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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/net/ethernet/alteon/acenic.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/net/ethernet/alteon/acenic.h')
-rw-r--r--kernel/drivers/net/ethernet/alteon/acenic.h790
1 files changed, 790 insertions, 0 deletions
diff --git a/kernel/drivers/net/ethernet/alteon/acenic.h b/kernel/drivers/net/ethernet/alteon/acenic.h
new file mode 100644
index 000000000..51c486cfb
--- /dev/null
+++ b/kernel/drivers/net/ethernet/alteon/acenic.h
@@ -0,0 +1,790 @@
+#ifndef _ACENIC_H_
+#define _ACENIC_H_
+#include <linux/interrupt.h>
+
+
+/*
+ * Generate TX index update each time, when TX ring is closed.
+ * Normally, this is not useful, because results in more dma (and irqs
+ * without TX_COAL_INTS_ONLY).
+ */
+#define USE_TX_COAL_NOW 0
+
+/*
+ * Addressing:
+ *
+ * The Tigon uses 64-bit host addresses, regardless of their actual
+ * length, and it expects a big-endian format. For 32 bit systems the
+ * upper 32 bits of the address are simply ignored (zero), however for
+ * little endian 64 bit systems (Alpha) this looks strange with the
+ * two parts of the address word being swapped.
+ *
+ * The addresses are split in two 32 bit words for all architectures
+ * as some of them are in PCI shared memory and it is necessary to use
+ * readl/writel to access them.
+ *
+ * The addressing code is derived from Pete Wyckoff's work, but
+ * modified to deal properly with readl/writel usage.
+ */
+
+struct ace_regs {
+ u32 pad0[16]; /* PCI control registers */
+
+ u32 HostCtrl; /* 0x40 */
+ u32 LocalCtrl;
+
+ u32 pad1[2];
+
+ u32 MiscCfg; /* 0x50 */
+
+ u32 pad2[2];
+
+ u32 PciState;
+
+ u32 pad3[2]; /* 0x60 */
+
+ u32 WinBase;
+ u32 WinData;
+
+ u32 pad4[12]; /* 0x70 */
+
+ u32 DmaWriteState; /* 0xa0 */
+ u32 pad5[3];
+ u32 DmaReadState; /* 0xb0 */
+
+ u32 pad6[26];
+
+ u32 AssistState;
+
+ u32 pad7[8]; /* 0x120 */
+
+ u32 CpuCtrl; /* 0x140 */
+ u32 Pc;
+
+ u32 pad8[3];
+
+ u32 SramAddr; /* 0x154 */
+ u32 SramData;
+
+ u32 pad9[49];
+
+ u32 MacRxState; /* 0x220 */
+
+ u32 pad10[7];
+
+ u32 CpuBCtrl; /* 0x240 */
+ u32 PcB;
+
+ u32 pad11[3];
+
+ u32 SramBAddr; /* 0x254 */
+ u32 SramBData;
+
+ u32 pad12[105];
+
+ u32 pad13[32]; /* 0x400 */
