Lines Matching refs:session
246 void j1939_session_get(struct j1939_session *session) in j1939_session_get() argument
248 kref_get(&session->kref); in j1939_session_get()
252 static void __j1939_session_drop(struct j1939_session *session) in __j1939_session_drop() argument
254 if (!session->transmission) in __j1939_session_drop()
257 j1939_sock_pending_del(session->sk); in __j1939_session_drop()
258 sock_put(session->sk); in __j1939_session_drop()
261 static void j1939_session_destroy(struct j1939_session *session) in j1939_session_destroy() argument
265 if (session->err) in j1939_session_destroy()
266 j1939_sk_errqueue(session, J1939_ERRQUEUE_ABORT); in j1939_session_destroy()
268 j1939_sk_errqueue(session, J1939_ERRQUEUE_ACK); in j1939_session_destroy()
270 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_destroy()
272 WARN_ON_ONCE(!list_empty(&session->sk_session_queue_entry)); in j1939_session_destroy()
273 WARN_ON_ONCE(!list_empty(&session->active_session_list_entry)); in j1939_session_destroy()
275 while ((skb = skb_dequeue(&session->skb_queue)) != NULL) { in j1939_session_destroy()
280 __j1939_session_drop(session); in j1939_session_destroy()
281 j1939_priv_put(session->priv); in j1939_session_destroy()
282 kfree(session); in j1939_session_destroy()
287 struct j1939_session *session = container_of(kref, struct j1939_session, in __j1939_session_release() local
290 j1939_session_destroy(session); in __j1939_session_release()
293 void j1939_session_put(struct j1939_session *session) in j1939_session_put() argument
295 kref_put(&session->kref, __j1939_session_release); in j1939_session_put()
298 static void j1939_session_txtimer_cancel(struct j1939_session *session) in j1939_session_txtimer_cancel() argument
300 if (hrtimer_cancel(&session->txtimer)) in j1939_session_txtimer_cancel()
301 j1939_session_put(session); in j1939_session_txtimer_cancel()
304 static void j1939_session_rxtimer_cancel(struct j1939_session *session) in j1939_session_rxtimer_cancel() argument
306 if (hrtimer_cancel(&session->rxtimer)) in j1939_session_rxtimer_cancel()
307 j1939_session_put(session); in j1939_session_rxtimer_cancel()
310 void j1939_session_timers_cancel(struct j1939_session *session) in j1939_session_timers_cancel() argument
312 j1939_session_txtimer_cancel(session); in j1939_session_timers_cancel()
313 j1939_session_rxtimer_cancel(session); in j1939_session_timers_cancel()
321 static void j1939_session_skb_drop_old(struct j1939_session *session) in j1939_session_skb_drop_old() argument
328 if (skb_queue_len(&session->skb_queue) < 2) in j1939_session_skb_drop_old()
331 offset_start = session->pkt.tx_acked * 7; in j1939_session_skb_drop_old()
333 spin_lock_irqsave(&session->skb_queue.lock, flags); in j1939_session_skb_drop_old()
334 do_skb = skb_peek(&session->skb_queue); in j1939_session_skb_drop_old()
338 __skb_unlink(do_skb, &session->skb_queue); in j1939_session_skb_drop_old()
344 spin_unlock_irqrestore(&session->skb_queue.lock, flags); in j1939_session_skb_drop_old()
347 void j1939_session_skb_queue(struct j1939_session *session, in j1939_session_skb_queue() argument
351 struct j1939_priv *priv = session->priv; in j1939_session_skb_queue()
362 skb_queue_tail(&session->skb_queue, skb); in j1939_session_skb_queue()
366 sk_buff *j1939_session_skb_get_by_offset(struct j1939_session *session, in j1939_session_skb_get_by_offset() argument
369 struct j1939_priv *priv = session->priv; in j1939_session_skb_get_by_offset()
375 spin_lock_irqsave(&session->skb_queue.lock, flags); in j1939_session_skb_get_by_offset()
376 skb_queue_walk(&session->skb_queue, do_skb) { in j1939_session_skb_get_by_offset()
388 spin_unlock_irqrestore(&session->skb_queue.lock, flags); in j1939_session_skb_get_by_offset()
392 __func__, session, offset_start, in j1939_session_skb_get_by_offset()
393 skb_queue_len(&session->skb_queue)); in j1939_session_skb_get_by_offset()
398 static struct sk_buff *j1939_session_skb_get(struct j1939_session *session) in j1939_session_skb_get() argument
402 offset_start = session->pkt.dpo * 7; in j1939_session_skb_get()
403 return j1939_session_skb_get_by_offset(session, offset_start); in j1939_session_skb_get()
512 struct j1939_session *session; in j1939_session_get_by_addr_locked() local
516 list_for_each_entry(session, root, active_session_list_entry) { in j1939_session_get_by_addr_locked()
