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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /lib/test_parman.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to '')
-rw-r--r--lib/test_parman.c395
1 files changed, 395 insertions, 0 deletions
diff --git a/lib/test_parman.c b/lib/test_parman.c
new file mode 100644
index 000000000..35e322436
--- /dev/null
+++ b/lib/test_parman.c
@@ -0,0 +1,395 @@
+/*
+ * lib/test_parman.c - Test module for parman
+ * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2017 Jiri Pirko <jiri@mellanox.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/random.h>
+#include <linux/parman.h>
+
+#define TEST_PARMAN_PRIO_SHIFT 7 /* defines number of prios for testing */
+#define TEST_PARMAN_PRIO_COUNT BIT(TEST_PARMAN_PRIO_SHIFT)
+#define TEST_PARMAN_PRIO_MASK (TEST_PARMAN_PRIO_COUNT - 1)
+
+#define TEST_PARMAN_ITEM_SHIFT 13 /* defines a total number
+ * of items for testing
+ */
+#define TEST_PARMAN_ITEM_COUNT BIT(TEST_PARMAN_ITEM_SHIFT)
+#define TEST_PARMAN_ITEM_MASK (TEST_PARMAN_ITEM_COUNT - 1)
+
+#define TEST_PARMAN_BASE_SHIFT 8
+#define TEST_PARMAN_BASE_COUNT BIT(TEST_PARMAN_BASE_SHIFT)
+#define TEST_PARMAN_RESIZE_STEP_SHIFT 7
+#define TEST_PARMAN_RESIZE_STEP_COUNT BIT(TEST_PARMAN_RESIZE_STEP_SHIFT)
+
+#define TEST_PARMAN_BULK_MAX_SHIFT (2 + TEST_PARMAN_RESIZE_STEP_SHIFT)
+#define TEST_PARMAN_BULK_MAX_COUNT BIT(TEST_PARMAN_BULK_MAX_SHIFT)
+#define TEST_PARMAN_BULK_MAX_MASK (TEST_PARMAN_BULK_MAX_COUNT - 1)
+
+#define TEST_PARMAN_RUN_BUDGET (TEST_PARMAN_ITEM_COUNT * 256)
+
+struct test_parman_prio {
+ struct parman_prio parman_prio;
+ unsigned long priority;
+};
+
+struct test_parman_item {
+ struct parman_item parman_item;
+ struct test_parman_prio *prio;
+ bool used;
+};
+
+struct test_parman {
+ struct parman *parman;
+ struct test_parman_item **prio_array;
+ unsigned long prio_array_limit;
+ struct test_parman_prio prios[TEST_PARMAN_PRIO_COUNT];
+ struct test_parman_item items[TEST_PARMAN_ITEM_COUNT];
+ struct rnd_state rnd;
+ unsigned long run_budget;
+ unsigned long bulk_budget;
+ bool bulk_noop;
+ unsigned int used_items;
+};
+
+#define ITEM_PTRS_SIZE(count) (sizeof(struct test_parman_item *) * (count))
+
+static int test_parman_resize(void *priv, unsigned long new_count)
+{
+ struct test_parman *test_parman = priv;
+ struct test_parman_item **prio_array;
+ unsigned long old_count;
+
+ prio_array = krealloc(test_parman->prio_array,
+ ITEM_PTRS_SIZE(new_count), GFP_KERNEL);
+ if (new_count == 0)
+ return 0;
+ if (!prio_array)
+ return -ENOMEM;
+ old_count = test_parman->prio_array_limit;
+ if (new_count > old_count)
+ memset(&prio_array[old_count], 0,
+ ITEM_PTRS_SIZE(new_count - old_count));
+ test_parman->prio_array = prio_array;
+ test_parman->prio_array_limit = new_count;
+ return 0;
+}
+
+static void test_parman_move(void *priv, unsigned long from_index,
+ unsigned long to_index, unsigned long count)
+{
+ struct test_parman *test_parman = priv;
+ struct test_parman_item **prio_array = test_parman->prio_array;
+
+ memmove(&prio_array[to_index], &prio_array[from_index],
+ ITEM_PTRS_SIZE(count));
+ memset(&prio_array[from_index], 0, ITEM_PTRS_SIZE(count));
+}
+
+static const struct parman_ops test_parman_lsort_ops = {
+ .base_count = TEST_PARMAN_BASE_COUNT,
+ .resize_step = TEST_PARMAN_RESIZE_STEP_COUNT,
+ .resize = test_parman_resize,