+ u32 Stats[32];
+
+ u32 Mb0Hi; /* 0x500 */
+ u32 Mb0Lo;
+ u32 Mb1Hi;
+ u32 CmdPrd;
+ u32 Mb2Hi;
+ u32 TxPrd;
+ u32 Mb3Hi;
+ u32 RxStdPrd;
+ u32 Mb4Hi;
+ u32 RxJumboPrd;
+ u32 Mb5Hi;
+ u32 RxMiniPrd;
+ u32 Mb6Hi;
+ u32 Mb6Lo;
+ u32 Mb7Hi;
+ u32 Mb7Lo;
+ u32 Mb8Hi;
+ u32 Mb8Lo;
+ u32 Mb9Hi;
+ u32 Mb9Lo;
+ u32 MbAHi;
+ u32 MbALo;
+ u32 MbBHi;
+ u32 MbBLo;
+ u32 MbCHi;
+ u32 MbCLo;
+ u32 MbDHi;
+ u32 MbDLo;
+ u32 MbEHi;
+ u32 MbELo;
+ u32 MbFHi;
+ u32 MbFLo;
+
+ u32 pad14[32];
+
+ u32 MacAddrHi; /* 0x600 */
+ u32 MacAddrLo;
+ u32 InfoPtrHi;
+ u32 InfoPtrLo;
+ u32 MultiCastHi; /* 0x610 */
+ u32 MultiCastLo;
+ u32 ModeStat;
+ u32 DmaReadCfg;
+ u32 DmaWriteCfg; /* 0x620 */
+ u32 TxBufRat;
+ u32 EvtCsm;
+ u32 CmdCsm;
+ u32 TuneRxCoalTicks;/* 0x630 */
+ u32 TuneTxCoalTicks;
+ u32 TuneStatTicks;
+ u32 TuneMaxTxDesc;
+ u32 TuneMaxRxDesc; /* 0x640 */
+ u32 TuneTrace;
+ u32 TuneLink;
+ u32 TuneFastLink;
+ u32 TracePtr; /* 0x650 */
+ u32 TraceStrt;
+ u32 TraceLen;
+ u32 IfIdx;
+ u32 IfMtu; /* 0x660 */
+ u32 MaskInt;
+ u32 GigLnkState;
+ u32 FastLnkState;
+ u32 pad16[4]; /* 0x670 */
+ u32 RxRetCsm; /* 0x680 */
+
+ u32 pad17[31];
+
+ u32 CmdRng[64]; /* 0x700 */
+ u32 Window[0x200];
+};
+
+
+typedef struct {
+ u32 addrhi;
+ u32 addrlo;
+} aceaddr;
+
+
+#define ACE_WINDOW_SIZE 0x800
+
+#define ACE_JUMBO_MTU 9000
+#define ACE_STD_MTU 1500
+
+#define ACE_TRACE_SIZE 0x8000
+
+/*
+ * Host control register bits.
+ */
+
+#define IN_INT 0x01
+#define CLR_INT 0x02
+#define HW_RESET 0x08
+#define BYTE_SWAP 0x10
+#define WORD_SWAP 0x20
+#define MASK_INTS 0x40
+
+/*
+ * Local control register bits.
+ */
+
+#define EEPROM_DATA_IN 0x800000
+#define EEPROM_DATA_OUT 0x400000
+#define EEPROM_WRITE_ENABLE 0x200000
+#define EEPROM_CLK_OUT 0x100000
+
+#define EEPROM_BASE 0xa0000000
+
+#define EEPROM_WRITE_SELECT 0xa0
+#define EEPROM_READ_SELECT 0xa1
+
+#define SRAM_BANK_512K 0x200
+
+
+/*
+ * udelay() values for when clocking the eeprom
+ */
+#define ACE_SHORT_DELAY 2
+#define ACE_LONG_DELAY 4
+
+
+/*
+ * Misc Config bits
+ */
+
+#define SYNC_SRAM_TIMING 0x100000
+
+
+/*
+ * CPU state bits.
+ */
+
+#define CPU_RESET 0x01
+#define CPU_TRACE 0x02
+#define CPU_PROM_FAILED 0x10
+#define CPU_HALT 0x00010000
+#define CPU_HALTED 0xffff0000
+
+
+/*
+ * PCI State bits.
