7 files changed, 110 insertions, 111 deletions

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 1f486f001dfd..4c4c276e0eb8 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -977,7 +977,6 @@ struct drbd_conf {
         unsigned long flags;
 
         /* configured by drbdsetup */
-        struct net_conf *net_conf; /* protected by get_net_conf() and put_net_conf() */
         struct syncer_conf sync_conf;
         struct drbd_backing_dev *ldev __protected_by(local);
 
@@ -2134,10 +2133,10 @@ static inline void put_net_conf(struct drbd_conf *mdev)
 }
 
 /**
- * get_net_conf() - Increase ref count on mdev->net_conf; Returns 0 if nothing there
+ * get_net_conf() - Increase ref count on mdev->tconn->net_conf; Returns 0 if nothing there
  * @mdev:       DRBD device.
  *
- * You have to call put_net_conf() when finished working with mdev->net_conf.
+ * You have to call put_net_conf() when finished working with mdev->tconn->net_conf.
  */
 static inline int get_net_conf(struct drbd_conf *mdev)
 {
@@ -2253,7 +2252,7 @@ static inline int drbd_get_max_buffers(struct drbd_conf *mdev)
 {
         int mxb = 1000000; /* arbitrary limit on open requests */
         if (get_net_conf(mdev)) {
-                mxb = mdev->net_conf->max_buffers;
+                mxb = mdev->tconn->net_conf->max_buffers;
                 put_net_conf(mdev);
         }
         return mxb;
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index a6ac0c81406b..7e88a49d3448 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -693,7 +693,7 @@ is_valid_state(struct drbd_conf *mdev, union drbd_state ns)
         }
 
         if (get_net_conf(mdev)) {
-                if (!mdev->net_conf->two_primaries &&
+                if (!mdev->tconn->net_conf->two_primaries &&
                     ns.role == R_PRIMARY && ns.peer == R_PRIMARY)
                         rv = SS_TWO_PRIMARIES;
                 put_net_conf(mdev);
@@ -1952,7 +1952,7 @@ int drbd_send_protocol(struct drbd_conf *mdev)
         size = sizeof(struct p_protocol);
 
         if (mdev->agreed_pro_version >= 87)
-                size += strlen(mdev->net_conf->integrity_alg) + 1;
+                size += strlen(mdev->tconn->net_conf->integrity_alg) + 1;
 
         /* we must not recurse into our own queue,
          * as that is blocked during handshake */
@@ -1960,16 +1960,16 @@ int drbd_send_protocol(struct drbd_conf *mdev)
         if (p == NULL)
                 return 0;
 
-        p->protocol      = cpu_to_be32(mdev->net_conf->wire_protocol);
-        p->after_sb_0p   = cpu_to_be32(mdev->net_conf->after_sb_0p);
-        p->after_sb_1p   = cpu_to_be32(mdev->net_conf->after_sb_1p);
-        p->after_sb_2p   = cpu_to_be32(mdev->net_conf->after_sb_2p);
-        p->two_primaries = cpu_to_be32(mdev->net_conf->two_primaries);
+        p->protocol      = cpu_to_be32(mdev->tconn->net_conf->wire_protocol);
+        p->after_sb_0p   = cpu_to_be32(mdev->tconn->net_conf->after_sb_0p);
+        p->after_sb_1p   = cpu_to_be32(mdev->tconn->net_conf->after_sb_1p);
+        p->after_sb_2p   = cpu_to_be32(mdev->tconn->net_conf->after_sb_2p);
+        p->two_primaries = cpu_to_be32(mdev->tconn->net_conf->two_primaries);
 
         cf = 0;
-        if (mdev->net_conf->want_lose)
+        if (mdev->tconn->net_conf->want_lose)
                 cf |= CF_WANT_LOSE;
-        if (mdev->net_conf->dry_run) {
+        if (mdev->tconn->net_conf->dry_run) {
                 if (mdev->agreed_pro_version >= 92)
                         cf |= CF_DRY_RUN;
                 else {
@@ -1981,7 +1981,7 @@ int drbd_send_protocol(struct drbd_conf *mdev)
         p->conn_flags    = cpu_to_be32(cf);
 
         if (mdev->agreed_pro_version >= 87)
-                strcpy(p->integrity_alg, mdev->net_conf->integrity_alg);
+                strcpy(p->integrity_alg, mdev->tconn->net_conf->integrity_alg);
 
         rv = drbd_send_cmd(mdev, USE_DATA_SOCKET, P_PROTOCOL,
                            (struct p_header80 *)p, size);
@@ -2002,7 +2002,7 @@ int _drbd_send_uuids(struct drbd_conf *mdev, u64 uuid_flags)
 
