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* Copyright (C) 2003 - 2009 NetXen, Inc.
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* Copyright (C) 2009 - QLogic Corporation.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* The full GNU General Public License is included in this distribution
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* in the file called "COPYING".
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/interrupt.h>
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#include "netxen_nic_hw.h"
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#include "netxen_nic.h"
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#include <linux/dma-mapping.h>
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#include <linux/if_vlan.h>
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#include <linux/ipv6.h>
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#include <linux/inetdevice.h>
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#include <linux/sysfs.h>
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#include <linux/aer.h>
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MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
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MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
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char netxen_nic_driver_name[] = "netxen_nic";
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static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
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NETXEN_NIC_LINUX_VERSIONID;
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static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
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/* Default to restricted 1G auto-neg mode */
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static int wol_port_mode = 5;
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static int use_msi = 1;
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static int use_msi_x = 1;
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static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
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module_param(auto_fw_reset, int, 0644);
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MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
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static int __devinit netxen_nic_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent);
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static void __devexit netxen_nic_remove(struct pci_dev *pdev);
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static int netxen_nic_open(struct net_device *netdev);
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static int netxen_nic_close(struct net_device *netdev);
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static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
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static void netxen_tx_timeout(struct net_device *netdev);
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static void netxen_tx_timeout_task(struct work_struct *work);
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static void netxen_fw_poll_work(struct work_struct *work);
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static void netxen_schedule_work(struct netxen_adapter *adapter,
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work_func_t func, int delay);
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static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
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static int netxen_nic_poll(struct napi_struct *napi, int budget);
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void netxen_nic_poll_controller(struct net_device *netdev);
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static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
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static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
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static void netxen_create_diag_entries(struct netxen_adapter *adapter);
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static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
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static int nx_dev_request_aer(struct netxen_adapter *adapter);
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static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
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static int netxen_can_start_firmware(struct netxen_adapter *adapter);
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static irqreturn_t netxen_intr(int irq, void *data);
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static irqreturn_t netxen_msi_intr(int irq, void *data);
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static irqreturn_t netxen_msix_intr(int irq, void *data);
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static void netxen_free_vlan_ip_list(struct netxen_adapter *);
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static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
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static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
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struct rtnl_link_stats64 *stats);
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static int netxen_nic_set_mac(struct net_device *netdev, void *p);
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/* PCI Device ID Table */
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#define ENTRY(device) \
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{PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
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.class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
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static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
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ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
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ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
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ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
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ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
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ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
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ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
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ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
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ENTRY(PCI_DEVICE_ID_NX3031),
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MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
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static uint32_t crb_cmd_producer[4] = {
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CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
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CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
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netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
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struct nx_host_tx_ring *tx_ring)
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NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
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static uint32_t crb_cmd_consumer[4] = {
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CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
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CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
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netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
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struct nx_host_tx_ring *tx_ring)
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NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
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static uint32_t msi_tgt_status[8] = {
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ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
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ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
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ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
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ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
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static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
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static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
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struct netxen_adapter *adapter = sds_ring->adapter;
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NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
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static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
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struct netxen_adapter *adapter = sds_ring->adapter;
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NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
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if (!NETXEN_IS_MSI_FAMILY(adapter))
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NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
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netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
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int size = sizeof(struct nx_host_sds_ring) * count;
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recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
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return recv_ctx->sds_rings == NULL;
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netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
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if (recv_ctx->sds_rings != NULL)
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kfree(recv_ctx->sds_rings);
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recv_ctx->sds_rings = NULL;
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netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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netif_napi_add(netdev, &sds_ring->napi,
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netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
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netxen_napi_del(struct netxen_adapter *adapter)
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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netif_napi_del(&sds_ring->napi);
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netxen_free_sds_rings(&adapter->recv_ctx);
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netxen_napi_enable(struct netxen_adapter *adapter)
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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napi_enable(&sds_ring->napi);
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netxen_nic_enable_int(sds_ring);
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netxen_napi_disable(struct netxen_adapter *adapter)
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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netxen_nic_disable_int(sds_ring);
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napi_synchronize(&sds_ring->napi);
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napi_disable(&sds_ring->napi);
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static int nx_set_dma_mask(struct netxen_adapter *adapter)
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struct pci_dev *pdev = adapter->pdev;
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uint64_t mask, cmask;
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adapter->pci_using_dac = 0;
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mask = DMA_BIT_MASK(32);
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cmask = DMA_BIT_MASK(32);
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if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
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mask = DMA_BIT_MASK(35);
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mask = DMA_BIT_MASK(39);
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if (pci_set_dma_mask(pdev, mask) == 0 &&
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pci_set_consistent_dma_mask(pdev, cmask) == 0) {
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adapter->pci_using_dac = 1;
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/* Update addressable range if firmware supports it */
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nx_update_dma_mask(struct netxen_adapter *adapter)
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int change, shift, err;
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uint64_t mask, old_mask, old_cmask;
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struct pci_dev *pdev = adapter->pdev;
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shift = NXRD32(adapter, CRB_DMA_SHIFT);
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if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
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else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
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old_mask = pdev->dma_mask;
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old_cmask = pdev->dev.coherent_dma_mask;
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mask = DMA_BIT_MASK(32+shift);
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err = pci_set_dma_mask(pdev, mask);
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if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
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err = pci_set_consistent_dma_mask(pdev, mask);
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dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
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pci_set_dma_mask(pdev, old_mask);
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pci_set_consistent_dma_mask(pdev, old_cmask);
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netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
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if (first_boot == 0x55555555) {
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/* This is the first boot after power up */
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NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
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if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
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/* PCI bus master workaround */
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first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
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if (!(first_boot & 0x4)) {
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NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
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NXRD32(adapter, NETXEN_PCIE_REG(0x4));
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/* This is the first boot after power up */
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first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
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if (first_boot != 0x80000f) {
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/* clear the register for future unloads/loads */
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NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
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/* Start P2 boot loader */
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val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
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NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
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val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
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if (++timeout > 5000)
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} while (val == NETXEN_BDINFO_MAGIC);
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static void netxen_set_port_mode(struct netxen_adapter *adapter)
