[dpdk-dev] [PATCH 2/2] net/ice: fix generic build on FreeBSD

[Leyi Rong <leyi.rong@intel.com>]

The common header file for vectorization is included in multiple files,
and so must use macros for the current compilation unit, rather than the
compiler-capability flag set for the whole driver. With the current,
incorrect, macro, the AVX512 or AVX2 flags may be set when compiling up
SSE code, leading to compilation errors. Changing from "CC_AVX*_SUPPORT"
to the compiler-defined "__AVX*__" macros fixes this issue. In addition,
splitting AVX-specific code into the new ice_rxtx_common_avx.h header
file to avoid such bugs.

Bugzilla ID: 788
Fixes: a4e480de268e ("net/ice: optimize Tx by using AVX512")
Fixes: 20daa1c978b7 ("net/ice: fix crash in AVX512")
Cc: wenzhuo.lu@intel.com
Cc: leyi.rong@intel.com
Cc: stable@dpdk.org

Signed-off-by: Leyi Rong <leyi.rong@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/net/ice/ice_rxtx_common_avx.h | 213 ++++++++++++++++++++++++++
 drivers/net/ice/ice_rxtx_vec_common.h | 205 +------------------------
 2 files changed, 218 insertions(+), 200 deletions(-)
 create mode 100644 drivers/net/ice/ice_rxtx_common_avx.h

