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>
42 #include <linux/inetdevice.h>
44 MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
45 MODULE_LICENSE("GPL");
46 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
48 char netxen_nic_driver_name[] = "netxen_nic";
49 static char netxen_nic_driver_string[] = "NetXen Network Driver version "
50 NETXEN_NIC_LINUX_VERSIONID;
52 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
54 /* Default to restricted 1G auto-neg mode */
55 static int wol_port_mode = 5;
57 static int use_msi = 1;
59 static int use_msi_x = 1;
61 /* Local functions to NetXen NIC driver */
62 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
63 const struct pci_device_id *ent);
64 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
65 static int netxen_nic_open(struct net_device *netdev);
66 static int netxen_nic_close(struct net_device *netdev);
67 static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
68 static void netxen_tx_timeout(struct net_device *netdev);
69 static void netxen_reset_task(struct work_struct *work);
70 static void netxen_watchdog(unsigned long);
71 static int netxen_nic_poll(struct napi_struct *napi, int budget);
72 #ifdef CONFIG_NET_POLL_CONTROLLER
73 static void netxen_nic_poll_controller(struct net_device *netdev);
75 static irqreturn_t netxen_intr(int irq, void *data);
76 static irqreturn_t netxen_msi_intr(int irq, void *data);
77 static irqreturn_t netxen_msix_intr(int irq, void *data);
79 /* PCI Device ID Table */
80 #define ENTRY(device) \
81 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
82 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
84 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
85 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
86 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
87 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
88 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
89 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
90 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
91 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
92 ENTRY(PCI_DEVICE_ID_NX3031),
96 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
98 static void netxen_watchdog(unsigned long);
100 static uint32_t crb_cmd_producer[4] = {
101 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
102 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
106 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
107 struct nx_host_tx_ring *tx_ring)
109 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
111 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
112 netif_stop_queue(adapter->netdev);
117 static uint32_t crb_cmd_consumer[4] = {
118 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
119 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
123 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
124 struct nx_host_tx_ring *tx_ring)
126 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
129 static uint32_t msi_tgt_status[8] = {
130 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
131 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
132 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
133 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
136 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
138 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
140 struct netxen_adapter *adapter = sds_ring->adapter;
142 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
145 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
147 struct netxen_adapter *adapter = sds_ring->adapter;
149 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
151 if (!NETXEN_IS_MSI_FAMILY(adapter))
152 adapter->pci_write_immediate(adapter,
153 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
157 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
159 int size = sizeof(struct nx_host_sds_ring) * count;
161 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
163 return (recv_ctx->sds_rings == NULL);
167 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
169 if (recv_ctx->sds_rings != NULL)
170 kfree(recv_ctx->sds_rings);
172 recv_ctx->sds_rings = NULL;
176 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
179 struct nx_host_sds_ring *sds_ring;
180 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
182 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
185 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
186 sds_ring = &recv_ctx->sds_rings[ring];
187 netif_napi_add(netdev, &sds_ring->napi,
188 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
195 netxen_napi_del(struct netxen_adapter *adapter)
198 struct nx_host_sds_ring *sds_ring;
199 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
201 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
202 sds_ring = &recv_ctx->sds_rings[ring];
203 netif_napi_del(&sds_ring->napi);
206 netxen_free_sds_rings(&adapter->recv_ctx);
210 netxen_napi_enable(struct netxen_adapter *adapter)
213 struct nx_host_sds_ring *sds_ring;
214 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
216 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
217 sds_ring = &recv_ctx->sds_rings[ring];
218 napi_enable(&sds_ring->napi);
219 netxen_nic_enable_int(sds_ring);
224 netxen_napi_disable(struct netxen_adapter *adapter)
227 struct nx_host_sds_ring *sds_ring;
228 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 netxen_nic_disable_int(sds_ring);
233 napi_synchronize(&sds_ring->napi);
234 napi_disable(&sds_ring->napi);
238 static int nx_set_dma_mask(struct netxen_adapter *adapter)
240 struct pci_dev *pdev = adapter->pdev;
241 uint64_t mask, cmask;
243 adapter->pci_using_dac = 0;
245 mask = DMA_BIT_MASK(32);
246 cmask = DMA_BIT_MASK(32);
248 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
250 mask = DMA_BIT_MASK(35);
253 mask = DMA_BIT_MASK(39);
257 if (pci_set_dma_mask(pdev, mask) == 0 &&
258 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
259 adapter->pci_using_dac = 1;
266 /* Update addressable range if firmware supports it */
268 nx_update_dma_mask(struct netxen_adapter *adapter)
270 int change, shift, err;
271 uint64_t mask, old_mask, old_cmask;
272 struct pci_dev *pdev = adapter->pdev;
276 shift = NXRD32(adapter, CRB_DMA_SHIFT);
280 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
282 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
286 old_mask = pdev->dma_mask;
287 old_cmask = pdev->dev.coherent_dma_mask;
289 mask = DMA_BIT_MASK(32+shift);
291 err = pci_set_dma_mask(pdev, mask);
295 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
297 err = pci_set_consistent_dma_mask(pdev, mask);
301 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
307 pci_set_dma_mask(pdev, old_mask);
308 pci_set_consistent_dma_mask(pdev, old_cmask);
313 netxen_check_options(struct netxen_adapter *adapter)
315 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
316 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
317 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
318 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
319 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
320 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
323 adapter->msix_supported = 0;
324 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
325 adapter->msix_supported = !!use_msi_x;
326 adapter->rss_supported = !!use_msi_x;
327 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
328 switch (adapter->ahw.board_type) {
329 case NETXEN_BRDTYPE_P2_SB31_10G:
330 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
