AI Trajectory

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch modifies mlx5_tc_ct_shared_counter_get() in drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c to fix a reference count leak. The mlx5 driver is a vendor-specific network driver for Mellanox ConnectX/BlueField NICs and SmartNICs, which requires physical hardware that is not emulated in standard QEMU/GCE virtualized environments. Consequently, the modified code is structurally unreachable for syzkaller fuzzing.",
  "WorthFuzzing": false
}

null

{
  "PatchDiff": "commit c49b7409a01c0ce368aa42ee326eda75822e22d1\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Sat Sep 19 08:45:00 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c\nindex 6c87a1c7db095..c1841ce74d9ac 100644\n--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c\n+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c\n@@ -1082,6 +1082,9 @@ mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv,\n \n \tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\n \n+\tif (rev_entry)\n+\t\tmlx5_tc_ct_entry_put(rev_entry);\n+\n create_counter:\n \n \tshared_counter = mlx5_tc_ct_counter_create(ct_priv);\n"
}

core

null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch modifies mlx5_tc_ct_shared_counter_get() in drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c to fix a reference count leak. The mlx5 driver is a vendor-specific network driver for Mellanox ConnectX/BlueField NICs and SmartNICs, which requires physical hardware that is not emulated in standard QEMU/GCE virtualized environments. Consequently, the modified code is structurally unreachable for syzkaller fuzzing.",
  "WorthFuzzing": false
}

You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.

================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.

- REACHABILITY IS THE PRIMARY GATE:
  Fuzzing can only discover bugs in code that can actually execute in standard virtualized
  environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
  If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
  regardless of whether it adds assertions or complex logic.

- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
  Patch authors routinely label changes as "cleanups", "refactorings", or state
  "No functional change intended". Do NOT take these claims at face value.
  Code refactorings that rearrange logic, introduce helper functions, or alter state management
  in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
  If reachable executable code is modified or refactored, it MUST be fuzzed.

- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
  When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
  BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
  Even if the author believes the invariant always holds, fuzzing is essential to verify whether
  an unusual sequence of operations can violate it.

================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:

- Non-kernel and non-executable changes:
  * Modifications to Documentation/, comments, or spelling fixes.
  * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
    that do not affect the compiled kernel image (vmlinux) or kernel modules.
  * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
    that do not alter control flow or data structures.
  * Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
  * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
    ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
  * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
    physical PCI hot-unplug or manual sysfs driver unbinding.
  * Code paths exclusive to architectures other than the target architecture.

================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
  * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
    BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
  * Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
  * Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
  * Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).

================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:

- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
  Do NOT list generic, ubiquitous functions called by almost every program in the corpus
  (including, but not limited to: general memory allocators and deallocators, page fault
  and trap handlers, or core synchronization primitives; this is not an exhaustive list).
  Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
  which severely dilutes fuzzing effort away from the actual changes.

- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
  List functions that specifically implement the logic being added or altered, or direct API entrypoints
  for the subsystem feature under review.

- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
  Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
  distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
  If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
  functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).

================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Target architecture: amd64

For your convenience, here is the diff of the changes:
commit c49b7409a01c0ce368aa42ee326eda75822e22d1
Author: syz-cluster <triage@syzkaller.com>
Date:   Sat Sep 19 08:45:00 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
index 6c87a1c7db095..c1841ce74d9ac 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
@@ -1082,6 +1082,9 @@ mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv,
 
 	spin_unlock_bh(&ct_priv->ht_lock);
 
+	if (rev_entry)
+		mlx5_tc_ct_entry_put(rev_entry);
+
 create_counter:
 
 	shared_counter = mlx5_tc_ct_counter_create(ct_priv);

gemini-3.8-flash

null

null

							input: 2928
							output: 37
							thoughts: 549
						

**Analyzing a Mellanox NIC Driver Patch for Fuzzing Potential**

Okay, so I'm looking at a patch that touches `drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c`. Specifically, it seems to be modifying some counter handling within the traffic control context. The diff is pretty small, looks like a potential resource management issue with an additional call to `mlx5_tc_ct_entry_put()`.

My initial thought is to quickly assess this for fuzzing potential, but I need to make sure I'm not wasting my time. The core triage guidelines have some negative criteria I need to keep in mind. Specifically, I need to check if this falls under "Structurally unreachable hardware". 

So, `mlx5` is Mellanox's ConnectX network adapter, right? That's right. Now the question is, *does* `mlx5` require the actual ConnectX hardware, or can I run this code, at least partially, in a simulated environment? Does it have any kind of mock or virtual device driver to use for tests? If it's pure hardware-dependent, I need to bail out. So, I need to verify that `mlx5` is *not* a "Structurally unreachable hardware" driver. I better start looking around that directory and searching for any indication of software/emulation support... or, alternatively, I need to find information that definitively proves this relies *only* on the hardware. Gotta check if it's purely physical hardware, or if there is some kind of virtual support.

{
  "Expression": "mlx5_core",
  "PathPrefix": "drivers/net/ethernet/mellanox/mlx5"
}

