2 * Copyright (C) 2003 - 2009 NetXen, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
23 * Contact Information:
27 * Cupertino, CA 95014-0701
31 #include <linux/netdevice.h>
32 #include <linux/delay.h>
33 #include "netxen_nic.h"
34 #include "netxen_nic_hw.h"
36 struct crb_addr_pair {
41 #define NETXEN_MAX_CRB_XFORM 60
42 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
43 #define NETXEN_ADDR_ERROR (0xffffffff)
45 #define crb_addr_transform(name) \
46 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
47 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
49 #define NETXEN_NIC_XDMA_RESET 0x8000ff
52 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
53 struct nx_host_rds_ring *rds_ring);
55 static void crb_addr_transform_setup(void)
57 crb_addr_transform(XDMA);
58 crb_addr_transform(TIMR);
59 crb_addr_transform(SRE);
60 crb_addr_transform(SQN3);
61 crb_addr_transform(SQN2);
62 crb_addr_transform(SQN1);
63 crb_addr_transform(SQN0);
64 crb_addr_transform(SQS3);
65 crb_addr_transform(SQS2);
66 crb_addr_transform(SQS1);
67 crb_addr_transform(SQS0);
68 crb_addr_transform(RPMX7);
69 crb_addr_transform(RPMX6);
70 crb_addr_transform(RPMX5);
71 crb_addr_transform(RPMX4);
72 crb_addr_transform(RPMX3);
73 crb_addr_transform(RPMX2);
74 crb_addr_transform(RPMX1);
75 crb_addr_transform(RPMX0);
76 crb_addr_transform(ROMUSB);
77 crb_addr_transform(SN);
78 crb_addr_transform(QMN);
79 crb_addr_transform(QMS);
80 crb_addr_transform(PGNI);
81 crb_addr_transform(PGND);
82 crb_addr_transform(PGN3);
83 crb_addr_transform(PGN2);
84 crb_addr_transform(PGN1);
85 crb_addr_transform(PGN0);
86 crb_addr_transform(PGSI);
87 crb_addr_transform(PGSD);
88 crb_addr_transform(PGS3);
89 crb_addr_transform(PGS2);
90 crb_addr_transform(PGS1);
91 crb_addr_transform(PGS0);
92 crb_addr_transform(PS);
93 crb_addr_transform(PH);
94 crb_addr_transform(NIU);
95 crb_addr_transform(I2Q);
96 crb_addr_transform(EG);
97 crb_addr_transform(MN);
98 crb_addr_transform(MS);
99 crb_addr_transform(CAS2);
100 crb_addr_transform(CAS1);
101 crb_addr_transform(CAS0);
102 crb_addr_transform(CAM);
103 crb_addr_transform(C2C1);
104 crb_addr_transform(C2C0);
105 crb_addr_transform(SMB);
106 crb_addr_transform(OCM0);
107 crb_addr_transform(I2C0);
110 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
112 struct netxen_recv_context *recv_ctx;
113 struct nx_host_rds_ring *rds_ring;
114 struct netxen_rx_buffer *rx_buf;
117 recv_ctx = &adapter->recv_ctx;
118 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
119 rds_ring = &recv_ctx->rds_rings[ring];
120 for (i = 0; i < rds_ring->num_desc; ++i) {
121 rx_buf = &(rds_ring->rx_buf_arr[i]);
122 if (rx_buf->state == NETXEN_BUFFER_FREE)
124 pci_unmap_single(adapter->pdev,
128 if (rx_buf->skb != NULL)
129 dev_kfree_skb_any(rx_buf->skb);
134 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
136 struct netxen_cmd_buffer *cmd_buf;
137 struct netxen_skb_frag *buffrag;
139 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
141 cmd_buf = tx_ring->cmd_buf_arr;
142 for (i = 0; i < tx_ring->num_desc; i++) {
143 buffrag = cmd_buf->frag_array;
145 pci_unmap_single(adapter->pdev, buffrag->dma,
146 buffrag->length, PCI_DMA_TODEVICE);
149 for (j = 0; j < cmd_buf->frag_count; j++) {
152 pci_unmap_page(adapter->pdev, buffrag->dma,
159 dev_kfree_skb_any(cmd_buf->skb);
166 void netxen_free_sw_resources(struct netxen_adapter *adapter)
168 struct netxen_recv_context *recv_ctx;
169 struct nx_host_rds_ring *rds_ring;
170 struct nx_host_tx_ring *tx_ring;
173 recv_ctx = &adapter->recv_ctx;
175 if (recv_ctx->rds_rings == NULL)
178 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
179 rds_ring = &recv_ctx->rds_rings[ring];
180 vfree(rds_ring->rx_buf_arr);
181 rds_ring->rx_buf_arr = NULL;
183 kfree(recv_ctx->rds_rings);
186 if (adapter->tx_ring == NULL)
189 tx_ring = adapter->tx_ring;
190 vfree(tx_ring->cmd_buf_arr);
193 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
195 struct netxen_recv_context *recv_ctx;
