From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 415E0462DC; Fri, 28 Feb 2025 02:09:38 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 10D6A40E34; Fri, 28 Feb 2025 02:09:17 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id 2479E40E19 for ; Fri, 28 Feb 2025 02:09:10 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1202) id 825FC210EAC5; Thu, 27 Feb 2025 17:09:09 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 825FC210EAC5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1740704949; bh=GFrQnmp53B65Y8xQFSie9TwH2eyIhBogNCzHPmtsPXA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JwX7ZorGaggM+EP3oHuAq4WgN6aas49P0DJdqKcAP37eNKD2D+RgdEOEpA6SJHaUD 0Vfq6webM/0Ul1uQRFQIMZcx7gGAEhvckqWLKKZxXzU9aCD6CDjkhE1zUIJI4Vq5aJ 5EV63xONssVxwrwcP20qg3jYTWdMj0MLJxrtInqY= From: longli@linuxonhyperv.com To: Stephen Hemminger , Wei Hu Cc: dev@dpdk.org, Long Li Subject: [PATCH 6/6] bus/vmbus: set event for channel without monitoring support Date: Thu, 27 Feb 2025 17:09:01 -0800 Message-Id: <1740704941-1631-7-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1740704941-1631-2-git-send-email-longli@linuxonhyperv.com> References: <1740704941-1631-2-git-send-email-longli@linuxonhyperv.com> 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: Long Li For vmbus channels without monitoring support, use kernel UIO interface to indicate packet through interrupt page and UIO file handle. Signed-off-by: Long Li --- drivers/bus/vmbus/vmbus_channel.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/drivers/bus/vmbus/vmbus_channel.c b/drivers/bus/vmbus/vmbus_channel.c index bccef168d3..1b54961cff 100644 --- a/drivers/bus/vmbus/vmbus_channel.c +++ b/drivers/bus/vmbus/vmbus_channel.c @@ -24,6 +24,19 @@ vmbus_sync_set_bit(volatile RTE_ATOMIC(uint32_t) *addr, uint32_t mask) rte_atomic_fetch_or_explicit(addr, mask, rte_memory_order_seq_cst); } +static inline void +vmbus_send_interrupt(const struct rte_vmbus_device *dev, uint32_t relid) +{ + uint32_t *int_addr; + uint32_t int_mask; + + int_addr = dev->int_page + relid / 32; + int_mask = 1u << (relid % 32); + vmbus_sync_set_bit(int_addr, int_mask); + + vmbus_uio_irq_control(dev, 1); +} + static inline void vmbus_set_monitor(const struct vmbus_channel *channel, uint32_t monitor_id) { @@ -39,10 +52,12 @@ vmbus_set_monitor(const struct vmbus_channel *channel, uint32_t monitor_id) } static void -vmbus_set_event(struct rte_vmbus_device *dev __rte_unused, - const struct vmbus_channel *chan) +vmbus_set_event(struct rte_vmbus_device *dev, const struct vmbus_channel *chan) { - vmbus_set_monitor(chan, chan->monitor_id); + if (chan->monitor_id != UINT8_MAX) + vmbus_set_monitor(chan, chan->monitor_id); + else + vmbus_send_interrupt(dev, chan->relid); } /* -- 2.34.1