145c98dacSZbigniew Bodek /*- 245c98dacSZbigniew Bodek * BSD LICENSE 345c98dacSZbigniew Bodek * 4*67ec48bbSMarcin Wojtas * Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates. 545c98dacSZbigniew Bodek * All rights reserved. 645c98dacSZbigniew Bodek * 745c98dacSZbigniew Bodek * Redistribution and use in source and binary forms, with or without 845c98dacSZbigniew Bodek * modification, are permitted provided that the following conditions 945c98dacSZbigniew Bodek * are met: 1045c98dacSZbigniew Bodek * 1145c98dacSZbigniew Bodek * * Redistributions of source code must retain the above copyright 1245c98dacSZbigniew Bodek * notice, this list of conditions and the following disclaimer. 1345c98dacSZbigniew Bodek * * Redistributions in binary form must reproduce the above copyright 1445c98dacSZbigniew Bodek * notice, this list of conditions and the following disclaimer in 1545c98dacSZbigniew Bodek * the documentation and/or other materials provided with the 1645c98dacSZbigniew Bodek * distribution. 1745c98dacSZbigniew Bodek * * Neither the name of copyright holder nor the names of its 1845c98dacSZbigniew Bodek * contributors may be used to endorse or promote products derived 1945c98dacSZbigniew Bodek * from this software without specific prior written permission. 2045c98dacSZbigniew Bodek * 2145c98dacSZbigniew Bodek * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2245c98dacSZbigniew Bodek * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2345c98dacSZbigniew Bodek * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2445c98dacSZbigniew Bodek * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2545c98dacSZbigniew Bodek * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2645c98dacSZbigniew Bodek * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2745c98dacSZbigniew Bodek * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2845c98dacSZbigniew Bodek * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2945c98dacSZbigniew Bodek * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3045c98dacSZbigniew Bodek * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3145c98dacSZbigniew Bodek * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3245c98dacSZbigniew Bodek */ 3345c98dacSZbigniew Bodek 3445c98dacSZbigniew Bodek #ifndef ENA_COM 3545c98dacSZbigniew Bodek #define ENA_COM 3645c98dacSZbigniew Bodek 3745c98dacSZbigniew Bodek #include "ena_plat.h" 3845c98dacSZbigniew Bodek 3945c98dacSZbigniew Bodek #define ENA_MAX_NUM_IO_QUEUES 128U 4045c98dacSZbigniew Bodek /* We need to queues for each IO (on for Tx and one for Rx) */ 4145c98dacSZbigniew Bodek #define ENA_TOTAL_NUM_QUEUES (2 * (ENA_MAX_NUM_IO_QUEUES)) 4245c98dacSZbigniew Bodek 4345c98dacSZbigniew Bodek #define ENA_MAX_HANDLERS 256 4445c98dacSZbigniew Bodek 4545c98dacSZbigniew Bodek #define ENA_MAX_PHYS_ADDR_SIZE_BITS 48 4645c98dacSZbigniew Bodek 4745c98dacSZbigniew Bodek /* Unit in usec */ 4845c98dacSZbigniew Bodek #define ENA_REG_READ_TIMEOUT 200000 4945c98dacSZbigniew Bodek 5045c98dacSZbigniew Bodek #define ADMIN_SQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aq_entry)) 5145c98dacSZbigniew Bodek #define ADMIN_CQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_acq_entry)) 5245c98dacSZbigniew Bodek #define ADMIN_AENQ_SIZE(depth) ((depth) * sizeof(struct ena_admin_aenq_entry)) 5345c98dacSZbigniew Bodek 5445c98dacSZbigniew Bodek /*****************************************************************************/ 5545c98dacSZbigniew Bodek /*****************************************************************************/ 5645c98dacSZbigniew Bodek /* ENA adaptive interrupt moderation settings */ 5745c98dacSZbigniew Bodek 5845c98dacSZbigniew Bodek #define ENA_INTR_LOWEST_USECS (0) 5945c98dacSZbigniew Bodek #define ENA_INTR_LOWEST_PKTS (3) 6045c98dacSZbigniew Bodek #define ENA_INTR_LOWEST_BYTES (2 * 1524) 6145c98dacSZbigniew Bodek 6245c98dacSZbigniew Bodek #define ENA_INTR_LOW_USECS (32) 6345c98dacSZbigniew Bodek #define ENA_INTR_LOW_PKTS (12) 6445c98dacSZbigniew Bodek #define ENA_INTR_LOW_BYTES (16 * 1024) 6545c98dacSZbigniew Bodek 6645c98dacSZbigniew Bodek #define ENA_INTR_MID_USECS (80) 6745c98dacSZbigniew Bodek #define ENA_INTR_MID_PKTS (48) 6845c98dacSZbigniew Bodek #define ENA_INTR_MID_BYTES (64 * 1024) 6945c98dacSZbigniew Bodek 7045c98dacSZbigniew Bodek #define ENA_INTR_HIGH_USECS (128) 7145c98dacSZbigniew Bodek #define ENA_INTR_HIGH_PKTS (96) 7245c98dacSZbigniew Bodek #define ENA_INTR_HIGH_BYTES (128 * 1024) 7345c98dacSZbigniew Bodek 7445c98dacSZbigniew Bodek #define ENA_INTR_HIGHEST_USECS (192) 7545c98dacSZbigniew Bodek #define ENA_INTR_HIGHEST_PKTS (128) 7645c98dacSZbigniew Bodek #define ENA_INTR_HIGHEST_BYTES (192 * 1024) 7745c98dacSZbigniew Bodek 7845c98dacSZbigniew Bodek #define ENA_INTR_INITIAL_TX_INTERVAL_USECS 196 7945c98dacSZbigniew Bodek #define ENA_INTR_INITIAL_RX_INTERVAL_USECS 4 8045c98dacSZbigniew Bodek #define ENA_INTR_DELAY_OLD_VALUE_WEIGHT 6 8145c98dacSZbigniew Bodek #define ENA_INTR_DELAY_NEW_VALUE_WEIGHT 4 8245c98dacSZbigniew Bodek #define ENA_INTR_MODER_LEVEL_STRIDE 1 8345c98dacSZbigniew Bodek #define ENA_INTR_BYTE_COUNT_NOT_SUPPORTED 0xFFFFFF 8445c98dacSZbigniew Bodek 8545c98dacSZbigniew Bodek #define ENA_HW_HINTS_NO_TIMEOUT 0xFFFF 8645c98dacSZbigniew Bodek 87*67ec48bbSMarcin Wojtas #define ENA_FEATURE_MAX_QUEUE_EXT_VER 1 88*67ec48bbSMarcin Wojtas 8945c98dacSZbigniew Bodek enum ena_intr_moder_level { 9045c98dacSZbigniew Bodek ENA_INTR_MODER_LOWEST = 0, 9145c98dacSZbigniew Bodek ENA_INTR_MODER_LOW, 9245c98dacSZbigniew Bodek ENA_INTR_MODER_MID, 9345c98dacSZbigniew Bodek ENA_INTR_MODER_HIGH, 9445c98dacSZbigniew Bodek ENA_INTR_MODER_HIGHEST, 9545c98dacSZbigniew Bodek ENA_INTR_MAX_NUM_OF_LEVELS, 9645c98dacSZbigniew Bodek }; 9745c98dacSZbigniew Bodek 98*67ec48bbSMarcin Wojtas struct ena_llq_configurations { 99*67ec48bbSMarcin Wojtas enum ena_admin_llq_header_location llq_header_location; 100*67ec48bbSMarcin Wojtas enum ena_admin_llq_ring_entry_size llq_ring_entry_size; 101*67ec48bbSMarcin Wojtas enum ena_admin_llq_stride_ctrl llq_stride_ctrl; 102*67ec48bbSMarcin Wojtas enum ena_admin_llq_num_descs_before_header llq_num_decs_before_header; 103*67ec48bbSMarcin Wojtas u16 llq_ring_entry_size_value; 104*67ec48bbSMarcin Wojtas }; 105*67ec48bbSMarcin Wojtas 10645c98dacSZbigniew Bodek struct ena_intr_moder_entry { 10745c98dacSZbigniew Bodek unsigned int intr_moder_interval; 10845c98dacSZbigniew Bodek unsigned int pkts_per_interval; 10945c98dacSZbigniew Bodek unsigned int bytes_per_interval; 11045c98dacSZbigniew Bodek }; 11145c98dacSZbigniew Bodek 11245c98dacSZbigniew Bodek enum queue_direction { 11345c98dacSZbigniew Bodek ENA_COM_IO_QUEUE_DIRECTION_TX, 11445c98dacSZbigniew Bodek ENA_COM_IO_QUEUE_DIRECTION_RX 11545c98dacSZbigniew Bodek }; 11645c98dacSZbigniew Bodek 11745c98dacSZbigniew Bodek struct ena_com_buf { 11845c98dacSZbigniew Bodek dma_addr_t paddr; /**< Buffer physical address */ 11945c98dacSZbigniew Bodek u16 len; /**< Buffer length in bytes */ 12045c98dacSZbigniew Bodek }; 12145c98dacSZbigniew Bodek 12245c98dacSZbigniew Bodek struct ena_com_rx_buf_info { 12345c98dacSZbigniew Bodek u16 len; 12445c98dacSZbigniew Bodek u16 req_id; 12545c98dacSZbigniew Bodek }; 12645c98dacSZbigniew Bodek 12745c98dacSZbigniew Bodek struct ena_com_io_desc_addr { 12845c98dacSZbigniew Bodek u8 __iomem *pbuf_dev_addr; /* LLQ address */ 12945c98dacSZbigniew Bodek u8 *virt_addr; 13045c98dacSZbigniew Bodek dma_addr_t phys_addr; 13145c98dacSZbigniew Bodek ena_mem_handle_t mem_handle; 13245c98dacSZbigniew Bodek }; 13345c98dacSZbigniew Bodek 13445c98dacSZbigniew Bodek struct ena_com_tx_meta { 13545c98dacSZbigniew Bodek u16 mss; 13645c98dacSZbigniew Bodek u16 l3_hdr_len; 13745c98dacSZbigniew Bodek u16 l3_hdr_offset; 13845c98dacSZbigniew Bodek u16 l4_hdr_len; /* In words */ 13945c98dacSZbigniew Bodek }; 14045c98dacSZbigniew Bodek 141a195fab0SMarcin Wojtas struct ena_com_llq_info { 142*67ec48bbSMarcin Wojtas u16 header_location_ctrl; 143a195fab0SMarcin Wojtas u16 desc_stride_ctrl; 144*67ec48bbSMarcin Wojtas u16 desc_list_entry_size_ctrl; 145a195fab0SMarcin Wojtas u16 desc_list_entry_size; 146a195fab0SMarcin Wojtas u16 descs_num_before_header; 147a195fab0SMarcin Wojtas u16 descs_per_entry; 