linux-stable/drivers/scsi/qla2xxx/qla_nx2.h
Thomas Gleixner 77adf3f01b scsi/qla2xxx: Convert to SPDX license identifiers
All files in this driver directory contain the following notice:

  See LICENSE.qla2xxx for copyright and licensing details.

LICENSE.qla2xxx can be found in Documentation/scsi/. The file contains:

  - A copyright notice

    This copyright notice is redundant as all files contain the same
    copyright notice already

  - A license notice

    You may modify and redistribute the device driver code under the
    GNU General Public License (a copy of which is attached hereto as
    Exhibit A) published by the Free Software Foundation (version 2).

    This can be replaced with the corresponding SPDX license identifier
    (GPL-2.0-only) in the source files which reference this license
    file.

  - The full GPLv2 license text

    A redundant copy of LICENSES/preferred/GPL-2.0

Remove the notices and add the SPDX license identifier GPL-2.0-only to the
source files.

Finally remove the now redundant LICENSE.qla2xxx file.

Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16 14:31:50 +02:00

579 lines
16 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#ifndef __QLA_NX2_H
#define __QLA_NX2_H
#define QSNT_ACK_TOV 30
#define INTENT_TO_RECOVER 0x01
#define PROCEED_TO_RECOVER 0x02
#define IDC_LOCK_RECOVERY_OWNER_MASK 0x3C
#define IDC_LOCK_RECOVERY_STATE_MASK 0x3
#define IDC_LOCK_RECOVERY_STATE_SHIFT_BITS 2
#define QLA8044_DRV_LOCK_MSLEEP 200
#define QLA8044_ADDR_DDR_NET (0x0000000000000000ULL)
#define QLA8044_ADDR_DDR_NET_MAX (0x000000000fffffffULL)
#define MD_MIU_TEST_AGT_WRDATA_LO 0x410000A0
#define MD_MIU_TEST_AGT_WRDATA_HI 0x410000A4
#define MD_MIU_TEST_AGT_WRDATA_ULO 0x410000B0
#define MD_MIU_TEST_AGT_WRDATA_UHI 0x410000B4
/* MIU_TEST_AGT_CTRL flags. work for SIU as well */
#define MIU_TA_CTL_WRITE_ENABLE (MIU_TA_CTL_WRITE | MIU_TA_CTL_ENABLE)
#define MIU_TA_CTL_WRITE_START (MIU_TA_CTL_WRITE | MIU_TA_CTL_ENABLE | \
MIU_TA_CTL_START)
#define MIU_TA_CTL_START_ENABLE (MIU_TA_CTL_START | MIU_TA_CTL_ENABLE)
/* Imbus address bit used to indicate a host address. This bit is
* eliminated by the pcie bar and bar select before presentation
* over pcie. */
/* host memory via IMBUS */
#define QLA8044_P2_ADDR_PCIE (0x0000000800000000ULL)
#define QLA8044_P3_ADDR_PCIE (0x0000008000000000ULL)
#define QLA8044_ADDR_PCIE_MAX (0x0000000FFFFFFFFFULL)
#define QLA8044_ADDR_OCM0 (0x0000000200000000ULL)
#define QLA8044_ADDR_OCM0_MAX (0x00000002000fffffULL)
#define QLA8044_ADDR_OCM1 (0x0000000200400000ULL)
#define QLA8044_ADDR_OCM1_MAX (0x00000002004fffffULL)
#define QLA8044_ADDR_QDR_NET (0x0000000300000000ULL)
#define QLA8044_P2_ADDR_QDR_NET_MAX (0x00000003001fffffULL)
#define QLA8044_P3_ADDR_QDR_NET_MAX (0x0000000303ffffffULL)
