Apart from the scheduler PMD changes required mentioned by Ciara,
re-acking this patch as all doubts are cleared on our end.
Acked-by: Fan Zhang <roy.fan.zh...@intel.com>
> -----Original Message-----
> From: Akhil Goyal <gak...@marvell.com>
> Sent: Monday, October 18, 2021 3:42 PM
> To: dev@dpdk.org
> Cc: tho...@monjalon.net; david.march...@redhat.com;
> hemant.agra...@nxp.com; ano...@marvell.com; De Lara Guarch, Pablo
> <pablo.de.lara.gua...@intel.com>; Trahe, Fiona <fiona.tr...@intel.com>;
> Doherty, Declan <declan.dohe...@intel.com>; ma...@nvidia.com;
> g.si...@nxp.com; Zhang, Roy Fan <roy.fan.zh...@intel.com>;
> jianjay.z...@huawei.com; asoma...@amd.com; ruifeng.w...@arm.com;
> Ananyev, Konstantin <konstantin.anan...@intel.com>; Nicolau, Radu
> <radu.nico...@intel.com>; ajit.khapa...@broadcom.com;
> rnagadhee...@marvell.com; adwiv...@marvell.com; Power, Ciara
> <ciara.po...@intel.com>; Akhil Goyal <gak...@marvell.com>; Troy, Rebecca
> <rebecca.t...@intel.com>
> Subject: [PATCH v3 3/7] cryptodev: move inline APIs into separate structure
>
> Move fastpath inline function pointers from rte_cryptodev into a
> separate structure accessed via a flat array.
> The intension is to make rte_cryptodev and related structures private
> to avoid future API/ABI breakages.
>
> Signed-off-by: Akhil Goyal <gak...@marvell.com>
> Tested-by: Rebecca Troy <rebecca.t...@intel.com>
> Acked-by: Fan Zhang <roy.fan.zh...@intel.com>
> ---
> lib/cryptodev/cryptodev_pmd.c | 53
> +++++++++++++++++++++++++++++-
> lib/cryptodev/cryptodev_pmd.h | 11 +++++++
> lib/cryptodev/rte_cryptodev.c | 19 +++++++++++
> lib/cryptodev/rte_cryptodev_core.h | 29 ++++++++++++++++
> lib/cryptodev/version.map | 5 +++
> 5 files changed, 116 insertions(+), 1 deletion(-)
>
> diff --git a/lib/cryptodev/cryptodev_pmd.c
> b/lib/cryptodev/cryptodev_pmd.c
> index 44a70ecb35..fd74543682 100644
> --- a/lib/cryptodev/cryptodev_pmd.c
> +++ b/lib/cryptodev/cryptodev_pmd.c
> @@ -3,7 +3,7 @@
> */
>
> #include <sys/queue.h>
> -
> +#include <rte_errno.h>
> #include <rte_string_fns.h>
> #include <rte_malloc.h>
>
> @@ -160,3 +160,54 @@ rte_cryptodev_pmd_destroy(struct rte_cryptodev
> *cryptodev)
>
> return 0;
> }
> +
> +static uint16_t
> +dummy_crypto_enqueue_burst(__rte_unused void *qp,
> + __rte_unused struct rte_crypto_op **ops,
> + __rte_unused uint16_t nb_ops)
> +{
> + CDEV_LOG_ERR(
> + "crypto enqueue burst requested for unconfigured device");
> + rte_errno = ENOTSUP;
> + return 0;
> +}
> +
> +static uint16_t
> +dummy_crypto_dequeue_burst(__rte_unused void *qp,
> + __rte_unused struct rte_crypto_op **ops,
> + __rte_unused uint16_t nb_ops)
> +{
> + CDEV_LOG_ERR(
> + "crypto dequeue burst requested for unconfigured device");
> + rte_errno = ENOTSUP;
> + return 0;
> +}
> +
> +void
> +cryptodev_fp_ops_reset(struct rte_crypto_fp_ops *fp_ops)
> +{
> + static struct rte_cryptodev_cb_rcu
> dummy_cb[RTE_MAX_QUEUES_PER_PORT];
> + static void *dummy_data[RTE_MAX_QUEUES_PER_PORT];
> + static const struct rte_crypto_fp_ops dummy = {
> + .enqueue_burst = dummy_crypto_enqueue_burst,
> + .dequeue_burst = dummy_crypto_dequeue_burst,
> + .qp = {
> + .data = dummy_data,
> + .enq_cb = dummy_cb,
> + .deq_cb = dummy_cb,
> + },
> + };
> +
> + *fp_ops = dummy;
> +}
> +
> +void
> +cryptodev_fp_ops_set(struct rte_crypto_fp_ops *fp_ops,
> + const struct rte_cryptodev *dev)
> +{
> + fp_ops->enqueue_burst = dev->enqueue_burst;
> + fp_ops->dequeue_burst = dev->dequeue_burst;
> + fp_ops->qp.data = dev->data->queue_pairs;
> + fp_ops->qp.enq_cb = dev->enq_cbs;
> + fp_ops->qp.deq_cb = dev->deq_cbs;
> +}
> diff --git a/lib/cryptodev/cryptodev_pmd.h
> b/lib/cryptodev/cryptodev_pmd.h
> index 36606dd10b..a71edbb991 100644
> --- a/lib/cryptodev/cryptodev_pmd.h
> +++ b/lib/cryptodev/cryptodev_pmd.h
> @@ -516,6 +516,17 @@ RTE_INIT(init_ ##driver_id)\
> driver_id = rte_cryptodev_allocate_driver(&crypto_drv, &(drv));\
> }
>
> +/* Reset crypto device fastpath APIs to dummy values. */
> +__rte_internal
> +void
> +cryptodev_fp_ops_reset(struct rte_crypto_fp_ops *fp_ops);
> +
> +/* Setup crypto device fastpath APIs. */
