Arthur Kepner 1f5c23e2c1 IB/mthca: Use mmiowb after doorbell ring ... We discovered a problem when running IPoIB applications on multiple CPUs on an Altix system. Many messages such as: ib_mthca 0002:01:00.0: SQ 000014 full (19941644 head, 19941707 tail, 64 max, 0 nreq) appear in syslog, and the driver wedges up. Apparently this is because writes to the doorbells from different CPUs reach the device out of order. The following patch adds mmiowb() calls after doorbell rings to ensure the doorbell writes are ordered. Signed-off-by: Arthur Kepner <akepner@sgi.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>		2006-10-16 20:22:35 -07:00
..
core	IB/cm: Send DREP in response to unmatched DREQ	2006-10-10 12:50:38 -07:00
hw	IB/mthca: Use mmiowb after doorbell ring	2006-10-16 20:22:35 -07:00
ulp	IPoIB: Check for DMA mapping error for TX packets	2006-10-10 12:50:38 -07:00
Kconfig
Makefile