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path: root/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
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Diffstat (limited to 'drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c')
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c4509
1 files changed, 4509 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
new file mode 100644
index 000000000000..106503f118f6
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -0,0 +1,4509 @@
+/*
+ * QLogic qlcnic NIC Driver
+ * Copyright (c) 2009-2010 QLogic Corporation
+ *
+ * See LICENSE.qlcnic for copyright and licensing details.
+ */
+
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+
+#include "qlcnic.h"
+
+#include <linux/swab.h>
+#include <linux/dma-mapping.h>
+#include <net/ip.h>
+#include <linux/ipv6.h>
+#include <linux/inetdevice.h>
+#include <linux/sysfs.h>
+#include <linux/aer.h>
+#include <linux/log2.h>
+
+MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
+MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
+
+char qlcnic_driver_name[] = "qlcnic";
+static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
+ "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
+
+static struct workqueue_struct *qlcnic_wq;
+static int qlcnic_mac_learn;
+module_param(qlcnic_mac_learn, int, 0444);
+MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
+
+static int use_msi = 1;
+module_param(use_msi, int, 0444);
+MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
+
+static int use_msi_x = 1;
+module_param(use_msi_x, int, 0444);
+MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
+
+static int auto_fw_reset = 1;
+module_param(auto_fw_reset, int, 0644);
+MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
+
+static int load_fw_file;
+module_param(load_fw_file, int, 0444);
+MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
+
+static int qlcnic_config_npars;
+module_param(qlcnic_config_npars, int, 0444);
+MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
+
+static int __devinit qlcnic_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent);
+static void __devexit qlcnic_remove(struct pci_dev *pdev);
+static int qlcnic_open(struct net_device *netdev);
+static int qlcnic_close(struct net_device *netdev);
+static void qlcnic_tx_timeout(struct net_device *netdev);
+static void qlcnic_attach_work(struct work_struct *work);
+static void qlcnic_fwinit_work(struct work_struct *work);
+static void qlcnic_fw_poll_work(struct work_struct *work);
+static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
+ work_func_t func, int delay);
+static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
+static int qlcnic_poll(struct napi_struct *napi, int budget);
+static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void qlcnic_poll_controller(struct net_device *netdev);
+#endif
+
+static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
+static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
+static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
+static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
+
+static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
+static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
+static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
+
+static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
+static irqreturn_t qlcnic_intr(int irq, void *data);
+static irqreturn_t qlcnic_msi_intr(int irq, void *data);
+static irqreturn_t qlcnic_msix_intr(int irq, void *data);
+
+static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
+static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
+static int qlcnic_start_firmware(struct qlcnic_adapter *);
+
+static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
+static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
+static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
+static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
+static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
+static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
+ struct qlcnic_esw_func_cfg *);
+static void qlcnic_vlan_rx_add(struct net_device *, u16);
+static void qlcnic_vlan_rx_del(struct net_device *, u16);
+
+/* PCI Device ID Table */
+#define ENTRY(device) \
+ {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
+ .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
+
+#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
+
+static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
+ ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
+ {0,}
+};
+
+MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
+
+
+inline void
+qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
+ struct qlcnic_host_tx_ring *tx_ring)
+{
+ writel(tx_ring->producer, tx_ring->crb_cmd_producer);
+}
+
+static const u32 msi_tgt_status[8] = {
+ ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
+ ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
+ ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
+ ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
+};
+
+static const
+struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
+
+static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
+{
+ writel(0, sds_ring->crb_intr_mask);
+}
+
+static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
+{
+ struct qlcnic_adapter *adapter = sds_ring->adapter;
+
+ writel(0x1, sds_ring->crb_intr_mask);
+
+ if (!QLCNIC_IS_MSI_FAMILY(adapter))
+ writel(0xfbff, adapter->tgt_mask_reg);
+}
+
+static int
+qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
+{
+ int size = sizeof(struct qlcnic_host_sds_ring) * count;
+
+ recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
+
+ return recv_ctx->sds_rings == NULL;
+}
+
+static void
+qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
+{
+ if (recv_ctx->sds_rings != NULL)
+ kfree(recv_ctx->sds_rings);
+
+ recv_ctx->sds_rings = NULL;
+}
+
+static int
+qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
+{
+ int ring;
+ struct qlcnic_host_sds_ring *sds_ring;
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
+ return -ENOMEM;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+
+ if (ring == adapter->max_sds_rings - 1)
+ netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
+ QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
+ else
+ netif_napi_add(netdev, &sds_ring->napi,
+ qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
+ }
+
+ return 0;
+}
+
+static void
+qlcnic_napi_del(struct qlcnic_adapter *adapter)
+{
+ int ring;
+ struct qlcnic_host_sds_ring *sds_ring;
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ netif_napi_del(&sds_ring->napi);
+ }
+
+ qlcnic_free_sds_rings(adapter->recv_ctx);
+}
+
+static void
+qlcnic_napi_enable(struct qlcnic_adapter *adapter)
+{
+ int ring;
+ struct qlcnic_host_sds_ring *sds_ring;
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ return;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ napi_enable(&sds_ring->napi);
+ qlcnic_enable_int(sds_ring);
+ }
+}
+
+static void
+qlcnic_napi_disable(struct qlcnic_adapter *adapter)
+{
+ int ring;
+ struct qlcnic_host_sds_ring *sds_ring;
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ return;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ qlcnic_disable_int(sds_ring);
+ napi_synchronize(&sds_ring->napi);
+ napi_disable(&sds_ring->napi);
+ }
+}
+
+static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
+{
+ memset(&adapter->stats, 0, sizeof(adapter->stats));
+}
+
+static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
+{
+ u32 control;
+ int pos;
+
+ pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+ if (pos) {
+ pci_read_config_dword(pdev, pos, &control);
+ if (enable)
+ control |= PCI_MSIX_FLAGS_ENABLE;
+ else
+ control = 0;
+ pci_write_config_dword(pdev, pos, control);
+ }
+}
+
+static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++)
+ adapter->msix_entries[i].entry = i;
+}
+
+static int
+qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
+{
+ u8 mac_addr[ETH_ALEN];
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+
+ if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
+ return -EIO;
+
+ memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
+ memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
+ memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
+
+ /* set station address */
+
+ if (!is_valid_ether_addr(netdev->perm_addr))
+ dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
+ netdev->dev_addr);
+
+ return 0;
+}
+
+static int qlcnic_set_mac(struct net_device *netdev, void *p)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+
+ if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
+ return -EOPNOTSUPP;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+
+ if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
+ netif_device_detach(netdev);
+ qlcnic_napi_disable(adapter);
+ }
+
+ memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ qlcnic_set_multi(adapter->netdev);
+
+ if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
+ netif_device_attach(netdev);
+ qlcnic_napi_enable(adapter);
+ }
+ return 0;
+}
+
+static const struct net_device_ops qlcnic_netdev_ops = {
+ .ndo_open = qlcnic_open,
+ .ndo_stop = qlcnic_close,
+ .ndo_start_xmit = qlcnic_xmit_frame,
+ .ndo_get_stats = qlcnic_get_stats,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_rx_mode = qlcnic_set_multi,
+ .ndo_set_mac_address = qlcnic_set_mac,
+ .ndo_change_mtu = qlcnic_change_mtu,
+ .ndo_fix_features = qlcnic_fix_features,
+ .ndo_set_features = qlcnic_set_features,
+ .ndo_tx_timeout = qlcnic_tx_timeout,
+ .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
+ .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = qlcnic_poll_controller,
+#endif
+};
+
+static struct qlcnic_nic_template qlcnic_ops = {
+ .config_bridged_mode = qlcnic_config_bridged_mode,
+ .config_led = qlcnic_config_led,
+ .start_firmware = qlcnic_start_firmware
+};
+
+static struct qlcnic_nic_template qlcnic_vf_ops = {
+ .config_bridged_mode = qlcnicvf_config_bridged_mode,
+ .config_led = qlcnicvf_config_led,
+ .start_firmware = qlcnicvf_start_firmware
+};
+
+static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int err = -1;
+
+ adapter->max_sds_rings = 1;
+ adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
+ qlcnic_set_msix_bit(pdev, 0);
+
+ if (adapter->msix_supported) {
+ enable_msix:
+ qlcnic_init_msix_entries(adapter, num_msix);
+ err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
+ if (err == 0) {
+ adapter->flags |= QLCNIC_MSIX_ENABLED;
+ qlcnic_set_msix_bit(pdev, 1);
+
+ adapter->max_sds_rings = num_msix;
+
+ dev_info(&pdev->dev, "using msi-x interrupts\n");
+ return err;
+ }
+ if (err > 0) {
+ num_msix = rounddown_pow_of_two(err);
+ if (num_msix)
+ goto enable_msix;
+ }
+ }
+ return err;
+}
+
+
+static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
+{
+ const struct qlcnic_legacy_intr_set *legacy_intrp;
+ struct pci_dev *pdev = adapter->pdev;
+
+ if (use_msi && !pci_enable_msi(pdev)) {
+ adapter->flags |= QLCNIC_MSI_ENABLED;
+ adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
+ msi_tgt_status[adapter->ahw->pci_func]);
+ dev_info(&pdev->dev, "using msi interrupts\n");
+ adapter->msix_entries[0].vector = pdev->irq;
+ return;
+ }
+
+ legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
+
+ adapter->int_vec_bit = legacy_intrp->int_vec_bit;
+ adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
+ legacy_intrp->tgt_status_reg);
+ adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
+ legacy_intrp->tgt_mask_reg);
+ adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
+
+ adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
+ ISR_INT_STATE_REG);
+ dev_info(&pdev->dev, "using legacy interrupts\n");
+ adapter->msix_entries[0].vector = pdev->irq;
+}
+
+static void
+qlcnic_setup_intr(struct qlcnic_adapter *adapter)
+{
+ int num_msix;
+
+ if (adapter->msix_supported) {
+ num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
+ QLCNIC_DEF_NUM_STS_DESC_RINGS));
+ } else
+ num_msix = 1;
+
+ if (!qlcnic_enable_msix(adapter, num_msix))
+ return;
+
+ qlcnic_enable_msi_legacy(adapter);
+}
+
+static void
+qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
+{
+ if (adapter->flags & QLCNIC_MSIX_ENABLED)
+ pci_disable_msix(adapter->pdev);
+ if (adapter->flags & QLCNIC_MSI_ENABLED)
+ pci_disable_msi(adapter->pdev);
+}
+
+static void
+qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
+{
+ if (adapter->ahw->pci_base0 != NULL)
+ iounmap(adapter->ahw->pci_base0);
+}
+
+static int
+qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_pci_info *pci_info;
+ int i, ret = 0;
+ u8 pfn;
+
+ pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
+ if (!pci_info)
+ return -ENOMEM;
+
+ adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
+ QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
+ if (!adapter->npars) {
+ ret = -ENOMEM;
+ goto err_pci_info;
+ }
+
+ adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
+ QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
+ if (!adapter->eswitch) {
+ ret = -ENOMEM;
+ goto err_npars;
+ }
+
+ ret = qlcnic_get_pci_info(adapter, pci_info);
+ if (ret)
+ goto err_eswitch;
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ pfn = pci_info[i].id;
+ if (pfn > QLCNIC_MAX_PCI_FUNC) {
+ ret = QL_STATUS_INVALID_PARAM;
+ goto err_eswitch;
+ }
+ adapter->npars[pfn].active = (u8)pci_info[i].active;
+ adapter->npars[pfn].type = (u8)pci_info[i].type;
+ adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
+ adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
+ adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
+ }
+
+ for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
+ adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
+
+ kfree(pci_info);
+ return 0;
+
+err_eswitch:
+ kfree(adapter->eswitch);
+ adapter->eswitch = NULL;
+err_npars:
+ kfree(adapter->npars);
+ adapter->npars = NULL;
+err_pci_info:
+ kfree(pci_info);
+
+ return ret;
+}
+
+static int
+qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
+{
+ u8 id;
+ u32 ref_count;
+ int i, ret = 1;
+ u32 data = QLCNIC_MGMT_FUNC;
+ void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
+
