diff options
| author | Edward O'Callaghan <quasisec@google.com> | 2020-03-23 13:06:42 +1100 |
|---|---|---|
| committer | Edward O'Callaghan <quasisec@chromium.org> | 2020-03-26 05:32:40 +0000 |
| commit | 0e1380683fae3fd042ff30274add110a45720aa1 (patch) | |
| tree | 7821a230d23c5e4abbd460e826f667f52a74878d /src/drivers | |
| parent | d08bc5ad7a83f56e0114b1d01bcab853d0da5cfb (diff) | |
| download | coreboot-0e1380683fae3fd042ff30274add110a45720aa1.tar.xz | |
drivers/net/r8168: Fix ethernet_mac[0-9] format for vpd
The format for VPD has changed s.t. the first NIC should
always have a zero concat to the end.
Adjust all the respective boards to shift back by one and
adjust drivers/net friends to remove the 'special casing'
of idx == 0.
Background:
https://chromeos.google.com/partner/dlm/docs/factory/vpd.html#field-ethernet_macn
V.2: Fixup a code comment typo while we are here.
V.3: Vary special casing semantics for idx==0 => default mac addr is set.
V.4: Rework to still support the legacy path.
BUG=b:152157720
BRANCH=none
TEST=none
Change-Id: Idf83cc621a9333186dabb668b22c4b78e211930a
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39771
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/net/Kconfig | 8 | ||||
| -rw-r--r-- | src/drivers/net/r8168.c | 24 |
2 files changed, 19 insertions, 13 deletions
diff --git a/src/drivers/net/Kconfig b/src/drivers/net/Kconfig index 92de1ed0e7..282075b31d 100644 --- a/src/drivers/net/Kconfig +++ b/src/drivers/net/Kconfig @@ -19,6 +19,14 @@ config RT8168_GET_MAC_FROM_VPD default n select REALTEK_8168_RESET +config RT8168_SUPPORT_LEGACY_VPD_MAC + bool + default n + help + Previously VPD expected that device_indexes set to zero were + special cased. Selecting this Kconfig restores the legacy + VPD format and behaviour. If unsure, you likely do not need this! + config RT8168_SET_LED_MODE bool default n diff --git a/src/drivers/net/r8168.c b/src/drivers/net/r8168.c index 99d472ce8e..eaf33f2978 100644 --- a/src/drivers/net/r8168.c +++ b/src/drivers/net/r8168.c @@ -141,16 +141,10 @@ 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]. + * Map each NIC on the DUT to "ethernet_macN", where N is [0-9]. + * Translate index number from integer to ascii by adding '0' char. */ - 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'; + key[DEVICE_INDEX_BYTE] = device_index + '0'; return fetch_mac_vpd_key(macstrbuf, key); } @@ -167,12 +161,16 @@ static void fetch_mac_string_vpd(struct drivers_net_config *config, u8 *macstrbu 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) + if (fetch_mac_vpd_dev_idx(macstrbuf, config->device_index) == CB_SUCCESS) return; - if (fetch_mac_vpd_dev_idx(macstrbuf, config->device_index) != CB_SUCCESS) + if (!CONFIG(RT8168_SUPPORT_LEGACY_VPD_MAC)) { + printk(BIOS_ERR, "r8168: mac address not found in VPD," + " using default 00:e0:4c:00:c0:b0\n"); + return; + } + + if (fetch_mac_vpd_key(macstrbuf, "ethernet_mac ") != CB_SUCCESS) printk(BIOS_ERR, "r8168: mac address not found in VPD," " using default 00:e0:4c:00:c0:b0\n"); } |