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linux_dsm_epyc7002/drivers/net/ethernet/freescale/ucc_geth.c
Linus Torvalds 42a2d923cc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:

 1) The addition of nftables.  No longer will we need protocol aware
    firewall filtering modules, it can all live in userspace.

    At the core of nftables is a, for lack of a better term, virtual
    machine that executes byte codes to inspect packet or metadata
    (arriving interface index, etc.) and make verdict decisions.

    Besides support for loading packet contents and comparing them, the
    interpreter supports lookups in various datastructures as
    fundamental operations.  For example sets are supports, and
    therefore one could create a set of whitelist IP address entries
    which have ACCEPT verdicts attached to them, and use the appropriate
    byte codes to do such lookups.

    Since the interpreted code is composed in userspace, userspace can
    do things like optimize things before giving it to the kernel.

    Another major improvement is the capability of atomically updating
    portions of the ruleset.  In the existing netfilter implementation,
    one has to update the entire rule set in order to make a change and
    this is very expensive.

    Userspace tools exist to create nftables rules using existing
    netfilter rule sets, but both kernel implementations will need to
    co-exist for quite some time as we transition from the old to the
    new stuff.

    Kudos to Patrick McHardy, Pablo Neira Ayuso, and others who have
    worked so hard on this.

 2) Daniel Borkmann and Hannes Frederic Sowa made several improvements
    to our pseudo-random number generator, mostly used for things like
    UDP port randomization and netfitler, amongst other things.

    In particular the taus88 generater is updated to taus113, and test
    cases are added.

 3) Support 64-bit rates in HTB and TBF schedulers, from Eric Dumazet
    and Yang Yingliang.

 4) Add support for new 577xx tigon3 chips to tg3 driver, from Nithin
    Sujir.

 5) Fix two fatal flaws in TCP dynamic right sizing, from Eric Dumazet,
    Neal Cardwell, and Yuchung Cheng.

 6) Allow IP_TOS and IP_TTL to be specified in sendmsg() ancillary
    control message data, much like other socket option attributes.
    From Francesco Fusco.

 7) Allow applications to specify a cap on the rate computed
    automatically by the kernel for pacing flows, via a new
    SO_MAX_PACING_RATE socket option.  From Eric Dumazet.

 8) Make the initial autotuned send buffer sizing in TCP more closely
    reflect actual needs, from Eric Dumazet.

 9) Currently early socket demux only happens for TCP sockets, but we
    can do it for connected UDP sockets too.  Implementation from Shawn
    Bohrer.

10) Refactor inet socket demux with the goal of improving hash demux
    performance for listening sockets.  With the main goals being able
    to use RCU lookups on even request sockets, and eliminating the
    listening lock contention.  From Eric Dumazet.

11) The bonding layer has many demuxes in it's fast path, and an RCU
    conversion was started back in 3.11, several changes here extend the
    RCU usage to even more locations.  From Ding Tianhong and Wang
    Yufen, based upon suggestions by Nikolay Aleksandrov and Veaceslav
    Falico.

12) Allow stackability of segmentation offloads to, in particular, allow
    segmentation offloading over tunnels.  From Eric Dumazet.

13) Significantly improve the handling of secret keys we input into the
    various hash functions in the inet hashtables, TCP fast open, as
    well as syncookies.  From Hannes Frederic Sowa.  The key fundamental
    operation is "net_get_random_once()" which uses static keys.

    Hannes even extended this to ipv4/ipv6 fragmentation handling and
    our generic flow dissector.

14) The generic driver layer takes care now to set the driver data to
    NULL on device removal, so it's no longer necessary for drivers to
    explicitly set it to NULL any more.  Many drivers have been cleaned
    up in this way, from Jingoo Han.

15) Add a BPF based packet scheduler classifier, from Daniel Borkmann.

16) Improve CRC32 interfaces and generic SKB checksum iterators so that
    SCTP's checksumming can more cleanly be handled.  Also from Daniel
    Borkmann.

17) Add a new PMTU discovery mode, IP_PMTUDISC_INTERFACE, which forces
    using the interface MTU value.  This helps avoid PMTU attacks,
    particularly on DNS servers.  From Hannes Frederic Sowa.

18) Use generic XPS for transmit queue steering rather than internal
    (re-)implementation in virtio-net.  From Jason Wang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  random32: add test cases for taus113 implementation
  random32: upgrade taus88 generator to taus113 from errata paper
  random32: move rnd_state to linux/random.h
  random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized
  random32: add periodic reseeding
  random32: fix off-by-one in seeding requirement
  PHY: Add RTL8201CP phy_driver to realtek
  xtsonic: add missing platform_set_drvdata() in xtsonic_probe()
  macmace: add missing platform_set_drvdata() in mace_probe()
  ethernet/arc/arc_emac: add missing platform_set_drvdata() in arc_emac_probe()
  ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh
  vlan: Implement vlan_dev_get_egress_qos_mask as an inline.
  ixgbe: add warning when max_vfs is out of range.
  igb: Update link modes display in ethtool
  netfilter: push reasm skb through instead of original frag skbs
  ip6_output: fragment outgoing reassembled skb properly
  MAINTAINERS: mv643xx_eth: take over maintainership from Lennart
  net_sched: tbf: support of 64bit rates
  ixgbe: deleting dfwd stations out of order can cause null ptr deref
  ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS
  ...
2013-11-13 17:40:34 +09:00

