diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/net/chip.h | 8 | ||||
| -rw-r--r-- | src/drivers/net/r8168.c | 39 |
2 files changed, 38 insertions, 9 deletions
diff --git a/src/drivers/net/chip.h b/src/drivers/net/chip.h index 8e8c02b002..81dbefa556 100644 --- a/src/drivers/net/chip.h +++ b/src/drivers/net/chip.h @@ -16,7 +16,13 @@ struct drivers_net_config { uint16_t customized_leds; - unsigned wake; /* Wake pin for ACPI _PRW */ + unsigned wake; /* Wake pin for ACPI _PRW */ + /* + * There maybe many NIC cards in a system. + * This paramter is for driver to identify what + * the device number is and the valid range is [1-10]. + */ + uint8_t device_index; }; #endif /* __DRIVERS_R8168_CHIP_H__ */ 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); |