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[infiniband] Allow SRP device to be described using an EFI device path

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The UEFI specification provides a partial definition of an Infiniband
device path structure.  Use this structure to construct what may be a
plausible path containing at least some of the information required to
identify an SRP target device.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2020-10-23 15:26:30 +01:00
parent bf051a76ee
commit a2e44077cd
4 changed files with 95 additions and 33 deletions
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3
src/include/ipxe/efi/efi_path.h
View File

@@ -18,6 +18,7 @@ struct uri;
struct iscsi_session;
struct aoe_device;
struct fcp_description;
struct ib_srp_device;
struct usb_function;
extern EFI_DEVICE_PATH_PROTOCOL *
@@ -31,6 +32,8 @@ extern EFI_DEVICE_PATH_PROTOCOL *
efi_iscsi_path ( struct iscsi_session *iscsi );
extern EFI_DEVICE_PATH_PROTOCOL * efi_aoe_path ( struct aoe_device *aoedev );
extern EFI_DEVICE_PATH_PROTOCOL * efi_fcp_path ( struct fcp_description *desc );
extern EFI_DEVICE_PATH_PROTOCOL *
efi_ib_srp_path ( struct ib_srp_device *ib_srp );
extern EFI_DEVICE_PATH_PROTOCOL * efi_usb_path ( struct usb_function *func );
extern EFI_DEVICE_PATH_PROTOCOL * efi_describe ( struct interface *interface );

35
src/include/ipxe/ib_srp.h
View File

@@ -10,6 +10,8 @@
FILE_LICENCE ( BSD2 );
#include <stdint.h>
#include <ipxe/acpi.h>
#include <ipxe/interface.h>
#include <ipxe/infiniband.h>
#include <ipxe/srp.h>
@@ -55,4 +57,37 @@ struct sbft_ib_subtable {
uint8_t reserved[6];
} __attribute__ (( packed ));
/**
* An Infiniband SRP sBFT created by iPXE
*/
struct ipxe_ib_sbft {
/** The table header */
struct sbft_table table;
/** The SCSI subtable */
struct sbft_scsi_subtable scsi;
/** The SRP subtable */
struct sbft_srp_subtable srp;
/** The Infiniband subtable */
struct sbft_ib_subtable ib;
};
/** An Infiniband SRP device */
struct ib_srp_device {
/** Reference count */
struct refcnt refcnt;
/** SRP transport interface */
struct interface srp;
/** CMRC interface */
struct interface cmrc;
/** Infiniband device */
struct ib_device *ibdev;
/** ACPI descriptor */
struct acpi_descriptor desc;
/** Boot firmware table parameters */
struct ipxe_ib_sbft sbft;
};
#endif /* _IPXE_IB_SRP_H */