At this point I think you should invest time in reading and understanding code instead of asking more questions. I have already answered many questions.
On Mon, Sep 15, 2014 at 05:55:01PM +0530, Saloni Jain wrote: > It would be great help if someone could provide the inputs asap. > Thanks in advance for your inputs and suggestions. > > Thanks and Regards, > Saloni Jain > Tata Consultancy Services > Mailto: saloni.j...@tcs.com > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Consulting > ____________________________________________ > > > > -----Forwarded by Saloni Jain/DEL/TCS on 09/15/2014 05:51PM ----- > To: Ben Pfaff <b...@nicira.com>, dev@openvswitch.org > From: Saloni Jain/DEL/TCS > Date: 09/12/2014 05:00PM > Cc: Deepankar Gupta <deepankar.gu...@tcs.com>, Hiteshi Madan > <hiteshi.ma...@tcs.com>, Sanjay6 Singh <sanjay6.si...@tcs.com> > Subject: Re: [ovs-dev] Openflow 1.4: Eviction mechanism implementation > > Hi Ben/Team, > > >?I would enable eviction if it is configured through the database or through > >the OpenFlow connection. > > In current implementation, to enable eviction using create table ... > overflow-policy=evict, oftable_enable_eviction() in ofproto.c is called which > sets table->eviction fields. > > I've been trying to do the same using table-mod command implementation but > haven't been successful. It would be of great help if you could point me to > some piece of code through ?which I can call oftable_enable_eviction() or can > set table->eviction_fields using mod_table command. > > Thanks in advance for you suggestion and support. > > Thanks and Regards, > Saloni Jain > Tata Consultancy Services > Mailto: saloni.j...@tcs.com > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Consulting > ____________________________________________ > > To: Saloni Jain <saloni.j...@tcs.com> > From: Ben Pfaff <b...@nicira.com> > Date: 09/11/2014 11:03PM > Cc: dev@openvswitch.org, Hiteshi Madan <hiteshi.ma...@tcs.com>, Deepankar > Gupta <deepankar.gu...@tcs.com>, Sanjay6 Singh <sanjay6.si...@tcs.com> > Subject: Re: [ovs-dev] Openflow 1.4: Eviction mechanism implementation > > On Thu, Sep 11, 2014 at 05:34:34PM +0530, Saloni Jain wrote: > > 1. As per current implementation, "ovs-vsctl create table ... > > overflow-policy=evict" command, configures openvswitch database(conf.db) > > and sets table structure eviction fields and eviction groups. > > ? > > 2. As per our understanding, the implementation of eviction for importance > > as per openflow specification 1.4, should be in parallel with existing > > functionality, i.e. if eviction for importance is set through mod-table > > command and importance parameter is given by the user,then we must create > > the eviction groups(eviction_group_add_rule) and at the time of eviction, > > obtain the value on basis of importance from this group. > > > > 3. This approach requires table->eviction_field which is set only when > > create table command with overflow-policy=evict is given. > > > > 4. mod-table command for setting the eviction parameter as importance will > > only set the table config parameter as "importance" and will not set the > > table->eviction fields. > > > > 5. So as per our understanding this should be mandatory to first enable > > eviction on the complete table using create table ... overflow-policy=evict > > and then change the mode of eviction as importance using mod-table command. > > I would enable eviction if it is configured through the database or > through the OpenFlow connection. > > > Saloni Jain ---09/11/2014 05:35:44 PM--- Hi Ben/Team, We have started with > the implementation of eviction feature as per openflow specificat > > From: Saloni Jain <saloni.j...@tcs.com> > To: Ben Pfaff <b...@nicira.com>, dev@openvswitch.org > Cc: Deepankar Gupta <deepankar.gu...@tcs.com>, Hiteshi Madan > <hiteshi.ma...@tcs.com>, Sanjay6 Singh <sanjay6.si...@tcs.com> > Date: 09/11/2014 05:35 PM > Subject: Re: [ovs-dev] Openflow 1.4: Eviction mechanism implementation > Sent by: "dev" <dev-boun...@openvswitch.org> > > > > ?Hi Ben/Team, > > We have started with the implementation of eviction feature as per openflow > specification 1.4. Following points needs discussion: > > 1. As per current implementation, "ovs-vsctl create table ... > overflow-policy=evict" command, configures openvswitch database(conf.db) and > sets table structure eviction fields and eviction groups. > ? > 2. As per our understanding, the implementation of eviction for importance as > per openflow specification 1.4, should be in parallel with existing > functionality, i.e. if eviction for importance is set through mod-table > command and importance parameter is given by the user,then we must create the > eviction groups(eviction_group_add_rule) and at the time of eviction, obtain > the value on basis of importance from this group. > > 3. This approach requires table->eviction_field which is set only when create > table command with overflow-policy=evict is given. > > 4. mod-table command for setting the eviction parameter as importance will > only set the table config parameter as "importance" and will not set the > table->eviction fields. > > 5. So as per our understanding this should be mandatory to first enable > eviction on the complete table using create table ... overflow-policy=evict > and then change the mode of eviction as importance using mod-table command. > > Kindly comment on the above mentioned approach. > > Thanks in advance for your suggestions/feedback. > > Thanks and Regards, > Saloni Jain > Tata Consultancy Services > Mailto: saloni.j...@tcs.com > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Consulting > ____________________________________________ > > -----Ben Pfaff <b...@nicira.com> wrote: ----- > To: Saloni Jain <saloni.j...@tcs.com> > From: Ben Pfaff <b...@nicira.com> > Date: 09/09/2014 08:25PM > Cc: dev@openvswitch.org, Hiteshi Madan <hiteshi.ma...@tcs.com>, Deepankar > Gupta <deepankar.gu...@tcs.com> > Subject: Re: [ovs-dev] Openflow 1.4: Eviction mechanism implementation > > On Tue, Sep 09, 2014 at 05:15:06PM +0530, Saloni Jain wrote: > > 1. If eviction on the switch is set on the basis of "lifetime" by > > create table command and then the command for "importance" (mod-table > > command) is given then what will be the basis of eviction in this > > case. Will in this case, eviction will be performed on the basis of > > importance only and not lifetime i.e, second value will overwrite the > > previously configured eviction policy? > > I'd expect it to consider one of those policies first and then use the > other as a tie-breaker, e.g. consider importance first, then use > lifetime for entries of equal importance. > > However, this might turn out to be difficult or not useful, and if so > then using just one of the policies would make sense (probably > importance in this case). > > > 3. If eviction performed on basis of "lifetime" using create table > > command, we can disable it using create table command setting > > overflow-policy=refuse. Similarly if eviction is done for importance > > using mod-table command, then how it can be disabled? > > Also using mod-table to turn the eviction flag off. > =====-----=====-----===== > Notice: The information contained in this e-mail > message and/or attachments to it may contain > confidential or privileged information. If you are > not the intended recipient, any dissemination, use, > review, distribution, printing or copying of the > information contained in this e-mail message > and/or attachments to it are strictly prohibited. If > you have received this communication in error, > please notify us by reply e-mail or telephone and > immediately and permanently delete the message > and any attachments. Thank you > > > _______________________________________________ > dev mailing list > dev@openvswitch.org > http://openvswitch.org/mailman/listinfo/dev _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
