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 nx_host_rds_ring *rds_ring;
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 < adapter->max_rds_rings; ring++) {
168 rds_ring = &recv_ctx->rds_rings[ring];
169 for (i = 0; i < rds_ring->max_rx_desc_count; ++i) {
170 rx_buf = &(rds_ring->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 nx_host_rds_ring *rds_ring;
222 for (ctx = 0; ctx < MAX_RCV_CTX; ctx++) {
223 recv_ctx = &adapter->recv_ctx[ctx];
224 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
225 rds_ring = &recv_ctx->rds_rings[ring];
226 if (rds_ring->rx_buf_arr) {
227 vfree(rds_ring->rx_buf_arr);
228 rds_ring->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 nx_host_rds_ring *rds_ring;
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 < adapter->max_rds_rings; ring++) {
259 rds_ring = &recv_ctx->rds_rings[ring];
260 switch (RCV_DESC_TYPE(ring)) {
261 case RCV_DESC_NORMAL:
262 rds_ring->max_rx_desc_count =
263 adapter->max_rx_desc_count;
264 rds_ring->flags = RCV_DESC_NORMAL;
265 rds_ring->dma_size = RX_DMA_MAP_LEN;
266 rds_ring->skb_size = MAX_RX_BUFFER_LENGTH;
270 rds_ring->max_rx_desc_count =
271 adapter->max_jumbo_rx_desc_count;
272 rds_ring->flags = RCV_DESC_JUMBO;
273 rds_ring->dma_size = RX_JUMBO_DMA_MAP_LEN;
275 MAX_RX_JUMBO_BUFFER_LENGTH;
279 rds_ring->max_rx_desc_count =
280 adapter->max_lro_rx_desc_count;
281 rds_ring->flags = RCV_DESC_LRO;
282 rds_ring->dma_size = RX_LRO_DMA_MAP_LEN;
283 rds_ring->skb_size = MAX_RX_LRO_BUFFER_LENGTH;
287 rds_ring->rx_buf_arr = (struct netxen_rx_buffer *)
288 vmalloc(RCV_BUFFSIZE);
289 if (rds_ring->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(rds_ring->rx_buf_arr, 0, RCV_BUFFSIZE);
297 rds_ring->begin_alloc = 0;
299 * Now go through all of them, set reference handles
300 * and put them in the queues.
302 num_rx_bufs = rds_ring->max_rx_desc_count;
303 rx_buf = rds_ring->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->macaddr_set = netxen_niu_macaddr_set;
328 adapter->set_mtu = netxen_nic_set_mtu_gb;
329 adapter->set_promisc = netxen_niu_set_promiscuous_mode;
330 adapter->phy_read = netxen_niu_gbe_phy_read;
331 adapter->phy_write = netxen_niu_gbe_phy_write;
332 adapter->init_niu = netxen_nic_init_niu_gb;
333 adapter->stop_port = netxen_niu_disable_gbe_port;
336 case NETXEN_NIC_XGBE:
337 adapter->enable_phy_interrupts =
338 netxen_niu_xgbe_enable_phy_interrupts;
339 adapter->disable_phy_interrupts =
340 netxen_niu_xgbe_disable_phy_interrupts;
341 adapter->macaddr_set = netxen_niu_xg_macaddr_set;
342 adapter->set_mtu = netxen_nic_set_mtu_xgb;
343 adapter->init_port = netxen_niu_xg_init_port;
344 adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode;
345 adapter->stop_port = netxen_niu_disable_xg_port;
354 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
355 * address to external PCI CRB address.
