linux-toradex.git/net/openvswitch/flow_table.h, branch v3.14.3 Linux kernel for Apalis and Colibri modules openvswitch: Fix kernel panic on ovs_flow_free 2014-02-05T06:21:17+00:00 Andy Zhou azhou@nicira.com 2014-01-21T17:31:04+00:00 e80857cce82da31e41a6599fc888dfc92e0167cc Both mega flow mask's reference counter and per flow table mask list should only be accessed when holding ovs_mutex() lock. However this is not true with ovs_flow_table_flush(). The patch fixes this bug. Reported-by: Joe Stringer <joestringer@nicira.com> Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
Both mega flow mask's reference counter and per flow table mask list
should only be accessed when holding ovs_mutex() lock. However
this is not true with ovs_flow_table_flush(). The patch fixes this bug.

Reported-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
openvswitch: Per cpu flow stats. 2014-01-06T23:52:24+00:00 Pravin B Shelar pshelar@nicira.com 2013-10-30T00:22:21+00:00 e298e505700604c97e6a9edb21cebb080bdb91f6 With mega flow implementation ovs flow can be shared between multiple CPUs which makes stats updates highly contended operation. This patch uses per-CPU stats in cases where a flow is likely to be shared (if there is a wildcard in the 5-tuple and therefore likely to be spread by RSS). In other situations, it uses the current strategy, saving memory and allocation time. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
With mega flow implementation ovs flow can be shared between
multiple CPUs which makes stats updates highly contended
operation. This patch uses per-CPU stats in cases where a flow
is likely to be shared (if there is a wildcard in the 5-tuple
and therefore likely to be spread by RSS). In other situations,
it uses the current strategy, saving memory and allocation time.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
openvswitch: Change ovs_flow_tbl_lookup_xx() APIs 2014-01-06T23:51:41+00:00 Andy Zhou azhou@nicira.com 2013-11-25T18:42:46+00:00 5bb506324d150578afadd10c3198ef5b29f5876b API changes only for code readability. No functional chnages. This patch removes the underscored version. Added a new API ovs_flow_tbl_lookup_stats() that returns the n_mask_hits. Reported by: Ben Pfaff <blp@nicira.com> Reviewed-by: Thomas Graf <tgraf@redhat.com> Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
API changes only for code readability. No functional chnages.

This patch removes the underscored version. Added a new API
ovs_flow_tbl_lookup_stats() that returns the n_mask_hits.

Reported by: Ben Pfaff <blp@nicira.com>
Reviewed-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
openvswitch: collect mega flow mask stats 2013-10-22T17:42:46+00:00 Andy Zhou azhou@nicira.com 2013-10-22T17:42:46+00:00 1bd7116f1cb833c998cddb6b188df463342069d8 Collect mega flow mask stats. ovs-dpctl show command can be used to display them for debugging and performance tuning. Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
Collect mega flow mask stats. ovs-dpctl show command can be used to
display them for debugging and performance tuning.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
openvswitch: Simplify mega-flow APIs. 2013-10-04T07:18:30+00:00 Pravin B Shelar pshelar@nicira.com 2013-10-04T07:17:42+00:00 618ed0c805b64c820279f50732110ab873221c3b Hides mega-flow implementation in flow_table.c rather than datapath.c. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
Hides mega-flow implementation in flow_table.c rather than
datapath.c.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
openvswitch: Move mega-flow list out of rehashing struct. 2013-10-04T07:18:26+00:00 Pravin B Shelar pshelar@nicira.com 2013-10-04T07:14:23+00:00 b637e4988c2d689bb43f943a5af0e684a4981159 ovs-flow rehash does not touch mega flow list. Following patch moves it dp struct datapath. Avoid one extra indirection for accessing mega-flow list head on every packet receive. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
ovs-flow rehash does not touch mega flow list. Following patch
moves it dp struct datapath.  Avoid one extra indirection for
accessing mega-flow list head on every packet receive.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
openvswitch: Restructure datapath.c and flow.c 2013-10-04T01:16:47+00:00 Pravin B Shelar pshelar@nicira.com 2013-10-04T01:16:47+00:00 e64457191a259537bbbfaebeba9a8043786af96f Over the time datapath.c and flow.c has became pretty large files. Following patch restructures functionality of component into three different components: flow.c: contains flow extract. flow_netlink.c: netlink flow api. flow_table.c: flow table api. This patch restructures code without changing logic. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com> 
Over the time datapath.c and flow.c has became pretty large files.
Following patch restructures functionality of component into three
different components:

flow.c: contains flow extract.
flow_netlink.c: netlink flow api.
flow_table.c: flow table api.

This patch restructures code without changing logic.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>