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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2006-01-12 16:51:34 -0800
committerJeff Garzik <jgarzik@pobox.com>2006-01-17 07:51:03 -0500
commit8241e35e0c6ae7531fe270de34608edfdc2ea483 (patch)
tree9a87f5b49d41f3b37c6ae643fc5e3111ace5afde
parenta292ca6efbc1f259ddfb9c902367f2588e0e8b0f (diff)
[PATCH] e1000: Cleaned up code and removed hard coded numbers
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> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
-rw-r--r--drivers/net/e1000/e1000_main.c34
1 files changed, 21 insertions, 13 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index bef4d9d6f2d..e246b5e0f21 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1920,12 +1920,10 @@ e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
buffer_info->dma,
buffer_info->length,
PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
}
- if(buffer_info->skb) {
+ if (buffer_info->skb)
dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
+ memset(buffer_info, 0, sizeof(struct e1000_buffer));
}
/**
@@ -2044,8 +2042,6 @@ e1000_clean_rx_ring(struct e1000_adapter *adapter,
for(i = 0; i < rx_ring->count; i++) {
buffer_info = &rx_ring->buffer_info[i];
if(buffer_info->skb) {
- ps_page = &rx_ring->ps_page[i];
- ps_page_dma = &rx_ring->ps_page_dma[i];
pci_unmap_single(pdev,
buffer_info->dma,
buffer_info->length,
@@ -2543,11 +2539,11 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
if (++i == tx_ring->count) i = 0;
tx_ring->next_to_use = i;
- return 1;
+ return TRUE;
}
#endif
- return 0;
+ return FALSE;
}
static inline boolean_t
@@ -3383,7 +3379,19 @@ e1000_clean(struct net_device *poll_dev, int *budget)
BUG();
}
- tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[i]);
+ if (likely(adapter->num_tx_queues == 1)) {
+ /* e1000_clean is called per-cpu. This lock protects
+ * tx_ring[0] from being cleaned by multiple cpus
+ * simultaneously. A failure obtaining the lock means
+ * tx_ring[0] is currently being cleaned anyway. */
+ if (spin_trylock(&adapter->tx_queue_lock)) {
+ tx_cleaned = e1000_clean_tx_irq(adapter,
+ &adapter->tx_ring[0]);
+ spin_unlock(&adapter->tx_queue_lock);
+ }
+ } else
+ tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[i]);
+
adapter->clean_rx(adapter, &adapter->rx_ring[i],
&work_done, work_to_do);
@@ -3428,11 +3436,11 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
buffer_info = &tx_ring->buffer_info[i];
cleaned = (i == eop);
+#ifdef CONFIG_E1000_MQ
+ tx_ring->tx_stats.bytes += buffer_info->length;
+#endif
e1000_unmap_and_free_tx_resource(adapter, buffer_info);
-
- tx_desc->buffer_addr = 0;
- tx_desc->lower.data = 0;
- tx_desc->upper.data = 0;
+ memset(tx_desc, 0, sizeof(struct e1000_tx_desc));
if(unlikely(++i == tx_ring->count)) i = 0;
}