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authorAllen Hubbe <Allen.Hubbe@emc.com>2015-05-07 06:45:21 -0400
committerAllen Hubbe <Allen.Hubbe@emc.com>2015-07-02 10:09:23 -0400
commitec110bc7cc48d7806c9b65094e6afb19452d458f (patch)
treeaa46f83b5d7c7d104902aedd333c0f4f02817b29 /include/linux/ntb_transport.h
parentd8133356e99713bd023b229de107ddd6dd6d375a (diff)
NTB: Move files in preparation for NTB abstraction
This patch only moves files to their new locations, before applying the next two patches adding the NTB Abstraction layer. Splitting this patch from the next is intended make distinct which code is changed only due to moving the files, versus which are substantial code changes in adding the NTB Abstraction layer. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'include/linux/ntb_transport.h')
-rw-r--r--include/linux/ntb_transport.h88
1 files changed, 88 insertions, 0 deletions
diff --git a/include/linux/ntb_transport.h b/include/linux/ntb_transport.h
new file mode 100644
index 000000000000..f78b64cc09d5
--- /dev/null
+++ b/include/linux/ntb_transport.h
@@ -0,0 +1,88 @@
1/*
2 * This file is provided under a dual BSD/GPLv2 license. When using or
3 * redistributing this file, you may do so under either license.
4 *
5 * GPL LICENSE SUMMARY
6 *
7 * Copyright(c) 2012 Intel Corporation. All rights reserved.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
11 * published by the Free Software Foundation.
12 *
13 * BSD LICENSE
14 *
15 * Copyright(c) 2012 Intel Corporation. All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
19 * are met:
20 *
21 * * Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * * Redistributions in binary form must reproduce the above copy
24 * notice, this list of conditions and the following disclaimer in
25 * the documentation and/or other materials provided with the
26 * distribution.
27 * * Neither the name of Intel Corporation nor the names of its
28 * contributors may be used to endorse or promote products derived
29 * from this software without specific prior written permission.
30 *
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
37 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
39 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
41 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 *
43 * Intel PCIe NTB Linux driver
44 *
45 * Contact Information:
46 * Jon Mason <jon.mason@intel.com>
47 */
48
49struct ntb_transport_qp;
50
51struct ntb_client {
52 struct device_driver driver;
53 int (*probe)(struct pci_dev *pdev);
54 void (*remove)(struct pci_dev *pdev);
55};
56
57enum {
58 NTB_LINK_DOWN = 0,
59 NTB_LINK_UP,
60};
61
62int ntb_transport_register_client(struct ntb_client *drvr);
63void ntb_transport_unregister_client(struct ntb_client *drvr);
64int ntb_register_client_dev(char *device_name);
65void ntb_unregister_client_dev(char *device_name);
66
67struct ntb_queue_handlers {
68 void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data,
69 void *data, int len);
70 void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data,
71 void *data, int len);
72 void (*event_handler)(void *data, int status);
73};
74
75unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp);
76unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp);
77struct ntb_transport_qp *
78ntb_transport_create_queue(void *data, struct pci_dev *pdev,
79 const struct ntb_queue_handlers *handlers);
80void ntb_transport_free_queue(struct ntb_transport_qp *qp);
81int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
82 unsigned int len);
83int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
84 unsigned int len);
85void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len);
86void ntb_transport_link_up(struct ntb_transport_qp *qp);
87void ntb_transport_link_down(struct ntb_transport_qp *qp);
88bool ntb_transport_link_query(struct ntb_transport_qp *qp);