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 AE509CD5BD1 for ; Mon, 1 Jun 2026 08:51:06 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id AC21640698; Mon, 1 Jun 2026 10:50:10 +0200 (CEST) Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) by mails.dpdk.org (Postfix) with ESMTP id 9FCA64060C for ; Mon, 1 Jun 2026 10:50:01 +0200 (CEST) Received: from localhost.localdomain (unknown [118.112.177.181]) by APP-03 (Coremail) with SMTP id rQCowABXcNezRx1qUzY4Ew--.22307S16; Mon, 01 Jun 2026 16:49:59 +0800 (CST) From: liujie5@linkdatatechnology.com To: stephen@networkplumber.org Cc: dev@dpdk.org, Jie Liu Subject: [PATCH v3 14/20] net/sxe2: implement get monitor address Date: Mon, 1 Jun 2026 16:49:44 +0800 Message-ID: <20260601084950.269887-15-liujie5@linkdatatechnology.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260601084950.269887-1-liujie5@linkdatatechnology.com> References: <20260601063007.230097-21-liujie5@linkdatatechnology.com> <20260601084950.269887-1-liujie5@linkdatatechnology.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: rQCowABXcNezRx1qUzY4Ew--.22307S16 X-Coremail-Antispam: 1UD129KBjvJXoWxXFW8AF1fWF1kZFW3Ww15urg_yoW5Xw4kpF 4kX34fZF1rJa17Ww1fGa1fuF1Y9a1xtFyjkrWI934fuF1kJF1UAFZ8tFyYy3WjyryUG3WS vFsrArsrGayrur7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBG14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr 1UM28EF7xvwVC2z280aVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv6xkF7I0E14v26r4UJVWx Jr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2I x0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8 JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lw4CEc2x0rVAKj4xxMx AIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_ Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUXVWUAwCIc40Y0x0EwI xGrwCI42IY6xIIjxv20xvE14v26r4j6ryUMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWx JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcV C2z280aVCY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUB89_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 215ae772b5..45e245740b 100644 --- a/drivers/net/sxe2/sxe2_ethdev.c +++ b/drivers/net/sxe2/sxe2_ethdev.c @@ -184,6 +184,8 @@ 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