X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fs390%2Fscsi%2Fzfcp_def.h;h=c69345f1f73c7901b40dfe5af88245a579a0da13;hb=2a0217d5c7d22d6dd28f8ae5d20b06d24dc426b8;hp=bda8c77b22daf6160235f3199b93c9953c4b4d51;hpb=96916090f488986a4ebb8e9ffa6a3b50881d5ccd;p=linux-2.6-omap-h63xx.git diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index bda8c77b22d..c69345f1f73 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -1,22 +1,9 @@ /* - * This file is part of the zfcp device driver for - * FCP adapters for IBM System z9 and zSeries. + * zfcp device driver * - * (C) Copyright IBM Corp. 2002, 2006 + * Global definitions for the zfcp device driver. * - * 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 - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Copyright IBM Corporation 2002, 2008 */ #ifndef ZFCP_DEF_H @@ -26,7 +13,6 @@ #include #include -#include #include #include #include @@ -53,32 +39,6 @@ /********************* GENERAL DEFINES *********************************/ -/* zfcp version number, it consists of major, minor, and patch-level number */ -#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 sg_virt(list); -} - -/** - * zfcp_address_to_sg - set up struct scatterlist from kernel address - * @address: kernel address - * @list: struct scatterlist - * @size: buffer size - */ -static inline void -zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size) -{ - sg_set_buf(list, address, size); -} - #define REQUEST_LIST_SIZE 128 /********************* SCSI SPECIFIC DEFINES *********************************/ @@ -93,11 +53,6 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size) #define ZFCP_DEVICE_MODEL 0x03 #define ZFCP_DEVICE_MODEL_PRIV 0x04 -/* allow as many chained SBALs as are supported by hardware */ -#define ZFCP_MAX_SBALS_PER_REQ FSF_MAX_SBALS_PER_REQ -#define ZFCP_MAX_SBALS_PER_CT_REQ FSF_MAX_SBALS_PER_REQ -#define ZFCP_MAX_SBALS_PER_ELS_REQ FSF_MAX_SBALS_PER_ELS_REQ - /* DMQ bug workaround: don't use last SBALE */ #define ZFCP_MAX_SBALES_PER_SBAL (QDIO_MAX_ELEMENTS_PER_BUFFER - 1) @@ -106,64 +61,26 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size) /* max. number of (data buffer) SBALEs in largest SBAL chain */ #define ZFCP_MAX_SBALES_PER_REQ \ - (ZFCP_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2) + (FSF_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 ZFCP_SBAL_TIMEOUT (5*HZ) - -#define ZFCP_TYPE2_RECOVERY_TIME 8 /* seconds */ - -/* queue polling (values in microseconds) */ -#define ZFCP_MAX_INPUT_THRESHOLD 5000 /* FIXME: tune */ -#define ZFCP_MAX_OUTPUT_THRESHOLD 1000 /* FIXME: tune */ -#define ZFCP_MIN_INPUT_THRESHOLD 1 /* ignored by QDIO layer */ -#define ZFCP_MIN_OUTPUT_THRESHOLD 1 /* ignored by QDIO layer */ - -#define QDIO_SCSI_QFMT 1 /* 1 for FSF */ -#define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer)) - /********************* FSF SPECIFIC DEFINES *********************************/ -#define ZFCP_ULP_INFO_VERSION 26 -#define ZFCP_QTCB_VERSION FSF_QTCB_CURRENT_VERSION /* ATTENTION: value must not be used by hardware */ #define FSF_QTCB_UNSOLICITED_STATUS 0x6305 -#define ZFCP_STATUS_READ_FAILED_THRESHOLD 3 -#define ZFCP_STATUS_READS_RECOM FSF_STATUS_READS_RECOM - -/* Do 1st retry in 1 second, then double the timeout for each following retry */ -#define ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP 