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 unsigned long last_schedule_time;
47 #define NETXEN_MAX_CRB_XFORM 60
48 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
49 #define NETXEN_ADDR_ERROR (0xffffffff)
51 #define crb_addr_transform(name) \
52 crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
53 NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
55 #define NETXEN_NIC_XDMA_RESET 0x8000ff
57 static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
58 uint32_t ctx, uint32_t ringid);
61 static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter,
62 unsigned long off, int *data)
64 void __iomem *addr = pci_base_offset(adapter, off);
69 static void crb_addr_transform_setup(void)
71 crb_addr_transform(XDMA);
72 crb_addr_transform(TIMR);
73 crb_addr_transform(SRE);
74 crb_addr_transform(SQN3);
75 crb_addr_transform(SQN2);
76 crb_addr_transform(SQN1);
77 crb_addr_transform(SQN0);
78 crb_addr_transform(SQS3);
79 crb_addr_transform(SQS2);
80 crb_addr_transform(SQS1);
81 crb_addr_transform(SQS0);
82 crb_addr_transform(RPMX7);
83 crb_addr_transform(RPMX6);
84 crb_addr_transform(RPMX5);
85 crb_addr_transform(RPMX4);
86 crb_addr_transform(RPMX3);
87 crb_addr_transform(RPMX2);
88 crb_addr_transform(RPMX1);
89 crb_addr_transform(RPMX0);
90 crb_addr_transform(ROMUSB);
91 crb_addr_transform(SN);
92 crb_addr_transform(QMN);
93 crb_addr_transform(QMS);
94 crb_addr_transform(PGNI);
95 crb_addr_transform(PGND);
96 crb_addr_transform(PGN3);
97 crb_addr_transform(PGN2);
98 crb_addr_transform(PGN1);
99 crb_addr_transform(PGN0);
100 crb_addr_transform(PGSI);
101 crb_addr_transform(PGSD);
102 crb_addr_transform(PGS3);
103 crb_addr_transform(PGS2);
104 crb_addr_transform(PGS1);
105 crb_addr_transform(PGS0);
106 crb_addr_transform(PS);
107 crb_addr_transform(PH);
108 crb_addr_transform(NIU);
109 crb_addr_transform(I2Q);
110 crb_addr_transform(EG);
111 crb_addr_transform(MN);
112 crb_addr_transform(MS);
113 crb_addr_transform(CAS2);
114 crb_addr_transform(CAS1);
115 crb_addr_transform(CAS0);
116 crb_addr_transform(CAM);
117 crb_addr_transform(C2C1);
118 crb_addr_transform(C2C0);
119 crb_addr_transform(SMB);
122 int netxen_init_firmware(struct netxen_adapter *adapter)
124 u32 state = 0, loops = 0, err = 0;
127 state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
129 if (state == PHAN_INITIALIZE_ACK)
132 while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) {
135 state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
140 printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n",
146 writel(INTR_SCHEME_PERPORT,
147 NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST));
148 writel(MPORT_MULTI_FUNCTION_MODE,
149 NETXEN_CRB_NORMALIZE(adapter, CRB_MPORT_MODE));
150 writel(PHAN_INITIALIZE_ACK,
151 NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
156 #define NETXEN_ADDR_LIMIT 0xffffffffULL
158 void *netxen_alloc(struct pci_dev *pdev, size_t sz, dma_addr_t * ptr,
159 struct pci_dev **used_dev)
163 addr = pci_alloc_consistent(pdev, sz, ptr);
164 if ((unsigned long long)(*ptr) < NETXEN_ADDR_LIMIT) {
168 pci_free_consistent(pdev, sz, addr, *ptr);
169 addr = pci_alloc_consistent(NULL, sz, ptr);
174 void netxen_initialize_adapter_sw(struct netxen_adapter *adapter)
179 struct netxen_rcv_desc_ctx *rcv_desc;
181 DPRINTK(INFO, "initializing some queues: %p\n", adapter);
182 for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
183 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
184 struct netxen_rx_buffer *rx_buf;
185 rcv_desc = &adapter->recv_ctx[ctxid].rcv_desc[ring];
186 rcv_desc->rcv_free = rcv_desc->max_rx_desc_count;
187 rcv_desc->begin_alloc = 0;
188 rx_buf = rcv_desc->rx_buf_arr;
189 num_rx_bufs = rcv_desc->max_rx_desc_count;
191 * Now go through all of them, set reference handles
192 * and put them in the queues.
