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2008-01-25ocfs2: Support commit= mount optionMark Fasheh
Mostly taken from ext3. This allows the user to set the jbd commit interval, in seconds. The default of 5 seconds stays the same, but now users can easily increase the commit interval. Typically, this would be increased in order to benefit performance at the expense of data-safety. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Add missing permission checksMark Fasheh
Check that an online resize is being driven by a user with permission to change system resource limits. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25[PATCH 2/2] ocfs2: Implement group add for online resizeTao Ma
This patch adds the ability for a userspace program to request that a properly formatted cluster group be added to the main allocation bitmap for an Ocfs2 file system. The request is made via an ioctl, OCFS2_IOC_GROUP_ADD. On a high level, this is similar to ext3, but we use a different ioctl as the structure which has to be passed through is different. During an online resize, tunefs.ocfs2 will format any new cluster groups which must be added to complete the resize, and call OCFS2_IOC_GROUP_ADD on each one. Kernel verifies that the core cluster group information is valid and then does the work of linking it into the global allocation bitmap. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25[PATCH 1/2] ocfs2: Add group extend for online resizeTao Ma
This patch adds the ability for a userspace program to request an extend of last cluster group on an Ocfs2 file system. The request is made via ioctl, OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is obviously Ocfs2 specific. tunefs.ocfs2 would call this for an online-resize operation if the last cluster group isn't full. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25[SCSI] usbstorage: use last_sector_bug flag universallyHans de Goede
This patch sets the last_sector_bug flag to 1 for all USB disks. This is needed to makes the cardreader on various HP multifunction printers work. Since the performance impact is negible we set this flag for all USB disks to avoid an unusual_devs.h nightmare. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-25ocfs2: Reserve ioctl rangeTao Ma
We need to reserve at least two ioctls for online-resize. Reserve a small range of ioctls for Ocfs2 use in Documentation/ioctl-number.txt. This should give us enough room for future growth. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Initalize bitmap_cpg of ocfs2_super to be the maximum.Tao Ma
This value is initialized from global_bitmap->id2.i_chain.cl_cpg. If there is only 1 group, it will be equal to the total clusters in the volume. So as for online resize, it should change for all the nodes in the cluster. It isn't easy and there is no corresponding lock for it. bitmap_cpg is only used in 2 areas: 1. Check whether the suballoc is too large for us to allocate from the global bitmap, so it is little used. And now the suballoc size is 2048, it rarely meet this situation and the check is almost useless. 2. Calculate which group a cluster belongs to. We use it during truncate to figure out which cluster group an extent belongs too. But we should be OK if we increase it though as the cluster group calculated shouldn't change and we only ever have a small bitmap_cpg on file systems with a single cluster group. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-26[CRYPTO] hifn795x: Disallow built-in hifn795x when HW_RANDOM is mHerbert Xu
Currently it is possible to select HW_RANDOM as a module and have hifn795x built-in. This causes a build problem because hifn795x will then call hwrng_register which isn't built-in. This patch introduces a new config option to control the hifn795x RNG which lets us avoid this problem. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-01-25ocfs2: Documentation updateMark Fasheh
Remove 'readpages' from the list in ocfs2.txt. Instead of having two identical lists, I just removed the list in the OCFS2 section of fs/Kconfig and added a pointer to Documentation/filesystems/ocfs2.txt. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Readpages supportMark Fasheh
Add ->readpages support to Ocfs2. This is rather trivial - all it required is a small update to ocfs2_get_block (for mapping full extents via b_size) and an ocfs2_readpages() function which partially mirrors ocfs2_readpage(). Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25dlm: Split lock mode and flag constants into a sharable header.Joel Becker
This allows others to use the DLM constants without being tied to the function API of fs/dlm. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Rename ocfs2_meta_[un]lockMark Fasheh
Call this the "inode_lock" now, since it covers both data and meta data. This patch makes no functional changes. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Remove data locksMark Fasheh
The meta lock now covers both meta data and data, so this just removes the now-redundant data lock. Combining locks saves us a round of lock mastery per inode and one less lock to ping between nodes during read/write. We don't lose much - since meta locks were always held before a data lock (and at the same level) ordered writeout mode (the default) ensured that flushing for the meta data lock also pushed out data anyways. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Add data downconvert worker to inode lockMark Fasheh