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/*
* Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
*
* Author: Shlomi Gridish <gridish@freescale.com>
* Li Yang <leoli@freescale.com>
*
* Description:
* QE UCC Gigabit Ethernet Driver
*
* 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.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/workqueue.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include <linux/of_platform.h>
#include <asm/uaccess.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/immap_qe.h>
#include <asm/qe.h>
#include <asm/ucc.h>
#include <asm/ucc_fast.h>
#include <asm/machdep.h>
#include "ucc_geth.h"
#undef DEBUG
#define ugeth_printk(level, format, arg...) \
printk(level format "\n", ## arg)
#define ugeth_dbg(format, arg...) \
ugeth_printk(KERN_DEBUG , format , ## arg)
#ifdef UGETH_VERBOSE_DEBUG
#define ugeth_vdbg ugeth_dbg
#else
#define ugeth_vdbg(fmt, args...) do { } while (0)
#endif /* UGETH_VERBOSE_DEBUG */
#define UGETH_MSG_DEFAULT (NETIF_MSG_IFUP << 1 ) - 1
static DEFINE_SPINLOCK(ugeth_lock);
static struct {
u32 msg_enable;
} debug = { -1 };
module_param_named(debug, debug.msg_enable, int, 0);
MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
static struct ucc_geth_info ugeth_primary_info = {
.uf_info = {
.bd_mem_part = MEM_PART_SYSTEM,
.rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
.max_rx_buf_length = 1536,
/* adjusted at startup if max-speed 1000 */
.urfs = UCC_GETH_URFS_INIT,
.urfet = UCC_GETH_URFET_INIT,
.urfset = UCC_GETH_URFSET_INIT,
.utfs = UCC_GETH_UTFS_INIT,
.utfet = UCC_GETH_UTFET_INIT,
.utftt = UCC_GETH_UTFTT_INIT,
.ufpt = 256,
.mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
.ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
.tenc = UCC_FAST_TX_ENCODING_NRZ,
.renc = UCC_FAST_RX_ENCODING_NRZ,
.tcrc = UCC_FAST_16_BIT_CRC,
.synl = UCC_FAST_SYNC_LEN_NOT_USED,
},
.numQueuesTx = 1,
.numQueuesRx = 1,
.extendedFilteringChainPointer = ((uint32_t) NULL),
.typeorlen = 3072 /*1536 */ ,
.nonBackToBackIfgPart1 = 0x40,
.nonBackToBackIfgPart2 = 0x60,
.miminumInterFrameGapEnforcement = 0x50,
.backToBackInterFrameGap = 0x60,
.mblinterval = 128,
.nortsrbytetime = 5,
.fracsiz = 1,
.strictpriorityq = 0xff,
.altBebTruncation = 0xa,
.excessDefer = 1,
.maxRetransmission = 0xf,
.collisionWindow = 0x37,
.receiveFlowControl = 1,
.transmitFlowControl = 1,
.maxGroupAddrInHash = 4,
.maxIndAddrInHash = 4,
.prel = 7,
.maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */
.minFrameLength = 64,
.maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */
.maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */
.vlantype = 0x8100,
.ecamptr = ((uint32_t) NULL),
.eventRegMask = UCCE_OTHER,
.pausePeriod = 0xf000,
.interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
.bdRingLenTx = {
TX_BD_RING_LEN,
TX_BD_RING_LEN,
TX_BD_RING_LEN,
TX_BD_RING_LEN,
TX_BD_RING_LEN,
TX_BD_RING_LEN,
TX_BD_RING_LEN,
TX_BD_RING_LEN},
.bdRingLenRx = {
RX_BD_RING_LEN,
RX_BD_RING_LEN,
RX_BD_RING_LEN,
RX_BD_RING_LEN,
RX_BD_RING_LEN,
RX_BD_RING_LEN,
RX_BD_RING_LEN,
RX_BD_RING_LEN},
.numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
.largestexternallookupkeysize =
QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
.statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
.vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
.vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
.rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
.aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
.padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
.numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
.numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
.riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
};
static struct ucc_geth_info ugeth_info[8];
#ifdef DEBUG
static void mem_disp(u8 *addr, int size)
{
u8 *i;
int size16Aling = (size >> 4) << 4;
int size4Aling = (size >> 2) << 2;
int notAlign = 0;
if (size % 16)
notAlign = 1;
for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
printk("0x%08x: %08x %08x %08x %08x\r\n",
(u32) i,
*((u32 *) (i)),
*((u32 *) (i + 4)),
*((u32 *) (i + 8)), *((u32 *) (i + 12)));
if (notAlign == 1)
printk("0x%08x: ", (u32) i);
for (; (u32) i < (u32) addr + size4Aling; i += 4)
printk("%08x ", *((u32 *) (i)));
for (; (u32) i < (u32) addr + size; i++)
printk("%02x", *((i)));
if (notAlign == 1)
printk("\r\n");
}
#endif /* DEBUG */
static struct list_head *dequeue(struct list_head *lh)
{
unsigned long flags;
spin_lock_irqsave(&ugeth_lock, flags);
if (!list_empty(lh)) {
struct list_head *node = lh->next;
list_del(node);
spin_unlock_irqrestore(&ugeth_lock, flags);
return node;
} else {
spin_unlock_irqrestore(&ugeth_lock, flags);
return NULL;
}
}
static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
u8 __iomem *bd)
{
struct sk_buff *skb;
skb = netdev_alloc_skb(ugeth->ndev,
ugeth->ug_info->uf_info.max_rx_buf_length +
UCC_GETH_RX_DATA_BUF_ALIGNMENT);
if (!skb)
return NULL;
/* We need the data buffer to be aligned properly. We will reserve
* as many bytes as needed to align the data properly
*/
skb_reserve(skb,
UCC_GETH_RX_DATA_BUF_ALIGNMENT -
(((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
1)));
out_be32(&((struct qe_bd __iomem *)bd)->buf,
dma_map_single(ugeth->dev,
skb->data,
ugeth->ug_info->uf_info.max_rx_buf_length +
UCC_GETH_RX_DATA_BUF_ALIGNMENT,
DMA_FROM_DEVICE));
out_be32((u32 __iomem *)bd,
(R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
return skb;
}
static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
{
u8 __iomem *bd;
u32 bd_status;
struct sk_buff *skb;
int i;
bd = ugeth->p_rx_bd_ring[rxQ];
i = 0;
do {
bd_status = in_be32((u32 __iomem *)bd);
skb = get_new_skb(ugeth, bd);
if (!skb) /* If can not allocate data buffer,
abort. Cleanup will be elsewhere */
return -ENOMEM;
ugeth->rx_skbuff[rxQ][i] = skb;
/* advance the BD pointer */
bd += sizeof(struct qe_bd);
i++;
} while (!(bd_status & R_W));
return 0;
}
static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
u32 *p_start,
u8 num_entries,
u32 thread_size,
u32 thread_alignment,
unsigned int risc,
int skip_page_for_first_entry)
{
u32 init_enet_offset;
u8 i;
int snum;
for (i = 0; i < num_entries; i++) {
if ((snum = qe_get_snum()) < 0) {
if (netif_msg_ifup(ugeth))
pr_err("Can not get SNUM\n");
return snum;
}
if ((i == 0) && skip_page_for_first_entry)
/* First entry of Rx does not have page */
init_enet_offset = 0;
else {
init_enet_offset =
qe_muram_alloc(thread_size, thread_alignment);
if (IS_ERR_VALUE(init_enet_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory\n");
qe_put_snum((u8) snum);
return -ENOMEM;
}
}
*(p_start++) =
((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
| risc;
}
return 0;
}
static int return_init_enet_entries(struct ucc_geth_private *ugeth,
u32 *p_start,
u8 num_entries,
unsigned int risc,
int skip_page_for_first_entry)
{
u32 init_enet_offset;
u8 i;
int snum;
for (i = 0; i < num_entries; i++) {
u32 val = *p_start;
/* Check that this entry was actually valid --
needed in case failed in allocations */
if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
snum =
(u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
ENET_INIT_PARAM_SNUM_SHIFT;
qe_put_snum((u8) snum);
if (!((i == 0) && skip_page_for_first_entry)) {
/* First entry of Rx does not have page */
init_enet_offset =
(val & ENET_INIT_PARAM_PTR_MASK);
qe_muram_free(init_enet_offset);
}
*p_start++ = 0;
}
}
return 0;
}
#ifdef DEBUG
static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
u32 __iomem *p_start,
u8 num_entries,
u32 thread_size,
unsigned int risc,
int skip_page_for_first_entry)
{
u32 init_enet_offset;
u8 i;
int snum;
for (i = 0; i < num_entries; i++) {
u32 val = in_be32(p_start);
/* Check that this entry was actually valid --
needed in case failed in allocations */
if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
snum =
(u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
ENET_INIT_PARAM_SNUM_SHIFT;
qe_put_snum((u8) snum);
if (!((i == 0) && skip_page_for_first_entry)) {
/* First entry of Rx does not have page */
init_enet_offset =
(in_be32(p_start) &
ENET_INIT_PARAM_PTR_MASK);
pr_info("Init enet entry %d:\n", i);
pr_info("Base address: 0x%08x\n",
(u32)qe_muram_addr(init_enet_offset));
mem_disp(qe_muram_addr(init_enet_offset),
thread_size);
}
p_start++;
}
}
return 0;
}
#endif
static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
{
kfree(enet_addr_cont);
}
static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
{
out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
}
static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
{
struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
if (paddr_num >= NUM_OF_PADDRS) {
pr_warn("%s: Invalid paddr_num: %u\n", __func__, paddr_num);
return -EINVAL;
}
p_82xx_addr_filt =
(struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
addressfiltering;
/* Writing address ff.ff.ff.ff.ff.ff disables address
recognition for this register */
out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
return 0;
}
static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
u8 *p_enet_addr)
{
struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
u32 cecr_subblock;
p_82xx_addr_filt =
(struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
addressfiltering;
cecr_subblock =
ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
/* Ethernet frames are defined in Little Endian mode,
therefore to insert */
/* the address to the hash (Big Endian mode), we reverse the bytes.*/
set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
QE_CR_PROTOCOL_ETHERNET, 0);
}
static inline int compare_addr(u8 **addr1, u8 **addr2)
{
return memcmp(addr1, addr2, ETH_ALEN);
}
#ifdef DEBUG
static void get_statistics(struct ucc_geth_private *ugeth,
struct ucc_geth_tx_firmware_statistics *
tx_firmware_statistics,
struct ucc_geth_rx_firmware_statistics *
rx_firmware_statistics,
struct ucc_geth_hardware_statistics *hardware_statistics)
{
struct ucc_fast __iomem *uf_regs;
struct ucc_geth __iomem *ug_regs;
struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
ug_regs = ugeth->ug_regs;
uf_regs = (struct ucc_fast __iomem *) ug_regs;
p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
/* Tx firmware only if user handed pointer and driver actually
gathers Tx firmware statistics */
if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
tx_firmware_statistics->sicoltx =
in_be32(&p_tx_fw_statistics_pram->sicoltx);
tx_firmware_statistics->mulcoltx =
in_be32(&p_tx_fw_statistics_pram->mulcoltx);
tx_firmware_statistics->latecoltxfr =
in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
tx_firmware_statistics->frabortduecol =
in_be32(&p_tx_fw_statistics_pram->frabortduecol);
tx_firmware_statistics->frlostinmactxer =
in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
tx_firmware_statistics->carriersenseertx =
in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
tx_firmware_statistics->frtxok =
in_be32(&p_tx_fw_statistics_pram->frtxok);
tx_firmware_statistics->txfrexcessivedefer =
in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
tx_firmware_statistics->txpkts256 =
in_be32(&p_tx_fw_statistics_pram->txpkts256);
tx_firmware_statistics->txpkts512 =
in_be32(&p_tx_fw_statistics_pram->txpkts512);
tx_firmware_statistics->txpkts1024 =
in_be32(&p_tx_fw_statistics_pram->txpkts1024);
tx_firmware_statistics->txpktsjumbo =
in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
}
/* Rx firmware only if user handed pointer and driver actually
* gathers Rx firmware statistics */
if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
int i;
rx_firmware_statistics->frrxfcser =
in_be32(&p_rx_fw_statistics_pram->frrxfcser);
rx_firmware_statistics->fraligner =
in_be32(&p_rx_fw_statistics_pram->fraligner);
rx_firmware_statistics->inrangelenrxer =
in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
rx_firmware_statistics->outrangelenrxer =
in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
rx_firmware_statistics->frtoolong =
in_be32(&p_rx_fw_statistics_pram->frtoolong);
rx_firmware_statistics->runt =
in_be32(&p_rx_fw_statistics_pram->runt);
rx_firmware_statistics->verylongevent =
in_be32(&p_rx_fw_statistics_pram->verylongevent);
rx_firmware_statistics->symbolerror =
in_be32(&p_rx_fw_statistics_pram->symbolerror);
rx_firmware_statistics->dropbsy =
in_be32(&p_rx_fw_statistics_pram->dropbsy);
for (i = 0; i < 0x8; i++)
rx_firmware_statistics->res0[i] =
p_rx_fw_statistics_pram->res0[i];
rx_firmware_statistics->mismatchdrop =
in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
rx_firmware_statistics->underpkts =
in_be32(&p_rx_fw_statistics_pram->underpkts);
rx_firmware_statistics->pkts256 =
in_be32(&p_rx_fw_statistics_pram->pkts256);
rx_firmware_statistics->pkts512 =
in_be32(&p_rx_fw_statistics_pram->pkts512);
rx_firmware_statistics->pkts1024 =
in_be32(&p_rx_fw_statistics_pram->pkts1024);
rx_firmware_statistics->pktsjumbo =
in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
rx_firmware_statistics->frlossinmacer =
in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
rx_firmware_statistics->pausefr =
in_be32(&p_rx_fw_statistics_pram->pausefr);
for (i = 0; i < 0x4; i++)
rx_firmware_statistics->res1[i] =
p_rx_fw_statistics_pram->res1[i];
rx_firmware_statistics->removevlan =
in_be32(&p_rx_fw_statistics_pram->removevlan);
rx_firmware_statistics->replacevlan =
in_be32(&p_rx_fw_statistics_pram->replacevlan);
rx_firmware_statistics->insertvlan =
in_be32(&p_rx_fw_statistics_pram->insertvlan);
}
/* Hardware only if user handed pointer and driver actually
gathers hardware statistics */
if (hardware_statistics &&
(in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
hardware_statistics->txok = in_be32(&ug_regs->txok);
hardware_statistics->txcf = in_be16(&ug_regs->txcf);
hardware_statistics->tmca = in_be32(&ug_regs->tmca);
hardware_statistics->tbca = in_be32(&ug_regs->tbca);
hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
hardware_statistics->rmca = in_be32(&ug_regs->rmca);
hardware_statistics->rbca = in_be32(&ug_regs->rbca);
}
}
static void dump_bds(struct ucc_geth_private *ugeth)
{
int i;
int length;
for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
if (ugeth->p_tx_bd_ring[i]) {
length =
(ugeth->ug_info->bdRingLenTx[i] *
sizeof(struct qe_bd));
pr_info("TX BDs[%d]\n", i);
mem_disp(ugeth->p_tx_bd_ring[i], length);
}
}
for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
if (ugeth->p_rx_bd_ring[i]) {
length =
(ugeth->ug_info->bdRingLenRx[i] *
