1 /*******************************************************************************
2   DWMAC Management Counters
3 
4   Copyright (C) 2011  STMicroelectronics Ltd
5 
6   This program is free software; you can redistribute it and/or modify it
7   under the terms and conditions of the GNU General Public License,
8   version 2, as published by the Free Software Foundation.
9 
10   This program is distributed in the hope it will be useful, but WITHOUT
11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13   more details.
14 
15   You should have received a copy of the GNU General Public License along with
16   this program; if not, write to the Free Software Foundation, Inc.,
17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18 
19   The full GNU General Public License is included in this distribution in
20   the file called "COPYING".
21 
22   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
23 *******************************************************************************/
24 
25 #include <linux/kernel.h>
26 #include <linux/io.h>
27 #include "mmc.h"
28 
29 /* MAC Management Counters register offset */
30 
31 #define MMC_CNTRL		0x00000100	/* MMC Control */
32 #define MMC_RX_INTR		0x00000104	/* MMC RX Interrupt */
33 #define MMC_TX_INTR		0x00000108	/* MMC TX Interrupt */
34 #define MMC_RX_INTR_MASK	0x0000010c	/* MMC Interrupt Mask */
35 #define MMC_TX_INTR_MASK	0x00000110	/* MMC Interrupt Mask */
36 #define MMC_DEFAUL_MASK		0xffffffff
37 
38 /* MMC TX counter registers */
39 
40 /* Note:
41  * _GB register stands for good and bad frames
42  * _G is for good only.
43  */
44 #define MMC_TX_OCTETCOUNT_GB		0x00000114
45 #define MMC_TX_FRAMECOUNT_GB		0x00000118
46 #define MMC_TX_BROADCASTFRAME_G		0x0000011c
47 #define MMC_TX_MULTICASTFRAME_G		0x00000120
48 #define MMC_TX_64_OCTETS_GB		0x00000124
49 #define MMC_TX_65_TO_127_OCTETS_GB	0x00000128
50 #define MMC_TX_128_TO_255_OCTETS_GB	0x0000012c
51 #define MMC_TX_256_TO_511_OCTETS_GB	0x00000130
52 #define MMC_TX_512_TO_1023_OCTETS_GB	0x00000134
53 #define MMC_TX_1024_TO_MAX_OCTETS_GB	0x00000138
54 #define MMC_TX_UNICAST_GB		0x0000013c
55 #define MMC_TX_MULTICAST_GB		0x00000140
56 #define MMC_TX_BROADCAST_GB		0x00000144
57 #define MMC_TX_UNDERFLOW_ERROR		0x00000148
58 #define MMC_TX_SINGLECOL_G		0x0000014c
59 #define MMC_TX_MULTICOL_G		0x00000150
60 #define MMC_TX_DEFERRED			0x00000154
61 #define MMC_TX_LATECOL			0x00000158
62 #define MMC_TX_EXESSCOL			0x0000015c
63 #define MMC_TX_CARRIER_ERROR		0x00000160
64 #define MMC_TX_OCTETCOUNT_G		0x00000164
65 #define MMC_TX_FRAMECOUNT_G		0x00000168
66 #define MMC_TX_EXCESSDEF		0x0000016c
67 #define MMC_TX_PAUSE_FRAME		0x00000170
68 #define MMC_TX_VLAN_FRAME_G		0x00000174
69 
70 /* MMC RX counter registers */
71 #define MMC_RX_FRAMECOUNT_GB		0x00000180
72 #define MMC_RX_OCTETCOUNT_GB		0x00000184
73 #define MMC_RX_OCTETCOUNT_G		0x00000188
74 #define MMC_RX_BROADCASTFRAME_G		0x0000018c
75 #define MMC_RX_MULTICASTFRAME_G		0x00000190