517 j1939_session_get(session); in j1939_session_get_by_addr_locked()
518 if (j1939_session_match(&session->skcb.addr, addr, reverse) && in j1939_session_get_by_addr_locked()
519 session->transmission == transmitter) in j1939_session_get_by_addr_locked()
520 return session; in j1939_session_get_by_addr_locked()
521 j1939_session_put(session); in j1939_session_get_by_addr_locked()
532 struct j1939_session *session; in j1939_session_get_simple() local
536 list_for_each_entry(session, &priv->active_session_list, in j1939_session_get_simple()
538 j1939_session_get(session); in j1939_session_get_simple()
539 if (session->skcb.addr.type == J1939_SIMPLE && in j1939_session_get_simple()
540 session->tskey == skcb->tskey && session->sk == skb->sk) in j1939_session_get_simple()
541 return session; in j1939_session_get_simple()
542 j1939_session_put(session); in j1939_session_get_simple()
553 struct j1939_session *session; in j1939_session_get_by_addr() local
556 session = j1939_session_get_by_addr_locked(priv, in j1939_session_get_by_addr()
561 return session; in j1939_session_get_by_addr()
622 static int j1939_tp_tx_dat(struct j1939_session *session, in j1939_tp_tx_dat() argument
625 struct j1939_priv *priv = session->priv; in j1939_tp_tx_dat()
628 skb = j1939_tp_tx_dat_new(priv, &session->skcb, in j1939_tp_tx_dat()
663 static inline int j1939_tp_tx_ctl(struct j1939_session *session, in j1939_tp_tx_ctl() argument
666 struct j1939_priv *priv = session->priv; in j1939_tp_tx_ctl()
668 return j1939_xtp_do_tx_ctl(priv, &session->skcb, in j1939_tp_tx_ctl()
670 session->skcb.addr.pgn, dat); in j1939_tp_tx_ctl()
690 void j1939_tp_schedule_txtimer(struct j1939_session *session, int msec) in j1939_tp_schedule_txtimer() argument
692 j1939_session_get(session); in j1939_tp_schedule_txtimer()
693 hrtimer_start(&session->txtimer, ms_to_ktime(msec), in j1939_tp_schedule_txtimer()
697 static inline void j1939_tp_set_rxtimeout(struct j1939_session *session, in j1939_tp_set_rxtimeout() argument
700 j1939_session_rxtimer_cancel(session); in j1939_tp_set_rxtimeout()
701 j1939_session_get(session); in j1939_tp_set_rxtimeout()
702 hrtimer_start(&session->rxtimer, ms_to_ktime(msec), in j1939_tp_set_rxtimeout()
706 static int j1939_session_tx_rts(struct j1939_session *session) in j1939_session_tx_rts() argument
713 dat[1] = (session->total_message_size >> 0); in j1939_session_tx_rts()
714 dat[2] = (session->total_message_size >> 8); in j1939_session_tx_rts()
715 dat[3] = session->pkt.total; in j1939_session_tx_rts()
717 if (session->skcb.addr.type == J1939_ETP) { in j1939_session_tx_rts()
719 dat[1] = (session->total_message_size >> 0); in j1939_session_tx_rts()
720 dat[2] = (session->total_message_size >> 8); in j1939_session_tx_rts()
721 dat[3] = (session->total_message_size >> 16); in j1939_session_tx_rts()
722 dat[4] = (session->total_message_size >> 24); in j1939_session_tx_rts()
723 } else if (j1939_cb_is_broadcast(&session->skcb)) { in j1939_session_tx_rts()
726 session->pkt.tx = 0; in j1939_session_tx_rts()
732 if (dat[0] == session->last_txcmd) in j1939_session_tx_rts()
736 ret = j1939_tp_tx_ctl(session, false, dat); in j1939_session_tx_rts()
740 session->last_txcmd = dat[0]; in j1939_session_tx_rts()
742 j1939_tp_schedule_txtimer(session, 50); in j1939_session_tx_rts()
743 j1939_tp_set_rxtimeout(session, 250); in j1939_session_tx_rts()
745 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_rts()
748 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_rts()
753 static int j1939_session_tx_dpo(struct j1939_session *session) in j1939_session_tx_dpo() argument
762 session->pkt.dpo = session->pkt.tx_acked; in j1939_session_tx_dpo()
763 pkt = session->pkt.dpo; in j1939_session_tx_dpo()
764 dat[1] = session->pkt.last - session->pkt.tx_acked; in j1939_session_tx_dpo()
769 ret = j1939_tp_tx_ctl(session, false, dat); in j1939_session_tx_dpo()
773 session->last_txcmd = dat[0]; in j1939_session_tx_dpo()
774 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_dpo()
775 session->pkt.tx = session->pkt.tx_acked; in j1939_session_tx_dpo()
777 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_dpo()
782 static int j1939_session_tx_dat(struct j1939_session *session) in j1939_session_tx_dat() argument
784 struct j1939_priv *priv = session->priv; in j1939_session_tx_dat()
793 se_skb = j1939_session_skb_get_by_offset(session, session->pkt.tx * 7); in j1939_session_tx_dat()
