Differential D18613 Diff 56227 sys/dev/vmware/pvscsi/pvscsi.h

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sys/dev/vmware/pvscsi/pvscsi.h

Property	Old Value	New Value
svn:eol-style	null	native \ No newline at end of property
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svn:keywords	null	FreeBSD=%H \ No newline at end of property
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				/*-
				* Copyright (c) 2018 VMware, Inc.
				*
				* SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0)
				*
				impUnsubmitted Not Done Inline Actions (picking this at random) Core needs to get its act together and finalize the 'indirection' for license policy and guidelines. I like how this is done, generally, but will have tweaks to suggest for this silly mechanical issue to make sure this indirection is clear and unambiguous. imp: (picking this at random) Core needs to get its act together and finalize the 'indirection' for…
				* $FreeBSD$
				*/

				#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_ */