{
  "Output": "\nFull output is too long, showing 500 out of 19162 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/mellanox/mlx5/core/Kconfig=19=config MLX5_FPGA\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Kconfig-25-\t  and an FPGA chip on one board. If you select this option, the\ndrivers/net/ethernet/mellanox/mlx5/core/Kconfig:26:\t  mlx5_core driver will include the Innova FPGA core and allow building\ndrivers/net/ethernet/mellanox/mlx5/core/Kconfig-27-\t  sandbox-specific client drivers.\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile=7=subdir-ccflags-y += -I$(src)\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-8-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:9:obj-$(CONFIG_MLX5_CORE) += mlx5_core.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-10-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-13-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:14:mlx5_core-y :=\tmain.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-15-\t\thealth.o mcg.o cq.o alloc.o port.o mr.o pd.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-25-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:26:mlx5_core-$(CONFIG_MLX5_CORE_EN) += en/rqt.o en/tir.o en/rss.o en/rx_res.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-27-\t\ten/channels.o en_main.o en_common.o en_fs.o en_ethtool.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-37-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:38:mlx5_core-$(CONFIG_MLX5_EN_ARFS)     += en_arfs.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:39:mlx5_core-$(CONFIG_MLX5_EN_RXNFC)    += en_fs_ethtool.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:40:mlx5_core-$(CONFIG_MLX5_CORE_EN_DCB) += en_dcbnl.o en/port_buffer.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:41:mlx5_core-$(CONFIG_PCI_HYPERV_INTERFACE) += en/hv_vhca_stats.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:42:mlx5_core-$(CONFIG_MLX5_ESWITCH)     += lag/mp.o lag/port_sel.o lib/geneve.o lib/port_tun.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-43-\t\t\t\t\ten_rep.o en/rep/bond.o en/mod_hdr.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-44-\t\t\t\t\ten/mapping.o lag/mpesw.o lag/shared_fdb.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:45:mlx5_core-$(CONFIG_MLX5_CLS_ACT)     += en_tc.o en/rep/tc.o en/rep/neigh.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-46-\t\t\t\t\tlib/fs_chains.o en/tc_tun.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-52-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:53:mlx5_core-$(CONFIG_MLX5_CLS_ACT)     += en/tc/act/act.o en/tc/act/drop.o en/tc/act/trap.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-54-\t\t\t\t\ten/tc/act/accept.o en/tc/act/mark.o en/tc/act/goto.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile=61=ifneq ($(CONFIG_MLX5_TC_CT),)\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:62:\tmlx5_core-y\t\t\t     += en/tc_ct.o en/tc/ct_fs_dmfs.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:63:\tmlx5_core-$(CONFIG_MLX5_SW_STEERING) += en/tc/ct_fs_smfs.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:64:\tmlx5_core-$(CONFIG_MLX5_HW_STEERING) += en/tc/ct_fs_hmfs.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-65-endif\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-66-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:67:mlx5_core-$(CONFIG_MLX5_TC_SAMPLE)   += en/tc/sample.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-68-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-71-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:72:mlx5_core-$(CONFIG_MLX5_ESWITCH)   += eswitch.o eswitch_offloads.o eswitch_offloads_termtbl.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-73-\t\t\t\t      ecpf.o rdma.o esw/legacy.o esw/adj_vport.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-75-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:76:mlx5_core-$(CONFIG_MLX5_ESWITCH)   += esw/acl/helper.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-77-\t\t\t\t      esw/acl/egress_lgcy.o esw/acl/egress_ofld.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile=80=ifneq ($(CONFIG_MLX5_EN_IPSEC),)\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:81:\tmlx5_core-$(CONFIG_MLX5_ESWITCH)   += esw/ipsec_fs.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-82-endif\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-83-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:84:mlx5_core-$(CONFIG_MLX5_BRIDGE)    += esw/bridge.o esw/bridge_mcast.o esw/bridge_debugfs.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-85-\t\t\t\t      en/rep/bridge.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-86-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:87:mlx5_core-$(CONFIG_HWMON)          += hwmon.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:88:mlx5_core-$(CONFIG_MLX5_MPFS)      += lib/mpfs.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-89-ifneq ($(CONFIG_VXLAN),)\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:90:\tmlx5_core-y\t\t   += lib/vxlan.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-91-endif\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:92:mlx5_core-$(CONFIG_PTP_1588_CLOCK) += lib/clock.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:93:mlx5_core-$(CONFIG_PCI_HYPERV_INTERFACE) += lib/hv.o lib/hv_vhca.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-94-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-97-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:98:mlx5_core-$(CONFIG_MLX5_CORE_IPOIB) += ipoib/ipoib.o ipoib/ethtool.o ipoib/ipoib_vlan.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-99-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-102-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:103:mlx5_core-$(CONFIG_MLX5_FPGA) += fpga/cmd.o fpga/core.o fpga/conn.o fpga/sdk.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-104-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:105:mlx5_core-$(CONFIG_MLX5_MACSEC) += en_accel/macsec.o lib/macsec_fs.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-106-\t\t\t\t      en_accel/macsec_stats.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-107-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:108:mlx5_core-$(CONFIG_MLX5_EN_IPSEC) += en_accel/ipsec.o en_accel/ipsec_rxtx.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-109-\t\t\t\t     en_accel/ipsec_stats.o en_accel/ipsec_fs.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-111-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:112:mlx5_core-$(CONFIG_MLX5_EN_TLS) += en_accel/ktls_stats.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-113-\t\t\t\t   en_accel/fs_tcp.o en_accel/ktls.o en_accel/ktls_txrx.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-115-\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:116:mlx5_core-$(CONFIG_MLX5_EN_PSP) += en_accel/psp.o en_accel/psp_rxtx.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-117-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-120-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:121:mlx5_core-$(CONFIG_MLX5_SW_STEERING) += steering/sws/dr_domain.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-122-\t\t\t\t\tsteering/sws/dr_table.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-145-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:146:mlx5_core-$(CONFIG_MLX5_HW_STEERING) += steering/hws/cmd.o \\\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-147-\t\t\t\t\tsteering/hws/context.o \\\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-167-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:168:mlx5_core-$(CONFIG_MLX5_SF) += sf/vhca_event.o sf/dev/dev.o sf/dev/driver.o irq_affinity.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-169-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-172-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:173:mlx5_core-$(CONFIG_MLX5_SF_MANAGER) += sf/cmd.o sf/hw_table.o sf/devlink.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-174-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-177-#\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile:178:mlx5_core-$(CONFIG_PCIE_TPH) += lib/st.o\ndrivers/net/ethernet/mellanox/mlx5/core/Makefile-179-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-44-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:45:#include \"mlx5_core.h\"\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-46-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=51=struct mlx5_dma_pool {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-54-\tstruct list_head page_list;\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:55:\tstruct mlx5_core_dev *dev;\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-56-\tint node;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=72=struct mlx5_dma_pool_stats {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-82-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:83:static void *mlx5_dma_zalloc_coherent_node(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-84-\t\t\t\t\t   size_t size, dma_addr_t *dma_handle,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-86-{\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:87:\tstruct device *device = mlx5_core_dma_dev(dev);\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-88-\tstruct mlx5_priv *priv = \u0026dev-\u003epriv;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=102=static void mlx5_dma_pool_destroy(struct mlx5_dma_pool *pool)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-107-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:108:static struct mlx5_dma_pool *mlx5_dma_pool_create(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-109-\t\t\t\t\t\t  int node, u8 block_shift)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=126=mlx5_dma_pool_page_alloc(struct mlx5_dma_pool *pool)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-155-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:156:static void mlx5_dma_pool_page_free(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-157-\t\t\t\t    struct mlx5_dma_pool_page *page)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-158-{\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:159:\tdma_free_coherent(mlx5_core_dma_dev(dev), PAGE_SIZE, page-\u003ebuf,\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-160-\t\t\t  page-\u003edma);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=276=static struct mlx5_frag_buf_node_pools *\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:277:mlx5_frag_buf_node_pools_create(struct mlx5_core_dev *dev, int node)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-278-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=300=mlx5_frag_buf_dma_pools_debugfs_show(struct seq_file *file, void *priv)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-301-{\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:302:\tstruct mlx5_core_dev *dev = file-\u003eprivate;\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-303-\tint node;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=329=DEFINE_SHOW_ATTRIBUTE(mlx5_frag_buf_dma_pools_debugfs);\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-330-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:331:void mlx5_frag_buf_pools_cleanup(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-332-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-351-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:352:int mlx5_frag_buf_pools_init(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-353-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-380-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:381:int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-382-\t\t\t     struct mlx5_frag_buf *buf, int node)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=418=EXPORT_SYMBOL_GPL(mlx5_frag_buf_alloc_node);\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-419-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:420:void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-421-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=440=static int mlx5_db_dma_pools_debugfs_show(struct seq_file *file, void *priv)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-441-{\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:442:\tstruct mlx5_core_dev *dev = file-\u003eprivate;\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-443-\tint node;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=458=DEFINE_SHOW_ATTRIBUTE(mlx5_db_dma_pools_debugfs);\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-459-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:460:void mlx5_db_pools_cleanup(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-461-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-475-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:476:int mlx5_db_pools_init(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-477-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-503-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:504:int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db, int node)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-505-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c=526=EXPORT_SYMBOL_GPL(mlx5_db_alloc_node);\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-527-\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c:528:void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db)\ndrivers/net/ethernet/mellanox/mlx5/core/alloc.c-529-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-43-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:44:#include \"mlx5_core.h\"\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-45-#include \"lib/eq.h\"\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=283=static void poll_timeout(struct mlx5_cmd_work_ent *ent)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-284-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:285:\tstruct mlx5_core_dev *dev = container_of(ent-\u003ecmd, struct mlx5_core_dev, cmd);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-286-\tu64 cmd_to_ms = mlx5_tout_ms(dev, CMD);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=331=static void dump_buf(void *buf, int size, int data_only, int offset, int idx)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-346-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:347:static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-348-\t\t\t\t       u32 *synd, u8 *status)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-546-\tdefault:\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:547:\t\tmlx5_core_err(dev, \"Unknown FW command (%d)\\n\", op);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-548-\t\treturn -EINVAL;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=793=static int cmd_status_to_err(u8 status)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-816-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:817:void mlx5_cmd_out_err(struct mlx5_core_dev *dev, u16 opcode, u16 op_mod, void *out)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-818-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-821-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:822:\tmlx5_core_err_rl(dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-823-\t\t\t \"%s(0x%x) op_mod(0x%x) failed, status %s(0x%x), syndrome (0x%x), err(%d)\\n\",\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=827=EXPORT_SYMBOL(mlx5_cmd_out_err);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-828-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:829:static void cmd_status_print(struct mlx5_core_dev *dev, void *in, void *out)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-830-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-844-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:845:int mlx5_cmd_check(struct mlx5_core_dev *dev, int err, void *in, void *out)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-846-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=872=EXPORT_SYMBOL(mlx5_cmd_check);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-873-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:874:static void dump_command(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-875-\t\t\t struct mlx5_cmd_work_ent *ent, int input)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-885-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:886:\tmlx5_core_dbg(dev, \"cmd[%d]: start dump\\n\", ent-\u003eidx);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:887:\tdata_only = !!