On 05.11.2024 17:20:39, Renjaya Raga Zenta wrote:
> File is attached.
Thanks. Hmmmm it looks correct to me. Are you sure, that you are
actually using the patch?
| ----------------------- FIFO 0 - TEF -----------------
|
| TEFSTA: tefsta(0x044)=0x00000007
| TEFOVIF Transmit Event FIFO Overflow Interrupt Flag
| TEFFIF x Transmit Event FIFO Full Interrupt Flag (0: not full)
| TEFHIF x Transmit Event FIFO Half Full Interrupt Flag (0: < half full)
| TEFNEIF x Transmit Event FIFO Not Empty Interrupt Flag (0: empty)
|
| ----------------------- FIFO 3 - TX ------------------
|
| FIFOSTA: fifosta(0x078)=0x00000107
| FIFOCI = 1 FIFO Message Index
| TXABT Message Aborted Status (0: completed successfully, 1: aborted)
| TXLARB Message Lost Arbitration Status
| TXERR Error Detected During Transmission
| TXATIF Transmit Attempts Exhausted Interrupt Pending
| RXOVIF Receive FIFO Overflow Interrupt Flag
| TFERFFIF x Transmit/Receive FIFO Empty/Full Interrupt Flag
| TFHRFHIF x Transmit/Receive FIFO Half Empty/Half Full Interrupt Flag
| TFNRFNIF x Transmit/Receive FIFO Not Full/Not Empty Interrupt Flag
Please add this patch, compile, reproduce the issue, send me the
devcoredump and the log output.
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-tef.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-tef.c
@@ -149,6 +149,10 @@ mcp251xfd_get_tef_len(struct mcp251xfd_priv *priv, u8 *len_p)
len = (chip_tx_tail << shift) - (tail << shift);
*len_p = len >> shift;
+ if (*len_p == 0)
+ netdev_err(priv->ndev, "%s: fifo_sta=0x%08x head=0x%08x tail=0x%08x\n", __func__,
+ fifo_sta, tx_ring->head, tx_ring->tail);
+
return 0;
}
regards,
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
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