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* IB/ehca: Tweak trace message formatHoang-Nam Nguyen2006-10-021-1/+1
| | | | | | | Add an extra space to make things more readable. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix device registrationHoang-Nam Nguyen2006-10-021-17/+19
| | | | | | | | | | Move the call to ib_register_device() later, since a device should not be registered until it is completely read to be used. This fixes crashes that occur if an upper-layer driver such as IPoIB is loaded before the ehca module. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ipath: Fix RDMA readsRalph Campbell2006-10-021-27/+32
| | | | | | | | | | The PSN used to generate the request following a RDMA read was incorrect and some state booking wasn't maintained correctly. This patch fixes that. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
* RDMA/cma: Optimize error handlingKrishna Kumar2006-10-021-10/+14
| | | | | | | | | | Reorganize code relating to cma_get_net_info() and rdam_create_id() to optimize error case handling (no need to alloc memory/etc. as part of rdma_create_id() if input parameters are wrong). Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Eliminate unnecessary remove_listKrishna Kumar2006-10-021-5/+1
| | | | | | | | | Eliminate remove_list by using list_del_init() instead during device removal handling. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Set status correctly on route resolution errorSean Hefty2006-10-021-0/+1
| | | | | | | | On reporting a route error, also include the status for the error, rather than indicating a status of 0 when an error has occurred. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Fix device removal raceKrishna Kumar2006-10-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The race is as follows: A process : cma_process_remove() calls cma_remove_id_dev(), which sets id state to CMA_DEVICE_REMOVAL and calls wait_event(dev_remove). B process : cma_req_handler() had incremented dev_remove, and calls cma_acquire_ib_dev() and on failure calls cma_release_remove(), which does a wake_up of cma_process_remove(). Then cma_req_handler() calls rdma_destroy_id(); A Process : cma_remove_id_dev() gets woken and checks the state of id, and since it is still (wrongly) CMA_DEVICE_REMOVAL, it calls notify_user(id) and if that fails, the caller - cma_process_remove() calls rdma_destroy_id(id). Two processes can call rdma_destroy_id(), resulting in one de-referencing kfreed id_priv. Fix is for process B to set CMA_DESTROYING in cma_req_handler() so that process A will return instead of doing a rdma_destroy_id(). Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Fix leak of cm_ids in case of failuresKrishna Kumar2006-10-021-4/+11
| | | | | | | | cma_connect_ib() and cma_connect_iw() leak cm_id's in failure cases. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] namespaces: utsname: use init_utsname when appropriateSerge E. Hallyn2006-10-021-1/+1
| | | | | | | | | | | | | | | | | | | | | In some places, particularly drivers and __init code, the init utsns is the appropriate one to use. This patch replaces those with a the init_utsname helper. Changes: Removed several uses of init_utsname(). Hope I picked all the right ones in net/ipv4/ipconfig.c. These are now changed to utsname() (the per-process namespace utsname) in the previous patch (2/7) [akpm@osdl.org: CIFS fix] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Cc: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] r/o bind mount prepwork: inc_nlink() helperDave Hansen2006-10-011-2/+2
| | | | | | | | | | | This is mostly included for parity with dec_nlink(), where we will have some more hooks. This one should stay pretty darn straightforward for now. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2006-09-3038-884/+1973
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: (33 commits) IB/ipath: Fix lockdep error upon "ifconfig ibN down" IB/ipath: Fix races with ib_resize_cq() IB/ipath: Support new PCIE device, QLE7142 IB/ipath: Set CPU affinity early IB/ipath: Fix EEPROM read when driver is compiled with -Os IB/ipath: Fix and recover TXE piobuf and PBC parity errors IB/ipath: Change HT CRC message to indicate how to resolve problem IB/ipath: Clean up module exit code IB/ipath: Call mtrr_del with correct arguments IB/ipath: Flush RWQEs if access error or invalid error seen IB/ipath: Improved support for PowerPC IB/ipath: Drop unnecessary "(void *)" casts IB/ipath: Support multiple simultaneous devices of different types IB/ipath: Fix mismatch in shifts and masks for printing debug info IB/ipath: Fix compiler warnings and errors on non-x86_64 systems IB/ipath: Print more informative parity error messages IB/ipath: Ensure that PD of MR matches PD of QP checking the Rkey IB/ipath: RC and UC should validate SLID and DLID IB/ipath: Only allow complete writes to flash IB/ipath: Count SRQs properly ...