sizeof(struct qe_bd));
pr_info("RX BDs[%d]\n", i);
mem_disp(ugeth->p_rx_bd_ring[i], length);
}
}
}
static void dump_regs(struct ucc_geth_private *ugeth)
{
int i;
pr_info("UCC%d Geth registers:\n", ugeth->ug_info->uf_info.ucc_num + 1);
pr_info("Base address: 0x%08x\n", (u32)ugeth->ug_regs);
pr_info("maccfg1 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->maccfg1,
in_be32(&ugeth->ug_regs->maccfg1));
pr_info("maccfg2 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->maccfg2,
in_be32(&ugeth->ug_regs->maccfg2));
pr_info("ipgifg : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->ipgifg,
in_be32(&ugeth->ug_regs->ipgifg));
pr_info("hafdup : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->hafdup,
in_be32(&ugeth->ug_regs->hafdup));
pr_info("ifctl : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->ifctl,
in_be32(&ugeth->ug_regs->ifctl));
pr_info("ifstat : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->ifstat,
in_be32(&ugeth->ug_regs->ifstat));
pr_info("macstnaddr1: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->macstnaddr1,
in_be32(&ugeth->ug_regs->macstnaddr1));
pr_info("macstnaddr2: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->macstnaddr2,
in_be32(&ugeth->ug_regs->macstnaddr2));
pr_info("uempr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->uempr,
in_be32(&ugeth->ug_regs->uempr));
pr_info("utbipar : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->utbipar,
in_be32(&ugeth->ug_regs->utbipar));
pr_info("uescr : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->ug_regs->uescr,
in_be16(&ugeth->ug_regs->uescr));
pr_info("tx64 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->tx64,
in_be32(&ugeth->ug_regs->tx64));
pr_info("tx127 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->tx127,
in_be32(&ugeth->ug_regs->tx127));
pr_info("tx255 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->tx255,
in_be32(&ugeth->ug_regs->tx255));
pr_info("rx64 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rx64,
in_be32(&ugeth->ug_regs->rx64));
pr_info("rx127 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rx127,
in_be32(&ugeth->ug_regs->rx127));
pr_info("rx255 : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rx255,
in_be32(&ugeth->ug_regs->rx255));
pr_info("txok : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->txok,
in_be32(&ugeth->ug_regs->txok));
pr_info("txcf : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->ug_regs->txcf,
in_be16(&ugeth->ug_regs->txcf));
pr_info("tmca : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->tmca,
in_be32(&ugeth->ug_regs->tmca));
pr_info("tbca : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->tbca,
in_be32(&ugeth->ug_regs->tbca));
pr_info("rxfok : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rxfok,
in_be32(&ugeth->ug_regs->rxfok));
pr_info("rxbok : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rxbok,
in_be32(&ugeth->ug_regs->rxbok));
pr_info("rbyt : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rbyt,
in_be32(&ugeth->ug_regs->rbyt));
pr_info("rmca : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rmca,
in_be32(&ugeth->ug_regs->rmca));
pr_info("rbca : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->rbca,
in_be32(&ugeth->ug_regs->rbca));
pr_info("scar : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->scar,
in_be32(&ugeth->ug_regs->scar));
pr_info("scam : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->ug_regs->scam,
in_be32(&ugeth->ug_regs->scam));
if (ugeth->p_thread_data_tx) {
int numThreadsTxNumerical;
switch (ugeth->ug_info->numThreadsTx) {
case UCC_GETH_NUM_OF_THREADS_1:
numThreadsTxNumerical = 1;
break;
case UCC_GETH_NUM_OF_THREADS_2:
numThreadsTxNumerical = 2;
break;
case UCC_GETH_NUM_OF_THREADS_4:
numThreadsTxNumerical = 4;
break;
case UCC_GETH_NUM_OF_THREADS_6:
numThreadsTxNumerical = 6;
break;
case UCC_GETH_NUM_OF_THREADS_8:
numThreadsTxNumerical = 8;
break;
default:
numThreadsTxNumerical = 0;
break;
}
pr_info("Thread data TXs:\n");
pr_info("Base address: 0x%08x\n",
(u32)ugeth->p_thread_data_tx);
for (i = 0; i < numThreadsTxNumerical; i++) {
pr_info("Thread data TX[%d]:\n", i);
pr_info("Base address: 0x%08x\n",
(u32)&ugeth->p_thread_data_tx[i]);
mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
sizeof(struct ucc_geth_thread_data_tx));
}
}
if (ugeth->p_thread_data_rx) {
int numThreadsRxNumerical;
switch (ugeth->ug_info->numThreadsRx) {
case UCC_GETH_NUM_OF_THREADS_1:
numThreadsRxNumerical = 1;
break;
case UCC_GETH_NUM_OF_THREADS_2:
numThreadsRxNumerical = 2;
break;
case UCC_GETH_NUM_OF_THREADS_4:
numThreadsRxNumerical = 4;
break;
case UCC_GETH_NUM_OF_THREADS_6:
numThreadsRxNumerical = 6;
break;
case UCC_GETH_NUM_OF_THREADS_8:
numThreadsRxNumerical = 8;
break;
default:
numThreadsRxNumerical = 0;
break;
}
pr_info("Thread data RX:\n");
pr_info("Base address: 0x%08x\n",
(u32)ugeth->p_thread_data_rx);
for (i = 0; i < numThreadsRxNumerical; i++) {
pr_info("Thread data RX[%d]:\n", i);
pr_info("Base address: 0x%08x\n",
(u32)&ugeth->p_thread_data_rx[i]);
mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
sizeof(struct ucc_geth_thread_data_rx));
}
}
if (ugeth->p_exf_glbl_param) {
pr_info("EXF global param:\n");
pr_info("Base address: 0x%08x\n",
(u32)ugeth->p_exf_glbl_param);
mem_disp((u8 *) ugeth->p_exf_glbl_param,
sizeof(*ugeth->p_exf_glbl_param));
}
if (ugeth->p_tx_glbl_pram) {
pr_info("TX global param:\n");
pr_info("Base address: 0x%08x\n", (u32)ugeth->p_tx_glbl_pram);
pr_info("temoder : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_tx_glbl_pram->temoder,
in_be16(&ugeth->p_tx_glbl_pram->temoder));
pr_info("sqptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->sqptr,
in_be32(&ugeth->p_tx_glbl_pram->sqptr));
pr_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->schedulerbasepointer,
in_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer));
pr_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->txrmonbaseptr,
in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
pr_info("tstate : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->tstate,
in_be32(&ugeth->p_tx_glbl_pram->tstate));
pr_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[0],
ugeth->p_tx_glbl_pram->iphoffset[0]);
pr_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[1],
ugeth->p_tx_glbl_pram->iphoffset[1]);
pr_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[2],
ugeth->p_tx_glbl_pram->iphoffset[2]);
pr_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[3],
ugeth->p_tx_glbl_pram->iphoffset[3]);
pr_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[4],
ugeth->p_tx_glbl_pram->iphoffset[4]);
pr_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[5],
ugeth->p_tx_glbl_pram->iphoffset[5]);
pr_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[6],
ugeth->p_tx_glbl_pram->iphoffset[6]);
pr_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_tx_glbl_pram->iphoffset[7],
ugeth->p_tx_glbl_pram->iphoffset[7]);
pr_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[0],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
pr_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[1],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
pr_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[2],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
pr_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[3],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
pr_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[4],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
pr_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[5],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
pr_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[6],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
pr_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->vtagtable[7],
in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
pr_info("tqptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_tx_glbl_pram->tqptr,
in_be32(&ugeth->p_tx_glbl_pram->tqptr));
}
if (ugeth->p_rx_glbl_pram) {
pr_info("RX global param:\n");
pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_glbl_pram);
pr_info("remoder : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->remoder,
in_be32(&ugeth->p_rx_glbl_pram->remoder));
pr_info("rqptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->rqptr,
in_be32(&ugeth->p_rx_glbl_pram->rqptr));
pr_info("typeorlen : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->typeorlen,
in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
pr_info("rxgstpack : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_rx_glbl_pram->rxgstpack,
ugeth->p_rx_glbl_pram->rxgstpack);
pr_info("rxrmonbaseptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
pr_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->intcoalescingptr,
in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
pr_info("rstate : addr - 0x%08x, val - 0x%02x\n",
(u32)&ugeth->p_rx_glbl_pram->rstate,
ugeth->p_rx_glbl_pram->rstate);
pr_info("mrblr : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->mrblr,
in_be16(&ugeth->p_rx_glbl_pram->mrblr));
pr_info("rbdqptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->rbdqptr,
in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
pr_info("mflr : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->mflr,
in_be16(&ugeth->p_rx_glbl_pram->mflr));
pr_info("minflr : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->minflr,
in_be16(&ugeth->p_rx_glbl_pram->minflr));
pr_info("maxd1 : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->maxd1,
in_be16(&ugeth->p_rx_glbl_pram->maxd1));
pr_info("maxd2 : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->maxd2,
in_be16(&ugeth->p_rx_glbl_pram->maxd2));
pr_info("ecamptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->ecamptr,
in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
pr_info("l2qt : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l2qt,
in_be32(&ugeth->p_rx_glbl_pram->l2qt));
pr_info("l3qt[0] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[0],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
pr_info("l3qt[1] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[1],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
pr_info("l3qt[2] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[2],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
pr_info("l3qt[3] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[3],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
pr_info("l3qt[4] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[4],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
pr_info("l3qt[5] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[5],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
pr_info("l3qt[6] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[6],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
pr_info("l3qt[7] : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->l3qt[7],
in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
pr_info("vlantype : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->vlantype,
in_be16(&ugeth->p_rx_glbl_pram->vlantype));
pr_info("vlantci : addr - 0x%08x, val - 0x%04x\n",
(u32)&ugeth->p_rx_glbl_pram->vlantci,
in_be16(&ugeth->p_rx_glbl_pram->vlantci));
for (i = 0; i < 64; i++)
pr_info("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x\n",
i,
(u32)&ugeth->p_rx_glbl_pram->addressfiltering[i],
ugeth->p_rx_glbl_pram->addressfiltering[i]);
pr_info("exfGlobalParam : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_glbl_pram->exfGlobalParam,
in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
}
if (ugeth->p_send_q_mem_reg) {
pr_info("Send Q memory registers:\n");
pr_info("Base address: 0x%08x\n", (u32)ugeth->p_send_q_mem_reg);
for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
pr_info("SQQD[%d]:\n", i);
pr_info("Base address: 0x%08x\n",
(u32)&ugeth->p_send_q_mem_reg->sqqd[i]);
mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
sizeof(struct ucc_geth_send_queue_qd));
}
}
if (ugeth->p_scheduler) {
pr_info("Scheduler:\n");
pr_info("Base address: 0x%08x\n", (u32)ugeth->p_scheduler);
mem_disp((u8 *) ugeth->p_scheduler,
sizeof(*ugeth->p_scheduler));
}
if (ugeth->p_tx_fw_statistics_pram) {
pr_info("TX FW statistics pram:\n");
pr_info("Base address: 0x%08x\n",
(u32)ugeth->p_tx_fw_statistics_pram);
mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
sizeof(*ugeth->p_tx_fw_statistics_pram));
}
if (ugeth->p_rx_fw_statistics_pram) {
pr_info("RX FW statistics pram:\n");
pr_info("Base address: 0x%08x\n",
(u32)ugeth->p_rx_fw_statistics_pram);
mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
sizeof(*ugeth->p_rx_fw_statistics_pram));
}
if (ugeth->p_rx_irq_coalescing_tbl) {
pr_info("RX IRQ coalescing tables:\n");
pr_info("Base address: 0x%08x\n",
(u32)ugeth->p_rx_irq_coalescing_tbl);
for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
pr_info("RX IRQ coalescing table entry[%d]:\n", i);
pr_info("Base address: 0x%08x\n",
(u32)&ugeth->p_rx_irq_coalescing_tbl->
coalescingentry[i]);
pr_info("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_irq_coalescing_tbl->
coalescingentry[i].interruptcoalescingmaxvalue,
in_be32(&ugeth->p_rx_irq_coalescing_tbl->
coalescingentry[i].
interruptcoalescingmaxvalue));
pr_info("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_irq_coalescing_tbl->
coalescingentry[i].interruptcoalescingcounter,
in_be32(&ugeth->p_rx_irq_coalescing_tbl->
coalescingentry[i].
interruptcoalescingcounter));
}
}
if (ugeth->p_rx_bd_qs_tbl) {
pr_info("RX BD QS tables:\n");
pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_bd_qs_tbl);
for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
pr_info("RX BD QS table[%d]:\n", i);
pr_info("Base address: 0x%08x\n",
(u32)&ugeth->p_rx_bd_qs_tbl[i]);
pr_info("bdbaseptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
pr_info("bdptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_bd_qs_tbl[i].bdptr,
in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
pr_info("externalbdbaseptr: addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
in_be32(&ugeth->p_rx_bd_qs_tbl[i].
externalbdbaseptr));
pr_info("externalbdptr : addr - 0x%08x, val - 0x%08x\n",
(u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
pr_info("ucode RX Prefetched BDs:\n");
pr_info("Base address: 0x%08x\n",
(u32)qe_muram_addr(in_be32
(&ugeth->p_rx_bd_qs_tbl[i].
bdbaseptr)));
mem_disp((u8 *)
qe_muram_addr(in_be32
(&ugeth->p_rx_bd_qs_tbl[i].
bdbaseptr)),
