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linuxdebug/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c

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null pointer error
2024-07-16 15:50:57 +02:00
/* Broadcom NetXtreme-C/E network driver.
*
* Copyright (c) 2017 Broadcom Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*/
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
#include <net/devlink.h>
#include "bnxt_hsi.h"
#include "bnxt.h"
#include "bnxt_hwrm.h"
#include "bnxt_vfr.h"
#include "bnxt_devlink.h"
#include "bnxt_ethtool.h"
#include "bnxt_ulp.h"
#include "bnxt_ptp.h"
#include "bnxt_coredump.h"
#include "bnxt_nvm_defs.h"
static void __bnxt_fw_recover(struct bnxt *bp)
{
if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) ||
test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state))
bnxt_fw_reset(bp);
else
bnxt_fw_exception(bp);
}
static int
bnxt_dl_flash_update(struct devlink *dl,
struct devlink_flash_update_params *params,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
int rc;
if (!BNXT_PF(bp)) {
NL_SET_ERR_MSG_MOD(extack,
"flash update not supported from a VF");
return -EPERM;
}
devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0);
rc = bnxt_flash_package_from_fw_obj(bp->dev, params->fw, 0, extack);
if (!rc)
devlink_flash_update_status_notify(dl, "Flashing done", NULL, 0, 0);
else
devlink_flash_update_status_notify(dl, "Flashing failed", NULL, 0, 0);
return rc;
}
static int bnxt_hwrm_remote_dev_reset_set(struct bnxt *bp, bool remote_reset)
{
struct hwrm_func_cfg_input *req;
int rc;
if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
return -EOPNOTSUPP;
rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG);
if (rc)
return rc;
req->fid = cpu_to_le16(0xffff);
req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_HOT_RESET_IF_SUPPORT);
if (remote_reset)
req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_HOT_RESET_IF_EN_DIS);
return hwrm_req_send(bp, req);
}
static char *bnxt_health_severity_str(enum bnxt_health_severity severity)
{
switch (severity) {
case SEVERITY_NORMAL: return "normal";
case SEVERITY_WARNING: return "warning";
case SEVERITY_RECOVERABLE: return "recoverable";
case SEVERITY_FATAL: return "fatal";
default: return "unknown";
}
}
static char *bnxt_health_remedy_str(enum bnxt_health_remedy remedy)
{
switch (remedy) {
case REMEDY_DEVLINK_RECOVER: return "devlink recover";
case REMEDY_POWER_CYCLE_DEVICE: return "device power cycle";
case REMEDY_POWER_CYCLE_HOST: return "host power cycle";
case REMEDY_FW_UPDATE: return "update firmware";
case REMEDY_HW_REPLACE: return "replace hardware";
default: return "unknown";
}
}
static int bnxt_fw_diagnose(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = devlink_health_reporter_priv(reporter);
struct bnxt_fw_health *h = bp->fw_health;
u32 fw_status, fw_resets;
int rc;
if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
return devlink_fmsg_string_pair_put(fmsg, "Status", "recovering");
if (!h->status_reliable)
return devlink_fmsg_string_pair_put(fmsg, "Status", "unknown");
mutex_lock(&h->lock);
fw_status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
if (BNXT_FW_IS_BOOTING(fw_status)) {
rc = devlink_fmsg_string_pair_put(fmsg, "Status", "initializing");
if (rc)
goto unlock;
} else if (h->severity || fw_status != BNXT_FW_STATUS_HEALTHY) {
if (!h->severity) {
h->severity = SEVERITY_FATAL;
h->remedy = REMEDY_POWER_CYCLE_DEVICE;
h->diagnoses++;
devlink_health_report(h->fw_reporter,
"FW error diagnosed", h);
}
rc = devlink_fmsg_string_pair_put(fmsg, "Status", "error");
if (rc)
goto unlock;
rc = devlink_fmsg_u32_pair_put(fmsg, "Syndrome", fw_status);
if (rc)
goto unlock;
} else {
rc = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
if (rc)
goto unlock;
}
rc = devlink_fmsg_string_pair_put(fmsg, "Severity",
bnxt_health_severity_str(h->severity));
if (rc)
goto unlock;
if (h->severity) {
rc = devlink_fmsg_string_pair_put(fmsg, "Remedy",
bnxt_health_remedy_str(h->remedy));
if (rc)
goto unlock;
if (h->remedy == REMEDY_DEVLINK_RECOVER) {
rc = devlink_fmsg_string_pair_put(fmsg, "Impact",
"traffic+ntuple_cfg");
if (rc)
goto unlock;
}
}
unlock:
mutex_unlock(&h->lock);
if (rc || !h->resets_reliable)