148*67ec48bbSMarcin Wojtas u16 max_entries_in_tx_burst; 149a195fab0SMarcin Wojtas }; 150a195fab0SMarcin Wojtas 15145c98dacSZbigniew Bodek struct ena_com_io_cq { 15245c98dacSZbigniew Bodek struct ena_com_io_desc_addr cdesc_addr; 15345c98dacSZbigniew Bodek void *bus; 15445c98dacSZbigniew Bodek 15545c98dacSZbigniew Bodek /* Interrupt unmask register */ 15645c98dacSZbigniew Bodek u32 __iomem *unmask_reg; 15745c98dacSZbigniew Bodek 15845c98dacSZbigniew Bodek /* The completion queue head doorbell register */ 15945c98dacSZbigniew Bodek u32 __iomem *cq_head_db_reg; 16045c98dacSZbigniew Bodek 16145c98dacSZbigniew Bodek /* numa configuration register (for TPH) */ 16245c98dacSZbigniew Bodek u32 __iomem *numa_node_cfg_reg; 16345c98dacSZbigniew Bodek 16445c98dacSZbigniew Bodek /* The value to write to the above register to unmask 16545c98dacSZbigniew Bodek * the interrupt of this queue 16645c98dacSZbigniew Bodek */ 16745c98dacSZbigniew Bodek u32 msix_vector; 16845c98dacSZbigniew Bodek 16945c98dacSZbigniew Bodek enum queue_direction direction; 17045c98dacSZbigniew Bodek 17145c98dacSZbigniew Bodek /* holds the number of cdesc of the current packet */ 17245c98dacSZbigniew Bodek u16 cur_rx_pkt_cdesc_count; 17345c98dacSZbigniew Bodek /* save the firt cdesc idx of the current packet */ 17445c98dacSZbigniew Bodek u16 cur_rx_pkt_cdesc_start_idx; 17545c98dacSZbigniew Bodek 17645c98dacSZbigniew Bodek u16 q_depth; 17745c98dacSZbigniew Bodek /* Caller qid */ 17845c98dacSZbigniew Bodek u16 qid; 17945c98dacSZbigniew Bodek 18045c98dacSZbigniew Bodek /* Device queue index */ 18145c98dacSZbigniew Bodek u16 idx; 18245c98dacSZbigniew Bodek u16 head; 18345c98dacSZbigniew Bodek u16 last_head_update; 18445c98dacSZbigniew Bodek u8 phase; 18545c98dacSZbigniew Bodek u8 cdesc_entry_size_in_bytes; 18645c98dacSZbigniew Bodek 18745c98dacSZbigniew Bodek } ____cacheline_aligned; 18845c98dacSZbigniew Bodek 189a195fab0SMarcin Wojtas struct ena_com_io_bounce_buffer_control { 190a195fab0SMarcin Wojtas u8 *base_buffer; 191a195fab0SMarcin Wojtas u16 next_to_use; 192a195fab0SMarcin Wojtas u16 buffer_size; 193a195fab0SMarcin Wojtas u16 buffers_num; /* Must be a power of 2 */ 194a195fab0SMarcin Wojtas }; 195a195fab0SMarcin Wojtas 196a195fab0SMarcin Wojtas /* This struct is to keep tracking the current location of the next llq entry */ 197a195fab0SMarcin Wojtas struct ena_com_llq_pkt_ctrl { 198a195fab0SMarcin Wojtas u8 *curr_bounce_buf; 199a195fab0SMarcin Wojtas u16 idx; 200a195fab0SMarcin Wojtas u16 descs_left_in_line; 201a195fab0SMarcin Wojtas }; 202a195fab0SMarcin Wojtas 20345c98dacSZbigniew Bodek struct ena_com_io_sq { 20445c98dacSZbigniew Bodek struct ena_com_io_desc_addr desc_addr; 20545c98dacSZbigniew Bodek void *bus; 20645c98dacSZbigniew Bodek 20745c98dacSZbigniew Bodek u32 __iomem *db_addr; 20845c98dacSZbigniew Bodek u8 __iomem *header_addr; 20945c98dacSZbigniew Bodek 21045c98dacSZbigniew Bodek enum queue_direction direction; 21145c98dacSZbigniew Bodek enum ena_admin_placement_policy_type mem_queue_type; 21245c98dacSZbigniew Bodek 21345c98dacSZbigniew Bodek u32 msix_vector; 21445c98dacSZbigniew Bodek struct ena_com_tx_meta cached_tx_meta; 215a195fab0SMarcin Wojtas struct ena_com_llq_info llq_info; 216a195fab0SMarcin Wojtas struct ena_com_llq_pkt_ctrl llq_buf_ctrl; 217a195fab0SMarcin Wojtas struct ena_com_io_bounce_buffer_control bounce_buf_ctrl; 21845c98dacSZbigniew Bodek 21945c98dacSZbigniew Bodek u16 q_depth; 22045c98dacSZbigniew Bodek u16 qid; 22145c98dacSZbigniew Bodek 22245c98dacSZbigniew Bodek u16 idx; 22345c98dacSZbigniew Bodek u16 tail; 22445c98dacSZbigniew Bodek u16 next_to_comp; 225a195fab0SMarcin Wojtas u16 llq_last_copy_tail; 22645c98dacSZbigniew Bodek u32 tx_max_header_size; 22745c98dacSZbigniew Bodek u8 phase; 22845c98dacSZbigniew Bodek u8 desc_entry_size; 22945c98dacSZbigniew Bodek u8 dma_addr_bits; 230*67ec48bbSMarcin Wojtas u16 entries_in_tx_burst_left; 23145c98dacSZbigniew Bodek } ____cacheline_aligned; 23245c98dacSZbigniew Bodek 23345c98dacSZbigniew Bodek struct ena_com_admin_cq { 23445c98dacSZbigniew Bodek struct ena_admin_acq_entry *entries; 23545c98dacSZbigniew Bodek ena_mem_handle_t mem_handle; 23645c98dacSZbigniew Bodek dma_addr_t dma_addr; 23745c98dacSZbigniew Bodek 23845c98dacSZbigniew Bodek u16 head; 23945c98dacSZbigniew Bodek u8 phase; 24045c98dacSZbigniew Bodek }; 24145c98dacSZbigniew Bodek 24245c98dacSZbigniew Bodek struct ena_com_admin_sq { 24345c98dacSZbigniew Bodek struct ena_admin_aq_entry *entries; 24445c98dacSZbigniew Bodek ena_mem_handle_t mem_handle; 24545c98dacSZbigniew Bodek dma_addr_t dma_addr; 24645c98dacSZbigniew Bodek 24745c98dacSZbigniew Bodek u32 __iomem *db_addr; 24845c98dacSZbigniew Bodek 24945c98dacSZbigniew Bodek u16 head; 25045c98dacSZbigniew Bodek u16 tail; 25145c98dacSZbigniew Bodek u8 phase; 25245c98dacSZbigniew Bodek 25345c98dacSZbigniew Bodek }; 25445c98dacSZbigniew Bodek 25545c98dacSZbigniew Bodek struct ena_com_stats_admin { 25645c98dacSZbigniew Bodek u32 aborted_cmd; 25745c98dacSZbigniew Bodek u32 submitted_cmd; 25845c98dacSZbigniew Bodek u32 completed_cmd; 25945c98dacSZbigniew Bodek u32 out_of_space; 26045c98dacSZbigniew Bodek u32 no_completion; 26145c98dacSZbigniew Bodek }; 26245c98dacSZbigniew Bodek 26345c98dacSZbigniew Bodek struct ena_com_admin_queue { 26445c98dacSZbigniew Bodek void *q_dmadev; 26545c98dacSZbigniew Bodek void *bus; 26645c98dacSZbigniew Bodek ena_spinlock_t q_lock; /* spinlock for the admin queue */ 26745c98dacSZbigniew Bodek 26845c98dacSZbigniew Bodek struct ena_comp_ctx *comp_ctx; 26945c98dacSZbigniew Bodek u32 completion_timeout; 27045c98dacSZbigniew Bodek u16 q_depth; 27145c98dacSZbigniew Bodek struct ena_com_admin_cq cq; 27245c98dacSZbigniew Bodek struct ena_com_admin_sq sq; 27345c98dacSZbigniew Bodek 27445c98dacSZbigniew Bodek /* Indicate if the admin queue should poll for completion */ 27545c98dacSZbigniew Bodek bool polling; 27645c98dacSZbigniew Bodek 27745c98dacSZbigniew Bodek u16 curr_cmd_id; 27845c98dacSZbigniew Bodek 27945c98dacSZbigniew Bodek /* Indicate that the ena was initialized and can 28045c98dacSZbigniew Bodek * process new admin commands 28145c98dacSZbigniew Bodek */ 28245c98dacSZbigniew Bodek bool running_state; 28345c98dacSZbigniew Bodek 28445c98dacSZbigniew Bodek /* Count the number of outstanding admin commands */ 28545c98dacSZbigniew Bodek ena_atomic32_t outstanding_cmds; 28645c98dacSZbigniew Bodek 28745c98dacSZbigniew Bodek struct ena_com_stats_admin stats; 28845c98dacSZbigniew Bodek }; 28945c98dacSZbigniew Bodek 29045c98dacSZbigniew Bodek struct ena_aenq_handlers; 29145c98dacSZbigniew Bodek 29245c98dacSZbigniew Bodek struct ena_com_aenq { 29345c98dacSZbigniew Bodek u16 head; 29445c98dacSZbigniew Bodek u8 phase; 29545c98dacSZbigniew Bodek struct ena_admin_aenq_entry *entries; 29645c98dacSZbigniew Bodek dma_addr_t dma_addr; 29745c98dacSZbigniew Bodek ena_mem_handle_t mem_handle; 29845c98dacSZbigniew Bodek u16 q_depth; 29945c98dacSZbigniew Bodek struct ena_aenq_handlers *aenq_handlers; 30045c98dacSZbigniew Bodek }; 30145c98dacSZbigniew Bodek 30245c98dacSZbigniew Bodek struct ena_com_mmio_read { 30345c98dacSZbigniew Bodek struct ena_admin_ena_mmio_req_read_less_resp *read_resp; 30445c98dacSZbigniew Bodek dma_addr_t read_resp_dma_addr; 30545c98dacSZbigniew Bodek ena_mem_handle_t read_resp_mem_handle; 30645c98dacSZbigniew Bodek u32 reg_read_to; /* in us */ 30745c98dacSZbigniew Bodek u16 seq_num; 30845c98dacSZbigniew Bodek bool readless_supported; 30945c98dacSZbigniew Bodek /* spin lock to ensure a single outstanding read */ 31045c98dacSZbigniew Bodek ena_spinlock_t lock; 31145c98dacSZbigniew Bodek }; 31245c98dacSZbigniew Bodek 31345c98dacSZbigniew Bodek struct ena_rss { 31445c98dacSZbigniew Bodek /* Indirect table */ 31545c98dacSZbigniew Bodek u16 *host_rss_ind_tbl; 31645c98dacSZbigniew Bodek struct ena_admin_rss_ind_table_entry *rss_ind_tbl; 31745c98dacSZbigniew Bodek dma_addr_t rss_ind_tbl_dma_addr; 31845c98dacSZbigniew Bodek ena_mem_handle_t rss_ind_tbl_mem_handle; 31945c98dacSZbigniew Bodek u16 tbl_log_size; 32045c98dacSZbigniew Bodek 32145c98dacSZbigniew Bodek /* Hash key */ 32245c98dacSZbigniew Bodek enum ena_admin_hash_functions hash_func; 32345c98dacSZbigniew Bodek struct