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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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35
src/net/infiniband/ib_srp.c
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@@ -37,6 +37,7 @@ FILE_LICENCE ( BSD2 );
#include <ipxe/open.h>
#include <ipxe/base16.h>
#include <ipxe/acpi.h>
#include <ipxe/efi/efi_path.h>
#include <ipxe/srp.h>
#include <ipxe/infiniband.h>
#include <ipxe/ib_cmrc.h>
@@ -69,39 +70,6 @@ struct acpi_model ib_sbft_model __acpi_model;
******************************************************************************
*/
/**
* An IB 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;
};
/**
* Free IB SRP device
*
@@ -153,6 +121,7 @@ static struct interface_descriptor ib_srp_cmrc_desc =
static struct interface_operation ib_srp_srp_op[] = {
INTF_OP ( acpi_describe, struct ib_srp_device *, ib_srp_describe ),
INTF_OP ( intf_close, struct ib_srp_device *, ib_srp_close ),
EFI_INTF_OP ( efi_describe, struct ib_srp_device *, efi_ib_srp_path ),
};
/** IB SRP SRP interface descriptor */