196 struct nx_host_rds_ring *rds_ring;
197 struct nx_host_sds_ring *sds_ring;
198 struct nx_host_tx_ring *tx_ring;
199 struct netxen_rx_buffer *rx_buf;
202 struct netxen_cmd_buffer *cmd_buf_arr;
203 struct net_device *netdev = adapter->netdev;
204 struct pci_dev *pdev = adapter->pdev;
206 size = sizeof(struct nx_host_tx_ring);
207 tx_ring = kzalloc(size, GFP_KERNEL);
208 if (tx_ring == NULL) {
209 dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
213 adapter->tx_ring = tx_ring;
215 tx_ring->num_desc = adapter->num_txd;
216 tx_ring->txq = netdev_get_tx_queue(netdev, 0);
218 cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
219 if (cmd_buf_arr == NULL) {
220 dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
224 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
225 tx_ring->cmd_buf_arr = cmd_buf_arr;
227 recv_ctx = &adapter->recv_ctx;
229 size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
230 rds_ring = kzalloc(size, GFP_KERNEL);
231 if (rds_ring == NULL) {
232 dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
236 recv_ctx->rds_rings = rds_ring;
238 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
239 rds_ring = &recv_ctx->rds_rings[ring];
241 case RCV_RING_NORMAL:
242 rds_ring->num_desc = adapter->num_rxd;
243 if (adapter->ahw.cut_through) {
245 NX_CT_DEFAULT_RX_BUF_LEN;
247 NX_CT_DEFAULT_RX_BUF_LEN;
249 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
251 NX_P3_RX_BUF_MAX_LEN;
254 NX_P2_RX_BUF_MAX_LEN;
256 rds_ring->dma_size + NET_IP_ALIGN;
261 rds_ring->num_desc = adapter->num_jumbo_rxd;
262 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
264 NX_P3_RX_JUMBO_BUF_MAX_LEN;
267 NX_P2_RX_JUMBO_BUF_MAX_LEN;
269 if (adapter->capabilities & NX_CAP0_HW_LRO)
270 rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
273 rds_ring->dma_size + NET_IP_ALIGN;
277 rds_ring->num_desc = adapter->num_lro_rxd;
278 rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
279 rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
283 rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
284 vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
285 if (rds_ring->rx_buf_arr == NULL) {
286 printk(KERN_ERR "%s: Failed to allocate "
287 "rx buffer ring %d\n",
289 /* free whatever was already allocated */
292 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
293 INIT_LIST_HEAD(&rds_ring->free_list);
295 * Now go through all of them, set reference handles
296 * and put them in the queues.
298 rx_buf = rds_ring->rx_buf_arr;
299 for (i = 0; i < rds_ring->num_desc; i++) {
300 list_add_tail(&rx_buf->list,
301 &rds_ring->free_list);
302 rx_buf->ref_handle = i;
303 rx_buf->state = NETXEN_BUFFER_FREE;
306 spin_lock_init(&rds_ring->lock);
309 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
310 sds_ring = &recv_ctx->sds_rings[ring];
311 sds_ring->irq = adapter->msix_entries[ring].vector;
312 sds_ring->adapter = adapter;
313 sds_ring->num_desc = adapter->num_rxd;
315 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
316 INIT_LIST_HEAD(&sds_ring->free_list[i]);
322 netxen_free_sw_resources(adapter);
326 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter)
328 adapter->init_port = netxen_niu_xg_init_port;
329 adapter->stop_port = netxen_niu_disable_xg_port;
331 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
332 adapter->macaddr_set = netxen_p2_nic_set_mac_addr;
333 adapter->set_multi = netxen_p2_nic_set_multi;
334 adapter->set_mtu = netxen_nic_set_mtu_xgb;
335 adapter->set_promisc = netxen_p2_nic_set_promisc;
337 adapter->set_mtu = nx_fw_cmd_set_mtu;
338 adapter->set_promisc = netxen_p3_nic_set_promisc;
339 adapter->macaddr_set = netxen_p3_nic_set_mac_addr;
340 adapter->set_multi = netxen_p3_nic_set_multi;
342 if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
343 adapter->phy_read = nx_fw_cmd_query_phy;
344 adapter->phy_write = nx_fw_cmd_set_phy;
350 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
351 * address to external PCI CRB address.