(mlx5_core_debug_mask \u0026 (1 \u003c\u003c MLX5_CMD_DATA));\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-888-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-889-\tif (data_only)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:890:\t\tmlx5_core_dbg_mask(dev, 1 \u003c\u003c MLX5_CMD_DATA,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-891-\t\t\t\t   \"cmd[%d]: dump command data %s(0x%x) %s\\n\",\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-894-\telse\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:895:\t\tmlx5_core_dbg(dev, \"cmd[%d]: dump command %s(0x%x) %s\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-896-\t\t\t      ent-\u003eidx, mlx5_command_str(op), op,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-917-\t\t} else {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:918:\t\t\tmlx5_core_dbg(dev, \"cmd[%d]: command block:\\n\", ent-\u003eidx);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-919-\t\t\tdump_buf(next-\u003ebuf, sizeof(struct mlx5_cmd_prot_block), 0, offset,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-928-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:929:\tmlx5_core_dbg(dev, \"cmd[%d]: end dump\\n\", ent-\u003eidx);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-930-}\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-931-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:932:static void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-933-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=934=static void cb_timeout_handler(struct work_struct *work)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-939-\t\t\t\t\t\t     cb_timeout_work);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:940:\tstruct mlx5_core_dev *dev = container_of(ent-\u003ecmd, struct mlx5_core_dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-941-\t\t\t\t\t\t cmd);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-946-\tif (!test_bit(MLX5_CMD_ENT_STATE_PENDING_COMP, \u0026ent-\u003estate)) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:947:\t\tmlx5_core_warn(dev, \"cmd[%d]: %s(0x%x) Async, recovered after timeout\\n\", ent-\u003eidx,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-948-\t\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-952-\tent-\u003eret = -ETIMEDOUT;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:953:\tmlx5_core_warn(dev, \"cmd[%d]: %s(0x%x) Async, timeout. Will cause a leak of a command resource\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-954-\t\t       ent-\u003eidx, mlx5_command_str(ent-\u003eop), ent-\u003eop);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-960-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:961:static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:962:static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-963-\t\t\t      struct mlx5_cmd_msg *msg);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=965=static bool opcode_allowed(struct mlx5_cmd *cmd, u16 opcode)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-972-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:973:bool mlx5_cmd_is_down(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-974-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=980=static void cmd_work_handler(struct work_struct *work)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-985-\tstruct mlx5_cmd_layout *lay;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:986:\tstruct mlx5_core_dev *dev;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-987-\tunsigned long timeout;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-993-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:994:\tdev = container_of(cmd, struct mlx5_core_dev, cmd);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-995-\ttimeout = msecs_to_jiffies(mlx5_tout_ms(dev, CMD));\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-998-\t\tif (down_timeout(\u0026cmd-\u003evars.sem, timeout)) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:999:\t\t\tmlx5_core_warn(dev, \"%s(0x%x) timed out while waiting for a slot.\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1000-\t\t\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1015-\t\tif (alloc_ret \u003c 0) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1016:\t\t\tmlx5_core_err_rl(dev, \"failed to allocate command entry\\n\");\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1017-\t\t\tif (ent-\u003ecallback) {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1072-\t/* ring doorbell after the descriptor is valid */\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1073:\tmlx5_core_dbg(dev, \"writing 0x%x to command doorbell\\n\", 1 \u003c\u003c ent-\u003eidx);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1074-\twmb();\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1140=enum {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1143-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1144:static void wait_func_handle_exec_timeout(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1145-\t\t\t\t\t  struct mlx5_cmd_work_ent *ent)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1156-\tif (wait_for_completion_timeout(\u0026ent-\u003edone, timeout)) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1157:\t\tmlx5_core_warn(dev, \"cmd[%d]: %s(0x%x) recovered after timeout\\n\", ent-\u003eidx,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1158-\t\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1161-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1162:\tmlx5_core_warn(dev, \"cmd[%d]: %s(0x%x) No done completion\\n\", ent-\u003eidx,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1163-\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1168-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1169:static int wait_func(struct mlx5_core_dev *dev, struct mlx5_cmd_work_ent *ent)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1170-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1191-\tif (err == -ETIMEDOUT) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1192:\t\tmlx5_core_warn(dev, \"%s(0x%x) timeout. Will cause a leak of a command resource\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1193-\t\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1194-\t} else if (err == -ECANCELED) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1195:\t\tmlx5_core_warn(dev, \"%s(0x%x) canceled on out of queue timeout.\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1196-\t\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1197-\t} else if (err == -EBUSY) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1198:\t\tmlx5_core_warn(dev, \"%s(0x%x) timeout while waiting for command semaphore.\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1199-\t\t\t       mlx5_command_str(ent-\u003eop), ent-\u003eop);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1200-\t}\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1201:\tmlx5_core_dbg(dev, \"err %d, delivery status %s(%d)\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1202-\t\t      err, deliv_status_to_str(ent-\u003estatus), ent-\u003estatus);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1215- */\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1216:static bool mlx5_cmd_all_stalled(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1217-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1258- */\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1259:static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1260-\t\t\t   struct mlx5_cmd_msg *out, void *uout, int uout_size,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1275-\tif (!page_queue \u0026\u0026 mlx5_cmd_all_stalled(dev)) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1276:\t\tmlx5_core_err_rl(dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1277-\t\t\t\t \"All CMD slots are stalled, aborting command\\n\");\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1306-\t} else if (!queue_work(cmd-\u003ewq, \u0026ent-\u003ework)) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1307:\t\tmlx5_core_warn(dev, \"failed to queue work\\n\");\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1308-\t\terr = -EALREADY;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1326-\t}\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1327:\tmlx5_core_dbg_mask(dev, 1 \u003c\u003c MLX5_CMD_TIME,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1328-\t\t\t   \"fw exec time for %s is %lld nsec\\n\",\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1337=static ssize_t dbg_write(struct file *filp, const char __user *buf,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1339-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1340:\tstruct mlx5_core_dev *dev = filp-\u003eprivate_data;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1341-\tstruct mlx5_cmd_debug *dbg = \u0026dev-\u003ecmd.dbg;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1404=static int mlx5_copy_from_msg(void *to, struct mlx5_cmd_msg *from, int size)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1436-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1437:static struct mlx5_cmd_mailbox *alloc_cmd_box(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1438-\t\t\t\t\t      gfp_t flags)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1448-\tif (!mailbox-\u003ebuf) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1449:\t\tmlx5_core_dbg(dev, \"failed allocation\\n\");\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1450-\t\tkfree(mailbox);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1457-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1458:static void free_cmd_box(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1459-\t\t\t struct mlx5_cmd_mailbox *mailbox)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1464-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1465:static struct mlx5_cmd_msg *mlx5_alloc_cmd_msg(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1466-\t\t\t\t\t       gfp_t flags, int size,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1485-\t\tif (IS_ERR(tmp)) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1486:\t\t\tmlx5_core_warn(dev, \"failed allocating block\\n\");\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1487-\t\t\terr = PTR_ERR(tmp);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1511-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1512:static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1513-\t\t\t      struct mlx5_cmd_msg *msg)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1526=static ssize_t data_write(struct file *filp, const char __user *buf,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1528-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1529:\tstruct mlx5_core_dev *dev = filp-\u003eprivate_data;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1530-\tstruct mlx5_cmd_debug *dbg = \u0026dev-\u003ecmd.dbg;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1550=static ssize_t data_read(struct file *filp, char __user *buf, size_t count,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1552-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1553:\tstruct mlx5_core_dev *dev = filp-\u003eprivate_data;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1554-\tstruct mlx5_cmd_debug *dbg = \u0026dev-\u003ecmd.dbg;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1570=static ssize_t outlen_read(struct file *filp, char __user *buf, size_t count,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1572-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1573:\tstruct mlx5_core_dev *dev = filp-\u003eprivate_data;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1574-\tstruct mlx5_cmd_debug *dbg = \u0026dev-\u003ecmd.dbg;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1585=static ssize_t outlen_write(struct file *filp, const char __user *buf,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1587-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1588:\tstruct mlx5_core_dev *dev = filp-\u003eprivate_data;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1589-\tstruct mlx5_cmd_debug *dbg = \u0026dev-\u003ecmd.dbg;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1621=static const struct file_operations olfops = {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1627-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1628:static void set_wqname(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1629-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1635-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1636:static void clean_debug_files(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1637-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1645-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1646:static void create_debugfs_files(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1647-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1658-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1659:void mlx5_cmd_allowed_opcode(struct mlx5_core_dev *dev, u16 opcode)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1660-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1674-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1675:static void mlx5_cmd_change_mod(struct mlx5_core_dev *dev, int mode)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1676-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1691=static int cmd_comp_notifier(struct notifier_block *nb,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1693-{\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1694:\tstruct mlx5_core_dev *dev;\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1695-\tstruct mlx5_cmd *cmd;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1698-\tcmd = mlx5_nb_cof(nb, struct mlx5_cmd, nb);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1699:\tdev = container_of(cmd, struct mlx5_core_dev, cmd);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1700-\teqe = data;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1708-}\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1709:void mlx5_cmd_use_events(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1710-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1715-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1716:void mlx5_cmd_use_polling(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1717-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1721-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1722:static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1723-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1734-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1735:static void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1736-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1765-\t\t\t\tif (!forced) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1766:\t\t\t\t\tmlx5_core_err(dev, \"Command completion arrived after timeout (entry idx = %d).\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1767-\t\t\t\t\t\t      ent-\u003eidx);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1793-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1794:\t\t\t\tmlx5_core_dbg(dev, \"command completed. ret 0x%x, delivery status %s(0x%x)\\n\",\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1795-\t\t\t\t\t      ent-\u003eret, deliv_status_to_str(ent-\u003estatus), ent-\u003estatus);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1838-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1839:static void mlx5_cmd_trigger_completions(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1840-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1863-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1864:\tmlx5_core_dbg(dev, \"vector 0x%llx\\n\", vector);\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1865-\tmlx5_cmd_comp_handler(dev, vector, true);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1873-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1874:void mlx5_cmd_flush(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1875-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1896-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1897:static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1898-\t\t\t\t      gfp_t gfp)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c=1935=static int is_manage_pages(void *in)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1939-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1940:static bool mlx5_has_privileged_uid(struct mlx5_core_dev *dev)\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1941-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1944-\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1945:static bool mlx5_cmd_is_privileged_uid(struct mlx5_core_dev *dev,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1946-\t\t\t\t       u16 uid)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1954- */\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:1955:static int cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1956-\t\t    int out_size, mlx5_cmd_cbk_t callback, void *context,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c-1999-\tif (err) {\ndrivers/net/ethernet/mellanox/mlx5/core/cmd.c:2000:\t\tmlx5_core_warn(dev, \"err %d\\n\", err);\n\n"
}

