[PATCH libvirt v1 1/7] nodedev: Detect AP Card device
Boris Fiuczynski
fiuczy at linux.ibm.com
Mon Nov 2 17:57:28 UTC 2020
On 10/21/20 12:59 PM, Shalini Chellathurai Saroja wrote:
> From: Farhan Ali <alifm at linux.ibm.com>
>
> Introduce support for the Adjunct Processor (AP) Crypto Card device.
> Udev already detects the device, so add support for libvirt nodedev
> driver.
>
> Signed-off-by: Farhan Ali <alifm at linux.ibm.com>
> Signed-off-by: Shalini Chellathurai Saroja <shalini at linux.ibm.com>
> Reviewed-by: Bjoern Walk <bwalk at linux.ibm.com>
> Reviewed-by: Boris Fiuczynski <fiuczy at linux.ibm.com>
> ---
> docs/formatnode.html.in | 7 +++++
> docs/schemas/nodedev.rng | 34 ++++++++++++++++++----
> src/conf/node_device_conf.c | 42 +++++++++++++++++++++++++++
> src/conf/node_device_conf.h | 8 +++++
> src/conf/virnodedeviceobj.c | 1 +
> src/node_device/node_device_udev.c | 30 +++++++++++++++++++
> tests/nodedevschemadata/ap_card07.xml | 8 +++++
> tests/nodedevxml2xmltest.c | 1 +
> tools/virsh-nodedev.c | 1 +
> 9 files changed, 126 insertions(+), 6 deletions(-)
> create mode 100644 tests/nodedevschemadata/ap_card07.xml
>
> diff --git a/docs/formatnode.html.in b/docs/formatnode.html.in
> index 59442746..300ddf21 100644
> --- a/docs/formatnode.html.in
> +++ b/docs/formatnode.html.in
> @@ -432,6 +432,13 @@
> <dd>The device number.</dd>
> </dl>
> </dd>
> + <dt><code>ap_card</code></dt>
> + <dd>Describes the AP Card device on a S390 host. Sub-elements include:
> + <dl>
> + <dt><code>ap-adapter</code></dt>
> + <dd>AP Card identifier.</dd>
> + </dl>
> + </dd>
> </dl>
> </dd>
> </dl>
> diff --git a/docs/schemas/nodedev.rng b/docs/schemas/nodedev.rng
> index 166e278c..06ccb9c8 100644
> --- a/docs/schemas/nodedev.rng
> +++ b/docs/schemas/nodedev.rng
> @@ -86,6 +86,7 @@
> <ref name="capmdev"/>
> <ref name="capccwdev"/>
> <ref name="capcssdev"/>
> + <ref name="capapcard"/>
> </choice>
> </element>
> </define>
> @@ -675,12 +676,21 @@
> </element>
> </define>
>
> - <define name="address">
> - <element name="address">
> - <attribute name="domain"><ref name="hexuint"/></attribute>
> - <attribute name="bus"><ref name="hexuint"/></attribute>
> - <attribute name="slot"><ref name="hexuint"/></attribute>
> - <attribute name="function"><ref name="hexuint"/></attribute>
> + <define name='capapcard'>
> + <attribute name='type'>
> + <value>ap_card</value>
> + </attribute>
> + <element name='ap-adapter'>
> + <ref name='apAdapterRange'/>
> + </element>
> + </define>
> +
> + <define name='address'>
> + <element name='address'>
> + <attribute name='domain'><ref name='hexuint'/></attribute>
> + <attribute name='bus'><ref name='hexuint'/></attribute>
> + <attribute name='slot'><ref name='hexuint'/></attribute>
> + <attribute name='function'><ref name='hexuint'/></attribute>
> </element>
> </define>
>
> @@ -696,4 +706,16 @@
> </data>
> </define>
>
> + <define name="apAdapterRange">
> + <choice>
> + <data type="string">
> + <param name="pattern">(0x)?[0-9a-fA-F]{1,2}</param>
> + </data>
> + <data type="int">
> + <param name="minInclusive">0</param>
> + <param name="maxInclusive">255</param>
> + </data>
> + </choice>
> + </define>
^ wrong indent
> +
> </grammar>
> diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c
> index 4adfdef5..88c00b5b 100644
> --- a/src/conf/node_device_conf.c
> +++ b/src/conf/node_device_conf.c
> @@ -66,6 +66,7 @@ VIR_ENUM_IMPL(virNodeDevCap,
> "mdev",
> "ccw",
> "css",
> + "ap_card",
> );
>
> VIR_ENUM_IMPL(virNodeDevNetCap,
