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ethdev: add function to look up Rx offload names

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Commonly, drivers converted to the new offload API
may need to log unsupported offloads as a response
to wrong settings. From this perspective, it would
be convenient to have generic functions to look up
offload names. The patch adds such a helper for Rx.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
This commit is contained in:
Ivan Malov 2018-01-18 09:44:26 +00:00 committed by Ferruh Yigit
parent 66070f08b2
commit b8afc069fa
3 changed files with 61 additions and 0 deletions
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42
lib/librte_ether/rte_ethdev.c
View File

@ -90,6 +90,32 @@ static const struct rte_eth_xstats_name_off rte_txq_stats_strings[] = {
#define RTE_NB_TXQ_STATS (sizeof(rte_txq_stats_strings) / \
sizeof(rte_txq_stats_strings[0]))
#define RTE_RX_OFFLOAD_BIT2STR(_name) \
{ DEV_RX_OFFLOAD_##_name, #_name }
static const struct {
uint64_t offload;
const char *name;
} rte_rx_offload_names[] = {
RTE_RX_OFFLOAD_BIT2STR(VLAN_STRIP),
RTE_RX_OFFLOAD_BIT2STR(IPV4_CKSUM),
RTE_RX_OFFLOAD_BIT2STR(UDP_CKSUM),
RTE_RX_OFFLOAD_BIT2STR(TCP_CKSUM),
RTE_RX_OFFLOAD_BIT2STR(TCP_LRO),
RTE_RX_OFFLOAD_BIT2STR(QINQ_STRIP),
RTE_RX_OFFLOAD_BIT2STR(OUTER_IPV4_CKSUM),
RTE_RX_OFFLOAD_BIT2STR(MACSEC_STRIP),
RTE_RX_OFFLOAD_BIT2STR(HEADER_SPLIT),
RTE_RX_OFFLOAD_BIT2STR(VLAN_FILTER),
RTE_RX_OFFLOAD_BIT2STR(VLAN_EXTEND),
RTE_RX_OFFLOAD_BIT2STR(JUMBO_FRAME),
RTE_RX_OFFLOAD_BIT2STR(CRC_STRIP),
RTE_RX_OFFLOAD_BIT2STR(SCATTER),
RTE_RX_OFFLOAD_BIT2STR(TIMESTAMP),
RTE_RX_OFFLOAD_BIT2STR(SECURITY),
};
#undef RTE_RX_OFFLOAD_BIT2STR
/**
* The user application callback description.
@ -747,6 +773,22 @@ rte_eth_convert_rx_offloads(const uint64_t rx_offloads,
rxmode->security = 0;
}
const char *
rte_eth_dev_rx_offload_name(uint64_t offload)
{
const char *name = "UNKNOWN";
unsigned int i;
for (i = 0; i < RTE_DIM(rte_rx_offload_names); ++i) {
if (offload == rte_rx_offload_names[i].offload) {
name = rte_rx_offload_names[i].name;
break;
}
}
return name;
}
int
rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
const struct rte_eth_conf *dev_conf)

18
lib/librte_ether/rte_ethdev.h
View File

@ -946,6 +946,11 @@ struct rte_eth_conf {
DEV_RX_OFFLOAD_VLAN_FILTER | \
DEV_RX_OFFLOAD_VLAN_EXTEND)
/*
* If new Rx offload capabilities are defined, they also must be
* mentioned in rte_rx_offload_names in rte_ethdev.c file.
*/
/**
* TX offload capabilities of a device.
*/
@ -1922,6 +1927,19 @@ int rte_eth_dev_detach(uint16_t port_id, char *devname);
*/
uint32_t rte_eth_speed_bitflag(uint32_t speed, int duplex);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
* Get DEV_RX_OFFLOAD_* flag name.
*
* @param offload
* Offload flag.
* @return
* Offload name or 'UNKNOWN' if the flag cannot be recognised.
*/
const char *rte_eth_dev_rx_offload_name(uint64_t offload);
/**
* Configure an Ethernet device.
* This function must be invoked first before any other function in the

1
lib/librte_ether/rte_ethdev_version.map
View File

@ -208,6 +208,7 @@ DPDK_18.02 {
EXPERIMENTAL {
global:
rte_eth_dev_rx_offload_name;
rte_mtr_capabilities_get;
rte_mtr_create;
rte_mtr_destroy;