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[bofm] Allow BOFM tests to be run without a BOFM-capable device driver

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The BOFM tests are not part of the standard unit test suite, since
they are designed to allow for exercising real BOFM driver code
outside of the context of a real IBM blade server.

Allow for the BOFM tests to be run without a real BOFM driver, by
providing a dummy driver for the specified PCI test device.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-04-29 13:39:12 +01:00
parent 4e909cc2b0
commit 0800723845
2 changed files with 113 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/include/ipxe/bofm.h
View File

@@ -328,6 +328,9 @@ struct bofm_operations {
#define __bofm_driver
#endif
/** Declare a BOFM test driver */
#define __bofm_test_driver __table_entry ( BOFM_DRIVERS, 02 )
/**
* Initialise BOFM device
*

111
src/tests/bofm_test.c
View File

@@ -26,6 +26,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <byteswap.h>
#include <ipxe/init.h>
#include <ipxe/pci.h>
#include <ipxe/ethernet.h>
@@ -135,6 +136,109 @@ void bofm_test ( struct pci_device *pci ) {
DBG_HDA ( 0, &bofmtab_update, sizeof ( bofmtab_update ) );
}
/**
* Harvest dummy Ethernet MAC
*
* @v bofm BOFM device
* @v mport Multi-port index
* @v mac MAC to fill in
* @ret rc Return status code
*/
static int bofm_dummy_harvest ( struct bofm_device *bofm, unsigned int mport,
uint8_t *mac ) {
struct {
uint16_t vendor;
uint16_t device;
uint16_t mport;
} __attribute__ (( packed )) dummy_mac;
/* Construct dummy MAC address */
dummy_mac.vendor = cpu_to_be16 ( bofm->pci->vendor );
dummy_mac.device = cpu_to_be16 ( bofm->pci->device );
dummy_mac.mport = cpu_to_be16 ( mport );
memcpy ( mac, &dummy_mac, sizeof ( dummy_mac ) );
printf ( "BOFMTEST mport %d constructed dummy MAC %s\n",
mport, eth_ntoa ( mac ) );
return 0;
}
/**
* Update Ethernet MAC for BOFM
*
* @v bofm BOFM device
* @v mport Multi-port index
* @v mac MAC to fill in
* @ret rc Return status code
*/
static int bofm_dummy_update ( struct bofm_device *bofm __unused,
unsigned int mport, const uint8_t *mac ) {
printf ( "BOFMTEST mport %d asked to update MAC to %s\n",
mport, eth_ntoa ( mac ) );
return 0;
}
/** Dummy BOFM operations */
static struct bofm_operations bofm_dummy_operations = {
.harvest = bofm_dummy_harvest,
.update = bofm_dummy_update,
};
/** Dummy BOFM device */
static struct bofm_device bofm_dummy;
/**
* Probe dummy BOFM device
*
* @v pci PCI device
* @v id PCI ID
* @ret rc Return status code
*/
static int bofm_dummy_probe ( struct pci_device *pci ) {
int rc;
/* Ignore probe for any other devices */
if ( pci->busdevfn != bofm_dummy.pci->busdevfn )
return 0;
/* Register BOFM device */
if ( ( rc = bofm_register ( &bofm_dummy ) ) != 0 )
return rc;
printf ( "BOFMTEST using dummy BOFM driver\n" );
return 0;
}
/**
* Remove dummy BOFM device
*
* @v pci PCI device
*/
static void bofm_dummy_remove ( struct pci_device *pci ) {
/* Ignore removal for any other devices */
if ( pci->busdevfn != bofm_dummy.pci->busdevfn )
return;
/* Unregister BOFM device */
bofm_unregister ( &bofm_dummy );
}
/** Dummy BOFM driver PCI IDs */
static struct pci_device_id bofm_dummy_ids[1] = {
{ .name = "dummy" },
};
/** Dummy BOFM driver */
struct pci_driver bofm_dummy_driver __bofm_test_driver = {
.ids = bofm_dummy_ids,
.id_count = ( sizeof ( bofm_dummy_ids ) /
sizeof ( bofm_dummy_ids[0] ) ),
.probe = bofm_dummy_probe,
.remove = bofm_dummy_remove,
};
/**
* Perform BOFM test at initialisation time
*
@@ -148,7 +252,7 @@ static void bofm_test_init ( void ) {
* bus:dev.fn address in order to perform a BOFM test at
* initialisation time.
*/
// busdevfn = PCI_BUSDEVFN ( <bus>, <dev>, <fn> );
// busdevfn = PCI_BUSDEVFN ( <segment>, <bus>, <dev>, <fn> );
/* Skip test if no PCI bus:dev.fn is defined */
if ( busdevfn < 0 )
@@ -163,6 +267,11 @@ static void bofm_test_init ( void ) {
return;
}
/* Initialise dummy BOFM device */
bofm_init ( &bofm_dummy, &pci, &bofm_dummy_operations );
bofm_dummy_ids[0].vendor = pci.vendor;
bofm_dummy_ids[0].device = pci.device;
/* Perform test */
bofm_test ( &pci );
}