Commit | Line | Data |
---|---|---|
3d396eb1 | 1 | /* |
5d242f1c | 2 | * Copyright (C) 2003 - 2009 NetXen, Inc. |
3d396eb1 | 3 | * All rights reserved. |
80922fbc | 4 | * |
3d396eb1 AK |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
80922fbc | 9 | * |
3d396eb1 AK |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
80922fbc | 14 | * |
3d396eb1 AK |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | * MA 02111-1307, USA. | |
80922fbc | 19 | * |
3d396eb1 AK |
20 | * The full GNU General Public License is included in this distribution |
21 | * in the file called LICENSE. | |
80922fbc | 22 | * |
3d396eb1 AK |
23 | * Contact Information: |
24 | * info@netxen.com | |
5d242f1c DP |
25 | * NetXen Inc, |
26 | * 18922 Forge Drive | |
27 | * Cupertino, CA 95014-0701 | |
3d396eb1 AK |
28 | * |
29 | */ | |
30 | ||
31 | #include <linux/netdevice.h> | |
32 | #include <linux/delay.h> | |
33 | #include "netxen_nic.h" | |
34 | #include "netxen_nic_hw.h" | |
3d396eb1 AK |
35 | |
36 | struct crb_addr_pair { | |
e0e20a1a LCMT |
37 | u32 addr; |
38 | u32 data; | |
3d396eb1 AK |
39 | }; |
40 | ||
41 | #define NETXEN_MAX_CRB_XFORM 60 | |
42 | static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; | |
e0e20a1a | 43 | #define NETXEN_ADDR_ERROR (0xffffffff) |
3d396eb1 AK |
44 | |
45 | #define crb_addr_transform(name) \ | |
46 | crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \ | |
47 | NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20 | |
48 | ||
cb8011ad AK |
49 | #define NETXEN_NIC_XDMA_RESET 0x8000ff |
50 | ||
becf46a0 | 51 | static void |
d8b100c5 DP |
52 | netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
53 | struct nx_host_rds_ring *rds_ring); | |
993fb90c | 54 | |
3d396eb1 AK |
55 | static void crb_addr_transform_setup(void) |
56 | { | |
57 | crb_addr_transform(XDMA); | |
58 | crb_addr_transform(TIMR); | |
59 | crb_addr_transform(SRE); | |
60 | crb_addr_transform(SQN3); | |
61 | crb_addr_transform(SQN2); | |
62 | crb_addr_transform(SQN1); | |
63 | crb_addr_transform(SQN0); | |
64 | crb_addr_transform(SQS3); | |
65 | crb_addr_transform(SQS2); | |
66 | crb_addr_transform(SQS1); | |
67 | crb_addr_transform(SQS0); | |
68 | crb_addr_transform(RPMX7); | |
69 | crb_addr_transform(RPMX6); | |
70 | crb_addr_transform(RPMX5); | |
71 | crb_addr_transform(RPMX4); | |
72 | crb_addr_transform(RPMX3); | |
73 | crb_addr_transform(RPMX2); | |
74 | crb_addr_transform(RPMX1); | |
75 | crb_addr_transform(RPMX0); | |
76 | crb_addr_transform(ROMUSB); | |
77 | crb_addr_transform(SN); | |
78 | crb_addr_transform(QMN); | |
79 | crb_addr_transform(QMS); | |
80 | crb_addr_transform(PGNI); | |
81 | crb_addr_transform(PGND); | |
82 | crb_addr_transform(PGN3); | |
83 | crb_addr_transform(PGN2); | |
84 | crb_addr_transform(PGN1); | |
85 | crb_addr_transform(PGN0); | |
86 | crb_addr_transform(PGSI); | |
87 | crb_addr_transform(PGSD); | |
88 | crb_addr_transform(PGS3); | |
89 | crb_addr_transform(PGS2); | |
90 | crb_addr_transform(PGS1); | |
91 | crb_addr_transform(PGS0); | |
92 | crb_addr_transform(PS); | |
93 | crb_addr_transform(PH); | |
94 | crb_addr_transform(NIU); | |
95 | crb_addr_transform(I2Q); | |
96 | crb_addr_transform(EG); | |
97 | crb_addr_transform(MN); | |
98 | crb_addr_transform(MS); | |
99 | crb_addr_transform(CAS2); | |
100 | crb_addr_transform(CAS1); | |
101 | crb_addr_transform(CAS0); | |
102 | crb_addr_transform(CAM); | |
103 | crb_addr_transform(C2C1); | |
104 | crb_addr_transform(C2C0); | |
1fcca1a5 | 105 | crb_addr_transform(SMB); |
e4c93c81 DP |
106 | crb_addr_transform(OCM0); |
107 | crb_addr_transform(I2C0); | |
3d396eb1 AK |
108 | } |
109 | ||
2956640d | 110 | void netxen_release_rx_buffers(struct netxen_adapter *adapter) |
3d396eb1 | 111 | { |
2956640d | 112 | struct netxen_recv_context *recv_ctx; |
48bfd1e0 | 113 | struct nx_host_rds_ring *rds_ring; |
2956640d | 114 | struct netxen_rx_buffer *rx_buf; |
becf46a0 DP |
115 | int i, ring; |
116 | ||
117 | recv_ctx = &adapter->recv_ctx; | |
118 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
119 | rds_ring = &recv_ctx->rds_rings[ring]; | |
438627c7 | 120 | for (i = 0; i < rds_ring->num_desc; ++i) { |
becf46a0 DP |
121 | rx_buf = &(rds_ring->rx_buf_arr[i]); |
122 | if (rx_buf->state == NETXEN_BUFFER_FREE) | |
123 | continue; | |
124 | pci_unmap_single(adapter->pdev, | |
125 | rx_buf->dma, | |
126 | rds_ring->dma_size, | |
127 | PCI_DMA_FROMDEVICE); | |
128 | if (rx_buf->skb != NULL) | |
129 | dev_kfree_skb_any(rx_buf->skb); | |
2956640d DP |
130 | } |
131 | } | |
132 | } | |
133 | ||
134 | void netxen_release_tx_buffers(struct netxen_adapter *adapter) | |
135 | { | |
136 | struct netxen_cmd_buffer *cmd_buf; | |
137 | struct netxen_skb_frag *buffrag; | |
138 | int i, j; | |
4ea528a1 | 139 | struct nx_host_tx_ring *tx_ring = adapter->tx_ring; |
2956640d | 140 | |
d877f1e3 DP |
141 | cmd_buf = tx_ring->cmd_buf_arr; |
142 | for (i = 0; i < tx_ring->num_desc; i++) { | |
2956640d DP |
143 | buffrag = cmd_buf->frag_array; |
144 | if (buffrag->dma) { | |
145 | pci_unmap_single(adapter->pdev, buffrag->dma, | |
146 | buffrag->length, PCI_DMA_TODEVICE); | |
147 | buffrag->dma = 0ULL; | |
148 | } | |
149 | for (j = 0; j < cmd_buf->frag_count; j++) { | |
150 | buffrag++; | |
151 | if (buffrag->dma) { | |
152 | pci_unmap_page(adapter->pdev, buffrag->dma, | |
153 | buffrag->length, | |
154 | PCI_DMA_TODEVICE); | |
155 | buffrag->dma = 0ULL; | |
156 | } | |
157 | } | |
2956640d DP |
158 | if (cmd_buf->skb) { |
159 | dev_kfree_skb_any(cmd_buf->skb); | |
160 | cmd_buf->skb = NULL; | |
161 | } | |
162 | cmd_buf++; | |
163 | } | |
164 | } | |
165 | ||
166 | void netxen_free_sw_resources(struct netxen_adapter *adapter) | |
167 | { | |
168 | struct netxen_recv_context *recv_ctx; | |
48bfd1e0 | 169 | struct nx_host_rds_ring *rds_ring; |
d877f1e3 | 170 | struct nx_host_tx_ring *tx_ring; |
becf46a0 DP |
171 | int ring; |
172 | ||
173 | recv_ctx = &adapter->recv_ctx; | |
4ea528a1 DP |
174 | |
175 | if (recv_ctx->rds_rings == NULL) | |
176 | goto skip_rds; | |
177 | ||
becf46a0 DP |
178 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
179 | rds_ring = &recv_ctx->rds_rings[ring]; | |
f2333a01 F |
180 | vfree(rds_ring->rx_buf_arr); |
181 | rds_ring->rx_buf_arr = NULL; | |
2956640d | 182 | } |
4ea528a1 DP |
183 | kfree(recv_ctx->rds_rings); |
184 | ||
185 | skip_rds: | |
186 | if (adapter->tx_ring == NULL) | |
187 | return; | |
becf46a0 | 188 | |
4ea528a1 | 189 | tx_ring = adapter->tx_ring; |
f2333a01 | 190 | vfree(tx_ring->cmd_buf_arr); |
2956640d DP |
191 | } |
192 | ||
193 | int netxen_alloc_sw_resources(struct netxen_adapter *adapter) | |
194 | { | |
195 | struct netxen_recv_context *recv_ctx; | |
48bfd1e0 | 196 | struct nx_host_rds_ring *rds_ring; |
d8b100c5 | 197 | struct nx_host_sds_ring *sds_ring; |
4ea528a1 | 198 | struct nx_host_tx_ring *tx_ring; |
2956640d | 199 | struct netxen_rx_buffer *rx_buf; |
4ea528a1 | 200 | int ring, i, size; |
2956640d DP |
201 | |
202 | struct netxen_cmd_buffer *cmd_buf_arr; | |
203 | struct net_device *netdev = adapter->netdev; | |
d877f1e3 | 204 | struct pci_dev *pdev = adapter->pdev; |
2956640d | 205 | |
4ea528a1 DP |
206 | size = sizeof(struct nx_host_tx_ring); |
207 | tx_ring = kzalloc(size, GFP_KERNEL); | |
