1/*-
2 * Copyright (c) 2002-2007 Neterion, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#include <dev/nxge/include/xgehal-fifo.h>
30#include <dev/nxge/include/xgehal-device.h>
31
32static xge_hal_status_e
33__hal_fifo_mempool_item_alloc(xge_hal_mempool_h mempoolh,
34	              void *memblock,
35	              int memblock_index,
36	              xge_hal_mempool_dma_t *dma_object,
37	              void *item,
38	              int index,
39	              int is_last,
40	              void *userdata)
41{
42	int memblock_item_idx;
43	xge_hal_fifo_txdl_priv_t *txdl_priv;
44	xge_hal_fifo_txd_t *txdp = (xge_hal_fifo_txd_t *)item;
45	xge_hal_fifo_t *fifo = (xge_hal_fifo_t *)userdata;
46
47	xge_assert(item);
48	txdl_priv = (xge_hal_fifo_txdl_priv_t *) \
49	            __hal_mempool_item_priv((xge_hal_mempool_t *) mempoolh,
50	                                    memblock_index,
51	                                    item,
52	                                    &memblock_item_idx);
53	xge_assert(txdl_priv);
54
55	/* pre-format HAL's TxDL's private */
56	txdl_priv->dma_offset = (char*)item - (char*)memblock;
57	txdl_priv->dma_addr = dma_object->addr + txdl_priv->dma_offset;
58	txdl_priv->dma_handle = dma_object->handle;
59	txdl_priv->memblock   = memblock;
60	txdl_priv->first_txdp = (xge_hal_fifo_txd_t *)item;
61	txdl_priv->next_txdl_priv = NULL;
62	txdl_priv->dang_txdl = NULL;
63	txdl_priv->dang_frags = 0;
64	txdl_priv->alloc_frags = 0;
65
66#ifdef XGE_DEBUG_ASSERT
67	txdl_priv->dma_object = dma_object;
68#endif
69	txdp->host_control = (u64)(ulong_t)txdl_priv;
70
71#ifdef XGE_HAL_ALIGN_XMIT
72	txdl_priv->align_vaddr = NULL;
73	txdl_priv->align_dma_addr = (dma_addr_t)0;
74
75#ifndef XGE_HAL_ALIGN_XMIT_ALLOC_RT
76	{
77	xge_hal_status_e status;
78	if (fifo->config->alignment_size) {
79	        status =__hal_fifo_dtr_align_alloc_map(fifo, txdp);
80	    if (status != XGE_HAL_OK)  {
81	            xge_debug_mm(XGE_ERR,
82	                  "align buffer[%d] %d bytes, status %d",
83	              index,
84	              fifo->align_size,
85	              status);
86	            return status;
87	    }
88	}
89	}
90#endif
91#endif
92
93	if (fifo->channel.dtr_init) {
94	    fifo->channel.dtr_init(fifo, (xge_hal_dtr_h)txdp, index,
95	           fifo->channel.userdata, XGE_HAL_CHANNEL_OC_NORMAL);
96	}
97
98	return XGE_HAL_OK;
99}
100
101
102static xge_hal_status_e
103__hal_fifo_mempool_item_free(xge_hal_mempool_h mempoolh,
104	              void *memblock,
105	              int memblock_index,
106	              xge_hal_mempool_dma_t *dma_object,
107	              void *item,
108	              int index,
109	              int is_last,
110	              void *userdata)
111{
112	int memblock_item_idx;
113	xge_hal_fifo_txdl_priv_t *txdl_priv;
114#ifdef XGE_HAL_ALIGN_XMIT
115	xge_hal_fifo_t *fifo = (xge_hal_fifo_t *)userdata;
116#endif
117
118	xge_assert(item);
119
120	txdl_priv = (xge_hal_fifo_txdl_priv_t *) \
121	            __hal_mempool_item_priv((xge_hal_mempool_t *) mempoolh,
122	                                    memblock_index,
123	                                    item,
124	                                    &memblock_item_idx);
