From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0BEA2A04E6; Fri, 30 Oct 2020 19:37:49 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 4FF4AC80C; Fri, 30 Oct 2020 19:28:01 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 8D4BEC814 for ; Fri, 30 Oct 2020 19:27:29 +0100 (CET) IronPort-SDR: LTxb7JN/bIpIqcWHlMvSdx2coJ07eh4nHZzMgyQsIHt5UxGb+wNZAWSptUVpbe2vwVEtJ9bh3S J2nAgJNh5nzg== X-IronPort-AV: E=McAfee;i="6000,8403,9790"; a="148504466" X-IronPort-AV: E=Sophos;i="5.77,434,1596524400"; d="scan'208";a="148504466" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Oct 2020 11:27:29 -0700 IronPort-SDR: m6W9M/50RaOtbsWy2OzVBzNT5g617rTo541KXLs5u/DakAf8hJB8iPQo/UDZYpdmgI5xcFb1kA j+qj+qGpg2og== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,434,1596524400"; d="scan'208";a="305012581" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga007.fm.intel.com with ESMTP; 30 Oct 2020 11:27:28 -0700 From: Timothy McDaniel To: Cc: dev@dpdk.org, erik.g.carrillo@intel.com, gage.eads@intel.com, harry.van.haaren@intel.com, jerinj@marvell.com, thomas@monjalon.net Date: Fri, 30 Oct 2020 13:28:53 -0500 Message-Id: <1604082547-16710-10-git-send-email-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1604082547-16710-1-git-send-email-timothy.mcdaniel@intel.com> References: <1602958879-8558-2-git-send-email-timothy.mcdaniel@intel.com> <1604082547-16710-1-git-send-email-timothy.mcdaniel@intel.com> Subject: [dpdk-dev] [PATCH v6 09/23] event/dlb2: add xstats X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add support for DLB2 xstats. Perform initialization and add standard xstats entry points. Signed-off-by: Timothy McDaniel Reviewed-by: Gage Eads Reviewed-by: Chen, Mike Ximing --- drivers/event/dlb2/dlb2.c | 35 +- drivers/event/dlb2/dlb2_xstats.c | 1240 ++++++++++++++++++++++++++++++++++++++ drivers/event/dlb2/meson.build | 1 + 3 files changed, 1273 insertions(+), 3 deletions(-) create mode 100644 drivers/event/dlb2/dlb2_xstats.c diff --git a/drivers/event/dlb2/dlb2.c b/drivers/event/dlb2/dlb2.c index 16653db..925824e 100644 --- a/drivers/event/dlb2/dlb2.c +++ b/drivers/event/dlb2/dlb2.c @@ -70,6 +70,21 @@ static struct rte_event_dev_info evdev_dlb2_default_info = { struct process_local_port_data dlb2_port[DLB2_MAX_NUM_PORTS][DLB2_NUM_PORT_TYPES]; +/* + * DUMMY - added so that xstats path will compile/link. + * Will be replaced by real version in a subsequent + * patch. + */ +uint32_t +dlb2_get_queue_depth(struct dlb2_eventdev *dlb2, + struct dlb2_eventdev_queue *queue) +{ + RTE_SET_USED(dlb2); + RTE_SET_USED(queue); + + return 0; +} + /* override defaults with value(s) provided on command line */ static void dlb2_init_queue_depth_thresholds(struct dlb2_eventdev *dlb2, @@ -337,9 +352,16 @@ set_qid_depth_thresh(const char *key __rte_unused, static void dlb2_entry_points_init(struct rte_eventdev *dev) { - RTE_SET_USED(dev); - - /* Eventdev PMD entry points */ + /* Expose PMD's eventdev interface */ + static struct rte_eventdev_ops dlb2_eventdev_entry_ops = { + .dump = dlb2_eventdev_dump, + .xstats_get = dlb2_eventdev_xstats_get, + .xstats_get_names = dlb2_eventdev_xstats_get_names, + .xstats_get_by_name = dlb2_eventdev_xstats_get_by_name, + .xstats_reset = dlb2_eventdev_xstats_reset, + }; + + dev->dev_ops = &dlb2_eventdev_entry_ops; } int @@ -391,6 +413,13 @@ dlb2_primary_eventdev_probe(struct rte_eventdev *dev, return err; } + /* Complete xtstats runtime initialization */ + err = dlb2_xstats_init(dlb2); + if (err) { + DLB2_LOG_ERR("dlb2: failed to init xstats, err=%d\n", err); + return err; + } + rte_spinlock_init(&dlb2->qm_instance.resource_lock); dlb2_iface_low_level_io_init(); diff --git a/drivers/event/dlb2/dlb2_xstats.c b/drivers/event/dlb2/dlb2_xstats.c new file mode 100644 index 0000000..21391f7 --- /dev/null +++ b/drivers/event/dlb2/dlb2_xstats.c @@ -0,0 +1,1240 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#include + +#include +#include + +#include "dlb2_priv.h" +#include "dlb2_inline_fns.h" + +enum dlb2_xstats_type { + /* common to device and port */ + rx_ok, /**< Receive an event */ + rx_drop, /**< Error bit set in received QE */ + rx_interrupt_wait, /**< Wait on an interrupt */ + rx_umonitor_umwait, /**< Block using umwait */ + tx_ok, /**< Transmit an event */ + total_polls, /**< Call dequeue_burst */ + zero_polls, /**< Call dequeue burst and return 0 */ + tx_nospc_ldb_hw_credits, /**< Insufficient LDB h/w credits */ + tx_nospc_dir_hw_credits, /**< Insufficient DIR h/w credits */ + tx_nospc_inflight_max, /**< Reach the new_event_threshold */ + tx_nospc_new_event_limit, /**< Insufficient s/w credits */ + tx_nospc_inflight_credits, /**< Port has too few s/w credits */ + /* device specific */ + nb_events_limit, + inflight_events, + ldb_pool_size, + dir_pool_size, + /* port specific */ + tx_new, /**< Send an OP_NEW event */ + tx_fwd, /**< Send an OP_FORWARD event */ + tx_rel, /**< Send an OP_RELEASE event */ + tx_implicit_rel, /**< Issue an implicit event release */ + tx_sched_ordered, /**< Send a SCHED_TYPE_ORDERED event */ + tx_sched_unordered, /**< Send a SCHED_TYPE_PARALLEL event */ + tx_sched_atomic, /**< Send a SCHED_TYPE_ATOMIC event */ + tx_sched_directed, /**< Send a directed event */ + tx_invalid, /**< Send an event with an invalid op */ + outstanding_releases, /**< # of releases a port owes */ + max_outstanding_releases, /**< max # of releases a port can owe */ + rx_sched_ordered, /**< Dequeue an ordered event */ + rx_sched_unordered, /**< Dequeue an unordered event */ + rx_sched_atomic, /**< Dequeue an atomic event */ + rx_sched_directed, /**< Dequeue an directed event */ + rx_sched_invalid, /**< Dequeue event sched type invalid */ + /* common to port and queue */ + is_configured, /**< Port is configured */ + is_load_balanced, /**< Port is LDB */ + hw_id, /**< Hardware ID */ + /* queue specific */ + num_links, /**< Number of ports linked */ + sched_type, /**< Queue sched type */ + enq_ok, /**< # events enqueued to the queue */ + current_depth, /**< Current queue depth */ + depth_threshold, /**< Programmed depth threshold */ + depth_le50_threshold, + /**< Depth LE to 50% of the configured hardware threshold */ + depth_gt50_le75_threshold, + /**< Depth GT 50%, but LE to 75% of the configured hardware threshold */ + depth_gt75_le100_threshold, + /**< Depth GT 75%. but LE to the configured hardware threshold */ + depth_gt100_threshold + /**< Depth GT 100% of the configured hw threshold */ +}; + +typedef uint64_t (*dlb2_xstats_fn)(struct dlb2_eventdev *dlb2, + uint16_t obj_idx, /* port or queue id */ + enum dlb2_xstats_type stat, int extra_arg); + +enum dlb2_xstats_fn_type { + DLB2_XSTATS_FN_DEV, + DLB2_XSTATS_FN_PORT, + DLB2_XSTATS_FN_QUEUE +}; + +struct dlb2_xstats_entry { + struct rte_event_dev_xstats_name name; + uint64_t reset_value; /* an offset to be taken away to emulate resets */ + enum dlb2_xstats_fn_type fn_id; + enum dlb2_xstats_type stat; + enum rte_event_dev_xstats_mode mode; + int extra_arg; + uint16_t obj_idx; + uint8_t reset_allowed; /* when set, this value can be reset */ +}; + +/* Some device stats are simply a summation of the corresponding port values */ +static uint64_t +dlb2_device_traffic_stat_get(struct dlb2_eventdev *dlb2, + int which_stat) +{ + int i; + uint64_t val = 0; + + for (i = 0; i < DLB2_MAX_NUM_PORTS; i++) { + struct dlb2_eventdev_port *port = &dlb2->ev_ports[i]; + + if (!port->setup_done) + continue; + + switch (which_stat) { + case rx_ok: + val += port->stats.traffic.rx_ok; + break; + case rx_drop: + val += port->stats.traffic.rx_drop; + break; + case rx_interrupt_wait: + val += port->stats.traffic.rx_interrupt_wait; + break; + case rx_umonitor_umwait: + val += port->stats.traffic.rx_umonitor_umwait; + break; + case tx_ok: + val += port->stats.traffic.tx_ok; + break; + case total_polls: + val += port->stats.traffic.total_polls; + break; + case zero_polls: + val += port->stats.traffic.zero_polls; + break; + case tx_nospc_ldb_hw_credits: + val += port->stats.traffic.tx_nospc_ldb_hw_credits; + break; + case tx_nospc_dir_hw_credits: + val += port->stats.traffic.tx_nospc_dir_hw_credits; + break; + case tx_nospc_inflight_max: + val += port->stats.traffic.tx_nospc_inflight_max; + break; + case tx_nospc_new_event_limit: + val += port->stats.traffic.tx_nospc_new_event_limit; + break; + case tx_nospc_inflight_credits: + val += port->stats.traffic.tx_nospc_inflight_credits; + break; + default: + return -1; + } + } + return val; +} + +static uint64_t +get_dev_stat(struct dlb2_eventdev *dlb2, uint16_t obj_idx __rte_unused, + enum dlb2_xstats_type type, int extra_arg __rte_unused) +{ + switch (type) { + case rx_ok: + case rx_drop: + case rx_interrupt_wait: + case rx_umonitor_umwait: + case tx_ok: + case total_polls: + case zero_polls: + case tx_nospc_ldb_hw_credits: + case tx_nospc_dir_hw_credits: + case tx_nospc_inflight_max: + case tx_nospc_new_event_limit: + case tx_nospc_inflight_credits: + return dlb2_device_traffic_stat_get(dlb2, type); + case nb_events_limit: + return dlb2->new_event_limit; + case inflight_events: + return __atomic_load_n(&dlb2->inflights, __ATOMIC_SEQ_CST); + case ldb_pool_size: + return dlb2->num_ldb_credits; + case dir_pool_size: + return dlb2->num_dir_credits; + default: return -1; + } +} + +static uint64_t +get_port_stat(struct dlb2_eventdev *dlb2, uint16_t obj_idx, + enum dlb2_xstats_type type, int extra_arg __rte_unused) +{ + struct dlb2_eventdev_port *ev_port = &dlb2->ev_ports[obj_idx]; + + switch (type) { + case rx_ok: return ev_port->stats.traffic.rx_ok; + + case rx_drop: return ev_port->stats.traffic.rx_drop; + + case rx_interrupt_wait: return ev_port->stats.traffic.rx_interrupt_wait; + + case rx_umonitor_umwait: + return ev_port->stats.traffic.rx_umonitor_umwait; + + case tx_ok: return ev_port->stats.traffic.tx_ok; + + case total_polls: return ev_port->stats.traffic.total_polls; + + case zero_polls: return ev_port->stats.traffic.zero_polls; + + case tx_nospc_ldb_hw_credits: + return ev_port->stats.traffic.tx_nospc_ldb_hw_credits; + + case tx_nospc_dir_hw_credits: + return ev_port->stats.traffic.tx_nospc_dir_hw_credits; + + case tx_nospc_inflight_max: + return ev_port->stats.traffic.tx_nospc_inflight_max; + + case tx_nospc_new_event_limit: + return ev_port->stats.traffic.tx_nospc_new_event_limit; + + case tx_nospc_inflight_credits: + return ev_port->stats.traffic.tx_nospc_inflight_credits; + + case is_configured: return ev_port->setup_done; + + case is_load_balanced: return !ev_port->qm_port.is_directed; + + case hw_id: return ev_port->qm_port.id; + + case tx_new: return ev_port->stats.tx_op_cnt[RTE_EVENT_OP_NEW]; + + case tx_fwd: return ev_port->stats.tx_op_cnt[RTE_EVENT_OP_FORWARD]; + + case tx_rel: return ev_port->stats.tx_op_cnt[RTE_EVENT_OP_RELEASE]; + + case tx_implicit_rel: return ev_port->stats.tx_implicit_rel; + + case tx_sched_ordered: + return ev_port->stats.tx_sched_cnt[DLB2_SCHED_ORDERED]; + + case tx_sched_unordered: + return ev_port->stats.tx_sched_cnt[DLB2_SCHED_UNORDERED]; + + case tx_sched_atomic: + return ev_port->stats.tx_sched_cnt[DLB2_SCHED_ATOMIC]; + + case tx_sched_directed: + return ev_port->stats.tx_sched_cnt[DLB2_SCHED_DIRECTED]; + + case tx_invalid: return ev_port->stats.tx_invalid; + + case outstanding_releases: return ev_port->outstanding_releases; + + case max_outstanding_releases: + return DLB2_NUM_HIST_LIST_ENTRIES_PER_LDB_PORT; + + case rx_sched_ordered: + return ev_port->stats.rx_sched_cnt[DLB2_SCHED_ORDERED]; + + case rx_sched_unordered: + return ev_port->stats.rx_sched_cnt[DLB2_SCHED_UNORDERED]; + + case rx_sched_atomic: + return ev_port->stats.rx_sched_cnt[DLB2_SCHED_ATOMIC]; + + case rx_sched_directed: + return ev_port->stats.rx_sched_cnt[DLB2_SCHED_DIRECTED]; + + case rx_sched_invalid: return ev_port->stats.rx_sched_invalid; + + default: return -1; + } +} + +static uint64_t +dlb2_get_threshold_stat(struct dlb2_eventdev *dlb2, int qid, int stat) +{ + int port = 0; + uint64_t tally = 0; + + for (port = 0; port < DLB2_MAX_NUM_PORTS; port++) + tally += dlb2->ev_ports[port].stats.queue[qid].qid_depth[stat]; + + return tally; +} + +static uint64_t +dlb2_get_enq_ok_stat(struct dlb2_eventdev *dlb2, int qid) +{ + int port = 0; + uint64_t enq_ok_tally = 0; + + for (port = 0; port < DLB2_MAX_NUM_PORTS; port++) + enq_ok_tally += dlb2->ev_ports[port].stats.queue[qid].enq_ok; + + return enq_ok_tally; +} + +static uint64_t +get_queue_stat(struct dlb2_eventdev *dlb2, uint16_t obj_idx, + enum dlb2_xstats_type type, int extra_arg __rte_unused) +{ + struct dlb2_eventdev_queue *ev_queue = + &dlb2->ev_queues[obj_idx]; + + switch (type) { + case is_configured: return ev_queue->setup_done; + + case is_load_balanced: return !ev_queue->qm_queue.is_directed; + + case hw_id: return ev_queue->qm_queue.id; + + case num_links: return ev_queue->num_links; + + case sched_type: return ev_queue->qm_queue.sched_type; + + case enq_ok: return dlb2_get_enq_ok_stat(dlb2, obj_idx); + + case current_depth: return dlb2_get_queue_depth(dlb2, ev_queue); + + case depth_threshold: return ev_queue->depth_threshold; + + case depth_le50_threshold: + return dlb2_get_threshold_stat(dlb2, ev_queue->id, + DLB2_QID_DEPTH_LE50); + + case depth_gt50_le75_threshold: + return dlb2_get_threshold_stat(dlb2, ev_queue->id, + DLB2_QID_DEPTH_GT50_LE75); + + case depth_gt75_le100_threshold: + return dlb2_get_threshold_stat(dlb2, ev_queue->id, + DLB2_QID_DEPTH_GT75_LE100); + + case depth_gt100_threshold: + return dlb2_get_threshold_stat(dlb2, ev_queue->id, + DLB2_QID_DEPTH_GT100); + + default: return -1; + } +} + +int +dlb2_xstats_init(struct dlb2_eventdev *dlb2) +{ + /* + * define the stats names and types. Used to build up the device + * xstats array + * There are multiple set of stats: + * - device-level, + * - per-port, + * - per-qid, + * + * For each of these sets, we have three parallel arrays, one for the + * names, the