5915699153
If using multiple cores on a system with hardware transactional
memory support, thread scaling does not work, as there was a single
point in the hash library which is a bottleneck for all threads,
which is the "free_slots" ring, which stores all the indices of
the free slots in the table.
This patch fixes the problem, by creating a local cache per logical core,
which stores locally indices of free slots,
so most times, writer threads will not interfere each other.
Fixes: 48a3991196 ("hash: replace with cuckoo hash implementation")
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
272 lines
7.4 KiB
ReStructuredText
272 lines
7.4 KiB
ReStructuredText
DPDK Release 2.2
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================
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New Features
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------------
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* **Enabled freeing of ring.**
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New function rte_ring_free() allows the user to free a ring
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if it was created with rte_ring_create().
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* **Extended Statistics**
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Define extended statistics naming scheme to store metadata in the name
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string name of each statistic, refer to the Extended Statistics section
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of the programmers guide. Implemented the extended stats API for these
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PMDs:
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* igb
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* igbvf
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* i40e
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* i40evf
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* fm10k
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* virtio
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* **Added API in ethdev to retrieve RX/TX queue information.**
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* Add the ability for the upper layer to query RX/TX queue information.
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* Add into rte_eth_dev_info new fields to represent information about
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RX/TX descriptors min/max/align numbers per queue for the device.
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* **Added RSS dynamic configuration to bonding.**
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* **Added e1000 Rx interrupt support.**
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* **Added igb TSO support for both PF and VF.**
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* **RSS enhancement on Intel x550 NIC**
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* Support 512 entries RSS redirection table.
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* Support per VF RSS redirection table.
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* **Flow director enhancement on Intel x550 NIC**
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* Add 2 new flow director modes on x550.
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* One is MAC VLAN mode, the other is tunnel mode.
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* **Added i40e vector RX/TX.**
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* **Added i40e flow control support.**
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* **Added DCB support to i40e PF driver.**
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* **Added RSS/FD input set granularity on Intel X710/XL710.**
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* **Added different GRE key length for input set on Intel X710/XL710.**
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* **Added fm10k vector RX/TX.**
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* **Added fm10k TSO support for both PF and VF.**
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* **Added fm10k VMDQ support.**
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* **New NIC Boulder Rapid support.**
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Boulder Rapid is a new NIC of Intel's fm10k family.
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* **Enhanced support for the Chelsio CXGBE driver.**
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* Added support for Jumbo Frames.
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* Optimize forwarding performance for Chelsio T5 40GbE cards.
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* **Added support for Mellanox ConnectX-4 adapters (mlx5).**
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The mlx5 poll-mode driver implements support for Mellanox ConnectX-4 EN
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and Mellanox ConnectX-4 Lx EN families of 10/25/40/50/100 Gb/s adapters.
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Like mlx4, this PMD is only available for Linux and is disabled by default
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due to external dependencies (libibverbs and libmlx5).
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* **Enhanced support for virtio driver.**
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* Virtio ring layout optimization (fixed avail ring)
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* Vector RX
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* Simple TX
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* **Added vhost-user multiple queue support.**
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* **Added port hotplug support to vmxnet3.**
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* **Added port hotplug support to xenvirt.**
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Resolved Issues
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---------------
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EAL
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~~~
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* **eal/linux: Fixed epoll timeout.**
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Fixed issue where the ``rte_epoll_wait()`` function didn't return when the
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underlying call to ``epoll_wait()`` timed out.
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Drivers
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~~~~~~~
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* **igb: Fixed IEEE1588 frame identification in I210.**
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Fixed issue where the flag PKT_RX_IEEE1588_PTP was not being set
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in Intel I210 NIC, as EtherType in RX descriptor is in bits 8:10 of
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Packet Type and not in the default bits 0:2.
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* **ixgbe: Fixed issue with X550 DCB.**
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Fixed a DCB issue with x550 where for 8 TCs (Traffic Classes), if a packet
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with user priority 6 or 7 was injected to the NIC, then the NIC would only
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put 3 packets into the queue. There was also a similar issue for 4 TCs.
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* **ixgbe: Removed burst size restriction of vector RX.**
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Fixed issue where a burst size less than 32 didn't receive anything.
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* **i40e: Fixed base driver allocation when not using first numa node.**
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Fixed i40e issue that occurred when a DPDK application didn't initialize
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ports if memory wasn't available on socket 0.
