2 * Copyright (C) 2003 - 2006 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:
26 * 3965 Freedom Circle, Fourth floor,
27 * Santa Clara, CA 95054
30 * Source file for NIC routines to initialize the Phantom Hardware
34 #include <linux/netdevice.h>
35 #include <linux/delay.h>
36 #include "netxen_nic.h"
37 #include "netxen_nic_hw.h"
38 #include "netxen_nic_phan_reg.h"
40 struct crb_addr_pair {
45 #define NETXEN_MAX_CRB_XFORM 60
46 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
47 #define NETXEN_ADDR_ERROR (0xffffffff)
49 #define crb_addr_transform(name) \
50 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
51 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
53 #define NETXEN_NIC_XDMA_RESET 0x8000ff
55 static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
56 uint32_t ctx, uint32_t ringid);
59 static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter,
60 unsigned long off, int *data)
62 void __iomem *addr = pci_base_offset(adapter, off);
67 static void crb_addr_transform_setup(void)
69 crb_addr_transform(XDMA);
70 crb_addr_transform(TIMR);
71 crb_addr_transform(SRE);
72 crb_addr_transform(SQN3);
73 crb_addr_transform(SQN2);
74 crb_addr_transform(SQN1);
75 crb_addr_transform(SQN0);
76 crb_addr_transform(SQS3);
77 crb_addr_transform(SQS2);
78 crb_addr_transform(SQS1);
79 crb_addr_transform(SQS0);
80 crb_addr_transform(RPMX7);
81 crb_addr_transform(RPMX6);
82 crb_addr_transform(RPMX5);
83 crb_addr_transform(RPMX4);
84 crb_addr_transform(RPMX3);
85 crb_addr_transform(RPMX2);
86 crb_addr_transform(RPMX1);
87 crb_addr_transform(RPMX0);
88 crb_addr_transform(ROMUSB);
89 crb_addr_transform(SN);
90 crb_addr_transform(QMN);
91 crb_addr_transform(QMS);
92 crb_addr_transform(PGNI);
93 crb_addr_transform(PGND);
94 crb_addr_transform(PGN3);
95 crb_addr_transform(PGN2);
96 crb_addr_transform(PGN1);
97 crb_addr_transform(PGN0);
98 crb_addr_transform(PGSI);
99 crb_addr_transform(PGSD);
100 crb_addr_transform(PGS3);
101 crb_addr_transform(PGS2);
102 crb_addr_transform(PGS1);
103 crb_addr_transform(PGS0);
104 crb_addr_transform(PS);
105 crb_addr_transform(PH);
106 crb_addr_transform(NIU);
107 crb_addr_transform(I2Q);
108 crb_addr_transform(EG);
109 crb_addr_transform(MN);
110 crb_addr_transform(MS);
111 crb_addr_transform(CAS2);
112 crb_addr_transform(CAS1);
113 crb_addr_transform(CAS0);
114 crb_addr_transform(CAM);
115 crb_addr_transform(C2C1);
116 crb_addr_transform(C2C0);
117 crb_addr_transform(SMB);
118 crb_addr_transform(OCM0);
119 crb_addr_transform(I2C0);
122 int netxen_init_firmware(struct netxen_adapter *adapter)
124 u32 state = 0, loops = 0, err = 0;
127 state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE);
129 if (state == PHAN_INITIALIZE_ACK)
132 while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) {
135 state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE);
140 printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n",
146 adapter->pci_write_normalize(adapter,
147 CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
148 adapter->pci_write_normalize(adapter,
149 CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
150 adapter->pci_write_normalize(adapter,
151 CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
152 adapter->pci_write_normalize(adapter,
153 CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
158 void netxen_release_rx_buffers(struct netxen_adapter *adapter)
160 struct netxen_recv_context *recv_ctx;
161 struct netxen_rcv_desc_ctx *rcv_desc;
