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 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
623 if (ptab_descr == NULL)
626 entries = cpu_to_le32(ptab_descr->num_entries);
628 for (i = 0; i < entries; i++) {
630 __le32 flags, file_chiprev, offs;
631 u8 chiprev = adapter->ahw.revision_id;
632 int mn_present = netxen_p3_has_mn(adapter);
635 offs = cpu_to_le32(ptab_descr->findex) +
636 (i * cpu_to_le32(ptab_descr->entry_size));
637 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
638 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
639 NX_UNI_CHIP_REV_OFF));
641 flagbit = mn_present ? 1 : 2;
643 if ((chiprev == file_chiprev) &&
644 ((1ULL << flagbit) & flags)) {
645 adapter->file_prd_off = offs;
654 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
655 u32 section, u32 idx_offset)
657 const u8 *unirom = adapter->fw->data;
658 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
660 struct uni_table_desc *tab_desc;
663 tab_desc = nx_get_table_desc(unirom, section);
665 if (tab_desc == NULL)
668 offs = cpu_to_le32(tab_desc->findex) +
669 (cpu_to_le32(tab_desc->entry_size) * idx);
671 return (struct uni_data_desc *)&unirom[offs];
675 nx_get_bootld_offs(struct netxen_adapter *adapter)
677 u32 offs = NETXEN_BOOTLD_START;
679 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
680 offs = cpu_to_le32((nx_get_data_desc(adapter,
681 NX_UNI_DIR_SECT_BOOTLD,
682 NX_UNI_BOOTLD_IDX_OFF))->findex);
684 return (u8 *)&adapter->fw->data[offs];
688 nx_get_fw_offs(struct netxen_adapter *adapter)
690 u32 offs = NETXEN_IMAGE_START;
692 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
693 offs = cpu_to_le32((nx_get_data_desc(adapter,
695 NX_UNI_FIRMWARE_IDX_OFF))->findex);
697 return (u8 *)&adapter->fw->data[offs];
701 nx_get_fw_size(struct netxen_adapter *adapter)
703 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
704 return cpu_to_le32((nx_get_data_desc(adapter,
706 NX_UNI_FIRMWARE_IDX_OFF))->size);
709 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
713 nx_get_fw_version(struct netxen_adapter *adapter)
715 struct uni_data_desc *fw_data_desc;
716 const struct firmware *fw = adapter->fw;
717 __le32 major, minor, sub;
721 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
723 fw_data_desc = nx_get_data_desc(adapter,
724 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
725 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
726 cpu_to_le32(fw_data_desc->size) - 17;
728 for (i = 0; i < 12; i++) {
729 if (!strncmp(&ver_str[i], "REV=", 4)) {
730 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
731 &major, &minor, &sub);
739 return major + (minor << 8) + (sub << 16);
742 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
746 nx_get_bios_version(struct netxen_adapter *adapter)
748 const struct firmware *fw = adapter->fw;
749 __le32 bios_ver, prd_off = adapter->file_prd_off;
751 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
752 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
753 + NX_UNI_BIOS_VERSION_OFF));
754 return (bios_ver << 24) + ((bios_ver >> 8) & 0xff00) +
757 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
762 netxen_need_fw_reset(struct netxen_adapter *adapter)
764 u32 count, old_count;
765 u32 val, version, major, minor, build;
769 /* NX2031 firmware doesn't support heartbit */
770 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
773 /* last attempt had failed */
774 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
777 old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
779 for (i = 0; i < 10; i++) {
781 timeout = msleep_interruptible(200);
783 NXWR32(adapter, CRB_CMDPEG_STATE,
784 PHAN_INITIALIZE_FAILED);
788 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
789 if (count != old_count)
793 /* firmware is dead */
794 if (count == old_count)
797 /* check if we have got newer or different file firmware */
800 val = nx_get_fw_version(adapter);
802 version = NETXEN_DECODE_VERSION(val);
804 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
805 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
806 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
808 if (version > NETXEN_VERSION_CODE(major, minor, build))
811 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
812 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
814 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
815 fw_type = (val & 0x4) ?