sizeof(struct ucc_geth_rx_prefetched_bds));
}
}
if (ugeth->p_init_enet_param_shadow) {
int size;
pr_info("Init enet param shadow:\n");
pr_info("Base address: 0x%08x\n",
(u32) ugeth->p_init_enet_param_shadow);
mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
sizeof(*ugeth->p_init_enet_param_shadow));
size = sizeof(struct ucc_geth_thread_rx_pram);
if (ugeth->ug_info->rxExtendedFiltering) {
size +=
THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
if (ugeth->ug_info->largestexternallookupkeysize ==
QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
size +=
THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
if (ugeth->ug_info->largestexternallookupkeysize ==
QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
size +=
THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
}
dump_init_enet_entries(ugeth,
&(ugeth->p_init_enet_param_shadow->
txthread[0]),
ENET_INIT_PARAM_MAX_ENTRIES_TX,
sizeof(struct ucc_geth_thread_tx_pram),
ugeth->ug_info->riscTx, 0);
dump_init_enet_entries(ugeth,
&(ugeth->p_init_enet_param_shadow->
rxthread[0]),
ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
ugeth->ug_info->riscRx, 1);
}
}
#endif /* DEBUG */
static void init_default_reg_vals(u32 __iomem *upsmr_register,
u32 __iomem *maccfg1_register,
u32 __iomem *maccfg2_register)
{
out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
}
static int init_half_duplex_params(int alt_beb,
int back_pressure_no_backoff,
int no_backoff,
int excess_defer,
u8 alt_beb_truncation,
u8 max_retransmissions,
u8 collision_window,
u32 __iomem *hafdup_register)
{
u32 value = 0;
if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
(max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
(collision_window > HALFDUP_COLLISION_WINDOW_MAX))
return -EINVAL;
value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
if (alt_beb)
value |= HALFDUP_ALT_BEB;
if (back_pressure_no_backoff)
value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
if (no_backoff)
value |= HALFDUP_NO_BACKOFF;
if (excess_defer)
value |= HALFDUP_EXCESSIVE_DEFER;
value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
value |= collision_window;
out_be32(hafdup_register, value);
return 0;
}
static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
u8 non_btb_ipg,
u8 min_ifg,
u8 btb_ipg,
u32 __iomem *ipgifg_register)
{
u32 value = 0;
/* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
IPG part 2 */
if (non_btb_cs_ipg > non_btb_ipg)
return -EINVAL;
if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
(non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
/*(min_ifg > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
(btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
return -EINVAL;
value |=
((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
IPGIFG_NBTB_CS_IPG_MASK);
value |=
((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
IPGIFG_NBTB_IPG_MASK);
value |=
((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
IPGIFG_MIN_IFG_MASK);
value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
out_be32(ipgifg_register, value);
return 0;
}
int init_flow_control_params(u32 automatic_flow_control_mode,
int rx_flow_control_enable,
int tx_flow_control_enable,
u16 pause_period,
u16 extension_field,
u32 __iomem *upsmr_register,
u32 __iomem *uempr_register,
u32 __iomem *maccfg1_register)
{
u32 value = 0;
/* Set UEMPR register */
value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
out_be32(uempr_register, value);
/* Set UPSMR register */
setbits32(upsmr_register, automatic_flow_control_mode);
value = in_be32(maccfg1_register);
if (rx_flow_control_enable)
value |= MACCFG1_FLOW_RX;
if (tx_flow_control_enable)
value |= MACCFG1_FLOW_TX;
out_be32(maccfg1_register, value);
return 0;
}
static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
int auto_zero_hardware_statistics,
u32 __iomem *upsmr_register,
u16 __iomem *uescr_register)
{
u16 uescr_value = 0;
/* Enable hardware statistics gathering if requested */
if (enable_hardware_statistics)
setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
/* Clear hardware statistics counters */
uescr_value = in_be16(uescr_register);
uescr_value |= UESCR_CLRCNT;
/* Automatically zero hardware statistics counters on read,
if requested */
if (auto_zero_hardware_statistics)
uescr_value |= UESCR_AUTOZ;
out_be16(uescr_register, uescr_value);
return 0;
}
static int init_firmware_statistics_gathering_mode(int
enable_tx_firmware_statistics,
int enable_rx_firmware_statistics,
u32 __iomem *tx_rmon_base_ptr,
u32 tx_firmware_statistics_structure_address,
u32 __iomem *rx_rmon_base_ptr,
u32 rx_firmware_statistics_structure_address,
u16 __iomem *temoder_register,
u32 __iomem *remoder_register)
{
/* Note: this function does not check if */
/* the parameters it receives are NULL */
if (enable_tx_firmware_statistics) {
out_be32(tx_rmon_base_ptr,
tx_firmware_statistics_structure_address);
setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
}
if (enable_rx_firmware_statistics) {
out_be32(rx_rmon_base_ptr,
rx_firmware_statistics_structure_address);
setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
}
return 0;
}
static int init_mac_station_addr_regs(u8 address_byte_0,
u8 address_byte_1,
u8 address_byte_2,
u8 address_byte_3,
u8 address_byte_4,
u8 address_byte_5,
u32 __iomem *macstnaddr1_register,
u32 __iomem *macstnaddr2_register)
{
u32 value = 0;
/* Example: for a station address of 0x12345678ABCD, */
/* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
/* MACSTNADDR1 Register: */
/* 0 7 8 15 */
/* station address byte 5 station address byte 4 */
/* 16 23 24 31 */
/* station address byte 3 station address byte 2 */
value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
out_be32(macstnaddr1_register, value);
/* MACSTNADDR2 Register: */
/* 0 7 8 15 */
/* station address byte 1 station address byte 0 */
/* 16 23 24 31 */
/* reserved reserved */
value = 0;
value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
out_be32(macstnaddr2_register, value);
return 0;
}
static int init_check_frame_length_mode(int length_check,
u32 __iomem *maccfg2_register)
{
u32 value = 0;
value = in_be32(maccfg2_register);
if (length_check)
value |= MACCFG2_LC;
else
value &= ~MACCFG2_LC;
out_be32(maccfg2_register, value);
return 0;
}
static int init_preamble_length(u8 preamble_length,
u32 __iomem *maccfg2_register)
{
if ((preamble_length < 3) || (preamble_length > 7))
return -EINVAL;
clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
preamble_length << MACCFG2_PREL_SHIFT);
return 0;
}
static int init_rx_parameters(int reject_broadcast,
int receive_short_frames,
int promiscuous, u32 __iomem *upsmr_register)
{
u32 value = 0;
value = in_be32(upsmr_register);
if (reject_broadcast)
value |= UCC_GETH_UPSMR_BRO;
else
value &= ~UCC_GETH_UPSMR_BRO;
if (receive_short_frames)
value |= UCC_GETH_UPSMR_RSH;
else
value &= ~UCC_GETH_UPSMR_RSH;
if (promiscuous)
value |= UCC_GETH_UPSMR_PRO;
else
value &= ~UCC_GETH_UPSMR_PRO;
out_be32(upsmr_register, value);
return 0;
}
static int init_max_rx_buff_len(u16 max_rx_buf_len,
u16 __iomem *mrblr_register)
{
/* max_rx_buf_len value must be a multiple of 128 */
if ((max_rx_buf_len == 0) ||
(max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
return -EINVAL;
out_be16(mrblr_register, max_rx_buf_len);
return 0;
}
static int init_min_frame_len(u16 min_frame_length,
u16 __iomem *minflr_register,
u16 __iomem *mrblr_register)
{
u16 mrblr_value = 0;
mrblr_value = in_be16(mrblr_register);
if (min_frame_length >= (mrblr_value - 4))
return -EINVAL;
out_be16(minflr_register, min_frame_length);
return 0;
}
static int adjust_enet_interface(struct ucc_geth_private *ugeth)
{
struct ucc_geth_info *ug_info;
struct ucc_geth __iomem *ug_regs;
struct ucc_fast __iomem *uf_regs;
int ret_val;
u32 upsmr, maccfg2;
u16 value;
ugeth_vdbg("%s: IN", __func__);
ug_info = ugeth->ug_info;
ug_regs = ugeth->ug_regs;
uf_regs = ugeth->uccf->uf_regs;
/* Set MACCFG2 */
maccfg2 = in_be32(&ug_regs->maccfg2);
maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
if ((ugeth->max_speed == SPEED_10) ||
(ugeth->max_speed == SPEED_100))
maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
else if (ugeth->max_speed == SPEED_1000)
maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
maccfg2 |= ug_info->padAndCrc;
out_be32(&ug_regs->maccfg2, maccfg2);
/* Set UPSMR */
upsmr = in_be32(&uf_regs->upsmr);
upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
upsmr |= UCC_GETH_UPSMR_RPM;
switch (ugeth->max_speed) {
case SPEED_10:
upsmr |= UCC_GETH_UPSMR_R10M;
/* FALLTHROUGH */
case SPEED_100:
if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
upsmr |= UCC_GETH_UPSMR_RMM;
}
}
if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
upsmr |= UCC_GETH_UPSMR_TBIM;
}
if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
upsmr |= UCC_GETH_UPSMR_SGMM;
out_be32(&uf_regs->upsmr, upsmr);
/* Disable autonegotiation in tbi mode, because by default it
comes up in autonegotiation mode. */
/* Note that this depends on proper setting in utbipar register. */
if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
struct ucc_geth_info *ug_info = ugeth->ug_info;
struct phy_device *tbiphy;
if (!ug_info->tbi_node)
pr_warn("TBI mode requires that the device tree specify a tbi-handle\n");
tbiphy = of_phy_find_device(ug_info->tbi_node);
if (!tbiphy)
pr_warn("Could not get TBI device\n");
value = phy_read(tbiphy, ENET_TBI_MII_CR);
value &= ~0x1000; /* Turn off autonegotiation */
phy_write(tbiphy, ENET_TBI_MII_CR, value);
}
init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
if (ret_val != 0) {
if (netif_msg_probe(ugeth))
pr_err("Preamble length must be between 3 and 7 inclusive\n");
return ret_val;
}
return 0;
}
static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
{
struct ucc_fast_private *uccf;
u32 cecr_subblock;
u32 temp;
int i = 10;
uccf = ugeth->uccf;
/* Mask GRACEFUL STOP TX interrupt bit and clear it */
clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA); /* clear by writing 1 */
/* Issue host command */
cecr_subblock =
ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
QE_CR_PROTOCOL_ETHERNET, 0);
/* Wait for command to complete */
do {
msleep(10);
temp = in_be32(uccf->p_ucce);
} while (!(temp & UCC_GETH_UCCE_GRA) && --i);
uccf->stopped_tx = 1;
return 0;
}
static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
{
struct ucc_fast_private *uccf;
u32 cecr_subblock;
u8 temp;
int i = 10;
uccf = ugeth->uccf;
/* Clear acknowledge bit */
temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
/* Keep issuing command and checking acknowledge bit until
it is asserted, according to spec */
do {
/* Issue host command */
cecr_subblock =
ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
ucc_num);
qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
QE_CR_PROTOCOL_ETHERNET, 0);
msleep(10);
temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
} while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
uccf->stopped_rx = 1;
return 0;
}
static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
{
struct ucc_fast_private *uccf;
u32 cecr_subblock;
uccf = ugeth->uccf;
cecr_subblock =
ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
uccf->stopped_tx = 0;
return 0;
}
static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
{
struct ucc_fast_private *uccf;
u32 cecr_subblock;
uccf = ugeth->uccf;
cecr_subblock =
ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
0);
uccf->stopped_rx = 0;
return 0;
}
static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
{
struct ucc_fast_private *uccf;
int enabled_tx, enabled_rx;
uccf = ugeth->uccf;
/* check if the UCC number is in range. */
if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
if (netif_msg_probe(ugeth))
pr_err("ucc_num out of range\n");
return -EINVAL;
}
enabled_tx = uccf->enabled_tx;
enabled_rx = uccf->enabled_rx;
/* Get Tx and Rx going again, in case this channel was actively
disabled. */
if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
ugeth_restart_tx(ugeth);
if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
ugeth_restart_rx(ugeth);
ucc_fast_enable(uccf, mode); /* OK to do even if not disabled */
return 0;
}
static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
{
struct ucc_fast_private *uccf;
uccf = ugeth->uccf;
/* check if the UCC number is in range. */
if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
if (netif_msg_probe(ugeth))
pr_err("ucc_num out of range\n");
return -EINVAL;
}
/* Stop any transmissions */
if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
ugeth_graceful_stop_tx(ugeth);
/* Stop any receptions */
if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
ugeth_graceful_stop_rx(ugeth);
ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
return 0;
}
static void ugeth_quiesce(struct ucc_geth_private *ugeth)
{
/* Prevent any further xmits, plus detach the device. */
netif_device_detach(ugeth->ndev);
/* Wait for any current xmits to finish. */
netif_tx_disable(ugeth->ndev);
/* Disable the interrupt to avoid NAPI rescheduling. */
disable_irq(ugeth->ug_info->uf_info.irq);
/* Stop NAPI, and possibly wait for its completion. */
napi_disable(&ugeth->napi);
}
static void ugeth_activate(struct ucc_geth_private *ugeth)
{
napi_enable(&ugeth->napi);
enable_irq(ugeth->ug_info->uf_info.irq);
netif_device_attach(ugeth->ndev);
}
/* Called every time the controller might need to be made
* aware of new link state. The PHY code conveys this
* information through variables in the ugeth structure, and this
* function converts those variables into the appropriate
* register values, and can bring down the device if needed.
*/
static void adjust_link(struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct ucc_geth __iomem *ug_regs;
struct ucc_fast __iomem *uf_regs;
struct phy_device *phydev = ugeth->phydev;
int new_state = 0;
ug_regs = ugeth->ug_regs;
uf_regs = ugeth->uccf->uf_regs;
if (phydev->link) {
u32 tempval = in_be32(&ug_regs->maccfg2);
u32 upsmr = in_be32(&uf_regs->upsmr);
/* Now we make sure that we can be in full duplex mode.
* If not, we operate in half-duplex mode. */
if (phydev->duplex != ugeth->oldduplex) {
new_state = 1;
if (!(phydev->duplex))
tempval &= ~(MACCFG2_FDX);
else
tempval |= MACCFG2_FDX;
ugeth->oldduplex = phydev->duplex;
}
if (phydev->speed != ugeth->oldspeed) {
new_state = 1;
switch (phydev->speed) {
case SPEED_1000:
tempval = ((tempval &
~(MACCFG2_INTERFACE_MODE_MASK)) |
MACCFG2_INTERFACE_MODE_BYTE);
break;
case SPEED_100:
case SPEED_10:
