From: kan.liang@intel.com
To: davem@davemloft.net, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Cc: jeffrey.t.kirsher@intel.com, mingo@redhat.com,
peterz@infradead.org, kuznet@ms2.inr.ac.ru, jmorris@namei.org,
yoshfuji@linux-ipv6.org, kaber@trash.net,
akpm@linux-foundation.org, keescook@chromium.org,
viro@zeniv.linux.org.uk, gorcunov@openvz.org,
john.stultz@linaro.org, aduyck@mirantis.com, ben@decadent.org.uk,
decot@googlers.com, fw@strlen.de, alexander.duyck@gmail.com,
daniel@iogearbox.net, tom@herbertland.com, rdunlap@infradead.org,
xiyou.wangcong@gmail.com, hannes@stressinduktion.org,
stephen@networkplumber.org, alexei.starovoitov@gmail.com,
jesse.brandeburg@intel.com, andi@firstfloor.org,
Kan Liang <kan.liang@intel.com>
Subject: [RFC V3 PATCH 14/26] net/netpolicy: handle channel changes
Date: Mon, 12 Sep 2016 07:55:47 -0700 [thread overview]
Message-ID: <1473692159-4017-15-git-send-email-kan.liang@intel.com> (raw)
In-Reply-To: <1473692159-4017-1-git-send-email-kan.liang@intel.com>
From: Kan Liang <kan.liang@intel.com>
User can uses ethtool to set the channel number. This patch handles the
channel changes by rebuilding the object list.
Signed-off-by: Kan Liang <kan.liang@intel.com>
---
include/linux/netpolicy.h | 8 ++++++++
net/core/ethtool.c | 8 +++++++-
net/core/netpolicy.c | 1 +
3 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/include/linux/netpolicy.h b/include/linux/netpolicy.h
index f60331d..d6ba9f6 100644
--- a/include/linux/netpolicy.h
+++ b/include/linux/netpolicy.h
@@ -80,4 +80,12 @@ struct netpolicy_info {
struct list_head obj_list[NETPOLICY_RXTX][NET_POLICY_MAX];
};
+#ifdef CONFIG_NETPOLICY
+extern void update_netpolicy_sys_map(void);
+#else
+static inline void update_netpolicy_sys_map(void)
+{
+}
+#endif
+
#endif /*__LINUX_NETPOLICY_H*/
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 9774898..e1f8bd0 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1703,6 +1703,7 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
{
struct ethtool_channels channels, max;
u32 max_rx_in_use = 0;
+ int ret;
if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
return -EOPNOTSUPP;
@@ -1726,7 +1727,12 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
(channels.combined_count + channels.rx_count) <= max_rx_in_use)
return -EINVAL;
- return dev->ethtool_ops->set_channels(dev, &channels);
+ ret = dev->ethtool_ops->set_channels(dev, &channels);
+#ifdef CONFIG_NETPOLICY
+ if (!ret)
+ update_netpolicy_sys_map();
+#endif
+ return ret;
}
static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
diff --git a/net/core/netpolicy.c b/net/core/netpolicy.c
index 3bf0a44..a739ac7 100644
--- a/net/core/netpolicy.c
+++ b/net/core/netpolicy.c
@@ -893,6 +893,7 @@ unlock:
}
}
}
+EXPORT_SYMBOL(update_netpolicy_sys_map);
static int netpolicy_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
--
2.5.5
next prev parent reply other threads:[~2016-09-12 14:56 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 14:55 [RFC V3 PATCH 00/26] Kernel NET policy kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 01/26] net: introduce " kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 02/26] net/netpolicy: init " kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 03/26] net/netpolicy: get device queue irq information kan.liang
2016-09-12 16:48 ` Sergei Shtylyov
2016-09-13 12:23 ` Liang, Kan
2016-09-13 13:14 ` Alexander Duyck
2016-09-13 13:22 ` Liang, Kan
2016-09-12 14:55 ` [RFC V3 PATCH 04/26] net/netpolicy: get CPU information kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 05/26] net/netpolicy: create CPU and queue mapping kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 06/26] net/netpolicy: set and remove IRQ affinity kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 07/26] net/netpolicy: enable and disable NET policy kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 08/26] net/netpolicy: introduce NET policy object kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 09/26] net/netpolicy: set NET policy by policy name kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 10/26] net/netpolicy: add three new NET policies kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 11/26] net/netpolicy: add MIX policy kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 12/26] net/netpolicy: NET device hotplug kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 13/26] net/netpolicy: support CPU hotplug kan.liang
2016-09-12 14:55 ` kan.liang [this message]
2016-09-12 14:55 ` [RFC V3 PATCH 15/26] net/netpolicy: implement netpolicy register kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 16/26] net/netpolicy: introduce per socket netpolicy kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 17/26] net/netpolicy: introduce netpolicy_pick_queue kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 18/26] net/netpolicy: set tx queues according to policy kan.liang
2016-09-12 20:23 ` Tom Herbert
2016-09-13 12:22 ` Liang, Kan
2016-09-12 14:55 ` [RFC V3 PATCH 19/26] net/netpolicy: tc bpf extension to pick Tx queue kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 20/26] net/netpolicy: set Rx queues according to policy kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 21/26] net/netpolicy: introduce per task net policy kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 22/26] net/netpolicy: set per task policy by proc kan.liang
2016-09-12 17:01 ` Sergei Shtylyov
2016-09-12 14:55 ` [RFC V3 PATCH 23/26] net/netpolicy: fast path for finding the queues kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 24/26] net/netpolicy: optimize for queue pair kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 25/26] net/netpolicy: limit the total record number kan.liang
2016-09-12 14:55 ` [RFC V3 PATCH 26/26] Documentation/networking: Document NET policy kan.liang
2016-09-12 15:38 ` [RFC V3 PATCH 00/26] Kernel " Florian Westphal
2016-09-12 17:21 ` Cong Wang
2016-09-12 15:52 ` Eric Dumazet
2016-09-19 20:39 ` Stephen Hemminger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1473692159-4017-15-git-send-email-kan.liang@intel.com \
--to=kan.liang@intel.com \
--cc=aduyck@mirantis.com \
--cc=akpm@linux-foundation.org \
--cc=alexander.duyck@gmail.com \
--cc=alexei.starovoitov@gmail.com \
--cc=andi@firstfloor.org \
--cc=ben@decadent.org.uk \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=decot@googlers.com \
--cc=fw@strlen.de \
--cc=gorcunov@openvz.org \
--cc=hannes@stressinduktion.org \
--cc=jeffrey.t.kirsher@intel.com \
--cc=jesse.brandeburg@intel.com \
--cc=jmorris@namei.org \
--cc=john.stultz@linaro.org \
--cc=kaber@trash.net \
--cc=keescook@chromium.org \
--cc=kuznet@ms2.inr.ac.ru \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=rdunlap@infradead.org \
--cc=stephen@networkplumber.org \
--cc=tom@herbertland.com \
--cc=viro@zeniv.linux.org.uk \
--cc=xiyou.wangcong@gmail.com \
--cc=yoshfuji@linux-ipv6.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).