riscv/qemu - qemu - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Daniel P. Berrange	2354bebaa4	net: fix missing include of qapi/error.h in netmap.c The netmap.c file fails to build on FreeBSD with net/netmap.c:95:9: warning: implicit declaration of function 'error_setg_errno' is invalid in C99 [-Wimplicit-function-declaration] error_setg_errno(errp, errno, "Failed to nm_open() %s", ^ net/netmap.c:432:9: warning: implicit declaration of function 'error_propagate' is invalid in C99 [-Wimplicit-function-declaration] error_propagate(errp, err); ^ Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1459429690-6144-1-git-send-email-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	10 years ago
Daniel P. Berrange	e31f045187	net: fix missing include of qapi/error.h in netmap.c The netmap.c file fails to build on FreeBSD with net/netmap.c:95:9: warning: implicit declaration of function 'error_setg_errno' is invalid in C99 [-Wimplicit-function-declaration] error_setg_errno(errp, errno, "Failed to nm_open() %s", ^ net/netmap.c:432:9: warning: implicit declaration of function 'error_propagate' is invalid in C99 [-Wimplicit-function-declaration] error_propagate(errp, err); ^ Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1459429690-6144-1-git-send-email-berrange@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>	10 years ago
Veronia Bahaa	f348b6d1a5	util: move declarations out of qemu-common.h Move declarations out of qemu-common.h for functions declared in utils/ files: e.g. include/qemu/path.h for utils/path.c. Move inline functions out of qemu-common.h and into new files (e.g. include/qemu/bcd.h) Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	10 years ago
Eric Blake	32bafa8fdd	qapi: Don't special-case simple union wrappers Simple unions were carrying a special case that hid their 'data' QMP member from the resulting C struct, via the hack method QAPISchemaObjectTypeVariant.simple_union_type(). But by using the work we started by unboxing flat union and alternate branches, coupled with the ability to visit the members of an implicit type, we can now expose the simple union's implicit type in qapi-types.h: \| struct q_obj_ImageInfoSpecificQCow2_wrapper { \| ImageInfoSpecificQCow2 data; \| }; \| \| struct q_obj_ImageInfoSpecificVmdk_wrapper { \| ImageInfoSpecificVmdk data; \| }; ... \| struct ImageInfoSpecific { \| ImageInfoSpecificKind type; \| union { /* union tag is @type / \| void data; \|- ImageInfoSpecificQCow2 qcow2; \|- ImageInfoSpecificVmdk vmdk; \|+ q_obj_ImageInfoSpecificQCow2_wrapper qcow2; \|+ q_obj_ImageInfoSpecificVmdk_wrapper vmdk; \| } u; \| }; Doing this removes asymmetry between QAPI's QMP side and its C side (both sides now expose 'data'), and means that the treatment of a simple union as sugar for a flat union is now equivalent in both languages (previously the two approaches used a different layer of dereferencing, where the simple union could be converted to a flat union with equivalent C layout but different {} on the wire, or to an equivalent QMP wire form but with different C representation). Using the implicit type also lets us get rid of the simple_union_type() hack. Of course, now all clients of simple unions have to adjust from using su->u.member to using su->u.member.data; while this touches a number of files in the tree, some earlier cleanup patches helped minimize the change to the initialization of a temporary variable rather than every single member access. The generated qapi-visit.c code is also affected by the layout change: \|@@ -7393,10 +7393,10 @@ void visit_type_ImageInfoSpecific_member \| } \| switch (obj->type) { \| case IMAGE_INFO_SPECIFIC_KIND_QCOW2: \|- visit_type_ImageInfoSpecificQCow2(v, "data", &obj->u.qcow2, &err); \|+ visit_type_q_obj_ImageInfoSpecificQCow2_wrapper_members(v, &obj->u.qcow2, &err); \| break; \| case IMAGE_INFO_SPECIFIC_KIND_VMDK: \|- visit_type_ImageInfoSpecificVmdk(v, "data", &obj->u.vmdk, &err); \|+ visit_type_q_obj_ImageInfoSpecificVmdk_wrapper_members(v, &obj->u.vmdk, &err); \| break; \| default: \| abort(); Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1458254921-17042-13-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>	10 years ago
Vincenzo Maffione	9fbad2ca36	net: netmap: probe netmap interface for virtio-net header Previous implementation of has_ufo, has_vnet_hdr, has_vnet_hdr_len, etc. did not really probe for virtio-net header support for the netmap interface attached to the backend. These callbacks were correct for VALE ports, but incorrect for hardware NICs, pipes, monitors, etc. This patch fixes the implementation to work properly with all kinds of netmap ports. Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com>	10 years ago
Peter Maydell	2744d9207f	net: Clean up includes Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-11-git-send-email-peter.maydell@linaro.org	10 years ago
Vincenzo Maffione	ab685220f6	net: netmap: use nm_open() to open netmap ports This patch simplifies the netmap backend code by means of the nm_open() helper function provided by netmap_user.h, which hides the details of open(), iotcl() and mmap() carried out on the netmap device. Moreover, the semantic of nm_open() makes it possible to open special netmap ports (e.g. pipes, monitors) and use special modes (e.g. host rings only, single queue mode, exclusive access). Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com>	10 years ago
