| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
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netflow_flow_clear() asserted that no packets or bytes were included
in the statistics for the flow being cleared. Before threading Open
vSwitch, this assertion was always true because netflow_expire() was
always called before calling netflow_flow_clear(). Since Open
vSwitch was threaded, however, it was possible that a packet arrived
after netflow_expire() but before netflow_flow_clear(), since each of
these function separately took the netflow mutex.
This commit fixes the problem by merging netflow_expire() into
netflow_flow_clear(), under a single acquisition of the netflow
mutex.
Signed-off-by: Anoob Soman <anoob.soman@citrix.com>
[blp@nicira.com modified the patch to remove netflow_expire() and
rewrote the commit message]
Signed-off-by: Ben Pfaff <blp@nicira.com>
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The 'flow' parameter is not modified, so mark it const.
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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Useful in future patches.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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In future patches upcall handler threads will need to update netflow.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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The netflow code has its tentacles all over the ofproto-dpif module.
This is fine today, but in future facets, which correspond roughly to
netflow_flows, will be retired. In preparation, this patch hides as
much implementation detail as possible inside the netflow module.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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Widen TCP flags handling from 7 bits (uint8_t) to 12 bits (uint16_t).
The kernel interface remains at 8 bits, which makes no functional
difference now, as none of the higher bits is currently of interest
to the userspace.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
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NetFlow v5 only supports IPv4, so don't bother un-wildcarding
non-IPv4 packets.
Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
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Until now, datapath ports and openflow ports were both represented by
unsigned integers of various sizes. With implicit conversions, etc., it is
easy to mix them up and use one where the other is expected. This commit
creates two typedefs, ofp_port_t and odp_port_t. Both of these two types
are marked by "__attribute__((bitwise))" so that sparse can be used to
detect any misuse.
Signed-off-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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A number of use-cases weren't handled properly when determining what can
be wildcarded for megaflows. This commit both catches additional fields
that cannot be wildcarded and loosens a few other cases.
Bug #17979
Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.
Feature #10593
Signed-off-by: Raju Subramanian <rsubramanian@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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An upcoming commit will introduce code outside of ofproto/netflow.c that
works with NetFlow packets, so we need the protocol definitions in a common
location.
Signed-off-by: Ben Pfaff <blp@nicira.com>
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NetFlow active timeouts were only mixed in with flow expiration for
convenience: both processes need to iterate all the facets. But
an upcoming commit will change flow expiration to work in terms of
a new "subfacet" entity, so they will no longer fit together well.
This change could be seen as an optimization, since NetFlow active
timeouts don't ordinarily have to run as often as flow expiration,
especially when the flow expiration rate is stepped up due to a
large volume of flows.
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This seems cleaner to me: it seems risky to "clear" something that has not
been initialized yet. It's also a super-minor optimization, I suppose.
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Originally, the datapath didn't care about IP TOS at all. Then, to support
NetFlow, we made it keep track of the last-seen IP TOS value on a per-flow
basis. Then, to support OpenFlow 1.0, we added a nw_tos field to
odp_flow_key. We don't need both methods, so this commit drops the
NetFlow-specific tracking.
This introduces a small kernel ABI break: upgrading the kernel module
without upgrading the OVS userspace will mean that NetFlow records will
all show an IP TOS value of 0. I don't consider that to be a serious
problem.
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It's just bizarre to put a static const int in a header file, at least in
C.
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Reported-by: Jean Tourrilhes <jt@hpl.hp.com>
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This fixes a bug originally introduced in commit 763435 "vswitchd:
Initial conversion to database-based configuration." The bug
reversed a less than operator when setting the active timeout field.
Also add a warning if the timeout is set to an invalid value.
CC: Glen Gibb <grg@stanford.edu>
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These names are more meaningful, so we prefer them.
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