357 static u32 netxen_decode_crb_addr(u32 addr)
360 u32 base_addr, offset, pci_base;
362 crb_addr_transform_setup();
364 pci_base = NETXEN_ADDR_ERROR;
365 base_addr = addr & 0xfff00000;
366 offset = addr & 0x000fffff;
368 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
369 if (crb_addr_xform[i] == base_addr) {
374 if (pci_base == NETXEN_ADDR_ERROR)
377 return (pci_base + offset);
380 static long rom_max_timeout = 100;
381 static long rom_lock_timeout = 10000;
383 static long rom_write_timeout = 700;
386 static int rom_lock(struct netxen_adapter *adapter)
393 /* acquire semaphore2 from PCI HW block */
394 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK),
398 if (timeout >= rom_lock_timeout)
408 for (iter = 0; iter < 20; iter++)
409 cpu_relax(); /*This a nop instr on i386 */
412 netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER);
416 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
422 done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS);
425 if (timeout >= rom_max_timeout) {
426 printk("Timeout reached waiting for rom done");
434 static int netxen_rom_wren(struct netxen_adapter *adapter)
436 /* Set write enable latch in ROM status register */
437 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
438 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
440 if (netxen_wait_rom_done(adapter)) {
446 static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter,
449 unsigned int data = 0xdeaddead;
450 data = netxen_nic_reg_read(adapter, addr);
454 static int netxen_do_rom_rdsr(struct netxen_adapter *adapter)
456 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
458 if (netxen_wait_rom_done(adapter)) {
461 return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA);
465 static void netxen_rom_unlock(struct netxen_adapter *adapter)
469 /* release semaphore2 */
470 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val);
475 static int netxen_rom_wip_poll(struct netxen_adapter *adapter)
480 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
482 val = netxen_do_rom_rdsr(adapter);
485 if (timeout > rom_max_timeout) {
492 static int do_rom_fast_write(struct netxen_adapter *adapter, int addr,
495 if (netxen_rom_wren(adapter)) {
498 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
499 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
500 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
501 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
503 if (netxen_wait_rom_done(adapter)) {
504 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
508 return netxen_rom_wip_poll(adapter);
512 static int do_rom_fast_read(struct netxen_adapter *adapter,
517 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
518 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
519 udelay(100); /* prevent bursting on CRB */
520 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
521 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
522 if (netxen_wait_rom_done(adapter)) {
523 printk("Error waiting for rom done\n");
526 /* reset abyte_cnt and dummy_byte_cnt */
527 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
528 udelay(100); /* prevent bursting on CRB */
529 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
531 *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);
535 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
536 u8 *bytes, size_t size)
541 for (addridx = addr; addridx < (addr + size); addridx += 4) {
543 ret = do_rom_fast_read(adapter, addridx, &v);
546 *(__le32 *)bytes = cpu_to_le32(v);
554 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
555 u8 *bytes, size_t size)
559 ret = rom_lock(adapter);
563 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
565 netxen_rom_unlock(adapter);
569 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
573 if (rom_lock(adapter) != 0)
576 ret = do_rom_fast_read(adapter, addr, valp);
577 netxen_rom_unlock(adapter);
582 int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data)
586 if (rom_lock(adapter) != 0) {
589 ret = do_rom_fast_write(adapter, addr, data);
590 netxen_rom_unlock(adapter);
594 static int do_rom_fast_write_words(struct netxen_adapter *adapter,
595 int addr, u8 *bytes, size_t size)
600 while (addridx < (addr + size)) {
601 int last_attempt = 0;
605 data = le32_to_cpu((*(__le32*)bytes));
606 ret = do_rom_fast_write(adapter, addridx, data);
613 ret = do_rom_fast_read(adapter, addridx, &data1);
620 if (timeout++ >= rom_write_timeout) {
621 if (last_attempt++ < 4) {
622 ret = do_rom_fast_write(adapter,
628 printk(KERN_INFO "Data write did not "
629 "succeed at address 0x%x\n", addridx);
642 int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr,
643 u8 *bytes, size_t size)
647 ret = rom_lock(adapter);
651 ret = do_rom_fast_write_words(adapter, addr, bytes, size);
652 netxen_rom_unlock(adapter);
657 static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data)