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val = adapter->ahw.board_type;
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if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
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(val == NETXEN_BRDTYPE_P3_XG_LOM)) {
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if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
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data = NETXEN_PORT_MODE_802_3_AP;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else if (port_mode == NETXEN_PORT_MODE_XG) {
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data = NETXEN_PORT_MODE_XG;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
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data = NETXEN_PORT_MODE_AUTO_NEG_1G;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
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data = NETXEN_PORT_MODE_AUTO_NEG_XG;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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data = NETXEN_PORT_MODE_AUTO_NEG;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
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(wol_port_mode != NETXEN_PORT_MODE_XG) &&
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(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
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(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
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wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
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NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
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#define PCI_CAP_ID_GEN 0x10
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static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
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struct pci_dev *pdev;
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pdev = adapter->pdev;
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chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
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/* clear chicken3.25:24 */
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chicken &= 0xFCFFFFFF;
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* if gen1 and B0, set F1020 - if gen 2, do nothing
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* if gen2 set to F1000
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pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
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pci_read_config_dword(pdev, pos + 0x10, &control);
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if ((control & 0x000F0000) != 0x00020000) {
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/* set chicken3.24 if gen1 */
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chicken |= 0x01000000;
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dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
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/* set chicken3.24 if gen1 */
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chicken |= 0x01000000;
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dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
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if (adapter->ahw.revision_id == NX_P3_B0)
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NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
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pdevfuncsave = pdev->devfn;
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if (pdevfuncsave & 0x07)
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for (i = 0; i < 8; i++) {
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pci_read_config_dword(pdev, pos + 8, &control);
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pci_read_config_dword(pdev, pos + 8, &control);
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pci_write_config_dword(pdev, pos + 8, c8c9value);
457
pdev->devfn = pdevfuncsave;
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static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
465
pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
467
pci_read_config_dword(pdev, pos, &control);
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control |= PCI_MSIX_FLAGS_ENABLE;
472
pci_write_config_dword(pdev, pos, control);
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static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
480
for (i = 0; i < count; i++)
481
adapter->msix_entries[i].entry = i;
485
netxen_read_mac_addr(struct netxen_adapter *adapter)
490
struct net_device *netdev = adapter->netdev;
491
struct pci_dev *pdev = adapter->pdev;
493
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
494
if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
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if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
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p = (unsigned char *)&mac_addr;
502
for (i = 0; i < 6; i++)
503
netdev->dev_addr[i] = *(p + 5 - i);
505
memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
506
memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
508
/* set station address */
510
if (!is_valid_ether_addr(netdev->perm_addr))
511
dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
516
static int netxen_nic_set_mac(struct net_device *netdev, void *p)
518
struct netxen_adapter *adapter = netdev_priv(netdev);
519
struct sockaddr *addr = p;
521
if (!is_valid_ether_addr(addr->sa_data))
524
if (netif_running(netdev)) {
525
netif_device_detach(netdev);
526
netxen_napi_disable(adapter);
529
memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
530
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
531
adapter->macaddr_set(adapter, addr->sa_data);
533
if (netif_running(netdev)) {
534
netif_device_attach(netdev);
535
netxen_napi_enable(adapter);
540
static void netxen_set_multicast_list(struct net_device *dev)
542
struct netxen_adapter *adapter = netdev_priv(dev);
544
adapter->set_multi(dev);
547
static u32 netxen_fix_features(struct net_device *dev, u32 features)
549
if (!(features & NETIF_F_RXCSUM)) {
550
netdev_info(dev, "disabling LRO as RXCSUM is off\n");
552
features &= ~NETIF_F_LRO;
558
static int netxen_set_features(struct net_device *dev, u32 features)
560
struct netxen_adapter *adapter = netdev_priv(dev);
563
if (!((dev->features ^ features) & NETIF_F_LRO))
566
hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
567
: NETXEN_NIC_LRO_DISABLED;
569
if (netxen_config_hw_lro(adapter, hw_lro))
572
if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
578
static const struct net_device_ops netxen_netdev_ops = {
579
.ndo_open = netxen_nic_open,
580
.ndo_stop = netxen_nic_close,
581
.ndo_start_xmit = netxen_nic_xmit_frame,
582
.ndo_get_stats64 = netxen_nic_get_stats,
583
.ndo_validate_addr = eth_validate_addr,
584
.ndo_set_rx_mode = netxen_set_multicast_list,
585
.ndo_set_mac_address = netxen_nic_set_mac,
586
.ndo_change_mtu = netxen_nic_change_mtu,
587
.ndo_tx_timeout = netxen_tx_timeout,
588
.ndo_fix_features = netxen_fix_features,
589
.ndo_set_features = netxen_set_features,
590
#ifdef CONFIG_NET_POLL_CONTROLLER
591
.ndo_poll_controller = netxen_nic_poll_controller,
596
netxen_setup_intr(struct netxen_adapter *adapter)
598
struct netxen_legacy_intr_set *legacy_intrp;
599
struct pci_dev *pdev = adapter->pdev;
602
if (adapter->rss_supported) {
603
num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
604
MSIX_ENTRIES_PER_ADAPTER : 2;
608
adapter->max_sds_rings = 1;
610
adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
612
if (adapter->ahw.revision_id >= NX_P3_B0)
613
legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
615
legacy_intrp = &legacy_intr[0];
617
adapter->int_vec_bit = legacy_intrp->int_vec_bit;
618
adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
619
legacy_intrp->tgt_status_reg);
620
adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
621
legacy_intrp->tgt_mask_reg);
622
adapter->pci_int_reg = netxen_get_ioaddr(adapter,
623
legacy_intrp->pci_int_reg);
624
adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
626
if (adapter->ahw.revision_id >= NX_P3_B1)
627
adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
630
adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
633
netxen_set_msix_bit(pdev, 0);
635
if (adapter->msix_supported) {
637
netxen_init_msix_entries(adapter, num_msix);
638
err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
640
adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
641
netxen_set_msix_bit(pdev, 1);
643
if (adapter->rss_supported)
644
adapter->max_sds_rings = num_msix;
646
dev_info(&pdev->dev, "using msi-x interrupts\n");
651
pci_disable_msix(pdev);
653
/* fall through for msi */
656
if (use_msi && !pci_enable_msi(pdev)) {
657
adapter->flags |= NETXEN_NIC_MSI_ENABLED;
658
adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
659
msi_tgt_status[adapter->ahw.pci_func]);
660
dev_info(&pdev->dev, "using msi interrupts\n");
661
adapter->msix_entries[0].vector = pdev->irq;
665
dev_info(&pdev->dev, "using legacy interrupts\n");
666
adapter->msix_entries[0].vector = pdev->irq;
670
netxen_teardown_intr(struct netxen_adapter *adapter)
672
if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
673
pci_disable_msix(adapter->pdev);
674
if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
675
pci_disable_msi(adapter->pdev);
679
netxen_cleanup_pci_map(struct netxen_adapter *adapter)
681
if (adapter->ahw.db_base != NULL)
682
iounmap(adapter->ahw.db_base);
683
if (adapter->ahw.pci_base0 != NULL)
684
iounmap(adapter->ahw.pci_base0);
685
if (adapter->ahw.pci_base1 != NULL)
686
iounmap(adapter->ahw.pci_base1);
687
if (adapter->ahw.pci_base2 != NULL)
688
iounmap(adapter->ahw.pci_base2);
692
netxen_setup_pci_map(struct netxen_adapter *adapter)
694
void __iomem *db_ptr = NULL;
696
resource_size_t mem_base, db_base;
697
unsigned long mem_len, db_len = 0;
699
struct pci_dev *pdev = adapter->pdev;
700
int pci_func = adapter->ahw.pci_func;
701
struct netxen_hardware_context *ahw = &adapter->ahw;
706
* Set the CRB window to invalid. If any register in window 0 is
707
* accessed it should set the window to 0 and then reset it to 1.
709
adapter->ahw.crb_win = -1;
710
adapter->ahw.ocm_win = -1;
712
/* remap phys address */
713
mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
714
mem_len = pci_resource_len(pdev, 0);
716
/* 128 Meg of memory */
717
if (mem_len == NETXEN_PCI_128MB_SIZE) {
719
ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
720
ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
721
SECOND_PAGE_GROUP_SIZE);
722
ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
723
THIRD_PAGE_GROUP_SIZE);
724
if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
725
ahw->pci_base2 == NULL) {
726
dev_err(&pdev->dev, "failed to map PCI bar 0\n");
731
ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
733
} else if (mem_len == NETXEN_PCI_32MB_SIZE) {
735
ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
736
ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
737
SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
738
if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
739
dev_err(&pdev->dev, "failed to map PCI bar 0\n");
744
} else if (mem_len == NETXEN_PCI_2MB_SIZE) {
746
ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
747
if (ahw->pci_base0 == NULL) {
748
dev_err(&pdev->dev, "failed to map PCI bar 0\n");
751
ahw->pci_len0 = mem_len;
756
netxen_setup_hwops(adapter);
758
dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
760
if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
761
adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
762
NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
764
} else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
765
adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
766
NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
769
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
772
db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
773
db_len = pci_resource_len(pdev, 4);
776
printk(KERN_ERR "%s: doorbell is disabled\n",
777
netxen_nic_driver_name);
782
db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
784
printk(KERN_ERR "%s: Failed to allocate doorbell map.",
785
netxen_nic_driver_name);
791
adapter->ahw.db_base = db_ptr;
792
adapter->ahw.db_len = db_len;
796
netxen_cleanup_pci_map(adapter);
801
netxen_check_options(struct netxen_adapter *adapter)
803
u32 fw_major, fw_minor, fw_build;
804
char brd_name[NETXEN_MAX_SHORT_NAME];
808
struct pci_dev *pdev = adapter->pdev;
810
adapter->driver_mismatch = 0;
812
ptr32 = (int *)&serial_num;
813
offset = NX_FW_SERIAL_NUM_OFFSET;
814
for (i = 0; i < 8; i++) {
815
if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
816
dev_err(&pdev->dev, "error reading board info\n");
817
adapter->driver_mismatch = 1;
820
ptr32[i] = cpu_to_le32(val);
821
offset += sizeof(u32);
824
fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
825
fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
826
fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
828
adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
830
if (adapter->portnum == 0) {
831
get_brd_name_by_type(adapter->ahw.board_type, brd_name);
833
pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
834
module_name(THIS_MODULE),
835
brd_name, serial_num, adapter->ahw.revision_id);
838
if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
839
adapter->driver_mismatch = 1;
840
dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
841
fw_major, fw_minor, fw_build);
845
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
846
i = NXRD32(adapter, NETXEN_SRE_MISC);
847
adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
850
dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
851
fw_major, fw_minor, fw_build,
852
adapter->ahw.cut_through ? "cut-through" : "legacy");
854
if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
855
adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
857
if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
858
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
859
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
860
} else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
861
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
862
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
865
adapter->msix_supported = 0;
866
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
867
adapter->msix_supported = !!use_msi_x;
868
adapter->rss_supported = !!use_msi_x;
871
netxen_rom_fast_read(adapter,
872
NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
873
flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
875
if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
876
switch (adapter->ahw.board_type) {
877
case NETXEN_BRDTYPE_P2_SB31_10G:
878
case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
879
adapter->msix_supported = !!use_msi_x;
880
adapter->rss_supported = !!use_msi_x;
888
adapter->num_txd = MAX_CMD_DESCRIPTORS;
890
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
891
adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
892
adapter->max_rds_rings = 3;
894
adapter->num_lro_rxd = 0;
895
adapter->max_rds_rings = 2;
900
netxen_start_firmware(struct netxen_adapter *adapter)
902
int val, err, first_boot;
903
struct pci_dev *pdev = adapter->pdev;
905
/* required for NX2031 dummy dma */
906
err = nx_set_dma_mask(adapter);
910
if (!netxen_can_start_firmware(adapter))
913
first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
915
err = netxen_check_hw_init(adapter, first_boot);
917
dev_err(&pdev->dev, "error in init HW init sequence\n");
921
netxen_request_firmware(adapter);
923
err = netxen_need_fw_reset(adapter);
927
goto pcie_strap_init;
929
if (first_boot != 0x55555555) {
930
NXWR32(adapter, CRB_CMDPEG_STATE, 0);
931
netxen_pinit_from_rom(adapter);
935
NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
936
NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
937
NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
939
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
940
netxen_set_port_mode(adapter);
942
err = netxen_load_firmware(adapter);
946
netxen_release_firmware(adapter);
948
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
950
/* Initialize multicast addr pool owners */
952
if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
954
NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
958
err = netxen_init_dummy_dma(adapter);
963
* Tell the hardware our version number.