76 #define MMC_RX_CRC_ERRROR		0x00000194
77 #define MMC_RX_ALIGN_ERROR		0x00000198
78 #define MMC_RX_RUN_ERROR		0x0000019C
79 #define MMC_RX_JABBER_ERROR		0x000001A0
80 #define MMC_RX_UNDERSIZE_G		0x000001A4
81 #define MMC_RX_OVERSIZE_G		0x000001A8
82 #define MMC_RX_64_OCTETS_GB		0x000001AC
83 #define MMC_RX_65_TO_127_OCTETS_GB	0x000001b0
84 #define MMC_RX_128_TO_255_OCTETS_GB	0x000001b4
85 #define MMC_RX_256_TO_511_OCTETS_GB	0x000001b8
86 #define MMC_RX_512_TO_1023_OCTETS_GB	0x000001bc
87 #define MMC_RX_1024_TO_MAX_OCTETS_GB	0x000001c0
88 #define MMC_RX_UNICAST_G		0x000001c4
89 #define MMC_RX_LENGTH_ERROR		0x000001c8
90 #define MMC_RX_AUTOFRANGETYPE		0x000001cc
91 #define MMC_RX_PAUSE_FRAMES		0x000001d0
92 #define MMC_RX_FIFO_OVERFLOW		0x000001d4
93 #define MMC_RX_VLAN_FRAMES_GB		0x000001d8
94 #define MMC_RX_WATCHDOG_ERROR		0x000001dc
95 /* IPC*/
96 #define MMC_RX_IPC_INTR_MASK		0x00000200
97 #define MMC_RX_IPC_INTR			0x00000208
98 /* IPv4*/
99 #define MMC_RX_IPV4_GD			0x00000210
100 #define MMC_RX_IPV4_HDERR		0x00000214
101 #define MMC_RX_IPV4_NOPAY		0x00000218
102 #define MMC_RX_IPV4_FRAG		0x0000021C
103 #define MMC_RX_IPV4_UDSBL		0x00000220
104 
105 #define MMC_RX_IPV4_GD_OCTETS		0x00000250
106 #define MMC_RX_IPV4_HDERR_OCTETS	0x00000254
107 #define MMC_RX_IPV4_NOPAY_OCTETS	0x00000258
108 #define MMC_RX_IPV4_FRAG_OCTETS		0x0000025c
109 #define MMC_RX_IPV4_UDSBL_OCTETS	0x00000260
110 
111 /* IPV6*/
112 #define MMC_RX_IPV6_GD_OCTETS		0x00000264
113 #define MMC_RX_IPV6_HDERR_OCTETS	0x00000268
114 #define MMC_RX_IPV6_NOPAY_OCTETS	0x0000026c
115 
116 #define MMC_RX_IPV6_GD			0x00000224
117 #define MMC_RX_IPV6_HDERR		0x00000228
118 #define MMC_RX_IPV6_NOPAY		0x0000022c
119 
120 /* Protocols*/
121 #define MMC_RX_UDP_GD			0x00000230
122 #define MMC_RX_UDP_ERR			0x00000234
123 #define MMC_RX_TCP_GD			0x00000238
124 #define MMC_RX_TCP_ERR			0x0000023c
125 #define MMC_RX_ICMP_GD			0x00000240
126 #define MMC_RX_ICMP_ERR			0x00000244
127 
128 #define MMC_RX_UDP_GD_OCTETS		0x00000270
129 #define MMC_RX_UDP_ERR_OCTETS		0x00000274
130 #define MMC_RX_TCP_GD_OCTETS		0x00000278
131 #define MMC_RX_TCP_ERR_OCTETS		0x0000027c
132 #define MMC_RX_ICMP_GD_OCTETS		0x00000280
133 #define MMC_RX_ICMP_ERR_OCTETS		0x00000284
134 
135 void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
136 {
137 	u32 value = readl(ioaddr + MMC_CNTRL);
138 
139 	value |= (mode & 0x3F);
140 
141 	writel(value, ioaddr + MMC_CNTRL);
142 
143 	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
144 		 MMC_CNTRL, value);
145 }
146 
147 /* To mask all all interrupts.*/
148 void dwmac_mmc_intr_all_mask(void __iomem *ioaddr)
149 {
150 	writel(MMC_DEFAUL_MASK, ioaddr + MMC_RX_INTR_MASK);
151 	writel(MMC_DEFAUL_MASK, ioaddr + MMC_TX_INTR_MASK);
152 }
153 
154 /* This reads the MAC core counters (if actaully supported).
155  * by default the MMC core is programmed to reset each
156  * counter after a read. So all the field of the mmc struct
157  * have to be incremented.
