From: Max Gurtovoy <maxg@mellanox.com>
To: Logan Gunthorpe <logang@deltatee.com>,
<linux-kernel@vger.kernel.org>, <linux-nvme@lists.infradead.org>,
<linux-block@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
"Keith Busch" <kbusch@kernel.org>, Jens Axboe <axboe@fb.com>,
Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
Stephen Bates <sbates@raithlin.com>
Subject: Re: [PATCH v7 08/14] nvmet-core: allow one host per passthru-ctrl
Date: Thu, 15 Aug 2019 15:36:02 +0300 [thread overview]
Message-ID: <05a74e81-1dbd-725f-1369-5ca5c5918db1@mellanox.com> (raw)
In-Reply-To: <20190801234514.7941-9-logang@deltatee.com>
On 8/2/2019 2:45 AM, Logan Gunthorpe wrote:
> This patch rejects any new connection to the passthru-ctrl if this
> controller is already connected to a different host. At the time of
> allocating the controller we check if the subsys associated with
> the passthru ctrl is already connected to a host and reject it
> if the hostnqn differs.
This is a big limitation.
Are we plan to enable many front-end ctrl's to connect to the single
back-end ctrl in the future ?
I guess it can be incremental to this series.
WARNING: multiple messages have this Message-ID (diff)
From: maxg@mellanox.com (Max Gurtovoy)
Subject: [PATCH v7 08/14] nvmet-core: allow one host per passthru-ctrl
Date: Thu, 15 Aug 2019 15:36:02 +0300 [thread overview]
Message-ID: <05a74e81-1dbd-725f-1369-5ca5c5918db1@mellanox.com> (raw)
In-Reply-To: <20190801234514.7941-9-logang@deltatee.com>
On 8/2/2019 2:45 AM, Logan Gunthorpe wrote:
> This patch rejects any new connection to the passthru-ctrl if this
> controller is already connected to a different host. At the time of
> allocating the controller we check if the subsys associated with
> the passthru ctrl is already connected to a host and reject it
> if the hostnqn differs.
This is a big limitation.
Are we plan to enable many front-end ctrl's to connect to the single
back-end ctrl in the future ?
I guess it can be incremental to this series.
next prev parent reply other threads:[~2019-08-15 12:36 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-01 23:44 [PATCH v7 00/14] nvmet: add target passthru commands support Logan Gunthorpe
2019-08-01 23:44 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 01/14] nvme-core: introduce nvme_ctrl_get_by_path() Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-14 14:20 ` Max Gurtovoy
2019-08-14 14:20 ` Max Gurtovoy
2019-08-15 11:46 ` Max Gurtovoy
2019-08-15 11:46 ` Max Gurtovoy
2019-08-15 15:59 ` Logan Gunthorpe
2019-08-15 15:59 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 02/14] nvme-core: export existing ctrl and ns interfaces Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 03/14] nvmet: add return value to nvmet_add_async_event() Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-14 14:26 ` Max Gurtovoy
2019-08-14 14:26 ` Max Gurtovoy
2019-08-14 16:59 ` Logan Gunthorpe
2019-08-14 16:59 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 04/14] nvmet: make nvmet_copy_ns_identifier() non-static Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-14 14:29 ` Max Gurtovoy
2019-08-14 14:29 ` Max Gurtovoy
2019-08-15 7:15 ` Chaitanya Kulkarni
2019-08-15 7:15 ` Chaitanya Kulkarni
2019-08-01 23:45 ` [PATCH v7 05/14] nvmet-passthru: update KConfig with config passthru option Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-14 14:31 ` Max Gurtovoy
2019-08-14 14:31 ` Max Gurtovoy
2019-08-01 23:45 ` [PATCH v7 06/14] nvmet-passthru: add passthru code to process commands Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 07/14] nvmet-passthru: add enable/disable helpers Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-15 12:20 ` Max Gurtovoy
2019-08-15 12:20 ` Max Gurtovoy
2019-08-15 16:02 ` Logan Gunthorpe
2019-08-15 16:02 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 08/14] nvmet-core: allow one host per passthru-ctrl Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-15 12:36 ` Max Gurtovoy [this message]
2019-08-15 12:36 ` Max Gurtovoy
2019-08-15 16:06 ` Logan Gunthorpe
2019-08-15 16:06 ` Logan Gunthorpe
2019-08-18 10:33 ` Max Gurtovoy
2019-08-22 0:09 ` Sagi Grimberg
2019-08-22 8:50 ` Max Gurtovoy
2019-08-22 17:41 ` Sagi Grimberg
2019-08-22 19:17 ` Sagi Grimberg
2019-08-22 19:41 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 09/14] nvmet-core: don't check the data len for pt-ctrl Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 10/14] nvmet-tcp: don't check data_len in nvmet_tcp_map_data() Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 11/14] nvmet-configfs: introduce passthru configfs interface Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-15 12:46 ` Max Gurtovoy
2019-08-15 12:46 ` Max Gurtovoy
2019-08-01 23:45 ` [PATCH v7 12/14] block: don't check blk_rq_is_passthrough() in blk_do_io_stat() Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 13/14] block: call blk_account_io_start() in blk_execute_rq_nowait() Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
2019-08-01 23:45 ` [PATCH v7 14/14] nvmet-passthru: support block accounting Logan Gunthorpe
2019-08-01 23:45 ` Logan Gunthorpe
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