Commit Graph

56 Commits

Author SHA1 Message Date
Michael S. Tsirkin
6d376756f2 [IB/mthca]: Use io_remap_pfn_range for PCI space
Use io_remap_pfn_range to remap IO pages (remap_pfn_range is for memory).

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-07-27 14:42:45 -07:00
Roland Dreier
42b1806d5c [IB/mthca]: Fix error CQ entry handling on mem-free HCAs
Fix handling of error CQ entries on mem-free HCAs: the doorbell count
is never valid so we shouldn't look at it.  This fixes problems exposed
by new HCA firmware.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2005-07-27 14:38:49 -07:00
Roland Dreier
80c8ec2c04 [PATCH] IB uverbs: add mthca user QP support
Add support for userspace queue pairs (QPs) to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:50 -07:00
Roland Dreier
74c2174e7b [PATCH] IB uverbs: add mthca user CQ support
Add support for userspace completion queues (CQs) to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:50 -07:00
Roland Dreier
24d4281be0 [PATCH] IB uverbs: add mthca user MR support
Add support for userspace memory regions (MRs) to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:49 -07:00
Roland Dreier
99264c1ee2 [PATCH] IB uverbs: add mthca user PD support
Add support for userspace protection domains (PDs) to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:49 -07:00
Roland Dreier
53b8b3ffd5 [PATCH] IB uverbs: add mthca mmap support
Add support for mmap() method to mthca, so that userspace can get access to
doorbell registers.  This allows userspace to get direct access to the HCA for
data path operations.

Each userspace context gets its own copy of the doorbell registers and is only
allowed to use resources that the kernel has given it access to.  In other
words, this is safe.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:49 -07:00
Roland Dreier
5e0b537c7d [PATCH] IB uverbs: add mthca user context support
Add support for managing userspace contexts to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:49 -07:00
Roland Dreier
56483ec1b7 [PATCH] IB uverbs: add mthca user doorbell record support
Add support for userspace doorbell records to mthca.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:49 -07:00
Roland Dreier
e95975e8b8 [PATCH] IB uverbs: add mthca ABI header
Add the mthca_user.h header file, which defines the device-specific ABI used
by the mthca low-level driver for kernel/user communication.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:49 -07:00
Roland Dreier
1cf296b66a [PATCH] IB uverbs: update mthca for new API
Update mthca to compile against the updated API for low-level drivers.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:48 -07:00
Roland Dreier
cae54bdf6f [PATCH] IB/mthca: Bump version
It's about time for a version bump.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:47 -07:00
Roland Dreier
ed878458ee [PATCH] IB/mthca: Align FW command mailboxes to 4K
Future versions of Mellanox HCA firmware will require command mailboxes to be
aligned to 4K.  Support this by using a pci_pool to allocate all mailboxes.
This has the added benefit of shrinking the source and text of 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>
2005-06-27 15:11:46 -07:00
Roland Dreier
80fd823873 [PATCH] IB/mthca: Encapsulate command interface init
Encapsulate mthca command interface initialization/cleanup.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:46 -07:00
Roland Dreier
761f9eb8c3 [PATCH] IB/mthca: Fix memory leak on error path
Free page_list buffer on error path of mthca_reg_phys_mr().

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:46 -07:00
Roland Dreier
d56d6f9502 [PATCH] IB/mthca: Split off MTT allocation
Split allocation of MTT range from creation of MR.  This will be useful for
implementing shared memory regions and userspace verbs.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:46 -07:00
Roland Dreier
a03a5a67b2 [PATCH] IB/mthca: Move mthca_is_memfree checks
Make mthca_table_put() and mthca_table_put_range() NOPs if the device is not
mem-free, so that we don't have to have "if (mthca_is_memfree())" tests in the
callers of these functions.  This makes our code more readable and
maintainable, and saves a couple dozen bytes of text in ib_mthca.ko as well.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:45 -07:00
Roland Dreier
a852092e8c [PATCH] IB/mthca: Fix memset size
Fix memset to use sizeof *props instead of just sizeof props.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:45 -07:00
Roland Dreier
9e6970b5e9 [PATCH] IB/mthca: Enable unreliable connected transport
Add support for unreliable connected (UC) transport to mthca driver:
 - Add attributes for UC to modify QP table.
 - Add support for posting UC work requests.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:45 -07:00
Roland Dreier
34a4a753d1 [PATCH] IB/mthca: Set RDMA/atomic capabilities correctly
mthca apparently had the meanings of the max_rd_atomic and max_dest_rd_atomic
QP attributes backwards.  max_rd_atomic limits the maximum number of
outstanding RDMA/atomic requests as an initiator (on a send queue), and
max_dest_rd_atomic specifies the resources allocated to handle RMDA/atomic
requests from the remote end of the connection.  We were programming our QP
context with these values swapped.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:45 -07:00
Roland Dreier
cd123d7fcf [PATCH] IB/mthca: Set QP static rate correctly
Fix offset of static_rate in QP context.  Pointed out by Dror Goldenberg.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:45 -07:00
Roland Dreier
64dc81fca7 [PATCH] IB/mthca: Use dma_alloc_coherent instead of pci_alloc_consistent
Switch all allocations of coherent memory from pci_alloc_consistent() to
dma_alloc_coherent(), so that we can pass GFP_KERNEL.  This should help when
the system is low on memory.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:44 -07:00
Roland Dreier
bb2af78bcd [PATCH] IB/mthca: Clean up CQ debug
Clean up CQ debugging code: make dump_cqe print on one line, and only dump
error CQ entries for local operation errors.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:44 -07:00
Bernhard Fischer
177214af29 [PATCH] IB/mthca: Clean up error messages
- Fix incorrect cut-n-paste in error messages.
- Add missing newlines in error messages.
- Use DRV_NAME instead of "ib_mthca" in a couple of places.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:11:44 -07:00
Tom Duffy
cd4e8fb49d [PATCH] IB/mthca: Add Sun copyright notice
Add Sun copyright to files modified by Tom Duffy.

Signed-off-by: Tom Duffy <tduffy@sun.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>
2005-06-27 15:11:44 -07:00
Roland Dreier
dbcf31ba68 [PATCH] fix include order in mthca_memfree.c
Fix order of #include lines in mthca_memfree.c

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:14 -07:00
Al Viro
fdca124a1b [PATCH] missing include in mthca
Missing include - usual portability problems...

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-24 12:28:36 -07:00
Roland Dreier
19272d4385 [PATCH] drivers/infiniband/hw/mthca/mthca_main.c: remove an unused label
Correct unwinding in error path of mthca_init_icm().

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:26:35 -07:00
Roland Dreier
68a3c21203 [PATCH] IB/mthca: add support for new MT25204 HCA
Decouple table of HCA features from exact HCA device type.  Add a current FW
version field so we can warn when someone is using old FW.  Add support for
new MT25204 HCA.

Remove the warning about mem-free support, since it should be pretty solid at
this point.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:26:34 -07:00
Roland Dreier
08aeb14e5f [PATCH] IB/mthca: map context for RDMA responder in mem-free mode
Fix RDMA in mem-free mode: we need to make sure that the RDMA context memory
is mapped for the HCA.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:26:34 -07:00
Roland Dreier
ddf841f052 [PATCH] IB/mthca: update receive queue initialization for new HCAs
Update initialization of receive queue to match new documentation.  This
change is required to support new MT25204 HCA.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:26:33 -07:00
Roland Dreier
d10ddbf6d7 [PATCH] IB/mthca: encapsulate mem-free check into mthca_is_memfree()
Clean up mem-free mode support by introducing mthca_is_memfree() function,
which encapsulates the logic of deciding if a device is mem-free.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:26:32 -07:00
Roland Dreier
6bd6228eed [PATCH] IB/mthca: tweaks to mthca_cmd.c
Minor tweaks to firmware command handling: kill off an unused get of a value,
and add a little more info to debug output.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:26:31 -07:00
Michael S. Tsirkin
e0f5fdca1c [PATCH] IB/mthca: add fast memory region implementation
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>
2005-04-16 15:26:30 -07:00
Michael S. Tsirkin
d0a9d25cdc [PATCH] IB/mthca: split MR key munging routines
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>
2005-04-16 15:26:30 -07:00
Michael S. Tsirkin
0fabd9fb7b [PATCH] IB/mthca: add mthca_table_find() function
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>
2005-04-16 15:26:29 -07:00
Michael S. Tsirkin
b8ca06f674 [PATCH] IB/mthca: add SYNC_TPT firmware command
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>
2005-04-16 15:26:28 -07:00
Michael S. Tsirkin
ef416a33ac [PATCH] IB/mthca: add mthca_write64_raw() for writing to MTT table directly
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>
2005-04-16 15:26:27 -07:00
Michael S. Tsirkin
9095e208d8 [PATCH] IB/mthca: encapsulate MTT buddy allocator
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>
2005-04-16 15:26:26 -07:00
Roland Dreier
8df8a34de6 [PATCH] IB/mthca: allow address handle creation in interrupt context
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>
2005-04-16 15:26:26 -07:00
Michael S. Tsirkin
2a4443a699 [PATCH] IB/mthca: fill in opcode field for send completions
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>
2005-04-16 15:26:25 -07:00
Roland Dreier
44ea66879d [PATCH] IB/mthca: fix MTT allocation in mem-free mode
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>
2005-04-16 15:26:24 -07:00
Roland Dreier
ddb934e0ee [PATCH] IB/mthca: implement RDMA/atomic operations for mem-free mode
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>
2005-04-16 15:26:23 -07:00
Roland Dreier
b87dcfbace [PATCH] IB/mthca: fix format of CQ number for CQ events
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>
2005-04-16 15:26:22 -07:00
Roland Dreier
b635fa2151 [PATCH] IB/mthca: only free doorbell records in mem-free mode
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>
2005-04-16 15:26:21 -07:00
Roland Dreier
4ad81174ed [PATCH] IB/mthca: print assigned IRQ when interrupt test fails
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>
2005-04-16 15:26:21 -07:00
Roland Dreier
2714eb5a4f [PATCH] IB/mthca: release mutex on doorbell alloc error path
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>
2005-04-16 15:26:20 -07:00
Michael S. Tsirkin
55645e9b0a [PATCH] IB/mthca: fix MR allocation error path
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>
2005-04-16 15:26:19 -07:00
Roland Dreier
85665c9816 [PATCH] IB/mthca: allocate correct number of doorbell pages
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>
2005-04-16 15:26:18 -07:00
Roland Dreier
e464b2a6c2 [PATCH] IB/mthca: clean up mthca_dereg_mr()
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>
2005-04-16 15:26:17 -07:00