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"
37 #include <linux/dma-mapping.h>
38 #include <linux/if_vlan.h>
40 #include <linux/ipv6.h>
41 #include <linux/inetdevice.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 netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
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);
76 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
77 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
79 static irqreturn_t netxen_intr(int irq, void *data);
80 static irqreturn_t netxen_msi_intr(int irq, void *data);
81 static irqreturn_t netxen_msix_intr(int irq, void *data);
83 /* PCI Device ID Table */
84 #define ENTRY(device) \
85 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
86 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
88 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
89 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
90 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
91 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
92 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
93 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
94 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
95 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
96 ENTRY(PCI_DEVICE_ID_NX3031),
100 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
102 static uint32_t crb_cmd_producer[4] = {
103 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
104 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
108 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
109 struct nx_host_tx_ring *tx_ring)
111 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
113 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
114 netif_stop_queue(adapter->netdev);
119 static uint32_t crb_cmd_consumer[4] = {
120 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
121 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
125 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
126 struct nx_host_tx_ring *tx_ring)
128 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
131 static uint32_t msi_tgt_status[8] = {
132 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
133 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
134 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
135 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
138 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
140 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
142 struct netxen_adapter *adapter = sds_ring->adapter;
144 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
147 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
149 struct netxen_adapter *adapter = sds_ring->adapter;
151 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
153 if (!NETXEN_IS_MSI_FAMILY(adapter))
154 adapter->pci_write_immediate(adapter,
155 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
159 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
161 int size = sizeof(struct nx_host_sds_ring) * count;
163 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
165 return (recv_ctx->sds_rings == NULL);
169 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
171 if (recv_ctx->sds_rings != NULL)
172 kfree(recv_ctx->sds_rings);
174 recv_ctx->sds_rings = NULL;
178 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
181 struct nx_host_sds_ring *sds_ring;
182 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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_del(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 netif_napi_del(&sds_ring->napi);
208 netxen_free_sds_rings(&adapter->recv_ctx);
212 netxen_napi_enable(struct netxen_adapter *adapter)
215 struct nx_host_sds_ring *sds_ring;
216 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
218 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
219 sds_ring = &recv_ctx->sds_rings[ring];
220 napi_enable(&sds_ring->napi);
221 netxen_nic_enable_int(sds_ring);
226 netxen_napi_disable(struct netxen_adapter *adapter)
229 struct nx_host_sds_ring *sds_ring;
230 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
232 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
233 sds_ring = &recv_ctx->sds_rings[ring];
234 netxen_nic_disable_int(sds_ring);
235 napi_synchronize(&sds_ring->napi);
236 napi_disable(&sds_ring->napi);
240 static int nx_set_dma_mask(struct netxen_adapter *adapter)
242 struct pci_dev *pdev = adapter->pdev;
243 uint64_t mask, cmask;
245 adapter->pci_using_dac = 0;
247 mask = DMA_BIT_MASK(32);
248 cmask = DMA_BIT_MASK(32);
250 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
252 mask = DMA_BIT_MASK(35);
255 mask = DMA_BIT_MASK(39);
259 if (pci_set_dma_mask(pdev, mask) == 0 &&
260 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
261 adapter->pci_using_dac = 1;
268 /* Update addressable range if firmware supports it */
270 nx_update_dma_mask(struct netxen_adapter *adapter)
272 int change, shift, err;
273 uint64_t mask, old_mask, old_cmask;
274 struct pci_dev *pdev = adapter->pdev;
278 shift = NXRD32(adapter, CRB_DMA_SHIFT);
282 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
284 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
288 old_mask = pdev->dma_mask;
289 old_cmask = pdev->dev.coherent_dma_mask;
291 mask = DMA_BIT_MASK(32+shift);
293 err = pci_set_dma_mask(pdev, mask);
297 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
299 err = pci_set_consistent_dma_mask(pdev, mask);
303 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
309 pci_set_dma_mask(pdev, old_mask);
310 pci_set_consistent_dma_mask(pdev, old_cmask);
315 netxen_check_options(struct netxen_adapter *adapter)
317 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
318 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
319 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
320 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
321 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
322 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
325 adapter->msix_supported = 0;
326 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
327 adapter->msix_supported = !!use_msi_x;
328 adapter->rss_supported = !!use_msi_x;
329 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
330 switch (adapter->ahw.board_type) {
331 case NETXEN_BRDTYPE_P2_SB31_10G:
332 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
333 adapter->msix_supported = !!use_msi_x;
334 adapter->rss_supported = !!use_msi_x;
341 adapter->num_txd = MAX_CMD_DESCRIPTORS;
343 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
344 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
345 adapter->max_rds_rings = 3;
347 adapter->num_lro_rxd = 0;
348 adapter->max_rds_rings = 2;
353 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
357 if (first_boot == 0x55555555) {
358 /* This is the first boot after power up */
359 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
361 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
