From: Jinpu Wang <jinpu.wang@profitbricks.com>
To: Bart Van Assche <Bart.VanAssche@wdc.com>
Cc: "roman.penyaev@profitbricks.com" <roman.penyaev@profitbricks.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"danil.kipnis@profitbricks.com" <danil.kipnis@profitbricks.com>,
"hch@infradead.org" <hch@infradead.org>,
"ogerlitz@mellanox.com" <ogerlitz@mellanox.com>,
"axboe@kernel.dk" <axboe@kernel.dk>,
"sagi@grimberg.me" <sagi@grimberg.me>
Subject: Re: [PATCH 00/24] InfiniBand Transport (IBTRS) and Network Block Device (IBNBD)
Date: Mon, 5 Feb 2018 09:56:56 +0100 [thread overview]
Message-ID: <CAMGffEkhqR9Z5bkMfnVn8an2OUM8k+jYoR5EFdtv3k9en1bh=w@mail.gmail.com> (raw)
In-Reply-To: <1517591106.2675.28.camel@sandisk.com>
Hi Bart,
My another 2 cents:)
On Fri, Feb 2, 2018 at 6:05 PM, Bart Van Assche <Bart.VanAssche@wdc.com> wrote:
> On Fri, 2018-02-02 at 15:08 +0100, Roman Pen wrote:
>> o Simple configuration of IBNBD:
>> - Server side is completely passive: volumes do not need to be
>> explicitly exported.
>
> That sounds like a security hole? I think the ability to configure whether or
> not an initiator is allowed to log in is essential and also which volumes an
> initiator has access to.
Our design target for well controlled production environment, so
security is handle in other layer.
On server side, admin can set the dev_search_path in module parameter
to set parent directory,
this will concatenate with the path client send in open message to
open a block device.
>
>> - Only IB port GID and device path needed on client side to map
>> a block device.
>
> I think IP addressing is preferred over GID addressing in RoCE networks.
> Additionally, have you noticed that GUID configuration support has been added
> to the upstream ib_srpt driver? Using GIDs has a very important disadvantage,
> namely that at least in IB networks the prefix will change if the subnet
> manager is reconfigured. Additionally, in IB networks it may happen that the
> target driver is loaded and configured before the GID has been assigned to
> all RDMA ports.
>
> Thanks,
>
> Bart.
Sorry, the above description is not accurate, IBNBD/IBTRS support
GID/IPv4/IPv6 addressing.
We will adjust in next post.
Thanks,
--
Jack Wang
Linux Kernel Developer
next prev parent reply other threads:[~2018-02-05 8:56 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-02 14:08 [PATCH 00/24] InfiniBand Transport (IBTRS) and Network Block Device (IBNBD) Roman Pen
2018-02-02 14:08 ` [PATCH 01/24] ibtrs: public interface header to establish RDMA connections Roman Pen
2018-02-02 14:08 ` [PATCH 02/24] ibtrs: private headers with IBTRS protocol structs and helpers Roman Pen
2018-02-02 14:08 ` [PATCH 03/24] ibtrs: core: lib functions shared between client and server modules Roman Pen
2018-02-05 10:52 ` Sagi Grimberg
2018-02-06 12:01 ` Roman Penyaev
2018-02-06 16:10 ` Jason Gunthorpe
2018-02-07 10:34 ` Roman Penyaev
2018-02-02 14:08 ` [PATCH 04/24] ibtrs: client: private header with client structs and functions Roman Pen
2018-02-05 10:59 ` Sagi Grimberg
2018-02-06 12:23 ` Roman Penyaev
2018-02-02 14:08 ` [PATCH 05/24] ibtrs: client: main functionality Roman Pen
2018-02-02 16:54 ` Bart Van Assche
2018-02-05 13:27 ` Roman Penyaev
2018-02-05 14:14 ` Sagi Grimberg
2018-02-05 17:05 ` Roman Penyaev
2018-02-05 11:19 ` Sagi Grimberg
