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);
188 adapter->tx_ring = NULL;
191 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
193 struct netxen_recv_context *recv_ctx;
194 struct nx_host_rds_ring *rds_ring;
195 struct nx_host_sds_ring *sds_ring;
196 struct nx_host_tx_ring *tx_ring;
197 struct netxen_rx_buffer *rx_buf;
200 struct netxen_cmd_buffer *cmd_buf_arr;
201 struct net_device *netdev = adapter->netdev;
202 struct pci_dev *pdev = adapter->pdev;
204 size = sizeof(struct nx_host_tx_ring);
205 tx_ring = kzalloc(size, GFP_KERNEL);
206 if (tx_ring == NULL) {
207 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
211 adapter->tx_ring = tx_ring;
213 tx_ring->num_desc = adapter->num_txd;
214 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
216 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
217 if (cmd_buf_arr == NULL) {
218 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
222 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
223 tx_ring->cmd_buf_arr = cmd_buf_arr;
225 recv_ctx = &adapter->recv_ctx;
227 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
228 rds_ring = kzalloc(size, GFP_KERNEL);
229 if (rds_ring == NULL) {
230 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
234 recv_ctx->rds_rings = rds_ring;
236 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
237 rds_ring = &recv_ctx->rds_rings[ring];
239 case RCV_RING_NORMAL:
240 rds_ring->num_desc = adapter->num_rxd;
241 if (adapter->ahw.cut_through) {
243 NX_CT_DEFAULT_RX_BUF_LEN;
245 NX_CT_DEFAULT_RX_BUF_LEN;
247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
249 NX_P3_RX_BUF_MAX_LEN;
252 NX_P2_RX_BUF_MAX_LEN;
254 rds_ring->dma_size + NET_IP_ALIGN;
259 rds_ring->num_desc = adapter->num_jumbo_rxd;
260 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
262 NX_P3_RX_JUMBO_BUF_MAX_LEN;
265 NX_P2_RX_JUMBO_BUF_MAX_LEN;
267 if (adapter->capabilities & NX_CAP0_HW_LRO)
268 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
271 rds_ring->dma_size + NET_IP_ALIGN;
275 rds_ring->num_desc = adapter->num_lro_rxd;
276 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
277 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
281 rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
282 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
283 if (rds_ring->rx_buf_arr == NULL) {
284 printk(KERN_ERR "%s: Failed to allocate "
285 "rx buffer ring %d\n",
287 /* free whatever was already allocated */
290 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
291 INIT_LIST_HEAD(&rds_ring->free_list);
293 * Now go through all of them, set reference handles
294 * and put them in the queues.
296 rx_buf = rds_ring->rx_buf_arr;
297 for (i = 0; i < rds_ring->num_desc; i++) {
298 list_add_tail(&rx_buf->list,
299 &rds_ring->free_list);
300 rx_buf->ref_handle = i;
301 rx_buf->state = NETXEN_BUFFER_FREE;
304 spin_lock_init(&rds_ring->lock);
307 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
308 sds_ring = &recv_ctx->sds_rings[ring];
309 sds_ring->irq = adapter->msix_entries[ring].vector;
310 sds_ring->adapter = adapter;
311 sds_ring->num_desc = adapter->num_rxd;
313 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
314 INIT_LIST_HEAD(&sds_ring->free_list[i]);
320 netxen_free_sw_resources(adapter);
325 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
326 * address to external PCI CRB address.
