Commit f38ff2ee authored by Anjali Singhai Jain's avatar Anjali Singhai Jain Committed by David S. Miller

i40e: Change some init flow for the client

This change makes a common flow for Client instance open during init
and reset path. The Client subtask can handle both the cases instead of
making a separate notify_client_of_open call.
Also it may fix a bug during reset where the service task was leaking
some memory and causing issues.

Change-Id: I7232a32fd52b82e863abb54266fa83122f80a0cd
Signed-off-by: default avatarAnjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c3e70edd
......@@ -199,6 +199,7 @@ void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi)
void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi)
{
struct i40e_client_instance *cdev;
int ret = 0;
if (!vsi)
return;
......@@ -211,7 +212,14 @@ void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi)
"Cannot locate client instance open routine\n");
continue;
}
cdev->client->ops->open(&cdev->lan_info, cdev->client);
if (!(test_bit(__I40E_CLIENT_INSTANCE_OPENED,
&cdev->state))) {
ret = cdev->client->ops->open(&cdev->lan_info,
cdev->client);
if (!ret)
set_bit(__I40E_CLIENT_INSTANCE_OPENED,
&cdev->state);
}
}
}
mutex_unlock(&i40e_client_instance_mutex);
......@@ -407,12 +415,14 @@ struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf,
* i40e_client_add_instance - add a client instance struct to the instance list
* @pf: pointer to the board struct
* @client: pointer to a client struct in the client list.
* @existing: if there was already an existing instance
*
* Returns cdev ptr on success, NULL on failure
* Returns cdev ptr on success or if already exists, NULL on failure
**/
static
struct i40e_client_instance *i40e_client_add_instance(struct i40e_pf *pf,
struct i40e_client *client)
struct i40e_client *client,
bool *existing)
{
struct i40e_client_instance *cdev;
struct netdev_hw_addr *mac = NULL;
......@@ -421,7 +431,7 @@ struct i40e_client_instance *i40e_client_add_instance(struct i40e_pf *pf,
mutex_lock(&i40e_client_instance_mutex);
list_for_each_entry(cdev, &i40e_client_instances, list) {
if ((cdev->lan_info.pf == pf) && (cdev->client == client)) {
cdev = NULL;
*existing = true;
goto out;
}
}
......@@ -505,6 +515,7 @@ void i40e_client_subtask(struct i40e_pf *pf)
{
struct i40e_client_instance *cdev;
struct i40e_client *client;
bool existing = false;
int ret = 0;
if (!(pf->flags & I40E_FLAG_SERVICE_CLIENT_REQUESTED))
......@@ -528,18 +539,25 @@ void i40e_client_subtask(struct i40e_pf *pf)
/* check if L2 VSI is up, if not we are not ready */
if (test_bit(__I40E_DOWN, &pf->vsi[pf->lan_vsi]->state))
continue;
} else {
dev_warn(&pf->pdev->dev, "This client %s is being instanciated at probe\n",
client->name);
}
/* Add the client instance to the instance list */
cdev = i40e_client_add_instance(pf, client);
cdev = i40e_client_add_instance(pf, client, &existing);
if (!cdev)
continue;
/* Also up the ref_cnt of no. of instances of this client */
if (!existing) {
/* Also up the ref_cnt for no. of instances of this
* client.
*/
atomic_inc(&client->ref_cnt);
dev_info(&pf->pdev->dev, "Added instance of Client %s to PF%d bus=0x%02x func=0x%02x\n",
client->name, pf->hw.pf_id,
pf->hw.bus.device, pf->hw.bus.func);
}
/* Send an Open request to the client */
atomic_inc(&cdev->ref_cnt);
......@@ -588,7 +606,8 @@ int i40e_lan_add_device(struct i40e_pf *pf)
pf->hw.pf_id, pf->hw.bus.device, pf->hw.bus.func);
/* Since in some cases register may have happened before a device gets
* added, we can schedule a subtask to go initiate the clients.
* added, we can schedule a subtask to go initiate the clients if
* they can be launched at probe time.
*/
pf->flags |= I40E_FLAG_SERVICE_CLIENT_REQUESTED;
i40e_service_event_schedule(pf);
......
......@@ -5431,7 +5431,6 @@ int i40e_open(struct net_device *netdev)
wr32(&pf->hw, I40E_GLLAN_TSOMSK_L, be32_to_cpu(TCP_FLAG_CWR) >> 16);
udp_tunnel_get_rx_info(netdev);
i40e_notify_client_of_netdev_open(vsi);
return 0;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment