465 efx_farch_build_rx_desc(struct efx_rx_queue *rx_queue, unsigned index)  in efx_farch_build_rx_desc()  argument
470 	rxd = efx_rx_desc(rx_queue, index);  in efx_farch_build_rx_desc()
471 	rx_buf = efx_rx_buffer(rx_queue, index);  in efx_farch_build_rx_desc()
475 			     rx_queue->efx->type->rx_buffer_padding,  in efx_farch_build_rx_desc()
483 void efx_farch_rx_write(struct efx_rx_queue *rx_queue)  in efx_farch_rx_write()  argument
485 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_rx_write()
489 	while (rx_queue->notified_count != rx_queue->added_count) {  in efx_farch_rx_write()
491 			rx_queue,  in efx_farch_rx_write()
492 			rx_queue->notified_count & rx_queue->ptr_mask);  in efx_farch_rx_write()
493 		++rx_queue->notified_count;  in efx_farch_rx_write()
497 	write_ptr = rx_queue->added_count & rx_queue->ptr_mask;  in efx_farch_rx_write()
500 			efx_rx_queue_index(rx_queue));  in efx_farch_rx_write()
503 int efx_farch_rx_probe(struct efx_rx_queue *rx_queue)  in efx_farch_rx_probe()  argument
505 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_rx_probe()
508 	entries = rx_queue->ptr_mask + 1;  in efx_farch_rx_probe()
509 	return efx_alloc_special_buffer(efx, &rx_queue->rxd,  in efx_farch_rx_probe()
513 void efx_farch_rx_init(struct efx_rx_queue *rx_queue)  in efx_farch_rx_init()  argument
516 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_rx_init()
524 		  efx_rx_queue_index(rx_queue), rx_queue->rxd.index,  in efx_farch_rx_init()
525 		  rx_queue->rxd.index + rx_queue->rxd.entries - 1);  in efx_farch_rx_init()
527 	rx_queue->scatter_n = 0;  in efx_farch_rx_init()
530 	efx_init_special_buffer(efx, &rx_queue->rxd);  in efx_farch_rx_init()
536 			      FRF_AZ_RX_DESCQ_BUF_BASE_ID, rx_queue->rxd.index,  in efx_farch_rx_init()
538 			      efx_rx_queue_channel(rx_queue)->channel,  in efx_farch_rx_init()
541 			      efx_rx_queue_index(rx_queue),  in efx_farch_rx_init()
543 			      __ffs(rx_queue->rxd.entries),  in efx_farch_rx_init()
548 			 efx_rx_queue_index(rx_queue));  in efx_farch_rx_init()
551 static void efx_farch_flush_rx_queue(struct efx_rx_queue *rx_queue)  in efx_farch_flush_rx_queue()  argument
553 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_flush_rx_queue()
559 			     efx_rx_queue_index(rx_queue));  in efx_farch_flush_rx_queue()
563 void efx_farch_rx_fini(struct efx_rx_queue *rx_queue)  in efx_farch_rx_fini()  argument
566 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_rx_fini()
571 			 efx_rx_queue_index(rx_queue));  in efx_farch_rx_fini()
574 	efx_fini_special_buffer(efx, &rx_queue->rxd);  in efx_farch_rx_fini()
578 void efx_farch_rx_remove(struct efx_rx_queue *rx_queue)  in efx_farch_rx_remove()  argument
580 	efx_free_special_buffer(rx_queue->efx, &rx_queue->rxd);  in efx_farch_rx_remove()
650 	struct efx_rx_queue *rx_queue;  in efx_farch_do_flush()  local
658 		efx_for_each_channel_rx_queue(rx_queue, channel) {  in efx_farch_do_flush()
659 			rx_queue->flush_pending = true;  in efx_farch_do_flush()
680 			efx_for_each_channel_rx_queue(rx_queue, channel) {  in efx_farch_do_flush()
685 				if (rx_queue->flush_pending) {  in efx_farch_do_flush()
686 					rx_queue->flush_pending = false;  in efx_farch_do_flush()
689 					efx_farch_flush_rx_queue(rx_queue);  in efx_farch_do_flush()
720 	struct efx_rx_queue *rx_queue;  in efx_farch_fini_dmaq()  local
733 			efx_for_each_channel_rx_queue(rx_queue, channel)  in efx_farch_fini_dmaq()
734 				efx_farch_rx_fini(rx_queue);  in efx_farch_fini_dmaq()
863 static u16 efx_farch_handle_rx_not_ok(struct efx_rx_queue *rx_queue,  in efx_farch_handle_rx_not_ok()  argument
866 	struct efx_channel *channel = efx_rx_queue_channel(rx_queue);  in efx_farch_handle_rx_not_ok()
