mirror of
https://github.com/torvalds/linux.git
synced 2024-12-17 00:21:32 +00:00
a3db10efcc
Deliver SMCR device information via netlink based diagnostic interface. Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
97 lines
3.6 KiB
C
97 lines
3.6 KiB
C
/* 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 Braun@linux.vnet.ibm.com>
|
|
*/
|
|
|
|
#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 2 /* Max # of ports */
|
|
#define SMC_GID_SIZE sizeof(union ib_gid)
|
|
|
|
#define SMC_IB_MAX_SEND_SGE 2
|
|
|
|
struct smc_ib_devices { /* list of smc ib devices definition */
|
|
struct list_head list;
|
|
struct mutex mutex; /* protects list of 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 { /* ib-device infos for smc */
|
|
struct list_head list;
|
|
struct ib_device *ibdev;
|
|
struct ib_port_attr pattr[SMC_MAX_PORTS]; /* ib dev. port attrs */
|
|
struct ib_event_handler event_handler; /* global ib_event handler */
|
|
struct ib_cq *roce_cq_send; /* send completion queue */
|
|
struct ib_cq *roce_cq_recv; /* recv completion queue */
|
|
struct tasklet_struct send_tasklet; /* called by send cq handler */
|
|
struct tasklet_struct recv_tasklet; /* called by recv cq handler */
|
|
char mac[SMC_MAX_PORTS][ETH_ALEN];
|
|
/* mac address per port*/
|
|
u8 pnetid[SMC_MAX_PORTS][SMC_MAX_PNETID_LEN];
|
|
/* pnetid per port */
|
|
bool pnetid_by_user[SMC_MAX_PORTS];
|
|
/* pnetid defined by user? */
|
|
u8 initialized : 1; /* ib dev CQ, evthdl done */
|
|
struct work_struct port_event_work;
|
|
unsigned long port_event_mask;
|
|
DECLARE_BITMAP(ports_going_away, SMC_MAX_PORTS);
|
|
atomic_t lnk_cnt; /* number of links on ibdev */
|
|
wait_queue_head_t lnks_deleted; /* wait 4 removal of all links*/
|
|
struct mutex mutex; /* protect dev setup+cleanup */
|
|
atomic_t lnk_cnt_by_port[SMC_MAX_PORTS];
|
|
/* number of links per port */
|
|
int ndev_ifidx[SMC_MAX_PORTS]; /* ndev if indexes */
|
|
};
|
|
|
|
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_reset(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);
|
|
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);
|
|
bool smc_ib_is_valid_local_systemid(void);
|
|
int smcr_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb);
|
|
#endif
|