331 adapter->msix_supported = !!use_msi_x;
332 adapter->rss_supported = !!use_msi_x;
339 adapter->num_txd = MAX_CMD_DESCRIPTORS;
341 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
342 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
343 adapter->max_rds_rings = 3;
345 adapter->num_lro_rxd = 0;
346 adapter->max_rds_rings = 2;
351 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
355 if (first_boot == 0x55555555) {
356 /* This is the first boot after power up */
357 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
359 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
362 /* PCI bus master workaround */
363 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
364 if (!(first_boot & 0x4)) {
366 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
367 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
370 /* This is the first boot after power up */
371 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
372 if (first_boot != 0x80000f) {
373 /* clear the register for future unloads/loads */
374 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
378 /* Start P2 boot loader */
379 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
380 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
384 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
386 if (++timeout > 5000)
389 } while (val == NETXEN_BDINFO_MAGIC);
394 static void netxen_set_port_mode(struct netxen_adapter *adapter)
398 val = adapter->ahw.board_type;
399 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
400 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
401 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
402 data = NETXEN_PORT_MODE_802_3_AP;
403 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
404 } else if (port_mode == NETXEN_PORT_MODE_XG) {
405 data = NETXEN_PORT_MODE_XG;
406 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
407 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
408 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
409 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
410 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
411 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
412 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
414 data = NETXEN_PORT_MODE_AUTO_NEG;
415 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
418 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
419 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
420 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
421 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
422 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
424 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
428 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
433 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
435 pci_read_config_dword(pdev, pos, &control);
437 control |= PCI_MSIX_FLAGS_ENABLE;
440 pci_write_config_dword(pdev, pos, control);
444 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
448 for (i = 0; i < count; i++)
449 adapter->msix_entries[i].entry = i;
453 netxen_read_mac_addr(struct netxen_adapter *adapter)
458 struct net_device *netdev = adapter->netdev;
459 struct pci_dev *pdev = adapter->pdev;
461 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
462 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
465 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
469 p = (unsigned char *)&mac_addr;
470 for (i = 0; i < 6; i++)
471 netdev->dev_addr[i] = *(p + 5 - i);
473 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
475 /* set station address */
477 if (!is_valid_ether_addr(netdev->perm_addr))
478 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
483 int netxen_nic_set_mac(struct net_device *netdev, void *p)
485 struct netxen_adapter *adapter = netdev_priv(netdev);
486 struct sockaddr *addr = p;
488 if (!is_valid_ether_addr(addr->sa_data))
491 if (netif_running(netdev)) {
492 netif_device_detach(netdev);
493 netxen_napi_disable(adapter);
496 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
497 adapter->macaddr_set(adapter, addr->sa_data);
499 if (netif_running(netdev)) {
500 netif_device_attach(netdev);
501 netxen_napi_enable(adapter);
506 static void netxen_set_multicast_list(struct net_device *dev)
508 struct netxen_adapter *adapter = netdev_priv(dev);
510 adapter->set_multi(dev);
513 static const struct net_device_ops netxen_netdev_ops = {
514 .ndo_open = netxen_nic_open,
515 .ndo_stop = netxen_nic_close,
516 .ndo_start_xmit = netxen_nic_xmit_frame,
517 .ndo_get_stats = netxen_nic_get_stats,
518 .ndo_validate_addr = eth_validate_addr,
519 .ndo_set_multicast_list = netxen_set_multicast_list,
520 .ndo_set_mac_address = netxen_nic_set_mac,
521 .ndo_change_mtu = netxen_nic_change_mtu,
522 .ndo_tx_timeout = netxen_tx_timeout,
523 #ifdef CONFIG_NET_POLL_CONTROLLER
524 .ndo_poll_controller = netxen_nic_poll_controller,
529 netxen_setup_intr(struct netxen_adapter *adapter)
531 struct netxen_legacy_intr_set *legacy_intrp;
532 struct pci_dev *pdev = adapter->pdev;
535 if (adapter->rss_supported) {
536 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
537 MSIX_ENTRIES_PER_ADAPTER : 2;
541 adapter->max_sds_rings = 1;
543 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
545 if (adapter->ahw.revision_id >= NX_P3_B0)
546 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
548 legacy_intrp = &legacy_intr[0];
549 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
550 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
551 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
552 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
554 netxen_set_msix_bit(pdev, 0);
556 if (adapter->msix_supported) {
558 netxen_init_msix_entries(adapter, num_msix);
559 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
561 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
562 netxen_set_msix_bit(pdev, 1);
564 if (adapter->rss_supported)
565 adapter->max_sds_rings = num_msix;
567 dev_info(&pdev->dev, "using msi-x interrupts\n");
572 pci_disable_msix(pdev);
574 /* fall through for msi */
577 if (use_msi && !pci_enable_msi(pdev)) {
578 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
579 adapter->msi_tgt_status =
580 msi_tgt_status[adapter->ahw.pci_func];
581 dev_info(&pdev->dev, "using msi interrupts\n");
582 adapter->msix_entries[0].vector = pdev->irq;
586 dev_info(&pdev->dev, "using legacy interrupts\n");
587 adapter->msix_entries[0].vector = pdev->irq;
591 netxen_teardown_intr(struct netxen_adapter *adapter)
593 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
594 pci_disable_msix(adapter->pdev);
595 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
596 pci_disable_msi(adapter->pdev);
600 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
602 if (adapter->ahw.db_base != NULL)
603 iounmap(adapter->ahw.db_base);
604 if (adapter->ahw.pci_base0 != NULL)
605 iounmap(adapter->ahw.pci_base0);
606 if (adapter->ahw.pci_base1 != NULL)
607 iounmap(adapter->ahw.pci_base1);
608 if (adapter->ahw.pci_base2 != NULL)
609 iounmap(adapter->ahw.pci_base2);
613 netxen_setup_pci_map(struct netxen_adapter *adapter)
615 void __iomem *mem_ptr0 = NULL;
616 void __iomem *mem_ptr1 = NULL;
617 void __iomem *mem_ptr2 = NULL;
618 void __iomem *db_ptr = NULL;
620 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
622 struct pci_dev *pdev = adapter->pdev;
623 int pci_func = adapter->ahw.pci_func;
628 * Set the CRB window to invalid. If any register in window 0 is
629 * accessed it should set the window to 0 and then reset it to 1.
