ib_mcast.h File Reference

Infiniband multicast groups. More...

#include <gpxe/infiniband.h>

Go to the source code of this file.

Data Structures
struct	ib_mc_membership
	An Infiniband multicast group membership. More...
Functions
	FILE_LICENCE (GPL2_OR_LATER)
int	ib_mcast_join (struct ib_device *ibdev, struct ib_queue_pair *qp, struct ib_mc_membership *membership, struct ib_gid *gid, void(*joined)(struct ib_device *ibdev, struct ib_queue_pair *qp, struct ib_mc_membership *memb, int rc, union ib_mad *mad))
void	ib_mcast_leave (struct ib_device *ibdev, struct ib_queue_pair *qp, struct ib_mc_membership *membership)
	Leave multicast group.

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Detailed Description

Infiniband multicast groups.

Definition in file ib_mcast.h.

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Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

int ib_mcast_join	(	struct ib_device *	ibdev,
		struct ib_queue_pair *	qp,
		struct ib_mc_membership *	membership,
		struct ib_gid *	gid,
		void(*)(struct ib_device *ibdev, struct ib_queue_pair *qp, struct ib_mc_membership *memb, int rc, union ib_mad *mad)	joined
	)

void ib_mcast_leave	(	struct ib_device *	ibdev,
		struct ib_queue_pair *	qp,
		struct ib_mc_membership *	membership
	)

Leave multicast group.

Parameters:

	ibdev	Infiniband device
	qp	Queue pair
	membership	Multicast group membership

Definition at line 192 of file ib_mcast.c.

References DBGC, ib_gid::dwords, ib_mc_membership::gid, ib_device::gsi, ib_destroy_madx(), ib_mcast_detach(), ib_mcast_mad(), ib_mi_send(), ib_mc_membership::madx, ntohl, NULL, ib_queue_pair::qpn, strerror(), and ib_gid::u.

Referenced by ipoib_leave_broadcast_group().

                                                            {
        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 ) );
        }
}