801 if (session->skcb.addr.type != J1939_ETP && in j1939_session_tx_dat()
802 j1939_cb_is_broadcast(&session->skcb)) in j1939_session_tx_dat()
803 pkt_end = session->pkt.total; in j1939_session_tx_dat()
805 pkt_end = session->pkt.last; in j1939_session_tx_dat()
807 while (session->pkt.tx < pkt_end) { in j1939_session_tx_dat()
808 dat[0] = session->pkt.tx - session->pkt.dpo + 1; in j1939_session_tx_dat()
809 offset = (session->pkt.tx * 7) - skcb->offset; in j1939_session_tx_dat()
817 __func__, session, skcb->offset, se_skb->len , session->pkt.tx); in j1939_session_tx_dat()
828 ret = j1939_tp_tx_dat(session, dat, len + 1); in j1939_session_tx_dat()
834 __func__, session, ret); in j1939_session_tx_dat()
838 session->last_txcmd = 0xff; in j1939_session_tx_dat()
840 session->pkt.tx++; in j1939_session_tx_dat()
841 pdelay = j1939_cb_is_broadcast(&session->skcb) ? 50 : in j1939_session_tx_dat()
844 if (session->pkt.tx < session->pkt.total && pdelay) { in j1939_session_tx_dat()
845 j1939_tp_schedule_txtimer(session, pdelay); in j1939_session_tx_dat()
851 j1939_tp_set_rxtimeout(session, 250); in j1939_session_tx_dat()
862 static int j1939_xtp_txnext_transmiter(struct j1939_session *session) in j1939_xtp_txnext_transmiter() argument
864 struct j1939_priv *priv = session->priv; in j1939_xtp_txnext_transmiter()
867 if (!j1939_tp_im_transmitter(&session->skcb)) { in j1939_xtp_txnext_transmiter()
869 __func__, session); in j1939_xtp_txnext_transmiter()
873 switch (session->last_cmd) { in j1939_xtp_txnext_transmiter()
875 ret = j1939_session_tx_rts(session); in j1939_xtp_txnext_transmiter()
879 if (session->last_txcmd != J1939_ETP_CMD_DPO) { in j1939_xtp_txnext_transmiter()
880 ret = j1939_session_tx_dpo(session); in j1939_xtp_txnext_transmiter()
890 ret = j1939_session_tx_dat(session); in j1939_xtp_txnext_transmiter()
895 __func__, session, session->last_cmd); in j1939_xtp_txnext_transmiter()
901 static int j1939_session_tx_cts(struct j1939_session *session) in j1939_session_tx_cts() argument
903 struct j1939_priv *priv = session->priv; in j1939_session_tx_cts()
908 if (!j1939_sk_recv_match(priv, &session->skcb)) in j1939_session_tx_cts()
911 len = session->pkt.total - session->pkt.rx; in j1939_session_tx_cts()
912 len = min3(len, session->pkt.block, j1939_tp_block ?: 255); in j1939_session_tx_cts()
915 if (session->skcb.addr.type == J1939_ETP) { in j1939_session_tx_cts()
916 pkt = session->pkt.rx + 1; in j1939_session_tx_cts()
925 dat[2] = session->pkt.rx + 1; in j1939_session_tx_cts()
928 if (dat[0] == session->last_txcmd) in j1939_session_tx_cts()
932 ret = j1939_tp_tx_ctl(session, true, dat); in j1939_session_tx_cts()
938 session->last_txcmd = dat[0]; in j1939_session_tx_cts()
939 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_cts()
941 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_session_tx_cts()
946 static int j1939_session_tx_eoma(struct j1939_session *session) in j1939_session_tx_eoma() argument
948 struct j1939_priv *priv = session->priv; in j1939_session_tx_eoma()
952 if (!j1939_sk_recv_match(priv, &session->skcb)) in j1939_session_tx_eoma()
957 if (session->skcb.addr.type == J1939_ETP) { in j1939_session_tx_eoma()
959 dat[1] = session->total_message_size >> 0; in j1939_session_tx_eoma()
960 dat[2] = session->total_message_size >> 8; in j1939_session_tx_eoma()
961 dat[3] = session->total_message_size >> 16; in j1939_session_tx_eoma()
962 dat[4] = session->total_message_size >> 24; in j1939_session_tx_eoma()
965 dat[1] = session->total_message_size; in j1939_session_tx_eoma()
966 dat[2] = session->total_message_size >> 8; in j1939_session_tx_eoma()
967 dat[3] = session->pkt.total; in j1939_session_tx_eoma()
970 if (dat[0] == session->last_txcmd) in j1939_session_tx_eoma()
974 ret = j1939_tp_tx_ctl(session, true, dat); in j1939_session_tx_eoma()
978 session->last_txcmd = dat[0]; in j1939_session_tx_eoma()
981 j1939_tp_set_rxtimeout(session, 1250); in j1939_session_tx_eoma()
983 netdev_dbg(session->priv->ndev, "%p: 0x%p\n", __func__, session); in j1939_session_tx_eoma()
988 static int j1939_xtp_txnext_receiver(struct j1939_session *session) in j1939_xtp_txnext_receiver() argument
990 struct j1939_priv *priv = session->priv; in j1939_xtp_txnext_receiver()
993 if (!j1939_tp_im_receiver(&session->skcb)) { in j1939_xtp_txnext_receiver()
995 __func__, session); in j1939_xtp_txnext_receiver()
