From a2e44077cdb0713d90766e61165ca71fce902003 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Fri, 23 Oct 2020 15:26:30 +0100
Subject: [infiniband] Allow SRP device to be described using an EFI device
 path

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>
---
 src/include/ipxe/efi/efi_path.h |  3 +++
 src/include/ipxe/ib_srp.h       | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

(limited to 'src/include')

diff --git a/src/include/ipxe/efi/efi_path.h b/src/include/ipxe/efi/efi_path.h
index 91a6c255d..76ded728c 100644
--- a/src/include/ipxe/efi/efi_path.h
+++ b/src/include/ipxe/efi/efi_path.h
@@ -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 );
diff --git a/src/include/ipxe/ib_srp.h b/src/include/ipxe/ib_srp.h
index ad407b0cf..4b6df8d3b 100644
--- a/src/include/ipxe/ib_srp.h
+++ b/src/include/ipxe/ib_srp.h
@@ -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 */
-- 
cgit v1.2.3-55-g7522