631 adapter->curr_window = 255;
632 adapter->ahw.qdr_sn_window = -1;
633 adapter->ahw.ddr_mn_window = -1;
635 /* remap phys address */
636 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
637 mem_len = pci_resource_len(pdev, 0);
640 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
641 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
642 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
643 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
644 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
645 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
646 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
648 /* 128 Meg of memory */
649 if (mem_len == NETXEN_PCI_128MB_SIZE) {
650 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
651 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
652 SECOND_PAGE_GROUP_SIZE);
653 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
654 THIRD_PAGE_GROUP_SIZE);
655 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
656 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
657 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
658 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
659 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
660 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
661 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
662 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
663 adapter->pci_write_immediate =
664 netxen_nic_pci_write_immediate_2M;
665 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
666 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
667 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
669 mem_ptr0 = pci_ioremap_bar(pdev, 0);
670 if (mem_ptr0 == NULL) {
671 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
676 adapter->ahw.ddr_mn_window = 0;
677 adapter->ahw.qdr_sn_window = 0;
679 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
681 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
683 adapter->ahw.ms_win_crb += (pci_func * 0x20);
685 adapter->ahw.ms_win_crb +=
686 0xA0 + ((pci_func - 4) * 0x10);
691 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
693 adapter->ahw.pci_base0 = mem_ptr0;
694 adapter->ahw.pci_len0 = pci_len0;
695 adapter->ahw.pci_base1 = mem_ptr1;
696 adapter->ahw.pci_base2 = mem_ptr2;
698 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
701 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
702 db_len = pci_resource_len(pdev, 4);
705 printk(KERN_ERR "%s: doorbell is disabled\n",
706 netxen_nic_driver_name);
711 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
713 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
714 netxen_nic_driver_name);
720 adapter->ahw.db_base = db_ptr;
721 adapter->ahw.db_len = db_len;
725 netxen_cleanup_pci_map(adapter);
730 netxen_start_firmware(struct netxen_adapter *adapter, int request_fw)
732 int val, err, first_boot;
733 struct pci_dev *pdev = adapter->pdev;
735 int first_driver = 0;
737 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
738 first_driver = (adapter->portnum == 0);
740 first_driver = (adapter->ahw.pci_func == 0);
745 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
747 err = netxen_check_hw_init(adapter, first_boot);
749 dev_err(&pdev->dev, "error in init HW init sequence\n");
754 netxen_request_firmware(adapter);
756 err = netxen_need_fw_reset(adapter);
760 if (first_boot != 0x55555555) {
761 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
762 netxen_pinit_from_rom(adapter, 0);
766 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
767 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
768 netxen_set_port_mode(adapter);
770 netxen_load_firmware(adapter);
772 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
774 /* Initialize multicast addr pool owners */
776 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
778 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
782 err = netxen_init_dummy_dma(adapter);
787 * Tell the hardware our version number.
789 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
790 | ((_NETXEN_NIC_LINUX_MINOR << 8))
791 | (_NETXEN_NIC_LINUX_SUBVERSION);
792 NXWR32(adapter, CRB_DRIVER_VERSION, val);
795 /* Handshake with the card before we register the devices. */
796 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
798 netxen_free_dummy_dma(adapter);
802 nx_update_dma_mask(adapter);
804 netxen_nic_get_firmware_info(adapter);
810 netxen_nic_request_irq(struct netxen_adapter *adapter)
812 irq_handler_t handler;
813 struct nx_host_sds_ring *sds_ring;
816 unsigned long flags = IRQF_SAMPLE_RANDOM;
817 struct net_device *netdev = adapter->netdev;
818 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
820 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
821 handler = netxen_msix_intr;
822 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
823 handler = netxen_msi_intr;
825 flags |= IRQF_SHARED;
826 handler = netxen_intr;
828 adapter->irq = netdev->irq;
830 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
831 sds_ring = &recv_ctx->sds_rings[ring];
832 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
833 err = request_irq(sds_ring->irq, handler,
834 flags, sds_ring->name, sds_ring);
843 netxen_nic_free_irq(struct netxen_adapter *adapter)
846 struct nx_host_sds_ring *sds_ring;
848 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
850 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
851 sds_ring = &recv_ctx->sds_rings[ring];
852 free_irq(sds_ring->irq, sds_ring);
857 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
859 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
860 adapter->coal.normal.data.rx_time_us =
861 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
862 adapter->coal.normal.data.rx_packets =
863 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
864 adapter->coal.normal.data.tx_time_us =
865 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
866 adapter->coal.normal.data.tx_packets =
867 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
871 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
875 err = adapter->init_port(adapter, adapter->physical_port);
877 printk(KERN_ERR "%s: Failed to initialize port %d\n",
878 netxen_nic_driver_name, adapter->portnum);
881 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
882 adapter->macaddr_set(adapter, netdev->dev_addr);
884 adapter->set_multi(netdev);
885 adapter->set_mtu(adapter, netdev->mtu);
887 adapter->ahw.linkup = 0;
889 if (adapter->max_sds_rings > 1)
890 netxen_config_rss(adapter, 1);
892 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
893 netxen_config_intr_coalesce(adapter);
895 netxen_napi_enable(adapter);
897 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
