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https://github.com/ipxe/ipxe
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[infiniband] Add Communication Manager (CM)
The Communication Manager is responsible for handling the setup and teardown of RC connections.
This commit is contained in:
Michael Brown
@@ -147,6 +147,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
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#define ERRFILE_ib_gma ( ERRFILE_NET | 0x001b0000 )
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#define ERRFILE_ib_pathrec ( ERRFILE_NET | 0x001c0000 )
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#define ERRFILE_ib_mcast ( ERRFILE_NET | 0x001d0000 )
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#define ERRFILE_ib_cm ( ERRFILE_NET | 0x001e0000 )
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#define ERRFILE_image ( ERRFILE_IMAGE | 0x00000000 )
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#define ERRFILE_elf ( ERRFILE_IMAGE | 0x00010000 )
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21
src/include/gpxe/ib_cm.h
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21
src/include/gpxe/ib_cm.h
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@@ -0,0 +1,21 @@
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#ifndef _GPXE_IB_CM_H
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#define _GPXE_IB_CM_H
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/** @file
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*
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* Infiniband communication management
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <gpxe/infiniband.h>
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extern int ib_cm_connect ( struct ib_queue_pair *qp, struct ib_gid *dgid,
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struct ib_gid_half *service_id,
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void *private_data, size_t private_data_len,
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void ( * notify ) ( struct ib_queue_pair *qp,
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int rc, void *private_data,
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size_t private_data_len ) );
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#endif /* _GPXE_IB_CM_H */
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@@ -282,6 +282,172 @@ union ib_sa_data {
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struct ib_mc_member_record mc_member_record;
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} __attribute__ (( packed ));
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/*****************************************************************************
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*
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* Communication management MADs
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*
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*****************************************************************************
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*/
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/** Communication management class version */
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#define IB_CM_CLASS_VERSION 2
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/* Communication management attributes */
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#define IB_CM_ATTR_CLASS_PORT_INFO 0x0001
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#define IB_CM_ATTR_CONNECT_REQUEST 0x0010
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#define IB_CM_ATTR_MSG_RCPT_ACK 0x0011
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#define IB_CM_ATTR_CONNECT_REJECT 0x0012
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#define IB_CM_ATTR_CONNECT_REPLY 0x0013
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#define IB_CM_ATTR_READY_TO_USE 0x0014
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#define IB_CM_ATTR_DISCONNECT_REQUEST 0x0015
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#define IB_CM_ATTR_DISCONNECT_REPLY 0x0016
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#define IB_CM_ATTR_SERVICE_ID_RES_REQ 0x0016
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#define IB_CM_ATTR_SERVICE_ID_RES_REQ_RESP 0x0018
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#define IB_CM_ATTR_LOAD_ALTERNATE_PATH 0x0019
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#define IB_CM_ATTR_ALTERNATE_PATH_RESPONSE 0x001a
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/** A communication management path */
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struct ib_cm_path {
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/** Local port LID */
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uint16_t local_lid;
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/** Remote port LID */
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uint16_t remote_lid;
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/** Local port GID */
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struct ib_gid local_gid;
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/** Remote port GID */
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struct ib_gid remote_gid;
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/** Flow label and rate */
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uint32_t flow_label__rate;
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/** Traffic class */
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uint8_t tc;
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/** Hop limit */
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uint8_t hop_limit;
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/** SL and subnet local*/
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uint8_t sl__subnet_local;
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/** Local ACK timeout */
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uint8_t local_ack_timeout;
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} __attribute__ (( packed ));
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/** A communication management connection request
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*
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* Defined in section 12.6.5 of the IBA.
