11738cd3eSNetanel Belgazal /* 21738cd3eSNetanel Belgazal * Copyright 2015 Amazon.com, Inc. or its affiliates. 31738cd3eSNetanel Belgazal * 41738cd3eSNetanel Belgazal * This software is available to you under a choice of one of two 51738cd3eSNetanel Belgazal * licenses. You may choose to be licensed under the terms of the GNU 61738cd3eSNetanel Belgazal * General Public License (GPL) Version 2, available from the file 71738cd3eSNetanel Belgazal * COPYING in the main directory of this source tree, or the 81738cd3eSNetanel Belgazal * BSD license below: 91738cd3eSNetanel Belgazal * 101738cd3eSNetanel Belgazal * Redistribution and use in source and binary forms, with or 111738cd3eSNetanel Belgazal * without modification, are permitted provided that the following 121738cd3eSNetanel Belgazal * conditions are met: 131738cd3eSNetanel Belgazal * 141738cd3eSNetanel Belgazal * - Redistributions of source code must retain the above 151738cd3eSNetanel Belgazal * copyright notice, this list of conditions and the following 161738cd3eSNetanel Belgazal * disclaimer. 171738cd3eSNetanel Belgazal * 181738cd3eSNetanel Belgazal * - Redistributions in binary form must reproduce the above 191738cd3eSNetanel Belgazal * copyright notice, this list of conditions and the following 201738cd3eSNetanel Belgazal * disclaimer in the documentation and/or other materials 211738cd3eSNetanel Belgazal * provided with the distribution. 221738cd3eSNetanel Belgazal * 231738cd3eSNetanel Belgazal * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 241738cd3eSNetanel Belgazal * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 251738cd3eSNetanel Belgazal * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 261738cd3eSNetanel Belgazal * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 271738cd3eSNetanel Belgazal * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 281738cd3eSNetanel Belgazal * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 291738cd3eSNetanel Belgazal * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 301738cd3eSNetanel Belgazal * SOFTWARE. 311738cd3eSNetanel Belgazal */ 321738cd3eSNetanel Belgazal 331738cd3eSNetanel Belgazal #ifndef ENA_COM 341738cd3eSNetanel Belgazal #define ENA_COM 351738cd3eSNetanel Belgazal 36a8496eb8SNetanel Belgazal #include <linux/compiler.h> 371738cd3eSNetanel Belgazal #include <linux/delay.h> 381738cd3eSNetanel Belgazal #include <linux/dma-mapping.h> 391738cd3eSNetanel Belgazal #include <linux/gfp.h> 40689b2bdaSArthur Kiyanovski #include <linux/io.h> 4100f17a82SArthur Kiyanovski #include <linux/prefetch.h> 421738cd3eSNetanel Belgazal #include <linux/sched.h> 431738cd3eSNetanel Belgazal #include <linux/sizes.h> 441738cd3eSNetanel Belgazal #include <linux/spinlock.h> 451738cd3eSNetanel Belgazal #include <linux/types.h> 461738cd3eSNetanel Belgazal #include <linux/wait.h> 471738cd3eSNetanel Belgazal 481738cd3eSNetanel Belgazal #include "ena_common_defs.h" 491738cd3eSNetanel Belgazal #include "ena_admin_defs.h" 501738cd3eSNetanel Belgazal #include "ena_eth_io_defs.h" 511738cd3eSNetanel Belgazal #include "ena_regs_defs.h" 521738cd3eSNetanel Belgazal 531738cd3eSNetanel Belgazal #undef pr_fmt 541738cd3eSNetanel Belgazal #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 551738cd3eSNetanel Belgazal 561738cd3eSNetanel Belgazal #define ENA_MAX_NUM_IO_QUEUES 128U 571738cd3eSNetanel Belgazal /* We need to queues for each IO (on for Tx and one for Rx) */ 581738cd3eSNetanel Belgazal #define ENA_TOTAL_NUM_QUEUES (2 * (ENA_MAX_NUM_IO_QUEUES)) 591738cd3eSNetanel Belgazal 601738cd3eSNetanel Belgazal #define ENA_MAX_HANDLERS 256 611738cd3eSNetanel Belgazal 621738cd3eSNetanel Belgazal #define ENA_MAX_PHYS_ADDR_SIZE_BITS 48 631738cd3eSNetanel Belgazal 641738cd3eSNetanel Belgazal /* Unit in usec */ 651738cd3eSNetanel Belgazal #define ENA_REG_READ_TIMEOUT 200000 661738cd3eSNetanel Belgazal 671738cd3eSNetanel Belgazal #define ADMIN_SQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aq_entry)) 681738cd3eSNetanel Belgazal #define ADMIN_CQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_acq_entry)) 691738cd3eSNetanel Belgazal #define ADMIN_AENQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aenq_entry)) 701738cd3eSNetanel Belgazal 711738cd3eSNetanel Belgazal /*****************************************************************************/ 721738cd3eSNetanel Belgazal /*****************************************************************************/ 731738cd3eSNetanel Belgazal /* ENA adaptive interrupt moderation settings */ 741738cd3eSNetanel Belgazal 751738cd3eSNetanel Belgazal #define ENA_INTR_LOWEST_USECS (0) 761738cd3eSNetanel Belgazal #define ENA_INTR_LOWEST_PKTS (3) 771738cd3eSNetanel Belgazal #define ENA_INTR_LOWEST_BYTES (2 * 1524) 781738cd3eSNetanel Belgazal 791738cd3eSNetanel Belgazal #define ENA_INTR_LOW_USECS (32) 801738cd3eSNetanel Belgazal #define ENA_INTR_LOW_PKTS (12) 811738cd3eSNetanel Belgazal #define ENA_INTR_LOW_BYTES (16 * 1024) 821738cd3eSNetanel Belgazal 831738cd3eSNetanel Belgazal #define ENA_INTR_MID_USECS (80) 841738cd3eSNetanel Belgazal #define ENA_INTR_MID_PKTS (48) 851738cd3eSNetanel Belgazal #define ENA_INTR_MID_BYTES (64 * 1024) 861738cd3eSNetanel Belgazal 871738cd3eSNetanel Belgazal #define ENA_INTR_HIGH_USECS (128) 881738cd3eSNetanel Belgazal #define ENA_INTR_HIGH_PKTS (96) 891738cd3eSNetanel Belgazal #define ENA_INTR_HIGH_BYTES (128 * 1024) 901738cd3eSNetanel Belgazal 911738cd3eSNetanel Belgazal #define ENA_INTR_HIGHEST_USECS (192) 921738cd3eSNetanel Belgazal #define ENA_INTR_HIGHEST_PKTS (128) 931738cd3eSNetanel Belgazal #define ENA_INTR_HIGHEST_BYTES (192 * 1024) 941738cd3eSNetanel Belgazal 951738cd3eSNetanel Belgazal #define ENA_INTR_INITIAL_TX_INTERVAL_USECS 196 9615619e72SArthur Kiyanovski #define ENA_INTR_INITIAL_RX_INTERVAL_USECS 0 971738cd3eSNetanel Belgazal #define ENA_INTR_DELAY_OLD_VALUE_WEIGHT 6 981738cd3eSNetanel Belgazal #define ENA_INTR_DELAY_NEW_VALUE_WEIGHT 4 991738cd3eSNetanel Belgazal #define ENA_INTR_MODER_LEVEL_STRIDE 2 1001738cd3eSNetanel Belgazal #define ENA_INTR_BYTE_COUNT_NOT_SUPPORTED 0xFFFFFF 1011738cd3eSNetanel Belgazal 10282ef30f1SNetanel Belgazal #define ENA_HW_HINTS_NO_TIMEOUT 0xFFFF 10382ef30f1SNetanel Belgazal 104ba8ef506SArthur Kiyanovski #define ENA_FEATURE_MAX_QUEUE_EXT_VER 1 105ba8ef506SArthur Kiyanovski 1061738cd3eSNetanel Belgazal enum ena_intr_moder_level { 1071738cd3eSNetanel Belgazal ENA_INTR_MODER_LOWEST = 0, 1081738cd3eSNetanel Belgazal ENA_INTR_MODER_LOW, 1091738cd3eSNetanel Belgazal ENA_INTR_MODER_MID, 1101738cd3eSNetanel Belgazal ENA_INTR_MODER_HIGH, 1111738cd3eSNetanel Belgazal ENA_INTR_MODER_HIGHEST, 1121738cd3eSNetanel Belgazal ENA_INTR_MAX_NUM_OF_LEVELS, 1131738cd3eSNetanel Belgazal }; 1141738cd3eSNetanel Belgazal 115a7982b8eSArthur Kiyanovski struct ena_llq_configurations { 116a7982b8eSArthur Kiyanovski enum ena_admin_llq_header_location llq_header_location; 117a7982b8eSArthur Kiyanovski enum ena_admin_llq_ring_entry_size llq_ring_entry_size; 118a7982b8eSArthur Kiyanovski enum ena_admin_llq_stride_ctrl llq_stride_ctrl; 119a7982b8eSArthur Kiyanovski enum ena_admin_llq_num_descs_before_header llq_num_decs_before_header; 120a7982b8eSArthur Kiyanovski u16 llq_ring_entry_size_value; 121a7982b8eSArthur Kiyanovski }; 122a7982b8eSArthur Kiyanovski 1231738cd3eSNetanel Belgazal struct ena_intr_moder_entry { 1241738cd3eSNetanel Belgazal unsigned int intr_moder_interval; 1251738cd3eSNetanel Belgazal unsigned int pkts_per_interval; 1261738cd3eSNetanel Belgazal unsigned int bytes_per_interval; 1271738cd3eSNetanel Belgazal }; 1281738cd3eSNetanel Belgazal 1291738cd3eSNetanel Belgazal enum queue_direction { 1301738cd3eSNetanel Belgazal ENA_COM_IO_QUEUE_DIRECTION_TX, 1311738cd3eSNetanel Belgazal ENA_COM_IO_QUEUE_DIRECTION_RX 1321738cd3eSNetanel Belgazal }; 1331738cd3eSNetanel Belgazal 1341738cd3eSNetanel Belgazal struct ena_com_buf { 1351738cd3eSNetanel Belgazal dma_addr_t paddr; /**< Buffer physical address */ 1361738cd3eSNetanel Belgazal u16 len; /**< Buffer length in bytes */ 1371738cd3eSNetanel Belgazal }; 1381738cd3eSNetanel Belgazal 1391738cd3eSNetanel Belgazal struct ena_com_rx_buf_info { 1401738cd3eSNetanel Belgazal u16 len; 1411738cd3eSNetanel Belgazal u16 req_id; 1421738cd3eSNetanel Belgazal }; 1431738cd3eSNetanel Belgazal 