Vincenzo Maffione	39bec4f38b	net: netmap: use error_setg() helpers in place of error_report() This update was required to align error reporting of netmap backend initialization to the modifications introduced by commit `a30ecde`. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com>	11 years ago
Vincenzo Maffione	54c59b4de5	net: netmap: Fix compilation issue Reorganization of struct NetClientOptions (commit `e4ba22b`) caused a compilation failure of the netmap backend. This patch fixes the issue by properly accessing the union field. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com>	11 years ago
Fam Zheng	82e1cc4bf9	Change qemu_set_fd_handler2(..., NULL, ...) to qemu_set_fd_handler Done with following Coccinelle semantic patch, plus manual cosmetic changes in net/*.c. @@ expression E1, E2, E3, E4; @@ - qemu_set_fd_handler2(E1, NULL, E2, E3, E4); + qemu_set_fd_handler(E1, E2, E3, E4); Signed-off-by: Fam Zheng <famz@redhat.com> Message-id: 1433400324-7358-8-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	11 years ago
Fam Zheng	e8dd1d9c39	netmap: Drop netmap_can_send This callback is called by main loop before polling s->fd, if it returns false, the fd will not be polled in this iteration. This is redundant with checks inside read callback. After this patch, the data will be copied from s->fd to s->iov when it arrives. If the device can't receive, it will be queued to incoming_queue, and when the device status changes, this queue will be flushed. Also remove the qemu_can_send_packet() check in netmap_send. If it's true, we are good; if it's false, the qemu_sendv_packet_async would return 0 and read poll will be disabled until netmap_send_completed is called. Signed-off-by: Fam Zheng <famz@redhat.com> Message-id: 1433400324-7358-5-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	11 years ago
Markus Armbruster	a30ecde6e7	net: Permit incremental conversion of init functions to Error Error reporting for netdev_add is broken: the net_client_init_fun[] report the actual errors with (at best) error_report(), and their caller net_client_init1() makes up a generic error on top. For command line and HMP, this produces an mildly ugly error cascade. In QMP, the actual errors go to stderr, and the generic error becomes the command's error reply. To fix this, we need to convert the net_client_init_fun[] to Error. To permit fixing them one by one, add an Error ** parameter to the net_client_init_fun[]. If the call fails without returning an Error, make up the same generic Error as before. But if it returns one, use that instead. Since none of them does so far, no functional change. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-3-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	11 years ago
Prasad Joshi	131e744a15	net: netmap_poll must update both read/write poll state Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	12 years ago
Vincenzo Maffione	0a985b3727	net: Disable netmap backend when not supported This patch fixes configure so that the netmap backend is not compiled in if the host doesn't support an API version >= 11. A version upper bound (15) has been added so that the netmap API can be extended with some minor features without requiring QEMU code modifications. Moreover, some changes have been done to net/netmap.c in order to reflect the current netmap API/ABI (11). The NETMAP_WITH_LIBS macro makes possible to include some utilities (e.g. netmap ring macros, D(), RD() and other high level functions) through the netmap headers. In this way we get rid of the D and RD macro definitions in the QEMU code, and we open the way for further code simplifications that will be introduced by future patches. Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	12 years ago
Vincenzo Maffione	f6c65bfb93	net: add offloading support to netmap backend Whit this patch, the netmap backend supports TSO/UFO/CSUM offloadings, and accepts the virtio-net header, similarly to what happens with TAP. The offloading callbacks in the NetClientInfo interface have been implemented. Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	12 years ago
Vincenzo Maffione	58952137b0	net: Adding netmap network backend This patch adds support for a network backend based on netmap. netmap is a framework for high speed packet I/O. You can use it to build extremely fast traffic generators, monitors, software switches or network middleboxes. Its companion software switch VALE lets you interconnect virtual machines. netmap and VALE are implemented as a non-intrusive kernel module, support NICs from multiple vendors, are part of standard FreeBSD distributions and available in source format for Linux too. To compile QEMU with netmap support, use the following configure options: ./configure [...] --enable-netmap --extra-cflags=-I/path/to/netmap/sys where "/path/to/netmap" contains the netmap source code, available at http://info.iet.unipi.it/~luigi/netmap/ The same webpage contains more information about the netmap project (together with papers and presentations). Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	13 years ago

15 Commits (d46a0bb24d6061c1eadcf1136fa73dc7c4ac267d)