353 static u32 netxen_decode_crb_addr(u32 addr)
356 u32 base_addr, offset, pci_base;
358 crb_addr_transform_setup();
360 pci_base = NETXEN_ADDR_ERROR;
361 base_addr = addr & 0xfff00000;
362 offset = addr & 0x000fffff;
364 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
365 if (crb_addr_xform[i] == base_addr) {
370 if (pci_base == NETXEN_ADDR_ERROR)
373 return (pci_base + offset);
376 #define NETXEN_MAX_ROM_WAIT_USEC 100
378 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
386 done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
388 if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
389 dev_err(&adapter->pdev->dev,
390 "Timeout reached waiting for rom done");
398 static int do_rom_fast_read(struct netxen_adapter *adapter,
401 NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
402 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
403 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
404 NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
405 if (netxen_wait_rom_done(adapter)) {
406 printk("Error waiting for rom done\n");
409 /* reset abyte_cnt and dummy_byte_cnt */
410 NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
412 NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
414 *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
418 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
419 u8 *bytes, size_t size)
424 for (addridx = addr; addridx < (addr + size); addridx += 4) {
426 ret = do_rom_fast_read(adapter, addridx, &v);
429 *(__le32 *)bytes = cpu_to_le32(v);
437 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
438 u8 *bytes, size_t size)
442 ret = netxen_rom_lock(adapter);
446 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
448 netxen_rom_unlock(adapter);
452 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
456 if (netxen_rom_lock(adapter) != 0)
459 ret = do_rom_fast_read(adapter, addr, valp);
460 netxen_rom_unlock(adapter);
464 #define NETXEN_BOARDTYPE 0x4008
465 #define NETXEN_BOARDNUM 0x400c
466 #define NETXEN_CHIPNUM 0x4010
468 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
471 int i, n, init_delay = 0;
472 struct crb_addr_pair *buf;
477 netxen_rom_lock(adapter);
478 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xffffffff);
479 netxen_rom_unlock(adapter);
482 if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
483 printk("P2 ROM board type: 0x%08x\n", val);
485 printk("Could not read board type\n");
486 if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
487 printk("P2 ROM board num: 0x%08x\n", val);
489 printk("Could not read board number\n");
490 if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
491 printk("P2 ROM chip num: 0x%08x\n", val);
493 printk("Could not read chip number\n");
496 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
497 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
499 netxen_rom_fast_read(adapter, 4, &n) != 0) {
500 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
501 "n: %08x\n", netxen_nic_driver_name, n);
504 offset = n & 0xffffU;
505 n = (n >> 16) & 0xffffU;
507 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
509 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
510 "n: %08x\n", netxen_nic_driver_name, n);
519 printk(KERN_DEBUG "%s: %d CRB init values found"
520 " in ROM.\n", netxen_nic_driver_name, n);
522 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
523 " initialized.\n", __func__, n);
527 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
529 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
530 netxen_nic_driver_name);
533 for (i = 0; i < n; i++) {
534 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
535 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
544 printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n",
545 netxen_nic_driver_name,
546 (u32)netxen_decode_crb_addr(addr), val);
548 for (i = 0; i < n; i++) {
550 off = netxen_decode_crb_addr(buf[i].addr);
551 if (off == NETXEN_ADDR_ERROR) {
552 printk(KERN_ERR"CRB init value out of range %x\n",
556 off += NETXEN_PCI_CRBSPACE;
557 /* skipping cold reboot MAGIC */
558 if (off == NETXEN_CAM_RAM(0x1fc))
561 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
562 /* do not reset PCI */
563 if (off == (ROMUSB_GLB + 0xbc))
565 if (off == (ROMUSB_GLB + 0xa8))
567 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
569 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
571 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
573 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18))
574 buf[i].data = 0x1020;
575 /* skip the function enable register */
576 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
578 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
580 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
584 if (off == NETXEN_ADDR_ERROR) {
585 printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n",
586 netxen_nic_driver_name, buf[i].addr);
591 /* After writing this register, HW needs time for CRB */
592 /* to quiet down (else crb_window returns 0xffffffff) */
593 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
595 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
596 /* hold xdma in reset also */
597 buf[i].data = NETXEN_NIC_XDMA_RESET;
598 buf[i].data = 0x8000ff;
602 NXWR32(adapter, off, buf[i].data);
608 /* disable_peg_cache_all */
610 /* unreset_net_cache */
611 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
612 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
613 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
616 /* p2dn replyCount */
