| /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ |
| /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ |
| |
| #ifndef _MLXSW_PCI_HW_H |
| #define _MLXSW_PCI_HW_H |
| |
| #include <linux/bitops.h> |
| |
| #include "item.h" |
| |
| #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_SW_RESET_WAIT_MSECS 100 |
| #define MLXSW_PCI_FW_READY 0xA1844 |
| #define MLXSW_PCI_FW_READY_MASK 0xFFFF |
| #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_CQE01_SIZE 16 /* 16 bytes per element */ |
| #define MLXSW_PCI_CQE2_SIZE 32 /* 32 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_CQE01_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE01_SIZE) |
| #define MLXSW_PCI_CQE2_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE2_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); |
| |
| enum mlxsw_pci_cqe_v { |
| MLXSW_PCI_CQE_V0, |
| MLXSW_PCI_CQE_V1, |
| MLXSW_PCI_CQE_V2, |
| }; |
| |
| #define mlxsw_pci_cqe_item_helpers(name, v0, v1, v2) \ |
| static inline u32 mlxsw_pci_cqe_##name##_get(enum mlxsw_pci_cqe_v v, char *cqe) \ |
| { \ |
| switch (v) { \ |
| default: \ |
| case MLXSW_PCI_CQE_V0: \ |
| return mlxsw_pci_cqe##v0##_##name##_get(cqe); \ |
| case MLXSW_PCI_CQE_V1: \ |
| return mlxsw_pci_cqe##v1##_##name##_get(cqe); \ |
| case MLXSW_PCI_CQE_V2: \ |
| return mlxsw_pci_cqe##v2##_##name##_get(cqe); \ |
| } \ |
| } \ |
| static inline void mlxsw_pci_cqe_##name##_set(enum mlxsw_pci_cqe_v v, \ |
| char *cqe, u32 val) \ |
| { \ |
| switch (v) { \ |
| default: \ |
| case MLXSW_PCI_CQE_V0: \ |
| mlxsw_pci_cqe##v0##_##name##_set(cqe, val); \ |
| break; \ |
| case MLXSW_PCI_CQE_V1: \ |
| mlxsw_pci_cqe##v1##_##name##_set(cqe, val); \ |
| break; \ |
| case MLXSW_PCI_CQE_V2: \ |
| mlxsw_pci_cqe##v2##_##name##_set(cqe, val); \ |
| break; \ |
| } \ |
| } |
| |
| /* pci_cqe_lag |
| * Packet arrives from a port which is a LAG |
| */ |
| MLXSW_ITEM32(pci, cqe0, lag, 0x00, 23, 1); |
| MLXSW_ITEM32(pci, cqe12, lag, 0x00, 24, 1); |
| mlxsw_pci_cqe_item_helpers(lag, 0, 12, 12); |
| |
| /* 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, cqe0, lag_id, 0x00, 4, 12); |
| MLXSW_ITEM32(pci, cqe12, lag_id, 0x00, 0, 16); |
| mlxsw_pci_cqe_item_helpers(lag_id, 0, 12, 12); |
| MLXSW_ITEM32(pci, cqe0, lag_subport, 0x00, 0, 4); |
| MLXSW_ITEM32(pci, cqe12, lag_subport, 0x00, 16, 8); |
| mlxsw_pci_cqe_item_helpers(lag_subport, 0, 12, 12); |
| |
| /* 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, 9); |
| |
| /* pci_cqe_crc |
| * Length include CRC. Indicates the length field includes |
| * the packet's CRC. |
| */ |
| MLXSW_ITEM32(pci, cqe0, crc, 0x0C, 8, 1); |
| MLXSW_ITEM32(pci, cqe12, crc, 0x0C, 9, 1); |
| mlxsw_pci_cqe_item_helpers(crc, 0, 12, 12); |
| |
| /* pci_cqe_e |
| * CQE with Error. |
| */ |
| MLXSW_ITEM32(pci, cqe0, e, 0x0C, 7, 1); |
| MLXSW_ITEM32(pci, cqe12, e, 0x00, 27, 1); |
| mlxsw_pci_cqe_item_helpers(e, 0, 12, 12); |
| |
| /* pci_cqe_sr |
| * 1 - Send Queue |
| * 0 - Receive Queue |
| */ |
| MLXSW_ITEM32(pci, cqe0, sr, 0x0C, 6, 1); |
| MLXSW_ITEM32(pci, cqe12, sr, 0x00, 26, 1); |
| mlxsw_pci_cqe_item_helpers(sr, 0, 12, 12); |
| |
| /* pci_cqe_dqn |
| * Descriptor Queue (DQ) Number. |
| */ |
| MLXSW_ITEM32(pci, cqe0, dqn, 0x0C, 1, 5); |
| MLXSW_ITEM32(pci, cqe12, dqn, 0x0C, 1, 6); |
| mlxsw_pci_cqe_item_helpers(dqn, 0, 12, 12); |
| |
| /* pci_cqe_owner |
| * Ownership bit. |
| */ |
| MLXSW_ITEM32(pci, cqe01, owner, 0x0C, 0, 1); |
| MLXSW_ITEM32(pci, cqe2, owner, 0x1C, 0, 1); |
| mlxsw_pci_cqe_item_helpers(owner, 01, 01, 2); |
| |
| /* 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 |