816 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
818 if (adapter->fw_type != fw_type)
826 static char *fw_name[] = {
827 NX_P2_MN_ROMIMAGE_NAME,
828 NX_P3_CT_ROMIMAGE_NAME,
829 NX_P3_MN_ROMIMAGE_NAME,
830 NX_UNIFIED_ROMIMAGE_NAME,
831 NX_FLASH_ROMIMAGE_NAME,
835 netxen_load_firmware(struct netxen_adapter *adapter)
838 u32 i, flashaddr, size;
839 const struct firmware *fw = adapter->fw;
840 struct pci_dev *pdev = adapter->pdev;
842 dev_info(&pdev->dev, "loading firmware from %s\n",
843 fw_name[adapter->fw_type]);
845 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
846 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
851 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
853 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
854 flashaddr = NETXEN_BOOTLD_START;
856 for (i = 0; i < size; i++) {
857 data = cpu_to_le64(ptr64[i]);
859 if (adapter->pci_mem_write(adapter, flashaddr, data))
865 size = (__force u32)nx_get_fw_size(adapter) / 8;
867 ptr64 = (u64 *)nx_get_fw_offs(adapter);
868 flashaddr = NETXEN_IMAGE_START;
870 for (i = 0; i < size; i++) {
871 data = cpu_to_le64(ptr64[i]);
873 if (adapter->pci_mem_write(adapter,
883 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
884 flashaddr = NETXEN_BOOTLD_START;
886 for (i = 0; i < size; i++) {
887 if (netxen_rom_fast_read(adapter,
888 flashaddr, (int *)&lo) != 0)
890 if (netxen_rom_fast_read(adapter,
891 flashaddr + 4, (int *)&hi) != 0)
894 /* hi, lo are already in host endian byteorder */
895 data = (((u64)hi << 32) | lo);
897 if (adapter->pci_mem_write(adapter,
906 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
907 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
908 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
909 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
910 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
912 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
913 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
920 netxen_validate_firmware(struct netxen_adapter *adapter)
923 u32 ver, min_ver, bios, min_size;
924 struct pci_dev *pdev = adapter->pdev;
925 const struct firmware *fw = adapter->fw;
926 u8 fw_type = adapter->fw_type;
928 if (fw_type == NX_UNIFIED_ROMIMAGE) {
929 if (nx_set_product_offs(adapter))
932 min_size = NX_UNI_FW_MIN_SIZE;
934 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
935 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
938 min_size = NX_FW_MIN_SIZE;
941 if (fw->size < min_size)
944 val = nx_get_fw_version(adapter);
946 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
947 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
949 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
951 ver = NETXEN_DECODE_VERSION(val);
953 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
955 "%s: firmware version %d.%d.%d unsupported\n",
956 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
960 val = nx_get_bios_version(adapter);
961 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
962 if ((__force u32)val != bios) {
963 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
968 /* check if flashed firmware is newer */
969 if (netxen_rom_fast_read(adapter,
970 NX_FW_VERSION_OFFSET, (int *)&val))
972 val = NETXEN_DECODE_VERSION(val);
974 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
979 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
984 nx_get_next_fwtype(struct netxen_adapter *adapter)
988 switch (adapter->fw_type) {
989 case NX_UNKNOWN_ROMIMAGE:
990 fw_type = NX_UNIFIED_ROMIMAGE;
993 case NX_UNIFIED_ROMIMAGE:
994 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
995 fw_type = NX_FLASH_ROMIMAGE;
996 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
997 fw_type = NX_P2_MN_ROMIMAGE;
998 else if (netxen_p3_has_mn(adapter))
999 fw_type = NX_P3_MN_ROMIMAGE;
1001 fw_type = NX_P3_CT_ROMIMAGE;
1004 case NX_P3_MN_ROMIMAGE:
1005 fw_type = NX_P3_CT_ROMIMAGE;
1008 case NX_P2_MN_ROMIMAGE:
1009 case NX_P3_CT_ROMIMAGE:
1011 fw_type = NX_FLASH_ROMIMAGE;
1015 adapter->fw_type = fw_type;
1019 netxen_p3_has_mn(struct netxen_adapter *adapter)
1021 u32 capability, flashed_ver;
1024 netxen_rom_fast_read(adapter,