+ /* If other drivers are not in use set their privilege level */
+ ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
+ ret = qlcnic_api_lock(adapter);
+ if (ret)
+ goto err_lock;
+
+ if (qlcnic_config_npars) {
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ id = i;
+ if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
+ id == adapter->ahw->pci_func)
+ continue;
+ data |= (qlcnic_config_npars &
+ QLC_DEV_SET_DRV(0xf, id));
+ }
+ } else {
+ data = readl(priv_op);
+ data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) |
+ (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
+ adapter->ahw->pci_func));
+ }
+ writel(data, priv_op);
+ qlcnic_api_unlock(adapter);
+err_lock:
+ return ret;
+}
+
+static void
+qlcnic_check_vf(struct qlcnic_adapter *adapter)
+{
+ void __iomem *msix_base_addr;
+ void __iomem *priv_op;
+ u32 func;
+ u32 msix_base;
+ u32 op_mode, priv_level;
+
+ /* Determine FW API version */
+ adapter->fw_hal_version = readl(adapter->ahw->pci_base0 +
+ QLCNIC_FW_API);
+
+ /* Find PCI function number */
+ pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
+ msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
+ msix_base = readl(msix_base_addr);
+ func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
+ adapter->ahw->pci_func = func;
+
+ /* Determine function privilege level */
+ priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
+ op_mode = readl(priv_op);
+ if (op_mode == QLC_DEV_DRV_DEFAULT)
+ priv_level = QLCNIC_MGMT_FUNC;
+ else
+ priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
+
+ if (priv_level == QLCNIC_NON_PRIV_FUNC) {
+ adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
+ dev_info(&adapter->pdev->dev,
+ "HAL Version: %d Non Privileged function\n",
+ adapter->fw_hal_version);
+ adapter->nic_ops = &qlcnic_vf_ops;
+ } else
+ adapter->nic_ops = &qlcnic_ops;
+}
+
+static int
+qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
+{
+ void __iomem *mem_ptr0 = NULL;
+ resource_size_t mem_base;
+ unsigned long mem_len, pci_len0 = 0;
+
+ struct pci_dev *pdev = adapter->pdev;
+
+ /* remap phys address */
+ mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
+ mem_len = pci_resource_len(pdev, 0);
+
+ if (mem_len == QLCNIC_PCI_2MB_SIZE) {
+
+ mem_ptr0 = pci_ioremap_bar(pdev, 0);
+ if (mem_ptr0 == NULL) {
+ dev_err(&pdev->dev, "failed to map PCI bar 0\n");
+ return -EIO;
+ }
+ pci_len0 = mem_len;
+ } else {
+ return -EIO;
+ }
+
+ dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
+
+ adapter->ahw->pci_base0 = mem_ptr0;
+ adapter->ahw->pci_len0 = pci_len0;
+
+ qlcnic_check_vf(adapter);
+
+ adapter->ahw->ocm_win_crb = qlcnic_get_ioaddr(adapter,
+ QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(
+ adapter->ahw->pci_func)));
+
+ return 0;
+}
+
+static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int i, found = 0;
+
+ for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
+ if (qlcnic_boards[i].vendor == pdev->vendor &&
+ qlcnic_boards[i].device == pdev->device &&
+ qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
+ qlcnic_boards[i].sub_device == pdev->subsystem_device) {
+ sprintf(name, "%pM: %s" ,
+ adapter->mac_addr,
+ qlcnic_boards[i].short_name);
+ found = 1;
+ break;
+ }
+
+ }
+
+ if (!found)
+ sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
+}
+
+static void
+qlcnic_check_options(struct qlcnic_adapter *adapter)
+{
+ u32 fw_major, fw_minor, fw_build, prev_fw_version;
+ struct pci_dev *pdev = adapter->pdev;
+ struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
+
+ prev_fw_version = adapter->fw_version;
+
+ fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
+ fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
+ fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
+
+ adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
+
+ if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC) {
+ if (fw_dump->tmpl_hdr == NULL ||
+ adapter->fw_version > prev_fw_version) {
+ if (fw_dump->tmpl_hdr)
+ vfree(fw_dump->tmpl_hdr);
+ if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
+ dev_info(&pdev->dev,
+ "Supports FW dump capability\n");
+ }
+ }
+
+ dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
+ fw_major, fw_minor, fw_build);
+ if (adapter->ahw->port_type == QLCNIC_XGBE) {
+ if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
+ adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
+ } else {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
+ adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
+ }
+
+ adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+ adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+
+ } else if (adapter->ahw->port_type == QLCNIC_GBE) {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
+ adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+ adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+ adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
+ }
+
+ adapter->msix_supported = !!use_msi_x;
+
+ adapter->num_txd = MAX_CMD_DESCRIPTORS;
+
+ adapter->max_rds_rings = MAX_RDS_RINGS;
+}
+
+static int
+qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
+{
+ int err;
+ struct qlcnic_info nic_info;
+
+ err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
+ if (err)
+ return err;
+
+ adapter->physical_port = (u8)nic_info.phys_port;
+ adapter->switch_mode = nic_info.switch_mode;
+ adapter->max_tx_ques = nic_info.max_tx_ques;
+ adapter->max_rx_ques = nic_info.max_rx_ques;
+ adapter->capabilities = nic_info.capabilities;
+ adapter->max_mac_filters = nic_info.max_mac_filters;
+ adapter->max_mtu = nic_info.max_mtu;
+
+ if (adapter->capabilities & BIT_6)
+ adapter->flags |= QLCNIC_ESWITCH_ENABLED;
+ else
+ adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
+
+ return err;
+}
+
+static void
+qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
+ struct qlcnic_esw_func_cfg *esw_cfg)
+{
+ if (esw_cfg->discard_tagged)
+ adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
+ else
+ adapter->flags |= QLCNIC_TAGGING_ENABLED;
+
+ if (esw_cfg->vlan_id)
+ adapter->pvid = esw_cfg->vlan_id;
+ else
+ adapter->pvid = 0;
+}
+
+static void
+qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ set_bit(vid, adapter->vlans);
+}
+
+static void
+qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+
+ qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
+ clear_bit(vid, adapter->vlans);
+}
+
+static void
+qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
+ struct qlcnic_esw_func_cfg *esw_cfg)
+{
+ adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
+ QLCNIC_PROMISC_DISABLED);
+
+ if (esw_cfg->mac_anti_spoof)
+ adapter->flags |= QLCNIC_MACSPOOF;
+
+ if (!esw_cfg->mac_override)
+ adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
+
+ if (!esw_cfg->promisc_mode)
+ adapter->flags |= QLCNIC_PROMISC_DISABLED;
+
+ qlcnic_set_netdev_features(adapter, esw_cfg);
+}
+
+static int
+qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_esw_func_cfg esw_cfg;
+
+ if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
+ return 0;
+
+ esw_cfg.pci_func = adapter->ahw->pci_func;
+ if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
+ return -EIO;
+ qlcnic_set_vlan_config(adapter, &esw_cfg);
+ qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
+
+ return 0;
+}
+
+static void
+qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
+ struct qlcnic_esw_func_cfg *esw_cfg)
+{
+ struct net_device *netdev = adapter->netdev;
+ unsigned long features, vlan_features;
+
+ features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_GRO);
+ vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
+
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
+ features |= (NETIF_F_TSO | NETIF_F_TSO6);
+ vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
+ }
+
+ if (netdev->features & NETIF_F_LRO)
+ features |= NETIF_F_LRO;
+
+ if (esw_cfg->offload_flags & BIT_0) {
+ netdev->features |= features;
+ if (!(esw_cfg->offload_flags & BIT_1))
+ netdev->features &= ~NETIF_F_TSO;
+ if (!(esw_cfg->offload_flags & BIT_2))
+ netdev->features &= ~NETIF_F_TSO6;
+ } else {
+ netdev->features &= ~features;
+ }
+
+ netdev->vlan_features = (features & vlan_features);
+}
+
+static int
+qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
+{
+ void __iomem *priv_op;
+ u32 op_mode, priv_level;
+ int err = 0;
+
+ err = qlcnic_initialize_nic(adapter);
+ if (err)
+ return err;
+
+ if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
+ return 0;
+
+ priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
+ op_mode = readl(priv_op);
+ priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
+
+ if (op_mode == QLC_DEV_DRV_DEFAULT)
+ priv_level = QLCNIC_MGMT_FUNC;
+ else
+ priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
+
+ if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
+ if (priv_level == QLCNIC_MGMT_FUNC) {
+ adapter->op_mode = QLCNIC_MGMT_FUNC;
+ err = qlcnic_init_pci_info(adapter);
+ if (err)
+ return err;
+ /* Set privilege level for other functions */
+ qlcnic_set_function_modes(adapter);
+ dev_info(&adapter->pdev->dev,
+ "HAL Version: %d, Management function\n",
+ adapter->fw_hal_version);
+ } else if (priv_level == QLCNIC_PRIV_FUNC) {
+ adapter->op_mode = QLCNIC_PRIV_FUNC;
+ dev_info(&adapter->pdev->dev,
+ "HAL Version: %d, Privileged function\n",
+ adapter->fw_hal_version);
+ }
+ }
+
+ adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
+
+ return err;
+}
+
+static int
+qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_esw_func_cfg esw_cfg;
+ struct qlcnic_npar_info *npar;
+ u8 i;
+
+ if (adapter->need_fw_reset)
+ return 0;
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
+ continue;
+ memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
+ esw_cfg.pci_func = i;
+ esw_cfg.offload_flags = BIT_0;
+ esw_cfg.mac_override = BIT_0;
+ esw_cfg.promisc_mode = BIT_0;
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
+ esw_cfg.offload_flags |= (BIT_1 | BIT_2);
+ if (qlcnic_config_switch_port(adapter, &esw_cfg))
+ return -EIO;
+ npar = &adapter->npars[i];
+ npar->pvid = esw_cfg.vlan_id;
+ npar->mac_override = esw_cfg.mac_override;
+ npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
+ npar->discard_tagged = esw_cfg.discard_tagged;
+ npar->promisc_mode = esw_cfg.promisc_mode;
+ npar->offload_flags = esw_cfg.offload_flags;
+ }
+
+ return 0;
+}
+
+static int
+qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
+ struct qlcnic_npar_info *npar, int pci_func)
+{
+ struct qlcnic_esw_func_cfg esw_cfg;
+ esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
+ esw_cfg.pci_func = pci_func;
+ esw_cfg.vlan_id = npar->pvid;
+ esw_cfg.mac_override = npar->mac_override;
+ esw_cfg.discard_tagged = npar->discard_tagged;
+ esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
+ esw_cfg.offload_flags = npar->offload_flags;
+ esw_cfg.promisc_mode = npar->promisc_mode;
+ if (qlcnic_config_switch_port(adapter, &esw_cfg))
+ return -EIO;
+
+ esw_cfg.op_mode = QLCNIC_ADD_VLAN;
+ if (qlcnic_config_switch_port(adapter, &esw_cfg))
+ return -EIO;
+
+ return 0;
+}
+
+static int
+qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
+{
+ int i, err;
+ struct qlcnic_npar_info *npar;
+ struct qlcnic_info nic_info;
+
+ if (!adapter->need_fw_reset)
+ return 0;
+
+ /* Set the NPAR config data after FW reset */
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ npar = &adapter->npars[i];
+ if (npar->type != QLCNIC_TYPE_NIC)
+ continue;
+ err = qlcnic_get_nic_info(adapter, &nic_info, i);
+ if (err)
+ return err;
+ nic_info.min_tx_bw = npar->min_bw;
+ nic_info.max_tx_bw = npar->max_bw;
+ err = qlcnic_set_nic_info(adapter, &nic_info);
+ if (err)
+ return err;
+
+ if (npar->enable_pm) {
+ err = qlcnic_config_port_mirroring(adapter,
+ npar->dest_npar, 1, i);
+ if (err)
+ return err;
+ }
+ err = qlcnic_reset_eswitch_config(adapter, npar, i);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
+{
+ u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
+ u32 npar_state;
+
+ if (adapter->op_mode == QLCNIC_MGMT_FUNC)
+ return 0;
+
+ npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
+ msleep(1000);
+ npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ }
+ if (!npar_opt_timeo) {
+ dev_err(&adapter->pdev->dev,
+ "Waiting for NPAR state to opertional timeout\n");
+ return -EIO;
+ }
+ return 0;
+}
+
+static int
+qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
+{
+ int err;
+
+ if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
+ adapter->op_mode != QLCNIC_MGMT_FUNC)
+ return 0;
+
+ err = qlcnic_set_default_offload_settings(adapter);
+ if (err)
+ return err;
+
+ err = qlcnic_reset_npar_config(adapter);
+ if (err)
+ return err;
+
+ qlcnic_dev_set_npar_ready(adapter);
+
+ return err;
+}
+
+static int
+qlcnic_start_firmware(struct qlcnic_adapter *adapter)
+{
+ int err;
+
+ err = qlcnic_can_start_firmware(adapter);
+ if (err < 0)
+ return err;
+ else if (!err)
+ goto check_fw_status;
+
+ if (load_fw_file)
+ qlcnic_request_firmware(adapter);
+ else {
+ err = qlcnic_check_flash_fw_ver(adapter);
+ if (err)
+ goto err_out;
+
+ adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
+ }
+
+ err = qlcnic_need_fw_reset(adapter);
+ if (err == 0)
+ goto check_fw_status;
+
+ err = qlcnic_pinit_from_rom(adapter);
+ if (err)
+ goto err_out;
+
+ err = qlcnic_load_firmware(adapter);
+ if (err)
+ goto err_out;
+
+ qlcnic_release_firmware(adapter);
+ QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
+
+check_fw_status:
+ err = qlcnic_check_fw_status(adapter);
+ if (err)
+ goto err_out;
+
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
+ qlcnic_idc_debug_info(adapter, 1);
+
+ err = qlcnic_check_eswitch_mode(adapter);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "Memory allocation failed for eswitch\n");
+ goto err_out;
+ }
+ err = qlcnic_set_mgmt_operations(adapter);
+ if (err)
+ goto err_out;
+
+ qlcnic_check_options(adapter);
+ adapter->need_fw_reset = 0;
+
+ qlcnic_release_firmware(adapter);
+ return 0;
+
+err_out:
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
+ dev_err(&adapter->pdev->dev, "Device state set to failed\n");
+
+ qlcnic_release_firmware(adapter);
+ return err;
+}
+
+static int
+qlcnic_request_irq(struct qlcnic_adapter *adapter)
+{
+ irq_handler_t handler;