999 switch (session->last_cmd) { in j1939_xtp_txnext_receiver()
1002 ret = j1939_session_tx_cts(session); in j1939_xtp_txnext_receiver()
1009 if ((session->skcb.addr.type == J1939_TP && in j1939_xtp_txnext_receiver()
1010 j1939_cb_is_broadcast(&session->skcb))) in j1939_xtp_txnext_receiver()
1013 if (session->pkt.rx >= session->pkt.total) { in j1939_xtp_txnext_receiver()
1014 ret = j1939_session_tx_eoma(session); in j1939_xtp_txnext_receiver()
1015 } else if (session->pkt.rx >= session->pkt.last) { in j1939_xtp_txnext_receiver()
1016 session->last_txcmd = 0; in j1939_xtp_txnext_receiver()
1017 ret = j1939_session_tx_cts(session); in j1939_xtp_txnext_receiver()
1022 __func__, session, session->last_cmd); in j1939_xtp_txnext_receiver()
1028 static int j1939_simple_txnext(struct j1939_session *session) in j1939_simple_txnext() argument
1030 struct j1939_priv *priv = session->priv; in j1939_simple_txnext()
1031 struct sk_buff *se_skb = j1939_session_skb_get(session); in j1939_simple_txnext()
1046 j1939_tp_set_rxtimeout(session, J1939_SIMPLE_ECHO_TIMEOUT_MS); in j1939_simple_txnext()
1052 j1939_sk_errqueue(session, J1939_ERRQUEUE_SCHED); in j1939_simple_txnext()
1053 j1939_sk_queue_activate_next(session); in j1939_simple_txnext()
1064 static bool j1939_session_deactivate_locked(struct j1939_session *session) in j1939_session_deactivate_locked() argument
1068 lockdep_assert_held(&session->priv->active_session_list_lock); in j1939_session_deactivate_locked()
1070 if (session->state >= J1939_SESSION_ACTIVE && in j1939_session_deactivate_locked()
1071 session->state < J1939_SESSION_ACTIVE_MAX) { in j1939_session_deactivate_locked()
1074 list_del_init(&session->active_session_list_entry); in j1939_session_deactivate_locked()
1075 session->state = J1939_SESSION_DONE; in j1939_session_deactivate_locked()
1076 j1939_session_put(session); in j1939_session_deactivate_locked()
1082 static bool j1939_session_deactivate(struct j1939_session *session) in j1939_session_deactivate() argument
1084 struct j1939_priv *priv = session->priv; in j1939_session_deactivate()
1091 WARN_ON_ONCE(kref_read(&session->kref) < 2); in j1939_session_deactivate()
1092 active = j1939_session_deactivate_locked(session); in j1939_session_deactivate()
1099 j1939_session_deactivate_activate_next(struct j1939_session *session) in j1939_session_deactivate_activate_next() argument
1101 if (j1939_session_deactivate(session)) in j1939_session_deactivate_activate_next()
1102 j1939_sk_queue_activate_next(session); in j1939_session_deactivate_activate_next()
1105 static void __j1939_session_cancel(struct j1939_session *session, in __j1939_session_cancel() argument
1108 struct j1939_priv *priv = session->priv; in __j1939_session_cancel()
1111 lockdep_assert_held(&session->priv->active_session_list_lock); in __j1939_session_cancel()
1113 session->err = j1939_xtp_abort_to_errno(priv, err); in __j1939_session_cancel()
1114 session->state = J1939_SESSION_WAITING_ABORT; in __j1939_session_cancel()
1116 if (!j1939_cb_is_broadcast(&session->skcb)) { in __j1939_session_cancel()
1117 j1939_xtp_tx_abort(priv, &session->skcb, in __j1939_session_cancel()
1118 !session->transmission, in __j1939_session_cancel()
1119 err, session->skcb.addr.pgn); in __j1939_session_cancel()
1122 if (session->sk) in __j1939_session_cancel()
1123 j1939_sk_send_loop_abort(session->sk, session->err); in __j1939_session_cancel()
1126 static void j1939_session_cancel(struct j1939_session *session, in j1939_session_cancel() argument
1129 j1939_session_list_lock(session->priv); in j1939_session_cancel()
1131 if (session->state >= J1939_SESSION_ACTIVE && in j1939_session_cancel()
1132 session->state < J1939_SESSION_WAITING_ABORT) { in j1939_session_cancel()
1133 j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS); in j1939_session_cancel()
1134 __j1939_session_cancel(session, err); in j1939_session_cancel()
1137 j1939_session_list_unlock(session->priv); in j1939_session_cancel()
1142 struct j1939_session *session = in j1939_tp_txtimer() local
1144 struct j1939_priv *priv = session->priv; in j1939_tp_txtimer()
1147 if (session->skcb.addr.type == J1939_SIMPLE) { in j1939_tp_txtimer()
1148 ret = j1939_simple_txnext(session); in j1939_tp_txtimer()
1150 if (session->transmission) in j1939_tp_txtimer()
1151 ret = j1939_xtp_txnext_transmiter(session); in j1939_tp_txtimer()
1153 ret = j1939_xtp_txnext_receiver(session); in j1939_tp_txtimer()
