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path: root/drivers/infiniband/hw/hfi1/firmware.c
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Diffstat (limited to 'drivers/infiniband/hw/hfi1/firmware.c')
-rw-r--r--drivers/infiniband/hw/hfi1/firmware.c192
1 files changed, 76 insertions, 116 deletions
diff --git a/drivers/infiniband/hw/hfi1/firmware.c b/drivers/infiniband/hw/hfi1/firmware.c
index 4042c11b2742..3c228aeaaf81 100644
--- a/drivers/infiniband/hw/hfi1/firmware.c
+++ b/drivers/infiniband/hw/hfi1/firmware.c
@@ -1,53 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright(c) 2015 - 2017 Intel Corporation.
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * BSD LICENSE
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * - Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
*/
#include <linux/firmware.h>
#include <linux/mutex.h>
-#include <linux/module.h>
#include <linux/delay.h>
#include <linux/crc32.h>
@@ -64,30 +21,26 @@
#define DEFAULT_FW_FABRIC_NAME "hfi1_fabric.fw"
#define DEFAULT_FW_SBUS_NAME "hfi1_sbus.fw"
#define DEFAULT_FW_PCIE_NAME "hfi1_pcie.fw"
-#define DEFAULT_PLATFORM_CONFIG_NAME "hfi1_platform.dat"
#define ALT_FW_8051_NAME_ASIC "hfi1_dc8051_d.fw"
#define ALT_FW_FABRIC_NAME "hfi1_fabric_d.fw"
#define ALT_FW_SBUS_NAME "hfi1_sbus_d.fw"
#define ALT_FW_PCIE_NAME "hfi1_pcie_d.fw"
+MODULE_FIRMWARE(DEFAULT_FW_8051_NAME_ASIC);
+MODULE_FIRMWARE(DEFAULT_FW_FABRIC_NAME);
+MODULE_FIRMWARE(DEFAULT_FW_SBUS_NAME);
+MODULE_FIRMWARE(DEFAULT_FW_PCIE_NAME);
+
static uint fw_8051_load = 1;
static uint fw_fabric_serdes_load = 1;
static uint fw_pcie_serdes_load = 1;
static uint fw_sbus_load = 1;
-/*
- * Access required in platform.c
- * Maintains state of whether the platform config was fetched via the
- * fallback option
- */
-uint platform_config_load;
-
/* Firmware file names get set in hfi1_firmware_init() based on the above */
static char *fw_8051_name;
static char *fw_fabric_serdes_name;
static char *fw_sbus_name;
static char *fw_pcie_serdes_name;
-static char *platform_config_name;
#define SBUS_MAX_POLL_COUNT 100
#define SBUS_COUNTER(reg, name) \
@@ -121,6 +74,12 @@ struct css_header {
#define MU_SIZE 8
#define EXPONENT_SIZE 4
+/* size of platform configuration partition */
+#define MAX_PLATFORM_CONFIG_FILE_SIZE 4096
+
+/* size of file of plaform configuration encoded in format version 4 */
+#define PLATFORM_CONFIG_FORMAT_4_FILE_SIZE 528
+
/* the file itself */
struct firmware_file {
struct css_header css_header;
@@ -177,7 +136,6 @@ static struct firmware_details fw_8051;
static struct firmware_details fw_fabric;
static struct firmware_details fw_pcie;
static struct firmware_details fw_sbus;
-static const struct firmware *platform_config;
/* flags for turn_off_spicos() */
#define SPICO_SBUS 0x1
@@ -615,6 +573,14 @@ retry:
fw_fabric_serdes_name = ALT_FW_FABRIC_NAME;
fw_sbus_name = ALT_FW_SBUS_NAME;
fw_pcie_serdes_name = ALT_FW_PCIE_NAME;
+
+ /*
+ * Add a delay before obtaining and loading debug firmware.
+ * Authorization will fail if the delay between firmware
+ * authorization events is shorter than 50us. Add 100us to
+ * make a delay time safe.
