/*
- *
- * linux/drivers/s390/scsi/zfcp_def.h
- *
- * FCP adapter driver for IBM eServer zSeries
- *
- * (C) Copyright IBM Corp. 2002, 2004
+ * This file is part of the zfcp device driver for
+ * FCP adapters for IBM System z9 and zSeries.
*
- * Author(s): Martin Peschke <mpeschke@de.ibm.com>
- * Raimund Schroeder <raimund.schroeder@de.ibm.com>
- * Aron Zeh
- * Wolfgang Taphorn
- * Stefan Bader <stefan.bader@de.ibm.com>
- * Heiko Carstens <heiko.carstens@de.ibm.com>
+ * (C) Copyright IBM Corp. 2002, 2006
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-
#ifndef ZFCP_DEF_H
#define ZFCP_DEF_H
-/* this drivers version (do not edit !!! generated and updated by cvs) */
-#define ZFCP_DEF_REVISION "$Revision: 1.73 $"
-
/*************************** INCLUDES *****************************************/
#include <linux/init.h>
#include <linux/miscdevice.h>
#include <linux/major.h>
#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/mempool.h>
+#include <linux/syscalls.h>
+#include <linux/ioctl.h>
#include <scsi/scsi.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
-#include "../../fc4/fc.h"
-#include "zfcp_fsf.h"
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_fc.h>
#include <asm/ccwdev.h>
#include <asm/qdio.h>
#include <asm/debug.h>
#include <asm/ebcdic.h>
-#include <linux/reboot.h>
-#include <linux/mempool.h>
-#include <linux/syscalls.h>
-#include <linux/ioctl.h>
-#ifdef CONFIG_S390_SUPPORT
-#include <linux/ioctl32.h>
-#endif
-
-/************************ DEBUG FLAGS *****************************************/
+#include "zfcp_fsf.h"
-#define ZFCP_PRINT_FLAGS
/********************* GENERAL DEFINES *********************************/
/* zfcp version number, it consists of major, minor, and patch-level number */
-#define ZFCP_VERSION "4.0.0"
+#define ZFCP_VERSION "4.8.0"
+/**
+ * zfcp_sg_to_address - determine kernel address from struct scatterlist
+ * @list: struct scatterlist
+ * Return: kernel address
+ */
static inline void *
zfcp_sg_to_address(struct scatterlist *list)
{
return (void *) (page_address(list->page) + list->offset);
}
+/**
+ * zfcp_address_to_sg - set up struct scatterlist from kernel address
+ * @address: kernel address
+ * @list: struct scatterlist
+ */
static inline void
zfcp_address_to_sg(void *address, struct scatterlist *list)
{
list->offset = ((unsigned long) address) & (PAGE_SIZE - 1);
}
-/********************* SCSI SPECIFIC DEFINES *********************************/
+#define REQUEST_LIST_SIZE 128
-/* 32 bit for SCSI ID and LUN as long as the SCSI stack uses this type */
-typedef u32 scsi_id_t;
-typedef u32 scsi_lun_t;
-
-#define ZFCP_ERP_SCSI_LOW_MEM_TIMEOUT (100*HZ)
-#define ZFCP_SCSI_ER_TIMEOUT (100*HZ)
+/********************* SCSI SPECIFIC DEFINES *********************************/
+#define ZFCP_SCSI_ER_TIMEOUT (10*HZ)
/********************* CIO/QDIO SPECIFIC DEFINES *****************************/
(ZFCP_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2)
/* request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */
+#define ZFCP_MAX_SECTORS (ZFCP_MAX_SBALES_PER_REQ * 8)
+ /* max. number of (data buffer) SBALEs in largest SBAL chain
+ multiplied with number of sectors per 4k block */
+
/* FIXME(tune): free space should be one max. SBAL chain plus what? */
#define ZFCP_QDIO_PCI_INTERVAL (QDIO_MAX_BUFFERS_PER_Q \
- (ZFCP_MAX_SBALS_PER_REQ + 4))
#define FSF_QTCB_UNSOLICITED_STATUS 0x6305
#define ZFCP_STATUS_READ_FAILED_THRESHOLD 3
#define ZFCP_STATUS_READS_RECOM FSF_STATUS_READS_RECOM
-#define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES 6
-#define ZFCP_EXCHANGE_CONFIG_DATA_SLEEP 50
+
+/* Do 1st retry in 1 second, then double the timeout for each following retry */
+#define ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP 100