+ .move = test_parman_move,
+ .algo = PARMAN_ALGO_TYPE_LSORT,
+};
+
+static void test_parman_rnd_init(struct test_parman *test_parman)
+{
+ prandom_seed_state(&test_parman->rnd, 3141592653589793238ULL);
+}
+
+static u32 test_parman_rnd_get(struct test_parman *test_parman)
+{
+ return prandom_u32_state(&test_parman->rnd);
+}
+
+static unsigned long test_parman_priority_gen(struct test_parman *test_parman)
+{
+ unsigned long priority;
+ int i;
+
+again:
+ priority = test_parman_rnd_get(test_parman);
+ if (priority == 0)
+ goto again;
+
+ for (i = 0; i < TEST_PARMAN_PRIO_COUNT; i++) {
+ struct test_parman_prio *prio = &test_parman->prios[i];
+
+ if (prio->priority == 0)
+ break;
+ if (prio->priority == priority)
+ goto again;
+ }
+ return priority;
+}
+
+static void test_parman_prios_init(struct test_parman *test_parman)
+{
+ int i;
+
+ for (i = 0; i < TEST_PARMAN_PRIO_COUNT; i++) {
+ struct test_parman_prio *prio = &test_parman->prios[i];
+
+ /* Assign random uniqueue priority to each prio structure */
+ prio->priority = test_parman_priority_gen(test_parman);
+ parman_prio_init(test_parman->parman, &prio->parman_prio,
+ prio->priority);
+ }
+}
+
+static void test_parman_prios_fini(struct test_parman *test_parman)
+{
+ int i;
+
+ for (i = 0; i < TEST_PARMAN_PRIO_COUNT; i++) {
+ struct test_parman_prio *prio = &test_parman->prios[i];
+
+ parman_prio_fini(&prio->parman_prio);
+ }
+}
+
+static void test_parman_items_init(struct test_parman *test_parman)
+{
+ int i;
+
+ for (i = 0; i < TEST_PARMAN_ITEM_COUNT; i++) {
+ struct test_parman_item *item = &test_parman->items[i];
+ unsigned int prio_index = test_parman_rnd_get(test_parman) &
+ TEST_PARMAN_PRIO_MASK;
+
+ /* Assign random prio to each item structure */
+ item->prio = &test_parman->prios[prio_index];
+ }
+}
+
+static void test_parman_items_fini(struct test_parman *test_parman)
+{
+ int i;
+
+ for (i = 0; i < TEST_PARMAN_ITEM_COUNT; i++) {
+ struct test_parman_item *item = &test_parman->items[i];
+
+ if (!item->used)
+ continue;
+ parman_item_remove(test_parman->parman,
+ &item->prio->parman_prio,
+ &item->parman_item);
+ }
+}
+
+static struct test_parman *test_parman_create(const struct parman_ops *ops)
+{
+ struct test_parman *test_parman;
+ int err;
+
+ test_parman = kzalloc(sizeof(*test_parman), GFP_KERNEL);
+ if (!test_parman)
+ return ERR_PTR(-ENOMEM);
+ err = test_parman_resize(test_parman, TEST_PARMAN_BASE_COUNT);
+ if (err)
+ goto err_resize;
+ test_parman->parman = parman_create(ops, test_parman);
+ if (!test_parman->parman) {
+ err = -ENOMEM;
+ goto err_parman_create;
+ }
+ test_parman_rnd_init(test_parman);
+ test_parman_prios_init(test_parman);
+ test_parman_items_init(test_parman);
+ test_parman->run_budget = TEST_PARMAN_RUN_BUDGET;
+ return test_parman;
+
+err_parman_create:
+ test_parman_resize(test_parman, 0);
+err_resize:
+ kfree(test_parman);
+ return ERR_PTR(err);
+}
+
+static void test_parman_destroy(struct test_parman *test_parman)
+{
+ test_parman_items_fini(test_parman);
+ test_parman_prios_fini(test_parman);
+ parman_destroy(test_parman->parman);
+ test_parman_resize(test_parman, 0);
+ kfree(test_parman);
+}
+
+static bool test_parman_run_check_budgets(struct test_parman *test_parman)
+{
+ if (test_parman->run_budget-- == 0)
+ return false;
+ if (test_parman->bulk_budget-- != 0)
+ return true;
+
