565 lines
24 KiB
C
565 lines
24 KiB
C
/*
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* Copyright (c) 2017-2018 Cavium, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __ETH_COMMON__
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#define __ETH_COMMON__
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/********************/
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/* ETH FW CONSTANTS */
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/********************/
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/* FP HSI version. FP HSI is compatible if (fwVer.major == drvVer.major && fwVer.minor >= drvVer.minor) */
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#define ETH_HSI_VER_MAJOR 3 /* ETH FP HSI Major version */
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#define ETH_HSI_VER_MINOR 10 /* ETH FP HSI Minor version */
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#define ETH_HSI_VER_NO_PKT_LEN_TUNN 5 /* Alias for 8.7.x.x/8.8.x.x ETH FP HSI MINOR version. In this version driver is not required to set pkt_len field in eth_tx_1st_bd struct, and tunneling offload is not supported. */
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#define ETH_CACHE_LINE_SIZE 64
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#define ETH_RX_CQE_GAP 32
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#define ETH_MAX_RAMROD_PER_CON 8
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#define ETH_TX_BD_PAGE_SIZE_BYTES 4096
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#define ETH_RX_BD_PAGE_SIZE_BYTES 4096
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#define ETH_RX_CQE_PAGE_SIZE_BYTES 4096
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#define ETH_RX_NUM_NEXT_PAGE_BDS 2
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/* Limitation for Tunneled LSO Packets on the offset (in bytes) of the inner IP header (relevant to LSO for tunneled packet): */
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#define ETH_MAX_TUNN_LSO_INNER_IPV4_OFFSET 253 /* Offset is limited to 253 bytes (inclusive). */
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#define ETH_MAX_TUNN_LSO_INNER_IPV6_OFFSET 251 /* Offset is limited to 251 bytes (inclusive). */
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#define ETH_TX_MIN_BDS_PER_NON_LSO_PKT 1
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#define ETH_TX_MAX_BDS_PER_NON_LSO_PACKET 18
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#define ETH_TX_MAX_BDS_PER_LSO_PACKET 255
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#define ETH_TX_MAX_LSO_HDR_NBD 4
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#define ETH_TX_MIN_BDS_PER_LSO_PKT 3
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#define ETH_TX_MIN_BDS_PER_TUNN_IPV6_WITH_EXT_PKT 3
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#define ETH_TX_MIN_BDS_PER_IPV6_WITH_EXT_PKT 2
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#define ETH_TX_MIN_BDS_PER_PKT_W_LOOPBACK_MODE 2
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#define ETH_TX_MAX_NON_LSO_PKT_LEN (9700 - (4 + 4 + 12 + 8)) /* (QM_REG_TASKBYTECRDCOST_0, QM_VOQ_BYTE_CRD_TASK_COST) - (VLAN-TAG + CRC + IPG + PREAMBLE) */
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#define ETH_TX_MAX_LSO_HDR_BYTES 510
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#define ETH_TX_LSO_WINDOW_BDS_NUM (18 - 1) /* Number of BDs to consider for LSO sliding window restriction is (ETH_TX_LSO_WINDOW_BDS_NUM - hdr_nbd) */
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#define ETH_TX_LSO_WINDOW_MIN_LEN 9700 /* Minimum data length (in bytes) in LSO sliding window */
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#define ETH_TX_MAX_LSO_PAYLOAD_LEN 0xFE000 /* Maximum LSO packet TCP payload length (in bytes) */
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#define ETH_TX_NUM_SAME_AS_LAST_ENTRIES 320 /* Number of same-as-last resources in tx switching */
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#define ETH_TX_INACTIVE_SAME_AS_LAST 0xFFFF /* Value for a connection for which same as last feature is disabled */
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#define ETH_NUM_STATISTIC_COUNTERS MAX_NUM_VPORTS /* Maximum number of statistics counters */
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#define ETH_NUM_STATISTIC_COUNTERS_DOUBLE_VF_ZONE (ETH_NUM_STATISTIC_COUNTERS - MAX_NUM_VFS/2) /* Maximum number of statistics counters when doubled VF zone used */
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#define ETH_NUM_STATISTIC_COUNTERS_QUAD_VF_ZONE (ETH_NUM_STATISTIC_COUNTERS - 3*MAX_NUM_VFS/4) /* Maximum number of statistics counters when quad VF zone used */
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#define ETH_RX_MAX_BUFF_PER_PKT 5 /* Maximum number of buffers, used for RX packet placement */
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#define ETH_RX_BD_THRESHOLD 12 /* Minimum number of free BDs in RX ring, that guarantee receiving of at least one RX packet. */
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/* num of MAC/VLAN filters */
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#define ETH_NUM_MAC_FILTERS 512
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#define ETH_NUM_VLAN_FILTERS 512
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/* approx. multicast constants */
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#define ETH_MULTICAST_BIN_FROM_MAC_SEED 0 /* CRC seed for multicast bin calculation */
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#define ETH_MULTICAST_MAC_BINS 256
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#define ETH_MULTICAST_MAC_BINS_IN_REGS (ETH_MULTICAST_MAC_BINS / 32)
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/* ethernet vport update constants */
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#define ETH_FILTER_RULES_COUNT 10
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#define ETH_RSS_IND_TABLE_ENTRIES_NUM 128 /* number of RSS indirection table entries, per Vport) */
