From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C28ACD98D2 for ; Sun, 14 Jun 2026 09:25:00 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 67A1E43699; Sun, 14 Jun 2026 11:23:50 +0200 (CEST) Received: from cstnet.cn (smtp25.cstnet.cn [159.226.251.25]) by mails.dpdk.org (Postfix) with ESMTP id 7B9EE4366F for ; Sun, 14 Jun 2026 11:23:37 +0200 (CEST) Received: from localhost.localdomain (unknown [118.112.177.181]) by APP-05 (Coremail) with SMTP id zQCowABXrtEQcy5qVi9yEw--.28230S18; Sun, 14 Jun 2026 17:23:36 +0800 (CST) From: liujie5@linkdatatechnology.com To: stephen@networkplumber.org Cc: dev@dpdk.org, Jie Liu Subject: [PATCH v2 14/20] net/sxe2: implement get monitor address Date: Sun, 14 Jun 2026 17:23:18 +0800 Message-ID: <20260614092328.201826-17-liujie5@linkdatatechnology.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260614092328.201826-1-liujie5@linkdatatechnology.com> References: <20260610013936.3634968-21-liujie5@linkdatatechnology.com> <20260614092328.201826-1-liujie5@linkdatatechnology.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: zQCowABXrtEQcy5qVi9yEw--.28230S18 X-Coremail-Antispam: 1UD129KBjvJXoWxXFW8AF1fWF1kZFW3Ww15urg_yoW5Xw4kpF 4kX34fZF1rJa17Ww1fGa1fuF1Yga1xtFyjkrWI934fuF1kJF17AFZ8tFyYy3WjyryUGF1S vFsrArsrGayrur7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBv14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr 1l84ACjcxK6I8E87Iv67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1U M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4kE6xkIj40Ew7xC0wCF04 k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18 MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jrv_JF1lIxkGc2Ij64vIr4 1lIxAIcVC0I7IYx2IY67AKxVW8JVW5JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1l IxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4 A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUB89_UUUUU= X-Originating-IP: [118.112.177.181] X-CM-SenderInfo: xolxyxrhv6zxpqngt3pdwhux5qro0w31of0z/ X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Jie Liu This patch implements the 'get_monitor_addr' ethdev ops in the sxe2 PMD. This interface allows the Ethernet device to provide the address of the next expected Rx descriptor to the power management library. The implementation calculates the address of the next Rx descriptor based on the receive queue's current hardware ring position and descriptor size. Applications can then use this address with rte_power_monitor() to put the CPU into a low-power state until new packets are written to the descriptor by the hardware. Signed-off-by: Jie Liu --- drivers/net/sxe2/sxe2_ethdev.c | 2 ++ drivers/net/sxe2/sxe2_rx.c | 21 +++++++++++++++++++++ drivers/net/sxe2/sxe2_rx.h | 2 ++ 3 files changed, 25 insertions(+) diff --git a/drivers/net/sxe2/sxe2_ethdev.c b/drivers/net/sxe2/sxe2_ethdev.c index 9a669f26f3..e94d10210a 100644 --- a/drivers/net/sxe2/sxe2_ethdev.c +++ b/drivers/net/sxe2/sxe2_ethdev.c @@ -186,6 +186,8 @@ static const struct eth_dev_ops sxe2_eth_dev_ops = { .queue_stats_mapping_set = sxe2_queue_stats_mapping_set, .fw_version_get = sxe2_fw_version_string_get, + + .get_monitor_addr = sxe2_get_monitor_addr, }; static int32_t sxe2_dev_configure(struct rte_eth_dev *dev) diff --git a/drivers/net/sxe2/sxe2_rx.c b/drivers/net/sxe2/sxe2_rx.c index 007192c7d8..79e65cfbf1 100644 --- a/drivers/net/sxe2/sxe2_rx.c +++ b/drivers/net/sxe2/sxe2_rx.c @@ -557,3 +557,24 @@ void __rte_cold sxe2_rxqs_all_stop(struct rte_eth_dev *dev) } } } + +static int32_t sxe2_monitor_callback(const uint64_t value, + const uint64_t arg[RTE_POWER_MONITOR_OPAQUE_SZ] __rte_unused) +{ + const uint64_t dd_state = rte_cpu_to_le_64(SXE2_RX_DESC_STATUS_DD_MASK); + return (value & dd_state) == dd_state ? -1 : 0; +} + +int32_t sxe2_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc) +{ + volatile union sxe2_rx_desc *rxdp; + struct sxe2_rx_queue *rxq = (struct sxe2_rx_queue *)rx_queue; + + rxdp = &rxq->desc_ring[rxq->processing_idx]; + + pmc->addr = &rxdp->wb.status_err_ptype_len; + pmc->fn = sxe2_monitor_callback; + pmc->size = sizeof(uint16_t); + + return 0; +} diff --git a/drivers/net/sxe2/sxe2_rx.h b/drivers/net/sxe2/sxe2_rx.h index 295d9005e0..c2582bc571 100644 --- a/drivers/net/sxe2/sxe2_rx.h +++ b/drivers/net/sxe2/sxe2_rx.h @@ -29,4 +29,6 @@ int32_t __rte_cold sxe2_rxqs_all_start(struct rte_eth_dev *dev); void __rte_cold sxe2_rxqs_all_stop(struct rte_eth_dev *dev); +int32_t sxe2_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc); + #endif /* SXE2_RX_H */ -- 2.52.0