[TG3]: Add nvram test

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 088ed9f634e5..ab2fa213b301 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7239,9 +7239,59 @@ static void tg3_get_ethtool_stats (struct net_device *dev,
         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
 }
 
+#define NVRAM_TEST_SIZE 0x100
+
+static int tg3_test_nvram(struct tg3 *tp)
+{
+        u32 *buf, csum;
+        int i, j, err = 0;
+
+        buf = kmalloc(NVRAM_TEST_SIZE, GFP_KERNEL);
+        if (buf == NULL)
+                return -ENOMEM;
+
+        for (i = 0, j = 0; i < NVRAM_TEST_SIZE; i += 4, j++) {
+                u32 val;
+
+                if ((err = tg3_nvram_read(tp, i, &val)) != 0)
+                        break;
+                buf[j] = cpu_to_le32(val);
+        }
+        if (i < NVRAM_TEST_SIZE)
+                goto out;
+
+        err = -EIO;
+        if (cpu_to_be32(buf[0]) != TG3_EEPROM_MAGIC)
+                goto out;
+
+        /* Bootstrap checksum at offset 0x10 */
+        csum = calc_crc((unsigned char *) buf, 0x10);
+        if(csum != cpu_to_le32(buf[0x10/4]))
+                goto out;
+
+        /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
+        csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
+        if (csum != cpu_to_le32(buf[0xfc/4]))
+                 goto out;
+
+        err = 0;
+
+out:
+        kfree(buf);
+        return err;
+}
+
 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
                           u64 *data)
 {
+        struct tg3 *tp = netdev_priv(dev);
+
+        memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
+
+        if (tg3_test_nvram(tp) != 0) {
+                etest->flags |= ETH_TEST_FL_FAILED;
+                data[0] = 1;
+        }
 }
 
 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)