fpga: mgr: add compat_id support (99a560bd) · Commits · 戴 / test

This patch introduces compat_id support to fpga manager, it adds a fpga_compat_id pointer to fpga manager data structure to allow fpga manager drivers to save the compatibility id. This compat_id could be used for compatibility checking before doing partial reconfiguration to associated fpga regions. Signed-off-by:

Wu Hao <hao.wu@intel.com> Acked-by:

Alan Tull <atull@kernel.org> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/fpga/fpga-mgr.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -135,12 +135,24 @@ struct fpga_manager_ops {
		#define FPGA_MGR_STATUS_IP_PROTOCOL_ERR BIT(3)
		#define FPGA_MGR_STATUS_FIFO_OVERFLOW_ERR BIT(4)

		/**
		* struct fpga_compat_id - id for compatibility check
		*
		* @id_h: high 64bit of the compat_id
		* @id_l: low 64bit of the compat_id
		*/
		struct fpga_compat_id {
		u64 id_h;
		u64 id_l;
		};

		/**
		* struct fpga_manager - fpga manager structure
		* @name: name of low level fpga manager
		* @dev: fpga manager device
		* @ref_mutex: only allows one reference to fpga manager
		* @state: state of fpga manager
		* @compat_id: FPGA manager id for compatibility check.
		* @mops: pointer to struct of fpga manager ops
		* @priv: low level driver private date
		*/
		@@ -149,6 +161,7 @@ struct fpga_manager {
		struct device dev;
		struct mutex ref_mutex;
		enum fpga_mgr_states state;
		struct fpga_compat_id *compat_id;
		const struct fpga_manager_ops *mops;
		void *priv;
		};

Admin message