[dpdk-stable] patch 'mempool/octeontx: fix improper memory barrier' has been queued to LTS release 17.11.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 17.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 01/26/18. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From d925af2c087da01457f861890d06a5c288901a13 Mon Sep 17 00:00:00 2001
From: Pavan Nikhilesh <pbhagavatula at caviumnetworks.com>
Date: Mon, 8 Jan 2018 10:10:43 +0530
Subject: [PATCH] mempool/octeontx: fix improper memory barrier

[ upstream commit b6f26c9db26482d0e8c004b138aa72bdf5f6c975 ]

Use smp barrier instead of IO barrier when sending mbox request as the
write has to be reflected between cores not IO devices.

Fixes: 6da9d24574db ("event/octeontx: add mailbox support")

Signed-off-by: Pavan Nikhilesh <pbhagavatula at caviumnetworks.com>
Acked-by: Santosh Shukla <santosh.shukla at caviumnetworks.com>
---
 drivers/mempool/octeontx/octeontx_mbox.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mempool/octeontx/octeontx_mbox.c b/drivers/mempool/octeontx/octeontx_mbox.c
index 9525da1..6c69003 100644
--- a/drivers/mempool/octeontx/octeontx_mbox.c
+++ b/drivers/mempool/octeontx/octeontx_mbox.c
@@ -128,7 +128,7 @@ mbox_send_request(struct mbox *m, struct octeontx_mbox_hdr *hdr,
 
 	/* Write the msg header */
 	rte_write64(new_hdr.u64, ram_mbox_hdr);
-	rte_io_wmb();
+	rte_smp_wmb();
 	/* Notify PF about the new msg - write to MBOX reg generates PF IRQ */
 	rte_write64(0, m->reg);
 }
-- 
2.7.4