1441738cd3eSNetanel Belgazal struct ena_com_io_desc_addr { 1451738cd3eSNetanel Belgazal u8 __iomem *pbuf_dev_addr; /* LLQ address */ 1461738cd3eSNetanel Belgazal u8 *virt_addr; 1471738cd3eSNetanel Belgazal dma_addr_t phys_addr; 1481738cd3eSNetanel Belgazal }; 1491738cd3eSNetanel Belgazal 1501738cd3eSNetanel Belgazal struct ena_com_tx_meta { 1511738cd3eSNetanel Belgazal u16 mss; 1521738cd3eSNetanel Belgazal u16 l3_hdr_len; 1531738cd3eSNetanel Belgazal u16 l3_hdr_offset; 1541738cd3eSNetanel Belgazal u16 l4_hdr_len; /* In words */ 1551738cd3eSNetanel Belgazal }; 1561738cd3eSNetanel Belgazal 157a7982b8eSArthur Kiyanovski struct ena_com_llq_info { 158a7982b8eSArthur Kiyanovski u16 header_location_ctrl; 159a7982b8eSArthur Kiyanovski u16 desc_stride_ctrl; 160a7982b8eSArthur Kiyanovski u16 desc_list_entry_size_ctrl; 161a7982b8eSArthur Kiyanovski u16 desc_list_entry_size; 162a7982b8eSArthur Kiyanovski u16 descs_num_before_header; 163a7982b8eSArthur Kiyanovski u16 descs_per_entry; 16405d62ca2SSameeh Jubran u16 max_entries_in_tx_burst; 165a7982b8eSArthur Kiyanovski }; 166a7982b8eSArthur Kiyanovski 1671738cd3eSNetanel Belgazal struct ena_com_io_cq { 1681738cd3eSNetanel Belgazal struct ena_com_io_desc_addr cdesc_addr; 1691738cd3eSNetanel Belgazal 1701738cd3eSNetanel Belgazal /* Interrupt unmask register */ 1711738cd3eSNetanel Belgazal u32 __iomem *unmask_reg; 1721738cd3eSNetanel Belgazal 1731738cd3eSNetanel Belgazal /* The completion queue head doorbell register */ 1741738cd3eSNetanel Belgazal u32 __iomem *cq_head_db_reg; 1751738cd3eSNetanel Belgazal 1761738cd3eSNetanel Belgazal /* numa configuration register (for TPH) */ 1771738cd3eSNetanel Belgazal u32 __iomem *numa_node_cfg_reg; 1781738cd3eSNetanel Belgazal 1791738cd3eSNetanel Belgazal /* The value to write to the above register to unmask 1801738cd3eSNetanel Belgazal * the interrupt of this queue 1811738cd3eSNetanel Belgazal */ 1821738cd3eSNetanel Belgazal u32 msix_vector; 1831738cd3eSNetanel Belgazal 1841738cd3eSNetanel Belgazal enum queue_direction direction; 1851738cd3eSNetanel Belgazal 1861738cd3eSNetanel Belgazal /* holds the number of cdesc of the current packet */ 1871738cd3eSNetanel Belgazal u16 cur_rx_pkt_cdesc_count; 1881738cd3eSNetanel Belgazal /* save the firt cdesc idx of the current packet */ 1891738cd3eSNetanel Belgazal u16 cur_rx_pkt_cdesc_start_idx; 1901738cd3eSNetanel Belgazal 1911738cd3eSNetanel Belgazal u16 q_depth; 1921738cd3eSNetanel Belgazal /* Caller qid */ 1931738cd3eSNetanel Belgazal u16 qid; 1941738cd3eSNetanel Belgazal 1951738cd3eSNetanel Belgazal /* Device queue index */ 1961738cd3eSNetanel Belgazal u16 idx; 1971738cd3eSNetanel Belgazal u16 head; 1981738cd3eSNetanel Belgazal u16 last_head_update; 1991738cd3eSNetanel Belgazal u8 phase; 2001738cd3eSNetanel Belgazal u8 cdesc_entry_size_in_bytes; 2011738cd3eSNetanel Belgazal 2021738cd3eSNetanel Belgazal } ____cacheline_aligned; 2031738cd3eSNetanel Belgazal 204a7982b8eSArthur Kiyanovski struct ena_com_io_bounce_buffer_control { 205a7982b8eSArthur Kiyanovski u8 *base_buffer; 206a7982b8eSArthur Kiyanovski u16 next_to_use; 207a7982b8eSArthur Kiyanovski u16 buffer_size; 208a7982b8eSArthur Kiyanovski u16 buffers_num; /* Must be a power of 2 */ 209a7982b8eSArthur Kiyanovski }; 210a7982b8eSArthur Kiyanovski 211a7982b8eSArthur Kiyanovski /* This struct is to keep tracking the current location of the next llq entry */ 212a7982b8eSArthur Kiyanovski struct ena_com_llq_pkt_ctrl { 213a7982b8eSArthur Kiyanovski u8 *curr_bounce_buf; 214a7982b8eSArthur Kiyanovski u16 idx; 215a7982b8eSArthur Kiyanovski u16 descs_left_in_line; 216a7982b8eSArthur Kiyanovski }; 217a7982b8eSArthur Kiyanovski 2181738cd3eSNetanel Belgazal struct ena_com_io_sq { 2191738cd3eSNetanel Belgazal struct ena_com_io_desc_addr desc_addr; 2201738cd3eSNetanel Belgazal 2211738cd3eSNetanel Belgazal u32 __iomem *db_addr; 2221738cd3eSNetanel Belgazal u8 __iomem *header_addr; 2231738cd3eSNetanel Belgazal 2241738cd3eSNetanel Belgazal enum queue_direction direction; 2251738cd3eSNetanel Belgazal enum ena_admin_placement_policy_type mem_queue_type; 2261738cd3eSNetanel Belgazal 2271738cd3eSNetanel Belgazal u32 msix_vector; 2281738cd3eSNetanel Belgazal struct ena_com_tx_meta cached_tx_meta; 229a7982b8eSArthur Kiyanovski struct ena_com_llq_info llq_info; 230a7982b8eSArthur Kiyanovski struct ena_com_llq_pkt_ctrl llq_buf_ctrl; 231a7982b8eSArthur Kiyanovski struct ena_com_io_bounce_buffer_control bounce_buf_ctrl; 2321738cd3eSNetanel Belgazal 2331738cd3eSNetanel Belgazal u16 q_depth; 2341738cd3eSNetanel Belgazal u16 qid; 2351738cd3eSNetanel Belgazal 2361738cd3eSNetanel Belgazal u16 idx; 2371738cd3eSNetanel Belgazal u16 tail; 2381738cd3eSNetanel Belgazal u16 next_to_comp; 239a7982b8eSArthur Kiyanovski u16 llq_last_copy_tail; 2401738cd3eSNetanel Belgazal u32 tx_max_header_size; 2411738cd3eSNetanel Belgazal u8 phase; 2421738cd3eSNetanel Belgazal u8 desc_entry_size; 2431738cd3eSNetanel Belgazal u8 dma_addr_bits; 24405d62ca2SSameeh Jubran u16 entries_in_tx_burst_left; 2451738cd3eSNetanel Belgazal } ____cacheline_aligned; 2461738cd3eSNetanel Belgazal 2471738cd3eSNetanel Belgazal struct ena_com_admin_cq { 2481738cd3eSNetanel Belgazal struct ena_admin_acq_entry *entries; 2491738cd3eSNetanel Belgazal dma_addr_t dma_addr; 2501738cd3eSNetanel Belgazal 2511738cd3eSNetanel Belgazal u16 head; 2521738cd3eSNetanel Belgazal u8 phase; 2531738cd3eSNetanel Belgazal }; 2541738cd3eSNetanel Belgazal 2551738cd3eSNetanel Belgazal struct ena_com_admin_sq { 2561738cd3eSNetanel Belgazal struct ena_admin_aq_entry *entries; 2571738cd3eSNetanel Belgazal dma_addr_t dma_addr; 2581738cd3eSNetanel Belgazal 2591738cd3eSNetanel Belgazal u32 __iomem *db_addr; 2601738cd3eSNetanel Belgazal 2611738cd3eSNetanel Belgazal u16 head; 2621738cd3eSNetanel Belgazal u16 tail; 2631738cd3eSNetanel Belgazal u8 phase; 2641738cd3eSNetanel Belgazal 2651738cd3eSNetanel Belgazal }; 2661738cd3eSNetanel Belgazal 2671738cd3eSNetanel Belgazal struct ena_com_stats_admin { 2681738cd3eSNetanel Belgazal u32 aborted_cmd; 2691738cd3eSNetanel Belgazal u32 submitted_cmd; 2701738cd3eSNetanel Belgazal u32 completed_cmd; 2711738cd3eSNetanel Belgazal u32 out_of_space; 2721738cd3eSNetanel Belgazal u32 no_completion; 2731738cd3eSNetanel Belgazal }; 2741738cd3eSNetanel Belgazal 2751738cd3eSNetanel Belgazal struct ena_com_admin_queue { 2761738cd3eSNetanel Belgazal void *q_dmadev; 2771738cd3eSNetanel Belgazal spinlock_t q_lock; /* spinlock for the admin queue */ 27882ef30f1SNetanel Belgazal 2791738cd3eSNetanel Belgazal struct ena_comp_ctx *comp_ctx; 28082ef30f1SNetanel Belgazal u32 completion_timeout; 2811738cd3eSNetanel Belgazal u16 q_depth; 2821738cd3eSNetanel Belgazal struct ena_com_admin_cq cq; 2831738cd3eSNetanel Belgazal struct ena_com_admin_sq sq; 2841738cd3eSNetanel Belgazal 2851738cd3eSNetanel Belgazal /* Indicate if the admin queue should poll for completion */ 2861738cd3eSNetanel Belgazal bool polling; 2871738cd3eSNetanel Belgazal 288a4e262cdSSameeh Jubran /* Define if fallback to polling mode should occur */ 289a4e262cdSSameeh Jubran bool auto_polling; 290a4e262cdSSameeh Jubran 2911738cd3eSNetanel Belgazal u16 curr_cmd_id; 2921738cd3eSNetanel Belgazal 2931738cd3eSNetanel Belgazal /* Indicate that the ena was initialized and can 2941738cd3eSNetanel Belgazal * process new admin commands 2951738cd3eSNetanel Belgazal */ 2961738cd3eSNetanel Belgazal bool running_state; 2971738cd3eSNetanel Belgazal 2981738cd3eSNetanel Belgazal /* Count the number of outstanding admin commands */ 2991738cd3eSNetanel Belgazal atomic_t outstanding_cmds; 3001738cd3eSNetanel Belgazal 3011738cd3eSNetanel Belgazal struct ena_com_stats_admin stats; 3021738cd3eSNetanel Belgazal }; 3031738cd3eSNetanel Belgazal 3041738cd3eSNetanel Belgazal struct ena_aenq_handlers; 3051738cd3eSNetanel Belgazal 3061738cd3eSNetanel Belgazal struct ena_com_aenq { 3071738cd3eSNetanel Belgazal u16 head; 3081738cd3eSNetanel Belgazal u8 phase; 3091738cd3eSNetanel Belgazal struct ena_admin_aenq_entry *entries; 3101738cd3eSNetanel Belgazal dma_addr_t dma_addr; 3111738cd3eSNetanel Belgazal u16 q_depth; 3121738cd3eSNetanel Belgazal struct ena_aenq_handlers *aenq_handlers; 3131738cd3eSNetanel Belgazal }; 3141738cd3eSNetanel Belgazal 3151738cd3eSNetanel Belgazal struct ena_com_mmio_read { 3161738cd3eSNetanel Belgazal struct ena_admin_ena_mmio_req_read_less_resp *read_resp; 3171738cd3eSNetanel Belgazal dma_addr_t read_resp_dma_addr; 31882ef30f1SNetanel Belgazal u32 reg_read_to; /* in us */ 3191738cd3eSNetanel Belgazal u16 seq_num; 3201738cd3eSNetanel Belgazal bool readless_supported; 3211738cd3eSNetanel Belgazal /* spin lock to ensure a single outstanding read */ 3221738cd3eSNetanel Belgazal spinlock_t lock; 3231738cd3eSNetanel Belgazal }; 3241738cd3eSNetanel Belgazal 3251738cd3eSNetanel Belgazal struct ena_rss { 3261738cd3eSNetanel Belgazal /* Indirect table */ 3271738cd3eSNetanel Belgazal u16 *host_rss_ind_tbl; 3281738cd3eSNetanel Belgazal struct ena_admin_rss_ind_table_entry *rss_ind_tbl; 3291738cd3eSNetanel Belgazal dma_addr_t rss_ind_tbl_dma_addr; 3301738cd3eSNetanel Belgazal u16 tbl_log_size; 3311738cd3eSNetanel Belgazal 3321738cd3eSNetanel Belgazal /* Hash key */ 3331738cd3eSNetanel Belgazal enum ena_admin_hash_functions hash_func; 3341738cd3eSNetanel Belgazal struct ena_admin_feature_rss_flow_hash_control *hash_key; 3351738cd3eSNetanel Belgazal dma_addr_t hash_key_dma_addr; 3361738cd3eSNetanel Belgazal u32 hash_init_val; 3371738cd3eSNetanel Belgazal 3381738cd3eSNetanel Belgazal /* Flow Control */ 3391738cd3eSNetanel Belgazal struct ena_admin_feature_rss_hash_control *hash_ctrl; 3401738cd3eSNetanel Belgazal dma_addr_t hash_ctrl_dma_addr; 3411738cd3eSNetanel Belgazal 3421738cd3eSNetanel Belgazal }; 3431738cd3eSNetanel Belgazal 3441738cd3eSNetanel Belgazal struct ena_host_attribute { 3451738cd3eSNetanel Belgazal /* Debug area */ 3461738cd3eSNetanel Belgazal u8 *debug_area_virt_addr; 3471738cd3eSNetanel Belgazal dma_addr_t debug_area_dma_addr; 3481738cd3eSNetanel Belgazal u32 debug_area_size; 3491738cd3eSNetanel Belgazal 3501738cd3eSNetanel Belgazal /* Host information */ 3511738cd3eSNetanel Belgazal struct ena_admin_host_info *host_info; 3521738cd3eSNetanel Belgazal dma_addr_t host_info_dma_addr; 3531738cd3eSNetanel Belgazal }; 3541738cd3eSNetanel Belgazal 3551738cd3eSNetanel Belgazal /* Each ena_dev is a PCI function. */ 3561738cd3eSNetanel Belgazal struct ena_com_dev { 3571738cd3eSNetanel Belgazal struct ena_com_admin_queue admin_queue; 3581738cd3eSNetanel Belgazal struct ena_com_aenq aenq; 3591738cd3eSNetanel Belgazal struct ena_com_io_cq io_cq_queues[ENA_TOTAL_NUM_QUEUES]; 3601738cd3eSNetanel Belgazal struct ena_com_io_sq io_sq_queues[ENA_TOTAL_NUM_QUEUES]; 3611738cd3eSNetanel Belgazal u8 __iomem *reg_bar; 3621738cd3eSNetanel Belgazal void __iomem *mem_bar; 3631738cd3eSNetanel Belgazal void *dmadev; 3641738cd3eSNetanel Belgazal 3651738cd3eSNetanel Belgazal enum ena_admin_placement_policy_type tx_mem_queue_type; 3661738cd3eSNetanel Belgazal u32 tx_max_header_size; 3671738cd3eSNetanel Belgazal u16 stats_func; /* Selected function for extended statistic dump */ 3681738cd3eSNetanel Belgazal u16 stats_queue; /* Selected queue for extended statistic dump */ 3691738cd3eSNetanel Belgazal 3701738cd3eSNetanel Belgazal struct ena_com_mmio_read mmio_read; 3711738cd3eSNetanel Belgazal 3721738cd3eSNetanel Belgazal struct ena_rss rss; 3731738cd3eSNetanel Belgazal u32 supported_features; 3741738cd3eSNetanel Belgazal u32 dma_addr_bits; 3751738cd3eSNetanel Belgazal 3761738cd3eSNetanel Belgazal struct ena_host_attribute host_attr; 3771738cd3eSNetanel Belgazal bool adaptive_coalescing; 3781738cd3eSNetanel Belgazal u16 intr_delay_resolution; 37915619e72SArthur Kiyanovski 38015619e72SArthur Kiyanovski /* interrupt moderation intervals are in usec divided by 38115619e72SArthur Kiyanovski * intr_delay_resolution, which is supplied by the device. 38215619e72SArthur Kiyanovski */ 3831738cd3eSNetanel Belgazal u32 intr_moder_tx_interval; 38415619e72SArthur Kiyanovski u32 intr_moder_rx_interval; 38515619e72SArthur Kiyanovski 3861738cd3eSNetanel Belgazal struct ena_intr_moder_entry *intr_moder_tbl; 387a7982b8eSArthur Kiyanovski 388a7982b8eSArthur Kiyanovski struct ena_com_llq_info llq_info; 3891738cd3eSNetanel Belgazal }; 3901738cd3eSNetanel Belgazal 3911738cd3eSNetanel Belgazal struct ena_com_dev_get_features_ctx { 3921738cd3eSNetanel Belgazal struct ena_admin_queue_feature_desc max_queues; 393ba8ef506SArthur Kiyanovski struct ena_admin_queue_ext_feature_desc max_queue_ext; 3941738cd3eSNetanel Belgazal struct ena_admin_device_attr_feature_desc dev_attr; 3951738cd3eSNetanel Belgazal struct ena_admin_feature_aenq_desc aenq; 3961738cd3eSNetanel Belgazal struct ena_admin_feature_offload_desc offload; 39782ef30f1SNetanel Belgazal struct ena_admin_ena_hw_hints hw_hints; 398a7982b8eSArthur Kiyanovski struct ena_admin_feature_llq_desc llq; 3991738cd3eSNetanel Belgazal }; 4001738cd3eSNetanel Belgazal 4011738cd3eSNetanel Belgazal struct ena_com_create_io_ctx { 4021738cd3eSNetanel Belgazal enum ena_admin_placement_policy_type mem_queue_type; 4031738cd3eSNetanel Belgazal enum queue_direction direction; 4041738cd3eSNetanel Belgazal int numa_node; 4051738cd3eSNetanel Belgazal u32 msix_vector; 4061738cd3eSNetanel Belgazal u16 queue_size; 4071738cd3eSNetanel Belgazal u16 qid; 4081738cd3eSNetanel Belgazal }; 4091738cd3eSNetanel Belgazal 4101738cd3eSNetanel Belgazal typedef void (*ena_aenq_handler)(void *data, 4111738cd3eSNetanel Belgazal struct ena_admin_aenq_entry *aenq_e); 4121738cd3eSNetanel Belgazal 4131738cd3eSNetanel Belgazal /* Holds aenq handlers. Indexed by AENQ event group */ 4141738cd3eSNetanel Belgazal struct ena_aenq_handlers { 4151738cd3eSNetanel Belgazal ena_aenq_handler handlers[ENA_MAX_HANDLERS]; 4161738cd3eSNetanel Belgazal ena_aenq_handler unimplemented_handler; 4171738cd3eSNetanel Belgazal }; 4181738cd3eSNetanel Belgazal 4191738cd3eSNetanel Belgazal /*****************************************************************************/ 4201738cd3eSNetanel Belgazal /*****************************************************************************/ 4211738cd3eSNetanel Belgazal 4221738cd3eSNetanel Belgazal /* ena_com_mmio_reg_read_request_init - Init the mmio reg read mechanism 4231738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4241738cd3eSNetanel Belgazal * 4251738cd3eSNetanel Belgazal * Initialize the register read mechanism. 4261738cd3eSNetanel Belgazal * 4271738cd3eSNetanel Belgazal * @note: This method must be the first stage in the initialization sequence. 4281738cd3eSNetanel Belgazal * 4291738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 4301738cd3eSNetanel Belgazal */ 4311738cd3eSNetanel Belgazal int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev); 4321738cd3eSNetanel Belgazal 4331738cd3eSNetanel Belgazal /* ena_com_set_mmio_read_mode - Enable/disable the mmio reg read mechanism 4341738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4351738cd3eSNetanel Belgazal * @readless_supported: readless mode (enable/disable) 4361738cd3eSNetanel Belgazal */ 4371738cd3eSNetanel Belgazal void ena_com_set_mmio_read_mode(struct ena_com_dev *ena_dev, 4381738cd3eSNetanel Belgazal bool readless_supported); 4391738cd3eSNetanel Belgazal 4401738cd3eSNetanel Belgazal /* ena_com_mmio_reg_read_request_write_dev_addr - Write the mmio reg read return 4411738cd3eSNetanel Belgazal * value physical address. 4421738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4431738cd3eSNetanel Belgazal */ 4441738cd3eSNetanel Belgazal void ena_com_mmio_reg_read_request_write_dev_addr(struct ena_com_dev *ena_dev); 4451738cd3eSNetanel Belgazal 4461738cd3eSNetanel Belgazal /* ena_com_mmio_reg_read_request_destroy - Destroy the mmio reg read mechanism 4471738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4481738cd3eSNetanel Belgazal */ 4491738cd3eSNetanel Belgazal void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev); 4501738cd3eSNetanel Belgazal 4511738cd3eSNetanel Belgazal /* ena_com_admin_init - Init the admin and the async queues 4521738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4531738cd3eSNetanel Belgazal * @aenq_handlers: Those handlers to be called upon event. 4541738cd3eSNetanel Belgazal * 4551738cd3eSNetanel Belgazal * Initialize the admin submission and completion queues. 4561738cd3eSNetanel Belgazal * Initialize the asynchronous events notification queues. 