X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fena%2Fbase%2Fena_com.h;h=ca84e2e8bc8598f6427799961147196f48752bbe;hb=05b405d581486651305551a9f7295f40388d95db;hp=f58cd86a87506f46c83c8210aee3cdfd3dbbc9b6;hpb=3adcba9a8987714c1ac37161f94e6979699a8de1;p=dpdk.git diff --git a/drivers/net/ena/base/ena_com.h b/drivers/net/ena/base/ena_com.h index f58cd86a87..ca84e2e8bc 100644 --- a/drivers/net/ena/base/ena_com.h +++ b/drivers/net/ena/base/ena_com.h @@ -1,45 +1,16 @@ -/*- -* BSD LICENSE -* -* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. -* All rights reserved. -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions -* are met: -* -* * Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* * Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in -* the documentation and/or other materials provided with the -* distribution. -* * Neither the name of copyright holder nor the names of its -* contributors may be used to endorse or promote products derived -* from this software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates. + * All rights reserved. + */ #ifndef ENA_COM #define ENA_COM #include "ena_plat.h" -#include "ena_includes.h" -#define ENA_MAX_NUM_IO_QUEUES 128U +#define ENA_MAX_NUM_IO_QUEUES 128U /* We need to queues for each IO (on for Tx and one for Rx) */ -#define ENA_TOTAL_NUM_QUEUES (2 * (ENA_MAX_NUM_IO_QUEUES)) +#define ENA_TOTAL_NUM_QUEUES (2 * (ENA_MAX_NUM_IO_QUEUES)) #define ENA_MAX_HANDLERS 256 @@ -52,53 +23,28 @@ #define ADMIN_CQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_acq_entry)) #define ADMIN_AENQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aenq_entry)) +#define ENA_CDESC_RING_SIZE_ALIGNMENT (1 << 12) /* 4K */ + /*****************************************************************************/ /*****************************************************************************/ /* ENA adaptive interrupt moderation settings */ -#define ENA_INTR_LOWEST_USECS (0) -#define ENA_INTR_LOWEST_PKTS (3) -#define ENA_INTR_LOWEST_BYTES (2 * 1524) - -#define ENA_INTR_LOW_USECS (32) -#define ENA_INTR_LOW_PKTS (12) -#define ENA_INTR_LOW_BYTES (16 * 1024) - -#define ENA_INTR_MID_USECS (80) -#define ENA_INTR_MID_PKTS (48) -#define ENA_INTR_MID_BYTES (64 * 1024) - -#define ENA_INTR_HIGH_USECS (128) -#define ENA_INTR_HIGH_PKTS (96) -#define ENA_INTR_HIGH_BYTES (128 * 1024) +#define ENA_INTR_INITIAL_TX_INTERVAL_USECS ENA_INTR_INITIAL_TX_INTERVAL_USECS_PLAT +#define ENA_INTR_INITIAL_RX_INTERVAL_USECS 0 +#define ENA_DEFAULT_INTR_DELAY_RESOLUTION 1 -#define ENA_INTR_HIGHEST_USECS (192) -#define ENA_INTR_HIGHEST_PKTS (128) -#define ENA_INTR_HIGHEST_BYTES (192 * 1024) +#define ENA_HASH_KEY_SIZE 40 -#define ENA_INTR_INITIAL_TX_INTERVAL_USECS 196 -#define ENA_INTR_INITIAL_RX_INTERVAL_USECS 4 -#define ENA_INTR_DELAY_OLD_VALUE_WEIGHT 6 -#define ENA_INTR_DELAY_NEW_VALUE_WEIGHT 4 +#define ENA_HW_HINTS_NO_TIMEOUT 0xFFFF -#define ENA_INTR_MODER_LEVEL_STRIDE 1 -#define ENA_INTR_BYTE_COUNT_NOT_SUPPORTED 0xFFFFFF +#define ENA_FEATURE_MAX_QUEUE_EXT_VER 1 -#define ENA_HW_HINTS_NO_TIMEOUT 0xFFFF - -enum ena_intr_moder_level { - ENA_INTR_MODER_LOWEST = 0, - ENA_INTR_MODER_LOW, - ENA_INTR_MODER_MID, - ENA_INTR_MODER_HIGH, - ENA_INTR_MODER_HIGHEST, - ENA_INTR_MAX_NUM_OF_LEVELS, -}; - -struct ena_intr_moder_entry { - unsigned int intr_moder_interval; - unsigned int pkts_per_interval; - unsigned int bytes_per_interval; +struct ena_llq_configurations { + enum ena_admin_llq_header_location llq_header_location; + enum ena_admin_llq_ring_entry_size llq_ring_entry_size; + enum ena_admin_llq_stride_ctrl llq_stride_ctrl; + enum ena_admin_llq_num_descs_before_header llq_num_decs_before_header; + u16 llq_ring_entry_size_value; }; enum queue_direction { @@ -130,6 +76,17 @@ struct ena_com_tx_meta { u16 l4_hdr_len; /* In words */ }; +struct ena_com_llq_info { + u16 header_location_ctrl; + u16 desc_stride_ctrl; + u16 desc_list_entry_size_ctrl; + u16 desc_list_entry_size; + u16 descs_num_before_header; + u16 descs_per_entry; + u16 max_entries_in_tx_burst; + bool disable_meta_caching; +}; + struct ena_com_io_cq { struct ena_com_io_desc_addr cdesc_addr; void *bus; @@ -168,6 +125,20 @@ struct ena_com_io_cq { } ____cacheline_aligned; +struct ena_com_io_bounce_buffer_control { + u8 *base_buffer; + u16 next_to_use; + u16 buffer_size; + u16 buffers_num; /* Must be a power of 2 */ +}; + +/* This struct is to keep tracking the current location of the next llq entry */ +struct ena_com_llq_pkt_ctrl { + u8 *curr_bounce_buf; + u16 idx; + u16 descs_left_in_line; +}; + struct ena_com_io_sq { struct ena_com_io_desc_addr desc_addr; void *bus; @@ -178,8 +149,13 @@ struct ena_com_io_sq { enum queue_direction direction; enum ena_admin_placement_policy_type mem_queue_type; + bool disable_meta_caching; + u32 msix_vector; struct ena_com_tx_meta cached_tx_meta; + struct ena_com_llq_info llq_info; + struct ena_com_llq_pkt_ctrl llq_buf_ctrl; + struct ena_com_io_bounce_buffer_control bounce_buf_ctrl; u16 q_depth; u16 qid; @@ -187,10 +163,12 @@ struct ena_com_io_sq { u16 idx; u16 tail; u16 next_to_comp; + u16 llq_last_copy_tail; u32 tx_max_header_size; u8 phase; u8 desc_entry_size; u8 dma_addr_bits; + u16 entries_in_tx_burst_left; } ____cacheline_aligned; struct ena_com_admin_cq { @@ -216,16 +194,17 @@ struct ena_com_admin_sq { }; struct ena_com_stats_admin { - u32 aborted_cmd; - u32 submitted_cmd; - u32 completed_cmd; - u32 out_of_space; - u32 no_completion; + u64 aborted_cmd; + u64 submitted_cmd; + u64 completed_cmd; + u64 out_of_space; + u64 no_completion; }; struct ena_com_admin_queue { void *q_dmadev; void *bus; + struct ena_com_dev *ena_dev; ena_spinlock_t q_lock; /* spinlock for the admin queue */ struct ena_comp_ctx *comp_ctx; @@ -237,6 +216,9 @@ struct ena_com_admin_queue { /* Indicate if the admin queue should poll for completion */ bool polling; + /* Define if fallback to polling mode should occur */ + bool auto_polling; + u16 curr_cmd_id; /* Indicate that the ena was initialized and can @@ -318,6 +300,7 @@ struct ena_com_dev { void __iomem *mem_bar; void *dmadev; void *bus; + ena_netdev *net_device; enum ena_admin_placement_policy_type tx_mem_queue_type; u32 tx_max_header_size; @@ -333,16 +316,28 @@ struct ena_com_dev { struct ena_host_attribute host_attr; bool adaptive_coalescing; u16 intr_delay_resolution; + + /* interrupt moderation intervals are in usec divided by + * intr_delay_resolution, which is supplied by the device. + */ u32 intr_moder_tx_interval; + u32 intr_moder_rx_interval; + struct ena_intr_moder_entry *intr_moder_tbl; + + struct ena_com_llq_info llq_info; + + u32 ena_min_poll_delay_us; }; struct ena_com_dev_get_features_ctx { struct ena_admin_queue_feature_desc max_queues; + struct ena_admin_queue_ext_feature_desc max_queue_ext; struct ena_admin_device_attr_feature_desc dev_attr; struct ena_admin_feature_aenq_desc aenq; struct ena_admin_feature_offload_desc offload; struct ena_admin_ena_hw_hints hw_hints; + struct ena_admin_feature_llq_desc llq; }; struct ena_com_create_io_ctx { @@ -380,7 +375,7 @@ extern "C" { */ int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev); -/* ena_com_set_mmio_read_mode - Enable/disable the mmio reg read mechanism +/* ena_com_set_mmio_read_mode - Enable/disable the indirect mmio reg read mechanism * @ena_dev: ENA communication layer struct * @readless_supported: readless mode (enable/disable) */ @@ -401,8 +396,6 @@ void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev); /* ena_com_admin_init - Init the admin and the async queues * @ena_dev: ENA communication layer struct * @aenq_handlers: Those handlers to be called upon event. - * @init_spinlock: Indicate if this method should init the admin spinlock or - * the spinlock was init before (for example, in a case of FLR). * * Initialize the admin submission and completion queues. * Initialize the asynchronous events notification queues. @@ -410,8 +403,7 @@ void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev); * @return - 0 on success, negative value on failure. */ int ena_com_admin_init(struct ena_com_dev *ena_dev, - struct ena_aenq_handlers *aenq_handlers, - bool init_spinlock); + struct ena_aenq_handlers *aenq_handlers); /* ena_com_admin_destroy - Destroy the admin and the async events queues. * @ena_dev: ENA communication layer struct @@ -491,7 +483,7 @@ bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev); */ void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling); -/* ena_com_set_admin_polling_mode - Get the admin completion queue polling mode +/* ena_com_get_admin_polling_mode - Get the admin completion queue polling mode * @ena_dev: ENA communication layer struct * * Get the admin completion mode. @@ -501,12 +493,23 @@ void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling); * * @return state */ -bool ena_com_get_ena_admin_polling_mode(struct ena_com_dev *ena_dev); +bool ena_com_get_admin_polling_mode(struct ena_com_dev *ena_dev); + +/* ena_com_set_admin_auto_polling_mode - Enable autoswitch to polling mode + * @ena_dev: ENA communication layer struct + * @polling: Enable/Disable polling mode + * + * Set the autopolling mode. + * If autopolling is on: + * In case of missing interrupt when data is available switch to polling. + */ +void ena_com_set_admin_auto_polling_mode(struct ena_com_dev *ena_dev, + bool polling); /* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler * @ena_dev: ENA communication layer struct * - * This method go over the admin completion queue and wake up all the pending + * This method goes over the admin completion queue and wakes up all the pending * threads that wait on the commands wait event. * * @note: Should be called after MSI-X interrupt. @@ -516,10 +519,10 @@ void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev); /* ena_com_aenq_intr_handler - AENQ interrupt handler * @ena_dev: ENA communication layer struct * - * This method go over the async event notification queue and call the proper + * This method goes over the async event notification queue and calls the proper * aenq handler. */ -void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data); +void ena_com_aenq_intr_handler(struct ena_com_dev *ena_dev, void *data); /* ena_com_abort_admin_commands - Abort all the outstanding admin commands. * @ena_dev: ENA communication layer struct @@ -533,14 +536,14 @@ void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev); /* ena_com_wait_for_abort_completion - Wait for admin commands abort. * @ena_dev: ENA communication layer struct * - * This method wait until all the outstanding admin commands will be completed. + * This method waits until all the outstanding admin commands are completed. */ void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev); /* ena_com_validate_version - Validate the device parameters * @ena_dev: ENA communication layer struct * - * This method validate the device parameters are the same as the saved + * This method verifies the device parameters are the same as the saved * parameters in ena_dev. * This method is useful after device reset, to validate the device mac address * and the device offloads are the same as before the reset. @@ -599,6 +602,15 @@ int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev, int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev, struct ena_admin_basic_stats *stats); +/* ena_com_get_eni_stats - Get extended network interface statistics + * @ena_dev: ENA communication layer struct + * @stats: stats return value + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_get_eni_stats(struct ena_com_dev *ena_dev, + struct ena_admin_eni_stats *stats); + /* ena_com_set_dev_mtu - Configure the device mtu. * @ena_dev: ENA communication layer struct * @mtu: mtu value @@ -635,6 +647,14 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size); */ void ena_com_rss_destroy(struct ena_com_dev *ena_dev); +/* ena_com_get_current_hash_function - Get RSS hash function + * @ena_dev: ENA communication layer struct + * + * Return the current hash function. + * @return: 0 or one of the ena_admin_hash_functions values. + */ +int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev); + /* ena_com_fill_hash_function - Fill RSS hash function * @ena_dev: ENA communication layer struct * @func: The hash function (Toeplitz or crc) @@ -666,23 +686,32 @@ int ena_com_fill_hash_function(struct ena_com_dev *ena_dev, */ int ena_com_set_hash_function(struct ena_com_dev *ena_dev); -/* ena_com_get_hash_function - Retrieve the hash function and the hash key - * from the device. +/* ena_com_get_hash_function - Retrieve the hash function from the device. * @ena_dev: ENA communication layer struct * @func: hash function - * @key: hash key * - * Retrieve the hash function and the hash key from the device. + * Retrieve the hash function from the device. * - * @note: If the caller called ena_com_fill_hash_function but didn't flash + * @note: If the caller called ena_com_fill_hash_function but didn't flush * it to the device, the new configuration will be lost. * * @return: 0 on Success and negative value otherwise. */ int ena_com_get_hash_function(struct ena_com_dev *ena_dev, - enum ena_admin_hash_functions *func, - u8 *key); + enum ena_admin_hash_functions *func); +/* ena_com_get_hash_key - Retrieve the hash key + * @ena_dev: ENA communication layer struct + * @key: hash key + * + * Retrieve the hash key. + * + * @note: If the caller called ena_com_fill_hash_key but didn't flush + * it to the device, the new configuration will be lost. + * + * @return: 0 on Success and negative value otherwise. + */ +int ena_com_get_hash_key(struct ena_com_dev *ena_dev, u8 *key); /* ena_com_fill_hash_ctrl - Fill RSS hash control * @ena_dev: ENA communication layer struct. * @proto: The protocol to configure. @@ -717,7 +746,7 @@ int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev); * * Retrieve the hash control from the device. * - * @note, If the caller called ena_com_fill_hash_ctrl but didn't flash + * @note: If the caller called ena_com_fill_hash_ctrl but didn't flush * it to the device, the new configuration will be lost. * * @return: 0 on Success and negative value otherwise. @@ -769,7 +798,7 @@ int ena_com_indirect_table_set(struct ena_com_dev *ena_dev); * * Retrieve the RSS indirection table from the device. * - * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flash + * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flush * it to the device, the new configuration will be lost. * * @return: 0 on Success and negative value otherwise. @@ -795,14 +824,14 @@ int ena_com_allocate_debug_area(struct ena_com_dev *ena_dev, /* ena_com_delete_debug_area - Free the debug area resources. * @ena_dev: ENA communication layer struct * - * Free the allocate debug area. + * Free the allocated debug area. */ void ena_com_delete_debug_area(struct ena_com_dev *ena_dev); /* ena_com_delete_host_info - Free the host info resources. * @ena_dev: ENA