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 netxen_load_firmware(adapter);
776 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
778 /* Initialize multicast addr pool owners */
780 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
782 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
786 err = netxen_init_dummy_dma(adapter);
791 * Tell the hardware our version number.
793 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
794 | ((_NETXEN_NIC_LINUX_MINOR << 8))
795 | (_NETXEN_NIC_LINUX_SUBVERSION);
796 NXWR32(adapter, CRB_DRIVER_VERSION, val);
799 /* Handshake with the card before we register the devices. */
800 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
802 netxen_free_dummy_dma(adapter);
806 nx_update_dma_mask(adapter);
808 netxen_nic_get_firmware_info(adapter);
814 netxen_nic_request_irq(struct netxen_adapter *adapter)
816 irq_handler_t handler;
817 struct nx_host_sds_ring *sds_ring;
820 unsigned long flags = IRQF_SAMPLE_RANDOM;
821 struct net_device *netdev = adapter->netdev;
822 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
824 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
825 handler = netxen_msix_intr;
826 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
827 handler = netxen_msi_intr;
829 flags |= IRQF_SHARED;
830 handler = netxen_intr;
832 adapter->irq = netdev->irq;
834 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
835 sds_ring = &recv_ctx->sds_rings[ring];
836 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
837 err = request_irq(sds_ring->irq, handler,
838 flags, sds_ring->name, sds_ring);
847 netxen_nic_free_irq(struct netxen_adapter *adapter)
850 struct nx_host_sds_ring *sds_ring;
852 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
854 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
855 sds_ring = &recv_ctx->sds_rings[ring];
856 free_irq(sds_ring->irq, sds_ring);
861 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
863 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
864 adapter->coal.normal.data.rx_time_us =
865 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
866 adapter->coal.normal.data.rx_packets =
867 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
868 adapter->coal.normal.data.tx_time_us =
869 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
870 adapter->coal.normal.data.tx_packets =
871 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
875 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
879 err = adapter->init_port(adapter, adapter->physical_port);
881 printk(KERN_ERR "%s: Failed to initialize port %d\n",
882 netxen_nic_driver_name, adapter->portnum);
885 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
886 adapter->macaddr_set(adapter, netdev->dev_addr);
888 adapter->set_multi(netdev);
889 adapter->set_mtu(adapter, netdev->mtu);
891 adapter->ahw.linkup = 0;
893 if (adapter->max_sds_rings > 1)
894 netxen_config_rss(adapter, 1);
896 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
897 netxen_config_intr_coalesce(adapter);
899 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
900 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
902 netxen_napi_enable(adapter);
904 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
905 netxen_linkevent_request(adapter, 1);
907 netxen_nic_set_link_parameters(adapter);
909 mod_timer(&adapter->watchdog_timer, jiffies);
915 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
917 spin_lock(&adapter->tx_clean_lock);
918 netif_carrier_off(netdev);
919 netif_tx_disable(netdev);
921 if (adapter->stop_port)
922 adapter->stop_port(adapter);
924 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
925 netxen_p3_free_mac_list(adapter);
927 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
929 netxen_napi_disable(adapter);
931 netxen_release_tx_buffers(adapter);
932 spin_unlock(&adapter->tx_clean_lock);
