[dpdk-dev] [PATCH 14/16] nfp: add support for hw port link configuration
Alejandro Lucero
alejandro.lucero at netronome.com
Thu Aug 24 18:20:20 CEST 2017
It is PMD task to configure the hardware port: link up when port started
and link down when port stopped. This is not required for VFs but it is
for PF ports.
A minor refactoring in PMD stop and close functions is done because the
Link down needs to happen just when device is stopped.
Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>
---
drivers/net/nfp/nfp_net.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index f9ce204..aa611e1 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -737,6 +737,10 @@ static void nfp_net_read_mac(struct nfp_net_hw *hw)
goto error;
}
+ if (hw->is_pf)
+ /* Configure the physical port up */
+ nfp_nsp_eth_config(hw->nspu_desc, hw->pf_port_idx, 1);
+
hw->ctrl = new_ctrl;
return 0;
@@ -765,9 +769,12 @@ static void nfp_net_read_mac(struct nfp_net_hw *hw)
nfp_net_stop(struct rte_eth_dev *dev)
{
int i;
+ struct nfp_net_hw *hw;
PMD_INIT_LOG(DEBUG, "Stop");
+ hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
nfp_net_disable_queues(dev);
/* Clear queues */
@@ -780,6 +787,10 @@ static void nfp_net_read_mac(struct nfp_net_hw *hw)
nfp_net_reset_rx_queue(
(struct nfp_net_rxq *)dev->data->rx_queues[i]);
}
+
+ if (hw->is_pf)
+ /* Configure the physical port down */
+ nfp_nsp_eth_config(hw->nspu_desc, hw->pf_port_idx, 0);
}
/* Reset and stop device. The device can not be restarted. */
@@ -788,6 +799,7 @@ static void nfp_net_read_mac(struct nfp_net_hw *hw)
{
struct nfp_net_hw *hw;
struct rte_pci_device *pci_dev;
+ int i;
PMD_INIT_LOG(DEBUG, "Close");
@@ -799,7 +811,18 @@ static void nfp_net_read_mac(struct nfp_net_hw *hw)
* threads/queues before calling the device close function.
*/
- nfp_net_stop(dev);
+ nfp_net_disable_queues(dev);
+
+ /* Clear queues */
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ nfp_net_reset_tx_queue(
+ (struct nfp_net_txq *)dev->data->tx_queues[i]);
+ }
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ nfp_net_reset_rx_queue(
+ (struct nfp_net_rxq *)dev->data->rx_queues[i]);
+ }
rte_intr_disable(&pci_dev->intr_handle);
nn_cfg_writeb(hw, NFP_NET_CFG_LSC, 0xff);
--
1.9.1
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