From: Ivan Malov <ivan.ma...@oktetlabs.ru>
Examples of recoverable exceptions because of Tx error are:
- Tx descriptor PCI read error
- invalid Tx option descriptor
- Tx option descriptor not supported by the firmware variant
- unexpected Tx option descriptor (e.g. missing FATSO2A before
FATSO2B, missing FATSO2B after FATSO2A)
- incomplete packet push (CONT bit set in the latest pushed DMA
descriptor)
Reviewed-by: Andrew Lee <a...@solarflare.com>
Reviewed-by: Robert Stonehouse <rstoneho...@solarflare.com>
Signed-off-by: Ivan Malov <ivan.ma...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybche...@solarflare.com>
---
drivers/net/sfc/sfc_ev.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/net/sfc/sfc_ev.c b/drivers/net/sfc/sfc_ev.c
index 36aede8..af3c7b2 100644
--- a/drivers/net/sfc/sfc_ev.c
+++ b/drivers/net/sfc/sfc_ev.c
@@ -339,6 +339,20 @@ sfc_ev_qpoll(struct sfc_evq *evq)
rxq_sw_index);
}
+ if (evq->txq != NULL) {
+ unsigned int txq_sw_index = sfc_txq_sw_index(evq->txq);
+
+ sfc_warn(sa,
+ "restart TxQ %u because of exception on its
EvQ %u",
+ txq_sw_index, evq->evq_index);
+
+ sfc_tx_qstop(sa, txq_sw_index);
+ rc = sfc_tx_qstart(sa, txq_sw_index);
+ if (rc != 0)
+ sfc_err(sa, "cannot restart TxQ %u",
+ txq_sw_index);
+ }
+
if (evq->exception)
sfc_panic(sa, "unrecoverable exception on EvQ %u",
evq->evq_index);
--
2.5.5
