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/* socal.h: Definitions for Sparc SUNW,socal (SOC+) Fibre Channel Sbus driver.
*
* Copyright (C) 1998,1999 Jakub Jelinek (jj@ultra.linux.cz)
*/
#ifndef __SOCAL_H
#define __SOCAL_H
#include "fc.h"
#include "fcp.h"
#include "fcp_impl.h"
/* Hardware register offsets and constants first {{{ */
#define CFG 0x00UL
#define SAE 0x04UL
#define CMD 0x08UL
#define IMASK 0x0cUL
#define REQP 0x10UL
#define RESP 0x14UL
/* Config Register */
#define SOCAL_CFG_EXT_RAM_BANK_MASK 0x07000000
#define SOCAL_CFG_EEPROM_BANK_MASK 0x00030000
#define SOCAL_CFG_BURST64_MASK 0x00000700
#define SOCAL_CFG_SBUS_PARITY_TEST 0x00000020
#define SOCAL_CFG_SBUS_PARITY_CHECK 0x00000010
#define SOCAL_CFG_SBUS_ENHANCED 0x00000008
#define SOCAL_CFG_BURST_MASK 0x00000007
/* Bursts */
#define SOCAL_CFG_BURST_4 0x00000000
#define SOCAL_CFG_BURST_8 0x00000003
#define SOCAL_CFG_BURST_16 0x00000004
#define SOCAL_CFG_BURST_32 0x00000005
#define SOCAL_CFG_BURST_64 0x00000006
#define SOCAL_CFG_BURST_128 0x00000007
/* Slave Access Error Register */
#define SOCAL_SAE_ALIGNMENT 0x00000004
#define SOCAL_SAE_UNSUPPORTED 0x00000002
#define SOCAL_SAE_PARITY 0x00000001
/* Command & Status Register */
#define SOCAL_CMD_RSP_QALL 0x000f0000
#define SOCAL_CMD_RSP_Q0 0x00010000
#define SOCAL_CMD_RSP_Q1 0x00020000
#define SOCAL_CMD_RSP_Q2 0x00040000
#define SOCAL_CMD_RSP_Q3 0x00080000
#define SOCAL_CMD_REQ_QALL 0x00000f00
#define SOCAL_CMD_REQ_Q0 0x00000100
#define SOCAL_CMD_REQ_Q1 0x00000200
#define SOCAL_CMD_REQ_Q2 0x00000400
#define SOCAL_CMD_REQ_Q3 0x00000800
#define SOCAL_CMD_SAE 0x00000080
#define SOCAL_CMD_INTR_PENDING 0x00000008
#define SOCAL_CMD_NON_QUEUED 0x00000004
#define SOCAL_CMD_IDLE 0x00000002
#define SOCAL_CMD_SOFT_RESET 0x00000001
/* Interrupt Mask Register */
#define SOCAL_IMASK_RSP_QALL 0x000f0000
#define SOCAL_IMASK_RSP_Q0 0x00010000
#define SOCAL_IMASK_RSP_Q1 0x00020000
#define SOCAL_IMASK_RSP_Q2 0x00040000
#define SOCAL_IMASK_RSP_Q3 0x00080000
#define SOCAL_IMASK_REQ_QALL 0x00000f00
#define SOCAL_IMASK_REQ_Q0 0x00000100
#define SOCAL_IMASK_REQ_Q1 0x00000200
#define SOCAL_IMASK_REQ_Q2 0x00000400
#define SOCAL_IMASK_REQ_Q3 0x00000800
#define SOCAL_IMASK_SAE 0x00000080
#define SOCAL_IMASK_NON_QUEUED 0x00000004
#define SOCAL_INTR(s, cmd) \
(((cmd & SOCAL_CMD_RSP_QALL) | ((~cmd) & SOCAL_CMD_REQ_QALL)) \
& s->imask)
#define SOCAL_SETIMASK(s, i) \
do { (s)->imask = (i); \
sbus_writel((i), (s)->regs + IMASK); \
} while (0)
#define SOCAL_MAX_EXCHANGES 1024
/* XRAM
*
* This is a 64KB register area.
* From the documentation, it seems like it is finally able to cope
* at least with 1,2,4 byte accesses for read and 2,4 byte accesses for write.
