From 9cc63f8bcd560c760d0b12e15bba8f81c86237cf Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 14 Aug 2026 15:43:51 -0700 Subject: Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEAD Changes: Make expedited grace periods expedite normal RCU callbacks Miscellaneous fixes: * Improve diagnostic output with character task states. * Mark accesses to inform KCSAN of concurrency design. * Move from kmalloc() to kmalloc_obj(). * Documentation updates. * Improve handling of RCU deferred quiescent states. * Clean up unused function arguments and structure fields. * Reduce show_rcu_gp_kthreads() stack space. Tasks RCU updates: * Clean up after SRCU re-implementation of Tasks Trace RCU. * Mark accesses to inform KCSAN of concurrency design. * Add ->lazy_timer status to diagnostic output. * Remove an unnecessary memory barrier. * Fix a data race, courtesy of KCSAN. * Documentation updates. * Convert cond_resched_tasks_rcu_qs() from macro to static inline function. SRCU updates: * Add Rust helpers for SRCU. * Avoid losing queued work at cleanup_srcu_struct() time. Torture-test updates: * Preparation work for immediate RCU priority deboosting. * Test RCU readers from real interrupt handlers (as opposed to softirq). * Simplify code through use of cpumask_next_wrap(). * Improve diagnostic output with character task states. * Add rcutorture.nwriters parameter to allow lightweight stall testing, and rcutorture.stall_only to make doing so easier. * Test an RCU Tasks Trace grace period implying an RCU grace period. * Make RCU Tasks Trace torturing track reader batches. * Fix a data race, courtesy of KCSAN. * Plug a shuffle_tmp_mask memory leak on kthread spawn failure. --- net/openvswitch/openvswitch_trace.h | 158 ++++++++++++++++++++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 net/openvswitch/openvswitch_trace.h (limited to 'net/openvswitch/openvswitch_trace.h') diff --git a/net/openvswitch/openvswitch_trace.h b/net/openvswitch/openvswitch_trace.h new file mode 100644 index 000000000..74d75aaeb --- /dev/null +++ b/net/openvswitch/openvswitch_trace.h @@ -0,0 +1,158 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM openvswitch + +#if !defined(_TRACE_OPENVSWITCH_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_OPENVSWITCH_H + +#include + +#include "datapath.h" + +TRACE_EVENT(ovs_do_execute_action, + + TP_PROTO(struct datapath *dp, struct sk_buff *skb, + struct sw_flow_key *key, const struct nlattr *a, int rem), + + TP_ARGS(dp, skb, key, a, rem), + + TP_STRUCT__entry( + __field( void *, dpaddr ) + __string( dp_name, ovs_dp_name(dp) ) + __string( dev_name, skb->dev->name ) + __field( void *, skbaddr ) + __field( unsigned int, len ) + __field( unsigned int, data_len ) + __field( unsigned int, truesize ) + __field( u8, nr_frags ) + __field( u16, gso_size ) + __field( u16, gso_type ) + __field( u32, ovs_flow_hash ) + __field( u32, recirc_id ) + __field( void *, keyaddr ) + __field( u16, key_eth_type ) + __field( u8, key_ct_state ) + __field( u8, key_ct_orig_proto ) + __field( u16, key_ct_zone ) + __field( unsigned int, flow_key_valid ) + __field( u8, action_type ) + __field( unsigned int, action_len ) + __field( void *, action_data ) + __field( u8, is_last ) + ), + + TP_fast_assign( + __entry->dpaddr = dp; + __assign_str(dp_name); + __assign_str(dev_name); + __entry->skbaddr = skb; + __entry->len = skb->len; + __entry->data_len = skb->data_len; + __entry->truesize = skb->truesize; + __entry->nr_frags = skb_shinfo(skb)->nr_frags; + __entry->gso_size = skb_shinfo(skb)->gso_size; + __entry->gso_type = skb_shinfo(skb)->gso_type; + __entry->ovs_flow_hash = key->ovs_flow_hash; + __entry->recirc_id = key->recirc_id; + __entry->keyaddr = key; + __entry->key_eth_type = key->eth.type; + __entry->key_ct_state = key->ct_state; + __entry->key_ct_orig_proto = key->ct_orig_proto; + __entry->key_ct_zone = key->ct_zone; + __entry->flow_key_valid = !