i2o: move to staging

The I2O layer deals with a technology that to say the least didn't catch on
in the market.

The only relevant products are some of the AMI MegaRAID - which supported I2O
and its native mode (The native mode is faster and runs on Linux), an
obscure crypto ethernet card that's now so many years out of date nobody
would use it, the old DPT controllers, which speak their own dialect and
have their own driver - and ermm.. thats about it.

We also know the code isn't in good shape as recently a patch was proposed
and queried as buggy, which in turn showed the existing code was broken
already by prior "clean up" and nobody had noticed that either.

It's coding style robot code nothing more. Like some forgotten corridor
cleaned relentlessly by a lost Roomba but where no user has trodden in years.

Move it to staging and then to /dev/null.

The headers remain as they are shared with dpt_i2o.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 472 insertions, 0 deletions

diff --git a/drivers/staging/i2o/debug.c b/drivers/staging/i2o/debug.c
new file mode 100644
index 000000000000..7a16114ed8ea
--- /dev/null
+++ b/drivers/staging/i2o/debug.c
@@ -0,0 +1,472 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include "i2o.h"
+
+static void i2o_report_util_cmd(u8 cmd);
+static void i2o_report_exec_cmd(u8 cmd);
+static void i2o_report_fail_status(u8 req_status, u32 * msg);
+static void i2o_report_common_status(u8 req_status);
+static void i2o_report_common_dsc(u16 detailed_status);
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Report Cmd name, Request status, Detailed Status.
+ */
+void i2o_report_status(const char *severity, const char *str,
+		       struct i2o_message *m)
+{
+	u32 *msg = (u32 *) m;
+	u8 cmd = (msg[1] >> 24) & 0xFF;
+	u8 req_status = (msg[4] >> 24) & 0xFF;
+	u16 detailed_status = msg[4] & 0xFFFF;
+
+	if (cmd == I2O_CMD_UTIL_EVT_REGISTER)
+		return;		// No status in this reply
+
+	printk("%s%s: ", severity, str);
+
+	if (cmd < 0x1F)		// Utility cmd
+		i2o_report_util_cmd(cmd);
+
+	else if (cmd >= 0xA0 && cmd <= 0xEF)	// Executive cmd
+		i2o_report_exec_cmd(cmd);
+	else
+		printk("Cmd = %0#2x, ", cmd);	// Other cmds
+
+	if (msg[0] & MSG_FAIL) {
+		i2o_report_fail_status(req_status, msg);
+		return;
+	}
+
+	i2o_report_common_status(req_status);
+
+	if (cmd < 0x1F || (cmd >= 0xA0 && cmd <= 0xEF))
+		i2o_report_common_dsc(detailed_status);
+	else
+		printk(" / DetailedStatus = %0#4x.\n",
+		       detailed_status);
+}
+
+/* Used to dump a message to syslog during debugging */
+void i2o_dump_message(struct i2o_message *m)
+{
+#ifdef DEBUG
+	u32 *msg = (u32 *) m;
+	int i;
+	printk(KERN_INFO "Dumping I2O message size %d @ %p\n",
+	       msg[0] >> 16 & 0xffff, msg);
+	for (i = 0; i < ((msg[0] >> 16) & 0xffff); i++)
+		printk(KERN_INFO "  msg[%d] = %0#10x\n", i, msg[i]);
+#endif
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following fail status are common to all classes.
+ * The preserved message must be handled in the reply handler.
+ */
+static void i2o_report_fail_status(u8 req_status, u32 * msg)
+{
+	static char *FAIL_STATUS[] = {
+		"0x80",		/* not used */
+		"SERVICE_SUSPENDED",	/* 0x81 */
+		"SERVICE_TERMINATED",	/* 0x82 */
