From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sagi Grimberg Subject: Re: [PATCH 0/2] Get rid of transport layer retry count config parameter Date: Wed, 20 Jul 2016 11:42:04 +0300 Message-ID: <578F395C.3000006@grimberg.me> References: <1466597161-5242-1-git-send-email-sagi@grimberg.me> <20160622161559.GA18361@infradead.org> <12b64608-1d42-ffe6-c11a-58139cbabd3a@sandisk.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <12b64608-1d42-ffe6-c11a-58139cbabd3a-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Bart Van Assche , Christoph Hellwig Cc: linux-nvme-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org > The IB spec defines an end-to-end credit mechanism for RC connections. > So if the transport layer is reliable (InfiniBand, RoCE with DCB > enabled) setting the retry count high enough is only needed to avoid > connection shutdown due to brief cable disconnect/reconnect events. Right, this is why I think the driver can use whatever it sees fit (we have a keep-alive mechanism for fast-fail functionality). -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html