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ethdev: add field for device data per process

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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.

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Alejandro Lucero 2018-10-15 15:11:02 +01:00 committed by Ferruh Yigit
parent 621c5c1db2
commit deb373fb07
4 changed files with 10 additions and 4 deletions
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2
doc/guides/rel_notes/release_18_11.rst
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@ -342,7 +342,7 @@ The libraries prepended with a plus sign were incremented in this version.
librte_cryptodev.so.5 librte_cryptodev.so.5
librte_distributor.so.1 librte_distributor.so.1
+ librte_eal.so.9 + librte_eal.so.9
librte_ethdev.so.10 + librte_ethdev.so.11
+ librte_eventdev.so.6 + librte_eventdev.so.6
librte_flow_classify.so.1 librte_flow_classify.so.1
librte_gro.so.1 librte_gro.so.1

2
lib/librte_ethdev/Makefile
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@ -16,7 +16,7 @@ LDLIBS += -lrte_mbuf -lrte_kvargs
EXPORT_MAP := rte_ethdev_version.map EXPORT_MAP := rte_ethdev_version.map
LIBABIVER := 10 LIBABIVER := 11
SRCS-y += ethdev_private.c SRCS-y += ethdev_private.c
SRCS-y += rte_ethdev.c SRCS-y += rte_ethdev.c

2
lib/librte_ethdev/meson.build
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@ -2,7 +2,7 @@
# Copyright(c) 2017 Intel Corporation # Copyright(c) 2017 Intel Corporation
name = 'ethdev' name = 'ethdev'
version = 10 version = 11
allow_experimental_apis = true allow_experimental_apis = true
sources = files('ethdev_private.c', sources = files('ethdev_private.c',
'ethdev_profile.c', 'ethdev_profile.c',

8
lib/librte_ethdev/rte_ethdev_core.h
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@ -539,7 +539,13 @@ struct rte_eth_dev {
eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */ 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_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
eth_tx_prep_t tx_pkt_prepare; /**< Pointer to PMD transmit prepare 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 */ const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
struct rte_device *device; /**< Backing device */ struct rte_device *device; /**< Backing device */
struct rte_intr_handle *intr_handle; /**< Device interrupt handle */ struct rte_intr_handle *intr_handle; /**< Device interrupt handle */