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);
50 static void crb_addr_transform_setup(void)
52 crb_addr_transform(XDMA);
53 crb_addr_transform(TIMR);
54 crb_addr_transform(SRE);
55 crb_addr_transform(SQN3);
56 crb_addr_transform(SQN2);
57 crb_addr_transform(SQN1);
58 crb_addr_transform(SQN0);
59 crb_addr_transform(SQS3);
60 crb_addr_transform(SQS2);
61 crb_addr_transform(SQS1);
62 crb_addr_transform(SQS0);
63 crb_addr_transform(RPMX7);
64 crb_addr_transform(RPMX6);
65 crb_addr_transform(RPMX5);
66 crb_addr_transform(RPMX4);
67 crb_addr_transform(RPMX3);
68 crb_addr_transform(RPMX2);
69 crb_addr_transform(RPMX1);
70 crb_addr_transform(RPMX0);
71 crb_addr_transform(ROMUSB);
72 crb_addr_transform(SN);
73 crb_addr_transform(QMN);
74 crb_addr_transform(QMS);
75 crb_addr_transform(PGNI);
76 crb_addr_transform(PGND);
77 crb_addr_transform(PGN3);
78 crb_addr_transform(PGN2);
79 crb_addr_transform(PGN1);
80 crb_addr_transform(PGN0);
81 crb_addr_transform(PGSI);
82 crb_addr_transform(PGSD);
83 crb_addr_transform(PGS3);
84 crb_addr_transform(PGS2);
85 crb_addr_transform(PGS1);
86 crb_addr_transform(PGS0);
87 crb_addr_transform(PS);
88 crb_addr_transform(PH);
89 crb_addr_transform(NIU);
90 crb_addr_transform(I2Q);
91 crb_addr_transform(EG);
92 crb_addr_transform(MN);
93 crb_addr_transform(MS);
94 crb_addr_transform(CAS2);
95 crb_addr_transform(CAS1);
96 crb_addr_transform(CAS0);
97 crb_addr_transform(CAM);
98 crb_addr_transform(C2C1);
99 crb_addr_transform(C2C0);
100 crb_addr_transform(SMB);
101 crb_addr_transform(OCM0);
102 crb_addr_transform(I2C0);
105 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
107 struct netxen_recv_context *recv_ctx;
108 struct nx_host_rds_ring *rds_ring;
109 struct netxen_rx_buffer *rx_buf;
112 recv_ctx = &adapter->recv_ctx;
113 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
114 rds_ring = &recv_ctx->rds_rings[ring];
115 for (i = 0; i < rds_ring->num_desc; ++i) {
116 rx_buf = &(rds_ring->rx_buf_arr[i]);
117 if (rx_buf->state == NETXEN_BUFFER_FREE)
119 pci_unmap_single(adapter->pdev,
123 if (rx_buf->skb != NULL)
124 dev_kfree_skb_any(rx_buf->skb);
129 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
131 struct netxen_cmd_buffer *cmd_buf;
132 struct netxen_skb_frag *buffrag;
134 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
136 cmd_buf = tx_ring->cmd_buf_arr;
137 for (i = 0; i < tx_ring->num_desc; i++) {
138 buffrag = cmd_buf->frag_array;
140 pci_unmap_single(adapter->pdev, buffrag->dma,
141 buffrag->length, PCI_DMA_TODEVICE);
144 for (j = 0; j < cmd_buf->frag_count; j++) {
147 pci_unmap_page(adapter->pdev, buffrag->dma,
154 dev_kfree_skb_any(cmd_buf->skb);
161 void netxen_free_sw_resources(struct netxen_adapter *adapter)
163 struct netxen_recv_context *recv_ctx;
164 struct nx_host_rds_ring *rds_ring;
165 struct nx_host_tx_ring *tx_ring;
168 recv_ctx = &adapter->recv_ctx;
170 if (recv_ctx->rds_rings == NULL)
173 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
174 rds_ring = &recv_ctx->rds_rings[ring];
175 vfree(rds_ring->rx_buf_arr);
176 rds_ring->rx_buf_arr = NULL;
178 kfree(recv_ctx->rds_rings);
181 if (adapter->tx_ring == NULL)
184 tx_ring = adapter->tx_ring;
185 vfree(tx_ring->cmd_buf_arr);
188 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
