ena.c (d209ffee155dd5e505f174a356c8f50c96ebf57e) ena.c (90232d18ca4f7a5a3073a8279a9b9d3228df5f87)
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2015-2021 Amazon.com, Inc. or its affiliates.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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150static int ena_get_dev_offloads(struct ena_com_dev_get_features_ctx *);
151static void ena_update_host_info(struct ena_admin_host_info *, if_t);
152static void ena_update_hwassist(struct ena_adapter *);
153static int ena_setup_ifnet(device_t, struct ena_adapter *,
154 struct ena_com_dev_get_features_ctx *);
155static int ena_enable_wc(device_t, struct resource *);
156static int ena_set_queues_placement_policy(device_t, struct ena_com_dev *,
157 struct ena_admin_feature_llq_desc *, struct ena_llq_configurations *);
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2015-2021 Amazon.com, Inc. or its affiliates.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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150static int ena_get_dev_offloads(struct ena_com_dev_get_features_ctx *);
151static void ena_update_host_info(struct ena_admin_host_info *, if_t);
152static void ena_update_hwassist(struct ena_adapter *);
153static int ena_setup_ifnet(device_t, struct ena_adapter *,
154 struct ena_com_dev_get_features_ctx *);
155static int ena_enable_wc(device_t, struct resource *);
156static int ena_set_queues_placement_policy(device_t, struct ena_com_dev *,
157 struct ena_admin_feature_llq_desc *, struct ena_llq_configurations *);
158static int ena_map_llq_mem_bar(device_t, struct ena_com_dev *);
158static uint32_t ena_calc_max_io_queue_num(device_t, struct ena_com_dev *,
159 struct ena_com_dev_get_features_ctx *);
160static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *);
161static void ena_config_host_info(struct ena_com_dev *, device_t);
162static int ena_attach(device_t);
163static int ena_detach(device_t);
164static int ena_device_init(struct ena_adapter *, device_t,
165 struct ena_com_dev_get_features_ctx *, int *);

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2566 return (EOPNOTSUPP);
2567}
2568
2569static int
2570ena_set_queues_placement_policy(device_t pdev, struct ena_com_dev *ena_dev,
2571 struct ena_admin_feature_llq_desc *llq,
2572 struct ena_llq_configurations *llq_default_configurations)
2573{
159static uint32_t ena_calc_max_io_queue_num(device_t, struct ena_com_dev *,
160 struct ena_com_dev_get_features_ctx *);
161static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *);
162static void ena_config_host_info(struct ena_com_dev *, device_t);
163static int ena_attach(device_t);
164static int ena_detach(device_t);
165static int ena_device_init(struct ena_adapter *, device_t,
166 struct ena_com_dev_get_features_ctx *, int *);

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2567 return (EOPNOTSUPP);
2568}
2569
2570static int
2571ena_set_queues_placement_policy(device_t pdev, struct ena_com_dev *ena_dev,
2572 struct ena_admin_feature_llq_desc *llq,
2573 struct ena_llq_configurations *llq_default_configurations)
2574{
2574 struct ena_adapter *adapter = device_get_softc(pdev);
2575 int rc, rid;
2575 int rc;
2576 uint32_t llq_feature_mask;
2577
2578 llq_feature_mask = 1 << ENA_ADMIN_LLQ;
2579 if (!(ena_dev->supported_features & llq_feature_mask)) {
2580 ena_log(pdev, WARN,
2581 "LLQ is not supported. Fallback to host mode policy.\n");
2582 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
2583 return (0);
2584 }
2585
2576 uint32_t llq_feature_mask;
2577
2578 llq_feature_mask = 1 << ENA_ADMIN_LLQ;
2579 if (!(ena_dev->supported_features & llq_feature_mask)) {
2580 ena_log(pdev, WARN,
2581 "LLQ is not supported. Fallback to host mode policy.\n");
2582 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
2583 return (0);
2584 }
2585
2586 if (ena_dev->mem_bar == NULL) {
2587 ena_log(pdev, WARN,
2588 "LLQ is advertised as supported but device doesn't expose mem bar.\n");
2589 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
2590 return (0);
2591 }
2592
2586 rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
2587 if (unlikely(rc != 0)) {
2588 ena_log(pdev, WARN, "Failed to configure the device mode. "
2589 "Fallback to host mode policy.\n");
2590 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
2593 rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
2594 if (unlikely(rc != 0)) {
2595 ena_log(pdev, WARN, "Failed to configure the device mode. "
2596 "Fallback to host mode policy.\n");
2597 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
2591 return (0);
2592 }
2593
2598 }
2599
2594 /* Nothing to config, exit */
2595 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
2596 return (0);
2600 return (0);
2601}
2597
2602
2603static int
2604ena_map_llq_mem_bar(device_t pdev, struct ena_com_dev *ena_dev)
2605{
2606 struct ena_adapter *adapter = device_get_softc(pdev);
2607 int rc, rid;
2608
2598 /* Try to allocate resources for LLQ bar */
2599 rid = PCIR_BAR(ENA_MEM_BAR);
2600 adapter->memory = bus_alloc_resource_any(pdev, SYS_RES_MEMORY,
2601 &rid, RF_ACTIVE);
2602 if (unlikely(adapter->memory == NULL)) {
2603 ena_log(pdev, WARN, "unable to allocate LLQ bar resource. "
2604 "Fallback to host mode policy.\n");
2605 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;

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3590 if (unlikely(rc != 0)) {
3591 ena_log(pdev, ERR, "ENA device init failed! (err: %d)\n", rc);
3592 rc = ENXIO;
3593 goto err_bus_free;
3594 }
3595
3596 set_default_llq_configurations(&llq_config, &get_feat_ctx.llq);
3597
2609 /* Try to allocate resources for LLQ bar */
2610 rid = PCIR_BAR(ENA_MEM_BAR);
2611 adapter->memory = bus_alloc_resource_any(pdev, SYS_RES_MEMORY,
2612 &rid, RF_ACTIVE);
2613 if (unlikely(adapter->memory == NULL)) {
2614 ena_log(pdev, WARN, "unable to allocate LLQ bar resource. "
2615 "Fallback to host mode policy.\n");
2616 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;

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3601 if (unlikely(rc != 0)) {
3602 ena_log(pdev, ERR, "ENA device init failed! (err: %d)\n", rc);
3603 rc = ENXIO;
3604 goto err_bus_free;
3605 }
3606
3607 set_default_llq_configurations(&llq_config, &get_feat_ctx.llq);
3608
3609 rc = ena_map_llq_mem_bar(pdev, ena_dev);
3610 if (unlikely(rc != 0)) {
3611 ena_log(pdev, ERR, "failed to map ENA mem bar");
3612 goto err_com_free;
3613 }
3614
3598 rc = ena_set_queues_placement_policy(pdev, ena_dev, &get_feat_ctx.llq,
3599 &llq_config);
3600 if (unlikely(rc != 0)) {
3601 ena_log(pdev, ERR, "failed to set placement policy\n");
3602 goto err_com_free;
3603 }
3604
3605 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)

--- 337 unchanged lines hidden --- 		3615 rc = ena_set_queues_placement_policy(pdev, ena_dev, &get_feat_ctx.llq,
3616 &llq_config);
3617 if (unlikely(rc != 0)) {
3618 ena_log(pdev, ERR, "failed to set placement policy\n");
3619 goto err_com_free;
3620 }
3621
3622 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)

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