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From: Arek Kusztal <arkadiuszx.kusztal@intel.com>
To: dev@dpdk.org
Cc: gakhil@marvell.com, fiona.trahe@intel.com,
	roy.fan.zhang@intel.com,
	Arek Kusztal <arkadiuszx.kusztal@intel.com>
Subject: [dpdk-dev] [PATCH v2 11/16] common/qat: add pf2vf communication in qat
Date: Mon, 28 Jun 2021 17:34:29 +0100	[thread overview]
Message-ID: <20210628163434.77741-12-arkadiuszx.kusztal@intel.com> (raw)
In-Reply-To: <20210628163434.77741-1-arkadiuszx.kusztal@intel.com>

Add communication between physical device and virtual function
in Intel QucikAssist Technology PMD.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
---
 drivers/common/qat/meson.build             |   1 +
 drivers/common/qat/qat_adf/adf_pf2vf_msg.h | 154 +++++++++++++++++++++
 drivers/common/qat/qat_device.c            |  22 ++-
 drivers/common/qat/qat_device.h            |  12 ++
 drivers/common/qat/qat_pf2vf.c             |  80 +++++++++++
 drivers/common/qat/qat_pf2vf.h             |  19 +++
 6 files changed, 287 insertions(+), 1 deletion(-)
 create mode 100644 drivers/common/qat/qat_adf/adf_pf2vf_msg.h
 create mode 100644 drivers/common/qat/qat_pf2vf.c
 create mode 100644 drivers/common/qat/qat_pf2vf.h

diff --git a/drivers/common/qat/meson.build b/drivers/common/qat/meson.build
index 479a46f9f0..11ed37c910 100644
--- a/drivers/common/qat/meson.build
+++ b/drivers/common/qat/meson.build
@@ -49,6 +49,7 @@ sources += files(
         'qat_qp.c',
         'qat_device.c',
         'qat_logs.c',
+        'qat_pf2vf.c'
 )
 includes += include_directories(
         'qat_adf',
diff --git a/drivers/common/qat/qat_adf/adf_pf2vf_msg.h b/drivers/common/qat/qat_adf/adf_pf2vf_msg.h
new file mode 100644
index 0000000000..4029b1c14a
--- /dev/null
+++ b/drivers/common/qat/qat_adf/adf_pf2vf_msg.h
@@ -0,0 +1,154 @@
+/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
+ * Copyright(c) 2021 Intel Corporation
+ */
+#ifndef ADF_PF2VF_MSG_H_
+#define ADF_PF2VF_MSG_H_
+
+/* VF/PF compatibility version. */
+/* ADF_PFVF_COMPATIBILITY_EXT_CAP: Support for extended capabilities */
+#define ADF_PFVF_COMPATIBILITY_CAPABILITIES	2
+/* ADF_PFVF_COMPATIBILITY_FAST_ACK: In-use pattern cleared by receiver */
+#define ADF_PFVF_COMPATIBILITY_FAST_ACK		3
+#define ADF_PFVF_COMPATIBILITY_RING_TO_SVC_MAP	4
+#define ADF_PFVF_COMPATIBILITY_VERSION		4	/* PF<->VF compat */
+
+#define ADF_PFVF_INT				    1
+#define ADF_PFVF_MSGORIGIN_SYSTEM		2
+#define ADF_PFVF_1X_MSGTYPE_SHIFT		2
