diff options
| author |   Sameeh Jubran <sameehj@amazon.com> | 2020-05-03 09:52:14 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-05-03 15:59:29 -0700 |
| commit | 0af3c4e2eab8aa5a904287534e442add36023273 (patch) | |
| tree | 89114d8d15ad2b8017251b046549df8217ceeecf /drivers/net/ethernet/amazon/ena/ena_com.c | |
| parent | net: ena: change default RSS hash function to Toeplitz (diff) | |
| download | linux-dev-0af3c4e2eab8aa5a904287534e442add36023273.tar.xz linux-dev-0af3c4e2eab8aa5a904287534e442add36023273.zip | |
net: ena: changes to RSS hash key allocation
This commit contains 2 cosmetic changes:
1. Use ena_com_check_supported_feature_id() in
ena_com_hash_key_fill_default_key() instead of rewriting
its implementation. This also saves us a superfluous admin
command by using the cached value.
2. Change if conditions in ena_com_rss_init() to be clearer.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amazon/ena/ena_com.c')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_com.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index d428d0606166..b51bf62af11b 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -1067,16 +1067,10 @@ static void ena_com_hash_key_fill_default_key(struct ena_com_dev *ena_dev) static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev) { struct ena_rss *rss = &ena_dev->rss; - struct ena_admin_get_feat_resp get_resp; - int rc; - rc = ena_com_get_feature_ex(ena_dev, &get_resp, - ENA_ADMIN_RSS_HASH_FUNCTION, - ena_dev->rss.hash_key_dma_addr, - sizeof(ena_dev->rss.hash_key), 0); - if (unlikely(rc)) { + if (!ena_com_check_supported_feature_id(ena_dev, + ENA_ADMIN_RSS_HASH_FUNCTION)) return -EOPNOTSUPP; - } rss->hash_key = dma_alloc_coherent(ena_dev->dmadev, sizeof(*rss->hash_key), @@ -2650,10 +2644,10 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 indr_tbl_log_size) * ignore this error and have indirection table support only. */ rc = ena_com_hash_key_allocate(ena_dev); - if (unlikely(rc) && rc != -EOPNOTSUPP) - goto err_hash_key; - else if (rc != -EOPNOTSUPP) + if (likely(!rc)) ena_com_hash_key_fill_default_key(ena_dev); + else if (rc != -EOPNOTSUPP) + goto err_hash_key; rc = ena_com_hash_ctrl_init(ena_dev); if (unlikely(rc)) |