+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
- * Portions Copyright (C) 2013 CohortFS, LLC
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation. See file COPYING.
- *
- */
-
-#include "XioMsg.h"
-#include "XioConnection.h"
-#include "XioMessenger.h"
-#include "messages/MDataPing.h"
-#include "msg/msg_types.h"
-#include "auth/none/AuthNoneProtocol.h" // XXX
-
-#include "include/assert.h"
-#include "common/dout.h"
-
-extern struct xio_mempool *xio_msgr_mpool;
-extern struct xio_mempool *xio_msgr_noreg_mpool;
-
-#define dout_subsys ceph_subsys_xio
-
-void print_xio_msg_hdr(CephContext *cct, const char *tag,
- const XioMsgHdr &hdr, const struct xio_msg *msg)
-{
- if (msg) {
- ldout(cct,4) << tag <<
- " xio msg:" <<
- " sn: " << msg->sn <<
- " timestamp: " << msg->timestamp <<
- dendl;
- }
-
- ldout(cct,4) << tag <<
- " ceph header: " <<
- " front_len: " << hdr.hdr->front_len <<
- " seq: " << hdr.hdr->seq <<
- " tid: " << hdr.hdr->tid <<
- " type: " << hdr.hdr->type <<
- " prio: " << hdr.hdr->priority <<
- " name type: " << (int) hdr.hdr->src.type <<
- " name num: " << (int) hdr.hdr->src.num <<
- " version: " << hdr.hdr->version <<
- " compat_version: " << hdr.hdr->compat_version <<
- " front_len: " << hdr.hdr->front_len <<
- " middle_len: " << hdr.hdr->middle_len <<
- " data_len: " << hdr.hdr->data_len <<
- " xio header: " <<
- " msg_cnt: " << hdr.msg_cnt <<
- dendl;
-
- ldout(cct,4) << tag <<
- " ceph footer: " <<
- " front_crc: " << hdr.ftr->front_crc <<
- " middle_crc: " << hdr.ftr->middle_crc <<
- " data_crc: " << hdr.ftr->data_crc <<
- " sig: " << hdr.ftr->sig <<
- " flags: " << (uint32_t) hdr.ftr->flags <<
- dendl;
-}
-
-void print_ceph_msg(CephContext *cct, const char *tag, Message *m)
-{
- if (m->get_magic() & (MSG_MAGIC_XIO & MSG_MAGIC_TRACE_DTOR)) {
- ceph_msg_header& header = m->get_header();
- ldout(cct,4) << tag << " header version " << header.version <<
- " compat version " << header.compat_version <<
- dendl;
- }
-}
-
-#undef dout_prefix
-#define dout_prefix conn_prefix(_dout)
-ostream& XioConnection::conn_prefix(std::ostream *_dout) {
- return *_dout << "-- " << get_messenger()->get_myinst().addr << " >> " << peer_addr
- << " peer=" << peer.name.type_str()
- << " conn=" << conn << " sess=" << session << " ";
-}
-
-XioConnection::XioConnection(XioMessenger *m, XioConnection::type _type,
- const entity_inst_t& _peer) :
- Connection(m->cct, m),
- xio_conn_type(_type),
- portal(m->get_portal()),
- connected(false),
- peer(_peer),
- session(NULL),
- conn(NULL),
- magic(m->get_magic()),
- scount(0),
- send_ctr(0),
- in_seq(),
- cstate(this)
-{
- pthread_spin_init(&sp, PTHREAD_PROCESS_PRIVATE);
- set_peer_type(peer.name.type());
- set_peer_addr(peer.addr);
-
- Messenger::Policy policy;
- int64_t max_msgs = 0, max_bytes = 0, bytes_opt = 0;
- int xopt;
-
- policy = m->get_policy(peer_type);
-
- if (policy.throttler_messages) {
- max_msgs = policy.throttler_messages->get_max();
- ldout(m->cct,4) << "XioMessenger throttle_msgs: " << max_msgs << dendl;
- }
-
- xopt = m->cct->_conf->xio_queue_depth;
- if (max_msgs > xopt)
- xopt = max_msgs;
-
- /* set high mark for send, reserved 20% for credits */
- q_high_mark = xopt * 4 / 5;
- q_low_mark = q_high_mark/2;
-
- /* set send & receive msgs queue depth */
- xio_set_opt(NULL, XIO_OPTLEVEL_ACCELIO, XIO_OPTNAME_SND_QUEUE_DEPTH_MSGS,
