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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 10:03:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 10:03:46 -0700
commitcb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (patch)
tree536ba39658e47d511a489c52f7aac60cd78967e5 /drivers/net/ethernet/xscale/ixp2000/pm3386.c
parent31ed8e6f93a27304c9e157dab0267772cd94eaad (diff)
parent74863948f925d9f3bb4e3d3a783e49e9c662d839 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller: 1) Get rid of the error prone NLA_PUT*() macros that used an embedded goto. 2) Kill off the token-ring and MCA networking drivers, from Paul Gortmaker. 3) Reduce high-order allocations made by datagram AF_UNIX sockets, from Eric Dumazet. 4) Add PTP hardware clock support to IGB and IXGBE, from Richard Cochran and Jacob Keller. 5) Allow users to query timestamping capabilities of a card via ethtool, from Richard Cochran. 6) Add loadbalance mode to the teaming driver, from Jiri Pirko. Part of this is that we can now have BPF filters not attached to sockets, and the loadbalancing function is calculated using one. 7) Francois Romieu went through the network drivers removing gratuitous uses of netdev->base_addr, perhaps some day we can remove it completely but it's used for ISA probing still. 8) Add a BPF JIT for sparc. I know, who cares, right? :-) 9) Move networking sysctl registry away from using the compatability mode interfaces in the sysctl code. From Eric W Biederman. 10) Pavel Emelyanov added a way to save and restore TCP socket state via TCP_REPAIR, TCP_REPAIR_QUEUE, and TCP_QUEUE_SEQ socket options as well as a way to forcefully bind a socket to a port via the sk->sk_reuse value SK_FORCE_REUSE. There is also a TCP_REPAIR_OPTIONS which allows to reinstante the TCP options enabled on the connection. 11) Several enhancements from Eric Dumazet that, in particular, can enhance splice performance on TCP sockets significantly. a) Reset the offset of the per-socket sendmsg page when we know we're the only use of the page in linear_to_page(). b) Add facilities such that skb->data can be backed a page rather than SLAB kmalloc'd memory. In particular devices which were receiving into linear RX buffers can now end up providing paged data. The big result is that code like splice and GRO do not have to copy any more. 12) Allow a pure sender to more gracefully handle ACK backlogs in TCP. What can happen at high rates is that the sender hasn't grown his receive buffer limits at all (he's not receiving data so really doesn't need to), but the non-data ACKs consume receive buffer space. sk_add_backlog() is too aggressive in dropping frames in this case, so relax it's requirements by using the receive buffer plus the send buffer limit as the backlog limit instead of just the former. Also from Eric Dumazet. 13) Add ipv6 support to L2TP, from Benjamin LaHaise, James Chapman, and Chris Elston. 14) Implement TCP early retransmit (RFC 5827), from Yuchung Cheng. Basically, we can start fast retransmit before hiting the dupack threshold under certain conditions. 15) New CODEL active queue management packet scheduler, from Eric Dumazet based upon initial work by Dave Taht. Basically, the big feature is that packets are dropped (or ECN bits are set) based upon how long packets live in the queue, rather than the queue length (which is what RED uses). * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1341 commits) drivers/net/stmmac: seq_file fix memory leak ipv6/exthdrs: strict Pad1 and PadN check USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z USB: qmi_wwan: Add ZTE (Vodafone) K3765-Z USB: qmi_wwan: Make forced int 4 whitelist generic net/ipv4: replace simple_strtoul with kstrtoul net/ipv4/ipconfig: neaten __setup placement net: qmi_wwan: Add Vodafone/Huawei K5005 support net: cdc_ether: Add ZTE WWAN matches before generic Ethernet ipv6: use skb coalescing in reassembly ipv4: use skb coalescing in defragmentation net: introduce skb_try_coalesce() net:ipv6:fixed space issues relating to operators. net:ipv6:fixed a trailing white space issue. ipv6: disable GSO on sockets hitting dst_allfrag tg3: use netdev_alloc_frag() API net: napi_frags_skb() is static ppp: avoid false drop_monitor false positives ipv6: bool/const conversions phase2 ipx: Remove spurious NULL checking in ipx_ioctl(). ...
