2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.
26 #include <linux/netdevice.h>
27 #include <linux/delay.h>
28 #include "netxen_nic.h"
29 #include "netxen_nic_hw.h"
31 struct crb_addr_pair {
36 #define NETXEN_MAX_CRB_XFORM 60
37 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
38 #define NETXEN_ADDR_ERROR (0xffffffff)
40 #define crb_addr_transform(name) \
41 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
42 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
44 #define NETXEN_NIC_XDMA_RESET 0x8000ff
47 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
48 struct nx_host_rds_ring *rds_ring);
49 static int netxen_p3_has_mn(struct netxen_adapter *adapter);
51 static void crb_addr_transform_setup(void)
53 crb_addr_transform(XDMA);
54 crb_addr_transform(TIMR);
55 crb_addr_transform(SRE);
56 crb_addr_transform(SQN3);
57 crb_addr_transform(SQN2);
58 crb_addr_transform(SQN1);
59 crb_addr_transform(SQN0);
60 crb_addr_transform(SQS3);
61 crb_addr_transform(SQS2);
62 crb_addr_transform(SQS1);
63 crb_addr_transform(SQS0);
64 crb_addr_transform(RPMX7);
65 crb_addr_transform(RPMX6);
66 crb_addr_transform(RPMX5);
67 crb_addr_transform(RPMX4);
68 crb_addr_transform(RPMX3);
69 crb_addr_transform(RPMX2);
70 crb_addr_transform(RPMX1);
71 crb_addr_transform(RPMX0);
72 crb_addr_transform(ROMUSB);
73 crb_addr_transform(SN);
74 crb_addr_transform(QMN);
75 crb_addr_transform(QMS);
76 crb_addr_transform(PGNI);
77 crb_addr_transform(PGND);
78 crb_addr_transform(PGN3);
79 crb_addr_transform(PGN2);
80 crb_addr_transform(PGN1);
81 crb_addr_transform(PGN0);
82 crb_addr_transform(PGSI);
83 crb_addr_transform(PGSD);
84 crb_addr_transform(PGS3);
85 crb_addr_transform(PGS2);
86 crb_addr_transform(PGS1);
87 crb_addr_transform(PGS0);
88 crb_addr_transform(PS);
89 crb_addr_transform(PH);
90 crb_addr_transform(NIU);
91 crb_addr_transform(I2Q);
92 crb_addr_transform(EG);
93 crb_addr_transform(MN);
94 crb_addr_transform(MS);
95 crb_addr_transform(CAS2);
96 crb_addr_transform(CAS1);
97 crb_addr_transform(CAS0);
98 crb_addr_transform(CAM);
99 crb_addr_transform(C2C1);
100 crb_addr_transform(C2C0);
101 crb_addr_transform(SMB);
102 crb_addr_transform(OCM0);
103 crb_addr_transform(I2C0);
106 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
108 struct netxen_recv_context *recv_ctx;
109 struct nx_host_rds_ring *rds_ring;
110 struct netxen_rx_buffer *rx_buf;
113 recv_ctx = &adapter->recv_ctx;
114 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
115 rds_ring = &recv_ctx->rds_rings[ring];
116 for (i = 0; i < rds_ring->num_desc; ++i) {
117 rx_buf = &(rds_ring->rx_buf_arr[i]);
118 if (rx_buf->state == NETXEN_BUFFER_FREE)
120 pci_unmap_single(adapter->pdev,
124 if (rx_buf->skb != NULL)
125 dev_kfree_skb_any(rx_buf->skb);
130 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
132 struct netxen_cmd_buffer *cmd_buf;
133 struct netxen_skb_frag *buffrag;
135 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
137 cmd_buf = tx_ring->cmd_buf_arr;
138 for (i = 0; i < tx_ring->num_desc; i++) {
139 buffrag = cmd_buf->frag_array;
141 pci_unmap_single(adapter->pdev, buffrag->dma,
142 buffrag->length, PCI_DMA_TODEVICE);
145 for (j = 0; j < cmd_buf->frag_count; j++) {
148 pci_unmap_page(adapter->pdev, buffrag->dma,
155 dev_kfree_skb_any(cmd_buf->skb);
162 void netxen_free_sw_resources(struct netxen_adapter *adapter)
164 struct netxen_recv_context *recv_ctx;
165 struct nx_host_rds_ring *rds_ring;
166 struct nx_host_tx_ring *tx_ring;
