Hi Tomasz,
> ---
> drivers/net/ixgbe/ixgbe_ethdev.c | 3 ++
> drivers/net/ixgbe/ixgbe_ethdev.h | 8 +++-
> drivers/net/ixgbe/ixgbe_rxtx.c | 83
> +++++++++++++++++++++++++++++++++++++-
> drivers/net/ixgbe/ixgbe_rxtx.h | 2 +
> 4 files changed, 94 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index fb618ef..1509979 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -515,6 +515,8 @@ static const struct rte_eth_desc_lim tx_desc_lim = {
> .nb_max = IXGBE_MAX_RING_DESC,
> .nb_min = IXGBE_MIN_RING_DESC,
> .nb_align = IXGBE_TXD_ALIGN,
> + .nb_seg_max = IXGBE_TX_MAX_SEG,
> + .nb_mtu_seg_max = IXGBE_TX_MAX_SEG,
> };
>
> static const struct eth_dev_ops ixgbe_eth_dev_ops = { @@ -1101,6 +1103,7 @@
> eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev)
> eth_dev->dev_ops = &ixgbe_eth_dev_ops;
> eth_dev->rx_pkt_burst = &ixgbe_recv_pkts;
> eth_dev->tx_pkt_burst = &ixgbe_xmit_pkts;
> + eth_dev->tx_pkt_prep = &ixgbe_prep_pkts;
>
> /*
> * For secondary processes, we don't initialise any further as primary
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h
> b/drivers/net/ixgbe/ixgbe_ethdev.h
> index 4ff6338..09d96de 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.h
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.h
> @@ -1,7 +1,7 @@
> /*-
> * BSD LICENSE
> *
> - * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
> + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
> * All rights reserved.
> *
> * Redistribution and use in source and binary forms, with or without
> @@ -396,6 +396,12 @@ uint16_t ixgbe_xmit_pkts(void *tx_queue, struct rte_mbuf
> **tx_pkts, uint16_t ixgbe_xmit_pkts_simple(void
> *tx_queue, struct rte_mbuf **tx_pkts,
> uint16_t nb_pkts);
>
> +uint16_t ixgbe_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> + uint16_t nb_pkts);
> +
> +uint16_t ixgbe_prep_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
> + uint16_t nb_pkts);
> +
> int ixgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
> struct rte_eth_rss_conf *rss_conf);
>
> diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
> index 8a306b0..87defa0 100644
> --- a/drivers/net/ixgbe/ixgbe_rxtx.c
> +++ b/drivers/net/ixgbe/ixgbe_rxtx.c
> @@ -1,7 +1,7 @@
> /*-
> * BSD LICENSE
> *
> - * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
> + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
> * Copyright 2014 6WIND S.A.
> * All rights reserved.
> *
> @@ -71,6 +71,7 @@
> #include <rte_string_fns.h>
> #include <rte_errno.h>
> #include <rte_ip.h>
> +#include <rte_pkt.h>
>
> #include "ixgbe_logs.h"
> #include "base/ixgbe_api.h"
> @@ -906,6 +907,84 @@ end_of_tx:
>
> /*********************************************************************
> *
> + * TX prep functions
> + *
> +
> +**********************************************************************/
> +uint16_t
> +ixgbe_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t
> +nb_pkts) {
> + int i, ret;
> + struct rte_mbuf *m;
> + struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
> +
> + for (i = 0; i < nb_pkts; i++) {
> + m = tx_pkts[i];
> +
> + /**
> + * Check if packet meets requirements for number of segments
> + *
> + * NOTE: for ixgbe it's always (40 - WTHRESH) for both TSO and
> non-TSO
> + */
> +
> + if (m->nb_segs > IXGBE_TX_MAX_SEG - txq->wthresh) {
> + rte_errno = -EINVAL;
> + return i;
> + }
> +
> + if ((m->ol_flags & PKT_TX_OFFLOAD_MASK) !=
> + (m->ol_flags & IXGBE_TX_OFFLOAD_MASK)) {
As a nit, it probably makes sense to:
#define IXGBE_TX_OFFLOAD_NOTSUP_MASK (PKT_TX_OFFLOAD_MASK ^
IXGBE_TX_OFFLOAD_MASK)
and then here:
(m->ol_flags & IXGBE_TX_OFFLOAD_NOTSUP_MASK)
Might help to save few cycles.