         mdev->comm_bm_set = drbd_bm_total_weight(mdev);
         p.uuid[UI_SIZE] = cpu_to_be64(mdev->comm_bm_set);
-        uuid_flags |= mdev->net_conf->want_lose ? 1 : 0;
+        uuid_flags |= mdev->tconn->net_conf->want_lose ? 1 : 0;
         uuid_flags |= test_bit(CRASHED_PRIMARY, &mdev->flags) ? 2 : 0;
         uuid_flags |= mdev->new_state_tmp.disk == D_INCONSISTENT ? 4 : 0;
         p.uuid[UI_FLAGS] = cpu_to_be64(uuid_flags);
@@ -2717,7 +2717,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
                  * out ok after sending on this side, but does not fit on the
                  * receiving side, we sure have detected corruption elsewhere.
                  */
-                if (mdev->net_conf->wire_protocol == DRBD_PROT_A || dgs)
+                if (mdev->tconn->net_conf->wire_protocol == DRBD_PROT_A || dgs)
                         ok = _drbd_send_bio(mdev, req->master_bio);
                 else
                         ok = _drbd_send_zc_bio(mdev, req->master_bio);
@@ -2843,7 +2843,7 @@ int drbd_send(struct drbd_conf *mdev, struct socket *sock,
         msg.msg_flags      = msg_flags | MSG_NOSIGNAL;
 
         if (sock == mdev->data.socket) {
-                mdev->ko_count = mdev->net_conf->ko_count;
+                mdev->ko_count = mdev->tconn->net_conf->ko_count;
                 drbd_update_congested(mdev);
         }
         do {
@@ -3073,7 +3073,7 @@ void drbd_mdev_cleanup(struct drbd_conf *mdev)
                 mdev->rs_mark_left[i] = 0;
                 mdev->rs_mark_time[i] = 0;
         }
-        D_ASSERT(mdev->net_conf == NULL);
+        D_ASSERT(mdev->tconn->net_conf == NULL);
 
         drbd_set_my_capacity(mdev, 0);
         if (mdev->bitmap) {
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 51da84940a33..d816c61cd983 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -150,21 +150,21 @@ int drbd_khelper(struct drbd_conf *mdev, char *cmd)
         snprintf(mb, 12, "minor-%d", mdev_to_minor(mdev));
 
         if (get_net_conf(mdev)) {
-                switch (((struct sockaddr *)mdev->net_conf->peer_addr)->sa_family) {
+                switch (((struct sockaddr *)mdev->tconn->net_conf->peer_addr)->sa_family) {
                 case AF_INET6:
                         afs = "ipv6";
                         snprintf(ad, 60, "DRBD_PEER_ADDRESS=%pI6",
-                                 &((struct sockaddr_in6 *)mdev->net_conf->peer_addr)->sin6_addr);
+                                 &((struct sockaddr_in6 *)mdev->tconn->net_conf->peer_addr)->sin6_addr);
                         break;
                 case AF_INET:
                         afs = "ipv4";
                         snprintf(ad, 60, "DRBD_PEER_ADDRESS=%pI4",
-                                 &((struct sockaddr_in *)mdev->net_conf->peer_addr)->sin_addr);
+                                 &((struct sockaddr_in *)mdev->tconn->net_conf->peer_addr)->sin_addr);
                         break;
                 default:
                         afs = "ssocks";
                         snprintf(ad, 60, "DRBD_PEER_ADDRESS=%pI4",
-                                 &((struct sockaddr_in *)mdev->net_conf->peer_addr)->sin_addr);
+                                 &((struct sockaddr_in *)mdev->tconn->net_conf->peer_addr)->sin_addr);
                 }
                 snprintf(af, 20, "DRBD_PEER_AF=%s", afs);
                 envp[3]=af;
@@ -379,7 +379,7 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
                 if (rv == SS_TWO_PRIMARIES) {
                         /* Maybe the peer is detected as dead very soon...
                            retry at most once more in this case. */
-                        schedule_timeout_interruptible((mdev->net_conf->ping_timeo+1)*HZ/10);
+                        schedule_timeout_interruptible((mdev->tconn->net_conf->ping_timeo+1)*HZ/10);
                         if (try < max_tries)
                                 try = max_tries - 1;
                         continue;
@@ -410,7 +410,7 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
                 }
         } else {
                 if (get_net_conf(mdev)) {
-                        mdev->net_conf->want_lose = 0;
+                        mdev->tconn->net_conf->want_lose = 0;
                         put_net_conf(mdev);
                 }
                 set_disk_ro(mdev->vdisk, false);
@@ -972,7 +972,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
         }
 
         if (get_net_conf(mdev)) {
-                int prot = mdev->net_conf->wire_protocol;
+                int prot = mdev->tconn->net_conf->wire_protocol;
                 put_net_conf(mdev);
                 if (nbc->dc.fencing == FP_STONITH && prot == DRBD_PROT_A) {
                         retcode = ERR_STONITH_AND_PROT_A;
@@ -1439,13 +1439,13 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
                 if (!odev || odev == mdev)
                         continue;
                 if (get_net_conf(odev)) {
-                        taken_addr = (struct sockaddr *)&odev->net_conf->my_addr;
-                        if (new_conf->my_addr_len == odev->net_conf->my_addr_len &&
+                        taken_addr = (struct sockaddr *)&odev->tconn->net_conf->my_addr;
+                        if (new_conf->my_addr_len == odev->tconn->net_conf->my_addr_len &&
                             !memcmp(new_my_addr, taken_addr, new_conf->my_addr_len))
                                 retcode = ERR_LOCAL_ADDR;
 