125	xge_assert(txdl_priv);
126
127#ifdef XGE_HAL_ALIGN_XMIT
128	if (fifo->config->alignment_size) {
129	    if (txdl_priv->align_dma_addr != 0) {
130	        xge_os_dma_unmap(fifo->channel.pdev,
131	               txdl_priv->align_dma_handle,
132	               txdl_priv->align_dma_addr,
133	               fifo->align_size,
134	               XGE_OS_DMA_DIR_TODEVICE);
135
136	        txdl_priv->align_dma_addr = 0;
137	    }
138
139	    if (txdl_priv->align_vaddr != NULL) {
140	        xge_os_dma_free(fifo->channel.pdev,
141	              txdl_priv->align_vaddr,
142	              fifo->align_size,
143	              &txdl_priv->align_dma_acch,
144	              &txdl_priv->align_dma_handle);
145
146	        txdl_priv->align_vaddr = NULL;
147	    }
148	}
149#endif
150
151	return XGE_HAL_OK;
152}
153
154xge_hal_status_e
155__hal_fifo_open(xge_hal_channel_h channelh, xge_hal_channel_attr_t *attr)
156{
157	xge_hal_device_t *hldev;
158	xge_hal_status_e status;
159	xge_hal_fifo_t *fifo = (xge_hal_fifo_t *)channelh;
160	xge_hal_fifo_queue_t *queue;
161	int i, txdl_size, max_arr_index, mid_point;
162	xge_hal_dtr_h  dtrh;
163
164	hldev = (xge_hal_device_t *)fifo->channel.devh;
165	fifo->config = &hldev->config.fifo;
166	queue = &fifo->config->queue[attr->post_qid];
167
168#if defined(XGE_HAL_TX_MULTI_RESERVE)
169	xge_os_spin_lock_init(&fifo->channel.reserve_lock, hldev->pdev);
170#elif defined(XGE_HAL_TX_MULTI_RESERVE_IRQ)
171	xge_os_spin_lock_init_irq(&fifo->channel.reserve_lock, hldev->irqh);
172#endif
173#if defined(XGE_HAL_TX_MULTI_POST)
174	if (xge_hal_device_check_id(hldev) == XGE_HAL_CARD_XENA)  {
175	            fifo->post_lock_ptr = &hldev->xena_post_lock;
176	} else {
177	        xge_os_spin_lock_init(&fifo->channel.post_lock, hldev->pdev);
178	            fifo->post_lock_ptr = &fifo->channel.post_lock;
179	}
180#elif defined(XGE_HAL_TX_MULTI_POST_IRQ)
181	if (xge_hal_device_check_id(hldev) == XGE_HAL_CARD_XENA)  {
182	            fifo->post_lock_ptr = &hldev->xena_post_lock;
183	} else {
184	        xge_os_spin_lock_init_irq(&fifo->channel.post_lock,
185	                hldev->irqh);
186	            fifo->post_lock_ptr = &fifo->channel.post_lock;
187	}
188#endif
189
190	fifo->align_size =
191	    fifo->config->alignment_size * fifo->config->max_aligned_frags;
192
193	/* Initializing the BAR1 address as the start of
194	 * the FIFO queue pointer and as a location of FIFO control
195	 * word. */
196	fifo->hw_pair =
197	        (xge_hal_fifo_hw_pair_t *) (void *)(hldev->bar1 +
198	            (attr->post_qid * XGE_HAL_FIFO_HW_PAIR_OFFSET));
199
200	/* apply "interrupts per txdl" attribute */
201	fifo->interrupt_type = XGE_HAL_TXD_INT_TYPE_UTILZ;
202	if (queue->intr) {
203	    fifo->interrupt_type = XGE_HAL_TXD_INT_TYPE_PER_LIST;
204	}
205	fifo->no_snoop_bits =
206	    (int)(XGE_HAL_TX_FIFO_NO_SNOOP(queue->no_snoop_bits));
207
208	/*
209	 * FIFO memory management strategy:
210	 *
211	 * TxDL splitted into three independent parts:
212	 *  - set of TxD's
213	 *  - TxD HAL private part
214	 *  - upper layer private part
215	 *
216	 * Adaptative memory allocation used. i.e. Memory allocated on
217	 * demand with the size which will fit into one memory block.