| * IB/ipath: Fix lockdep error upon "ifconfig ibN down"Bryan O'Sullivan2006-09-281-5/+7
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Fix races with ib_resize_cq()Bryan O'Sullivan2006-09-281-8/+22
| | | | | | | | | | | | | | | | | | The resize CQ function changes the memory used to store the queue. Other routines need to honor the lock before accessing the pointer to the queue and verify that the head and tail are in range. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Support new PCIE device, QLE7142Bryan O'Sullivan2006-09-281-0/+3
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Set CPU affinity earlyBryan O'Sullivan2006-09-282-10/+35
| | | | | | | | | | | | | | | | | | This change moves around port assignment so that it happens before any memory is allocated. This allows memory to be allocated on an appropriate CPU, which improves performance for users of /dev/ipath. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Fix EEPROM read when driver is compiled with -OsBryan O'Sullivan2006-09-281-0/+1
| | | | | | | | | | | | | | | | | | The EEPROM is read via programmable I/O pins. When the driver is compiled -Os, the CPU can speculatively read the I/O value before it is valid. This patch fixes the problem. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Fix and recover TXE piobuf and PBC parity errorsBryan O'Sullivan2006-09-285-52/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can sometimes trigger parity errors due to processor speculative reads to our write-combined memory (mostly seen on Woodcrest). Add a stats counter for these. Factored out the sendbuffererror buffer cancellation code so it can be used in the new handling; suppress likely subsequent error messages if within two jiffies of the cancellation. Also restore 2 dropped TXE lines on hwe_bitsextant noticed while debugging. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Change HT CRC message to indicate how to resolve problemBryan O'Sullivan2006-09-281-1/+1
| | | | | | | | | | | | | | | | The system must be powercycled to clear a HT CRC error; reloading the driver is not enough. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Clean up module exit codeBryan O'Sullivan2006-09-281-161/+128
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Call mtrr_del with correct argumentsBryan O'Sullivan2006-09-282-2/+13
| | | | | | | | | | | | | | | | We were passing 0 for base and length, which worked on older kernels, but it doesn't seem to any longer. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Flush RWQEs if access error or invalid error seenBryan O'Sullivan2006-09-284-9/+26
| | | | | | | | | | | | | | | | If the receiver goes into the error state, we need to flush the posted receive WQEs. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Improved support for PowerPCBryan O'Sullivan2006-09-288-73/+198
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Drop unnecessary "(void *)" castsBryan O'Sullivan2006-09-281-3/+3
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Support multiple simultaneous devices of different typesBryan O'Sullivan2006-09-287-63/+81
| | | | | | | | | | | | | | | | Prior to this change, the driver was not able to support a HT and PCIE card simultaneously present in the same machine. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Fix mismatch in shifts and masks for printing debug infoBryan O'Sullivan2006-09-281-2/+2
| | | | | | | | | | | | | | | | | | | | Fixed mismatch in linkstate/trainingstate shifts and masks in the IPATH_IBSTATE_MASK macro. It kept some linktrainingstates from being printed correctly in debug; no functionality issue unless I misread the code. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Fix compiler warnings and errors on non-x86_64 systemsBryan O'Sullivan2006-09-281-5/+4
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Print more informative parity error messagesBryan O'Sullivan2006-09-285-97/+158
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Ensure that PD of MR matches PD of QP checking the RkeyBryan O'Sullivan2006-09-287-29/+26
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: RC and UC should validate SLID and DLIDBryan O'Sullivan2006-09-282-0/+8
| | | | | | | | | | | | | | This is required for IB conformance (spec ch. 9.6.1.5). Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Only allow complete writes to flashBryan O'Sullivan2006-09-281-6/+3
| | | | | | | | | | | | | | | | Don't allow a write to the eeprom from ipathfs unless the write is exactly 128 bytes and starts at offset 0. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Count SRQs properlyBryan O'Sullivan2006-09-281-8/+15
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Lock and count allocated CQs properlyBryan O'Sullivan2006-09-281-6/+12
| | | | | | | | | | Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Clean up handling of GUID 0Bryan O'Sullivan2006-09-282-8/+17
| | | | | | | | | | | | | | | | Respond with an error to the SM if our GUID is 0, and don't allow the user to set our GUID to 0. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Unregister from IB core earlyBryan O'Sullivan2006-09-281-1/+11
| | | | | | | | | | | | | | | | This gives upper-level protocols a chance to unregister while the device is still usable. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Support revision 2 InfiniPath PCIE devicesBryan O'Sullivan2006-09-285-37/+215
| | | | | | | | | | | | | | This also entailed a little GPIO-interrupt general cleanup. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Driver support for userspace sharing of HW contextsBryan O'Sullivan2006-09-285-241/+754