#define QLA8044_ADDR_QDR_NET_MAX (0x0000000307ffffffULL)
#define QLA8044_PCI_CRBSPACE ((unsigned long)0x06000000)
#define QLA8044_PCI_DIRECT_CRB ((unsigned long)0x04400000)
#define QLA8044_PCI_CAMQM ((unsigned long)0x04800000)
#define QLA8044_PCI_CAMQM_MAX ((unsigned long)0x04ffffff)
#define QLA8044_PCI_DDR_NET ((unsigned long)0x00000000)
#define QLA8044_PCI_QDR_NET ((unsigned long)0x04000000)
#define QLA8044_PCI_QDR_NET_MAX ((unsigned long)0x043fffff)
/* PCI Windowing for DDR regions. */
static inline bool addr_in_range(u64 addr, u64 low, u64 high)
{
return addr <= high && addr >= low;
}
/* Indirectly Mapped Registers */
#define QLA8044_FLASH_SPI_STATUS 0x2808E010
#define QLA8044_FLASH_SPI_CONTROL 0x2808E014
#define QLA8044_FLASH_STATUS 0x42100004
#define QLA8044_FLASH_CONTROL 0x42110004
#define QLA8044_FLASH_ADDR 0x42110008
#define QLA8044_FLASH_WRDATA 0x4211000C
#define QLA8044_FLASH_RDDATA 0x42110018
#define QLA8044_FLASH_DIRECT_WINDOW 0x42110030
#define QLA8044_FLASH_DIRECT_DATA(DATA) (0x42150000 | (0x0000FFFF&DATA))
/* Flash access regs */
#define QLA8044_FLASH_LOCK 0x3850
#define QLA8044_FLASH_UNLOCK 0x3854
#define QLA8044_FLASH_LOCK_ID 0x3500
/* Driver Lock regs */
#define QLA8044_DRV_LOCK 0x3868
#define QLA8044_DRV_UNLOCK 0x386C
#define QLA8044_DRV_LOCK_ID 0x3504
#define QLA8044_DRV_LOCKRECOVERY 0x379C
/* IDC version */
#define QLA8044_IDC_VER_MAJ_VALUE 0x1
#define QLA8044_IDC_VER_MIN_VALUE 0x0
/* IDC Registers : Driver Coexistence Defines */
#define QLA8044_CRB_IDC_VER_MAJOR 0x3780
#define QLA8044_CRB_IDC_VER_MINOR 0x3798
#define QLA8044_IDC_DRV_AUDIT 0x3794
#define QLA8044_SRE_SHIM_CONTROL 0x0D200284
#define QLA8044_PORT0_RXB_PAUSE_THRS 0x0B2003A4
#define QLA8044_PORT1_RXB_PAUSE_THRS 0x0B2013A4
#define QLA8044_PORT0_RXB_TC_MAX_CELL 0x0B200388
#define QLA8044_PORT1_RXB_TC_MAX_CELL 0x0B201388
#define QLA8044_PORT0_RXB_TC_STATS 0x0B20039C
#define QLA8044_PORT1_RXB_TC_STATS 0x0B20139C
#define QLA8044_PORT2_IFB_PAUSE_THRS 0x0B200704
#define QLA8044_PORT3_IFB_PAUSE_THRS 0x0B201704
/* set value to pause threshold value */
#define QLA8044_SET_PAUSE_VAL 0x0
#define QLA8044_SET_TC_MAX_CELL_VAL 0x03FF03FF
#define QLA8044_PEG_HALT_STATUS1 0x34A8
#define QLA8044_PEG_HALT_STATUS2 0x34AC
#define QLA8044_PEG_ALIVE_COUNTER 0x34B0 /* FW_HEARTBEAT */
#define QLA8044_FW_CAPABILITIES 0x3528
#define QLA8044_CRB_DRV_ACTIVE 0x3788 /* IDC_DRV_PRESENCE */
#define QLA8044_CRB_DEV_STATE 0x3784 /* IDC_DEV_STATE */
#define QLA8044_CRB_DRV_STATE 0x378C /* IDC_DRV_ACK */
#define QLA8044_CRB_DRV_SCRATCH 0x3548
#define QLA8044_CRB_DEV_PART_INFO1 0x37E0
#define QLA8044_CRB_DEV_PART_INFO2 0x37E4
#define QLA8044_FW_VER_MAJOR 0x3550
#define QLA8044_FW_VER_MINOR 0x3554
#define QLA8044_FW_VER_SUB 0x3558
#define QLA8044_NPAR_STATE 0x359C