other for the stat type parameter to be passed in the fn + * call to get that stat. The third array allows resetting or not. + * All these arrays must be kept in sync + */ + static const char * const dev_stats[] = { + "rx_ok", + "rx_drop", + "rx_interrupt_wait", + "rx_umonitor_umwait", + "tx_ok", + "total_polls", + "zero_polls", + "tx_nospc_ldb_hw_credits", + "tx_nospc_dir_hw_credits", + "tx_nospc_inflight_max", + "tx_nospc_new_event_limit", + "tx_nospc_inflight_credits", + "nb_events_limit", + "inflight_events", + "ldb_pool_size", + "dir_pool_size", + }; + static const enum dlb2_xstats_type dev_types[] = { + rx_ok, + rx_drop, + rx_interrupt_wait, + rx_umonitor_umwait, + tx_ok, + total_polls, + zero_polls, + tx_nospc_ldb_hw_credits, + tx_nospc_dir_hw_credits, + tx_nospc_inflight_max, + tx_nospc_new_event_limit, + tx_nospc_inflight_credits, + nb_events_limit, + inflight_events, + ldb_pool_size, + dir_pool_size, + }; + /* Note: generated device stats are not allowed to be reset. */ + static const uint8_t dev_reset_allowed[] = { + 0, /* rx_ok */ + 0, /* rx_drop */ + 0, /* rx_interrupt_wait */ + 0, /* rx_umonitor_umwait */ + 0, /* tx_ok */ + 0, /* total_polls */ + 0, /* zero_polls */ + 0, /* tx_nospc_ldb_hw_credits */ + 0, /* tx_nospc_dir_hw_credits */ + 0, /* tx_nospc_inflight_max */ + 0, /* tx_nospc_new_event_limit */ + 0, /* tx_nospc_inflight_credits */ + 0, /* nb_events_limit */ + 0, /* inflight_events */ + 0, /* ldb_pool_size */ + 0, /* dir_pool_size */ + }; + static const char * const port_stats[] = { + "is_configured", + "is_load_balanced", + "hw_id", + "rx_ok", + "rx_drop", + "rx_interrupt_wait", + "rx_umonitor_umwait", + "tx_ok", + "total_polls", + "zero_polls", + "tx_nospc_ldb_hw_credits", + "tx_nospc_dir_hw_credits", + "tx_nospc_inflight_max", + "tx_nospc_new_event_limit", + "tx_nospc_inflight_credits", + "tx_new", + "tx_fwd", + "tx_rel", + "tx_implicit_rel", + "tx_sched_ordered", + "tx_sched_unordered", + "tx_sched_atomic", + "tx_sched_directed", + "tx_invalid", + "outstanding_releases", + "max_outstanding_releases", + "rx_sched_ordered", + "rx_sched_unordered", + "rx_sched_atomic", + "rx_sched_directed", + "rx_sched_invalid" + }; + static const enum dlb2_xstats_type port_types[] = { + is_configured, + is_load_balanced, + hw_id, + rx_ok, + rx_drop, + rx_interrupt_wait, + rx_umonitor_umwait, + tx_ok, + total_polls, + zero_polls, + tx_nospc_ldb_hw_credits, + tx_nospc_dir_hw_credits, + tx_nospc_inflight_max, + tx_nospc_new_event_limit, + tx_nospc_inflight_credits, + tx_new, + tx_fwd, + tx_rel, + tx_implicit_rel, + tx_sched_ordered, + tx_sched_unordered, + tx_sched_atomic, + tx_sched_directed, + tx_invalid, + outstanding_releases, + max_outstanding_releases, + rx_sched_ordered, + rx_sched_unordered, + rx_sched_atomic, + rx_sched_directed, + rx_sched_invalid + }; + static const uint8_t port_reset_allowed[] = { + 0, /* is_configured */ + 0, /* is_load_balanced */ + 0, /* hw_id */ + 1, /* rx_ok */ + 1, /* rx_drop */ + 1, /* rx_interrupt_wait */ + 1, /* rx_umonitor_umwait */ + 1, /* tx_ok */ + 1, /* total_polls */ + 1, /* zero_polls */ + 1, /* tx_nospc_ldb_hw_credits */ + 1, /* tx_nospc_dir_hw_credits */ + 1, /* tx_nospc_inflight_max */ + 1, /* tx_nospc_new_event_limit */ + 1, /* tx_nospc_inflight_credits */ + 1, /* tx_new */ + 1, /* tx_fwd */ + 1, /* tx_rel */ + 1, /* tx_implicit_rel */ + 1, /* tx_sched_ordered */ + 1, /* tx_sched_unordered */ + 1, /* tx_sched_atomic */ + 1, /* tx_sched_directed */ + 1, /* tx_invalid */ + 0, /* outstanding_releases */ + 0, /* max_outstanding_releases */ + 1, /* rx_sched_ordered */ + 1, /* rx_sched_unordered */ + 1, /* rx_sched_atomic */ + 1, /* rx_sched_directed */ + 1 /* rx_sched_invalid */ + }; + + /* QID specific stats */ + static const char * const qid_stats[] = { + "is_configured", + "is_load_balanced", + "hw_id", + "num_links", + "sched_type", + "enq_ok", + "current_depth", + "depth_threshold", + "depth_le50_threshold", + "depth_gt50_le75_threshold", + "depth_gt75_le100_threshold", + "depth_gt100_threshold", + }; + static const enum dlb2_xstats_type qid_types[] = { + is_configured, + is_load_balanced, + hw_id, + num_links, + sched_type, + enq_ok, + current_depth, + depth_threshold, + depth_le50_threshold, + depth_gt50_le75_threshold, + depth_gt75_le100_threshold, + depth_gt100_threshold, + }; + static const uint8_t qid_reset_allowed[] = { + 0, /* is_configured */ + 0, /* is_load_balanced */ + 0, /* hw_id */ + 0, /* num_links */ + 0, /* sched_type */ + 1, /* enq_ok */ + 0, /* current_depth */ + 0, /* depth_threshold */ + 1, /* depth_le50_threshold */ + 1, /* depth_gt50_le75_threshold */ + 