+#define ADF_PFVF_1X_MSGTYPE_MASK		0xF
+#define ADF_PFVF_1X_MSGDATA_SHIFT		6
+#define ADF_PFVF_1X_MSGDATA_MASK		0x3FF
+#define ADF_PFVF_2X_MSGTYPE_SHIFT		2
+#define ADF_PFVF_2X_MSGTYPE_MASK		0x3F
+#define ADF_PFVF_2X_MSGDATA_SHIFT		8
+#define ADF_PFVF_2X_MSGDATA_MASK		0xFFFFFF
+
+#define ADF_PFVF_IN_USE				0x6AC2
+#define ADF_PFVF_IN_USE_MASK			0xFFFE
+#define ADF_PFVF_VF_MSG_SHIFT			16
+
+/* PF->VF messages */
+#define ADF_PF2VF_MSGTYPE_RESTARTING		0x01
+#define ADF_PF2VF_MSGTYPE_VERSION_RESP		0x02
+#define ADF_PF2VF_MSGTYPE_BLOCK_RESP		0x03
+#define ADF_PF2VF_MSGTYPE_FATAL_ERROR		0x04
+/* Do not use messages which start from 0x10 to 1.x as 1.x only use
+ * 4 bits as message types. Hence they are only applicable to 2.0
+ */
+#define ADF_PF2VF_MSGTYPE_RP_RESET_RESP		0x10
+
+/* PF->VF Version Response - ADF_PF2VF_MSGTYPE_VERSION_RESP */
+#define ADF_PF2VF_VERSION_RESP_VERS_MASK	0xFF
+#define ADF_PF2VF_VERSION_RESP_VERS_SHIFT	0
+#define ADF_PF2VF_VERSION_RESP_RESULT_MASK	0x03
+#define ADF_PF2VF_VERSION_RESP_RESULT_SHIFT	8
+#define ADF_PF2VF_MINORVERSION_SHIFT		0
+#define ADF_PF2VF_MAJORVERSION_SHIFT		4
+#define ADF_PF2VF_VF_COMPATIBLE			1
+#define ADF_PF2VF_VF_INCOMPATIBLE		2
+#define ADF_PF2VF_VF_COMPAT_UNKNOWN		3
+
+/* PF->VF Block Response Type - ADF_PF2VF_MSGTYPE_BLOCK_RESP */
+#define ADF_PF2VF_BLOCK_RESP_TYPE_DATA		0x0
+#define ADF_PF2VF_BLOCK_RESP_TYPE_CRC		0x1
+#define ADF_PF2VF_BLOCK_RESP_TYPE_ERROR		0x2
+#define ADF_PF2VF_BLOCK_RESP_TYPE_MASK		0x03
+#define ADF_PF2VF_BLOCK_RESP_TYPE_SHIFT		0
+#define ADF_PF2VF_BLOCK_RESP_DATA_MASK		0xFF
+#define ADF_PF2VF_BLOCK_RESP_DATA_SHIFT		2
+
+/*
+ * PF->VF Block Error Code - Returned in data field when the
+ * response type indicates an error
+ */
+#define ADF_PF2VF_INVALID_BLOCK_TYPE		0x0
+#define ADF_PF2VF_INVALID_BYTE_NUM_REQ		0x1
+#define ADF_PF2VF_PAYLOAD_TRUNCATED		0x2
+#define ADF_PF2VF_UNSPECIFIED_ERROR		0x3
+
+/* VF->PF messages */
+#define ADF_VF2PF_MSGTYPE_INIT			0x3
+#define ADF_VF2PF_MSGTYPE_SHUTDOWN		0x4
+#define ADF_VF2PF_MSGTYPE_VERSION_REQ		0x5
+#define ADF_VF2PF_MSGTYPE_COMPAT_VER_REQ	0x6
+#define ADF_VF2PF_MSGTYPE_GET_LARGE_BLOCK_REQ	0x7
+#define ADF_VF2PF_MSGTYPE_GET_MEDIUM_BLOCK_REQ	0x8
+#define ADF_VF2PF_MSGTYPE_GET_SMALL_BLOCK_REQ	0x9
+/* Do not use messages which start from 0x10 to 1.x as 1.x only use
+ * 4 bits as message types. Hence they are only applicable to 2.0
+ */
+#define ADF_VF2PF_MSGTYPE_RP_RESET		0x10
+
+/* VF->PF Block Request Type - ADF_VF2PF_MSGTYPE_GET_xxx_BLOCK_REQ  */
