Merge remote-tracking branch 'net-next/master' into mac80211-next

Resolve the merge conflict between Felix's/my and Toke's patches
coming into the tree through net and mac80211-next respectively.
Most of Felix's changes go away due to Toke's new infrastructure
work, my patch changes to "goto begin" (the label wasn't there
before) instead of returning NULL so flow control towards drivers
is preserved better.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 161 insertions, 25 deletions

diff --git a/net/rxrpc/misc.c b/net/rxrpc/misc.c
index 8b910780f1ac..9d1c721bc4e8 100644
--- a/net/rxrpc/misc.c
+++ b/net/rxrpc/misc.c
@@ -21,28 +21,33 @@
 unsigned int rxrpc_max_backlog __read_mostly = 10;
 
 /*
+ * Maximum lifetime of a call (in mx).
+ */
+unsigned int rxrpc_max_call_lifetime = 60 * 1000;
+
+/*
  * How long to wait before scheduling ACK generation after seeing a
- * packet with RXRPC_REQUEST_ACK set (in jiffies).
+ * packet with RXRPC_REQUEST_ACK set (in ms).
  */
 unsigned int rxrpc_requested_ack_delay = 1;
 
 /*
- * How long to wait before scheduling an ACK with subtype DELAY (in jiffies).
+ * How long to wait before scheduling an ACK with subtype DELAY (in ms).
  *
  * We use this when we've received new data packets.  If those packets aren't
  * all consumed within this time we will send a DELAY ACK if an ACK was not
  * requested to let the sender know it doesn't need to resend.
  */
-unsigned int rxrpc_soft_ack_delay = 1 * HZ;
+unsigned int rxrpc_soft_ack_delay = 1 * 1000;
 
 /*
- * How long to wait before scheduling an ACK with subtype IDLE (in jiffies).
+ * How long to wait before scheduling an ACK with subtype IDLE (in ms).
  *
  * We use this when we've consumed some previously soft-ACK'd packets when
  * further packets aren't immediately received to decide when to send an IDLE
  * ACK let the other end know that it can free up its Tx buffer space.
  */
-unsigned int rxrpc_idle_ack_delay = 0.5 * HZ;
+unsigned int rxrpc_idle_ack_delay = 0.5 * 1000;
 
 /*
  * Receive window size in packets.  This indicates the maximum number of
@@ -68,9 +73,9 @@ unsigned int rxrpc_rx_mtu = 5692;
 unsigned int rxrpc_rx_jumbo_max = 4;
 
 /*
- * Time till packet resend (in jiffies).
+ * Time till packet resend (in milliseconds).
  */
-unsigned int rxrpc_resend_timeout = 4 * HZ;
+unsigned int rxrpc_resend_timeout = 4 * 1000;
 
