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Message-ID: <PH7PR21MB3263BFD40B705C57591CAE05CE06A@PH7PR21MB3263.namprd21.prod.outlook.com>
Date:   Fri, 28 Jul 2023 21:32:49 +0000
From:   Long Li <longli@...rosoft.com>
To:     "sharmaajay@...uxonhyperv.com" <sharmaajay@...uxonhyperv.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Leon Romanovsky <leon@...nel.org>,
        Dexuan Cui <decui@...rosoft.com>, Wei Liu <wei.liu@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
CC:     "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ajay Sharma <sharmaajay@...rosoft.com>
Subject: RE: [Patch v3 2/4] RDMA/mana_ib : Register Mana IB  device with
 Management SW

> Subject: [Patch v3 2/4] RDMA/mana_ib : Register Mana IB device with
> Management SW
> 
> [Some people who received this message don't often get email from
> sharmaajay@...uxonhyperv.com. Learn why this is important at
> https://aka.ms/LearnAboutSenderIdentification ]
> 
> From: Ajay Sharma <sharmaajay@...rosoft.com>
> 
> Each of the MANA infiniband devices must be registered with the
> management software to request services/resources.
> Register the Mana IB device with Management which would later help get an
> adapter handle.
> 
> Signed-off-by: Ajay Sharma <sharmaajay@...rosoft.com>
> ---
>  drivers/infiniband/hw/mana/device.c           | 20 +++++--
>  drivers/infiniband/hw/mana/main.c             | 58 ++++++-------------
>  drivers/infiniband/hw/mana/mana_ib.h          |  1 +
>  drivers/infiniband/hw/mana/mr.c               | 17 ++----
>  drivers/infiniband/hw/mana/qp.c               | 10 ++--
>  .../net/ethernet/microsoft/mana/gdma_main.c   |  5 ++
>  include/net/mana/gdma.h                       |  3 +
>  7 files changed, 55 insertions(+), 59 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mana/device.c
> b/drivers/infiniband/hw/mana/device.c
> index 083f27246ba8..ea4c8c8fc10d 100644
> --- a/drivers/infiniband/hw/mana/device.c
> +++ b/drivers/infiniband/hw/mana/device.c
> @@ -78,22 +78,34 @@ static int mana_ib_probe(struct auxiliary_device
> *adev,
>         mib_dev->ib_dev.num_comp_vectors = 1;
>         mib_dev->ib_dev.dev.parent = mdev->gdma_context->dev;
> 
> -       ret = ib_register_device(&mib_dev->ib_dev, "mana_%d",
> -                                mdev->gdma_context->dev);
> +       ret = mana_gd_register_device(&mib_dev->gc->mana_ib);

Is this device implemented on all existing Azure hosts? If not, it will break existing VMs.

Long

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