ena_admin_feature_rss_flow_hash_control *hash_key; 32445c98dacSZbigniew Bodek dma_addr_t hash_key_dma_addr; 32545c98dacSZbigniew Bodek ena_mem_handle_t hash_key_mem_handle; 32645c98dacSZbigniew Bodek u32 hash_init_val; 32745c98dacSZbigniew Bodek 32845c98dacSZbigniew Bodek /* Flow Control */ 32945c98dacSZbigniew Bodek struct ena_admin_feature_rss_hash_control *hash_ctrl; 33045c98dacSZbigniew Bodek dma_addr_t hash_ctrl_dma_addr; 33145c98dacSZbigniew Bodek ena_mem_handle_t hash_ctrl_mem_handle; 33245c98dacSZbigniew Bodek 33345c98dacSZbigniew Bodek }; 33445c98dacSZbigniew Bodek 33545c98dacSZbigniew Bodek struct ena_host_attribute { 33645c98dacSZbigniew Bodek /* Debug area */ 33745c98dacSZbigniew Bodek u8 *debug_area_virt_addr; 33845c98dacSZbigniew Bodek dma_addr_t debug_area_dma_addr; 33945c98dacSZbigniew Bodek ena_mem_handle_t debug_area_dma_handle; 34045c98dacSZbigniew Bodek u32 debug_area_size; 34145c98dacSZbigniew Bodek 34245c98dacSZbigniew Bodek /* Host information */ 34345c98dacSZbigniew Bodek struct ena_admin_host_info *host_info; 34445c98dacSZbigniew Bodek dma_addr_t host_info_dma_addr; 34545c98dacSZbigniew Bodek ena_mem_handle_t host_info_dma_handle; 34645c98dacSZbigniew Bodek }; 34745c98dacSZbigniew Bodek 348*67ec48bbSMarcin Wojtas struct ena_extra_properties_strings { 349*67ec48bbSMarcin Wojtas u8 *virt_addr; 350*67ec48bbSMarcin Wojtas dma_addr_t dma_addr; 351*67ec48bbSMarcin Wojtas ena_mem_handle_t dma_handle; 352*67ec48bbSMarcin Wojtas u32 size; 353*67ec48bbSMarcin Wojtas }; 354*67ec48bbSMarcin Wojtas 35545c98dacSZbigniew Bodek /* Each ena_dev is a PCI function. */ 35645c98dacSZbigniew Bodek struct ena_com_dev { 35745c98dacSZbigniew Bodek struct ena_com_admin_queue admin_queue; 35845c98dacSZbigniew Bodek struct ena_com_aenq aenq; 35945c98dacSZbigniew Bodek struct ena_com_io_cq io_cq_queues[ENA_TOTAL_NUM_QUEUES]; 36045c98dacSZbigniew Bodek struct ena_com_io_sq io_sq_queues[ENA_TOTAL_NUM_QUEUES]; 36145c98dacSZbigniew Bodek u8 __iomem *reg_bar; 36245c98dacSZbigniew Bodek void __iomem *mem_bar; 36345c98dacSZbigniew Bodek void *dmadev; 36445c98dacSZbigniew Bodek void *bus; 365a195fab0SMarcin Wojtas 36645c98dacSZbigniew Bodek enum ena_admin_placement_policy_type tx_mem_queue_type; 36745c98dacSZbigniew Bodek u32 tx_max_header_size; 36845c98dacSZbigniew Bodek u16 stats_func; /* Selected function for extended statistic dump */ 36945c98dacSZbigniew Bodek u16 stats_queue; /* Selected queue for extended statistic dump */ 37045c98dacSZbigniew Bodek 37145c98dacSZbigniew Bodek struct ena_com_mmio_read mmio_read; 37245c98dacSZbigniew Bodek 37345c98dacSZbigniew Bodek struct ena_rss rss; 37445c98dacSZbigniew Bodek u32 supported_features; 37545c98dacSZbigniew Bodek u32 dma_addr_bits; 37645c98dacSZbigniew Bodek 37745c98dacSZbigniew Bodek struct ena_host_attribute host_attr; 37845c98dacSZbigniew Bodek bool adaptive_coalescing; 37945c98dacSZbigniew Bodek u16 intr_delay_resolution; 38045c98dacSZbigniew Bodek u32 intr_moder_tx_interval; 38145c98dacSZbigniew Bodek struct ena_intr_moder_entry *intr_moder_tbl; 382a195fab0SMarcin Wojtas 383a195fab0SMarcin Wojtas struct ena_com_llq_info llq_info; 384*67ec48bbSMarcin Wojtas struct ena_extra_properties_strings extra_properties_strings; 38545c98dacSZbigniew Bodek }; 38645c98dacSZbigniew Bodek 38745c98dacSZbigniew Bodek struct ena_com_dev_get_features_ctx { 38845c98dacSZbigniew Bodek struct ena_admin_queue_feature_desc max_queues; 389*67ec48bbSMarcin Wojtas struct ena_admin_queue_ext_feature_desc max_queue_ext; 39045c98dacSZbigniew Bodek struct ena_admin_device_attr_feature_desc dev_attr; 39145c98dacSZbigniew Bodek struct ena_admin_feature_aenq_desc aenq; 39245c98dacSZbigniew Bodek struct ena_admin_feature_offload_desc offload; 39345c98dacSZbigniew Bodek struct ena_admin_ena_hw_hints hw_hints; 394a195fab0SMarcin Wojtas struct ena_admin_feature_llq_desc llq; 395*67ec48bbSMarcin Wojtas struct ena_admin_feature_rss_ind_table ind_table; 39645c98dacSZbigniew Bodek }; 39745c98dacSZbigniew Bodek 39845c98dacSZbigniew Bodek struct ena_com_create_io_ctx { 39945c98dacSZbigniew Bodek enum ena_admin_placement_policy_type mem_queue_type; 40045c98dacSZbigniew Bodek enum queue_direction direction; 40145c98dacSZbigniew Bodek int numa_node; 40245c98dacSZbigniew Bodek u32 msix_vector; 40345c98dacSZbigniew Bodek u16 queue_size; 40445c98dacSZbigniew Bodek u16 qid; 40545c98dacSZbigniew Bodek }; 40645c98dacSZbigniew Bodek 40745c98dacSZbigniew Bodek typedef void (*ena_aenq_handler)(void *data, 40845c98dacSZbigniew Bodek struct ena_admin_aenq_entry *aenq_e); 40945c98dacSZbigniew Bodek 41045c98dacSZbigniew Bodek /* Holds aenq handlers. Indexed by AENQ event group */ 41145c98dacSZbigniew Bodek struct ena_aenq_handlers { 41245c98dacSZbigniew Bodek ena_aenq_handler handlers[ENA_MAX_HANDLERS]; 41345c98dacSZbigniew Bodek ena_aenq_handler unimplemented_handler; 41445c98dacSZbigniew Bodek }; 41545c98dacSZbigniew Bodek 41645c98dacSZbigniew Bodek /*****************************************************************************/ 41745c98dacSZbigniew Bodek /*****************************************************************************/ 41845c98dacSZbigniew Bodek #if defined(__cplusplus) 41945c98dacSZbigniew Bodek extern "C" { 42045c98dacSZbigniew Bodek #endif 42145c98dacSZbigniew Bodek 42245c98dacSZbigniew Bodek /* ena_com_mmio_reg_read_request_init - Init the mmio reg read mechanism 42345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 42445c98dacSZbigniew Bodek * 42545c98dacSZbigniew Bodek * Initialize the register read mechanism. 42645c98dacSZbigniew Bodek * 42745c98dacSZbigniew Bodek * @note: This method must be the first stage in the initialization sequence. 42845c98dacSZbigniew Bodek * 42945c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 43045c98dacSZbigniew Bodek */ 43145c98dacSZbigniew Bodek int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev); 43245c98dacSZbigniew Bodek 43345c98dacSZbigniew Bodek /* ena_com_set_mmio_read_mode - Enable/disable the mmio reg read mechanism 43445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 43545c98dacSZbigniew Bodek * @readless_supported: readless mode (enable/disable) 43645c98dacSZbigniew Bodek */ 43745c98dacSZbigniew Bodek void ena_com_set_mmio_read_mode(struct ena_com_dev *ena_dev, 43845c98dacSZbigniew Bodek bool readless_supported); 43945c98dacSZbigniew Bodek 44045c98dacSZbigniew Bodek /* ena_com_mmio_reg_read_request_write_dev_addr - Write the mmio reg read return 44145c98dacSZbigniew Bodek * value physical address. 44245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 44345c98dacSZbigniew Bodek */ 44445c98dacSZbigniew Bodek void ena_com_mmio_reg_read_request_write_dev_addr(struct ena_com_dev *ena_dev); 44545c98dacSZbigniew Bodek 44645c98dacSZbigniew Bodek /* ena_com_mmio_reg_read_request_destroy - Destroy the mmio reg read mechanism 44745c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 44845c98dacSZbigniew Bodek */ 44945c98dacSZbigniew Bodek void ena_com_mmio_reg_read_request_destroy(struct ena_com_dev *ena_dev); 45045c98dacSZbigniew Bodek 45145c98dacSZbigniew Bodek /* ena_com_admin_init - Init the admin and the async queues 45245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 45345c98dacSZbigniew Bodek * @aenq_handlers: Those handlers to be called upon event. 45445c98dacSZbigniew Bodek * 45545c98dacSZbigniew Bodek * Initialize the admin submission and completion queues. 45645c98dacSZbigniew Bodek * Initialize the asynchronous events notification queues. 45745c98dacSZbigniew Bodek * 45845c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 45945c98dacSZbigniew Bodek */ 46045c98dacSZbigniew Bodek int ena_com_admin_init(struct ena_com_dev *ena_dev, 461*67ec48bbSMarcin Wojtas struct ena_aenq_handlers *aenq_handlers); 46245c98dacSZbigniew Bodek 46345c98dacSZbigniew Bodek /* ena_com_admin_destroy - Destroy the admin and the async events queues. 46445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 46545c98dacSZbigniew Bodek * 46645c98dacSZbigniew Bodek * @note: Before calling this method, the caller must validate that the device 46745c98dacSZbigniew Bodek * won't send any additional admin completions/aenq. 46845c98dacSZbigniew Bodek * To achieve that, a FLR is recommended. 