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* [PATCH] IB/mthca: add fast memory region implementationMichael S. Tsirkin2005-04-16
| | | | | | | | | | | | | | Implement fast memory regions (FMRs), where the driver writes directly into the HCA's translation tables rather than requiring a firmware command. For Tavor, MTTs for FMR are separate from regular MTTs, and are reserved at driver initialization. This is done to limit the amount of virtual memory needed to map the MTTs. For Arbel, there's no such limitation, and all MTTs and MPTs may be used for FMR or for regular MR. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: split MR key munging routinesMichael S. Tsirkin2005-04-16
| | | | | | | | | | | Split Tavor and Arbel/mem-free index<->hw key munging routines, so that FMR implementation can call correct implementation without testing HCA type (which it already knows). Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: add mthca_table_find() functionMichael S. Tsirkin2005-04-16
| | | | | | | | | | | Add mthca_table_find() function, which returns the lowmem address of an entry in a mem-free HCA's context tables. This will be used by the FMR implementation. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: add SYNC_TPT firmware commandMichael S. Tsirkin2005-04-16
| | | | | | | | | | Add code for SYNC_TPT firmware command, which will be used by FMR implementation. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: add mthca_write64_raw() for writing to MTT table directlyMichael S. Tsirkin2005-04-16
| | | | | | | | | | Add mthca_write64_raw() function, which will be used to write FMR entries that are in ioremapped PCI memory. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: encapsulate MTT buddy allocatorMichael S. Tsirkin2005-04-16
| | | | | | | | | | Encapsulate the buddy allocator used for MTT segments. This cleans up the code and also gets us ready to add FMR support. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: allow address handle creation in interrupt contextRoland Dreier2005-04-16
| | | | | | | | Make address handle verbs usable from interrupt context. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fill in opcode field for send completionsMichael S. Tsirkin2005-04-16
| | | | | | | | | | Fill in missing fields in send completions. Signed-off-by: Itamar Rabenstein <itamar@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fix MTT allocation in mem-free modeRoland Dreier2005-04-16
| | | | | | | | | | | | | | | | | | | Fix bug in MTT allocation in mem-free mode. I misunderstood the MTT size value returned by the firmware -- it is really the size of a single MTT entry, since mem-free mode does not segment the MTT as the original firmware did. This meant that our MTT addresses ended up being off by a factor of 8. This meant that our MTT allocations might overlap, and so we could overwrite and corrupt earlier memory regions when writing new MTT entries. We fix this by always using our 64-byte MTT segment size. This allows some simplification of the code as well, since there's no reason to put the MTT segment size in a variable -- we can always use our enum value directly. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: implement RDMA/atomic operations for mem-free modeRoland Dreier2005-04-16
| | | | | | | | Add code to support RDMA and atomic send work requests in mem-free mode. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fix format of CQ number for CQ eventsRoland Dreier2005-04-16
| | | | | | | | | CQ numbers are only 24 bits, so only print 6 hex digits and mask off reserved part when reporting a CQ event. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: only free doorbell records in mem-free modeRoland Dreier2005-04-16
| | | | | | | | On error path, only free doorbell records if we're in mem-free mode. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: print assigned IRQ when interrupt test failsRoland Dreier2005-04-16
| | | | | | | | Print IRQ number when NOP command interrupt test fails to help debugging. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: release mutex on doorbell alloc error pathRoland Dreier2005-04-16
| | | | | | | | Release mutex on error return path from mthca_alloc_db(). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fix MR allocation error pathMichael S. Tsirkin2005-04-16
| | | | | | | | | | Fix error handling in MR allocation for mem-free mode: mthca_free must get an MR index, not a key. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: allocate correct number of doorbell pagesRoland Dreier2005-04-16
| | | | | | | | | | Doorbell record pages are allocated in HCA page size chunks (always 4096 bytes), so we need to divide by 4096 and not PAGE_SIZE when figuring out how many pages we'll need space for. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: clean up mthca_dereg_mr()Roland Dreier2005-04-16
| | | | | | | | | | It's cleaner to kfree mthca_mr, and not rely on the fact that ib_mr is the first field in mthca_mr. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: allow unaligned memory regionsMichael S. Tsirkin2005-04-16
| | | | | | | | | | The first buffer of a memory region is not required to be page-aligned, so don't return an error if it's not. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fix posting sends with immediate dataRoland Dreier2005-04-16
