sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-26 17:42:47 +03:00
Code Issues Packages Projects Releases Wiki Activity

[aoe] Allow AoE device to be described using an EFI device path

Browse Source 
There is no standard defined for AoE device paths in the UEFI
specification, and it seems unlikely that any standard will be adopted
in future.

Choose to construct an AoE device path using a concatenation of the
network device path and a SATA device path, treating the AoE major and
minor numbers as the HBA port number and port multiplier port number
respectively.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2020-10-19 14:42:11 +01:00
parent 2d49ce6f08
commit 04cb17de50
4 changed files with 82 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
src/interface/efi/efi_path.c
View File

@@ -24,6 +24,7 @@
#include <ipxe/netdevice.h>
#include <ipxe/vlan.h>
#include <ipxe/uri.h>
#include <ipxe/aoe.h>
#include <ipxe/usb.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/efi_driver.h>
@@ -220,6 +221,52 @@ EFI_DEVICE_PATH_PROTOCOL * efi_uri_path ( struct uri *uri ) {
return path;
}
/**
* Construct EFI device path for AoE device
*
* @v aoedev AoE device
* @ret path EFI device path, or NULL on error
*/
EFI_DEVICE_PATH_PROTOCOL * efi_aoe_path ( struct aoe_device *aoedev ) {
struct {
SATA_DEVICE_PATH sata;
EFI_DEVICE_PATH_PROTOCOL end;
} satapath;
EFI_DEVICE_PATH_PROTOCOL *netpath;
EFI_DEVICE_PATH_PROTOCOL *path;
/* Get network device path */
netpath = efi_netdev_path ( aoedev->netdev );
if ( ! netpath )
goto err_netdev;
/* Construct SATA path */
memset ( &satapath, 0, sizeof ( satapath ) );
satapath.sata.Header.Type = MESSAGING_DEVICE_PATH;
satapath.sata.Header.SubType = MSG_SATA_DP;
satapath.sata.Header.Length[0] = sizeof ( satapath.sata );
satapath.sata.HBAPortNumber = aoedev->major;
satapath.sata.PortMultiplierPortNumber = aoedev->minor;
satapath.end.Type = END_DEVICE_PATH_TYPE;
satapath.end.SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE;
satapath.end.Length[0] = sizeof ( satapath.end );
/* Construct overall device path */
path = efi_paths ( netpath, &satapath, NULL );
if ( ! path )
goto err_paths;
/* Free temporary paths */
free ( netpath );
return path;
err_paths:
free ( netpath );
err_netdev:
return NULL;
}
/**
* Construct EFI device path for USB function
*