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net: ena: enable the interrupt_moderation in driver_supported_features 

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>
alistair/sunxi64-5.4-dsi
Arthur Kiyanovski 2019-09-16 14:31:29 +03:00 committed by David S. Miller
parent b3db86dc4b
commit bd21b0cc3a
2 changed files with 11 additions and 0 deletions
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8
drivers/net/ethernet/amazon/ena/ena_admin_defs.h
View File

@ -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_resp {
#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)

3
drivers/net/ethernet/amazon/ena/ena_netdev.c
View File

@ -2438,6 +2438,9 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev,
("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)