328 static u32 netxen_decode_crb_addr(u32 addr)
331 u32 base_addr, offset, pci_base;
333 crb_addr_transform_setup();
335 pci_base = NETXEN_ADDR_ERROR;
336 base_addr = addr & 0xfff00000;
337 offset = addr & 0x000fffff;
339 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
340 if (crb_addr_xform[i] == base_addr) {
345 if (pci_base == NETXEN_ADDR_ERROR)
348 return (pci_base + offset);
351 #define NETXEN_MAX_ROM_WAIT_USEC 100
353 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
361 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
363 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
364 dev_err(&adapter->pdev->dev,
365 "Timeout reached waiting for rom done");
373 static int do_rom_fast_read(struct netxen_adapter *adapter,
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
377 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
378 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
379 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
380 if (netxen_wait_rom_done(adapter)) {
381 printk("Error waiting for rom done\n");
384 /* reset abyte_cnt and dummy_byte_cnt */
385 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
387 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
389 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
393 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
394 u8 *bytes, size_t size)
399 for (addridx = addr; addridx < (addr + size); addridx += 4) {
401 ret = do_rom_fast_read(adapter, addridx, &v);
404 *(__le32 *)bytes = cpu_to_le32(v);
412 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
413 u8 *bytes, size_t size)
417 ret = netxen_rom_lock(adapter);
421 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
423 netxen_rom_unlock(adapter);
427 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
431 if (netxen_rom_lock(adapter) != 0)
434 ret = do_rom_fast_read(adapter, addr, valp);
435 netxen_rom_unlock(adapter);
439 #define NETXEN_BOARDTYPE 0x4008
440 #define NETXEN_BOARDNUM 0x400c
441 #define NETXEN_CHIPNUM 0x4010
443 int netxen_pinit_from_rom(struct netxen_adapter *adapter)
446 int i, n, init_delay = 0;
447 struct crb_addr_pair *buf;
452 netxen_rom_lock(adapter);
453 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
454 netxen_rom_unlock(adapter);
456 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
457 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
459 netxen_rom_fast_read(adapter, 4, &n) != 0) {
460 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
461 "n: %08x\n", netxen_nic_driver_name, n);
464 offset = n & 0xffffU;
465 n = (n >> 16) & 0xffffU;
467 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
469 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
470 "n: %08x\n", netxen_nic_driver_name, n);
478 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
479 " initialized.\n", __func__, n);
483 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
485 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
486 netxen_nic_driver_name);
490 for (i = 0; i < n; i++) {
491 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
492 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
502 for (i = 0; i < n; i++) {
504 off = netxen_decode_crb_addr(buf[i].addr);
505 if (off == NETXEN_ADDR_ERROR) {
506 printk(KERN_ERR"CRB init value out of range %x\n",
510 off += NETXEN_PCI_CRBSPACE;
515 /* skipping cold reboot MAGIC */
516 if (off == NETXEN_CAM_RAM(0x1fc))
519 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
520 if (off == (NETXEN_CRB_I2C0 + 0x1c))
522 /* do not reset PCI */
523 if (off == (ROMUSB_GLB + 0xbc))
525 if (off == (ROMUSB_GLB + 0xa8))
527 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
529 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
531 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
533 if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
535 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
536 !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
537 buf[i].data = 0x1020;
538 /* skip the function enable register */
539 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
541 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
543 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
548 /* After writing this register, HW needs time for CRB */
549 /* to quiet down (else crb_window returns 0xffffffff) */
550 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
552 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
553 /* hold xdma in reset also */
554 buf[i].data = NETXEN_NIC_XDMA_RESET;
555 buf[i].data = 0x8000ff;
559 NXWR32(adapter, off, buf[i].data);
565 /* disable_peg_cache_all */
567 /* unreset_net_cache */
568 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
569 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
570 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
573 /* p2dn replyCount */
574 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
575 /* disable_peg_cache 0 */
576 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
577 /* disable_peg_cache 1 */
578 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
583 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
584 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
586 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
587 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