934 del_timer_sync(&adapter->watchdog_timer);
939 netxen_nic_attach(struct netxen_adapter *adapter)
941 struct net_device *netdev = adapter->netdev;
942 struct pci_dev *pdev = adapter->pdev;
944 struct nx_host_rds_ring *rds_ring;
945 struct nx_host_tx_ring *tx_ring;
947 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
950 err = netxen_init_firmware(adapter);
954 err = netxen_napi_add(adapter, netdev);
958 err = netxen_alloc_sw_resources(adapter);
960 printk(KERN_ERR "%s: Error in setting sw resources\n",
965 netxen_nic_clear_stats(adapter);
967 err = netxen_alloc_hw_resources(adapter);
969 printk(KERN_ERR "%s: Error in setting hw resources\n",
971 goto err_out_free_sw;
974 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
975 tx_ring = adapter->tx_ring;
976 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
977 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
979 tx_ring->producer = 0;
980 tx_ring->sw_consumer = 0;
982 netxen_nic_update_cmd_producer(adapter, tx_ring);
983 netxen_nic_update_cmd_consumer(adapter, tx_ring);
986 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
987 rds_ring = &adapter->recv_ctx.rds_rings[ring];
988 netxen_post_rx_buffers(adapter, ring, rds_ring);
991 err = netxen_nic_request_irq(adapter);
993 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
995 goto err_out_free_rxbuf;
998 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
999 netxen_nic_init_coalesce_defaults(adapter);
1001 netxen_create_sysfs_entries(adapter);
1003 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1007 netxen_release_rx_buffers(adapter);
1008 netxen_free_hw_resources(adapter);
1010 netxen_free_sw_resources(adapter);
1015 netxen_nic_detach(struct netxen_adapter *adapter)
1017 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1020 netxen_remove_sysfs_entries(adapter);
1022 netxen_free_hw_resources(adapter);
1023 netxen_release_rx_buffers(adapter);
1024 netxen_nic_free_irq(adapter);
1025 netxen_napi_del(adapter);
1026 netxen_free_sw_resources(adapter);
1032 netxen_nic_reset_context(struct netxen_adapter *adapter)
1035 struct net_device *netdev = adapter->netdev;
1037 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1039 if (netif_running(netdev))
1040 netxen_nic_down(adapter, netdev);
1042 netxen_nic_detach(adapter);
1044 err = netxen_nic_attach(adapter);
1048 if (netif_running(netdev))
1049 err = netxen_nic_up(adapter, netdev);
1056 netxen_setup_netdev(struct netxen_adapter *adapter,
1057 struct net_device *netdev)
1060 struct pci_dev *pdev = adapter->pdev;
1062 adapter->rx_csum = 1;
1063 adapter->mc_enabled = 0;
1064 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1065 adapter->max_mc_count = 38;
1067 adapter->max_mc_count = 16;
1069 netdev->netdev_ops = &netxen_netdev_ops;
1070 netdev->watchdog_timeo = 2*HZ;
1072 netxen_nic_change_mtu(netdev, netdev->mtu);
1074 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1076 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1077 netdev->features |= (NETIF_F_GRO);
1078 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1080 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1081 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1082 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1085 if (adapter->pci_using_dac) {
1086 netdev->features |= NETIF_F_HIGHDMA;
1087 netdev->vlan_features |= NETIF_F_HIGHDMA;
1090 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1091 netdev->features |= (NETIF_F_HW_VLAN_TX);
1093 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1094 netdev->features |= NETIF_F_LRO;
1096 netdev->irq = adapter->msix_entries[0].vector;
1098 init_timer(&adapter->watchdog_timer);
1099 adapter->watchdog_timer.function = &netxen_watchdog;
1100 adapter->watchdog_timer.data = (unsigned long)adapter;
1101 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1102 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1104 if (netxen_read_mac_addr(adapter))
