[TG3]: Add memory test

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

1 files changed, 60 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 4589f8f90119..49cb7b3e2835 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7520,6 +7520,62 @@ out:
         return -EIO;
 }
 
+static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
+{
+        static u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
+        int i;
+        u32 j;
+
+        for (i = 0; i < sizeof(test_pattern)/sizeof(u32); i++) {
+                for (j = 0; j < len; j += 4) {
+                        u32 val;
+
+                        tg3_write_mem(tp, offset + j, test_pattern[i]);
+                        tg3_read_mem(tp, offset + j, &val);
+                        if (val != test_pattern[i])
+                                return -EIO;
+                }
+        }
+        return 0;
+}
+
+static int tg3_test_memory(struct tg3 *tp)
+{
+        static struct mem_entry {
+                u32 offset;
+                u32 len;
+        } mem_tbl_570x[] = {
+                { 0x00000000, 0x01000},
+                { 0x00002000, 0x1c000},
+                { 0xffffffff, 0x00000}
+        }, mem_tbl_5705[] = {
+                { 0x00000100, 0x0000c},
+                { 0x00000200, 0x00008},
+                { 0x00000b50, 0x00400},
+                { 0x00004000, 0x00800},
+                { 0x00006000, 0x01000},
+                { 0x00008000, 0x02000},
+                { 0x00010000, 0x0e000},
+                { 0xffffffff, 0x00000}
+        };
+        struct mem_entry *mem_tbl;
+        int err = 0;
+        int i;
+
+        if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
+                mem_tbl = mem_tbl_5705;
+        else
+                mem_tbl = mem_tbl_570x;
+
+        for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
+                if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset,
+                    mem_tbl[i].len)) != 0)
+                        break;
+        }
+        
+        return err;
+}
+
 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
                           u64 *data)
 {
@@ -7553,6 +7609,10 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
                         etest->flags |= ETH_TEST_FL_FAILED;
                         data[2] = 1;
                 }
+                if (tg3_test_memory(tp) != 0) {
+                        etest->flags |= ETH_TEST_FL_FAILED;
+                        data[3] = 1;
+                }
 
                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
                 if (netif_running(dev)) {