-                        taken_addr = (struct sockaddr *)&odev->net_conf->peer_addr;
-                        if (new_conf->peer_addr_len == odev->net_conf->peer_addr_len &&
+                        taken_addr = (struct sockaddr *)&odev->tconn->net_conf->peer_addr;
+                        if (new_conf->peer_addr_len == odev->tconn->net_conf->peer_addr_len &&
                             !memcmp(new_peer_addr, taken_addr, new_conf->peer_addr_len))
                                 retcode = ERR_PEER_ADDR;
 
@@ -1522,12 +1522,12 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
 
         drbd_flush_workqueue(mdev);
         spin_lock_irq(&mdev->req_lock);
-        if (mdev->net_conf != NULL) {
+        if (mdev->tconn->net_conf != NULL) {
                 retcode = ERR_NET_CONFIGURED;
                 spin_unlock_irq(&mdev->req_lock);
                 goto fail;
         }
-        mdev->net_conf = new_conf;
+        mdev->tconn->net_conf = new_conf;
 
         mdev->send_cnt = 0;
         mdev->recv_cnt = 0;
@@ -2051,7 +2051,7 @@ static int drbd_nl_get_config(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
         }
 
         if (get_net_conf(mdev)) {
-                tl = net_conf_to_tags(mdev, mdev->net_conf, tl);
+                tl = net_conf_to_tags(mdev, mdev->tconn->net_conf, tl);
                 put_net_conf(mdev);
         }
         tl = syncer_conf_to_tags(mdev, &mdev->sync_conf, tl);
diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c
index 2959cdfb77f5..4e53cb3d99e7 100644
--- a/drivers/block/drbd/drbd_proc.c
+++ b/drivers/block/drbd/drbd_proc.c
@@ -254,8 +254,8 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
                            drbd_role_str(mdev->state.peer),
                            drbd_disk_str(mdev->state.disk),
                            drbd_disk_str(mdev->state.pdsk),
-                           (mdev->net_conf == NULL ? ' ' :
-                            (mdev->net_conf->wire_protocol - DRBD_PROT_A+'A')),
+                           (mdev->tconn->net_conf == NULL ? ' ' :
+                            (mdev->tconn->net_conf->wire_protocol - DRBD_PROT_A+'A')),
                            is_susp(mdev->state) ? 's' : 'r',
                            mdev->state.aftr_isp ? 'a' : '-',
                            mdev->state.peer_isp ? 'p' : '-',
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index a41b07820ddf..e5e7dd1c6dd8 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -237,7 +237,7 @@ static struct page *drbd_pp_alloc(struct drbd_conf *mdev, unsigned number, bool
 
         /* Yes, we may run up to @number over max_buffers. If we
          * follow it strictly, the admin will get it wrong anyways. */
-        if (atomic_read(&mdev->pp_in_use) < mdev->net_conf->max_buffers)
+        if (atomic_read(&mdev->pp_in_use) < mdev->tconn->net_conf->max_buffers)
                 page = drbd_pp_first_pages_or_try_alloc(mdev, number);
 
         while (page == NULL) {
@@ -245,7 +245,7 @@ static struct page *drbd_pp_alloc(struct drbd_conf *mdev, unsigned number, bool
 
                 drbd_kick_lo_and_reclaim_net(mdev);
 
-                if (atomic_read(&mdev->pp_in_use) < mdev->net_conf->max_buffers) {
+                if (atomic_read(&mdev->pp_in_use) < mdev->tconn->net_conf->max_buffers) {
                         page = drbd_pp_first_pages_or_try_alloc(mdev, number);
                         if (page)
                                 break;
@@ -582,7 +582,7 @@ static struct socket *drbd_try_connect(struct drbd_conf *mdev)
                 return NULL;
 
         what = "sock_create_kern";
-        err = sock_create_kern(((struct sockaddr *)mdev->net_conf->my_addr)->sa_family,
+        err = sock_create_kern(((struct sockaddr *)mdev->tconn->net_conf->my_addr)->sa_family,
                 SOCK_STREAM, IPPROTO_TCP, &sock);
         if (err < 0) {
                 sock = NULL;
@@ -590,9 +590,9 @@ static struct socket *drbd_try_connect(struct drbd_conf *mdev)
         }
 
         sock->sk->sk_rcvtimeo =
-        sock->sk->sk_sndtimeo =  mdev->net_conf->try_connect_int*HZ;
-        drbd_setbufsize(sock, mdev->net_conf->sndbuf_size,
-                        mdev->net_conf->rcvbuf_size);
+        sock->sk->sk_sndtimeo =  mdev->tconn->net_conf->try_connect_int*HZ;
+        drbd_setbufsize(sock, mdev->tconn->net_conf->sndbuf_size,
+                        mdev->tconn->net_conf->rcvbuf_size);
 
