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sfc: Split MAC stats DMA initiation and completion

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From: Steve Hodgson <shodgson@solarflare.com>

Currently we initiate MAC stats DMA and busy-wait for completion when
stats are requested.  We can improve on this with a periodic timer to
initiate and poll for stats, and opportunistically poll when stats are
requested.

Since efx_nic::stats_disable_count and efx_stats_{disable,enable}()
are Falcon-specific, rename them and move them accordingly.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2009-11-25 16:11:35 +00:00
committed by David S. Miller
parent 1dfc5ceacd
commit 55edc6e6ff
9 changed files with 140 additions and 89 deletions
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2
drivers/net/sfc/net_driver.h
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@@ -717,7 +717,6 @@ union efx_multicast_hash {
* &struct net_device_stats.
* @stats_buffer: DMA buffer for statistics
* @stats_lock: Statistics update lock. Serialises statistics fetches
* @stats_disable_count: Nest count for disabling statistics fetches
* @mac_op: MAC interface
* @mac_address: Permanent MAC address
* @phy_type: PHY type
@@ -799,7 +798,6 @@ struct efx_nic {
struct efx_mac_stats mac_stats;
struct efx_buffer stats_buffer;
spinlock_t stats_lock;
unsigned int stats_disable_count;
struct efx_mac_operations *mac_op;
unsigned char mac_address[ETH_ALEN];