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);
120 int netxen_init_firmware(struct netxen_adapter *adapter)
122 u32 state = 0, loops = 0, err = 0;
125 state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
127 if (state == PHAN_INITIALIZE_ACK)
130 while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) {
133 state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
138 printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n",
144 writel(INTR_SCHEME_PERPORT,
145 NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST));
146 writel(MSI_MODE_MULTIFUNC,
147 NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_MSI_MODE_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 void netxen_initialize_adapter_sw(struct netxen_adapter *adapter)
161 struct netxen_rcv_desc_ctx *rcv_desc;
163 DPRINTK(INFO, "initializing some queues: %p\n", adapter);
164 for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
165 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
166 struct netxen_rx_buffer *rx_buf;
167 rcv_desc = &adapter->recv_ctx[ctxid].rcv_desc[ring];
168 rcv_desc->begin_alloc = 0;
169 rx_buf = rcv_desc->rx_buf_arr;
170 num_rx_bufs = rcv_desc->max_rx_desc_count;
172 * Now go through all of them, set reference handles
173 * and put them in the queues.
175 for (i = 0; i < num_rx_bufs; i++) {
176 rx_buf->ref_handle = i;
177 rx_buf->state = NETXEN_BUFFER_FREE;
178 DPRINTK(INFO, "Rx buf:ctx%d i(%d) rx_buf:"
179 "%p\n", ctxid, i, rx_buf);
186 void netxen_initialize_adapter_ops(struct netxen_adapter *adapter)
188 switch (adapter->ahw.board_type) {
190 adapter->enable_phy_interrupts =
191 netxen_niu_gbe_enable_phy_interrupts;
192 adapter->disable_phy_interrupts =
193 netxen_niu_gbe_disable_phy_interrupts;
194 adapter->handle_phy_intr = netxen_nic_gbe_handle_phy_intr;
195 adapter->macaddr_set = netxen_niu_macaddr_set;
196 adapter->set_mtu = netxen_nic_set_mtu_gb;
197 adapter->set_promisc = netxen_niu_set_promiscuous_mode;
198 adapter->phy_read = netxen_niu_gbe_phy_read;
199 adapter->phy_write = netxen_niu_gbe_phy_write;
200 adapter->init_niu = netxen_nic_init_niu_gb;
201 adapter->stop_port = netxen_niu_disable_gbe_port;
204 case NETXEN_NIC_XGBE:
205 adapter->enable_phy_interrupts =
206 netxen_niu_xgbe_enable_phy_interrupts;
207 adapter->disable_phy_interrupts =
208 netxen_niu_xgbe_disable_phy_interrupts;
209 adapter->handle_phy_intr = netxen_nic_xgbe_handle_phy_intr;
210 adapter->macaddr_set = netxen_niu_xg_macaddr_set;
211 adapter->set_mtu = netxen_nic_set_mtu_xgb;
212 adapter->init_port = netxen_niu_xg_init_port;
213 adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode;
214 adapter->stop_port = netxen_niu_disable_xg_port;
223 * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
224 * address to external PCI CRB address.
