Re: [PATCH v3 05/15] IB/pvrdma: Add paravirtual rdma device

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On Sun, Aug 28, 2016 at 04:06:57PM +0300, Leon Romanovsky wrote:
> On Thu, Aug 25, 2016 at 12:59:21PM +0300, Yuval Shaia wrote:
> > On Wed, Aug 03, 2016 at 04:27:34PM -0700, Adit Ranadive wrote:
> > > This patch adds the main device-level structures and functions to be used
> > > to provide RDMA functionality. Also, we define conversion functions from
> > > the IB core stack structures to the device-specific ones.
> > >
> > > Changes v2->v3:
> > >  - Removed VMware vendor id redefinition.
> > >  - Removed the boolean in pvrdma_cmd_post.
> > >
> > > Reviewed-by: Jorgen Hansen <jhansen@xxxxxxxxxx>
> > > Reviewed-by: George Zhang <georgezhang@xxxxxxxxxx>
> > > Reviewed-by: Aditya Sarwade <asarwade@xxxxxxxxxx>
> > > Reviewed-by: Bryan Tan <bryantan@xxxxxxxxxx>
> > > Signed-off-by: Adit Ranadive <aditr@xxxxxxxxxx>
> > > ---
> > >  drivers/infiniband/hw/pvrdma/pvrdma.h | 456 ++++++++++++++++++++++++++++++++++
> > >  1 file changed, 456 insertions(+)
> > >  create mode 100644 drivers/infiniband/hw/pvrdma/pvrdma.h
> > >
> > > diff --git a/drivers/infiniband/hw/pvrdma/pvrdma.h b/drivers/infiniband/hw/pvrdma/pvrdma.h
> > > new file mode 100644
> > > index 0000000..8a45fcc
> > > --- /dev/null
> > > +++ b/drivers/infiniband/hw/pvrdma/pvrdma.h
> > > @@ -0,0 +1,456 @@
> > > +/*
> > > + * Copyright (c) 2012-2016 VMware, Inc.  All rights reserved.
> > > + *
> > > + * This program is free software; you can redistribute it and/or
> > > + * modify it under the terms of EITHER the GNU General Public License
> > > + * version 2 as published by the Free Software Foundation or the BSD
> > > + * 2-Clause License. This program is distributed in the hope that it
> > > + * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
> > > + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
> > > + * See the GNU General Public License version 2 for more details at
> > > + * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
> > > + *
> > > + * You should have received a copy of the GNU General Public License
> > > + * along with this program available in the file COPYING in the main
> > > + * directory of this source tree.
> > > + *
> > > + * The BSD 2-Clause License
> > > + *
> > > + *     Redistribution and use in source and binary forms, with or
> > > + *     without modification, are permitted provided that the following
> > > + *     conditions are met:
> > > + *
> > > + *      - Redistributions of source code must retain the above
> > > + *        copyright notice, this list of conditions and the following
> > > + *        disclaimer.
> > > + *
> > > + *      - Redistributions in binary form must reproduce the above
> > > + *        copyright notice, this list of conditions and the following
> > > + *        disclaimer in the documentation and/or other materials
> > > + *        provided with the distribution.
> > > + *
> > > + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> > > + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> > > + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
> > > + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
> > > + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
> > > + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> > > + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
> > > + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> > > + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
> > > + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> > > + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
> > > + * OF THE POSSIBILITY OF SUCH DAMAGE.
> > > + */
> > > +
> > > +#ifndef __PVRDMA_H__
> > > +#define __PVRDMA_H__
> > > +
> > > +#include <linux/compiler.h>
> > > +#include <linux/interrupt.h>
> > > +#include <linux/list.h>
> > > +#include <linux/mutex.h>
> > > +#include <linux/pci.h>
> > > +#include <linux/semaphore.h>
> > > +#include <rdma/ib_umem.h>
> > > +#include <rdma/ib_verbs.h>
> > > +
> > > +#include "pvrdma_defs.h"
> > > +#include "pvrdma_dev_api.h"
> > > +#include "pvrdma_verbs.h"
> > > +
> > > +/* NOT the same as BIT_MASK(). */
> > > +#define PVRDMA_MASK(n) ((n << 1) - 1)
> > > +
> > > +/*
> > > + * VMware PVRDMA PCI device id.
> > > + */
> > > +#define PCI_DEVICE_ID_VMWARE_PVRDMA	0x0820
> >
> > I don't see a reason to define it locally in the driver.
> > Suggesting to move it to include/linux/pci_ids.h
> 
> Interesting,
> We already discussed it.

I believe the discussion was about vendor ID.
As far as i see it - suggestion applies also to device ID.

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