From 0df48c26d8418c5c9fba63fac15b660d70ca2f1c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 28 Apr 2015 15:28:17 -0700
Subject: tcp: add tcpi_bytes_acked to tcp_info

This patch tracks total number of bytes acked for a TCP socket.
This is the sum of all changes done to tp->snd_una, and allows
for precise tracking of delivered data.

RFC4898 named this : tcpEStatsAppHCThruOctetsAcked

This is a 64bit field, and can be fetched both from TCP_INFO
getsockopt() if one has a handle on a TCP socket, or from inet_diag
netlink facility (iproute2/ss patch will follow)

Note that tp->bytes_acked was placed near tp->snd_una for
best data locality and minimal performance impact.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Cc: Matt Mathis <mattmathis@google.com>
Cc: Eric Salo <salo@google.com>
Cc: Martin Lau <kafai@fb.com>
Cc: Chris Rapier <rapier@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/tcp.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/uapi')

diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index 3b9718328d8b..6666e98a0af9 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -189,6 +189,7 @@ struct tcp_info {
 
 	__u64	tcpi_pacing_rate;
 	__u64	tcpi_max_pacing_rate;
+	__u64	tcpi_bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
 };
 
 /* for TCP_MD5SIG socket option */
-- 
cgit v1.2.3


From bdd1f9edacb5f5835d1e6276571bbbe5b88ded48 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 28 Apr 2015 15:28:18 -0700
Subject: tcp: add tcpi_bytes_received to tcp_info

This patch tracks total number of payload bytes received on a TCP socket.
This is the sum of all changes done to tp->rcv_nxt

RFC4898 named this : tcpEStatsAppHCThruOctetsReceived

This is a 64bit field, and can be fetched both from TCP_INFO
getsockopt() if one has a handle on a TCP socket, or from inet_diag
netlink facility (iproute2/ss patch will follow)

Note that tp->bytes_received was placed near tp->rcv_nxt for
best data locality and minimal performance impact.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Matt Mathis <mattmathis@google.com>
Cc: Eric Salo <salo@google.com>
Cc: Martin Lau <kafai@fb.com>
Cc: Chris Rapier <rapier@psc.edu>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/tcp.h      |  4 ++++
 include/uapi/linux/tcp.h |  1 +
 net/ipv4/tcp.c           |  1 +
 net/ipv4/tcp_fastopen.c  |  1 +
 net/ipv4/tcp_input.c     | 17 +++++++++++++----
 5 files changed, 20 insertions(+), 4 deletions(-)

(limited to 'include/uapi')

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 0f73b43171da..3b2911502a8c 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -145,6 +145,10 @@ struct tcp_sock {
  *	read the code and the spec side by side (and laugh ...)
  *	See RFC793 and RFC1122. The RFC writes these in capitals.
  */
+	u64	bytes_received;	/* RFC4898 tcpEStatsAppHCThruOctetsReceived
+				 * sum(delta(rcv_nxt)), or how many bytes
+				 * were acked.
+				 */
  	u32	rcv_nxt;	/* What we want to receive next 	*/
 	u32	copied_seq;	/* Head of yet unread data		*/
 	u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index 6666e98a0af9..a48f93f3207b 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -190,6 +190,7 @@ struct tcp_info {
 	__u64	tcpi_pacing_rate;
 	__u64	tcpi_max_pacing_rate;
 	__u64	tcpi_bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
+	__u64	tcpi_bytes_received; /* RFC4898 tcpEStatsAppHCThruOctetsReceived */
 };
 
 /* for TCP_MD5SIG socket option */
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 4bf0e8ca7b5b..99fcc0b22c92 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2666,6 +2666,7 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info)
 
 	spin_lock_bh(&sk->sk_lock.slock);
 	info->tcpi_bytes_acked = tp->bytes_acked;
+	info->tcpi_bytes_received = tp->bytes_received;
 	spin_unlock_bh(&sk->sk_lock.slock);
 }
 EXPORT_SYMBOL_GPL(tcp_get_info);
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index e3d87aca6be8..3c673d5e6cff 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -206,6 +206,7 @@ static bool tcp_fastopen_create_child(struct sock *sk,
 			skb_set_owner_r(skb2, child);
 			__skb_queue_tail(&child->sk_receive_queue, skb2);
 			tp->syn_data_acked = 1;
+			tp->bytes_received = end_seq - TCP_SKB_CB(skb)->seq - 1;
 		} else {
 			end_seq = TCP_SKB_CB(skb)->seq + 1;
 		}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 378d3f4d4dc3..7e6962bcfc30 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3289,6 +3289,15 @@ static void tcp_snd_una_update(struct tcp_sock *tp, u32 ack)
 	tp->snd_una = ack;
 }
 
+/* If we update tp->rcv_nxt, also update tp->bytes_received */
+static void tcp_rcv_nxt_update(struct tcp_sock *tp, u32 seq)
+{
+	u32 delta = seq - tp->rcv_nxt;
+
+	tp->bytes_received += delta;
+	tp->rcv_nxt = seq;
+}
+
 /* Update our send window.
  *
  * Window update algorithm, described in RFC793/RFC1122 (used in linux-2.2
@@ -4245,7 +4254,7 @@ static void tcp_ofo_queue(struct sock *sk)
 
 		tail = skb_peek_tail(&sk->sk_receive_queue);
 		eaten = tail && tcp_try_coalesce(sk, tail, skb, &fragstolen);
-		tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+		tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq);
 		if (!eaten)
 			__skb_queue_tail(&sk->sk_receive_queue, skb);
 		if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
@@ -4413,7 +4422,7 @@ static int __must_check tcp_queue_rcv(struct sock *sk, struct sk_buff *skb, int
 	__skb_pull(skb, hdrlen);
 	eaten = (tail &&
 		 tcp_try_coalesce(sk, tail, skb, fragstolen)) ? 1 : 0;
-	tcp_sk(sk)->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+	tcp_rcv_nxt_update(tcp_sk(sk), TCP_SKB_CB(skb)->end_seq);
 	if (!eaten) {
 		__skb_queue_tail(&sk->sk_receive_queue, skb);
 		skb_set_owner_r(skb, sk);
@@ -4506,7 +4515,7 @@ queue_and_out:
 
 			eaten = tcp_queue_rcv(sk, skb, 0, &fragstolen);
 		}
-		tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+		tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq);
 		if (skb->len)
 			tcp_event_data_recv(sk, skb);
 		if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
@@ -5254,7 +5263,7 @@ void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 					tcp_rcv_rtt_measure_ts(sk, skb);
 
 					__skb_pull(skb, tcp_header_len);
-					tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+					tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq);
 					NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPHPHITSTOUSER);
 					eaten = 1;
 				}
-- 
cgit v1.2.3


From 64f40ff5bbdb1b679fb3c4dbc8230d6517d2b8dc Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 28 Apr 2015 16:23:48 -0700
Subject: tcp: prepare CC get_info() access from getsockopt()

We would like that optional info provided by Congestion Control
modules using netlink can also be read using getsockopt()

