From: Matthew Wilcox <willy@infradead.org>
To: Leon Romanovsky <leon@kernel.org>
Cc: hans.westgaard.ry@oracle.com,
"Doug Ledford" <dledford@redhat.com>,
"Jason Gunthorpe" <jgg@mellanox.com>,
"Matthew Wilcox" <mawilcox@microsoft.com>,
linux-rdma@vger.kernel.org,
"Håkon Bugge" <haakon.bugge@oracle.com>,
"Parav Pandit" <parav@mellanox.com>,
"Jack Morgenstein" <jackm@dev.mellanox.co.il>,
"Pravin Shedge" <pravin.shedge4linux@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] IB/mad: Use IDR for agent IDs
Date: Sun, 10 Jun 2018 03:43:05 -0700 [thread overview]
Message-ID: <20180610104305.GA9284@bombadil.infradead.org> (raw)
In-Reply-To: <20180610063028.GH12407@mtr-leonro.mtl.com>
On Sun, Jun 10, 2018 at 09:30:28AM +0300, Leon Romanovsky wrote:
> 1. IBTA spec doesn't talk at all about the size of TransactionID, more
> on that in section "13.4.6.4 TRANSACTION ID USAGE", the specification
> says: "The contents of the TransactionID (TID) field are implementation-
> dependent. So let's don't call it mlx4 bug.
I was loosely paraphrasing the original bug report; suggested rewording
of the comments gratefully accepted.
> 2. The current implementation means that in mlx5-only network we will
> still have upto (1 << 24) TIDs. I don't know if it is really important,
> but worth to mention.
Actually, the TIDs will be up to 2^56. We're limited to 2^24 clients,
each of which can send up to 2^32 messages.
next prev parent reply other threads:[~2018-06-10 10:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-08 17:42 [PATCH 0/2] Convert IB/mad to use an IDR for agent IDs Matthew Wilcox
2018-06-08 17:42 ` [PATCH 1/2] IB/mad: Agent registration is process context only Matthew Wilcox
2018-06-12 20:38 ` Jason Gunthorpe
2018-06-08 17:42 ` [PATCH 2/2] IB/mad: Use IDR for agent IDs Matthew Wilcox
2018-06-10 6:30 ` Leon Romanovsky
2018-06-10 10:43 ` Matthew Wilcox [this message]
2018-06-10 12:25 ` Leon Romanovsky
2018-06-10 20:30 ` Jason Gunthorpe
2018-06-11 4:34 ` Leon Romanovsky
2018-06-11 4:42 ` Jason Gunthorpe
2018-06-11 6:19 ` jackm
2018-06-11 16:19 ` Jason Gunthorpe
2018-06-12 4:59 ` jackm
2018-06-12 14:33 ` Jason Gunthorpe
2018-06-12 8:50 ` jackm
2018-06-12 12:12 ` Matthew Wilcox
2018-06-12 20:33 ` Jason Gunthorpe
2018-06-13 0:07 ` Matthew Wilcox
2018-06-13 7:36 ` Leon Romanovsky
2018-06-13 7:56 ` jackm
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