#define QLA8044_FW_IMAGE_VALID 0x35FC
#define QLA8044_CMDPEG_STATE 0x3650
#define QLA8044_ASIC_TEMP 0x37B4
#define QLA8044_FW_API 0x356C
#define QLA8044_DRV_OP_MODE 0x3570
#define QLA8044_CRB_WIN_BASE 0x3800
#define QLA8044_CRB_WIN_FUNC(f) (QLA8044_CRB_WIN_BASE+((f)*4))
#define QLA8044_SEM_LOCK_BASE 0x3840
#define QLA8044_SEM_UNLOCK_BASE 0x3844
#define QLA8044_SEM_LOCK_FUNC(f) (QLA8044_SEM_LOCK_BASE+((f)*8))
#define QLA8044_SEM_UNLOCK_FUNC(f) (QLA8044_SEM_UNLOCK_BASE+((f)*8))
#define QLA8044_LINK_STATE(f) (0x3698+((f) > 7 ? 4 : 0))
#define QLA8044_LINK_SPEED(f) (0x36E0+(((f) >> 2) * 4))
#define QLA8044_MAX_LINK_SPEED(f) (0x36F0+(((f) / 4) * 4))
#define QLA8044_LINK_SPEED_FACTOR 10
#define QLA8044_FUN7_ACTIVE_INDEX 0x80
/* FLASH API Defines */
#define QLA8044_FLASH_MAX_WAIT_USEC 100
#define QLA8044_FLASH_LOCK_TIMEOUT 10000
#define QLA8044_FLASH_SECTOR_SIZE 65536
#define QLA8044_DRV_LOCK_TIMEOUT 2000
#define QLA8044_FLASH_SECTOR_ERASE_CMD 0xdeadbeef
#define QLA8044_FLASH_WRITE_CMD 0xdacdacda
#define QLA8044_FLASH_BUFFER_WRITE_CMD 0xcadcadca
#define QLA8044_FLASH_READ_RETRY_COUNT 2000
#define QLA8044_FLASH_STATUS_READY 0x6
#define QLA8044_FLASH_BUFFER_WRITE_MIN 2
#define QLA8044_FLASH_BUFFER_WRITE_MAX 64
#define QLA8044_FLASH_STATUS_REG_POLL_DELAY 1
#define QLA8044_ERASE_MODE 1
#define QLA8044_WRITE_MODE 2
#define QLA8044_DWORD_WRITE_MODE 3
#define QLA8044_GLOBAL_RESET 0x38CC
#define QLA8044_WILDCARD 0x38F0
#define QLA8044_INFORMANT 0x38FC
#define QLA8044_HOST_MBX_CTRL 0x3038
#define QLA8044_FW_MBX_CTRL 0x303C
#define QLA8044_BOOTLOADER_ADDR 0x355C
#define QLA8044_BOOTLOADER_SIZE 0x3560
#define QLA8044_FW_IMAGE_ADDR 0x3564
#define QLA8044_MBX_INTR_ENABLE 0x1000
#define QLA8044_MBX_INTR_MASK 0x1200
/* IDC Control Register bit defines */
#define DONTRESET_BIT0 0x1
#define GRACEFUL_RESET_BIT1 0x2
/* ISP8044 PEG_HALT_STATUS1 bits */
#define QLA8044_HALT_STATUS_INFORMATIONAL (0x1 << 29)
#define QLA8044_HALT_STATUS_FW_RESET (0x2 << 29)
#define QLA8044_HALT_STATUS_UNRECOVERABLE (0x4 << 29)
/* Firmware image definitions */
#define QLA8044_BOOTLOADER_FLASH_ADDR 0x10000
#define QLA8044_BOOT_FROM_FLASH 0
#define QLA8044_IDC_PARAM_ADDR 0x3e8020
/* FLASH related definitions */
#define QLA8044_OPTROM_BURST_SIZE 0x100
#define QLA8044_MAX_OPTROM_BURST_DWORDS (QLA8044_OPTROM_BURST_SIZE / 4)
#define QLA8044_MIN_OPTROM_BURST_DWORDS 2
#define QLA8044_SECTOR_SIZE (64 * 1024)
#define QLA8044_FLASH_SPI_CTL 0x4
#define QLA8044_FLASH_FIRST_TEMP_VAL 0x00800000
#define QLA8044_FLASH_SECOND_TEMP_VAL 0x00800001
#define QLA8044_FLASH_FIRST_MS_PATTERN 0x43
#define QLA8044_FLASH_SECOND_MS_PATTERN 0x7F
#define QLA8044_FLASH_LAST_MS_PATTERN 0x7D
#define QLA8044_FLASH_STATUS_WRITE_DEF_SIG 0xFD0100
#define QLA8044_FLASH_SECOND_ERASE_MS_VAL 0x5
#define QLA8044_FLASH_ERASE_SIG 0xFD0300