1 -#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 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; - -#define ZFCP_FC_SERVICE_CLASS_DEFAULT FSF_CLASS_3 - /* timeout for name-server lookup (in seconds) */ #define ZFCP_NS_GID_PN_TIMEOUT 10 -/* largest SCSI command we can process */ -/* FCP-2 (FCP_CMND IU) allows up to (255-3+16) */ -#define ZFCP_MAX_SCSI_CMND_LENGTH 255 -/* maximum number of commands in LUN queue (tagged queueing) */ -#define ZFCP_CMND_PER_LUN 32 - /* task attribute values in FCP-2 FCP_CMND IU */ #define SIMPLE_Q 0 #define HEAD_OF_Q 1 @@ -184,7 +101,7 @@ typedef unsigned int fcp_dl_t; /* FCP(-2) FCP_CMND IU */ struct fcp_cmnd_iu { - fcp_lun_t fcp_lun; /* FCP logical unit number */ + u64 fcp_lun; /* FCP logical unit number */ u8 crn; /* command reference number */ u8 reserved0:5; /* reserved */ u8 task_attribute:3; /* task attribute */ @@ -224,9 +141,9 @@ struct fcp_rsp_iu { #define RSP_CODE_TASKMAN_FAILED 5 /* see fc-fs */ -#define LS_RSCN 0x61040000 -#define LS_LOGO 0x05000000 -#define LS_PLOGI 0x03000000 +#define LS_RSCN 0x61 +#define LS_LOGO 0x05 +#define LS_PLOGI 0x03 struct fcp_rscn_head { u8 command; @@ -259,14 +176,13 @@ struct fcp_rscn_element { struct fcp_logo { u32 command; u32 nport_did; - wwn_t nport_wwpn; + u64 nport_wwpn; } __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 @@ -274,13 +190,6 @@ struct fcp_logo { #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]; @@ -290,20 +199,6 @@ struct zfcp_ls_adisc { u32 nport_id; } __attribute__ ((packed)); -struct zfcp_ls_adisc_acc { - u8 code; - u8 field[3]; - u32 hard_nport_id; - u64 wwpn; - u64 wwnn; - u32 nport_id; -} __attribute__ ((packed)); - -struct zfcp_rc_entry { - u8 code; - const char *description; -}; - /* * FC-GS-2 stuff */ @@ -311,7 +206,10 @@ struct zfcp_rc_entry { #define ZFCP_CT_DIRECTORY_SERVICE 0xFC #define ZFCP_CT_NAME_SERVER 0x02 #define ZFCP_CT_SYNCHRONOUS 0x00 +#define ZFCP_CT_SCSI_FCP 0x08 +#define ZFCP_CT_UNABLE_TO_PERFORM_CMD 0x09 #define ZFCP_CT_GID_PN 0x0121 +#define ZFCP_CT_GPN_FT 0x0172 #define ZFCP_CT_MAX_SIZE 0x1020 #define ZFCP_CT_ACCEPT 0x8002 #define ZFCP_CT_REJECT 0x8001 @@ -321,107 +219,6 @@ struct zfcp_rc_entry { */ #define ZFCP_CT_TIMEOUT (3 * R_A_TOV) -/******************** LOGGING MACROS AND DEFINES *****************************/ - -/* - * Logging may be applied on certain kinds of driver operations - * independently. Additionally, different log-levels are supported for - * each of these areas. - */ - -#define ZFCP_NAME "zfcp" - -/* independent log areas */ -#define ZFCP_LOG_AREA_OTHER 0 -#define ZFCP_LOG_AREA_SCSI 1 -#define ZFCP_LOG_AREA_FSF 2 -#define ZFCP_LOG_AREA_CONFIG 3 -#define ZFCP_LOG_AREA_CIO 4 -#define ZFCP_LOG_AREA_QDIO 5 -#define ZFCP_LOG_AREA_ERP 6 -#define ZFCP_LOG_AREA_FC 7 - -/* log level values*/ -#define ZFCP_LOG_LEVEL_NORMAL 0 -#define ZFCP_LOG_LEVEL_INFO 1 -#define ZFCP_LOG_LEVEL_DEBUG 2 -#define ZFCP_LOG_LEVEL_TRACE 3 - -/* - * this allows removal of logging code by the preprocessor - * (the most detailed log level still to be compiled in is specified, - * higher log levels are removed) - */ -#define ZFCP_LOG_LEVEL_LIMIT ZFCP_LOG_LEVEL_TRACE - -/* get "loglevel" nibble assignment */ -#define ZFCP_GET_LOG_VALUE(zfcp_lognibble) \ - ((atomic_read(&zfcp_data.loglevel) >> (zfcp_lognibble<<2)) & 