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From: Logan Gunthorpe <logang@deltatee.com>
To: Serge Semin <fancer.lancer@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-ntb@googlegroups.com,
	Jon Mason <jdmason@kudzu.us>, Dave Jiang <dave.jiang@intel.com>,
	Allen Hubbe <allenbh@gmail.com>,
	Shyam Sundar S K <Shyam-sundar.S-k@amd.com>,
	Shuah Khan <shuah@kernel.org>
Subject: Re: [PATCH 3/8] NTB: Fix the default port and peer numbers for legacy drivers
Date: Fri, 15 Jun 2018 13:51:16 -0600	[thread overview]
Message-ID: <5fbee1ec-b66d-3e82-c19f-dbb8d8582509@deltatee.com> (raw)
In-Reply-To: <20180615194848.GA22880@mobilestation>



On 15/06/18 01:48 PM, Serge Semin wrote:
> Concerning the fix of the discovered issues and fixes introduced by this
> patchset. I'd suggest to add the ports-index callbacks to the Switchtec
> driver, which identify local and peer ports. After this the current version
> of all the test drivers shall perfectly work.

Well that will work for the simple switchtec case. The crosslink
topology CAN NOT produce port numbers like you ask. It is perfectly
symmetric and the two hosts cannot reliably figure out which is port 0
and which is port 1. So these patches support this case.

Logan

  reply	other threads:[~2018-06-15 19:51 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-09  0:08 [PATCH 0/8] Fix breakage caused by the NTB multi-port patchset Logan Gunthorpe
2018-06-09  0:08 ` [PATCH 1/8] NTB: ntb_tool: reading the link file should not end in a NULL byte Logan Gunthorpe
2018-06-15 19:47   ` Serge Semin
2018-06-09  0:08 ` [PATCH 2/8] NTB: Setup the DMA mask globally for all drivers Logan Gunthorpe
2018-06-11 20:51   ` Dave Jiang
2018-06-12 15:48   ` Jon Mason
2018-06-12 16:18     ` Logan Gunthorpe
2018-06-09  0:08 ` [PATCH 3/8] NTB: Fix the default port and peer numbers for legacy drivers Logan Gunthorpe
2018-06-12 15:59   ` Jon Mason
2018-06-12 16:30     ` Logan Gunthorpe
2018-06-15 19:48   ` Serge Semin
2018-06-15 19:51     ` Logan Gunthorpe [this message]
2018-06-09  0:08 ` [PATCH 4/8] NTB: ntb_pingpong: Choose doorbells based on port number Logan Gunthorpe
2018-06-15 19:49   ` Serge Semin
2018-06-15 19:56     ` Logan Gunthorpe
2018-06-09  0:08 ` [PATCH 5/8] NTB: perf: Don't require one more memory window than number of peers Logan Gunthorpe
2018-06-15 19:49   ` Serge Semin
2018-06-09  0:08 ` [PATCH 5/8] NTB: perf: Don't require one more memory window than peer Logan Gunthorpe
2018-06-09  0:09   ` Logan Gunthorpe
2018-06-09  0:08 ` [PATCH 6/8] NTB: perf: Fix support for hardware that doesn't have port numbers Logan Gunthorpe
2018-06-15 19:50   ` Serge Semin
2018-06-15 20:01     ` Logan Gunthorpe
2018-06-09  0:08 ` [PATCH 7/8] NTB: perf: Fix race condition when run with ntb_test Logan Gunthorpe
2018-06-15 19:51   ` Serge Semin
2018-06-15 20:00     ` Logan Gunthorpe
2018-06-09  0:08 ` [PATCH 8/8] NTB: ntb_test: Fix bug when counting remote files Logan Gunthorpe
2018-06-15 19:51   ` Serge Semin
2018-06-15 20:02     ` Logan Gunthorpe
2018-07-20 16:33     ` Logan Gunthorpe
2018-06-10  1:45 ` [PATCH 0/8] Fix breakage caused by the NTB multi-port patchset Allen Hubbe
2018-06-15 19:47 ` Serge Semin

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