qeth: new qeth device driver

List of major changes and improvements:
 no manipulation of the global ARP constructor
 clean code split into core, layer 2 and layer 3 functionality
 better exploitation of the ethtool interface
 better representation of the various hardware capabilities
 fix packet socket support (tcpdump), no fake_ll required
 osasnmpd notification via udev events
 coding style and beautification

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 266 insertions, 0 deletions

diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c
new file mode 100644
index 000000000000..8653b73e5dcf
--- /dev/null
+++ b/drivers/s390/net/qeth_core_mpc.c
@@ -0,0 +1,266 @@
+/*
+ *  drivers/s390/net/qeth_core_mpc.c
+ *
+ *    Copyright IBM Corp. 2007
+ *    Author(s): Frank Pavlic <fpavlic@de.ibm.com>,
+ *		 Thomas Spatzier <tspat@de.ibm.com>,
+ *		 Frank Blaschka <frank.blaschka@de.ibm.com>
+ */
+
+#include <linux/module.h>
+#include <asm/cio.h>
+#include "qeth_core_mpc.h"
+
+unsigned char IDX_ACTIVATE_READ[] = {
+	0x00, 0x00, 0x80, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x19, 0x01, 0x01, 0x80,  0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0xc8, 0xc1,
+	0xd3, 0xd3, 0xd6, 0xd3,  0xc5, 0x40, 0x00, 0x00,
+	0x00, 0x00
+};
+
+unsigned char IDX_ACTIVATE_WRITE[] = {
+	0x00, 0x00, 0x80, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x15, 0x01, 0x01, 0x80,  0x00, 0x00, 0x00, 0x00,
+	0xff, 0xff, 0x00, 0x00,  0x00, 0x00, 0xc8, 0xc1,
+	0xd3, 0xd3, 0xd6, 0xd3,  0xc5, 0x40, 0x00, 0x00,
+	0x00, 0x00
+};
+
+unsigned char CM_ENABLE[] = {
+	0x00, 0xe0, 0x00, 0x00,  0x00, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x14,  0x00, 0x00, 0x00, 0x63,
+	0x10, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,
+	0x81, 0x7e, 0x00, 0x01,  0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x24, 0x00, 0x23,
+	0x00, 0x00, 0x23, 0x05,  0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00, 0x00, 0x23,  0x00, 0x00, 0x00, 0x40,
+	0x00, 0x0c, 0x41, 0x02,  0x00, 0x17, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x0b, 0x04, 0x01,
+	0x7e, 0x04, 0x05, 0x00,  0x01, 0x01, 0x0f,
+	0x00,
+	0x0c, 0x04, 0x02, 0xff,  0xff, 0xff, 0xff, 0xff,
+	0xff, 0xff, 0xff
+};
+
+unsigned char CM_SETUP[] = {
+	0x00, 0xe0, 0x00, 0x00,  0x00, 0x00, 0x00, 0x02,
+	0x00, 0x00, 0x00, 0x14,  0x00, 0x00, 0x00, 0x64,
+	0x10, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,
+	0x81, 0x7e, 0x00, 0x01,  0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x24, 0x00, 0x24,