0xF) - -/* set "loglevel" nibble */ -#define ZFCP_SET_LOG_NIBBLE(value, zfcp_lognibble) \ - (value << (zfcp_lognibble << 2)) - -/* all log-level defaults are combined to generate initial log-level */ -#define ZFCP_LOG_LEVEL_DEFAULTS \ - (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) \ - ((ZFCP_GET_LOG_VALUE(ZFCP_LOG_AREA)) >= level) - -/* logging routine for zfcp */ -#define _ZFCP_LOG(fmt, args...) \ - printk(KERN_ERR ZFCP_NAME": %s(%d): " fmt, __func__, \ - __LINE__ , ##args) - -#define ZFCP_LOG(level, fmt, args...) \ -do { \ - if (ZFCP_LOG_CHECK(level)) \ - _ZFCP_LOG(fmt, ##args); \ -} while (0) - -#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_NORMAL -# 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); \ -} while (0) -#endif - -#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_INFO -# 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); \ -} while (0) -#endif - -#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_DEBUG -# 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...) do { } while (0) -#else -# define ZFCP_LOG_TRACE(fmt, args...) \ - ZFCP_LOG(ZFCP_LOG_LEVEL_TRACE, fmt , ##args) -#endif - /*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/ /* @@ -435,25 +232,23 @@ do { \ #define ZFCP_STATUS_COMMON_RUNNING 0x40000000 #define ZFCP_STATUS_COMMON_ERP_FAILED 0x20000000 #define ZFCP_STATUS_COMMON_UNBLOCKED 0x10000000 -#define ZFCP_STATUS_COMMON_OPENING 0x08000000 #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 +#define ZFCP_STATUS_COMMON_NOESC 0x00200000 /* adapter status */ #define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002 -#define ZFCP_STATUS_ADAPTER_REGISTERED 0x00000004 #define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008 #define ZFCP_STATUS_ADAPTER_HOST_CON_INIT 0x00000010 #define ZFCP_STATUS_ADAPTER_ERP_THREAD_UP 0x00000020 #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 /* FC-PH/FC-GS well-known address identifiers for generic services */ +#define ZFCP_DID_WKA 0xFFFFF0 #define ZFCP_DID_MANAGEMENT_SERVICE 0xFFFFFA #define ZFCP_DID_TIME_SERVICE 0xFFFFFB #define ZFCP_DID_DIRECTORY_SERVICE 0xFFFFFC @@ -465,29 +260,27 @@ do { \ #define ZFCP_STATUS_PORT_DID_DID 0x00000002 #define ZFCP_STATUS_PORT_PHYS_CLOSING 0x00000004 #define ZFCP_STATUS_PORT_NO_WWPN 0x00000008 -#define ZFCP_STATUS_PORT_NO_SCSI_ID 0x00000010 #define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020 -/* for ports with well known addresses */ -#define ZFCP_STATUS_PORT_WKA \ - (ZFCP_STATUS_PORT_NO_WWPN | \ - ZFCP_STATUS_PORT_NO_SCSI_ID) +/* well known address (WKA) port status*/ +enum zfcp_wka_status { + ZFCP_WKA_PORT_OFFLINE, + ZFCP_WKA_PORT_CLOSING, + ZFCP_WKA_PORT_OPENING, + ZFCP_WKA_PORT_ONLINE, +}; /* logical unit status */ -#define ZFCP_STATUS_UNIT_TEMPORARY 0x00000002 #define ZFCP_STATUS_UNIT_SHARED 0x00000004 #define ZFCP_STATUS_UNIT_READONLY 0x00000008 #define ZFCP_STATUS_UNIT_REGISTERED 0x00000010 #define ZFCP_STATUS_UNIT_SCSI_WORK_PENDING 0x00000020 /* FSF request status (this does not have a common part) */ -#define ZFCP_STATUS_FSFREQ_NOT_INIT 0x00000000 -#define ZFCP_STATUS_FSFREQ_POOL 0x00000001 #define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT 0x00000002 #define ZFCP_STATUS_FSFREQ_COMPLETED 0x00000004 #define ZFCP_STATUS_FSFREQ_ERROR 0x00000008 #define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010 -#define ZFCP_STATUS_FSFREQ_ABORTING 0x00000020 #define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040 #define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED 0x00000080 #define ZFCP_STATUS_FSFREQ_ABORTED 0x00000100 @@ -496,77 +289,6 @@ do { \ #define ZFCP_STATUS_FSFREQ_RETRY 0x00000800 #define ZFCP_STATUS_FSFREQ_DISMISSED 0x00001000 -/*********************** ERROR RECOVERY PROCEDURE DEFINES ********************/ - -#define ZFCP_MAX_ERPS 3 - -#define ZFCP_ERP_FSFREQ_TIMEOUT (30 * HZ) -#define ZFCP_ERP_MEMWAIT_TIMEOUT HZ - -#define ZFCP_STATUS_ERP_TIMEDOUT 0x10000000 -#define ZFCP_STATUS_ERP_CLOSE_ONLY 0x01000000 -#define ZFCP_STATUS_ERP_DISMISSING 0x00100000 -#define ZFCP_STATUS_ERP_DISMISSED 0x00200000 -#define ZFCP_STATUS_ERP_LOWMEM 0x00400000 - -#define ZFCP_ERP_STEP_UNINITIALIZED 0x00000000 -#define ZFCP_ERP_STEP_FSF_XCONFIG 0x00000001 -#define ZFCP_ERP_STEP_PHYS_PORT_CLOSING 0x00000010 -#define ZFCP_ERP_STEP_PORT_CLOSING 0x00000100 -#define ZFCP_ERP_STEP_NAMESERVER_OPEN 0x00000200 -#define ZFCP_ERP_STEP_NAMESERVER_LOOKUP 0x00000400 -#define ZFCP_ERP_STEP_PORT_OPENING 0x00000800 -#define ZFCP_ERP_STEP_UNIT_CLOSING 0x00001000 -#define ZFCP_ERP_STEP_UNIT_OPENING 0x00002000 - -/* Ordered by escalation level (necessary for proper erp-code operation) */ -#define ZFCP_ERP_ACTION_REOPEN_ADAPTER 0x4 -#define ZFCP_ERP_ACTION_REOPEN_PORT_FORCED 0x3 -#define ZFCP_ERP_ACTION_REOPEN_PORT 0x2 -#define ZFCP_ERP_ACTION_REOPEN_UNIT 0x1 - -#define ZFCP_ERP_ACTION_RUNNING 0x1 -#define ZFCP_ERP_ACTION_READY 0x2 - -#define ZFCP_ERP_SUCCEEDED 0x0 -#define ZFCP_ERP_FAILED 0x1 -#define ZFCP_ERP_CONTINUES 0x2 -#define ZFCP_ERP_EXIT 0x3 -#define ZFCP_ERP_DISMISSED 0x4 -#define ZFCP_ERP_NOMEM 0x5 - - -/******************** CFDC SPECIFIC STUFF *****************************/ - -/* Firewall data channel sense data record */ -struct zfcp_cfdc_sense_data { - u32 signature; /* Request signature */ - u32 devno; /* FCP adapter device number */ - u32 command; /* Command code */ - u32 fsf_status; /* FSF request status and status qualifier */ - u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE]; - u8 payloads[256]; /* Access conflicts list */ - u8 control_file[0]; /* Access control table */ -}; - -#define ZFCP_CFDC_SIGNATURE 0xCFDCACDF - -#define ZFCP_CFDC_CMND_DOWNLOAD_NORMAL 0x00010001 -#define ZFCP_CFDC_CMND_DOWNLOAD_FORCE 0x00010101 -#define ZFCP_CFDC_CMND_FULL_ACCESS 0x00000201 -#define ZFCP_CFDC_CMND_RESTRICTED_ACCESS 0x00000401 -#define ZFCP_CFDC_CMND_UPLOAD 0x00010002 - -#define ZFCP_CFDC_DOWNLOAD 0x00000001 -#define ZFCP_CFDC_UPLOAD 0x00000002 -#define ZFCP_CFDC_WITH_CONTROL_FILE 0x00010000 - -#define ZFCP_CFDC_DEV_NAME "zfcp_cfdc" -#define ZFCP_CFDC_DEV_MAJOR MISC_MAJOR -#define ZFCP_CFDC_DEV_MINOR MISC_DYNAMIC_MINOR - -#define ZFCP_CFDC_MAX_CONTROL_FILE_SIZE 127 * 1024 - /************************* STRUCTURE DEFINITIONS *****************************/ struct zfcp_fsf_req; @@ -603,7 +325,7 @@ struct ct_hdr { * a port name is required */ struct ct_iu_gid_pn_req { struct ct_hdr header; - wwn_t wwpn; + u64 wwpn; } __attribute__ ((packed)); /* FS_ACC IU and data unit for GID_PN nameserver request */ @@ -612,31 +334,27 @@ struct ct_iu_gid_pn_resp { u32 d_id; } __attribute__ ((packed)); -typedef void (*zfcp_send_ct_handler_t)(unsigned