194 for (i = 0; i < num_rx_bufs; i++) {
195 rx_buf->ref_handle = i;
196 rx_buf->state = NETXEN_BUFFER_FREE;
197 DPRINTK(INFO, "Rx buf:ctx%d i(%d) rx_buf:"
198 "%p\n", ctxid, i, rx_buf);
205 void netxen_initialize_adapter_hw(struct netxen_adapter *adapter)
208 struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
210 if (netxen_nic_get_board_info(adapter) != 0)
211 printk("%s: Error getting board config info.\n",
212 netxen_nic_driver_name);
213 get_brd_port_by_type(board_info->board_type, &ports);
215 printk(KERN_ERR "%s: Unknown board type\n",
216 netxen_nic_driver_name);
217 adapter->ahw.max_ports = ports;
220 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter)
222 switch (adapter->ahw.board_type) {
224 adapter->enable_phy_interrupts =
225 netxen_niu_gbe_enable_phy_interrupts;
226 adapter->disable_phy_interrupts =
227 netxen_niu_gbe_disable_phy_interrupts;
228 adapter->handle_phy_intr = netxen_nic_gbe_handle_phy_intr;
229 adapter->macaddr_set = netxen_niu_macaddr_set;
230 adapter->set_mtu = netxen_nic_set_mtu_gb;
231 adapter->set_promisc = netxen_niu_set_promiscuous_mode;
232 adapter->unset_promisc = netxen_niu_set_promiscuous_mode;
233 adapter->phy_read = netxen_niu_gbe_phy_read;
234 adapter->phy_write = netxen_niu_gbe_phy_write;
235 adapter->init_niu = netxen_nic_init_niu_gb;
236 adapter->stop_port = netxen_niu_disable_gbe_port;
239 case NETXEN_NIC_XGBE:
240 adapter->enable_phy_interrupts =
241 netxen_niu_xgbe_enable_phy_interrupts;
242 adapter->disable_phy_interrupts =
243 netxen_niu_xgbe_disable_phy_interrupts;
244 adapter->handle_phy_intr = netxen_nic_xgbe_handle_phy_intr;
245 adapter->macaddr_set = netxen_niu_xg_macaddr_set;
246 adapter->set_mtu = netxen_nic_set_mtu_xgb;
247 adapter->init_port = netxen_niu_xg_init_port;
248 adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode;
249 adapter->unset_promisc = netxen_niu_xg_set_promiscuous_mode;
250 adapter->stop_port = netxen_niu_disable_xg_port;
259 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
260 * address to external PCI CRB address.
262 static u32 netxen_decode_crb_addr(u32 addr)
265 u32 base_addr, offset, pci_base;
267 crb_addr_transform_setup();
269 pci_base = NETXEN_ADDR_ERROR;
270 base_addr = addr & 0xfff00000;
271 offset = addr & 0x000fffff;
273 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
274 if (crb_addr_xform[i] == base_addr) {
279 if (pci_base == NETXEN_ADDR_ERROR)
282 return (pci_base + offset);
285 static long rom_max_timeout = 100;
286 static long rom_lock_timeout = 10000;
287 static long rom_write_timeout = 700;
289 static int rom_lock(struct netxen_adapter *adapter)
296 /* acquire semaphore2 from PCI HW block */
297 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK),
301 if (timeout >= rom_lock_timeout)
311 for (iter = 0; iter < 20; iter++)
312 cpu_relax(); /*This a nop instr on i386 */
315 netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER);
319 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
325 done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS);
328 if (timeout >= rom_max_timeout) {
329 printk("Timeout reached waiting for rom done");
336 static int netxen_rom_wren(struct netxen_adapter *adapter)
338 /* Set write enable latch in ROM status register */
339 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
340 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
342 if (netxen_wait_rom_done(adapter)) {
348 static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter,
351 unsigned int data = 0xdeaddead;
352 data = netxen_nic_reg_read(adapter, addr);
356 static int netxen_do_rom_rdsr(struct netxen_adapter *adapter)
358 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
360 if (netxen_wait_rom_done(adapter)) {
363 return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA);
366 static void netxen_rom_unlock(struct netxen_adapter *adapter)
370 /* release semaphore2 */
371 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val);
375 static int netxen_rom_wip_poll(struct netxen_adapter *adapter)
380 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
382 val = netxen_do_rom_rdsr(adapter);
385 if (timeout > rom_max_timeout) {
392 static int do_rom_fast_write(struct netxen_adapter *adapter, int addr,
395 if (netxen_rom_wren(adapter)) {
398 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
399 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
400 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
