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path: root/src/drivers/net/r8168.c
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Diffstat (limited to 'src/drivers/net/r8168.c')
-rw-r--r--src/drivers/net/r8168.c39
1 files changed, 31 insertions, 8 deletions
diff --git a/src/drivers/net/r8168.c b/src/drivers/net/r8168.c
index 4c17017440..288888d4a8 100644
--- a/src/drivers/net/r8168.c
+++ b/src/drivers/net/r8168.c
@@ -45,6 +45,8 @@
#define CFG_9346_LOCK 0x00
#define CFG_9346_UNLOCK 0xc0
+#define DEVICE_INDEX_BYTE 12
+#define MAX_DEVICE_SUPPORT 10
/**
* search: Find first instance of string in a given region
* @param p string to find
@@ -91,13 +93,25 @@ static u8 get_hex_digit(const u8 c)
#define MACLEN 17
-static enum cb_err fetch_mac_string_vpd(u8 *macstrbuf)
+static enum cb_err fetch_mac_string_vpd(u8 *macstrbuf, const u8 device_index)
{
struct region_device rdev;
void *search_address;
size_t search_length;
size_t offset;
- char key[] = "ethernet_mac";
+ char key[] = "ethernet_mac "; /* Leave a space at tail to stuff an index */
+
+ /*
+ * The device_index 0 is treated as an special case matching to
+ * "ethernet_mac" with single NIC on DUT. When there are mulitple
+ * NICs on DUT, they are mapping to "ethernet_macN", where
+ * N is [0-9].
+ */
+ if (device_index == 0)
+ key[DEVICE_INDEX_BYTE] = '\0';
+ else
+ /* Translate index number from integer to ascii */
+ key[DEVICE_INDEX_BYTE] = (device_index - 1) + '0';
if (fmap_locate_area_as_rdev("RO_VPD", &rdev)) {
printk(BIOS_ERR, "Error: Couldn't find RO_VPD region.");
@@ -112,6 +126,7 @@ static enum cb_err fetch_mac_string_vpd(u8 *macstrbuf)
search_length = region_device_sz(&rdev);
offset = search(key, search_address, strlen(key),
search_length);
+
if (offset == search_length) {
printk(BIOS_ERR,
"Error: Could not locate '%s' in VPD\n", key);
@@ -119,14 +134,13 @@ static enum cb_err fetch_mac_string_vpd(u8 *macstrbuf)
}
printk(BIOS_DEBUG, "Located '%s' in VPD\n", key);
- offset += sizeof(key); /* move to next character */
+ offset += strlen(key) + 1; /* move to next character */
if (offset + MACLEN > search_length) {
printk(BIOS_ERR, "Search result too small!\n");
return CB_ERR;
}
memcpy(macstrbuf, search_address + offset, MACLEN);
-
return CB_SUCCESS;
}
@@ -172,16 +186,25 @@ static void program_mac_address(struct device *dev, u16 io_base)
int i = 0;
/* Default MAC Address of 00:E0:4C:00:C0:B0 */
u8 mac[6] = { 0x00, 0xe0, 0x4c, 0x00, 0xc0, 0xb0 };
+ struct drivers_net_config *config = dev->chip_info;
/* check the VPD for the mac address */
if (IS_ENABLED(CONFIG_RT8168_GET_MAC_FROM_VPD)) {
- if (fetch_mac_string_vpd(macstrbuf) != CB_SUCCESS)
- printk(BIOS_ERR, "r8168: mac address not found in VPD,"
- " using default 00:e0:4c:00:c0:b0\n");
+ /* Current implementation is up to 10 NIC cards */
+ if (config && config->device_index <= MAX_DEVICE_SUPPORT) {
+ if (fetch_mac_string_vpd(macstrbuf, config->device_index)
+ != CB_SUCCESS)
+ printk(BIOS_ERR, "r8168: mac address not found in VPD,"
+ " using default 00:e0:4c:00:c0:b0\n");
+ } else {
+ printk(BIOS_ERR, "r8168: the maximum device_index should be"
+ " less then %d\n. Using default 00:e0:4c:00:c0:b0\n",
+ MAX_DEVICE_SUPPORT);
+ }
} else {
if (fetch_mac_string_cbfs(macstrbuf) != CB_SUCCESS)
printk(BIOS_ERR, "r8168: Error reading MAC from CBFS,"
- " using default 00:e0:4c:00:c0:b0\n");
+ " using default 00:e0:4c:00:c0:b0\n");
}
get_mac_address(mac, macstrbuf);