> @@ -611,6 +612,10 @@ virNodeDeviceDefFormat(const virNodeDeviceDef *def)
> virBufferAsprintf(&buf, "<devno>0x%04x</devno>\n",
> data->ccw_dev.devno);
> break;
> + case VIR_NODE_DEV_CAP_AP_CARD:
> + virBufferAsprintf(&buf, "<ap-adapter>0x%02x</ap-adapter>\n",
> + data->ap_card.ap_adapter);
> + break;
> case VIR_NODE_DEV_CAP_MDEV_TYPES:
> case VIR_NODE_DEV_CAP_FC_HOST:
> case VIR_NODE_DEV_CAP_VPORTS:
> @@ -803,6 +808,37 @@ virNodeDevCapCCWParseXML(xmlXPathContextPtr ctxt,
> }
>
>
> +static int
> +virNodeDevCapAPCardParseXML(xmlXPathContextPtr ctxt,
> + virNodeDeviceDefPtr def,
> + xmlNodePtr node,
> + virNodeDevCapAPCardPtr ap_card)
> +{
> + xmlNodePtr orig;
> + int ret = 0;
> + g_autofree char *adapter = NULL;
> +
> + orig = ctxt->node;
> + ctxt->node = node;
> +
> + if (!(adapter = virXPathString("string(./ap-adapter[1])", ctxt))) {
> + virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
> + _("missing ap-adapter value for '%s'"), def->name);
> + return -1;
> + }
> +
> + if (virStrToLong_uip(adapter, NULL, 0, &ap_card->ap_adapter) < 0) {
> + virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
> + _("invalid ap-adapter value '%s' for '%s'"),
> + adapter, def->name);
> + ret = -1;
> + }
> +
> + ctxt->node = orig;
> + return ret;
> +}
> +
> +
> static int
> virNodeDevCapStorageParseXML(xmlXPathContextPtr ctxt,
> virNodeDeviceDefPtr def,
> @@ -1898,6 +1934,10 @@ virNodeDevCapsDefParseXML(xmlXPathContextPtr ctxt,
> case VIR_NODE_DEV_CAP_CSS_DEV:
> ret = virNodeDevCapCCWParseXML(ctxt, def, node, &caps->data.ccw_dev);
> break;
> + case VIR_NODE_DEV_CAP_AP_CARD:
> + ret = virNodeDevCapAPCardParseXML(ctxt, def, node,
> + &caps->data.ap_card);
> + break;
> case VIR_NODE_DEV_CAP_MDEV_TYPES:
> case VIR_NODE_DEV_CAP_FC_HOST:
> case VIR_NODE_DEV_CAP_VPORTS:
> @@ -2219,6 +2259,7 @@ virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps)
> case VIR_NODE_DEV_CAP_VPORTS:
> case VIR_NODE_DEV_CAP_CCW_DEV:
> case VIR_NODE_DEV_CAP_CSS_DEV:
> + case VIR_NODE_DEV_CAP_AP_CARD:
> case VIR_NODE_DEV_CAP_LAST:
> /* This case is here to shutup the compiler */
> break;
> @@ -2273,6 +2314,7 @@ virNodeDeviceUpdateCaps(virNodeDeviceDefPtr def)
> case VIR_NODE_DEV_CAP_MDEV:
> case VIR_NODE_DEV_CAP_CCW_DEV:
> case VIR_NODE_DEV_CAP_CSS_DEV:
> + case VIR_NODE_DEV_CAP_AP_CARD:
> case VIR_NODE_DEV_CAP_LAST:
> break;
> }
> diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h
> index 5484bc34..aa2dac43 100644
> --- a/src/conf/node_device_conf.h
> +++ b/src/conf/node_device_conf.h
> @@ -65,6 +65,7 @@ typedef enum {
> VIR_NODE_DEV_CAP_MDEV, /* Mediated device */
> VIR_NODE_DEV_CAP_CCW_DEV, /* s390 CCW device */
> VIR_NODE_DEV_CAP_CSS_DEV, /* s390 channel subsystem device */
> + VIR_NODE_DEV_CAP_AP_CARD, /* s390 AP Card device */
>
> VIR_NODE_DEV_CAP_LAST
> } virNodeDevCapType;
> @@ -275,6 +276,12 @@ struct _virNodeDevCapCCW {
> unsigned int devno;
> };
>
> +typedef struct _virNodeDevCapAPCard virNodeDevCapAPCard;
> +typedef virNodeDevCapAPCard *virNodeDevCapAPCardPtr;
> +struct _virNodeDevCapAPCard {
> + unsigned int ap_adapter;
> +};
> +
> typedef struct _virNodeDevCapData virNodeDevCapData;
> typedef virNodeDevCapData *virNodeDevCapDataPtr;
> struct _virNodeDevCapData {
> @@ -293,6 +300,7 @@ struct _virNodeDevCapData {
> virNodeDevCapDRM drm;
> virNodeDevCapMdev mdev;
> virNodeDevCapCCW ccw_dev;
> + virNodeDevCapAPCard ap_card;
> };
> };
>
> diff --git a/src/conf/virnodedeviceobj.c b/src/conf/virnodedeviceobj.c
> index 9af80b80..8d3e5a43 100644
> --- a/src/conf/virnodedeviceobj.c
> +++ b/src/conf/virnodedeviceobj.c
