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_fw_poll_work(struct work_struct *work);
71 static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
74 static int netxen_nic_poll(struct napi_struct *napi, int budget);
75 #ifdef CONFIG_NET_POLL_CONTROLLER
76 static void netxen_nic_poll_controller(struct net_device *netdev);
79 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
82 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
83 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
85 static irqreturn_t netxen_intr(int irq, void *data);
86 static irqreturn_t netxen_msi_intr(int irq, void *data);
87 static irqreturn_t netxen_msix_intr(int irq, void *data);
89 /* PCI Device ID Table */
90 #define ENTRY(device) \
91 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
92 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
94 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
95 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
96 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
97 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
98 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
99 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
100 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
101 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
102 ENTRY(PCI_DEVICE_ID_NX3031),
106 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
108 static uint32_t crb_cmd_producer[4] = {
109 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
110 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
114 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
115 struct nx_host_tx_ring *tx_ring)
117 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
119 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
120 netif_stop_queue(adapter->netdev);
125 static uint32_t crb_cmd_consumer[4] = {
126 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
127 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
131 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
132 struct nx_host_tx_ring *tx_ring)
134 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
137 static uint32_t msi_tgt_status[8] = {
138 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
139 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
140 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
141 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
144 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
146 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
148 struct netxen_adapter *adapter = sds_ring->adapter;
150 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
153 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
155 struct netxen_adapter *adapter = sds_ring->adapter;
157 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
159 if (!NETXEN_IS_MSI_FAMILY(adapter))
160 adapter->pci_write_immediate(adapter,
161 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
165 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
167 int size = sizeof(struct nx_host_sds_ring) * count;
169 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
171 return (recv_ctx->sds_rings == NULL);
175 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
177 if (recv_ctx->sds_rings != NULL)
178 kfree(recv_ctx->sds_rings);
180 recv_ctx->sds_rings = NULL;
184 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
187 struct nx_host_sds_ring *sds_ring;
188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
190 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
193 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
194 sds_ring = &recv_ctx->sds_rings[ring];
195 netif_napi_add(netdev, &sds_ring->napi,
196 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
203 netxen_napi_del(struct netxen_adapter *adapter)
206 struct nx_host_sds_ring *sds_ring;
207 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
209 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
210 sds_ring = &recv_ctx->sds_rings[ring];
211 netif_napi_del(&sds_ring->napi);
214 netxen_free_sds_rings(&adapter->recv_ctx);
218 netxen_napi_enable(struct netxen_adapter *adapter)
221 struct nx_host_sds_ring *sds_ring;
222 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
224 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
225 sds_ring = &recv_ctx->sds_rings[ring];
226 napi_enable(&sds_ring->napi);
227 netxen_nic_enable_int(sds_ring);
232 netxen_napi_disable(struct netxen_adapter *adapter)
235 struct nx_host_sds_ring *sds_ring;
236 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
238 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
239 sds_ring = &recv_ctx->sds_rings[ring];
240 netxen_nic_disable_int(sds_ring);
241 napi_synchronize(&sds_ring->napi);
242 napi_disable(&sds_ring->napi);
246 static int nx_set_dma_mask(struct netxen_adapter *adapter)
248 struct pci_dev *pdev = adapter->pdev;
249 uint64_t mask, cmask;
251 adapter->pci_using_dac = 0;
253 mask = DMA_BIT_MASK(32);
254 cmask = DMA_BIT_MASK(32);
256 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
258 mask = DMA_BIT_MASK(35);
261 mask = DMA_BIT_MASK(39);
265 if (pci_set_dma_mask(pdev, mask) == 0 &&
266 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
267 adapter->pci_using_dac = 1;
274 /* Update addressable range if firmware supports it */
276 nx_update_dma_mask(struct netxen_adapter *adapter)
278 int change, shift, err;
279 uint64_t mask, old_mask, old_cmask;
280 struct pci_dev *pdev = adapter->pdev;
284 shift = NXRD32(adapter, CRB_DMA_SHIFT);
288 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
290 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
294 old_mask = pdev->dma_mask;
295 old_cmask = pdev->dev.coherent_dma_mask;
297 mask = DMA_BIT_MASK(32+shift);
299 err = pci_set_dma_mask(pdev, mask);
303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
305 err = pci_set_consistent_dma_mask(pdev, mask);
309 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
315 pci_set_dma_mask(pdev, old_mask);
316 pci_set_consistent_dma_mask(pdev, old_cmask);
321 netxen_check_options(struct netxen_adapter *adapter)
323 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
324 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
325 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
326 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
327 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
328 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
331 adapter->msix_supported = 0;
332 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
333 adapter->msix_supported = !!use_msi_x;
334 adapter->rss_supported = !!use_msi_x;
335 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
336 switch (adapter->ahw.board_type) {
337 case NETXEN_BRDTYPE_P2_SB31_10G:
338 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
339 adapter->msix_supported = !!use_msi_x;
340 adapter->rss_supported = !!use_msi_x;
347 adapter->num_txd = MAX_CMD_DESCRIPTORS;
349 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
350 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
351 adapter->max_rds_rings = 3;
353 adapter->num_lro_rxd = 0;
354 adapter->max_rds_rings = 2;