46945c98dacSZbigniew Bodek */ 47045c98dacSZbigniew Bodek void ena_com_admin_destroy(struct ena_com_dev *ena_dev); 47145c98dacSZbigniew Bodek 47245c98dacSZbigniew Bodek /* ena_com_dev_reset - Perform device FLR to the device. 47345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 474a195fab0SMarcin Wojtas * @reset_reason: Specify what is the trigger for the reset in case of an error. 47545c98dacSZbigniew Bodek * 47645c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 47745c98dacSZbigniew Bodek */ 478a195fab0SMarcin Wojtas int ena_com_dev_reset(struct ena_com_dev *ena_dev, 479a195fab0SMarcin Wojtas enum ena_regs_reset_reason_types reset_reason); 48045c98dacSZbigniew Bodek 48145c98dacSZbigniew Bodek /* ena_com_create_io_queue - Create io queue. 48245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 48345c98dacSZbigniew Bodek * @ctx - create context structure 48445c98dacSZbigniew Bodek * 48545c98dacSZbigniew Bodek * Create the submission and the completion queues. 48645c98dacSZbigniew Bodek * 48745c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 48845c98dacSZbigniew Bodek */ 48945c98dacSZbigniew Bodek int ena_com_create_io_queue(struct ena_com_dev *ena_dev, 49045c98dacSZbigniew Bodek struct ena_com_create_io_ctx *ctx); 49145c98dacSZbigniew Bodek 49245c98dacSZbigniew Bodek /* ena_com_destroy_io_queue - Destroy IO queue with the queue id - qid. 49345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 49445c98dacSZbigniew Bodek * @qid - the caller virtual queue id. 49545c98dacSZbigniew Bodek */ 49645c98dacSZbigniew Bodek void ena_com_destroy_io_queue(struct ena_com_dev *ena_dev, u16 qid); 49745c98dacSZbigniew Bodek 49845c98dacSZbigniew Bodek /* ena_com_get_io_handlers - Return the io queue handlers 49945c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 50045c98dacSZbigniew Bodek * @qid - the caller virtual queue id. 50145c98dacSZbigniew Bodek * @io_sq - IO submission queue handler 50245c98dacSZbigniew Bodek * @io_cq - IO completion queue handler. 50345c98dacSZbigniew Bodek * 50445c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 50545c98dacSZbigniew Bodek */ 50645c98dacSZbigniew Bodek int ena_com_get_io_handlers(struct ena_com_dev *ena_dev, u16 qid, 50745c98dacSZbigniew Bodek struct ena_com_io_sq **io_sq, 50845c98dacSZbigniew Bodek struct ena_com_io_cq **io_cq); 50945c98dacSZbigniew Bodek 51045c98dacSZbigniew Bodek /* ena_com_admin_aenq_enable - ENAble asynchronous event notifications 51145c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 51245c98dacSZbigniew Bodek * 51345c98dacSZbigniew Bodek * After this method, aenq event can be received via AENQ. 51445c98dacSZbigniew Bodek */ 51545c98dacSZbigniew Bodek void ena_com_admin_aenq_enable(struct ena_com_dev *ena_dev); 51645c98dacSZbigniew Bodek 51745c98dacSZbigniew Bodek /* ena_com_set_admin_running_state - Set the state of the admin queue 51845c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 51945c98dacSZbigniew Bodek * 52045c98dacSZbigniew Bodek * Change the state of the admin queue (enable/disable) 52145c98dacSZbigniew Bodek */ 52245c98dacSZbigniew Bodek void ena_com_set_admin_running_state(struct ena_com_dev *ena_dev, bool state); 52345c98dacSZbigniew Bodek 52445c98dacSZbigniew Bodek /* ena_com_get_admin_running_state - Get the admin queue state 52545c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 52645c98dacSZbigniew Bodek * 52745c98dacSZbigniew Bodek * Retrieve the state of the admin queue (enable/disable) 52845c98dacSZbigniew Bodek * 52945c98dacSZbigniew Bodek * @return - current polling mode (enable/disable) 53045c98dacSZbigniew Bodek */ 53145c98dacSZbigniew Bodek bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev); 53245c98dacSZbigniew Bodek 53345c98dacSZbigniew Bodek /* ena_com_set_admin_polling_mode - Set the admin completion queue polling mode 53445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 53545c98dacSZbigniew Bodek * @polling: ENAble/Disable polling mode 53645c98dacSZbigniew Bodek * 53745c98dacSZbigniew Bodek * Set the admin completion mode. 53845c98dacSZbigniew Bodek */ 53945c98dacSZbigniew Bodek void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling); 54045c98dacSZbigniew Bodek 54145c98dacSZbigniew Bodek /* ena_com_set_admin_polling_mode - Get the admin completion queue polling mode 54245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 54345c98dacSZbigniew Bodek * 54445c98dacSZbigniew Bodek * Get the admin completion mode. 54545c98dacSZbigniew Bodek * If polling mode is on, ena_com_execute_admin_command will perform a 54645c98dacSZbigniew Bodek * polling on the admin completion queue for the commands completion, 54745c98dacSZbigniew Bodek * otherwise it will wait on wait event. 54845c98dacSZbigniew Bodek * 54945c98dacSZbigniew Bodek * @return state 55045c98dacSZbigniew Bodek */ 55145c98dacSZbigniew Bodek bool ena_com_get_ena_admin_polling_mode(struct ena_com_dev *ena_dev); 55245c98dacSZbigniew Bodek 55345c98dacSZbigniew Bodek /* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler 55445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 55545c98dacSZbigniew Bodek * 55645c98dacSZbigniew Bodek * This method go over the admin completion queue and wake up all the pending 55745c98dacSZbigniew Bodek * threads that wait on the commands wait event. 55845c98dacSZbigniew Bodek * 55945c98dacSZbigniew Bodek * @note: Should be called after MSI-X interrupt. 56045c98dacSZbigniew Bodek */ 56145c98dacSZbigniew Bodek void ena_com_admin_q_comp_intr_handler(struct ena_com_dev *ena_dev); 56245c98dacSZbigniew Bodek 56345c98dacSZbigniew Bodek /* ena_com_aenq_intr_handler - AENQ interrupt handler 56445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 56545c98dacSZbigniew Bodek * 56645c98dacSZbigniew Bodek * This method go over the async event notification queue and call the proper 56745c98dacSZbigniew Bodek * aenq handler. 56845c98dacSZbigniew Bodek */ 56945c98dacSZbigniew Bodek void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data); 57045c98dacSZbigniew Bodek 57145c98dacSZbigniew Bodek /* ena_com_abort_admin_commands - Abort all the outstanding admin commands. 57245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 57345c98dacSZbigniew Bodek * 57445c98dacSZbigniew Bodek * This method aborts all the outstanding admin commands. 57545c98dacSZbigniew Bodek * The caller should then call ena_com_wait_for_abort_completion to make sure 57645c98dacSZbigniew Bodek * all the commands were completed. 57745c98dacSZbigniew Bodek */ 57845c98dacSZbigniew Bodek void ena_com_abort_admin_commands(struct ena_com_dev *ena_dev); 57945c98dacSZbigniew Bodek 58045c98dacSZbigniew Bodek /* ena_com_wait_for_abort_completion - Wait for admin commands abort. 58145c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 58245c98dacSZbigniew Bodek * 58345c98dacSZbigniew Bodek * This method wait until all the outstanding admin commands will be completed. 58445c98dacSZbigniew Bodek */ 58545c98dacSZbigniew Bodek void ena_com_wait_for_abort_completion(struct ena_com_dev *ena_dev); 58645c98dacSZbigniew Bodek 58745c98dacSZbigniew Bodek /* ena_com_validate_version - Validate the device parameters 58845c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 58945c98dacSZbigniew Bodek * 59045c98dacSZbigniew Bodek * This method validate the device parameters are the same as the saved 59145c98dacSZbigniew Bodek * parameters in ena_dev. 59245c98dacSZbigniew Bodek * This method is useful after device reset, to validate the device mac address 59345c98dacSZbigniew Bodek * and the device offloads are the same as before the reset. 59445c98dacSZbigniew Bodek * 59545c98dacSZbigniew Bodek * @return - 0 on success negative value otherwise. 59645c98dacSZbigniew Bodek */ 59745c98dacSZbigniew Bodek int ena_com_validate_version(struct ena_com_dev *ena_dev); 59845c98dacSZbigniew Bodek 59945c98dacSZbigniew Bodek /* ena_com_get_link_params - Retrieve physical link parameters. 60045c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 60145c98dacSZbigniew Bodek * @resp: Link parameters 60245c98dacSZbigniew Bodek * 60345c98dacSZbigniew Bodek * Retrieve the physical link parameters, 60445c98dacSZbigniew Bodek * like speed, auto-negotiation and full duplex support. 