communication layer struct * - * Free the allocate host info. + * Free the allocated host info. */ void ena_com_delete_host_info(struct ena_com_dev *ena_dev); @@ -843,9 +872,9 @@ int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev, * @cmd_completion: command completion return value. * @cmd_comp_size: command completion size. - * Submit an admin command and then wait until the device will return a + * Submit an admin command and then wait until the device returns a * completion. - * The completion will be copyed into cmd_comp. + * The completion will be copied into cmd_comp. * * @return - 0 on success, negative value on failure. */ @@ -862,11 +891,6 @@ int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue, */ int ena_com_init_interrupt_moderation(struct ena_com_dev *ena_dev); -/* ena_com_destroy_interrupt_moderation - Destroy interrupt moderation resources - * @ena_dev: ENA communication layer struct - */ -void ena_com_destroy_interrupt_moderation(struct ena_com_dev *ena_dev); - /* ena_com_interrupt_moderation_supported - Return if interrupt moderation * capability is supported by the device. * @@ -874,12 +898,6 @@ void ena_com_destroy_interrupt_moderation(struct ena_com_dev *ena_dev); */ bool ena_com_interrupt_moderation_supported(struct ena_com_dev *ena_dev); -/* ena_com_config_default_interrupt_moderation_table - Restore the interrupt - * moderation table back to the default parameters. - * @ena_dev: ENA communication layer struct - */ -void ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev); - /* ena_com_update_nonadaptive_moderation_interval_tx - Update the * non-adaptive interval in Tx direction. * @ena_dev: ENA communication layer struct @@ -916,28 +934,35 @@ unsigned int ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev * */ unsigned int ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev); -/* ena_com_init_intr_moderation_entry - Update a single entry in the interrupt - * moderation table. +/* ena_com_config_dev_mode - Configure the placement policy of the device. * @ena_dev: ENA communication layer struct - * @level: Interrupt moderation table level - * @entry: Entry value + * @llq_features: LLQ feature descriptor, retrieve via + * ena_com_get_dev_attr_feat. + * @ena_llq_config: The default driver LLQ parameters configurations + */ +int ena_com_config_dev_mode(struct ena_com_dev *ena_dev, + struct ena_admin_feature_llq_desc *llq_features, + struct ena_llq_configurations *llq_default_config); + +/* ena_com_io_sq_to_ena_dev - Extract ena_com_dev using contained field io_sq. + * @io_sq: IO submit queue struct * - * Update a single entry in the interrupt moderation table. + * @return - ena_com_dev struct extracted from io_sq */ -void ena_com_init_intr_moderation_entry(struct ena_com_dev *ena_dev, - enum ena_intr_moder_level level, - struct ena_intr_moder_entry *entry); +static inline struct ena_com_dev *ena_com_io_sq_to_ena_dev(struct ena_com_io_sq *io_sq) +{ + return container_of(io_sq, struct ena_com_dev, io_sq_queues[io_sq->qid]); +} -/* ena_com_get_intr_moderation_entry - Init ena_intr_moder_entry. - * @ena_dev: ENA communication layer struct - * @level: Interrupt moderation table level - * @entry: Entry to fill. +/* ena_com_io_cq_to_ena_dev - Extract ena_com_dev using contained field io_cq. + * @io_sq: IO submit queue struct * - * Initialize the entry according to the adaptive interrupt moderation table. + * @return - ena_com_dev struct extracted from io_sq */ -void ena_com_get_intr_moderation_entry(struct ena_com_dev *ena_dev, - enum ena_intr_moder_level level, - struct ena_intr_moder_entry *entry); +static inline struct ena_com_dev *ena_com_io_cq_to_ena_dev(struct ena_com_io_cq *io_cq) +{ + return container_of(io_cq, struct