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authorbo yang <bo.yang@lsi.com>2007-11-09 04:44:56 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-11 19:22:44 -0500
commitf28cd7cf8f696eafe42d1632b5a306fbf784d3cd (patch)
tree3589b2cdaa22b55b59df13f9016dd964da961380 /Documentation
parentad84db2e2e1817bb8a29e7c9108eb66bf023d99f (diff)
[SCSI] megaraid_sas: Update version and changelog
Update version and changelog Signed-off-by: Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/scsi/ChangeLog.megaraid_sas159
1 files changed, 159 insertions, 0 deletions
diff --git a/Documentation/scsi/ChangeLog.megaraid_sas b/Documentation/scsi/ChangeLog.megaraid_sas
index 5eb927544990..91c81db0ba71 100644
--- a/Documentation/scsi/ChangeLog.megaraid_sas
+++ b/Documentation/scsi/ChangeLog.megaraid_sas
@@ -1,3 +1,162 @@
11 Release Date : Thur. Nov. 07 16:30:43 PST 2007 -
2 (emaild-id:megaraidlinux@lsi.com)
3 Sumant Patro
4 Bo Yang
5
62 Current Version : 00.00.03.16
73 Older Version : 00.00.03.15
8
91. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
10 a max of 60 seconds to respond to the INIT cmd.
11
121 Release Date : Fri. Sep. 07 16:30:43 PST 2007 -
13 (emaild-id:megaraidlinux@lsi.com)
14 Sumant Patro
15 Bo Yang
16
172 Current Version : 00.00.03.15
183 Older Version : 00.00.03.14
19
201. Added module parameter "poll_mode_io" to support for "polling"
21 (reduced interrupt operation). In this mode, IO completion
22 interrupts are delayed. At the end of initiating IOs, the
23 driver schedules for cmd completion if there are pending cmds
24 to be completed. A timer-based interrupt has also been added
25 to prevent IO completion processing from being delayed
26 indefinitely in the case that no new IOs are initiated.
27
281 Release Date : Fri. Sep. 07 16:30:43 PST 2007 -
29 (emaild-id:megaraidlinux@lsi.com)
30 Sumant Patro
31 Bo Yang
32
332 Current Version : 00.00.03.14
343 Older Version : 00.00.03.13
35
361. Setting the max_sectors_per_req based on max SGL supported by the
37 FW. Prior versions calculated this value from controller info
38 (max_sectors_1, max_sectors_2). For certain controllers/FW,
39 this was resulting in a value greater than max SGL supported
40 by the FW. Issue was first reported by users running LUKS+XFS
41 with megaraid_sas. Thanks to RB for providing the logs and
42 duplication steps that helped to get to the root cause of the
43 issue. 2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
44 10. FW may take a max of 60 seconds to respond to the INIT
45 cmd.
46
471 Release Date : Fri. June. 15 16:30:43 PST 2007 -
48 (emaild-id:megaraidlinux@lsi.com)
49 Sumant Patro
50 Bo Yang
51
522 Current Version : 00.00.03.13
533 Older Version : 00.00.03.12
54
551. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
56
57On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
58It looks like megaraid_sas at least needs this to throttle its commands
59> as they begin to time out. The code keeps the existing transport
60> template use of eh_timed_out (and allows the transport to override the
61> host if they both have this callback).
62>
63> James
64
651 Release Date : Sat May. 12 16:30:43 PST 2007 -
66 (emaild-id:megaraidlinux@lsi.com)
67 Sumant Patro
68 Bo Yang
69
702 Current Version : 00.00.03.12
713 Older Version : 00.00.03.11
72
731. When MegaSAS driver receives reset call from OS, driver waits in reset
74routine for max 3 minutes for all pending command completion. Now driver will
75call completion routine every 5 seconds from the reset routine instead of
76waiting for depending on cmd completion from isr path.
77
781 Release Date : Mon Apr. 30 10:25:52 PST 2007 -
79 (emaild-id:megaraidlinux@lsi.com)
80 Sumant Patro
81 Bo Yang
82
832 Current Version : 00.00.03.11
843 Older Version : 00.00.03.09
85
86 1. Memory Manager for IOCTL removed for 2.6 kernels.
87 pci_alloc_consistent replaced by dma_alloc_coherent. With this
88 change there is no need of memory manager in the driver code
89
90 On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
91 > I suspect all this horror is due to stupidity in the DMA API.
92 >
93 > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
94 > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
95 > to use GFP_KERNEL.
96 >
97 > I bet this fixes it
98
99 It does, but the DMA API was expanded to cope with this exact case, so
100 use dma_alloc_coherent() directly in the megaraid code instead. The dev
101 is just &pci_dev->dev.
102
103 James <James.Bottomley@SteelEye.com>
104
105 3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
106 4. Hibernation support added
107 5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
108
1091 Release Date : Fri Feb. 09 14:36:28 PST 2007 -
110 (emaild-id:megaraidlinux@lsi.com)
111 Sumant Patro
112 Bo Yang
113
1142 Current Version : 00.00.03.09
1153 Older Version : 00.00.03.08
116
117i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
118
119 The driver now waits for 10 seconds to elapse instead of 5 (as in
120 previous release) to resume IO.
121
1221 Release Date : Mon Feb. 05 11:35:24 PST 2007 -
123 (emaild-id:megaraidlinux@lsi.com)
124 Sumant Patro
125 Bo Yang
1262 Current Version : 00.00.03.08
1273 Older Version : 00.00.03.07
128
129i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
130
131 Fix: The driver is now throttling IO.
132 Checks added in megasas_queue_command to know if FW is able to
133 process commands within timeout period. If number of retries
134 is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
135 resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
136 from the time cmds were last sent to FW.
137
138ii. FW enables WCE bit in Mode Sense cmd for drives that are configured
139 as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
140 Disks are exposed with WCE=1. User is advised to enable Write Back
141 mode only when the controller has battery backup. At this time
142 Synhronize cache is not supported by the FW. Driver will short-cycle
143 the cmd and return sucess without sending down to FW.
144
1451 Release Date : Sun Jan. 14 11:21:32 PDT 2007 -
146 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
1472 Current Version : 00.00.03.07
1483 Older Version : 00.00.03.06
149
150i. bios_param entry added in scsi_host_template that returns disk geometry
151 information.
152
1531 Release Date : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
1542 Current Version : 00.00.03.06
1553 Older Version : 00.00.03.05
156
1571. Added new memory management module to support the IOCTL memory allocation. For IOCTL we try to allocate from the memory pool created during driver initialization. If mem pool is empty then we allocate at run time.
1582. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
159 (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
1 160
21 Release Date : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 1611 Release Date : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
32 Current Version : 00.00.03.05 1622 Current Version : 00.00.03.05