60545c98dacSZbigniew Bodek * 60645c98dacSZbigniew Bodek * @return - 0 on Success negative value otherwise. 60745c98dacSZbigniew Bodek */ 60845c98dacSZbigniew Bodek int ena_com_get_link_params(struct ena_com_dev *ena_dev, 60945c98dacSZbigniew Bodek struct ena_admin_get_feat_resp *resp); 61045c98dacSZbigniew Bodek 611*67ec48bbSMarcin Wojtas /* ena_com_extra_properties_strings_init - Initialize the extra properties strings buffer. 612*67ec48bbSMarcin Wojtas * @ena_dev: ENA communication layer struct 613*67ec48bbSMarcin Wojtas * 614*67ec48bbSMarcin Wojtas * Initialize the extra properties strings buffer. 615*67ec48bbSMarcin Wojtas */ 616*67ec48bbSMarcin Wojtas int ena_com_extra_properties_strings_init(struct ena_com_dev *ena_dev); 617*67ec48bbSMarcin Wojtas 618*67ec48bbSMarcin Wojtas /* ena_com_delete_extra_properties_strings - Free the extra properties strings buffer. 619*67ec48bbSMarcin Wojtas * @ena_dev: ENA communication layer struct 620*67ec48bbSMarcin Wojtas * 621*67ec48bbSMarcin Wojtas * Free the allocated extra properties strings buffer. 622*67ec48bbSMarcin Wojtas */ 623*67ec48bbSMarcin Wojtas void ena_com_delete_extra_properties_strings(struct ena_com_dev *ena_dev); 624*67ec48bbSMarcin Wojtas 625*67ec48bbSMarcin Wojtas /* ena_com_get_extra_properties_flags - Retrieve extra properties flags. 626*67ec48bbSMarcin Wojtas * @ena_dev: ENA communication layer struct 627*67ec48bbSMarcin Wojtas * @resp: Extra properties flags. 628*67ec48bbSMarcin Wojtas * 629*67ec48bbSMarcin Wojtas * Retrieve the extra properties flags. 630*67ec48bbSMarcin Wojtas * 631*67ec48bbSMarcin Wojtas * @return - 0 on Success negative value otherwise. 632*67ec48bbSMarcin Wojtas */ 633*67ec48bbSMarcin Wojtas int ena_com_get_extra_properties_flags(struct ena_com_dev *ena_dev, 634*67ec48bbSMarcin Wojtas struct ena_admin_get_feat_resp *resp); 635*67ec48bbSMarcin Wojtas 63645c98dacSZbigniew Bodek /* ena_com_get_dma_width - Retrieve physical dma address width the device 63745c98dacSZbigniew Bodek * supports. 63845c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 63945c98dacSZbigniew Bodek * 64045c98dacSZbigniew Bodek * Retrieve the maximum physical address bits the device can handle. 64145c98dacSZbigniew Bodek * 64245c98dacSZbigniew Bodek * @return: > 0 on Success and negative value otherwise. 64345c98dacSZbigniew Bodek */ 64445c98dacSZbigniew Bodek int ena_com_get_dma_width(struct ena_com_dev *ena_dev); 64545c98dacSZbigniew Bodek 64645c98dacSZbigniew Bodek /* ena_com_set_aenq_config - Set aenq groups configurations 64745c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 64845c98dacSZbigniew Bodek * @groups flag: bit fields flags of enum ena_admin_aenq_group. 64945c98dacSZbigniew Bodek * 65045c98dacSZbigniew Bodek * Configure which aenq event group the driver would like to receive. 65145c98dacSZbigniew Bodek * 65245c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 65345c98dacSZbigniew Bodek */ 65445c98dacSZbigniew Bodek int ena_com_set_aenq_config(struct ena_com_dev *ena_dev, u32 groups_flag); 65545c98dacSZbigniew Bodek 65645c98dacSZbigniew Bodek /* ena_com_get_dev_attr_feat - Get device features 65745c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 65845c98dacSZbigniew Bodek * @get_feat_ctx: returned context that contain the get features. 65945c98dacSZbigniew Bodek * 66045c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 66145c98dacSZbigniew Bodek */ 66245c98dacSZbigniew Bodek int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev, 66345c98dacSZbigniew Bodek struct ena_com_dev_get_features_ctx *get_feat_ctx); 66445c98dacSZbigniew Bodek 66545c98dacSZbigniew Bodek /* ena_com_get_dev_basic_stats - Get device basic statistics 66645c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 66745c98dacSZbigniew Bodek * @stats: stats return value 66845c98dacSZbigniew Bodek * 66945c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 67045c98dacSZbigniew Bodek */ 67145c98dacSZbigniew Bodek int ena_com_get_dev_basic_stats(struct ena_com_dev *ena_dev, 67245c98dacSZbigniew Bodek struct ena_admin_basic_stats *stats); 67345c98dacSZbigniew Bodek 67445c98dacSZbigniew Bodek /* ena_com_set_dev_mtu - Configure the device mtu. 67545c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 67645c98dacSZbigniew Bodek * @mtu: mtu value 67745c98dacSZbigniew Bodek * 67845c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 67945c98dacSZbigniew Bodek */ 68045c98dacSZbigniew Bodek int ena_com_set_dev_mtu(struct ena_com_dev *ena_dev, int mtu); 68145c98dacSZbigniew Bodek 68245c98dacSZbigniew Bodek /* ena_com_get_offload_settings - Retrieve the device offloads capabilities 68345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 68445c98dacSZbigniew Bodek * @offlad: offload return value 68545c98dacSZbigniew Bodek * 68645c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 68745c98dacSZbigniew Bodek */ 68845c98dacSZbigniew Bodek int ena_com_get_offload_settings(struct ena_com_dev *ena_dev, 68945c98dacSZbigniew Bodek struct ena_admin_feature_offload_desc *offload); 69045c98dacSZbigniew Bodek 69145c98dacSZbigniew Bodek /* ena_com_rss_init - Init RSS 69245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 69345c98dacSZbigniew Bodek * @log_size: indirection log size 69445c98dacSZbigniew Bodek * 69545c98dacSZbigniew Bodek * Allocate RSS/RFS resources. 69645c98dacSZbigniew Bodek * The caller then can configure rss using ena_com_set_hash_function, 69745c98dacSZbigniew Bodek * ena_com_set_hash_ctrl and ena_com_indirect_table_set. 69845c98dacSZbigniew Bodek * 69945c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 70045c98dacSZbigniew Bodek */ 70145c98dacSZbigniew Bodek int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size); 70245c98dacSZbigniew Bodek 70345c98dacSZbigniew Bodek /* ena_com_rss_destroy - Destroy rss 70445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 70545c98dacSZbigniew Bodek * 70645c98dacSZbigniew Bodek * Free all the RSS/RFS resources. 70745c98dacSZbigniew Bodek */ 70845c98dacSZbigniew Bodek void ena_com_rss_destroy(struct ena_com_dev *ena_dev); 70945c98dacSZbigniew Bodek 71045c98dacSZbigniew Bodek /* ena_com_fill_hash_function - Fill RSS hash function 71145c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 71245c98dacSZbigniew Bodek * @func: The hash function (Toeplitz or crc) 71345c98dacSZbigniew Bodek * @key: Hash key (for toeplitz hash) 71445c98dacSZbigniew Bodek * @key_len: key length (max length 10 DW) 71545c98dacSZbigniew Bodek * @init_val: initial value for the hash function 71645c98dacSZbigniew Bodek * 71745c98dacSZbigniew Bodek * Fill the ena_dev resources with the desire hash function, hash key, key_len 71845c98dacSZbigniew Bodek * and key initial value (if needed by the hash function). 71945c98dacSZbigniew Bodek * To flush the key into the device the caller should call 72045c98dacSZbigniew Bodek * ena_com_set_hash_function. 72145c98dacSZbigniew Bodek * 72245c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 72345c98dacSZbigniew Bodek */ 72445c98dacSZbigniew Bodek int ena_com_fill_hash_function(struct ena_com_dev *ena_dev, 72545c98dacSZbigniew Bodek enum ena_admin_hash_functions func, 72645c98dacSZbigniew Bodek const u8 *key, u16 key_len, u32 init_val); 72745c98dacSZbigniew Bodek 72845c98dacSZbigniew Bodek /* ena_com_set_hash_function - Flush the hash function and it dependencies to 72945c98dacSZbigniew Bodek * the device. 73045c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 73145c98dacSZbigniew Bodek * 73245c98dacSZbigniew Bodek * Flush the hash function and it dependencies (key, key length and 73345c98dacSZbigniew Bodek * initial value) if needed. 73445c98dacSZbigniew Bodek * 73545c98dacSZbigniew Bodek * @note: Prior to this method the caller should call ena_com_fill_hash_function 73645c98dacSZbigniew Bodek * 73745c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 73845c98dacSZbigniew Bodek */ 73945c98dacSZbigniew Bodek int ena_com_set_hash_function(struct ena_com_dev *ena_dev); 74045c98dacSZbigniew Bodek 74145c98dacSZbigniew Bodek /* ena_com_get_hash_function - Retrieve the hash function and the hash key 74245c98dacSZbigniew Bodek * from the device. 