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nodedev: Fabric name must not be required for fc_host capability

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fabric_name is one of many fc_host attributes in Linux that is optional
and left to the low-level driver to decide if it is implemented.
The zfcp device driver does not provide a fabric name for an fcp host.

This patch removes the requirement for a fabric name by making it optional.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
This commit is contained in:
Boris Fiuczynski 2017-01-16 14:27:34 +01:00 committed by John Ferlan
parent d59226926e
commit 666bee3973
8 changed files with 63 additions and 12 deletions
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2
docs/formatnode.html.in
View File

@ -254,7 +254,7 @@
number of vport in use. <code>max_vports</code> shows the
maximum vports the HBA supports. "fc_host" implies following
sub-elements: <code>wwnn</code>, <code>wwpn</code>, and
<code>fabric_wwn</code>.
optionally <code>fabric_wwn</code>.
</dd>
</dl>
</dd>

13
docs/news.xml
View File

@ -18,7 +18,18 @@
<change/>
</section>
<section title="Bug fixes">
<change/>
<change>
<summary>
nodedev: Fabric name must not be required for fc_host capability
</summary>
<description>
fabric_name is one of many fc_host attributes in Linux that is
optional and left to the low-level driver to decide if it is
implemented. For example the zfcp device driver does not provide a
fabric name for an fcp host. The requirement for the existence of
a fabric name has been removed by making it optional.
</description>
</change>
</section>
</release>
<release version="v3.0.0" date="2017-01-17">

2
docs/schemas/nodedev.rng
View File

@ -367,9 +367,11 @@
<ref name='wwn'/>
</element>
<optional>
<element name='fabric_wwn'>
<ref name='wwn'/>
</element>
</optional>
</define>
<define name='capsvports'>

7
src/node_device/node_device_linux_sysfs.c
View File

@ -72,14 +72,11 @@ nodeDeviceSysfsGetSCSIHostCaps(virNodeDevCapDataPtr d)
VIR_FREE(d->scsi_host.wwnn);
VIR_STEAL_PTR(d->scsi_host.wwnn, tmp);
if (!(tmp = virReadFCHost(NULL, d->scsi_host.host, "fabric_name"))) {
VIR_WARN("Failed to read fabric WWN for host%d",
d->scsi_host.host);
goto cleanup;
}
if ((tmp = virReadFCHost(NULL, d->scsi_host.host, "fabric_name"))) {
VIR_FREE(d->scsi_host.fabric_wwn);
VIR_STEAL_PTR(d->scsi_host.fabric_wwn, tmp);
}
}
if (virIsCapableVport(NULL, d->scsi_host.host)) {
d->scsi_host.flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS;

1
tests/fchostdata/fc_host/host6/node_name Normal file
View File

@ -0,0 +1 @@
0x2002001b32a9da4e

1
tests/fchostdata/fc_host/host6/port_name Normal file
View File

@ -0,0 +1 @@
0x2102001b32a9da4e

1
tests/fchostdata/fc_host/host6/port_state Normal file
View File

@ -0,0 +1 @@
Online

40
tests/fchosttest.c
View File

@ -29,13 +29,16 @@ static char *fchost_prefix;
#define TEST_FC_HOST_PREFIX fchost_prefix
#define TEST_FC_HOST_NUM 5
#define TEST_FC_HOST_NUM_NO_FAB 6
/* Test virIsCapableFCHost */
static int
test1(const void *data ATTRIBUTE_UNUSED)
{
if (virIsCapableFCHost(TEST_FC_HOST_PREFIX,
TEST_FC_HOST_NUM))
TEST_FC_HOST_NUM) &&
virIsCapableFCHost(TEST_FC_HOST_PREFIX,
TEST_FC_HOST_NUM_NO_FAB))
return 0;
return -1;
@ -148,6 +151,39 @@ test5(const void *data ATTRIBUTE_UNUSED)
return ret;
}
/* Test virReadFCHost fabric name optional */
static int
test6(const void *data ATTRIBUTE_UNUSED)
{
const char *expect_wwnn = "2002001b32a9da4e";
const char *expect_wwpn = "2102001b32a9da4e";
char *wwnn = NULL;
char *wwpn = NULL;
int ret = -1;
if (!(wwnn = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM_NO_FAB,
"node_name")))
return -1;
if (!(wwpn = virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM_NO_FAB,
"port_name")))
goto cleanup;
if (virReadFCHost(TEST_FC_HOST_PREFIX, TEST_FC_HOST_NUM_NO_FAB,
"fabric_name"))
goto cleanup;
if (STRNEQ(expect_wwnn, wwnn) ||
STRNEQ(expect_wwpn, wwpn))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(wwnn);
VIR_FREE(wwpn);
return ret;
}
static int
mymain(void)
{
@ -169,6 +205,8 @@ mymain(void)
ret = -1;
if (virTestRun("test5", test5, NULL) < 0)
ret = -1;
if (virTestRun("test6", test6, NULL) < 0)
ret = -1;
cleanup:
VIR_FREE(fchost_prefix);