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path: root/drivers/infiniband/hw/hfi1/platform.c
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Diffstat (limited to 'drivers/infiniband/hw/hfi1/platform.c')
-rw-r--r--drivers/infiniband/hw/hfi1/platform.c102
1 files changed, 63 insertions, 39 deletions
diff --git a/drivers/infiniband/hw/hfi1/platform.c b/drivers/infiniband/hw/hfi1/platform.c
index 838fe84e285a..a8af96d2b1b0 100644
--- a/drivers/infiniband/hw/hfi1/platform.c
+++ b/drivers/infiniband/hw/hfi1/platform.c
@@ -45,10 +45,14 @@
*
*/
+#include <linux/firmware.h>
+
#include "hfi.h"
#include "efivar.h"
#include "eprom.h"
+#define DEFAULT_PLATFORM_CONFIG_NAME "hfi1_platform.dat"
+
static int validate_scratch_checksum(struct hfi1_devdata *dd)
{
u64 checksum = 0, temp_scratch = 0;
@@ -58,8 +62,13 @@ static int validate_scratch_checksum(struct hfi1_devdata *dd)
version = (temp_scratch & BITMAP_VERSION_SMASK) >> BITMAP_VERSION_SHIFT;
/* Prevent power on default of all zeroes from passing checksum */
- if (!version)
+ if (!version) {
+ dd_dev_err(dd, "%s: Config bitmap uninitialized\n", __func__);
+ dd_dev_err(dd,
+ "%s: Please update your BIOS to support active channels\n",
+ __func__);
return 0;
+ }
/*
* ASIC scratch 0 only contains the checksum and bitmap version as
@@ -84,6 +93,8 @@ static int validate_scratch_checksum(struct hfi1_devdata *dd)
if (checksum + temp_scratch == 0xFFFF)
return 1;
+
+ dd_dev_err(dd, "%s: Configuration bitmap corrupted\n", __func__);
return 0;
}
@@ -131,25 +142,22 @@ static void save_platform_config_fields(struct hfi1_devdata *dd)
ppd->max_power_class = (temp_scratch & QSFP_MAX_POWER_SMASK) >>
QSFP_MAX_POWER_SHIFT;
+
+ ppd->config_from_scratch = true;
}
void get_platform_config(struct hfi1_devdata *dd)
{
int ret = 0;
- unsigned long size = 0;
u8 *temp_platform_config = NULL;
u32 esize;
+ const struct firmware *platform_config_file = NULL;
if (is_integrated(dd)) {
if (validate_scratch_checksum(dd)) {
save_platform_config_fields(dd);
return;
}
- dd_dev_err(dd, "%s: Config bitmap corrupted/uninitialized\n",
- __func__);
- dd_dev_err(dd,
- "%s: Please update your BIOS to support active channels\n",
- __func__);
} else {
ret = eprom_read_platform_config(dd,
(void **)&temp_platform_config,
@@ -160,36 +168,37 @@ void get_platform_config(struct hfi1_devdata *dd)
dd->platform_config.size = esize;
return;
}
- /* fail, try EFI variable */
-
- ret = read_hfi1_efi_var(dd, "configuration", &size,
- (void **)&temp_platform_config);
- if (!ret) {
- dd->platform_config.data = temp_platform_config;
- dd->platform_config.size = size;
- return;
- }
}
dd_dev_err(dd,
"%s: Failed to get platform config, falling back to sub-optimal default file\n",
__func__);
- /* fall back to request firmware */
- platform_config_load = 1;
-}
-void free_platform_config(struct hfi1_devdata *dd)
-{
- if (!platform_config_load) {
- /*
- * was loaded from EFI or the EPROM, release memory
- * allocated by read_efi_var/eprom_read_platform_config
- */
- kfree(dd->platform_config.data);
+ ret = request_firmware(&platform_config_file,
+ DEFAULT_PLATFORM_CONFIG_NAME,
+ &dd->pcidev->dev);
+ if (ret) {
+ dd_dev_err(dd,
+ "%s: No default platform config file found\n",
+ __func__);
+ return;
}
+
/*
- * else do nothing, dispose_firmware will release
- * struct firmware platform_config on driver exit
+ * Allocate separate memory block to store data and free firmware
+ * structure. This allows free_platform_config to treat EPROM and
+ * fallback configs in the same manner.