return rc;
fw_resets = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
rc = devlink_fmsg_u32_pair_put(fmsg, "Resets", fw_resets);
if (rc)
return rc;
rc = devlink_fmsg_u32_pair_put(fmsg, "Arrests", h->arrests);
if (rc)
return rc;
rc = devlink_fmsg_u32_pair_put(fmsg, "Survivals", h->survivals);
if (rc)
return rc;
rc = devlink_fmsg_u32_pair_put(fmsg, "Discoveries", h->discoveries);
if (rc)
return rc;
rc = devlink_fmsg_u32_pair_put(fmsg, "Fatalities", h->fatalities);
if (rc)
return rc;
return devlink_fmsg_u32_pair_put(fmsg, "Diagnoses", h->diagnoses);
}
static int bnxt_fw_dump(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg, void *priv_ctx,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = devlink_health_reporter_priv(reporter);
u32 dump_len;
void *data;
int rc;
/* TODO: no firmware dump support in devlink_health_report() context */
if (priv_ctx)
return -EOPNOTSUPP;
dump_len = bnxt_get_coredump_length(bp, BNXT_DUMP_LIVE);
if (!dump_len)
return -EIO;
data = vmalloc(dump_len);
if (!data)
return -ENOMEM;
rc = bnxt_get_coredump(bp, BNXT_DUMP_LIVE, data, &dump_len);
if (!rc) {
rc = devlink_fmsg_pair_nest_start(fmsg, "core");
if (rc)
goto exit;
rc = devlink_fmsg_binary_pair_put(fmsg, "data", data, dump_len);
if (rc)
goto exit;
rc = devlink_fmsg_u32_pair_put(fmsg, "size", dump_len);
if (rc)
goto exit;
rc = devlink_fmsg_pair_nest_end(fmsg);
}
exit:
vfree(data);
return rc;
}
static int bnxt_fw_recover(struct devlink_health_reporter *reporter,
void *priv_ctx,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = devlink_health_reporter_priv(reporter);
if (bp->fw_health->severity == SEVERITY_FATAL)
return -ENODEV;
set_bit(BNXT_STATE_RECOVER, &bp->state);
__bnxt_fw_recover(bp);
return -EINPROGRESS;
}
static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
.name = "fw",
.diagnose = bnxt_fw_diagnose,
.dump = bnxt_fw_dump,
.recover = bnxt_fw_recover,
};
static struct devlink_health_reporter *
__bnxt_dl_reporter_create(struct bnxt *bp,
const struct devlink_health_reporter_ops *ops)
{
struct devlink_health_reporter *reporter;
reporter = devlink_health_reporter_create(bp->dl, ops, 0, bp);
if (IS_ERR(reporter)) {
netdev_warn(bp->dev, "Failed to create %s health reporter, rc = %ld\n",
ops->name, PTR_ERR(reporter));
return NULL;
}
return reporter;
}
void bnxt_dl_fw_reporters_create(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
if (fw_health && !fw_health->fw_reporter)
fw_health->fw_reporter = __bnxt_dl_reporter_create(bp, &bnxt_dl_fw_reporter_ops);
}
void bnxt_dl_fw_reporters_destroy(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
if (fw_health && fw_health->fw_reporter) {
devlink_health_reporter_destroy(fw_health->fw_reporter);
fw_health->fw_reporter = NULL;
}
}
void bnxt_devlink_health_fw_report(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
int rc;
if (!fw_health)
return;
if (!fw_health->fw_reporter) {
__bnxt_fw_recover(bp);
return;
}
mutex_lock(&fw_health->lock);
fw_health->severity = SEVERITY_RECOVERABLE;
fw_health->remedy = REMEDY_DEVLINK_RECOVER;
mutex_unlock(&fw_health->lock);
rc = devlink_health_report(fw_health->fw_reporter, "FW error reported",
fw_health);
if (rc == -ECANCELED)
__bnxt_fw_recover(bp);
}
void bnxt_dl_health_fw_status_update(struct bnxt *bp, bool healthy)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
u8 state;
mutex_lock(&fw_health->lock);
if (healthy) {
fw_health->severity = SEVERITY_NORMAL;
state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
} else {
fw_health->severity = SEVERITY_FATAL;
fw_health->remedy = REMEDY_POWER_CYCLE_DEVICE;
state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
}
mutex_unlock(&fw_health->lock);
devlink_health_reporter_state_update(fw_health->fw_reporter, state);
}
void bnxt_dl_health_fw_recovery_done(struct bnxt *bp)
{
struct bnxt_dl *dl = devlink_priv(bp->dl);
devlink_health_reporter_recovery_done(bp->fw_health->fw_reporter);
bnxt_hwrm_remote_dev_reset_set(bp, dl->remote_reset);
}
static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
struct netlink_ext_ack *extack);
static void
bnxt_dl_livepatch_report_err(struct bnxt *bp, struct netlink_ext_ack *extack,
struct hwrm_fw_livepatch_output *resp)
{
int err = ((struct hwrm_err_output *)resp)->cmd_err;
