26 #include <linux/cdx/bitfield.h>
28 #include <linux/cdx/mcdi.h>
31 static void cdx_mcdi_cancel_cmd(struct cdx_mcdi *cdx, struct cdx_mcdi_cmd *cmd);
32 static void cdx_mcdi_wait_for_cleanup(struct cdx_mcdi *cdx);
33 static int cdx_mcdi_rpc_async_internal(struct cdx_mcdi *cdx,
49 static void cdx_mcdi_mode_fail(struct cdx_mcdi *cdx, struct list_head *cleanup_list);
50 static void _cdx_mcdi_display_error(struct cdx_mcdi *cdx, unsigned int cmd,
95 static unsigned long cdx_mcdi_rpc_timeout(struct cdx_mcdi *cdx, unsigned int cmd)  in cdx_mcdi_rpc_timeout()  argument
97 	if (!cdx->mcdi_ops->mcdi_rpc_timeout)  in cdx_mcdi_rpc_timeout()
100 		return cdx->mcdi_ops->mcdi_rpc_timeout(cdx, cmd);  in cdx_mcdi_rpc_timeout()
105  * @cdx:	Handle to the CDX MCDI structure
108  * for the CDX device, including the workqueue, locking primitives, and command
116 int cdx_mcdi_init(struct cdx_mcdi *cdx)  in cdx_mcdi_init()  argument
121 	cdx->mcdi = kzalloc(sizeof(*cdx->mcdi), GFP_KERNEL);  in cdx_mcdi_init()
122 	if (!cdx->mcdi)  in cdx_mcdi_init()
125 	mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_init()
126 	mcdi->cdx = cdx;  in cdx_mcdi_init()
140 	kfree(cdx->mcdi);  in cdx_mcdi_init()
141 	cdx->mcdi = NULL;  in cdx_mcdi_init()
149  * @cdx:	Handle to the CDX MCDI structure
155 void cdx_mcdi_finish(struct cdx_mcdi *cdx)  in cdx_mcdi_finish()  argument
159 	mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_finish()
163 	cdx_mcdi_wait_for_cleanup(cdx);  in cdx_mcdi_finish()
166 	kfree(cdx->mcdi);  in cdx_mcdi_finish()
167 	cdx->mcdi = NULL;  in cdx_mcdi_finish()
183 static void cdx_mcdi_wait_for_cleanup(struct cdx_mcdi *cdx)  in cdx_mcdi_wait_for_cleanup()  argument
185 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_wait_for_cleanup()
194 int cdx_mcdi_wait_for_quiescence(struct cdx_mcdi *cdx,  in cdx_mcdi_wait_for_quiescence()  argument
197 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_wait_for_quiescence()
242 static void cdx_mcdi_send_request(struct cdx_mcdi *cdx,  in cdx_mcdi_send_request()  argument
245 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_send_request()
287 	cdx->mcdi_ops->mcdi_request(cdx, hdr, hdr_len, inbuf, inlen);  in cdx_mcdi_send_request()
292 static int cdx_mcdi_errno(struct cdx_mcdi *cdx, unsigned int mcdi_err)  in cdx_mcdi_errno()  argument
339 static void cdx_mcdi_process_cleanup_list(struct cdx_mcdi *cdx,  in cdx_mcdi_process_cleanup_list()  argument
342 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_process_cleanup_list()
352 		cmd->completer(cdx, cmd->cookie, cmd->rc,  in cdx_mcdi_process_cleanup_list()
399 static void cdx_mcdi_cancel_cmd(struct cdx_mcdi *cdx, struct cdx_mcdi_cmd *cmd)  in cdx_mcdi_cancel_cmd()  argument
401 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_cancel_cmd()
410 	cdx_mcdi_process_cleanup_list(cdx, &cleanup_list);  in cdx_mcdi_cancel_cmd()
428 static void cdx_mcdi_rpc_completer(struct cdx_mcdi *cdx, unsigned long cookie,  in cdx_mcdi_rpc_completer()  argument
446 static int cdx_mcdi_rpc_sync(struct cdx_mcdi *cdx, unsigned int cmd,  in cdx_mcdi_rpc_sync()  argument
485 	rc = cdx_mcdi_rpc_async_internal(cdx, cmd_item, &handle);  in cdx_mcdi_rpc_sync()
492 				cdx_mcdi_rpc_timeout(cdx, cmd)) &&  in cdx_mcdi_rpc_sync()
497 		cdx_mcdi_cancel_cmd(cdx, cmd_item);  in cdx_mcdi_rpc_sync()
522 static int cdx_mcdi_rpc_async_internal(struct cdx_mcdi *cdx,  in cdx_mcdi_rpc_async_internal()  argument
526 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_rpc_async_internal()
554 	struct cdx_mcdi *cdx = mcdi->cdx;  in cdx_mcdi_cmd_start_or_queue()  local
561 		cdx_mcdi_send_request(cdx, cmd);  in cdx_mcdi_cmd_start_or_queue()
582  * @cdx:	Handle to the CDX MCDI structure
593 void cdx_mcdi_process_cmd(struct cdx_mcdi *cdx, struct cdx_dword *outbuf, int len)  in cdx_mcdi_process_cmd()  argument
605 	mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_process_cmd()
628 	cdx_mcdi_process_cleanup_list(mcdi->cdx, &cleanup_list);  in cdx_mcdi_process_cmd()
659 	struct cdx_mcdi *cdx = mcdi->cdx;  in cdx_mcdi_complete_cmd()  local
709 				_cdx_mcdi_display_error(cdx, cmd->cmd,  in cdx_mcdi_complete_cmd()
711 							cdx_mcdi_errno(cdx, rc));  in cdx_mcdi_complete_cmd()
713 			rc = cdx_mcdi_errno(cdx, rc);  in cdx_mcdi_complete_cmd()
754 	struct cdx_mcdi *cdx = mcdi->cdx;  in cdx_mcdi_timeout_cmd()  local
763 	cdx_mcdi_mode_fail(cdx, cleanup_list);  in cdx_mcdi_timeout_cmd()
768  * @cdx: NIC through which to issue the command
790 int cdx_mcdi_rpc(struct cdx_mcdi *cdx, unsigned int cmd,  in cdx_mcdi_rpc()  argument
795 	return cdx_mcdi_rpc_sync(cdx, cmd, inbuf, inlen, outbuf, outlen,  in cdx_mcdi_rpc()
802  * @cdx: NIC through which to issue the command
819 cdx_mcdi_rpc_async(struct cdx_mcdi *cdx, unsigned int cmd,  in cdx_mcdi_rpc_async()  argument
839 	return cdx_mcdi_rpc_async_internal(cdx, cmd_item, NULL);  in cdx_mcdi_rpc_async()
842 static void _cdx_mcdi_display_error(struct cdx_mcdi *cdx, unsigned int cmd,  in _cdx_mcdi_display_error()  argument
854 static void cdx_mcdi_mode_fail(struct cdx_mcdi *cdx, struct list_head *cleanup_list)  in cdx_mcdi_mode_fail()  argument
856 	struct cdx_mcdi_iface *mcdi = cdx_mcdi_if(cdx);  in cdx_mcdi_mode_fail()