965
val = (_NETXEN_NIC_LINUX_MAJOR << 16)
966
| ((_NETXEN_NIC_LINUX_MINOR << 8))
967
| (_NETXEN_NIC_LINUX_SUBVERSION);
968
NXWR32(adapter, CRB_DRIVER_VERSION, val);
971
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
972
netxen_pcie_strap_init(adapter);
975
/* Handshake with the card before we register the devices. */
976
err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
978
netxen_free_dummy_dma(adapter);
982
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
984
nx_update_dma_mask(adapter);
986
netxen_check_options(adapter);
988
adapter->need_fw_reset = 0;
990
/* fall through and release firmware */
993
netxen_release_firmware(adapter);
998
netxen_nic_request_irq(struct netxen_adapter *adapter)
1000
irq_handler_t handler;
1001
struct nx_host_sds_ring *sds_ring;
1004
unsigned long flags = 0;
1005
struct net_device *netdev = adapter->netdev;
1006
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1008
if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1009
handler = netxen_msix_intr;
1010
else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1011
handler = netxen_msi_intr;
1013
flags |= IRQF_SHARED;
1014
handler = netxen_intr;
1016
adapter->irq = netdev->irq;
1018
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1019
sds_ring = &recv_ctx->sds_rings[ring];
1020
sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1021
err = request_irq(sds_ring->irq, handler,
1022
flags, sds_ring->name, sds_ring);
1031
netxen_nic_free_irq(struct netxen_adapter *adapter)
1034
struct nx_host_sds_ring *sds_ring;
1036
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1038
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1039
sds_ring = &recv_ctx->sds_rings[ring];
1040
free_irq(sds_ring->irq, sds_ring);
1045
netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1047
adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1048
adapter->coal.normal.data.rx_time_us =
1049
NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1050
adapter->coal.normal.data.rx_packets =
1051
NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1052
adapter->coal.normal.data.tx_time_us =
1053
NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1054
adapter->coal.normal.data.tx_packets =
1055
NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1058
/* with rtnl_lock */
1060
__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1064
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1067
err = adapter->init_port(adapter, adapter->physical_port);
1069
printk(KERN_ERR "%s: Failed to initialize port %d\n",
1070
netxen_nic_driver_name, adapter->portnum);
1073
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1074
adapter->macaddr_set(adapter, adapter->mac_addr);
1076
adapter->set_multi(netdev);
1077
adapter->set_mtu(adapter, netdev->mtu);
1079
adapter->ahw.linkup = 0;
1081
if (adapter->max_sds_rings > 1)
1082
netxen_config_rss(adapter, 1);
1084
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1085
netxen_config_intr_coalesce(adapter);
1087
if (netdev->features & NETIF_F_LRO)
1088
netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1090
netxen_napi_enable(adapter);
1092
if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1093
netxen_linkevent_request(adapter, 1);
1095
netxen_nic_set_link_parameters(adapter);
1097
set_bit(__NX_DEV_UP, &adapter->state);
1101
/* Usage: During resume and firmware recovery module.*/
1104
netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1109
if (netif_running(netdev))
1110
err = __netxen_nic_up(adapter, netdev);
1116
/* with rtnl_lock */
1118
__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1120
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1123
if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1127
spin_lock(&adapter->tx_clean_lock);
1128
netif_carrier_off(netdev);
1129
netif_tx_disable(netdev);
1131
if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1132
netxen_linkevent_request(adapter, 0);
1134
if (adapter->stop_port)
1135
adapter->stop_port(adapter);
1137
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1138
netxen_p3_free_mac_list(adapter);
1140
adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1142
netxen_napi_disable(adapter);
1144
netxen_release_tx_buffers(adapter);
1145
spin_unlock(&adapter->tx_clean_lock);
1148
/* Usage: During suspend and firmware recovery module */
1151
netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1154
if (netif_running(netdev))
1155
__netxen_nic_down(adapter, netdev);
1161
netxen_nic_attach(struct netxen_adapter *adapter)
1163
struct net_device *netdev = adapter->netdev;
1164
struct pci_dev *pdev = adapter->pdev;
1166
struct nx_host_rds_ring *rds_ring;
1167
struct nx_host_tx_ring *tx_ring;
1169
if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1172
err = netxen_init_firmware(adapter);
1176
err = netxen_napi_add(adapter, netdev);
1180
err = netxen_alloc_sw_resources(adapter);
1182
printk(KERN_ERR "%s: Error in setting sw resources\n",
1187
err = netxen_alloc_hw_resources(adapter);
1189
printk(KERN_ERR "%s: Error in setting hw resources\n",
1191
goto err_out_free_sw;
1194
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1195
tx_ring = adapter->tx_ring;
1196
tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1197
crb_cmd_producer[adapter->portnum]);
1198
tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1199
crb_cmd_consumer[adapter->portnum]);
1201
tx_ring->producer = 0;
1202
tx_ring->sw_consumer = 0;
1204
netxen_nic_update_cmd_producer(adapter, tx_ring);
1205
netxen_nic_update_cmd_consumer(adapter, tx_ring);
1208
for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1209
rds_ring = &adapter->recv_ctx.rds_rings[ring];
1210
netxen_post_rx_buffers(adapter, ring, rds_ring);
1213
err = netxen_nic_request_irq(adapter);
1215
dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1217
goto err_out_free_rxbuf;
1220
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1221
netxen_nic_init_coalesce_defaults(adapter);
1223
netxen_create_sysfs_entries(adapter);
1225
adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1229
netxen_release_rx_buffers(adapter);
1230
netxen_free_hw_resources(adapter);
1232
netxen_free_sw_resources(adapter);
1237
netxen_nic_detach(struct netxen_adapter *adapter)
1239
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1242
netxen_remove_sysfs_entries(adapter);
1244
netxen_free_hw_resources(adapter);
1245
netxen_release_rx_buffers(adapter);
1246
netxen_nic_free_irq(adapter);
1247
netxen_napi_del(adapter);
1248
netxen_free_sw_resources(adapter);
1254
netxen_nic_reset_context(struct netxen_adapter *adapter)
1257
struct net_device *netdev = adapter->netdev;
1259
if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1262
if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1264
netif_device_detach(netdev);
1266
if (netif_running(netdev))
1267
__netxen_nic_down(adapter, netdev);
1269
netxen_nic_detach(adapter);
1271
if (netif_running(netdev)) {
1272
err = netxen_nic_attach(adapter);
1274
err = __netxen_nic_up(adapter, netdev);
1280
netif_device_attach(netdev);
1284
clear_bit(__NX_RESETTING, &adapter->state);
1289
netxen_setup_netdev(struct netxen_adapter *adapter,
1290
struct net_device *netdev)
1293
struct pci_dev *pdev = adapter->pdev;
1295
adapter->mc_enabled = 0;
1296
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1297
adapter->max_mc_count = 38;
1299
adapter->max_mc_count = 16;
1301
netdev->netdev_ops = &netxen_netdev_ops;
1302
netdev->watchdog_timeo = 5*HZ;
1304
netxen_nic_change_mtu(netdev, netdev->mtu);
1306
SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1308
netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1311
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1312
netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1314
netdev->vlan_features |= netdev->hw_features;
1316
if (adapter->pci_using_dac) {
1317
netdev->features |= NETIF_F_HIGHDMA;
1318
netdev->vlan_features |= NETIF_F_HIGHDMA;
1321
if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1322
netdev->hw_features |= NETIF_F_HW_VLAN_TX;
1324