switch (err) {
case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_OPCODE:
netdev_err(bp->dev, "Illegal live patch opcode");
NL_SET_ERR_MSG_MOD(extack, "Invalid opcode");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_NOT_SUPPORTED:
NL_SET_ERR_MSG_MOD(extack, "Live patch operation not supported");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_NOT_INSTALLED:
NL_SET_ERR_MSG_MOD(extack, "Live patch not found");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_NOT_PATCHED:
NL_SET_ERR_MSG_MOD(extack,
"Live patch deactivation failed. Firmware not patched.");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_AUTH_FAIL:
NL_SET_ERR_MSG_MOD(extack, "Live patch not authenticated");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_HEADER:
NL_SET_ERR_MSG_MOD(extack, "Incompatible live patch");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_INVALID_SIZE:
NL_SET_ERR_MSG_MOD(extack, "Live patch has invalid size");
break;
case FW_LIVEPATCH_CMD_ERR_CODE_ALREADY_PATCHED:
NL_SET_ERR_MSG_MOD(extack, "Live patch already applied");
break;
default:
netdev_err(bp->dev, "Unexpected live patch error: %d\n", err);
NL_SET_ERR_MSG_MOD(extack, "Failed to activate live patch");
break;
}
}
/* Live patch status in NVM */
#define BNXT_LIVEPATCH_NOT_INSTALLED 0
#define BNXT_LIVEPATCH_INSTALLED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL
#define BNXT_LIVEPATCH_REMOVED FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE
#define BNXT_LIVEPATCH_MASK (FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL | \
FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE)
#define BNXT_LIVEPATCH_ACTIVATED BNXT_LIVEPATCH_MASK
#define BNXT_LIVEPATCH_STATE(flags) ((flags) & BNXT_LIVEPATCH_MASK)
static int
bnxt_dl_livepatch_activate(struct bnxt *bp, struct netlink_ext_ack *extack)
{
struct hwrm_fw_livepatch_query_output *query_resp;
struct hwrm_fw_livepatch_query_input *query_req;
struct hwrm_fw_livepatch_output *patch_resp;
struct hwrm_fw_livepatch_input *patch_req;
u16 flags, live_patch_state;
bool activated = false;
u32 installed = 0;
u8 target;
int rc;
if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH) {
NL_SET_ERR_MSG_MOD(extack, "Device does not support live patch");
return -EOPNOTSUPP;
}
rc = hwrm_req_init(bp, query_req, HWRM_FW_LIVEPATCH_QUERY);
if (rc)
return rc;
query_resp = hwrm_req_hold(bp, query_req);
rc = hwrm_req_init(bp, patch_req, HWRM_FW_LIVEPATCH);
if (rc) {
hwrm_req_drop(bp, query_req);
return rc;
}
patch_req->loadtype = FW_LIVEPATCH_REQ_LOADTYPE_NVM_INSTALL;
patch_resp = hwrm_req_hold(bp, patch_req);
for (target = 1; target <= FW_LIVEPATCH_REQ_FW_TARGET_LAST; target++) {
query_req->fw_target = target;
rc = hwrm_req_send(bp, query_req);
if (rc) {
NL_SET_ERR_MSG_MOD(extack, "Failed to query packages");
break;
}
flags = le16_to_cpu(query_resp->status_flags);
live_patch_state = BNXT_LIVEPATCH_STATE(flags);
if (live_patch_state == BNXT_LIVEPATCH_NOT_INSTALLED)
continue;
if (live_patch_state == BNXT_LIVEPATCH_ACTIVATED) {
activated = true;
continue;
}
if (live_patch_state == BNXT_LIVEPATCH_INSTALLED)
patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_ACTIVATE;
else if (live_patch_state == BNXT_LIVEPATCH_REMOVED)
patch_req->opcode = FW_LIVEPATCH_REQ_OPCODE_DEACTIVATE;
patch_req->fw_target = target;
rc = hwrm_req_send(bp, patch_req);
if (rc) {
bnxt_dl_livepatch_report_err(bp, extack, patch_resp);
break;
}
installed++;
}
if (!rc && !installed) {
if (activated) {
NL_SET_ERR_MSG_MOD(extack, "Live patch already activated");
rc = -EEXIST;
} else {
NL_SET_ERR_MSG_MOD(extack, "No live patches found");
rc = -ENOENT;
}
}
hwrm_req_drop(bp, query_req);
hwrm_req_drop(bp, patch_req);
return rc;
}
static int bnxt_dl_reload_down(struct devlink *dl, bool netns_change,
enum devlink_reload_action action,
enum devlink_reload_limit limit,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
int rc = 0;
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
rtnl_lock();
if (bnxt_sriov_cfg(bp)) {
NL_SET_ERR_MSG_MOD(extack,
"reload is unsupported while VFs are allocated or being configured");
rtnl_unlock();
return -EOPNOTSUPP;
}
if (bp->dev->reg_state == NETREG_UNREGISTERED) {
rtnl_unlock();
return -ENODEV;
