Zero-copy slave support for memif PMD.
Slave interface exposes DPDK memory to
master interface. Only single file segments
are supported (EAL option --single-file-segments).
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Define MEMIF_SOCKET_UN_SIZE to size of unix domain socket address.
Report error in case of longer path.
Fixes: b923866c6974 ("net/memif: allow for full key size in socket name")
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
The key size for memif is 256 but the unix domain socket structure has
space for 100 bytes. Change it to use a larger buffer and not hard
code the keysize everywhere.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Jakub Grajciar <jgrajcia@cisco.com>
gcc-9 is stricter on NULL arguments for printf.
Fix the following build error by avoiding NULL argument to printf.
In file included from drivers/net/memif/memif_socket.c:26:
In function 'memif_socket_create',
inlined from 'memif_socket_init' at net/memif/memif_socket.c:965:12:
net/memif/rte_eth_memif.h:35:2: error:
'%s' directive argument is null [-Werror=format-overflow=]
35 | rte_log(RTE_LOG_ ## level, memif_logtype, \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
36 | "%s(): " fmt "\n", __func__, ##args)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fixes: 09c7e63a71f9 ("net/memif: introduce memory interface PMD")
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Multi-process support for memif PMD.
Primary process handles connection establishment.
Secondary process queries for memory regions.
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Shared memory packet interface (memif) PMD allows for DPDK and any other
client using memif (DPDK, VPP, libmemif) to communicate using shared
memory. The created device transmits packets in a raw format. It can be
used with Ethernet mode, IP mode, or Punt/Inject. At this moment, only
Ethernet mode is supported in DPDK memif implementation. Memif is Linux
only.
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