169 recv_ctx = &adapter->recv_ctx;
171 if (recv_ctx->rds_rings == NULL)
174 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
175 rds_ring = &recv_ctx->rds_rings[ring];
176 vfree(rds_ring->rx_buf_arr);
177 rds_ring->rx_buf_arr = NULL;
179 kfree(recv_ctx->rds_rings);
182 if (adapter->tx_ring == NULL)
185 tx_ring = adapter->tx_ring;
186 vfree(tx_ring->cmd_buf_arr);
189 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
191 struct netxen_recv_context *recv_ctx;
192 struct nx_host_rds_ring *rds_ring;
193 struct nx_host_sds_ring *sds_ring;
194 struct nx_host_tx_ring *tx_ring;
195 struct netxen_rx_buffer *rx_buf;
198 struct netxen_cmd_buffer *cmd_buf_arr;
199 struct net_device *netdev = adapter->netdev;
200 struct pci_dev *pdev = adapter->pdev;
202 size = sizeof(struct nx_host_tx_ring);
203 tx_ring = kzalloc(size, GFP_KERNEL);
204 if (tx_ring == NULL) {
205 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
209 adapter->tx_ring = tx_ring;
211 tx_ring->num_desc = adapter->num_txd;
212 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
214 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
215 if (cmd_buf_arr == NULL) {
216 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
220 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
221 tx_ring->cmd_buf_arr = cmd_buf_arr;
223 recv_ctx = &adapter->recv_ctx;
225 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
226 rds_ring = kzalloc(size, GFP_KERNEL);
227 if (rds_ring == NULL) {
228 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
232 recv_ctx->rds_rings = rds_ring;
234 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
235 rds_ring = &recv_ctx->rds_rings[ring];
237 case RCV_RING_NORMAL:
238 rds_ring->num_desc = adapter->num_rxd;
239 if (adapter->ahw.cut_through) {
241 NX_CT_DEFAULT_RX_BUF_LEN;
243 NX_CT_DEFAULT_RX_BUF_LEN;
245 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
247 NX_P3_RX_BUF_MAX_LEN;
250 NX_P2_RX_BUF_MAX_LEN;
252 rds_ring->dma_size + NET_IP_ALIGN;
257 rds_ring->num_desc = adapter->num_jumbo_rxd;
258 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
260 NX_P3_RX_JUMBO_BUF_MAX_LEN;
263 NX_P2_RX_JUMBO_BUF_MAX_LEN;
265 if (adapter->capabilities & NX_CAP0_HW_LRO)
266 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
269 rds_ring->dma_size + NET_IP_ALIGN;
273 rds_ring->num_desc = adapter->num_lro_rxd;
274 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
275 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
279 rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
280 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
281 if (rds_ring->rx_buf_arr == NULL) {
282 printk(KERN_ERR "%s: Failed to allocate "
283 "rx buffer ring %d\n",
285 /* free whatever was already allocated */
288 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
289 INIT_LIST_HEAD(&rds_ring->free_list);
291 * Now go through all of them, set reference handles
292 * and put them in the queues.
294 rx_buf = rds_ring->rx_buf_arr;
295 for (i = 0; i < rds_ring->num_desc; i++) {
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;
302 spin_lock_init(&rds_ring->lock);
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;
308 sds_ring->adapter = adapter;
309 sds_ring->num_desc = adapter->num_rxd;
311 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
312 INIT_LIST_HEAD(&sds_ring->free_list[i]);
318 netxen_free_sw_resources(adapter);
323 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
324 * address to external PCI CRB address.