- &xopt, sizeof(xopt));
- xio_set_opt(NULL, XIO_OPTLEVEL_ACCELIO, XIO_OPTNAME_RCV_QUEUE_DEPTH_MSGS,
- &xopt, sizeof(xopt));
-
- if (policy.throttler_bytes) {
- max_bytes = policy.throttler_bytes->get_max();
- ldout(m->cct,4) << "XioMessenger throttle_bytes: " << max_bytes << dendl;
- }
-
- bytes_opt = (2 << 28); /* default: 512 MB */
- if (max_bytes > bytes_opt)
- bytes_opt = max_bytes;
-
- /* set send & receive total bytes throttle */
- xio_set_opt(NULL, XIO_OPTLEVEL_ACCELIO, XIO_OPTNAME_SND_QUEUE_DEPTH_BYTES,
- &bytes_opt, sizeof(bytes_opt));
- xio_set_opt(NULL, XIO_OPTLEVEL_ACCELIO, XIO_OPTNAME_RCV_QUEUE_DEPTH_BYTES,
- &bytes_opt, sizeof(bytes_opt));
-
- ldout(m->cct,4) << "throttle_msgs: " << xopt << " throttle_bytes: " << bytes_opt << dendl;
-
- /* XXXX fake features, aieee! */
- set_features(XIO_ALL_FEATURES);
-}
-
-int XioConnection::send_message(Message *m)
-{
- XioMessenger *ms = static_cast<XioMessenger*>(get_messenger());
- return ms->_send_message(m, this);
-}
-
-void XioConnection::send_keepalive_or_ack(bool ack, const utime_t *tp)
-{
- /* If con is not in READY state, we need to queue the request */
- if (cstate.session_state.read() != XioConnection::UP) {
- pthread_spin_lock(&sp);
- if (cstate.session_state.read() != XioConnection::UP) {
- if (ack) {
- outgoing.ack = true;
- outgoing.ack_time = *tp;
- }
- else {
- outgoing.keepalive = true;
- }
- pthread_spin_unlock(&sp);
- return;
- }
- pthread_spin_unlock(&sp);
- }
-
- send_keepalive_or_ack_internal(ack, tp);
-}
-
-void XioConnection::send_keepalive_or_ack_internal(bool ack, const utime_t *tp)
-{
- XioCommand *xcmd = pool_alloc_xio_command(this);
- if (! xcmd) {
- /* could happen if Accelio has been shutdown */
- return;
- }
-
- struct ceph_timespec ts;
- if (ack) {
- assert(tp);
- tp->encode_timeval(&ts);
- xcmd->get_bl_ref().append(CEPH_MSGR_TAG_KEEPALIVE2_ACK);
- xcmd->get_bl_ref().append((char*)&ts, sizeof(ts));
- } else if (has_feature(CEPH_FEATURE_MSGR_KEEPALIVE2)) {
- utime_t t = ceph_clock_now();
- t.encode_timeval(&ts);
- xcmd->get_bl_ref().append(CEPH_MSGR_TAG_KEEPALIVE2);
- xcmd->get_bl_ref().append((char*)&ts, sizeof(ts));
- } else {
- xcmd->get_bl_ref().append(CEPH_MSGR_TAG_KEEPALIVE);
- }
-
- const std::list<buffer::ptr>& header = xcmd->get_bl_ref().buffers();
- assert(header.size() == 1); /* accelio header must be without scatter gather */
- list<bufferptr>::const_iterator pb = header.begin();
- assert(pb->length() < XioMsgHdr::get_max_encoded_length());
- struct xio_msg * msg = xcmd->get_xio_msg();
- msg->out.header.iov_base = (char*) pb->c_str();
- msg->out.header.iov_len = pb->length();
-
- ldout(msgr->cct,8) << __func__ << " sending command with tag " << (int)(*(char*)msg->out.header.iov_base)
- << " len " << msg->out.header.iov_len << dendl;
-
- portal->enqueue(this, xcmd);
-}
-
-
-int XioConnection::passive_setup()
-{
- /* XXX passive setup is a placeholder for (potentially active-side
- initiated) feature and auth* negotiation */
- static bufferlist authorizer_reply; /* static because fake */
- static CryptoKey session_key; /* ditto */
- bool authorizer_valid;
-
- XioMessenger *msgr = static_cast<XioMessenger*>(get_messenger());
-
- // fake an auth buffer
- EntityName name;
- name.set_type(peer.name.type());
-
- AuthNoneAuthorizer auth;