+ */
+ usleep_range(100, 120);
}
if (fw_sbus_load) {
@@ -675,7 +641,6 @@ done:
static int obtain_firmware(struct hfi1_devdata *dd)
{
unsigned long timeout;
- int err = 0;
mutex_lock(&fw_mutex);
@@ -699,38 +664,11 @@ static int obtain_firmware(struct hfi1_devdata *dd)
}
/* not in FW_TRY state */
- if (fw_state == FW_FINAL) {
- if (platform_config) {
- dd->platform_config.data = platform_config->data;
- dd->platform_config.size = platform_config->size;
- }
- goto done; /* already acquired */
- } else if (fw_state == FW_ERR) {
- goto done; /* already tried and failed */
- }
- /* fw_state is FW_EMPTY */
-
/* set fw_state to FW_TRY, FW_FINAL, or FW_ERR, and fw_err */
- __obtain_firmware(dd);
-
- if (platform_config_load) {
- platform_config = NULL;
- err = request_firmware(&platform_config, platform_config_name,
- &dd->pcidev->dev);
- if (err) {
- platform_config = NULL;
- dd_dev_err(dd,
- "%s: No default platform config file found\n",
- __func__);
- goto done;
- }
- dd->platform_config.data = platform_config->data;
- dd->platform_config.size = platform_config->size;
- }
+ if (fw_state == FW_EMPTY)
+ __obtain_firmware(dd);
-done:
mutex_unlock(&fw_mutex);
-
return fw_err;
}
@@ -752,9 +690,6 @@ void dispose_firmware(void)
dispose_one_firmware(&fw_pcie);
dispose_one_firmware(&fw_sbus);
- release_firmware(platform_config);
- platform_config = NULL;
-
/* retain the error state, otherwise revert to empty */
if (fw_state != FW_ERR)
fw_state = FW_EMPTY;
@@ -1079,6 +1014,13 @@ static int load_8051_firmware(struct hfi1_devdata *dd,
dd_dev_info(dd, "8051 firmware version %d.%d.%d\n",
(int)ver_major, (int)ver_minor, (int)ver_patch);
dd->dc8051_ver = dc8051_ver(ver_major, ver_minor, ver_patch);
+ ret = write_host_interface_version(dd, HOST_INTERFACE_VERSION);
+ if (ret != HCMD_SUCCESS) {
+ dd_dev_err(dd,
+ "Failed to set host interface version, return 0x%x\n",
+ ret);
+ return -EIO;
+ }
return 0;
}
@@ -1172,7 +1114,7 @@ static void turn_off_spicos(struct hfi1_devdata *dd, int flags)
* Reset all of the fabric serdes for this HFI in preparation to take the
* link to Polling.
*
- * To do a reset, we need to write to to the serdes registers. Unfortunately,
+ * To do a reset, we need to write to the serdes registers. Unfortunately,
* the fabric serdes download to the other HFI on the ASIC will have turned
* off the firmware validation on this HFI. This means we can't write to the
* registers to reset the serdes. Work around this by performing a complete
@@ -1412,7 +1354,14 @@ int acquire_hw_mutex(struct hfi1_devdata *dd)
unsigned long timeout;
int try = 0;
u8 mask = 1 << dd->hfi1_id;
- u8 user;
+ u8 user = (u8)read_csr(dd, ASIC_CFG_MUTEX);
+
+ if (user == mask) {
+ dd_dev_info(dd,
+ "Hardware mutex already acquired, mutex mask %u\n",
+ (u32)mask);
+ return 0;
+ }
retry:
timeout = msecs_to_jiffies(HM_TIMEOUT) + jiffies;
@@ -1443,7 +1392,15 @@ retry:
void release_hw_mutex(struct hfi1_devdata *dd)
{
- write_csr(dd, ASIC_CFG_MUTEX, 0);
+ u8 mask = 1 << dd->hfi1_id;
+ u8 user = (u8)read_csr(dd, ASIC_CFG_MUTEX);
+
+ if (user != mask)
+ dd_dev_warn(dd,
