49 	u16             table[] __counted_by(table_len);
75 	 * GID entry is detached from the table.
101 	/* In RoCE, adding a GID to the table requires:
165  * @table:	GID table pointer
166  * @index:	Index to check in GID table
170 static bool is_gid_index_default(const struct ib_gid_table *table,  in is_gid_index_default()  argument
173 	return index < 32 && (BIT(index) & table->default_gid_indices);  in is_gid_index_default()
241 	struct ib_gid_table *table = rdma_gid_table(device, port_num);  in free_gid_entry_locked()  local
246 	write_lock_irq(&table->rwlock);  in free_gid_entry_locked()
249 	 * The only way to avoid overwriting NULL in table is  in free_gid_entry_locked()
250 	 * by comparing if it is same entry in table or not!  in free_gid_entry_locked()
251 	 * If new entry in table is added by the time we free here,  in free_gid_entry_locked()
252 	 * don't overwrite the table entry.  in free_gid_entry_locked()
254 	if (entry == table->data_vec[entry->attr.index])  in free_gid_entry_locked()
255 		table->data_vec[entry->attr.index] = NULL;  in free_gid_entry_locked()
257 	write_unlock_irq(&table->rwlock);  in free_gid_entry_locked()
277  * free_gid_work() frees the entry from the HCA's hardware table
286 	struct ib_gid_table *table = rdma_gid_table(device, port_num);  in free_gid_work()  local
288 	mutex_lock(&table->lock);  in free_gid_work()
290 	mutex_unlock(&table->lock);  in free_gid_work()
320 static void store_gid_entry(struct ib_gid_table *table,  in store_gid_entry()  argument
329 	lockdep_assert_held(&table->lock);  in store_gid_entry()
330 	write_lock_irq(&table->rwlock);  in store_gid_entry()
331 	table->data_vec[entry->attr.index] = entry;  in store_gid_entry()
332 	write_unlock_irq(&table->rwlock);  in store_gid_entry()
373  * del_gid - Delete GID table entry
377  * @table:	GID table of the IB device for a port
382 		    struct ib_gid_table *table, int ix)  in del_gid()  argument
387 	lockdep_assert_held(&table->lock);  in del_gid()
390 		ix, table->data_vec[ix]->attr.gid.raw);  in del_gid()
392 	write_lock_irq(&table->rwlock);  in del_gid()
393 	entry = table->data_vec[ix];  in del_gid()
399 		table->data_vec[ix] = NULL;  in del_gid()
400 	write_unlock_irq(&table->rwlock);  in del_gid()
416  * add_modify_gid - Add or modify GID table entry
418  * @table:	GID table in which GID to be added or modified
425 static int add_modify_gid(struct ib_gid_table *table,  in add_modify_gid()  argument
432 	 * Invalidate any old entry in the table to make it safe to write to  in add_modify_gid()
435 	if (is_gid_entry_valid(table->data_vec[attr->index]))  in add_modify_gid()
436 		del_gid(attr->device, attr->port_num, table, attr->index);  in add_modify_gid()
441 	 * empty table entries instead of storing them.  in add_modify_gid()
456 	store_gid_entry(table, entry);  in add_modify_gid()
465 static int find_gid(struct ib_gid_table *table, const union ib_gid *gid,  in find_gid()  argument
473 	while (i < table->sz && (found < 0 || empty < 0)) {  in find_gid()
474 		struct ib_gid_table_entry *data = table->data_vec[i];  in find_gid()
488 				is_gid_index_default(table, curr_index)) {  in find_gid()
527 		    is_gid_index_default(table, curr_index) != default_gid)  in find_gid()
549 	struct ib_gid_table *table;  in __ib_cache_gid_add()  local
561 	table = rdma_gid_table(ib_dev, port);  in __ib_cache_gid_add()
563 	mutex_lock(&table->lock);  in __ib_cache_gid_add()
565 	ix = find_gid(table, gid, attr, default_gid, mask, &empty);  in __ib_cache_gid_add()
577 	ret = add_modify_gid(table, attr);  in __ib_cache_gid_add()
582 	mutex_unlock(&table->lock);  in __ib_cache_gid_add()
604 	struct ib_gid_table *table;  in _ib_cache_gid_del()  local
608 	table = rdma_gid_table(ib_dev, port);  in _ib_cache_gid_del()
610 	mutex_lock(&table->lock);  in _ib_cache_gid_del()
612 	ix = find_gid(table, gid, attr, default_gid, mask, NULL);  in _ib_cache_gid_del()
618 	del_gid(ib_dev, port, table, ix);  in _ib_cache_gid_del()
622 	mutex_unlock(&table->lock);  in _ib_cache_gid_del()
643 	struct ib_gid_table *table;  in ib_cache_gid_del_all_netdev_gids()  local
