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Bluetooth: hci: rpmsg: do not drop hci buffers

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This fixes an issue where we would drop the hci event if allocation from
the hci event buffer pool didn't immediately succeed.

The behavior is now to block on allocation, and warn the user every 10
seconds.

Signed-off-by: Jonathan Rico <jonathan.rico@nordicsemi.no>
This commit is contained in:
Jonathan Rico 2022-03-21 10:49:02 +01:00 • committed by Carles Cufí
commit f4ea0651ac
1 changed files with 9 additions and 8 deletions
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17
drivers/bluetooth/hci/rpmsg.c
View file

@ -78,15 +78,16 @@ static struct net_buf *bt_rpmsg_evt_recv(const uint8_t *data, size_t remaining)
}
BT_DBG("len %u", hdr.len);
buf = bt_buf_get_evt(hdr.evt, discardable, K_NO_WAIT);
if (!buf) {
if (discardable) {
BT_DBG("Discardable buffer pool full, ignoring event");
} else {
BT_ERR("No available event buffers!");
do {
buf = bt_buf_get_evt(hdr.evt, discardable, discardable ? K_NO_WAIT : K_SECONDS(10));
if (!buf) {
if (discardable) {
BT_DBG("Discardable buffer pool full, ignoring event");
return buf;
}
BT_WARN("Couldn't allocate a buffer after waiting 10 seconds.");
}
return buf;
}
} while (!buf);
net_buf_add_mem(buf, &hdr, sizeof(hdr));