162 struct netxen_rx_buffer *rx_buf;
165 for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
166 recv_ctx = &adapter->recv_ctx[ctxid];
167 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
168 rcv_desc = &recv_ctx->rcv_desc[ring];
169 for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) {
170 rx_buf = &(rcv_desc->rx_buf_arr[i]);
171 if (rx_buf->state == NETXEN_BUFFER_FREE)
173 pci_unmap_single(adapter->pdev,
177 if (rx_buf->skb != NULL)
178 dev_kfree_skb_any(rx_buf->skb);
184 void netxen_release_tx_buffers(struct netxen_adapter *adapter)
186 struct netxen_cmd_buffer *cmd_buf;
187 struct netxen_skb_frag *buffrag;
190 cmd_buf = adapter->cmd_buf_arr;
191 for (i = 0; i < adapter->max_tx_desc_count; i++) {
192 buffrag = cmd_buf->frag_array;
194 pci_unmap_single(adapter->pdev, buffrag->dma,
195 buffrag->length, PCI_DMA_TODEVICE);
198 for (j = 0; j < cmd_buf->frag_count; j++) {
201 pci_unmap_page(adapter->pdev, buffrag->dma,
207 /* Free the skb we received in netxen_nic_xmit_frame */
209 dev_kfree_skb_any(cmd_buf->skb);
216 void netxen_free_sw_resources(struct netxen_adapter *adapter)
218 struct netxen_recv_context *recv_ctx;
219 struct netxen_rcv_desc_ctx *rcv_desc;
222 for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) {
223 recv_ctx = &adapter->recv_ctx[ctx];
224 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
225 rcv_desc = &recv_ctx->rcv_desc[ring];
226 if (rcv_desc->rx_buf_arr) {
227 vfree(rcv_desc->rx_buf_arr);
228 rcv_desc->rx_buf_arr = NULL;
232 if (adapter->cmd_buf_arr)
233 vfree(adapter->cmd_buf_arr);
237 int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
239 struct netxen_recv_context *recv_ctx;
240 struct netxen_rcv_desc_ctx *rcv_desc;
241 struct netxen_rx_buffer *rx_buf;
242 int ctx, ring, i, num_rx_bufs;
244 struct netxen_cmd_buffer *cmd_buf_arr;
245 struct net_device *netdev = adapter->netdev;
247 cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE);
248 if (cmd_buf_arr == NULL) {
249 printk(KERN_ERR "%s: Failed to allocate cmd buffer ring\n",
253 memset(cmd_buf_arr, 0, TX_RINGSIZE);
254 adapter->cmd_buf_arr = cmd_buf_arr;
256 for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) {
257 recv_ctx = &adapter->recv_ctx[ctx];
258 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
259 rcv_desc = &recv_ctx->rcv_desc[ring];
260 switch (RCV_DESC_TYPE(ring)) {
261 case RCV_DESC_NORMAL:
262 rcv_desc->max_rx_desc_count =
263 adapter->max_rx_desc_count;
264 rcv_desc->flags = RCV_DESC_NORMAL;
265 rcv_desc->dma_size = RX_DMA_MAP_LEN;
266 rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH;
270 rcv_desc->max_rx_desc_count =
271 adapter->max_jumbo_rx_desc_count;
272 rcv_desc->flags = RCV_DESC_JUMBO;
273 rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN;
275 MAX_RX_JUMBO_BUFFER_LENGTH;
279 rcv_desc->max_rx_desc_count =
280 adapter->max_lro_rx_desc_count;
281 rcv_desc->flags = RCV_DESC_LRO;
282 rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN;
283 rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH;
287 rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *)
288 vmalloc(RCV_BUFFSIZE);
289 if (rcv_desc->rx_buf_arr == NULL) {
290 printk(KERN_ERR "%s: Failed to allocate "
291 "rx buffer ring %d\n",
293 /* free whatever was already allocated */
296 memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE);
297 rcv_desc->begin_alloc = 0;
299 * Now go through all of them, set reference handles
300 * and put them in the queues.