diff --git a/drivers/net/ice/ice_rxtx_common_avx.h b/drivers/net/ice/ice_rxtx_common_avx.h
new file mode 100644
index 0000000000..81e0db5dd3
--- /dev/null
+++ b/drivers/net/ice/ice_rxtx_common_avx.h
@@ -0,0 +1,213 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#ifndef _ICE_RXTX_COMMON_AVX_H_
+#define _ICE_RXTX_COMMON_AVX_H_
+
+#include "ice_rxtx.h"
+
+#ifndef __INTEL_COMPILER
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+
+#ifdef __AVX2__
+static __rte_always_inline void
+ice_rxq_rearm_common(struct ice_rx_queue *rxq, __rte_unused bool avx512)
+{
+	int i;
+	uint16_t rx_id;
+	volatile union ice_rx_flex_desc *rxdp;
+	struct ice_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
+
+	rxdp = rxq->rx_ring + rxq->rxrearm_start;
+
+	/* Pull 'n' more MBUFs into the software ring */
+	if (rte_mempool_get_bulk(rxq->mp,
+				 (void *)rxep,
+				 ICE_RXQ_REARM_THRESH) < 0) {
+		if (rxq->rxrearm_nb + ICE_RXQ_REARM_THRESH >=
+		    rxq->nb_rx_desc) {
+			__m128i dma_addr0;
+
+			dma_addr0 = _mm_setzero_si128();
+			for (i = 0; i < ICE_DESCS_PER_LOOP; i++) {
+				rxep[i].mbuf = &rxq->fake_mbuf;
+				_mm_store_si128((__m128i *)&rxdp[i].read,
+						dma_addr0);
+			}
+		}
+		rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
+			ICE_RXQ_REARM_THRESH;
+		return;
+	}
+
+#ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
+	struct rte_mbuf *mb0, *mb1;
+	__m128i dma_addr0, dma_addr1;
+	__m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM,
+			RTE_PKTMBUF_HEADROOM);
+	/* Initialize the mbufs in vector, process 2 mbufs in one loop */
+	for (i = 0; i < ICE_RXQ_REARM_THRESH; i += 2, rxep += 2) {
+		__m128i vaddr0, vaddr1;
+
+		mb0 = rxep[0].mbuf;
+		mb1 = rxep[1].mbuf;
+
+		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
+				offsetof(struct rte_mbuf, buf_addr) + 8);
+		vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
+		vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
+
+		/* convert pa to dma_addr hdr/data */
+		dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0);
+		dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1);
+
+		/* add headroom to pa values */
+		dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room);
+		dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room);
+
+		/* flush desc with pa dma_addr */
+		_mm_store_si128((__m128i *)&rxdp++->read, dma_addr0);
+		_mm_store_si128((__m128i *)&rxdp++->read, dma_addr1);
+	}
+#else
+#ifdef __AVX512VL__
+	if (avx512) {
+		struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
+		struct rte_mbuf *mb4, *mb5, *mb6, *mb7;
+		__m512i dma_addr0_3, dma_addr4_7;
+		__m512i hdr_room = _mm512_set1_epi64(RTE_PKTMBUF_HEADROOM);
+		/* Initialize the mbufs in vector, process 8 mbufs in one loop */
+		for (i = 0; i < ICE_RXQ_REARM_THRESH;
+				i += 8, rxep += 8, rxdp += 8) {
+			__m128i vaddr0, vaddr1, vaddr2, vaddr3;
+			__m128i vaddr4, vaddr5, vaddr6, vaddr7;
+			__m256i vaddr0_1, vaddr2_3;
+			__m256i vaddr4_5, vaddr6_7;
+			__m512i vaddr0_3, vaddr4_7;
+
+			mb0 = rxep[0].mbuf;
+			mb1 = rxep[1].mbuf;
+			mb2 = rxep[2].mbuf;
+			mb3 = rxep[3].mbuf;
+			mb4 = rxep[4].mbuf;
+			mb5 = rxep[5].mbuf;
+			mb6 = rxep[6].mbuf;
+			mb7 = rxep[7].mbuf;
+
+			/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+			RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
+					offsetof(struct rte_mbuf, buf_addr) + 8);
+			vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
+			vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
+			vaddr2 = _mm_loadu_si128((__m128i *)&mb2->buf_addr);
+			vaddr3 = _mm_loadu_si128((__m128i *)&mb3->buf_addr);
+			vaddr4 = _mm_loadu_si128((__m128i *)&mb4->buf_addr);
+			vaddr5 = _mm_loadu_si128((__m128i *)&mb5->buf_addr);
+			vaddr6 = _mm_loadu_si128((__m128i *)&mb6->buf_addr);