- auth.build_authorizer(name, peer.name.num());
-
- /* XXX fake authorizer! */
- msgr->ms_deliver_verify_authorizer(
- this, peer_type, CEPH_AUTH_NONE,
- auth.bl,
- authorizer_reply,
- authorizer_valid,
- session_key);
-
- /* notify hook */
- msgr->ms_deliver_handle_accept(this);
- msgr->ms_deliver_handle_fast_accept(this);
-
- /* try to insert in conns_entity_map */
- msgr->try_insert(this);
- return (0);
-}
-
-static inline XioDispatchHook* pool_alloc_xio_dispatch_hook(
- XioConnection *xcon, Message *m, XioInSeq& msg_seq)
-{
- struct xio_reg_mem mp_mem;
- int e = xpool_alloc(xio_msgr_noreg_mpool,
- sizeof(XioDispatchHook), &mp_mem);
- if (!!e)
- return NULL;
- XioDispatchHook *xhook = static_cast<XioDispatchHook*>(mp_mem.addr);
- new (xhook) XioDispatchHook(xcon, m, msg_seq, mp_mem);
- return xhook;
-}
-
-int XioConnection::handle_data_msg(struct xio_session *session,
- struct xio_msg *msg,
- int more_in_batch,
- void *cb_user_context)
-{
- struct xio_msg *tmsg = msg;
-
- /* XXX Accelio guarantees message ordering at
- * xio_session */
-
- if (! in_seq.p()) {
- if (!tmsg->in.header.iov_len) {
- ldout(msgr->cct,0) << __func__ << " empty header: packet out of sequence?" << dendl;
- xio_release_msg(msg);
- return 0;
- }
- const size_t sizeof_tag = 1;
- XioMsgCnt msg_cnt(
- buffer::create_static(tmsg->in.header.iov_len-sizeof_tag,
- ((char*) tmsg->in.header.iov_base)+sizeof_tag));
- ldout(msgr->cct,10) << __func__ << " receive msg " << "tmsg " << tmsg
- << " msg_cnt " << msg_cnt.msg_cnt
- << " iov_base " << tmsg->in.header.iov_base
- << " iov_len " << (int) tmsg->in.header.iov_len
- << " nents " << tmsg->in.pdata_iov.nents
- << " sn " << tmsg->sn << dendl;
- assert(session == this->session);
- in_seq.set_count(msg_cnt.msg_cnt);
- } else {
- /* XXX major sequence error */
- assert(! tmsg->in.header.iov_len);
- }
-
- in_seq.append(msg);
- if (in_seq.count() > 0) {
- return 0;
- }
-
- XioMessenger *msgr = static_cast<XioMessenger*>(get_messenger());
- XioDispatchHook *m_hook =
- pool_alloc_xio_dispatch_hook(this, NULL /* msg */, in_seq);
- XioInSeq& msg_seq = m_hook->msg_seq;
- in_seq.clear();
-
- ceph_msg_header header;
- ceph_msg_footer footer;
- buffer::list payload, middle, data;
-
- const utime_t recv_stamp = ceph_clock_now();
-
- ldout(msgr->cct,4) << __func__ << " " << "msg_seq.size()=" << msg_seq.size() <<
- dendl;
-
- struct xio_msg* msg_iter = msg_seq.begin();
- tmsg = msg_iter;
- XioMsgHdr hdr(header, footer,
- buffer::create_static(tmsg->in.header.iov_len,
- (char*) tmsg->in.header.iov_base));
-
- if (magic & (MSG_MAGIC_TRACE_XCON)) {
- if (hdr.hdr->type == 43) {
- print_xio_msg_hdr(msgr->cct, "on_msg", hdr, NULL);
- }
- }
-
- unsigned int ix, blen, iov_len;
- struct xio_iovec_ex *msg_iov, *iovs;
- uint32_t take_len, left_len = 0;
- char *left_base = NULL;
-
- ix = 0;
- blen = header.front_len;
-
- while (blen && (msg_iter != msg_seq.end())) {
- tmsg = msg_iter;
- iov_len = vmsg_sglist_nents(&tmsg->in);
- iovs = vmsg_sglist(&tmsg->in);
- for (; blen && (ix < iov_len); ++ix) {
- msg_iov = &iovs[ix];
-
- /* XXX need to detect any buffer which needs to be
- * split due to coalescing of a segment (front, middle,
- * data) boundary */
-
- take_len = MIN(blen, msg_iov->iov_len);
- payload.append(
- buffer::create_msg(
- take_len, (char*) msg_iov->iov_base, m_hook));