if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1325
netdev->hw_features |= NETIF_F_LRO;
1327
netdev->features |= netdev->hw_features;
1329
netdev->irq = adapter->msix_entries[0].vector;
1331
INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1333
if (netxen_read_mac_addr(adapter))
1334
dev_warn(&pdev->dev, "failed to read mac addr\n");
1336
netif_carrier_off(netdev);
1338
err = register_netdev(netdev);
1340
dev_err(&pdev->dev, "failed to register net device\n");
1347
#ifdef CONFIG_PCIEAER
1348
static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1350
struct pci_dev *pdev = adapter->pdev;
1351
struct pci_dev *root = pdev->bus->self;
1354
if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1355
adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1358
if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1361
aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1365
pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1369
static int __devinit
1370
netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1372
struct net_device *netdev = NULL;
1373
struct netxen_adapter *adapter = NULL;
1375
int pci_func_id = PCI_FUNC(pdev->devfn);
1376
uint8_t revision_id;
1379
if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1380
pr_warning("%s: chip revisions between 0x%x-0x%x "
1381
"will not be enabled.\n",
1382
module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1386
if ((err = pci_enable_device(pdev)))
1389
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1391
goto err_out_disable_pdev;
1394
if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1395
goto err_out_disable_pdev;
1397
if (NX_IS_REVISION_P3(pdev->revision))
1398
pci_enable_pcie_error_reporting(pdev);
1400
pci_set_master(pdev);
1402
netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1404
dev_err(&pdev->dev, "failed to allocate net_device\n");
1406
goto err_out_free_res;
1409
SET_NETDEV_DEV(netdev, &pdev->dev);
1411
adapter = netdev_priv(netdev);
1412
adapter->netdev = netdev;
1413
adapter->pdev = pdev;
1414
adapter->ahw.pci_func = pci_func_id;
1416
revision_id = pdev->revision;
1417
adapter->ahw.revision_id = revision_id;
1419
rwlock_init(&adapter->ahw.crb_lock);
1420
spin_lock_init(&adapter->ahw.mem_lock);
1422
spin_lock_init(&adapter->tx_clean_lock);
1423
INIT_LIST_HEAD(&adapter->mac_list);
1424
INIT_LIST_HEAD(&adapter->vlan_ip_list);
1426
err = netxen_setup_pci_map(adapter);
1428
goto err_out_free_netdev;
1430
/* This will be reset for mezz cards */
1431
adapter->portnum = pci_func_id;
1433
err = netxen_nic_get_board_info(adapter);
1435
dev_err(&pdev->dev, "Error getting board config info.\n");
1436
goto err_out_iounmap;
1439
#ifdef CONFIG_PCIEAER
1440
netxen_mask_aer_correctable(adapter);
1443
/* Mezz cards have PCI function 0,2,3 enabled */
1444
switch (adapter->ahw.board_type) {
1445
case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1446
case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1447
if (pci_func_id >= 2)
1448
adapter->portnum = pci_func_id - 2;
1454
err = netxen_check_flash_fw_compatibility(adapter);
1456
goto err_out_iounmap;
1458
if (adapter->portnum == 0) {
1459
val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1460
if (val != 0xffffffff && val != 0) {
1461
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1462
adapter->need_fw_reset = 1;
1466
err = netxen_start_firmware(adapter);
1468
goto err_out_decr_ref;
1471
* See if the firmware gave us a virtual-physical port mapping.
1473
adapter->physical_port = adapter->portnum;
1474
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1475
i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1476
if (i != 0x55555555)
1477
adapter->physical_port = i;
1480
netxen_nic_clear_stats(adapter);
1482
netxen_setup_intr(adapter);
1484
err = netxen_setup_netdev(adapter, netdev);
1486
goto err_out_disable_msi;
1488
pci_set_drvdata(pdev, adapter);
1490
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1492
switch (adapter->ahw.port_type) {
1493
case NETXEN_NIC_GBE:
1494
dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1495
adapter->netdev->name);
1497
case NETXEN_NIC_XGBE:
1498
dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1499
adapter->netdev->name);
1503
netxen_create_diag_entries(adapter);
1507
err_out_disable_msi:
1508
netxen_teardown_intr(adapter);
1510
netxen_free_dummy_dma(adapter);
1513
nx_decr_dev_ref_cnt(adapter);
1516
netxen_cleanup_pci_map(adapter);
1518
err_out_free_netdev:
1519
free_netdev(netdev);
1522
pci_release_regions(pdev);
1524
err_out_disable_pdev:
1525
pci_set_drvdata(pdev, NULL);
1526
pci_disable_device(pdev);
1530
static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1532
struct netxen_adapter *adapter;
1533
struct net_device *netdev;
1535
adapter = pci_get_drvdata(pdev);
1536
if (adapter == NULL)
1539
netdev = adapter->netdev;
1541
netxen_cancel_fw_work(adapter);
1543
unregister_netdev(netdev);
1545
cancel_work_sync(&adapter->tx_timeout_task);
1547
netxen_free_vlan_ip_list(adapter);
1548
netxen_nic_detach(adapter);
1550
nx_decr_dev_ref_cnt(adapter);
1552
if (adapter->portnum == 0)
1553
netxen_free_dummy_dma(adapter);
1555
clear_bit(__NX_RESETTING, &adapter->state);
1557
netxen_teardown_intr(adapter);
1559
netxen_remove_diag_entries(adapter);
1561
netxen_cleanup_pci_map(adapter);
1563
netxen_release_firmware(adapter);
1565
if (NX_IS_REVISION_P3(pdev->revision))
1566
pci_disable_pcie_error_reporting(pdev);
1568
pci_release_regions(pdev);
1569
pci_disable_device(pdev);
1570
pci_set_drvdata(pdev, NULL);
1572
free_netdev(netdev);
1575
static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1577
struct net_device *netdev = adapter->netdev;
1579
netif_device_detach(netdev);
1581
netxen_cancel_fw_work(adapter);
1583
if (netif_running(netdev))
1584
netxen_nic_down(adapter, netdev);
1586
cancel_work_sync(&adapter->tx_timeout_task);
1588
netxen_nic_detach(adapter);
1590
if (adapter->portnum == 0)
1591
netxen_free_dummy_dma(adapter);
1593
nx_decr_dev_ref_cnt(adapter);
1595
clear_bit(__NX_RESETTING, &adapter->state);
1598
static int netxen_nic_attach_func(struct pci_dev *pdev)
1600
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1601
struct net_device *netdev = adapter->netdev;
1604
err = pci_enable_device(pdev);
1608
pci_set_power_state(pdev, PCI_D0);
1609
pci_set_master(pdev);
1610
pci_restore_state(pdev);
1612
adapter->ahw.crb_win = -1;
1613
adapter->ahw.ocm_win = -1;
1615
err = netxen_start_firmware(adapter);
1617
dev_err(&pdev->dev, "failed to start firmware\n");
1621
if (netif_running(netdev)) {
1622
err = netxen_nic_attach(adapter);
1626
err = netxen_nic_up(adapter, netdev);
1628
goto err_out_detach;
1630
netxen_restore_indev_addr(netdev, NETDEV_UP);
1633
netif_device_attach(netdev);
1634
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1638
netxen_nic_detach(adapter);
1640
nx_decr_dev_ref_cnt(adapter);
1644
static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1645
pci_channel_state_t state)
1647
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1649
if (state == pci_channel_io_perm_failure)
1650
return PCI_ERS_RESULT_DISCONNECT;
1652
if (nx_dev_request_aer(adapter))
1653
return PCI_ERS_RESULT_RECOVERED;
1655
netxen_nic_detach_func(adapter);
1657
pci_disable_device(pdev);
1659
return PCI_ERS_RESULT_NEED_RESET;
1662
static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1666
err = netxen_nic_attach_func(pdev);
1668
return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1671
static void netxen_io_resume(struct pci_dev *pdev)
1673
pci_cleanup_aer_uncorrect_error_status(pdev);
1676
static void netxen_nic_shutdown(struct pci_dev *pdev)
1678
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1680
netxen_nic_detach_func(adapter);
1682
if (pci_save_state(pdev))
1685
if (netxen_nic_wol_supported(adapter)) {
1686
pci_enable_wake(pdev, PCI_D3cold, 1);
1687
pci_enable_wake(pdev, PCI_D3hot, 1);
1690
pci_disable_device(pdev);
1695
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1697
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1700
netxen_nic_detach_func(adapter);