 const char *const rxrpc_pkts[] = {
 	"?00",
@@ -83,21 +88,152 @@ const s8 rxrpc_ack_priority[] = {
 	[RXRPC_ACK_DELAY]		= 1,
 	[RXRPC_ACK_REQUESTED]		= 2,
 	[RXRPC_ACK_IDLE]		= 3,
-	[RXRPC_ACK_PING_RESPONSE]	= 4,
-	[RXRPC_ACK_DUPLICATE]		= 5,
-	[RXRPC_ACK_OUT_OF_SEQUENCE]	= 6,
-	[RXRPC_ACK_EXCEEDS_WINDOW]	= 7,
-	[RXRPC_ACK_NOSPACE]		= 8,
-};
-
-const char *rxrpc_acks(u8 reason)
-{
-	static const char *const str[] = {
-		"---", "REQ", "DUP", "OOS", "WIN", "MEM", "PNG", "PNR", "DLY",
-		"IDL", "-?-"
-	};
-
-	if (reason >= ARRAY_SIZE(str))
-		reason = ARRAY_SIZE(str) - 1;
-	return str[reason];
-}
+	[RXRPC_ACK_DUPLICATE]		= 4,
+	[RXRPC_ACK_OUT_OF_SEQUENCE]	= 5,
+	[RXRPC_ACK_EXCEEDS_WINDOW]	= 6,
+	[RXRPC_ACK_NOSPACE]		= 7,
+	[RXRPC_ACK_PING_RESPONSE]	= 8,
+	[RXRPC_ACK_PING]		= 9,
+};
+
+const char const rxrpc_ack_names[RXRPC_ACK__INVALID + 1][4] = {
+	"---", "REQ", "DUP", "OOS", "WIN", "MEM", "PNG", "PNR", "DLY",
+	"IDL", "-?-"
+};
+
+const char rxrpc_skb_traces[rxrpc_skb__nr_trace][7] = {
+	[rxrpc_skb_rx_cleaned]		= "Rx CLN",
+	[rxrpc_skb_rx_freed]		= "Rx FRE",
+	[rxrpc_skb_rx_got]		= "Rx GOT",
+	[rxrpc_skb_rx_lost]		= "Rx *L*",
+	[rxrpc_skb_rx_received]		= "Rx RCV",
+	[rxrpc_skb_rx_purged]		= "Rx PUR",
+	[rxrpc_skb_rx_rotated]		= "Rx ROT",
+	[rxrpc_skb_rx_seen]		= "Rx SEE",
+	[rxrpc_skb_tx_cleaned]		= "Tx CLN",
+	[rxrpc_skb_tx_freed]		= "Tx FRE",
+	[rxrpc_skb_tx_got]		= "Tx GOT",
+	[rxrpc_skb_tx_new]		= "Tx NEW",
+	[rxrpc_skb_tx_rotated]		= "Tx ROT",
+	[rxrpc_skb_tx_seen]		= "Tx SEE",
+};
+
+const char rxrpc_conn_traces[rxrpc_conn__nr_trace][4] = {
+	[rxrpc_conn_new_client]		= "NWc",
+	[rxrpc_conn_new_service]	= "NWs",
+	[rxrpc_conn_queued]		= "QUE",
+	[rxrpc_conn_seen]		= "SEE",
+	[rxrpc_conn_got]		= "GOT",
+	[rxrpc_conn_put_client]		= "PTc",
+	[rxrpc_conn_put_service]	= "PTs",
+};
+
+const char rxrpc_client_traces[rxrpc_client__nr_trace][7] = {
+	[rxrpc_client_activate_chans]	= "Activa",
+	[rxrpc_client_alloc]		= "Alloc ",
+	[rxrpc_client_chan_activate]	= "ChActv",
+	[rxrpc_client_chan_disconnect]	= "ChDisc",
+	[rxrpc_client_chan_pass]	= "ChPass",
+	[rxrpc_client_chan_unstarted]	= "ChUnst",
+	[rxrpc_client_cleanup]		= "Clean ",
+	[rxrpc_client_count]		= "Count ",
+	[rxrpc_client_discard]		= "Discar",
+	[rxrpc_client_duplicate]	= "Duplic",
+	[rxrpc_client_exposed]		= "Expose",
+	[rxrpc_client_replace]		= "Replac",
+	[rxrpc_client_to_active]	= "->Actv",
+	[rxrpc_client_to_culled]	= "->Cull",
+	[rxrpc_client_to_idle]		= "->Idle",
+	[rxrpc_client_to_inactive]	= "->Inac",
+	[rxrpc_client_to_waiting]	= "->Wait",
+	[rxrpc_client_uncount]		= "Uncoun",
+};
+
+const char rxrpc_transmit_traces[rxrpc_transmit__nr_trace][4] = {
+	[rxrpc_transmit_wait]		= "WAI",
+	[rxrpc_transmit_queue]		= "QUE",
+	[rxrpc_transmit_queue_last]	= "QLS",
+	[rxrpc_transmit_rotate]		= "ROT",
+	[rxrpc_transmit_rotate_last]	= "RLS",