218	 * One memory block may contain more than one TxDL. In simple case
219	 * memory block size can be equal to CPU page size. On more
220	 * sophisticated OS's memory block can be contigious across
221	 * several pages.
222	 *
223	 * During "reserve" operations more memory can be allocated on demand
224	 * for example due to FIFO full condition.
225	 *
226	 * Pool of memory memblocks never shrinks except __hal_fifo_close
227	 * routine which will essentially stop channel and free the resources.
228	 */
229
230	/* TxDL common private size == TxDL private + ULD private */
231	fifo->priv_size = sizeof(xge_hal_fifo_txdl_priv_t) +
232	attr->per_dtr_space;
233	fifo->priv_size = ((fifo->priv_size + __xge_os_cacheline_size -1) /
234	                           __xge_os_cacheline_size) *
235	                           __xge_os_cacheline_size;
236
237	/* recompute txdl size to be cacheline aligned */
238	fifo->txdl_size = fifo->config->max_frags * sizeof(xge_hal_fifo_txd_t);
239	txdl_size = ((fifo->txdl_size + __xge_os_cacheline_size - 1) /
240	        __xge_os_cacheline_size) * __xge_os_cacheline_size;
241
242	if (fifo->txdl_size != txdl_size)
243	        xge_debug_fifo(XGE_ERR, "cacheline > 128 ( ?? ): %d, %d, %d, %d",
244	    fifo->config->max_frags, fifo->txdl_size, txdl_size,
245	    __xge_os_cacheline_size);
246
247	fifo->txdl_size = txdl_size;
248
249	/* since dtr_init() callback will be called from item_alloc(),
250	 * the same way channels userdata might be used prior to
251	 * channel_initialize() */
252	fifo->channel.dtr_init = attr->dtr_init;
253	fifo->channel.userdata = attr->userdata;
254	fifo->txdl_per_memblock = fifo->config->memblock_size /
255	    fifo->txdl_size;
256
257	fifo->mempool = __hal_mempool_create(hldev->pdev,
258	                     fifo->config->memblock_size,
259	                     fifo->txdl_size,
260	                     fifo->priv_size,
261	                     queue->initial,
262	                     queue->max,
263	                     __hal_fifo_mempool_item_alloc,
264	                     __hal_fifo_mempool_item_free,
265	                     fifo);
266	if (fifo->mempool == NULL) {
267	    return XGE_HAL_ERR_OUT_OF_MEMORY;
268	}
269
270	status = __hal_channel_initialize(channelh, attr,
271	                (void **) __hal_mempool_items_arr(fifo->mempool),
272	                queue->initial, queue->max,
273	                fifo->config->reserve_threshold);
274	if (status != XGE_HAL_OK) {
275	    __hal_fifo_close(channelh);
276	    return status;
277	}
278	xge_debug_fifo(XGE_TRACE,
279	    "DTR  reserve_length:%d reserve_top:%d\n"
280	    "max_frags:%d reserve_threshold:%d\n"
281	    "memblock_size:%d alignment_size:%d max_aligned_frags:%d",
282	    fifo->channel.reserve_length, fifo->channel.reserve_top,
283	    fifo->config->max_frags, fifo->config->reserve_threshold,
284	    fifo->config->memblock_size, fifo->config->alignment_size,
