Linux-2.6.12-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!
diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h
new file mode 100644
index 0000000..089cf56
--- /dev/null
+++ b/include/asm-s390/cio.h
@@ -0,0 +1,281 @@
+/*
+ * include/asm-s390/cio.h
+ * include/asm-s390x/cio.h
+ *
+ * Common interface for I/O on S/390
+ */
+#ifndef _ASM_S390_CIO_H_
+#define _ASM_S390_CIO_H_
+
+#include <linux/spinlock.h>
+#include <asm/types.h>
+
+#ifdef __KERNEL__
+
+#define LPM_ANYPATH 0xff
+
+/*
+ * subchannel status word
+ */
+struct scsw {
+ __u32 key : 4; /* subchannel key */
+ __u32 sctl : 1; /* suspend control */
+ __u32 eswf : 1; /* ESW format */
+ __u32 cc : 2; /* deferred condition code */
+ __u32 fmt : 1; /* format */
+ __u32 pfch : 1; /* prefetch */
+ __u32 isic : 1; /* initial-status interruption control */
+ __u32 alcc : 1; /* address-limit checking control */
+ __u32 ssi : 1; /* supress-suspended interruption */
+ __u32 zcc : 1; /* zero condition code */
+ __u32 ectl : 1; /* extended control */
+ __u32 pno : 1; /* path not operational */
+ __u32 res : 1; /* reserved */
+ __u32 fctl : 3; /* function control */
+ __u32 actl : 7; /* activity control */
+ __u32 stctl : 5; /* status control */
+ __u32 cpa; /* channel program address */
+ __u32 dstat : 8; /* device status */
+ __u32 cstat : 8; /* subchannel status */
+ __u32 count : 16; /* residual count */
+} __attribute__ ((packed));
+
+#define SCSW_FCTL_CLEAR_FUNC 0x1
+#define SCSW_FCTL_HALT_FUNC 0x2
+#define SCSW_FCTL_START_FUNC 0x4
+
+#define SCSW_ACTL_SUSPENDED 0x1
+#define SCSW_ACTL_DEVACT 0x2
+#define SCSW_ACTL_SCHACT 0x4
+#define SCSW_ACTL_CLEAR_PEND 0x8
+#define SCSW_ACTL_HALT_PEND 0x10
+#define SCSW_ACTL_START_PEND 0x20
+#define SCSW_ACTL_RESUME_PEND 0x40
+
+#define SCSW_STCTL_STATUS_PEND 0x1
+#define SCSW_STCTL_SEC_STATUS 0x2
+#define SCSW_STCTL_PRIM_STATUS 0x4
+#define SCSW_STCTL_INTER_STATUS 0x8
+#define SCSW_STCTL_ALERT_STATUS 0x10
+
+#define DEV_STAT_ATTENTION 0x80
+#define DEV_STAT_STAT_MOD 0x40
+#define DEV_STAT_CU_END 0x20
+#define DEV_STAT_BUSY 0x10
+#define DEV_STAT_CHN_END 0x08
+#define DEV_STAT_DEV_END 0x04
+#define DEV_STAT_UNIT_CHECK 0x02
+#define DEV_STAT_UNIT_EXCEP 0x01
+
+#define SCHN_STAT_PCI 0x80
+#define SCHN_STAT_INCORR_LEN 0x40
+#define SCHN_STAT_PROG_CHECK 0x20
+#define SCHN_STAT_PROT_CHECK 0x10
+#define SCHN_STAT_CHN_DATA_CHK 0x08
+#define SCHN_STAT_CHN_CTRL_CHK 0x04
+#define SCHN_STAT_INTF_CTRL_CHK 0x02
+#define SCHN_STAT_CHAIN_CHECK 0x01
+
+/*
+ * architectured values for first sense byte
+ */
+#define SNS0_CMD_REJECT 0x80
+#define SNS_CMD_REJECT SNS0_CMD_REJEC
+#define SNS0_INTERVENTION_REQ 0x40
+#define SNS0_BUS_OUT_CHECK 0x20
+#define SNS0_EQUIPMENT_CHECK 0x10
+#define SNS0_DATA_CHECK 0x08
+#define SNS0_OVERRUN 0x04
+#define SNS0_INCOMPL_DOMAIN 0x01
+
+/*