898 netxen_linkevent_request(adapter, 1);
900 netxen_nic_set_link_parameters(adapter);
902 mod_timer(&adapter->watchdog_timer, jiffies);
908 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
910 spin_lock(&adapter->tx_clean_lock);
911 netif_carrier_off(netdev);
912 netif_tx_disable(netdev);
914 if (adapter->stop_port)
915 adapter->stop_port(adapter);
917 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
918 netxen_p3_free_mac_list(adapter);
920 netxen_napi_disable(adapter);
922 netxen_release_tx_buffers(adapter);
923 spin_unlock(&adapter->tx_clean_lock);
925 del_timer_sync(&adapter->watchdog_timer);
930 netxen_nic_attach(struct netxen_adapter *adapter)
932 struct net_device *netdev = adapter->netdev;
933 struct pci_dev *pdev = adapter->pdev;
935 struct nx_host_rds_ring *rds_ring;
936 struct nx_host_tx_ring *tx_ring;
938 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
941 err = netxen_init_firmware(adapter);
945 err = netxen_napi_add(adapter, netdev);
949 err = netxen_alloc_sw_resources(adapter);
951 printk(KERN_ERR "%s: Error in setting sw resources\n",
956 netxen_nic_clear_stats(adapter);
958 err = netxen_alloc_hw_resources(adapter);
960 printk(KERN_ERR "%s: Error in setting hw resources\n",
962 goto err_out_free_sw;
965 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
966 tx_ring = adapter->tx_ring;
967 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
968 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
970 tx_ring->producer = 0;
971 tx_ring->sw_consumer = 0;
973 netxen_nic_update_cmd_producer(adapter, tx_ring);
974 netxen_nic_update_cmd_consumer(adapter, tx_ring);
977 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
978 rds_ring = &adapter->recv_ctx.rds_rings[ring];
979 netxen_post_rx_buffers(adapter, ring, rds_ring);
982 err = netxen_nic_request_irq(adapter);
984 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
986 goto err_out_free_rxbuf;
989 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
990 netxen_nic_init_coalesce_defaults(adapter);
992 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
996 netxen_release_rx_buffers(adapter);
997 netxen_free_hw_resources(adapter);
999 netxen_free_sw_resources(adapter);
1004 netxen_nic_detach(struct netxen_adapter *adapter)
1006 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1009 netxen_free_hw_resources(adapter);
1010 netxen_release_rx_buffers(adapter);
1011 netxen_nic_free_irq(adapter);
1012 netxen_napi_del(adapter);
1013 netxen_free_sw_resources(adapter);
1019 netxen_nic_reset_context(struct netxen_adapter *adapter)
1022 struct net_device *netdev = adapter->netdev;
1024 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1026 if (netif_running(netdev))
1027 netxen_nic_down(adapter, netdev);
1029 netxen_nic_detach(adapter);
1031 err = netxen_nic_attach(adapter);
1035 if (netif_running(netdev))
1036 err = netxen_nic_up(adapter, netdev);
1043 netxen_setup_netdev(struct netxen_adapter *adapter,
1044 struct net_device *netdev)
1047 struct pci_dev *pdev = adapter->pdev;
1049 adapter->rx_csum = 1;
1050 adapter->mc_enabled = 0;
1051 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1052 adapter->max_mc_count = 38;
1054 adapter->max_mc_count = 16;
1056 netdev->netdev_ops = &netxen_netdev_ops;
1057 netdev->watchdog_timeo = 2*HZ;
1059 netxen_nic_change_mtu(netdev, netdev->mtu);
1061 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1063 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1064 netdev->features |= (NETIF_F_GRO);
1065 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1067 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1068 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1069 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1072 if (adapter->pci_using_dac) {
1073 netdev->features |= NETIF_F_HIGHDMA;
1074 netdev->vlan_features |= NETIF_F_HIGHDMA;
1077 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1078 netdev->features |= (NETIF_F_HW_VLAN_TX);
1080 netdev->irq = adapter->msix_entries[0].vector;
1082 err = netxen_napi_add(adapter, netdev);
1086 init_timer(&adapter->watchdog_timer);
1087 adapter->watchdog_timer.function = &netxen_watchdog;
1088 adapter->watchdog_timer.data = (unsigned long)adapter;
1089 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1090 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1092 if (netxen_read_mac_addr(adapter))
1093 dev_warn(&pdev->dev, "failed to read mac addr\n");
1095 netif_carrier_off(netdev);
1096 netif_stop_queue(netdev);
1098 err = register_netdev(netdev);
1100 dev_err(&pdev->dev, "failed to register net device\n");
1107 static int __devinit
1108 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1110 struct net_device *netdev = NULL;
1111 struct netxen_adapter *adapter = NULL;
1113 int pci_func_id = PCI_FUNC(pdev->devfn);
1114 uint8_t revision_id;
1116 if (pdev->class != 0x020000) {
1117 printk(KERN_DEBUG "NetXen function %d, class %x will not "
1118 "be enabled.\n",pci_func_id, pdev->class);
1122 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1123 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1124 "will not be enabled.\n",
1125 NX_P3_A0, NX_P3_B1);
1129 if ((err = pci_enable_device(pdev)))
1132 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1134 goto err_out_disable_pdev;
1137 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1138 goto err_out_disable_pdev;
1140 pci_set_master(pdev);
1142 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1144 dev_err(&pdev->dev, "failed to allocate net_device\n");
1146 goto err_out_free_res;
1149 SET_NETDEV_DEV(netdev, &pdev->dev);
1151 adapter = netdev_priv(netdev);
1152 adapter->netdev = netdev;
1153 adapter->pdev = pdev;
1154 adapter->ahw.pci_func = pci_func_id;
1156 revision_id = pdev->revision;
1157 adapter->ahw.revision_id = revision_id;
1159 err = nx_set_dma_mask(adapter);
1161 goto err_out_free_netdev;
1163 rwlock_init(&adapter->adapter_lock);
1164 spin_lock_init(&adapter->tx_clean_lock);
1165 INIT_LIST_HEAD(&adapter->mac_list);
1167 err = netxen_setup_pci_map(adapter);
1169 goto err_out_free_netdev;
1171 /* This will be reset for mezz cards */
1172 adapter->portnum = pci_func_id;
1174 err = netxen_nic_get_board_info(adapter);
1176 dev_err(&pdev->dev, "Error getting board config info.\n");
1177 goto err_out_iounmap;
1180 netxen_initialize_adapter_ops(adapter);
1182 /* Mezz cards have PCI function 0,2,3 enabled */
1183 switch (adapter->ahw.board_type) {
1184 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1185 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1186 if (pci_func_id >= 2)
1187 adapter->portnum = pci_func_id - 2;
1193 err = netxen_start_firmware(adapter, 1);
1195 goto err_out_iounmap;
1198 * See if the firmware gave us a virtual-physical port mapping.