364 /* PCI bus master workaround */
365 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
366 if (!(first_boot & 0x4)) {
368 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
369 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
372 /* This is the first boot after power up */
373 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
374 if (first_boot != 0x80000f) {
375 /* clear the register for future unloads/loads */
376 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
380 /* Start P2 boot loader */
381 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
382 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
386 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
388 if (++timeout > 5000)
391 } while (val == NETXEN_BDINFO_MAGIC);
396 static void netxen_set_port_mode(struct netxen_adapter *adapter)
400 val = adapter->ahw.board_type;
401 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
402 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
403 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
404 data = NETXEN_PORT_MODE_802_3_AP;
405 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
406 } else if (port_mode == NETXEN_PORT_MODE_XG) {
407 data = NETXEN_PORT_MODE_XG;
408 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
409 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
410 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
411 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
412 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
413 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
414 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
416 data = NETXEN_PORT_MODE_AUTO_NEG;
417 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
420 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
421 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
422 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
423 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
424 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
426 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
430 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
435 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
437 pci_read_config_dword(pdev, pos, &control);
439 control |= PCI_MSIX_FLAGS_ENABLE;
442 pci_write_config_dword(pdev, pos, control);
446 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
450 for (i = 0; i < count; i++)
451 adapter->msix_entries[i].entry = i;
455 netxen_read_mac_addr(struct netxen_adapter *adapter)
460 struct net_device *netdev = adapter->netdev;
461 struct pci_dev *pdev = adapter->pdev;
463 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
464 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
467 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
471 p = (unsigned char *)&mac_addr;
472 for (i = 0; i < 6; i++)
473 netdev->dev_addr[i] = *(p + 5 - i);
475 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
477 /* set station address */
479 if (!is_valid_ether_addr(netdev->perm_addr))
480 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
485 int netxen_nic_set_mac(struct net_device *netdev, void *p)
487 struct netxen_adapter *adapter = netdev_priv(netdev);
488 struct sockaddr *addr = p;
490 if (!is_valid_ether_addr(addr->sa_data))
493 if (netif_running(netdev)) {
494 netif_device_detach(netdev);
495 netxen_napi_disable(adapter);
498 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
499 adapter->macaddr_set(adapter, addr->sa_data);
501 if (netif_running(netdev)) {
502 netif_device_attach(netdev);
503 netxen_napi_enable(adapter);
508 static void netxen_set_multicast_list(struct net_device *dev)
510 struct netxen_adapter *adapter = netdev_priv(dev);
512 adapter->set_multi(dev);
515 static const struct net_device_ops netxen_netdev_ops = {
516 .ndo_open = netxen_nic_open,
517 .ndo_stop = netxen_nic_close,
518 .ndo_start_xmit = netxen_nic_xmit_frame,
519 .ndo_get_stats = netxen_nic_get_stats,
520 .ndo_validate_addr = eth_validate_addr,
521 .ndo_set_multicast_list = netxen_set_multicast_list,
522 .ndo_set_mac_address = netxen_nic_set_mac,
523 .ndo_change_mtu = netxen_nic_change_mtu,
524 .ndo_tx_timeout = netxen_tx_timeout,
525 #ifdef CONFIG_NET_POLL_CONTROLLER
526 .ndo_poll_controller = netxen_nic_poll_controller,
531 netxen_setup_intr(struct netxen_adapter *adapter)
533 struct netxen_legacy_intr_set *legacy_intrp;
534 struct pci_dev *pdev = adapter->pdev;
537 if (adapter->rss_supported) {
538 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
539 MSIX_ENTRIES_PER_ADAPTER : 2;
543 adapter->max_sds_rings = 1;
545 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
547 if (adapter->ahw.revision_id >= NX_P3_B0)
548 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
550 legacy_intrp = &legacy_intr[0];
551 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
552 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
553 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
554 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
556 netxen_set_msix_bit(pdev, 0);
558 if (adapter->msix_supported) {
560 netxen_init_msix_entries(adapter, num_msix);
561 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
563 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
564 netxen_set_msix_bit(pdev, 1);
566 if (adapter->rss_supported)
567 adapter->max_sds_rings = num_msix;
569 dev_info(&pdev->dev, "using msi-x interrupts\n");
574 pci_disable_msix(pdev);
576 /* fall through for msi */
579 if (use_msi && !pci_enable_msi(pdev)) {
580 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
581 adapter->msi_tgt_status =
582 msi_tgt_status[adapter->ahw.pci_func];
583 dev_info(&pdev->dev, "using msi interrupts\n");
584 adapter->msix_entries[0].vector = pdev->irq;
588 dev_info(&pdev->dev, "using legacy interrupts\n");
589 adapter->msix_entries[0].vector = pdev->irq;
593 netxen_teardown_intr(struct netxen_adapter *adapter)
595 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
596 pci_disable_msix(adapter->pdev);
597 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
598 pci_disable_msi(adapter->pdev);
602 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
604 if (adapter->ahw.db_base != NULL)
605 iounmap(adapter->ahw.db_base);
606 if (adapter->ahw.pci_base0 != NULL)
607 iounmap(adapter->ahw.pci_base0);
608 if (adapter->ahw.pci_base1 != NULL)
609 iounmap(adapter->ahw.pci_base1);
610 if (adapter->ahw.pci_base2 != NULL)
611 iounmap(adapter->ahw.pci_base2);
615 netxen_setup_pci_map(struct netxen_adapter *adapter)
617 void __iomem *mem_ptr0 = NULL;
618 void __iomem *mem_ptr1 = NULL;
619 void __iomem *mem_ptr2 = NULL;
620 void __iomem *db_ptr = NULL;
622 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
624 struct pci_dev *pdev = adapter->pdev;
625 int pci_func = adapter->ahw.pci_func;
630 * Set the CRB window to invalid. If any register in window 0 is
631 * accessed it should set the window to 0 and then reset it to 1.
