xref: /illumos-gate/usr/src/uts/common/io/ntxn/unm_gem.c (revision 6e375c8351497b82ffa4f33cbf61d712999b4605)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 NetXen, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 /*
26  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
27  * Use is subject to license terms.
28  */
29 #include <sys/types.h>
30 #include <sys/conf.h>
31 #include <sys/debug.h>
32 #include <sys/stropts.h>
33 #include <sys/stream.h>
34 #include <sys/strlog.h>
35 #include <sys/kmem.h>
36 #include <sys/stat.h>
37 #include <sys/kstat.h>
38 #include <sys/vtrace.h>
39 #include <sys/dlpi.h>
40 #include <sys/strsun.h>
41 #include <sys/ethernet.h>
42 #include <sys/modctl.h>
43 #include <sys/errno.h>
44 #include <sys/dditypes.h>
45 #include <sys/ddi.h>
46 #include <sys/sunddi.h>
47 #include <sys/sysmacros.h>
48 #include <sys/pci.h>
49 #include <sys/ddi_intr.h>
50 
51 #include "unm_nic.h"
52 #include "unm_nic_hw.h"
53 #include "unm_brdcfg.h"
54 #include "nic_cmn.h"
55 #include "nic_phan_reg.h"
56 #include "unm_nic_ioctl.h"
57 #include "nx_hw_pci_regs.h"
58 
59 char ident[] = "Netxen nic driver v" UNM_NIC_VERSIONID;
60 char unm_nic_driver_name[] = "ntxn";
61 int verbmsg = 0;
62 
63 static char txbcopythreshold_propname[] = "tx_bcopy_threshold";
64 static char rxbcopythreshold_propname[] = "rx_bcopy_threshold";
65 static char rxringsize_propname[] = "rx_ring_size";
66 static char jumborxringsize_propname[] = "jumbo_rx_ring_size";
67 static char txringsize_propname[] = "tx_ring_size";
68 static char defaultmtu_propname[] = "default_mtu";
69 static char dmesg_propname[] = "verbose_driver";
70 
71 #define	STRUCT_COPY(a, b)	bcopy(&(b), &(a), sizeof (a))
72 
73 extern int unm_register_mac(unm_adapter *adapter);
74 extern void unm_fini_kstats(unm_adapter* adapter);
75 extern void unm_nic_remove(unm_adapter *adapter);
76 extern int unm_nic_suspend(unm_adapter *);
77 extern uint_t unm_intr(caddr_t, caddr_t);
78 
79 /* Data access requirements. */
80 static struct ddi_device_acc_attr unm_dev_attr = {
81 	DDI_DEVICE_ATTR_V0,
82 	DDI_STRUCTURE_LE_ACC,
83 	DDI_STRICTORDER_ACC
84 };
85 
86 static struct ddi_device_acc_attr unm_buf_attr = {
87 	DDI_DEVICE_ATTR_V0,
88 	DDI_NEVERSWAP_ACC,
89 	DDI_STRICTORDER_ACC
90 };
91 
92 static ddi_dma_attr_t unm_dma_attr_desc = {
93 	DMA_ATTR_V0,		/* dma_attr_version */
94 	0,			/* dma_attr_addr_lo */
95 	0xffffffffull,		/* dma_attr_addr_hi */
96 	0x000fffffull,		/* dma_attr_count_max */
97 	4096,			/* dma_attr_align */
98 	0x000fffffull,		/* dma_attr_burstsizes */
99 	4,			/* dma_attr_minxfer */
100 	0x003fffffull,		/* dma_attr_maxxfer */
101 	0xffffffffull,		/* dma_attr_seg */
102 	1,			/* dma_attr_sgllen */
103 	1,			/* dma_attr_granular */
104 	0			/* dma_attr_flags */
105 };
106 
107 static ddi_dma_attr_t unm_dma_attr_rxbuf = {
108 	DMA_ATTR_V0,		/* dma_attr_version */
109 	0,			/* dma_attr_addr_lo */
110 	0x7ffffffffULL,		/* dma_attr_addr_hi */
111 	0xffffull,		/* dma_attr_count_max */
112 	4096,			/* dma_attr_align */
113 	0xfff8ull,		/* dma_attr_burstsizes */
114 	1,			/* dma_attr_minxfer */
115 	0xffffffffull,		/* dma_attr_maxxfer */
116 	0xffffull,		/* dma_attr_seg */
117 	1,			/* dma_attr_sgllen */
118 	1,			/* dma_attr_granular */
119 	0			/* dma_attr_flags */
120 };
121 
122 static ddi_dma_attr_t unm_dma_attr_cmddesc = {
123 	DMA_ATTR_V0,		/* dma_attr_version */
124 	0,			/* dma_attr_addr_lo */
125 	0x7ffffffffULL,		/* dma_attr_addr_hi */
126 	0xffffull,		/* dma_attr_count_max */
127 	1,			/* dma_attr_align */
128 	0xfff8ull,		/* dma_attr_burstsizes */
129 	1,			/* dma_attr_minxfer */
130 	0xffff0ull,		/* dma_attr_maxxfer */
131 	0xffffull,		/* dma_attr_seg */
132 	16,			/* dma_attr_sgllen */
133 	1,			/* dma_attr_granular */
134 	0			/* dma_attr_flags */
135 };
136 
137 static struct nx_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
138 
139 static int
140 check_hw_init(struct unm_adapter_s *adapter)
141 {
142 	u32	val;
143 	int	ret = 0;
144 
145 	adapter->unm_nic_hw_read_wx(adapter, UNM_CAM_RAM(0x1fc), &val, 4);
146 	if (val == 0x55555555) {
147 		/* This is the first boot after power up */
148 		adapter->unm_nic_hw_read_wx(adapter, UNM_ROMUSB_GLB_SW_RESET,
149 		    &val, 4);
150 		if (val != 0x80000f)
151 			ret = -1;
152 
153 		if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
154 			/* Start P2 boot loader */
155 			adapter->unm_nic_pci_write_normalize(adapter,
156 			    UNM_CAM_RAM(0x1fc), UNM_BDINFO_MAGIC);
157 			adapter->unm_nic_pci_write_normalize(adapter,
158 			    UNM_ROMUSB_GLB_PEGTUNE_DONE, 1);
159 		}
160 	}
161 	return (ret);
162 }
163 
164 
165 static int
166 unm_get_flash_block(unm_adapter *adapter, int base, int size, uint32_t *buf)
167 {
168 	int i, addr;
169 	uint32_t *ptr32;
170 
171 	addr  = base;
172 	ptr32 = buf;
173 	for (i = 0; i < size / sizeof (uint32_t); i++) {
174 		if (rom_fast_read(adapter, addr, (int *)ptr32) == -1)
175 			return (-1);
176 		ptr32++;
177 		addr += sizeof (uint32_t);
178 	}
179 	if ((char *)buf + size > (char *)ptr32) {
180 		int local;
181 
182 		if (rom_fast_read(adapter, addr, &local) == -1)
183 			return (-1);
184 		(void) memcpy(ptr32, &local,
185 		    (uintptr_t)((char *)buf + size) - (uintptr_t)(char *)ptr32);
186 	}
187 
188 	return (0);
189 }
190 
191 
192 static int
193 get_flash_mac_addr(struct unm_adapter_s *adapter, u64 mac[])
194 {
195 	uint32_t *pmac = (uint32_t *)&mac[0];
196 
197 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
198 		uint32_t temp, crbaddr;
199 		uint16_t *pmac16 = (uint16_t *)pmac;
200 
201 		// FOR P3, read from CAM RAM
202 
203 		int pci_func = adapter->ahw.pci_func;
204 		pmac16 += (4*pci_func);
