2 * Copyright (C) 2003 - 2009 NetXen, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
23 * Contact Information:
27 * Cupertino, CA 95014-0701
31 #include <linux/vmalloc.h>
32 #include <linux/interrupt.h>
33 #include "netxen_nic_hw.h"
35 #include "netxen_nic.h"
36 #include "netxen_nic_phan_reg.h"
38 #include <linux/dma-mapping.h>
39 #include <linux/if_vlan.h>
41 #include <linux/ipv6.h>
43 MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
44 MODULE_LICENSE("GPL");
45 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
47 char netxen_nic_driver_name[] = "netxen_nic";
48 static char netxen_nic_driver_string[] = "NetXen Network Driver version "
49 NETXEN_NIC_LINUX_VERSIONID;
51 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
53 /* Default to restricted 1G auto-neg mode */
54 static int wol_port_mode = 5;
56 static int use_msi = 1;
58 static int use_msi_x = 1;
60 /* Local functions to NetXen NIC driver */
61 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
62 const struct pci_device_id *ent);
63 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
64 static int netxen_nic_open(struct net_device *netdev);
65 static int netxen_nic_close(struct net_device *netdev);
66 static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
67 static void netxen_tx_timeout(struct net_device *netdev);
68 static void netxen_tx_timeout_task(struct work_struct *work);
69 static void netxen_watchdog(unsigned long);
70 static int netxen_nic_poll(struct napi_struct *napi, int budget);
71 #ifdef CONFIG_NET_POLL_CONTROLLER
72 static void netxen_nic_poll_controller(struct net_device *netdev);
74 static irqreturn_t netxen_intr(int irq, void *data);
75 static irqreturn_t netxen_msi_intr(int irq, void *data);
76 static irqreturn_t netxen_msix_intr(int irq, void *data);
78 /* PCI Device ID Table */
79 #define ENTRY(device) \
80 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
81 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
83 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
84 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
85 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
86 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
87 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
88 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
89 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
90 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
91 ENTRY(PCI_DEVICE_ID_NX3031),
95 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
97 static struct workqueue_struct *netxen_workq;
98 #define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp)
99 #define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq)
101 static void netxen_watchdog(unsigned long);
103 static uint32_t crb_cmd_producer[4] = {
104 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
105 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
109 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
110 struct nx_host_tx_ring *tx_ring, u32 producer)
112 NXWR32(adapter, tx_ring->crb_cmd_producer, producer);
115 static uint32_t crb_cmd_consumer[4] = {
116 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
117 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
121 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
122 struct nx_host_tx_ring *tx_ring, u32 consumer)
124 NXWR32(adapter, tx_ring->crb_cmd_consumer, consumer);
127 static uint32_t msi_tgt_status[8] = {
128 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
129 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
130 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
131 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
134 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
136 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
138 struct netxen_adapter *adapter = sds_ring->adapter;
140 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
143 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
145 struct netxen_adapter *adapter = sds_ring->adapter;
147 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
149 if (!NETXEN_IS_MSI_FAMILY(adapter))
150 adapter->pci_write_immediate(adapter,
151 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
155 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
157 int size = sizeof(struct nx_host_sds_ring) * count;
159 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
161 return (recv_ctx->sds_rings == NULL);
165 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
167 if (recv_ctx->sds_rings != NULL)
168 kfree(recv_ctx->sds_rings);
172 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
175 struct nx_host_sds_ring *sds_ring;
176 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
178 if ((adapter->flags & NETXEN_NIC_MSIX_ENABLED) &&
179 adapter->rss_supported)
180 adapter->max_sds_rings = (num_online_cpus() >= 4) ? 4 : 2;
182 adapter->max_sds_rings = 1;
184 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
187 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
188 sds_ring = &recv_ctx->sds_rings[ring];
189 netif_napi_add(netdev, &sds_ring->napi,
190 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
197 netxen_napi_enable(struct netxen_adapter *adapter)
200 struct nx_host_sds_ring *sds_ring;
201 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
203 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
204 sds_ring = &recv_ctx->sds_rings[ring];
205 napi_enable(&sds_ring->napi);
206 netxen_nic_enable_int(sds_ring);
211 netxen_napi_disable(struct netxen_adapter *adapter)
214 struct nx_host_sds_ring *sds_ring;
215 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
217 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
218 sds_ring = &recv_ctx->sds_rings[ring];
219 netxen_nic_disable_int(sds_ring);
220 napi_disable(&sds_ring->napi);
224 static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id)
226 struct pci_dev *pdev = adapter->pdev;
227 uint64_t mask, cmask;
229 adapter->pci_using_dac = 0;
231 mask = DMA_BIT_MASK(32);
233 * Consistent DMA mask is set to 32 bit because it cannot be set to
234 * 35 bits. For P3 also leave it at 32 bits for now. Only the rings
235 * come off this pool.
