From: Sudarsana Kalluru <sudarsana.kall...@qlogic.com>
This adds basic link functionality to qede - driver still doesn't provide
users with an API to change any link property, but it does request qed to
initialize the link using default configuration, and registers a callback
that allows it to get link notifications.
This patch adds the ability of the driver to set the carrier as active and
to enable traffic as a result of async. link notifications.
Following this patch, driver should be capable of running traffic.
Signed-off-by: Sudarsana Kalluru <sudarsana.kall...@qlogic.com>
Signed-off-by: Yuval Mintz <yuval.mi...@qlogic.com>
Signed-off-by: Ariel Elior <ariel.el...@qlogic.com>
---
drivers/net/ethernet/qlogic/qede/qede_main.c | 47 ++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c
b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 0351204..890439c 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -87,6 +87,7 @@ static int qede_probe(struct pci_dev *pdev, const struct
pci_device_id *id);
static void qede_remove(struct pci_dev *pdev);
static int qede_alloc_rx_buffer(struct qede_dev *edev,
struct qede_rx_queue *rxq);
+static void qede_link_update(void *dev, struct qed_link_output *link);
static struct pci_driver qede_pci_driver = {
.name = "qede",
@@ -95,6 +96,12 @@ static struct pci_driver qede_pci_driver = {
.remove = qede_remove,
};
+static struct qed_eth_cb_ops qede_ll_ops = {
+ {
+ .link_update = qede_link_update,
+ },
+};
+
static int qede_netdev_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
@@ -1304,6 +1311,8 @@ static int __qede_probe(struct pci_dev *pdev, u32
dp_module, u8 dp_level,
edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION);
+ edev->ops->register_ops(cdev, &qede_ll_ops, edev);
+
INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
mutex_init(&edev->qede_lock);
@@ -2099,6 +2108,7 @@ enum qede_unload_mode {
static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode)
{
+ struct qed_link_params link_params;
int rc;
DP_INFO(edev, "Starting qede unload\n");
@@ -2110,6 +2120,10 @@ static void qede_unload(struct qede_dev *edev, enum
qede_unload_mode mode)
netif_tx_disable(edev->ndev);
netif_carrier_off(edev->ndev);
+ /* Reset the link */
+ memset(&link_params, 0, sizeof(link_params));
+ link_params.link_up = false;
+ edev->ops->common->set_link(edev->cdev, &link_params);
rc = qede_stop_queues(edev);
if (rc) {
qede_sync_free_irqs(edev);
@@ -2140,6 +2154,8 @@ enum qede_load_mode {
static int qede_load(struct qede_dev *edev, enum qede_load_mode mode)
{
+ struct qed_link_params link_params;
+ struct qed_link_output link_output;
int rc;
DP_INFO(edev, "Starting qede load\n");
@@ -2183,6 +2199,17 @@ static int qede_load(struct qede_dev *edev, enum
qede_load_mode mode)
mutex_lock(&edev->qede_lock);
edev->state = QEDE_STATE_OPEN;
mutex_unlock(&edev->qede_lock);
+
+ /* Ask for link-up using current configuration */
+ memset(&link_params, 0, sizeof(link_params));
+ link_params.link_up = true;
+ edev->ops->common->set_link(edev->cdev, &link_params);
+
+ /* Query whether link is already-up */
+ memset(&link_output, 0, sizeof(link_output));
+ edev->ops->common->get_link(edev->cdev, &link_output);
+ qede_link_update(edev, &link_output);
+
DP_INFO(edev, "Ending successfully qede load\n");
return 0;
@@ -2223,6 +2250,26 @@ static int qede_close(struct net_device *ndev)
return 0;
}
+static void qede_link_update(void *dev, struct qed_link_output *link)
+{
+ struct qede_dev *edev = dev;
+
+ if (!netif_running(edev->ndev)) {
+ DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
+ return;
+ }
+
+ if (link->link_up) {
+ DP_NOTICE(edev, "Link is up\n");
+ netif_tx_start_all_queues(edev->ndev);
+ netif_carrier_on(edev->ndev);
+ } else {
+ DP_NOTICE(edev, "Link is down\n");
+ netif_tx_disable(edev->ndev);
+ netif_carrier_off(edev->ndev);
+ }
+}
+
static int qede_set_mac_addr(struct net_device *ndev, void *p)
{
struct qede_dev *edev = netdev_priv(ndev);
--
1.9.3
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