1 /* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
2  *
3  * Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
4  *
5  * This program is dual-licensed; you may select either version 2 of
6  * the GNU General Public License ("GPL") or BSD license ("BSD").
7  *
8  * This Synopsys DWC XLGMAC software driver and associated documentation
9  * (hereinafter the "Software") is an unsupported proprietary work of
10  * Synopsys, Inc. unless otherwise expressly agreed to in writing between
11  * Synopsys and you. The Software IS NOT an item of Licensed Software or a
12  * Licensed Product under any End User Software License Agreement or
13  * Agreement for Licensed Products with Synopsys or any supplement thereto.
14  * Synopsys is a registered trademark of Synopsys, Inc. Other names included
15  * in the SOFTWARE may be the trademarks of their respective owners.
16  */
17 
18 #include <linux/kernel.h>
19 #include <linux/module.h>
20 
21 #include "dwc-xlgmac.h"
22 #include "dwc-xlgmac-reg.h"
23 
24 MODULE_LICENSE("Dual BSD/GPL");
25 
26 static int debug = -1;
27 module_param(debug, int, 0644);
28 MODULE_PARM_DESC(debug, "DWC ethernet debug level (0=none,...,16=all)");
29 static const u32 default_msg_level = (NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
30 				      NETIF_MSG_IFUP);
31 
32 static unsigned char dev_addr[6] = {0, 0x55, 0x7b, 0xb5, 0x7d, 0xf7};
33 
34 static void xlgmac_read_mac_addr(struct xlgmac_pdata *pdata)
35 {
36 	struct net_device *netdev = pdata->netdev;
37 
38 	/* Currently it uses a static mac address for test */
39 	memcpy(pdata->mac_addr, dev_addr, netdev->addr_len);
40 }
41 
42 static void xlgmac_default_config(struct xlgmac_pdata *pdata)
43 {
44 	pdata->tx_osp_mode = DMA_OSP_ENABLE;
45 	pdata->tx_sf_mode = MTL_TSF_ENABLE;
46 	pdata->rx_sf_mode = MTL_RSF_DISABLE;
47 	pdata->pblx8 = DMA_PBL_X8_ENABLE;
48 	pdata->tx_pbl = DMA_PBL_32;
49 	pdata->rx_pbl = DMA_PBL_32;
50 	pdata->tx_threshold = MTL_TX_THRESHOLD_128;
51 	pdata->rx_threshold = MTL_RX_THRESHOLD_128;
52 	pdata->tx_pause = 1;
53 	pdata->rx_pause = 1;
54 	pdata->phy_speed = SPEED_25000;
55 	pdata->sysclk_rate = XLGMAC_SYSCLOCK;
56 
57 	strlcpy(pdata->drv_name, XLGMAC_DRV_NAME, sizeof(pdata->drv_name));
58 	strlcpy(pdata->drv_ver, XLGMAC_DRV_VERSION, sizeof(pdata->drv_ver));
59 }
60 
61 static void xlgmac_init_all_ops(struct xlgmac_pdata *pdata)
62 {
63 	xlgmac_init_desc_ops(&pdata->desc_ops);
64 	xlgmac_init_hw_ops(&pdata->hw_ops);
65 }
66 
67 static int xlgmac_init(struct xlgmac_pdata *pdata)
68 {
69 	struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
70 	struct net_device *netdev = pdata->netdev;
71 	unsigned int i;
72 	int ret;
73 
74 	/* Set default configuration data */
75 	xlgmac_default_config(pdata);
76 
77 	/* Set irq, base_addr, MAC address, */
78 	netdev->irq = pdata->dev_irq;
79 	netdev->base_addr = (unsigned long)pdata->mac_regs;
80 	xlgmac_read_mac_addr(pdata);