208 | if (tx_ring == NULL) { | |
209 | dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n", | |
210 | netdev->name); | |
211 | return -ENOMEM; | |
212 | } | |
213 | adapter->tx_ring = tx_ring; | |
214 | ||
d877f1e3 | 215 | tx_ring->num_desc = adapter->num_txd; |
b2af9cb0 | 216 | tx_ring->txq = netdev_get_tx_queue(netdev, 0); |
4ea528a1 DP |
217 | |
218 | cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring)); | |
2956640d | 219 | if (cmd_buf_arr == NULL) { |
d877f1e3 | 220 | dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n", |
2956640d DP |
221 | netdev->name); |
222 | return -ENOMEM; | |
223 | } | |
d877f1e3 DP |
224 | memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring)); |
225 | tx_ring->cmd_buf_arr = cmd_buf_arr; | |
2956640d | 226 | |
becf46a0 | 227 | recv_ctx = &adapter->recv_ctx; |
4ea528a1 DP |
228 | |
229 | size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring); | |
230 | rds_ring = kzalloc(size, GFP_KERNEL); | |
231 | if (rds_ring == NULL) { | |
232 | dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n", | |
233 | netdev->name); | |
234 | return -ENOMEM; | |
235 | } | |
236 | recv_ctx->rds_rings = rds_ring; | |
237 | ||
becf46a0 DP |
238 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
239 | rds_ring = &recv_ctx->rds_rings[ring]; | |
438627c7 DP |
240 | switch (ring) { |
241 | case RCV_RING_NORMAL: | |
242 | rds_ring->num_desc = adapter->num_rxd; | |
becf46a0 DP |
243 | if (adapter->ahw.cut_through) { |
244 | rds_ring->dma_size = | |
245 | NX_CT_DEFAULT_RX_BUF_LEN; | |
48bfd1e0 | 246 | rds_ring->skb_size = |
becf46a0 DP |
247 | NX_CT_DEFAULT_RX_BUF_LEN; |
248 | } else { | |
9b08beba DP |
249 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
250 | rds_ring->dma_size = | |
251 | NX_P3_RX_BUF_MAX_LEN; | |
252 | else | |
253 | rds_ring->dma_size = | |
254 | NX_P2_RX_BUF_MAX_LEN; | |
becf46a0 | 255 | rds_ring->skb_size = |
9b08beba | 256 | rds_ring->dma_size + NET_IP_ALIGN; |
becf46a0 DP |
257 | } |
258 | break; | |
2956640d | 259 | |
438627c7 DP |
260 | case RCV_RING_JUMBO: |
261 | rds_ring->num_desc = adapter->num_jumbo_rxd; | |
becf46a0 DP |
262 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
263 | rds_ring->dma_size = | |
264 | NX_P3_RX_JUMBO_BUF_MAX_LEN; | |
265 | else | |
266 | rds_ring->dma_size = | |
267 | NX_P2_RX_JUMBO_BUF_MAX_LEN; | |
268 | rds_ring->skb_size = | |
269 | rds_ring->dma_size + NET_IP_ALIGN; | |
270 | break; | |
2956640d | 271 | |
becf46a0 | 272 | case RCV_RING_LRO: |
438627c7 | 273 | rds_ring->num_desc = adapter->num_lro_rxd; |
9b08beba DP |
274 | rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH; |
275 | rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN; | |
becf46a0 DP |
276 | break; |
277 | ||
278 | } | |
279 | rds_ring->rx_buf_arr = (struct netxen_rx_buffer *) | |
d8b100c5 | 280 | vmalloc(RCV_BUFF_RINGSIZE(rds_ring)); |
becf46a0 DP |
281 | if (rds_ring->rx_buf_arr == NULL) { |
282 | printk(KERN_ERR "%s: Failed to allocate " | |
283 | "rx buffer ring %d\n", | |
284 | netdev->name, ring); | |
285 | /* free whatever was already allocated */ | |
286 | goto err_out; | |
287 | } | |
d8b100c5 | 288 | memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring)); |
becf46a0 DP |
289 | INIT_LIST_HEAD(&rds_ring->free_list); |
290 | /* | |
291 | * Now go through all of them, set reference handles | |
292 | * and put them in the queues. | |
293 | */ | |
becf46a0 | 294 | rx_buf = rds_ring->rx_buf_arr; |
4ea528a1 | 295 | for (i = 0; i < rds_ring->num_desc; i++) { |
becf46a0 DP |
296 | list_add_tail(&rx_buf->list, |
297 | &rds_ring->free_list); | |
298 | rx_buf->ref_handle = i; | |
299 | rx_buf->state = NETXEN_BUFFER_FREE; | |
300 | rx_buf++; | |
3d396eb1 | 301 | } |
d8b100c5 DP |
302 | spin_lock_init(&rds_ring->lock); |
303 | } | |
304 | ||
305 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
306 | sds_ring = &recv_ctx->sds_rings[ring]; | |
307 | sds_ring->irq = adapter->msix_entries[ring].vector; | |
d8b100c5 DP |
308 | sds_ring->adapter = adapter; |
309 | sds_ring->num_desc = adapter->num_rxd; | |
310 | ||
311 | for (i = 0; i < NUM_RCV_DESC_RINGS; i++) | |
312 | INIT_LIST_HEAD(&sds_ring->free_list[i]); | |
3d396eb1 | 313 | } |
2956640d DP |
314 | |
315 | return 0; | |
316 | ||
317 | err_out: | |
318 | netxen_free_sw_resources(adapter); | |
319 | return -ENOMEM; | |
3d396eb1 AK |
320 | } |
321 | ||
3d396eb1 AK |
322 | void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) |
323 | { | |
cb7e4b6e DP |
324 | adapter->init_port = netxen_niu_xg_init_port; |
325 | adapter->stop_port = netxen_niu_disable_xg_port; | |
326 | ||
327 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
328 | adapter->macaddr_set = netxen_p2_nic_set_mac_addr; | |
329 | adapter->set_multi = netxen_p2_nic_set_multi; | |
80922fbc | 330 | adapter->set_mtu = netxen_nic_set_mtu_xgb; |
3ad4467c | 331 | adapter->set_promisc = netxen_p2_nic_set_promisc; |
cb7e4b6e | 332 | } else { |
9ad27643 DP |
333 | adapter->set_mtu = nx_fw_cmd_set_mtu; |
334 | adapter->set_promisc = netxen_p3_nic_set_promisc; | |
3d0a3cc9 DP |
335 | adapter->macaddr_set = netxen_p3_nic_set_mac_addr; |
336 | adapter->set_multi = netxen_p3_nic_set_multi; | |
cb7e4b6e | 337 | |
3ad4467c DP |
338 | if (adapter->ahw.port_type == NETXEN_NIC_GBE) { |
339 | adapter->phy_read = nx_fw_cmd_query_phy; | |
340 | adapter->phy_write = nx_fw_cmd_set_phy; | |
341 | } | |
cb7e4b6e | 342 | } |
3d396eb1 AK |
343 | } |
344 | ||
345 | /* | |
346 | * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB | |
347 | * address to external PCI CRB address. | |
348 | */ | |
993fb90c | 349 | static u32 netxen_decode_crb_addr(u32 addr) |
3d396eb1 AK |
350 | { |
351 | int i; | |
e0e20a1a | 352 | u32 base_addr, offset, pci_base; |
3d396eb1 AK |
353 | |
354 | crb_addr_transform_setup(); | |
355 | ||
356 | pci_base = NETXEN_ADDR_ERROR; | |
357 | base_addr = addr & 0xfff00000; | |
358 | offset = addr & 0x000fffff; | |
359 | ||
360 | for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { | |
361 | if (crb_addr_xform[i] == base_addr) { | |
362 | pci_base = i << 20; | |
363 | break; | |
364 | } | |
365 | } | |
366 | if (pci_base == NETXEN_ADDR_ERROR) | |
367 | return pci_base; | |
368 | else | |
369 | return (pci_base + offset); | |
370 | } | |
371 | ||
c9517e58 | 372 | #define NETXEN_MAX_ROM_WAIT_USEC 100 |
3d396eb1 | 373 | |
993fb90c | 374 | static int netxen_wait_rom_done(struct netxen_adapter *adapter) |
3d396eb1 AK |
375 | { |
376 | long timeout = 0; | |
377 | long done = 0; | |
378 | ||
27c915a4 DP |
379 | cond_resched(); |
380 | ||
3d396eb1 | 381 | while (done == 0) { |
f98a9f69 | 382 | done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS); |
3d396eb1 | 383 | done &= 2; |
c9517e58 DP |
384 | if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) { |
385 | dev_err(&adapter->pdev->dev, | |
386 | "Timeout reached waiting for rom done"); | |
3d396eb1 AK |
387 | return -EIO; |
388 | } | |
c9517e58 | 389 | udelay(1); |
3d396eb1 AK |
390 | } |
391 | return 0; | |
392 | } | |
393 | ||
993fb90c AB |
394 | static int do_rom_fast_read(struct netxen_adapter *adapter, |
395 | int addr, int *valp) | |
3d396eb1 | 396 | { |
f98a9f69 DP |
397 | NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