302 num_rx_bufs = rcv_desc->max_rx_desc_count;
303 rx_buf = rcv_desc->rx_buf_arr;
304 for (i = 0; i < num_rx_bufs; i++) {
305 rx_buf->ref_handle = i;
306 rx_buf->state = NETXEN_BUFFER_FREE;
315 netxen_free_sw_resources(adapter);
319 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter)
321 switch (adapter->ahw.board_type) {
323 adapter->enable_phy_interrupts =
324 netxen_niu_gbe_enable_phy_interrupts;
325 adapter->disable_phy_interrupts =
326 netxen_niu_gbe_disable_phy_interrupts;
327 adapter->handle_phy_intr = netxen_nic_gbe_handle_phy_intr;
328 adapter->macaddr_set = netxen_niu_macaddr_set;
329 adapter->set_mtu = netxen_nic_set_mtu_gb;
330 adapter->set_promisc = netxen_niu_set_promiscuous_mode;
331 adapter->phy_read = netxen_niu_gbe_phy_read;
332 adapter->phy_write = netxen_niu_gbe_phy_write;
333 adapter->init_niu = netxen_nic_init_niu_gb;
334 adapter->stop_port = netxen_niu_disable_gbe_port;
337 case NETXEN_NIC_XGBE:
338 adapter->enable_phy_interrupts =
339 netxen_niu_xgbe_enable_phy_interrupts;
340 adapter->disable_phy_interrupts =
341 netxen_niu_xgbe_disable_phy_interrupts;
342 adapter->handle_phy_intr = netxen_nic_xgbe_handle_phy_intr;
343 adapter->macaddr_set = netxen_niu_xg_macaddr_set;
344 adapter->set_mtu = netxen_nic_set_mtu_xgb;
345 adapter->init_port = netxen_niu_xg_init_port;
346 adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode;
347 adapter->stop_port = netxen_niu_disable_xg_port;
356 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
357 * address to external PCI CRB address.
359 static u32 netxen_decode_crb_addr(u32 addr)
362 u32 base_addr, offset, pci_base;
364 crb_addr_transform_setup();
366 pci_base = NETXEN_ADDR_ERROR;
367 base_addr = addr & 0xfff00000;
368 offset = addr & 0x000fffff;
370 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
371 if (crb_addr_xform[i] == base_addr) {
376 if (pci_base == NETXEN_ADDR_ERROR)
379 return (pci_base + offset);
382 static long rom_max_timeout = 100;
383 static long rom_lock_timeout = 10000;
385 static long rom_write_timeout = 700;
388 static int rom_lock(struct netxen_adapter *adapter)
395 /* acquire semaphore2 from PCI HW block */
396 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK),
400 if (timeout >= rom_lock_timeout)
410 for (iter = 0; iter < 20; iter++)
411 cpu_relax(); /*This a nop instr on i386 */
414 netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER);
418 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
424 done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS);
427 if (timeout >= rom_max_timeout) {
428 printk("Timeout reached waiting for rom done");
436 static int netxen_rom_wren(struct netxen_adapter *adapter)
438 /* Set write enable latch in ROM status register */
439 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
440 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
442 if (netxen_wait_rom_done(adapter)) {
448 static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter,
451 unsigned int data = 0xdeaddead;
452 data = netxen_nic_reg_read(adapter, addr);
456 static int netxen_do_rom_rdsr(struct netxen_adapter *adapter)
458 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
460 if (netxen_wait_rom_done(adapter)) {
463 return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA);
467 static void netxen_rom_unlock(struct netxen_adapter *adapter)
471 /* release semaphore2 */
472 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val);
477 static int netxen_rom_wip_poll(struct netxen_adapter *adapter)
482 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
484 val = netxen_do_rom_rdsr(adapter);
487 if (timeout > rom_max_timeout) {
494 static int do_rom_fast_write(struct netxen_adapter *adapter, int addr,
497 if (netxen_rom_wren(adapter)) {
500 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
501 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
502 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
503 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
505 if (netxen_wait_rom_done(adapter)) {
506 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
510 return netxen_rom_wip_poll(adapter);
514 static int do_rom_fast_read(struct netxen_adapter *adapter,
519 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
520 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
521 udelay(100); /* prevent bursting on CRB */
522 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
523 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
524 if (netxen_wait_rom_done(adapter)) {
525 printk("Error waiting for rom done\n");
528 /* reset abyte_cnt and dummy_byte_cnt */
529 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
530 udelay(100); /* prevent bursting on CRB */
531 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
533 *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);
537 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
538 u8 *bytes, size_t size)
543 for (addridx = addr; addridx < (addr + size); addridx += 4) {
