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netxen: add sysfs entries for diag tools
Add sysfs entries to enable register and memory access for diagnostic tools. Signed-off-by: Narender Kumar <narender.kumar@qlogic.com> Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1089,6 +1089,7 @@ typedef struct {
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#define NETXEN_NIC_MSIX_ENABLED 0x04
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#define NETXEN_NIC_LRO_ENABLED 0x08
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#define NETXEN_NIC_BRIDGE_ENABLED 0X10
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#define NETXEN_NIC_DIAG_ENABLED 0x20
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#define NETXEN_IS_MSI_FAMILY(adapter) \
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((adapter)->flags & (NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED))
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@ -73,6 +73,8 @@ static void netxen_nic_poll_controller(struct net_device *netdev);
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static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
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static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
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static void netxen_create_diag_entries(struct netxen_adapter *adapter);
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static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
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static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
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static int netxen_can_start_firmware(struct netxen_adapter *adapter);
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@ -1307,6 +1309,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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break;
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}
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netxen_create_diag_entries(adapter);
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return 0;
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err_out_disable_msi:
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@ -1359,6 +1363,8 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
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netxen_teardown_intr(adapter);
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netxen_remove_diag_entries(adapter);
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netxen_cleanup_pci_map(adapter);
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netxen_release_firmware(adapter);
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@ -2331,6 +2337,160 @@ static struct device_attribute dev_attr_bridged_mode = {
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.store = netxen_store_bridged_mode,
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};
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static ssize_t
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netxen_store_diag_mode(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t len)
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{
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struct netxen_adapter *adapter = dev_get_drvdata(dev);
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unsigned long new;
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if (strict_strtoul(buf, 2, &new))
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return -EINVAL;
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if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
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adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
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return len;
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}
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static ssize_t
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netxen_show_diag_mode(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct netxen_adapter *adapter = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n",
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!!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
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}
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static struct device_attribute dev_attr_diag_mode = {
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.attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
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.show = netxen_show_diag_mode,
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.store = netxen_store_diag_mode,
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};
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static int
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netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
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loff_t offset, size_t size)
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{
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if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
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return -EIO;
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if ((size != 4) || (offset & 0x3))
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return -EINVAL;
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if (offset < NETXEN_PCI_CRBSPACE)
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return -EINVAL;
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return 0;
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}
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static ssize_t
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netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
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char *buf, loff_t offset, size_t size)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct netxen_adapter *adapter = dev_get_drvdata(dev);
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u32 data;
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int ret;
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ret = netxen_sysfs_validate_crb(adapter, offset, size);
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if (ret != 0)
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return ret;
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data = NXRD32(adapter, offset);
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memcpy(buf, &data, size);
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return size;
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}
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static ssize_t
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netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
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char *buf, loff_t offset, size_t size)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct netxen_adapter *adapter = dev_get_drvdata(dev);
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u32 data;
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int ret;
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ret = netxen_sysfs_validate_crb(adapter, offset, size);
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if (ret != 0)
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return ret;
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memcpy(&data, buf, size);
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NXWR32(adapter, offset, data);
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return size;
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}
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static int
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netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
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loff_t offset, size_t size)
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{
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if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
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return -EIO;
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if ((size != 8) || (offset & 0x7))
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return -EIO;
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return 0;
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}
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static ssize_t
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netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
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char *buf, loff_t offset, size_t size)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct netxen_adapter *adapter = dev_get_drvdata(dev);
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u64 data;
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int ret;
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ret = netxen_sysfs_validate_mem(adapter, offset, size);
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if (ret != 0)
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return ret;
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if (adapter->pci_mem_read(adapter, offset, &data))
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return -EIO;
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memcpy(buf, &data, size);
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return size;
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}
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ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t offset, size_t size)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct netxen_adapter *adapter = dev_get_drvdata(dev);
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u64 data;
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int ret;
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ret = netxen_sysfs_validate_mem(adapter, offset, size);
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if (ret != 0)
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return ret;
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memcpy(&data, buf, size);
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if (adapter->pci_mem_write(adapter, offset, data))
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return -EIO;
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return size;
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}
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static struct bin_attribute bin_attr_crb = {
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.attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
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.size = 0,
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.read = netxen_sysfs_read_crb,
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.write = netxen_sysfs_write_crb,
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};
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static struct bin_attribute bin_attr_mem = {
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.attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
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.size = 0,
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.read = netxen_sysfs_read_mem,
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.write = netxen_sysfs_write_mem,
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};
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static void
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netxen_create_sysfs_entries(struct netxen_adapter *adapter)
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{
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@ -2356,6 +2516,33 @@ netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
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device_remove_file(dev, &dev_attr_bridged_mode);
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}
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static void
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netxen_create_diag_entries(struct netxen_adapter *adapter)
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{
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struct pci_dev *pdev = adapter->pdev;
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struct device *dev;
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dev = &pdev->dev;
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if (device_create_file(dev, &dev_attr_diag_mode))
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dev_info(dev, "failed to create diag_mode sysfs entry\n");
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if (device_create_bin_file(dev, &bin_attr_crb))
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dev_info(dev, "failed to create crb sysfs entry\n");
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if (device_create_bin_file(dev, &bin_attr_mem))
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dev_info(dev, "failed to create mem sysfs entry\n");
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}
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static void
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netxen_remove_diag_entries(struct netxen_adapter *adapter)
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{
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struct pci_dev *pdev = adapter->pdev;
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struct device *dev = &pdev->dev;
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device_remove_file(dev, &dev_attr_diag_mode);
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device_remove_bin_file(dev, &bin_attr_crb);
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device_remove_bin_file(dev, &bin_attr_mem);
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}
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#ifdef CONFIG_INET
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#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
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