398 | NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); | |
399 | NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); | |
400 | NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); | |
3d396eb1 AK |
401 | if (netxen_wait_rom_done(adapter)) { |
402 | printk("Error waiting for rom done\n"); | |
403 | return -EIO; | |
404 | } | |
405 | /* reset abyte_cnt and dummy_byte_cnt */ | |
f98a9f69 | 406 | NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
27c915a4 | 407 | udelay(10); |
f98a9f69 | 408 | NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
3d396eb1 | 409 | |
f98a9f69 | 410 | *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA); |
3d396eb1 AK |
411 | return 0; |
412 | } | |
413 | ||
993fb90c AB |
414 | static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
415 | u8 *bytes, size_t size) | |
27d2ab54 AK |
416 | { |
417 | int addridx; | |
418 | int ret = 0; | |
419 | ||
420 | for (addridx = addr; addridx < (addr + size); addridx += 4) { | |
f305f789 AV |
421 | int v; |
422 | ret = do_rom_fast_read(adapter, addridx, &v); | |
27d2ab54 AK |
423 | if (ret != 0) |
424 | break; | |
f305f789 | 425 | *(__le32 *)bytes = cpu_to_le32(v); |
27d2ab54 AK |
426 | bytes += 4; |
427 | } | |
428 | ||
429 | return ret; | |
430 | } | |
431 | ||
432 | int | |
4790654c | 433 | netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
27d2ab54 AK |
434 | u8 *bytes, size_t size) |
435 | { | |
436 | int ret; | |
437 | ||
c9517e58 | 438 | ret = netxen_rom_lock(adapter); |
27d2ab54 AK |
439 | if (ret < 0) |
440 | return ret; | |
441 | ||
442 | ret = do_rom_fast_read_words(adapter, addr, bytes, size); | |
443 | ||
444 | netxen_rom_unlock(adapter); | |
445 | return ret; | |
446 | } | |
447 | ||
3d396eb1 AK |
448 | int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) |
449 | { | |
450 | int ret; | |
451 | ||
c9517e58 | 452 | if (netxen_rom_lock(adapter) != 0) |
3d396eb1 AK |
453 | return -EIO; |
454 | ||
455 | ret = do_rom_fast_read(adapter, addr, valp); | |
cb8011ad AK |
456 | netxen_rom_unlock(adapter); |
457 | return ret; | |
458 | } | |
459 | ||
3d396eb1 AK |
460 | #define NETXEN_BOARDTYPE 0x4008 |
461 | #define NETXEN_BOARDNUM 0x400c | |
462 | #define NETXEN_CHIPNUM 0x4010 | |
3d396eb1 AK |
463 | |
464 | int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) | |
465 | { | |
dcd56fdb | 466 | int addr, val; |
27c915a4 | 467 | int i, n, init_delay = 0; |
3d396eb1 | 468 | struct crb_addr_pair *buf; |
27c915a4 | 469 | unsigned offset; |
e0e20a1a | 470 | u32 off; |
3d396eb1 AK |
471 | |
472 | /* resetall */ | |
c9517e58 | 473 | netxen_rom_lock(adapter); |
f98a9f69 | 474 | NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff); |
27c915a4 | 475 | netxen_rom_unlock(adapter); |
3d396eb1 AK |
476 | |
477 | if (verbose) { | |
3d396eb1 AK |
478 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) |
479 | printk("P2 ROM board type: 0x%08x\n", val); | |
480 | else | |
481 | printk("Could not read board type\n"); | |
482 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) | |
483 | printk("P2 ROM board num: 0x%08x\n", val); | |
484 | else | |
485 | printk("Could not read board number\n"); | |
486 | if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) | |
487 | printk("P2 ROM chip num: 0x%08x\n", val); | |
488 | else | |
489 | printk("Could not read chip number\n"); | |
490 | } | |
491 | ||
2956640d DP |
492 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
493 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || | |
27c915a4 | 494 | (n != 0xcafecafe) || |
2956640d DP |
495 | netxen_rom_fast_read(adapter, 4, &n) != 0) { |
496 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " | |
497 | "n: %08x\n", netxen_nic_driver_name, n); | |
3d396eb1 AK |
498 | return -EIO; |
499 | } | |
2956640d DP |
500 | offset = n & 0xffffU; |
501 | n = (n >> 16) & 0xffffU; | |
502 | } else { | |
503 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || | |
504 | !(n & 0x80000000)) { | |
505 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " | |
506 | "n: %08x\n", netxen_nic_driver_name, n); | |
507 | return -EIO; | |
3d396eb1 | 508 | } |
2956640d DP |
509 | offset = 1; |
510 | n &= ~0x80000000; | |
511 | } | |
512 | ||
513 | if (n < 1024) { | |
514 | if (verbose) | |
515 | printk(KERN_DEBUG "%s: %d CRB init values found" | |
516 | " in ROM.\n", netxen_nic_driver_name, n); | |
517 | } else { | |
518 | printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not" | |
519 | " initialized.\n", __func__, n); | |
520 | return -EIO; | |
521 | } | |
3d396eb1 | 522 | |
2956640d DP |
523 | buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); |
524 | if (buf == NULL) { | |
525 | printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n", | |
526 | netxen_nic_driver_name); | |
527 | return -ENOMEM; | |
528 | } | |
529 | for (i = 0; i < n; i++) { | |
530 | if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 || | |
584dbe94 DM |
531 | netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) { |
532 | kfree(buf); | |
2956640d | 533 | return -EIO; |
584dbe94 | 534 | } |
2956640d DP |
535 | |
536 | buf[i].addr = addr; | |
537 | buf[i].data = val; | |
538 | ||
539 | if (verbose) | |
540 | printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n", | |
541 | netxen_nic_driver_name, | |
542 | (u32)netxen_decode_crb_addr(addr), val); | |
543 | } | |
544 | for (i = 0; i < n; i++) { | |
545 | ||
546 | off = netxen_decode_crb_addr(buf[i].addr); | |
547 | if (off == NETXEN_ADDR_ERROR) { | |
548 | printk(KERN_ERR"CRB init value out of range %x\n", | |
1fcca1a5 | 549 | buf[i].addr); |
2956640d DP |
550 | continue; |
551 | } | |
552 | off += NETXEN_PCI_CRBSPACE; | |
553 | /* skipping cold reboot MAGIC */ | |
554 | if (off == NETXEN_CAM_RAM(0x1fc)) | |
555 | continue; | |
556 | ||
557 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { | |
558 | /* do not reset PCI */ | |
559 | if (off == (ROMUSB_GLB + 0xbc)) | |
1fcca1a5 | 560 | continue; |
27c915a4 DP |
561 | if (off == (ROMUSB_GLB + 0xa8)) |
562 | continue; | |
563 | if (off == (ROMUSB_GLB + 0xc8)) /* core clock */ | |
564 | continue; | |
565 | if (off == (ROMUSB_GLB + 0x24)) /* MN clock */ | |
566 | continue; | |
567 | if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */ | |
568 | continue; | |
2956640d DP |
569 | if (off == (NETXEN_CRB_PEG_NET_1 + 0x18)) |
570 | buf[i].data = 0x1020; | |
571 | /* skip the function enable register */ | |
572 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION)) | |
3d396eb1 | 573 | continue; |
2956640d DP |
574 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2)) |
575 | continue; | |
576 | if ((off & 0x0ff00000) == NETXEN_CRB_SMB) | |
577 | continue; | |
578 | } | |
3d396eb1 | 579 | |
2956640d DP |
580 | if (off == NETXEN_ADDR_ERROR) { |
581 | printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n", | |
582 | netxen_nic_driver_name, buf[i].addr); | |
583 | continue; | |
584 | } | |
585 | ||
27c915a4 | 586 | init_delay = 1; |
2956640d DP |
587 | /* After writing this register, HW needs time for CRB */ |
588 | /* to quiet down (else crb_window returns 0xffffffff) */ | |
589 | if (off == NETXEN_ROMUSB_GLB_SW_RESET) { | |
27c915a4 | 590 | init_delay = 1000; |
2956640d | 591 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
