diff options
| author | Michael Brown <mcb30@ipxe.org> | 2021-09-08 14:29:36 +0100 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2021-09-09 12:56:02 +0100 |
| commit | 05a76acc6dc68bd962c12436ac9f48de1288fad2 (patch) | |
| tree | 42bcac955f93a44198b979efabcdf3d998f09ff9 | |
| parent | 91e147213c58c4c841416830122a0e44d69f69ad (diff) | |
| download | ipxe-05a76acc6dc68bd962c12436ac9f48de1288fad2.zip ipxe-05a76acc6dc68bd962c12436ac9f48de1288fad2.tar.gz ipxe-05a76acc6dc68bd962c12436ac9f48de1288fad2.tar.bz2 | |
[ecm] Use ACPI-provided system-specific MAC address if present
Use the "system MAC address" provided within the DSDT/SSDT if such an
address is available and has not already been assigned to a network
device.
Tested-by: Andreas Hammarskjöld <junior@2PintSoftware.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
| -rw-r--r-- | src/drivers/net/ecm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/drivers/net/ecm.c b/src/drivers/net/ecm.c index f531b04..826b3b1 100644 --- a/src/drivers/net/ecm.c +++ b/src/drivers/net/ecm.c @@ -30,6 +30,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <ipxe/if_ether.h> #include <ipxe/base16.h> #include <ipxe/profile.h> +#include <ipxe/acpimac.h> #include <ipxe/usb.h> #include "ecm.h" @@ -93,6 +94,14 @@ int ecm_fetch_mac ( struct usb_function *func, int len; int rc; + /* Use system-specific MAC address, if present and not already used */ + if ( ( ( rc = acpi_mac ( hw_addr ) ) == 0 ) && + ! find_netdev_by_ll_addr ( ðernet_protocol, hw_addr ) ) { + DBGC ( usb, "USB %s using system-specific MAC %s\n", + func->name, eth_ntoa ( hw_addr ) ); + return 0; + } + /* Fetch MAC address string */ len = usb_get_string_descriptor ( usb, desc->mac, 0, buf, sizeof ( buf ) ); |