| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 252 | 78.02% | 15 | 55.56% | |
| 44 | 13.62% | 4 | 14.81% | |
| 13 | 4.02% | 2 | 7.41% | |
| 5 | 1.55% | 2 | 7.41% | |
| 3 | 0.93% | 1 | 3.70% | |
| 3 | 0.93% | 1 | 3.70% | |
| 2 | 0.62% | 1 | 3.70% | |
| 1 | 0.31% | 1 | 3.70% | |
| Total | 323 | 27 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Tony Krowiak | 252 | 78.02% | 15 | 55.56% |
| Pierre Morel | 44 | 13.62% | 4 | 14.81% |
| Christoph Hellwig | 13 | 4.02% | 2 | 7.41% |
| Jason Gunthorpe | 5 | 1.55% | 2 | 7.41% |
| Jason J. Herne | 3 | 0.93% | 1 | 3.70% |
| Heiko Carstens | 3 | 0.93% | 1 | 3.70% |
| Nicolin Chen | 2 | 0.62% | 1 | 3.70% |
| Linus Torvalds | 1 | 0.31% | 1 | 3.70% |
| Total | 323 | 27 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * Private data and functions for adjunct processor VFIO matrix driver. * * Author(s): Tony Krowiak <akrowiak@linux.ibm.com> * Halil Pasic <pasic@linux.ibm.com> * Pierre Morel <pmorel@linux.ibm.com> * * Copyright IBM Corp. 2018 */ #ifndef _VFIO_AP_PRIVATE_H_ #define _VFIO_AP_PRIVATE_H_ #include <linux/types.h> #include <linux/mdev.h> #include <linux/delay.h> #include <linux/eventfd.h> #include <linux/mutex.h> #include <linux/kvm_host.h> #include <linux/vfio.h> #include <linux/hashtable.h> #include "ap_bus.h" #define VFIO_AP_MODULE_NAME "vfio_ap" #define VFIO_AP_DRV_NAME "vfio_ap" /** * struct ap_matrix_dev - Contains the data for the matrix device. * * @device: generic device structure associated with the AP matrix device * @info: the struct containing the output from the PQAP(QCI) instruction * @mdev_list: the list of mediated matrix devices created * @mdevs_lock: mutex for locking the AP matrix device. This lock will be * taken every time we fiddle with state managed by the vfio_ap * driver, be it using @mdev_list or writing the state of a * single ap_matrix_mdev device. It's quite coarse but we don't * expect much contention. * @vfio_ap_drv: the vfio_ap device driver * @guests_lock: mutex for controlling access to a guest that is using AP * devices passed through by the vfio_ap device driver. This lock * will be taken when the AP devices are plugged into or unplugged * from a guest, and when an ap_matrix_mdev device is added to or * removed from @mdev_list or the list is iterated. */ struct ap_matrix_dev { struct device device; struct ap_config_info info; struct list_head mdev_list; struct mutex mdevs_lock; /* serializes access to each ap_matrix_mdev */ struct ap_driver *vfio_ap_drv; struct mutex guests_lock; /* serializes access to each KVM guest */ struct mdev_parent parent; struct mdev_type mdev_type; struct mdev_type *mdev_types[1]; }; extern struct ap_matrix_dev *matrix_dev; /** * struct ap_matrix - matrix of adapters, domains and control domains * * @apm_max: max adapter number in @apm * @apm: identifies the AP adapters in the matrix * @aqm_max: max domain number in @aqm * @aqm: identifies the AP queues (domains) in the matrix * @adm_max: max domain number in @adm * @adm: identifies the AP control domains in the matrix * * The AP matrix is comprised of three bit masks identifying the adapters, * queues (domains) and control domains that belong to an AP matrix. The bits in * each mask, from left to right, correspond to IDs 0 to 255. When a bit is set * the corresponding ID belongs to the matrix. */ struct ap_matrix { unsigned long apm_max; DECLARE_BITMAP(apm, 256); unsigned long aqm_max; DECLARE_BITMAP(aqm, 256); unsigned long adm_max; DECLARE_BITMAP(adm, 256); }; /** * struct ap_queue_table - a table of queue objects. * * @queues: a hashtable of queues (struct vfio_ap_queue). */ struct ap_queue_table { DECLARE_HASHTABLE(queues, 8); }; /** * struct ap_matrix_mdev - Contains the data associated with a matrix mediated * device. * @vdev: the vfio device * @node: allows the ap_matrix_mdev struct to be added to a list * @matrix: the adapters, usage domains and control domains assigned to the * mediated matrix device. * @shadow_apcb: the shadow copy of the APCB field of the KVM guest's CRYCB * @kvm: the struct holding guest's state * @pqap_hook: the function pointer to the interception handler for the * PQAP(AQIC) instruction. * @mdev: the mediated device * @qtable: table of queues (struct vfio_ap_queue) assigned to the mdev * @req_trigger eventfd ctx for signaling userspace to return a device * @apm_add: bitmap of APIDs added to the host's AP configuration * @aqm_add: bitmap of APQIs added to the host's AP configuration * @adm_add: bitmap of control domain numbers added to the host's AP * configuration */ struct ap_matrix_mdev { struct vfio_device vdev; struct list_head node; struct ap_matrix matrix; struct ap_matrix shadow_apcb; struct kvm *kvm; crypto_hook pqap_hook; struct mdev_device *mdev; struct ap_queue_table qtable; struct eventfd_ctx *req_trigger; DECLARE_BITMAP(apm_add, AP_DEVICES); DECLARE_BITMAP(aqm_add, AP_DOMAINS); DECLARE_BITMAP(adm_add, AP_DOMAINS); }; /** * struct vfio_ap_queue - contains the data associated with a queue bound to the * vfio_ap device driver * @matrix_mdev: the matrix mediated device * @saved_iova: the notification indicator byte (nib) address * @apqn: the APQN of the AP queue device * @saved_isc: the guest ISC registered with the GIB interface * @mdev_qnode: allows the vfio_ap_queue struct to be added to a hashtable * @reset_rc: the status response code from the last reset of the queue */ struct vfio_ap_queue { struct ap_matrix_mdev *matrix_mdev; dma_addr_t saved_iova; int apqn; #define VFIO_AP_ISC_INVALID 0xff unsigned char saved_isc; struct hlist_node mdev_qnode; unsigned int reset_rc; }; int vfio_ap_mdev_register(void); void vfio_ap_mdev_unregister(void); int vfio_ap_mdev_probe_queue(struct ap_device *queue); void vfio_ap_mdev_remove_queue(struct ap_device *queue); int vfio_ap_mdev_resource_in_use(unsigned long *apm, unsigned long *aqm); void vfio_ap_on_cfg_changed(struct ap_config_info *new_config_info, struct ap_config_info *old_config_info); void vfio_ap_on_scan_complete(struct ap_config_info *new_config_info, struct ap_config_info *old_config_info); #endif /* _VFIO_AP_PRIVATE_H_ */