diff options
Diffstat (limited to 'drivers/fc4/socal.h')
| -rw-r--r-- | drivers/fc4/socal.h | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/drivers/fc4/socal.h b/drivers/fc4/socal.h new file mode 100644 index 000000000000..774edf68e4d2 --- /dev/null +++ b/drivers/fc4/socal.h @@ -0,0 +1,314 @@ +/* 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) */ |