diff options
| author | Robin Holt <holt@sgi.com> | 2004-10-19 20:36:01 +0000 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2004-10-19 20:36:01 +0000 |
| commit | 8a1f00a8c1452dadd51ed393137c23a2562af502 (patch) | |
| tree | d0bcae3383a035d243e95d544301aa4969bae8c6 /include | |
| parent | 4ead42c5173a9239abac310cbd3c77e4e03d7edf (diff) | |
[IA64-SGI] Correct BTE notification timeouts on SN2.
The SN2 Block Transfer Engine occassionally fails to send a notification
that it has completed a transfer to the kernel. This patch adds a
timeout mechanism which will detect the failure, reset the interface,
and then retry the transfer.
Signed-off-by: Robin Holt
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ia64/sn/bte.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-ia64/sn/bte.h b/include/asm-ia64/sn/bte.h index 1b643d1e0820..0ec27f99c181 100644 --- a/include/asm-ia64/sn/bte.h +++ b/include/asm-ia64/sn/bte.h @@ -55,7 +55,9 @@ /* macro to force the IBCT0 value valid */ #define BTE_VALID_MODE(x) ((x) & (IBCT_NOTIFY | IBCT_ZFIL_MODE)) -#define BTE_ACTIVE (IBLS_BUSY | IBLS_ERROR) +#define BTE_ACTIVE (IBLS_BUSY | IBLS_ERROR) +#define BTE_WORD_AVAILABLE (IBLS_BUSY << 1) +#define BTE_WORD_BUSY (~BTE_WORD_AVAILABLE) /* * Some macros to simplify reading. |