285	    fifo->config->max_aligned_frags);
286
287#ifdef XGE_DEBUG_ASSERT
288	for ( i = 0; i < fifo->channel.reserve_length; i++) {
289	    xge_debug_fifo(XGE_TRACE, "DTR before reversing index:%d"
290	    " handle:%p", i, fifo->channel.reserve_arr[i]);
291	}
292#endif
293
294	xge_assert(fifo->channel.reserve_length);
295	/* reverse the FIFO dtr array */
296	max_arr_index   = fifo->channel.reserve_length - 1;
297	max_arr_index   -=fifo->channel.reserve_top;
298	xge_assert(max_arr_index);
299	mid_point = (fifo->channel.reserve_length - fifo->channel.reserve_top)/2;
300	for (i = 0; i < mid_point; i++) {
301	    dtrh =  fifo->channel.reserve_arr[i];
302	    fifo->channel.reserve_arr[i] =
303	        fifo->channel.reserve_arr[max_arr_index - i];
304	    fifo->channel.reserve_arr[max_arr_index  - i] = dtrh;
305	}
306
307#ifdef XGE_DEBUG_ASSERT
308	for ( i = 0; i < fifo->channel.reserve_length; i++) {
309	    xge_debug_fifo(XGE_TRACE, "DTR after reversing index:%d"
310	    " handle:%p", i, fifo->channel.reserve_arr[i]);
311	}
312#endif
313
314	return XGE_HAL_OK;
315}
316
317void
318__hal_fifo_close(xge_hal_channel_h channelh)
319{
320	xge_hal_fifo_t *fifo = (xge_hal_fifo_t *)channelh;
321	xge_hal_device_t *hldev = (xge_hal_device_t *)fifo->channel.devh;
322
323	if (fifo->mempool) {
324	    __hal_mempool_destroy(fifo->mempool);
325	}
326
327	__hal_channel_terminate(channelh);
328
329#if defined(XGE_HAL_TX_MULTI_RESERVE)
330	xge_os_spin_lock_destroy(&fifo->channel.reserve_lock, hldev->pdev);
331#elif defined(XGE_HAL_TX_MULTI_RESERVE_IRQ)
332	xge_os_spin_lock_destroy_irq(&fifo->channel.reserve_lock, hldev->pdev);
333#endif
334	if (xge_hal_device_check_id(hldev) == XGE_HAL_CARD_HERC)  {
335#if defined(XGE_HAL_TX_MULTI_POST)
336	    xge_os_spin_lock_destroy(&fifo->channel.post_lock, hldev->pdev);
337#elif defined(XGE_HAL_TX_MULTI_POST_IRQ)
338	    xge_os_spin_lock_destroy_irq(&fifo->channel.post_lock,
339	                     hldev->pdev);
340#endif
341	}
342}
343
344void
345__hal_fifo_hw_initialize(xge_hal_device_h devh)
346{
347	xge_hal_device_t *hldev = (xge_hal_device_t *)devh;
348	xge_hal_pci_bar0_t *bar0 = (xge_hal_pci_bar0_t *)(void *)hldev->bar0;
349	u64* tx_fifo_partitions[4];
350	u64* tx_fifo_wrr[5];
351	u64  tx_fifo_wrr_value[5];
352	u64 val64, part0;
353	int i;
354
355	/*  Tx DMA Initialization */
356
357	tx_fifo_partitions[0] = &bar0->tx_fifo_partition_0;
358	tx_fifo_partitions[1] = &bar0->tx_fifo_partition_1;
359	tx_fifo_partitions[2] = &bar0->tx_fifo_partition_2;
360	tx_fifo_partitions[3] = &bar0->tx_fifo_partition_3;
361
362	tx_fifo_wrr[0] = &bar0->tx_w_round_robin_0;
363	tx_fifo_wrr[1] = &bar0->tx_w_round_robin_1;
364	tx_fifo_wrr[2] = &bar0->tx_w_round_robin_2;
365	tx_fifo_wrr[3] = &bar0->tx_w_round_robin_3;
366	tx_fifo_wrr[4] = &bar0->tx_w_round_robin_4;
367
368	tx_fifo_wrr_value[0] = XGE_HAL_FIFO_WRR_0;
369	tx_fifo_wrr_value[1] = XGE_HAL_FIFO_WRR_1;
370	tx_fifo_wrr_value[2] = XGE_HAL_FIFO_WRR_2;
