Date: Fri, 11 Sep 2015 17:01:02 +0000 (UTC) From: Jim Harris <jimharris@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r287677 - stable/10/sys/dev/isci Message-ID: <201509111701.t8BH12Sm039373@repo.freebsd.org>
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Author: jimharris Date: Fri Sep 11 17:01:01 2015 New Revision: 287677 URL: https://svnweb.freebsd.org/changeset/base/287677 Log: MFC r287563: isci: explicitly enable/disable PCI busmaster BIOS always enables PCI busmaster on the isci device, which effectively worked around this omission. But when passing the isci device through to a guest VM, the hypervisor will disable busmaster and isci will not work without calling pci_enable_busmaster(). Sponsored by: Intel Modified: stable/10/sys/dev/isci/isci.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/isci/isci.c ============================================================================== --- stable/10/sys/dev/isci/isci.c Fri Sep 11 16:59:04 2015 (r287676) +++ stable/10/sys/dev/isci/isci.c Fri Sep 11 17:01:01 2015 (r287677) @@ -163,6 +163,7 @@ isci_attach(device_t device) g_isci = isci; isci->device = device; + pci_enable_busmaster(device); isci_allocate_pci_memory(isci); @@ -272,6 +273,7 @@ isci_detach(device_t device) pci_release_msi(device); } + pci_disable_busmaster(device); return (0); }
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