3d396eb1 | 592 | /* hold xdma in reset also */ |
cb8011ad | 593 | buf[i].data = NETXEN_NIC_XDMA_RESET; |
27c915a4 | 594 | buf[i].data = 0x8000ff; |
3d396eb1 | 595 | } |
2956640d | 596 | } |
3d396eb1 | 597 | |
f98a9f69 | 598 | NXWR32(adapter, off, buf[i].data); |
3d396eb1 | 599 | |
27c915a4 | 600 | msleep(init_delay); |
2956640d DP |
601 | } |
602 | kfree(buf); | |
3d396eb1 | 603 | |
2956640d | 604 | /* disable_peg_cache_all */ |
3d396eb1 | 605 | |
2956640d DP |
606 | /* unreset_net_cache */ |
607 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
f98a9f69 DP |
608 | val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); |
609 | NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f)); | |
3d396eb1 | 610 | } |
2956640d DP |
611 | |
612 | /* p2dn replyCount */ | |
f98a9f69 | 613 | NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); |
2956640d | 614 | /* disable_peg_cache 0 */ |
f98a9f69 | 615 | NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8); |
2956640d | 616 | /* disable_peg_cache 1 */ |
f98a9f69 | 617 | NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8); |
2956640d DP |
618 | |
619 | /* peg_clr_all */ | |
620 | ||
621 | /* peg_clr 0 */ | |
f98a9f69 DP |
622 | NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0); |
623 | NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0); | |
2956640d | 624 | /* peg_clr 1 */ |
f98a9f69 DP |
625 | NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0); |
626 | NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0); | |
2956640d | 627 | /* peg_clr 2 */ |
f98a9f69 DP |
628 | NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0); |
629 | NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0); | |
2956640d | 630 | /* peg_clr 3 */ |
f98a9f69 DP |
631 | NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0); |
632 | NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0); | |
3d396eb1 AK |
633 | return 0; |
634 | } | |
635 | ||
67c38fc6 DP |
636 | int |
637 | netxen_need_fw_reset(struct netxen_adapter *adapter) | |
638 | { | |
639 | u32 count, old_count; | |
640 | u32 val, version, major, minor, build; | |
641 | int i, timeout; | |
642 | u8 fw_type; | |
643 | ||
644 | /* NX2031 firmware doesn't support heartbit */ | |
645 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
646 | return 1; | |
647 | ||
648 | /* last attempt had failed */ | |
649 | if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED) | |
650 | return 1; | |
651 | ||
652 | old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); | |
653 | ||
654 | for (i = 0; i < 10; i++) { | |
655 | ||
656 | timeout = msleep_interruptible(200); | |
657 | if (timeout) { | |
658 | NXWR32(adapter, CRB_CMDPEG_STATE, | |
659 | PHAN_INITIALIZE_FAILED); | |
660 | return -EINTR; | |
661 | } | |
662 | ||
663 | count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); | |
664 | if (count != old_count) | |
665 | break; | |
666 | } | |
667 | ||
668 | /* firmware is dead */ | |
669 | if (count == old_count) | |
670 | return 1; | |
671 | ||
672 | /* check if we have got newer or different file firmware */ | |
673 | if (adapter->fw) { | |
674 | ||
675 | const struct firmware *fw = adapter->fw; | |
676 | ||
677 | val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]); | |
678 | version = NETXEN_DECODE_VERSION(val); | |
679 | ||
680 | major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); | |
681 | minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); | |
682 | build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); | |
683 | ||
684 | if (version > NETXEN_VERSION_CODE(major, minor, build)) | |
685 | return 1; | |
686 | ||
687 | if (version == NETXEN_VERSION_CODE(major, minor, build)) { | |
688 | ||
689 | val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL); | |
690 | fw_type = (val & 0x4) ? | |
691 | NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE; | |
692 | ||
693 | if (adapter->fw_type != fw_type) | |
694 | return 1; | |
695 | } | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static char *fw_name[] = { | |
702 | "nxromimg.bin", "nx3fwct.bin", "nx3fwmn.bin", "flash", | |
703 | }; | |
704 | ||
f7185c71 DP |
705 | int |
706 | netxen_load_firmware(struct netxen_adapter *adapter) | |
707 | { | |
708 | u64 *ptr64; | |
709 | u32 i, flashaddr, size; | |
710 | const struct firmware *fw = adapter->fw; | |
67c38fc6 DP |
711 | struct pci_dev *pdev = adapter->pdev; |
712 | ||
713 | dev_info(&pdev->dev, "loading firmware from %s\n", | |
714 | fw_name[adapter->fw_type]); | |
f7185c71 DP |
715 | |
716 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
717 | NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1); | |
718 | ||
719 | if (fw) { | |
720 | __le64 data; | |
721 | ||
722 | size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8; | |
723 | ||
724 | ptr64 = (u64 *)&fw->data[NETXEN_BOOTLD_START]; | |
725 | flashaddr = NETXEN_BOOTLD_START; | |
726 | ||
727 | for (i = 0; i < size; i++) { | |
728 | data = cpu_to_le64(ptr64[i]); | |
729 | adapter->pci_mem_write(adapter, flashaddr, &data, 8); | |
730 | flashaddr += 8; | |
731 | } | |
732 | ||
733 | size = *(u32 *)&fw->data[NX_FW_SIZE_OFFSET]; | |
734 | size = (__force u32)cpu_to_le32(size) / 8; | |
735 | ||
736 | ptr64 = (u64 *)&fw->data[NETXEN_IMAGE_START]; | |
737 | flashaddr = NETXEN_IMAGE_START; | |
738 | ||
739 | for (i = 0; i < size; i++) { | |
740 | data = cpu_to_le64(ptr64[i]); | |
741 | ||
742 | if (adapter->pci_mem_write(adapter, | |
743 | flashaddr, &data, 8)) | |
744 | return -EIO; | |
745 | ||
746 | flashaddr += 8; | |
747 | } | |
748 | } else { | |
749 | u32 data; | |
750 | ||
751 | size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 4; | |
752 | flashaddr = NETXEN_BOOTLD_START; | |
753 | ||
754 | for (i = 0; i < size; i++) { | |
755 | if (netxen_rom_fast_read(adapter, | |
756 | flashaddr, (int *)&data) != 0) | |
757 | return -EIO; | |
758 | ||
759 | if (adapter->pci_mem_write(adapter, | |
760 | flashaddr, &data, 4)) | |
761 | return -EIO; | |
762 | ||
763 | flashaddr += 4; | |
764 | } | |
765 | } | |
766 | msleep(1); | |
767 | ||
768 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
769 | NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d); | |
770 | else { | |
771 | NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff); | |
772 | NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0); | |
773 | } | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | static int | |
779 | netxen_validate_firmware(struct netxen_adapter *adapter, const char *fwname) | |
780 | { | |
781 | __le32 val; | |
98e31bb0 | 782 | u32 ver, min_ver, bios; |
f7185c71 DP |
783 | struct pci_dev *pdev = adapter->pdev; |
784 | const struct firmware *fw = adapter->fw; | |
785 | ||
786 | if (fw->size < NX_FW_MIN_SIZE) | |
787 | return -EINVAL; | |
788 | ||
789 | val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]); | |
790 | if ((__force u32)val != NETXEN_BDINFO_MAGIC) | |
791 | return -EINVAL; | |
792 | ||
793 | val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]); | |
f7185c71 DP |
794 | |
795 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) | |
796 | min_ver = NETXEN_VERSION_CODE(4, 0, 216); | |
797 | else | |
