From: Jason Gunthorpe <jgg-uk2M96/98Pc@public.gmane.org>
To: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
Cc: 'Bernard Metzler' <bmt-OA+xvbQnYDHMbYB6QlFGEg@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v3 03/13] Attach/detach SoftiWarp to/from network and RDMA subsystem
Date: Tue, 23 Jan 2018 09:43:16 -0700 [thread overview]
Message-ID: <20180123164316.GC30670@ziepe.ca> (raw)
In-Reply-To: <00ff01d39467$f1f31b60$d5d95220$@opengridcomputing.com>
On Tue, Jan 23, 2018 at 10:33:48AM -0600, Steve Wise wrote:
> > +/* Restrict usage of GSO, if hardware peer iwarp is unable to process
> > + * large packets. gso_seg_limit = 1 lets siw send only packets up to
> > + * one real MTU in size, but severly limits maximum bandwidth.
> > + * gso_seg_limit = 0 makes use of GSO (and more than doubles throughput
> > + * for large transfers).
> > + */
> > +const int gso_seg_limit;
> > +
>
> The GSO configuration needs to default to enable interoperation with all
> vendors (and comply with the RFCs). So make it 1 please.
The thing we call GSO in the netstack should be totally transparent on
the wire, so at the very least this needs some additional elaboration.
> Jason, would configfs be a reasonable way to allow tweaking these globals?
Why would we ever even bother to support a mode that is non-conformant
on the wire? Just remove it..
Jason
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next prev parent reply other threads:[~2018-01-23 16:43 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-14 22:35 [PATCH v3 00/13] Request for Comments on SoftiWarp Bernard Metzler
[not found] ` <20180114223603.19961-1-bmt-OA+xvbQnYDHMbYB6QlFGEg@public.gmane.org>
2018-01-14 22:35 ` [PATCH v3 01/13] iWARP wire packet format definition Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 02/13] Main SoftiWarp include file Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 03/13] Attach/detach SoftiWarp to/from network and RDMA subsystem Bernard Metzler
[not found] ` <20180114223603.19961-4-bmt-OA+xvbQnYDHMbYB6QlFGEg@public.gmane.org>
2018-01-23 16:33 ` Steve Wise
2018-01-23 16:43 ` Jason Gunthorpe [this message]
[not found] ` <20180123164316.GC30670-uk2M96/98Pc@public.gmane.org>
2018-01-23 16:58 ` Steve Wise
2018-01-23 17:05 ` Jason Gunthorpe
[not found] ` <20180123170517.GE30670-uk2M96/98Pc@public.gmane.org>
2018-01-23 17:24 ` Steve Wise
2018-01-23 17:28 ` Jason Gunthorpe
[not found] ` <20180123172830.GF30670-uk2M96/98Pc@public.gmane.org>
2018-01-23 17:39 ` Bernard Metzler
2018-01-23 17:42 ` Steve Wise
2018-01-23 17:47 ` Jason Gunthorpe
[not found] ` <20180123174758.GH30670-uk2M96/98Pc@public.gmane.org>
2018-01-23 17:55 ` Steve Wise
2018-01-23 18:21 ` Bernard Metzler
2018-01-23 17:23 ` Bernard Metzler
[not found] ` <OF34749881.4216E578-ON0025821E.005F897C-0025821E.005F8983-8eTO7WVQ4XIsd+ienQ86orlN3bxYEBpz@public.gmane.org>
2018-01-23 17:43 ` Steve Wise
2018-01-23 17:21 ` Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 04/13] SoftiWarp object management Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 05/13] SoftiWarp application interface Bernard Metzler
[not found] ` <20180114223603.19961-6-bmt-OA+xvbQnYDHMbYB6QlFGEg@public.gmane.org>
2018-01-23 17:18 ` Steve Wise
2018-01-23 18:07 ` Bernard Metzler
[not found] ` <OF7390EC15.6C2741F2-ON0025821E.0062D222-0025821E.00639402-8eTO7WVQ4XIsd+ienQ86orlN3bxYEBpz@public.gmane.org>
2018-01-23 18:12 ` Steve Wise
2018-01-14 22:35 ` [PATCH v3 06/13] SoftiWarp connection management Bernard Metzler
[not found] ` <20180114223603.19961-7-bmt-OA+xvbQnYDHMbYB6QlFGEg@public.gmane.org>
2018-01-30 21:27 ` Steve Wise
2018-01-31 17:28 ` Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 07/13] SoftiWarp application buffer management Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 08/13] SoftiWarp Queue Pair methods Bernard Metzler
2018-01-14 22:35 ` [PATCH v3 09/13] SoftiWarp transmit path Bernard Metzler
2018-01-14 22:36 ` [PATCH v3 10/13] SoftiWarp receive path Bernard Metzler
2018-01-14 22:36 ` [PATCH v3 11/13] SoftiWarp Completion Queue methods Bernard Metzler
2018-01-14 22:36 ` [PATCH v3 12/13] SoftiWarp debugging code Bernard Metzler
2018-01-14 22:36 ` [PATCH v3 13/13] Add SoftiWarp to kernel build environment Bernard Metzler
2018-01-17 16:07 ` [PATCH v3 00/13] Request for Comments on SoftiWarp Steve Wise
2018-01-18 7:29 ` Leon Romanovsky
[not found] ` <20180118072958.GW13639-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2018-01-18 17:03 ` Bernard Metzler
[not found] ` <OFC86A1EC5.60F00E9A-ON00258219.005DA6A4-00258219.005DBBB9-8eTO7WVQ4XIsd+ienQ86orlN3bxYEBpz@public.gmane.org>
2018-01-18 21:52 ` Steve Wise
2018-01-23 17:31 ` Bernard Metzler
2018-02-02 14:37 ` Bernard Metzler
[not found] ` <OFD1018BEE.35589194-ON00258228.00505F2B-00258228.00505F31-8eTO7WVQ4XIsd+ienQ86orlN3bxYEBpz@public.gmane.org>
2018-02-02 18:56 ` Jason Gunthorpe
[not found] ` <20180202185640.GC9080-uk2M96/98Pc@public.gmane.org>
2018-02-04 20:08 ` Bernard Metzler
[not found] ` <OFEF72EEE6.7E5C3FA5-ON0025822A.005B18E4-0025822A.006EA4BB-8eTO7WVQ4XIsd+ienQ86orlN3bxYEBpz@public.gmane.org>
2018-02-04 20:39 ` Jason Gunthorpe
2018-01-23 16:31 ` Steve Wise
2018-01-23 16:44 ` Jason Gunthorpe
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