| | | | | | | | | | When posting a work request with immediate data, put the immediate data in the immediate data field of the hardware's work request (rather than overwriting the flags field). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fix calculation of RDB shiftRoland Dreier2005-04-16
| | | | | | | | | Fix calculation of rdb_shift by using original number of QPs, not their slot in profile[] (which will be rearranged when we sort it). Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: fill in more device query fieldsRoland Dreier2005-04-16
| | | | | | | | Implement more of the device_query method in mthca. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB/mthca: map MPT/MTT context in mem-free modeRoland Dreier2005-04-16
| | | | | | | | | | In mem-free mode, when allocating memory regions, make sure that the HCA has context memory mapped to cover the virtual space used for the MPT and MTTs being used. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Remove incorrect commentsHal Rosenstock2005-04-16
| | | | | | | | | Eliminate unneeded and misleading comments Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Fix user MAD registrations with class 0Roland Dreier2005-04-16
| | | | | | | | | | Fix handling of MAD agent registrations with mgmt_class == 0. In this case ib_umad should pass a NULL registration request to the MAD core rather than a request with mgmt_class set to 0. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Trivial FMR printk cleanupLibor Michalek2005-04-16
| | | | | | | | | Add missing newline in printk. Signed-off-by: Libor Michalek <libor@topspin.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Fix FMR pool crashRoland Dreier2005-04-16
| | | | | | | | | | Mask bits correctly from jhash result in ib_fmr_hash() so that the computed bucket index is within our hash table. This fixes an SDP crash. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: remove unneeded includesHal Rosenstock2005-04-16
| | | | | | | | | Eliminate no longer needed include files Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IB: Keep MAD work completion validSean Hefty2005-04-16
| | | | | | | | | | | Replace the *wc field in ib_mad_recv_wc from pointing to a structure on the stack to one allocated with the received MAD buffer. This allows a client to access the *wc field after their receive completion handler has returned. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IPoIB: document conversion to debugfsRoland Dreier2005-04-16
| | | | | | | | | Update IPoIB documentation now that multicast debugging files have moved from ipoibdebugfs to debugfs. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IPoIB: convert to debugfsRoland Dreier2005-04-16
| | | | | | | | Convert IPoIB to use debugfs instead of its own custom debugging filesystem. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IPoIB: fix static rate calculationRoland Dreier2005-04-16
| | | | | | | | | | | | | Correct and simplify calculation of static rate. We need to round up the quotient of (local_rate - path_rate) / path_rate. To round up we add (path_rate - 1) to the numerator, so the quotient simplifies to (local_rate - 1) / path_rate. No idea how I came up with the old formula. Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IPoIB: set skb->mac.raw on receiveHal Rosenstock2005-04-16
| | | | | | | | | | Set skb->mac.raw on receive. This fixes crashes when this is dereferenced, for example by netfilter or when PF_PACKET is used. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Maintainers list update: linux-net -> netdevHorms2005-04-16
| | | | | | | | | Use netdev as the mailing list contact instead of the mostly dead linux-net list. Signed-off-by: Horms <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] arm: fix floppy disk dependenciesRussell King2005-04-16
| | | | | | | | | Both the RiscPC and (optionally) EBSA285 have floppy disk support. Allow this option to be selected on these ARM platforms again. Signed-off-by: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reparent_to_init cleanupCoywolf Qi Hunt2005-04-16
| | | | | | | | | This patch hides reparent_to_init(). reparent_to_init() should only be called by daemonize(). Signed-off-by: Coywolf Qi Hunt <coywolf@lovecn.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] MAINTAINERS: remove obsolete ACP/MWAVE MODEM entryAdrian Bunk2005-04-16
| | | | | | | | | | | Both maintainer email addresses are bouncing and the web address is no longer valid. Seems to be a good time to remove the entry. 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] let SOUND_AD1889 depend on PCIAdrian Bunk2005-04-16
| | | | | | | | | | | | | | Compiling SOUND_AD1889 with PCI=n results in the following compile error: sound/built-in.o(.text+0x24f0c): In function `ad1889_remove': : undefined reference to `pci_release_region' This patch adds the missing dependency on PCI. 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] cpuset: remove function attribute constBenoit Boissinot2005-04-16