798 | min_ver = NETXEN_VERSION_CODE(3, 4, 216); | |
799 | ||
98e31bb0 | 800 | ver = NETXEN_DECODE_VERSION(val); |
f7185c71 | 801 | |
98e31bb0 | 802 | if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) { |
f7185c71 DP |
803 | dev_err(&pdev->dev, |
804 | "%s: firmware version %d.%d.%d unsupported\n", | |
98e31bb0 | 805 | fwname, _major(ver), _minor(ver), _build(ver)); |
f7185c71 DP |
806 | return -EINVAL; |
807 | } | |
808 | ||
809 | val = cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]); | |
810 | netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios); | |
811 | if ((__force u32)val != bios) { | |
812 | dev_err(&pdev->dev, "%s: firmware bios is incompatible\n", | |
813 | fwname); | |
814 | return -EINVAL; | |
815 | } | |
816 | ||
817 | /* check if flashed firmware is newer */ | |
818 | if (netxen_rom_fast_read(adapter, | |
819 | NX_FW_VERSION_OFFSET, (int *)&val)) | |
820 | return -EIO; | |
98e31bb0 DP |
821 | val = NETXEN_DECODE_VERSION(val); |
822 | if (val > ver) { | |
823 | dev_info(&pdev->dev, "%s: firmware is older than flash\n", | |
824 | fwname); | |
f7185c71 | 825 | return -EINVAL; |
98e31bb0 | 826 | } |
f7185c71 DP |
827 | |
828 | NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); | |
829 | return 0; | |
830 | } | |
831 | ||
6598b169 DP |
832 | static int |
833 | netxen_p3_has_mn(struct netxen_adapter *adapter) | |
f7185c71 DP |
834 | { |
835 | u32 capability, flashed_ver; | |
f7185c71 DP |
836 | capability = 0; |
837 | ||
838 | netxen_rom_fast_read(adapter, | |
839 | NX_FW_VERSION_OFFSET, (int *)&flashed_ver); | |
98e31bb0 DP |
840 | flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); |
841 | ||
f7185c71 | 842 | if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) { |
6598b169 | 843 | |
f7185c71 | 844 | capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY); |
6598b169 DP |
845 | if (capability & NX_PEG_TUNE_MN_PRESENT) |
846 | return 1; | |
847 | } | |
848 | return 0; | |
849 | } | |
850 | ||
851 | void netxen_request_firmware(struct netxen_adapter *adapter) | |
852 | { | |
853 | u8 fw_type; | |
854 | struct pci_dev *pdev = adapter->pdev; | |
855 | int rc = 0; | |
856 | ||
857 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { | |
858 | fw_type = NX_P2_MN_ROMIMAGE; | |
859 | goto request_fw; | |
f7185c71 DP |
860 | } |
861 | ||
6598b169 DP |
862 | fw_type = netxen_p3_has_mn(adapter) ? |
863 | NX_P3_MN_ROMIMAGE : NX_P3_CT_ROMIMAGE; | |
98e31bb0 | 864 | |
f7185c71 DP |
865 | request_fw: |
866 | rc = request_firmware(&adapter->fw, fw_name[fw_type], &pdev->dev); | |
867 | if (rc != 0) { | |
6598b169 | 868 | if (fw_type == NX_P3_MN_ROMIMAGE) { |
f7185c71 | 869 | msleep(1); |
6598b169 DP |
870 | fw_type = NX_P3_CT_ROMIMAGE; |
871 | goto request_fw; | |
f7185c71 DP |
872 | } |
873 | ||
67c38fc6 | 874 | fw_type = NX_FLASH_ROMIMAGE; |
f7185c71 DP |
875 | adapter->fw = NULL; |
876 | goto done; | |
877 | } | |
878 | ||
879 | rc = netxen_validate_firmware(adapter, fw_name[fw_type]); | |
880 | if (rc != 0) { | |
881 | release_firmware(adapter->fw); | |
882 | ||
6598b169 | 883 | if (fw_type == NX_P3_MN_ROMIMAGE) { |
f7185c71 | 884 | msleep(1); |
6598b169 DP |
885 | fw_type = NX_P3_CT_ROMIMAGE; |
886 | goto request_fw; | |
f7185c71 DP |
887 | } |
888 | ||
67c38fc6 | 889 | fw_type = NX_FLASH_ROMIMAGE; |
f7185c71 DP |
890 | adapter->fw = NULL; |
891 | goto done; | |
892 | } | |
893 | ||
894 | done: | |
67c38fc6 | 895 | adapter->fw_type = fw_type; |
f7185c71 DP |
896 | } |
897 | ||
898 | ||
899 | void | |
900 | netxen_release_firmware(struct netxen_adapter *adapter) | |
901 | { | |
902 | if (adapter->fw) | |
903 | release_firmware(adapter->fw); | |
904 | } | |
905 | ||
83ac51fa | 906 | int netxen_init_dummy_dma(struct netxen_adapter *adapter) |
ed25ffa1 | 907 | { |
83ac51fa DP |
908 | u64 addr; |
909 | u32 hi, lo; | |
ed25ffa1 | 910 | |
83ac51fa DP |
911 | if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
912 | return 0; | |
913 | ||
914 | adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev, | |
ed25ffa1 AK |
915 | NETXEN_HOST_DUMMY_DMA_SIZE, |
916 | &adapter->dummy_dma.phys_addr); | |
917 | if (adapter->dummy_dma.addr == NULL) { | |
83ac51fa DP |
918 | dev_err(&adapter->pdev->dev, |
919 | "ERROR: Could not allocate dummy DMA memory\n"); | |
ed25ffa1 AK |
920 | return -ENOMEM; |
921 | } | |
922 | ||
923 | addr = (uint64_t) adapter->dummy_dma.phys_addr; | |
924 | hi = (addr >> 32) & 0xffffffff; | |
925 | lo = addr & 0xffffffff; | |
926 | ||
f98a9f69 DP |
927 | NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi); |
928 | NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo); | |
ed25ffa1 AK |
929 | |
930 | return 0; | |
931 | } | |
932 | ||
83ac51fa DP |
933 | /* |
934 | * NetXen DMA watchdog control: | |
935 | * | |
936 | * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive | |
937 | * Bit 1 : disable_request => 1 req disable dma watchdog | |
938 | * Bit 2 : enable_request => 1 req enable dma watchdog | |
939 | * Bit 3-31 : unused | |
940 | */ | |
941 | void netxen_free_dummy_dma(struct netxen_adapter *adapter) | |
ed25ffa1 | 942 | { |
15eef1e1 | 943 | int i = 100; |
83ac51fa DP |
944 | u32 ctrl; |
945 | ||
946 | if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) | |
947 | return; | |
15eef1e1 DP |
948 | |
949 | if (!adapter->dummy_dma.addr) | |
950 | return; | |
439b454e | 951 | |
83ac51fa DP |
952 | ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL); |
953 | if ((ctrl & 0x1) != 0) { | |
954 | NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2)); | |
955 | ||
956 | while ((ctrl & 0x1) != 0) { | |
957 | ||
439b454e | 958 | msleep(50); |
83ac51fa DP |
959 | |
960 | ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL); | |
961 | ||
962 | if (--i == 0) | |
439b454e | 963 | break; |
83ac51fa | 964 | }; |
15eef1e1 | 965 | } |
439b454e | 966 | |
15eef1e1 DP |
967 | if (i) { |
968 | pci_free_consistent(adapter->pdev, | |
969 | NETXEN_HOST_DUMMY_DMA_SIZE, | |
970 | adapter->dummy_dma.addr, | |
971 | adapter->dummy_dma.phys_addr); | |
972 | adapter->dummy_dma.addr = NULL; | |
83ac51fa DP |
973 | } else |
974 | dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n"); | |
ed25ffa1 AK |
975 | } |
976 | ||
96acb6eb | 977 | int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) |
3d396eb1 AK |
978 | { |
979 | u32 val = 0; | |
2956640d | 980 | int retries = 60; |
3d396eb1 | 981 | |
96f2ebd2 DP |
982 | if (pegtune_val) |
983 | return 0; | |
984 | ||
985 | do { | |
986 | val = NXRD32(adapter, CRB_CMDPEG_STATE); | |
96acb6eb | 987 | |
96f2ebd2 DP |
988 | switch (val) { |
989 | case PHAN_INITIALIZE_COMPLETE: | |
990 | case PHAN_INITIALIZE_ACK: | |
991 | return 0; | |
992 | case PHAN_INITIALIZE_FAILED: | |
993 | goto out_err; | |
994 | default: | |
995 | break; | |
996 | } | |
96acb6eb | 997 | |
96f2ebd2 | 998 | msleep(500); |
2956640d | 999 | |
96f2ebd2 | 1000 | } while (--retries); |
2956640d | 1001 | |
96f2ebd2 | 1002 | NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED); |
96acb6eb | 1003 | |
96f2ebd2 DP |
1004 | out_err: |
1005 | dev_warn(&adapter->pdev->dev, "firmware init failed\n"); | |
1006 | return -EIO; | |
3d396eb1 AK |
1007 | } |
1008 | ||
56a00787 DP |
1009 | static int |
1010 | netxen_receive_peg_ready(struct netxen_adapter *adapter) | |
