52bedf37ba
Add initial support for the LLC messages ADD LINK and DELETE LINK. Introduce a link state field. Extend the initial LLC handshake with ADD LINK processing. Signed-off-by: Karsten Graul <kgraul@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Shared Memory Communications over RDMA (SMC-R) and RoCE
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*
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* Definitions for LLC (link layer control) message handling
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*
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* Copyright IBM Corp. 2016
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*
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* Author(s): Klaus Wacker <Klaus.Wacker@de.ibm.com>
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* Ursula Braun <ubraun@linux.vnet.ibm.com>
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*/
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#ifndef SMC_LLC_H
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#define SMC_LLC_H
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#include "smc_wr.h"
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#define SMC_LLC_FLAG_RESP 0x80
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#define SMC_LLC_WAIT_FIRST_TIME (5 * HZ)
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#define SMC_LLC_WAIT_TIME (2 * HZ)
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enum smc_llc_reqresp {
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SMC_LLC_REQ,
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SMC_LLC_RESP
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};
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enum smc_llc_msg_type {
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SMC_LLC_CONFIRM_LINK = 0x01,
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SMC_LLC_ADD_LINK = 0x02,
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SMC_LLC_DELETE_LINK = 0x04,
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SMC_LLC_CONFIRM_RKEY = 0x06,
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SMC_LLC_TEST_LINK = 0x07,
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SMC_LLC_CONFIRM_RKEY_CONT = 0x08,
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SMC_LLC_DELETE_RKEY = 0x09,
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};
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/* transmit */
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int smc_llc_send_confirm_link(struct smc_link *lnk, u8 mac[], union ib_gid *gid,
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enum smc_llc_reqresp reqresp);
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int smc_llc_send_add_link(struct smc_link *link, u8 mac[], union ib_gid *gid,
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enum smc_llc_reqresp reqresp);
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int smc_llc_send_delete_link(struct smc_link *link,
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enum smc_llc_reqresp reqresp);
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int smc_llc_send_test_link(struct smc_link *lnk, u8 user_data[16],
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enum smc_llc_reqresp reqresp);
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int smc_llc_init(void) __init;
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#endif /* SMC_LLC_H */
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