netdev - [PATCH net-next 7/8] net: ena: disable admin msix while working in polling mode

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Message-ID: <1496958410-4220-9-git-send-email-netanel@amazon.com>
Date:   Fri, 9 Jun 2017 00:46:35 +0300
From:   <netanel@...zon.com>
To:     <davem@...emloft.net>, <netdev@...r.kernel.org>
CC:     Netanel Belgazal <netanel@...zon.com>, <dwmw@...zon.com>,
        <zorik@...zon.com>, <matua@...zon.com>, <saeedb@...zon.com>,
        <msw@...zon.com>, <aliguori@...zon.com>, <nafea@...zon.com>,
        <evgenys@...zon.com>
Subject: [PATCH net-next 7/8] net: ena: disable admin msix while working in polling mode

From: Netanel Belgazal <netanel@...zon.com>

Signed-off-by: Netanel Belgazal <netanel@...zon.com>
---
 drivers/net/ethernet/amazon/ena/ena_com.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index ea60b9e..f5b237e 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -61,6 +61,8 @@
 
 #define ENA_MMIO_READ_TIMEOUT 0xFFFFFFFF
 
+#define ENA_REGS_ADMIN_INTR_MASK 1
+
 /*****************************************************************************/
 /*****************************************************************************/
 /*****************************************************************************/
@@ -1454,6 +1456,12 @@ void ena_com_admin_destroy(struct ena_com_dev *ena_dev)
 
 void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling)
 {
+	u32 mask_value = 0;
+
+	if (polling)
+		mask_value = ENA_REGS_ADMIN_INTR_MASK;
+
+	writel(mask_value, ena_dev->reg_bar + ENA_REGS_INTR_MASK_OFF);
 	ena_dev->admin_queue.polling = polling;
 }
 
-- 
2.7.4