From: Jason Gunthorpe <jgg@ziepe.ca>
To: Long Li <longli@microsoft.com>
Cc: Dexuan Cui <decui@microsoft.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Leon Romanovsky <leon@kernel.org>,
"edumazet@google.com" <edumazet@google.com>,
"shiraz.saleem@intel.com" <shiraz.saleem@intel.com>,
Ajay Sharma <sharmaajay@microsoft.com>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>
Subject: Re: [Patch v4 03/12] net: mana: Handle vport sharing between devices
Date: Wed, 20 Jul 2022 20:42:09 -0300 [thread overview]
Message-ID: <20220720234209.GP5049@ziepe.ca> (raw)
In-Reply-To: <PH7PR21MB3263F08C111C5D06C99CC32ACE869@PH7PR21MB3263.namprd21.prod.outlook.com>
On Tue, Jul 12, 2022 at 06:48:09PM +0000, Long Li wrote:
> > > @@ -563,9 +581,19 @@ static int mana_cfg_vport(struct
> > > mana_port_context *apc, u32 protection_dom_id,
> > >
> > > apc->tx_shortform_allowed = resp.short_form_allowed;
> > > apc->tx_vp_offset = resp.tx_vport_offset;
> > > +
> > > + netdev_info(apc->ndev, "Configured vPort %llu PD %u DB %u\n",
> > > + apc->port_handle, protection_dom_id, doorbell_pg_id);
> > Should this be netdev_dbg()?
> > The log buffer can be flooded if there are many vPorts per VF PCI device and
> > there are a lot of VFs.
>
> The reason netdev_info () is used is that this message is important
> for troubleshooting initial setup issues with Ethernet driver. We
> rely on user to get this configured right to share the same hardware
> port between Ethernet and RDMA driver. As far as I know, there is no
> easy way for a driver to "take over" an exclusive hardware resource
> from another driver.
This seems like a really strange statement.
Exactly how does all of this work?
Jason
next prev parent reply other threads:[~2022-07-20 23:42 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-16 2:07 [Patch v4 00/12] Introduce Microsoft Azure Network Adapter (MANA) RDMA driver longli
2022-06-16 2:07 ` [Patch v4 01/12] net: mana: Add support for auxiliary device longli
2022-07-11 1:08 ` Dexuan Cui
2022-07-12 18:26 ` Long Li
2022-06-16 2:07 ` [Patch v4 02/12] net: mana: Record the physical address for doorbell page region longli
2022-07-11 1:09 ` Dexuan Cui
2022-06-16 2:07 ` [Patch v4 03/12] net: mana: Handle vport sharing between devices longli
2022-07-11 1:13 ` Dexuan Cui
2022-07-12 18:48 ` Long Li
2022-07-20 23:42 ` Jason Gunthorpe [this message]
2022-07-21 0:06 ` Long Li
2022-07-21 14:38 ` Jason Gunthorpe
2022-07-21 17:58 ` Long Li
2022-07-21 18:32 ` Jason Gunthorpe
2022-07-29 18:44 ` Long Li
2022-07-29 19:12 ` Jason Gunthorpe
2022-07-29 21:20 ` Long Li
2022-08-02 18:08 ` Jason Gunthorpe
2022-08-03 2:08 ` Long Li
2022-06-16 2:07 ` [Patch v4 04/12] net: mana: Add functions for allocating doorbell page from GDMA longli
2022-07-11 1:13 ` Dexuan Cui
2022-07-12 18:48 ` Long Li
2022-07-20 23:42 ` Jason Gunthorpe
2022-06-16 2:07 ` [Patch v4 05/12] net: mana: Set the DMA device max segment size longli
2022-07-11 1:14 ` Dexuan Cui
2022-06-16 2:07 ` [Patch v4 06/12] net: mana: Define data structures for protection domain and memory registration longli
2022-07-11 1:29 ` Dexuan Cui
2022-07-13 4:39 ` Ajay Sharma
2022-07-13 7:22 ` Dexuan Cui
2022-07-20 23:43 ` Jason Gunthorpe
2022-07-21 0:15 ` Long Li
2022-06-16 2:07 ` [Patch v4 07/12] net: mana: Export Work Queue functions for use by RDMA driver longli
2022-07-11 1:31 ` Dexuan Cui
2022-07-12 18:54 ` Long Li
2022-06-16 2:07 ` [Patch v4 08/12] net: mana: Record port number in netdev longli
2022-07-11 1:31 ` Dexuan Cui
2022-06-16 2:07 ` [Patch v4 09/12] net: mana: Move header files to a common location longli
2022-07-11 1:32 ` Dexuan Cui
2022-06-16 2:07 ` [Patch v4 10/12] net: mana: Define max values for SGL entries longli
2022-07-11 1:32 ` Dexuan Cui
2022-07-12 18:56 ` Long Li
2022-06-16 2:07 ` [Patch v4 11/12] net: mana: Define and process GDMA response code GDMA_STATUS_MORE_ENTRIES longli
2022-07-11 1:32 ` Dexuan Cui
2022-06-16 2:07 ` [Patch v4 12/12] RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter longli
2022-06-25 4:20 ` [EXTERNAL] " Ajay Sharma
2022-06-26 0:03 ` Jason Gunthorpe
2022-07-11 1:42 ` Dexuan Cui
2022-07-13 4:32 ` Ajay Sharma
2022-07-13 7:36 ` Dexuan Cui
2022-07-12 19:14 ` Greg KH
2022-07-12 23:46 ` Long Li
2022-07-13 6:14 ` Greg KH
2022-07-20 23:49 ` Jason Gunthorpe
2022-07-21 19:24 ` [EXTERNAL] " Ajay Sharma
2022-07-21 9:17 ` Cheng Xu
2022-07-21 18:01 ` Long Li
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