9773ef18b8
Before that, we've refilled ring even on single descriptor move. Under high packet load that caused page allocation logic to be triggered too often. That made overall ring processing slower. Moreover, with page buffer reuse implemented, we should give a chance higher networking levels to process received packets faster, release the pages they consumed and therefore give a higher chance for these pages to be reused. RX ring is now refilled only when AQ_CFG_RX_REFILL_THRES or more descriptors were processed (32 by default). Under regular traffic this gives quite enough time for packet to be consumed and page to be reused. Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
99 lines
2.6 KiB
C
99 lines
2.6 KiB
C
/*
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* aQuantia Corporation Network Driver
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* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*/
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/* File aq_cfg.h: Definition of configuration parameters and constants. */
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#ifndef AQ_CFG_H
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#define AQ_CFG_H
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#define AQ_CFG_VECS_DEF 8U
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#define AQ_CFG_TCS_DEF 1U
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#define AQ_CFG_TXDS_DEF 4096U
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#define AQ_CFG_RXDS_DEF 1024U
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#define AQ_CFG_IS_POLLING_DEF 0U
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#define AQ_CFG_FORCE_LEGACY_INT 0U
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#define AQ_CFG_INTERRUPT_MODERATION_OFF 0
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#define AQ_CFG_INTERRUPT_MODERATION_ON 1
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#define AQ_CFG_INTERRUPT_MODERATION_AUTO 0xFFFFU
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#define AQ_CFG_INTERRUPT_MODERATION_USEC_MAX (0x1FF * 2)
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#define AQ_CFG_IRQ_MASK 0x1FFU
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#define AQ_CFG_VECS_MAX 8U
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#define AQ_CFG_TCS_MAX 8U
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#define AQ_CFG_TX_FRAME_MAX (16U * 1024U)
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#define AQ_CFG_RX_FRAME_MAX (4U * 1024U)
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#define AQ_CFG_TX_CLEAN_BUDGET 256U
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#define AQ_CFG_RX_REFILL_THRES 32U
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#define AQ_CFG_RX_HDR_SIZE 256U
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#define AQ_CFG_RX_PAGEORDER 0U
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/* LRO */
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#define AQ_CFG_IS_LRO_DEF 1U
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/* RSS */
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#define AQ_CFG_RSS_INDIRECTION_TABLE_MAX 64U
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#define AQ_CFG_RSS_HASHKEY_SIZE 40U
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#define AQ_CFG_IS_RSS_DEF 1U
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#define AQ_CFG_NUM_RSS_QUEUES_DEF AQ_CFG_VECS_DEF
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#define AQ_CFG_RSS_BASE_CPU_NUM_DEF 0U
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#define AQ_CFG_PCI_FUNC_MSIX_IRQS 9U
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#define AQ_CFG_PCI_FUNC_PORTS 2U
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#define AQ_CFG_SERVICE_TIMER_INTERVAL (1 * HZ)
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#define AQ_CFG_POLLING_TIMER_INTERVAL ((unsigned int)(2 * HZ))
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#define AQ_CFG_SKB_FRAGS_MAX 32U
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/* Number of descriptors available in one ring to resume this ring queue
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*/
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#define AQ_CFG_RESTART_DESC_THRES (AQ_CFG_SKB_FRAGS_MAX * 2)
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#define AQ_CFG_NAPI_WEIGHT 64U
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/*#define AQ_CFG_MAC_ADDR_PERMANENT {0x30, 0x0E, 0xE3, 0x12, 0x34, 0x56}*/
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#define AQ_NIC_FC_OFF 0U
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#define AQ_NIC_FC_TX 1U
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#define AQ_NIC_FC_RX 2U
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#define AQ_NIC_FC_FULL 3U
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#define AQ_NIC_FC_AUTO 4U
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#define AQ_CFG_FC_MODE AQ_NIC_FC_FULL
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#define AQ_CFG_SPEED_MSK 0xFFFFU /* 0xFFFFU==auto_neg */
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#define AQ_CFG_IS_AUTONEG_DEF 1U
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#define AQ_CFG_MTU_DEF 1514U
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#define AQ_CFG_LOCK_TRYS 100U
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#define AQ_CFG_DRV_AUTHOR "aQuantia"
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#define AQ_CFG_DRV_DESC "aQuantia Corporation(R) Network Driver"
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#define AQ_CFG_DRV_NAME "atlantic"
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#define AQ_CFG_DRV_VERSION __stringify(NIC_MAJOR_DRIVER_VERSION)"."\
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__stringify(NIC_MINOR_DRIVER_VERSION)"."\
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__stringify(NIC_BUILD_DRIVER_VERSION)"."\
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__stringify(NIC_REVISION_DRIVER_VERSION) \
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AQ_CFG_DRV_VERSION_SUFFIX
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#endif /* AQ_CFG_H */
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