4571738cd3eSNetanel Belgazal * 4581738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 4591738cd3eSNetanel Belgazal */ 4601738cd3eSNetanel Belgazal int ena_com_admin_init(struct ena_com_dev *ena_dev, 461f1e90f6eSArthur Kiyanovski struct ena_aenq_handlers *aenq_handlers); 4621738cd3eSNetanel Belgazal 4631738cd3eSNetanel Belgazal /* ena_com_admin_destroy - Destroy the admin and the async events queues. 4641738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4651738cd3eSNetanel Belgazal * 4661738cd3eSNetanel Belgazal * @note: Before calling this method, the caller must validate that the device 4671738cd3eSNetanel Belgazal * won't send any additional admin completions/aenq. 4681738cd3eSNetanel Belgazal * To achieve that, a FLR is recommended. 4691738cd3eSNetanel Belgazal */ 4701738cd3eSNetanel Belgazal void ena_com_admin_destroy(struct ena_com_dev *ena_dev); 4711738cd3eSNetanel Belgazal 4721738cd3eSNetanel Belgazal /* ena_com_dev_reset - Perform device FLR to the device. 4731738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 474e2eed0e3SNetanel Belgazal * @reset_reason: Specify what is the trigger for the reset in case of an error. 4751738cd3eSNetanel Belgazal * 4761738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 4771738cd3eSNetanel Belgazal */ 478e2eed0e3SNetanel Belgazal int ena_com_dev_reset(struct ena_com_dev *ena_dev, 479e2eed0e3SNetanel Belgazal enum ena_regs_reset_reason_types reset_reason); 4801738cd3eSNetanel Belgazal 4811738cd3eSNetanel Belgazal /* ena_com_create_io_queue - Create io queue. 4821738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4831738cd3eSNetanel Belgazal * @ctx - create context structure 4841738cd3eSNetanel Belgazal * 4851738cd3eSNetanel Belgazal * Create the submission and the completion queues. 4861738cd3eSNetanel Belgazal * 4871738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 4881738cd3eSNetanel Belgazal */ 4891738cd3eSNetanel Belgazal int ena_com_create_io_queue(struct ena_com_dev *ena_dev, 4901738cd3eSNetanel Belgazal struct ena_com_create_io_ctx *ctx); 4911738cd3eSNetanel Belgazal 4921738cd3eSNetanel Belgazal /* ena_com_destroy_io_queue - Destroy IO queue with the queue id - qid. 4931738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 4941738cd3eSNetanel Belgazal * @qid - the caller virtual queue id. 4951738cd3eSNetanel Belgazal */ 4961738cd3eSNetanel Belgazal void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid); 4971738cd3eSNetanel Belgazal 4981738cd3eSNetanel Belgazal /* ena_com_get_io_handlers - Return the io queue handlers 4991738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5001738cd3eSNetanel Belgazal * @qid - the caller virtual queue id. 5011738cd3eSNetanel Belgazal * @io_sq - IO submission queue handler 5021738cd3eSNetanel Belgazal * @io_cq - IO completion queue handler. 5031738cd3eSNetanel Belgazal * 5041738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 5051738cd3eSNetanel Belgazal */ 5061738cd3eSNetanel Belgazal int ena_com_get_io_handlers(struct ena_com_dev *ena_dev, u16 qid, 5071738cd3eSNetanel Belgazal struct ena_com_io_sq **io_sq, 5081738cd3eSNetanel Belgazal struct ena_com_io_cq **io_cq); 5091738cd3eSNetanel Belgazal 5101738cd3eSNetanel Belgazal /* ena_com_admin_aenq_enable - ENAble asynchronous event notifications 5111738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5121738cd3eSNetanel Belgazal * 5131738cd3eSNetanel Belgazal * After this method, aenq event can be received via AENQ. 5141738cd3eSNetanel Belgazal */ 5151738cd3eSNetanel Belgazal void ena_com_admin_aenq_enable(struct ena_com_dev *ena_dev); 5161738cd3eSNetanel Belgazal 5171738cd3eSNetanel Belgazal /* ena_com_set_admin_running_state - Set the state of the admin queue 5181738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5191738cd3eSNetanel Belgazal * 5201738cd3eSNetanel Belgazal * Change the state of the admin queue (enable/disable) 5211738cd3eSNetanel Belgazal */ 5221738cd3eSNetanel Belgazal void ena_com_set_admin_running_state(struct ena_com_dev *ena_dev, bool state); 5231738cd3eSNetanel Belgazal 5241738cd3eSNetanel Belgazal /* ena_com_get_admin_running_state - Get the admin queue state 5251738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5261738cd3eSNetanel Belgazal * 5271738cd3eSNetanel Belgazal * Retrieve the state of the admin queue (enable/disable) 5281738cd3eSNetanel Belgazal * 5291738cd3eSNetanel Belgazal * @return - current polling mode (enable/disable) 5301738cd3eSNetanel Belgazal */ 5311738cd3eSNetanel Belgazal bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev); 5321738cd3eSNetanel Belgazal 5331738cd3eSNetanel Belgazal /* ena_com_set_admin_polling_mode - Set the admin completion queue polling mode 5341738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5351738cd3eSNetanel Belgazal * @polling: ENAble/Disable polling mode 5361738cd3eSNetanel Belgazal * 5371738cd3eSNetanel Belgazal * Set the admin completion mode. 5381738cd3eSNetanel Belgazal */ 5391738cd3eSNetanel Belgazal void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling); 5401738cd3eSNetanel Belgazal 5411738cd3eSNetanel Belgazal /* ena_com_set_admin_polling_mode - Get the admin completion queue polling mode 5421738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5431738cd3eSNetanel Belgazal * 5441738cd3eSNetanel Belgazal * Get the admin completion mode. 5451738cd3eSNetanel Belgazal * If polling mode is on, ena_com_execute_admin_command will perform a 5461738cd3eSNetanel Belgazal * polling on the admin completion queue for the commands completion, 5471738cd3eSNetanel Belgazal * otherwise it will wait on wait event. 5481738cd3eSNetanel Belgazal * 5491738cd3eSNetanel Belgazal * @return state 5501738cd3eSNetanel Belgazal */ 5511738cd3eSNetanel Belgazal bool ena_com_get_ena_admin_polling_mode(struct ena_com_dev *ena_dev); 5521738cd3eSNetanel Belgazal 553a4e262cdSSameeh Jubran /* ena_com_set_admin_auto_polling_mode - Enable autoswitch to polling mode 554a4e262cdSSameeh Jubran * @ena_dev: ENA communication layer struct 555a4e262cdSSameeh Jubran * @polling: Enable/Disable polling mode 556a4e262cdSSameeh Jubran * 557a4e262cdSSameeh Jubran * Set the autopolling mode. 558a4e262cdSSameeh Jubran * If autopolling is on: 559a4e262cdSSameeh Jubran * In case of missing interrupt when data is available switch to polling. 560a4e262cdSSameeh Jubran */ 561a4e262cdSSameeh Jubran void ena_com_set_admin_auto_polling_mode(struct ena_com_dev *ena_dev, 562a4e262cdSSameeh Jubran bool polling); 563a4e262cdSSameeh Jubran 5641738cd3eSNetanel Belgazal /* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler 5651738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5661738cd3eSNetanel Belgazal * 5671738cd3eSNetanel Belgazal * This method go over the admin completion queue and wake up all the pending 5681738cd3eSNetanel Belgazal * threads that wait on the commands wait event. 5691738cd3eSNetanel Belgazal * 5701738cd3eSNetanel Belgazal * @note: Should be called after MSI-X interrupt. 5711738cd3eSNetanel Belgazal */ 5721738cd3eSNetanel Belgazal void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev); 5731738cd3eSNetanel Belgazal 5741738cd3eSNetanel Belgazal /* ena_com_aenq_intr_handler - AENQ interrupt handler 5751738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5761738cd3eSNetanel Belgazal * 5771738cd3eSNetanel Belgazal * This method go over the async event notification queue and call the proper 5781738cd3eSNetanel Belgazal * aenq handler. 5791738cd3eSNetanel Belgazal */ 5801738cd3eSNetanel Belgazal void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data); 5811738cd3eSNetanel Belgazal 5821738cd3eSNetanel Belgazal /* ena_com_abort_admin_commands - Abort all the outstanding admin commands. 5831738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5841738cd3eSNetanel Belgazal * 5851738cd3eSNetanel Belgazal * This method aborts all the outstanding admin commands. 5861738cd3eSNetanel Belgazal * The caller should then call ena_com_wait_for_abort_completion to make sure 5871738cd3eSNetanel Belgazal * all the commands were completed. 5881738cd3eSNetanel Belgazal */ 5891738cd3eSNetanel Belgazal void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev); 5901738cd3eSNetanel Belgazal 5911738cd3eSNetanel Belgazal /* ena_com_wait_for_abort_completion - Wait for admin commands abort. 