359 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
363 if (first_boot == 0x55555555) {
364 /* This is the first boot after power up */
365 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
367 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
370 /* PCI bus master workaround */
371 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
372 if (!(first_boot & 0x4)) {
374 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
375 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
378 /* This is the first boot after power up */
379 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
380 if (first_boot != 0x80000f) {
381 /* clear the register for future unloads/loads */
382 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
386 /* Start P2 boot loader */
387 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
388 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
392 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
394 if (++timeout > 5000)
397 } while (val == NETXEN_BDINFO_MAGIC);
402 static void netxen_set_port_mode(struct netxen_adapter *adapter)
406 val = adapter->ahw.board_type;
407 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
408 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
409 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
410 data = NETXEN_PORT_MODE_802_3_AP;
411 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
412 } else if (port_mode == NETXEN_PORT_MODE_XG) {
413 data = NETXEN_PORT_MODE_XG;
414 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
415 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
416 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
417 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
418 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
419 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
420 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
422 data = NETXEN_PORT_MODE_AUTO_NEG;
423 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
426 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
427 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
428 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
429 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
430 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
432 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
436 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
441 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
443 pci_read_config_dword(pdev, pos, &control);
445 control |= PCI_MSIX_FLAGS_ENABLE;
448 pci_write_config_dword(pdev, pos, control);
452 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
456 for (i = 0; i < count; i++)
457 adapter->msix_entries[i].entry = i;
461 netxen_read_mac_addr(struct netxen_adapter *adapter)
466 struct net_device *netdev = adapter->netdev;
467 struct pci_dev *pdev = adapter->pdev;
469 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
470 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
473 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
477 p = (unsigned char *)&mac_addr;
478 for (i = 0; i < 6; i++)
479 netdev->dev_addr[i] = *(p + 5 - i);
481 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
483 /* set station address */
485 if (!is_valid_ether_addr(netdev->perm_addr))
486 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
491 int netxen_nic_set_mac(struct net_device *netdev, void *p)
493 struct netxen_adapter *adapter = netdev_priv(netdev);
494 struct sockaddr *addr = p;
496 if (!is_valid_ether_addr(addr->sa_data))
499 if (netif_running(netdev)) {
500 netif_device_detach(netdev);
501 netxen_napi_disable(adapter);
504 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
505 adapter->macaddr_set(adapter, addr->sa_data);
507 if (netif_running(netdev)) {
508 netif_device_attach(netdev);
509 netxen_napi_enable(adapter);
514 static void netxen_set_multicast_list(struct net_device *dev)
516 struct netxen_adapter *adapter = netdev_priv(dev);
518 adapter->set_multi(dev);
521 static const struct net_device_ops netxen_netdev_ops = {
522 .ndo_open = netxen_nic_open,
523 .ndo_stop = netxen_nic_close,
524 .ndo_start_xmit = netxen_nic_xmit_frame,
525 .ndo_get_stats = netxen_nic_get_stats,
526 .ndo_validate_addr = eth_validate_addr,
527 .ndo_set_multicast_list = netxen_set_multicast_list,
528 .ndo_set_mac_address = netxen_nic_set_mac,
529 .ndo_change_mtu = netxen_nic_change_mtu,
530 .ndo_tx_timeout = netxen_tx_timeout,
531 #ifdef CONFIG_NET_POLL_CONTROLLER
532 .ndo_poll_controller = netxen_nic_poll_controller,
537 netxen_setup_intr(struct netxen_adapter *adapter)
539 struct netxen_legacy_intr_set *legacy_intrp;
540 struct pci_dev *pdev = adapter->pdev;
543 if (adapter->rss_supported) {
544 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
545 MSIX_ENTRIES_PER_ADAPTER : 2;
549 adapter->max_sds_rings = 1;
551 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
553 if (adapter->ahw.revision_id >= NX_P3_B0)
554 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
556 legacy_intrp = &legacy_intr[0];
557 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
558 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
559 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
560 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
562 netxen_set_msix_bit(pdev, 0);
564 if (adapter->msix_supported) {
566 netxen_init_msix_entries(adapter, num_msix);
567 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
569 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
570 netxen_set_msix_bit(pdev, 1);
572 if (adapter->rss_supported)
573 adapter->max_sds_rings = num_msix;
575 dev_info(&pdev->dev, "using msi-x interrupts\n");
580 pci_disable_msix(pdev);
582 /* fall through for msi */
585 if (use_msi && !pci_enable_msi(pdev)) {
586 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
587 adapter->msi_tgt_status =
588 msi_tgt_status[adapter->ahw.pci_func];
589 dev_info(&pdev->dev, "using msi interrupts\n");
590 adapter->msix_entries[0].vector = pdev->irq;
594 dev_info(&pdev->dev, "using legacy interrupts\n");
595 adapter->msix_entries[0].vector = pdev->irq;
599 netxen_teardown_intr(struct netxen_adapter *adapter)
601 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
602 pci_disable_msix(adapter->pdev);
603 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
604 pci_disable_msi(adapter->pdev);
608 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
610 if (adapter->ahw.db_base != NULL)
611 iounmap(adapter->ahw.db_base);
612 if (adapter->ahw.pci_base0 != NULL)
613 iounmap(adapter->ahw.pci_base0);
614 if (adapter->ahw.pci_base1 != NULL)
615 iounmap(adapter->ahw.pci_base1);
616 if (adapter->ahw.pci_base2 != NULL)
617 iounmap(adapter->ahw.pci_base2);
621 netxen_setup_pci_map(struct netxen_adapter *adapter)
623 void __iomem *mem_ptr0 = NULL;
624 void __iomem *mem_ptr1 = NULL;
625 void __iomem *mem_ptr2 = NULL;
626 void __iomem *db_ptr = NULL;
628 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
630 struct pci_dev *pdev = adapter->pdev;
631 int pci_func = adapter->ahw.pci_func;
636 * Set the CRB window to invalid. If any register in window 0 is
637 * accessed it should set the window to 0 and then reset it to 1.