401 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
403 if (netxen_wait_rom_done(adapter)) {
404 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
408 return netxen_rom_wip_poll(adapter);
411 static int do_rom_fast_read(struct netxen_adapter *adapter,
416 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
417 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
418 udelay(100); /* prevent bursting on CRB */
419 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
420 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
421 if (netxen_wait_rom_done(adapter)) {
422 printk("Error waiting for rom done\n");
425 /* reset abyte_cnt and dummy_byte_cnt */
426 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
427 udelay(100); /* prevent bursting on CRB */
428 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
430 *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);
434 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
435 u8 *bytes, size_t size)
440 for (addridx = addr; addridx < (addr + size); addridx += 4) {
442 ret = do_rom_fast_read(adapter, addridx, &v);
445 *(__le32 *)bytes = cpu_to_le32(v);
453 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
454 u8 *bytes, size_t size)
458 ret = rom_lock(adapter);
462 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
464 netxen_rom_unlock(adapter);
468 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
472 if (rom_lock(adapter) != 0)
475 ret = do_rom_fast_read(adapter, addr, valp);
476 netxen_rom_unlock(adapter);
481 int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data)
485 if (rom_lock(adapter) != 0) {
488 ret = do_rom_fast_write(adapter, addr, data);
489 netxen_rom_unlock(adapter);
494 static int do_rom_fast_write_words(struct netxen_adapter *adapter,
495 int addr, u8 *bytes, size_t size)
500 while (addridx < (addr + size)) {
501 int last_attempt = 0;
505 data = le32_to_cpu((*(__le32*)bytes));
506 ret = do_rom_fast_write(adapter, addridx, data);
513 ret = do_rom_fast_read(adapter, addridx, &data1);
520 if (timeout++ >= rom_write_timeout) {
521 if (last_attempt++ < 4) {
522 ret = do_rom_fast_write(adapter,
528 printk(KERN_INFO "Data write did not "
529 "succeed at address 0x%x\n", addridx);
542 int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr,
543 u8 *bytes, size_t size)
547 ret = rom_lock(adapter);
551 ret = do_rom_fast_write_words(adapter, addr, bytes, size);
552 netxen_rom_unlock(adapter);
557 static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data)
561 ret = netxen_rom_wren(adapter);
565 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
566 netxen_crb_writelit_adapter(adapter,
567 NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1);
569 ret = netxen_wait_rom_done(adapter);
573 return netxen_rom_wip_poll(adapter);
576 static int netxen_rom_rdsr(struct netxen_adapter *adapter)
580 ret = rom_lock(adapter);
584 ret = netxen_do_rom_rdsr(adapter);
585 netxen_rom_unlock(adapter);
589 int netxen_backup_crbinit(struct netxen_adapter *adapter)
591 int ret = FLASH_SUCCESS;
593 char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL);
597 /* unlock sector 63 */
598 val = netxen_rom_rdsr(adapter);
600 ret = netxen_rom_wrsr(adapter, val);
601 if (ret != FLASH_SUCCESS)
604 ret = netxen_rom_wip_poll(adapter);
605 if (ret != FLASH_SUCCESS)
608 /* copy sector 0 to sector 63 */
609 ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START,
610 buffer, NETXEN_FLASH_SECTOR_SIZE);
611 if (ret != FLASH_SUCCESS)
614 ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START,
615 buffer, NETXEN_FLASH_SECTOR_SIZE);
616 if (ret != FLASH_SUCCESS)
620 val = netxen_rom_rdsr(adapter);
624 if (netxen_rom_wrsr(adapter, val) == 0) {
625 ret = netxen_rom_wip_poll(adapter);
626 if (ret != FLASH_SUCCESS)
630 ret = netxen_rom_wip_poll(adapter);
631 if (ret != FLASH_SUCCESS)
641 static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
643 netxen_rom_wren(adapter);
644 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
645 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
646 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
648 if (netxen_wait_rom_done(adapter)) {
649 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
652 return netxen_rom_wip_poll(adapter);
655 static void check_erased_flash(struct netxen_adapter *adapter, int addr)
659 int count = 0, erased_errors = 0;
662 range = (addr == NETXEN_USER_START) ?