+ "Unable to release hardware mutex, mutex mask %u, my mask %u\n",
+ (u32)user, (u32)mask);
+ else
+ write_csr(dd, ASIC_CFG_MUTEX, 0);
}
/* return the given resource bit(s) as a mask for the given HFI */
@@ -1709,10 +1666,8 @@ int hfi1_firmware_init(struct hfi1_devdata *dd)
}
/* no 8051 or QSFP on simulator */
- if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) {
+ if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR)
fw_8051_load = 0;
- platform_config_load = 0;
- }
if (!fw_8051_name) {
if (dd->icode == ICODE_RTL_SILICON)
@@ -1726,8 +1681,6 @@ int hfi1_firmware_init(struct hfi1_devdata *dd)
fw_sbus_name = DEFAULT_FW_SBUS_NAME;
if (!fw_pcie_serdes_name)
fw_pcie_serdes_name = DEFAULT_FW_PCIE_NAME;
- if (!platform_config_name)
- platform_config_name = DEFAULT_PLATFORM_CONFIG_NAME;
return obtain_firmware(dd);
}
@@ -1762,7 +1715,7 @@ static int check_meta_version(struct hfi1_devdata *dd, u32 *system_table)
ver_start /= 8;
meta_ver = *((u8 *)system_table + ver_start) & ((1 << ver_len) - 1);
- if (meta_ver < 5) {
+ if (meta_ver < 4) {
dd_dev_info(
dd, "%s:Please update platform config\n", __func__);
return -EINVAL;
@@ -1773,6 +1726,7 @@ static int check_meta_version(struct hfi1_devdata *dd, u32 *system_table)
int parse_platform_config(struct hfi1_devdata *dd)
{
struct platform_config_cache *pcfgcache = &dd->pcfg_cache;
+ struct hfi1_pportdata *ppd = dd->pport;
u32 *ptr = NULL;
u32 header1 = 0, header2 = 0, magic_num = 0, crc = 0, file_length = 0;
u32 record_idx = 0, table_type = 0, table_length_dwords = 0;
@@ -1784,11 +1738,12 @@ int parse_platform_config(struct hfi1_devdata *dd)
* scratch register bitmap, thus there is no platform config to parse.
* Skip parsing in these situations.
*/
- if (is_integrated(dd) && !platform_config_load)
+ if (ppd->config_from_scratch)
return 0;
if (!dd->platform_config.data) {
dd_dev_err(dd, "%s: Missing config file\n", __func__);
+ ret = -EINVAL;
goto bail;
}
ptr = (u32 *)dd->platform_config.data;
@@ -1797,16 +1752,31 @@ int parse_platform_config(struct hfi1_devdata *dd)
ptr++;
if (magic_num != PLATFORM_CONFIG_MAGIC_NUM) {
dd_dev_err(dd, "%s: Bad config file\n", __func__);
+ ret = -EINVAL;
goto bail;
}
/* Field is file size in DWORDs */
file_length = (*ptr) * 4;
- ptr++;
+
+ /*
+ * Length can't be larger than partition size. Assume platform
+ * config format version 4 is being used. Interpret the file size
+ * field as header instead by not moving the pointer.
+ */
+ if (file_length > MAX_PLATFORM_CONFIG_FILE_SIZE) {
+ dd_dev_info(dd,
+ "%s:File length out of bounds, using alternative format\n",
+ __func__);
+ file_length = PLATFORM_CONFIG_FORMAT_4_FILE_SIZE;
+ } else {
+ ptr++;
+ }
if (file_length > dd->platform_config.size) {
dd_dev_info(dd, "%s:File claims to be larger than read size\n",
__func__);
+ ret = -EINVAL;
goto bail;
} else if (file_length < dd->platform_config.size) {
dd_dev_info(dd,
@@ -1817,7 +1787,8 @@ int parse_platform_config(struct hfi1_devdata *dd)
/*
* In both cases where we proceed, using the self-reported file length
- * is the safer option
+ * is the safer option. In case of old format a predefined value is
+ * being used.