}
bnxt_ulp_stop(bp);
if (netif_running(bp->dev)) {
rc = bnxt_close_nic(bp, true, true);
if (rc) {
NL_SET_ERR_MSG_MOD(extack, "Failed to close");
dev_close(bp->dev);
rtnl_unlock();
break;
}
}
bnxt_vf_reps_free(bp);
rc = bnxt_hwrm_func_drv_unrgtr(bp);
if (rc) {
NL_SET_ERR_MSG_MOD(extack, "Failed to deregister");
if (netif_running(bp->dev))
dev_close(bp->dev);
rtnl_unlock();
break;
}
bnxt_cancel_reservations(bp, false);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
break;
}
case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
return bnxt_dl_livepatch_activate(bp, extack);
if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET) {
NL_SET_ERR_MSG_MOD(extack, "Device not capable, requires reboot");
return -EOPNOTSUPP;
}
if (!bnxt_hwrm_reset_permitted(bp)) {
NL_SET_ERR_MSG_MOD(extack,
"Reset denied by firmware, it may be inhibited by remote driver");
return -EPERM;
}
rtnl_lock();
if (bp->dev->reg_state == NETREG_UNREGISTERED) {
rtnl_unlock();
return -ENODEV;
}
if (netif_running(bp->dev))
set_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
rc = bnxt_hwrm_firmware_reset(bp->dev,
FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP,
FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP,
FW_RESET_REQ_FLAGS_RESET_GRACEFUL |
FW_RESET_REQ_FLAGS_FW_ACTIVATION);
if (rc) {
NL_SET_ERR_MSG_MOD(extack, "Failed to activate firmware");
clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
rtnl_unlock();
}
break;
}
default:
rc = -EOPNOTSUPP;
}
return rc;
}
static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action action,
enum devlink_reload_limit limit, u32 *actions_performed,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
int rc = 0;
*actions_performed = 0;
switch (action) {
case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: {
bnxt_fw_init_one(bp);
bnxt_vf_reps_alloc(bp);
if (netif_running(bp->dev))
rc = bnxt_open_nic(bp, true, true);
bnxt_ulp_start(bp, rc);
if (!rc) {
bnxt_reenable_sriov(bp);
bnxt_ptp_reapply_pps(bp);
}
break;
}
case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: {
unsigned long start = jiffies;
unsigned long timeout = start + BNXT_DFLT_FW_RST_MAX_DSECS * HZ / 10;
if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
break;
if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
timeout = start + bp->fw_health->normal_func_wait_dsecs * HZ / 10;
if (!netif_running(bp->dev))
NL_SET_ERR_MSG_MOD(extack,
"Device is closed, not waiting for reset notice that will never come");
rtnl_unlock();
while (test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) {
if (time_after(jiffies, timeout)) {
NL_SET_ERR_MSG_MOD(extack, "Activation incomplete");
rc = -ETIMEDOUT;
break;
}
if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
NL_SET_ERR_MSG_MOD(extack, "Activation aborted");
rc = -ENODEV;
break;
}
msleep(50);
}
rtnl_lock();
if (!rc)
*actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
break;
}
default:
return -EOPNOTSUPP;
}
if (!rc) {
bnxt_print_device_info(bp);
if (netif_running(bp->dev)) {
mutex_lock(&bp->link_lock);
bnxt_report_link(bp);
mutex_unlock(&bp->link_lock);
}
*actions_performed |= BIT(action);
} else if (netif_running(bp->dev)) {
dev_close(bp->dev);
}
rtnl_unlock();
return rc;
}
static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
{
bool rc = false;
u32 datalen;
u16 index;
u8 *buf;
if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
&index, NULL, &datalen) || !datalen) {
NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
return false;
}
buf = kzalloc(datalen, GFP_KERNEL);
if (!buf) {
NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test");
return false;
}
if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
goto done;
}
if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
goto done;
}
rc = true;
done:
kfree(buf);
return rc;
}
static bool bnxt_dl_selftest_check(struct devlink *dl, unsigned int id,
struct netlink_ext_ack *extack)
{
return id == DEVLINK_ATTR_SELFTEST_ID_FLASH;
}
static enum devlink_selftest_status bnxt_dl_selftest_run(struct devlink *dl,
unsigned int id,
struct netlink_ext_ack *extack)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
if (id == DEVLINK_ATTR_SELFTEST_ID_FLASH)
return bnxt_nvm_test(bp, extack) ?
