1 files changed, 63 insertions, 0 deletions
diff --git a/debian/patches/features/all/ena/net-ena-enable-the-interrupt_moderation-in-driver_su.patch b/debian/patches/features/all/ena/net-ena-enable-the-interrupt_moderation-in-driver_su.patch
new file mode 100644
index 000000000..3eb7e408c
--- /dev/null
+++ b/debian/patches/features/all/ena/net-ena-enable-the-interrupt_moderation-in-driver_su.patch
@@ -0,0 +1,63 @@
+From: Arthur Kiyanovski <akiyano@amazon.com>
+Date: Mon, 16 Sep 2019 14:31:29 +0300
+Subject: [PATCH] net: ena: enable the interrupt_moderation in
+ driver_supported_features
+Origin: https://git.kernel.org/linus/bd21b0cc3a63d1c658b230db084b0f392b78cab2
+Bug-Debian: https://bugs.debian.org/941291
+
+Add driver_supported_features to host_host info which is a new API used to
+communicate to the device which features are supported by the driver.
+
+Add the interrupt_moderation bit to host_info->driver_supported_features
+and enable it to signal the device that this driver supports interrupt
+moderation properly.
+
+Reserved bits are for features implemented in the future
+
+Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/amazon/ena/ena_admin_defs.h | 8 ++++++++
+ drivers/net/ethernet/amazon/ena/ena_netdev.c     | 3 +++
+ 2 files changed, 11 insertions(+)
+
+Index: linux/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+===================================================================
+--- linux.orig/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
++++ linux/drivers/net/ethernet/amazon/ena/ena_admin_defs.h
+@@ -808,6 +808,12 @@ struct ena_admin_host_info {
+ 	u16 num_cpus;
+ 
+ 	u16 reserved;
++
++	/* 1 :0 : reserved
++	 * 2 : interrupt_moderation
++	 * 31:3 : reserved
++	 */
++	u32 driver_supported_features;
+ };
+ 
+ struct ena_admin_rss_ind_table_entry {
+@@ -1110,6 +1116,8 @@ struct ena_admin_ena_mmio_req_read_less_
+ #define ENA_ADMIN_HOST_INFO_DEVICE_MASK                     GENMASK(7, 3)
+ #define ENA_ADMIN_HOST_INFO_BUS_SHIFT                       8
+ #define ENA_ADMIN_HOST_INFO_BUS_MASK                        GENMASK(15, 8)
++#define ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_SHIFT      2
++#define ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK       BIT(2)
+ 
+ /* aenq_common_desc */
+ #define ENA_ADMIN_AENQ_COMMON_DESC_PHASE_MASK               BIT(0)
+Index: linux/drivers/net/ethernet/amazon/ena/ena_netdev.c
+===================================================================
+--- linux.orig/drivers/net/ethernet/amazon/ena/ena_netdev.c
++++ linux/drivers/net/ethernet/amazon/ena/ena_netdev.c
+@@ -2440,6 +2440,9 @@ static void ena_config_host_info(struct
+ 		("K"[0] << ENA_ADMIN_HOST_INFO_MODULE_TYPE_SHIFT);
+ 	host_info->num_cpus = num_online_cpus();
+ 
++	host_info->driver_supported_features =
++		ENA_ADMIN_HOST_INFO_INTERRUPT_MODERATION_MASK;
++
+ 	rc = ena_com_set_host_attributes(ena_dev);
+ 	if (rc) {
+ 		if (rc == -EOPNOTSUPP)