        /* explicitly bind to the configured IP as source IP
         *  for the outgoing connections.
@@ -601,9 +601,9 @@ static struct socket *drbd_try_connect(struct drbd_conf *mdev)
         * Make sure to use 0 as port number, so linux selects
         *  a free one dynamically.
         */
-        memcpy(&src_in6, mdev->net_conf->my_addr,
-               min_t(int, mdev->net_conf->my_addr_len, sizeof(src_in6)));
-        if (((struct sockaddr *)mdev->net_conf->my_addr)->sa_family == AF_INET6)
+        memcpy(&src_in6, mdev->tconn->net_conf->my_addr,
+               min_t(int, mdev->tconn->net_conf->my_addr_len, sizeof(src_in6)));
+        if (((struct sockaddr *)mdev->tconn->net_conf->my_addr)->sa_family == AF_INET6)
                 src_in6.sin6_port = 0;
         else
                 ((struct sockaddr_in *)&src_in6)->sin_port = 0; /* AF_INET & AF_SCI */
@@ -611,7 +611,7 @@ static struct socket *drbd_try_connect(struct drbd_conf *mdev)
         what = "bind before connect";
         err = sock->ops->bind(sock,
                               (struct sockaddr *) &src_in6,
-                              mdev->net_conf->my_addr_len);
+                              mdev->tconn->net_conf->my_addr_len);
         if (err < 0)
                 goto out;
 
@@ -620,8 +620,8 @@ static struct socket *drbd_try_connect(struct drbd_conf *mdev)
         disconnect_on_error = 0;
         what = "connect";
         err = sock->ops->connect(sock,
-                                 (struct sockaddr *)mdev->net_conf->peer_addr,
-                                 mdev->net_conf->peer_addr_len, 0);
+                                 (struct sockaddr *)mdev->tconn->net_conf->peer_addr,
+                                 mdev->tconn->net_conf->peer_addr_len, 0);
 
 out:
         if (err < 0) {
@@ -658,26 +658,26 @@ static struct socket *drbd_wait_for_connect(struct drbd_conf *mdev)
                 return NULL;
 
         what = "sock_create_kern";
-        err = sock_create_kern(((struct sockaddr *)mdev->net_conf->my_addr)->sa_family,
+        err = sock_create_kern(((struct sockaddr *)mdev->tconn->net_conf->my_addr)->sa_family,
                 SOCK_STREAM, IPPROTO_TCP, &s_listen);
         if (err) {
                 s_listen = NULL;
                 goto out;
         }
 
-        timeo = mdev->net_conf->try_connect_int * HZ;
+        timeo = mdev->tconn->net_conf->try_connect_int * HZ;
         timeo += (random32() & 1) ? timeo / 7 : -timeo / 7; /* 28.5% random jitter */
 
         s_listen->sk->sk_reuse    = 1; /* SO_REUSEADDR */
         s_listen->sk->sk_rcvtimeo = timeo;
         s_listen->sk->sk_sndtimeo = timeo;
-        drbd_setbufsize(s_listen, mdev->net_conf->sndbuf_size,
-                        mdev->net_conf->rcvbuf_size);
+        drbd_setbufsize(s_listen, mdev->tconn->net_conf->sndbuf_size,
+                        mdev->tconn->net_conf->rcvbuf_size);
 
         what = "bind before listen";
         err = s_listen->ops->bind(s_listen,
-                              (struct sockaddr *) mdev->net_conf->my_addr,
-                              mdev->net_conf->my_addr_len);
+                              (struct sockaddr *) mdev->tconn->net_conf->my_addr,
+                              mdev->tconn->net_conf->my_addr_len);
         if (err < 0)
                 goto out;
 
@@ -791,7 +791,7 @@ static int drbd_connect(struct drbd_conf *mdev)
                 }
 
                 if (sock && msock) {
-                        schedule_timeout_interruptible(mdev->net_conf->ping_timeo*HZ/10);
+                        schedule_timeout_interruptible(mdev->tconn->net_conf->ping_timeo*HZ/10);
                         ok = drbd_socket_okay(mdev, &sock);
                         ok = drbd_socket_okay(mdev, &msock) && ok;
                         if (ok)
@@ -855,15 +855,15 @@ retry:
         msock->sk->sk_priority = TC_PRIO_INTERACTIVE;
 
         /* NOT YET ...
-         * sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10;
+         * sock->sk->sk_sndtimeo = mdev->tconn->net_conf->timeout*HZ/10;
          * sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT;
          * first set it to the P_HAND_SHAKE timeout,
          * which we set to 4x the configured ping_timeout. */
         sock->sk->sk_sndtimeo =
-        sock->sk->sk_rcvtimeo = mdev->net_conf->ping_timeo*4*HZ/10;
+        sock->sk->sk_rcvtimeo = mdev->tconn->net_conf->ping_timeo*4*HZ/10;
 