74345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 74445c98dacSZbigniew Bodek * @func: hash function 74545c98dacSZbigniew Bodek * @key: hash key 74645c98dacSZbigniew Bodek * 74745c98dacSZbigniew Bodek * Retrieve the hash function and the hash key from the device. 74845c98dacSZbigniew Bodek * 74945c98dacSZbigniew Bodek * @note: If the caller called ena_com_fill_hash_function but didn't flash 75045c98dacSZbigniew Bodek * it to the device, the new configuration will be lost. 75145c98dacSZbigniew Bodek * 75245c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 75345c98dacSZbigniew Bodek */ 75445c98dacSZbigniew Bodek int ena_com_get_hash_function(struct ena_com_dev *ena_dev, 75545c98dacSZbigniew Bodek enum ena_admin_hash_functions *func, 75645c98dacSZbigniew Bodek u8 *key); 75745c98dacSZbigniew Bodek 75845c98dacSZbigniew Bodek /* ena_com_fill_hash_ctrl - Fill RSS hash control 75945c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct. 76045c98dacSZbigniew Bodek * @proto: The protocol to configure. 76145c98dacSZbigniew Bodek * @hash_fields: bit mask of ena_admin_flow_hash_fields 76245c98dacSZbigniew Bodek * 76345c98dacSZbigniew Bodek * Fill the ena_dev resources with the desire hash control (the ethernet 76445c98dacSZbigniew Bodek * fields that take part of the hash) for a specific protocol. 76545c98dacSZbigniew Bodek * To flush the hash control to the device, the caller should call 76645c98dacSZbigniew Bodek * ena_com_set_hash_ctrl. 76745c98dacSZbigniew Bodek * 76845c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 76945c98dacSZbigniew Bodek */ 77045c98dacSZbigniew Bodek int ena_com_fill_hash_ctrl(struct ena_com_dev *ena_dev, 77145c98dacSZbigniew Bodek enum ena_admin_flow_hash_proto proto, 77245c98dacSZbigniew Bodek u16 hash_fields); 77345c98dacSZbigniew Bodek 77445c98dacSZbigniew Bodek /* ena_com_set_hash_ctrl - Flush the hash control resources to the device. 77545c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 77645c98dacSZbigniew Bodek * 77745c98dacSZbigniew Bodek * Flush the hash control (the ethernet fields that take part of the hash) 77845c98dacSZbigniew Bodek * 77945c98dacSZbigniew Bodek * @note: Prior to this method the caller should call ena_com_fill_hash_ctrl. 78045c98dacSZbigniew Bodek * 78145c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 78245c98dacSZbigniew Bodek */ 78345c98dacSZbigniew Bodek int ena_com_set_hash_ctrl(struct ena_com_dev *ena_dev); 78445c98dacSZbigniew Bodek 78545c98dacSZbigniew Bodek /* ena_com_get_hash_ctrl - Retrieve the hash control from the device. 78645c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 78745c98dacSZbigniew Bodek * @proto: The protocol to retrieve. 78845c98dacSZbigniew Bodek * @fields: bit mask of ena_admin_flow_hash_fields. 78945c98dacSZbigniew Bodek * 79045c98dacSZbigniew Bodek * Retrieve the hash control from the device. 79145c98dacSZbigniew Bodek * 79245c98dacSZbigniew Bodek * @note, If the caller called ena_com_fill_hash_ctrl but didn't flash 79345c98dacSZbigniew Bodek * it to the device, the new configuration will be lost. 79445c98dacSZbigniew Bodek * 79545c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 79645c98dacSZbigniew Bodek */ 79745c98dacSZbigniew Bodek int ena_com_get_hash_ctrl(struct ena_com_dev *ena_dev, 79845c98dacSZbigniew Bodek enum ena_admin_flow_hash_proto proto, 79945c98dacSZbigniew Bodek u16 *fields); 80045c98dacSZbigniew Bodek 80145c98dacSZbigniew Bodek /* ena_com_set_default_hash_ctrl - Set the hash control to a default 80245c98dacSZbigniew Bodek * configuration. 80345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 80445c98dacSZbigniew Bodek * 80545c98dacSZbigniew Bodek * Fill the ena_dev resources with the default hash control configuration. 80645c98dacSZbigniew Bodek * To flush the hash control to the device, the caller should call 80745c98dacSZbigniew Bodek * ena_com_set_hash_ctrl. 80845c98dacSZbigniew Bodek * 80945c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 81045c98dacSZbigniew Bodek */ 81145c98dacSZbigniew Bodek int ena_com_set_default_hash_ctrl(struct ena_com_dev *ena_dev); 81245c98dacSZbigniew Bodek 81345c98dacSZbigniew Bodek /* ena_com_indirect_table_fill_entry - Fill a single entry in the RSS 81445c98dacSZbigniew Bodek * indirection table 81545c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct. 81645c98dacSZbigniew Bodek * @entry_idx - indirection table entry. 81745c98dacSZbigniew Bodek * @entry_value - redirection value 81845c98dacSZbigniew Bodek * 81945c98dacSZbigniew Bodek * Fill a single entry of the RSS indirection table in the ena_dev resources. 82045c98dacSZbigniew Bodek * To flush the indirection table to the device, the called should call 82145c98dacSZbigniew Bodek * ena_com_indirect_table_set. 82245c98dacSZbigniew Bodek * 82345c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 82445c98dacSZbigniew Bodek */ 82545c98dacSZbigniew Bodek int ena_com_indirect_table_fill_entry(struct ena_com_dev *ena_dev, 82645c98dacSZbigniew Bodek u16 entry_idx, u16 entry_value); 82745c98dacSZbigniew Bodek 82845c98dacSZbigniew Bodek /* ena_com_indirect_table_set - Flush the indirection table to the device. 82945c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 83045c98dacSZbigniew Bodek * 83145c98dacSZbigniew Bodek * Flush the indirection hash control to the device. 83245c98dacSZbigniew Bodek * Prior to this method the caller should call ena_com_indirect_table_fill_entry 83345c98dacSZbigniew Bodek * 83445c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 83545c98dacSZbigniew Bodek */ 83645c98dacSZbigniew Bodek int ena_com_indirect_table_set(struct ena_com_dev *ena_dev); 83745c98dacSZbigniew Bodek 83845c98dacSZbigniew Bodek /* ena_com_indirect_table_get - Retrieve the indirection table from the device. 83945c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 84045c98dacSZbigniew Bodek * @ind_tbl: indirection table 84145c98dacSZbigniew Bodek * 84245c98dacSZbigniew Bodek * Retrieve the RSS indirection table from the device. 84345c98dacSZbigniew Bodek * 84445c98dacSZbigniew Bodek * @note: If the caller called ena_com_indirect_table_fill_entry but didn't flash 84545c98dacSZbigniew Bodek * it to the device, the new configuration will be lost. 84645c98dacSZbigniew Bodek * 84745c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 84845c98dacSZbigniew Bodek */ 84945c98dacSZbigniew Bodek int ena_com_indirect_table_get(struct ena_com_dev *ena_dev, u32 *ind_tbl); 85045c98dacSZbigniew Bodek 85145c98dacSZbigniew Bodek /* ena_com_allocate_host_info - Allocate host info resources. 85245c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 85345c98dacSZbigniew Bodek * 85445c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 85545c98dacSZbigniew Bodek */ 85645c98dacSZbigniew Bodek int ena_com_allocate_host_info(struct ena_com_dev *ena_dev); 85745c98dacSZbigniew Bodek 85845c98dacSZbigniew Bodek /* ena_com_allocate_debug_area - Allocate debug area. 85945c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 86045c98dacSZbigniew Bodek * @debug_area_size - debug area size. 86145c98dacSZbigniew Bodek * 86245c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 86345c98dacSZbigniew Bodek */ 86445c98dacSZbigniew Bodek int ena_com_allocate_debug_area(struct ena_com_dev *ena_dev, 86545c98dacSZbigniew Bodek u32 debug_area_size); 86645c98dacSZbigniew Bodek 86745c98dacSZbigniew Bodek /* ena_com_delete_debug_area - Free the debug area resources. 86845c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 86945c98dacSZbigniew Bodek * 87045c98dacSZbigniew Bodek * Free the allocate debug area. 87145c98dacSZbigniew Bodek */ 87245c98dacSZbigniew Bodek void ena_com_delete_debug_area(struct ena_com_dev *ena_dev); 87345c98dacSZbigniew Bodek 87445c98dacSZbigniew Bodek /* ena_com_delete_host_info - Free the host info resources. 87545c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 87645c98dacSZbigniew Bodek * 87745c98dacSZbigniew Bodek * Free the allocate host info. 87845c98dacSZbigniew Bodek */ 87945c98dacSZbigniew Bodek void ena_com_delete_host_info(struct ena_com_dev *ena_dev); 88045c98dacSZbigniew Bodek 88145c98dacSZbigniew Bodek /* ena_com_set_host_attributes - Update the device with the host 88245c98dacSZbigniew Bodek * attributes (debug area and host info) base address. 