371	tx_fifo_wrr_value[3] = XGE_HAL_FIFO_WRR_3;
372	tx_fifo_wrr_value[4] = XGE_HAL_FIFO_WRR_4;
373
374	/* Note: WRR calendar must be configured before the transmit
375	 *       FIFOs are enabled! page 6-77 user guide */
376
377	if (!hldev->config.rts_qos_en) {
378	    /* all zeroes for Round-Robin */
379	    for (i = 0; i < XGE_HAL_FIFO_MAX_WRR; i++) {
380	        xge_os_pio_mem_write64(hldev->pdev, hldev->regh0, 0,
381	                       tx_fifo_wrr[i]);
382	    }
383
384	    /* reset all of them but '0' */
385	    for (i=1; i < XGE_HAL_FIFO_MAX_PARTITION; i++) {
386	        xge_os_pio_mem_write64(hldev->pdev, hldev->regh0, 0ULL,
387	                       tx_fifo_partitions[i]);
388	    }
389	} else { /* Change the default settings */
390
391	    for (i = 0; i < XGE_HAL_FIFO_MAX_WRR; i++) {
392	        xge_os_pio_mem_write64(hldev->pdev, hldev->regh0,
393	                   tx_fifo_wrr_value[i], tx_fifo_wrr[i]);
394	    }
395	}
396
397	/* configure only configured FIFOs */
398	val64 = 0; part0 = 0;
399	for (i = 0; i < XGE_HAL_MAX_FIFO_NUM; i++) {
400	    int reg_half = i % 2;
401	    int reg_num = i / 2;
402
403	    if (hldev->config.fifo.queue[i].configured) {
404	        int priority = hldev->config.fifo.queue[i].priority;
405	        val64 |=
406	            vBIT((hldev->config.fifo.queue[i].max-1),
407	            (((reg_half) * 32) + 19),
408	            13) | vBIT(priority, (((reg_half)*32) + 5), 3);
409	    }
410
411	    /* NOTE: do write operation for each second u64 half
412	     *       or force for first one if configured number
413	     *   is even */
414	    if (reg_half) {
415	        if (reg_num == 0) {
416	            /* skip partition '0', must write it once at
417	             * the end */
418	            part0 = val64;
419	        } else {
420	            xge_os_pio_mem_write64(hldev->pdev, hldev->regh0,
421	                 val64, tx_fifo_partitions[reg_num]);
422	            xge_debug_fifo(XGE_TRACE,
423	                "fifo partition_%d at: "
424	                "0x"XGE_OS_LLXFMT" is: 0x"XGE_OS_LLXFMT,
425	                reg_num, (unsigned long long)(ulong_t)
426	                tx_fifo_partitions[reg_num],
427	                (unsigned long long)val64);
428	        }
429	        val64 = 0;
430	    }
431	}
432
433	part0 |= BIT(0); /* to enable the FIFO partition. */
434	__hal_pio_mem_write32_lower(hldev->pdev, hldev->regh0, (u32)part0,
435	                     tx_fifo_partitions[0]);
436	xge_os_wmb();
437	__hal_pio_mem_write32_upper(hldev->pdev, hldev->regh0, (u32)(part0>>32),
438	                     tx_fifo_partitions[0]);
439	xge_debug_fifo(XGE_TRACE, "fifo partition_0 at: "
440	        "0x"XGE_OS_LLXFMT" is: 0x"XGE_OS_LLXFMT,
441	        (unsigned long long)(ulong_t)
442	            tx_fifo_partitions[0],
443	        (unsigned long long) part0);
444
445	/*
446	 * Initialization of Tx_PA_CONFIG register to ignore packet
447	 * integrity checking.