+ struct qlcnic_host_sds_ring *sds_ring;
+ int err, ring;
+
+ unsigned long flags = 0;
+ struct net_device *netdev = adapter->netdev;
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
+ handler = qlcnic_tmp_intr;
+ if (!QLCNIC_IS_MSI_FAMILY(adapter))
+ flags |= IRQF_SHARED;
+
+ } else {
+ if (adapter->flags & QLCNIC_MSIX_ENABLED)
+ handler = qlcnic_msix_intr;
+ else if (adapter->flags & QLCNIC_MSI_ENABLED)
+ handler = qlcnic_msi_intr;
+ else {
+ flags |= IRQF_SHARED;
+ handler = qlcnic_intr;
+ }
+ }
+ adapter->irq = netdev->irq;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
+ err = request_irq(sds_ring->irq, handler,
+ flags, sds_ring->name, sds_ring);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static void
+qlcnic_free_irq(struct qlcnic_adapter *adapter)
+{
+ int ring;
+ struct qlcnic_host_sds_ring *sds_ring;
+
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ free_irq(sds_ring->irq, sds_ring);
+ }
+}
+
+static int
+__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
+{
+ int ring;
+ struct qlcnic_host_rds_ring *rds_ring;
+
+ if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ return -EIO;
+
+ if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
+ return 0;
+ if (qlcnic_set_eswitch_port_config(adapter))
+ return -EIO;
+
+ if (qlcnic_fw_create_ctx(adapter))
+ return -EIO;
+
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &adapter->recv_ctx->rds_rings[ring];
+ qlcnic_post_rx_buffers(adapter, rds_ring);
+ }
+
+ qlcnic_set_multi(netdev);
+ qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
+
+ adapter->ahw->linkup = 0;
+
+ if (adapter->max_sds_rings > 1)
+ qlcnic_config_rss(adapter, 1);
+
+ qlcnic_config_intr_coalesce(adapter);
+
+ if (netdev->features & NETIF_F_LRO)
+ qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
+
+ qlcnic_napi_enable(adapter);
+
+ qlcnic_linkevent_request(adapter, 1);
+
+ adapter->reset_context = 0;
+ set_bit(__QLCNIC_DEV_UP, &adapter->state);
+ return 0;
+}
+
+/* Usage: During resume and firmware recovery module.*/
+
+static int
+qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
+{
+ int err = 0;
+
+ rtnl_lock();
+ if (netif_running(netdev))
+ err = __qlcnic_up(adapter, netdev);
+ rtnl_unlock();
+
+ return err;
+}
+
+static void
+__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
+{
+ if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ return;
+
+ if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
+ return;
+
+ smp_mb();
+ spin_lock(&adapter->tx_clean_lock);
+ netif_carrier_off(netdev);
+ netif_tx_disable(netdev);
+
+ qlcnic_free_mac_list(adapter);
+
+ if (adapter->fhash.fnum)
+ qlcnic_delete_lb_filters(adapter);
+
+ qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
+
+ qlcnic_napi_disable(adapter);
+
+ qlcnic_fw_destroy_ctx(adapter);
+
+ qlcnic_reset_rx_buffers_list(adapter);
+ qlcnic_release_tx_buffers(adapter);
+ spin_unlock(&adapter->tx_clean_lock);
+}
+
+/* Usage: During suspend and firmware recovery module */
+
+static void
+qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
+{
+ rtnl_lock();
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+ rtnl_unlock();
+
+}
+
+static int
+qlcnic_attach(struct qlcnic_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ int err;
+
+ if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
+ return 0;
+
+ err = qlcnic_napi_add(adapter, netdev);
+ if (err)
+ return err;
+
+ err = qlcnic_alloc_sw_resources(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Error in setting sw resources\n");
+ goto err_out_napi_del;
+ }
+
+ err = qlcnic_alloc_hw_resources(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Error in setting hw resources\n");
+ goto err_out_free_sw;
+ }
+
+ err = qlcnic_request_irq(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "failed to setup interrupt\n");
+ goto err_out_free_hw;
+ }
+
+ qlcnic_create_sysfs_entries(adapter);
+
+ adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
+ return 0;
+
+err_out_free_hw:
+ qlcnic_free_hw_resources(adapter);
+err_out_free_sw:
+ qlcnic_free_sw_resources(adapter);
+err_out_napi_del:
+ qlcnic_napi_del(adapter);
+ return err;
+}
+
+static void
+qlcnic_detach(struct qlcnic_adapter *adapter)
+{
+ if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+ return;
+
+ qlcnic_remove_sysfs_entries(adapter);
+
+ qlcnic_free_hw_resources(adapter);
+ qlcnic_release_rx_buffers(adapter);
+ qlcnic_free_irq(adapter);
+ qlcnic_napi_del(adapter);
+ qlcnic_free_sw_resources(adapter);
+
+ adapter->is_up = 0;
+}
+
+void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct qlcnic_host_sds_ring *sds_ring;
+ int ring;
+
+ clear_bit(__QLCNIC_DEV_UP, &adapter->state);
+ if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &adapter->recv_ctx->sds_rings[ring];
+ qlcnic_disable_int(sds_ring);
+ }
+ }
+
+ qlcnic_fw_destroy_ctx(adapter);
+
+ qlcnic_detach(adapter);
+
+ adapter->diag_test = 0;
+ adapter->max_sds_rings = max_sds_rings;
+
+ if (qlcnic_attach(adapter))
+ goto out;
+
+ if (netif_running(netdev))
+ __qlcnic_up(adapter, netdev);
+out:
+ netif_device_attach(netdev);
+}
+
+static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
+{
+ int err = 0;
+ adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
+ GFP_KERNEL);
+ if (!adapter->ahw) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to allocate recv ctx resources for adapter\n");
+ err = -ENOMEM;
+ goto err_out;
+ }
+ adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
+ GFP_KERNEL);
+ if (!adapter->recv_ctx) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to allocate recv ctx resources for adapter\n");
+ kfree(adapter->ahw);
+ adapter->ahw = NULL;
+ err = -ENOMEM;
+ goto err_out;
+ }
+ /* Initialize interrupt coalesce parameters */
+ adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
+ adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
+ adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
+err_out:
+ return err;
+}
+
+static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
+{
+ kfree(adapter->recv_ctx);
+ adapter->recv_ctx = NULL;
+
+ if (adapter->ahw->fw_dump.tmpl_hdr) {
+ vfree(adapter->ahw->fw_dump.tmpl_hdr);
+ adapter->ahw->fw_dump.tmpl_hdr = NULL;
+ }
+ kfree(adapter->ahw);
+ adapter->ahw = NULL;
+}
+
+int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct qlcnic_host_sds_ring *sds_ring;
+ struct qlcnic_host_rds_ring *rds_ring;
+ int ring;
+ int ret;
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+
+ qlcnic_detach(adapter);
+
+ adapter->max_sds_rings = 1;
+ adapter->diag_test = test;
+
+ ret = qlcnic_attach(adapter);
+ if (ret) {
+ netif_device_attach(netdev);
+ return ret;
+ }
+
+ ret = qlcnic_fw_create_ctx(adapter);
+ if (ret) {
+ qlcnic_detach(adapter);
+ netif_device_attach(netdev);
+ return ret;
+ }
+
+ for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+ rds_ring = &adapter->recv_ctx->rds_rings[ring];
+ qlcnic_post_rx_buffers(adapter, rds_ring);
+ }
+
+ if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &adapter->recv_ctx->sds_rings[ring];
+ qlcnic_enable_int(sds_ring);
+ }
+ }
+
+ if (adapter->diag_test == QLCNIC_LOOPBACK_TEST) {
+ adapter->ahw->loopback_state = 0;
+ qlcnic_linkevent_request(adapter, 1);
+ }
+
+ set_bit(__QLCNIC_DEV_UP, &adapter->state);
+
+ return 0;
+}
+
+/* Reset context in hardware only */
+static int
+qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EBUSY;
+
+ netif_device_detach(netdev);
+
+ qlcnic_down(adapter, netdev);
+
+ qlcnic_up(adapter, netdev);
+
+ netif_device_attach(netdev);
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ return 0;
+}
+
+int
+qlcnic_reset_context(struct qlcnic_adapter *adapter)
+{
+ int err = 0;
+ struct net_device *netdev = adapter->netdev;
+
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EBUSY;
+
+ if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+
+ qlcnic_detach(adapter);
+
+ if (netif_running(netdev)) {
+ err = qlcnic_attach(adapter);
+ if (!err)
+ __qlcnic_up(adapter, netdev);
+ }
+
+ netif_device_attach(netdev);
+ }
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ return err;
+}
+
+static int
+qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
+ struct net_device *netdev, u8 pci_using_dac)
+{
+ int err;
+ struct pci_dev *pdev = adapter->pdev;
+
+ adapter->mc_enabled = 0;
+ adapter->max_mc_count = 38;
+
+ netdev->netdev_ops = &qlcnic_netdev_ops;
+ netdev->watchdog_timeo = 5*HZ;
+
+ qlcnic_change_mtu(netdev, netdev->mtu);
+
+ SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
+
+ netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
+
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
+ netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
+ if (pci_using_dac)
+ netdev->hw_features |= NETIF_F_HIGHDMA;
+
+ netdev->vlan_features = netdev->hw_features;
+
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
+ netdev->hw_features |= NETIF_F_HW_VLAN_TX;
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
+ netdev->hw_features |= NETIF_F_LRO;
+
+ netdev->features |= netdev->hw_features |
+ NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
+
+ netdev->irq = adapter->msix_entries[0].vector;
+
+ err = register_netdev(netdev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register net device\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
+{
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
+ !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ *pci_using_dac = 1;
+ else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
+ !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
+ *pci_using_dac = 0;
+ else {
+ dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int
+qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
+{
+ adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
+ GFP_KERNEL);
+
+ if (adapter->msix_entries)
+ return 0;
+
+ dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
+ return -ENOMEM;
+}
+
+static int __devinit
+qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct net_device *netdev = NULL;
+ struct qlcnic_adapter *adapter = NULL;
+ int err;
+ uint8_t revision_id;
+ uint8_t pci_using_dac;
+ char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
+
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+
+ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+ err = -ENODEV;
+ goto err_out_disable_pdev;
+ }
+
+ err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
+ if (err)
+ goto err_out_disable_pdev;
+
+ err = pci_request_regions(pdev, qlcnic_driver_name);
+ if (err)
+ goto err_out_disable_pdev;
+
+ pci_set_master(pdev);
+ pci_enable_pcie_error_reporting(pdev);
+
+ netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
+ if (!netdev) {
+ dev_err(&pdev->dev, "failed to allocate net_device\n");
+ err = -ENOMEM;
+ goto err_out_free_res;
+ }
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ adapter = netdev_priv(netdev);
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+
+ if (qlcnic_alloc_adapter_resources(adapter))
+ goto err_out_free_netdev;
+
+ adapter->dev_rst_time = jiffies;
+ revision_id = pdev->revision;
+ adapter->ahw->revision_id = revision_id;
+ adapter->mac_learn = qlcnic_mac_learn;
+
+ rwlock_init(&adapter->ahw->crb_lock);
+ mutex_init(&adapter->ahw->mem_lock);
+
+ spin_lock_init(&adapter->tx_clean_lock);
+ INIT_LIST_HEAD(&adapter->mac_list);
+
+ err = qlcnic_setup_pci_map(adapter);
+ if (err)
+ goto err_out_free_hw;
+
+ /* This will be reset for mezz cards */
+ adapter->portnum = adapter->ahw->pci_func;
+
+ err = qlcnic_get_board_info(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Error getting board config info.\n");
+ goto err_out_iounmap;
+ }
+
+ err = qlcnic_setup_idc_param(adapter);
+ if (err)
+ goto err_out_iounmap;
+
+ adapter->flags |= QLCNIC_NEED_FLR;
+
+ err = adapter->nic_ops->start_firmware(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
+ goto err_out_decr_ref;
+ }
+
+ if (qlcnic_read_mac_addr(adapter))
+ dev_warn(&pdev->dev, "failed to read mac addr\n");
+
+ if (adapter->portnum == 0) {
+ get_brd_name(adapter, brd_name);
+
+ pr_info("%s: %s Board Chip rev 0x%x\n",
+ module_name(THIS_MODULE),
+ brd_name, adapter->ahw->revision_id);
+ }
+
+ qlcnic_clear_stats(adapter);
+
+ err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques);
+ if (err)
+ goto err_out_decr_ref;
+
+ qlcnic_setup_intr(adapter);
+
+ err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
+ if (err)
+ goto err_out_disable_msi;
+
+ pci_set_drvdata(pdev, adapter);
+
+ qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
+
+ switch (adapter->ahw->port_type) {
+ case QLCNIC_GBE:
+ dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
+ adapter->netdev->name);
+ break;
+ case QLCNIC_XGBE:
+ dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
+ adapter->netdev->name);
+ break;
+ }
+
+ if (adapter->mac_learn)
+ qlcnic_alloc_lb_filters_mem(adapter);
+
+ qlcnic_create_diag_entries(adapter);
+
+ return 0;
+
+err_out_disable_msi:
+ qlcnic_teardown_intr(adapter);
+ kfree(adapter->msix_entries);
+
+err_out_decr_ref:
+ qlcnic_clr_all_drv_state(adapter, 0);
+
+err_out_iounmap:
+ qlcnic_cleanup_pci_map(adapter);
+
+err_out_free_hw:
+ qlcnic_free_adapter_resources(adapter);
+
+err_out_free_netdev:
+ free_netdev(netdev);
+
+err_out_free_res:
+ pci_release_regions(pdev);
+
+err_out_disable_pdev:
+ pci_set_drvdata(pdev, NULL);
+ pci_disable_device(pdev);
+ return err;
+}
+
+static void __devexit qlcnic_remove(struct pci_dev *pdev)
+{
+ struct qlcnic_adapter *adapter;
+ struct net_device *netdev;
+
+ adapter = pci_get_drvdata(pdev);
+ if (adapter == NULL)
+ return;
+
+ netdev = adapter->netdev;
+
+ qlcnic_cancel_fw_work(adapter);
+
+ unregister_netdev(netdev);
+
+ qlcnic_detach(adapter);
+
+ if (adapter->npars != NULL)
+ kfree(adapter->npars);
+ if (adapter->eswitch != NULL)
+ kfree(adapter->eswitch);
+
+ qlcnic_clr_all_drv_state(adapter, 0);
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+ qlcnic_free_lb_filters_mem(adapter);
+
+ qlcnic_teardown_intr(adapter);
+ kfree(adapter->msix_entries);
+
+ qlcnic_remove_diag_entries(adapter);
+
+ qlcnic_cleanup_pci_map(adapter);
+
+ qlcnic_release_firmware(adapter);
+
+ pci_disable_pcie_error_reporting(pdev);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ qlcnic_free_adapter_resources(adapter);
+ free_netdev(netdev);
+}
