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Il 19/06/2013 10:24, Michael S. Tsirkin ha scritto: >> > 2) We introduce VIRTIO_NET_F_ANY_LAYOUT and VIRTIO_BLK_F_ANY_LAYOUT >> > specifically for net and block (note the new names). So why not a transport feature? Is it just because the SCSI commands for virtio-blk also require a config space field? Sorry if I missed this upthread. Paolo >> > 3) I note the

Il 19/06/2013 10:24, Michael S. Tsirkin ha scritto: >> > 2) We introduce VIRTIO_NET_F_ANY_LAYOUT and VIRTIO_BLK_F_ANY_LAYOUT >> > specifically for net and block (note the new names). So why not a transport feature? Is it just because the SCSI commands for virtio-blk also require a config space field? Sorry if I missed this upthread. Paolo >> > 3) I note the

...efine BAD_RING(_vq, fmt, args...) \ - do { \ - dev_err(&(_vq)->vq.vdev->dev, \ - "%s:"fmt, (_vq)->vq.name, ##args); \ - BUG(); \ - } while (0) -/* Caller is supposed to guarantee no reentry. */ -#define START_USE(_vq) \ - do { \ - if ((_vq)->in_use) \ - panic("%s:in_use = %i\n", \ - (_vq)->vq.name, (_vq)->in_use); \ - (_vq)->in_use = __LINE__; \ - } while (0) -#define END_USE(_vq) \ - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; } while(0) -#else -#define BAD_RING(_vq, fmt, args...) \ - do {...

...do { \ > - dev_err(&(_vq)->vq.vdev->dev, \ > - "%s:"fmt, (_vq)->vq.name, ##args); \ > - BUG(); \ > - } while (0) > -/* Caller is supposed to guarantee no reentry. */ > -#define START_USE(_vq) \ > - do { \ > - if ((_vq)->in_use) \ > - panic("%s:in_use = %i\n", \ > - (_vq)->vq.name, (_vq)->in_use); \ > - (_vq)->in_use = __LINE__; \ > - } while (0) > -#define END_USE(_vq) \ > - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; } while(0) > -#else > -#define BAD...

...do { \ > - dev_err(&(_vq)->vq.vdev->dev, \ > - "%s:"fmt, (_vq)->vq.name, ##args); \ > - BUG(); \ > - } while (0) > -/* Caller is supposed to guarantee no reentry. */ > -#define START_USE(_vq) \ > - do { \ > - if ((_vq)->in_use) \ > - panic("%s:in_use = %i\n", \ > - (_vq)->vq.name, (_vq)->in_use); \ > - (_vq)->in_use = __LINE__; \ > - } while (0) > -#define END_USE(_vq) \ > - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; } while(0) > -#else > -#define BAD...

...io/virtio_ring.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index fbd2ecd..2216587 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -36,10 +36,10 @@ panic("%s:in_use = %i\n", \ (_vq)->vq.name, (_vq)->in_use); \ (_vq)->in_use = __LINE__; \ - mb(); \ + smp_mb(); \ } while (0) #define END_USE(_vq) \ - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0) + do { BUG_ON(!(_vq)->in_use); (_vq)->in_us...

...io/virtio_ring.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index fbd2ecd..2216587 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -36,10 +36,10 @@ panic("%s:in_use = %i\n", \ (_vq)->vq.name, (_vq)->in_use); \ (_vq)->in_use = __LINE__; \ - mb(); \ + smp_mb(); \ } while (0) #define END_USE(_vq) \ - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0) + do { BUG_ON(!(_vq)->in_use); (_vq)->in_us...

...ll back to mandatory barriers instead. */ +#define virtio_mb() mb() +#define virtio_rmb() rmb() +#define virtio_wmb() wmb() +#endif + #ifdef DEBUG /* For development, we want to crash whenever the ring is screwed. */ #define BAD_RING(_vq, fmt, args...) \ @@ -36,10 +54,10 @@ panic("%s:in_use = %i\n", \ (_vq)->vq.name, (_vq)->in_use); \ (_vq)->in_use = __LINE__; \ - mb(); \ + virtio_mb(); \ } while (0) #define END_USE(_vq) \ - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0) + do { BUG_ON(!(_vq)->in_use); (_vq)->in...

...ll back to mandatory barriers instead. */ +#define virtio_mb() mb() +#define virtio_rmb() rmb() +#define virtio_wmb() wmb() +#endif + #ifdef DEBUG /* For development, we want to crash whenever the ring is screwed. */ #define BAD_RING(_vq, fmt, args...) \ @@ -36,10 +54,10 @@ panic("%s:in_use = %i\n", \ (_vq)->vq.name, (_vq)->in_use); \ (_vq)->in_use = __LINE__; \ - mb(); \ + virtio_mb(); \ } while (0) #define END_USE(_vq) \ - do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0) + do { BUG_ON(!(_vq)->in_use); (_vq)->in...

