4319c7f77a
Based on 1 normalized pattern(s): released according to the gnu gpl version 2 or any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 10 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.650321694@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (C) 2012 CERN (www.cern.ch)
|
|
* Author: Alessandro Rubini <rubini@gnudd.com>
|
|
*
|
|
* This work is part of the White Rabbit project, a research effort led
|
|
* by CERN, the European Institute for Nuclear Research.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/fmc.h>
|
|
#include <linux/ipmi-fru.h>
|
|
|
|
/* The fru parser is both user and kernel capable: it needs alloc */
|
|
void *fru_alloc(size_t size)
|
|
{
|
|
return kzalloc(size, GFP_KERNEL);
|
|
}
|
|
|
|
/* The actual match function */
|
|
int fmc_match(struct device *dev, struct device_driver *drv)
|
|
{
|
|
struct fmc_driver *fdrv = to_fmc_driver(drv);
|
|
struct fmc_device *fdev = to_fmc_device(dev);
|
|
struct fmc_fru_id *fid;
|
|
int i, matched = 0;
|
|
|
|
/* This currently only matches the EEPROM (FRU id) */
|
|
fid = fdrv->id_table.fru_id;
|
|
if (!fid) {
|
|
dev_warn(&fdev->dev, "Driver has no ID: matches all\n");
|
|
matched = 1;
|
|
} else {
|
|
if (!fdev->id.manufacturer || !fdev->id.product_name)
|
|
return 0; /* the device has no FRU information */
|
|
for (i = 0; i < fdrv->id_table.fru_id_nr; i++, fid++) {
|
|
if (fid->manufacturer &&
|
|
strcmp(fid->manufacturer, fdev->id.manufacturer))
|
|
continue;
|
|
if (fid->product_name &&
|
|
strcmp(fid->product_name, fdev->id.product_name))
|
|
continue;
|
|
matched = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* FIXME: match SDB contents */
|
|
return matched;
|
|
}
|
|
|
|
/* This function creates ID info for a newly registered device */
|
|
int fmc_fill_id_info(struct fmc_device *fmc)
|
|
{
|
|
struct fru_common_header *h;
|
|
struct fru_board_info_area *bia;
|
|
int ret, allocated = 0;
|
|
|
|
/* If we know the eeprom length, try to read it off the device */
|
|
if (fmc->eeprom_len && !fmc->eeprom) {
|
|
fmc->eeprom = kzalloc(fmc->eeprom_len, GFP_KERNEL);
|
|
if (!fmc->eeprom)
|
|
return -ENOMEM;
|
|
allocated = 1;
|
|
ret = fmc_read_ee(fmc, 0, fmc->eeprom, fmc->eeprom_len);
|
|
if (ret < 0)
|
|
goto out;
|
|
}
|
|
|
|
/* If no eeprom, continue with other matches */
|
|
if (!fmc->eeprom)
|
|
return 0;
|
|
|
|
dev_info(fmc->hwdev, "mezzanine %i\n", fmc->slot_id); /* header */
|
|
|
|
/* So we have the eeprom: parse the FRU part (if any) */
|
|
h = (void *)fmc->eeprom;
|
|
if (h->format != 1) {
|
|
pr_info(" EEPROM has no FRU information\n");
|
|
goto out;
|
|
}
|
|
if (!fru_header_cksum_ok(h)) {
|
|
pr_info(" FRU: wrong header checksum\n");
|
|
goto out;
|
|
}
|
|
bia = fru_get_board_area(h);
|
|
if (!fru_bia_cksum_ok(bia)) {
|
|
pr_info(" FRU: wrong board area checksum\n");
|
|
goto out;
|
|
}
|
|
fmc->id.manufacturer = fru_get_board_manufacturer(h);
|
|
fmc->id.product_name = fru_get_product_name(h);
|
|
pr_info(" Manufacturer: %s\n", fmc->id.manufacturer);
|
|
pr_info(" Product name: %s\n", fmc->id.product_name);
|
|
|
|
/* Create the short name (FIXME: look in sdb as well) */
|
|
fmc->mezzanine_name = kstrdup(fmc->id.product_name, GFP_KERNEL);
|
|
|
|
out:
|
|
if (allocated) {
|
|
kfree(fmc->eeprom);
|
|
fmc->eeprom = NULL;
|
|
}
|
|
return 0; /* no error: let other identification work */
|
|
}
|
|
|
|
/* Some ID data is allocated using fru_alloc() above, so release it */
|
|
void fmc_free_id_info(struct fmc_device *fmc)
|
|
{
|
|
kfree(fmc->mezzanine_name);
|
|
kfree(fmc->id.manufacturer);
|
|
kfree(fmc->id.product_name);
|
|
}
|