/* * drivers/net/ethernet/mellanox/mlxsw/pci.h * Copyright (c) 2015 Mellanox Technologies. All rights reserved. * Copyright (c) 2015 Jiri Pirko * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the names of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MLXSW_PCI_H #define _MLXSW_PCI_H #include #include "item.h" #define PCI_DEVICE_ID_MELLANOX_SWITCHX2 0xc738 #define PCI_DEVICE_ID_MELLANOX_SPECTRUM 0xcb84 #define MLXSW_PCI_BAR0_SIZE (1024 * 1024) /* 1MB */ #define MLXSW_PCI_PAGE_SIZE 4096 #define MLXSW_PCI_CIR_BASE 0x71000 #define MLXSW_PCI_CIR_IN_PARAM_HI MLXSW_PCI_CIR_BASE #define MLXSW_PCI_CIR_IN_PARAM_LO (MLXSW_PCI_CIR_BASE + 0x04) #define MLXSW_PCI_CIR_IN_MODIFIER (MLXSW_PCI_CIR_BASE + 0x08) #define MLXSW_PCI_CIR_OUT_PARAM_HI (MLXSW_PCI_CIR_BASE + 0x0C) #define MLXSW_PCI_CIR_OUT_PARAM_LO (MLXSW_PCI_CIR_BASE + 0x10) #define MLXSW_PCI_CIR_TOKEN (MLXSW_PCI_CIR_BASE + 0x14) #define MLXSW_PCI_CIR_CTRL (MLXSW_PCI_CIR_BASE + 0x18) #define MLXSW_PCI_CIR_CTRL_GO_BIT BIT(23) #define MLXSW_PCI_CIR_CTRL_EVREQ_BIT BIT(22) #define MLXSW_PCI_CIR_CTRL_OPCODE_MOD_SHIFT 12 #define MLXSW_PCI_CIR_CTRL_STATUS_SHIFT 24 #define MLXSW_PCI_CIR_TIMEOUT_MSECS 1000 #define MLXSW_PCI_SW_RESET 0xF0010 #define MLXSW_PCI_SW_RESET_RST_BIT BIT(0) #define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 5000 #define MLXSW_PCI_FW_READY 0xA1844 #define MLXSW_PCI_FW_READY_MASK 0xFF #define MLXSW_PCI_FW_READY_MAGIC 0x5E #define MLXSW_PCI_DOORBELL_SDQ_OFFSET 0x000 #define MLXSW_PCI_DOORBELL_RDQ_OFFSET 0x200 #define MLXSW_PCI_DOORBELL_CQ_OFFSET 0x400 #define MLXSW_PCI_DOORBELL_EQ_OFFSET 0x600 #define MLXSW_PCI_DOORBELL_ARM_CQ_OFFSET 0x800 #define MLXSW_PCI_DOORBELL_ARM_EQ_OFFSET 0xA00 #define MLXSW_PCI_DOORBELL(offset, type_offset, num) \ ((offset) + (type_offset) + (num) * 4) #define MLXSW_PCI_CQS_MAX 96 #define MLXSW_PCI_EQS_COUNT 2 #define MLXSW_PCI_EQ_ASYNC_NUM 0 #define MLXSW_PCI_EQ_COMP_NUM 1 #define MLXSW_PCI_AQ_PAGES 8 #define MLXSW_PCI_AQ_SIZE (MLXSW_PCI_PAGE_SIZE * MLXSW_PCI_AQ_PAGES) #define MLXSW_PCI_WQE_SIZE 32 /* 32 bytes per element */ #define MLXSW_PCI_CQE_SIZE 16 /* 16 bytes per element */ #define MLXSW_PCI_EQE_SIZE 16 /* 16 bytes per element */ #define MLXSW_PCI_WQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_WQE_SIZE) #define MLXSW_PCI_CQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE_SIZE) #define MLXSW_PCI_EQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_EQE_SIZE) #define MLXSW_PCI_EQE_UPDATE_COUNT 0x80 #define MLXSW_PCI_WQE_SG_ENTRIES 3 #define MLXSW_PCI_WQE_TYPE_ETHERNET 0xA /* pci_wqe_c * If set it indicates that a completion should be reported upon * execution of this descriptor. */ MLXSW_ITEM32(pci, wqe, c, 0x00, 31, 1); /* pci_wqe_lp * Local Processing, set if packet should be processed by the local * switch hardware: * For Ethernet EMAD (Direct Route and non Direct Route) - * must be set if packet destination is local device * For InfiniBand CTL - must be set if packet destination is local