237 cmask = DMA_BIT_MASK(32);
240 if (revision_id >= NX_P3_B0)
241 mask = DMA_BIT_MASK(39);
242 else if (revision_id == NX_P2_C1)
243 mask = DMA_BIT_MASK(35);
245 if (pci_set_dma_mask(pdev, mask) == 0 &&
246 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
247 adapter->pci_using_dac = 1;
254 /* Update addressable range if firmware supports it */
256 nx_update_dma_mask(struct netxen_adapter *adapter)
258 int change, shift, err;
259 uint64_t mask, old_mask;
260 struct pci_dev *pdev = adapter->pdev;
264 shift = NXRD32(adapter, CRB_DMA_SHIFT);
268 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
270 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
274 old_mask = pdev->dma_mask;
275 mask = (1ULL<<(32+shift)) - 1;
277 err = pci_set_dma_mask(pdev, mask);
279 return pci_set_dma_mask(pdev, old_mask);
285 static void netxen_check_options(struct netxen_adapter *adapter)
287 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
288 adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G;
289 else if (adapter->ahw.port_type == NETXEN_NIC_GBE)
290 adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G;
292 adapter->msix_supported = 0;
293 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
294 adapter->msix_supported = !!use_msi_x;
295 adapter->rss_supported = !!use_msi_x;
296 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
297 switch (adapter->ahw.board_type) {
298 case NETXEN_BRDTYPE_P2_SB31_10G:
299 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
300 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
301 adapter->msix_supported = !!use_msi_x;
302 adapter->rss_supported = !!use_msi_x;
309 adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST;
310 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS;
311 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
317 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
321 if (first_boot == 0x55555555) {
322 /* This is the first boot after power up */
323 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
325 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
328 /* PCI bus master workaround */
329 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
330 if (!(first_boot & 0x4)) {
332 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
333 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
336 /* This is the first boot after power up */
337 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
338 if (first_boot != 0x80000f) {
339 /* clear the register for future unloads/loads */
340 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
344 /* Start P2 boot loader */
345 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
346 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
350 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
352 if (++timeout > 5000)
355 } while (val == NETXEN_BDINFO_MAGIC);
360 static void netxen_set_port_mode(struct netxen_adapter *adapter)
364 val = adapter->ahw.board_type;
365 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
366 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
367 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
368 data = NETXEN_PORT_MODE_802_3_AP;
369 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
370 } else if (port_mode == NETXEN_PORT_MODE_XG) {
371 data = NETXEN_PORT_MODE_XG;
372 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
373 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
374 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
375 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
376 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
377 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
380 data = NETXEN_PORT_MODE_AUTO_NEG;
381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
384 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
385 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
386 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
387 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
388 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
390 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
394 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
399 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
401 pci_read_config_dword(pdev, pos, &control);
403 control |= PCI_MSIX_FLAGS_ENABLE;
406 pci_write_config_dword(pdev, pos, control);
410 static void netxen_init_msix_entries(struct netxen_adapter *adapter)
414 for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++)
415 adapter->msix_entries[i].entry = i;
419 netxen_read_mac_addr(struct netxen_adapter *adapter)
424 struct net_device *netdev = adapter->netdev;
425 struct pci_dev *pdev = adapter->pdev;
427 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
428 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
431 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
435 p = (unsigned char *)&mac_addr;
436 for (i = 0; i < 6; i++)
437 netdev->dev_addr[i] = *(p + 5 - i);
439 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
441 /* set station address */
443 if (!is_valid_ether_addr(netdev->perm_addr))
444 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
449 int netxen_nic_set_mac(struct net_device *netdev, void *p)
451 struct netxen_adapter *adapter = netdev_priv(netdev);
452 struct sockaddr *addr = p;
454 if (!is_valid_ether_addr(addr->sa_data))
457 if (netif_running(netdev)) {
458 netif_device_detach(netdev);
459 netxen_napi_disable(adapter);
462 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
463 adapter->macaddr_set(adapter, addr->sa_data);
465 if (netif_running(netdev)) {
466 netif_device_attach(netdev);
467 netxen_napi_enable(adapter);
472 static void netxen_set_multicast_list(struct net_device *dev)
474 struct netxen_adapter *adapter = netdev_priv(dev);
476 adapter->set_multi(dev);
479 static const struct net_device_ops netxen_netdev_ops = {
480 .ndo_open = netxen_nic_open,
481 .ndo_stop = netxen_nic_close,
482 .ndo_start_xmit = netxen_nic_xmit_frame,
483 .ndo_get_stats = netxen_nic_get_stats,
484 .ndo_validate_addr = eth_validate_addr,
485 .ndo_set_multicast_list = netxen_set_multicast_list,
486 .ndo_set_mac_address = netxen_nic_set_mac,
487 .ndo_change_mtu = netxen_nic_change_mtu,
488 .ndo_tx_timeout = netxen_tx_timeout,
489 #ifdef CONFIG_NET_POLL_CONTROLLER
