From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/hv/hv_utils_transport.h | 51 ++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 kernel/drivers/hv/hv_utils_transport.h (limited to 'kernel/drivers/hv/hv_utils_transport.h') diff --git a/kernel/drivers/hv/hv_utils_transport.h b/kernel/drivers/hv/hv_utils_transport.h new file mode 100644 index 000000000..314c76ce1 --- /dev/null +++ b/kernel/drivers/hv/hv_utils_transport.h @@ -0,0 +1,51 @@ +/* + * Kernel/userspace transport abstraction for Hyper-V util driver. + * + * Copyright (C) 2015, Vitaly Kuznetsov + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + */ + +#ifndef _HV_UTILS_TRANSPORT_H +#define _HV_UTILS_TRANSPORT_H + +#include +#include + +enum hvutil_transport_mode { + HVUTIL_TRANSPORT_INIT = 0, + HVUTIL_TRANSPORT_NETLINK, + HVUTIL_TRANSPORT_CHARDEV, +}; + +struct hvutil_transport { + int mode; /* hvutil_transport_mode */ + struct file_operations fops; /* file operations */ + struct miscdevice mdev; /* misc device */ + struct cb_id cn_id; /* CN_*_IDX/CN_*_VAL */ + struct list_head list; /* hvt_list */ + int (*on_msg)(void *, int); /* callback on new user message */ + void (*on_reset)(void); /* callback when userspace drops */ + u8 *outmsg; /* message to the userspace */ + int outmsg_len; /* its length */ + wait_queue_head_t outmsg_q; /* poll/read wait queue */ + struct mutex outmsg_lock; /* protects outmsg */ +}; + +struct hvutil_transport *hvutil_transport_init(const char *name, + u32 cn_idx, u32 cn_val, + int (*on_msg)(void *, int), + void (*on_reset)(void)); +int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len); +void hvutil_transport_destroy(struct hvutil_transport *hvt); + +#endif /* _HV_UTILS_TRANSPORT_H */ -- cgit 1.2.3-korg