545 ret = do_rom_fast_read(adapter, addridx, &v);
548 *(__le32 *)bytes = cpu_to_le32(v);
556 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
557 u8 *bytes, size_t size)
561 ret = rom_lock(adapter);
565 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
567 netxen_rom_unlock(adapter);
571 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
575 if (rom_lock(adapter) != 0)
578 ret = do_rom_fast_read(adapter, addr, valp);
579 netxen_rom_unlock(adapter);
584 int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data)
588 if (rom_lock(adapter) != 0) {
591 ret = do_rom_fast_write(adapter, addr, data);
592 netxen_rom_unlock(adapter);
596 static int do_rom_fast_write_words(struct netxen_adapter *adapter,
597 int addr, u8 *bytes, size_t size)
602 while (addridx < (addr + size)) {
603 int last_attempt = 0;
607 data = le32_to_cpu((*(__le32*)bytes));
608 ret = do_rom_fast_write(adapter, addridx, data);
615 ret = do_rom_fast_read(adapter, addridx, &data1);
622 if (timeout++ >= rom_write_timeout) {
623 if (last_attempt++ < 4) {
624 ret = do_rom_fast_write(adapter,
630 printk(KERN_INFO "Data write did not "
631 "succeed at address 0x%x\n", addridx);
644 int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr,
645 u8 *bytes, size_t size)
649 ret = rom_lock(adapter);
653 ret = do_rom_fast_write_words(adapter, addr, bytes, size);
654 netxen_rom_unlock(adapter);
659 static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data)
663 ret = netxen_rom_wren(adapter);
667 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
668 netxen_crb_writelit_adapter(adapter,
669 NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1);
671 ret = netxen_wait_rom_done(adapter);
675 return netxen_rom_wip_poll(adapter);
678 static int netxen_rom_rdsr(struct netxen_adapter *adapter)
682 ret = rom_lock(adapter);
686 ret = netxen_do_rom_rdsr(adapter);
687 netxen_rom_unlock(adapter);
691 int netxen_backup_crbinit(struct netxen_adapter *adapter)
693 int ret = FLASH_SUCCESS;
695 char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL);
699 /* unlock sector 63 */
700 val = netxen_rom_rdsr(adapter);
702 ret = netxen_rom_wrsr(adapter, val);
703 if (ret != FLASH_SUCCESS)
706 ret = netxen_rom_wip_poll(adapter);
707 if (ret != FLASH_SUCCESS)
710 /* copy sector 0 to sector 63 */
711 ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START,
712 buffer, NETXEN_FLASH_SECTOR_SIZE);
713 if (ret != FLASH_SUCCESS)
716 ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START,
717 buffer, NETXEN_FLASH_SECTOR_SIZE);
718 if (ret != FLASH_SUCCESS)
722 val = netxen_rom_rdsr(adapter);
726 if (netxen_rom_wrsr(adapter, val) == 0) {
727 ret = netxen_rom_wip_poll(adapter);
728 if (ret != FLASH_SUCCESS)
732 ret = netxen_rom_wip_poll(adapter);
733 if (ret != FLASH_SUCCESS)
743 static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
745 netxen_rom_wren(adapter);
746 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
747 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
748 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
750 if (netxen_wait_rom_done(adapter)) {
751 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
754 return netxen_rom_wip_poll(adapter);
757 static void check_erased_flash(struct netxen_adapter *adapter, int addr)
761 int count = 0, erased_errors = 0;
764 range = (addr == NETXEN_USER_START) ?
765 NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE;
767 for (i = addr; i < range; i += 4) {
768 netxen_rom_fast_read(adapter, i, &val);
769 if (val != 0xffffffff)
775 printk(KERN_INFO "0x%x out of 0x%x words fail to be erased "
776 "for sector address: %x\n", erased_errors, count, addr);
779 int netxen_rom_se(struct netxen_adapter *adapter, int addr)
782 if (rom_lock(adapter) != 0) {
785 ret = netxen_do_rom_se(adapter, addr);
786 netxen_rom_unlock(adapter);
788 check_erased_flash(adapter, addr);
793 static int netxen_flash_erase_sections(struct netxen_adapter *adapter,
796 int ret = FLASH_SUCCESS;
799 for (i = start; i < end; i++) {
800 ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE);
803 ret = netxen_rom_wip_poll(adapter);
812 netxen_flash_erase_secondary(struct netxen_adapter *adapter)
814 int ret = FLASH_SUCCESS;
817 start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
818 end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE;
819 ret = netxen_flash_erase_sections(adapter, start, end);
825 netxen_flash_erase_primary(struct netxen_adapter *adapter)
827 int ret = FLASH_SUCCESS;
830 start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE;
831 end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
832 ret = netxen_flash_erase_sections(adapter, start, end);
837 void netxen_halt_pegs(struct netxen_adapter *adapter)
839 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1);
840 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1);
841 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1);
842 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1);