88345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 88445c98dacSZbigniew Bodek * 88545c98dacSZbigniew Bodek * @return: 0 on Success and negative value otherwise. 88645c98dacSZbigniew Bodek */ 88745c98dacSZbigniew Bodek int ena_com_set_host_attributes(struct ena_com_dev *ena_dev); 88845c98dacSZbigniew Bodek 88945c98dacSZbigniew Bodek /* ena_com_create_io_cq - Create io completion queue. 89045c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 89145c98dacSZbigniew Bodek * @io_cq - io completion queue handler 89245c98dacSZbigniew Bodek 89345c98dacSZbigniew Bodek * Create IO completion queue. 89445c98dacSZbigniew Bodek * 89545c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 89645c98dacSZbigniew Bodek */ 89745c98dacSZbigniew Bodek int ena_com_create_io_cq(struct ena_com_dev *ena_dev, 89845c98dacSZbigniew Bodek struct ena_com_io_cq *io_cq); 89945c98dacSZbigniew Bodek 90045c98dacSZbigniew Bodek /* ena_com_destroy_io_cq - Destroy io completion queue. 90145c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 90245c98dacSZbigniew Bodek * @io_cq - io completion queue handler 90345c98dacSZbigniew Bodek 90445c98dacSZbigniew Bodek * Destroy IO completion queue. 90545c98dacSZbigniew Bodek * 90645c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 90745c98dacSZbigniew Bodek */ 90845c98dacSZbigniew Bodek int ena_com_destroy_io_cq(struct ena_com_dev *ena_dev, 90945c98dacSZbigniew Bodek struct ena_com_io_cq *io_cq); 91045c98dacSZbigniew Bodek 91145c98dacSZbigniew Bodek /* ena_com_execute_admin_command - Execute admin command 91245c98dacSZbigniew Bodek * @admin_queue: admin queue. 91345c98dacSZbigniew Bodek * @cmd: the admin command to execute. 91445c98dacSZbigniew Bodek * @cmd_size: the command size. 91545c98dacSZbigniew Bodek * @cmd_completion: command completion return value. 91645c98dacSZbigniew Bodek * @cmd_comp_size: command completion size. 91745c98dacSZbigniew Bodek 91845c98dacSZbigniew Bodek * Submit an admin command and then wait until the device will return a 91945c98dacSZbigniew Bodek * completion. 92045c98dacSZbigniew Bodek * The completion will be copyed into cmd_comp. 92145c98dacSZbigniew Bodek * 92245c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 92345c98dacSZbigniew Bodek */ 92445c98dacSZbigniew Bodek int ena_com_execute_admin_command(struct ena_com_admin_queue *admin_queue, 92545c98dacSZbigniew Bodek struct ena_admin_aq_entry *cmd, 92645c98dacSZbigniew Bodek size_t cmd_size, 92745c98dacSZbigniew Bodek struct ena_admin_acq_entry *cmd_comp, 92845c98dacSZbigniew Bodek size_t cmd_comp_size); 92945c98dacSZbigniew Bodek 93045c98dacSZbigniew Bodek /* ena_com_init_interrupt_moderation - Init interrupt moderation 93145c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 93245c98dacSZbigniew Bodek * 93345c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 93445c98dacSZbigniew Bodek */ 93545c98dacSZbigniew Bodek int ena_com_init_interrupt_moderation(struct ena_com_dev *ena_dev); 93645c98dacSZbigniew Bodek 93745c98dacSZbigniew Bodek /* ena_com_destroy_interrupt_moderation - Destroy interrupt moderation resources 93845c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 93945c98dacSZbigniew Bodek */ 94045c98dacSZbigniew Bodek void ena_com_destroy_interrupt_moderation(struct ena_com_dev *ena_dev); 94145c98dacSZbigniew Bodek 94245c98dacSZbigniew Bodek /* ena_com_interrupt_moderation_supported - Return if interrupt moderation 94345c98dacSZbigniew Bodek * capability is supported by the device. 94445c98dacSZbigniew Bodek * 94545c98dacSZbigniew Bodek * @return - supported or not. 94645c98dacSZbigniew Bodek */ 94745c98dacSZbigniew Bodek bool ena_com_interrupt_moderation_supported(struct ena_com_dev *ena_dev); 94845c98dacSZbigniew Bodek 94945c98dacSZbigniew Bodek /* ena_com_config_default_interrupt_moderation_table - Restore the interrupt 95045c98dacSZbigniew Bodek * moderation table back to the default parameters. 95145c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 95245c98dacSZbigniew Bodek */ 95345c98dacSZbigniew Bodek void ena_com_config_default_interrupt_moderation_table(struct ena_com_dev *ena_dev); 95445c98dacSZbigniew Bodek 95545c98dacSZbigniew Bodek /* ena_com_update_nonadaptive_moderation_interval_tx - Update the 95645c98dacSZbigniew Bodek * non-adaptive interval in Tx direction. 95745c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 95845c98dacSZbigniew Bodek * @tx_coalesce_usecs: Interval in usec. 95945c98dacSZbigniew Bodek * 96045c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 96145c98dacSZbigniew Bodek */ 96245c98dacSZbigniew Bodek int ena_com_update_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev, 96345c98dacSZbigniew Bodek u32 tx_coalesce_usecs); 96445c98dacSZbigniew Bodek 96545c98dacSZbigniew Bodek /* ena_com_update_nonadaptive_moderation_interval_rx - Update the 96645c98dacSZbigniew Bodek * non-adaptive interval in Rx direction. 96745c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 96845c98dacSZbigniew Bodek * @rx_coalesce_usecs: Interval in usec. 96945c98dacSZbigniew Bodek * 97045c98dacSZbigniew Bodek * @return - 0 on success, negative value on failure. 97145c98dacSZbigniew Bodek */ 97245c98dacSZbigniew Bodek int ena_com_update_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev, 97345c98dacSZbigniew Bodek u32 rx_coalesce_usecs); 97445c98dacSZbigniew Bodek 97545c98dacSZbigniew Bodek /* ena_com_get_nonadaptive_moderation_interval_tx - Retrieve the 97645c98dacSZbigniew Bodek * non-adaptive interval in Tx direction. 97745c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 97845c98dacSZbigniew Bodek * 97945c98dacSZbigniew Bodek * @return - interval in usec 98045c98dacSZbigniew Bodek */ 98145c98dacSZbigniew Bodek unsigned int ena_com_get_nonadaptive_moderation_interval_tx(struct ena_com_dev *ena_dev); 98245c98dacSZbigniew Bodek 98345c98dacSZbigniew Bodek /* ena_com_get_nonadaptive_moderation_interval_rx - Retrieve the 98445c98dacSZbigniew Bodek * non-adaptive interval in Rx direction. 98545c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 98645c98dacSZbigniew Bodek * 98745c98dacSZbigniew Bodek * @return - interval in usec 98845c98dacSZbigniew Bodek */ 98945c98dacSZbigniew Bodek unsigned int ena_com_get_nonadaptive_moderation_interval_rx(struct ena_com_dev *ena_dev); 99045c98dacSZbigniew Bodek 99145c98dacSZbigniew Bodek /* ena_com_init_intr_moderation_entry - Update a single entry in the interrupt 99245c98dacSZbigniew Bodek * moderation table. 99345c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 99445c98dacSZbigniew Bodek * @level: Interrupt moderation table level 99545c98dacSZbigniew Bodek * @entry: Entry value 99645c98dacSZbigniew Bodek * 99745c98dacSZbigniew Bodek * Update a single entry in the interrupt moderation table. 99845c98dacSZbigniew Bodek */ 99945c98dacSZbigniew Bodek void ena_com_init_intr_moderation_entry(struct ena_com_dev *ena_dev, 100045c98dacSZbigniew Bodek enum ena_intr_moder_level level, 100145c98dacSZbigniew Bodek struct ena_intr_moder_entry *entry); 100245c98dacSZbigniew Bodek 100345c98dacSZbigniew Bodek /* ena_com_get_intr_moderation_entry - Init ena_intr_moder_entry. 100445c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 100545c98dacSZbigniew Bodek * @level: Interrupt moderation table level 100645c98dacSZbigniew Bodek * @entry: Entry to fill. 100745c98dacSZbigniew Bodek * 100845c98dacSZbigniew Bodek * Initialize the entry according to the adaptive interrupt moderation table. 100945c98dacSZbigniew Bodek */ 101045c98dacSZbigniew Bodek void ena_com_get_intr_moderation_entry(struct ena_com_dev *ena_dev, 101145c98dacSZbigniew Bodek enum ena_intr_moder_level level, 101245c98dacSZbigniew Bodek struct ena_intr_moder_entry *entry); 101345c98dacSZbigniew Bodek 1014a195fab0SMarcin Wojtas /* ena_com_config_dev_mode - Configure the placement policy of the device. 