From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- net/ethtool/mm.c | 562 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 562 insertions(+) create mode 100644 net/ethtool/mm.c (limited to 'net/ethtool/mm.c') diff --git a/net/ethtool/mm.c b/net/ethtool/mm.c new file mode 100644 index 000000000..2d10e2a13 --- /dev/null +++ b/net/ethtool/mm.c @@ -0,0 +1,562 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2022-2025 NXP + * Copyright 2024 Furong Xu <0x1207@gmail.com> + */ +#include "common.h" +#include "netlink.h" + +struct mm_req_info { + struct ethnl_req_info base; +}; + +struct mm_reply_data { + struct ethnl_reply_data base; + struct ethtool_mm_state state; + struct ethtool_mm_stats stats; +}; + +#define MM_REPDATA(__reply_base) \ + container_of(__reply_base, struct mm_reply_data, base) + +#define ETHTOOL_MM_STAT_CNT \ + (__ETHTOOL_A_MM_STAT_CNT - (ETHTOOL_A_MM_STAT_PAD + 1)) + +const struct nla_policy ethnl_mm_get_policy[ETHTOOL_A_MM_HEADER + 1] = { + [ETHTOOL_A_MM_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy_stats), +}; + +static int mm_prepare_data(const struct ethnl_req_info *req_base, + struct ethnl_reply_data *reply_base, + const struct genl_info *info) +{ + struct mm_reply_data *data = MM_REPDATA(reply_base); + struct net_device *dev = reply_base->dev; + const struct ethtool_ops *ops; + int ret; + + ops = dev->ethtool_ops; + + if (!ops->get_mm) + return -EOPNOTSUPP; + + ethtool_stats_init((u64 *)&data->stats, + sizeof(data->stats) / sizeof(u64)); + + ret = ethnl_ops_begin(dev); + if (ret < 0) + return ret; + + ret = ops->get_mm(dev, &data->state); + if (ret) + goto out_complete; + + if (ops->get_mm_stats && (req_base->flags & ETHTOOL_FLAG_STATS)) + ops->get_mm_stats(dev, &data->stats); + +out_complete: + ethnl_ops_complete(dev); + + return ret; +} + +static int mm_reply_size(const struct ethnl_req_info *req_base, + const struct ethnl_reply_data *reply_base) +{ + int len = 0; + + len += nla_total_size(sizeof(u8)); /* _MM_PMAC_ENABLED */ + len += nla_total_size(sizeof(u8)); /* _MM_TX_ENABLED */ + len += nla_total_size(sizeof(u8)); /* _MM_TX_ACTIVE */ + len += nla_total_size(sizeof(u8)); /* _MM_VERIFY_ENABLED */ + len += nla_total_size(sizeof(u8)); /* _MM_VERIFY_STATUS */ + len += nla_total_size(sizeof(u32)); /* _MM_VERIFY_TIME */ + len += nla_total_size(sizeof(u32)); /* _MM_MAX_VERIFY_TIME */ + len += nla_total_size(sizeof(u32)); /* _MM_TX_MIN_FRAG_SIZE */ + len += nla_total_size(sizeof(u32)); /* _MM_RX_MIN_FRAG_SIZE */ + + if (req_base->flags & ETHTOOL_FLAG_STATS) + len += nla_total_size(0) + /* _MM_STATS */ + nla_total_size_64bit(sizeof(u64)) * ETHTOOL_MM_STAT_CNT; + + return len; +} + +static int mm_put_stat(struct sk_buff *skb, u64 val, u16 attrtype) +{ + if (val == ETHTOOL_STAT_NOT_SET) + return 0; + if (nla_put_u64_64bit(skb, attrtype, val, ETHTOOL_A_MM_STAT_PAD)) + return -EMSGSIZE; + return 0; +} + +static int mm_put_stats(struct sk_buff *skb, + const struct ethtool_mm_stats *stats) +{ + struct nlattr *nest; + + nest = nla_nest_start(skb, ETHTOOL_A_MM_STATS); + if (!nest) + return -EMSGSIZE; + + if (mm_put_stat(skb, stats->MACMergeFrameAssErrorCount, + ETHTOOL_A_MM_STAT_REASSEMBLY_ERRORS) || + mm_put_stat(skb, stats->MACMergeFrameSmdErrorCount, + ETHTOOL_A_MM_STAT_SMD_ERRORS) || + mm_put_stat(skb, stats->MACMergeFrameAssOkCount, + ETHTOOL_A_MM_STAT_REASSEMBLY_OK) || + mm_put_stat(skb, stats->MACMergeFragCountRx, + ETHTOOL_A_MM_STAT_RX_FRAG_COUNT) || + mm_put_stat(skb, stats->MACMergeFragCountTx, + ETHTOOL_A_MM_STAT_TX_FRAG_COUNT) || + mm_put_stat(skb, stats->MACMergeHoldCount, + ETHTOOL_A_MM_STAT_HOLD_COUNT)) + goto