661 ret = netxen_rom_wren(adapter);
665 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
666 netxen_crb_writelit_adapter(adapter,
667 NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1);
669 ret = netxen_wait_rom_done(adapter);
673 return netxen_rom_wip_poll(adapter);
676 static int netxen_rom_rdsr(struct netxen_adapter *adapter)
680 ret = rom_lock(adapter);
684 ret = netxen_do_rom_rdsr(adapter);
685 netxen_rom_unlock(adapter);
689 int netxen_backup_crbinit(struct netxen_adapter *adapter)
691 int ret = FLASH_SUCCESS;
693 char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL);
697 /* unlock sector 63 */
698 val = netxen_rom_rdsr(adapter);
700 ret = netxen_rom_wrsr(adapter, val);
701 if (ret != FLASH_SUCCESS)
704 ret = netxen_rom_wip_poll(adapter);
705 if (ret != FLASH_SUCCESS)
708 /* copy sector 0 to sector 63 */
709 ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START,
710 buffer, NETXEN_FLASH_SECTOR_SIZE);
711 if (ret != FLASH_SUCCESS)
714 ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START,
715 buffer, NETXEN_FLASH_SECTOR_SIZE);
716 if (ret != FLASH_SUCCESS)
720 val = netxen_rom_rdsr(adapter);
724 if (netxen_rom_wrsr(adapter, val) == 0) {
725 ret = netxen_rom_wip_poll(adapter);
726 if (ret != FLASH_SUCCESS)
730 ret = netxen_rom_wip_poll(adapter);
731 if (ret != FLASH_SUCCESS)
741 static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
743 netxen_rom_wren(adapter);
744 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
745 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
746 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
748 if (netxen_wait_rom_done(adapter)) {
749 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
752 return netxen_rom_wip_poll(adapter);
755 static void check_erased_flash(struct netxen_adapter *adapter, int addr)
759 int count = 0, erased_errors = 0;
762 range = (addr == NETXEN_USER_START) ?
763 NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE;
765 for (i = addr; i < range; i += 4) {
766 netxen_rom_fast_read(adapter, i, &val);
767 if (val != 0xffffffff)
773 printk(KERN_INFO "0x%x out of 0x%x words fail to be erased "
774 "for sector address: %x\n", erased_errors, count, addr);
777 int netxen_rom_se(struct netxen_adapter *adapter, int addr)
780 if (rom_lock(adapter) != 0) {
783 ret = netxen_do_rom_se(adapter, addr);
784 netxen_rom_unlock(adapter);
786 check_erased_flash(adapter, addr);
791 static int netxen_flash_erase_sections(struct netxen_adapter *adapter,
794 int ret = FLASH_SUCCESS;
797 for (i = start; i < end; i++) {
798 ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE);
801 ret = netxen_rom_wip_poll(adapter);
810 netxen_flash_erase_secondary(struct netxen_adapter *adapter)
812 int ret = FLASH_SUCCESS;
815 start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
816 end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE;
817 ret = netxen_flash_erase_sections(adapter, start, end);
823 netxen_flash_erase_primary(struct netxen_adapter *adapter)
825 int ret = FLASH_SUCCESS;
828 start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE;
829 end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
830 ret = netxen_flash_erase_sections(adapter, start, end);
835 void netxen_halt_pegs(struct netxen_adapter *adapter)
837 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1);
838 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1);
839 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1);
840 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1);
843 int netxen_flash_unlock(struct netxen_adapter *adapter)
847 ret = netxen_rom_wrsr(adapter, 0);
851 ret = netxen_rom_wren(adapter);
859 #define NETXEN_BOARDTYPE 0x4008
860 #define NETXEN_BOARDNUM 0x400c
861 #define NETXEN_CHIPNUM 0x4010
863 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
866 int i, init_delay = 0;
867 struct crb_addr_pair *buf;
872 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
876 if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
877 printk("P2 ROM board type: 0x%08x\n", val);
879 printk("Could not read board type\n");
880 if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
881 printk("P2 ROM board num: 0x%08x\n", val);
883 printk("Could not read board number\n");
884 if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
885 printk("P2 ROM chip num: 0x%08x\n", val);
887 printk("Could not read chip number\n");
890 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
891 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
892 (n != 0xcafecafeUL) ||
893 netxen_rom_fast_read(adapter, 4, &n) != 0) {
894 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
895 "n: %08x\n", netxen_nic_driver_name, n);
898 offset = n & 0xffffU;
899 n = (n >> 16) & 0xffffU;
901 if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
903 printk(KERN_ERR "%s: ERROR Reading crb_init area: "
904 "n: %08x\n", netxen_nic_driver_name, n);
