Re: [libvirt] [PATCH 6/9] nodedev: Dump max vports and vports in use for HBA's XML

This enrichs HBA's xml by dumping the number of max vports and vports in use. Format is like: <capability type='vport_ops'> <max_vports>164</max_vports> <vports>5</vports> </capability> * docs/formatnode.html.in: (Document the new XML) * docs/schemas/nodedev.rng: (Add the schema) * src/conf/node_device_conf.h: (New member for data.scsi_host) * src/node_device/node_device_linux_sysfs.c: (Collect the value of max_vports and vports) --- docs/formatnode.html.in | 10 ++++-- docs/schemas/nodedev.rng | 6 +++ src/conf/node_device_conf.c | 7 +++- src/conf/node_device_conf.h | 2 + src/node_device/node_device_linux_sysfs.c | 48 ++++++++++++++++++++++++++-- 5 files changed, 65 insertions(+), 8 deletions(-)

diff --git a/src/node_device/node_device_linux_sysfs.c b/src/node_device/node_device_linux_sysfs.c index 054afea..b498726 100644 --- a/src/node_device/node_device_linux_sysfs.c +++ b/src/node_device/node_device_linux_sysfs.c @@ -40,6 +40,8 @@ int detect_scsi_host_caps_linux(union _virNodeDevCapData *d) { + char *max_vports = NULL; + char *vports = NULL; int ret = -1; VIR_DEBUG("Checking if host%d is an FC HBA", d->scsi_host.host); @@ -50,7 +52,7 @@ detect_scsi_host_caps_linux(union _virNodeDevCapData *d) if (virReadFCHost(NULL, d->scsi_host.host, "port_name", - &d->scsi_host.wwpn) == -1) { + &d->scsi_host.wwpn) < 0) { VIR_ERROR(_("Failed to read WWPN for host%d"), d->scsi_host.host); goto cleanup; } @@ -58,7 +60,7 @@ detect_scsi_host_caps_linux(union _virNodeDevCapData *d) if (virReadFCHost(NULL, d->scsi_host.host, "node_name", - &d->scsi_host.wwnn) == -1) { + &d->scsi_host.wwnn) < 0) { VIR_ERROR(_("Failed to read WWNN for host%d"), d->scsi_host.host); goto cleanup; } @@ -66,23 +68,61 @@ detect_scsi_host_caps_linux(union _virNodeDevCapData *d) if (virReadFCHost(NULL, d->scsi_host.host, "fabric_name", - &d->scsi_host.fabric_wwn) == -1) { + &d->scsi_host.fabric_wwn) < 0) { VIR_ERROR(_("Failed to read fabric WWN for host%d"), d->scsi_host.host); goto cleanup; } } - if (virIsCapableVport(NULL, d->scsi_host.host) == 0) + if (virIsCapableVport(NULL, d->scsi_host.host) == 0) { d->scsi_host.flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS; + if (virReadFCHost(NULL, + d->scsi_host.max_vports, + "max_npiv_vports", + &max_vports) < 0) { + VIR_ERROR(_("Failed to read max_npiv_vports for host%d"), + d->scsi_host.host); + goto cleanup; + } + + if (virReadFCHost(NULL, + d->scsi_host.max_vports, + "npiv_vports_inuse", + &vports) < 0) { + VIR_ERROR(_("Failed to read npiv_vports_inuse for host%d"), + d->scsi_host.host); + goto cleanup; + } + + if (virStrToLong_i(max_vports, NULL, 10, + &d->scsi_host.max_vports) < 0) { + VIR_ERROR(_("Failed to parse value of max_npiv_vports '%s'"), + max_vports); + goto cleanup; + } + + if (virStrToLong_i(vports, NULL, 10, + &d->scsi_host.vports) < 0) { + VIR_ERROR(_("Failed to parse value of npiv_vports_inuse '%s'"), + vports); + goto cleanup; + } + } + ret = 0; cleanup: if (ret == -1) {

+ /* Clear the flags in case of producing confusing XML output */ + d->scsi_host.flags = 0;

+ VIR_FREE(d->scsi_host.wwnn); VIR_FREE(d->scsi_host.wwpn); VIR_FREE(d->scsi_host.fabric_wwn); } + VIR_FREE(max_vports); + VIR_FREE(vports); return ret; }