5921738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 5931738cd3eSNetanel Belgazal * 5941738cd3eSNetanel Belgazal * This method wait until all the outstanding admin commands will be completed. 5951738cd3eSNetanel Belgazal */ 5961738cd3eSNetanel Belgazal void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev); 5971738cd3eSNetanel Belgazal 5981738cd3eSNetanel Belgazal /* ena_com_validate_version - Validate the device parameters 5991738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6001738cd3eSNetanel Belgazal * 6011738cd3eSNetanel Belgazal * This method validate the device parameters are the same as the saved 6021738cd3eSNetanel Belgazal * parameters in ena_dev. 6031738cd3eSNetanel Belgazal * This method is useful after device reset, to validate the device mac address 6041738cd3eSNetanel Belgazal * and the device offloads are the same as before the reset. 6051738cd3eSNetanel Belgazal * 6061738cd3eSNetanel Belgazal * @return - 0 on success negative value otherwise. 6071738cd3eSNetanel Belgazal */ 6081738cd3eSNetanel Belgazal int ena_com_validate_version(struct ena_com_dev *ena_dev); 6091738cd3eSNetanel Belgazal 6101738cd3eSNetanel Belgazal /* ena_com_get_link_params - Retrieve physical link parameters. 6111738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6121738cd3eSNetanel Belgazal * @resp: Link parameters 6131738cd3eSNetanel Belgazal * 6141738cd3eSNetanel Belgazal * Retrieve the physical link parameters, 6151738cd3eSNetanel Belgazal * like speed, auto-negotiation and full duplex support. 6161738cd3eSNetanel Belgazal * 6171738cd3eSNetanel Belgazal * @return - 0 on Success negative value otherwise. 6181738cd3eSNetanel Belgazal */ 6191738cd3eSNetanel Belgazal int ena_com_get_link_params(struct ena_com_dev *ena_dev, 6201738cd3eSNetanel Belgazal struct ena_admin_get_feat_resp *resp); 6211738cd3eSNetanel Belgazal 6221738cd3eSNetanel Belgazal /* ena_com_get_dma_width - Retrieve physical dma address width the device 6231738cd3eSNetanel Belgazal * supports. 6241738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6251738cd3eSNetanel Belgazal * 6261738cd3eSNetanel Belgazal * Retrieve the maximum physical address bits the device can handle. 6271738cd3eSNetanel Belgazal * 6281738cd3eSNetanel Belgazal * @return: > 0 on Success and negative value otherwise. 6291738cd3eSNetanel Belgazal */ 6301738cd3eSNetanel Belgazal int ena_com_get_dma_width(struct ena_com_dev *ena_dev); 6311738cd3eSNetanel Belgazal 6321738cd3eSNetanel Belgazal /* ena_com_set_aenq_config - Set aenq groups configurations 6331738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6341738cd3eSNetanel Belgazal * @groups flag: bit fields flags of enum ena_admin_aenq_group. 6351738cd3eSNetanel Belgazal * 6361738cd3eSNetanel Belgazal * Configure which aenq event group the driver would like to receive. 6371738cd3eSNetanel Belgazal * 6381738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 6391738cd3eSNetanel Belgazal */ 6401738cd3eSNetanel Belgazal int ena_com_set_aenq_config(struct ena_com_dev *ena_dev, u32 groups_flag); 6411738cd3eSNetanel Belgazal 6421738cd3eSNetanel Belgazal /* ena_com_get_dev_attr_feat - Get device features 6431738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6441738cd3eSNetanel Belgazal * @get_feat_ctx: returned context that contain the get features. 6451738cd3eSNetanel Belgazal * 6461738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 6471738cd3eSNetanel Belgazal */ 6481738cd3eSNetanel Belgazal int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev, 6491738cd3eSNetanel Belgazal struct ena_com_dev_get_features_ctx *get_feat_ctx); 6501738cd3eSNetanel Belgazal 6511738cd3eSNetanel Belgazal /* ena_com_get_dev_basic_stats - Get device basic statistics 6521738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6531738cd3eSNetanel Belgazal * @stats: stats return value 6541738cd3eSNetanel Belgazal * 6551738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 6561738cd3eSNetanel Belgazal */ 6571738cd3eSNetanel Belgazal int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev, 6581738cd3eSNetanel Belgazal struct ena_admin_basic_stats *stats); 6591738cd3eSNetanel Belgazal 6601738cd3eSNetanel Belgazal /* ena_com_set_dev_mtu - Configure the device mtu. 6611738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6621738cd3eSNetanel Belgazal * @mtu: mtu value 6631738cd3eSNetanel Belgazal * 6641738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 6651738cd3eSNetanel Belgazal */ 6661738cd3eSNetanel Belgazal int ena_com_set_dev_mtu(struct ena_com_dev *ena_dev, int mtu); 6671738cd3eSNetanel Belgazal 6681738cd3eSNetanel Belgazal /* ena_com_get_offload_settings - Retrieve the device offloads capabilities 6691738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6701738cd3eSNetanel Belgazal * @offlad: offload return value 6711738cd3eSNetanel Belgazal * 6721738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 6731738cd3eSNetanel Belgazal */ 6741738cd3eSNetanel Belgazal int ena_com_get_offload_settings(struct ena_com_dev *ena_dev, 6751738cd3eSNetanel Belgazal struct ena_admin_feature_offload_desc *offload); 6761738cd3eSNetanel Belgazal 6771738cd3eSNetanel Belgazal /* ena_com_rss_init - Init RSS 6781738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6791738cd3eSNetanel Belgazal * @log_size: indirection log size 6801738cd3eSNetanel Belgazal * 6811738cd3eSNetanel Belgazal * Allocate RSS/RFS resources. 6821738cd3eSNetanel Belgazal * The caller then can configure rss using ena_com_set_hash_function, 6831738cd3eSNetanel Belgazal * ena_com_set_hash_ctrl and ena_com_indirect_table_set. 6841738cd3eSNetanel Belgazal * 6851738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 6861738cd3eSNetanel Belgazal */ 6871738cd3eSNetanel Belgazal int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size); 6881738cd3eSNetanel Belgazal 6891738cd3eSNetanel Belgazal /* ena_com_rss_destroy - Destroy rss 6901738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6911738cd3eSNetanel Belgazal * 6921738cd3eSNetanel Belgazal * Free all the RSS/RFS resources. 6931738cd3eSNetanel Belgazal */ 6941738cd3eSNetanel Belgazal void ena_com_rss_destroy(struct ena_com_dev *ena_dev); 6951738cd3eSNetanel Belgazal 6961738cd3eSNetanel Belgazal /* ena_com_fill_hash_function - Fill RSS hash function 6971738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 6981738cd3eSNetanel Belgazal * @func: The hash function (Toeplitz or crc) 6991738cd3eSNetanel Belgazal * @key: Hash key (for toeplitz hash) 7001738cd3eSNetanel Belgazal * @key_len: key length (max length 10 DW) 7011738cd3eSNetanel Belgazal * @init_val: initial value for the hash function 7021738cd3eSNetanel Belgazal * 7031738cd3eSNetanel Belgazal * Fill the ena_dev resources with the desire hash function, hash key, key_len 7041738cd3eSNetanel Belgazal * and key initial value (if needed by the hash function). 7051738cd3eSNetanel Belgazal * To flush the key into the device the caller should call 7061738cd3eSNetanel Belgazal * ena_com_set_hash_function. 7071738cd3eSNetanel Belgazal * 7081738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7091738cd3eSNetanel Belgazal */ 7101738cd3eSNetanel Belgazal int ena_com_fill_hash_function(struct ena_com_dev *ena_dev, 7111738cd3eSNetanel Belgazal enum ena_admin_hash_functions func, 7121738cd3eSNetanel Belgazal const u8 *key, u16 key_len, u32 init_val); 7131738cd3eSNetanel Belgazal 7141738cd3eSNetanel Belgazal /* ena_com_set_hash_function - Flush the hash function and it dependencies to 7151738cd3eSNetanel Belgazal * the device. 7161738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 7171738cd3eSNetanel Belgazal * 7181738cd3eSNetanel Belgazal * Flush the hash function and it dependencies (key, key length and 7191738cd3eSNetanel Belgazal * initial value) if needed. 7201738cd3eSNetanel Belgazal * 7211738cd3eSNetanel Belgazal * @note: Prior to this method the caller should call ena_com_fill_hash_function 7221738cd3eSNetanel Belgazal * 7231738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7241738cd3eSNetanel Belgazal */ 7251738cd3eSNetanel Belgazal int ena_com_set_hash_function(struct ena_com_dev *ena_dev); 7261738cd3eSNetanel Belgazal 7271738cd3eSNetanel Belgazal /* ena_com_get_hash_function - Retrieve the hash function and the hash key 7281738cd3eSNetanel Belgazal * from the device. 