913 printk(KERN_DEBUG "%s: %d CRB init values found"
914 " in ROM.\n", netxen_nic_driver_name, n);
916 printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
917 " initialized.\n", __func__, n);
921 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
923 printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n",
924 netxen_nic_driver_name);
927 for (i = 0; i < n; i++) {
928 if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
929 netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0)
936 printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n",
937 netxen_nic_driver_name,
938 (u32)netxen_decode_crb_addr(addr), val);
940 for (i = 0; i < n; i++) {
942 off = netxen_decode_crb_addr(buf[i].addr);
943 if (off == NETXEN_ADDR_ERROR) {
944 printk(KERN_ERR"CRB init value out of range %x\n",
948 off += NETXEN_PCI_CRBSPACE;
949 /* skipping cold reboot MAGIC */
950 if (off == NETXEN_CAM_RAM(0x1fc))
953 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
954 /* do not reset PCI */
955 if (off == (ROMUSB_GLB + 0xbc))
957 if (off == (NETXEN_CRB_PEG_NET_1 + 0x18))
958 buf[i].data = 0x1020;
959 /* skip the function enable register */
960 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
962 if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
964 if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
968 if (off == NETXEN_ADDR_ERROR) {
969 printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n",
970 netxen_nic_driver_name, buf[i].addr);
974 /* After writing this register, HW needs time for CRB */
975 /* to quiet down (else crb_window returns 0xffffffff) */
976 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
978 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
979 /* hold xdma in reset also */
980 buf[i].data = NETXEN_NIC_XDMA_RESET;
984 adapter->hw_write_wx(adapter, off, &buf[i].data, 4);
986 if (init_delay == 1) {
994 /* disable_peg_cache_all */
996 /* unreset_net_cache */
997 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
998 adapter->hw_read_wx(adapter,
999 NETXEN_ROMUSB_GLB_SW_RESET, &val, 4);
1000 netxen_crb_writelit_adapter(adapter,
1001 NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
1004 /* p2dn replyCount */
1005 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
1006 /* disable_peg_cache 0 */
1007 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
1008 /* disable_peg_cache 1 */
1009 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
1014 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
1015 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
1017 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
1018 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
1020 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
1021 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
1023 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
1024 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
1028 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
1034 adapter->dummy_dma.addr =
1035 pci_alloc_consistent(adapter->pdev,
1036 NETXEN_HOST_DUMMY_DMA_SIZE,
1037 &adapter->dummy_dma.phys_addr);
1038 if (adapter->dummy_dma.addr == NULL) {
1039 printk("%s: ERROR: Could not allocate dummy DMA memory\n",
1044 addr = (uint64_t) adapter->dummy_dma.phys_addr;
1045 hi = (addr >> 32) & 0xffffffff;
1046 lo = addr & 0xffffffff;
1048 adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
1049 adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
1051 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1053 adapter->hw_write_wx(adapter, CRB_HOST_DUMMY_BUF, &temp, 4);
1059 void netxen_free_adapter_offload(struct netxen_adapter *adapter)
1063 if (adapter->dummy_dma.addr) {
1066 if (dma_watchdog_shutdown_request(adapter) == 1)
1069 if (dma_watchdog_shutdown_poll_result(adapter) == 1)
1074 pci_free_consistent(adapter->pdev,
1075 NETXEN_HOST_DUMMY_DMA_SIZE,
1076 adapter->dummy_dma.addr,
1077 adapter->dummy_dma.phys_addr);
1078 adapter->dummy_dma.addr = NULL;
1080 printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
1081 adapter->netdev->name);
1086 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
1093 val = adapter->pci_read_normalize(adapter,
1096 if (val == PHAN_INITIALIZE_COMPLETE ||
1097 val == PHAN_INITIALIZE_ACK)
1102 } while (--retries);
1105 pegtune_val = adapter->pci_read_normalize(adapter,
1106 NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
1107 printk(KERN_WARNING "netxen_phantom_init: init failed, "
1108 "pegtune_val=%x\n", pegtune_val);
1116 int netxen_receive_peg_ready(struct netxen_adapter *adapter)
1122 val = adapter->pci_read_normalize(adapter, CRB_RCVPEG_STATE);
1124 if (val == PHAN_PEG_RCV_INITIALIZED)
1129 } while (--retries);
1132 printk(KERN_ERR "Receive Peg initialization not "
1133 "complete, state: 0x%x.\n", val);
1141 * netxen_process_rcv() send the received packet to the protocol stack.