-        msock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10;
-        msock->sk->sk_rcvtimeo = mdev->net_conf->ping_int*HZ;
+        msock->sk->sk_sndtimeo = mdev->tconn->net_conf->timeout*HZ/10;
+        msock->sk->sk_rcvtimeo = mdev->tconn->net_conf->ping_int*HZ;
 
         /* we don't want delays.
          * we use TCP_CORK where appropriate, though */
@@ -895,7 +895,7 @@ retry:
         if (drbd_request_state(mdev, NS(conn, C_WF_REPORT_PARAMS)) < SS_SUCCESS)
                 return 0;
 
-        sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10;
+        sock->sk->sk_sndtimeo = mdev->tconn->net_conf->timeout*HZ/10;
         sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT;
 
         atomic_set(&mdev->packet_seq, 0);
@@ -1555,7 +1555,7 @@ static int e_end_block(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
         sector_t sector = e->i.sector;
         int ok = 1, pcmd;
 
-        if (mdev->net_conf->wire_protocol == DRBD_PROT_C) {
+        if (mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C) {
                 if (likely((e->flags & EE_WAS_ERROR) == 0)) {
                         pcmd = (mdev->state.conn >= C_SYNC_SOURCE &&
                                 mdev->state.conn <= C_PAUSED_SYNC_T &&
@@ -1573,7 +1573,7 @@ static int e_end_block(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
         }
         /* we delete from the conflict detection hash _after_ we sent out the
          * P_WRITE_ACK / P_NEG_ACK, to get the sequence number right.  */
-        if (mdev->net_conf->two_primaries) {
+        if (mdev->tconn->net_conf->two_primaries) {
                 spin_lock_irq(&mdev->req_lock);
                 D_ASSERT(!drbd_interval_empty(&e->i));
                 drbd_remove_interval(&mdev->epoch_entries, &e->i);
@@ -1592,7 +1592,7 @@ static int e_send_discard_ack(struct drbd_conf *mdev, struct drbd_work *w, int u
         struct drbd_epoch_entry *e = (struct drbd_epoch_entry *)w;
         int ok = 1;
 
-        D_ASSERT(mdev->net_conf->wire_protocol == DRBD_PROT_C);
+        D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C);
         ok = drbd_send_ack(mdev, P_DISCARD_ACK, e);
 
         spin_lock_irq(&mdev->req_lock);
@@ -1717,7 +1717,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
         spin_unlock(&mdev->epoch_lock);
 
         /* I'm the receiver, I do hold a net_cnt reference. */
-        if (!mdev->net_conf->two_primaries) {
+        if (!mdev->tconn->net_conf->two_primaries) {
                 spin_lock_irq(&mdev->req_lock);
         } else {
                 /* don't get the req_lock yet,
@@ -1727,7 +1727,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
                 DEFINE_WAIT(wait);
                 int first;
 
-                D_ASSERT(mdev->net_conf->wire_protocol == DRBD_PROT_C);
+                D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C);
 
                 /* conflict detection and handling:
                  * 1. wait on the sequence number,
@@ -1845,7 +1845,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
         list_add(&e->w.list, &mdev->active_ee);
         spin_unlock_irq(&mdev->req_lock);
 
-        switch (mdev->net_conf->wire_protocol) {
+        switch (mdev->tconn->net_conf->wire_protocol) {
         case DRBD_PROT_C:
                 inc_unacked(mdev);
                 /* corresponding dec_unacked() in e_end_block()
@@ -2153,7 +2153,7 @@ static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local)
         ch_peer = mdev->p_uuid[UI_SIZE];
         ch_self = mdev->comm_bm_set;
 
-        switch (mdev->net_conf->after_sb_0p) {
+        switch (mdev->tconn->net_conf->after_sb_0p) {
         case ASB_CONSENSUS:
         case ASB_DISCARD_SECONDARY:
         case ASB_CALL_HELPER:
@@ -2192,7 +2192,7 @@ static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local)
                         if (ch_peer == 0) { rv =  1; break; }
                         if (ch_self == 0) { rv = -1; break; }
                 }
-                if (mdev->net_conf->after_sb_0p == ASB_DISCARD_ZERO_CHG)
+                if (mdev->tconn->net_conf->after_sb_0p == ASB_DISCARD_ZERO_CHG)
                         break;
         case ASB_DISCARD_LEAST_CHG:
                 if      (ch_self < ch_peer)
@@ -2218,7 +2218,7 @@ static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local)
 {
         int hg, rv = -100;
 
-        switch (mdev->net_conf->after_sb_1p) {
+        switch (mdev->tconn->net_conf->after_sb_1p) {
         case ASB_DISCARD_YOUNGER_PRI:
         case ASB_DISCARD_OLDER_PRI:
         case ASB_DISCARD_LEAST_CHG:
@@ -2267,7 +2267,7 @@ static int drbd_asb_recover_2p(struct drbd_conf *mdev) __must_hold(local)
 {
         int hg, rv = -100;
 
