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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-11 23:27:06 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-11 23:27:06 +0100 |
commit | 70e71ca0af244f48a5dcf56dc435243792e3a495 (patch) | |
tree | f7d9c4c4d9a857a00043e9bf6aa2d6f533a34778 /drivers/net/ethernet/realtek/atp.h | |
parent | Merge tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/t... (diff) | |
parent | Fix race condition between vxlan_sock_add and vxlan_sock_release (diff) | |
download | linux-70e71ca0af244f48a5dcf56dc435243792e3a495.tar.xz linux-70e71ca0af244f48a5dcf56dc435243792e3a495.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) New offloading infrastructure and example 'rocker' driver for
offloading of switching and routing to hardware.
This work was done by a large group of dedicated individuals, not
limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend,
Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu
2) Start making the networking operate on IOV iterators instead of
modifying iov objects in-situ during transfers. Thanks to Al Viro
and Herbert Xu.
3) A set of new netlink interfaces for the TIPC stack, from Richard
Alpe.
4) Remove unnecessary looping during ipv6 routing lookups, from Martin
KaFai Lau.
5) Add PAUSE frame generation support to gianfar driver, from Matei
Pavaluca.
6) Allow for larger reordering levels in TCP, which are easily
achievable in the real world right now, from Eric Dumazet.
7) Add a variable of napi_schedule that doesn't need to disable cpu
interrupts, from Eric Dumazet.
8) Use a doubly linked list to optimize neigh_parms_release(), from
Nicolas Dichtel.
9) Various enhancements to the kernel BPF verifier, and allow eBPF
programs to actually be attached to sockets. From Alexei
Starovoitov.
10) Support TSO/LSO in sunvnet driver, from David L Stevens.
11) Allow controlling ECN usage via routing metrics, from Florian
Westphal.
12) Remote checksum offload, from Tom Herbert.
13) Add split-header receive, BQL, and xmit_more support to amd-xgbe
driver, from Thomas Lendacky.
14) Add MPLS support to openvswitch, from Simon Horman.
15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen
Klassert.
16) Do gro flushes on a per-device basis using a timer, from Eric
Dumazet. This tries to resolve the conflicting goals between the
desired handling of bulk vs. RPC-like traffic.
17) Allow userspace to ask for the CPU upon what a packet was
received/steered, via SO_INCOMING_CPU. From Eric Dumazet.
18) Limit GSO packets to half the current congestion window, from Eric
Dumazet.
19) Add a generic helper so that all drivers set their RSS keys in a
consistent way, from Eric Dumazet.
20) Add xmit_more support to enic driver, from Govindarajulu
Varadarajan.
21) Add VLAN packet scheduler action, from Jiri Pirko.
22) Support configurable RSS hash functions via ethtool, from Eyal
Perry.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits)
Fix race condition between vxlan_sock_add and vxlan_sock_release
net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header
net/mlx4: Add support for A0 steering
net/mlx4: Refactor QUERY_PORT
net/mlx4_core: Add explicit error message when rule doesn't meet configuration
net/mlx4: Add A0 hybrid steering
net/mlx4: Add mlx4_bitmap zone allocator
net/mlx4: Add a check if there are too many reserved QPs
net/mlx4: Change QP allocation scheme
net/mlx4_core: Use tasklet for user-space CQ completion events
net/mlx4_core: Mask out host side virtualization features for guests
net/mlx4_en: Set csum level for encapsulated packets
be2net: Export tunnel offloads only when a VxLAN tunnel is created
gianfar: Fix dma check map error when DMA_API_DEBUG is enabled
cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call
net: fec: only enable mdio interrupt before phy device link up
net: fec: clear all interrupt events to support i.MX6SX
net: fec: reset fep link status in suspend function
net: sock: fix access via invalid file descriptor
net: introduce helper macro for_each_cmsghdr
...