+#define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES 7
+
+/* timeout value for "default timer" for fsf requests */
+#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ)
/*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/
typedef unsigned long long wwn_t;
-typedef unsigned int fc_id_t;
typedef unsigned long long fcp_lun_t;
/* data length field may be at variable position in FCP-2 FCP_CMND IU */
typedef unsigned int fcp_dl_t;
/* timeout for name-server lookup (in seconds) */
#define ZFCP_NS_GID_PN_TIMEOUT 10
-#define ZFCP_NS_GA_NXT_TIMEOUT 120
/* largest SCSI command we can process */
/* FCP-2 (FCP_CMND IU) allows up to (255-3+16) */
#define UNTAGGED 5
/* task management flags in FCP-2 FCP_CMND IU */
-#define CLEAR_ACA 0x40
-#define TARGET_RESET 0x20
-#define LOGICAL_UNIT_RESET 0x10
-#define CLEAR_TASK_SET 0x04
-#define ABORT_TASK_SET 0x02
+#define FCP_CLEAR_ACA 0x40
+#define FCP_TARGET_RESET 0x20
+#define FCP_LOGICAL_UNIT_RESET 0x10
+#define FCP_CLEAR_TASK_SET 0x04
+#define FCP_ABORT_TASK_SET 0x02
#define FCP_CDB_LENGTH 16
#define RSP_CODE_TASKMAN_FAILED 5
/* see fc-fs */
-#define LS_FAN 0x60000000
-#define LS_RSCN 0x61040000
+#define LS_RSCN 0x61040000
+#define LS_LOGO 0x05000000
+#define LS_PLOGI 0x03000000
struct fcp_rscn_head {
u8 command;
#define ZFCP_NO_PORTS_PER_DOMAIN 0x10000
#define ZFCP_NO_PORTS_PER_FABRIC 0x1000000
-struct fcp_fan {
- u32 command;
- u32 fport_did;
- wwn_t fport_wwpn;
- wwn_t fport_wwname;
-} __attribute__((packed));
-
/* see fc-ph */
struct fcp_logo {
u32 command;
} __attribute__((packed));
/*
- * FC-FS stuff
+ * DBF stuff
*/
-#define R_A_TOV 10 /* seconds */
-#define ZFCP_ELS_TIMEOUT (2 * R_A_TOV)
+#define ZFCP_DBF_TAG_SIZE 4
+
+struct zfcp_dbf_dump {
+ u8 tag[ZFCP_DBF_TAG_SIZE];
+ u32 total_size; /* size of total dump data */
+ u32 offset; /* how much data has being already dumped */
+ u32 size; /* how much data comes with this record */
+ u8 data[]; /* dump data */
+} __attribute__ ((packed));
-#define ZFCP_LS_RJT 0x01
-#define ZFCP_LS_ACC 0x02
-#define ZFCP_LS_RTV 0x0E
-#define ZFCP_LS_RLS 0x0F
-#define ZFCP_LS_PDISC 0x50
-#define ZFCP_LS_ADISC 0x52
-#define ZFCP_LS_RSCN 0x61
-#define ZFCP_LS_RNID 0x78
-#define ZFCP_LS_RLIR 0x7A
-#define ZFCP_LS_RTV_E_D_TOV_FLAG 0x04000000
-
-/* LS_ACC Reason Codes */
-#define ZFCP_LS_RJT_INVALID_COMMAND_CODE 0x01
-#define ZFCP_LS_RJT_LOGICAL_ERROR 0x03
-#define ZFCP_LS_RJT_LOGICAL_BUSY 0x05
-#define ZFCP_LS_RJT_PROTOCOL_ERROR 0x07
-#define ZFCP_LS_RJT_UNABLE_TO_PERFORM 0x09
-#define ZFCP_LS_RJT_COMMAND_NOT_SUPPORTED 0x0B
-#define ZFCP_LS_RJT_VENDOR_UNIQUE_ERROR 0xFF
-
-struct zfcp_ls_rjt {
- u8 code;
- u8 field[3];
- u8 reserved;
- u8 reason_code;
- u8 reason_expl;
- u8 vendor_unique;
+/* FIXME: to be inflated when reworking the erp dbf */
+struct zfcp_erp_dbf_record {
+ u8 dummy[16];
} __attribute__ ((packed));
-struct zfcp_ls_rtv {
- u8 code;
- u8 field[3];
+struct zfcp_hba_dbf_record_response {
+ u32 fsf_command;
+ u64 fsf_reqid;
+ u32 fsf_seqno;
+ u64 fsf_issued;
+ u32 fsf_prot_status;
+ u32 fsf_status;
+ u8 fsf_prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
+ u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
+ u32 fsf_req_status;
+ u8 sbal_first;
+ u8 sbal_curr;
+ u8 sbal_last;
+ u8 pool;
+ u64 erp_action;
+ union {
+ struct {
+ u64 scsi_cmnd;
+ u64 scsi_serial;
+ } send_fcp;
+ struct {
+ u64 wwpn;
+ u32 d_id;
+ u32 port_handle;
+ } port;
+ struct {
+ u64 wwpn;
+ u64 fcp_lun;
+ u32 port_handle;
+ u32 lun_handle;
+ } unit;
+ struct {
+ u32 d_id;
+ u8 ls_code;
+ } send_els;
+ } data;
} __attribute__ ((packed));
-struct zfcp_ls_rtv_acc {
- u8 code;
- u8 field[3];
- u32 r_a_tov;
- u32 e_d_tov;
- u32 qualifier;
+struct zfcp_hba_dbf_record_status {
+ u8 failed;
+ u32 status_type;
+ u32 status_subtype;