190 struct netxen_recv_context *recv_ctx;
191 struct nx_host_rds_ring *rds_ring;
192 struct nx_host_sds_ring *sds_ring;
193 struct nx_host_tx_ring *tx_ring;
194 struct netxen_rx_buffer *rx_buf;
197 struct netxen_cmd_buffer *cmd_buf_arr;
198 struct net_device *netdev = adapter->netdev;
199 struct pci_dev *pdev = adapter->pdev;
201 size = sizeof(struct nx_host_tx_ring);
202 tx_ring = kzalloc(size, GFP_KERNEL);
203 if (tx_ring == NULL) {
204 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
208 adapter->tx_ring = tx_ring;
210 tx_ring->num_desc = adapter->num_txd;
211 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
213 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
214 if (cmd_buf_arr == NULL) {
215 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
219 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
220 tx_ring->cmd_buf_arr = cmd_buf_arr;
222 recv_ctx = &adapter->recv_ctx;
224 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
225 rds_ring = kzalloc(size, GFP_KERNEL);
226 if (rds_ring == NULL) {
227 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
231 recv_ctx->rds_rings = rds_ring;
233 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
234 rds_ring = &recv_ctx->rds_rings[ring];
236 case RCV_RING_NORMAL:
237 rds_ring->num_desc = adapter->num_rxd;
238 if (adapter->ahw.cut_through) {
240 NX_CT_DEFAULT_RX_BUF_LEN;
242 NX_CT_DEFAULT_RX_BUF_LEN;
244 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
246 NX_P3_RX_BUF_MAX_LEN;
249 NX_P2_RX_BUF_MAX_LEN;
251 rds_ring->dma_size + NET_IP_ALIGN;
256 rds_ring->num_desc = adapter->num_jumbo_rxd;
257 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
259 NX_P3_RX_JUMBO_BUF_MAX_LEN;
262 NX_P2_RX_JUMBO_BUF_MAX_LEN;
264 if (adapter->capabilities & NX_CAP0_HW_LRO)
265 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
268 rds_ring->dma_size + NET_IP_ALIGN;
272 rds_ring->num_desc = adapter->num_lro_rxd;
273 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
274 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
278 rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
279 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
280 if (rds_ring->rx_buf_arr == NULL) {
281 printk(KERN_ERR "%s: Failed to allocate "
282 "rx buffer ring %d\n",
284 /* free whatever was already allocated */
287 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
288 INIT_LIST_HEAD(&rds_ring->free_list);
290 * Now go through all of them, set reference handles
291 * and put them in the queues.
293 rx_buf = rds_ring->rx_buf_arr;
294 for (i = 0; i < rds_ring->num_desc; i++) {
295 list_add_tail(&rx_buf->list,
296 &rds_ring->free_list);
297 rx_buf->ref_handle = i;
298 rx_buf->state = NETXEN_BUFFER_FREE;
301 spin_lock_init(&rds_ring->lock);
304 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
305 sds_ring = &recv_ctx->sds_rings[ring];
306 sds_ring->irq = adapter->msix_entries[ring].vector;
307 sds_ring->adapter = adapter;
308 sds_ring->num_desc = adapter->num_rxd;
310 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
311 INIT_LIST_HEAD(&sds_ring->free_list[i]);
317 netxen_free_sw_resources(adapter);
322 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
323 * address to external PCI CRB address.
