From: Andrew Rybchenko Date: Fri, 20 Jan 2017 15:22:56 +0000 (+0000) Subject: net/sfc: enable TSO by default X-Git-Tag: spdx-start~4617 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=2a5a433ba5f40534c6e05eca3957ac85c79ef758;p=dpdk.git net/sfc: enable TSO by default Remove RTE_LIBRTE_SFC_EFX_TSO config option since it is not required any more: - unreasonable limit on number of Tx queues when TSO is not actually required should be solved using per-device parameter - performance difference with and without TSO compiled in is small Signed-off-by: Andrew Rybchenko --- diff --git a/config/common_base b/config/common_base index 0dae964abc..71a4fcb4c7 100644 --- a/config/common_base +++ b/config/common_base @@ -261,7 +261,6 @@ CONFIG_RTE_LIBRTE_BNXT_PMD=y # CONFIG_RTE_LIBRTE_SFC_EFX_PMD=y CONFIG_RTE_LIBRTE_SFC_EFX_DEBUG=n -CONFIG_RTE_LIBRTE_SFC_EFX_TSO=n # # Compile software PMD backed by SZEDATA2 device diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst index 6be4fba97e..0a05a0a238 100644 --- a/doc/guides/nics/sfc_efx.rst +++ b/doc/guides/nics/sfc_efx.rst @@ -171,12 +171,6 @@ Please note that enabling debugging options may affect system performance. Enable compilation of the extra run-time consistency checks. -- ``CONFIG_RTE_LIBRTE_SFC_EFX_TSO`` (default **n**) - - Toggle TCP segmentation offload support. - Enabling the feature limits the number of available transmit queues - significantly due to the limited number of adapter TSO contexts. - Per-Device Parameters ~~~~~~~~~~~~~~~~~~~~~ diff --git a/drivers/net/sfc/Makefile b/drivers/net/sfc/Makefile index 14d6536a7b..619a0edd13 100644 --- a/drivers/net/sfc/Makefile +++ b/drivers/net/sfc/Makefile @@ -89,8 +89,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_ev.c SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_port.c SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_rx.c SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_tx.c - -SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_TSO) += sfc_tso.c +SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_tso.c VPATH += $(SRCDIR)/base @@ -140,7 +139,6 @@ DEPDIRS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += lib/librte_kvargs DEPDIRS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += lib/librte_ether DEPDIRS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += lib/librte_mempool DEPDIRS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += lib/librte_mbuf - -DEPDIRS-$(CONFIG_RTE_LIBRTE_SFC_EFX_TSO) += lib/librte_net +DEPDIRS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += lib/librte_net include $(RTE_SDK)/mk/rte.lib.mk diff --git a/drivers/net/sfc/sfc.c b/drivers/net/sfc/sfc.c index 648ad8c588..457a53eebc 100644 --- a/drivers/net/sfc/sfc.c +++ b/drivers/net/sfc/sfc.c @@ -621,13 +621,9 @@ sfc_attach(struct sfc_adapter *sa) if (rc != 0) goto fail_set_rss_defaults; -#ifdef RTE_LIBRTE_SFC_EFX_TSO sa->tso = efx_nic_cfg_get(sa->nic)->enc_fw_assisted_tso_v2_enabled; if (!sa->tso) sfc_warn(sa, "TSO support isn't available on this adapter"); -#else /* !RTE_LIBRTE_SFC_EFX_TSO */ - sa->tso = B_FALSE; -#endif /* RTE_LIBRTE_SFC_EFX_TSO */ sfc_log_init(sa, "fini nic"); efx_nic_fini(enp); diff --git a/drivers/net/sfc/sfc_tx.c b/drivers/net/sfc/sfc_tx.c index 3e64c0f0c2..e772584326 100644 --- a/drivers/net/sfc/sfc_tx.c +++ b/drivers/net/sfc/sfc_tx.c @@ -650,7 +650,6 @@ sfc_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) */ pkt_descs += sfc_tx_maybe_insert_tag(txq, m_seg, &pend); -#ifdef RTE_LIBRTE_SFC_EFX_TSO if (m_seg->ol_flags & PKT_TX_TCP_SEG) { /* * We expect correct 'pkt->l[2, 3, 4]_len' values @@ -688,7 +687,6 @@ sfc_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) * as for the usual non-TSO path */ } -#endif /* RTE_LIBRTE_SFC_EFX_TSO */ for (; m_seg != NULL; m_seg = m_seg->next) { efsys_dma_addr_t next_frag; diff --git a/drivers/net/sfc/sfc_tx.h b/drivers/net/sfc/sfc_tx.h index 581e2aa6bd..39977a51b2 100644 --- a/drivers/net/sfc/sfc_tx.h +++ b/drivers/net/sfc/sfc_tx.h @@ -50,9 +50,7 @@ struct sfc_evq; struct sfc_tx_sw_desc { struct rte_mbuf *mbuf; -#ifdef RTE_LIBRTE_SFC_EFX_TSO uint8_t *tsoh; /* Buffer to store TSO header */ -#endif /* RTE_LIBRTE_SFC_EFX_TSO */ }; enum sfc_txq_state_bit { @@ -116,7 +114,6 @@ void sfc_tx_stop(struct sfc_adapter *sa); uint16_t sfc_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); -#ifdef RTE_LIBRTE_SFC_EFX_TSO /* From 'sfc_tso.c' */ int sfc_tso_alloc_tsoh_objs(struct sfc_tx_sw_desc *sw_ring, unsigned int txq_entries, unsigned int socket_id); @@ -125,21 +122,6 @@ void sfc_tso_free_tsoh_objs(struct sfc_tx_sw_desc *sw_ring, int sfc_tso_do(struct sfc_txq *txq, unsigned int idx, struct rte_mbuf **in_seg, size_t *in_off, efx_desc_t **pend, unsigned int *pkt_descs, size_t *pkt_len); -#else /* !RTE_LIBRTE_SFC_EFX_TSO */ -static inline int -sfc_tso_alloc_tsoh_objs(__rte_unused struct sfc_tx_sw_desc *sw_ring, - __rte_unused unsigned int txq_entries, - __rte_unused unsigned int socket_id) -{ - return 0; -} - -static inline void -sfc_tso_free_tsoh_objs(__rte_unused struct sfc_tx_sw_desc *sw_ring, - __rte_unused unsigned int txq_entries) -{ -} -#endif /* RTE_LIBRTE_SFC_EFX_TSO */ #ifdef __cplusplus }