This patch changes get_info() to put this information in a buffer,
instead of skb, like tcp_get_info(), so that following patch
can reuse this common infrastructure.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h              |  5 ++++-
 include/uapi/linux/inet_diag.h |  4 ++++
 net/ipv4/inet_diag.c           |  8 +++++---
 net/ipv4/tcp_dctcp.c           | 20 ++++++++++----------
 net/ipv4/tcp_illinois.c        | 21 +++++++++++----------
 net/ipv4/tcp_vegas.c           | 19 ++++++++++---------
 net/ipv4/tcp_vegas.h           |  3 ++-
 7 files changed, 46 insertions(+), 34 deletions(-)

(limited to 'include/uapi')

diff --git a/include/net/tcp.h b/include/net/tcp.h
index dd7b4ea6a10c..6d204f3f9df8 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -804,6 +804,8 @@ enum tcp_ca_ack_event_flags {
 /* Requires ECN/ECT set on all packets */
 #define TCP_CONG_NEEDS_ECN	0x2
 
+union tcp_cc_info;
+
 struct tcp_congestion_ops {
 	struct list_head	list;
 	u32 key;
@@ -829,7 +831,8 @@ struct tcp_congestion_ops {
 	/* hook for packet ack accounting (optional) */
 	void (*pkts_acked)(struct sock *sk, u32 num_acked, s32 rtt_us);
 	/* get info for inet_diag (optional) */
-	int (*get_info)(struct sock *sk, u32 ext, struct sk_buff *skb);
+	size_t (*get_info)(struct sock *sk, u32 ext, int *attr,
+			   union tcp_cc_info *info);
 
 	char 		name[TCP_CA_NAME_MAX];
 	struct module 	*owner;
diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h
index d65c0a09efd3..c7093c75bdd6 100644
--- a/include/uapi/linux/inet_diag.h
+++ b/include/uapi/linux/inet_diag.h
@@ -143,4 +143,8 @@ struct tcp_dctcp_info {
 	__u32	dctcp_ab_tot;
 };
 
+union tcp_cc_info {
+	struct tcpvegas_info	vegas;
+	struct tcp_dctcp_info	dctcp;
+};
 #endif /* _UAPI_INET_DIAG_H_ */
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index bb77ebdae3b3..4d32262c7502 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -224,14 +224,16 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 	handler->idiag_get_info(sk, r, info);
 
 	if (sk->sk_state < TCP_TIME_WAIT) {
-		int err = 0;
+		union tcp_cc_info info;
+		size_t sz = 0;
+		int attr;
 
 		rcu_read_lock();
 		ca_ops = READ_ONCE(icsk->icsk_ca_ops);
 		if (ca_ops && ca_ops->get_info)
-			err = ca_ops->get_info(sk, ext, skb);
+			sz = ca_ops->get_info(sk, ext, &attr, &info);
 		rcu_read_unlock();
-		if (err < 0)
+		if (sz && nla_put(skb, attr, sz, &info) < 0)
 			goto errout;
 	}
 
diff --git a/net/ipv4/tcp_dctcp.c b/net/ipv4/tcp_dctcp.c
index 4376016f7fa5..4c41c1287197 100644
--- a/net/ipv4/tcp_dctcp.c
+++ b/net/ipv4/tcp_dctcp.c
@@ -277,7 +277,8 @@ static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev)
 	}
 }
 
-static int dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+static size_t dctcp_get_info(struct sock *sk, u32 ext, int *attr,
+			     union tcp_cc_info *info)
 {
 	const struct dctcp *ca = inet_csk_ca(sk);
 
@@ -286,18 +287,17 @@ static int dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
 	 */
 	if (ext & (1 << (INET_DIAG_DCTCPINFO - 1)) ||
 	    ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
-		struct tcp_dctcp_info info;
-
-		memset(&info, 0, sizeof(info));
+		memset(info, 0, sizeof(struct tcp_dctcp_info));
 		if (inet_csk(sk)->icsk_ca_ops != &dctcp_reno) {
-			info.dctcp_enabled = 1;
-			info.dctcp_ce_state = (u16) ca->ce_state;
-			info.dctcp_alpha = ca->dctcp_alpha;
-			info.dctcp_ab_ecn = ca->acked_bytes_ecn;
-			info.dctcp_ab_tot = ca->acked_bytes_total;
+			info->dctcp.dctcp_enabled = 1;
+			info->dctcp.dctcp_ce_state = (u16) ca->ce_state;
+			info->dctcp.dctcp_alpha = ca->dctcp_alpha;
+			info->dctcp.dctcp_ab_ecn = ca->acked_bytes_ecn;
+			info->dctcp.dctcp_ab_tot = ca->acked_bytes_total;
 		}
 
-		return nla_put(skb, INET_DIAG_DCTCPINFO, sizeof(info), &info);
+		*attr = INET_DIAG_DCTCPINFO;
+		return sizeof(*info);
 	}
 	return 0;
 }
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 67476f085e48..f71002e4db0b 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -300,24 +300,25 @@ static u32 tcp_illinois_ssthresh(struct sock *sk)
 }
 
 /* Extract info for Tcp socket info provided via netlink. */
-static int tcp_illinois_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+static size_t tcp_illinois_info(struct sock *sk, u32 ext, int *attr,
+				union tcp_cc_info *info)
 {
 	const struct illinois *ca = inet_csk_ca(sk);
 
 	if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
-		struct tcpvegas_info info = {
-			.tcpv_enabled = 1,
-			.tcpv_rttcnt = ca->cnt_rtt,
-			.tcpv_minrtt = ca->base_rtt,
-		};
+		info->vegas.tcpv_enabled = 1;
+		info->vegas.tcpv_rttcnt = ca->cnt_rtt;
+		info->vegas.tcpv_minrtt = ca->base_rtt;
+		info->vegas.tcpv_rtt = 0;
 
-		if (info.tcpv_rttcnt > 0) {
+		if (info->vegas.tcpv_rttcnt > 0) {
 			u64 t = ca->sum_rtt;
 
-			do_div(t, info.tcpv_rttcnt);
-			info.tcpv_rtt = t;
+			do_div(t, info->vegas.tcpv_rttcnt);
+			info->vegas.tcpv_rtt = t;
 		}
-		return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+		*attr = INET_DIAG_VEGASINFO;
+		return sizeof(struct tcpvegas_info);
 	}
 	return 0;
 }
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index c71a1b8f7bde..a6cea1d5e20d 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -286,18 +286,19 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 acked)
 }
 
 /* Extract info for Tcp socket info provided via netlink. */
-int tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
+			  union tcp_cc_info *info)
 {
 	const struct vegas *ca = inet_csk_ca(sk);
+
 	if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
-		struct tcpvegas_info info = {
-			.tcpv_enabled = ca->doing_vegas_now,
-			.tcpv_rttcnt = ca->cntRTT,
-			.tcpv_rtt = ca->baseRTT,
-			.tcpv_minrtt = ca->minRTT,
-		};
-
-		return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+		info->vegas.tcpv_enabled = ca->doing_vegas_now,
+		info->vegas.tcpv_rttcnt = ca->cntRTT,
+		info->vegas.tcpv_rtt = ca->baseRTT,
+		info->vegas.tcpv_minrtt = ca->minRTT,
+
+		*attr = INET_DIAG_VEGASINFO;
+		return sizeof(struct tcpvegas_info);
 	}
 	return 0;
 }
diff --git a/net/ipv4/tcp_vegas.h b/net/ipv4/tcp_vegas.h
index e8a6b33cc61d..ef9da5306c68 100644
--- a/net/ipv4/tcp_vegas.h
+++ b/net/ipv4/tcp_vegas.h
@@ -19,6 +19,7 @@ void tcp_vegas_init(struct sock *sk);
 void tcp_vegas_state(struct sock *sk, u8 ca_state);
 void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us);
 void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
-int tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
+size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
+			  union tcp_cc_info *info);
 
 #endif	/* __TCP_VEGAS_H */
-- 
cgit v1.2.3


From 6e9250f59ef9efb932c84850cd221f22c2a03c4a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 28 Apr 2015 16:23:49 -0700
Subject: tcp: add TCP_CC_INFO socket option

Some Congestion Control modules can provide per flow information,
but current way to get this information is to use netlink.

