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);
446 adapter->macaddr_set(adapter, netdev->dev_addr);
451 static void netxen_set_multicast_list(struct net_device *dev)
453 struct netxen_adapter *adapter = netdev_priv(dev);
455 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
456 netxen_p3_nic_set_multi(dev);
458 netxen_p2_nic_set_multi(dev);
461 static const struct net_device_ops netxen_netdev_ops = {
462 .ndo_open = netxen_nic_open,
463 .ndo_stop = netxen_nic_close,
464 .ndo_start_xmit = netxen_nic_xmit_frame,
465 .ndo_get_stats = netxen_nic_get_stats,
466 .ndo_validate_addr = eth_validate_addr,
467 .ndo_set_multicast_list = netxen_set_multicast_list,
468 .ndo_set_mac_address = netxen_nic_set_mac,
469 .ndo_change_mtu = netxen_nic_change_mtu,
470 .ndo_tx_timeout = netxen_tx_timeout,
471 #ifdef CONFIG_NET_POLL_CONTROLLER
472 .ndo_poll_controller = netxen_nic_poll_controller,
477 netxen_setup_intr(struct netxen_adapter *adapter)
479 struct netxen_legacy_intr_set *legacy_intrp;
480 struct pci_dev *pdev = adapter->pdev;
482 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
484 if (adapter->ahw.revision_id >= NX_P3_B0)
485 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
487 legacy_intrp = &legacy_intr[0];
488 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
489 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
490 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
491 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
493 netxen_set_msix_bit(pdev, 0);
495 if (adapter->msix_supported) {
497 netxen_init_msix_entries(adapter);
498 if (pci_enable_msix(pdev, adapter->msix_entries,
499 MSIX_ENTRIES_PER_ADAPTER))
502 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
503 netxen_set_msix_bit(pdev, 1);
504 dev_info(&pdev->dev, "using msi-x interrupts\n");
508 if (use_msi && !pci_enable_msi(pdev)) {
509 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
510 dev_info(&pdev->dev, "using msi interrupts\n");
512 dev_info(&pdev->dev, "using legacy interrupts\n");
513 adapter->msix_entries[0].vector = pdev->irq;
518 netxen_teardown_intr(struct netxen_adapter *adapter)
520 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
521 pci_disable_msix(adapter->pdev);
522 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
523 pci_disable_msi(adapter->pdev);
527 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
529 if (adapter->ahw.db_base != NULL)
530 iounmap(adapter->ahw.db_base);
531 if (adapter->ahw.pci_base0 != NULL)
532 iounmap(adapter->ahw.pci_base0);
533 if (adapter->ahw.pci_base1 != NULL)
534 iounmap(adapter->ahw.pci_base1);
535 if (adapter->ahw.pci_base2 != NULL)
536 iounmap(adapter->ahw.pci_base2);
540 netxen_setup_pci_map(struct netxen_adapter *adapter)
542 void __iomem *mem_ptr0 = NULL;
543 void __iomem *mem_ptr1 = NULL;
544 void __iomem *mem_ptr2 = NULL;
545 void __iomem *db_ptr = NULL;
547 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
549 struct pci_dev *pdev = adapter->pdev;
550 int pci_func = adapter->ahw.pci_func;
555 * Set the CRB window to invalid. If any register in window 0 is
556 * accessed it should set the window to 0 and then reset it to 1.
