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[156.34.55.100]) by smtp.gmail.com with ESMTPSA id i62sm23320393qke.52.2019.07.25.11.01.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 25 Jul 2019 11:01:49 -0700 (PDT) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1hqi3o-0005I8-Ol; Thu, 25 Jul 2019 15:01:48 -0300 Date: Thu, 25 Jul 2019 15:01:48 -0300 From: Jason Gunthorpe To: Michal Kalderon Cc: ariel.elior@marvell.com, dledford@redhat.com, galpress@amazon.com, linux-rdma@vger.kernel.org, davem@davemloft.net, netdev@vger.kernel.org, Bernard Metzler Subject: Re: [PATCH v6 rdma-next 0/6] RDMA/qedr: Use the doorbell overflow recovery mechanism for RDMA Message-ID: <20190725180148.GA20288@ziepe.ca> References: <20190709141735.19193-1-michal.kalderon@marvell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190709141735.19193-1-michal.kalderon@marvell.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, Jul 09, 2019 at 05:17:29PM +0300, Michal Kalderon wrote: > This patch series uses the doorbell overflow recovery mechanism > introduced in > commit 36907cd5cd72 ("qed: Add doorbell overflow recovery mechanism") > for rdma ( RoCE and iWARP ) > > The first three patches modify the core code to contain helper > functions for managing mmap_xa inserting, getting and freeing > entries. The code was taken almost as is from the efa driver. > There is still an open discussion on whether we should take > this even further and make the entire mmap generic. Until a > decision is made, I only created the database API and modified > the efa and qedr driver to use it. The doorbell recovery code will be based > on the common code. > > Efa driver was compile tested only. > > rdma-core pull request #493 > > Changes from V5: > - Switch between driver dealloc_ucontext and mmap_entries_remove. > - No need to verify the key after using the key to load an entry from > the mmap_xa. > - Change mmap_free api to pass an 'entry' object. > - Add documentation for mmap_free and for newly exported functions. > - Fix some extra/missing line breaks. Lets do SIW now as well, it has the same xa scheme copied from EFA Thanks, Jason