663 NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE;
665 for (i = addr; i < range; i += 4) {
666 netxen_rom_fast_read(adapter, i, &val);
667 if (val != 0xffffffff)
673 printk(KERN_INFO "0x%x out of 0x%x words fail to be erased "
674 "for sector address: %x\n", erased_errors, count, addr);
677 int netxen_rom_se(struct netxen_adapter *adapter, int addr)
680 if (rom_lock(adapter) != 0) {
683 ret = netxen_do_rom_se(adapter, addr);
684 netxen_rom_unlock(adapter);
686 check_erased_flash(adapter, addr);
691 static int netxen_flash_erase_sections(struct netxen_adapter *adapter,
694 int ret = FLASH_SUCCESS;
697 for (i = start; i < end; i++) {
698 ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE);
701 ret = netxen_rom_wip_poll(adapter);
710 netxen_flash_erase_secondary(struct netxen_adapter *adapter)
712 int ret = FLASH_SUCCESS;
715 start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
716 end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE;
717 ret = netxen_flash_erase_sections(adapter, start, end);
723 netxen_flash_erase_primary(struct netxen_adapter *adapter)
725 int ret = FLASH_SUCCESS;
728 start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE;
729 end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
730 ret = netxen_flash_erase_sections(adapter, start, end);
735 void netxen_halt_pegs(struct netxen_adapter *adapter)
737 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1);
738 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1);
739 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1);
740 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1);
743 int netxen_flash_unlock(struct netxen_adapter *adapter)
747 ret = netxen_rom_wrsr(adapter, 0);
751 ret = netxen_rom_wren(adapter);
758 #define NETXEN_BOARDTYPE 0x4008
759 #define NETXEN_BOARDNUM 0x400c
760 #define NETXEN_CHIPNUM 0x4010
761 #define NETXEN_ROMBUS_RESET 0xFFFFFFFF
762 #define NETXEN_ROM_FIRST_BARRIER 0x800000000ULL
763 #define NETXEN_ROM_FOUND_INIT 0x400
765 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
767 int addr, val, status;
770 struct crb_addr_pair *buf;
774 status = netxen_nic_get_board_info(adapter);
776 printk("%s: netxen_pinit_from_rom: Error getting board info\n",
777 netxen_nic_driver_name);
779 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
780 NETXEN_ROMBUS_RESET);
784 if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
785 printk("P2 ROM board type: 0x%08x\n", val);
787 printk("Could not read board type\n");
788 if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
789 printk("P2 ROM board num: 0x%08x\n", val);
791 printk("Could not read board number\n");
792 if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
793 printk("P2 ROM chip num: 0x%08x\n", val);
795 printk("Could not read chip number\n");
798 if (netxen_rom_fast_read(adapter, 0, &n) == 0
799 && (n & NETXEN_ROM_FIRST_BARRIER)) {
800 n &= ~NETXEN_ROM_ROUNDUP;
801 if (n < NETXEN_ROM_FOUND_INIT) {
803 printk("%s: %d CRB init values found"
804 " in ROM.\n", netxen_nic_driver_name, n);
806 printk("%s:n=0x%x Error! NetXen card flash not"
807 " initialized.\n", __FUNCTION__, n);
810 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
812 printk("%s: netxen_pinit_from_rom: Unable to calloc "
813 "memory.\n", netxen_nic_driver_name);
816 for (i = 0; i < n; i++) {
817 if (netxen_rom_fast_read(adapter, 8 * i + 4, &val) != 0
818 || netxen_rom_fast_read(adapter, 8 * i + 8,
826 printk("%s: PCI: 0x%08x == 0x%08x\n",
827 netxen_nic_driver_name, (unsigned int)
828 netxen_decode_crb_addr(addr), val);
830 for (i = 0; i < n; i++) {
832 off = netxen_decode_crb_addr(buf[i].addr);
833 if (off == NETXEN_ADDR_ERROR) {
834 printk(KERN_ERR"CRB init value out of range %x\n",
838 off += NETXEN_PCI_CRBSPACE;
839 /* skipping cold reboot MAGIC */
840 if (off == NETXEN_CAM_RAM(0x1fc))
843 /* After writing this register, HW needs time for CRB */
844 /* to quiet down (else crb_window returns 0xffffffff) */
845 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
847 /* hold xdma in reset also */
848 buf[i].data = NETXEN_NIC_XDMA_RESET;
851 if (ADDR_IN_WINDOW1(off)) {
853 NETXEN_CRB_NORMALIZE(adapter, off));
855 netxen_nic_pci_change_crbwindow(adapter, 0);
857 pci_base_offset(adapter, off));
859 netxen_nic_pci_change_crbwindow(adapter, 1);
861 if (init_delay == 1) {
869 /* disable_peg_cache_all */
871 /* unreset_net_cache */
872 netxen_nic_hw_read_wx(adapter, NETXEN_ROMUSB_GLB_SW_RESET, &val,
874 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
876 /* p2dn replyCount */