-        switch (mdev->net_conf->after_sb_2p) {
+        switch (mdev->tconn->net_conf->after_sb_2p) {
         case ASB_DISCARD_YOUNGER_PRI:
         case ASB_DISCARD_OLDER_PRI:
         case ASB_DISCARD_LEAST_CHG:
@@ -2558,7 +2558,7 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol
         if (abs(hg) == 100)
                 drbd_khelper(mdev, "initial-split-brain");
 
-        if (hg == 100 || (hg == -100 && mdev->net_conf->always_asbp)) {
+        if (hg == 100 || (hg == -100 && mdev->tconn->net_conf->always_asbp)) {
                 int pcount = (mdev->state.role == R_PRIMARY)
                            + (peer_role == R_PRIMARY);
                 int forced = (hg == -100);
@@ -2587,9 +2587,9 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol
         }
 
         if (hg == -100) {
-                if (mdev->net_conf->want_lose && !(mdev->p_uuid[UI_FLAGS]&1))
+                if (mdev->tconn->net_conf->want_lose && !(mdev->p_uuid[UI_FLAGS]&1))
                         hg = -1;
-                if (!mdev->net_conf->want_lose && (mdev->p_uuid[UI_FLAGS]&1))
+                if (!mdev->tconn->net_conf->want_lose && (mdev->p_uuid[UI_FLAGS]&1))
                         hg = 1;
 
                 if (abs(hg) < 100)
@@ -2615,7 +2615,7 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol
 
         if (hg < 0 && /* by intention we do not use mydisk here. */
             mdev->state.role == R_PRIMARY && mdev->state.disk >= D_CONSISTENT) {
-                switch (mdev->net_conf->rr_conflict) {
+                switch (mdev->tconn->net_conf->rr_conflict) {
                 case ASB_CALL_HELPER:
                         drbd_khelper(mdev, "pri-lost");
                         /* fall through */
@@ -2628,7 +2628,7 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol
                 }
         }
 
-        if (mdev->net_conf->dry_run || test_bit(CONN_DRY_RUN, &mdev->flags)) {
+        if (mdev->tconn->net_conf->dry_run || test_bit(CONN_DRY_RUN, &mdev->flags)) {
                 if (hg == 0)
                         dev_info(DEV, "dry-run connect: No resync, would become Connected immediately.\n");
                 else
@@ -2701,38 +2701,38 @@ static int receive_protocol(struct drbd_conf *mdev, enum drbd_packets cmd, unsig
         if (cf & CF_DRY_RUN)
                 set_bit(CONN_DRY_RUN, &mdev->flags);
 
-        if (p_proto != mdev->net_conf->wire_protocol) {
+        if (p_proto != mdev->tconn->net_conf->wire_protocol) {
                 dev_err(DEV, "incompatible communication protocols\n");
                 goto disconnect;
         }
 
-        if (cmp_after_sb(p_after_sb_0p, mdev->net_conf->after_sb_0p)) {
+        if (cmp_after_sb(p_after_sb_0p, mdev->tconn->net_conf->after_sb_0p)) {
                 dev_err(DEV, "incompatible after-sb-0pri settings\n");
                 goto disconnect;
         }
 
-        if (cmp_after_sb(p_after_sb_1p, mdev->net_conf->after_sb_1p)) {
+        if (cmp_after_sb(p_after_sb_1p, mdev->tconn->net_conf->after_sb_1p)) {
                 dev_err(DEV, "incompatible after-sb-1pri settings\n");
                 goto disconnect;
         }
 
-        if (cmp_after_sb(p_after_sb_2p, mdev->net_conf->after_sb_2p)) {
+        if (cmp_after_sb(p_after_sb_2p, mdev->tconn->net_conf->after_sb_2p)) {
                 dev_err(DEV, "incompatible after-sb-2pri settings\n");
                 goto disconnect;
         }
 
-        if (p_want_lose && mdev->net_conf->want_lose) {
+        if (p_want_lose && mdev->tconn->net_conf->want_lose) {
                 dev_err(DEV, "both sides have the 'want_lose' flag set\n");
                 goto disconnect;
         }
 
-        if (p_two_primaries != mdev->net_conf->two_primaries) {
+        if (p_two_primaries != mdev->tconn->net_conf->two_primaries) {
                 dev_err(DEV, "incompatible setting of the two-primaries options\n");
                 goto disconnect;
         }
 
         if (mdev->agreed_pro_version >= 87) {
-                unsigned char *my_alg = mdev->net_conf->integrity_alg;
+                unsigned char *my_alg = mdev->tconn->net_conf->integrity_alg;
 
                 if (drbd_recv(mdev, p_integrity_alg, data_size) != data_size)
                         return false;
@@ -3312,7 +3312,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
                 }
         }
 
-        mdev->net_conf->want_lose = 0;
+        mdev->tconn->net_conf->want_lose = 0;
 
         drbd_md_sync(mdev); /* update connected indicator, la_size, ... */
 
@@ -3844,8 +3844,8 @@ static void drbd_disconnect(struct drbd_conf *mdev)
                 crypto_free_hash(mdev->cram_hmac_tfm);
                 mdev->cram_hmac_tfm = NULL;
 
