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authorHeiner Kallweit <hkallweit1@gmail.com>2019-02-10 15:26:07 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-10 12:54:48 -0800
commit978749617bc0b5355e659cbeb855f7bcdc3b40ea (patch)
tree0fdd208a6740b7b26f9d225f705411d10dcfada8 /drivers/net/ethernet/realtek
parentccc8ca9b90acb45a3309f922b2591b07b4e070ec (diff)
Revert "r8169: remove unneeded mmiowb barriers"
This reverts commit bd7153bd83b806bfcc2e79b7a6f43aa653d06ef3. There doesn't seem to be anything wrong with this patch, it's just reverted to get a stable baseline again. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/realtek')
-rw-r--r--drivers/net/ethernet/realtek/r8169.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index abb94c543aa2..bba806ce57d3 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1286,11 +1286,13 @@ static u16 rtl_get_events(struct rtl8169_private *tp)
static void rtl_ack_events(struct rtl8169_private *tp, u16 bits)
{
RTL_W16(tp, IntrStatus, bits);
+ mmiowb();
}
static void rtl_irq_disable(struct rtl8169_private *tp)
{
RTL_W16(tp, IntrMask, 0);
+ mmiowb();
}
#define RTL_EVENT_NAPI_RX (RxOK | RxErr)
@@ -6130,8 +6132,10 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
if (unlikely(stop_queue))
netif_stop_queue(dev);
- if (__netdev_sent_queue(dev, skb->len, skb->xmit_more))
+ if (__netdev_sent_queue(dev, skb->len, skb->xmit_more)) {
RTL_W8(tp, TxPoll, NPQ);
+ mmiowb();
+ }
if (unlikely(stop_queue)) {
/* Sync with rtl_tx:
@@ -6483,7 +6487,9 @@ static int rtl8169_poll(struct napi_struct *napi, int budget)
if (work_done < budget) {
napi_complete_done(napi, work_done);
+
rtl_irq_enable(tp);
+ mmiowb();
}
return work_done;