Exemple #1
0
int __recvpath
psmi_mq_handle_data(psm_mq_req_t req, psm_epaddr_t epaddr,
		    uint32_t egrid, uint32_t offset,
		    const void *buf, uint32_t nbytes)
{
    psm_mq_t mq;
    int rc;
    
    if (req == NULL) goto no_req;

    mq = req->mq;
    if (req->state == MQ_STATE_MATCHED)
	rc = MQ_RET_MATCH_OK;
    else {
	psmi_assert(req->state == MQ_STATE_UNEXP);
	rc = MQ_RET_UNEXP_OK;
    }

    psmi_assert(req->egrid.egr_data == egrid);
    psmi_mq_req_copy(req, epaddr, offset, buf, nbytes);

    if (req->send_msgoff == req->send_msglen) {
	if (req->type & MQE_TYPE_EGRLONG) {
	    STAILQ_REMOVE(&epaddr->mctxt_master->egrlong,
				req, psm_mq_req, nextq);
	}
	    
	if (req->state == MQ_STATE_MATCHED) {
	    req->state = MQ_STATE_COMPLETE;
	    mq_qq_append(&mq->completed_q, req);
	}
	else { /* MQ_STATE_UNEXP */
	    req->state = MQ_STATE_COMPLETE;
	}
	_IPATH_VDBG("epaddr=%s completed %d byte send, state=%d\n", 
		    psmi_epaddr_get_name(epaddr->epid),
		    (int)req->send_msglen, req->state);
    }

    return rc;

no_req:
    mq = epaddr->ep->mq;
    req = psmi_mq_req_alloc(mq, MQE_TYPE_RECV);
    psmi_assert(req != NULL);

    req->egrid.egr_data = egrid;
    req->recv_msgoff = offset;
    req->recv_msglen = nbytes;
    req->buf = psmi_mq_sysbuf_alloc(mq, nbytes);
    psmi_mq_mtucpy(req->buf, buf, nbytes);

    STAILQ_INSERT_TAIL(&epaddr->mctxt_master->egrdata, req, nextq);

    return MQ_RET_UNEXP_OK;
}
int __recvpath
psmi_mq_handle_data(psm_mq_req_t req, psm_epaddr_t epaddr, 
		    const void *buf, uint32_t nbytes)
{
    psm_mq_t mq = req->mq;
    int rc;
    
    if (req->state == MQ_STATE_MATCHED)
	rc = MQ_RET_MATCH_OK;
    else {
	psmi_assert(req->state == MQ_STATE_UNEXP);
	rc = MQ_RET_UNEXP_OK;
    }

    psmi_mq_req_copy(req, epaddr, buf, nbytes);

    if (req->send_msgoff == req->send_msglen) {
	if (req->type & MQE_TYPE_EGRLONG) {
	    int flowid = req->egrid.egr_flowid;
	    psmi_assert(STAILQ_FIRST(&epaddr->egrlong[flowid]) == req);
	    STAILQ_REMOVE_HEAD(&epaddr->egrlong[flowid], nextq);
	}
	    
	/* Whatever is leftover in the posted message should be now marked as
	 * undefined.
	 * XXX Sends not supported yet.
	 */
#if 0
#ifdef PSM_VALGRIND
	if (req->send_msglen < req->buf_len)
	    VALGRIND_MAKE_MEM_UNDEFINED(
		(void *) ((uintptr_t) req->buf + req->send_msglen), 
		req->buf_len - req->send_msglen);
#endif
#endif
	if (req->state == MQ_STATE_MATCHED) {
	    req->state = MQ_STATE_COMPLETE;
	    mq_qq_append(&mq->completed_q, req);
	}
	else { /* MQ_STATE_UNEXP */
	    req->state = MQ_STATE_COMPLETE;
	}
	_IPATH_VDBG("epaddr=%s completed %d byte send, state=%d\n", 
		    psmi_epaddr_get_name(epaddr->epid),
		    (int)req->send_msglen, req->state);
    }

    return rc;
}
Exemple #3
0
void
psmi_mq_handle_rts_complete(psm_mq_req_t req) 
{
    psm_mq_t mq = req->mq;

    /* Stats on rendez-vous messages */
    psmi_mq_stats_rts_account(req);
    req->state = MQ_STATE_COMPLETE;
    mq_qq_append(&mq->completed_q, req);
#ifdef PSM_VALGRIND
    if (MQE_TYPE_IS_RECV(req->type))
	PSM_VALGRIND_DEFINE_MQ_RECV(req->buf, req->buf_len, req->recv_msglen);
    else
	VALGRIND_MAKE_MEM_DEFINED(req->buf, req->buf_len);
#endif
    _IPATH_VDBG("RTS complete, req=%p, recv_msglen = %d\n", 
		    req, req->recv_msglen);
    return;
}
Exemple #4
0
/*
 * Note, epaddr is the master.
 */
int __recvpath
psmi_mq_handle_outoforder_queue(psm_epaddr_t epaddr)
{
    psm_mq_t mq = epaddr->ep->mq;
    psm_mq_req_t ureq, ereq;
    uint32_t msglen;

    next_ooo:
    ureq = mq_ooo_match(&epaddr->outoforder_q, epaddr->mctxt_recv_seqnum);
    if (ureq == NULL) return 0;
    epaddr->mctxt_recv_seqnum++;
    epaddr->outoforder_c--;

    ereq = mq_req_match(&(mq->expected_q), ureq->tag, 1);
    if (ereq == NULL) {
	mq_sq_append(&mq->unexpected_q, ureq);
	if (epaddr->outoforder_c) goto next_ooo;
	return 0;
    }