In order to extend inode lock coverage to inode data, we use the same data downconvert worker with only a small modification to only do work for regular files. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2: Remove mount/unmount votesMark Fasheh
The node maps that are set/unset by these votes are no longer relevant, thus we can remove the mount and umount votes. Since those are the last two remaining votes, we can also remove the entire vote infrastructure. The vote thread has been renamed to the downconvert thread, and the small amount of functionality related to managing it has been moved into fs/ocfs2/dlmglue.c. All references to votes have been removed or updated. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (81 commits) RDMA/cxgb3: Fix the T3A workaround checks IB/ipath: Remove unnecessary cast IPoIB: Constify seq_operations function pointer tables RDMA/cxgb3: Mark QP as privileged based on user capabilities RDMA/cxgb3: Fix page shift calculation in build_phys_page_list() RDMA/cxgb3: Flush the receive queue when closing IB/ipath: Trivial simplification of ipath_make_ud_req() IB/mthca: Update latest "native Arbel" firmware revision IPoIB: Remove redundant check of netif_queue_stopped() in xmit handler IB/ipath: Add mappings from HW register to PortInfo port physical state IB/ipath: Changes to support PIO bandwidth check on IBA7220 IB/ipath: Minor cleanup of unused fields and chip-specific errors IB/ipath: New sysfs entries to control 7220 features IB/ipath: Add new chip-specific functions to older chips, consistent init IB/ipath: Remove unused MDIO interface code IB/ehca: Prevent RDMA-related connection failures on some eHCA2 hardware IB/ehca: Add "port connection autodetect mode" IB/ehca: Define array to store SMI/GSI QPs IB/ehca: Remove CQ-QP-link before destroying QP in error path of create_qp() IB/iser: Add change_queue_depth method ...
2008-01-25ocfs2: Remove fs dependency on ocfs2_heartbeat moduleMark Fasheh
Now that the dlm exposes domain information to us, we don't need generic node up / node down callbacks. And since the DLM is only telling us when a node goes down unexpectedly, we no longer need to optimize away node down callbacks via the umount map. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25ocfs2_dlm: Call node eviction callbacks from heartbeat handlerMark Fasheh
With this, a dlm client can take advantage of the group protocol in the dlm to get full notification whenever a node within the dlm domain leaves unexpectedly. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2008-01-25RDMA/cxgb3: Fix the T3A workaround checksSteve Wise
Correctly work around T3A issues by checking "hwtype != T3A" instead of "hwtype == T3B". This will be needed for new hardware types. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Remove unnecessary castJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IPoIB: Constify seq_operations function pointer tablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25RDMA/cxgb3: Mark QP as privileged based on user capabilitiesSteve Wise
This is needed to support zero-stag properly. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25RDMA/cxgb3: Fix page shift calculation in build_phys_page_list()Steve Wise
The existing logic incorrectly maps this buffer list: 0: addr 0x10001000, size 0x1000 1: addr 0x10002000, size 0x1000 To this bogus page list: 0: 0x10000000 1: 0x10002000 The shift calculation must also take into account the address of the first entry masked by the page_mask as well as the last address+size rounded up to the next page size. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25RDMA/cxgb3: Flush the receive queue when closingSteve Wise
- for kernel mode cqs, call event notification handler when flushing. - flush QP when moving from RTS -> CLOSING. - fix logic to identify a kernel mode qp. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Trivial simplification of ipath_make_ud_req()Ralph Campbell
Move the increment of s_hdrwords into the existing if block that tests if we're doing a send with immediate, to save one test of the opcode. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/mthca: Update latest "native Arbel" firmware revisionRoland Dreier
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IPoIB: Remove redundant check of netif_queue_stopped() in xmit handlerKrishna Kumar
qdisc_run() now tests for queue_stopped() before calling __qdisc_run(), and the same check is done in every iteration of __qdisc_run(), so another check is not required in the driver xmit. This means that ipoib_start_xmit() no longer needs to test netif_queue_stopped(); the test was added to fix earlier kernels, where the networking stack did not guarantee that the xmit method of an LLTX driver would not be called after the queue was stopped, but current kernels do provide this guarantee. To validate, I put a debug in the TX_BUSY path which never hit with 64 threads running overnight exercising this code a few 100 million times. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Add mappings from HW register to PortInfo port physical stateRalph Campbell