long); - /** * struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct - * @port: port where the request is sent to + * @wka_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 zfcp_wka_port *wka_port; struct scatterlist *req; struct scatterlist *resp; unsigned int req_count; unsigned int resp_count; - zfcp_send_ct_handler_t handler; + void (*handler)(unsigned long); unsigned long handler_data; - mempool_t *pool; int timeout; struct completion *completion; int status; @@ -652,8 +370,6 @@ struct zfcp_gid_pn_data { struct zfcp_port *port; }; -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 @@ -677,22 +393,28 @@ struct zfcp_send_els { struct scatterlist *resp; unsigned int req_count; unsigned int resp_count; - zfcp_send_els_handler_t handler; + void (*handler)(unsigned long); unsigned long handler_data; struct completion *completion; int ls_code; int status; }; +struct zfcp_wka_port { + struct zfcp_adapter *adapter; + wait_queue_head_t completion_wq; + enum zfcp_wka_status status; + atomic_t refcount; + u32 d_id; + u32 handle; + struct mutex mutex; + struct delayed_work work; +}; + struct zfcp_qdio_queue { - struct qdio_buffer *buffer[QDIO_MAX_BUFFERS_PER_Q]; /* SBALs */ - u8 free_index; /* index of next free bfr - in queue (free_count>0) */ - atomic_t free_count; /* number of free buffers - in queue */ - rwlock_t queue_lock; /* lock for operations on queue */ - int distance_from_int; /* SBALs used since PCI indication - was last set */ + struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q]; + u8 first; /* index of next free bfr in queue */ + atomic_t count; /* number of free buffers in queue */ }; struct zfcp_erp_action { @@ -701,21 +423,39 @@ struct zfcp_erp_action { struct zfcp_adapter *adapter; /* device which should be recovered */ struct zfcp_port *port; struct zfcp_unit *unit; - volatile u32 status; /* recovery status */ + u32 status; /* recovery status */ u32 step; /* active step of this erp action */ struct zfcp_fsf_req *fsf_req; /* fsf request currently pending for this action */ struct timer_list timer; }; +struct fsf_latency_record { + u32 min; + u32 max; + u64 sum; +}; + +struct latency_cont { + struct fsf_latency_record channel; + struct fsf_latency_record fabric; + u64 counter; +}; + +struct zfcp_latencies { + struct latency_cont read; + struct latency_cont write; + struct latency_cont cmd; + spinlock_t lock; +}; struct zfcp_adapter { struct list_head list; /* list of adapters */ atomic_t refcount; /* reference count */ wait_queue_head_t remove_wq; /* can be used to wait for refcount drop to zero */ - wwn_t peer_wwnn; /* P2P peer WWNN */ - wwn_t peer_wwpn; /* P2P peer WWPN */ + u64 peer_wwnn; /* P2P peer WWNN */ + u64 peer_wwpn; /* P2P peer WWPN */ u32 peer_d_id; /* P2P peer D_ID */ struct ccw_device *ccw_device; /* S/390 ccw device */ u32 hydra_version; /* Hydra version */ @@ -723,24 +463,25 @@ struct zfcp_adapter { u32 adapter_features; /* FCP channel features */ u32 connection_features; /* host connection features */ u32 hardware_version; /* of FCP channel */ + u16 timer_ticks; /* time int for a tick */ struct Scsi_Host *scsi_host; /* Pointer to mid-layer */ 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 */ - 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 */ + struct zfcp_qdio_queue req_q; /* request queue */ + spinlock_t req_q_lock; /* for