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#define ETH_RSS_KEY_SIZE_REGS 10 /* Length of RSS key (in regs) */
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#define ETH_RSS_ENGINE_NUM_K2 207 /* number of available RSS engines in K2 */
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#define ETH_RSS_ENGINE_NUM_BB 127 /* number of available RSS engines in BB */
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/* TPA constants */
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#define ETH_TPA_MAX_AGGS_NUM 64 /* Maximum number of open TPA aggregations */
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#define ETH_TPA_CQE_START_LEN_LIST_SIZE ETH_RX_MAX_BUFF_PER_PKT /* Maximum number of additional buffers, reported by TPA-start CQE */
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#define ETH_TPA_CQE_CONT_LEN_LIST_SIZE 6 /* Maximum number of buffers, reported by TPA-continue CQE */
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#define ETH_TPA_CQE_END_LEN_LIST_SIZE 4 /* Maximum number of buffers, reported by TPA-end CQE */
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/* Control frame check constants */
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#define ETH_CTL_FRAME_ETH_TYPE_NUM 4 /* Number of etherType values configured by the driver for control frame check */
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/* GFS constants */
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#define ETH_GFT_TRASHCAN_VPORT 0x1FF /* GFT drop flow vport number */
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/*
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* Destination port mode
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*/
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enum dest_port_mode
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{
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DEST_PORT_PHY /* Send to physical port. */,
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DEST_PORT_LOOPBACK /* Send to loopback port. */,
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DEST_PORT_PHY_LOOPBACK /* Send to physical and loopback port. */,
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DEST_PORT_DROP /* Drop the packet in PBF. */,
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MAX_DEST_PORT_MODE
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};
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/*
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* Ethernet address type
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*/
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enum eth_addr_type
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{
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BROADCAST_ADDRESS,
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MULTICAST_ADDRESS,
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UNICAST_ADDRESS,
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UNKNOWN_ADDRESS,
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MAX_ETH_ADDR_TYPE
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};
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struct eth_tx_1st_bd_flags
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{
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u8 bitfields;
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#define ETH_TX_1ST_BD_FLAGS_START_BD_MASK 0x1 /* Set to 1 in the first BD. (for debug) */
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#define ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT 0
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#define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_MASK 0x1 /* Do not allow additional VLAN manipulations on this packet. */
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#define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_SHIFT 1
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#define ETH_TX_1ST_BD_FLAGS_IP_CSUM_MASK 0x1 /* Recalculate IP checksum. For tunneled packet - relevant to inner header. */
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#define ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT 2
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#define ETH_TX_1ST_BD_FLAGS_L4_CSUM_MASK 0x1 /* Recalculate TCP/UDP checksum. For tunneled packet - relevant to inner header. */
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#define ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT 3
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#define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_MASK 0x1 /* If set, insert VLAN tag from vlan field to the packet. For tunneled packet - relevant to outer header. */
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#define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT 4
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#define ETH_TX_1ST_BD_FLAGS_LSO_MASK 0x1 /* If set, this is an LSO packet. Note: For Tunneled LSO packets, the offset of the inner IPV4 (and IPV6) header is limited to 253 (and 251 respectively) bytes, inclusive. */
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#define ETH_TX_1ST_BD_FLAGS_LSO_SHIFT 5
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#define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_MASK 0x1 /* Recalculate Tunnel IP Checksum (if Tunnel IP Header is IPv4) */
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#define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT 6
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#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK 0x1 /* Recalculate Tunnel UDP/GRE Checksum (Depending on Tunnel Type) */
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#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT 7
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};
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/*
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* The parsing information data for the first tx bd of a given packet.
