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    Subject[PATCH 4.19 15/38] net: dec: de2104x: Increase receive ring size for Tulip
    Date
    From: Lucy Yan <lucyyan@google.com>

    [ Upstream commit ee460417d254d941dfea5fb7cff841f589643992 ]

    Increase Rx ring size to address issue where hardware is reaching
    the receive work limit.

    Before:

    [ 102.223342] de2104x 0000:17:00.0 eth0: rx work limit reached
    [ 102.245695] de2104x 0000:17:00.0 eth0: rx work limit reached
    [ 102.251387] de2104x 0000:17:00.0 eth0: rx work limit reached
    [ 102.267444] de2104x 0000:17:00.0 eth0: rx work limit reached

    Signed-off-by: Lucy Yan <lucyyan@google.com>
    Reviewed-by: Moritz Fischer <mdf@kernel.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/dec/tulip/de2104x.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
    index 13430f75496cc..b312cd9bce169 100644
    --- a/drivers/net/ethernet/dec/tulip/de2104x.c
    +++ b/drivers/net/ethernet/dec/tulip/de2104x.c
    @@ -91,7 +91,7 @@ MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copi
    #define DSL CONFIG_DE2104X_DSL
    #endif

    -#define DE_RX_RING_SIZE 64
    +#define DE_RX_RING_SIZE 128
    #define DE_TX_RING_SIZE 64
    #define DE_RING_BYTES \
    ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \
    --
    2.25.1


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