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authorLinus Torvalds <torvalds@linux-foundation.org>2026-04-14 18:36:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-04-14 18:36:10 -0700
commit91a4855d6c03e770e42f17c798a36a3c46e63de2 (patch)
tree5103bfe3aea2aab7e8b358c5c9329539508f648d /drivers/net/netdevsim/netdev.c
parentf5ad4101009e7f5f5984ffea6923d4fcd470932a (diff)
parent35c2c39832e569449b9192fa1afbbc4c66227af7 (diff)
downloadlwn-91a4855d6c03e770e42f17c798a36a3c46e63de2.tar.gz
lwn-91a4855d6c03e770e42f17c798a36a3c46e63de2.zip
Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core & protocols: - Support HW queue leasing, allowing containers to be granted access to HW queues for zero-copy operations and AF_XDP - Number of code moves to help the compiler with inlining. Avoid output arguments for returning drop reason where possible - Rework drop handling within qdiscs to include more metadata about the reason and dropping qdisc in the tracepoints - Remove the rtnl_lock use from IP Multicast Routing - Pack size information into the Rx Flow Steering table pointer itself. This allows making the table itself a flat array of u32s, thus making the table allocation size a power of two - Report TCP delayed ack timer information via socket diag - Add ip_local_port_step_width sysctl to allow distributing the randomly selected ports more evenly throughout the allowed space - Add support for per-route tunsrc in IPv6 segment routing - Start work of switching sockopt handling to iov_iter - Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid buffer size drifting up - Support MSG_EOR in MPTCP - Add stp_mode attribute to the bridge driver for STP mode selection. This addresses concerns about call_usermodehelper() usage - Remove UDP-Lite support (as announced in 2023) - Remove support for building IPv6 as a module. Remove the now unnecessary function calling indirection Cross-tree stuff: - Move Michael MIC code from generic crypto into wireless, it's considered insecure but some WiFi networks still need it Netfilter: - Switch nft_fib_ipv6 module to no longer need temporary dst_entry object allocations by using fib6_lookup() + RCU. Florian W reports this gets us ~13% higher packet rate - Convert IPVS's global __ip_vs_mutex to per-net service_mutex and switch the service tables to be per-net. Convert some code that walks the service lists to use RCU instead of the service_mutex - Add more opinionated input validation to lower security exposure - Make IPVS hash tables to be per-netns and resizable Wireless: - Finished assoc frame encryption/EPPKE/802.1X-over-auth - Radar detection improvements - Add 6 GHz incumbent signal detection APIs - Multi-link support for FILS, probe response templates and client probing - New APIs and mac80211 support for NAN (Neighbor Aware Networking, aka Wi-Fi Aware) so less work must be in firmware Driver API: - Add numerical ID for devlink instances (to avoid having to create fake bus/device pairs just to have an ID). Support shared devlink instances which span multiple PFs - Add standard counters for reporting pause storm events (implement in mlx5 and fbnic) - Add configuration API for completion writeback buffering (implement in mana) - Support driver-initiated change of RSS context sizes - Support DPLL monitoring input frequency (implement in zl3073x) - Support per-port resources in devlink (implement in mlx5) Misc: - Expand the YAML spec for Netfilter Drivers - Software: - macvlan: support multicast rx for bridge ports with shared source MAC address - team: decouple receive and transmit enablement for IEEE 802.3ad LACP "independent control" - Ethernet high-speed NICs: - nVidia/Mellanox: - support high order pages in zero-copy mode (for payload coalescing) - support multiple packets in a page (for systems with 64kB pages) - Broadcom 25-400GE (bnxt): - implement XDP RSS hash metadata extraction - add software fallback for UDP GSO, lowering the IOMMU cost - Broadcom 800GE (bnge): - add link status and configuration handling - add various HW and SW statistics - Marvell/Cavium: - NPC HW block support for cn20k - Huawei (hinic3): - add mailbox / control queue - add rx VLAN offload - add driver info and link management - Ethernet NICs: - Marvell/Aquantia: - support reading SFP module info on some AQC100 cards - Realtek PCI (r8169): - add support for RTL8125cp - Realtek USB (r8152): - support for the RTL8157 5Gbit chip - add 2500baseT EEE status/configuration support - Ethernet NICs embedded and off-the-shelf IP: - Synopsys (stmmac): - cleanup and reorganize SerDes handling and PCS support - cleanup descriptor handling and per-platform data - cleanup and consolidate MDIO defines and handling - shrink driver memory use for internal structures - improve Tx IRQ coalescing - improve TCP segmentation handling - add support for Spacemit K3 - Cadence (macb): - support PHYs that have inband autoneg disabled with GEM - support IEEE 802.3az EEE - rework usrio capabilities and handling - AMD (xgbe): - improve power management for S0i3 - improve TX resilience for link-down handling - Virtual: - Google cloud vNIC: - support larger ring sizes in DQO-QPL mode - improve HW-GRO handling - support UDP GSO for DQO format - PCIe NTB: - support queue count configuration - Ethernet PHYs: - automatically disable PHY autonomous EEE if MAC is in charge - Broadcom: - add BCM84891/BCM84892 support - Micrel: - support for LAN9645X internal PHY - Realtek: - add RTL8224 pair order support - support PHY LEDs on RTL8211F-VD - support spread spectrum clocking (SSC) - Maxlinear: - add PHY-level statistics via ethtool - Ethernet switches: - Maxlinear (mxl862xx): - support for bridge offloading - support for VLANs - support driver statistics - Bluetooth: - large number of fixes and new device IDs - Mediatek: - support MT6639 (MT7927) - support MT7902 SDIO - WiFi: - Intel (iwlwifi): - UNII-9 and continuing UHR work - MediaTek (mt76): - mt7996/mt7925 MLO fixes/improvements - mt7996 NPU support (HW eth/wifi traffic offload) - Qualcomm (ath12k): - monitor mode support on IPQ5332 - basic hwmon temperature reporting - support IPQ5424 - Realtek: - add USB RX aggregation to improve performance - add USB TX flow control by tracking in-flight URBs - Cellular: - IPA v5.2 support" * tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1561 commits) net: pse-pd: fix kernel-doc function name for pse_control_find_by_id() wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit wireguard: allowedips: remove redundant space tools: ynl: add sample for wireguard wireguard: allowedips: Use kfree_rcu() instead of call_rcu() MAINTAINERS: Add netkit selftest files selftests/net: Add additional test coverage in nk_qlease selftests/net: Split netdevsim tests from HW tests in nk_qlease tools/ynl: Make YnlFamily closeable as a context manager net: airoha: Add missing PPE configurations in airoha_ppe_hw_init() net: airoha: Fix VIP configuration for AN7583 SoC net: caif: clear client service pointer on teardown net: strparser: fix skb_head leak in strp_abort_strp() net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() selftests/bpf: add test for xdp_master_redirect with bond not up net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration sctp: disable BH before calling udp_tunnel_xmit_skb() sctp: fix missing encap_port propagation for GSO fragments net: airoha: Rely on net_device pointer in ETS callbacks ...
Diffstat (limited to 'drivers/net/netdevsim/netdev.c')
-rw-r--r--drivers/net/netdevsim/netdev.c116
1 files changed, 63 insertions, 53 deletions
diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index 3645ebde049a..e1541ca76715 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -202,12 +202,6 @@ static int nsim_change_mtu(struct net_device *dev, int new_mtu)
return 0;
}
-static int
-nsim_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv)
-{
- return nsim_bpf_setup_tc_block_cb(type, type_data, cb_priv);
-}
-
static int nsim_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
{
struct netdevsim *ns = netdev_priv(dev);
@@ -338,51 +332,6 @@ static int nsim_set_vf_link_state(struct net_device *dev, int vf, int state)
return 0;
}
-static void nsim_taprio_stats(struct tc_taprio_qopt_stats *stats)
-{
- stats->window_drops = 0;
- stats->tx_overruns = 0;
-}
-
-static int nsim_setup_tc_taprio(struct net_device *dev,
- struct tc_taprio_qopt_offload *offload)
-{
- int err = 0;
-
- switch (offload->cmd) {
- case TAPRIO_CMD_REPLACE:
- case TAPRIO_CMD_DESTROY:
- break;