639 adapter->curr_window = 255;
640 adapter->ahw.qdr_sn_window = -1;
641 adapter->ahw.ddr_mn_window = -1;
643 /* remap phys address */
644 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
645 mem_len = pci_resource_len(pdev, 0);
648 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
649 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
650 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
651 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
652 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
653 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
654 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
656 /* 128 Meg of memory */
657 if (mem_len == NETXEN_PCI_128MB_SIZE) {
658 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
659 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
660 SECOND_PAGE_GROUP_SIZE);
661 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
662 THIRD_PAGE_GROUP_SIZE);
663 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
664 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
665 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
666 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
667 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
668 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
669 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
670 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
671 adapter->pci_write_immediate =
672 netxen_nic_pci_write_immediate_2M;
673 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
674 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
675 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
677 mem_ptr0 = pci_ioremap_bar(pdev, 0);
678 if (mem_ptr0 == NULL) {
679 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
684 adapter->ahw.ddr_mn_window = 0;
685 adapter->ahw.qdr_sn_window = 0;
687 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
689 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
691 adapter->ahw.ms_win_crb += (pci_func * 0x20);
693 adapter->ahw.ms_win_crb +=
694 0xA0 + ((pci_func - 4) * 0x10);
699 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
701 adapter->ahw.pci_base0 = mem_ptr0;
702 adapter->ahw.pci_len0 = pci_len0;
703 adapter->ahw.pci_base1 = mem_ptr1;
704 adapter->ahw.pci_base2 = mem_ptr2;
706 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
709 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
710 db_len = pci_resource_len(pdev, 4);
713 printk(KERN_ERR "%s: doorbell is disabled\n",
714 netxen_nic_driver_name);
719 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
721 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
722 netxen_nic_driver_name);
728 adapter->ahw.db_base = db_ptr;
729 adapter->ahw.db_len = db_len;
733 netxen_cleanup_pci_map(adapter);
738 netxen_start_firmware(struct netxen_adapter *adapter)
740 int val, err, first_boot;
741 struct pci_dev *pdev = adapter->pdev;
743 if (!netxen_can_start_firmware(adapter))
746 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
748 err = netxen_check_hw_init(adapter, first_boot);
750 dev_err(&pdev->dev, "error in init HW init sequence\n");
754 netxen_request_firmware(adapter);
756 err = netxen_need_fw_reset(adapter);
762 if (first_boot != 0x55555555) {
763 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
764 netxen_pinit_from_rom(adapter, 0);
768 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
769 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
770 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
772 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
773 netxen_set_port_mode(adapter);
775 err = netxen_load_firmware(adapter);
779 netxen_release_firmware(adapter);
781 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
783 /* Initialize multicast addr pool owners */
785 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
787 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
791 err = netxen_init_dummy_dma(adapter);
796 * Tell the hardware our version number.
798 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
799 | ((_NETXEN_NIC_LINUX_MINOR << 8))
800 | (_NETXEN_NIC_LINUX_SUBVERSION);
801 NXWR32(adapter, CRB_DRIVER_VERSION, val);
803 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
806 /* Handshake with the card before we register the devices. */
807 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
809 netxen_free_dummy_dma(adapter);
813 nx_update_dma_mask(adapter);
815 netxen_nic_get_firmware_info(adapter);
816 netxen_check_options(adapter);
821 netxen_release_firmware(adapter);
826 netxen_nic_request_irq(struct netxen_adapter *adapter)
828 irq_handler_t handler;
829 struct nx_host_sds_ring *sds_ring;
832 unsigned long flags = IRQF_SAMPLE_RANDOM;
833 struct net_device *netdev = adapter->netdev;
834 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
836 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
837 handler = netxen_msix_intr;
838 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
839 handler = netxen_msi_intr;
841 flags |= IRQF_SHARED;
842 handler = netxen_intr;
844 adapter->irq = netdev->irq;
846 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
847 sds_ring = &recv_ctx->sds_rings[ring];
848 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
849 err = request_irq(sds_ring->irq, handler,
850 flags, sds_ring->name, sds_ring);
859 netxen_nic_free_irq(struct netxen_adapter *adapter)
862 struct nx_host_sds_ring *sds_ring;
864 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
866 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
867 sds_ring = &recv_ctx->sds_rings[ring];
868 free_irq(sds_ring->irq, sds_ring);
873 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
875 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
876 adapter->coal.normal.data.rx_time_us =
877 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
878 adapter->coal.normal.data.rx_packets =
879 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
880 adapter->coal.normal.data.tx_time_us =
881 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
882 adapter->coal.normal.data.tx_packets =
883 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
887 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
891 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
894 err = adapter->init_port(adapter, adapter->physical_port);
896 printk(KERN_ERR "%s: Failed to initialize port %d\n",
897 netxen_nic_driver_name, adapter->portnum);
900 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
901 adapter->macaddr_set(adapter, netdev->dev_addr);
903 adapter->set_multi(netdev);
904 adapter->set_mtu(adapter, netdev->mtu);
906 adapter->ahw.linkup = 0;
908 if (adapter->max_sds_rings > 1)
909 netxen_config_rss(adapter, 1);
911 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
912 netxen_config_intr_coalesce(adapter);
914 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
915 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
917 netxen_napi_enable(adapter);