325 static u32 netxen_decode_crb_addr(u32 addr)
328 u32 base_addr, offset, pci_base;
330 crb_addr_transform_setup();
332 pci_base = NETXEN_ADDR_ERROR;
333 base_addr = addr & 0xfff00000;
334 offset = addr & 0x000fffff;
336 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
337 if (crb_addr_xform[i] == base_addr) {
342 if (pci_base == NETXEN_ADDR_ERROR)
345 return (pci_base + offset);
348 #define NETXEN_MAX_ROM_WAIT_USEC 100
350 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
358 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
360 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
361 dev_err(&adapter->pdev->dev,
362 "Timeout reached waiting for rom done");
370 static int do_rom_fast_read(struct netxen_adapter *adapter,
373 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
374 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
375 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
376 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
377 if (netxen_wait_rom_done(adapter)) {
378 printk("Error waiting for rom done\n");
381 /* reset abyte_cnt and dummy_byte_cnt */
382 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
384 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
386 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
390 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
391 u8 *bytes, size_t size)
396 for (addridx = addr; addridx < (addr + size); addridx += 4) {
398 ret = do_rom_fast_read(adapter, addridx, &v);
401 *(__le32 *)bytes = cpu_to_le32(v);
409 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
410 u8 *bytes, size_t size)
414 ret = netxen_rom_lock(adapter);
418 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
420 netxen_rom_unlock(adapter);
424 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
428 if (netxen_rom_lock(adapter) != 0)
431 ret = do_rom_fast_read(adapter, addr, valp);
432 netxen_rom_unlock(adapter);
436 #define NETXEN_BOARDTYPE 0x4008
437 #define NETXEN_BOARDNUM 0x400c
438 #define NETXEN_CHIPNUM 0x4010
440 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
443 int i, n, init_delay = 0;
444 struct crb_addr_pair *buf;
449 netxen_rom_lock(adapter);
450 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
451 netxen_rom_unlock(adapter);
454 if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
455 printk("P2 ROM board type: 0x%08x\n", val);
457 printk("Could not read board type\n");
458 if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
459 printk("P2 ROM board num: 0x%08x\n", val);
461 printk("Could not read board number\n");
462 if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
463 printk("P2 ROM chip num: 0x%08x\n", val);
465 printk("Could not read chip number\n");
468 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
469 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
471 netxen_rom_fast_read(adapter, 4, &n) != 0) {
472 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
473 "n: %08x\n", netxen_nic_driver_name, n);
476 offset = n & 0xffffU;
477 n = (n >> 16) & 0xffffU;
479 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
481 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
482 "n: %08x\n", netxen_nic_driver_name, n);
491 printk(KERN_DEBUG "%s: %d CRB init values found"
492 " in ROM.\n", netxen_nic_driver_name, n);
494 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
495 " initialized.\n", __func__, n);
499 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
501 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
502 netxen_nic_driver_name);
505 for (i = 0; i < n; i++) {
506 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
507 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
516 printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n",
517 netxen_nic_driver_name,
518 (u32)netxen_decode_crb_addr(addr), val);
520 for (i = 0; i < n; i++) {
522 off = netxen_decode_crb_addr(buf[i].addr);
523 if (off == NETXEN_ADDR_ERROR) {
524 printk(KERN_ERR"CRB init value out of range %x\n",
528 off += NETXEN_PCI_CRBSPACE;
529 /* skipping cold reboot MAGIC */
530 if (off == NETXEN_CAM_RAM(0x1fc))
533 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
534 /* do not reset PCI */
535 if (off == (ROMUSB_GLB + 0xbc))
537 if (off == (ROMUSB_GLB + 0xa8))
539 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
541 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
543 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
545 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18))
546 buf[i].data = 0x1020;
547 /* skip the function enable register */
548 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
550 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
552 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
556 if (off == NETXEN_ADDR_ERROR) {
557 printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n",
558 netxen_nic_driver_name, buf[i].addr);
563 /* After writing this register, HW needs time for CRB */
564 /* to quiet down (else crb_window returns 0xffffffff) */
565 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
567 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
568 /* hold xdma in reset also */
569 buf[i].data = NETXEN_NIC_XDMA_RESET;
570 buf[i].data = 0x8000ff;
574 NXWR32(adapter, off, buf[i].data);
580 /* disable_peg_cache_all */
582 /* unreset_net_cache */
583 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
584 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
585 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
588 /* p2dn replyCount */
589 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