617 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
618 /* disable_peg_cache 0 */
619 NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
620 /* disable_peg_cache 1 */
621 NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
626 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
627 NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
629 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
630 NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
632 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
633 NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
635 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
636 NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
641 netxen_need_fw_reset(struct netxen_adapter *adapter)
643 u32 count, old_count;
644 u32 val, version, major, minor, build;
648 /* NX2031 firmware doesn't support heartbit */
649 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
652 /* last attempt had failed */
653 if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
656 old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
658 for (i = 0; i < 10; i++) {
660 timeout = msleep_interruptible(200);
662 NXWR32(adapter, CRB_CMDPEG_STATE,
663 PHAN_INITIALIZE_FAILED);
667 count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
668 if (count != old_count)
672 /* firmware is dead */
673 if (count == old_count)
676 /* check if we have got newer or different file firmware */
679 const struct firmware *fw = adapter->fw;
681 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
682 version = NETXEN_DECODE_VERSION(val);
684 major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
685 minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
686 build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
688 if (version > NETXEN_VERSION_CODE(major, minor, build))
691 if (version == NETXEN_VERSION_CODE(major, minor, build)) {
693 val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
694 fw_type = (val & 0x4) ?
695 NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
697 if (adapter->fw_type != fw_type)
705 static char *fw_name[] = {
706 "nxromimg.bin", "nx3fwct.bin", "nx3fwmn.bin", "flash",
710 netxen_load_firmware(struct netxen_adapter *adapter)
713 u32 i, flashaddr, size;
714 const struct firmware *fw = adapter->fw;
715 struct pci_dev *pdev = adapter->pdev;
717 dev_info(&pdev->dev, "loading firmware from %s\n",
718 fw_name[adapter->fw_type]);
720 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
721 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
726 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
728 ptr64 = (u64 *)&fw->data[NETXEN_BOOTLD_START];
729 flashaddr = NETXEN_BOOTLD_START;
731 for (i = 0; i < size; i++) {
732 data = cpu_to_le64(ptr64[i]);
733 adapter->pci_mem_write(adapter, flashaddr, &data, 8);
737 size = *(u32 *)&fw->data[NX_FW_SIZE_OFFSET];
738 size = (__force u32)cpu_to_le32(size) / 8;
740 ptr64 = (u64 *)&fw->data[NETXEN_IMAGE_START];
741 flashaddr = NETXEN_IMAGE_START;
743 for (i = 0; i < size; i++) {
744 data = cpu_to_le64(ptr64[i]);
746 if (adapter->pci_mem_write(adapter,
747 flashaddr, &data, 8))
755 size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 4;
756 flashaddr = NETXEN_BOOTLD_START;
758 for (i = 0; i < size; i++) {
759 if (netxen_rom_fast_read(adapter,
760 flashaddr, (int *)&data) != 0)
763 if (adapter->pci_mem_write(adapter,
764 flashaddr, &data, 4))
772 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
773 NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
775 NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
776 NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
783 netxen_validate_firmware(struct netxen_adapter *adapter, const char *fwname)
786 u32 ver, min_ver, bios;
787 struct pci_dev *pdev = adapter->pdev;
788 const struct firmware *fw = adapter->fw;
790 if (fw->size < NX_FW_MIN_SIZE)
793 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
794 if ((__force u32)val != NETXEN_BDINFO_MAGIC)
797 val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
799 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
800 min_ver = NETXEN_VERSION_CODE(4, 0, 216);
802 min_ver = NETXEN_VERSION_CODE(3, 4, 216);
804 ver = NETXEN_DECODE_VERSION(val);
806 if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
808 "%s: firmware version %d.%d.%d unsupported\n",
809 fwname, _major(ver), _minor(ver), _build(ver));
813 val = cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
814 netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
815 if ((__force u32)val != bios) {
816 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
821 /* check if flashed firmware is newer */
822 if (netxen_rom_fast_read(adapter,
823 NX_FW_VERSION_OFFSET, (int *)&val))
825 val = NETXEN_DECODE_VERSION(val);
827 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
832 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
837 netxen_p3_has_mn(struct netxen_adapter *adapter)
839 u32 capability, flashed_ver;
842 netxen_rom_fast_read(adapter,
843 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
844 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
846 if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
848 capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
849 if (capability & NX_PEG_TUNE_MN_PRESENT)
855 void netxen_request_firmware(struct netxen_adapter *adapter)
858 struct pci_dev *pdev = adapter->pdev;
861 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
862 fw_type = NX_P2_MN_ROMIMAGE;
866 fw_type = netxen_p3_has_mn(adapter) ?
