// SPDX-License-Identifier: GPL-2.0-or-later
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/* Marvell/Qlogic FastLinQ NIC driver
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*
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* Copyright (C) 2020 Marvell International Ltd.
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*/
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#include <linux/kernel.h>
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#include <linux/qed/qed_if.h>
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#include <linux/vmalloc.h>
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#include "qed.h"
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#include "qed_devlink.h"
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enum qed_devlink_param_id {
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QED_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
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QED_DEVLINK_PARAM_ID_IWARP_CMT,
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};
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struct qed_fw_fatal_ctx {
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enum qed_hw_err_type err_type;
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};
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int qed_report_fatal_error(struct devlink *devlink, enum qed_hw_err_type err_type)
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{
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struct qed_devlink *qdl = devlink_priv(devlink);
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struct qed_fw_fatal_ctx fw_fatal_ctx = {
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.err_type = err_type,
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};
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if (qdl->fw_reporter)
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devlink_health_report(qdl->fw_reporter,
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"Fatal error occurred", &fw_fatal_ctx);
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return 0;
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}
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static int
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qed_fw_fatal_reporter_dump(struct devlink_health_reporter *reporter,
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struct devlink_fmsg *fmsg, void *priv_ctx,
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struct netlink_ext_ack *extack)
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{
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struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
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struct qed_fw_fatal_ctx *fw_fatal_ctx = priv_ctx;
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struct qed_dev *cdev = qdl->cdev;
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u32 dbg_data_buf_size;
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u8 *p_dbg_data_buf;
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int err;
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/* Having context means that was a dump request after fatal,
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* so we enable extra debugging while gathering the dump,
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* just in case
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*/
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cdev->print_dbg_data = fw_fatal_ctx ? true : false;
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dbg_data_buf_size = qed_dbg_all_data_size(cdev);
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p_dbg_data_buf = vzalloc(dbg_data_buf_size);
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if (!p_dbg_data_buf) {
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DP_NOTICE(cdev,
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"Failed to allocate memory for a debug data buffer\n");
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return -ENOMEM;
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}
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err = qed_dbg_all_data(cdev, p_dbg_data_buf);
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if (err) {
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DP_NOTICE(cdev, "Failed to obtain debug data\n");
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vfree(p_dbg_data_buf);
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return err;
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}
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err = devlink_fmsg_binary_pair_put(fmsg, "dump_data",
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p_dbg_data_buf, dbg_data_buf_size);
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vfree(p_dbg_data_buf);
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return err;
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}
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static int
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qed_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter,
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void *priv_ctx,
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struct netlink_ext_ack *extack)
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{
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struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
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struct qed_dev *cdev = qdl->cdev;
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qed_recovery_process(cdev);
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return 0;
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}
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static const struct devlink_health_reporter_ops qed_fw_fatal_reporter_ops = {
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.name = "fw_fatal",
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.recover = qed_fw_fatal_reporter_recover,
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.dump = qed_fw_fatal_reporter_dump,
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};
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#define QED_REPORTER_FW_GRACEFUL_PERIOD 1200000
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void qed_fw_reporters_create(struct devlink *devlink)
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{
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struct qed_devlink *dl = devlink_priv(devlink);
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dl->fw_reporter = devlink_health_reporter_create(devlink, &qed_fw_fatal_reporter_ops,
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QED_REPORTER_FW_GRACEFUL_PERIOD, dl);
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if (IS_ERR(dl->fw_reporter)) {
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DP_NOTICE(dl->cdev, "Failed to create fw reporter, err = %ld\n",
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PTR_ERR(dl->fw_reporter));
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dl->fw_reporter = NULL;
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}
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}
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void qed_fw_reporters_destroy(struct devlink *devlink)
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{
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struct qed_devlink *dl = devlink_priv(devlink);
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struct devlink_health_reporter *rep;
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rep = dl->fw_reporter;
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if (!IS_ERR_OR_NULL(rep))
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devlink_health_reporter_destroy(rep);
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}
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static int qed_dl_param_get(struct devlink *dl, u32 id,
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struct devlink_param_gset_ctx *ctx)
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{
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struct qed_devlink *qed_dl = devlink_priv(dl);
