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-rw-r--r--src/drivers/net/r8168.c84
1 files changed, 50 insertions, 34 deletions
diff --git a/src/drivers/net/r8168.c b/src/drivers/net/r8168.c
index 07069aa88b..fcdac90481 100644
--- a/src/drivers/net/r8168.c
+++ b/src/drivers/net/r8168.c
@@ -92,25 +92,13 @@ static u8 get_hex_digit(const u8 c)
#define MACLEN 17
-static enum cb_err fetch_mac_string_vpd(u8 *macstrbuf, const u8 device_index)
+/* Returns MAC address based on the key that is passed in. */
+static enum cb_err fetch_mac_vpd_key(u8 *macstrbuf, const char *vpd_key)
{
struct region_device rdev;
void *search_address;
size_t search_length;
size_t offset;
- 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.");
@@ -123,26 +111,69 @@ static enum cb_err fetch_mac_string_vpd(u8 *macstrbuf, const u8 device_index)
}
search_length = region_device_sz(&rdev);
- offset = search(key, search_address, strlen(key),
+ offset = search(vpd_key, search_address, strlen(vpd_key),
search_length);
if (offset == search_length) {
printk(BIOS_ERR,
- "Error: Could not locate '%s' in VPD\n", key);
+ "Error: Could not locate '%s' in VPD\n", vpd_key);
return CB_ERR;
}
- printk(BIOS_DEBUG, "Located '%s' in VPD\n", key);
+ printk(BIOS_DEBUG, "Located '%s' in VPD\n", vpd_key);
- offset += strlen(key) + 1; /* move to next character */
+ offset += strlen(vpd_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;
}
+/* Prepares vpd_key by concatenating ethernet_mac with device_index */
+static enum cb_err fetch_mac_vpd_dev_idx(u8 *macstrbuf, u8 device_index)
+{
+ 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';
+
+ return fetch_mac_vpd_key(macstrbuf, key);
+}
+
+static void fetch_mac_string_vpd(struct drivers_net_config *config, u8 *macstrbuf)
+{
+ if (!config)
+ return;
+
+ /* Current implementation is up to 10 NIC cards */
+ if (config->device_index > MAX_DEVICE_SUPPORT) {
+ 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);
+ return;
+ }
+
+ /* check "ethernet_mac" first when the device index is 1 */
+ if (config->device_index == 1 &&
+ fetch_mac_vpd_dev_idx(macstrbuf, 0) == CB_SUCCESS)
+ return;
+
+ if (fetch_mac_vpd_dev_idx(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");
+}
+
static enum cb_err fetch_mac_string_cbfs(u8 *macstrbuf)
{
struct cbfsf fh;
@@ -186,25 +217,10 @@ static void program_mac_address(struct device *dev, u16 io_base)
/* 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;
- bool mac_found = false;
/* check the VPD for the mac address */
if (CONFIG(RT8168_GET_MAC_FROM_VPD)) {
- /* Current implementation is up to 10 NIC cards */
- if (config && config->device_index <= MAX_DEVICE_SUPPORT) {
- /* check "ethernet_mac" first when the device index is 1 */
- if (config->device_index == 1 &&
- fetch_mac_string_vpd(macstrbuf, 0) == CB_SUCCESS)
- mac_found = true;
- if (!mac_found && 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);
- }
+ fetch_mac_string_vpd(config, macstrbuf);
} else {
if (fetch_mac_string_cbfs(macstrbuf) != CB_SUCCESS)
printk(BIOS_ERR, "r8168: Error reading MAC from CBFS,"