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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6a8788f256
This implements the changes needed for the bnxt_en driver to add support for dynamic interrupt moderation per ring. This does add additional counters in the receive path, but testing shows that any additional instructions are offset by throughput gain when the default configuration is for low latency. Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Acked-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
33 lines
946 B
C
33 lines
946 B
C
/* Broadcom NetXtreme-C/E network driver.
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*
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* Copyright (c) 2017-2018 Broadcom Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*/
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#include <linux/net_dim.h>
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#include "bnxt_hsi.h"
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#include "bnxt.h"
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void bnxt_dim_work(struct work_struct *work)
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{
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struct net_dim *dim = container_of(work, struct net_dim,
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work);
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struct bnxt_cp_ring_info *cpr = container_of(dim,
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struct bnxt_cp_ring_info,
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dim);
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struct bnxt_napi *bnapi = container_of(cpr,
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struct bnxt_napi,
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cp_ring);
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struct net_dim_cq_moder cur_profile = net_dim_get_profile(dim->mode,
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dim->profile_ix);
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cpr->rx_ring_coal.coal_ticks = cur_profile.usec;
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cpr->rx_ring_coal.coal_bufs = cur_profile.pkts;
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bnxt_hwrm_set_ring_coal(bnapi->bp, bnapi);
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dim->state = NET_DIM_START_MEASURE;
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}
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