226 static u32 netxen_decode_crb_addr(u32 addr)
229 u32 base_addr, offset, pci_base;
231 crb_addr_transform_setup();
233 pci_base = NETXEN_ADDR_ERROR;
234 base_addr = addr & 0xfff00000;
235 offset = addr & 0x000fffff;
237 for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
238 if (crb_addr_xform[i] == base_addr) {
243 if (pci_base == NETXEN_ADDR_ERROR)
246 return (pci_base + offset);
249 static long rom_max_timeout = 100;
250 static long rom_lock_timeout = 10000;
252 static long rom_write_timeout = 700;
255 static int rom_lock(struct netxen_adapter *adapter)
262 /* acquire semaphore2 from PCI HW block */
263 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK),
267 if (timeout >= rom_lock_timeout)
277 for (iter = 0; iter < 20; iter++)
278 cpu_relax(); /*This a nop instr on i386 */
281 netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER);
285 static int netxen_wait_rom_done(struct netxen_adapter *adapter)
291 done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS);
294 if (timeout >= rom_max_timeout) {
295 printk("Timeout reached waiting for rom done");
303 static int netxen_rom_wren(struct netxen_adapter *adapter)
305 /* Set write enable latch in ROM status register */
306 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
307 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
309 if (netxen_wait_rom_done(adapter)) {
315 static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter,
318 unsigned int data = 0xdeaddead;
319 data = netxen_nic_reg_read(adapter, addr);
323 static int netxen_do_rom_rdsr(struct netxen_adapter *adapter)
325 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
327 if (netxen_wait_rom_done(adapter)) {
330 return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA);
334 static void netxen_rom_unlock(struct netxen_adapter *adapter)
338 /* release semaphore2 */
339 netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val);
344 static int netxen_rom_wip_poll(struct netxen_adapter *adapter)
349 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
351 val = netxen_do_rom_rdsr(adapter);
354 if (timeout > rom_max_timeout) {
361 static int do_rom_fast_write(struct netxen_adapter *adapter, int addr,
364 if (netxen_rom_wren(adapter)) {
367 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
368 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
369 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
370 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
372 if (netxen_wait_rom_done(adapter)) {
373 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
377 return netxen_rom_wip_poll(adapter);
381 static int do_rom_fast_read(struct netxen_adapter *adapter,
386 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
387 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
388 udelay(100); /* prevent bursting on CRB */
389 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
390 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
391 if (netxen_wait_rom_done(adapter)) {
392 printk("Error waiting for rom done\n");
395 /* reset abyte_cnt and dummy_byte_cnt */
396 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
397 udelay(100); /* prevent bursting on CRB */
398 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
400 *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA);
404 static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
405 u8 *bytes, size_t size)
410 for (addridx = addr; addridx < (addr + size); addridx += 4) {
412 ret = do_rom_fast_read(adapter, addridx, &v);
415 *(__le32 *)bytes = cpu_to_le32(v);
423 netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
424 u8 *bytes, size_t size)
428 ret = rom_lock(adapter);
432 ret = do_rom_fast_read_words(adapter, addr, bytes, size);
434 netxen_rom_unlock(adapter);
438 int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
442 if (rom_lock(adapter) != 0)
445 ret = do_rom_fast_read(adapter, addr, valp);
446 netxen_rom_unlock(adapter);
451 int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data)
455 if (rom_lock(adapter) != 0) {
458 ret = do_rom_fast_write(adapter, addr, data);
459 netxen_rom_unlock(adapter);
463 static int do_rom_fast_write_words(struct netxen_adapter *adapter,
464 int addr, u8 *bytes, size_t size)
469 while (addridx < (addr + size)) {
470 int last_attempt = 0;
474 data = le32_to_cpu((*(__le32*)bytes));
475 ret = do_rom_fast_write(adapter, addridx, data);
482 ret = do_rom_fast_read(adapter, addridx, &data1);
489 if (timeout++ >= rom_write_timeout) {
490 if (last_attempt++ < 4) {
491 ret = do_rom_fast_write(adapter,
497 printk(KERN_INFO "Data write did not "
498 "succeed at address 0x%x\n", addridx);
