From 466f775e02bcde5ea7454cd73ecf1a0f79275a30 Mon Sep 17 00:00:00 2001
From: Daniel Inderbitzin <daniel.inderbitzin@crypto.ch>
Date: Fri, 10 Jul 2015 14:06:02 +0200
Subject: [PATCH] qoriq eth.c bugfix: handle received corrupted frames
correctly
The rxbd is not correctly handled in case of a frame physical error
(FPE) or frame size error (FSE). The rxbd must be cleared and
advanced in case of an error to avoid receive stall.
Signed-off-by: Daniel Inderbitzin <daniel.inderbitzin@gmail.com>
---
drivers/net/fm/eth.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c
index d7a37f39a8..6702f5a520 100644
--- a/drivers/net/fm/eth.c
+++ b/drivers/net/fm/eth.c
@@ -520,6 +520,7 @@ static int fm_eth_recv(struct eth_device *dev)
u16 status, len;
u8 *data;
u16 offset_out;
+ int ret = 1;
fm_eth = (struct fm_eth *)dev->priv;
pram = fm_eth->rx_pram;
@@ -533,7 +534,7 @@ static int fm_eth_recv(struct eth_device *dev)
net_process_received_packet(data, len);
} else {
printf("%s: Rx error\n", dev->name);
- return 0;
+ ret = 0;
}
/* clear the RxBDs */
@@ -559,7 +560,7 @@ static int fm_eth_recv(struct eth_device *dev)
}
fm_eth->cur_rxbd = (void *)rxbd;
- return 1;
+ return ret;
}
static int fm_eth_init_mac(struct fm_eth *fm_eth, struct ccsr_fman *reg)
--
2.39.5