590 /* disable_peg_cache 0 */
591 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
592 /* disable_peg_cache 1 */
593 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
598 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
599 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
601 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
602 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
604 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
605 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
607 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
608 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
613 netxen_need_fw_reset(struct netxen_adapter *adapter)
615 u32 count, old_count;
616 u32 val, version, major, minor, build;
620 /* NX2031 firmware doesn't support heartbit */
621 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
624 /* last attempt had failed */
625 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
628 old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
630 for (i = 0; i < 10; i++) {
632 timeout = msleep_interruptible(200);
634 NXWR32(adapter, CRB_CMDPEG_STATE,
635 PHAN_INITIALIZE_FAILED);
639 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
640 if (count != old_count)
644 /* firmware is dead */
645 if (count == old_count)
648 /* check if we have got newer or different file firmware */
651 const struct firmware *fw = adapter->fw;
653 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
654 version = NETXEN_DECODE_VERSION(val);
656 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
657 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
658 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
660 if (version > NETXEN_VERSION_CODE(major, minor, build))
663 if (version == NETXEN_VERSION_CODE(major, minor, build)) {
665 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
666 fw_type = (val & 0x4) ?
667 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
669 if (adapter->fw_type != fw_type)
677 static char *fw_name[] = {
678 "nxromimg.bin", "nx3fwct.bin", "nx3fwmn.bin", "flash",
682 netxen_load_firmware(struct netxen_adapter *adapter)
685 u32 i, flashaddr, size;
686 const struct firmware *fw = adapter->fw;
687 struct pci_dev *pdev = adapter->pdev;
689 dev_info(&pdev->dev, "loading firmware from %s\n",
690 fw_name[adapter->fw_type]);
692 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
693 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
698 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
700 ptr64 = (u64 *)&fw->data[NETXEN_BOOTLD_START];
701 flashaddr = NETXEN_BOOTLD_START;
703 for (i = 0; i < size; i++) {
704 data = cpu_to_le64(ptr64[i]);
705 adapter->pci_mem_write(adapter, flashaddr, &data, 8);
709 size = *(u32 *)&fw->data[NX_FW_SIZE_OFFSET];
710 size = (__force u32)cpu_to_le32(size) / 8;
712 ptr64 = (u64 *)&fw->data[NETXEN_IMAGE_START];
713 flashaddr = NETXEN_IMAGE_START;
715 for (i = 0; i < size; i++) {
716 data = cpu_to_le64(ptr64[i]);
718 if (adapter->pci_mem_write(adapter,
719 flashaddr, &data, 8))
728 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
729 flashaddr = NETXEN_BOOTLD_START;
731 for (i = 0; i < size; i++) {
732 if (netxen_rom_fast_read(adapter,
733 flashaddr, &lo) != 0)
735 if (netxen_rom_fast_read(adapter,
736 flashaddr + 4, &hi) != 0)
739 /* hi, lo are already in host endian byteorder */
740 data = (((u64)hi << 32) | lo);
742 if (adapter->pci_mem_write(adapter,
743 flashaddr, &data, 8))
751 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
752 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
754 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
755 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
762 netxen_validate_firmware(struct netxen_adapter *adapter, const char *fwname)
765 u32 ver, min_ver, bios;
766 struct pci_dev *pdev = adapter->pdev;
767 const struct firmware *fw = adapter->fw;
769 if (fw->size < NX_FW_MIN_SIZE)
772 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
773 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
776 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
778 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
779 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
781 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
783 ver = NETXEN_DECODE_VERSION(val);
785 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
787 "%s: firmware version %d.%d.%d unsupported\n",
788 fwname, _major(ver), _minor(ver), _build(ver));
792 val = cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
793 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
794 if ((__force u32)val != bios) {
795 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
800 /* check if flashed firmware is newer */
801 if (netxen_rom_fast_read(adapter,
802 NX_FW_VERSION_OFFSET, (int *)&val))
804 val = NETXEN_DECODE_VERSION(val);
806 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
811 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
816 netxen_p3_has_mn(struct netxen_adapter *adapter)
818 u32 capability, flashed_ver;
821 netxen_rom_fast_read(adapter,
822 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
823 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
825 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
827 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
828 if (capability & NX_PEG_TUNE_MN_PRESENT)
834 void netxen_request_firmware(struct netxen_adapter *adapter)
837 struct pci_dev *pdev = adapter->pdev;
840 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
841 fw_type = NX_P2_MN_ROMIMAGE;
845 fw_type = netxen_p3_has_mn(adapter) ?