867 NX_P3_MN_ROMIMAGE : NX_P3_CT_ROMIMAGE;
870 rc = request_firmware(&adapter->fw, fw_name[fw_type], &pdev->dev);
872 if (fw_type == NX_P3_MN_ROMIMAGE) {
874 fw_type = NX_P3_CT_ROMIMAGE;
878 fw_type = NX_FLASH_ROMIMAGE;
883 rc = netxen_validate_firmware(adapter, fw_name[fw_type]);
885 release_firmware(adapter->fw);
887 if (fw_type == NX_P3_MN_ROMIMAGE) {
889 fw_type = NX_P3_CT_ROMIMAGE;
893 fw_type = NX_FLASH_ROMIMAGE;
899 adapter->fw_type = fw_type;
904 netxen_release_firmware(struct netxen_adapter *adapter)
907 release_firmware(adapter->fw);
911 int netxen_init_dummy_dma(struct netxen_adapter *adapter)
916 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
919 adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
920 NETXEN_HOST_DUMMY_DMA_SIZE,
921 &adapter->dummy_dma.phys_addr);
922 if (adapter->dummy_dma.addr == NULL) {
923 dev_err(&adapter->pdev->dev,
924 "ERROR: Could not allocate dummy DMA memory\n");
928 addr = (uint64_t) adapter->dummy_dma.phys_addr;
929 hi = (addr >> 32) & 0xffffffff;
930 lo = addr & 0xffffffff;
932 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
933 NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
939 * NetXen DMA watchdog control:
941 * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
942 * Bit 1 : disable_request => 1 req disable dma watchdog
943 * Bit 2 : enable_request => 1 req enable dma watchdog
946 void netxen_free_dummy_dma(struct netxen_adapter *adapter)
951 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
954 if (!adapter->dummy_dma.addr)
957 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
958 if ((ctrl & 0x1) != 0) {
959 NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
961 while ((ctrl & 0x1) != 0) {
965 ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
973 pci_free_consistent(adapter->pdev,
974 NETXEN_HOST_DUMMY_DMA_SIZE,
975 adapter->dummy_dma.addr,
976 adapter->dummy_dma.phys_addr);
977 adapter->dummy_dma.addr = NULL;
979 dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
982 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
991 val = NXRD32(adapter, CRB_CMDPEG_STATE);
994 case PHAN_INITIALIZE_COMPLETE:
995 case PHAN_INITIALIZE_ACK:
997 case PHAN_INITIALIZE_FAILED:
1005 } while (--retries);
1007 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1010 dev_warn(&adapter->pdev->dev, "firmware init failed\n");
1015 netxen_receive_peg_ready(struct netxen_adapter *adapter)
1021 val = NXRD32(adapter, CRB_RCVPEG_STATE);
1023 if (val == PHAN_PEG_RCV_INITIALIZED)
1028 } while (--retries);
1031 printk(KERN_ERR "Receive Peg initialization not "
1032 "complete, state: 0x%x.\n", val);
1039 int netxen_init_firmware(struct netxen_adapter *adapter)
1043 err = netxen_receive_peg_ready(adapter);
1047 NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1048 NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
1049 NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1050 NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1056 netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
1061 u8 link_status, module, duplex, autoneg;
1062 struct net_device *netdev = adapter->netdev;
1064 adapter->has_link_events = 1;
1066 cable_OUI = msg->body[1] & 0xffffffff;
1067 cable_len = (msg->body[1] >> 32) & 0xffff;
1068 link_speed = (msg->body[1] >> 48) & 0xffff;
1070 link_status = msg->body[2] & 0xff;
1071 duplex = (msg->body[2] >> 16) & 0xff;
1072 autoneg = (msg->body[2] >> 24) & 0xff;
1074 module = (msg->body[2] >> 8) & 0xff;
1075 if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
1076 printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
1077 netdev->name, cable_OUI, cable_len);
1078 } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
1079 printk(KERN_INFO "%s: unsupported cable length %d\n",
1080 netdev->name, cable_len);
1083 netxen_advert_link_change(adapter, link_status);
1085 /* update link parameters */
1086 if (duplex == LINKEVENT_FULL_DUPLEX)
1087 adapter->link_duplex = DUPLEX_FULL;