511 int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr,
512 u8 *bytes, size_t size)
516 ret = rom_lock(adapter);
520 ret = do_rom_fast_write_words(adapter, addr, bytes, size);
521 netxen_rom_unlock(adapter);
526 static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data)
530 ret = netxen_rom_wren(adapter);
534 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data);
535 netxen_crb_writelit_adapter(adapter,
536 NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1);
538 ret = netxen_wait_rom_done(adapter);
542 return netxen_rom_wip_poll(adapter);
545 static int netxen_rom_rdsr(struct netxen_adapter *adapter)
549 ret = rom_lock(adapter);
553 ret = netxen_do_rom_rdsr(adapter);
554 netxen_rom_unlock(adapter);
558 int netxen_backup_crbinit(struct netxen_adapter *adapter)
560 int ret = FLASH_SUCCESS;
562 char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL);
566 /* unlock sector 63 */
567 val = netxen_rom_rdsr(adapter);
569 ret = netxen_rom_wrsr(adapter, val);
570 if (ret != FLASH_SUCCESS)
573 ret = netxen_rom_wip_poll(adapter);
574 if (ret != FLASH_SUCCESS)
577 /* copy sector 0 to sector 63 */
578 ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START,
579 buffer, NETXEN_FLASH_SECTOR_SIZE);
580 if (ret != FLASH_SUCCESS)
583 ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START,
584 buffer, NETXEN_FLASH_SECTOR_SIZE);
585 if (ret != FLASH_SUCCESS)
589 val = netxen_rom_rdsr(adapter);
593 if (netxen_rom_wrsr(adapter, val) == 0) {
594 ret = netxen_rom_wip_poll(adapter);
595 if (ret != FLASH_SUCCESS)
599 ret = netxen_rom_wip_poll(adapter);
600 if (ret != FLASH_SUCCESS)
610 static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr)
612 netxen_rom_wren(adapter);
613 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
614 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
615 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE,
617 if (netxen_wait_rom_done(adapter)) {
618 netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
621 return netxen_rom_wip_poll(adapter);
624 static void check_erased_flash(struct netxen_adapter *adapter, int addr)
628 int count = 0, erased_errors = 0;
631 range = (addr == NETXEN_USER_START) ?
632 NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE;
634 for (i = addr; i < range; i += 4) {
635 netxen_rom_fast_read(adapter, i, &val);
636 if (val != 0xffffffff)
642 printk(KERN_INFO "0x%x out of 0x%x words fail to be erased "
643 "for sector address: %x\n", erased_errors, count, addr);
646 int netxen_rom_se(struct netxen_adapter *adapter, int addr)
649 if (rom_lock(adapter) != 0) {
652 ret = netxen_do_rom_se(adapter, addr);
653 netxen_rom_unlock(adapter);
655 check_erased_flash(adapter, addr);
660 static int netxen_flash_erase_sections(struct netxen_adapter *adapter,
663 int ret = FLASH_SUCCESS;
666 for (i = start; i < end; i++) {
667 ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE);
670 ret = netxen_rom_wip_poll(adapter);
679 netxen_flash_erase_secondary(struct netxen_adapter *adapter)
681 int ret = FLASH_SUCCESS;
684 start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
685 end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE;
686 ret = netxen_flash_erase_sections(adapter, start, end);
692 netxen_flash_erase_primary(struct netxen_adapter *adapter)
694 int ret = FLASH_SUCCESS;
697 start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE;
698 end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE;
699 ret = netxen_flash_erase_sections(adapter, start, end);
704 void netxen_halt_pegs(struct netxen_adapter *adapter)
706 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1);
707 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1);
708 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1);
709 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1);
712 int netxen_flash_unlock(struct netxen_adapter *adapter)
716 ret = netxen_rom_wrsr(adapter, 0);
720 ret = netxen_rom_wren(adapter);
728 #define NETXEN_BOARDTYPE 0x4008
729 #define NETXEN_BOARDNUM 0x400c
730 #define NETXEN_CHIPNUM 0x4010
731 #define NETXEN_ROMBUS_RESET 0xFFFFFFFF
733 int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
738 struct crb_addr_pair *buf;
742 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
743 NETXEN_ROMBUS_RESET);
747 if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0)
748 printk("P2 ROM board type: 0x%08x\n", val);
750 printk("Could not read board type\n");
751 if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0)
752 printk("P2 ROM board num: 0x%08x\n", val);
754 printk("Could not read board number\n");
