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iscsi: Add blockdev-add support 

This adds blockdev-add support for iscsi devices.

Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
This commit is contained in:
Kevin Wolf 2016-12-08 14:23:11 +01:00 committed by Jeff Cody
parent 1d56010482
commit 31eb1202d3
2 changed files with 79 additions and 10 deletions
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14
block/iscsi.c
View File

@ -1291,13 +1291,13 @@ static void apply_header_digest(struct iscsi_context *iscsi, QemuOpts *opts,
digest = qemu_opt_get(opts, "header-digest");
if (!digest) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE_CRC32C);
} else if (!strcmp(digest, "CRC32C")) {
} else if (!strcmp(digest, "crc32c")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_CRC32C);
} else if (!strcmp(digest, "NONE")) {
} else if (!strcmp(digest, "none")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE);
} else if (!strcmp(digest, "CRC32C-NONE")) {
} else if (!strcmp(digest, "crc32c-none")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_CRC32C_NONE);
} else if (!strcmp(digest, "NONE-CRC32C")) {
} else if (!strcmp(digest, "none-crc32c")) {
iscsi_set_header_digest(iscsi, ISCSI_HEADER_DIGEST_NONE_CRC32C);
} else {
error_setg(errp, "Invalid header-digest setting : %s", digest);
@ -1576,7 +1576,11 @@ static void iscsi_parse_iscsi_option(const char *target, QDict *options)
header_digest = qemu_opt_get(opts, "header-digest");
if (header_digest) {
qdict_set_default_str(options, "header-digest", header_digest);
/* -iscsi takes upper case values, but QAPI only supports lower case
* enum constant names, so we have to convert here. */
char *qapi_value = g_ascii_strdown(header_digest, -1);
qdict_set_default_str(options, "header-digest", qapi_value);
g_free(qapi_value);
}
timeout = qemu_opt_get(opts, "timeout");

75
qapi/block-core.json
View File

@ -2110,16 +2110,17 @@
# @nfs: Since 2.8
# @replication: Since 2.8
# @ssh: Since 2.8
# @iscsi: Since 2.9
#
# Since: 2.0
##
{ 'enum': 'BlockdevDriver',
'data': [ 'archipelago', 'blkdebug', 'blkverify', 'bochs', 'cloop',
'dmg', 'file', 'ftp', 'ftps', 'gluster', 'host_cdrom',
'host_device', 'http', 'https', 'luks', 'nbd', 'nfs', 'null-aio',
'null-co', 'parallels', 'qcow', 'qcow2', 'qed', 'quorum', 'raw',
'replication', 'ssh', 'vdi', 'vhdx', 'vmdk', 'vpc',
'vvfat' ] }
'host_device', 'http', 'https', 'iscsi', 'luks', 'nbd', 'nfs',
'null-aio', 'null-co', 'parallels', 'qcow', 'qcow2', 'qed',
'quorum', 'raw', 'replication', 'ssh', 'vdi', 'vhdx', 'vmdk',
'vpc', 'vvfat' ] }
##
# @BlockdevOptionsFile:
@ -2600,6 +2601,70 @@
'*debug': 'int',
'*logfile': 'str' } }
##
# @IscsiTransport:
#
# An enumeration of libiscsi transport types
#
# Since: 2.9
##
{ 'enum': 'IscsiTransport',
'data': [ 'tcp', 'iser' ] }
##
# @IscsiHeaderDigest:
#
# An enumeration of header digests supported by libiscsi
#
# Since: 2.9
##
{ 'enum': 'IscsiHeaderDigest',
'prefix': 'QAPI_ISCSI_HEADER_DIGEST',
'data': [ 'crc32c', 'none', 'crc32c-none', 'none-crc32c' ] }
##
# @BlockdevOptionsIscsi:
#
# @transport The iscsi transport type
#
# @portal The address of the iscsi portal
#
# @target The target iqn name
#
# @lun #optional LUN to connect to. Defaults to 0.
#
# @user #optional User name to log in with. If omitted, no CHAP
# authentication is performed.
#
# @password-secret #optional The ID of a QCryptoSecret object providing
# the password for the login. This option is required if
# @user is specified.
#
# @initiator-name #optional The iqn name we want to identify to the target
# as. If this option is not specified, an initiator name is
# generated automatically.
#
# @header-digest #optional The desired header digest. Defaults to
# none-crc32c.
#
# @timeout #optional Timeout in seconds after which a request will
# timeout. 0 means no timeout and is the default.
#
# Driver specific block device options for iscsi
#
# Since: 2.9
##
{ 'struct': 'BlockdevOptionsIscsi',
'data': { 'transport': 'IscsiTransport',
'portal': 'str',
'target': 'str',
'*lun': 'int',
'*user': 'str',
'*password-secret': 'str',
'*initiator-name': 'str',
'*header-digest': 'IscsiHeaderDigest',
'*timeout': 'int' } }
##
# @ReplicationMode:
#
@ -2786,7 +2851,7 @@
'host_device':'BlockdevOptionsFile',
'http': 'BlockdevOptionsCurl',
'https': 'BlockdevOptionsCurl',
# TODO iscsi: Wait for structured options
'iscsi': 'BlockdevOptionsIscsi',
'luks': 'BlockdevOptionsLUKS',
'nbd': 'BlockdevOptionsNbd',
'nfs': 'BlockdevOptionsNfs',