mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 15:35:04 +07:00
adee2592b6
As commit df2a2a5225 ("s390/qeth: convert IP table spinlock to mutex")
converted the ip_lock to a mutex, we no longer have to yield it while
the subsequent IO sleep-waits for completion.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright IBM Corp. 2007
|
|
* Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
|
|
* Frank Pavlic <fpavlic@de.ibm.com>,
|
|
* Thomas Spatzier <tspat@de.ibm.com>,
|
|
* Frank Blaschka <frank.blaschka@de.ibm.com>
|
|
*/
|
|
|
|
#ifndef __QETH_L3_H__
|
|
#define __QETH_L3_H__
|
|
|
|
#include "qeth_core.h"
|
|
#include <linux/hashtable.h>
|
|
|
|
enum qeth_ip_types {
|
|
QETH_IP_TYPE_NORMAL,
|
|
QETH_IP_TYPE_VIPA,
|
|
QETH_IP_TYPE_RXIP,
|
|
};
|
|
|
|
struct qeth_ipaddr {
|
|
struct hlist_node hnode;
|
|
enum qeth_ip_types type;
|
|
u8 is_multicast:1;
|
|
u8 disp_flag:2;
|
|
u8 ipato:1; /* ucast only */
|
|
|
|
/* is changed only for normal ip addresses
|
|
* for non-normal addresses it always is 1
|
|
*/
|
|
int ref_counter;
|
|
enum qeth_prot_versions proto;
|
|
union {
|
|
struct {
|
|
__be32 addr;
|
|
__be32 mask;
|
|
} a4;
|
|
struct {
|
|
struct in6_addr addr;
|
|
unsigned int pfxlen;
|
|
} a6;
|
|
} u;
|
|
};
|
|
|
|
static inline void qeth_l3_init_ipaddr(struct qeth_ipaddr *addr,
|
|
enum qeth_ip_types type,
|
|
enum qeth_prot_versions proto)
|
|
{
|
|
memset(addr, 0, sizeof(*addr));
|
|
addr->type = type;
|
|
addr->proto = proto;
|
|
addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
|
|
addr->ref_counter = 1;
|
|
}
|
|
|
|
static inline bool qeth_l3_addr_match_ip(struct qeth_ipaddr *a1,
|
|
struct qeth_ipaddr *a2)
|
|
{
|
|
if (a1->proto != a2->proto)
|
|
return false;
|
|
if (a1->proto == QETH_PROT_IPV6)
|
|
return ipv6_addr_equal(&a1->u.a6.addr, &a2->u.a6.addr);
|
|
return a1->u.a4.addr == a2->u.a4.addr;
|
|
}
|
|
|
|
static inline bool qeth_l3_addr_match_all(struct qeth_ipaddr *a1,
|
|
struct qeth_ipaddr *a2)
|
|
{
|
|
/* Assumes that the pair was obtained via qeth_l3_addr_find_by_ip(),
|
|
* so 'proto' and 'addr' match for sure.
|
|
*
|
|
* For ucast:
|
|
* - 'mask'/'pfxlen' for RXIP/VIPA is always 0. For NORMAL, matching
|
|
* values are required to avoid mixups in takeover eligibility.
|
|
*
|
|
* For mcast,
|
|
* - 'mask'/'pfxlen' is always 0.
|
|
*/
|
|
if (a1->type != a2->type)
|
|
return false;
|
|
if (a1->proto == QETH_PROT_IPV6)
|
|
return a1->u.a6.pfxlen == a2->u.a6.pfxlen;
|
|
return a1->u.a4.mask == a2->u.a4.mask;
|
|
}
|
|
|
|
static inline u32 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
|
|
{
|
|
if (addr->proto == QETH_PROT_IPV6)
|
|
return ipv6_addr_hash(&addr->u.a6.addr);
|
|
else
|
|
return ipv4_addr_hash(addr->u.a4.addr);
|
|
}
|
|
|
|
struct qeth_ipato_entry {
|
|
struct list_head entry;
|
|
enum qeth_prot_versions proto;
|
|
char addr[16];
|
|
int mask_bits;
|
|
};
|
|
|
|
extern const struct attribute_group *qeth_l3_attr_groups[];
|
|
|
|
int qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const u8 *addr,
|
|
char *buf);
|
|
int qeth_l3_create_device_attributes(struct device *);
|
|
void qeth_l3_remove_device_attributes(struct device *);
|
|
int qeth_l3_setrouting_v4(struct qeth_card *);
|
|
int qeth_l3_setrouting_v6(struct qeth_card *);
|
|
int qeth_l3_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
|
|
int qeth_l3_del_ipato_entry(struct qeth_card *card,
|
|
enum qeth_prot_versions proto, u8 *addr,
|
|
int mask_bits);
|
|
void qeth_l3_update_ipato(struct qeth_card *card);
|
|
int qeth_l3_modify_hsuid(struct qeth_card *card, bool add);
|
|
int qeth_l3_modify_rxip_vipa(struct qeth_card *card, bool add, const u8 *ip,
|
|
enum qeth_ip_types type,
|
|
enum qeth_prot_versions proto);
|
|
|
|
#endif /* __QETH_L3_H__ */
|