gemini-3.8-flash

null

null

							input: 18840
							output: 52
							thoughts: 73
						

Here's my take on that code snippet:

**Diving into the MLX5 TC Connection Tracking Offload**

Okay, so I'm looking at `drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c`. Immediately, I recognize this is about the Mellanox driver's connection tracking offload for Traffic Control. That's a key part of how this hardware accelerates network flows, so it warrants a closer look. My primary interest now is understanding the initialization and registration process for this functionality. I want to see how the connection tracking offload is set up and integrated within the mlx5 driver's architecture. I'll focus on `tc_ct.c` to trace through its registration and initialization steps.

{
  "File": "drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c",
  "FirstLine": 1070,
  "LineCount": 35
}

{
  "Contents": "1070:\t\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\n1071:\t\t\tgoto create_counter;\n1072:\t\t}\n1073:\t\n1074:\t\tif (rev_entry \u0026\u0026 refcount_inc_not_zero(\u0026rev_entry-\u003ecounter-\u003erefcount)) {\n1075:\t\t\tct_dbg(\"Using shared counter entry=0x%p rev=0x%p\", entry, rev_entry);\n1076:\t\t\tshared_counter = rev_entry-\u003ecounter;\n1077:\t\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\n1078:\t\n1079:\t\t\tmlx5_tc_ct_entry_put(rev_entry);\n1080:\t\t\treturn shared_counter;\n1081:\t\t}\n1082:\t\n1083:\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\n1084:\t\n1085:\t\tif (rev_entry)\n1086:\t\t\tmlx5_tc_ct_entry_put(rev_entry);\n1087:\t\n1088:\tcreate_counter:\n1089:\t\n1090:\t\tshared_counter = mlx5_tc_ct_counter_create(ct_priv);\n1091:\t\tif (IS_ERR(shared_counter))\n1092:\t\t\treturn shared_counter;\n1093:\t\n1094:\t\tshared_counter-\u003eis_shared = true;\n1095:\t\trefcount_set(\u0026shared_counter-\u003erefcount, 1);\n1096:\t\treturn shared_counter;\n1097:\t}\n1098:\t\n1099:\tstatic int\n1100:\tmlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv,\n1101:\t\t\t\t   struct flow_rule *flow_rule,\n1102:\t\t\t\t   struct mlx5_ct_entry *entry,\n1103:\t\t\t\t   u8 zone_restore_id)\n1104:\t{\n"
}

gemini-3.8-flash

null

null

							input: 19670
							output: 39
							thoughts: 316
						

**Analyzing `mlx5_tc_ct_shared_counter_get` for Fuzzing Potential**

Okay, let's break this down. We're looking at `mlx5_tc_ct_shared_counter_get`. First, the question is whether `mlx5` is a driver for a physical network device. Right, that's the key. Now, the criteria for excluding fuzzing are in Section 2. We're looking specifically at whether the code falls under "Structurally unreachable hardware." That's the crucial part. It mentions "Vendor-specific PCIe switches, SmartNICs, or GPU drivers... requiring physical ASIC/PCIe cards not emulated in standard QEMU."

Ah, Mellanox... *Mellanox ConnectX NICs* - that's `drivers/net/ethernet/mellanox/mlx5`.  Okay, that's the core driver for ConnectX-4 and later Ethernet NICs. Can QEMU emulate mlx5? No, definitely not standard QEMU. That's a dealbreaker. QEMU *doesn't* emulate ConnectX-4/5/6.  Can mlx5 even be probed or instantiated without the physical PCIe hardware? Need to investigate.

Okay, let's think... Is there any sort of virtual bus or software device for mlx5? Like netdevsim perhaps? No, `netdevsim` is a completely separate thing, under `drivers/net/netdevsim`. That's not it. Wait... what about mlx5 subfunctions (SF)? Right, MLX5_SF *requires* a physical mlx5 device, a PCI function!  So, it seems to be dependent on physical hardware. I'll search for `pci_register_driver` in the `mlx5` directory to verify that it's relying on registering a PCI driver.

{
  "Expression": "pci_register_driver",
  "PathPrefix": "drivers/net/ethernet/mellanox/mlx5"
}

{
  "Output": "drivers/net/ethernet/mellanox/mlx5/core/main.c=2342=static int __init mlx5_init(void)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2361-\ndrivers/net/ethernet/mellanox/mlx5/core/main.c:2362:\terr = pci_register_driver(\u0026mlx5_core_driver);\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2363-\tif (err)\n"
}

gemini-3.8-flash

null

null

							input: 20581
							output: 40
							thoughts: 37
						

Here's my summary, as though I'm thinking through this process:

**Diving into the mlx5_core_driver Registration**

Okay, so we're looking at the registration of the `mlx5_core_driver`. I know it's registered through the `pci_register_driver` function, which is the standard procedure for PCI drivers. That's good, predictable behavior. Now, the next logical step is to examine the PCI device table for this driver. I need to understand what devices this driver is designed to handle. This is the starting point for really digging into how it interacts with the hardware, what vendor and device IDs it's bound to, and ultimately, how it's going to function within the system. Let's see what the PCI device table reveals.

no matches

{
  "Expression": "mlx5_pci_table",
  "PathPrefix": "drivers/net/ethernet/mellanox/mlx5"
}

{
  "error": "no matches"
}

gemini-3.8-flash

null

null

							input: 20842
							output: 48
							thoughts: 18
						

Here's my summary, as though I'm thinking through this process:

**Diving into the mlx5_core_driver**

Okay, time to get my hands dirty. I'm going to start by taking a look at `mlx5_core_driver` in `main.c`. It's the logical starting point, considering this is the core of the Mellanox driver. This is where I'd expect the initialization, entry points, and overall architecture to be defined. I'll be looking for the standard driver registration functions, probe and detach routines, and how it handles the device context lifecycle. I want to see how it interacts with the underlying hardware, how it exposes its functionality to the higher networking layers, and how it handles potential errors. This should provide a clear picture of how the driver is structured and how it manages the hardware resources.

{
  "File": "drivers/net/ethernet/mellanox/mlx5/core/main.c",
  "FirstLine": 2300,
  "LineCount": 50
}

{
  "Contents": "2300:\tstruct mlx5_core_dev *mlx5_vf_get_core_dev(struct pci_dev *pdev)\n2301:\t{\n2302:\t\tstruct mlx5_core_dev *mdev;\n2303:\t\n2304:\t\tmdev = pci_iov_get_pf_drvdata(pdev, \u0026mlx5_core_driver);\n2305:\t\tif (IS_ERR(mdev))\n2306:\t\t\treturn NULL;\n2307:\t\n2308:\t\tmutex_lock(\u0026mdev-\u003eintf_state_mutex);\n2309:\t\tif (!test_bit(MLX5_INTERFACE_STATE_UP, \u0026mdev-\u003eintf_state)) {\n2310:\t\t\tmutex_unlock(\u0026mdev-\u003eintf_state_mutex);\n2311:\t\t\treturn NULL;\n2312:\t\t}\n2313:\t\n2314:\t\treturn mdev;\n2315:\t}\n2316:\tEXPORT_SYMBOL(mlx5_vf_get_core_dev);\n2317:\t\n2318:\t/**\n2319:\t * mlx5_vf_put_core_dev - Put the mlx5 core device back.\n2320:\t * @mdev: The mlx5 core device.\n2321:\t *\n2322:\t * Upon return the interface state lock is unlocked and caller should not\n2323:\t * access the mdev any more.\n2324:\t */\n2325:\tvoid mlx5_vf_put_core_dev(struct mlx5_core_dev *mdev)\n2326:\t{\n2327:\t\tmutex_unlock(\u0026mdev-\u003eintf_state_mutex);\n2328:\t}\n2329:\tEXPORT_SYMBOL(mlx5_vf_put_core_dev);\n2330:\t\n2331:\tstatic void mlx5_core_verify_params(void)\n2332:\t{\n2333:\t\tif (prof_sel \u003e= ARRAY_SIZE(profile)) {\n2334:\t\t\tpr_warn(\"mlx5_core: WARNING: Invalid module parameter prof_sel %d, valid range 0-%zu, changing back to default(%d)\\n\",\n2335:\t\t\t\tprof_sel,\n2336:\t\t\t\tARRAY_SIZE(profile) - 1,\n2337:\t\t\t\tMLX5_DEFAULT_PROF);\n2338:\t\t\tprof_sel = MLX5_DEFAULT_PROF;\n2339:\t\t}\n2340:\t}\n2341:\t\n2342:\tstatic int __init mlx5_init(void)\n2343:\t{\n2344:\t\tint err;\n2345:\t\n2346:\t\tWARN_ONCE(strcmp(MLX5_ADEV_NAME, KBUILD_MODNAME),\n2347:\t\t\t  \"mlx5_core name not in sync with kernel module name\");\n2348:\t\n2349:\t\tget_random_bytes(\u0026sw_owner_id, sizeof(sw_owner_id));\n"
}

gemini-3.8-flash

null

null

							input: 21898
							output: 45
							thoughts: 15
						

Here's my attempt at summarizing the thought process, tailored for an expert audience:

**Investigating `mlx5_core_driver`**

Okay, so I'm diving into the `mlx5_core_driver` definition. Right away, I'm thinking about the layers involved here. Is this the base driver, or a specific variant? Knowing Mellanox's ecosystem, I'm assuming it's probably the core driver for their ConnectX adapters, but I need to confirm. My immediate next thought is to look at where this is used within the overall system. What modules is it interfacing with? Is this the userspace driver or is it inside the kernel? I am thinking I need to find its location inside the code, to identify the data structure that it points to. Finally, I need to look into whether it is handling the PCIe bus directly, or is it working with some other type of abstraction. This will give me a better understanding of its role in network performance and its potential bottlenecks.

