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12#ifndef _SMC_IB_H
13#define _SMC_IB_H
14
15#include <linux/interrupt.h>
16#include <linux/if_ether.h>
17#include <rdma/ib_verbs.h>
18#include <net/smc.h>
19
20#define SMC_MAX_PORTS 2
21#define SMC_GID_SIZE sizeof(union ib_gid)
22
23#define SMC_IB_MAX_SEND_SGE 2
24
25struct smc_ib_devices {
26 struct list_head list;
27 spinlock_t lock;
28};
29
30extern struct smc_ib_devices smc_ib_devices;
31
32struct smc_ib_device {
33 struct list_head list;
34 struct ib_device *ibdev;
35 struct ib_port_attr pattr[SMC_MAX_PORTS];
36 struct ib_event_handler event_handler;
37 struct ib_cq *roce_cq_send;
38 struct ib_cq *roce_cq_recv;
39 struct tasklet_struct send_tasklet;
40 struct tasklet_struct recv_tasklet;
41 char mac[SMC_MAX_PORTS][ETH_ALEN];
42
43 u8 pnetid[SMC_MAX_PORTS][SMC_MAX_PNETID_LEN];
44
45 u8 initialized : 1;
46 struct work_struct port_event_work;
47 unsigned long port_event_mask;
48};
49
50struct smc_buf_desc;
51struct smc_link;
52
53int smc_ib_register_client(void) __init;
54void smc_ib_unregister_client(void);
55bool smc_ib_port_active(struct smc_ib_device *smcibdev, u8 ibport);
56int smc_ib_buf_map_sg(struct smc_ib_device *smcibdev,
57 struct smc_buf_desc *buf_slot,
58 enum dma_data_direction data_direction);
59void smc_ib_buf_unmap_sg(struct smc_ib_device *smcibdev,
60 struct smc_buf_desc *buf_slot,
61 enum dma_data_direction data_direction);
62void smc_ib_dealloc_protection_domain(struct smc_link *lnk);
63int smc_ib_create_protection_domain(struct smc_link *lnk);
64void smc_ib_destroy_queue_pair(struct smc_link *lnk);
65int smc_ib_create_queue_pair(struct smc_link *lnk);
66int smc_ib_ready_link(struct smc_link *lnk);
67int smc_ib_modify_qp_rts(struct smc_link *lnk);
68int smc_ib_modify_qp_reset(struct smc_link *lnk);
69long smc_ib_setup_per_ibdev(struct smc_ib_device *smcibdev);
70int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
71 struct smc_buf_desc *buf_slot);
72void smc_ib_put_memory_region(struct ib_mr *mr);
73void smc_ib_sync_sg_for_cpu(struct smc_ib_device *smcibdev,
74 struct smc_buf_desc *buf_slot,
75 enum dma_data_direction data_direction);
76void smc_ib_sync_sg_for_device(struct smc_ib_device *smcibdev,
77 struct smc_buf_desc *buf_slot,
78 enum dma_data_direction data_direction);
79int smc_ib_determine_gid(struct smc_ib_device *smcibdev, u8 ibport,
80 unsigned short vlan_id, u8 gid[], u8 *sgid_index);
81#endif
82