diff options
Diffstat (limited to 'net/ethtool/common.c')
| -rw-r--r-- | net/ethtool/common.c | 431 |
1 files changed, 400 insertions, 31 deletions
diff --git a/net/ethtool/common.c b/net/ethtool/common.c index 6b2a360dcdf0..eb253e0fd61b 100644 --- a/net/ethtool/common.c +++ b/net/ethtool/common.c @@ -5,8 +5,13 @@ #include <linux/phy.h> #include <linux/rtnetlink.h> #include <linux/ptp_clock_kernel.h> +#include <linux/phy_link_topology.h> +#include <net/netdev_queues.h> +#include "netlink.h" #include "common.h" +#include "../core/dev.h" + const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = { [NETIF_F_SG_BIT] = "tx-scatter-gather", @@ -24,8 +29,6 @@ const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = { [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter", [NETIF_F_VLAN_CHALLENGED_BIT] = "vlan-challenged", [NETIF_F_GSO_BIT] = "tx-generic-segmentation", - [NETIF_F_LLTX_BIT] = "tx-lockless", - [NETIF_F_NETNS_LOCAL_BIT] = "netns-local", [NETIF_F_GRO_BIT] = "rx-gro", [NETIF_F_GRO_HW_BIT] = "rx-gro-hw", [NETIF_F_LRO_BIT] = "rx-lro", @@ -33,6 +36,7 @@ const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = { [NETIF_F_TSO_BIT] = "tx-tcp-segmentation", [NETIF_F_GSO_ROBUST_BIT] = "tx-gso-robust", [NETIF_F_TSO_ECN_BIT] = "tx-tcp-ecn-segmentation", + [NETIF_F_GSO_ACCECN_BIT] = "tx-tcp-accecn-segmentation", [NETIF_F_TSO_MANGLEID_BIT] = "tx-tcp-mangleid-segmentation", [NETIF_F_TSO6_BIT] = "tx-tcp6-segmentation", [NETIF_F_FSO_BIT] = "tx-fcoe-segmentation", @@ -51,7 +55,6 @@ const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = { [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc", [NETIF_F_SCTP_CRC_BIT] = "tx-checksum-sctp", - [NETIF_F_FCOE_MTU_BIT] = "fcoe-mtu", [NETIF_F_NTUPLE_BIT] = "rx-ntuple-filter", [NETIF_F_RXHASH_BIT] = "rx-hashing", [NETIF_F_RXCSUM_BIT] = "rx-checksum", @@ -211,6 +214,25 @@ const char link_mode_names[][ETH_GSTRING_LEN] = { __DEFINE_LINK_MODE_NAME(10, T1S, Full), __DEFINE_LINK_MODE_NAME(10, T1S, Half), __DEFINE_LINK_MODE_NAME(10, T1S_P2MP, Half), + __DEFINE_LINK_MODE_NAME(10, T1BRR, Full), + __DEFINE_LINK_MODE_NAME(200000, CR, Full), + __DEFINE_LINK_MODE_NAME(200000, KR, Full), + __DEFINE_LINK_MODE_NAME(200000, DR, Full), + __DEFINE_LINK_MODE_NAME(200000, DR_2, Full), + __DEFINE_LINK_MODE_NAME(200000, SR, Full), + __DEFINE_LINK_MODE_NAME(200000, VR, Full), + __DEFINE_LINK_MODE_NAME(400000, CR2, Full), + __DEFINE_LINK_MODE_NAME(400000, KR2, Full), + __DEFINE_LINK_MODE_NAME(400000, DR2, Full), + __DEFINE_LINK_MODE_NAME(400000, DR2_2, Full), + __DEFINE_LINK_MODE_NAME(400000, SR2, Full), + __DEFINE_LINK_MODE_NAME(400000, VR2, Full), + __DEFINE_LINK_MODE_NAME(800000, CR4, Full), + __DEFINE_LINK_MODE_NAME(800000, KR4, Full), + __DEFINE_LINK_MODE_NAME(800000, DR4, Full), + __DEFINE_LINK_MODE_NAME(800000, DR4_2, Full), + __DEFINE_LINK_MODE_NAME(800000, SR4, Full), + __DEFINE_LINK_MODE_NAME(800000, VR4, Full), }; static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS); @@ -219,8 +241,11 @@ static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS); #define __LINK_MODE_LANES_CR4 4 #define __LINK_MODE_LANES_CR8 8 #define __LINK_MODE_LANES_DR 1 +#define __LINK_MODE_LANES_DR_2 1 #define __LINK_MODE_LANES_DR2 2 +#define __LINK_MODE_LANES_DR2_2 2 #define __LINK_MODE_LANES_DR4 4 +#define __LINK_MODE_LANES_DR4_2 4 #define __LINK_MODE_LANES_DR8 8 #define __LINK_MODE_LANES_KR 1 #define __LINK_MODE_LANES_KR2 2 @@ -249,8 +274,12 @@ static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS); #define __LINK_MODE_LANES_T1L 1 #define __LINK_MODE_LANES_T1S 1 #define __LINK_MODE_LANES_T1S_P2MP 1 +#define __LINK_MODE_LANES_VR 1 +#define __LINK_MODE_LANES_VR2 2 +#define __LINK_MODE_LANES_VR4 4 #define __LINK_MODE_LANES_VR8 8 #define __LINK_MODE_LANES_DR8_2 8 +#define __LINK_MODE_LANES_T1BRR 1 #define __DEFINE_LINK_MODE_PARAMS(_speed, _type, _duplex) \ [ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = { \ @@ -374,8 +403,28 @@ const struct link_mode_info link_mode_params[] = { __DEFINE_LINK_MODE_PARAMS(10, T1S, Full), __DEFINE_LINK_MODE_PARAMS(10, T1S, Half), __DEFINE_LINK_MODE_PARAMS(10, T1S_P2MP, Half), + __DEFINE_LINK_MODE_PARAMS(10, T1BRR, Full), + __DEFINE_LINK_MODE_PARAMS(200000, CR, Full), + __DEFINE_LINK_MODE_PARAMS(200000, KR, Full), + __DEFINE_LINK_MODE_PARAMS(200000, DR, Full), + __DEFINE_LINK_MODE_PARAMS(200000, DR_2, Full), + __DEFINE_LINK_MODE_PARAMS(200000, SR, Full), + __DEFINE_LINK_MODE_PARAMS(200000, VR, Full), + __DEFINE_LINK_MODE_PARAMS(400000, CR2, Full), + __DEFINE_LINK_MODE_PARAMS(400000, KR2, Full), + __DEFINE_LINK_MODE_PARAMS(400000, DR2, Full), + __DEFINE_LINK_MODE_PARAMS(400000, DR2_2, Full), + __DEFINE_LINK_MODE_PARAMS(400000, SR2, Full), + __DEFINE_LINK_MODE_PARAMS(400000, VR2, Full), + __DEFINE_LINK_MODE_PARAMS(800000, CR4, Full), + __DEFINE_LINK_MODE_PARAMS(800000, KR4, Full), + __DEFINE_LINK_MODE_PARAMS(800000, DR4, Full), + __DEFINE_LINK_MODE_PARAMS(800000, DR4_2, Full), + __DEFINE_LINK_MODE_PARAMS(800000, SR4, Full), + __DEFINE_LINK_MODE_PARAMS(800000, VR4, Full), }; static_assert(ARRAY_SIZE(link_mode_params) == __ETHTOOL_LINK_MODE_MASK_NBITS); +EXPORT_SYMBOL_GPL(link_mode_params); const char netif_msg_class_names[][ETH_GSTRING_LEN] = { [NETIF_MSG_DRV_BIT] = "drv", @@ -426,6 +475,8 @@ const char sof_timestamping_names[][ETH_GSTRING_LEN] = { [const_ilog2(SOF_TIMESTAMPING_OPT_TX_SWHW)] = "option-tx-swhw", [const_ilog2(SOF_TIMESTAMPING_BIND_PHC)] = "bind-phc", [const_ilog2(SOF_TIMESTAMPING_OPT_ID_TCP)] = "option-id-tcp", + [const_ilog2(SOF_TIMESTAMPING_OPT_RX_FILTER)] = "option-rx-filter", + [const_ilog2(SOF_TIMESTAMPING_TX_COMPLETION)] = "tx-completion", }; static_assert(ARRAY_SIZE(sof_timestamping_names) == __SOF_TIMESTAMPING_CNT); @@ -457,6 +508,11 @@ const char ts_rx_filter_names[][ETH_GSTRING_LEN] = { }; static_assert(ARRAY_SIZE(ts_rx_filter_names) == __HWTSTAMP_FILTER_CNT); +const char ts_flags_names[][ETH_GSTRING_LEN] = { + [const_ilog2(HWTSTAMP_FLAG_BONDED_PHC_INDEX)] = "bonded-phc-index", +}; +static_assert(ARRAY_SIZE(ts_flags_names) == __HWTSTAMP_FLAG_CNT); + const