Like TCP_INFO, let's add TCP_CC_INFO so that applications can
issue a getsockopt() if they have a socket file descriptor,
instead of playing complex netlink games.

Sample usage would be :

  union tcp_cc_info info;
  socklen_t len = sizeof(info);

  if (getsockopt(fd, SOL_TCP, TCP_CC_INFO, &info, &len) == -1)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/tcp.h |  1 +
 net/ipv4/tcp.c           | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+)

(limited to 'include/uapi')

diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index a48f93f3207b..faa72f4fa547 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -112,6 +112,7 @@ enum {
 #define TCP_FASTOPEN		23	/* Enable FastOpen on listeners */
 #define TCP_TIMESTAMP		24
 #define TCP_NOTSENT_LOWAT	25	/* limit number of unsent bytes in write queue */
+#define TCP_CC_INFO		26	/* Get Congestion Control (optional) info */
 
 struct tcp_repair_opt {
 	__u32	opt_code;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 99fcc0b22c92..46efa03d2b11 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -252,6 +252,7 @@
 #include <linux/types.h>
 #include <linux/fcntl.h>
 #include <linux/poll.h>
+#include <linux/inet_diag.h>
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/skbuff.h>
@@ -2739,6 +2740,26 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
 			return -EFAULT;
 		return 0;
 	}
+	case TCP_CC_INFO: {
+		const struct tcp_congestion_ops *ca_ops;
+		union tcp_cc_info info;
+		size_t sz = 0;
+		int attr;
+
+		if (get_user(len, optlen))
+			return -EFAULT;
+
+		ca_ops = icsk->icsk_ca_ops;
+		if (ca_ops && ca_ops->get_info)
+			sz = ca_ops->get_info(sk, ~0U, &attr, &info);
+
+		len = min_t(unsigned int, len, sz);
+		if (put_user(len, optlen))
+			return -EFAULT;
+		if (copy_to_user(optval, &info, len))
+			return -EFAULT;
+		return 0;
+	}
 	case TCP_QUICKACK:
 		val = !icsk->icsk_ack.pingpong;
 		break;
-- 
cgit v1.2.3


From c967a0873a7836c7a77bf611f1c7d3f47c554c45 Mon Sep 17 00:00:00 2001
From: Tom Herbert <tom@herbertland.com>
Date: Tue, 5 May 2015 09:06:30 -0700
Subject: mpls: Move reserved label definitions

Move to include/uapi/linux/mpls.h to be externally visibile.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/mpls.h | 10 ++++++++++
 net/mpls/af_mpls.c        | 18 +++++++++---------
 net/mpls/internal.h       | 10 ----------
 3 files changed, 19 insertions(+), 19 deletions(-)

(limited to 'include/uapi')

diff --git a/include/uapi/linux/mpls.h b/include/uapi/linux/mpls.h
index bc9abfe88c9a..0fe6ea5a41d5 100644
--- a/include/uapi/linux/mpls.h
+++ b/include/uapi/linux/mpls.h
@@ -31,4 +31,14 @@ struct mpls_label {
 #define MPLS_LS_TTL_MASK        0x000000FF
 #define MPLS_LS_TTL_SHIFT       0
 
+/* Reserved labels */
+#define MPLS_LABEL_IPV4_EXPLICIT_NULL	0 /* RFC3032 */
+#define MPLS_LABEL_ROUTER_ALERT		1 /* RFC3032 */
+#define MPLS_LABEL_IPV6_EXPLICIT_NULL	2 /* RFC3032 */
+#define MPLS_LABEL_IMPLICIT_NULL	3 /* RFC3032 */
+#define MPLS_LABEL_ENTROPY_INDICATOR	7 /* RFC6790 */
+#define MPLS_LABEL_GAL			13 /* RFC5586 */
+#define MPLS_LABEL_OAM_ALERT		14 /* RFC3429 */
+#define MPLS_LABEL_EXTENSION		15 /* RFC7274 */
+
 #endif /* _UAPI_MPLS_H */
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index 954810c76a86..b6eb7615960a 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -647,7 +647,7 @@ int nla_get_labels(const struct nlattr *nla,
 			return -EINVAL;
 
 		switch (dec.label) {
-		case LABEL_IMPLICIT_NULL:
+		case MPLS_LABEL_IMPLICIT_NULL:
 			/* RFC3032: This is a label that an LSR may
 			 * assign and distribute, but which never
 			 * actually appears in the encapsulation.
@@ -935,7 +935,7 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 	}
 
 	/* In case the predefined labels need to be populated */
-	if (limit > LABEL_IPV4_EXPLICIT_NULL) {
+	if (limit > MPLS_LABEL_IPV4_EXPLICIT_NULL) {
 		struct net_device *lo = net->loopback_dev;
 		rt0 = mpls_rt_alloc(lo->addr_len);
 		if (!rt0)
@@ -945,7 +945,7 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 		rt0->rt_via_table = NEIGH_LINK_TABLE;
 		memcpy(rt0->rt_via, lo->dev_addr, lo->addr_len);
 	}
-	if (limit > LABEL_IPV6_EXPLICIT_NULL) {
+	if (limit > MPLS_LABEL_IPV6_EXPLICIT_NULL) {
 		struct net_device *lo = net->loopback_dev;
 		rt2 = mpls_rt_alloc(lo->addr_len);
 		if (!rt2)
@@ -973,15 +973,15 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 	memcpy(labels, old, cp_size);
 
 	/* If needed set the predefined labels */
-	if ((old_limit <= LABEL_IPV6_EXPLICIT_NULL) &&
-	    (limit > LABEL_IPV6_EXPLICIT_NULL)) {
-		RCU_INIT_POINTER(labels[LABEL_IPV6_EXPLICIT_NULL], rt2);
+	if ((old_limit <= MPLS_LABEL_IPV6_EXPLICIT_NULL) &&
+	    (limit > MPLS_LABEL_IPV6_EXPLICIT_NULL)) {
+		RCU_INIT_POINTER(labels[MPLS_LABEL_IPV6_EXPLICIT_NULL], rt2);
 		rt2 = NULL;
 	}
 