*/
/* Circular Queue */
#define SOCAL_CQ_REQ_OFFSET 0x200
#define SOCAL_CQ_RSP_OFFSET 0x220
typedef struct {
u32 address;
u8 in;
u8 out;
u8 last;
u8 seqno;
} socal_hw_cq;
#define SOCAL_PORT_A 0x0000 /* From/To Port A */
#define SOCAL_PORT_B 0x0001 /* From/To Port A */
#define SOCAL_FC_HDR 0x0002 /* Contains FC Header */
#define SOCAL_NORSP 0x0004 /* Don't generate response nor interrupt */
#define SOCAL_NOINT 0x0008 /* Generate response but not interrupt */
#define SOCAL_XFERRDY 0x0010 /* Generate XFERRDY */
#define SOCAL_IGNOREPARAM 0x0020 /* Ignore PARAM field in the FC header */
#define SOCAL_COMPLETE 0x0040 /* Command completed */
#define SOCAL_UNSOLICITED 0x0080 /* For request this is the packet to establish unsolicited pools, */
/* for rsp this is unsolicited packet */
#define SOCAL_STATUS 0x0100 /* State change (on/off line) */
#define SOCAL_RSP_HDR 0x0200 /* Return frame header in any case */
typedef struct {
u32 token;
u16 flags;
u8 class;
u8 segcnt;
u32 bytecnt;
} socal_hdr;
typedef struct {
u32 base;
u32 count;
} socal_data;
#define SOCAL_CQTYPE_NOP 0x00
#define SOCAL_CQTYPE_OUTBOUND 0x01
#define SOCAL_CQTYPE_INBOUND 0x02
#define SOCAL_CQTYPE_SIMPLE 0x03
#define SOCAL_CQTYPE_IO_WRITE 0x04
#define SOCAL_CQTYPE_IO_READ 0x05
#define SOCAL_CQTYPE_UNSOLICITED 0x06
#define SOCAL_CQTYPE_BYPASS_DEV 0x06
#define SOCAL_CQTYPE_DIAG 0x07
#define SOCAL_CQTYPE_OFFLINE 0x08
#define SOCAL_CQTYPE_ADD_POOL 0x09
#define SOCAL_CQTYPE_DELETE_POOL 0x0a
#define SOCAL_CQTYPE_ADD_BUFFER 0x0b
#define SOCAL_CQTYPE_ADD_POOL_BUFFER 0x0c
#define SOCAL_CQTYPE_REQUEST_ABORT 0x0d
#define SOCAL_CQTYPE_REQUEST_LIP 0x0e
#define SOCAL_CQTYPE_REPORT_MAP 0x0f
#define SOCAL_CQTYPE_RESPONSE 0x10
#define SOCAL_CQTYPE_INLINE 0x20
#define SOCAL_CQFLAGS_CONT 0x01
#define SOCAL_CQFLAGS_FULL 0x02
#define SOCAL_CQFLAGS_BADHDR 0x04
#define SOCAL_CQFLAGS_BADPKT 0x08
typedef struct {
socal_hdr shdr;
socal_data data[3];
fc_hdr fchdr;
u8 count;
u8 type;
u8 flags;
u8 seqno;
} socal_req;
#define SOCAL_OK 0
#define SOCAL_P_RJT 2
#define SOCAL_F_RJT 3
#define SOCAL_P_BSY 4
#define SOCAL_F_BSY 5
#define SOCAL_ONLINE 0x10
#define SOCAL_OFFLINE 0x11
#define SOCAL_TIMEOUT 0x12
#define SOCAL_OVERRUN 0x13
#define SOCAL_ONLINE_LOOP 0x14
#define SOCAL_OLD_PORT 0x15
#define SOCAL_AL_PORT 0x16
#define SOCAL_UNKOWN_CQ_TYPE 0x20
#define SOCAL_BAD_SEG_CNT 0x21
#define SOCAL_MAX_XCHG_EXCEEDED 0x22
#define SOCAL_BAD_XID 0x23
#define SOCAL_XCHG_BUSY 0x24
#define SOCAL_BAD_POOL_ID 0x25
#define SOCAL_INSUFFICIENT_CQES 0x26
#define SOCAL_ALLOC_FAIL 0x27
#define SOCAL_BAD_SID 0x28