+static int __qlcnic_shutdown(struct pci_dev *pdev)
+{
+ struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+ struct net_device *netdev = adapter->netdev;
+ int retval;
+
+ netif_device_detach(netdev);
+
+ qlcnic_cancel_fw_work(adapter);
+
+ if (netif_running(netdev))
+ qlcnic_down(adapter, netdev);
+
+ qlcnic_clr_all_drv_state(adapter, 0);
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+ retval = pci_save_state(pdev);
+ if (retval)
+ return retval;
+
+ if (qlcnic_wol_supported(adapter)) {
+ pci_enable_wake(pdev, PCI_D3cold, 1);
+ pci_enable_wake(pdev, PCI_D3hot, 1);
+ }
+
+ return 0;
+}
+
+static void qlcnic_shutdown(struct pci_dev *pdev)
+{
+ if (__qlcnic_shutdown(pdev))
+ return;
+
+ pci_disable_device(pdev);
+}
+
+#ifdef CONFIG_PM
+static int
+qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ int retval;
+
+ retval = __qlcnic_shutdown(pdev);
+ if (retval)
+ return retval;
+
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ return 0;
+}
+
+static int
+qlcnic_resume(struct pci_dev *pdev)
+{
+ struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+ struct net_device *netdev = adapter->netdev;
+ int err;
+
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_set_master(pdev);
+ pci_restore_state(pdev);
+
+ err = adapter->nic_ops->start_firmware(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "failed to start firmware\n");
+ return err;
+ }
+
+ if (netif_running(netdev)) {
+ err = qlcnic_up(adapter, netdev);
+ if (err)
+ goto done;
+
+ qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+ }
+done:
+ netif_device_attach(netdev);
+ qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
+ return 0;
+}
+#endif
+
+static int qlcnic_open(struct net_device *netdev)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ int err;
+
+ netif_carrier_off(netdev);
+
+ err = qlcnic_attach(adapter);
+ if (err)
+ return err;
+
+ err = __qlcnic_up(adapter, netdev);
+ if (err)
+ goto err_out;
+
+ netif_start_queue(netdev);
+
+ return 0;
+
+err_out:
+ qlcnic_detach(adapter);
+ return err;
+}
+
+/*
+ * qlcnic_close - Disables a network interface entry point
+ */
+static int qlcnic_close(struct net_device *netdev)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+
+ __qlcnic_down(adapter, netdev);
+ return 0;
+}
+
+void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
+{
+ void *head;
+ int i;
+
+ if (adapter->fhash.fmax && adapter->fhash.fhead)
+ return;
+
+ spin_lock_init(&adapter->mac_learn_lock);
+
+ head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
+ GFP_KERNEL);
+ if (!head)
+ return;
+
+ adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
+ adapter->fhash.fhead = head;
+
+ for (i = 0; i < adapter->fhash.fmax; i++)
+ INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
+}
+
+static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
+{
+ if (adapter->fhash.fmax && adapter->fhash.fhead)
+ kfree(adapter->fhash.fhead);
+
+ adapter->fhash.fhead = NULL;
+ adapter->fhash.fmax = 0;
+}
+
+static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
+ u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
+{
+ struct cmd_desc_type0 *hwdesc;
+ struct qlcnic_nic_req *req;
+ struct qlcnic_mac_req *mac_req;
+ struct qlcnic_vlan_req *vlan_req;
+ u32 producer;
+ u64 word;
+
+ producer = tx_ring->producer;
+ hwdesc = &tx_ring->desc_head[tx_ring->producer];
+
+ req = (struct qlcnic_nic_req *)hwdesc;
+ memset(req, 0, sizeof(struct qlcnic_nic_req));
+ req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
+
+ word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
+ req->req_hdr = cpu_to_le64(word);
+
+ mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
+ mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
+ memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
+
+ vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
+ vlan_req->vlan_id = vlan_id;
+
+ tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
+ smp_mb();
+}
+
+#define QLCNIC_MAC_HASH(MAC)\
+ ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
+
+static void
+qlcnic_send_filter(struct qlcnic_adapter *adapter,
+ struct qlcnic_host_tx_ring *tx_ring,
+ struct cmd_desc_type0 *first_desc,
+ struct sk_buff *skb)
+{
+ struct ethhdr *phdr = (struct ethhdr *)(skb->data);
+ struct qlcnic_filter *fil, *tmp_fil;
+ struct hlist_node *tmp_hnode, *n;
+ struct hlist_head *head;
+ u64 src_addr = 0;
+ __le16 vlan_id = 0;
+ u8 hindex;
+
+ if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
+ return;
+
+ if (adapter->fhash.fnum >= adapter->fhash.fmax)
+ return;
+
+ /* Only NPAR capable devices support vlan based learning*/
+ if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
+ vlan_id = first_desc->vlan_TCI;
+ memcpy(&src_addr, phdr->h_source, ETH_ALEN);
+ hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
+ head = &(adapter->fhash.fhead[hindex]);
+
+ hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
+ if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
+ tmp_fil->vlan_id == vlan_id) {
+
+ if (jiffies >
+ (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
+ qlcnic_change_filter(adapter, src_addr, vlan_id,
+ tx_ring);
+ tmp_fil->ftime = jiffies;
+ return;
+ }
+ }
+
+ fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
+ if (!fil)
+ return;
+
+ qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
+
+ fil->ftime = jiffies;
+ fil->vlan_id = vlan_id;
+ memcpy(fil->faddr, &src_addr, ETH_ALEN);
+ spin_lock(&adapter->mac_learn_lock);
+ hlist_add_head(&(fil->fnode), head);
+ adapter->fhash.fnum++;
+ spin_unlock(&adapter->mac_learn_lock);
+}
+
+static int
+qlcnic_tx_pkt(struct qlcnic_adapter *adapter,
+ struct cmd_desc_type0 *first_desc,
+ struct sk_buff *skb)
+{
+ u8 opcode = 0, hdr_len = 0;
+ u16 flags = 0, vlan_tci = 0;
+ int copied, offset, copy_len;
+ struct cmd_desc_type0 *hwdesc;
+ struct vlan_ethhdr *vh;
+ struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
+ u16 protocol = ntohs(skb->protocol);
+ u32 producer = tx_ring->producer;
+
+ if (protocol == ETH_P_8021Q) {
+ vh = (struct vlan_ethhdr *)skb->data;
+ flags = FLAGS_VLAN_TAGGED;
+ vlan_tci = vh->h_vlan_TCI;
+ } else if (vlan_tx_tag_present(skb)) {
+ flags = FLAGS_VLAN_OOB;
+ vlan_tci = vlan_tx_tag_get(skb);
+ }
+ if (unlikely(adapter->pvid)) {
+ if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED))
+ return -EIO;
+ if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED))
+ goto set_flags;
+
+ flags = FLAGS_VLAN_OOB;
+ vlan_tci = adapter->pvid;
+ }
+set_flags:
+ qlcnic_set_tx_vlan_tci(first_desc, vlan_tci);
+ qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
+
+ if (*(skb->data) & BIT_0) {
+ flags |= BIT_0;
+ memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
+ }
+ opcode = TX_ETHER_PKT;
+ if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
+ skb_shinfo(skb)->gso_size > 0) {
+
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+
+ first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
+ first_desc->total_hdr_length = hdr_len;
+
+ opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO;
+
+ /* For LSO, we need to copy the MAC/IP/TCP headers into
+ * the descriptor ring */
+ copied = 0;
+ offset = 2;
+
+ if (flags & FLAGS_VLAN_OOB) {
+ first_desc->total_hdr_length += VLAN_HLEN;
+ first_desc->tcp_hdr_offset = VLAN_HLEN;
+ first_desc->ip_hdr_offset = VLAN_HLEN;
+ /* Only in case of TSO on vlan device */
+ flags |= FLAGS_VLAN_TAGGED;
+
+ /* Create a TSO vlan header template for firmware */
+
+ hwdesc = &tx_ring->desc_head[producer];
+ tx_ring->cmd_buf_arr[producer].skb = NULL;
+
+ copy_len = min((int)sizeof(struct cmd_desc_type0) -
+ offset, hdr_len + VLAN_HLEN);
+
+ vh = (struct vlan_ethhdr *)((char *) hwdesc + 2);
+ skb_copy_from_linear_data(skb, vh, 12);
+ vh->h_vlan_proto = htons(ETH_P_8021Q);
+ vh->h_vlan_TCI = htons(vlan_tci);
+
+ skb_copy_from_linear_data_offset(skb, 12,
+ (char *)vh + 16, copy_len - 16);
+
+ copied = copy_len - VLAN_HLEN;
+ offset = 0;
+
+ producer = get_next_index(producer, tx_ring->num_desc);
+ }
+
+ while (copied < hdr_len) {
+
+ copy_len = min((int)sizeof(struct cmd_desc_type0) -
+ offset, (hdr_len - copied));
+
+ hwdesc = &tx_ring->desc_head[producer];
+ tx_ring->cmd_buf_arr[producer].skb = NULL;
+
+ skb_copy_from_linear_data_offset(skb, copied,
+ (char *) hwdesc + offset, copy_len);
+
+ copied += copy_len;
+ offset = 0;
+
+ producer = get_next_index(producer, tx_ring->num_desc);
+ }
+
+ tx_ring->producer = producer;
+ smp_mb();
+ adapter->stats.lso_frames++;
+
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ u8 l4proto;
+
+ if (protocol == ETH_P_IP) {
+ l4proto = ip_hdr(skb)->protocol;
+
+ if (l4proto == IPPROTO_TCP)
+ opcode = TX_TCP_PKT;
+ else if (l4proto == IPPROTO_UDP)
+ opcode = TX_UDP_PKT;
+ } else if (protocol == ETH_P_IPV6) {
+ l4proto = ipv6_hdr(skb)->nexthdr;
+
+ if (l4proto == IPPROTO_TCP)
+ opcode = TX_TCPV6_PKT;
+ else if (l4proto == IPPROTO_UDP)
+ opcode = TX_UDPV6_PKT;
+ }
+ }
+ first_desc->tcp_hdr_offset += skb_transport_offset(skb);
+ first_desc->ip_hdr_offset += skb_network_offset(skb);
+ qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
+
+ return 0;
+}
+
+static int
+qlcnic_map_tx_skb(struct pci_dev *pdev,
+ struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
+{
+ struct qlcnic_skb_frag *nf;
+ struct skb_frag_struct *frag;
+ int i, nr_frags;
+ dma_addr_t map;
+
+ nr_frags = skb_shinfo(skb)->nr_frags;
+ nf = &pbuf->frag_array[0];
+
+ map = pci_map_single(pdev, skb->data,
+ skb_headlen(skb), PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(pdev, map))
+ goto out_err;
+
+ nf->dma = map;
+ nf->length = skb_headlen(skb);
+
+ for (i = 0; i < nr_frags; i++) {
+ frag = &skb_shinfo(skb)->frags[i];
+ nf = &pbuf->frag_array[i+1];
+
+ map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&pdev->dev, map))
+ goto unwind;
+
+ nf->dma = map;
+ nf->length = skb_frag_size(frag);
+ }
+
+ return 0;
+
+unwind:
+ while (--i >= 0) {
+ nf = &pbuf->frag_array[i+1];
+ pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
+ }
+
+ nf = &pbuf->frag_array[0];
+ pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
+
+out_err:
+ return -ENOMEM;
+}
+
+static void
+qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb,
+ struct qlcnic_cmd_buffer *pbuf)
+{
+ struct qlcnic_skb_frag *nf = &pbuf->frag_array[0];
+ int nr_frags = skb_shinfo(skb)->nr_frags;
+ int i;
+
+ for (i = 0; i < nr_frags; i++) {
+ nf = &pbuf->frag_array[i+1];
+ pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
+ }
+
+ nf = &pbuf->frag_array[0];
+ pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
+ pbuf->skb = NULL;
+}
+
+static inline void
+qlcnic_clear_cmddesc(u64 *desc)
+{
+ desc[0] = 0ULL;
+ desc[2] = 0ULL;
+ desc[7] = 0ULL;
+}
+
+netdev_tx_t
+qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
+ struct qlcnic_cmd_buffer *pbuf;
+ struct qlcnic_skb_frag *buffrag;
+ struct cmd_desc_type0 *hwdesc, *first_desc;
+ struct pci_dev *pdev;
+ struct ethhdr *phdr;
+ int delta = 0;
+ int i, k;
+
+ u32 producer;
+ int frag_count;
+ u32 num_txd = tx_ring->num_desc;
+
+ if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
+ netif_stop_queue(netdev);
+ return NETDEV_TX_BUSY;
+ }
+
+ if (adapter->flags & QLCNIC_MACSPOOF) {
+ phdr = (struct ethhdr *)skb->data;
+ if (compare_ether_addr(phdr->h_source,
+ adapter->mac_addr))
+ goto drop_packet;
+ }
+
+ frag_count = skb_shinfo(skb)->nr_frags + 1;
+ /* 14 frags supported for normal packet and
+ * 32 frags supported for TSO packet
+ */
+ if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
+
+ for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
+ delta += skb_frag_size(&skb_shinfo(skb)->frags[i]);
+
+ if (!__pskb_pull_tail(skb, delta))
+ goto drop_packet;
+
+ frag_count = 1 + skb_shinfo(skb)->nr_frags;
+ }
+
+ if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
+ netif_stop_queue(netdev);
+ if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
+ netif_start_queue(netdev);
+ else {
+ adapter->stats.xmit_off++;
+ return NETDEV_TX_BUSY;
+ }
+ }
+
+ producer = tx_ring->producer;
+ pbuf = &tx_ring->cmd_buf_arr[producer];
+
+ pdev = adapter->pdev;
+
+ first_desc = hwdesc = &tx_ring->desc_head[producer];
+ qlcnic_clear_cmddesc((u64 *)hwdesc);
+
+ if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
+ adapter->stats.tx_dma_map_error++;
+ goto drop_packet;
+ }
+
+ pbuf->skb = skb;
+ pbuf->frag_count = frag_count;
+
+ qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
+ qlcnic_set_tx_port(first_desc, adapter->portnum);
+
+ for (i = 0; i < frag_count; i++) {
+
+ k = i % 4;
+
+ if ((k == 0) && (i > 0)) {
+ /* move to next desc.*/
+ producer = get_next_index(producer, num_txd);
+ hwdesc = &tx_ring->desc_head[producer];
+ qlcnic_clear_cmddesc((u64 *)hwdesc);
+ tx_ring->cmd_buf_arr[producer].skb = NULL;
+ }
+
+ buffrag = &pbuf->frag_array[i];
+
+ hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
+ switch (k) {
+ case 0:
+ hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
+ break;
+ case 1:
+ hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
+ break;
+ case 2:
+ hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
+ break;
+ case 3:
+ hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
+ break;
+ }
+ }
+
+ tx_ring->producer = get_next_index(producer, num_txd);
+ smp_mb();
+
+ if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
+ goto unwind_buff;
+
+ if (adapter->mac_learn)
+ qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
+
+ adapter->stats.txbytes += skb->len;
+ adapter->stats.xmitcalled++;
+
+ qlcnic_update_cmd_producer(adapter, tx_ring);
+
+ return NETDEV_TX_OK;
+
+unwind_buff:
+ qlcnic_unmap_buffers(pdev, skb, pbuf);
+drop_packet:
+ adapter->stats.txdropped++;
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ u32 temp, temp_state, temp_val;
+ int rv = 0;
+
+ temp = QLCRD32(adapter, CRB_TEMP_STATE);
+
+ temp_state = qlcnic_get_temp_state(temp);
+ temp_val = qlcnic_get_temp_val(temp);
+
+ if (temp_state == QLCNIC_TEMP_PANIC) {
+ dev_err(&netdev->dev,
+ "Device temperature %d degrees C exceeds"
+ " maximum allowed. Hardware has been shut down.\n",
+ temp_val);
+ rv = 1;
+ } else if (temp_state == QLCNIC_TEMP_WARN) {
+ if (adapter->temp == QLCNIC_TEMP_NORMAL) {
+ dev_err(&netdev->dev,
+ "Device temperature %d degrees C "
+ "exceeds operating range."
