From: Tomasz Kulasek Date: Fri, 23 Dec 2016 18:40:50 +0000 (+0100) Subject: net/i40e: add Tx preparation X-Git-Tag: spdx-start~5211 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=3f33e643e5c6;p=dpdk.git net/i40e: add Tx preparation Signed-off-by: Tomasz Kulasek Acked-by: Konstantin Ananyev --- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index c9ba789133..0eb4c990ad 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -945,6 +945,7 @@ eth_i40e_dev_init(struct rte_eth_dev *dev) dev->dev_ops = &i40e_eth_dev_ops; dev->rx_pkt_burst = i40e_recv_pkts; dev->tx_pkt_burst = i40e_xmit_pkts; + dev->tx_pkt_prepare = i40e_prep_pkts; /* for secondary processes, we don't initialise any further as primary * has already done this work. Only check we don't need a different @@ -2664,6 +2665,8 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) .nb_max = I40E_MAX_RING_DESC, .nb_min = I40E_MIN_RING_DESC, .nb_align = I40E_ALIGN_RING_DESC, + .nb_seg_max = I40E_TX_MAX_SEG, + .nb_mtu_seg_max = I40E_TX_MAX_MTU_SEG, }; if (pf->flags & I40E_FLAG_VMDQ) { diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 7ae7d9fb87..1c9a6c8101 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_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. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -50,6 +50,8 @@ #include #include #include +#include +#include #include "i40e_logs.h" #include "base/i40e_prototype.h" @@ -79,6 +81,17 @@ PKT_TX_TCP_SEG | \ PKT_TX_OUTER_IP_CKSUM) +#define I40E_TX_OFFLOAD_MASK ( \ + PKT_TX_IP_CKSUM | \ + PKT_TX_L4_MASK | \ + PKT_TX_OUTER_IP_CKSUM | \ + PKT_TX_TCP_SEG | \ + PKT_TX_QINQ_PKT | \ + PKT_TX_VLAN_PKT) + +#define I40E_TX_OFFLOAD_NOTSUP_MASK \ + (PKT_TX_OFFLOAD_MASK ^ I40E_TX_OFFLOAD_MASK) + static uint16_t i40e_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); @@ -1411,6 +1424,63 @@ i40e_xmit_pkts_simple(void *tx_queue, return nb_tx; } +/********************************************************************* + * + * TX prep functions + * + **********************************************************************/ +uint16_t +i40e_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + int i, ret; + uint64_t ol_flags; + struct rte_mbuf *m; + + for (i = 0; i < nb_pkts; i++) { + m = tx_pkts[i]; + ol_flags = m->ol_flags; + + /** + * m->nb_segs is uint8_t, so nb_segs is always less than + * I40E_TX_MAX_SEG. + * We check only a condition for nb_segs > I40E_TX_MAX_MTU_SEG. + */ + if (!(ol_flags & PKT_TX_TCP_SEG)) { + if (m->nb_segs > I40E_TX_MAX_MTU_SEG) { + rte_errno = -EINVAL; + return i; + } + } else if ((m->tso_segsz < I40E_MIN_TSO_MSS) || + (m->tso_segsz > I40E_MAX_TSO_MSS)) { + /* MSS outside the range (256B - 9674B) are considered + * malicious + */ + rte_errno = -EINVAL; + return i; + } + + if (ol_flags & I40E_TX_OFFLOAD_NOTSUP_MASK) { + rte_errno = -ENOTSUP; + return i; + } + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + ret = rte_validate_tx_offload(m); + if (ret != 0) { + rte_errno = ret; + return i; + } +#endif + ret = rte_net_intel_cksum_prepare(m); + if (ret != 0) { + rte_errno = ret; + return i; + } + } + return i; +} + /* * Find the VSI the queue belongs to. 'queue_idx' is the queue index * application used, which assume having sequential ones. But from driver's @@ -2763,9 +2833,11 @@ i40e_set_tx_function(struct rte_eth_dev *dev) PMD_INIT_LOG(DEBUG, "Simple tx finally be used."); dev->tx_pkt_burst = i40e_xmit_pkts_simple; } + dev->tx_pkt_prepare = NULL; } else { PMD_INIT_LOG(DEBUG, "Xmit tx finally be used."); dev->tx_pkt_burst = i40e_xmit_pkts; + dev->tx_pkt_prepare = i40e_prep_pkts; } } diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h index ecdb13cb54..9df8a56fac 100644 --- a/drivers/net/i40e/i40e_rxtx.h +++ b/drivers/net/i40e/i40e_rxtx.h @@ -63,6 +63,12 @@ #define I40E_MIN_RING_DESC 64 #define I40E_MAX_RING_DESC 4096 +#define I40E_MIN_TSO_MSS 256 +#define I40E_MAX_TSO_MSS 9674 + +#define I40E_TX_MAX_SEG UINT8_MAX +#define I40E_TX_MAX_MTU_SEG 8 + #undef container_of #define container_of(ptr, type, member) ({ \ typeof(((type *)0)->member)(*__mptr) = (ptr); \ @@ -223,6 +229,8 @@ uint16_t i40e_recv_scattered_pkts(void *rx_queue, uint16_t i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); +uint16_t i40e_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); int i40e_tx_queue_init(struct i40e_tx_queue *txq); int i40e_rx_queue_init(struct i40e_rx_queue *rxq); void i40e_free_tx_resources(struct i40e_tx_queue *txq);