Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Pass-through pipeline is updated with addition of packet fields swap
action. To enable swap action, new entry i.e 'swap' is required in
the passthrough pipeline section of the configuration file, and this
entry contains the offsets (in bytes) of the packet fields to be
swapped.
Each swap entry specifies the pair of packet fields offsets to be
swapped. Therefore, to perform swap action on more than one pair of
packets fields, separate swap entries, each one responsible for unique
pair of packet fields are needed.
Following illustrates the pass-through pipeline configuration that
swaps the source and destination addresses of the mac and tcp
ports of the received packets.
[EAL]
log_level = 0
[PIPELINE0]
type = MASTER
core = 0
[PIPELINE1]
type = PASS-THROUGH
core = 1
pktq_in = RXQ0.0 RXQ1.0 RXQ2.0 RXQ3.0
pktq_out = TXQ0.0 TXQ1.0 TXQ2.0 TXQ3.0
swap = 256 262; MACDST <-> MACSRC
;swap = 282 286; IPSRC <-> IPDST
swap = 290 292; PORTSRC <-> PORTDST
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
The pass-through pipeline implementation is extended with load balancing
function. This function allows uniform distribution of the packets among
its output ports. For packets distribution, any application level logic
can be applied. For instance, in this implementation, hash value
computed over specific header fields of the incoming packets has been
used to spread traffic uniformly among the output ports.
The following pass-through configuration can be used for implementing
load balancing function over ipv4 traffic;
[PIPELINE0]
type = PASS-THROUGH
core = 0
pktq_in = RXQ0.0 RXQ1.0 RXQ2.0 RXQ3.0
pktq_out = TXQ0.0 TXQ1.0 TXQ2.0 TXQ3.0
dma_src_offset = 278; mbuf (128) + headroom (128) + 1st ethertype offset (14) + ttl offset within ip header = 278 (ipv4)
dma_dst_offset = 128; mbuf (128)
dma_size = 16
dma_src_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF
dma_hash_offset = 144; (dma_dst_offset+dma_size)
lb = hash
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
This patch implements a generic approach to
extract fields from the packet's header and
copying them to packet metadata. The fields
are selected at the desired offset on the basis
of the mask specified in application configuration
file. The extracted fields, for instance, can be
used to compute hash for the lookup table. This
feature exposes more flexibility to the users as
they will be able to employ new protocol headers
and specify the required fields to be extracted.
The above feature has been implemented as port_in
action handler of the passthrough pipeline. The
example of the configuration file for passthrough
pipeline is as below;
[PIPELINE1]
type = PASS-THROUGH
core = 1
pktq_in = RXQ0.0 RXQ1.0 RXQ2.0 RXQ3.0
pktq_out = TXQ0.0 TXQ1.0 TXQ2.0 TXQ3.0
dma_size = 16
dma_dst_offset = 64
dma_src_offset = 150
dma_src_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF
dma_hash_offset = 80
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
