search for: mic_send_intr

...@@ -154,14 +154,14 @@ static void mic_reset_inform_host(struct virtio_device *vdev) { struct mic_vdev *mvdev = to_micvdev(vdev); struct mic_device_ctrl __iomem *dc = mvdev->dc; - int retry = 100, i; + int retry; iowrite8(0, &dc->host_ack); iowrite8(1, &dc->vdev_reset); mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); /* Wait till host completes all card accesses and acks the reset */ - for (i = retry; i--;) { + for (retry = 100; retry--;) { if (ioread8(&dc->host_ack)) break; msleep(100); @@ -310,7 +310,7 @@ static int mic_find_vqs(struct virtio_device...

..._status(struct virtio_device *vdev) +{ + return ioread8(&to_micvdev(vdev)->desc->status); +} + +static void mic_set_status(struct virtio_device *vdev, u8 status) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + if (!status) + return; + iowrite8(status, &mvdev->desc->status); + mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); +} + +/* Inform host on a virtio device reset and wait for ack from host */ +static void mic_reset_inform_host(struct virtio_device *vdev) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + struct mic_device_ctrl __iomem *dc = mvdev->dc; + int retry = 100,...

..._status(struct virtio_device *vdev) +{ + return ioread8(&to_micvdev(vdev)->desc->status); +} + +static void mic_set_status(struct virtio_device *vdev, u8 status) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + if (!status) + return; + iowrite8(status, &mvdev->desc->status); + mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); +} + +/* Inform host on a virtio device reset and wait for ack from host */ +static void mic_reset_inform_host(struct virtio_device *vdev) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + struct mic_device_ctrl __iomem *dc = mvdev->dc; + int retry = 100,...

...tio.c @@ -187,11 +187,12 @@ static void mic_reset(struct virtio_device *vdev) /* * The virtio_ring code calls this API when it wants to notify the Host. */ -static void mic_notify(struct virtqueue *vq) +static bool mic_notify(struct virtqueue *vq) { struct mic_vdev *mvdev = vq->priv; mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); + return true; } static void mic_del_vq(struct virtqueue *vq, int n) -- 1.8.2.3

These patches fix various issues which were reported or found with the MIC driver. Changelog ========= v2 => v3: * Reorder patch 5 in v2 to patch 4 in v3. * Split patch 4 in v2 into patches 5 and 6 in v3. v1 => v2: @ https://lkml.org/lkml/2013/11/26/376 * Address review comments @ https://lkml.org/lkml/2013/11/26/443 in patch 5. v1: Initial post @ https://lkml.org/lkml/2013/11/26/321

These patches fix various issues which were reported or found with the MIC driver. Changelog ========= v2 => v3: * Reorder patch 5 in v2 to patch 4 in v3. * Split patch 4 in v2 into patches 5 and 6 in v3. v1 => v2: @ https://lkml.org/lkml/2013/11/26/376 * Address review comments @ https://lkml.org/lkml/2013/11/26/443 in patch 5. v1: Initial post @ https://lkml.org/lkml/2013/11/26/321

These patches fix various issues which were reported or found with the MIC driver. Ashutosh Dixit (3): misc: mic: Bug fix for sysfs poll usage. misc: mic: Fix sparse warnings and other endianness issues. misc: mic: Fix user space namespace pollution from mic_common.h. Sudeep Dutt (2): misc: mic: Change mic_notify(...) to return true. misc: mic: Minor bug fix in 'retry' loops.

These patches fix various issues which were reported or found with the MIC driver. Ashutosh Dixit (3): misc: mic: Bug fix for sysfs poll usage. misc: mic: Fix sparse warnings and other endianness issues. misc: mic: Fix user space namespace pollution from mic_common.h. Sudeep Dutt (2): misc: mic: Change mic_notify(...) to return true. misc: mic: Minor bug fix in 'retry' loops.

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

...__, d); + __func__, __LINE__, d); if (!remove) mic_add_device(d, i, mdrv); } diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c index 7cb3469..e54dfcb 100644 --- a/drivers/misc/mic/card/mic_x100.c +++ b/drivers/misc/mic/card/mic_x100.c @@ -66,8 +66,8 @@ void mic_send_intr(struct mic_device *mdev, int doorbell) /* Ensure that the interrupt is ordered w.r.t previous stores. */ wmb(); mic_mmio_write(mw, MIC_X100_SBOX_SDBIC0_DBREQ_BIT, - MIC_X100_SBOX_BASE_ADDRESS + - (MIC_X100_SBOX_SDBIC0 + (4 * doorbell))); + MIC_X100_SBOX_BASE_ADDRESS + + (MIC...