490 .ndo_poll_controller = netxen_nic_poll_controller,
495 netxen_setup_intr(struct netxen_adapter *adapter)
497 struct netxen_legacy_intr_set *legacy_intrp;
498 struct pci_dev *pdev = adapter->pdev;
500 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
502 if (adapter->ahw.revision_id >= NX_P3_B0)
503 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
505 legacy_intrp = &legacy_intr[0];
506 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
507 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
508 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
509 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
511 netxen_set_msix_bit(pdev, 0);
513 if (adapter->msix_supported) {
515 netxen_init_msix_entries(adapter);
516 if (pci_enable_msix(pdev, adapter->msix_entries,
517 MSIX_ENTRIES_PER_ADAPTER))
520 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
521 netxen_set_msix_bit(pdev, 1);
522 dev_info(&pdev->dev, "using msi-x interrupts\n");
526 if (use_msi && !pci_enable_msi(pdev)) {
527 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
528 dev_info(&pdev->dev, "using msi interrupts\n");
530 dev_info(&pdev->dev, "using legacy interrupts\n");
531 adapter->msix_entries[0].vector = pdev->irq;
536 netxen_teardown_intr(struct netxen_adapter *adapter)
538 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
539 pci_disable_msix(adapter->pdev);
540 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
541 pci_disable_msi(adapter->pdev);
545 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
547 if (adapter->ahw.db_base != NULL)
548 iounmap(adapter->ahw.db_base);
549 if (adapter->ahw.pci_base0 != NULL)
550 iounmap(adapter->ahw.pci_base0);
551 if (adapter->ahw.pci_base1 != NULL)
552 iounmap(adapter->ahw.pci_base1);
553 if (adapter->ahw.pci_base2 != NULL)
554 iounmap(adapter->ahw.pci_base2);
558 netxen_setup_pci_map(struct netxen_adapter *adapter)
560 void __iomem *mem_ptr0 = NULL;
561 void __iomem *mem_ptr1 = NULL;
562 void __iomem *mem_ptr2 = NULL;
563 void __iomem *db_ptr = NULL;
565 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
567 struct pci_dev *pdev = adapter->pdev;
568 int pci_func = adapter->ahw.pci_func;
573 * Set the CRB window to invalid. If any register in window 0 is
574 * accessed it should set the window to 0 and then reset it to 1.
576 adapter->curr_window = 255;
577 adapter->ahw.qdr_sn_window = -1;
578 adapter->ahw.ddr_mn_window = -1;
580 /* remap phys address */
581 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
582 mem_len = pci_resource_len(pdev, 0);
585 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
586 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
587 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
588 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
589 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
590 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
591 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
593 /* 128 Meg of memory */
594 if (mem_len == NETXEN_PCI_128MB_SIZE) {
595 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
596 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
597 SECOND_PAGE_GROUP_SIZE);
598 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
599 THIRD_PAGE_GROUP_SIZE);
600 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
601 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
602 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
603 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
604 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
605 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
606 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
607 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
608 adapter->pci_write_immediate =
609 netxen_nic_pci_write_immediate_2M;
610 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
611 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
612 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
614 mem_ptr0 = pci_ioremap_bar(pdev, 0);
615 if (mem_ptr0 == NULL) {
616 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
621 adapter->ahw.ddr_mn_window = 0;
622 adapter->ahw.qdr_sn_window = 0;
624 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
626 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
628 adapter->ahw.ms_win_crb += (pci_func * 0x20);
630 adapter->ahw.ms_win_crb +=
631 0xA0 + ((pci_func - 4) * 0x10);
636 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
638 adapter->ahw.pci_base0 = mem_ptr0;
639 adapter->ahw.pci_len0 = pci_len0;
640 adapter->ahw.pci_base1 = mem_ptr1;
641 adapter->ahw.pci_base2 = mem_ptr2;
643 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
646 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
647 db_len = pci_resource_len(pdev, 4);
650 printk(KERN_ERR "%s: doorbell is disabled\n",
651 netxen_nic_driver_name);
656 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
658 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
659 netxen_nic_driver_name);
665 adapter->ahw.db_base = db_ptr;
666 adapter->ahw.db_len = db_len;
670 netxen_cleanup_pci_map(adapter);
675 netxen_start_firmware(struct netxen_adapter *adapter, int request_fw)
677 int val, err, first_boot;
678 struct pci_dev *pdev = adapter->pdev;
680 int first_driver = 0;
682 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
683 first_driver = (adapter->portnum == 0);
685 first_driver = (adapter->ahw.pci_func == 0);
690 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
692 err = netxen_check_hw_init(adapter, first_boot);
694 dev_err(&pdev->dev, "error in init HW init sequence\n");
699 netxen_request_firmware(adapter);
701 if (first_boot != 0x55555555) {
702 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
703 netxen_pinit_from_rom(adapter, 0);
707 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
708 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
709 netxen_set_port_mode(adapter);
711 netxen_load_firmware(adapter);
713 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
715 /* Initialize multicast addr pool owners */
717 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
719 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
723 err = netxen_initialize_adapter_offload(adapter);
728 * Tell the hardware our version number.