558 adapter->curr_window = 255;
559 adapter->ahw.qdr_sn_window = -1;
560 adapter->ahw.ddr_mn_window = -1;
562 /* remap phys address */
563 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
564 mem_len = pci_resource_len(pdev, 0);
567 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
568 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
569 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
570 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
571 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
572 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
573 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
575 /* 128 Meg of memory */
576 if (mem_len == NETXEN_PCI_128MB_SIZE) {
577 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
578 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
579 SECOND_PAGE_GROUP_SIZE);
580 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
581 THIRD_PAGE_GROUP_SIZE);
582 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
583 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
584 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
585 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
586 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
587 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
588 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
589 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
590 adapter->pci_write_immediate =
591 netxen_nic_pci_write_immediate_2M;
592 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
593 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
594 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
596 mem_ptr0 = pci_ioremap_bar(pdev, 0);
597 if (mem_ptr0 == NULL) {
598 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
603 adapter->ahw.ddr_mn_window = 0;
604 adapter->ahw.qdr_sn_window = 0;
606 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
608 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
610 adapter->ahw.ms_win_crb += (pci_func * 0x20);
612 adapter->ahw.ms_win_crb +=
613 0xA0 + ((pci_func - 4) * 0x10);
618 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
620 adapter->ahw.pci_base0 = mem_ptr0;
621 adapter->ahw.pci_len0 = pci_len0;
622 adapter->ahw.pci_base1 = mem_ptr1;
623 adapter->ahw.pci_base2 = mem_ptr2;
625 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
628 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
629 db_len = pci_resource_len(pdev, 4);
632 printk(KERN_ERR "%s: doorbell is disabled\n",
633 netxen_nic_driver_name);
638 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
640 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
641 netxen_nic_driver_name);
647 adapter->ahw.db_base = db_ptr;
648 adapter->ahw.db_len = db_len;
652 netxen_cleanup_pci_map(adapter);
657 netxen_start_firmware(struct netxen_adapter *adapter)
659 int val, err, first_boot;
660 struct pci_dev *pdev = adapter->pdev;
662 int first_driver = 0;
663 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
664 if (adapter->ahw.pci_func == 0)
667 if (adapter->portnum == 0)
674 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
676 err = netxen_check_hw_init(adapter, first_boot);
678 dev_err(&pdev->dev, "error in init HW init sequence\n");
682 if (first_boot != 0x55555555) {
683 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
684 netxen_pinit_from_rom(adapter, 0);
688 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
689 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
690 netxen_set_port_mode(adapter);
692 netxen_load_firmware(adapter);
694 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
696 /* Initialize multicast addr pool owners */
698 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
700 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
704 err = netxen_initialize_adapter_offload(adapter);
709 * Tell the hardware our version number.
711 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
712 | ((_NETXEN_NIC_LINUX_MINOR << 8))
713 | (_NETXEN_NIC_LINUX_SUBVERSION);
714 NXWR32(adapter, CRB_DRIVER_VERSION, val);
716 /* Handshake with the card before we register the devices. */
717 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
719 netxen_free_adapter_offload(adapter);
727 netxen_nic_request_irq(struct netxen_adapter *adapter)