#define QLA8044_FLASH_LAST_ERASE_MS_VAL 0x3D
/* Reset template definitions */
#define QLA8044_MAX_RESET_SEQ_ENTRIES 16
#define QLA8044_RESTART_TEMPLATE_SIZE 0x2000
#define QLA8044_RESET_TEMPLATE_ADDR 0x4F0000
#define QLA8044_RESET_SEQ_VERSION 0x0101
/* Reset template entry opcodes */
#define OPCODE_NOP 0x0000
#define OPCODE_WRITE_LIST 0x0001
#define OPCODE_READ_WRITE_LIST 0x0002
#define OPCODE_POLL_LIST 0x0004
#define OPCODE_POLL_WRITE_LIST 0x0008
#define OPCODE_READ_MODIFY_WRITE 0x0010
#define OPCODE_SEQ_PAUSE 0x0020
#define OPCODE_SEQ_END 0x0040
#define OPCODE_TMPL_END 0x0080
#define OPCODE_POLL_READ_LIST 0x0100
/* Template Header */
#define RESET_TMPLT_HDR_SIGNATURE 0xCAFE
#define QLA8044_IDC_DRV_CTRL 0x3790
#define AF_8044_NO_FW_DUMP 27 /* 0x08000000 */
#define MINIDUMP_SIZE_36K 36864
struct qla8044_reset_template_hdr {
uint16_t version;
uint16_t signature;
uint16_t size;
uint16_t entries;
uint16_t hdr_size;
uint16_t checksum;
uint16_t init_seq_offset;
uint16_t start_seq_offset;
} __packed;
/* Common Entry Header. */
struct qla8044_reset_entry_hdr {
uint16_t cmd;
uint16_t size;
uint16_t count;
uint16_t delay;
} __packed;
/* Generic poll entry type. */
struct qla8044_poll {
uint32_t test_mask;
uint32_t test_value;
} __packed;
/* Read modify write entry type. */
struct qla8044_rmw {
uint32_t test_mask;
uint32_t xor_value;
uint32_t or_value;
uint8_t shl;
uint8_t shr;
uint8_t index_a;
uint8_t rsvd;
} __packed;
/* Generic Entry Item with 2 DWords. */
struct qla8044_entry {
uint32_t arg1;
uint32_t arg2;
} __packed;
/* Generic Entry Item with 4 DWords.*/
struct qla8044_quad_entry {
uint32_t dr_addr;
uint32_t dr_value;
uint32_t ar_addr;
uint32_t ar_value;
} __packed;
struct qla8044_reset_template {
int seq_index;
int seq_error;
int array_index;
uint32_t array[QLA8044_MAX_RESET_SEQ_ENTRIES];
uint8_t *buff;
uint8_t *stop_offset;
uint8_t *start_offset;
uint8_t *init_offset;
struct qla8044_reset_template_hdr *hdr;
uint8_t seq_end;
uint8_t template_end;
};
/* Driver_code is for driver to write some info about the entry
* currently not used.
*/
struct qla8044_minidump_entry_hdr {
uint32_t entry_type;
uint32_t entry_size;
uint32_t entry_capture_size;
struct {
uint8_t entry_capture_mask;
uint8_t entry_code;
uint8_t driver_code;
uint8_t driver_flags;
} d_ctrl;
} __packed;
/* Read CRB entry header */
struct qla8044_minidump_entry_crb {
struct qla8044_minidump_entry_hdr h;
uint32_t addr;
struct {
uint8_t addr_stride;
uint8_t state_index_a;
uint16_t poll_timeout;
} crb_strd;
uint32_t data_size;
uint32_t op_count;
struct {
uint8_t opcode;
uint8_t state_index_v;
uint8_t shl;
uint8_t shr;
} crb_ctrl;
uint32_t value_1;
uint32_t value_2;
uint32_t value_3;
} __packed;
struct qla8044_minidump_entry_cache {
struct qla8044_minidump_entry_hdr h;