589 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
590 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
592 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
593 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
597 static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
600 struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
601 __le32 entries = cpu_to_le32(directory->num_entries);
603 for (i = 0; i < entries; i++) {
605 __le32 offs = cpu_to_le32(directory->findex) +
606 (i * cpu_to_le32(directory->entry_size));
607 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
609 if (tab_type == section)
610 return (struct uni_table_desc *) &unirom[offs];
617 nx_set_product_offs(struct netxen_adapter *adapter)
619 struct uni_table_desc *ptab_descr;
620 const u8 *unirom = adapter->fw->data;
624 int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
625 1 : netxen_p3_has_mn(adapter);
627 ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
628 if (ptab_descr == NULL)
631 entries = cpu_to_le32(ptab_descr->num_entries);
634 for (i = 0; i < entries; i++) {
636 __le32 flags, file_chiprev, offs;
637 u8 chiprev = adapter->ahw.revision_id;
640 offs = cpu_to_le32(ptab_descr->findex) +
641 (i * cpu_to_le32(ptab_descr->entry_size));
642 flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
643 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
644 NX_UNI_CHIP_REV_OFF));
646 flagbit = mn_present ? 1 : 2;
648 if ((chiprev == file_chiprev) &&
649 ((1ULL << flagbit) & flags)) {
650 adapter->file_prd_off = offs;
655 if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
664 static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
665 u32 section, u32 idx_offset)
667 const u8 *unirom = adapter->fw->data;
668 int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
670 struct uni_table_desc *tab_desc;
673 tab_desc = nx_get_table_desc(unirom, section);
675 if (tab_desc == NULL)
678 offs = cpu_to_le32(tab_desc->findex) +
679 (cpu_to_le32(tab_desc->entry_size) * idx);
681 return (struct uni_data_desc *)&unirom[offs];
685 nx_get_bootld_offs(struct netxen_adapter *adapter)
687 u32 offs = NETXEN_BOOTLD_START;
689 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
690 offs = cpu_to_le32((nx_get_data_desc(adapter,
691 NX_UNI_DIR_SECT_BOOTLD,
692 NX_UNI_BOOTLD_IDX_OFF))->findex);
694 return (u8 *)&adapter->fw->data[offs];
698 nx_get_fw_offs(struct netxen_adapter *adapter)
700 u32 offs = NETXEN_IMAGE_START;
702 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
703 offs = cpu_to_le32((nx_get_data_desc(adapter,
705 NX_UNI_FIRMWARE_IDX_OFF))->findex);
707 return (u8 *)&adapter->fw->data[offs];
711 nx_get_fw_size(struct netxen_adapter *adapter)
713 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
714 return cpu_to_le32((nx_get_data_desc(adapter,
716 NX_UNI_FIRMWARE_IDX_OFF))->size);
719 *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
723 nx_get_fw_version(struct netxen_adapter *adapter)
725 struct uni_data_desc *fw_data_desc;
726 const struct firmware *fw = adapter->fw;
727 __le32 major, minor, sub;
731 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
733 fw_data_desc = nx_get_data_desc(adapter,
734 NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
735 ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
736 cpu_to_le32(fw_data_desc->size) - 17;
738 for (i = 0; i < 12; i++) {
739 if (!strncmp(&ver_str[i], "REV=", 4)) {
740 ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
741 &major, &minor, &sub);
749 return major + (minor << 8) + (sub << 16);
752 return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
756 nx_get_bios_version(struct netxen_adapter *adapter)
758 const struct firmware *fw = adapter->fw;
759 __le32 bios_ver, prd_off = adapter->file_prd_off;
761 if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
762 bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
763 + NX_UNI_BIOS_VERSION_OFF));
764 return (bios_ver << 24) + ((bios_ver >> 8) & 0xff00) +
767 return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
772 netxen_need_fw_reset(struct netxen_adapter *adapter)
774 u32 count, old_count;
775 u32 val, version, major, minor, build;
779 /* NX2031 firmware doesn't support heartbit */
780 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
783 /* last attempt had failed */
784 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
787 old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
789 for (i = 0; i < 10; i++) {
791 timeout = msleep_interruptible(200);
793 NXWR32(adapter, CRB_CMDPEG_STATE,
794 PHAN_INITIALIZE_FAILED);
798 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
799 if (count != old_count)
803 /* firmware is dead */
804 if (count == old_count)
807 /* check if we have got newer or different file firmware */
810 val = nx_get_fw_version(adapter);
812 version = NETXEN_DECODE_VERSION(val);
814 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
815 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
816 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
818 if (version > NETXEN_VERSION_CODE(major, minor, build))
821 if (version == NETXEN_VERSION_CODE(major, minor, build) &&
822 adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
824 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
825 fw_type = (val & 0x4) ?
