1 /*
2  * AMD 10Gb Ethernet driver
3  *
4  * This file is available to you under your choice of the following two
5  * licenses:
6  *
7  * License 1: GPLv2
8  *
9  * Copyright (c) 2016 Advanced Micro Devices, Inc.
10  *
11  * This file is free software; you may copy, redistribute and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation, either version 2 of the License, or (at
14  * your option) any later version.
15  *
16  * This file is distributed in the hope that it will be useful, but
17  * WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23  *
24  * This file incorporates work covered by the following copyright and
25  * permission notice:
26  *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
27  *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
28  *     Inc. unless otherwise expressly agreed to in writing between Synopsys
29  *     and you.
30  *
31  *     The Software IS NOT an item of Licensed Software or Licensed Product
32  *     under any End User Software License Agreement or Agreement for Licensed
33  *     Product with Synopsys or any supplement thereto.  Permission is hereby
34  *     granted, free of charge, to any person obtaining a copy of this software
35  *     annotated with this license and the Software, to deal in the Software
36  *     without restriction, including without limitation the rights to use,
37  *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
38  *     of the Software, and to permit persons to whom the Software is furnished
39  *     to do so, subject to the following conditions:
40  *
41  *     The above copyright notice and this permission notice shall be included
42  *     in all copies or substantial portions of the Software.
43  *
44  *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
45  *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
46  *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
47  *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
48  *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
49  *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
50  *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
51  *     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
52  *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53  *     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
54  *     THE POSSIBILITY OF SUCH DAMAGE.
55  *
56  *
57  * License 2: Modified BSD
58  *
59  * Copyright (c) 2016 Advanced Micro Devices, Inc.
60  * All rights reserved.
61  *
62  * Redistribution and use in source and binary forms, with or without
63  * modification, are permitted provided that the following conditions are met:
64  *     * Redistributions of source code must retain the above copyright
65  *       notice, this list of conditions and the following disclaimer.
66  *     * Redistributions in binary form must reproduce the above copyright
67  *       notice, this list of conditions and the following disclaimer in the
68  *       documentation and/or other materials provided with the distribution.
69  *     * Neither the name of Advanced Micro Devices, Inc. nor the
70  *       names of its contributors may be used to endorse or promote products
71  *       derived from this software without specific prior written permission.
72  *
73  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
74  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
75  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
76  * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
77  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
78  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
79  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
80  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
81  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
82  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
83  *
84  * This file incorporates work covered by the following copyright and
85  * permission notice:
86  *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
87  *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
88  *     Inc. unless otherwise expressly agreed to in writing between Synopsys
89  *     and you.
90  *
91  *     The Software IS NOT an item of Licensed Software or Licensed Product
92  *     under any End User Software License Agreement or Agreement for Licensed
93  *     Product with Synopsys or any supplement thereto.  Permission is hereby
94  *     granted, free of charge, to any person obtaining a copy of this software
95  *     annotated with this license and the Software, to deal in the Software
96  *     without restriction, including without limitation the rights to use,
97  *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
98  *     of the Software, and to permit persons to whom the Software is furnished
99  *     to do so, subject to the following conditions:
100  *
101  *     The above copyright notice and this permission notice shall be included
102  *     in all copies or substantial portions of the Software.
103  *
104  *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
105  *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
106  *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
107  *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
108  *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
109  *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
110  *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
111  *     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
112  *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
113  *     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
114  *     THE POSSIBILITY OF SUCH DAMAGE.