-                kfree(mdev->net_conf);
-                mdev->net_conf = NULL;
+                kfree(mdev->tconn->net_conf);
+                mdev->tconn->net_conf = NULL;
                 drbd_request_state(mdev, NS(conn, C_STANDALONE));
         }
 
@@ -4005,7 +4005,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         char *response = NULL;
         char *right_response = NULL;
         char *peers_ch = NULL;
-        unsigned int key_len = strlen(mdev->net_conf->shared_secret);
+        unsigned int key_len = strlen(mdev->tconn->net_conf->shared_secret);
         unsigned int resp_size;
         struct hash_desc desc;
         enum drbd_packets cmd;
@@ -4016,7 +4016,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         desc.flags = 0;
 
         rv = crypto_hash_setkey(mdev->cram_hmac_tfm,
-                                (u8 *)mdev->net_conf->shared_secret, key_len);
+                                (u8 *)mdev->tconn->net_conf->shared_secret, key_len);
         if (rv) {
                 dev_err(DEV, "crypto_hash_setkey() failed with %d\n", rv);
                 rv = -1;
@@ -4130,7 +4130,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
 
         if (rv)
                 dev_info(DEV, "Peer authenticated using %d bytes of '%s' HMAC\n",
-                     resp_size, mdev->net_conf->cram_hmac_alg);
+                     resp_size, mdev->tconn->net_conf->cram_hmac_alg);
         else
                 rv = -1;
 
@@ -4207,7 +4207,7 @@ static int got_Ping(struct drbd_conf *mdev, struct p_header80 *h)
 static int got_PingAck(struct drbd_conf *mdev, struct p_header80 *h)
 {
         /* restore idle timeout */
-        mdev->meta.socket->sk->sk_rcvtimeo = mdev->net_conf->ping_int*HZ;
+        mdev->meta.socket->sk->sk_rcvtimeo = mdev->tconn->net_conf->ping_int*HZ;
         if (!test_and_set_bit(GOT_PING_ACK, &mdev->flags))
                 wake_up(&mdev->misc_wait);
 
@@ -4275,19 +4275,19 @@ static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h)
         }
         switch (be16_to_cpu(h->command)) {
         case P_RS_WRITE_ACK:
-                D_ASSERT(mdev->net_conf->wire_protocol == DRBD_PROT_C);
+                D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C);
                 what = WRITE_ACKED_BY_PEER_AND_SIS;
                 break;
         case P_WRITE_ACK:
-                D_ASSERT(mdev->net_conf->wire_protocol == DRBD_PROT_C);
+                D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C);
                 what = WRITE_ACKED_BY_PEER;
                 break;
         case P_RECV_ACK:
-                D_ASSERT(mdev->net_conf->wire_protocol == DRBD_PROT_B);
+                D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_B);
                 what = RECV_ACKED_BY_PEER;
                 break;
         case P_DISCARD_ACK:
-                D_ASSERT(mdev->net_conf->wire_protocol == DRBD_PROT_C);
+                D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C);
                 what = CONFLICT_DISCARDED_BY_PEER;
                 break;
         default:
@@ -4305,8 +4305,8 @@ static int got_NegAck(struct drbd_conf *mdev, struct p_header80 *h)
         struct p_block_ack *p = (struct p_block_ack *)h;
         sector_t sector = be64_to_cpu(p->sector);
         int size = be32_to_cpu(p->blksize);
-        bool missing_ok = mdev->net_conf->wire_protocol == DRBD_PROT_A ||
-                          mdev->net_conf->wire_protocol == DRBD_PROT_B;
+        bool missing_ok = mdev->tconn->net_conf->wire_protocol == DRBD_PROT_A ||
+                          mdev->tconn->net_conf->wire_protocol == DRBD_PROT_B;
         bool found;
 
         update_peer_seq(mdev, be32_to_cpu(p->seq_num));
@@ -4502,13 +4502,13 @@ int drbd_asender(struct drbd_thread *thi)
                                 goto reconnect;
                         }
                         mdev->meta.socket->sk->sk_rcvtimeo =
-                                mdev->net_conf->ping_timeo*HZ/10;
+                                mdev->tconn->net_conf->ping_timeo*HZ/10;
                         ping_timeout_active = 1;
                 }
 
                 /* conditionally cork;
                  * it may hurt latency if we cork without much to send */
-                if (!mdev->net_conf->no_cork &&
+                if (!mdev->tconn->net_conf->no_cork &&
                         3 < atomic_read(&mdev->unacked_cnt))
                         drbd_tcp_cork(mdev->meta.socket);
                 while (1) {
@@ -4528,7 +4528,7 @@ int drbd_asender(struct drbd_thread *thi)
                                 break;
                 }
                 /* but unconditionally uncork unless disabled */
-                if (!mdev->net_conf->no_cork)
+                if (!mdev->tconn->net_conf->no_cork)
                         drbd_tcp_uncork(mdev->meta.socket);
 
