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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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dd87b22f90
The BF518 has a PTP time unit that works in a similar way to other MAC based clocks, like gianfar, ixp46x, and igb. This patch adds support for using the blackfin as a PHC. Although the blackfin hardware does offer a few ancillary features, this patch implements only the basic operations. Compile tested only. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Bob Liu <lliubbo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
/*
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* Blackfin On-Chip MAC Driver
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*
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* Copyright 2004-2007 Analog Devices Inc.
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*
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* Enter bugs at http://blackfin.uclinux.org/
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef _BFIN_MAC_H_
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#define _BFIN_MAC_H_
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#include <linux/net_tstamp.h>
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#include <linux/ptp_clock_kernel.h>
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#include <linux/timer.h>
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#include <linux/etherdevice.h>
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#include <linux/bfin_mac.h>
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/*
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* Disable hardware checksum for bug #5600 if writeback cache is
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* enabled. Otherwize, corrupted RX packet will be sent up stack
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* without error mark.
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*/
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#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
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#define BFIN_MAC_CSUM_OFFLOAD
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#endif
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#define TX_RECLAIM_JIFFIES (HZ / 5)
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struct dma_descriptor {
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struct dma_descriptor *next_dma_desc;
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unsigned long start_addr;
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unsigned short config;
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unsigned short x_count;
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};
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struct status_area_rx {
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#if defined(BFIN_MAC_CSUM_OFFLOAD)
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unsigned short ip_hdr_csum; /* ip header checksum */
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/* ip payload(udp or tcp or others) checksum */
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unsigned short ip_payload_csum;
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#endif
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unsigned long status_word; /* the frame status word */
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};
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struct status_area_tx {
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unsigned long status_word; /* the frame status word */
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};
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/* use two descriptors for a packet */
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struct net_dma_desc_rx {
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struct net_dma_desc_rx *next;
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struct sk_buff *skb;
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struct dma_descriptor desc_a;
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struct dma_descriptor desc_b;
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struct status_area_rx status;
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};
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/* use two descriptors for a packet */
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struct net_dma_desc_tx {
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struct net_dma_desc_tx *next;
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struct sk_buff *skb;
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struct dma_descriptor desc_a;
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struct dma_descriptor desc_b;
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unsigned char packet[1560];
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struct status_area_tx status;
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};
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struct bfin_mac_local {
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/*
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* these are things that the kernel wants me to keep, so users
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* can find out semi-useless statistics of how well the card is
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* performing
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*/
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struct net_device_stats stats;
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spinlock_t lock;
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int wol; /* Wake On Lan */
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int irq_wake_requested;
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struct timer_list tx_reclaim_timer;
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struct net_device *ndev;
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/* Data for EMAC_VLAN1 regs */
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u16 vlan1_mask, vlan2_mask;
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/* MII and PHY stuffs */
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int old_link; /* used by bf537_adjust_link */
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int old_speed;
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int old_duplex;
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struct phy_device *phydev;
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struct mii_bus *mii_bus;
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#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
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u32 addend;
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unsigned int shift;
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s32 max_ppb;
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struct hwtstamp_config stamp_cfg;
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struct ptp_clock_info caps;
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struct ptp_clock *clock;
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int phc_index;
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spinlock_t phc_lock; /* protects time lo/hi registers */
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#endif
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};
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extern int bfin_get_ether_addr(char *addr);
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#endif
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