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From: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: "Hefty,
	Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"linux-rdma
	(linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org)"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: Sagi Grimberg <sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	Roi Dayan <roid-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: why flipping responder_resources/initiator_depth?
Date: Sun, 22 Jun 2014 10:42:51 +0300	[thread overview]
Message-ID: <53A688FB.6070600@mellanox.com> (raw)

Hi Sean,

So we just noted that the IB CM @ cm_format_req_event() flips the values 
of RDMA READ initiator-depth and responder-resources advertized in the 
client through the REQ when before it delivers the event to the server 
(and the same is done the other way around in cm_format_rep_event()).

Any special reason for that? specifically, it doesn't comply with our 
common sense (...) and the text in the  rdma_connect/rdma_accept man 
pages http://linux.die.net/man/3/rdma_connect that say:

responder_resources - The maximum number of outstanding RDMA read and 
atomic operations that the local side will accept from the remote side. 
[...]

initiator_depth - The maximum number of outstanding RDMA read and atomic 
operations that the local side will have to the remote side. [...]

Agree? if you do, how do we fix it... the bug is there from day one.

Or.
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             reply	other threads:[~2014-06-22  7:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-22  7:42 Or Gerlitz [this message]
     [not found] ` <53A688FB.6070600-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2014-06-23  5:00   ` why flipping responder_resources/initiator_depth? Hefty, Sean
     [not found]     ` <1828884A29C6694DAF28B7E6B8A823739931CCAD-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-06-23  5:55       ` Or Gerlitz
     [not found]         ` <CAJZOPZKqYiGpxi8bjDu5TBu0G6EX_DjRLvEVhNDTy9L79h6MbQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-06-23 16:49           ` Jason Gunthorpe
     [not found]             ` <20140623164938.GA23697-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2014-06-23 17:38               ` Or Gerlitz
     [not found]                 ` <CAJZOPZJHM1v62kr1_8X2cZXxftNqtC+ngMKNz64eFNFrxyXbAg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-06-23 18:00                   ` Hefty, Sean
     [not found]                     ` <1828884A29C6694DAF28B7E6B8A823739931FEF9-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-06-23 18:34                       ` Jason Gunthorpe
     [not found]                         ` <20140623183455.GA3879-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2014-06-25 20:51                           ` Or Gerlitz
     [not found]                             ` <CAJZOPZ+3HN7YWPUdhXvFopx2JiqtAzG5cfrK+8we92=KzDyDDA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-06-25 21:08                               ` Jason Gunthorpe

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