1105 dev_warn(&pdev->dev, "failed to read mac addr\n");
1107 netif_carrier_off(netdev);
1108 netif_stop_queue(netdev);
1110 err = register_netdev(netdev);
1112 dev_err(&pdev->dev, "failed to register net device\n");
1119 static int __devinit
1120 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1122 struct net_device *netdev = NULL;
1123 struct netxen_adapter *adapter = NULL;
1125 int pci_func_id = PCI_FUNC(pdev->devfn);
1126 uint8_t revision_id;
1128 if (pdev->class != 0x020000) {
1129 printk(KERN_DEBUG "NetXen function %d, class %x will not "
1130 "be enabled.\n",pci_func_id, pdev->class);
1134 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1135 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1136 "will not be enabled.\n",
1137 NX_P3_A0, NX_P3_B1);
1141 if ((err = pci_enable_device(pdev)))
1144 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1146 goto err_out_disable_pdev;
1149 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1150 goto err_out_disable_pdev;
1152 pci_set_master(pdev);
1154 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1156 dev_err(&pdev->dev, "failed to allocate net_device\n");
1158 goto err_out_free_res;
1161 SET_NETDEV_DEV(netdev, &pdev->dev);
1163 adapter = netdev_priv(netdev);
1164 adapter->netdev = netdev;
1165 adapter->pdev = pdev;
1166 adapter->ahw.pci_func = pci_func_id;
1168 revision_id = pdev->revision;
1169 adapter->ahw.revision_id = revision_id;
1171 err = nx_set_dma_mask(adapter);
1173 goto err_out_free_netdev;
1175 rwlock_init(&adapter->adapter_lock);
1176 spin_lock_init(&adapter->tx_clean_lock);
1177 INIT_LIST_HEAD(&adapter->mac_list);
1179 err = netxen_setup_pci_map(adapter);
1181 goto err_out_free_netdev;
1183 /* This will be reset for mezz cards */
1184 adapter->portnum = pci_func_id;
1186 err = netxen_nic_get_board_info(adapter);
1188 dev_err(&pdev->dev, "Error getting board config info.\n");
1189 goto err_out_iounmap;
1192 netxen_initialize_adapter_ops(adapter);
1194 /* Mezz cards have PCI function 0,2,3 enabled */
1195 switch (adapter->ahw.board_type) {
1196 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1197 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1198 if (pci_func_id >= 2)
1199 adapter->portnum = pci_func_id - 2;
1205 err = netxen_start_firmware(adapter, 1);
1207 goto err_out_iounmap;
1210 * See if the firmware gave us a virtual-physical port mapping.
1212 adapter->physical_port = adapter->portnum;
1213 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1214 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1215 if (i != 0x55555555)
1216 adapter->physical_port = i;
1219 netxen_check_options(adapter);
1221 netxen_setup_intr(adapter);
1223 err = netxen_setup_netdev(adapter, netdev);
1225 goto err_out_disable_msi;
1227 pci_set_drvdata(pdev, adapter);
1229 switch (adapter->ahw.port_type) {
1230 case NETXEN_NIC_GBE:
1231 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1232 adapter->netdev->name);
1234 case NETXEN_NIC_XGBE:
1235 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1236 adapter->netdev->name);
1242 err_out_disable_msi:
1243 netxen_teardown_intr(adapter);
1245 netxen_free_dummy_dma(adapter);
1248 netxen_cleanup_pci_map(adapter);
1250 err_out_free_netdev:
1251 free_netdev(netdev);
1254 pci_release_regions(pdev);
1256 err_out_disable_pdev:
1257 pci_set_drvdata(pdev, NULL);
1258 pci_disable_device(pdev);
1262 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1264 struct netxen_adapter *adapter;
1265 struct net_device *netdev;
1267 adapter = pci_get_drvdata(pdev);
1268 if (adapter == NULL)
1271 netdev = adapter->netdev;
1273 unregister_netdev(netdev);
1275 cancel_work_sync(&adapter->watchdog_task);
1276 cancel_work_sync(&adapter->tx_timeout_task);
1278 netxen_nic_detach(adapter);
1280 if (adapter->portnum == 0)