1159 if (session->tx_retry < J1939_XTP_TX_RETRY_LIMIT) { in j1939_tp_txtimer()
1160 session->tx_retry++; in j1939_tp_txtimer()
1161 j1939_tp_schedule_txtimer(session, in j1939_tp_txtimer()
1165 __func__, session); in j1939_tp_txtimer()
1166 session->err = -ENETUNREACH; in j1939_tp_txtimer()
1167 j1939_session_rxtimer_cancel(session); in j1939_tp_txtimer()
1168 j1939_session_deactivate_activate_next(session); in j1939_tp_txtimer()
1180 j1939_session_cancel(session, J1939_XTP_ABORT_ECTS_TOO_BIG); in j1939_tp_txtimer()
1183 session->tx_retry = 0; in j1939_tp_txtimer()
1187 __func__, session, ret); in j1939_tp_txtimer()
1188 if (session->skcb.addr.type != J1939_SIMPLE) { in j1939_tp_txtimer()
1189 j1939_session_cancel(session, J1939_XTP_ABORT_OTHER); in j1939_tp_txtimer()
1191 session->err = ret; in j1939_tp_txtimer()
1192 j1939_session_rxtimer_cancel(session); in j1939_tp_txtimer()
1193 j1939_session_deactivate_activate_next(session); in j1939_tp_txtimer()
1197 j1939_session_put(session); in j1939_tp_txtimer()
1202 static void j1939_session_completed(struct j1939_session *session) in j1939_session_completed() argument
1206 if (!session->transmission) { in j1939_session_completed()
1207 skb = j1939_session_skb_get(session); in j1939_session_completed()
1209 j1939_sk_recv(session->priv, skb); in j1939_session_completed()
1213 j1939_session_deactivate_activate_next(session); in j1939_session_completed()
1218 struct j1939_session *session = container_of(hrtimer, in j1939_tp_rxtimer() local
1221 struct j1939_priv *priv = session->priv; in j1939_tp_rxtimer()
1223 if (session->state == J1939_SESSION_WAITING_ABORT) { in j1939_tp_rxtimer()
1225 __func__, session); in j1939_tp_rxtimer()
1227 j1939_session_deactivate_activate_next(session); in j1939_tp_rxtimer()
1229 } else if (session->skcb.addr.type == J1939_SIMPLE) { in j1939_tp_rxtimer()
1231 __func__, session); in j1939_tp_rxtimer()
1236 session->err = -ETIME; in j1939_tp_rxtimer()
1237 j1939_session_deactivate(session); in j1939_tp_rxtimer()
1239 j1939_session_list_lock(session->priv); in j1939_tp_rxtimer()
1240 if (session->state >= J1939_SESSION_ACTIVE && in j1939_tp_rxtimer()
1241 session->state < J1939_SESSION_ACTIVE_MAX) { in j1939_tp_rxtimer()
1243 __func__, session); in j1939_tp_rxtimer()
1244 j1939_session_get(session); in j1939_tp_rxtimer()
1245 hrtimer_start(&session->rxtimer, in j1939_tp_rxtimer()
1248 __j1939_session_cancel(session, J1939_XTP_ABORT_TIMEOUT); in j1939_tp_rxtimer()
1250 j1939_session_list_unlock(session->priv); in j1939_tp_rxtimer()
1253 j1939_session_put(session); in j1939_tp_rxtimer()
1258 static bool j1939_xtp_rx_cmd_bad_pgn(struct j1939_session *session, in j1939_xtp_rx_cmd_bad_pgn() argument
1263 struct j1939_priv *priv = session->priv; in j1939_xtp_rx_cmd_bad_pgn()
1267 if (session->skcb.addr.pgn == pgn) in j1939_xtp_rx_cmd_bad_pgn()
1304 __func__, session, cmd, pgn, session->skcb.addr.pgn); in j1939_xtp_rx_cmd_bad_pgn()
1315 struct j1939_session *session; in j1939_xtp_rx_abort_one() local
1318 session = j1939_session_get_by_addr(priv, &skcb->addr, reverse, in j1939_xtp_rx_abort_one()
1320 if (!session) in j1939_xtp_rx_abort_one()
1323 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_abort_one()
1327 session, j1939_xtp_ctl_to_pgn(skb->data), abort, in j1939_xtp_rx_abort_one()
1330 j1939_session_timers_cancel(session); in j1939_xtp_rx_abort_one()
1331 session->err = j1939_xtp_abort_to_errno(priv, abort); in j1939_xtp_rx_abort_one()
1332 if (session->sk) in j1939_xtp_rx_abort_one()
1333 j1939_sk_send_loop_abort(session->sk, session->err); in j1939_xtp_rx_abort_one()
1334 j1939_session_deactivate_activate_next(session); in j1939_xtp_rx_abort_one()
1337 j1939_session_put(session); in j1939_xtp_rx_abort_one()
1350 j1939_xtp_rx_eoma_one(struct j1939_session *session, struct sk_buff *skb) in j1939_xtp_rx_eoma_one() argument
1356 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_eoma_one()
1366 if (session->total_message_size != len) { in j1939_xtp_rx_eoma_one()
1367 netdev_warn_once(session->priv->ndev, in j1939_xtp_rx_eoma_one()
1369 __func__, session, session->total_message_size, in j1939_xtp_rx_eoma_one()
1373 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_eoma_one()
1375 session->pkt.tx_acked = session->pkt.total; in j1939_xtp_rx_eoma_one()
1376 j1939_session_timers_cancel(session); in j1939_xtp_rx_eoma_one()