#define SOCAL_NO_SEG_INIT 0x29
#define SOCAL_BAD_DID 0x2a
#define SOCAL_ABORTED 0x30
#define SOCAL_ABORT_FAILED 0x31
typedef struct {
socal_hdr shdr;
u32 status;
socal_data data;
u8 xxx1[10];
u16 ncmds;
fc_hdr fchdr;
u8 count;
u8 type;
u8 flags;
u8 seqno;
} socal_rsp;
typedef struct {
socal_hdr shdr;
u8 xxx1[48];
u8 count;
u8 type;
u8 flags;
u8 seqno;
} socal_cmdonly;
#define SOCAL_DIAG_NOP 0x00
#define SOCAL_DIAG_INT_LOOP 0x01
#define SOCAL_DIAG_EXT_LOOP 0x02
#define SOCAL_DIAG_REM_LOOP 0x03
#define SOCAL_DIAG_XRAM_TEST 0x04
#define SOCAL_DIAG_SOC_TEST 0x05
#define SOCAL_DIAG_HCB_TEST 0x06
#define SOCAL_DIAG_SOCLB_TEST 0x07
#define SOCAL_DIAG_SRDSLB_TEST 0x08
#define SOCAL_DIAG_EXTOE_TEST 0x09
typedef struct {
socal_hdr shdr;
u32 cmd;
u8 xxx1[44];
u8 count;
u8 type;
u8 flags;
u8 seqno;
} socal_diag_req;
#define SOCAL_POOL_MASK_RCTL 0x800000
#define SOCAL_POOL_MASK_DID 0x700000
#define SOCAL_POOL_MASK_SID 0x070000
#define SOCAL_POOL_MASK_TYPE 0x008000
#define SOCAL_POOL_MASK_F_CTL 0x007000
#define SOCAL_POOL_MASK_SEQ_ID 0x000800
#define SOCAL_POOL_MASK_D_CTL 0x000400
#define SOCAL_POOL_MASK_SEQ_CNT 0x000300
#define SOCAL_POOL_MASK_OX_ID 0x0000f0
#define SOCAL_POOL_MASK_PARAM 0x00000f
typedef struct {
socal_hdr shdr;
u32 pool_id;
u32 header_mask;
u32 buf_size;
u32 entries;
u8 xxx1[8];
fc_hdr fchdr;
u8 count;
u8 type;
u8 flags;
u8 seqno;
} socal_pool_req;
/* }}} */
/* Now our software structures and constants we use to drive the beast {{{ */
#define SOCAL_CQ_REQ0_SIZE 4
#define SOCAL_CQ_REQ1_SIZE 256
#define SOCAL_CQ_RSP0_SIZE 8
#define SOCAL_CQ_RSP1_SIZE 4
#define SOCAL_CQ_RSP2_SIZE 4
#define SOCAL_SOLICITED_RSP_Q 0
#define SOCAL_SOLICITED_BAD_RSP_Q 1
#define SOCAL_UNSOLICITED_RSP_Q 2
struct socal;
typedef struct {
/* This must come first */
fc_channel fc;
struct socal *s;
u16 flags;
u16 mask;
} socal_port;
typedef struct {
socal_hw_cq __iomem *hw_cq; /* Related XRAM cq */
socal_req *pool;
u8 in;
u8 out;
u8 last;
u8 seqno;
} socal_cq;
struct socal {
spinlock_t lock;
socal_port port[2]; /* Every SOCAL has one or two FC ports */
socal_cq req[4]; /* Request CQs */
socal_cq rsp[4]; /* Response CQs */
int socal_no;
void __iomem *regs;
void __iomem *xram;
void __iomem *eeprom;
fc_wwn wwn;
u32 imask; /* Our copy of regs->imask */
u32 cfg; /* Our copy of regs->cfg */
char serv_params[80];
struct socal *next;
int curr_port; /* Which port will have priority to fcp_queue_empty */
socal_req * req_cpu;
u32 req_dvma;
};
/* }}} */
#endif /* !(__SOCAL_H) */
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