81 	eth_hw_addr_set(netdev, pdata->mac_addr);
82 
83 	/* Set all the function pointers */
84 	xlgmac_init_all_ops(pdata);
85 
86 	/* Issue software reset to device */
87 	hw_ops->exit(pdata);
88 
89 	/* Populate the hardware features */
90 	xlgmac_get_all_hw_features(pdata);
91 	xlgmac_print_all_hw_features(pdata);
92 
93 	/* TODO: Set the PHY mode to XLGMII */
94 
95 	/* Set the DMA mask */
96 	ret = dma_set_mask_and_coherent(pdata->dev,
97 					DMA_BIT_MASK(pdata->hw_feat.dma_width));
98 	if (ret) {
99 		dev_err(pdata->dev, "dma_set_mask_and_coherent failed\n");
100 		return ret;
101 	}
102 
103 	/* Channel and ring params initializtion
104 	 *  pdata->channel_count;
105 	 *  pdata->tx_ring_count;
106 	 *  pdata->rx_ring_count;
107 	 *  pdata->tx_desc_count;
108 	 *  pdata->rx_desc_count;
109 	 */
110 	BUILD_BUG_ON_NOT_POWER_OF_2(XLGMAC_TX_DESC_CNT);
111 	pdata->tx_desc_count = XLGMAC_TX_DESC_CNT;
112 	if (pdata->tx_desc_count & (pdata->tx_desc_count - 1)) {
113 		dev_err(pdata->dev, "tx descriptor count (%d) is not valid\n",
114 			pdata->tx_desc_count);
115 		ret = -EINVAL;
116 		return ret;
117 	}
118 	BUILD_BUG_ON_NOT_POWER_OF_2(XLGMAC_RX_DESC_CNT);
119 	pdata->rx_desc_count = XLGMAC_RX_DESC_CNT;
120 	if (pdata->rx_desc_count & (pdata->rx_desc_count - 1)) {
121 		dev_err(pdata->dev, "rx descriptor count (%d) is not valid\n",
122 			pdata->rx_desc_count);
123 		ret = -EINVAL;
124 		return ret;
125 	}
126 
127 	pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
128 				     pdata->hw_feat.tx_ch_cnt);
129 	pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count,
130 				     pdata->hw_feat.tx_q_cnt);
131 	pdata->tx_q_count = pdata->tx_ring_count;
132 	ret = netif_set_real_num_tx_queues(netdev, pdata->tx_q_count);
133 	if (ret) {
134 		dev_err(pdata->dev, "error setting real tx queue count\n");
135 		return ret;
136 	}
137 
138 	pdata->rx_ring_count = min_t(unsigned int,
139 				     netif_get_num_default_rss_queues(),
140 				     pdata->hw_feat.rx_ch_cnt);
141 	pdata->rx_ring_count = min_t(unsigned int, pdata->rx_ring_count,
142 				     pdata->hw_feat.rx_q_cnt);
143 	pdata->rx_q_count = pdata->rx_ring_count;
144 	ret = netif_set_real_num_rx_queues(netdev, pdata->rx_q_count);
145 	if (ret) {
146 		dev_err(pdata->dev, "error setting real rx queue count\n");
147 		return ret;
148 	}
149 
150 	pdata->channel_count =
151 		max_t(unsigned int, pdata->tx_ring_count, pdata->rx_ring_count);
152 
153 	/* Initialize RSS hash key and lookup table */
154 	netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key));
155 
156 	for (i = 0; i < XLGMAC_RSS_MAX_TABLE_SIZE; i++)
157 		pdata->rss_table[i] = XLGMAC_SET_REG_BITS(
158 					pdata->rss_table[i],
159 					MAC_RSSDR_DMCH_POS,
160 					MAC_RSSDR_DMCH_LEN,
161 					i % pdata->rx_ring_count);
162 
163 	pdata->rss_options = XLGMAC_SET_REG_BITS(
164 				pdata->rss_options,
165 				MAC_RSSCR_IP2TE_POS,
166 				MAC_RSSCR_IP2TE_LEN, 1);