+	0x00, 0x00, 0x24, 0x05,  0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00, 0x00, 0x24,  0x00, 0x00, 0x00, 0x40,
+	0x00, 0x0c, 0x41, 0x04,  0x00, 0x18, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x09, 0x04, 0x04,
+	0x05, 0x00, 0x01, 0x01,  0x11,
+	0x00, 0x09, 0x04,
+	0x05, 0x05, 0x00, 0x00,  0x00, 0x00,
+	0x00, 0x06,
+	0x04, 0x06, 0xc8, 0x00
+};
+
+unsigned char ULP_ENABLE[] = {
+	0x00, 0xe0, 0x00, 0x00,  0x00, 0x00, 0x00, 0x03,
+	0x00, 0x00, 0x00, 0x14,  0x00, 0x00, 0x00, 0x6b,
+	0x10, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,
+	0x41, 0x7e, 0x00, 0x01,  0x00, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x24, 0x00, 0x2b,
+	0x00, 0x00, 0x2b, 0x05,  0x20, 0x01, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00, 0x00, 0x2b,  0x00, 0x00, 0x00, 0x40,
+	0x00, 0x0c, 0x41, 0x02,  0x00, 0x1f, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x0b, 0x04, 0x01,
+	0x03, 0x04, 0x05, 0x00,  0x01, 0x01, 0x12,
+	0x00,
+	0x14, 0x04, 0x0a, 0x00,  0x20, 0x00, 0x00, 0xff,
+	0xff, 0x00, 0x08, 0xc8,  0xe8, 0xc4, 0xf1, 0xc7,
+	0xf1, 0x00, 0x00
+};
+
+unsigned char ULP_SETUP[] = {
+	0x00, 0xe0, 0x00, 0x00,  0x00, 0x00, 0x00, 0x04,
+	0x00, 0x00, 0x00, 0x14,  0x00, 0x00, 0x00, 0x6c,
+	0x10, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,
+	0x41, 0x7e, 0x00, 0x01,  0x00, 0x00, 0x00, 0x02,
+	0x00, 0x00, 0x00, 0x01,  0x00, 0x24, 0x00, 0x2c,
+	0x00, 0x00, 0x2c, 0x05,  0x20, 0x01, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00, 0x00, 0x2c,  0x00, 0x00, 0x00, 0x40,
+	0x00, 0x0c, 0x41, 0x04,  0x00, 0x20, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x09, 0x04, 0x04,
+	0x05, 0x00, 0x01, 0x01,  0x14,
+	0x00, 0x09, 0x04,
+	0x05, 0x05, 0x30, 0x01,  0x00, 0x00,
+	0x00, 0x06,
+	0x04, 0x06, 0x40, 0x00,
+	0x00, 0x08, 0x04, 0x0b,
+	0x00, 0x00, 0x00, 0x00
+};
+
+unsigned char DM_ACT[] = {
+	0x00, 0xe0, 0x00, 0x00,  0x00, 0x00, 0x00, 0x05,
+	0x00, 0x00, 0x00, 0x14,  0x00, 0x00, 0x00, 0x55,
+	0x10, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,
+	0x41, 0x7e, 0x00, 0x01,  0x00, 0x00, 0x00, 0x03,
+	0x00, 0x00, 0x00, 0x02,  0x00, 0x24, 0x00, 0x15,
+	0x00, 0x00, 0x2c, 0x05,  0x20, 0x01, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00, 0x00, 0x15,  0x00, 0x00, 0x00, 0x40,
+	0x00, 0x0c, 0x43, 0x60,  0x00, 0x09, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x09, 0x04, 0x04,
+	0x05, 0x40, 0x01, 0x01,  0x00
+};
+
+unsigned char IPA_PDU_HEADER[] = {
+	0x00, 0xe0, 0x00, 0x00,  0x77, 0x77, 0x77, 0x77,
