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authorRuss Anderson <rja@sgi.com>2007-08-21 17:45:12 -0400
committerTony Luck <tony.luck@intel.com>2007-12-19 14:19:19 -0500
commit64135fa97ce016058f95345425a9ebd04ee1bd2a (patch)
tree7b7cd85c07a608db9e01b39694d9af7a823bdfdb /include/asm-ia64
parent091062284c05d13b3393f4fcfcedc0f52cb948b4 (diff)
[IA64] Fix Altix BTE error return status
The Altix shub2 BTE error detail bits are in a different location than on shub1. The current code does not take this into account resulting in all shub2 BTE failures mapping to "unknown". This patch reads the error detail bits from the proper location, so the correct BTE failure reason is returned for both shub1 and shub2. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/sn/bte.h31
-rw-r--r--include/asm-ia64/sn/xp.h27
-rw-r--r--include/asm-ia64/sn/xpc.h8
3 files changed, 62 insertions, 4 deletions
diff --git a/include/asm-ia64/sn/bte.h b/include/asm-ia64/sn/bte.h
index 5335d87ca5f8..a0d214f43115 100644
--- a/include/asm-ia64/sn/bte.h
+++ b/include/asm-ia64/sn/bte.h
@@ -3,7 +3,7 @@
3 * License. See the file "COPYING" in the main directory of this archive 3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details. 4 * for more details.
5 * 5 *
6 * Copyright (c) 2000-2006 Silicon Graphics, Inc. All Rights Reserved. 6 * Copyright (c) 2000-2007 Silicon Graphics, Inc. All Rights Reserved.
7 */ 7 */
8 8
9 9
@@ -150,6 +150,35 @@ typedef enum {
150 BTEFAIL_NOTAVAIL, /* BTE not available */ 150 BTEFAIL_NOTAVAIL, /* BTE not available */
151} bte_result_t; 151} bte_result_t;
152 152
153#define BTEFAIL_SH2_RESP_SHORT 0x1 /* bit 000001 */
154#define BTEFAIL_SH2_RESP_LONG 0x2 /* bit 000010 */
155#define BTEFAIL_SH2_RESP_DSP 0x4 /* bit 000100 */
156#define BTEFAIL_SH2_RESP_ACCESS 0x8 /* bit 001000 */
157#define BTEFAIL_SH2_CRB_TO 0x10 /* bit 010000 */
158#define BTEFAIL_SH2_NACK_LIMIT 0x20 /* bit 100000 */
159#define BTEFAIL_SH2_ALL 0x3F /* bit 111111 */
160
161#define BTE_ERR_BITS 0x3FUL
162#define BTE_ERR_SHIFT 36
163#define BTE_ERR_MASK (BTE_ERR_BITS << BTE_ERR_SHIFT)
164
165#define BTE_ERROR_RETRY(value) \
166 (is_shub2() ? (value != BTEFAIL_SH2_CRB_TO) \
167 : (value != BTEFAIL_TOUT))
168
169/*
170 * On shub1 BTE_ERR_MASK will always be false, so no need for is_shub2()
171 */
172#define BTE_SHUB2_ERROR(_status) \
173 ((_status & BTE_ERR_MASK) \
174 ? (((_status >> BTE_ERR_SHIFT) & BTE_ERR_BITS) | IBLS_ERROR) \
175 : _status)
176
177#define BTE_GET_ERROR_STATUS(_status) \
178 (BTE_SHUB2_ERROR(_status) & ~IBLS_ERROR)
179
180#define BTE_VALID_SH2_ERROR(value) \
181 ((value >= BTEFAIL_SH2_RESP_SHORT) && (value <= BTEFAIL_SH2_ALL))
153 182
154/* 183/*
155 * Structure defining a bte. An instance of this 184 * Structure defining a bte. An instance of this
diff --git a/include/asm-ia64/sn/xp.h b/include/asm-ia64/sn/xp.h