+ " Immediate action needed.\n",
+ temp_val);
+ }
+ } else {
+ if (adapter->temp == QLCNIC_TEMP_WARN) {
+ dev_info(&netdev->dev,
+ "Device temperature is now %d degrees C"
+ " in normal range.\n", temp_val);
+ }
+ }
+ adapter->temp = temp_state;
+ return rv;
+}
+
+void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (adapter->ahw->linkup && !linkup) {
+ netdev_info(netdev, "NIC Link is down\n");
+ adapter->ahw->linkup = 0;
+ if (netif_running(netdev)) {
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+ }
+ } else if (!adapter->ahw->linkup && linkup) {
+ netdev_info(netdev, "NIC Link is up\n");
+ adapter->ahw->linkup = 1;
+ if (netif_running(netdev)) {
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ }
+ }
+}
+
+static void qlcnic_tx_timeout(struct net_device *netdev)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+
+ if (test_bit(__QLCNIC_RESETTING, &adapter->state))
+ return;
+
+ dev_err(&netdev->dev, "transmit timeout, resetting.\n");
+
+ if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
+ adapter->need_fw_reset = 1;
+ else
+ adapter->reset_context = 1;
+}
+
+static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct net_device_stats *stats = &netdev->stats;
+
+ stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
+ stats->tx_packets = adapter->stats.xmitfinished;
+ stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
+ stats->tx_bytes = adapter->stats.txbytes;
+ stats->rx_dropped = adapter->stats.rxdropped;
+ stats->tx_dropped = adapter->stats.txdropped;
+
+ return stats;
+}
+
+static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
+{
+ u32 status;
+
+ status = readl(adapter->isr_int_vec);
+
+ if (!(status & adapter->int_vec_bit))
+ return IRQ_NONE;
+
+ /* check interrupt state machine, to be sure */
+ status = readl(adapter->crb_int_state_reg);
+ if (!ISR_LEGACY_INT_TRIGGERED(status))
+ return IRQ_NONE;
+
+ writel(0xffffffff, adapter->tgt_status_reg);
+ /* read twice to ensure write is flushed */
+ readl(adapter->isr_int_vec);
+ readl(adapter->isr_int_vec);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
+{
+ struct qlcnic_host_sds_ring *sds_ring = data;
+ struct qlcnic_adapter *adapter = sds_ring->adapter;
+
+ if (adapter->flags & QLCNIC_MSIX_ENABLED)
+ goto done;
+ else if (adapter->flags & QLCNIC_MSI_ENABLED) {
+ writel(0xffffffff, adapter->tgt_status_reg);
+ goto done;
+ }
+
+ if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
+ return IRQ_NONE;
+
+done:
+ adapter->diag_cnt++;
+ qlcnic_enable_int(sds_ring);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t qlcnic_intr(int irq, void *data)
+{
+ struct qlcnic_host_sds_ring *sds_ring = data;
+ struct qlcnic_adapter *adapter = sds_ring->adapter;
+
+ if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
+ return IRQ_NONE;
+
+ napi_schedule(&sds_ring->napi);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t qlcnic_msi_intr(int irq, void *data)
+{
+ struct qlcnic_host_sds_ring *sds_ring = data;
+ struct qlcnic_adapter *adapter = sds_ring->adapter;
+
+ /* clear interrupt */
+ writel(0xffffffff, adapter->tgt_status_reg);
+
+ napi_schedule(&sds_ring->napi);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t qlcnic_msix_intr(int irq, void *data)
+{
+ struct qlcnic_host_sds_ring *sds_ring = data;
+
+ napi_schedule(&sds_ring->napi);
+ return IRQ_HANDLED;
+}
+
+static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
+{
+ u32 sw_consumer, hw_consumer;
+ int count = 0, i;
+ struct qlcnic_cmd_buffer *buffer;
+ struct pci_dev *pdev = adapter->pdev;
+ struct net_device *netdev = adapter->netdev;
+ struct qlcnic_skb_frag *frag;
+ int done;
+ struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
+
+ if (!spin_trylock(&adapter->tx_clean_lock))
+ return 1;
+
+ sw_consumer = tx_ring->sw_consumer;
+ hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
+
+ while (sw_consumer != hw_consumer) {
+ buffer = &tx_ring->cmd_buf_arr[sw_consumer];
+ if (buffer->skb) {
+ frag = &buffer->frag_array[0];
+ pci_unmap_single(pdev, frag->dma, frag->length,
+ PCI_DMA_TODEVICE);
+ frag->dma = 0ULL;
+ for (i = 1; i < buffer->frag_count; i++) {
+ frag++;
+ pci_unmap_page(pdev, frag->dma, frag->length,
+ PCI_DMA_TODEVICE);
+ frag->dma = 0ULL;
+ }
+
+ adapter->stats.xmitfinished++;
+ dev_kfree_skb_any(buffer->skb);
+ buffer->skb = NULL;
+ }
+
+ sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
+ if (++count >= MAX_STATUS_HANDLE)
+ break;
+ }
+
+ if (count && netif_running(netdev)) {
+ tx_ring->sw_consumer = sw_consumer;
+
+ smp_mb();
+
+ if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
+ if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
+ netif_wake_queue(netdev);
+ adapter->stats.xmit_on++;
+ }
+ }
+ adapter->tx_timeo_cnt = 0;
+ }
+ /*
+ * If everything is freed up to consumer then check if the ring is full
+ * If the ring is full then check if more needs to be freed and
+ * schedule the call back again.
+ *
+ * This happens when there are 2 CPUs. One could be freeing and the
+ * other filling it. If the ring is full when we get out of here and
+ * the card has already interrupted the host then the host can miss the
+ * interrupt.
+ *
+ * There is still a possible race condition and the host could miss an
+ * interrupt. The card has to take care of this.
+ */
+ hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
+ done = (sw_consumer == hw_consumer);
+ spin_unlock(&adapter->tx_clean_lock);
+
+ return done;
+}
+
+static int qlcnic_poll(struct napi_struct *napi, int budget)
+{
+ struct qlcnic_host_sds_ring *sds_ring =
+ container_of(napi, struct qlcnic_host_sds_ring, napi);
+
+ struct qlcnic_adapter *adapter = sds_ring->adapter;
+
+ int tx_complete;
+ int work_done;
+
+ tx_complete = qlcnic_process_cmd_ring(adapter);
+
+ work_done = qlcnic_process_rcv_ring(sds_ring, budget);
+
+ if ((work_done < budget) && tx_complete) {
+ napi_complete(&sds_ring->napi);
+ if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
+ qlcnic_enable_int(sds_ring);
+ }
+
+ return work_done;
+}
+
+static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct qlcnic_host_sds_ring *sds_ring =
+ container_of(napi, struct qlcnic_host_sds_ring, napi);
+
+ struct qlcnic_adapter *adapter = sds_ring->adapter;
+ int work_done;
+
+ work_done = qlcnic_process_rcv_ring(sds_ring, budget);
+
+ if (work_done < budget) {
+ napi_complete(&sds_ring->napi);
+ if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
+ qlcnic_enable_int(sds_ring);
+ }
+
+ return work_done;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void qlcnic_poll_controller(struct net_device *netdev)
+{
+ int ring;
+ struct qlcnic_host_sds_ring *sds_ring;
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+ disable_irq(adapter->irq);
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ qlcnic_intr(adapter->irq, sds_ring);
+ }
+ enable_irq(adapter->irq);
+}
+#endif
+
+static void
+qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
+{
+ u32 val;
+
+ val = adapter->portnum & 0xf;
+ val |= encoding << 7;
+ val |= (jiffies - adapter->dev_rst_time) << 8;
+
+ QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
+ adapter->dev_rst_time = jiffies;
+}
+
+static int
+qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
+{
+ u32 val;
+
+ WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
+ state != QLCNIC_DEV_NEED_QUISCENT);
+
+ if (qlcnic_api_lock(adapter))
+ return -EIO;
+
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+
+ if (state == QLCNIC_DEV_NEED_RESET)
+ QLC_DEV_SET_RST_RDY(val, adapter->portnum);
+ else if (state == QLCNIC_DEV_NEED_QUISCENT)
+ QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
+
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+
+ qlcnic_api_unlock(adapter);
+
+ return 0;
+}
+
+static int
+qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
+{
+ u32 val;
+
+ if (qlcnic_api_lock(adapter))
+ return -EBUSY;
+
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+
+ qlcnic_api_unlock(adapter);
+
+ return 0;
+}
+
+static void
+qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
+{
+ u32 val;
+
+ if (qlcnic_api_lock(adapter))
+ goto err;
+
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
+ QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
+
+ if (failed) {
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
+ dev_info(&adapter->pdev->dev,
+ "Device state set to Failed. Please Reboot\n");
+ } else if (!(val & 0x11111111))
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
+
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+
+ qlcnic_api_unlock(adapter);
+err:
+ adapter->fw_fail_cnt = 0;
+ adapter->flags &= ~QLCNIC_FW_HANG;
+ clear_bit(__QLCNIC_START_FW, &adapter->state);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+}
+
+/* Grab api lock, before checking state */
+static int
+qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
+{
+ int act, state, active_mask;
+
+ state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
+
+ if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
+ active_mask = (~(1 << (adapter->ahw->pci_func * 4)));
+ act = act & active_mask;
+ }
+
+ if (((state & 0x11111111) == (act & 0x11111111)) ||
+ ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
+ return 0;
+ else
+ return 1;
+}
+
+static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
+{
+ u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
+
+ if (val != QLCNIC_DRV_IDC_VER) {
+ dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
+ " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
+ }
+
+ return 0;
+}
+
+static int
+qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
+{
+ u32 val, prev_state;
+ u8 dev_init_timeo = adapter->dev_init_timeo;
+ u8 portnum = adapter->portnum;
+ u8 ret;
+
+ if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
+ return 1;
+
+ if (qlcnic_api_lock(adapter))
+ return -1;
+
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
+ if (!(val & (1 << (portnum * 4)))) {
+ QLC_DEV_SET_REF_CNT(val, portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
+ }
+
+ prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+ QLCDB(adapter, HW, "Device state = %u\n", prev_state);
+
+ switch (prev_state) {
+ case QLCNIC_DEV_COLD:
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
+ qlcnic_idc_debug_info(adapter, 0);
+ qlcnic_api_unlock(adapter);
+ return 1;
+
+ case QLCNIC_DEV_READY:
+ ret = qlcnic_check_idc_ver(adapter);
+ qlcnic_api_unlock(adapter);
+ return ret;
+
+ case QLCNIC_DEV_NEED_RESET:
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ QLC_DEV_SET_RST_RDY(val, portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+ break;
+
+ case QLCNIC_DEV_NEED_QUISCENT:
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ QLC_DEV_SET_QSCNT_RDY(val, portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+ break;
+
+ case QLCNIC_DEV_FAILED:
+ dev_err(&adapter->pdev->dev, "Device in failed state.\n");
+ qlcnic_api_unlock(adapter);
+ return -1;
+
+ case QLCNIC_DEV_INITIALIZING:
+ case QLCNIC_DEV_QUISCENT:
+ break;
+ }
+
+ qlcnic_api_unlock(adapter);
+
+ do {
+ msleep(1000);
+ prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+
+ if (prev_state == QLCNIC_DEV_QUISCENT)
+ continue;
+ } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
+
+ if (!dev_init_timeo) {
+ dev_err(&adapter->pdev->dev,
+ "Waiting for device to initialize timeout\n");
+ return -1;
+ }
+
+ if (qlcnic_api_lock(adapter))
+ return -1;
+
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ QLC_DEV_CLR_RST_QSCNT(val, portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+
+ ret = qlcnic_check_idc_ver(adapter);
+ qlcnic_api_unlock(adapter);
+
+ return ret;
+}
+
+static void
+qlcnic_fwinit_work(struct work_struct *work)
+{
+ struct qlcnic_adapter *adapter = container_of(work,
+ struct qlcnic_adapter, fw_work.work);
+ u32 dev_state = 0xf;
+ u32 val;
+
+ if (qlcnic_api_lock(adapter))
+ goto err_ret;
+
+ dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+ if (dev_state == QLCNIC_DEV_QUISCENT ||
+ dev_state == QLCNIC_DEV_NEED_QUISCENT) {
+ qlcnic_api_unlock(adapter);
+ qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
+ FW_POLL_DELAY * 2);
+ return;
+ }
+
+ if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
+ qlcnic_api_unlock(adapter);
+ goto wait_npar;
+ }
+
+ if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
+ dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
+ adapter->reset_ack_timeo);
+ goto skip_ack_check;
+ }
+
+ if (!qlcnic_check_drv_state(adapter)) {
+skip_ack_check:
+ dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+
+ if (dev_state == QLCNIC_DEV_NEED_RESET) {
