From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>,
Laurence Oberman
<loberman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 11/11] IB/srp: Prevent mapping failures
Date: Wed, 4 May 2016 11:09:08 +0200 [thread overview]
Message-ID: <20160504090908.GA14787@lst.de> (raw)
In-Reply-To: <5729147C.5000904-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
On Tue, May 03, 2016 at 02:13:32PM -0700, Bart Van Assche wrote:
> > I don't think there is any good reason to printk a warning here -
> > limited hardware is a totally normal thing. E.g. if we merge
> > your RDMA/CM support and someone runs SRP on chelsio hardware they'd
> > probably hit this all the time..
>
> Are you sure? What I see in the v4.6-rc6 tree seems to indicate that Chelsio
> hardware supports large page lists:
You're right - I was confused about the small data sizes it allows
without MRs. Either way, limited hardware on the initiator side is
something totally normal that happens all the time especiall with
SCSI HBAs, so I'd prefer to not spew a warning about it.
--
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next prev parent reply other threads:[~2016-05-04 9:09 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-22 21:11 [PATCH 0/11] More SRP patches for kernel v4.7 Bart Van Assche
[not found] ` <571A936F.7040409-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-22 21:12 ` [PATCH 01/11] IB/srp: Fix a spelling error in a source code comment Bart Van Assche
[not found] ` <571A93AA.9000605-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 9:26 ` Christoph Hellwig
2016-04-22 21:12 ` [PATCH 02/11] IB/srp: Fix a comment Bart Van Assche
[not found] ` <571A93CF.9050506-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 20:52 ` Sagi Grimberg
2016-05-03 9:26 ` Christoph Hellwig
2016-04-22 21:13 ` [PATCH 03/11] IB/srp: Document srp_map_data() return value Bart Van Assche
[not found] ` <571A93E5.7030807-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 9:27 ` Christoph Hellwig
2016-04-22 21:13 ` [PATCH 04/11] IB/srp: Fix srp_map_data() error paths Bart Van Assche
[not found] ` <571A93FF.8020102-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 20:53 ` Sagi Grimberg
2016-05-03 9:28 ` Christoph Hellwig
2016-04-22 21:13 ` [PATCH 05/11] IB/srp: Introduce target->mr_pool_size Bart Van Assche
[not found] ` <571A9415.4090002-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 9:28 ` Christoph Hellwig
2016-04-22 21:14 ` [PATCH 06/11] IB/srp: Avoid that mapping failure triggers an infinite loop Bart Van Assche
[not found] ` <571A9427.8010306-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 9:29 ` Christoph Hellwig
2016-04-22 21:14 ` [PATCH 07/11] IB/srp: Move code out of a loop Bart Van Assche
[not found] ` <571A9443.6000600-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 21:00 ` Sagi Grimberg
2016-05-03 9:29 ` Christoph Hellwig
2016-04-22 21:15 ` [PATCH 08/11] IB/srp: Move common code into the caller Bart Van Assche
[not found] ` <571A9458.3050904-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 21:00 ` Sagi Grimberg
2016-05-03 9:29 ` Christoph Hellwig
2016-04-22 21:15 ` [PATCH 09/11] IB/srp: Fix a NULL pointer dereference Bart Van Assche
[not found] ` <571A9472.5050202-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 21:04 ` Sagi Grimberg
[not found] ` <571FD7F4.4090006-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-04-27 6:20 ` Leon Romanovsky
[not found] ` <20160427062053.GK7974-2ukJVAZIZ/Y@public.gmane.org>
2016-04-27 14:22 ` Bart Van Assche
2016-04-27 15:39 ` Bart Van Assche
2016-04-27 19:50 ` Bart Van Assche
2016-05-03 9:30 ` Christoph Hellwig
[not found] ` <20160503093032.GJ19931-jcswGhMUV9g@public.gmane.org>
2016-05-03 20:57 ` Bart Van Assche
[not found] ` <5729109E.6040500-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 21:01 ` Laurence Oberman
2016-04-22 21:16 ` [PATCH 10/11] IB/srp: Do not register memory if register_always = -1 Bart Van Assche
[not found] ` <571A9490.9010003-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 9:30 ` Christoph Hellwig
2016-04-22 21:16 ` [PATCH 11/11] IB/srp: Prevent mapping failures Bart Van Assche
[not found] ` <571A94AF.7000609-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-23 22:12 ` Laurence Oberman
2016-04-24 8:35 ` Leon Romanovsky
[not found] ` <20160424083538.GF7974-2ukJVAZIZ/Y@public.gmane.org>
2016-04-24 22:44 ` Laurence Oberman
2016-04-25 0:48 ` Bart Van Assche
[not found] ` <571D6975.2020905-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-25 5:54 ` Leon Romanovsky
[not found] ` <20160425055433.GG7974-2ukJVAZIZ/Y@public.gmane.org>
2016-04-25 9:46 ` Sagi Grimberg
[not found] ` <571DE793.6090705-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-04-25 15:53 ` Leon Romanovsky
[not found] ` <20160425155320.GH7974-2ukJVAZIZ/Y@public.gmane.org>
2016-04-25 16:16 ` Bart Van Assche
[not found] ` <571E42D2.70705-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-04-26 14:12 ` Leon Romanovsky
[not found] ` <20160426141229.GI7974-2ukJVAZIZ/Y@public.gmane.org>
2016-04-26 21:08 ` Sagi Grimberg
[not found] ` <571FD8D3.1060403-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-04-26 23:10 ` Bart Van Assche
2016-04-26 21:06 ` Sagi Grimberg
2016-05-03 9:33 ` Christoph Hellwig
[not found] ` <20160503093307.GL19931-jcswGhMUV9g@public.gmane.org>
2016-05-03 21:13 ` Bart Van Assche
[not found] ` <5729147C.5000904-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-03 21:23 ` Laurence Oberman
2016-05-04 9:09 ` Christoph Hellwig [this message]
[not found] ` <20160504090908.GA14787-jcswGhMUV9g@public.gmane.org>
2016-05-04 16:17 ` Bart Van Assche
2016-05-04 23:44 ` Bart Van Assche
[not found] ` <572A8975.9060606-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-05 14:06 ` Christoph Hellwig
[not found] ` <20160505140616.GA15000-jcswGhMUV9g@public.gmane.org>
2016-05-05 19:50 ` Bart Van Assche
2016-05-05 19:58 ` Laurence Oberman
[not found] ` <2102017158.34060891.1462478304470.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-05-05 20:14 ` Bart Van Assche
[not found] ` <572BA98F.4090109-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-05 20:17 ` Bart Van Assche
[not found] ` <572BAA6F.1060607-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-05 20:55 ` Laurence Oberman
[not found] ` <804753248.34153510.1462481756460.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-05-05 21:40 ` Bart Van Assche
[not found] ` <572BBDC0.5070205-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-05 22:01 ` Laurence Oberman
[not found] ` <1133135399.34245490.1462485666601.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-05-05 22:46 ` Bart Van Assche
[not found] ` <572BCD59.7010701-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2016-05-09 22:50 ` Laurence Oberman
[not found] ` <169904890.34764265.1462834206901.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-05-09 22:55 ` Bart Van Assche
2016-05-05 20:44 ` [PATCH 0/11] More SRP patches for kernel v4.7 Doug Ledford
[not found] ` <f406cd39-c6dc-d458-0ab0-c400fdd5b243-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-05-05 20:50 ` Bart Van Assche
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