uint32_t tag_reg_addr;
struct {
uint16_t tag_value_stride;
uint16_t init_tag_value;
} addr_ctrl;
uint32_t data_size;
uint32_t op_count;
uint32_t control_addr;
struct {
uint16_t write_value;
uint8_t poll_mask;
uint8_t poll_wait;
} cache_ctrl;
uint32_t read_addr;
struct {
uint8_t read_addr_stride;
uint8_t read_addr_cnt;
uint16_t rsvd_1;
} read_ctrl;
} __packed;
/* Read OCM */
struct qla8044_minidump_entry_rdocm {
struct qla8044_minidump_entry_hdr h;
uint32_t rsvd_0;
uint32_t rsvd_1;
uint32_t data_size;
uint32_t op_count;
uint32_t rsvd_2;
uint32_t rsvd_3;
uint32_t read_addr;
uint32_t read_addr_stride;
} __packed;
/* Read Memory */
struct qla8044_minidump_entry_rdmem {
struct qla8044_minidump_entry_hdr h;
uint32_t rsvd[6];
uint32_t read_addr;
uint32_t read_data_size;
};
/* Read Memory: For Pex-DMA */
struct qla8044_minidump_entry_rdmem_pex_dma {
struct qla8044_minidump_entry_hdr h;
uint32_t desc_card_addr;
uint16_t dma_desc_cmd;
uint8_t rsvd[2];
uint32_t start_dma_cmd;
uint8_t rsvd2[12];
uint32_t read_addr;
uint32_t read_data_size;
} __packed;
/* Read ROM */
struct qla8044_minidump_entry_rdrom {
struct qla8044_minidump_entry_hdr h;
uint32_t rsvd[6];
uint32_t read_addr;
uint32_t read_data_size;
} __packed;
/* Mux entry */
struct qla8044_minidump_entry_mux {
struct qla8044_minidump_entry_hdr h;
uint32_t select_addr;
uint32_t rsvd_0;
uint32_t data_size;
uint32_t op_count;
uint32_t select_value;
uint32_t select_value_stride;
uint32_t read_addr;
uint32_t rsvd_1;
} __packed;
/* Queue entry */
struct qla8044_minidump_entry_queue {
struct qla8044_minidump_entry_hdr h;
uint32_t select_addr;
struct {
uint16_t queue_id_stride;
uint16_t rsvd_0;
} q_strd;
uint32_t data_size;
uint32_t op_count;
uint32_t rsvd_1;
uint32_t rsvd_2;
uint32_t read_addr;
struct {
uint8_t read_addr_stride;
uint8_t read_addr_cnt;
uint16_t rsvd_3;
} rd_strd;
} __packed;
/* POLLRD Entry */
struct qla8044_minidump_entry_pollrd {
struct qla8044_minidump_entry_hdr h;
uint32_t select_addr;
uint32_t read_addr;
uint32_t select_value;
uint16_t select_value_stride;
uint16_t op_count;
uint32_t poll_wait;
uint32_t poll_mask;
uint32_t data_size;
uint32_t rsvd_1;
} __packed;
struct qla8044_minidump_entry_rddfe {
struct qla8044_minidump_entry_hdr h;
uint32_t addr_1;
uint32_t value;
uint8_t stride;
uint8_t stride2;
uint16_t count;
uint32_t poll;
uint32_t mask;
uint32_t modify_mask;
uint32_t data_size;
uint32_t rsvd;
} __packed;
struct qla8044_minidump_entry_rdmdio {
struct qla8044_minidump_entry_hdr h;
uint32_t addr_1;
uint32_t addr_2;
uint32_t value_1;
uint8_t stride_1;
uint8_t stride_2;
uint16_t count;
uint32_t poll;
uint32_t mask;
uint32_t value_2;
uint32_t data_size;
} __packed;
struct qla8044_minidump_entry_pollwr {
struct qla8044_minidump_entry_hdr h;
uint32_t addr_1;
uint32_t addr_2;
