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e1000e: commonize tx cleanup routine to match e1000 & igb 

This change updates the e1000e tx cleanup routine to more closely match
what already exists in igb and e1000.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-03-25 22:05:03 +00:00 committed by David S. Miller
parent 7249dee5bd
commit 12d04a3c12
1 changed files with 8 additions and 11 deletions
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19
drivers/net/e1000e/netdev.c
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@ -621,15 +621,16 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
struct e1000_buffer *buffer_info;
unsigned int i, eop;
unsigned int count = 0;
bool cleaned = 0;
bool cleaned;
unsigned int total_tx_bytes = 0, total_tx_packets = 0;
i = tx_ring->next_to_clean;
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
for (cleaned = 0; !cleaned; ) {
while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
(count < tx_ring->count)) {
for (cleaned = 0; !cleaned; count++) {
tx_desc = E1000_TX_DESC(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];
cleaned = (i == eop);
@ -655,10 +656,6 @@ static bool 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);
#define E1000_TX_WEIGHT 64
/* weight of a sort for tx, to avoid endless transmit cleanup */
if (count++ == E1000_TX_WEIGHT)
break;
}
tx_ring->next_to_clean = i;
@ -682,8 +679,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
/* Detect a transmit hang in hardware, this serializes the
* check with the clearing of time_stamp and movement of i */
adapter->detect_tx_hung = 0;
if (tx_ring->buffer_info[eop].time_stamp &&
time_after(jiffies, tx_ring->buffer_info[eop].time_stamp
if (tx_ring->buffer_info[i].time_stamp &&
time_after(jiffies, tx_ring->buffer_info[i].time_stamp
+ (adapter->tx_timeout_factor * HZ))
&& !(er32(STATUS) & E1000_STATUS_TXOFF)) {
e1000_print_tx_hang(adapter);
@ -694,7 +691,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
adapter->total_tx_packets += total_tx_packets;
adapter->net_stats.tx_bytes += total_tx_bytes;
adapter->net_stats.tx_packets += total_tx_packets;
return cleaned;
return (count < tx_ring->count);
}
/**
@ -2010,7 +2007,7 @@ static int e1000_clean(struct napi_struct *napi, int budget)
clean_rx:
adapter->clean_rx(adapter, &work_done, budget);
if (tx_cleaned)
if (!tx_cleaned)
work_done = budget;
/* If budget not fully consumed, exit the polling mode */