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[31.172.191.173]) by smtp.gmail.com with ESMTPSA id i6-v6sm5157497lji.49.2018.05.09.05.46.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 May 2018 05:46:15 -0700 (PDT) From: Michal Krawczyk To: Marcin Wojtas , Michal Krawczyk , Guy Tzalik , Evgeny Schemeilin Cc: dev@dpdk.org, matua@amazon.com, Rafal Kozik Date: Wed, 9 May 2018 14:45:50 +0200 Message-Id: <20180509124552.22854-6-mk@semihalf.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180509124552.22854-1-mk@semihalf.com> References: <20180509124552.22854-1-mk@semihalf.com> Subject: [dpdk-dev] [PATCH v1 06/24] net/ena: handle ENA notification 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" From: Rafal Kozik When ENA notifications are provided ena_notification handler is called. It checks if received value is not corrupted and if necessary it reports proper warnings. Data received from NIC is parsed in ena_update_hints. Fields for storing those information was added to ena_adapter structure. ENA notification are enabled by setting ENA_ADMIN_NOTIFICATION flag in aenq_groups. Signed-off-by: Rafal Kozik Acked-by: Michal Krawczyk --- drivers/net/ena/ena_ethdev.c | 41 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 39 insertions(+), 2 deletions(-) -- 2.14.1 diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c index e9011e721..09a5ee6c8 100644 --- a/drivers/net/ena/ena_ethdev.c +++ b/drivers/net/ena/ena_ethdev.c @@ -1305,7 +1305,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev, goto err_admin_init; } - aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE); + aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE) | + BIT(ENA_ADMIN_NOTIFICATION); aenq_groups &= get_feat_ctx->aenq.supported_groups; rc = ena_com_set_aenq_config(ena_dev, aenq_groups); @@ -1781,6 +1782,19 @@ eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, return i; } +static void ena_update_hints(struct ena_adapter *adapter, + struct ena_admin_ena_hw_hints *hints) +{ + if (hints->admin_completion_tx_timeout) + adapter->ena_dev.admin_queue.completion_timeout = + hints->admin_completion_tx_timeout * 1000; + + if (hints->mmio_read_timeout) + /* convert to usec */ + adapter->ena_dev.mmio_read.reg_read_to = + hints->mmio_read_timeout * 1000; +} + static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) { @@ -1976,6 +1990,29 @@ static void ena_update_on_link_change(void *adapter_data, _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL); } +static void ena_notification(void *data, + struct ena_admin_aenq_entry *aenq_e) +{ + struct ena_adapter *adapter = (struct ena_adapter *)data; + struct ena_admin_ena_hw_hints *hints; + + if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION) + RTE_LOG(WARNING, PMD, "Invalid group(%x) expected %x\n", + aenq_e->aenq_common_desc.group, + ENA_ADMIN_NOTIFICATION); + + switch (aenq_e->aenq_common_desc.syndrom) { + case ENA_ADMIN_UPDATE_HINTS: + hints = (struct ena_admin_ena_hw_hints *) + (&aenq_e->inline_data_w4); + ena_update_hints(adapter, hints); + break; + default: + RTE_LOG(ERR, PMD, "Invalid aenq notification link state %d\n", + aenq_e->aenq_common_desc.syndrom); + } +} + /** * This handler will called for unknown event group or unimplemented handlers **/ @@ -1988,7 +2025,7 @@ static void unimplemented_aenq_handler(__rte_unused void *data, static struct ena_aenq_handlers aenq_handlers = { .handlers = { [ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change, - [ENA_ADMIN_NOTIFICATION] = unimplemented_aenq_handler, + [ENA_ADMIN_NOTIFICATION] = ena_notification, [ENA_ADMIN_KEEP_ALIVE] = unimplemented_aenq_handler }, .unimplemented_handler = unimplemented_aenq_handler