1142 * and if the number of receives exceeds RX_BUFFERS_REFILL, then we
1143 * invoke the routine to send more rx buffers to the Phantom...
1145 static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
1146 struct status_desc *desc)
1148 struct pci_dev *pdev = adapter->pdev;
1149 struct net_device *netdev = adapter->netdev;
1150 u64 sts_data = le64_to_cpu(desc->status_desc_data);
1151 int index = netxen_get_sts_refhandle(sts_data);
1152 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1153 struct netxen_rx_buffer *buffer;
1154 struct sk_buff *skb;
1155 u32 length = netxen_get_sts_totallength(sts_data);
1157 struct nx_host_rds_ring *rds_ring;
1160 desc_ctx = netxen_get_sts_type(sts_data);
1161 if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) {
1162 printk("%s: %s Bad Rcv descriptor ring\n",
1163 netxen_nic_driver_name, netdev->name);
1167 rds_ring = &recv_ctx->rds_rings[desc_ctx];
1168 if (unlikely(index > rds_ring->max_rx_desc_count)) {
1169 DPRINTK(ERR, "Got a buffer index:%x Max is %x\n",
1170 index, rds_ring->max_rx_desc_count);
1173 buffer = &rds_ring->rx_buf_arr[index];
1174 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1175 buffer->lro_current_frags++;
1176 if (netxen_get_sts_desc_lro_last_frag(desc)) {
1177 buffer->lro_expected_frags =
1178 netxen_get_sts_desc_lro_cnt(desc);
1179 buffer->lro_length = length;
1181 if (buffer->lro_current_frags != buffer->lro_expected_frags) {
1182 if (buffer->lro_expected_frags != 0) {
1183 printk("LRO: (refhandle:%x) recv frag. "
1184 "wait for last. flags: %x expected:%d "
1186 netxen_get_sts_desc_lro_last_frag(desc),
1187 buffer->lro_expected_frags,
1188 buffer->lro_current_frags);
1194 pci_unmap_single(pdev, buffer->dma, rds_ring->dma_size,
1195 PCI_DMA_FROMDEVICE);
1197 skb = (struct sk_buff *)buffer->skb;
1199 if (likely(adapter->rx_csum &&
1200 netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
1201 adapter->stats.csummed++;
1202 skb->ip_summed = CHECKSUM_UNNECESSARY;
1204 skb->ip_summed = CHECKSUM_NONE;
1207 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1208 /* True length was only available on the last pkt */
1209 skb_put(skb, buffer->lro_length);
1211 skb_put(skb, length);
1214 skb->protocol = eth_type_trans(skb, netdev);
1216 ret = netif_receive_skb(skb);
1217 netdev->last_rx = jiffies;
1220 * We just consumed one buffer so post a buffer.