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*/
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struct eth_tx_data_1st_bd
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{
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__le16 vlan /* VLAN tag to insert to packet (if enabled by vlan_insertion flag). */;
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u8 nbds /* Number of BDs in packet. Should be at least 1 in non-LSO packet and at least 3 in LSO (or Tunnel with IPv6+ext) packet. */;
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struct eth_tx_1st_bd_flags bd_flags;
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__le16 bitfields;
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#define ETH_TX_DATA_1ST_BD_TUNN_FLAG_MASK 0x1 /* Indicates a tunneled packet. Must be set for encapsulated packet. */
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#define ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT 0
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#define ETH_TX_DATA_1ST_BD_RESERVED0_MASK 0x1
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#define ETH_TX_DATA_1ST_BD_RESERVED0_SHIFT 1
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#define ETH_TX_DATA_1ST_BD_PKT_LEN_MASK 0x3FFF /* Total packet length - must be filled for non-LSO packets. */
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#define ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT 2
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};
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/*
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* The parsing information data for the second tx bd of a given packet.
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*/
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struct eth_tx_data_2nd_bd
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{
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__le16 tunn_ip_size /* For tunnel with IPv6+ext - Tunnel header IP datagram length (in BYTEs) */;
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__le16 bitfields1;
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#define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_MASK 0xF /* For Tunnel header with IPv6 ext. - Inner L2 Header Size (in 2-byte WORDs) */
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#define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_SHIFT 0
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#define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_MASK 0x3 /* For Tunnel header with IPv6 ext. - Inner L2 Header MAC DA Type (use enum eth_addr_type) */
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#define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_SHIFT 4
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#define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_MASK 0x3 /* Destination port mode. (use enum dest_port_mode) */
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#define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_SHIFT 6
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#define ETH_TX_DATA_2ND_BD_START_BD_MASK 0x1 /* Should be 0 in all the BDs, except the first one. (for debug) */
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#define ETH_TX_DATA_2ND_BD_START_BD_SHIFT 8
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#define ETH_TX_DATA_2ND_BD_TUNN_TYPE_MASK 0x3 /* For Tunnel header with IPv6 ext. - Tunnel Type (use enum eth_tx_tunn_type) */
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#define ETH_TX_DATA_2ND_BD_TUNN_TYPE_SHIFT 9
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#define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_MASK 0x1 /* For LSO / Tunnel header with IPv6+ext - Set if inner header is IPv6 */
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#define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_SHIFT 11
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#define ETH_TX_DATA_2ND_BD_IPV6_EXT_MASK 0x1 /* In tunneling mode - Set to 1 when the Inner header is IPv6 with extension. Otherwise set to 1 if the header is IPv6 with extension. */
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#define ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT 12
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#define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_MASK 0x1 /* Set to 1 if Tunnel (outer = encapsulating) header has IPv6 ext. (Note: 3rd BD is required, hence EDPM does not support Tunnel [outer] header with Ipv6Ext) */
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#define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_SHIFT 13
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#define ETH_TX_DATA_2ND_BD_L4_UDP_MASK 0x1 /* Set if (inner) L4 protocol is UDP. (Required when IPv6+ext (or tunnel with inner or outer Ipv6+ext) and l4_csum is set) */
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#define ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT 14
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#define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_MASK 0x1 /* The pseudo header checksum type in the L4 checksum field. Required when IPv6+ext and l4_csum is set. (use enum eth_l4_pseudo_checksum_mode) */
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#define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT 15
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__le16 bitfields2;
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#define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK 0x1FFF /* For inner/outer header IPv6+ext - (inner) L4 header offset (in 2-byte WORDs). For regular packet - offset from the beginning of the packet. For tunneled packet - offset from the beginning of the inner header */
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#define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT 0
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#define ETH_TX_DATA_2ND_BD_RESERVED0_MASK 0x7
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#define ETH_TX_DATA_2ND_BD_RESERVED0_SHIFT 13
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};
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/*
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* Firmware data for L2-EDPM packet.
