30 Nov, 2006
1 commit
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The ib_cm_establish() function is replaced with a more generic
ib_cm_notify(). This routine is used to notify the CM that failover
has occurred, so that future CM messages (LAP, DREQ) reach the remote
CM. (Currently, we continue to use the original path) This bumps the
userspace CM ABI.New alternate path information is captured when a LAP message is sent
or received. This allows QP attributes to be initialized for the user
when a new path is loaded after failover occurs.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier
03 Nov, 2006
1 commit
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Require registration with ib_addr module to prevent caller from
unloading while a callback is in progress.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier
31 Oct, 2006
1 commit
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Return the sq_draining value back to user space for query_qp instead
of the en_sqd_async notify value, which is valid only for
modify_qp. For query_qp, the draining status should returned.Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier
23 Sep, 2006
8 commits
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Relevant SA queries are actually "greater than" / "less than", not
"greater than or equal" / "less than or equal" as the names imply.
(See IB spec 1.2 Vol 1, 15.2.5.16 PATHRECORD/Table 205 PathRecord)Signed-off-by: Michael S. Tsirkin
Signed-off-by: Roland Dreier -
Document the reject sending and modifying QP to error done in rdma_accept().
Signed-off-by: Or Gerlitz
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Clarify that rdma_destroy_id cancels outstanding asynchronous operations on the
Associated id.Signed-off-by: Or Gerlitz
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Require users to register with SA module, to prevent the sa_query
module text from going away while an SA query callback is still
running. Update all in-tree users for the new interface.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Modifications to the existing rdma header files, core files, drivers,
and ulp files to support iWARP, including:
- Hook iWARP CM into the build system and use it in rdma_cm.
- Convert enum ib_node_type to enum rdma_node_type, which includes
the possibility of RDMA_NODE_RNIC, and update everything for this.Signed-off-by: Tom Tucker
Signed-off-by: Steve Wise
Signed-off-by: Roland Dreier -
Add an iWARP Connection Manager (CM), which abstracts connection
management for iWARP devices (RNICs). It is a logical instance of the
xx_cm where xx is the transport type (ib or iw). The symbols exported
are used by the transport independent rdma_cm module, and are
available also for transport dependent ULPs.Signed-off-by: Tom Tucker
Signed-off-by: Steve Wise
Signed-off-by: Roland Dreier -
Pass a struct ib_udata to the low-level driver's ->modify_srq() and
->modify_qp() methods, so that it can get to the device-specific data
passed in by the userspace driver.Signed-off-by: Ralph Campbell
Signed-off-by: Roland Dreier -
Add a ib_uverbs_resize_cq_resp.driver_data field so that low-level
drivers can return data from a resize CQ operation to userspace. Have
ib_uverbs_resize_cq() only copy the cqe field, to avoid having to bump
the userspace ABI.Signed-off-by: Ralph Campbell
Signed-off-by: Roland Dreier
19 Sep, 2006
1 commit
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Signed-off-by: David Woodhouse
25 Jul, 2006
1 commit
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Validate MADs sent by userspace clients for spec compliance with
C13-18.1.1 (prevent duplicate requests and responses sent on the
same port). Without this, RMPP transactions get aborted because
of duplicate packets.This patch is similar to that provided by Jack Morgenstein.
Signed-off-by: Sean Hefty
Signed-off-by: Michael S. Tsirkin
Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier
15 Jul, 2006
2 commits
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ib_fmr_pool_map_phys gets the virtual address by pointer but never writes
there, and users (e.g. srp) seem to assume this and ignore the value
returned. This patch cleans up the API to get the VA by value, and updates
all users.Signed-off-by: Michael S. Tsirkin
Acked-by: Roland Dreier
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The device address contains unsigned character arrays, which contain raw GID
addresses. The GIDs may not be naturally aligned, so do not cast them to
structures or unions.Signed-off-by: Sean Hefty
Signed-off-by: Michael S. Tsirkin
Cc: Roland Dreier
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Jul, 2006
1 commit
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* git://git.infradead.org/hdrinstall-2.6:
Remove export of include/linux/isdn/tpam.h
Remove and from userspace export
Restrict headers exported to userspace for SPARC and SPARC64
Add empty Kbuild files for 'make headers_install' in remaining arches.
Add Kbuild file for Alpha 'make headers_install'
Add Kbuild file for SPARC 'make headers_install'
Add Kbuild file for IA64 'make headers_install'
Add Kbuild file for S390 'make headers_install'
Add Kbuild file for i386 'make headers_install'
Add Kbuild file for x86_64 'make headers_install'
Add Kbuild file for PowerPC 'make headers_install'
Add generic Kbuild files for 'make headers_install'
Basic implementation of 'make headers_check'
Basic implementation of 'make headers_install'
18 Jun, 2006
12 commits
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This adds the Kbuild files listing the files which are to be installed by
the 'headers_install' make target, in generic directories.Signed-off-by: David Woodhouse
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Currently, all userspace verbs operations that call into the kernel
are serialized by ib_uverbs_idr_mutex. This can be a scalability
issue for some workloads, especially for devices driven by the ipath
driver, which needs to call into the kernel even for datapath
operations.Fix this by adding reference counts to the userspace objects, and then
converting ib_uverbs_idr_mutex into a spinlock that only protects the
idrs long enough to take a reference on the object being looked up.
Because remove operations may fail, we have to do a slightly funky
two-step deletion, which is described in the comments at the top of
uverbs_cmd.c.This also still leaves ib_uverbs_idr_lock as a single lock that is
possibly subject to contention. However, the lock hold time will only
be a single idr operation, so multiple threads should still be able to
make progress, even if ib_uverbs_idr_lock is being ping-ponged.Surprisingly, these changes even shrink the object code:
add/remove: 23/5 grow/shrink: 4/21 up/down: 633/-693 (-60)
Signed-off-by: Roland Dreier
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Add a call to initialize address handle attributes given a path record.