167 	pdata->rss_options = XLGMAC_SET_REG_BITS(
168 				pdata->rss_options,
169 				MAC_RSSCR_TCP4TE_POS,
170 				MAC_RSSCR_TCP4TE_LEN, 1);
171 	pdata->rss_options = XLGMAC_SET_REG_BITS(
172 				pdata->rss_options,
173 				MAC_RSSCR_UDP4TE_POS,
174 				MAC_RSSCR_UDP4TE_LEN, 1);
175 
176 	/* Set device operations */
177 	netdev->netdev_ops = xlgmac_get_netdev_ops();
178 	netdev->ethtool_ops = xlgmac_get_ethtool_ops();
179 
180 	/* Set device features */
181 	if (pdata->hw_feat.tso) {
182 		netdev->hw_features = NETIF_F_TSO;
183 		netdev->hw_features |= NETIF_F_TSO6;
184 		netdev->hw_features |= NETIF_F_SG;
185 		netdev->hw_features |= NETIF_F_IP_CSUM;
186 		netdev->hw_features |= NETIF_F_IPV6_CSUM;
187 	} else if (pdata->hw_feat.tx_coe) {
188 		netdev->hw_features = NETIF_F_IP_CSUM;
189 		netdev->hw_features |= NETIF_F_IPV6_CSUM;
190 	}
191 
192 	if (pdata->hw_feat.rx_coe) {
193 		netdev->hw_features |= NETIF_F_RXCSUM;
194 		netdev->hw_features |= NETIF_F_GRO;
195 	}
196 
197 	if (pdata->hw_feat.rss)
198 		netdev->hw_features |= NETIF_F_RXHASH;
199 
200 	netdev->vlan_features |= netdev->hw_features;
201 
202 	netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
203 	if (pdata->hw_feat.sa_vlan_ins)
204 		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
205 	if (pdata->hw_feat.vlhash)
206 		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
207 
208 	netdev->features |= netdev->hw_features;
209 	pdata->netdev_features = netdev->features;
210 
211 	netdev->priv_flags |= IFF_UNICAST_FLT;
212 
213 	/* Use default watchdog timeout */
214 	netdev->watchdog_timeo = 0;
215 
216 	/* Tx coalesce parameters initialization */
217 	pdata->tx_usecs = XLGMAC_INIT_DMA_TX_USECS;
218 	pdata->tx_frames = XLGMAC_INIT_DMA_TX_FRAMES;
219 
220 	/* Rx coalesce parameters initialization */
221 	pdata->rx_riwt = hw_ops->usec_to_riwt(pdata, XLGMAC_INIT_DMA_RX_USECS);
222 	pdata->rx_usecs = XLGMAC_INIT_DMA_RX_USECS;
223 	pdata->rx_frames = XLGMAC_INIT_DMA_RX_FRAMES;
224 
225 	return 0;
226 }
227 
228 int xlgmac_drv_probe(struct device *dev, struct xlgmac_resources *res)
229 {
230 	struct xlgmac_pdata *pdata;
231 	struct net_device *netdev;
232 	int ret;
233 
234 	netdev = alloc_etherdev_mq(sizeof(struct xlgmac_pdata),
235 				   XLGMAC_MAX_DMA_CHANNELS);
236 
237 	if (!netdev) {
238 		dev_err(dev, "alloc_etherdev failed\n");
239 		return -ENOMEM;
240 	}
241 
242 	SET_NETDEV_DEV(netdev, dev);
243 	dev_set_drvdata(dev, netdev);
244 	pdata = netdev_priv(netdev);
245 	pdata->dev = dev;
246 	pdata->netdev = netdev;
247 
248 	pdata->dev_irq = res->irq;
249 	pdata->mac_regs = res->addr;
250 
251 	mutex_init(&pdata->rss_mutex);
252 	pdata->msg_enable = netif_msg_init(debug, default_msg_level);
253 
254 	ret = xlgmac_init(pdata);
255 	if (ret) {
256 		dev_err(dev, "xlgmac init failed\n");
257 		goto err_free_netdev;
258 	}
259 
260 	ret = register_netdev(netdev);
261 	if (ret) {
262 		dev_err(dev, "net device registration failed\n");