+#define ADF_VF2PF_MIN_SMALL_MESSAGE_TYPE	0
+#define ADF_VF2PF_MAX_SMALL_MESSAGE_TYPE \
+		(ADF_VF2PF_MIN_SMALL_MESSAGE_TYPE + 15)
+#define ADF_VF2PF_MIN_MEDIUM_MESSAGE_TYPE \
+		(ADF_VF2PF_MAX_SMALL_MESSAGE_TYPE + 1)
+#define ADF_VF2PF_MAX_MEDIUM_MESSAGE_TYPE \
+		(ADF_VF2PF_MIN_MEDIUM_MESSAGE_TYPE + 7)
+#define ADF_VF2PF_MIN_LARGE_MESSAGE_TYPE \
+		(ADF_VF2PF_MAX_MEDIUM_MESSAGE_TYPE + 1)
+#define ADF_VF2PF_MAX_LARGE_MESSAGE_TYPE \
+		(ADF_VF2PF_MIN_LARGE_MESSAGE_TYPE + 3)
+#define ADF_VF2PF_SMALL_PAYLOAD_SIZE		30
+#define ADF_VF2PF_MEDIUM_PAYLOAD_SIZE		62
+#define ADF_VF2PF_LARGE_PAYLOAD_SIZE		126
+
+#define ADF_VF2PF_BLOCK_REQ_TYPE_SHIFT		0
+#define ADF_VF2PF_LARGE_BLOCK_REQ_TYPE_MASK	0x3
+#define ADF_VF2PF_MEDIUM_BLOCK_REQ_TYPE_MASK	0x7
+#define ADF_VF2PF_SMALL_BLOCK_REQ_TYPE_MASK	0xF
+
+#define ADF_VF2PF_LARGE_BLOCK_BYTE_NUM_SHIFT	2
+#define ADF_VF2PF_LARGE_BLOCK_BYTE_NUM_MASK	0x7F
+#define ADF_VF2PF_MEDIUM_BLOCK_BYTE_NUM_SHIFT	3
+#define ADF_VF2PF_MEDIUM_BLOCK_BYTE_NUM_MASK	0x3F
+#define ADF_VF2PF_SMALL_BLOCK_BYTE_NUM_SHIFT	4
+#define ADF_VF2PF_SMALL_BLOCK_BYTE_NUM_MASK	0x1F
+#define ADF_VF2PF_BLOCK_REQ_CRC_SHIFT		9
+
+/* PF-VF block message header bytes */
+#define ADF_VF2PF_BLOCK_VERSION_BYTE		0
+#define ADF_VF2PF_BLOCK_LEN_BYTE                1
+#define ADF_VF2PF_BLOCK_DATA	                2
+
+/* Block message types
+ *  0..15 - 32 byte message
+ * 16..23 - 64 byte message
+ * 24..27 - 128 byte message
+ * 2 - Get Capability Request message
+ */
+#define ADF_VF2PF_BLOCK_MSG_CAP_SUMMARY         0x2
+#define ADF_VF2PF_BLOCK_MSG_GET_RING_TO_SVC_REQ 0x3
+
+/* VF->PF Compatible Version Request - ADF_VF2PF_MSGTYPE_VERSION_REQ */
+#define ADF_VF2PF_COMPAT_VER_SHIFT		0
+#define ADF_VF2PF_COMPAT_VER_MASK		0xFF
+
+/* How long to wait for far side to acknowledge receipt */
+#define ADF_IOV_MSG_ACK_DELAY_US		5
+#define ADF_IOV_MSG_ACK_MAX_RETRY	(100 * 1000 / ADF_IOV_MSG_ACK_DELAY_US)
+/* If CSR is busy, how long to delay before retrying */
+#define ADF_IOV_MSG_RETRY_DELAY			5
+#define ADF_IOV_MSG_MAX_RETRIES			3
+/* How long to wait for a response from the other side */
+#define ADF_IOV_MSG_RESP_TIMEOUT		100
+/* How often to retry when there is no response */
+#define ADF_IOV_MSG_RESP_RETRIES		5
+
+#define ADF_IOV_RATELIMIT_INTERVAL		8
+#define ADF_IOV_RATELIMIT_BURST			130
+/* PF VF message byte shift */
+#define ADF_PFVF_DATA_SHIFT                     8
+#define ADF_PFVF_DATA_MASK                      0xFF
+
+/* CRC Calculation */