+		"CONGESTION",
+		"FAILURE",
+		"STATE_ERROR",
+		"TIME_OUT",
+		"ROUTING_FAILURE",
+		"INVALID_VERSION",
+		"INVALID_OFFSET",
+		"INVALID_MSG_FLAGS",
+		"FRAME_TOO_SMALL",
+		"FRAME_TOO_LARGE",
+		"INVALID_TARGET_ID",
+		"INVALID_INITIATOR_ID",
+		"INVALID_INITIATOR_CONTEX",	/* 0x8F */
+		"UNKNOWN_FAILURE"	/* 0xFF */
+	};
+
+	if (req_status == I2O_FSC_TRANSPORT_UNKNOWN_FAILURE)
+		printk("TRANSPORT_UNKNOWN_FAILURE (%0#2x).\n",
+		       req_status);
+	else
+		printk("TRANSPORT_%s.\n",
+		       FAIL_STATUS[req_status & 0x0F]);
+
+	/* Dump some details */
+
+	printk(KERN_ERR "  InitiatorId = %d, TargetId = %d\n",
+	       (msg[1] >> 12) & 0xFFF, msg[1] & 0xFFF);
+	printk(KERN_ERR "  LowestVersion = 0x%02X, HighestVersion = 0x%02X\n",
+	       (msg[4] >> 8) & 0xFF, msg[4] & 0xFF);
+	printk(KERN_ERR "  FailingHostUnit = 0x%04X,  FailingIOP = 0x%03X\n",
+	       msg[5] >> 16, msg[5] & 0xFFF);
+
+	printk(KERN_ERR "  Severity:  0x%02X\n", (msg[4] >> 16) & 0xFF);
+	if (msg[4] & (1 << 16))
+		printk(KERN_DEBUG "(FormatError), "
+		       "this msg can never be delivered/processed.\n");
+	if (msg[4] & (1 << 17))
+		printk(KERN_DEBUG "(PathError), "
+		       "this msg can no longer be delivered/processed.\n");
+	if (msg[4] & (1 << 18))
+		printk(KERN_DEBUG "(PathState), "
+		       "the system state does not allow delivery.\n");
+	if (msg[4] & (1 << 19))
+		printk(KERN_DEBUG
+		       "(Congestion), resources temporarily not available;"
+		       "do not retry immediately.\n");
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following reply status are common to all classes.
+ */
+static void i2o_report_common_status(u8 req_status)
+{
+	static char *REPLY_STATUS[] = {
+		"SUCCESS",
+		"ABORT_DIRTY",
+		"ABORT_NO_DATA_TRANSFER",
+		"ABORT_PARTIAL_TRANSFER",
+		"ERROR_DIRTY",
+		"ERROR_NO_DATA_TRANSFER",
+		"ERROR_PARTIAL_TRANSFER",
+		"PROCESS_ABORT_DIRTY",
+		"PROCESS_ABORT_NO_DATA_TRANSFER",
+		"PROCESS_ABORT_PARTIAL_TRANSFER",
+		"TRANSACTION_ERROR",
+		"PROGRESS_REPORT"
+	};
+
+	if (req_status >= ARRAY_SIZE(REPLY_STATUS))
+		printk("RequestStatus = %0#2x", req_status);
+	else
+		printk("%s", REPLY_STATUS[req_status]);
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following detailed status are valid  for executive class,
+ * utility class, DDM class and for transaction error replies.
+ */
+static void i2o_report_common_dsc(u16 detailed_status)
+{
+	static char *COMMON_DSC[] = {
+		"SUCCESS",
+		"0x01",		// not used
+		"BAD_KEY",
+		"TCL_ERROR",
+		"REPLY_BUFFER_FULL",
+		"NO_SUCH_PAGE",
+		"INSUFFICIENT_RESOURCE_SOFT",
+		"INSUFFICIENT_RESOURCE_HARD",
+		"0x08",		// not used
+		"CHAIN_BUFFER_TOO_LARGE",
+		"UNSUPPORTED_FUNCTION",
+		"DEVICE_LOCKED",
+		"DEVICE_RESET",
+		"INAPPROPRIATE_FUNCTION",
+		"INVALID_INITIATOR_ADDRESS",
+		"INVALID_MESSAGE_FLAGS",
+		"INVALID_OFFSET",
+		"INVALID_PARAMETER",
+		"INVALID_REQUEST",
+		"INVALID_TARGET_ADDRESS",
+		"MESSAGE_TOO_LARGE",
+		"MESSAGE_TOO_SMALL",
+		"MISSING_PARAMETER",
+		"TIMEOUT",
+		"UNKNOWN_ERROR",
+		"UNKNOWN_FUNCTION",
+		"UNSUPPORTED_VERSION",
+		"DEVICE_BUSY",
+		"DEVICE_NOT_AVAILABLE"
+	};
+
+	if (detailed_status > I2O_DSC_DEVICE_NOT_AVAILABLE)
+		printk(" / DetailedStatus = %0#4x.\n",