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*/
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struct eth_edpm_fw_data
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{
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struct eth_tx_data_1st_bd data_1st_bd /* Parsing information data from the 1st BD. */;
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struct eth_tx_data_2nd_bd data_2nd_bd /* Parsing information data from the 2nd BD. */;
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__le32 reserved;
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};
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/*
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* tunneling parsing flags
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*/
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struct eth_tunnel_parsing_flags
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{
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u8 flags;
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#define ETH_TUNNEL_PARSING_FLAGS_TYPE_MASK 0x3 /* 0 - no tunneling, 1 - GENEVE, 2 - GRE, 3 - VXLAN (use enum eth_rx_tunn_type) */
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#define ETH_TUNNEL_PARSING_FLAGS_TYPE_SHIFT 0
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#define ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_MASK 0x1 /* If it s not an encapsulated packet then put 0x0. If it s an encapsulated packet but the tenant-id doesn t exist then put 0x0. Else put 0x1 */
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#define ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_SHIFT 2
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#define ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_MASK 0x3 /* Type of the next header above the tunneling: 0 - unknown, 1 - L2, 2 - Ipv4, 3 - IPv6 (use enum tunnel_next_protocol) */
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#define ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_SHIFT 3
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#define ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_MASK 0x1 /* The result of comparing the DA-ip of the tunnel header. */
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#define ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_SHIFT 5
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#define ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_MASK 0x1
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#define ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_SHIFT 6
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#define ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_MASK 0x1
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#define ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_SHIFT 7
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};
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/*
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* PMD flow control bits
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*/
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struct eth_pmd_flow_flags
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{
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u8 flags;
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#define ETH_PMD_FLOW_FLAGS_VALID_MASK 0x1 /* CQE valid bit */
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#define ETH_PMD_FLOW_FLAGS_VALID_SHIFT 0
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#define ETH_PMD_FLOW_FLAGS_TOGGLE_MASK 0x1 /* CQE ring toggle bit */
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#define ETH_PMD_FLOW_FLAGS_TOGGLE_SHIFT 1
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#define ETH_PMD_FLOW_FLAGS_RESERVED_MASK 0x3F
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#define ETH_PMD_FLOW_FLAGS_RESERVED_SHIFT 2
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};
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/*
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* Regular ETH Rx FP CQE.
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*/
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struct eth_fast_path_rx_reg_cqe
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{
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u8 type /* CQE type (use enum eth_rx_cqe_type) */;
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u8 bitfields;
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#define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_MASK 0x7 /* Type of calculated RSS hash (use enum rss_hash_type) */
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#define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_SHIFT 0
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#define ETH_FAST_PATH_RX_REG_CQE_TC_MASK 0xF /* Traffic Class */
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#define ETH_FAST_PATH_RX_REG_CQE_TC_SHIFT 3
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#define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_MASK 0x1
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#define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_SHIFT 7
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__le16 pkt_len /* Total packet length (from the parser) */;
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struct parsing_and_err_flags pars_flags /* Parsing and error flags from the parser */;
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__le16 vlan_tag /* 802.1q VLAN tag */;
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__le32 rss_hash /* RSS hash result */;
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__le16 len_on_first_bd /* Number of bytes placed on first BD */;
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u8 placement_offset /* Offset of placement from BD start */;
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struct eth_tunnel_parsing_flags tunnel_pars_flags /* Tunnel Parsing Flags */;
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u8 bd_num /* Number of BDs, used for packet */;
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u8 reserved;
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__le16 flow_id /* aRFS flow ID. */;
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u8 reserved1[11];
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struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
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};
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/*
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* TPA-continue ETH Rx FP CQE.