846 NX_P3_MN_ROMIMAGE : NX_P3_CT_ROMIMAGE;
849 rc = request_firmware(&adapter->fw, fw_name[fw_type], &pdev->dev);
851 if (fw_type == NX_P3_MN_ROMIMAGE) {
853 fw_type = NX_P3_CT_ROMIMAGE;
857 fw_type = NX_FLASH_ROMIMAGE;
862 rc = netxen_validate_firmware(adapter, fw_name[fw_type]);
864 release_firmware(adapter->fw);
866 if (fw_type == NX_P3_MN_ROMIMAGE) {
868 fw_type = NX_P3_CT_ROMIMAGE;
872 fw_type = NX_FLASH_ROMIMAGE;
878 adapter->fw_type = fw_type;
883 netxen_release_firmware(struct netxen_adapter *adapter)
886 release_firmware(adapter->fw);
890 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
895 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
898 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
899 NETXEN_HOST_DUMMY_DMA_SIZE,
900 &adapter->dummy_dma.phys_addr);
901 if (adapter->dummy_dma.addr == NULL) {
902 dev_err(&adapter->pdev->dev,
903 "ERROR: Could not allocate dummy DMA memory\n");
907 addr = (uint64_t) adapter->dummy_dma.phys_addr;
908 hi = (addr >> 32) & 0xffffffff;
909 lo = addr & 0xffffffff;
911 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
912 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
918 * NetXen DMA watchdog control:
920 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
921 * Bit 1 : disable_request => 1 req disable dma watchdog
922 * Bit 2 : enable_request => 1 req enable dma watchdog
925 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
930 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
933 if (!adapter->dummy_dma.addr)
936 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
937 if ((ctrl & 0x1) != 0) {
938 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
940 while ((ctrl & 0x1) != 0) {
944 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
952 pci_free_consistent(adapter->pdev,
953 NETXEN_HOST_DUMMY_DMA_SIZE,
954 adapter->dummy_dma.addr,
955 adapter->dummy_dma.phys_addr);
956 adapter->dummy_dma.addr = NULL;
958 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
961 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
970 val = NXRD32(adapter, CRB_CMDPEG_STATE);
973 case PHAN_INITIALIZE_COMPLETE:
974 case PHAN_INITIALIZE_ACK:
976 case PHAN_INITIALIZE_FAILED:
986 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
989 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
994 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1000 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1002 if (val == PHAN_PEG_RCV_INITIALIZED)
1007 } while (--retries);
1010 printk(KERN_ERR "Receive Peg initialization not "
1011 "complete, state: 0x%x.\n", val);
1018 int netxen_init_firmware(struct netxen_adapter *adapter)
1022 err = netxen_receive_peg_ready(adapter);
1026 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1027 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1028 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1029 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1035 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1040 u8 link_status, module, duplex, autoneg;
1041 struct net_device *netdev = adapter->netdev;
1043 adapter->has_link_events = 1;
1045 cable_OUI = msg->body[1] & 0xffffffff;
1046 cable_len = (msg->body[1] >> 32) & 0xffff;
1047 link_speed = (msg->body[1] >> 48) & 0xffff;
1049 link_status = msg->body[2] & 0xff;
1050 duplex = (msg->body[2] >> 16) & 0xff;
1051 autoneg = (msg->body[2] >> 24) & 0xff;
1053 module = (msg->body[2] >> 8) & 0xff;
1054 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1055 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1056 netdev->name, cable_OUI, cable_len);
1057 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1058 printk(KERN_INFO "%s: unsupported cable length %d\n",
1059 netdev->name, cable_len);
1062 netxen_advert_link_change(adapter, link_status);
1064 /* update link parameters */
1065 if (duplex == LINKEVENT_FULL_DUPLEX)
1066 adapter->link_duplex = DUPLEX_FULL;
1068 adapter->link_duplex = DUPLEX_HALF;
1069 adapter->module_type = module;
1070 adapter->link_autoneg = autoneg;
1071 adapter->link_speed = link_speed;
1075 netxen_handle_fw_message(int desc_cnt, int index,
1076 struct nx_host_sds_ring *sds_ring)
1079 struct status_desc *desc;
1082 while (desc_cnt > 0 && i < 8) {