operations on queue */ + int req_q_pci_batch; /* SBALs since PCI indication + was last set */ u32 fsf_req_seq_no; /* FSF cmnd seq number */ wait_queue_head_t request_wq; /* can be used to wait for more avaliable SBALs */ - struct zfcp_qdio_queue response_queue; /* response queue */ + struct zfcp_qdio_queue resp_q; /* response queue */ rwlock_t abort_lock; /* Protects against SCSI stack abort/command completion races */ - u16 status_read_failed; /* # failed status reads */ + atomic_t stat_miss; /* # missing status reads*/ + struct work_struct stat_work; atomic_t status; /* status of this adapter */ struct list_head erp_ready_head; /* error recovery for this adapter/devices */ @@ -755,7 +496,7 @@ struct zfcp_adapter { actions */ u32 erp_low_mem_count; /* nr of erp actions waiting for memory */ - struct zfcp_port *nameserver_port; /* adapter's nameserver */ + struct zfcp_wka_port nsp; /* adapter's nameserver */ debug_info_t *rec_dbf; debug_info_t *hba_dbf; debug_info_t *san_dbf; /* debug feature areas */ @@ -770,17 +511,13 @@ struct zfcp_adapter { 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 work_struct scan_work; + atomic_t qdio_outb_full; /* queue full incidents */ }; -/* - * the struct device sysfs_device must be at the beginning of this structure. - * pointer to struct device is used to free port structure in release function - * of the device. don't change! - */ struct zfcp_port { struct device sysfs_device; /* sysfs device */ struct fc_rport *rport; /* rport of fc transport class */ @@ -790,24 +527,18 @@ struct zfcp_port { refcount drop to zero */ struct zfcp_adapter *adapter; /* adapter used to access port */ struct list_head unit_list_head; /* head of logical unit list */ - struct list_head unit_remove_lh; /* head of luns to be removed - list */ - u32 units; /* # of logical units in list */ atomic_t status; /* status of this remote port */ - wwn_t wwnn; /* WWNN if known */ - wwn_t wwpn; /* WWPN */ + u64 wwnn; /* WWNN if known */ + u64 wwpn; /* WWPN */ 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; + struct work_struct gid_pn_work; }; -/* the struct device sysfs_device must be at the beginning of this structure. - * pointer to struct device is used to free unit structure in release function - * of the device. don't change! - */ struct zfcp_unit { struct device sysfs_device; /* sysfs device */ struct list_head list; /* list of logical units */ @@ -816,12 +547,12 @@ struct zfcp_unit { refcount drop to zero */ struct zfcp_port *port; /* remote port of unit */ atomic_t status; /* status of this logical unit */ - unsigned int scsi_lun; /* own SCSI LUN */ - fcp_lun_t fcp_lun; /* own FCP_LUN */ + u64 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; + struct zfcp_latencies latencies; }; /* FSF request */ @@ -831,19 +562,19 @@ struct zfcp_fsf_req { 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 */ - u8 sbal_last; /* last possible SBAL for + u8 sbal_last; /* last SBAL for this request */ + u8 sbal_limit; /* last possible SBAL for this reuest */ - u8 sbal_curr; /* current SBAL during creation - of request */ u8 sbale_curr; /* current SBALE during creation of request */ + u8 sbal_response; /* SBAL used in interrupt */ wait_queue_head_t completion_wq; /* can be used by a routine to wait for completion */ - volatile u32 status; /* status