> + rte_errno = -EINVAL;
> + return i;
> + }
> +
> +#ifdef RTE_LIBRTE_ETHDEV_DEBUG
> + ret = rte_validate_tx_offload(m);
> + if (ret != 0) {
> + rte_errno = ret;
> + return i;
> + }
> +#endif
> + ret = rte_phdr_cksum_fix(m);
We probable need to update rte_phdr_cksum_fix() to take
into account tx_offload outer lengths in case
PKT_TX_OUTER_IP_CKSUM is defined.
As both ixgbe and i40e can do it these days.
Sorry for not spotting that earlier.
> + if (ret != 0) {
> + rte_errno = ret;
> + return i;
> + }
> + }
> +
> + return i;
> +}
> +
> +/* ixgbe simple path as well as vector TX doesn't support tx offloads
> +*/ uint16_t ixgbe_prep_pkts_simple(void *tx_queue __rte_unused, struct
> +rte_mbuf **tx_pkts,
> + uint16_t nb_pkts)
> +{
> + int i;
> + struct rte_mbuf *m;
> + uint64_t ol_flags;
> +
> + for (i = 0; i < nb_pkts; i++) {
> + m = tx_pkts[i];
> + ol_flags = m->ol_flags;
> +
> + /* simple tx path doesn't support multi-segments */
> + if (m->nb_segs != 1) {
> + rte_errno = -EINVAL;
> + return i;
> + }
> +
> + /* For simple path (simple and vector) no tx offloads are
> supported */
> + if (ol_flags & PKT_TX_OFFLOAD_MASK) {
> + rte_errno = -EINVAL;
> + return i;
> + }
> + }
> +
> + return i;
> +}
> +
> +/*********************************************************************
> + *
> * RX functions
> *
> **********************************************************************/
> @@ -2290,6 +2369,7 @@ ixgbe_set_tx_function(struct rte_eth_dev *dev, struct
> ixgbe_tx_queue *txq)
> } else
> #endif
> dev->tx_pkt_burst = ixgbe_xmit_pkts_simple;
> + dev->tx_pkt_prep = ixgbe_prep_pkts_simple;
Shouldn't we setup ixgbe_prep_pkts_simple when vTX is selected too?
> } else {
> PMD_INIT_LOG(DEBUG, "Using full-featured tx code path");
> PMD_INIT_LOG(DEBUG,
> @@ -2301,6 +2381,7 @@ ixgbe_set_tx_function(struct rte_eth_dev *dev, struct
> ixgbe_tx_queue *txq)
> (unsigned long)txq->tx_rs_thresh,
> (unsigned long)RTE_PMD_IXGBE_TX_MAX_BURST);
> dev->tx_pkt_burst = ixgbe_xmit_pkts;
> + dev->tx_pkt_prep = ixgbe_prep_pkts;
> }
> }
>
> diff --git a/drivers/net/ixgbe/ixgbe_rxtx.h b/drivers/net/ixgbe/ixgbe_rxtx.h
> index 2608b36..7bbd9b8 100644
> --- a/drivers/net/ixgbe/ixgbe_rxtx.h
> +++ b/drivers/net/ixgbe/ixgbe_rxtx.h
> @@ -80,6 +80,8 @@
> #define RTE_IXGBE_WAIT_100_US 100
> #define RTE_IXGBE_VMTXSW_REGISTER_COUNT 2
>
> +#define IXGBE_TX_MAX_SEG 40
> +
> #define IXGBE_PACKET_TYPE_MASK_82599 0X7F
> #define IXGBE_PACKET_TYPE_MASK_X550 0X10FF
> #define IXGBE_PACKET_TYPE_MASK_TUNNEL 0XFF
> --
> 1.7.9.5