326 static u32 netxen_decode_crb_addr(u32 addr)
329 u32 base_addr, offset, pci_base;
331 crb_addr_transform_setup();
333 pci_base = NETXEN_ADDR_ERROR;
334 base_addr = addr & 0xfff00000;
335 offset = addr & 0x000fffff;
337 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
338 if (crb_addr_xform[i] == base_addr) {
343 if (pci_base == NETXEN_ADDR_ERROR)
346 return (pci_base + offset);
349 #define NETXEN_MAX_ROM_WAIT_USEC 100
351 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
359 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
361 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
362 dev_err(&adapter->pdev->dev,
363 "Timeout reached waiting for rom done");
371 static int do_rom_fast_read(struct netxen_adapter *adapter,
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
375 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
377 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
378 if (netxen_wait_rom_done(adapter)) {
379 printk("Error waiting for rom done\n");
382 /* reset abyte_cnt and dummy_byte_cnt */
383 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
385 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
387 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
391 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
392 u8 *bytes, size_t size)
397 for (addridx = addr; addridx < (addr + size); addridx += 4) {
399 ret = do_rom_fast_read(adapter, addridx, &v);
402 *(__le32 *)bytes = cpu_to_le32(v);
410 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
411 u8 *bytes, size_t size)
415 ret = netxen_rom_lock(adapter);
419 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
421 netxen_rom_unlock(adapter);
425 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
429 if (netxen_rom_lock(adapter) != 0)
432 ret = do_rom_fast_read(adapter, addr, valp);
433 netxen_rom_unlock(adapter);
437 #define NETXEN_BOARDTYPE 0x4008
438 #define NETXEN_BOARDNUM 0x400c
439 #define NETXEN_CHIPNUM 0x4010
441 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
444 int i, n, init_delay = 0;
445 struct crb_addr_pair *buf;
450 netxen_rom_lock(adapter);
451 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
452 netxen_rom_unlock(adapter);
454 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
455 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
457 netxen_rom_fast_read(adapter, 4, &n) != 0) {
458 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
459 "n: %08x\n", netxen_nic_driver_name, n);
462 offset = n & 0xffffU;
463 n = (n >> 16) & 0xffffU;
465 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
467 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
468 "n: %08x\n", netxen_nic_driver_name, n);
476 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
477 " initialized.\n", __func__, n);
481 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
483 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
484 netxen_nic_driver_name);
488 for (i = 0; i < n; i++) {
489 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
490 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
500 for (i = 0; i < n; i++) {
502 off = netxen_decode_crb_addr(buf[i].addr);
503 if (off == NETXEN_ADDR_ERROR) {
504 printk(KERN_ERR"CRB init value out of range %x\n",
508 off += NETXEN_PCI_CRBSPACE;
513 /* skipping cold reboot MAGIC */
514 if (off == NETXEN_CAM_RAM(0x1fc))
517 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
518 if (off == (NETXEN_CRB_I2C0 + 0x1c))
520 /* do not reset PCI */
521 if (off == (ROMUSB_GLB + 0xbc))
523 if (off == (ROMUSB_GLB + 0xa8))
525 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
527 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
529 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
531 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
533 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
534 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
535 buf[i].data = 0x1020;
536 /* skip the function enable register */
537 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
539 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
541 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
546 /* After writing this register, HW needs time for CRB */
547 /* to quiet down (else crb_window returns 0xffffffff) */
548 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
550 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
551 /* hold xdma in reset also */
552 buf[i].data = NETXEN_NIC_XDMA_RESET;
553 buf[i].data = 0x8000ff;
557 NXWR32(adapter, off, buf[i].data);
563 /* disable_peg_cache_all */
565 /* unreset_net_cache */
566 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
567 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
568 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
571 /* p2dn replyCount */
572 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
573 /* disable_peg_cache 0 */
574 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
575 /* disable_peg_cache 1 */
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
581 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
582 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
