diff options
Diffstat (limited to 'gpxe/src/net/infiniband/ib_mcast.c')
| -rw-r--r-- | gpxe/src/net/infiniband/ib_mcast.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/gpxe/src/net/infiniband/ib_mcast.c b/gpxe/src/net/infiniband/ib_mcast.c deleted file mode 100644 index 5cb395de..00000000 --- a/gpxe/src/net/infiniband/ib_mcast.c +++ /dev/null @@ -1,218 +0,0 @@ -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdint.h> -#include <string.h> -#include <byteswap.h> -#include <errno.h> -#include <gpxe/list.h> -#include <gpxe/infiniband.h> -#include <gpxe/ib_mi.h> -#include <gpxe/ib_mcast.h> - -/** @file - * - * Infiniband multicast groups - * - */ - -/** - * Generate multicast membership MAD - * - * @v ibdev Infiniband device - * @v gid Multicast GID - * @v join Join (rather than leave) group - * @v mad MAD to fill in - */ -static void ib_mcast_mad ( struct ib_device *ibdev, struct ib_gid *gid, - int join, union ib_mad *mad ) { - struct ib_mad_sa *sa = &mad->sa; - - /* Construct multicast membership record request */ - memset ( sa, 0, sizeof ( *sa ) ); - sa->mad_hdr.mgmt_class = IB_MGMT_CLASS_SUBN_ADM; - sa->mad_hdr.class_version = IB_SA_CLASS_VERSION; - sa->mad_hdr.method = - ( join ? IB_MGMT_METHOD_SET : IB_MGMT_METHOD_DELETE ); - sa->mad_hdr.attr_id = htons ( IB_SA_ATTR_MC_MEMBER_REC ); - sa->sa_hdr.comp_mask[1] = - htonl ( IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID | - IB_SA_MCMEMBER_REC_JOIN_STATE ); - sa->sa_data.mc_member_record.scope__join_state = 1; - memcpy ( &sa->sa_data.mc_member_record.mgid, gid, - sizeof ( sa->sa_data.mc_member_record.mgid ) ); - memcpy ( &sa->sa_data.mc_member_record.port_gid, &ibdev->gid, - sizeof ( sa->sa_data.mc_member_record.port_gid ) ); -} - -/** - * Handle multicast membership record join response - * - * @v ibdev Infiniband device - * @v mi Management interface - * @v madx Management transaction - * @v rc Status code - * @v mad Received MAD (or NULL on error) - * @v av Source address vector (or NULL on error) - */ -static void ib_mcast_complete ( struct ib_device *ibdev, - struct ib_mad_interface *mi __unused, - struct ib_mad_transaction *madx, - int rc, union ib_mad *mad, - struct ib_address_vector *av __unused ) { - struct ib_mc_membership *membership = ib_madx_get_ownerdata ( madx ); - struct ib_queue_pair *qp = membership->qp; - struct ib_gid *gid = &membership->gid; - struct ib_mc_member_record *mc_member_record = - &mad->sa.sa_data.mc_member_record; - int joined; - unsigned long qkey; - - /* Report failures */ - if ( ( rc == 0 ) && ( mad->hdr.status != htons ( IB_MGMT_STATUS_OK ) )) - rc = -ENOTCONN; - if ( rc != 0 ) { - DBGC ( ibdev, "IBDEV %p QPN %lx join failed: %s\n", - ibdev, qp->qpn, strerror ( rc ) ); - goto out; - } - - /* Extract values from MAD */ - joined = ( mad->hdr.method == IB_MGMT_METHOD_GET_RESP ); - qkey = ntohl ( mc_member_record->qkey ); - DBGC ( ibdev, "IBDEV %p QPN %lx %s %08x:%08x:%08x:%08x qkey %lx\n", - ibdev, qp->qpn, ( joined ? "joined" : "left" ), - ntohl ( gid->u.dwords[0] ), ntohl ( gid->u.dwords[1] ), - ntohl ( gid->u.dwords[2] ), ntohl ( gid->u.dwords[3] ), - qkey ); - - /* Set queue key */ - qp->qkey = qkey; - if ( ( rc = ib_modify_qp ( ibdev, qp ) ) != 0 ) { - DBGC ( ibdev, "IBDEV %p QPN %lx