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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2016 Nexenta Systems, Inc.
* Copyright 2022 RackTop Systems, Inc.
*/
#ifndef _PVSCSI_VAR_H_
#define _PVSCSI_VAR_H_
typedef struct pvscsi_dma_buf {
ddi_dma_handle_t dmah;
caddr_t addr;
uint64_t pa;
ddi_acc_handle_t acch;
} pvscsi_dma_buf_t;
#define PVSCSI_MAX_IO_PAGES 256
#define PVSCSI_MAX_IO_SIZE (PVSCSI_MAX_IO_PAGES * PAGE_SIZE)
#define PVSCSI_MAX_SG_SIZE (PVSCSI_MAX_IO_PAGES + 1)
typedef struct pvscsi_cmd {
struct scsi_pkt *pkt;
struct scsi_arq_status cmd_scb;
uint8_t cdb[SCSI_CDB_SIZE];
size_t cdblen;
uint8_t tag;
uint8_t scsi_status;
uint32_t host_status;
uint64_t transferred;
boolean_t poll;
int target;
int lun;
uint32_t ctx;
list_node_t queue_node;
clock_t timeout;
clock_t start;
struct pvscsi_softc *pvs;
struct pvscsi_cmd *next_cmd;
ddi_dma_handle_t sgl_dmah;
ddi_acc_handle_t sgl_acch;
uint64_t sgl_pa;
struct PVSCSISGElement *sgl;
uint64_t arq_pa;
uint8_t arq_sense[SENSE_LENGTH];
ddi_dma_handle_t arq_dmah;
uint32_t dma_dir;
uint8_t done;
uint8_t expired;
} pvscsi_cmd_t;
typedef struct pvscsi_msg {
struct pvscsi_softc *pvs;
int type;
int target;
int lun;
} pvscsi_msg_t;
typedef struct pvscsi_device {
list_node_t node;
struct pvscsi_softc *pvs;
int target;
int lun;
} pvscsi_device_t;
typedef struct pvscsi_softc {
dev_info_t *dip;
scsi_hba_tran_t *tran;
scsi_hba_tgtmap_t *tgtmap;
pvscsi_dma_buf_t state_buf;
pvscsi_dma_buf_t req_ring_buf;
uint_t req_pages;
uint_t req_depth;
pvscsi_dma_buf_t cmp_ring_buf;
uint_t cmp_pages;
pvscsi_dma_buf_t msg_ring_buf;
uint_t msg_pages;
ddi_acc_handle_t mmio_handle;
caddr_t mmio_base;
int intr_cnt;
int intr_pri;
int intr_type;
uint32_t max_targets;
ddi_intr_handle_t intr_handles[PVSCSI_MAX_INTRS];
list_t cmd_queue;
list_t devices;
kmutex_t lock;
ddi_taskq_t *tq;
timeout_id_t timeout;
boolean_t detach;
} pvscsi_softc_t;
#define REQ_RING(pvs) \
((struct PVSCSIRingReqDesc *)((pvs)->req_ring_buf.addr))
#define CMP_RING(pvs) \
((struct PVSCSIRingCmpDesc *)((pvs)->cmp_ring_buf.addr))
#define MSG_RING(pvs) \
((struct PVSCSIRingMsgDesc *)((pvs)->msg_ring_buf.addr))
#define RINGS_STATE(pvs) \
((struct PVSCSIRingsState *)((pvs)->state_buf.addr))
#define PVSCSI_MAXTGTS 16
#define PAGE_SIZE 4096
#define PAGE_SHIFT 12
#define PVSCSI_DEFAULT_NUM_PAGES_PER_RING 8
#define PVSCSI_DEFAULT_NUM_PAGES_MSG_RING 1
#endif /* _PVSCSI_VAR_H_ */
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