From 9837589f6225493b585d40bbfafd57969fe235b3 Mon Sep 17 00:00:00 2001
From: Dylan Hung <dylan_hung@aspeedtech.com>
Date: Fri, 12 Mar 2021 11:04:05 +1030
Subject: [PATCH 2/5] ftgmac100: Restart MAC HW once
Git-commit: 6897087323a2fde46df32917462750c069668b2f
Patch-mainline: v5.12-rc5
References: git-fixes
The interrupt handler may set the flag to reset the mac in the future,
but that flag is not cleared once the reset has occurred.
Fixes: 10cbd6407609 ("ftgmac100: Rework NAPI & interrupts handling")
Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/ethernet/faraday/ftgmac100.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 1d0dbe506331..8868c09013f1 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1328,6 +1328,7 @@ static int ftgmac100_poll(struct napi_struct *napi, int budget)
*/
if (unlikely(priv->need_mac_restart)) {
ftgmac100_start_hw(priv);
+ priv->need_mac_restart = false;
/* Re-enable "bad" interrupts */
iowrite32(FTGMAC100_INT_BAD,
--
2.16.4