845 int netxen_flash_unlock(struct netxen_adapter *adapter)
849 ret = netxen_rom_wrsr(adapter, 0);
853 ret = netxen_rom_wren(adapter);
861 #define NETXEN_BOARDTYPE 0x4008
862 #define NETXEN_BOARDNUM 0x400c
863 #define NETXEN_CHIPNUM 0x4010
865 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
868 int i, init_delay = 0;
869 struct crb_addr_pair *buf;
874 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
878 if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
879 printk("P2 ROM board type: 0x%08x\n", val);
881 printk("Could not read board type\n");
882 if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
883 printk("P2 ROM board num: 0x%08x\n", val);
885 printk("Could not read board number\n");
886 if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
887 printk("P2 ROM chip num: 0x%08x\n", val);
889 printk("Could not read chip number\n");
892 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
893 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
894 (n != 0xcafecafeUL) ||
895 netxen_rom_fast_read(adapter, 4, &n) != 0) {
896 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
897 "n: %08x\n", netxen_nic_driver_name, n);
900 offset = n & 0xffffU;
901 n = (n >> 16) & 0xffffU;
903 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
905 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
906 "n: %08x\n", netxen_nic_driver_name, n);
915 printk(KERN_DEBUG "%s: %d CRB init values found"
916 " in ROM.\n", netxen_nic_driver_name, n);
918 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
919 " initialized.\n", __func__, n);
923 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
925 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
926 netxen_nic_driver_name);
929 for (i = 0; i < n; i++) {
930 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
931 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0)
938 printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n",
939 netxen_nic_driver_name,
940 (u32)netxen_decode_crb_addr(addr), val);
942 for (i = 0; i < n; i++) {
944 off = netxen_decode_crb_addr(buf[i].addr);
945 if (off == NETXEN_ADDR_ERROR) {
946 printk(KERN_ERR"CRB init value out of range %x\n",
950 off += NETXEN_PCI_CRBSPACE;
951 /* skipping cold reboot MAGIC */
952 if (off == NETXEN_CAM_RAM(0x1fc))
955 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
956 /* do not reset PCI */
957 if (off == (ROMUSB_GLB + 0xbc))
959 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18))
960 buf[i].data = 0x1020;
961 /* skip the function enable register */
962 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
964 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
966 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
970 if (off == NETXEN_ADDR_ERROR) {
971 printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n",
972 netxen_nic_driver_name, buf[i].addr);
976 /* After writing this register, HW needs time for CRB */
977 /* to quiet down (else crb_window returns 0xffffffff) */
978 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
980 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
981 /* hold xdma in reset also */
982 buf[i].data = NETXEN_NIC_XDMA_RESET;
986 adapter->hw_write_wx(adapter, off, &buf[i].data, 4);
988 if (init_delay == 1) {
996 /* disable_peg_cache_all */
998 /* unreset_net_cache */
999 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1000 adapter->hw_read_wx(adapter,
1001 NETXEN_ROMUSB_GLB_SW_RESET, &val, 4);
1002 netxen_crb_writelit_adapter(adapter,
1003 NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
1006 /* p2dn replyCount */
1007 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
1008 /* disable_peg_cache 0 */
1009 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
1010 /* disable_peg_cache 1 */
1011 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
1016 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
1017 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
1019 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
1020 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
1022 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
1023 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
1025 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
1026 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
1030 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
1036 adapter->dummy_dma.addr =
1037 pci_alloc_consistent(adapter->pdev,
1038 NETXEN_HOST_DUMMY_DMA_SIZE,
1039 &adapter->dummy_dma.phys_addr);
1040 if (adapter->dummy_dma.addr == NULL) {
1041 printk("%s: ERROR: Could not allocate dummy DMA memory\n",
1046 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1047 hi = (addr >> 32) & 0xffffffff;
1048 lo = addr & 0xffffffff;
1050 adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1051 adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1053 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1055 adapter->hw_write_wx(adapter, CRB_HOST_DUMMY_BUF, &temp, 4);