1, /* depth_gt75_le100_threshold */ + 1, /* depth_gt100_threshold */ + }; + + /* ---- end of stat definitions ---- */ + + /* check sizes, since a missed comma can lead to strings being + * joined by the compiler. + */ + RTE_BUILD_BUG_ON(RTE_DIM(dev_stats) != RTE_DIM(dev_types)); + RTE_BUILD_BUG_ON(RTE_DIM(port_stats) != RTE_DIM(port_types)); + RTE_BUILD_BUG_ON(RTE_DIM(qid_stats) != RTE_DIM(qid_types)); + + RTE_BUILD_BUG_ON(RTE_DIM(dev_stats) != RTE_DIM(dev_reset_allowed)); + RTE_BUILD_BUG_ON(RTE_DIM(port_stats) != RTE_DIM(port_reset_allowed)); + RTE_BUILD_BUG_ON(RTE_DIM(qid_stats) != RTE_DIM(qid_reset_allowed)); + + /* other vars */ + const unsigned int count = RTE_DIM(dev_stats) + + DLB2_MAX_NUM_PORTS * RTE_DIM(port_stats) + + DLB2_MAX_NUM_QUEUES * RTE_DIM(qid_stats); + unsigned int i, port, qid, stat_id = 0; + + dlb2->xstats = rte_zmalloc_socket(NULL, + sizeof(dlb2->xstats[0]) * count, 0, + dlb2->qm_instance.info.socket_id); + if (dlb2->xstats == NULL) + return -ENOMEM; + +#define sname dlb2->xstats[stat_id].name.name + for (i = 0; i < RTE_DIM(dev_stats); i++, stat_id++) { + dlb2->xstats[stat_id] = (struct dlb2_xstats_entry) { + .fn_id = DLB2_XSTATS_FN_DEV, + .stat = dev_types[i], + .mode = RTE_EVENT_DEV_XSTATS_DEVICE, + .reset_allowed = dev_reset_allowed[i], + }; + snprintf(sname, sizeof(sname), "dev_%s", dev_stats[i]); + } + dlb2->xstats_count_mode_dev = stat_id; + + for (port = 0; port < DLB2_MAX_NUM_PORTS; port++) { + dlb2->xstats_offset_for_port[port] = stat_id; + + uint32_t count_offset = stat_id; + + for (i = 0; i < RTE_DIM(port_stats); i++, stat_id++) { + dlb2->xstats[stat_id] = (struct dlb2_xstats_entry){ + .fn_id = DLB2_XSTATS_FN_PORT, + .obj_idx = port, + .stat = port_types[i], + .mode = RTE_EVENT_DEV_XSTATS_PORT, + .reset_allowed = port_reset_allowed[i], + }; + snprintf(sname, sizeof(sname), "port_%u_%s", + port, port_stats[i]); + } + + dlb2->xstats_count_per_port[port] = stat_id - count_offset; + } + + dlb2->xstats_count_mode_port = stat_id - dlb2->xstats_count_mode_dev; + + for (qid = 0; qid < DLB2_MAX_NUM_QUEUES; qid++) { + uint32_t count_offset = stat_id; + + dlb2->xstats_offset_for_qid[qid] = stat_id; + + for (i = 0; i < RTE_DIM(qid_stats); i++, stat_id++) { + dlb2->xstats[stat_id] = (struct dlb2_xstats_entry){ + .fn_id = DLB2_XSTATS_FN_QUEUE, + .obj_idx = qid, + .stat = qid_types[i], + .mode = RTE_EVENT_DEV_XSTATS_QUEUE, + .reset_allowed = qid_reset_allowed[i], + }; + snprintf(sname, sizeof(sname), "qid_%u_%s", + qid, qid_stats[i]); + } + + dlb2->xstats_count_per_qid[qid] = stat_id - count_offset; + } + + dlb2->xstats_count_mode_queue = stat_id - + (dlb2->xstats_count_mode_dev + dlb2->xstats_count_mode_port); +#undef sname + + dlb2->xstats_count = stat_id; + + return 0; +} + +void +dlb2_xstats_uninit(struct dlb2_eventdev *dlb2) +{ + rte_free(dlb2->xstats); + dlb2->xstats_count = 0; +} + +int +dlb2_eventdev_xstats_get_names(const struct rte_eventdev *dev, + enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id, + struct rte_event_dev_xstats_name *xstats_names, + unsigned int *ids, unsigned int size) +{ + const struct dlb2_eventdev *dlb2 = dlb2_pmd_priv(dev); + unsigned int i; + unsigned int xidx = 0; + uint32_t xstats_mode_count = 0; + uint32_t start_offset = 0; + + switch (mode) { + case RTE_EVENT_DEV_XSTATS_DEVICE: + xstats_mode_count = dlb2->xstats_count_mode_dev; + break; + case RTE_EVENT_DEV_XSTATS_PORT: + if (queue_port_id >= DLB2_MAX_NUM_PORTS) + break; + xstats_mode_count = dlb2->xstats_count_per_port[queue_port_id]; + start_offset = dlb2->xstats_offset_for_port[queue_port_id]; + break; + case RTE_EVENT_DEV_XSTATS_QUEUE: +#if (DLB2_MAX_NUM_QUEUES <= 255) /* max 8 bit value */ + if (queue_port_id >= DLB2_MAX_NUM_QUEUES) + break; +#endif + xstats_mode_count = dlb2->xstats_count_per_qid[queue_port_id]; + start_offset = dlb2->xstats_offset_for_qid[queue_port_id]; + break; + default: + return -EINVAL; + }; + + if (xstats_mode_count > size || ids == NULL || xstats_names == NULL) + return xstats_mode_count; + + for (i = 0; i < dlb2->xstats_count && xidx < size; i++) { + if (dlb2->xstats[i].mode != mode) + continue; + + if (mode != RTE_EVENT_DEV_XSTATS_DEVICE && + queue_port_id != dlb2->xstats[i].obj_idx) + continue; + + xstats_names[xidx] = dlb2->xstats[i].name; + if (ids) + ids[xidx] = start_offset + xidx; + xidx++; + } + return xidx; +} + +static int +dlb2_xstats_update(struct dlb2_eventdev *dlb2, + enum rte_event_dev_xstats_mode mode, + uint8_t queue_port_id, const unsigned int ids[], + uint64_t values[], unsigned int n, const uint32_t reset) +{ + unsigned int i; + unsigned int xidx = 0; + uint32_t xstats_mode_count = 0; + + switch (mode) { + case RTE_EVENT_DEV_XSTATS_DEVICE: + xstats_mode_count = dlb2->xstats_count_mode_dev; + break; + case RTE_EVENT_DEV_XSTATS_PORT: + if (queue_port_id >= DLB2_MAX_NUM_PORTS) + goto invalid_value; + xstats_mode_count = dlb2->xstats_count_per_port[queue_port_id]; + break; + case RTE_EVENT_DEV_XSTATS_QUEUE: +#if (DLB2_MAX_NUM_QUEUES <= 255) /* max 8 bit value */ + if (queue_port_id >= DLB2_MAX_NUM_QUEUES) + goto invalid_value; +#endif + xstats_mode_count = dlb2->xstats_count_per_qid[queue_port_id]; + break; + default: + goto invalid_value; + }; + + for (i = 0; i < n && xidx < xstats_mode_count; i++) { + struct dlb2_xstats_entry *xs = &dlb2->xstats[ids[i]]; + dlb2_xstats_fn fn; + + if (ids[i] > dlb2->xstats_count || xs->mode != mode) + continue; + + if (mode != RTE_EVENT_DEV_XSTATS_DEVICE && + queue_port_id != xs->obj_idx) + continue; + + switch (xs->fn_id) { + case DLB2_XSTATS_FN_DEV: + fn = get_dev_stat; + break; + case DLB2_XSTATS_FN_PORT: + fn = get_port_stat; + break; + case DLB2_XSTATS_FN_QUEUE: + fn = get_queue_stat; + break; + default: + DLB2_LOG_ERR("Unexpected xstat fn_id %d\n", xs->fn_id); + goto invalid_value; + } + + uint64_t val = fn(dlb2, xs->obj_idx, xs->stat, + xs->extra_arg) - xs->reset_value; + + if (values) + values[xidx] = val; + + if (xs->reset_allowed && reset) + xs->reset_value += val; + + xidx++; + } + + return xidx; + +invalid_value: + return -EINVAL; +} + +int +dlb2_eventdev_xstats_get(const struct rte_eventdev *dev, + enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id, + const unsigned int ids[], uint64_t values[], unsigned int n) +{ + struct dlb2_eventdev *dlb2 = dlb2_pmd_priv(dev); + const uint32_t reset = 0; + + return dlb2_xstats_update(dlb2, mode, queue_port_id, ids, values, n, + reset); +} + +uint64_t +dlb2_eventdev_xstats_get_by_name(const struct rte_eventdev *dev, + const char *name, unsigned int *id) +{ + struct dlb2_eventdev *dlb2 = dlb2_pmd_priv(dev); + unsigned int i; + dlb2_xstats_fn fn; + + for (i = 0; i < dlb2->xstats_count; i++) { + struct dlb2_xstats_entry *xs = &dlb2->xstats[i]; + + if (strncmp(xs->name.name, name, + RTE_EVENT_DEV_XSTATS_NAME_SIZE) == 0){ + if (id != NULL) + *id = i; + + switch (xs->fn_id) { + case DLB2_XSTATS_FN_DEV: + fn = get_dev_stat; + break; + case DLB2_XSTATS_FN_PORT: + fn = get_port_stat; + break; + case DLB2_XSTATS_FN_QUEUE: + fn = get_queue_stat; + break; + default: + DLB2_LOG_ERR("Unexpected xstat fn_id %d\n", + xs->fn_id); + return (uint64_t)-1; + } + + return fn(dlb2, xs->obj_idx, xs->stat, + xs->extra_arg) - xs->reset_value; + } + } + if (id != NULL) + *id = (uint32_t)-1; + return (uint64_t)-1; +} + +static void +dlb2_xstats_reset_range(struct dlb2_eventdev *dlb2, uint32_t start, + uint32_t num) +{ + uint32_t i; + dlb2_xstats_fn fn; + + for (i = start; i < start + num; i++) { + struct dlb2_xstats_entry *xs = &dlb2->xstats[i]; + + if (!xs->reset_allowed) + continue; + + switch (xs->fn_id) { + case DLB2_XSTATS_FN_DEV: + fn = get_dev_stat; + break; + case DLB2_XSTATS_FN_PORT: + fn = get_port_stat; + break; + case DLB2_XSTATS_FN_QUEUE: + fn = get_queue_stat; + break; + default: + DLB2_LOG_ERR("Unexpected xstat fn_id %d\n", xs->fn_id); + return; + } + + uint64_t val = fn(dlb2, xs->obj_idx, xs->stat, xs->extra_arg); + xs->reset_value = val; + } +} + +static int +dlb2_xstats_reset_queue(struct dlb2_eventdev *dlb2, uint8_t queue_id, + const uint32_t ids[], uint32_t nb_ids) +{ + const uint32_t reset = 1; + + if (ids) { + uint32_t nb_reset = dlb2_xstats_update(dlb2, + RTE_EVENT_DEV_XSTATS_QUEUE, + queue_id, ids, NULL, nb_ids, + reset); + return nb_reset == nb_ids ? 0 : -EINVAL; + } + + if (ids == NULL) + dlb2_xstats_reset_range(dlb2, + dlb2->xstats_offset_for_qid[queue_id], + dlb2->xstats_count_per_qid[queue_id]); + + return 0; +} + +static int +dlb2_xstats_reset_port(struct dlb2_eventdev *dlb2, uint8_t port_id, + const uint32_t ids[], uint32_t nb_ids) +{ + const uint32_t reset = 1; + int offset = dlb2->xstats_offset_for_port[port_id]; + int nb_stat = dlb2->xstats_count_per_port[port_id]; + + if (ids) { + uint32_t nb_reset = dlb2_xstats_update(dlb2, + RTE_EVENT_DEV_XSTATS_PORT, port_id, + ids, NULL, nb_ids, + reset); + return nb_reset == nb_ids ? 