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LICENSE
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pvscsi.c
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pvscsi.h
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Editing: pvscsi.h
/*- * Copyright (c) 2018 VMware, Inc. * * SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0) * * $FreeBSD$ */ #ifndef _PVSCSI_H_ #define _PVSCSI_H_ #define MASK(v) ((1 << (v)) - 1) #define PCI_VENDOR_ID_VMWARE 0x15ad #define PCI_DEVICE_ID_VMWARE_PVSCSI 0x07c0 enum pvscsi_reg_offset { PVSCSI_REG_OFFSET_COMMAND = 0x0000, PVSCSI_REG_OFFSET_COMMAND_DATA = 0x0004, PVSCSI_REG_OFFSET_COMMAND_STATUS = 0x0008, PVSCSI_REG_OFFSET_LAST_STS_0 = 0x0100, PVSCSI_REG_OFFSET_LAST_STS_1 = 0x0104, PVSCSI_REG_OFFSET_LAST_STS_2 = 0x0108, PVSCSI_REG_OFFSET_LAST_STS_3 = 0x010c, PVSCSI_REG_OFFSET_INTR_STATUS = 0x100c, PVSCSI_REG_OFFSET_INTR_MASK = 0x2010, PVSCSI_REG_OFFSET_KICK_NON_RW_IO = 0x3014, PVSCSI_REG_OFFSET_DEBUG = 0x3018, PVSCSI_REG_OFFSET_KICK_RW_IO = 0x4018, }; enum pvscsi_commands { PVSCSI_CMD_FIRST = 0, PVSCSI_CMD_ADAPTER_RESET = 1, PVSCSI_CMD_ISSUE_SCSI = 2, PVSCSI_CMD_SETUP_RINGS = 3, PVSCSI_CMD_RESET_BUS = 4, PVSCSI_CMD_RESET_DEVICE = 5, PVSCSI_CMD_ABORT_CMD = 6, PVSCSI_CMD_CONFIG = 7, PVSCSI_CMD_SETUP_MSG_RING = 8, PVSCSI_CMD_DEVICE_UNPLUG = 9, PVSCSI_CMD_SETUP_REQCALLTHRESHOLD = 10, PVSCSI_CMD_GET_MAX_TARGETS = 11, PVSCSI_CMD_LAST = 12, }; struct pvscsi_cmd_desc_reset_device { uint32_t target; uint8_t lun[8]; }; struct pvscsi_cmd_desc_abort_cmd { uint64_t context; uint32_t target; uint32_t pad; }; #define PVSCSI_SETUP_RINGS_MAX_NUM_PAGES 32 #define PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES 16 struct pvscsi_cmd_desc_setup_rings { uint32_t req_ring_num_pages; uint32_t cmp_ring_num_pages; uint64_t rings_state_ppn; uint64_t req_ring_ppns[PVSCSI_SETUP_RINGS_MAX_NUM_PAGES]; uint64_t cmp_ring_ppns[PVSCSI_SETUP_RINGS_MAX_NUM_PAGES]; }; struct pvscsi_cmd_desc_setup_msg_ring { uint32_t num_pages; uint32_t pad_; uint64_t ring_ppns[PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES]; }; struct pvscsi_rings_state { uint32_t req_prod_idx; uint32_t req_cons_idx; uint32_t req_num_entries_log2; uint32_t cmp_prod_idx; uint32_t cmp_cons_idx; uint32_t cmp_num_entries_log2; uint32_t req_call_threshold; uint8_t _pad[100]; uint32_t msg_prod_idx; uint32_t msg_cons_idx; uint32_t msg_num_entries_log2; }; #define PVSCSI_FLAG_CMD_WITH_SG_LIST (1 << 0) #define PVSCSI_FLAG_CMD_OUT_OF_BAND_CDB (1 << 1) #define PVSCSI_FLAG_CMD_DIR_NONE (1 << 2) #define PVSCSI_FLAG_CMD_DIR_TOHOST (1 << 3) #define PVSCSI_FLAG_CMD_DIR_TODEVICE (1 << 4) #define PVSCSI_FLAG_RESERVED_MASK (~MASK(5)) #define PVSCSI_INTR_CMPL_0 (1 << 0) #define PVSCSI_INTR_CMPL_1 (1 << 1) #define PVSCSI_INTR_CMPL_MASK MASK(2) #define