- blen -= take_len;
- if (! blen) {
- left_len = msg_iov->iov_len - take_len;
- if (left_len) {
- left_base = ((char*) msg_iov->iov_base) + take_len;
- }
- }
- }
- /* XXX as above, if a buffer is split, then we needed to track
- * the new start (carry) and not advance */
- if (ix == iov_len) {
- msg_seq.next(&msg_iter);
- ix = 0;
- }
- }
-
- if (magic & (MSG_MAGIC_TRACE_XCON)) {
- if (hdr.hdr->type == 43) {
- ldout(msgr->cct,4) << "front (payload) dump:";
- payload.hexdump( *_dout );
- *_dout << dendl;
- }
- }
-
- blen = header.middle_len;
-
- if (blen && left_len) {
- middle.append(
- buffer::create_msg(left_len, left_base, m_hook));
- left_len = 0;
- }
-
- while (blen && (msg_iter != msg_seq.end())) {
- tmsg = msg_iter;
- iov_len = vmsg_sglist_nents(&tmsg->in);
- iovs = vmsg_sglist(&tmsg->in);
- for (; blen && (ix < iov_len); ++ix) {
- msg_iov = &iovs[ix];
- take_len = MIN(blen, msg_iov->iov_len);
- middle.append(
- buffer::create_msg(
- take_len, (char*) msg_iov->iov_base, m_hook));
- blen -= take_len;
- if (! blen) {
- left_len = msg_iov->iov_len - take_len;
- if (left_len) {
- left_base = ((char*) msg_iov->iov_base) + take_len;
- }
- }
- }
- if (ix == iov_len) {
- msg_seq.next(&msg_iter);
- ix = 0;
- }
- }
-
- blen = header.data_len;
-
- if (blen && left_len) {
- data.append(
- buffer::create_msg(left_len, left_base, m_hook));
- left_len = 0;
- }
-
- while (blen && (msg_iter != msg_seq.end())) {
- tmsg = msg_iter;
- iov_len = vmsg_sglist_nents(&tmsg->in);
- iovs = vmsg_sglist(&tmsg->in);
- for (; blen && (ix < iov_len); ++ix) {
- msg_iov = &iovs[ix];
- data.append(
- buffer::create_msg(
- msg_iov->iov_len, (char*) msg_iov->iov_base, m_hook));
- blen -= msg_iov->iov_len;
- }
- if (ix == iov_len) {
- msg_seq.next(&msg_iter);
- ix = 0;
- }
- }
-
- /* update connection timestamp */
- recv = tmsg->timestamp;
-
- Message *m = decode_message(msgr->cct, msgr->crcflags, header, footer,
- payload, middle, data, this);
-
- if (m) {
- /* completion */
- m->set_connection(this);
-
- /* reply hook */
- m_hook->set_message(m);
- m->set_completion_hook(m_hook);
-
- /* trace flag */
- m->set_magic(magic);
-
- /* update timestamps */
- m->set_recv_stamp(recv_stamp);
- m->set_recv_complete_stamp(ceph_clock_now());
- m->set_seq(header.seq);
-
- /* MP-SAFE */
- state.set_in_seq(header.seq);
-
- /* XXXX validate peer type */
- if (peer_type != (int) hdr.peer_type) { /* XXX isn't peer_type -1? */
- peer_type = hdr.peer_type;
- peer_addr = hdr.addr;
- peer.addr = peer_addr;
- peer.name = entity_name_t(hdr.hdr->src);
- if (xio_conn_type == XioConnection::PASSIVE) {
- /* XXX kick off feature/authn/authz negotiation
- * nb: very possibly the active side should initiate this, but
- * for now, call a passive hook so OSD and friends can create
- * sessions without actually negotiating
- */
- passive_setup();
- }
- }
-
- if (magic & (MSG_MAGIC_TRACE_XCON)) {
- ldout(msgr->cct,4) << "decode m is " << m->get_type() << dendl;
- }
-
- /* dispatch it */
- msgr->ds_dispatch(m);
- } else {
- /* responds for undecoded messages and frees hook */
- ldout(msgr->cct,4) << "decode m failed" << dendl;
- m_hook->on_err_finalize(this);
- }
-
- return 0;
-}
-
-int XioConnection::on_msg(struct xio_session *session,
- struct xio_msg *msg,
- int more_in_batch,
- void *cb_user_context)
-{
- char tag = CEPH_MSGR_TAG_MSG;
