From: David Harton Date: Thu, 16 May 2019 18:28:03 +0000 (-0400) Subject: net/i40e: eliminate weak symbols in data path X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=02ad704708c878f4a4670b475e15734f8f1af162;p=dpdk.git net/i40e: eliminate weak symbols in data path Use of weak symbols can hide makefile errors especially when custom makefiles are used. Removing the use of weak symbols to avoid a stub function being linked in production code. Signed-off-by: David Harton Acked-by: Bruce Richardson --- diff --git a/drivers/net/i40e/Makefile b/drivers/net/i40e/Makefile index 3f869a8d66..1c3bbe329f 100644 --- a/drivers/net/i40e/Makefile +++ b/drivers/net/i40e/Makefile @@ -89,6 +89,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += rte_pmd_i40e.c SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e_tm.c SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e_vf_representor.c +ifeq ($(CONFIG_RTE_LIBRTE_I40E_INC_VECTOR),y) ifeq ($(findstring RTE_MACHINE_CPUFLAG_AVX2,$(CFLAGS)),RTE_MACHINE_CPUFLAG_AVX2) CC_AVX2_SUPPORT=1 else @@ -103,9 +104,11 @@ else endif endif endif +endif ifeq ($(CC_AVX2_SUPPORT), 1) SRCS-$(CONFIG_RTE_LIBRTE_I40E_INC_VECTOR) += i40e_rxtx_vec_avx2.c + CFLAGS_i40e_rxtx.o += -DCC_AVX2_SUPPORT endif # install this header file diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 7618153e26..cd3d41f923 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -2934,7 +2934,7 @@ i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, static eth_rx_burst_t i40e_get_latest_rx_vec(bool scatter) { -#ifdef RTE_ARCH_X86 +#if defined(RTE_ARCH_X86) && defined(CC_AVX2_SUPPORT) if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2)) return scatter ? i40e_recv_scattered_pkts_vec_avx2 : i40e_recv_pkts_vec_avx2; @@ -2946,7 +2946,7 @@ i40e_get_latest_rx_vec(bool scatter) static eth_rx_burst_t i40e_get_recommend_rx_vec(bool scatter) { -#ifdef RTE_ARCH_X86 +#if defined(RTE_ARCH_X86) && defined(CC_AVX2_SUPPORT) /* * since AVX frequency can be different to base frequency, limit * use of AVX2 version to later plaforms, not all those that could @@ -3063,7 +3063,7 @@ i40e_set_tx_function_flag(struct rte_eth_dev *dev, struct i40e_tx_queue *txq) static eth_tx_burst_t i40e_get_latest_tx_vec(void) { -#ifdef RTE_ARCH_X86 +#if defined(RTE_ARCH_X86) && defined(CC_AVX2_SUPPORT) if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2)) return i40e_xmit_pkts_vec_avx2; #endif @@ -3073,7 +3073,7 @@ i40e_get_latest_tx_vec(void) static eth_tx_burst_t i40e_get_recommend_tx_vec(void) { -#ifdef RTE_ARCH_X86 +#if defined(RTE_ARCH_X86) && defined(CC_AVX2_SUPPORT) /* * since AVX frequency can be different to base frequency, limit * use of AVX2 version to later plaforms, not all those that could @@ -3196,14 +3196,15 @@ i40e_set_default_pctype_table(struct rte_eth_dev *dev) } } +#ifndef RTE_LIBRTE_I40E_INC_VECTOR /* Stubs needed for linkage when CONFIG_RTE_LIBRTE_I40E_INC_VECTOR is set to 'n' */ -__rte_weak int +int i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev __rte_unused *dev) { return -1; } -__rte_weak uint16_t +uint16_t i40e_recv_pkts_vec( void __rte_unused *rx_queue, struct rte_mbuf __rte_unused **rx_pkts, @@ -3212,7 +3213,7 @@ i40e_recv_pkts_vec( return 0; } -__rte_weak uint16_t +uint16_t i40e_recv_scattered_pkts_vec( void __rte_unused *rx_queue, struct rte_mbuf __rte_unused **rx_pkts, @@ -3221,52 +3222,55 @@ i40e_recv_scattered_pkts_vec( return 0; } -__rte_weak uint16_t -i40e_recv_pkts_vec_avx2(void __rte_unused *rx_queue, - struct rte_mbuf __rte_unused **rx_pkts, - uint16_t __rte_unused nb_pkts) -{ - return 0; -} - -__rte_weak uint16_t -i40e_recv_scattered_pkts_vec_avx2(void __rte_unused *rx_queue, - struct rte_mbuf __rte_unused **rx_pkts, - uint16_t __rte_unused nb_pkts) -{ - return 0; -} - -__rte_weak int +int i40e_rxq_vec_setup(struct i40e_rx_queue __rte_unused *rxq) { return -1; } -__rte_weak int +int i40e_txq_vec_setup(struct i40e_tx_queue __rte_unused *txq) { return -1; } -__rte_weak void +void i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue __rte_unused*rxq) { return; } -__rte_weak uint16_t +uint16_t i40e_xmit_fixed_burst_vec(void __rte_unused * tx_queue, struct rte_mbuf __rte_unused **tx_pkts, uint16_t __rte_unused nb_pkts) { return 0; } +#endif /* ifndef RTE_LIBRTE_I40E_INC_VECTOR */ + +#ifndef CC_AVX2_SUPPORT +uint16_t +i40e_recv_pkts_vec_avx2(void __rte_unused *rx_queue, + struct rte_mbuf __rte_unused **rx_pkts, + uint16_t __rte_unused nb_pkts) +{ + return 0; +} -__rte_weak uint16_t +uint16_t +i40e_recv_scattered_pkts_vec_avx2(void __rte_unused *rx_queue, + struct rte_mbuf __rte_unused **rx_pkts, + uint16_t __rte_unused nb_pkts) +{ + return 0; +} + +uint16_t i40e_xmit_pkts_vec_avx2(void __rte_unused * tx_queue, struct rte_mbuf __rte_unused **tx_pkts, uint16_t __rte_unused nb_pkts) { return 0; } +#endif /* ifndef CC_AVX2_SUPPORT */ diff --git a/drivers/net/i40e/meson.build b/drivers/net/i40e/meson.build index d783f36265..dcbca39bf7 100644 --- a/drivers/net/i40e/meson.build +++ b/drivers/net/i40e/meson.build @@ -35,8 +35,10 @@ if arch_subdir == 'x86' # a. we have AVX supported in minimum instruction set baseline # b. it's not minimum instruction set, but supported by compiler if dpdk_conf.has('RTE_MACHINE_CPUFLAG_AVX2') + cflags += ['-DCC_AVX2_SUPPORT'] sources += files('i40e_rxtx_vec_avx2.c') elif cc.has_argument('-mavx2') + cflags += ['-DCC_AVX2_SUPPORT'] i40e_avx2_lib = static_library('i40e_avx2_lib', 'i40e_rxtx_vec_avx2.c', dependencies: [static_rte_ethdev,