+ */
+
+#define DMA_READ_MAX_4 0x04
+#define DMA_READ_MAX_16 0x08
+#define DMA_READ_MAX_32 0x0c
+#define DMA_READ_MAX_64 0x10
+#define DMA_READ_MAX_128 0x14
+#define DMA_READ_MAX_256 0x18
+#define DMA_READ_MAX_1K 0x1c
+#define DMA_WRITE_MAX_4 0x20
+#define DMA_WRITE_MAX_16 0x40
+#define DMA_WRITE_MAX_32 0x60
+#define DMA_WRITE_MAX_64 0x80
+#define DMA_WRITE_MAX_128 0xa0
+#define DMA_WRITE_MAX_256 0xc0
+#define DMA_WRITE_MAX_1K 0xe0
+#define DMA_READ_WRITE_MASK 0xfc
+#define MEM_READ_MULTIPLE 0x00020000
+#define PCI_66MHZ 0x00080000
+#define PCI_32BIT 0x00100000
+#define DMA_WRITE_ALL_ALIGN 0x00800000
+#define READ_CMD_MEM 0x06000000
+#define WRITE_CMD_MEM 0x70000000
+
+
+/*
+ * Mode status
+ */
+
+#define ACE_BYTE_SWAP_BD 0x02
+#define ACE_WORD_SWAP_BD 0x04 /* not actually used */
+#define ACE_WARN 0x08
+#define ACE_BYTE_SWAP_DMA 0x10
+#define ACE_NO_JUMBO_FRAG 0x200
+#define ACE_FATAL 0x40000000
+
+
+/*
+ * DMA config
+ */
+
+#define DMA_THRESH_1W 0x10
+#define DMA_THRESH_2W 0x20
+#define DMA_THRESH_4W 0x40
+#define DMA_THRESH_8W 0x80
+#define DMA_THRESH_16W 0x100
+#define DMA_THRESH_32W 0x0 /* not described in doc, but exists. */
+
+
+/*
+ * Tuning parameters
+ */
+
+#define TICKS_PER_SEC 1000000
+
+
+/*
+ * Link bits
+ */
+
+#define LNK_PREF 0x00008000
+#define LNK_10MB 0x00010000
+#define LNK_100MB 0x00020000
+#define LNK_1000MB 0x00040000
+#define LNK_FULL_DUPLEX 0x00080000
+#define LNK_HALF_DUPLEX 0x00100000
+#define LNK_TX_FLOW_CTL_Y 0x00200000
+#define LNK_NEG_ADVANCED 0x00400000
+#define LNK_RX_FLOW_CTL_Y 0x00800000
+#define LNK_NIC 0x01000000
+#define LNK_JAM 0x02000000
+#define LNK_JUMBO 0x04000000
+#define LNK_ALTEON 0x08000000
+#define LNK_NEG_FCTL 0x10000000
+#define LNK_NEGOTIATE 0x20000000
+#define LNK_ENABLE 0x40000000
+#define LNK_UP 0x80000000
+
+
+/*
+ * Event definitions
+ */
+
+#define EVT_RING_ENTRIES 256
+#define EVT_RING_SIZE (EVT_RING_ENTRIES * sizeof(struct event))
+
+struct event {
+#ifdef __LITTLE_ENDIAN_BITFIELD
+ u32 idx:12;
+ u32 code:12;
+ u32 evt:8;
+#else
+ u32 evt:8;
+ u32 code:12;
+ u32 idx:12;
+#endif
+ u32 pad;
+};
+
+
+/*
+ * Events
+ */
+
+#define E_FW_RUNNING 0x01
+#define E_STATS_UPDATED 0x04
+
+#define E_STATS_UPDATE 0x04
+
+#define E_LNK_STATE 0x06
+#define E_C_LINK_UP 0x01
+#define E_C_LINK_DOWN 0x02
+#define E_C_LINK_10_100 0x03
+
+#define E_ERROR 0x07
+#define E_C_ERR_INVAL_CMD 0x01
+#define E_C_ERR_UNIMP_CMD 0x02