tempval = ((tempval &
~(MACCFG2_INTERFACE_MODE_MASK)) |
MACCFG2_INTERFACE_MODE_NIBBLE);
/* if reduced mode, re-set UPSMR.R10M */
if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
(ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
if (phydev->speed == SPEED_10)
upsmr |= UCC_GETH_UPSMR_R10M;
else
upsmr &= ~UCC_GETH_UPSMR_R10M;
}
break;
default:
if (netif_msg_link(ugeth))
pr_warn(
"%s: Ack! Speed (%d) is not 10/100/1000!",
dev->name, phydev->speed);
break;
}
ugeth->oldspeed = phydev->speed;
}
if (!ugeth->oldlink) {
new_state = 1;
ugeth->oldlink = 1;
}
if (new_state) {
/*
* To change the MAC configuration we need to disable
* the controller. To do so, we have to either grab
* ugeth->lock, which is a bad idea since 'graceful
* stop' commands might take quite a while, or we can
* quiesce driver's activity.
*/
ugeth_quiesce(ugeth);
ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
out_be32(&ug_regs->maccfg2, tempval);
out_be32(&uf_regs->upsmr, upsmr);
ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
ugeth_activate(ugeth);
}
} else if (ugeth->oldlink) {
new_state = 1;
ugeth->oldlink = 0;
ugeth->oldspeed = 0;
ugeth->oldduplex = -1;
}
if (new_state && netif_msg_link(ugeth))
phy_print_status(phydev);
}
/* Initialize TBI PHY interface for communicating with the
* SERDES lynx PHY on the chip. We communicate with this PHY
* through the MDIO bus on each controller, treating it as a
* "normal" PHY at the address found in the UTBIPA register. We assume
* that the UTBIPA register is valid. Either the MDIO bus code will set
* it to a value that doesn't conflict with other PHYs on the bus, or the
* value doesn't matter, as there are no other PHYs on the bus.
*/
static void uec_configure_serdes(struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct ucc_geth_info *ug_info = ugeth->ug_info;
struct phy_device *tbiphy;
if (!ug_info->tbi_node) {
dev_warn(&dev->dev, "SGMII mode requires that the device "
"tree specify a tbi-handle\n");
return;
}
tbiphy = of_phy_find_device(ug_info->tbi_node);
if (!tbiphy) {
dev_err(&dev->dev, "error: Could not get TBI device\n");
return;
}
/*
* If the link is already up, we must already be ok, and don't need to
* configure and reset the TBI<->SerDes link. Maybe U-Boot configured
* everything for us? Resetting it takes the link down and requires
* several seconds for it to come back.
*/
if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
return;
/* Single clk mode, mii mode off(for serdes communication) */
phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
}
/* Configure the PHY for dev.
* returns 0 if success. -1 if failure
*/
static int init_phy(struct net_device *dev)
{
struct ucc_geth_private *priv = netdev_priv(dev);
struct ucc_geth_info *ug_info = priv->ug_info;
struct phy_device *phydev;
priv->oldlink = 0;
priv->oldspeed = 0;
priv->oldduplex = -1;
phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
priv->phy_interface);
if (!phydev)
phydev = of_phy_connect_fixed_link(dev, &adjust_link,
priv->phy_interface);
if (!phydev) {
dev_err(&dev->dev, "Could not attach to PHY\n");
return -ENODEV;
}
if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
uec_configure_serdes(dev);
phydev->supported &= (SUPPORTED_MII |
SUPPORTED_Autoneg |
ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full);
if (priv->max_speed == SPEED_1000)
phydev->supported |= ADVERTISED_1000baseT_Full;
phydev->advertising = phydev->supported;
priv->phydev = phydev;
return 0;
}
static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
{
#ifdef DEBUG
ucc_fast_dump_regs(ugeth->uccf);
dump_regs(ugeth);
dump_bds(ugeth);
#endif
}
static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
ugeth,
enum enet_addr_type
enet_addr_type)
{
struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
struct ucc_fast_private *uccf;
enum comm_dir comm_dir;
struct list_head *p_lh;
u16 i, num;
u32 __iomem *addr_h;
u32 __iomem *addr_l;
u8 *p_counter;
uccf = ugeth->uccf;
p_82xx_addr_filt =
(struct ucc_geth_82xx_address_filtering_pram __iomem *)
ugeth->p_rx_glbl_pram->addressfiltering;
if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
addr_h = &(p_82xx_addr_filt->gaddr_h);
addr_l = &(p_82xx_addr_filt->gaddr_l);
p_lh = &ugeth->group_hash_q;
p_counter = &(ugeth->numGroupAddrInHash);
} else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
addr_h = &(p_82xx_addr_filt->iaddr_h);
addr_l = &(p_82xx_addr_filt->iaddr_l);
p_lh = &ugeth->ind_hash_q;
p_counter = &(ugeth->numIndAddrInHash);
} else
return -EINVAL;
comm_dir = 0;
if (uccf->enabled_tx)
comm_dir |= COMM_DIR_TX;
if (uccf->enabled_rx)
comm_dir |= COMM_DIR_RX;
if (comm_dir)
ugeth_disable(ugeth, comm_dir);
/* Clear the hash table. */
out_be32(addr_h, 0x00000000);
out_be32(addr_l, 0x00000000);
if (!p_lh)
return 0;
num = *p_counter;
/* Delete all remaining CQ elements */
for (i = 0; i < num; i++)
put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
*p_counter = 0;
if (comm_dir)
ugeth_enable(ugeth, comm_dir);
return 0;
}
static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
u8 paddr_num)
{
ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
}
static void ucc_geth_free_rx(struct ucc_geth_private *ugeth)
{
struct ucc_geth_info *ug_info;
struct ucc_fast_info *uf_info;
u16 i, j;
u8 __iomem *bd;
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
if (ugeth->p_rx_bd_ring[i]) {
/* Return existing data buffers in ring */
bd = ugeth->p_rx_bd_ring[i];
for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
if (ugeth->rx_skbuff[i][j]) {
dma_unmap_single(ugeth->dev,
in_be32(&((struct qe_bd __iomem *)bd)->buf),
ugeth->ug_info->
uf_info.max_rx_buf_length +
UCC_GETH_RX_DATA_BUF_ALIGNMENT,
DMA_FROM_DEVICE);
dev_kfree_skb_any(
ugeth->rx_skbuff[i][j]);
ugeth->rx_skbuff[i][j] = NULL;
}
bd += sizeof(struct qe_bd);
}
kfree(ugeth->rx_skbuff[i]);
if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_SYSTEM)
kfree((void *)ugeth->rx_bd_ring_offset[i]);
else if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_MURAM)
qe_muram_free(ugeth->rx_bd_ring_offset[i]);
ugeth->p_rx_bd_ring[i] = NULL;
}
}
}
static void ucc_geth_free_tx(struct ucc_geth_private *ugeth)
{
struct ucc_geth_info *ug_info;
struct ucc_fast_info *uf_info;
u16 i, j;
u8 __iomem *bd;
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
bd = ugeth->p_tx_bd_ring[i];
if (!bd)
continue;
for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
if (ugeth->tx_skbuff[i][j]) {
dma_unmap_single(ugeth->dev,
in_be32(&((struct qe_bd __iomem *)bd)->buf),
(in_be32((u32 __iomem *)bd) &
BD_LENGTH_MASK),
DMA_TO_DEVICE);
dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
ugeth->tx_skbuff[i][j] = NULL;
}
}
kfree(ugeth->tx_skbuff[i]);
if (ugeth->p_tx_bd_ring[i]) {
if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_SYSTEM)
kfree((void *)ugeth->tx_bd_ring_offset[i]);
else if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_MURAM)
qe_muram_free(ugeth->tx_bd_ring_offset[i]);
ugeth->p_tx_bd_ring[i] = NULL;
}
}
}
static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
{
if (!ugeth)
return;
if (ugeth->uccf) {
ucc_fast_free(ugeth->uccf);
ugeth->uccf = NULL;
}
if (ugeth->p_thread_data_tx) {
qe_muram_free(ugeth->thread_dat_tx_offset);
ugeth->p_thread_data_tx = NULL;
}
if (ugeth->p_thread_data_rx) {
qe_muram_free(ugeth->thread_dat_rx_offset);
ugeth->p_thread_data_rx = NULL;
}
if (ugeth->p_exf_glbl_param) {
qe_muram_free(ugeth->exf_glbl_param_offset);
ugeth->p_exf_glbl_param = NULL;
}
if (ugeth->p_rx_glbl_pram) {
qe_muram_free(ugeth->rx_glbl_pram_offset);
ugeth->p_rx_glbl_pram = NULL;
}
if (ugeth->p_tx_glbl_pram) {
qe_muram_free(ugeth->tx_glbl_pram_offset);
ugeth->p_tx_glbl_pram = NULL;
}
if (ugeth->p_send_q_mem_reg) {
qe_muram_free(ugeth->send_q_mem_reg_offset);
ugeth->p_send_q_mem_reg = NULL;
}
if (ugeth->p_scheduler) {
qe_muram_free(ugeth->scheduler_offset);
ugeth->p_scheduler = NULL;
}
if (ugeth->p_tx_fw_statistics_pram) {
qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
ugeth->p_tx_fw_statistics_pram = NULL;
}
if (ugeth->p_rx_fw_statistics_pram) {
qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
ugeth->p_rx_fw_statistics_pram = NULL;
}
if (ugeth->p_rx_irq_coalescing_tbl) {
qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
ugeth->p_rx_irq_coalescing_tbl = NULL;
}
if (ugeth->p_rx_bd_qs_tbl) {
qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
ugeth->p_rx_bd_qs_tbl = NULL;
}
if (ugeth->p_init_enet_param_shadow) {
return_init_enet_entries(ugeth,
&(ugeth->p_init_enet_param_shadow->
rxthread[0]),
ENET_INIT_PARAM_MAX_ENTRIES_RX,
ugeth->ug_info->riscRx, 1);
return_init_enet_entries(ugeth,
&(ugeth->p_init_enet_param_shadow->
txthread[0]),
ENET_INIT_PARAM_MAX_ENTRIES_TX,
ugeth->ug_info->riscTx, 0);
kfree(ugeth->p_init_enet_param_shadow);
ugeth->p_init_enet_param_shadow = NULL;
}
ucc_geth_free_tx(ugeth);
ucc_geth_free_rx(ugeth);
while (!list_empty(&ugeth->group_hash_q))
put_enet_addr_container(ENET_ADDR_CONT_ENTRY
(dequeue(&ugeth->group_hash_q)));
while (!list_empty(&ugeth->ind_hash_q))
put_enet_addr_container(ENET_ADDR_CONT_ENTRY
(dequeue(&ugeth->ind_hash_q)));
if (ugeth->ug_regs) {
iounmap(ugeth->ug_regs);
ugeth->ug_regs = NULL;
}
}
static void ucc_geth_set_multi(struct net_device *dev)
{
struct ucc_geth_private *ugeth;
struct netdev_hw_addr *ha;
struct ucc_fast __iomem *uf_regs;
struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
ugeth = netdev_priv(dev);
uf_regs = ugeth->uccf->uf_regs;
if (dev->flags & IFF_PROMISC) {
setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
} else {
clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
p_82xx_addr_filt =
(struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
p_rx_glbl_pram->addressfiltering;
if (dev->flags & IFF_ALLMULTI) {
/* Catch all multicast addresses, so set the
* filter to all 1's.
*/
out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
} else {
/* Clear filter and add the addresses in the list.
*/
out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
netdev_for_each_mc_addr(ha, dev) {
/* Ask CPM to run CRC and set bit in
* filter mask.
*/
hw_add_addr_in_hash(ugeth, ha->addr);
}
}
}
}
static void ucc_geth_stop(struct ucc_geth_private *ugeth)
{
struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
struct phy_device *phydev = ugeth->phydev;
ugeth_vdbg("%s: IN", __func__);
/*
* Tell the kernel the link is down.
* Must be done before disabling the controller
* or deadlock may happen.
*/
phy_stop(phydev);
/* Disable the controller */
ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
/* Mask all interrupts */
out_be32(ugeth->uccf->p_uccm, 0x00000000);
/* Clear all interrupts */
out_be32(ugeth->uccf->p_ucce, 0xffffffff);
/* Disable Rx and Tx */
clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
ucc_geth_memclean(ugeth);
}
static int ucc_struct_init(struct ucc_geth_private *ugeth)
{
struct ucc_geth_info *ug_info;
struct ucc_fast_info *uf_info;
int i;
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
(uf_info->bd_mem_part == MEM_PART_MURAM))) {
if (netif_msg_probe(ugeth))
pr_err("Bad memory partition value\n");
return -EINVAL;
}
/* Rx BD lengths */
for (i = 0; i < ug_info->numQueuesRx; i++) {
if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
(ug_info->bdRingLenRx[i] %
UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
if (netif_msg_probe(ugeth))
pr_err("Rx BD ring length must be multiple of 4, no smaller than 8\n");
return -EINVAL;
}
}
/* Tx BD lengths */
for (i = 0; i < ug_info->numQueuesTx; i++) {
if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
if (netif_msg_probe(ugeth))
pr_err("Tx BD ring length must be no smaller than 2\n");
return -EINVAL;
}
}
/* mrblr */
if ((uf_info->max_rx_buf_length == 0) ||
(uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
if (netif_msg_probe(ugeth))
pr_err("max_rx_buf_length must be non-zero multiple of 128\n");
return -EINVAL;
}
/* num Tx queues */
if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
if (netif_msg_probe(ugeth))
pr_err("number of tx queues too large\n");
return -EINVAL;
}
/* num Rx queues */
if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
if (netif_msg_probe(ugeth))
pr_err("number of rx queues too large\n");
return -EINVAL;
}
/* l2qt */
for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
if (netif_msg_probe(ugeth))
pr_err("VLAN priority table entry must not be larger than number of Rx queues\n");
return -EINVAL;
}
}
/* l3qt */
for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
if (netif_msg_probe(ugeth))
pr_err("IP priority table entry must not be larger than number of Rx queues\n");
return -EINVAL;
}
}
if (ug_info->cam && !ug_info->ecamptr) {
if (netif_msg_probe(ugeth))
pr_err("If cam mode is chosen, must supply cam ptr\n");
return -EINVAL;
}
if ((ug_info->numStationAddresses !=
UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
ug_info->rxExtendedFiltering) {
if (netif_msg_probe(ugeth))
pr_err("Number of station addresses greater than 1 not allowed in extended parsing mode\n");
return -EINVAL;
}
/* Generate uccm_mask for receive */
uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
for (i = 0; i < ug_info->numQueuesRx; i++)
uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
for (i = 0; i < ug_info->numQueuesTx; i++)
uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
/* Initialize the general fast UCC block. */
if (ucc_fast_init(uf_info, &ugeth->uccf)) {
if (netif_msg_probe(ugeth))
pr_err("Failed to init uccf\n");
return -ENOMEM;
}
/* read the number of risc engines, update the riscTx and riscRx
* if there are 4 riscs in QE
*/
if (qe_get_num_of_risc() == 4) {
ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
}
ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
if (!ugeth->ug_regs) {
if (netif_msg_probe(ugeth))
pr_err("Failed to ioremap regs\n");
return -ENOMEM;
}
return 0;
}
static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth)
{
struct ucc_geth_info *ug_info;
struct ucc_fast_info *uf_info;
int length;
u16 i, j;
u8 __iomem *bd;
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
/* Allocate Tx bds */
for (j = 0; j < ug_info->numQueuesTx; j++) {
/* Allocate in multiple of
UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
according to spec */
length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
/ UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
* UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
u32 align = 4;
if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
align = UCC_GETH_TX_BD_RING_ALIGNMENT;
