From: Roland Dreier <rdreier@cisco.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: mshefty@ichips.intel.com, sean.hefty@intel.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
openib-general@openib.org
Subject: Re: [openib-general] Re: [PATCH 6/6] IB: userspace support for RDMA connection manager
Date: Mon, 06 Mar 2006 15:40:56 -0800 [thread overview]
Message-ID: <adapskz3zw7.fsf@cisco.com> (raw)
In-Reply-To: <20060306.145053.129802994.davem@davemloft.net> (David S. Miller's message of "Mon, 06 Mar 2006 14:50:53 -0800 (PST)")
Roland> I should look into getting some niagara machines to test
Roland> with -- with PCIe slots they should actually be good for
Roland> IB testing.
David> You'll be cpu limited until we have Van Jacobson net
David> channels.
For IPoIB maybe but not for native IB which offloads all transport to
the HCA... I'd be surprised if the bottleneck were anywhere other than
the bus, even on niagara.
David> Also, since our existing Linux "generic" MSI code is so
David> riddled with x86'isms (it was written by an Intel person,
David> so this is just the status quo), it will be a while before
David> MSI interrupts are supported on sparc64.
Yeah, I've always wanted to make the MSI stuff generic and handle the
embedded ppc chips that have MSI, but I've never had a good enough
reason to really work on it -- it's just been at the level of "that
would be fun." Now that IBM cares I hope it will get done soon.
Anyway IB works fine with standard INTx interrupts -- MSI is just icing.
The Niagara boxes seem like a fun toy if I can get budget for it --
and 32 threads are probably good for flushing out SMP races.
- R.
next prev parent reply other threads:[~2006-03-06 23:40 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-01 20:03 [PATCH 0/5] Infiniband: connection abstraction Sean Hefty
2006-02-01 20:07 ` [PATCH 1/5] " Sean Hefty
2006-02-01 20:10 ` [PATCH 2/5] " Sean Hefty
2006-02-01 20:15 ` [PATCH 3/5] " Sean Hefty
2006-03-03 21:14 ` [PATCH 3/5] export of ip_dev_find as part of Infiniband " Sean Hefty
2006-02-01 20:18 ` [PATCH 4/5] Infiniband: " Sean Hefty
2006-02-01 20:19 ` [PATCH 5/5] " Sean Hefty
2006-03-03 21:13 ` [PATCH 0/5] " Sean Hefty
2006-03-03 22:53 ` [openib-general] " Roland Dreier
2006-03-06 18:59 ` [PATCH 1/6] IB: common handling for marshalling parameters to/from userspace Sean Hefty
2006-03-19 1:19 ` 2.6.16-rc6-mm2: new RDMA CM EXPORT_SYMBOL's Andrew Morton
2006-03-19 4:11 ` Matthew Frost
2006-03-20 18:32 ` [openib-general] " Sean Hefty
2006-03-20 18:47 ` Arjan van de Ven
2006-03-20 18:47 ` Roland Dreier
2006-03-20 19:18 ` [openib-general] " Sean Hefty
2006-03-06 19:04 ` [PATCH 2/6] IB: match connection requests based on private data Sean Hefty
2006-03-06 22:05 ` [openib-general] " Sean Hefty
2006-03-06 23:29 ` [PATCH 2/6 v2] " Sean Hefty
2006-03-06 19:07 ` [PATCH 3/6] net/IB: export ip_dev_find Sean Hefty
2006-03-06 21:31 ` Roland Dreier
2006-03-06 21:42 ` David S. Miller
2006-03-06 19:10 ` [PATCH 4/6] IB: address translation to map IP to IB addresses (GIDs) Sean Hefty
2006-03-06 23:31 ` [PATCH 4/6 v2] IB: address translation to map IP toIB " Sean Hefty
2006-03-11 1:14 ` Roland Dreier
2006-03-11 6:10 ` Sean Hefty
2006-03-21 20:57 ` Roland Dreier
2006-03-21 21:08 ` [openib-general] " Sean Hefty
2006-03-21 22:39 ` Roland Dreier