could not modify qkey: %s\n", - ibdev, qp->qpn, strerror ( rc ) ); - goto out; - } - - out: - /* Destroy the completed transaction */ - ib_destroy_madx ( ibdev, mi, madx ); - membership->madx = NULL; - - /* Hand off to upper completion handler */ - membership->complete ( ibdev, qp, membership, rc, mad ); -} - -/** Multicast membership management transaction completion operations */ -static struct ib_mad_transaction_operations ib_mcast_op = { - .complete = ib_mcast_complete, -}; - -/** - * Join multicast group - * - * @v ibdev Infiniband device - * @v qp Queue pair - * @v membership Multicast group membership - * @v gid Multicast GID to join - * @v joined Join completion handler - * @ret rc Return status code - */ -int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp, - struct ib_mc_membership *membership, struct ib_gid *gid, - void ( * complete ) ( struct ib_device *ibdev, - struct ib_queue_pair *qp, - struct ib_mc_membership *membership, - int rc, union ib_mad *mad ) ) { - union ib_mad mad; - int rc; - - DBGC ( ibdev, "IBDEV %p QPN %lx joining %08x:%08x:%08x:%08x\n", - ibdev, qp->qpn, ntohl ( gid->u.dwords[0] ), - ntohl ( gid->u.dwords[1] ), ntohl ( gid->u.dwords[2] ), - ntohl ( gid->u.dwords[3] ) ); - - /* Initialise structure */ - membership->qp = qp; - memcpy ( &membership->gid, gid, sizeof ( membership->gid ) ); - membership->complete = complete; - - /* Attach queue pair to multicast GID */ - if ( ( rc = ib_mcast_attach ( ibdev, qp, gid ) ) != 0 ) { - DBGC ( ibdev, "IBDEV %p QPN %lx could not attach: %s\n", - ibdev, qp->qpn, strerror ( rc ) ); - goto err_mcast_attach; - } - - /* Initiate multicast membership join */ - ib_mcast_mad ( ibdev, gid, 1, &mad ); - membership->madx = ib_create_madx ( ibdev, ibdev->gsi, &mad, NULL, - &ib_mcast_op ); - if ( ! membership->madx ) { - DBGC ( ibdev, "IBDEV %p QPN %lx could not create join " - "transaction\n", ibdev, qp->qpn ); - rc = -ENOMEM; - goto err_create_madx; - } - ib_madx_set_ownerdata ( membership->madx, membership ); - - return 0; - - ib_destroy_madx ( ibdev, ibdev->gsi, membership->madx ); - err_create_madx: - ib_mcast_detach ( ibdev, qp, gid ); - err_mcast_attach: - return rc; -} - -/** - * Leave multicast group - * - * @v ibdev Infiniband device - * @v qp Queue pair - * @v membership Multicast group membership - */ -void ib_mcast_leave ( struct ib_device *ibdev, struct ib_queue_pair *qp, - struct ib_mc_membership *membership ) { - struct ib_gid *gid = &membership->gid; - union ib_mad mad; - int rc; - - DBGC ( ibdev, "IBDEV %p QPN %lx leaving %08x:%08x:%08x:%08x\n", - ibdev, qp->qpn, ntohl ( gid->u.dwords[0] ), - ntohl ( gid->u.dwords[1] ), ntohl ( gid->u.dwords[2] ), - ntohl ( gid->u.dwords[3] ) ); - - /* Detach from multicast GID */ - ib_mcast_detach ( ibdev, qp, &membership->gid ); - - /* Cancel multicast membership join, if applicable */ - if ( membership->madx ) { - ib_destroy_madx ( ibdev, ibdev->gsi, membership->madx ); - membership->madx = NULL; - } - - /* Send a single group leave MAD */ - ib_mcast_mad ( ibdev, &membership->gid, 0, &mad ); - if ( ( rc = ib_mi_send ( ibdev, ibdev->gsi, &mad, NULL ) ) != 0 ) { - DBGC ( ibdev, "IBDEV %p QPN %lx could not send leave request: " - "%s\n", ibdev, qp->qpn, strerror ( rc ) ); - } -} |