netdev - [RFC PATCH 03/30] i40e/netpolicy: Implement ndo_netpolicy

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Message-Id: <1468824984-65318-4-git-send-email-kan.liang@intel.com>
Date:	Sun, 17 Jul 2016 23:55:57 -0700
From:	kan.liang@...el.com
To:	davem@...emloft.net, linux-kernel@...r.kernel.org,
	intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org
Cc:	jeffrey.t.kirsher@...el.com, mingo@...hat.com,
	peterz@...radead.org, kuznet@....inr.ac.ru, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, kaber@...sh.net,
	akpm@...ux-foundation.org, keescook@...omium.org,
	viro@...iv.linux.org.uk, gorcunov@...nvz.org,
	john.stultz@...aro.org, aduyck@...antis.com, ben@...adent.org.uk,
	decot@...glers.com, jesse.brandeburg@...el.com,
	andi@...stfloor.org, Kan Liang <kan.liang@...el.com>
Subject: [RFC PATCH 03/30] i40e/netpolicy: Implement ndo_netpolicy_init

From: Kan Liang <kan.liang@...el.com>

Support ndo_netpolicy_init in i40e driver.
For i40e driver, there is no extra initialization work to do. It only
needs to update the available policy bitmap.
policy_param will be filled according to different policies later.

Signed-off-by: Kan Liang <kan.liang@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 41 +++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 2b11405..ee1f0b2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8960,6 +8960,44 @@ static netdev_features_t i40e_features_check(struct sk_buff *skb,
 	return features;
 }
 
+#ifdef CONFIG_NETPOLICY
+
+#define NET_POLICY_NOT_SUPPORT	-2
+#define NET_POLICY_END		-3
+static int policy_param[NET_POLICY_MAX + 1][2] = {
+	/* rx-usec, tx-usec */
+	{0, 0},
+
+	{NET_POLICY_END, NET_POLICY_END},
+};
+
+/**
+ * i40e_ndo_netpolicy_init
+ * @dev: the net device pointer
+ * @info: netpolicy info which need to be updated
+ *
+ * Init and update available policy on i40e driver
+ * Returns 0 on success, negative on failure
+ */
+static int i40e_ndo_netpolicy_init(struct net_device *dev,
+				   struct netpolicy_info *info)
+{
+	int i;
+
+	for (i = 0; i < NET_POLICY_MAX; i++) {
+		if ((policy_param[i][0] == NET_POLICY_END) &&
+		    (policy_param[i][1] == NET_POLICY_END))
+			break;
+
+		if ((policy_param[i][0] != NET_POLICY_NOT_SUPPORT) &&
+		    (policy_param[i][1] != NET_POLICY_NOT_SUPPORT))
+			set_bit(i, info->avail_policy);
+	}
+
+	return 0;
+}
+#endif /* CONFIG_NETPOLICY */
+
 static const struct net_device_ops i40e_netdev_ops = {
 	.ndo_open		= i40e_open,
 	.ndo_stop		= i40e_close,
@@ -8996,6 +9034,9 @@ static const struct net_device_ops i40e_netdev_ops = {
 	.ndo_features_check	= i40e_features_check,
 	.ndo_bridge_getlink	= i40e_ndo_bridge_getlink,
 	.ndo_bridge_setlink	= i40e_ndo_bridge_setlink,
+#ifdef CONFIG_NETPOLICY
+	.ndo_netpolicy_init	= i40e_ndo_netpolicy_init,
+#endif /* CONFIG_NETPOLICY */
 };
 
 /**
-- 
2.5.5