263 		goto err_free_netdev;
264 	}
265 
266 	return 0;
267 
268 err_free_netdev:
269 	free_netdev(netdev);
270 
271 	return ret;
272 }
273 
274 int xlgmac_drv_remove(struct device *dev)
275 {
276 	struct net_device *netdev = dev_get_drvdata(dev);
277 
278 	unregister_netdev(netdev);
279 	free_netdev(netdev);
280 
281 	return 0;
282 }
283 
284 void xlgmac_dump_tx_desc(struct xlgmac_pdata *pdata,
285 			 struct xlgmac_ring *ring,
286 			 unsigned int idx,
287 			 unsigned int count,
288 			 unsigned int flag)
289 {
290 	struct xlgmac_desc_data *desc_data;
291 	struct xlgmac_dma_desc *dma_desc;
292 
293 	while (count--) {
294 		desc_data = XLGMAC_GET_DESC_DATA(ring, idx);
295 		dma_desc = desc_data->dma_desc;
296 
297 		netdev_dbg(pdata->netdev, "TX: dma_desc=%p, dma_desc_addr=%pad\n",
298 			   desc_data->dma_desc, &desc_data->dma_desc_addr);
299 		netdev_dbg(pdata->netdev,
300 			   "TX_NORMAL_DESC[%d %s] = %08x:%08x:%08x:%08x\n", idx,
301 			   (flag == 1) ? "QUEUED FOR TX" : "TX BY DEVICE",
302 			   le32_to_cpu(dma_desc->desc0),
303 			   le32_to_cpu(dma_desc->desc1),
304 			   le32_to_cpu(dma_desc->desc2),
305 			   le32_to_cpu(dma_desc->desc3));
306 
307 		idx++;
308 	}
309 }
310 
311 void xlgmac_dump_rx_desc(struct xlgmac_pdata *pdata,
312 			 struct xlgmac_ring *ring,
313 			 unsigned int idx)
314 {
315 	struct xlgmac_desc_data *desc_data;
316 	struct xlgmac_dma_desc *dma_desc;
317 
318 	desc_data = XLGMAC_GET_DESC_DATA(ring, idx);
319 	dma_desc = desc_data->dma_desc;
320 
321 	netdev_dbg(pdata->netdev, "RX: dma_desc=%p, dma_desc_addr=%pad\n",
322 		   desc_data->dma_desc, &desc_data->dma_desc_addr);
323 	netdev_dbg(pdata->netdev,
324 		   "RX_NORMAL_DESC[%d RX BY DEVICE] = %08x:%08x:%08x:%08x\n",
325 		   idx,
326 		   le32_to_cpu(dma_desc->desc0),
327 		   le32_to_cpu(dma_desc->desc1),
328 		   le32_to_cpu(dma_desc->desc2),
329 		   le32_to_cpu(dma_desc->desc3));
330 }
331 
332 void xlgmac_print_pkt(struct net_device *netdev,
333 		      struct sk_buff *skb, bool tx_rx)
334 {
335 	struct ethhdr *eth = (struct ethhdr *)skb->data;
336 	unsigned char buffer[128];
337 	unsigned int i;
338 
339 	netdev_dbg(netdev, "\n************** SKB dump ****************\n");
340 
341 	netdev_dbg(netdev, "%s packet of %d bytes\n",
342 		   (tx_rx ? "TX" : "RX"), skb->len);
343 
344 	netdev_dbg(netdev, "Dst MAC addr: %pM\n", eth->h_dest);
345 	netdev_dbg(netdev, "Src MAC addr: %pM\n", eth->h_source);
346 	netdev_dbg(netdev, "Protocol: %#06hx\n", ntohs(eth->h_proto));
347 
348 	for (i = 0; i < skb->len; i += 32) {
349 		unsigned int len = min(skb->len - i, 32U);
350 
351 		hex_dump_to_buffer(&skb->data[i], len, 32, 1,
352 				   buffer, sizeof(buffer), false);
353 		netdev_dbg(netdev, "  %#06x: %s\n", i, buffer);
354 	}
355 
356 	netdev_dbg(netdev, "\n************** SKB dump ****************\n");
357 }
358 
359 void xlgmac_get_all_hw_features(struct xlgmac_pdata *pdata)
360 {