584 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
585 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
587 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
588 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
590 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
591 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
595 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
598 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
599 __le32 entries = cpu_to_le32(directory->num_entries);
601 for (i = 0; i < entries; i++) {
603 __le32 offs = cpu_to_le32(directory->findex) +
604 (i * cpu_to_le32(directory->entry_size));
605 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
607 if (tab_type == section)
608 return (struct uni_table_desc *) &unirom[offs];
615 nx_set_product_offs(struct netxen_adapter *adapter)
617 struct uni_table_desc *ptab_descr;
618 const u8 *unirom = adapter->fw->data;
622 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
623 1 : netxen_p3_has_mn(adapter);
625 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
626 if (ptab_descr == NULL)
629 entries = cpu_to_le32(ptab_descr->num_entries);
632 for (i = 0; i < entries; i++) {
634 __le32 flags, file_chiprev, offs;
635 u8 chiprev = adapter->ahw.revision_id;
638 offs = cpu_to_le32(ptab_descr->findex) +
639 (i * cpu_to_le32(ptab_descr->entry_size));
640 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
641 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
642 NX_UNI_CHIP_REV_OFF));
644 flagbit = mn_present ? 1 : 2;
646 if ((chiprev == file_chiprev) &&
647 ((1ULL << flagbit) & flags)) {
648 adapter->file_prd_off = offs;
653 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
662 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
663 u32 section, u32 idx_offset)
665 const u8 *unirom = adapter->fw->data;
666 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
668 struct uni_table_desc *tab_desc;
671 tab_desc = nx_get_table_desc(unirom, section);
673 if (tab_desc == NULL)
676 offs = cpu_to_le32(tab_desc->findex) +
677 (cpu_to_le32(tab_desc->entry_size) * idx);
679 return (struct uni_data_desc *)&unirom[offs];
683 nx_get_bootld_offs(struct netxen_adapter *adapter)
685 u32 offs = NETXEN_BOOTLD_START;
687 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
688 offs = cpu_to_le32((nx_get_data_desc(adapter,
689 NX_UNI_DIR_SECT_BOOTLD,
690 NX_UNI_BOOTLD_IDX_OFF))->findex);
692 return (u8 *)&adapter->fw->data[offs];
696 nx_get_fw_offs(struct netxen_adapter *adapter)
698 u32 offs = NETXEN_IMAGE_START;
700 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
701 offs = cpu_to_le32((nx_get_data_desc(adapter,
703 NX_UNI_FIRMWARE_IDX_OFF))->findex);
705 return (u8 *)&adapter->fw->data[offs];
709 nx_get_fw_size(struct netxen_adapter *adapter)
711 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
712 return cpu_to_le32((nx_get_data_desc(adapter,
714 NX_UNI_FIRMWARE_IDX_OFF))->size);
717 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
721 nx_get_fw_version(struct netxen_adapter *adapter)
723 struct uni_data_desc *fw_data_desc;
724 const struct firmware *fw = adapter->fw;
725 __le32 major, minor, sub;
729 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
731 fw_data_desc = nx_get_data_desc(adapter,
732 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
733 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
734 cpu_to_le32(fw_data_desc->size) - 17;
736 for (i = 0; i < 12; i++) {
737 if (!strncmp(&ver_str[i], "REV=", 4)) {
738 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
739 &major, &minor, &sub);
747 return major + (minor << 8) + (sub << 16);
750 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
754 nx_get_bios_version(struct netxen_adapter *adapter)
756 const struct firmware *fw = adapter->fw;
757 __le32 bios_ver, prd_off = adapter->file_prd_off;
759 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
760 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
761 + NX_UNI_BIOS_VERSION_OFF));
762 return (bios_ver << 24) + ((bios_ver >> 8) & 0xff00) +
765 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
770 netxen_need_fw_reset(struct netxen_adapter *adapter)
772 u32 count, old_count;
773 u32 val, version, major, minor, build;
777 /* NX2031 firmware doesn't support heartbit */
778 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
781 /* last attempt had failed */
782 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
785 old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
787 for (i = 0; i < 10; i++) {
789 timeout = msleep_interruptible(200);
791 NXWR32(adapter, CRB_CMDPEG_STATE,
792 PHAN_INITIALIZE_FAILED);
796 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
797 if (count != old_count)
801 /* firmware is dead */
802 if (count == old_count)
805 /* check if we have got newer or different file firmware */
808 val = nx_get_fw_version(adapter);
810 version = NETXEN_DECODE_VERSION(val);
812 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
813 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
814 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
816 if (version > NETXEN_VERSION_CODE(major, minor, build))
