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