+#define E_C_ERR_BAD_CFG 0x03
+
+#define E_MCAST_LIST 0x08
+#define E_C_MCAST_ADDR_ADD 0x01
+#define E_C_MCAST_ADDR_DEL 0x02
+
+#define E_RESET_JUMBO_RNG 0x09
+
+
+/*
+ * Commands
+ */
+
+#define CMD_RING_ENTRIES 64
+
+struct cmd {
+#ifdef __LITTLE_ENDIAN_BITFIELD
+ u32 idx:12;
+ u32 code:12;
+ u32 evt:8;
+#else
+ u32 evt:8;
+ u32 code:12;
+ u32 idx:12;
+#endif
+};
+
+
+#define C_HOST_STATE 0x01
+#define C_C_STACK_UP 0x01
+#define C_C_STACK_DOWN 0x02
+
+#define C_FDR_FILTERING 0x02
+#define C_C_FDR_FILT_ENABLE 0x01
+#define C_C_FDR_FILT_DISABLE 0x02
+
+#define C_SET_RX_PRD_IDX 0x03
+#define C_UPDATE_STATS 0x04
+#define C_RESET_JUMBO_RNG 0x05
+#define C_ADD_MULTICAST_ADDR 0x08
+#define C_DEL_MULTICAST_ADDR 0x09
+
+#define C_SET_PROMISC_MODE 0x0a
+#define C_C_PROMISC_ENABLE 0x01
+#define C_C_PROMISC_DISABLE 0x02
+
+#define C_LNK_NEGOTIATION 0x0b
+#define C_C_NEGOTIATE_BOTH 0x00
+#define C_C_NEGOTIATE_GIG 0x01
+#define C_C_NEGOTIATE_10_100 0x02
+
+#define C_SET_MAC_ADDR 0x0c
+#define C_CLEAR_PROFILE 0x0d
+
+#define C_SET_MULTICAST_MODE 0x0e
+#define C_C_MCAST_ENABLE 0x01
+#define C_C_MCAST_DISABLE 0x02
+
+#define C_CLEAR_STATS 0x0f
+#define C_SET_RX_JUMBO_PRD_IDX 0x10
+#define C_REFRESH_STATS 0x11
+
+
+/*
+ * Descriptor flags
+ */
+#define BD_FLG_TCP_UDP_SUM 0x01
+#define BD_FLG_IP_SUM 0x02
+#define BD_FLG_END 0x04
+#define BD_FLG_MORE 0x08
+#define BD_FLG_JUMBO 0x10
+#define BD_FLG_UCAST 0x20
+#define BD_FLG_MCAST 0x40
+#define BD_FLG_BCAST 0x60
+#define BD_FLG_TYP_MASK 0x60
+#define BD_FLG_IP_FRAG 0x80
+#define BD_FLG_IP_FRAG_END 0x100
+#define BD_FLG_VLAN_TAG 0x200
+#define BD_FLG_FRAME_ERROR 0x400
+#define BD_FLG_COAL_NOW 0x800
+#define BD_FLG_MINI 0x1000
+
+
+/*
+ * Ring Control block flags
+ */
+#define RCB_FLG_TCP_UDP_SUM 0x01
+#define RCB_FLG_IP_SUM 0x02
+#define RCB_FLG_NO_PSEUDO_HDR 0x08
+#define RCB_FLG_VLAN_ASSIST 0x10
+#define RCB_FLG_COAL_INT_ONLY 0x20
+#define RCB_FLG_TX_HOST_RING 0x40
+#define RCB_FLG_IEEE_SNAP_SUM 0x80
+#define RCB_FLG_EXT_RX_BD 0x100
+#define RCB_FLG_RNG_DISABLE 0x200
+
+
+/*
+ * TX ring - maximum TX ring entries for Tigon I's is 128
+ */
+#define MAX_TX_RING_ENTRIES 256
+#define TIGON_I_TX_RING_ENTRIES 128
+#define TX_RING_SIZE (MAX_TX_RING_ENTRIES * sizeof(struct tx_desc))
+#define TX_RING_BASE 0x3800
+
+struct tx_desc{
+ aceaddr addr;
+ u32 flagsize;
+#if 0
+/*
+ * This is in PCI shared mem and must be accessed with readl/writel
