summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorNarender Kumar <narender.kumar@qlogic.com>2009-10-16 15:50:11 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-17 23:44:46 -0700
commitcaa2dd53bc2f9c44938f2f261ebe15e2f26cc51e (patch)
tree6fade4ac91dcd549acfec39891dc7bc57f0a6341 /drivers
parent7cecdca133ea9791adce21819b9e9eed79045f23 (diff)
netxen: sysfs control for auto firmware recovery
Firmware hang detection and recovery (reset) need to be disabled for diagnostic tools, which can run some disruptive tests. This adds a driver level control to turn off this feature by diag 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/netxen/netxen_nic.h3
-rw-r--r--drivers/net/netxen/netxen_nic_main.c50
2 files changed, 52 insertions, 1 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index db28f8a6f8af..fa7511e2f2e9 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -1044,6 +1044,9 @@ typedef struct {
#define LINKEVENT_LINKSPEED_MBPS 0
#define LINKEVENT_LINKSPEED_ENCODED 1
+#define AUTO_FW_RESET_ENABLED 0xEF10AF12
+#define AUTO_FW_RESET_DISABLED 0xDCBAAF12
+
/* firmware response header:
* 63:58 - message type
* 57:56 - owner
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 30d9afe7366a..1071f090a124 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -52,6 +52,8 @@ static int use_msi = 1;
static int use_msi_x = 1;
+static unsigned long auto_fw_reset = AUTO_FW_RESET_ENABLED;
+
/* Local functions to NetXen NIC driver */
static int __devinit netxen_nic_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
@@ -2264,7 +2266,8 @@ netxen_check_health(struct netxen_adapter *adapter)
dev_info(&netdev->dev, "firmware hang detected\n");
detach:
- if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
+ if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
+ !test_and_set_bit(__NX_RESETTING, &adapter->state))
netxen_schedule_work(adapter, netxen_detach_work, 0);
return 1;
}
@@ -2496,6 +2499,41 @@ static struct bin_attribute bin_attr_mem = {
.write = netxen_sysfs_write_mem,
};
+static ssize_t
+netxen_store_auto_fw_reset(struct module_attribute *mattr,
+ struct module *mod, const char *buf, size_t count)
+
+{
+ unsigned long new;
+
+ if (strict_strtoul(buf, 16, &new))
+ return -EINVAL;
+
+ if ((new == AUTO_FW_RESET_ENABLED) || (new == AUTO_FW_RESET_DISABLED)) {
+ auto_fw_reset = new;
+ return count;
+ }
+
+ return -EINVAL;
+}
+
+static ssize_t
+netxen_show_auto_fw_reset(struct module_attribute *mattr,
+ struct module *mod, char *buf)
+
+{
+ if (auto_fw_reset == AUTO_FW_RESET_ENABLED)
+ return sprintf(buf, "enabled\n");
+ else
+ return sprintf(buf, "disabled\n");
+}
+
+static struct module_attribute mod_attr_fw_reset = {
+ .attr = {.name = "auto_fw_reset", .mode = (S_IRUGO | S_IWUSR)},
+ .show = netxen_show_auto_fw_reset,
+ .store = netxen_store_auto_fw_reset,
+};
+
static void
netxen_create_sysfs_entries(struct netxen_adapter *adapter)
{
@@ -2700,6 +2738,8 @@ static struct pci_driver netxen_driver = {
static int __init netxen_init_module(void)
{
+ struct module *mod = THIS_MODULE;
+
printk(KERN_INFO "%s\n", netxen_nic_driver_string);
#ifdef CONFIG_INET
@@ -2707,6 +2747,10 @@ static int __init netxen_init_module(void)
register_inetaddr_notifier(&netxen_inetaddr_cb);
#endif
+ if (sysfs_create_file(&mod->mkobj.kobj, &mod_attr_fw_reset.attr))
+ printk(KERN_ERR "%s: Failed to create auto_fw_reset "
+ "sysfs entry.", netxen_nic_driver_name);
+
return pci_register_driver(&netxen_driver);
}
@@ -2714,6 +2758,10 @@ module_init(netxen_init_module);
static void __exit netxen_exit_module(void)
{
+ struct module *mod = THIS_MODULE;
+
+ sysfs_remove_file(&mod->mkobj.kobj, &mod_attr_fw_reset.attr);
+
pci_unregister_driver(&netxen_driver);
#ifdef CONFIG_INET