This is used by the CM, and would be useful for users of UD QPs.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Add a function to initialize address handle attributes from a work
completion. This functionality is duplicated by both verbs and the CM.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
The P_Key is provided into a SIDR REQ in two places, once as a
parameter, and again in the path record. Remove the P_Key as a
parameter and always use the one given in the path record.This change has no practical effect on ABI functionality.
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Move ipath's struct port_info into , so that it can be
used by mthca to implement client reregister support.Remove the __attribute__((packed)) because all the members of the struct
are naturally aligned anyway.Signed-off-by: Leonid Arsh
Signed-off-by: Roland Dreier -
Add IB_EVENT_CLIENT_REREGISTER to enum so low-level drivers can
generate "client reregister" events.Signed-off-by: Leonid Arsh
Signed-off-by: Roland Dreier -
Add an LMC cache to struct ib_device, and add a function
ib_get_cached_lmc() to query the cache.Signed-off-by: Jack Morgenstein
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Kernel connection management agent over InfiniBand that connects based
on IP addresses. The agent defines a generic RDMA connection
abstraction to support clients wanting to connect over different RDMA
devices.The agent also handles RDMA device hotplug events on behalf of clients.
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Add an address translation service that maps IP addresses to
InfiniBand GID addresses using IPoIB.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Extend matching connection requests to listens in the InfiniBand CM to
include private data checks.This allows applications to listen on the same service identifier,
with private data directing the request to the appropriate application.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Provide common handling for marshalling data between userspace clients
and kernel InfiniBand drivers.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier
11 Apr, 2006
1 commit
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Push translation of static rate to HCA format into low-level drivers,
where it belongs. For static rate encoding, use encoding of rate
field from IB standard PathRecord, with addition of value 0, for
backwards compatibility with current usage. The changes are:- Add enum ib_rate to midlayer includes.
- Get rid of static rate translation in IPoIB; just use static rate
directly from Path and MulticastGroup records.
- Update mthca driver to translate absolute static rate into the
format used by hardware. This also fixes mthca's static rate
handling for HCAs that are capable of 4X DDR.Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier
30 Mar, 2006
1 commit
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Add RMPP support for additional management classes that support it.
Also, validate RMPP is consistent with management class specified.Signed-off-by: Hal Rosenstock
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier
21 Mar, 2006
10 commits
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Add support for sending and receiving large RMPP transfers. The old
code supports transfers only as large as a single contiguous kernel
memory allocation. This patch uses linked list of memory buffers when
sending and receiving data to avoid needing contiguous pages for
larger transfers.Receive side: copy the arriving MADs in chunks instead of coalescing
to one large buffer in kernel space.Send side: split a multipacket MAD buffer to a list of segments,
(multipacket_list) and send these using a gather list of size 2.
Also, save pointer to last sent segment, and retrieve requested
segments by walking list starting at last sent segment. Finally,
save pointer to last-acked segment. When retrying, retrieve
segments for resending relative to this pointer. When updating last
ack, start at this pointer.Signed-off-by: Jack Morgenstein
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Pass actual capacity of created SRQ back to userspace, so that
userspace can report accurate capacities. This requires an ABI bump,
to change struct ib_uverbs_create_srq_resp.Signed-off-by: Dotan Barak
Signed-off-by: Roland Dreier -
Have mthca's create_srq method return the actual capacity of the SRQ
that gets created. Also update comments in to
clarify that this is what is expected from ib_create_srq().Signed-off-by: Dotan Barak
Signed-off-by: Roland Dreier -
The size of struct ib_uverbs_create_qp_resp is not even multiple of 8
bytes. This causes problems for low-level drivers that add private
data after the structure: 32-bit userspace will look in the wrong
place for a response from a 64-bit kernel. Fix this by adding a
reserved field. Also, bump the ABI version because this changes the
size of a structure.Pointed out by Hoang-Nam Nguyen .
Signed-off-by: Roland Dreier
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Add support to uverbs to handle querying userspace SRQs (shared
receive queues), including adding an ABI for marshalling requests and
responses. The kernel midlayer already has the underlying
ib_query_srq() function.Signed-off-by: Dotan Barak
Signed-off-by: Roland Dreier -
Add support to uverbs to handle querying userspace QPs (queue pairs),
including adding an ABI for marshalling requests and responses. The
kernel midlayer already has the underlying ib_query_qp() function.Signed-off-by: Dotan Barak
Signed-off-by: Roland Dreier -
Remove trailing whitespace and fix indentation that with spaces
instead of tabs.Signed-off-by: Roland Dreier
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The in-kernel mthca driver contains a table of which attributes are
valid for each queue pair state transition. It turns out that both
other IB drivers -- ipath and ehca -- which are being prepared for
merging have copied this table, errors and all.To forestall this code duplication, move this table and the code to
check parameters against it into a midlayer library function,
ib_modify_qp_is_ok().Signed-off-by: Roland Dreier
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This patch allows the consumer to set the page size of "pages" mapped
by the pool FMRs, which is a feature already existing in the base
verbs API. On the cosmetic side it changes ib_fmr_attr.page_size field
to be named page_shift.Signed-off-by: Or Gerlitz
Signed-off-by: Roland Dreier -
Expose a writable "node_desc" sysfs attribute for InfiniBand devices.
This allows userspace to update the node description with information
such as the node's hostname, so that IB network management software
can tie its view to the real world.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Roland Dreier