819 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
820 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
822 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
823 fw_type = (val & 0x4) ?
824 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
826 if (adapter->fw_type != fw_type)
834 static char *fw_name[] = {
835 NX_P2_MN_ROMIMAGE_NAME,
836 NX_P3_CT_ROMIMAGE_NAME,
837 NX_P3_MN_ROMIMAGE_NAME,
838 NX_UNIFIED_ROMIMAGE_NAME,
839 NX_FLASH_ROMIMAGE_NAME,
843 netxen_load_firmware(struct netxen_adapter *adapter)
846 u32 i, flashaddr, size;
847 const struct firmware *fw = adapter->fw;
848 struct pci_dev *pdev = adapter->pdev;
850 dev_info(&pdev->dev, "loading firmware from %s\n",
851 fw_name[adapter->fw_type]);
853 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
854 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
859 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
861 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
862 flashaddr = NETXEN_BOOTLD_START;
864 for (i = 0; i < size; i++) {
865 data = cpu_to_le64(ptr64[i]);
867 if (adapter->pci_mem_write(adapter, flashaddr, data))
873 size = (__force u32)nx_get_fw_size(adapter) / 8;
875 ptr64 = (u64 *)nx_get_fw_offs(adapter);
876 flashaddr = NETXEN_IMAGE_START;
878 for (i = 0; i < size; i++) {
879 data = cpu_to_le64(ptr64[i]);
881 if (adapter->pci_mem_write(adapter,
891 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
892 flashaddr = NETXEN_BOOTLD_START;
894 for (i = 0; i < size; i++) {
895 if (netxen_rom_fast_read(adapter,
896 flashaddr, (int *)&lo) != 0)
898 if (netxen_rom_fast_read(adapter,
899 flashaddr + 4, (int *)&hi) != 0)
902 /* hi, lo are already in host endian byteorder */
903 data = (((u64)hi << 32) | lo);
905 if (adapter->pci_mem_write(adapter,
914 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
915 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
916 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
917 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
918 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
920 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
921 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
928 netxen_validate_firmware(struct netxen_adapter *adapter)
931 u32 ver, min_ver, bios, min_size;
932 struct pci_dev *pdev = adapter->pdev;
933 const struct firmware *fw = adapter->fw;
934 u8 fw_type = adapter->fw_type;
936 if (fw_type == NX_UNIFIED_ROMIMAGE) {
937 if (nx_set_product_offs(adapter))
940 min_size = NX_UNI_FW_MIN_SIZE;
942 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
943 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
946 min_size = NX_FW_MIN_SIZE;
949 if (fw->size < min_size)
952 val = nx_get_fw_version(adapter);
954 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
955 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
957 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
959 ver = NETXEN_DECODE_VERSION(val);
961 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
963 "%s: firmware version %d.%d.%d unsupported\n",
964 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
968 val = nx_get_bios_version(adapter);
969 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
970 if ((__force u32)val != bios) {
971 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
976 /* check if flashed firmware is newer */
977 if (netxen_rom_fast_read(adapter,
978 NX_FW_VERSION_OFFSET, (int *)&val))
980 val = NETXEN_DECODE_VERSION(val);
982 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
987 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
992 nx_get_next_fwtype(struct netxen_adapter *adapter)
996 switch (adapter->fw_type) {
997 case NX_UNKNOWN_ROMIMAGE:
998 fw_type = NX_UNIFIED_ROMIMAGE;
1001 case NX_UNIFIED_ROMIMAGE:
1002 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1003 fw_type = NX_FLASH_ROMIMAGE;
1004 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1005 fw_type = NX_P2_MN_ROMIMAGE;
1006 else if (netxen_p3_has_mn(adapter))
1007 fw_type = NX_P3_MN_ROMIMAGE;
1009 fw_type = NX_P3_CT_ROMIMAGE;
1012 case NX_P3_MN_ROMIMAGE:
1013 fw_type = NX_P3_CT_ROMIMAGE;
1016 case NX_P2_MN_ROMIMAGE:
1017 case NX_P3_CT_ROMIMAGE:
1019 fw_type = NX_FLASH_ROMIMAGE;
1023 adapter->fw_type = fw_type;
1027 netxen_p3_has_mn(struct netxen_adapter *adapter)
1029 u32 capability, flashed_ver;
1032 /* NX2031 always had MN */
1033 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1036 netxen_rom_fast_read(adapter,
1037 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1038 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1040 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1042 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1043 if (capability & NX_PEG_TUNE_MN_PRESENT)
1049 void netxen_request_firmware(struct netxen_adapter *adapter)
1051 struct pci_dev *pdev = adapter->pdev;
1054 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1057 nx_get_next_fwtype(adapter);
1059 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1062 rc = request_firmware(&adapter->fw,
1063 fw_name[adapter->fw_type], &pdev->dev);
1067 rc = netxen_validate_firmware(adapter);