7291738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 7301738cd3eSNetanel Belgazal * @func: hash function 7311738cd3eSNetanel Belgazal * @key: hash key 7321738cd3eSNetanel Belgazal * 7331738cd3eSNetanel Belgazal * Retrieve the hash function and the hash key from the device. 7341738cd3eSNetanel Belgazal * 7351738cd3eSNetanel Belgazal * @note: If the caller called ena_com_fill_hash_function but didn't flash 7361738cd3eSNetanel Belgazal * it to the device, the new configuration will be lost. 7371738cd3eSNetanel Belgazal * 7381738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7391738cd3eSNetanel Belgazal */ 7401738cd3eSNetanel Belgazal int ena_com_get_hash_function(struct ena_com_dev *ena_dev, 7411738cd3eSNetanel Belgazal enum ena_admin_hash_functions *func, 7421738cd3eSNetanel Belgazal u8 *key); 7431738cd3eSNetanel Belgazal 7441738cd3eSNetanel Belgazal /* ena_com_fill_hash_ctrl - Fill RSS hash control 7451738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct. 7461738cd3eSNetanel Belgazal * @proto: The protocol to configure. 7471738cd3eSNetanel Belgazal * @hash_fields: bit mask of ena_admin_flow_hash_fields 7481738cd3eSNetanel Belgazal * 7491738cd3eSNetanel Belgazal * Fill the ena_dev resources with the desire hash control (the ethernet 7501738cd3eSNetanel Belgazal * fields that take part of the hash) for a specific protocol. 7511738cd3eSNetanel Belgazal * To flush the hash control to the device, the caller should call 7521738cd3eSNetanel Belgazal * ena_com_set_hash_ctrl. 7531738cd3eSNetanel Belgazal * 7541738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7551738cd3eSNetanel Belgazal */ 7561738cd3eSNetanel Belgazal int ena_com_fill_hash_ctrl(struct ena_com_dev *ena_dev, 7571738cd3eSNetanel Belgazal enum ena_admin_flow_hash_proto proto, 7581738cd3eSNetanel Belgazal u16 hash_fields); 7591738cd3eSNetanel Belgazal 7601738cd3eSNetanel Belgazal /* ena_com_set_hash_ctrl - Flush the hash control resources to the device. 7611738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 7621738cd3eSNetanel Belgazal * 7631738cd3eSNetanel Belgazal * Flush the hash control (the ethernet fields that take part of the hash) 7641738cd3eSNetanel Belgazal * 7651738cd3eSNetanel Belgazal * @note: Prior to this method the caller should call ena_com_fill_hash_ctrl. 7661738cd3eSNetanel Belgazal * 7671738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7681738cd3eSNetanel Belgazal */ 7691738cd3eSNetanel Belgazal int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev); 7701738cd3eSNetanel Belgazal 7711738cd3eSNetanel Belgazal /* ena_com_get_hash_ctrl - Retrieve the hash control from the device. 7721738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 7731738cd3eSNetanel Belgazal * @proto: The protocol to retrieve. 7741738cd3eSNetanel Belgazal * @fields: bit mask of ena_admin_flow_hash_fields. 7751738cd3eSNetanel Belgazal * 7761738cd3eSNetanel Belgazal * Retrieve the hash control from the device. 7771738cd3eSNetanel Belgazal * 7781738cd3eSNetanel Belgazal * @note, If the caller called ena_com_fill_hash_ctrl but didn't flash 7791738cd3eSNetanel Belgazal * it to the device, the new configuration will be lost. 7801738cd3eSNetanel Belgazal * 7811738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7821738cd3eSNetanel Belgazal */ 7831738cd3eSNetanel Belgazal int ena_com_get_hash_ctrl(struct ena_com_dev *ena_dev, 7841738cd3eSNetanel Belgazal enum ena_admin_flow_hash_proto proto, 7851738cd3eSNetanel Belgazal u16 *fields); 7861738cd3eSNetanel Belgazal 7871738cd3eSNetanel Belgazal /* ena_com_set_default_hash_ctrl - Set the hash control to a default 7881738cd3eSNetanel Belgazal * configuration. 7891738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 7901738cd3eSNetanel Belgazal * 7911738cd3eSNetanel Belgazal * Fill the ena_dev resources with the default hash control configuration. 7921738cd3eSNetanel Belgazal * To flush the hash control to the device, the caller should call 7931738cd3eSNetanel Belgazal * ena_com_set_hash_ctrl. 7941738cd3eSNetanel Belgazal * 7951738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 7961738cd3eSNetanel Belgazal */ 7971738cd3eSNetanel Belgazal int ena_com_set_default_hash_ctrl(struct ena_com_dev *ena_dev); 7981738cd3eSNetanel Belgazal 7991738cd3eSNetanel Belgazal /* ena_com_indirect_table_fill_entry - Fill a single entry in the RSS 8001738cd3eSNetanel Belgazal * indirection table 8011738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct. 8021738cd3eSNetanel Belgazal * @entry_idx - indirection table entry. 8031738cd3eSNetanel Belgazal * @entry_value - redirection value 8041738cd3eSNetanel Belgazal * 8051738cd3eSNetanel Belgazal * Fill a single entry of the RSS indirection table in the ena_dev resources. 8061738cd3eSNetanel Belgazal * To flush the indirection table to the device, the called should call 8071738cd3eSNetanel Belgazal * ena_com_indirect_table_set. 8081738cd3eSNetanel Belgazal * 8091738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 8101738cd3eSNetanel Belgazal */ 8111738cd3eSNetanel Belgazal int ena_com_indirect_table_fill_entry(struct ena_com_dev *ena_dev, 8121738cd3eSNetanel Belgazal u16 entry_idx, u16 entry_value); 8131738cd3eSNetanel Belgazal 8141738cd3eSNetanel Belgazal /* ena_com_indirect_table_set - Flush the indirection table to the device. 8151738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8161738cd3eSNetanel Belgazal * 8171738cd3eSNetanel Belgazal * Flush the indirection hash control to the device. 8181738cd3eSNetanel Belgazal * Prior to this method the caller should call ena_com_indirect_table_fill_entry 8191738cd3eSNetanel Belgazal * 8201738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 8211738cd3eSNetanel Belgazal */ 8221738cd3eSNetanel Belgazal int ena_com_indirect_table_set(struct ena_com_dev *ena_dev); 8231738cd3eSNetanel Belgazal 8241738cd3eSNetanel Belgazal /* ena_com_indirect_table_get - Retrieve the indirection table from the device. 8251738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8261738cd3eSNetanel Belgazal * @ind_tbl: indirection table 8271738cd3eSNetanel Belgazal * 8281738cd3eSNetanel Belgazal * Retrieve the RSS indirection table from the device. 8291738cd3eSNetanel Belgazal * 8301738cd3eSNetanel Belgazal * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flash 8311738cd3eSNetanel Belgazal * it to the device, the new configuration will be lost. 8321738cd3eSNetanel Belgazal * 8331738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 8341738cd3eSNetanel Belgazal */ 8351738cd3eSNetanel Belgazal int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl); 8361738cd3eSNetanel Belgazal 8371738cd3eSNetanel Belgazal /* ena_com_allocate_host_info - Allocate host info resources. 8381738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8391738cd3eSNetanel Belgazal * 8401738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 8411738cd3eSNetanel Belgazal */ 8421738cd3eSNetanel Belgazal int ena_com_allocate_host_info(struct ena_com_dev *ena_dev); 8431738cd3eSNetanel Belgazal 8441738cd3eSNetanel Belgazal /* ena_com_allocate_debug_area - Allocate debug area. 8451738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8461738cd3eSNetanel Belgazal * @debug_area_size - debug area size. 8471738cd3eSNetanel Belgazal * 8481738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 8491738cd3eSNetanel Belgazal */ 8501738cd3eSNetanel Belgazal int ena_com_allocate_debug_area(struct ena_com_dev *ena_dev, 8511738cd3eSNetanel Belgazal u32 debug_area_size); 8521738cd3eSNetanel Belgazal 8531738cd3eSNetanel Belgazal /* ena_com_delete_debug_area - Free the debug area resources. 8541738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8551738cd3eSNetanel Belgazal * 8561738cd3eSNetanel Belgazal * Free the allocate debug area. 8571738cd3eSNetanel Belgazal */ 8581738cd3eSNetanel Belgazal void ena_com_delete_debug_area(struct ena_com_dev *ena_dev); 8591738cd3eSNetanel Belgazal 8601738cd3eSNetanel Belgazal /* ena_com_delete_host_info - Free the host info resources. 8611738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8621738cd3eSNetanel Belgazal * 8631738cd3eSNetanel Belgazal * Free the allocate host info. 8641738cd3eSNetanel Belgazal */ 8651738cd3eSNetanel Belgazal void ena_com_delete_host_info(struct ena_com_dev *ena_dev); 8661738cd3eSNetanel Belgazal 8671738cd3eSNetanel Belgazal /* ena_com_set_host_attributes - Update the device with the host 8681738cd3eSNetanel Belgazal * attributes (debug area and host info) base address. 