158  */
159 void dwmac_mmc_read(void __iomem *ioaddr, struct stmmac_counters *mmc)
160 {
161 	mmc->mmc_tx_octetcount_gb += readl(ioaddr + MMC_TX_OCTETCOUNT_GB);
162 	mmc->mmc_tx_framecount_gb += readl(ioaddr + MMC_TX_FRAMECOUNT_GB);
163 	mmc->mmc_tx_broadcastframe_g += readl(ioaddr + MMC_TX_BROADCASTFRAME_G);
164 	mmc->mmc_tx_multicastframe_g += readl(ioaddr + MMC_TX_MULTICASTFRAME_G);
165 	mmc->mmc_tx_64_octets_gb += readl(ioaddr + MMC_TX_64_OCTETS_GB);
166 	mmc->mmc_tx_65_to_127_octets_gb +=
167 	    readl(ioaddr + MMC_TX_65_TO_127_OCTETS_GB);
168 	mmc->mmc_tx_128_to_255_octets_gb +=
169 	    readl(ioaddr + MMC_TX_128_TO_255_OCTETS_GB);
170 	mmc->mmc_tx_256_to_511_octets_gb +=
171 	    readl(ioaddr + MMC_TX_256_TO_511_OCTETS_GB);
172 	mmc->mmc_tx_512_to_1023_octets_gb +=
173 	    readl(ioaddr + MMC_TX_512_TO_1023_OCTETS_GB);
174 	mmc->mmc_tx_1024_to_max_octets_gb +=
175 	    readl(ioaddr + MMC_TX_1024_TO_MAX_OCTETS_GB);
176 	mmc->mmc_tx_unicast_gb += readl(ioaddr + MMC_TX_UNICAST_GB);
177 	mmc->mmc_tx_multicast_gb += readl(ioaddr + MMC_TX_MULTICAST_GB);
178 	mmc->mmc_tx_broadcast_gb += readl(ioaddr + MMC_TX_BROADCAST_GB);
179 	mmc->mmc_tx_underflow_error += readl(ioaddr + MMC_TX_UNDERFLOW_ERROR);
180 	mmc->mmc_tx_singlecol_g += readl(ioaddr + MMC_TX_SINGLECOL_G);
181 	mmc->mmc_tx_multicol_g += readl(ioaddr + MMC_TX_MULTICOL_G);
182 	mmc->mmc_tx_deferred += readl(ioaddr + MMC_TX_DEFERRED);
183 	mmc->mmc_tx_latecol += readl(ioaddr + MMC_TX_LATECOL);
184 	mmc->mmc_tx_exesscol += readl(ioaddr + MMC_TX_EXESSCOL);
185 	mmc->mmc_tx_carrier_error += readl(ioaddr + MMC_TX_CARRIER_ERROR);
186 	mmc->mmc_tx_octetcount_g += readl(ioaddr + MMC_TX_OCTETCOUNT_G);
187 	mmc->mmc_tx_framecount_g += readl(ioaddr + MMC_TX_FRAMECOUNT_G);
188 	mmc->mmc_tx_excessdef += readl(ioaddr + MMC_TX_EXCESSDEF);
189 	mmc->mmc_tx_pause_frame += readl(ioaddr + MMC_TX_PAUSE_FRAME);
190 	mmc->mmc_tx_vlan_frame_g += readl(ioaddr + MMC_TX_VLAN_FRAME_G);
191 
192 	/* MMC RX counter registers */
193 	mmc->mmc_rx_framecount_gb += readl(ioaddr + MMC_RX_FRAMECOUNT_GB);
194 	mmc->mmc_rx_octetcount_gb += readl(ioaddr + MMC_RX_OCTETCOUNT_GB);
195 	mmc->mmc_rx_octetcount_g += readl(ioaddr + MMC_RX_OCTETCOUNT_G);
196 	mmc->mmc_rx_broadcastframe_g += readl(ioaddr + MMC_RX_BROADCASTFRAME_G);
197 	mmc->mmc_rx_multicastframe_g += readl(ioaddr + MMC_RX_MULTICASTFRAME_G);
198 	mmc->mmc_rx_crc_errror += readl(ioaddr + MMC_RX_CRC_ERRROR);
199 	mmc->mmc_rx_align_error += readl(ioaddr + MMC_RX_ALIGN_ERROR);
200 	mmc->mmc_rx_run_error += readl(ioaddr + MMC_RX_RUN_ERROR);
201 	mmc->mmc_rx_jabber_error += readl(ioaddr + MMC_RX_JABBER_ERROR);
202 	mmc->mmc_rx_undersize_g += readl(ioaddr + MMC_RX_UNDERSIZE_G);
203 	mmc->mmc_rx_oversize_g += readl(ioaddr + MMC_RX_OVERSIZE_G);
204 	mmc->mmc_rx_64_octets_gb += readl(ioaddr + MMC_RX_64_OCTETS_GB);
205 	mmc->mmc_rx_65_to_127_octets_gb +=
206 	    readl(ioaddr + MMC_RX_65_TO_127_OCTETS_GB);
207 	mmc->mmc_rx_128_to_255_octets_gb +=
208 	    readl(ioaddr + MMC_RX_128_TO_255_OCTETS_GB);