+ struct fsf_queue_designator
+ queue_designator;
+ u32 payload_size;
+#define ZFCP_DBF_UNSOL_PAYLOAD 80
+#define ZFCP_DBF_UNSOL_PAYLOAD_SENSE_DATA_AVAIL 32
+#define ZFCP_DBF_UNSOL_PAYLOAD_BIT_ERROR_THRESHOLD 56
+#define ZFCP_DBF_UNSOL_PAYLOAD_FEATURE_UPDATE_ALERT 2 * sizeof(u32)
+ u8 payload[ZFCP_DBF_UNSOL_PAYLOAD];
} __attribute__ ((packed));
-struct zfcp_ls_rls {
- u8 code;
- u8 field[3];
- fc_id_t port_id;
+struct zfcp_hba_dbf_record_qdio {
+ u32 status;
+ u32 qdio_error;
+ u32 siga_error;
+ u8 sbal_index;
+ u8 sbal_count;
} __attribute__ ((packed));
-struct zfcp_ls_rls_acc {
- u8 code;
- u8 field[3];
- u32 link_failure_count;
- u32 loss_of_sync_count;
- u32 loss_of_signal_count;
- u32 prim_seq_prot_error;
- u32 invalid_transmition_word;
- u32 invalid_crc_count;
+struct zfcp_hba_dbf_record {
+ u8 tag[ZFCP_DBF_TAG_SIZE];
+ u8 tag2[ZFCP_DBF_TAG_SIZE];
+ union {
+ struct zfcp_hba_dbf_record_response response;
+ struct zfcp_hba_dbf_record_status status;
+ struct zfcp_hba_dbf_record_qdio qdio;
+ } type;
} __attribute__ ((packed));
-struct zfcp_ls_pdisc {
- u8 code;
- u8 field[3];
- u8 common_svc_parm[16];
- wwn_t wwpn;
- wwn_t wwnn;
- struct {
- u8 class1[16];
- u8 class2[16];
- u8 class3[16];
- } svc_parm;
- u8 reserved[16];
- u8 vendor_version[16];
+struct zfcp_san_dbf_record_ct {
+ union {
+ struct {
+ u16 cmd_req_code;
+ u8 revision;
+ u8 gs_type;
+ u8 gs_subtype;
+ u8 options;
+ u16 max_res_size;
+ } request;
+ struct {
+ u16 cmd_rsp_code;
+ u8 revision;
+ u8 reason_code;
+ u8 reason_code_expl;
+ u8 vendor_unique;
+ } response;
+ } type;
+ u32 payload_size;
+#define ZFCP_DBF_CT_PAYLOAD 24
+ u8 payload[ZFCP_DBF_CT_PAYLOAD];
} __attribute__ ((packed));
-struct zfcp_ls_pdisc_acc {
- u8 code;
- u8 field[3];
- u8 common_svc_parm[16];
- wwn_t wwpn;
- wwn_t wwnn;
- struct {
- u8 class1[16];
- u8 class2[16];
- u8 class3[16];
- } svc_parm;
- u8 reserved[16];
- u8 vendor_version[16];
+struct zfcp_san_dbf_record_els {
+ u8 ls_code;
+ u32 payload_size;
+#define ZFCP_DBF_ELS_PAYLOAD 32
+#define ZFCP_DBF_ELS_MAX_PAYLOAD 1024
+ u8 payload[ZFCP_DBF_ELS_PAYLOAD];
+} __attribute__ ((packed));
+
+struct zfcp_san_dbf_record {
+ u8 tag[ZFCP_DBF_TAG_SIZE];
+ u64 fsf_reqid;
+ u32 fsf_seqno;
+ u32 s_id;
+ u32 d_id;
+ union {
+ struct zfcp_san_dbf_record_ct ct;
+ struct zfcp_san_dbf_record_els els;
+ } type;
+} __attribute__ ((packed));
+
+struct zfcp_scsi_dbf_record {
+ u8 tag[ZFCP_DBF_TAG_SIZE];
+ u8 tag2[ZFCP_DBF_TAG_SIZE];
+ u32 scsi_id;
+ u32 scsi_lun;
+ u32 scsi_result;
+ u64 scsi_cmnd;
+ u64 scsi_serial;
+#define ZFCP_DBF_SCSI_OPCODE 16
+ u8 scsi_opcode[ZFCP_DBF_SCSI_OPCODE];
+ u8 scsi_retries;
+ u8 scsi_allowed;
+ u64 fsf_reqid;
+ u32 fsf_seqno;
+ u64 fsf_issued;
+ union {
+ u64 old_fsf_reqid;
+ struct {
+ u8 rsp_validity;
+ u8 rsp_scsi_status;
+ u32 rsp_resid;
+ u8 rsp_code;
+#define ZFCP_DBF_SCSI_FCP_SNS_INFO 16
+#define ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO 256
+ u32 sns_info_len;
+ u8 sns_info[ZFCP_DBF_SCSI_FCP_SNS_INFO];
+ } fcp;
+ } type;
+} __attribute__ ((packed));
+
+/*
+ * FC-FS stuff
+ */
+#define R_A_TOV 10 /* seconds */
+#define ZFCP_ELS_TIMEOUT (2 * R_A_TOV)
+
+#define ZFCP_LS_RLS 0x0f
+#define ZFCP_LS_ADISC 0x52
+#define ZFCP_LS_RPS 0x56
+#define ZFCP_LS_RSCN 0x61
+#define ZFCP_LS_RNID 0x78
+
+struct zfcp_ls_rjt_par {
+ u8 action;
+ u8 reason_code;
+ u8 reason_expl;
+ u8 vendor_unique;
} __attribute__ ((packed));
struct zfcp_ls_adisc {
u8 code;
u8 field[3];
- fc_id_t hard_nport_id;
- wwn_t wwpn;
- wwn_t wwnn;
- fc_id_t nport_id;
+ u32 hard_nport_id;
+ u64 wwpn;
+ u64 wwnn;
+ u32 nport_id;
} __attribute__ ((packed));
struct zfcp_ls_adisc_acc {
u8 code;
u8 field[3];
- fc_id_t hard_nport_id;
- wwn_t wwpn;
- wwn_t wwnn;
- fc_id_t nport_id;
+ u32 hard_nport_id;
+ u64 wwpn;
