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authorIvan Khoronzhuk <ivan.khoronzhuk@linaro.org>2019-05-31 16:47:25 +0300
committerDavid S. Miller <davem@davemloft.net>2019-06-03 14:33:30 -0700
commit09faf5a7d7c0bcb07faba072f611937af9dd5788 (patch)
tree69426af427007a9318ed3bdfa7012a7c0b509594 /drivers/net/ethernet/ti
parentpacket: unconditionally free po->rollover (diff)
downloadlinux-dev-09faf5a7d7c0bcb07faba072f611937af9dd5788.tar.xz
linux-dev-09faf5a7d7c0bcb07faba072f611937af9dd5788.zip
net: ethernet: ti: cpsw_ethtool: fix ethtool ring param set
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>
Diffstat (limited to 'drivers/net/ethernet/ti')
-rw-r--r--drivers/net/ethernet/ti/cpsw_ethtool.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_ethtool.c b/drivers/net/ethernet/ti/cpsw_ethtool.c
index a4a7ec0d2531..6d1c9ebae7cc 100644
--- a/drivers/net/ethernet/ti/cpsw_ethtool.c
+++ b/drivers/net/ethernet/ti/cpsw_ethtool.c
@@ -643,7 +643,7 @@ 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 = cpsw->descs_pool_size - CPSW_MAX_QUEUES;
ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma);
ering->rx_max_pending = cpsw->descs_pool_size - CPSW_MAX_QUEUES;
ering->rx_pending = cpdma_get_num_rx_descs(cpsw->dma);