> +__rte_internal
> +void
> +cryptodev_fp_ops_set(struct rte_crypto_fp_ops *fp_ops,
> + const struct rte_cryptodev *dev);
> +
> static inline void *
> get_sym_session_private_data(const struct rte_cryptodev_sym_session
> *sess,
> uint8_t driver_id) {
> diff --git a/lib/cryptodev/rte_cryptodev.c b/lib/cryptodev/rte_cryptodev.c
> index eb86e629aa..305e013ebb 100644
> --- a/lib/cryptodev/rte_cryptodev.c
> +++ b/lib/cryptodev/rte_cryptodev.c
> @@ -53,6 +53,9 @@ static struct rte_cryptodev_global cryptodev_globals = {
> .nb_devs = 0
> };
>
> +/* Public fastpath APIs. */
> +struct rte_crypto_fp_ops rte_crypto_fp_ops[RTE_CRYPTO_MAX_DEVS];
> +
> /* spinlock for crypto device callbacks */
> static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;
>
> @@ -917,6 +920,8 @@ rte_cryptodev_pmd_release_device(struct
> rte_cryptodev *cryptodev)
>
> dev_id = cryptodev->data->dev_id;
>
> + cryptodev_fp_ops_reset(rte_crypto_fp_ops + dev_id);
> +
> /* Close device only if device operations have been set */
> if (cryptodev->dev_ops) {
> ret = rte_cryptodev_close(dev_id);
> @@ -1080,6 +1085,9 @@ rte_cryptodev_start(uint8_t dev_id)
> }
>
> diag = (*dev->dev_ops->dev_start)(dev);
> + /* expose selection of PMD fast-path functions */
> + cryptodev_fp_ops_set(rte_crypto_fp_ops + dev_id, dev);
> +
> rte_cryptodev_trace_start(dev_id, diag);
> if (diag == 0)
> dev->data->dev_started = 1;
> @@ -1109,6 +1117,9 @@ rte_cryptodev_stop(uint8_t dev_id)
> return;
> }
>
> + /* point fast-path functions to dummy ones */
> + cryptodev_fp_ops_reset(rte_crypto_fp_ops + dev_id);
> +
> (*dev->dev_ops->dev_stop)(dev);
> rte_cryptodev_trace_stop(dev_id);
> dev->data->dev_started = 0;
> @@ -2411,3 +2422,11 @@ rte_cryptodev_allocate_driver(struct
> cryptodev_driver *crypto_drv,
>
> return nb_drivers++;
> }
> +
> +RTE_INIT(cryptodev_init_fp_ops)
> +{
> + uint32_t i;
> +
> + for (i = 0; i != RTE_DIM(rte_crypto_fp_ops); i++)
> + cryptodev_fp_ops_reset(rte_crypto_fp_ops + i);
> +}
> diff --git a/lib/cryptodev/rte_cryptodev_core.h
> b/lib/cryptodev/rte_cryptodev_core.h
> index 1633e55889..e9e9a44b3c 100644
> --- a/lib/cryptodev/rte_cryptodev_core.h
> +++ b/lib/cryptodev/rte_cryptodev_core.h
> @@ -25,6 +25,35 @@ typedef uint16_t (*enqueue_pkt_burst_t)(void *qp,
> struct rte_crypto_op **ops, uint16_t nb_ops);
> /**< Enqueue packets for processing on queue pair of a device. */
>
> +/**
> + * @internal
> + * Structure used to hold opaque pointers to internal ethdev Rx/Tx
> + * queues data.
> + * The main purpose to expose these pointers at all - allow compiler
> + * to fetch this data for fast-path cryptodev inline functions in advance.
> + */
> +struct rte_cryptodev_qpdata {
> + /** points to array of internal queue pair data pointers. */
> + void **data;
> + /** points to array of enqueue callback data pointers */
> + struct rte_cryptodev_cb_rcu *enq_cb;
> + /** points to array of dequeue callback data pointers */
> + struct rte_cryptodev_cb_rcu *deq_cb;
> +};
> +
> +struct rte_crypto_fp_ops {
> + /** PMD enqueue burst function. */
> + enqueue_pkt_burst_t enqueue_burst;
> + /** PMD dequeue burst function. */
> + dequeue_pkt_burst_t dequeue_burst;
> + /** Internal queue pair data pointers. */
> + struct rte_cryptodev_qpdata qp;
> + /** Reserved for future ops. */
> + uintptr_t reserved[4];
> +} __rte_cache_aligned;
> +
> +extern struct rte_crypto_fp_ops
> rte_crypto_fp_ops[RTE_CRYPTO_MAX_DEVS];
> +
> /**
> * @internal
> * The data part, with no function pointers, associated with each device.
> diff --git a/lib/cryptodev/version.map b/lib/cryptodev/version.map
> index 43cf937e40..ed62ced221 100644
> --- a/lib/cryptodev/version.map
> +++ b/lib/cryptodev/version.map
> @@ -45,6 +45,9 @@ DPDK_22 {
> rte_cryptodev_sym_session_init;
> rte_cryptodevs;
>
> + #added in 21.11
> + rte_crypto_fp_ops;
> +
> local: *;
> };
>
> @@ -109,6 +112,8 @@ EXPERIMENTAL {
> INTERNAL {
> global:
>
> + cryptodev_fp_ops_reset;
> + cryptodev_fp_ops_set;
> rte_cryptodev_allocate_driver;
> rte_cryptodev_pmd_allocate;
> rte_cryptodev_pmd_callback_process;
> --
> 2.25.1
