[dpdk-stable] patch 'net/ena: set IO ring size to valid value' has been queued to LTS release 18.11.9

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/03/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/f21655156b911dbbeb703cfd68e94fc14f712003

Thanks.

Kevin.

---
>From f21655156b911dbbeb703cfd68e94fc14f712003 Mon Sep 17 00:00:00 2001
From: Michal Krawczyk <mk at semihalf.com>
Date: Wed, 8 Apr 2020 10:29:08 +0200
Subject: [PATCH] net/ena: set IO ring size to valid value

[ upstream commit badc3a6aa133a886a61b9e3ad666e5675f7ec3d3 ]

IO rings were configured with the maximum allowed size for the Tx/Rx
rings. However, the application could decide to create smaller rings.

This patch is using value stored in the ring instead of the value from
the adapter which is indicating the maximum allowed value.

Fixes: df238f84c0a2 ("net/ena: recreate HW IO rings on start and stop")

Signed-off-by: Michal Krawczyk <mk at semihalf.com>
Reviewed-by: Igor Chauskin <igorch at amazon.com>
Reviewed-by: Guy Tzalik <gtzalik at amazon.com>
---
 drivers/net/ena/ena_ethdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 493111a2a0..8afd82bc87 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1044,5 +1044,4 @@ static int ena_create_io_queue(struct ena_ring *ring)
 		ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX;
 		ctx.mem_queue_type = ena_dev->tx_mem_queue_type;
-		ctx.queue_size = adapter->tx_ring_size;
 		for (i = 0; i < ring->ring_size; i++)
 			ring->empty_tx_reqs[i] = i;
@@ -1050,8 +1049,8 @@ static int ena_create_io_queue(struct ena_ring *ring)
 		ena_qid = ENA_IO_RXQ_IDX(ring->id);
 		ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_RX;
-		ctx.queue_size = adapter->rx_ring_size;
 		for (i = 0; i < ring->ring_size; i++)
 			ring->empty_rx_reqs[i] = i;
 	}
+	ctx.queue_size = ring->ring_size;
 	ctx.qid = ena_qid;
 	ctx.msix_vector = -1; /* interrupts not used */
-- 
2.21.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-05-28 17:13:02.665427793 +0100
+++ 0069-net-ena-set-IO-ring-size-to-valid-value.patch	2020-05-28 17:12:59.150555292 +0100
@@ -1 +1 @@
-From badc3a6aa133a886a61b9e3ad666e5675f7ec3d3 Mon Sep 17 00:00:00 2001
+From f21655156b911dbbeb703cfd68e94fc14f712003 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit badc3a6aa133a886a61b9e3ad666e5675f7ec3d3 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org
@@ -23 +24 @@
-index f1202d99f2..62e26a2a16 100644
+index 493111a2a0..8afd82bc87 100644
@@ -26 +27 @@
-@@ -1100,5 +1100,4 @@ static int ena_create_io_queue(struct ena_ring *ring)
+@@ -1044,5 +1044,4 @@ static int ena_create_io_queue(struct ena_ring *ring)
@@ -32 +33 @@
-@@ -1106,8 +1105,8 @@ static int ena_create_io_queue(struct ena_ring *ring)
+@@ -1050,8 +1049,8 @@ static int ena_create_io_queue(struct ena_ring *ring)