448	 */
449	val64 = xge_os_pio_mem_read64(hldev->pdev, hldev->regh0,
450	                            &bar0->tx_pa_cfg);
451	val64 |= XGE_HAL_TX_PA_CFG_IGNORE_FRM_ERR |
452	     XGE_HAL_TX_PA_CFG_IGNORE_SNAP_OUI |
453	     XGE_HAL_TX_PA_CFG_IGNORE_LLC_CTRL |
454	     XGE_HAL_TX_PA_CFG_IGNORE_L2_ERR;
455	xge_os_pio_mem_write64(hldev->pdev, hldev->regh0, val64,
456	                     &bar0->tx_pa_cfg);
457
458	/*
459	 * Assign MSI-X vectors
460	 */
461	for (i = 0; i < XGE_HAL_MAX_FIFO_NUM; i++) {
462	    xge_list_t *item;
463	    xge_hal_channel_t *channel = NULL;
464
465	    if (!hldev->config.fifo.queue[i].configured ||
466	        !hldev->config.fifo.queue[i].intr_vector ||
467	        !hldev->config.intr_mode != XGE_HAL_INTR_MODE_MSIX)
468	        continue;
469
470	    /* find channel */
471	    xge_list_for_each(item, &hldev->free_channels) {
472	        xge_hal_channel_t *tmp;
473	        tmp = xge_container_of(item, xge_hal_channel_t,
474	                       item);
475	        if (tmp->type == XGE_HAL_CHANNEL_TYPE_FIFO &&
476	            tmp->post_qid == i) {
477	            channel = tmp;
478	            break;
479	        }
480	    }
481
482	    if (channel) {
483	        xge_hal_channel_msix_set(channel,
484	            hldev->config.fifo.queue[i].intr_vector);
485	    }
486	}
487
488	xge_debug_fifo(XGE_TRACE, "%s", "fifo channels initialized");
489}
490
491#ifdef XGE_HAL_ALIGN_XMIT
492void
493__hal_fifo_dtr_align_free_unmap(xge_hal_channel_h channelh, xge_hal_dtr_h dtrh)
494{
495	    xge_hal_fifo_txdl_priv_t *txdl_priv;
496	xge_hal_fifo_txd_t *txdp = (xge_hal_fifo_txd_t *)dtrh;
497	xge_hal_fifo_t *fifo = (xge_hal_fifo_t *)channelh;
498
499	txdl_priv = __hal_fifo_txdl_priv(txdp);
500
501	if (txdl_priv->align_dma_addr != 0) {
502	    xge_os_dma_unmap(fifo->channel.pdev,
503	           txdl_priv->align_dma_handle,
504	           txdl_priv->align_dma_addr,
505	           fifo->align_size,
506	           XGE_OS_DMA_DIR_TODEVICE);
507
508	            txdl_priv->align_dma_addr = 0;
509	}
510
511	    if (txdl_priv->align_vaddr != NULL) {
512	        xge_os_dma_free(fifo->channel.pdev,
513	              txdl_priv->align_vaddr,
514	              fifo->align_size,
515	              &txdl_priv->align_dma_acch,
516	              &txdl_priv->align_dma_handle);
517
518
519	        txdl_priv->align_vaddr = NULL;
520	    }
521 }
522
523xge_hal_status_e
524__hal_fifo_dtr_align_alloc_map(xge_hal_channel_h channelh, xge_hal_dtr_h dtrh)
525{
526	    xge_hal_fifo_txdl_priv_t *txdl_priv;
527	xge_hal_fifo_txd_t *txdp = (xge_hal_fifo_txd_t *)dtrh;
528	xge_hal_fifo_t *fifo = (xge_hal_fifo_t *)channelh;
529
530	xge_assert(txdp);
531
532	txdl_priv = __hal_fifo_txdl_priv(txdp);
533
534	/* allocate alignment DMA-buffer */
535	txdl_priv->align_vaddr = (char *)xge_os_dma_malloc(fifo->channel.pdev,
536	            fifo->align_size,
537	            XGE_OS_DMA_CACHELINE_ALIGNED |
538	            XGE_OS_DMA_STREAMING,
539	            &txdl_priv->align_dma_handle,
540	            &txdl_priv->align_dma_acch);
541	if (txdl_priv->align_vaddr == NULL) {
542	    return XGE_HAL_ERR_OUT_OF_MEMORY;
543	}
544
545	/* map it */
546	txdl_priv->align_dma_addr = xge_os_dma_map(fifo->channel.pdev,
547	    txdl_priv->align_dma_handle, txdl_priv->align_vaddr,
548	    fifo->align_size,
549	    XGE_OS_DMA_DIR_TODEVICE, XGE_OS_DMA_STREAMING);
550
551	if (txdl_priv->align_dma_addr == XGE_OS_INVALID_DMA_ADDR) {
552	            __hal_fifo_dtr_align_free_unmap(channelh, dtrh);
553	    return XGE_HAL_ERR_OUT_OF_MAPPING;
554	}
555
556	return XGE_HAL_OK;
557}
558#endif
559
560
561