115  */
116 
117 #include <linux/module.h>
118 #include <linux/device.h>
119 #include <linux/pci.h>
120 #include <linux/log2.h>
121 
122 #include "xgbe.h"
123 #include "xgbe-common.h"
124 
125 static int xgbe_config_multi_msi(struct xgbe_prv_data *pdata)
126 {
127 	unsigned int vector_count;
128 	unsigned int i, j;
129 	int ret;
130 
131 	vector_count = XGBE_MSI_BASE_COUNT;
132 	vector_count += max(pdata->rx_ring_count,
133 			    pdata->tx_ring_count);
134 
135 	ret = pci_alloc_irq_vectors(pdata->pcidev, XGBE_MSI_MIN_COUNT,
136 				    vector_count, PCI_IRQ_MSI | PCI_IRQ_MSIX);
137 	if (ret < 0) {
138 		dev_info(pdata->dev, "multi MSI/MSI-X enablement failed\n");
139 		return ret;
140 	}
141 
142 	pdata->isr_as_tasklet = 1;
143 	pdata->irq_count = ret;
144 
145 	pdata->dev_irq = pci_irq_vector(pdata->pcidev, 0);
146 	pdata->ecc_irq = pci_irq_vector(pdata->pcidev, 1);
147 	pdata->i2c_irq = pci_irq_vector(pdata->pcidev, 2);
148 	pdata->an_irq = pci_irq_vector(pdata->pcidev, 3);
149 
150 	for (i = XGBE_MSI_BASE_COUNT, j = 0; i < ret; i++, j++)
151 		pdata->channel_irq[j] = pci_irq_vector(pdata->pcidev, i);
152 	pdata->channel_irq_count = j;
153 
154 	pdata->per_channel_irq = 1;
155 	pdata->channel_irq_mode = XGBE_IRQ_MODE_LEVEL;
156 
157 	if (netif_msg_probe(pdata))
158 		dev_dbg(pdata->dev, "multi %s interrupts enabled\n",
159 			pdata->pcidev->msix_enabled ? "MSI-X" : "MSI");
160 
161 	return 0;
162 }
163 
164 static int xgbe_config_irqs(struct xgbe_prv_data *pdata)
165 {
166 	int ret;
167 
168 	ret = xgbe_config_multi_msi(pdata);
169 	if (!ret)
170 		goto out;
171 
172 	ret = pci_alloc_irq_vectors(pdata->pcidev, 1, 1,
173 				    PCI_IRQ_LEGACY | PCI_IRQ_MSI);
174 	if (ret < 0) {
175 		dev_info(pdata->dev, "single IRQ enablement failed\n");
176 		return ret;
177 	}
178 
179 	pdata->isr_as_tasklet = pdata->pcidev->msi_enabled ? 1 : 0;
180 	pdata->irq_count = 1;
181 	pdata->channel_irq_count = 1;
182 
183 	pdata->dev_irq = pci_irq_vector(pdata->pcidev, 0);
184 	pdata->ecc_irq = pci_irq_vector(pdata->pcidev, 0);
185 	pdata->i2c_irq = pci_irq_vector(pdata->pcidev, 0);
186 	pdata->an_irq = pci_irq_vector(pdata->pcidev, 0);
187 
188 	if (netif_msg_probe(pdata))
189 		dev_dbg(pdata->dev, "single %s interrupt enabled\n",
190 			pdata->pcidev->msi_enabled ?  "MSI" : "legacy");
191 
192 out:
193 	if (netif_msg_probe(pdata)) {
194 		unsigned int i;
195 
196 		dev_dbg(pdata->dev, " dev irq=%d\n", pdata->dev_irq);
197 		dev_dbg(pdata->dev, " ecc irq=%d\n", pdata->ecc_irq);
198 		dev_dbg(pdata->dev, " i2c irq=%d\n", pdata->i2c_irq);
199 		dev_dbg(pdata->dev, "  an irq=%d\n", pdata->an_irq);
200 		for (i = 0; i < pdata->channel_irq_count; i++)
201 			dev_dbg(pdata->dev, " dma%u irq=%d\n",
202 				i, pdata->channel_irq[i]);
203 	}
204 
205 	return 0;
206 }
207 
208 static int xgbe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
209 {
210 	struct xgbe_prv_data *pdata;
211 	struct device *dev = &pdev->dev;
212 	void __iomem * const *iomap_table;
213 	struct pci_dev *rdev;
214 	unsigned int ma_lo, ma_hi;
215 	unsigned int reg;
216 	int bar_mask;
217 	int ret;
218 
219 	pdata = xgbe_alloc_pdata(dev);
220 	if (IS_ERR(pdata)) {
221 		ret = PTR_ERR(pdata);
222 		goto err_alloc;
223 	}
224 
225 	pdata->pcidev = pdev;
226 	pci_set_drvdata(pdev, pdata);
227 
228 	/* Get the version data */
229 	pdata->vdata = (struct xgbe_version_data *)id->driver_data;