2006-03-06 19:18 ` [PATCH 5/6] IB: IP address based RDMA connection manager Sean Hefty
2006-03-06 19:21 ` [PATCH 6/6] IB: userspace support for " Sean Hefty
2006-03-06 21:33 ` Roland Dreier
2006-03-06 21:42 ` [openib-general] " Sean Hefty
2006-03-06 21:58 ` Roland Dreier
2006-03-06 22:28 ` David S. Miller
2006-03-06 22:32 ` Roland Dreier
2006-03-06 22:39 ` David S. Miller
2006-03-06 22:41 ` Roland Dreier
2006-03-06 22:50 ` David S. Miller
2006-03-06 23:40 ` Roland Dreier [this message]
2006-03-07 0:05 ` Bryan O'Sullivan
2006-03-07 0:10 ` Roland Dreier
2006-03-07 0:26 ` David S. Miller
2006-03-06 21:35 ` Roland Dreier
2006-03-06 21:43 ` [openib-general] " Sean Hefty
2006-03-06 23:41 ` [PATCH 6/6 v2] " Sean Hefty
2006-03-22 1:40 ` Roland Dreier
2006-03-22 8:30 ` Michael S. Tsirkin
2006-03-22 15:18 ` Roland Dreier
-- strict thread matches above, loose matches on Subject: below --
2006-03-18 12:40 2.6.16-rc6-mm2 Andrew Morton
2006-03-18 15:10 ` sata_mv success on 2.6.16-rc6-mm2 (was: Re: 2.6.16-rc6-mm2) Sander
2006-03-18 17:25 ` 2.6.16-rc6-mm2: new RDMA CM EXPORT_SYMBOL's Adrian Bunk
2006-03-19 1:44 ` Tom Tucker
2006-03-19 1:57 ` Lee Revell
2006-03-18 18:45 ` [-mm patch] drivers/edac/e752x_edac.c: make sysbus_message static Adrian Bunk
2006-03-18 18:45 ` [-mm patch] drivers/scsi/aic7xxx/aic79xx_core.c: make ahd_match_scb() static Adrian Bunk
2006-03-18 18:45 ` [-mm patch] nfs4proc.c: make _nfs4_proc_setclientid_confirm() static Adrian Bunk
2006-03-18 18:45 ` [-mm patch] net/core/scm.c: make scm_detach_fds() static Adrian Bunk
2006-03-18 20:21 ` 2.6.16-rc6-mm2 Rafael J. Wysocki
2006-03-18 20:54 ` 2.6.16-rc6-mm2 Andrew Morton
2006-03-18 21:24 ` 2.6.16-rc6-mm2 Rafael J. Wysocki
2006-03-18 21:25 ` Emulex IP over FC support shogunx
2006-03-19 23:03 ` 2.6.16-rc6-mm2 - BUG when flushing a ramdisk Neil Brown
2006-03-19 1:09 ` 2.6.16-rc6-mm2 uninitialized online_policy_cpus.bits[0] Con Kolivas
2006-03-19 1:29 ` Con Kolivas
2006-03-19 1:35 ` Andrew Morton
2006-03-19 2:37 ` Con Kolivas
2006-03-19 6:13 ` Venkatesh Pallipadi
2006-03-20 3:26 ` New Areca driver in 2.6.16-rc6-mm2 Dax Kelson
2006-03-21 23:49 ` Chris Caputo
2006-03-22 3:37 ` Matti Aarnio
2006-03-22 3:56 ` Randy.Dunlap
2006-03-22 3:56 ` Al Viro
2006-03-22 4:41 ` erich
2006-03-20 13:02 ` RAID5 grow success (was: Re: 2.6.16-rc6-mm2) Sander
2006-03-20 13:33 ` Some sata_mv error messages " Sander
2006-03-21 1:02 ` Some sata_mv error messages Jeff Garzik
2006-03-21 2:25 ` Dave Jones
2006-03-21 2:35 ` Jeff Garzik
2006-03-21 16:06 ` Peter Jones
2006-03-21 4:48 ` Mark Lord
2006-03-21 7:28 ` Sander
2006-03-21 19:33 ` Denis Leroy
2006-03-21 19:37 ` Jeff Garzik
2006-03-21 19:42 ` Mark Lord
2006-03-21 7:26 ` Sander
2006-03-21 20:27 ` 2.6.16-rc6-mm2: reiser4 BUG when unmounting fs Laurent Riffard
2006-03-21 20:38 ` Laurent Riffard
2006-03-22 7:43 ` Vladimir V. Saveliev
2006-03-22 18:38 ` Laurent Riffard
2006-03-23 17:32 ` Alexander Gran
2006-03-21 22:54 ` 2.6.16-rc6-mm2: Why is CONFIG_MIGRATION available for everyone? Adrian Bunk
2006-03-21 22:57 ` Christoph Lameter
2006-03-21 23:40 ` Christoph Lameter
2006-03-22 8:41 ` 2.6.16-rc6-mm2 J.A. Magallon
2006-03-22 8:48 ` 2.6.16-rc6-mm2 Andrew Morton
2006-03-22 10:40 ` [2.6 patch] kernel/time.c: remove unused pps_* variables Adrian Bunk
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