2956640d DP |
1011 | { |
1012 | u32 val = 0; | |
1013 | int retries = 2000; | |
1014 | ||
1015 | do { | |
f98a9f69 | 1016 | val = NXRD32(adapter, CRB_RCVPEG_STATE); |
2956640d DP |
1017 | |
1018 | if (val == PHAN_PEG_RCV_INITIALIZED) | |
1019 | return 0; | |
1020 | ||
1021 | msleep(10); | |
1022 | ||
1023 | } while (--retries); | |
1024 | ||
1025 | if (!retries) { | |
1026 | printk(KERN_ERR "Receive Peg initialization not " | |
1027 | "complete, state: 0x%x.\n", val); | |
1028 | return -EIO; | |
1029 | } | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
56a00787 DP |
1034 | int netxen_init_firmware(struct netxen_adapter *adapter) |
1035 | { | |
1036 | int err; | |
1037 | ||
1038 | err = netxen_receive_peg_ready(adapter); | |
1039 | if (err) | |
1040 | return err; | |
1041 | ||
f98a9f69 DP |
1042 | NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); |
1043 | NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC); | |
1044 | NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); | |
1045 | NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); | |
56a00787 DP |
1046 | |
1047 | return err; | |
1048 | } | |
1049 | ||
3bf26ce3 DP |
1050 | static void |
1051 | netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg) | |
1052 | { | |
1053 | u32 cable_OUI; | |
1054 | u16 cable_len; | |
1055 | u16 link_speed; | |
1056 | u8 link_status, module, duplex, autoneg; | |
1057 | struct net_device *netdev = adapter->netdev; | |
1058 | ||
1059 | adapter->has_link_events = 1; | |
1060 | ||
1061 | cable_OUI = msg->body[1] & 0xffffffff; | |
1062 | cable_len = (msg->body[1] >> 32) & 0xffff; | |
1063 | link_speed = (msg->body[1] >> 48) & 0xffff; | |
1064 | ||
1065 | link_status = msg->body[2] & 0xff; | |
1066 | duplex = (msg->body[2] >> 16) & 0xff; | |
1067 | autoneg = (msg->body[2] >> 24) & 0xff; | |
1068 | ||
1069 | module = (msg->body[2] >> 8) & 0xff; | |
1070 | if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) { | |
1071 | printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n", | |
1072 | netdev->name, cable_OUI, cable_len); | |
1073 | } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) { | |
1074 | printk(KERN_INFO "%s: unsupported cable length %d\n", | |
1075 | netdev->name, cable_len); | |
1076 | } | |
1077 | ||
1078 | netxen_advert_link_change(adapter, link_status); | |
1079 | ||
1080 | /* update link parameters */ | |
1081 | if (duplex == LINKEVENT_FULL_DUPLEX) | |
1082 | adapter->link_duplex = DUPLEX_FULL; | |
1083 | else | |
1084 | adapter->link_duplex = DUPLEX_HALF; | |
1085 | adapter->module_type = module; | |
1086 | adapter->link_autoneg = autoneg; | |
1087 | adapter->link_speed = link_speed; | |
1088 | } | |
1089 | ||
1090 | static void | |
1091 | netxen_handle_fw_message(int desc_cnt, int index, | |
1092 | struct nx_host_sds_ring *sds_ring) | |
1093 | { | |
1094 | nx_fw_msg_t msg; | |
1095 | struct status_desc *desc; | |
1096 | int i = 0, opcode; | |
1097 | ||
1098 | while (desc_cnt > 0 && i < 8) { | |
1099 | desc = &sds_ring->desc_head[index]; | |
1100 | msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]); | |
1101 | msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]); | |
1102 | ||
1103 | index = get_next_index(index, sds_ring->num_desc); | |
1104 | desc_cnt--; | |
1105 | } | |
1106 | ||
1107 | opcode = netxen_get_nic_msg_opcode(msg.body[0]); | |
1108 | switch (opcode) { | |
1109 | case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE: | |
1110 | netxen_handle_linkevent(sds_ring->adapter, &msg); | |
1111 | break; | |
1112 | default: | |
1113 | break; | |
1114 | } | |
1115 | } | |
1116 | ||
d8b100c5 DP |
1117 | static int |
1118 | netxen_alloc_rx_skb(struct netxen_adapter *adapter, | |
1119 | struct nx_host_rds_ring *rds_ring, | |
1120 | struct netxen_rx_buffer *buffer) | |
1121 | { | |
1122 | struct sk_buff *skb; | |
1123 | dma_addr_t dma; | |
1124 | struct pci_dev *pdev = adapter->pdev; | |
1125 | ||
1126 | buffer->skb = dev_alloc_skb(rds_ring->skb_size); | |
1127 | if (!buffer->skb) | |
1128 | return 1; | |
1129 | ||
1130 | skb = buffer->skb; | |
1131 | ||
1132 | if (!adapter->ahw.cut_through) | |
1133 | skb_reserve(skb, 2); | |
1134 | ||
1135 | dma = pci_map_single(pdev, skb->data, | |
1136 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); | |
1137 | ||
1138 | if (pci_dma_mapping_error(pdev, dma)) { | |
1139 | dev_kfree_skb_any(skb); | |
1140 | buffer->skb = NULL; | |
1141 | return 1; | |
1142 | } | |
1143 | ||
1144 | buffer->skb = skb; | |
1145 | buffer->dma = dma; | |
1146 | buffer->state = NETXEN_BUFFER_BUSY; | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
d9e651bc DP |
1151 | static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter, |
1152 | struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum) | |
1153 | { | |
1154 | struct netxen_rx_buffer *buffer; | |
1155 | struct sk_buff *skb; | |
1156 | ||
1157 | buffer = &rds_ring->rx_buf_arr[index]; | |
1158 | ||
1159 | pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, | |
1160 | PCI_DMA_FROMDEVICE); | |
1161 | ||
1162 | skb = buffer->skb; | |
1163 | if (!skb) | |
1164 | goto no_skb; | |
1165 | ||
1166 | if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { | |
1167 | adapter->stats.csummed++; | |
1168 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1169 | } else | |
1170 | skb->ip_summed = CHECKSUM_NONE; | |
1171 | ||
1172 | skb->dev = adapter->netdev; | |
1173 | ||
1174 | buffer->skb = NULL; | |
d9e651bc DP |
1175 | no_skb: |
1176 | buffer->state = NETXEN_BUFFER_FREE; | |
d9e651bc DP |
1177 | return skb; |
1178 | } | |
1179 | ||
d8b100c5 | 1180 | static struct netxen_rx_buffer * |
9b3ef55c | 1181 | netxen_process_rcv(struct netxen_adapter *adapter, |
c1c00ab8 DP |
1182 | struct nx_host_sds_ring *sds_ring, |
1183 | int ring, u64 sts_data0) | |
3d396eb1 | 1184 | { |
3176ff3e | 1185 | struct net_device *netdev = adapter->netdev; |
becf46a0 | 1186 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
3d396eb1 AK |
1187 | struct netxen_rx_buffer *buffer; |
1188 | struct sk_buff *skb; | |
c1c00ab8 DP |
1189 | struct nx_host_rds_ring *rds_ring; |
1190 | int index, length, cksum, pkt_offset; | |
3d396eb1 | 1191 | |
c1c00ab8 DP |
1192 | if (unlikely(ring >= adapter->max_rds_rings)) |
1193 | return NULL; | |
1194 | ||
1195 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1196 | ||
1197 | index = netxen_get_sts_refhandle(sts_data0); | |
1198 | if (unlikely(index >= rds_ring->num_desc)) | |
d8b100c5 | 1199 | return NULL; |
438627c7 | 1200 | |
48bfd1e0 | 1201 | buffer = &rds_ring->rx_buf_arr[index]; |
3d396eb1 | 1202 | |
c1c00ab8 DP |
1203 | length = netxen_get_sts_totallength(sts_data0); |
1204 | cksum = netxen_get_sts_status(sts_data0); | |
1205 | pkt_offset = netxen_get_sts_pkt_offset(sts_data0); | |
1206 | ||
d9e651bc DP |
1207 | skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum); |
1208 | if (!skb) | |
d8b100c5 | 1209 | return buffer; |
200eef20 | 1210 | |
9b3ef55c DP |
1211 | if (length > rds_ring->skb_size) |
1212 | skb_put(skb, rds_ring->skb_size); | |
1213 | else | |
1214 | skb_put(skb, length); | |
d9e651bc | 1215 | |
9b3ef55c DP |
1216 | |
1217 | if (pkt_offset) | |
1218 | skb_pull(skb, pkt_offset); | |
ed25ffa1 | 1219 | |
3d396eb1 AK |