826 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
828 if (adapter->fw_type != fw_type)
836 static char *fw_name[] = {
837 NX_P2_MN_ROMIMAGE_NAME,
838 NX_P3_CT_ROMIMAGE_NAME,
839 NX_P3_MN_ROMIMAGE_NAME,
840 NX_UNIFIED_ROMIMAGE_NAME,
841 NX_FLASH_ROMIMAGE_NAME,
845 netxen_load_firmware(struct netxen_adapter *adapter)
848 u32 i, flashaddr, size;
849 const struct firmware *fw = adapter->fw;
850 struct pci_dev *pdev = adapter->pdev;
852 dev_info(&pdev->dev, "loading firmware from %s\n",
853 fw_name[adapter->fw_type]);
855 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
856 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
861 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
863 ptr64 = (u64 *)nx_get_bootld_offs(adapter);
864 flashaddr = NETXEN_BOOTLD_START;
866 for (i = 0; i < size; i++) {
867 data = cpu_to_le64(ptr64[i]);
869 if (adapter->pci_mem_write(adapter, flashaddr, data))
875 size = (__force u32)nx_get_fw_size(adapter) / 8;
877 ptr64 = (u64 *)nx_get_fw_offs(adapter);
878 flashaddr = NETXEN_IMAGE_START;
880 for (i = 0; i < size; i++) {
881 data = cpu_to_le64(ptr64[i]);
883 if (adapter->pci_mem_write(adapter,
893 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
894 flashaddr = NETXEN_BOOTLD_START;
896 for (i = 0; i < size; i++) {
897 if (netxen_rom_fast_read(adapter,
898 flashaddr, (int *)&lo) != 0)
900 if (netxen_rom_fast_read(adapter,
901 flashaddr + 4, (int *)&hi) != 0)
904 /* hi, lo are already in host endian byteorder */
905 data = (((u64)hi << 32) | lo);
907 if (adapter->pci_mem_write(adapter,
916 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
917 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
918 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
919 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
920 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
922 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
923 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
930 netxen_validate_firmware(struct netxen_adapter *adapter)
933 u32 ver, min_ver, bios, min_size;
934 struct pci_dev *pdev = adapter->pdev;
935 const struct firmware *fw = adapter->fw;
936 u8 fw_type = adapter->fw_type;
938 if (fw_type == NX_UNIFIED_ROMIMAGE) {
939 if (nx_set_product_offs(adapter))
942 min_size = NX_UNI_FW_MIN_SIZE;
944 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
945 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
948 min_size = NX_FW_MIN_SIZE;
951 if (fw->size < min_size)
954 val = nx_get_fw_version(adapter);
956 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
957 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
959 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
961 ver = NETXEN_DECODE_VERSION(val);
963 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
965 "%s: firmware version %d.%d.%d unsupported\n",
966 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
970 val = nx_get_bios_version(adapter);
971 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
972 if ((__force u32)val != bios) {
973 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
978 /* check if flashed firmware is newer */
979 if (netxen_rom_fast_read(adapter,
980 NX_FW_VERSION_OFFSET, (int *)&val))
982 val = NETXEN_DECODE_VERSION(val);
984 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
989 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
994 nx_get_next_fwtype(struct netxen_adapter *adapter)
998 switch (adapter->fw_type) {
999 case NX_UNKNOWN_ROMIMAGE:
1000 fw_type = NX_UNIFIED_ROMIMAGE;
1003 case NX_UNIFIED_ROMIMAGE:
1004 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
1005 fw_type = NX_FLASH_ROMIMAGE;
1006 else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1007 fw_type = NX_P2_MN_ROMIMAGE;
1008 else if (netxen_p3_has_mn(adapter))
1009 fw_type = NX_P3_MN_ROMIMAGE;
1011 fw_type = NX_P3_CT_ROMIMAGE;
1014 case NX_P3_MN_ROMIMAGE:
1015 fw_type = NX_P3_CT_ROMIMAGE;
1018 case NX_P2_MN_ROMIMAGE:
1019 case NX_P3_CT_ROMIMAGE:
1021 fw_type = NX_FLASH_ROMIMAGE;
1025 adapter->fw_type = fw_type;
1029 netxen_p3_has_mn(struct netxen_adapter *adapter)