1378 j1939_session_completed(session); in j1939_xtp_rx_eoma_one()
1386 struct j1939_session *session; in j1939_xtp_rx_eoma() local
1388 session = j1939_session_get_by_addr(priv, &skcb->addr, true, in j1939_xtp_rx_eoma()
1390 if (!session) in j1939_xtp_rx_eoma()
1393 j1939_xtp_rx_eoma_one(session, skb); in j1939_xtp_rx_eoma()
1394 j1939_session_put(session); in j1939_xtp_rx_eoma()
1398 j1939_xtp_rx_cts_one(struct j1939_session *session, struct sk_buff *skb) in j1939_xtp_rx_cts_one() argument
1406 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_cts_one()
1409 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_cts_one()
1411 if (session->last_cmd == dat[0]) { in j1939_xtp_rx_cts_one()
1416 if (session->skcb.addr.type == J1939_ETP) in j1939_xtp_rx_cts_one()
1423 else if (dat[1] > session->pkt.block /* 0xff for etp */) in j1939_xtp_rx_cts_one()
1427 session->pkt.tx_acked = pkt - 1; in j1939_xtp_rx_cts_one()
1428 j1939_session_skb_drop_old(session); in j1939_xtp_rx_cts_one()
1429 session->pkt.last = session->pkt.tx_acked + dat[1]; in j1939_xtp_rx_cts_one()
1430 if (session->pkt.last > session->pkt.total) in j1939_xtp_rx_cts_one()
1432 session->pkt.last = session->pkt.total; in j1939_xtp_rx_cts_one()
1434 session->pkt.tx = session->pkt.tx_acked; in j1939_xtp_rx_cts_one()
1436 session->last_cmd = dat[0]; in j1939_xtp_rx_cts_one()
1438 j1939_tp_set_rxtimeout(session, 1250); in j1939_xtp_rx_cts_one()
1439 if (session->transmission) { in j1939_xtp_rx_cts_one()
1440 if (session->pkt.tx_acked) in j1939_xtp_rx_cts_one()
1441 j1939_sk_errqueue(session, in j1939_xtp_rx_cts_one()
1443 j1939_session_txtimer_cancel(session); in j1939_xtp_rx_cts_one()
1444 j1939_tp_schedule_txtimer(session, 0); in j1939_xtp_rx_cts_one()
1448 j1939_tp_set_rxtimeout(session, 550); in j1939_xtp_rx_cts_one()
1453 j1939_session_timers_cancel(session); in j1939_xtp_rx_cts_one()
1454 j1939_session_cancel(session, err); in j1939_xtp_rx_cts_one()
1461 struct j1939_session *session; in j1939_xtp_rx_cts() local
1463 session = j1939_session_get_by_addr(priv, &skcb->addr, true, in j1939_xtp_rx_cts()
1465 if (!session) in j1939_xtp_rx_cts()
1467 j1939_xtp_rx_cts_one(session, skb); in j1939_xtp_rx_cts()
1468 j1939_session_put(session); in j1939_xtp_rx_cts()
1474 struct j1939_session *session; in j1939_session_new() local
1477 session = kzalloc(sizeof(*session), gfp_any()); in j1939_session_new()
1478 if (!session) in j1939_session_new()
1481 INIT_LIST_HEAD(&session->active_session_list_entry); in j1939_session_new()
1482 INIT_LIST_HEAD(&session->sk_session_queue_entry); in j1939_session_new()
1483 kref_init(&session->kref); in j1939_session_new()
1486 session->priv = priv; in j1939_session_new()
1487 session->total_message_size = size; in j1939_session_new()
1488 session->state = J1939_SESSION_NEW; in j1939_session_new()
1490 skb_queue_head_init(&session->skb_queue); in j1939_session_new()
1491 skb_queue_tail(&session->skb_queue, skb); in j1939_session_new()
1494 memcpy(&session->skcb, skcb, sizeof(session->skcb)); in j1939_session_new()
1496 hrtimer_init(&session->txtimer, CLOCK_MONOTONIC, in j1939_session_new()
1498 session->txtimer.function = j1939_tp_txtimer; in j1939_session_new()
1499 hrtimer_init(&session->rxtimer, CLOCK_MONOTONIC, in j1939_session_new()
1501 session->rxtimer.function = j1939_tp_rxtimer; in j1939_session_new()
1504 __func__, session, skcb->addr.sa, skcb->addr.da); in j1939_session_new()
1506 return session; in j1939_session_new()
1516 struct j1939_session *session; in j1939_session_fresh_new() local
1529 session = j1939_session_new(priv, skb, size); in j1939_session_fresh_new()
1530 if (!session) { in j1939_session_fresh_new()
1538 return session; in j1939_session_fresh_new()
1541 int j1939_session_activate(struct j1939_session *session) in j1939_session_activate() argument
1543 struct j1939_priv *priv = session->priv; in j1939_session_activate()
1548 if (session->skcb.addr.type != J1939_SIMPLE) in j1939_session_activate()
1551 &session->skcb.addr, false, in j1939_session_activate()
1552 session->transmission); in j1939_session_activate()
1557 WARN_ON_ONCE(session->state != J1939_SESSION_NEW); in j1939_session_activate()
1558 list_add_tail(&session->active_session_list_entry, in j1939_session_activate()
1560 j1939_session_get(session); in j1939_session_activate()
1561 session->state = J1939_SESSION_ACTIVE; in j1939_session_activate()
