From: Ariel Elior <Ariel.Elior@cavium.com>
Date: Wed, 28 Nov 2018 18:16:07 +0200
Subject: qede: Register l2 queues with doorbell overflow recovery mechanism
Patch-mainline: v5.0-rc1
Git-commit: bd4db888ab848ac6f9a2a5f8e66bd4d5a99dce6f
References: bsc#1104393 FATE#325891 bsc#1104389 FATE#325890
All L2 queues funnel through this flow, so this would cover the
regular RSS queues, as well queues created for VFs, mqos queues,
xdp queues, etc.
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/qlogic/qede/qede_main.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -1774,6 +1774,10 @@ static int qede_drain_txq(struct qede_de
static int qede_stop_txq(struct qede_dev *edev,
struct qede_tx_queue *txq, int rss_id)
{
+ /* delete doorbell from doorbell recovery mechanism */
+ edev->ops->common->db_recovery_del(edev->cdev, txq->doorbell_addr,
+ &txq->tx_db);
+
return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
}
@@ -1910,6 +1914,11 @@ static int qede_start_txq(struct qede_de
DQ_XCM_ETH_TX_BD_PROD_CMD);
txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
+ /* register doorbell with doorbell recovery mechanism */
+ rc = edev->ops->common->db_recovery_add(edev->cdev, txq->doorbell_addr,
+ &txq->tx_db, DB_REC_WIDTH_32B,
+ DB_REC_KERNEL);
+
return rc;
}