DEVLINK_SELFTEST_STATUS_PASS :
DEVLINK_SELFTEST_STATUS_FAIL;
return DEVLINK_SELFTEST_STATUS_SKIP;
}
static const struct devlink_ops bnxt_dl_ops = {
#ifdef CONFIG_BNXT_SRIOV
.eswitch_mode_set = bnxt_dl_eswitch_mode_set,
.eswitch_mode_get = bnxt_dl_eswitch_mode_get,
#endif /* CONFIG_BNXT_SRIOV */
.info_get = bnxt_dl_info_get,
.flash_update = bnxt_dl_flash_update,
.reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
.reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
.reload_down = bnxt_dl_reload_down,
.reload_up = bnxt_dl_reload_up,
.selftest_check = bnxt_dl_selftest_check,
.selftest_run = bnxt_dl_selftest_run,
};
static const struct devlink_ops bnxt_vf_dl_ops;
enum bnxt_dl_param_id {
BNXT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
};
static const struct bnxt_dl_nvm_param nvm_params[] = {
{DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, NVM_OFF_ENABLE_SRIOV,
BNXT_NVM_SHARED_CFG, 1, 1},
{DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, NVM_OFF_IGNORE_ARI,
BNXT_NVM_SHARED_CFG, 1, 1},
{DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
NVM_OFF_MSIX_VEC_PER_PF_MAX, BNXT_NVM_SHARED_CFG, 10, 4},
{DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7, 4},
{BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
BNXT_NVM_SHARED_CFG, 1, 1},
};
union bnxt_nvm_data {
u8 val8;
__le32 val32;
};
static void bnxt_copy_to_nvm_data(union bnxt_nvm_data *dst,
union devlink_param_value *src,
int nvm_num_bits, int dl_num_bytes)
{
u32 val32 = 0;
if (nvm_num_bits == 1) {
dst->val8 = src->vbool;
return;
}
if (dl_num_bytes == 4)
val32 = src->vu32;
else if (dl_num_bytes == 2)
val32 = (u32)src->vu16;
else if (dl_num_bytes == 1)
val32 = (u32)src->vu8;
dst->val32 = cpu_to_le32(val32);
}
static void bnxt_copy_from_nvm_data(union devlink_param_value *dst,
union bnxt_nvm_data *src,
int nvm_num_bits, int dl_num_bytes)
{
u32 val32;
if (nvm_num_bits == 1) {
dst->vbool = src->val8;
return;
}
val32 = le32_to_cpu(src->val32);
if (dl_num_bytes == 4)
dst->vu32 = val32;
else if (dl_num_bytes == 2)
dst->vu16 = (u16)val32;
else if (dl_num_bytes == 1)
dst->vu8 = (u8)val32;
}
static int bnxt_hwrm_get_nvm_cfg_ver(struct bnxt *bp, u32 *nvm_cfg_ver)
{
struct hwrm_nvm_get_variable_input *req;
u16 bytes = BNXT_NVM_CFG_VER_BYTES;
u16 bits = BNXT_NVM_CFG_VER_BITS;
union devlink_param_value ver;
union bnxt_nvm_data *data;
dma_addr_t data_dma_addr;
int rc, i = 2;
u16 dim = 1;
rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
if (rc)
return rc;
data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
if (!data) {
rc = -ENOMEM;
goto exit;
}
/* earlier devices present as an array of raw bytes */
if (!BNXT_CHIP_P5(bp)) {
dim = 0;
i = 0;
bits *= 3; /* array of 3 version components */
bytes *= 4; /* copy whole word */
}
hwrm_req_hold(bp, req);
req->dest_data_addr = cpu_to_le64(data_dma_addr);
req->data_len = cpu_to_le16(bits);
req->option_num = cpu_to_le16(NVM_OFF_NVM_CFG_VER);
req->dimensions = cpu_to_le16(dim);
while (i >= 0) {
req->index_0 = cpu_to_le16(i--);
rc = hwrm_req_send_silent(bp, req);
if (rc)
goto exit;
bnxt_copy_from_nvm_data(&ver, data, bits, bytes);
if (BNXT_CHIP_P5(bp)) {
*nvm_cfg_ver <<= 8;
*nvm_cfg_ver |= ver.vu8;
} else {
*nvm_cfg_ver = ver.vu32;
}
}
exit:
hwrm_req_drop(bp, req);
return rc;
}
static int bnxt_dl_info_put(struct bnxt *bp, struct devlink_info_req *req,
enum bnxt_dl_version_type type, const char *key,
char *buf)
{
if (!strlen(buf))
return 0;
if ((bp->flags & BNXT_FLAG_CHIP_P5) &&
(!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI) ||
!strcmp(key, DEVLINK_INFO_VERSION_GENERIC_FW_ROCE)))
return 0;
switch (type) {
case BNXT_VERSION_FIXED:
return devlink_info_version_fixed_put(req, key, buf);
case BNXT_VERSION_RUNNING:
return devlink_info_version_running_put(req, key, buf);
case BNXT_VERSION_STORED:
return devlink_info_version_stored_put(req, key, buf);
}
return 0;
}
#define BNXT_FW_SRT_PATCH "fw.srt.patch"
#define BNXT_FW_CRT_PATCH "fw.crt.patch"
static int bnxt_dl_livepatch_info_put(struct bnxt *bp,
struct devlink_info_req *req,
const char *key)
{
struct hwrm_fw_livepatch_query_input *query;