1200 adapter->physical_port = adapter->portnum;
1201 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1202 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1203 if (i != 0x55555555)
1204 adapter->physical_port = i;
1207 netxen_check_options(adapter);
1209 netxen_setup_intr(adapter);
1211 err = netxen_setup_netdev(adapter, netdev);
1213 goto err_out_disable_msi;
1215 pci_set_drvdata(pdev, adapter);
1217 switch (adapter->ahw.port_type) {
1218 case NETXEN_NIC_GBE:
1219 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1220 adapter->netdev->name);
1222 case NETXEN_NIC_XGBE:
1223 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1224 adapter->netdev->name);
1230 err_out_disable_msi:
1231 netxen_teardown_intr(adapter);
1233 netxen_free_dummy_dma(adapter);
1236 netxen_cleanup_pci_map(adapter);
1238 err_out_free_netdev:
1239 free_netdev(netdev);
1242 pci_release_regions(pdev);
1244 err_out_disable_pdev:
1245 pci_set_drvdata(pdev, NULL);
1246 pci_disable_device(pdev);
1250 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1252 struct netxen_adapter *adapter;
1253 struct net_device *netdev;
1255 adapter = pci_get_drvdata(pdev);
1256 if (adapter == NULL)
1259 netdev = adapter->netdev;
1261 unregister_netdev(netdev);
1263 cancel_work_sync(&adapter->watchdog_task);
1264 cancel_work_sync(&adapter->tx_timeout_task);
1266 netxen_nic_detach(adapter);
1268 if (adapter->portnum == 0)
1269 netxen_free_dummy_dma(adapter);
1271 netxen_teardown_intr(adapter);
1273 netxen_cleanup_pci_map(adapter);
1275 netxen_release_firmware(adapter);
1277 pci_release_regions(pdev);
1278 pci_disable_device(pdev);
1279 pci_set_drvdata(pdev, NULL);
1281 free_netdev(netdev);
1286 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1289 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1290 struct net_device *netdev = adapter->netdev;
1292 netif_device_detach(netdev);
1294 if (netif_running(netdev))
1295 netxen_nic_down(adapter, netdev);
1297 cancel_work_sync(&adapter->watchdog_task);
1298 cancel_work_sync(&adapter->tx_timeout_task);
1300 netxen_nic_detach(adapter);
1302 pci_save_state(pdev);
1304 if (netxen_nic_wol_supported(adapter)) {
1305 pci_enable_wake(pdev, PCI_D3cold, 1);
1306 pci_enable_wake(pdev, PCI_D3hot, 1);
1309 pci_disable_device(pdev);
1310 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1316 netxen_nic_resume(struct pci_dev *pdev)
1318 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1319 struct net_device *netdev = adapter->netdev;
1322 pci_set_power_state(pdev, PCI_D0);
1323 pci_restore_state(pdev);
1325 err = pci_enable_device(pdev);
1329 adapter->curr_window = 255;
1331 err = netxen_start_firmware(adapter, 0);
1333 dev_err(&pdev->dev, "failed to start firmware\n");
1337 if (netif_running(netdev)) {
1338 err = netxen_nic_attach(adapter);
1342 err = netxen_nic_up(adapter, netdev);
1346 netif_device_attach(netdev);
1353 static int netxen_nic_open(struct net_device *netdev)
1355 struct netxen_adapter *adapter = netdev_priv(netdev);
1358 if (adapter->driver_mismatch)
1361 err = netxen_nic_attach(adapter);
1365 err = netxen_nic_up(adapter, netdev);
1369 netif_start_queue(netdev);
1374 netxen_nic_detach(adapter);
1379 * netxen_nic_close - Disables a network interface entry point
1381 static int netxen_nic_close(struct net_device *netdev)
1383 struct netxen_adapter *adapter = netdev_priv(netdev);
1385 netxen_nic_down(adapter, netdev);
1390 netxen_tso_check(struct net_device *netdev,
1391 struct nx_host_tx_ring *tx_ring,
1392 struct cmd_desc_type0 *first_desc,
1393 struct sk_buff *skb)
1395 u8 opcode = TX_ETHER_PKT;
1396 __be16 protocol = skb->protocol;
1397 u16 flags = 0, vid = 0;
1399 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1400 struct cmd_desc_type0 *hwdesc;
1401 struct vlan_ethhdr *vh;
1403 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1405 vh = (struct vlan_ethhdr *)skb->data;
1406 protocol = vh->h_vlan_encapsulated_proto;
1407 flags = FLAGS_VLAN_TAGGED;
1409 } else if (vlan_tx_tag_present(skb)) {
1411 flags = FLAGS_VLAN_OOB;
1412 vid = vlan_tx_tag_get(skb);
1413 netxen_set_tx_vlan_tci(first_desc, vid);
1417 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1418 skb_shinfo(skb)->gso_size > 0) {
1420 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1422 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1423 first_desc->total_hdr_length = hdr_len;
1425 first_desc->total_hdr_length += VLAN_HLEN;
1426 first_desc->tcp_hdr_offset = VLAN_HLEN;
1427 first_desc->ip_hdr_offset = VLAN_HLEN;
1428 /* Only in case of TSO on vlan device */
1429 flags |= FLAGS_VLAN_TAGGED;
1432 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1433 TX_TCP_LSO6 : TX_TCP_LSO;
1436 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1439 if (protocol == cpu_to_be16(ETH_P_IP)) {