Diffstat (limited to 'drivers/net/ethernet/realtek/atp.h')
-rw-r--r-- | drivers/net/ethernet/realtek/atp.h | 246 |
1 files changed, 127 insertions, 119 deletions
diff --git a/drivers/net/ethernet/realtek/atp.h b/drivers/net/ethernet/realtek/atp.h index 040b13739947..32497f0e537c 100644 --- a/drivers/net/ethernet/realtek/atp.h +++ b/drivers/net/ethernet/realtek/atp.h @@ -6,10 +6,10 @@ /* The header prepended to received packets. */ struct rx_header { - ushort pad; /* Pad. */ - ushort rx_count; - ushort rx_status; /* Unknown bit assignments :-<. */ - ushort cur_addr; /* Apparently the current buffer address(?) */ + ushort pad; /* Pad. */ + ushort rx_count; + ushort rx_status; /* Unknown bit assignments :-<. */ + ushort cur_addr; /* Apparently the current buffer address(?) */ }; #define PAR_DATA 0 @@ -29,22 +29,25 @@ struct rx_header { #define RdAddr 0xC0 #define HNib 0x10 -enum page0_regs -{ - /* The first six registers hold the ethernet physical station address. */ - PAR0 = 0, PAR1 = 1, PAR2 = 2, PAR3 = 3, PAR4 = 4, PAR5 = 5, - TxCNT0 = 6, TxCNT1 = 7, /* The transmit byte count. */ - TxSTAT = 8, RxSTAT = 9, /* Tx and Rx status. */ - ISR = 10, IMR = 11, /* Interrupt status and mask. */ - CMR1 = 12, /* Command register 1. */ - CMR2 = 13, /* Command register 2. */ - MODSEL = 14, /* Mode select register. */ - MAR = 14, /* Memory address register (?). */ - CMR2_h = 0x1d, }; - -enum eepage_regs -{ PROM_CMD = 6, PROM_DATA = 7 }; /* Note that PROM_CMD is in the "high" bits. */ +enum page0_regs { + /* The first six registers hold + * the ethernet physical station address. + */ + PAR0 = 0, PAR1 = 1, PAR2 = 2, PAR3 = 3, PAR4 = 4, PAR5 = 5, + TxCNT0 = 6, TxCNT1 = 7, /* The transmit byte count. */ + TxSTAT = 8, RxSTAT = 9, /* Tx and Rx status. */ + ISR = 10, IMR = 11, /* Interrupt status and mask. */ + CMR1 = 12, /* Command register 1. */ + CMR2 = 13, /* Command register 2. */ + MODSEL = 14, /* Mode select register. */ + MAR = 14, /* Memory address register (?). */ + CMR2_h = 0x1d, +}; +enum eepage_regs { + PROM_CMD = 6, + PROM_DATA = 7 /* Note that PROM_CMD is in the "high" bits. */ +}; #define ISR_TxOK 0x01 #define ISR_RxOK 0x04 @@ -72,141 +75,146 @@ enum eepage_regs #define CMR2h_Normal 2 /* Accept physical and broadcast address. */ #define CMR2h_PROMISC 3 /* Promiscuous mode. */ -/* An inline function used below: it differs from inb() by explicitly return an unsigned - char, saving a truncation. */ +/* An inline function used below: it differs from inb() by explicitly + * return an unsigned char, saving a truncation. + */ static inline unsigned char inbyte(unsigned short port) { - unsigned char _v; - __asm__ __volatile__ ("inb %w1,%b0" :"=a" (_v):"d" (port)); - return _v; + unsigned char _v; + + __asm__ __volatile__ ("inb %w1,%b0" : "=a" (_v) : "d" (port)); + return _v; } /* Read register OFFSET. - This command should always be terminated with read_end(). */ + * This command should always be terminated with read_end(). + */ static inline unsigned char read_nibble(short port, unsigned char offset) { - unsigned char retval; - outb(EOC+offset, port + PAR_DATA); - outb(RdAddr+offset, port + PAR_DATA); - inbyte(port + PAR_STATUS); /* Settling time delay */ - retval = inbyte(port + PAR_STATUS); - outb(EOC+offset, port + PAR_DATA); - - return retval; + unsigned char retval; + + outb(EOC+offset, port + PAR_DATA); + outb(RdAddr+offset, port + PAR_DATA); + inbyte(port + PAR_STATUS); /* Settling time delay */ + retval = inbyte(port + PAR_STATUS); + outb(EOC+offset, port + PAR_DATA); + + return retval; } /* Functions for bulk data read. The interrupt line is always disabled. */ /* Get a byte using read mode 0, reading data from the control lines. */ static inline unsigned char read_byte_mode0(short ioaddr) { - unsigned char low_nib; - - outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL); - inbyte(ioaddr + PAR_STATUS); - low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; - outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL); - inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */ - inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */ - return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); + unsigned char low_nib; + + outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL); + inbyte(ioaddr + PAR_STATUS); + low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; + outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL); + inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */ + inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */ + return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); } /* The same as read_byte_mode0(), but does multiple inb()s for stability. */ static inline unsigned char read_byte_mode2(short ioaddr) { - unsigned char low_nib; - - outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL); - inbyte(ioaddr + PAR_STATUS); - low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; - outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL); - inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */ - return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); + unsigned char low_nib; + + outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL); + inbyte(ioaddr + PAR_STATUS); + low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; + outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL); + inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */ + return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); } /* Read a byte through the data register. */ static inline unsigned char read_byte_mode4(short ioaddr) { - unsigned char low_nib; + unsigned char low_nib; - outb(RdAddr | MAR, ioaddr + PAR_DATA); - low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; - outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA); - return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); + outb(RdAddr | MAR, ioaddr + PAR_DATA); + low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; + outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA); + return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); } /* Read a byte through the data register, double reading to allow settling. */ static inline unsigned char read_byte_mode6(short ioaddr) { - unsigned char low_nib; - - outb(RdAddr | MAR, ioaddr + PAR_DATA); - inbyte(ioaddr + PAR_STATUS); - low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; - outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA); - inbyte(ioaddr + PAR_STATUS); - return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); + unsigned char low_nib; + + outb(RdAddr | MAR, ioaddr + PAR_DATA); + inbyte(ioaddr + PAR_STATUS); + low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f; + outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA); + inbyte(ioaddr + PAR_STATUS); + return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0); } static inline void write_reg(short port, unsigned char reg, unsigned char value) { - unsigned char outval; - outb(EOC | reg, port + PAR_DATA); - outval = WrAddr | reg; - outb(outval, port + PAR_DATA); - outb(outval, port + PAR_DATA); /* Double write for PS/2. */ - - outval &= 0xf0; - outval |= value; - outb(outval, port + PAR_DATA); - outval &= 0x1f; - outb(outval, port + PAR_DATA); - outb(outval, port + PAR_DATA); - - outb(EOC | outval, port + PAR_DATA); + unsigned char outval; + + outb(EOC | reg, port + PAR_DATA); + outval = WrAddr | reg; + outb(outval, port + PAR_DATA); + outb(outval, port + PAR_DATA); /* Double write for PS/2. */ + + outval &= 0xf0; + outval |= value; + outb(outval, port + PAR_DATA); + outval &= 0x1f; + outb(outval, port + PAR_DATA); + outb(outval, port + PAR_DATA); + + outb(EOC | outval, port + PAR_DATA); } static inline void write_reg_high(short port, unsigned char reg, unsigned char value) { - unsigned char outval = EOC | HNib | reg; + unsigned char outval = EOC | HNib | reg; - outb(outval, port + PAR_DATA); - outval &= WrAddr | HNib | 0x0f; - outb(outval, port + PAR_DATA); - outb(outval, port + PAR_DATA); /* Double write for PS/2. */ + outb(outval, port + PAR_DATA); + outval &= WrAddr | HNib | 0x0f; + outb(outval, port + PAR_DATA); + outb(outval, port + PAR_DATA); /* Double write for PS/2. */ - outval = WrAddr | HNib | value; - outb(outval, port + PAR_DATA); - outval &= HNib | 0x0f; /* HNib | value */ - outb(outval, port + PAR_DATA); - outb(outval, port + PAR_DATA); + outval = WrAddr | HNib | value; + outb(outval, port + PAR_DATA); + outval &= HNib | 0x0f; /* HNib | value */ + outb(outval, port + PAR_DATA); + outb(outval, port + PAR_DATA); - outb(EOC | HNib | outval, port + PAR_DATA); + outb(EOC | HNib | outval, port + PAR_DATA); } /* Write a byte out using nibble mode. The low nibble is written first. */ static inline void write_reg_byte(short port, unsigned char reg, unsigned char value) { - unsigned char outval; - outb(EOC | reg, port + PAR_DATA); /* Reset the address register. */ - outval = WrAddr | reg; - outb(outval, port + PAR_DATA); - outb(outval, port + PAR_DATA); /* Double write for PS/2. */ - - outb((outval & 0xf0) | (value & 0x0f), port + PAR_DATA); - outb(value & 0x0f, port + PAR_DATA); - value >>= 4; - outb(value, port + PAR_DATA); - outb(0x10 | value, port + PAR_DATA); - outb(0x10 | value, port + PAR_DATA); - - outb(EOC | value, port + PAR_DATA); /* Reset the address register. */ + unsigned char outval; + + outb(EOC | reg, port + PAR_DATA); /* Reset the address register. */ + outval = WrAddr | reg; + outb(outval, port + PAR_DATA); + outb(outval, port + PAR_DATA); /* Double write for PS/2. */ + + outb((outval & 0xf0) | (value & 0x0f), port + PAR_DATA); + outb(value & 0x0f, port + PAR_DATA); + value >>= 4; + outb(value, port + PAR_DATA); + outb(0x10 | value, port + PAR_DATA); + outb(0x10 | value, port + PAR_DATA); + + outb(EOC | value, port + PAR_DATA); /* Reset the address register. */ } -/* - * Bulk data writes to the packet buffer. The interrupt line remains enabled. +/* Bulk data writes to the packet buffer. The interrupt line remains enabled. * The first, faster method uses only the dataport (data modes 0, 2 & 4). * The second (backup) method uses data and control regs (modes 1, 3 & 5). * It should only be needed when there is skew between the individual data @@ -214,28 +222,28 @@ write_reg_byte(short port, unsigned char reg, unsigned char value) */ static inline void write_byte_mode0(short ioaddr, unsigned char value) { - outb(value & 0x0f, ioaddr + PAR_DATA); - outb((value>>4) | 0x10, ioaddr + PAR_DATA); + outb(value & 0x0f, ioaddr + PAR_DATA); + outb((value>>4) | 0x10, ioaddr + PAR_DATA); } static inline void write_byte_mode1(short ioaddr, unsigned char value) { - outb(value & 0x0f, ioaddr + PAR_DATA); - outb(Ctrl_IRQEN | Ctrl_LNibWrite, ioaddr + PAR_CONTROL); - outb((value>>4) | 0x10, ioaddr + PAR_DATA); - outb(Ctrl_IRQEN | Ctrl_HNibWrite, ioaddr + PAR_CONTROL); + outb(value & 0x0f, ioaddr + PAR_DATA); + outb(Ctrl_IRQEN | Ctrl_LNibWrite, ioaddr + PAR_CONTROL); + outb((value>>4) | 0x10, ioaddr + PAR_DATA); + outb(Ctrl_IRQEN | Ctrl_HNibWrite, ioaddr + PAR_CONTROL); } /* Write 16bit VALUE to the packet buffer: the same as above just doubled. */ static inline void write_word_mode0(short ioaddr, unsigned short value) { - outb(value & 0x0f, ioaddr + PAR_DATA); - value >>= 4; - outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA); - value >>= 4; - outb(value & 0x0f, ioaddr + PAR_DATA); - value >>= 4; - outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA); + outb(value & 0x0f, ioaddr + PAR_DATA); + value >>= 4; + outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA); + value >>= 4; + outb(value & 0x0f, ioaddr + PAR_DATA); + value >>= 4; + outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA); } /* EEPROM_Ctrl bits. */ @@ -248,10 +256,10 @@ static inline void write_word_mode0(short ioaddr, unsigned short value) /* Delay between EEPROM clock transitions. */ #define eeprom_delay(ticks) \ -do { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0) +do { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; } } while (0) /* The EEPROM commands include the alway-set leading bit. */ #define EE_WRITE_CMD(offset) (((5 << 6) + (offset)) << 17) -#define EE_READ(offset) (((6 << 6) + (offset)) << 17) +#define EE_READ(offset) (((6 << 6) + (offset)) << 17) #define EE_ERASE(offset) (((7 << 6) + (offset)) << 17) #define EE_CMD_SIZE 27 /* The command+address+data size. */ |