755 if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0)
756 printk("P2 ROM chip num: 0x%08x\n", val);
758 printk("Could not read chip number\n");
761 if (netxen_rom_fast_read(adapter, 0, &n) == 0 && (n & 0x80000000)) {
765 printk("%s: %d CRB init values found"
766 " in ROM.\n", netxen_nic_driver_name, n);
768 printk("%s:n=0x%x Error! NetXen card flash not"
769 " initialized.\n", __FUNCTION__, n);
772 buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
774 printk("%s: netxen_pinit_from_rom: Unable to calloc "
775 "memory.\n", netxen_nic_driver_name);
778 for (i = 0; i < n; i++) {
779 if (netxen_rom_fast_read(adapter, 8 * i + 4, &val) != 0
780 || netxen_rom_fast_read(adapter, 8 * i + 8,
788 printk("%s: PCI: 0x%08x == 0x%08x\n",
789 netxen_nic_driver_name, (unsigned int)
790 netxen_decode_crb_addr(addr), val);
792 for (i = 0; i < n; i++) {
794 off = netxen_decode_crb_addr(buf[i].addr);
795 if (off == NETXEN_ADDR_ERROR) {
796 printk(KERN_ERR"CRB init value out of range %x\n",
800 off += NETXEN_PCI_CRBSPACE;
801 /* skipping cold reboot MAGIC */
802 if (off == NETXEN_CAM_RAM(0x1fc))
805 /* After writing this register, HW needs time for CRB */
806 /* to quiet down (else crb_window returns 0xffffffff) */
807 if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
809 /* hold xdma in reset also */
810 buf[i].data = NETXEN_NIC_XDMA_RESET;
813 netxen_nic_hw_write_wx(adapter, off, &buf[i].data, 4);
815 if (init_delay == 1) {
823 /* disable_peg_cache_all */
825 /* unreset_net_cache */
826 netxen_nic_hw_read_wx(adapter, NETXEN_ROMUSB_GLB_SW_RESET, &val,
828 netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET,
830 /* p2dn replyCount */
831 netxen_crb_writelit_adapter(adapter,
832 NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
833 /* disable_peg_cache 0 */
834 netxen_crb_writelit_adapter(adapter,
835 NETXEN_CRB_PEG_NET_D + 0x4c, 8);
836 /* disable_peg_cache 1 */
837 netxen_crb_writelit_adapter(adapter,
838 NETXEN_CRB_PEG_NET_I + 0x4c, 8);
843 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8,
845 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc,
848 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8,
850 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc,
853 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8,
855 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc,
858 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8,
860 netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc,
866 int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
872 adapter->dummy_dma.addr =
873 pci_alloc_consistent(adapter->pdev,
874 NETXEN_HOST_DUMMY_DMA_SIZE,
875 &adapter->dummy_dma.phys_addr);
876 if (adapter->dummy_dma.addr == NULL) {
877 printk("%s: ERROR: Could not allocate dummy DMA memory\n",
882 addr = (uint64_t) adapter->dummy_dma.phys_addr;
883 hi = (addr >> 32) & 0xffffffff;
884 lo = addr & 0xffffffff;
886 writel(hi, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI));
887 writel(lo, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO));
892 void netxen_free_adapter_offload(struct netxen_adapter *adapter)
896 if (adapter->dummy_dma.addr) {
899 if (dma_watchdog_shutdown_request(adapter) == 1)
902 if (dma_watchdog_shutdown_poll_result(adapter) == 1)
907 pci_free_consistent(adapter->pdev,
908 NETXEN_HOST_DUMMY_DMA_SIZE,
909 adapter->dummy_dma.addr,
910 adapter->dummy_dma.phys_addr);
911 adapter->dummy_dma.addr = NULL;
913 printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
914 adapter->netdev->name);
919 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
926 val = readl(NETXEN_CRB_NORMALIZE
927 (adapter, CRB_CMDPEG_STATE));
928 pegtune_val = readl(NETXEN_CRB_NORMALIZE
929 (adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE));
931 if (val == PHAN_INITIALIZE_COMPLETE ||
932 val == PHAN_INITIALIZE_ACK)
938 printk(KERN_WARNING "netxen_phantom_init: init failed, "
939 "pegtune_val=%x\n", pegtune_val);
947 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
949 struct net_device *netdev = adapter->netdev;
950 uint32_t temp, temp_state, temp_val;
953 temp = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_TEMP_STATE));
955 temp_state = nx_get_temp_state(temp);
956 temp_val = nx_get_temp_val(temp);
958 if (temp_state == NX_TEMP_PANIC) {
960 "%s: Device temperature %d degrees C exceeds"
961 " maximum allowed. Hardware has been shut down.\n",
962 netxen_nic_driver_name, temp_val);
964 netif_carrier_off(netdev);
965 netif_stop_queue(netdev);
967 } else if (temp_state == NX_TEMP_WARN) {
968 if (adapter->temp == NX_TEMP_NORMAL) {
970 "%s: Device temperature %d degrees C "
971 "exceeds operating range."