1702
retval = pci_save_state(pdev);
1706
if (netxen_nic_wol_supported(adapter)) {
1707
pci_enable_wake(pdev, PCI_D3cold, 1);
1708
pci_enable_wake(pdev, PCI_D3hot, 1);
1711
pci_disable_device(pdev);
1712
pci_set_power_state(pdev, pci_choose_state(pdev, state));
1718
netxen_nic_resume(struct pci_dev *pdev)
1720
return netxen_nic_attach_func(pdev);
1724
static int netxen_nic_open(struct net_device *netdev)
1726
struct netxen_adapter *adapter = netdev_priv(netdev);
1729
if (adapter->driver_mismatch)
1732
err = netxen_nic_attach(adapter);
1736
err = __netxen_nic_up(adapter, netdev);
1740
netif_start_queue(netdev);
1745
netxen_nic_detach(adapter);
1750
* netxen_nic_close - Disables a network interface entry point
1752
static int netxen_nic_close(struct net_device *netdev)
1754
struct netxen_adapter *adapter = netdev_priv(netdev);
1756
__netxen_nic_down(adapter, netdev);
1761
netxen_tso_check(struct net_device *netdev,
1762
struct nx_host_tx_ring *tx_ring,
1763
struct cmd_desc_type0 *first_desc,
1764
struct sk_buff *skb)
1766
u8 opcode = TX_ETHER_PKT;
1767
__be16 protocol = skb->protocol;
1768
u16 flags = 0, vid = 0;
1770
int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1771
struct cmd_desc_type0 *hwdesc;
1772
struct vlan_ethhdr *vh;
1774
if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1776
vh = (struct vlan_ethhdr *)skb->data;
1777
protocol = vh->h_vlan_encapsulated_proto;
1778
flags = FLAGS_VLAN_TAGGED;
1780
} else if (vlan_tx_tag_present(skb)) {
1782
flags = FLAGS_VLAN_OOB;
1783
vid = vlan_tx_tag_get(skb);
1784
netxen_set_tx_vlan_tci(first_desc, vid);
1788
if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1789
skb_shinfo(skb)->gso_size > 0) {
1791
hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1793
first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1794
first_desc->total_hdr_length = hdr_len;
1796
first_desc->total_hdr_length += VLAN_HLEN;
1797
first_desc->tcp_hdr_offset = VLAN_HLEN;
1798
first_desc->ip_hdr_offset = VLAN_HLEN;
1799
/* Only in case of TSO on vlan device */
1800
flags |= FLAGS_VLAN_TAGGED;
1803
opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1804
TX_TCP_LSO6 : TX_TCP_LSO;
1807
} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1810
if (protocol == cpu_to_be16(ETH_P_IP)) {
1811
l4proto = ip_hdr(skb)->protocol;
1813
if (l4proto == IPPROTO_TCP)
1814
opcode = TX_TCP_PKT;
1815
else if(l4proto == IPPROTO_UDP)
1816
opcode = TX_UDP_PKT;
1817
} else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1818
l4proto = ipv6_hdr(skb)->nexthdr;
1820
if (l4proto == IPPROTO_TCP)
1821
opcode = TX_TCPV6_PKT;
1822
else if(l4proto == IPPROTO_UDP)
1823
opcode = TX_UDPV6_PKT;
1827
first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1828
first_desc->ip_hdr_offset += skb_network_offset(skb);
1829
netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1834
/* For LSO, we need to copy the MAC/IP/TCP headers into
1835
* the descriptor ring
1837
producer = tx_ring->producer;
1842
/* Create a TSO vlan header template for firmware */
1844
hwdesc = &tx_ring->desc_head[producer];
1845
tx_ring->cmd_buf_arr[producer].skb = NULL;
1847
copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1848
hdr_len + VLAN_HLEN);
1850
vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1851
skb_copy_from_linear_data(skb, vh, 12);
1852
vh->h_vlan_proto = htons(ETH_P_8021Q);
1853
vh->h_vlan_TCI = htons(vid);
1854
skb_copy_from_linear_data_offset(skb, 12,
1855
(char *)vh + 16, copy_len - 16);
1857
copied = copy_len - VLAN_HLEN;
1860
producer = get_next_index(producer, tx_ring->num_desc);
1863
while (copied < hdr_len) {
1865
copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1866
(hdr_len - copied));
1868
hwdesc = &tx_ring->desc_head[producer];
1869
tx_ring->cmd_buf_arr[producer].skb = NULL;
1871
skb_copy_from_linear_data_offset(skb, copied,
1872
(char *)hwdesc + offset, copy_len);
1877
producer = get_next_index(producer, tx_ring->num_desc);
1880
tx_ring->producer = producer;
1885
netxen_map_tx_skb(struct pci_dev *pdev,
1886
struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1888
struct netxen_skb_frag *nf;
1889
struct skb_frag_struct *frag;
1893
nr_frags = skb_shinfo(skb)->nr_frags;
1894
nf = &pbuf->frag_array[0];
1896
map = pci_map_single(pdev, skb->data,
1897
skb_headlen(skb), PCI_DMA_TODEVICE);
1898
if (pci_dma_mapping_error(pdev, map))
1902
nf->length = skb_headlen(skb);
1904
for (i = 0; i < nr_frags; i++) {
1905
frag = &skb_shinfo(skb)->frags[i];
1906
nf = &pbuf->frag_array[i+1];
1908
map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1910
if (dma_mapping_error(&pdev->dev, map))
1914
nf->length = skb_frag_size(frag);
1921
nf = &pbuf->frag_array[i+1];
1922
pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1925
nf = &pbuf->frag_array[0];
1926
pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1933
netxen_clear_cmddesc(u64 *desc)
1940
netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1942
struct netxen_adapter *adapter = netdev_priv(netdev);
1943
struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1944
struct netxen_cmd_buffer *pbuf;
1945
struct netxen_skb_frag *buffrag;
1946
struct cmd_desc_type0 *hwdesc, *first_desc;
1947
struct pci_dev *pdev;
1950
struct skb_frag_struct *frag;
1953
int frag_count, no_of_desc;
1954
u32 num_txd = tx_ring->num_desc;
1956
frag_count = skb_shinfo(skb)->nr_frags + 1;
1958
/* 14 frags supported for normal packet and
1959
* 32 frags supported for TSO packet
1961
if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
1963
for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
1964
frag = &skb_shinfo(skb)->frags[i];
1965
delta += skb_frag_size(frag);
1968
if (!__pskb_pull_tail(skb, delta))
1971
frag_count = 1 + skb_shinfo(skb)->nr_frags;
1973
/* 4 fragments per cmd des */
1974
no_of_desc = (frag_count + 3) >> 2;
1976
if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
1977
netif_stop_queue(netdev);
1979
if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1980
netif_start_queue(netdev);
1982
return NETDEV_TX_BUSY;
1985
producer = tx_ring->producer;
1986
pbuf = &tx_ring->cmd_buf_arr[producer];
1988
pdev = adapter->pdev;
1990
if (netxen_map_tx_skb(pdev, skb, pbuf))
1994
pbuf->frag_count = frag_count;
1996
first_desc = hwdesc = &tx_ring->desc_head[producer];
1997
netxen_clear_cmddesc((u64 *)hwdesc);
1999
netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2000
netxen_set_tx_port(first_desc, adapter->portnum);
2002
for (i = 0; i < frag_count; i++) {
2006
if ((k == 0) && (i > 0)) {
2007
/* move to next desc.*/
2008
producer = get_next_index(producer, num_txd);
2009
hwdesc = &tx_ring->desc_head[producer];
2010
netxen_clear_cmddesc((u64 *)hwdesc);
2011
tx_ring->cmd_buf_arr[producer].skb = NULL;
2014
buffrag = &pbuf->frag_array[i];
2016
hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2019
hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2022
hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2025
hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2028
hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2033
tx_ring->producer = get_next_index(producer, num_txd);
2035
netxen_tso_check(netdev, tx_ring, first_desc, skb);
2037
adapter->stats.txbytes += skb->len;
2038
adapter->stats.xmitcalled++;
2040
netxen_nic_update_cmd_producer(adapter, tx_ring);
2042
return NETDEV_TX_OK;
2045
adapter->stats.txdropped++;
2046
dev_kfree_skb_any(skb);
2047
return NETDEV_TX_OK;
2050
static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2052
struct net_device *netdev = adapter->netdev;
2053
uint32_t temp, temp_state, temp_val;
2056
temp = NXRD32(adapter, CRB_TEMP_STATE);
2058
temp_state = nx_get_temp_state(temp);
2059
temp_val = nx_get_temp_val(temp);
2061
if (temp_state == NX_TEMP_PANIC) {
2063
"%s: Device temperature %d degrees C exceeds"
2064
" maximum allowed. Hardware has been shut down.\n",
2065
netdev->name, temp_val);
2067
} else if (temp_state == NX_TEMP_WARN) {
2068
if (adapter->temp == NX_TEMP_NORMAL) {
2070
"%s: Device temperature %d degrees C "
2071
"exceeds operating range."