{
  "Expression": "struct pci_driver mlx5_core_driver",
  "PathPrefix": "drivers/net/ethernet/mellanox/mlx5"
}

{
  "Output": "drivers/net/ethernet/mellanox/mlx5/core/main.c=2264=int mlx5_recover_device(struct mlx5_core_dev *dev)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2274-\ndrivers/net/ethernet/mellanox/mlx5/core/main.c:2275:static struct pci_driver mlx5_core_driver = {\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2276-\t.name           = KBUILD_MODNAME,\n"
}

gemini-3.8-flash

null

null

							input: 22333
							output: 48
							thoughts: 37
						

Here's my attempt at summarizing the thought process, as if I were an expert:

**Diving into the mlx5 Core Code**

Alright, let's get down to brass tacks. I need to understand something specific about the Mellanox driver's Ethernet implementation, so I'm going straight to the source. Line numbers are my bread and butter. I'm focusing on lines 2270 through 2295 of `drivers/net/ethernet/mellanox/mlx5/core/main.c`. This is where the real magic happens, so it's likely to reveal the intricacies of what I'm looking for. It could be related to initialization, flow control, or interrupt handling – I'll know more once I'm there. I'll be looking closely at the data structures, function calls, and any potential locking mechanisms used. These lines should offer a solid glimpse into the critical functionality I need to understand better. Hopefully this section contains what I'm expecting.

{
  "File": "drivers/net/ethernet/mellanox/mlx5/core/main.c",
  "FirstLine": 2270,
  "LineCount": 30
}

{
  "Contents": "2270:\t\t}\n2271:\t\n2272:\t\treturn mlx5_load_one_devl_locked(dev, true);\n2273:\t}\n2274:\t\n2275:\tstatic struct pci_driver mlx5_core_driver = {\n2276:\t\t.name           = KBUILD_MODNAME,\n2277:\t\t.id_table       = mlx5_core_pci_table,\n2278:\t\t.probe          = probe_one,\n2279:\t\t.remove         = remove_one,\n2280:\t\t.suspend        = mlx5_suspend,\n2281:\t\t.resume         = mlx5_resume,\n2282:\t\t.shutdown\t= shutdown,\n2283:\t\t.err_handler\t= \u0026mlx5_err_handler,\n2284:\t\t.sriov_configure   = mlx5_core_sriov_configure,\n2285:\t\t.sriov_get_vf_total_msix = mlx5_sriov_get_vf_total_msix,\n2286:\t\t.sriov_set_msix_vec_count = mlx5_core_sriov_set_msix_vec_count,\n2287:\t};\n2288:\t\n2289:\t/**\n2290:\t * mlx5_vf_get_core_dev - Get the mlx5 core device from a given VF PCI device if\n2291:\t *                     mlx5_core is its driver.\n2292:\t * @pdev: The associated PCI device.\n2293:\t *\n2294:\t * Upon return the interface state lock stay held to let caller uses it safely.\n2295:\t * Caller must ensure to use the returned mlx5 device for a narrow window\n2296:\t * and put it back with mlx5_vf_put_core_dev() immediately once usage was over.\n2297:\t *\n2298:\t * Return: Pointer to the associated mlx5_core_dev or NULL.\n2299:\t */\n"
}

gemini-3.8-flash

null

null

							input: 23186
							output: 42
							thoughts: 35
						

Here's my take on those thoughts:

**Analyzing the mlx5_core_pci_table**

Alright, let's dive in. My immediate focus is on `mlx5_core_pci_table`. I need to figure out the specifics of this table, and right now, what's really key is understanding its contents. I'm drilling down to the PCI IDs that are actually *in* the table. Identifying these IDs is crucial for understanding device support and how the system interacts with the Mellanox hardware. I'm expecting this information to be fundamental for device initialization and driver association. Knowing the specific IDs allows me to determine which devices are supported and how they're identified at a hardware level.

{
  "Expression": "mlx5_core_pci_table",
  "PathPrefix": "drivers/net/ethernet/mellanox/mlx5"
}

{
  "Output": "drivers/net/ethernet/mellanox/mlx5/core/main.c=2212=static int mlx5_resume(struct pci_dev *pdev)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2218-\ndrivers/net/ethernet/mellanox/mlx5/core/main.c:2219:static const struct pci_device_id mlx5_core_pci_table[] = {\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2220-\t{ PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTIB) },\n--\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2255-\ndrivers/net/ethernet/mellanox/mlx5/core/main.c:2256:MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table);\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2257-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/main.c=2275=static struct pci_driver mlx5_core_driver = {\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2276-\t.name           = KBUILD_MODNAME,\ndrivers/net/ethernet/mellanox/mlx5/core/main.c:2277:\t.id_table       = mlx5_core_pci_table,\ndrivers/net/ethernet/mellanox/mlx5/core/main.c-2278-\t.probe          = probe_one,\n"
}

gemini-3.8-flash

null

null

							input: 23859
							output: 48
							thoughts: 22
						

Here's a summary of my immediate thought process, focusing on the technical aspect you're interested in:

**Diving into `mlx5_core_pci_table` in `main.c`**

Alright, time to get down to brass tacks. My initial thought is to zero in on the `mlx5_core_pci_table` – I need to understand its contents and how it's being used within the `main.c` context. I'm assuming, given the name, that this is likely where the PCI device ID and associated information for Mellanox (mlx5) devices are defined or accessed. I'll need to quickly confirm its structure: is it a static table? An array of structures? Maybe a lookup table based on PCI vendor/device IDs? My primary goal is to understand how the system is identifying and configuring these NICs at a fundamental level. I'll be looking for things like device ID definitions, driver binding information, and potentially any relevant configuration data associated with the PCI device. I'll need to parse the code thoroughly and identify how this data is being accessed and used, looking at how it might affect boot/initialization, and whether there are any potential points of interest for further analysis.

{
  "File": "drivers/net/ethernet/mellanox/mlx5/core/main.c",
  "FirstLine": 2219,
  "LineCount": 40
}

{
  "Contents": "2219:\tstatic const struct pci_device_id mlx5_core_pci_table[] = {\n2220:\t\t{ PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTIB) },\n2221:\t\t{ PCI_VDEVICE(MELLANOX, 0x1012),\n2222:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* Connect-IB VF */\n2223:\t\t{ PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTX4) },\n2224:\t\t{ PCI_VDEVICE(MELLANOX, 0x1014),\n2225:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* ConnectX-4 VF */\n2226:\t\t{ PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX) },\n2227:\t\t{ PCI_VDEVICE(MELLANOX, 0x1016),\n2228:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* ConnectX-4LX VF */\n2229:\t\t{ PCI_VDEVICE(MELLANOX, 0x1017) },\t\t\t/* ConnectX-5, PCIe 3.0 */\n2230:\t\t{ PCI_VDEVICE(MELLANOX, 0x1018),\n2231:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* ConnectX-5 VF */\n2232:\t\t{ PCI_VDEVICE(MELLANOX, 0x1019) },\t\t\t/* ConnectX-5 Ex */\n2233:\t\t{ PCI_VDEVICE(MELLANOX, 0x101a),\n2234:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* ConnectX-5 Ex VF */\n2235:\t\t{ PCI_VDEVICE(MELLANOX, 0x101b) },\t\t\t/* ConnectX-6 */\n2236:\t\t{ PCI_VDEVICE(MELLANOX, 0x101c),\n2237:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* ConnectX-6 VF */\n2238:\t\t{ PCI_VDEVICE(MELLANOX, 0x101d) },\t\t\t/* ConnectX-6 Dx */\n2239:\t\t{ PCI_VDEVICE(MELLANOX, 0x101e),\n2240:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* ConnectX Family mlx5Gen Virtual Function */\n2241:\t\t{ PCI_VDEVICE(MELLANOX, 0x101f) },\t\t\t/* ConnectX-6 LX */\n2242:\t\t{ PCI_VDEVICE(MELLANOX, 0x1021) },\t\t\t/* ConnectX-7 */\n2243:\t\t{ PCI_VDEVICE(MELLANOX, 0x1023) },\t\t\t/* ConnectX-8 */\n2244:\t\t{ PCI_VDEVICE(MELLANOX, 0x1025) },\t\t\t/* ConnectX-9 */\n2245:\t\t{ PCI_VDEVICE(MELLANOX, 0x1027) },\t\t\t/* ConnectX-10 */\n2246:\t\t{ PCI_VDEVICE(MELLANOX, 0x2101) },\t\t\t/* ConnectX-10 NVLink-C2C */\n2247:\t\t{ PCI_VDEVICE(MELLANOX, 0xa2d2) },\t\t\t/* BlueField integrated ConnectX-5 network controller */\n2248:\t\t{ PCI_VDEVICE(MELLANOX, 0xa2d3),\n2249:\t\t  .driver_data = MLX5_PCI_DEV_IS_VF },\t\t\t/* BlueField integrated ConnectX-5 network controller VF */\n2250:\t\t{ PCI_VDEVICE(MELLANOX, 0xa2d6) },\t\t\t/* BlueField-2 integrated ConnectX-6 Dx network controller */\n2251:\t\t{ PCI_VDEVICE(MELLANOX, 0xa2dc) },\t\t\t/* BlueField-3 integrated ConnectX-7 network controller */\n2252:\t\t{ PCI_VDEVICE(MELLANOX, 0xa2df) },\t\t\t/* BlueField-4 integrated ConnectX-8 network controller */\n2253:\t\t{ }\n2254:\t};\n2255:\t\n2256:\tMODULE_DEVICE_TABLE(pci, mlx5_core_pci_table);\n2257:\t\n2258:\tvoid mlx5_disable_device(struct mlx5_core_dev *dev)\n"
}