1083 desc = &sds_ring->desc_head[index];
1084 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1085 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1087 index = get_next_index(index, sds_ring->num_desc);
1091 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1093 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1094 netxen_handle_linkevent(sds_ring->adapter, &msg);
1102 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1103 struct nx_host_rds_ring *rds_ring,
1104 struct netxen_rx_buffer *buffer)
1106 struct sk_buff *skb;
1108 struct pci_dev *pdev = adapter->pdev;
1110 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1116 if (!adapter->ahw.cut_through)
1117 skb_reserve(skb, 2);
1119 dma = pci_map_single(pdev, skb->data,
1120 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1122 if (pci_dma_mapping_error(pdev, dma)) {
1123 dev_kfree_skb_any(skb);
1130 buffer->state = NETXEN_BUFFER_BUSY;
1135 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1136 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1138 struct netxen_rx_buffer *buffer;
1139 struct sk_buff *skb;
1141 buffer = &rds_ring->rx_buf_arr[index];
1143 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1144 PCI_DMA_FROMDEVICE);
1150 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1151 adapter->stats.csummed++;
1152 skb->ip_summed = CHECKSUM_UNNECESSARY;
1154 skb->ip_summed = CHECKSUM_NONE;
1156 skb->dev = adapter->netdev;
1160 buffer->state = NETXEN_BUFFER_FREE;
1164 static struct netxen_rx_buffer *
1165 netxen_process_rcv(struct netxen_adapter *adapter,
1166 struct nx_host_sds_ring *sds_ring,
1167 int ring, u64 sts_data0)
1169 struct net_device *netdev = adapter->netdev;
1170 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1171 struct netxen_rx_buffer *buffer;
1172 struct sk_buff *skb;
1173 struct nx_host_rds_ring *rds_ring;
1174 int index, length, cksum, pkt_offset;
1176 if (unlikely(ring >= adapter->max_rds_rings))
1179 rds_ring = &recv_ctx->rds_rings[ring];
1181 index = netxen_get_sts_refhandle(sts_data0);
1182 if (unlikely(index >= rds_ring->num_desc))
1185 buffer = &rds_ring->rx_buf_arr[index];
1187 length = netxen_get_sts_totallength(sts_data0);
1188 cksum = netxen_get_sts_status(sts_data0);
1189 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1191 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1195 if (length > rds_ring->skb_size)
1196 skb_put(skb, rds_ring->skb_size);
1198 skb_put(skb, length);
1202 skb_pull(skb, pkt_offset);
1204 skb->truesize = skb->len + sizeof(struct sk_buff);
1205 skb->protocol = eth_type_trans(skb, netdev);
1207 napi_gro_receive(&sds_ring->napi, skb);
1209 adapter->stats.rx_pkts++;
1210 adapter->stats.rxbytes += length;
1215 #define TCP_HDR_SIZE 20
1216 #define TCP_TS_OPTION_SIZE 12
1217 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1219 static struct netxen_rx_buffer *
1220 netxen_process_lro(struct netxen_adapter *adapter,
1221 struct nx_host_sds_ring *sds_ring,
1222 int ring, u64 sts_data0, u64 sts_data1)
1224 struct net_device *netdev = adapter->netdev;
1225 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1226 struct netxen_rx_buffer *buffer;
1227 struct sk_buff *skb;
1228 struct nx_host_rds_ring *rds_ring;
1231 bool push, timestamp;
1232 int l2_hdr_offset, l4_hdr_offset;
1234 u16 lro_length, length, data_offset;
1237 if (unlikely(ring > adapter->max_rds_rings))
1240 rds_ring = &recv_ctx->rds_rings[ring];
1242 index = netxen_get_lro_sts_refhandle(sts_data0);
1243 if (unlikely(index > rds_ring->num_desc))
1246 buffer = &rds_ring->rx_buf_arr[index];
1248 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1249 lro_length = netxen_get_lro_sts_length(sts_data0);
1250 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1251 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1252 push = netxen_get_lro_sts_push_flag(sts_data0);
1253 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1255 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1260 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1262 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1264 skb_put(skb, lro_length + data_offset);
1266 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1268 skb_pull(skb, l2_hdr_offset);