- if (msg->in.header.iov_len)
- tag = *(char*)msg->in.header.iov_base;
-
- ldout(msgr->cct,8) << __func__ << " receive msg with iov_len "
- << (int) msg->in.header.iov_len << " tag " << (int)tag << dendl;
-
- //header_len_without_tag is only meaningful in case we have tag
- size_t header_len_without_tag = msg->in.header.iov_len - sizeof(tag);
-
- switch(tag) {
- case CEPH_MSGR_TAG_MSG:
- ldout(msgr->cct, 20) << __func__ << " got data message" << dendl;
- return handle_data_msg(session, msg, more_in_batch, cb_user_context);
-
- case CEPH_MSGR_TAG_KEEPALIVE:
- ldout(msgr->cct, 20) << __func__ << " got KEEPALIVE" << dendl;
- set_last_keepalive(ceph_clock_now());
- break;
-
- case CEPH_MSGR_TAG_KEEPALIVE2:
- if (header_len_without_tag < sizeof(ceph_timespec)) {
- lderr(msgr->cct) << __func__ << " too few data for KEEPALIVE2: got " << header_len_without_tag <<
- " bytes instead of " << sizeof(ceph_timespec) << " bytes" << dendl;
- }
- else {
- ceph_timespec *t = (ceph_timespec *) ((char*)msg->in.header.iov_base + sizeof(tag));
- utime_t kp_t = utime_t(*t);
- ldout(msgr->cct, 20) << __func__ << " got KEEPALIVE2 with timestamp" << kp_t << dendl;
- send_keepalive_or_ack(true, &kp_t);
- set_last_keepalive(ceph_clock_now());
- }
-
- break;
-
- case CEPH_MSGR_TAG_KEEPALIVE2_ACK:
- if (header_len_without_tag < sizeof(ceph_timespec)) {
- lderr(msgr->cct) << __func__ << " too few data for KEEPALIVE2_ACK: got " << header_len_without_tag <<
- " bytes instead of " << sizeof(ceph_timespec) << " bytes" << dendl;
- }
- else {
- ceph_timespec *t = (ceph_timespec *) ((char*)msg->in.header.iov_base + sizeof(tag));
- utime_t kp_t(*t);
- ldout(msgr->cct, 20) << __func__ << " got KEEPALIVE2_ACK with timestamp" << kp_t << dendl;
- set_last_keepalive_ack(kp_t);
- }
- break;
-
- default:
- lderr(msgr->cct) << __func__ << " unsupported message tag " << (int) tag << dendl;
- assert(! "unsupported message tag");
- }
-
- xio_release_msg(msg);
- return 0;
-}
-
-
-int XioConnection::on_ow_msg_send_complete(struct xio_session *session,
- struct xio_msg *req,
- void *conn_user_context)
-{
- /* requester send complete (one-way) */
- uint64_t rc = ++scount;
-
- XioSend* xsend = static_cast<XioSend*>(req->user_context);
- if (unlikely(magic & MSG_MAGIC_TRACE_CTR)) {
- if (unlikely((rc % 1000000) == 0)) {
- std::cout << "xio finished " << rc << " " << time(0) << std::endl;
- }
- } /* trace ctr */
-
- ldout(msgr->cct,11) << "on_msg_delivered xcon: " << xsend->xcon <<
- " msg: " << req << " sn: " << req->sn << dendl;
-
- XioMsg *xmsg = dynamic_cast<XioMsg*>(xsend);
- if (xmsg) {
- ldout(msgr->cct,11) << "on_msg_delivered xcon: " <<
- " type: " << xmsg->m->get_type() << " tid: " << xmsg->m->get_tid() <<
- " seq: " << xmsg->m->get_seq() << dendl;
- }
-
- --send_ctr; /* atomic, because portal thread */
-
- /* unblock flow-controlled connections, avoid oscillation */
- if (unlikely(cstate.session_state.read() ==
- XioConnection::FLOW_CONTROLLED)) {
- if ((send_ctr <= uint32_t(xio_qdepth_low_mark())) &&
- (1 /* XXX memory <= memory low-water mark */)) {
- cstate.state_up_ready(XioConnection::CState::OP_FLAG_NONE);
- ldout(msgr->cct,2) << "on_msg_delivered xcon: " << xsend->xcon
- << " up_ready from flow_controlled" << dendl;
- }
- }
-
- xsend->put();
-
- return 0;
-} /* on_msg_delivered */
-