361 	struct xlgmac_hw_features *hw_feat = &pdata->hw_feat;
362 	unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
363 
364 	mac_hfr0 = readl(pdata->mac_regs + MAC_HWF0R);
365 	mac_hfr1 = readl(pdata->mac_regs + MAC_HWF1R);
366 	mac_hfr2 = readl(pdata->mac_regs + MAC_HWF2R);
367 
368 	memset(hw_feat, 0, sizeof(*hw_feat));
369 
370 	hw_feat->version = readl(pdata->mac_regs + MAC_VR);
371 
372 	/* Hardware feature register 0 */
373 	hw_feat->phyifsel    = XLGMAC_GET_REG_BITS(mac_hfr0,
374 						MAC_HWF0R_PHYIFSEL_POS,
375 						MAC_HWF0R_PHYIFSEL_LEN);
376 	hw_feat->vlhash      = XLGMAC_GET_REG_BITS(mac_hfr0,
377 						MAC_HWF0R_VLHASH_POS,
378 						MAC_HWF0R_VLHASH_LEN);
379 	hw_feat->sma         = XLGMAC_GET_REG_BITS(mac_hfr0,
380 						MAC_HWF0R_SMASEL_POS,
381 						MAC_HWF0R_SMASEL_LEN);
382 	hw_feat->rwk         = XLGMAC_GET_REG_BITS(mac_hfr0,
383 						MAC_HWF0R_RWKSEL_POS,
384 						MAC_HWF0R_RWKSEL_LEN);
385 	hw_feat->mgk         = XLGMAC_GET_REG_BITS(mac_hfr0,
386 						MAC_HWF0R_MGKSEL_POS,
387 						MAC_HWF0R_MGKSEL_LEN);
388 	hw_feat->mmc         = XLGMAC_GET_REG_BITS(mac_hfr0,
389 						MAC_HWF0R_MMCSEL_POS,
390 						MAC_HWF0R_MMCSEL_LEN);
391 	hw_feat->aoe         = XLGMAC_GET_REG_BITS(mac_hfr0,
392 						MAC_HWF0R_ARPOFFSEL_POS,
393 						MAC_HWF0R_ARPOFFSEL_LEN);
394 	hw_feat->ts          = XLGMAC_GET_REG_BITS(mac_hfr0,
395 						MAC_HWF0R_TSSEL_POS,
396 						MAC_HWF0R_TSSEL_LEN);
397 	hw_feat->eee         = XLGMAC_GET_REG_BITS(mac_hfr0,
398 						MAC_HWF0R_EEESEL_POS,
399 						MAC_HWF0R_EEESEL_LEN);
400 	hw_feat->tx_coe      = XLGMAC_GET_REG_BITS(mac_hfr0,
401 						MAC_HWF0R_TXCOESEL_POS,
402 						MAC_HWF0R_TXCOESEL_LEN);
403 	hw_feat->rx_coe      = XLGMAC_GET_REG_BITS(mac_hfr0,
404 						MAC_HWF0R_RXCOESEL_POS,
405 						MAC_HWF0R_RXCOESEL_LEN);
406 	hw_feat->addn_mac    = XLGMAC_GET_REG_BITS(mac_hfr0,
407 						MAC_HWF0R_ADDMACADRSEL_POS,
408 						MAC_HWF0R_ADDMACADRSEL_LEN);
409 	hw_feat->ts_src      = XLGMAC_GET_REG_BITS(mac_hfr0,
410 						MAC_HWF0R_TSSTSSEL_POS,
411 						MAC_HWF0R_TSSTSSEL_LEN);
412 	hw_feat->sa_vlan_ins = XLGMAC_GET_REG_BITS(mac_hfr0,
413 						MAC_HWF0R_SAVLANINS_POS,
414 						MAC_HWF0R_SAVLANINS_LEN);
415 
416 	/* Hardware feature register 1 */
417 	hw_feat->rx_fifo_size  = XLGMAC_GET_REG_BITS(mac_hfr1,
418 						MAC_HWF1R_RXFIFOSIZE_POS,
419 						MAC_HWF1R_RXFIFOSIZE_LEN);
420 	hw_feat->tx_fifo_size  = XLGMAC_GET_REG_BITS(mac_hfr1,
421 						MAC_HWF1R_TXFIFOSIZE_POS,
422 						MAC_HWF1R_TXFIFOSIZE_LEN);
423 	hw_feat->adv_ts_hi     = XLGMAC_GET_REG_BITS(mac_hfr1,
424 						MAC_HWF1R_ADVTHWORD_POS,
425 						MAC_HWF1R_ADVTHWORD_LEN);
426 	hw_feat->dma_width     = XLGMAC_GET_REG_BITS(mac_hfr1,
427 						MAC_HWF1R_ADDR64_POS,
428 						MAC_HWF1R_ADDR64_LEN);
429 	hw_feat->dcb           = XLGMAC_GET_REG_BITS(mac_hfr1,
430 						MAC_HWF1R_DCBEN_POS,
431 						MAC_HWF1R_DCBEN_LEN);
432 	hw_feat->sph           = XLGMAC_GET_REG_BITS(mac_hfr1,
