From: Jason Gunthorpe <jgg@nvidia.com> To: Eric Farman <farman@linux.ibm.com> Cc: David Airlie <airlied@linux.ie>, Tony Krowiak <akrowiak@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Cornelia Huck <cohuck@redhat.com>, Daniel Vetter <daniel@ffwll.ch>, dri-devel@lists.freedesktop.org, Harald Freudenberger <freude@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, Jani Nikula <jani.nikula@linux.intel.com>, Jason Herne <jjherne@linux.ibm.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, kvm@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com>, linux-s390@vger.kernel.org, Matthew Rosato <mjrosato@linux.ibm.com>, Peter Oberparleiter <oberpar@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Vineeth Vijayan <vneethv@linux.ibm.com>, Zhenyu Wang <zhenyuw@linux.intel.com>, Zhi Wang <zhi.a.wang@intel.com>, Christoph Hellwig <hch@lst.de> Subject: Re: [PATCH v2 0/9] Move vfio_ccw to the new mdev API Date: Mon, 13 Sep 2021 16:24:07 -0300 [thread overview] Message-ID: <20210913192407.GZ2505917@nvidia.com> (raw) In-Reply-To: <1e431e58465b86430d02d429c86c427f7088bf1f.camel@linux.ibm.com> On Mon, Sep 13, 2021 at 01:40:34PM -0400, Eric Farman wrote: > On Thu, 2021-09-09 at 16:38 -0300, Jason Gunthorpe wrote: > > This addresses Cornelia's remark on the earlier patch that ccw has a > > confusing lifecycle. While it doesn't seem like the original attempt > > was > > functionally wrong, the result can be made better with a lot of > > further > > work. > > I thought I'd take a stab at seeing how this works with the hardware > before looking at the code much. git couldn't apply patches 1, 6, or 9 > to 5.15-rc1, but I was able to hand-fit them into place. Oh? Thats odd, I had no remarks from git when rebasing onto v5.15-rc1.. Maybe this is a situation where you need "b4 am --prep-3way" ... > [ 64.585462] Call Trace: > [ 64.585464] [<0000000000000002>] 0x2 > [ 64.585467] ([<000003ff80179d74>] vfio_ccw_mdev_ioctl+0x84/0x318 > [vfio_ccw]) > [ 64.585476] [<00000000bb7adda6>] __s390x_sys_ioctl+0xbe/0x100 > [ 64.585481] [<00000000bbfbf5e4>] __do_syscall+0x1bc/0x1e8 > [ 64.585488] [<00000000bbfcc8d8>] system_call+0x78/0xa0 I think it is this: diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c index df1490943b20ec..5ea392959c0711 100644 --- a/drivers/s390/cio/vfio_ccw_fsm.c +++ b/drivers/s390/cio/vfio_ccw_fsm.c @@ -441,6 +441,7 @@ fsm_func_t *vfio_ccw_jumptable[NR_VFIO_CCW_STATES][NR_VFIO_CCW_EVENTS] = { [VFIO_CCW_EVENT_IO_REQ] = fsm_io_error, [VFIO_CCW_EVENT_ASYNC_REQ] = fsm_async_error, [VFIO_CCW_EVENT_INTERRUPT] = fsm_disabled_irq, + [VFIO_CCW_EVENT_OPEN] = fsm_nop, [VFIO_CCW_EVENT_CLOSE] = fsm_nop, }, [VFIO_CCW_STATE_CLOSED] = { I rebased it and fixed it up here: https://github.com/jgunthorpe/linux/tree/vfio_ccw Can you try again? Thanks, Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com> To: Eric Farman <farman@linux.ibm.com> Cc: David Airlie <airlied@linux.ie>, Tony Krowiak <akrowiak@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Cornelia Huck <cohuck@redhat.com>, Daniel Vetter <daniel@ffwll.ch>, dri-devel@lists.freedesktop.org, Harald Freudenberger <freude@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, Jani Nikula <jani.nikula@linux.intel.com>, Jason Herne <jjherne@linux.ibm.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, kvm@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com>, linux-s390@vger.kernel.org, Matthew Rosato <mjrosato@linux.ibm.com>, Peter Oberparleiter <oberpar@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Vineeth Vijayan <vneethv@linux.ibm.com>, Zhenyu Wang <zhenyuw@linux.intel.com>, Zhi Wang <zhi.a.wang@intel.com>, Christoph Hellwig <hch@lst.de> Subject: Re: [Intel-gfx] [PATCH v2 0/9] Move vfio_ccw to the new mdev API Date: Mon, 13 Sep 2021 16:24:07 -0300 [thread overview] Message-ID: <20210913192407.GZ2505917@nvidia.com> (raw) In-Reply-To: <1e431e58465b86430d02d429c86c427f7088bf1f.camel@linux.ibm.com> On Mon, Sep 13, 2021 at 01:40:34PM -0400, Eric Farman wrote: > On Thu, 2021-09-09 at 16:38 -0300, Jason Gunthorpe wrote: > > This addresses Cornelia's remark on the earlier patch that ccw has a > > confusing lifecycle. While it doesn't seem like the original attempt > > was > > functionally wrong, the result can be made better with a lot of > > further > > work. > > I thought I'd take a stab at seeing how this works with the hardware > before looking at the code much. git couldn't apply patches 1, 6, or 9 > to 5.15-rc1, but I was able to hand-fit them into place. Oh? Thats odd, I had no remarks from git when rebasing onto v5.15-rc1.. Maybe this is a situation where you need "b4 am --prep-3way" ... > [ 64.585462] Call Trace: > [ 64.585464] [<0000000000000002>] 0x2 > [ 64.585467] ([<000003ff80179d74>] vfio_ccw_mdev_ioctl+0x84/0x318 > [vfio_ccw]) > [ 64.585476] [<00000000bb7adda6>] __s390x_sys_ioctl+0xbe/0x100 > [ 64.585481] [<00000000bbfbf5e4>] __do_syscall+0x1bc/0x1e8 > [ 64.585488] [<00000000bbfcc8d8>] system_call+0x78/0xa0 I think it is this: diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c index df1490943b20ec..5ea392959c0711 100644 --- a/drivers/s390/cio/vfio_ccw_fsm.c +++ b/drivers/s390/cio/vfio_ccw_fsm.c @@ -441,6 +441,7 @@ fsm_func_t *vfio_ccw_jumptable[NR_VFIO_CCW_STATES][NR_VFIO_CCW_EVENTS] = { [VFIO_CCW_EVENT_IO_REQ] = fsm_io_error, [VFIO_CCW_EVENT_ASYNC_REQ] = fsm_async_error, [VFIO_CCW_EVENT_INTERRUPT] = fsm_disabled_irq, + [VFIO_CCW_EVENT_OPEN] = fsm_nop, [VFIO_CCW_EVENT_CLOSE] = fsm_nop, }, [VFIO_CCW_STATE_CLOSED] = { I rebased it and fixed it up here: https://github.com/jgunthorpe/linux/tree/vfio_ccw Can you try again? Thanks, Jason
next prev parent reply other threads:[~2021-09-13 19:24 UTC|newest] Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-09 19:38 [PATCH v2 0/9] Move vfio_ccw to the new mdev API Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 1/9] vfio/ccw: Use functions for alloc/free of the vfio_ccw_private Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 11:27 ` Christoph Hellwig 2021-09-10 11:27 ` Christoph Hellwig 2021-09-14 15:50 ` Cornelia Huck 2021-09-14 15:50 ` [Intel-gfx] " Cornelia Huck 2021-09-14 18:03 ` Jason Gunthorpe 2021-09-14 18:03 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 2:53 ` Eric Farman 2021-09-24 2:53 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 2/9] vfio/ccw: Pass vfio_ccw_private not mdev_device to various functions Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 11:32 ` Christoph Hellwig 2021-09-10 11:32 ` Christoph Hellwig 2021-09-20 11:12 ` Cornelia Huck 2021-09-20 11:12 ` [Intel-gfx] " Cornelia Huck 2021-09-24 2:53 ` Eric Farman 2021-09-24 2:53 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 3/9] vfio/ccw: Convert to use vfio_register_group_dev() Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 20:37 ` Eric Farman 2021-09-24 20:37 ` [Intel-gfx] " Eric Farman 2021-09-27 12:17 ` Jason Gunthorpe 2021-09-27 12:17 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 4/9] vfio/ccw: Make the FSM complete and synchronize it to the mdev Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-20 12:19 ` Cornelia Huck 2021-09-20 12:19 ` [Intel-gfx] " Cornelia Huck 2021-09-20 12:30 ` Jason Gunthorpe 2021-09-20 12:30 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 5/9] vfio/mdev: Consolidate all the device_api sysfs into the core code Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 12:10 ` Christoph Hellwig 2021-09-10 12:10 ` [Intel-gfx] " Christoph Hellwig 2021-09-10 13:38 ` Jason Gunthorpe 2021-09-10 13:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 16:09 ` Alex Williamson 2021-09-10 16:09 ` [Intel-gfx] " Alex Williamson 2021-09-09 19:38 ` [PATCH v2 6/9] vfio/mdev: Add mdev available instance checking to the core Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 12:25 ` Christoph Hellwig 2021-09-10 12:25 ` [Intel-gfx] " Christoph Hellwig 2021-09-20 18:02 ` Cornelia Huck 2021-09-20 18:02 ` [Intel-gfx] " Cornelia Huck 2021-09-21 13:19 ` Jason Gunthorpe 2021-09-21 13:19 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 2:54 ` Eric Farman 2021-09-24 2:54 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 7/9] vfio/ccw: Remove private->mdev Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 20:45 ` Eric Farman 2021-09-24 20:45 ` [Intel-gfx] " Eric Farman 2021-09-27 12:32 ` Jason Gunthorpe 2021-09-27 12:32 ` [Intel-gfx] " Jason Gunthorpe 2021-09-27 20:45 ` Eric Farman 2021-09-27 20:45 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 8/9] vfio: Export vfio_device_try_get() Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 9/9] vfio/ccw: Move the lifecycle of the struct vfio_ccw_private to the mdev Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:54 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API Patchwork 2021-09-13 17:40 ` [PATCH v2 0/9] " Eric Farman 2021-09-13 17:40 ` [Intel-gfx] " Eric Farman 2021-09-13 19:24 ` Jason Gunthorpe [this message] 2021-09-13 19:24 ` Jason Gunthorpe 2021-09-13 20:31 ` Eric Farman 2021-09-13 20:31 ` [Intel-gfx] " Eric Farman 2021-09-14 13:36 ` Jason Gunthorpe 2021-09-14 13:36 ` [Intel-gfx] " Jason Gunthorpe 2021-09-17 11:59 ` Cornelia Huck 2021-09-17 11:59 ` [Intel-gfx] " Cornelia Huck 2021-09-17 12:51 ` Jason Gunthorpe 2021-09-17 12:51 ` [Intel-gfx] " Jason Gunthorpe 2021-09-17 14:37 ` Cornelia Huck 2021-09-17 14:37 ` [Intel-gfx] " Cornelia Huck 2021-09-14 13:46 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API (rev2) Patchwork 2021-09-14 18:19 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API (rev3) Patchwork 2021-09-21 15:11 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API (rev4) Patchwork
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