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fm10k: Add netconsole support 

This change adds a function called "fm10k_netpoll" that's used to define
"ndo_poll_controller" in "fm10k_netdev_ops". This is required to enable
support for "netconsole" in fm10k.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com>
Acked-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jeff Kirsher 2015-04-10 19:14:31 -07:00
parent 4c16ceae8d
commit 8b4a98c7fa
3 changed files with 28 additions and 0 deletions
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3
drivers/net/ethernet/intel/fm10k/fm10k.h
View File

@ -457,6 +457,9 @@ void fm10k_down(struct fm10k_intfc *interface);
void fm10k_update_stats(struct fm10k_intfc *interface);
void fm10k_service_event_schedule(struct fm10k_intfc *interface);
void fm10k_update_rx_drop_en(struct fm10k_intfc *interface);
#ifdef CONFIG_NET_POLL_CONTROLLER
void fm10k_netpoll(struct net_device *netdev);
#endif
/* Netdev */
struct net_device *fm10k_alloc_netdev(void);

3
drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
View File

@ -1382,6 +1382,9 @@ static const struct net_device_ops fm10k_netdev_ops = {
.ndo_do_ioctl = fm10k_ioctl,
.ndo_dfwd_add_station = fm10k_dfwd_add_station,
.ndo_dfwd_del_station = fm10k_dfwd_del_station,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = fm10k_netpoll,
#endif
.ndo_features_check = fm10k_features_check,
};

22
drivers/net/ethernet/intel/fm10k/fm10k_pci.c
View File

@ -839,6 +839,28 @@ static irqreturn_t fm10k_msix_mbx_vf(int irq, void *data)
return IRQ_HANDLED;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
/**
* fm10k_netpoll - A Polling 'interrupt' handler
* @netdev: network interface device structure
*
* This is used by netconsole to send skbs without having to re-enable
* interrupts. It's not called while the normal interrupt routine is executing.
**/
void fm10k_netpoll(struct net_device *netdev)
{
struct fm10k_intfc *interface = netdev_priv(netdev);
int i;
/* if interface is down do nothing */
if (test_bit(__FM10K_DOWN, &interface->state))
return;
for (i = 0; i < interface->num_q_vectors; i++)
fm10k_msix_clean_rings(0, interface->q_vector[i]);
}
#endif
#define FM10K_ERR_MSG(type) case (type): error = #type; break
static void fm10k_print_fault(struct fm10k_intfc *interface, int type,
struct fm10k_fault *fault)