8691738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8701738cd3eSNetanel Belgazal * 8711738cd3eSNetanel Belgazal * @return: 0 on Success and negative value otherwise. 8721738cd3eSNetanel Belgazal */ 8731738cd3eSNetanel Belgazal int ena_com_set_host_attributes(struct ena_com_dev *ena_dev); 8741738cd3eSNetanel Belgazal 8751738cd3eSNetanel Belgazal /* ena_com_create_io_cq - Create io completion queue. 8761738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8771738cd3eSNetanel Belgazal * @io_cq - io completion queue handler 8781738cd3eSNetanel Belgazal 8791738cd3eSNetanel Belgazal * Create IO completion queue. 8801738cd3eSNetanel Belgazal * 8811738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 8821738cd3eSNetanel Belgazal */ 8831738cd3eSNetanel Belgazal int ena_com_create_io_cq(struct ena_com_dev *ena_dev, 8841738cd3eSNetanel Belgazal struct ena_com_io_cq *io_cq); 8851738cd3eSNetanel Belgazal 8861738cd3eSNetanel Belgazal /* ena_com_destroy_io_cq - Destroy io completion queue. 8871738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 8881738cd3eSNetanel Belgazal * @io_cq - io completion queue handler 8891738cd3eSNetanel Belgazal 8901738cd3eSNetanel Belgazal * Destroy IO completion queue. 8911738cd3eSNetanel Belgazal * 8921738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 8931738cd3eSNetanel Belgazal */ 8941738cd3eSNetanel Belgazal int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev, 8951738cd3eSNetanel Belgazal struct ena_com_io_cq *io_cq); 8961738cd3eSNetanel Belgazal 8971738cd3eSNetanel Belgazal /* ena_com_execute_admin_command - Execute admin command 8981738cd3eSNetanel Belgazal * @admin_queue: admin queue. 8991738cd3eSNetanel Belgazal * @cmd: the admin command to execute. 9001738cd3eSNetanel Belgazal * @cmd_size: the command size. 9011738cd3eSNetanel Belgazal * @cmd_completion: command completion return value. 9021738cd3eSNetanel Belgazal * @cmd_comp_size: command completion size. 9031738cd3eSNetanel Belgazal 9041738cd3eSNetanel Belgazal * Submit an admin command and then wait until the device will return a 9051738cd3eSNetanel Belgazal * completion. 9061738cd3eSNetanel Belgazal * The completion will be copyed into cmd_comp. 9071738cd3eSNetanel Belgazal * 9081738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 9091738cd3eSNetanel Belgazal */ 9101738cd3eSNetanel Belgazal int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue, 9111738cd3eSNetanel Belgazal struct ena_admin_aq_entry *cmd, 9121738cd3eSNetanel Belgazal size_t cmd_size, 9131738cd3eSNetanel Belgazal struct ena_admin_acq_entry *cmd_comp, 9141738cd3eSNetanel Belgazal size_t cmd_comp_size); 9151738cd3eSNetanel Belgazal 9161738cd3eSNetanel Belgazal /* ena_com_init_interrupt_moderation - Init interrupt moderation 9171738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9181738cd3eSNetanel Belgazal * 9191738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 9201738cd3eSNetanel Belgazal */ 9211738cd3eSNetanel Belgazal int ena_com_init_interrupt_moderation(struct ena_com_dev *ena_dev); 9221738cd3eSNetanel Belgazal 9231738cd3eSNetanel Belgazal /* ena_com_destroy_interrupt_moderation - Destroy interrupt moderation resources 9241738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9251738cd3eSNetanel Belgazal */ 9261738cd3eSNetanel Belgazal void ena_com_destroy_interrupt_moderation(struct ena_com_dev *ena_dev); 9271738cd3eSNetanel Belgazal 9281738cd3eSNetanel Belgazal /* ena_com_interrupt_moderation_supported - Return if interrupt moderation 9291738cd3eSNetanel Belgazal * capability is supported by the device. 9301738cd3eSNetanel Belgazal * 9311738cd3eSNetanel Belgazal * @return - supported or not. 9321738cd3eSNetanel Belgazal */ 9331738cd3eSNetanel Belgazal bool ena_com_interrupt_moderation_supported(struct ena_com_dev *ena_dev); 9341738cd3eSNetanel Belgazal 9351738cd3eSNetanel Belgazal /* ena_com_config_default_interrupt_moderation_table - Restore the interrupt 9361738cd3eSNetanel Belgazal * moderation table back to the default parameters. 9371738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9381738cd3eSNetanel Belgazal */ 9391738cd3eSNetanel Belgazal void ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev); 9401738cd3eSNetanel Belgazal 9411738cd3eSNetanel Belgazal /* ena_com_update_nonadaptive_moderation_interval_tx - Update the 9421738cd3eSNetanel Belgazal * non-adaptive interval in Tx direction. 9431738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9441738cd3eSNetanel Belgazal * @tx_coalesce_usecs: Interval in usec. 9451738cd3eSNetanel Belgazal * 9461738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 9471738cd3eSNetanel Belgazal */ 9481738cd3eSNetanel Belgazal int ena_com_update_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev, 9491738cd3eSNetanel Belgazal u32 tx_coalesce_usecs); 9501738cd3eSNetanel Belgazal 9511738cd3eSNetanel Belgazal /* ena_com_update_nonadaptive_moderation_interval_rx - Update the 9521738cd3eSNetanel Belgazal * non-adaptive interval in Rx direction. 9531738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9541738cd3eSNetanel Belgazal * @rx_coalesce_usecs: Interval in usec. 9551738cd3eSNetanel Belgazal * 9561738cd3eSNetanel Belgazal * @return - 0 on success, negative value on failure. 9571738cd3eSNetanel Belgazal */ 9581738cd3eSNetanel Belgazal int ena_com_update_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev, 9591738cd3eSNetanel Belgazal u32 rx_coalesce_usecs); 9601738cd3eSNetanel Belgazal 9611738cd3eSNetanel Belgazal /* ena_com_get_nonadaptive_moderation_interval_tx - Retrieve the 9621738cd3eSNetanel Belgazal * non-adaptive interval in Tx direction. 9631738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9641738cd3eSNetanel Belgazal * 9651738cd3eSNetanel Belgazal * @return - interval in usec 9661738cd3eSNetanel Belgazal */ 9671738cd3eSNetanel Belgazal unsigned int ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev); 9681738cd3eSNetanel Belgazal 9691738cd3eSNetanel Belgazal /* ena_com_get_nonadaptive_moderation_interval_rx - Retrieve the 9701738cd3eSNetanel Belgazal * non-adaptive interval in Rx direction. 9711738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9721738cd3eSNetanel Belgazal * 9731738cd3eSNetanel Belgazal * @return - interval in usec 9741738cd3eSNetanel Belgazal */ 9751738cd3eSNetanel Belgazal unsigned int ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev); 9761738cd3eSNetanel Belgazal 9771738cd3eSNetanel Belgazal /* ena_com_init_intr_moderation_entry - Update a single entry in the interrupt 9781738cd3eSNetanel Belgazal * moderation table. 9791738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9801738cd3eSNetanel Belgazal * @level: Interrupt moderation table level 9811738cd3eSNetanel Belgazal * @entry: Entry value 9821738cd3eSNetanel Belgazal * 9831738cd3eSNetanel Belgazal * Update a single entry in the interrupt moderation table. 9841738cd3eSNetanel Belgazal */ 9851738cd3eSNetanel Belgazal void ena_com_init_intr_moderation_entry(struct ena_com_dev *ena_dev, 9861738cd3eSNetanel Belgazal enum ena_intr_moder_level level, 9871738cd3eSNetanel Belgazal struct ena_intr_moder_entry *entry); 9881738cd3eSNetanel Belgazal 9891738cd3eSNetanel Belgazal /* ena_com_get_intr_moderation_entry - Init ena_intr_moder_entry. 9901738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 9911738cd3eSNetanel Belgazal * @level: Interrupt moderation table level 9921738cd3eSNetanel Belgazal * @entry: Entry to fill. 9931738cd3eSNetanel Belgazal * 9941738cd3eSNetanel Belgazal * Initialize the entry according to the adaptive interrupt moderation table. 9951738cd3eSNetanel Belgazal */ 9961738cd3eSNetanel Belgazal void ena_com_get_intr_moderation_entry(struct ena_com_dev *ena_dev, 9971738cd3eSNetanel Belgazal enum ena_intr_moder_level level, 9981738cd3eSNetanel Belgazal struct ena_intr_moder_entry *entry); 9991738cd3eSNetanel Belgazal 1000689b2bdaSArthur Kiyanovski /* ena_com_config_dev_mode - Configure the placement policy of the device. 