From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [rdma-rc PATCH 2/2] iw_cxgb4: cq/qp mask depends on bar2 pages in a host page Date: Thu, 14 Feb 2019 15:41:34 +0000 Message-ID: <20190214154127.GD1725@mellanox.com> References: <20190214121054.11693-1-rajur@chelsio.com> <20190214121054.11693-3-rajur@chelsio.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20190214121054.11693-3-rajur@chelsio.com> Content-Language: en-US Content-ID: <71B9D036799BE642AE1FFFBBFF1456CE@eurprd05.prod.outlook.com> Sender: netdev-owner@vger.kernel.org To: Raju Rangoju Cc: "davem@davemloft.net" , "linux-rdma@vger.kernel.org" , "netdev@vger.kernel.org" , "swise@opengridcomputing.com" List-Id: linux-rdma@vger.kernel.org On Thu, Feb 14, 2019 at 05:40:54PM +0530, Raju Rangoju wrote: > Adjust the cq/qp mask based on no.of bar2 pages in a host page. >=20 > For user-mode rdma, the granularity of the BAR2 memory mapped > to a user rdma process during queue allocation must be based > on the host page size. The lld attributes udb_density and > ucq_density are used to figure out how many sge contexts are > in a bar2 page. So the rdev->qpmask and rdev->cqmask in > iw_cxgb4 need to now be adjusted based on how many sge bar2 > pages are in a host page. Why is this rc? Do certain arches fail to work or something? Jason