633 adapter->curr_window = 255;
634 adapter->ahw.qdr_sn_window = -1;
635 adapter->ahw.ddr_mn_window = -1;
637 /* remap phys address */
638 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
639 mem_len = pci_resource_len(pdev, 0);
642 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
643 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
644 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
645 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
646 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
647 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
648 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
650 /* 128 Meg of memory */
651 if (mem_len == NETXEN_PCI_128MB_SIZE) {
652 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
653 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
654 SECOND_PAGE_GROUP_SIZE);
655 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
656 THIRD_PAGE_GROUP_SIZE);
657 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
658 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
659 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
660 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
661 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
662 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
663 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
664 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
665 adapter->pci_write_immediate =
666 netxen_nic_pci_write_immediate_2M;
667 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
668 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
669 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
671 mem_ptr0 = pci_ioremap_bar(pdev, 0);
672 if (mem_ptr0 == NULL) {
673 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
678 adapter->ahw.ddr_mn_window = 0;
679 adapter->ahw.qdr_sn_window = 0;
681 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
683 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
685 adapter->ahw.ms_win_crb += (pci_func * 0x20);
687 adapter->ahw.ms_win_crb +=
688 0xA0 + ((pci_func - 4) * 0x10);
693 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
695 adapter->ahw.pci_base0 = mem_ptr0;
696 adapter->ahw.pci_len0 = pci_len0;
697 adapter->ahw.pci_base1 = mem_ptr1;
698 adapter->ahw.pci_base2 = mem_ptr2;
700 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
703 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
704 db_len = pci_resource_len(pdev, 4);
707 printk(KERN_ERR "%s: doorbell is disabled\n",
708 netxen_nic_driver_name);
713 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
715 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
716 netxen_nic_driver_name);
722 adapter->ahw.db_base = db_ptr;
723 adapter->ahw.db_len = db_len;
727 netxen_cleanup_pci_map(adapter);
732 netxen_start_firmware(struct netxen_adapter *adapter, int request_fw)
734 int val, err, first_boot;
735 struct pci_dev *pdev = adapter->pdev;
737 int first_driver = 0;
739 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
740 first_driver = (adapter->portnum == 0);
742 first_driver = (adapter->ahw.pci_func == 0);
747 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
749 err = netxen_check_hw_init(adapter, first_boot);
751 dev_err(&pdev->dev, "error in init HW init sequence\n");
756 netxen_request_firmware(adapter);
758 err = netxen_need_fw_reset(adapter);
764 if (first_boot != 0x55555555) {
765 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
766 netxen_pinit_from_rom(adapter, 0);
770 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
771 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
772 netxen_set_port_mode(adapter);
774 err = netxen_load_firmware(adapter);
778 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
780 /* Initialize multicast addr pool owners */
782 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
784 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
788 err = netxen_init_dummy_dma(adapter);
793 * Tell the hardware our version number.
795 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
796 | ((_NETXEN_NIC_LINUX_MINOR << 8))
797 | (_NETXEN_NIC_LINUX_SUBVERSION);
798 NXWR32(adapter, CRB_DRIVER_VERSION, val);
801 /* Handshake with the card before we register the devices. */
802 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
804 netxen_free_dummy_dma(adapter);
808 nx_update_dma_mask(adapter);
810 netxen_nic_get_firmware_info(adapter);
815 netxen_release_firmware(adapter);
820 netxen_nic_request_irq(struct netxen_adapter *adapter)
822 irq_handler_t handler;
823 struct nx_host_sds_ring *sds_ring;
826 unsigned long flags = IRQF_SAMPLE_RANDOM;
827 struct net_device *netdev = adapter->netdev;
828 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
830 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
831 handler = netxen_msix_intr;
832 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
833 handler = netxen_msi_intr;
835 flags |= IRQF_SHARED;
836 handler = netxen_intr;
838 adapter->irq = netdev->irq;
840 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
841 sds_ring = &recv_ctx->sds_rings[ring];
842 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
843 err = request_irq(sds_ring->irq, handler,
844 flags, sds_ring->name, sds_ring);
853 netxen_nic_free_irq(struct netxen_adapter *adapter)
856 struct nx_host_sds_ring *sds_ring;
858 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
860 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
861 sds_ring = &recv_ctx->sds_rings[ring];
862 free_irq(sds_ring->irq, sds_ring);
867 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
869 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
870 adapter->coal.normal.data.rx_time_us =
871 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
872 adapter->coal.normal.data.rx_packets =
873 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
874 adapter->coal.normal.data.tx_time_us =
875 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
876 adapter->coal.normal.data.tx_packets =
877 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
881 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
885 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
888 err = adapter->init_port(adapter, adapter->physical_port);
890 printk(KERN_ERR "%s: Failed to initialize port %d\n",
891 netxen_nic_driver_name, adapter->portnum);
894 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
895 adapter->macaddr_set(adapter, netdev->dev_addr);
897 adapter->set_multi(netdev);
898 adapter->set_mtu(adapter, netdev->mtu);
900 adapter->ahw.linkup = 0;
902 if (adapter->max_sds_rings > 1)
903 netxen_config_rss(adapter, 1);
905 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
906 netxen_config_intr_coalesce(adapter);
908 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
909 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
911 netxen_napi_enable(adapter);
913 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
914 netxen_linkevent_request(adapter, 1);
