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.yi...@intel.com> Sent: Friday, January 22, 2021 00:30 To: Huang, Wei <wei.hu...@intel.com>; dev@dpdk.org; Xu, Rosen <rosen...@intel.com>; Zhang, Qi Z <qi.z.zh...@intel.com> Cc: sta...@dpdk.org; Zhang, Tianfei <tianfei.zh...@intel.com>; Ray Kinsella <m...@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.hu...@intel.com> > Acked-by: Tianfei Zhang <tianfei.zh...@intel.com> > Acked-by: Rosen Xu <rosen...@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?