index 6f807e0193b7..f7711b308e48 100644
--- a/include/asm-ia64/sn/xp.h
+++ b/include/asm-ia64/sn/xp.h
@@ -86,7 +86,7 @@ xp_bte_copy(u64 src, u64 vdst, u64 len, u64 mode, void *notification)
86 BUG_ON(REGION_NUMBER(vdst) != RGN_KERNEL); 86 BUG_ON(REGION_NUMBER(vdst) != RGN_KERNEL);
87 87
88 ret = bte_copy(src, pdst, len, mode, notification); 88 ret = bte_copy(src, pdst, len, mode, notification);
89 if (ret != BTE_SUCCESS) { 89 if ((ret != BTE_SUCCESS) && BTE_ERROR_RETRY(ret)) {
90 if (!in_interrupt()) { 90 if (!in_interrupt()) {
91 cond_resched(); 91 cond_resched();
92 } 92 }
@@ -244,7 +244,30 @@ enum xpc_retval {
244 244
245 xpcDisconnected, /* 51: channel disconnected (closed) */ 245 xpcDisconnected, /* 51: channel disconnected (closed) */
246 246
247 xpcUnknownReason /* 52: unknown reason -- must be last in list */ 247 xpcBteSh2Start, /* 52: BTE CRB timeout */
248
249 /* 53: 0x1 BTE Error Response Short */
250 xpcBteSh2RspShort = xpcBteSh2Start + BTEFAIL_SH2_RESP_SHORT,
251
252 /* 54: 0x2 BTE Error Response Long */
253 xpcBteSh2RspLong = xpcBteSh2Start + BTEFAIL_SH2_RESP_LONG,
254
255 /* 56: 0x4 BTE Error Response DSB */
256 xpcBteSh2RspDSB = xpcBteSh2Start + BTEFAIL_SH2_RESP_DSP,
257
258 /* 60: 0x8 BTE Error Response Access */
259 xpcBteSh2RspAccess = xpcBteSh2Start + BTEFAIL_SH2_RESP_ACCESS,
260
261 /* 68: 0x10 BTE Error CRB timeout */
262 xpcBteSh2CRBTO = xpcBteSh2Start + BTEFAIL_SH2_CRB_TO,
263
264 /* 84: 0x20 BTE Error NACK limit */
265 xpcBteSh2NACKLimit = xpcBteSh2Start + BTEFAIL_SH2_NACK_LIMIT,
266
267 /* 115: BTE end */
268 xpcBteSh2End = xpcBteSh2Start + BTEFAIL_SH2_ALL,
269
270 xpcUnknownReason /* 116: unknown reason -- must be last in list */
248}; 271};
249 272
250 273
diff --git a/include/asm-ia64/sn/xpc.h b/include/asm-ia64/sn/xpc.h
index e52b8508083b..8e5d7de9c632 100644
--- a/include/asm-ia64/sn/xpc.h
+++ b/include/asm-ia64/sn/xpc.h
@@ -3,7 +3,7 @@
3 * License. See the file "COPYING" in the main directory of this archive 3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details. 4 * for more details.
5 * 5 *
6 * Copyright (c) 2004-2006 Silicon Graphics, Inc. All Rights Reserved. 6 * Copyright (c) 2004-2007 Silicon Graphics, Inc. All Rights Reserved.
7 */ 7 */
8 8
9 9
@@ -1211,6 +1211,12 @@ xpc_IPI_init(int index)
1211static inline enum xpc_retval 1211static inline enum xpc_retval
1212xpc_map_bte_errors(bte_result_t error) 1212xpc_map_bte_errors(bte_result_t error)
1213{ 1213{
1214 if (is_shub2()) {
1215 if (BTE_VALID_SH2_ERROR(error))
1216 return xpcBteSh2Start + error;
1217 else
1218 return xpcBteUnmappedError;
1219 }
1214 switch (error) { 1220 switch (error) {
1215 case BTE_SUCCESS: return xpcSuccess; 1221 case BTE_SUCCESS: return xpcSuccess;
1216 case BTEFAIL_DIR: return xpcBteDirectoryError; 1222 case BTEFAIL_DIR: return xpcBteDirectoryError;