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From: "Huang, Wei" <wei.huang@intel.com>
To: "Yigit, Ferruh" <ferruh.yigit@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>, "Xu, Rosen" <rosen.xu@intel.com>,
	"Zhang, Qi Z" <qi.z.zhang@intel.com>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
	"Zhang, Tianfei" <tianfei.zhang@intel.com>,
	Ray Kinsella <mdr@ashroe.eu>
Subject: Re: [dpdk-stable] [PATCH v11 1/4] raw/ifpga: add fpga rsu function
Date: Fri, 22 Jan 2021 02:18:48 +0000
Message-ID: <DM6PR11MB3530A7EB3D5DA315CD70E7C7EFA00@DM6PR11MB3530.namprd11.prod.outlook.com> (raw)
In-Reply-To: <974f2f71-3607-fa25-b618-d5bb2c5652e7@intel.com>

Hi Ferruh,

Cyborg is an OpenStack project that aims to provide a general purpose management framework for acceleration resources (i.e. various types of accelerators such as GPU, FPGA, NP, ODP, DPDK/SPDK and so on).

To update the FPGA flash is one of requirements from Cyborg. Originally there are no such interfaces, so I added them.

These interfaces use rte_rawdev to identify which FPGA to access, they will be called in opae_update_flash(),
opae_cancel_flash_update() and opae_reboot_device() in ifpga_opae_api.c .

These opae_xxx function use PCI address to identify FPGA instead of rte_rawdev, so the caller has no need to know the existence of rte_rawdev.
In fact, Cyborg is Python application, these opae_xxx functions will be eventually wrapped in a Python module for Cyborg to call.

Thanks,
Wei

-----Original Message-----
From: Ferruh Yigit <ferruh.yigit@intel.com> 
Sent: Friday, January 22, 2021 00:30
To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
Cc: stable@dpdk.org; Zhang, Tianfei <tianfei.zhang@intel.com>; Ray Kinsella <mdr@ashroe.eu>
Subject: Re: [dpdk-stable] [PATCH v11 1/4] raw/ifpga: add fpga rsu function

On 1/21/2021 6:03 AM, Wei Huang wrote:
> RSU (Remote System Update) depends on secure manager which may be 
> different on various implementations, so a new secure manager device 
> is implemented for adapting such difference.
> There are three major functions added:
> 1. ifpga_rawdev_update_flash() updates flash with specific image file.
> 2. ifpga_rawdev_stop_flash_update() aborts flash update process.
> 3. ifpga_rawdev_reload() reloads FPGA from updated flash.
> 
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
> Acked-by: Rosen Xu <rosen.xu@intel.com>

<...>

> @@ -76,4 +76,9 @@ int
>   ifpga_unregister_msix_irq(enum ifpga_irq_type type,
>   		int vec_start, rte_intr_callback_fn handler, void *arg);
>   
> +int ifpga_rawdev_update_flash(struct rte_rawdev *dev, const char *image,
> +	uint64_t *status);
> +int ifpga_rawdev_stop_flash_update(struct rte_rawdev *dev, int 
> +force); int ifpga_rawdev_reload(struct rte_rawdev *dev, int type, int 
> +page);
> +
>   #endif /* _IFPGA_RAWDEV_H_ */
> 

Hi Wei,

Please help me understand the rawdev, who should be calling the above newly added functions?

  reply	other threads:[~2021-01-22  2:19 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21  6:03 [dpdk-stable] [PATCH v11 0/4] raw/ifpga: add extra OPAE APIs Wei Huang
2021-01-21  6:03 ` [dpdk-stable] [PATCH v11 1/4] raw/ifpga: add fpga rsu function Wei Huang
2021-01-21 16:30   ` Ferruh Yigit
2021-01-22  2:18     ` Huang, Wei [this message]
2021-01-25 10:01       ` Ferruh Yigit
2021-01-25 10:33         ` Xu, Rosen
2021-01-26  1:16           ` Huang, Wei
2021-01-21  6:03 ` [dpdk-stable] [PATCH v11 2/4] raw/ifpga: add fpga property get function Wei Huang
2021-01-21  6:03 ` [dpdk-stable] [PATCH v11 3/4] raw/ifpga: add OPAE API for OpenStack Cyborg Wei Huang
2021-01-21 16:29   ` [dpdk-stable] [dpdk-dev] " Ferruh Yigit
2021-01-22  2:43     ` Huang, Wei
2021-01-25 10:07       ` Ferruh Yigit
2021-01-21 16:30   ` Ferruh Yigit
2021-01-22  3:16     ` Huang, Wei
2021-01-21 16:33   ` Ferruh Yigit
2021-01-22  3:25     ` Huang, Wei
2021-01-21  6:03 ` [dpdk-stable] [PATCH v11 4/4] examples/ifpga: add example for opae ifpga API Wei Huang
2021-01-21 16:49   ` Ferruh Yigit
2021-01-22  3:52     ` Huang, Wei
2021-01-21  7:08 ` [dpdk-stable] [PATCH v11 0/4] raw/ifpga: add extra OPAE APIs Zhang, Qi Z

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