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| author |   Arthur Kiyanovski <akiyano@amazon.com> | 2022-01-07 20:23:38 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-01-07 19:25:50 -0800 |
| commit | a2d5d6a70fa5211e071747876fa6a7621c7257fd (patch) | |
| tree | dee20083b326028cfe50f95b9a85a93b70ff52e8 /drivers/net/ethernet/amazon/ena/ena_com.c | |
| parent | net: ena: Change return value of ena_calc_io_queue_size() to void (diff) | |
| download | linux-dev-a2d5d6a70fa5211e071747876fa6a7621c7257fd.tar.xz linux-dev-a2d5d6a70fa5211e071747876fa6a7621c7257fd.zip | |
net: ena: Add capabilities field with support for ENI stats capability
This bitmask field indicates what capabilities are supported by the
device.
The capabilities field differs from the 'supported_features' field which
indicates what sub-commands for the set/get feature commands are
supported. The sub-commands are specified in the 'feature_id' field of
the 'ena_admin_set_feat_cmd' struct in the following way:
struct ena_admin_set_feat_cmd cmd;
cmd.aq_common_descriptor.opcode = ENA_ADMIN_SET_FEATURE;
cmd.feat_common.feature_
The 'capabilities' field, on the other hand, specifies different
capabilities of the device. For example, whether the device supports
querying of ENI stats.
Also add an enumerator which contains all the capabilities. The
first added capability macro is for ENI stats feature.
Capabilities are queried along with the other device attributes (in
ena_com_get_dev_attr_feat()) during device initialization and are stored
in the ena_com_dev struct. They can be later queried using the
ena_com_get_cap() helper function.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/amazon/ena/ena_com.c')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_com.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index ab413fc1f68e..8c8b4c88c7de 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -1971,6 +1971,7 @@ int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev, sizeof(get_resp.u.dev_attr)); ena_dev->supported_features = get_resp.u.dev_attr.supported_features; + ena_dev->capabilities = get_resp.u.dev_attr.capabilities; if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) { rc = ena_com_get_feature(ena_dev, &get_resp, @@ -2223,6 +2224,13 @@ int ena_com_get_eni_stats(struct ena_com_dev *ena_dev, struct ena_com_stats_ctx ctx; int ret; + if (!ena_com_get_cap(ena_dev, ENA_ADMIN_ENI_STATS)) { + netdev_err(ena_dev->net_device, + "Capability %d isn't supported\n", + ENA_ADMIN_ENI_STATS); + return -EOPNOTSUPP; + } + memset(&ctx, 0x0, sizeof(ctx)); ret = ena_get_dev_stats(ena_dev, &ctx, ENA_ADMIN_GET_STATS_TYPE_ENI); if (likely(ret == 0)) |