kernel-ark/drivers/net/ucc_geth_ethtool.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

425 lines
11 KiB
C

/*
* Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved.
*
* Description: QE UCC Gigabit Ethernet Ethtool API Set
*
* Author: Li Yang <leoli@freescale.com>
*
* Limitation:
* Can only get/set setttings of the first queue.
* Need to re-open the interface manually after changing some parameters.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/stddef.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/delay.h>
#include <linux/dma-mapping.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/types.h>
#include "ucc_geth.h"
static char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
"tx-64-frames",
"tx-65-127-frames",
"tx-128-255-frames",
"rx-64-frames",
"rx-65-127-frames",
"rx-128-255-frames",
"tx-bytes-ok",
"tx-pause-frames",
"tx-multicast-frames",
"tx-broadcast-frames",
"rx-frames",
"rx-bytes-ok",
"rx-bytes-all",
"rx-multicast-frames",
"rx-broadcast-frames",
"stats-counter-carry",
"stats-counter-mask",
"rx-dropped-frames",
};
static char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
"tx-single-collision",
"tx-multiple-collision",
"tx-late-collsion",
"tx-aborted-frames",
"tx-lost-frames",
"tx-carrier-sense-errors",
"tx-frames-ok",
"tx-excessive-differ-frames",
"tx-256-511-frames",
"tx-512-1023-frames",
"tx-1024-1518-frames",
"tx-jumbo-frames",
};
static char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
"rx-crc-errors",
"rx-alignment-errors",
"rx-in-range-length-errors",
"rx-out-of-range-length-errors",
"rx-too-long-frames",
"rx-runt",
"rx-very-long-event",
"rx-symbol-errors",
"rx-busy-drop-frames",
"reserved",
"reserved",
"rx-mismatch-drop-frames",
"rx-small-than-64",
"rx-256-511-frames",
"rx-512-1023-frames",
"rx-1024-1518-frames",
"rx-jumbo-frames",
"rx-mac-error-loss",
"rx-pause-frames",
"reserved",
"rx-vlan-removed",
"rx-vlan-replaced",
"rx-vlan-inserted",
"rx-ip-checksum-errors",
};
#define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings)
#define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings)
#define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings)
static int
uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
struct phy_device *phydev = ugeth->phydev;
struct ucc_geth_info *ug_info = ugeth->ug_info;
if (!phydev)
return -ENODEV;
ecmd->maxtxpkt = 1;
ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0];
return phy_ethtool_gset(phydev, ecmd);
}
static int
uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
struct phy_device *phydev = ugeth->phydev;
if (!phydev)
return -ENODEV;
return phy_ethtool_sset(phydev, ecmd);
}
static void
uec_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
pause->autoneg = ugeth->phydev->autoneg;
if (ugeth->ug_info->receiveFlowControl)
pause->rx_pause = 1;
if (ugeth->ug_info->transmitFlowControl)
pause->tx_pause = 1;
}
static int
uec_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
int ret = 0;
ugeth->ug_info->receiveFlowControl = pause->rx_pause;
ugeth->ug_info->transmitFlowControl = pause->tx_pause;
if (ugeth->phydev->autoneg) {
if (netif_running(netdev)) {
/* FIXME: automatically restart */
printk(KERN_INFO
"Please re-open the interface.\n");
}
} else {
struct ucc_geth_info *ug_info = ugeth->ug_info;
ret = init_flow_control_params(ug_info->aufc,
ug_info->receiveFlowControl,
ug_info->transmitFlowControl,
ug_info->pausePeriod,
ug_info->extensionField,
&ugeth->uccf->uf_regs->upsmr,
&ugeth->ug_regs->uempr,
&ugeth->ug_regs->maccfg1);
}
return ret;
}
static uint32_t
uec_get_msglevel(struct net_device *netdev)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
return ugeth->msg_enable;
}
static void
uec_set_msglevel(struct net_device *netdev, uint32_t data)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
ugeth->msg_enable = data;
}
static int
uec_get_regs_len(struct net_device *netdev)
{
return sizeof(struct ucc_geth);
}
static void
uec_get_regs(struct net_device *netdev,
struct ethtool_regs *regs, void *p)
{
int i;
struct ucc_geth_private *ugeth = netdev_priv(netdev);
u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
u32 *buff = p;
for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
buff[i] = in_be32(&ug_regs[i]);
}
static void