+			vaddr7 = _mm_loadu_si128((__m128i *)&mb7->buf_addr);
+
+			/**
+			 * merge 0 & 1, by casting 0 to 256-bit and inserting 1
+			 * into the high lanes. Similarly for 2 & 3, and so on.
+			 */
+			vaddr0_1 =
+				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr0),
+							vaddr1, 1);
+			vaddr2_3 =
+				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr2),
+							vaddr3, 1);
+			vaddr4_5 =
+				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr4),
+							vaddr5, 1);
+			vaddr6_7 =
+				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr6),
+							vaddr7, 1);
+			vaddr0_3 =
+				_mm512_inserti64x4(_mm512_castsi256_si512(vaddr0_1),
+						   vaddr2_3, 1);
+			vaddr4_7 =
+				_mm512_inserti64x4(_mm512_castsi256_si512(vaddr4_5),
+						   vaddr6_7, 1);
+
+			/* convert pa to dma_addr hdr/data */
+			dma_addr0_3 = _mm512_unpackhi_epi64(vaddr0_3, vaddr0_3);
+			dma_addr4_7 = _mm512_unpackhi_epi64(vaddr4_7, vaddr4_7);
+
+			/* add headroom to pa values */
+			dma_addr0_3 = _mm512_add_epi64(dma_addr0_3, hdr_room);
+			dma_addr4_7 = _mm512_add_epi64(dma_addr4_7, hdr_room);
+
+			/* flush desc with pa dma_addr */
+			_mm512_store_si512((__m512i *)&rxdp->read, dma_addr0_3);
+			_mm512_store_si512((__m512i *)&(rxdp + 4)->read, dma_addr4_7);
+		}
+	} else
+#endif /* __AVX512VL__ */
+	{
+		struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
+		__m256i dma_addr0_1, dma_addr2_3;
+		__m256i hdr_room = _mm256_set1_epi64x(RTE_PKTMBUF_HEADROOM);
+		/* Initialize the mbufs in vector, process 4 mbufs in one loop */
+		for (i = 0; i < ICE_RXQ_REARM_THRESH;
+				i += 4, rxep += 4, rxdp += 4) {
+			__m128i vaddr0, vaddr1, vaddr2, vaddr3;
+			__m256i vaddr0_1, vaddr2_3;
+
+			mb0 = rxep[0].mbuf;
+			mb1 = rxep[1].mbuf;
+			mb2 = rxep[2].mbuf;
+			mb3 = rxep[3].mbuf;
+
+			/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+			RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
+					offsetof(struct rte_mbuf, buf_addr) + 8);
+			vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
+			vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
+			vaddr2 = _mm_loadu_si128((__m128i *)&mb2->buf_addr);
+			vaddr3 = _mm_loadu_si128((__m128i *)&mb3->buf_addr);
+
+			/**
+			 * merge 0 & 1, by casting 0 to 256-bit and inserting 1
+			 * into the high lanes. Similarly for 2 & 3
+			 */
+			vaddr0_1 =
+				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr0),
+							vaddr1, 1);
+			vaddr2_3 =
+				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr2),
+							vaddr3, 1);
+
+			/* convert pa to dma_addr hdr/data */
+			dma_addr0_1 = _mm256_unpackhi_epi64(vaddr0_1, vaddr0_1);
+			dma_addr2_3 = _mm256_unpackhi_epi64(vaddr2_3, vaddr2_3);
+
+			/* add headroom to pa values */
+			dma_addr0_1 = _mm256_add_epi64(dma_addr0_1, hdr_room);
+			dma_addr2_3 = _mm256_add_epi64(dma_addr2_3, hdr_room);
+
+			/* flush desc with pa dma_addr */
+			_mm256_store_si256((__m256i *)&rxdp->read, dma_addr0_1);
+			_mm256_store_si256((__m256i *)&(rxdp + 2)->read, dma_addr2_3);
+		}
+	}
+
+#endif
+
+	rxq->rxrearm_start += ICE_RXQ_REARM_THRESH;
+	if (rxq->rxrearm_start >= rxq->nb_rx_desc)
+		rxq->rxrearm_start = 0;
+
+	rxq->rxrearm_nb -= ICE_RXQ_REARM_THRESH;
+
+	rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
+			     (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
+
+	/* Update the tail pointer on the NIC */
+	ICE_PCI_REG_WC_WRITE(rxq->qrx_tail, rx_id);
+}
+#endif /* __AVX2__ */
+
+#endif /* _ICE_RXTX_COMMON_AVX_H_ */
diff --git a/drivers/net/ice/ice_rxtx_vec_common.h b/drivers/net/ice/ice_rxtx_vec_common.h
index 5b5250565e..94ba87cbd9 100644
--- a/drivers/net/ice/ice_rxtx_vec_common.h
+++ b/drivers/net/ice/ice_rxtx_vec_common.h
@@ -11,6 +11,10 @@
 #pragma GCC diagnostic ignored "-Wcast-qual"
 #endif
 