972 " Immediate action needed.\n",
973 netxen_nic_driver_name, temp_val);
976 if (adapter->temp == NX_TEMP_WARN) {
978 "%s: Device temperature is now %d degrees C"
979 " in normal range.\n", netxen_nic_driver_name,
983 adapter->temp = temp_state;
987 void netxen_watchdog_task(struct work_struct *work)
989 struct netxen_adapter *adapter =
990 container_of(work, struct netxen_adapter, watchdog_task);
992 if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
995 if (adapter->handle_phy_intr)
996 adapter->handle_phy_intr(adapter);
998 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1002 * netxen_process_rcv() send the received packet to the protocol stack.
1003 * and if the number of receives exceeds RX_BUFFERS_REFILL, then we
1004 * invoke the routine to send more rx buffers to the Phantom...
1006 static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
1007 struct status_desc *desc)
1009 struct pci_dev *pdev = adapter->pdev;
1010 struct net_device *netdev = adapter->netdev;
1011 u64 sts_data = le64_to_cpu(desc->status_desc_data);
1012 int index = netxen_get_sts_refhandle(sts_data);
1013 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1014 struct netxen_rx_buffer *buffer;
1015 struct sk_buff *skb;
1016 u32 length = netxen_get_sts_totallength(sts_data);
1018 struct netxen_rcv_desc_ctx *rcv_desc;
1021 desc_ctx = netxen_get_sts_type(sts_data);
1022 if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) {
1023 printk("%s: %s Bad Rcv descriptor ring\n",
1024 netxen_nic_driver_name, netdev->name);
1028 rcv_desc = &recv_ctx->rcv_desc[desc_ctx];
1029 if (unlikely(index > rcv_desc->max_rx_desc_count)) {
1030 DPRINTK(ERR, "Got a buffer index:%x Max is %x\n",
1031 index, rcv_desc->max_rx_desc_count);
1034 buffer = &rcv_desc->rx_buf_arr[index];
1035 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1036 buffer->lro_current_frags++;
1037 if (netxen_get_sts_desc_lro_last_frag(desc)) {
1038 buffer->lro_expected_frags =
1039 netxen_get_sts_desc_lro_cnt(desc);
1040 buffer->lro_length = length;
1042 if (buffer->lro_current_frags != buffer->lro_expected_frags) {
1043 if (buffer->lro_expected_frags != 0) {
1044 printk("LRO: (refhandle:%x) recv frag. "
1045 "wait for last. flags: %x expected:%d "
1047 netxen_get_sts_desc_lro_last_frag(desc),
1048 buffer->lro_expected_frags,
1049 buffer->lro_current_frags);
1055 pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size,
1056 PCI_DMA_FROMDEVICE);
1058 skb = (struct sk_buff *)buffer->skb;
1060 if (likely(adapter->rx_csum &&
1061 netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
1062 adapter->stats.csummed++;
1063 skb->ip_summed = CHECKSUM_UNNECESSARY;
1065 skb->ip_summed = CHECKSUM_NONE;
1068 if (desc_ctx == RCV_DESC_LRO_CTXID) {
1069 /* True length was only available on the last pkt */
1070 skb_put(skb, buffer->lro_length);
1072 skb_put(skb, length);
1075 skb->protocol = eth_type_trans(skb, netdev);
1077 ret = netif_receive_skb(skb);
1078 netdev->last_rx = jiffies;
1081 * We just consumed one buffer so post a buffer.