205 		crbaddr = CRB_MAC_BLOCK_START + (4 * ((pci_func/2) * 3)) +
206 		    (4 * (pci_func & 1));
207 
208 		adapter->unm_nic_hw_read_wx(adapter, crbaddr, &temp, 4);
209 		if (pci_func & 1) {
210 			*pmac16++ = (temp >> 16);
211 			adapter->unm_nic_hw_read_wx(adapter, crbaddr+4,
212 			    &temp, 4);
213 			*pmac16++ = (temp & 0xffff);
214 			*pmac16++ = (temp >> 16);
215 			*pmac16 = 0;
216 		} else {
217 			*pmac16++ = (temp & 0xffff);
218 			*pmac16++ = (temp >> 16);
219 			adapter->unm_nic_hw_read_wx(adapter, crbaddr+4,
220 			    &temp, 4);
221 			*pmac16++ = (temp & 0xffff);
222 			*pmac16 = 0;
223 		}
224 		return (0);
225 	}
226 
227 
228 	if (unm_get_flash_block(adapter, USER_START +
229 	    offsetof(unm_user_info_t, mac_addr), FLASH_NUM_PORTS * sizeof (U64),
230 	    pmac) == -1)
231 		return (-1);
232 
233 	if (*mac == ~0ULL) {
234 		if (unm_get_flash_block(adapter, USER_START_OLD +
235 		    offsetof(unm_old_user_info_t, mac_addr),
236 		    FLASH_NUM_PORTS * sizeof (U64), pmac) == -1)
237 			return (-1);
238 
239 		if (*mac == ~0ULL)
240 			return (-1);
241 	}
242 
243 	return (0);
244 }
245 
246 static int
247 is_flash_supported(unm_adapter *adapter)
248 {
249 	int locs[] = { 0, 0x4, 0x100, 0x4000, 0x4128 };
250 	int addr, val01, val02, i, j;
251 
252 	/* if the flash size less than 4Mb, make huge war cry and die */
253 	for (j = 1; j < 4; j++) {
254 		addr = j * 0x100000;
255 		for (i = 0; i < (sizeof (locs) / sizeof (locs[0])); i++) {
256 			if (rom_fast_read(adapter, locs[i], &val01) == 0 &&
257 			    rom_fast_read(adapter, (addr + locs[i]),
258 			    &val02) == 0) {
259 				if (val01 == val02)
260 					return (-1);
261 			} else {
262 				return (-1);
263 			}
264 		}
265 	}
266 
267 	return (0);
268 }
269 
270 static int
271 unm_initialize_dummy_dma(unm_adapter *adapter)
272 {
273 	uint32_t		hi, lo, temp;
274 	ddi_dma_cookie_t	cookie;
275 
276 	if (unm_pci_alloc_consistent(adapter, UNM_HOST_DUMMY_DMA_SIZE,
277 	    (caddr_t *)&adapter->dummy_dma.addr, &cookie,
278 	    &adapter->dummy_dma.dma_handle,
279 	    &adapter->dummy_dma.acc_handle) != DDI_SUCCESS) {
280 		cmn_err(CE_WARN, "%s%d: Unable to alloc dummy dma buf\n",
281 		    adapter->name, adapter->instance);
282 		return (DDI_ENOMEM);
283 	}
284 
285 	adapter->dummy_dma.phys_addr = cookie.dmac_laddress;
286 
287 	hi = (adapter->dummy_dma.phys_addr >> 32) & 0xffffffff;
288 	lo = adapter->dummy_dma.phys_addr & 0xffffffff;
289 
290 	UNM_READ_LOCK(&adapter->adapter_lock);
291 	adapter->unm_nic_hw_write_wx(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI,
292 	    &hi, 4);
293 	adapter->unm_nic_hw_write_wx(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO,
294 	    &lo, 4);
295 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
296 		temp = DUMMY_BUF_INIT;
297 		adapter->unm_nic_hw_write_wx(adapter, CRB_HOST_DUMMY_BUF,
298 		    &temp, 4);
299 	}
300 	UNM_READ_UNLOCK(&adapter->adapter_lock);
301 
302 	return (DDI_SUCCESS);
303 }
304 
305 void
306 unm_free_dummy_dma(unm_adapter *adapter)
307 {
308 	if (adapter->dummy_dma.addr) {
309 		unm_pci_free_consistent(&adapter->dummy_dma.dma_handle,
310 		    &adapter->dummy_dma.acc_handle);
311 		adapter->dummy_dma.addr = NULL;
312 	}
313 }
314 
315 static int
316 unm_pci_cfg_init(unm_adapter *adapter)
317 {
318 	hardware_context *hwcontext;
319 	ddi_acc_handle_t pci_cfg_hdl;
320 	int *reg_options;
321 	dev_info_t *dip;
322 	uint_t noptions;
323 	int ret;
324 	uint16_t vendor_id, pci_cmd_word;
325 	uint8_t	base_class, sub_class, prog_class;
326 	uint32_t pexsizes;
327 	struct nx_legacy_intr_set *legacy_intrp;
328 
329 	hwcontext = &adapter->ahw;
330 	pci_cfg_hdl = adapter->pci_cfg_handle;
331 	dip = adapter->dip;
332 
333 	vendor_id = pci_config_get16(pci_cfg_hdl, PCI_CONF_VENID);
334 
335 	if (vendor_id != 0x4040) {
336 		cmn_err(CE_WARN, "%s%d: vendor id %x not 0x4040\n",
337 		    adapter->name, adapter->instance, vendor_id);
338 		return (DDI_FAILURE);
339 	}
340 
341 	ret = ddi_prop_lookup_int_array(DDI_DEV_T_ANY,
342 	    dip, 0, "reg", &reg_options, &noptions);
343 	if (ret != DDI_PROP_SUCCESS) {
344 		cmn_err(CE_WARN, "%s%d: Could not determine reg property\n",
345 		    adapter->name, adapter->instance);
346 		return (DDI_FAILURE);
347 	}
348 
349 	hwcontext->pci_func = (reg_options[0] >> 8) & 0x7;
350 	ddi_prop_free(reg_options);
351 
352 	base_class = pci_config_get8(pci_cfg_hdl, PCI_CONF_BASCLASS);
353 	sub_class = pci_config_get8(pci_cfg_hdl, PCI_CONF_SUBCLASS);
354 	prog_class = pci_config_get8(pci_cfg_hdl, PCI_CONF_PROGCLASS);
355 
356 	/*
357 	 * Need this check so that MEZZ card mgmt interface ntxn0 could fail
358 	 * attach & return and proceed to next interfaces ntxn1 and ntxn2
359 	 */
360 	if ((base_class != 0x02) || (sub_class != 0) || (prog_class != 0)) {
361 		cmn_err(CE_WARN, "%s%d: Base/sub/prog class problem %d/%d/%d\n",
362 		    adapter->name, adapter->instance, base_class, sub_class,
363 		    prog_class);
364 		return (DDI_FAILURE);
365 	}
366 
367 	hwcontext->revision_id = pci_config_get8(pci_cfg_hdl, PCI_CONF_REVID);
368 
369 	/*
370 	 * Refuse to work with dubious P3 cards.
371 	 */
372 	if ((hwcontext->revision_id >= NX_P3_A0) &&
373 	    (hwcontext->revision_id < NX_P3_B1)) {
374 		cmn_err(CE_WARN, "%s%d: NetXen chip revs between 0x%x-0x%x "
375 		    "is unsupported\n", adapter->name, adapter->instance,
376 		    NX_P3_A0, NX_P3_B0);
377 		return (DDI_FAILURE);
378 	}
379 
380 	/*
381 	 * Save error reporting settings; clear [19:16] error status bits.
382 	 * Set max read request [14:12] to 0 for 128 bytes. Set max payload
383 	 * size[7:5] to 0 for for 128 bytes.
