smc_ib.h | Explore in Territory

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Shared Memory Communications over RDMA (SMC-R) and RoCE
 *
 *  Definitions for IB environment
 *
 *  Copyright IBM Corp. 2016
 *
 *  Author(s):  Ursula Braun <Ursula [email protected]>
 */

#ifndef _SMC_IB_H
#define _SMC_IB_H

#include <linux/interrupt.h>
#include <linux/if_ether.h>
#include <linux/mutex.h>
#include <linux/wait.h>
#include <rdma/ib_verbs.h>
#include <net/smc.h>

#define SMC_MAX_PORTS …
#define SMC_GID_SIZE …

#define SMC_IB_MAX_SEND_SGE …

struct smc_ib_devices { … };

extern struct smc_ib_devices	smc_ib_devices; /* list of smc ib devices */
extern struct smc_lgr_list smc_lgr_list; /* list of linkgroups */

struct smc_ib_device { … };

static inline __be32 smc_ib_gid_to_ipv4(u8 gid[SMC_GID_SIZE])
{ … }

static inline struct net *smc_ib_net(struct smc_ib_device *smcibdev)
{ … }

struct smc_init_info_smcrv2;
struct smc_buf_desc;
struct smc_link;

void smc_ib_ndev_change(struct net_device *ndev, unsigned long event);
int smc_ib_register_client(void) __init;
void smc_ib_unregister_client(void);
bool smc_ib_port_active(struct smc_ib_device *smcibdev, u8 ibport);
int smc_ib_buf_map_sg(struct smc_link *lnk,
		      struct smc_buf_desc *buf_slot,
		      enum dma_data_direction data_direction);
void smc_ib_buf_unmap_sg(struct smc_link *lnk,
			 struct smc_buf_desc *buf_slot,
			 enum dma_data_direction data_direction);
void smc_ib_dealloc_protection_domain(struct smc_link *lnk);
int smc_ib_create_protection_domain(struct smc_link *lnk);
void smc_ib_destroy_queue_pair(struct smc_link *lnk);
int smc_ib_create_queue_pair(struct smc_link *lnk);
int smc_ib_ready_link(struct smc_link *lnk);
int smc_ib_modify_qp_rts(struct smc_link *lnk);
int smc_ib_modify_qp_error(struct smc_link *lnk);
long smc_ib_setup_per_ibdev(struct smc_ib_device *smcibdev);
int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
			     struct smc_buf_desc *buf_slot, u8 link_idx);
void smc_ib_put_memory_region(struct ib_mr *mr);
bool smc_ib_is_sg_need_sync(struct smc_link *lnk,
			    struct smc_buf_desc *buf_slot);
void smc_ib_sync_sg_for_cpu(struct smc_link *lnk,
			    struct smc_buf_desc *buf_slot,
			    enum dma_data_direction data_direction);
void smc_ib_sync_sg_for_device(struct smc_link *lnk,
			       struct smc_buf_desc *buf_slot,
			       enum dma_data_direction data_direction);
int smc_ib_determine_gid(struct smc_ib_device *smcibdev, u8 ibport,
			 unsigned short vlan_id, u8 gid[], u8 *sgid_index,
			 struct smc_init_info_smcrv2 *smcrv2);
int smc_ib_find_route(struct net *net, __be32 saddr, __be32 daddr,
		      u8 nexthop_mac[], u8 *uses_gateway);
bool smc_ib_is_valid_local_systemid(void);
int smcr_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb);
#endif
linux/net/smc/smc_ib.h
