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path: root/src/vnet/replication.c
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2018-03-14vlib: internal buffer manager reworkDamjan Marion1-3/+2
- buffer_main is no longer part of vlib_main_t - pool of free lists is still part of vlib_main_t - mheap is not used anymore for buffer allocation - simple bitmap bassed buffer alloc scheme is introduced Change-Id: I3e1e6d00e2c8122293ed0a741245eb841315a1ff Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-01-31vlib: allocating buffers on thread-x and freeing them on thread-y causesSteven1-2/+1
a crash on debug image (VPP-1151) In debug image, there is extra code to validate the buffer when it is freed. It uses the hash table to lookup the buffer index with spinlock to prevent contention. However, there is one spinlock for each worker thread. So allocating the buffer on thread-x and freeing the same buffer on thread-y causes the validation to fail on thread-y. The fix is to have only one spinlock, stored in vlib_global_main. Change-Id: Ic383846cefe84a3e262255afcf82276742f0f62e Signed-off-by: Steven <sluong@cisco.com> (cherry picked from commit a7effa1b072463f12305a474f082aeaffb7ada4b)
2017-11-14l2-flood: fix restore vnet buffer's flags in the replication routineSteve Shin1-0/+5
When BUM packets are flooded in the l2 domain, some data should be kept and restored for recycling in the replication routine. If l2 bridge domain has multiple interfaces mixed with normal and vlan tagged, the vlan tag value of the vnet buffer can be changed while flooding the replicated packets. The change is made to store and restore the original vlan tag in the replication logic. Change-Id: I399cf54cd2e74cb44a2be42241bdc4fba85032c5 Signed-off-by: Steve Shin <jonshin@cisco.com>
2017-07-14Introduce l{2,3,4}_hdr_offset fields in the buffer metadataDamjan Marion1-3/+3
To save space in the first cacheline following is changed: - total_length_not_including_first_buffer moved to the 2nd cacheline. This field is used only when VLIB_BUFFER_TOTAL_LENGTH_VALID and VLIB_BUFFER_NEXT_PRESENT are both set. - free_list_index is now stored in 4bits inside flags, which allows up to 16 free lists. In case we need more we can store index in the 2nd cachelin Change-Id: Ic8521350819391af470d31d3fa1013e67ecb7681 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-07-10vlib: store buffer memory information in the buffer_mainDamjan Marion1-1/+1
Currently, buffer index is calculated as a offset to the physmem region shifted by log2_cacheline size. When DPDK is used we "hack" physmem data with information taken from dpdk mempool. This makes physmem code not usable with DPDK. This change makes buffer memory start and size independent of physmem basically allowing physmem to be used when DPDK plugin is loaded. Change-Id: Ieb399d398f147583b9baab467152a352d58c9c31 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-06Use thread local storage for thread indexDamjan Marion1-10/+10
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-01dpdk: be a pluginDamjan Marion1-3/+3
Change-Id: I238258cdeb77035adc5e88903d824593d0a1da90 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-02-06vlib: remove algned/unaligned buffers schemeDamjan Marion1-18/+5
Change-Id: I4433eaed3f4e201edc329c4842cbbf74beb19a9a Signed-off-by: Damjan Marion <damarion@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+293
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>