-void XioConnection::msg_send_fail(XioSend *xsend, int code)
-{
- ldout(msgr->cct,2) << "xio_send_msg FAILED xcon: " << this <<
- " msg: " << xsend->get_xio_msg() << " code=" << code <<
- " (" << xio_strerror(code) << ")" << dendl;
- /* return refs taken for each xio_msg */
- xsend->put_msg_refs();
-} /* msg_send_fail */
-
-void XioConnection::msg_release_fail(struct xio_msg *msg, int code)
-{
- ldout(msgr->cct,2) << "xio_release_msg FAILED xcon: " << this <<
- " msg: " << msg << "code=" << code <<
- " (" << xio_strerror(code) << ")" << dendl;
-} /* msg_release_fail */
-
-int XioConnection::flush_out_queues(uint32_t flags) {
- XioMessenger* msgr = static_cast<XioMessenger*>(get_messenger());
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_lock(&sp);
-
- if (outgoing.keepalive) {
- outgoing.keepalive = false;
- send_keepalive_or_ack_internal();
- }
-
- if (outgoing.ack) {
- outgoing.ack = false;
- send_keepalive_or_ack_internal(true, &outgoing.ack_time);
- }
-
- // send deferred 1 (direct backpresssure)
- if (outgoing.requeue.size() > 0)
- portal->requeue(this, outgoing.requeue);
-
- // send deferred 2 (sent while deferred)
- int ix, q_size = outgoing.mqueue.size();
- for (ix = 0; ix < q_size; ++ix) {
- Message::Queue::iterator q_iter = outgoing.mqueue.begin();
- Message* m = &(*q_iter);
- outgoing.mqueue.erase(q_iter);
- msgr->_send_message_impl(m, this);
- }
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_unlock(&sp);
- return 0;
-}
-
-int XioConnection::discard_out_queues(uint32_t flags)
-{
- Message::Queue disc_q;
- XioSubmit::Queue deferred_q;
-
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_lock(&sp);
-
- /* the two send queues contain different objects:
- * - anything on the mqueue is a Message
- * - anything on the requeue is an XioSend
- */
- Message::Queue::const_iterator i1 = disc_q.end();
- disc_q.splice(i1, outgoing.mqueue);
-
- XioSubmit::Queue::const_iterator i2 = deferred_q.end();
- deferred_q.splice(i2, outgoing.requeue);
-
- outgoing.keepalive = outgoing.ack = false;
-
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_unlock(&sp);
-
- // mqueue
- while (!disc_q.empty()) {
- Message::Queue::iterator q_iter = disc_q.begin();
- Message* m = &(*q_iter);
- disc_q.erase(q_iter);
- m->put();
- }
-
- // requeue
- while (!deferred_q.empty()) {
- XioSubmit::Queue::iterator q_iter = deferred_q.begin();
- XioSubmit* xs = &(*q_iter);
- XioSend* xsend;
- switch (xs->type) {
- case XioSubmit::OUTGOING_MSG:
- xsend = static_cast<XioSend*>(xs);
- deferred_q.erase(q_iter);
- // release once for each chained xio_msg
- xsend->put(xsend->get_msg_count());
- break;
- case XioSubmit::INCOMING_MSG_RELEASE:
- deferred_q.erase(q_iter);
- portal->release_xio_msg(static_cast<XioCompletion*>(xs));
- break;
- default:
- ldout(msgr->cct,0) << __func__ << ": Unknown Msg type " << xs->type << dendl;
- break;
- }
- }
-
- return 0;
-}
-
-int XioConnection::adjust_clru(uint32_t flags)
-{
- if (flags & CState::OP_FLAG_LOCKED)
- pthread_spin_unlock(&sp);
-
- XioMessenger* msgr = static_cast<XioMessenger*>(get_messenger());
- msgr->conns_sp.lock();
- pthread_spin_lock(&sp);
-
- if (cstate.flags & CState::FLAG_MAPPED) {
- XioConnection::ConnList::iterator citer =
- XioConnection::ConnList::s_iterator_to(*this);
- msgr->conns_list.erase(citer);
- msgr->conns_list.push_front(*this); // LRU