1281 netxen_free_dummy_dma(adapter);
1283 netxen_teardown_intr(adapter);
1285 netxen_cleanup_pci_map(adapter);
1287 netxen_release_firmware(adapter);
1289 pci_release_regions(pdev);
1290 pci_disable_device(pdev);
1291 pci_set_drvdata(pdev, NULL);
1293 free_netdev(netdev);
1295 static int __netxen_nic_shutdown(struct pci_dev *pdev)
1297 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1298 struct net_device *netdev = adapter->netdev;
1301 netif_device_detach(netdev);
1303 if (netif_running(netdev))
1304 netxen_nic_down(adapter, netdev);
1306 cancel_work_sync(&adapter->watchdog_task);
1307 cancel_work_sync(&adapter->tx_timeout_task);
1309 netxen_nic_detach(adapter);
1311 if (adapter->portnum == 0)
1312 netxen_free_dummy_dma(adapter);
1314 retval = pci_save_state(pdev);
1318 if (netxen_nic_wol_supported(adapter)) {
1319 pci_enable_wake(pdev, PCI_D3cold, 1);
1320 pci_enable_wake(pdev, PCI_D3hot, 1);
1323 pci_disable_device(pdev);
1327 static void netxen_nic_shutdown(struct pci_dev *pdev)
1329 if (__netxen_nic_shutdown(pdev))
1334 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1338 retval = __netxen_nic_shutdown(pdev);
1342 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1347 netxen_nic_resume(struct pci_dev *pdev)
1349 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1350 struct net_device *netdev = adapter->netdev;
1353 pci_set_power_state(pdev, PCI_D0);
1354 pci_restore_state(pdev);
1356 err = pci_enable_device(pdev);
1360 adapter->curr_window = 255;
1362 err = netxen_start_firmware(adapter, 0);
1364 dev_err(&pdev->dev, "failed to start firmware\n");
1368 if (netif_running(netdev)) {
1369 err = netxen_nic_attach(adapter);
1373 err = netxen_nic_up(adapter, netdev);
1377 netif_device_attach(netdev);
1384 static int netxen_nic_open(struct net_device *netdev)
1386 struct netxen_adapter *adapter = netdev_priv(netdev);
1389 if (adapter->driver_mismatch)
1392 err = netxen_nic_attach(adapter);
1396 err = netxen_nic_up(adapter, netdev);
1400 netif_start_queue(netdev);
1405 netxen_nic_detach(adapter);
1410 * netxen_nic_close - Disables a network interface entry point
1412 static int netxen_nic_close(struct net_device *netdev)
1414 struct netxen_adapter *adapter = netdev_priv(netdev);
1416 netxen_nic_down(adapter, netdev);
1421 netxen_tso_check(struct net_device *netdev,
1422 struct nx_host_tx_ring *tx_ring,
1423 struct cmd_desc_type0 *first_desc,
1424 struct sk_buff *skb)
1426 u8 opcode = TX_ETHER_PKT;
1427 __be16 protocol = skb->protocol;
1428 u16 flags = 0, vid = 0;
1430 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1431 struct cmd_desc_type0 *hwdesc;
1432 struct vlan_ethhdr *vh;
1434 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1436 vh = (struct vlan_ethhdr *)skb->data;
1437 protocol = vh->h_vlan_encapsulated_proto;
1438 flags = FLAGS_VLAN_TAGGED;
1440 } else if (vlan_tx_tag_present(skb)) {
1442 flags = FLAGS_VLAN_OOB;
1443 vid = vlan_tx_tag_get(skb);
1444 netxen_set_tx_vlan_tci(first_desc, vid);
1448 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1449 skb_shinfo(skb)->gso_size > 0) {
1451 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1453 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1454 first_desc->total_hdr_length = hdr_len;
1456 first_desc->total_hdr_length += VLAN_HLEN;
1457 first_desc->tcp_hdr_offset = VLAN_HLEN;
1458 first_desc->ip_hdr_offset = VLAN_HLEN;
1459 /* Only in case of TSO on vlan device */
1460 flags |= FLAGS_VLAN_TAGGED;
1463 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1464 TX_TCP_LSO6 : TX_TCP_LSO;
1467 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1470 if (protocol == cpu_to_be16(ETH_P_IP)) {
1471 l4proto = ip_hdr(skb)->protocol;
1473 if (l4proto == IPPROTO_TCP)
1474 opcode = TX_TCP_PKT;
1475 else if(l4proto == IPPROTO_UDP)
1476 opcode = TX_UDP_PKT;
1477 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1478 l4proto = ipv6_hdr(skb)->nexthdr;