Diffstat (limited to 'drivers/net/ethernet/xscale/ixp2000/pm3386.c')
-rw-r--r--drivers/net/ethernet/xscale/ixp2000/pm3386.c351
1 files changed, 0 insertions, 351 deletions
diff --git a/drivers/net/ethernet/xscale/ixp2000/pm3386.c b/drivers/net/ethernet/xscale/ixp2000/pm3386.c
deleted file mode 100644
index e08d3f9863b8..000000000000
--- a/drivers/net/ethernet/xscale/ixp2000/pm3386.c
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * Helper functions for the PM3386s on the Radisys ENP2611
- * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
- * Dedicated to Marija Kulikova.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <asm/io.h>
-#include "pm3386.h"
-
-/*
- * Read from register 'reg' of PM3386 device 'pm'.
- */
-static u16 pm3386_reg_read(int pm, int reg)
-{
- void *_reg;
- u16 value;
-
- _reg = (void *)ENP2611_PM3386_0_VIRT_BASE;
- if (pm == 1)
- _reg = (void *)ENP2611_PM3386_1_VIRT_BASE;
-
- value = *((volatile u16 *)(_reg + (reg << 1)));
-
-// printk(KERN_INFO "pm3386_reg_read(%d, %.3x) = %.8x\n", pm, reg, value);
-
- return value;
-}
-
-/*
- * Write to register 'reg' of PM3386 device 'pm', and perform
- * a readback from the identification register.
- */
-static void pm3386_reg_write(int pm, int reg, u16 value)
-{
- void *_reg;
- u16 dummy;
-
-// printk(KERN_INFO "pm3386_reg_write(%d, %.3x, %.8x)\n", pm, reg, value);
-
- _reg = (void *)ENP2611_PM3386_0_VIRT_BASE;
- if (pm == 1)
- _reg = (void *)ENP2611_PM3386_1_VIRT_BASE;
-
- *((volatile u16 *)(_reg + (reg << 1))) = value;
-
- dummy = *((volatile u16 *)_reg);
- __asm__ __volatile__("mov %0, %0" : "+r" (dummy));
-}
-
-/*
- * Read from port 'port' register 'reg', where the registers
- * for the different ports are 'spacing' registers apart.
- */
-static u16 pm3386_port_reg_read(int port, int _reg, int spacing)
-{
- int reg;
-
- reg = _reg;
- if (port & 1)
- reg += spacing;
-
- return pm3386_reg_read(port >> 1, reg);
-}
-
-/*
- * Write to port 'port' register 'reg', where the registers
- * for the different ports are 'spacing' registers apart.
- */
-static void pm3386_port_reg_write(int port, int _reg, int spacing, u16 value)
-{
- int reg;
-
- reg = _reg;
- if (port & 1)
- reg += spacing;
-
- pm3386_reg_write(port >> 1, reg, value);
-}
-
-int pm3386_secondary_present(void)
-{
- return pm3386_reg_read(1, 0) == 0x3386;
-}
-
-void pm3386_reset(void)
-{
- u8 mac[3][6];
- int secondary;
-
- secondary = pm3386_secondary_present();
-
- /* Save programmed MAC addresses. */
- pm3386_get_mac(0, mac[0]);
- pm3386_get_mac(1, mac[1]);
- if (secondary)
- pm3386_get_mac(2, mac[2]);
-
- /* Assert analog and digital reset. */
- pm3386_reg_write(0, 0x002, 0x0060);
- if (secondary)
- pm3386_reg_write(1, 0x002, 0x0060);
- mdelay(1);
-
- /* Deassert analog reset. */
- pm3386_reg_write(0, 0x002, 0x0062);
- if (secondary)
- pm3386_reg_write(1, 0x002, 0x0062);
- mdelay(10);
-
- /* Deassert digital reset. */
- pm3386_reg_write(0, 0x002, 0x0063);
- if (secondary)
- pm3386_reg_write(1, 0x002, 0x0063);
- mdelay(10);
-
- /* Restore programmed MAC addresses. */
- pm3386_set_mac(0, mac[0]);
- pm3386_set_mac(1, mac[1]);
- if (secondary)
- pm3386_set_mac(2, mac[2]);
-
- /* Disable carrier on all ports. */
- pm3386_set_carrier(0, 0);
- pm3386_set_carrier(1, 0);
- if (secondary)
- pm3386_set_carrier(2, 0);
-}
-
-static u16 swaph(u16 x)
-{
- return ((x << 8) | (x >> 8)) & 0xffff;
-}
-
-int pm3386_port_count(void)
-{
- return 2 + pm3386_secondary_present();
-}
-
-void pm3386_init_port(int port)
-{
- int pm = port >> 1;
-
- /*
- * Work around ENP2611 bootloader programming MAC address
- * in reverse.
