1aadb2f6b1
An optimization was done to only take the iotlb cache lock once per packet burst instead of once per IOVA translation. With this, IOTLB miss requests are sent to Qemu with the lock held, which can cause a deadlock if the socket buffer is full, and if Qemu is waiting for an IOTLB update to be done. Holding the lock is not necessary when sending an IOTLB miss request, as it is not manipulating the IOTLB cache list, which the lock protects. Let's just release it while sending the IOTLB miss. Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Jens Freimann <jfreimann@redhat.com> |
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| buildtools | ||
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| devtools | ||
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| drivers | ||
| examples | ||
| lib | ||
| mk | ||
| pkg | ||
| test | ||
| usertools | ||
| .gitattributes | ||
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| GNUmakefile | ||
| LICENSE.GPL | ||
| LICENSE.LGPL | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD license for the core libraries and drivers. The kernel components are GPLv2 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org