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Bluetooth: Add CONFIG_BT_LE_L2CAP_ECRED 

This adds CONFIG_BT_LE_L2CAP_ECRED which can be used to enable L2CAP
Enhanced Credit Flow Control Mode by default, previously it was only
possible to set it via module parameter (e.g. bluetooth.enable_ecred=1).

Since L2CAP ECRED mode is required by the likes of EATT which is
recommended for LE Audio this enables it by default.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-By: Tedd Ho-Jeong An <tedd.an@intel.com>
This commit is contained in:
Luiz Augusto von Dentz 2022-10-27 16:18:04 -07:00
parent db11223571
commit 462fcd5392
2 changed files with 12 additions and 1 deletions
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11
net/bluetooth/Kconfig
View File

@ -78,6 +78,17 @@ config BT_LE
Bluetooth Low Energy includes support low-energy physical
layer available with Bluetooth version 4.0 or later.
config BT_LE_L2CAP_ECRED
bool "Bluetooth L2CAP Enhanced Credit Flow Control"
depends on BT_LE
default y
help
Bluetooth Low Energy L2CAP Enhanced Credit Flow Control available with
Bluetooth version 5.2 or later.
This can be overridden by passing bluetooth.enable_ecred=[1|0]
on the kernel commandline.
config BT_6LOWPAN
tristate "Bluetooth 6LoWPAN support"
depends on BT_LE && 6LOWPAN

2
net/bluetooth/l2cap_core.c
View File

@ -45,7 +45,7 @@
#define LE_FLOWCTL_MAX_CREDITS 65535
bool disable_ertm;
bool enable_ecred;
bool enable_ecred = IS_ENABLED(CONFIG_BT_LE_L2CAP_ECRED);
static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN | L2CAP_FEAT_UCD;