diff options
Diffstat (limited to 'net/smc/smc_llc.h')
| -rw-r--r-- | net/smc/smc_llc.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/net/smc/smc_llc.h b/net/smc/smc_llc.h new file mode 100644 index 000000000..9e2ff088e --- /dev/null +++ b/net/smc/smc_llc.h @@ -0,0 +1,54 @@ +/* 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) +#define SMC_LLC_WAIT_TIME (2 * HZ) + +enum smc_llc_reqresp { + SMC_LLC_REQ, + SMC_LLC_RESP +}; + +enum smc_llc_msg_type { + SMC_LLC_CONFIRM_LINK = 0x01, + SMC_LLC_ADD_LINK = 0x02, + SMC_LLC_DELETE_LINK = 0x04, + SMC_LLC_CONFIRM_RKEY = 0x06, + SMC_LLC_TEST_LINK = 0x07, + SMC_LLC_CONFIRM_RKEY_CONT = 0x08, + SMC_LLC_DELETE_RKEY = 0x09, +}; + +/* transmit */ +int smc_llc_send_confirm_link(struct smc_link *lnk, + enum smc_llc_reqresp reqresp); +int smc_llc_send_add_link(struct smc_link *link, u8 mac[], u8 gid[], + enum smc_llc_reqresp reqresp); +int smc_llc_send_delete_link(struct smc_link *link, + enum smc_llc_reqresp reqresp, bool orderly); +int smc_llc_link_init(struct smc_link *link); +void smc_llc_link_active(struct smc_link *link, int testlink_time); +void smc_llc_link_deleting(struct smc_link *link); +void smc_llc_link_inactive(struct smc_link *link); +void smc_llc_link_clear(struct smc_link *link); +int smc_llc_do_confirm_rkey(struct smc_link *link, + struct smc_buf_desc *rmb_desc); +int smc_llc_init(void) __init; + +#endif /* SMC_LLC_H */ |