-	if ((old_limit <= LABEL_IPV4_EXPLICIT_NULL) &&
-	    (limit > LABEL_IPV4_EXPLICIT_NULL)) {
-		RCU_INIT_POINTER(labels[LABEL_IPV4_EXPLICIT_NULL], rt0);
+	if ((old_limit <= MPLS_LABEL_IPV4_EXPLICIT_NULL) &&
+	    (limit > MPLS_LABEL_IPV4_EXPLICIT_NULL)) {
+		RCU_INIT_POINTER(labels[MPLS_LABEL_IPV4_EXPLICIT_NULL], rt0);
 		rt0 = NULL;
 	}
 
diff --git a/net/mpls/internal.h b/net/mpls/internal.h
index 693877d69606..b064c345042c 100644
--- a/net/mpls/internal.h
+++ b/net/mpls/internal.h
@@ -1,16 +1,6 @@
 #ifndef MPLS_INTERNAL_H
 #define MPLS_INTERNAL_H
 
-#define LABEL_IPV4_EXPLICIT_NULL	0 /* RFC3032 */
-#define LABEL_ROUTER_ALERT_LABEL	1 /* RFC3032 */
-#define LABEL_IPV6_EXPLICIT_NULL	2 /* RFC3032 */
-#define LABEL_IMPLICIT_NULL		3 /* RFC3032 */
-#define LABEL_ENTROPY_INDICATOR		7 /* RFC6790 */
-#define LABEL_GAL			13 /* RFC5586 */
-#define LABEL_OAM_ALERT			14 /* RFC3429 */
-#define LABEL_EXTENSION			15 /* RFC7274 */
-
-
 struct mpls_shim_hdr {
 	__be32 label_stack_entry;
 };
-- 
cgit v1.2.3


From 78f5b899195019f71f7593c604d75ca61658eae3 Mon Sep 17 00:00:00 2001
From: Tom Herbert <tom@herbertland.com>
Date: Thu, 7 May 2015 08:08:51 -0700
Subject: mpls: Change reserved label names to be consistent with netbsd

Since these are now visible to userspace it is nice to be consistent
with BSD (sys/netmpls/mpls.h in netBSD).

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/mpls.h | 12 ++++++------
 net/mpls/af_mpls.c        | 18 +++++++++---------
 2 files changed, 15 insertions(+), 15 deletions(-)

(limited to 'include/uapi')

diff --git a/include/uapi/linux/mpls.h b/include/uapi/linux/mpls.h
index 0fe6ea5a41d5..139d4dd1cab8 100644
--- a/include/uapi/linux/mpls.h
+++ b/include/uapi/linux/mpls.h
@@ -32,13 +32,13 @@ struct mpls_label {
 #define MPLS_LS_TTL_SHIFT       0
 
 /* Reserved labels */
-#define MPLS_LABEL_IPV4_EXPLICIT_NULL	0 /* RFC3032 */
-#define MPLS_LABEL_ROUTER_ALERT		1 /* RFC3032 */
-#define MPLS_LABEL_IPV6_EXPLICIT_NULL	2 /* RFC3032 */
-#define MPLS_LABEL_IMPLICIT_NULL	3 /* RFC3032 */
-#define MPLS_LABEL_ENTROPY_INDICATOR	7 /* RFC6790 */
+#define MPLS_LABEL_IPV4NULL		0 /* RFC3032 */
+#define MPLS_LABEL_RTALERT		1 /* RFC3032 */
+#define MPLS_LABEL_IPV6NULL		2 /* RFC3032 */
+#define MPLS_LABEL_IMPLNULL		3 /* RFC3032 */
+#define MPLS_LABEL_ENTROPY		7 /* RFC6790 */
 #define MPLS_LABEL_GAL			13 /* RFC5586 */
-#define MPLS_LABEL_OAM_ALERT		14 /* RFC3429 */
+#define MPLS_LABEL_OAMALERT		14 /* RFC3429 */
 #define MPLS_LABEL_EXTENSION		15 /* RFC7274 */
 
 #endif /* _UAPI_MPLS_H */
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index b6eb7615960a..7b3f732269e4 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -647,7 +647,7 @@ int nla_get_labels(const struct nlattr *nla,
 			return -EINVAL;
 
 		switch (dec.label) {
-		case MPLS_LABEL_IMPLICIT_NULL:
+		case MPLS_LABEL_IMPLNULL:
 			/* RFC3032: This is a label that an LSR may
 			 * assign and distribute, but which never
 			 * actually appears in the encapsulation.
@@ -935,7 +935,7 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 	}
 
 	/* In case the predefined labels need to be populated */
-	if (limit > MPLS_LABEL_IPV4_EXPLICIT_NULL) {
+	if (limit > MPLS_LABEL_IPV4NULL) {
 		struct net_device *lo = net->loopback_dev;
 		rt0 = mpls_rt_alloc(lo->addr_len);
 		if (!rt0)
@@ -945,7 +945,7 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 		rt0->rt_via_table = NEIGH_LINK_TABLE;
 		memcpy(rt0->rt_via, lo->dev_addr, lo->addr_len);
 	}
-	if (limit > MPLS_LABEL_IPV6_EXPLICIT_NULL) {
+	if (limit > MPLS_LABEL_IPV6NULL) {
 		struct net_device *lo = net->loopback_dev;
 		rt2 = mpls_rt_alloc(lo->addr_len);
 		if (!rt2)
@@ -973,15 +973,15 @@ static int resize_platform_label_table(struct net *net, size_t limit)
 	memcpy(labels, old, cp_size);
 
 	/* If needed set the predefined labels */
-	if ((old_limit <= MPLS_LABEL_IPV6_EXPLICIT_NULL) &&
-	    (limit > MPLS_LABEL_IPV6_EXPLICIT_NULL)) {
-		RCU_INIT_POINTER(labels[MPLS_LABEL_IPV6_EXPLICIT_NULL], rt2);
+	if ((old_limit <= MPLS_LABEL_IPV6NULL) &&
+	    (limit > MPLS_LABEL_IPV6NULL)) {
+		RCU_INIT_POINTER(labels[MPLS_LABEL_IPV6NULL], rt2);
 		rt2 = NULL;
 	}
 
-	if ((old_limit <= MPLS_LABEL_IPV4_EXPLICIT_NULL) &&
-	    (limit > MPLS_LABEL_IPV4_EXPLICIT_NULL)) {
-		RCU_INIT_POINTER(labels[MPLS_LABEL_IPV4_EXPLICIT_NULL], rt0);
+	if ((old_limit <= MPLS_LABEL_IPV4NULL) &&
+	    (limit > MPLS_LABEL_IPV4NULL)) {
+		RCU_INIT_POINTER(labels[MPLS_LABEL_IPV4NULL], rt0);
 		rt0 = NULL;
 	}
 
-- 
cgit v1.2.3


From eea39946a1f36e8a5a47c86e7ecfca6076868505 Mon Sep 17 00:00:00 2001
From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Wed, 13 May 2015 21:17:41 -0700
Subject: rename RTNH_F_EXTERNAL to RTNH_F_OFFLOAD

RTNH_F_EXTERNAL today is printed as "offload" in iproute2 output.