919 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
920 netxen_linkevent_request(adapter, 1);
922 netxen_nic_set_link_parameters(adapter);
924 set_bit(__NX_DEV_UP, &adapter->state);
929 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
931 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
934 clear_bit(__NX_DEV_UP, &adapter->state);
936 spin_lock(&adapter->tx_clean_lock);
937 netif_carrier_off(netdev);
938 netif_tx_disable(netdev);
940 if (adapter->stop_port)
941 adapter->stop_port(adapter);
943 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
944 netxen_p3_free_mac_list(adapter);
946 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
948 netxen_napi_disable(adapter);
950 netxen_release_tx_buffers(adapter);
951 spin_unlock(&adapter->tx_clean_lock);
956 netxen_nic_attach(struct netxen_adapter *adapter)
958 struct net_device *netdev = adapter->netdev;
959 struct pci_dev *pdev = adapter->pdev;
961 struct nx_host_rds_ring *rds_ring;
962 struct nx_host_tx_ring *tx_ring;
964 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
967 err = netxen_init_firmware(adapter);
971 err = netxen_napi_add(adapter, netdev);
975 err = netxen_alloc_sw_resources(adapter);
977 printk(KERN_ERR "%s: Error in setting sw resources\n",
982 err = netxen_alloc_hw_resources(adapter);
984 printk(KERN_ERR "%s: Error in setting hw resources\n",
986 goto err_out_free_sw;
989 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
990 tx_ring = adapter->tx_ring;
991 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
992 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
994 tx_ring->producer = 0;
995 tx_ring->sw_consumer = 0;
997 netxen_nic_update_cmd_producer(adapter, tx_ring);
998 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1001 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1002 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1003 netxen_post_rx_buffers(adapter, ring, rds_ring);
1006 err = netxen_nic_request_irq(adapter);
1008 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1010 goto err_out_free_rxbuf;
1013 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1014 netxen_nic_init_coalesce_defaults(adapter);
1016 netxen_create_sysfs_entries(adapter);
1018 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1022 netxen_release_rx_buffers(adapter);
1023 netxen_free_hw_resources(adapter);
1025 netxen_free_sw_resources(adapter);
1030 netxen_nic_detach(struct netxen_adapter *adapter)
1032 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1035 netxen_remove_sysfs_entries(adapter);
1037 netxen_free_hw_resources(adapter);
1038 netxen_release_rx_buffers(adapter);
1039 netxen_nic_free_irq(adapter);
1040 netxen_napi_del(adapter);
1041 netxen_free_sw_resources(adapter);
1047 netxen_nic_reset_context(struct netxen_adapter *adapter)
1050 struct net_device *netdev = adapter->netdev;
1052 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1055 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1057 netif_device_detach(netdev);
1059 if (netif_running(netdev))
1060 netxen_nic_down(adapter, netdev);
1062 netxen_nic_detach(adapter);
1064 if (netif_running(netdev)) {
1065 err = netxen_nic_attach(adapter);
1067 err = netxen_nic_up(adapter, netdev);
1073 netif_device_attach(netdev);
1077 clear_bit(__NX_RESETTING, &adapter->state);
1082 netxen_setup_netdev(struct netxen_adapter *adapter,
1083 struct net_device *netdev)
1086 struct pci_dev *pdev = adapter->pdev;
1088 adapter->rx_csum = 1;
1089 adapter->mc_enabled = 0;
1090 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1091 adapter->max_mc_count = 38;
1093 adapter->max_mc_count = 16;
1095 netdev->netdev_ops = &netxen_netdev_ops;
1096 netdev->watchdog_timeo = 2*HZ;
1098 netxen_nic_change_mtu(netdev, netdev->mtu);
1100 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1102 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1103 netdev->features |= (NETIF_F_GRO);
1104 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1106 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1107 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1108 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1111 if (adapter->pci_using_dac) {
1112 netdev->features |= NETIF_F_HIGHDMA;
1113 netdev->vlan_features |= NETIF_F_HIGHDMA;
1116 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1117 netdev->features |= (NETIF_F_HW_VLAN_TX);
1119 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1120 netdev->features |= NETIF_F_LRO;
1122 netdev->irq = adapter->msix_entries[0].vector;
1124 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1126 if (netxen_read_mac_addr(adapter))
1127 dev_warn(&pdev->dev, "failed to read mac addr\n");
1129 netif_carrier_off(netdev);
1130 netif_stop_queue(netdev);
1132 err = register_netdev(netdev);
1134 dev_err(&pdev->dev, "failed to register net device\n");
1141 static int __devinit
1142 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1144 struct net_device *netdev = NULL;
1145 struct netxen_adapter *adapter = NULL;
1147 int pci_func_id = PCI_FUNC(pdev->devfn);
1148 uint8_t revision_id;
1150 if (pdev->class != 0x020000) {
1151 printk(KERN_DEBUG "NetXen function %d, class %x will not "
1152 "be enabled.\n",pci_func_id, pdev->class);
1156 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1157 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1158 "will not be enabled.\n",
1159 NX_P3_A0, NX_P3_B1);
1163 if ((err = pci_enable_device(pdev)))
1166 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1168 goto err_out_disable_pdev;
1171 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1172 goto err_out_disable_pdev;
1174 pci_set_master(pdev);
1176 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1178 dev_err(&pdev->dev, "failed to allocate net_device\n");
1180 goto err_out_free_res;
1183 SET_NETDEV_DEV(netdev, &pdev->dev);
1185 adapter = netdev_priv(netdev);
1186 adapter->netdev = netdev;
1187 adapter->pdev = pdev;
1188 adapter->ahw.pci_func = pci_func_id;
1190 revision_id = pdev->revision;
1191 adapter->ahw.revision_id = revision_id;
1193 err = nx_set_dma_mask(adapter);
1195 goto err_out_free_netdev;
1197 rwlock_init(&adapter->adapter_lock);
1198 spin_lock_init(&adapter->tx_clean_lock);
1199 INIT_LIST_HEAD(&adapter->mac_list);
1201 err = netxen_setup_pci_map(adapter);
1203 goto err_out_free_netdev;
1205 /* This will be reset for mezz cards */
1206 adapter->portnum = pci_func_id;
1208 err = netxen_nic_get_board_info(adapter);
1210 dev_err(&pdev->dev, "Error getting board config info.\n");
1211 goto err_out_iounmap;
1214 netxen_initialize_adapter_ops(adapter);
1216 /* Mezz cards have PCI function 0,2,3 enabled */
1217 switch (adapter->ahw.board_type) {
1218 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1219 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1220 if (pci_func_id >= 2)
1221 adapter->portnum = pci_func_id - 2;
1227 err = netxen_start_firmware(adapter);
1229 goto err_out_iounmap;
1232 * See if the firmware gave us a virtual-physical port mapping.