729 irq_handler_t handler;
730 struct nx_host_sds_ring *sds_ring;
733 unsigned long flags = IRQF_SAMPLE_RANDOM;
734 struct net_device *netdev = adapter->netdev;
735 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
737 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
738 handler = netxen_msix_intr;
739 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
740 handler = netxen_msi_intr;
742 flags |= IRQF_SHARED;
743 handler = netxen_intr;
745 adapter->irq = netdev->irq;
747 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
748 sds_ring = &recv_ctx->sds_rings[ring];
749 sprintf(sds_ring->name, "%16s[%d]", netdev->name, ring);
750 err = request_irq(sds_ring->irq, handler,
751 flags, sds_ring->name, sds_ring);
760 netxen_nic_free_irq(struct netxen_adapter *adapter)
763 struct nx_host_sds_ring *sds_ring;
765 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
767 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
768 sds_ring = &recv_ctx->sds_rings[ring];
769 free_irq(sds_ring->irq, sds_ring);
774 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
778 err = adapter->init_port(adapter, adapter->physical_port);
780 printk(KERN_ERR "%s: Failed to initialize port %d\n",
781 netxen_nic_driver_name, adapter->portnum);
784 adapter->macaddr_set(adapter, netdev->dev_addr);
786 netxen_nic_set_link_parameters(adapter);
788 netxen_set_multicast_list(netdev);
789 if (adapter->set_mtu)
790 adapter->set_mtu(adapter, netdev->mtu);
792 adapter->ahw.linkup = 0;
793 mod_timer(&adapter->watchdog_timer, jiffies);
795 netxen_napi_enable(adapter);
797 if (adapter->max_sds_rings > 1)
798 netxen_config_rss(adapter, 1);
800 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
801 netxen_linkevent_request(adapter, 1);
807 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
809 netif_carrier_off(netdev);
810 netif_stop_queue(netdev);
811 netxen_napi_disable(adapter);
813 if (adapter->stop_port)
814 adapter->stop_port(adapter);
816 netxen_release_tx_buffers(adapter);
818 FLUSH_SCHEDULED_WORK();
819 del_timer_sync(&adapter->watchdog_timer);
824 netxen_nic_attach(struct netxen_adapter *adapter)
826 struct net_device *netdev = adapter->netdev;
827 struct pci_dev *pdev = adapter->pdev;
829 struct nx_host_rds_ring *rds_ring;
830 struct nx_host_tx_ring *tx_ring;
832 err = netxen_init_firmware(adapter);
834 printk(KERN_ERR "Failed to init firmware\n");
838 if (adapter->fw_major < 4)
839 adapter->max_rds_rings = 3;
841 adapter->max_rds_rings = 2;
843 err = netxen_alloc_sw_resources(adapter);
845 printk(KERN_ERR "%s: Error in setting sw resources\n",
850 netxen_nic_clear_stats(adapter);
852 err = netxen_alloc_hw_resources(adapter);
854 printk(KERN_ERR "%s: Error in setting hw resources\n",
856 goto err_out_free_sw;
859 if (adapter->fw_major < 4) {
860 tx_ring = &adapter->tx_ring;
861 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
862 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
864 netxen_nic_update_cmd_producer(adapter, tx_ring, 0);
865 netxen_nic_update_cmd_consumer(adapter, tx_ring, 0);
868 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
869 rds_ring = &adapter->recv_ctx.rds_rings[ring];
870 netxen_post_rx_buffers(adapter, ring, rds_ring);
873 err = netxen_nic_request_irq(adapter);
875 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
877 goto err_out_free_rxbuf;
880 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
884 netxen_release_rx_buffers(adapter);
885 netxen_free_hw_resources(adapter);
887 netxen_free_sw_resources(adapter);
892 netxen_nic_detach(struct netxen_adapter *adapter)
894 netxen_nic_free_irq(adapter);
896 netxen_release_rx_buffers(adapter);
897 netxen_free_hw_resources(adapter);
898 netxen_free_sw_resources(adapter);
904 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
906 struct net_device *netdev = NULL;
907 struct netxen_adapter *adapter = NULL;
909 int pci_func_id = PCI_FUNC(pdev->devfn);
912 if (pdev->class != 0x020000) {
913 printk(KERN_DEBUG "NetXen function %d, class %x will not "
914 "be enabled.\n",pci_func_id, pdev->class);
918 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
919 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
920 "will not be enabled.\n",
925 if ((err = pci_enable_device(pdev)))
928 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
