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| author | Olof Johansson <olof@lixom.net> | 2007-08-22 09:13:11 -0500 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:50:58 -0700 |
| commit | 021fa22e01d3d0425d3d15df48f523b69a3a11c4 (patch) | |
| tree | 6526993ff713b963d5c95acc9775f49dd135ff41 /drivers/net/pasemi_mac.h | |
| parent | 02df6cfa09c2ccebe685bfd54a708e1f50b00a81 (diff) | |
| download | linux-021fa22e01d3d0425d3d15df48f523b69a3a11c4.tar.gz linux-021fa22e01d3d0425d3d15df48f523b69a3a11c4.tar.bz2 linux-021fa22e01d3d0425d3d15df48f523b69a3a11c4.zip | |
pasemi_mac: Fix TX ring wrap checking
The old logic didn't detect full (tx) ring cases properly, causing
overruns and general badness. Clean it up a bit and abstract out the
ring size checks, always making sure to leave 1 slot open.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/pasemi_mac.h')
| -rw-r--r-- | drivers/net/pasemi_mac.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/pasemi_mac.h b/drivers/net/pasemi_mac.h index fbbc17a31db7..c5b0adbc182e 100644 --- a/drivers/net/pasemi_mac.h +++ b/drivers/net/pasemi_mac.h @@ -31,7 +31,7 @@ struct pasemi_mac_txring { struct pas_dma_xct_descr *desc; dma_addr_t dma; unsigned int size; - unsigned int next_to_use; + unsigned int next_to_fill; unsigned int next_to_clean; struct pasemi_mac_buffer *desc_info; char irq_name[10]; /* "eth%d tx" */ |