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
61 int (*query_remote_gid)(struct smcd_dev *dev, struct smcd_gid *rgid,
62 u32 vid_valid, u32 vid);
63 int (*register_dmb)(struct smcd_dev *dev, struct smcd_dmb *dmb,
64 struct ism_client *client);
65 int (*unregister_dmb)(struct smcd_dev *dev, struct smcd_dmb *dmb);
66 int (*add_vlan_id)(struct smcd_dev *dev, u64 vlan_id);
67 int (*del_vlan_id)(struct smcd_dev *dev, u64 vlan_id);
68 int (*set_vlan_required)(struct smcd_dev *dev);
69 int (*reset_vlan_required)(struct smcd_dev *dev);
70 int (*signal_event)(struct smcd_dev *dev, struct smcd_gid *rgid,
71 u32 trigger_irq, u32 event_code, u64 info);
72 int (*move_data)(struct smcd_dev *dev, u64 dmb_tok, unsigned int idx,
73 bool sf, unsigned int offset, void *data,
75 int (*supports_v2)(void);
76 void (*get_local_gid)(struct smcd_dev *dev, struct smcd_gid *gid);
77 u16 (*get_chid)(struct smcd_dev *dev);
78 struct device* (*get_dev)(struct smcd_dev *dev);
82 const struct smcd_ops *ops;
84 struct list_head list;
86 struct smc_connection **conn;
87 struct list_head vlan;
88 struct workqueue_struct *event_wq;
89 u8 pnetid[SMC_MAX_PNETID_LEN];
91 struct list_head lgr_list;
94 wait_queue_head_t lgrs_deleted;