Re: [PATCH libvirt v2 03/11] nodedev: detect AP queues

Each AP card device can support upto 256 AP queues. AP queues are also detected by udev, so add support for libvirt nodedev driver. Signed-off-by: Farhan Ali <alifm(a)linux.ibm.com&gt; Signed-off-by: Shalini Chellathurai Saroja <shalini(a)linux.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com&gt; --- docs/formatnode.html.in | 11 ++++++ docs/schemas/nodedev.rng | 25 +++++++++++++ src/conf/node_device_conf.c | 59 ++++++++++++++++++++++++++++++ src/conf/node_device_conf.h | 9 +++++ src/conf/virnodedeviceobj.c | 1 + src/node_device/node_device_udev.c | 27 ++++++++++++++ tools/virsh-nodedev.c | 1 + 7 files changed, 133 insertions(+) diff --git a/docs/formatnode.html.in b/docs/formatnode.html.in index d10a79e3..45281363 100644 --- a/docs/formatnode.html.in +++ b/docs/formatnode.html.in @@ -439,6 +439,17 @@ <dd>AP Card identifier.</dd> </dl> </dd> + <dt><code>ap_queue</code></dt> + <dd>Describes the AP Queue on a S390 host. An AP Queue is + identified by it's ap-adapter and ap-domain id.

Sub-elements include: + <dl> + <dt><code>ap-adapter</code></dt> + <dd>The ap-adapter of an AP Queue identifies AP Card to which + this queue belongs.</dd> + <dt><code>ap-domain</code></dt> + <dd>AP Queue identifier.</dd> + </dl> + </dd> </dl> </dd> </dl> diff --git a/docs/schemas/nodedev.rng b/docs/schemas/nodedev.rng index d02e5377..51cb8854 100644 --- a/docs/schemas/nodedev.rng +++ b/docs/schemas/nodedev.rng @@ -88,6 +88,7 @@ <ref name="capcssdev"/> <ref name="capvdpa"/> <ref name="capapcard"/> + <ref name="capapqueue"/> </choice> </element> </define> @@ -678,6 +679,18 @@ </element> </define> + <define name='capapqueue'> + <attribute name='type'> + <value>ap_queue</value> + </attribute> + <element name='ap-adapter'> + <ref name='apAdapterRange'/> + </element> + <element name='ap-domain'> + <ref name='apDomainRange'/> + </element> + </define>

+ <define name='address'> <element name='address'> <attribute name='domain'><ref name='hexuint'/></attribute> @@ -738,4 +751,16 @@ </choice> </define> + <define name="apDomainRange"> + <choice> + <data type="string"> + <param name="pattern">(0x)?[0-9a-fA-F]{1,4}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param>