1480 if (l4proto == IPPROTO_TCP)
1481 opcode = TX_TCPV6_PKT;
1482 else if(l4proto == IPPROTO_UDP)
1483 opcode = TX_UDPV6_PKT;
1487 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1488 first_desc->ip_hdr_offset += skb_network_offset(skb);
1489 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1494 /* For LSO, we need to copy the MAC/IP/TCP headers into
1495 * the descriptor ring
1497 producer = tx_ring->producer;
1502 /* Create a TSO vlan header template for firmware */
1504 hwdesc = &tx_ring->desc_head[producer];
1505 tx_ring->cmd_buf_arr[producer].skb = NULL;
1507 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1508 hdr_len + VLAN_HLEN);
1510 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1511 skb_copy_from_linear_data(skb, vh, 12);
1512 vh->h_vlan_proto = htons(ETH_P_8021Q);
1513 vh->h_vlan_TCI = htons(vid);
1514 skb_copy_from_linear_data_offset(skb, 12,
1515 (char *)vh + 16, copy_len - 16);
1517 copied = copy_len - VLAN_HLEN;
1520 producer = get_next_index(producer, tx_ring->num_desc);
1523 while (copied < hdr_len) {
1525 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1526 (hdr_len - copied));
1528 hwdesc = &tx_ring->desc_head[producer];
1529 tx_ring->cmd_buf_arr[producer].skb = NULL;
1531 skb_copy_from_linear_data_offset(skb, copied,
1532 (char *)hwdesc + offset, copy_len);
1537 producer = get_next_index(producer, tx_ring->num_desc);
1540 tx_ring->producer = producer;
1545 netxen_map_tx_skb(struct pci_dev *pdev,
1546 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1548 struct netxen_skb_frag *nf;
1549 struct skb_frag_struct *frag;
1553 nr_frags = skb_shinfo(skb)->nr_frags;
1554 nf = &pbuf->frag_array[0];
1556 map = pci_map_single(pdev, skb->data,
1557 skb_headlen(skb), PCI_DMA_TODEVICE);
1558 if (pci_dma_mapping_error(pdev, map))
1562 nf->length = skb_headlen(skb);
1564 for (i = 0; i < nr_frags; i++) {
1565 frag = &skb_shinfo(skb)->frags[i];
1566 nf = &pbuf->frag_array[i+1];
1568 map = pci_map_page(pdev, frag->page, frag->page_offset,
1569 frag->size, PCI_DMA_TODEVICE);
1570 if (pci_dma_mapping_error(pdev, map))
1574 nf->length = frag->size;
1581 nf = &pbuf->frag_array[i];
1582 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1585 nf = &pbuf->frag_array[0];
1586 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1593 netxen_clear_cmddesc(u64 *desc)
1600 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1602 struct netxen_adapter *adapter = netdev_priv(netdev);
1603 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1604 struct netxen_cmd_buffer *pbuf;
1605 struct netxen_skb_frag *buffrag;
1606 struct cmd_desc_type0 *hwdesc, *first_desc;
1607 struct pci_dev *pdev;
1611 int frag_count, no_of_desc;
1612 u32 num_txd = tx_ring->num_desc;
1614 frag_count = skb_shinfo(skb)->nr_frags + 1;
1616 /* 4 fragments per cmd des */
1617 no_of_desc = (frag_count + 3) >> 2;
1619 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
1620 netif_stop_queue(netdev);
1621 return NETDEV_TX_BUSY;
1624 producer = tx_ring->producer;
1625 pbuf = &tx_ring->cmd_buf_arr[producer];
1627 pdev = adapter->pdev;
1629 if (netxen_map_tx_skb(pdev, skb, pbuf))
1633 pbuf->frag_count = frag_count;
1635 first_desc = hwdesc = &tx_ring->desc_head[producer];
1636 netxen_clear_cmddesc((u64 *)hwdesc);
1638 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1639 netxen_set_tx_port(first_desc, adapter->portnum);
1641 for (i = 0; i < frag_count; i++) {
1645 if ((k == 0) && (i > 0)) {
1646 /* move to next desc.*/
1647 producer = get_next_index(producer, num_txd);
1648 hwdesc = &tx_ring->desc_head[producer];
1649 netxen_clear_cmddesc((u64 *)hwdesc);
1650 tx_ring->cmd_buf_arr[producer].skb = NULL;
1653 buffrag = &pbuf->frag_array[i];