gemini-3.8-flash

null

null

							input: 25416
							output: 21
							thoughts: 621
						

**My Analysis of the Patch**

Okay, so I'm looking at this patch and immediately, my expert eye focuses on the context. The `mlx5_core_pci_table` clearly identifies the devices: Mellanox Connect-IB, ConnectX-4 through ConnectX-10, and BlueField 1-4. These are all vendor-specific physical ASIC / SmartNIC / PCIe cards – the Mellanox ConnectX and BlueField families. Right away, I know these aren't emulated within QEMU.

Then I double-check the instructions, specifically Section 2, because that's always a good practice. And there it is: "Structurally unreachable hardware: * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU." Bingo. Mellanox `mlx5` is explicitly mentioned in there! It's a high-performance NIC driver, meaning it definitely needs that physical hardware, not QEMU emulation.

Now, let's get into the patch itself. The diff shows only one file modified: `drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c`. Okay, so it’s localized. The core of this seems to be fixing a reference leak on `rev_entry` within the `mlx5_tc_ct_shared_counter_get()` function. Pretty straightforward, a classic memory management issue. No red flags here yet, just a standard cleanup.

However, just to be thorough and because it’s a good habit, I'm going to run one final quick check. Since we’re dealing with the `mlx5` driver, which is a significant component in the networking stack, I need to make certain that `mlx5_tc_ct_shared_counter_get()` or any code within `tc_ct.c` is *not* called from an environment like netdevsim or any software or mocking framework that *could* potentially simulate the `mlx5` hardware. That would change things dramatically, so I will now verify if there is any code outside mlx5 that might call these functions.

