linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2013-02-27	IB/cxgb3: convert to idr_alloc()	Tejun Heo	1	-13/+11
	Convert to the much saner new idr interface. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-24	RDMA/cxgb3: Doorbell overflow avoidance and recovery	Steve Wise	1	-0/+2
	T3 hardware doorbell FIFO overflows can cause application stalls due to lost doorbell ring events. This has been seen when running large NP IMB alltoall MPI jobs. The T3 hardware supports an xon/xoff-type flow control mechanism to help avoid overflowing the HW doorbell FIFO. This patch uses these interrupts to disable RDMA QP doorbell rings when we near an overflow condition, and then turn them back on (and ring all the active QP doorbells) when when the doorbell FIFO empties out. In addition if an doorbell ring is dropped by the hardware, the code will now recover. Design: cxgb3: - enable these DB interrupts - in the interrupt handler, schedule work tasks to call the ULPs event handlers with the new events. - ring all the qset txqs when an overflow is detected. iw_cxgb3: - disable db ringing on all active qps when we get the DB_FULL event - enable db ringing on all active qps and ring all active dbs when we get the DB_EMPTY event - On DB_DROP event: - disable db rings in the event handler - delay-schedule a work task which rings and enables the dbs on all active qps. - in post_send and post_recv logic, don't ring the db if it's disabled. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-03-30	RDMA/cxgb3: Handle EEH events	Steve Wise	1	-0/+5
	- wrap calls into cxgb3 and fail them if we're in the middle of a PCI EEH event. - correctly unwind and release endpoint and other resources when we are in an EEH event. - dispatch IB_EVENT_DEVICE_FATAL event when cxgb3 notifies iw_cxgb3 of a fatal error. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-14	RDMA/cxgb3: Remove write-only iwch_rnic_attributes fields	Roland Dreier	1	-2/+0
	The members struct iwch_rnic_attributes.vendor_id and .vendor_part_id are write-only, so we might as well get rid of them. Signed-off-by: Roland Dreier <rolandd@cisco.com> Acked-by: Steve Wise <swise@opengridcomputing.com>
2008-04-29	RDMA/cxgb3: Set the max_mr_size device attribute correctly	Steve Wise	1	-0/+1
	cxgb3 only supports 4GB memory regions. The lustre RDMA code uses this attribute and currently has to code around our bad setting. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-04-16	RDMA/cxgb3: IDR IDs are signed	Roland Dreier	1	-1/+1
	Fix sparse warnings about pointer signedness by using a signed int when calling idr_get_new_above(). Signed-off-by: Roland Dreier <rolandd@cisco.com> Acked-by: Steve Wise <swise@opengridcomputing.com>
2007-02-16	RDMA/cxgb3: Remove Open Grid Computing copyrights in iw_cxgb3 driver	Steve Wise	1	-1/+0
	Remove the Open Grid Computing copyright. It shouldn't be there. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-02-12	RDMA/cxgb3: Add driver for Chelsio T3 RNIC	Steve Wise	1	-0/+177
	Add an RDMA/iWARP driver for the Chelsio T3 1GbE and 10GbE adapters. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>