| | | | | | | | | | | | | | | | | | | | | | | | gcc-4 warns with include/linux/cpuset.h:21: warning: type qualifiers ignored on function return type cpuset_cpus_allowed is declared with const extern const cpumask_t cpuset_cpus_allowed(const struct task_struct *p); First const should be __attribute__((const)), but the gcc manual explains that: "Note that a function that has pointer arguments and examines the data pointed to must not be declared const. Likewise, a function that calls a non-const function usually must not be const. It does not make sense for a const function to return void." The following patch remove const from the function declaration. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Acked-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pci enumeration on ixp2000: overflow in kernel/resource.cLennert Buytenhek2005-04-16
| | | | | | | | | | | | | | IXP2000 (ARM-based) platforms use a separate 'struct resource' for PCI MEM space. Resource allocation for PCI BARs always fails because the 'root' resource (the IXP2000 PCI MEM resource) always has the entire address space (00000000-ffffffff) free, and find_resource() calculates the size of that range as ffffffff-00000000+1=0, so all allocations fail because it thinks there is no space. (akpm: pls. double-check) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] CREDITS updateColin Leroy2005-04-16
| | | | | | | | Update Colin's credits entry. Signed-off-by: Colin Leroy <colin@colino.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add dontdiff fileRandy.Dunlap2005-04-16
| | | | | | | | Add a current 'dontdiff' file for use with 'diff -X dontdiff'. Signed-off-by: Randy Dunlap <rddunlap@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] update maintainer for /dev/randomMatt Mackall2005-04-16
| | | | | | | | | Ted has agreed to let me take over as maintainer of /dev/random and friends. I've gone ahead and added a line to his entry in CREDITS. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] opl3sa2: MODULE_PARM_DESCMagnus Damm2005-04-16
| | | | | | | | opl3sa2: Fix "irq"-parameter name typo for parameter description. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] add Big Endian variants of ioread/iowriteJames Bottomley2005-04-16
| | | | | | | | | | | | | | | | | | In the new io infrastructure, all of our operators are expecting the underlying device to be little endian (because the PCI bus, their main consumer, is LE). However, there are a fair few devices and busses in the world that are actually Big Endian. There's even evidence that some of these BE bus and chip types are attached to LE systems. Thus, there's a need for a BE equivalent of our io{read,write}{16,32} operations. The attached patch adds this as io{read,write}{16,32}be. When it's in, I'll add the first consume (the 53c700 SCSI chip driver). Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] efi: eliminate bad section referencesmaximilian attems2005-04-16
| | | | | | | | | | | | | | | | | | | | | | Randy please double check especially this one. there may be a better solution. Fix efi section references: remove __initdata for struct efi efi_phys and struct efi_memory_map memmap Error: ./arch/i386/kernel/efi.o .text refers to 000000d3 R_386_32 .init.data Error: ./arch/i386/kernel/efi.o .text refers to 000000ff R_386_32 .init.data efi_memmap_walk (which is not __init nor static) accesses both efi_phys and memmap. Signed-off-by: maximilian attems <janitor@sternwelten.at> Acked-by: Randy Dunlap <rddunlap@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] hd: eliminate bad section referencesmaximilian attems2005-04-16
| | | | | | | | | | | | Fix hd section references: make parse_hd_setup() __init Error: ./drivers/ide/legacy/hd.o .text refers to 00000943 R_386_PC32 .init.text Signed-off-by: maximilian attems <janitor@sternwelten.at> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pnpbios: eliminate bad section referencesmaximilian attems2005-04-16
| | | | | | | | | | | | | | | | | one of the last buildcheck errors on i386, thanks Randy again for double checking. Fix pnpbios section references: make dmi_system_id pnpbios_dmi_table __initdata Error: ./drivers/pnp/pnpbios/core.o .data refers to 00000100 R_386_32 .init.text Error: ./drivers/pnp/pnpbios/core.o .data refers to 0000012c R_386_32 .init.text Signed-off-by: maximilian attems <janitor@sternwelten.at> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix comment in list.h that refers to nonexistent APIPaul E. McKenney2005-04-16
| | | | | | | | | The hlist_for_each_entry_rcu() comment block refers to a nonexistent hlist_add_rcu() API, needs to change to hlist_add_head_rcu(). Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Direct IO async short read fixDaniel McNeil2005-04-16
| | | | | | | | | | | | | | | | The direct I/O code is mapping the read request to the file system block. If the file size was not on a block boundary, the result would show the the read reading past EOF. This was only happening for the AIO case. The non-AIO case truncates the result to match file size (in direct_io_worker). This patch does the same thing for the AIO case, it truncates the result to match the file size if the read reads past EOF. When I/O completes the result can be truncated to match the file size without using i_size_read(), thus the aio result now matches the number of bytes read to the end of file. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] undo do_readv_writev() behavior changeDave Hansen2005-04-16
| | | | | | | | | | | Bugme bug 4326: http://bugme.osdl.org/show_bug.cgi?id=4326 reports: executing the systemcall readv with Bad argument ->len == -1) it gives out error EFAULT instead of EINVAL Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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