_SC_THIN_PROV_NOT_SUPP = 0x11b,
NVME_SC_CTRL_LIST_INVALID = 0x11c,
NVME_SC_BP_WRITE_PROHIBITED = 0x11e,
NVME_SC_PMR_SAN_PROHIBITED = 0x123,
/*
* I/O Command Set Specific - NVM commands:
@ -1368,6 +1415,7 @@ enum {
NVME_SC_ANA_INACCESSIBLE = 0x302,
NVME_SC_ANA_TRANSITION = 0x303,
NVME_SC_HOST_PATH_ERROR = 0x370,
NVME_SC_HOST_ABORTED_CMD = 0x371,
NVME_SC_CRD = 0x1800,
NVME_SC_DNR = 0x4000,