1025 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1026 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1028 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1030 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1031 if (capability & NX_PEG_TUNE_MN_PRESENT)
1037 void netxen_request_firmware(struct netxen_adapter *adapter)
1039 struct pci_dev *pdev = adapter->pdev;
1042 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1045 nx_get_next_fwtype(adapter);
1047 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1050 rc = request_firmware(&adapter->fw,
1051 fw_name[adapter->fw_type], &pdev->dev);
1055 rc = netxen_validate_firmware(adapter);
1057 release_firmware(adapter->fw);
1066 netxen_release_firmware(struct netxen_adapter *adapter)
1069 release_firmware(adapter->fw);
1073 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1078 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1081 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1082 NETXEN_HOST_DUMMY_DMA_SIZE,
1083 &adapter->dummy_dma.phys_addr);
1084 if (adapter->dummy_dma.addr == NULL) {
1085 dev_err(&adapter->pdev->dev,
1086 "ERROR: Could not allocate dummy DMA memory\n");
1090 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1091 hi = (addr >> 32) & 0xffffffff;
1092 lo = addr & 0xffffffff;
1094 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1095 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1101 * NetXen DMA watchdog control:
1103 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1104 * Bit 1 : disable_request => 1 req disable dma watchdog
1105 * Bit 2 : enable_request => 1 req enable dma watchdog
1108 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1113 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1116 if (!adapter->dummy_dma.addr)
1119 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1120 if ((ctrl & 0x1) != 0) {
1121 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1123 while ((ctrl & 0x1) != 0) {
1127 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1135 pci_free_consistent(adapter->pdev,
1136 NETXEN_HOST_DUMMY_DMA_SIZE,
1137 adapter->dummy_dma.addr,
1138 adapter->dummy_dma.phys_addr);
1139 adapter->dummy_dma.addr = NULL;
1141 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1144 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1153 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1156 case PHAN_INITIALIZE_COMPLETE:
1157 case PHAN_INITIALIZE_ACK:
1159 case PHAN_INITIALIZE_FAILED:
1167 } while (--retries);
1169 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1172 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1177 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1183 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1185 if (val == PHAN_PEG_RCV_INITIALIZED)
1190 } while (--retries);
1193 printk(KERN_ERR "Receive Peg initialization not "
1194 "complete, state: 0x%x.\n", val);
1201 int netxen_init_firmware(struct netxen_adapter *adapter)
1205 err = netxen_receive_peg_ready(adapter);
1209 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1210 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1211 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1212 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1218 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1223 u8 link_status, module, duplex, autoneg;
1224 struct net_device *netdev = adapter->netdev;
1226 adapter->has_link_events = 1;
1228 cable_OUI = msg->body[1] & 0xffffffff;
1229 cable_len = (msg->body[1] >> 32) & 0xffff;
1230 link_speed = (msg->body[1] >> 48) & 0xffff;
1232 link_status = msg->body[2] & 0xff;
1233 duplex = (msg->body[2] >> 16) & 0xff;
1234 autoneg = (msg->body[2] >> 24) & 0xff;
1236 module = (msg->body[2] >> 8) & 0xff;
1237 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1238 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1239 netdev->name, cable_OUI, cable_len);
1240 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1241 printk(KERN_INFO "%s: unsupported cable length %d\n",
1242 netdev->name, cable_len);
1245 netxen_advert_link_change(adapter, link_status);
1247 /* update link parameters */
1248 if (duplex == LINKEVENT_FULL_DUPLEX)
1249 adapter->link_duplex = DUPLEX_FULL;
1251 adapter->link_duplex = DUPLEX_HALF;
1252 adapter->module_type = module;
1253 adapter->link_autoneg = autoneg;
1254 adapter->link_speed = link_speed;
