1 /****************************************************************************
2  * Support for the Altera Triple Speed Ethernet 10/100/1000 Controller
3  *
4  * Copyright (C) 2014 Altera Corporation
5  *
6  * Author: Vince Bridgers <vbridgers2013@gmail.com>
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License version 2 as published
10  * by the Free Software Foundation, incorporated herein by reference.
11  */
12 
13 #include <stdio.h>
14 #include <string.h>
15 #include "internal.h"
16 
17 #define ALTERA_VERSION_MASK	0xffff
18 #define ALTERA_ETHTOOL_V1	1
19 
20 int
bitset(u32 val,int bit)21 bitset(u32 val, int bit)
22 {
23 	if (val & (1 << bit))
24 		return 1;
25 	return 0;
26 }
27 
altera_tse_dump_regs(struct ethtool_drvinfo * info maybe_unused,struct ethtool_regs * regs)28 int altera_tse_dump_regs(struct ethtool_drvinfo *info maybe_unused,
29 			 struct ethtool_regs *regs)
30 {
31 	int i;
32 	u32 *tsereg = (unsigned int *)regs->data;
33 	u32 version = regs->version;
34 
35 	if ((version & ALTERA_VERSION_MASK) > ALTERA_ETHTOOL_V1)
36 		return -1;
37 
38 	/*
39 	 * Version 1: Initial TSE driver release. No feature information
40 	 *	      available, 32-bits of version is equal to 1.
41 	 *
42 	 * Version 2: Lower 16-bits of version is 2, upper 16 bits are:
43 	 *	Bit 16 - SGMDA or MSGDMA Registers
44 	 *	Bit 17 - PCS Present
45 	 *	Bit 18 - Supplementary MAC Address Filter Registers Present
46 	 *	Bit 19 - Multicast Hash Filter Present
47 	 *	Bit 20 - IEEE 1588 Feature Present
48 	 */
49 	fprintf(stdout, "Altera TSE 10/100/1000 Registers, Version %d\n",
50 		version);
51 	fprintf(stdout, "---------------------------------------------\n");
52 	fprintf(stdout, "Revision               0x%08X\n", tsereg[0]);
53 	fprintf(stdout, "    Core Version       %d.%d\n",
54 		(tsereg[0] & 0xffff) >> 8,
55 		tsereg[0] & 0xff);
56 	fprintf(stdout, "    CustVersion        0x%08X\n", tsereg[0] >> 16);
57 	fprintf(stdout, "Scratch                0x%08X\n", tsereg[1]);
58 	fprintf(stdout, "Command/Config         0x%08X\n", tsereg[2]);
59 	fprintf(stdout, "    (0)TX_EN           %d\n", bitset(tsereg[2], 0));
60 	fprintf(stdout, "    (1)RX_EN           %d\n", bitset(tsereg[2], 1));
61 	fprintf(stdout, "    (2)XON_GEN         %d\n", bitset(tsereg[2], 2));
62 	fprintf(stdout, "    (3)ETH_SPEED       %d\n", bitset(tsereg[2], 3));
63 	fprintf(stdout, "    (4)PROMIS_EN       %d\n", bitset(tsereg[2], 4));
64 	fprintf(stdout, "    (5)PAD_EN          %d\n", bitset(tsereg[2], 5));
65 	fprintf(stdout, "    (6)CRC_FWD         %d\n", bitset(tsereg[2], 6));
66 	fprintf(stdout, "    (7)PAUSE_FWD       %d\n", bitset(tsereg[2], 7));
67 	fprintf(stdout, "    (8)PAUSE_IGN       %d\n", bitset(tsereg[2], 8));
68 	fprintf(stdout, "    (9)TXADDR_INS      %d\n", bitset(tsereg[2], 9));
69 	fprintf(stdout, "    (10)HD_EN          %d\n", bitset(tsereg[2], 10));
70 	fprintf(stdout, "    (11)EXCESS_COL     %d\n", bitset(tsereg[2], 11));
71 	fprintf(stdout, "    (12)LATE_COL       %d\n", bitset(tsereg[2], 12));
72 	fprintf(stdout, "    (13)SW_RESET       %d\n", bitset(tsereg[2], 13));
73 	fprintf(stdout, "    (14)MHASH_SEL      %d\n", bitset(tsereg[2], 14));
74 	fprintf(stdout, "    (15)LOOP_EN        %d\n", bitset(tsereg[2], 15));
75 	fprintf(stdout, "    (16-18)TX_ADDR_SEL %d\n",
76 		(tsereg[2] & 0x30000) >> 16);
77 	fprintf(stdout, "    (19)MAGIC_EN       %d\n", bitset(tsereg[2], 19));
78 	fprintf(stdout, "    (20)SLEEP          %d\n", bitset(tsereg[2], 20));
79 	fprintf(stdout, "    (21)WAKEUP         %d\n", bitset(tsereg[2], 21));
80 	fprintf(stdout, "    (22)XOFF_GEN       %d\n", bitset(tsereg[2], 22));
81 	fprintf(stdout, "    (23)CTRL_FRAME_EN  %d\n", bitset(tsereg[2], 23));
82 	fprintf(stdout, "    (24)NO_LEN_CHECK   %d\n", bitset(tsereg[2], 24));
83 	fprintf(stdout, "    (25)ENA_10         %d\n", bitset(tsereg[2], 25));
84 	fprintf(stdout, "    (26)RX_ERR_DISC    %d\n", bitset(tsereg[2], 26));
85 	fprintf(stdout, "    (31)CTRL_RESET     %d\n", bitset(tsereg[2], 31));
86 	fprintf(stdout, "mac_0                  0x%08X\n", tsereg[3]);
87 	fprintf(stdout, "mac_1                  0x%08X\n", tsereg[4]);
88 	fprintf(stdout, "frm_length             0x%08X\n", tsereg[5]);
89 	fprintf(stdout, "pause_quant            0x%08X\n", tsereg[6]);
90 	fprintf(stdout, "rx_section_empty       0x%08X\n", tsereg[7]);
91 	fprintf(stdout, "rx_section_full        0x%08X\n", tsereg[8]);
92 	fprintf(stdout, "tx_section_empty       0x%08X\n", tsereg[9]);
93 	fprintf(stdout, "tx_section_full        0x%08X\n", tsereg[0xa]);
94 	fprintf(stdout, "rx_almost_empty        0x%08X\n", tsereg[0xb]);
95 	fprintf(stdout, "rx_almost_full         0x%08X\n", tsereg[0xc]);
96 	fprintf(stdout, "tx_almost_empty        0x%08X\n", tsereg[0xd]);
97 	fprintf(stdout, "tx_almost_full         0x%08X\n", tsereg[0xe]);
98 	fprintf(stdout, "mdio_addr0             0x%08X\n", tsereg[0xf]);
99 	fprintf(stdout, "mdio_addr1             0x%08X\n", tsereg[0x10]);
100 	fprintf(stdout, "holdoff_quant          0x%08X\n", tsereg[0x11]);
101 
102 	fprintf(stdout, "tx_ipg_length          0x%08X\n", tsereg[0x17]);
103 	fprintf(stdout, "Transmit Command       0x%08X\n", tsereg[0x3a]);
104 	fprintf(stdout, "Receive Command        0x%08X\n", tsereg[0x3b]);
105 
106 	for (i = 0; i < 64; i++)
107 		fprintf(stdout, "Multicast Hash[%02d]     0x%08X\n",
108 			i,
109 			tsereg[0x40 + i]);
110 	return 0;
111 }
112 
113