ugeth->tx_bd_ring_offset[j] =
(u32) kmalloc((u32) (length + align), GFP_KERNEL);
if (ugeth->tx_bd_ring_offset[j] != 0)
ugeth->p_tx_bd_ring[j] =
(u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
align) & ~(align - 1));
} else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
ugeth->tx_bd_ring_offset[j] =
qe_muram_alloc(length,
UCC_GETH_TX_BD_RING_ALIGNMENT);
if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
ugeth->p_tx_bd_ring[j] =
(u8 __iomem *) qe_muram_addr(ugeth->
tx_bd_ring_offset[j]);
}
if (!ugeth->p_tx_bd_ring[j]) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate memory for Tx bd rings\n");
return -ENOMEM;
}
/* Zero unused end of bd ring, according to spec */
memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
}
/* Init Tx bds */
for (j = 0; j < ug_info->numQueuesTx; j++) {
/* Setup the skbuff rings */
ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
ugeth->ug_info->bdRingLenTx[j],
GFP_KERNEL);
if (ugeth->tx_skbuff[j] == NULL) {
if (netif_msg_ifup(ugeth))
pr_err("Could not allocate tx_skbuff\n");
return -ENOMEM;
}
for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
ugeth->tx_skbuff[j][i] = NULL;
ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
/* clear bd buffer */
out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
/* set bd status and length */
out_be32((u32 __iomem *)bd, 0);
bd += sizeof(struct qe_bd);
}
bd -= sizeof(struct qe_bd);
/* set bd status and length */
out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
}
return 0;
}
static int ucc_geth_alloc_rx(struct ucc_geth_private *ugeth)
{
struct ucc_geth_info *ug_info;
struct ucc_fast_info *uf_info;
int length;
u16 i, j;
u8 __iomem *bd;
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
/* Allocate Rx bds */
for (j = 0; j < ug_info->numQueuesRx; j++) {
length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
u32 align = 4;
if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
align = UCC_GETH_RX_BD_RING_ALIGNMENT;
ugeth->rx_bd_ring_offset[j] =
(u32) kmalloc((u32) (length + align), GFP_KERNEL);
if (ugeth->rx_bd_ring_offset[j] != 0)
ugeth->p_rx_bd_ring[j] =
(u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
align) & ~(align - 1));
} else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
ugeth->rx_bd_ring_offset[j] =
qe_muram_alloc(length,
UCC_GETH_RX_BD_RING_ALIGNMENT);
if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
ugeth->p_rx_bd_ring[j] =
(u8 __iomem *) qe_muram_addr(ugeth->
rx_bd_ring_offset[j]);
}
if (!ugeth->p_rx_bd_ring[j]) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate memory for Rx bd rings\n");
return -ENOMEM;
}
}
/* Init Rx bds */
for (j = 0; j < ug_info->numQueuesRx; j++) {
/* Setup the skbuff rings */
ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
ugeth->ug_info->bdRingLenRx[j],
GFP_KERNEL);
if (ugeth->rx_skbuff[j] == NULL) {
if (netif_msg_ifup(ugeth))
pr_err("Could not allocate rx_skbuff\n");
return -ENOMEM;
}
for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
ugeth->rx_skbuff[j][i] = NULL;
ugeth->skb_currx[j] = 0;
bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
/* set bd status and length */
out_be32((u32 __iomem *)bd, R_I);
/* clear bd buffer */
out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
bd += sizeof(struct qe_bd);
}
bd -= sizeof(struct qe_bd);
/* set bd status and length */
out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
}
return 0;
}
static int ucc_geth_startup(struct ucc_geth_private *ugeth)
{
struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
struct ucc_geth_init_pram __iomem *p_init_enet_pram;
struct ucc_fast_private *uccf;
struct ucc_geth_info *ug_info;
struct ucc_fast_info *uf_info;
struct ucc_fast __iomem *uf_regs;
struct ucc_geth __iomem *ug_regs;
int ret_val = -EINVAL;
u32 remoder = UCC_GETH_REMODER_INIT;
u32 init_enet_pram_offset, cecr_subblock, command;
u32 ifstat, i, j, size, l2qt, l3qt;
u16 temoder = UCC_GETH_TEMODER_INIT;
u16 test;
u8 function_code = 0;
u8 __iomem *endOfRing;
u8 numThreadsRxNumerical, numThreadsTxNumerical;
ugeth_vdbg("%s: IN", __func__);
uccf = ugeth->uccf;
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
uf_regs = uccf->uf_regs;
ug_regs = ugeth->ug_regs;
switch (ug_info->numThreadsRx) {
case UCC_GETH_NUM_OF_THREADS_1:
numThreadsRxNumerical = 1;
break;
case UCC_GETH_NUM_OF_THREADS_2:
numThreadsRxNumerical = 2;
break;
case UCC_GETH_NUM_OF_THREADS_4:
numThreadsRxNumerical = 4;
break;
case UCC_GETH_NUM_OF_THREADS_6:
numThreadsRxNumerical = 6;
break;
case UCC_GETH_NUM_OF_THREADS_8:
numThreadsRxNumerical = 8;
break;
default:
if (netif_msg_ifup(ugeth))
pr_err("Bad number of Rx threads value\n");
return -EINVAL;
break;
}
switch (ug_info->numThreadsTx) {
case UCC_GETH_NUM_OF_THREADS_1:
numThreadsTxNumerical = 1;
break;
case UCC_GETH_NUM_OF_THREADS_2:
numThreadsTxNumerical = 2;
break;
case UCC_GETH_NUM_OF_THREADS_4:
numThreadsTxNumerical = 4;
break;
case UCC_GETH_NUM_OF_THREADS_6:
numThreadsTxNumerical = 6;
break;
case UCC_GETH_NUM_OF_THREADS_8:
numThreadsTxNumerical = 8;
break;
default:
if (netif_msg_ifup(ugeth))
pr_err("Bad number of Tx threads value\n");
return -EINVAL;
break;
}
/* Calculate rx_extended_features */
ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
ug_info->ipAddressAlignment ||
(ug_info->numStationAddresses !=
UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
(ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
(ug_info->vlanOperationNonTagged !=
UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
init_default_reg_vals(&uf_regs->upsmr,
&ug_regs->maccfg1, &ug_regs->maccfg2);
/* Set UPSMR */
/* For more details see the hardware spec. */
init_rx_parameters(ug_info->bro,
ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
/* We're going to ignore other registers for now, */
/* except as needed to get up and running */
/* Set MACCFG1 */
/* For more details see the hardware spec. */
init_flow_control_params(ug_info->aufc,
ug_info->receiveFlowControl,
ug_info->transmitFlowControl,
ug_info->pausePeriod,
ug_info->extensionField,
&uf_regs->upsmr,
&ug_regs->uempr, &ug_regs->maccfg1);
setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
/* Set IPGIFG */
/* For more details see the hardware spec. */
ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
ug_info->nonBackToBackIfgPart2,
ug_info->
miminumInterFrameGapEnforcement,
ug_info->backToBackInterFrameGap,
&ug_regs->ipgifg);
if (ret_val != 0) {
if (netif_msg_ifup(ugeth))
pr_err("IPGIFG initialization parameter too large\n");
return ret_val;
}
/* Set HAFDUP */
/* For more details see the hardware spec. */
ret_val = init_half_duplex_params(ug_info->altBeb,
ug_info->backPressureNoBackoff,
ug_info->noBackoff,
ug_info->excessDefer,
ug_info->altBebTruncation,
ug_info->maxRetransmission,
ug_info->collisionWindow,
&ug_regs->hafdup);
if (ret_val != 0) {
if (netif_msg_ifup(ugeth))
pr_err("Half Duplex initialization parameter too large\n");
return ret_val;
}
/* Set IFSTAT */
/* For more details see the hardware spec. */
/* Read only - resets upon read */
ifstat = in_be32(&ug_regs->ifstat);
/* Clear UEMPR */
/* For more details see the hardware spec. */
out_be32(&ug_regs->uempr, 0);
/* Set UESCR */
/* For more details see the hardware spec. */
init_hw_statistics_gathering_mode((ug_info->statisticsMode &
UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
0, &uf_regs->upsmr, &ug_regs->uescr);
ret_val = ucc_geth_alloc_tx(ugeth);
if (ret_val != 0)
return ret_val;
ret_val = ucc_geth_alloc_rx(ugeth);
if (ret_val != 0)
return ret_val;
/*
* Global PRAM
*/
/* Tx global PRAM */
/* Allocate global tx parameter RAM page */
ugeth->tx_glbl_pram_offset =
qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_tx_glbl_pram\n");
return -ENOMEM;
}
ugeth->p_tx_glbl_pram =
(struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
tx_glbl_pram_offset);
/* Zero out p_tx_glbl_pram */
memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
/* Fill global PRAM */
/* TQPTR */
/* Size varies with number of Tx threads */
ugeth->thread_dat_tx_offset =
qe_muram_alloc(numThreadsTxNumerical *
sizeof(struct ucc_geth_thread_data_tx) +
32 * (numThreadsTxNumerical == 1),
UCC_GETH_THREAD_DATA_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_thread_data_tx\n");
return -ENOMEM;
}
ugeth->p_thread_data_tx =
(struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
thread_dat_tx_offset);
out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
/* vtagtable */
for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
ug_info->vtagtable[i]);
/* iphoffset */
for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
ug_info->iphoffset[i]);
/* SQPTR */
/* Size varies with number of Tx queues */
ugeth->send_q_mem_reg_offset =
qe_muram_alloc(ug_info->numQueuesTx *
sizeof(struct ucc_geth_send_queue_qd),
UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_send_q_mem_reg\n");
return -ENOMEM;
}
ugeth->p_send_q_mem_reg =
(struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
send_q_mem_reg_offset);
out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
/* Setup the table */
/* Assume BD rings are already established */
for (i = 0; i < ug_info->numQueuesTx; i++) {
endOfRing =
ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
1) * sizeof(struct qe_bd);
if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
(u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
last_bd_completed_address,
(u32) virt_to_phys(endOfRing));
} else if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_MURAM) {
out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
(u32) immrbar_virt_to_phys(ugeth->
p_tx_bd_ring[i]));
out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
last_bd_completed_address,
(u32) immrbar_virt_to_phys(endOfRing));
}
}
/* schedulerbasepointer */
if (ug_info->numQueuesTx > 1) {
/* scheduler exists only if more than 1 tx queue */
ugeth->scheduler_offset =
qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
UCC_GETH_SCHEDULER_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_scheduler\n");
return -ENOMEM;
}
ugeth->p_scheduler =
(struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
scheduler_offset);
out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
ugeth->scheduler_offset);
/* Zero out p_scheduler */
memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
/* Set values in scheduler */
out_be32(&ugeth->p_scheduler->mblinterval,
ug_info->mblinterval);
out_be16(&ugeth->p_scheduler->nortsrbytetime,
ug_info->nortsrbytetime);
out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
out_8(&ugeth->p_scheduler->strictpriorityq,
ug_info->strictpriorityq);
out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
for (i = 0; i < NUM_TX_QUEUES; i++)
out_8(&ugeth->p_scheduler->weightfactor[i],
ug_info->weightfactor[i]);
/* Set pointers to cpucount registers in scheduler */
ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
}
/* schedulerbasepointer */
/* TxRMON_PTR (statistics) */
if (ug_info->
statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
ugeth->tx_fw_statistics_pram_offset =
qe_muram_alloc(sizeof
(struct ucc_geth_tx_firmware_statistics_pram),
UCC_GETH_TX_STATISTICS_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_tx_fw_statistics_pram\n");
return -ENOMEM;
}
ugeth->p_tx_fw_statistics_pram =
(struct ucc_geth_tx_firmware_statistics_pram __iomem *)
qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
/* Zero out p_tx_fw_statistics_pram */
memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
}
/* temoder */
/* Already has speed set */
if (ug_info->numQueuesTx > 1)
temoder |= TEMODER_SCHEDULER_ENABLE;
if (ug_info->ipCheckSumGenerate)
temoder |= TEMODER_IP_CHECKSUM_GENERATE;
temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
/* Function code register value to be used later */
function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
/* Required for QE */
/* function code register */
out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
/* Rx global PRAM */
/* Allocate global rx parameter RAM page */
ugeth->rx_glbl_pram_offset =
qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_rx_glbl_pram\n");
return -ENOMEM;
}
ugeth->p_rx_glbl_pram =
(struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
rx_glbl_pram_offset);
/* Zero out p_rx_glbl_pram */
memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
/* Fill global PRAM */
/* RQPTR */
/* Size varies with number of Rx threads */
ugeth->thread_dat_rx_offset =
qe_muram_alloc(numThreadsRxNumerical *
sizeof(struct ucc_geth_thread_data_rx),
UCC_GETH_THREAD_DATA_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_thread_data_rx\n");
return -ENOMEM;
}
ugeth->p_thread_data_rx =
(struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
thread_dat_rx_offset);
out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
/* typeorlen */
out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
/* rxrmonbaseptr (statistics) */
if (ug_info->
statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
ugeth->rx_fw_statistics_pram_offset =
qe_muram_alloc(sizeof
(struct ucc_geth_rx_firmware_statistics_pram),
UCC_GETH_RX_STATISTICS_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_rx_fw_statistics_pram\n");
return -ENOMEM;
}
ugeth->p_rx_fw_statistics_pram =
(struct ucc_geth_rx_firmware_statistics_pram __iomem *)
qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
/* Zero out p_rx_fw_statistics_pram */
memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0,
sizeof(struct ucc_geth_rx_firmware_statistics_pram));
}
/* intCoalescingPtr */
/* Size varies with number of Rx queues */
ugeth->rx_irq_coalescing_tbl_offset =
qe_muram_alloc(ug_info->numQueuesRx *
sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
+ 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_rx_irq_coalescing_tbl\n");
return -ENOMEM;
}
ugeth->p_rx_irq_coalescing_tbl =
(struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
ugeth->rx_irq_coalescing_tbl_offset);
/* Fill interrupt coalescing table */
for (i = 0; i < ug_info->numQueuesRx; i++) {
out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
interruptcoalescingmaxvalue,
ug_info->interruptcoalescingmaxvalue[i]);
out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
interruptcoalescingcounter,
ug_info->interruptcoalescingmaxvalue[i]);
}
/* MRBLR */
init_max_rx_buff_len(uf_info->max_rx_buf_length,
&ugeth->p_rx_glbl_pram->mrblr);
/* MFLR */
out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
/* MINFLR */
init_min_frame_len(ug_info->minFrameLength,
