projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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, |
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34 | SMC_LLC_CONFIRM_RKEY_CONT = 0x08, |
| 35 | SMC_LLC_DELETE_RKEY = 0x09, | |
| 9bf9abea UB |
36 | }; |
| 37 | ||
| 9bf9abea | 38 | /* transmit */ |
| 947541f3 | 39 | int smc_llc_send_confirm_link(struct smc_link *lnk, |
| 9bf9abea | 40 | enum smc_llc_reqresp reqresp); |
| 7005ada6 | 41 | int smc_llc_send_add_link(struct smc_link *link, u8 mac[], u8 gid[], |
| 52bedf37 KG |
42 | enum smc_llc_reqresp reqresp); |
| 43 | int smc_llc_send_delete_link(struct smc_link *link, | |
| 0d18a0cb | 44 | enum smc_llc_reqresp reqresp, bool orderly); |
| 2a4c57a9 | 45 | int smc_llc_link_init(struct smc_link *link); |
| 877ae5be | 46 | void smc_llc_link_active(struct smc_link *link, int testlink_time); |
| 0d18a0cb | 47 | void smc_llc_link_deleting(struct smc_link *link); |
| 877ae5be | 48 | void smc_llc_link_inactive(struct smc_link *link); |
| 2a4c57a9 | 49 | void smc_llc_link_clear(struct smc_link *link); |
| 44aa81ce KG |
50 | int smc_llc_do_confirm_rkey(struct smc_link *link, |
| 51 | struct smc_buf_desc *rmb_desc); | |
| 60e03c62 KG |
52 | int smc_llc_do_delete_rkey(struct smc_link *link, |
| 53 | struct smc_buf_desc *rmb_desc); | |
| 9bf9abea UB |
54 | int smc_llc_init(void) __init; |
| 55 | ||
| 56 | #endif /* SMC_LLC_H */ |