433 						MAC_HWF1R_SPHEN_POS,
434 						MAC_HWF1R_SPHEN_LEN);
435 	hw_feat->tso           = XLGMAC_GET_REG_BITS(mac_hfr1,
436 						MAC_HWF1R_TSOEN_POS,
437 						MAC_HWF1R_TSOEN_LEN);
438 	hw_feat->dma_debug     = XLGMAC_GET_REG_BITS(mac_hfr1,
439 						MAC_HWF1R_DBGMEMA_POS,
440 						MAC_HWF1R_DBGMEMA_LEN);
441 	hw_feat->rss           = XLGMAC_GET_REG_BITS(mac_hfr1,
442 						MAC_HWF1R_RSSEN_POS,
443 						MAC_HWF1R_RSSEN_LEN);
444 	hw_feat->tc_cnt	       = XLGMAC_GET_REG_BITS(mac_hfr1,
445 						MAC_HWF1R_NUMTC_POS,
446 						MAC_HWF1R_NUMTC_LEN);
447 	hw_feat->hash_table_size = XLGMAC_GET_REG_BITS(mac_hfr1,
448 						MAC_HWF1R_HASHTBLSZ_POS,
449 						MAC_HWF1R_HASHTBLSZ_LEN);
450 	hw_feat->l3l4_filter_num = XLGMAC_GET_REG_BITS(mac_hfr1,
451 						MAC_HWF1R_L3L4FNUM_POS,
452 						MAC_HWF1R_L3L4FNUM_LEN);
453 
454 	/* Hardware feature register 2 */
455 	hw_feat->rx_q_cnt     = XLGMAC_GET_REG_BITS(mac_hfr2,
456 						MAC_HWF2R_RXQCNT_POS,
457 						MAC_HWF2R_RXQCNT_LEN);
458 	hw_feat->tx_q_cnt     = XLGMAC_GET_REG_BITS(mac_hfr2,
459 						MAC_HWF2R_TXQCNT_POS,
460 						MAC_HWF2R_TXQCNT_LEN);
461 	hw_feat->rx_ch_cnt    = XLGMAC_GET_REG_BITS(mac_hfr2,
462 						MAC_HWF2R_RXCHCNT_POS,
463 						MAC_HWF2R_RXCHCNT_LEN);
464 	hw_feat->tx_ch_cnt    = XLGMAC_GET_REG_BITS(mac_hfr2,
465 						MAC_HWF2R_TXCHCNT_POS,
466 						MAC_HWF2R_TXCHCNT_LEN);
467 	hw_feat->pps_out_num  = XLGMAC_GET_REG_BITS(mac_hfr2,
468 						MAC_HWF2R_PPSOUTNUM_POS,
469 						MAC_HWF2R_PPSOUTNUM_LEN);
470 	hw_feat->aux_snap_num = XLGMAC_GET_REG_BITS(mac_hfr2,
471 						MAC_HWF2R_AUXSNAPNUM_POS,
472 						MAC_HWF2R_AUXSNAPNUM_LEN);
473 
474 	/* Translate the Hash Table size into actual number */
475 	switch (hw_feat->hash_table_size) {
476 	case 0:
477 		break;
478 	case 1:
479 		hw_feat->hash_table_size = 64;
480 		break;
481 	case 2:
482 		hw_feat->hash_table_size = 128;
483 		break;
484 	case 3:
485 		hw_feat->hash_table_size = 256;
486 		break;
487 	}
488 
489 	/* Translate the address width setting into actual number */
490 	switch (hw_feat->dma_width) {
491 	case 0:
492 		hw_feat->dma_width = 32;
493 		break;
494 	case 1:
495 		hw_feat->dma_width = 40;
496 		break;
497 	case 2:
498 		hw_feat->dma_width = 48;
499 		break;
500 	default:
501 		hw_feat->dma_width = 32;
502 	}
503 
504 	/* The Queue, Channel and TC counts are zero based so increment them
505 	 * to get the actual number
506 	 */
507 	hw_feat->rx_q_cnt++;
508 	hw_feat->tx_q_cnt++;
509 	hw_feat->rx_ch_cnt++;
510 	hw_feat->tx_ch_cnt++;
511 	hw_feat->tc_cnt++;
512 }
513 
514 void xlgmac_print_all_hw_features(struct xlgmac_pdata *pdata)
515 {
516 	char __maybe_unused *str = NULL;
517 
518 	XLGMAC_PR("\n");
519 	XLGMAC_PR("=====================================================\n");
520 	XLGMAC_PR("\n");
521 	XLGMAC_PR("HW support following features\n");
522 	XLGMAC_PR("\n");
523 	/* HW Feature Register0 */
524 	XLGMAC_PR("VLAN Hash Filter Selected                   : %s\n",