916 netxen_nic_set_link_parameters(adapter);
918 mod_timer(&adapter->watchdog_timer, jiffies);
924 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
926 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
929 spin_lock(&adapter->tx_clean_lock);
930 netif_carrier_off(netdev);
931 netif_tx_disable(netdev);
933 if (adapter->stop_port)
934 adapter->stop_port(adapter);
936 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
937 netxen_p3_free_mac_list(adapter);
939 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
941 netxen_napi_disable(adapter);
943 netxen_release_tx_buffers(adapter);
944 spin_unlock(&adapter->tx_clean_lock);
946 del_timer_sync(&adapter->watchdog_timer);
951 netxen_nic_attach(struct netxen_adapter *adapter)
953 struct net_device *netdev = adapter->netdev;
954 struct pci_dev *pdev = adapter->pdev;
956 struct nx_host_rds_ring *rds_ring;
957 struct nx_host_tx_ring *tx_ring;
959 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
962 err = netxen_init_firmware(adapter);
966 err = netxen_napi_add(adapter, netdev);
970 err = netxen_alloc_sw_resources(adapter);
972 printk(KERN_ERR "%s: Error in setting sw resources\n",
977 netxen_nic_clear_stats(adapter);
979 err = netxen_alloc_hw_resources(adapter);
981 printk(KERN_ERR "%s: Error in setting hw resources\n",
983 goto err_out_free_sw;
986 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
987 tx_ring = adapter->tx_ring;
988 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
989 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
991 tx_ring->producer = 0;
992 tx_ring->sw_consumer = 0;
994 netxen_nic_update_cmd_producer(adapter, tx_ring);
995 netxen_nic_update_cmd_consumer(adapter, tx_ring);
998 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
999 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1000 netxen_post_rx_buffers(adapter, ring, rds_ring);
1003 err = netxen_nic_request_irq(adapter);
1005 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1007 goto err_out_free_rxbuf;
1010 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1011 netxen_nic_init_coalesce_defaults(adapter);
1013 netxen_create_sysfs_entries(adapter);
1015 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1019 netxen_release_rx_buffers(adapter);
1020 netxen_free_hw_resources(adapter);
1022 netxen_free_sw_resources(adapter);
1027 netxen_nic_detach(struct netxen_adapter *adapter)
1029 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1032 netxen_remove_sysfs_entries(adapter);
1034 netxen_free_hw_resources(adapter);
1035 netxen_release_rx_buffers(adapter);
1036 netxen_nic_free_irq(adapter);
1037 netxen_napi_del(adapter);
1038 netxen_free_sw_resources(adapter);
1044 netxen_nic_reset_context(struct netxen_adapter *adapter)
1047 struct net_device *netdev = adapter->netdev;
1049 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1051 if (netif_running(netdev))
1052 netxen_nic_down(adapter, netdev);
1054 netxen_nic_detach(adapter);
1056 err = netxen_nic_attach(adapter);
1060 if (netif_running(netdev))
1061 err = netxen_nic_up(adapter, netdev);
1068 netxen_setup_netdev(struct netxen_adapter *adapter,
1069 struct net_device *netdev)
1072 struct pci_dev *pdev = adapter->pdev;
1074 adapter->rx_csum = 1;
1075 adapter->mc_enabled = 0;
1076 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1077 adapter->max_mc_count = 38;
1079 adapter->max_mc_count = 16;
1081 netdev->netdev_ops = &netxen_netdev_ops;
1082 netdev->watchdog_timeo = 2*HZ;
1084 netxen_nic_change_mtu(netdev, netdev->mtu);
1086 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1088 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1089 netdev->features |= (NETIF_F_GRO);
1090 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1092 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1093 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1094 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1097 if (adapter->pci_using_dac) {
1098 netdev->features |= NETIF_F_HIGHDMA;
1099 netdev->vlan_features |= NETIF_F_HIGHDMA;
1102 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1103 netdev->features |= (NETIF_F_HW_VLAN_TX);
1105 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1106 netdev->features |= NETIF_F_LRO;
1108 netdev->irq = adapter->msix_entries[0].vector;
1110 init_timer(&adapter->watchdog_timer);
1111 adapter->watchdog_timer.function = &netxen_watchdog;
1112 adapter->watchdog_timer.data = (unsigned long)adapter;
1113 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1114 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1116 if (netxen_read_mac_addr(adapter))
1117 dev_warn(&pdev->dev, "failed to read mac addr\n");
1119 netif_carrier_off(netdev);
1120 netif_stop_queue(netdev);
1122 err = register_netdev(netdev);
1124 dev_err(&pdev->dev, "failed to register net device\n");
1131 static int __devinit
1132 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1134 struct net_device *netdev = NULL;
1135 struct netxen_adapter *adapter = NULL;
1137 int pci_func_id = PCI_FUNC(pdev->devfn);
1138 uint8_t revision_id;
1140 if (pdev->class != 0x020000) {
1141 printk(KERN_DEBUG "NetXen function %d, class %x will not "
1142 "be enabled.\n",pci_func_id, pdev->class);
1146 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1147 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1148 "will not be enabled.\n",
1149 NX_P3_A0, NX_P3_B1);
1153 if ((err = pci_enable_device(pdev)))
1156 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1158 goto err_out_disable_pdev;
1161 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1162 goto err_out_disable_pdev;
1164 pci_set_master(pdev);
1166 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1168 dev_err(&pdev->dev, "failed to allocate net_device\n");
1170 goto err_out_free_res;
1173 SET_NETDEV_DEV(netdev, &pdev->dev);
1175 adapter = netdev_priv(netdev);
1176 adapter->netdev = netdev;
1177 adapter->pdev = pdev;
1178 adapter->ahw.pci_func = pci_func_id;
1180 revision_id = pdev->revision;
1181 adapter->ahw.revision_id = revision_id;
1183 err = nx_set_dma_mask(adapter);
1185 goto err_out_free_netdev;
1187 rwlock_init(&adapter->adapter_lock);
1188 spin_lock_init(&adapter->tx_clean_lock);
1189 INIT_LIST_HEAD(&adapter->mac_list);
1191 err = netxen_setup_pci_map(adapter);
1193 goto err_out_free_netdev;
1195 /* This will be reset for mezz cards */
1196 adapter->portnum = pci_func_id;
1198 err = netxen_nic_get_board_info(adapter);
1200 dev_err(&pdev->dev, "Error getting board config info.\n");
1201 goto err_out_iounmap;
1204 netxen_initialize_adapter_ops(adapter);
1206 /* Mezz cards have PCI function 0,2,3 enabled */
1207 switch (adapter->ahw.board_type) {
1208 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1209 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1210 if (pci_func_id >= 2)
1211 adapter->portnum = pci_func_id - 2;
1217 err = netxen_start_firmware(adapter, 1);
1219 goto err_out_iounmap;
1222 * See if the firmware gave us a virtual-physical port mapping.
