diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2009-03-20 09:25:39 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-21 22:06:55 -0400 |
| commit | bb145a9e28c32a37f35308bb32180b59e358a3a1 (patch) | |
| tree | fae2b23b306e31aa4264eee1a3085daf5158a853 /drivers/net/sfc/workarounds.h | |
| parent | e84665c9cb4db963393fafad6fefe5efdd7e4a09 (diff) | |
sfc: Pad packets to 33 bytes to prevent TX packet parser lockup
The packet parser used in the TX data path for locating checksum
fields can lose synchronisation with the TX queue manager when
handling packets that look like IPv4 but are too short (17-32 bytes).
Work around this by padding to 33 bytes.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/workarounds.h')
| -rw-r--r-- | drivers/net/sfc/workarounds.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h index 78de68f4a95b..c821c15445a0 100644 --- a/drivers/net/sfc/workarounds.h +++ b/drivers/net/sfc/workarounds.h | |||
| @@ -36,6 +36,8 @@ | |||
| 36 | #define EFX_WORKAROUND_11482 EFX_WORKAROUND_ALWAYS | 36 | #define EFX_WORKAROUND_11482 EFX_WORKAROUND_ALWAYS |
| 37 | /* Flush events can take a very long time to appear */ | 37 | /* Flush events can take a very long time to appear */ |
| 38 | #define EFX_WORKAROUND_11557 EFX_WORKAROUND_ALWAYS | 38 | #define EFX_WORKAROUND_11557 EFX_WORKAROUND_ALWAYS |
| 39 | /* Truncated IPv4 packets can confuse the TX packet parser */ | ||
| 40 | #define EFX_WORKAROUND_15592 EFX_WORKAROUND_ALWAYS | ||
| 39 | 41 | ||
| 40 | /* Spurious parity errors in TSORT buffers */ | 42 | /* Spurious parity errors in TSORT buffers */ |
| 41 | #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A | 43 | #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A |