1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
7  *  fm10k_get_bus_info_generic - Generic set PCI bus info
22 		hw->bus_caps.width = fm10k_bus_width_pcie_x1;  in fm10k_get_bus_info_generic()
25 		hw->bus_caps.width = fm10k_bus_width_pcie_x2;  in fm10k_get_bus_info_generic()
28 		hw->bus_caps.width = fm10k_bus_width_pcie_x4;  in fm10k_get_bus_info_generic()
31 		hw->bus_caps.width = fm10k_bus_width_pcie_x8;  in fm10k_get_bus_info_generic()
34 		hw->bus_caps.width = fm10k_bus_width_unknown;  in fm10k_get_bus_info_generic()
40 		hw->bus_caps.speed = fm10k_bus_speed_2500;  in fm10k_get_bus_info_generic()
43 		hw->bus_caps.speed = fm10k_bus_speed_5000;  in fm10k_get_bus_info_generic()
46 		hw->bus_caps.speed = fm10k_bus_speed_8000;  in fm10k_get_bus_info_generic()
49 		hw->bus_caps.speed = fm10k_bus_speed_unknown;  in fm10k_get_bus_info_generic()
58 		hw->bus_caps.payload = fm10k_bus_payload_128;  in fm10k_get_bus_info_generic()
61 		hw->bus_caps.payload = fm10k_bus_payload_256;  in fm10k_get_bus_info_generic()
64 		hw->bus_caps.payload = fm10k_bus_payload_512;  in fm10k_get_bus_info_generic()
67 		hw->bus_caps.payload = fm10k_bus_payload_unknown;  in fm10k_get_bus_info_generic()
76 		hw->bus.width = fm10k_bus_width_pcie_x1;  in fm10k_get_bus_info_generic()
79 		hw->bus.width = fm10k_bus_width_pcie_x2;  in fm10k_get_bus_info_generic()
82 		hw->bus.width = fm10k_bus_width_pcie_x4;  in fm10k_get_bus_info_generic()
85 		hw->bus.width = fm10k_bus_width_pcie_x8;  in fm10k_get_bus_info_generic()
88 		hw->bus.width = fm10k_bus_width_unknown;  in fm10k_get_bus_info_generic()
94 		hw->bus.speed = fm10k_bus_speed_2500;  in fm10k_get_bus_info_generic()
97 		hw->bus.speed = fm10k_bus_speed_5000;  in fm10k_get_bus_info_generic()
100 		hw->bus.speed = fm10k_bus_speed_8000;  in fm10k_get_bus_info_generic()
103 		hw->bus.speed = fm10k_bus_speed_unknown;  in fm10k_get_bus_info_generic()
112 		hw->bus.payload = fm10k_bus_payload_128;  in fm10k_get_bus_info_generic()
115 		hw->bus.payload = fm10k_bus_payload_256;  in fm10k_get_bus_info_generic()
118 		hw->bus.payload = fm10k_bus_payload_512;  in fm10k_get_bus_info_generic()
121 		hw->bus.payload = fm10k_bus_payload_unknown;  in fm10k_get_bus_info_generic()
132 	/* read in value from MSI-X capability register */  in fm10k_get_pcie_msix_count_generic()
136 	/* MSI-X count is zero-based in HW */  in fm10k_get_pcie_msix_count_generic()
146  *  fm10k_get_invariants_generic - Inits constant values
153 	struct fm10k_mac_info *mac = &hw->mac;  in fm10k_get_invariants_generic()
156 	mac->dglort_map = FM10K_DGLORTMAP_NONE;  in fm10k_get_invariants_generic()
158 	/* record maximum number of MSI-X vectors */  in fm10k_get_invariants_generic()
159 	mac->max_msix_vectors = fm10k_get_pcie_msix_count_generic(hw);  in fm10k_get_invariants_generic()
165  *  fm10k_start_hw_generic - Prepare hardware for Tx/Rx
174 	hw->mac.tx_ready = true;  in fm10k_start_hw_generic()
180  *  fm10k_disable_queues_generic - Stop Tx/Rx queues
191 	hw->mac.tx_ready = false;  in fm10k_disable_queues_generic()
193 	if (FM10K_REMOVED(hw->hw_addr))  in fm10k_disable_queues_generic()
226 		time--;  in fm10k_disable_queues_generic()
235  *  fm10k_stop_hw_generic - Stop Tx/Rx units
241 	return fm10k_disable_queues_generic(hw, hw->mac.max_queues);  in fm10k_stop_hw_generic()
245  *  fm10k_read_hw_stats_32b - Reads value of 32-bit registers
247  *  @addr: address of register containing a 32-bit value
256 	u32 delta = fm10k_read_reg(hw, addr) - stat->base_l;  in fm10k_read_hw_stats_32b()
258 	if (FM10K_REMOVED(hw->hw_addr))  in fm10k_read_hw_stats_32b()
259 		stat->base_h = 0;  in fm10k_read_hw_stats_32b()
265  *  fm10k_read_hw_stats_48b - Reads value of 48-bit registers
267  *  @addr: address of register containing the lower 32-bit value
270  *  Function reads the content of 2 registers, combined to represent a 48-bit
273  *  values stored in registers and values stored in the statistic counters.