730 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
731 | ((_NETXEN_NIC_LINUX_MINOR << 8))
732 | (_NETXEN_NIC_LINUX_SUBVERSION);
733 NXWR32(adapter, CRB_DRIVER_VERSION, val);
735 /* Handshake with the card before we register the devices. */
736 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
738 netxen_free_adapter_offload(adapter);
746 netxen_nic_request_irq(struct netxen_adapter *adapter)
748 irq_handler_t handler;
749 struct nx_host_sds_ring *sds_ring;
752 unsigned long flags = IRQF_SAMPLE_RANDOM;
753 struct net_device *netdev = adapter->netdev;
754 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
756 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
757 handler = netxen_msix_intr;
758 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
759 handler = netxen_msi_intr;
761 flags |= IRQF_SHARED;
762 handler = netxen_intr;
764 adapter->irq = netdev->irq;
766 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
767 sds_ring = &recv_ctx->sds_rings[ring];
768 sprintf(sds_ring->name, "%16s[%d]", netdev->name, ring);
769 err = request_irq(sds_ring->irq, handler,
770 flags, sds_ring->name, sds_ring);
779 netxen_nic_free_irq(struct netxen_adapter *adapter)
782 struct nx_host_sds_ring *sds_ring;
784 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
786 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
787 sds_ring = &recv_ctx->sds_rings[ring];
788 free_irq(sds_ring->irq, sds_ring);
793 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
797 err = adapter->init_port(adapter, adapter->physical_port);
799 printk(KERN_ERR "%s: Failed to initialize port %d\n",
800 netxen_nic_driver_name, adapter->portnum);
803 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
804 adapter->macaddr_set(adapter, netdev->dev_addr);
806 adapter->set_multi(netdev);
807 adapter->set_mtu(adapter, netdev->mtu);
809 adapter->ahw.linkup = 0;
811 netxen_napi_enable(adapter);
813 if (adapter->max_sds_rings > 1)
814 netxen_config_rss(adapter, 1);
816 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
817 netxen_linkevent_request(adapter, 1);
819 netxen_nic_set_link_parameters(adapter);
821 mod_timer(&adapter->watchdog_timer, jiffies);
827 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
829 netif_carrier_off(netdev);
830 netif_stop_queue(netdev);
832 netxen_napi_disable(adapter);
834 if (adapter->stop_port)
835 adapter->stop_port(adapter);
837 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
838 netxen_p3_free_mac_list(adapter);
840 netxen_release_tx_buffers(adapter);
842 FLUSH_SCHEDULED_WORK();
843 del_timer_sync(&adapter->watchdog_timer);
848 netxen_nic_attach(struct netxen_adapter *adapter)
850 struct net_device *netdev = adapter->netdev;
851 struct pci_dev *pdev = adapter->pdev;
853 struct nx_host_rds_ring *rds_ring;
854 struct nx_host_tx_ring *tx_ring;
856 err = netxen_init_firmware(adapter);
858 printk(KERN_ERR "Failed to init firmware\n");
862 if (adapter->fw_major < 4)
863 adapter->max_rds_rings = 3;
865 adapter->max_rds_rings = 2;
867 err = netxen_alloc_sw_resources(adapter);
869 printk(KERN_ERR "%s: Error in setting sw resources\n",
874 netxen_nic_clear_stats(adapter);
876 err = netxen_alloc_hw_resources(adapter);
878 printk(KERN_ERR "%s: Error in setting hw resources\n",
880 goto err_out_free_sw;
883 if (adapter->fw_major < 4) {
884 tx_ring = adapter->tx_ring;
885 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
886 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
888 netxen_nic_update_cmd_producer(adapter, tx_ring, 0);
889 netxen_nic_update_cmd_consumer(adapter, tx_ring, 0);
892 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
893 rds_ring = &adapter->recv_ctx.rds_rings[ring];
894 netxen_post_rx_buffers(adapter, ring, rds_ring);
897 err = netxen_nic_request_irq(adapter);
899 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
901 goto err_out_free_rxbuf;
904 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
908 netxen_release_rx_buffers(adapter);
909 netxen_free_hw_resources(adapter);
911 netxen_free_sw_resources(adapter);
916 netxen_nic_detach(struct netxen_adapter *adapter)
918 netxen_nic_free_irq(adapter);
920 netxen_release_rx_buffers(adapter);
921 netxen_free_hw_resources(adapter);
922 netxen_free_sw_resources(adapter);
928 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
930 struct net_device *netdev = NULL;
931 struct netxen_adapter *adapter = NULL;
933 int pci_func_id = PCI_FUNC(pdev->devfn);
936 if (pdev->class != 0x020000) {
937 printk(KERN_DEBUG "NetXen function %d, class %x will not "
938 "be enabled.\n",pci_func_id, pdev->class);
942 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
943 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
944 "will not be enabled.\n",
949 if ((err = pci_enable_device(pdev)))
952 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