209 	mmc->mmc_rx_256_to_511_octets_gb +=
210 	    readl(ioaddr + MMC_RX_256_TO_511_OCTETS_GB);
211 	mmc->mmc_rx_512_to_1023_octets_gb +=
212 	    readl(ioaddr + MMC_RX_512_TO_1023_OCTETS_GB);
213 	mmc->mmc_rx_1024_to_max_octets_gb +=
214 	    readl(ioaddr + MMC_RX_1024_TO_MAX_OCTETS_GB);
215 	mmc->mmc_rx_unicast_g += readl(ioaddr + MMC_RX_UNICAST_G);
216 	mmc->mmc_rx_length_error += readl(ioaddr + MMC_RX_LENGTH_ERROR);
217 	mmc->mmc_rx_autofrangetype += readl(ioaddr + MMC_RX_AUTOFRANGETYPE);
218 	mmc->mmc_rx_pause_frames += readl(ioaddr + MMC_RX_PAUSE_FRAMES);
219 	mmc->mmc_rx_fifo_overflow += readl(ioaddr + MMC_RX_FIFO_OVERFLOW);
220 	mmc->mmc_rx_vlan_frames_gb += readl(ioaddr + MMC_RX_VLAN_FRAMES_GB);
221 	mmc->mmc_rx_watchdog_error += readl(ioaddr + MMC_RX_WATCHDOG_ERROR);
222 	/* IPC */
223 	mmc->mmc_rx_ipc_intr_mask += readl(ioaddr + MMC_RX_IPC_INTR_MASK);
224 	mmc->mmc_rx_ipc_intr += readl(ioaddr + MMC_RX_IPC_INTR);
225 	/* IPv4 */
226 	mmc->mmc_rx_ipv4_gd += readl(ioaddr + MMC_RX_IPV4_GD);
227 	mmc->mmc_rx_ipv4_hderr += readl(ioaddr + MMC_RX_IPV4_HDERR);
228 	mmc->mmc_rx_ipv4_nopay += readl(ioaddr + MMC_RX_IPV4_NOPAY);
229 	mmc->mmc_rx_ipv4_frag += readl(ioaddr + MMC_RX_IPV4_FRAG);
230 	mmc->mmc_rx_ipv4_udsbl += readl(ioaddr + MMC_RX_IPV4_UDSBL);
231 
232 	mmc->mmc_rx_ipv4_gd_octets += readl(ioaddr + MMC_RX_IPV4_GD_OCTETS);
233 	mmc->mmc_rx_ipv4_hderr_octets +=
234 	    readl(ioaddr + MMC_RX_IPV4_HDERR_OCTETS);
235 	mmc->mmc_rx_ipv4_nopay_octets +=
236 	    readl(ioaddr + MMC_RX_IPV4_NOPAY_OCTETS);
237 	mmc->mmc_rx_ipv4_frag_octets += readl(ioaddr + MMC_RX_IPV4_FRAG_OCTETS);
238 	mmc->mmc_rx_ipv4_udsbl_octets +=
239 	    readl(ioaddr + MMC_RX_IPV4_UDSBL_OCTETS);
240 
241 	/* IPV6 */
242 	mmc->mmc_rx_ipv6_gd_octets += readl(ioaddr + MMC_RX_IPV6_GD_OCTETS);
243 	mmc->mmc_rx_ipv6_hderr_octets +=
244 	    readl(ioaddr + MMC_RX_IPV6_HDERR_OCTETS);
245 	mmc->mmc_rx_ipv6_nopay_octets +=
246 	    readl(ioaddr + MMC_RX_IPV6_NOPAY_OCTETS);
247 
248 	mmc->mmc_rx_ipv6_gd += readl(ioaddr + MMC_RX_IPV6_GD);
249 	mmc->mmc_rx_ipv6_hderr += readl(ioaddr + MMC_RX_IPV6_HDERR);
250 	mmc->mmc_rx_ipv6_nopay += readl(ioaddr + MMC_RX_IPV6_NOPAY);
251 
252 	/* Protocols */
253 	mmc->mmc_rx_udp_gd += readl(ioaddr + MMC_RX_UDP_GD);
254 	mmc->mmc_rx_udp_err += readl(ioaddr + MMC_RX_UDP_ERR);
255 	mmc->mmc_rx_tcp_gd += readl(ioaddr + MMC_RX_TCP_GD);
256 	mmc->mmc_rx_tcp_err += readl(ioaddr + MMC_RX_TCP_ERR);
257 	mmc->mmc_rx_icmp_gd += readl(ioaddr + MMC_RX_ICMP_GD);
258 	mmc->mmc_rx_icmp_err += readl(ioaddr + MMC_RX_ICMP_ERR);
259 
260 	mmc->mmc_rx_udp_gd_octets += readl(ioaddr + MMC_RX_UDP_GD_OCTETS);
261 	mmc->mmc_rx_udp_err_octets += readl(ioaddr + MMC_RX_UDP_ERR_OCTETS);
262 	mmc->mmc_rx_tcp_gd_octets += readl(ioaddr + MMC_RX_TCP_GD_OCTETS);
263 	mmc->mmc_rx_tcp_err_octets += readl(ioaddr + MMC_RX_TCP_ERR_OCTETS);
264 	mmc->mmc_rx_icmp_gd_octets += readl(ioaddr + MMC_RX_ICMP_GD_OCTETS);
265 	mmc->mmc_rx_icmp_err_octets += readl(ioaddr + MMC_RX_ICMP_ERR_OCTETS);
266 }
267