1031 u32 capability, flashed_ver;
1034 /* NX2031 always had MN */
1035 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1038 netxen_rom_fast_read(adapter,
1039 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
1040 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
1042 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
1044 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
1045 if (capability & NX_PEG_TUNE_MN_PRESENT)
1051 void netxen_request_firmware(struct netxen_adapter *adapter)
1053 struct pci_dev *pdev = adapter->pdev;
1056 adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
1059 nx_get_next_fwtype(adapter);
1061 if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
1064 rc = request_firmware(&adapter->fw,
1065 fw_name[adapter->fw_type], &pdev->dev);
1069 rc = netxen_validate_firmware(adapter);
1071 release_firmware(adapter->fw);
1080 netxen_release_firmware(struct netxen_adapter *adapter)
1083 release_firmware(adapter->fw);
1087 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
1092 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1095 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
1096 NETXEN_HOST_DUMMY_DMA_SIZE,
1097 &adapter->dummy_dma.phys_addr);
1098 if (adapter->dummy_dma.addr == NULL) {
1099 dev_err(&adapter->pdev->dev,
1100 "ERROR: Could not allocate dummy DMA memory\n");
1104 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1105 hi = (addr >> 32) & 0xffffffff;
1106 lo = addr & 0xffffffff;
1108 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1109 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1115 * NetXen DMA watchdog control:
1117 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
1118 * Bit 1 : disable_request => 1 req disable dma watchdog
1119 * Bit 2 : enable_request => 1 req enable dma watchdog
1122 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
1127 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
1130 if (!adapter->dummy_dma.addr)
1133 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1134 if ((ctrl & 0x1) != 0) {
1135 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
1137 while ((ctrl & 0x1) != 0) {
1141 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
1149 pci_free_consistent(adapter->pdev,
1150 NETXEN_HOST_DUMMY_DMA_SIZE,
1151 adapter->dummy_dma.addr,
1152 adapter->dummy_dma.phys_addr);
1153 adapter->dummy_dma.addr = NULL;
1155 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
1158 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1167 val = NXRD32(adapter, CRB_CMDPEG_STATE);
1170 case PHAN_INITIALIZE_COMPLETE:
1171 case PHAN_INITIALIZE_ACK:
1173 case PHAN_INITIALIZE_FAILED:
1181 } while (--retries);
1183 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1186 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1191 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1197 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1199 if (val == PHAN_PEG_RCV_INITIALIZED)
1204 } while (--retries);
1207 printk(KERN_ERR "Receive Peg initialization not "
1208 "complete, state: 0x%x.\n", val);
1215 int netxen_init_firmware(struct netxen_adapter *adapter)
1219 err = netxen_receive_peg_ready(adapter);
1223 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1224 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1225 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1226 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1232 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1237 u8 link_status, module, duplex, autoneg;
1238 struct net_device *netdev = adapter->netdev;
1240 adapter->has_link_events = 1;
1242 cable_OUI = msg->body[1] & 0xffffffff;
1243 cable_len = (msg->body[1] >> 32) & 0xffff;
1244 link_speed = (msg->body[1] >> 48) & 0xffff;
1246 link_status = msg->body[2] & 0xff;
1247 duplex = (msg->body[2] >> 16) & 0xff;
1248 autoneg = (msg->body[2] >> 24) & 0xff;
1250 module = (msg->body[2] >> 8) & 0xff;
1251 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1252 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1253 netdev->name, cable_OUI, cable_len);
