#include <rte_bpf.h>
void rte_bpf_eth_rx_unload (uint16_t port, uint16_t queue)
void rte_bpf_eth_tx_unload (uint16_t port, uint16_t queue)
int rte_bpf_eth_rx_elf_load (uint16_t port, uint16_t queue, const
struct rte_bpf_prm *prm, const char *fname, const char *sname,
uint32_t flags)
int rte_bpf_eth_tx_elf_load (uint16_t port, uint16_t queue, const
struct rte_bpf_prm *prm, const char *fname, const char *sname,
uint32_t flags)
API to install BPF filter as RX/TX callbacks for eth devices. Note
that right now:
- it is not MT safe, i.e. it is not allowed to do load/unload for the same
port/queue from different threads in parallel.
- though it allows to do load/unload at runtime (while RX/TX is ongoing on
given port/queue).
- allows only one BPF program per port/queue, i.e. new load will replace
previously loaded for that port/queue BPF program. Filter behaviour - if
BPF program returns zero value for a given packet, then it will be dropped
inside callback and no further processing on RX - it will be dropped
inside callback and no further processing for that packet will happen. on
TX - packet will remain unsent, and it is responsibility of the user to
handle such situation (drop, try to send again, etc.).
Definition in file rte_bpf_ethdev.h.
Unload previously loaded BPF program (if any) from given RX
port/queue and remove appropriate RX port/queue callback.
Parameters
port The identifier of the ethernet port
queue The identifier of the RX queue on the given port
Unload previously loaded BPF program (if any) from given TX
port/queue and remove appropriate TX port/queue callback.
Parameters
port The identifier of the ethernet port
queue The identifier of the TX queue on the given port
Load BPF program from the ELF file and install callback to execute
it on given RX port/queue.
Parameters
port The identifier of the ethernet port
queue The identifier of the RX queue on the given port
fname Pathname for a ELF file.
sname Name of the executable section within the file to load.
prm Parameters used to create and initialise the BPF execution context.
flags Flags that define expected behavior of the loaded filter (i.e.
jited/non-jited version to use).
Returns
Zero on successful completion or negative error code
otherwise.
Load BPF program from the ELF file and install callback to execute
it on given TX port/queue.
Parameters
port The identifier of the ethernet port
queue The identifier of the TX queue on the given port
fname Pathname for a ELF file.
sname Name of the executable section within the file to load.
prm Parameters used to create and initialise the BPF execution context.
flags Flags that define expected behavior of the loaded filter (i.e.
jited/non-jited version to use).
Returns
Zero on successful completion or negative error code
otherwise.
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