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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
9bf9abea UB |
2 | /* |
3 | * Shared Memory Communications over RDMA (SMC-R) and RoCE | |
4 | * | |
5 | * Definitions for LLC (link layer control) message handling | |
6 | * | |
7 | * Copyright IBM Corp. 2016 | |
8 | * | |
9 | * Author(s): Klaus Wacker <Klaus.Wacker@de.ibm.com> | |
10 | * Ursula Braun <ubraun@linux.vnet.ibm.com> | |
11 | */ | |
12 | ||
13 | #ifndef SMC_LLC_H | |
14 | #define SMC_LLC_H | |
15 | ||
16 | #include "smc_wr.h" | |
17 | ||
18 | #define SMC_LLC_FLAG_RESP 0x80 | |
19 | ||
20 | #define SMC_LLC_WAIT_FIRST_TIME (5 * HZ) | |
52bedf37 | 21 | #define SMC_LLC_WAIT_TIME (2 * HZ) |
9bf9abea UB |
22 | |
23 | enum smc_llc_reqresp { | |
24 | SMC_LLC_REQ, | |
25 | SMC_LLC_RESP | |
26 | }; | |
27 | ||
28 | enum smc_llc_msg_type { | |
29 | SMC_LLC_CONFIRM_LINK = 0x01, | |
52bedf37 KG |
30 | SMC_LLC_ADD_LINK = 0x02, |
31 | SMC_LLC_DELETE_LINK = 0x04, | |
4ed75de5 | 32 | SMC_LLC_CONFIRM_RKEY = 0x06, |
313164da | 33 | SMC_LLC_TEST_LINK = 0x07, |
4ed75de5 KG |
34 | SMC_LLC_CONFIRM_RKEY_CONT = 0x08, |
35 | SMC_LLC_DELETE_RKEY = 0x09, | |
9bf9abea UB |
36 | }; |
37 | ||
9bf9abea UB |
38 | /* transmit */ |
39 | int smc_llc_send_confirm_link(struct smc_link *lnk, u8 mac[], union ib_gid *gid, | |
40 | enum smc_llc_reqresp reqresp); | |
52bedf37 KG |
41 | int smc_llc_send_add_link(struct smc_link *link, u8 mac[], union ib_gid *gid, |
42 | enum smc_llc_reqresp reqresp); | |
43 | int smc_llc_send_delete_link(struct smc_link *link, | |
44 | enum smc_llc_reqresp reqresp); | |
313164da KG |
45 | int smc_llc_send_test_link(struct smc_link *lnk, u8 user_data[16], |
46 | enum smc_llc_reqresp reqresp); | |
877ae5be KG |
47 | void smc_llc_link_active(struct smc_link *link, int testlink_time); |
48 | void smc_llc_link_inactive(struct smc_link *link); | |
49 | void smc_llc_link_flush(struct smc_link *link); | |
9bf9abea UB |
50 | int smc_llc_init(void) __init; |
51 | ||
52 | #endif /* SMC_LLC_H */ |