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*/
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struct eth_fast_path_rx_tpa_cont_cqe
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{
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u8 type /* CQE type (use enum eth_rx_cqe_type) */;
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u8 tpa_agg_index /* TPA aggregation index */;
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__le16 len_list[ETH_TPA_CQE_CONT_LEN_LIST_SIZE] /* List of the segment sizes */;
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u8 reserved;
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u8 reserved1 /* FW reserved. */;
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__le16 reserved2[ETH_TPA_CQE_CONT_LEN_LIST_SIZE] /* FW reserved. */;
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u8 reserved3[3];
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struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
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};
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/*
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* TPA-end ETH Rx FP CQE .
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*/
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struct eth_fast_path_rx_tpa_end_cqe
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{
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u8 type /* CQE type (use enum eth_rx_cqe_type) */;
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u8 tpa_agg_index /* TPA aggregation index */;
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__le16 total_packet_len /* Total aggregated packet length */;
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u8 num_of_bds /* Total number of BDs comprising the packet */;
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u8 end_reason /* Aggregation end reason. Use enum eth_tpa_end_reason */;
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__le16 num_of_coalesced_segs /* Number of coalesced TCP segments */;
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__le32 ts_delta /* TCP timestamp delta */;
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__le16 len_list[ETH_TPA_CQE_END_LEN_LIST_SIZE] /* List of the segment sizes */;
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__le16 reserved3[ETH_TPA_CQE_END_LEN_LIST_SIZE] /* FW reserved. */;
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__le16 reserved1;
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u8 reserved2 /* FW reserved. */;
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struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
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};
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/*
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* TPA-start ETH Rx FP CQE.
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*/
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struct eth_fast_path_rx_tpa_start_cqe
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{
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u8 type /* CQE type (use enum eth_rx_cqe_type) */;
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u8 bitfields;
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#define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_MASK 0x7 /* Type of calculated RSS hash (use enum rss_hash_type) */
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#define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_SHIFT 0
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#define ETH_FAST_PATH_RX_TPA_START_CQE_TC_MASK 0xF /* Traffic Class */
