40cc695d63
Commitc2261dd76b
("RDMA/device: Add ib_device_set_netdev() as an alternative to get_netdev") declared but never implemented ib_device_netdev(), remove it. Commit922a8e9fb2
("RDMA: iWARP Connection Manager.") declared but never implemented iw_cm_unbind_qp() and iw_cm_get_qp(). Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20230809142718.42316-1-yuehaibing@huawei.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
206 lines
6.5 KiB
C
206 lines
6.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
|
|
/*
|
|
* Copyright (c) 2005 Network Appliance, Inc. All rights reserved.
|
|
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
|
|
*/
|
|
|
|
#ifndef IW_CM_H
|
|
#define IW_CM_H
|
|
|
|
#include <linux/in.h>
|
|
#include <rdma/ib_cm.h>
|
|
|
|
struct iw_cm_id;
|
|
|
|
enum iw_cm_event_type {
|
|
IW_CM_EVENT_CONNECT_REQUEST = 1, /* connect request received */
|
|
IW_CM_EVENT_CONNECT_REPLY, /* reply from active connect request */
|
|
IW_CM_EVENT_ESTABLISHED, /* passive side accept successful */
|
|
IW_CM_EVENT_DISCONNECT, /* orderly shutdown */
|
|
IW_CM_EVENT_CLOSE /* close complete */
|
|
};
|
|
|
|
struct iw_cm_event {
|
|
enum iw_cm_event_type event;
|
|
int status;
|
|
struct sockaddr_storage local_addr;
|
|
struct sockaddr_storage remote_addr;
|
|
void *private_data;
|
|
void *provider_data;
|
|
u8 private_data_len;
|
|
u8 ord;
|
|
u8 ird;
|
|
};
|
|
|
|
/**
|
|
* iw_cm_handler - Function to be called by the IW CM when delivering events
|
|
* to the client.
|
|
*
|
|
* @cm_id: The IW CM identifier associated with the event.
|
|
* @event: Pointer to the event structure.
|
|
*/
|
|
typedef int (*iw_cm_handler)(struct iw_cm_id *cm_id,
|
|
struct iw_cm_event *event);
|
|
|
|
/**
|
|
* iw_event_handler - Function called by the provider when delivering provider
|
|
* events to the IW CM. Returns either 0 indicating the event was processed
|
|
* or -errno if the event could not be processed.
|
|
*
|
|
* @cm_id: The IW CM identifier associated with the event.
|
|
* @event: Pointer to the event structure.
|
|
*/
|
|
typedef int (*iw_event_handler)(struct iw_cm_id *cm_id,
|
|
struct iw_cm_event *event);
|
|
|
|
struct iw_cm_id {
|
|
iw_cm_handler cm_handler; /* client callback function */
|
|
void *context; /* client cb context */
|
|
struct ib_device *device;
|
|
struct sockaddr_storage local_addr; /* local addr */
|
|
struct sockaddr_storage remote_addr;
|
|
struct sockaddr_storage m_local_addr; /* nmapped local addr */
|
|
struct sockaddr_storage m_remote_addr; /* nmapped rem addr */
|
|
void *provider_data; /* provider private data */
|
|
iw_event_handler event_handler; /* cb for provider
|
|
events */
|
|
/* Used by provider to add and remove refs on IW cm_id */
|
|
void (*add_ref)(struct iw_cm_id *);
|
|
void (*rem_ref)(struct iw_cm_id *);
|
|
u8 tos;
|
|
bool tos_set:1;
|
|
bool mapped:1;
|
|
bool afonly:1;
|
|
};
|
|
|
|
struct iw_cm_conn_param {
|
|
const void *private_data;
|
|
u16 private_data_len;
|
|
u32 ord;
|
|
u32 ird;
|
|
u32 qpn;
|
|
};
|
|
|
|
enum iw_flags {
|
|
|
|
/*
|
|
* This flag allows the iwcm and iwpmd to still advertise
|
|
* mappings but the real and mapped port numbers are the
|
|
* same. Further, iwpmd will not bind any user socket to
|
|
* reserve the port. This is required for soft iwarp
|
|
* to play in the port mapped iwarp space.
|
|
*/
|
|
IW_F_NO_PORT_MAP = (1 << 0),
|
|
};
|
|
|
|
/**
|
|
* iw_create_cm_id - Create an IW CM identifier.
|
|
*
|
|
* @device: The IB device on which to create the IW CM identier.
|
|
* @event_handler: User callback invoked to report events associated with the
|
|
* returned IW CM identifier.