- case TAPRIO_CMD_STATS:
- nsim_taprio_stats(&offload->stats);
- break;
- default:
- err = -EOPNOTSUPP;
- }
-
- return err;
-}
-
-static LIST_HEAD(nsim_block_cb_list);
-
-static int
-nsim_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data)
-{
- struct netdevsim *ns = netdev_priv(dev);
-
- switch (type) {
- case TC_SETUP_QDISC_TAPRIO:
- return nsim_setup_tc_taprio(dev, type_data);
- case TC_SETUP_BLOCK:
- return flow_block_cb_setup_simple(type_data,
- &nsim_block_cb_list,
- nsim_setup_tc_block_cb,
- ns, ns, true);
- default:
- return -EOPNOTSUPP;
- }
-}
-
static int
nsim_set_features(struct net_device *dev, netdev_features_t features)
{
@@ -605,6 +554,36 @@ static int nsim_stop(struct net_device *dev)
return 0;
}
+static int nsim_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ if (vid >= VLAN_N_VID)
+ return -EINVAL;
+
+ if (proto == htons(ETH_P_8021Q))
+ WARN_ON_ONCE(test_and_set_bit(vid, ns->vlan.ctag));
+ else if (proto == htons(ETH_P_8021AD))
+ WARN_ON_ONCE(test_and_set_bit(vid, ns->vlan.stag));
+
+ return 0;
+}
+
+static int nsim_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
+{
+ struct netdevsim *ns = netdev_priv(dev);
+
+ if (vid >= VLAN_N_VID)
+ return -EINVAL;
+
+ if (proto == htons(ETH_P_8021Q))
+ WARN_ON_ONCE(!test_and_clear_bit(vid, ns->vlan.ctag));
+ else if (proto == htons(ETH_P_8021AD))
+ WARN_ON_ONCE(!test_and_clear_bit(vid, ns->vlan.stag));
+
+ return 0;
+}
+
static int nsim_shaper_set(struct net_shaper_binding *binding,
const struct net_shaper *shaper,
struct netlink_ext_ack *extack)
@@ -662,6 +641,8 @@ static const struct net_device_ops nsim_netdev_ops = {
.ndo_bpf = nsim_bpf,
.ndo_open = nsim_open,
.ndo_stop = nsim_stop,
+ .ndo_vlan_rx_add_vid = nsim_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = nsim_vlan_rx_kill_vid,
.net_shaper_ops = &nsim_shaper_ops,
};
@@ -673,6 +654,8 @@ static const struct net_device_ops nsim_vf_netdev_ops = {
.ndo_change_mtu = nsim_change_mtu,
.ndo_setup_tc = nsim_setup_tc,
.ndo_set_features = nsim_set_features,
+ .ndo_vlan_rx_add_vid = nsim_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = nsim_vlan_rx_kill_vid,
};
/* We don't have true per-queue stats, yet, so do some random fakery here.
@@ -970,6 +953,20 @@ static const struct file_operations nsim_pp_hold_fops = {
.owner = THIS_MODULE,
};
+static int nsim_vlan_show(struct seq_file *s, void *data)
+{
+ struct netdevsim *ns = s->private;
+ int vid;
+
+ for_each_set_bit(vid, ns->vlan.ctag, VLAN_N_VID)
+ seq_printf(s, "ctag %d\n", vid);
+ for_each_set_bit(vid, ns->vlan.stag, VLAN_N_VID)
+ seq_printf(s, "stag %d\n", vid);
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(nsim_vlan);
+
static void nsim_setup(struct net_device *dev)
{
ether_setup(dev);
@@ -982,14 +979,18 @@ static void nsim_setup(struct net_device *dev)
NETIF_F_FRAGLIST |
NETIF_F_HW_CSUM |
NETIF_F_LRO |
- NETIF_F_TSO;
+ NETIF_F_TSO |
+ NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_STAG_FILTER;
dev->hw_features |= NETIF_F_HW_TC |
NETIF_F_SG |
NETIF_F_FRAGLIST |
NETIF_F_HW_CSUM |
NETIF_F_LRO |
NETIF_F_TSO |
- NETIF_F_LOOPBACK;
+ NETIF_F_LOOPBACK |
+ NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_STAG_FILTER;
dev->pcpu_stat_type = NETDEV_PCPU_STAT_DSTATS;
dev->max_mtu = ETH_MAX_MTU;
dev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_HW_OFFLOAD;
@@ -1156,6 +1157,8 @@ struct netdevsim *nsim_create(struct nsim_dev *nsim_dev,
ns->qr_dfs = debugfs_create_file("queue_reset", 0200,
nsim_dev_port->ddir, ns,
&nsim_qreset_fops);
+ ns->vlan_dfs = debugfs_create_file("vlan", 0400, nsim_dev_port->ddir,
+ ns, &nsim_vlan_fops);
return ns;
err_free_netdev:
@@ -1167,7 +1170,9 @@ void nsim_destroy(struct netdevsim *ns)
{
struct net_device *dev = ns->netdev;
struct netdevsim *peer;
+ u16 vid;
+ debugfs_remove(ns->vlan_dfs);
debugfs_remove(ns->qr_dfs);
debugfs_remove(ns->pp_dfs);
@@ -1193,6 +1198,11 @@ void nsim_destroy(struct netdevsim *ns)
if (nsim_dev_port_is_pf(ns->nsim_dev_port))
nsim_exit_netdevsim(ns);
+ for_each_set_bit(vid, ns->vlan.ctag, VLAN_N_VID)
+ WARN_ON_ONCE(1);
+ for_each_set_bit(vid, ns->vlan.stag, VLAN_N_VID)
+ WARN_ON_ONCE(1);
+
/* Put this intentionally late to exercise the orphaning path */
if (ns->page) {
page_pool_put_full_page(pp_page_to_nmdesc(ns->page)->pp,