device * Otherwise it must be clear * Local Process packets must not exceed the size of 2K (including payload * and headers). */ MLXSW_ITEM32(pci, wqe, lp, 0x00, 30, 1); /* pci_wqe_type * Packet type. */ MLXSW_ITEM32(pci, wqe, type, 0x00, 23, 4); /* pci_wqe_byte_count * Size of i-th scatter/gather entry, 0 if entry is unused. */ MLXSW_ITEM16_INDEXED(pci, wqe, byte_count, 0x02, 0, 14, 0x02, 0x00, false); /* pci_wqe_address * Physical address of i-th scatter/gather entry. * Gather Entries must be 2Byte aligned. */ MLXSW_ITEM64_INDEXED(pci, wqe, address, 0x08, 0, 64, 0x8, 0x0, false); /* pci_cqe_lag * Packet arrives from a port which is a LAG */ MLXSW_ITEM32(pci, cqe, lag, 0x00, 23, 1); /* pci_cqe_system_port/lag_id * When lag=0: System port on which the packet was received * When lag=1: * bits [15:4] LAG ID on which the packet was received * bits [3:0] sub_port on which the packet was received */ MLXSW_ITEM32(pci, cqe, system_port, 0x00, 0, 16); MLXSW_ITEM32(pci, cqe, lag_id, 0x00, 4, 12); MLXSW_ITEM32(pci, cqe, lag_port_index, 0x00, 0, 4); /* pci_cqe_wqe_counter * WQE count of the WQEs completed on the associated dqn */ MLXSW_ITEM32(pci, cqe, wqe_counter, 0x04, 16, 16); /* pci_cqe_byte_count * Byte count of received packets including additional two * Reserved Bytes that are append to the end of the frame. * Reserved for Send CQE. */ MLXSW_ITEM32(pci, cqe, byte_count, 0x04, 0, 14); /* pci_cqe_trap_id * Trap ID that captured the packet. */ MLXSW_ITEM32(pci, cqe, trap_id, 0x08, 0, 8); /* pci_cqe_crc * Length include CRC. Indicates the length field includes * the packet's CRC. */ MLXSW_ITEM32(pci, cqe, crc, 0x0C, 8, 1); /* pci_cqe_e * CQE with Error. */ MLXSW_ITEM32(pci, cqe, e, 0x0C, 7, 1); /* pci_cqe_sr * 1 - Send Queue * 0 - Receive Queue */ MLXSW_ITEM32(pci, cqe, sr, 0x0C, 6, 1); /* pci_cqe_dqn * Descriptor Queue (DQ) Number. */ MLXSW_ITEM32(pci, cqe, dqn, 0x0C, 1, 5); /* pci_cqe_owner * Ownership bit. */ MLXSW_ITEM32(pci, cqe, owner, 0x0C, 0, 1); /* pci_eqe_event_type * Event type. */ MLXSW_ITEM32(pci, eqe, event_type, 0x0C, 24, 8); #define MLXSW_PCI_EQE_EVENT_TYPE_COMP 0x00 #define MLXSW_PCI_EQE_EVENT_TYPE_CMD 0x0A /* pci_eqe_event_sub_type * Event type. */ MLXSW_ITEM32(pci, eqe, event_sub_type, 0x0C, 16, 8); /* pci_eqe_cqn * Completion Queue that triggeret this EQE. */ MLXSW_ITEM32(pci, eqe, cqn, 0x0C, 8, 7); /* pci_eqe_owner * Ownership bit. */ MLXSW_ITEM32(pci, eqe, owner, 0x0C, 0, 1); /* pci_eqe_cmd_token * Command completion event - token */ MLXSW_ITEM32(pci, eqe, cmd_token, 0x00, 16, 16); /* pci_eqe_cmd_status * Command completion event - status */ MLXSW_ITEM32(pci, eqe, cmd_status, 0x00, 0, 8); /* pci_eqe_cmd_out_param_h * Command completion event - output parameter - higher part */ MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x04, 0, 32); /* pci_eqe_cmd_out_param_l * Command completion event - output parameter - lower part */ MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x08, 0, 32); #endif