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* Merge branch 'for-2.6.28' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2008-10-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.28' of git://linux-nfs.org/~bfields/linux: (59 commits) svcrdma: Fix IRD/ORD polarity svcrdma: Update svc_rdma_send_error to use DMA LKEY svcrdma: Modify the RPC reply path to use FRMR when available svcrdma: Modify the RPC recv path to use FRMR when available svcrdma: Add support to svc_rdma_send to handle chained WR svcrdma: Modify post recv path to use local dma key svcrdma: Add a service to register a Fast Reg MR with the device svcrdma: Query device for Fast Reg support during connection setup svcrdma: Add FRMR get/put services NLM: Remove unused argument from svc_addsock() function NLM: Remove "proto" argument from lockd_up() NLM: Always start both UDP and TCP listeners lockd: Remove unused fields in the nlm_reboot structure lockd: Add helper to sanity check incoming NOTIFY requests lockd: change nlmclnt_grant() to take a "struct sockaddr *" lockd: Adjust nlmsvc_lookup_host() to accomodate AF_INET6 addresses lockd: Adjust nlmclnt_lookup_host() signature to accomodate non-AF_INET lockd: Support non-AF_INET addresses in nlm_lookup_host() NLM: Convert nlm_lookup_host() to use a single argument svcrdma: Add Fast Reg MR Data Types ...
| * Merge branch 'from-tomtucker' into for-2.6.28J. Bruce Fields2008-10-08
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| | * svcrdma: Fix IRD/ORD polarityTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | The inititator/responder resources in the event have been swapped. They no represent what the local peer would set their values to in order to match the peer. Note that iWARP does not exchange these on the wire and the provider is simply putting in the local device max. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Update svc_rdma_send_error to use DMA LKEYTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | Update the svc_rdma_send_error code to use the DMA LKEY which is valid regardless of the memory registration strategy in use. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Modify the RPC reply path to use FRMR when availableTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | Use FRMR to map local RPC reply data. This allows RDMA_WRITE to send reply data using a single WR. The FRMR is invalidated by linking the LOCAL_INV WR to the RDMA_SEND message used to complete the reply. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Modify the RPC recv path to use FRMR when availableTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RPCRDMA requests that specify a read-list are fetched with RDMA_READ. Using an FRMR to map the data sink improves NFSRDMA security on transports that place the RDMA_READ data sink LKEY on the wire because the valid lifetime of the MR is only the duration of the RDMA_READ. The LKEY is invalidated when the last RDMA_READ WR completes. Mapping the data sink also allows for very large amounts to data to be fetched with a single WR, so if the client is also using FRMR, the entire RPC read-list can be fetched with a single WR. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Add support to svc_rdma_send to handle chained WRTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | WR can be submitted as linked lists of WR. Update the svc_rdma_send routine to handle WR chains. This will be used to submit a WR that uses an FRMR with another WR that invalidates the FRMR. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Modify post recv path to use local dma keyTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | Update the svc_rdma_post_recv routine to use the adapter's global LKEY instead of sc_phys_mr which is only valid when using a DMA MR. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Add a service to register a Fast Reg MR with the deviceTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | Fast Reg MR introduces a new WR type. Add a service to register the region with the adapter and update the completion handling to support completions with a NULL WR context. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Query device for Fast Reg support during connection setupTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | Query the device capabilities in the svc_rdma_accept function to determine what advanced memory management capabilities are supported by the device. Based on the query, select the most secure model available given the requirements of the transport and capabilities of the adapter. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Add FRMR get/put servicesTom Tucker2008-10-06
| | | | | | | | | | | | | | | | | | | | | | | | Add services for the allocating, freeing, and unmapping Fast Reg MR. These services will be used by the transport connection setup, send and receive routines. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| * | NLM: Remove unused argument from svc_addsock() functionChuck Lever2008-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up: The svc_addsock() function no longer uses its "proto" argument, so remove it. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: use nfs client rpc callback programBenny Halevy2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | since commit ff7d9756b501744540be65e172d27ee321d86103 "nfsd: use static memory for callback program and stats" do_probe_callback uses a static callback program (NFS4_CALLBACK) rather than the one set in clp->cl_callback.cb_prog as passed in by the client in setclientid (4.0) or create_session (4.1). This patches introduces rpc_create_args.prognumber that allows overriding program->number when creating rpc_clnt. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Clean up debug messages in rpcb_clnt.cChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RPCB XDR functions are used for multiple procedures. For instance, rpcb_encode_getaddr() is used for RPCB_GETADDR, RPCB_SET, and RPCB_UNSET. Make the XDR debug messages more generic so they are less confusing. And, unlike in other RPC consumers in the kernel, a single debug flag enables all levels of debug messages in the RPC bind client, including XDR debug messages. Since the XDR decoders already report success or failure in this case, remove redundant debug messages in the mid-level rpcb_register_call() function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Fix up svc_unregister()Chuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the new rpcbind code, a PMAP_UNSET will not have any effect on services registered via rpcbind v3 or v4. Implement a version of svc_unregister() that uses an RPCB_UNSET with an empty netid string to make sure we have cleared *all* entries for a kernel RPC service when shutting down, or before starting a fresh instance of the service. Use the new version only when CONFIG_SUNRPC_REGISTER_V4 is enabled; otherwise, the legacy PMAP version is used to ensure complete backwards-compatibility with the Linux portmapper daemon. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Use short-hand IPv6 ANYADDR for RPCB_SETChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up: When doing an RPCB_SET, make the kernel's rpcb client use the shorthand "::" for the universal form of the IPv6 ANY address. Without this patch, rpcbind will advertise: 0000:0000:0000:0000:0000:0000:0000:0000.x.y This is cosmetic only. It cleans up the display of information from /sbin/rpcinfo. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Register both netids for AF_INET6 serversChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TI-RPC is a user-space library of RPC functions that replaces ONC RPC and allows RPC to operate in the new world of IPv6. TI-RPC combines the concept of a transport protocol (UDP and TCP) and a protocol family (PF_INET and PF_INET6) into a single identifier called a "netid." For example, "udp" means UDP over IPv4, and "udp6" means UDP over IPv6. For rpcbind, then, the RPC service tuple that is registered and advertised is: [RPC program, RPC version, service address and port, netid] instead of [RPC program, RPC version, port, protocol] Service address is typically ANYADDR, but can be a specific address of one of the interfaces on a multi-homed host. The third item in the new tuple is expressed as a universal address. The current Linux rpcbind implementation registers a netid for both protocol families when RPCB_SET is done for just the PF_INET6 version of the netid (ie udp6 or tcp6). So registering "udp6" causes a registration for "udp" to appear automatically as well. We've recently determined that this is incorrect behavior. In the TI-RPC world, "udp6" is not meant to imply that the registered RPC service handles requests from AF_INET as well, even if the listener socket does address mapping. "udp" and "udp6" are entirely separate capabilities, and must be registered separately. The Linux kernel, unlike TI-RPC, leverages address mapping to allow a single listener socket to handle requests for both AF_INET and AF_INET6. This is still OK, but the kernel currently assumes registering "udp6" will cover "udp" as well. It registers only "udp6" for it's AF_INET6 services, even though they handle both AF_INET and AF_INET6 on the same port. So svc_register() actually needs to register both "udp" and "udp6" explicitly (and likewise for TCP). Until rpcbind is fixed, the kernel can ignore the return code for the second RPCB_SET call. Please merge this with commit 15231312: SUNRPC: Support IPv6 when registering kernel RPC services Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Olaf Kirch <okir@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Support IPv6 when registering kernel RPC servicesChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to advertise NFS-related services on IPv6 interfaces via rpcbind, the kernel RPC server implementation must use rpcb_v4_register() instead of rpcb_register(). A new kernel build option allows distributions to use the legacy v2 call until they integrate an appropriate user-space rpcbind daemon that can support IPv6 RPC services. I tried adding some automatic logic to fall back if registering with a v4 protocol request failed, but there are too many corner cases. So I just made it a compile-time switch that distributions can throw when they've replaced portmapper with rpcbind. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Split portmap unregister API into separate functionChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a separate server-level interface for unregistering RPC services. The mechanics of, and the API for, registering and unregistering RPC services will diverge further as support for IPv6 is added. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Simplify rpcb_register() APIChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bruce suggested there's no need to expose the difference between an error sending the PMAP_SET request and an error reply from the portmapper to rpcb_register's callers. The user space equivalent of rpcb_register() is pmap_set(3), which returns a bool_t : either the PMAP set worked, or it didn't. Simple. So let's remove the "*okay" argument from rpcb_register() and rpcb_v4_register(), and simply return an error if any part of the call didn't work. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Set V6ONLY socket option for RPC listener socketsChuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My plan is to use an AF_INET listener on systems that support only IPv4, and an AF_INET6 listener on systems that can support IPv6. Incoming IPv4 packets will be posted to an AF_INET6 listener with a mapped IPv4 address. Max Matveev <makc@sgi.com> says: Creating a single listener can be dangerous - if net.ipv6.bindv6only is enabled then it's possible to create another listener in v4 namespace on the same port and steal the traffic from the "unifed" listener. You need to disable V6ONLY explicitly via a sockopt to stop that. Set appropriate socket option on RPC server listener sockets to prevent this. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Use proper INADDR_ANY when setting up RPC services on IPv6Chuck Lever2008-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Teach svc_create_xprt() to use the correct ANY address for AF_INET6 based RPC services. No caller uses AF_INET6 yet. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | SUNRPC: Add address family field to svc_serv data structureChuck Lever2008-09-29