+ * architectured values for second sense byte
+ */
+#define SNS1_PERM_ERR 0x80
+#define SNS1_INV_TRACK_FORMAT 0x40
+#define SNS1_EOC 0x20
+#define SNS1_MESSAGE_TO_OPER 0x10
+#define SNS1_NO_REC_FOUND 0x08
+#define SNS1_FILE_PROTECTED 0x04
+#define SNS1_WRITE_INHIBITED 0x02
+#define SNS1_INPRECISE_END 0x01
+
+/*
+ * architectured values for third sense byte
+ */
+#define SNS2_REQ_INH_WRITE 0x80
+#define SNS2_CORRECTABLE 0x40
+#define SNS2_FIRST_LOG_ERR 0x20
+#define SNS2_ENV_DATA_PRESENT 0x10
+#define SNS2_INPRECISE_END 0x04
+
+struct ccw1 {
+ __u8 cmd_code; /* command code */
+ __u8 flags; /* flags, like IDA addressing, etc. */
+ __u16 count; /* byte count */
+ __u32 cda; /* data address */
+} __attribute__ ((packed,aligned(8)));
+
+#define CCW_FLAG_DC 0x80
+#define CCW_FLAG_CC 0x40
+#define CCW_FLAG_SLI 0x20
+#define CCW_FLAG_SKIP 0x10
+#define CCW_FLAG_PCI 0x08
+#define CCW_FLAG_IDA 0x04
+#define CCW_FLAG_SUSPEND 0x02
+
+#define CCW_CMD_READ_IPL 0x02
+#define CCW_CMD_NOOP 0x03
+#define CCW_CMD_BASIC_SENSE 0x04
+#define CCW_CMD_TIC 0x08
+#define CCW_CMD_STLCK 0x14
+#define CCW_CMD_SENSE_PGID 0x34
+#define CCW_CMD_SUSPEND_RECONN 0x5B
+#define CCW_CMD_RDC 0x64
+#define CCW_CMD_RELEASE 0x94
+#define CCW_CMD_SET_PGID 0xAF
+#define CCW_CMD_SENSE_ID 0xE4
+#define CCW_CMD_DCTL 0xF3
+
+#define SENSE_MAX_COUNT 0x20
+
+struct erw {
+ __u32 res0 : 3; /* reserved */
+ __u32 auth : 1; /* Authorization check */
+ __u32 pvrf : 1; /* path-verification-required flag */
+ __u32 cpt : 1; /* channel-path timeout */
+ __u32 fsavf : 1; /* Failing storage address validity flag */
+ __u32 cons : 1; /* concurrent-sense */
+ __u32 scavf : 1; /* Secondary ccw address validity flag */
+ __u32 fsaf : 1; /* Failing storage address format */
+ __u32 scnt : 6; /* sense count if cons == 1 */
+ __u32 res16 : 16; /* reserved */
+} __attribute__ ((packed));
+
+/*
+ * subchannel logout area
+ */
+struct sublog {
+ __u32 res0 : 1; /* reserved */
+ __u32 esf : 7; /* extended status flags */
+ __u32 lpum : 8; /* last path used mask */
+ __u32 arep : 1; /* ancillary report */
+ __u32 fvf : 5; /* field-validity flags */
+ __u32 sacc : 2; /* storage access code */
+ __u32 termc : 2; /* termination code */
+ __u32 devsc : 1; /* device-status check */
+ __u32 serr : 1; /* secondary error */
+ __u32 ioerr : 1; /* i/o-error alert */
+ __u32 seqc : 3; /* sequence code */
+} __attribute__ ((packed));
+
+/*
+ * Format 0 Extended Status Word (ESW)
+ */
+struct esw0 {
+ struct sublog sublog; /* subchannel logout */
+ struct erw erw; /* extended report word */
+ __u32 faddr[2]; /* failing storage address */
+ __u32 saddr; /* secondary ccw address */
+} __attribute__ ((packed));
+
+/*
+ * Format 1 Extended Status Word (ESW)
+ */
+struct esw1 {
+ __u8 zero0; /* reserved zeros */
+ __u8 lpum; /* last path used mask */
