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From: Leon Romanovsky <leon@kernel.org>
To: "Saleem, Shiraz" <shiraz.saleem@intel.com>
Cc: Parav Pandit <parav@nvidia.com>, Jason Gunthorpe <jgg@nvidia.com>,
	"dledford@redhat.com" <dledford@redhat.com>,
	"kuba@kernel.org" <kuba@kernel.org>,
	"davem@davemloft.net" <davem@davemloft.net>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"Lacombe, John S" <john.s.lacombe@intel.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"Ertman, David M" <david.m.ertman@intel.com>,
	"Nguyen, Anthony L" <anthony.l.nguyen@intel.com>,
	"Williams, Dan J" <dan.j.williams@intel.com>,
	"Hefty, Sean" <sean.hefty@intel.com>,
	"Keller, Jacob E" <jacob.e.keller@intel.com>
Subject: Re: [PATCH v4 05/23] ice: Add devlink params support
Date: Sun, 18 Apr 2021 14:51:07 +0300
Message-ID: <YHwdKxtIi26ZmVlL@unreal> (raw)
In-Reply-To: <4d9a592fa5694de8aadc60db1376da20@intel.com>

On Wed, Apr 14, 2021 at 12:21:08AM +0000, Saleem, Shiraz wrote:
> > Subject: RE: [PATCH v4 05/23] ice: Add devlink params support

<...>

> > > Why not just allow the setting to apply dynamically during a 'set'
> > > itself with an unplug/plug of the auxdev with correct type.
> > >
> > This suggestion came up in the internal discussion too.
> > However such task needs to synchronize with devlink reload command and also
> > with driver remove() sequence.
> > So locking wise and depending on amount of config change, it is close to what
> > reload will do.
> 
> Holding this mutex across the auxiliary device unplug/plug in "set" wont cut it?
> https://elixir.bootlin.com/linux/v5.12-rc7/source/drivers/net/ethernet/mellanox/mlx5/core/main.c#L1304

Like Parav said, we are working to fix it and already have one working
solution, unfortunately it has one eyebrow raising change and we are
trying another one.

You can take a look here to get sense of the scope:
https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/log/?h=devlink-core

Thanks

  parent reply index

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-06 21:01 [PATCH v4 00/23] Add Intel Ethernet Protocol Driver for RDMA (irdma) Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 01/23] iidc: Introduce iidc.h Shiraz Saleem
2021-04-07 15:44   ` Jason Gunthorpe
2021-04-07 20:58     ` Saleem, Shiraz
2021-04-07 22:43       ` Jason Gunthorpe
2021-04-08  7:14         ` Leon Romanovsky
2021-04-09  1:38           ` Saleem, Shiraz
2021-04-11 11:48             ` Leon Romanovsky
2021-04-12 14:50         ` Saleem, Shiraz
2021-04-12 16:12           ` Jason Gunthorpe
2021-04-15 17:36             ` Saleem, Shiraz
2021-04-07 17:35   ` Jason Gunthorpe
2021-04-12 14:51     ` Saleem, Shiraz
2021-04-06 21:01 ` [PATCH v4 02/23] ice: Initialize RDMA support Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 03/23] ice: Implement iidc operations Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 04/23] ice: Register auxiliary device to provide RDMA Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 05/23] ice: Add devlink params support Shiraz Saleem
2021-04-07 14:57   ` Jason Gunthorpe
2021-04-07 20:58     ` Saleem, Shiraz
2021-04-07 22:46       ` Jason Gunthorpe
2021-04-12 14:50         ` Saleem, Shiraz
2021-04-12 19:07           ` Parav Pandit
2021-04-13  4:03             ` Parav Pandit
2021-04-13 14:40             ` Saleem, Shiraz
2021-04-13 17:36               ` Parav Pandit
2021-04-14  0:21                 ` Saleem, Shiraz
2021-04-14  5:27                   ` Parav Pandit
2021-04-18 11:51                   ` Leon Romanovsky [this message]
2021-04-06 21:01 ` [PATCH v4 06/23] i40e: Prep i40e header for aux bus conversion Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 07/23] i40e: Register auxiliary devices to provide RDMA Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 08/23] RDMA/irdma: Register auxiliary driver and implement private channel OPs Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 09/23] RDMA/irdma: Implement device initialization definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 10/23] RDMA/irdma: Implement HW Admin Queue OPs Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 11/23] RDMA/irdma: Add HMC backing store setup functions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 12/23] RDMA/irdma: Add privileged UDA queue implementation Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 13/23] RDMA/irdma: Add QoS definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 14/23] RDMA/irdma: Add connection manager Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 15/23] RDMA/irdma: Add PBLE resource manager Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 16/23] RDMA/irdma: Implement device supported verb APIs Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 17/23] RDMA/irdma: Add RoCEv2 UD OP support Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 18/23] RDMA/irdma: Add user/kernel shared libraries Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 19/23] RDMA/irdma: Add miscellaneous utility definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 20/23] RDMA/irdma: Add dynamic tracing for CM Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 21/23] RDMA/irdma: Add ABI definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 22/23] RDMA/irdma: Add irdma Kconfig/Makefile and remove i40iw Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 23/23] RDMA/irdma: Update MAINTAINERS file Shiraz Saleem
2021-04-06 21:05 ` [PATCH v4 00/23] Add Intel Ethernet Protocol Driver for RDMA (irdma) Saleem, Shiraz
2021-04-06 23:15 ` Jason Gunthorpe
2021-04-06 23:30   ` Saleem, Shiraz
2021-04-07  0:18     ` Saleem, Shiraz
2021-04-07 11:31     ` Jason Gunthorpe
2021-04-07 15:06       ` Saleem, Shiraz

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