diff options
| author | Bryan O'Sullivan <bos@pathscale.com> | 2006-07-01 04:36:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-01 09:56:00 -0700 |
| commit | f37bda92461313ad3bbfbf5660adc849c69718bf (patch) | |
| tree | a5fe4737ca6b8fcbe2cf9b58466d6340ee12fe56 /drivers/infiniband/hw/ipath/ipath_common.h | |
| parent | 06993ca6bc46419027b45198a58447f4f05c14f6 (diff) | |
| download | blackbird-op-linux-f37bda92461313ad3bbfbf5660adc849c69718bf.tar.gz blackbird-op-linux-f37bda92461313ad3bbfbf5660adc849c69718bf.zip | |
[PATCH] IB/ipath: memory management cleanups
Made in-memory rcvhdrq tail update be in dma_alloc'ed memory, not random user
or special kernel (needed for ppc, also "just the right thing to do").
Some cleanups to make unexpected link transitions less likely to produce
complaints about packet errors, and also to not leave SMA packets stuck and
unable to go out.
A few other random debug and comment cleanups.
Always init rcvhdrq head/tail registers to 0, to avoid race conditions (should
have been that way some time ago).
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_common.h')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_common.h | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h index 9b6ec76c118e..3a849e71638e 100644 --- a/drivers/infiniband/hw/ipath/ipath_common.h +++ b/drivers/infiniband/hw/ipath/ipath_common.h @@ -311,6 +311,9 @@ struct ipath_base_info { __u32 spi_rcv_egrchunksize; /* total size of mmap to cover full rcvegrbuffers */ __u32 spi_rcv_egrbuftotlen; + __u32 spi_filler_for_align; + /* address of readonly memory copy of the rcvhdrq tail register. */ + __u64 spi_rcvhdr_tailaddr; } __attribute__ ((aligned(8))); @@ -380,13 +383,7 @@ struct ipath_user_info { */ __u32 spu_rcvhdrsize; - /* - * cache line aligned (64 byte) user address to - * which the rcvhdrtail register will be written by infinipath - * whenever it changes, so that no chip registers are read in - * the performance path. - */ - __u64 spu_rcvhdraddr; + __u64 spu_unused; /* kept for compatible layout */ /* * address of struct base_info to write to |
