From 60e845035a066e81af1a29047530088d59150d8b Mon Sep 17 00:00:00 2001 From: Dave Olson Date: Fri, 5 Dec 2008 11:13:19 -0800 Subject: IB/ipath: Don't count IB symbol and link errors unless link is UP Implement the ignoring of ibsymbol errors and linkrecover errors while the link is at less than INIT (long needed), to get accurate counts. Particularly an issue when doing non-IBTA DDR negotiation with chips from vendors that do not support IBTA mode negotiation. If the driver is unloaded, and there is a delta, the adjusted counters are written back to the chip, so they stay adjusted across driver reload. Signed-off-by: Dave Olson Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_kernel.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/infiniband/hw/ipath/ipath_kernel.h') diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 0bd8bcb184a..aa84153b731 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -355,6 +355,19 @@ struct ipath_devdata { /* errors masked because they occur too fast */ ipath_err_t ipath_maskederrs; u64 ipath_lastlinkrecov; /* link recoveries at last ACTIVE */ + /* these 5 fields are used to establish deltas for IB Symbol + * errors and linkrecovery errors. They can be reported on + * some chips during link negotiation prior to INIT, and with + * DDR when faking DDR negotiations with non-IBTA switches. + * The chip counters are adjusted at driver unload if there is + * a non-zero delta. + */ + u64 ibdeltainprog; + u64 ibsymdelta; + u64 ibsymsnap; + u64 iblnkerrdelta; + u64 iblnkerrsnap; + /* time in jiffies at which to re-enable maskederrs */ unsigned long ipath_unmasktime; /* count of egrfull errors, combined for all ports */ -- cgit v1.2.3