char udp_tunnel_type_names[][ETH_GSTRING_LEN] = { [ETHTOOL_UDP_TUNNEL_TYPE_VXLAN] = "vxlan", [ETHTOOL_UDP_TUNNEL_TYPE_GENEVE] = "geneve", @@ -536,7 +592,21 @@ static int ethtool_get_rxnfc_rule_count(struct net_device *dev) return info.rule_cnt; } -int ethtool_get_max_rxnfc_channel(struct net_device *dev, u64 *max) +/* Max offset for one RSS context */ +static u32 ethtool_get_rss_ctx_max_channel(struct ethtool_rxfh_context *ctx) +{ + u32 max_ring = 0; + u32 i, *tbl; + + if (WARN_ON_ONCE(!ctx)) + return 0; + tbl = ethtool_rxfh_context_indir(ctx); + for (i = 0; i < ctx->indir_size; i++) + max_ring = max(max_ring, tbl[i]); + return max_ring; +} + +static int ethtool_get_max_rxnfc_channel(struct net_device *dev, u64 *max) { const struct ethtool_ops *ops = dev->ethtool_ops; struct ethtool_rxnfc *info; @@ -572,10 +642,18 @@ int ethtool_get_max_rxnfc_channel(struct net_device *dev, u64 *max) if (rule_info.fs.ring_cookie != RX_CLS_FLOW_DISC && rule_info.fs.ring_cookie != RX_CLS_FLOW_WAKE && - !(rule_info.flow_type & FLOW_RSS) && - !ethtool_get_flow_spec_ring_vf(rule_info.fs.ring_cookie)) - max_ring = - max_t(u64, max_ring, rule_info.fs.ring_cookie); + !ethtool_get_flow_spec_ring_vf(rule_info.fs.ring_cookie)) { + u64 ring = rule_info.fs.ring_cookie; + + if (rule_info.flow_type & FLOW_RSS) { + struct ethtool_rxfh_context *ctx; + + ctx = xa_load(&dev->ethtool->rss_ctx, + rule_info.rss_context); + ring += ethtool_get_rss_ctx_max_channel(ctx); + } + max_ring = max_t(u64, max_ring, ring); + } } kvfree(info); @@ -587,41 +665,151 @@ err_free_info: return err; } -int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max) +/* Max offset across all of a device's RSS contexts */ +static u32 ethtool_get_max_rss_ctx_channel(struct net_device *dev) +{ + struct ethtool_rxfh_context *ctx; + unsigned long context; + u32 max_ring = 0; + + mutex_lock(&dev->ethtool->rss_lock); + xa_for_each(&dev->ethtool->rss_ctx, context, ctx) + max_ring = max(max_ring, ethtool_get_rss_ctx_max_channel(ctx)); + mutex_unlock(&dev->ethtool->rss_lock); + + return max_ring; +} + +static u32 ethtool_get_max_rxfh_channel(struct net_device *dev) { struct ethtool_rxfh_param rxfh = {}; u32 dev_size, current_max = 0; int ret; + /* While we do track whether RSS context has an indirection + * table explicitly set by the user, no driver looks at that bit. + * Assume drivers won't auto-regenerate the additional tables, + * to be safe. + */ + current_max = ethtool_get_max_rss_ctx_channel(dev); + + if (!netif_is_rxfh_configured(dev)) + return current_max; + if (!dev->ethtool_ops->get_rxfh_indir_size || !dev->ethtool_ops->get_rxfh) - return -EOPNOTSUPP; + return current_max; dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev); if (dev_size == 0) - return -EOPNOTSUPP; + return current_max; rxfh.indir = kcalloc(dev_size, sizeof(rxfh.indir[0]), GFP_USER); if (!rxfh.indir) - return -ENOMEM; + return U32_MAX; ret = dev->ethtool_ops->get_rxfh(dev, &rxfh); - if (ret) - goto out; + if (ret) { + current_max = U32_MAX; + goto