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sfc: add extra RX drop counters for nodesc_trunc and noskb_drop

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Added a counter rx_noskb_drop for failure to allocate an skb.
Summed the per-channel rx_nodesc_trunc counters earlier so that they can
 be included in rx_dropped.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Cree
2014-07-15 11:58:12 +01:00
committed by David S. Miller
parent d762d03849
commit e4d112e4f9
9 changed files with 56 additions and 10 deletions
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2
drivers/net/ethernet/sfc/net_driver.h
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@@ -777,6 +777,7 @@ struct vfdi_status;
* interrupt has occurred.
* @stats_lock: Statistics update lock. Must be held when calling
* efx_nic_type::{update,start,stop}_stats.
* @n_rx_noskb_drops: Count of RX packets dropped due to failure to allocate an skb
*
* This is stored in the private area of the &struct net_device.
*/
@@ -930,6 +931,7 @@ struct efx_nic {
spinlock_t biu_lock;
int last_irq_cpu;
spinlock_t stats_lock;
atomic_t n_rx_noskb_drops;
};
static inline int efx_dev_registered(struct efx_nic *efx)