877 netxen_crb_writelit_adapter(adapter,
878 NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
879 /* disable_peg_cache 0 */
880 netxen_crb_writelit_adapter(adapter,
881 NETXEN_CRB_PEG_NET_D + 0x4c, 8);
882 /* disable_peg_cache 1 */
883 netxen_crb_writelit_adapter(adapter,
884 NETXEN_CRB_PEG_NET_I + 0x4c, 8);
889 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8,
891 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc,
894 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8,
896 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc,
899 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8,
901 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc,
904 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8,
906 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc,
912 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
918 adapter->dummy_dma.addr =
919 pci_alloc_consistent(adapter->ahw.pdev,
920 NETXEN_HOST_DUMMY_DMA_SIZE,
921 &adapter->dummy_dma.phys_addr);
922 if (adapter->dummy_dma.addr == NULL) {
923 printk("%s: 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 writel(hi, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI));
933 writel(lo, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO));
938 void netxen_free_adapter_offload(struct netxen_adapter *adapter)
940 if (adapter->dummy_dma.addr) {
941 pci_free_consistent(adapter->ahw.pdev,
942 NETXEN_HOST_DUMMY_DMA_SIZE,
943 adapter->dummy_dma.addr,
944 adapter->dummy_dma.phys_addr);
945 adapter->dummy_dma.addr = NULL;
949 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
956 val = readl(NETXEN_CRB_NORMALIZE
957 (adapter, CRB_CMDPEG_STATE));
958 pegtune_val = readl(NETXEN_CRB_NORMALIZE
959 (adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE));
961 if (val == PHAN_INITIALIZE_COMPLETE ||
962 val == PHAN_INITIALIZE_ACK)
968 printk(KERN_WARNING "netxen_phantom_init: init failed, "
969 "pegtune_val=%x\n", pegtune_val);
977 int netxen_nic_rx_has_work(struct netxen_adapter *adapter)
981 for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
982 struct netxen_recv_context *recv_ctx =
983 &(adapter->recv_ctx[ctx]);
985 struct status_desc *desc_head;
986 struct status_desc *desc;
988 consumer = recv_ctx->status_rx_consumer;
989 desc_head = recv_ctx->rcv_status_desc_head;
990 desc = &desc_head[consumer];
992 if (netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)
999 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1001 struct net_device *netdev = adapter->netdev;
1002 uint32_t temp, temp_state, temp_val;
1005 temp = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_TEMP_STATE));
1007 temp_state = nx_get_temp_state(temp);
1008 temp_val = nx_get_temp_val(temp);
1010 if (temp_state == NX_TEMP_PANIC) {
1012 "%s: Device temperature %d degrees C exceeds"
1013 " maximum allowed. Hardware has been shut down.\n",
1014 netxen_nic_driver_name, temp_val);
1016 netif_carrier_off(netdev);
1017 netif_stop_queue(netdev);
1019 } else if (temp_state == NX_TEMP_WARN) {
1020 if (adapter->temp == NX_TEMP_NORMAL) {
1022 "%s: Device temperature %d degrees C "
1023 "exceeds operating range."
1024 " Immediate action needed.\n",
1025 netxen_nic_driver_name, temp_val);
1028 if (adapter->temp == NX_TEMP_WARN) {
1030 "%s: Device temperature is now %d degrees C"
1031 " in normal range.\n", netxen_nic_driver_name,
1035 adapter->temp = temp_state;
1039 void netxen_watchdog_task(struct work_struct *work)
1041 struct net_device *netdev;
1042 struct netxen_adapter *adapter =
1043 container_of(work, struct netxen_adapter, watchdog_task);
1045 if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
1048 if (adapter->handle_phy_intr)
1049 adapter->handle_phy_intr(adapter);
1051 netdev = adapter->netdev;
1052 if ((netif_running(netdev)) && !netif_carrier_ok(netdev) &&
1053 netxen_nic_link_ok(adapter) ) {
1054 printk(KERN_INFO "%s %s (port %d), Link is up\n",
1055 netxen_nic_driver_name, netdev->name, adapter->portnum);
1056 netif_carrier_on(netdev);
1057 netif_wake_queue(netdev);
1058 } else if(!(netif_running(netdev)) && netif_carrier_ok(netdev)) {
1059 printk(KERN_ERR "%s %s Link is Down\n",
1060 netxen_nic_driver_name, netdev->name);
1061 netif_carrier_off(netdev);
1062 netif_stop_queue(netdev);
1065 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1069 * netxen_process_rcv() send the received packet to the protocol stack.
1070 * and if the number of receives exceeds RX_BUFFERS_REFILL, then we
1071 * invoke the routine to send more rx buffers to the Phantom...