2072
" Immediate action needed.\n",
2073
netdev->name, temp_val);
2076
if (adapter->temp == NX_TEMP_WARN) {
2078
"%s: Device temperature is now %d degrees C"
2079
" in normal range.\n", netdev->name,
2083
adapter->temp = temp_state;
2087
void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2089
struct net_device *netdev = adapter->netdev;
2091
if (adapter->ahw.linkup && !linkup) {
2092
printk(KERN_INFO "%s: %s NIC Link is down\n",
2093
netxen_nic_driver_name, netdev->name);
2094
adapter->ahw.linkup = 0;
2095
if (netif_running(netdev)) {
2096
netif_carrier_off(netdev);
2097
netif_stop_queue(netdev);
2099
adapter->link_changed = !adapter->has_link_events;
2100
} else if (!adapter->ahw.linkup && linkup) {
2101
printk(KERN_INFO "%s: %s NIC Link is up\n",
2102
netxen_nic_driver_name, netdev->name);
2103
adapter->ahw.linkup = 1;
2104
if (netif_running(netdev)) {
2105
netif_carrier_on(netdev);
2106
netif_wake_queue(netdev);
2108
adapter->link_changed = !adapter->has_link_events;
2112
static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2114
u32 val, port, linkup;
2116
port = adapter->physical_port;
2118
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2119
val = NXRD32(adapter, CRB_XG_STATE_P3);
2120
val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2121
linkup = (val == XG_LINK_UP_P3);
2123
val = NXRD32(adapter, CRB_XG_STATE);
2124
val = (val >> port*8) & 0xff;
2125
linkup = (val == XG_LINK_UP);
2128
netxen_advert_link_change(adapter, linkup);
2131
static void netxen_tx_timeout(struct net_device *netdev)
2133
struct netxen_adapter *adapter = netdev_priv(netdev);
2135
if (test_bit(__NX_RESETTING, &adapter->state))
2138
dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2139
schedule_work(&adapter->tx_timeout_task);
2142
static void netxen_tx_timeout_task(struct work_struct *work)
2144
struct netxen_adapter *adapter =
2145
container_of(work, struct netxen_adapter, tx_timeout_task);
2147
if (!netif_running(adapter->netdev))
2150
if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2153
if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2157
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2158
/* try to scrub interrupt */
2159
netxen_napi_disable(adapter);
2161
netxen_napi_enable(adapter);
2163
netif_wake_queue(adapter->netdev);
2165
clear_bit(__NX_RESETTING, &adapter->state);
2167
clear_bit(__NX_RESETTING, &adapter->state);
2168
if (netxen_nic_reset_context(adapter)) {
2173
adapter->netdev->trans_start = jiffies;
2178
adapter->need_fw_reset = 1;
2179
clear_bit(__NX_RESETTING, &adapter->state);
2182
static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2183
struct rtnl_link_stats64 *stats)
2185
struct netxen_adapter *adapter = netdev_priv(netdev);
2187
stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2188
stats->tx_packets = adapter->stats.xmitfinished;
2189
stats->rx_bytes = adapter->stats.rxbytes;
2190
stats->tx_bytes = adapter->stats.txbytes;
2191
stats->rx_dropped = adapter->stats.rxdropped;
2192
stats->tx_dropped = adapter->stats.txdropped;
2197
static irqreturn_t netxen_intr(int irq, void *data)
2199
struct nx_host_sds_ring *sds_ring = data;
2200
struct netxen_adapter *adapter = sds_ring->adapter;
2203
status = readl(adapter->isr_int_vec);
2205
if (!(status & adapter->int_vec_bit))
2208
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2209
/* check interrupt state machine, to be sure */
2210
status = readl(adapter->crb_int_state_reg);
2211
if (!ISR_LEGACY_INT_TRIGGERED(status))
2215
unsigned long our_int = 0;
2217
our_int = readl(adapter->crb_int_state_reg);
2219
/* not our interrupt */
2220
if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2223
/* claim interrupt */
2224
writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2226
/* clear interrupt */
2227
netxen_nic_disable_int(sds_ring);
2230
writel(0xffffffff, adapter->tgt_status_reg);
2231
/* read twice to ensure write is flushed */
2232
readl(adapter->isr_int_vec);
2233
readl(adapter->isr_int_vec);
2235
napi_schedule(&sds_ring->napi);
2240
static irqreturn_t netxen_msi_intr(int irq, void *data)
2242
struct nx_host_sds_ring *sds_ring = data;
2243
struct netxen_adapter *adapter = sds_ring->adapter;
2245
/* clear interrupt */
2246
writel(0xffffffff, adapter->tgt_status_reg);
2248
napi_schedule(&sds_ring->napi);
2252
static irqreturn_t netxen_msix_intr(int irq, void *data)
2254
struct nx_host_sds_ring *sds_ring = data;
2256
napi_schedule(&sds_ring->napi);
2260
static int netxen_nic_poll(struct napi_struct *napi, int budget)
2262
struct nx_host_sds_ring *sds_ring =
2263
container_of(napi, struct nx_host_sds_ring, napi);
2265
struct netxen_adapter *adapter = sds_ring->adapter;
2270
tx_complete = netxen_process_cmd_ring(adapter);
2272
work_done = netxen_process_rcv_ring(sds_ring, budget);
2274
if ((work_done < budget) && tx_complete) {
2275
napi_complete(&sds_ring->napi);
2276
if (test_bit(__NX_DEV_UP, &adapter->state))
2277
netxen_nic_enable_int(sds_ring);
2283
#ifdef CONFIG_NET_POLL_CONTROLLER
2284
static void netxen_nic_poll_controller(struct net_device *netdev)
2287
struct nx_host_sds_ring *sds_ring;
2288
struct netxen_adapter *adapter = netdev_priv(netdev);
2289
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2291
disable_irq(adapter->irq);
2292
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2293
sds_ring = &recv_ctx->sds_rings[ring];
2294
netxen_intr(adapter->irq, sds_ring);
2296
enable_irq(adapter->irq);
2301
nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2304
if (netxen_api_lock(adapter))
2307
count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2309
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2311
netxen_api_unlock(adapter);
2316
nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2319
if (netxen_api_lock(adapter))
2322
count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2323
WARN_ON(count == 0);
2325
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2328
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2330
netxen_api_unlock(adapter);
2335
nx_dev_request_aer(struct netxen_adapter *adapter)
2340
if (netxen_api_lock(adapter))
2343
state = NXRD32(adapter, NX_CRB_DEV_STATE);
2345
if (state == NX_DEV_NEED_AER)
2347
else if (state == NX_DEV_READY) {
2348
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2352
netxen_api_unlock(adapter);
2357
nx_dev_request_reset(struct netxen_adapter *adapter)
2362
if (netxen_api_lock(adapter))
2365
state = NXRD32(adapter, NX_CRB_DEV_STATE);
2367
if (state == NX_DEV_NEED_RESET)
2369
else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2370
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2374
netxen_api_unlock(adapter);
2380
netxen_can_start_firmware(struct netxen_adapter *adapter)
2385
if (netxen_api_lock(adapter))
2388
count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2390
if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2395
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2398
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2400
netxen_api_unlock(adapter);
2406
netxen_schedule_work(struct netxen_adapter *adapter,
2407
work_func_t func, int delay)
2409
INIT_DELAYED_WORK(&adapter->fw_work, func);
2410
schedule_delayed_work(&adapter->fw_work, delay);
2414
netxen_cancel_fw_work(struct netxen_adapter *adapter)
2416
while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2419
cancel_delayed_work_sync(&adapter->fw_work);
2423
netxen_attach_work(struct work_struct *work)
2425
struct netxen_adapter *adapter = container_of(work,