1440 l4proto = ip_hdr(skb)->protocol;
1442 if (l4proto == IPPROTO_TCP)
1443 opcode = TX_TCP_PKT;
1444 else if(l4proto == IPPROTO_UDP)
1445 opcode = TX_UDP_PKT;
1446 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1447 l4proto = ipv6_hdr(skb)->nexthdr;
1449 if (l4proto == IPPROTO_TCP)
1450 opcode = TX_TCPV6_PKT;
1451 else if(l4proto == IPPROTO_UDP)
1452 opcode = TX_UDPV6_PKT;
1456 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1457 first_desc->ip_hdr_offset += skb_network_offset(skb);
1458 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1463 /* For LSO, we need to copy the MAC/IP/TCP headers into
1464 * the descriptor ring
1466 producer = tx_ring->producer;
1471 /* Create a TSO vlan header template for firmware */
1473 hwdesc = &tx_ring->desc_head[producer];
1474 tx_ring->cmd_buf_arr[producer].skb = NULL;
1476 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1477 hdr_len + VLAN_HLEN);
1479 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1480 skb_copy_from_linear_data(skb, vh, 12);
1481 vh->h_vlan_proto = htons(ETH_P_8021Q);
1482 vh->h_vlan_TCI = htons(vid);
1483 skb_copy_from_linear_data_offset(skb, 12,
1484 (char *)vh + 16, copy_len - 16);
1486 copied = copy_len - VLAN_HLEN;
1489 producer = get_next_index(producer, tx_ring->num_desc);
1492 while (copied < hdr_len) {
1494 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1495 (hdr_len - copied));
1497 hwdesc = &tx_ring->desc_head[producer];
1498 tx_ring->cmd_buf_arr[producer].skb = NULL;
1500 skb_copy_from_linear_data_offset(skb, copied,
1501 (char *)hwdesc + offset, copy_len);
1506 producer = get_next_index(producer, tx_ring->num_desc);
1509 tx_ring->producer = producer;
1514 netxen_clean_tx_dma_mapping(struct pci_dev *pdev,
1515 struct netxen_cmd_buffer *pbuf, int last)
1518 struct netxen_skb_frag *buffrag;
1520 buffrag = &pbuf->frag_array[0];
1521 pci_unmap_single(pdev, buffrag->dma,
1522 buffrag->length, PCI_DMA_TODEVICE);
1524 for (k = 1; k < last; k++) {
1525 buffrag = &pbuf->frag_array[k];
1526 pci_unmap_page(pdev, buffrag->dma,
1527 buffrag->length, PCI_DMA_TODEVICE);
1532 netxen_clear_cmddesc(u64 *desc)
1539 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1541 struct netxen_adapter *adapter = netdev_priv(netdev);
1542 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1543 struct skb_frag_struct *frag;
1544 struct netxen_cmd_buffer *pbuf;
1545 struct netxen_skb_frag *buffrag;
1546 struct cmd_desc_type0 *hwdesc, *first_desc;
1547 struct pci_dev *pdev;
1548 dma_addr_t temp_dma;
1550 unsigned long offset;
1553 int len, frag_count, no_of_desc;
1554 u32 num_txd = tx_ring->num_desc;
1556 frag_count = skb_shinfo(skb)->nr_frags + 1;
1558 /* 4 fragments per cmd des */
1559 no_of_desc = (frag_count + 3) >> 2;
1561 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
1562 netif_stop_queue(netdev);
1563 return NETDEV_TX_BUSY;
1566 producer = tx_ring->producer;
1568 pdev = adapter->pdev;
1569 len = skb->len - skb->data_len;
1571 temp_dma = pci_map_single(pdev, skb->data, len, PCI_DMA_TODEVICE);
1572 if (pci_dma_mapping_error(pdev, temp_dma))
1575 pbuf = &tx_ring->cmd_buf_arr[producer];
1577 pbuf->frag_count = frag_count;
1579 buffrag = &pbuf->frag_array[0];
1580 buffrag->dma = temp_dma;
1581 buffrag->length = len;
1583 first_desc = hwdesc = &tx_ring->desc_head[producer];
1584 netxen_clear_cmddesc((u64 *)hwdesc);
1585 netxen_set_tx_frags_len(hwdesc, frag_count, skb->len);
1586 netxen_set_tx_port(hwdesc, adapter->portnum);
1588 hwdesc->buffer_length[0] = cpu_to_le16(len);
1589 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1591 for (i = 1, k = 1; i < frag_count; i++, k++) {
1593 /* move to next desc. if there is a need */
1594 if ((i & 0x3) == 0) {
1596 producer = get_next_index(producer, num_txd);
1597 hwdesc = &tx_ring->desc_head[producer];
1598 netxen_clear_cmddesc((u64 *)hwdesc);
1599 pbuf = &tx_ring->cmd_buf_arr[producer];
1602 buffrag = &pbuf->frag_array[i];
1603 frag = &skb_shinfo(skb)->frags[i - 1];
1605 offset = frag->page_offset;
1607 temp_dma = pci_map_page(pdev, frag->page, offset,
1608 len, PCI_DMA_TODEVICE);
1609 if (pci_dma_mapping_error(pdev, temp_dma)) {
1610 netxen_clean_tx_dma_mapping(pdev, pbuf, i);
1614 buffrag->dma = temp_dma;
1615 buffrag->length = len;
1617 hwdesc->buffer_length[k] = cpu_to_le16(len);
1620 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1623 hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
1626 hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
1629 hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
1633 tx_ring->producer = get_next_index(producer, num_txd);
1635 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1637 netxen_nic_update_cmd_producer(adapter, tx_ring);