| |/ | | | | | | | | | | | | | | | | | | Introduce and initialize an address family field in the svc_serv structure. This field will determine what family to use for the service's listener sockets and what families are advertised via the local rpcbind daemon. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | net: Rationalise email address: Network Specific PartsAlan Cox2008-10-13
| | | | | | | | | | | | | | | | | | | | Clean up the various different email addresses of mine listed in the code to a single current and valid address. As Dave says his network merges for 2.6.28 are now done this seems a good point to send them in where they won't risk disrupting real changes. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Use hton[sl]() instead of __constant_hton[sl]() where applicableArnaldo Carvalho de Melo2008-09-21
|/ | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sunrpc: fix possible overrun on read of /proc/sys/sunrpc/transportsCyrill Gorcunov2008-09-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Vegard Nossum reported ---------------------- > I noticed that something weird is going on with /proc/sys/sunrpc/transports. > This file is generated in net/sunrpc/sysctl.c, function proc_do_xprt(). When > I "cat" this file, I get the expected output: > $ cat /proc/sys/sunrpc/transports > tcp 1048576 > udp 32768 > But I think that it does not check the length of the buffer supplied by > userspace to read(). With my original program, I found that the stack was > being overwritten by the characters above, even when the length given to > read() was just 1. David Wagner added (among other things) that copy_to_user could be probably used here. Ingo Oeser suggested to use simple_read_from_buffer() here. The conclusion is that proc_do_xprt doesn't check for userside buffer size indeed so fix this by using Ingo's suggestion. Reported-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> CC: Ingo Oeser <ioe-lkml@rameria.de> Cc: Neil Brown <neilb@suse.de> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Greg Banks <gnb@sgi.com> Cc: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* svcrdma: Fix race between svc_rdma_recvfrom thread and the dto_taskletTom Tucker2008-08-13
| | | | | | | | | | | | | | | | | RDMA_READ completions are kept on a separate queue from the general I/O request queue. Since a separate lock is used to protect the RDMA_READ completion queue, a race exists between the dto_tasklet and the svc_rdma_recvfrom thread where the dto_tasklet sets the XPT_DATA bit and adds I/O to the read-completion queue. Concurrently, the recvfrom thread checks the generic queue, finds it empty and resets the XPT_DATA bit. A subsequent svc_xprt_enqueue will fail to enqueue the transport for I/O and cause the transport to "stall". The fix is to protect both lists with the same lock and set the XPT_DATA bit with this lock held. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* Merge branch 'linus' into cpus4096Ingo Molnar2008-07-28
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| * SL*B: drop kmem cache argument from constructorAlexey Dobriyan2008-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kmem cache passed to constructor is only needed for constructors that are themselves multiplexeres. Nobody uses this "feature", nor does anybody uses passed kmem cache in non-trivial way, so pass only pointer to object. Non-trivial places are: arch/powerpc/mm/init_64.c arch/powerpc/mm/hugetlbpage.c This is flag day, yes. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Jon Tollefson <kniht@linux.vnet.ibm.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Matt Mackall <mpm@selenic.com> [akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c] [akpm@linux-foundation.org: fix mm/slab.c] [akpm@linux-foundation.org: fix ubifs] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * dma-mapping: add the device argument to dma_mapping_error()FUJITA Tomonori2008-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cpumask: change cpumask_of_cpu_ptr to use new cpumask_of_cpuMike Travis2008-07-26
|/ | | | | | | | | | | * Replace previous instances of the cpumask_of_cpu_ptr* macros with a the new (lvalue capable) generic cpumask_of_cpu(). Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jack Steiner <steiner@sgi.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'linus' into cpus4096-for-linusIngo Molnar2008-07-21
|\ | | | | | | | | | | | | | | Conflicts: net/sunrpc/svc.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2008-07-21
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.27' of git://linux-nfs.org/~bfields/linux: (51 commits) nfsd: nfs4xdr.c do-while is not a compound statement nfsd: Use C99 initializers in fs/nfsd/nfs4xdr.c lockd: Pass "struct sockaddr *" to new failover-by-IP function lockd: get host reference in nlmsvc_create_block() instead of callers lockd: minor svclock.c style fixes lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_lock lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_testlock lockd: nlm_release_host() checks for NULL, caller needn't file lock: reorder struct file_lock to save space on 64 bit builds nfsd: take file and mnt write in nfs4_upgrade_open nfsd: document open share bit tracking nfsd: tabulate nfs4 xdr encoding functions nfsd: dprint operation names svcrdma: Change WR context get/put to use the kmem cache svcrdma: Create a kmem cache for the WR contexts svcrdma: Add flush_scheduled_work to module exit function svcrdma: Limit ORD based on client's advertised IRD svcrdma: Remove unused wait q from svcrdma_xprt structure svcrdma: Remove unneeded spin locks from __svc_rdma_free svcrdma: Add dma map count and WARN_ON ...