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#define ETH_FAST_PATH_RX_TPA_START_CQE_TC_SHIFT 3
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#define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_MASK 0x1
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#define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_SHIFT 7
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__le16 seg_len /* Segment length (packetLen from the parser) */;
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struct parsing_and_err_flags pars_flags /* Parsing and error flags from the parser */;
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__le16 vlan_tag /* 802.1q VLAN tag */;
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__le32 rss_hash /* RSS hash result */;
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__le16 len_on_first_bd /* Number of bytes placed on first BD */;
|
|
u8 placement_offset /* Offset of placement from BD start */;
|
|
struct eth_tunnel_parsing_flags tunnel_pars_flags /* Tunnel Parsing Flags */;
|
|
u8 tpa_agg_index /* TPA aggregation index */;
|
|
u8 header_len /* Packet L2+L3+L4 header length */;
|
|
__le16 ext_bd_len_list[ETH_TPA_CQE_START_LEN_LIST_SIZE] /* Additional BDs length list. */;
|
|
__le16 flow_id /* aRFS flow ID. */;
|
|
u8 reserved;
|
|
struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
|
|
};
|
|
|
|
/*
|
|
* The L4 pseudo checksum mode for Ethernet
|
|
*/
|
|
enum eth_l4_pseudo_checksum_mode
|
|
{
|
|
ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH /* Pseudo Header checksum on packet is calculated with the correct packet length field. */,
|
|
ETH_L4_PSEUDO_CSUM_ZERO_LENGTH /* Pseudo Header checksum on packet is calculated with zero length field. */,
|
|
MAX_ETH_L4_PSEUDO_CHECKSUM_MODE
|
|
};
|
|
|
|
struct eth_rx_bd
|
|
{
|
|
struct regpair addr /* single continues buffer */;
|
|
};
|
|
|
|
/*
|
|
* regular ETH Rx SP CQE
|
|
*/
|
|
struct eth_slow_path_rx_cqe
|
|
{
|
|
u8 type /* CQE type (use enum eth_rx_cqe_type) */;
|
|
u8 ramrod_cmd_id;
|
|
u8 error_flag;
|
|
u8 reserved[25];
|
|
__le16 echo;
|
|
u8 reserved1;
|
|
struct eth_pmd_flow_flags pmd_flags /* CQE valid and toggle bits */;
|
|
};
|
|
|
|
/*
|
|
* union for all ETH Rx CQE types
|
|
*/
|
|
union eth_rx_cqe
|
|
{
|
|
struct eth_fast_path_rx_reg_cqe fast_path_regular /* Regular FP CQE */;
|
|
struct eth_fast_path_rx_tpa_start_cqe fast_path_tpa_start /* TPA-start CQE */;
|
|
struct eth_fast_path_rx_tpa_cont_cqe fast_path_tpa_cont /* TPA-continue CQE */;
|
|
struct eth_fast_path_rx_tpa_end_cqe fast_path_tpa_end /* TPA-end CQE */;
|
|
struct eth_slow_path_rx_cqe slow_path /* SP CQE */;
|
|
};
|
|
|
|
/*
|
|
* ETH Rx CQE type
|
|
*/
|
|
enum eth_rx_cqe_type
|
|
{
|
|
ETH_RX_CQE_TYPE_UNUSED,
|
|
ETH_RX_CQE_TYPE_REGULAR /* Regular FP ETH Rx CQE */,
|
|
ETH_RX_CQE_TYPE_SLOW_PATH /* Slow path ETH Rx CQE */,
|
|
ETH_RX_CQE_TYPE_TPA_START /* TPA start ETH Rx CQE */,
|
|
ETH_RX_CQE_TYPE_TPA_CONT /* TPA Continue ETH Rx CQE */,
|
|
ETH_RX_CQE_TYPE_TPA_END /* TPA end ETH Rx CQE */,
|
|
MAX_ETH_RX_CQE_TYPE
|
|
};
|
|
|
|
/*
|
|
* Wrapper for PD RX CQE - used in order to cover full cache line when writing CQE
|
|
*/
|
|
struct eth_rx_pmd_cqe
|
|
{
|
|
union eth_rx_cqe cqe /* CQE data itself */;
|
|
u8 reserved[ETH_RX_CQE_GAP];
|
|
};
|
|
|
|
/*
|
|
* Eth RX Tunnel Type
|
|
*/
|
|
enum eth_rx_tunn_type
|
|
{
|
|
ETH_RX_NO_TUNN /* No Tunnel. */,
|
|
ETH_RX_TUNN_GENEVE /* GENEVE Tunnel. */,
|
|
ETH_RX_TUNN_GRE /* GRE Tunnel. */,
|
|
ETH_RX_TUNN_VXLAN /* VXLAN Tunnel. */,
|
|
MAX_ETH_RX_TUNN_TYPE
|
|
};
|
|
|
|
/*
|
|
* Aggregation end reason.