    psmi_assert(MQE_TYPE_IS_RECV(ereq->type));
    ereq->tag = ureq->tag;
    msglen = mq_set_msglen(ereq, ereq->buf_len, ureq->send_msglen);

    switch (ureq->state) {
    case MQ_STATE_COMPLETE:
	if (ureq->buf != NULL) { /* 0-byte don't alloc a sysbuf */
	    psmi_mq_mtucpy(ereq->buf,
		(const void *)ureq->buf, msglen);
	    psmi_mq_sysbuf_free(mq, ureq->buf);
	}
	ereq->state = MQ_STATE_COMPLETE;
	mq_qq_append(&mq->completed_q, ereq);
	break;
    case MQ_STATE_UNEXP: /* not done yet */
	ereq->type = ureq->type;
	ereq->egrid = ureq->egrid;
	ereq->epaddr = ureq->epaddr;
	ereq->send_msgoff = ureq->send_msgoff;
	ereq->recv_msgoff = min(ureq->recv_msgoff, msglen);
	psmi_mq_mtucpy(ereq->buf,
	    (const void *)ureq->buf, ereq->recv_msgoff);
	psmi_mq_sysbuf_free(mq, ureq->buf);
	ereq->state = MQ_STATE_MATCHED;
	STAILQ_INSERT_AFTER(&ureq->epaddr->mctxt_master->egrlong,
			ureq, ereq, nextq);
	STAILQ_REMOVE(&ureq->epaddr->mctxt_master->egrlong,
			ureq, psm_mq_req, nextq);
	break;
    case MQ_STATE_UNEXP_RV: /* rendez-vous ... */
	ereq->state = MQ_STATE_MATCHED;
	ereq->rts_peer = ureq->rts_peer;
	ereq->rts_sbuf = ureq->rts_sbuf;
	ereq->send_msgoff = 0;
	ereq->rts_callback = ureq->rts_callback;
	ereq->rts_reqidx_peer = ureq->rts_reqidx_peer;
	ereq->type = ureq->type;
	ereq->rts_callback(ereq, 0);
	break;
    default:
	fprintf(stderr, "Unexpected state %d in req %p\n", ureq->state, ureq);
	fprintf(stderr, "type=%d, mq=%p, tag=%p\n",
			ureq->type, ureq->mq, (void *)(uintptr_t)ureq->tag);
	abort();
    }

    psmi_mq_req_free(ureq);
    if (epaddr->outoforder_c) goto next_ooo;
    return 0;
}
Exemple #5
0
/* 
 * This handles the regular (i.e. non-rendezvous MPI envelopes) 
 */
int __recvpath
psmi_mq_handle_envelope(psm_mq_t mq, uint16_t mode, psm_epaddr_t epaddr,
		   uint64_t tag, psmi_egrid_t egrid, uint32_t send_msglen, 
		   const void *payload, uint32_t paylen)
{
    psm_mq_req_t req;
    uint32_t msglen;
    int rc;

    psmi_assert(epaddr != NULL);

    req = mq_req_match(&(mq->expected_q), tag, 1);

    if (req) { /* we have a match */
	psmi_assert(MQE_TYPE_IS_RECV(req->type));
	req->tag = tag;
	msglen = mq_set_msglen(req, req->buf_len, send_msglen);

	_IPATH_VDBG("from=%s match=YES (req=%p) mode=%x mqtag=%"
		PRIx64" msglen=%d paylen=%d\n", psmi_epaddr_get_name(epaddr->epid), 
		req, mode, tag, msglen, paylen);

	switch(mode) {
	    case MQ_MSG_TINY:
		PSM_VALGRIND_DEFINE_MQ_RECV(req->buf, req->buf_len, msglen);
		mq_copy_tiny((uint32_t *)req->buf, (uint32_t *)payload, msglen);
		req->state = MQ_STATE_COMPLETE;
		mq_qq_append(&mq->completed_q, req);
		break;

	    case MQ_MSG_SHORT: /* message fits in 1 payload */
		PSM_VALGRIND_DEFINE_MQ_RECV(req->buf, req->buf_len, msglen);
		psmi_mq_mtucpy(req->buf, payload, msglen);
		req->state = MQ_STATE_COMPLETE;
		mq_qq_append(&mq->completed_q, req);
		break;

	    case MQ_MSG_LONG:
		req->egrid = egrid;
		req->state = MQ_STATE_MATCHED;
		req->type |= MQE_TYPE_EGRLONG;
		req->send_msgoff = req->recv_msgoff = 0;
		STAILQ_INSERT_TAIL(&epaddr->mctxt_master->egrlong, req, nextq);
		_IPATH_VDBG("exp MSG_LONG %d of length %d bytes pay=%d\n", 
			egrid.egr_msgno, msglen, paylen);
		if (paylen > 0)
		    psmi_mq_handle_data(req, epaddr,
			egrid.egr_data, 0, payload, paylen);
		psmi_mq_handle_egrdata(mq, req, epaddr);
		break;

	    default:
		psmi_handle_error(PSMI_EP_NORETURN, PSM_INTERNAL_ERR,
			    "Internal error, unknown packet 0x%x", mode);
	}

	mq->stats.rx_user_bytes += msglen;
	mq->stats.rx_user_num++;

	rc = MQ_RET_MATCH_OK;
	if (mode == MQ_MSG_LONG)
	    return rc;
    }
    else
	rc =  psmi_mq_handle_envelope_unexpected(mq, mode, epaddr, tag,
		    egrid, send_msglen, payload, paylen);

    return rc;
}