230 
231 	ret = pcim_enable_device(pdev);
232 	if (ret) {
233 		dev_err(dev, "pcim_enable_device failed\n");
234 		goto err_pci_enable;
235 	}
236 
237 	/* Obtain the mmio areas for the device */
238 	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
239 	ret = pcim_iomap_regions(pdev, bar_mask, XGBE_DRV_NAME);
240 	if (ret) {
241 		dev_err(dev, "pcim_iomap_regions failed\n");
242 		goto err_pci_enable;
243 	}
244 
245 	iomap_table = pcim_iomap_table(pdev);
246 	if (!iomap_table) {
247 		dev_err(dev, "pcim_iomap_table failed\n");
248 		ret = -ENOMEM;
249 		goto err_pci_enable;
250 	}
251 
252 	pdata->xgmac_regs = iomap_table[XGBE_XGMAC_BAR];
253 	if (!pdata->xgmac_regs) {
254 		dev_err(dev, "xgmac ioremap failed\n");
255 		ret = -ENOMEM;
256 		goto err_pci_enable;
257 	}
258 	pdata->xprop_regs = pdata->xgmac_regs + XGBE_MAC_PROP_OFFSET;
259 	pdata->xi2c_regs = pdata->xgmac_regs + XGBE_I2C_CTRL_OFFSET;
260 	if (netif_msg_probe(pdata)) {
261 		dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs);
262 		dev_dbg(dev, "xprop_regs = %p\n", pdata->xprop_regs);
263 		dev_dbg(dev, "xi2c_regs  = %p\n", pdata->xi2c_regs);
264 	}
265 
266 	pdata->xpcs_regs = iomap_table[XGBE_XPCS_BAR];
267 	if (!pdata->xpcs_regs) {
268 		dev_err(dev, "xpcs ioremap failed\n");
269 		ret = -ENOMEM;
270 		goto err_pci_enable;
271 	}
272 	if (netif_msg_probe(pdata))
273 		dev_dbg(dev, "xpcs_regs  = %p\n", pdata->xpcs_regs);
274 
275 	/* Set the PCS indirect addressing definition registers */
276 	rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
277 	if (rdev &&
278 	    (rdev->vendor == PCI_VENDOR_ID_AMD) && (rdev->device == 0x15d0)) {
279 		pdata->xpcs_window_def_reg = PCS_V2_RV_WINDOW_DEF;
280 		pdata->xpcs_window_sel_reg = PCS_V2_RV_WINDOW_SELECT;
281 	} else if (rdev && (rdev->vendor == PCI_VENDOR_ID_AMD) &&
282 		   (rdev->device == 0x14b5)) {
283 		pdata->xpcs_window_def_reg = PCS_V2_YC_WINDOW_DEF;
284 		pdata->xpcs_window_sel_reg = PCS_V2_YC_WINDOW_SELECT;
285 
286 		/* Yellow Carp devices do not need cdr workaround */
287 		pdata->vdata->an_cdr_workaround = 0;
288 	} else {
289 		pdata->xpcs_window_def_reg = PCS_V2_WINDOW_DEF;
290 		pdata->xpcs_window_sel_reg = PCS_V2_WINDOW_SELECT;
291 	}
292 	pci_dev_put(rdev);
293 
294 	/* Configure the PCS indirect addressing support */
295 	reg = XPCS32_IOREAD(pdata, pdata->xpcs_window_def_reg);
296 	pdata->xpcs_window = XPCS_GET_BITS(reg, PCS_V2_WINDOW_DEF, OFFSET);
297 	pdata->xpcs_window <<= 6;
298 	pdata->xpcs_window_size = XPCS_GET_BITS(reg, PCS_V2_WINDOW_DEF, SIZE);
299 	pdata->xpcs_window_size = 1 << (pdata->xpcs_window_size + 7);
300 	pdata->xpcs_window_mask = pdata->xpcs_window_size - 1;
301 	if (netif_msg_probe(pdata)) {
302 		dev_dbg(dev, "xpcs window def  = %#010x\n",
303 			pdata->xpcs_window_def_reg);
304 		dev_dbg(dev, "xpcs window sel  = %#010x\n",
305 			pdata->xpcs_window_sel_reg);
306 		dev_dbg(dev, "xpcs window      = %#010x\n",
307 			pdata->xpcs_window);
308 		dev_dbg(dev, "xpcs window size = %#010x\n",
309 			pdata->xpcs_window_size);
310 		dev_dbg(dev, "xpcs window mask = %#010x\n",
311 			pdata->xpcs_window_mask);
312 	}
313 
314 	pci_set_master(pdev);
315 
316 	/* Enable all interrupts in the hardware */
317 	XP_IOWRITE(pdata, XP_INT_EN, 0x1fffff);
318 
319 	/* Retrieve the MAC address */
320 	ma_lo = XP_IOREAD(pdata, XP_MAC_ADDR_LO);
321 	ma_hi = XP_IOREAD(pdata, XP_MAC_ADDR_HI);
