From 0df48c26d8418c5c9fba63fac15b660d70ca2f1c Mon Sep 17 00:00:00 2001 From: Eric Dumazet 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 Acked-by: Yuchung Cheng Cc: Matt Mathis Cc: Eric Salo Cc: Martin Lau Cc: Chris Rapier Signed-off-by: David S. Miller --- include/linux/tcp.h | 4 ++++ include/net/tcp.h | 2 +- include/uapi/linux/tcp.h | 1 + 3 files changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 0caa3a2d4106..0f73b43171da 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -150,6 +150,10 @@ struct tcp_sock { u32 rcv_wup; /* rcv_nxt on last window update sent */ u32 snd_nxt; /* Next sequence we send */ + u64 bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked + * sum(delta(snd_una)), or how many bytes + * were acked. + */ u32 snd_una; /* First byte we want an ack for */ u32 snd_sml; /* Last byte of the most recently transmitted small packet */ u32 rcv_tstamp; /* timestamp of last received ACK (for keepalives) */ diff --git a/include/net/tcp.h b/include/net/tcp.h index 051dc5c2802d..dd7b4ea6a10c 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -576,7 +576,7 @@ static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize) } /* tcp.c */ -void tcp_get_info(const struct sock *, struct tcp_info *); +void tcp_get_info(struct sock *, struct tcp_info *); /* Read 'sendfile()'-style from a TCP socket */ typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *, 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 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 Cc: Yuchung Cheng Cc: Matt Mathis Cc: Eric Salo Cc: Martin Lau Cc: Chris Rapier Acked-by: Yuchung Cheng Signed-off-by: David S. Miller --- 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') 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 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 Cc: Yuchung Cheng Cc: Neal Cardwell Acked-by: Neal Cardwell Acked-by: Daniel Borkmann Acked-by: Yuchung Cheng Signed-off-by: David S. Miller --- 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') 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 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 Cc: Yuchung Cheng Cc: Neal Cardwell Acked-by: Neal Cardwell Acked-by: Daniel Borkmann Acked-by: Yuchung Cheng Signed-off-by: David S. Miller --- include/uapi/linux/tcp.h | 1 + net/ipv4/tcp.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+) (limited to 'include') 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 #include #include +#include #include #include #include @@ -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 42fb23e2f57accbed69804e6d72ea3a88b8a84c4 Mon Sep 17 00:00:00 2001 From: Varka Bhadram Date: Thu, 30 Apr 2015 17:44:52 +0200 Subject: mac802154: add description to mac802154 APIs This patch adds the proper description to the mac802154 core APIs. Signed-off-by: Varka Bhadram Acked-by: Alexander Aring Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- include/net/mac802154.h | 94 +++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 92 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/mac802154.h b/include/net/mac802154.h index e18e7fd43f47..7df28a4c23f9 100644 --- a/include/net/mac802154.h +++ b/include/net/mac802154.h @@ -247,19 +247,109 @@ static inline void ieee802154_le64_to_be64(void *be64_dst, const void *le64_src) __put_unaligned_memmove64(swab64p(le64_src), be64_dst); } -/* Basic interface to register ieee802154 device */ +/** + * ieee802154_alloc_hw - Allocate a new hardware device + * + * This must be called once for each hardware device. The returned pointer + * must be used to refer to this device when calling other functions. + * mac802154 allocates a private data area for the driver pointed to by + * @priv in &struct ieee802154_hw, the size of this area is given as + * @priv_data_len. + * + * @priv_data_len: length of private data + * @ops: callbacks for this device + * + * Return: A pointer to the new hardware device, or %NULL on error. + */ struct ieee802154_hw * ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops); + +/** + * ieee802154_free_hw - free hardware descriptor + * + * This function frees everything that was allocated, including the + * private data for the driver. You must call ieee802154_unregister_hw() + * before calling this function. + * + * @hw: the hardware to free + */ void ieee802154_free_hw(struct ieee802154_hw *hw); + +/** + * ieee802154_register_hw - Register hardware device + * + * You must call this function before any other functions in + * mac802154. Note that before a hardware can be registered, you + * need to fill the contained wpan_phy's information. + * + * @hw: the device to register as returned by ieee802154_alloc_hw() + * + * Return: 0 on success. An error code otherwise. + */ int ieee802154_register_hw(struct ieee802154_hw *hw); + +/** + * ieee802154_unregister_hw - Unregister a hardware device + * + * This function instructs mac802154 to free allocated resources + * and unregister netdevices from the networking subsystem. + * + * @hw: the hardware to unregister + */ void ieee802154_unregister_hw(struct ieee802154_hw *hw); +/** + * ieee802154_rx - receive frame + * + * Use this function to hand received frames to mac802154. The receive + * buffer in @skb must start with an IEEE 802.15.4 header. In case of a + * paged @skb is used, the driver is recommended to put the ieee802154 + * header of the frame on the linear part of the @skb to avoid memory + * allocation and/or memcpy by the stack. + * + * This function may not be called in IRQ context. Calls to this function + * for a single hardware must be synchronized against each other. + * + * @hw: the hardware this frame came in on + * @skb: the buffer to receive, owned by mac802154 after this call + */ void ieee802154_rx(struct ieee802154_hw *hw, struct sk_buff *skb); + +/** + * ieee802154_rx_irqsafe - receive frame + * + * Like ieee802154_rx() but can be called in IRQ context + * (internally defers to a tasklet.) + * + * @hw: the hardware this frame came in on + * @skb: the buffer to receive, owned by mac802154 after this call + * @lqi: link quality indicator + */ void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb, u8 lqi); - +/** + * ieee802154_wake_queue - wake ieee802154 queue + * @hw: pointer as obtained from ieee802154_alloc_hw(). + * + * Drivers should use this function instead of netif_wake_queue. + */ void ieee802154_wake_queue(struct ieee802154_hw *hw); + +/** + * ieee802154_stop_queue - stop ieee802154 queue + * @hw: pointer as obtained from ieee802154_alloc_hw(). + * + * Drivers should use this function instead of netif_stop_queue. + */ void ieee802154_stop_queue(struct ieee802154_hw *hw); + +/** + * ieee802154_xmit_complete - frame transmission complete + * + * @hw: pointer as obtained from ieee802154_alloc_hw(). + * @skb: buffer for transmission + * @ifs_handling: indicate interframe space handling + */ void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb, bool ifs_handling); -- cgit v1.2.3 From 5b4a10390460cccf17a9fac739e153d68cf25ef5 Mon Sep 17 00:00:00 2001 From: Varka Bhadram Date: Thu, 30 Apr 2015 17:44:57 +0200 Subject: cfg802154: pass name_assign_type to rdev_add_virtual_intf() This code is based on commit 6bab2e19c5ffd ("cfg80211: pass name_assign_type to rdev_add_virtual_intf()") This will expose in sysfs whether the ifname of a IEEE-802.15.4 device is set by userspace or generated by the kernel. We are using two types of name_assign_types o NET_NAME_ENUM: Default interface name provided by kernel o NET_NAME_USER: Interface name provided by user. Signed-off-by: Varka Bhadram Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- include/net/cfg802154.h | 2 ++ net/ieee802154/nl-phy.c | 5 ++++- net/ieee802154/nl802154.c | 2 +- net/ieee802154/rdev-ops.h | 10 +++++++--- net/mac802154/cfg.c | 9 ++++++--- net/mac802154/ieee802154_i.h | 3 ++- net/mac802154/iface.c | 5 +++-- net/mac802154/main.c | 3 ++- 8 files changed, 27 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index eeda67652766..6ea16c84293b 100644 --- a/include/net/cfg802154.h +++ b/include/net/cfg802154.h @@ -30,11 +30,13 @@ struct wpan_phy_cca; struct cfg802154_ops { struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy, const char *name, + unsigned char name_assign_type, int type); void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy, struct net_device *dev); int (*add_virtual_intf)(struct wpan_phy *wpan_phy, const char *name, + unsigned char name_assign_type, enum nl802154_iftype type, __le64 extended_addr); int (*del_virtual_intf)(struct wpan_phy *wpan_phy, diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c index 1b9d25f6e898..346c6665d25e 100644 --- a/net/ieee802154/nl-phy.c +++ b/net/ieee802154/nl-phy.c @@ -175,6 +175,7 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info) int rc = -ENOBUFS; struct net_device *dev; int type = __IEEE802154_DEV_INVALID; + unsigned char name_assign_type; pr_debug("%s\n", __func__); @@ -190,8 +191,10 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info) if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0') return -EINVAL; /* phy name should be null-terminated */ + name_assign_type = NET_NAME_USER; } else { devname = "wpan%d"; + name_assign_type = NET_NAME_ENUM; } if (strlen(devname) >= IFNAMSIZ) @@ -221,7 +224,7 @@ int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info) } dev = rdev_add_virtual_intf_deprecated(wpan_phy_to_rdev(phy), devname, - type); + name_assign_type, type); if (IS_ERR(dev)) { rc = PTR_ERR(dev); goto nla_put_failure; diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index a4daf91b8d0a..f3c12f6a4a39 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -589,7 +589,7 @@ static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) return rdev_add_virtual_intf(rdev, nla_data(info->attrs[NL802154_ATTR_IFNAME]), - type, extended_addr); + NET_NAME_USER, type, extended_addr); } static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h index 624413ee095f..7b5a9dd94fe5 100644 --- a/net/ieee802154/rdev-ops.h +++ b/net/ieee802154/rdev-ops.h @@ -8,10 +8,12 @@ static inline struct net_device * rdev_add_virtual_intf_deprecated(struct cfg802154_registered_device *rdev, - const char *name, int type) + const char *name, + unsigned char name_assign_type, + int type) { return rdev->ops->add_virtual_intf_deprecated(&rdev->wpan_phy, name, - type); + name_assign_type, type); } static inline void @@ -23,13 +25,15 @@ rdev_del_virtual_intf_deprecated(struct cfg802154_registered_device *rdev, static inline int rdev_add_virtual_intf(struct cfg802154_registered_device *rdev, char *name, + unsigned char name_assign_type, enum nl802154_iftype type, __le64 extended_addr) { int ret; trace_802154_rdev_add_virtual_intf(&rdev->wpan_phy, name, type, extended_addr); - ret = rdev->ops->add_virtual_intf(&rdev->wpan_phy, name, type, + ret = rdev->ops->add_virtual_intf(&rdev->wpan_phy, name, + name_assign_type, type, extended_addr); trace_802154_rdev_return_int(&rdev->wpan_phy, ret); return ret; diff --git a/net/mac802154/cfg.c b/net/mac802154/cfg.c index 5d9f68c75e5f..70be9c799f8a 100644 --- a/net/mac802154/cfg.c +++ b/net/mac802154/cfg.c @@ -22,13 +22,14 @@ static struct net_device * ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy, - const char *name, int type) + const char *name, + unsigned char name_assign_type, int type) { struct ieee802154_local *local = wpan_phy_priv(wpan_phy); struct net_device *dev; rtnl_lock(); - dev = ieee802154_if_add(local, name, type, + dev = ieee802154_if_add(local, name, name_assign_type, type, cpu_to_le64(0x0000000000000000ULL)); rtnl_unlock(); @@ -45,12 +46,14 @@ static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy, static int ieee802154_add_iface(struct wpan_phy *phy, const char *name, + unsigned char name_assign_type, enum nl802154_iftype type, __le64 extended_addr) { struct ieee802154_local *local = wpan_phy_priv(phy); struct net_device *err; - err = ieee802154_if_add(local, name, type, extended_addr); + err = ieee802154_if_add(local, name, name_assign_type, type, + extended_addr); return