- }
-
- msgr->conns_sp.unlock();
-
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_unlock(&sp);
-
- return 0;
-}
-
-int XioConnection::on_msg_error(struct xio_session *session,
- enum xio_status error,
- struct xio_msg *msg,
- void *conn_user_context)
-{
- XioSend *xsend = static_cast<XioSend*>(msg->user_context);
- if (xsend)
- xsend->put();
-
- --send_ctr; /* atomic, because portal thread */
- return 0;
-} /* on_msg_error */
-
-void XioConnection::mark_down()
-{
- _mark_down(XioConnection::CState::OP_FLAG_NONE);
-}
-
-int XioConnection::_mark_down(uint32_t flags)
-{
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_lock(&sp);
-
- // per interface comment, we only stage a remote reset if the
- // current policy required it
- if (cstate.policy.resetcheck)
- cstate.flags |= CState::FLAG_RESET;
-
- disconnect();
-
- /* XXX this will almost certainly be called again from
- * on_disconnect_event() */
- discard_out_queues(flags|CState::OP_FLAG_LOCKED);
-
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_unlock(&sp);
-
- return 0;
-}
-
-void XioConnection::mark_disposable()
-{
- _mark_disposable(XioConnection::CState::OP_FLAG_NONE);
-}
-
-int XioConnection::_mark_disposable(uint32_t flags)
-{
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_lock(&sp);
-
- cstate.policy.lossy = true;
-
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_unlock(&sp);
-
- return 0;
-}
-
-int XioConnection::CState::state_up_ready(uint32_t flags)
-{
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_lock(&xcon->sp);
-
- xcon->flush_out_queues(flags|CState::OP_FLAG_LOCKED);
-
- session_state = session_states::UP;
- startup_state = session_startup_states::READY;
-
- if (! (flags & CState::OP_FLAG_LOCKED))
- pthread_spin_unlock(&xcon->sp);
-
- return (0);
-}
-
-int XioConnection::CState::state_discon()
-{
- session_state = session_states::DISCONNECTED;
- startup_state = session_startup_states::IDLE;
-
- return 0;
-}
-
-int XioConnection::CState::state_flow_controlled(uint32_t flags)
-{
- if (! (flags & OP_FLAG_LOCKED))
- pthread_spin_lock(&xcon->sp);
-
- session_state = session_states::FLOW_CONTROLLED;
-
- if (! (flags & OP_FLAG_LOCKED))
- pthread_spin_unlock(&xcon->sp);
-
- return (0);
-}
-
-int XioConnection::CState::state_fail(Message* m, uint32_t flags)
-{
- if (! (flags & OP_FLAG_LOCKED))
- pthread_spin_lock(&xcon->sp);
-
- // advance to state FAIL, drop queued, msgs, adjust LRU
- session_state = session_states::DISCONNECTED);
- startup_state = session_startup_states::FAIL);
-
- xcon->discard_out_queues(flags|OP_FLAG_LOCKED);
- xcon->adjust_clru(flags|OP_FLAG_LOCKED|OP_FLAG_LRU);
-
- xcon->disconnect();
-
- if (! (flags & OP_FLAG_LOCKED))
- pthread_spin_unlock(&xcon->sp);
-
- // notify ULP
- XioMessenger* msgr = static_cast<XioMessenger*>(xcon->get_messenger());
- msgr->ms_deliver_handle_reset(xcon);
- m->put();
-
- return 0;
-}
-
-
-int XioLoopbackConnection::send_message(Message *m)
-{
- XioMessenger *ms = static_cast<XioMessenger*>(get_messenger());
- m->set_connection(this);
- m->set_seq(next_seq());
- m->set_src(ms->get_myinst().name);
- ms->ds_dispatch(m);
- return 0;
-}
-
-void XioLoopbackConnection::send_keepalive()
-{
- utime_t t = ceph_clock_now();
- set_last_keepalive(t);
- set_last_keepalive_ack(t);
-}
Code Review / stor4nfv.git / blobdiff