+ u64 wwnn;
+ u32 nport_id;
} __attribute__ ((packed));
-struct zfcp_ls_rnid {
- u8 code;
- u8 field[3];
- u8 node_id_format;
- u8 reserved[3];
-} __attribute__((packed));
-
-/* common identification data */
-struct zfcp_ls_rnid_common_id {
- u64 n_port_name;
- u64 node_name;
-} __attribute__((packed));
-
-/* general topology specific identification data */
-struct zfcp_ls_rnid_general_topology_id {
- u8 vendor_unique[16];
- u32 associated_type;
- u32 physical_port_number;
- u32 nr_attached_nodes;
- u8 node_management;
- u8 ip_version;
- u16 port_number;
- u8 ip_address[16];
- u8 reserved[2];
- u16 vendor_specific;
-} __attribute__((packed));
-
-struct zfcp_ls_rnid_acc {
- u8 code;
- u8 field[3];
- u8 node_id_format;
- u8 common_id_length;
- u8 reserved;
- u8 specific_id_length;
- struct zfcp_ls_rnid_common_id
- common_id;
- struct zfcp_ls_rnid_general_topology_id
- specific_id;
-} __attribute__((packed));
+struct zfcp_rc_entry {
+ u8 code;
+ const char *description;
+};
/*
* FC-GS-2 stuff
#define ZFCP_CT_NAME_SERVER 0x02
#define ZFCP_CT_SYNCHRONOUS 0x00
#define ZFCP_CT_GID_PN 0x0121
-#define ZFCP_CT_GA_NXT 0x0100
#define ZFCP_CT_MAX_SIZE 0x1020
#define ZFCP_CT_ACCEPT 0x8002
+#define ZFCP_CT_REJECT 0x8001
/*
* FC-GS-4 stuff
*/
#define ZFCP_CT_TIMEOUT (3 * R_A_TOV)
-
-/***************** S390 DEBUG FEATURE SPECIFIC DEFINES ***********************/
-
-/* debug feature entries per adapter */
-#define ZFCP_ERP_DBF_INDEX 1
-#define ZFCP_ERP_DBF_AREAS 2
-#define ZFCP_ERP_DBF_LENGTH 16
-#define ZFCP_ERP_DBF_LEVEL 3
-#define ZFCP_ERP_DBF_NAME "zfcperp"
-
-#define ZFCP_CMD_DBF_INDEX 2
-#define ZFCP_CMD_DBF_AREAS 1
-#define ZFCP_CMD_DBF_LENGTH 8
-#define ZFCP_CMD_DBF_LEVEL 3
-#define ZFCP_CMD_DBF_NAME "zfcpcmd"
-
-#define ZFCP_ABORT_DBF_INDEX 2
-#define ZFCP_ABORT_DBF_AREAS 1
-#define ZFCP_ABORT_DBF_LENGTH 8
-#define ZFCP_ABORT_DBF_LEVEL 6
-#define ZFCP_ABORT_DBF_NAME "zfcpabt"
-
-#define ZFCP_IN_ELS_DBF_INDEX 2
-#define ZFCP_IN_ELS_DBF_AREAS 1
-#define ZFCP_IN_ELS_DBF_LENGTH 8
-#define ZFCP_IN_ELS_DBF_LEVEL 6
-#define ZFCP_IN_ELS_DBF_NAME "zfcpels"
-
/******************** LOGGING MACROS AND DEFINES *****************************/
/*
/* all log-level defaults are combined to generate initial log-level */
#define ZFCP_LOG_LEVEL_DEFAULTS \
- (ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_OTHER) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_SCSI) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_FSF) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_CONFIG) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_CIO) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_QDIO) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_ERP) | \
- ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_INFO, ZFCP_LOG_AREA_FC))
+ (ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_OTHER) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_SCSI) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_FSF) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_CONFIG) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_CIO) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_QDIO) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_ERP) | \
+ ZFCP_SET_LOG_NIBBLE(ZFCP_LOG_LEVEL_NORMAL, ZFCP_LOG_AREA_FC))
/* check whether we have the right level for logging */
#define ZFCP_LOG_CHECK(level) \
/* logging routine for zfcp */
#define _ZFCP_LOG(fmt, args...) \
printk(KERN_ERR ZFCP_NAME": %s(%d): " fmt, __FUNCTION__, \
- __LINE__ , ##args);
+ __LINE__ , ##args)
#define ZFCP_LOG(level, fmt, args...) \
+do { \
if (ZFCP_LOG_CHECK(level)) \
- _ZFCP_LOG(fmt , ##args)
+ _ZFCP_LOG(fmt, ##args); \
+} while (0)
#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_NORMAL
-# define ZFCP_LOG_NORMAL(fmt, args...)