1069 release_firmware(adapter->fw);
1078 netxen_release_firmware(struct netxen_adapter *adapter)
1081 release_firmware(adapter->fw);
1085 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1090 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1093 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1094 NETXEN_HOST_DUMMY_DMA_SIZE,
1095 &adapter->dummy_dma.phys_addr);
1096 if (adapter->dummy_dma.addr == NULL) {
1097 dev_err(&adapter->pdev->dev,
1098 "ERROR: Could not allocate dummy DMA memory\n");
1102 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1103 hi = (addr >> 32) & 0xffffffff;
1104 lo = addr & 0xffffffff;
1106 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1107 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1113 * NetXen DMA watchdog control:
1115 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1116 * Bit 1 : disable_request => 1 req disable dma watchdog
1117 * Bit 2 : enable_request => 1 req enable dma watchdog
1120 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1125 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1128 if (!adapter->dummy_dma.addr)
1131 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1132 if ((ctrl & 0x1) != 0) {
1133 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1135 while ((ctrl & 0x1) != 0) {
1139 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1147 pci_free_consistent(adapter->pdev,
1148 NETXEN_HOST_DUMMY_DMA_SIZE,
1149 adapter->dummy_dma.addr,
1150 adapter->dummy_dma.phys_addr);
1151 adapter->dummy_dma.addr = NULL;
1153 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1156 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1165 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1168 case PHAN_INITIALIZE_COMPLETE:
1169 case PHAN_INITIALIZE_ACK:
1171 case PHAN_INITIALIZE_FAILED:
1179 } while (--retries);
1181 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1184 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1189 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1195 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1197 if (val == PHAN_PEG_RCV_INITIALIZED)
1202 } while (--retries);
1205 printk(KERN_ERR "Receive Peg initialization not "
1206 "complete, state: 0x%x.\n", val);
1213 int netxen_init_firmware(struct netxen_adapter *adapter)
1217 err = netxen_receive_peg_ready(adapter);
1221 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1222 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1223 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1224 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1230 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1235 u8 link_status, module, duplex, autoneg;
1236 struct net_device *netdev = adapter->netdev;
1238 adapter->has_link_events = 1;
1240 cable_OUI = msg->body[1] & 0xffffffff;
1241 cable_len = (msg->body[1] >> 32) & 0xffff;
1242 link_speed = (msg->body[1] >> 48) & 0xffff;
1244 link_status = msg->body[2] & 0xff;
1245 duplex = (msg->body[2] >> 16) & 0xff;
1246 autoneg = (msg->body[2] >> 24) & 0xff;
1248 module = (msg->body[2] >> 8) & 0xff;
1249 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1250 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1251 netdev->name, cable_OUI, cable_len);
1252 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1253 printk(KERN_INFO "%s: unsupported cable length %d\n",
1254 netdev->name, cable_len);
1257 netxen_advert_link_change(adapter, link_status);
1259 /* update link parameters */
1260 if (duplex == LINKEVENT_FULL_DUPLEX)
1261 adapter->link_duplex = DUPLEX_FULL;
1263 adapter->link_duplex = DUPLEX_HALF;
1264 adapter->module_type = module;
1265 adapter->link_autoneg = autoneg;
1266 adapter->link_speed = link_speed;
1270 netxen_handle_fw_message(int desc_cnt, int index,
1271 struct nx_host_sds_ring *sds_ring)
1274 struct status_desc *desc;
1277 while (desc_cnt > 0 && i < 8) {
1278 desc = &sds_ring->desc_head[index];
1279 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1280 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1282 index = get_next_index(index, sds_ring->num_desc);
1286 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1288 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1289 netxen_handle_linkevent(sds_ring->adapter, &msg);
1297 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1298 struct nx_host_rds_ring *rds_ring,
1299 struct netxen_rx_buffer *buffer)
1301 struct sk_buff *skb;
1303 struct pci_dev *pdev = adapter->pdev;
1305 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1311 if (!adapter->ahw.cut_through)
1312 skb_reserve(skb, 2);
1314 dma = pci_map_single(pdev, skb->data,
1315 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1317 if (pci_dma_mapping_error(pdev, dma)) {
1318 dev_kfree_skb_any(skb);
1325 buffer->state = NETXEN_BUFFER_BUSY;
1330 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1331 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1333 struct netxen_rx_buffer *buffer;
1334 struct sk_buff *skb;
1336 buffer = &rds_ring->rx_buf_arr[index];
1338 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1339 PCI_DMA_FROMDEVICE);
1345 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1346 adapter->stats.csummed++;
