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 DCD57463A6; Mon, 10 Mar 2025 22:43:40 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CF3C740653; Mon, 10 Mar 2025 22:43:14 +0100 (CET) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id 6CEA440657 for ; Mon, 10 Mar 2025 22:43:10 +0100 (CET) Received: by linux.microsoft.com (Postfix, from userid 1202) id D31E92038F53; Mon, 10 Mar 2025 14:43:09 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com D31E92038F53 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1741642989; bh=+wzKD+LCNRBk9TrzeUdtAa1EVxruYNrzXvxfKFvcr64=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TcAPd0NYQ7GbMEJQ6dYeU7iFY1Mt+DVr7MbJ7O7cqLCpXRzMMDyM/sHNodbg3rnXf QJYRSeglNalCaeKzBjmUZYSBKkbExvQaLZh+oJ3kfgV1QwEmb0oTMVDfBic5gY5QYU tXWBox2zKBa4ytPOhPx3I1bleD8zg9o3S19WWdt4= From: longli@linuxonhyperv.com To: Stephen Hemminger , Wei Hu Cc: dev@dpdk.org, Long Li Subject: [patch v2 6/6] bus/vmbus: set event for channel without monitoring support Date: Mon, 10 Mar 2025 14:42:57 -0700 Message-Id: <1741642977-14297-7-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1741642977-14297-1-git-send-email-longli@linuxonhyperv.com> References: <1741642977-14297-1-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 --- Change log: v2: fixed compilation warnings 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..81e8096190 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) +{ + RTE_ATOMIC(uint32_t) *int_addr; + uint32_t int_mask; + + int_addr = (RTE_ATOMIC(uint32_t)*) (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