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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Shared Memory Communications over RDMA (SMC-R) and RoCE
*
* Definitions for the SMC module (socket related)
*
* Copyright IBM Corp. 2016
*
* Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
*/
#ifndef _SMC_H
#define _SMC_H
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/wait.h>
#include <linux/dibs.h>
struct sock;
#define SMC_MAX_PNETID_LEN 16 /* Max. length of PNET id */
struct smc_hashinfo {
rwlock_t lock;
struct hlist_head ht;
};
/* SMCD/ISM device driver interface */
#define ISM_RESERVED_VLANID 0x1FFF
struct smcd_gid {
u64 gid;
u64 gid_ext;
};
struct smcd_dev {
struct dibs_dev *dibs;
struct list_head list;
spinlock_t lock;
struct smc_connection **conn;
struct list_head vlan;
struct workqueue_struct *event_wq;
u8 pnetid[SMC_MAX_PNETID_LEN];
bool pnetid_by_user;
struct list_head lgr_list;
spinlock_t lgr_lock;
atomic_t lgr_cnt;
wait_queue_head_t lgrs_deleted;
u8 going_away : 1;
};
#endif /* _SMC_H */
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