+#ifdef __AVX2__
+#include "ice_rxtx_common_avx.h"
+#endif
+
 static inline uint16_t
 ice_rx_reassemble_packets(struct ice_rx_queue *rxq, struct rte_mbuf **rx_bufs,
 			  uint16_t nb_bufs, uint8_t *split_flags)
@@ -194,7 +198,7 @@ _ice_tx_queue_release_mbufs_vec(struct ice_tx_queue *txq)
 	 */
 	i = txq->tx_next_dd - txq->tx_rs_thresh + 1;
 
-#ifdef CC_AVX512_SUPPORT
+#ifdef __AVX512VL__
 	struct rte_eth_dev *dev = &rte_eth_devices[txq->vsi->adapter->pf.dev_data->port_id];
 
 	if (dev->tx_pkt_burst == ice_xmit_pkts_vec_avx512 ||
@@ -355,205 +359,6 @@ ice_tx_vec_dev_check_default(struct rte_eth_dev *dev)
 	return result;
 }
 
-#ifdef CC_AVX2_SUPPORT
-static __rte_always_inline void
-ice_rxq_rearm_common(struct ice_rx_queue *rxq, __rte_unused bool avx512)
-{
-	int i;
-	uint16_t rx_id;
-	volatile union ice_rx_flex_desc *rxdp;
-	struct ice_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
-
-	rxdp = rxq->rx_ring + rxq->rxrearm_start;
-
-	/* Pull 'n' more MBUFs into the software ring */
-	if (rte_mempool_get_bulk(rxq->mp,
-				 (void *)rxep,
-				 ICE_RXQ_REARM_THRESH) < 0) {
-		if (rxq->rxrearm_nb + ICE_RXQ_REARM_THRESH >=
-		    rxq->nb_rx_desc) {
-			__m128i dma_addr0;
-
-			dma_addr0 = _mm_setzero_si128();
-			for (i = 0; i < ICE_DESCS_PER_LOOP; i++) {
-				rxep[i].mbuf = &rxq->fake_mbuf;
-				_mm_store_si128((__m128i *)&rxdp[i].read,
-						dma_addr0);
-			}
-		}
-		rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
-			ICE_RXQ_REARM_THRESH;
-		return;
-	}
-
-#ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
-	struct rte_mbuf *mb0, *mb1;
-	__m128i dma_addr0, dma_addr1;
-	__m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM,
-			RTE_PKTMBUF_HEADROOM);
-	/* Initialize the mbufs in vector, process 2 mbufs in one loop */
-	for (i = 0; i < ICE_RXQ_REARM_THRESH; i += 2, rxep += 2) {
-		__m128i vaddr0, vaddr1;
-
-		mb0 = rxep[0].mbuf;
-		mb1 = rxep[1].mbuf;
-
-		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
-		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
-				offsetof(struct rte_mbuf, buf_addr) + 8);
-		vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
-		vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
-
-		/* convert pa to dma_addr hdr/data */
-		dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0);
-		dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1);
-
-		/* add headroom to pa values */
-		dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room);
-		dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room);
-
-		/* flush desc with pa dma_addr */
-		_mm_store_si128((__m128i *)&rxdp++->read, dma_addr0);
-		_mm_store_si128((__m128i *)&rxdp++->read, dma_addr1);
-	}
-#else
-#ifdef CC_AVX512_SUPPORT
-	if (avx512) {
-		struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
-		struct rte_mbuf *mb4, *mb5, *mb6, *mb7;
-		__m512i dma_addr0_3, dma_addr4_7;
-		__m512i hdr_room = _mm512_set1_epi64(RTE_PKTMBUF_HEADROOM);
-		/* Initialize the mbufs in vector, process 8 mbufs in one loop */
-		for (i = 0; i < ICE_RXQ_REARM_THRESH;
-				i += 8, rxep += 8, rxdp += 8) {
-			__m128i vaddr0, vaddr1, vaddr2, vaddr3;
-			__m128i vaddr4, vaddr5, vaddr6, vaddr7;
-			__m256i vaddr0_1, vaddr2_3;
-			__m256i vaddr4_5, vaddr6_7;
-			__m512i vaddr0_3, vaddr4_7;
-
-			mb0 = rxep[0].mbuf;
-			mb1 = rxep[1].mbuf;
-			mb2 = rxep[2].mbuf;
-			mb3 = rxep[3].mbuf;
-			mb4 = rxep[4].mbuf;
-			mb5 = rxep[5].mbuf;
-			mb6 = rxep[6].mbuf;
-			mb7 = rxep[7].mbuf;
-
-			/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
-			RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
-					offsetof(struct rte_mbuf, buf_addr) + 8);
-			vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
-			vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
-			vaddr2 = _mm_loadu_si128((__m128i *)&mb2->buf_addr);