{
  "Expression": "mlx5_tc_ct_"
}

{
  "Output": "\nFull output is too long, showing 500 out of 846 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c=700=void mlx5e_rep_tc_receive(struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c-706-\tstruct mlx5e_rep_priv *uplink_rpriv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c:707:\tstruct mlx5_tc_ct_priv *ct_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c-708-\tstruct mapping_ctx *mapping_ctx;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h=15=struct mlx5e_tc_act_parse_state {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h-29-\tint if_count;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h:30:\tstruct mlx5_tc_ct_priv *ct_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h-31-};\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c=19=tc_act_parse_ct(struct mlx5e_tc_act_parse_state *parse_state,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c-25-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c:26:\terr = mlx5_tc_ct_parse_action(parse_state-\u003ect_priv, attr, act, parse_state-\u003eextack);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c-27-\tif (err)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c=41=tc_act_post_parse_ct(struct mlx5e_tc_act_parse_state *parse_state,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c-47-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c:48:\treturn mlx5_tc_ct_flow_offload(parse_state-\u003ect_priv, attr);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c-49-}\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-51-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:52:struct mlx5_tc_ct_debugfs {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-53-\tstruct {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-60-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:61:struct mlx5_tc_ct_priv {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-62-\tstruct mlx5_core_dev *dev;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-84-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:85:\tstruct mlx5_tc_ct_debugfs debugfs;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-86-};\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=88=struct mlx5_ct_zone_rule {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-94-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:95:struct mlx5_tc_ct_pre {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-96-\tstruct mlx5_flow_table *ft;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=104=struct mlx5_ct_ft {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-109-\tstruct nf_flowtable *nf_ft;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:110:\tstruct mlx5_tc_ct_priv *ct_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-111-\tstruct rhashtable ct_entries_ht;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:112:\tstruct mlx5_tc_ct_pre pre_ct;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:113:\tstruct mlx5_tc_ct_pre pre_ct_nat;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-114-};\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=150=struct mlx5_ct_entry {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-160-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:161:\tstruct mlx5_tc_ct_priv *ct_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-162-\tstruct work_struct work;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=168=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:169:mlx5_tc_ct_entry_destroy_mod_hdr(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-170-\t\t\t\t struct mlx5_flow_attr *attr,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=204=static bool\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:205:mlx5_tc_ct_entry_in_ct_table(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-206-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=210=static bool\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:211:mlx5_tc_ct_entry_in_ct_nat_table(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-212-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=216=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:217:mlx5_get_label_mapping(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-218-\t\t       u32 *labels, u32 *id)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=231=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:232:mlx5_put_label_mapping(struct mlx5_tc_ct_priv *ct_priv, u32 id)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-233-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=238=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:239:mlx5_tc_ct_rule_to_tuple(struct mlx5_ct_tuple *tuple, struct flow_rule *rule)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-240-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=288=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:289:mlx5_tc_ct_rule_to_tuple_nat(struct mlx5_ct_tuple *tuple,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-290-\t\t\t     struct flow_rule *rule)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=350=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:351:mlx5_tc_ct_get_flow_source_match(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-352-\t\t\t\t struct net_device *ndev)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-365-\tif (is_vlan_dev(ndev))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:366:\t\treturn mlx5_tc_ct_get_flow_source_match(ct_priv, vlan_dev_real_dev(ndev));\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-367-\tif (netif_is_macvlan(ndev))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:368:\t\treturn mlx5_tc_ct_get_flow_source_match(ct_priv, macvlan_dev_real_dev(ndev));\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-369-\tif (mlx5e_get_tc_tun(ndev) || netif_is_lag_master(ndev))\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=375=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:376:mlx5_tc_ct_set_tuple_match(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-377-\t\t\t   struct mlx5_flow_spec *spec,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-498-\t\t\t\tspec-\u003eflow_context.flow_source =\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:499:\t\t\t\t\tmlx5_tc_ct_get_flow_source_match(ct_priv, dev);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-500-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=508=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:509:mlx5_tc_ct_counter_put(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-510-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=519=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:520:mlx5_tc_ct_entry_del_rule(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-521-\t\t\t  struct mlx5_ct_entry *entry,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-529-\tct_priv-\u003efs_ops-\u003ect_rule_del(ct_priv-\u003efs, zone_rule-\u003erule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:530:\tmlx5_tc_ct_entry_destroy_mod_hdr(ct_priv, zone_rule-\u003eattr, zone_rule-\u003emh);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-531-\tmlx5_put_label_mapping(ct_priv, attr-\u003ect_attr.ct_labels_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=535=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:536:mlx5_tc_ct_entry_del_rules(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-537-\t\t\t   struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-538-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:539:\tif (mlx5_tc_ct_entry_in_ct_nat_table(entry))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:540:\t\tmlx5_tc_ct_entry_del_rule(ct_priv, entry, true);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:541:\tif (mlx5_tc_ct_entry_in_ct_table(entry))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:542:\t\tmlx5_tc_ct_entry_del_rule(ct_priv, entry, false);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-543-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=547=static struct flow_action_entry *\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:548:mlx5_tc_ct_get_ct_metadata_action(struct flow_rule *flow_rule)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-549-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=562=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:563:mlx5_tc_ct_entry_set_registers(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-564-\t\t\t       struct mlx5e_tc_mod_hdr_acts *mod_acts,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=607=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:608:mlx5_tc_ct_parse_mangle_to_mod_act(struct flow_action_entry *act,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-609-\t\t\t\t   char *modact)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=678=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:679:mlx5_tc_ct_entry_create_nat(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-680-\t\t\t    struct flow_rule *flow_rule,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-695-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:696:\t\t\terr = mlx5_tc_ct_parse_mangle_to_mod_act(act, modact);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-697-\t\t\tif (err)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=715=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:716:mlx5_tc_ct_entry_create_mod_hdr(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-717-\t\t\t\tstruct mlx5_flow_attr *attr,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-728-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:729:\tmeta = mlx5_tc_ct_get_ct_metadata_action(flow_rule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-730-\tif (!meta)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-739-\t\tif (has_nat) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:740:\t\t\terr = mlx5_tc_ct_entry_create_nat(ct_priv, flow_rule, \u0026mod_acts);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-741-\t\t\tif (err)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-750-\tct_state |= meta-\u003ect_metadata.orig_dir ? 0 : MLX5_CT_STATE_REPLY_BIT;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:751:\terr = mlx5_tc_ct_entry_set_registers(ct_priv, \u0026mod_acts,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-752-\t\t\t\t\t     ct_state,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=790=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:791:mlx5_tc_ct_entry_destroy_mod_hdr(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-792-\t\t\t\t struct mlx5_flow_attr *attr,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=801=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:802:mlx5_tc_ct_entry_add_rule(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-803-\t\t\t  struct flow_rule *flow_rule,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-824-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:825:\terr = mlx5_tc_ct_entry_create_mod_hdr(ct_priv, attr, flow_rule,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-826-\t\t\t\t\t      \u0026zone_rule-\u003emh,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-828-\t\t\t\t\t      nat,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:829:\t\t\t\t\t      mlx5_tc_ct_entry_in_ct_nat_table(entry));\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-830-\tif (err) {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-850-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:851:\tmlx5_tc_ct_set_tuple_match(ct_priv, spec, flow_rule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-852-\tmlx5e_tc_match_to_reg_match(spec, ZONE_TO_REG, entry-\u003etuple.zone, MLX5_CT_ZONE_MASK);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-868-err_rule:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:869:\tmlx5_tc_ct_entry_destroy_mod_hdr(ct_priv, attr, zone_rule-\u003emh);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-870-\tmlx5_put_label_mapping(ct_priv, attr-\u003ect_attr.ct_labels_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=878=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:879:mlx5_tc_ct_entry_update_rule(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-880-\t\t\t     struct flow_rule *flow_rule,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-900-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:901:\terr = mlx5_tc_ct_entry_create_mod_hdr(ct_priv, attr, flow_rule, \u0026mh, zone_restore_id,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:902:\t\t\t\t\t      nat, mlx5_tc_ct_entry_in_ct_nat_table(entry));\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-903-\tif (err) {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-907-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:908:\tmlx5_tc_ct_set_tuple_match(ct_priv, spec, flow_rule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-909-\tmlx5e_tc_match_to_reg_match(spec, ZONE_TO_REG, entry-\u003etuple.zone, MLX5_CT_ZONE_MASK);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-916-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:917:\tmlx5_tc_ct_entry_destroy_mod_hdr(ct_priv, old_attr, zone_rule-\u003emh);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-918-\tzone_rule-\u003emh = mh;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-927-err_rule:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:928:\tmlx5_tc_ct_entry_destroy_mod_hdr(ct_priv, zone_rule-\u003eattr, mh);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-929-\tmlx5_put_label_mapping(ct_priv, attr-\u003ect_attr.ct_labels_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=938=static bool\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:939:mlx5_tc_ct_entry_valid(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-940-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=944=static struct mlx5_ct_entry *\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:945:mlx5_tc_ct_entry_get(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_tuple *tuple)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-946-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-950-\t\t\t\t       tuples_ht_params);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:951:\tif (entry \u0026\u0026 mlx5_tc_ct_entry_valid(entry) \u0026\u0026\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-952-\t    refcount_inc_not_zero(\u0026entry-\u003erefcnt)) {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-956-\t\t\t\t\t       tuple, tuples_nat_ht_params);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:957:\t\tif (entry \u0026\u0026 mlx5_tc_ct_entry_valid(entry) \u0026\u0026\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-958-\t\t    refcount_inc_not_zero(\u0026entry-\u003erefcnt))\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-964-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:965:static void mlx5_tc_ct_entry_remove_from_tuples(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-966-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:967:\tstruct mlx5_tc_ct_priv *ct_priv = entry-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-968-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:969:\tif (mlx5_tc_ct_entry_in_ct_nat_table(entry))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-970-\t\trhashtable_remove_fast(\u0026ct_priv-\u003ect_tuples_nat_ht,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-972-\t\t\t\t       tuples_nat_ht_params);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:973:\tif (mlx5_tc_ct_entry_in_ct_table(entry))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-974-\t\trhashtable_remove_fast(\u0026ct_priv-\u003ect_tuples_ht, \u0026entry-\u003etuple_node,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-977-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:978:static void mlx5_tc_ct_entry_del(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-979-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:980:\tstruct mlx5_tc_ct_priv *ct_priv = entry-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-981-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:982:\tmlx5_tc_ct_entry_del_rules(ct_priv, entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-983-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-984-\tspin_lock_bh(\u0026ct_priv-\u003eht_lock);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:985:\tmlx5_tc_ct_entry_remove_from_tuples(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-986-\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-987-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:988:\tmlx5_tc_ct_counter_put(ct_priv, entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-989-\tkfree(entry);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=992=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:993:mlx5_tc_ct_entry_put(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-994-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-997-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:998:\tmlx5_tc_ct_entry_del(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-999-}\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1000-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1001:static void mlx5_tc_ct_entry_del_work(struct work_struct *work)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1002-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1004-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1005:\tmlx5_tc_ct_entry_del(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1006-}\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1008=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1009:__mlx5_tc_ct_entry_put(struct mlx5_ct_entry *entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1010-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1013-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1014:\tINIT_WORK(\u0026entry-\u003ework, mlx5_tc_ct_entry_del_work);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1015-\tqueue_work(entry-\u003ect_priv-\u003ewq, \u0026entry-\u003ework);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1018=static struct mlx5_ct_counter *\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1019:mlx5_tc_ct_counter_create(struct mlx5_tc_ct_priv *ct_priv)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1020-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1040=static struct mlx5_ct_counter *\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1041:mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1042-\t\t\t      struct mlx5_ct_entry *entry)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1066-\tspin_lock_bh(\u0026ct_priv-\u003eht_lock);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1067:\trev_entry = mlx5_tc_ct_entry_get(ct_priv, \u0026rev_tuple);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1068-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1078-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1079:\t\tmlx5_tc_ct_entry_put(rev_entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1080-\t\treturn shared_counter;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1085-\tif (rev_entry)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1086:\t\tmlx5_tc_ct_entry_put(rev_entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1087-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1089-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1090:\tshared_counter = mlx5_tc_ct_counter_create(ct_priv);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1091-\tif (IS_ERR(shared_counter))\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1099=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1100:mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1101-\t\t\t   struct flow_rule *flow_rule,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1107-\tif (nf_ct_acct_enabled(dev_net(ct_priv-\u003enetdev)))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1108:\t\tentry-\u003ecounter = mlx5_tc_ct_counter_create(ct_priv);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1109-\telse\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1110:\t\tentry-\u003ecounter = mlx5_tc_ct_shared_counter_get(ct_priv, entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1111-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1116-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1117:\tif (mlx5_tc_ct_entry_in_ct_table(entry)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1118:\t\terr = mlx5_tc_ct_entry_add_rule(ct_priv, flow_rule, entry, false,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1119-\t\t\t\t\t\tzone_restore_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1123-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1124:\tif (mlx5_tc_ct_entry_in_ct_nat_table(entry)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1125:\t\terr = mlx5_tc_ct_entry_add_rule(ct_priv, flow_rule, entry, true,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1126-\t\t\t\t\t\tzone_restore_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1134-err_nat:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1135:\tif (mlx5_tc_ct_entry_in_ct_table(entry))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1136:\t\tmlx5_tc_ct_entry_del_rule(ct_priv, entry, false);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1137-err_orig:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1138:\tmlx5_tc_ct_counter_put(ct_priv, entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1139-\treturn err;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1142=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1143:mlx5_tc_ct_entry_update_rules(struct mlx5_tc_ct_priv *ct_priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1144-\t\t\t      struct flow_rule *flow_rule,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1149-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1150:\tif (mlx5_tc_ct_entry_in_ct_table(entry)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1151:\t\terr = mlx5_tc_ct_entry_update_rule(ct_priv, flow_rule, entry, false,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1152-\t\t\t\t\t\t   zone_restore_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1156-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1157:\tif (mlx5_tc_ct_entry_in_ct_nat_table(entry)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1158:\t\terr = mlx5_tc_ct_entry_update_rule(ct_priv, flow_rule, entry, true,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1159-\t\t\t\t\t\t   zone_restore_id);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1160:\t\tif (err \u0026\u0026 mlx5_tc_ct_entry_in_ct_table(entry))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1161:\t\t\tmlx5_tc_ct_entry_del_rule(ct_priv, entry, false);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1162-\t}\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1166=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1167:mlx5_tc_ct_block_flow_offload_update(struct mlx5_ct_ft *ft, struct flow_rule *flow_rule,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1168-\t\t\t\t     struct mlx5_ct_entry *entry, unsigned long cookie)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1169-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1170:\tstruct mlx5_tc_ct_priv *ct_priv = ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1171-\tint err;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1172-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1173:\terr = mlx5_tc_ct_entry_update_rules(ct_priv, flow_rule, entry, ft-\u003ezone_restore_id);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1174-\tif (!err)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1184-\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1185:\t\tmlx5_tc_ct_entry_put(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1186-\t} else {\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1192=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1193:mlx5_tc_ct_block_flow_offload_add(struct mlx5_ct_ft *ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1194-\t\t\t\t  struct flow_cls_offload *flow)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1196-\tstruct flow_rule *flow_rule = flow_cls_offload_flow_rule(flow);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1197:\tstruct mlx5_tc_ct_priv *ct_priv = ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1198-\tstruct flow_action_entry *meta_action;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1203-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1204:\tmeta_action = mlx5_tc_ct_get_ct_metadata_action(flow_rule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1205-\tif (!meta_action)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1212-\t\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1213:\t\t\tmlx5_tc_ct_entry_put(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1214-\t\t\treturn -EEXIST;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1218-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1219:\t\terr = mlx5_tc_ct_block_flow_offload_update(ft, flow_rule, entry, cookie);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1220:\t\tmlx5_tc_ct_entry_put(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1221-\t\treturn err;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1234-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1235:\terr = mlx5_tc_ct_rule_to_tuple(\u0026entry-\u003etuple, flow_rule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1236-\tif (err)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1239-\tmemcpy(\u0026entry-\u003etuple_nat, \u0026entry-\u003etuple, sizeof(entry-\u003etuple));\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1240:\terr = mlx5_tc_ct_rule_to_tuple_nat(\u0026entry-\u003etuple_nat, flow_rule);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1241-\tif (err)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1262-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1263:\tif (!mlx5_tc_ct_entry_in_ct_nat_table(entry)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1264-\t\terr = rhashtable_lookup_insert_fast(\u0026ct_priv-\u003ect_tuples_ht,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1273-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1274:\terr = mlx5_tc_ct_entry_add_rules(ct_priv, flow_rule, entry,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1275-\t\t\t\t\t ft-\u003ezone_restore_id);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1279-\tset_bit(MLX5_CT_ENTRY_FLAG_VALID, \u0026entry-\u003eflags);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1280:\tmlx5_tc_ct_entry_put(entry); /* this function reference */\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1281-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1286-err_tuple:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1287:\tmlx5_tc_ct_entry_remove_from_tuples(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1288-err_tuple_nat:\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1299=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1300:mlx5_tc_ct_block_flow_offload_del(struct mlx5_ct_ft *ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1301-\t\t\t\t  struct flow_cls_offload *flow)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1302-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1303:\tstruct mlx5_tc_ct_priv *ct_priv = ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1304-\tunsigned long cookie = flow-\u003ecookie;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1313-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1314:\tif (!mlx5_tc_ct_entry_valid(entry)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1315-\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1321-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1322:\tmlx5_tc_ct_entry_put(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1323-\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1327=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1328:mlx5_tc_ct_block_flow_offload_stats(struct mlx5_ct_ft *ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1329-\t\t\t\t    struct flow_cls_offload *f)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1330-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1331:\tstruct mlx5_tc_ct_priv *ct_priv = ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1332-\tunsigned long cookie = f-\u003ecookie;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1342-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1343:\tif (!mlx5_tc_ct_entry_valid(entry) || !refcount_inc_not_zero(\u0026entry-\u003erefcnt)) {\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1344-\t\tspin_unlock_bh(\u0026ct_priv-\u003eht_lock);\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1353-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1354:\tmlx5_tc_ct_entry_put(entry);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1355-\treturn 0;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1358=static bool\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1359:mlx5_tc_ct_filter_legacy_non_nic_flows(struct mlx5_ct_ft *ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1360-\t\t\t\t       struct flow_cls_offload *flow)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1362-\tstruct flow_rule *rule = flow_cls_offload_flow_rule(flow);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1363:\tstruct mlx5_tc_ct_priv *ct_priv = ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1364-\tstruct flow_match_meta match;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1384=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1385:mlx5_tc_ct_block_flow_offload(enum tc_setup_type type, void *type_data,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1386-\t\t\t      void *cb_priv)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1395-\tcase FLOW_CLS_REPLACE:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1396:\t\tif (!mlx5_tc_ct_filter_legacy_non_nic_flows(ft, f))\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1397-\t\t\treturn -EOPNOTSUPP;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1398-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1399:\t\treturn mlx5_tc_ct_block_flow_offload_add(ft, f);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1400-\tcase FLOW_CLS_DESTROY:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1401:\t\treturn mlx5_tc_ct_block_flow_offload_del(ft, f);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1402-\tcase FLOW_CLS_STATS:\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1403:\t\treturn mlx5_tc_ct_block_flow_offload_stats(ft, f);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1404-\tdefault:\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1411=static bool\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1412:mlx5_tc_ct_skb_to_tuple(struct sk_buff *skb, struct mlx5_ct_tuple *tuple,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1413-\t\t\tu16 zone)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1456-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1457:int mlx5_tc_ct_add_no_trk_match(struct mlx5_flow_spec *spec)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1458-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1473-\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1474:void mlx5_tc_ct_match_del(struct mlx5_tc_ct_priv *priv, struct mlx5_ct_attr *ct_attr)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1475-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1482=int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1483:mlx5_tc_ct_match_add(struct mlx5_tc_ct_priv *priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1484-\t\t     struct mlx5_flow_spec *spec,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1588=int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1589:mlx5_tc_ct_parse_action(struct mlx5_tc_ct_priv *priv,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1590-\t\t\tstruct mlx5_flow_attr *attr,\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1609=static int tc_ct_pre_ct_add_rules(struct mlx5_ct_ft *ct_ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1610:\t\t\t\t  struct mlx5_tc_ct_pre *pre_ct,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1611-\t\t\t\t  bool nat)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1612-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1613:\tstruct mlx5_tc_ct_priv *ct_priv = ct_ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1614-\tstruct mlx5e_tc_mod_hdr_acts pre_mod_acts = {};\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1697=tc_ct_pre_ct_del_rules(struct mlx5_ct_ft *ct_ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1698:\t\t       struct mlx5_tc_ct_pre *pre_ct)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1699-{\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1700:\tstruct mlx5_tc_ct_priv *ct_priv = ct_ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1701-\tstruct mlx5_core_dev *dev = ct_priv-\u003edev;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1708=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1709:mlx5_tc_ct_alloc_pre_ct(struct mlx5_ct_ft *ct_ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1710:\t\t\tstruct mlx5_tc_ct_pre *pre_ct,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1711-\t\t\tbool nat)\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1713-\tint inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1714:\tstruct mlx5_tc_ct_priv *ct_priv = ct_ft-\u003ect_priv;\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1715-\tstruct mlx5_core_dev *dev = ct_priv-\u003edev;\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1804=static void\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1805:mlx5_tc_ct_free_pre_ct(struct mlx5_ct_ft *ct_ft,\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1806:\t\t       struct mlx5_tc_ct_pre *pre_ct)\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c-1807-{\n--\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c=1814=static int\ndrivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:1815:mlx5_tc_ct_alloc_pre_ct_tables(struct mlx5_ct_ft *ft)\n\n"
}

