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authorDekel Peled <dekelp@mellanox.com>2018-10-23 22:34:09 +0300
committerFerruh Yigit <ferruh.yigit@intel.com>2018-10-26 22:14:06 +0200
commit6bd7fbd03c6282689415ea3ff99622a631109984 (patch)
treea9d7e061c52aeb131b9a88a751eafb7e423696f3 /drivers/net/mlx5/mlx5_rxtx_vec.c
parent3c90743dd3b9d8ad461b5d5483006de5ac38045c (diff)
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net/mlx5: support metadata as flow rule criteria
As described in series starting at [1], it adds option to set metadata value as match pattern when creating a new flow rule. This patch adds metadata support in mlx5 driver, in two parts: - Add the validation and setting of metadata value in matcher, when creating a new flow rule. - Add the passing of metadata value from mbuf to wqe when indicated by ol_flag, in different burst functions. [1] "ethdev: support metadata as flow rule criteria" http://mails.dpdk.org/archives/dev/2018-September/113269.html Signed-off-by: Dekel Peled <dekelp@mellanox.com> Acked-by: Shahaf Shuler <shahafs@mellanox.com>
Diffstat (limited to 'drivers/net/mlx5/mlx5_rxtx_vec.c')
-rw-r--r--drivers/net/mlx5/mlx5_rxtx_vec.c46
1 files changed, 35 insertions, 11 deletions
diff --git a/drivers/net/mlx5/mlx5_rxtx_vec.c b/drivers/net/mlx5/mlx5_rxtx_vec.c
index 0a4aed8..1453f4f 100644
--- a/drivers/net/mlx5/mlx5_rxtx_vec.c
+++ b/drivers/net/mlx5/mlx5_rxtx_vec.c
@@ -40,7 +40,8 @@
#endif
/**
- * Count the number of packets having same ol_flags and calculate cs_flags.
+ * Count the number of packets having same ol_flags and same metadata (if
+ * PKT_TX_METADATA is set in ol_flags), and calculate cs_flags.
*
* @param pkts
* Pointer to array of packets.
@@ -48,26 +49,45 @@
* Number of packets.
* @param cs_flags
* Pointer of flags to be returned.
+ * @param metadata
+ * Pointer of metadata to be returned.
+ * @param txq_offloads
+ * Offloads enabled on Tx queue
*
* @return
- * Number of packets having same ol_flags.
+ * Number of packets having same ol_flags and metadata, if relevant.
*/
static inline unsigned int
-txq_calc_offload(struct rte_mbuf **pkts, uint16_t pkts_n, uint8_t *cs_flags)
+txq_calc_offload(struct rte_mbuf **pkts, uint16_t pkts_n, uint8_t *cs_flags,
+ rte_be32_t *metadata, const uint64_t txq_offloads)
{
unsigned int pos;
- const uint64_t ol_mask =
+ const uint64_t cksum_ol_mask =
PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM |
PKT_TX_UDP_CKSUM | PKT_TX_TUNNEL_GRE |
PKT_TX_TUNNEL_VXLAN | PKT_TX_OUTER_IP_CKSUM;
+ rte_be32_t p0_metadata, pn_metadata;
if (!pkts_n)
return 0;
- /* Count the number of packets having same ol_flags. */
- for (pos = 1; pos < pkts_n; ++pos)
- if ((pkts[pos]->ol_flags ^ pkts[0]->ol_flags) & ol_mask)
+ p0_metadata = pkts[0]->ol_flags & PKT_TX_METADATA ?
+ pkts[0]->tx_metadata : 0;
+ /* Count the number of packets having same offload parameters. */
+ for (pos = 1; pos < pkts_n; ++pos) {
+ /* Check if packet has same checksum flags. */
+ if ((txq_offloads & MLX5_VEC_TX_CKSUM_OFFLOAD_CAP) &&
+ ((pkts[pos]->ol_flags ^ pkts[0]->ol_flags) & cksum_ol_mask))
break;
+ /* Check if packet has same metadata. */
+ if (txq_offloads & DEV_TX_OFFLOAD_MATCH_METADATA) {
+ pn_metadata = pkts[pos]->ol_flags & PKT_TX_METADATA ?
+ pkts[pos]->tx_metadata : 0;
+ if (pn_metadata != p0_metadata)
+ break;
+ }
+ }
*cs_flags = txq_ol_cksum_to_cs(pkts[0]);
+ *metadata = p0_metadata;
return pos;
}
@@ -96,7 +116,7 @@ mlx5_tx_burst_raw_vec(void *dpdk_txq, struct rte_mbuf **pkts,
uint16_t ret;
n = RTE_MIN((uint16_t)(pkts_n - nb_tx), MLX5_VPMD_TX_MAX_BURST);
- ret = txq_burst_v(txq, &pkts[nb_tx], n, 0);
+ ret = txq_burst_v(txq, &pkts[nb_tx], n, 0, 0);
nb_tx += ret;
if (!ret)
break;
@@ -127,6 +147,7 @@ mlx5_tx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
uint8_t cs_flags = 0;
uint16_t n;
uint16_t ret;
+ rte_be32_t metadata = 0;
/* Transmit multi-seg packets in the head of pkts list. */
if ((txq->offloads & DEV_TX_OFFLOAD_MULTI_SEGS) &&
@@ -137,9 +158,12 @@ mlx5_tx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
n = RTE_MIN((uint16_t)(pkts_n - nb_tx), MLX5_VPMD_TX_MAX_BURST);
if (txq->offloads & DEV_TX_OFFLOAD_MULTI_SEGS)
n = txq_count_contig_single_seg(&pkts[nb_tx], n);
- if (txq->offloads & MLX5_VEC_TX_CKSUM_OFFLOAD_CAP)
- n = txq_calc_offload(&pkts[nb_tx], n, &cs_flags);
- ret = txq_burst_v(txq, &pkts[nb_tx], n, cs_flags);
+ if (txq->offloads & (MLX5_VEC_TX_CKSUM_OFFLOAD_CAP |
+ DEV_TX_OFFLOAD_MATCH_METADATA))
+ n = txq_calc_offload(&pkts[nb_tx], n,
+ &cs_flags, &metadata,
+ txq->offloads);
+ ret = txq_burst_v(txq, &pkts[nb_tx], n, cs_flags, metadata);
nb_tx += ret;
if (!ret)
break;