322 	pdata->mac_addr[0] = ma_lo & 0xff;
323 	pdata->mac_addr[1] = (ma_lo >> 8) & 0xff;
324 	pdata->mac_addr[2] = (ma_lo >> 16) & 0xff;
325 	pdata->mac_addr[3] = (ma_lo >> 24) & 0xff;
326 	pdata->mac_addr[4] = ma_hi & 0xff;
327 	pdata->mac_addr[5] = (ma_hi >> 8) & 0xff;
328 	if (!XP_GET_BITS(ma_hi, XP_MAC_ADDR_HI, VALID) ||
329 	    !is_valid_ether_addr(pdata->mac_addr)) {
330 		dev_err(dev, "invalid mac address\n");
331 		ret = -EINVAL;
332 		goto err_pci_enable;
333 	}
334 
335 	/* Clock settings */
336 	pdata->sysclk_rate = XGBE_V2_DMA_CLOCK_FREQ;
337 	pdata->ptpclk_rate = XGBE_V2_PTP_CLOCK_FREQ;
338 
339 	/* Set the DMA coherency values */
340 	pdata->coherent = 1;
341 	pdata->arcr = XGBE_DMA_PCI_ARCR;
342 	pdata->awcr = XGBE_DMA_PCI_AWCR;
343 	pdata->awarcr = XGBE_DMA_PCI_AWARCR;
344 
345 	/* Read the port property registers */
346 	pdata->pp0 = XP_IOREAD(pdata, XP_PROP_0);
347 	pdata->pp1 = XP_IOREAD(pdata, XP_PROP_1);
348 	pdata->pp2 = XP_IOREAD(pdata, XP_PROP_2);
349 	pdata->pp3 = XP_IOREAD(pdata, XP_PROP_3);
350 	pdata->pp4 = XP_IOREAD(pdata, XP_PROP_4);
351 	if (netif_msg_probe(pdata)) {
352 		dev_dbg(dev, "port property 0 = %#010x\n", pdata->pp0);
353 		dev_dbg(dev, "port property 1 = %#010x\n", pdata->pp1);
354 		dev_dbg(dev, "port property 2 = %#010x\n", pdata->pp2);
355 		dev_dbg(dev, "port property 3 = %#010x\n", pdata->pp3);
356 		dev_dbg(dev, "port property 4 = %#010x\n", pdata->pp4);
357 	}
358 
359 	/* Set the maximum channels and queues */
360 	pdata->tx_max_channel_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
361 						  MAX_TX_DMA);
362 	pdata->rx_max_channel_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
363 						  MAX_RX_DMA);
364 	pdata->tx_max_q_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
365 					    MAX_TX_QUEUES);
366 	pdata->rx_max_q_count = XP_GET_BITS(pdata->pp1, XP_PROP_1,
367 					    MAX_RX_QUEUES);
368 	if (netif_msg_probe(pdata)) {
369 		dev_dbg(dev, "max tx/rx channel count = %u/%u\n",
370 			pdata->tx_max_channel_count,
371 			pdata->rx_max_channel_count);
372 		dev_dbg(dev, "max tx/rx hw queue count = %u/%u\n",
373 			pdata->tx_max_q_count, pdata->rx_max_q_count);
374 	}
375 
376 	/* Set the hardware channel and queue counts */
377 	xgbe_set_counts(pdata);
378 
379 	/* Set the maximum fifo amounts */
380 	pdata->tx_max_fifo_size = XP_GET_BITS(pdata->pp2, XP_PROP_2,
381 					      TX_FIFO_SIZE);
382 	pdata->tx_max_fifo_size *= 16384;
383 	pdata->tx_max_fifo_size = min(pdata->tx_max_fifo_size,
384 				      pdata->vdata->tx_max_fifo_size);
385 	pdata->rx_max_fifo_size = XP_GET_BITS(pdata->pp2, XP_PROP_2,
386 					      RX_FIFO_SIZE);
387 	pdata->rx_max_fifo_size *= 16384;
388 	pdata->rx_max_fifo_size = min(pdata->rx_max_fifo_size,
389 				      pdata->vdata->rx_max_fifo_size);
390 	if (netif_msg_probe(pdata))
391 		dev_dbg(dev, "max tx/rx max fifo size = %u/%u\n",
392 			pdata->tx_max_fifo_size, pdata->rx_max_fifo_size);
393 
394 	/* Configure interrupt support */
395 	ret = xgbe_config_irqs(pdata);
396 	if (ret)
397 		goto err_pci_enable;
398 
399 	/* Configure the netdev resource */
400 	ret = xgbe_config_netdev(pdata);
401 	if (ret)
402 		goto err_irq_vectors;
403 
404 	netdev_notice(pdata->netdev, "net device enabled\n");
405 
406 	return 0;
407 
408 err_irq_vectors:
409 	pci_free_irq_vectors(pdata->pcidev);
410 
411 err_pci_enable:
412 	xgbe_free_pdata(pdata);