1269 skb->protocol = eth_type_trans(skb, netdev);
1271 iph = (struct iphdr *)skb->data;
1272 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1274 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1275 iph->tot_len = htons(length);
1277 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1279 th->seq = htonl(seq_number);
1283 netif_receive_skb(skb);
1285 adapter->stats.lro_pkts++;
1286 adapter->stats.rxbytes += length;
1291 #define netxen_merge_rx_buffers(list, head) \
1292 do { list_splice_tail_init(list, head); } while (0);
1295 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1297 struct netxen_adapter *adapter = sds_ring->adapter;
1299 struct list_head *cur;
1301 struct status_desc *desc;
1302 struct netxen_rx_buffer *rxbuf;
1304 u32 consumer = sds_ring->consumer;
1307 u64 sts_data0, sts_data1;
1308 int opcode, ring = 0, desc_cnt;
1310 while (count < max) {
1311 desc = &sds_ring->desc_head[consumer];
1312 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1314 if (!(sts_data0 & STATUS_OWNER_HOST))
1317 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1319 opcode = netxen_get_sts_opcode(sts_data0);
1322 case NETXEN_NIC_RXPKT_DESC:
1323 case NETXEN_OLD_RXPKT_DESC:
1324 case NETXEN_NIC_SYN_OFFLOAD:
1325 ring = netxen_get_sts_type(sts_data0);
1326 rxbuf = netxen_process_rcv(adapter, sds_ring,
1329 case NETXEN_NIC_LRO_DESC:
1330 ring = netxen_get_lro_sts_type(sts_data0);
1331 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1332 rxbuf = netxen_process_lro(adapter, sds_ring,
1333 ring, sts_data0, sts_data1);
1335 case NETXEN_NIC_RESPONSE_DESC:
1336 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1341 WARN_ON(desc_cnt > 1);
1344 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1347 for (; desc_cnt > 0; desc_cnt--) {
1348 desc = &sds_ring->desc_head[consumer];
1349 desc->status_desc_data[0] =
1350 cpu_to_le64(STATUS_OWNER_PHANTOM);
1351 consumer = get_next_index(consumer, sds_ring->num_desc);
1356 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1357 struct nx_host_rds_ring *rds_ring =
1358 &adapter->recv_ctx.rds_rings[ring];
1360 if (!list_empty(&sds_ring->free_list[ring])) {
1361 list_for_each(cur, &sds_ring->free_list[ring]) {
1362 rxbuf = list_entry(cur,
1363 struct netxen_rx_buffer, list);
1364 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1366 spin_lock(&rds_ring->lock);
1367 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1368 &rds_ring->free_list);
1369 spin_unlock(&rds_ring->lock);
1372 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1376 sds_ring->consumer = consumer;
1377 NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
1383 /* Process Command status ring */
1384 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1386 u32 sw_consumer, hw_consumer;
1388 struct netxen_cmd_buffer *buffer;
1389 struct pci_dev *pdev = adapter->pdev;
1390 struct net_device *netdev = adapter->netdev;
1391 struct netxen_skb_frag *frag;
1393 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1395 if (!spin_trylock(&adapter->tx_clean_lock))
1398 sw_consumer = tx_ring->sw_consumer;
1399 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1401 while (sw_consumer != hw_consumer) {
1402 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1404 frag = &buffer->frag_array[0];
1405 pci_unmap_single(pdev, frag->dma, frag->length,
1408 for (i = 1; i < buffer->frag_count; i++) {
1409 frag++; /* Get the next frag */
1410 pci_unmap_page(pdev, frag->dma, frag->length,
1415 adapter->stats.xmitfinished++;
1416 dev_kfree_skb_any(buffer->skb);
1420 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1421 if (++count >= MAX_STATUS_HANDLE)
1425 if (count && netif_running(netdev)) {
1426 tx_ring->sw_consumer = sw_consumer;
1430 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1431 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1432 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) {
1433 netif_wake_queue(netdev);
1434 adapter->tx_timeo_cnt = 0;
1436 __netif_tx_unlock(tx_ring->txq);
1440 * If everything is freed up to consumer then check if the ring is full
1441 * If the ring is full then check if more needs to be freed and
1442 * schedule the call back again.