1254 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1255 printk(KERN_INFO "%s: unsupported cable length %d\n",
1256 netdev->name, cable_len);
1259 netxen_advert_link_change(adapter, link_status);
1261 /* update link parameters */
1262 if (duplex == LINKEVENT_FULL_DUPLEX)
1263 adapter->link_duplex = DUPLEX_FULL;
1265 adapter->link_duplex = DUPLEX_HALF;
1266 adapter->module_type = module;
1267 adapter->link_autoneg = autoneg;
1268 adapter->link_speed = link_speed;
1272 netxen_handle_fw_message(int desc_cnt, int index,
1273 struct nx_host_sds_ring *sds_ring)
1276 struct status_desc *desc;
1279 while (desc_cnt > 0 && i < 8) {
1280 desc = &sds_ring->desc_head[index];
1281 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1282 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1284 index = get_next_index(index, sds_ring->num_desc);
1288 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1290 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1291 netxen_handle_linkevent(sds_ring->adapter, &msg);
1299 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1300 struct nx_host_rds_ring *rds_ring,
1301 struct netxen_rx_buffer *buffer)
1303 struct sk_buff *skb;
1305 struct pci_dev *pdev = adapter->pdev;
1307 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1313 if (!adapter->ahw.cut_through)
1314 skb_reserve(skb, 2);
1316 dma = pci_map_single(pdev, skb->data,
1317 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1319 if (pci_dma_mapping_error(pdev, dma)) {
1320 dev_kfree_skb_any(skb);
1327 buffer->state = NETXEN_BUFFER_BUSY;
1332 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1333 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1335 struct netxen_rx_buffer *buffer;
1336 struct sk_buff *skb;
1338 buffer = &rds_ring->rx_buf_arr[index];
1340 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1341 PCI_DMA_FROMDEVICE);
1347 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1348 adapter->stats.csummed++;
1349 skb->ip_summed = CHECKSUM_UNNECESSARY;
1351 skb->ip_summed = CHECKSUM_NONE;
1353 skb->dev = adapter->netdev;
1357 buffer->state = NETXEN_BUFFER_FREE;
1361 static struct netxen_rx_buffer *
1362 netxen_process_rcv(struct netxen_adapter *adapter,
1363 struct nx_host_sds_ring *sds_ring,
1364 int ring, u64 sts_data0)
1366 struct net_device *netdev = adapter->netdev;
1367 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1368 struct netxen_rx_buffer *buffer;
1369 struct sk_buff *skb;
1370 struct nx_host_rds_ring *rds_ring;
1371 int index, length, cksum, pkt_offset;
1373 if (unlikely(ring >= adapter->max_rds_rings))
1376 rds_ring = &recv_ctx->rds_rings[ring];
1378 index = netxen_get_sts_refhandle(sts_data0);
1379 if (unlikely(index >= rds_ring->num_desc))
1382 buffer = &rds_ring->rx_buf_arr[index];
1384 length = netxen_get_sts_totallength(sts_data0);
1385 cksum = netxen_get_sts_status(sts_data0);
1386 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1388 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1392 if (length > rds_ring->skb_size)
1393 skb_put(skb, rds_ring->skb_size);
1395 skb_put(skb, length);
1399 skb_pull(skb, pkt_offset);
1401 skb->truesize = skb->len + sizeof(struct sk_buff);
1402 skb->protocol = eth_type_trans(skb, netdev);
1404 napi_gro_receive(&sds_ring->napi, skb);
1406 adapter->stats.rx_pkts++;
1407 adapter->stats.rxbytes += length;
1412 #define TCP_HDR_SIZE 20
1413 #define TCP_TS_OPTION_SIZE 12
1414 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1416 static struct netxen_rx_buffer *
1417 netxen_process_lro(struct netxen_adapter *adapter,
1418 struct nx_host_sds_ring *sds_ring,
1419 int ring, u64 sts_data0, u64 sts_data1)
1421 struct net_device *netdev = adapter->netdev;
1422 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1423 struct netxen_rx_buffer *buffer;
1424 struct sk_buff *skb;
1425 struct nx_host_rds_ring *rds_ring;
1428 bool push, timestamp;
1429 int l2_hdr_offset, l4_hdr_offset;
1431 u16 lro_length, length, data_offset;
1434 if (unlikely(ring > adapter->max_rds_rings))
1437 rds_ring = &recv_ctx->rds_rings[ring];