1347 skb->ip_summed = CHECKSUM_UNNECESSARY;
1349 skb->ip_summed = CHECKSUM_NONE;
1351 skb->dev = adapter->netdev;
1355 buffer->state = NETXEN_BUFFER_FREE;
1359 static struct netxen_rx_buffer *
1360 netxen_process_rcv(struct netxen_adapter *adapter,
1361 struct nx_host_sds_ring *sds_ring,
1362 int ring, u64 sts_data0)
1364 struct net_device *netdev = adapter->netdev;
1365 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1366 struct netxen_rx_buffer *buffer;
1367 struct sk_buff *skb;
1368 struct nx_host_rds_ring *rds_ring;
1369 int index, length, cksum, pkt_offset;
1371 if (unlikely(ring >= adapter->max_rds_rings))
1374 rds_ring = &recv_ctx->rds_rings[ring];
1376 index = netxen_get_sts_refhandle(sts_data0);
1377 if (unlikely(index >= rds_ring->num_desc))
1380 buffer = &rds_ring->rx_buf_arr[index];
1382 length = netxen_get_sts_totallength(sts_data0);
1383 cksum = netxen_get_sts_status(sts_data0);
1384 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1386 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1390 if (length > rds_ring->skb_size)
1391 skb_put(skb, rds_ring->skb_size);
1393 skb_put(skb, length);
1397 skb_pull(skb, pkt_offset);
1399 skb->truesize = skb->len + sizeof(struct sk_buff);
1400 skb->protocol = eth_type_trans(skb, netdev);
1402 napi_gro_receive(&sds_ring->napi, skb);
1404 adapter->stats.rx_pkts++;
1405 adapter->stats.rxbytes += length;
1410 #define TCP_HDR_SIZE 20
1411 #define TCP_TS_OPTION_SIZE 12
1412 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1414 static struct netxen_rx_buffer *
1415 netxen_process_lro(struct netxen_adapter *adapter,
1416 struct nx_host_sds_ring *sds_ring,
1417 int ring, u64 sts_data0, u64 sts_data1)
1419 struct net_device *netdev = adapter->netdev;
1420 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1421 struct netxen_rx_buffer *buffer;
1422 struct sk_buff *skb;
1423 struct nx_host_rds_ring *rds_ring;
1426 bool push, timestamp;
1427 int l2_hdr_offset, l4_hdr_offset;
1429 u16 lro_length, length, data_offset;
1432 if (unlikely(ring > adapter->max_rds_rings))
1435 rds_ring = &recv_ctx->rds_rings[ring];
1437 index = netxen_get_lro_sts_refhandle(sts_data0);
1438 if (unlikely(index > rds_ring->num_desc))
1441 buffer = &rds_ring->rx_buf_arr[index];
1443 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1444 lro_length = netxen_get_lro_sts_length(sts_data0);
1445 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1446 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1447 push = netxen_get_lro_sts_push_flag(sts_data0);
1448 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1450 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1455 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1457 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1459 skb_put(skb, lro_length + data_offset);
1461 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1463 skb_pull(skb, l2_hdr_offset);
1464 skb->protocol = eth_type_trans(skb, netdev);
1466 iph = (struct iphdr *)skb->data;
1467 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1469 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1470 iph->tot_len = htons(length);
1472 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1474 th->seq = htonl(seq_number);
1478 netif_receive_skb(skb);
1480 adapter->stats.lro_pkts++;
1481 adapter->stats.rxbytes += length;
1486 #define netxen_merge_rx_buffers(list, head) \
1487 do { list_splice_tail_init(list, head); } while (0);
1490 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1492 struct netxen_adapter *adapter = sds_ring->adapter;
1494 struct list_head *cur;
1496 struct status_desc *desc;
1497 struct netxen_rx_buffer *rxbuf;
1499 u32 consumer = sds_ring->consumer;
1502 u64 sts_data0, sts_data1;
1503 int opcode, ring = 0, desc_cnt;
1505 while (count < max) {
1506 desc = &sds_ring->desc_head[consumer];
1507 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1509 if (!(sts_data0 & STATUS_OWNER_HOST))
1512 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1514 opcode = netxen_get_sts_opcode(sts_data0);
1517 case NETXEN_NIC_RXPKT_DESC:
1518 case NETXEN_OLD_RXPKT_DESC:
1519 case NETXEN_NIC_SYN_OFFLOAD:
1520 ring = netxen_get_sts_type(sts_data0);
1521 rxbuf = netxen_process_rcv(adapter, sds_ring,
1524 case NETXEN_NIC_LRO_DESC:
1525 ring = netxen_get_lro_sts_type(sts_data0);
1526 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1527 rxbuf = netxen_process_lro(adapter, sds_ring,
1528 ring, sts_data0, sts_data1);
1530 case NETXEN_NIC_RESPONSE_DESC:
1531 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1536 WARN_ON(desc_cnt > 1);
1539 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1542 for (; desc_cnt > 0; desc_cnt--) {
1543 desc = &sds_ring->desc_head[consumer];
1544 desc->status_desc_data[0] =
1545 cpu_to_le64(STATUS_OWNER_PHANTOM);
1546 consumer = get_next_index(consumer, sds_ring->num_desc);
1551 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1552 struct nx_host_rds_ring *rds_ring =
1553 &adapter->recv_ctx.rds_rings[ring];
1555 if (!list_empty(&sds_ring->free_list[ring])) {
1556 list_for_each(cur, &sds_ring->free_list[ring]) {