413 
414 err_alloc:
415 	dev_notice(dev, "net device not enabled\n");
416 
417 	return ret;
418 }
419 
420 static void xgbe_pci_remove(struct pci_dev *pdev)
421 {
422 	struct xgbe_prv_data *pdata = pci_get_drvdata(pdev);
423 
424 	xgbe_deconfig_netdev(pdata);
425 
426 	pci_free_irq_vectors(pdata->pcidev);
427 
428 	/* Disable all interrupts in the hardware */
429 	XP_IOWRITE(pdata, XP_INT_EN, 0x0);
430 
431 	xgbe_free_pdata(pdata);
432 }
433 
434 static int __maybe_unused xgbe_pci_suspend(struct device *dev)
435 {
436 	struct xgbe_prv_data *pdata = dev_get_drvdata(dev);
437 	struct net_device *netdev = pdata->netdev;
438 	int ret = 0;
439 
440 	if (netif_running(netdev))
441 		ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
442 
443 	pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
444 	pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER;
445 	XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
446 
447 	return ret;
448 }
449 
450 static int __maybe_unused xgbe_pci_resume(struct device *dev)
451 {
452 	struct xgbe_prv_data *pdata = dev_get_drvdata(dev);
453 	struct net_device *netdev = pdata->netdev;
454 	int ret = 0;
455 
456 	XP_IOWRITE(pdata, XP_INT_EN, 0x1fffff);
457 
458 	pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER;
459 	XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
460 
461 	if (netif_running(netdev)) {
462 		ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
463 
464 		/* Schedule a restart in case the link or phy state changed
465 		 * while we were powered down.
466 		 */
467 		schedule_work(&pdata->restart_work);
468 	}
469 
470 	return ret;
471 }
472 
473 static struct xgbe_version_data xgbe_v2a = {
474 	.init_function_ptrs_phy_impl	= xgbe_init_function_ptrs_phy_v2,
475 	.xpcs_access			= XGBE_XPCS_ACCESS_V2,
476 	.mmc_64bit			= 1,
477 	.tx_max_fifo_size		= 229376,
478 	.rx_max_fifo_size		= 229376,
479 	.tx_tstamp_workaround		= 1,
480 	.ecc_support			= 1,
481 	.i2c_support			= 1,
482 	.irq_reissue_support		= 1,
483 	.tx_desc_prefetch		= 5,
484 	.rx_desc_prefetch		= 5,
485 	.an_cdr_workaround		= 1,
486 };
487 
488 static struct xgbe_version_data xgbe_v2b = {
489 	.init_function_ptrs_phy_impl	= xgbe_init_function_ptrs_phy_v2,
490 	.xpcs_access			= XGBE_XPCS_ACCESS_V2,
491 	.mmc_64bit			= 1,
492 	.tx_max_fifo_size		= 65536,
493 	.rx_max_fifo_size		= 65536,
494 	.tx_tstamp_workaround		= 1,
495 	.ecc_support			= 1,
496 	.i2c_support			= 1,
497 	.irq_reissue_support		= 1,
498 	.tx_desc_prefetch		= 5,
499 	.rx_desc_prefetch		= 5,
500 	.an_cdr_workaround		= 1,
501 };
502 
503 static const struct pci_device_id xgbe_pci_table[] = {
504 	{ PCI_VDEVICE(AMD, 0x1458),
505 	  .driver_data = (kernel_ulong_t)&xgbe_v2a },
506 	{ PCI_VDEVICE(AMD, 0x1459),
507 	  .driver_data = (kernel_ulong_t)&xgbe_v2b },
508 	/* Last entry must be zero */
509 	{ 0, }
510 };
511 MODULE_DEVICE_TABLE(pci, xgbe_pci_table);
512 
513 static SIMPLE_DEV_PM_OPS(xgbe_pci_pm_ops, xgbe_pci_suspend, xgbe_pci_resume);
514 
515 static struct pci_driver xgbe_driver = {
516 	.name = XGBE_DRV_NAME,
517 	.id_table = xgbe_pci_table,
518 	.probe = xgbe_pci_probe,
519 	.remove = xgbe_pci_remove,
520 	.driver = {
521 		.pm = &xgbe_pci_pm_ops,
522 	}
523 };
524 
525 int xgbe_pci_init(void)
526 {
527 	return pci_register_driver(&xgbe_driver);
528 }
529 
530 void xgbe_pci_exit(void)
531 {
532 	pci_unregister_driver(&xgbe_driver);
533 }
534