1061 void netxen_free_adapter_offload(struct netxen_adapter *adapter)
1065 if (adapter->dummy_dma.addr) {
1068 if (dma_watchdog_shutdown_request(adapter) == 1)
1071 if (dma_watchdog_shutdown_poll_result(adapter) == 1)
1076 pci_free_consistent(adapter->pdev,
1077 NETXEN_HOST_DUMMY_DMA_SIZE,
1078 adapter->dummy_dma.addr,
1079 adapter->dummy_dma.phys_addr);
1080 adapter->dummy_dma.addr = NULL;
1082 printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
1083 adapter->netdev->name);
1088 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1095 val = adapter->pci_read_normalize(adapter,
1098 if (val == PHAN_INITIALIZE_COMPLETE ||
1099 val == PHAN_INITIALIZE_ACK)
1104 } while (--retries);
1107 pegtune_val = adapter->pci_read_normalize(adapter,
1108 NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
1109 printk(KERN_WARNING "netxen_phantom_init: init failed, "
1110 "pegtune_val=%x\n", pegtune_val);
1118 int netxen_receive_peg_ready(struct netxen_adapter *adapter)
1124 val = adapter->pci_read_normalize(adapter, CRB_RCVPEG_STATE);
1126 if (val == PHAN_PEG_RCV_INITIALIZED)
1131 } while (--retries);
1134 printk(KERN_ERR "Receive Peg initialization not "
1135 "complete, state: 0x%x.\n", val);
1142 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1144 struct net_device *netdev = adapter->netdev;
1145 uint32_t temp, temp_state, temp_val;
1148 temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE);
1150 temp_state = nx_get_temp_state(temp);
1151 temp_val = nx_get_temp_val(temp);
1153 if (temp_state == NX_TEMP_PANIC) {
1155 "%s: Device temperature %d degrees C exceeds"
1156 " maximum allowed. Hardware has been shut down.\n",
1157 netxen_nic_driver_name, temp_val);
1159 netif_carrier_off(netdev);
1160 netif_stop_queue(netdev);
1162 } else if (temp_state == NX_TEMP_WARN) {
1163 if (adapter->temp == NX_TEMP_NORMAL) {
1165 "%s: Device temperature %d degrees C "
1166 "exceeds operating range."
1167 " Immediate action needed.\n",
1168 netxen_nic_driver_name, temp_val);
1171 if (adapter->temp == NX_TEMP_WARN) {
1173 "%s: Device temperature is now %d degrees C"
1174 " in normal range.\n", netxen_nic_driver_name,
1178 adapter->temp = temp_state;
1182 void netxen_watchdog_task(struct work_struct *work)
1184 struct netxen_adapter *adapter =
1185 container_of(work, struct netxen_adapter, watchdog_task);
1187 if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
1190 if (adapter->handle_phy_intr)
1191 adapter->handle_phy_intr(adapter);
1193 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1197 * netxen_process_rcv() send the received packet to the protocol stack.
1198 * and if the number of receives exceeds RX_BUFFERS_REFILL, then we
1199 * invoke the routine to send more rx buffers to the Phantom...
1201 static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
1202 struct status_desc *desc)
1204 struct pci_dev *pdev = adapter->pdev;
1205 struct net_device *netdev = adapter->netdev;
1206 u64 sts_data = le64_to_cpu(desc->status_desc_data);
1207 int index = netxen_get_sts_refhandle(sts_data);
1208 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1209 struct netxen_rx_buffer *buffer;
1210 struct sk_buff *skb;
1211 u32 length = netxen_get_sts_totallength(sts_data);
1213 struct netxen_rcv_desc_ctx *rcv_desc;
1216 desc_ctx = netxen_get_sts_type(sts_data);
1217 if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) {
1218 printk("%s: %s Bad Rcv descriptor ring\n",
1219 netxen_nic_driver_name, netdev->name);
1223 rcv_desc = &recv_ctx->rcv_desc[desc_ctx];
1224 if (unlikely(index > rcv_desc->max_rx_desc_count)) {
1225 DPRINTK(ERR, "Got a buffer index:%x Max is %x\n",
1226 index, rcv_desc->max_rx_desc_count);
1229 buffer = &rcv_desc->rx_buf_arr[index];
1230 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1231 buffer->lro_current_frags++;
1232 if (netxen_get_sts_desc_lro_last_frag(desc)) {
1233 buffer->lro_expected_frags =
1234 netxen_get_sts_desc_lro_cnt(desc);
1235 buffer->lro_length = length;
1237 if (buffer->lro_current_frags != buffer->lro_expected_frags) {
1238 if (buffer->lro_expected_frags != 0) {
1239 printk("LRO: (refhandle:%x) recv frag. "
1240 "wait for last. flags: %x expected:%d "
1242 netxen_get_sts_desc_lro_last_frag(desc),
1243 buffer->lro_expected_frags,
1244 buffer->lro_current_frags);
1250 pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size,
1251 PCI_DMA_FROMDEVICE);
1253 skb = (struct sk_buff *)buffer->skb;
1255 if (likely(adapter->rx_csum &&
1256 netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
1257 adapter->stats.csummed++;
1258 skb->ip_summed = CHECKSUM_UNNECESSARY;
1260 skb->ip_summed = CHECKSUM_NONE;
1263 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1264 /* True length was only available on the last pkt */
1265 skb_put(skb, buffer->lro_length);
1267 skb_put(skb, length);
1270 skb->protocol = eth_type_trans(skb, netdev);
1272 ret = netif_receive_skb(skb);
1273 netdev->last_rx = jiffies;
1276 * We just consumed one buffer so post a buffer.