1557 rxbuf = list_entry(cur,
1558 struct netxen_rx_buffer, list);
1559 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1561 spin_lock(&rds_ring->lock);
1562 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1563 &rds_ring->free_list);
1564 spin_unlock(&rds_ring->lock);
1567 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1571 sds_ring->consumer = consumer;
1572 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1578 /* Process Command status ring */
1579 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1581 u32 sw_consumer, hw_consumer;
1583 struct netxen_cmd_buffer *buffer;
1584 struct pci_dev *pdev = adapter->pdev;
1585 struct net_device *netdev = adapter->netdev;
1586 struct netxen_skb_frag *frag;
1588 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1590 if (!spin_trylock(&adapter->tx_clean_lock))
1593 sw_consumer = tx_ring->sw_consumer;
1594 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1596 while (sw_consumer != hw_consumer) {
1597 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1599 frag = &buffer->frag_array[0];
1600 pci_unmap_single(pdev, frag->dma, frag->length,
1603 for (i = 1; i < buffer->frag_count; i++) {
1604 frag++; /* Get the next frag */
1605 pci_unmap_page(pdev, frag->dma, frag->length,
1610 adapter->stats.xmitfinished++;
1611 dev_kfree_skb_any(buffer->skb);
1615 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1616 if (++count >= MAX_STATUS_HANDLE)
1620 if (count && netif_running(netdev)) {
1621 tx_ring->sw_consumer = sw_consumer;
1625 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1626 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1627 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) {
1628 netif_wake_queue(netdev);
1629 adapter->tx_timeo_cnt = 0;
1631 __netif_tx_unlock(tx_ring->txq);
1635 * If everything is freed up to consumer then check if the ring is full
1636 * If the ring is full then check if more needs to be freed and
1637 * schedule the call back again.
1639 * This happens when there are 2 CPUs. One could be freeing and the
1640 * other filling it. If the ring is full when we get out of here and
1641 * the card has already interrupted the host then the host can miss the
1644 * There is still a possible race condition and the host could miss an
1645 * interrupt. The card has to take care of this.
1647 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1648 done = (sw_consumer == hw_consumer);
1649 spin_unlock(&adapter->tx_clean_lock);
1655 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1656 struct nx_host_rds_ring *rds_ring)
1658 struct rcv_desc *pdesc;
1659 struct netxen_rx_buffer *buffer;
1660 int producer, count = 0;
1661 netxen_ctx_msg msg = 0;
1662 struct list_head *head;
1664 producer = rds_ring->producer;
1666 spin_lock(&rds_ring->lock);
1667 head = &rds_ring->free_list;
1668 while (!list_empty(head)) {
1670 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1673 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1678 list_del(&buffer->list);
1680 /* make a rcv descriptor */
1681 pdesc = &rds_ring->desc_head[producer];
1682 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1683 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1684 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1686 producer = get_next_index(producer, rds_ring->num_desc);
1688 spin_unlock(&rds_ring->lock);
1691 rds_ring->producer = producer;
1692 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1693 (producer-1) & (rds_ring->num_desc-1));
1695 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1697 * Write a doorbell msg to tell phanmon of change in
1698 * receive ring producer
1699 * Only for firmware version < 4.0.0
1701 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1702 netxen_set_msg_privid(msg);
1703 netxen_set_msg_count(msg,
1705 (rds_ring->num_desc - 1)));
1706 netxen_set_msg_ctxid(msg, adapter->portnum);
1707 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1708 NXWRIO(adapter, DB_NORMALIZE(adapter,
1709 NETXEN_RCV_PRODUCER_OFFSET), msg);
1715 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1716 struct nx_host_rds_ring *rds_ring)
1718 struct rcv_desc *pdesc;
1719 struct netxen_rx_buffer *buffer;
1720 int producer, count = 0;
1721 struct list_head *head;
1723 producer = rds_ring->producer;
1724 if (!spin_trylock(&rds_ring->lock))
1727 head = &rds_ring->free_list;
1728 while (!list_empty(head)) {
1730 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1733 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1738 list_del(&buffer->list);
1740 /* make a rcv descriptor */
1741 pdesc = &rds_ring->desc_head[producer];
1742 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1743 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1744 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1746 producer = get_next_index(producer, rds_ring->num_desc);
1750 rds_ring->producer = producer;
1751 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1752 (producer - 1) & (rds_ring->num_desc - 1));
1754 spin_unlock(&rds_ring->lock);
1757 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1759 memset(&adapter->stats, 0, sizeof(adapter->stats));