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struct qed_dev *cdev;
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cdev = qed_dl->cdev;
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ctx->val.vbool = cdev->iwarp_cmt;
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return 0;
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}
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static int qed_dl_param_set(struct devlink *dl, u32 id,
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struct devlink_param_gset_ctx *ctx)
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{
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struct qed_devlink *qed_dl = devlink_priv(dl);
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struct qed_dev *cdev;
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cdev = qed_dl->cdev;
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cdev->iwarp_cmt = ctx->val.vbool;
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return 0;
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}
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static const struct devlink_param qed_devlink_params[] = {
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DEVLINK_PARAM_DRIVER(QED_DEVLINK_PARAM_ID_IWARP_CMT,
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"iwarp_cmt", DEVLINK_PARAM_TYPE_BOOL,
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BIT(DEVLINK_PARAM_CMODE_RUNTIME),
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qed_dl_param_get, qed_dl_param_set, NULL),
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};
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static int qed_devlink_info_get(struct devlink *devlink,
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struct devlink_info_req *req,
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struct netlink_ext_ack *extack)
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{
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struct qed_devlink *qed_dl = devlink_priv(devlink);
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struct qed_dev *cdev = qed_dl->cdev;
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struct qed_dev_info *dev_info;
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char buf[100];
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int err;
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dev_info = &cdev->common_dev_info;
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err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
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if (err)
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return err;
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memcpy(buf, cdev->hwfns[0].hw_info.part_num, sizeof(cdev->hwfns[0].hw_info.part_num));
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buf[sizeof(cdev->hwfns[0].hw_info.part_num)] = 0;
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if (buf[0]) {
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err = devlink_info_board_serial_number_put(req, buf);
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if (err)
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return err;
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}
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snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
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GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_3),
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GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_2),
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GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_1),
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GET_MFW_FIELD(dev_info->mfw_rev, QED_MFW_VERSION_0));
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err = devlink_info_version_stored_put(req,
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DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, buf);
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if (err)
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return err;
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snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
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dev_info->fw_major,
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dev_info->fw_minor,
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dev_info->fw_rev,
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dev_info->fw_eng);
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return devlink_info_version_running_put(req,
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DEVLINK_INFO_VERSION_GENERIC_FW_APP, buf);
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}
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static const struct devlink_ops qed_dl_ops = {
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.info_get = qed_devlink_info_get,
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};
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struct devlink *qed_devlink_register(struct qed_dev *cdev)
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{
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union devlink_param_value value;
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struct qed_devlink *qdevlink;
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struct devlink *dl;
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int rc;
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dl = devlink_alloc(&qed_dl_ops, sizeof(struct qed_devlink));
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if (!dl)
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return ERR_PTR(-ENOMEM);
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qdevlink = devlink_priv(dl);
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qdevlink->cdev = cdev;
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rc = devlink_register(dl, &cdev->pdev->dev);
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if (rc)
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goto err_free;
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rc = devlink_params_register(dl, qed_devlink_params,
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ARRAY_SIZE(qed_devlink_params));
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if (rc)
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goto err_unregister;
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value.vbool = false;
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devlink_param_driverinit_value_set(dl,
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QED_DEVLINK_PARAM_ID_IWARP_CMT,
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value);
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devlink_params_publish(dl);
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cdev->iwarp_cmt = false;
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qed_fw_reporters_create(dl);
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return dl;
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err_unregister:
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devlink_unregister(dl);
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err_free:
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devlink_free(dl);
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return ERR_PTR(rc);
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}
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void qed_devlink_unregister(struct devlink *devlink)
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{
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if (!devlink)
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return;
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qed_fw_reporters_destroy(devlink);
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devlink_params_unregister(devlink, qed_devlink_params,
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ARRAY_SIZE(qed_devlink_params));
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devlink_unregister(devlink);
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devlink_free(devlink);
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}
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