1655 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1658 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1661 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1664 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1667 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1672 tx_ring->producer = get_next_index(producer, num_txd);
1674 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1676 netxen_nic_update_cmd_producer(adapter, tx_ring);
1678 adapter->stats.txbytes += skb->len;
1679 adapter->stats.xmitcalled++;
1681 return NETDEV_TX_OK;
1684 adapter->stats.txdropped++;
1685 dev_kfree_skb_any(skb);
1686 return NETDEV_TX_OK;
1689 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1691 struct net_device *netdev = adapter->netdev;
1692 uint32_t temp, temp_state, temp_val;
1695 temp = NXRD32(adapter, CRB_TEMP_STATE);
1697 temp_state = nx_get_temp_state(temp);
1698 temp_val = nx_get_temp_val(temp);
1700 if (temp_state == NX_TEMP_PANIC) {
1702 "%s: Device temperature %d degrees C exceeds"
1703 " maximum allowed. Hardware has been shut down.\n",
1704 netdev->name, temp_val);
1706 } else if (temp_state == NX_TEMP_WARN) {
1707 if (adapter->temp == NX_TEMP_NORMAL) {
1709 "%s: Device temperature %d degrees C "
1710 "exceeds operating range."
1711 " Immediate action needed.\n",
1712 netdev->name, temp_val);
1715 if (adapter->temp == NX_TEMP_WARN) {
1717 "%s: Device temperature is now %d degrees C"
1718 " in normal range.\n", netdev->name,
1722 adapter->temp = temp_state;
1726 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1728 struct net_device *netdev = adapter->netdev;
1730 if (adapter->ahw.linkup && !linkup) {
1731 printk(KERN_INFO "%s: %s NIC Link is down\n",
1732 netxen_nic_driver_name, netdev->name);
1733 adapter->ahw.linkup = 0;
1734 if (netif_running(netdev)) {
1735 netif_carrier_off(netdev);
1736 netif_stop_queue(netdev);
1738 adapter->link_changed = !adapter->has_link_events;
1739 } else if (!adapter->ahw.linkup && linkup) {
1740 printk(KERN_INFO "%s: %s NIC Link is up\n",
1741 netxen_nic_driver_name, netdev->name);
1742 adapter->ahw.linkup = 1;
1743 if (netif_running(netdev)) {
1744 netif_carrier_on(netdev);
1745 netif_wake_queue(netdev);
1747 adapter->link_changed = !adapter->has_link_events;
1751 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1753 u32 val, port, linkup;
1755 port = adapter->physical_port;
1757 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1758 val = NXRD32(adapter, CRB_XG_STATE_P3);
1759 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1760 linkup = (val == XG_LINK_UP_P3);
1762 val = NXRD32(adapter, CRB_XG_STATE);
1763 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1764 linkup = (val >> port) & 1;
1766 val = (val >> port*8) & 0xff;
1767 linkup = (val == XG_LINK_UP);
1771 netxen_advert_link_change(adapter, linkup);
1774 static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter)
1776 struct net_device *netdev = adapter->netdev;
1778 netif_device_detach(netdev);
1779 netxen_nic_down(adapter, netdev);
1780 netxen_nic_detach(adapter);
1783 static void netxen_watchdog(unsigned long v)
1785 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
1787 if (netxen_nic_check_temp(adapter))
1790 if (!adapter->has_link_events) {
1791 netxen_nic_handle_phy_intr(adapter);
1793 if (adapter->link_changed)
1797 if (netif_running(adapter->netdev))
1798 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1803 schedule_work(&adapter->watchdog_task);
1806 void netxen_watchdog_task(struct work_struct *work)
1808 struct netxen_adapter *adapter =
1809 container_of(work, struct netxen_adapter, watchdog_task);
1811 if (adapter->temp == NX_TEMP_PANIC) {
1812 netxen_nic_thermal_shutdown(adapter);
1816 if (adapter->link_changed)
1817 netxen_nic_set_link_parameters(adapter);
1819 if (netif_running(adapter->netdev))
1820 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1823 static void netxen_tx_timeout(struct net_device *netdev)
1825 struct netxen_adapter *adapter = netdev_priv(netdev);