-			vaddr3 = _mm_loadu_si128((__m128i *)&mb3->buf_addr);
-			vaddr4 = _mm_loadu_si128((__m128i *)&mb4->buf_addr);
-			vaddr5 = _mm_loadu_si128((__m128i *)&mb5->buf_addr);
-			vaddr6 = _mm_loadu_si128((__m128i *)&mb6->buf_addr);
-			vaddr7 = _mm_loadu_si128((__m128i *)&mb7->buf_addr);
-
-			/**
-			 * merge 0 & 1, by casting 0 to 256-bit and inserting 1
-			 * into the high lanes. Similarly for 2 & 3, and so on.
-			 */
-			vaddr0_1 =
-				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr0),
-							vaddr1, 1);
-			vaddr2_3 =
-				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr2),
-							vaddr3, 1);
-			vaddr4_5 =
-				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr4),
-							vaddr5, 1);
-			vaddr6_7 =
-				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr6),
-							vaddr7, 1);
-			vaddr0_3 =
-				_mm512_inserti64x4(_mm512_castsi256_si512(vaddr0_1),
-							vaddr2_3, 1);
-			vaddr4_7 =
-				_mm512_inserti64x4(_mm512_castsi256_si512(vaddr4_5),
-							vaddr6_7, 1);
-
-			/* convert pa to dma_addr hdr/data */
-			dma_addr0_3 = _mm512_unpackhi_epi64(vaddr0_3, vaddr0_3);
-			dma_addr4_7 = _mm512_unpackhi_epi64(vaddr4_7, vaddr4_7);
-
-			/* add headroom to pa values */
-			dma_addr0_3 = _mm512_add_epi64(dma_addr0_3, hdr_room);
-			dma_addr4_7 = _mm512_add_epi64(dma_addr4_7, hdr_room);
-
-			/* flush desc with pa dma_addr */
-			_mm512_store_si512((__m512i *)&rxdp->read, dma_addr0_3);
-			_mm512_store_si512((__m512i *)&(rxdp + 4)->read, dma_addr4_7);
-		}
-	} else
-#endif
-	{
-		struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
-		__m256i dma_addr0_1, dma_addr2_3;
-		__m256i hdr_room = _mm256_set1_epi64x(RTE_PKTMBUF_HEADROOM);
-		/* Initialize the mbufs in vector, process 4 mbufs in one loop */
-		for (i = 0; i < ICE_RXQ_REARM_THRESH;
-				i += 4, rxep += 4, rxdp += 4) {
-			__m128i vaddr0, vaddr1, vaddr2, vaddr3;
-			__m256i vaddr0_1, vaddr2_3;
-
-			mb0 = rxep[0].mbuf;
-			mb1 = rxep[1].mbuf;
-			mb2 = rxep[2].mbuf;
-			mb3 = rxep[3].mbuf;
-
-			/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
-			RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
-					offsetof(struct rte_mbuf, buf_addr) + 8);
-			vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
-			vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
-			vaddr2 = _mm_loadu_si128((__m128i *)&mb2->buf_addr);
-			vaddr3 = _mm_loadu_si128((__m128i *)&mb3->buf_addr);
-
-			/**
-			 * merge 0 & 1, by casting 0 to 256-bit and inserting 1
-			 * into the high lanes. Similarly for 2 & 3
-			 */
-			vaddr0_1 =
-				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr0),
-							vaddr1, 1);
-			vaddr2_3 =
-				_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr2),
-							vaddr3, 1);
-
-			/* convert pa to dma_addr hdr/data */
-			dma_addr0_1 = _mm256_unpackhi_epi64(vaddr0_1, vaddr0_1);
-			dma_addr2_3 = _mm256_unpackhi_epi64(vaddr2_3, vaddr2_3);
-
-			/* add headroom to pa values */
-			dma_addr0_1 = _mm256_add_epi64(dma_addr0_1, hdr_room);
-			dma_addr2_3 = _mm256_add_epi64(dma_addr2_3, hdr_room);
-
-			/* flush desc with pa dma_addr */
-			_mm256_store_si256((__m256i *)&rxdp->read, dma_addr0_1);
-			_mm256_store_si256((__m256i *)&(rxdp + 2)->read, dma_addr2_3);
-		}
-	}
-
-#endif
-
-	rxq->rxrearm_start += ICE_RXQ_REARM_THRESH;
-	if (rxq->rxrearm_start >= rxq->nb_rx_desc)
-		rxq->rxrearm_start = 0;
-
-	rxq->rxrearm_nb -= ICE_RXQ_REARM_THRESH;
-
-	rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
-			     (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
-
-	/* Update the tail pointer on the NIC */
-	ICE_PCI_REG_WC_WRITE(rxq->qrx_tail, rx_id);
-}
-#endif
-
 static inline void
 ice_txd_enable_offload(struct rte_mbuf *tx_pkt,
 		       uint64_t *txd_hi)
-- 
2.17.1