This patch renames the flag to be consistent with what the user sees.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/rtnetlink.h | 2 +-
 net/ipv4/fib_trie.c            | 2 +-
 net/switchdev/switchdev.c      | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'include/uapi')

diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index 974db03f7b1a..17fb02f488da 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -337,7 +337,7 @@ struct rtnexthop {
 #define RTNH_F_DEAD		1	/* Nexthop is dead (used by multipath)	*/
 #define RTNH_F_PERVASIVE	2	/* Do recursive gateway lookup	*/
 #define RTNH_F_ONLINK		4	/* Gateway is forced on link	*/
-#define RTNH_F_EXTERNAL		8	/* Route installed externally	*/
+#define RTNH_F_OFFLOAD		8	/* offloaded route */
 
 /* Macros to handle hexthops */
 
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index e13fcc602da2..64c2076ced54 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1764,7 +1764,7 @@ void fib_table_flush_external(struct fib_table *tb)
 			/* record local slen */
 			slen = fa->fa_slen;
 
-			if (!fi || !(fi->fib_flags & RTNH_F_EXTERNAL))
+			if (!fi || !(fi->fib_flags & RTNH_F_OFFLOAD))
 				continue;
 
 			netdev_switch_fib_ipv4_del(n->key,
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 46568b85c333..055453d48668 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -338,7 +338,7 @@ int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
 					      fi, tos, type, nlflags,
 					      tb_id);
 		if (!err)
-			fi->fib_flags |= RTNH_F_EXTERNAL;
+			fi->fib_flags |= RTNH_F_OFFLOAD;
 	}
 
 	return err;
@@ -364,7 +364,7 @@ int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
 	const struct swdev_ops *ops;
 	int err = 0;
 
-	if (!(fi->fib_flags & RTNH_F_EXTERNAL))
+	if (!(fi->fib_flags & RTNH_F_OFFLOAD))
 		return 0;
 
 	dev = netdev_switch_get_dev_by_nhs(fi);
@@ -376,7 +376,7 @@ int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
 		err = ops->swdev_fib_ipv4_del(dev, htonl(dst), dst_len,
 					      fi, tos, type, tb_id);
 		if (!err)
-			fi->fib_flags &= ~RTNH_F_EXTERNAL;
+			fi->fib_flags &= ~RTNH_F_OFFLOAD;
 	}
 
 	return err;
-- 
cgit v1.2.3


From b3cad287d13b5f6695c6b4aab72969cd64bf0171 Mon Sep 17 00:00:00 2001
From: Jesper Dangaard Brouer <brouer@redhat.com>
Date: Thu, 7 May 2015 14:54:16 +0200
Subject: conntrack: RFC5961 challenge ACK confuse conntrack LAST-ACK
 transition

In compliance with RFC5961, the network stack send challenge ACK in
response to spurious SYN packets, since commit 0c228e833c88 ("tcp:
Restore RFC5961-compliant behavior for SYN packets").

This pose a problem for netfilter conntrack in state LAST_ACK, because
this challenge ACK is (falsely) seen as ACKing last FIN, causing a
false state transition (into TIME_WAIT).

The challenge ACK is hard to distinguish from real last ACK.  Thus,
solution introduce a flag that tracks the potential for seeing a
challenge ACK, in case a SYN packet is let through and current state
is LAST_ACK.

When conntrack transition LAST_ACK to TIME_WAIT happens, this flag is
used for determining if we are expecting a challenge ACK.

Scapy based reproducer script avail here:
 https://github.com/netoptimizer/network-testing/blob/master/scapy/tcp_hacks_3WHS_LAST_ACK.py

Fixes: 0c228e833c88 ("tcp: Restore RFC5961-compliant behavior for SYN packets")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/uapi/linux/netfilter/nf_conntrack_tcp.h |  3 +++
 net/netfilter/nf_conntrack_proto_tcp.c          | 35 ++++++++++++++++++++++---
 2 files changed, 35 insertions(+), 3 deletions(-)

(limited to 'include/uapi')

diff --git a/include/uapi/linux/netfilter/nf_conntrack_tcp.h b/include/uapi/linux/netfilter/nf_conntrack_tcp.h
index 9993a421201c..ef9f80f0f529 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_tcp.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_tcp.h
@@ -42,6 +42,9 @@ enum tcp_conntrack {
 /* The field td_maxack has been set */
 #define IP_CT_TCP_FLAG_MAXACK_SET		0x20
 
+/* Marks possibility for expected RFC5961 challenge ACK */
+#define IP_CT_EXP_CHALLENGE_ACK 		0x40
+
 struct nf_ct_tcp_flags {
 	__u8 flags;
 	__u8 mask;
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 5caa0c41bf26..70383de72054 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -202,7 +202,7 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sES -> sES	:-)
  *	sFW -> sCW	Normal close request answered by ACK.
  *	sCW -> sCW
- *	sLA -> sTW	Last ACK detected.
+ *	sLA -> sTW	Last ACK detected (RFC5961 challenged)
  *	sTW -> sTW	Retransmitted last ACK. Remain in the same state.
  *	sCL -> sCL
  */
@@ -261,7 +261,7 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
  *	sES -> sES	:-)
  *	sFW -> sCW	Normal close request answered by ACK.
  *	sCW -> sCW
- *	sLA -> sTW	Last ACK detected.
+ *	sLA -> sTW	Last ACK detected (RFC5961 challenged)
  *	sTW -> sTW	Retransmitted last ACK.
  *	sCL -> sCL
  */
@@ -906,6 +906,7 @@ static int tcp_packet(struct nf_conn *ct,
 					1 : ct->proto.tcp.last_win;
 			ct->proto.tcp.seen[ct->proto.tcp.last_dir].td_scale =
 				ct->proto.tcp.last_wscale;
+			ct->proto.tcp.last_flags &= ~IP_CT_EXP_CHALLENGE_ACK;
 			ct->proto.tcp.seen[ct->proto.tcp.last_dir].flags =
 				ct->proto.tcp.last_flags;
 			memset(&ct->proto.tcp.seen[dir], 0,
@@ -923,7 +924,9 @@ static int tcp_packet(struct nf_conn *ct,
 		 * may be in sync but we are not. In that case, we annotate
 		 * the TCP options and let the packet go through. If it is a
 		 * valid SYN packet, the server will reply with a SYN/ACK, and
-		 * then we'll get in sync. Otherwise, the server ignores it. */
+		 * then we'll get in sync. Otherwise, the server potentially
+		 * responds with a challenge ACK if implementing RFC5961.
+		 */
 		if (index == TCP_SYN_SET && dir == IP_CT_DIR_ORIGINAL) {
 			struct ip_ct_tcp_state seen = {};
 
