From: Raju Rangoju <rajur@chelsio.com>
To: Jason Gunthorpe <jgg@mellanox.com>
Cc: "davem@davemloft.net" <davem@davemloft.net>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"swise@opengridcomputing.com" <swise@opengridcomputing.com>
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 22:58:02 +0530 [thread overview]
Message-ID: <20190214172801.GA12408@chelsio.com> (raw)
In-Reply-To: <20190214154127.GD1725@mellanox.com>
On Thursday, February 02/14/19, 2019 at 15:41:34 +0000, Jason Gunthorpe wrote:
> 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.
> >
> > 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?
>
Yes, this series fixes a regression that was introduced by commit
2391b0030e (v5.0-rc1~129^2~272)
> Jason
next prev parent reply other threads:[~2019-02-14 17:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 12:10 [rdma-rc PATCH 0/2] iw_cxgb4: Adjust the cq/qp mask Raju Rangoju
2019-02-14 12:10 ` [rdma-rc PATCH 1/2] cxgb4: export sge_host_page_size to ulds Raju Rangoju
2019-02-14 15:51 ` Leon Romanovsky
2019-02-14 12:10 ` [rdma-rc PATCH 2/2] iw_cxgb4: cq/qp mask depends on bar2 pages in a host page Raju Rangoju
2019-02-14 15:41 ` Jason Gunthorpe
2019-02-14 17:28 ` Raju Rangoju [this message]
2019-02-14 17:54 ` Steve Wise
2019-02-15 22:47 ` [rdma-rc PATCH 0/2] iw_cxgb4: Adjust the cq/qp mask Jason Gunthorpe
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