1 // SPDX-License-Identifier: GPL-2.0-or-later
28  * functions aren't performance sensitive, so this conversion isn't an
37 			return -EINVAL;  in hvcs_convert()
39 			return -EIO;  in hvcs_convert()
47 			return -EBUSY;  in hvcs_convert()
50 			return -EPERM;  in hvcs_convert()
55  * hvcs_free_partner_info - free pi allocated by hvcs_get_partner_info
56  * @head: list_head pointer for an allocated list of partner info structs to
62 int hvcs_free_partner_info(struct list_head *head)  in hvcs_free_partner_info()  argument
67 	if (!head)  in hvcs_free_partner_info()
68 		return -EINVAL;  in hvcs_free_partner_info()
70 	while (!list_empty(head)) {  in hvcs_free_partner_info()
71 		element = head->next;  in hvcs_free_partner_info()
95  * hvcs_get_partner_info - Get all of the partner info for a vty-server adapter
96  * @unit_address: The unit_address of the vty-server adapter for which this
98  * @head: An initialized list_head pointer to an empty list to use to return the
100  * @pi_buff: A page sized buffer pre-allocated prior to calling this function
104  * This function returns non-zero on success, or if there is no partner info.
106  * The pi_buff is pre-allocated prior to calling this function because this
116  * hvcs_free_partner_info() using a pointer to the SAME list head instance
119 int hvcs_get_partner_info(uint32_t unit_address, struct list_head *head,  in hvcs_get_partner_info()  argument
133 	if (!head || !pi_buff)  in hvcs_get_partner_info()
134 		return -EINVAL;  in hvcs_get_partner_info()
138 	INIT_LIST_HEAD(head);  in hvcs_get_partner_info()
145 			 * Don't indicate that we've failed if we have  in hvcs_get_partner_info()
148 			if (!list_empty(head))  in hvcs_get_partner_info()
169 			hvcs_free_partner_info(head);  in hvcs_get_partner_info()
170 			return -ENOMEM;  in hvcs_get_partner_info()
173 		next_partner_info->unit_address  in hvcs_get_partner_info()
175 		next_partner_info->partition_ID  in hvcs_get_partner_info()
178 		/* copy the Null-term char too */  in hvcs_get_partner_info()
179 		strscpy(&next_partner_info->location_code[0],  in hvcs_get_partner_info()
181 			sizeof(next_partner_info->location_code));  in hvcs_get_partner_info()
183 		list_add_tail(&(next_partner_info->node), head);  in hvcs_get_partner_info()
193  * hvcs_register_connection - establish a connection between this vty-server and
195  * @unit_address: The unit address of the vty-server adapter that is to be
198  * @p_unit_address: The unit address of the vty adapter to which the vty-server
201  * If this function is called once and -EINVAL is returned it may
205  * for a second time, -EINVAL is returned then it indicates that
207  * different vty-server adapter.  It is also possible that a second
208  * -EINVAL may indicate that one of the parms is not valid, for
209  * instance if the link was removed between the vty-server adapter
210  * and the vty adapter that you are trying to open.  Don't shoot the
224  * hvcs_free_connection - free the connection between a vty-server and vty
225  * @unit_address: The unit address of the vty-server that is to have its
228  * This function is used to free the partner connection between a vty-server
231  * If -EBUSY is returned continue to call this function until 0 is returned.