930 goto err_out_disable_pdev;
933 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
934 goto err_out_disable_pdev;
936 pci_set_master(pdev);
938 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
940 printk(KERN_ERR"%s: Failed to allocate memory for the "
941 "device block.Check system memory resource"
942 " usage.\n", netxen_nic_driver_name);
943 goto err_out_free_res;
946 SET_NETDEV_DEV(netdev, &pdev->dev);
948 adapter = netdev_priv(netdev);
949 adapter->netdev = netdev;
950 adapter->pdev = pdev;
951 adapter->ahw.pci_func = pci_func_id;
953 revision_id = pdev->revision;
954 adapter->ahw.revision_id = revision_id;
956 err = nx_set_dma_mask(adapter, revision_id);
958 goto err_out_free_netdev;
960 rwlock_init(&adapter->adapter_lock);
961 spin_lock_init(&adapter->tx_clean_lock);
963 err = netxen_setup_pci_map(adapter);
965 goto err_out_free_netdev;
967 /* This will be reset for mezz cards */
968 adapter->portnum = pci_func_id;
969 adapter->rx_csum = 1;
970 adapter->mc_enabled = 0;
971 if (NX_IS_REVISION_P3(revision_id))
972 adapter->max_mc_count = 38;
974 adapter->max_mc_count = 16;
976 netdev->netdev_ops = &netxen_netdev_ops;
977 netdev->watchdog_timeo = 2*HZ;
979 netxen_nic_change_mtu(netdev, netdev->mtu);
981 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
983 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
984 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
986 if (NX_IS_REVISION_P3(revision_id)) {
987 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
988 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
991 if (adapter->pci_using_dac) {
992 netdev->features |= NETIF_F_HIGHDMA;
993 netdev->vlan_features |= NETIF_F_HIGHDMA;
996 if (netxen_nic_get_board_info(adapter) != 0) {
997 printk("%s: Error getting board config info.\n",
998 netxen_nic_driver_name);
1000 goto err_out_iounmap;
1003 netxen_initialize_adapter_ops(adapter);
1005 /* Mezz cards have PCI function 0,2,3 enabled */
1006 switch (adapter->ahw.board_type) {
1007 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1008 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1009 if (pci_func_id >= 2)
1010 adapter->portnum = pci_func_id - 2;
1016 err = netxen_start_firmware(adapter);
1018 goto err_out_iounmap;
1020 nx_update_dma_mask(adapter);
1022 netxen_nic_get_firmware_info(adapter);
1025 * See if the firmware gave us a virtual-physical port mapping.
1027 adapter->physical_port = adapter->portnum;
1028 if (adapter->fw_major < 4) {
1029 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1030 if (i != 0x55555555)
1031 adapter->physical_port = i;
1034 netxen_check_options(adapter);
1036 netxen_setup_intr(adapter);
1038 netdev->irq = adapter->msix_entries[0].vector;
1040 if (netxen_napi_add(adapter, netdev))
1041 goto err_out_disable_msi;
1043 init_timer(&adapter->watchdog_timer);
1044 adapter->watchdog_timer.function = &netxen_watchdog;
1045 adapter->watchdog_timer.data = (unsigned long)adapter;
1046 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1047 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1049 err = netxen_read_mac_addr(adapter);
1051 dev_warn(&pdev->dev, "failed to read mac addr\n");
1053 netif_carrier_off(netdev);
1054 netif_stop_queue(netdev);
1056 if ((err = register_netdev(netdev))) {
1057 printk(KERN_ERR "%s: register_netdev failed port #%d"
1058 " aborting\n", netxen_nic_driver_name,
1061 goto err_out_disable_msi;
1064 pci_set_drvdata(pdev, adapter);
1066 switch (adapter->ahw.port_type) {
1067 case NETXEN_NIC_GBE:
1068 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1069 adapter->netdev->name);
1071 case NETXEN_NIC_XGBE:
1072 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1073 adapter->netdev->name);
1079 err_out_disable_msi:
1080 netxen_teardown_intr(adapter);
1082 netxen_free_adapter_offload(adapter);
1085 netxen_cleanup_pci_map(adapter);
1087 err_out_free_netdev:
1088 free_netdev(netdev);
1091 pci_release_regions(pdev);
1093 err_out_disable_pdev:
1094 pci_set_drvdata(pdev, NULL);
1095 pci_disable_device(pdev);
1099 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1101 struct netxen_adapter *adapter;
1102 struct net_device *netdev;
1104 adapter = pci_get_drvdata(pdev);
1105 if (adapter == NULL)
1108 netdev = adapter->netdev;
1110 unregister_netdev(netdev);