1563 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", in j1939_session_activate()
1564 __func__, session); in j1939_session_activate()
1577 struct j1939_session *session; in j1939_xtp_rx_rts_session_new() local
1614 session = j1939_session_fresh_new(priv, len, &skcb); in j1939_xtp_rx_rts_session_new()
1615 if (!session) { in j1939_xtp_rx_rts_session_new()
1622 session->pkt.total = (len + 6) / 7; in j1939_xtp_rx_rts_session_new()
1623 session->pkt.block = 0xff; in j1939_xtp_rx_rts_session_new()
1625 if (dat[3] != session->pkt.total) in j1939_xtp_rx_rts_session_new()
1627 __func__, session, session->pkt.total, in j1939_xtp_rx_rts_session_new()
1629 session->pkt.total = dat[3]; in j1939_xtp_rx_rts_session_new()
1630 session->pkt.block = min(dat[3], dat[4]); in j1939_xtp_rx_rts_session_new()
1633 session->pkt.rx = 0; in j1939_xtp_rx_rts_session_new()
1634 session->pkt.tx = 0; in j1939_xtp_rx_rts_session_new()
1636 WARN_ON_ONCE(j1939_session_activate(session)); in j1939_xtp_rx_rts_session_new()
1638 return session; in j1939_xtp_rx_rts_session_new()
1641 static int j1939_xtp_rx_rts_session_active(struct j1939_session *session, in j1939_xtp_rx_rts_session_active() argument
1645 struct j1939_priv *priv = session->priv; in j1939_xtp_rx_rts_session_active()
1647 if (!session->transmission) { in j1939_xtp_rx_rts_session_active()
1648 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_rts_session_active()
1652 j1939_session_timers_cancel(session); in j1939_xtp_rx_rts_session_active()
1653 j1939_session_cancel(session, J1939_XTP_ABORT_BUSY); in j1939_xtp_rx_rts_session_active()
1656 if (session->last_cmd != 0) { in j1939_xtp_rx_rts_session_active()
1659 __func__, session, skcb->addr.sa, skcb->addr.da, in j1939_xtp_rx_rts_session_active()
1660 session->last_cmd); in j1939_xtp_rx_rts_session_active()
1662 j1939_session_timers_cancel(session); in j1939_xtp_rx_rts_session_active()
1663 j1939_session_cancel(session, J1939_XTP_ABORT_BUSY); in j1939_xtp_rx_rts_session_active()
1668 if (session->skcb.addr.sa != skcb->addr.sa || in j1939_xtp_rx_rts_session_active()
1669 session->skcb.addr.da != skcb->addr.da) in j1939_xtp_rx_rts_session_active()
1671 __func__, session, in j1939_xtp_rx_rts_session_active()
1672 session->skcb.addr.sa, skcb->addr.sa, in j1939_xtp_rx_rts_session_active()
1673 session->skcb.addr.da, skcb->addr.da); in j1939_xtp_rx_rts_session_active()
1678 session->skcb.addr.sa = skcb->addr.sa; in j1939_xtp_rx_rts_session_active()
1679 session->skcb.addr.da = skcb->addr.da; in j1939_xtp_rx_rts_session_active()
1681 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_rts_session_active()
1690 struct j1939_session *session; in j1939_xtp_rx_rts() local
1693 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_rts()
1696 if (!session) { in j1939_xtp_rx_rts()
1715 session = j1939_xtp_rx_rts_session_new(priv, skb); in j1939_xtp_rx_rts()
1716 if (!session) { in j1939_xtp_rx_rts()
1723 if (j1939_xtp_rx_rts_session_active(session, skb)) { in j1939_xtp_rx_rts()
1724 j1939_session_put(session); in j1939_xtp_rx_rts()
1728 session->last_cmd = cmd; in j1939_xtp_rx_rts()
1731 if (!session->transmission) in j1939_xtp_rx_rts()
1732 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_rts()
1734 if (!session->transmission) { in j1939_xtp_rx_rts()
1735 j1939_session_txtimer_cancel(session); in j1939_xtp_rx_rts()
1736 j1939_tp_schedule_txtimer(session, 0); in j1939_xtp_rx_rts()
1738 j1939_tp_set_rxtimeout(session, 1250); in j1939_xtp_rx_rts()
1741 j1939_session_put(session); in j1939_xtp_rx_rts()
1744 static void j1939_xtp_rx_dpo_one(struct j1939_session *session, in j1939_xtp_rx_dpo_one() argument
1749 if (j1939_xtp_rx_cmd_bad_pgn(session, skb)) in j1939_xtp_rx_dpo_one()
1752 netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session); in j1939_xtp_rx_dpo_one()
1755 session->pkt.dpo = j1939_etp_ctl_to_packet(skb->data); in j1939_xtp_rx_dpo_one()
1756 session->last_cmd = dat[0]; in j1939_xtp_rx_dpo_one()
1757 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_dpo_one()
1764 struct j1939_session *session; in j1939_xtp_rx_dpo() local
1766 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dpo()
1768 if (!session) { in j1939_xtp_rx_dpo()
1774 j1939_xtp_rx_dpo_one(session, skb); in j1939_xtp_rx_dpo()
1775 j1939_session_put(session); in j1939_xtp_rx_dpo()
1778 static void j1939_xtp_rx_dat_one(struct j1939_session *session, in j1939_xtp_rx_dat_one() argument