ena_com_dev, io_cq_queues[io_cq->qid]); +} static inline bool ena_com_get_adaptive_moderation_enabled(struct ena_com_dev *ena_dev) { @@ -954,80 +979,11 @@ static inline void ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_d ena_dev->adaptive_coalescing = false; } -/* ena_com_calculate_interrupt_delay - Calculate new interrupt delay - * @ena_dev: ENA communication layer struct - * @pkts: Number of packets since the last update - * @bytes: Number of bytes received since the last update. - * @smoothed_interval: Returned interval - * @moder_tbl_idx: Current table level as input update new level as return - * value. - */ -static inline void ena_com_calculate_interrupt_delay(struct ena_com_dev *ena_dev, - unsigned int pkts, - unsigned int bytes, - unsigned int *smoothed_interval, - unsigned int *moder_tbl_idx) -{ - enum ena_intr_moder_level curr_moder_idx, new_moder_idx; - struct ena_intr_moder_entry *curr_moder_entry; - struct ena_intr_moder_entry *pred_moder_entry; - struct ena_intr_moder_entry *new_moder_entry; - struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; - unsigned int interval; - - /* We apply adaptive moderation on Rx path only. - * Tx uses static interrupt moderation. - */ - if (!pkts || !bytes) - /* Tx interrupt, or spurious interrupt, - * in both cases we just use same delay values - */ - return; - - curr_moder_idx = (enum ena_intr_moder_level)(*moder_tbl_idx); - if (unlikely(curr_moder_idx >= ENA_INTR_MAX_NUM_OF_LEVELS)) { - ena_trc_err("Wrong moderation index %u\n", curr_moder_idx); - return; - } - - curr_moder_entry = &intr_moder_tbl[curr_moder_idx]; - new_moder_idx = curr_moder_idx; - - if (curr_moder_idx == ENA_INTR_MODER_LOWEST) { - if ((pkts > curr_moder_entry->pkts_per_interval) || - (bytes > curr_moder_entry->bytes_per_interval)) - new_moder_idx = - (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE); - } else { - pred_moder_entry = &intr_moder_tbl[curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE]; - - if ((pkts <= pred_moder_entry->pkts_per_interval) || - (bytes <= pred_moder_entry->bytes_per_interval)) - new_moder_idx = - (enum ena_intr_moder_level)(curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE); - else if ((pkts > curr_moder_entry->pkts_per_interval) || - (bytes > curr_moder_entry->bytes_per_interval)) { - if (curr_moder_idx != ENA_INTR_MODER_HIGHEST) - new_moder_idx = - (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE); - } - } - new_moder_entry = &intr_moder_tbl[new_moder_idx]; - - interval = new_moder_entry->intr_moder_interval; - *smoothed_interval = ( - (interval * ENA_INTR_DELAY_NEW_VALUE_WEIGHT + - ENA_INTR_DELAY_OLD_VALUE_WEIGHT * (*smoothed_interval)) + 5) / - 10; - - *moder_tbl_idx = new_moder_idx; -} - /* ena_com_update_intr_reg - Prepare interrupt register * @intr_reg: interrupt register to update. * @rx_delay_interval: Rx interval in usecs * @tx_delay_interval: Tx interval in usecs - * @unmask: unask enable/disable + * @unmask: unmask enable/disable * * Prepare interrupt update register with the supplied parameters. */ @@ -1048,6 +1004,23 @@ static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg, intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK; } +static inline u8 *ena_com_get_next_bounce_buffer(struct ena_com_io_bounce_buffer_control *bounce_buf_ctrl) +{ + u16 size, buffers_num; + u8 *buf; + + size = bounce_buf_ctrl->buffer_size; + buffers_num = bounce_buf_ctrl->buffers_num; + + buf = bounce_buf_ctrl->base_buffer + + (bounce_buf_ctrl->next_to_use++ & (buffers_num - 1)) * size; + + prefetchw(bounce_buf_ctrl->base_buffer + + (bounce_buf_ctrl->next_to_use & (buffers_num - 1)) * size); + + return buf; +} + #if defined(__cplusplus) } #endif /* __cplusplus */