From: martin Zhang
Part1: requirement: dropwatch need work well under docekr instance.
With the docker be widely accepted, there are several net ns on a single
physical host.
some of them may have same IP address. A docker instance is used as a physical
host a few years ago.
the owner of a
From: martin Zhang
hw_stats_list is used to record NAPI state for net device.
Every net device belongs to one net ns.
so every net ns has a list head to record them.
Signed-off-by: martin Zhang
---
net/core/drop_monitor.c | 54 ++---
1 file changed,
From: martin Zhang
move the detail drop stat to per net ns.
A net ns has its per cpu stat.
keep the work under per cpu to send netlink alter message.
all the net ns share a work under a CPU, the work will be scheduled
by any ns, and will send message in all the ns.
Signed-off-by: martin Zhang
From: martin Zhang
1. increase DM netlink version from 2 to 3, as it now support net ns.
2. netns ok become ture.
Signed-off-by: martin Zhang
---
net/core/drop_monitor.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
inde
From: martin Zhang
Every net ns has its own trace_state,
and use a ref to control trace state of whole kernel.
trace_state in struct per_ns_dm_cb:
Just like the previous trace state, record the trace state for
every net ns. Possible values are ON/OFF.
dm_trace_ref: record how many net namespace
From: martin Zhang
move the detail drop stat to per net ns.
A net ns has its per cpu stat.
keep the work under per cpu to send netlink alter message.
all the net ns share a work under a CPU, the work will be scheduled
by any ns, and will send message in all the ns.
Signed-off-by: martin Zhang
From: martin Zhang
hw_stats_list is used to record NAPI state for net device.
Every net device belongs to one net ns.
so every net ns has a list head to record them.
Signed-off-by: martin Zhang
---
net/core/drop_monitor.c | 54 ++---
1 file changed,
From: martin Zhang
This is a serial patch for drop monitor, in order to support net namespace.
Import two struct to support net ns:
1. struct per_ns_dm_cb:
Just like its name, it is used in per net ns.
In this patch it is empty, but in following patch, these field will be added.
a. trace
From: martin Zhang
Every net ns has its own trace_state,
and use a ref to control trace state of whole kernel.
trace_state in struct per_ns_dm_cb:
Just like the previous trace state, record the trace state for
every net ns. Possible values are ON/OFF.
dm_trace_ref: record how many net namespace
From: martin Zhang
1. increase DM netlink version from 2 to 3, as it now support net ns.
2. netns ok become ture.
Signed-off-by: martin Zhang
---
net/core/drop_monitor.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
inde
From: Martin Zhang
1. new skb only need dst and ip address(v4 or v6).
2. skb_copy may need high order pages, which is very rare on long running
server.
Signed-off-by: Junwei Zhang
Signed-off-by: Martin Zhang
---
net/core/neighbour.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
dif
From: Junwei Zhang
The permanent protocol nodes are at the head of the list,
So only need check all these nodes.
No matter the new node is permanent or not,
insert the new node after the last permanent protocol node,
If the new node conflicts with existing permanent node,
return error.
Signed-
From: Junwei Zhang
the permanent protocol nodes are at the head of the list.
So only need check all these nodes.
and insert the new node after the last permanent protocol node,
no matter new node is permanent or not.
If the inserted proto conflicts with existing permanent protocol,
then goto ou
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