1224 adapter->physical_port = adapter->portnum;
1225 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1226 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1227 if (i != 0x55555555)
1228 adapter->physical_port = i;
1231 netxen_check_options(adapter);
1233 netxen_setup_intr(adapter);
1235 err = netxen_setup_netdev(adapter, netdev);
1237 goto err_out_disable_msi;
1239 pci_set_drvdata(pdev, adapter);
1241 switch (adapter->ahw.port_type) {
1242 case NETXEN_NIC_GBE:
1243 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1244 adapter->netdev->name);
1246 case NETXEN_NIC_XGBE:
1247 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1248 adapter->netdev->name);
1254 err_out_disable_msi:
1255 netxen_teardown_intr(adapter);
1257 netxen_free_dummy_dma(adapter);
1260 netxen_cleanup_pci_map(adapter);
1262 err_out_free_netdev:
1263 free_netdev(netdev);
1266 pci_release_regions(pdev);
1268 err_out_disable_pdev:
1269 pci_set_drvdata(pdev, NULL);
1270 pci_disable_device(pdev);
1274 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1276 struct netxen_adapter *adapter;
1277 struct net_device *netdev;
1279 adapter = pci_get_drvdata(pdev);
1280 if (adapter == NULL)
1283 netdev = adapter->netdev;
1285 unregister_netdev(netdev);
1287 cancel_work_sync(&adapter->watchdog_task);
1288 cancel_work_sync(&adapter->tx_timeout_task);
1290 netxen_nic_detach(adapter);
1292 if (adapter->portnum == 0)
1293 netxen_free_dummy_dma(adapter);
1295 netxen_teardown_intr(adapter);
1297 netxen_cleanup_pci_map(adapter);
1299 netxen_release_firmware(adapter);
1301 pci_release_regions(pdev);
1302 pci_disable_device(pdev);
1303 pci_set_drvdata(pdev, NULL);
1305 free_netdev(netdev);
1307 static int __netxen_nic_shutdown(struct pci_dev *pdev)
1309 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1310 struct net_device *netdev = adapter->netdev;
1313 netif_device_detach(netdev);
1315 if (netif_running(netdev))
1316 netxen_nic_down(adapter, netdev);
1318 cancel_work_sync(&adapter->watchdog_task);
1319 cancel_work_sync(&adapter->tx_timeout_task);
1321 netxen_nic_detach(adapter);
1323 if (adapter->portnum == 0)
1324 netxen_free_dummy_dma(adapter);
1326 retval = pci_save_state(pdev);
1330 if (netxen_nic_wol_supported(adapter)) {
1331 pci_enable_wake(pdev, PCI_D3cold, 1);
1332 pci_enable_wake(pdev, PCI_D3hot, 1);
1335 pci_disable_device(pdev);
1339 static void netxen_nic_shutdown(struct pci_dev *pdev)
1341 if (__netxen_nic_shutdown(pdev))
1346 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1350 retval = __netxen_nic_shutdown(pdev);
1354 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1359 netxen_nic_resume(struct pci_dev *pdev)
1361 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1362 struct net_device *netdev = adapter->netdev;
1365 pci_set_power_state(pdev, PCI_D0);
1366 pci_restore_state(pdev);
1368 err = pci_enable_device(pdev);
1372 adapter->curr_window = 255;
1374 err = netxen_start_firmware(adapter, 0);
1376 dev_err(&pdev->dev, "failed to start firmware\n");
1380 if (netif_running(netdev)) {
1381 err = netxen_nic_attach(adapter);
1385 err = netxen_nic_up(adapter, netdev);
1389 netif_device_attach(netdev);
1396 static int netxen_nic_open(struct net_device *netdev)
1398 struct netxen_adapter *adapter = netdev_priv(netdev);
1401 if (adapter->driver_mismatch)
1404 err = netxen_nic_attach(adapter);
1408 err = netxen_nic_up(adapter, netdev);
1412 netif_start_queue(netdev);
1417 netxen_nic_detach(adapter);
1422 * netxen_nic_close - Disables a network interface entry point
1424 static int netxen_nic_close(struct net_device *netdev)
1426 struct netxen_adapter *adapter = netdev_priv(netdev);
1428 netxen_nic_down(adapter, netdev);
1433 netxen_tso_check(struct net_device *netdev,
1434 struct nx_host_tx_ring *tx_ring,
1435 struct cmd_desc_type0 *first_desc,
1436 struct sk_buff *skb)
1438 u8 opcode = TX_ETHER_PKT;
1439 __be16 protocol = skb->protocol;
1440 u16 flags = 0, vid = 0;
1442 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1443 struct cmd_desc_type0 *hwdesc;
1444 struct vlan_ethhdr *vh;
1446 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1448 vh = (struct vlan_ethhdr *)skb->data;
1449 protocol = vh->h_vlan_encapsulated_proto;
1450 flags = FLAGS_VLAN_TAGGED;
1452 } else if (vlan_tx_tag_present(skb)) {
1454 flags = FLAGS_VLAN_OOB;
1455 vid = vlan_tx_tag_get(skb);
1456 netxen_set_tx_vlan_tci(first_desc, vid);
1460 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1461 skb_shinfo(skb)->gso_size > 0) {
1463 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1465 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1466 first_desc->total_hdr_length = hdr_len;
1468 first_desc->total_hdr_length += VLAN_HLEN;
1469 first_desc->tcp_hdr_offset = VLAN_HLEN;
1470 first_desc->ip_hdr_offset = VLAN_HLEN;
1471 /* Only in case of TSO on vlan device */
1472 flags |= FLAGS_VLAN_TAGGED;
1475 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1476 TX_TCP_LSO6 : TX_TCP_LSO;
1479 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1482 if (protocol == cpu_to_be16(ETH_P_IP)) {
1483 l4proto = ip_hdr(skb)->protocol;
1485 if (l4proto == IPPROTO_TCP)
1486 opcode = TX_TCP_PKT;