647 	table = rdma_gid_table(ib_dev, port);  in ib_cache_gid_del_all_netdev_gids()
649 	mutex_lock(&table->lock);  in ib_cache_gid_del_all_netdev_gids()
651 	for (ix = 0; ix < table->sz; ix++) {  in ib_cache_gid_del_all_netdev_gids()
652 		if (is_gid_entry_valid(table->data_vec[ix]) &&  in ib_cache_gid_del_all_netdev_gids()
653 		    table->data_vec[ix]->attr.ndev == ndev) {  in ib_cache_gid_del_all_netdev_gids()
654 			del_gid(ib_dev, port, table, ix);  in ib_cache_gid_del_all_netdev_gids()
659 	mutex_unlock(&table->lock);  in ib_cache_gid_del_all_netdev_gids()
688 	struct ib_gid_table *table;  in rdma_find_gid_by_port()  local
698 	table = rdma_gid_table(ib_dev, port);  in rdma_find_gid_by_port()
703 	read_lock_irqsave(&table->rwlock, flags);  in rdma_find_gid_by_port()
704 	local_index = find_gid(table, gid, &val, false, mask, NULL);  in rdma_find_gid_by_port()
706 		get_gid_entry(table->data_vec[local_index]);  in rdma_find_gid_by_port()
707 		attr = &table->data_vec[local_index]->attr;  in rdma_find_gid_by_port()
708 		read_unlock_irqrestore(&table->rwlock, flags);  in rdma_find_gid_by_port()
712 	read_unlock_irqrestore(&table->rwlock, flags);  in rdma_find_gid_by_port()
718  * rdma_find_gid_by_filter - Returns the GID table attribute where a
724  * @filter: The filter function is executed on any matching GID in the table.
726  *   otherwise, we continue searching the GID table. It's guaranteed that
732  * of which the filter function returns true in the port's GID table.
742 	struct ib_gid_table *table;  in rdma_find_gid_by_filter()  local
749 	table = rdma_gid_table(ib_dev, port);  in rdma_find_gid_by_filter()
751 	read_lock_irqsave(&table->rwlock, flags);  in rdma_find_gid_by_filter()
752 	for (i = 0; i < table->sz; i++) {  in rdma_find_gid_by_filter()
753 		struct ib_gid_table_entry *entry = table->data_vec[i];  in rdma_find_gid_by_filter()
767 	read_unlock_irqrestore(&table->rwlock, flags);  in rdma_find_gid_by_filter()
773 	struct ib_gid_table *table = kzalloc_obj(*table);  in alloc_gid_table()  local
775 	if (!table)  in alloc_gid_table()
778 	table->data_vec = kzalloc_objs(*table->data_vec, sz);  in alloc_gid_table()
779 	if (!table->data_vec)  in alloc_gid_table()
782 	mutex_init(&table->lock);  in alloc_gid_table()
784 	table->sz = sz;  in alloc_gid_table()
785 	rwlock_init(&table->rwlock);  in alloc_gid_table()
786 	return table;  in alloc_gid_table()
789 	kfree(table);  in alloc_gid_table()
794 			      struct ib_gid_table *table)  in release_gid_table()  argument
798 	if (!table)  in release_gid_table()
801 	for (i = 0; i < table->sz; i++) {  in release_gid_table()
802 		if (is_gid_entry_free(table->data_vec[i]))  in release_gid_table()
808 			  kref_read(&table->data_vec[i]->kref));  in release_gid_table()
811 	mutex_destroy(&table->lock);  in release_gid_table()
812 	kfree(table->data_vec);  in release_gid_table()
813 	kfree(table);  in release_gid_table()
817 				   struct ib_gid_table *table)  in cleanup_gid_table_port()  argument
821 	if (!table)  in cleanup_gid_table_port()
824 	mutex_lock(&table->lock);  in cleanup_gid_table_port()
825 	for (i = 0; i < table->sz; ++i) {  in cleanup_gid_table_port()
826 		if (is_gid_entry_valid(table->data_vec[i]))  in cleanup_gid_table_port()
827 			del_gid(ib_dev, port, table, i);  in cleanup_gid_table_port()
829 	mutex_unlock(&table->lock);  in cleanup_gid_table_port()
866 				      struct ib_gid_table *table)  in gid_table_reserve_default()  argument
875 	for (i = 0; i < num_default_gids && i < table->sz; i++)  in gid_table_reserve_default()
876 		table->default_gid_indices |= BIT(i);  in gid_table_reserve_default()
892 	struct ib_gid_table *table;  in _gid_table_setup_one()  local
896 		table = alloc_gid_table(  in _gid_table_setup_one()
898 		if (!table)  in _gid_table_setup_one()
901 		gid_table_reserve_default(ib_dev, rdma_port, table);  in _gid_table_setup_one()
902 		ib_dev->port_data[rdma_port].cache.gid = table;  in _gid_table_setup_one()
945  * @index:		Index of the GID table entry to read
950  * hold any reference to the GID table entry in the HCA or software cache.
