[BNX2]: remove atomics in tx

Remove atomic operations in the fast tx path. Expensive atomic
operations were used to keep track of the number of available tx
descriptors. The new code uses the difference between the consumer
and producer index to determine the number of free tx descriptors.

As suggested by Jeff Garzik, the name of the inline function is
changed to all lower case.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index e1fb099acbf2..9ad3f5740cd8 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -3841,12 +3841,12 @@ struct bnx2 {
         struct status_block     *status_blk;
         u32                     last_status_idx;
 
-        atomic_t                tx_avail_bd;
         struct tx_bd            *tx_desc_ring;
         struct sw_bd            *tx_buf_ring;
         u32                     tx_prod_bseq;
         u16                     tx_prod;
         u16                     tx_cons;
+        int                     tx_ring_size;
 
 #ifdef BCM_VLAN 
         struct                  vlan_group *vlgrp;
@@ -3929,7 +3929,6 @@ struct bnx2 {
         u16                     fw_wr_seq;
         u16                     fw_drv_pulse_wr_seq;
 
-        int                     tx_ring_size;
         dma_addr_t              tx_desc_mapping;