> -----Original Message----- > From: Pavan Nikhilesh Bhagavatula <pbhagavat...@marvell.com> > Sent: Wednesday, March 31, 2021 12:10 PM > To: Jayatheerthan, Jay <jay.jayatheert...@intel.com>; Jerin Jacob > Kollanukkaran <jer...@marvell.com>; Carrillo, Erik G > <erik.g.carri...@intel.com>; Gujjar, Abhinandan S > <abhinandan.guj...@intel.com>; McDaniel, Timothy > <timothy.mcdan...@intel.com>; hemant.agra...@nxp.com; Van Haaren, Harry > <harry.van.haa...@intel.com>; mattias.ronnblom > <mattias.ronnb...@ericsson.com>; Ma, Liang J <liang.j...@intel.com> > Cc: dev@dpdk.org > Subject: RE: [dpdk-dev] [PATCH v9 4/8] eventdev: add Rx adapter event vector > support > > >> -----Original Message----- > >> From: pbhagavat...@marvell.com <pbhagavat...@marvell.com> > >> Sent: Tuesday, March 30, 2021 1:52 PM > >> To: jer...@marvell.com; Jayatheerthan, Jay > ><jay.jayatheert...@intel.com>; Carrillo, Erik G > ><erik.g.carri...@intel.com>; Gujjar, > >> Abhinandan S <abhinandan.guj...@intel.com>; McDaniel, Timothy > ><timothy.mcdan...@intel.com>; hemant.agra...@nxp.com; Van > >> Haaren, Harry <harry.van.haa...@intel.com>; mattias.ronnblom > ><mattias.ronnb...@ericsson.com>; Ma, Liang J > >> <liang.j...@intel.com> > >> Cc: dev@dpdk.org; Pavan Nikhilesh <pbhagavat...@marvell.com> > >> Subject: [dpdk-dev] [PATCH v9 4/8] eventdev: add Rx adapter event > >vector support > >> > >> From: Pavan Nikhilesh <pbhagavat...@marvell.com> > >> > >> Add event vector support for event eth Rx adapter, the > >implementation > >> creates vector flows based on port and queue identifier of the > >received > >> mbufs. > >> The flow id for SW Rx event vectorization will use 12-bits of queue > >> identifier and 8-bits port identifier when custom flow id is not set > >> for simplicity. > >> > >> Signed-off-by: Pavan Nikhilesh <pbhagavat...@marvell.com> > >> --- > >> .../prog_guide/event_ethernet_rx_adapter.rst | 11 + > >> lib/librte_eventdev/eventdev_pmd.h | 7 +- > >> .../rte_event_eth_rx_adapter.c | 278 ++++++++++++++++-- > >> lib/librte_eventdev/rte_eventdev.c | 6 +- > >> 4 files changed, 278 insertions(+), 24 deletions(-) > >> > >> diff --git a/doc/guides/prog_guide/event_ethernet_rx_adapter.rst > >b/doc/guides/prog_guide/event_ethernet_rx_adapter.rst > >> index 5eefef355..06fa864fa 100644 > >> --- a/doc/guides/prog_guide/event_ethernet_rx_adapter.rst > >> +++ b/doc/guides/prog_guide/event_ethernet_rx_adapter.rst > >> @@ -224,3 +224,14 @@ A loop processing ``rte_event_vector`` > >containing mbufs is shown below. > >> case ... > >> ... > >> } > >> + > >> +Rx event vectorization for SW Rx adapter > >> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >> + > >> +For SW based event vectorization, i.e., when the > >> +``RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT`` is not set > >in the adapter's > >> +capabilities flags for a particular ethernet device, the service > >function > >> +creates a single event vector flow for all the mbufs arriving on the > >given > >> +Rx queue. > >> +The 20-bit event flow identifier is set to 12-bits of Rx queue identifier > >> +and 8-bits of ethernet device identifier.