@@ -939,6 +942,13 @@ static int tcp_packet(struct nf_conn *ct,
 				ct->proto.tcp.last_flags |=
 					IP_CT_TCP_FLAG_SACK_PERM;
 			}
+			/* Mark the potential for RFC5961 challenge ACK,
+			 * this pose a special problem for LAST_ACK state
+			 * as ACK is intrepretated as ACKing last FIN.
+			 */
+			if (old_state == TCP_CONNTRACK_LAST_ACK)
+				ct->proto.tcp.last_flags |=
+					IP_CT_EXP_CHALLENGE_ACK;
 		}
 		spin_unlock_bh(&ct->lock);
 		if (LOG_INVALID(net, IPPROTO_TCP))
@@ -970,6 +980,25 @@ static int tcp_packet(struct nf_conn *ct,
 			nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL,
 				  "nf_ct_tcp: invalid state ");
 		return -NF_ACCEPT;
+	case TCP_CONNTRACK_TIME_WAIT:
+		/* RFC5961 compliance cause stack to send "challenge-ACK"
+		 * e.g. in response to spurious SYNs.  Conntrack MUST
+		 * not believe this ACK is acking last FIN.
+		 */
+		if (old_state == TCP_CONNTRACK_LAST_ACK &&
+		    index == TCP_ACK_SET &&
+		    ct->proto.tcp.last_dir != dir &&
+		    ct->proto.tcp.last_index == TCP_SYN_SET &&
+		    (ct->proto.tcp.last_flags & IP_CT_EXP_CHALLENGE_ACK)) {
+			/* Detected RFC5961 challenge ACK */
+			ct->proto.tcp.last_flags &= ~IP_CT_EXP_CHALLENGE_ACK;
+			spin_unlock_bh(&ct->lock);
+			if (LOG_INVALID(net, IPPROTO_TCP))
+				nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL,
+				      "nf_ct_tcp: challenge-ACK ignored ");
+			return NF_ACCEPT; /* Don't change state */
+		}
+		break;
 	case TCP_CONNTRACK_CLOSE:
 		if (index == TCP_RST_SET
 		    && (ct->proto.tcp.seen[!dir].flags & IP_CT_TCP_FLAG_MAXACK_SET)
-- 
cgit v1.2.3


From c147c0e17b532a0d35ab92c86bbce0dfe1c1aaf4 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 29 May 2015 19:06:13 +0100
Subject: ASoC: topology: Add topology UAPI header

 The ASoC topology UAPI header defines the structures
 required to define any DSP firmware audio topology and control objects from
 userspace.

The following objects are supported :-
 o kcontrols including TLV controls.
 o DAPM widgets and graph elements
 o Vendor bespoke objects.
 o Coefficient data
 o FE PCM capabilities and config.
 o BE link capabilities and config.
 o Codec <-> codec link capabilities and config.
 o Topology object manifest.

The file format is simple and divided into blocks for each object type and
each block has a header that defines it's size and type. Blocks can be in
any order of type and can either all be in a single file or spread across
more than one file. Blocks also have a group identifier ID so that they can
be loaded and unloaded by ID.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/soc-dapm.h  |   1 +
 include/uapi/sound/asoc.h | 388 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 389 insertions(+)
 create mode 100644 include/uapi/sound/asoc.h

(limited to 'include/uapi')

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index b9170e2bc5ab..0dd6070e73cb 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -15,6 +15,7 @@
 
 #include <linux/types.h>
 #include <sound/control.h>
+#include <sound/asoc.h>
 
 struct device;
 
diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
new file mode 100644
index 000000000000..12215205ab8d
--- /dev/null
+++ b/include/uapi/sound/asoc.h
@@ -0,0 +1,388 @@
+/*
+ * uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
+ *
+ * Copyright (C) 2012 Texas Instruments Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
+ * algorithms, equalisers, DAIs, widgets etc.
+*/
+
+#ifndef __LINUX_UAPI_SND_ASOC_H
+#define __LINUX_UAPI_SND_ASOC_H
+
+#include <linux/types.h>
+#include <sound/asound.h>
+
+/*
+ * Maximum number of channels topology kcontrol can represent.
+ */
+#define SND_SOC_TPLG_MAX_CHAN		8
+
+/*
+ * Maximum number of PCM formats capability
+ */
+#define SND_SOC_TPLG_MAX_FORMATS	16
+
+/*
+ * Maximum number of PCM stream configs
+ */
+#define SND_SOC_TPLG_STREAM_CONFIG_MAX  8
+
+/* individual kcontrol info types - can be mixed with other types */
+#define SND_SOC_TPLG_CTL_VOLSW		1
+#define SND_SOC_TPLG_CTL_VOLSW_SX	2
+#define SND_SOC_TPLG_CTL_VOLSW_XR_SX	3
+#define SND_SOC_TPLG_CTL_ENUM		4
+#define SND_SOC_TPLG_CTL_BYTES		5
+#define SND_SOC_TPLG_CTL_ENUM_VALUE	6
+#define SND_SOC_TPLG_CTL_RANGE		7
+#define SND_SOC_TPLG_CTL_STROBE		8
+
+
+/* individual widget kcontrol info types - can be mixed with other types */
+#define SND_SOC_TPLG_DAPM_CTL_VOLSW		64
+#define SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE	65
+#define SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT		66
+#define SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE	67
+#define SND_SOC_TPLG_DAPM_CTL_PIN		68
+
+/* DAPM widget types - add new items to the end */
+#define SND_SOC_TPLG_DAPM_INPUT		0
+#define SND_SOC_TPLG_DAPM_OUTPUT	1
+#define SND_SOC_TPLG_DAPM_MUX		2
+#define SND_SOC_TPLG_DAPM_MIXER		3
+#define SND_SOC_TPLG_DAPM_PGA		4
+#define SND_SOC_TPLG_DAPM_OUT_DRV	5
+#define SND_SOC_TPLG_DAPM_ADC		6
+#define SND_SOC_TPLG_DAPM_DAC		7
+#define SND_SOC_TPLG_DAPM_SWITCH	8
+#define SND_SOC_TPLG_DAPM_PRE		9
+#define SND_SOC_TPLG_DAPM_POST		10
+#define SND_SOC_TPLG_DAPM_AIF_IN	11
+#define SND_SOC_TPLG_DAPM_AIF_OUT	12
+#define SND_SOC_TPLG_DAPM_DAI_IN	13
+#define SND_SOC_TPLG_DAPM_DAI_OUT	14
+#define SND_SOC_TPLG_DAPM_DAI_LINK	15
+#define SND_SOC_TPLG_DAPM_LAST		SND_SOC_TPLG_DAPM_DAI_LINK
+
+/* Header magic number and string sizes */
+#define SND_SOC_TPLG_MAGIC		0x41536F43 /* ASoC */
+
+/* string sizes */
+#define SND_SOC_TPLG_NUM_TEXTS		16
+
+/* ABI version */
+#define SND_SOC_TPLG_ABI_VERSION	0x2
+
+/* Max size of TLV data */
+#define SND_SOC_TPLG_TLV_SIZE		32
+
+/*
+ * File and Block header data types.
+ * Add new generic and vendor types to end of list.
+ * Generic types are handled by the core whilst vendors types are passed
+ * to the component drivers for handling.
+ */
+#define SND_SOC_TPLG_TYPE_MIXER		1
+#define SND_SOC_TPLG_TYPE_BYTES		2
+#define SND_SOC_TPLG_TYPE_ENUM		3
+#define SND_SOC_TPLG_TYPE_DAPM_GRAPH	4
+#define SND_SOC_TPLG_TYPE_DAPM_WIDGET	5
+#define SND_SOC_TPLG_TYPE_DAI_LINK	6
+#define SND_SOC_TPLG_TYPE_PCM		7
+#define SND_SOC_TPLG_TYPE_MANIFEST	8
+#define SND_SOC_TPLG_TYPE_CODEC_LINK	9
+#define SND_SOC_TPLG_TYPE_MAX	SND_SOC_TPLG_TYPE_CODEC_LINK
+
+/* vendor block IDs - please add new vendor types to end */
+#define SND_SOC_TPLG_TYPE_VENDOR_FW	1000
+#define SND_SOC_TPLG_TYPE_VENDOR_CONFIG	1001
+#define SND_SOC_TPLG_TYPE_VENDOR_COEFF	1002
+#define SND_SOC_TPLG_TYPEVENDOR_CODEC	1003
+
+#define SND_SOC_TPLG_STREAM_PLAYBACK	0
+#define SND_SOC_TPLG_STREAM_CAPTURE	1
+
+/*
+ * Block Header.
+ * This header preceeds all object and object arrays below.
+ */
+struct snd_soc_tplg_hdr {
+	__le32 magic;		/* magic number */
+	__le32 abi;		/* ABI version */
+	__le32 version;		/* optional vendor specific version details */
+	__le32 type;		/* SND_SOC_TPLG_TYPE_ */
+	__le32 size;		/* size of this structure */
+	__le32 vendor_type;	/* optional vendor specific type info */
+	__le32 payload_size;	/* data bytes, excluding this header */
+	__le32 index;		/* identifier for block */
+	__le32 count;		/* number of elements in block */
+} __attribute__((packed));
+
+/*
+ * Private data.
+ * All topology objects may have private data that can be used by the driver or
+ * firmware. Core will ignore this data.
+ */
+struct snd_soc_tplg_private {
+	__le32 size;	/* in bytes of private data */
+	char data[0];
+} __attribute__((packed));
+
+/*
+ * Kcontrol TLV data.
+ */
+struct snd_soc_tplg_ctl_tlv {
+	__le32 size;	/* in bytes aligned to 4 */
+	__le32 numid;	/* control element numeric identification */
+	__le32 count;	/* number of elem in data array */
+	__le32 data[SND_SOC_TPLG_TLV_SIZE];
+} __attribute__((packed));
+
+/*
+ * Kcontrol channel data
+ */
+struct snd_soc_tplg_channel {
+	__le32 size;	/* in bytes of this structure */
+	__le32 reg;
+	__le32 shift;
+	__le32 id;	/* ID maps to Left, Right, LFE etc */
+} __attribute__((packed));
+
+/*
+ * Kcontrol Operations IDs
+ */
+struct snd_soc_tplg_kcontrol_ops_id {
+	__le32 get;
+	__le32 put;
+	__le32 info;
+} __attribute__((packed));
+
+/*
+ * kcontrol header
+ */
+struct snd_soc_tplg_ctl_hdr {
+	__le32 size;	/* in bytes of this structure */
+	__le32 type;
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	__le32 access;
+	struct snd_soc_tplg_kcontrol_ops_id ops;
+	__le32 tlv_size;	/* non zero means control has TLV data */
+} __attribute__((packed));
+
+/*
+ * Stream Capabilities
+ */
+struct snd_soc_tplg_stream_caps {
+	__le32 size;		/* in bytes of this structure */
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	__le64 formats[SND_SOC_TPLG_MAX_FORMATS];	/* supported formats SNDRV_PCM_FMTBIT_* */
+	__le32 rates;		/* supported rates SNDRV_PCM_RATE_* */
+	__le32 rate_min;	/* min rate */
+	__le32 rate_max;	/* max rate */
+	__le32 channels_min;	/* min channels */
+	__le32 channels_max;	/* max channels */
+	__le32 periods_min;	/* min number of periods */
+	__le32 periods_max;	/* max number of periods */
+	__le32 period_size_min;	/* min period size bytes */
+	__le32 period_size_max;	/* max period size bytes */
+	__le32 buffer_size_min;	/* min buffer size bytes */
+	__le32 buffer_size_max;	/* max buffer size bytes */
+} __attribute__((packed));
+
+/*
+ * FE or BE Stream configuration supported by SW/FW
+ */
+struct snd_soc_tplg_stream {
+	__le32 size;		/* in bytes of this structure */
+	__le64 format;		/* SNDRV_PCM_FMTBIT_* */
+	__le32 rate;		/* SNDRV_PCM_RATE_* */
+	__le32 period_bytes;	/* size of period in bytes */
+	__le32 buffer_bytes;	/* size of buffer in bytes */
+	__le32 channels;	/* channels */
+	__le32 tdm_slot;	/* optional BE bitmask of supported TDM slots */
+	__le32 dai_fmt;		/* SND_SOC_DAIFMT_  */
+} __attribute__((packed));
+
+/*
+ * Duplex stream configuration supported by SW/FW.
+ */
+struct snd_soc_tplg_stream_config {
+	__le32 size;		/* in bytes of this structure */
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	struct snd_soc_tplg_stream playback;
+	struct snd_soc_tplg_stream capture;
+} __attribute__((packed));
+
+/*
+ * Manifest. List totals for each payload type. Not used in parsing, but will
+ * be passed to the component driver before any other objects in order for any
+ * global componnent resource allocations.
+ *
+ * File block representation for manifest :-
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_hdr           |  1 |
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_manifest      |  1 |
+ * +-----------------------------------+----+
+ */
+struct snd_soc_tplg_manifest {
+	__le32 size;		/* in bytes of this structure */
+	__le32 control_elems;	/* number of control elements */
+	__le32 widget_elems;	/* number of widget elements */
+	__le32 graph_elems;	/* number of graph elements */
+	__le32 dai_elems;	/* number of DAI elements */
+	__le32 dai_link_elems;	/* number of DAI link elements */
+} __attribute__((packed));
+
+/*
+ * Mixer kcontrol.
+ *
+ * File block representation for mixer kcontrol :-
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_hdr           |  1 |
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_mixer_control |  N |
+ * +-----------------------------------+----+
+ */
+struct snd_soc_tplg_mixer_control {
+	struct snd_soc_tplg_ctl_hdr hdr;
+	__le32 size;	/* in bytes of this structure */
+	__le32 min;
+	__le32 max;
+	__le32 platform_max;
+	__le32 invert;
+	__le32 num_channels;
+	struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
+	struct snd_soc_tplg_ctl_tlv tlv;
+	struct snd_soc_tplg_private priv;
+} __attribute__((packed));
+
+/*
+ * Enumerated kcontrol
+ *
+ * File block representation for enum kcontrol :-
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_hdr           |  1 |
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_enum_control  |  N |
+ * +-----------------------------------+----+
+ */
+struct snd_soc_tplg_enum_control {
+	struct snd_soc_tplg_ctl_hdr hdr;
+	__le32 size;	/* in bytes of this structure */
+	__le32 num_channels;
+	struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
+	__le32 items;
+	__le32 mask;
+	__le32 count;
+	char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	__le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
+	struct snd_soc_tplg_private priv;
+} __attribute__((packed));
+
+/*
+ * Bytes kcontrol
+ *
+ * File block representation for bytes kcontrol :-
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_hdr           |  1 |
+ * +-----------------------------------+----+
+ * | struct snd_soc_tplg_bytes_control |  N |
+ * +-----------------------------------+----+
+ */
+struct snd_soc_tplg_bytes_control {
+	struct snd_soc_tplg_ctl_hdr hdr;
+	__le32 size;	/* in bytes of this structure */
+	__le32 max;
+	__le32 mask;
+	__le32 base;
+	__le32 num_regs;
+	struct snd_soc_tplg_private priv;
+} __attribute__((packed));
+
+/*
+ * DAPM Graph Element
+ *
+ * File block representation for DAPM graph elements :-
+ * +-------------------------------------+----+
+ * | struct snd_soc_tplg_hdr             |  1 |
+ * +-------------------------------------+----+
+ * | struct snd_soc_tplg_dapm_graph_elem |  N |
+ * +-------------------------------------+----+
+ */
+struct snd_soc_tplg_dapm_graph_elem {
+	char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+} __attribute__((packed));
+
+/*
+ * DAPM Widget.
+ *
+ * File block representation for DAPM widget :-
+ * +-------------------------------------+-----+
+ * | struct snd_soc_tplg_hdr             |  1  |
+ * +-------------------------------------+-----+
+ * | struct snd_soc_tplg_dapm_widget     |  N  |
+ * +-------------------------------------+-----+
+ * |   struct snd_soc_tplg_enum_control  | 0|1 |
+ * |   struct snd_soc_tplg_mixer_control | 0|N |
+ * +-------------------------------------+-----+
+ *
+ * Optional enum or mixer control can be appended to the end of each widget
+ * in the block.
+ */
+struct snd_soc_tplg_dapm_widget {
+	__le32 size;		/* in bytes of this structure */
+	__le32 id;		/* SND_SOC_DAPM_CTL */
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+
+	__le32 reg;		/* negative reg = no direct dapm */
+	__le32 shift;		/* bits to shift */
+	__le32 mask;		/* non-shifted mask */
+	__u32 invert;		/* invert the power bit */
+	__u32 ignore_suspend;	/* kept enabled over suspend */
+	__u16 event_flags;
+	__u16 event_type;
+	__u16 num_kcontrols;
+	struct snd_soc_tplg_private priv;
+	/*
+	 * kcontrols that relate to this widget
+	 * follow here after widget private data
+	 */
+} __attribute__((packed));
+
+struct snd_soc_tplg_pcm_cfg_caps {
+	struct snd_soc_tplg_stream_caps caps;
+	struct snd_soc_tplg_stream_config configs[SND_SOC_TPLG_STREAM_CONFIG_MAX];
+	__le32 num_configs;	/* number of configs */
+} __attribute__((packed));
+
+/*
+ * Describes SW/FW specific features of PCM or DAI link.
+ *
+ * File block representation for PCM/DAI-Link :-
+ * +-----------------------------------+-----+
+ * | struct snd_soc_tplg_hdr           |  1  |
+ * +-----------------------------------+-----+
+ * | struct snd_soc_tplg_dapm_pcm_dai  |  N  |
+ * +-----------------------------------+-----+
+ */
+struct snd_soc_tplg_pcm_dai {
+	__le32 size;		/* in bytes of this structure */
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+	__le32 id;			/* unique ID - used to match */
+	__le32 playback;		/* supports playback mode */
+	__le32 capture;			/* supports capture mode */
+	__le32 compress;		/* 1 = compressed; 0 = PCM */
+	struct snd_soc_tplg_pcm_cfg_caps capconf[2];	/* capabilities and configs */
+} __attribute__((packed));
+
+#endif
-- 
cgit v1.2.3


