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linux-next/drivers/s390/net/qeth_l3.h
Julian Wiedmann b9ea525012 s390/qeth: improve error reporting on IP add/removal
When adding & removing IP entries for rxip/vipa/ipato/hsuid, forward any
resulting errors back to the sysfs-level caller.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:52:22 -05:00

92 lines
2.5 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>
#define QETH_SNIFF_AVAIL 0x0008
struct qeth_ipaddr {
struct hlist_node hnode;
enum qeth_ip_types type;
enum qeth_ipa_setdelip_flags set_flags;
enum qeth_ipa_setdelip_flags del_flags;
u8 is_multicast:1;
u8 in_progress:1;
u8 disp_flag:2;
/* is changed only for normal ip addresses
* for non-normal addresses it always is 1
*/
int ref_counter;
enum qeth_prot_versions proto;
unsigned char mac[ETH_ALEN];
union {
struct {
unsigned int addr;
unsigned int mask;
} a4;
struct {
struct in6_addr addr;
unsigned int pfxlen;
} a6;
} u;
};
static inline u64 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
{
u64 ret = 0;
u8 *point;
if (addr->proto == QETH_PROT_IPV6) {
point = (u8 *) &addr->u.a6.addr;
ret = get_unaligned((u64 *)point) ^
get_unaligned((u64 *) (point + 8));
}
if (addr->proto == QETH_PROT_IPV4) {
point = (u8 *) &addr->u.a4.addr;
ret = get_unaligned((u32 *) point);
}
return ret;
}
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[];
void qeth_l3_ipaddr_to_string(enum qeth_prot_versions, const __u8 *, char *);
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);
int qeth_l3_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
int qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
const u8 *addr);
int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
int qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
const u8 *addr);
void qeth_l3_update_ipato(struct qeth_card *card);
struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions);
int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *);
int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *);
#endif /* __QETH_L3_H__ */