+#define ADF_CRC8_INIT_VALUE 0xFF
+
+/* Per device register offsets */
+/* GEN 4 */
+#define ADF_4XXXIOV_PF2VM_OFFSET	0x1008
+#define ADF_4XXXIOV_VM2PF_OFFSET	0x100C
+
+#endif /* ADF_IOV_MSG_H */
diff --git a/drivers/common/qat/qat_device.c b/drivers/common/qat/qat_device.c
index 932d7110f7..5ee441171e 100644
--- a/drivers/common/qat/qat_device.c
+++ b/drivers/common/qat/qat_device.c
@@ -10,6 +10,17 @@
 #include "adf_transport_access_macros.h"
 #include "qat_sym_pmd.h"
 #include "qat_comp_pmd.h"
+#include "adf_pf2vf_msg.h"
+
+/* pv2vf data Gen 4*/
+struct qat_pf2vf_dev qat_pf2vf_gen4 = {
+	.pf2vf_offset = ADF_4XXXIOV_PF2VM_OFFSET,
+	.vf2pf_offset = ADF_4XXXIOV_VM2PF_OFFSET,
+	.pf2vf_type_shift = ADF_PFVF_2X_MSGTYPE_SHIFT,
+	.pf2vf_type_mask = ADF_PFVF_2X_MSGTYPE_MASK,
+	.pf2vf_data_shift = ADF_PFVF_2X_MSGDATA_SHIFT,
+	.pf2vf_data_mask = ADF_PFVF_2X_MSGDATA_MASK,
+};
 
 /* Hardware device information per generation */
 __extension__
@@ -33,7 +44,8 @@ struct qat_gen_hw_data qat_gen_config[] =  {
 	[QAT_GEN4] = {
 		.dev_gen = QAT_GEN4,
 		.qp_hw_data = NULL,
-		.comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN3
+		.comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN3,
+		.pf2vf_dev = &qat_pf2vf_gen4
 	},
 };
 
@@ -249,6 +261,14 @@ qat_pci_device_allocate(struct rte_pci_device *pci_dev,
 		return NULL;
 	}
 
+	if (qat_dev->qat_dev_gen == QAT_GEN4) {
+		qat_dev->misc_bar_io_addr = pci_dev->mem_resource[2].addr;
+		if (qat_dev->misc_bar_io_addr == NULL) {
+			QAT_LOG(ERR, "QAT cannot get access to VF misc bar");
+			return NULL;
+		}
+	}
+
 	if (devargs && devargs->drv_str)
 		qat_dev_parse_cmd(devargs->drv_str, qat_dev_cmd_param);
 
diff --git a/drivers/common/qat/qat_device.h b/drivers/common/qat/qat_device.h
index f4fecc9517..05e164baa7 100644
--- a/drivers/common/qat/qat_device.h
+++ b/drivers/common/qat/qat_device.h
@@ -108,12 +108,24 @@ struct qat_pci_device {
 	struct qat_qp_hw_data qp_gen4_data[QAT_GEN4_BUNDLE_NUM]
 		[QAT_GEN4_QPS_PER_BUNDLE_NUM];
 	/**< Data of ring configuration on gen4 */
+	void *misc_bar_io_addr;
+	/**< Address of misc bar */
 };
 
 struct qat_gen_hw_data {
 	enum qat_device_gen dev_gen;
 	const struct qat_qp_hw_data (*qp_hw_data)[ADF_MAX_QPS_ON_ANY_SERVICE];
 	enum qat_comp_num_im_buffers comp_num_im_bufs_required;
+	struct qat_pf2vf_dev *pf2vf_dev;
+};
+
+struct qat_pf2vf_dev {
+	uint32_t pf2vf_offset;
+	uint32_t vf2pf_offset;
+	int pf2vf_type_shift;
+	uint32_t pf2vf_type_mask;
+	int pf2vf_data_shift;
