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i40e: Fix multiple link up messages

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This patch addresses an issue where multiple link up messages can be logged
resulting from aq link status timing when link properties are changed (fc,
speed, etc.); solved by using a single function to handle status printing
and adding a mechanism to track whether link state (up or down) has
actually changed.

Change-ID: Ied6ed6e49dc397c77d992adc0bc9ed3767152b9d
Signed-off-by: Matt Jared <matthew.a.jared@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Matt Jared 2015-08-27 11:42:39 -04:00 committed by Jeff Kirsher
parent 3487b6c30c
commit c156f856ad
3 changed files with 8 additions and 3 deletions
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2
drivers/net/ethernet/intel/i40e/i40e.h
View File

@ -537,6 +537,7 @@ struct i40e_vsi {
u16 idx; /* index in pf->vsi[] */
u16 veb_idx; /* index of VEB parent */
struct kobject *kobj; /* sysfs object */
bool current_isup; /* Sync 'link up' logging */
/* VSI specific handlers */
irqreturn_t (*irq_handler)(int irq, void *data);
@ -791,4 +792,5 @@ int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);
void i40e_print_link_message(struct i40e_vsi *vsi, bool isup);
#endif /* _I40E_H_ */

4
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
View File

@ -690,7 +690,7 @@ static int i40e_set_settings(struct net_device *netdev,
/* Tell the OS link is going down, the link will go
* back up when fw says it is ready asynchronously
*/
netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n");
i40e_print_link_message(vsi, false);
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);
}
@ -834,7 +834,7 @@ static int i40e_set_pauseparam(struct net_device *netdev,
/* Tell the OS link is going down, the link will go back up when fw
* says it is ready asynchronously
*/
netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n");
i40e_print_link_message(vsi, false);
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);

5
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -4837,11 +4837,14 @@ out:
* i40e_print_link_message - print link up or down
* @vsi: the VSI for which link needs a message
*/
static void i40e_print_link_message(struct i40e_vsi *vsi, bool isup)
void i40e_print_link_message(struct i40e_vsi *vsi, bool isup)
{
char speed[SPEED_SIZE] = "Unknown";
char fc[FC_SIZE] = "RX/TX";
if (vsi->current_isup == isup)
return;
vsi->current_isup = isup;
if (!isup) {
netdev_info(vsi->netdev, "NIC Link is Down\n");
return;