954 goto err_out_disable_pdev;
957 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
958 goto err_out_disable_pdev;
960 pci_set_master(pdev);
962 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
964 printk(KERN_ERR"%s: Failed to allocate memory for the "
965 "device block.Check system memory resource"
966 " usage.\n", netxen_nic_driver_name);
967 goto err_out_free_res;
970 SET_NETDEV_DEV(netdev, &pdev->dev);
972 adapter = netdev_priv(netdev);
973 adapter->netdev = netdev;
974 adapter->pdev = pdev;
975 adapter->ahw.pci_func = pci_func_id;
977 revision_id = pdev->revision;
978 adapter->ahw.revision_id = revision_id;
980 err = nx_set_dma_mask(adapter, revision_id);
982 goto err_out_free_netdev;
984 rwlock_init(&adapter->adapter_lock);
985 spin_lock_init(&adapter->tx_clean_lock);
986 INIT_LIST_HEAD(&adapter->mac_list);
988 err = netxen_setup_pci_map(adapter);
990 goto err_out_free_netdev;
992 /* This will be reset for mezz cards */
993 adapter->portnum = pci_func_id;
994 adapter->rx_csum = 1;
995 adapter->mc_enabled = 0;
996 if (NX_IS_REVISION_P3(revision_id))
997 adapter->max_mc_count = 38;
999 adapter->max_mc_count = 16;
1001 netdev->netdev_ops = &netxen_netdev_ops;
1002 netdev->watchdog_timeo = 2*HZ;
1004 netxen_nic_change_mtu(netdev, netdev->mtu);
1006 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1008 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1009 netdev->features |= (NETIF_F_GRO);
1010 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1012 if (NX_IS_REVISION_P3(revision_id)) {
1013 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1014 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1017 if (adapter->pci_using_dac) {
1018 netdev->features |= NETIF_F_HIGHDMA;
1019 netdev->vlan_features |= NETIF_F_HIGHDMA;
1022 if (netxen_nic_get_board_info(adapter) != 0) {
1023 printk("%s: Error getting board config info.\n",
1024 netxen_nic_driver_name);
1026 goto err_out_iounmap;
1029 netxen_initialize_adapter_ops(adapter);
1031 /* Mezz cards have PCI function 0,2,3 enabled */
1032 switch (adapter->ahw.board_type) {
1033 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1034 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1035 if (pci_func_id >= 2)
1036 adapter->portnum = pci_func_id - 2;
1042 err = netxen_start_firmware(adapter, 1);
1044 goto err_out_iounmap;
1046 nx_update_dma_mask(adapter);
1048 netxen_nic_get_firmware_info(adapter);
1051 * See if the firmware gave us a virtual-physical port mapping.
1053 adapter->physical_port = adapter->portnum;
1054 if (adapter->fw_major < 4) {
1055 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1056 if (i != 0x55555555)
1057 adapter->physical_port = i;
1060 netxen_check_options(adapter);
1062 netxen_setup_intr(adapter);
1064 netdev->irq = adapter->msix_entries[0].vector;
1066 if (netxen_napi_add(adapter, netdev))
1067 goto err_out_disable_msi;
1069 init_timer(&adapter->watchdog_timer);
1070 adapter->watchdog_timer.function = &netxen_watchdog;
1071 adapter->watchdog_timer.data = (unsigned long)adapter;
1072 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1073 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1075 err = netxen_read_mac_addr(adapter);
1077 dev_warn(&pdev->dev, "failed to read mac addr\n");
1079 netif_carrier_off(netdev);
1080 netif_stop_queue(netdev);
1082 if ((err = register_netdev(netdev))) {
1083 printk(KERN_ERR "%s: register_netdev failed port #%d"
1084 " aborting\n", netxen_nic_driver_name,
1087 goto err_out_disable_msi;
1090 pci_set_drvdata(pdev, adapter);
1092 switch (adapter->ahw.port_type) {
1093 case NETXEN_NIC_GBE:
1094 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1095 adapter->netdev->name);
1097 case NETXEN_NIC_XGBE:
1098 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1099 adapter->netdev->name);
1105 err_out_disable_msi:
1106 netxen_teardown_intr(adapter);
1108 netxen_free_adapter_offload(adapter);
1111 netxen_cleanup_pci_map(adapter);
1113 err_out_free_netdev:
1114 free_netdev(netdev);
1117 pci_release_regions(pdev);
1119 err_out_disable_pdev:
1120 pci_set_drvdata(pdev, NULL);
1121 pci_disable_device(pdev);
1125 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1127 struct netxen_adapter *adapter;
1128 struct net_device *netdev;
1130 adapter = pci_get_drvdata(pdev);
1131 if (adapter == NULL)
1134 netdev = adapter->netdev;
1136 unregister_netdev(netdev);
1138 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1139 netxen_nic_detach(adapter);
1142 if (adapter->portnum == 0)
1143 netxen_free_adapter_offload(adapter);
1145 netxen_teardown_intr(adapter);
1146 netxen_free_sds_rings(&adapter->recv_ctx);
1148 netxen_cleanup_pci_map(adapter);
1150 netxen_release_firmware(adapter);
1152 pci_release_regions(pdev);
1153 pci_disable_device(pdev);
1154 pci_set_drvdata(pdev, NULL);
1156 free_netdev(netdev);
1160 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1163 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1164 struct net_device *netdev = adapter->netdev;
1166 netif_device_detach(netdev);
1168 if (netif_running(netdev))
1169 netxen_nic_down(adapter, netdev);
1171 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1172 netxen_nic_detach(adapter);
1174 pci_save_state(pdev);
1176 if (netxen_nic_wol_supported(adapter)) {
1177 pci_enable_wake(pdev, PCI_D3cold, 1);
1178 pci_enable_wake(pdev, PCI_D3hot, 1);
1181 pci_disable_device(pdev);
1182 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1188 netxen_nic_resume(struct pci_dev *pdev)
1190 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1191 struct net_device *netdev = adapter->netdev;
1194 pci_set_power_state(pdev, PCI_D0);
1195 pci_restore_state(pdev);
1197 err = pci_enable_device(pdev);
1201 adapter->curr_window = 255;
1203 err = netxen_start_firmware(adapter, 0);
1205 dev_err(&pdev->dev, "failed to start firmware\n");
1209 if (netif_running(netdev)) {
1210 err = netxen_nic_attach(adapter);
1214 err = netxen_nic_up(adapter, netdev);
1218 netif_device_attach(netdev);
1224 static int netxen_nic_open(struct net_device *netdev)
1226 struct netxen_adapter *adapter = netdev_priv(netdev);
1229 if (adapter->driver_mismatch)
1232 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
1233 err = netxen_nic_attach(adapter);
1238 err = netxen_nic_up(adapter, netdev);
1242 netif_start_queue(netdev);
1247 netxen_nic_detach(adapter);
1252 * netxen_nic_close - Disables a network interface entry point
1254 static int netxen_nic_close(struct net_device *netdev)
1256 struct netxen_adapter *adapter = netdev_priv(netdev);
1258 netxen_nic_down(adapter, netdev);
1262 static bool netxen_tso_check(struct net_device *netdev,
1263 struct cmd_desc_type0 *desc, struct sk_buff *skb)
1266 u8 opcode = TX_ETHER_PKT;
1267 __be16 protocol = skb->protocol;
1270 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1271 struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data;
1272 protocol = vh->h_vlan_encapsulated_proto;
1273 flags = FLAGS_VLAN_TAGGED;
1276 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1277 skb_shinfo(skb)->gso_size > 0) {
1279 desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1280 desc->total_hdr_length =
1281 skb_transport_offset(skb) + tcp_hdrlen(skb);
1283 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1284 TX_TCP_LSO6 : TX_TCP_LSO;
1287 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1290 if (protocol == cpu_to_be16(ETH_P_IP)) {
1291 l4proto = ip_hdr(skb)->protocol;
1293 if (l4proto == IPPROTO_TCP)
1294 opcode = TX_TCP_PKT;
1295 else if(l4proto == IPPROTO_UDP)
1296 opcode = TX_UDP_PKT;
1297 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1298 l4proto = ipv6_hdr(skb)->nexthdr;
1300 if (l4proto == IPPROTO_TCP)
1301 opcode = TX_TCPV6_PKT;
1302 else if(l4proto == IPPROTO_UDP)
1303 opcode = TX_UDPV6_PKT;
1306 desc->tcp_hdr_offset = skb_transport_offset(skb);
1307 desc->ip_hdr_offset = skb_network_offset(skb);
1308 netxen_set_tx_flags_opcode(desc, flags, opcode);
1313 netxen_clean_tx_dma_mapping(struct pci_dev *pdev,
1314 struct netxen_cmd_buffer *pbuf, int last)
1317 struct netxen_skb_frag *buffrag;
1319 buffrag = &pbuf->frag_array[0];
1320 pci_unmap_single(pdev, buffrag->dma,
1321 buffrag->length, PCI_DMA_TODEVICE);
1323 for (k = 1; k < last; k++) {
1324 buffrag = &pbuf->frag_array[k];
1325 pci_unmap_page(pdev, buffrag->dma,
1326 buffrag->length, PCI_DMA_TODEVICE);
1331 netxen_clear_cmddesc(u64 *desc)
1334 for (i = 0; i < 8; i++)
1339 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1341 struct netxen_adapter *adapter = netdev_priv(netdev);
1342 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1343 unsigned int first_seg_len = skb->len - skb->data_len;
1344 struct netxen_cmd_buffer *pbuf;
1345 struct netxen_skb_frag *buffrag;
1346 struct cmd_desc_type0 *hwdesc;
1347 struct pci_dev *pdev = adapter->pdev;
1348 dma_addr_t temp_dma;
1351 u32 producer, consumer;
1352 int frag_count, no_of_desc;
1353 u32 num_txd = tx_ring->num_desc;
1354 bool is_tso = false;
1356 frag_count = skb_shinfo(skb)->nr_frags + 1;
1358 /* 4 fragments per cmd des */
1359 no_of_desc = (frag_count + 3) >> 2;
1361 producer = tx_ring->producer;
1363 consumer = tx_ring->sw_consumer;
1364 if ((no_of_desc+2) >= find_diff_among(producer, consumer, num_txd)) {
1365 netif_stop_queue(netdev);
1367 return NETDEV_TX_BUSY;
1370 hwdesc = &tx_ring->desc_head[producer];
1371 netxen_clear_cmddesc((u64 *)hwdesc);
1372 pbuf = &tx_ring->cmd_buf_arr[producer];
1374 is_tso = netxen_tso_check(netdev, hwdesc, skb);
1377 pbuf->frag_count = frag_count;
1378 buffrag = &pbuf->frag_array[0];
1379 temp_dma = pci_map_single(pdev, skb->data, first_seg_len,
1381 if (pci_dma_mapping_error(pdev, temp_dma))
1384 buffrag->dma = temp_dma;
1385 buffrag->length = first_seg_len;
1386 netxen_set_tx_frags_len(hwdesc, frag_count, skb->len);
1387 netxen_set_tx_port(hwdesc, adapter->portnum);
1389 hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len);
1390 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1392 for (i = 1, k = 1; i < frag_count; i++, k++) {
1393 struct skb_frag_struct *frag;
1395 unsigned long offset;
1397 /* move to next desc. if there is a need */
1398 if ((i & 0x3) == 0) {
1400 producer = get_next_index(producer, num_txd);
1401 hwdesc = &tx_ring->desc_head[producer];
1402 netxen_clear_cmddesc((u64 *)hwdesc);
1403 pbuf = &tx_ring->cmd_buf_arr[producer];
1406 frag = &skb_shinfo(skb)->frags[i - 1];
1408 offset = frag->page_offset;
1411 temp_dma = pci_map_page(pdev, frag->page, offset,
1412 len, PCI_DMA_TODEVICE);
1413 if (pci_dma_mapping_error(pdev, temp_dma)) {
1414 netxen_clean_tx_dma_mapping(pdev, pbuf, i);
1419 buffrag->dma = temp_dma;
1420 buffrag->length = temp_len;
1422 hwdesc->buffer_length[k] = cpu_to_le16(temp_len);
1425 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1428 hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
1431 hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
1434 hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
1439 producer = get_next_index(producer, num_txd);
1441 /* For LSO, we need to copy the MAC/IP/TCP headers into
1442 * the descriptor ring
1445 int hdr_len, first_hdr_len, more_hdr;
1446 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1447 if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) {
1448 first_hdr_len = sizeof(struct cmd_desc_type0) - 2;
1451 first_hdr_len = hdr_len;
1454 /* copy the MAC/IP/TCP headers to the cmd descriptor list */
1455 hwdesc = &tx_ring->desc_head[producer];
1456 pbuf = &tx_ring->cmd_buf_arr[producer];
1459 /* copy the first 64 bytes */
1460 memcpy(((void *)hwdesc) + 2,
1461 (void *)(skb->data), first_hdr_len);
1462 producer = get_next_index(producer, num_txd);
1465 hwdesc = &tx_ring->desc_head[producer];
1466 pbuf = &tx_ring->cmd_buf_arr[producer];
1468 /* copy the next 64 bytes - should be enough except
1469 * for pathological case
1471 skb_copy_from_linear_data_offset(skb, first_hdr_len,
1475 producer = get_next_index(producer, num_txd);
1479 tx_ring->producer = producer;
1480 adapter->stats.txbytes += skb->len;
1482 netxen_nic_update_cmd_producer(adapter, tx_ring, producer);
1484 adapter->stats.xmitcalled++;
1485 netdev->trans_start = jiffies;
1487 return NETDEV_TX_OK;
1490 adapter->stats.txdropped++;
1491 dev_kfree_skb_any(skb);
1492 return NETDEV_TX_OK;
1495 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1497 struct net_device *netdev = adapter->netdev;
1498 uint32_t temp, temp_state, temp_val;
1501 temp = NXRD32(adapter, CRB_TEMP_STATE);
1503 temp_state = nx_get_temp_state(temp);
1504 temp_val = nx_get_temp_val(temp);
1506 if (temp_state == NX_TEMP_PANIC) {
1508 "%s: Device temperature %d degrees C exceeds"
1509 " maximum allowed. Hardware has been shut down.\n",
1510 netxen_nic_driver_name, temp_val);
1512 netif_carrier_off(netdev);
1513 netif_stop_queue(netdev);
1515 } else if (temp_state == NX_TEMP_WARN) {
1516 if (adapter->temp == NX_TEMP_NORMAL) {
1518 "%s: Device temperature %d degrees C "
1519 "exceeds operating range."
1520 " Immediate action needed.\n",
1521 netxen_nic_driver_name, temp_val);
1524 if (adapter->temp == NX_TEMP_WARN) {
1526 "%s: Device temperature is now %d degrees C"
1527 " in normal range.\n", netxen_nic_driver_name,
1531 adapter->temp = temp_state;
1535 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1537 struct net_device *netdev = adapter->netdev;
1539 if (adapter->ahw.linkup && !linkup) {
1540 printk(KERN_INFO "%s: %s NIC Link is down\n",
1541 netxen_nic_driver_name, netdev->name);
1542 adapter->ahw.linkup = 0;
1543 if (netif_running(netdev)) {
1544 netif_carrier_off(netdev);
1545 netif_stop_queue(netdev);
1548 if (!adapter->has_link_events)
1549 netxen_nic_set_link_parameters(adapter);
1551 } else if (!adapter->ahw.linkup && linkup) {
1552 printk(KERN_INFO "%s: %s NIC Link is up\n",
1553 netxen_nic_driver_name, netdev->name);
1554 adapter->ahw.linkup = 1;
1555 if (netif_running(netdev)) {
1556 netif_carrier_on(netdev);
1557 netif_wake_queue(netdev);
1560 if (!adapter->has_link_events)
1561 netxen_nic_set_link_parameters(adapter);
1565 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1567 u32 val, port, linkup;
1569 port = adapter->physical_port;
1571 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1572 val = NXRD32(adapter, CRB_XG_STATE_P3);
1573 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1574 linkup = (val == XG_LINK_UP_P3);
1576 val = NXRD32(adapter, CRB_XG_STATE);
1577 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1578 linkup = (val >> port) & 1;
1580 val = (val >> port*8) & 0xff;