1084 buffer->state = NETXEN_BUFFER_FREE;
1085 buffer->lro_current_frags = 0;
1086 buffer->lro_expected_frags = 0;
1088 adapter->stats.no_rcv++;
1089 adapter->stats.rxbytes += length;
1092 /* Process Receive status ring */
1093 u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
1095 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]);
1096 struct status_desc *desc_head = recv_ctx->rcv_status_desc_head;
1097 struct status_desc *desc; /* used to read status desc here */
1098 u32 consumer = recv_ctx->status_rx_consumer;
1099 int count = 0, ring;
1101 while (count < max) {
1102 desc = &desc_head[consumer];
1103 if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) {
1104 DPRINTK(ERR, "desc %p ownedby %x\n", desc,
1105 netxen_get_sts_owner(desc));
1108 netxen_process_rcv(adapter, ctxid, desc);
1109 netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM);
1110 consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
1113 for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
1114 netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
1116 /* update the consumer index in phantom */
1118 recv_ctx->status_rx_consumer = consumer;
1121 writel(consumer, NETXEN_CRB_NORMALIZE(adapter,
1122 recv_ctx->crb_sts_consumer));
1128 /* Process Command status ring */
1129 int netxen_process_cmd_ring(struct netxen_adapter *adapter)
1131 u32 last_consumer, consumer;
1133 struct netxen_cmd_buffer *buffer;
1134 struct pci_dev *pdev = adapter->pdev;
1135 struct net_device *netdev = adapter->netdev;
1136 struct netxen_skb_frag *frag;
1139 last_consumer = adapter->last_cmd_consumer;
1140 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1142 while (last_consumer != consumer) {
1143 buffer = &adapter->cmd_buf_arr[last_consumer];
1145 frag = &buffer->frag_array[0];
1146 pci_unmap_single(pdev, frag->dma, frag->length,
1149 for (i = 1; i < buffer->frag_count; i++) {
1150 frag++; /* Get the next frag */
1151 pci_unmap_page(pdev, frag->dma, frag->length,
1156 adapter->stats.xmitfinished++;
1157 dev_kfree_skb_any(buffer->skb);
1161 last_consumer = get_next_index(last_consumer,
1162 adapter->max_tx_desc_count);
1163 if (++count >= MAX_STATUS_HANDLE)
1168 adapter->last_cmd_consumer = last_consumer;
1170 if (netif_queue_stopped(netdev) && netif_running(netdev)) {
1171 netif_tx_lock(netdev);
1172 netif_wake_queue(netdev);
1174 netif_tx_unlock(netdev);
1178 * If everything is freed up to consumer then check if the ring is full
1179 * If the ring is full then check if more needs to be freed and
1180 * schedule the call back again.
1182 * This happens when there are 2 CPUs. One could be freeing and the
1183 * other filling it. If the ring is full when we get out of here and
1184 * the card has already interrupted the host then the host can miss the
1187 * There is still a possible race condition and the host could miss an
1188 * interrupt. The card has to take care of this.
1190 consumer = le32_to_cpu(*(adapter->cmd_consumer));
1191 done = (last_consumer == consumer);
1197 * netxen_post_rx_buffers puts buffer in the Phantom memory
1199 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
1201 struct pci_dev *pdev = adapter->pdev;
1202 struct sk_buff *skb;
1203 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1204 struct netxen_rcv_desc_ctx *rcv_desc = NULL;
1206 struct rcv_desc *pdesc;
1207 struct netxen_rx_buffer *buffer;
1210 netxen_ctx_msg msg = 0;
1213 rcv_desc = &recv_ctx->rcv_desc[ringid];
1215 producer = rcv_desc->producer;
1216 index = rcv_desc->begin_alloc;
1217 buffer = &rcv_desc->rx_buf_arr[index];
1218 /* We can start writing rx descriptors into the phantom memory. */
1219 while (buffer->state == NETXEN_BUFFER_FREE) {
1220 skb = dev_alloc_skb(rcv_desc->skb_size);
1221 if (unlikely(!skb)) {
1224 * We need to schedule the posting of buffers to the pegs.
