lkml.org 
[lkml]   [2020]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.4 054/152] net: ena: rss: fix failure to get indirection table
    Date
    From: Sameeh Jubran <sameehj@amazon.com>

    [ Upstream commit 0c8923c0a64fb5d14bebb9a9065d2dc25ac5e600 ]

    On old hardware, getting / setting the hash function is not supported while
    gettting / setting the indirection table is.

    This commit enables us to still show the indirection table on older
    hardwares by setting the hash function and key to NULL.

    Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
    Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/amazon/ena/ena_ethtool.c | 14 ++++++++++++++
    1 file changed, 14 insertions(+)

    diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
    index 4472e41bd7825..52a3decff34a4 100644
    --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
    +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
    @@ -648,7 +648,21 @@ static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
    if (rc)
    return rc;

    + /* We call this function in order to check if the device
    + * supports getting/setting the hash function.
    + */
    rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key);
    +
    + if (rc) {
    + if (rc == -EOPNOTSUPP) {
    + key = NULL;
    + hfunc = NULL;
    + rc = 0;
    + }
    +
    + return rc;
    + }
    +
    if (rc)
    return rc;

    --
    2.20.1


    \
     
     \ /
      Last update: 2020-03-03 18:56    [W:4.041 / U:0.020 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site