of this request */ + u32 status; /* status of this request */ u32 fsf_command; /* FSF Command copy */ struct fsf_qtcb *qtcb; /* address of associated QTCB */ u32 seq_no; /* Sequence number of request */ - unsigned long data; /* private data of request */ + void *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 */ @@ -851,51 +582,29 @@ struct zfcp_fsf_req { from emergency pool */ unsigned long long issued; /* request sent time (STCK) */ struct zfcp_unit *unit; + void (*handler)(struct zfcp_fsf_req *); }; -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 */ - u32 adapters; /* # of adapters in list */ rwlock_t config_lock; /* serialises changes to adapter/port/unit lists */ struct semaphore config_sema; /* serialises configuration changes */ 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; + char init_busid[20]; + u64 init_wwpn; + u64 init_fcp_lun; + struct kmem_cache *fsf_req_qtcb_cache; + struct kmem_cache *sr_buffer_cache; + struct kmem_cache *gid_pn_cache; + struct workqueue_struct *work_queue; }; -/* number of elements for various memory pools */ -#define ZFCP_POOL_FSF_REQ_ERP_NR 1 -#define ZFCP_POOL_FSF_REQ_SCSI_NR 1 -#define ZFCP_POOL_FSF_REQ_ABORT_NR 1 -#define ZFCP_POOL_STATUS_READ_NR ZFCP_STATUS_READS_RECOM -#define ZFCP_POOL_DATA_GID_PN_NR 1 - /* struct used by memory pools for fsf_requests */ struct zfcp_fsf_req_qtcb { struct zfcp_fsf_req fsf_req; @@ -905,26 +614,12 @@ struct zfcp_fsf_req_qtcb { /********************** ZFCP SPECIFIC DEFINES ********************************/ #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 -#ifndef atomic_test_mask -#define atomic_test_mask(mask, target) \ - ((atomic_read(target) & mask) == mask) -#endif - -extern void _zfcp_hex_dump(char *, int); -#define ZFCP_HEX_DUMP(level, addr, count) \ - if (ZFCP_LOG_CHECK(level)) { \ - _zfcp_hex_dump(addr, count); \ - } - #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)) -#define zfcp_get_busid_by_unit(unit) (zfcp_get_busid_by_port(unit->port)) /* * Helper functions for request ID management. @@ -934,15 +629,6 @@ static inline int zfcp_reqlist_hash(unsigned long req_id) return req_id % REQUEST_LIST_SIZE; } -static inline void zfcp_reqlist_add(struct zfcp_adapter *adapter, - struct zfcp_fsf_req *fsf_req) -{ - unsigned int idx; - - idx = zfcp_reqlist_hash(fsf_req->req_id); - list_add_tail(&fsf_req->list, &adapter->req_list[idx]); -} - static inline void zfcp_reqlist_remove(struct zfcp_adapter *adapter, struct zfcp_fsf_req *fsf_req) { @@ -993,12 +679,6 @@ zfcp_unit_put(struct zfcp_unit *unit) wake_up(&unit->remove_wq); } -static inline void -zfcp_unit_wait(struct zfcp_unit *unit) -{ - wait_event(unit->remove_wq, atomic_read(&unit->refcount) == 0); -} - static inline void zfcp_port_get(struct zfcp_port *port) { @@ -1012,12 +692,6 @@ zfcp_port_put(struct zfcp_port *port) wake_up(&port->remove_wq); } -static inline void -zfcp_port_wait(struct zfcp_port *port) -{ - wait_event(port->remove_wq, atomic_read(&port->refcount) == 0); -} - static inline void zfcp_adapter_get(struct zfcp_adapter *adapter) { @@ -1031,10 +705,4 @@ zfcp_adapter_put(struct zfcp_adapter *adapter) wake_up(&adapter->remove_wq); } -static inline void -zfcp_adapter_wait(struct zfcp_adapter *adapter) -{ - wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0); -} - #endif /* ZFCP_DEF_H */