1827 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1828 schedule_work(&adapter->tx_timeout_task);
1831 static void netxen_reset_task(struct work_struct *work)
1833 struct netxen_adapter *adapter =
1834 container_of(work, struct netxen_adapter, tx_timeout_task);
1836 if (!netif_running(adapter->netdev))
1839 netxen_napi_disable(adapter);
1841 adapter->netdev->trans_start = jiffies;
1843 netxen_napi_enable(adapter);
1844 netif_wake_queue(adapter->netdev);
1847 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1849 struct netxen_adapter *adapter = netdev_priv(netdev);
1850 struct net_device_stats *stats = &adapter->net_stats;
1852 memset(stats, 0, sizeof(*stats));
1854 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1855 stats->tx_packets = adapter->stats.xmitfinished;
1856 stats->rx_bytes = adapter->stats.rxbytes;
1857 stats->tx_bytes = adapter->stats.txbytes;
1858 stats->rx_dropped = adapter->stats.rxdropped;
1859 stats->tx_dropped = adapter->stats.txdropped;
1864 static irqreturn_t netxen_intr(int irq, void *data)
1866 struct nx_host_sds_ring *sds_ring = data;
1867 struct netxen_adapter *adapter = sds_ring->adapter;
1870 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1872 if (!(status & adapter->legacy_intr.int_vec_bit))
1875 if (adapter->ahw.revision_id >= NX_P3_B1) {
1876 /* check interrupt state machine, to be sure */
1877 status = adapter->pci_read_immediate(adapter,
1879 if (!ISR_LEGACY_INT_TRIGGERED(status))
1883 unsigned long our_int = 0;
1885 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1887 /* not our interrupt */
1888 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1891 /* claim interrupt */
1892 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1895 /* clear interrupt */
1896 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1897 netxen_nic_disable_int(sds_ring);
1899 adapter->pci_write_immediate(adapter,
1900 adapter->legacy_intr.tgt_status_reg,
1902 /* read twice to ensure write is flushed */
1903 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1904 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1906 napi_schedule(&sds_ring->napi);
1911 static irqreturn_t netxen_msi_intr(int irq, void *data)
1913 struct nx_host_sds_ring *sds_ring = data;
1914 struct netxen_adapter *adapter = sds_ring->adapter;
1916 /* clear interrupt */
1917 adapter->pci_write_immediate(adapter,
1918 adapter->msi_tgt_status, 0xffffffff);
1920 napi_schedule(&sds_ring->napi);
1924 static irqreturn_t netxen_msix_intr(int irq, void *data)
1926 struct nx_host_sds_ring *sds_ring = data;
1928 napi_schedule(&sds_ring->napi);
1932 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1934 struct nx_host_sds_ring *sds_ring =
1935 container_of(napi, struct nx_host_sds_ring, napi);
1937 struct netxen_adapter *adapter = sds_ring->adapter;
1942 tx_complete = netxen_process_cmd_ring(adapter);
1944 work_done = netxen_process_rcv_ring(sds_ring, budget);
1946 if ((work_done < budget) && tx_complete) {
1947 napi_complete(&sds_ring->napi);
1948 if (netif_running(adapter->netdev))
1949 netxen_nic_enable_int(sds_ring);
1955 #ifdef CONFIG_NET_POLL_CONTROLLER
1956 static void netxen_nic_poll_controller(struct net_device *netdev)
1958 struct netxen_adapter *adapter = netdev_priv(netdev);
1959 disable_irq(adapter->irq);
1960 netxen_intr(adapter->irq, adapter);
1961 enable_irq(adapter->irq);
1966 netxen_store_bridged_mode(struct device *dev,
1967 struct device_attribute *attr, const char *buf, size_t len)
1969 struct net_device *net = to_net_dev(dev);
1970 struct netxen_adapter *adapter = netdev_priv(net);
1974 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
1977 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1980 if (strict_strtoul(buf, 2, &new))
1983 if (!netxen_config_bridged_mode(adapter, !!new))
1991 netxen_show_bridged_mode(struct device *dev,
