qlge: Add ethtool self-test.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/qlge/qlge_ethtool.c b/drivers/net/qlge/qlge_ethtool.c
index 62c4af0..058fa0a 100644
--- a/drivers/net/qlge/qlge_ethtool.c
+++ b/drivers/net/qlge/qlge_ethtool.c
@@ -36,6 +36,11 @@
#include "qlge.h"
+static const char ql_gstrings_test[][ETH_GSTRING_LEN] = {
+ "Loopback test (offline)"
+};
+#define QLGE_TEST_LEN (sizeof(ql_gstrings_test) / ETH_GSTRING_LEN)
+
static int ql_update_ring_coalescing(struct ql_adapter *qdev)
{
int i, status = 0;
@@ -251,6 +256,8 @@
static int ql_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
+ case ETH_SS_TEST:
+ return QLGE_TEST_LEN;
case ETH_SS_STATS:
return ARRAY_SIZE(ql_stats_str_arr);
default:
@@ -429,6 +436,110 @@
return 0;
}
+static int ql_start_loopback(struct ql_adapter *qdev)
+{
+ if (netif_carrier_ok(qdev->ndev)) {
+ set_bit(QL_LB_LINK_UP, &qdev->flags);
+ netif_carrier_off(qdev->ndev);
+ } else
+ clear_bit(QL_LB_LINK_UP, &qdev->flags);
+ qdev->link_config |= CFG_LOOPBACK_PCS;
+ return ql_mb_set_port_cfg(qdev);
+}
+
+static void ql_stop_loopback(struct ql_adapter *qdev)
+{
+ qdev->link_config &= ~CFG_LOOPBACK_PCS;
+ ql_mb_set_port_cfg(qdev);
+ if (test_bit(QL_LB_LINK_UP, &qdev->flags)) {
+ netif_carrier_on(qdev->ndev);
+ clear_bit(QL_LB_LINK_UP, &qdev->flags);
+ }
+}
+
+static void ql_create_lb_frame(struct sk_buff *skb,
+ unsigned int frame_size)
+{
+ memset(skb->data, 0xFF, frame_size);
+ frame_size &= ~1;
+ memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
+ memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
+ memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
+}
+
+void ql_check_lb_frame(struct ql_adapter *qdev,
+ struct sk_buff *skb)
+{
+ unsigned int frame_size = skb->len;
+
+ if ((*(skb->data + 3) == 0xFF) &&
+ (*(skb->data + frame_size / 2 + 10) == 0xBE) &&
+ (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
+ atomic_dec(&qdev->lb_count);
+ return;
+ }
+}
+
+static int ql_run_loopback_test(struct ql_adapter *qdev)
+{
+ int i;
+ netdev_tx_t rc;
+ struct sk_buff *skb;
+ unsigned int size = SMALL_BUF_MAP_SIZE;
+
+ for (i = 0; i < 64; i++) {
+ skb = netdev_alloc_skb(qdev->ndev, size);
+ if (!skb)
+ return -ENOMEM;
+
+ skb->queue_mapping = 0;
+ skb_put(skb, size);
+ ql_create_lb_frame(skb, size);
+ rc = ql_lb_send(skb, qdev->ndev);
+ if (rc != NETDEV_TX_OK)
+ return -EPIPE;
+ atomic_inc(&qdev->lb_count);
+ }
+
+ ql_clean_lb_rx_ring(&qdev->rx_ring[0], 128);
+ return atomic_read(&qdev->lb_count) ? -EIO : 0;
+}
+
+static int ql_loopback_test(struct ql_adapter *qdev, u64 *data)
+{
+ *data = ql_start_loopback(qdev);
+ if (*data)
+ goto out;
+ *data = ql_run_loopback_test(qdev);
+out:
+ ql_stop_loopback(qdev);
+ return *data;
+}
+
+static void ql_self_test(struct net_device *ndev,
+ struct ethtool_test *eth_test, u64 *data)
+{
+ struct ql_adapter *qdev = netdev_priv(ndev);
+
+ if (netif_running(ndev)) {
+ set_bit(QL_SELFTEST, &qdev->flags);
+ if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+ /* Offline tests */
+ if (ql_loopback_test(qdev, &data[0]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ } else {
+ /* Online tests */
+ data[0] = 0;
+ }
+ clear_bit(QL_SELFTEST, &qdev->flags);
+ } else {
+ QPRINTK(qdev, DRV, ERR,
+ "%s: is down, Loopback test will fail.\n", ndev->name);
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+ }
+}
+
static int ql_get_regs_len(struct net_device *ndev)
{
return sizeof(struct ql_reg_dump);
@@ -575,6 +686,7 @@
.set_msglevel = ql_set_msglevel,
.get_link = ethtool_op_get_link,
.phys_id = ql_phys_id,
+ .self_test = ql_self_test,
.get_pauseparam = ql_get_pauseparam,
.set_pauseparam = ql_set_pauseparam,
.get_rx_csum = ql_get_rx_csum,