/**
* Convert DPDK RSS hash fields to their Verbs equivalent.
*
+ * This function returns the supported (default) set when @p rss_hf has
+ * special value (uint64_t)-1.
+ *
+ * @param priv
+ * Pointer to private structure.
* @param rss_hf
* Hash fields in DPDK format (see struct rte_eth_rss_conf).
*
* A valid Verbs RSS hash fields mask for mlx4 on success, (uint64_t)-1
* otherwise and rte_errno is set.
*/
-static uint64_t
-mlx4_conv_rss_hf(uint64_t rss_hf)
+uint64_t
+mlx4_conv_rss_hf(struct priv *priv, uint64_t rss_hf)
{
enum { IPV4, IPV6, TCP, UDP, };
const uint64_t in[] = {
[TCP] = (ETH_RSS_NONFRAG_IPV4_TCP |
ETH_RSS_NONFRAG_IPV6_TCP |
ETH_RSS_IPV6_TCP_EX),
- /*
- * UDP support is temporarily disabled due to an
- * implementation issue in the kernel.
- */
- [UDP] = 0,
+ [UDP] = (ETH_RSS_NONFRAG_IPV4_UDP |
+ ETH_RSS_NONFRAG_IPV6_UDP |
+ ETH_RSS_IPV6_UDP_EX),
};
const uint64_t out[RTE_DIM(in)] = {
[IPV4] = IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4,
seen |= rss_hf & in[i];
conv |= out[i];
}
- if (!(rss_hf & ~seen))
- return conv;
+ if ((conv & priv->hw_rss_sup) == conv) {
+ if (rss_hf == (uint64_t)-1)
+ return conv;
+ if (!(rss_hf & ~seen))
+ return conv;
+ }
rte_errno = ENOTSUP;
return (uint64_t)-1;
}
if (flow->rss)
break;
queue = action->conf;
+ if (queue->index >= priv->dev->data->nb_rx_queues) {
+ msg = "queue target index beyond number of"
+ " configured Rx queues";
+ goto exit_action_not_supported;
+ }
flow->rss = mlx4_rss_get
(priv, 0, mlx4_rss_hash_key_default, 1,
&queue->index);
&(struct rte_eth_rss_conf){
.rss_key = mlx4_rss_hash_key_default,
.rss_key_len = MLX4_RSS_HASH_KEY_SIZE,
- .rss_hf = (ETH_RSS_IPV4 |
- ETH_RSS_NONFRAG_IPV4_TCP |
- ETH_RSS_IPV6 |
- ETH_RSS_NONFRAG_IPV6_TCP),
+ .rss_hf = -1,
};
/* Sanity checks. */
+ for (i = 0; i < rss->num; ++i)
+ if (rss->queue[i] >=
+ priv->dev->data->nb_rx_queues)
+ break;
+ if (i != rss->num) {
+ msg = "queue index target beyond number of"
+ " configured Rx queues";
+ goto exit_action_not_supported;
+ }
if (!rte_is_power_of_2(rss->num)) {
msg = "for RSS, mlx4 requires the number of"
" queues to be a power of two";
goto exit_action_not_supported;
}
flow->rss = mlx4_rss_get
- (priv, mlx4_conv_rss_hf(rss_conf->rss_hf),
+ (priv,
+ mlx4_conv_rss_hf(priv, rss_conf->rss_hf),
rss_conf->rss_key, rss->num, rss->queue);
if (!flow->rss) {
msg = "either invalid parameters or not enough"