- */
- if (pm3386_port_reg_read(port, 0x30a, 0x100) == 0x0000 &&
- (pm3386_port_reg_read(port, 0x309, 0x100) & 0xff00) == 0x5000) {
- u16 temp[3];
-
- temp[0] = pm3386_port_reg_read(port, 0x308, 0x100);
- temp[1] = pm3386_port_reg_read(port, 0x309, 0x100);
- temp[2] = pm3386_port_reg_read(port, 0x30a, 0x100);
- pm3386_port_reg_write(port, 0x308, 0x100, swaph(temp[2]));
- pm3386_port_reg_write(port, 0x309, 0x100, swaph(temp[1]));
- pm3386_port_reg_write(port, 0x30a, 0x100, swaph(temp[0]));
- }
-
- /*
- * Initialise narrowbanding mode. See application note 2010486
- * for more information. (@@@ We also need to issue a reset
- * when ROOL or DOOL are detected.)
- */
- pm3386_port_reg_write(port, 0x708, 0x10, 0xd055);
- udelay(500);
- pm3386_port_reg_write(port, 0x708, 0x10, 0x5055);
-
- /*
- * SPI-3 ingress block. Set 64 bytes SPI-3 burst size
- * towards SPI-3 bridge.
- */
- pm3386_port_reg_write(port, 0x122, 0x20, 0x0002);
-
- /*
- * Enable ingress protocol checking, and soft reset the
- * SPI-3 ingress block.
- */
- pm3386_reg_write(pm, 0x103, 0x0003);
- while (!(pm3386_reg_read(pm, 0x103) & 0x80))
- ;
-
- /*
- * SPI-3 egress block. Gather 12288 bytes of the current
- * packet in the TX fifo before initiating transmit on the
- * SERDES interface. (Prevents TX underflows.)
- */
- pm3386_port_reg_write(port, 0x221, 0x20, 0x0007);
-
- /*
- * Enforce odd parity from the SPI-3 bridge, and soft reset
- * the SPI-3 egress block.
- */
- pm3386_reg_write(pm, 0x203, 0x000d & ~(4 << (port & 1)));
- while ((pm3386_reg_read(pm, 0x203) & 0x000c) != 0x000c)
- ;
-
- /*
- * EGMAC block. Set this channels to reject long preambles,
- * not send or transmit PAUSE frames, enable preamble checking,
- * disable frame length checking, enable FCS appending, enable
- * TX frame padding.
- */
- pm3386_port_reg_write(port, 0x302, 0x100, 0x0113);
-
- /*
- * Soft reset the EGMAC block.
- */
- pm3386_port_reg_write(port, 0x301, 0x100, 0x8000);
- pm3386_port_reg_write(port, 0x301, 0x100, 0x0000);
-
- /*
- * Auto-sense autonegotiation status.
- */
- pm3386_port_reg_write(port, 0x306, 0x100, 0x0100);
-
- /*
- * Allow reception of jumbo frames.
- */
- pm3386_port_reg_write(port, 0x310, 0x100, 9018);
-
- /*
- * Allow transmission of jumbo frames.
