kernel.git/drivers/infiniband/hw, branch linux-2.6.34.y

RDMA/cxgb3: Turn off RX coalescing for iWARP connections

2011-01-06T23:08:07Z

commit bec658ff31453a5726b1c188674d587a5d40c482 upstream. The HW by default has RX coalescing on. For iWARP connections, this causes a 100ms delay in connection establishement due to the ingress MPA Start message being stalled in HW. So explicitly turn RX coalescing off when setting up iWARP connections. This was causing very bad performance for NP64 gather operations using Open MPI, due to the way it sets up connections on larger jobs. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier Signed-off-by: Paul Gortmaker

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

2010-04-09T18:53:06Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/mlx4: Check correct variable for allocation failure RDMA/nes: Correct cap.max_inline_data assignment in nes_query_qp() RDMA/cm: Set num_paths when manually assigning path records IB/cm: Fix device_create() return value check

Merge branches 'cma', 'misc', 'mlx4' and 'nes' into for-linus

2010-04-09T16:14:21Z

IB/mlx4: Check correct variable for allocation failure

2010-04-07T21:18:14Z

The intent here is to check the "mfrpl->mapped_page_list" allocation. We checked "mfrpl->ibfrpl.page_list" earlier. Signed-off-by: Dan Carpenter Signed-off-by: Roland Dreier

RDMA/nes: Correct cap.max_inline_data assignment in nes_query_qp()

2010-04-07T21:16:08Z

cap.max_inline_data is incorrectly set in init_attr instead of attr. Set it in attr so subsequent init_attr.cap assignment will get the correct value. Signed-off-by: Chien Tung Signed-off-by: Roland Dreier

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

2010-03-13T22:38:31Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: RDMA/nes: Fix CX4 link problem in back-to-back configuration RDMA/nes: Clear stall bit before destroying NIC QP RDMA/nes: Set assume_aligned_header bit RDMA/cxgb3: Wait at least one schedule cycle during device removal IB/mad: Ignore iWARP devices on device removal IPoIB: Include return code in trace message for ib_post_send() failures IPoIB: Fix TX queue lockup with mixed UD/CM traffic

Merge branches 'cxgb3', 'ipoib', 'misc' and 'nes' into for-next

2010-03-12T18:54:20Z

RDMA/nes: Fix CX4 link problem in back-to-back configuration

2010-03-12T18:54:11Z

Commit 09124e19 ("RDMA/nes: Add support for KR device id 0x0110") took out too much code and broke CX4 link detection in back-to-back configuration. Put back the code that does the link check. Signed-off-by: Chien Tung Signed-off-by: Roland Dreier

RDMA/nes: Clear stall bit before destroying NIC QP

2010-03-11T23:12:15Z

Clear the stall bit to drop any incoming packets while destroying NIC QP. This will prevent a chip resource leak. Signed-off-by: Chien Tung Signed-off-by: Roland Dreier