qlcnic: add eswitch statistics support

Adding eswitch statistics support. User can get
whole eswitch stats or stats of func belong to that eswitch.

Added:
o command to get statistics of eswitch and function.
o sysfs support to export eswitch and func statatistics.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 131 insertions, 1 deletions

diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 06ffd7637f87..a30bde52d40b 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -3378,6 +3378,115 @@ qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
 }
 
 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)
 {
@@ -3426,6 +3535,20 @@ static struct bin_attribute bin_attr_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,
@@ -3465,6 +3588,9 @@ 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))
@@ -3484,7 +3610,8 @@ qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
                 dev_info(dev, "failed to create esw 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
@@ -3492,6 +3619,8 @@ 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);
@@ -3504,6 +3633,7 @@ qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
         device_remove_bin_file(dev, &bin_attr_npar_config);
         device_remove_bin_file(dev, &bin_attr_esw_config);
         device_remove_bin_file(dev, &bin_attr_pm_config);
+        device_remove_bin_file(dev, &bin_attr_esw_stats);
 }
 
 #ifdef CONFIG_INET