> @@ -711,6 +711,7 @@ virNodeDeviceObjHasCap(const virNodeDeviceObj *obj,
> case VIR_NODE_DEV_CAP_MDEV:
> case VIR_NODE_DEV_CAP_CCW_DEV:
> case VIR_NODE_DEV_CAP_CSS_DEV:
> + case VIR_NODE_DEV_CAP_AP_CARD:
> case VIR_NODE_DEV_CAP_LAST:
> break;
> }
> diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
> index 29a7eaa0..c513b4cc 100644
> --- a/src/node_device/node_device_udev.c
> +++ b/src/node_device/node_device_udev.c
> @@ -1142,6 +1142,32 @@ udevProcessCSS(struct udev_device *device,
> return 0;
> }
>
> +
> +static int
> +udevProcessAPCard(struct udev_device *device,
> + virNodeDeviceDefPtr def)
> +{
> + char *c;
> + virNodeDevCapDataPtr data = &def->caps->data;
> +
> + /* The sysfs path would be in the format /sys/bus/ap/devices/cardXX,
> + where XX is the ap adapter id */
> + if ((c = strrchr(def->sysfs_path, '/')) == NULL ||
> + virStrToLong_ui(c + 1 + strlen("card"), NULL, 16,
> + &data->ap_card.ap_adapter) < 0) {
> + virReportError(VIR_ERR_INTERNAL_ERROR,
> + _("failed to parse the AP Card from sysfs path: '%s'"),
> + def->sysfs_path);
> + return -1;
> + }
> +
> + if (udevGenerateDeviceName(device, def, NULL) != 0)
> + return -1;
> +
> + return 0;
> +}
> +
> +
> static int
> udevGetDeviceNodes(struct udev_device *device,
> virNodeDeviceDefPtr def)
> @@ -1196,6 +1222,8 @@ udevGetDeviceType(struct udev_device *device,
> *type = VIR_NODE_DEV_CAP_NET;
> else if (STREQ(devtype, "drm_minor"))
> *type = VIR_NODE_DEV_CAP_DRM;
> + else if (STREQ(devtype, "ap_card"))
> + *type = VIR_NODE_DEV_CAP_AP_CARD;
> } else {
> /* PCI devices don't set the DEVTYPE property. */
> if (udevHasDeviceProperty(device, "PCI_CLASS"))
> @@ -1267,6 +1295,8 @@ udevGetDeviceDetails(struct udev_device *device,
> return udevProcessCCW(device, def);
> case VIR_NODE_DEV_CAP_CSS_DEV:
> return udevProcessCSS(device, def);
> + case VIR_NODE_DEV_CAP_AP_CARD:
> + return udevProcessAPCard(device, def);
> case VIR_NODE_DEV_CAP_MDEV_TYPES:
> case VIR_NODE_DEV_CAP_SYSTEM:
> case VIR_NODE_DEV_CAP_FC_HOST:
> diff --git a/tests/nodedevschemadata/ap_card07.xml b/tests/nodedevschemadata/ap_card07.xml
> new file mode 100644
> index 00000000..14a845fd
> --- /dev/null
> +++ b/tests/nodedevschemadata/ap_card07.xml
> @@ -0,0 +1,8 @@
> +<device>
> + <name>ap_card07</name>
> + <path>/sys/devices/ap/card07</path>
> + <parent>computer</parent>
> + <capability type='ap_card'>
> + <ap-adapter>0x07</ap-adapter>
> + </capability>
> +</device>
> diff --git a/tests/nodedevxml2xmltest.c b/tests/nodedevxml2xmltest.c
> index 3cb23b1d..7990f6cd 100644
> --- a/tests/nodedevxml2xmltest.c
> +++ b/tests/nodedevxml2xmltest.c
> @@ -124,6 +124,7 @@ mymain(void)
> DO_TEST("mdev_3627463d_b7f0_4fea_b468_f1da537d301b");
> DO_TEST("ccw_0_0_ffff");
> DO_TEST("css_0_0_ffff");
> + DO_TEST("ap_card07");
>
> return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
> }
> diff --git a/tools/virsh-nodedev.c b/tools/virsh-nodedev.c
> index 483e36bd..98268916 100644
> --- a/tools/virsh-nodedev.c
> +++ b/tools/virsh-nodedev.c
> @@ -464,6 +464,7 @@ cmdNodeListDevices(vshControl *ctl, const vshCmd *cmd G_GNUC_UNUSED)
> case VIR_NODE_DEV_CAP_CSS_DEV:
> flags |= VIR_CONNECT_LIST_NODE_DEVICES_CAP_CSS_DEV;
> break;
> + case VIR_NODE_DEV_CAP_AP_CARD:
> case VIR_NODE_DEV_CAP_LAST:
> break;
> }
>
--
Mit freundlichen Grüßen/Kind regards
Boris Fiuczynski
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Gregor Pillen
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
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