1226 rcv_desc->begin_alloc = index;
1227 DPRINTK(ERR, "netxen_post_rx_buffers: "
1228 " allocated only %d buffers\n", count);
1232 count++; /* now there should be no failure */
1233 pdesc = &rcv_desc->desc_head[producer];
1235 #if defined(XGB_DEBUG)
1236 *(unsigned long *)(skb->head) = 0xc0debabe;
1237 if (skb_is_nonlinear(skb)) {
1238 printk("Allocated SKB @%p is nonlinear\n");
1241 skb_reserve(skb, 2);
1242 /* This will be setup when we receive the
1243 * buffer after it has been filled FSL TBD TBD
1244 * skb->dev = netdev;
1246 dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size,
1247 PCI_DMA_FROMDEVICE);
1248 pdesc->addr_buffer = cpu_to_le64(dma);
1250 buffer->state = NETXEN_BUFFER_BUSY;
1252 /* make a rcv descriptor */
1253 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1254 pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
1255 DPRINTK(INFO, "done writing descripter\n");
1257 get_next_index(producer, rcv_desc->max_rx_desc_count);
1258 index = get_next_index(index, rcv_desc->max_rx_desc_count);
1259 buffer = &rcv_desc->rx_buf_arr[index];
1261 /* if we did allocate buffers, then write the count to Phantom */
1263 rcv_desc->begin_alloc = index;
1264 rcv_desc->producer = producer;
1266 writel((producer - 1) & (rcv_desc->max_rx_desc_count - 1),
1267 NETXEN_CRB_NORMALIZE(adapter,
1268 rcv_desc->crb_rcv_producer));
1270 * Write a doorbell msg to tell phanmon of change in
1271 * receive ring producer
1273 netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
1274 netxen_set_msg_privid(msg);
1275 netxen_set_msg_count(msg,
1278 max_rx_desc_count - 1)));
1279 netxen_set_msg_ctxid(msg, adapter->portnum);
1280 netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
1282 DB_NORMALIZE(adapter,
1283 NETXEN_RCV_PRODUCER_OFFSET));
1287 static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
1288 uint32_t ctx, uint32_t ringid)
1290 struct pci_dev *pdev = adapter->pdev;
1291 struct sk_buff *skb;
1292 struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]);
1293 struct netxen_rcv_desc_ctx *rcv_desc = NULL;
1295 struct rcv_desc *pdesc;
1296 struct netxen_rx_buffer *buffer;
1300 rcv_desc = &recv_ctx->rcv_desc[ringid];
1302 producer = rcv_desc->producer;
1303 index = rcv_desc->begin_alloc;
1304 buffer = &rcv_desc->rx_buf_arr[index];
1305 /* We can start writing rx descriptors into the phantom memory. */
1306 while (buffer->state == NETXEN_BUFFER_FREE) {
1307 skb = dev_alloc_skb(rcv_desc->skb_size);
1308 if (unlikely(!skb)) {
1310 * We need to schedule the posting of buffers to the pegs.
1312 rcv_desc->begin_alloc = index;
1313 DPRINTK(ERR, "netxen_post_rx_buffers_nodb: "
1314 " allocated only %d buffers\n", count);
1317 count++; /* now there should be no failure */
1318 pdesc = &rcv_desc->desc_head[producer];
1319 skb_reserve(skb, 2);
1321 * This will be setup when we receive the
1322 * buffer after it has been filled
1323 * skb->dev = netdev;
1326 buffer->state = NETXEN_BUFFER_BUSY;
1327 buffer->dma = pci_map_single(pdev, skb->data,
1329 PCI_DMA_FROMDEVICE);
1331 /* make a rcv descriptor */
1332 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1333 pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size);
1334 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1336 get_next_index(producer, rcv_desc->max_rx_desc_count);
1337 index = get_next_index(index, rcv_desc->max_rx_desc_count);
1338 buffer = &rcv_desc->rx_buf_arr[index];
1341 /* if we did allocate buffers, then write the count to Phantom */
1343 rcv_desc->begin_alloc = index;
1344 rcv_desc->producer = producer;
1346 writel((producer - 1) & (rcv_desc->max_rx_desc_count - 1),
1347 NETXEN_CRB_NORMALIZE(adapter,
1348 rcv_desc->crb_rcv_producer));
1353 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
1355 memset(&adapter->stats, 0, sizeof(adapter->stats));