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From: Eli Cohen <eli-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
To: "Hefty, Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Yann Droneaud <ydroneaud-RlY5vtjFyJ3QT0dZR+AlfA@public.gmane.org>,
	"cait-DpaxOq6QOWMAvxtiuMwx3w@public.gmane.org"
	<cait-DpaxOq6QOWMAvxtiuMwx3w@public.gmane.org>,
	"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: rdma_create_qp() and max_send_wr
Date: Thu, 19 May 2011 22:37:48 +0300	[thread overview]
Message-ID: <20110519193748.GE2659@mtldesk30> (raw)
In-Reply-To: <1828884A29C6694DAF28B7E6B8A82373FF57-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>

On Thu, May 19, 2011 at 06:06:03PM +0000, Hefty, Sean wrote:
> 
> max_qp_wr does not distinguish between max send or receive or indicate if those values should be the same.  IMO, Setting
> 
> max_qp_wr = max(send wr, recv wr)
> 
> makes more sense than
> 
> max_qp_wr = min(send wr, recv wr)
> 
> The maximum values reported are not meant to be guaranteed minimums.
> 

Here's what the spec says:
The maximum number of outstanding work requests on any
Work Queue supported by this HCA.

I think the text should be interpreted as you said:
max_qp_wr = max(send wr, recv wr)

But I also don't find much use for the value returned by query HCA.



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  parent reply	other threads:[~2011-05-19 19:37 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20110421115323.48b52fb35c6f209c51bccbb9807b6df0.f623dc4952.wbe@email17.secureserver.net>
     [not found] ` <20110421115323.48b52fb35c6f209c51bccbb9807b6df0.f623dc4952.wbe-L1BP6xego3TShzhksYgB+AejPw4fNl8p@public.gmane.org>
2011-04-22 10:20   ` rdma_create_qp() and max_send_wr Yann Droneaud
     [not found]     ` <1303467645.2243.47.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-04-22 10:37       ` Yann Droneaud
2011-05-19  6:07       ` Eli Cohen
2011-05-19  9:17         ` Yann Droneaud
     [not found]           ` <1305796637.2359.6.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-05-19  9:34             ` Eli Cohen
2011-05-19 10:50               ` Yann Droneaud
     [not found]                 ` <1305802216.2359.11.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-05-19 14:25                   ` Hefty, Sean
     [not found]                     ` <1828884A29C6694DAF28B7E6B8A82373FE8B-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2011-05-19 14:45                       ` Yann Droneaud
     [not found]                         ` <1305816321.2359.15.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-05-19 15:03                           ` Yann Droneaud
     [not found]                             ` <1305817426.2359.23.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-05-19 15:46                               ` Eli Cohen
2011-05-19 16:59                                 ` Yann Droneaud
     [not found]                                   ` <1305824364.2359.37.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-05-19 17:13                                     ` Yann Droneaud
2011-05-19 18:06                                     ` Hefty, Sean
     [not found]                                       ` <1828884A29C6694DAF28B7E6B8A82373FF57-P5GAC/sN6hmkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2011-05-19 19:37                                         ` Eli Cohen [this message]
2011-04-21 16:44 Yann Droneaud
     [not found] ` <1303404264.2243.19.camel-H/AUWmsJYVeqvyCYKW+Xr6xOck334EZe@public.gmane.org>
2011-04-21 18:35   ` Roland Dreier
     [not found]     ` <BANLkTikUOv3mtgb3x_vbbk845_36fu1QhA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-05-22  6:46       ` Or Gerlitz
     [not found]         ` <4DD8B13D.4070802-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2011-05-22  8:21           ` Eli Cohen

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