2426
struct netxen_adapter, fw_work.work);
2427
struct net_device *netdev = adapter->netdev;
2430
if (netif_running(netdev)) {
2431
err = netxen_nic_attach(adapter);
2435
err = netxen_nic_up(adapter, netdev);
2437
netxen_nic_detach(adapter);
2441
netxen_restore_indev_addr(netdev, NETDEV_UP);
2444
netif_device_attach(netdev);
2447
adapter->fw_fail_cnt = 0;
2448
clear_bit(__NX_RESETTING, &adapter->state);
2449
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2453
netxen_fwinit_work(struct work_struct *work)
2455
struct netxen_adapter *adapter = container_of(work,
2456
struct netxen_adapter, fw_work.work);
2459
dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2461
switch (dev_state) {
2464
if (!netxen_start_firmware(adapter)) {
2465
netxen_schedule_work(adapter, netxen_attach_work, 0);
2470
case NX_DEV_NEED_RESET:
2471
case NX_DEV_INITALIZING:
2472
if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2473
netxen_schedule_work(adapter,
2474
netxen_fwinit_work, 2 * FW_POLL_DELAY);
2480
nx_incr_dev_ref_cnt(adapter);
2484
clear_bit(__NX_RESETTING, &adapter->state);
2488
netxen_detach_work(struct work_struct *work)
2490
struct netxen_adapter *adapter = container_of(work,
2491
struct netxen_adapter, fw_work.work);
2492
struct net_device *netdev = adapter->netdev;
2496
netif_device_detach(netdev);
2498
netxen_nic_down(adapter, netdev);
2501
netxen_nic_detach(adapter);
2504
status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2506
if (status & NX_RCODE_FATAL_ERROR)
2509
if (adapter->temp == NX_TEMP_PANIC)
2512
ref_cnt = nx_decr_dev_ref_cnt(adapter);
2514
if (ref_cnt == -EIO)
2517
delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2519
adapter->fw_wait_cnt = 0;
2520
netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2525
clear_bit(__NX_RESETTING, &adapter->state);
2529
netxen_check_health(struct netxen_adapter *adapter)
2531
u32 state, heartbit;
2532
struct net_device *netdev = adapter->netdev;
2534
state = NXRD32(adapter, NX_CRB_DEV_STATE);
2535
if (state == NX_DEV_NEED_AER)
2538
if (netxen_nic_check_temp(adapter))
2541
if (adapter->need_fw_reset) {
2542
if (nx_dev_request_reset(adapter))
2547
/* NX_DEV_NEED_RESET, this state can be marked in two cases
2548
* 1. Tx timeout 2. Fw hang
2549
* Send request to destroy context in case of tx timeout only
2550
* and doesn't required in case of Fw hang
2552
if (state == NX_DEV_NEED_RESET) {
2553
adapter->need_fw_reset = 1;
2554
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2558
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2561
heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2562
if (heartbit != adapter->heartbit) {
2563
adapter->heartbit = heartbit;
2564
adapter->fw_fail_cnt = 0;
2565
if (adapter->need_fw_reset)
2570
if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2573
if (nx_dev_request_reset(adapter))
2576
clear_bit(__NX_FW_ATTACHED, &adapter->state);
2578
dev_info(&netdev->dev, "firmware hang detected\n");
2581
if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2582
!test_and_set_bit(__NX_RESETTING, &adapter->state))
2583
netxen_schedule_work(adapter, netxen_detach_work, 0);
2588
netxen_fw_poll_work(struct work_struct *work)
2590
struct netxen_adapter *adapter = container_of(work,
2591
struct netxen_adapter, fw_work.work);
2593
if (test_bit(__NX_RESETTING, &adapter->state))
2596
if (test_bit(__NX_DEV_UP, &adapter->state)) {
2597
if (!adapter->has_link_events) {
2599
netxen_nic_handle_phy_intr(adapter);
2601
if (adapter->link_changed)
2602
netxen_nic_set_link_parameters(adapter);
2606
if (netxen_check_health(adapter))
2610
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2614
netxen_store_bridged_mode(struct device *dev,
2615
struct device_attribute *attr, const char *buf, size_t len)
2617
struct net_device *net = to_net_dev(dev);
2618
struct netxen_adapter *adapter = netdev_priv(net);
2622
if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2625
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2628
if (strict_strtoul(buf, 2, &new))
2631
if (!netxen_config_bridged_mode(adapter, !!new))
2639
netxen_show_bridged_mode(struct device *dev,
2640
struct device_attribute *attr, char *buf)
2642
struct net_device *net = to_net_dev(dev);
2643
struct netxen_adapter *adapter;
2644
int bridged_mode = 0;
2646
adapter = netdev_priv(net);
2648
if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2649
bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2651
return sprintf(buf, "%d\n", bridged_mode);
2654
static struct device_attribute dev_attr_bridged_mode = {
2655
.attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2656
.show = netxen_show_bridged_mode,
2657
.store = netxen_store_bridged_mode,
2661
netxen_store_diag_mode(struct device *dev,
2662
struct device_attribute *attr, const char *buf, size_t len)
2664
struct netxen_adapter *adapter = dev_get_drvdata(dev);
2667
if (strict_strtoul(buf, 2, &new))
2670
if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2671
adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2677
netxen_show_diag_mode(struct device *dev,
2678
struct device_attribute *attr, char *buf)
2680
struct netxen_adapter *adapter = dev_get_drvdata(dev);
2682
return sprintf(buf, "%d\n",
2683
!!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2686
static struct device_attribute dev_attr_diag_mode = {
2687
.attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2688
.show = netxen_show_diag_mode,
2689
.store = netxen_store_diag_mode,
2693
netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2694
loff_t offset, size_t size)
2696
size_t crb_size = 4;
2698
if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2701
if (offset < NETXEN_PCI_CRBSPACE) {
2702
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2705
if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2706
NETXEN_PCI_CAMQM_2M_END))
2712
if ((size != crb_size) || (offset & (crb_size-1)))
2719
netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2720
struct bin_attribute *attr,
2721
char *buf, loff_t offset, size_t size)
2723
struct device *dev = container_of(kobj, struct device, kobj);
2724
struct netxen_adapter *adapter = dev_get_drvdata(dev);
2729
ret = netxen_sysfs_validate_crb(adapter, offset, size);
2733
if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2734
ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2735
NETXEN_PCI_CAMQM_2M_END)) {
2736
netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2737
memcpy(buf, &qmdata, size);
2739
data = NXRD32(adapter, offset);
2740
memcpy(buf, &data, size);
2747
netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2748
struct bin_attribute *attr,
2749
char *buf, loff_t offset, size_t size)
2751
struct device *dev = container_of(kobj, struct device, kobj);
2752
struct netxen_adapter *adapter = dev_get_drvdata(dev);
2757
ret = netxen_sysfs_validate_crb(adapter, offset, size);
2761
if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2762
ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2763
NETXEN_PCI_CAMQM_2M_END)) {
2764
memcpy(&qmdata, buf, size);
2765
netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2767
memcpy(&data, buf, size);
2768
NXWR32(adapter, offset, data);
2775
netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2776
loff_t offset, size_t size)
2778
if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2781
if ((size != 8) || (offset & 0x7))
2788
netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2789
struct bin_attribute *attr,
2790
char *buf, loff_t offset, size_t size)