1444 * This happens when there are 2 CPUs. One could be freeing and the
1445 * other filling it. If the ring is full when we get out of here and
1446 * the card has already interrupted the host then the host can miss the
1449 * There is still a possible race condition and the host could miss an
1450 * interrupt. The card has to take care of this.
1452 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1453 done = (sw_consumer == hw_consumer);
1454 spin_unlock(&adapter->tx_clean_lock);
1460 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1461 struct nx_host_rds_ring *rds_ring)
1463 struct rcv_desc *pdesc;
1464 struct netxen_rx_buffer *buffer;
1465 int producer, count = 0;
1466 netxen_ctx_msg msg = 0;
1467 struct list_head *head;
1469 producer = rds_ring->producer;
1471 spin_lock(&rds_ring->lock);
1472 head = &rds_ring->free_list;
1473 while (!list_empty(head)) {
1475 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1478 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1483 list_del(&buffer->list);
1485 /* make a rcv descriptor */
1486 pdesc = &rds_ring->desc_head[producer];
1487 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1488 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1489 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1491 producer = get_next_index(producer, rds_ring->num_desc);
1493 spin_unlock(&rds_ring->lock);
1496 rds_ring->producer = producer;
1497 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1498 (producer-1) & (rds_ring->num_desc-1));
1500 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1502 * Write a doorbell msg to tell phanmon of change in
1503 * receive ring producer
1504 * Only for firmware version < 4.0.0
1506 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1507 netxen_set_msg_privid(msg);
1508 netxen_set_msg_count(msg,
1510 (rds_ring->num_desc - 1)));
1511 netxen_set_msg_ctxid(msg, adapter->portnum);
1512 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1513 read_lock(&adapter->adapter_lock);
1514 writel(msg, DB_NORMALIZE(adapter,
1515 NETXEN_RCV_PRODUCER_OFFSET));
1516 read_unlock(&adapter->adapter_lock);
1522 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1523 struct nx_host_rds_ring *rds_ring)
1525 struct rcv_desc *pdesc;
1526 struct netxen_rx_buffer *buffer;
1527 int producer, count = 0;
1528 struct list_head *head;
1530 producer = rds_ring->producer;
1531 if (!spin_trylock(&rds_ring->lock))
1534 head = &rds_ring->free_list;
1535 while (!list_empty(head)) {
1537 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1540 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1545 list_del(&buffer->list);
1547 /* make a rcv descriptor */
1548 pdesc = &rds_ring->desc_head[producer];
1549 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1550 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1551 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1553 producer = get_next_index(producer, rds_ring->num_desc);
1557 rds_ring->producer = producer;
1558 NXWRIO(adapter, rds_ring->crb_rcv_producer,
1559 (producer - 1) & (rds_ring->num_desc - 1));
1561 spin_unlock(&rds_ring->lock);
1564 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1566 memset(&adapter->stats, 0, sizeof(adapter->stats));