1220 | skb->protocol = eth_type_trans(skb, netdev); |
1221 | ||
a92e9e65 | 1222 | napi_gro_receive(&sds_ring->napi, skb); |
d9e651bc | 1223 | |
1bb482f8 | 1224 | adapter->stats.rx_pkts++; |
0ddc110c | 1225 | adapter->stats.rxbytes += length; |
d8b100c5 DP |
1226 | |
1227 | return buffer; | |
3d396eb1 AK |
1228 | } |
1229 | ||
c1c00ab8 DP |
1230 | #define TCP_HDR_SIZE 20 |
1231 | #define TCP_TS_OPTION_SIZE 12 | |
1232 | #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE) | |
1233 | ||
1234 | static struct netxen_rx_buffer * | |
1235 | netxen_process_lro(struct netxen_adapter *adapter, | |
1236 | struct nx_host_sds_ring *sds_ring, | |
1237 | int ring, u64 sts_data0, u64 sts_data1) | |
1238 | { | |
1239 | struct net_device *netdev = adapter->netdev; | |
1240 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; | |
1241 | struct netxen_rx_buffer *buffer; | |
1242 | struct sk_buff *skb; | |
1243 | struct nx_host_rds_ring *rds_ring; | |
1244 | struct iphdr *iph; | |
1245 | struct tcphdr *th; | |
1246 | bool push, timestamp; | |
1247 | int l2_hdr_offset, l4_hdr_offset; | |
1248 | int index; | |
1249 | u16 lro_length, length, data_offset; | |
1250 | u32 seq_number; | |
1251 | ||
1252 | if (unlikely(ring > adapter->max_rds_rings)) | |
1253 | return NULL; | |
1254 | ||
1255 | rds_ring = &recv_ctx->rds_rings[ring]; | |
1256 | ||
1257 | index = netxen_get_lro_sts_refhandle(sts_data0); | |
1258 | if (unlikely(index > rds_ring->num_desc)) | |
1259 | return NULL; | |
1260 | ||
1261 | buffer = &rds_ring->rx_buf_arr[index]; | |
1262 | ||
1263 | timestamp = netxen_get_lro_sts_timestamp(sts_data0); | |
1264 | lro_length = netxen_get_lro_sts_length(sts_data0); | |
1265 | l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0); | |
1266 | l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0); | |
1267 | push = netxen_get_lro_sts_push_flag(sts_data0); | |
1268 | seq_number = netxen_get_lro_sts_seq_number(sts_data1); | |
1269 | ||
1270 | skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK); | |
1271 | if (!skb) | |
1272 | return buffer; | |
1273 | ||
1274 | if (timestamp) | |
1275 | data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE; | |
1276 | else | |
1277 | data_offset = l4_hdr_offset + TCP_HDR_SIZE; | |
1278 | ||
1279 | skb_put(skb, lro_length + data_offset); | |
1280 | ||
1281 | skb->truesize = (skb->len + sizeof(struct sk_buff) + | |
1282 | ((unsigned long)skb->data - (unsigned long)skb->head)); | |
1283 | ||
1284 | skb_pull(skb, l2_hdr_offset); | |
1285 | skb->protocol = eth_type_trans(skb, netdev); | |
1286 | ||
1287 | iph = (struct iphdr *)skb->data; | |
1288 | th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); | |
1289 | ||
1290 | length = (iph->ihl << 2) + (th->doff << 2) + lro_length; | |
1291 | iph->tot_len = htons(length); | |
1292 | iph->check = 0; | |
1293 | iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); | |
1294 | th->psh = push; | |
1295 | th->seq = htonl(seq_number); | |
1296 | ||
1bb482f8 NK |
1297 | length = skb->len; |
1298 | ||
c1c00ab8 DP |
1299 | netif_receive_skb(skb); |
1300 | ||
1bb482f8 NK |
1301 | adapter->stats.lro_pkts++; |
1302 | adapter->stats.rxbytes += length; | |
1303 | ||
c1c00ab8 DP |
1304 | return buffer; |
1305 | } | |
1306 | ||
d8b100c5 DP |
1307 | #define netxen_merge_rx_buffers(list, head) \ |
1308 | do { list_splice_tail_init(list, head); } while (0); | |
1309 | ||
becf46a0 | 1310 | int |
d8b100c5 | 1311 | netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max) |
3d396eb1 | 1312 | { |
d8b100c5 DP |
1313 | struct netxen_adapter *adapter = sds_ring->adapter; |
1314 | ||
1315 | struct list_head *cur; | |
1316 | ||
0ddc110c | 1317 | struct status_desc *desc; |
d8b100c5 DP |
1318 | struct netxen_rx_buffer *rxbuf; |
1319 | ||
1320 | u32 consumer = sds_ring->consumer; | |
1321 | ||
9b3ef55c | 1322 | int count = 0; |
c1c00ab8 DP |
1323 | u64 sts_data0, sts_data1; |
1324 | int opcode, ring = 0, desc_cnt; | |
3d396eb1 | 1325 | |
3d396eb1 | 1326 | while (count < max) { |
d8b100c5 | 1327 | desc = &sds_ring->desc_head[consumer]; |
c1c00ab8 | 1328 | sts_data0 = le64_to_cpu(desc->status_desc_data[0]); |
0ddc110c | 1329 | |
c1c00ab8 | 1330 | if (!(sts_data0 & STATUS_OWNER_HOST)) |
3d396eb1 | 1331 | break; |
d9e651bc | 1332 | |
c1c00ab8 | 1333 | desc_cnt = netxen_get_sts_desc_cnt(sts_data0); |
3bf26ce3 | 1334 | |
c1c00ab8 | 1335 | opcode = netxen_get_sts_opcode(sts_data0); |
d9e651bc | 1336 | |
3bf26ce3 DP |
1337 | switch (opcode) { |
1338 | case NETXEN_NIC_RXPKT_DESC: | |
1339 | case NETXEN_OLD_RXPKT_DESC: | |
6598b169 | 1340 | case NETXEN_NIC_SYN_OFFLOAD: |
c1c00ab8 DP |
1341 | ring = netxen_get_sts_type(sts_data0); |
1342 | rxbuf = netxen_process_rcv(adapter, sds_ring, | |
1343 | ring, sts_data0); | |
1344 | break; | |
1345 | case NETXEN_NIC_LRO_DESC: | |
1346 | ring = netxen_get_lro_sts_type(sts_data0); | |
1347 | sts_data1 = le64_to_cpu(desc->status_desc_data[1]); | |
1348 | rxbuf = netxen_process_lro(adapter, sds_ring, | |
1349 | ring, sts_data0, sts_data1); | |
3bf26ce3 DP |
1350 | break; |
1351 | case NETXEN_NIC_RESPONSE_DESC: | |
1352 | netxen_handle_fw_message(desc_cnt, consumer, sds_ring); | |
1353 | default: | |
1354 | goto skip; | |
1355 | } | |
1356 | ||
1357 | WARN_ON(desc_cnt > 1); | |
1358 | ||
d8b100c5 DP |
1359 | if (rxbuf) |
1360 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); | |
1361 | ||
3bf26ce3 DP |
1362 | skip: |
1363 | for (; desc_cnt > 0; desc_cnt--) { | |
1364 | desc = &sds_ring->desc_head[consumer]; | |
1365 | desc->status_desc_data[0] = | |
1366 | cpu_to_le64(STATUS_OWNER_PHANTOM); | |
1367 | consumer = get_next_index(consumer, sds_ring->num_desc); | |
1368 | } | |
3d396eb1 AK |
1369 | count++; |
1370 | } | |
0ddc110c | 1371 | |
d8b100c5 DP |
1372 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
1373 | struct nx_host_rds_ring *rds_ring = | |
1374 | &adapter->recv_ctx.rds_rings[ring]; | |
1375 | ||
1376 | if (!list_empty(&sds_ring->free_list[ring])) { | |
1377 | list_for_each(cur, &sds_ring->free_list[ring]) { | |
1378 | rxbuf = list_entry(cur, | |
1379 | struct netxen_rx_buffer, list); | |
1380 | netxen_alloc_rx_skb(adapter, rds_ring, rxbuf); | |
1381 | } | |
1382 | spin_lock(&rds_ring->lock); | |
1383 | netxen_merge_rx_buffers(&sds_ring->free_list[ring], | |
1384 | &rds_ring->free_list); | |
1385 | spin_unlock(&rds_ring->lock); | |
1386 | } | |
1387 | ||
1388 | netxen_post_rx_buffers_nodb(adapter, rds_ring); | |
1389 | } | |
3d396eb1 | 1390 | |
3d396eb1 | 1391 | if (count) { |
d8b100c5 | 1392 | sds_ring->consumer = consumer; |
f98a9f69 | 1393 | NXWR32(adapter, sds_ring->crb_sts_consumer, consumer); |
3d396eb1 AK |
1394 | } |
1395 | ||
1396 | return count; | |
1397 | } | |
1398 | ||
1399 | /* Process Command status ring */ | |
05aaa02d | 1400 | int netxen_process_cmd_ring(struct netxen_adapter *adapter) |
3d396eb1 | 1401 | { |
d877f1e3 | 1402 | u32 sw_consumer, hw_consumer; |
ba53e6b4 | 1403 | int count = 0, i; |
3d396eb1 | 1404 | struct netxen_cmd_buffer *buffer; |
ba53e6b4 DP |
1405 | struct pci_dev *pdev = adapter->pdev; |
1406 | struct net_device *netdev = adapter->netdev; | |
3d396eb1 | 1407 | struct netxen_skb_frag *frag; |
ba53e6b4 | 1408 | int done = 0; |
4ea528a1 | 1409 | struct nx_host_tx_ring *tx_ring = adapter->tx_ring; |