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
+ QLCNIC_DEV_INITIALIZING);
+ set_bit(__QLCNIC_START_FW, &adapter->state);
+ QLCDB(adapter, DRV, "Restarting fw\n");
+ qlcnic_idc_debug_info(adapter, 0);
+ val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+ QLC_DEV_SET_RST_RDY(val, adapter->portnum);
+ QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+ }
+
+ qlcnic_api_unlock(adapter);
+
+ rtnl_lock();
+ if (adapter->ahw->fw_dump.enable &&
+ (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
+ QLCDB(adapter, DRV, "Take FW dump\n");
+ qlcnic_dump_fw(adapter);
+ adapter->flags |= QLCNIC_FW_HANG;
+ }
+ rtnl_unlock();
+
+ adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
+ if (!adapter->nic_ops->start_firmware(adapter)) {
+ qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
+ adapter->fw_wait_cnt = 0;
+ return;
+ }
+ goto err_ret;
+ }
+
+ qlcnic_api_unlock(adapter);
+
+wait_npar:
+ dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+ QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
+
+ switch (dev_state) {
+ case QLCNIC_DEV_READY:
+ if (!adapter->nic_ops->start_firmware(adapter)) {
+ qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
+ adapter->fw_wait_cnt = 0;
+ return;
+ }
+ case QLCNIC_DEV_FAILED:
+ break;
+ default:
+ qlcnic_schedule_work(adapter,
+ qlcnic_fwinit_work, FW_POLL_DELAY);
+ return;
+ }
+
+err_ret:
+ dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
+ "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
+ netif_device_attach(adapter->netdev);
+ qlcnic_clr_all_drv_state(adapter, 0);
+}
+
+static void
+qlcnic_detach_work(struct work_struct *work)
+{
+ struct qlcnic_adapter *adapter = container_of(work,
+ struct qlcnic_adapter, fw_work.work);
+ struct net_device *netdev = adapter->netdev;
+ u32 status;
+
+ netif_device_detach(netdev);
+
+ /* Dont grab rtnl lock during Quiscent mode */
+ if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+ } else
+ qlcnic_down(adapter, netdev);
+
+ status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
+
+ if (status & QLCNIC_RCODE_FATAL_ERROR) {
+ dev_err(&adapter->pdev->dev,
+ "Detaching the device: peg halt status1=0x%x\n",
+ status);
+
+ if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
+ dev_err(&adapter->pdev->dev,
+ "On board active cooling fan failed. "
+ "Device has been halted.\n");
+ dev_err(&adapter->pdev->dev,
+ "Replace the adapter.\n");
+ }
+
+ goto err_ret;
+ }
+
+ if (adapter->temp == QLCNIC_TEMP_PANIC) {
+ dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
+ adapter->temp);
+ goto err_ret;
+ }
+
+ /* Dont ack if this instance is the reset owner */
+ if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
+ if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to set driver state,"
+ "detaching the device.\n");
+ goto err_ret;
+ }
+ }
+
+ adapter->fw_wait_cnt = 0;
+
+ qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
+
+ return;
+
+err_ret:
+ netif_device_attach(netdev);
+ qlcnic_clr_all_drv_state(adapter, 1);
+}
+
+/*Transit NPAR state to NON Operational */
+static void
+qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
+{
+ u32 state;
+
+ state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ if (state == QLCNIC_DEV_NPAR_NON_OPER)
+ return;
+
+ if (qlcnic_api_lock(adapter))
+ return;
+ QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
+ qlcnic_api_unlock(adapter);
+}
+
+/*Transit to RESET state from READY state only */
+void
+qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
+{
+ u32 state;
+
+ adapter->need_fw_reset = 1;
+ if (qlcnic_api_lock(adapter))
+ return;
+
+ state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+
+ if (state == QLCNIC_DEV_READY) {
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
+ adapter->flags |= QLCNIC_FW_RESET_OWNER;
+ QLCDB(adapter, DRV, "NEED_RESET state set\n");
+ qlcnic_idc_debug_info(adapter, 0);
+ }
+
+ QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
+ qlcnic_api_unlock(adapter);
+}
+
+/* Transit to NPAR READY state from NPAR NOT READY state */
+static void
+qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
+{
+ if (qlcnic_api_lock(adapter))
+ return;
+
+ QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
+ QLCDB(adapter, DRV, "NPAR operational state set\n");
+
+ qlcnic_api_unlock(adapter);
+}
+
+static void
+qlcnic_schedule_work(struct qlcnic_adapter *adapter,
+ work_func_t func, int delay)
+{
+ if (test_bit(__QLCNIC_AER, &adapter->state))
+ return;
+
+ INIT_DELAYED_WORK(&adapter->fw_work, func);
+ queue_delayed_work(qlcnic_wq, &adapter->fw_work,
+ round_jiffies_relative(delay));
+}
+
+static void
+qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
+{
+ while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ msleep(10);
+
+ cancel_delayed_work_sync(&adapter->fw_work);
+}
+
+static void
+qlcnic_attach_work(struct work_struct *work)
+{
+ struct qlcnic_adapter *adapter = container_of(work,
+ struct qlcnic_adapter, fw_work.work);
+ struct net_device *netdev = adapter->netdev;
+ u32 npar_state;
+
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
+ npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
+ if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
+ qlcnic_clr_all_drv_state(adapter, 0);
+ else if (npar_state != QLCNIC_DEV_NPAR_OPER)
+ qlcnic_schedule_work(adapter, qlcnic_attach_work,
+ FW_POLL_DELAY);
+ else
+ goto attach;
+ QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
+ return;
+ }
+attach:
+ if (netif_running(netdev)) {
+ if (qlcnic_up(adapter, netdev))
+ goto done;
+
+ qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+ }
+
+done:
+ netif_device_attach(netdev);
+ adapter->fw_fail_cnt = 0;
+ adapter->flags &= ~QLCNIC_FW_HANG;
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+ if (!qlcnic_clr_drv_state(adapter))
+ qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
+ FW_POLL_DELAY);
+}
+
+static int
+qlcnic_check_health(struct qlcnic_adapter *adapter)
+{
+ u32 state = 0, heartbeat;
+ u32 peg_status;
+
+ if (qlcnic_check_temp(adapter))
+ goto detach;
+
+ if (adapter->need_fw_reset)
+ qlcnic_dev_request_reset(adapter);
+
+ state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
+ if (state == QLCNIC_DEV_NEED_RESET) {
+ qlcnic_set_npar_non_operational(adapter);
+ adapter->need_fw_reset = 1;
+ } else if (state == QLCNIC_DEV_NEED_QUISCENT)
+ goto detach;
+
+ heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
+ if (heartbeat != adapter->heartbeat) {
+ adapter->heartbeat = heartbeat;
+ adapter->fw_fail_cnt = 0;
+ if (adapter->need_fw_reset)
+ goto detach;
+
+ if (adapter->reset_context && auto_fw_reset) {
+ qlcnic_reset_hw_context(adapter);
+ adapter->netdev->trans_start = jiffies;
+ }
+
+ return 0;
+ }
+
+ if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
+ return 0;
+
+ adapter->flags |= QLCNIC_FW_HANG;
+
+ qlcnic_dev_request_reset(adapter);
+
+ if (auto_fw_reset)
+ clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
+
+ dev_err(&adapter->pdev->dev, "firmware hang detected\n");
+ dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
+ "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
+ "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
+ "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
+ "PEG_NET_4_PC: 0x%x\n",
+ QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1),
+ QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS2),
+ QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
+ QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
+ QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
+ QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
+ QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
+ peg_status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
+ if (LSW(MSB(peg_status)) == 0x67)
+ dev_err(&adapter->pdev->dev,
+ "Firmware aborted with error code 0x00006700. "
+ "Device is being reset.\n");
+detach:
+ adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
+ QLCNIC_DEV_NEED_RESET;
+
+ if (auto_fw_reset &&
+ !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
+
+ qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
+ QLCDB(adapter, DRV, "fw recovery scheduled.\n");
+ }
+
+ return 1;
+}
+
+static void
+qlcnic_fw_poll_work(struct work_struct *work)
+{
+ struct qlcnic_adapter *adapter = container_of(work,
+ struct qlcnic_adapter, fw_work.work);
+
+ if (test_bit(__QLCNIC_RESETTING, &adapter->state))
+ goto reschedule;
+
+
+ if (qlcnic_check_health(adapter))
+ return;
+
+ if (adapter->fhash.fnum)
+ qlcnic_prune_lb_filters(adapter);
+
+reschedule:
+ qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
+}
+
+static int qlcnic_is_first_func(struct pci_dev *pdev)
+{
+ struct pci_dev *oth_pdev;
+ int val = pdev->devfn;
+
+ while (val-- > 0) {
+ oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
+ (pdev->bus), pdev->bus->number,
+ PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
+ if (!oth_pdev)
+ continue;
+
+ if (oth_pdev->current_state != PCI_D3cold) {
+ pci_dev_put(oth_pdev);
+ return 0;
+ }
+ pci_dev_put(oth_pdev);
+ }
+ return 1;
+}
+
+static int qlcnic_attach_func(struct pci_dev *pdev)
+{
+ int err, first_func;
+ struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+ struct net_device *netdev = adapter->netdev;
+
+ pdev->error_state = pci_channel_io_normal;
+
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_set_master(pdev);
+ pci_restore_state(pdev);
+
+ first_func = qlcnic_is_first_func(pdev);
+
+ if (qlcnic_api_lock(adapter))
+ return -EINVAL;
+
+ if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
+ adapter->need_fw_reset = 1;
+ set_bit(__QLCNIC_START_FW, &adapter->state);
+ QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
+ QLCDB(adapter, DRV, "Restarting fw\n");
+ }
+ qlcnic_api_unlock(adapter);
+
+ err = adapter->nic_ops->start_firmware(adapter);
+ if (err)
+ return err;
+
+ qlcnic_clr_drv_state(adapter);
+ qlcnic_setup_intr(adapter);
+
+ if (netif_running(netdev)) {
+ err = qlcnic_attach(adapter);
+ if (err) {
+ qlcnic_clr_all_drv_state(adapter, 1);
+ clear_bit(__QLCNIC_AER, &adapter->state);
+ netif_device_attach(netdev);
+ return err;
+ }
+
+ err = qlcnic_up(adapter, netdev);
+ if (err)
+ goto done;
+
+ qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+ }
+ done:
+ netif_device_attach(netdev);
+ return err;
+}
+
+static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+ struct net_device *netdev = adapter->netdev;
+
+ if (state == pci_channel_io_perm_failure)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ if (state == pci_channel_io_normal)
+ return PCI_ERS_RESULT_RECOVERED;
+
+ set_bit(__QLCNIC_AER, &adapter->state);
+ netif_device_detach(netdev);
+
+ cancel_delayed_work_sync(&adapter->fw_work);
+
+ if (netif_running(netdev))
+ qlcnic_down(adapter, netdev);
+
+ qlcnic_detach(adapter);
+ qlcnic_teardown_intr(adapter);
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
+{
+ return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
+ PCI_ERS_RESULT_RECOVERED;
+}
+
+static void qlcnic_io_resume(struct pci_dev *pdev)
+{
+ struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+
+ pci_cleanup_aer_uncorrect_error_status(pdev);
+
+ if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
+ test_and_clear_bit(__QLCNIC_AER, &adapter->state))
+ qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
+ FW_POLL_DELAY);
+}
+
+static int
+qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
+{
+ int err;
+
+ err = qlcnic_can_start_firmware(adapter);
+ if (err)
+ return err;
+
+ err = qlcnic_check_npar_opertional(adapter);
+ if (err)
+ return err;
+
+ err = qlcnic_initialize_nic(adapter);
+ if (err)
+ return err;
+
+ qlcnic_check_options(adapter);
+
+ err = qlcnic_set_eswitch_port_config(adapter);
+ if (err)
+ return err;
+
+ adapter->need_fw_reset = 0;
+
+ return err;
+}
+
+static int
+qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
+{
+ return -EOPNOTSUPP;
+}
+
+static int
+qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
+{
+ return -EOPNOTSUPP;
+}
+
+static ssize_t
+qlcnic_store_bridged_mode(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ unsigned long new;
+ int ret = -EINVAL;
+
+ if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
+ goto err_out;
+
+ if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
+ goto err_out;
+
+ if (strict_strtoul(buf, 2, &new))
+ goto err_out;
+
+ if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
+ ret = len;
+
+err_out:
+ return ret;
+}
+
+static ssize_t
+qlcnic_show_bridged_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ int bridged_mode = 0;