+		       detailed_status);
+	else
+		printk(" / %s.\n", COMMON_DSC[detailed_status]);
+}
+
+/*
+ * Used for error reporting/debugging purposes
+ */
+static void i2o_report_util_cmd(u8 cmd)
+{
+	switch (cmd) {
+	case I2O_CMD_UTIL_NOP:
+		printk("UTIL_NOP, ");
+		break;
+	case I2O_CMD_UTIL_ABORT:
+		printk("UTIL_ABORT, ");
+		break;
+	case I2O_CMD_UTIL_CLAIM:
+		printk("UTIL_CLAIM, ");
+		break;
+	case I2O_CMD_UTIL_RELEASE:
+		printk("UTIL_CLAIM_RELEASE, ");
+		break;
+	case I2O_CMD_UTIL_CONFIG_DIALOG:
+		printk("UTIL_CONFIG_DIALOG, ");
+		break;
+	case I2O_CMD_UTIL_DEVICE_RESERVE:
+		printk("UTIL_DEVICE_RESERVE, ");
+		break;
+	case I2O_CMD_UTIL_DEVICE_RELEASE:
+		printk("UTIL_DEVICE_RELEASE, ");
+		break;
+	case I2O_CMD_UTIL_EVT_ACK:
+		printk("UTIL_EVENT_ACKNOWLEDGE, ");
+		break;
+	case I2O_CMD_UTIL_EVT_REGISTER:
+		printk("UTIL_EVENT_REGISTER, ");
+		break;
+	case I2O_CMD_UTIL_LOCK:
+		printk("UTIL_LOCK, ");
+		break;
+	case I2O_CMD_UTIL_LOCK_RELEASE:
+		printk("UTIL_LOCK_RELEASE, ");
+		break;
+	case I2O_CMD_UTIL_PARAMS_GET:
+		printk("UTIL_PARAMS_GET, ");
+		break;
+	case I2O_CMD_UTIL_PARAMS_SET:
+		printk("UTIL_PARAMS_SET, ");
+		break;
+	case I2O_CMD_UTIL_REPLY_FAULT_NOTIFY:
+		printk("UTIL_REPLY_FAULT_NOTIFY, ");
+		break;
+	default:
+		printk("Cmd = %0#2x, ", cmd);
+	}
+}
+
+/*
+ * Used for error reporting/debugging purposes
+ */
+static void i2o_report_exec_cmd(u8 cmd)
+{
+	switch (cmd) {
+	case I2O_CMD_ADAPTER_ASSIGN:
+		printk("EXEC_ADAPTER_ASSIGN, ");
+		break;
+	case I2O_CMD_ADAPTER_READ:
+		printk("EXEC_ADAPTER_READ, ");
+		break;
+	case I2O_CMD_ADAPTER_RELEASE:
+		printk("EXEC_ADAPTER_RELEASE, ");
+		break;
+	case I2O_CMD_BIOS_INFO_SET:
+		printk("EXEC_BIOS_INFO_SET, ");
+		break;
+	case I2O_CMD_BOOT_DEVICE_SET:
+		printk("EXEC_BOOT_DEVICE_SET, ");
+		break;
+	case I2O_CMD_CONFIG_VALIDATE:
+		printk("EXEC_CONFIG_VALIDATE, ");
+		break;
+	case I2O_CMD_CONN_SETUP:
+		printk("EXEC_CONN_SETUP, ");
+		break;
+	case I2O_CMD_DDM_DESTROY:
+		printk("EXEC_DDM_DESTROY, ");
+		break;
+	case I2O_CMD_DDM_ENABLE:
+		printk("EXEC_DDM_ENABLE, ");
+		break;
+	case I2O_CMD_DDM_QUIESCE:
+		printk("EXEC_DDM_QUIESCE, ");
+		break;
+	case I2O_CMD_DDM_RESET:
+		printk("EXEC_DDM_RESET, ");
+		break;
+	case I2O_CMD_DDM_SUSPEND:
+		printk("EXEC_DDM_SUSPEND, ");
+		break;
+	case I2O_CMD_DEVICE_ASSIGN:
+		printk("EXEC_DEVICE_ASSIGN, ");
+		break;
+	case I2O_CMD_DEVICE_RELEASE:
+		printk("EXEC_DEVICE_RELEASE, ");
+		break;
+	case I2O_CMD_HRT_GET:
+		printk("EXEC_HRT_GET, ");
+		break;
+	case I2O_CMD_ADAPTER_CLEAR:
+		printk("EXEC_IOP_CLEAR, ");
+		break;
+	case I2O_CMD_ADAPTER_CONNECT:
+		printk("EXEC_IOP_CONNECT, ");
+		break;
+	case I2O_CMD_ADAPTER_RESET:
+		printk("EXEC_IOP_RESET, ");
+		break;
+	case I2O_CMD_LCT_NOTIFY:
+		printk("EXEC_LCT_NOTIFY, ");
+		break;
+	case I2O_CMD_OUTBOUND_INIT:
+		printk("EXEC_OUTBOUND_INIT, ");
+		break;
+	case I2O_CMD_PATH_ENABLE:
+		printk("EXEC_PATH_ENABLE, ");
+		break;
+	case I2O_CMD_PATH_QUIESCE:
+		printk("EXEC_PATH_QUIESCE, ");
+		break;
+	case I2O_CMD_PATH_RESET:
+		printk("EXEC_PATH_RESET, ");
+		break;
+	case I2O_CMD_STATIC_MF_CREATE:
+		printk("EXEC_STATIC_MF_CREATE, ");
+		break;
