Refer to commit 8a3ef4b89e6d ("net/txgbe: fix Rx buffer size in
config register").
When round up buffer size to 1K, to configure the register, hardware
will receive packets exceeding the buffer size in LRO mode. It will
cause a segment fault in the receive function.
Fixes: 92144bb36c6f ("net/txgbe: support VF Rx/Tx")
Cc: [email protected]
Signed-off-by: Jiawen Wu <[email protected]>
---
drivers/net/txgbe/txgbe_rxtx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/txgbe/txgbe_rxtx.c b/drivers/net/txgbe/txgbe_rxtx.c
index d77db1efa2..a3472bcf34 100644
--- a/drivers/net/txgbe/txgbe_rxtx.c
+++ b/drivers/net/txgbe/txgbe_rxtx.c
@@ -5256,7 +5256,7 @@ txgbevf_dev_rx_init(struct rte_eth_dev *dev)
*/
buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
RTE_PKTMBUF_HEADROOM);
- buf_size = ROUND_UP(buf_size, 1 << 10);
+ buf_size = ROUND_DOWN(buf_size, 1 << 10);
srrctl |= TXGBE_RXCFG_PKTLEN(buf_size);
/*
--
2.48.1
