diff options
Diffstat (limited to 'src/interface/efi/efi_path.c')
| -rw-r--r-- | src/interface/efi/efi_path.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/interface/efi/efi_path.c b/src/interface/efi/efi_path.c index 76b1e4dae..bae0ac4b5 100644 --- a/src/interface/efi/efi_path.c +++ b/src/interface/efi/efi_path.c @@ -28,6 +28,7 @@ #include <ipxe/iscsi.h> #include <ipxe/aoe.h> #include <ipxe/fcp.h> +#include <ipxe/ib_srp.h> #include <ipxe/usb.h> #include <ipxe/efi/efi.h> #include <ipxe/efi/efi_driver.h> @@ -369,6 +370,60 @@ EFI_DEVICE_PATH_PROTOCOL * efi_fcp_path ( struct fcp_description *desc ) { } /** + * Construct EFI device path for Infiniband SRP device + * + * @v ib_srp Infiniband SRP device + * @ret path EFI device path, or NULL on error + */ +EFI_DEVICE_PATH_PROTOCOL * efi_ib_srp_path ( struct ib_srp_device *ib_srp ) { + const struct ipxe_ib_sbft *sbft = &ib_srp->sbft; + union ib_srp_target_port_id *id = + container_of ( &sbft->srp.target, union ib_srp_target_port_id, + srp ); + struct efi_device *efidev; + EFI_DEVICE_PATH_PROTOCOL *path; + INFINIBAND_DEVICE_PATH *ibpath; + EFI_DEVICE_PATH_PROTOCOL *end; + size_t prefix_len; + size_t len; + + /* Find parent EFI device */ + efidev = efidev_parent ( ib_srp->ibdev->dev ); + if ( ! efidev ) + return NULL; + + /* Calculate device path length */ + prefix_len = efi_path_len ( efidev->path ); + len = ( prefix_len + sizeof ( *ibpath ) + sizeof ( *end ) ); + + /* Allocate device path */ + path = zalloc ( len ); + if ( ! path ) + return NULL; + + /* Construct device path */ + memcpy ( path, efidev->path, prefix_len ); + ibpath = ( ( ( void * ) path ) + prefix_len ); + ibpath->Header.Type = MESSAGING_DEVICE_PATH; + ibpath->Header.SubType = MSG_INFINIBAND_DP; + ibpath->Header.Length[0] = sizeof ( *ibpath ); + ibpath->ResourceFlags = INFINIBAND_RESOURCE_FLAG_STORAGE_PROTOCOL; + memcpy ( ibpath->PortGid, &sbft->ib.dgid, sizeof ( ibpath->PortGid ) ); + memcpy ( &ibpath->ServiceId, &sbft->ib.service_id, + sizeof ( ibpath->ServiceId ) ); + memcpy ( &ibpath->TargetPortId, &id->ib.ioc_guid, + sizeof ( ibpath->TargetPortId ) ); + memcpy ( &ibpath->DeviceId, &id->ib.id_ext, + sizeof ( ibpath->DeviceId ) ); + end = ( ( ( void * ) ibpath ) + sizeof ( *ibpath ) ); + end->Type = END_DEVICE_PATH_TYPE; + end->SubType = END_ENTIRE_DEVICE_PATH_SUBTYPE; + end->Length[0] = sizeof ( *end ); + + return path; +} + +/** * Construct EFI device path for USB function * * @v func USB function |