                 /* short circuit, recv_msg would return EINTR anyways. */
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index b3b1d4edbb03..2b2662d4ab3c 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -528,7 +528,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
                 drbd_queue_work(&mdev->data.work, &req->w);
 
                 /* close the epoch, in case it outgrew the limit */
-                if (mdev->newest_tle->n_writes >= mdev->net_conf->max_epoch_size)
+                if (mdev->newest_tle->n_writes >= mdev->tconn->net_conf->max_epoch_size)
                         queue_barrier(mdev);
 
                 break;
@@ -558,7 +558,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
                         atomic_add(req->i.size >> 9, &mdev->ap_in_flight);
 
                 if (bio_data_dir(req->master_bio) == WRITE &&
-                    mdev->net_conf->wire_protocol == DRBD_PROT_A) {
+                    mdev->tconn->net_conf->wire_protocol == DRBD_PROT_A) {
                         /* this is what is dangerous about protocol A:
                          * pretend it was successfully written on the peer. */
                         if (req->rq_state & RQ_NET_PENDING) {
@@ -697,8 +697,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
                 }
                 if ((req->rq_state & RQ_NET_MASK) != 0) {
                         req->rq_state |= RQ_NET_DONE;
-                        if (mdev->net_conf->wire_protocol == DRBD_PROT_A)
-                                atomic_sub(req->i.size >> 9, &mdev->ap_in_flight);
+                        if (mdev->tconn->net_conf->wire_protocol == DRBD_PROT_A)
+                                atomic_sub(req->i.size>>9, &mdev->ap_in_flight);
                 }
                 _req_may_be_done(req, m); /* Allowed while state.susp */
                 break;
@@ -951,16 +951,16 @@ allocate_barrier:
                 _req_mod(req, QUEUE_FOR_SEND_OOS);
 
         if (remote &&
-            mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) {
+            mdev->tconn->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) {
                 int congested = 0;
 
-                if (mdev->net_conf->cong_fill &&
-                    atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) {
+                if (mdev->tconn->net_conf->cong_fill &&
+                    atomic_read(&mdev->ap_in_flight) >= mdev->tconn->net_conf->cong_fill) {
                         dev_info(DEV, "Congestion-fill threshold reached\n");
                         congested = 1;
                 }
 
-                if (mdev->act_log->used >= mdev->net_conf->cong_extents) {
+                if (mdev->act_log->used >= mdev->tconn->net_conf->cong_extents) {
                         dev_info(DEV, "Congestion-extents threshold reached\n");
                         congested = 1;
                 }
@@ -968,9 +968,9 @@ allocate_barrier:
                 if (congested) {
                         queue_barrier(mdev); /* last barrier, after mirrored writes */
 
-                        if (mdev->net_conf->on_congestion == OC_PULL_AHEAD)
+                        if (mdev->tconn->net_conf->on_congestion == OC_PULL_AHEAD)
                                 _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL);
-                        else  /*mdev->net_conf->on_congestion == OC_DISCONNECT */
+                        else  /*mdev->tconn->net_conf->on_congestion == OC_DISCONNECT */
                                 _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL);
                 }
         }
@@ -1182,7 +1182,7 @@ void request_timer_fn(unsigned long data)
         unsigned long et = 0; /* effective timeout = ko_count * timeout */
 
         if (get_net_conf(mdev)) {
-                et = mdev->net_conf->timeout*HZ/10 * mdev->net_conf->ko_count;
+                et = mdev->tconn->net_conf->timeout*HZ/10 * mdev->tconn->net_conf->ko_count;
                 put_net_conf(mdev);
         }
         if (!et || mdev->state.conn < C_WF_REPORT_PARAMS)
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 2e2c0659a3eb..d8c61816d103 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1590,8 +1590,8 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
                          * the race considerably, but does not solve it. */
                         if (side == C_SYNC_SOURCE)
                                 schedule_timeout_interruptible(
-                                        mdev->net_conf->ping_int * HZ +
-                                        mdev->net_conf->ping_timeo*HZ/9);
+                                        mdev->tconn->net_conf->ping_int * HZ +
+                                        mdev->tconn->net_conf->ping_timeo*HZ/9);
                         drbd_resync_finished(mdev);
                 }
 
@@ -1623,14 +1623,14 @@ int drbd_worker(struct drbd_thread *thi)
 
                 if (down_trylock(&mdev->data.work.s)) {
                         mutex_lock(&mdev->data.mutex);
-                        if (mdev->data.socket && !mdev->net_conf->no_cork)
+                        if (mdev->data.socket && !mdev->tconn->net_conf->no_cork)
                                 drbd_tcp_uncork(mdev->data.socket);
                         mutex_unlock(&mdev->data.mutex);
 
                         intr = down_interruptible(&mdev->data.work.s);
 
                         mutex_lock(&mdev->data.mutex);
-                        if (mdev->data.socket  && !mdev->net_conf->no_cork)
+                        if (mdev->data.socket  && !mdev->tconn->net_conf->no_cork)
                                 drbd_tcp_cork(mdev->data.socket);
                         mutex_unlock(&mdev->data.mutex);
                 }