*/
while (ptr < (u32 *)(dd->platform_config.data + file_length)) {
header1 = *ptr;
@@ -1826,6 +1797,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
dd_dev_err(dd, "%s: Failed validation at offset %ld\n",
__func__, (ptr - (u32 *)
dd->platform_config.data));
+ ret = -EINVAL;
goto bail;
}
@@ -1857,11 +1829,8 @@ int parse_platform_config(struct hfi1_devdata *dd)
2;
break;
case PLATFORM_CONFIG_RX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_TX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_QSFP_ATTEN_TABLE:
- /* fall through */
case PLATFORM_CONFIG_VARIABLE_SETTINGS_TABLE:
pcfgcache->config_tables[table_type].num_table =
table_length_dwords;
@@ -1872,6 +1841,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
__func__, table_type,
(ptr - (u32 *)
dd->platform_config.data));
+ ret = -EINVAL;
goto bail; /* We don't trust this file now */
}
pcfgcache->config_tables[table_type].table = ptr;
@@ -1879,15 +1849,10 @@ int parse_platform_config(struct hfi1_devdata *dd)
/* metadata table */
switch (table_type) {
case PLATFORM_CONFIG_SYSTEM_TABLE:
- /* fall through */
case PLATFORM_CONFIG_PORT_TABLE:
- /* fall through */
case PLATFORM_CONFIG_RX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_TX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_QSFP_ATTEN_TABLE:
- /* fall through */
case PLATFORM_CONFIG_VARIABLE_SETTINGS_TABLE:
break;
default:
@@ -1896,6 +1861,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
__func__, table_type,
(ptr -
(u32 *)dd->platform_config.data));
+ ret = -EINVAL;
goto bail; /* We don't trust this file now */
}
pcfgcache->config_tables[table_type].table_metadata =
@@ -1913,6 +1879,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
dd_dev_err(dd, "%s: Failed CRC check at offset %ld\n",
__func__, (ptr -
(u32 *)dd->platform_config.data));
+ ret = -EINVAL;
goto bail;
}
/* Jump the CRC DWORD */
@@ -2016,15 +1983,10 @@ static int get_platform_fw_field_metadata(struct hfi1_devdata *dd, int table,
switch (table) {
case PLATFORM_CONFIG_SYSTEM_TABLE:
- /* fall through */
case PLATFORM_CONFIG_PORT_TABLE:
- /* fall through */
case PLATFORM_CONFIG_RX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_TX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_QSFP_ATTEN_TABLE:
- /* fall through */
case PLATFORM_CONFIG_VARIABLE_SETTINGS_TABLE:
if (field && field < platform_config_table_limits[table])
src_ptr =
@@ -2073,13 +2035,14 @@ int get_platform_config_field(struct hfi1_devdata *dd,
int ret = 0, wlen = 0, seek = 0;
u32 field_len_bits = 0, field_start_bits = 0, *src_ptr = NULL;
struct platform_config_cache *pcfgcache = &dd->pcfg_cache;
+ struct hfi1_pportdata *ppd = dd->pport;
if (data)
memset(data, 0, len);
else
return -EINVAL;
- if (is_integrated(dd) && !platform_config_load) {
+ if (ppd->config_from_scratch) {
/*
* Use saved configuration from ppd for integrated platforms
*/
@@ -2126,11 +2089,8 @@ int get_platform_config_field(struct hfi1_devdata *dd,
pcfgcache->config_tables[table_type].table;
break;
case PLATFORM_CONFIG_RX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_TX_PRESET_TABLE:
- /* fall through */
case PLATFORM_CONFIG_QSFP_ATTEN_TABLE:
- /* fall through */
case PLATFORM_CONFIG_VARIABLE_SETTINGS_TABLE:
src_ptr = pcfgcache->config_tables[table_type].table;
generated by cgit (git 2.34.1) at 2025-12-25 08:30:35 +0000