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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/fc4/socal.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/fc4/socal.h')
-rw-r--r--drivers/fc4/socal.h314
1 files changed, 314 insertions, 0 deletions
diff --git a/drivers/fc4/socal.h b/drivers/fc4/socal.h
new file mode 100644
index 0000000..774edf6
--- /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) */
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