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From: Greg KH <gregkh@linuxfoundation.org>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: dledford@redhat.com, jgg@mellanox.com,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
	Dave Ertman <david.m.ertman@intel.com>
Subject: Re: [RFC 01/20] ice: Initialize and register multi-function device to provide RDMA
Date: Thu, 26 Sep 2019 20:05:56 +0200	[thread overview]
Message-ID: <20190926180556.GB1733924@kroah.com> (raw)
In-Reply-To: <20190926164519.10471-2-jeffrey.t.kirsher@intel.com>

On Thu, Sep 26, 2019 at 09:45:00AM -0700, Jeff Kirsher wrote:
> From: Tony Nguyen <anthony.l.nguyen@intel.com>
> 
> The RDMA block does not advertise on the PCI bus or any other bus.

Huh?  How do you "know" where it is then?  Isn't is usually assigned to
a PCI device?

> Thus the ice driver needs to provide access to the RDMA hardware block
> via a virtual bus; utilize a multi-function device to provide this access.
> 
> This patch initializes the driver to support RDMA as well as creates
> and registers a multi-function device for the RDMA driver to register to.
> At this point the driver is fully initialized to register a platform
> driver, however, can not yet register as the ops have not been
> implemented.
> 
> We refer to the interaction of this platform device as Inter-Driver
> Communication (IDC); where the platform device is referred to as the peer
> device and the platform driver is referred to as the peer driver.

Again, no platform devices, unless it REALLY IS a platform device (i.e.
you are using device tree or platform data to find it.)  Is that what
you are doing here?

confused,

greg k-h

  reply	other threads:[~2019-09-26 18:06 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-26 16:44 [RFC 00/20] Intel RDMA/IDC Driver series Jeff Kirsher
2019-09-26 16:45 ` [RFC 01/20] ice: Initialize and register multi-function device to provide RDMA Jeff Kirsher
2019-09-26 18:05   ` Greg KH [this message]
2019-09-26 23:39     ` Nguyen, Anthony L
2019-09-27  5:13       ` gregkh
2019-09-27 18:03         ` Ertman, David M
2019-10-23 17:44           ` Jason Gunthorpe
2019-10-23 17:55             ` Ertman, David M
2019-10-23 18:01               ` Jason Gunthorpe
2019-10-24 18:56                 ` gregkh
2019-10-24 19:10                   ` Jason Gunthorpe
2019-10-24 22:25                     ` Ertman, David M
2019-10-25  1:30                       ` gregkh
2019-10-25 22:27                         ` Ertman, David M
2019-10-26 18:53                           ` gregkh
2019-10-31  7:42                             ` Tomas Winkler
2019-09-26 16:45 ` [RFC 02/20] ice: Implement peer communications Jeff Kirsher
2019-09-26 16:45 ` [RFC 03/20] i40e: Register multi-function device to provide RDMA Jeff Kirsher
2019-09-26 16:45 ` [RFC 04/20] RDMA/irdma: Add driver framework definitions Jeff Kirsher
2019-09-26 16:55   ` Jason Gunthorpe
2019-09-26 18:02     ` gregkh
2019-09-26 18:04       ` Jason Gunthorpe
2019-09-26 18:10         ` Saleem, Shiraz
2019-09-26 17:30   ` Leon Romanovsky
2019-09-26 19:51     ` Saleem, Shiraz
2019-10-04 20:12     ` Jeff Kirsher
2019-10-04 23:45       ` Jason Gunthorpe
2019-10-05  0:46         ` Jeff Kirsher
2019-10-05  6:28           ` Leon Romanovsky
2019-10-05  7:08             ` gregkh
2019-10-05 22:01           ` Jason Gunthorpe
2019-09-26 16:45 ` [RFC 05/20] RDMA/irdma: Implement device initialization definitions Jeff Kirsher
2019-09-26 16:45 ` [RFC 06/20] RDMA/irdma: Implement HW Admin Queue OPs Jeff Kirsher
2019-09-26 16:45 ` [RFC 07/20] RDMA/irdma: Add HMC backing store setup functions Jeff Kirsher
2019-09-26 16:45 ` [RFC 08/20] RDMA/irdma: Add privileged UDA queue implementation Jeff Kirsher
2019-09-26 16:45 ` [RFC 09/20] RDMA/irdma: Add QoS definitions Jeff Kirsher
2019-09-26 16:45 ` [RFC 10/20] RDMA/irdma: Add connection manager Jeff Kirsher
2019-09-26 16:45 ` [RFC 11/20] RDMA/irdma: Add PBLE resource manager Jeff Kirsher
2019-09-26 16:45 ` [RFC 12/20] RDMA/irdma: Implement device supported verb APIs Jeff Kirsher
2019-09-26 17:37   ` Leon Romanovsky
2019-09-26 17:40     ` Jason Gunthorpe
2019-09-26 19:50       ` Saleem, Shiraz
2019-09-26 19:49     ` Saleem, Shiraz
2019-09-27  4:50       ` Leon Romanovsky
2019-09-27 14:28         ` Saleem, Shiraz
2019-09-28  6:00           ` Leon Romanovsky
2019-09-30 14:14             ` Saleem, Shiraz
2019-09-26 16:45 ` [RFC 13/20] RDMA/irdma: Add RoCEv2 UD OP support Jeff Kirsher
2019-09-26 16:45 ` [RFC 14/20] RDMA/irdma: Add user/kernel shared libraries Jeff Kirsher
2019-09-26 16:45 ` [RFC 15/20] RDMA/irdma: Add miscellaneous utility definitions Jeff Kirsher
2019-09-26 17:49   ` Leon Romanovsky
2019-09-26 19:49     ` Saleem, Shiraz
2019-09-27  4:46       ` Leon Romanovsky
2019-09-27 14:28         ` Saleem, Shiraz
2019-09-27 18:23           ` gregkh
2019-09-28  5:53             ` Leon Romanovsky
2019-09-26 16:45 ` [RFC 16/20] RDMA/irdma: Add dynamic tracing for CM Jeff Kirsher
2019-09-26 16:45 ` [RFC 17/20] RDMA/irdma: Add ABI definitions Jeff Kirsher
2019-09-26 16:45 ` [RFC 18/20] RDMA/irdma: Update MAINTAINERS file Jeff Kirsher
2019-09-26 16:45 ` [RFC 19/20] RDMA/irdma: Add Kconfig and Makefile Jeff Kirsher
2019-09-26 16:45 ` [RFC 20/20] RDMA/i40iw: Mark i40iw as deprecated Jeff Kirsher
2019-09-26 17:40   ` Leon Romanovsky
2019-09-26 19:49     ` Saleem, Shiraz
2019-09-26 19:55       ` gregkh
2019-09-27 14:28         ` Saleem, Shiraz
2019-09-27 20:18           ` Doug Ledford
2019-09-27 20:17         ` Doug Ledford
2019-09-28  5:55           ` Leon Romanovsky
2019-10-02 21:15             ` Dennis Dalessandro
2019-10-03  8:23               ` Leon Romanovsky
2019-09-29  9:28 ` [RFC 00/20] Intel RDMA/IDC Driver series Or Gerlitz
2019-09-30 15:46   ` Jeff Kirsher

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