+ test_parman->bulk_budget = test_parman_rnd_get(test_parman) &
+ TEST_PARMAN_BULK_MAX_MASK;
+ test_parman->bulk_noop = test_parman_rnd_get(test_parman) & 1;
+ return true;
+}
+
+static int test_parman_run(struct test_parman *test_parman)
+{
+ unsigned int i = test_parman_rnd_get(test_parman);
+ int err;
+
+ while (test_parman_run_check_budgets(test_parman)) {
+ unsigned int item_index = i++ & TEST_PARMAN_ITEM_MASK;
+ struct test_parman_item *item = &test_parman->items[item_index];
+
+ if (test_parman->bulk_noop)
+ continue;
+
+ if (!item->used) {
+ err = parman_item_add(test_parman->parman,
+ &item->prio->parman_prio,
+ &item->parman_item);
+ if (err)
+ return err;
+ test_parman->prio_array[item->parman_item.index] = item;
+ test_parman->used_items++;
+ } else {
+ test_parman->prio_array[item->parman_item.index] = NULL;
+ parman_item_remove(test_parman->parman,
+ &item->prio->parman_prio,
+ &item->parman_item);
+ test_parman->used_items--;
+ }
+ item->used = !item->used;
+ }
+ return 0;
+}
+
+static int test_parman_check_array(struct test_parman *test_parman,
+ bool gaps_allowed)
+{
+ unsigned int last_unused_items = 0;
+ unsigned long last_priority = 0;
+ unsigned int used_items = 0;
+ int i;
+
+ if (test_parman->prio_array_limit < TEST_PARMAN_BASE_COUNT) {
+ pr_err("Array limit is lower than the base count (%lu < %lu)\n",
+ test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < test_parman->prio_array_limit; i++) {
+ struct test_parman_item *item = test_parman->prio_array[i];
+
+ if (!item) {
+ last_unused_items++;
+ continue;
+ }
+ if (last_unused_items && !gaps_allowed) {
+ pr_err("Gap found in array even though they are forbidden\n");
+ return -EINVAL;
+ }
+
+ last_unused_items = 0;
+ used_items++;
+
+ if (item->prio->priority < last_priority) {
+ pr_err("Item belongs under higher priority then the last one (current: %lu, previous: %lu)\n",
+ item->prio->priority, last_priority);
+ return -EINVAL;
+ }
+ last_priority = item->prio->priority;
+
+ if (item->parman_item.index != i) {
+ pr_err("Item has different index in compare to where it actually is (%lu != %d)\n",
+ item->parman_item.index, i);
+ return -EINVAL;
+ }
+ }
+
+ if (used_items != test_parman->used_items) {
+ pr_err("Number of used items in array does not match (%u != %u)\n",
+ used_items, test_parman->used_items);
+ return -EINVAL;
+ }
+
+ if (last_unused_items >= TEST_PARMAN_RESIZE_STEP_COUNT) {
+ pr_err("Number of unused item at the end of array is bigger than resize step (%u >= %lu)\n",
+ last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT);
+ return -EINVAL;
+ }
+
+ pr_info("Priority array check successful\n");
+
+ return 0;
+}
+
+static int test_parman_lsort(void)
+{
+ struct test_parman *test_parman;
+ int err;
+
+ test_parman = test_parman_create(&test_parman_lsort_ops);
+ if (IS_ERR(test_parman))
+ return PTR_ERR(test_parman);
+
+ err = test_parman_run(test_parman);
+ if (err)
+ goto out;
+
+ err = test_parman_check_array(test_parman, false);
+ if (err)
+ goto out;
+out:
+ test_parman_destroy(test_parman);
+ return err;
+}
+
+static int __init test_parman_init(void)
+{
+ return test_parman_lsort();
+}
+
+static void __exit test_parman_exit(void)
+{
+}
+
+module_init(test_parman_init);
+module_exit(test_parman_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
+MODULE_DESCRIPTION("Test module for parman");