struct hwrm_fw_livepatch_query_output *resp;
u16 flags;
int rc;
if (~bp->fw_cap & BNXT_FW_CAP_LIVEPATCH)
return 0;
rc = hwrm_req_init(bp, query, HWRM_FW_LIVEPATCH_QUERY);
if (rc)
return rc;
if (!strcmp(key, BNXT_FW_SRT_PATCH))
query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_SECURE_FW;
else if (!strcmp(key, BNXT_FW_CRT_PATCH))
query->fw_target = FW_LIVEPATCH_QUERY_REQ_FW_TARGET_COMMON_FW;
else
goto exit;
resp = hwrm_req_hold(bp, query);
rc = hwrm_req_send(bp, query);
if (rc)
goto exit;
flags = le16_to_cpu(resp->status_flags);
if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_ACTIVE) {
resp->active_ver[sizeof(resp->active_ver) - 1] = '\0';
rc = devlink_info_version_running_put(req, key, resp->active_ver);
if (rc)
goto exit;
}
if (flags & FW_LIVEPATCH_QUERY_RESP_STATUS_FLAGS_INSTALL) {
resp->install_ver[sizeof(resp->install_ver) - 1] = '\0';
rc = devlink_info_version_stored_put(req, key, resp->install_ver);
if (rc)
goto exit;
}
exit:
hwrm_req_drop(bp, query);
return rc;
}
#define HWRM_FW_VER_STR_LEN 16
static int bnxt_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct hwrm_nvm_get_dev_info_output nvm_dev_info;
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
struct hwrm_ver_get_output *ver_resp;
char mgmt_ver[FW_VER_STR_LEN];
char roce_ver[FW_VER_STR_LEN];
char ncsi_ver[FW_VER_STR_LEN];
char buf[32];
u32 ver = 0;
int rc;
rc = devlink_info_driver_name_put(req, DRV_MODULE_NAME);
if (rc)
return rc;
if (BNXT_PF(bp) && (bp->flags & BNXT_FLAG_DSN_VALID)) {
sprintf(buf, "%02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X",
bp->dsn[7], bp->dsn[6], bp->dsn[5], bp->dsn[4],
bp->dsn[3], bp->dsn[2], bp->dsn[1], bp->dsn[0]);
rc = devlink_info_serial_number_put(req, buf);
if (rc)
return rc;
}
if (strlen(bp->board_serialno)) {
rc = devlink_info_board_serial_number_put(req, bp->board_serialno);
if (rc)
return rc;
}
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
bp->board_partno);
if (rc)
return rc;
sprintf(buf, "%X", bp->chip_num);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
DEVLINK_INFO_VERSION_GENERIC_ASIC_ID, buf);
if (rc)
return rc;
ver_resp = &bp->ver_resp;
sprintf(buf, "%c%d", 'A' + ver_resp->chip_rev, ver_resp->chip_metal);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_FIXED,
DEVLINK_INFO_VERSION_GENERIC_ASIC_REV, buf);
if (rc)
return rc;
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
bp->nvm_cfg_ver);
if (rc)
return rc;
buf[0] = 0;
strncat(buf, ver_resp->active_pkg_name, HWRM_FW_VER_STR_LEN);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
DEVLINK_INFO_VERSION_GENERIC_FW, buf);
if (rc)
return rc;
if (BNXT_PF(bp) && !bnxt_hwrm_get_nvm_cfg_ver(bp, &ver)) {
sprintf(buf, "%d.%d.%d", (ver >> 16) & 0xff, (ver >> 8) & 0xff,
ver & 0xff);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
DEVLINK_INFO_VERSION_GENERIC_FW_PSID,
buf);
if (rc)
return rc;
}
if (ver_resp->flags & VER_GET_RESP_FLAGS_EXT_VER_AVAIL) {
snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
ver_resp->hwrm_fw_major, ver_resp->hwrm_fw_minor,
ver_resp->hwrm_fw_build, ver_resp->hwrm_fw_patch);
snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
ver_resp->mgmt_fw_major, ver_resp->mgmt_fw_minor,
ver_resp->mgmt_fw_build, ver_resp->mgmt_fw_patch);
snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
ver_resp->roce_fw_major, ver_resp->roce_fw_minor,
ver_resp->roce_fw_build, ver_resp->roce_fw_patch);
} else {
snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
ver_resp->hwrm_fw_maj_8b, ver_resp->hwrm_fw_min_8b,
ver_resp->hwrm_fw_bld_8b, ver_resp->hwrm_fw_rsvd_8b);
snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
ver_resp->mgmt_fw_maj_8b, ver_resp->mgmt_fw_min_8b,
ver_resp->mgmt_fw_bld_8b, ver_resp->mgmt_fw_rsvd_8b);
snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
ver_resp->roce_fw_maj_8b, ver_resp->roce_fw_min_8b,
ver_resp->roce_fw_bld_8b, ver_resp->roce_fw_rsvd_8b);
}
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
if (rc)
return rc;
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
bp->hwrm_ver_supp);
if (rc)
return rc;