384 	 */
385 	if (NX_IS_REVISION_P2(hwcontext->revision_id)) {
386 		pexsizes = pci_config_get32(pci_cfg_hdl, 0xd8);
387 		pexsizes &= 7;
388 		pexsizes |= 0xF0000;
389 		pci_config_put32(pci_cfg_hdl, 0xd8, pexsizes);
390 	}
391 
392 	pci_cmd_word = pci_config_get16(pci_cfg_hdl, PCI_CONF_COMM);
393 	pci_cmd_word |= (PCI_COMM_INTX_DISABLE | PCI_COMM_SERR_ENABLE);
394 	pci_config_put16(pci_cfg_hdl, PCI_CONF_COMM, pci_cmd_word);
395 
396 	if (hwcontext->revision_id >= NX_P3_B0)
397 		legacy_intrp = &legacy_intr[hwcontext->pci_func];
398 	else
399 		legacy_intrp = &legacy_intr[0];
400 
401 	adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
402 	adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
403 	adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
404 	adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
405 
406 	return (DDI_SUCCESS);
407 }
408 
409 void
410 unm_free_tx_dmahdl(unm_adapter *adapter)
411 {
412 	int i;
413 	unm_dmah_node_t	 *nodep;
414 
415 	mutex_enter(&adapter->tx_lock);
416 	nodep = &adapter->tx_dma_hdls[0];
417 
418 	for (i = 0; i < adapter->MaxTxDescCount + EXTRA_HANDLES; i++) {
419 		if (nodep->dmahdl != NULL) {
420 			ddi_dma_free_handle(&nodep->dmahdl);
421 			nodep->dmahdl = NULL;
422 		}
423 		nodep->next = NULL;
424 		nodep++;
425 	}
426 
427 	adapter->dmahdl_pool = NULL;
428 	adapter->freehdls = 0;
429 	mutex_exit(&adapter->tx_lock);
430 }
431 
432 static int
433 unm_alloc_tx_dmahdl(unm_adapter *adapter)
434 {
435 	int		i;
436 	unm_dmah_node_t	*nodep = &adapter->tx_dma_hdls[0];
437 
438 	mutex_enter(&adapter->tx_lock);
439 	for (i = 0; i < adapter->MaxTxDescCount + EXTRA_HANDLES; i++) {
440 		if (ddi_dma_alloc_handle(adapter->dip, &unm_dma_attr_cmddesc,
441 		    DDI_DMA_DONTWAIT, NULL, &nodep->dmahdl) != DDI_SUCCESS) {
442 			mutex_exit(&adapter->tx_lock);
443 			goto alloc_hdl_fail;
444 		}
445 
446 		if (i > 0)
447 			nodep->next = nodep - 1;
448 		nodep++;
449 	}
450 
451 	adapter->dmahdl_pool = nodep - 1;
452 	adapter->freehdls = i;
453 	mutex_exit(&adapter->tx_lock);
454 
455 	return (DDI_SUCCESS);
456 
457 alloc_hdl_fail:
458 	unm_free_tx_dmahdl(adapter);
459 	cmn_err(CE_WARN, "%s%d: Failed transmit ring dma handle allocation\n",
460 	    adapter->name, adapter->instance);
461 	return (DDI_FAILURE);
462 }
463 
464 static void
465 unm_free_dma_mem(dma_area_t *dma_p)
466 {
467 	if (dma_p->dma_hdl != NULL) {
468 		if (dma_p->ncookies) {
469 			(void) ddi_dma_unbind_handle(dma_p->dma_hdl);
470 			dma_p->ncookies = 0;
471 		}
472 	}
473 	if (dma_p->acc_hdl != NULL) {
474 		ddi_dma_mem_free(&dma_p->acc_hdl);
475 		dma_p->acc_hdl = NULL;
476 	}
477 	if (dma_p->dma_hdl != NULL) {
478 		ddi_dma_free_handle(&dma_p->dma_hdl);
479 		dma_p->dma_hdl = NULL;
480 	}
481 }
482 
483 static int
484 unm_alloc_dma_mem(unm_adapter *adapter, int size, uint_t dma_flag,
485 	ddi_dma_attr_t *dma_attr_p, dma_area_t *dma_p)
486 {
487 	int ret;
488 	caddr_t vaddr;
489 	size_t actual_size;
490 	ddi_dma_cookie_t	cookie;
491 
492 	ret = ddi_dma_alloc_handle(adapter->dip,
493 	    dma_attr_p, DDI_DMA_DONTWAIT,
494 	    NULL, &dma_p->dma_hdl);
495 	if (ret != DDI_SUCCESS) {
496 		cmn_err(CE_WARN, "%s%d: Failed ddi_dma_alloc_handle\n",
497 		    adapter->name, adapter->instance);
498 		goto dma_mem_fail;
499 	}
500 
501 	ret = ddi_dma_mem_alloc(dma_p->dma_hdl,
502 	    size, &adapter->gc_attr_desc,
503 	    dma_flag & (DDI_DMA_STREAMING | DDI_DMA_CONSISTENT),
504 	    DDI_DMA_DONTWAIT, NULL, &vaddr, &actual_size,
505 	    &dma_p->acc_hdl);
506 	if (ret != DDI_SUCCESS) {
507 		cmn_err(CE_WARN, "%s%d: ddi_dma_mem_alloc() failed\n",
508 		    adapter->name, adapter->instance);
509 		goto dma_mem_fail;
510 	}
511 
512 	if (actual_size < size) {
513 		cmn_err(CE_WARN, "%s%d: ddi_dma_mem_alloc() allocated small\n",
514 		    adapter->name, adapter->instance);
515 		goto dma_mem_fail;
516 	}
517 
518 	ret = ddi_dma_addr_bind_handle(dma_p->dma_hdl,
519 	    NULL, vaddr, size, dma_flag, DDI_DMA_DONTWAIT,
520 	    NULL, &cookie, &dma_p->ncookies);
521 	if (ret != DDI_DMA_MAPPED || dma_p->ncookies != 1) {
522 		cmn_err(CE_WARN, "%s%d: ddi_dma_addr_bind_handle() failed, "
523 		    "%d, %d\n", adapter->name, adapter->instance, ret,
524 		    dma_p->ncookies);
525 		goto dma_mem_fail;
526 	}
527 
528 	dma_p->dma_addr = cookie.dmac_laddress;
529 	dma_p->vaddr = vaddr;
530 	(void) memset(vaddr, 0, size);
531 
532 	return (DDI_SUCCESS);
533 
534 dma_mem_fail:
535 	unm_free_dma_mem(dma_p);
536 	return (DDI_FAILURE);
537 }
538 
539 void
540 unm_free_tx_buffers(unm_adapter *adapter)
541 {
542 	int i;
543 	dma_area_t *dma_p;
544 	struct unm_cmd_buffer *cmd_buf;
545 	unm_dmah_node_t	 *nodep;
546 
547 	cmd_buf = &adapter->cmd_buf_arr[0];
548 
549 	for (i = 0; i < adapter->MaxTxDescCount; i++) {
550 		dma_p = &cmd_buf->dma_area;
551 		unm_free_dma_mem(dma_p);
552 		nodep = cmd_buf->head;
553 		while (nodep != NULL) {
554 			(void) ddi_dma_unbind_handle(nodep->dmahdl);
555 			nodep = nodep->next;
556 		}
557 		if (cmd_buf->msg != NULL)
558 			freemsg(cmd_buf->msg);
559 		cmd_buf++;
560 	}
561 	adapter->freecmds = 0;
562 }
563 
564 static int
565 unm_alloc_tx_buffers(unm_adapter *adapter)
566 {
567 	int i, ret, size, allocated = 0;
568 	dma_area_t *dma_p;
569 	struct unm_cmd_buffer *cmd_buf;
570 
571 	cmd_buf = &adapter->cmd_buf_arr[0];
572 	size = adapter->maxmtu;
573 
574 	for (i = 0; i < adapter->MaxTxDescCount; i++) {
575 		dma_p = &cmd_buf->dma_area;
576 		ret = unm_alloc_dma_mem(adapter, size,
577 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
578 		    &unm_dma_attr_rxbuf, dma_p);
579 		if (ret != DDI_SUCCESS)
580 			goto alloc_tx_buffer_fail;
581 
582 		allocated++;
583 		cmd_buf++;
584 	}
585 	adapter->freecmds = adapter->MaxTxDescCount;
586 	return (DDI_SUCCESS);
587 
588 alloc_tx_buffer_fail:
589 
590 	cmd_buf = &adapter->cmd_buf_arr[0];
591 	for (i = 0; i < allocated; i++) {
592 		dma_p = &cmd_buf->dma_area;
593 		unm_free_dma_mem(dma_p);
594 		cmd_buf++;
595 	}
596 	cmn_err(CE_WARN, "%s%d: Failed transmit ring memory allocation\n",
597 	    adapter->name, adapter->instance);
598 	return (DDI_FAILURE);
599 }
600 
601 /*
602  * Called by freemsg() to "free" the resource.
