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Date: Fri, 27 Mar 2015 13:16:31 -0400 From: "ira.weiny" <ira.weiny@...el.com> To: Jason Gunthorpe <jgunthorpe@...idianresearch.com> Cc: Michael Wang <yun.wang@...fitbricks.com>, Roland Dreier <roland@...nel.org>, Sean Hefty <sean.hefty@...el.com>, Hal Rosenstock <hal.rosenstock@...il.com>, linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org, netdev@...r.kernel.org, "J. Bruce Fields" <bfields@...ldses.org>, Trond Myklebust <trond.myklebust@...marydata.com>, "David S. Miller" <davem@...emloft.net>, Or Gerlitz <ogerlitz@...lanox.com>, Moni Shoua <monis@...lanox.com>, PJ Waskiewicz <pj.waskiewicz@...idfire.com>, Tatyana Nikolova <Tatyana.E.Nikolova@...el.com>, Yan Burman <yanb@...lanox.com>, Jack Morgenstein <jackm@....mellanox.co.il>, Bart Van Assche <bvanassche@....org>, Yann Droneaud <ydroneaud@...eya.com>, Colin Ian King <colin.king@...onical.com>, Majd Dibbiny <majd@...lanox.com>, Jiri Kosina <jkosina@...e.cz>, Matan Barak <matanb@...lanox.com>, Alex Estrin <alex.estrin@...el.com>, Doug Ledford <dledford@...hat.com>, Eric Dumazet <edumazet@...gle.com>, Erez Shitrit <erezsh@...lanox.com>, Sagi Grimberg <sagig@...lanox.com>, Haggai Eran <haggaie@...lanox.com>, Shachar Raindel <raindel@...lanox.com>, Mike Marciniszyn <mike.marciniszyn@...el.com>, Steve Wise <swise@...ngridcomputing.com>, Tom Tucker <tom@....us>, Chuck Lever <chuck.lever@...cle.com> Subject: Re: [RFC PATCH 08/11] IB/Verbs: Use management helper has_iwarp() for, iwarp-check On Fri, Mar 27, 2015 at 10:13:19AM -0600, Jason Gunthorpe wrote: > On Fri, Mar 27, 2015 at 04:47:36PM +0100, Michael Wang wrote: > > > > Introduce helper has_iwarp() to help us check if an IB device > > support IWARP protocol. > > Should probably be !has_rdma_read_sges() > > True if the device can handle more than one SGE entry on a RDMA READ > work request. Isn't this value already provided by the query_device verb? The verbs spec states the Query HCA contains the: "Maximum number of scatter/gather entries per Work Request supported by the HCA." -- Ira > > Jason -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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