&ugeth->p_rx_glbl_pram->minflr,
&ugeth->p_rx_glbl_pram->mrblr);
/* MAXD1 */
out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
/* MAXD2 */
out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
/* l2qt */
l2qt = 0;
for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
/* l3qt */
for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
l3qt = 0;
for (i = 0; i < 8; i++)
l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
}
/* vlantype */
out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
/* vlantci */
out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
/* ecamptr */
out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
/* RBDQPTR */
/* Size varies with number of Rx queues */
ugeth->rx_bd_qs_tbl_offset =
qe_muram_alloc(ug_info->numQueuesRx *
(sizeof(struct ucc_geth_rx_bd_queues_entry) +
sizeof(struct ucc_geth_rx_prefetched_bds)),
UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_rx_bd_qs_tbl\n");
return -ENOMEM;
}
ugeth->p_rx_bd_qs_tbl =
(struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
rx_bd_qs_tbl_offset);
out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
/* Zero out p_rx_bd_qs_tbl */
memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
0,
ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
sizeof(struct ucc_geth_rx_prefetched_bds)));
/* Setup the table */
/* Assume BD rings are already established */
for (i = 0; i < ug_info->numQueuesRx; i++) {
if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
(u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
} else if (ugeth->ug_info->uf_info.bd_mem_part ==
MEM_PART_MURAM) {
out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
(u32) immrbar_virt_to_phys(ugeth->
p_rx_bd_ring[i]));
}
/* rest of fields handled by QE */
}
/* remoder */
/* Already has speed set */
if (ugeth->rx_extended_features)
remoder |= REMODER_RX_EXTENDED_FEATURES;
if (ug_info->rxExtendedFiltering)
remoder |= REMODER_RX_EXTENDED_FILTERING;
if (ug_info->dynamicMaxFrameLength)
remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
if (ug_info->dynamicMinFrameLength)
remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
remoder |=
ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
remoder |=
ug_info->
vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
if (ug_info->ipCheckSumCheck)
remoder |= REMODER_IP_CHECKSUM_CHECK;
if (ug_info->ipAddressAlignment)
remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
/* Note that this function must be called */
/* ONLY AFTER p_tx_fw_statistics_pram */
/* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
init_firmware_statistics_gathering_mode((ug_info->
statisticsMode &
UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
(ug_info->statisticsMode &
UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
&ugeth->p_tx_glbl_pram->txrmonbaseptr,
ugeth->tx_fw_statistics_pram_offset,
&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
ugeth->rx_fw_statistics_pram_offset,
&ugeth->p_tx_glbl_pram->temoder,
&ugeth->p_rx_glbl_pram->remoder);
/* function code register */
out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
/* initialize extended filtering */
if (ug_info->rxExtendedFiltering) {
if (!ug_info->extendedFilteringChainPointer) {
if (netif_msg_ifup(ugeth))
pr_err("Null Extended Filtering Chain Pointer\n");
return -EINVAL;
}
/* Allocate memory for extended filtering Mode Global
Parameters */
ugeth->exf_glbl_param_offset =
qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_exf_glbl_param\n");
return -ENOMEM;
}
ugeth->p_exf_glbl_param =
(struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
exf_glbl_param_offset);
out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
ugeth->exf_glbl_param_offset);
out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
(u32) ug_info->extendedFilteringChainPointer);
} else { /* initialize 82xx style address filtering */
/* Init individual address recognition registers to disabled */
for (j = 0; j < NUM_OF_PADDRS; j++)
ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
p_82xx_addr_filt =
(struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
p_rx_glbl_pram->addressfiltering;
ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
ENET_ADDR_TYPE_GROUP);
ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
ENET_ADDR_TYPE_INDIVIDUAL);
}
/*
* Initialize UCC at QE level
*/
command = QE_INIT_TX_RX;
/* Allocate shadow InitEnet command parameter structure.
* This is needed because after the InitEnet command is executed,
* the structure in DPRAM is released, because DPRAM is a premium
* resource.
* This shadow structure keeps a copy of what was done so that the
* allocated resources can be released when the channel is freed.
*/
if (!(ugeth->p_init_enet_param_shadow =
kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate memory for p_UccInitEnetParamShadows\n");
return -ENOMEM;
}
/* Zero out *p_init_enet_param_shadow */
memset((char *)ugeth->p_init_enet_param_shadow,
0, sizeof(struct ucc_geth_init_pram));
/* Fill shadow InitEnet command parameter structure */
ugeth->p_init_enet_param_shadow->resinit1 =
ENET_INIT_PARAM_MAGIC_RES_INIT1;
ugeth->p_init_enet_param_shadow->resinit2 =
ENET_INIT_PARAM_MAGIC_RES_INIT2;
ugeth->p_init_enet_param_shadow->resinit3 =
ENET_INIT_PARAM_MAGIC_RES_INIT3;
ugeth->p_init_enet_param_shadow->resinit4 =
ENET_INIT_PARAM_MAGIC_RES_INIT4;
ugeth->p_init_enet_param_shadow->resinit5 =
ENET_INIT_PARAM_MAGIC_RES_INIT5;
ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
ugeth->rx_glbl_pram_offset | ug_info->riscRx;
if ((ug_info->largestexternallookupkeysize !=
QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
(ug_info->largestexternallookupkeysize !=
QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
(ug_info->largestexternallookupkeysize !=
QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
if (netif_msg_ifup(ugeth))
pr_err("Invalid largest External Lookup Key Size\n");
return -EINVAL;
}
ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
ug_info->largestexternallookupkeysize;
size = sizeof(struct ucc_geth_thread_rx_pram);
if (ug_info->rxExtendedFiltering) {
size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
if (ug_info->largestexternallookupkeysize ==
QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
size +=
THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
if (ug_info->largestexternallookupkeysize ==
QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
size +=
THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
}
if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
p_init_enet_param_shadow->rxthread[0]),
(u8) (numThreadsRxNumerical + 1)
/* Rx needs one extra for terminator */
, size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
ug_info->riscRx, 1)) != 0) {
if (netif_msg_ifup(ugeth))
pr_err("Can not fill p_init_enet_param_shadow\n");
return ret_val;
}
ugeth->p_init_enet_param_shadow->txglobal =
ugeth->tx_glbl_pram_offset | ug_info->riscTx;
if ((ret_val =
fill_init_enet_entries(ugeth,
&(ugeth->p_init_enet_param_shadow->
txthread[0]), numThreadsTxNumerical,
sizeof(struct ucc_geth_thread_tx_pram),
UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
ug_info->riscTx, 0)) != 0) {
if (netif_msg_ifup(ugeth))
pr_err("Can not fill p_init_enet_param_shadow\n");
return ret_val;
}
/* Load Rx bds with buffers */
for (i = 0; i < ug_info->numQueuesRx; i++) {
if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
if (netif_msg_ifup(ugeth))
pr_err("Can not fill Rx bds with buffers\n");
return ret_val;
}
}
/* Allocate InitEnet command parameter structure */
init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
if (IS_ERR_VALUE(init_enet_pram_offset)) {
if (netif_msg_ifup(ugeth))
pr_err("Can not allocate DPRAM memory for p_init_enet_pram\n");
return -ENOMEM;
}
p_init_enet_pram =
(struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
/* Copy shadow InitEnet command parameter structure into PRAM */
out_8(&p_init_enet_pram->resinit1,
ugeth->p_init_enet_param_shadow->resinit1);
out_8(&p_init_enet_pram->resinit2,
ugeth->p_init_enet_param_shadow->resinit2);
out_8(&p_init_enet_pram->resinit3,
ugeth->p_init_enet_param_shadow->resinit3);
out_8(&p_init_enet_pram->resinit4,
ugeth->p_init_enet_param_shadow->resinit4);
out_be16(&p_init_enet_pram->resinit5,
ugeth->p_init_enet_param_shadow->resinit5);
out_8(&p_init_enet_pram->largestexternallookupkeysize,
ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
out_be32(&p_init_enet_pram->rgftgfrxglobal,
ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
out_be32(&p_init_enet_pram->rxthread[i],
ugeth->p_init_enet_param_shadow->rxthread[i]);
out_be32(&p_init_enet_pram->txglobal,
ugeth->p_init_enet_param_shadow->txglobal);
for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
out_be32(&p_init_enet_pram->txthread[i],
ugeth->p_init_enet_param_shadow->txthread[i]);
/* Issue QE command */
cecr_subblock =
ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
init_enet_pram_offset);
/* Free InitEnet command parameter */
qe_muram_free(init_enet_pram_offset);
return 0;
}
/* This is called by the kernel when a frame is ready for transmission. */
/* It is pointed to by the dev->hard_start_xmit function pointer */
static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
#ifdef CONFIG_UGETH_TX_ON_DEMAND
struct ucc_fast_private *uccf;
#endif
u8 __iomem *bd; /* BD pointer */
u32 bd_status;
u8 txQ = 0;
unsigned long flags;
ugeth_vdbg("%s: IN", __func__);
spin_lock_irqsave(&ugeth->lock, flags);
dev->stats.tx_bytes += skb->len;
/* Start from the next BD that should be filled */
bd = ugeth->txBd[txQ];
bd_status = in_be32((u32 __iomem *)bd);
/* Save the skb pointer so we can free it later */
ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
/* Update the current skb pointer (wrapping if this was the last) */
ugeth->skb_curtx[txQ] =
(ugeth->skb_curtx[txQ] +
1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
/* set up the buffer descriptor */
out_be32(&((struct qe_bd __iomem *)bd)->buf,
dma_map_single(ugeth->dev, skb->data,
skb->len, DMA_TO_DEVICE));
/* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
/* set bd status and length */
out_be32((u32 __iomem *)bd, bd_status);
/* Move to next BD in the ring */
if (!(bd_status & T_W))
bd += sizeof(struct qe_bd);
else
bd = ugeth->p_tx_bd_ring[txQ];
/* If the next BD still needs to be cleaned up, then the bds
are full. We need to tell the kernel to stop sending us stuff. */
if (bd == ugeth->confBd[txQ]) {
if (!netif_queue_stopped(dev))
netif_stop_queue(dev);
}
ugeth->txBd[txQ] = bd;
skb_tx_timestamp(skb);
if (ugeth->p_scheduler) {
ugeth->cpucount[txQ]++;
/* Indicate to QE that there are more Tx bds ready for
transmission */
/* This is done by writing a running counter of the bd
count to the scheduler PRAM. */
out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
}
#ifdef CONFIG_UGETH_TX_ON_DEMAND
uccf = ugeth->uccf;
out_be16(uccf->p_utodr, UCC_FAST_TOD);
#endif
spin_unlock_irqrestore(&ugeth->lock, flags);
return NETDEV_TX_OK;
}
static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
{
struct sk_buff *skb;
u8 __iomem *bd;
u16 length, howmany = 0;
u32 bd_status;
u8 *bdBuffer;
struct net_device *dev;
ugeth_vdbg("%s: IN", __func__);
dev = ugeth->ndev;
/* collect received buffers */
bd = ugeth->rxBd[rxQ];
bd_status = in_be32((u32 __iomem *)bd);
/* while there are received buffers and BD is full (~R_E) */
while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
/* determine whether buffer is first, last, first and last
(single buffer frame) or middle (not first and not last) */
if (!skb ||
(!(bd_status & (R_F | R_L))) ||
(bd_status & R_ERRORS_FATAL)) {
if (netif_msg_rx_err(ugeth))
pr_err("%d: ERROR!!! skb - 0x%08x\n",
__LINE__, (u32)skb);
dev_kfree_skb(skb);
ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
dev->stats.rx_dropped++;
} else {
dev->stats.rx_packets++;
howmany++;
/* Prep the skb for the packet */
skb_put(skb, length);
/* Tell the skb what kind of packet this is */
skb->protocol = eth_type_trans(skb, ugeth->ndev);
dev->stats.rx_bytes += length;
/* Send the packet up the stack */
netif_receive_skb(skb);
}
skb = get_new_skb(ugeth, bd);
if (!skb) {
if (netif_msg_rx_err(ugeth))
pr_warn("No Rx Data Buffer\n");
dev->stats.rx_dropped++;
break;
}
ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
/* update to point at the next skb */
ugeth->skb_currx[rxQ] =
(ugeth->skb_currx[rxQ] +
1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
if (bd_status & R_W)
bd = ugeth->p_rx_bd_ring[rxQ];
else
bd += sizeof(struct qe_bd);
bd_status = in_be32((u32 __iomem *)bd);
}
ugeth->rxBd[rxQ] = bd;
return howmany;
}
static int ucc_geth_tx(struct net_device *dev, u8 txQ)
{
/* Start from the next BD that should be filled */
struct ucc_geth_private *ugeth = netdev_priv(dev);
u8 __iomem *bd; /* BD pointer */
u32 bd_status;
bd = ugeth->confBd[txQ];
bd_status = in_be32((u32 __iomem *)bd);
/* Normal processing. */
while ((bd_status & T_R) == 0) {
struct sk_buff *skb;
/* BD contains already transmitted buffer. */
/* Handle the transmitted buffer and release */
/* the BD to be used with the current frame */
skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
if (!skb)
break;
dev->stats.tx_packets++;
dev_kfree_skb(skb);
ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
ugeth->skb_dirtytx[txQ] =
(ugeth->skb_dirtytx[txQ] +
1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
/* We freed a buffer, so now we can restart transmission */
if (netif_queue_stopped(dev))
netif_wake_queue(dev);
/* Advance the confirmation BD pointer */
if (!(bd_status & T_W))
bd += sizeof(struct qe_bd);
else
bd = ugeth->p_tx_bd_ring[txQ];
bd_status = in_be32((u32 __iomem *)bd);
}
ugeth->confBd[txQ] = bd;
return 0;
}
static int ucc_geth_poll(struct napi_struct *napi, int budget)
{
struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
struct ucc_geth_info *ug_info;
int howmany, i;
ug_info = ugeth->ug_info;
/* Tx event processing */
spin_lock(&ugeth->lock);
for (i = 0; i < ug_info->numQueuesTx; i++)
ucc_geth_tx(ugeth->ndev, i);
spin_unlock(&ugeth->lock);
howmany = 0;
for (i = 0; i < ug_info->numQueuesRx; i++)
howmany += ucc_geth_rx(ugeth, i, budget - howmany);
if (howmany < budget) {
napi_complete(napi);
setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
}
return howmany;
}
static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
{
struct net_device *dev = info;
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct ucc_fast_private *uccf;