1782 struct j1939_priv *priv = session->priv; in j1939_xtp_rx_dat_one()
1802 switch (session->last_cmd) { in j1939_xtp_rx_dat_one()
1816 session, session->last_cmd); in j1939_xtp_rx_dat_one()
1820 packet = (dat[0] - 1 + session->pkt.dpo); in j1939_xtp_rx_dat_one()
1821 if (packet > session->pkt.total || in j1939_xtp_rx_dat_one()
1822 (session->pkt.rx + 1) > session->pkt.total) { in j1939_xtp_rx_dat_one()
1824 __func__, session); in j1939_xtp_rx_dat_one()
1828 se_skb = j1939_session_skb_get_by_offset(session, packet * 7); in j1939_xtp_rx_dat_one()
1831 session); in j1939_xtp_rx_dat_one()
1842 __func__, session, nbytes, skb->len); in j1939_xtp_rx_dat_one()
1847 if (!session->transmission) { in j1939_xtp_rx_dat_one()
1856 __func__, session, in j1939_xtp_rx_dat_one()
1861 if (packet == session->pkt.rx) in j1939_xtp_rx_dat_one()
1862 session->pkt.rx++; in j1939_xtp_rx_dat_one()
1865 j1939_cb_is_broadcast(&session->skcb)) { in j1939_xtp_rx_dat_one()
1866 if (session->pkt.rx >= session->pkt.total) in j1939_xtp_rx_dat_one()
1872 if (session->pkt.rx >= session->pkt.last) in j1939_xtp_rx_dat_one()
1877 j1939_session_timers_cancel(session); in j1939_xtp_rx_dat_one()
1878 j1939_session_completed(session); in j1939_xtp_rx_dat_one()
1880 if (!session->transmission) in j1939_xtp_rx_dat_one()
1881 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_dat_one()
1883 j1939_tp_set_rxtimeout(session, 1250); in j1939_xtp_rx_dat_one()
1884 if (!session->transmission) in j1939_xtp_rx_dat_one()
1885 j1939_tp_schedule_txtimer(session, 0); in j1939_xtp_rx_dat_one()
1887 j1939_tp_set_rxtimeout(session, 750); in j1939_xtp_rx_dat_one()
1889 session->last_cmd = 0xff; in j1939_xtp_rx_dat_one()
1891 j1939_session_put(session); in j1939_xtp_rx_dat_one()
1897 j1939_session_timers_cancel(session); in j1939_xtp_rx_dat_one()
1898 j1939_session_cancel(session, abort); in j1939_xtp_rx_dat_one()
1899 j1939_session_put(session); in j1939_xtp_rx_dat_one()
1905 struct j1939_session *session; in j1939_xtp_rx_dat() local
1910 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dat()
1912 if (!session) in j1939_xtp_rx_dat()
1916 j1939_xtp_rx_dat_one(session, skb); in j1939_xtp_rx_dat()
1920 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dat()
1922 if (!session) in j1939_xtp_rx_dat()
1926 j1939_xtp_rx_dat_one(session, skb); in j1939_xtp_rx_dat()
1930 session = j1939_session_get_by_addr(priv, &skcb->addr, false, in j1939_xtp_rx_dat()
1932 if (session) in j1939_xtp_rx_dat()
1933 j1939_xtp_rx_dat_one(session, skb); in j1939_xtp_rx_dat()
1942 struct j1939_session *session; in j1939_tp_send() local
1980 session = j1939_session_new(priv, skb, size); in j1939_tp_send()
1981 if (!session) in j1939_tp_send()
1986 session->sk = skb->sk; in j1939_tp_send()
1987 session->transmission = true; in j1939_tp_send()
1988 session->pkt.total = (size + 6) / 7; in j1939_tp_send()
1989 session->pkt.block = skcb->addr.type == J1939_ETP ? 255 : in j1939_tp_send()
1990 min(j1939_tp_block ?: 255, session->pkt.total); in j1939_tp_send()
1992 if (j1939_cb_is_broadcast(&session->skcb)) in j1939_tp_send()
1994 session->pkt.last = session->pkt.total; in j1939_tp_send()
1996 skcb->tskey = session->sk->sk_tskey++; in j1939_tp_send()
1997 session->tskey = skcb->tskey; in j1939_tp_send()
1999 return session; in j1939_tp_send()
2130 struct j1939_session *session; in j1939_simple_recv() local
2140 session = j1939_session_get_simple(priv, skb); in j1939_simple_recv()
2142 if (!session) { in j1939_simple_recv()
2149 j1939_session_timers_cancel(session); in j1939_simple_recv()
2150 j1939_session_deactivate(session); in j1939_simple_recv()
2151 j1939_session_put(session); in j1939_simple_recv()
2156 struct j1939_session *session, *saved; in j1939_cancel_active_session() local
2160 list_for_each_entry_safe(session, saved, in j1939_cancel_active_session()
2163 if (!sk || sk == session->sk) { in j1939_cancel_active_session()
2164 if (hrtimer_try_to_cancel(&session->txtimer) == 1) in j1939_cancel_active_session()
2165 j1939_session_put(session); in j1939_cancel_active_session()
2166 if (hrtimer_try_to_cancel(&session->rxtimer) == 1) in j1939_cancel_active_session()
2167 j1939_session_put(session); in j1939_cancel_active_session()
2169 session->err = ESHUTDOWN; in j1939_cancel_active_session()
2170 j1939_session_deactivate_locked(session); in j1939_cancel_active_session()