1112 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1113 netxen_nic_detach(adapter);
1115 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1116 netxen_p3_free_mac_list(adapter);
1119 if (adapter->portnum == 0)
1120 netxen_free_adapter_offload(adapter);
1122 netxen_teardown_intr(adapter);
1123 netxen_free_sds_rings(&adapter->recv_ctx);
1125 netxen_cleanup_pci_map(adapter);
1127 pci_release_regions(pdev);
1128 pci_disable_device(pdev);
1129 pci_set_drvdata(pdev, NULL);
1131 free_netdev(netdev);
1135 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1138 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1139 struct net_device *netdev = adapter->netdev;
1141 netif_device_detach(netdev);
1143 if (netif_running(netdev))
1144 netxen_nic_down(adapter, netdev);
1146 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1147 netxen_nic_detach(adapter);
1149 pci_save_state(pdev);
1151 if (netxen_nic_wol_supported(adapter)) {
1152 pci_enable_wake(pdev, PCI_D3cold, 1);
1153 pci_enable_wake(pdev, PCI_D3hot, 1);
1156 pci_disable_device(pdev);
1157 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1163 netxen_nic_resume(struct pci_dev *pdev)
1165 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1166 struct net_device *netdev = adapter->netdev;
1169 pci_set_power_state(pdev, PCI_D0);
1170 pci_restore_state(pdev);
1172 err = pci_enable_device(pdev);
1176 adapter->curr_window = 255;
1178 err = netxen_start_firmware(adapter);
1180 dev_err(&pdev->dev, "failed to start firmware\n");
1184 if (netif_running(netdev)) {
1185 err = netxen_nic_attach(adapter);
1189 err = netxen_nic_up(adapter, netdev);
1193 netif_device_attach(netdev);
1199 static int netxen_nic_open(struct net_device *netdev)
1201 struct netxen_adapter *adapter = netdev_priv(netdev);
1204 if (adapter->driver_mismatch)
1207 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
1208 err = netxen_nic_attach(adapter);
1213 err = netxen_nic_up(adapter, netdev);
1217 netif_start_queue(netdev);
1222 netxen_nic_detach(adapter);
1227 * netxen_nic_close - Disables a network interface entry point
1229 static int netxen_nic_close(struct net_device *netdev)
1231 struct netxen_adapter *adapter = netdev_priv(netdev);
1233 netxen_nic_down(adapter, netdev);
1237 static bool netxen_tso_check(struct net_device *netdev,
1238 struct cmd_desc_type0 *desc, struct sk_buff *skb)
1241 u8 opcode = TX_ETHER_PKT;
1242 __be16 protocol = skb->protocol;
1245 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1246 struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data;
1247 protocol = vh->h_vlan_encapsulated_proto;
1248 flags = FLAGS_VLAN_TAGGED;
1251 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1252 skb_shinfo(skb)->gso_size > 0) {
1254 desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1255 desc->total_hdr_length =
1256 skb_transport_offset(skb) + tcp_hdrlen(skb);
1258 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1259 TX_TCP_LSO6 : TX_TCP_LSO;
1262 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1265 if (protocol == cpu_to_be16(ETH_P_IP)) {
1266 l4proto = ip_hdr(skb)->protocol;
1268 if (l4proto == IPPROTO_TCP)
1269 opcode = TX_TCP_PKT;
1270 else if(l4proto == IPPROTO_UDP)
1271 opcode = TX_UDP_PKT;
1272 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1273 l4proto = ipv6_hdr(skb)->nexthdr;
1275 if (l4proto == IPPROTO_TCP)
1276 opcode = TX_TCPV6_PKT;
1277 else if(l4proto == IPPROTO_UDP)
1278 opcode = TX_UDPV6_PKT;
1281 desc->tcp_hdr_offset = skb_transport_offset(skb);
1282 desc->ip_hdr_offset = skb_network_offset(skb);
1283 netxen_set_tx_flags_opcode(desc, flags, opcode);
1288 netxen_clean_tx_dma_mapping(struct pci_dev *pdev,
1289 struct netxen_cmd_buffer *pbuf, int last)
1292 struct netxen_skb_frag *buffrag;
1294 buffrag = &pbuf->frag_array[0];
1295 pci_unmap_single(pdev, buffrag->dma,
1296 buffrag->length, PCI_DMA_TODEVICE);
1298 for (k = 1; k < last; k++) {
1299 buffrag = &pbuf->frag_array[k];
1300 pci_unmap_page(pdev, buffrag->dma,
1301 buffrag->length, PCI_DMA_TODEVICE);
1306 netxen_clear_cmddesc(u64 *desc)
1309 for (i = 0; i < 8; i++)
1314 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1316 struct netxen_adapter *adapter = netdev_priv(netdev);
1317 struct nx_host_tx_ring *tx_ring = &adapter->tx_ring;
1318 unsigned int first_seg_len = skb->len - skb->data_len;