+ </data> + </choice> + </define> + </grammar> diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 5d7a23cb..fa3b823f 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -68,6 +68,7 @@ VIR_ENUM_IMPL(virNodeDevCap, "css", "vdpa", "ap_card", + "ap_queue", ); VIR_ENUM_IMPL(virNodeDevNetCap, @@ -655,6 +656,12 @@ virNodeDeviceDefFormat(const virNodeDeviceDef *def) virBufferAsprintf(&buf, "<ap-adapter>0x%02x</ap-adapter>\n", data->ap_card.ap_adapter); break; + case VIR_NODE_DEV_CAP_AP_QUEUE: + virBufferAsprintf(&buf, "<ap-adapter>0x%02x</ap-adapter>\n", + data->ap_queue.ap_adapter); + virBufferAsprintf(&buf, "<ap-domain>0x%04x</ap-domain>\n", + data->ap_queue.ap_domain); + break; case VIR_NODE_DEV_CAP_MDEV_TYPES: case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: @@ -976,6 +983,52 @@ virNodeDevCapAPCardParseXML(xmlXPathContextPtr ctxt, } +static int +virNodeDevCapAPQueueParseXML(xmlXPathContextPtr ctxt, + virNodeDeviceDefPtr def, + xmlNodePtr node, + virNodeDevCapAPQueuePtr ap_queue) +{ + xmlNodePtr orig; + int ret = -1; + g_autofree char *adapter = NULL, *dom = 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_queue->ap_adapter) < 0) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("invalid ap-adapter value '%s' for '%s'"), + adapter, def->name); + goto out; + } + + if (!(dom = virXPathString("string(./ap-domain[1])", ctxt))) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("missing ap-domain value for '%s'"), def->name); + goto out; + } + + if (virStrToLong_uip(dom, NULL, 0, &ap_queue->ap_domain) < 0) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("invalid ap-domain value '%s' for '%s'"), + dom, def->name); + goto out; + } + + ret = 0; + out: + ctxt->node = orig; + return ret; +} + + static int virNodeDevCapStorageParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, @@ -2018,6 +2071,10 @@ virNodeDevCapsDefParseXML(xmlXPathContextPtr ctxt, ret = virNodeDevCapAPCardParseXML(ctxt, def, node, &caps->data.ap_card); break; + case VIR_NODE_DEV_CAP_AP_QUEUE: + ret = virNodeDevCapAPQueueParseXML(ctxt, def, node, + &caps->data.ap_queue); + break; case VIR_NODE_DEV_CAP_MDEV_TYPES: case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: @@ -2346,6 +2403,7 @@ virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps) case VIR_NODE_DEV_CAP_CCW_DEV: case VIR_NODE_DEV_CAP_VDPA: case VIR_NODE_DEV_CAP_AP_CARD: + case VIR_NODE_DEV_CAP_AP_QUEUE: case VIR_NODE_DEV_CAP_LAST: /* This case is here to shutup the compiler */ break; @@ -2406,6 +2464,7 @@ virNodeDeviceUpdateCaps(virNodeDeviceDefPtr def) case VIR_NODE_DEV_CAP_CCW_DEV: case VIR_NODE_DEV_CAP_VDPA: case VIR_NODE_DEV_CAP_AP_CARD: + case VIR_NODE_DEV_CAP_AP_QUEUE: case VIR_NODE_DEV_CAP_LAST: break; } diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h index f86f880c..27cb0004 100644 --- a/src/conf/node_device_conf.h +++ b/src/conf/node_device_conf.h @@ -67,6 +67,7 @@ typedef enum { VIR_NODE_DEV_CAP_CSS_DEV, /* s390 channel subsystem device */ VIR_NODE_DEV_CAP_VDPA, /* vDPA device */ VIR_NODE_DEV_CAP_AP_CARD, /* s390 AP Card device */ + VIR_NODE_DEV_CAP_AP_QUEUE, /* s390 AP Queue */ VIR_NODE_DEV_CAP_LAST } virNodeDevCapType; @@ -296,6 +297,13 @@ struct _virNodeDevCapAPCard { unsigned int ap_adapter; }; +typedef struct _virNodeDevCapAPQueue virNodeDevCapAPQueue; +typedef virNodeDevCapAPQueue *virNodeDevCapAPQueuePtr; +struct _virNodeDevCapAPQueue { + unsigned int ap_adapter; + unsigned int ap_domain; +}; + typedef struct _virNodeDevCapData virNodeDevCapData; typedef virNodeDevCapData *virNodeDevCapDataPtr; struct _virNodeDevCapData { @@ -316,6 +324,7 @@ struct _virNodeDevCapData { virNodeDevCapCCW ccw_dev; virNodeDevCapVDPA vdpa; virNodeDevCapAPCard ap_card; + virNodeDevCapAPQueue ap_queue; }; }; diff --git a/src/conf/virnodedeviceobj.c b/src/conf/virnodedeviceobj.c index 0aa59289..8b4302d7 100644 --- a/src/conf/virnodedeviceobj.c +++ b/src/conf/virnodedeviceobj.c @@ -718,6 +718,7 @@ virNodeDeviceObjHasCap(const virNodeDeviceObj *obj, case VIR_NODE_DEV_CAP_CCW_DEV: case VIR_NODE_DEV_CAP_VDPA: case VIR_NODE_DEV_CAP_AP_CARD: + case VIR_NODE_DEV_CAP_AP_QUEUE: 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 b4eb4553..6bbff571 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -1218,6 +1218,29 @@ udevProcessAPCard(struct udev_device *device, } +static int +udevProcessAPQueue(struct udev_device *device, + virNodeDeviceDefPtr def) +{ + char *c; + virNodeDevCapDataPtr data = &def->caps->data; +

+ if ((c = strrchr(def->sysfs_path, '/')) == NULL || + virStrToLong_ui(c + 1, &c, 16, &data->ap_queue.ap_adapter) < 0 || + virStrToLong_ui(c + 1, &c, 16, &data->ap_queue.ap_domain) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("failed to parse the AP Queue 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) @@ -1274,6 +1297,8 @@ udevGetDeviceType(struct udev_device *device, *type = VIR_NODE_DEV_CAP_DRM; else if (STREQ(devtype, "ap_card")) *type = VIR_NODE_DEV_CAP_AP_CARD; + else if (STREQ(devtype, "ap_queue")) + *type = VIR_NODE_DEV_CAP_AP_QUEUE; } else { /* PCI devices don't set the DEVTYPE property. */ if (udevHasDeviceProperty(device, "PCI_CLASS")) @@ -1351,6 +1376,8 @@ udevGetDeviceDetails(struct udev_device *device, return udevProcessVDPA(device, def); case VIR_NODE_DEV_CAP_AP_CARD: return udevProcessAPCard(device, def); + case VIR_NODE_DEV_CAP_AP_QUEUE: + return udevProcessAPQueue(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/tools/virsh-nodedev.c b/tools/virsh-nodedev.c index 32c12553..81752e85 100644 --- a/tools/virsh-nodedev.c +++ b/tools/virsh-nodedev.c @@ -468,6 +468,7 @@ cmdNodeListDevices(vshControl *ctl, const vshCmd *cmd G_GNUC_UNUSED) flags |= VIR_CONNECT_LIST_NODE_DEVICES_CAP_VDPA; break; case VIR_NODE_DEV_CAP_AP_CARD: + case VIR_NODE_DEV_CAP_AP_QUEUE: case VIR_NODE_DEV_CAP_LAST: break; }