err_cancel; + + nla_nest_end(skb, nest); + return 0; + +err_cancel: + nla_nest_cancel(skb, nest); + return -EMSGSIZE; +} + +static int mm_fill_reply(struct sk_buff *skb, + const struct ethnl_req_info *req_base, + const struct ethnl_reply_data *reply_base) +{ + const struct mm_reply_data *data = MM_REPDATA(reply_base); + const struct ethtool_mm_state *state = &data->state; + + if (nla_put_u8(skb, ETHTOOL_A_MM_TX_ENABLED, state->tx_enabled) || + nla_put_u8(skb, ETHTOOL_A_MM_TX_ACTIVE, state->tx_active) || + nla_put_u8(skb, ETHTOOL_A_MM_PMAC_ENABLED, state->pmac_enabled) || + nla_put_u8(skb, ETHTOOL_A_MM_VERIFY_ENABLED, state->verify_enabled) || + nla_put_u8(skb, ETHTOOL_A_MM_VERIFY_STATUS, state->verify_status) || + nla_put_u32(skb, ETHTOOL_A_MM_VERIFY_TIME, state->verify_time) || + nla_put_u32(skb, ETHTOOL_A_MM_MAX_VERIFY_TIME, state->max_verify_time) || + nla_put_u32(skb, ETHTOOL_A_MM_TX_MIN_FRAG_SIZE, state->tx_min_frag_size) || + nla_put_u32(skb, ETHTOOL_A_MM_RX_MIN_FRAG_SIZE, state->rx_min_frag_size)) + return -EMSGSIZE; + + if (req_base->flags & ETHTOOL_FLAG_STATS && + mm_put_stats(skb, &data->stats)) + return -EMSGSIZE; + + return 0; +} + +const struct nla_policy ethnl_mm_set_policy[ETHTOOL_A_MM_MAX + 1] = { + [ETHTOOL_A_MM_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy), + [ETHTOOL_A_MM_VERIFY_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1), + [ETHTOOL_A_MM_VERIFY_TIME] = NLA_POLICY_RANGE(NLA_U32, 1, 128), + [ETHTOOL_A_MM_TX_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1), + [ETHTOOL_A_MM_PMAC_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1), + [ETHTOOL_A_MM_TX_MIN_FRAG_SIZE] = NLA_POLICY_RANGE(NLA_U32, 60, 252), +}; + +static void mm_state_to_cfg(const struct ethtool_mm_state *state, + struct ethtool_mm_cfg *cfg) +{ + /* We could also compare state->verify_status against + * ETHTOOL_MM_VERIFY_STATUS_DISABLED, but state->verify_enabled + * is more like an administrative state which should be seen in + * ETHTOOL_MSG_MM_GET replies. For example, a port with verification + * disabled might be in the ETHTOOL_MM_VERIFY_STATUS_INITIAL + * if it's down. + */ + cfg->verify_enabled = state->verify_enabled; + cfg->verify_time = state->verify_time; + cfg->tx_enabled = state->tx_enabled; + cfg->pmac_enabled = state->pmac_enabled; + cfg->tx_min_frag_size = state->tx_min_frag_size; +} + +static int +ethnl_set_mm_validate(struct ethnl_req_info *req_info, struct genl_info *info) +{ + const struct ethtool_ops *ops = req_info->dev->ethtool_ops; + + return ops->get_mm && ops->set_mm ? 1 : -EOPNOTSUPP; +} + +static int ethnl_set_mm(struct ethnl_req_info *req_info, struct genl_info *info) +{ + struct netlink_ext_ack *extack = info->extack; + struct net_device *dev = req_info->dev; + struct ethtool_mm_state state = {}; + struct nlattr **tb = info->attrs; + struct ethtool_mm_cfg cfg = {}; + bool mod = false; + int ret; + + ret = dev->ethtool_ops->get_mm(dev, &state); + if (ret) + return ret; + + mm_state_to_cfg(&state, &cfg); + + ethnl_update_bool(&cfg.verify_enabled, tb[ETHTOOL_A_MM_VERIFY_ENABLED], + &mod); + ethnl_update_u32(&cfg.verify_time, tb[ETHTOOL_A_MM_VERIFY_TIME], &mod); + ethnl_update_bool(&cfg.tx_enabled, tb[ETHTOOL_A_MM_TX_ENABLED], &mod); + ethnl_update_bool(&cfg.pmac_enabled, tb[ETHTOOL_A_MM_PMAC_ENABLED], + &mod); + ethnl_update_u32(&cfg.tx_min_frag_size, + tb[ETHTOOL_A_MM_TX_MIN_FRAG_SIZE], &mod); + + if (!mod) + return 0; + + if (cfg.verify_time > state.max_verify_time) { + NL_SET_ERR_MSG_ATTR(extack, tb[ETHTOOL_A_MM_VERIFY_TIME], + "verifyTime exceeds device maximum"); + return -ERANGE; + } + + if (cfg.verify_enabled && !cfg.tx_enabled) { + NL_SET_ERR_MSG(extack, "Verification requires TX enabled"); + return -EINVAL; + } + + if (cfg.tx_enabled && !cfg.pmac_enabled) { + NL_SET_ERR_MSG(extack, "TX enabled requires pMAC enabled"); + return -EINVAL; + } + + ret = dev->ethtool_ops->set_mm(dev, &cfg, extack); + return ret < 0 ? ret : 1; +} + +const struct ethnl_request_ops ethnl_mm_request_ops = { + .request_cmd = ETHTOOL_MSG_MM_GET, + .reply_cmd = ETHTOOL_MSG_MM_GET_REPLY, + .hdr_attr = ETHTOOL_A_MM_HEADER, + .req_info_size = sizeof(struct mm_req_info), + .reply_data_size = sizeof(struct mm_reply_data), + + .prepare_data = mm_prepare_data, + .reply_size = mm_reply_size, + .fill_reply = mm_fill_reply, + + .set_validate = ethnl_set_mm_validate, + .set = ethnl_set_mm, + .set_ntf_cmd = ETHTOOL_MSG_MM_NTF, +}; + +/* Returns whether a given device supports the MAC merge layer + * (has an eMAC and a pMAC). Must be called under whichever lock + * netdev_assert_locked_ops_compat() accepts (rtnl for traditional drivers, + * the netdev instance lock for ops-locked ones) and ethnl_ops_begin(). + */ +bool __ethtool_dev_mm_supported(struct net_device *dev) +{ + const struct ethtool_ops *ops = dev->ethtool_ops; + struct ethtool_mm_state state = {}; + int ret = -EOPNOTSUPP; + + if (ops && ops->get_mm) + ret = ops->get_mm(dev, &state); + + return !ret; +} + +bool ethtool_dev_mm_supported(struct net_device *dev) +{ + const struct ethtool_ops *ops = dev->ethtool_ops; + bool supported; + int ret; + + ASSERT_RTNL(); + + if (!ops) + return false; + + ret = ethnl_ops_begin(dev); + if (ret < 0) + return false; + + supported = __ethtool_dev_mm_supported(dev); + + ethnl_ops_complete(dev); + + return supported; +} +EXPORT_SYMBOL_GPL(ethtool_dev_mm_supported); + +static void ethtool_mmsv_configure_tx(struct ethtool_mmsv *mmsv, + bool tx_active) +{ + if (mmsv->ops->configure_tx) + mmsv->ops->configure_tx(mmsv, tx_active); +} + +static void ethtool_mmsv_configure_pmac(struct ethtool_mmsv *mmsv, + bool pmac_enabled) +{ + if (mmsv->ops->configure_pmac) + mmsv->ops->configure_pmac(mmsv, pmac_enabled); +} + +static void ethtool_mmsv_send_mpacket(struct ethtool_mmsv *mmsv, + enum ethtool_mpacket mpacket) +{ + if (mmsv->ops->send_mpacket) + mmsv->ops->send_mpacket(mmsv, mpacket); +} + +/** + * ethtool_mmsv_verify_timer - Timer for MAC Merge verification + * @t: timer_list struct containing private info + * + * Verify the MAC Merge capability in the local TX direction, by + * transmitting Verify mPackets up to 3 times. Wait until link + * partner responds with a Response mPacket, otherwise fail. + */ +static void ethtool_mmsv_verify_timer(struct timer_list *t) +{ + struct ethtool_mmsv *mmsv = timer_container_of(mmsv, t, verify_timer); + unsigned long flags; + bool rearm = false; + + spin_lock_irqsave(&mmsv->lock, flags); + + switch (mmsv->status) { + case ETHTOOL_MM_VERIFY_STATUS_INITIAL: + case ETHTOOL_MM_VERIFY_STATUS_VERIFYING: + if (mmsv->verify_retries != 0) { + ethtool_mmsv_send_mpacket(mmsv, ETHTOOL_MPACKET_VERIFY); + rearm = true; + } else { + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_FAILED; + } + + mmsv->verify_retries--; + break; + + case ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED: + ethtool_mmsv_configure_tx(mmsv, true); + break; + + default: + break; + } + + if (rearm) { + mod_timer(&mmsv->verify_timer, + jiffies + msecs_to_jiffies(mmsv->verify_time)); + } + + spin_unlock_irqrestore(&mmsv->lock, flags); +} + +static void ethtool_mmsv_verify_timer_arm(struct ethtool_mmsv *mmsv) +{ + if (mmsv->pmac_enabled && mmsv->tx_enabled && mmsv->verify_enabled && + mmsv->status != ETHTOOL_MM_VERIFY_STATUS_FAILED && + mmsv->status != ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED) { + timer_setup(&mmsv->verify_timer, ethtool_mmsv_verify_timer, 0); + mod_timer(&mmsv->verify_timer, jiffies); + } +} + +static void ethtool_mmsv_apply(struct ethtool_mmsv *mmsv) +{ + /* If verification is disabled, configure FPE right away. + * Otherwise let the timer code do it. + */ + if (!mmsv->verify_enabled) { + ethtool_mmsv_configure_pmac(mmsv, mmsv->pmac_enabled); + ethtool_mmsv_configure_tx(mmsv, mmsv->tx_enabled); + } else { + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_INITIAL; + mmsv->verify_retries = ETHTOOL_MM_MAX_VERIFY_RETRIES; + + if (netif_running(mmsv->dev)) + ethtool_mmsv_verify_timer_arm(mmsv); + } +} + +/** + * ethtool_mmsv_stop() - Stop MAC Merge Software Verification + * @mmsv: MAC Merge Software Verification state + * + * Drivers should call this method in a state where the hardware is + * about to lose state, like ndo_stop() or suspend(), and turning off + * MAC Merge features would be superfluous. Otherwise, prefer + * ethtool_mmsv_link_state_handle() with up=false. + */ +void ethtool_mmsv_stop(struct ethtool_mmsv *mmsv) +{ + timer_shutdown_sync(&mmsv->verify_timer); +} +EXPORT_SYMBOL_GPL(ethtool_mmsv_stop); + +/** + * ethtool_mmsv_link_state_handle() - Inform MAC Merge Software Verification + * of link state changes + * @mmsv: MAC Merge Software Verification state + * @up: True if device carrier is up and able to pass verification packets + * + * Calling context is expected to be from a task, interrupts enabled. + */ +void ethtool_mmsv_link_state_handle(struct ethtool_mmsv *mmsv, bool up) +{ + unsigned long flags; + + ethtool_mmsv_stop(mmsv); + + spin_lock_irqsave(&mmsv->lock, flags); + + if (up && mmsv->pmac_enabled) { + /* VERIFY process requires pMAC enabled when NIC comes up */ + ethtool_mmsv_configure_pmac(mmsv, true); + + /* New link => maybe new partner => new verification process */ + ethtool_mmsv_apply(mmsv); + } else { + /* Reset the reported verification state while the link is down */ + if (mmsv->verify_enabled) + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_INITIAL; + + /* No link or pMAC not enabled */ + ethtool_mmsv_configure_pmac(mmsv, false); + ethtool_mmsv_configure_tx(mmsv, false); + } + + spin_unlock_irqrestore(&mmsv->lock, flags); +} +EXPORT_SYMBOL_GPL(ethtool_mmsv_link_state_handle); + +/** + * ethtool_mmsv_event_handle() - Inform MAC Merge Software Verification + * of interrupt-based events + * @mmsv: MAC Merge Software Verification state + * @event: Event which took place (packet transmission or reception) + * + * Calling context expects to have interrupts disabled. + */ +void ethtool_mmsv_event_handle(struct ethtool_mmsv *mmsv, + enum ethtool_mmsv_event event) +{ + /* This is interrupt context, just spin_lock() */ + spin_lock(&mmsv->lock); + + if (!mmsv->pmac_enabled) + goto unlock; + + switch (event) { + case ETHTOOL_MMSV_LP_SENT_VERIFY_MPACKET: + /* Link partner has sent verify mPacket */ + ethtool_mmsv_send_mpacket(mmsv, ETHTOOL_MPACKET_RESPONSE); + break; + case ETHTOOL_MMSV_LD_SENT_VERIFY_MPACKET: + /* Local device has sent verify mPacket */ + if (mmsv->status != ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED) + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_VERIFYING; + break; + case ETHTOOL_MMSV_LP_SENT_RESPONSE_MPACKET: + /* Link partner has sent response mPacket */ + if (mmsv->status == ETHTOOL_MM_VERIFY_STATUS_VERIFYING) + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED; + break; + } + +unlock: + spin_unlock(&mmsv->lock); +} +EXPORT_SYMBOL_GPL(ethtool_mmsv_event_handle); + +static bool ethtool_mmsv_is_tx_active(struct ethtool_mmsv *mmsv) +{ + /* TX is active if administratively enabled, and verification either + * succeeded, or was administratively disabled. + */ + return mmsv->tx_enabled && + (mmsv->status == ETHTOOL_MM_VERIFY_STATUS_SUCCEEDED || + mmsv->status == ETHTOOL_MM_VERIFY_STATUS_DISABLED); +} + +/** + * ethtool_mmsv_get_mm() - get_mm() hook for MAC Merge Software Verification + * @mmsv: MAC Merge Software Verification state + * @state: see struct ethtool_mm_state + * + * Drivers are expected to call this from their ethtool_ops :: get_mm() + * method. + */ +void ethtool_mmsv_get_mm(struct ethtool_mmsv *mmsv, + struct ethtool_mm_state *state) +{ + unsigned long flags; + + spin_lock_irqsave(&mmsv->lock, flags); + + state->max_verify_time = ETHTOOL_MM_MAX_VERIFY_TIME_MS; + state->verify_enabled = mmsv->verify_enabled; + state->pmac_enabled = mmsv->pmac_enabled; + state->verify_time = mmsv->verify_time; + state->tx_enabled = mmsv->tx_enabled; + state->verify_status = mmsv->status; + state->tx_active = ethtool_mmsv_is_tx_active(mmsv); + + spin_unlock_irqrestore(&mmsv->lock, flags); +} +EXPORT_SYMBOL_GPL(ethtool_mmsv_get_mm); + +/** + * ethtool_mmsv_set_mm() - set_mm() hook for MAC Merge Software Verification + * @mmsv: MAC Merge Software Verification state + * @cfg: see struct ethtool_mm_cfg + * + * Drivers are expected to call this from their ethtool_ops :: set_mm() + * method. + */ +void ethtool_mmsv_set_mm(struct ethtool_mmsv *mmsv, struct ethtool_mm_cfg *cfg) +{ + unsigned long flags; + + /* Wait for the verification that's currently in progress to finish */ + ethtool_mmsv_stop(mmsv); + + spin_lock_irqsave(&mmsv->lock, flags); + + mmsv->verify_enabled = cfg->verify_enabled; + mmsv->pmac_enabled = cfg->pmac_enabled; + mmsv->verify_time = cfg->verify_time; + mmsv->tx_enabled = cfg->tx_enabled; + + if (!cfg->verify_enabled) + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_DISABLED; + + ethtool_mmsv_apply(mmsv); + + spin_unlock_irqrestore(&mmsv->lock, flags); +} +EXPORT_SYMBOL_GPL(ethtool_mmsv_set_mm); + +/** + * ethtool_mmsv_init() - Initialize MAC Merge Software Verification state + * @mmsv: MAC Merge Software Verification state + * @dev: Pointer to network interface + * @ops: Methods for implementing the generic functionality + * + * The MAC Merge Software Verification is a timer- and event-based state + * machine intended for network interfaces which lack a hardware-based + * TX verification process (as per IEEE 802.3 clause 99.4.3). The timer + * is managed by the core code, whereas events are supplied by the + * driver explicitly calling one of the other API functions. + */ +void ethtool_mmsv_init(struct ethtool_mmsv *mmsv, struct net_device *dev, + const struct ethtool_mmsv_ops *ops) +{ + mmsv->ops = ops; + mmsv->dev = dev; + mmsv->verify_retries = ETHTOOL_MM_MAX_VERIFY_RETRIES; + mmsv->verify_time = ETHTOOL_MM_MAX_VERIFY_TIME_MS; + mmsv->status = ETHTOOL_MM_VERIFY_STATUS_DISABLED; + timer_setup(&mmsv->verify_timer, ethtool_mmsv_verify_timer, 0); + spin_lock_init(&mmsv->lock); +} +EXPORT_SYMBOL_GPL(ethtool_mmsv_init); -- cgit v1.3.1