netdev - Re: [PATCH v2 1/1] RDMA/mana_ib: Add EQ interrupt support to mana ib driver.

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Message-ID: <20230612061349.GM12152@unreal>
Date: Mon, 12 Jun 2023 09:13:49 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Wei Hu <weh@...rosoft.com>
Cc: Jakub Kicinski <kuba@...nel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	Long Li <longli@...rosoft.com>,
	Ajay Sharma <sharmaajay@...rosoft.com>,
	"jgg@...pe.ca" <jgg@...pe.ca>, KY Srinivasan <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	"wei.liu@...nel.org" <wei.liu@...nel.org>,
	Dexuan Cui <decui@...rosoft.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	"pabeni@...hat.com" <pabeni@...hat.com>,
	"vkuznets@...hat.com" <vkuznets@...hat.com>,
	"ssengar@...ux.microsoft.com" <ssengar@...ux.microsoft.com>,
	"shradhagupta@...ux.microsoft.com" <shradhagupta@...ux.microsoft.com>
Subject: Re: [PATCH v2 1/1] RDMA/mana_ib: Add EQ interrupt support to mana ib
 driver.

On Mon, Jun 12, 2023 at 04:44:44AM +0000, Wei Hu wrote:
> Hi Jakub,
> 
> > -----Original Message-----
> > From: Jakub Kicinski <kuba@...nel.org>
> > Sent: Thursday, June 8, 2023 12:39 PM
> > To: Wei Hu <weh@...rosoft.com>
> > Cc: netdev@...r.kernel.org; linux-hyperv@...r.kernel.org; linux-
> > rdma@...r.kernel.org; Long Li <longli@...rosoft.com>; Ajay Sharma
> > <sharmaajay@...rosoft.com>; jgg@...pe.ca; leon@...nel.org; KY
> > Srinivasan <kys@...rosoft.com>; Haiyang Zhang <haiyangz@...rosoft.com>;
> > wei.liu@...nel.org; Dexuan Cui <decui@...rosoft.com>;
> > davem@...emloft.net; edumazet@...gle.com; pabeni@...hat.com;
> > vkuznets@...hat.com; ssengar@...ux.microsoft.com;
> > shradhagupta@...ux.microsoft.com
> > Subject: Re: [PATCH v2 1/1] RDMA/mana_ib: Add EQ interrupt support to
> > mana ib driver.
> > 
> > On Tue,  6 Jun 2023 15:17:47 +0000 Wei Hu wrote:
> > >  drivers/infiniband/hw/mana/cq.c               |  32 ++++-
> > >  drivers/infiniband/hw/mana/main.c             |  87 ++++++++++++
> > >  drivers/infiniband/hw/mana/mana_ib.h          |   4 +
> > >  drivers/infiniband/hw/mana/qp.c               |  90 +++++++++++-
> > >  .../net/ethernet/microsoft/mana/gdma_main.c   | 131 ++++++++++--------
> > >  drivers/net/ethernet/microsoft/mana/mana_en.c |   1 +
> > >  include/net/mana/gdma.h                       |   9 +-
> > 
> > IB and netdev are different subsystem, can you put it on a branch and send a
> > PR as the cover letter so that both subsystems can pull?
> > 
> > Examples:
> > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.
> > kernel.org%2Fall%2F20230607210410.88209-1-
> > saeed%40kernel.org%2F&data=05%7C01%7Cweh%40microsoft.com%7Cb672
> > 4a9f672f47d433ef08db67da4ada%7C72f988bf86f141af91ab2d7cd011db47%7C
> > 1%7C0%7C638217959538674174%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiM
> > C4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000
> > %7C%7C%7C&sdata=amO0W8QsR2I5INNNzCNOKEjrsYbzuZ92KXhNdfwSCHA
> > %3D&reserved=0
> > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.
> > kernel.org%2Fall%2F20230602171302.745492-1-
> > anthony.l.nguyen%40intel.com%2F&data=05%7C01%7Cweh%40microsoft.co
> > m%7Cb6724a9f672f47d433ef08db67da4ada%7C72f988bf86f141af91ab2d7cd0
> > 11db47%7C1%7C0%7C638217959538674174%7CUnknown%7CTWFpbGZsb3d8
> > eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3
> > D%7C3000%7C%7C%7C&sdata=A%2BjjtSx%2FvY2T%2BNIEPGuftk%2BCr%2Fv
> > Yt2Xc1q8B6h2tb6g%3D&reserved=0
> 
> Thanks for you comment. I am  new to the process. I have a few questions regarding to this and hope you can help. First of all, the patch is mostly for IB. Is it possible for the patch to just go through the RDMA branch, since most of the changes are in RDMA? 

Yes, it can, we (RDMA) will handle it.

Thanks