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authorBen Hutchings <bhutchings@solarflare.com>2009-11-25 16:11:35 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-26 15:59:36 -0800
commit55edc6e6ff728681ebc10d418222740705376664 (patch)
tree66136e674adde15b9668f13d4e0486482b7f1851 /drivers/net/sfc/falcon.h
parent1dfc5ceacd00365a9089e98643f4b26253d5a6aa (diff)
sfc: Split MAC stats DMA initiation and completion
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>
Diffstat (limited to 'drivers/net/sfc/falcon.h')
-rw-r--r--drivers/net/sfc/falcon.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index b331889ca46..61fab0a00cc 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -75,10 +75,18 @@ struct falcon_board {
* struct falcon_nic_data - Falcon NIC state
* @pci_dev2: Secondary function of Falcon A
* @board: Board state and functions
+ * @stats_disable_count: Nest count for disabling statistics fetches
+ * @stats_pending: Is there a pending DMA of MAC statistics.
+ * @stats_timer: A timer for regularly fetching MAC statistics.
+ * @stats_dma_done: Pointer to the flag which indicates DMA completion.
*/
struct falcon_nic_data {
struct pci_dev *pci_dev2;
struct falcon_board board;
+ unsigned int stats_disable_count;
+ bool stats_pending;
+ struct timer_list stats_timer;
+ u32 *stats_dma_done;
};
static inline struct falcon_board *falcon_board(struct efx_nic *efx)
@@ -128,8 +136,6 @@ extern void falcon_remove_port(struct efx_nic *efx);
/* MAC/PHY */
extern int falcon_switch_mac(struct efx_nic *efx);
extern bool falcon_xaui_link_ok(struct efx_nic *efx);
-extern int falcon_dma_stats(struct efx_nic *efx,
- unsigned int done_offset);
extern void falcon_drain_tx_fifo(struct efx_nic *efx);
extern void falcon_deconfigure_mac_wrapper(struct efx_nic *efx);
extern void falcon_reconfigure_mac_wrapper(struct efx_nic *efx);
@@ -154,6 +160,8 @@ extern int falcon_flush_queues(struct efx_nic *efx);
extern int falcon_reset_hw(struct efx_nic *efx, enum reset_type method);
extern void falcon_remove_nic(struct efx_nic *efx);
extern void falcon_update_nic_stats(struct efx_nic *efx);
+extern void falcon_start_nic_stats(struct efx_nic *efx);
+extern void falcon_stop_nic_stats(struct efx_nic *efx);
extern void falcon_set_multicast_hash(struct efx_nic *efx);
extern int falcon_reset_xaui(struct efx_nic *efx);