1001689b2bdaSArthur Kiyanovski * @ena_dev: ENA communication layer struct 1002689b2bdaSArthur Kiyanovski * @llq_features: LLQ feature descriptor, retrieve via 1003689b2bdaSArthur Kiyanovski * ena_com_get_dev_attr_feat. 1004689b2bdaSArthur Kiyanovski * @ena_llq_config: The default driver LLQ parameters configurations 1005689b2bdaSArthur Kiyanovski */ 1006689b2bdaSArthur Kiyanovski int ena_com_config_dev_mode(struct ena_com_dev *ena_dev, 1007689b2bdaSArthur Kiyanovski struct ena_admin_feature_llq_desc *llq_features, 1008689b2bdaSArthur Kiyanovski struct ena_llq_configurations *llq_default_config); 1009689b2bdaSArthur Kiyanovski 10101738cd3eSNetanel Belgazal static inline bool ena_com_get_adaptive_moderation_enabled(struct ena_com_dev *ena_dev) 10111738cd3eSNetanel Belgazal { 10121738cd3eSNetanel Belgazal return ena_dev->adaptive_coalescing; 10131738cd3eSNetanel Belgazal } 10141738cd3eSNetanel Belgazal 10151738cd3eSNetanel Belgazal static inline void ena_com_enable_adaptive_moderation(struct ena_com_dev *ena_dev) 10161738cd3eSNetanel Belgazal { 10171738cd3eSNetanel Belgazal ena_dev->adaptive_coalescing = true; 10181738cd3eSNetanel Belgazal } 10191738cd3eSNetanel Belgazal 10201738cd3eSNetanel Belgazal static inline void ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_dev) 10211738cd3eSNetanel Belgazal { 10221738cd3eSNetanel Belgazal ena_dev->adaptive_coalescing = false; 10231738cd3eSNetanel Belgazal } 10241738cd3eSNetanel Belgazal 10251738cd3eSNetanel Belgazal /* ena_com_calculate_interrupt_delay - Calculate new interrupt delay 10261738cd3eSNetanel Belgazal * @ena_dev: ENA communication layer struct 10271738cd3eSNetanel Belgazal * @pkts: Number of packets since the last update 10281738cd3eSNetanel Belgazal * @bytes: Number of bytes received since the last update. 10291738cd3eSNetanel Belgazal * @smoothed_interval: Returned interval 10301738cd3eSNetanel Belgazal * @moder_tbl_idx: Current table level as input update new level as return 10311738cd3eSNetanel Belgazal * value. 10321738cd3eSNetanel Belgazal */ 10331738cd3eSNetanel Belgazal static inline void ena_com_calculate_interrupt_delay(struct ena_com_dev *ena_dev, 10341738cd3eSNetanel Belgazal unsigned int pkts, 10351738cd3eSNetanel Belgazal unsigned int bytes, 10361738cd3eSNetanel Belgazal unsigned int *smoothed_interval, 10371738cd3eSNetanel Belgazal unsigned int *moder_tbl_idx) 10381738cd3eSNetanel Belgazal { 10391738cd3eSNetanel Belgazal enum ena_intr_moder_level curr_moder_idx, new_moder_idx; 10401738cd3eSNetanel Belgazal struct ena_intr_moder_entry *curr_moder_entry; 10411738cd3eSNetanel Belgazal struct ena_intr_moder_entry *pred_moder_entry; 10421738cd3eSNetanel Belgazal struct ena_intr_moder_entry *new_moder_entry; 10431738cd3eSNetanel Belgazal struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; 10441738cd3eSNetanel Belgazal unsigned int interval; 10451738cd3eSNetanel Belgazal 10461738cd3eSNetanel Belgazal /* We apply adaptive moderation on Rx path only. 10471738cd3eSNetanel Belgazal * Tx uses static interrupt moderation. 10481738cd3eSNetanel Belgazal */ 10491738cd3eSNetanel Belgazal if (!pkts || !bytes) 10501738cd3eSNetanel Belgazal /* Tx interrupt, or spurious interrupt, 10511738cd3eSNetanel Belgazal * in both cases we just use same delay values 10521738cd3eSNetanel Belgazal */ 10531738cd3eSNetanel Belgazal return; 10541738cd3eSNetanel Belgazal 10551738cd3eSNetanel Belgazal curr_moder_idx = (enum ena_intr_moder_level)(*moder_tbl_idx); 10561738cd3eSNetanel Belgazal if (unlikely(curr_moder_idx >= ENA_INTR_MAX_NUM_OF_LEVELS)) { 10571738cd3eSNetanel Belgazal pr_err("Wrong moderation index %u\n", curr_moder_idx); 10581738cd3eSNetanel Belgazal return; 10591738cd3eSNetanel Belgazal } 10601738cd3eSNetanel Belgazal 10611738cd3eSNetanel Belgazal curr_moder_entry = &intr_moder_tbl[curr_moder_idx]; 10621738cd3eSNetanel Belgazal new_moder_idx = curr_moder_idx; 10631738cd3eSNetanel Belgazal 10641738cd3eSNetanel Belgazal if (curr_moder_idx == ENA_INTR_MODER_LOWEST) { 10651738cd3eSNetanel Belgazal if ((pkts > curr_moder_entry->pkts_per_interval) || 10661738cd3eSNetanel Belgazal (bytes > curr_moder_entry->bytes_per_interval)) 10671738cd3eSNetanel Belgazal new_moder_idx = 10681738cd3eSNetanel Belgazal (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE); 10691738cd3eSNetanel Belgazal } else { 10701738cd3eSNetanel Belgazal pred_moder_entry = &intr_moder_tbl[curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE]; 10711738cd3eSNetanel Belgazal 10721738cd3eSNetanel Belgazal if ((pkts <= pred_moder_entry->pkts_per_interval) || 10731738cd3eSNetanel Belgazal (bytes <= pred_moder_entry->bytes_per_interval)) 10741738cd3eSNetanel Belgazal new_moder_idx = 10751738cd3eSNetanel Belgazal (enum ena_intr_moder_level)(curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE); 10761738cd3eSNetanel Belgazal else if ((pkts > curr_moder_entry->pkts_per_interval) || 10771738cd3eSNetanel Belgazal (bytes > curr_moder_entry->bytes_per_interval)) { 10781738cd3eSNetanel Belgazal if (curr_moder_idx != ENA_INTR_MODER_HIGHEST) 10791738cd3eSNetanel Belgazal new_moder_idx = 10801738cd3eSNetanel Belgazal (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE); 10811738cd3eSNetanel Belgazal } 10821738cd3eSNetanel Belgazal } 10831738cd3eSNetanel Belgazal new_moder_entry = &intr_moder_tbl[new_moder_idx]; 10841738cd3eSNetanel Belgazal 10851738cd3eSNetanel Belgazal interval = new_moder_entry->intr_moder_interval; 10861738cd3eSNetanel Belgazal *smoothed_interval = ( 10871738cd3eSNetanel Belgazal (interval * ENA_INTR_DELAY_NEW_VALUE_WEIGHT + 10881738cd3eSNetanel Belgazal ENA_INTR_DELAY_OLD_VALUE_WEIGHT * (*smoothed_interval)) + 5) / 10891738cd3eSNetanel Belgazal 10; 10901738cd3eSNetanel Belgazal 10911738cd3eSNetanel Belgazal *moder_tbl_idx = new_moder_idx; 10921738cd3eSNetanel Belgazal } 10931738cd3eSNetanel Belgazal 10941738cd3eSNetanel Belgazal /* ena_com_update_intr_reg - Prepare interrupt register 10951738cd3eSNetanel Belgazal * @intr_reg: interrupt register to update. 10961738cd3eSNetanel Belgazal * @rx_delay_interval: Rx interval in usecs 10971738cd3eSNetanel Belgazal * @tx_delay_interval: Tx interval in usecs 10981738cd3eSNetanel Belgazal * @unmask: unask enable/disable 10991738cd3eSNetanel Belgazal * 11001738cd3eSNetanel Belgazal * Prepare interrupt update register with the supplied parameters. 11011738cd3eSNetanel Belgazal */ 11021738cd3eSNetanel Belgazal static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg, 11031738cd3eSNetanel Belgazal u32 rx_delay_interval, 11041738cd3eSNetanel Belgazal u32 tx_delay_interval, 11051738cd3eSNetanel Belgazal bool unmask) 11061738cd3eSNetanel Belgazal { 11071738cd3eSNetanel Belgazal intr_reg->intr_control = 0; 11081738cd3eSNetanel Belgazal intr_reg->intr_control |= rx_delay_interval & 11091738cd3eSNetanel Belgazal ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK; 11101738cd3eSNetanel Belgazal 11111738cd3eSNetanel Belgazal intr_reg->intr_control |= 11121738cd3eSNetanel Belgazal (tx_delay_interval << ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT) 11131738cd3eSNetanel Belgazal & ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK; 11141738cd3eSNetanel Belgazal 11151738cd3eSNetanel Belgazal if (unmask) 11161738cd3eSNetanel Belgazal intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK; 11171738cd3eSNetanel Belgazal } 11181738cd3eSNetanel Belgazal 1119689b2bdaSArthur Kiyanovski static inline u8 *ena_com_get_next_bounce_buffer(struct ena_com_io_bounce_buffer_control *bounce_buf_ctrl) 1120689b2bdaSArthur Kiyanovski { 1121689b2bdaSArthur Kiyanovski u16 size, buffers_num; 1122689b2bdaSArthur Kiyanovski u8 *buf; 1123689b2bdaSArthur Kiyanovski 1124689b2bdaSArthur Kiyanovski size = bounce_buf_ctrl->buffer_size; 1125689b2bdaSArthur Kiyanovski buffers_num = bounce_buf_ctrl->buffers_num; 1126689b2bdaSArthur Kiyanovski 1127689b2bdaSArthur Kiyanovski buf = bounce_buf_ctrl->base_buffer + 1128689b2bdaSArthur Kiyanovski (bounce_buf_ctrl->next_to_use++ & (buffers_num - 1)) * size; 1129689b2bdaSArthur Kiyanovski 1130689b2bdaSArthur Kiyanovski prefetchw(bounce_buf_ctrl->base_buffer + 1131689b2bdaSArthur Kiyanovski (bounce_buf_ctrl->next_to_use & (buffers_num - 1)) * size); 1132689b2bdaSArthur Kiyanovski 1133689b2bdaSArthur Kiyanovski return buf; 1134689b2bdaSArthur Kiyanovski } 1135689b2bdaSArthur Kiyanovski 11361738cd3eSNetanel Belgazal #endif /* !(ENA_COM) */ 1137