+# define ZFCP_LOG_NORMAL(fmt, args...) do { } while (0)
#else
# define ZFCP_LOG_NORMAL(fmt, args...) \
+do { \
if (ZFCP_LOG_CHECK(ZFCP_LOG_LEVEL_NORMAL)) \
- printk(KERN_ERR ZFCP_NAME": " fmt , ##args);
+ printk(KERN_ERR ZFCP_NAME": " fmt, ##args); \
+} while (0)
#endif
#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_INFO
-# define ZFCP_LOG_INFO(fmt, args...)
+# define ZFCP_LOG_INFO(fmt, args...) do { } while (0)
#else
# define ZFCP_LOG_INFO(fmt, args...) \
+do { \
if (ZFCP_LOG_CHECK(ZFCP_LOG_LEVEL_INFO)) \
- printk(KERN_ERR ZFCP_NAME": " fmt , ##args);
+ printk(KERN_ERR ZFCP_NAME": " fmt, ##args); \
+} while (0)
#endif
#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_DEBUG
-# define ZFCP_LOG_DEBUG(fmt, args...)
+# define ZFCP_LOG_DEBUG(fmt, args...) do { } while (0)
#else
# define ZFCP_LOG_DEBUG(fmt, args...) \
ZFCP_LOG(ZFCP_LOG_LEVEL_DEBUG, fmt , ##args)
#endif
#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_TRACE
-# define ZFCP_LOG_TRACE(fmt, args...)
+# define ZFCP_LOG_TRACE(fmt, args...) do { } while (0)
#else
# define ZFCP_LOG_TRACE(fmt, args...) \
ZFCP_LOG(ZFCP_LOG_LEVEL_TRACE, fmt , ##args)
#endif
-#ifndef ZFCP_PRINT_FLAGS
-# define ZFCP_LOG_FLAGS(level, fmt, args...)
-#else
-extern u32 flags_dump;
-# define ZFCP_LOG_FLAGS(level, fmt, args...) \
- if (level <= flags_dump) \
- _ZFCP_LOG(fmt , ##args)
-#endif
-
/*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/
/*
* Note, the leftmost status byte is common among adapter, port
* and unit
*/
-#define ZFCP_COMMON_FLAGS 0xff000000
-#define ZFCP_SPECIFIC_FLAGS 0x00ffffff
+#define ZFCP_COMMON_FLAGS 0xfff00000
/* common status bits */
#define ZFCP_STATUS_COMMON_REMOVE 0x80000000
#define ZFCP_STATUS_COMMON_OPEN 0x04000000
#define ZFCP_STATUS_COMMON_CLOSING 0x02000000
#define ZFCP_STATUS_COMMON_ERP_INUSE 0x01000000
+#define ZFCP_STATUS_COMMON_ACCESS_DENIED 0x00800000
+#define ZFCP_STATUS_COMMON_ACCESS_BOXED 0x00400000
/* adapter status */
#define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002
#define ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL 0x00000080
#define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100
#define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200
+#define ZFCP_STATUS_ADAPTER_XPORT_OK 0x00000800
-#define ZFCP_STATUS_ADAPTER_SCSI_UP \
- (ZFCP_STATUS_COMMON_UNBLOCKED | \
- ZFCP_STATUS_ADAPTER_REGISTERED)
-
-
-#define ZFCP_DID_NAMESERVER 0xFFFFFC
+/* FC-PH/FC-GS well-known address identifiers for generic services */
+#define ZFCP_DID_MANAGEMENT_SERVICE 0xFFFFFA
+#define ZFCP_DID_TIME_SERVICE 0xFFFFFB
+#define ZFCP_DID_DIRECTORY_SERVICE 0xFFFFFC
+#define ZFCP_DID_ALIAS_SERVICE 0xFFFFF8
+#define ZFCP_DID_KEY_DISTRIBUTION_SERVICE 0xFFFFF7
/* remote port status */
#define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001
#define ZFCP_STATUS_PORT_NO_SCSI_ID 0x00000010
#define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020
-#define ZFCP_STATUS_PORT_NAMESERVER \
+/* for ports with well known addresses */
+#define ZFCP_STATUS_PORT_WKA \
(ZFCP_STATUS_PORT_NO_WWPN | \
ZFCP_STATUS_PORT_NO_SCSI_ID)
/* logical unit status */
#define ZFCP_STATUS_UNIT_NOTSUPPUNITRESET 0x00000001
-
+#define ZFCP_STATUS_UNIT_TEMPORARY 0x00000002
+#define ZFCP_STATUS_UNIT_SHARED 0x00000004
+#define ZFCP_STATUS_UNIT_READONLY 0x00000008
+#define ZFCP_STATUS_UNIT_REGISTERED 0x00000010
/* FSF request status (this does not have a common part) */
#define ZFCP_STATUS_FSFREQ_NOT_INIT 0x00000000
mempool_t *data_gid_pn;
};
-struct zfcp_exchange_config_data{
-};
-
-struct zfcp_open_port {
- struct zfcp_port *port;
-};
-
-struct zfcp_close_port {
- struct zfcp_port *port;
-};
-
-struct zfcp_open_unit {
- struct zfcp_unit *unit;
-};
-
-struct zfcp_close_unit {
- struct zfcp_unit *unit;
-};
-
-struct zfcp_close_physical_port {
- struct zfcp_port *port;
-};
-
-struct zfcp_send_fcp_command_task {
- struct zfcp_fsf_req *fsf_req;
- struct zfcp_unit *unit;