1487 else if(l4proto == IPPROTO_UDP)
1488 opcode = TX_UDP_PKT;
1489 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1490 l4proto = ipv6_hdr(skb)->nexthdr;
1492 if (l4proto == IPPROTO_TCP)
1493 opcode = TX_TCPV6_PKT;
1494 else if(l4proto == IPPROTO_UDP)
1495 opcode = TX_UDPV6_PKT;
1499 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1500 first_desc->ip_hdr_offset += skb_network_offset(skb);
1501 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1506 /* For LSO, we need to copy the MAC/IP/TCP headers into
1507 * the descriptor ring
1509 producer = tx_ring->producer;
1514 /* Create a TSO vlan header template for firmware */
1516 hwdesc = &tx_ring->desc_head[producer];
1517 tx_ring->cmd_buf_arr[producer].skb = NULL;
1519 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1520 hdr_len + VLAN_HLEN);
1522 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1523 skb_copy_from_linear_data(skb, vh, 12);
1524 vh->h_vlan_proto = htons(ETH_P_8021Q);
1525 vh->h_vlan_TCI = htons(vid);
1526 skb_copy_from_linear_data_offset(skb, 12,
1527 (char *)vh + 16, copy_len - 16);
1529 copied = copy_len - VLAN_HLEN;
1532 producer = get_next_index(producer, tx_ring->num_desc);
1535 while (copied < hdr_len) {
1537 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1538 (hdr_len - copied));
1540 hwdesc = &tx_ring->desc_head[producer];
1541 tx_ring->cmd_buf_arr[producer].skb = NULL;
1543 skb_copy_from_linear_data_offset(skb, copied,
1544 (char *)hwdesc + offset, copy_len);
1549 producer = get_next_index(producer, tx_ring->num_desc);
1552 tx_ring->producer = producer;
1557 netxen_map_tx_skb(struct pci_dev *pdev,
1558 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1560 struct netxen_skb_frag *nf;
1561 struct skb_frag_struct *frag;
1565 nr_frags = skb_shinfo(skb)->nr_frags;
1566 nf = &pbuf->frag_array[0];
1568 map = pci_map_single(pdev, skb->data,
1569 skb_headlen(skb), PCI_DMA_TODEVICE);
1570 if (pci_dma_mapping_error(pdev, map))
1574 nf->length = skb_headlen(skb);
1576 for (i = 0; i < nr_frags; i++) {
1577 frag = &skb_shinfo(skb)->frags[i];
1578 nf = &pbuf->frag_array[i+1];
1580 map = pci_map_page(pdev, frag->page, frag->page_offset,
1581 frag->size, PCI_DMA_TODEVICE);
1582 if (pci_dma_mapping_error(pdev, map))
1586 nf->length = frag->size;
1593 nf = &pbuf->frag_array[i+1];
1594 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1597 nf = &pbuf->frag_array[0];
1598 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1605 netxen_clear_cmddesc(u64 *desc)
1612 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1614 struct netxen_adapter *adapter = netdev_priv(netdev);
1615 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1616 struct netxen_cmd_buffer *pbuf;
1617 struct netxen_skb_frag *buffrag;
1618 struct cmd_desc_type0 *hwdesc, *first_desc;
1619 struct pci_dev *pdev;
1623 int frag_count, no_of_desc;
1624 u32 num_txd = tx_ring->num_desc;
1626 frag_count = skb_shinfo(skb)->nr_frags + 1;
1628 /* 4 fragments per cmd des */
1629 no_of_desc = (frag_count + 3) >> 2;
1631 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
1632 netif_stop_queue(netdev);
1633 return NETDEV_TX_BUSY;
1636 producer = tx_ring->producer;
1637 pbuf = &tx_ring->cmd_buf_arr[producer];
1639 pdev = adapter->pdev;
1641 if (netxen_map_tx_skb(pdev, skb, pbuf))
1645 pbuf->frag_count = frag_count;
1647 first_desc = hwdesc = &tx_ring->desc_head[producer];
1648 netxen_clear_cmddesc((u64 *)hwdesc);
1650 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1651 netxen_set_tx_port(first_desc, adapter->portnum);
1653 for (i = 0; i < frag_count; i++) {
1657 if ((k == 0) && (i > 0)) {
1658 /* move to next desc.*/
1659 producer = get_next_index(producer, num_txd);
1660 hwdesc = &tx_ring->desc_head[producer];
1661 netxen_clear_cmddesc((u64 *)hwdesc);
1662 tx_ring->cmd_buf_arr[producer].skb = NULL;
1665 buffrag = &pbuf->frag_array[i];
1667 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1670 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1673 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1676 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1679 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1684 tx_ring->producer = get_next_index(producer, num_txd);
1686 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1688 netxen_nic_update_cmd_producer(adapter, tx_ring);
1690 adapter->stats.txbytes += skb->len;
1691 adapter->stats.xmitcalled++;
1693 return NETDEV_TX_OK;
1696 adapter->stats.txdropped++;
1697 dev_kfree_skb_any(skb);
1698 return NETDEV_TX_OK;
1701 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1703 struct net_device *netdev = adapter->netdev;
1704 uint32_t temp, temp_state, temp_val;
1707 temp = NXRD32(adapter, CRB_TEMP_STATE);
1709 temp_state = nx_get_temp_state(temp);
1710 temp_val = nx_get_temp_val(temp);
1712 if (temp_state == NX_TEMP_PANIC) {
1714 "%s: Device temperature %d degrees C exceeds"
1715 " maximum allowed. Hardware has been shut down.\n",
1716 netdev->name, temp_val);
1718 } else if (temp_state == NX_TEMP_WARN) {
1719 if (adapter->temp == NX_TEMP_NORMAL) {
1721 "%s: Device temperature %d degrees C "
1722 "exceeds operating range."