603  */
604 static void
605 unm_rx_buffer_recycle(char *arg)
606 {
607 	unm_rx_buffer_t *rx_buffer = (unm_rx_buffer_t *)(uintptr_t)arg;
608 	unm_adapter *adapter = rx_buffer->adapter;
609 	unm_rcv_desc_ctx_t *rcv_desc = rx_buffer->rcv_desc;
610 
611 	rx_buffer->mp = desballoc(rx_buffer->dma_info.vaddr,
612 	    rcv_desc->dma_size, 0, &rx_buffer->rx_recycle);
613 
614 	if (rx_buffer->mp == NULL)
615 		adapter->stats.desballocfailed++;
616 
617 	mutex_enter(rcv_desc->recycle_lock);
618 	rx_buffer->next = rcv_desc->recycle_list;
619 	rcv_desc->recycle_list = rx_buffer;
620 	rcv_desc->rx_buf_recycle++;
621 	mutex_exit(rcv_desc->recycle_lock);
622 }
623 
624 void
625 unm_destroy_rx_ring(unm_rcv_desc_ctx_t *rcv_desc)
626 {
627 	uint32_t i, total_buf;
628 	unm_rx_buffer_t *buf_pool;
629 
630 	total_buf = rcv_desc->rx_buf_total;
631 	buf_pool = rcv_desc->rx_buf_pool;
632 	for (i = 0; i < total_buf; i++) {
633 		if (buf_pool->mp != NULL)
634 			freemsg(buf_pool->mp);
635 		unm_free_dma_mem(&buf_pool->dma_info);
636 		buf_pool++;
637 	}
638 
639 	kmem_free(rcv_desc->rx_buf_pool, sizeof (unm_rx_buffer_t) * total_buf);
640 	rcv_desc->rx_buf_pool = NULL;
641 	rcv_desc->pool_list = NULL;
642 	rcv_desc->recycle_list = NULL;
643 	rcv_desc->rx_buf_free = 0;
644 
645 	mutex_destroy(rcv_desc->pool_lock);
646 	mutex_destroy(rcv_desc->recycle_lock);
647 }
648 
649 static int
650 unm_create_rx_ring(unm_adapter *adapter, unm_rcv_desc_ctx_t *rcv_desc)
651 {
652 	int		i, ret, allocate = 0, sreoff;
653 	uint32_t	total_buf;
654 	dma_area_t	*dma_info;
655 	unm_rx_buffer_t	*rx_buffer;
656 
657 	sreoff = adapter->ahw.cut_through ? 0 : IP_ALIGNMENT_BYTES;
658 
659 	/* temporarily set the total rx buffers two times of MaxRxDescCount */
660 	total_buf = rcv_desc->rx_buf_total = rcv_desc->MaxRxDescCount * 2;
661 
662 	rcv_desc->rx_buf_pool = kmem_zalloc(sizeof (unm_rx_buffer_t) *
663 	    total_buf, KM_SLEEP);
664 	rx_buffer = rcv_desc->rx_buf_pool;
665 	for (i = 0; i < total_buf; i++) {
666 		dma_info = &rx_buffer->dma_info;
667 		ret = unm_alloc_dma_mem(adapter, rcv_desc->buf_size,
668 		    DDI_DMA_READ | DDI_DMA_STREAMING,
669 		    &unm_dma_attr_rxbuf, dma_info);
670 		if (ret != DDI_SUCCESS)
671 			goto alloc_mem_failed;
672 		else {
673 			allocate++;
674 			dma_info->vaddr = (void *) ((char *)dma_info->vaddr +
675 			    sreoff);
676 			dma_info->dma_addr += sreoff;
677 			rx_buffer->rx_recycle.free_func =
678 			    unm_rx_buffer_recycle;
679 			rx_buffer->rx_recycle.free_arg = (caddr_t)rx_buffer;
680 			rx_buffer->next = NULL;
681 			rx_buffer->mp = desballoc(dma_info->vaddr,
682 			    rcv_desc->dma_size, 0, &rx_buffer->rx_recycle);
683 			if (rx_buffer->mp == NULL)
684 				adapter->stats.desballocfailed++;
685 			rx_buffer->rcv_desc = rcv_desc;
686 			rx_buffer->adapter = adapter;
687 			rx_buffer++;
688 		}
689 	}
690 
691 	for (i = 0; i < (total_buf - 1); i++) {
692 		rcv_desc->rx_buf_pool[i].next = &rcv_desc->rx_buf_pool[i + 1];
693 	}
694 
695 	rcv_desc->pool_list = rcv_desc->rx_buf_pool;
696 	rcv_desc->recycle_list = NULL;
697 	rcv_desc->rx_buf_free = total_buf;
698 
699 	mutex_init(rcv_desc->pool_lock, NULL,
700 	    MUTEX_DRIVER, (DDI_INTR_PRI(adapter->intr_pri)));
701 	mutex_init(rcv_desc->recycle_lock, NULL,
702 	    MUTEX_DRIVER, (DDI_INTR_PRI(adapter->intr_pri)));
703 
704 	return (DDI_SUCCESS);
705 
706 alloc_mem_failed:
707 	rx_buffer = rcv_desc->rx_buf_pool;
708 	for (i = 0; i < allocate; i++, rx_buffer++) {
709 		dma_info = &rx_buffer->dma_info;
710 		if (rx_buffer->mp != NULL)
711 			freemsg(rx_buffer->mp);
712 		unm_free_dma_mem(dma_info);
713 	}
714 
715 	kmem_free(rcv_desc->rx_buf_pool, sizeof (unm_rx_buffer_t) * total_buf);
716 	rcv_desc->rx_buf_pool = NULL;
717 
718 	cmn_err(CE_WARN, "%s%d: Failed receive ring resource allocation\n",
719 	    adapter->name, adapter->instance);
720 	return (DDI_FAILURE);
721 }
722 
723 static void
724 unm_check_options(unm_adapter *adapter)
725 {
726 	int			i, ring, tx_desc, rx_desc, rx_jdesc;
727 	unm_recv_context_t	*recv_ctx;
728 	unm_rcv_desc_ctx_t	*rcv_desc;
729 	uint8_t			revid = adapter->ahw.revision_id;
730 	dev_info_t		*dip = adapter->dip;
731 
732 	verbmsg = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
733 	    dmesg_propname, 0);
734 
735 	adapter->tx_bcopy_threshold = ddi_prop_get_int(DDI_DEV_T_ANY,
736 	    dip, DDI_PROP_DONTPASS, txbcopythreshold_propname,
737 	    UNM_TX_BCOPY_THRESHOLD);
738 	adapter->rx_bcopy_threshold = ddi_prop_get_int(DDI_DEV_T_ANY,
739 	    dip, DDI_PROP_DONTPASS, rxbcopythreshold_propname,
740 	    UNM_RX_BCOPY_THRESHOLD);
741 
742 	tx_desc = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
743 	    txringsize_propname, MAX_CMD_DESCRIPTORS_HOST);
744 	if (tx_desc >= 256 && tx_desc <= MAX_CMD_DESCRIPTORS &&
745 	    !(tx_desc & (tx_desc - 1))) {
746 		adapter->MaxTxDescCount = tx_desc;
747 	} else {
748 		cmn_err(CE_WARN, "%s%d: TxRingSize defaulting to %d, since "
749 		    ".conf value is not 2 power aligned in range 256 - %d\n",
750 		    adapter->name, adapter->instance, MAX_CMD_DESCRIPTORS_HOST,
751 		    MAX_CMD_DESCRIPTORS);
752 		adapter->MaxTxDescCount = MAX_CMD_DESCRIPTORS_HOST;
753 	}
754 
755 	rx_desc = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
756 	    rxringsize_propname, MAX_RCV_DESCRIPTORS);
757 	if (rx_desc >= NX_MIN_DRIVER_RDS_SIZE &&
758 	    rx_desc <= NX_MAX_SUPPORTED_RDS_SIZE &&
759 	    !(rx_desc & (rx_desc - 1))) {
760 		adapter->MaxRxDescCount = rx_desc;
761 	} else {
762 		cmn_err(CE_WARN, "%s%d: RxRingSize defaulting to %d, since "
763 		    ".conf value is not 2 power aligned in range %d - %d\n",
764 		    adapter->name, adapter->instance, MAX_RCV_DESCRIPTORS,
765 		    NX_MIN_DRIVER_RDS_SIZE, NX_MAX_SUPPORTED_RDS_SIZE);
766 		adapter->MaxRxDescCount = MAX_RCV_DESCRIPTORS;
767 	}
768 
769 	rx_jdesc = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
770 	    jumborxringsize_propname, MAX_JUMBO_RCV_DESCRIPTORS);
771 	if (rx_jdesc >= NX_MIN_DRIVER_RDS_SIZE &&
772 	    rx_jdesc <= NX_MAX_SUPPORTED_JUMBO_RDS_SIZE &&
773 	    !(rx_jdesc & (rx_jdesc - 1))) {
774 		adapter->MaxJumboRxDescCount = rx_jdesc;
775 	} else {
776 		cmn_err(CE_WARN, "%s%d: JumboRingSize defaulting to %d, since "
777 		    ".conf value is not 2 power aligned in range %d - %d\n",
778 		    adapter->name, adapter->instance, MAX_JUMBO_RCV_DESCRIPTORS,
779 		    NX_MIN_DRIVER_RDS_SIZE, NX_MAX_SUPPORTED_JUMBO_RDS_SIZE);
780 		adapter->MaxJumboRxDescCount = MAX_JUMBO_RCV_DESCRIPTORS;
781 	}
782 
783 	adapter->MaxLroRxDescCount = MAX_LRO_RCV_DESCRIPTORS;
784 
785 	adapter->mtu = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
786 	    DDI_PROP_DONTPASS, defaultmtu_propname, MTU_SIZE);
787 
788 	if (adapter->mtu < MTU_SIZE) {
789 		cmn_err(CE_WARN, "Raising mtu to %d\n", MTU_SIZE);
790 		adapter->mtu = MTU_SIZE;
791 	}
792 	adapter->maxmtu = NX_IS_REVISION_P2(revid) ? P2_MAX_MTU : P3_MAX_MTU;
793 	if (adapter->mtu > adapter->maxmtu) {
794 		cmn_err(CE_WARN, "Lowering mtu to %d\n", adapter->maxmtu);
795 		adapter->mtu = adapter->maxmtu;
796 	}
797 
798 	adapter->maxmtu += NX_MAX_ETHERHDR;
799 
800 	for (i = 0; i < MAX_RCV_CTX; ++i) {
801 		recv_ctx = &adapter->recv_ctx[i];
802 
803 		for (ring = 0; ring < adapter->max_rds_rings; ring++) {
804 			rcv_desc = &recv_ctx->rcv_desc[ring];
805 
806 			switch (RCV_DESC_TYPE(ring)) {
807 			case RCV_DESC_NORMAL:
808 				rcv_desc->MaxRxDescCount =
809 				    adapter->MaxRxDescCount;
810 				if (adapter->ahw.cut_through) {
811 					rcv_desc->dma_size =
812 					    NX_CT_DEFAULT_RX_BUF_LEN;
813 					rcv_desc->buf_size = rcv_desc->dma_size;
814 				} else {
815 					rcv_desc->dma_size =
816 					    NX_RX_NORMAL_BUF_MAX_LEN;
817 					rcv_desc->buf_size =
818 					    rcv_desc->dma_size +
819 					    IP_ALIGNMENT_BYTES;
820 				}
821 				break;
822 
823 			case RCV_DESC_JUMBO:
824 				rcv_desc->MaxRxDescCount =
825 				    adapter->MaxJumboRxDescCount;
826 				if (adapter->ahw.cut_through) {
827 					rcv_desc->dma_size =
828 					    rcv_desc->buf_size =
829 					    NX_P3_RX_JUMBO_BUF_MAX_LEN;
830 				} else {
831 					if (NX_IS_REVISION_P2(revid))
832 						rcv_desc->dma_size =
833 						    NX_P2_RX_JUMBO_BUF_MAX_LEN;
834 					else
835 						rcv_desc->dma_size =
836 						    NX_P3_RX_JUMBO_BUF_MAX_LEN;
837 					rcv_desc->buf_size =
838 					    rcv_desc->dma_size +
839 					    IP_ALIGNMENT_BYTES;
840 				}
841 				break;
842 
843 			case RCV_RING_LRO:
844 				rcv_desc->MaxRxDescCount =
845 				    adapter->MaxLroRxDescCount;
846 				rcv_desc->buf_size = MAX_RX_LRO_BUFFER_LENGTH;
847 				rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN;
848 				break;
849 			default:
850 				break;
851 			}
852 		}
853 	}
854 }
855 
856 static void
857 vector128M(unm_adapter *aptr)
858 {
859 	aptr->unm_nic_pci_change_crbwindow = &unm_nic_pci_change_crbwindow_128M;
860 	aptr->unm_crb_writelit_adapter = &unm_crb_writelit_adapter_128M;
861 	aptr->unm_nic_hw_write_wx = &unm_nic_hw_write_wx_128M;
862 	aptr->unm_nic_hw_read_wx = &unm_nic_hw_read_wx_128M;
863 	aptr->unm_nic_hw_write_ioctl = &unm_nic_hw_write_ioctl_128M;
864 	aptr->unm_nic_hw_read_ioctl = &unm_nic_hw_read_ioctl_128M;
865 	aptr->unm_nic_pci_mem_write = &unm_nic_pci_mem_write_128M;
866 	aptr->unm_nic_pci_mem_read = &unm_nic_pci_mem_read_128M;
867 	aptr->unm_nic_pci_write_immediate = &unm_nic_pci_write_immediate_128M;
868 	aptr->unm_nic_pci_read_immediate = &unm_nic_pci_read_immediate_128M;
869 	aptr->unm_nic_pci_write_normalize = &unm_nic_pci_write_normalize_128M;
870 	aptr->unm_nic_pci_read_normalize = &unm_nic_pci_read_normalize_128M;
871 	aptr->unm_nic_pci_set_window = &unm_nic_pci_set_window_128M;
872 	aptr->unm_nic_clear_statistics = &unm_nic_clear_statistics_128M;
873 	aptr->unm_nic_fill_statistics = &unm_nic_fill_statistics_128M;
874 }
875 
876 static void
877 vector2M(unm_adapter *aptr)
878 {
879 	aptr->unm_nic_pci_change_crbwindow = &unm_nic_pci_change_crbwindow_2M;
880 	aptr->unm_crb_writelit_adapter = &unm_crb_writelit_adapter_2M;
881 	aptr->unm_nic_hw_write_wx = &unm_nic_hw_write_wx_2M;
882 	aptr->unm_nic_hw_read_wx = &unm_nic_hw_read_wx_2M;
883 	aptr->unm_nic_hw_write_ioctl = &unm_nic_hw_write_wx_2M;
884 	aptr->unm_nic_hw_read_ioctl = &unm_nic_hw_read_wx_2M;
885 	aptr->unm_nic_pci_mem_write = &unm_nic_pci_mem_write_2M;
886 	aptr->unm_nic_pci_mem_read = &unm_nic_pci_mem_read_2M;
887 	aptr->unm_nic_pci_write_immediate = &unm_nic_pci_write_immediate_2M;
888 	aptr->unm_nic_pci_read_immediate = &unm_nic_pci_read_immediate_2M;
889 	aptr->unm_nic_pci_write_normalize = &unm_nic_pci_write_normalize_2M;
890 	aptr->unm_nic_pci_read_normalize = &unm_nic_pci_read_normalize_2M;
891 	aptr->unm_nic_pci_set_window = &unm_nic_pci_set_window_2M;
892 	aptr->unm_nic_clear_statistics = &unm_nic_clear_statistics_2M;
893 	aptr->unm_nic_fill_statistics = &unm_nic_fill_statistics_2M;
894 }
895 
896 static int
897 unm_pci_map_setup(unm_adapter *adapter)
898 {
899 	int ret;
900 	caddr_t reg_base, db_base;
901 	caddr_t mem_ptr0, mem_ptr1 = NULL, mem_ptr2 = NULL;
902 	unsigned long pci_len0;
903 	unsigned long first_page_group_start, first_page_group_end;
904 
905 	off_t regsize, dbsize = UNM_DB_MAPSIZE_BYTES;
906 	dev_info_t *dip = adapter->dip;
907 
908 	adapter->ahw.qdr_sn_window = adapter->ahw.ddr_mn_window = -1;
909 
910 	/* map register space */
911 
912 	ret = ddi_dev_regsize(dip, 1, &regsize);
913 	if (ret != DDI_SUCCESS) {
914 		cmn_err(CE_WARN, "%s%d: failed to read reg size for bar0\n",
915 		    adapter->name, adapter->instance);
916 		return (DDI_FAILURE);
917 	}
918 
919 	ret = ddi_regs_map_setup(dip, 1, &reg_base, 0,
920 	    regsize, &unm_dev_attr, &adapter->regs_handle);
921 	if (ret != DDI_SUCCESS) {
922 		cmn_err(CE_WARN, "%s%d: failed to map registers\n",
923 		    adapter->name, adapter->instance);
924 		return (DDI_FAILURE);
925 	}
926 