1639 adapter->stats.txbytes += skb->len;
1640 adapter->stats.xmitcalled++;
1642 return NETDEV_TX_OK;
1645 adapter->stats.txdropped++;
1646 dev_kfree_skb_any(skb);
1647 return NETDEV_TX_OK;
1650 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1652 struct net_device *netdev = adapter->netdev;
1653 uint32_t temp, temp_state, temp_val;
1656 temp = NXRD32(adapter, CRB_TEMP_STATE);
1658 temp_state = nx_get_temp_state(temp);
1659 temp_val = nx_get_temp_val(temp);
1661 if (temp_state == NX_TEMP_PANIC) {
1663 "%s: Device temperature %d degrees C exceeds"
1664 " maximum allowed. Hardware has been shut down.\n",
1665 netdev->name, temp_val);
1667 } else if (temp_state == NX_TEMP_WARN) {
1668 if (adapter->temp == NX_TEMP_NORMAL) {
1670 "%s: Device temperature %d degrees C "
1671 "exceeds operating range."
1672 " Immediate action needed.\n",
1673 netdev->name, temp_val);
1676 if (adapter->temp == NX_TEMP_WARN) {
1678 "%s: Device temperature is now %d degrees C"
1679 " in normal range.\n", netdev->name,
1683 adapter->temp = temp_state;
1687 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1689 struct net_device *netdev = adapter->netdev;
1691 if (adapter->ahw.linkup && !linkup) {
1692 printk(KERN_INFO "%s: %s NIC Link is down\n",
1693 netxen_nic_driver_name, netdev->name);
1694 adapter->ahw.linkup = 0;
1695 if (netif_running(netdev)) {
1696 netif_carrier_off(netdev);
1697 netif_stop_queue(netdev);
1699 adapter->link_changed = !adapter->has_link_events;
1700 } else if (!adapter->ahw.linkup && linkup) {
1701 printk(KERN_INFO "%s: %s NIC Link is up\n",
1702 netxen_nic_driver_name, netdev->name);
1703 adapter->ahw.linkup = 1;
1704 if (netif_running(netdev)) {
1705 netif_carrier_on(netdev);
1706 netif_wake_queue(netdev);
1708 adapter->link_changed = !adapter->has_link_events;
1712 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1714 u32 val, port, linkup;
1716 port = adapter->physical_port;
1718 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1719 val = NXRD32(adapter, CRB_XG_STATE_P3);
1720 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1721 linkup = (val == XG_LINK_UP_P3);
1723 val = NXRD32(adapter, CRB_XG_STATE);
1724 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1725 linkup = (val >> port) & 1;
1727 val = (val >> port*8) & 0xff;
1728 linkup = (val == XG_LINK_UP);
1732 netxen_advert_link_change(adapter, linkup);
1735 static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter)
1737 struct net_device *netdev = adapter->netdev;
1739 netif_device_detach(netdev);
1740 netxen_nic_down(adapter, netdev);
1741 netxen_nic_detach(adapter);
1744 static void netxen_watchdog(unsigned long v)
1746 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
1748 if (netxen_nic_check_temp(adapter))
1751 if (!adapter->has_link_events) {
1752 netxen_nic_handle_phy_intr(adapter);
1754 if (adapter->link_changed)
1758 if (netif_running(adapter->netdev))
1759 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1764 schedule_work(&adapter->watchdog_task);
1767 void netxen_watchdog_task(struct work_struct *work)
1769 struct netxen_adapter *adapter =
1770 container_of(work, struct netxen_adapter, watchdog_task);
1772 if (adapter->temp == NX_TEMP_PANIC) {
1773 netxen_nic_thermal_shutdown(adapter);
1777 if (adapter->link_changed)
1778 netxen_nic_set_link_parameters(adapter);
1780 if (netif_running(adapter->netdev))
1781 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1784 static void netxen_tx_timeout(struct net_device *netdev)
1786 struct netxen_adapter *adapter = netdev_priv(netdev);
1788 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1789 schedule_work(&adapter->tx_timeout_task);
1792 static void netxen_reset_task(struct work_struct *work)
1794 struct netxen_adapter *adapter =
1795 container_of(work, struct netxen_adapter, tx_timeout_task);
1797 if (!netif_running(adapter->netdev))
1800 netxen_napi_disable(adapter);
1802 adapter->netdev->trans_start = jiffies;
1804 netxen_napi_enable(adapter);
1805 netif_wake_queue(adapter->netdev);
1808 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1810 struct netxen_adapter *adapter = netdev_priv(netdev);
1811 struct net_device_stats *stats = &adapter->net_stats;
1813 memset(stats, 0, sizeof(*stats));
1815 stats->rx_packets = adapter->stats.no_rcv;
1816 stats->tx_packets = adapter->stats.xmitfinished;
1817 stats->rx_bytes = adapter->stats.rxbytes;
1818 stats->tx_bytes = adapter->stats.txbytes;
1819 stats->rx_dropped = adapter->stats.rxdropped;
1820 stats->tx_dropped = adapter->stats.txdropped;
1825 static irqreturn_t netxen_intr(int irq, void *data)
1827 struct nx_host_sds_ring *sds_ring = data;
1828 struct netxen_adapter *adapter = sds_ring->adapter;
1831 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1833 if (!(status & adapter->legacy_intr.int_vec_bit))
