From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Jonathan Corbet <corbet@lwn.net>,
Itay Avraham <itayavr@nvidia.com>,
Jakub Kicinski <kuba@kernel.org>,
Leon Romanovsky <leon@kernel.org>, <linux-doc@vger.kernel.org>,
<linux-rdma@vger.kernel.org>, <netdev@vger.kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Saeed Mahameed <saeedm@nvidia.com>,
Tariq Toukan <tariqt@nvidia.com>,
Andy Gospodarek <andrew.gospodarek@broadcom.com>,
Aron Silverton <aron.silverton@oracle.com>,
Dan Williams <dan.j.williams@intel.com>,
David Ahern <dsahern@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Jiri Pirko <jiri@nvidia.com>, Leonid Bloch <lbloch@nvidia.com>,
"Leon Romanovsky" <leonro@nvidia.com>,
<linux-cxl@vger.kernel.org>, <patches@lists.linux.dev>
Subject: Re: [PATCH v2 6/8] fwctl: Add documentation
Date: Fri, 26 Jul 2024 16:50:21 +0100 [thread overview]
Message-ID: <20240726165021.000002d6@Huawei.com> (raw)
In-Reply-To: <6-v2-940e479ceba9+3821-fwctl_jgg@nvidia.com>
> diff --git a/Documentation/userspace-api/fwctl.rst b/Documentation/userspace-api/fwctl.rst
> new file mode 100644
> index 00000000000000..ece2db2530502f
> --- /dev/null
> +++ b/Documentation/userspace-api/fwctl.rst
> @@ -0,0 +1,269 @@
> +Overview
> +========
> +
> +Modern devices contain extensive amounts of FW, and in many cases, are largely
FW and, in many cases, are
> +software-defined pieces of hardware. The evolution of this approach is largely a
> +reaction to Moore's Law where a chip tape out is now highly expensive, and the
> +chip design is extremely large. Replacing fixed HW logic with a flexible and
> +tightly coupled FW/HW combination is an effective risk mitigation against chip
> +respin. Problems in the HW design can be counteracted in device FW. This is
> +especially true for devices which present a stable and backwards compatible
> +interface to the operating system driver (such as NVMe).
...
The document lays out where this sits well.
Jonathan
next prev parent reply other threads:[~2024-07-26 15:50 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-24 22:47 [PATCH v2 0/8] Introduce fwctl subystem Jason Gunthorpe
2024-06-24 22:47 ` [PATCH v2 1/8] fwctl: Add basic structure for a class subsystem with a cdev Jason Gunthorpe
2024-06-25 4:47 ` Bagas Sanjaya
2024-07-22 16:04 ` Jason Gunthorpe
2024-07-26 14:30 ` Jonathan Cameron
2024-07-29 17:30 ` Jason Gunthorpe
2024-07-30 17:15 ` Jonathan Cameron
2024-06-24 22:47 ` [PATCH v2 2/8] fwctl: Basic ioctl dispatch for the character device Jason Gunthorpe
2024-07-26 15:01 ` Jonathan Cameron
2024-07-29 17:05 ` Jason Gunthorpe
2024-07-30 17:28 ` Jonathan Cameron
2024-08-01 13:05 ` Jason Gunthorpe
2024-08-06 7:36 ` Daniel Vetter
2024-08-08 12:34 ` Jason Gunthorpe
2024-06-24 22:47 ` [PATCH v2 3/8] fwctl: FWCTL_INFO to return basic information about the device Jason Gunthorpe
2024-07-26 15:15 ` Jonathan Cameron
2024-07-29 16:35 ` Jason Gunthorpe
2024-07-30 17:34 ` Jonathan Cameron
2024-08-01 13:11 ` Jason Gunthorpe
2024-06-24 22:47 ` [PATCH v2 4/8] taint: Add TAINT_FWCTL Jason Gunthorpe
2024-06-25 19:03 ` Randy Dunlap
2024-07-10 16:04 ` Jason Gunthorpe
2024-06-24 22:47 ` [PATCH v2 5/8] fwctl: FWCTL_RPC to execute a Remote Procedure Call to device firmware Jason Gunthorpe
2024-07-26 15:30 ` Jonathan Cameron
2024-07-29 16:28 ` Jason Gunthorpe
2024-07-30 8:00 ` Leon Romanovsky
2024-08-01 12:58 ` Jason Gunthorpe
2024-08-01 17:26 ` Leon Romanovsky
2024-08-02 13:59 ` Jonathan Cameron
2024-08-02 15:57 ` Leon Romanovsky
2024-08-07 7:44 ` Oded Gabbay
2024-08-08 11:46 ` Jason Gunthorpe
2024-06-24 22:47 ` [PATCH v2 6/8] fwctl: Add documentation Jason Gunthorpe
2024-06-25 22:04 ` Randy Dunlap
2024-07-22 16:18 ` Jason Gunthorpe
2024-07-22 20:40 ` Randy Dunlap
2024-07-26 15:50 ` Jonathan Cameron [this message]
2024-07-29 16:11 ` Jason Gunthorpe
2024-08-06 8:03 ` Daniel Vetter
2024-08-08 12:24 ` Jason Gunthorpe
2024-08-09 9:21 ` Daniel Vetter
2024-06-24 22:47 ` [PATCH v2 7/8] fwctl/mlx5: Support for communicating with mlx5 fw Jason Gunthorpe
2024-07-26 16:10 ` Jonathan Cameron
2024-07-29 16:22 ` Jason Gunthorpe
2024-07-31 11:52 ` Jonathan Cameron
2024-08-01 13:25 ` Jason Gunthorpe
2024-06-24 22:47 ` [PATCH v2 8/8] mlx5: Create an auxiliary device for fwctl_mlx5 Jason Gunthorpe
2024-06-24 23:18 ` [PATCH v2 0/8] Introduce fwctl subystem Jakub Kicinski
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