1089 adapter->link_duplex = DUPLEX_HALF;
1090 adapter->module_type = module;
1091 adapter->link_autoneg = autoneg;
1092 adapter->link_speed = link_speed;
1096 netxen_handle_fw_message(int desc_cnt, int index,
1097 struct nx_host_sds_ring *sds_ring)
1100 struct status_desc *desc;
1103 while (desc_cnt > 0 && i < 8) {
1104 desc = &sds_ring->desc_head[index];
1105 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1106 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1108 index = get_next_index(index, sds_ring->num_desc);
1112 opcode = netxen_get_nic_msg_opcode(msg.body[0]);
1114 case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1115 netxen_handle_linkevent(sds_ring->adapter, &msg);
1123 netxen_alloc_rx_skb(struct netxen_adapter *adapter,
1124 struct nx_host_rds_ring *rds_ring,
1125 struct netxen_rx_buffer *buffer)
1127 struct sk_buff *skb;
1129 struct pci_dev *pdev = adapter->pdev;
1131 buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1137 if (!adapter->ahw.cut_through)
1138 skb_reserve(skb, 2);
1140 dma = pci_map_single(pdev, skb->data,
1141 rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1143 if (pci_dma_mapping_error(pdev, dma)) {
1144 dev_kfree_skb_any(skb);
1151 buffer->state = NETXEN_BUFFER_BUSY;
1156 static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
1157 struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
1159 struct netxen_rx_buffer *buffer;
1160 struct sk_buff *skb;
1162 buffer = &rds_ring->rx_buf_arr[index];
1164 pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1165 PCI_DMA_FROMDEVICE);
1171 if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1172 adapter->stats.csummed++;
1173 skb->ip_summed = CHECKSUM_UNNECESSARY;
1175 skb->ip_summed = CHECKSUM_NONE;
1177 skb->dev = adapter->netdev;
1181 buffer->state = NETXEN_BUFFER_FREE;
1185 static struct netxen_rx_buffer *
1186 netxen_process_rcv(struct netxen_adapter *adapter,
1187 struct nx_host_sds_ring *sds_ring,
1188 int ring, u64 sts_data0)
1190 struct net_device *netdev = adapter->netdev;
1191 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1192 struct netxen_rx_buffer *buffer;
1193 struct sk_buff *skb;
1194 struct nx_host_rds_ring *rds_ring;
1195 int index, length, cksum, pkt_offset;
1197 if (unlikely(ring >= adapter->max_rds_rings))
1200 rds_ring = &recv_ctx->rds_rings[ring];
1202 index = netxen_get_sts_refhandle(sts_data0);
1203 if (unlikely(index >= rds_ring->num_desc))
1206 buffer = &rds_ring->rx_buf_arr[index];
1208 length = netxen_get_sts_totallength(sts_data0);
1209 cksum = netxen_get_sts_status(sts_data0);
1210 pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
1212 skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
1216 if (length > rds_ring->skb_size)
1217 skb_put(skb, rds_ring->skb_size);
1219 skb_put(skb, length);
1223 skb_pull(skb, pkt_offset);
1225 skb->truesize = skb->len + sizeof(struct sk_buff);
1226 skb->protocol = eth_type_trans(skb, netdev);
1228 napi_gro_receive(&sds_ring->napi, skb);
1230 adapter->stats.rx_pkts++;
1231 adapter->stats.rxbytes += length;
1236 #define TCP_HDR_SIZE 20
1237 #define TCP_TS_OPTION_SIZE 12
1238 #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
1240 static struct netxen_rx_buffer *
1241 netxen_process_lro(struct netxen_adapter *adapter,
1242 struct nx_host_sds_ring *sds_ring,
1243 int ring, u64 sts_data0, u64 sts_data1)
1245 struct net_device *netdev = adapter->netdev;
1246 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1247 struct netxen_rx_buffer *buffer;
1248 struct sk_buff *skb;
1249 struct nx_host_rds_ring *rds_ring;
1252 bool push, timestamp;
1253 int l2_hdr_offset, l4_hdr_offset;
1255 u16 lro_length, length, data_offset;
1258 if (unlikely(ring > adapter->max_rds_rings))
1261 rds_ring = &recv_ctx->rds_rings[ring];
1263 index = netxen_get_lro_sts_refhandle(sts_data0);
1264 if (unlikely(index > rds_ring->num_desc))
1267 buffer = &rds_ring->rx_buf_arr[index];
1269 timestamp = netxen_get_lro_sts_timestamp(sts_data0);
