[parent not found: <bug-14242-11613@http.bugzilla.kernel.org/>]
* [Bug 14242] MPT SAS Fails on heavy operations
[not found] <bug-14242-11613@http.bugzilla.kernel.org/>
@ 2009-09-30 22:49 ` bugzilla-daemon
2009-09-30 23:29 ` bugzilla-daemon
1 sibling, 0 replies; 4+ messages in thread
From: bugzilla-daemon @ 2009-09-30 22:49 UTC (permalink / raw)
To: linux-scsi
http://bugzilla.kernel.org/show_bug.cgi?id=14242
Andrew Morton <akpm@linux-foundation.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |akpm@linux-foundation.org,
| |Eric.Moore@lsil.com
Component|Other |Other
AssignedTo|io_other@kernel-bugs.osdl.o |scsi_drivers-other@kernel-b
|rg |ugs.osdl.org
Product|IO/Storage |SCSI Drivers
--- Comment #1 from Andrew Morton <akpm@linux-foundation.org> 2009-09-30 22:49:58 ---
Reassigned to scsi, cc'ed Eric.
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^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug 14242] MPT SAS Fails on heavy operations
[not found] <bug-14242-11613@http.bugzilla.kernel.org/>
2009-09-30 22:49 ` bugzilla-daemon
@ 2009-09-30 23:29 ` bugzilla-daemon
1 sibling, 0 replies; 4+ messages in thread
From: bugzilla-daemon @ 2009-09-30 23:29 UTC (permalink / raw)
To: linux-scsi
http://bugzilla.kernel.org/show_bug.cgi?id=14242
--- Comment #2 from Denys Fedoryshchenko <nuclearcat@nuclearcat.com> 2009-09-30 23:29:24 ---
If i just copy fusion directory from previous kernel it works.
Most probably changes what trigger that is (just diff between kernels):
+static void
+mpt_add_sge_64bit(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
+{
+ SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
+ pSge->Address.Low = cpu_to_le32
+ (lower_32_bits((unsigned long)(dma_addr)));
+ pSge->Address.High = cpu_to_le32
+ (upper_32_bits((unsigned long)dma_addr));
+ pSge->FlagsLength = cpu_to_le32
+ ((flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING));
+}
- } else {
- SGESimple32_t *pSge = (SGESimple32_t *) pAddr;
- pSge->FlagsLength = cpu_to_le32(flagslength);
- pSge->Address = cpu_to_le32(dma_addr);
+/**
+ * mpt_add_sge_64bit_1078 - Place a simple 64 bit SGE at address pAddr
(1078 workaround).
+ * @pAddr: virtual address for SGE
+ * @flagslength: SGE flags and data transfer length
+ * @dma_addr: Physical address
+ *
+ * This routine places a MPT request frame back on the MPT adapter's
+ * FreeQ.
+ **/
+static void
+mpt_add_sge_64bit_1078(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
+{
+ SGESimple64_t *pSge = (SGESimple64_t *) pAddr;
+ u32 tmp;
+
+ pSge->Address.Low = cpu_to_le32
+ (lower_32_bits((unsigned long)(dma_addr)));
+ tmp = (u32)(upper_32_bits((unsigned long)dma_addr));
+
Following patch in upstream (but not in latest stable kernel) seems fixing my
issue. Probably it must be pushed to stable kernels?
commit c55b89fba9872ebcd5ac15cdfdad29ffb89329f0
[SCSI] mptsas : PAE Kernel more than 4 GB kernel panic
This patch is solving problem for PAE kernel DMA operation.
On PAE system dma_addr and unsigned long will have different
values.
Now dma_addr is not type casted using unsigned long.
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2012-06-13 17:14 ` [Bug 14242] MPT SAS Fails on heavy operations bugzilla-daemon
2012-06-13 17:14 ` bugzilla-daemon
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