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// SPDX-License-Identifier: GPL-2.0-or-later
/* Marvell/Qlogic FastLinQ NIC driver
*
* Copyright (C) 2020 Marvell International Ltd.
*/
#include <linux/kernel.h>
#include <linux/qed/qed_if.h>
#include <linux/vmalloc.h>
#include "qed.h"
#include "qed_devlink.h"
enum qed_devlink_param_id {
QED_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
QED_DEVLINK_PARAM_ID_IWARP_CMT,
};
struct qed_fw_fatal_ctx {
enum qed_hw_err_type err_type;
};
int qed_report_fatal_error(struct devlink *devlink, enum qed_hw_err_type err_type)
{
struct qed_devlink *qdl = devlink_priv(devlink);
struct qed_fw_fatal_ctx fw_fatal_ctx = {
.err_type = err_type,
};
if (qdl->fw_reporter)
devlink_health_report(qdl->fw_reporter,
"Fatal error occurred", &fw_fatal_ctx);
return 0;
}
static int
qed_fw_fatal_reporter_dump(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg, void *priv_ctx,
struct netlink_ext_ack *extack)
{
struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
struct qed_fw_fatal_ctx *fw_fatal_ctx = priv_ctx;
struct qed_dev *cdev = qdl->cdev;
u32 dbg_data_buf_size;
u8 *p_dbg_data_buf;
int err;
/* Having context means that was a dump request after fatal,
* so we enable extra debugging while gathering the dump,
* just in case
*/
cdev->print_dbg_data = fw_fatal_ctx ? true : false;
dbg_data_buf_size = qed_dbg_all_data_size(cdev);
p_dbg_data_buf = vzalloc(dbg_data_buf_size);
if (!p_dbg_data_buf) {
DP_NOTICE(cdev,
"Failed to allocate memory for a debug data buffer\n");
return -ENOMEM;
}
err = qed_dbg_all_data(cdev, p_dbg_data_buf);
if (err) {
DP_NOTICE(cdev, "Failed to obtain debug data\n");
vfree(p_dbg_data_buf);
return err;
}
devlink_fmsg_binary_pair_put(fmsg, "dump_data", p_dbg_data_buf,
dbg_data_buf_size);
vfree(p_dbg_data_buf);
return 0;
}
static int
qed_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter,
void *priv_ctx,
struct netlink_ext_ack *extack)
{
struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
struct qed_dev *cdev = qdl->cdev;
qed_recovery_process(cdev);
return 0;
}
static const struct devlink_health_reporter_ops qed_fw_fatal_reporter_ops = {
.name = "fw_fatal",
.recover = qed_fw_fatal_reporter_recover,
.dump = qed_fw_fatal_reporter_dump,
};
#define QED_REPORTER_FW_GRACEFUL_PERIOD 0
void qed_fw_reporters_create(struct devlink *devlink)
{
struct qed_devlink *dl = devlink_priv(devlink);
dl->fw_reporter = devlink_health_reporter_create(devlink, &qed_fw_fatal_reporter_ops,
QED_REPORTER_FW_GRACEFUL_PERIOD, dl);
if (IS_ERR(dl->fw_reporter)) {
DP_NOTICE(dl->cdev, "Failed to create fw reporter, err = %ld\n",
PTR_ERR(dl->fw_reporter));
dl->fw_reporter = NULL;
}
}
void qed_fw_reporters_destroy(struct devlink *devlink)
{
struct qed_devlink *dl = devlink_priv(devlink);
struct devlink_health_reporter *rep;
rep = dl->fw_reporter;
if (!IS_ERR_OR_NULL(rep))
devlink_health_reporter_destroy(rep);
}
static int qed_dl_param_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct qed_devlink *qed_dl = devlink_priv(dl);
struct qed_dev *cdev;
cdev = qed_dl->cdev;
ctx->val.vbool = cdev->iwarp_cmt;
return 0;
}
static int qed_dl_param_set(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct qed_devlink *qed_dl = devlink_priv(dl);
struct qed_dev *cdev;
cdev = qed_dl->cdev;
cdev->iwarp_cmt = ctx->val.vbool;
return 0;
}
static const struct devlink_param qed_devlink_params[] = {
DEVLINK_PARAM_DRIVER(QED_DEVLINK_PARAM_ID_IWARP_CMT,
"iwarp_cmt", DEVLINK_PARAM_TYPE_BOOL,
BIT(DEVLINK_PARAM_CMODE_RUNTIME),
qed_dl_param_get, qed_dl_param_set, NULL),
};
static int qed_devlink_info_get(struct devlink *devlink,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct qed_devlink *qed_dl = devlink_priv(devlink);
struct qed_dev *cdev = qed_dl->cdev;
struct qed_dev_info *dev_info;
char buf[100];
int err;
dev_info = &cdev->common_dev_info;
memcpy(buf, cdev->hwfns[0].hw_info.part_num, sizeof(cdev->hwfns[0].hw_info.part_num));
buf[sizeof(cdev->hwfns[0].hw_info.part_num)] = 0;
if (buf[0]) {
err = devlink_info_board_serial_number_put(req, buf);
if (err)
return err;
}
snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_3),
GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_2),
GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_1),
GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_0));
err = devlink_info_version_stored_put(req,
DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf);
if (err)
return err;
snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
dev_info->fw_major,
dev_info->fw_minor,
dev_info->fw_rev,
dev_info->fw_eng);
return devlink_info_version_running_put(req,
DEVLINK_INFO_VERSION_GENERIC_FW_APP, buf);
}
static const struct devlink_ops qed_dl_ops = {
.info_get = qed_devlink_info_get,
};
struct devlink *qed_devlink_register(struct qed_dev *cdev)
{
struct qed_devlink *qdevlink;
struct devlink *dl;
int rc;
dl = devlink_alloc(&qed_dl_ops, sizeof(struct qed_devlink),
&cdev->pdev->dev);
if (!dl)
return ERR_PTR(-ENOMEM);
qdevlink = devlink_priv(dl);
qdevlink->cdev = cdev;
rc = devlink_params_register(dl, qed_devlink_params,
ARRAY_SIZE(qed_devlink_params));
if (rc)
goto err_unregister;
cdev->iwarp_cmt = false;
qed_fw_reporters_create(dl);
devlink_register(dl);
return dl;
err_unregister:
devlink_free(dl);
return ERR_PTR(rc);
}
void qed_devlink_unregister(struct devlink *devlink)
{
if (!devlink)
return;
devlink_unregister(devlink);
qed_fw_reporters_destroy(devlink);
devlink_params_unregister(devlink, qed_devlink_params,
ARRAY_SIZE(qed_devlink_params));
devlink_free(devlink);
}
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