1270 lro_length = netxen_get_lro_sts_length(sts_data0);
1271 l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
1272 l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
1273 push = netxen_get_lro_sts_push_flag(sts_data0);
1274 seq_number = netxen_get_lro_sts_seq_number(sts_data1);
1276 skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1281 data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
1283 data_offset = l4_hdr_offset + TCP_HDR_SIZE;
1285 skb_put(skb, lro_length + data_offset);
1287 skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1289 skb_pull(skb, l2_hdr_offset);
1290 skb->protocol = eth_type_trans(skb, netdev);
1292 iph = (struct iphdr *)skb->data;
1293 th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1295 length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1296 iph->tot_len = htons(length);
1298 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1300 th->seq = htonl(seq_number);
1304 netif_receive_skb(skb);
1306 adapter->stats.lro_pkts++;
1307 adapter->stats.rxbytes += length;
1312 #define netxen_merge_rx_buffers(list, head) \
1313 do { list_splice_tail_init(list, head); } while (0);
1316 netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
1318 struct netxen_adapter *adapter = sds_ring->adapter;
1320 struct list_head *cur;
1322 struct status_desc *desc;
1323 struct netxen_rx_buffer *rxbuf;
1325 u32 consumer = sds_ring->consumer;
1328 u64 sts_data0, sts_data1;
1329 int opcode, ring = 0, desc_cnt;
1331 while (count < max) {
1332 desc = &sds_ring->desc_head[consumer];
1333 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1335 if (!(sts_data0 & STATUS_OWNER_HOST))
1338 desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
1340 opcode = netxen_get_sts_opcode(sts_data0);
1343 case NETXEN_NIC_RXPKT_DESC:
1344 case NETXEN_OLD_RXPKT_DESC:
1345 case NETXEN_NIC_SYN_OFFLOAD:
1346 ring = netxen_get_sts_type(sts_data0);
1347 rxbuf = netxen_process_rcv(adapter, sds_ring,
1350 case NETXEN_NIC_LRO_DESC:
1351 ring = netxen_get_lro_sts_type(sts_data0);
1352 sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1353 rxbuf = netxen_process_lro(adapter, sds_ring,
1354 ring, sts_data0, sts_data1);
1356 case NETXEN_NIC_RESPONSE_DESC:
1357 netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
1362 WARN_ON(desc_cnt > 1);
1365 list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1368 for (; desc_cnt > 0; desc_cnt--) {
1369 desc = &sds_ring->desc_head[consumer];
1370 desc->status_desc_data[0] =
1371 cpu_to_le64(STATUS_OWNER_PHANTOM);
1372 consumer = get_next_index(consumer, sds_ring->num_desc);
1377 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1378 struct nx_host_rds_ring *rds_ring =
1379 &adapter->recv_ctx.rds_rings[ring];
1381 if (!list_empty(&sds_ring->free_list[ring])) {
1382 list_for_each(cur, &sds_ring->free_list[ring]) {
1383 rxbuf = list_entry(cur,
1384 struct netxen_rx_buffer, list);
1385 netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
1387 spin_lock(&rds_ring->lock);
1388 netxen_merge_rx_buffers(&sds_ring->free_list[ring],
1389 &rds_ring->free_list);
1390 spin_unlock(&rds_ring->lock);
1393 netxen_post_rx_buffers_nodb(adapter, rds_ring);
1397 sds_ring->consumer = consumer;
1398 NXWR32(adapter, sds_ring->crb_sts_consumer, consumer);
1404 /* Process Command status ring */
1405 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1407 u32 sw_consumer, hw_consumer;
1409 struct netxen_cmd_buffer *buffer;
1410 struct pci_dev *pdev = adapter->pdev;
1411 struct net_device *netdev = adapter->netdev;
1412 struct netxen_skb_frag *frag;
1414 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1416 if (!spin_trylock(&adapter->tx_clean_lock))
1419 sw_consumer = tx_ring->sw_consumer;
1420 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1422 while (sw_consumer != hw_consumer) {
1423 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1425 frag = &buffer->frag_array[0];
1426 pci_unmap_single(pdev, frag->dma, frag->length,
