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1 /****************************************************************************
2  * Driver for Solarflare network controllers and boards
3  * Copyright 2007-2013 Solarflare Communications Inc.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 as published
7  * by the Free Software Foundation, incorporated herein by reference.
8  */
9 
10 #ifndef EFX_ENUM_H
11 #define EFX_ENUM_H
12 
13 /**
14  * enum efx_loopback_mode - loopback modes
15  * @LOOPBACK_NONE: no loopback
16  * @LOOPBACK_DATA: data path loopback
17  * @LOOPBACK_GMAC: loopback within GMAC
18  * @LOOPBACK_XGMII: loopback after XMAC
19  * @LOOPBACK_XGXS: loopback within BPX after XGXS
20  * @LOOPBACK_XAUI: loopback within BPX before XAUI serdes
21  * @LOOPBACK_GMII: loopback within BPX after GMAC
22  * @LOOPBACK_SGMII: loopback within BPX within SGMII
23  * @LOOPBACK_XGBR: loopback within BPX within XGBR
24  * @LOOPBACK_XFI: loopback within BPX before XFI serdes
25  * @LOOPBACK_XAUI_FAR: loopback within BPX after XAUI serdes
26  * @LOOPBACK_GMII_FAR: loopback within BPX before SGMII
27  * @LOOPBACK_SGMII_FAR: loopback within BPX after SGMII
28  * @LOOPBACK_XFI_FAR: loopback after XFI serdes
29  * @LOOPBACK_GPHY: loopback within 1G PHY at unspecified level
30  * @LOOPBACK_PHYXS: loopback within 10G PHY at PHYXS level
31  * @LOOPBACK_PCS: loopback within 10G PHY at PCS level
32  * @LOOPBACK_PMAPMD: loopback within 10G PHY at PMAPMD level
33  * @LOOPBACK_XPORT: cross port loopback
34  * @LOOPBACK_XGMII_WS: wireside loopback excluding XMAC
35  * @LOOPBACK_XAUI_WS: wireside loopback within BPX within XAUI serdes
36  * @LOOPBACK_XAUI_WS_FAR: wireside loopback within BPX including XAUI serdes
37  * @LOOPBACK_XAUI_WS_NEAR: wireside loopback within BPX excluding XAUI serdes
38  * @LOOPBACK_GMII_WS: wireside loopback excluding GMAC
39  * @LOOPBACK_XFI_WS: wireside loopback excluding XFI serdes
40  * @LOOPBACK_XFI_WS_FAR: wireside loopback including XFI serdes
41  * @LOOPBACK_PHYXS_WS: wireside loopback within 10G PHY at PHYXS level
42  */
43 /* Please keep up-to-date w.r.t the following two #defines */
44 enum efx_loopback_mode {
45 	LOOPBACK_NONE = 0,
46 	LOOPBACK_DATA = 1,
47 	LOOPBACK_GMAC = 2,
48 	LOOPBACK_XGMII = 3,
49 	LOOPBACK_XGXS = 4,
50 	LOOPBACK_XAUI = 5,
51 	LOOPBACK_GMII = 6,
52 	LOOPBACK_SGMII = 7,
53 	LOOPBACK_XGBR = 8,
54 	LOOPBACK_XFI = 9,
55 	LOOPBACK_XAUI_FAR = 10,
56 	LOOPBACK_GMII_FAR = 11,
57 	LOOPBACK_SGMII_FAR = 12,
58 	LOOPBACK_XFI_FAR = 13,
59 	LOOPBACK_GPHY = 14,
60 	LOOPBACK_PHYXS = 15,
61 	LOOPBACK_PCS = 16,
62 	LOOPBACK_PMAPMD = 17,
63 	LOOPBACK_XPORT = 18,
64 	LOOPBACK_XGMII_WS = 19,
65 	LOOPBACK_XAUI_WS = 20,
66 	LOOPBACK_XAUI_WS_FAR = 21,
67 	LOOPBACK_XAUI_WS_NEAR = 22,
68 	LOOPBACK_GMII_WS = 23,
69 	LOOPBACK_XFI_WS = 24,
70 	LOOPBACK_XFI_WS_FAR = 25,
71 	LOOPBACK_PHYXS_WS = 26,
72 	LOOPBACK_MAX
73 };
74 #define LOOPBACK_TEST_MAX LOOPBACK_PMAPMD
75 
76 /* These loopbacks occur within the controller */
77 #define LOOPBACKS_INTERNAL ((1 << LOOPBACK_DATA) |		\
78 			    (1 << LOOPBACK_GMAC) |		\
79 			    (1 << LOOPBACK_XGMII)|		\
80 			    (1 << LOOPBACK_XGXS) |		\
81 			    (1 << LOOPBACK_XAUI) |		\
82 			    (1 << LOOPBACK_GMII) |		\
83 			    (1 << LOOPBACK_SGMII) |		\
84 			    (1 << LOOPBACK_SGMII) |		\
85 			    (1 << LOOPBACK_XGBR) |		\
86 			    (1 << LOOPBACK_XFI) |		\
87 			    (1 << LOOPBACK_XAUI_FAR) |		\
88 			    (1 << LOOPBACK_GMII_FAR) |		\
89 			    (1 << LOOPBACK_SGMII_FAR) |		\
90 			    (1 << LOOPBACK_XFI_FAR) |		\
