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Commit 2a1af5d7 authored by Jeff Kirsher's avatar Jeff Kirsher Committed by root
Browse files

e1000: Add performance enahancement by balancing TX and RX 




Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: default avatarJohn Ronciak <john.ronciak@intel.com>
parent 85b22eb6

drivers/net/e1000/e1000_main.c

+8 −0
Original line number Diff line number Diff line
@@ -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;