+
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
+ bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
+
+ return sprintf(buf, "%d\n", bridged_mode);
+}
+
+static struct device_attribute dev_attr_bridged_mode = {
+ .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
+ .show = qlcnic_show_bridged_mode,
+ .store = qlcnic_store_bridged_mode,
+};
+
+static ssize_t
+qlcnic_store_diag_mode(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ unsigned long new;
+
+ if (strict_strtoul(buf, 2, &new))
+ return -EINVAL;
+
+ if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
+ adapter->flags ^= QLCNIC_DIAG_ENABLED;
+
+ return len;
+}
+
+static ssize_t
+qlcnic_show_diag_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n",
+ !!(adapter->flags & QLCNIC_DIAG_ENABLED));
+}
+
+static struct device_attribute dev_attr_diag_mode = {
+ .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
+ .show = qlcnic_show_diag_mode,
+ .store = qlcnic_store_diag_mode,
+};
+
+int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val)
+{
+ if (!use_msi_x && !use_msi) {
+ netdev_info(netdev, "no msix or msi support, hence no rss\n");
+ return -EINVAL;
+ }
+
+ if ((val > max_hw) || (val < 2) || !is_power_of_2(val)) {
+ netdev_info(netdev, "rss_ring valid range [2 - %x] in "
+ " powers of 2\n", max_hw);
+ return -EINVAL;
+ }
+ return 0;
+
+}
+
+int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err = 0;
+
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EBUSY;
+
+ netif_device_detach(netdev);
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+ qlcnic_detach(adapter);
+ qlcnic_teardown_intr(adapter);
+
+ if (qlcnic_enable_msix(adapter, data)) {
+ netdev_info(netdev, "failed setting max_rss; rss disabled\n");
+ qlcnic_enable_msi_legacy(adapter);
+ }
+
+ if (netif_running(netdev)) {
+ err = qlcnic_attach(adapter);
+ if (err)
+ goto done;
+ err = __qlcnic_up(adapter, netdev);
+ if (err)
+ goto done;
+ qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+ }
+ done:
+ netif_device_attach(netdev);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ return err;
+}
+
+static int
+qlcnic_validate_beacon(struct qlcnic_adapter *adapter, u16 beacon, u8 *state,
+ u8 *rate)
+{
+ *rate = LSB(beacon);
+ *state = MSB(beacon);
+
+ QLCDB(adapter, DRV, "rate %x state %x\n", *rate, *state);
+
+ if (!*state) {
+ *rate = __QLCNIC_MAX_LED_RATE;
+ return 0;
+ } else if (*state > __QLCNIC_MAX_LED_STATE)
+ return -EINVAL;
+
+ if ((!*rate) || (*rate > __QLCNIC_MAX_LED_RATE))
+ return -EINVAL;
+
+ return 0;
+}
+
+static ssize_t
+qlcnic_store_beacon(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ int max_sds_rings = adapter->max_sds_rings;
+ int dev_down = 0;
+ u16 beacon;
+ u8 b_state, b_rate;
+ int err;
+
+ if (len != sizeof(u16))
+ return QL_STATUS_INVALID_PARAM;
+
+ memcpy(&beacon, buf, sizeof(u16));
+ err = qlcnic_validate_beacon(adapter, beacon, &b_state, &b_rate);
+ if (err)
+ return err;
+
+ if (adapter->ahw->beacon_state == b_state)
+ return len;
+
+ if (!adapter->ahw->beacon_state)
+ if (test_and_set_bit(__QLCNIC_LED_ENABLE, &adapter->state))
+ return -EBUSY;
+
+ if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EIO;
+ err = qlcnic_diag_alloc_res(adapter->netdev, QLCNIC_LED_TEST);
+ if (err) {
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
+ return err;
+ }
+ dev_down = 1;
+ }
+
+ err = qlcnic_config_led(adapter, b_state, b_rate);
+
+ if (!err) {
+ adapter->ahw->beacon_state = b_state;
+ err = len;
+ }
+
+ if (dev_down) {
+ qlcnic_diag_free_res(adapter->netdev, max_sds_rings);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ }
+
+ if (!b_state)
+ clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
+
+ return err;
+}
+
+static ssize_t
+qlcnic_show_beacon(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", adapter->ahw->beacon_state);
+}
+
+static struct device_attribute dev_attr_beacon = {
+ .attr = {.name = "beacon", .mode = (S_IRUGO | S_IWUSR)},
+ .show = qlcnic_show_beacon,
+ .store = qlcnic_store_beacon,
+};
+
+static int
+qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
+ loff_t offset, size_t size)
+{
+ size_t crb_size = 4;
+
+ if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
+ return -EIO;
+
+ if (offset < QLCNIC_PCI_CRBSPACE) {
+ if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
+ QLCNIC_PCI_CAMQM_END))
+ crb_size = 8;
+ else
+ return -EINVAL;
+ }
+
+ if ((size != crb_size) || (offset & (crb_size-1)))
+ return -EINVAL;
+
+ return 0;
+}
+
+static ssize_t
+qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ u32 data;
+ u64 qmdata;
+ int ret;
+
+ ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
+ if (ret != 0)
+ return ret;
+
+ if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
+ qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
+ memcpy(buf, &qmdata, size);
+ } else {
+ data = QLCRD32(adapter, offset);
+ memcpy(buf, &data, size);
+ }
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ u32 data;
+ u64 qmdata;
+ int ret;
+
+ ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
+ if (ret != 0)
+ return ret;
+
+ if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
+ memcpy(&qmdata, buf, size);
+ qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
+ } else {
+ memcpy(&data, buf, size);
+ QLCWR32(adapter, offset, data);
+ }
+ return size;
+}
+
+static int
+qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
+ loff_t offset, size_t size)
+{
+ if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
+ return -EIO;
+
+ if ((size != 8) || (offset & 0x7))
+ return -EIO;
+
+ return 0;
+}
+
+static ssize_t
+qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ u64 data;
+ int ret;
+
+ ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
+ if (ret != 0)
+ return ret;
+
+ if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
+ return -EIO;
+
+ memcpy(buf, &data, size);
+
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ u64 data;
+ int ret;
+
+ ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
+ if (ret != 0)
+ return ret;
+
+ memcpy(&data, buf, size);
+
+ if (qlcnic_pci_mem_write_2M(adapter, offset, data))
+ return -EIO;
+
+ return size;
+}
+
+static struct bin_attribute bin_attr_crb = {
+ .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_read_crb,
+ .write = qlcnic_sysfs_write_crb,
+};
+
+static struct bin_attribute bin_attr_mem = {
+ .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_read_mem,
+ .write = qlcnic_sysfs_write_mem,
+};
+
+static int
+validate_pm_config(struct qlcnic_adapter *adapter,
+ struct qlcnic_pm_func_cfg *pm_cfg, int count)
+{
+
+ u8 src_pci_func, s_esw_id, d_esw_id;
+ u8 dest_pci_func;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ src_pci_func = pm_cfg[i].pci_func;
+ dest_pci_func = pm_cfg[i].dest_npar;
+ if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
+ || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
+ return QL_STATUS_INVALID_PARAM;
+
+ if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
+ return QL_STATUS_INVALID_PARAM;
+
+ if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
+ return QL_STATUS_INVALID_PARAM;
+
+ s_esw_id = adapter->npars[src_pci_func].phy_port;
+ d_esw_id = adapter->npars[dest_pci_func].phy_port;
+
+ if (s_esw_id != d_esw_id)
+ return QL_STATUS_INVALID_PARAM;
+
+ }
+ return 0;
+
+}
+
+static ssize_t
+qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_pm_func_cfg *pm_cfg;
+ u32 id, action, pci_func;
+ int count, rem, i, ret;
+
+ count = size / sizeof(struct qlcnic_pm_func_cfg);
+ rem = size % sizeof(struct qlcnic_pm_func_cfg);
+ if (rem)
+ return QL_STATUS_INVALID_PARAM;
+
+ pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
+
+ ret = validate_pm_config(adapter, pm_cfg, count);
+ if (ret)
+ return ret;
+ for (i = 0; i < count; i++) {
+ pci_func = pm_cfg[i].pci_func;
+ action = !!pm_cfg[i].action;
+ id = adapter->npars[pci_func].phy_port;
+ ret = qlcnic_config_port_mirroring(adapter, id,
+ action, pci_func);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < count; i++) {
+ pci_func = pm_cfg[i].pci_func;
+ id = adapter->npars[pci_func].phy_port;
+ adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
+ adapter->npars[pci_func].dest_npar = id;
+ }
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
+ int i;
+
+ if (size != sizeof(pm_cfg))
+ return QL_STATUS_INVALID_PARAM;
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
+ continue;
+ pm_cfg[i].action = adapter->npars[i].enable_pm;
+ pm_cfg[i].dest_npar = 0;
+ pm_cfg[i].pci_func = i;
+ }
+ memcpy(buf, &pm_cfg, size);
+
+ return size;
+}
+
+static int
+validate_esw_config(struct qlcnic_adapter *adapter,
+ struct qlcnic_esw_func_cfg *esw_cfg, int count)
+{
+ u32 op_mode;
+ u8 pci_func;
+ int i;
+
+ op_mode = readl(adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE);
+
+ for (i = 0; i < count; i++) {
+ pci_func = esw_cfg[i].pci_func;
+ if (pci_func >= QLCNIC_MAX_PCI_FUNC)
+ return QL_STATUS_INVALID_PARAM;
+
+ if (adapter->op_mode == QLCNIC_MGMT_FUNC)
+ if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
+ return QL_STATUS_INVALID_PARAM;
+
+ switch (esw_cfg[i].op_mode) {
+ case QLCNIC_PORT_DEFAULTS:
+ if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
+ QLCNIC_NON_PRIV_FUNC) {
+ if (esw_cfg[i].mac_anti_spoof != 0)
+ return QL_STATUS_INVALID_PARAM;
+ if (esw_cfg[i].mac_override != 1)
+ return QL_STATUS_INVALID_PARAM;
+ if (esw_cfg[i].promisc_mode != 1)
+ return QL_STATUS_INVALID_PARAM;
+ }
+ break;
+ case QLCNIC_ADD_VLAN:
+ if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
+ return QL_STATUS_INVALID_PARAM;
+ if (!esw_cfg[i].op_type)
+ return QL_STATUS_INVALID_PARAM;
+ break;
+ case QLCNIC_DEL_VLAN:
+ if (!esw_cfg[i].op_type)
+ return QL_STATUS_INVALID_PARAM;
+ break;
+ default:
+ return QL_STATUS_INVALID_PARAM;
+ }
+ }
+ return 0;
+}
+
+static ssize_t
+qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_esw_func_cfg *esw_cfg;
+ struct qlcnic_npar_info *npar;
+ int count, rem, i, ret;
+ u8 pci_func, op_mode = 0;
+
+ count = size / sizeof(struct qlcnic_esw_func_cfg);
+ rem = size % sizeof(struct qlcnic_esw_func_cfg);
+ if (rem)
+ return QL_STATUS_INVALID_PARAM;
+
+ esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
+ ret = validate_esw_config(adapter, esw_cfg, count);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < count; i++) {
+ if (adapter->op_mode == QLCNIC_MGMT_FUNC)
+ if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
+ return QL_STATUS_INVALID_PARAM;
+
+ if (adapter->ahw->pci_func != esw_cfg[i].pci_func)
+ continue;
+
+ op_mode = esw_cfg[i].op_mode;
+ qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
+ esw_cfg[i].op_mode = op_mode;
+ esw_cfg[i].pci_func = adapter->ahw->pci_func;
+
+ switch (esw_cfg[i].op_mode) {
+ case QLCNIC_PORT_DEFAULTS:
+ qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
+ break;
+ case QLCNIC_ADD_VLAN:
+ qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
+ break;
+ case QLCNIC_DEL_VLAN:
+ esw_cfg[i].vlan_id = 0;
+ qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
+ break;
+ }
+ }
+
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC)
+ goto out;
+
+ for (i = 0; i < count; i++) {
+ pci_func = esw_cfg[i].pci_func;
+ npar = &adapter->npars[pci_func];
+ switch (esw_cfg[i].op_mode) {
+ case QLCNIC_PORT_DEFAULTS:
+ npar->promisc_mode = esw_cfg[i].promisc_mode;
+ npar->mac_override = esw_cfg[i].mac_override;
+ npar->offload_flags = esw_cfg[i].offload_flags;
+ npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
+ npar->discard_tagged = esw_cfg[i].discard_tagged;
+ break;
+ case QLCNIC_ADD_VLAN:
+ npar->pvid = esw_cfg[i].vlan_id;
+ break;
+ case QLCNIC_DEL_VLAN:
+ npar->pvid = 0;
+ break;
+ }
+ }
+out:
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
+ u8 i;
+
+ if (size != sizeof(esw_cfg))
+ return QL_STATUS_INVALID_PARAM;
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+ if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
+ continue;
+ esw_cfg[i].pci_func = i;
+ if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
+ return QL_STATUS_INVALID_PARAM;
+ }
+ memcpy(buf, &esw_cfg, size);
+
+ return size;
+}
+
+static int
+validate_npar_config(struct qlcnic_adapter *adapter,
+ struct qlcnic_npar_func_cfg *np_cfg, int count)
+{
+ u8 pci_func, i;
+
+ for (i = 0; i < count; i++) {
+ pci_func = np_cfg[i].pci_func;
+ if (pci_func >= QLCNIC_MAX_PCI_FUNC)
+ return QL_STATUS_INVALID_PARAM;
+
+ if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
+ return QL_STATUS_INVALID_PARAM;
+
+ if (!IS_VALID_BW(np_cfg[i].min_bw) ||
+ !IS_VALID_BW(np_cfg[i].max_bw))
+ return QL_STATUS_INVALID_PARAM;