+	uint32_t pf2vf_data_mask;
 };
 
 extern struct qat_gen_hw_data qat_gen_config[];
diff --git a/drivers/common/qat/qat_pf2vf.c b/drivers/common/qat/qat_pf2vf.c
new file mode 100644
index 0000000000..6327311199
--- /dev/null
+++ b/drivers/common/qat/qat_pf2vf.c
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include "qat_pf2vf.h"
+#include "adf_pf2vf_msg.h"
+
+#include <rte_cycles.h>
+
+int qat_pf2vf_exch_msg(struct qat_pci_device *qat_dev,
+		struct qat_pf2vf_msg pf2vf_msg,
+		int len, uint8_t *ret)
+{
+	int i = 0;
+	struct qat_pf2vf_dev *qat_pf2vf =
+	qat_gen_config[qat_dev->qat_dev_gen].pf2vf_dev;
+	void *pmisc_bar_addr = qat_dev->misc_bar_io_addr;
+	uint32_t msg = 0, count = 0, val = 0;
+	uint32_t vf_csr_off = qat_pf2vf->vf2pf_offset;
+	uint32_t pf_csr_off = qat_pf2vf->pf2vf_offset;
+	int type_shift = qat_pf2vf->pf2vf_type_shift;
+	uint32_t type_mask = qat_pf2vf->pf2vf_type_mask;
+	int blck_hdr_shift = qat_pf2vf->pf2vf_data_shift;
+	int data_shift = blck_hdr_shift;
+
+	switch (pf2vf_msg.msg_type) {
+	case ADF_VF2PF_MSGTYPE_GET_SMALL_BLOCK_REQ:
+		data_shift += ADF_VF2PF_SMALL_BLOCK_BYTE_NUM_SHIFT;
+		break;
+	case ADF_VF2PF_MSGTYPE_GET_MEDIUM_BLOCK_REQ:
+		data_shift += ADF_VF2PF_MEDIUM_BLOCK_BYTE_NUM_SHIFT;
+		break;
+	case ADF_VF2PF_MSGTYPE_GET_LARGE_BLOCK_REQ:
+		data_shift += ADF_VF2PF_LARGE_BLOCK_BYTE_NUM_SHIFT;
+		break;
+	}
+
+	if ((pf2vf_msg.msg_type & type_mask) != pf2vf_msg.msg_type) {
+		QAT_LOG(ERR, "PF2VF message type 0x%X out of range\n",
+			pf2vf_msg.msg_type);
+		return -EINVAL;
+	}
+
+	for (; i < len; i++) {
+		count = 0;
+		if (len == 1) {
+			msg = (pf2vf_msg.msg_type << type_shift) |
+				(pf2vf_msg.msg_data << (data_shift));
+		} else
+			msg = (pf2vf_msg.msg_type << type_shift) |
+				((pf2vf_msg.msg_data + i) << (data_shift));
+		if (pf2vf_msg.block_hdr > 0)
+			msg |= pf2vf_msg.block_hdr << blck_hdr_shift;
+		msg |= ADF_PFVF_INT | ADF_PFVF_MSGORIGIN_SYSTEM;
+
+		ADF_CSR_WR(pmisc_bar_addr, vf_csr_off, msg);
+		int us = 0;
+		/*
+		 * Wait for confirmation from remote that it received
+		 * the message
+		 */
+		do {
+			rte_delay_us_sleep(5);
+			us += 5;
+			val = ADF_CSR_RD(pmisc_bar_addr, vf_csr_off);
+		} while ((val & ADF_PFVF_INT) &&
+			(++count < ADF_IOV_MSG_ACK_MAX_RETRY));
+
+		if (val & ADF_PFVF_INT) {
+			QAT_LOG(ERR, "ACK not received from remote\n");
+			return -EIO;
+		}
+
+		uint32_t pf_val = ADF_CSR_RD(pmisc_bar_addr, pf_csr_off);
+
+		*(ret + i) = (uint8_t)(pf_val >> (pf2vf_msg.block_hdr > 0 ?