1258 netxen_handle_fw_message(int desc_cnt, int index,
1259 struct nx_host_sds_ring *sds_ring)
1262 struct status_desc *desc;
1265 while (desc_cnt > 0 && i < 8) {
1266 desc = &sds_ring->desc_head[index];
1267 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1268 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1270 index = get_next_index(index, sds_ring->num_desc);
1274 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1276 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1277 netxen_handle_linkevent(sds_ring->adapter, &msg);
1285 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1286 struct nx_host_rds_ring *rds_ring,
1287 struct netxen_rx_buffer *buffer)
1289 struct sk_buff *skb;
1291 struct pci_dev *pdev = adapter->pdev;
1293 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1299 if (!adapter->ahw.cut_through)
1300 skb_reserve(skb, 2);
1302 dma = pci_map_single(pdev, skb->data,
1303 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1305 if (pci_dma_mapping_error(pdev, dma)) {
1306 dev_kfree_skb_any(skb);
1313 buffer->state = NETXEN_BUFFER_BUSY;
1318 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1319 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1321 struct netxen_rx_buffer *buffer;
1322 struct sk_buff *skb;
1324 buffer = &rds_ring->rx_buf_arr[index];
1326 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1327 PCI_DMA_FROMDEVICE);
1333 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1334 adapter->stats.csummed++;
1335 skb->ip_summed = CHECKSUM_UNNECESSARY;
1337 skb->ip_summed = CHECKSUM_NONE;
1339 skb->dev = adapter->netdev;
1343 buffer->state = NETXEN_BUFFER_FREE;
1347 static struct netxen_rx_buffer *
1348 netxen_process_rcv(struct netxen_adapter *adapter,
1349 struct nx_host_sds_ring *sds_ring,
1350 int ring, u64 sts_data0)
1352 struct net_device *netdev = adapter->netdev;
1353 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1354 struct netxen_rx_buffer *buffer;
1355 struct sk_buff *skb;
1356 struct nx_host_rds_ring *rds_ring;
1357 int index, length, cksum, pkt_offset;
1359 if (unlikely(ring >= adapter->max_rds_rings))
1362 rds_ring = &recv_ctx->rds_rings[ring];
1364 index = netxen_get_sts_refhandle(sts_data0);
1365 if (unlikely(index >= rds_ring->num_desc))
1368 buffer = &rds_ring->rx_buf_arr[index];
1370 length = netxen_get_sts_totallength(sts_data0);
1371 cksum = netxen_get_sts_status(sts_data0);
1372 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1374 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1378 if (length > rds_ring->skb_size)
1379 skb_put(skb, rds_ring->skb_size);
1381 skb_put(skb, length);
1385 skb_pull(skb, pkt_offset);
1387 skb->truesize = skb->len + sizeof(struct sk_buff);
1388 skb->protocol = eth_type_trans(skb, netdev);
1390 napi_gro_receive(&sds_ring->napi, skb);
1392 adapter->stats.rx_pkts++;
1393 adapter->stats.rxbytes += length;
1398 #define TCP_HDR_SIZE 20
1399 #define TCP_TS_OPTION_SIZE 12
1400 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1402 static struct netxen_rx_buffer *
1403 netxen_process_lro(struct netxen_adapter *adapter,
1404 struct nx_host_sds_ring *sds_ring,
1405 int ring, u64 sts_data0, u64 sts_data1)
1407 struct net_device *netdev = adapter->netdev;
1408 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1409 struct netxen_rx_buffer *buffer;
1410 struct sk_buff *skb;
1411 struct nx_host_rds_ring *rds_ring;
1414 bool push, timestamp;
1415 int l2_hdr_offset, l4_hdr_offset;
1417 u16 lro_length, length, data_offset;
1420 if (unlikely(ring > adapter->max_rds_rings))
1423 rds_ring = &recv_ctx->rds_rings[ring];
1425 index = netxen_get_lro_sts_refhandle(sts_data0);
1426 if (unlikely(index > rds_ring->num_desc))
1429 buffer = &rds_ring->rx_buf_arr[index];
1431 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1432 lro_length = netxen_get_lro_sts_length(sts_data0);
1433 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1434 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1435 push = netxen_get_lro_sts_push_flag(sts_data0);
1436 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1438 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1443 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1445 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1447 skb_put(skb, lro_length + data_offset);