1223 buffer->state = NETXEN_BUFFER_FREE;
1224 buffer->lro_current_frags = 0;
1225 buffer->lro_expected_frags = 0;
1227 adapter->stats.no_rcv++;
1228 adapter->stats.rxbytes += length;
1231 /* Process Receive status ring */
1232 u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
1234 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1235 struct status_desc *desc_head = recv_ctx->rcv_status_desc_head;
1236 struct status_desc *desc; /* used to read status desc here */
1237 u32 consumer = recv_ctx->status_rx_consumer;
1238 int count = 0, ring;
1240 while (count < max) {
1241 desc = &desc_head[consumer];
1242 if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) {
1243 DPRINTK(ERR, "desc %p ownedby %x\n", desc,
1244 netxen_get_sts_owner(desc));
1247 netxen_process_rcv(adapter, ctxid, desc);
1248 netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM);
1249 consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
1252 for (ring = 0; ring < adapter->max_rds_rings; ring++)
1253 netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
1255 /* update the consumer index in phantom */
1257 recv_ctx->status_rx_consumer = consumer;
1260 adapter->pci_write_normalize(adapter,
1261 recv_ctx->crb_sts_consumer, consumer);
1267 /* Process Command status ring */
1268 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1270 u32 last_consumer, consumer;
1272 struct netxen_cmd_buffer *buffer;
1273 struct pci_dev *pdev = adapter->pdev;
1274 struct net_device *netdev = adapter->netdev;
1275 struct netxen_skb_frag *frag;
1278 last_consumer = adapter->last_cmd_consumer;
1279 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1281 while (last_consumer != consumer) {
1282 buffer = &adapter->cmd_buf_arr[last_consumer];
1284 frag = &buffer->frag_array[0];
1285 pci_unmap_single(pdev, frag->dma, frag->length,
1288 for (i = 1; i < buffer->frag_count; i++) {
1289 frag++; /* Get the next frag */
1290 pci_unmap_page(pdev, frag->dma, frag->length,
1295 adapter->stats.xmitfinished++;
1296 dev_kfree_skb_any(buffer->skb);
1300 last_consumer = get_next_index(last_consumer,
1301 adapter->max_tx_desc_count);
1302 if (++count >= MAX_STATUS_HANDLE)
1307 adapter->last_cmd_consumer = last_consumer;
1309 if (netif_queue_stopped(netdev) && netif_running(netdev)) {
1310 netif_tx_lock(netdev);
1311 netif_wake_queue(netdev);
1313 netif_tx_unlock(netdev);
1317 * If everything is freed up to consumer then check if the ring is full
1318 * If the ring is full then check if more needs to be freed and
1319 * schedule the call back again.
1321 * This happens when there are 2 CPUs. One could be freeing and the
1322 * other filling it. If the ring is full when we get out of here and
1323 * the card has already interrupted the host then the host can miss the
1326 * There is still a possible race condition and the host could miss an
1327 * interrupt. The card has to take care of this.
1329 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1330 done = (last_consumer == consumer);
1336 * netxen_post_rx_buffers puts buffer in the Phantom memory
1338 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
1340 struct pci_dev *pdev = adapter->pdev;
1341 struct sk_buff *skb;
1342 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1343 struct nx_host_rds_ring *rds_ring = NULL;
1345 struct rcv_desc *pdesc;
1346 struct netxen_rx_buffer *buffer;
1349 netxen_ctx_msg msg = 0;
1352 rds_ring = &recv_ctx->rds_rings[ringid];
1354 producer = rds_ring->producer;
1355 index = rds_ring->begin_alloc;
1356 buffer = &rds_ring->rx_buf_arr[index];
1357 /* We can start writing rx descriptors into the phantom memory. */
1358 while (buffer->state == NETXEN_BUFFER_FREE) {
1359 skb = dev_alloc_skb(rds_ring->skb_size);
1360 if (unlikely(!skb)) {
1363 * We need to schedule the posting of buffers to the pegs.