+ __u16 zero16; /* reserved zeros */
+ struct erw erw; /* extended report word */
+ __u32 zeros[3]; /* 2 fullwords of zeros */
+} __attribute__ ((packed));
+
+/*
+ * Format 2 Extended Status Word (ESW)
+ */
+struct esw2 {
+ __u8 zero0; /* reserved zeros */
+ __u8 lpum; /* last path used mask */
+ __u16 dcti; /* device-connect-time interval */
+ struct erw erw; /* extended report word */
+ __u32 zeros[3]; /* 2 fullwords of zeros */
+} __attribute__ ((packed));
+
+/*
+ * Format 3 Extended Status Word (ESW)
+ */
+struct esw3 {
+ __u8 zero0; /* reserved zeros */
+ __u8 lpum; /* last path used mask */
+ __u16 res; /* reserved */
+ struct erw erw; /* extended report word */
+ __u32 zeros[3]; /* 2 fullwords of zeros */
+} __attribute__ ((packed));
+
+/*
+ * interruption response block
+ */
+struct irb {
+ struct scsw scsw; /* subchannel status word */
+ union { /* extended status word, 4 formats */
+ struct esw0 esw0;
+ struct esw1 esw1;
+ struct esw2 esw2;
+ struct esw3 esw3;
+ } esw;
+ __u8 ecw[32]; /* extended control word */
+} __attribute__ ((packed,aligned(4)));
+
+/*
+ * command information word (CIW) layout
+ */
+struct ciw {
+ __u32 et : 2; /* entry type */
+ __u32 reserved : 2; /* reserved */
+ __u32 ct : 4; /* command type */
+ __u32 cmd : 8; /* command */
+ __u32 count : 16; /* coun */
+} __attribute__ ((packed));
+
+#define CIW_TYPE_RCD 0x0 /* read configuration data */
+#define CIW_TYPE_SII 0x1 /* set interface identifier */
+#define CIW_TYPE_RNI 0x2 /* read node identifier */
+
+/*
+ * Flags used as input parameters for do_IO()
+ */
+#define DOIO_ALLOW_SUSPEND 0x0001 /* allow for channel prog. suspend */
+#define DOIO_DENY_PREFETCH 0x0002 /* don't allow for CCW prefetch */
+#define DOIO_SUPPRESS_INTER 0x0004 /* suppress intermediate inter. */
+ /* ... for suspended CCWs */
+/* Device or subchannel gone. */
+#define CIO_GONE 0x0001
+/* No path to device. */
+#define CIO_NO_PATH 0x0002
+/* Device has appeared. */
+#define CIO_OPER 0x0004
+/* Sick revalidation of device. */
+#define CIO_REVALIDATE 0x0008
+
+struct diag210 {
+ __u16 vrdcdvno : 16; /* device number (input) */
+ __u16 vrdclen : 16; /* data block length (input) */
+ __u32 vrdcvcla : 8; /* virtual device class (output) */
+ __u32 vrdcvtyp : 8; /* virtual device type (output) */
+ __u32 vrdcvsta : 8; /* virtual device status (output) */
+ __u32 vrdcvfla : 8; /* virtual device flags (output) */
+ __u32 vrdcrccl : 8; /* real device class (output) */
+ __u32 vrdccrty : 8; /* real device type (output) */
+ __u32 vrdccrmd : 8; /* real device model (output) */
+ __u32 vrdccrft : 8; /* real device feature (output) */
+} __attribute__ ((packed,aligned(4)));
+
+extern int diag210(struct diag210 *addr);
+
+extern void wait_cons_dev(void);
+
+extern void clear_all_subchannels(void);
+
+#endif
+
+#endif