PTR_ERR_OR_ZERO(err); } diff --git a/net/mac802154/ieee802154_i.h b/net/mac802154/ieee802154_i.h index bebd70ffc7a3..127ba18386fc 100644 --- a/net/mac802154/ieee802154_i.h +++ b/net/mac802154/ieee802154_i.h @@ -182,7 +182,8 @@ void ieee802154_iface_exit(void); void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata); struct net_device * ieee802154_if_add(struct ieee802154_local *local, const char *name, - enum nl802154_iftype type, __le64 extended_addr); + unsigned char name_assign_type, enum nl802154_iftype type, + __le64 extended_addr); void ieee802154_remove_interfaces(struct ieee802154_local *local); #endif /* __IEEE802154_I_H */ diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c index 38b56f9d9386..91b75abbd1a1 100644 --- a/net/mac802154/iface.c +++ b/net/mac802154/iface.c @@ -522,7 +522,8 @@ ieee802154_setup_sdata(struct ieee802154_sub_if_data *sdata, struct net_device * ieee802154_if_add(struct ieee802154_local *local, const char *name, - enum nl802154_iftype type, __le64 extended_addr) + unsigned char name_assign_type, enum nl802154_iftype type, + __le64 extended_addr) { struct net_device *ndev = NULL; struct ieee802154_sub_if_data *sdata = NULL; @@ -531,7 +532,7 @@ ieee802154_if_add(struct ieee802154_local *local, const char *name, ASSERT_RTNL(); ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, name, - NET_NAME_UNKNOWN, ieee802154_if_setup); + name_assign_type, ieee802154_if_setup); if (!ndev) return ERR_PTR(-ENOMEM); diff --git a/net/mac802154/main.c b/net/mac802154/main.c index 8500378c8318..68b9667323ec 100644 --- a/net/mac802154/main.c +++ b/net/mac802154/main.c @@ -161,7 +161,8 @@ int ieee802154_register_hw(struct ieee802154_hw *hw) rtnl_lock(); - dev = ieee802154_if_add(local, "wpan%d", NL802154_IFTYPE_NODE, + dev = ieee802154_if_add(local, "wpan%d", NET_NAME_ENUM, + NL802154_IFTYPE_NODE, cpu_to_le64(0x0000000000000000ULL)); if (IS_ERR(dev)) { rtnl_unlock(); -- cgit v1.2.3 From a5d28090405038ca1f40c13f38d6d4285456efee Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 30 Apr 2015 09:40:40 -0700 Subject: codel: fix maxpacket/mtu confusion Under presence of TSO/GSO/GRO packets, codel at low rates can be quite useless. In following example, not a single packet was ever dropped, while average delay in codel queue is ~100 ms ! qdisc codel 0: parent 1:12 limit 16000p target 5.0ms interval 100.0ms Sent 134376498 bytes 88797 pkt (dropped 0, overlimits 0 requeues 0) backlog 13626b 3p requeues 0 count 0 lastcount 0 ldelay 96.9ms drop_next 0us maxpacket 9084 ecn_mark 0 drop_overlimit 0 This comes from a confusion of what should be the minimal backlog. It is pretty clear it is not 64KB or whatever max GSO packet ever reached the qdisc. codel intent was to use MTU of the device. After the fix, we finally drop some packets, and rtt/cwnd of my single TCP flow are meeting our expectations. qdisc codel 0: parent 1:12 limit 16000p target 5.0ms interval 100.0ms Sent 102798497 bytes 67912 pkt (dropped 1365, overlimits 0 requeues 0) backlog 6056b 3p requeues 0 count 1 lastcount 1 ldelay 36.3ms drop_next 0us maxpacket 10598 ecn_mark 0 drop_overlimit 0 Signed-off-by: Eric Dumazet Cc: Kathleen Nichols Cc: Dave Taht Cc: Van Jacobson Signed-off-by: David S. Miller --- include/net/codel.h | 10 +++++++--- net/sched/sch_codel.c | 2 +- net/sched/sch_fq_codel.c | 2 +- 3 files changed, 9 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/net/codel.h b/include/net/codel.h index aeee28081245..1e18005f7f65 100644 --- a/include/net/codel.h +++ b/include/net/codel.h @@ -120,11 +120,13 @@ static inline u32 codel_time_to_us(codel_time_t val) * struct codel_params - contains codel parameters * @target: target queue size (in time units) * @interval: width of moving time window + * @mtu: device mtu, or minimal queue backlog in bytes. * @ecn: is Explicit Congestion Notification enabled */ struct codel_params { codel_time_t target; codel_time_t interval; + u32 mtu; bool ecn; }; @@ -166,10 +168,12 @@ struct codel_stats { u32 ecn_mark; }; -static void codel_params_init(struct codel_params *params) +static void codel_params_init(struct codel_params *params, + const struct Qdisc *sch) { params->interval = MS2TIME(100); params->target = MS2TIME(5); + params->mtu = psched_mtu(qdisc_dev(sch)); params->ecn = false; } @@ -180,7 +184,7 @@ static void codel_vars_init(struct codel_vars *vars) static void codel_stats_init(struct codel_stats *stats) { - stats->maxpacket = 256; + stats->maxpacket = 0; } /* @@ -234,7 +238,7 @@ static bool codel_should_drop(const struct sk_buff *skb, stats->maxpacket = qdisc_pkt_len(skb); if (codel_time_before(vars->ldelay, params->target) || - sch->qstats.backlog <= stats->maxpacket) { + sch->qstats.backlog <= params->mtu) { /* went below - stay below for at least interval */ vars->first_above_time = 0; return false; diff --git a/net/sched/sch_codel.c b/net/sched/sch_codel.c index de28f8e968e8..7a0bdb16ac92 100644 --- a/net/sched/sch_codel.c +++ b/net/sched/sch_codel.c @@ -164,7 +164,7 @@ static int codel_init(struct Qdisc *sch, struct nlattr *opt) sch->limit = DEFAULT_CODEL_LIMIT; - codel_params_init(&q->params); + codel_params_init(&q->params, sch); codel_vars_init(&q->vars); codel_stats_init(&q->stats); diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c index 1e52decb7b59..c244c45b78d7 100644 --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c @@ -391,7 +391,7 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt) q->perturbation = prandom_u32(); INIT_LIST_HEAD(&q->new_flows); INIT_LIST_HEAD(&q->old_flows); - codel_params_init(&q->cparams); + codel_params_init(&q->cparams, sch); codel_stats_init(&q->cstats); q->cparams.ecn = true; -- cgit v1.2.3 From ff419b3f95ab7a97c5f72876b53f12a249dacc2a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 26 Apr 2015 20:13:34 -0700 Subject: mac80211: fix 90 kernel-doc warnings Eliminate 90 of these warnings: Warning(..//include/net/mac80211.h:1682): No description found for parameter 'drv_priv[0]' Signed-off-by: Randy Dunlap Signed-off-by: Johannes Berg --- include/net/mac80211.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index b4bef1152c05..8e3668b44c29 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1666,6 +1666,8 @@ struct ieee80211_tx_control { * @sta: station table entry, %NULL for per-vif queue * @tid: the TID for this queue (unused for per-vif queue) * @ac: the AC for this queue + * @drv_priv: data area for driver use, will always be aligned to + * sizeof(void *). * * The driver can obtain packets from this queue by calling * ieee80211_tx_dequeue(). -- cgit v1.2.3 From c967a0873a7836c7a77bf611f1c7d3f47c554c45 Mon Sep 17 00:00:00 2001 From: Tom Herbert 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 Signed-off-by: David S. Miller --- 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') 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 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 Signed-off-by: David S. Miller --- include/uapi/linux/mpls.h | 12 ++++++------ net/mpls/af_mpls.c | 18 +++++++++--------- 2 files changed, 15 insertions(+), 15 deletions(-) (limited to 'include') 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 01d460dd70adc858e15307332832183c622bee50 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 12 May 2015 09:37:00 -0600 Subject: net: Remove remaining remnants of pm_qos from netdevice.h Commit e2c6544829f removed pm_qos from struct net_device but left the comment and header file. Remove those. Signed-off-by: David Ahern Cc: Thomas Graf Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 1899c74a7127..05b9a694e213 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -25,7 +25,6 @@ #ifndef _LINUX_NETDEVICE_H #define _LINUX_NETDEVICE_H -#include #include #include #include @@ -1499,8 +1498,6 @@ enum netdev_priv_flags { * * @qdisc_tx_busylock: XXX: need comments on this one * - * @pm_qos_req: Power Management QoS object - * * FIXME: cleanup struct net_device such that network protocol info * moves out. */ -- cgit v1.2.3