1581 linkup = (val == XG_LINK_UP);
1585 netxen_advert_link_change(adapter, linkup);
1588 static void netxen_watchdog(unsigned long v)
1590 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
1592 SCHEDULE_WORK(&adapter->watchdog_task);
1595 void netxen_watchdog_task(struct work_struct *work)
1597 struct netxen_adapter *adapter =
1598 container_of(work, struct netxen_adapter, watchdog_task);
1600 if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
1603 if (!adapter->has_link_events)
1604 netxen_nic_handle_phy_intr(adapter);
1606 if (netif_running(adapter->netdev))
1607 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1610 static void netxen_tx_timeout(struct net_device *netdev)
1612 struct netxen_adapter *adapter = (struct netxen_adapter *)
1613 netdev_priv(netdev);
1614 SCHEDULE_WORK(&adapter->tx_timeout_task);
1617 static void netxen_tx_timeout_task(struct work_struct *work)
1619 struct netxen_adapter *adapter =
1620 container_of(work, struct netxen_adapter, tx_timeout_task);
1622 printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
1623 netxen_nic_driver_name, adapter->netdev->name);
1625 netxen_napi_disable(adapter);
1627 adapter->netdev->trans_start = jiffies;
1629 netxen_napi_enable(adapter);
1630 netif_wake_queue(adapter->netdev);
1633 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1635 struct netxen_adapter *adapter = netdev_priv(netdev);
1636 struct net_device_stats *stats = &adapter->net_stats;
1638 memset(stats, 0, sizeof(*stats));
1640 stats->rx_packets = adapter->stats.no_rcv;
1641 stats->tx_packets = adapter->stats.xmitfinished;
1642 stats->rx_bytes = adapter->stats.rxbytes;
1643 stats->tx_bytes = adapter->stats.txbytes;
1644 stats->rx_dropped = adapter->stats.rxdropped;
1645 stats->tx_dropped = adapter->stats.txdropped;
1650 static irqreturn_t netxen_intr(int irq, void *data)
1652 struct nx_host_sds_ring *sds_ring = data;
1653 struct netxen_adapter *adapter = sds_ring->adapter;
1656 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1658 if (!(status & adapter->legacy_intr.int_vec_bit))
1661 if (adapter->ahw.revision_id >= NX_P3_B1) {
1662 /* check interrupt state machine, to be sure */
1663 status = adapter->pci_read_immediate(adapter,
1665 if (!ISR_LEGACY_INT_TRIGGERED(status))
1669 unsigned long our_int = 0;
1671 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1673 /* not our interrupt */
1674 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1677 /* claim interrupt */
1678 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1681 /* clear interrupt */
1682 if (adapter->fw_major < 4)
1683 netxen_nic_disable_int(sds_ring);
1685 adapter->pci_write_immediate(adapter,
1686 adapter->legacy_intr.tgt_status_reg,
1688 /* read twice to ensure write is flushed */
1689 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1690 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1692 napi_schedule(&sds_ring->napi);
1697 static irqreturn_t netxen_msi_intr(int irq, void *data)
1699 struct nx_host_sds_ring *sds_ring = data;
1700 struct netxen_adapter *adapter = sds_ring->adapter;
1702 /* clear interrupt */
1703 adapter->pci_write_immediate(adapter,
1704 msi_tgt_status[adapter->ahw.pci_func], 0xffffffff);
1706 napi_schedule(&sds_ring->napi);
1710 static irqreturn_t netxen_msix_intr(int irq, void *data)
1712 struct nx_host_sds_ring *sds_ring = data;
1714 napi_schedule(&sds_ring->napi);
1718 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1720 struct nx_host_sds_ring *sds_ring =
1721 container_of(napi, struct nx_host_sds_ring, napi);
1723 struct netxen_adapter *adapter = sds_ring->adapter;
1728 tx_complete = netxen_process_cmd_ring(adapter);
1730 work_done = netxen_process_rcv_ring(sds_ring, budget);
1732 if ((work_done < budget) && tx_complete) {
1733 napi_complete(&sds_ring->napi);
1734 netxen_nic_enable_int(sds_ring);
1740 #ifdef CONFIG_NET_POLL_CONTROLLER
1741 static void netxen_nic_poll_controller(struct net_device *netdev)
1743 struct netxen_adapter *adapter = netdev_priv(netdev);
1744 disable_irq(adapter->irq);
1745 netxen_intr(adapter->irq, adapter);
1746 enable_irq(adapter->irq);
1750 static struct pci_driver netxen_driver = {
1751 .name = netxen_nic_driver_name,
1752 .id_table = netxen_pci_tbl,
1753 .probe = netxen_nic_probe,
1754 .remove = __devexit_p(netxen_nic_remove),
1755 .suspend = netxen_nic_suspend,
1756 .resume = netxen_nic_resume
1759 /* Driver Registration on NetXen card */
1761 static int __init netxen_init_module(void)
1763 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
1765 if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL)
1768 return pci_register_driver(&netxen_driver);
1771 module_init(netxen_init_module);
1773 static void __exit netxen_exit_module(void)
1775 pci_unregister_driver(&netxen_driver);
1776 destroy_workqueue(netxen_workq);
1779 module_exit(netxen_exit_module);