1073 static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
1074 struct status_desc *desc)
1076 struct pci_dev *pdev = adapter->pdev;
1077 struct net_device *netdev = adapter->netdev;
1078 u64 sts_data = le64_to_cpu(desc->status_desc_data);
1079 int index = netxen_get_sts_refhandle(sts_data);
1080 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1081 struct netxen_rx_buffer *buffer;
1082 struct sk_buff *skb;
1083 u32 length = netxen_get_sts_totallength(sts_data);
1085 struct netxen_rcv_desc_ctx *rcv_desc;
1088 desc_ctx = netxen_get_sts_type(sts_data);
1089 if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) {
1090 printk("%s: %s Bad Rcv descriptor ring\n",
1091 netxen_nic_driver_name, netdev->name);
1095 rcv_desc = &recv_ctx->rcv_desc[desc_ctx];
1096 if (unlikely(index > rcv_desc->max_rx_desc_count)) {
1097 DPRINTK(ERR, "Got a buffer index:%x Max is %x\n",
1098 index, rcv_desc->max_rx_desc_count);
1101 buffer = &rcv_desc->rx_buf_arr[index];
1102 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1103 buffer->lro_current_frags++;
1104 if (netxen_get_sts_desc_lro_last_frag(desc)) {
1105 buffer->lro_expected_frags =
1106 netxen_get_sts_desc_lro_cnt(desc);
1107 buffer->lro_length = length;
1109 if (buffer->lro_current_frags != buffer->lro_expected_frags) {
1110 if (buffer->lro_expected_frags != 0) {
1111 printk("LRO: (refhandle:%x) recv frag. "
1112 "wait for last. flags: %x expected:%d "
1114 netxen_get_sts_desc_lro_last_frag(desc),
1115 buffer->lro_expected_frags,
1116 buffer->lro_current_frags);
1122 pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size,
1123 PCI_DMA_FROMDEVICE);
1125 skb = (struct sk_buff *)buffer->skb;
1127 if (likely(adapter->rx_csum &&
1128 netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
1129 adapter->stats.csummed++;
1130 skb->ip_summed = CHECKSUM_UNNECESSARY;
1132 skb->ip_summed = CHECKSUM_NONE;
1135 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1136 /* True length was only available on the last pkt */
1137 skb_put(skb, buffer->lro_length);
1139 skb_put(skb, length);
1142 skb->protocol = eth_type_trans(skb, netdev);
1144 ret = netif_receive_skb(skb);
1147 * RH: Do we need these stats on a regular basis. Can we get it from
1151 case NET_RX_SUCCESS:
1152 adapter->stats.uphappy++;
1156 adapter->stats.uplcong++;
1160 adapter->stats.upmcong++;
1163 case NET_RX_CN_HIGH:
1164 adapter->stats.uphcong++;
1168 adapter->stats.updropped++;
1172 adapter->stats.updunno++;
1176 netdev->last_rx = jiffies;
1178 rcv_desc->rcv_free++;
1179 rcv_desc->rcv_pending--;
1182 * We just consumed one buffer so post a buffer.
1185 buffer->state = NETXEN_BUFFER_FREE;
1186 buffer->lro_current_frags = 0;
1187 buffer->lro_expected_frags = 0;
1189 adapter->stats.no_rcv++;
1190 adapter->stats.rxbytes += length;
1193 /* Process Receive status ring */
1194 u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
1196 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1197 struct status_desc *desc_head = recv_ctx->rcv_status_desc_head;
1198 struct status_desc *desc; /* used to read status desc here */
1199 u32 consumer = recv_ctx->status_rx_consumer;
1201 int count = 0, ring;
1203 DPRINTK(INFO, "procesing receive\n");
1205 * we assume in this case that there is only one port and that is
1206 * port #1...changes need to be done in firmware to indicate port
1207 * number as part of the descriptor. This way we will be able to get
1208 * the netdev which is associated with that device.
1210 while (count < max) {
1211 desc = &desc_head[consumer];
1212 if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) {
1213 DPRINTK(ERR, "desc %p ownedby %x\n", desc,
1214 netxen_get_sts_owner(desc));
1217 netxen_process_rcv(adapter, ctxid, desc);
1218 netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM);
1219 consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
1223 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
1224 netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
1228 /* update the consumer index in phantom */
1230 recv_ctx->status_rx_consumer = consumer;
1231 recv_ctx->status_rx_producer = producer;
1235 NETXEN_CRB_NORMALIZE(adapter,
1236 recv_crb_registers[adapter->portnum].
1237 crb_rcv_status_consumer));
1244 /* Process Command status ring */
1245 int netxen_process_cmd_ring(unsigned long data)
1249 struct netxen_adapter *adapter = (struct netxen_adapter *)data;
1252 struct netxen_cmd_buffer *buffer;
1253 struct pci_dev *pdev;
1254 struct netxen_skb_frag *frag;
1258 spin_lock(&adapter->tx_lock);
1259 last_consumer = adapter->last_cmd_consumer;
1260 DPRINTK(INFO, "procesing xmit complete\n");
1261 /* we assume in this case that there is only one port and that is
1262 * port #1...changes need to be done in firmware to indicate port
1263 * number as part of the descriptor. This way we will be able to get
1264 * the netdev which is associated with that device.
