47c3f7a41a
This patch adds minimum enqueue threshold to Intel QuickAssist Technology PMD. It is an optimisation, configured by a command line option, which can be used to reduce MMIO write occurrences. Signed-off-by: Fiona Trahe <fiona.trahe@intel.com> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Intel Corporation
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*/
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#ifndef _QAT_COMMON_H_
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#define _QAT_COMMON_H_
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#include <stdint.h>
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#include <rte_mbuf.h>
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/**< Intel(R) QAT device name for PCI registration */
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#define QAT_PCI_NAME qat
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#define QAT_64_BTYE_ALIGN_MASK (~0x3f)
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/* Intel(R) QuickAssist Technology device generation is enumerated
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* from one according to the generation of the device
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*/
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enum qat_device_gen {
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QAT_GEN1 = 1,
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QAT_GEN2,
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QAT_GEN3
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};
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enum qat_service_type {
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QAT_SERVICE_ASYMMETRIC = 0,
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QAT_SERVICE_SYMMETRIC,
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QAT_SERVICE_COMPRESSION,
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QAT_SERVICE_INVALID
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};
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#define QAT_MAX_SERVICES (QAT_SERVICE_INVALID)
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/**< Common struct for scatter-gather list operations */
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struct qat_flat_buf {
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uint32_t len;
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uint32_t resrvd;
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uint64_t addr;
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} __rte_packed;
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#define qat_sgl_hdr struct { \
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uint64_t resrvd; \
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uint32_t num_bufs; \
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uint32_t num_mapped_bufs; \
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}
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__extension__
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struct qat_sgl {
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qat_sgl_hdr;
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/* flexible array of flat buffers*/
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struct qat_flat_buf buffers[0];
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} __rte_packed __rte_cache_aligned;
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/** Common, i.e. not service-specific, statistics */
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struct qat_common_stats {
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uint64_t enqueued_count;
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/**< Count of all operations enqueued */
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uint64_t dequeued_count;
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/**< Count of all operations dequeued */
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uint64_t enqueue_err_count;
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/**< Total error count on operations enqueued */
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uint64_t dequeue_err_count;
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/**< Total error count on operations dequeued */
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uint64_t threshold_hit_count;
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/**< Total number of times min qp threshold condition was fulfilled */
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};
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struct qat_pci_device;
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int
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qat_sgl_fill_array(struct rte_mbuf *buf, int64_t offset,
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void *list_in, uint32_t data_len,
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const uint16_t max_segs);
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void
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qat_stats_get(struct qat_pci_device *dev,
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struct qat_common_stats *stats,
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enum qat_service_type service);
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void
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qat_stats_reset(struct qat_pci_device *dev,
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enum qat_service_type service);
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#endif /* _QAT_COMMON_H_ */
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