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null: add virtual RSS configuration

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This implementation allows to set and read RSS configuration for null
device, and is used to validate right values propagation over the slaves,
in test units for dynamic RSS configuration for bonding.

Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Acked-by: Tetsuya Mukawa <mukawa@igel.co.jp>
This commit is contained in:
Tomasz Kulasek 2015-10-30 15:25:52 +01:00 committed by Thomas Monjalon
parent ca5752795f
commit 1ccec0a8cd
1 changed files with 115 additions and 0 deletions
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115
drivers/net/null/rte_eth_null.c
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@ -37,6 +37,7 @@
#include <rte_memcpy.h>
#include <rte_dev.h>
#include <rte_kvargs.h>
#include <rte_spinlock.h>
#include "rte_eth_null.h"
@ -75,6 +76,17 @@ struct pmd_internals {
struct null_queue rx_null_queues[RTE_MAX_QUEUES_PER_PORT];
struct null_queue tx_null_queues[RTE_MAX_QUEUES_PER_PORT];
/** Bit mask of RSS offloads, the bit offset also means flow type */
uint64_t flow_type_rss_offloads;
rte_spinlock_t rss_lock;
uint16_t reta_size;
struct rte_eth_rss_reta_entry64 reta_conf[ETH_RSS_RETA_SIZE_128 /
RTE_RETA_GROUP_SIZE];
uint8_t rss_key[40]; /**< 40-byte hash key. */
};
@ -295,6 +307,8 @@ eth_dev_info(struct rte_eth_dev *dev,
dev_info->max_tx_queues = RTE_DIM(internals->tx_null_queues);
dev_info->min_rx_bufsize = 0;
dev_info->pci_dev = NULL;
dev_info->reta_size = internals->reta_size;
dev_info->flow_type_rss_offloads = internals->flow_type_rss_offloads;
}
static void
@ -375,6 +389,91 @@ static int
eth_link_update(struct rte_eth_dev *dev __rte_unused,
int wait_to_complete __rte_unused) { return 0; }
static int
eth_rss_reta_update(struct rte_eth_dev *dev,
struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size)
{
int i, j;
struct pmd_internals *internal = dev->data->dev_private;
if (reta_size != internal->reta_size)
return -EINVAL;
rte_spinlock_lock(&internal->rss_lock);
/* Copy RETA table */
for (i = 0; i < (internal->reta_size / RTE_RETA_GROUP_SIZE); i++) {
internal->reta_conf[i].mask = reta_conf[i].mask;
for (j = 0; j < RTE_RETA_GROUP_SIZE; j++)
if ((reta_conf[i].mask >> j) & 0x01)
internal->reta_conf[i].reta[j] = reta_conf[i].reta[j];
}
rte_spinlock_unlock(&internal->rss_lock);
return 0;
}
static int
eth_rss_reta_query(struct rte_eth_dev *dev,
struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size)
{
int i, j;
struct pmd_internals *internal = dev->data->dev_private;
if (reta_size != internal->reta_size)
return -EINVAL;
rte_spinlock_lock(&internal->rss_lock);
/* Copy RETA table */
for (i = 0; i < (internal->reta_size / RTE_RETA_GROUP_SIZE); i++) {
for (j = 0; j < RTE_RETA_GROUP_SIZE; j++)
if ((reta_conf[i].mask >> j) & 0x01)
reta_conf[i].reta[j] = internal->reta_conf[i].reta[j];
}
rte_spinlock_unlock(&internal->rss_lock);
return 0;
}
static int
eth_rss_hash_update(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf)
{
struct pmd_internals *internal = dev->data->dev_private;
rte_spinlock_lock(&internal->rss_lock);
if ((rss_conf->rss_hf & internal->flow_type_rss_offloads) != 0)
dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf =
rss_conf->rss_hf & internal->flow_type_rss_offloads;
if (rss_conf->rss_key)
rte_memcpy(internal->rss_key, rss_conf->rss_key, 40);
rte_spinlock_unlock(&internal->rss_lock);
return 0;
}
static int
eth_rss_hash_conf_get(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf)
{
struct pmd_internals *internal = dev->data->dev_private;
rte_spinlock_lock(&internal->rss_lock);
rss_conf->rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;
if (rss_conf->rss_key)
rte_memcpy(rss_conf->rss_key, internal->rss_key, 40);
rte_spinlock_unlock(&internal->rss_lock);
return 0;
}
static const struct eth_dev_ops ops = {
.dev_start = eth_dev_start,
.dev_stop = eth_dev_stop,
@ -387,6 +486,10 @@ static const struct eth_dev_ops ops = {
.link_update = eth_link_update,
.stats_get = eth_stats_get,
.stats_reset = eth_stats_reset,
.reta_update = eth_rss_reta_update,
.reta_query = eth_rss_reta_query,
.rss_hash_update = eth_rss_hash_update,
.rss_hash_conf_get = eth_rss_hash_conf_get
};
int
@ -402,6 +505,13 @@ eth_dev_null_create(const char *name,
struct pmd_internals *internals = NULL;
struct rte_eth_dev *eth_dev = NULL;
static const uint8_t default_rss_key[40] = {
0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2, 0x41, 0x67, 0x25, 0x3D,
0x43, 0xA3, 0x8F, 0xB0, 0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C, 0x6A, 0x42, 0xB7, 0x3B,
0xBE, 0xAC, 0x01, 0xFA
};
if (name == NULL)
return -EINVAL;
@ -443,6 +553,11 @@ eth_dev_null_create(const char *name,
internals->packet_copy = packet_copy;
internals->numa_node = numa_node;
internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK;
internals->reta_size = RTE_DIM(internals->reta_conf) * RTE_RETA_GROUP_SIZE;
rte_memcpy(internals->rss_key, default_rss_key, 40);
pci_dev->numa_node = numa_node;
pci_dev->driver = &rte_null_pmd.pci_drv;