867 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_handle_rx_not_ok()
911 			  efx_rx_queue_index(rx_queue), EFX_QWORD_VAL(*event),  in efx_farch_handle_rx_not_ok()
941 efx_farch_handle_rx_bad_index(struct efx_rx_queue *rx_queue, unsigned index)  in efx_farch_handle_rx_bad_index()  argument
943 	struct efx_channel *channel = efx_rx_queue_channel(rx_queue);  in efx_farch_handle_rx_bad_index()
944 	struct efx_nic *efx = rx_queue->efx;  in efx_farch_handle_rx_bad_index()
947 	if (rx_queue->scatter_n &&  in efx_farch_handle_rx_bad_index()
948 	    index == ((rx_queue->removed_count + rx_queue->scatter_n - 1) &  in efx_farch_handle_rx_bad_index()
949 		      rx_queue->ptr_mask)) {  in efx_farch_handle_rx_bad_index()
954 	expected = rx_queue->removed_count & rx_queue->ptr_mask;  in efx_farch_handle_rx_bad_index()
955 	dropped = (index - expected) & rx_queue->ptr_mask;  in efx_farch_handle_rx_bad_index()
979 	struct efx_rx_queue *rx_queue;  in efx_farch_handle_rx_event()  local
990 	rx_queue = efx_channel_get_rx_queue(channel);  in efx_farch_handle_rx_event()
993 	expected_ptr = ((rx_queue->removed_count + rx_queue->scatter_n) &  in efx_farch_handle_rx_event()
994 			rx_queue->ptr_mask);  in efx_farch_handle_rx_event()
998 	    unlikely(rx_ev_sop != (rx_queue->scatter_n == 0))) {  in efx_farch_handle_rx_event()
1000 		    !efx_farch_handle_rx_bad_index(rx_queue, rx_ev_desc_ptr))  in efx_farch_handle_rx_event()
1004 		if (rx_queue->scatter_n) {  in efx_farch_handle_rx_event()
1006 				rx_queue,  in efx_farch_handle_rx_event()
1007 				rx_queue->removed_count & rx_queue->ptr_mask,  in efx_farch_handle_rx_event()
1008 				rx_queue->scatter_n, 0, EFX_RX_PKT_DISCARD);  in efx_farch_handle_rx_event()
1009 			rx_queue->removed_count += rx_queue->scatter_n;  in efx_farch_handle_rx_event()
1010 			rx_queue->scatter_n = 0;  in efx_farch_handle_rx_event()
1020 				rx_queue,  in efx_farch_handle_rx_event()
1021 				rx_queue->removed_count & rx_queue->ptr_mask,  in efx_farch_handle_rx_event()
1023 			++rx_queue->removed_count;  in efx_farch_handle_rx_event()
1028 	++rx_queue->scatter_n;  in efx_farch_handle_rx_event()
1053 		flags = efx_farch_handle_rx_not_ok(rx_queue, event);  in efx_farch_handle_rx_event()
1071 	efx_siena_rx_packet(rx_queue,  in efx_farch_handle_rx_event()
1072 			    rx_queue->removed_count & rx_queue->ptr_mask,  in efx_farch_handle_rx_event()
1073 			    rx_queue->scatter_n, rx_ev_byte_cnt, flags);  in efx_farch_handle_rx_event()
1074 	rx_queue->removed_count += rx_queue->scatter_n;  in efx_farch_handle_rx_event()
1075 	rx_queue->scatter_n = 0;  in efx_farch_handle_rx_event()
1107 	struct efx_rx_queue *rx_queue;  in efx_farch_handle_rx_flush_done()  local
1118 	rx_queue = efx_channel_get_rx_queue(channel);  in efx_farch_handle_rx_flush_done()
1123 		rx_queue->flush_pending = true;  in efx_farch_handle_rx_flush_done()
1126 		efx_farch_magic_event(efx_rx_queue_channel(rx_queue),  in efx_farch_handle_rx_flush_done()
1127 				      EFX_CHANNEL_MAGIC_RX_DRAIN(rx_queue));  in efx_farch_handle_rx_flush_done()
1149 	struct efx_rx_queue *rx_queue =  in efx_farch_handle_generated_event()  local
1159 	} else if (rx_queue && magic == EFX_CHANNEL_MAGIC_FILL(rx_queue)) {  in efx_farch_handle_generated_event()
1163 		efx_siena_fast_push_rx_descriptors(rx_queue, true);  in efx_farch_handle_generated_event()
1164 	} else if (rx_queue && magic == EFX_CHANNEL_MAGIC_RX_DRAIN(rx_queue)) {  in efx_farch_handle_generated_event()
1407 void efx_farch_rx_defer_refill(struct efx_rx_queue *rx_queue)  in efx_farch_rx_defer_refill()  argument
1409 	efx_farch_magic_event(efx_rx_queue_channel(rx_queue),  in efx_farch_rx_defer_refill()
1410 			      EFX_CHANNEL_MAGIC_FILL(rx_queue));  in efx_farch_rx_defer_refill()