X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fs390%2Fscsi%2Fzfcp_def.h;h=32933ed54b8a05dbe3534ac90395bbbf3d1ee283;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=6eba56cd89ba8dbb829ce9c012af5cb927940d41;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 6eba56cd8..32933ed54 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -1,19 +1,8 @@ /* - * - * 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 - * Raimund Schroeder - * Aron Zeh - * Wolfgang Taphorn - * Stefan Bader - * Heiko Carstens - * Andreas Herrmann - * Volker Sameske + * (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 @@ -30,7 +19,6 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - #ifndef ZFCP_DEF_H #define ZFCP_DEF_H @@ -43,6 +31,10 @@ #include #include #include +#include +#include +#include +#include #include #include #include @@ -50,21 +42,17 @@ #include #include #include -#include "../../fc4/fc.h" -#include "zfcp_fsf.h" #include #include #include #include -#include -#include -#include +#include "zfcp_fsf.h" /********************* GENERAL DEFINES *********************************/ /* zfcp version number, it consists of major, minor, and patch-level number */ -#define ZFCP_VERSION "4.5.0" +#define ZFCP_VERSION "4.8.0" /** * zfcp_sg_to_address - determine kernel address from struct scatterlist @@ -89,14 +77,10 @@ zfcp_address_to_sg(void *address, struct scatterlist *list) list->offset = ((unsigned long) address) & (PAGE_SIZE - 1); } -/********************* SCSI SPECIFIC DEFINES *********************************/ - -/* 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 REQUEST_LIST_SIZE 128 -#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 *****************************/ @@ -123,6 +107,10 @@ typedef u32 scsi_lun_t; (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)) @@ -153,7 +141,7 @@ typedef u32 scsi_lun_t; #define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES 7 /* timeout value for "default timer" for fsf requests */ -#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ); +#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ) /*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/ @@ -233,8 +221,9 @@ struct fcp_rsp_iu { #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; @@ -263,13 +252,6 @@ struct fcp_rscn_element { #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; @@ -507,9 +489,6 @@ struct zfcp_rc_entry { #define ZFCP_NAME "zfcp" -/* read-only LUN sharing switch initial value */ -#define ZFCP_RO_LUN_SHARING_DEFAULTS 0 - /* independent log areas */ #define ZFCP_LOG_AREA_OTHER 0 #define ZFCP_LOG_AREA_SCSI 1 @@ -568,7 +547,7 @@ do { \ } 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 { \ @@ -578,7 +557,7 @@ do { \ #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 { \ @@ -588,14 +567,14 @@ do { \ #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) @@ -608,7 +587,6 @@ do { \ * and unit */ #define ZFCP_COMMON_FLAGS 0xfff00000 -#define ZFCP_SPECIFIC_FLAGS 0x000fffff /* common status bits */ #define ZFCP_STATUS_COMMON_REMOVE 0x80000000 @@ -633,11 +611,6 @@ do { \ #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) - - /* FC-PH/FC-GS well-known address identifiers for generic services */ #define ZFCP_DID_MANAGEMENT_SERVICE 0xFFFFFA #define ZFCP_DID_TIME_SERVICE 0xFFFFFB @@ -652,7 +625,6 @@ do { \ #define ZFCP_STATUS_PORT_NO_WWPN 0x00000008 #define ZFCP_STATUS_PORT_NO_SCSI_ID 0x00000010 #define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020 -#define ZFCP_STATUS_PORT_ACCESS_DENIED 0x00000040 /* for ports with well known addresses */ #define ZFCP_STATUS_PORT_WKA \ @@ -811,7 +783,6 @@ typedef void (*zfcp_send_ct_handler_t)(unsigned long); * @handler_data: data passed to handler function * @pool: pointer to memory pool for ct request structure * @timeout: FSF timeout for this request - * @timer: timer (e.g. for request initiated by erp) * @completion: completion for synchronization purposes * @status: used to pass error status to calling function */ @@ -825,7 +796,6 @@ struct zfcp_send_ct { unsigned long handler_data; mempool_t *pool; int timeout; - struct timer_list *timer; struct completion *completion; int status; }; @@ -853,7 +823,6 @@ typedef void (*zfcp_send_els_handler_t)(unsigned long); * @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 - * @timer: timer (e.g. for request initiated by erp) * @completion: completion for synchronization purposes * @ls_code: hex code of ELS command * @status: used to pass error status to calling function @@ -868,7 +837,6 @@ struct zfcp_send_els { unsigned int resp_count; zfcp_send_els_handler_t handler; unsigned long handler_data; - struct timer_list *timer; struct completion *completion; int ls_code; int status; @@ -908,24 +876,20 @@ struct zfcp_adapter { 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 hydra_version; /* Hydra version */ u32 fsf_lic_version; u32 adapter_features; /* FCP channel features */ u32 connection_features; /* host connection features */ u32 hardware_version; /* of FCP channel */ 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 */ - spinlock_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 @@ -994,6 +958,8 @@ struct zfcp_port { 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. @@ -1008,7 +974,7 @@ struct zfcp_unit { 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 */ @@ -1019,6 +985,7 @@ struct zfcp_unit { /* 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 */ @@ -1035,6 +1002,7 @@ struct zfcp_fsf_req { struct fsf_qtcb *qtcb; /* address of associated QTCB */ u32 seq_no; /* Sequence number 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 @@ -1048,15 +1016,11 @@ 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 @@ -1068,6 +1032,9 @@ struct zfcp_data { 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; }; /** @@ -1088,16 +1055,13 @@ struct zfcp_sg_list { #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 @@ -1105,9 +1069,6 @@ struct zfcp_fsf_req_pool_element { #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)