927 	mem_ptr0 = reg_base;
928 
929 	if (regsize == UNM_PCI_128MB_SIZE) {
930 		pci_len0 = FIRST_PAGE_GROUP_SIZE;
931 		mem_ptr1 = mem_ptr0 + SECOND_PAGE_GROUP_START;
932 		mem_ptr2 = mem_ptr0 + THIRD_PAGE_GROUP_START;
933 		first_page_group_start = FIRST_PAGE_GROUP_START;
934 		first_page_group_end   = FIRST_PAGE_GROUP_END;
935 		vector128M(adapter);
936 	} else if (regsize == UNM_PCI_32MB_SIZE) {
937 		pci_len0 = 0;
938 		mem_ptr1 = mem_ptr0;
939 		mem_ptr2 = mem_ptr0 +
940 		    (THIRD_PAGE_GROUP_START - SECOND_PAGE_GROUP_START);
941 		first_page_group_start = 0;
942 		first_page_group_end   = 0;
943 		vector128M(adapter);
944 	} else if (regsize == UNM_PCI_2MB_SIZE) {
945 		pci_len0 = UNM_PCI_2MB_SIZE;
946 		first_page_group_start = 0;
947 		first_page_group_end = 0;
948 		adapter->ahw.ddr_mn_window = adapter->ahw.qdr_sn_window = 0;
949 		adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
950 		    (adapter->ahw.pci_func * 0x20);
951 		if (adapter->ahw.pci_func < 4)
952 			adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW +
953 			    (adapter->ahw.pci_func * 0x20);
954 		else
955 			adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW +
956 			    0xA0 + ((adapter->ahw.pci_func - 4) * 0x10);
957 		vector2M(adapter);
958 	} else {
959 		cmn_err(CE_WARN, "%s%d: invalid pci regs map size %ld\n",
960 		    adapter->name, adapter->instance, regsize);
961 		ddi_regs_map_free(&adapter->regs_handle);
962 		return (DDI_FAILURE);
963 	}
964 
965 	adapter->ahw.pci_base0  = (unsigned long)mem_ptr0;
966 	adapter->ahw.pci_len0   = pci_len0;
967 	adapter->ahw.pci_base1  = (unsigned long)mem_ptr1;
968 	adapter->ahw.pci_len1   = SECOND_PAGE_GROUP_SIZE;
969 	adapter->ahw.pci_base2  = (unsigned long)mem_ptr2;
970 	adapter->ahw.pci_len2   = THIRD_PAGE_GROUP_SIZE;
971 	adapter->ahw.crb_base   =
972 	    PCI_OFFSET_SECOND_RANGE(adapter, UNM_PCI_CRBSPACE);
973 
974 	adapter->ahw.first_page_group_start = first_page_group_start;
975 	adapter->ahw.first_page_group_end   = first_page_group_end;
976 
977 	/* map doorbell */
978 
979 	ret = ddi_regs_map_setup(dip, 2, &db_base, 0,
980 	    dbsize, &unm_dev_attr, &adapter->db_handle);
981 	if (ret != DDI_SUCCESS) {
982 		cmn_err(CE_WARN, "%s%d: failed to map doorbell\n",
983 		    adapter->name, adapter->instance);
984 		ddi_regs_map_free(&adapter->regs_handle);
985 		return (DDI_FAILURE);
986 	}
987 
988 	adapter->ahw.db_base   = (unsigned long)db_base;
989 	adapter->ahw.db_len    = dbsize;
990 
991 	return (DDI_SUCCESS);
992 }
993 
994 static int
995 unm_initialize_intr(unm_adapter *adapter)
996 {
997 
998 	int		ret;
999 	int		type, count, avail, actual;
1000 
1001 	ret = ddi_intr_get_supported_types(adapter->dip, &type);
1002 	if (ret != DDI_SUCCESS) {
1003 		cmn_err(CE_WARN, "%s%d: ddi_intr_get_supported_types() "
1004 		    "failed\n", adapter->name, adapter->instance);
1005 		return (DDI_FAILURE);
1006 	}
1007 
1008 	type = DDI_INTR_TYPE_MSI;
1009 	ret = ddi_intr_get_nintrs(adapter->dip, type, &count);
1010 	if ((ret == DDI_SUCCESS) && (count > 0))
1011 		goto found_msi;
1012 
1013 	type = DDI_INTR_TYPE_FIXED;
1014 	ret = ddi_intr_get_nintrs(adapter->dip, type, &count);
1015 	if ((ret != DDI_SUCCESS) || (count == 0)) {
1016 		cmn_err(CE_WARN,
1017 		    "ddi_intr_get_nintrs() failure ret=%d\n", ret);
1018 		return (DDI_FAILURE);
1019 	}
1020 
1021 found_msi:
1022 	adapter->intr_type = type;
1023 	adapter->flags &= ~(UNM_NIC_MSI_ENABLED | UNM_NIC_MSIX_ENABLED);
1024 	if (type == DDI_INTR_TYPE_MSI)
1025 		adapter->flags |= UNM_NIC_MSI_ENABLED;
1026 
1027 	/* Get number of available interrupts */
1028 	ret = ddi_intr_get_navail(adapter->dip, type, &avail);
1029 	if ((ret != DDI_SUCCESS) || (avail == 0)) {
1030 		cmn_err(CE_WARN, "ddi_intr_get_navail() failure, ret=%d\n",
1031 		    ret);
1032 		return (DDI_FAILURE);
1033 	}
1034 
1035 	ret = ddi_intr_alloc(adapter->dip, &adapter->intr_handle,
1036 	    type, 0, 1, &actual, DDI_INTR_ALLOC_NORMAL);
1037 	if ((ret != DDI_SUCCESS) || (actual == 0)) {
1038 		cmn_err(CE_WARN, "ddi_intr_alloc() failure: %d\n", ret);
1039 		return (DDI_FAILURE);
1040 	}
1041 
1042 	ret = ddi_intr_get_pri(adapter->intr_handle, &adapter->intr_pri);
1043 	if (ret != DDI_SUCCESS) {
1044 		cmn_err(CE_WARN, "ddi_intr_get_pri() failure: %d\n", ret);
1045 	}
1046 
1047 	/* Call ddi_intr_add_handler() */
1048 	ret = ddi_intr_add_handler(adapter->intr_handle, unm_intr,
1049 	    (caddr_t)adapter, NULL);
1050 	if (ret != DDI_SUCCESS) {
1051 		cmn_err(CE_WARN, "%s%d: ddi_intr_add_handler() failure\n",
1052 		    adapter->name, adapter->instance);
1053 		(void) ddi_intr_free(adapter->intr_handle);
1054 		return (DDI_FAILURE);
1055 	}
1056 
1057 	/* Add softintr if required */
1058 
1059 	return (DDI_SUCCESS);
1060 
1061 }
1062 
1063 void
1064 unm_destroy_intr(unm_adapter *adapter)
1065 {
1066 	/* disable interrupt */
1067 	if (adapter->intr_type == DDI_INTR_TYPE_MSI)
1068 		(void) ddi_intr_block_disable(&adapter->intr_handle, 1);
1069 	else
1070 		(void) ddi_intr_disable(adapter->intr_handle);
1071 
1072 	(void) ddi_intr_remove_handler(adapter->intr_handle);
1073 	(void) ddi_intr_free(adapter->intr_handle);
1074 
1075 	/* Remove the software intr handler */
1076 }
1077 
1078 static void
1079 netxen_set_port_mode(unm_adapter *adapter)
1080 {
1081 	static int	wol_port_mode = UNM_PORT_MODE_AUTO_NEG_1G;
1082 	static int	port_mode = UNM_PORT_MODE_AUTO_NEG;
1083 	int		btype = adapter->ahw.boardcfg.board_type, data = 0;
1084 
1085 	if (btype == UNM_BRDTYPE_P3_HMEZ || btype == UNM_BRDTYPE_P3_XG_LOM) {
1086 		data = port_mode;	/* set to port_mode normally */
1087 		if ((port_mode != UNM_PORT_MODE_802_3_AP) &&
1088 		    (port_mode != UNM_PORT_MODE_XG) &&
1089 		    (port_mode != UNM_PORT_MODE_AUTO_NEG_1G) &&
1090 		    (port_mode != UNM_PORT_MODE_AUTO_NEG_XG))
1091 			data = UNM_PORT_MODE_AUTO_NEG;
1092 
1093 		adapter->unm_nic_hw_write_wx(adapter, UNM_PORT_MODE_ADDR,