2792
struct device *dev = container_of(kobj, struct device, kobj);
2793
struct netxen_adapter *adapter = dev_get_drvdata(dev);
2797
ret = netxen_sysfs_validate_mem(adapter, offset, size);
2801
if (adapter->pci_mem_read(adapter, offset, &data))
2804
memcpy(buf, &data, size);
2809
static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2810
struct bin_attribute *attr, char *buf,
2811
loff_t offset, size_t size)
2813
struct device *dev = container_of(kobj, struct device, kobj);
2814
struct netxen_adapter *adapter = dev_get_drvdata(dev);
2818
ret = netxen_sysfs_validate_mem(adapter, offset, size);
2822
memcpy(&data, buf, size);
2824
if (adapter->pci_mem_write(adapter, offset, data))
2831
static struct bin_attribute bin_attr_crb = {
2832
.attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2834
.read = netxen_sysfs_read_crb,
2835
.write = netxen_sysfs_write_crb,
2838
static struct bin_attribute bin_attr_mem = {
2839
.attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2841
.read = netxen_sysfs_read_mem,
2842
.write = netxen_sysfs_write_mem,
2847
netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2849
struct net_device *netdev = adapter->netdev;
2850
struct device *dev = &netdev->dev;
2852
if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2853
/* bridged_mode control */
2854
if (device_create_file(dev, &dev_attr_bridged_mode)) {
2855
dev_warn(&netdev->dev,
2856
"failed to create bridged_mode sysfs entry\n");
2862
netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2864
struct net_device *netdev = adapter->netdev;
2865
struct device *dev = &netdev->dev;
2867
if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2868
device_remove_file(dev, &dev_attr_bridged_mode);
2872
netxen_create_diag_entries(struct netxen_adapter *adapter)
2874
struct pci_dev *pdev = adapter->pdev;
2878
if (device_create_file(dev, &dev_attr_diag_mode))
2879
dev_info(dev, "failed to create diag_mode sysfs entry\n");
2880
if (device_create_bin_file(dev, &bin_attr_crb))
2881
dev_info(dev, "failed to create crb sysfs entry\n");
2882
if (device_create_bin_file(dev, &bin_attr_mem))
2883
dev_info(dev, "failed to create mem sysfs entry\n");
2888
netxen_remove_diag_entries(struct netxen_adapter *adapter)
2890
struct pci_dev *pdev = adapter->pdev;
2891
struct device *dev = &pdev->dev;
2893
device_remove_file(dev, &dev_attr_diag_mode);
2894
device_remove_bin_file(dev, &bin_attr_crb);
2895
device_remove_bin_file(dev, &bin_attr_mem);
2900
#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2903
netxen_destip_supported(struct netxen_adapter *adapter)
2905
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2908
if (adapter->ahw.cut_through)
2915
netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
2917
struct nx_vlan_ip_list *cur;
2918
struct list_head *head = &adapter->vlan_ip_list;
2920
while (!list_empty(head)) {
2921
cur = list_entry(head->next, struct nx_vlan_ip_list, list);
2922
netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
2923
list_del(&cur->list);
2929
netxen_list_config_vlan_ip(struct netxen_adapter *adapter,
2930
struct in_ifaddr *ifa, unsigned long event)
2932
struct net_device *dev;
2933
struct nx_vlan_ip_list *cur, *tmp_cur;
2934
struct list_head *head;
2936
dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2941
if (!is_vlan_dev(dev))
2946
list_for_each(head, &adapter->vlan_ip_list) {
2947
cur = list_entry(head, struct nx_vlan_ip_list, list);
2949
if (cur->ip_addr == ifa->ifa_address)
2953
cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC);
2955
printk(KERN_ERR "%s: failed to add vlan ip to list\n",
2956
adapter->netdev->name);
2960
cur->ip_addr = ifa->ifa_address;
2961
list_add_tail(&cur->list, &adapter->vlan_ip_list);
2964
list_for_each_entry_safe(cur, tmp_cur,
2965
&adapter->vlan_ip_list, list) {
2966
if (cur->ip_addr == ifa->ifa_address) {
2967
list_del(&cur->list);
2975
netxen_config_indev_addr(struct netxen_adapter *adapter,
2976
struct net_device *dev, unsigned long event)
2978
struct in_device *indev;
2980
if (!netxen_destip_supported(adapter))
2983
indev = in_dev_get(dev);
2990
netxen_config_ipaddr(adapter,
2991
ifa->ifa_address, NX_IP_UP);
2992
netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
2995
netxen_config_ipaddr(adapter,
2996
ifa->ifa_address, NX_IP_DOWN);
2997
netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
3002
} endfor_ifa(indev);
3008
netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3011
struct netxen_adapter *adapter = netdev_priv(netdev);
3012
struct nx_vlan_ip_list *pos, *tmp_pos;
3013
unsigned long ip_event;
3015
ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3016
netxen_config_indev_addr(adapter, netdev, event);
3018
list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) {
3019
netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3023
static int netxen_netdev_event(struct notifier_block *this,
3024
unsigned long event, void *ptr)
3026
struct netxen_adapter *adapter;
3027
struct net_device *dev = (struct net_device *)ptr;
3028
struct net_device *orig_dev = dev;
3034
if (dev->priv_flags & IFF_802_1Q_VLAN) {
3035
dev = vlan_dev_real_dev(dev);
3039
if (!is_netxen_netdev(dev))
3042
adapter = netdev_priv(dev);
3047
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3050
netxen_config_indev_addr(adapter, orig_dev, event);
3056
netxen_inetaddr_event(struct notifier_block *this,
3057
unsigned long event, void *ptr)
3059
struct netxen_adapter *adapter;
3060
struct net_device *dev;
3062
struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3064
dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3070
if (dev->priv_flags & IFF_802_1Q_VLAN) {
3071
dev = vlan_dev_real_dev(dev);
3075
if (!is_netxen_netdev(dev))
3078
adapter = netdev_priv(dev);
3080
if (!adapter || !netxen_destip_supported(adapter))
3083
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3088
netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3089
netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
3092
netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
3093
netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
3103
static struct notifier_block netxen_netdev_cb = {
3104
.notifier_call = netxen_netdev_event,
3107
static struct notifier_block netxen_inetaddr_cb = {
3108
.notifier_call = netxen_inetaddr_event,
3112
netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3115
netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
3119
static struct pci_error_handlers netxen_err_handler = {
3120
.error_detected = netxen_io_error_detected,
3121
.slot_reset = netxen_io_slot_reset,
3122
.resume = netxen_io_resume,
3125
static struct pci_driver netxen_driver = {
3126
.name = netxen_nic_driver_name,
3127
.id_table = netxen_pci_tbl,
3128
.probe = netxen_nic_probe,
3129
.remove = __devexit_p(netxen_nic_remove),
3131
.suspend = netxen_nic_suspend,
3132
.resume = netxen_nic_resume,
3134
.shutdown = netxen_nic_shutdown,
3135
.err_handler = &netxen_err_handler
3138
static int __init netxen_init_module(void)
3140
printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3143
register_netdevice_notifier(&netxen_netdev_cb);
3144
register_inetaddr_notifier(&netxen_inetaddr_cb);
3146
return pci_register_driver(&netxen_driver);
3149
module_init(netxen_init_module);
3151
static void __exit netxen_exit_module(void)
3153
pci_unregister_driver(&netxen_driver);
3156
unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3157
unregister_netdevice_notifier(&netxen_netdev_cb);
3161
module_exit(netxen_exit_module);