525 		  pdata->hw_feat.vlhash ? "YES" : "NO");
526 	XLGMAC_PR("SMA (MDIO) Interface                        : %s\n",
527 		  pdata->hw_feat.sma ? "YES" : "NO");
528 	XLGMAC_PR("PMT Remote Wake-up Packet Enable            : %s\n",
529 		  pdata->hw_feat.rwk ? "YES" : "NO");
530 	XLGMAC_PR("PMT Magic Packet Enable                     : %s\n",
531 		  pdata->hw_feat.mgk ? "YES" : "NO");
532 	XLGMAC_PR("RMON/MMC Module Enable                      : %s\n",
533 		  pdata->hw_feat.mmc ? "YES" : "NO");
534 	XLGMAC_PR("ARP Offload Enabled                         : %s\n",
535 		  pdata->hw_feat.aoe ? "YES" : "NO");
536 	XLGMAC_PR("IEEE 1588-2008 Timestamp Enabled            : %s\n",
537 		  pdata->hw_feat.ts ? "YES" : "NO");
538 	XLGMAC_PR("Energy Efficient Ethernet Enabled           : %s\n",
539 		  pdata->hw_feat.eee ? "YES" : "NO");
540 	XLGMAC_PR("Transmit Checksum Offload Enabled           : %s\n",
541 		  pdata->hw_feat.tx_coe ? "YES" : "NO");
542 	XLGMAC_PR("Receive Checksum Offload Enabled            : %s\n",
543 		  pdata->hw_feat.rx_coe ? "YES" : "NO");
544 	XLGMAC_PR("Additional MAC Addresses 1-31 Selected      : %s\n",
545 		  pdata->hw_feat.addn_mac ? "YES" : "NO");
546 
547 	switch (pdata->hw_feat.ts_src) {
548 	case 0:
549 		str = "RESERVED";
550 		break;
551 	case 1:
552 		str = "INTERNAL";
553 		break;
554 	case 2:
555 		str = "EXTERNAL";
556 		break;
557 	case 3:
558 		str = "BOTH";
559 		break;
560 	}
561 	XLGMAC_PR("Timestamp System Time Source                : %s\n", str);
562 
563 	XLGMAC_PR("Source Address or VLAN Insertion Enable     : %s\n",
564 		  pdata->hw_feat.sa_vlan_ins ? "YES" : "NO");
565 
566 	/* HW Feature Register1 */
567 	switch (pdata->hw_feat.rx_fifo_size) {
568 	case 0:
569 		str = "128 bytes";
570 		break;
571 	case 1:
572 		str = "256 bytes";
573 		break;
574 	case 2:
575 		str = "512 bytes";
576 		break;
577 	case 3:
578 		str = "1 KBytes";
579 		break;
580 	case 4:
581 		str = "2 KBytes";
582 		break;
583 	case 5:
584 		str = "4 KBytes";
585 		break;
586 	case 6:
587 		str = "8 KBytes";
588 		break;
589 	case 7:
590 		str = "16 KBytes";
591 		break;
592 	case 8:
593 		str = "32 kBytes";
594 		break;
595 	case 9:
596 		str = "64 KBytes";
597 		break;
598 	case 10:
599 		str = "128 KBytes";
600 		break;
601 	case 11:
602 		str = "256 KBytes";
603 		break;
604 	default:
605 		str = "RESERVED";
606 	}
607 	XLGMAC_PR("MTL Receive FIFO Size                       : %s\n", str);
608 
609 	switch (pdata->hw_feat.tx_fifo_size) {
610 	case 0:
611 		str = "128 bytes";
612 		break;
613 	case 1:
614 		str = "256 bytes";
615 		break;
616 	case 2:
617 		str = "512 bytes";
618 		break;
619 	case 3:
620 		str = "1 KBytes";
621 		break;
622 	case 4:
623 		str = "2 KBytes";
624 		break;
625 	case 5:
626 		str = "4 KBytes";
627 		break;
628 	case 6:
629 		str = "8 KBytes";
630 		break;
631 	case 7:
632 		str = "16 KBytes";
633 		break;