uint32_t value_1;
uint32_t value_2;
uint32_t poll;
uint32_t mask;
uint32_t data_size;
uint32_t rsvd;
} __packed;
/* RDMUX2 Entry */
struct qla8044_minidump_entry_rdmux2 {
struct qla8044_minidump_entry_hdr h;
uint32_t select_addr_1;
uint32_t select_addr_2;
uint32_t select_value_1;
uint32_t select_value_2;
uint32_t op_count;
uint32_t select_value_mask;
uint32_t read_addr;
uint8_t select_value_stride;
uint8_t data_size;
uint8_t rsvd[2];
} __packed;
/* POLLRDMWR Entry */
struct qla8044_minidump_entry_pollrdmwr {
struct qla8044_minidump_entry_hdr h;
uint32_t addr_1;
uint32_t addr_2;
uint32_t value_1;
uint32_t value_2;
uint32_t poll_wait;
uint32_t poll_mask;
uint32_t modify_mask;
uint32_t data_size;
} __packed;
/* IDC additional information */
struct qla8044_idc_information {
uint32_t request_desc; /* IDC request descriptor */
uint32_t info1; /* IDC additional info */
uint32_t info2; /* IDC additional info */
uint32_t info3; /* IDC additional info */
} __packed;
enum qla_regs {
QLA8044_PEG_HALT_STATUS1_INDEX = 0,
QLA8044_PEG_HALT_STATUS2_INDEX,
QLA8044_PEG_ALIVE_COUNTER_INDEX,
QLA8044_CRB_DRV_ACTIVE_INDEX,
QLA8044_CRB_DEV_STATE_INDEX,
QLA8044_CRB_DRV_STATE_INDEX,
QLA8044_CRB_DRV_SCRATCH_INDEX,
QLA8044_CRB_DEV_PART_INFO_INDEX,
QLA8044_CRB_DRV_IDC_VERSION_INDEX,
QLA8044_FW_VERSION_MAJOR_INDEX,
QLA8044_FW_VERSION_MINOR_INDEX,
QLA8044_FW_VERSION_SUB_INDEX,
QLA8044_CRB_CMDPEG_STATE_INDEX,
QLA8044_CRB_TEMP_STATE_INDEX,
} __packed;
#define CRB_REG_INDEX_MAX 14
#define CRB_CMDPEG_CHECK_RETRY_COUNT 60
#define CRB_CMDPEG_CHECK_DELAY 500
/* MiniDump Structures */
/* Driver_code is for driver to write some info about the entry
* currently not used.
*/
#define QLA8044_SS_OCM_WNDREG_INDEX 3
#define QLA8044_DBG_STATE_ARRAY_LEN 16
#define QLA8044_DBG_CAP_SIZE_ARRAY_LEN 8
#define QLA8044_DBG_RSVD_ARRAY_LEN 8
#define QLA8044_DBG_OCM_WNDREG_ARRAY_LEN 16
#define QLA8044_SS_PCI_INDEX 0
#define QLA8044_RDDFE 38
#define QLA8044_RDMDIO 39
#define QLA8044_POLLWR 40
struct qla8044_minidump_template_hdr {
uint32_t entry_type;
uint32_t first_entry_offset;
uint32_t size_of_template;
uint32_t capture_debug_level;
uint32_t num_of_entries;
uint32_t version;
uint32_t driver_timestamp;
uint32_t checksum;
uint32_t driver_capture_mask;
uint32_t driver_info_word2;
uint32_t driver_info_word3;
uint32_t driver_info_word4;
uint32_t saved_state_array[QLA8044_DBG_STATE_ARRAY_LEN];
uint32_t capture_size_array[QLA8044_DBG_CAP_SIZE_ARRAY_LEN];
uint32_t ocm_window_reg[QLA8044_DBG_OCM_WNDREG_ARRAY_LEN];
};
struct qla8044_pex_dma_descriptor {
struct {
uint32_t read_data_size; /* 0-23: size, 24-31: rsvd */
uint8_t rsvd[2];
uint16_t dma_desc_cmd;
} cmd;
uint64_t src_addr;
uint64_t dma_bus_addr; /*0-3: desc-cmd, 4-7: pci-func, 8-15: desc-cmd*/
uint8_t rsvd[24];
} __packed;
#endif