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From: Mario Limonciello <mario.limonciello@dell.com>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	intel-wired-lan@lists.osuosl.org
Cc: linux-kernel@vger.kernel.org, Linux PM <linux-pm@vger.kernel.org>,
	Netdev <netdev@vger.kernel.org>,
	Alexander Duyck <alexander.duyck@gmail.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Sasha Netfin <sasha.neftin@intel.com>,
	Aaron Brown <aaron.f.brown@intel.com>,
	Stefan Assmann <sassmann@redhat.com>,
	David Miller <davem@davemloft.net>,
	darcari@redhat.com, Yijun.Shen@dell.com, Perry.Yuan@dell.com,
	anthony.wong@canonical.com,
	Mario Limonciello <mario.limonciello@dell.com>,
	Yijun Shen <yijun.shen@dell.com>
Subject: [PATCH v3 3/7] e1000e: Export S0ix flags to ethtool
Date: Fri,  4 Dec 2020 14:09:16 -0600	[thread overview]
Message-ID: <20201204200920.133780-4-mario.limonciello@dell.com> (raw)
In-Reply-To: <20201204200920.133780-1-mario.limonciello@dell.com>

This flag can be used for debugging and development purposes
including determining if S0ix flows work properly for a system
not currently recognized by heuristics.

Tested-by: Yijun Shen <yijun.shen@dell.com>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
---
 drivers/net/ethernet/intel/e1000e/ethtool.c | 40 +++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
index 03215b0aee4b..eb683949ebfe 100644
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
@@ -23,6 +23,13 @@ struct e1000_stats {
 	int stat_offset;
 };
 
+static const char e1000e_priv_flags_strings[][ETH_GSTRING_LEN] = {
+#define E1000E_PRIV_FLAGS_S0IX_ENABLED	BIT(0)
+	"s0ix-enabled",
+};
+
+#define E1000E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(e1000e_priv_flags_strings)
+
 #define E1000_STAT(str, m) { \
 		.stat_string = str, \
 		.type = E1000_STATS, \
@@ -1776,6 +1783,8 @@ static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
 		return E1000_TEST_LEN;
 	case ETH_SS_STATS:
 		return E1000_STATS_LEN;
+	case ETH_SS_PRIV_FLAGS:
+		return E1000E_PRIV_FLAGS_STR_LEN;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -2097,6 +2106,10 @@ static void e1000_get_strings(struct net_device __always_unused *netdev,
 			p += ETH_GSTRING_LEN;
 		}
 		break;
+	case ETH_SS_PRIV_FLAGS:
+		memcpy(data, e1000e_priv_flags_strings,
+		       E1000E_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
+		break;
 	}
 }
 
@@ -2305,6 +2318,31 @@ static int e1000e_get_ts_info(struct net_device *netdev,
 	return 0;
 }
 
+static u32 e1000e_get_priv_flags(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	u32 priv_flags = 0;
+
+	if (adapter->flags2 & FLAG2_ENABLE_S0IX_FLOWS)
+		priv_flags |= E1000E_PRIV_FLAGS_S0IX_ENABLED;
+
+	return priv_flags;
+}
+
+static int e1000e_set_priv_flags(struct net_device *netdev, u32 priv_flags)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	unsigned int flags2 = adapter->flags2;
+
+	flags2 &= ~FLAG2_ENABLE_S0IX_FLOWS;
+	if (priv_flags & E1000E_PRIV_FLAGS_S0IX_ENABLED)
+		flags2 |= FLAG2_ENABLE_S0IX_FLOWS;
+	if (flags2 != adapter->flags2)
+		adapter->flags2 = flags2;
+
+	return 0;
+}
+
 static const struct ethtool_ops e1000_ethtool_ops = {
 	.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
 	.get_drvinfo		= e1000_get_drvinfo,
@@ -2336,6 +2374,8 @@ static const struct ethtool_ops e1000_ethtool_ops = {
 	.set_eee		= e1000e_set_eee,
 	.get_link_ksettings	= e1000_get_link_ksettings,
 	.set_link_ksettings	= e1000_set_link_ksettings,
+	.get_priv_flags		= e1000e_get_priv_flags,
+	.set_priv_flags		= e1000e_set_priv_flags,
 };
 
 void e1000e_set_ethtool_ops(struct net_device *netdev)
-- 
2.25.1


  parent reply	other threads:[~2020-12-04 20:21 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-04 20:09 [PATCH v3 0/7] Improve s0ix flows for systems i219LM Mario Limonciello
2020-12-04 20:09 ` [PATCH v3 1/7] e1000e: fix S0ix flow to allow S0i3.2 subset entry Mario Limonciello
2020-12-08 17:24   ` Mario Limonciello
2020-12-08 18:18     ` Jakub Kicinski
2020-12-04 20:09 ` [PATCH v3 2/7] e1000e: Move all S0ix related code into its own source file Mario Limonciello
2020-12-04 21:25   ` Alexander Duyck
2020-12-04 20:09 ` Mario Limonciello [this message]
2020-12-04 20:09 ` [PATCH v3 4/7] e1000e: Add Dell's Comet Lake systems into S0ix heuristics Mario Limonciello
2020-12-04 20:09 ` [PATCH v3 5/7] e1000e: Add more Dell CML " Mario Limonciello
2020-12-04 20:09 ` [PATCH v3 6/7] e1000e: Add Dell TGL desktop " Mario Limonciello
2020-12-04 20:09 ` [PATCH v3 7/7] e1000e: Add another Dell TGL notebook system " Mario Limonciello
2020-12-04 21:27 ` [PATCH v3 0/7] Improve s0ix flows for systems i219LM Alexander Duyck
2020-12-04 22:28   ` Limonciello, Mario
2020-12-04 22:38     ` Alexander Duyck
2020-12-05 23:49       ` Jakub Kicinski
2020-12-06 17:32         ` Alexander Duyck
2020-12-07 13:28 ` Hans de Goede
2020-12-07 15:41   ` Limonciello, Mario
2020-12-08  5:08     ` Neftin, Sasha
2020-12-08  9:30       ` Hans de Goede
2020-12-08 16:14         ` Alexander Duyck
2020-12-08 22:29           ` Limonciello, Mario
2020-12-09 14:44           ` Hans de Goede
2020-12-10  2:24             ` Alexander Duyck
2020-12-10  5:28               ` Neftin, Sasha
2020-12-13  8:33                 ` Neftin, Sasha

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