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* tools/virtio: more stubsMichael S. Tsirkin2014-12-15
| | | | | | | As usual, add more stubs to fix test build after main codebase changes. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* virtio: add support for 64 bit features.Michael S. Tsirkin2014-12-09
| | | | | | | | | | | | | | | | | | | | Change u32 to u64, and use BIT_ULL and 1ULL everywhere. Note: transports are unchanged, and only set low 32 bit. This guarantees that no transport sets e.g. VERSION_1 by mistake without proper support. Based on patch by Rusty. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* virtio: use u32, not bitmap for featuresMichael S. Tsirkin2014-12-09
| | | | | | | | | | | | | | | | | | | It seemed like a good idea to use bitmap for features in struct virtio_device, but it's actually a pain, and seems to become even more painful when we get more than 32 feature bits. Just change it to a u32 for now. Based on patch by Rusty. Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* tools: Consolidate types.hBorislav Petkov2014-05-01
| | | | | | | | | | | Combine all definitions into a common tools/include/linux/types.h and kill the wild growth elsewhere. Move DECLARE_BITMAP to its proper bitmap.h header. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Link: http://lkml.kernel.org/n/tip-azczs7qcv6h9xek9od10hiv2@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* tools: Unify export.hBorislav Petkov2014-05-01
| | | | | | | | | | | | | | | | | | | | So tools/ has been growing three, at a different stage of their development export.h headers and so we should unite into one. Add tools/include/ to the include path of virtio and liblockdep to pick the shared header now. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: virtio-dev@lists.oasis-open.org Cc: virtualization@lists.linux-foundation.org Link: http://lkml.kernel.org/r/1397493185-19521-2-git-send-email-bp@alien8.de Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* tools/virtio: fix missing kmemleak_ignore symbolJoel Stanley2014-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | In commit bb478d8b167 virtio_ring: plug kmemleak false positive, kmemleak_ignore was introduced. This broke compilation of virtio_test: cc -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -c -o virtio_ring.o ../../drivers/virtio/virtio_ring.c ../../drivers/virtio/virtio_ring.c: In function ‘vring_add_indirect’: ../../drivers/virtio/virtio_ring.c:177:2: warning: implicit declaration of function ‘kmemleak_ignore’ [-Wimplicit-function-declaration] kmemleak_ignore(desc); ^ cc virtio_test.o virtio_ring.o -o virtio_test virtio_ring.o: In function `vring_add_indirect': tools/virtio/../../drivers/virtio/virtio_ring.c:177: undefined reference to `kmemleak_ignore' Add a dummy header for tools/virtio, and add #incldue <linux/kmemleak.h> to drivers/virtio/virtio_ring.c so it is picked up by the userspace tools. Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: update internal copies of headersJoel Stanley2014-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The virtio headers have changed recently: 5b1bf7cb673 virtio_ring: let virtqueue_{kick()/notify()} return a bool 46f9c2b925a virtio_ring: change host notification API Update the internal copies to fix the build of virtio_test: cc -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -c -o virtio_test.o virtio_test.c In file included from virtio_test.c:15:0: ./linux/virtio.h:76:19: error: conflicting types for ‘vring_new_virtqueue’ struct virtqueue *vring_new_virtqueue(unsigned int index, ^ In file included from ./linux/virtio_ring.h:1:0, from ../../usr/include/linux/vhost.h:17, from virtio_test.c:14: ./linux/../../../include/linux/virtio_ring.h:68:19: note: previous declaration of ‘vring_new_virtqueue’ was here struct virtqueue *vring_new_virtqueue(unsigned int index, virtio_test.c: In function ‘vq_info_add’: virtio_test.c:103:12: warning: passing argument 7 of ‘vring_new_virtqueue’ from incompatible pointer type [enabled by default] vq_notify, vq_callback, "test"); ^ In file included from virtio_test.c:15:0: ./linux/virtio.h:76:19: note: expected ‘void (*)(struct virtqueue *)’ but argument is of type ‘_Bool (*)(struct virtqueue *)’ struct virtqueue *vring_new_virtqueue(unsigned int index, ^ Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: move module license stub to module.hMichael S. Tsirkin2013-07-08
| | | | | | | | | | | | | | This fixes build for the vringh test: [linux]$ make -C tools/virtio/ make: Entering directory `/home/mst/scm/linux/tools/virtio' cc -g -O2 -Wall -I. -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -c -o vringh.o ../../drivers/vhost/vringh.c ../../drivers/vhost/vringh.c:1010:16: error: expected declaration specifiers or ‘...’ before string constant Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: remove virtqueue_add_buf() from tests.Rusty Russell2013-03-20
| | | | | | Make the rest of the paths use virtqueue_add_sgs or add_outbuf. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: make vringh_test use inbuf/outbuf.Rusty Russell2013-03-20