out_free; + } while (dev_size--) current_max = max(current_max, rxfh.indir[dev_size]); - *max = current_max; - -out: +out_free: kfree(rxfh.indir); - return ret; + return current_max; +} + +int ethtool_check_max_channel(struct net_device *dev, + struct ethtool_channels channels, + struct genl_info *info) +{ + u64 max_rxnfc_in_use; + u32 max_rxfh_in_use; + int max_mp_in_use; + + /* ensure the new Rx count fits within the configured Rx flow + * indirection table/rxnfc settings + */ + if (ethtool_get_max_rxnfc_channel(dev, &max_rxnfc_in_use)) + max_rxnfc_in_use = 0; + max_rxfh_in_use = ethtool_get_max_rxfh_channel(dev); + if (channels.combined_count + channels.rx_count <= max_rxfh_in_use) { + if (info) + GENL_SET_ERR_MSG_FMT(info, "requested channel counts are too low for existing indirection table (%d)", max_rxfh_in_use); + return -EINVAL; + } + if (channels.combined_count + channels.rx_count <= max_rxnfc_in_use) { + if (info) + GENL_SET_ERR_MSG(info, "requested channel counts are too low for existing ntuple filter settings"); + return -EINVAL; + } + + max_mp_in_use = dev_get_min_mp_channel_count(dev); + if (channels.combined_count + channels.rx_count <= max_mp_in_use) { + if (info) + GENL_SET_ERR_MSG_FMT(info, "requested channel counts are too low for existing memory provider setting (%d)", max_mp_in_use); + return -EINVAL; + } + + return 0; +} + +int ethtool_check_rss_ctx_busy(struct net_device *dev, u32 rss_context) +{ + const struct ethtool_ops *ops = dev->ethtool_ops; + struct ethtool_rxnfc *info; + int rc, i, rule_cnt; + + if (!ops->get_rxnfc) + return 0; + + rule_cnt = ethtool_get_rxnfc_rule_count(dev); + if (!rule_cnt) + return 0; + + if (rule_cnt < 0) + return -EINVAL; + + info = kvzalloc(struct_size(info, rule_locs, rule_cnt), GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->cmd = ETHTOOL_GRXCLSRLALL; + info->rule_cnt = rule_cnt; + rc = ops->get_rxnfc(dev, info, info->rule_locs); + if (rc) + goto out_free; + + for (i = 0; i < rule_cnt; i++) { + struct ethtool_rxnfc rule_info = { + .cmd = ETHTOOL_GRXCLSRULE, + .fs.location = info->rule_locs[i], + }; + + rc = ops->get_rxnfc(dev, &rule_info, NULL); + if (rc) + goto out_free; + + if (rule_info.fs.flow_type & FLOW_RSS && + rule_info.rss_context == rss_context) { + rc = -EBUSY; + goto out_free; + } + } + +out_free: + kvfree(info); + return rc; } int ethtool_check_ops(const struct ethtool_ops *ops) { if (WARN_ON(ops->set_coalesce && !ops->supported_coalesce_params)) return -EINVAL; + if (WARN_ON(ops->rxfh_max_num_contexts == 1)) + return -EINVAL; /* NOTE: sufficiently insane drivers may swap ethtool_ops at runtime, * the fact that ops are checked at registration time does not * mean the ops attached to a netdev later on are sane. @@ -629,29 +817,196 @@ int ethtool_check_ops(const struct ethtool_ops *ops) return 0; } -int __ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) +void ethtool_ringparam_get_cfg(struct net_device *dev, + struct ethtool_ringparam *param, + struct kernel_ethtool_ringparam *kparam, + struct