|
|
* @context: User specified context associated with the id.
|
|
*/
|
|
struct iw_cm_id *iw_create_cm_id(struct ib_device *device,
|
|
iw_cm_handler cm_handler, void *context);
|
|
|
|
/**
|
|
* iw_destroy_cm_id - Destroy an IW CM identifier.
|
|
*
|
|
* @cm_id: The previously created IW CM identifier to destroy.
|
|
*
|
|
* The client can assume that no events will be delivered for the CM ID after
|
|
* this function returns.
|
|
*/
|
|
void iw_destroy_cm_id(struct iw_cm_id *cm_id);
|
|
|
|
/**
|
|
* iw_cm_listen - Listen for incoming connection requests on the
|
|
* specified IW CM id.
|
|
*
|
|
* @cm_id: The IW CM identifier.
|
|
* @backlog: The maximum number of outstanding un-accepted inbound listen
|
|
* requests to queue.
|
|
*
|
|
* The source address and port number are specified in the IW CM identifier
|
|
* structure.
|
|
*/
|
|
int iw_cm_listen(struct iw_cm_id *cm_id, int backlog);
|
|
|
|
/**
|
|
* iw_cm_accept - Called to accept an incoming connect request.
|
|
*
|
|
* @cm_id: The IW CM identifier associated with the connection request.
|
|
* @iw_param: Pointer to a structure containing connection establishment
|
|
* parameters.
|
|
*
|
|
* The specified cm_id will have been provided in the event data for a
|
|
* CONNECT_REQUEST event. Subsequent events related to this connection will be
|
|
* delivered to the specified IW CM identifier prior and may occur prior to
|
|
* the return of this function. If this function returns a non-zero value, the
|
|
* client can assume that no events will be delivered to the specified IW CM
|
|
* identifier.
|
|
*/
|
|
int iw_cm_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param);
|
|
|
|
/**
|
|
* iw_cm_reject - Reject an incoming connection request.
|
|
*
|
|
* @cm_id: Connection identifier associated with the request.
|
|
* @private_daa: Pointer to data to deliver to the remote peer as part of the
|
|
* reject message.
|
|
* @private_data_len: The number of bytes in the private_data parameter.
|
|
*
|
|
* The client can assume that no events will be delivered to the specified IW
|
|
* CM identifier following the return of this function. The private_data
|
|
* buffer is available for reuse when this function returns.
|
|
*/
|
|
int iw_cm_reject(struct iw_cm_id *cm_id, const void *private_data,
|
|
u8 private_data_len);
|
|
|
|
/**
|
|
* iw_cm_connect - Called to request a connection to a remote peer.
|
|
*
|
|
* @cm_id: The IW CM identifier for the connection.
|
|
* @iw_param: Pointer to a structure containing connection establishment
|
|
* parameters.
|
|
*
|
|
* Events may be delivered to the specified IW CM identifier prior to the
|
|
* return of this function. If this function returns a non-zero value, the
|
|
* client can assume that no events will be delivered to the specified IW CM
|
|
* identifier.
|
|
*/
|
|
int iw_cm_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param);
|
|
|
|
/**
|
|
* iw_cm_disconnect - Close the specified connection.
|
|
*
|
|
* @cm_id: The IW CM identifier to close.
|
|
* @abrupt: If 0, the connection will be closed gracefully, otherwise, the
|
|
* connection will be reset.
|
|
*
|
|
* The IW CM identifier is still active until the IW_CM_EVENT_CLOSE event is
|
|
* delivered.
|
|
*/
|
|
int iw_cm_disconnect(struct iw_cm_id *cm_id, int abrupt);
|
|
|
|
/**
|
|
* iw_cm_init_qp_attr - Called to initialize the attributes of the QP
|
|
* associated with a IW CM identifier.
|
|
*
|
|
* @cm_id: The IW CM identifier associated with the QP
|
|
* @qp_attr: Pointer to the QP attributes structure.
|
|
* @qp_attr_mask: Pointer to a bit vector specifying which QP attributes are
|
|
* valid.
|
|
*/
|
|
int iw_cm_init_qp_attr(struct iw_cm_id *cm_id, struct ib_qp_attr *qp_attr,
|
|
int *qp_attr_mask);
|
|
|
|
/**
|
|
* iwcm_reject_msg - return a pointer to a reject message string.
|
|
* @reason: Value returned in the REJECT event status field.
|
|
*/
|
|
const char *__attribute_const__ iwcm_reject_msg(int reason);
|
|
|
|
#endif /* IW_CM_H */
|