1439 index = netxen_get_lro_sts_refhandle(sts_data0);
1440 if (unlikely(index > rds_ring->num_desc))
1443 buffer = &rds_ring->rx_buf_arr[index];
1445 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1446 lro_length = netxen_get_lro_sts_length(sts_data0);
1447 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1448 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1449 push = netxen_get_lro_sts_push_flag(sts_data0);
1450 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1452 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1457 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1459 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1461 skb_put(skb, lro_length + data_offset);
1463 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1465 skb_pull(skb, l2_hdr_offset);
1466 skb->protocol = eth_type_trans(skb, netdev);
1468 iph = (struct iphdr *)skb->data;
1469 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1471 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1472 iph->tot_len = htons(length);
1474 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1476 th->seq = htonl(seq_number);
1480 netif_receive_skb(skb);
1482 adapter->stats.lro_pkts++;
1483 adapter->stats.rxbytes += length;
1488 #define netxen_merge_rx_buffers(list, head) \
1489 do { list_splice_tail_init(list, head); } while (0);
1492 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1494 struct netxen_adapter *adapter = sds_ring->adapter;
1496 struct list_head *cur;
1498 struct status_desc *desc;
1499 struct netxen_rx_buffer *rxbuf;
1501 u32 consumer = sds_ring->consumer;
1504 u64 sts_data0, sts_data1;
1505 int opcode, ring = 0, desc_cnt;
1507 while (count < max) {
1508 desc = &sds_ring->desc_head[consumer];
1509 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1511 if (!(sts_data0 & STATUS_OWNER_HOST))
1514 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1516 opcode = netxen_get_sts_opcode(sts_data0);
1519 case NETXEN_NIC_RXPKT_DESC:
1520 case NETXEN_OLD_RXPKT_DESC:
1521 case NETXEN_NIC_SYN_OFFLOAD:
1522 ring = netxen_get_sts_type(sts_data0);
1523 rxbuf = netxen_process_rcv(adapter, sds_ring,
1526 case NETXEN_NIC_LRO_DESC:
1527 ring = netxen_get_lro_sts_type(sts_data0);
1528 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1529 rxbuf = netxen_process_lro(adapter, sds_ring,
1530 ring, sts_data0, sts_data1);
1532 case NETXEN_NIC_RESPONSE_DESC:
1533 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1538 WARN_ON(desc_cnt > 1);
1541 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1544 for (; desc_cnt > 0; desc_cnt--) {
1545 desc = &sds_ring->desc_head[consumer];
1546 desc->status_desc_data[0] =
1547 cpu_to_le64(STATUS_OWNER_PHANTOM);
1548 consumer = get_next_index(consumer, sds_ring->num_desc);
1553 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1554 struct nx_host_rds_ring *rds_ring =
1555 &adapter->recv_ctx.rds_rings[ring];
1557 if (!list_empty(&sds_ring->free_list[ring])) {
1558 list_for_each(cur, &sds_ring->free_list[ring]) {
1559 rxbuf = list_entry(cur,
1560 struct netxen_rx_buffer, list);
1561 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1563 spin_lock(&rds_ring->lock);
1564 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1565 &rds_ring->free_list);
1566 spin_unlock(&rds_ring->lock);
1569 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1573 sds_ring->consumer = consumer;
1574 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1580 /* Process Command status ring */
1581 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1583 u32 sw_consumer, hw_consumer;
1585 struct netxen_cmd_buffer *buffer;
1586 struct pci_dev *pdev = adapter->pdev;
1587 struct net_device *netdev = adapter->netdev;
1588 struct netxen_skb_frag *frag;
1590 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1592 if (!spin_trylock(&adapter->tx_clean_lock))
1595 sw_consumer = tx_ring->sw_consumer;
1596 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1598 while (sw_consumer != hw_consumer) {
1599 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1601 frag = &buffer->frag_array[0];