Currently virtio-net code relys on the layout of descriptor, this patchset removed the assumptions and introduced a control command to set mac address. Last patch is a trivial renaming. V2: check guest's iov_len V3: fix of migration compatibility make mac field in config space read-only when new feature is acked V4: add fix of descriptor layout assumptions, trivial rename V5: fix

Currently virtio-net code relys on the layout of descriptor, this patchset removed the assumptions and introduced a control command to set mac address. Last patch is a trivial renaming. V2: check guest's iov_len V3: fix of migration compatibility make mac field in config space read-only when new feature is acked V4: add fix of descriptor layout assumptions, trivial rename V5: fix

From: Amos Kong <akong at redhat.com> Currently virtio-net code relys on the layout of descriptor, this patchset removed the assumptions and introduced a control command to set mac address. Last patch is a trivial renaming. V2: check guest's iov_len V3: fix of migration compatibility make mac field in config space read-only when new feature is acked V4: add fix of descriptor layout

From: Amos Kong <akong at redhat.com> Currently virtio-net code relys on the layout of descriptor, this patchset removed the assumptions and introduced a control command to set mac address. Last patch is a trivial renaming. V2: check guest's iov_len V3: fix of migration compatibility make mac field in config space read-only when new feature is acked V4: add fix of descriptor layout

...efine BAD_RING(_vq, fmt, args...) \ + do { \ + dev_err(&(_vq)->vq.vdev->dev, \ + "%s:"fmt, (_vq)->vq.name, ##args); \ + BUG(); \ + } while (0) /* Caller is supposed to guarantee no reentry. */ #define START_USE(_vq) \ do { \ if ((_vq)->in_use) \ - panic("in_use = %i\n", (_vq)->in_use); \ + panic("%s:in_use = %i\n", \ + (_vq)->vq.name, (_vq)->in_use); \ (_vq)->in_use = __LINE__; \ mb(); \ } while(0) #define END_USE(_vq) \ do { BUG_ON(!(_vq)->in_use); (_vq)->in_use =...

...efine BAD_RING(_vq, fmt, args...) \ + do { \ + dev_err(&(_vq)->vq.vdev->dev, \ + "%s:"fmt, (_vq)->vq.name, ##args); \ + BUG(); \ + } while (0) /* Caller is supposed to guarantee no reentry. */ #define START_USE(_vq) \ do { \ if ((_vq)->in_use) \ - panic("in_use = %i\n", (_vq)->in_use); \ + panic("%s:in_use = %i\n", \ + (_vq)->vq.name, (_vq)->in_use); \ (_vq)->in_use = __LINE__; \ mb(); \ } while(0) #define END_USE(_vq) \ do { BUG_ON(!(_vq)->in_use); (_vq)->in_use =...

...*CLI> P[ 0] Got empty Msg.. P[ 0] MGMT: Short status dinfo 1000000 P[ 0] MGMT: SSTATUS: L1_DEACTIVATED P[ 1] $$$ find_chan: No channel found for oad: dad: P[ 0] get_index: event not found! P[ 1] I IND :CLEAN_UP oad: dad: pid:0 state:none P[ 1] empty_chan_in_stack: 1 P[ 1] Idx:0 stack->cchan:0 in_use:0 Chan:1 P[ 1] Idx:1 stack->cchan:0 in_use:0 Chan:2 P[ 1] Idx:2 stack->cchan:0 in_use:0 Chan:3 P[ 1] $$$ CLEANUP CALLED pid:0 P[ 1] $$$ Already cleaned up bc with stid :0 P[ 1] $$$ find_chan: No channel found for oad: dad: P[ 0] get_index: event not found! P[ 1] I IND :CLEAN_UP oad: dad: pid:...

This patch-set introduces the CAIF Virtio Link layer. The purpose is to communicate with a remote processor (a modem) over shared memory. Virtio is used as the transport mechanism, and the Remoteproc framework provides configuration and management of the Virtio rings and devices. The modem and Linux host may be on the same SoC, or connected over a shared memory interface such as LLI. Zero-Copy

This patch-set introduces the CAIF Virtio Link layer. The purpose is to communicate with a remote processor (a modem) over shared memory. Virtio is used as the transport mechanism, and the Remoteproc framework provides configuration and management of the Virtio rings and devices. The modem and Linux host may be on the same SoC, or connected over a shared memory interface such as LLI. Zero-Copy

...--- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -52,8 +52,13 @@ "%s:"fmt, (_vq)->vq.name, ##args); \ (_vq)->broken = true; \ } while (0) -#define START_USE(vq) -#define END_USE(vq) +#define START_USE(_vq) \ + do { \ + while ((_vq)->in_use) \ + cpu_relax(); \ + (_vq)->in_use = __LINE__; \ + } while (0) +#define END_USE(_vq) ((_vq)->in_use = 0) #endif struct vring_desc_state { @@ -101,9 +106,9 @@ struct vring_virtqueue { size_t queue_size_in_bytes; dma_addr_t queue_dma_addr; -#ifdef DEBUG /* They're su...

Well, I''m working on adding a new type of user (organization) to my application, using a different database table than the standard User table (in the end, I think it works out being easier to deal with than creating another column in the original User table for account type). However, I''m running into a user registration problem. I can register both types of users fine,