634 	case 8:
635 		str = "32 kBytes";
636 		break;
637 	case 9:
638 		str = "64 KBytes";
639 		break;
640 	case 10:
641 		str = "128 KBytes";
642 		break;
643 	case 11:
644 		str = "256 KBytes";
645 		break;
646 	default:
647 		str = "RESERVED";
648 	}
649 	XLGMAC_PR("MTL Transmit FIFO Size                      : %s\n", str);
650 
651 	XLGMAC_PR("IEEE 1588 High Word Register Enable         : %s\n",
652 		  pdata->hw_feat.adv_ts_hi ? "YES" : "NO");
653 	XLGMAC_PR("Address width                               : %u\n",
654 		  pdata->hw_feat.dma_width);
655 	XLGMAC_PR("DCB Feature Enable                          : %s\n",
656 		  pdata->hw_feat.dcb ? "YES" : "NO");
657 	XLGMAC_PR("Split Header Feature Enable                 : %s\n",
658 		  pdata->hw_feat.sph ? "YES" : "NO");
659 	XLGMAC_PR("TCP Segmentation Offload Enable             : %s\n",
660 		  pdata->hw_feat.tso ? "YES" : "NO");
661 	XLGMAC_PR("DMA Debug Registers Enabled                 : %s\n",
662 		  pdata->hw_feat.dma_debug ? "YES" : "NO");
663 	XLGMAC_PR("RSS Feature Enabled                         : %s\n",
664 		  pdata->hw_feat.rss ? "YES" : "NO");
665 	XLGMAC_PR("Number of Traffic classes                   : %u\n",
666 		  (pdata->hw_feat.tc_cnt));
667 	XLGMAC_PR("Hash Table Size                             : %u\n",
668 		  pdata->hw_feat.hash_table_size);
669 	XLGMAC_PR("Total number of L3 or L4 Filters            : %u\n",
670 		  pdata->hw_feat.l3l4_filter_num);
671 
672 	/* HW Feature Register2 */
673 	XLGMAC_PR("Number of MTL Receive Queues                : %u\n",
674 		  pdata->hw_feat.rx_q_cnt);
675 	XLGMAC_PR("Number of MTL Transmit Queues               : %u\n",
676 		  pdata->hw_feat.tx_q_cnt);
677 	XLGMAC_PR("Number of DMA Receive Channels              : %u\n",
678 		  pdata->hw_feat.rx_ch_cnt);
679 	XLGMAC_PR("Number of DMA Transmit Channels             : %u\n",
680 		  pdata->hw_feat.tx_ch_cnt);
681 
682 	switch (pdata->hw_feat.pps_out_num) {
683 	case 0:
684 		str = "No PPS output";
685 		break;
686 	case 1:
687 		str = "1 PPS output";
688 		break;
689 	case 2:
690 		str = "2 PPS output";
691 		break;
692 	case 3:
693 		str = "3 PPS output";
694 		break;
695 	case 4:
696 		str = "4 PPS output";
697 		break;
698 	default:
699 		str = "RESERVED";
700 	}
701 	XLGMAC_PR("Number of PPS Outputs                       : %s\n", str);
702 
703 	switch (pdata->hw_feat.aux_snap_num) {
704 	case 0:
705 		str = "No auxiliary input";
706 		break;
707 	case 1:
708 		str = "1 auxiliary input";
709 		break;
710 	case 2:
711 		str = "2 auxiliary input";
712 		break;
713 	case 3:
714 		str = "3 auxiliary input";
715 		break;
716 	case 4:
717 		str = "4 auxiliary input";
718 		break;
719 	default:
720 		str = "RESERVED";
721 	}
722 	XLGMAC_PR("Number of Auxiliary Snapshot Inputs         : %s", str);
723 
724 	XLGMAC_PR("\n");
725 	XLGMAC_PR("=====================================================\n");
726 	XLGMAC_PR("\n");
727 }
728