linux-kernel - [PATCH 4/4] ftgmac100: Restart MAC HW once

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Date:   Mon, 19 Oct 2020 16:57:17 +0800
From:   Dylan Hung <dylan_hung@...eedtech.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <ratbert@...aday-tech.com>,
        <linux-aspeed@...ts.ozlabs.org>, <openbmc@...ts.ozlabs.org>
CC:     <BMC-SW@...eedtech.com>, Joel Stanley <joel@....id.au>
Subject: [PATCH 4/4] ftgmac100: Restart MAC HW once

The interrupt handler may set the flag to reset the mac in the future,
but that flag is not cleared once the reset has occured.

Fixes: 10cbd6407609 ("ftgmac100: Rework NAPI & interrupts handling")
Signed-off-by: Dylan Hung <dylan_hung@...eedtech.com>
Signed-off-by: Joel Stanley <joel@....id.au>
---
 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 0c67fc3e27df..57736b049de3 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1326,6 +1326,7 @@ 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 */
 		ftgmac100_write(FTGMAC100_INT_BAD, priv->base + FTGMAC100_OFFSET_IER);
-- 
2.17.1