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| author |   Wei Yang <weiyang@linux.vnet.ibm.com> | 2013-05-25 06:23:45 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-07-28 02:50:53 -0700 |
| commit | c96ddb0ba2b395760275766e97b57f8136112a35 (patch) | |
| tree | 9439b53ea8b1eadadc1efc2bf929be8987142891 /drivers/net/ethernet/intel/e1000e/hw.h | |
| parent | e1000e: Remove duplicate assignment of default rx/tx ring size (diff) | |
| download | linux-dev-c96ddb0ba2b395760275766e97b57f8136112a35.tar.xz linux-dev-c96ddb0ba2b395760275766e97b57f8136112a35.zip | |
e1000e: Use marco instead of digit for defining e1000_rx_desc_packet_split
In structure e1000_rx_desc_packet_split, the size of wb.upper.length is
defined by a digit. This may introduce some problem when the length is
changed.
This patch use the macro PS_PAGE_BUFFERS for the definition. And move the
definition to hw.h.
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/hw.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/hw.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/hw.h b/drivers/net/ethernet/intel/e1000e/hw.h index a6f903a9b773..cee565d8c63b 100644 --- a/drivers/net/ethernet/intel/e1000e/hw.h +++ b/drivers/net/ethernet/intel/e1000e/hw.h @@ -227,6 +227,9 @@ union e1000_rx_desc_extended { }; #define MAX_PS_BUFFERS 4 + +/* Number of packet split data buffers (not including the header buffer) */ +#define PS_PAGE_BUFFERS (MAX_PS_BUFFERS - 1) /* Receive Descriptor - Packet Split */ union e1000_rx_desc_packet_split { struct { @@ -251,7 +254,8 @@ union e1000_rx_desc_packet_split { } middle; struct { __le16 header_status; - __le16 length[3]; /* length of buffers 1-3 */ + /* length of buffers 1-3 */ + __le16 length[PS_PAGE_BUFFERS]; } upper; __le64 reserved; } wb; /* writeback */ |