| | * Merge branch 'for-bfields' of git://linux-nfs.org/~tomtucker/xprt-switch-2.6 ↵J. Bruce Fields2008-07-03
| | |\ | | | | | | | | | | | | into for-2.6.27
| | | * svcrdma: Change WR context get/put to use the kmem cacheTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the WR context pool to be shared across mount points. This reduces the RDMA transport memory footprint significantly since idle mounts don't consume WR context memory. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Create a kmem cache for the WR contextsTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a kmem cache to hold WR contexts. Next we will convert the WR context get and put services to use this kmem cache. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Add flush_scheduled_work to module exit functionTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Make certain all transports pending free are flushed from the wq before unloading the module. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Limit ORD based on client's advertised IRDTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When adapters have differing IRD limits, the RDMA transport will fail to connect properly. The RDMA transport should use the client's advertised inbound read limit when computing its outbound read limit. For iWARP transports, there is currently no standard for exchanging IRD/ORD during connection establishment so the 'responder_resources' field in the connect event is the local device's limit. The RDMA transport can be configured to use a smaller ORD by writing the desired number to the /proc/sys/sunrpc/svc_rdma/max_outbound_read_requests file. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Remove unneeded spin locks from __svc_rdma_freeTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the time __svc_rdma_free is called, we are guaranteed that all references to this transport are gone. There is, therefore, no need to protect the resource lists with a spin lock. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Add dma map count and WARN_ONTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a dma map count in order to verify that all DMA mapping resources have been freed when the transport is closed. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Move the DMA unmap logic to the CQ handlerTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Separate DMA unmap from context destruction and perform DMA unmapping in the SQ/RQ CQ reap functions. This is necessary to support software based RDMA implementations that actually copy the data in their ib_dma_unmap callback functions and architectures that don't have cache coherent I/O busses. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Use reply and chunk map for RDMA_READ processingTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modify the RDMA_READ processing to use the reply and chunk list mapping data types. Also add a special purpose 'hdr_count' field in in the context to hold the header page count instead of overloading the SGE length field and corrupting the DMA map length. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Use RPC reply map for RDMA_WRITE processingTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new svc_rdma_req_map data type for mapping the client side memory to the server side memory. Move the DMA mapping to the context pointed to by each WR individually so that it is unmapped after the WR completes. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | | * svcrdma: Add a type for keeping NFS RPC mappingTom Tucker2008-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a new data structure to hold the remote client address space to local server address space mapping. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * | gss_krb5: Use random value to initialize confounderKevin Coffman2008-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the value used for the confounder to a random value rather than starting from zero. Allow for confounders of length 8 or 16 (which will be needed for AES). Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| | * | gss_krb5: move gss_krb5_crypto into the krb5 moduleKevin Coffman2008-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gss_krb5_crypto.o object belongs in the rpcsec_gss_krb5 module. Also, there is no need to export symbols from gss_krb5_crypto.c Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| | * | gss_krb5: create a define for token header size and clean up ptr locationKevin Coffman2008-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cleanup: Document token header size with a #define instead of open-coding it. Don't needlessly increment "ptr" past the beginning of the header which makes the values passed to functions more understandable and eliminates the need for extra "krb5_hdr" pointer. Clean up some intersecting white-space issues flagged by checkpatch.pl. This leaves the checksum length hard-coded at 8 for DES. A later patch cleans that up. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| | * | sunrpc: remove sv_kill_signal field from svc_serv structJeff Layton2008-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we no longer make any distinction between shutdown signals with nfsd, then it becomes easier to just standardize on a particular signal to use to bring it down (SIGINT, in this case). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| | * | knfsd: convert knfsd to kthread APIJeff Layton2008-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is rather large, but I couldn't figure out a way to break it up that would remain bisectable. It does several things: - change svc_thread_fn typedef to better match what kthread_create expects - change svc_pool_map_set_cpumask to be more kthread friendly. Make it take a task arg and and get rid of the "oldmask" - have svc_set_num_threads call kthread_create directly - eliminate __svc_create_thread Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| | * | knfsd: Replace lock_kernel with a mutex for nfsd thread startup/shutdown ↵Neil Brown2008-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | locking. This removes the BKL from the RPC service creation codepath. The BKL really isn't adequate for this job since some of this info needs protection across sleeps. Also, add some comments to try and clarify how the locking should work and to make it clear that the BKL isn't necessary as long as there is adequate locking between tasks when touching the svc_serv fields. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 23:19:42 -0500