3d396eb1 | 1410 | |
d8b100c5 DP |
1411 | if (!spin_trylock(&adapter->tx_clean_lock)) |
1412 | return 1; | |
1413 | ||
d877f1e3 | 1414 | sw_consumer = tx_ring->sw_consumer; |
d877f1e3 | 1415 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); |
3d396eb1 | 1416 | |
d877f1e3 DP |
1417 | while (sw_consumer != hw_consumer) { |
1418 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; | |
53a01e00 | 1419 | if (buffer->skb) { |
1420 | frag = &buffer->frag_array[0]; | |
3d396eb1 AK |
1421 | pci_unmap_single(pdev, frag->dma, frag->length, |
1422 | PCI_DMA_TODEVICE); | |
96acb6eb | 1423 | frag->dma = 0ULL; |
3d396eb1 | 1424 | for (i = 1; i < buffer->frag_count; i++) { |
3d396eb1 AK |
1425 | frag++; /* Get the next frag */ |
1426 | pci_unmap_page(pdev, frag->dma, frag->length, | |
1427 | PCI_DMA_TODEVICE); | |
96acb6eb | 1428 | frag->dma = 0ULL; |
3d396eb1 AK |
1429 | } |
1430 | ||
ba53e6b4 | 1431 | adapter->stats.xmitfinished++; |
53a01e00 | 1432 | dev_kfree_skb_any(buffer->skb); |
1433 | buffer->skb = NULL; | |
3d396eb1 AK |
1434 | } |
1435 | ||
d877f1e3 | 1436 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); |
ba53e6b4 DP |
1437 | if (++count >= MAX_STATUS_HANDLE) |
1438 | break; | |
3d396eb1 | 1439 | } |
3d396eb1 | 1440 | |
22527864 | 1441 | if (count && netif_running(netdev)) { |
cb2107be DP |
1442 | tx_ring->sw_consumer = sw_consumer; |
1443 | ||
ba53e6b4 | 1444 | smp_mb(); |
cb2107be | 1445 | |
22527864 | 1446 | if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { |
b2af9cb0 | 1447 | __netif_tx_lock(tx_ring->txq, smp_processor_id()); |
cb2107be DP |
1448 | if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) |
1449 | netif_wake_queue(netdev); | |
b2af9cb0 | 1450 | __netif_tx_unlock(tx_ring->txq); |
3d396eb1 AK |
1451 | } |
1452 | } | |
ed25ffa1 AK |
1453 | /* |
1454 | * If everything is freed up to consumer then check if the ring is full | |
1455 | * If the ring is full then check if more needs to be freed and | |
1456 | * schedule the call back again. | |
1457 | * | |
1458 | * This happens when there are 2 CPUs. One could be freeing and the | |
1459 | * other filling it. If the ring is full when we get out of here and | |
1460 | * the card has already interrupted the host then the host can miss the | |
1461 | * interrupt. | |
1462 | * | |
1463 | * There is still a possible race condition and the host could miss an | |
1464 | * interrupt. The card has to take care of this. | |
1465 | */ | |
d877f1e3 DP |
1466 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); |
1467 | done = (sw_consumer == hw_consumer); | |
d8b100c5 | 1468 | spin_unlock(&adapter->tx_clean_lock); |
3d396eb1 | 1469 | |
ed25ffa1 | 1470 | return (done); |
3d396eb1 AK |
1471 | } |
1472 | ||
becf46a0 | 1473 | void |
d8b100c5 DP |
1474 | netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, |
1475 | struct nx_host_rds_ring *rds_ring) | |
3d396eb1 | 1476 | { |
3d396eb1 AK |
1477 | struct rcv_desc *pdesc; |
1478 | struct netxen_rx_buffer *buffer; | |
d8b100c5 | 1479 | int producer, count = 0; |
ed25ffa1 | 1480 | netxen_ctx_msg msg = 0; |
d9e651bc | 1481 | struct list_head *head; |
3d396eb1 | 1482 | |
48bfd1e0 | 1483 | producer = rds_ring->producer; |
d9e651bc | 1484 | |
d8b100c5 DP |
1485 | spin_lock(&rds_ring->lock); |
1486 | head = &rds_ring->free_list; | |
d9e651bc DP |
1487 | while (!list_empty(head)) { |
1488 | ||
d8b100c5 | 1489 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
6f703406 | 1490 | |
d8b100c5 DP |
1491 | if (!buffer->skb) { |
1492 | if (netxen_alloc_rx_skb(adapter, rds_ring, buffer)) | |
1493 | break; | |
6f703406 DP |
1494 | } |
1495 | ||
1496 | count++; | |
d9e651bc DP |
1497 | list_del(&buffer->list); |
1498 | ||
ed25ffa1 | 1499 | /* make a rcv descriptor */ |
6f703406 | 1500 | pdesc = &rds_ring->desc_head[producer]; |
d8b100c5 | 1501 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
ed33ebe4 | 1502 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
48bfd1e0 | 1503 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
6f703406 | 1504 | |
438627c7 | 1505 | producer = get_next_index(producer, rds_ring->num_desc); |
ed25ffa1 | 1506 | } |
d8b100c5 | 1507 | spin_unlock(&rds_ring->lock); |
9b3ef55c | 1508 | |
ed25ffa1 | 1509 | if (count) { |
48bfd1e0 | 1510 | rds_ring->producer = producer; |
f98a9f69 | 1511 | NXWR32(adapter, rds_ring->crb_rcv_producer, |
438627c7 | 1512 | (producer-1) & (rds_ring->num_desc-1)); |
48bfd1e0 | 1513 | |
4f96b988 | 1514 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
ed25ffa1 AK |
1515 | /* |
1516 | * Write a doorbell msg to tell phanmon of change in | |
1517 | * receive ring producer | |
48bfd1e0 | 1518 | * Only for firmware version < 4.0.0 |
ed25ffa1 AK |
1519 | */ |
1520 | netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); | |
1521 | netxen_set_msg_privid(msg); | |
1522 | netxen_set_msg_count(msg, | |
438627c7 DP |
1523 | ((producer - 1) & |
1524 | (rds_ring->num_desc - 1))); | |
3176ff3e | 1525 | netxen_set_msg_ctxid(msg, adapter->portnum); |
ed25ffa1 AK |
1526 | netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); |
1527 | writel(msg, | |
1528 | DB_NORMALIZE(adapter, | |
1529 | NETXEN_RCV_PRODUCER_OFFSET)); | |
48bfd1e0 | 1530 | } |
ed25ffa1 AK |
1531 | } |
1532 | } | |
1533 | ||
becf46a0 | 1534 | static void |
d8b100c5 DP |
1535 | netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
1536 | struct nx_host_rds_ring *rds_ring) | |
ed25ffa1 | 1537 | { |
ed25ffa1 AK |
1538 | struct rcv_desc *pdesc; |
1539 | struct netxen_rx_buffer *buffer; | |
d8b100c5 | 1540 | int producer, count = 0; |
d9e651bc | 1541 | struct list_head *head; |
ed25ffa1 | 1542 | |
48bfd1e0 | 1543 | producer = rds_ring->producer; |
d8b100c5 DP |
1544 | if (!spin_trylock(&rds_ring->lock)) |
1545 | return; | |
1546 | ||
d9e651bc | 1547 | head = &rds_ring->free_list; |
d9e651bc DP |
1548 | while (!list_empty(head)) { |
1549 | ||
d8b100c5 | 1550 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
6f703406 | 1551 | |
d8b100c5 DP |
1552 | if (!buffer->skb) { |
1553 | if (netxen_alloc_rx_skb(adapter, rds_ring, buffer)) | |
1554 | break; | |
6f703406 DP |
1555 | } |
1556 | ||
1557 | count++; | |
d9e651bc DP |
1558 | list_del(&buffer->list); |
1559 | ||
3d396eb1 | 1560 | /* make a rcv descriptor */ |
6f703406 | 1561 | pdesc = &rds_ring->desc_head[producer]; |
ed33ebe4 | 1562 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
48bfd1e0 | 1563 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
3d396eb1 | 1564 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
6f703406 | 1565 | |
438627c7 | 1566 | producer = get_next_index(producer, rds_ring->num_desc); |
3d396eb1 AK |
1567 | } |
1568 | ||
3d396eb1 | 1569 | if (count) { |
48bfd1e0 | 1570 | rds_ring->producer = producer; |
f98a9f69 | 1571 | NXWR32(adapter, rds_ring->crb_rcv_producer, |
438627c7 | 1572 | (producer - 1) & (rds_ring->num_desc - 1)); |
3d396eb1 | 1573 | } |
d8b100c5 | 1574 | spin_unlock(&rds_ring->lock); |
3d396eb1 AK |
1575 | } |
1576 | ||
3d396eb1 AK |
1577 | void netxen_nic_clear_stats(struct netxen_adapter *adapter) |
1578 | { | |
3d396eb1 | 1579 | memset(&adapter->stats, 0, sizeof(adapter->stats)); |
3176ff3e | 1580 | return; |
3d396eb1 AK |
1581 | } |
1582 |