|
|
*/
|
|
enum eth_tpa_end_reason
|
|
{
|
|
ETH_AGG_END_UNUSED,
|
|
ETH_AGG_END_SP_UPDATE /* SP configuration update */,
|
|
ETH_AGG_END_MAX_LEN /* Maximum aggregation length or maximum buffer number used. */,
|
|
ETH_AGG_END_LAST_SEG /* TCP PSH flag or TCP payload length below continue threshold. */,
|
|
ETH_AGG_END_TIMEOUT /* Timeout expiration. */,
|
|
ETH_AGG_END_NOT_CONSISTENT /* Packet header not consistency: different IPv4 TOS, TTL or flags, IPv6 TC, Hop limit or Flow label, TCP header length or TS options. In GRO different TS value, SMAC, DMAC, ackNum, windowSize or VLAN */,
|
|
ETH_AGG_END_OUT_OF_ORDER /* Out of order or retransmission packet: sequence, ack or timestamp not consistent with previous segment. */,
|
|
ETH_AGG_END_NON_TPA_SEG /* Next segment cant be aggregated due to LLC/SNAP, IP error, IP fragment, IPv4 options, IPv6 extension, IP ECN = CE, TCP errors, TCP options, zero TCP payload length , TCP flags or not supported tunnel header options. */,
|
|
MAX_ETH_TPA_END_REASON
|
|
};
|
|
|
|
/*
|
|
* The first tx bd of a given packet
|
|
*/
|
|
struct eth_tx_1st_bd
|
|
{
|
|
struct regpair addr /* Single continuous buffer */;
|
|
__le16 nbytes /* Number of bytes in this BD. */;
|
|
struct eth_tx_data_1st_bd data /* Parsing information data. */;
|
|
};
|
|
|
|
/*
|
|
* The second tx bd of a given packet
|
|
*/
|
|
struct eth_tx_2nd_bd
|
|
{
|
|
struct regpair addr /* Single continuous buffer */;
|
|
__le16 nbytes /* Number of bytes in this BD. */;
|
|
struct eth_tx_data_2nd_bd data /* Parsing information data. */;
|
|
};
|
|
|
|
/*
|
|
* The parsing information data for the third tx bd of a given packet.
|
|
*/
|
|
struct eth_tx_data_3rd_bd
|
|
{
|
|
__le16 lso_mss /* For LSO packet - the MSS in bytes. */;
|
|
__le16 bitfields;
|
|
#define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK 0xF /* For LSO with inner/outer IPv6+ext - TCP header length (in 4-byte WORDs) */
|
|
#define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT 0
|
|
#define ETH_TX_DATA_3RD_BD_HDR_NBD_MASK 0xF /* LSO - number of BDs which contain headers. value should be in range (1..ETH_TX_MAX_LSO_HDR_NBD). */
|
|
#define ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT 4
|
|
#define ETH_TX_DATA_3RD_BD_START_BD_MASK 0x1 /* Should be 0 in all the BDs, except the first one. (for debug) */
|
|
#define ETH_TX_DATA_3RD_BD_START_BD_SHIFT 8
|
|
#define ETH_TX_DATA_3RD_BD_RESERVED0_MASK 0x7F
|
|
#define ETH_TX_DATA_3RD_BD_RESERVED0_SHIFT 9
|
|
u8 tunn_l4_hdr_start_offset_w /* For tunnel with IPv6+ext - Pointer to the tunnel L4 Header (in 2-byte WORDs) */;
|
|
u8 tunn_hdr_size_w /* For tunnel with IPv6+ext - Total size of the Tunnel Header (in 2-byte WORDs) */;
|
|
};
|
|
|
|
/*
|
|
* The third tx bd of a given packet
|
|
*/
|
|
struct eth_tx_3rd_bd
|
|
{
|
|
struct regpair addr /* Single continuous buffer */;
|
|
__le16 nbytes /* Number of bytes in this BD. */;
|
|
struct eth_tx_data_3rd_bd data /* Parsing information data. */;
|
|
};
|
|
|
|
/*
|
|
* Complementary information for the regular tx bd of a given packet.