1836 if (adapter->ahw.revision_id >= NX_P3_B1) {
1837 /* check interrupt state machine, to be sure */
1838 status = adapter->pci_read_immediate(adapter,
1840 if (!ISR_LEGACY_INT_TRIGGERED(status))
1844 unsigned long our_int = 0;
1846 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1848 /* not our interrupt */
1849 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1852 /* claim interrupt */
1853 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1856 /* clear interrupt */
1857 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1858 netxen_nic_disable_int(sds_ring);
1860 adapter->pci_write_immediate(adapter,
1861 adapter->legacy_intr.tgt_status_reg,
1863 /* read twice to ensure write is flushed */
1864 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1865 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1867 napi_schedule(&sds_ring->napi);
1872 static irqreturn_t netxen_msi_intr(int irq, void *data)
1874 struct nx_host_sds_ring *sds_ring = data;
1875 struct netxen_adapter *adapter = sds_ring->adapter;
1877 /* clear interrupt */
1878 adapter->pci_write_immediate(adapter,
1879 adapter->msi_tgt_status, 0xffffffff);
1881 napi_schedule(&sds_ring->napi);
1885 static irqreturn_t netxen_msix_intr(int irq, void *data)
1887 struct nx_host_sds_ring *sds_ring = data;
1889 napi_schedule(&sds_ring->napi);
1893 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1895 struct nx_host_sds_ring *sds_ring =
1896 container_of(napi, struct nx_host_sds_ring, napi);
1898 struct netxen_adapter *adapter = sds_ring->adapter;
1903 tx_complete = netxen_process_cmd_ring(adapter);
1905 work_done = netxen_process_rcv_ring(sds_ring, budget);
1907 if ((work_done < budget) && tx_complete) {
1908 napi_complete(&sds_ring->napi);
1909 if (netif_running(adapter->netdev))
1910 netxen_nic_enable_int(sds_ring);
1916 #ifdef CONFIG_NET_POLL_CONTROLLER
1917 static void netxen_nic_poll_controller(struct net_device *netdev)
1919 struct netxen_adapter *adapter = netdev_priv(netdev);
1920 disable_irq(adapter->irq);
1921 netxen_intr(adapter->irq, adapter);
1922 enable_irq(adapter->irq);
1928 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
1931 netxen_destip_supported(struct netxen_adapter *adapter)
1933 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1936 if (adapter->ahw.cut_through)
1942 static int netxen_netdev_event(struct notifier_block *this,
1943 unsigned long event, void *ptr)
1945 struct netxen_adapter *adapter;
1946 struct net_device *dev = (struct net_device *)ptr;
1947 struct in_device *indev;
1953 if (dev->priv_flags & IFF_802_1Q_VLAN) {
1954 dev = vlan_dev_real_dev(dev);
1958 if (!is_netxen_netdev(dev))
1961 adapter = netdev_priv(dev);
1963 if (!adapter || !netxen_destip_supported(adapter))
1966 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1969 indev = in_dev_get(dev);
1976 netxen_config_ipaddr(adapter,
1977 ifa->ifa_address, NX_IP_UP);
1980 netxen_config_ipaddr(adapter,
1981 ifa->ifa_address, NX_IP_DOWN);
1986 } endfor_ifa(indev);
1994 netxen_inetaddr_event(struct notifier_block *this,
1995 unsigned long event, void *ptr)
1997 struct netxen_adapter *adapter;
1998 struct net_device *dev;
2000 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2002 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2005 if (dev == NULL || !netif_running(dev))
2008 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2009 dev = vlan_dev_real_dev(dev);
2013 if (!is_netxen_netdev(dev))
2016 adapter = netdev_priv(dev);
2018 if (!adapter || !netxen_destip_supported(adapter))
2021 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2026 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2029 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2039 static struct notifier_block netxen_netdev_cb = {
2040 .notifier_call = netxen_netdev_event,
2043 static struct notifier_block netxen_inetaddr_cb = {
2044 .notifier_call = netxen_inetaddr_event,
2048 static struct pci_driver netxen_driver = {
2049 .name = netxen_nic_driver_name,
2050 .id_table = netxen_pci_tbl,
2051 .probe = netxen_nic_probe,
2052 .remove = __devexit_p(netxen_nic_remove),
2054 .suspend = netxen_nic_suspend,
2055 .resume = netxen_nic_resume
2059 static int __init netxen_init_module(void)
2061 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2064 register_netdevice_notifier(&netxen_netdev_cb);
2065 register_inetaddr_notifier(&netxen_inetaddr_cb);
2068 return pci_register_driver(&netxen_driver);
2071 module_init(netxen_init_module);
2073 static void __exit netxen_exit_module(void)
2075 pci_unregister_driver(&netxen_driver);
2078 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2079 unregister_netdevice_notifier(&netxen_netdev_cb);
2083 module_exit(netxen_exit_module);