> From: Hemant Agrawal [mailto:[email protected]] > Sent: Tuesday, 18 August 2026 13.17 > To: [email protected]; [email protected]; [email protected] > Subject: [PATCH v12 16/26] net/dpaa: add Tx rate limiting API > > Add a DPAA PMD API to configure the transmit rate limit (rate and > burst) on a DPAA port, using the FMAN port rate limiter. > > Signed-off-by: Hemant Agrawal <[email protected]> > --- > diff --git a/drivers/net/dpaa/rte_pmd_dpaa.h > b/drivers/net/dpaa/rte_pmd_dpaa.h > index 0a57e2097a..680ff387f8 100644 > --- a/drivers/net/dpaa/rte_pmd_dpaa.h > +++ b/drivers/net/dpaa/rte_pmd_dpaa.h > @@ -1,11 +1,12 @@ > /* SPDX-License-Identifier: BSD-3-Clause > - * Copyright 2018 NXP > + * Copyright 2018,2022 NXP > */ > > #ifndef _PMD_DPAA_H_ > #define _PMD_DPAA_H_ > > #include <stdint.h> > +#include <rte_compat.h> > > /** > * @file rte_pmd_dpaa.h > @@ -33,4 +34,24 @@ > int > rte_pmd_dpaa_set_tx_loopback(uint16_t port, uint8_t on); > > +/** > + * Set TX rate limit > + * > + * @param port_id > + * The port identifier of the Ethernet device. > + * @param burst > + * Max burst size(KBytes) of the Ethernet device. > + * 0 - Disable TX rate limit. > + * @param rate > + * Max rate(Kb/sec) of the Ethernet device. > + * 0 - Disable TX rate limit. > + * @return > + * 0 - if successful. > + * <0 - if failed, with proper error code. > + */ > +__rte_experimental > +int > +rte_pmd_dpaa_port_set_rate_limit(uint16_t port_id, uint16_t burst, > + uint32_t rate); > + > #endif /* _PMD_DPAA_H_ */ > -- > 2.25.1
We already have a generic API for per-queue TX rate limit: rte_eth_set_queue_rate_limit(). Let's have a generic API for per-port TX rate limit, instead of a device-specific API. The per-queue API doesn't support burst size, but the per-port API could. It could be noted in the API description that if a port doesn't support burst capacity, the "burst" parameter will be ignored.
