From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Dave Jiang <dave.jiang@intel.com>
Cc: <linux-cxl@vger.kernel.org>, <dan.j.williams@intel.com>,
<ira.weiny@intel.com>, <vishal.l.verma@intel.com>,
<alison.schofield@intel.com>, <dave@stgolabs.net>,
<jgg@nvidia.com>, <shiju.jose@huawei.com>
Subject: Re: [RFC PATCH 11/13] fwctl/cxl: Add query commands software command for ->fw_rpc()
Date: Mon, 29 Jul 2024 12:48:31 +0100 [thread overview]
Message-ID: <20240729124831.0000790c@Huawei.com> (raw)
In-Reply-To: <20240718213446.1750135-12-dave.jiang@intel.com>
On Thu, 18 Jul 2024 14:32:29 -0700
Dave Jiang <dave.jiang@intel.com> wrote:
> Add a software command through the ->fw_rpc() in order for the user to
> retrieve information about the commands that are supported. In this
> instance only 3 commands are supported: Get Supported Features, Get
> Feature, and Set Feature.
>
> The expected flow of operation is to send the call first with 0 set
> to the n_commands parameter to indicate query of total commands
> available. And then a second call provides the number of commands
> to retrieve with the appropriate amount of memory allocated to store
> information about the commands.
We will need another layer of querying to query what features
are supported for each type of access. Get is probably always reasonable
in some cases we may want to block Set even with taint as it may provide
a nasty footgun.
Jonathan
next prev parent reply other threads:[~2024-07-29 11:48 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-18 21:32 [RFC PATCH 0/13] fwctl/cxl: Add CXL feature commands support via fwctl Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 01/13] cxl: Move mailbox related bits to the same context Dave Jiang
2024-07-19 6:31 ` Alejandro Lucero Palau
2024-07-19 15:47 ` Dave Jiang
2024-07-19 16:07 ` Alejandro Lucero Palau
2024-07-26 17:28 ` Jonathan Cameron
2024-07-18 21:32 ` [RFC PATCH 02/13] cxl: Fix comment regarding cxl_query_cmd() return data Dave Jiang
2024-07-26 17:29 ` Jonathan Cameron
2024-09-24 23:41 ` Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 03/13] cxl: Refactor user ioctl command path from mds to mailbox Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 04/13] cxl: Add Get Supported Features command for kernel usage Dave Jiang
2024-07-26 17:50 ` Jonathan Cameron
2024-09-27 16:22 ` Dave Jiang
2024-08-21 16:05 ` Shiju Jose
2024-08-21 18:10 ` Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 05/13] cxl/test: Add Get Supported Features mailbox command support Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 06/13] cxl: Add Get Feature " Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 07/13] cxl: Add Set " Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 08/13] fwctl/cxl: Add driver for CXL mailbox for handling CXL features commands Dave Jiang
2024-07-22 15:31 ` Jason Gunthorpe
2024-07-22 21:42 ` Dave Jiang
2024-07-26 18:02 ` Jonathan Cameron
2024-09-24 23:44 ` Dave Jiang
2024-09-26 17:37 ` Jason Gunthorpe
2024-09-26 20:26 ` Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 09/13] fwctl/cxl: Add support for get driver information Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 10/13] fwctl/cxl: Add support for fwctl RPC command to enable CXL feature commands Dave Jiang
2024-07-22 15:29 ` Jason Gunthorpe
2024-07-22 22:52 ` Dave Jiang
2024-07-29 11:29 ` Jonathan Cameron
2024-11-13 15:41 ` Dave Jiang
2024-11-19 11:41 ` Jonathan Cameron
2024-07-18 21:32 ` [RFC PATCH 11/13] fwctl/cxl: Add query commands software command for ->fw_rpc() Dave Jiang
2024-07-22 15:24 ` Jason Gunthorpe
2024-07-22 23:23 ` Dave Jiang
2024-08-08 12:56 ` Jason Gunthorpe
2024-07-29 11:48 ` Jonathan Cameron [this message]
2024-07-18 21:32 ` [RFC PATCH 12/13] cxl/test: Add Get Feature support to cxl_test Dave Jiang
2024-07-18 21:32 ` [RFC PATCH 13/13] cxl/test: Add Set " Dave Jiang
2024-07-19 6:23 ` [RFC PATCH 0/13] fwctl/cxl: Add CXL feature commands support via fwctl Alejandro Lucero Palau
2024-07-19 15:48 ` Dave Jiang
2024-07-22 15:32 ` Jason Gunthorpe
2024-07-29 12:05 ` Jonathan Cameron
2024-08-06 16:44 ` Dave Jiang
2024-11-13 0:17 ` Dave Jiang
2024-11-19 11:43 ` Jonathan Cameron
2024-11-19 15:58 ` Dave Jiang
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