+	0x00, 0x00, 0x00, 0x14,  0x00, 0x00,
+		(IPA_PDU_HEADER_SIZE+sizeof(struct qeth_ipa_cmd)) / 256,
+		(IPA_PDU_HEADER_SIZE+sizeof(struct qeth_ipa_cmd)) % 256,
+	0x10, 0x00, 0x00, 0x01,  0x00, 0x00, 0x00, 0x00,
+	0xc1, 0x03, 0x00, 0x01,  0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x24,
+		sizeof(struct qeth_ipa_cmd) / 256,
+		sizeof(struct qeth_ipa_cmd) % 256,
+	0x00,
+		sizeof(struct qeth_ipa_cmd) / 256,
+		sizeof(struct qeth_ipa_cmd) % 256,
+	0x05,
+	0x77, 0x77, 0x77, 0x77,
+	0x00, 0x00, 0x00, 0x00,  0x00, 0x00, 0x00, 0x00,
+	0x01, 0x00,
+		sizeof(struct qeth_ipa_cmd) / 256,
+		sizeof(struct qeth_ipa_cmd) % 256,
+	0x00, 0x00, 0x00, 0x40,
+};
+EXPORT_SYMBOL_GPL(IPA_PDU_HEADER);
+
+unsigned char WRITE_CCW[] = {
+	0x01, CCW_FLAG_SLI, 0, 0,
+	0, 0, 0, 0
+};
+
+unsigned char READ_CCW[] = {
+	0x02, CCW_FLAG_SLI, 0, 0,
+	0, 0, 0, 0
+};
+
+
+struct ipa_rc_msg {
+	enum qeth_ipa_return_codes rc;
+	char *msg;
+};
+
+static struct ipa_rc_msg qeth_ipa_rc_msg[] = {
+	{IPA_RC_SUCCESS,		"success"},
+	{IPA_RC_NOTSUPP,		"Command not supported"},
+	{IPA_RC_IP_TABLE_FULL,		"Add Addr IP Table Full - ipv6"},
+	{IPA_RC_UNKNOWN_ERROR,		"IPA command failed - reason unknown"},
+	{IPA_RC_UNSUPPORTED_COMMAND,	"Command not supported"},
+	{IPA_RC_DUP_IPV6_REMOTE, "ipv6 address already registered remote"},
+	{IPA_RC_DUP_IPV6_HOME,		"ipv6 address already registered"},
+	{IPA_RC_UNREGISTERED_ADDR,	"Address not registered"},
+	{IPA_RC_NO_ID_AVAILABLE,	"No identifiers available"},
+	{IPA_RC_ID_NOT_FOUND,		"Identifier not found"},
+	{IPA_RC_INVALID_IP_VERSION,	"IP version incorrect"},
+	{IPA_RC_LAN_FRAME_MISMATCH,	"LAN and frame mismatch"},
+	{IPA_RC_L2_UNSUPPORTED_CMD,	"Unsupported layer 2 command"},
+	{IPA_RC_L2_DUP_MAC,		"Duplicate MAC address"},
+	{IPA_RC_L2_ADDR_TABLE_FULL,	"Layer2 address table full"},
+	{IPA_RC_L2_DUP_LAYER3_MAC,	"Duplicate with layer 3 MAC"},
+	{IPA_RC_L2_GMAC_NOT_FOUND,	"GMAC not found"},
+	{IPA_RC_L2_MAC_NOT_FOUND,	"L2 mac address not found"},
+	{IPA_RC_L2_INVALID_VLAN_ID,	"L2 invalid vlan id"},
+	{IPA_RC_L2_DUP_VLAN_ID,		"L2 duplicate vlan id"},
+	{IPA_RC_L2_VLAN_ID_NOT_FOUND,	"L2 vlan id not found"},
+	{IPA_RC_DATA_MISMATCH,		"Data field mismatch (v4/v6 mixed)"},
+	{IPA_RC_INVALID_MTU_SIZE,	"Invalid MTU size"},
+	{IPA_RC_INVALID_LANTYPE,	"Invalid LAN type"},
+	{IPA_RC_INVALID_LANNUM,		"Invalid LAN num"},
+	{IPA_RC_DUPLICATE_IP_ADDRESS,	"Address already registered"},
+	{IPA_RC_IP_ADDR_TABLE_FULL,	"IP address table full"},
