1 /*************************************************************************
2 Copyright (c) 2003-2007 Cavium Networks (support@cavium.com). All rights
3 reserved.
4
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are
8 met:
9
10 * Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12
13 * Redistributions in binary form must reproduce the above
14 copyright notice, this list of conditions and the following
15 disclaimer in the documentation and/or other materials provided
16 with the distribution.
17
18 * Neither the name of Cavium Networks nor the names of
19 its contributors may be used to endorse or promote products
20 derived from this software without specific prior written
21 permission.
22
23 This Software, including technical data, may be subject to U.S. export control laws, including the U.S. Export Administration Act and its associated regulations, and may be subject to export or import regulations in other countries.
24
25 TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
26 AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
27
28 *************************************************************************/
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD: releng/8.4/sys/mips/cavium/octe/ethernet-xaui.c 215938 2010-11-27 12:26:40Z jchandra $");
32
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/bus.h>
36 #include <sys/endian.h>
37 #include <sys/kernel.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40
41 #include <net/ethernet.h>
42 #include <net/if.h>
43
44 #include "wrapper-cvmx-includes.h"
45 #include "ethernet-headers.h"
46
47 extern int octeon_is_simulation(void);
48
49 static int cvm_oct_xaui_open(struct ifnet *ifp)
50 {
51 cvmx_gmxx_prtx_cfg_t gmx_cfg;
52 cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
53 int interface = INTERFACE(priv->port);
54 int index = INDEX(priv->port);
55 cvmx_helper_link_info_t link_info;
56
57 gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
58 gmx_cfg.s.en = 1;
59 cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
60
61 if (!octeon_is_simulation()) {
62 link_info = cvmx_helper_link_get(priv->port);
63 if (!link_info.s.link_up)
64 if_link_state_change(ifp, LINK_STATE_DOWN);
65 else
66 if_link_state_change(ifp, LINK_STATE_UP);
67 }
68 return 0;
69 }
70
71 static int cvm_oct_xaui_stop(struct ifnet *ifp)
72 {
73 cvmx_gmxx_prtx_cfg_t gmx_cfg;
74 cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
75 int interface = INTERFACE(priv->port);
76 int index = INDEX(priv->port);
77
78 gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
79 gmx_cfg.s.en = 0;
80 cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
81 return 0;
82 }
83
84 static void cvm_oct_xaui_poll(struct ifnet *ifp)
85 {
86 cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
87 cvmx_helper_link_info_t link_info;
88
89 link_info = cvmx_helper_link_get(priv->port);
90 if (link_info.u64 == priv->link_info)
91 return;
92
93 link_info = cvmx_helper_link_autoconf(priv->port);
94 priv->link_info = link_info.u64;
95 priv->need_link_update = 1;
96 }
97
98
99 int cvm_oct_xaui_init(struct ifnet *ifp)
100 {
101 cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
102 cvm_oct_common_init(ifp);
103 priv->open = cvm_oct_xaui_open;
104 priv->stop = cvm_oct_xaui_stop;
105 priv->stop(ifp);
106 if (!octeon_is_simulation())
107 priv->poll = cvm_oct_xaui_poll;
108
109 return 0;
110 }
111
112 void cvm_oct_xaui_uninit(struct ifnet *ifp)
113 {
114 cvm_oct_common_uninit(ifp);
115 }
116
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