Add new mappings from port physical state (a HW register value) to the IB SubnGet(PortInfo) port physical state. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Changes to support PIO bandwidth check on IBA7220Dave Olson
The IBA7220 uses a count-based triggering mechanism, and therefore can't use the same bandwidth verification mechanism as older chips. To support the 7220, allow enabling and disabling armlaunch errors on application request. Minor robustness improvements as well. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Minor cleanup of unused fields and chip-specific errorsDave Olson
Clean up some unused header fields, minor related cleanup. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: New sysfs entries to control 7220 featuresMichael Albaugh
IBA7220 includes many more configurable IB settings. Getting/setting these is now grouped into a pair of chip specific functions accessed via function pointers. Provide sysfs access to these settings. Signed-off-by: Michael Albaugh <michael.albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Add new chip-specific functions to older chips, consistent initDave Olson
This adds the new (sometimes empty) chip-specific functions to the older chips, and makes the initialization and related functions consistent across all 3 chips. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Remove unused MDIO interface codeDave Olson
This code has been unused for some time, but still had leftovers from when it was used. Signed-off-by: Dave Olson <dave.olson@qlogic.com Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ehca: Prevent RDMA-related connection failures on some eHCA2 hardwareJoachim Fenkes
Some HW revisions of eHCA2 may cause an RC connection to break if they received RDMA Reads over that connection before. This can be prevented by assuring that, after the first RDMA Read, the QP receives a new RDMA Read every few million link packets. Include code into the driver that inserts an empty (size 0) RDMA Read into the message stream every now and then if the consumer doesn't post them frequently enough. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ehca: Add "port connection autodetect mode"Hoang-Nam Nguyen
This patch enhances ehca with a capability to "autodetect" the ports being connected physically. In order to utilize that function the module option nr_ports must be set to -1 (default is 2 - two ports). This feature is experimental and will made the default later. More detail: If the user connects only one port to the switch, current code requires 1) port one to be connected and 2) module option nr_ports=1 to be given. If autodetect is enabled, ehca will not wait at creation of the GSI QP for the respective port to become active. Since firmware does not accept modify_qp() while the port is down at initialization, we need to cache all calls to modify_qp() for the SMI/GSI QP and just return a good return code. When a port is activated and we get a PORT_ACTIVE event, we replay the cached modify-qp() parms and re-trigger any posted recv WRs. Only then do we forward the PORT_ACTIVE event to registered clients. The result of this autodetect patch is that all ports will be accessible by the users. Depending on their respective cabling only those ports that are connected properly will become operable. If a user tries to modify a regular QP of a non-connected port, modify_qp() will fail. Furthermore, ibv_devinfo should show the port state accordingly. Note that this patch primarily improves the loading behaviour of ehca. If the cable is removed while the driver is operating and plugged in again, firmware will handle that properly by sending an appropriate async event. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ehca: Define array to store SMI/GSI QPsHoang-Nam Nguyen
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ehca: Remove CQ-QP-link before destroying QP in error path of create_qp()Hoang-Nam Nguyen
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/iser: Add change_queue_depth methodErez Zilber
Add a .change_queue_depth handler to the scsi_host_template in the iSER driver. iscsi_change_queue_depth was added to iscsi_tcp in order to solve the problem of queue depth which was too high for some targets. It is also applicable for iSER. Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/iser: Print information about unhandled RDMA CM eventsErez Zilber
Some RDMA CM events are not supported or not handled in iSER. This patch adds some info (printk) for the user about them. Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/fmr_pool: ib_fmr_pool_flush() should flush all dirty FMRsOlaf Kirch
When a FMR is released via ib_fmr_pool_unmap(), the FMR usually ends up on the free_list rather than the dirty_list (because we allow a certain number of remappings before actually requiring a flush). However, ib_fmr_batch_release() only looks at dirty_list when flushing out old mappings. This means that when ib_fmr_pool_flush() is used to force a flush of the FMR pool, some dirty FMRs that have not reached their maximum remap count will not actually be flushed. Fix this by flushing all FMRs that have been used at least once in ib_fmr_batch_release(). Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/fmr_pool: Flush serial numbers can get out of syncOlaf Kirch
