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e1000: Add performance enahancement by balancing TX and RX

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Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
This commit is contained in:
Jeff Kirsher 2006-03-02 18:20:43 -08:00 committed by root
parent 85b22eb632
commit 2a1af5d7df
1 changed files with 8 additions and 0 deletions
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8
drivers/net/e1000/e1000_main.c
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@ -3349,6 +3349,9 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
struct e1000_tx_desc *tx_desc, *eop_desc;
struct e1000_buffer *buffer_info;
unsigned int i, eop;
#ifdef CONFIG_E1000_NAPI
unsigned int count = 0;
#endif
boolean_t cleaned = FALSE;
i = tx_ring->next_to_clean;
@ -3370,6 +3373,11 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
#ifdef CONFIG_E1000_NAPI
#define E1000_TX_WEIGHT 64
/* weight of a sort for tx, to avoid endless transmit cleanup */
if (count++ == E1000_TX_WEIGHT) break;
#endif
}
tx_ring->next_to_clean = i;