1319 struct netxen_cmd_buffer *pbuf;
1320 struct netxen_skb_frag *buffrag;
1321 struct cmd_desc_type0 *hwdesc;
1322 struct pci_dev *pdev = adapter->pdev;
1323 dma_addr_t temp_dma;
1326 u32 producer, consumer;
1327 int frag_count, no_of_desc;
1328 u32 num_txd = tx_ring->num_desc;
1329 bool is_tso = false;
1331 frag_count = skb_shinfo(skb)->nr_frags + 1;
1333 /* 4 fragments per cmd des */
1334 no_of_desc = (frag_count + 3) >> 2;
1336 producer = tx_ring->producer;
1338 consumer = tx_ring->sw_consumer;
1339 if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) {
1340 netif_stop_queue(netdev);
1342 return NETDEV_TX_BUSY;
1345 hwdesc = &tx_ring->desc_head[producer];
1346 netxen_clear_cmddesc((u64 *)hwdesc);
1347 pbuf = &tx_ring->cmd_buf_arr[producer];
1349 is_tso = netxen_tso_check(netdev, hwdesc, skb);
1352 pbuf->frag_count = frag_count;
1353 buffrag = &pbuf->frag_array[0];
1354 temp_dma = pci_map_single(pdev, skb->data, first_seg_len,
1356 if (pci_dma_mapping_error(pdev, temp_dma))
1359 buffrag->dma = temp_dma;
1360 buffrag->length = first_seg_len;
1361 netxen_set_tx_frags_len(hwdesc, frag_count, skb->len);
1362 netxen_set_tx_port(hwdesc, adapter->portnum);
1364 hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len);
1365 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1367 for (i = 1, k = 1; i < frag_count; i++, k++) {
1368 struct skb_frag_struct *frag;
1370 unsigned long offset;
1372 /* move to next desc. if there is a need */
1373 if ((i & 0x3) == 0) {
1375 producer = get_next_index(producer, num_txd);
1376 hwdesc = &tx_ring->desc_head[producer];
1377 netxen_clear_cmddesc((u64 *)hwdesc);
1378 pbuf = &tx_ring->cmd_buf_arr[producer];
1381 frag = &skb_shinfo(skb)->frags[i - 1];
1383 offset = frag->page_offset;
1386 temp_dma = pci_map_page(pdev, frag->page, offset,
1387 len, PCI_DMA_TODEVICE);
1388 if (pci_dma_mapping_error(pdev, temp_dma)) {
1389 netxen_clean_tx_dma_mapping(pdev, pbuf, i);
1394 buffrag->dma = temp_dma;
1395 buffrag->length = temp_len;
1397 hwdesc->buffer_length[k] = cpu_to_le16(temp_len);
1400 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1403 hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
1406 hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
1409 hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
1414 producer = get_next_index(producer, num_txd);
1416 /* For LSO, we need to copy the MAC/IP/TCP headers into
1417 * the descriptor ring
1420 int hdr_len, first_hdr_len, more_hdr;
1421 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1422 if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) {
1423 first_hdr_len = sizeof(struct cmd_desc_type0) - 2;
1426 first_hdr_len = hdr_len;
1429 /* copy the MAC/IP/TCP headers to the cmd descriptor list */
1430 hwdesc = &tx_ring->desc_head[producer];
1431 pbuf = &tx_ring->cmd_buf_arr[producer];
1434 /* copy the first 64 bytes */
1435 memcpy(((void *)hwdesc) + 2,
1436 (void *)(skb->data), first_hdr_len);
1437 producer = get_next_index(producer, num_txd);
1440 hwdesc = &tx_ring->desc_head[producer];
1441 pbuf = &tx_ring->cmd_buf_arr[producer];
1443 /* copy the next 64 bytes - should be enough except
1444 * for pathological case
1446 skb_copy_from_linear_data_offset(skb, first_hdr_len,
1450 producer = get_next_index(producer, num_txd);
1454 tx_ring->producer = producer;
1455 adapter->stats.txbytes += skb->len;
1457 netxen_nic_update_cmd_producer(adapter, tx_ring, producer);
1459 adapter->stats.xmitcalled++;
1460 netdev->trans_start = jiffies;
1462 return NETDEV_TX_OK;
1465 adapter->stats.txdropped++;
1466 dev_kfree_skb_any(skb);
1467 return NETDEV_TX_OK;
1470 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1472 struct net_device *netdev = adapter->netdev;
1473 uint32_t temp, temp_state, temp_val;
1476 temp = NXRD32(adapter, CRB_TEMP_STATE);
1478 temp_state = nx_get_temp_state(temp);
1479 temp_val = nx_get_temp_val(temp);
1481 if (temp_state == NX_TEMP_PANIC) {
1483 "%s: Device temperature %d degrees C exceeds"
1484 " maximum allowed. Hardware has been shut down.\n",
1485 netxen_nic_driver_name, temp_val);
1487 netif_carrier_off(netdev);
1488 netif_stop_queue(netdev);
1490 } else if (temp_state == NX_TEMP_WARN) {
1491 if (adapter->temp == NX_TEMP_NORMAL) {
1493 "%s: Device temperature %d degrees C "
1494 "exceeds operating range."