Normally, the serial numbers for flush requests and flushes executed for an FMR pool should be in sync. However, if the FMR pool flushes dirty FMRs because the dirty_watermark was reached, we wake up the cleanup thread and let it do its stuff. As a side effect, the cleanup thread increments pool->flush_ser, which leaves it one higher than pool->req_ser. The next time the user calls ib_flush_fmr_pool(), the cleanup thread will be woken up, but ib_flush_fmr_pool() won't wait for the flush to complete because flush_ser is already past req_ser. This means the FMRs that the user expects to be flushed may not have all been flushed when the function returns. Fix this by telling the cleanup thread to do work exclusively by incrementing req_ser, and by moving the comparison of dirty_len and dirty_watermark into ib_fmr_pool_unmap(). Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
2008-01-25IB/umad: Simplify and fix lockingRoland Dreier
In addition to being overly complex, the locking in user_mad.c is broken: there were multiple reports of deadlocks and lockdep warnings. In particular it seems that a single thread may end up trying to take the same rwsem for reading more than once, which is explicitly forbidden in the comments in <linux/rwsem.h>. To solve this, we change the locking to use plain mutexes instead of rwsems. There is one mutex per open file, which protects the contents of the struct ib_umad_file, including the array of agents and list of queued packets; and there is one mutex per struct ib_umad_port, which protects the contents, including the list of open files. We never hold the file mutex across calls to functions like ib_unregister_mad_agent(), which can call back into other ib_umad code to queue a packet, and we always hold the port mutex as long as we need to make sure that a device is not hot-unplugged from under us. This even makes things nicer for users of the -rt patch, since we remove calls to downgrade_write() (which is not implemented in -rt). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Fix some sparse warnings about shadowed symbolsRoland Dreier
There are a few places in the ipath driver where a variable is re-declared within a block where it is already in scope. Most of these extra declarations can simply be removed, since the variable from the outer scope is used in a way so that it does not need to keep its variable across the block with the re-declaration. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25RDMA/cxgb3: Endianness annotation for irs fieldRoland Dreier
t3_rdma_init_wr.irs is a big-endian field, so declare it as __be32. This fixes one sparse warning. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ehca: Use round_jiffies() for EQ polling timerAnton Blanchard
Use round_jiffies() to align ehca's 1-second timer with other timers and potentially save power by sleeping cores for longer. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25RDMA/cma: Override default responder_resources with user valueSean Hefty
By default, the responder_resources parameter is set to that received in a connection request. The passive side may override this value when accepting the connection. Use the value provided by the passive side when transitioning the QP to RTR state, rather than the value given in the connect request. Without this change, the RTR transition may fail if the passive side supports fewer responder_resources than that in the request. For code consistency and to protect against QP destruction, restructure overriding initiator_depth to match how responder_resources is set. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Drop support for the original QHT7040 boardDave Olson
The original QHT7040 had significant performance issues so there was an additional check in the driver for a newer serial number. Support for the small quantities of that board shipped has been dropped, so this patch removes the special checks to simplify the code. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Add ipath_read_ireg() abstractionArthur Jones
Different chips have different width interrupt status registers, so add a flag and accessor function to decide which width register read to use. Signed-off-by: Arthur Jones <arthur.jones@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-01-25IB/ipath: Add flag and handling for chips with swapped register bugRalph Campbell
The 6110 had a bug that caused some registers to be swapped; it was fixed for the 7220 (and didn't affect the 6120 because it had fewer registers). This adds a flag and related code to handle that, and includes some minor cleanups in the same area. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
2008-01-25IB/ipath: Port config has on-chip effects for 7220Ralph Campbell
The number of configured ports for the 7220 changes the number of eager TIDs available per port, for all but port 0 (kernel port) which remains constant, so add a field to give port0 count separate from the portdata structure. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>