c3e7ba3e6d
For ZVOL-backed LUNs this allows to inform initiators if storage's used or available spaces get above/below the configured thresholds. MFC after: 2 weeks Sponsored by: iXsystems, Inc.
216 lines
6.1 KiB
C
216 lines
6.1 KiB
C
/*-
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* Copyright (c) 2003 Silicon Graphics International Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.h#5 $
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* $FreeBSD$
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*/
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/*
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* Function definitions used both within CTL and potentially in various CTL
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* clients.
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*
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* Author: Ken Merry <ken@FreeBSD.org>
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*/
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#ifndef _CTL_H_
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#define _CTL_H_
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#define ctl_min(x,y) (((x) < (y)) ? (x) : (y))
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#define CTL_RETVAL_COMPLETE 0
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#define CTL_RETVAL_QUEUED 1
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#define CTL_RETVAL_ALLOCATED 2
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#define CTL_RETVAL_ERROR 3
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typedef enum {
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CTL_PORT_NONE = 0x00,
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CTL_PORT_FC = 0x01,
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CTL_PORT_SCSI = 0x02,
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CTL_PORT_IOCTL = 0x04,
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CTL_PORT_INTERNAL = 0x08,
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CTL_PORT_ISCSI = 0x10,
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CTL_PORT_SAS = 0x20,
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CTL_PORT_ALL = 0xff,
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CTL_PORT_ISC = 0x100 // FC port for inter-shelf communication
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} ctl_port_type;
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struct ctl_port_entry {
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ctl_port_type port_type;
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char port_name[64];
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int32_t targ_port;
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int physical_port;
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int virtual_port;
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u_int flags;
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#define CTL_PORT_WWNN_VALID 0x01
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#define CTL_PORT_WWPN_VALID 0x02
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uint64_t wwnn;
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uint64_t wwpn;
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int online;
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};
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struct ctl_modepage_header {
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uint8_t page_code;
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uint8_t subpage;
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int32_t len_used;
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int32_t len_left;
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};
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struct ctl_modepage_aps {
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struct ctl_modepage_header header;
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uint8_t lock_active;
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};
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union ctl_modepage_info {
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struct ctl_modepage_header header;
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struct ctl_modepage_aps aps;
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};
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/*
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* Serial number length, for VPD page 0x80.
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*/
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#define CTL_SN_LEN 16
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/*
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* Device ID length, for VPD page 0x83.
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*/
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#define CTL_DEVID_LEN 64
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#define CTL_DEVID_MIN_LEN 16
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/*
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* WWPN length, for VPD page 0x83.
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*/
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#define CTL_WWPN_LEN 8
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#define CTL_DRIVER_NAME_LEN 32
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/*
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* Unit attention types. ASC/ASCQ values for these should be placed in
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* ctl_build_ua. These are also listed in order of reporting priority.
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* i.e. a poweron UA is reported first, bus reset second, etc.
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*/
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typedef enum {
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CTL_UA_NONE = 0x0000,
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CTL_UA_POWERON = 0x0001,
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CTL_UA_BUS_RESET = 0x0002,
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CTL_UA_TARG_RESET = 0x0004,
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CTL_UA_I_T_NEXUS_LOSS = 0x0008,
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CTL_UA_LUN_RESET = 0x0010,
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CTL_UA_LUN_CHANGE = 0x0020,
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CTL_UA_MODE_CHANGE = 0x0040,
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CTL_UA_LOG_CHANGE = 0x0080,
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CTL_UA_LVD = 0x0100,
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CTL_UA_SE = 0x0200,
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CTL_UA_RES_PREEMPT = 0x0400,
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CTL_UA_RES_RELEASE = 0x0800,
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CTL_UA_REG_PREEMPT = 0x1000,
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CTL_UA_ASYM_ACC_CHANGE = 0x2000,
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CTL_UA_CAPACITY_CHANGED = 0x4000,
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CTL_UA_THIN_PROV_THRES = 0x8000
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} ctl_ua_type;
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#ifdef _KERNEL
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MALLOC_DECLARE(M_CTL);
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struct ctl_page_index;
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#ifdef SYSCTL_DECL /* from sysctl.h */
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SYSCTL_DECL(_kern_cam_ctl);
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#endif
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/*
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* Call these routines to enable or disable front end ports.
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*/
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int ctl_port_enable(ctl_port_type port_type);
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int ctl_port_disable(ctl_port_type port_type);
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/*
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* This routine grabs a list of frontend ports.
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*/
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int ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced,
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int *num_entries_filled, int *num_entries_dropped,
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ctl_port_type port_type, int no_virtual);
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/*
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* Put a string into an sbuf, escaping characters that are illegal or not
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* recommended in XML. Note this doesn't escape everything, just > < and &.
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*/
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int ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size);
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int ctl_ffz(uint32_t *mask, uint32_t size);
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int ctl_set_mask(uint32_t *mask, uint32_t bit);
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int ctl_clear_mask(uint32_t *mask, uint32_t bit);
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int ctl_is_set(uint32_t *mask, uint32_t bit);
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int ctl_caching_sp_handler(struct ctl_scsiio *ctsio,
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struct ctl_page_index *page_index, uint8_t *page_ptr);
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int ctl_control_page_handler(struct ctl_scsiio *ctsio,
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struct ctl_page_index *page_index,
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uint8_t *page_ptr);
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/**
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int ctl_failover_sp_handler(struct ctl_scsiio *ctsio,
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struct ctl_page_index *page_index,
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uint8_t *page_ptr);
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**/
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int ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio,
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struct ctl_page_index *page_index,
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int pc);
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int ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio,
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struct ctl_page_index *page_index,
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uint8_t *page_ptr);
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int ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio,
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struct ctl_page_index *page_index,
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int pc);
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int ctl_config_move_done(union ctl_io *io);
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void ctl_datamove(union ctl_io *io);
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void ctl_done(union ctl_io *io);
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void ctl_data_submit_done(union ctl_io *io);
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void ctl_config_write_done(union ctl_io *io);
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void ctl_portDB_changed(int portnum);
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void ctl_init_isc_msg(void);
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/*
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* KPI to manipulate LUN/port options
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*/
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struct ctl_option {
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STAILQ_ENTRY(ctl_option) links;
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char *name;
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char *value;
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};
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typedef STAILQ_HEAD(ctl_options, ctl_option) ctl_options_t;
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struct ctl_be_arg;
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void ctl_init_opts(ctl_options_t *opts, int num_args, struct ctl_be_arg *args);
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void ctl_free_opts(ctl_options_t *opts);
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char * ctl_get_opt(ctl_options_t *opts, const char *name);
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#endif /* _KERNEL */
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#endif /* _CTL_H_ */
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/*
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* vim: ts=8
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*/
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