From 932ae8809469770a07ce19d6967d2ce303befa08 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 29 May 2015 19:06:15 +0100
Subject: ALSA: topology: Export ID types for TLV controls.

Make sure userspace can define TLV controls for topology using the correct
type numbers and channel mappings.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/sound/tlv.h      | 15 +--------------
 include/uapi/sound/tlv.h | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 14 deletions(-)
 create mode 100644 include/uapi/sound/tlv.h

(limited to 'include/uapi')

diff --git a/include/sound/tlv.h b/include/sound/tlv.h
index e11e179420a1..df97d1966468 100644
--- a/include/sound/tlv.h
+++ b/include/sound/tlv.h
@@ -31,12 +31,7 @@
  *                       ~(sizeof(unsigned int) - 1)) ....
  */
 
-#define SNDRV_CTL_TLVT_CONTAINER 0	/* one level down - group of TLVs */
-#define SNDRV_CTL_TLVT_DB_SCALE	1       /* dB scale */
-#define SNDRV_CTL_TLVT_DB_LINEAR 2	/* linear volume */
-#define SNDRV_CTL_TLVT_DB_RANGE 3	/* dB range container */
-#define SNDRV_CTL_TLVT_DB_MINMAX 4	/* dB scale with min/max */
-#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5	/* dB scale with min/max with mute */
+#include <uapi/sound/tlv.h>
 
 #define TLV_ITEM(type, ...) \
 	(type), TLV_LENGTH(__VA_ARGS__), __VA_ARGS__
@@ -90,12 +85,4 @@
 
 #define TLV_DB_GAIN_MUTE	-9999999
 
-/*
- * channel-mapping TLV items
- *  TLV length must match with num_channels
- */
-#define SNDRV_CTL_TLVT_CHMAP_FIXED	0x101	/* fixed channel position */
-#define SNDRV_CTL_TLVT_CHMAP_VAR	0x102	/* channels freely swappable */
-#define SNDRV_CTL_TLVT_CHMAP_PAIRED	0x103	/* pair-wise swappable */
-
 #endif /* __SOUND_TLV_H */
diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h
new file mode 100644
index 000000000000..ffc4f203146c
--- /dev/null
+++ b/include/uapi/sound/tlv.h
@@ -0,0 +1,31 @@
+/*
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#ifndef __UAPI_SOUND_TLV_H
+#define __UAPI_SOUND_TLV_H
+
+#define SNDRV_CTL_TLVT_CONTAINER 0	/* one level down - group of TLVs */
+#define SNDRV_CTL_TLVT_DB_SCALE	1       /* dB scale */
+#define SNDRV_CTL_TLVT_DB_LINEAR 2	/* linear volume */
+#define SNDRV_CTL_TLVT_DB_RANGE 3	/* dB range container */
+#define SNDRV_CTL_TLVT_DB_MINMAX 4	/* dB scale with min/max */
+#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5	/* dB scale with min/max with mute */
+
+/*
+ * channel-mapping TLV items
+ *  TLV length must match with num_channels
+ */
+#define SNDRV_CTL_TLVT_CHMAP_FIXED	0x101	/* fixed channel position */
+#define SNDRV_CTL_TLVT_CHMAP_VAR	0x102	/* channels freely swappable */
+#define SNDRV_CTL_TLVT_CHMAP_PAIRED	0x103	/* pair-wise swappable */
+
+#endif
-- 
cgit v1.2.3