You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.2 KiB
64 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Shared Memory Communications over RDMA (SMC-R) and RoCE
|
|
*
|
|
* Definitions for LLC (link layer control) message handling
|
|
*
|
|
* Copyright IBM Corp. 2016
|
|
*
|
|
* Author(s): Klaus Wacker <Klaus.Wacker@de.ibm.com>
|
|
* Ursula Braun <ubraun@linux.vnet.ibm.com>
|
|
*/
|
|
|
|
#ifndef SMC_LLC_H
|
|
#define SMC_LLC_H
|
|
|
|
#include "smc_wr.h"
|
|
|
|
#define SMC_LLC_FLAG_RESP 0x80
|
|
|
|
#define SMC_LLC_WAIT_FIRST_TIME (5 * HZ)
|
|
|
|
enum smc_llc_reqresp {
|
|
SMC_LLC_REQ,
|
|
SMC_LLC_RESP
|
|
};
|
|
|
|
enum smc_llc_msg_type {
|
|
SMC_LLC_CONFIRM_LINK = 0x01,
|
|
};
|
|
|
|
#define SMC_LLC_DATA_LEN 40
|
|
|
|
struct smc_llc_hdr {
|
|
struct smc_wr_rx_hdr common;
|
|
u8 length; /* 44 */
|
|
u8 reserved;
|
|
u8 flags;
|
|
};
|
|
|
|
struct smc_llc_msg_confirm_link { /* type 0x01 */
|
|
struct smc_llc_hdr hd;
|
|
u8 sender_mac[ETH_ALEN];
|
|
u8 sender_gid[SMC_GID_SIZE];
|
|
u8 sender_qp_num[3];
|
|
u8 link_num;
|
|
u8 link_uid[SMC_LGR_ID_SIZE];
|
|
u8 max_links;
|
|
u8 reserved[9];
|
|
};
|
|
|
|
union smc_llc_msg {
|
|
struct smc_llc_msg_confirm_link confirm_link;
|
|
struct {
|
|
struct smc_llc_hdr hdr;
|
|
u8 data[SMC_LLC_DATA_LEN];
|
|
} raw;
|
|
};
|
|
|
|
/* transmit */
|
|
int smc_llc_send_confirm_link(struct smc_link *lnk, u8 mac[], union ib_gid *gid,
|
|
enum smc_llc_reqresp reqresp);
|
|
int smc_llc_init(void) __init;
|
|
|
|
#endif /* SMC_LLC_H */
|
|
|