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Bluetooth: Enable option to configure Max Transmission value via sockopt 

With the sockopt extension we can set a per-channel MaxTx value.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Reviewed-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Gustavo F. Padovan 2010-05-01 16:15:41 -03:00 committed by Marcel Holtmann
parent 369ba30264
commit 68d7f0ce91
2 changed files with 8 additions and 1 deletions
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2
include/net/bluetooth/l2cap.h
View File

@ -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;

7
net/bluetooth/l2cap.c
View File

@ -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 @@ static int l2cap_build_conf_req(struct sock *sk, void *data)
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);