1449 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1451 skb_pull(skb, l2_hdr_offset);
1452 skb->protocol = eth_type_trans(skb, netdev);
1454 iph = (struct iphdr *)skb->data;
1455 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1457 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1458 iph->tot_len = htons(length);
1460 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1462 th->seq = htonl(seq_number);
1466 netif_receive_skb(skb);
1468 adapter->stats.lro_pkts++;
1469 adapter->stats.rxbytes += length;
1474 #define netxen_merge_rx_buffers(list, head) \
1475 do { list_splice_tail_init(list, head); } while (0);
1478 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1480 struct netxen_adapter *adapter = sds_ring->adapter;
1482 struct list_head *cur;
1484 struct status_desc *desc;
1485 struct netxen_rx_buffer *rxbuf;
1487 u32 consumer = sds_ring->consumer;
1490 u64 sts_data0, sts_data1;
1491 int opcode, ring = 0, desc_cnt;
1493 while (count < max) {
1494 desc = &sds_ring->desc_head[consumer];
1495 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1497 if (!(sts_data0 & STATUS_OWNER_HOST))
1500 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1502 opcode = netxen_get_sts_opcode(sts_data0);
1505 case NETXEN_NIC_RXPKT_DESC:
1506 case NETXEN_OLD_RXPKT_DESC:
1507 case NETXEN_NIC_SYN_OFFLOAD:
1508 ring = netxen_get_sts_type(sts_data0);
1509 rxbuf = netxen_process_rcv(adapter, sds_ring,
1512 case NETXEN_NIC_LRO_DESC:
1513 ring = netxen_get_lro_sts_type(sts_data0);
1514 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1515 rxbuf = netxen_process_lro(adapter, sds_ring,
1516 ring, sts_data0, sts_data1);
1518 case NETXEN_NIC_RESPONSE_DESC:
1519 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1524 WARN_ON(desc_cnt > 1);
1527 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1530 for (; desc_cnt > 0; desc_cnt--) {
1531 desc = &sds_ring->desc_head[consumer];
1532 desc->status_desc_data[0] =
1533 cpu_to_le64(STATUS_OWNER_PHANTOM);
1534 consumer = get_next_index(consumer, sds_ring->num_desc);
1539 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1540 struct nx_host_rds_ring *rds_ring =
1541 &adapter->recv_ctx.rds_rings[ring];
1543 if (!list_empty(&sds_ring->free_list[ring])) {
1544 list_for_each(cur, &sds_ring->free_list[ring]) {
1545 rxbuf = list_entry(cur,
1546 struct netxen_rx_buffer, list);
1547 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1549 spin_lock(&rds_ring->lock);
1550 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1551 &rds_ring->free_list);
1552 spin_unlock(&rds_ring->lock);
1555 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1559 sds_ring->consumer = consumer;
1560 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1566 /* Process Command status ring */
1567 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1569 u32 sw_consumer, hw_consumer;
1571 struct netxen_cmd_buffer *buffer;
1572 struct pci_dev *pdev = adapter->pdev;
1573 struct net_device *netdev = adapter->netdev;
1574 struct netxen_skb_frag *frag;
1576 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1578 if (!spin_trylock(&adapter->tx_clean_lock))
1581 sw_consumer = tx_ring->sw_consumer;
1582 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1584 while (sw_consumer != hw_consumer) {
1585 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1587 frag = &buffer->frag_array[0];
1588 pci_unmap_single(pdev, frag->dma, frag->length,
1591 for (i = 1; i < buffer->frag_count; i++) {
1592 frag++; /* Get the next frag */
1593 pci_unmap_page(pdev, frag->dma, frag->length,
1598 adapter->stats.xmitfinished++;
1599 dev_kfree_skb_any(buffer->skb);
1603 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1604 if (++count >= MAX_STATUS_HANDLE)
1608 if (count && netif_running(netdev)) {
1609 tx_ring->sw_consumer = sw_consumer;
1613 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1614 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1615 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) {
1616 netif_wake_queue(netdev);
1617 adapter->tx_timeo_cnt = 0;
1619 __netif_tx_unlock(tx_ring->txq);
1623 * If everything is freed up to consumer then check if the ring is full
1624 * If the ring is full then check if more needs to be freed and
1625 * schedule the call back again.
