diff options
Diffstat (limited to 'drivers/misc/mic/scif/scif_epd.h')
| -rw-r--r-- | drivers/misc/mic/scif/scif_epd.h | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/drivers/misc/mic/scif/scif_epd.h b/drivers/misc/mic/scif/scif_epd.h deleted file mode 100644 index 0b9dfe1cc06c..000000000000 --- a/drivers/misc/mic/scif/scif_epd.h +++ /dev/null @@ -1,200 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Intel MIC Platform Software Stack (MPSS) - * - * Copyright(c) 2014 Intel Corporation. - * - * Intel SCIF driver. - */ -#ifndef SCIF_EPD_H -#define SCIF_EPD_H - -#include <linux/delay.h> -#include <linux/scif.h> -#include <linux/scif_ioctl.h> - -#define SCIF_EPLOCK_HELD true - -enum scif_epd_state { - SCIFEP_UNBOUND, - SCIFEP_BOUND, - SCIFEP_LISTENING, - SCIFEP_CONNECTED, - SCIFEP_CONNECTING, - SCIFEP_MAPPING, - SCIFEP_CLOSING, - SCIFEP_CLLISTEN, - SCIFEP_DISCONNECTED, - SCIFEP_ZOMBIE -}; - -/* - * struct scif_conreq - Data structure added to the connection list. - * - * @msg: connection request message received - * @list: link to list of connection requests - */ -struct scif_conreq { - struct scifmsg msg; - struct list_head list; -}; - -/* Size of the RB for the Endpoint QP */ -#define SCIF_ENDPT_QP_SIZE 0x1000 - -/* - * scif_endpt_qp_info - SCIF endpoint queue pair - * - * @qp - Qpair for this endpoint - * @qp_offset - DMA address of the QP - * @gnt_pld - Payload in a SCIF_CNCT_GNT message containing the - * physical address of the remote_qp. - */ -struct scif_endpt_qp_info { - struct scif_qp *qp; - dma_addr_t qp_offset; - dma_addr_t gnt_pld; -}; - -/* - * struct scif_endpt - The SCIF endpoint data structure - * - * @state: end point state - * @lock: lock synchronizing access to endpoint fields like state etc - * @port: self port information - * @peer: peer port information - * @backlog: maximum pending connection requests - * @qp_info: Endpoint QP information for SCIF messaging - * @remote_dev: scifdev used by this endpt to communicate with remote node. - * @remote_ep: remote endpoint - * @conreqcnt: Keep track of number of connection requests. - * @files: Open file information used to match the id passed in with - * the flush routine. - * @conlist: list of connection requests - * @conwq: waitqueue for connection processing - * @discon: completion used during disconnection - * @sendwq: waitqueue used during sending messages - * @recvwq: waitqueue used during message receipt - * @sendlock: Synchronize ordering of messages sent - * @recvlock: Synchronize ordering of messages received - * @list: link to list of various endpoints like connected, listening etc - * @li_accept: pending ACCEPTREG - * @acceptcnt: pending ACCEPTREG cnt - * @liacceptlist: link to listen accept - * @miacceptlist: link to uaccept - * @listenep: associated listen ep - * @conn_work: Non blocking connect work - * @conn_port: Connection port - * @conn_err: Errors during connection - * @conn_async_state: Async connection - * @conn_pend_wq: Used by poll while waiting for incoming connections - * @conn_list: List of async connection requests - * @rma_info: Information for triggering SCIF RMA and DMA operations - * @mmu_list: link to list of MMU notifier cleanup work - * @anon: anonymous file for use in kernel mode scif poll - */ -struct scif_endpt { - enum scif_epd_state state; - spinlock_t lock; - struct scif_port_id port; - struct scif_port_id peer; - int backlog; - struct scif_endpt_qp_info qp_info; - struct scif_dev *remote_dev; - u64 remote_ep; - int conreqcnt; - struct files_struct *files; - struct list_head conlist; - wait_queue_head_t conwq; - struct completion discon; - wait_queue_head_t sendwq; - wait_queue_head_t recvwq; - struct mutex sendlock; - struct mutex recvlock; - struct list_head list; - struct list_head li_accept; - int acceptcnt; - struct list_head liacceptlist; - struct list_head miacceptlist; - struct scif_endpt *listenep; - struct scif_port_id conn_port; - int conn_err; - int conn_async_state; - wait_queue_head_t conn_pend_wq; - struct list_head conn_list; - struct scif_endpt_rma_info rma_info; - struct list_head mmu_list; - struct file *anon; -}; - -static inline int scifdev_alive(struct scif_endpt *ep) -{ - return _scifdev_alive(ep->remote_dev); -} - -/* - * scif_verify_epd: - * ep: SCIF endpoint - * - * Checks several generic error conditions and returns the - * appropriate error. - */ -static inline int scif_verify_epd(struct scif_endpt *ep) -{ - if (ep->state == SCIFEP_DISCONNECTED) - return -ECONNRESET; - - if (ep->state != SCIFEP_CONNECTED) - return -ENOTCONN; - - if (!scifdev_alive(ep)) - return -ENODEV; - - return 0; -} - -static inline int scif_anon_inode_getfile(scif_epd_t epd) -{ - epd->anon = anon_inode_getfile("scif", &scif_anon_fops, NULL, 0); - - return PTR_ERR_OR_ZERO(epd->anon); -} - -static inline void scif_anon_inode_fput(scif_epd_t epd) -{ - if (epd->anon) { - fput(epd->anon); - epd->anon = NULL; - } -} - -void scif_cleanup_zombie_epd(void); -void scif_teardown_ep(void *endpt); -void scif_cleanup_ep_qp(struct scif_endpt *ep); -void scif_add_epd_to_zombie_list(struct scif_endpt *ep, bool eplock_held); -void scif_get_node_info(void); -void scif_send_acks(struct scif_dev *dev); -void scif_conn_handler(struct work_struct *work); -int scif_rsrv_port(u16 port); -void scif_get_port(u16 port); -int scif_get_new_port(void); -void scif_put_port(u16 port); -int scif_user_send(scif_epd_t epd, void __user *msg, int len, int flags); -int scif_user_recv(scif_epd_t epd, void __user *msg, int len, int flags); -void scif_cnctreq(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_cnctgnt(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_cnctgnt_ack(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_cnctgnt_nack(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_cnctrej(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_discnct(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_discnt_ack(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_clientsend(struct scif_dev *scifdev, struct scifmsg *msg); -void scif_clientrcvd(struct scif_dev *scifdev, struct scifmsg *msg); -int __scif_connect(scif_epd_t epd, struct scif_port_id *dst, bool non_block); -int __scif_flush(scif_epd_t epd); -int scif_mmap(struct vm_area_struct *vma, scif_epd_t epd); -__poll_t __scif_pollfd(struct file *f, poll_table *wait, - struct scif_endpt *ep); -int __scif_pin_pages(void *addr, size_t len, int *out_prot, - int map_flags, scif_pinned_pages_t *pages); -#endif /* SCIF_EPD_H */ |