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Bluetooth: Add workaround for no command buffer available

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Add workaround for no command buffer available when the host is
transmitting Host Number of Completed Packet Commands.
This command does not follow normal flow control of HCI commands and
the controller side HCI drivers that allocates HCI command buffers with
K_NO_WAIT can end up running out of command buffers.

Increase the command buffer count from 2 to 10 for the affected drivers
until the issue has a proper fix.

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
This commit is contained in:
Joakim Andersson 2021-08-16 14:51:12 +02:00 committed by Christopher Friedt
parent d6da733097
commit 81614307e9
4 changed files with 16 additions and 0 deletions
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4
samples/bluetooth/hci_rpmsg/prj.conf
View File

@ -11,3 +11,7 @@ CONFIG_BT_MAX_CONN=16
CONFIG_BT_CTLR_ASSERT_HANDLER=y
CONFIG_BT_HCI_RAW_RESERVE=1
CONFIG_BT_BUF_CMD_TX_COUNT=4
# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
# Host number of completed commands does not follow normal flow control.
CONFIG_BT_BUF_CMD_TX_COUNT=10

4
samples/bluetooth/hci_spi/prj.conf
View File

@ -9,3 +9,7 @@ CONFIG_BT_TINYCRYPT_ECC=n
CONFIG_BT_BUF_ACL_RX_COUNT=10
CONFIG_BT_BUF_ACL_RX_SIZE=251
CONFIG_BT_HCI_RAW_RESERVE=1
# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
# Host number of completed commands does not follow normal flow control.
CONFIG_BT_BUF_CMD_TX_COUNT=10

4
samples/bluetooth/hci_usb/prj.conf
View File

@ -9,3 +9,7 @@ CONFIG_BT_HCI_RAW=y
CONFIG_USB_DEVICE_STACK=y
CONFIG_USB_DEVICE_BLUETOOTH=y
CONFIG_USB_DEVICE_BLUETOOTH_VS_H4=n
# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
# Host number of completed commands does not follow normal flow control.
CONFIG_BT_BUF_CMD_TX_COUNT=10

4
samples/bluetooth/hci_usb_h4/prj.conf
View File

@ -5,3 +5,7 @@ CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_USB_DEVICE_STACK=y
CONFIG_USB_DEVICE_BT_H4=y
# Workaround: Unable to allocate command buffer when using K_NO_WAIT since
# Host number of completed commands does not follow normal flow control.
CONFIG_BT_BUF_CMD_TX_COUNT=10