+ * real layout is:
+ */
+#if __LITTLE_ENDIAN
+ u16 flags;
+ u16 size;
+ u16 vlan;
+ u16 reserved;
+#else
+ u16 size;
+ u16 flags;
+ u16 reserved;
+ u16 vlan;
+#endif
+#endif
+ u32 vlanres;
+};
+
+
+#define RX_STD_RING_ENTRIES 512
+#define RX_STD_RING_SIZE (RX_STD_RING_ENTRIES * sizeof(struct rx_desc))
+
+#define RX_JUMBO_RING_ENTRIES 256
+#define RX_JUMBO_RING_SIZE (RX_JUMBO_RING_ENTRIES *sizeof(struct rx_desc))
+
+#define RX_MINI_RING_ENTRIES 1024
+#define RX_MINI_RING_SIZE (RX_MINI_RING_ENTRIES *sizeof(struct rx_desc))
+
+#define RX_RETURN_RING_ENTRIES 2048
+#define RX_RETURN_RING_SIZE (RX_MAX_RETURN_RING_ENTRIES * \
+ sizeof(struct rx_desc))
+
+struct rx_desc{
+ aceaddr addr;
+#ifdef __LITTLE_ENDIAN
+ u16 size;
+ u16 idx;
+#else
+ u16 idx;
+ u16 size;
+#endif
+#ifdef __LITTLE_ENDIAN
+ u16 flags;
+ u16 type;
+#else
+ u16 type;
+ u16 flags;
+#endif
+#ifdef __LITTLE_ENDIAN
+ u16 tcp_udp_csum;
+ u16 ip_csum;
+#else
+ u16 ip_csum;
+ u16 tcp_udp_csum;
+#endif
+#ifdef __LITTLE_ENDIAN
+ u16 vlan;
+ u16 err_flags;
+#else
+ u16 err_flags;
+ u16 vlan;
+#endif
+ u32 reserved;
+ u32 opague;
+};
+
+
+/*
+ * This struct is shared with the NIC firmware.
+ */
+struct ring_ctrl {
+ aceaddr rngptr;
+#ifdef __LITTLE_ENDIAN
+ u16 flags;
+ u16 max_len;
+#else
+ u16 max_len;
+ u16 flags;
+#endif
+ u32 pad;
+};
+
+
+struct ace_mac_stats {
+ u32 excess_colls;
+ u32 coll_1;
+ u32 coll_2;
+ u32 coll_3;
+ u32 coll_4;
+ u32 coll_5;
+ u32 coll_6;
+ u32 coll_7;
+ u32 coll_8;
+ u32 coll_9;
+ u32 coll_10;
+ u32 coll_11;
+ u32 coll_12;
+ u32 coll_13;
+ u32 coll_14;
+ u32 coll_15;
+ u32 late_coll;
+ u32 defers;
+ u32 crc_err;
+ u32 underrun;
+ u32 crs_err;
+ u32 pad[3];
+ u32 drop_ula;
+ u32 drop_mc;
+ u32 drop_fc;
+ u32 drop_space;
+ u32 coll;
+ u32 kept_bc;
+ u32 kept_mc;
+ u32 kept_uc;
+};
+
+
+struct ace_info {
+ union {
+ u32 stats[256];
+ } s;
+ struct ring_ctrl evt_ctrl;
+ struct ring_ctrl cmd_ctrl;
+ struct ring_ctrl tx_ctrl;
+ struct ring_ctrl rx_std_ctrl;
+ struct ring_ctrl rx_jumbo_ctrl;
+ struct ring_ctrl rx_mini_ctrl;
+ struct ring_ctrl rx_return_ctrl;
+ aceaddr evt_prd_ptr;
+ aceaddr rx_ret_prd_ptr;
+ aceaddr tx_csm_ptr;
+ aceaddr stats2_ptr;
+};
+
+
+struct ring_info {
+ struct sk_buff *skb;
+ DEFINE_DMA_UNMAP_ADDR(mapping);
+};
+
+
+/*
+ * Funny... As soon as we add maplen on alpha, it starts to work
+ * much slower. Hmm... is it because struct does not fit to one cacheline?
