1 /* SPDX-License-Identifier: GPL-2.0-only */
4  * Copyright 2005-2006 Fen Systems Ltd.
5  * Copyright 2006-2013 Solarflare Communications Inc.
12 #include <linux/i2c-algo-bit.h>
24 	return efx->type->revision;  in ef4_nic_rev()
39 	return ((ef4_qword_t *) (channel->eventq.buf.addr)) +  in ef4_event()
40 		(index & channel->eventq_mask);  in ef4_event()
50  * Note that using a single 64-bit comparison is incorrect; even
55 	return !(EF4_DWORD_IS_ALL_ONES(event->dword[0]) |  in ef4_event_present()
56 		  EF4_DWORD_IS_ALL_ONES(event->dword[1]));  in ef4_event_present()
65 	return ((ef4_qword_t *) (tx_queue->txd.buf.addr)) + index;  in ef4_tx_desc()
71 	if (tx_queue->queue & EF4_TXQ_TYPE_OFFLOAD)  in ef4_tx_queue_partner()
72 		return tx_queue - EF4_TXQ_TYPE_OFFLOAD;  in ef4_tx_queue_partner()
83 	unsigned int empty_read_count = READ_ONCE(tx_queue->empty_read_count);  in __ef4_nic_tx_is_empty()
104 	tx_queue->empty_read_count = 0;  in ef4_nic_may_push_tx_desc()
105 	return was_empty && tx_queue->write_count - write_count == 1;  in ef4_nic_may_push_tx_desc()
112 	return ((ef4_qword_t *) (rx_queue->rxd.buf.addr)) + index;  in ef4_rx_desc()
137 /* NIC-generic software stats */
145  * struct falcon_board_type - board operations and type information
148  * @init_phy: Do board-specific PHY initialisation
151  * @monitor: Board-specific health check function
163  * struct falcon_board - board information
167  * @i2c_adap: I2C adapter for on-board peripherals
168  * @i2c_data: Data for bit-banging algorithm
182  * struct falcon_spi_device - a Falcon SPI (Serial Peripheral Interface) device
187  *	Some devices with 9-bit addresses (e.g. AT25040A EEPROM)
188  *	use bit 3 of the command byte as address bit A8, rather
189  *	than having a two-byte address.  If this flag is set, then
210 	return spi->size != 0;  in falcon_spi_present()
265  * struct falcon_nic_data - Falcon NIC state
296 	struct falcon_nic_data *data = efx->nic_data;  in falcon_board()
297 	return &data->board;  in falcon_board()
317 	return tx_queue->efx->type->tx_probe(tx_queue);  in ef4_nic_probe_tx()
321 	tx_queue->efx->type->tx_init(tx_queue);  in ef4_nic_init_tx()
325 	tx_queue->efx->type->tx_remove(tx_queue);  in ef4_nic_remove_tx()
329 	tx_queue->efx->type->tx_write(tx_queue);  in ef4_nic_push_buffers()
335 	return rx_queue->efx->type->rx_probe(rx_queue);  in ef4_nic_probe_rx()
339 	rx_queue->efx->type->rx_init(rx_queue);  in ef4_nic_init_rx()
343 	rx_queue->efx->type->rx_remove(rx_queue);  in ef4_nic_remove_rx()
347 	rx_queue->efx->type->rx_write(rx_queue);  in ef4_nic_notify_rx_desc()
351 	rx_queue->efx->type->rx_defer_refill(rx_queue);  in ef4_nic_generate_fill_event()
357 	return channel->efx->type->ev_probe(channel);  in ef4_nic_probe_eventq()
361 	return channel->efx->type->ev_init(channel);  in ef4_nic_init_eventq()
365 	channel->efx->type->ev_fini(channel);  in ef4_nic_fini_eventq()
369 	channel->efx->type->ev_remove(channel);  in ef4_nic_remove_eventq()
374 	return channel->efx->type->ev_process(channel, quota);  in ef4_nic_process_eventq()
378 	channel->efx->type->ev_read_ack(channel);  in ef4_nic_eventq_read_ack()
435 /* Some statistics are computed as A - B where A and B each increase
449 	if ((s64)(diff - *stat) > 0)  in ef4_update_diff_stat()
466 	return READ_ONCE(channel->event_test_cpu);  in ef4_nic_event_test_irq_cpu()
470 	return READ_ONCE(efx->last_irq_cpu);  in ef4_nic_irq_test_irq_cpu()