1094 		    &data, 4);
1095 
1096 		if ((wol_port_mode != UNM_PORT_MODE_802_3_AP) &&
1097 		    (wol_port_mode != UNM_PORT_MODE_XG) &&
1098 		    (wol_port_mode != UNM_PORT_MODE_AUTO_NEG_1G) &&
1099 		    (wol_port_mode != UNM_PORT_MODE_AUTO_NEG_XG))
1100 			wol_port_mode = UNM_PORT_MODE_AUTO_NEG;
1101 
1102 		adapter->unm_nic_hw_write_wx(adapter, UNM_WOL_PORT_MODE,
1103 		    &wol_port_mode, 4);
1104 	}
1105 }
1106 
1107 static void
1108 netxen_pcie_strap_init(unm_adapter *adapter)
1109 {
1110 	ddi_acc_handle_t	pcihdl = adapter->pci_cfg_handle;
1111 	u32			chicken, control, c8c9value = 0xF1000;
1112 
1113 	adapter->unm_nic_hw_read_wx(adapter, UNM_PCIE_REG(PCIE_CHICKEN3),
1114 	    &chicken, 4);
1115 
1116 	chicken &= 0xFCFFFFFF;		/* clear chicken3 25:24 */
1117 	control = pci_config_get32(pcihdl, 0xD0);
1118 	if ((control & 0x000F0000) != 0x00020000)	/* is it gen1? */
1119 		chicken |= 0x01000000;
1120 	adapter->unm_nic_hw_write_wx(adapter, UNM_PCIE_REG(PCIE_CHICKEN3),
1121 	    &chicken, 4);
1122 	control = pci_config_get32(pcihdl, 0xC8);
1123 	control = pci_config_get32(pcihdl, 0xC8);
1124 	pci_config_put32(pcihdl, 0xC8, c8c9value);
1125 }
1126 
1127 static int
1128 netxen_read_mac_addr(unm_adapter *adapter)
1129 {
1130 	u64		mac_addr[FLASH_NUM_PORTS + 1];
1131 	unsigned char	*p;
1132 	int		i;
1133 
1134 	if (is_flash_supported(adapter) != 0)
1135 		return (-1);
1136 
1137 	if (get_flash_mac_addr(adapter, mac_addr) != 0)
1138 		return (-1);
1139 
1140 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1141 		p = (unsigned char *)&mac_addr[adapter->ahw.pci_func];
1142 	else
1143 		p = (unsigned char *)&mac_addr[adapter->portnum];
1144 
1145 	for (i = 0; i < 6; i++)
1146 		adapter->mac_addr[i] = p[5 - i];
1147 
1148 	if (unm_nic_macaddr_set(adapter, adapter->mac_addr) != 0)
1149 		return (-1);
1150 
1151 	return (0);
1152 }
1153 
1154 static int
1155 unmattach(dev_info_t *dip, ddi_attach_cmd_t cmd)
1156 {
1157 	unm_adapter			*adapter;
1158 	unm_recv_context_t		*recv_ctx = NULL;
1159 	unm_rcv_desc_ctx_t		*rcv_desc = NULL;
1160 	int				i, first_driver = 0;
1161 	int				ret, ring, temp;
1162 
1163 	switch (cmd) {
1164 	case DDI_ATTACH:
1165 		break;
1166 	case DDI_RESUME:
1167 	case DDI_PM_RESUME:
1168 	default:
1169 		return (DDI_FAILURE);
1170 	}
1171 
1172 	adapter = kmem_zalloc(sizeof (unm_adapter), KM_SLEEP);
1173 	adapter->dip = dip;
1174 	ddi_set_driver_private(dip, adapter);
1175 	adapter->instance = ddi_get_instance(dip);
1176 
1177 	adapter->name = ddi_driver_name(dip);
1178 
1179 	ret = pci_config_setup(dip, &adapter->pci_cfg_handle);
1180 	if (ret != DDI_SUCCESS) {
1181 		cmn_err(CE_WARN, "%s%d: pci_config_setup failed\n",
1182 		    adapter->name, adapter->instance);
1183 		goto attach_setup_err;
1184 	}
1185 
1186 	ret = unm_pci_cfg_init(adapter);
1187 	if (ret != DDI_SUCCESS)
1188 		goto attach_err;
1189 
1190 	ret = unm_pci_map_setup(adapter);
1191 	if (ret != DDI_SUCCESS)
1192 		goto attach_err;
1193 
1194 	if (unm_initialize_intr(adapter) != DDI_SUCCESS)
1195 		goto attach_unmap_regs;
1196 
1197 	rw_init(&adapter->adapter_lock, NULL,
1198 	    RW_DRIVER, DDI_INTR_PRI(adapter->intr_pri));
1199 	mutex_init(&adapter->tx_lock, NULL,
1200 	    MUTEX_DRIVER, (DDI_INTR_PRI(adapter->intr_pri)));
1201 	mutex_init(&adapter->lock, NULL,
1202 	    MUTEX_DRIVER, (DDI_INTR_PRI(adapter->intr_pri)));
1203 
1204 	adapter->portnum = (int8_t)adapter->ahw.pci_func;
1205 
1206 	/*
1207 	 * Set the CRB window to invalid. If any register in window 0 is
1208 	 * accessed it should set window to 0 and then reset it to 1.
1209 	 */
1210 	adapter->curr_window = 255;
1211 
1212 	adapter->fw_major = adapter->unm_nic_pci_read_normalize(adapter,
1213 	    UNM_FW_VERSION_MAJOR);
1214 
1215 	if (adapter->fw_major < 4)
1216 		adapter->max_rds_rings = 3;
1217 	else
1218 		adapter->max_rds_rings = 2;
1219 
1220 	STRUCT_COPY(adapter->gc_dma_attr_desc, unm_dma_attr_desc);
1221 	STRUCT_COPY(adapter->gc_attr_desc, unm_buf_attr);
1222 
1223 	ret = unm_nic_get_board_info(adapter);
1224 	if (ret != DDI_SUCCESS) {
1225 		cmn_err(CE_WARN, "%s%d: error reading board config\n",
1226 		    adapter->name, adapter->instance);
1227 		goto attach_destroy_intr;
1228 	}
1229 
1230 	/* Mezz cards have PCI function 0, 2, 3 enabled */
1231 	switch (adapter->ahw.boardcfg.board_type) {
1232 	case UNM_BRDTYPE_P2_SB31_10G_IMEZ:
1233 	case UNM_BRDTYPE_P2_SB31_10G_HMEZ:
1234 		if (adapter->ahw.pci_func >= 2) {
1235 			adapter->portnum = adapter->ahw.pci_func - 2;
1236 		}
1237 	default:
1238 		break;
1239 	}
1240 
1241 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1242 		temp = UNM_CRB_READ_VAL_ADAPTER(UNM_MIU_MN_CONTROL, adapter);
1243 		adapter->ahw.cut_through = NX_IS_SYSTEM_CUT_THROUGH(temp);
1244 		if (adapter->ahw.pci_func == 0)
1245 			first_driver = 1;
1246 	} else {
1247 		if (adapter->portnum == 0)
1248 			first_driver = 1;
1249 	}
1250 
1251 	unm_check_options(adapter);
1252 
1253 	if (first_driver) {
1254 		int first_boot = adapter->unm_nic_pci_read_normalize(adapter,
1255 		    UNM_CAM_RAM(0x1fc));
1256 
1257 		if (check_hw_init(adapter) != 0) {
1258 			cmn_err(CE_WARN, "%s%d: Error in HW init sequence\n",
1259 			    adapter->name, adapter->instance);
1260 			goto attach_destroy_intr;
1261 		}
1262 
1263 		if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1264 			netxen_set_port_mode(adapter);
1265 
1266 		if (first_boot != 0x55555555) {
1267 			temp = 0;
1268 			adapter->unm_nic_hw_write_wx(adapter, CRB_CMDPEG_STATE,
1269 			    &temp, 4);
1270 			if (pinit_from_rom(adapter, 0) != 0)
1271 				goto attach_destroy_intr;
1272 
1273 			drv_usecwait(500);
1274 
1275 			ret = load_from_flash(adapter);
1276 			if (ret != DDI_SUCCESS)
1277 				goto attach_destroy_intr;
1278 		}
1279 
1280 		if (ret = unm_initialize_dummy_dma(adapter))
1281 			goto attach_destroy_intr;
1282 
1283 		/*
1284 		 * Tell the hardware our version number.