+	[rxrpc_transmit_await_reply]	= "AWR",
+	[rxrpc_transmit_end]		= "END",
+};
+
+const char rxrpc_receive_traces[rxrpc_receive__nr_trace][4] = {
+	[rxrpc_receive_incoming]	= "INC",
+	[rxrpc_receive_queue]		= "QUE",
+	[rxrpc_receive_queue_last]	= "QLS",
+	[rxrpc_receive_front]		= "FRN",
+	[rxrpc_receive_rotate]		= "ROT",
+	[rxrpc_receive_end]		= "END",
+};
+
+const char rxrpc_recvmsg_traces[rxrpc_recvmsg__nr_trace][5] = {
+	[rxrpc_recvmsg_enter]		= "ENTR",
+	[rxrpc_recvmsg_wait]		= "WAIT",
+	[rxrpc_recvmsg_dequeue]		= "DEQU",
+	[rxrpc_recvmsg_hole]		= "HOLE",
+	[rxrpc_recvmsg_next]		= "NEXT",
+	[rxrpc_recvmsg_cont]		= "CONT",
+	[rxrpc_recvmsg_full]		= "FULL",
+	[rxrpc_recvmsg_data_return]	= "DATA",
+	[rxrpc_recvmsg_terminal]	= "TERM",
+	[rxrpc_recvmsg_to_be_accepted]	= "TBAC",
+	[rxrpc_recvmsg_return]		= "RETN",
+};
+
+const char rxrpc_rtt_tx_traces[rxrpc_rtt_tx__nr_trace][5] = {
+	[rxrpc_rtt_tx_ping]		= "PING",
+	[rxrpc_rtt_tx_data]		= "DATA",
+};
+
+const char rxrpc_rtt_rx_traces[rxrpc_rtt_rx__nr_trace][5] = {
+	[rxrpc_rtt_rx_ping_response]	= "PONG",
+	[rxrpc_rtt_rx_requested_ack]	= "RACK",
+};
+
+const char rxrpc_timer_traces[rxrpc_timer__nr_trace][8] = {
+	[rxrpc_timer_begin]			= "Begin ",
+	[rxrpc_timer_expired]			= "*EXPR*",
+	[rxrpc_timer_init_for_reply]		= "IniRpl",
+	[rxrpc_timer_set_for_ack]		= "SetAck",
+	[rxrpc_timer_set_for_send]		= "SetTx ",
+	[rxrpc_timer_set_for_resend]		= "SetRTx",
+};
+
+const char rxrpc_propose_ack_traces[rxrpc_propose_ack__nr_trace][8] = {
+	[rxrpc_propose_ack_client_tx_end]	= "ClTxEnd",
+	[rxrpc_propose_ack_input_data]		= "DataIn ",
+	[rxrpc_propose_ack_ping_for_lost_ack]	= "LostAck",
+	[rxrpc_propose_ack_ping_for_lost_reply]	= "LostRpl",
+	[rxrpc_propose_ack_ping_for_params]	= "Params ",
+	[rxrpc_propose_ack_respond_to_ack]	= "Rsp2Ack",
+	[rxrpc_propose_ack_respond_to_ping]	= "Rsp2Png",
+	[rxrpc_propose_ack_retry_tx]		= "RetryTx",
+	[rxrpc_propose_ack_rotate_rx]		= "RxAck  ",
+	[rxrpc_propose_ack_terminal_ack]	= "ClTerm ",
+};
+
+const char *const rxrpc_propose_ack_outcomes[rxrpc_propose_ack__nr_outcomes] = {
+	[rxrpc_propose_ack_use]			= "",
+	[rxrpc_propose_ack_update]		= " Update",
+	[rxrpc_propose_ack_subsume]		= " Subsume",
+};
+
+const char rxrpc_congest_modes[NR__RXRPC_CONGEST_MODES][10] = {
+	[RXRPC_CALL_SLOW_START]		= "SlowStart",
+	[RXRPC_CALL_CONGEST_AVOIDANCE]	= "CongAvoid",
+	[RXRPC_CALL_PACKET_LOSS]	= "PktLoss  ",
+	[RXRPC_CALL_FAST_RETRANSMIT]	= "FastReTx ",
+};
+
+const char rxrpc_congest_changes[rxrpc_congest__nr_change][9] = {
+	[rxrpc_cong_begin_retransmission]	= " Retrans",
+	[rxrpc_cong_cleared_nacks]		= " Cleared",
+	[rxrpc_cong_new_low_nack]		= " NewLowN",
+	[rxrpc_cong_no_change]			= "",
+	[rxrpc_cong_progress]			= " Progres",
+	[rxrpc_cong_retransmit_again]		= " ReTxAgn",
+	[rxrpc_cong_rtt_window_end]		= " RttWinE",
+	[rxrpc_cong_saw_nack]			= " SawNack",
+};