1234 adapter->physical_port = adapter->portnum;
1235 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1236 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1237 if (i != 0x55555555)
1238 adapter->physical_port = i;
1241 netxen_nic_clear_stats(adapter);
1243 netxen_setup_intr(adapter);
1245 err = netxen_setup_netdev(adapter, netdev);
1247 goto err_out_disable_msi;
1249 pci_set_drvdata(pdev, adapter);
1251 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1253 switch (adapter->ahw.port_type) {
1254 case NETXEN_NIC_GBE:
1255 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1256 adapter->netdev->name);
1258 case NETXEN_NIC_XGBE:
1259 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1260 adapter->netdev->name);
1266 err_out_disable_msi:
1267 netxen_teardown_intr(adapter);
1269 netxen_free_dummy_dma(adapter);
1271 nx_decr_dev_ref_cnt(adapter);
1274 netxen_cleanup_pci_map(adapter);
1276 err_out_free_netdev:
1277 free_netdev(netdev);
1280 pci_release_regions(pdev);
1282 err_out_disable_pdev:
1283 pci_set_drvdata(pdev, NULL);
1284 pci_disable_device(pdev);
1288 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1290 struct netxen_adapter *adapter;
1291 struct net_device *netdev;
1293 adapter = pci_get_drvdata(pdev);
1294 if (adapter == NULL)
1297 netdev = adapter->netdev;
1299 netxen_cancel_fw_work(adapter);
1301 unregister_netdev(netdev);
1303 cancel_work_sync(&adapter->tx_timeout_task);
1305 netxen_nic_detach(adapter);
1307 nx_decr_dev_ref_cnt(adapter);
1309 if (adapter->portnum == 0)
1310 netxen_free_dummy_dma(adapter);
1312 clear_bit(__NX_RESETTING, &adapter->state);
1314 netxen_teardown_intr(adapter);
1316 netxen_cleanup_pci_map(adapter);
1318 netxen_release_firmware(adapter);
1320 pci_release_regions(pdev);
1321 pci_disable_device(pdev);
1322 pci_set_drvdata(pdev, NULL);
1324 free_netdev(netdev);
1326 static int __netxen_nic_shutdown(struct pci_dev *pdev)
1328 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1329 struct net_device *netdev = adapter->netdev;
1332 netif_device_detach(netdev);
1334 netxen_cancel_fw_work(adapter);
1336 if (netif_running(netdev))
1337 netxen_nic_down(adapter, netdev);
1339 cancel_work_sync(&adapter->tx_timeout_task);
1341 netxen_nic_detach(adapter);
1343 if (adapter->portnum == 0)
1344 netxen_free_dummy_dma(adapter);
1346 nx_decr_dev_ref_cnt(adapter);
1348 clear_bit(__NX_RESETTING, &adapter->state);
1350 retval = pci_save_state(pdev);
1354 if (netxen_nic_wol_supported(adapter)) {
1355 pci_enable_wake(pdev, PCI_D3cold, 1);
1356 pci_enable_wake(pdev, PCI_D3hot, 1);
1359 pci_disable_device(pdev);
1363 static void netxen_nic_shutdown(struct pci_dev *pdev)
1365 if (__netxen_nic_shutdown(pdev))
1370 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1374 retval = __netxen_nic_shutdown(pdev);
1378 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1383 netxen_nic_resume(struct pci_dev *pdev)
1385 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1386 struct net_device *netdev = adapter->netdev;
1389 pci_set_power_state(pdev, PCI_D0);
1390 pci_restore_state(pdev);
1392 err = pci_enable_device(pdev);
1396 adapter->curr_window = 255;
1398 err = netxen_start_firmware(adapter);
1400 dev_err(&pdev->dev, "failed to start firmware\n");
1404 if (netif_running(netdev)) {
1405 err = netxen_nic_attach(adapter);
1409 err = netxen_nic_up(adapter, netdev);
1411 goto err_out_detach;
1413 netif_device_attach(netdev);
1416 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1419 netxen_nic_detach(adapter);
1421 nx_decr_dev_ref_cnt(adapter);
1426 static int netxen_nic_open(struct net_device *netdev)
1428 struct netxen_adapter *adapter = netdev_priv(netdev);
1431 if (adapter->driver_mismatch)
1434 err = netxen_nic_attach(adapter);
1438 err = netxen_nic_up(adapter, netdev);
1442 netif_start_queue(netdev);
1447 netxen_nic_detach(adapter);
1452 * netxen_nic_close - Disables a network interface entry point
1454 static int netxen_nic_close(struct net_device *netdev)
1456 struct netxen_adapter *adapter = netdev_priv(netdev);
1458 netxen_nic_down(adapter, netdev);
1463 netxen_tso_check(struct net_device *netdev,
1464 struct nx_host_tx_ring *tx_ring,
1465 struct cmd_desc_type0 *first_desc,
1466 struct sk_buff *skb)
1468 u8 opcode = TX_ETHER_PKT;
1469 __be16 protocol = skb->protocol;
1470 u16 flags = 0, vid = 0;
1472 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1473 struct cmd_desc_type0 *hwdesc;
1474 struct vlan_ethhdr *vh;
1476 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1478 vh = (struct vlan_ethhdr *)skb->data;
1479 protocol = vh->h_vlan_encapsulated_proto;
1480 flags = FLAGS_VLAN_TAGGED;
1482 } else if (vlan_tx_tag_present(skb)) {
1484 flags = FLAGS_VLAN_OOB;
1485 vid = vlan_tx_tag_get(skb);
1486 netxen_set_tx_vlan_tci(first_desc, vid);
1490 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1491 skb_shinfo(skb)->gso_size > 0) {
1493 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1495 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1496 first_desc->total_hdr_length = hdr_len;
1498 first_desc->total_hdr_length += VLAN_HLEN;
1499 first_desc->tcp_hdr_offset = VLAN_HLEN;
1500 first_desc->ip_hdr_offset = VLAN_HLEN;
1501 /* Only in case of TSO on vlan device */
1502 flags |= FLAGS_VLAN_TAGGED;
1505 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1506 TX_TCP_LSO6 : TX_TCP_LSO;
