Date: Fri, 28 Oct 2016 23:53:36 +0000 (UTC) From: "Conrad E. Meyer" <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r308069 - head/sys/dev/ioat Message-ID: <201610282353.u9SNra0I094354@repo.freebsd.org>
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Author: cem Date: Fri Oct 28 23:53:36 2016 New Revision: 308069 URL: https://svnweb.freebsd.org/changeset/base/308069 Log: ioat(4): Add failpoint for delay() in ioat_release Sponsored by: Dell EMC Isilon Modified: head/sys/dev/ioat/ioat.c Modified: head/sys/dev/ioat/ioat.c ============================================================================== --- head/sys/dev/ioat/ioat.c Fri Oct 28 23:53:35 2016 (r308068) +++ head/sys/dev/ioat/ioat.c Fri Oct 28 23:53:36 2016 (r308069) @@ -33,6 +33,7 @@ __FBSDID("$FreeBSD$"); #include <sys/systm.h> #include <sys/bus.h> #include <sys/conf.h> +#include <sys/fail.h> #include <sys/ioccom.h> #include <sys/kernel.h> #include <sys/lock.h> @@ -951,8 +952,12 @@ ioat_release(bus_dmaengine_t dmaengine) struct ioat_softc *ioat; ioat = to_ioat_softc(dmaengine); - CTR3(KTR_IOAT, "%s channel=%u dispatch hw_head=%u", __func__, - ioat->chan_idx, ioat->hw_head & UINT16_MAX); + CTR4(KTR_IOAT, "%s channel=%u dispatch1 hw_head=%u head=%u", __func__, + ioat->chan_idx, ioat->hw_head & UINT16_MAX, ioat->head); + KFAIL_POINT_CODE(DEBUG_FP, ioat_release, /* do nothing */); + CTR4(KTR_IOAT, "%s channel=%u dispatch2 hw_head=%u head=%u", __func__, + ioat->chan_idx, ioat->hw_head & UINT16_MAX, ioat->head); + ioat_write_2(ioat, IOAT_DMACOUNT_OFFSET, (uint16_t)ioat->hw_head); if (!ioat->is_completion_pending) {
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