- */
- pm3386_port_reg_write(port, 0x336, 0x100, 9018);
-
- /* @@@ Should set 0x337/0x437 (RX forwarding threshold.) */
-
- /*
- * Set autonegotiation parameters to 'no PAUSE, full duplex.'
- */
- pm3386_port_reg_write(port, 0x31c, 0x100, 0x0020);
-
- /*
- * Enable and restart autonegotiation.
- */
- pm3386_port_reg_write(port, 0x318, 0x100, 0x0003);
- pm3386_port_reg_write(port, 0x318, 0x100, 0x0002);
-}
-
-void pm3386_get_mac(int port, u8 *mac)
-{
- u16 temp;
-
- temp = pm3386_port_reg_read(port, 0x308, 0x100);
- mac[0] = temp & 0xff;
- mac[1] = (temp >> 8) & 0xff;
-
- temp = pm3386_port_reg_read(port, 0x309, 0x100);
- mac[2] = temp & 0xff;
- mac[3] = (temp >> 8) & 0xff;
-
- temp = pm3386_port_reg_read(port, 0x30a, 0x100);
- mac[4] = temp & 0xff;
- mac[5] = (temp >> 8) & 0xff;
-}
-
-void pm3386_set_mac(int port, u8 *mac)
-{
- pm3386_port_reg_write(port, 0x308, 0x100, (mac[1] << 8) | mac[0]);
- pm3386_port_reg_write(port, 0x309, 0x100, (mac[3] << 8) | mac[2]);
- pm3386_port_reg_write(port, 0x30a, 0x100, (mac[5] << 8) | mac[4]);
-}
-
-static u32 pm3386_get_stat(int port, u16 base)
-{
- u32 value;
-
- value = pm3386_port_reg_read(port, base, 0x100);
- value |= pm3386_port_reg_read(port, base + 1, 0x100) << 16;
-
- return value;
-}
-
-void pm3386_get_stats(int port, struct net_device_stats *stats)
-{
- /*
- * Snapshot statistics counters.
- */
- pm3386_port_reg_write(port, 0x500, 0x100, 0x0001);
- while (pm3386_port_reg_read(port, 0x500, 0x100) & 0x0001)
- ;
-
- memset(stats, 0, sizeof(*stats));
-
- stats->rx_packets = pm3386_get_stat(port, 0x510);
- stats->tx_packets = pm3386_get_stat(port, 0x590);
- stats->rx_bytes = pm3386_get_stat(port, 0x514);
- stats->tx_bytes = pm3386_get_stat(port, 0x594);
- /* @@@ Add other stats. */
-}
-
-void pm3386_set_carrier(int port, int state)
-{
- pm3386_port_reg_write(port, 0x703, 0x10, state ? 0x1001 : 0x0000);
-}
-
-int pm3386_is_link_up(int port)
-{
- u16 temp;
-
- temp = pm3386_port_reg_read(port, 0x31a, 0x100);
- temp = pm3386_port_reg_read(port, 0x31a, 0x100);
-
- return !!(temp & 0x0002);
-}
-
-void pm3386_enable_rx(int port)
-{
- u16 temp;
-
- temp = pm3386_port_reg_read(port, 0x303, 0x100);
- temp |= 0x1000;
- pm3386_port_reg_write(port, 0x303, 0x100, temp);
-}
-
-void pm3386_disable_rx(int port)
-{
- u16 temp;
-
- temp = pm3386_port_reg_read(port, 0x303, 0x100);
- temp &= 0xefff;
- pm3386_port_reg_write(port, 0x303, 0x100, temp);
-}
-
-void pm3386_enable_tx(int port)
-{
- u16 temp;
-
- temp = pm3386_port_reg_read(port, 0x303, 0x100);
- temp |= 0x4000;
- pm3386_port_reg_write(port, 0x303, 0x100, temp);
-}
-
-void pm3386_disable_tx(int port)
-{
- u16 temp;
-
- temp = pm3386_port_reg_read(port, 0x303, 0x100);
- temp &= 0xbfff;
- pm3386_port_reg_write(port, 0x303, 0x100, temp);
-}
-
-MODULE_LICENSE("GPL");