+ }
+ return 0;
+}
+
+static ssize_t
+qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_info nic_info;
+ struct qlcnic_npar_func_cfg *np_cfg;
+ int i, count, rem, ret;
+ u8 pci_func;
+
+ count = size / sizeof(struct qlcnic_npar_func_cfg);
+ rem = size % sizeof(struct qlcnic_npar_func_cfg);
+ if (rem)
+ return QL_STATUS_INVALID_PARAM;
+
+ np_cfg = (struct qlcnic_npar_func_cfg *) buf;
+ ret = validate_npar_config(adapter, np_cfg, count);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < count ; i++) {
+ pci_func = np_cfg[i].pci_func;
+ ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
+ if (ret)
+ return ret;
+ nic_info.pci_func = pci_func;
+ nic_info.min_tx_bw = np_cfg[i].min_bw;
+ nic_info.max_tx_bw = np_cfg[i].max_bw;
+ ret = qlcnic_set_nic_info(adapter, &nic_info);
+ if (ret)
+ return ret;
+ adapter->npars[i].min_bw = nic_info.min_tx_bw;
+ adapter->npars[i].max_bw = nic_info.max_tx_bw;
+ }
+
+ return size;
+
+}
+static ssize_t
+qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_info nic_info;
+ struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
+ int i, ret;
+
+ if (size != sizeof(np_cfg))
+ return QL_STATUS_INVALID_PARAM;
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
+ if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
+ continue;
+ ret = qlcnic_get_nic_info(adapter, &nic_info, i);
+ if (ret)
+ return ret;
+
+ np_cfg[i].pci_func = i;
+ np_cfg[i].op_mode = (u8)nic_info.op_mode;
+ np_cfg[i].port_num = nic_info.phys_port;
+ np_cfg[i].fw_capab = nic_info.capabilities;
+ np_cfg[i].min_bw = nic_info.min_tx_bw ;
+ np_cfg[i].max_bw = nic_info.max_tx_bw;
+ np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
+ np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
+ }
+ memcpy(buf, &np_cfg, size);
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_esw_statistics port_stats;
+ int ret;
+
+ if (size != sizeof(struct qlcnic_esw_statistics))
+ return QL_STATUS_INVALID_PARAM;
+
+ if (offset >= QLCNIC_MAX_PCI_FUNC)
+ return QL_STATUS_INVALID_PARAM;
+
+ memset(&port_stats, 0, size);
+ ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
+ &port_stats.rx);
+ if (ret)
+ return ret;
+
+ ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
+ &port_stats.tx);
+ if (ret)
+ return ret;
+
+ memcpy(buf, &port_stats, size);
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_esw_statistics esw_stats;
+ int ret;
+
+ if (size != sizeof(struct qlcnic_esw_statistics))
+ return QL_STATUS_INVALID_PARAM;
+
+ if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
+ return QL_STATUS_INVALID_PARAM;
+
+ memset(&esw_stats, 0, size);
+ ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
+ &esw_stats.rx);
+ if (ret)
+ return ret;
+
+ ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
+ &esw_stats.tx);
+ if (ret)
+ return ret;
+
+ memcpy(buf, &esw_stats, size);
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ int ret;
+
+ if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
+ return QL_STATUS_INVALID_PARAM;
+
+ ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
+ QLCNIC_QUERY_RX_COUNTER);
+ if (ret)
+ return ret;
+
+ ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
+ QLCNIC_QUERY_TX_COUNTER);
+ if (ret)
+ return ret;
+
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ int ret;
+
+ if (offset >= QLCNIC_MAX_PCI_FUNC)
+ return QL_STATUS_INVALID_PARAM;
+
+ ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
+ QLCNIC_QUERY_RX_COUNTER);
+ if (ret)
+ return ret;
+
+ ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
+ QLCNIC_QUERY_TX_COUNTER);
+ if (ret)
+ return ret;
+
+ return size;
+}
+
+static ssize_t
+qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+ struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
+ struct qlcnic_pci_info *pci_info;
+ int i, ret;
+
+ if (size != sizeof(pci_cfg))
+ return QL_STATUS_INVALID_PARAM;
+
+ pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
+ if (!pci_info)
+ return -ENOMEM;
+
+ ret = qlcnic_get_pci_info(adapter, pci_info);
+ if (ret) {
+ kfree(pci_info);
+ return ret;
+ }
+
+ for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
+ pci_cfg[i].pci_func = pci_info[i].id;
+ pci_cfg[i].func_type = pci_info[i].type;
+ pci_cfg[i].port_num = pci_info[i].default_port;
+ pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
+ pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
+ memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
+ }
+ memcpy(buf, &pci_cfg, size);
+ kfree(pci_info);
+ return size;
+}
+static struct bin_attribute bin_attr_npar_config = {
+ .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_read_npar_config,
+ .write = qlcnic_sysfs_write_npar_config,
+};
+
+static struct bin_attribute bin_attr_pci_config = {
+ .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_read_pci_config,
+ .write = NULL,
+};
+
+static struct bin_attribute bin_attr_port_stats = {
+ .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_get_port_stats,
+ .write = qlcnic_sysfs_clear_port_stats,
+};
+
+static struct bin_attribute bin_attr_esw_stats = {
+ .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_get_esw_stats,
+ .write = qlcnic_sysfs_clear_esw_stats,
+};
+
+static struct bin_attribute bin_attr_esw_config = {
+ .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_read_esw_config,
+ .write = qlcnic_sysfs_write_esw_config,
+};
+
+static struct bin_attribute bin_attr_pm_config = {
+ .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
+ .size = 0,
+ .read = qlcnic_sysfs_read_pm_config,
+ .write = qlcnic_sysfs_write_pm_config,
+};
+
+static void
+qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
+{
+ struct device *dev = &adapter->pdev->dev;
+
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
+ if (device_create_file(dev, &dev_attr_bridged_mode))
+ dev_warn(dev,
+ "failed to create bridged_mode sysfs entry\n");
+}
+
+static void
+qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
+{
+ struct device *dev = &adapter->pdev->dev;
+
+ if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
+ device_remove_file(dev, &dev_attr_bridged_mode);
+}
+
+static void
+qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
+{
+ struct device *dev = &adapter->pdev->dev;
+
+ if (device_create_bin_file(dev, &bin_attr_port_stats))
+ dev_info(dev, "failed to create port stats sysfs entry");
+
+ if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
+ return;
+ if (device_create_file(dev, &dev_attr_diag_mode))
+ dev_info(dev, "failed to create diag_mode sysfs entry\n");
+ if (device_create_file(dev, &dev_attr_beacon))
+ dev_info(dev, "failed to create beacon sysfs entry");
+ if (device_create_bin_file(dev, &bin_attr_crb))
+ dev_info(dev, "failed to create crb sysfs entry\n");
+ if (device_create_bin_file(dev, &bin_attr_mem))
+ dev_info(dev, "failed to create mem sysfs entry\n");
+ if (device_create_bin_file(dev, &bin_attr_pci_config))
+ dev_info(dev, "failed to create pci config sysfs entry");
+ if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
+ return;
+ if (device_create_bin_file(dev, &bin_attr_esw_config))
+ dev_info(dev, "failed to create esw config sysfs entry");
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC)
+ return;
+ if (device_create_bin_file(dev, &bin_attr_npar_config))
+ dev_info(dev, "failed to create npar config sysfs entry");
+ if (device_create_bin_file(dev, &bin_attr_pm_config))
+ dev_info(dev, "failed to create pm config sysfs entry");
+ if (device_create_bin_file(dev, &bin_attr_esw_stats))
+ dev_info(dev, "failed to create eswitch stats sysfs entry");
+}
+
+static void
+qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
+{
+ struct device *dev = &adapter->pdev->dev;
+
+ device_remove_bin_file(dev, &bin_attr_port_stats);
+
+ if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
+ return;
+ device_remove_file(dev, &dev_attr_diag_mode);
+ device_remove_file(dev, &dev_attr_beacon);
+ device_remove_bin_file(dev, &bin_attr_crb);
+ device_remove_bin_file(dev, &bin_attr_mem);
+ device_remove_bin_file(dev, &bin_attr_pci_config);
+ if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
+ return;
+ device_remove_bin_file(dev, &bin_attr_esw_config);
+ if (adapter->op_mode != QLCNIC_MGMT_FUNC)
+ return;
+ device_remove_bin_file(dev, &bin_attr_npar_config);
+ device_remove_bin_file(dev, &bin_attr_pm_config);
+ device_remove_bin_file(dev, &bin_attr_esw_stats);
+}
+
+#ifdef CONFIG_INET
+
+#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
+
+static void
+qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
+ struct net_device *dev, unsigned long event)
+{
+ struct in_device *indev;
+
+ indev = in_dev_get(dev);
+ if (!indev)
+ return;
+
+ for_ifa(indev) {
+ switch (event) {
+ case NETDEV_UP:
+ qlcnic_config_ipaddr(adapter,
+ ifa->ifa_address, QLCNIC_IP_UP);
+ break;
+ case NETDEV_DOWN:
+ qlcnic_config_ipaddr(adapter,
+ ifa->ifa_address, QLCNIC_IP_DOWN);
+ break;
+ default:
+ break;
+ }
+ } endfor_ifa(indev);
+
+ in_dev_put(indev);
+}
+
+static void
+qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
+{
+ struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ struct net_device *dev;
+ u16 vid;
+
+ qlcnic_config_indev_addr(adapter, netdev, event);
+
+ for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
+ dev = __vlan_find_dev_deep(netdev, vid);
+ if (!dev)
+ continue;
+ qlcnic_config_indev_addr(adapter, dev, event);
+ }
+}
+
+static int qlcnic_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct qlcnic_adapter *adapter;
+ struct net_device *dev = (struct net_device *)ptr;
+
+recheck:
+ if (dev == NULL)
+ goto done;
+
+ if (dev->priv_flags & IFF_802_1Q_VLAN) {
+ dev = vlan_dev_real_dev(dev);
+ goto recheck;
+ }
+
+ if (!is_qlcnic_netdev(dev))
+ goto done;
+
+ adapter = netdev_priv(dev);
+
+ if (!adapter)
+ goto done;
+
+ if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
+ goto done;
+
+ qlcnic_config_indev_addr(adapter, dev, event);
+done:
+ return NOTIFY_DONE;
+}
+
+static int
+qlcnic_inetaddr_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct qlcnic_adapter *adapter;
+ struct net_device *dev;
+
+ struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
+
+ dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
+
+recheck:
+ if (dev == NULL)
+ goto done;
+
+ if (dev->priv_flags & IFF_802_1Q_VLAN) {
+ dev = vlan_dev_real_dev(dev);
+ goto recheck;
+ }
+
+ if (!is_qlcnic_netdev(dev))
+ goto done;
+
+ adapter = netdev_priv(dev);
+
+ if (!adapter)
+ goto done;
+
+ if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
+ goto done;
+
+ switch (event) {
+ case NETDEV_UP:
+ qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
+ break;
+ case NETDEV_DOWN:
+ qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
+ break;
+ default:
+ break;
+ }
+
+done:
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block qlcnic_netdev_cb = {
+ .notifier_call = qlcnic_netdev_event,
+};
+
+static struct notifier_block qlcnic_inetaddr_cb = {
+ .notifier_call = qlcnic_inetaddr_event,
+};
+#else
+static void
+qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
+{ }
+#endif
+static struct pci_error_handlers qlcnic_err_handler = {
+ .error_detected = qlcnic_io_error_detected,
+ .slot_reset = qlcnic_io_slot_reset,
+ .resume = qlcnic_io_resume,
+};
+
+static struct pci_driver qlcnic_driver = {
+ .name = qlcnic_driver_name,
+ .id_table = qlcnic_pci_tbl,
+ .probe = qlcnic_probe,
+ .remove = __devexit_p(qlcnic_remove),
+#ifdef CONFIG_PM
+ .suspend = qlcnic_suspend,
+ .resume = qlcnic_resume,
+#endif
+ .shutdown = qlcnic_shutdown,
+ .err_handler = &qlcnic_err_handler
+
+};
+
+static int __init qlcnic_init_module(void)
+{
+ int ret;
+
+ printk(KERN_INFO "%s\n", qlcnic_driver_string);
+
+ qlcnic_wq = create_singlethread_workqueue("qlcnic");
+ if (qlcnic_wq == NULL) {
+ printk(KERN_ERR "qlcnic: cannot create workqueue\n");
+ return -ENOMEM;
+ }
+
+#ifdef CONFIG_INET
+ register_netdevice_notifier(&qlcnic_netdev_cb);
+ register_inetaddr_notifier(&qlcnic_inetaddr_cb);
+#endif
+
+ ret = pci_register_driver(&qlcnic_driver);
+ if (ret) {
+#ifdef CONFIG_INET
+ unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
+ unregister_netdevice_notifier(&qlcnic_netdev_cb);
+#endif
+ destroy_workqueue(qlcnic_wq);
+ }
+
+ return ret;
+}
+
+module_init(qlcnic_init_module);
+
+static void __exit qlcnic_exit_module(void)
+{
+
+ pci_unregister_driver(&qlcnic_driver);
+
+#ifdef CONFIG_INET
+ unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
+ unregister_netdevice_notifier(&qlcnic_netdev_cb);
+#endif
+ destroy_workqueue(qlcnic_wq);
+}
+
+module_exit(qlcnic_exit_module);