0 : -EINVAL; + } + + dlb2_xstats_reset_range(dlb2, offset, nb_stat); + return 0; +} + +static int +dlb2_xstats_reset_dev(struct dlb2_eventdev *dlb2, const uint32_t ids[], + uint32_t nb_ids) +{ + uint32_t i; + + if (ids) { + for (i = 0; i < nb_ids; i++) { + uint32_t id = ids[i]; + + if (id >= dlb2->xstats_count_mode_dev) + return -EINVAL; + dlb2_xstats_reset_range(dlb2, id, 1); + } + } else { + for (i = 0; i < dlb2->xstats_count_mode_dev; i++) + dlb2_xstats_reset_range(dlb2, i, 1); + } + + return 0; +} + +int +dlb2_eventdev_xstats_reset(struct rte_eventdev *dev, + enum rte_event_dev_xstats_mode mode, + int16_t queue_port_id, + const uint32_t ids[], + uint32_t nb_ids) +{ + struct dlb2_eventdev *dlb2 = dlb2_pmd_priv(dev); + uint32_t i; + + /* handle -1 for queue_port_id here, looping over all ports/queues */ + switch (mode) { + case RTE_EVENT_DEV_XSTATS_DEVICE: + if (dlb2_xstats_reset_dev(dlb2, ids, nb_ids)) + return -EINVAL; + break; + case RTE_EVENT_DEV_XSTATS_PORT: + if (queue_port_id == -1) { + for (i = 0; i < DLB2_MAX_NUM_PORTS; i++) { + if (dlb2_xstats_reset_port(dlb2, i, + ids, nb_ids)) + return -EINVAL; + } + } else if (queue_port_id < DLB2_MAX_NUM_PORTS) { + if (dlb2_xstats_reset_port(dlb2, queue_port_id, + ids, nb_ids)) + return -EINVAL; + } + break; + case RTE_EVENT_DEV_XSTATS_QUEUE: + if (queue_port_id == -1) { + for (i = 0; i < DLB2_MAX_NUM_QUEUES; i++) { + if (dlb2_xstats_reset_queue(dlb2, i, + ids, nb_ids)) + return -EINVAL; + } + } else if (queue_port_id < DLB2_MAX_NUM_QUEUES) { + if (dlb2_xstats_reset_queue(dlb2, queue_port_id, + ids, nb_ids)) + return -EINVAL; + } + break; + }; + + return 0; +} + +void +dlb2_eventdev_dump(struct rte_eventdev *dev, FILE *f) +{ + struct dlb2_eventdev *dlb2; + struct dlb2_hw_dev *handle; + int i; + + if (f == NULL) { + printf("Invalid file pointer\n"); + return; + } + + if (dev == NULL) { + fprintf(f, "Invalid event device\n"); + return; + } + + dlb2 = dlb2_pmd_priv(dev); + + if (dlb2 == NULL) { + fprintf(f, "DLB2 Event device cannot be dumped!\n"); + return; + } + + if (!dlb2->configured) + fprintf(f, "DLB2 Event device is not configured\n"); + + handle = &dlb2->qm_instance; + + fprintf(f, "================\n"); + fprintf(f, "DLB2 Device Dump\n"); + fprintf(f, "================\n"); + + fprintf(f, "Processor supports umonitor/umwait instructions = %s\n", + dlb2->umwait_allowed ? "yes" : "no"); + + /* Generic top level device information */ + + fprintf(f, "device is configured and run state ="); + if (dlb2->run_state == DLB2_RUN_STATE_STOPPED) + fprintf(f, "STOPPED\n"); + else if (dlb2->run_state == DLB2_RUN_STATE_STOPPING) + fprintf(f, "STOPPING\n"); + else if (dlb2->run_state == DLB2_RUN_STATE_STARTING) + fprintf(f, "STARTING\n"); + else if (dlb2->run_state == DLB2_RUN_STATE_STARTED) + fprintf(f, "STARTED\n"); + else + fprintf(f, "UNEXPECTED\n"); + + fprintf(f, "domain ID=%u, socket_id=%u, evdev=%p\n", + handle->domain_id, handle->info.socket_id, dlb2->event_dev); + + fprintf(f, "num dir ports=%u, num dir queues=%u\n", + dlb2->num_dir_ports, dlb2->num_dir_queues); + + fprintf(f, "num ldb ports=%u, num ldb queues=%u\n", + dlb2->num_ldb_ports, dlb2->num_ldb_queues); + + fprintf(f, "num atomic inflights=%u, hist list entries=%u\n", + handle->cfg.resources.num_atomic_inflights, + handle->cfg.resources.num_hist_list_entries); + + fprintf(f, "results from most recent hw resource query:\n"); + + fprintf(f, "\tnum_sched_domains = %u\n", + dlb2->hw_rsrc_query_results.num_sched_domains); + + fprintf(f, "\tnum_ldb_queues = %u\n", + dlb2->hw_rsrc_query_results.num_ldb_queues); + + fprintf(f, "\tnum_ldb_ports = %u\n", + dlb2->hw_rsrc_query_results.num_ldb_ports); + + fprintf(f, "\tnum_dir_ports = %u\n", + dlb2->hw_rsrc_query_results.num_dir_ports); + + fprintf(f, "\tnum_atomic_inflights = %u\n", + dlb2->hw_rsrc_query_results.num_atomic_inflights); + + fprintf(f, "\tnum_hist_list_entries = %u\n", + dlb2->hw_rsrc_query_results.num_hist_list_entries); + + fprintf(f, "\tmax_contiguous_hist_list_entries = %u\n", + dlb2->hw_rsrc_query_results.max_contiguous_hist_list_entries); + + fprintf(f, "\tnum_ldb_credits = %u\n", + dlb2->hw_rsrc_query_results.num_ldb_credits); + + fprintf(f, "\tnum_dir_credits = %u\n", + dlb2->hw_rsrc_query_results.num_dir_credits); + + /* Port level information */ + + for (i = 0; i < dlb2->num_ports; i++) { + struct dlb2_eventdev_port *p = &dlb2->ev_ports[i]; + int j; + + if (!p->enq_configured) + fprintf(f, "Port_%d is not configured\n", i); + + fprintf(f, "Port_%d\n", i); + fprintf(f, "=======\n"); + + fprintf(f, "\tevport_%u is configured, setup done=%d\n", + p->id, p->setup_done); + + fprintf(f, "\tconfig state=%d, port state=%d\n", + p->qm_port.config_state, p->qm_port.state); + + fprintf(f, "\tport is %s\n", + p->qm_port.is_directed ? "directed" : "load balanced"); + + fprintf(f, "\toutstanding releases=%u\n", + p->outstanding_releases); + + fprintf(f, "\tinflight max=%u, inflight credits=%u\n", + p->inflight_max, p->inflight_credits); + + fprintf(f, "\tcredit