1627 * This happens when there are 2 CPUs. One could be freeing and the
1628 * other filling it. If the ring is full when we get out of here and
1629 * the card has already interrupted the host then the host can miss the
1632 * There is still a possible race condition and the host could miss an
1633 * interrupt. The card has to take care of this.
1635 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1636 done = (sw_consumer == hw_consumer);
1637 spin_unlock(&adapter->tx_clean_lock);
1643 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1644 struct nx_host_rds_ring *rds_ring)
1646 struct rcv_desc *pdesc;
1647 struct netxen_rx_buffer *buffer;
1648 int producer, count = 0;
1649 netxen_ctx_msg msg = 0;
1650 struct list_head *head;
1652 producer = rds_ring->producer;
1654 spin_lock(&rds_ring->lock);
1655 head = &rds_ring->free_list;
1656 while (!list_empty(head)) {
1658 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1661 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1666 list_del(&buffer->list);
1668 /* make a rcv descriptor */
1669 pdesc = &rds_ring->desc_head[producer];
1670 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1671 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1672 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1674 producer = get_next_index(producer, rds_ring->num_desc);
1676 spin_unlock(&rds_ring->lock);
1679 rds_ring->producer = producer;
1680 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1681 (producer-1) & (rds_ring->num_desc-1));
1683 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1685 * Write a doorbell msg to tell phanmon of change in
1686 * receive ring producer
1687 * Only for firmware version < 4.0.0
1689 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1690 netxen_set_msg_privid(msg);
1691 netxen_set_msg_count(msg,
1693 (rds_ring->num_desc - 1)));
1694 netxen_set_msg_ctxid(msg, adapter->portnum);
1695 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1696 NXWRIO(adapter, DB_NORMALIZE(adapter,
1697 NETXEN_RCV_PRODUCER_OFFSET), msg);
1703 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1704 struct nx_host_rds_ring *rds_ring)
1706 struct rcv_desc *pdesc;
1707 struct netxen_rx_buffer *buffer;
1708 int producer, count = 0;
1709 struct list_head *head;
1711 producer = rds_ring->producer;
1712 if (!spin_trylock(&rds_ring->lock))
1715 head = &rds_ring->free_list;
1716 while (!list_empty(head)) {
1718 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1721 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1726 list_del(&buffer->list);
1728 /* make a rcv descriptor */
1729 pdesc = &rds_ring->desc_head[producer];
1730 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1731 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1732 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1734 producer = get_next_index(producer, rds_ring->num_desc);
1738 rds_ring->producer = producer;
1739 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1740 (producer - 1) & (rds_ring->num_desc - 1));
1742 spin_unlock(&rds_ring->lock);
1745 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1747 memset(&adapter->stats, 0, sizeof(adapter->stats));