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*/
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struct ib_cm_connect_request {
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/** Local communication ID */
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uint32_t local_id;
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/** Reserved */
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uint32_t reserved0[1];
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/** Service ID */
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struct ib_gid_half service_id;
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/** Local CA GUID */
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struct ib_gid_half local_ca;
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/** Reserved */
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uint32_t reserved1[1];
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/** Local queue key */
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uint32_t local_qkey;
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/** Local QPN and responder resources*/
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uint32_t local_qpn__responder_resources;
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/** Local EECN and initiator depth */
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uint32_t local_eecn__initiator_depth;
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/** Remote EECN, remote CM response timeout, transport service
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* type, EE flow control
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*/
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uint32_t remote_eecn__remote_timeout__service_type__ee_flow_ctrl;
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/** Starting PSN, local CM response timeout and retry count */
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uint32_t starting_psn__local_timeout__retry_count;
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/** Partition key */
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uint16_t pkey;
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/** Path packet payload MTU, RDC exists, RNR retry count */
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uint8_t payload_mtu__rdc_exists__rnr_retry;
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/** Max CM retries and SRQ */
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uint8_t max_cm_retries__srq;
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/** Primary path */
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struct ib_cm_path primary;
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/** Alternate path */
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struct ib_cm_path alternate;
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/** Private data */
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uint8_t private_data[92];
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} __attribute__ (( packed ));
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/** CM transport types */
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#define IB_CM_TRANSPORT_RC 0
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#define IB_CM_TRANSPORT_UC 1
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#define IB_CM_TRANSPORT_RD 2
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/** A communication management connection rejection
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*
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* Defined in section 12.6.7 of the IBA.
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*/
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struct ib_cm_connect_reject {
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/** Local communication ID */
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uint32_t local_id;
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/** Remote communication ID */
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uint32_t remote_id;
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/** Message rejected */
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uint8_t message;
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/** Reject information length */
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uint8_t info_len;
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/** Rejection reason */
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uint16_t reason;
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/** Additional rejection information */
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uint8_t info[72];
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/** Private data */
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uint8_t private_data[148];
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} __attribute__ (( packed ));
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/** A communication management connection reply
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*
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* Defined in section 12.6.8 of the IBA.
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*/
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struct ib_cm_connect_reply {
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/** Local communication ID */
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uint32_t local_id;
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/** Remote communication ID */
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uint32_t remote_id;
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/** Local queue key */
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uint32_t local_qkey;
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/** Local QPN */
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uint32_t local_qpn;
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/** Local EECN */
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uint32_t local_eecn;
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/** Starting PSN */
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uint32_t starting_psn;
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/** Responder resources */
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uint8_t responder_resources;
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/** Initiator depth */
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uint8_t initiator_depth;
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/** Target ACK delay, failover accepted, and end-to-end flow control */
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uint8_t target_ack_delay__failover_accepted__ee_flow_ctrl;
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/** RNR retry count, SRQ */
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uint8_t rnr_retry__srq;
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/** Local CA GUID */
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struct ib_gid_half local_ca;
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/** Private data */
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uint8_t private_data[196];
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} __attribute__ (( packed ));
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/** A communication management ready to use reply
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*
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* Defined in section 12.6.9 of the IBA.
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*/
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struct ib_cm_ready_to_use {
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/** Local communication ID */
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uint32_t local_id;
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/** Remote communication ID */
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uint32_t remote_id;
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/** Private data */
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uint8_t private_data[224];
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} __attribute__ (( packed ));
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/** A communication management attribute */
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union ib_cm_data {
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struct ib_cm_connect_request connect_request;
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struct ib_cm_connect_reject connect_reject;
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struct ib_cm_connect_reply connect_reply;
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struct ib_cm_ready_to_use ready_to_use;
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uint8_t bytes[232];
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} __attribute__ (( packed ));
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/*****************************************************************************
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*
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* MADs
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@@ -362,11 +528,18 @@ struct ib_mad_sa {
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union ib_sa_data sa_data;
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} __attribute__ (( packed ));
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/** A communication management MAD */
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struct ib_mad_cm {
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struct ib_mad_hdr mad_hdr;
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union ib_cm_data cm_data;
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} __attribute__ (( packed ));
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/** A management datagram */
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union ib_mad {
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struct ib_mad_hdr hdr;
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struct ib_mad_smp smp;
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struct ib_mad_sa sa;
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struct ib_mad_cm cm;
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uint8_t bytes[256];
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} __attribute__ (( packed ));
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