91 			    (1 << LOOPBACK_XGMII_WS) |		\
92 			    (1 << LOOPBACK_XAUI_WS) |		\
93 			    (1 << LOOPBACK_XAUI_WS_FAR) |	\
94 			    (1 << LOOPBACK_XAUI_WS_NEAR) |	\
95 			    (1 << LOOPBACK_GMII_WS) |		\
96 			    (1 << LOOPBACK_XFI_WS) |		\
97 			    (1 << LOOPBACK_XFI_WS_FAR))
98 
99 #define LOOPBACKS_WS ((1 << LOOPBACK_XGMII_WS) |		\
100 		      (1 << LOOPBACK_XAUI_WS) |			\
101 		      (1 << LOOPBACK_XAUI_WS_FAR) |		\
102 		      (1 << LOOPBACK_XAUI_WS_NEAR) |		\
103 		      (1 << LOOPBACK_GMII_WS) |			\
104 		      (1 << LOOPBACK_XFI_WS) |			\
105 		      (1 << LOOPBACK_XFI_WS_FAR) |		\
106 		      (1 << LOOPBACK_PHYXS_WS))
107 
108 #define LOOPBACKS_EXTERNAL(_efx)					\
109 	((_efx)->loopback_modes & ~LOOPBACKS_INTERNAL &			\
110 	 ~(1 << LOOPBACK_NONE))
111 
112 #define LOOPBACK_MASK(_efx)			\
113 	(1 << (_efx)->loopback_mode)
114 
115 #define LOOPBACK_INTERNAL(_efx)				\
116 	(!!(LOOPBACKS_INTERNAL & LOOPBACK_MASK(_efx)))
117 
118 #define LOOPBACK_EXTERNAL(_efx)				\
119 	(!!(LOOPBACK_MASK(_efx) & LOOPBACKS_EXTERNAL(_efx)))
120 
121 #define LOOPBACK_CHANGED(_from, _to, _mask)				\
122 	(!!((LOOPBACK_MASK(_from) ^ LOOPBACK_MASK(_to)) & (_mask)))
123 
124 #define LOOPBACK_OUT_OF(_from, _to, _mask)				\
125 	((LOOPBACK_MASK(_from) & (_mask)) && !(LOOPBACK_MASK(_to) & (_mask)))
126 
127 /*****************************************************************************/
128 
129 /**
130  * enum reset_type - reset types
131  *
132  * %RESET_TYPE_INVSIBLE, %RESET_TYPE_ALL, %RESET_TYPE_WORLD and
133  * %RESET_TYPE_DISABLE specify the method/scope of the reset.  The
134  * other valuesspecify reasons, which efx_schedule_reset() will choose
135  * a method for.
136  *
137  * Reset methods are numbered in order of increasing scope.
138  *
139  * @RESET_TYPE_INVISIBLE: Reset datapath and MAC (Falcon only)
140  * @RESET_TYPE_RECOVER_OR_ALL: Try to recover. Apply RESET_TYPE_ALL
141  * if unsuccessful.
142  * @RESET_TYPE_ALL: Reset datapath, MAC and PHY
143  * @RESET_TYPE_WORLD: Reset as much as possible
144  * @RESET_TYPE_RECOVER_OR_DISABLE: Try to recover. Apply RESET_TYPE_DISABLE if
145  * unsuccessful.
146  * @RESET_TYPE_DATAPATH: Reset datapath only.
147  * @RESET_TYPE_MC_BIST: MC entering BIST mode.
148  * @RESET_TYPE_DISABLE: Reset datapath, MAC and PHY; leave NIC disabled
149  * @RESET_TYPE_TX_WATCHDOG: reset due to TX watchdog
150  * @RESET_TYPE_INT_ERROR: reset due to internal error
151  * @RESET_TYPE_RX_RECOVERY: reset to recover from RX datapath errors
152  * @RESET_TYPE_DMA_ERROR: DMA error
153  * @RESET_TYPE_TX_SKIP: hardware completed empty tx descriptors
154  * @RESET_TYPE_MC_FAILURE: MC reboot/assertion
155  * @RESET_TYPE_MCDI_TIMEOUT: MCDI timeout.
156  */
157 enum reset_type {
158 	RESET_TYPE_INVISIBLE,
159 	RESET_TYPE_RECOVER_OR_ALL,
160 	RESET_TYPE_ALL,
161 	RESET_TYPE_WORLD,
162 	RESET_TYPE_RECOVER_OR_DISABLE,
163 	RESET_TYPE_DATAPATH,
164 	RESET_TYPE_MC_BIST,
165 	RESET_TYPE_DISABLE,
166 	RESET_TYPE_MAX_METHOD,
167 	RESET_TYPE_TX_WATCHDOG,
168 	RESET_TYPE_INT_ERROR,
169 	RESET_TYPE_RX_RECOVERY,
170 	RESET_TYPE_DMA_ERROR,
171 	RESET_TYPE_TX_SKIP,
172 	RESET_TYPE_MC_FAILURE,
173 	/* RESET_TYPE_MCDI_TIMEOUT is actually a method, not just a reason, but
174 	 * it doesn't fit the scope hierarchy (not well-ordered by inclusion).
175 	 * We encode this by having its enum value be greater than
176 	 * RESET_TYPE_MAX_METHOD. This also prevents issuing it with
177 	 * efx_ioctl_reset.
178 	 */
179 	RESET_TYPE_MCDI_TIMEOUT,
180 	RESET_TYPE_MAX,
181 };
182 
183 #endif /* EFX_ENUM_H */
184