+	{IPA_RC_LAN_PORT_STATE_ERROR,	"LAN port state error"},
+	{IPA_RC_SETIP_NO_STARTLAN,	"Setip no startlan received"},
+	{IPA_RC_SETIP_ALREADY_RECEIVED,	"Setip already received"},
+	{IPA_RC_IP_ADDR_ALREADY_USED,	"IP address already in use on LAN"},
+	{IPA_RC_MULTICAST_FULL,		"No task available, multicast full"},
+	{IPA_RC_SETIP_INVALID_VERSION,	"SETIP invalid IP version"},
+	{IPA_RC_UNSUPPORTED_SUBCMD,	"Unsupported assist subcommand"},
+	{IPA_RC_ARP_ASSIST_NO_ENABLE,	"Only partial success, no enable"},
+	{IPA_RC_PRIMARY_ALREADY_DEFINED, "Primary already defined"},
+	{IPA_RC_SECOND_ALREADY_DEFINED,	"Secondary already defined"},
+	{IPA_RC_INVALID_SETRTG_INDICATOR, "Invalid SETRTG indicator"},
+	{IPA_RC_MC_ADDR_ALREADY_DEFINED, "Multicast address already defined"},
+	{IPA_RC_LAN_OFFLINE,		"STRTLAN_LAN_DISABLED - LAN offline"},
+	{IPA_RC_INVALID_IP_VERSION2,	"Invalid IP version"},
+	{IPA_RC_FFFF,			"Unknown Error"}
+};
+
+
+
+char *qeth_get_ipa_msg(enum qeth_ipa_return_codes rc)
+{
+	int x = 0;
+	qeth_ipa_rc_msg[sizeof(qeth_ipa_rc_msg) /
+			sizeof(struct ipa_rc_msg) - 1].rc = rc;
+	while (qeth_ipa_rc_msg[x].rc != rc)
+		x++;
+	return qeth_ipa_rc_msg[x].msg;
+}
+
+
+struct ipa_cmd_names {
+	enum qeth_ipa_cmds cmd;
+	char *name;
+};
+
+static struct ipa_cmd_names qeth_ipa_cmd_names[] = {
+	{IPA_CMD_STARTLAN,	"startlan"},
+	{IPA_CMD_STOPLAN,	"stoplan"},
+	{IPA_CMD_SETVMAC,	"setvmac"},
+	{IPA_CMD_DELVMAC,	"delvmca"},
+	{IPA_CMD_SETGMAC,	"setgmac"},
+	{IPA_CMD_DELGMAC,	"delgmac"},
+	{IPA_CMD_SETVLAN,	"setvlan"},
+	{IPA_CMD_DELVLAN,	"delvlan"},
+	{IPA_CMD_SETCCID,	"setccid"},
+	{IPA_CMD_DELCCID,	"delccid"},
+	{IPA_CMD_MODCCID,	"modccid"},
+	{IPA_CMD_SETIP,		"setip"},
+	{IPA_CMD_QIPASSIST,	"qipassist"},
+	{IPA_CMD_SETASSPARMS,	"setassparms"},
+	{IPA_CMD_SETIPM,	"setipm"},
+	{IPA_CMD_DELIPM,	"delipm"},
+	{IPA_CMD_SETRTG,	"setrtg"},
+	{IPA_CMD_DELIP,		"delip"},
+	{IPA_CMD_SETADAPTERPARMS, "setadapterparms"},
+	{IPA_CMD_SET_DIAG_ASS,	"set_diag_ass"},
+	{IPA_CMD_CREATE_ADDR,	"create_addr"},
+	{IPA_CMD_DESTROY_ADDR,	"destroy_addr"},
+	{IPA_CMD_REGISTER_LOCAL_ADDR,	"register_local_addr"},
+	{IPA_CMD_UNREGISTER_LOCAL_ADDR,	"unregister_local_addr"},
+	{IPA_CMD_UNKNOWN,	"unknown"},
+};
+
+char *qeth_get_ipa_cmd_name(enum qeth_ipa_cmds cmd)
+{
+	int x = 0;
+	qeth_ipa_cmd_names[
+		sizeof(qeth_ipa_cmd_names) /
+			sizeof(struct ipa_cmd_names)-1].cmd = cmd;
+	while (qeth_ipa_cmd_names[x].cmd != cmd)
+		x++;
+	return qeth_ipa_cmd_names[x].name;
+}