PVSCSI_INTR_MSG_0 (1 << 2) #define PVSCSI_INTR_MSG_1 (1 << 3) #define PVSCSI_INTR_MSG_MASK (MASK(2) << 2) #define PVSCSI_INTR_ALL_SUPPORTED MASK(4) struct pvscsi_ring_req_desc { uint64_t context; uint64_t data_addr; uint64_t data_len; uint64_t sense_addr; uint32_t sense_len; uint32_t flags; uint8_t cdb[16]; uint8_t cdb_len; uint8_t lun[8]; uint8_t tag; uint8_t bus; uint8_t target; uint8_t vcpu_hint; uint8_t unused[59]; }; struct pvscsi_ring_cmp_desc { uint64_t context; uint64_t data_len; uint32_t sense_len; uint16_t host_status; uint16_t scsi_status; uint32_t _pad[2]; }; #define PVSCSI_MAX_SG_ENTRIES_PER_SEGMENT 128 #define PVSCSI_MAX_NUM_SG_SEGMENTS 128 #define PVSCSI_SGE_FLAG_CHAIN_ELEMENT (1 << 0) struct pvscsi_sg_element { uint64_t addr; uint32_t length; uint32_t flags; }; enum pvscsi_msg_type { PVSCSI_MSG_DEV_ADDED = 0, PVSCSI_MSG_DEV_REMOVED = 1, PVSCSI_MSG_LAST = 2, }; struct pvscsi_ring_msg_desc { uint32_t type; uint32_t args[31]; }; struct pvscsi_ring_msg_dev_status_changed { uint32_t type; uint32_t bus; uint32_t target; uint8_t lun[8]; uint32_t pad[27]; }; struct pvscsi_cmd_desc_setup_req_call { uint32_t enable; }; #define PVSCSI_MAX_NUM_PAGES_REQ_RING PVSCSI_SETUP_RINGS_MAX_NUM_PAGES #define PVSCSI_MAX_NUM_PAGES_CMP_RING PVSCSI_SETUP_RINGS_MAX_NUM_PAGES #define PVSCSI_MAX_NUM_PAGES_MSG_RING PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES #define PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE \ (PAGE_SIZE / sizeof(struct pvscsi_ring_req_desc)) #define PVSCSI_MAX_NUM_CMP_ENTRIES_PER_PAGE \ (PAGE_SIZE / sizeof(struct pvscs_ring_cmp_desc)) #define PVSCSI_MAX_NUM_MSG_ENTRIES_PER_PAGE \ (PAGE_SIZE / sizeof(struct pvscsi_ring_msg_desc)) #define PVSCSI_MAX_REQ_QUEUE_DEPTH \ (PVSCSI_MAX_NUM_PAGES_REQ_RING * PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE) #define PVSCSI_MAX_CMP_QUEUE_DEPTH \ (PVSCSI_MAX_NUM_PAGES_CMP_RING * PVSCSI_MAX_NUM_CMP_ENTRIES_PER_PAGE) #define PVSCSI_MAX_QUEUE_DEPTH \ MAX(PVSCSI_MAX_REQ_QUEUE_DEPTH, PVSCSI_MAX_CMP_QUEUE_DEPTH) enum pvscsi_host_status { BTSTAT_SUCCESS = 0x00, BTSTAT_LINKED_COMMAND_COMPLETED = 0x0a, BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG = 0x0b, BTSTAT_DATA_UNDERRUN = 0x0c, BTSTAT_SELTIMEO = 0x11, BTSTAT_DATARUN = 0x12, BTSTAT_BUSFREE = 0x13, BTSTAT_INVPHASE = 0x14, BTSTAT_INVCODE = 0x15, BTSTAT_INVOPCODE = 0x16, BTSTAT_LUNMISMATCH = 0x17, BTSTAT_INVPARAM = 0x1a, BTSTAT_SENSFAILED = 0x1b, BTSTAT_TAGREJECT = 0x1c, BTSTAT_BADMSG = 0x1d, BTSTAT_HAHARDWARE = 0x20, BTSTAT_NORESPONSE = 0x21, BTSTAT_SENTRST = 0x22, BTSTAT_RECVRST = 0x23, BTSTAT_DISCONNECT = 0x24, BTSTAT_BUSRESET = 0x25, BTSTAT_ABORTQUEUE = 0x26, BTSTAT_HASOFTWARE = 0x27, BTSTAT_HATIMEOUT = 0x30, BTSTAT_SCSIPARITY = 0x34, }; #endif /* !_PVSCSI_H_ */
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