From: Yuanhan Liu <yliu@fridaylinux.org>
To: Alejandro Lucero <alejandro.lucero@netronome.com>
Cc: dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/nfp: fix barrier location' has been queued to LTS release 17.11.2
Date: Sun, 22 Apr 2018 23:09:09 +0800 [thread overview]
Message-ID: <20180422150949.17523-19-yliu@fridaylinux.org> (raw)
In-Reply-To: <20180422150949.17523-1-yliu@fridaylinux.org>
Hi,
FYI, your patch has been queued to LTS release 17.11.2
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 04/29/18. So please
shout if anyone has objections.
Thanks.
--yliu
---
>From 55c8d97724452f28558438ef6dafb2ff7d0c152c Mon Sep 17 00:00:00 2001
From: Alejandro Lucero <alejandro.lucero@netronome.com>
Date: Thu, 22 Feb 2018 11:30:39 +0000
Subject: [PATCH] net/nfp: fix barrier location
[ upstream commit f598e1a2d0e29293b924119c1b3cdd4e16756e95 ]
The barrier needs to be after reading the DD bit. It has not been
a problem because the potential reads which can not happen before
reading the DD bit seem to be far enough, so the compiler is not
rescheduling them. However, a refactoring could make this problem
to arise.
Fixes: b812daadad0d ("nfp: add Rx and Tx")
Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
---
drivers/net/nfp/nfp_net.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index f633a8df5..3cc3da6ee 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -1995,16 +1995,16 @@ nfp_net_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
break;
}
+ rxds = &rxq->rxds[rxq->rd_p];
+ if ((rxds->rxd.meta_len_dd & PCIE_DESC_RX_DD) == 0)
+ break;
+
/*
* Memory barrier to ensure that we won't do other
* reads before the DD bit.
*/
rte_rmb();
- rxds = &rxq->rxds[rxq->rd_p];
- if ((rxds->rxd.meta_len_dd & PCIE_DESC_RX_DD) == 0)
- break;
-
/*
* We got a packet. Let's alloc a new mbuff for refilling the
* free descriptor ring as soon as possible
--
2.11.0
next prev parent reply other threads:[~2018-04-22 15:10 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-22 15:08 [dpdk-stable] patch 'eal/ppc: remove braces in SMP memory barrier macro' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'pci: remove duplicated symbol from map file' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'kni: fix build on RHEL 7.5' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'bus/vdev: fix finding device by name' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'app/procinfo: fix strncpy usage in args parsing' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'examples/exception_path: limit core count to 64' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'net/mlx5: fix flow creation with a single target queue' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'vhost: fix message payload union in setting ring address' " Yuanhan Liu
2018-04-22 15:08 ` [dpdk-stable] patch 'vhost: fix offset while mmaping log base " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'vhost: check cmsg not null' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'vhost: fix device cleanup at stop' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'vhost: fix realloc failure' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'vhost: fix ring index returned to master on stop' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/sfc: add missing defines for SAL annotation' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/bonding: fix primary slave port id storage type' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/octeontx: fix null pointer dereference' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/octeontx: fix uninitialized variable in port open' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/nfp: fix assigning port id in mbuf' " Yuanhan Liu
2018-04-22 15:09 ` Yuanhan Liu [this message]
2018-04-22 15:09 ` [dpdk-stable] patch 'net/nfp: fix link speed capabilities' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'doc: fix NFP NIC guide grammar' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/qede: fix alloc from socket 0' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/enic: allocate stats DMA buffer upfront during probe' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/i40e: fix link update no wait' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/vmxnet3: set the queue shared buffer at start' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/mrvl: fix crash when port is closed without starting' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/mrvl: fix Rx descriptors number' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/mlx5: fix existing file removal' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/bnxt: fix LRO disable' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/sfc: fix mbuf data alignment calculation' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'ethdev: fix queue start' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/sfc: fix type of opaque pointer in perf profile handler' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/i40e: fix intr callback unregister by adding retry' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/ixgbe: " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'ethdev: fix port accessing after release' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'vhost: avoid concurrency when logging dirty pages' " Yuanhan Liu
2018-04-23 9:03 ` Maxime Coquelin
2018-05-06 3:51 ` Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/vhost: fix crash when creating vdev dynamically' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'bus/fslmc: fix find device start condition' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'hash: fix missing spinlock unlock in add key' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'app/crypto-perf: fix IOVA translation' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'mem: do not use physical addresses in IOVA as VA mode' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'vfio: do not needlessly check for IOVA " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/dpaa: fix oob access' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'bus/dpaa: fix resource leak' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/dpaa2: fix xstats' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'ip_frag: fix double free of chained mbufs' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/octeontx: fix uninitialized speed variable' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/bonding: fix setting VLAN ID on slave ports' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/bonding: clear started state if start fails' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/szedata2: fix total stats' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/szedata2: fix format string for PCI address' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/enic: fix crash on MTU update with non-setup queues' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/ixgbe: fix busy wait during checking link status' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'doc: add timestamp offload to mlx5 features' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/bnxt: fix Rx drop setting' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/sfc/base: fix comparison always true warning' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/i40e: fix DDP profile DEL operation' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/vhost: fix invalid state' " Yuanhan Liu
2018-04-22 15:09 ` [dpdk-stable] patch 'net/bonding: free mempool used in mode 6' " Yuanhan Liu
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