gemini-3.8-flash

null

null

							input: 43380
							output: 143
							thoughts: 399
						

**My Assessment of the Fuzzing Applicability**

Okay, so the `mlx5` driver... right, it's Mellanox-specific, dealing with their ConnectX and BlueField NICs. It lives entirely within the `mlx5e` and `mlx5_tc_ct_*` parts of the kernel, so I need to keep that in mind. And just to confirm, section 2 of the documentation clearly states that vendor-specific PCIe hardware like this, which includes drivers like `mlxsw`, `pds_core`, `qed`, `ionic`, and, crucially, `mlx5`, is structurally unreachable in standard QEMU. That list explicitly calls out `mlx5` as the key NIC driver here. No software simulation, no standard QEMU device, nothing. This is all physical ASIC and PCIe cards, period.

Therefore, this patch that's touching `mlx5_tc_ct_shared_counter_get()` in `drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c`—which, by the way, appears to be a reference leak fix—is fundamentally inaccessible for fuzzing. I can't even get to it. It's a structural impossibility without the actual Mellanox hardware.

So, here are my final values for this patch:

*   `WorthFuzzing`: `false` (no, not at all)
*   `EnableConfigs`: `[]` (nothing to enable)
*   `FocusSymbols`: `[]` (nothing to focus on)
*   `Reasoning`: Concise explanation: The patch modifies `mlx5_tc_ct_shared_counter_get()` in `drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c` to fix a reference leak. The mlx5 driver supports Mellanox ConnectX/BlueField PCIe devices, which require physical vendor-specific ASIC/PCIe hardware not emulated in standard QEMU/GCE environments. As such, the modified code is structurally unreachable for fuzzing.

Alright, that covers everything. Looks consistent, all the instructions are followed, no issues. I'll go ahead and call `set-results`.

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch modifies mlx5_tc_ct_shared_counter_get() in drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c to fix a reference count leak. The mlx5 driver is a vendor-specific network driver for Mellanox ConnectX/BlueField NICs and SmartNICs, which requires physical hardware that is not emulated in standard QEMU/GCE virtualized environments. Consequently, the modified code is structurally unreachable for syzkaller fuzzing.",
  "WorthFuzzing": false
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch modifies mlx5_tc_ct_shared_counter_get() in drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c to fix a reference count leak. The mlx5 driver is a vendor-specific network driver for Mellanox ConnectX/BlueField NICs and SmartNICs, which requires physical hardware that is not emulated in standard QEMU/GCE virtualized environments. Consequently, the modified code is structurally unreachable for syzkaller fuzzing.",
  "WorthFuzzing": false
}

{
  "WorthFuzzing": false
}

null