1285 		 */
1286 		i = (_UNM_NIC_MAJOR << 16) |
1287 		    ((_UNM_NIC_MINOR << 8)) | (_UNM_NIC_SUBVERSION);
1288 		adapter->unm_nic_hw_write_wx(adapter, CRB_DRIVER_VERSION,
1289 		    &i, 4);
1290 
1291 		/* Unlock the HW, prompting the boot sequence */
1292 		if ((first_boot == 0x55555555) &&
1293 		    (NX_IS_REVISION_P2(adapter->ahw.revision_id)))
1294 			adapter->unm_nic_pci_write_normalize(adapter,
1295 			    UNM_ROMUSB_GLB_PEGTUNE_DONE, 1);
1296 
1297 		/* Handshake with the card before we register the devices. */
1298 		if (phantom_init(adapter, 0) != DDI_SUCCESS)
1299 			goto attach_destroy_intr;
1300 	}
1301 
1302 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1303 		netxen_pcie_strap_init(adapter);
1304 
1305 	/*
1306 	 * See if the firmware gave us a virtual-physical port mapping.
1307 	 */
1308 	adapter->physical_port = adapter->portnum;
1309 	i = adapter->unm_nic_pci_read_normalize(adapter,
1310 	    CRB_V2P(adapter->portnum));
1311 	if (i != 0x55555555)
1312 		adapter->physical_port = (uint16_t)i;
1313 
1314 	adapter->cmd_buf_arr = (struct unm_cmd_buffer *)kmem_zalloc(
1315 	    sizeof (struct unm_cmd_buffer) * adapter->MaxTxDescCount,
1316 	    KM_SLEEP);
1317 
1318 	for (i = 0; i < MAX_RCV_CTX; ++i) {
1319 		recv_ctx = &adapter->recv_ctx[i];
1320 
1321 		for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1322 			rcv_desc = &recv_ctx->rcv_desc[ring];
1323 			ret = unm_create_rx_ring(adapter, rcv_desc);
1324 			if (ret != DDI_SUCCESS)
1325 				goto attach_free_cmdbufs;
1326 		}
1327 	}
1328 
1329 	ret = unm_alloc_tx_dmahdl(adapter);
1330 	if (ret != DDI_SUCCESS)
1331 		goto attach_free_cmdbufs;
1332 
1333 	ret = unm_alloc_tx_buffers(adapter);
1334 	if (ret != DDI_SUCCESS)
1335 		goto attach_free_tx_dmahdl;
1336 
1337 	adapter->ahw.linkup = 0;
1338 
1339 	if (receive_peg_ready(adapter)) {
1340 		ret = -EIO;
1341 		goto attach_free_tx_buffers;
1342 	}
1343 
1344 	if (netxen_read_mac_addr(adapter))
1345 		cmn_err(CE_WARN, "%s%d: Failed to read MAC addr\n",
1346 		    adapter->name, adapter->instance);
1347 
1348 	unm_nic_flash_print(adapter);
1349 
1350 	if (verbmsg != 0) {
1351 		switch (adapter->ahw.board_type) {
1352 		case UNM_NIC_GBE:
1353 			cmn_err(CE_NOTE, "%s: QUAD GbE port %d initialized\n",
1354 			    unm_nic_driver_name, adapter->portnum);
1355 			break;
1356 
1357 		case UNM_NIC_XGBE:
1358 			cmn_err(CE_NOTE, "%s: XGbE port %d initialized\n",
1359 			    unm_nic_driver_name, adapter->portnum);
1360 			break;
1361 		}
1362 	}
1363 
1364 	ret = unm_register_mac(adapter);
1365 	if (ret != DDI_SUCCESS) {
1366 		cmn_err(CE_NOTE, "%s%d: Mac registration error\n",
1367 		    adapter->name, adapter->instance);
1368 		goto attach_free_tx_buffers;
1369 	}
1370 
1371 	return (DDI_SUCCESS);
1372 
1373 attach_free_tx_buffers:
1374 	unm_free_tx_buffers(adapter);
1375 attach_free_tx_dmahdl:
1376 	unm_free_tx_dmahdl(adapter);
1377 attach_free_cmdbufs:
1378 	kmem_free(adapter->cmd_buf_arr, sizeof (struct unm_cmd_buffer) *
1379 	    adapter->MaxTxDescCount);
1380 	for (i = 0; i < MAX_RCV_CTX; ++i) {
1381 		recv_ctx = &adapter->recv_ctx[i];
1382 
1383 		for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1384 			rcv_desc = &recv_ctx->rcv_desc[ring];
1385 			if (rcv_desc->rx_buf_pool != NULL)
1386 				unm_destroy_rx_ring(rcv_desc);
1387 		}
1388 	}
1389 
1390 	if (adapter->portnum == 0)
1391 		unm_free_dummy_dma(adapter);
1392 attach_destroy_intr:
1393 	unm_destroy_intr(adapter);
1394 attach_unmap_regs:
1395 	ddi_regs_map_free(&(adapter->regs_handle));
1396 	ddi_regs_map_free(&(adapter->db_handle));
1397 attach_err:
1398 	pci_config_teardown(&adapter->pci_cfg_handle);
1399 attach_setup_err:
1400 	kmem_free(adapter, sizeof (unm_adapter));
1401 	return (ret);
1402 }
1403 
1404 static int
1405 unmdetach(dev_info_t *dip, ddi_detach_cmd_t cmd)
1406 {
1407 	unm_adapter  *adapter = (unm_adapter *)ddi_get_driver_private(dip);
1408 
1409 	if (adapter == NULL)
1410 	return (DDI_FAILURE);
1411 
1412 	switch (cmd) {
1413 	case DDI_DETACH:
1414 
1415 		unm_fini_kstats(adapter);
1416 		adapter->kstats[0] = NULL;
1417 
1418 		if (adapter->pci_cfg_handle != NULL)
1419 		pci_config_teardown(&adapter->pci_cfg_handle);
1420 
1421 		unm_nd_cleanup(adapter);
1422 		unm_nic_remove(adapter);
1423 		return (DDI_SUCCESS);
1424 
1425 	case DDI_SUSPEND:
1426 		return (unm_nic_suspend(adapter));
1427 
1428 	default:
1429 		break;
1430 	}
1431 
1432 	return (DDI_FAILURE);
1433 }
1434 
1435 #ifdef SOLARIS11
1436 DDI_DEFINE_STREAM_OPS(unm_ops, nulldev, nulldev, unmattach, unmdetach,
1437 	nodev, NULL, D_MP, NULL, NULL);
1438 #else
1439 DDI_DEFINE_STREAM_OPS(unm_ops, nulldev, nulldev, unmattach, unmdetach,
1440 	nodev, NULL, D_MP, NULL);
1441 #endif
1442 
1443 static struct modldrv modldrv = {
1444 	&mod_driverops,	/* Type of module.  This one is a driver */
1445 	ident,
1446 	&unm_ops,	/* driver ops */
1447 };
1448 
1449 static struct modlinkage modlinkage = {
1450 	MODREV_1,
1451 	(&modldrv),
1452 	NULL
1453 };
1454 
1455 
1456 int
1457 _init(void)
1458 {
1459 	int ret;
1460 
1461 	unm_ops.devo_cb_ops->cb_str = NULL;
1462 	mac_init_ops(&unm_ops, "ntxn");
1463 
1464 	ret = mod_install(&modlinkage);
1465 	if (ret != DDI_SUCCESS) {
1466 		mac_fini_ops(&unm_ops);
1467 		cmn_err(CE_WARN, "ntxn: mod_install failed\n");
1468 	}
1469 
1470 	return (ret);
1471 }
1472 
1473 
1474 int
1475 _fini(void)
1476 {
1477 	int ret;
1478 
1479 	ret = mod_remove(&modlinkage);
1480 	if (ret == DDI_SUCCESS)
1481 		mac_fini_ops(&unm_ops);
1482 	return (ret);
1483 }
1484 
1485 int
1486 _info(struct modinfo *modinfop)
1487 {
1488 	return (mod_info(&modlinkage, modinfop));
1489 }
1490