292 	delta = ((u64)(count_h - stat->base_h) << 32) + count_l;  in fm10k_read_hw_stats_48b()
293 	delta -= stat->base_l;  in fm10k_read_hw_stats_48b()
299  *  fm10k_update_hw_base_48b - Updates 48-bit statistic base value
312 	delta += stat->base_l;  in fm10k_update_hw_base_48b()
313 	stat->base_l = (u32)delta;  in fm10k_update_hw_base_48b()
316 	stat->base_h += (u32)(delta >> 32);  in fm10k_update_hw_base_48b()
320  *  fm10k_update_hw_stats_tx_q - Updates TX queue statistics counters
325  *  Function updates the TX queue statistics counters that are related to the
341 						     &q->tx_packets);  in fm10k_update_hw_stats_tx_q()
346 							   &q->tx_bytes);  in fm10k_update_hw_stats_tx_q()
348 		/* Re-Check Owner Data */  in fm10k_update_hw_stats_tx_q()
353 	/* drop non-ID bits and set VALID ID bit */  in fm10k_update_hw_stats_tx_q()
358 	if (q->tx_stats_idx == id_tx) {  in fm10k_update_hw_stats_tx_q()
359 		q->tx_packets.count += tx_packets;  in fm10k_update_hw_stats_tx_q()
360 		q->tx_bytes.count += tx_bytes;  in fm10k_update_hw_stats_tx_q()
364 	fm10k_update_hw_base_32b(&q->tx_packets, tx_packets);  in fm10k_update_hw_stats_tx_q()
365 	fm10k_update_hw_base_48b(&q->tx_bytes, tx_bytes);  in fm10k_update_hw_stats_tx_q()
367 	q->tx_stats_idx = id_tx;  in fm10k_update_hw_stats_tx_q()
371  *  fm10k_update_hw_stats_rx_q - Updates RX queue statistics counters
376  *  Function updates the RX queue statistics counters that are related to the
392 						   &q->rx_drops);  in fm10k_update_hw_stats_rx_q()
395 						     &q->rx_packets);  in fm10k_update_hw_stats_rx_q()
400 							   &q->rx_bytes);  in fm10k_update_hw_stats_rx_q()
402 		/* Re-Check Owner Data */  in fm10k_update_hw_stats_rx_q()
407 	/* drop non-ID bits and set VALID ID bit */  in fm10k_update_hw_stats_rx_q()
412 	if (q->rx_stats_idx == id_rx) {  in fm10k_update_hw_stats_rx_q()
413 		q->rx_drops.count += rx_drops;  in fm10k_update_hw_stats_rx_q()
414 		q->rx_packets.count += rx_packets;  in fm10k_update_hw_stats_rx_q()
415 		q->rx_bytes.count += rx_bytes;  in fm10k_update_hw_stats_rx_q()
419 	fm10k_update_hw_base_32b(&q->rx_drops, rx_drops);  in fm10k_update_hw_stats_rx_q()
420 	fm10k_update_hw_base_32b(&q->rx_packets, rx_packets);  in fm10k_update_hw_stats_rx_q()
421 	fm10k_update_hw_base_48b(&q->rx_bytes, rx_bytes);  in fm10k_update_hw_stats_rx_q()
423 	q->rx_stats_idx = id_rx;  in fm10k_update_hw_stats_rx_q()
427  *  fm10k_update_hw_stats_q - Updates queue statistics counters
433  *  Function updates the queue statistics counters that are related to the
448  *  fm10k_unbind_hw_stats_q - Unbind the queue counters from their queues
461 		q->rx_stats_idx = 0;  in fm10k_unbind_hw_stats_q()
462 		q->tx_stats_idx = 0;  in fm10k_unbind_hw_stats_q()
467  *  fm10k_get_host_state_generic - Returns the state of the host
476 	struct fm10k_mbx_info *mbx = &hw->mbx;  in fm10k_get_host_state_generic()
477 	struct fm10k_mac_info *mac = &hw->mac;  in fm10k_get_host_state_generic()
482 	mbx->ops.process(hw, mbx);  in fm10k_get_host_state_generic()
484 	/* If Tx is no longer enabled link should come down */  in fm10k_get_host_state_generic()
486 		mac->get_host_state = true;  in fm10k_get_host_state_generic()
489 	if (!mac->get_host_state || !(~txdctl))  in fm10k_get_host_state_generic()
493 	if (mac->tx_ready && !(txdctl & FM10K_TXDCTL_ENABLE)) {  in fm10k_get_host_state_generic()
499 	if (!mbx->timeout) {  in fm10k_get_host_state_generic()
505 	if (mbx->state != FM10K_STATE_OPEN)  in fm10k_get_host_state_generic()
509 	if (mac->dglort_map == FM10K_DGLORTMAP_NONE) {  in fm10k_get_host_state_generic()
510 		if (mac->ops.request_lport_map)  in fm10k_get_host_state_generic()
511 			ret_val = mac->ops.request_lport_map(hw);  in fm10k_get_host_state_generic()
519 	mac->get_host_state = false;  in fm10k_get_host_state_generic()
522 	*host_ready = !mac->get_host_state;  in fm10k_get_host_state_generic()