- struct scsi_cmnd *scsi_cmnd;
- unsigned long start_jiffies;
-};
-
-struct zfcp_send_fcp_command_task_management {
- struct zfcp_unit *unit;
-};
-
-struct zfcp_abort_fcp_command {
- struct zfcp_fsf_req *fsf_req;
- struct zfcp_unit *unit;
-};
-
/*
* header for CT_IU
*/
wwn_t wwpn;
} __attribute__ ((packed));
-/* nameserver request CT_IU -- for requests where
- * a port identifier is required */
-struct ct_iu_ga_nxt_req {
- struct ct_hdr header;
- fc_id_t d_id;
-} __attribute__ ((packed));
-
/* FS_ACC IU and data unit for GID_PN nameserver request */
struct ct_iu_gid_pn_resp {
struct ct_hdr header;
- fc_id_t d_id;
-} __attribute__ ((packed));
-
-/* FS_ACC IU and data unit for GA_NXT nameserver request */
-struct ct_iu_ga_nxt_resp {
- struct ct_hdr header;
- u8 port_type;
- u8 port_id[3];
- u64 port_wwn;
- u8 port_symbolic_name_length;
- u8 port_symbolic_name[255];
- u64 node_wwn;
- u8 node_symbolic_name_length;
- u8 node_symbolic_name[255];
- u64 initial_process_associator;
- u8 node_ip[16];
- u32 cos;
- u8 fc4_types[32];
- u8 port_ip[16];
- u64 fabric_wwn;
- u8 reserved;
- u8 hard_address[3];
+ u32 d_id;
} __attribute__ ((packed));
typedef void (*zfcp_send_ct_handler_t)(unsigned long);
-/* used to pass parameters to zfcp_send_ct() */
+/**
+ * struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct
+ * @port: port where the request is sent to
+ * @req: scatter-gather list for request
+ * @resp: scatter-gather list for response
+ * @req_count: number of elements in request scatter-gather list
+ * @resp_count: number of elements in response scatter-gather list
+ * @handler: handler function (called for response to the request)
+ * @handler_data: data passed to handler function
+ * @pool: pointer to memory pool for ct request structure
+ * @timeout: FSF timeout for this request
+ * @completion: completion for synchronization purposes
+ * @status: used to pass error status to calling function
+ */
struct zfcp_send_ct {
struct zfcp_port *port;
struct scatterlist *req;
unsigned int resp_count;
zfcp_send_ct_handler_t handler;
unsigned long handler_data;
- mempool_t *pool; /* mempool for ct not for fsf_req */
+ mempool_t *pool;
int timeout;
- struct timer_list *timer;
struct completion *completion;
int status;
};
struct zfcp_port *port;
};
-typedef int (*zfcp_send_els_handler_t)(unsigned long);
-
-/* used to pass parameters to zfcp_send_els() */
-/* ToDo merge send_ct() and send_els() and corresponding structs */
+typedef void (*zfcp_send_els_handler_t)(unsigned long);
+
+/**
+ * struct zfcp_send_els - used to pass parameters to function zfcp_fsf_send_els
+ * @adapter: adapter where request is sent from
+ * @port: port where ELS is destinated (port reference count has to be increased)
+ * @d_id: destiniation id of port where request is sent to
+ * @req: scatter-gather list for request
+ * @resp: scatter-gather list for response
+ * @req_count: number of elements in request scatter-gather list
+ * @resp_count: number of elements in response scatter-gather list
+ * @handler: handler function (called for response to the request)
+ * @handler_data: data passed to handler function
+ * @completion: completion for synchronization purposes
+ * @ls_code: hex code of ELS command
+ * @status: used to pass error status to calling function
+ */
struct zfcp_send_els {
+ struct zfcp_adapter *adapter;
struct zfcp_port *port;
+ u32 d_id;
struct scatterlist *req;
struct scatterlist *resp;
unsigned int req_count;
int status;
};
-struct zfcp_status_read {
- struct fsf_status_read_buffer *buffer;
-};
-
-struct zfcp_fsf_done {
- struct completion *complete;
- int status;
-};
-
-/* request specific data */
-union zfcp_req_data {
- struct zfcp_exchange_config_data exchange_config_data;
- struct zfcp_open_port open_port;
- struct zfcp_close_port close_port;
- struct zfcp_open_unit open_unit;
- struct zfcp_close_unit close_unit;
- struct zfcp_close_physical_port close_physical_port;