1509 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1512 if (protocol == cpu_to_be16(ETH_P_IP)) {
1513 l4proto = ip_hdr(skb)->protocol;
1515 if (l4proto == IPPROTO_TCP)
1516 opcode = TX_TCP_PKT;
1517 else if(l4proto == IPPROTO_UDP)
1518 opcode = TX_UDP_PKT;
1519 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1520 l4proto = ipv6_hdr(skb)->nexthdr;
1522 if (l4proto == IPPROTO_TCP)
1523 opcode = TX_TCPV6_PKT;
1524 else if(l4proto == IPPROTO_UDP)
1525 opcode = TX_UDPV6_PKT;
1529 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1530 first_desc->ip_hdr_offset += skb_network_offset(skb);
1531 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1536 /* For LSO, we need to copy the MAC/IP/TCP headers into
1537 * the descriptor ring
1539 producer = tx_ring->producer;
1544 /* Create a TSO vlan header template for firmware */
1546 hwdesc = &tx_ring->desc_head[producer];
1547 tx_ring->cmd_buf_arr[producer].skb = NULL;
1549 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1550 hdr_len + VLAN_HLEN);
1552 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1553 skb_copy_from_linear_data(skb, vh, 12);
1554 vh->h_vlan_proto = htons(ETH_P_8021Q);
1555 vh->h_vlan_TCI = htons(vid);
1556 skb_copy_from_linear_data_offset(skb, 12,
1557 (char *)vh + 16, copy_len - 16);
1559 copied = copy_len - VLAN_HLEN;
1562 producer = get_next_index(producer, tx_ring->num_desc);
1565 while (copied < hdr_len) {
1567 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1568 (hdr_len - copied));
1570 hwdesc = &tx_ring->desc_head[producer];
1571 tx_ring->cmd_buf_arr[producer].skb = NULL;
1573 skb_copy_from_linear_data_offset(skb, copied,
1574 (char *)hwdesc + offset, copy_len);
1579 producer = get_next_index(producer, tx_ring->num_desc);
1582 tx_ring->producer = producer;
1587 netxen_map_tx_skb(struct pci_dev *pdev,
1588 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1590 struct netxen_skb_frag *nf;
1591 struct skb_frag_struct *frag;
1595 nr_frags = skb_shinfo(skb)->nr_frags;
1596 nf = &pbuf->frag_array[0];
1598 map = pci_map_single(pdev, skb->data,
1599 skb_headlen(skb), PCI_DMA_TODEVICE);
1600 if (pci_dma_mapping_error(pdev, map))
1604 nf->length = skb_headlen(skb);
1606 for (i = 0; i < nr_frags; i++) {
1607 frag = &skb_shinfo(skb)->frags[i];
1608 nf = &pbuf->frag_array[i+1];
1610 map = pci_map_page(pdev, frag->page, frag->page_offset,
1611 frag->size, PCI_DMA_TODEVICE);
1612 if (pci_dma_mapping_error(pdev, map))
1616 nf->length = frag->size;
1623 nf = &pbuf->frag_array[i+1];
1624 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1627 nf = &pbuf->frag_array[0];
1628 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1635 netxen_clear_cmddesc(u64 *desc)
1642 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1644 struct netxen_adapter *adapter = netdev_priv(netdev);
1645 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1646 struct netxen_cmd_buffer *pbuf;
1647 struct netxen_skb_frag *buffrag;
1648 struct cmd_desc_type0 *hwdesc, *first_desc;
1649 struct pci_dev *pdev;
1653 int frag_count, no_of_desc;
1654 u32 num_txd = tx_ring->num_desc;
1656 frag_count = skb_shinfo(skb)->nr_frags + 1;
1658 /* 4 fragments per cmd des */
1659 no_of_desc = (frag_count + 3) >> 2;
1661 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
1662 netif_stop_queue(netdev);
1663 return NETDEV_TX_BUSY;
1666 producer = tx_ring->producer;
1667 pbuf = &tx_ring->cmd_buf_arr[producer];
1669 pdev = adapter->pdev;
1671 if (netxen_map_tx_skb(pdev, skb, pbuf))
1675 pbuf->frag_count = frag_count;
1677 first_desc = hwdesc = &tx_ring->desc_head[producer];
1678 netxen_clear_cmddesc((u64 *)hwdesc);
1680 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1681 netxen_set_tx_port(first_desc, adapter->portnum);
1683 for (i = 0; i < frag_count; i++) {
1687 if ((k == 0) && (i > 0)) {
1688 /* move to next desc.*/
1689 producer = get_next_index(producer, num_txd);
1690 hwdesc = &tx_ring->desc_head[producer];
1691 netxen_clear_cmddesc((u64 *)hwdesc);
1692 tx_ring->cmd_buf_arr[producer].skb = NULL;
1695 buffrag = &pbuf->frag_array[i];
1697 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1700 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1703 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1706 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1709 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1714 tx_ring->producer = get_next_index(producer, num_txd);
1716 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1718 netxen_nic_update_cmd_producer(adapter, tx_ring);
1720 adapter->stats.txbytes += skb->len;
1721 adapter->stats.xmitcalled++;
1723 return NETDEV_TX_OK;
1726 adapter->stats.txdropped++;
1727 dev_kfree_skb_any(skb);
1728 return NETDEV_TX_OK;
1731 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1733 struct net_device *netdev = adapter->netdev;
1734 uint32_t temp, temp_state, temp_val;
1737 temp = NXRD32(adapter, CRB_TEMP_STATE);
1739 temp_state = nx_get_temp_state(temp);
1740 temp_val = nx_get_temp_val(temp);
1742 if (temp_state == NX_TEMP_PANIC) {
1744 "%s: Device temperature %d degrees C exceeds"
1745 " maximum allowed. Hardware has been shut down.\n",
1746 netdev->name, temp_val);
1748 } else if (temp_state == NX_TEMP_WARN) {
1749 if (adapter->temp == NX_TEMP_NORMAL) {
1751 "%s: Device temperature %d degrees C "
1752 "exceeds operating range."