1602 pci_unmap_single(pdev, frag->dma, frag->length,
1605 for (i = 1; i < buffer->frag_count; i++) {
1606 frag++; /* Get the next frag */
1607 pci_unmap_page(pdev, frag->dma, frag->length,
1612 adapter->stats.xmitfinished++;
1613 dev_kfree_skb_any(buffer->skb);
1617 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1618 if (++count >= MAX_STATUS_HANDLE)
1622 if (count && netif_running(netdev)) {
1623 tx_ring->sw_consumer = sw_consumer;
1627 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1628 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1629 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) {
1630 netif_wake_queue(netdev);
1631 adapter->tx_timeo_cnt = 0;
1633 __netif_tx_unlock(tx_ring->txq);
1637 * If everything is freed up to consumer then check if the ring is full
1638 * If the ring is full then check if more needs to be freed and
1639 * schedule the call back again.
1641 * This happens when there are 2 CPUs. One could be freeing and the
1642 * other filling it. If the ring is full when we get out of here and
1643 * the card has already interrupted the host then the host can miss the
1646 * There is still a possible race condition and the host could miss an
1647 * interrupt. The card has to take care of this.
1649 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1650 done = (sw_consumer == hw_consumer);
1651 spin_unlock(&adapter->tx_clean_lock);
1657 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1658 struct nx_host_rds_ring *rds_ring)
1660 struct rcv_desc *pdesc;
1661 struct netxen_rx_buffer *buffer;
1662 int producer, count = 0;
1663 netxen_ctx_msg msg = 0;
1664 struct list_head *head;
1666 producer = rds_ring->producer;
1668 spin_lock(&rds_ring->lock);
1669 head = &rds_ring->free_list;
1670 while (!list_empty(head)) {
1672 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1675 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1680 list_del(&buffer->list);
1682 /* make a rcv descriptor */
1683 pdesc = &rds_ring->desc_head[producer];
1684 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1685 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1686 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1688 producer = get_next_index(producer, rds_ring->num_desc);
1690 spin_unlock(&rds_ring->lock);
1693 rds_ring->producer = producer;
1694 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1695 (producer-1) & (rds_ring->num_desc-1));
1697 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1699 * Write a doorbell msg to tell phanmon of change in
1700 * receive ring producer
1701 * Only for firmware version < 4.0.0
1703 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1704 netxen_set_msg_privid(msg);
1705 netxen_set_msg_count(msg,
1707 (rds_ring->num_desc - 1)));
1708 netxen_set_msg_ctxid(msg, adapter->portnum);
1709 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1710 NXWRIO(adapter, DB_NORMALIZE(adapter,
1711 NETXEN_RCV_PRODUCER_OFFSET), msg);
1717 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1718 struct nx_host_rds_ring *rds_ring)
1720 struct rcv_desc *pdesc;
1721 struct netxen_rx_buffer *buffer;
1722 int producer, count = 0;
1723 struct list_head *head;
1725 producer = rds_ring->producer;
1726 if (!spin_trylock(&rds_ring->lock))
1729 head = &rds_ring->free_list;
1730 while (!list_empty(head)) {
1732 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1735 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1740 list_del(&buffer->list);
1742 /* make a rcv descriptor */
1743 pdesc = &rds_ring->desc_head[producer];
1744 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1745 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1746 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1748 producer = get_next_index(producer, rds_ring->num_desc);
1752 rds_ring->producer = producer;
1753 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1754 (producer - 1) & (rds_ring->num_desc - 1));
1756 spin_unlock(&rds_ring->lock);
1759 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1761 memset(&adapter->stats, 0, sizeof(adapter->stats));