(key->mac_proto & SW_FLOW_KEY_INVALID); + __entry->action_type = nla_type(a); + __entry->action_len = nla_len(a); + __entry->action_data = nla_data(a); + __entry->is_last = nla_is_last(a, rem); + ), + + TP_printk("dpaddr=%p dp_name=%s dev=%s skbaddr=%p len=%u data_len=%u truesize=%u nr_frags=%d gso_size=%d gso_type=%#x ovs_flow_hash=0x%08x recirc_id=0x%08x keyaddr=%p eth_type=0x%04x ct_state=%02x ct_orig_proto=%02x ct_Zone=%04x flow_key_valid=%d action_type=%u action_len=%u action_data=%p is_last=%d", + __entry->dpaddr, __get_str(dp_name), __get_str(dev_name), + __entry->skbaddr, __entry->len, __entry->data_len, + __entry->truesize, __entry->nr_frags, __entry->gso_size, + __entry->gso_type, __entry->ovs_flow_hash, + __entry->recirc_id, __entry->keyaddr, __entry->key_eth_type, + __entry->key_ct_state, __entry->key_ct_orig_proto, + __entry->key_ct_zone, + __entry->flow_key_valid, + __entry->action_type, __entry->action_len, + __entry->action_data, __entry->is_last) +); + +TRACE_EVENT(ovs_dp_upcall, + + TP_PROTO(struct datapath *dp, struct sk_buff *skb, + const struct sw_flow_key *key, + const struct dp_upcall_info *upcall_info), + + TP_ARGS(dp, skb, key, upcall_info), + + TP_STRUCT__entry( + __field( void *, dpaddr ) + __string( dp_name, ovs_dp_name(dp) ) + __string( dev_name, skb->dev->name ) + __field( void *, skbaddr ) + __field( unsigned int, len ) + __field( unsigned int, data_len ) + __field( unsigned int, truesize ) + __field( u8, nr_frags ) + __field( u16, gso_size ) + __field( u16, gso_type ) + __field( u32, ovs_flow_hash ) + __field( u32, recirc_id ) + __field( const void *, keyaddr ) + __field( u16, key_eth_type ) + __field( u8, key_ct_state ) + __field( u8, key_ct_orig_proto ) + __field( u16, key_ct_zone ) + __field( unsigned int, flow_key_valid ) + __field( u8, upcall_cmd ) + __field( u32, upcall_port ) + __field( u16, upcall_mru ) + ), + + TP_fast_assign( + __entry->dpaddr = dp; + __assign_str(dp_name); + __assign_str(dev_name); + __entry->skbaddr = skb; + __entry->len = skb->len; + __entry->data_len = skb->data_len; + __entry->truesize = skb->truesize; + __entry->nr_frags = skb_shinfo(skb)->nr_frags; + __entry->gso_size = skb_shinfo(skb)->gso_size; + __entry->gso_type = skb_shinfo(skb)->gso_type; + __entry->ovs_flow_hash = key->ovs_flow_hash; + __entry->recirc_id = key->recirc_id; + __entry->keyaddr = key; + __entry->key_eth_type = key->eth.type; + __entry->key_ct_state = key->ct_state; + __entry->key_ct_orig_proto = key->ct_orig_proto; + __entry->key_ct_zone = key->ct_zone; + __entry->flow_key_valid = !(key->mac_proto & SW_FLOW_KEY_INVALID); + __entry->upcall_cmd = upcall_info->cmd; + __entry->upcall_port = upcall_info->portid; + __entry->upcall_mru = upcall_info->mru; + ), + + TP_printk("dpaddr=%p dp_name=%s dev=%s skbaddr=%p len=%u data_len=%u truesize=%u nr_frags=%d gso_size=%d gso_type=%#x ovs_flow_hash=0x%08x recirc_id=0x%08x keyaddr=%p eth_type=0x%04x ct_state=%02x ct_orig_proto=%02x ct_zone=%04x flow_key_valid=%d upcall_cmd=%u upcall_port=%u upcall_mru=%u", + __entry->dpaddr, __get_str(dp_name), __get_str(dev_name), + __entry->skbaddr, __entry->len, __entry->data_len, + __entry->truesize, __entry->nr_frags, __entry->gso_size, + __entry->gso_type, __entry->ovs_flow_hash, + __entry->recirc_id, __entry->keyaddr, __entry->key_eth_type, + __entry->key_ct_state, __entry->key_ct_orig_proto, + __entry->key_ct_zone, + __entry->flow_key_valid, + __entry->upcall_cmd, __entry->upcall_port, + __entry->upcall_mru) +); + +#endif /* _TRACE_OPENVSWITCH_H */ + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE openvswitch_trace +#include -- cgit v1.3.1