+ * So, split tx_ring_info.
+ */
+struct tx_ring_info {
+ struct sk_buff *skb;
+ DEFINE_DMA_UNMAP_ADDR(mapping);
+ DEFINE_DMA_UNMAP_LEN(maplen);
+};
+
+
+/*
+ * struct ace_skb holding the rings of skb's. This is an awful lot of
+ * pointers, but I don't see any other smart mode to do this in an
+ * efficient manner ;-(
+ */
+struct ace_skb
+{
+ struct tx_ring_info tx_skbuff[MAX_TX_RING_ENTRIES];
+ struct ring_info rx_std_skbuff[RX_STD_RING_ENTRIES];
+ struct ring_info rx_mini_skbuff[RX_MINI_RING_ENTRIES];
+ struct ring_info rx_jumbo_skbuff[RX_JUMBO_RING_ENTRIES];
+};
+
+
+/*
+ * Struct private for the AceNIC.
+ *
+ * Elements are grouped so variables used by the tx handling goes
+ * together, and will go into the same cache lines etc. in order to
+ * avoid cache line contention between the rx and tx handling on SMP.
+ *
+ * Frequently accessed variables are put at the beginning of the
+ * struct to help the compiler generate better/shorter code.
+ */
+struct ace_private
+{
+ struct ace_info *info;
+ struct ace_regs __iomem *regs; /* register base */
+ struct ace_skb *skb;
+ dma_addr_t info_dma; /* 32/64 bit */
+
+ int version, link;
+ int promisc, mcast_all;
+
+ /*
+ * TX elements
+ */
+ struct tx_desc *tx_ring;
+ u32 tx_prd;
+ volatile u32 tx_ret_csm;
+ int tx_ring_entries;
+
+ /*
+ * RX elements
+ */
+ unsigned long std_refill_busy
+ __attribute__ ((aligned (SMP_CACHE_BYTES)));
+ unsigned long mini_refill_busy, jumbo_refill_busy;
+ atomic_t cur_rx_bufs;
+ atomic_t cur_mini_bufs;
+ atomic_t cur_jumbo_bufs;
+ u32 rx_std_skbprd, rx_mini_skbprd, rx_jumbo_skbprd;
+ u32 cur_rx;
+
+ struct rx_desc *rx_std_ring;
+ struct rx_desc *rx_jumbo_ring;
+ struct rx_desc *rx_mini_ring;
+ struct rx_desc *rx_return_ring;
+
+ int tasklet_pending, jumbo;
+ struct tasklet_struct ace_tasklet;
+
+ struct event *evt_ring;
+
+ volatile u32 *evt_prd, *rx_ret_prd, *tx_csm;
+
+ dma_addr_t tx_ring_dma; /* 32/64 bit */
+ dma_addr_t rx_ring_base_dma;
+ dma_addr_t evt_ring_dma;
+ dma_addr_t evt_prd_dma, rx_ret_prd_dma, tx_csm_dma;
+
+ unsigned char *trace_buf;
+ struct pci_dev *pdev;
+ struct net_device *next;
+ volatile int fw_running;
+ int board_idx;
+ u16 pci_command;
+ u8 pci_latency;
+ const char *name;
+#ifdef INDEX_DEBUG
+ spinlock_t debug_lock
+ __attribute__ ((aligned (SMP_CACHE_BYTES)));
+ u32 last_tx, last_std_rx, last_mini_rx;
+#endif
+ int pci_using_dac;
+ u8 firmware_major;
+ u8 firmware_minor;
+ u8 firmware_fix;
+ u32 firmware_start;
+};
+
+
+#define TX_RESERVED MAX_SKB_FRAGS
+
+static inline int tx_space (struct ace_private *ap, u32 csm, u32 prd)
+{
+ return (csm - prd - 1) & (ACE_TX_RING_ENTRIES(ap) - 1);
+}
+