1753 " Immediate action needed.\n",
1754 netdev->name, temp_val);
1757 if (adapter->temp == NX_TEMP_WARN) {
1759 "%s: Device temperature is now %d degrees C"
1760 " in normal range.\n", netdev->name,
1764 adapter->temp = temp_state;
1768 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1770 struct net_device *netdev = adapter->netdev;
1772 if (adapter->ahw.linkup && !linkup) {
1773 printk(KERN_INFO "%s: %s NIC Link is down\n",
1774 netxen_nic_driver_name, netdev->name);
1775 adapter->ahw.linkup = 0;
1776 if (netif_running(netdev)) {
1777 netif_carrier_off(netdev);
1778 netif_stop_queue(netdev);
1780 adapter->link_changed = !adapter->has_link_events;
1781 } else if (!adapter->ahw.linkup && linkup) {
1782 printk(KERN_INFO "%s: %s NIC Link is up\n",
1783 netxen_nic_driver_name, netdev->name);
1784 adapter->ahw.linkup = 1;
1785 if (netif_running(netdev)) {
1786 netif_carrier_on(netdev);
1787 netif_wake_queue(netdev);
1789 adapter->link_changed = !adapter->has_link_events;
1793 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1795 u32 val, port, linkup;
1797 port = adapter->physical_port;
1799 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1800 val = NXRD32(adapter, CRB_XG_STATE_P3);
1801 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1802 linkup = (val == XG_LINK_UP_P3);
1804 val = NXRD32(adapter, CRB_XG_STATE);
1805 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1806 linkup = (val >> port) & 1;
1808 val = (val >> port*8) & 0xff;
1809 linkup = (val == XG_LINK_UP);
1813 netxen_advert_link_change(adapter, linkup);
1816 static void netxen_tx_timeout(struct net_device *netdev)
1818 struct netxen_adapter *adapter = netdev_priv(netdev);
1820 if (test_bit(__NX_RESETTING, &adapter->state))
1823 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1824 schedule_work(&adapter->tx_timeout_task);
1827 static void netxen_reset_task(struct work_struct *work)
1829 struct netxen_adapter *adapter =
1830 container_of(work, struct netxen_adapter, tx_timeout_task);
1832 if (!netif_running(adapter->netdev))
1835 if (test_bit(__NX_RESETTING, &adapter->state))
1838 netxen_napi_disable(adapter);
1840 adapter->netdev->trans_start = jiffies;
1842 netxen_napi_enable(adapter);
1843 netif_wake_queue(adapter->netdev);
1846 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1848 struct netxen_adapter *adapter = netdev_priv(netdev);
1849 struct net_device_stats *stats = &adapter->net_stats;
1851 memset(stats, 0, sizeof(*stats));
1853 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1854 stats->tx_packets = adapter->stats.xmitfinished;
1855 stats->rx_bytes = adapter->stats.rxbytes;
1856 stats->tx_bytes = adapter->stats.txbytes;
1857 stats->rx_dropped = adapter->stats.rxdropped;
1858 stats->tx_dropped = adapter->stats.txdropped;
1863 static irqreturn_t netxen_intr(int irq, void *data)
1865 struct nx_host_sds_ring *sds_ring = data;
1866 struct netxen_adapter *adapter = sds_ring->adapter;
1869 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1871 if (!(status & adapter->legacy_intr.int_vec_bit))
1874 if (adapter->ahw.revision_id >= NX_P3_B1) {
1875 /* check interrupt state machine, to be sure */
1876 status = adapter->pci_read_immediate(adapter,
1878 if (!ISR_LEGACY_INT_TRIGGERED(status))
1882 unsigned long our_int = 0;
1884 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1886 /* not our interrupt */
1887 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1890 /* claim interrupt */
1891 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1894 /* clear interrupt */
1895 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1896 netxen_nic_disable_int(sds_ring);
1898 adapter->pci_write_immediate(adapter,
1899 adapter->legacy_intr.tgt_status_reg,
1901 /* read twice to ensure write is flushed */
1902 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1903 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1905 napi_schedule(&sds_ring->napi);
1910 static irqreturn_t netxen_msi_intr(int irq, void *data)
1912 struct nx_host_sds_ring *sds_ring = data;
1913 struct netxen_adapter *adapter = sds_ring->adapter;
1915 /* clear interrupt */
1916 adapter->pci_write_immediate(adapter,
1917 adapter->msi_tgt_status, 0xffffffff);
1919 napi_schedule(&sds_ring->napi);
1923 static irqreturn_t netxen_msix_intr(int irq, void *data)
1925 struct nx_host_sds_ring *sds_ring = data;
1927 napi_schedule(&sds_ring->napi);
1931 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1933 struct nx_host_sds_ring *sds_ring =
1934 container_of(napi, struct nx_host_sds_ring, napi);
1936 struct netxen_adapter *adapter = sds_ring->adapter;
1941 tx_complete = netxen_process_cmd_ring(adapter);
1943 work_done = netxen_process_rcv_ring(sds_ring, budget);
1945 if ((work_done < budget) && tx_complete) {
1946 napi_complete(&sds_ring->napi);
1947 if (netif_running(adapter->netdev))
1948 netxen_nic_enable_int(sds_ring);
1954 #ifdef CONFIG_NET_POLL_CONTROLLER
1955 static void netxen_nic_poll_controller(struct net_device *netdev)
1957 struct netxen_adapter *adapter = netdev_priv(netdev);
1958 disable_irq(adapter->irq);
1959 netxen_intr(adapter->irq, adapter);
1960 enable_irq(adapter->irq);
1965 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
1968 if (netxen_api_lock(adapter))
1971 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1973 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
1975 netxen_api_unlock(adapter);
1980 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
1983 if (netxen_api_lock(adapter))
1986 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1987 WARN_ON(count == 0);
1989 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
1992 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
1994 netxen_api_unlock(adapter);
1999 netxen_can_start_firmware(struct netxen_adapter *adapter)
2004 if (netxen_api_lock(adapter))
2007 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2009 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2014 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2017 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2019 netxen_api_unlock(adapter);
2025 netxen_schedule_work(struct netxen_adapter *adapter,
2026 work_func_t func, int delay)
2028 INIT_DELAYED_WORK(&adapter->fw_work, func);
2029 schedule_delayed_work(&adapter->fw_work, delay);
2033 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2035 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2038 cancel_delayed_work_sync(&adapter->fw_work);
2042 netxen_attach_work(struct work_struct *work)
2044 struct netxen_adapter *adapter = container_of(work,
2045 struct netxen_adapter, fw_work.work);
2046 struct net_device *netdev = adapter->netdev;
2049 if (netif_running(netdev)) {
2050 err = netxen_nic_attach(adapter);
2054 err = netxen_nic_up(adapter, netdev);
2056 netxen_nic_detach(adapter);
2062 netif_device_attach(netdev);
2065 adapter->fw_fail_cnt = 0;
2066 clear_bit(__NX_RESETTING, &adapter->state);