netlink_ext_ack *extack) { - const struct ethtool_ops *ops = dev->ethtool_ops; - struct phy_device *phydev = dev->phydev; + memset(param, 0, sizeof(*param)); + memset(kparam, 0, sizeof(*kparam)); + param->cmd = ETHTOOL_GRINGPARAM; + dev->ethtool_ops->get_ringparam(dev, param, kparam, extack); + + /* Driver gives us current state, we want to return current config */ + kparam->tcp_data_split = dev->cfg->hds_config; + kparam->hds_thresh = dev->cfg->hds_thresh; +} + +static void ethtool_init_tsinfo(struct kernel_ethtool_ts_info *info) +{ memset(info, 0, sizeof(*info)); info->cmd = ETHTOOL_GET_TS_INFO; + info->phc_index = -1; +} - if (phy_has_tsinfo(phydev)) - return phy_ts_info(phydev, info); - if (ops->get_ts_info) - return ops->get_ts_info(dev, info); +int ethtool_net_get_ts_info_by_phc(struct net_device *dev, + struct kernel_ethtool_ts_info *info, + struct hwtstamp_provider_desc *hwprov_desc) +{ + const struct ethtool_ops *ops = dev->ethtool_ops; + int err; - info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | - SOF_TIMESTAMPING_SOFTWARE; - info->phc_index = -1; + if (!ops->get_ts_info) + return -ENODEV; - return 0; + /* Does ptp comes from netdev */ + ethtool_init_tsinfo(info); + info->phc_qualifier = hwprov_desc->qualifier; + err = ops->get_ts_info(dev, info); + if (err) + return err; + + if (info->phc_index == hwprov_desc->index && + net_support_hwtstamp_qualifier(dev, hwprov_desc->qualifier)) + return 0; + + return -ENODEV; +} + +struct phy_device * +ethtool_phy_get_ts_info_by_phc(struct net_device *dev, + struct kernel_ethtool_ts_info *info, + struct hwtstamp_provider_desc *hwprov_desc) +{ + int err; + + /* Only precise qualifier is supported in phydev */ + if (hwprov_desc->qualifier != HWTSTAMP_PROVIDER_QUALIFIER_PRECISE) + return ERR_PTR(-ENODEV); + + /* Look in the phy topology */ + if (dev->link_topo) { + struct phy_device_node *pdn; + unsigned long phy_index; + + xa_for_each(&dev->link_topo->phys, phy_index, pdn) { + if (!phy_has_tsinfo(pdn->phy)) + continue; + + ethtool_init_tsinfo(info); + err = phy_ts_info(pdn->phy, info); + if (err) + return ERR_PTR(err); + + if (info->phc_index == hwprov_desc->index) + return pdn->phy; + } + return ERR_PTR(-ENODEV); + } + + /* Look on the dev->phydev */ + if (phy_has_tsinfo(dev->phydev)) { + ethtool_init_tsinfo(info); + err = phy_ts_info(dev->phydev, info); + if (err) + return ERR_PTR(err); + + if (info->phc_index == hwprov_desc->index) + return dev->phydev; + } + + return ERR_PTR(-ENODEV); +} + +int ethtool_get_ts_info_by_phc(struct net_device *dev, + struct kernel_ethtool_ts_info *info, + struct hwtstamp_provider_desc *hwprov_desc) +{ + int err; + + err = ethtool_net_get_ts_info_by_phc(dev, info, hwprov_desc); + if (err == -ENODEV) { + struct phy_device *phy; + + phy = ethtool_phy_get_ts_info_by_phc(dev, info, hwprov_desc); + if (IS_ERR(phy)) + return PTR_ERR(phy); + + /* Report the phc source only if we have a real + * phc source with an index. + */ + if (info->phc_index >= 0) { + info->phc_source = HWTSTAMP_SOURCE_PHYLIB; + info->phc_phyindex = phy->phyindex; + } + err = 0; + } else if (!err && info->phc_index >= 0) { + info->phc_source = HWTSTAMP_SOURCE_NETDEV; + } + + info->so_timestamping |= SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + + return err; +} + +int __ethtool_get_ts_info(struct net_device *dev, + struct kernel_ethtool_ts_info *info) +{ + struct hwtstamp_provider *hwprov; + int err = 0; + + rcu_read_lock(); + hwprov = rcu_dereference(dev->hwprov); + /* No provider specified, use default behavior */ + if (!hwprov) { + const struct ethtool_ops *ops = dev->ethtool_ops; + struct phy_device *phydev = dev->phydev; + + ethtool_init_tsinfo(info); + if (phy_is_default_hwtstamp(phydev) && + phy_has_tsinfo(phydev)) { + err = phy_ts_info(phydev, info); + /* Report the phc source only if we have a real + * phc source with an index. + */ + if (!err && info->phc_index >= 0) { + info->phc_source = HWTSTAMP_SOURCE_PHYLIB; + info->phc_phyindex = phydev->phyindex; + } + } else if (ops->get_ts_info) { + err = ops->get_ts_info(dev, info); + if (!err && info->phc_index >= 0) + info->phc_source = HWTSTAMP_SOURCE_NETDEV; + } + + info->so_timestamping |= SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + + rcu_read_unlock(); + return err; + } + + err = ethtool_get_ts_info_by_phc(dev, info, &hwprov->desc); + rcu_read_unlock(); + return err; +} + +bool net_support_hwtstamp_qualifier(struct net_device *dev, + enum hwtstamp_provider_qualifier qualifier) +{ + const struct ethtool_ops *ops = dev->ethtool_ops; + + if (!ops) + return false; + + /* Return true with precise qualifier and with NIC without + * qualifier description to not break the old behavior. + */ + if (!ops->supported_hwtstamp_qualifiers && + qualifier == HWTSTAMP_PROVIDER_QUALIFIER_PRECISE) + return true; + + if (ops->supported_hwtstamp_qualifiers & BIT(qualifier)) + return true; + + return false; } int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index) { - struct ethtool_ts_info info = { }; + struct kernel_ethtool_ts_info info = { }; int num = 0; if (!__ethtool_get_ts_info(dev, &info)) @@ -661,7 +1016,7 @@ int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index) } EXPORT_SYMBOL(ethtool_get_phc_vclocks); -int ethtool_get_ts_info_by_layer(struct net_device *dev, struct ethtool_ts_info *info) +int ethtool_get_ts_info_by_layer(struct net_device *dev, struct kernel_ethtool_ts_info *info) { return __ethtool_get_ts_info(dev, info); } @@ -712,3 +1067,17 @@ ethtool_forced_speed_maps_init(struct ethtool_forced_speed_map *maps, u32 size) } } EXPORT_SYMBOL_GPL(ethtool_forced_speed_maps_init); + +void ethtool_rxfh_context_lost(struct net_device *dev, u32 context_id) +{ + struct ethtool_rxfh_context *ctx; + + WARN_ONCE(!rtnl_is_locked() && + !lockdep_is_held_type(&dev->ethtool->rss_lock, -1), + "RSS context lock assertion failed\n"); + + netdev_err(dev, "device error, RSS context %d lost\n", context_id); + ctx = xa_erase(&dev->ethtool->rss_ctx, context_id); + kfree(ctx); +} +EXPORT_SYMBOL(ethtool_rxfh_context_lost); |