1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Shared Memory Communications over RDMA (SMC-R) and RoCE
5 * Definitions for the SMC module (socket related)
7 * Copyright IBM Corp. 2016
9 * Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
14 #include <linux/device.h>
15 #include <linux/spinlock.h>
16 #include <linux/types.h>
17 #include <linux/wait.h>
18 #include "linux/ism.h"
22 #define SMC_MAX_PNETID_LEN 16 /* Max. length of PNET id */
29 int smc_hash_sk(struct sock *sk);
30 void smc_unhash_sk(struct sock *sk);
32 /* SMCD/ISM device driver interface */
44 #define ISM_EVENT_DMB 0
45 #define ISM_EVENT_GID 1
46 #define ISM_EVENT_SWR 2
48 #define ISM_RESERVED_VLANID 0x1FFF
50 #define ISM_ERROR 0xFFFF
55 int (*query_remote_gid)(struct smcd_dev *dev, u64 rgid, u32 vid_valid,
57 int (*register_dmb)(struct smcd_dev *dev, struct smcd_dmb *dmb);
58 int (*unregister_dmb)(struct smcd_dev *dev, struct smcd_dmb *dmb);
59 int (*add_vlan_id)(struct smcd_dev *dev, u64 vlan_id);
60 int (*del_vlan_id)(struct smcd_dev *dev, u64 vlan_id);
61 int (*set_vlan_required)(struct smcd_dev *dev);
62 int (*reset_vlan_required)(struct smcd_dev *dev);
63 int (*signal_event)(struct smcd_dev *dev, u64 rgid, u32 trigger_irq,
64 u32 event_code, u64 info);
65 int (*move_data)(struct smcd_dev *dev, u64 dmb_tok, unsigned int idx,
66 bool sf, unsigned int offset, void *data,
68 u8* (*get_system_eid)(void);
69 u16 (*get_chid)(struct smcd_dev *dev);
73 const struct smcd_ops *ops;
77 struct list_head list;
79 struct smc_connection **conn;
80 struct list_head vlan;
81 struct workqueue_struct *event_wq;
82 u8 pnetid[SMC_MAX_PNETID_LEN];
84 struct list_head lgr_list;
87 wait_queue_head_t lgrs_deleted;
91 struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name,
92 const struct smcd_ops *ops, int max_dmbs);
93 void smcd_free_dev(struct smcd_dev *smcd);