diff options
author | Len Brown <len.brown@intel.com> | 2009-04-05 10:14:15 +0400 |
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committer | Len Brown <len.brown@intel.com> | 2009-04-05 10:14:15 +0400 |
commit | 478c6a43fcbc6c11609f8cee7c7b57223907754f (patch) | |
tree | a7f7952099da60d33032aed6de9c0c56c9f8779e /drivers/net/tulip/tulip.h | |
parent | 8a3f257c704e02aee9869decd069a806b45be3f1 (diff) | |
parent | 6bb597507f9839b13498781e481f5458aea33620 (diff) | |
download | linux-478c6a43fcbc6c11609f8cee7c7b57223907754f.tar.xz |
Merge branch 'linus' into release
Conflicts:
arch/x86/kernel/cpu/cpufreq/longhaul.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/net/tulip/tulip.h')
-rw-r--r-- | drivers/net/tulip/tulip.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h index 19abbc36b60a..0afa2d4f9472 100644 --- a/drivers/net/tulip/tulip.h +++ b/drivers/net/tulip/tulip.h @@ -201,8 +201,38 @@ enum desc_status_bits { DescStartPkt = 0x20000000, DescEndRing = 0x02000000, DescUseLink = 0x01000000, - RxDescFatalErr = 0x008000, + + /* + * Error summary flag is logical or of 'CRC Error', 'Collision Seen', + * 'Frame Too Long', 'Runt' and 'Descriptor Error' flags generated + * within tulip chip. + */ + RxDescErrorSummary = 0x8000, + RxDescCRCError = 0x0002, + RxDescCollisionSeen = 0x0040, + + /* + * 'Frame Too Long' flag is set if packet length including CRC exceeds + * 1518. However, a full sized VLAN tagged frame is 1522 bytes + * including CRC. + * + * The tulip chip does not block oversized frames, and if this flag is + * set on a receive descriptor it does not indicate the frame has been + * truncated. The receive descriptor also includes the actual length. + * Therefore we can safety ignore this flag and check the length + * ourselves. + */ + RxDescFrameTooLong = 0x0080, + RxDescRunt = 0x0800, + RxDescDescErr = 0x4000, RxWholePkt = 0x00000300, + /* + * Top three bits of 14 bit frame length (status bits 27-29) should + * never be set as that would make frame over 2047 bytes. The Receive + * Watchdog flag (bit 4) may indicate the length is over 2048 and the + * length field is invalid. + */ + RxLengthOver2047 = 0x38000010 }; |