1429 for (i = 1; i < buffer->frag_count; i++) {
1430 frag++; /* Get the next frag */
1431 pci_unmap_page(pdev, frag->dma, frag->length,
1436 adapter->stats.xmitfinished++;
1437 dev_kfree_skb_any(buffer->skb);
1441 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1442 if (++count >= MAX_STATUS_HANDLE)
1446 if (count && netif_running(netdev)) {
1447 tx_ring->sw_consumer = sw_consumer;
1451 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1452 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1453 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1454 netif_wake_queue(netdev);
1455 __netif_tx_unlock(tx_ring->txq);
1459 * If everything is freed up to consumer then check if the ring is full
1460 * If the ring is full then check if more needs to be freed and
1461 * schedule the call back again.
1463 * This happens when there are 2 CPUs. One could be freeing and the
1464 * other filling it. If the ring is full when we get out of here and
1465 * the card has already interrupted the host then the host can miss the
1468 * There is still a possible race condition and the host could miss an
1469 * interrupt. The card has to take care of this.
1471 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1472 done = (sw_consumer == hw_consumer);
1473 spin_unlock(&adapter->tx_clean_lock);
1479 netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
1480 struct nx_host_rds_ring *rds_ring)
1482 struct rcv_desc *pdesc;
1483 struct netxen_rx_buffer *buffer;
1484 int producer, count = 0;
1485 netxen_ctx_msg msg = 0;
1486 struct list_head *head;
1488 producer = rds_ring->producer;
1490 spin_lock(&rds_ring->lock);
1491 head = &rds_ring->free_list;
1492 while (!list_empty(head)) {
1494 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1497 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1502 list_del(&buffer->list);
1504 /* make a rcv descriptor */
1505 pdesc = &rds_ring->desc_head[producer];
1506 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1507 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1508 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1510 producer = get_next_index(producer, rds_ring->num_desc);
1512 spin_unlock(&rds_ring->lock);
1515 rds_ring->producer = producer;
1516 NXWR32(adapter, rds_ring->crb_rcv_producer,
1517 (producer-1) & (rds_ring->num_desc-1));
1519 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1521 * Write a doorbell msg to tell phanmon of change in
1522 * receive ring producer
1523 * Only for firmware version < 4.0.0
1525 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1526 netxen_set_msg_privid(msg);
1527 netxen_set_msg_count(msg,
1529 (rds_ring->num_desc - 1)));
1530 netxen_set_msg_ctxid(msg, adapter->portnum);
1531 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1533 DB_NORMALIZE(adapter,
1534 NETXEN_RCV_PRODUCER_OFFSET));
1540 netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1541 struct nx_host_rds_ring *rds_ring)
1543 struct rcv_desc *pdesc;
1544 struct netxen_rx_buffer *buffer;
1545 int producer, count = 0;
1546 struct list_head *head;
1548 producer = rds_ring->producer;
1549 if (!spin_trylock(&rds_ring->lock))
1552 head = &rds_ring->free_list;
1553 while (!list_empty(head)) {
1555 buffer = list_entry(head->next, struct netxen_rx_buffer, list);
1558 if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
1563 list_del(&buffer->list);
1565 /* make a rcv descriptor */
1566 pdesc = &rds_ring->desc_head[producer];
1567 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1568 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1569 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1571 producer = get_next_index(producer, rds_ring->num_desc);
1575 rds_ring->producer = producer;
1576 NXWR32(adapter, rds_ring->crb_rcv_producer,
1577 (producer - 1) & (rds_ring->num_desc - 1));
1579 spin_unlock(&rds_ring->lock);
1582 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1584 memset(&adapter->stats, 0, sizeof(adapter->stats));