Could you add a format like below ? 19 12,11 0 +-----------+--------------+ | port_id | queue_id | +-----------+--------------+ > >> diff --git a/lib/librte_eventdev/eventdev_pmd.h > >b/lib/librte_eventdev/eventdev_pmd.h > >> index 9297f1433..0f724ac85 100644 > >> --- a/lib/librte_eventdev/eventdev_pmd.h > >> +++ b/lib/librte_eventdev/eventdev_pmd.h > >> @@ -69,9 +69,10 @@ extern "C" { > >> } \ > >> } while (0) > >> > >> -#define RTE_EVENT_ETH_RX_ADAPTER_SW_CAP \ > >> - > > ((RTE_EVENT_ETH_RX_ADAPTER_CAP_OVERRIDE_FLOW_ID) | > >\ > >> - > > (RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ)) > >> +#define RTE_EVENT_ETH_RX_ADAPTER_SW_CAP > >\ > >> + ((RTE_EVENT_ETH_RX_ADAPTER_CAP_OVERRIDE_FLOW_ID) | > >\ > >> + (RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ) | > >\ > >> + (RTE_EVENT_ETH_RX_ADAPTER_CAP_EVENT_VECTOR)) > >> > >> #define RTE_EVENT_CRYPTO_ADAPTER_SW_CAP \ > >> > > RTE_EVENT_CRYPTO_ADAPTER_CAP_SESSION_PRIVATE_DATA > >> diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c > >b/lib/librte_eventdev/rte_event_eth_rx_adapter.c > >> index ac8ba5bf0..e273b3acf 100644 > >> --- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c > >> +++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c > >> @@ -26,6 +26,10 @@ > >> #define BATCH_SIZE 32 > >> #define BLOCK_CNT_THRESHOLD 10 > >> #define ETH_EVENT_BUFFER_SIZE (4*BATCH_SIZE) > >> +#define MAX_VECTOR_SIZE 1024 > >> +#define MIN_VECTOR_SIZE 4 > >> +#define MAX_VECTOR_NS 1E9 > >> +#define MIN_VECTOR_NS 1E5 > >> > >> #define ETH_RX_ADAPTER_SERVICE_NAME_LEN 32 > >> #define ETH_RX_ADAPTER_MEM_NAME_LEN 32 > >> @@ -59,6 +63,20 @@ struct eth_rx_poll_entry { > >> uint16_t eth_rx_qid; > >> }; > >> > >> +struct eth_rx_vector_data { > >> + TAILQ_ENTRY(eth_rx_vector_data) next; > >> + uint16_t port; > >> + uint16_t queue; > >> + uint16_t max_vector_count; > >> + uint64_t event; > >> + uint64_t ts; > >> + uint64_t vector_timeout_ticks; > >> + struct rte_mempool *vector_pool; > >> + struct rte_event_vector *vector_ev; > >> +} __rte_cache_aligned; > >> + > >> +TAILQ_HEAD(eth_rx_vector_data_list, eth_rx_vector_data); > >> + > >> /* Instance per adapter */ > >> struct rte_eth_event_enqueue_buffer { > >> /* Count of events in this buffer */ > >> @@ -92,6 +110,14 @@ struct rte_event_eth_rx_adapter { > >> uint32_t wrr_pos; > >> /* Event burst buffer */ > >> struct rte_eth_event_enqueue_buffer event_enqueue_buffer; > >> + /* Vector enable flag */ > >> + uint8_t ena_vector; > >> + /* Timestamp of previous vector expiry list traversal */ > >> + uint64_t prev_expiry_ts; > >> + /* Minimum ticks to wait before traversing expiry list */ > >> + uint64_t vector_tmo_ticks; > >> + /* vector list */ > >> + struct eth_rx_vector_data_list vector_list; > >> /* Per adapter stats */ > >> struct rte_event_eth_rx_adapter_stats stats; > >> /* Block count, counts up to BLOCK_CNT_THRESHOLD */ > >> @@ -198,9 +224,11 @@ struct eth_device_info { > >> struct eth_rx_queue_info { > >> int queue_enabled; /* True if added */ > >> int intr_enabled; > >> + uint8_t ena_vector; > >> uint16_t wt; /* Polling weight */ > >> uint32_t flow_id_mask; /* Set to ~0 if app provides flow id else > >0 */ > >> uint64_t event; > >> + struct eth_rx_vector_data vector_data; > >> }; > >> > >> static struct rte_event_eth_rx_adapter **event_eth_rx_adapter; > >> @@ -722,6 +750,9 @@ rxa_flush_event_buffer(struct > >rte_event_eth_rx_adapter *rx_adapter) > >> &rx_adapter->event_enqueue_buffer; > >> struct