xref: /illumos-gate/usr/src/uts/common/io/xge/hal/include/xgehal-event.h (revision 4fceebdf03eeac0d7c58a4f70cc19b00a8c40a73)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  *
21  * Copyright (c) 2002-2006 Neterion, Inc.
22  */
23 
24 #ifndef XGE_HAL_EVENT_H
25 #define XGE_HAL_EVENT_H
26 
27 #include "xge-os-pal.h"
28 
29 __EXTERN_BEGIN_DECLS
30 
31 #define XGE_HAL_EVENT_BASE		0
32 #define XGE_LL_EVENT_BASE		100
33 
34 /**
35  * enum xge_hal_event_e - Enumerates slow-path HAL events.
36  * @XGE_HAL_EVENT_UNKNOWN: Unknown (and invalid) event.
37  * @XGE_HAL_EVENT_SERR: Serious hardware error event.
38  * @XGE_HAL_EVENT_LINK_IS_UP: The link state has changed from 'down' to
39  * 'up'; upper-layer driver (typically, link layer) is
40  * supposed to wake the queue, etc.
41  * @XGE_HAL_EVENT_LINK_IS_DOWN: Link-down event.
42  *                    The link state has changed from 'down' to 'up';
43  *                    upper-layer driver is supposed to stop traffic, etc.
44  * @XGE_HAL_EVENT_ECCERR: ECC error event.
45  * @XGE_HAL_EVENT_PARITYERR: Parity error event.
46  * @XGE_HAL_EVENT_TARGETABORT: Target abort event. Used when device
47  * aborts transmit operation with the corresponding transfer code
48  * (for T_CODE enum see xgehal-fifo.h and xgehal-ring.h)
49  * @XGE_HAL_EVENT_SLOT_FREEZE: Slot-freeze event. Driver tries to distinguish
50  * slot-freeze from the rest critical events (e.g. ECC) when it is
51  * impossible to PIO read "through" the bus, i.e. when getting all-foxes.
52  *
53  * xge_hal_event_e enumerates slow-path HAL eventis.
54  *
55  * See also: xge_hal_uld_cbs_t{}, xge_uld_link_up_f{},
56  * xge_uld_link_down_f{}.
57  */
58 typedef enum xge_hal_event_e {
59 	XGE_HAL_EVENT_UNKNOWN		= 0,
60 	/* HAL events */
61 	XGE_HAL_EVENT_SERR		= XGE_HAL_EVENT_BASE + 1,
62 	XGE_HAL_EVENT_LINK_IS_UP	= XGE_HAL_EVENT_BASE + 2,
63 	XGE_HAL_EVENT_LINK_IS_DOWN	= XGE_HAL_EVENT_BASE + 3,
64 	XGE_HAL_EVENT_ECCERR		= XGE_HAL_EVENT_BASE + 4,
65 	XGE_HAL_EVENT_PARITYERR		= XGE_HAL_EVENT_BASE + 5,
66 	XGE_HAL_EVENT_TARGETABORT       = XGE_HAL_EVENT_BASE + 6,
67 	XGE_HAL_EVENT_SLOT_FREEZE       = XGE_HAL_EVENT_BASE + 7,
68 } xge_hal_event_e;
69 
70 __EXTERN_END_DECLS
71 
72 #endif /* XGE_HAL_EVENT_H */
73