| | | | | | | | | | | | | | | | | | This allows multiple userspace processes to share a single hardware context in a master/slave arrangement. It is backwards binary compatible with existing userspace. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Fix memory leak if allocation failsBryan O'Sullivan2006-09-281-0/+3
| | | | | | | | | | | | | | | | If the second allocation failed, the first structure allocated in this routine was not freed. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/ipath: Limit # of packets sent without an ACK receivedBryan O'Sullivan2006-09-284-20/+37
| | | | | | | | | | | | | | | | The sender requests an ACK every 1/2 MB to avoid retransmit timeouts that were causing MVAPICH mod_bw to fail after a predictable number of sends. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/iser: Fix the description of iSER in KconfigErez Zilber2006-09-281-6/+7
| | | | | | | | | | | | | | Fix the description of iSER in Kconfig. It is not accurate. Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/iser: DMA unmap unaligned for RDMA data before touching itErez Zilber2006-09-283-39/+59
| | | | | | | | | | | | | | | | | | | | | | | | iSER uses the DMA mapping api to map the page holding the SCSI command data to the HCA DMA address space. When the command data is not aligned for RDMA, the data is copied to/from an allocated buffer which in turn is used for executing this command. The pages associated with the command must be unmapped before being touched. Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/iser: Have iSER data transaction object point to iSER connErez Zilber2006-09-284-9/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | iSER uses a data transaction object (struct iser_dto) as part of its IB data descriptors (struct iser_desc) management. It also uses a hierarchy of connection structures pointing to each other. A DTO may exist even after the iscsi_iser connection pointed by it is destroyed (eg one that is bound to a post receive buffer which was flushed by the IB HW). Hence DTOs need point to the lowest connection, which is struct iser_conn. Signed-off-by: Erez Zilber <erezz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * RDMA/amso1100: Fix memory leak in c2_reg_phys_mr()Roland Dreier2006-09-281-1/+3
| | | | | | | | | | | | | | | | | | If the allocation of mr fails, then c2_reg_phys_mr() leaks the page_list array it allocated earlier. This was Coverity CID #1413. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * RDMA/amso1100: Fix error path in c2_llp_accept()Eric Sesterhenn2006-09-281-8/+7
| | | | | | | | | | | | | | | | | | | | | | Another NULL dereference spotted by the Coverity checker (cid #1395): In case we can't alloc the vq_req, we goto bail1, where we call vq_req_free(c2dev, vq_req); which then dereferences vq_req. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Acked-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * RDMA/amso1100: Fix compile warningsRoland Dreier2006-09-274-5/+7
| | | | | | | | | | | | | | Make sure all 64-bit quantities are cast to unsigned long long when printed with "%ll" printk formats. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [IPV4]: annotate inetdev.h helpersAl Viro2006-09-291-2/+2
|/ | | | | | | | inet_confirm_addr(), inet_ifa_byprefix(), ip_dev_find(), inet_make_mask() and inet_ifa_match() annotated, along with inferred net-endian variables Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2006-09-271-1/+0
| | | | | | | | | | | | | | | | This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_privateTheodore Ts'o2006-09-272-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | The following patches reduce the size of the VFS inode structure by 28 bytes on a UP x86. (It would be more on an x86_64 system). This is a 10% reduction in the inode size on a UP kernel that is configured in a production mode (i.e., with no spinlock or other debugging functions enabled; if you want to save memory taken up by in-core inodes, the first thing you should do is disable the debugging options; they are responsible for a huge amount of bloat in the VFS inode structure). This patch: The filesystem or device-specific pointer in the inode is inside a union, which is pretty pointless given that all 30+ users of this field have been using the void pointer. Get rid of the union and rename it to i_private, with a comment to explain who is allowed to use the void pointer. This is just a cleanup, but it allows us to reuse the union 'u' for something something where the union will actually be used. [judith@osdl.org: powerpc build fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Judith Lebzelter <judith@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Really ignore kmem_cache_destroy return valueAlexey Dobriyan2006-09-271-4/+1
| | | | | | | | | | | | | | | | * Rougly half of callers already do it by not checking return value * Code in drivers/acpi/osl.c does the following to be sure: (void)kmem_cache_destroy(cache); * Those who check it printk something, however, slab_error already printed the name of failed cache. * XFS BUGs on failed kmem_cache_destroy which is not the decision low-level filesystem driver should make. Converted to ignore. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* MSI: Rename PCI_CAP_ID_HT_IRQCONF into PCI_CAP_ID_HTBrice Goglin2006-09-271-3/+2
| | | | | | | | | | | | | 0x08 is the HT capability, while PCI_CAP_ID_HT_IRQCONF would be the subtype 0x80 that mpic_scan_ht_pic() uses. Rename PCI_CAP_ID_HT_IRQCONF into PCI_CAP_ID_HT. And by the way, use it in the ipath driver instead of defining its own HT_CAPABILITY_ID. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge mulgrave-w:git/linux-2.6James Bottomley2006-09-244-0/+4
|\ | | | | | | | | | | | | | | Conflicts: include/linux/blkdev.h Trivial merge to incorporate tag prototypes.
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