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Merge pull request #16084 from yarrick/esp_link

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esp32/eth: Don't overwrite queued event with RX packet
This commit is contained in:
Alexandre Abadie 2021-02-26 09:52:27 +01:00 committed by GitHub
commit a68cfacdd4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 4 deletions
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13
cpu/esp32/esp-eth/esp_eth_netdev.c
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@ -100,10 +100,15 @@ static esp_err_t IRAM_ATTR _eth_input_callback(void *buffer, uint16_t len, void
mutex_lock(&_esp_eth_dev.dev_lock);
memcpy(_esp_eth_dev.rx_buf, buffer, len);
_esp_eth_dev.rx_len = len;
_esp_eth_dev.event = SYSTEM_EVENT_ETH_RX_DONE;
netdev_trigger_event_isr(&_esp_eth_dev.netdev);
/* Don't overwrite other events, drop packet instead.
* Keep the latest received packet if previous has not been read. */
if (_esp_eth_dev.event == SYSTEM_EVENT_MAX ||
_esp_eth_dev.event == SYSTEM_EVENT_ETH_RX_DONE) {
memcpy(_esp_eth_dev.rx_buf, buffer, len);
_esp_eth_dev.rx_len = len;
_esp_eth_dev.event = SYSTEM_EVENT_ETH_RX_DONE;
netdev_trigger_event_isr(&_esp_eth_dev.netdev);
}
mutex_unlock(&_esp_eth_dev.dev_lock);