patches for DPDK stable branches
 help / color / Atom feed
From: Xiao Zhang <xiao.zhang@intel.com>
To: dev@dpdk.org
Cc: yong.liu@intel.com, Xiao Zhang <xiao.zhang@intel.com>, stable@dpdk.org
Subject: [dpdk-stable] examples/l3fwd-power: fix RX interrupt disable
Date: Wed, 11 Sep 2019 00:10:14 +0800
Message-ID: <1568131814-48424-1-git-send-email-xiao.zhang@intel.com> (raw)

Interrupt will not be received when disabling RX interrupt without
synchronization mechanism sometimes which leads to wake up issue,
add spinlock to fix it.

Fixes: b736d64787fc ("mples/l3fwd-power: disable Rx interrupt when
waking up")
Cc: stable@dpdk.org

Signed-off-by: Xiao Zhang <xiao.zhang@intel.com>
---
 examples/l3fwd-power/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index fd8d952..ff1ad37 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -880,7 +880,9 @@ sleep_until_rx_interrupt(int num)
 		port_id = ((uintptr_t)data) >> CHAR_BIT;
 		queue_id = ((uintptr_t)data) &
 			RTE_LEN2MASK(CHAR_BIT, uint8_t);
+		rte_spinlock_lock(&(locks[port_id]));
 		rte_eth_dev_rx_intr_disable(port_id, queue_id);
+		rte_spinlock_unlock(&(locks[port_id]));
 		RTE_LOG(INFO, L3FWD_POWER,
 			"lcore %u is waked up from rx interrupt on"
 			" port %d queue %d\n",
-- 
2.7.4


             reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-10 16:10 Xiao Zhang [this message]
2019-09-20  5:22 ` Liu, Yong
2019-10-23 14:32   ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon
2019-10-24  8:07     ` Hunt, David
2019-10-27 17:39       ` Thomas Monjalon

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1568131814-48424-1-git-send-email-xiao.zhang@intel.com \
    --to=xiao.zhang@intel.com \
    --cc=dev@dpdk.org \
    --cc=stable@dpdk.org \
    --cc=yong.liu@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

patches for DPDK stable branches

Archives are clonable:
	git clone --mirror http://inbox.dpdk.org/stable/0 stable/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 stable stable/ http://inbox.dpdk.org/stable \
		stable@dpdk.org
	public-inbox-index stable


Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.stable


AGPL code for this site: git clone https://public-inbox.org/ public-inbox