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| author | Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> | 2019-05-31 16:47:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-11 13:20:48 +0300 |
| commit | 831d6d077874610a22b2dd1cc4b91b7192d92c08 (patch) | |
| tree | a6d5933a63703d70dd1bde56ea051deffec524ca | |
| parent | 893e2a5f5cf646118e6f1d4a244e83c07beeea14 (diff) | |
| download | linux-831d6d077874610a22b2dd1cc4b91b7192d92c08.tar.xz | |
net: ethernet: ti: cpsw_ethtool: fix ethtool ring param set
[ Upstream commit 09faf5a7d7c0bcb07faba072f611937af9dd5788 ]
Fix ability to set RX descriptor number, the reason - initially
"tx_max_pending" was set incorrectly, but the issue appears after
adding sanity check, so fix is for "sanity" patch.
Fixes: 37e2d99b59c476 ("ethtool: Ensure new ring parameters are within bounds during SRINGPARAM")
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 832bce07c385..1afed85550c0 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2978,7 +2978,7 @@ static void cpsw_get_ringparam(struct net_device *ndev, struct cpsw_common *cpsw = priv->cpsw; /* not supported */ - ering->tx_max_pending = 0; + ering->tx_max_pending = descs_pool_size - CPSW_MAX_QUEUES; ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma); ering->rx_max_pending = descs_pool_size - CPSW_MAX_QUEUES; ering->rx_pending = cpdma_get_num_rx_descs(cpsw->dma); |