From: "Gustavo F. Padovan" <padovan@profusion.mobi>
To: linux-bluetooth@vger.kernel.org
Cc: marcel@holtmann.org, gustavo@padovan.org, jprvita@profusion.mobi,
ulisses@profusion.mobi
Subject: [PATCH 11/19] Bluetooth: Fix ACL MTU issue
Date: Tue, 23 Mar 2010 16:48:38 -0300 [thread overview]
Message-ID: <1269373726-13209-12-git-send-email-padovan@profusion.mobi> (raw)
In-Reply-To: <1269373726-13209-11-git-send-email-padovan@profusion.mobi>
ERTM and Streaming Modes was having problems when the ACL MTU is lower
than MPS. The 'minus 10' is to take in account the header and fcs
lenghts.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Reviewed-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
---
net/bluetooth/l2cap.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 428be03..12104f4 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2297,6 +2297,8 @@ done:
rfc.retrans_timeout = 0;
rfc.monitor_timeout = 0;
rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE);
+ if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10)
+ rfc.max_pdu_size = pi->conn->mtu - 10;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
@@ -2318,6 +2320,8 @@ done:
rfc.retrans_timeout = 0;
rfc.monitor_timeout = 0;
rfc.max_pdu_size = cpu_to_le16(L2CAP_DEFAULT_MAX_PDU_SIZE);
+ if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10)
+ rfc.max_pdu_size = pi->conn->mtu - 10;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
--
1.6.4.4
next prev parent reply other threads:[~2010-03-23 19:48 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-23 19:48 [PATCH 00/19] Patches for eL2CAP Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 01/19] Bluetooth: Implement 'Send IorRRorRNR' event Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 02/19] Bluetooth: Support case with F bit set under WAIT_F state Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 03/19] Bluetooth: Fix memory leak of S-frames into L2CAP Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 04/19] Bluetooth: Check the minimum {I,S}-frame size " Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 05/19] Bluetooth: Check if SDU size is greater than MTU on L2CAP Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 06/19] Bluetooth: Fix expected_tx_seq calculation " Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 07/19] Bluetooth: Implement SendAck() Action on ERTM Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 08/19] Bluetooth: Move set of P-bit to l2cap_send_sframe() Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 09/19] Bluetooth: Add Recv RR (P=0)(F=0) for SREJ_SENT state on ERTM Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 10/19] Bluetooth: Use a l2cap_pinfo struct instead l2cap_pi() macro Gustavo F. Padovan
2010-03-23 19:48 ` Gustavo F. Padovan [this message]
2010-03-23 19:48 ` [PATCH 12/19] Bluetooth: Split l2cap_data_channel_sframe() Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 13/19] Bluetooth: Handle all cases of receipt of RNR-frames into L2CAP Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 14/19] Bluetooth: Group the ack of I-frames into l2cap_data_channel_rrframe() Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 15/19] Bluetooth: Remove duplicate use of __get_reqseq() macro on L2CAP Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 16/19] Bluetooth: Finish implementation for Rec RR (P=1) on ERTM Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 17/19] Bluetooth: Ignore I-frames with a duplicated txSeq Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 18/19] Bluetooth: Add timer to Acknowledge I-frames Gustavo F. Padovan
2010-03-23 19:48 ` [PATCH 19/19] Bluetooth: Move specific Basic Mode code to the right place Gustavo F. Padovan
2010-03-26 19:19 ` [PATCH 1/6] Bluetooth: Ignore Tx Window value with Streaming mode Gustavo F. Padovan
2010-03-26 19:19 ` [PATCH 2/6] Bluetooth: Read RFC conf option on a successful Conf RSP Gustavo F. Padovan
2010-03-26 19:19 ` [PATCH 3/6] Bluetooth: Fix configuration of the MPS value Gustavo F. Padovan
2010-03-26 19:19 ` [PATCH 4/6] Bluetooth: Add le16 macro to Retransmission and Monitor Timeouts values Gustavo F. Padovan
2010-03-26 19:19 ` [PATCH 5/6] Bluetooth: Check the SDU size against the MTU value Gustavo F. Padovan
2010-03-26 19:19 ` [PATCH 6/6] Bluetooth: Close channel when an invalid ReqSeq is received Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 01/10] Bluetooth: Ignore Tx Window value with Streaming mode Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 02/10] Bluetooth: Read RFC conf option on a successful Conf RSP Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 03/10] Bluetooth: Fix configuration of the MPS value Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 04/10] Bluetooth: Add le16 macro to Retransmission and Monitor Timeouts values Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 05/10] Bluetooth: Check the SDU size against the MTU value Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 06/10] Bluetooth: Send Ack after clear the SREJ list Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 07/10] Bluetooth: Add sockopt configuration for txWindow on L2CAP Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 08/10] Bluetooth: Change acknowledgement to use the value of txWindow Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 09/10] Bluetooth: Add module parameter for txWindow size on L2CAP Gustavo F. Padovan
2010-03-30 18:52 ` [PATCH 10/10] Bluetooth: Enable option to configure Max Transmission value via sockopt Gustavo F. Padovan
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