958 	struct ib_gid_table *table;  in rdma_query_gid()  local
965 	table = rdma_gid_table(device, port_num);  in rdma_query_gid()
966 	read_lock_irqsave(&table->rwlock, flags);  in rdma_query_gid()
968 	if (index < 0 || index >= table->sz) {  in rdma_query_gid()
973 	if (!is_gid_entry_valid(table->data_vec[index])) {  in rdma_query_gid()
978 	memcpy(gid, &table->data_vec[index]->attr.gid, sizeof(*gid));  in rdma_query_gid()
982 	read_unlock_irqrestore(&table->rwlock, flags);  in rdma_query_gid()
1031 		struct ib_gid_table *table;  in rdma_find_gid()  local
1035 		table = device->port_data[p].cache.gid;  in rdma_find_gid()
1036 		read_lock_irqsave(&table->rwlock, flags);  in rdma_find_gid()
1037 		index = find_gid(table, gid, &gid_attr_val, false, mask, NULL);  in rdma_find_gid()
1041 			get_gid_entry(table->data_vec[index]);  in rdma_find_gid()
1042 			attr = &table->data_vec[index]->attr;  in rdma_find_gid()
1043 			read_unlock_irqrestore(&table->rwlock, flags);  in rdma_find_gid()
1046 		read_unlock_irqrestore(&table->rwlock, flags);  in rdma_find_gid()
1072 		*pkey = cache->table[index];  in ib_get_cached_pkey()
1114 		if ((cache->table[i] & 0x7fff) == (pkey & 0x7fff)) {  in ib_find_cached_pkey()
1115 			if (cache->table[i] & 0x8000) {  in ib_find_cached_pkey()
1175  * @index:		Index of the GID table entry whose attributes are to
1179  * cached GID table. Caller must invoke rdma_put_gid_attr() to release
1189 	struct ib_gid_table *table;  in rdma_get_gid_attr()  local
1195 	table = rdma_gid_table(device, port_num);  in rdma_get_gid_attr()
1196 	if (index < 0 || index >= table->sz)  in rdma_get_gid_attr()
1199 	read_lock_irqsave(&table->rwlock, flags);  in rdma_get_gid_attr()
1200 	if (!is_gid_entry_valid(table->data_vec[index]))  in rdma_get_gid_attr()
1203 	get_gid_entry(table->data_vec[index]);  in rdma_get_gid_attr()
1204 	attr = &table->data_vec[index]->attr;  in rdma_get_gid_attr()
1206 	read_unlock_irqrestore(&table->rwlock, flags);  in rdma_get_gid_attr()
1212  * rdma_query_gid_table - Reads GID table entries of all the ports of a device up to max_entries.
1226 	struct ib_gid_table *table;  in rdma_query_gid_table()  local
1232 		table = rdma_gid_table(device, port_num);  in rdma_query_gid_table()
1233 		read_lock_irqsave(&table->rwlock, flags);  in rdma_query_gid_table()
1234 		for (i = 0; i < table->sz; i++) {  in rdma_query_gid_table()
1235 			if (!is_gid_entry_valid(table->data_vec[i]))  in rdma_query_gid_table()
1242 			gid_attr = &table->data_vec[i]->attr;  in rdma_query_gid_table()
1251 				lockdep_is_held(&table->rwlock));  in rdma_query_gid_table()
1258 		read_unlock_irqrestore(&table->rwlock, flags);  in rdma_query_gid_table()
1263 	read_unlock_irqrestore(&table->rwlock, flags);  in rdma_query_gid_table()
1326 	struct ib_gid_table *table;  in rdma_read_gid_attr_ndev_rcu()  local
1330 	table = rdma_gid_table(device, port_num);  in rdma_read_gid_attr_ndev_rcu()
1332 	read_lock_irqsave(&table->rwlock, flags);  in rdma_read_gid_attr_ndev_rcu()
1333 	valid = is_gid_entry_valid(table->data_vec[attr->index]);  in rdma_read_gid_attr_ndev_rcu()
1339 	read_unlock_irqrestore(&table->rwlock, flags);  in rdma_read_gid_attr_ndev_rcu()
1408 	struct ib_gid_table *table;  in config_non_roce_gid_cache()  local
1414 	table = rdma_gid_table(device, port);  in config_non_roce_gid_cache()
1416 	mutex_lock(&table->lock);  in config_non_roce_gid_cache()
1441 		add_modify_gid(table, &gid_attr);  in config_non_roce_gid_cache()
1444 	mutex_unlock(&table->lock);  in config_non_roce_gid_cache()
1481 		pkey_cache = kmalloc_flex(*pkey_cache, table,  in ib_cache_update()
1492 					    pkey_cache->table + i);  in ib_cache_update()