1992 struct device_attribute *attr, char *buf)
1994 struct net_device *net = to_net_dev(dev);
1995 struct netxen_adapter *adapter;
1996 int bridged_mode = 0;
1998 adapter = netdev_priv(net);
2000 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2001 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2003 return sprintf(buf, "%d\n", bridged_mode);
2006 static struct device_attribute dev_attr_bridged_mode = {
2007 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2008 .show = netxen_show_bridged_mode,
2009 .store = netxen_store_bridged_mode,
2013 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2015 struct net_device *netdev = adapter->netdev;
2016 struct device *dev = &netdev->dev;
2018 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2019 /* bridged_mode control */
2020 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2021 dev_warn(&netdev->dev,
2022 "failed to create bridged_mode sysfs entry\n");
2028 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2030 struct net_device *netdev = adapter->netdev;
2031 struct device *dev = &netdev->dev;
2033 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2034 device_remove_file(dev, &dev_attr_bridged_mode);
2039 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2042 netxen_destip_supported(struct netxen_adapter *adapter)
2044 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2047 if (adapter->ahw.cut_through)
2053 static int netxen_netdev_event(struct notifier_block *this,
2054 unsigned long event, void *ptr)
2056 struct netxen_adapter *adapter;
2057 struct net_device *dev = (struct net_device *)ptr;
2058 struct in_device *indev;
2064 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2065 dev = vlan_dev_real_dev(dev);
2069 if (!is_netxen_netdev(dev))
2072 adapter = netdev_priv(dev);
2074 if (!adapter || !netxen_destip_supported(adapter))
2077 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2080 indev = in_dev_get(dev);
2087 netxen_config_ipaddr(adapter,
2088 ifa->ifa_address, NX_IP_UP);
2091 netxen_config_ipaddr(adapter,
2092 ifa->ifa_address, NX_IP_DOWN);
2097 } endfor_ifa(indev);
2105 netxen_inetaddr_event(struct notifier_block *this,
2106 unsigned long event, void *ptr)
2108 struct netxen_adapter *adapter;
2109 struct net_device *dev;
2111 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2113 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2116 if (dev == NULL || !netif_running(dev))
2119 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2120 dev = vlan_dev_real_dev(dev);
2124 if (!is_netxen_netdev(dev))
2127 adapter = netdev_priv(dev);
2129 if (!adapter || !netxen_destip_supported(adapter))
2132 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2137 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2140 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2150 static struct notifier_block netxen_netdev_cb = {
2151 .notifier_call = netxen_netdev_event,
2154 static struct notifier_block netxen_inetaddr_cb = {
2155 .notifier_call = netxen_inetaddr_event,
2159 static struct pci_driver netxen_driver = {
2160 .name = netxen_nic_driver_name,
2161 .id_table = netxen_pci_tbl,
2162 .probe = netxen_nic_probe,
2163 .remove = __devexit_p(netxen_nic_remove),
2165 .suspend = netxen_nic_suspend,
2166 .resume = netxen_nic_resume,
2168 .shutdown = netxen_nic_shutdown
2171 static int __init netxen_init_module(void)
2173 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2176 register_netdevice_notifier(&netxen_netdev_cb);
2177 register_inetaddr_notifier(&netxen_inetaddr_cb);
2180 return pci_register_driver(&netxen_driver);
2183 module_init(netxen_init_module);
2185 static void __exit netxen_exit_module(void)
2187 pci_unregister_driver(&netxen_driver);
2190 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2191 unregister_netdevice_notifier(&netxen_netdev_cb);
2195 module_exit(netxen_exit_module);