2018-02-05 14:19 ` Roman Penyaev
2018-02-05 16:24 ` Bart Van Assche
2018-02-02 14:08 ` [PATCH 06/24] ibtrs: client: statistics functions Roman Pen
2018-02-02 14:08 ` [PATCH 07/24] ibtrs: client: sysfs interface functions Roman Pen
2018-02-05 11:20 ` Sagi Grimberg
2018-02-06 12:28 ` Roman Penyaev
2018-02-02 14:08 ` [PATCH 08/24] ibtrs: server: private header with server structs and functions Roman Pen
2018-02-02 14:08 ` [PATCH 09/24] ibtrs: server: main functionality Roman Pen
2018-02-05 11:29 ` Sagi Grimberg
2018-02-06 12:46 ` Roman Penyaev
2018-02-02 14:08 ` [PATCH 10/24] ibtrs: server: statistics functions Roman Pen
2018-02-02 14:08 ` [PATCH 11/24] ibtrs: server: sysfs interface functions Roman Pen
2018-02-02 14:08 ` [PATCH 12/24] ibtrs: include client and server modules into kernel compilation Roman Pen
2018-02-02 14:08 ` [PATCH 13/24] ibtrs: a bit of documentation Roman Pen
2018-02-02 14:08 ` [PATCH 14/24] ibnbd: private headers with IBNBD protocol structs and helpers Roman Pen
2018-02-02 14:08 ` [PATCH 15/24] ibnbd: client: private header with client structs and functions Roman Pen
2018-02-02 14:08 ` [PATCH 16/24] ibnbd: client: main functionality Roman Pen
2018-02-02 15:11 ` Jens Axboe
2018-02-05 12:54 ` Roman Penyaev
2018-02-02 14:08 ` [PATCH 17/24] ibnbd: client: sysfs interface functions Roman Pen
2018-02-02 14:08 ` [PATCH 18/24] ibnbd: server: private header with server structs and functions Roman Pen
2018-02-02 14:08 ` [PATCH 19/24] ibnbd: server: main functionality Roman Pen
2018-02-02 14:09 ` [PATCH 20/24] ibnbd: server: functionality for IO submission to file or block dev Roman Pen
2018-02-02 14:09 ` [PATCH 21/24] ibnbd: server: sysfs interface functions Roman Pen
2018-02-02 14:09 ` [PATCH 22/24] ibnbd: include client and server modules into kernel compilation Roman Pen
2018-02-02 14:09 ` [PATCH 23/24] ibnbd: a bit of documentation Roman Pen
2018-02-02 15:55 ` Bart Van Assche
2018-02-05 13:03 ` Roman Penyaev
2018-02-05 14:16 ` Sagi Grimberg
2018-02-02 14:09 ` [PATCH 24/24] MAINTAINERS: Add maintainer for IBNBD/IBTRS modules Roman Pen
2018-02-02 16:07 ` [PATCH 00/24] InfiniBand Transport (IBTRS) and Network Block Device (IBNBD) Bart Van Assche
2018-02-02 16:40 ` Doug Ledford
2018-02-05 8:45 ` Jinpu Wang
2018-06-04 12:14 ` Danil Kipnis
2018-02-02 17:05 ` Bart Van Assche
2018-02-05 8:56 ` Jinpu Wang [this message]
2018-02-05 11:36 ` Sagi Grimberg
2018-02-05 13:38 ` Danil Kipnis
2018-02-05 14:17 ` Sagi Grimberg
2018-02-05 16:40 ` Danil Kipnis
2018-02-05 18:38 ` Bart Van Assche
2018-02-06 9:44 ` Danil Kipnis
2018-02-06 15:35 ` Bart Van Assche
2018-02-05 16:16 ` Bart Van Assche
2018-02-05 16:36 ` Jinpu Wang
2018-02-07 16:35 ` Christopher Lameter
2018-02-07 17:18 ` Roman Penyaev
2018-02-07 17:32 ` Bart Van Assche
2018-02-08 17:38 ` Danil Kipnis
2018-02-08 18:09 ` Bart Van Assche
2018-06-04 12:27 ` Danil Kipnis
2018-02-05 12:16 ` Sagi Grimberg
2018-02-05 12:30 ` Sagi Grimberg
2018-02-07 13:06 ` Roman Penyaev
2018-02-05 16:58 ` Bart Van Assche
2018-02-05 17:16 ` Roman Penyaev
2018-02-05 17:20 ` Bart Van Assche
2018-02-06 11:47 ` Roman Penyaev
2018-02-06 13:12 ` Roman Penyaev
2018-02-06 16:01 ` Bart Van Assche
2018-02-07 12:57 ` Roman Penyaev
2018-02-07 16:35 ` Bart Van Assche
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