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fix(nimble): Add packet allocation retry for limited iteration

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This commit is contained in:
Rahul Tank
2025-07-18 08:00:01 +05:30
committed by Shreeyash
parent 274c58c2ad
commit 6502b66afb
1 changed files with 19 additions and 5 deletions
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24
components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
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@@ -162,19 +162,33 @@ static void ble_hci_rx_acl(uint8_t *data, uint16_t len)
struct os_mbuf *m = NULL; struct os_mbuf *m = NULL;
int rc; int rc;
int sr; int sr;
int retry_count = 1;
if (len < BLE_HCI_DATA_HDR_SZ || len > MYNEWT_VAL(BLE_TRANSPORT_ACL_SIZE)) { if (len < BLE_HCI_DATA_HDR_SZ || len > MYNEWT_VAL(BLE_TRANSPORT_ACL_SIZE)) {
return; return;
} }
do {
do {
m = ble_transport_alloc_acl_from_ll(); m = ble_transport_alloc_acl_from_ll();
if (!m) { if (!m) {
esp_rom_printf("Failed to allocate buffer, retrying "); if (retry_count % 5) {
/* Give some time to free buffer and try again */ esp_rom_printf("ACL buf alloc failed %d times\n", retry_count);
vTaskDelay(1); esp_rom_printf("Free ACL mbufs: %d\n", os_msys_num_free());
}
vTaskDelay(1);
retry_count++;
if (retry_count >= 30) {
esp_rom_printf("MBUF alloc stuck");
return;
}
} }
}while(!m); } while (!m);
if ((rc = os_mbuf_append(m, data, len)) != 0) { if ((rc = os_mbuf_append(m, data, len)) != 0) {
esp_rom_printf("%s failed to os_mbuf_append; rc = %d", __func__, rc); esp_rom_printf("%s failed to os_mbuf_append; rc = %d", __func__, rc);