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
if (rc)
return rc;
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_RUNNING,
DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
if (rc)
return rc;
rc = bnxt_hwrm_nvm_get_dev_info(bp, &nvm_dev_info);
if (rc ||
!(nvm_dev_info.flags & NVM_GET_DEV_INFO_RESP_FLAGS_FW_VER_VALID)) {
if (!bnxt_get_pkginfo(bp->dev, buf, sizeof(buf)))
return bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
DEVLINK_INFO_VERSION_GENERIC_FW,
buf);
return 0;
}
buf[0] = 0;
strncat(buf, nvm_dev_info.pkg_name, HWRM_FW_VER_STR_LEN);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
DEVLINK_INFO_VERSION_GENERIC_FW, buf);
if (rc)
return rc;
snprintf(mgmt_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
nvm_dev_info.hwrm_fw_major, nvm_dev_info.hwrm_fw_minor,
nvm_dev_info.hwrm_fw_build, nvm_dev_info.hwrm_fw_patch);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);
if (rc)
return rc;
snprintf(ncsi_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
nvm_dev_info.mgmt_fw_major, nvm_dev_info.mgmt_fw_minor,
nvm_dev_info.mgmt_fw_build, nvm_dev_info.mgmt_fw_patch);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, ncsi_ver);
if (rc)
return rc;
snprintf(roce_ver, FW_VER_STR_LEN, "%d.%d.%d.%d",
nvm_dev_info.roce_fw_major, nvm_dev_info.roce_fw_minor,
nvm_dev_info.roce_fw_build, nvm_dev_info.roce_fw_patch);
rc = bnxt_dl_info_put(bp, req, BNXT_VERSION_STORED,
DEVLINK_INFO_VERSION_GENERIC_FW_ROCE, roce_ver);
if (rc)
return rc;
if (BNXT_CHIP_P5(bp)) {
rc = bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_SRT_PATCH);
if (rc)
return rc;
}
return bnxt_dl_livepatch_info_put(bp, req, BNXT_FW_CRT_PATCH);
}
static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
union devlink_param_value *val)
{
struct hwrm_nvm_get_variable_input *req = msg;
struct bnxt_dl_nvm_param nvm_param;
struct hwrm_err_output *resp;
union bnxt_nvm_data *data;
dma_addr_t data_dma_addr;
int idx = 0, rc, i;
/* Get/Set NVM CFG parameter is supported only on PFs */
if (BNXT_VF(bp)) {
hwrm_req_drop(bp, req);
return -EPERM;
}
for (i = 0; i < ARRAY_SIZE(nvm_params); i++) {
if (nvm_params[i].id == param_id) {
nvm_param = nvm_params[i];
break;
}
}
if (i == ARRAY_SIZE(nvm_params)) {
hwrm_req_drop(bp, req);
return -EOPNOTSUPP;
}
if (nvm_param.dir_type == BNXT_NVM_PORT_CFG)
idx = bp->pf.port_id;
else if (nvm_param.dir_type == BNXT_NVM_FUNC_CFG)
idx = bp->pf.fw_fid - BNXT_FIRST_PF_FID;
data = hwrm_req_dma_slice(bp, req, sizeof(*data), &data_dma_addr);
if (!data) {
hwrm_req_drop(bp, req);
return -ENOMEM;
}
req->dest_data_addr = cpu_to_le64(data_dma_addr);
req->data_len = cpu_to_le16(nvm_param.nvm_num_bits);
req->option_num = cpu_to_le16(nvm_param.offset);
req->index_0 = cpu_to_le16(idx);
if (idx)
req->dimensions = cpu_to_le16(1);
resp = hwrm_req_hold(bp, req);
if (req->req_type == cpu_to_le16(HWRM_NVM_SET_VARIABLE)) {
bnxt_copy_to_nvm_data(data, val, nvm_param.nvm_num_bits,
nvm_param.dl_num_bytes);
rc = hwrm_req_send(bp, msg);
} else {
rc = hwrm_req_send_silent(bp, msg);
if (!rc) {
bnxt_copy_from_nvm_data(val, data,
nvm_param.nvm_num_bits,
nvm_param.dl_num_bytes);
} else {
if (resp->cmd_err ==
NVM_GET_VARIABLE_CMD_ERR_CODE_VAR_NOT_EXIST)
rc = -EOPNOTSUPP;
}
}
hwrm_req_drop(bp, req);
if (rc == -EACCES)
netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
return rc;
}
static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
struct hwrm_nvm_get_variable_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_NVM_GET_VARIABLE);
if (rc)
return rc;
rc = bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
if (!rc && id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
ctx->val.vbool = !ctx->val.vbool;
return rc;
}
static int bnxt_dl_nvm_param_set(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
struct hwrm_nvm_set_variable_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_NVM_SET_VARIABLE);
if (rc)
return rc;
if (id == BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK)
ctx->val.vbool = !ctx->val.vbool;
return bnxt_hwrm_nvm_req(bp, id, req, &ctx->val);
}
static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
