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 4AAC5CD4F26 for ; Fri, 19 Jun 2026 08:10:39 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B02A840DD5; Fri, 19 Jun 2026 10:10:38 +0200 (CEST) Received: from cstnet.cn (smtp25.cstnet.cn [159.226.251.25]) by mails.dpdk.org (Postfix) with ESMTP id D162D4027F for ; Fri, 19 Jun 2026 10:10:35 +0200 (CEST) Received: from localhost.localdomain (unknown [118.112.177.181]) by APP-05 (Coremail) with SMTP id zQCowAAntQh5+TRqgLc2FA--.21069S2; Fri, 19 Jun 2026 16:10:34 +0800 (CST) From: liujie5@linkdatatechnology.com To: stephen@networkplumber.org Cc: dev@dpdk.org, Jie Liu Subject: [PATCH v4 16/23] net/sxe2: implement get monitor address Date: Fri, 19 Jun 2026 16:10:32 +0800 Message-ID: <20260619081032.1545488-1-liujie5@linkdatatechnology.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260618082723.571054-21-liujie5@linkdatatechnology.com> References: <20260618082723.571054-21-liujie5@linkdatatechnology.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: zQCowAAntQh5+TRqgLc2FA--.21069S2 X-Coremail-Antispam: 1UD129KBjvJXoWxXFW8AF1fWF1kZFW3Ww15urg_yoW5Xw4kpF 4kX34fZF1rJa17Ww1fGa1fuF1YgF4xtFyjkryIk34fuF1kJF17AFZ8tFyYy3WYkryUGF1S vFsrArsrGay5ur7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkv14x267AKxVWUJVW8JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26r4j6ryUM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26F4j 6r4UJwA2z4x0Y4vEx4A2jsIE14v26r4j6F4UM28EF7xvwVC2z280aVCY1x0267AKxVW8JV W8Jr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jw0_WrylYx0Ex4A2jsIE14v26r4j6F4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lw4CEc2x0rVAKj4xx MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr 0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUXVWUAwCIc40Y0x0E wIxGrwCI42IY6xIIjxv20xvE14v26r4j6ryUMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWxJV W8Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF 0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JU4v38UUUUU= 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 98f79c180c..493b720f0b 100644 --- a/drivers/net/sxe2/sxe2_ethdev.c +++ b/drivers/net/sxe2/sxe2_ethdev.c @@ -185,6 +185,8 @@ 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 2495ab3ab7..820d4f0620 100644 --- a/drivers/net/sxe2/sxe2_rx.c +++ b/drivers/net/sxe2/sxe2_rx.c @@ -534,3 +534,24 @@ 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