Add ctl-lun config option for consistency in HA setups.

This commit is contained in:
Alexander Motin 2015-09-15 13:37:48 +00:00
parent 0eea5207a0
commit 3933f7b112
5 changed files with 36 additions and 3 deletions

View File

@ -28,7 +28,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd September 7, 2015
.Dd September 15, 2015
.Dt CTL.CONF 5
.Os
.Sh NAME
@ -388,6 +388,10 @@ The default backend is block.
.It Ic blocksize Ar size
The blocksize visible to the initiator.
The default blocksize is 512.
.It Ic ctl-lun Ar lun_id
Global numeric identifier to use for a given LUN inside CTL.
By default CTL allocates those IDs dynamically, but explicit specification
may be needed for consistency in HA configurations.
.It Ic device-id Ar string
The SCSI Device Identification string presented to the initiator.
.It Ic option Ar name Ar value

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@ -1397,6 +1397,7 @@ lun_new(struct conf *conf, const char *name)
lun->l_name = checked_strdup(name);
TAILQ_INIT(&lun->l_options);
TAILQ_INSERT_TAIL(&conf->conf_luns, lun, l_next);
lun->l_ctl_lun = -1;
return (lun);
}

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@ -656,6 +656,11 @@ kernel_lun_add(struct lun *lun)
if (lun->l_size != 0)
req.reqdata.create.lun_size_bytes = lun->l_size;
if (lun->l_ctl_lun >= 0) {
req.reqdata.create.req_lun_id = lun->l_ctl_lun;
req.reqdata.create.flags |= CTL_LUN_FLAG_ID_REQ;
}
req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
req.reqdata.create.device_type = T_DIRECT;

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@ -57,8 +57,8 @@ extern void yyrestart(FILE *);
%}
%token ALIAS AUTH_GROUP AUTH_TYPE BACKEND BLOCKSIZE CHAP CHAP_MUTUAL
%token CLOSING_BRACKET DEBUG DEVICE_ID DISCOVERY_AUTH_GROUP DISCOVERY_FILTER
%token FOREIGN
%token CLOSING_BRACKET CTL_LUN DEBUG DEVICE_ID DISCOVERY_AUTH_GROUP
%token DISCOVERY_FILTER FOREIGN
%token INITIATOR_NAME INITIATOR_PORTAL ISNS_SERVER ISNS_PERIOD ISNS_TIMEOUT
%token LISTEN LISTEN_ISER LUN MAXPROC OFFLOAD OPENING_BRACKET OPTION
%token PATH PIDFILE PORT PORTAL_GROUP REDIRECT SEMICOLON SERIAL SIZE STR
@ -855,6 +855,8 @@ lun_entry:
|
lun_device_id
|
lun_ctl_lun
|
lun_option
|
lun_path
@ -912,6 +914,26 @@ lun_device_id: DEVICE_ID STR
}
;
lun_ctl_lun: CTL_LUN STR
{
uint64_t tmp;
if (expand_number($2, &tmp) != 0) {
yyerror("invalid numeric value");
free($2);
return (1);
}
if (lun->l_ctl_lun >= 0) {
log_warnx("ctl_lun for lun \"%s\" "
"specified more than once",
lun->l_name);
return (1);
}
lun_set_ctl_lun(lun, tmp);
}
;
lun_option: OPTION STR STR
{
struct lun_option *clo;

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@ -54,6 +54,7 @@ backend { return BACKEND; }
blocksize { return BLOCKSIZE; }
chap { return CHAP; }
chap-mutual { return CHAP_MUTUAL; }
ctl-lun { return CTL_LUN; }
debug { return DEBUG; }
device-id { return DEVICE_ID; }
discovery-auth-group { return DISCOVERY_AUTH_GROUP; }