+#define tx_free(ap) tx_space((ap)->tx_ret_csm, (ap)->tx_prd, ap)
+#define tx_ring_full(ap, csm, prd) (tx_space(ap, csm, prd) <= TX_RESERVED)
+
+static inline void set_aceaddr(aceaddr *aa, dma_addr_t addr)
+{
+ u64 baddr = (u64) addr;
+ aa->addrlo = baddr & 0xffffffff;
+ aa->addrhi = baddr >> 32;
+ wmb();
+}
+
+
+static inline void ace_set_txprd(struct ace_regs __iomem *regs,
+ struct ace_private *ap, u32 value)
+{
+#ifdef INDEX_DEBUG
+ unsigned long flags;
+ spin_lock_irqsave(&ap->debug_lock, flags);
+ writel(value, &regs->TxPrd);
+ if (value == ap->last_tx)
+ printk(KERN_ERR "AceNIC RACE ALERT! writing identical value "
+ "to tx producer (%i)\n", value);
+ ap->last_tx = value;
+ spin_unlock_irqrestore(&ap->debug_lock, flags);
+#else
+ writel(value, &regs->TxPrd);
+#endif
+ wmb();
+}
+
+
+static inline void ace_mask_irq(struct net_device *dev)
+{
+ struct ace_private *ap = netdev_priv(dev);
+ struct ace_regs __iomem *regs = ap->regs;
+
+ if (ACE_IS_TIGON_I(ap))
+ writel(1, &regs->MaskInt);
+ else
+ writel(readl(&regs->HostCtrl) | MASK_INTS, &regs->HostCtrl);
+
+ ace_sync_irq(dev->irq);
+}
+
+
+static inline void ace_unmask_irq(struct net_device *dev)
+{
+ struct ace_private *ap = netdev_priv(dev);
+ struct ace_regs __iomem *regs = ap->regs;
+
+ if (ACE_IS_TIGON_I(ap))
+ writel(0, &regs->MaskInt);
+ else
+ writel(readl(&regs->HostCtrl) & ~MASK_INTS, &regs->HostCtrl);
+}
+
+
+/*
+ * Prototypes
+ */
+static int ace_init(struct net_device *dev);
+static void ace_load_std_rx_ring(struct net_device *dev, int nr_bufs);
+static void ace_load_mini_rx_ring(struct net_device *dev, int nr_bufs);
+static void ace_load_jumbo_rx_ring(struct net_device *dev, int nr_bufs);
+static irqreturn_t ace_interrupt(int irq, void *dev_id);
+static int ace_load_firmware(struct net_device *dev);
+static int ace_open(struct net_device *dev);
+static netdev_tx_t ace_start_xmit(struct sk_buff *skb,
+ struct net_device *dev);
+static int ace_close(struct net_device *dev);
+static void ace_tasklet(unsigned long dev);
+static void ace_dump_trace(struct ace_private *ap);
+static void ace_set_multicast_list(struct net_device *dev);
+static int ace_change_mtu(struct net_device *dev, int new_mtu);
+static int ace_set_mac_addr(struct net_device *dev, void *p);
+static void ace_set_rxtx_parms(struct net_device *dev, int jumbo);
+static int ace_allocate_descriptors(struct net_device *dev);
+static void ace_free_descriptors(struct net_device *dev);
+static void ace_init_cleanup(struct net_device *dev);
+static struct net_device_stats *ace_get_stats(struct net_device *dev);
+static int read_eeprom_byte(struct net_device *dev, unsigned long offset);
+
+#endif /* _ACENIC_H_ */