1279 buffer->state = NETXEN_BUFFER_FREE;
1280 buffer->lro_current_frags = 0;
1281 buffer->lro_expected_frags = 0;
1283 adapter->stats.no_rcv++;
1284 adapter->stats.rxbytes += length;
1287 /* Process Receive status ring */
1288 u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
1290 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1291 struct status_desc *desc_head = recv_ctx->rcv_status_desc_head;
1292 struct status_desc *desc; /* used to read status desc here */
1293 u32 consumer = recv_ctx->status_rx_consumer;
1294 int count = 0, ring;
1296 while (count < max) {
1297 desc = &desc_head[consumer];
1298 if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) {
1299 DPRINTK(ERR, "desc %p ownedby %x\n", desc,
1300 netxen_get_sts_owner(desc));
1303 netxen_process_rcv(adapter, ctxid, desc);
1304 netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM);
1305 consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
1308 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
1309 netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
1311 /* update the consumer index in phantom */
1313 recv_ctx->status_rx_consumer = consumer;
1316 adapter->pci_write_normalize(adapter,
1317 recv_ctx->crb_sts_consumer, consumer);
1323 /* Process Command status ring */
1324 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1326 u32 last_consumer, consumer;
1328 struct netxen_cmd_buffer *buffer;
1329 struct pci_dev *pdev = adapter->pdev;
1330 struct net_device *netdev = adapter->netdev;
1331 struct netxen_skb_frag *frag;
1334 last_consumer = adapter->last_cmd_consumer;
1335 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1337 while (last_consumer != consumer) {
1338 buffer = &adapter->cmd_buf_arr[last_consumer];
1340 frag = &buffer->frag_array[0];
1341 pci_unmap_single(pdev, frag->dma, frag->length,
1344 for (i = 1; i < buffer->frag_count; i++) {
1345 frag++; /* Get the next frag */
1346 pci_unmap_page(pdev, frag->dma, frag->length,
1351 adapter->stats.xmitfinished++;
1352 dev_kfree_skb_any(buffer->skb);
1356 last_consumer = get_next_index(last_consumer,
1357 adapter->max_tx_desc_count);
1358 if (++count >= MAX_STATUS_HANDLE)
1363 adapter->last_cmd_consumer = last_consumer;
1365 if (netif_queue_stopped(netdev) && netif_running(netdev)) {
1366 netif_tx_lock(netdev);
1367 netif_wake_queue(netdev);
1369 netif_tx_unlock(netdev);
1373 * If everything is freed up to consumer then check if the ring is full
1374 * If the ring is full then check if more needs to be freed and
1375 * schedule the call back again.
1377 * This happens when there are 2 CPUs. One could be freeing and the
1378 * other filling it. If the ring is full when we get out of here and
1379 * the card has already interrupted the host then the host can miss the
1382 * There is still a possible race condition and the host could miss an
1383 * interrupt. The card has to take care of this.
1385 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1386 done = (last_consumer == consumer);
1392 * netxen_post_rx_buffers puts buffer in the Phantom memory
1394 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
1396 struct pci_dev *pdev = adapter->pdev;
1397 struct sk_buff *skb;
1398 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1399 struct netxen_rcv_desc_ctx *rcv_desc = NULL;
1401 struct rcv_desc *pdesc;
1402 struct netxen_rx_buffer *buffer;
1405 netxen_ctx_msg msg = 0;
1408 rcv_desc = &recv_ctx->rcv_desc[ringid];
1410 producer = rcv_desc->producer;
1411 index = rcv_desc->begin_alloc;
1412 buffer = &rcv_desc->rx_buf_arr[index];
1413 /* We can start writing rx descriptors into the phantom memory. */
1414 while (buffer->state == NETXEN_BUFFER_FREE) {
1415 skb = dev_alloc_skb(rcv_desc->skb_size);
1416 if (unlikely(!skb)) {
1419 * We need to schedule the posting of buffers to the pegs.