- struct zfcp_send_fcp_command_task send_fcp_command_task;
- struct zfcp_send_fcp_command_task_management
- send_fcp_command_task_management;
- struct zfcp_abort_fcp_command abort_fcp_command;
- struct zfcp_send_ct *send_ct;
- struct zfcp_send_els *send_els;
- struct zfcp_status_read status_read;
-};
-
struct zfcp_qdio_queue {
struct qdio_buffer *buffer[QDIO_MAX_BUFFERS_PER_Q]; /* SBALs */
u8 free_index; /* index of next free bfr
atomic_t refcount; /* reference count */
wait_queue_head_t remove_wq; /* can be used to wait for
refcount drop to zero */
- wwn_t wwnn; /* WWNN */
- wwn_t wwpn; /* WWPN */
- fc_id_t s_id; /* N_Port ID */
+ wwn_t peer_wwnn; /* P2P peer WWNN */
+ wwn_t peer_wwpn; /* P2P peer WWPN */
+ u32 peer_d_id; /* P2P peer D_ID */
struct ccw_device *ccw_device; /* S/390 ccw device */
- u8 fc_service_class;
- u32 fc_topology; /* FC topology */
- u32 fc_link_speed; /* FC interface speed */
u32 hydra_version; /* Hydra version */
u32 fsf_lic_version;
- u32 supported_features;/* of FCP channel */
+ u32 adapter_features; /* FCP channel features */
+ u32 connection_features; /* host connection features */
u32 hardware_version; /* of FCP channel */
- u8 serial_number[32]; /* of hardware */
struct Scsi_Host *scsi_host; /* Pointer to mid-layer */
- unsigned short scsi_host_no; /* Assigned host number */
- unsigned char name[9];
struct list_head port_list_head; /* remote port list */
struct list_head port_remove_lh; /* head of ports to be
removed */
u32 ports; /* number of remote ports */
- struct timer_list scsi_er_timer; /* SCSI err recovery watch */
- struct list_head fsf_req_list_head; /* head of FSF req list */
- rwlock_t fsf_req_list_lock; /* lock for ops on list of
- FSF requests */
- atomic_t fsf_reqs_active; /* # active FSF reqs */
+ atomic_t reqs_active; /* # active FSF reqs */
+ unsigned long req_no; /* unique FSF req number */
+ struct list_head *req_list; /* list of pending reqs */
+ spinlock_t req_list_lock; /* request list lock */
struct zfcp_qdio_queue request_queue; /* request queue */
u32 fsf_req_seq_no; /* FSF cmnd seq number */
wait_queue_head_t request_wq; /* can be used to wait for
u32 erp_low_mem_count; /* nr of erp actions waiting
for memory */
struct zfcp_port *nameserver_port; /* adapter's nameserver */
- debug_info_t *erp_dbf; /* S/390 debug features */
- debug_info_t *abort_dbf;
- debug_info_t *in_els_dbf;
- debug_info_t *cmd_dbf;
- rwlock_t cmd_dbf_lock;
+ debug_info_t *erp_dbf;
+ debug_info_t *hba_dbf;
+ debug_info_t *san_dbf; /* debug feature areas */
+ debug_info_t *scsi_dbf;
+ spinlock_t erp_dbf_lock;
+ spinlock_t hba_dbf_lock;
+ spinlock_t san_dbf_lock;
+ spinlock_t scsi_dbf_lock;
+ struct zfcp_erp_dbf_record erp_dbf_buf;
+ struct zfcp_hba_dbf_record hba_dbf_buf;
+ struct zfcp_san_dbf_record san_dbf_buf;
+ struct zfcp_scsi_dbf_record scsi_dbf_buf;
struct zfcp_adapter_mempool pool; /* Adapter memory pools */
struct qdio_initialize qdio_init_data; /* for qdio_establish */
+ struct device generic_services; /* directory for WKA ports */
+ struct fc_host_statistics *fc_stats;
+ struct fsf_qtcb_bottom_port *stats_reset_data;
+ unsigned long stats_reset;
};
/*
*/
struct zfcp_port {
struct device sysfs_device; /* sysfs device */
+ struct fc_rport *rport; /* rport of fc transport class */
struct list_head list; /* list of remote ports */
atomic_t refcount; /* reference count */
wait_queue_head_t remove_wq; /* can be used to wait for
list */
u32 units; /* # of logical units in list */
atomic_t status; /* status of this remote port */
- scsi_id_t scsi_id; /* own SCSI ID */
wwn_t wwnn; /* WWNN if known */
wwn_t wwpn; /* WWPN */
- fc_id_t d_id; /* D_ID */
+ u32 d_id; /* D_ID */
u32 handle; /* handle assigned by FSF */
struct zfcp_erp_action erp_action; /* pending error recovery */
atomic_t erp_counter;
+ u32 maxframe_size;
+ u32 supported_classes;
};
/* the struct device sysfs_device must be at the beginning of this structure.
