mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8fce333170
This follows David Miller advice and tries to fix coalesce timer in
multi-queue scenarios.
We are now using per-queue coalesce values and per-queue TX timer.
Coalesce timer default values was changed to 1ms and the coalesce frames
to 25.
Tested in B2B setup between XGMAC2 and GMAC5.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: ce736788e8 ("net: stmmac: adding multiple buffers for TX")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
232 lines
5.3 KiB
C
232 lines
5.3 KiB
C
/*******************************************************************************
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Copyright (C) 2007-2009 STMicroelectronics Ltd
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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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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
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*******************************************************************************/
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#ifndef __STMMAC_H__
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#define __STMMAC_H__
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#define STMMAC_RESOURCE_NAME "stmmaceth"
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#define DRV_MODULE_VERSION "Jan_2016"
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#include <linux/clk.h>
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#include <linux/stmmac.h>
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#include <linux/phy.h>
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#include <linux/pci.h>
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#include "common.h"
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#include <linux/ptp_clock_kernel.h>
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#include <linux/reset.h>
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struct stmmac_resources {
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void __iomem *addr;
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const char *mac;
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int wol_irq;
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int lpi_irq;
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int irq;
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};
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struct stmmac_tx_info {
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dma_addr_t buf;
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bool map_as_page;
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unsigned len;
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bool last_segment;
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bool is_jumbo;
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};
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/* Frequently used values are kept adjacent for cache effect */
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struct stmmac_tx_queue {
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u32 tx_count_frames;
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struct timer_list txtimer;
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u32 queue_index;
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struct stmmac_priv *priv_data;
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struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp;
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struct dma_desc *dma_tx;
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struct sk_buff **tx_skbuff;
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struct stmmac_tx_info *tx_skbuff_dma;
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unsigned int cur_tx;
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unsigned int dirty_tx;
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dma_addr_t dma_tx_phy;
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u32 tx_tail_addr;
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u32 mss;
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};
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struct stmmac_rx_queue {
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u32 queue_index;
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struct stmmac_priv *priv_data;
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struct dma_extended_desc *dma_erx;
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struct dma_desc *dma_rx ____cacheline_aligned_in_smp;
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struct sk_buff **rx_skbuff;
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dma_addr_t *rx_skbuff_dma;
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unsigned int cur_rx;
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unsigned int dirty_rx;
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u32 rx_zeroc_thresh;
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dma_addr_t dma_rx_phy;
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u32 rx_tail_addr;
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};
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struct stmmac_channel {
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struct napi_struct napi ____cacheline_aligned_in_smp;
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struct stmmac_priv *priv_data;
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u32 index;
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int has_rx;
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int has_tx;
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};
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struct stmmac_tc_entry {
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bool in_use;
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bool in_hw;
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bool is_last;
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bool is_frag;
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void *frag_ptr;
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unsigned int table_pos;
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u32 handle;
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u32 prio;
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struct {
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u32 match_data;
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u32 match_en;
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u8 af:1;
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u8 rf:1;
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u8 im:1;
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u8 nc:1;
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u8 res1:4;
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u8 frame_offset;
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u8 ok_index;
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u8 dma_ch_no;
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u32 res2;
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} __packed val;
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};
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#define STMMAC_PPS_MAX 4
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struct stmmac_pps_cfg {
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bool available;
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struct timespec64 start;
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struct timespec64 period;
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};
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struct stmmac_priv {
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/* Frequently used values are kept adjacent for cache effect */
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u32 tx_coal_frames;
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u32 tx_coal_timer;
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int tx_coalesce;
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int hwts_tx_en;
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bool tx_path_in_lpi_mode;
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bool tso;
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unsigned int dma_buf_sz;
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unsigned int rx_copybreak;
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u32 rx_riwt;
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int hwts_rx_en;
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void __iomem *ioaddr;
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struct net_device *dev;
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struct device *device;
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struct mac_device_info *hw;
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int (*hwif_quirks)(struct stmmac_priv *priv);
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struct mutex lock;
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/* RX Queue */
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struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES];
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/* TX Queue */
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struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES];
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/* Generic channel for NAPI */
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struct stmmac_channel channel[STMMAC_CH_MAX];
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bool oldlink;
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int speed;
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int oldduplex;
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unsigned int flow_ctrl;
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unsigned int pause;
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struct mii_bus *mii;
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int mii_irq[PHY_MAX_ADDR];
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struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp;
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struct stmmac_safety_stats sstats;
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struct plat_stmmacenet_data *plat;
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struct dma_features dma_cap;
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struct stmmac_counters mmc;
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int hw_cap_support;
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int synopsys_id;
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u32 msg_enable;
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int wolopts;
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int wol_irq;
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int clk_csr;
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struct timer_list eee_ctrl_timer;
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int lpi_irq;
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int eee_enabled;
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int eee_active;
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int tx_lpi_timer;
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unsigned int mode;
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unsigned int chain_mode;
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int extend_desc;
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struct ptp_clock *ptp_clock;
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struct ptp_clock_info ptp_clock_ops;
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unsigned int default_addend;
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u32 sub_second_inc;
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u32 systime_flags;
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u32 adv_ts;
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int use_riwt;
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int irq_wake;
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spinlock_t ptp_lock;
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void __iomem *mmcaddr;
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void __iomem *ptpaddr;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *dbgfs_dir;
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struct dentry *dbgfs_rings_status;
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struct dentry *dbgfs_dma_cap;
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#endif
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unsigned long state;
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struct workqueue_struct *wq;
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struct work_struct service_task;
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/* TC Handling */
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unsigned int tc_entries_max;
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unsigned int tc_off_max;
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struct stmmac_tc_entry *tc_entries;
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/* Pulse Per Second output */
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struct stmmac_pps_cfg pps[STMMAC_PPS_MAX];
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};
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enum stmmac_state {
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STMMAC_DOWN,
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STMMAC_RESET_REQUESTED,
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STMMAC_RESETING,
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STMMAC_SERVICE_SCHED,
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};
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int stmmac_mdio_unregister(struct net_device *ndev);
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int stmmac_mdio_register(struct net_device *ndev);
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int stmmac_mdio_reset(struct mii_bus *mii);
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void stmmac_set_ethtool_ops(struct net_device *netdev);
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void stmmac_ptp_register(struct stmmac_priv *priv);
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void stmmac_ptp_unregister(struct stmmac_priv *priv);
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int stmmac_resume(struct device *dev);
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int stmmac_suspend(struct device *dev);
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int stmmac_dvr_remove(struct device *dev);
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int stmmac_dvr_probe(struct device *device,
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struct plat_stmmacenet_data *plat_dat,
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struct stmmac_resources *res);
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void stmmac_disable_eee_mode(struct stmmac_priv *priv);
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bool stmmac_eee_init(struct stmmac_priv *priv);
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#endif /* __STMMAC_H__ */
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