update quanta=%u, implicit release =%u\n", + p->credit_update_quanta, p->implicit_release); + + fprintf(f, "\tnum_links=%d, queues -> ", p->num_links); + + for (j = 0; j < DLB2_MAX_NUM_QIDS_PER_LDB_CQ; j++) { + if (p->link[j].valid) + fprintf(f, "id=%u prio=%u ", + p->link[j].queue_id, + p->link[j].priority); + } + fprintf(f, "\n"); + + fprintf(f, "\thardware port id=%u\n", p->qm_port.id); + + fprintf(f, "\tcached_ldb_credits=%u\n", + p->qm_port.cached_ldb_credits); + + fprintf(f, "\tldb_credits = %u\n", + p->qm_port.ldb_credits); + + fprintf(f, "\tcached_dir_credits = %u\n", + p->qm_port.cached_dir_credits); + + fprintf(f, "\tdir_credits = %u\n", + p->qm_port.dir_credits); + + fprintf(f, "\tgenbit=%d, cq_idx=%d, cq_depth=%d\n", + p->qm_port.gen_bit, + p->qm_port.cq_idx, + p->qm_port.cq_depth); + + fprintf(f, "\tinterrupt armed=%d\n", + p->qm_port.int_armed); + + fprintf(f, "\tPort statistics\n"); + + fprintf(f, "\t\trx_ok %" PRIu64 "\n", + p->stats.traffic.rx_ok); + + fprintf(f, "\t\trx_drop %" PRIu64 "\n", + p->stats.traffic.rx_drop); + + fprintf(f, "\t\trx_interrupt_wait %" PRIu64 "\n", + p->stats.traffic.rx_interrupt_wait); + + fprintf(f, "\t\trx_umonitor_umwait %" PRIu64 "\n", + p->stats.traffic.rx_umonitor_umwait); + + fprintf(f, "\t\ttx_ok %" PRIu64 "\n", + p->stats.traffic.tx_ok); + + fprintf(f, "\t\ttotal_polls %" PRIu64 "\n", + p->stats.traffic.total_polls); + + fprintf(f, "\t\tzero_polls %" PRIu64 "\n", + p->stats.traffic.zero_polls); + + fprintf(f, "\t\ttx_nospc_ldb_hw_credits %" PRIu64 "\n", + p->stats.traffic.tx_nospc_ldb_hw_credits); + + fprintf(f, "\t\ttx_nospc_dir_hw_credits %" PRIu64 "\n", + p->stats.traffic.tx_nospc_dir_hw_credits); + + fprintf(f, "\t\ttx_nospc_inflight_max %" PRIu64 "\n", + p->stats.traffic.tx_nospc_inflight_max); + + fprintf(f, "\t\ttx_nospc_new_event_limit %" PRIu64 "\n", + p->stats.traffic.tx_nospc_new_event_limit); + + fprintf(f, "\t\ttx_nospc_inflight_credits %" PRIu64 "\n", + p->stats.traffic.tx_nospc_inflight_credits); + + fprintf(f, "\t\ttx_new %" PRIu64 "\n", + p->stats.tx_op_cnt[RTE_EVENT_OP_NEW]); + + fprintf(f, "\t\ttx_fwd %" PRIu64 "\n", + p->stats.tx_op_cnt[RTE_EVENT_OP_FORWARD]); + + fprintf(f, "\t\ttx_rel %" PRIu64 "\n", + p->stats.tx_op_cnt[RTE_EVENT_OP_RELEASE]); + + fprintf(f, "\t\ttx_implicit_rel %" PRIu64 "\n", + p->stats.tx_implicit_rel); + + fprintf(f, "\t\ttx_sched_ordered %" PRIu64 "\n", + p->stats.tx_sched_cnt[DLB2_SCHED_ORDERED]); + + fprintf(f, "\t\ttx_sched_unordered %" PRIu64 "\n", + p->stats.tx_sched_cnt[DLB2_SCHED_UNORDERED]); + + fprintf(f, "\t\ttx_sched_atomic %" PRIu64 "\n", + p->stats.tx_sched_cnt[DLB2_SCHED_ATOMIC]); + + fprintf(f, "\t\ttx_sched_directed %" PRIu64 "\n", + p->stats.tx_sched_cnt[DLB2_SCHED_DIRECTED]); + + fprintf(f, "\t\ttx_invalid %" PRIu64 "\n", + p->stats.tx_invalid); + + fprintf(f, "\t\trx_sched_ordered %" PRIu64 "\n", + p->stats.rx_sched_cnt[DLB2_SCHED_ORDERED]); + + fprintf(f, "\t\trx_sched_unordered %" PRIu64 "\n", + p->stats.rx_sched_cnt[DLB2_SCHED_UNORDERED]); + + fprintf(f, "\t\trx_sched_atomic %" PRIu64 "\n", + p->stats.rx_sched_cnt[DLB2_SCHED_ATOMIC]); + + fprintf(f, "\t\trx_sched_directed %" PRIu64 "\n", + p->stats.rx_sched_cnt[DLB2_SCHED_DIRECTED]); + + fprintf(f, "\t\trx_sched_invalid %" PRIu64 "\n", + p->stats.rx_sched_invalid); + } + + /* Queue level information */ + + for (i = 0; i < dlb2->num_queues; i++) { + struct dlb2_eventdev_queue *q = &dlb2->ev_queues[i]; + int j, k; + + if (!q->setup_done) + fprintf(f, "Queue_%d is not configured\n", i); + + fprintf(f, "Queue_%d\n", i); + fprintf(f, "========\n"); + + fprintf(f, "\tevqueue_%u is set up\n", q->id); + + fprintf(f, "\tqueue is %s\n", + q->qm_queue.is_directed ? "directed" : "load balanced"); + + fprintf(f, "\tnum_links=%d, ports -> ", q->num_links); + + for (j = 0; j < dlb2->num_ports; j++) { + struct dlb2_eventdev_port *p = &dlb2->ev_ports[j]; + + for (k = 0; k < DLB2_MAX_NUM_QIDS_PER_LDB_CQ; k++) { + if (p->link[k].valid && + p->link[k].queue_id == q->id) + fprintf(f, "id=%u prio=%u ", + p->id, p->link[k].priority); + } + } + fprintf(f, "\n"); + + fprintf(f, "\tcurrent depth: %u events\n", + dlb2_get_queue_depth(dlb2, q)); + + fprintf(f, "\tnum qid inflights=%u, sched_type=%d\n", + q->qm_queue.num_qid_inflights, q->qm_queue.sched_type); + } +} diff --git a/drivers/event/dlb2/meson.build b/drivers/event/dlb2/meson.build index 28fef3f..dc16c96 100644 --- a/drivers/event/dlb2/meson.build +++ b/drivers/event/dlb2/meson.build @@ -9,6 +9,7 @@ endif sources = files('dlb2.c', 'dlb2_iface.c', + 'dlb2_xstats.c', 'pf/dlb2_main.c', 'pf/dlb2_pf.c', 'pf/base/dlb2_resource.c' -- 2.6.4