+	case I2O_CMD_STATIC_MF_RELEASE:
+		printk("EXEC_STATIC_MF_RELEASE, ");
+		break;
+	case I2O_CMD_STATUS_GET:
+		printk("EXEC_STATUS_GET, ");
+		break;
+	case I2O_CMD_SW_DOWNLOAD:
+		printk("EXEC_SW_DOWNLOAD, ");
+		break;
+	case I2O_CMD_SW_UPLOAD:
+		printk("EXEC_SW_UPLOAD, ");
+		break;
+	case I2O_CMD_SW_REMOVE:
+		printk("EXEC_SW_REMOVE, ");
+		break;
+	case I2O_CMD_SYS_ENABLE:
+		printk("EXEC_SYS_ENABLE, ");
+		break;
+	case I2O_CMD_SYS_MODIFY:
+		printk("EXEC_SYS_MODIFY, ");
+		break;
+	case I2O_CMD_SYS_QUIESCE:
+		printk("EXEC_SYS_QUIESCE, ");
+		break;
+	case I2O_CMD_SYS_TAB_SET:
+		printk("EXEC_SYS_TAB_SET, ");
+		break;
+	default:
+		printk("Cmd = %#02x, ", cmd);
+	}
+}
+
+void i2o_debug_state(struct i2o_controller *c)
+{
+	printk(KERN_INFO "%s: State = ", c->name);
+	switch (((i2o_status_block *) c->status_block.virt)->iop_state) {
+	case 0x01:
+		printk("INIT\n");
+		break;
+	case 0x02:
+		printk("RESET\n");
+		break;
+	case 0x04:
+		printk("HOLD\n");
+		break;
+	case 0x05:
+		printk("READY\n");
+		break;
+	case 0x08:
+		printk("OPERATIONAL\n");
+		break;
+	case 0x10:
+		printk("FAILED\n");
+		break;
+	case 0x11:
+		printk("FAULTED\n");
+		break;
+	default:
+		printk("%x (unknown !!)\n",
+		       ((i2o_status_block *) c->status_block.virt)->iop_state);
+	}
+};
+
+void i2o_dump_hrt(struct i2o_controller *c)
+{
+	u32 *rows = (u32 *) c->hrt.virt;
+	u8 *p = (u8 *) c->hrt.virt;
+	u8 *d;
+	int count;
+	int length;
+	int i;
+	int state;
+
+	if (p[3] != 0) {
+		printk(KERN_ERR
+		       "%s: HRT table for controller is too new a version.\n",
+		       c->name);
+		return;
+	}
+
+	count = p[0] | (p[1] << 8);
+	length = p[2];
+
+	printk(KERN_INFO "%s: HRT has %d entries of %d bytes each.\n",
+	       c->name, count, length << 2);
+
+	rows += 2;
+
+	for (i = 0; i < count; i++) {
+		printk(KERN_INFO "Adapter %08X: ", rows[0]);
+		p = (u8 *) (rows + 1);
+		d = (u8 *) (rows + 2);
+		state = p[1] << 8 | p[0];
+
+		printk("TID %04X:[", state & 0xFFF);
+		state >>= 12;
+		if (state & (1 << 0))
+			printk("H");	/* Hidden */
+		if (state & (1 << 2)) {
+			printk("P");	/* Present */
+			if (state & (1 << 1))
+				printk("C");	/* Controlled */
+		}
+		if (state > 9)
+			printk("*");	/* Hard */
+
+		printk("]:");
+
+		switch (p[3] & 0xFFFF) {
+		case 0:
+			/* Adapter private bus - easy */
+			printk("Local bus %d: I/O at 0x%04X Mem 0x%08X", p[2],
+			       d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+		case 1:
+			/* ISA bus */
+			printk("ISA %d: CSN %d I/O at 0x%04X Mem 0x%08X", p[2],
+			       d[2], d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+
+		case 2:	/* EISA bus */
+			printk("EISA %d: Slot %d I/O at 0x%04X Mem 0x%08X",
+			       p[2], d[3], d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+
+		case 3:	/* MCA bus */
+			printk("MCA %d: Slot %d I/O at 0x%04X Mem 0x%08X", p[2],
+			       d[3], d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+
+		case 4:	/* PCI bus */
+			printk("PCI %d: Bus %d Device %d Function %d", p[2],
+			       d[2], d[1], d[0]);
+			break;
+
+		case 0x80:	/* Other */
+		default:
+			printk("Unsupported bus type.");
+			break;
+		}
+		printk("\n");
+		rows += length;
+	}
+}
+
+EXPORT_SYMBOL(i2o_dump_message);