Primary and secondary processes share a per-device private data. With
current design it is not possible to have data per-device per-process.
This is required for handling properly the CPP interface inside the NFP
PMD with multiprocess support.
There is also at least another PMD driver, tap, with similar
requirements for per-process device data.
v2:
- changing library version
- report shared library change in release notes
Signed-off-by: Alejandro Lucero <alejandro.luc...@netronome.com>
---
doc/guides/rel_notes/release_18_11.rst | 1 +
lib/librte_ethdev/Makefile | 2 +-
lib/librte_ethdev/meson.build | 2 +-
lib/librte_ethdev/rte_ethdev_core.h | 8 +++++++-
4 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/doc/guides/rel_notes/release_18_11.rst
b/doc/guides/rel_notes/release_18_11.rst
index c806dc6..32ab754 100644
--- a/doc/guides/rel_notes/release_18_11.rst
+++ b/doc/guides/rel_notes/release_18_11.rst
@@ -189,6 +189,7 @@ Shared Library Versions
librte_acl.so.2
+ librte_cfgfile.so.2
librte_cmdline.so.2
+ + librte_ethdev.so.2
This section is a comment. Do not overwrite or remove it.
=========================================================
diff --git a/lib/librte_ethdev/Makefile b/lib/librte_ethdev/Makefile
index d720dd2..e27bcd5 100644
--- a/lib/librte_ethdev/Makefile
+++ b/lib/librte_ethdev/Makefile
@@ -16,7 +16,7 @@ LDLIBS += -lrte_mbuf -lrte_kvargs
EXPORT_MAP := rte_ethdev_version.map
-LIBABIVER := 10
+LIBABIVER := 11
SRCS-y += ethdev_private.c
SRCS-y += rte_ethdev.c
diff --git a/lib/librte_ethdev/meson.build b/lib/librte_ethdev/meson.build
index 172e302..6783013 100644
--- a/lib/librte_ethdev/meson.build
+++ b/lib/librte_ethdev/meson.build
@@ -2,7 +2,7 @@
# Copyright(c) 2017 Intel Corporation
name = 'ethdev'
-version = 10
+version = 11
allow_experimental_apis = true
sources = files('ethdev_private.c',
'ethdev_profile.c',
diff --git a/lib/librte_ethdev/rte_ethdev_core.h
b/lib/librte_ethdev/rte_ethdev_core.h
index 33d12b3..0d28fd9 100644
--- a/lib/librte_ethdev/rte_ethdev_core.h
+++ b/lib/librte_ethdev/rte_ethdev_core.h
@@ -539,7 +539,13 @@ struct rte_eth_dev {
eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */
eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
eth_tx_prep_t tx_pkt_prepare; /**< Pointer to PMD transmit prepare
function. */
- struct rte_eth_dev_data *data; /**< Pointer to device data */
+ /**
+ * Next two fields are per-device data but *data is shared between
+ * primary and secondary processes and *process_private is per-process
+ * private. The second one is managed by PMDs if necessary.
+ */
+ struct rte_eth_dev_data *data; /**< Pointer to device data. */
+ void *process_private; /**< Pointer to per-process device data. */
const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
struct rte_device *device; /**< Backing device */
struct rte_intr_handle *intr_handle; /**< Device interrupt handle */
--
1.9.1