| | | | | | | | | | | | | | | | | | | | As expected, the simplified accessors are faster. for i in `seq 50`; do /usr/bin/time -f 'Wall time:%e' ./vringh_test --indirect --eventidx --parallel --fast-vringh; done 2>&1 | stats --trim-outliers: Before: Using CPUS 0 and 3 Guest: notified 0, pinged 39062-39063(39063) Host: notified 39062-39063(39063), pinged 0 Wall time:1.760000-2.220000(1.789167) After: Using CPUS 0 and 3 Guest: notified 0, pinged 39037-39063(39062) Host: notified 39037-39063(39062), pinged 0 Wall time:1.640000-1.810000(1.676875) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* virtio_ring: virtqueue_add_sgs, to add multiple sgs.Rusty Russell2013-03-20
| | | | | | | | | | | | | | | | | | | | | | | | | | virtio_scsi can really use this, to avoid the current hack of copying the whole sg array. Some other things get slightly neater, too. This causes a slowdown in virtqueue_add_buf(), which is implemented as a wrapper. This is addressed in the next patches. for i in `seq 50`; do /usr/bin/time -f 'Wall time:%e' ./vringh_test --indirect --eventidx --parallel --fast-vringh; done 2>&1 | stats --trim-outliers: Before: Using CPUS 0 and 3 Guest: notified 0, pinged 39009-39063(39062) Host: notified 39009-39063(39062), pinged 0 Wall time:1.700000-1.950000(1.723542) After: Using CPUS 0 and 3 Guest: notified 0, pinged 39062-39063(39063) Host: notified 39062-39063(39063), pinged 0 Wall time:1.760000-2.220000(1.789167) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Asias He <asias@redhat.com>
* tools/virtio: add vring_test.Rusty Russell2013-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is mainly to test the drivers/vhost/vringh.c code, but it also uses the drivers/virtio/virtio_ring.c code for the guest side. Usage for testing the basic implementation: ./vringh_test # Test with indirect descriptors ./vringh_test --indirect # Test with indirect descriptors and event indexex ./vringh_test --indirect --eventidx You can run a parallel stress test by adding --parallel to any of the above options. eg ./vringh_test --parallel: Using CPUS 0 and 3 Guest: notified 10107974, pinged 107970 Host: notified 108158, pinged 3172148 ./vringh_test --indirect --eventidx --parallel: Using CPUS 0 and 3 Guest: notified 156357, pinged 156251 Host: notified 156251, pinged 78179 Average of 50 times doing ./vringh_test --indirect --eventidx --parallel: 2.840000-3.040000(2.927292)user Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: separate headers more.Rusty Russell2013-03-19
| | | | | | | | | | This makes them a bit more like the kernel headers, so we can include more real kernel headers in our tests. In addition this means that we don't break tools/virtio with the next patch. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: fix build for 3.8Michael S. Tsirkin2013-03-19
| | | | | Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* virtio/tools: add delayed interupt modeMichael S. Tsirkin2012-05-02
| | | | Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tools/virtio: stub out strong barriersMichael S. Tsirkin2012-02-28
| | | | | | The tool should never use them, abort if it does. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tools/virtio: add linux/hrtimer.h stubMichael S. Tsirkin2012-02-28
| | | | | | Make tool build after virtio changes broke it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tools/virtio: add linux/module.h stubMichael S. Tsirkin2012-02-28
| | | | | | Make the tool build again after virtio changes broke it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* virtio: rename virtqueue_add_buf_gfp to virtqueue_add_bufRusty Russell2012-01-12
| | | | | | | | | Remove wrapper functions. This makes the allocation type explicit in all callers; I used GPF_KERNEL where it seemed obvious, left it at GFP_ATOMIC otherwise. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Christoph Hellwig <hch@lst.de>
* virtio: harsher barriers for rpmsg.Rusty Russell2012-01-12
| | | | | | | | | | | | | | | | | | We were cheating with our barriers; using the smp ones rather than the real device ones. That was fine, until rpmsg came along, which is used to talk to a real device (a non-SMP CPU). Unfortunately, just putting back the real barriers (reverting d57ed95d) causes a performance regression on virtio-pci. In particular, Amos reports netbench's TCP_RR over virtio_net CPU utilization increased up to 35% while throughput went down by up to 14%. By comparison, this branch is in the noise. Reference: https://lkml.org/lkml/2011/12/11/22 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* tools/virtio: virtio_test toolMichael S. Tsirkin2010-12-09
This is the userspace part of the tool: it includes a bunch of stubs for linux APIs, somewhat simular to linuxsched. This makes it possible to recompile the ring code in userspace. A small test example is implemented combining this with vhost_test module. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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