This Patch added a unique application identifier i.e app_id knob to blkcg which allows identification of traffic sources at an individual cgroup based Applications (ex:virtual machine (VM))level in both host and fabric infrastructure. Added a new sysfs attribute appid_store to set the application identfier in the blkcg associted with cgroup id /sys/class/fc/fc_udev_device/* With this new interface the user can set the application identfier in the blkcg associted with cgroup id. This capability can be utilized by multiple block transport infrastructure like fc,iscsi,roce. Existing FC fabric will use this feature and the description of the use case is below. Various virtualization technologies used in Fibre Channel SAN deployments have created the opportunity to identify and associate traffic with specific virtualized applications. The concepts behind the T11 Application Services standard is to provide the general mechanisms needed to identify virtualized services. It enables the Fabric and the storage targets to identify, monitor, and handle FC traffic based on vm tags by inserting application specific identification into the FC frame. The patches were cut against 5.10/scsi-queue tree V2: renamed app_identifier to app_id. removed the sysfs interface blkio.app_identifie under /sys/fs/cgroup/blkio Ported the patch on top of 5.10/scsi-queue. Removed redundant code due to changes since last submit. Added a fix for issuing QFPA command. Gaurav Srivastava (15): lpfc: vmid: Add the datastructure for supporting VMID in lpfc lpfc: vmid: API to check if VMID is enabled. lpfc: vmid: Supplementary data structures for vmid lpfc: vmid: Forward declarations for APIs lpfc: vmid: Add support for vmid in mailbox command lpfc: vmid: VMID params initialization lpfc: vmid: vmid resource allocation lpfc: vmid: cleanup vmid resources lpfc: vmid: Implements ELS commands for appid patch lpfc: vmid: Functions to manage vmids lpfc: vmid: Implements CT commands for appid. lpfc: vmid: Appends the vmid in the wqe before sending request lpfc: vmid: Timeout implementation for vmid lpfc: vmid: Adding qfpa and vmid timeout check in worker thread lpfc: vmid: Introducing vmid in io path. Muneendra (3): cgroup: Added cgroup_get_from_kernfs_id blkcg: Added a app identifier support for blkcg nvme: Added a newsysfs attribute appid_store block/blk-cgroup.c | 31 +++ drivers/nvme/host/fc.c | 73 ++++++- drivers/scsi/lpfc/lpfc.h | 121 +++++++++++ drivers/scsi/lpfc/lpfc_attr.c | 47 ++++ drivers/scsi/lpfc/lpfc_crtn.h | 11 + drivers/scsi/lpfc/lpfc_ct.c | 249 +++++++++++++++++++++ drivers/scsi/lpfc/lpfc_disc.h | 1 + drivers/scsi/lpfc/lpfc_els.c | 356 ++++++++++++++++++++++++++++++- drivers/scsi/lpfc/lpfc_hbadisc.c | 151 +++++++++++++ drivers/scsi/lpfc/lpfc_hw.h | 124 ++++++++++- drivers/scsi/lpfc/lpfc_hw4.h | 12 ++ drivers/scsi/lpfc/lpfc_init.c | 108 ++++++++++ drivers/scsi/lpfc/lpfc_mbox.c | 6 + drivers/scsi/lpfc/lpfc_scsi.c | 325 ++++++++++++++++++++++++++++ drivers/scsi/lpfc/lpfc_sli.c | 65 +++++- drivers/scsi/lpfc/lpfc_sli.h | 8 + include/linux/blk-cgroup.h | 22 ++ include/linux/cgroup.h | 6 + kernel/cgroup/cgroup.c | 25 +++ 19 files changed, 1728 insertions(+), 13 deletions(-) -- 2.26.2
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