1015a195fab0SMarcin Wojtas * @ena_dev: ENA communication layer struct 1016*67ec48bbSMarcin Wojtas * @llq_features: LLQ feature descriptor, retrieve via 1017*67ec48bbSMarcin Wojtas * ena_com_get_dev_attr_feat. 1018*67ec48bbSMarcin Wojtas * @ena_llq_config: The default driver LLQ parameters configurations 1019a195fab0SMarcin Wojtas */ 1020a195fab0SMarcin Wojtas int ena_com_config_dev_mode(struct ena_com_dev *ena_dev, 1021*67ec48bbSMarcin Wojtas struct ena_admin_feature_llq_desc *llq_features, 1022*67ec48bbSMarcin Wojtas struct ena_llq_configurations *llq_default_config); 1023a195fab0SMarcin Wojtas 102445c98dacSZbigniew Bodek static inline bool ena_com_get_adaptive_moderation_enabled(struct ena_com_dev *ena_dev) 102545c98dacSZbigniew Bodek { 102645c98dacSZbigniew Bodek return ena_dev->adaptive_coalescing; 102745c98dacSZbigniew Bodek } 102845c98dacSZbigniew Bodek 102945c98dacSZbigniew Bodek static inline void ena_com_enable_adaptive_moderation(struct ena_com_dev *ena_dev) 103045c98dacSZbigniew Bodek { 103145c98dacSZbigniew Bodek ena_dev->adaptive_coalescing = true; 103245c98dacSZbigniew Bodek } 103345c98dacSZbigniew Bodek 103445c98dacSZbigniew Bodek static inline void ena_com_disable_adaptive_moderation(struct ena_com_dev *ena_dev) 103545c98dacSZbigniew Bodek { 103645c98dacSZbigniew Bodek ena_dev->adaptive_coalescing = false; 103745c98dacSZbigniew Bodek } 103845c98dacSZbigniew Bodek 103945c98dacSZbigniew Bodek /* ena_com_calculate_interrupt_delay - Calculate new interrupt delay 104045c98dacSZbigniew Bodek * @ena_dev: ENA communication layer struct 104145c98dacSZbigniew Bodek * @pkts: Number of packets since the last update 104245c98dacSZbigniew Bodek * @bytes: Number of bytes received since the last update. 104345c98dacSZbigniew Bodek * @smoothed_interval: Returned interval 104445c98dacSZbigniew Bodek * @moder_tbl_idx: Current table level as input update new level as return 104545c98dacSZbigniew Bodek * value. 104645c98dacSZbigniew Bodek */ 104745c98dacSZbigniew Bodek static inline void ena_com_calculate_interrupt_delay(struct ena_com_dev *ena_dev, 104845c98dacSZbigniew Bodek unsigned int pkts, 104945c98dacSZbigniew Bodek unsigned int bytes, 105045c98dacSZbigniew Bodek unsigned int *smoothed_interval, 105145c98dacSZbigniew Bodek unsigned int *moder_tbl_idx) 105245c98dacSZbigniew Bodek { 105345c98dacSZbigniew Bodek enum ena_intr_moder_level curr_moder_idx, new_moder_idx; 105445c98dacSZbigniew Bodek struct ena_intr_moder_entry *curr_moder_entry; 105545c98dacSZbigniew Bodek struct ena_intr_moder_entry *pred_moder_entry; 105645c98dacSZbigniew Bodek struct ena_intr_moder_entry *new_moder_entry; 105745c98dacSZbigniew Bodek struct ena_intr_moder_entry *intr_moder_tbl = ena_dev->intr_moder_tbl; 105845c98dacSZbigniew Bodek unsigned int interval; 105945c98dacSZbigniew Bodek 106045c98dacSZbigniew Bodek /* We apply adaptive moderation on Rx path only. 106145c98dacSZbigniew Bodek * Tx uses static interrupt moderation. 106245c98dacSZbigniew Bodek */ 106345c98dacSZbigniew Bodek if (!pkts || !bytes) 106445c98dacSZbigniew Bodek /* Tx interrupt, or spurious interrupt, 106545c98dacSZbigniew Bodek * in both cases we just use same delay values 106645c98dacSZbigniew Bodek */ 106745c98dacSZbigniew Bodek return; 106845c98dacSZbigniew Bodek 106945c98dacSZbigniew Bodek curr_moder_idx = (enum ena_intr_moder_level)(*moder_tbl_idx); 107045c98dacSZbigniew Bodek if (unlikely(curr_moder_idx >= ENA_INTR_MAX_NUM_OF_LEVELS)) { 107145c98dacSZbigniew Bodek ena_trc_err("Wrong moderation index %u\n", curr_moder_idx); 107245c98dacSZbigniew Bodek return; 107345c98dacSZbigniew Bodek } 107445c98dacSZbigniew Bodek 107545c98dacSZbigniew Bodek curr_moder_entry = &intr_moder_tbl[curr_moder_idx]; 107645c98dacSZbigniew Bodek new_moder_idx = curr_moder_idx; 107745c98dacSZbigniew Bodek 107845c98dacSZbigniew Bodek if (curr_moder_idx == ENA_INTR_MODER_LOWEST) { 107945c98dacSZbigniew Bodek if ((pkts > curr_moder_entry->pkts_per_interval) || 108045c98dacSZbigniew Bodek (bytes > curr_moder_entry->bytes_per_interval)) 108145c98dacSZbigniew Bodek new_moder_idx = 108245c98dacSZbigniew Bodek (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE); 108345c98dacSZbigniew Bodek } else { 108445c98dacSZbigniew Bodek pred_moder_entry = &intr_moder_tbl[curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE]; 108545c98dacSZbigniew Bodek 108645c98dacSZbigniew Bodek if ((pkts <= pred_moder_entry->pkts_per_interval) || 108745c98dacSZbigniew Bodek (bytes <= pred_moder_entry->bytes_per_interval)) 108845c98dacSZbigniew Bodek new_moder_idx = 108945c98dacSZbigniew Bodek (enum ena_intr_moder_level)(curr_moder_idx - ENA_INTR_MODER_LEVEL_STRIDE); 109045c98dacSZbigniew Bodek else if ((pkts > curr_moder_entry->pkts_per_interval) || 109145c98dacSZbigniew Bodek (bytes > curr_moder_entry->bytes_per_interval)) { 109245c98dacSZbigniew Bodek if (curr_moder_idx != ENA_INTR_MODER_HIGHEST) 109345c98dacSZbigniew Bodek new_moder_idx = 109445c98dacSZbigniew Bodek (enum ena_intr_moder_level)(curr_moder_idx + ENA_INTR_MODER_LEVEL_STRIDE); 109545c98dacSZbigniew Bodek } 109645c98dacSZbigniew Bodek } 109745c98dacSZbigniew Bodek new_moder_entry = &intr_moder_tbl[new_moder_idx]; 109845c98dacSZbigniew Bodek 109945c98dacSZbigniew Bodek interval = new_moder_entry->intr_moder_interval; 110045c98dacSZbigniew Bodek *smoothed_interval = ( 110145c98dacSZbigniew Bodek (interval * ENA_INTR_DELAY_NEW_VALUE_WEIGHT + 110245c98dacSZbigniew Bodek ENA_INTR_DELAY_OLD_VALUE_WEIGHT * (*smoothed_interval)) + 5) / 110345c98dacSZbigniew Bodek 10; 110445c98dacSZbigniew Bodek 110545c98dacSZbigniew Bodek *moder_tbl_idx = new_moder_idx; 110645c98dacSZbigniew Bodek } 110745c98dacSZbigniew Bodek 110845c98dacSZbigniew Bodek /* ena_com_update_intr_reg - Prepare interrupt register 110945c98dacSZbigniew Bodek * @intr_reg: interrupt register to update. 111045c98dacSZbigniew Bodek * @rx_delay_interval: Rx interval in usecs 111145c98dacSZbigniew Bodek * @tx_delay_interval: Tx interval in usecs 111245c98dacSZbigniew Bodek * @unmask: unask enable/disable 111345c98dacSZbigniew Bodek * 111445c98dacSZbigniew Bodek * Prepare interrupt update register with the supplied parameters. 111545c98dacSZbigniew Bodek */ 111645c98dacSZbigniew Bodek static inline void ena_com_update_intr_reg(struct ena_eth_io_intr_reg *intr_reg, 111745c98dacSZbigniew Bodek u32 rx_delay_interval, 111845c98dacSZbigniew Bodek u32 tx_delay_interval, 111945c98dacSZbigniew Bodek bool unmask) 112045c98dacSZbigniew Bodek { 112145c98dacSZbigniew Bodek intr_reg->intr_control = 0; 112245c98dacSZbigniew Bodek intr_reg->intr_control |= rx_delay_interval & 112345c98dacSZbigniew Bodek ENA_ETH_IO_INTR_REG_RX_INTR_DELAY_MASK; 112445c98dacSZbigniew Bodek 112545c98dacSZbigniew Bodek intr_reg->intr_control |= 112645c98dacSZbigniew Bodek (tx_delay_interval << ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_SHIFT) 112745c98dacSZbigniew Bodek & ENA_ETH_IO_INTR_REG_TX_INTR_DELAY_MASK; 112845c98dacSZbigniew Bodek 112945c98dacSZbigniew Bodek if (unmask) 113045c98dacSZbigniew Bodek intr_reg->intr_control |= ENA_ETH_IO_INTR_REG_INTR_UNMASK_MASK; 113145c98dacSZbigniew Bodek } 113245c98dacSZbigniew Bodek 1133a195fab0SMarcin Wojtas static inline u8 *ena_com_get_next_bounce_buffer(struct ena_com_io_bounce_buffer_control *bounce_buf_ctrl) 1134a195fab0SMarcin Wojtas { 1135a195fab0SMarcin Wojtas u16 size, buffers_num; 1136a195fab0SMarcin Wojtas u8 *buf; 1137a195fab0SMarcin Wojtas 1138a195fab0SMarcin Wojtas size = bounce_buf_ctrl->buffer_size; 1139a195fab0SMarcin Wojtas buffers_num = bounce_buf_ctrl->buffers_num; 1140a195fab0SMarcin Wojtas 1141a195fab0SMarcin Wojtas buf = bounce_buf_ctrl->base_buffer + 1142a195fab0SMarcin Wojtas (bounce_buf_ctrl->next_to_use++ & (buffers_num - 1)) * size; 1143a195fab0SMarcin Wojtas 1144*67ec48bbSMarcin Wojtas prefetchw(bounce_buf_ctrl->base_buffer + 1145a195fab0SMarcin Wojtas (bounce_buf_ctrl->next_to_use & (buffers_num - 1)) * size); 1146a195fab0SMarcin Wojtas 1147a195fab0SMarcin Wojtas return buf; 1148a195fab0SMarcin Wojtas } 1149a195fab0SMarcin Wojtas 1150a195fab0SMarcin Wojtas #ifdef ENA_EXTENDED_STATS 1151a195fab0SMarcin Wojtas int ena_com_get_dev_extended_stats(struct ena_com_dev *ena_dev, char *buff, 1152a195fab0SMarcin Wojtas u32 len); 1153a195fab0SMarcin Wojtas 1154a195fab0SMarcin Wojtas int ena_com_extended_stats_set_func_queue(struct ena_com_dev *ena_dev, 1155a195fab0SMarcin Wojtas u32 funct_queue); 1156a195fab0SMarcin Wojtas #endif 115745c98dacSZbigniew Bodek #if defined(__cplusplus) 115845c98dacSZbigniew Bodek } 115945c98dacSZbigniew Bodek #endif /* __cplusplus */ 116045c98dacSZbigniew Bodek #endif /* !(ENA_COM) */ 1161