int max_val = -1;
if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX)
max_val = BNXT_MSIX_VEC_MAX;
if (id == DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN)
max_val = BNXT_MSIX_VEC_MIN_MAX;
if (val.vu32 > max_val) {
NL_SET_ERR_MSG_MOD(extack, "MSIX value is exceeding the range");
return -EINVAL;
}
return 0;
}
static int bnxt_remote_dev_reset_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
return -EOPNOTSUPP;
ctx->val.vbool = bnxt_dl_get_remote_reset(dl);
return 0;
}
static int bnxt_remote_dev_reset_set(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct bnxt *bp = bnxt_get_bp_from_dl(dl);
int rc;
rc = bnxt_hwrm_remote_dev_reset_set(bp, ctx->val.vbool);
if (rc)
return rc;
bnxt_dl_set_remote_reset(dl, ctx->val.vbool);
return rc;
}
static const struct devlink_param bnxt_dl_params[] = {
DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
BIT(DEVLINK_PARAM_CMODE_PERMANENT),
bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
NULL),
DEVLINK_PARAM_GENERIC(IGNORE_ARI,
BIT(DEVLINK_PARAM_CMODE_PERMANENT),
bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
NULL),
DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MAX,
BIT(DEVLINK_PARAM_CMODE_PERMANENT),
bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
bnxt_dl_msix_validate),
DEVLINK_PARAM_GENERIC(MSIX_VEC_PER_PF_MIN,
BIT(DEVLINK_PARAM_CMODE_PERMANENT),
bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
bnxt_dl_msix_validate),
DEVLINK_PARAM_DRIVER(BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK,
"gre_ver_check", DEVLINK_PARAM_TYPE_BOOL,
BIT(DEVLINK_PARAM_CMODE_PERMANENT),
bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
NULL),
/* keep REMOTE_DEV_RESET last, it is excluded based on caps */
DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET,
BIT(DEVLINK_PARAM_CMODE_RUNTIME),
bnxt_remote_dev_reset_get,
bnxt_remote_dev_reset_set, NULL),
};
static int bnxt_dl_params_register(struct bnxt *bp)
{
int num_params = ARRAY_SIZE(bnxt_dl_params);
int rc;
if (bp->hwrm_spec_code < 0x10600)
return 0;
if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
num_params--;
rc = devlink_params_register(bp->dl, bnxt_dl_params, num_params);
if (rc)
netdev_warn(bp->dev, "devlink_params_register failed. rc=%d\n",
rc);
return rc;
}
static void bnxt_dl_params_unregister(struct bnxt *bp)
{
int num_params = ARRAY_SIZE(bnxt_dl_params);
if (bp->hwrm_spec_code < 0x10600)
return;
if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
num_params--;
devlink_params_unregister(bp->dl, bnxt_dl_params, num_params);
}
int bnxt_dl_register(struct bnxt *bp)
{
const struct devlink_ops *devlink_ops;
struct devlink_port_attrs attrs = {};
struct bnxt_dl *bp_dl;
struct devlink *dl;
int rc;
if (BNXT_PF(bp))
devlink_ops = &bnxt_dl_ops;
else
devlink_ops = &bnxt_vf_dl_ops;
dl = devlink_alloc(devlink_ops, sizeof(struct bnxt_dl), &bp->pdev->dev);
if (!dl) {
netdev_warn(bp->dev, "devlink_alloc failed\n");
return -ENOMEM;
}
bp->dl = dl;
bp_dl = devlink_priv(dl);
bp_dl->bp = bp;
bnxt_dl_set_remote_reset(dl, true);
/* Add switchdev eswitch mode setting, if SRIOV supported */
if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV) &&
bp->hwrm_spec_code > 0x10803)
bp->eswitch_mode = DEVLINK_ESWITCH_MODE_LEGACY;
if (!BNXT_PF(bp))
goto out;
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
attrs.phys.port_number = bp->pf.port_id;
memcpy(attrs.switch_id.id, bp->dsn, sizeof(bp->dsn));
attrs.switch_id.id_len = sizeof(bp->dsn);
devlink_port_attrs_set(&bp->dl_port, &attrs);
rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
if (rc) {
netdev_err(bp->dev, "devlink_port_register failed\n");
goto err_dl_free;
}
rc = bnxt_dl_params_register(bp);
if (rc)
goto err_dl_port_unreg;
devlink_set_features(dl, DEVLINK_F_RELOAD);
out:
devlink_register(dl);
return 0;
err_dl_port_unreg:
devlink_port_unregister(&bp->dl_port);
err_dl_free:
devlink_free(dl);
return rc;
}
void bnxt_dl_unregister(struct bnxt *bp)
{
struct devlink *dl = bp->dl;
devlink_unregister(dl);
if (BNXT_PF(bp)) {
bnxt_dl_params_unregister(bp);
devlink_port_unregister(&bp->dl_port);
}
devlink_free(dl);
}