search for: mic_map_single

...mutex_lock(&mdev->mic_mutex); @@ -559,17 +560,16 @@ int mic_virtio_add_device(struct mic_vdev *mvdev, } vr->len = vr_size; vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); - vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; - vqconfig[i].address = mic_map_single(mdev, - vr->va, vr_size); - if (mic_map_error(vqconfig[i].address)) { + vr->info->magic = cpu_to_le32(MIC_MAGIC + mvdev->virtio_id + i); + vr_addr = mic_map_single(mdev, vr->va, vr_size); + if (mic_map_error(vr_addr)) { free_pages((unsigned long)vr->va, get_order(vr_size...

...mutex_lock(&mdev->mic_mutex); @@ -559,17 +560,16 @@ int mic_virtio_add_device(struct mic_vdev *mvdev, } vr->len = vr_size; vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); - vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; - vqconfig[i].address = mic_map_single(mdev, - vr->va, vr_size); - if (mic_map_error(vqconfig[i].address)) { + vr->info->magic = cpu_to_le32(MIC_MAGIC + mvdev->virtio_id + i); + vr_addr = mic_map_single(mdev, vr->va, vr_size); + if (mic_map_error(vr_addr)) { free_pages((unsigned long)vr->va, get_order(vr_size...

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.

...gt;entry[i].ref_count < 0) dev_warn(mdev->sdev->parent, - "ref count for entry %d is negative\n", i); + "ref count for entry %d is negative\n", i); } spin_unlock_irqrestore(&smpt_info->smpt_lock, flags); kfree(ref); @@ -319,8 +319,8 @@ dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size) dev_err(mdev->sdev->parent, "mic_map failed dma_addr 0x%llx size 0x%lx\n", dma_addr, size); - pci_unmap_single(pdev, dma_addr, - size, PCI_DMA_BIDIRECTIONAL); + pci_unmap_single(pdev, dma_addr, size, + PCI_DMA...

...alize the device page */ +static int mic_dp_init(struct mic_device *mdev) +{ + mdev->dp = kzalloc(MIC_DP_SIZE, GFP_KERNEL); + if (!mdev->dp) { + dev_err(&mdev->pdev->dev, "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + + mdev->dp_dma_addr = mic_map_single(mdev, + mdev->dp, MIC_DP_SIZE); + if (mic_map_error(mdev->dp_dma_addr)) { + kfree(mdev->dp); + dev_err(&mdev->pdev->dev, "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr...

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: ========= 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)

...tialize the device page */ +static int mic_dp_init(struct mic_device *mdev) +{ + mdev->dp = kzalloc(MIC_DP_SIZE, GFP_KERNEL); + if (!mdev->dp) { + dev_err(mdev->sdev->parent, "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + + mdev->dp_dma_addr = mic_map_single(mdev, + mdev->dp, MIC_DP_SIZE); + if (mic_map_error(mdev->dp_dma_addr)) { + kfree(mdev->dp); + dev_err(mdev->sdev->parent, "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr);...

...v), "%s %d err %d\n", > + __func__, __LINE__, ret); > + goto err; > + } > + vr->len = vr_size; > + vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); > + vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; > + vqconfig[i].address = mic_map_single(mdev, > + vr->va, vr_size); > + if (mic_map_error(vqconfig[i].address)) { > + free_pages((unsigned long)vr->va, > + get_order(vr_size)); > + ret = -ENOMEM; > + dev_err(mic_dev(mvdev), "%s %d err %d\n", > + __func__, __LINE__, ret); > + goto e...

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:

...= -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vr->len = vr_size; + vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); + vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; + vqconfig[i].address = mic_map_single(mdev, + vr->va, vr_size); + if (mic_map_error(vqconfig[i].address)) { + free_pages((unsigned long)vr->va, + get_order(vr_size)); + ret = -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vqconfig[i].address = cpu_to...

...= -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vr->len = vr_size; + vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); + vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; + vqconfig[i].address = mic_map_single(mdev, + vr->va, vr_size); + if (mic_map_error(vqconfig[i].address)) { + free_pages((unsigned long)vr->va, + get_order(vr_size)); + ret = -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vqconfig[i].address = cpu_to...