1267 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1268 if (last_consumer == consumer) { /* Ring is empty */
1269 DPRINTK(INFO, "last_consumer %d == consumer %d\n",
1270 last_consumer, consumer);
1271 spin_unlock(&adapter->tx_lock);
1275 adapter->proc_cmd_buf_counter++;
1277 * Not needed - does not seem to be used anywhere.
1278 * adapter->cmd_consumer = consumer;
1280 spin_unlock(&adapter->tx_lock);
1282 while ((last_consumer != consumer) && (count1 < MAX_STATUS_HANDLE)) {
1283 buffer = &adapter->cmd_buf_arr[last_consumer];
1284 pdev = adapter->pdev;
1286 frag = &buffer->frag_array[0];
1287 pci_unmap_single(pdev, frag->dma, frag->length,
1290 for (i = 1; i < buffer->frag_count; i++) {
1291 DPRINTK(INFO, "getting fragment no %d\n", i);
1292 frag++; /* Get the next frag */
1293 pci_unmap_page(pdev, frag->dma, frag->length,
1298 adapter->stats.skbfreed++;
1299 dev_kfree_skb_any(buffer->skb);
1301 } else if (adapter->proc_cmd_buf_counter == 1) {
1302 adapter->stats.txnullskb++;
1304 if (unlikely(netif_queue_stopped(adapter->netdev)
1305 && netif_carrier_ok(adapter->netdev))
1306 && ((jiffies - adapter->netdev->trans_start) >
1307 adapter->netdev->watchdog_timeo)) {
1308 SCHEDULE_WORK(&adapter->tx_timeout_task);
1311 last_consumer = get_next_index(last_consumer,
1312 adapter->max_tx_desc_count);
1317 spin_lock(&adapter->tx_lock);
1318 if ((--adapter->proc_cmd_buf_counter) == 0) {
1319 adapter->last_cmd_consumer = last_consumer;
1320 while ((adapter->last_cmd_consumer != consumer)
1321 && (count2 < MAX_STATUS_HANDLE)) {
1323 &adapter->cmd_buf_arr[adapter->last_cmd_consumer];
1328 adapter->last_cmd_consumer =
1329 get_next_index(adapter->last_cmd_consumer,
1330 adapter->max_tx_desc_count);
1333 if (count1 || count2) {
1334 if (netif_queue_stopped(adapter->netdev)
1335 && (adapter->flags & NETXEN_NETDEV_STATUS)) {
1336 netif_wake_queue(adapter->netdev);
1337 adapter->flags &= ~NETXEN_NETDEV_STATUS;
1341 * If everything is freed up to consumer then check if the ring is full
1342 * If the ring is full then check if more needs to be freed and
1343 * schedule the call back again.
1345 * This happens when there are 2 CPUs. One could be freeing and the
1346 * other filling it. If the ring is full when we get out of here and
1347 * the card has already interrupted the host then the host can miss the
1350 * There is still a possible race condition and the host could miss an
1351 * interrupt. The card has to take care of this.
1353 if (adapter->last_cmd_consumer == consumer &&
1354 (((adapter->cmd_producer + 1) %
1355 adapter->max_tx_desc_count) == adapter->last_cmd_consumer)) {
1356 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1358 done = (adapter->last_cmd_consumer == consumer);
1360 spin_unlock(&adapter->tx_lock);
1361 DPRINTK(INFO, "last consumer is %d in %s\n", last_consumer,
1367 * netxen_post_rx_buffers puts buffer in the Phantom memory
1369 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
1371 struct pci_dev *pdev = adapter->ahw.pdev;
1372 struct sk_buff *skb;
1373 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1374 struct netxen_rcv_desc_ctx *rcv_desc = NULL;
1376 struct rcv_desc *pdesc;
1377 struct netxen_rx_buffer *buffer;
1380 netxen_ctx_msg msg = 0;
1383 rcv_desc = &recv_ctx->rcv_desc[ringid];
1385 producer = rcv_desc->producer;
1386 index = rcv_desc->begin_alloc;
1387 buffer = &rcv_desc->rx_buf_arr[index];
1388 /* We can start writing rx descriptors into the phantom memory. */
1389 while (buffer->state == NETXEN_BUFFER_FREE) {
1390 skb = dev_alloc_skb(rcv_desc->skb_size);
1391 if (unlikely(!skb)) {
1394 * We need to schedule the posting of buffers to the pegs.
