diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2006-11-01 16:47:53 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-02 05:12:00 (GMT) |
| commit | a9ebadd640927ac6529d904b4131b17e8019d199 (patch) | |
| tree | 0e818b591ac79057a4155a6814bd2cc29a866807 /drivers | |
| parent | 996695de21b9b301ebb32379e2950fc2142df3a7 (diff) | |
| download | linux-a9ebadd640927ac6529d904b4131b17e8019d199.tar.xz | |
e1000: Remove unneeded and unwanted memsets
This memsetting was added in a paranoid rage debugging TX hangs, but
are no longer of importance. We can beef up the performance quite a
bit removing them. Make sure to fill in next_to_watch to allow this.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 44ba522..9d82bbb 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -1993,10 +1993,13 @@ 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); - memset(buffer_info, 0, sizeof(struct e1000_buffer)); + buffer_info->skb = NULL; + } + /* buffer_info must be completely set up in the transmit path */ } /** @@ -2661,6 +2664,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, context_desc->cmd_and_length = cpu_to_le32(cmd_length); buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; if (++i == tx_ring->count) i = 0; tx_ring->next_to_use = i; @@ -2695,6 +2699,7 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT); buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; if (unlikely(++i == tx_ring->count)) i = 0; tx_ring->next_to_use = i; @@ -2763,6 +2768,7 @@ e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, size, PCI_DMA_TODEVICE); buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; len -= size; offset += size; @@ -2802,6 +2808,7 @@ e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, size, PCI_DMA_TODEVICE); buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; len -= size; offset += size; @@ -3620,7 +3627,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter, cleaned = (i == eop); e1000_unmap_and_free_tx_resource(adapter, buffer_info); - memset(tx_desc, 0, sizeof(struct e1000_tx_desc)); + tx_desc->upper.data = 0; if (unlikely(++i == tx_ring->count)) i = 0; } |