1723 " Immediate action needed.\n",
1724 netdev->name, temp_val);
1727 if (adapter->temp == NX_TEMP_WARN) {
1729 "%s: Device temperature is now %d degrees C"
1730 " in normal range.\n", netdev->name,
1734 adapter->temp = temp_state;
1738 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1740 struct net_device *netdev = adapter->netdev;
1742 if (adapter->ahw.linkup && !linkup) {
1743 printk(KERN_INFO "%s: %s NIC Link is down\n",
1744 netxen_nic_driver_name, netdev->name);
1745 adapter->ahw.linkup = 0;
1746 if (netif_running(netdev)) {
1747 netif_carrier_off(netdev);
1748 netif_stop_queue(netdev);
1750 adapter->link_changed = !adapter->has_link_events;
1751 } else if (!adapter->ahw.linkup && linkup) {
1752 printk(KERN_INFO "%s: %s NIC Link is up\n",
1753 netxen_nic_driver_name, netdev->name);
1754 adapter->ahw.linkup = 1;
1755 if (netif_running(netdev)) {
1756 netif_carrier_on(netdev);
1757 netif_wake_queue(netdev);
1759 adapter->link_changed = !adapter->has_link_events;
1763 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1765 u32 val, port, linkup;
1767 port = adapter->physical_port;
1769 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1770 val = NXRD32(adapter, CRB_XG_STATE_P3);
1771 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1772 linkup = (val == XG_LINK_UP_P3);
1774 val = NXRD32(adapter, CRB_XG_STATE);
1775 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1776 linkup = (val >> port) & 1;
1778 val = (val >> port*8) & 0xff;
1779 linkup = (val == XG_LINK_UP);
1783 netxen_advert_link_change(adapter, linkup);
1786 static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter)
1788 struct net_device *netdev = adapter->netdev;
1790 netif_device_detach(netdev);
1791 netxen_nic_down(adapter, netdev);
1792 netxen_nic_detach(adapter);
1795 static void netxen_watchdog(unsigned long v)
1797 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
1799 if (netxen_nic_check_temp(adapter))
1802 if (!adapter->has_link_events) {
1803 netxen_nic_handle_phy_intr(adapter);
1805 if (adapter->link_changed)
1809 if (netif_running(adapter->netdev))
1810 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1815 schedule_work(&adapter->watchdog_task);
1818 void netxen_watchdog_task(struct work_struct *work)
1820 struct netxen_adapter *adapter =
1821 container_of(work, struct netxen_adapter, watchdog_task);
1823 if (adapter->temp == NX_TEMP_PANIC) {
1824 netxen_nic_thermal_shutdown(adapter);
1828 if (adapter->link_changed)
1829 netxen_nic_set_link_parameters(adapter);
1831 if (netif_running(adapter->netdev))
1832 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1835 static void netxen_tx_timeout(struct net_device *netdev)
1837 struct netxen_adapter *adapter = netdev_priv(netdev);
1839 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1840 schedule_work(&adapter->tx_timeout_task);
1843 static void netxen_reset_task(struct work_struct *work)
1845 struct netxen_adapter *adapter =
1846 container_of(work, struct netxen_adapter, tx_timeout_task);
1848 if (!netif_running(adapter->netdev))
1851 netxen_napi_disable(adapter);
1853 adapter->netdev->trans_start = jiffies;
1855 netxen_napi_enable(adapter);
1856 netif_wake_queue(adapter->netdev);
1859 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1861 struct netxen_adapter *adapter = netdev_priv(netdev);
1862 struct net_device_stats *stats = &adapter->net_stats;
1864 memset(stats, 0, sizeof(*stats));
1866 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1867 stats->tx_packets = adapter->stats.xmitfinished;
1868 stats->rx_bytes = adapter->stats.rxbytes;
1869 stats->tx_bytes = adapter->stats.txbytes;
1870 stats->rx_dropped = adapter->stats.rxdropped;
1871 stats->tx_dropped = adapter->stats.txdropped;
1876 static irqreturn_t netxen_intr(int irq, void *data)
1878 struct nx_host_sds_ring *sds_ring = data;
1879 struct netxen_adapter *adapter = sds_ring->adapter;
1882 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1884 if (!(status & adapter->legacy_intr.int_vec_bit))
1887 if (adapter->ahw.revision_id >= NX_P3_B1) {
1888 /* check interrupt state machine, to be sure */
1889 status = adapter->pci_read_immediate(adapter,
1891 if (!ISR_LEGACY_INT_TRIGGERED(status))
1895 unsigned long our_int = 0;
1897 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1899 /* not our interrupt */
1900 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1903 /* claim interrupt */
1904 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1907 /* clear interrupt */
1908 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1909 netxen_nic_disable_int(sds_ring);
1911 adapter->pci_write_immediate(adapter,
1912 adapter->legacy_intr.tgt_status_reg,
1914 /* read twice to ensure write is flushed */
1915 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1916 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1918 napi_schedule(&sds_ring->napi);
1923 static irqreturn_t netxen_msi_intr(int irq, void *data)
1925 struct nx_host_sds_ring *sds_ring = data;
1926 struct netxen_adapter *adapter = sds_ring->adapter;
1928 /* clear interrupt */
1929 adapter->pci_write_immediate(adapter,
1930 adapter->msi_tgt_status, 0xffffffff);
1932 napi_schedule(&sds_ring->napi);