1396 rcv_desc->begin_alloc = index;
1397 DPRINTK(ERR, "netxen_post_rx_buffers: "
1398 " allocated only %d buffers\n", count);
1402 count++; /* now there should be no failure */
1403 pdesc = &rcv_desc->desc_head[producer];
1405 #if defined(XGB_DEBUG)
1406 *(unsigned long *)(skb->head) = 0xc0debabe;
1407 if (skb_is_nonlinear(skb)) {
1408 printk("Allocated SKB @%p is nonlinear\n");
1411 skb_reserve(skb, 2);
1412 /* This will be setup when we receive the
1413 * buffer after it has been filled FSL TBD TBD
1414 * skb->dev = netdev;
1416 dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size,
1417 PCI_DMA_FROMDEVICE);
1418 pdesc->addr_buffer = cpu_to_le64(dma);
1420 buffer->state = NETXEN_BUFFER_BUSY;
1422 /* make a rcv descriptor */
1423 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1424 pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
1425 DPRINTK(INFO, "done writing descripter\n");
1427 get_next_index(producer, rcv_desc->max_rx_desc_count);
1428 index = get_next_index(index, rcv_desc->max_rx_desc_count);
1429 buffer = &rcv_desc->rx_buf_arr[index];
1431 /* if we did allocate buffers, then write the count to Phantom */
1433 rcv_desc->begin_alloc = index;
1434 rcv_desc->rcv_pending += count;
1435 rcv_desc->producer = producer;
1436 if (rcv_desc->rcv_free >= 32) {
1437 rcv_desc->rcv_free = 0;
1439 writel((producer - 1) &
1440 (rcv_desc->max_rx_desc_count - 1),
1441 NETXEN_CRB_NORMALIZE(adapter,
1444 rcv_desc_crb[ringid].
1445 crb_rcv_producer_offset));
1447 * Write a doorbell msg to tell phanmon of change in
1448 * receive ring producer
1450 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1451 netxen_set_msg_privid(msg);
1452 netxen_set_msg_count(msg,
1455 max_rx_desc_count - 1)));
1456 netxen_set_msg_ctxid(msg, adapter->portnum);
1457 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1459 DB_NORMALIZE(adapter,
1460 NETXEN_RCV_PRODUCER_OFFSET));
1466 static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1467 uint32_t ctx, uint32_t ringid)
1469 struct pci_dev *pdev = adapter->ahw.pdev;
1470 struct sk_buff *skb;
1471 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1472 struct netxen_rcv_desc_ctx *rcv_desc = NULL;
1474 struct rcv_desc *pdesc;
1475 struct netxen_rx_buffer *buffer;
1479 rcv_desc = &recv_ctx->rcv_desc[ringid];
1481 producer = rcv_desc->producer;
1482 index = rcv_desc->begin_alloc;
1483 buffer = &rcv_desc->rx_buf_arr[index];
1484 /* We can start writing rx descriptors into the phantom memory. */
1485 while (buffer->state == NETXEN_BUFFER_FREE) {
1486 skb = dev_alloc_skb(rcv_desc->skb_size);
1487 if (unlikely(!skb)) {
1489 * We need to schedule the posting of buffers to the pegs.
1491 rcv_desc->begin_alloc = index;
1492 DPRINTK(ERR, "netxen_post_rx_buffers_nodb: "
1493 " allocated only %d buffers\n", count);
1496 count++; /* now there should be no failure */
1497 pdesc = &rcv_desc->desc_head[producer];
1498 skb_reserve(skb, 2);
1500 * This will be setup when we receive the
1501 * buffer after it has been filled
1502 * skb->dev = netdev;
1505 buffer->state = NETXEN_BUFFER_BUSY;
1506 buffer->dma = pci_map_single(pdev, skb->data,
1508 PCI_DMA_FROMDEVICE);
1510 /* make a rcv descriptor */
1511 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1512 pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
1513 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1514 DPRINTK(INFO, "done writing descripter\n");
1516 get_next_index(producer, rcv_desc->max_rx_desc_count);
1517 index = get_next_index(index, rcv_desc->max_rx_desc_count);
1518 buffer = &rcv_desc->rx_buf_arr[index];
1521 /* if we did allocate buffers, then write the count to Phantom */
1523 rcv_desc->begin_alloc = index;
1524 rcv_desc->rcv_pending += count;
1525 rcv_desc->producer = producer;
1526 if (rcv_desc->rcv_free >= 32) {
1527 rcv_desc->rcv_free = 0;
1529 writel((producer - 1) &
1530 (rcv_desc->max_rx_desc_count - 1),
1531 NETXEN_CRB_NORMALIZE(adapter,
1534 rcv_desc_crb[ringid].
1535 crb_rcv_producer_offset));
1541 int netxen_nic_tx_has_work(struct netxen_adapter *adapter)
1543 if (find_diff_among(adapter->last_cmd_consumer,
1544 adapter->cmd_producer,
1545 adapter->max_tx_desc_count) > 0)
1552 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1554 memset(&adapter->stats, 0, sizeof(adapter->stats));