2067 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2071 netxen_fwinit_work(struct work_struct *work)
2073 struct netxen_adapter *adapter = container_of(work,
2074 struct netxen_adapter, fw_work.work);
2077 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2079 switch (dev_state) {
2082 netxen_start_firmware(adapter);
2083 netxen_schedule_work(adapter, netxen_attach_work, 0);
2086 case NX_DEV_INITALIZING:
2087 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2088 netxen_schedule_work(adapter,
2089 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2099 nx_incr_dev_ref_cnt(adapter);
2100 clear_bit(__NX_RESETTING, &adapter->state);
2104 netxen_detach_work(struct work_struct *work)
2106 struct netxen_adapter *adapter = container_of(work,
2107 struct netxen_adapter, fw_work.work);
2108 struct net_device *netdev = adapter->netdev;
2112 netif_device_detach(netdev);
2114 if (netif_running(netdev))
2115 netxen_nic_down(adapter, netdev);
2117 netxen_nic_detach(adapter);
2119 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2121 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2123 if (status & NX_RCODE_FATAL_ERROR)
2126 if (adapter->temp == NX_TEMP_PANIC)
2129 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2131 adapter->fw_wait_cnt = 0;
2132 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2136 netxen_check_health(struct netxen_adapter *adapter)
2138 u32 state, heartbit;
2139 struct net_device *netdev = adapter->netdev;
2141 if (netxen_nic_check_temp(adapter))
2144 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2145 if (state == NX_DEV_NEED_RESET)
2148 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2151 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2152 if (heartbit != adapter->heartbit) {
2153 adapter->heartbit = heartbit;
2154 adapter->fw_fail_cnt = 0;
2158 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2161 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2163 dev_info(&netdev->dev, "firmware hang detected\n");
2166 if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
2167 netxen_schedule_work(adapter, netxen_detach_work, 0);
2172 netxen_fw_poll_work(struct work_struct *work)
2174 struct netxen_adapter *adapter = container_of(work,
2175 struct netxen_adapter, fw_work.work);
2177 if (test_bit(__NX_RESETTING, &adapter->state))
2180 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2181 if (!adapter->has_link_events) {
2183 netxen_nic_handle_phy_intr(adapter);
2185 if (adapter->link_changed)
2186 netxen_nic_set_link_parameters(adapter);
2190 if (netxen_check_health(adapter))
2194 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2198 netxen_store_bridged_mode(struct device *dev,
2199 struct device_attribute *attr, const char *buf, size_t len)
2201 struct net_device *net = to_net_dev(dev);
2202 struct netxen_adapter *adapter = netdev_priv(net);
2206 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2209 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2212 if (strict_strtoul(buf, 2, &new))
2215 if (!netxen_config_bridged_mode(adapter, !!new))
2223 netxen_show_bridged_mode(struct device *dev,
2224 struct device_attribute *attr, char *buf)
2226 struct net_device *net = to_net_dev(dev);
2227 struct netxen_adapter *adapter;
2228 int bridged_mode = 0;
2230 adapter = netdev_priv(net);
2232 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2233 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2235 return sprintf(buf, "%d\n", bridged_mode);
2238 static struct device_attribute dev_attr_bridged_mode = {
2239 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2240 .show = netxen_show_bridged_mode,
2241 .store = netxen_store_bridged_mode,
2245 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2247 struct net_device *netdev = adapter->netdev;
2248 struct device *dev = &netdev->dev;
2250 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2251 /* bridged_mode control */
2252 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2253 dev_warn(&netdev->dev,
2254 "failed to create bridged_mode sysfs entry\n");
2260 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2262 struct net_device *netdev = adapter->netdev;
2263 struct device *dev = &netdev->dev;
2265 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2266 device_remove_file(dev, &dev_attr_bridged_mode);
2271 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2274 netxen_destip_supported(struct netxen_adapter *adapter)
2276 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2279 if (adapter->ahw.cut_through)
2285 static int netxen_netdev_event(struct notifier_block *this,
2286 unsigned long event, void *ptr)
2288 struct netxen_adapter *adapter;
2289 struct net_device *dev = (struct net_device *)ptr;
2290 struct in_device *indev;
2296 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2297 dev = vlan_dev_real_dev(dev);
2301 if (!is_netxen_netdev(dev))
2304 adapter = netdev_priv(dev);
2306 if (!adapter || !netxen_destip_supported(adapter))
2309 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2312 indev = in_dev_get(dev);
2319 netxen_config_ipaddr(adapter,
2320 ifa->ifa_address, NX_IP_UP);
2323 netxen_config_ipaddr(adapter,
2324 ifa->ifa_address, NX_IP_DOWN);
2329 } endfor_ifa(indev);
2337 netxen_inetaddr_event(struct notifier_block *this,
2338 unsigned long event, void *ptr)
2340 struct netxen_adapter *adapter;
2341 struct net_device *dev;
2343 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2345 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2348 if (dev == NULL || !netif_running(dev))
2351 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2352 dev = vlan_dev_real_dev(dev);
2356 if (!is_netxen_netdev(dev))
2359 adapter = netdev_priv(dev);
2361 if (!adapter || !netxen_destip_supported(adapter))
2364 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2369 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2372 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2382 static struct notifier_block netxen_netdev_cb = {
2383 .notifier_call = netxen_netdev_event,
2386 static struct notifier_block netxen_inetaddr_cb = {
2387 .notifier_call = netxen_inetaddr_event,
2391 static struct pci_driver netxen_driver = {
2392 .name = netxen_nic_driver_name,
2393 .id_table = netxen_pci_tbl,
2394 .probe = netxen_nic_probe,
2395 .remove = __devexit_p(netxen_nic_remove),
2397 .suspend = netxen_nic_suspend,
2398 .resume = netxen_nic_resume,
2400 .shutdown = netxen_nic_shutdown
2403 static int __init netxen_init_module(void)
2405 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2408 register_netdevice_notifier(&netxen_netdev_cb);
2409 register_inetaddr_notifier(&netxen_inetaddr_cb);
2412 return pci_register_driver(&netxen_driver);
2415 module_init(netxen_init_module);
2417 static void __exit netxen_exit_module(void)
2419 pci_unregister_driver(&netxen_driver);
2422 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2423 unregister_netdevice_notifier(&netxen_netdev_cb);
2427 module_exit(netxen_exit_module);