1936 static irqreturn_t netxen_msix_intr(int irq, void *data)
1938 struct nx_host_sds_ring *sds_ring = data;
1940 napi_schedule(&sds_ring->napi);
1944 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1946 struct nx_host_sds_ring *sds_ring =
1947 container_of(napi, struct nx_host_sds_ring, napi);
1949 struct netxen_adapter *adapter = sds_ring->adapter;
1954 tx_complete = netxen_process_cmd_ring(adapter);
1956 work_done = netxen_process_rcv_ring(sds_ring, budget);
1958 if ((work_done < budget) && tx_complete) {
1959 napi_complete(&sds_ring->napi);
1960 if (netif_running(adapter->netdev))
1961 netxen_nic_enable_int(sds_ring);
1967 #ifdef CONFIG_NET_POLL_CONTROLLER
1968 static void netxen_nic_poll_controller(struct net_device *netdev)
1970 struct netxen_adapter *adapter = netdev_priv(netdev);
1971 disable_irq(adapter->irq);
1972 netxen_intr(adapter->irq, adapter);
1973 enable_irq(adapter->irq);
1978 netxen_store_bridged_mode(struct device *dev,
1979 struct device_attribute *attr, const char *buf, size_t len)
1981 struct net_device *net = to_net_dev(dev);
1982 struct netxen_adapter *adapter = netdev_priv(net);
1986 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
1989 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1992 if (strict_strtoul(buf, 2, &new))
1995 if (!netxen_config_bridged_mode(adapter, !!new))
2003 netxen_show_bridged_mode(struct device *dev,
2004 struct device_attribute *attr, char *buf)
2006 struct net_device *net = to_net_dev(dev);
2007 struct netxen_adapter *adapter;
2008 int bridged_mode = 0;
2010 adapter = netdev_priv(net);
2012 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2013 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2015 return sprintf(buf, "%d\n", bridged_mode);
2018 static struct device_attribute dev_attr_bridged_mode = {
2019 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2020 .show = netxen_show_bridged_mode,
2021 .store = netxen_store_bridged_mode,
2025 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2027 struct net_device *netdev = adapter->netdev;
2028 struct device *dev = &netdev->dev;
2030 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2031 /* bridged_mode control */
2032 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2033 dev_warn(&netdev->dev,
2034 "failed to create bridged_mode sysfs entry\n");
2040 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2042 struct net_device *netdev = adapter->netdev;
2043 struct device *dev = &netdev->dev;
2045 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2046 device_remove_file(dev, &dev_attr_bridged_mode);
2051 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2054 netxen_destip_supported(struct netxen_adapter *adapter)
2056 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2059 if (adapter->ahw.cut_through)
2065 static int netxen_netdev_event(struct notifier_block *this,
2066 unsigned long event, void *ptr)
2068 struct netxen_adapter *adapter;
2069 struct net_device *dev = (struct net_device *)ptr;
2070 struct in_device *indev;
2076 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2077 dev = vlan_dev_real_dev(dev);
2081 if (!is_netxen_netdev(dev))
2084 adapter = netdev_priv(dev);
2086 if (!adapter || !netxen_destip_supported(adapter))
2089 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2092 indev = in_dev_get(dev);
2099 netxen_config_ipaddr(adapter,
2100 ifa->ifa_address, NX_IP_UP);
2103 netxen_config_ipaddr(adapter,
2104 ifa->ifa_address, NX_IP_DOWN);
2109 } endfor_ifa(indev);
2117 netxen_inetaddr_event(struct notifier_block *this,
2118 unsigned long event, void *ptr)
2120 struct netxen_adapter *adapter;
2121 struct net_device *dev;
2123 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2125 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2128 if (dev == NULL || !netif_running(dev))
2131 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2132 dev = vlan_dev_real_dev(dev);
2136 if (!is_netxen_netdev(dev))
2139 adapter = netdev_priv(dev);
2141 if (!adapter || !netxen_destip_supported(adapter))
2144 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2149 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2152 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2162 static struct notifier_block netxen_netdev_cb = {
2163 .notifier_call = netxen_netdev_event,
2166 static struct notifier_block netxen_inetaddr_cb = {
2167 .notifier_call = netxen_inetaddr_event,
2171 static struct pci_driver netxen_driver = {
2172 .name = netxen_nic_driver_name,
2173 .id_table = netxen_pci_tbl,
2174 .probe = netxen_nic_probe,
2175 .remove = __devexit_p(netxen_nic_remove),
2177 .suspend = netxen_nic_suspend,
2178 .resume = netxen_nic_resume,
2180 .shutdown = netxen_nic_shutdown
2183 static int __init netxen_init_module(void)
2185 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2188 register_netdevice_notifier(&netxen_netdev_cb);
2189 register_inetaddr_notifier(&netxen_inetaddr_cb);
2192 return pci_register_driver(&netxen_driver);
2195 module_init(netxen_init_module);
2197 static void __exit netxen_exit_module(void)
2199 pci_unregister_driver(&netxen_driver);
2202 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2203 unregister_netdevice_notifier(&netxen_netdev_cb);
2207 module_exit(netxen_exit_module);