rte_event_eth_rx_adapter_stats *stats = &rx_adapter- > >>stats; > >> > >> + if (!buf->count) > >> + return 0; > >> + > >> uint16_t n = rte_event_enqueue_new_burst(rx_adapter- > >>eventdev_id, > >> rx_adapter->event_port_id, > >> buf->events, > >> @@ -742,6 +773,77 @@ rxa_flush_event_buffer(struct > >rte_event_eth_rx_adapter *rx_adapter) > >> return n; > >> } > >> > >> +static inline void > >> +rxa_init_vector(struct rte_event_eth_rx_adapter *rx_adapter, > >> + struct eth_rx_vector_data *vec) > >> +{ > >> + vec->vector_ev->nb_elem = 0; > >> + vec->vector_ev->port = vec->port; > >> + vec->vector_ev->queue = vec->queue; > >> + vec->vector_ev->attr_valid = true; > >> + TAILQ_INSERT_TAIL(&rx_adapter->vector_list, vec, next); > >> +} > >> + > >> +static inline uint16_t > >> +rxa_create_event_vector(struct rte_event_eth_rx_adapter > >*rx_adapter, > >> + struct eth_rx_queue_info *queue_info, > >> + struct rte_eth_event_enqueue_buffer *buf, > >> + struct rte_mbuf **mbufs, uint16_t num) > >> +{ > >> + struct rte_event *ev = &buf->events[buf->count]; > >> + struct eth_rx_vector_data *vec; > >> + uint16_t filled, space, sz; > >> + > >> + filled = 0; > >> + vec = &queue_info->vector_data; > >> + > >> + if (vec->vector_ev == NULL) { > >> + if (rte_mempool_get(vec->vector_pool, > >> + (void **)&vec->vector_ev) < 0) { > >> + rte_pktmbuf_free_bulk(mbufs, num); > >> + return 0; > >> + } > >> + rxa_init_vector(rx_adapter, vec); > >> + } > >> + while (num) { > >> + if (vec->vector_ev->nb_elem == vec- > >>max_vector_count) { > >> + /* Event ready. */ > >> + ev->event = vec->event; > >> + ev->vec = vec->vector_ev; > >> + ev++; > >> + filled++; > >> + vec->vector_ev = NULL; > >> + TAILQ_REMOVE(&rx_adapter->vector_list, vec, > >next); > >> + if (rte_mempool_get(vec->vector_pool, > >> + (void **)&vec->vector_ev) < > >0) { > >> + rte_pktmbuf_free_bulk(mbufs, num); > >> + return 0; > >> + } > >> + rxa_init_vector(rx_adapter, vec); > >> + } > >> + > >> + space = vec->max_vector_count - vec->vector_ev- > >>nb_elem; > >> + sz = num > space ? space : num; > >> + memcpy(vec->vector_ev->mbufs + vec->vector_ev- > >>nb_elem, mbufs, > >> + sizeof(void *) * sz); > >> + vec->vector_ev->nb_elem += sz; > >> + num -= sz; > >> + mbufs += sz; > >> + vec->ts = rte_rdtsc(); > >> + } > >> + > >> + if (vec->vector_ev->nb_elem == vec->max_vector_count) { > >> + ev->event = vec->event; > >> + ev->vec = vec->vector_ev; > >> + ev++; > >> + filled++; > >> + vec->vector_ev = NULL; > >> + TAILQ_REMOVE(&rx_adapter->vector_list, vec, next); > >> + } > >> + > >> + return filled; > >> +} > >> + > >> static inline void > >> rxa_buffer_mbufs(struct rte_event_eth_rx_adapter *rx_adapter, > >> uint16_t eth_dev_id, > >> @@ -766,29 +868,33 @@ rxa_buffer_mbufs(struct > >rte_event_eth_rx_adapter *rx_adapter, > >> uint16_t nb_cb; > >> uint16_t dropped; > >> > >> - /* 0xffff ffff if PKT_RX_RSS_HASH is set, otherwise 0 */ > >> - rss_mask = ~(((m->ol_flags & PKT_RX_RSS_HASH) != 0) - 1); > >> - do_rss = !rss_mask && !eth_rx_queue_info->flow_id_mask; > >> - > >> - for (i = 0; i < num; i++) { > >> - m = mbufs[i]; > >> - > >> - rss = do_rss ? > >> - rxa_do_softrss(m, rx_adapter->rss_key_be) : > >> - m->hash.rss; > >> - ev->event = event; > >> - ev->flow_id = (rss & ~flow_id_mask) | > >> - (ev->flow_id & flow_id_mask); > >> - ev->mbuf = m; > >> - ev++; > >> + if (!eth_rx_queue_info->ena_vector) { > >> + /* 0xffff ffff if PKT_RX_RSS_HASH is set, otherwise 0 */ > >> + rss_mask = ~(((m->ol_flags & PKT_RX_RSS_HASH) != 0) - > >1); > >> + do_rss = !rss_mask && !eth_rx_queue_info- > >>flow_id_mask; > >> + for (i = 0; i < num; i++) { > >> + m = mbufs[i]; > >> + > >> + rss = do_rss ? rxa_do_softrss(m, rx_adapter- > >>rss_key_be) > >> + : m->hash.rss; > >> + ev->event = event; > >> + ev->flow_id = (rss & ~flow_id_mask) | > >> + (ev->flow_id & flow_id_mask); > >> + ev->mbuf = m; > >> + ev++; > >> + } > >> + } else { > >> + num = rxa_create_event_vector(rx_adapter, > >eth_rx_queue_info, > >> + buf, mbufs, num); > >> } > >> > >> - if (dev_info->cb_fn) { > >> + if (num && dev_info->cb_fn) { > >> > >> dropped = 0; > >> nb_cb = dev_info->cb_fn(eth_dev_id, rx_queue_id, > >> - ETH_EVENT_BUFFER_SIZE, buf- > >>count, ev, > >> - num, dev_info->cb_arg, > >&dropped); > >> + ETH_EVENT_BUFFER_SIZE, buf- > >>count, > >> + &buf->events[buf->count], > >num, > >> + dev_info->cb_arg, &dropped); > >> if (unlikely(nb_cb > num)) > >> RTE_EDEV_LOG_ERR("Rx CB returned %d (> %d) > >events", > >> nb_cb, num); > >> @@ -1124,6 +1230,30 @@ rxa_poll(struct rte_event_eth_rx_adapter > >*rx_adapter) > >> return nb_rx; > >> } > >> > >> +static void > >> +rxa_vector_expire(struct eth_rx_vector_data *vec, void *arg) > >> +{ > >> + struct rte_event_eth_rx_adapter *rx_adapter = arg; > >> + struct rte_eth_event_enqueue_buffer *buf = > >> + &rx_adapter->event_enqueue_buffer; > >> + struct rte_event *ev; > >> + > >> + if (buf->count) > >> + rxa_flush_event_buffer(rx_adapter); > >> + > >> + if (vec->vector_ev->nb_elem == 0) > >> + return; > >> + ev = &buf->events[buf->count]; > >> + > >> + /* Event ready. */ > >> + ev->event = vec->event; > >> + ev->vec = vec->vector_ev; > >> + buf->count++; > >> + > >> + vec->vector_ev = NULL; > >> + vec->ts = 0; > >> +} > >> + > >> static int > >> rxa_service_func(void *args) > >> { > >> @@ -1137,6 +1267,24 @@ rxa_service_func(void *args) > >> return 0; > >> } > >> > >> + if (rx_adapter->ena_vector) { > >> + if ((rte_rdtsc() - rx_adapter->prev_expiry_ts) >= > >> + rx_adapter->vector_tmo_ticks) { > >> + struct eth_rx_vector_data *vec; > >> + > >> + TAILQ_FOREACH(vec, &rx_adapter->vector_list, > >next) { > >> + uint64_t elapsed_time = rte_rdtsc() - > >vec->ts; > >> + > >> + if (elapsed_time >= vec- > >>vector_timeout_ticks) { > >> + rxa_vector_expire(vec, > >rx_adapter); > >> + TAILQ_REMOVE(&rx_adapter- > >>vector_list, > >> + vec, next); > >> + } > >> + } > >> + rx_adapter->prev_expiry_ts = rte_rdtsc(); > >> + } > >> + } > >> + > >> stats = &rx_adapter->stats; > >> stats->rx_packets += rxa_intr_ring_dequeue(rx_adapter); > >> stats->rx_packets += rxa_poll(rx_adapter); > >> @@ -1640,11 +1788,35 @@ rxa_update_queue(struct > >rte_event_eth_rx_adapter *rx_adapter, > >> } > >> } > >> > >> +static void > >> +rxa_set_vector_data(struct eth_rx_queue_info *queue_info, > >uint16_t vector_count, > >> + uint64_t vector_ns, struct rte_mempool *mp, int32_t > >qid, > >> + uint16_t port_id) > >> +{ > >> +#define NSEC2TICK(__ns, __freq) (((__ns) * (__freq)) / 1E9) > >> + struct eth_rx_vector_data *vector_data; > >> + uint32_t flow_id; > >> + > >> + vector_data = &queue_info->vector_data; > >> + vector_data->max_vector_count = vector_count; > >> + vector_data->port = port_id; > >> + vector_data->queue = qid; > >> + vector_data->vector_pool = mp; > >> + vector_data->vector_timeout_ticks = > >> + NSEC2TICK(vector_ns, rte_get_timer_hz()); > >> + vector_data->ts = 0; > >> + flow_id = queue_info->event & 0xFFFFF; > >> + flow_id = > >> + flow_id == 0 ? (qid & 0xFFF) | (port_id & 0xFF) << 12 : > >flow_id; > >> + vector_data->event = (queue_info->event & ~0xFFFFF) | > >flow_id; > >> +} > >> + > >> static void > >> rxa_sw_del(struct rte_event_eth_rx_adapter *rx_adapter, > >> struct eth_device_info *dev_info, > >> int32_t rx_queue_id) > >> { > >> + struct eth_rx_vector_data *vec; > >> int pollq; > >> int intrq; > >> int sintrq; > >> @@ -1663,6 +1835,14 @@ rxa_sw_del(struct > >rte_event_eth_rx_adapter *rx_adapter, > >> return; > >> } > >> > >> + /* Push all the partial event vectors to event device. */ > >> + TAILQ_FOREACH(vec, &rx_adapter->vector_list, next) { > >> + if (vec->queue != rx_queue_id) > >> + continue; > >> + rxa_vector_expire(vec, rx_adapter); > >> + TAILQ_REMOVE(&rx_adapter->vector_list, vec, next); > >> + } > >> + > > > >We are doing packet related activity (rxa_flush_event_buffer()) outside > >of rxa_service_func() although it wouldn't be running since queue del > >code has the lock. It would also be done in the context of a control > >thread. I don't know if there is a precedence for this. What do you think > >of just freeing the vector data and mbufs ? > > Since we are just enqueueing to event device it should work fine. > The teardown sequence for event devices is to quiesce all producers first > and finally the event device. > This will make sure that the packets get handled properly with the stop > callback registered through `rte_event_dev_stop_flush_callback_register`. > > > > >> pollq = rxa_polled_queue(dev_info, rx_queue_id); > >> intrq = rxa_intr_queue(dev_info, rx_queue_id); > >> sintrq = rxa_shared_intr(dev_info, rx_queue_id); > >> @@ -1741,6 +1921,42 @@ rxa_add_queue(struct > >rte_event_eth_rx_adapter *rx_adapter, > >> } > >> } > >> > >> +static void > >> +rxa_sw_event_vector_configure( > >> + struct rte_event_eth_rx_adapter *rx_adapter, uint16_t > >eth_dev_id, > >> + int rx_queue_id, > >> + const struct rte_event_eth_rx_adapter_event_vector_config > >*config) > >> +{ > >> + struct eth_device_info *dev_info = &rx_adapter- > >>eth_devices[eth_dev_id]; > >> + struct eth_rx_queue_info *queue_info; > >> + struct rte_event *qi_ev; > >> + > >> + if (rx_queue_id == -1) { > >> + uint16_t nb_rx_queues; > >> + uint16_t i; > >> + > >> + nb_rx_queues = dev_info->dev->data->nb_rx_queues; > >> + for (i = 0; i < nb_rx_queues; i++) > >> + rxa_sw_event_vector_configure(rx_adapter, > >eth_dev_id, i, > >> + config); > >> + return; > >> + } > >> + > >> + queue_info = &dev_info->rx_queue[rx_queue_id]; > >> + qi_ev = (struct rte_event *)&queue_info->event; > >> + queue_info->ena_vector = 1; > >> + qi_ev->event_type = > >RTE_EVENT_TYPE_ETH_RX_ADAPTER_VECTOR; > >> + rxa_set_vector_data(queue_info, config->vector_sz, > >> + config->vector_timeout_ns, config- > >>vector_mp, > >> + rx_queue_id, dev_info->dev->data->port_id); > >> + rx_adapter->ena_vector = 1; > >> + rx_adapter->vector_tmo_ticks = > >> + rx_adapter->vector_tmo_ticks ? > >> + RTE_MIN(config->vector_timeout_ns >> 1, > >> + rx_adapter->vector_tmo_ticks) : > >> + config->vector_timeout_ns >> 1; > >> +} > >> + > >> static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter, > >> uint16_t eth_dev_id, > >> int rx_queue_id, > >> @@ -1967,6 +2183,7 @@ > >rte_event_eth_rx_adapter_create_ext(uint8_t id, uint8_t dev_id, > >> rx_adapter->conf_cb = conf_cb; > >> rx_adapter->conf_arg = conf_arg; > >> rx_adapter->id = id; > >> + TAILQ_INIT(&rx_adapter->vector_list); > >> strcpy(rx_adapter->mem_name, mem_name); > >> rx_adapter->eth_devices = rte_zmalloc_socket(rx_adapter- > >>mem_name, > >> RTE_MAX_ETHPORTS * > >> @@ -2081,6 +2298,15 @@ > >rte_event_eth_rx_adapter_queue_add(uint8_t id, > >> return -EINVAL; > >> } > >> > >> + if ((cap & > >RTE_EVENT_ETH_RX_ADAPTER_CAP_EVENT_VECTOR) == 0 && > >> + (queue_conf->rx_queue_flags & > >> + RTE_EVENT_ETH_RX_ADAPTER_QUEUE_EVENT_VECTOR)) { > >> + RTE_EDEV_LOG_ERR("Event vectorization is not > >supported," > >> + " eth port: %" PRIu16 " adapter id: %" > >PRIu8, > >> + eth_dev_id, id); > >> + return -EINVAL; > >> + } > >> + > >> if ((cap & > >RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ) == 0 && > >> (rx_queue_id != -1)) { > >> RTE_EDEV_LOG_ERR("Rx queues can only be connected > >to single " > >> @@ -2143,6 +2369,17 @@ > >rte_event_eth_rx_adapter_queue_add(uint8_t id, > >> return 0; > >> } > >> > >> +static int > >> +rxa_sw_vector_limits(struct > >rte_event_eth_rx_adapter_vector_limits *limits) > >> +{ > >> + limits->max_sz = MAX_VECTOR_SIZE; > >> + limits->min_sz = MIN_VECTOR_SIZE; > >> + limits->max_timeout_ns = MAX_VECTOR_NS; > >> + limits->min_timeout_ns = MIN_VECTOR_NS; > >> + > >> + return 0; > >> +} > >> + > >> int > >> rte_event_eth_rx_adapter_queue_del(uint8_t id, uint16_t > >eth_dev_id, > >> int32_t rx_queue_id) > >> @@ -2333,7 +2570,8 @@ > >rte_event_eth_rx_adapter_queue_event_vector_config( > >> ret = dev->dev_ops- > >>eth_rx_adapter_event_vector_config( > >> dev, &rte_eth_devices[eth_dev_id], > >rx_queue_id, config); > >> } else { > >> - ret = -ENOTSUP; > >> + rxa_sw_event_vector_configure(rx_adapter, > >eth_dev_id, > >> + rx_queue_id, config); > >> } > >> > >> return ret; > >> @@ -2371,7 +2609,7 @@ > >rte_event_eth_rx_adapter_vector_limits_get( > >> ret = dev->dev_ops- > >>eth_rx_adapter_vector_limits_get( > >> dev, &rte_eth_devices[eth_port_id], limits); > >> } else { > >> - ret = -ENOTSUP; > >> + ret = rxa_sw_vector_limits(limits); > >> } > >> > >> return ret; > >> diff --git a/lib/librte_eventdev/rte_eventdev.c > >b/lib/librte_eventdev/rte_eventdev.c > >> index be0499c52..62824654b 100644 > >> --- a/lib/librte_eventdev/rte_eventdev.c > >> +++ b/lib/librte_eventdev/rte_eventdev.c > >> @@ -122,7 +122,11 @@ rte_event_eth_rx_adapter_caps_get(uint8_t > >dev_id, uint16_t eth_port_id, > >> > >> if (caps == NULL) > >> return -EINVAL; > >> - *caps = 0; > >> + > >> + if (dev->dev_ops->eth_rx_adapter_caps_get == NULL) > >> + *caps = RTE_EVENT_ETH_RX_ADAPTER_SW_CAP; > >> + else > >> + *caps = 0; > >> > >> return dev->dev_ops->eth_rx_adapter_caps_get ? > >> (*dev->dev_ops- > >>eth_rx_adapter_caps_get)(dev, > >> -- > >> 2.17.1 With the above change, you can add Acked-by: Jay Jayatheerthan <jay.jayatheert...@intel.com>.