| Message ID | 1483906347-7567-1-git-send-email-ivan.khoronzhuk@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Date: Sun, 8 Jan 2017 22:12:27 +0200 > Allow to set number of descs close to possible values. In case of > minimum limit it's equal to number of channels to be able to set > at least one desc per channel. For maximum limit leave enough descs > number for tx channels. > > Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Applied, thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 458298d..09e0ed6 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2474,8 +2474,7 @@ static void cpsw_get_ringparam(struct net_device *ndev, /* not supported */ ering->tx_max_pending = 0; ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma); - /* Max 90% RX buffers */ - ering->rx_max_pending = (descs_pool_size * 9) / 10; + ering->rx_max_pending = descs_pool_size - CPSW_MAX_QUEUES; ering->rx_pending = cpdma_get_num_rx_descs(cpsw->dma); } @@ -2490,8 +2489,8 @@ static int cpsw_set_ringparam(struct net_device *ndev, /* ignore ering->tx_pending - only rx_pending adjustment is supported */ if (ering->rx_mini_pending || ering->rx_jumbo_pending || - ering->rx_pending < (descs_pool_size / 10) || - ering->rx_pending > ((descs_pool_size * 9) / 10)) + ering->rx_pending < CPSW_MAX_QUEUES || + ering->rx_pending > (descs_pool_size - CPSW_MAX_QUEUES)) return -EINVAL; if (ering->rx_pending == cpdma_get_num_rx_descs(cpsw->dma))
Allow to set number of descs close to possible values. In case of minimum limit it's equal to number of channels to be able to set at least one desc per channel. For maximum limit leave enough descs number for tx channels. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> --- Based on net-next/master drivers/net/ethernet/ti/cpsw.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)