From 68d7f0ce911e41e463c45911be031cdf6a096fe8 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Sat, 1 May 2010 16:15:41 -0300 Subject: [PATCH] Bluetooth: Enable option to configure Max Transmission value via sockopt MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With the sockopt extension we can set a per-channel MaxTx value. Signed-off-by: Gustavo F. Padovan Reviewed-by: João Paulo Rechi Vita Signed-off-by: Marcel Holtmann --- include/net/bluetooth/l2cap.h | 2 ++ net/bluetooth/l2cap.c | 7 ++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index 059260bed4e8..8942c2ffc58b 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -55,6 +55,7 @@ struct l2cap_options { __u16 flush_to; __u8 mode; __u8 fcs; + __u8 max_tx; __u16 txwin_size; }; @@ -340,6 +341,7 @@ struct l2cap_pinfo { __u8 ident; __u8 tx_win; + __u8 max_tx; __u8 remote_tx_win; __u8 remote_max_tx; __u16 retrans_timeout; diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index ff1466b21580..f9e4da2677af 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -783,6 +783,7 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent) pi->omtu = l2cap_pi(parent)->omtu; pi->mode = l2cap_pi(parent)->mode; pi->fcs = l2cap_pi(parent)->fcs; + pi->max_tx = l2cap_pi(parent)->max_tx; pi->tx_win = l2cap_pi(parent)->tx_win; pi->sec_level = l2cap_pi(parent)->sec_level; pi->role_switch = l2cap_pi(parent)->role_switch; @@ -791,6 +792,7 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent) pi->imtu = L2CAP_DEFAULT_MTU; pi->omtu = 0; pi->mode = L2CAP_MODE_BASIC; + pi->max_tx = max_transmit; pi->fcs = L2CAP_FCS_CRC16; pi->tx_win = tx_window; pi->sec_level = BT_SECURITY_LOW; @@ -1785,6 +1787,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us opts.flush_to = l2cap_pi(sk)->flush_to; opts.mode = l2cap_pi(sk)->mode; opts.fcs = l2cap_pi(sk)->fcs; + opts.max_tx = l2cap_pi(sk)->max_tx; opts.txwin_size = (__u16)l2cap_pi(sk)->tx_win; len = min_t(unsigned int, sizeof(opts), optlen); @@ -1797,6 +1800,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us l2cap_pi(sk)->omtu = opts.omtu; l2cap_pi(sk)->mode = opts.mode; l2cap_pi(sk)->fcs = opts.fcs; + l2cap_pi(sk)->max_tx = opts.max_tx; l2cap_pi(sk)->tx_win = (__u8)opts.txwin_size; break; @@ -1912,6 +1916,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us opts.flush_to = l2cap_pi(sk)->flush_to; opts.mode = l2cap_pi(sk)->mode; opts.fcs = l2cap_pi(sk)->fcs; + opts.max_tx = l2cap_pi(sk)->max_tx; opts.txwin_size = (__u16)l2cap_pi(sk)->tx_win; len = min_t(unsigned int, len, sizeof(opts)); @@ -2331,7 +2336,7 @@ done: case L2CAP_MODE_ERTM: rfc.mode = L2CAP_MODE_ERTM; rfc.txwin_size = pi->tx_win; - rfc.max_transmit = max_transmit; + rfc.max_transmit = pi->max_tx; rfc.retrans_timeout = 0; rfc.monitor_timeout = 0; rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE);