1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
From 7bd34822b9922beb22a6384d9190646105d259d8 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 1 Oct 2015 17:41:44 +0100
Subject: [PATCH 727/744] net: mvneta: add flow control support via phylink
Add flow control support to mvneta, including the ethtool hooks. This
uses the phylink code to calculate the result of autonegotiation where
a phy is attached, and to handle the ethtool settings.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
drivers/net/ethernet/marvell/mvneta.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3208,6 +3208,8 @@ static void mvneta_mac_config(struct net
if (state->advertising & ADVERTISED_Pause)
new_an |= MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL;
+ if (state->pause & MLO_PAUSE_TXRX_MASK)
+ new_an |= MVNETA_GMAC_CONFIG_FLOW_CTRL;
switch (mode) {
case MLO_AN_SGMII:
@@ -3232,7 +3234,7 @@ static void mvneta_mac_config(struct net
/* The MAC only supports FD mode */
MVNETA_GMAC_CONFIG_FULL_DUPLEX;
- if (state->an_enabled)
+ if (state->pause & MLO_PAUSE_AN && state->an_enabled)
new_an |= MVNETA_GMAC_AN_FLOW_CTRL_EN;
break;
@@ -3685,6 +3687,22 @@ static int mvneta_ethtool_set_ringparam(
return 0;
}
+static void mvneta_ethtool_get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ phylink_ethtool_get_pauseparam(pp->phylink, pause);
+}
+
+static int mvneta_ethtool_set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct mvneta_port *pp = netdev_priv(dev);
+
+ return phylink_ethtool_set_pauseparam(pp->phylink, pause);
+}
+
static void mvneta_ethtool_get_strings(struct net_device *netdev, u32 sset,
u8 *data)
{
@@ -3866,6 +3884,8 @@ const struct ethtool_ops mvneta_eth_tool
.get_drvinfo = mvneta_ethtool_get_drvinfo,
.get_ringparam = mvneta_ethtool_get_ringparam,
.set_ringparam = mvneta_ethtool_set_ringparam,
+ .get_pauseparam = mvneta_ethtool_get_pauseparam,
+ .set_pauseparam = mvneta_ethtool_set_pauseparam,
.get_strings = mvneta_ethtool_get_strings,
.get_ethtool_stats = mvneta_ethtool_get_stats,
.get_sset_count = mvneta_ethtool_get_sset_count,
|