1421 rcv_desc->begin_alloc = index;
1422 DPRINTK(ERR, "netxen_post_rx_buffers: "
1423 " allocated only %d buffers\n", count);
1427 count++; /* now there should be no failure */
1428 pdesc = &rcv_desc->desc_head[producer];
1430 #if defined(XGB_DEBUG)
1431 *(unsigned long *)(skb->head) = 0xc0debabe;
1432 if (skb_is_nonlinear(skb)) {
1433 printk("Allocated SKB @%p is nonlinear\n");
1436 skb_reserve(skb, 2);
1437 /* This will be setup when we receive the
1438 * buffer after it has been filled FSL TBD TBD
1439 * skb->dev = netdev;
1441 dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size,
1442 PCI_DMA_FROMDEVICE);
1443 pdesc->addr_buffer = cpu_to_le64(dma);
1445 buffer->state = NETXEN_BUFFER_BUSY;
1447 /* make a rcv descriptor */
1448 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1449 pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
1450 DPRINTK(INFO, "done writing descripter\n");
1452 get_next_index(producer, rcv_desc->max_rx_desc_count);
1453 index = get_next_index(index, rcv_desc->max_rx_desc_count);
1454 buffer = &rcv_desc->rx_buf_arr[index];
1456 /* if we did allocate buffers, then write the count to Phantom */
1458 rcv_desc->begin_alloc = index;
1459 rcv_desc->producer = producer;
1461 adapter->pci_write_normalize(adapter,
1462 rcv_desc->crb_rcv_producer,
1463 (producer-1) & (rcv_desc->max_rx_desc_count-1));
1465 * Write a doorbell msg to tell phanmon of change in
1466 * receive ring producer
1468 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1469 netxen_set_msg_privid(msg);
1470 netxen_set_msg_count(msg,
1473 max_rx_desc_count - 1)));
1474 netxen_set_msg_ctxid(msg, adapter->portnum);
1475 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1477 DB_NORMALIZE(adapter,
1478 NETXEN_RCV_PRODUCER_OFFSET));
1482 static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1483 uint32_t ctx, uint32_t ringid)
1485 struct pci_dev *pdev = adapter->pdev;
1486 struct sk_buff *skb;
1487 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1488 struct netxen_rcv_desc_ctx *rcv_desc = NULL;
1490 struct rcv_desc *pdesc;
1491 struct netxen_rx_buffer *buffer;
1495 rcv_desc = &recv_ctx->rcv_desc[ringid];
1497 producer = rcv_desc->producer;
1498 index = rcv_desc->begin_alloc;
1499 buffer = &rcv_desc->rx_buf_arr[index];
1500 /* We can start writing rx descriptors into the phantom memory. */
1501 while (buffer->state == NETXEN_BUFFER_FREE) {
1502 skb = dev_alloc_skb(rcv_desc->skb_size);
1503 if (unlikely(!skb)) {
1505 * We need to schedule the posting of buffers to the pegs.
1507 rcv_desc->begin_alloc = index;
1508 DPRINTK(ERR, "netxen_post_rx_buffers_nodb: "
1509 " allocated only %d buffers\n", count);
1512 count++; /* now there should be no failure */
1513 pdesc = &rcv_desc->desc_head[producer];
1514 skb_reserve(skb, 2);
1516 * This will be setup when we receive the
1517 * buffer after it has been filled
1518 * skb->dev = netdev;
1521 buffer->state = NETXEN_BUFFER_BUSY;
1522 buffer->dma = pci_map_single(pdev, skb->data,
1524 PCI_DMA_FROMDEVICE);
1526 /* make a rcv descriptor */
1527 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1528 pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
1529 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1531 get_next_index(producer, rcv_desc->max_rx_desc_count);
1532 index = get_next_index(index, rcv_desc->max_rx_desc_count);
1533 buffer = &rcv_desc->rx_buf_arr[index];
1536 /* if we did allocate buffers, then write the count to Phantom */
1538 rcv_desc->begin_alloc = index;
1539 rcv_desc->producer = producer;
1541 adapter->pci_write_normalize(adapter,
1542 rcv_desc->crb_rcv_producer,
1543 (producer-1) & (rcv_desc->max_rx_desc_count-1));
1548 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1550 memset(&adapter->stats, 0, sizeof(adapter->stats));