refcount drop to zero */
struct zfcp_port *port; /* remote port of unit */
atomic_t status; /* status of this logical unit */
- scsi_lun_t scsi_lun; /* own SCSI LUN */
+ unsigned int scsi_lun; /* own SCSI LUN */
fcp_lun_t fcp_lun; /* own FCP_LUN */
u32 handle; /* handle assigned by FSF */
struct scsi_device *device; /* scsi device struct pointer */
struct zfcp_erp_action erp_action; /* pending error recovery */
atomic_t erp_counter;
- atomic_t scsi_add_work; /* used to synchronize */
- wait_queue_head_t scsi_add_wq; /* wait for scsi_add_device */
};
/* FSF request */
struct zfcp_fsf_req {
struct list_head list; /* list of FSF requests */
+ unsigned long req_id; /* unique request ID */
struct zfcp_adapter *adapter; /* adapter request belongs to */
u8 sbal_number; /* nr of SBALs free for use */
u8 sbal_first; /* first SBAL for this request */
u32 fsf_command; /* FSF Command copy */
struct fsf_qtcb *qtcb; /* address of associated QTCB */
u32 seq_no; /* Sequence number of request */
- union zfcp_req_data data; /* Info fields of request */
+ unsigned long data; /* private data of request */
+ struct timer_list timer; /* used for erp or scsi er */
struct zfcp_erp_action *erp_action; /* used if this request is
issued on behalf of erp */
mempool_t *pool; /* used if request was alloacted
from emergency pool */
+ unsigned long long issued; /* request sent time (STCK) */
+ struct zfcp_unit *unit;
};
typedef void zfcp_fsf_req_handler_t(struct zfcp_fsf_req*);
/* driver data */
struct zfcp_data {
struct scsi_host_template scsi_host_template;
+ struct scsi_transport_template *scsi_transport_template;
atomic_t status; /* Module status flags */
struct list_head adapter_list_head; /* head of adapter list */
struct list_head adapter_remove_lh; /* head of adapters to be
removed */
- rwlock_t status_read_lock; /* for status read thread */
- struct list_head status_read_receive_head;
- struct list_head status_read_send_head;
- struct semaphore status_read_sema;
- wait_queue_head_t status_read_thread_wqh;
u32 adapters; /* # of adapters in list */
rwlock_t config_lock; /* serialises changes
to adapter/port/unit
lists */
struct semaphore config_sema; /* serialises configuration
changes */
- struct notifier_block reboot_notifier; /* used to register cleanup
- functions */
atomic_t loglevel; /* current loglevel */
char init_busid[BUS_ID_SIZE];
wwn_t init_wwpn;
fcp_lun_t init_fcp_lun;
+ char *driver_version;
+ struct kmem_cache *fsf_req_qtcb_cache;
+ struct kmem_cache *sr_buffer_cache;
+ struct kmem_cache *gid_pn_cache;
};
+/**
+ * struct zfcp_sg_list - struct describing a scatter-gather list
+ * @sg: pointer to array of (struct scatterlist)
+ * @count: number of elements in scatter-gather list
+ */
struct zfcp_sg_list {
struct scatterlist *sg;
unsigned int count;
#define ZFCP_POOL_DATA_GID_PN_NR 1
/* struct used by memory pools for fsf_requests */
-struct zfcp_fsf_req_pool_element {
+struct zfcp_fsf_req_qtcb {
struct zfcp_fsf_req fsf_req;
struct fsf_qtcb qtcb;
};
/********************** ZFCP SPECIFIC DEFINES ********************************/
-#define ZFCP_FSFREQ_CLEANUP_TIMEOUT HZ/10
-
-#define ZFCP_KNOWN 0x00000001
#define ZFCP_REQ_AUTO_CLEANUP 0x00000002
#define ZFCP_WAIT_FOR_SBAL 0x00000004
#define ZFCP_REQ_NO_QTCB 0x00000008
#define ZFCP_SET 0x00000100
#define ZFCP_CLEAR 0x00000200
-#define ZFCP_INTERRUPTIBLE 1
-#define ZFCP_UNINTERRUPTIBLE 0
-
#ifndef atomic_test_mask
#define atomic_test_mask(mask, target) \
((atomic_read(target) & mask) == mask)
if (ZFCP_LOG_CHECK(level)) { \
_zfcp_hex_dump(addr, count); \
}
-/*
- * Not yet optimal but useful:
- * Waits until the condition is met or the timeout occurs.
- * The condition may be a function call. This allows to
- * execute some additional instructions in addition
- * to a simple condition check.
- * The timeout is modified on exit and holds the remaining time.
- * Thus it is zero if a timeout ocurred, i.e. the condition was
- * not met in the specified interval.
- */
-#define __ZFCP_WAIT_EVENT_TIMEOUT(timeout, condition) \
-do { \
- set_current_state(TASK_UNINTERRUPTIBLE); \
- while (!(condition) && timeout) \
- timeout = schedule_timeout(timeout); \
- current->state = TASK_RUNNING; \
-} while (0);
-
-#define ZFCP_WAIT_EVENT_TIMEOUT(waitqueue, timeout, condition) \
-do { \
- wait_queue_t entry; \
- init_waitqueue_entry(&entry, current); \
- add_wait_queue(&waitqueue, &entry); \
- __ZFCP_WAIT_EVENT_TIMEOUT(timeout, condition) \
- remove_wait_queue(&waitqueue, &entry); \
-} while (0);
#define zfcp_get_busid_by_adapter(adapter) (adapter->ccw_device->dev.bus_id)
#define zfcp_get_busid_by_port(port) (zfcp_get_busid_by_adapter(port->adapter))
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