struct ucc_geth_info *ug_info;
register u32 ucce;
register u32 uccm;
ugeth_vdbg("%s: IN", __func__);
uccf = ugeth->uccf;
ug_info = ugeth->ug_info;
/* read and clear events */
ucce = (u32) in_be32(uccf->p_ucce);
uccm = (u32) in_be32(uccf->p_uccm);
ucce &= uccm;
out_be32(uccf->p_ucce, ucce);
/* check for receive events that require processing */
if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
if (napi_schedule_prep(&ugeth->napi)) {
uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
out_be32(uccf->p_uccm, uccm);
__napi_schedule(&ugeth->napi);
}
}
/* Errors and other events */
if (ucce & UCCE_OTHER) {
if (ucce & UCC_GETH_UCCE_BSY)
dev->stats.rx_errors++;
if (ucce & UCC_GETH_UCCE_TXE)
dev->stats.tx_errors++;
}
return IRQ_HANDLED;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
/*
* Polling 'interrupt' - used by things like netconsole to send skbs
* without having to re-enable interrupts. It's not called while
* the interrupt routine is executing.
*/
static void ucc_netpoll(struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
int irq = ugeth->ug_info->uf_info.irq;
disable_irq(irq);
ucc_geth_irq_handler(irq, dev);
enable_irq(irq);
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct sockaddr *addr = p;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
/*
* If device is not running, we will set mac addr register
* when opening the device.
*/
if (!netif_running(dev))
return 0;
spin_lock_irq(&ugeth->lock);
init_mac_station_addr_regs(dev->dev_addr[0],
dev->dev_addr[1],
dev->dev_addr[2],
dev->dev_addr[3],
dev->dev_addr[4],
dev->dev_addr[5],
&ugeth->ug_regs->macstnaddr1,
&ugeth->ug_regs->macstnaddr2);
spin_unlock_irq(&ugeth->lock);
return 0;
}
static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
{
struct net_device *dev = ugeth->ndev;
int err;
err = ucc_struct_init(ugeth);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot configure internal struct, aborting\n");
goto err;
}
err = ucc_geth_startup(ugeth);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
goto err;
}
err = adjust_enet_interface(ugeth);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
goto err;
}
/* Set MACSTNADDR1, MACSTNADDR2 */
/* For more details see the hardware spec. */
init_mac_station_addr_regs(dev->dev_addr[0],
dev->dev_addr[1],
dev->dev_addr[2],
dev->dev_addr[3],
dev->dev_addr[4],
dev->dev_addr[5],
&ugeth->ug_regs->macstnaddr1,
&ugeth->ug_regs->macstnaddr2);
err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot enable net device, aborting\n");
goto err;
}
return 0;
err:
ucc_geth_stop(ugeth);
return err;
}
/* Called when something needs to use the ethernet device */
/* Returns 0 for success. */
static int ucc_geth_open(struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
int err;
ugeth_vdbg("%s: IN", __func__);
/* Test station address */
if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
netif_err(ugeth, ifup, dev,
"Multicast address used for station address - is this what you wanted?\n");
return -EINVAL;
}
err = init_phy(dev);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot initialize PHY, aborting\n");
return err;
}
err = ucc_geth_init_mac(ugeth);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot initialize MAC, aborting\n");
goto err;
}
err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
0, "UCC Geth", dev);
if (err) {
netif_err(ugeth, ifup, dev, "Cannot get IRQ for net device, aborting\n");
goto err;
}
phy_start(ugeth->phydev);
napi_enable(&ugeth->napi);
netif_start_queue(dev);
device_set_wakeup_capable(&dev->dev,
qe_alive_during_sleep() || ugeth->phydev->irq);
device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
return err;
err:
ucc_geth_stop(ugeth);
return err;
}
/* Stops the kernel queue, and halts the controller */
static int ucc_geth_close(struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
ugeth_vdbg("%s: IN", __func__);
napi_disable(&ugeth->napi);
cancel_work_sync(&ugeth->timeout_work);
ucc_geth_stop(ugeth);
phy_disconnect(ugeth->phydev);
ugeth->phydev = NULL;
free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
netif_stop_queue(dev);
return 0;
}
/* Reopen device. This will reset the MAC and PHY. */
static void ucc_geth_timeout_work(struct work_struct *work)
{
struct ucc_geth_private *ugeth;
struct net_device *dev;
ugeth = container_of(work, struct ucc_geth_private, timeout_work);
dev = ugeth->ndev;
ugeth_vdbg("%s: IN", __func__);
dev->stats.tx_errors++;
ugeth_dump_regs(ugeth);
if (dev->flags & IFF_UP) {
/*
* Must reset MAC *and* PHY. This is done by reopening
* the device.
*/
netif_tx_stop_all_queues(dev);
ucc_geth_stop(ugeth);
ucc_geth_init_mac(ugeth);
/* Must start PHY here */
phy_start(ugeth->phydev);
netif_tx_start_all_queues(dev);
}
netif_tx_schedule_all(dev);
}
/*
* ucc_geth_timeout gets called when a packet has not been
* transmitted after a set amount of time.
*/
static void ucc_geth_timeout(struct net_device *dev)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
schedule_work(&ugeth->timeout_work);
}
#ifdef CONFIG_PM
static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
{
struct net_device *ndev = platform_get_drvdata(ofdev);
struct ucc_geth_private *ugeth = netdev_priv(ndev);
if (!netif_running(ndev))
return 0;
netif_device_detach(ndev);
napi_disable(&ugeth->napi);
/*
* Disable the controller, otherwise we'll wakeup on any network
* activity.
*/
ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
if (ugeth->wol_en & WAKE_MAGIC) {
setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
} else if (!(ugeth->wol_en & WAKE_PHY)) {
phy_stop(ugeth->phydev);
}
return 0;
}
static int ucc_geth_resume(struct platform_device *ofdev)
{
struct net_device *ndev = platform_get_drvdata(ofdev);
struct ucc_geth_private *ugeth = netdev_priv(ndev);
int err;
if (!netif_running(ndev))
return 0;
if (qe_alive_during_sleep()) {
if (ugeth->wol_en & WAKE_MAGIC) {
ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
}
ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
} else {
/*
* Full reinitialization is required if QE shuts down
* during sleep.
*/
ucc_geth_memclean(ugeth);
err = ucc_geth_init_mac(ugeth);
if (err) {
netdev_err(ndev, "Cannot initialize MAC, aborting\n");
return err;
}
}
ugeth->oldlink = 0;
ugeth->oldspeed = 0;
ugeth->oldduplex = -1;
phy_stop(ugeth->phydev);
phy_start(ugeth->phydev);
napi_enable(&ugeth->napi);
netif_device_attach(ndev);
return 0;
}
#else
#define ucc_geth_suspend NULL
#define ucc_geth_resume NULL
#endif
static phy_interface_t to_phy_interface(const char *phy_connection_type)
{
if (strcasecmp(phy_connection_type, "mii") == 0)
return PHY_INTERFACE_MODE_MII;
if (strcasecmp(phy_connection_type, "gmii") == 0)
return PHY_INTERFACE_MODE_GMII;
if (strcasecmp(phy_connection_type, "tbi") == 0)
return PHY_INTERFACE_MODE_TBI;
if (strcasecmp(phy_connection_type, "rmii") == 0)
return PHY_INTERFACE_MODE_RMII;
if (strcasecmp(phy_connection_type, "rgmii") == 0)
return PHY_INTERFACE_MODE_RGMII;
if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
return PHY_INTERFACE_MODE_RGMII_ID;
if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
return PHY_INTERFACE_MODE_RGMII_TXID;
if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
return PHY_INTERFACE_MODE_RGMII_RXID;
if (strcasecmp(phy_connection_type, "rtbi") == 0)
return PHY_INTERFACE_MODE_RTBI;
if (strcasecmp(phy_connection_type, "sgmii") == 0)
return PHY_INTERFACE_MODE_SGMII;
return PHY_INTERFACE_MODE_MII;
}
static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct ucc_geth_private *ugeth = netdev_priv(dev);
if (!netif_running(dev))
return -EINVAL;
if (!ugeth->phydev)
return -ENODEV;
return phy_mii_ioctl(ugeth->phydev, rq, cmd);
}
static const struct net_device_ops ucc_geth_netdev_ops = {
.ndo_open = ucc_geth_open,
.ndo_stop = ucc_geth_close,
.ndo_start_xmit = ucc_geth_start_xmit,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = ucc_geth_set_mac_addr,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_rx_mode = ucc_geth_set_multi,
.ndo_tx_timeout = ucc_geth_timeout,
.ndo_do_ioctl = ucc_geth_ioctl,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ucc_netpoll,
#endif
};
static int ucc_geth_probe(struct platform_device* ofdev)
{
struct device *device = &ofdev->dev;
struct device_node *np = ofdev->dev.of_node;
struct net_device *dev = NULL;
struct ucc_geth_private *ugeth = NULL;
struct ucc_geth_info *ug_info;
struct resource res;
int err, ucc_num, max_speed = 0;
const unsigned int *prop;
const char *sprop;
const void *mac_addr;
phy_interface_t phy_interface;
static const int enet_to_speed[] = {
SPEED_10, SPEED_10, SPEED_10,
SPEED_100, SPEED_100, SPEED_100,
SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
};
static const phy_interface_t enet_to_phy_interface[] = {
PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
PHY_INTERFACE_MODE_SGMII,
};
ugeth_vdbg("%s: IN", __func__);
prop = of_get_property(np, "cell-index", NULL);
if (!prop) {
prop = of_get_property(np, "device-id", NULL);
if (!prop)
return -ENODEV;
}
ucc_num = *prop - 1;
if ((ucc_num < 0) || (ucc_num > 7))
return -ENODEV;
ug_info = &ugeth_info[ucc_num];
if (ug_info == NULL) {
if (netif_msg_probe(&debug))
pr_err("[%d] Missing additional data!\n", ucc_num);
return -ENODEV;
}
ug_info->uf_info.ucc_num = ucc_num;
sprop = of_get_property(np, "rx-clock-name", NULL);
if (sprop) {
ug_info->uf_info.rx_clock = qe_clock_source(sprop);
if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
(ug_info->uf_info.rx_clock > QE_CLK24)) {
pr_err("invalid rx-clock-name property\n");
return -EINVAL;
}
} else {
prop = of_get_property(np, "rx-clock", NULL);
if (!prop) {
/* If both rx-clock-name and rx-clock are missing,
we want to tell people to use rx-clock-name. */
pr_err("missing rx-clock-name property\n");
return -EINVAL;
}
if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
pr_err("invalid rx-clock propperty\n");
return -EINVAL;
}
ug_info->uf_info.rx_clock = *prop;
}
sprop = of_get_property(np, "tx-clock-name", NULL);
if (sprop) {
ug_info->uf_info.tx_clock = qe_clock_source(sprop);
if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
(ug_info->uf_info.tx_clock > QE_CLK24)) {
pr_err("invalid tx-clock-name property\n");
return -EINVAL;
}
} else {
prop = of_get_property(np, "tx-clock", NULL);
if (!prop) {
pr_err("missing tx-clock-name property\n");
return -EINVAL;
}
if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
pr_err("invalid tx-clock property\n");
return -EINVAL;
}
ug_info->uf_info.tx_clock = *prop;
}
err = of_address_to_resource(np, 0, &res);
if (err)
return -EINVAL;
ug_info->uf_info.regs = res.start;
ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
/* Find the TBI PHY node. If it's not there, we don't support SGMII */
ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
/* get the phy interface type, or default to MII */
prop = of_get_property(np, "phy-connection-type", NULL);
if (!prop) {
/* handle interface property present in old trees */
prop = of_get_property(ug_info->phy_node, "interface", NULL);
if (prop != NULL) {
phy_interface = enet_to_phy_interface[*prop];
max_speed = enet_to_speed[*prop];
} else
phy_interface = PHY_INTERFACE_MODE_MII;
} else {
phy_interface = to_phy_interface((const char *)prop);
}
/* get speed, or derive from PHY interface */
if (max_speed == 0)
switch (phy_interface) {
case PHY_INTERFACE_MODE_GMII:
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
case PHY_INTERFACE_MODE_TBI:
case PHY_INTERFACE_MODE_RTBI:
case PHY_INTERFACE_MODE_SGMII:
max_speed = SPEED_1000;
break;
default:
max_speed = SPEED_100;
break;
}
if (max_speed == SPEED_1000) {
unsigned int snums = qe_get_num_of_snums();
/* configure muram FIFOs for gigabit operation */
ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
/* If QE's snum number is 46/76 which means we need to support
* 4 UECs at 1000Base-T simultaneously, we need to allocate
* more Threads to Rx.
*/
if ((snums == 76) || (snums == 46))
ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
else
ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
}
if (netif_msg_probe(&debug))
pr_info("UCC%1d at 0x%8x (irq = %d)\n",
ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
ug_info->uf_info.irq);
/* Create an ethernet device instance */
dev = alloc_etherdev(sizeof(*ugeth));
if (dev == NULL)
return -ENOMEM;
ugeth = netdev_priv(dev);
spin_lock_init(&ugeth->lock);
/* Create CQs for hash tables */
INIT_LIST_HEAD(&ugeth->group_hash_q);
INIT_LIST_HEAD(&ugeth->ind_hash_q);
dev_set_drvdata(device, dev);
/* Set the dev->base_addr to the gfar reg region */
dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
SET_NETDEV_DEV(dev, device);
/* Fill in the dev structure */
uec_set_ethtool_ops(dev);
dev->netdev_ops = &ucc_geth_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
dev->mtu = 1500;
ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
ugeth->phy_interface = phy_interface;
ugeth->max_speed = max_speed;
err = register_netdev(dev);
if (err) {
if (netif_msg_probe(ugeth))
pr_err("%s: Cannot register net device, aborting\n",
dev->name);
free_netdev(dev);
return err;
}
mac_addr = of_get_mac_address(np);
if (mac_addr)
memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
ugeth->ug_info = ug_info;
ugeth->dev = device;
ugeth->ndev = dev;
ugeth->node = np;
return 0;
}
static int ucc_geth_remove(struct platform_device* ofdev)
{
struct net_device *dev = platform_get_drvdata(ofdev);
struct ucc_geth_private *ugeth = netdev_priv(dev);
unregister_netdev(dev);
free_netdev(dev);
ucc_geth_memclean(ugeth);
return 0;
}
static struct of_device_id ucc_geth_match[] = {
{
.type = "network",
.compatible = "ucc_geth",
},
{},
};
MODULE_DEVICE_TABLE(of, ucc_geth_match);
static struct platform_driver ucc_geth_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.of_match_table = ucc_geth_match,
},
.probe = ucc_geth_probe,
.remove = ucc_geth_remove,
.suspend = ucc_geth_suspend,
.resume = ucc_geth_resume,
};
static int __init ucc_geth_init(void)
{
int i, ret;
if (netif_msg_drv(&debug))
pr_info(DRV_DESC "\n");
for (i = 0; i < 8; i++)
memcpy(&(ugeth_info[i]), &ugeth_primary_info,
sizeof(ugeth_primary_info));
ret = platform_driver_register(&ucc_geth_driver);
return ret;
}
static void __exit ucc_geth_exit(void)
{
platform_driver_unregister(&ucc_geth_driver);
}
module_init(ucc_geth_init);
module_exit(ucc_geth_exit);
MODULE_AUTHOR("Freescale Semiconductor, Inc");
MODULE_DESCRIPTION(DRV_DESC);
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");
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