*/
+ dd->platform_config.data = kmemdup(platform_config_file->data,
+ platform_config_file->size,
+ GFP_KERNEL);
+ dd->platform_config.size = platform_config_file->size;
+ release_firmware(platform_config_file);
+}
+
+void free_platform_config(struct hfi1_devdata *dd)
+{
+ /* Release memory allocated for eprom or fallback file read. */
+ kfree(dd->platform_config.data);
}
void get_port_type(struct hfi1_pportdata *ppd)
@@ -242,7 +251,7 @@ static int qual_power(struct hfi1_pportdata *ppd)
if (ppd->offline_disabled_reason ==
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_POWER_POLICY)) {
- dd_dev_info(
+ dd_dev_err(
ppd->dd,
"%s: Port disabled due to system power restrictions\n",
__func__);
@@ -268,7 +277,7 @@ static int qual_bitrate(struct hfi1_pportdata *ppd)
if (ppd->offline_disabled_reason ==
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_LINKSPEED_POLICY)) {
- dd_dev_info(
+ dd_dev_err(
ppd->dd,
"%s: Cable failed bitrate check, disabling port\n",
__func__);
@@ -709,15 +718,15 @@ static void apply_tunings(
ret = load_8051_config(ppd->dd, DC_HOST_COMM_SETTINGS,
GENERAL_CONFIG, config_data);
if (ret != HCMD_SUCCESS)
- dd_dev_info(ppd->dd,
- "%s: Failed set ext device config params\n",
- __func__);
+ dd_dev_err(ppd->dd,
+ "%s: Failed set ext device config params\n",
+ __func__);
}
if (tx_preset_index == OPA_INVALID_INDEX) {
if (ppd->port_type == PORT_TYPE_QSFP && limiting_active)
- dd_dev_info(ppd->dd, "%s: Invalid Tx preset index\n",
- __func__);
+ dd_dev_err(ppd->dd, "%s: Invalid Tx preset index\n",
+ __func__);
return;
}
@@ -900,7 +909,7 @@ static int tune_qsfp(struct hfi1_pportdata *ppd,
case 0xD: /* fallthrough */
case 0xF:
default:
- dd_dev_info(ppd->dd, "%s: Unknown/unsupported cable\n",
+ dd_dev_warn(ppd->dd, "%s: Unknown/unsupported cable\n",
__func__);
break;
}
@@ -935,6 +944,21 @@ void tune_serdes(struct hfi1_pportdata *ppd)
if (loopback != LOOPBACK_NONE ||
ppd->dd->icode == ICODE_FUNCTIONAL_SIMULATOR) {
ppd->driver_link_ready = 1;
+
+ if (qsfp_mod_present(ppd)) {
+ ret = acquire_chip_resource(ppd->dd,
+ qsfp_resource(ppd->dd),
+ QSFP_WAIT);
+ if (ret) {
+ dd_dev_err(ppd->dd, "%s: hfi%d: cannot lock i2c chain\n",
+ __func__, (int)ppd->dd->hfi1_id);
+ goto bail;
+ }
+
+ refresh_qsfp_cache(ppd, &ppd->qsfp_info);
+ release_chip_resource(ppd->dd, qsfp_resource(ppd->dd));
+ }
+
return;
}
@@ -942,7 +966,7 @@ void tune_serdes(struct hfi1_pportdata *ppd)
case PORT_TYPE_DISCONNECTED:
ppd->offline_disabled_reason =
HFI1_ODR_MASK(OPA_LINKDOWN_REASON_DISCONNECTED);
- dd_dev_info(dd, "%s: Port disconnected, disabling port\n",
+ dd_dev_warn(dd, "%s: Port disconnected, disabling port\n",
__func__);
goto bail;
case PORT_TYPE_FIXED:
@@ -1027,7 +1051,7 @@ void tune_serdes(struct hfi1_pportdata *ppd)
}
break;
default:
- dd_dev_info(ppd->dd, "%s: Unknown port type\n", __func__);
+ dd_dev_warn(ppd->dd, "%s: Unknown port type\n", __func__);
ppd->port_type = PORT_TYPE_UNKNOWN;
tuning_method = OPA_UNKNOWN_TUNING;
total_atten = 0;
generated by cgit (git 2.34.1) at 2024-05-09 01:59:51 +0000