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* **i40e: Fixed maximum of 64 queues per port.**
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Fixed the issue in i40e of cannot supporting more than 64 queues per port,
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though hardware actually supports that. The real number of queues may vary,
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as long as the total number of queues used in PF, VFs, VMDq and FD does not
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exceeds the hardware maximum.
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* **vhost: Fixed Qemu shutdown.**
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Fixed issue with libvirt ``virsh destroy`` not killing the VM.
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* **virtio: Fixed crash after changing link state.**
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Fixed io permission in the interrupt handler.
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* **virtio: Fixed crash when releasing queue.**
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Fixed issue when releasing null control queue.
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* **hash: Fixed thread scaling by reducing contention.**
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Fixed issue in hash library where, using multiple cores with
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hardware transactional memory support, thread scaling did not work,
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due to the global ring that is shared by all cores.
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Libraries
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~~~~~~~~~
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* **hash: Fixed memory allocation of Cuckoo Hash key table.**
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Fixed issue where an incorrect Cuckoo Hash key table size could be
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calculated limiting the size to 4GB.
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Examples
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~~~~~~~~
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Other
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~~~~~
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Known Issues
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------------
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API Changes
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-----------
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* The deprecated flow director API is removed.
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It was replaced by rte_eth_dev_filter_ctrl().
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* The dcb_queue is renamed to dcb_tc in following dcb configuration
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structures: rte_eth_dcb_rx_conf, rte_eth_dcb_tx_conf,
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rte_eth_vmdq_dcb_conf, rte_eth_vmdq_dcb_tx_conf.
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* The function rte_eal_pci_close_one() is removed.
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It was replaced by rte_eal_pci_detach().
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* The deprecated ACL API ipv4vlan is removed.
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* The deprecated hash function rte_jhash2() is removed.
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It was replaced by rte_jhash_32b().
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* The deprecated KNI functions are removed:
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rte_kni_create(), rte_kni_get_port_id() and rte_kni_info_get().
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* The deprecated ring PMD functions are removed:
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rte_eth_ring_pair_create() and rte_eth_ring_pair_attach().
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* The devargs union field virtual is renamed to virt for C++ compatibility.
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ABI Changes
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-----------
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* The EAL and ethdev structures rte_intr_handle and rte_eth_conf were changed
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to support Rx interrupt. It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
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* The ethdev flow director entries for SCTP were changed.
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It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
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* The size of the ethdev structure rte_eth_hash_filter_info is changed
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by adding a new element rte_eth_input_set_conf in an union.
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* The new fields rx_desc_lim and tx_desc_lim are added into rte_eth_dev_info
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structure.
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* The maximum number of queues per port CONFIG_RTE_MAX_QUEUES_PER_PORT is
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increased to 1024.
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* The mbuf structure was changed to support unified packet type.
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It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
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* The dummy malloc library is removed. The content was moved into EAL in 2.1.
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* The LPM structure is changed. The deprecated field mem_location is removed.
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* librte_table LPM: A new parameter to hold the table name will be added to
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the LPM table parameter structure.
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* librte_port: Macros to access the packet meta-data stored within the packet
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buffer has been adjusted to cover the packet mbuf structure.
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* librte_cfgfile: Allow longer names and values by increasing the constants
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CFG_NAME_LEN and CFG_VALUE_LEN to 64 and 256 respectively.
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Shared Library Versions
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-----------------------
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The libraries prepended with a plus sign were incremented in this version.
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.. code-block:: diff
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+ libethdev.so.2
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+ librte_acl.so.2
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+ librte_cfgfile.so.2
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librte_cmdline.so.1
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librte_distributor.so.1
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+ librte_eal.so.2
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+ librte_hash.so.2
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librte_ip_frag.so.1
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librte_ivshmem.so.1
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librte_jobstats.so.1
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+ librte_kni.so.2
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librte_kvargs.so.1
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+ librte_lpm.so.2
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+ librte_mbuf.so.2
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librte_mempool.so.1
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librte_meter.so.1
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librte_pipeline.so.1
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librte_pmd_bond.so.1
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+ librte_pmd_ring.so.2
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+ librte_port.so.2
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librte_power.so.1
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librte_reorder.so.1
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librte_ring.so.1
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librte_sched.so.1
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+ librte_table.so.2
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librte_timer.so.1
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librte_vhost.so.1
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