1495 " Immediate action needed.\n",
1496 netxen_nic_driver_name, temp_val);
1499 if (adapter->temp == NX_TEMP_WARN) {
1501 "%s: Device temperature is now %d degrees C"
1502 " in normal range.\n", netxen_nic_driver_name,
1506 adapter->temp = temp_state;
1510 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1512 struct net_device *netdev = adapter->netdev;
1514 if (adapter->ahw.linkup && !linkup) {
1515 printk(KERN_INFO "%s: %s NIC Link is down\n",
1516 netxen_nic_driver_name, netdev->name);
1517 adapter->ahw.linkup = 0;
1518 if (netif_running(netdev)) {
1519 netif_carrier_off(netdev);
1520 netif_stop_queue(netdev);
1523 if (!adapter->has_link_events)
1524 netxen_nic_set_link_parameters(adapter);
1526 } else if (!adapter->ahw.linkup && linkup) {
1527 printk(KERN_INFO "%s: %s NIC Link is up\n",
1528 netxen_nic_driver_name, netdev->name);
1529 adapter->ahw.linkup = 1;
1530 if (netif_running(netdev)) {
1531 netif_carrier_on(netdev);
1532 netif_wake_queue(netdev);
1535 if (!adapter->has_link_events)
1536 netxen_nic_set_link_parameters(adapter);
1540 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1542 u32 val, port, linkup;
1544 port = adapter->physical_port;
1546 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1547 val = NXRD32(adapter, CRB_XG_STATE_P3);
1548 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1549 linkup = (val == XG_LINK_UP_P3);
1551 val = NXRD32(adapter, CRB_XG_STATE);
1552 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1553 linkup = (val >> port) & 1;
1555 val = (val >> port*8) & 0xff;
1556 linkup = (val == XG_LINK_UP);
1560 netxen_advert_link_change(adapter, linkup);
1563 static void netxen_watchdog(unsigned long v)
1565 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
1567 SCHEDULE_WORK(&adapter->watchdog_task);
1570 void netxen_watchdog_task(struct work_struct *work)
1572 struct netxen_adapter *adapter =
1573 container_of(work, struct netxen_adapter, watchdog_task);
1575 if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
1578 if (!adapter->has_link_events)
1579 netxen_nic_handle_phy_intr(adapter);
1581 if (netif_running(adapter->netdev))
1582 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1585 static void netxen_tx_timeout(struct net_device *netdev)
1587 struct netxen_adapter *adapter = (struct netxen_adapter *)
1588 netdev_priv(netdev);
1589 SCHEDULE_WORK(&adapter->tx_timeout_task);
1592 static void netxen_tx_timeout_task(struct work_struct *work)
1594 struct netxen_adapter *adapter =
1595 container_of(work, struct netxen_adapter, tx_timeout_task);
1597 printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
1598 netxen_nic_driver_name, adapter->netdev->name);
1600 netxen_napi_disable(adapter);
1602 adapter->netdev->trans_start = jiffies;
1604 netxen_napi_enable(adapter);
1605 netif_wake_queue(adapter->netdev);
1608 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1610 struct netxen_adapter *adapter = netdev_priv(netdev);
1611 struct net_device_stats *stats = &adapter->net_stats;
1613 memset(stats, 0, sizeof(*stats));
1615 stats->rx_packets = adapter->stats.no_rcv;
1616 stats->tx_packets = adapter->stats.xmitfinished;
1617 stats->rx_bytes = adapter->stats.rxbytes;