|
|
*/
|
|
struct eth_tx_data_bd
|
|
{
|
|
__le16 reserved0;
|
|
__le16 bitfields;
|
|
#define ETH_TX_DATA_BD_RESERVED1_MASK 0xFF
|
|
#define ETH_TX_DATA_BD_RESERVED1_SHIFT 0
|
|
#define ETH_TX_DATA_BD_START_BD_MASK 0x1 /* Should be 0 in all the BDs, except the first one. (for debug) */
|
|
#define ETH_TX_DATA_BD_START_BD_SHIFT 8
|
|
#define ETH_TX_DATA_BD_RESERVED2_MASK 0x7F
|
|
#define ETH_TX_DATA_BD_RESERVED2_SHIFT 9
|
|
__le16 reserved3;
|
|
};
|
|
|
|
/*
|
|
* The common regular TX BD ring element
|
|
*/
|
|
struct eth_tx_bd
|
|
{
|
|
struct regpair addr /* Single continuous buffer */;
|
|
__le16 nbytes /* Number of bytes in this BD. */;
|
|
struct eth_tx_data_bd data /* Complementary information. */;
|
|
};
|
|
|
|
union eth_tx_bd_types
|
|
{
|
|
struct eth_tx_1st_bd first_bd /* The first tx bd of a given packet */;
|
|
struct eth_tx_2nd_bd second_bd /* The second tx bd of a given packet */;
|
|
struct eth_tx_3rd_bd third_bd /* The third tx bd of a given packet */;
|
|
struct eth_tx_bd reg_bd /* The common non-special bd */;
|
|
};
|
|
|
|
/*
|
|
* Eth Tx Tunnel Type
|
|
*/
|
|
enum eth_tx_tunn_type
|
|
{
|
|
ETH_TX_TUNN_GENEVE /* GENEVE Tunnel. */,
|
|
ETH_TX_TUNN_TTAG /* T-Tag Tunnel. */,
|
|
ETH_TX_TUNN_GRE /* GRE Tunnel. */,
|
|
ETH_TX_TUNN_VXLAN /* VXLAN Tunnel. */,
|
|
MAX_ETH_TX_TUNN_TYPE
|
|
};
|
|
|
|
/*
|
|
* Ystorm Queue Zone
|
|
*/
|
|
struct xstorm_eth_queue_zone
|
|
{
|
|
struct coalescing_timeset int_coalescing_timeset /* Tx interrupt coalescing TimeSet */;
|
|
u8 reserved[7];
|
|
};
|
|
|
|
/*
|
|
* ETH doorbell data
|
|
*/
|
|
struct eth_db_data
|
|
{
|
|
u8 params;
|
|
#define ETH_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */
|
|
#define ETH_DB_DATA_DEST_SHIFT 0
|
|
#define ETH_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */
|
|
#define ETH_DB_DATA_AGG_CMD_SHIFT 2
|
|
#define ETH_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */
|
|
#define ETH_DB_DATA_BYPASS_EN_SHIFT 4
|
|
#define ETH_DB_DATA_RESERVED_MASK 0x1
|
|
#define ETH_DB_DATA_RESERVED_SHIFT 5
|
|
#define ETH_DB_DATA_AGG_VAL_SEL_MASK 0x3 /* aggregative value selection */
|
|
#define ETH_DB_DATA_AGG_VAL_SEL_SHIFT 6
|
|
u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */;
|
|
__le16 bd_prod;
|
|
};
|
|
|
|
/*
|
|
* RSS hash type
|
|
*/
|
|
enum rss_hash_type
|
|
{
|
|
RSS_HASH_TYPE_DEFAULT=0,
|
|
RSS_HASH_TYPE_IPV4=1,
|
|
RSS_HASH_TYPE_TCP_IPV4=2,
|
|
RSS_HASH_TYPE_IPV6=3,
|
|
RSS_HASH_TYPE_TCP_IPV6=4,
|
|
RSS_HASH_TYPE_UDP_IPV4=5,
|
|
RSS_HASH_TYPE_UDP_IPV6=6,
|
|
MAX_RSS_HASH_TYPE
|
|
};
|
|
|
|
#endif /* __ETH_COMMON__ */
|