+				10 : 8) & 0xff);
+	}
+	return 0;
+}
diff --git a/drivers/common/qat/qat_pf2vf.h b/drivers/common/qat/qat_pf2vf.h
new file mode 100644
index 0000000000..df59277347
--- /dev/null
+++ b/drivers/common/qat/qat_pf2vf.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include "qat_device.h"
+
+#ifndef QAT_PF2VF_H_
+#define QAT_PF2VF_H_
+
+struct qat_pf2vf_msg {
+	uint32_t msg_data;
+	int block_hdr;
+	uint16_t msg_type;
+};
+
+int qat_pf2vf_exch_msg(struct qat_pci_device *qat_dev,
+	struct qat_pf2vf_msg pf2vf_msg,	int len, uint8_t *ret);
+
+#endif
-- 
2.30.2


  parent reply	other threads:[~2021-06-28 16:35 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-28 16:34 [dpdk-dev] [PATCH v2 00/16] Add support for fourth generation of Intel QuickAssist Technology devices Arek Kusztal
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 01/16] common/qat: rework qp per service function Arek Kusztal
2021-06-29 12:15   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 02/16] crypto/qat: add support for generation 4 devices Arek Kusztal
2021-06-29 12:15   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 03/16] crypto/qat: enable gen4 legacy algorithms Arek Kusztal
2021-06-29 12:18   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 04/16] crypto/qat: add gen4 ucs slice type, add ctr mode Arek Kusztal
2021-06-29 12:16   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 05/16] crypto/qat: rename content descriptor functions Arek Kusztal
2021-06-29 12:18   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 06/16] crypto/qat: add legacy gcm and ccm Arek Kusztal
2021-06-29 12:22   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 07/16] crypto/qat: rework init common header function Arek Kusztal
2021-06-29 12:23   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 08/16] crypto/qat: add aes gcm in ucs spc mode Arek Kusztal
2021-06-29 12:19   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 09/16] crypto/qat: add chacha-poly " Arek Kusztal
2021-06-29 12:20   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 10/16] crypto/qat: add gmac in legacy mode on gen 4 Arek Kusztal
2021-06-29 12:20   ` Zhang, Roy Fan
2021-06-28 16:34 ` Arek Kusztal [this message]
2021-06-29 12:22   ` [dpdk-dev] [PATCH v2 11/16] common/qat: add pf2vf communication in qat Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 12/16] common/qat: reset ring pairs before setting gen4 Arek Kusztal
2021-06-29 12:21   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 13/16] common/qat: add service discovery to qat gen4 Arek Kusztal
2021-06-29 12:21   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 14/16] crypto/qat: update raw dp api Arek Kusztal
2021-06-29 13:06   ` Dybkowski, AdamX
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 15/16] crypto/qat: enable RAW API on QAT GEN1-3 only Arek Kusztal
2021-06-29 12:23   ` Zhang, Roy Fan
2021-06-28 16:34 ` [dpdk-dev] [PATCH v2 16/16] test/crypto: check if RAW API is supported Arek Kusztal
2021-06-29 12:24   ` Zhang, Roy Fan
2021-07-16 18:06   ` [dpdk-dev] [EXT] " Akhil Goyal
2021-07-19 12:39     ` Dybkowski, AdamX
2021-06-29 12:14 ` [dpdk-dev] [PATCH v2 00/16] Add support for fourth generation of Intel QuickAssist Technology devices Zhang, Roy Fan
2021-07-16 18:09 ` [dpdk-dev] [EXT] " Akhil Goyal

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