1618 stats->tx_bytes = adapter->stats.txbytes;
1619 stats->rx_dropped = adapter->stats.rxdropped;
1620 stats->tx_dropped = adapter->stats.txdropped;
1625 static irqreturn_t netxen_intr(int irq, void *data)
1627 struct nx_host_sds_ring *sds_ring = data;
1628 struct netxen_adapter *adapter = sds_ring->adapter;
1631 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1633 if (!(status & adapter->legacy_intr.int_vec_bit))
1636 if (adapter->ahw.revision_id >= NX_P3_B1) {
1637 /* check interrupt state machine, to be sure */
1638 status = adapter->pci_read_immediate(adapter,
1640 if (!ISR_LEGACY_INT_TRIGGERED(status))
1644 unsigned long our_int = 0;
1646 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1648 /* not our interrupt */
1649 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1652 /* claim interrupt */
1653 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1656 /* clear interrupt */
1657 if (adapter->fw_major < 4)
1658 netxen_nic_disable_int(sds_ring);
1660 adapter->pci_write_immediate(adapter,
1661 adapter->legacy_intr.tgt_status_reg,
1663 /* read twice to ensure write is flushed */
1664 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1665 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1667 napi_schedule(&sds_ring->napi);
1672 static irqreturn_t netxen_msi_intr(int irq, void *data)
1674 struct nx_host_sds_ring *sds_ring = data;
1675 struct netxen_adapter *adapter = sds_ring->adapter;
1677 /* clear interrupt */
1678 adapter->pci_write_immediate(adapter,
1679 msi_tgt_status[adapter->ahw.pci_func], 0xffffffff);
1681 napi_schedule(&sds_ring->napi);
1685 static irqreturn_t netxen_msix_intr(int irq, void *data)
1687 struct nx_host_sds_ring *sds_ring = data;
1689 napi_schedule(&sds_ring->napi);
1693 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1695 struct nx_host_sds_ring *sds_ring =
1696 container_of(napi, struct nx_host_sds_ring, napi);
1698 struct netxen_adapter *adapter = sds_ring->adapter;
1703 tx_complete = netxen_process_cmd_ring(adapter);
1705 work_done = netxen_process_rcv_ring(sds_ring, budget);
1707 if ((work_done < budget) && tx_complete) {
1708 napi_complete(&sds_ring->napi);
1709 netxen_nic_enable_int(sds_ring);
1715 #ifdef CONFIG_NET_POLL_CONTROLLER
1716 static void netxen_nic_poll_controller(struct net_device *netdev)
1718 struct netxen_adapter *adapter = netdev_priv(netdev);
1719 disable_irq(adapter->irq);
1720 netxen_intr(adapter->irq, adapter);
1721 enable_irq(adapter->irq);
1725 static struct pci_driver netxen_driver = {
1726 .name = netxen_nic_driver_name,
1727 .id_table = netxen_pci_tbl,
1728 .probe = netxen_nic_probe,
1729 .remove = __devexit_p(netxen_nic_remove),
1730 .suspend = netxen_nic_suspend,
1731 .resume = netxen_nic_resume
1734 /* Driver Registration on NetXen card */
1736 static int __init netxen_init_module(void)
1738 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
1740 if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL)
1743 return pci_register_driver(&netxen_driver);
1746 module_init(netxen_init_module);
1748 static void __exit netxen_exit_module(void)
1750 pci_unregister_driver(&netxen_driver);
1751 destroy_workqueue(netxen_workq);
1754 module_exit(netxen_exit_module);