1365 rds_ring->begin_alloc = index;
1366 DPRINTK(ERR, "netxen_post_rx_buffers: "
1367 " allocated only %d buffers\n", count);
1371 count++; /* now there should be no failure */
1372 pdesc = &rds_ring->desc_head[producer];
1374 #if defined(XGB_DEBUG)
1375 *(unsigned long *)(skb->head) = 0xc0debabe;
1376 if (skb_is_nonlinear(skb)) {
1377 printk("Allocated SKB @%p is nonlinear\n");
1380 skb_reserve(skb, 2);
1381 /* This will be setup when we receive the
1382 * buffer after it has been filled FSL TBD TBD
1383 * skb->dev = netdev;
1385 dma = pci_map_single(pdev, skb->data, rds_ring->dma_size,
1386 PCI_DMA_FROMDEVICE);
1387 pdesc->addr_buffer = cpu_to_le64(dma);
1389 buffer->state = NETXEN_BUFFER_BUSY;
1391 /* make a rcv descriptor */
1392 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1393 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1394 DPRINTK(INFO, "done writing descripter\n");
1396 get_next_index(producer, rds_ring->max_rx_desc_count);
1397 index = get_next_index(index, rds_ring->max_rx_desc_count);
1398 buffer = &rds_ring->rx_buf_arr[index];
1400 /* if we did allocate buffers, then write the count to Phantom */
1402 rds_ring->begin_alloc = index;
1403 rds_ring->producer = producer;
1405 adapter->pci_write_normalize(adapter,
1406 rds_ring->crb_rcv_producer,
1407 (producer-1) & (rds_ring->max_rx_desc_count-1));
1409 if (adapter->fw_major < 4) {
1411 * Write a doorbell msg to tell phanmon of change in
1412 * receive ring producer
1413 * Only for firmware version < 4.0.0
1415 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1416 netxen_set_msg_privid(msg);
1417 netxen_set_msg_count(msg,
1420 max_rx_desc_count - 1)));
1421 netxen_set_msg_ctxid(msg, adapter->portnum);
1422 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1424 DB_NORMALIZE(adapter,
1425 NETXEN_RCV_PRODUCER_OFFSET));
1430 static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1431 uint32_t ctx, uint32_t ringid)
1433 struct pci_dev *pdev = adapter->pdev;
1434 struct sk_buff *skb;
1435 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1436 struct nx_host_rds_ring *rds_ring = NULL;
1438 struct rcv_desc *pdesc;
1439 struct netxen_rx_buffer *buffer;
1443 rds_ring = &recv_ctx->rds_rings[ringid];
1445 producer = rds_ring->producer;
1446 index = rds_ring->begin_alloc;
1447 buffer = &rds_ring->rx_buf_arr[index];
1448 /* We can start writing rx descriptors into the phantom memory. */
1449 while (buffer->state == NETXEN_BUFFER_FREE) {
1450 skb = dev_alloc_skb(rds_ring->skb_size);
1451 if (unlikely(!skb)) {
1453 * We need to schedule the posting of buffers to the pegs.
1455 rds_ring->begin_alloc = index;
1456 DPRINTK(ERR, "netxen_post_rx_buffers_nodb: "
1457 " allocated only %d buffers\n", count);
1460 count++; /* now there should be no failure */
1461 pdesc = &rds_ring->desc_head[producer];
1462 skb_reserve(skb, 2);
1464 * This will be setup when we receive the
1465 * buffer after it has been filled
1466 * skb->dev = netdev;
1469 buffer->state = NETXEN_BUFFER_BUSY;
1470 buffer->dma = pci_map_single(pdev, skb->data,
1472 PCI_DMA_FROMDEVICE);
1474 /* make a rcv descriptor */
1475 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1476 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1477 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1479 get_next_index(producer, rds_ring->max_rx_desc_count);
1480 index = get_next_index(index, rds_ring->max_rx_desc_count);
1481 buffer = &rds_ring->rx_buf_arr[index];
1484 /* if we did allocate buffers, then write the count to Phantom */
1486 rds_ring->begin_alloc = index;
1487 rds_ring->producer = producer;
1489 adapter->pci_write_normalize(adapter,
1490 rds_ring->crb_rcv_producer,
1491 (producer-1) & (rds_ring->max_rx_desc_count-1));
1496 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1498 memset(&adapter->stats, 0, sizeof(adapter->stats));