uec_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
struct ucc_geth_info *ug_info = ugeth->ug_info;
int queue = 0;
ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
ring->rx_pending = ug_info->bdRingLenRx[queue];
ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
ring->tx_pending = ug_info->bdRingLenTx[queue];
}
static int
uec_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
struct ucc_geth_info *ug_info = ugeth->ug_info;
int queue = 0, ret = 0;
if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
printk("%s: RxBD ring size must be no smaller than %d.\n",
netdev->name, UCC_GETH_RX_BD_RING_SIZE_MIN);
return -EINVAL;
}
if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
printk("%s: RxBD ring size must be multiple of %d.\n",
netdev->name, UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
return -EINVAL;
}
if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
printk("%s: TxBD ring size must be no smaller than %d.\n",
netdev->name, UCC_GETH_TX_BD_RING_SIZE_MIN);
return -EINVAL;
}
ug_info->bdRingLenRx[queue] = ring->rx_pending;
ug_info->bdRingLenTx[queue] = ring->tx_pending;
if (netif_running(netdev)) {
/* FIXME: restart automatically */
printk(KERN_INFO
"Please re-open the interface.\n");
}
return ret;
}
static int uec_get_sset_count(struct net_device *netdev, int sset)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
u32 stats_mode = ugeth->ug_info->statisticsMode;
int len = 0;
switch (sset) {
case ETH_SS_STATS:
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
len += UEC_HW_STATS_LEN;
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
len += UEC_TX_FW_STATS_LEN;
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
len += UEC_RX_FW_STATS_LEN;
return len;
default:
return -EOPNOTSUPP;
}
}
static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
u32 stats_mode = ugeth->ug_info->statisticsMode;
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
ETH_GSTRING_LEN);
buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
}
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
ETH_GSTRING_LEN);
buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
}
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
ETH_GSTRING_LEN);
}
static void uec_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, uint64_t *data)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
u32 stats_mode = ugeth->ug_info->statisticsMode;
u32 __iomem *base;
int i, j = 0;
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
if (ugeth->ug_regs)
base = (u32 __iomem *)&ugeth->ug_regs->tx64;
else
base = NULL;
for (i = 0; i < UEC_HW_STATS_LEN; i++)
data[j++] = base ? in_be32(&base[i]) : 0;
}
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram;
for (i = 0; i < UEC_TX_FW_STATS_LEN; i++)
data[j++] = base ? in_be32(&base[i]) : 0;
}
if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram;
for (i = 0; i < UEC_RX_FW_STATS_LEN; i++)
data[j++] = base ? in_be32(&base[i]) : 0;
}
}
static int uec_nway_reset(struct net_device *netdev)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
return phy_start_aneg(ugeth->phydev);
}
/* Report driver information */
static void
uec_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
strncpy(drvinfo->driver, DRV_NAME, 32);
strncpy(drvinfo->version, DRV_VERSION, 32);
strncpy(drvinfo->fw_version, "N/A", 32);
strncpy(drvinfo->bus_info, "QUICC ENGINE", 32);
drvinfo->eedump_len = 0;
drvinfo->regdump_len = uec_get_regs_len(netdev);
}
#ifdef CONFIG_PM
static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
struct phy_device *phydev = ugeth->phydev;
if (phydev && phydev->irq)
wol->supported |= WAKE_PHY;
if (qe_alive_during_sleep())
wol->supported |= WAKE_MAGIC;
wol->wolopts = ugeth->wol_en;
}
static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
struct ucc_geth_private *ugeth = netdev_priv(netdev);
struct phy_device *phydev = ugeth->phydev;
if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
return -EINVAL;
else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq))
return -EINVAL;
else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep())
return -EINVAL;
ugeth->wol_en = wol->wolopts;
device_set_wakeup_enable(&netdev->dev, ugeth->wol_en);
return 0;
}
#else
#define uec_get_wol NULL
#define uec_set_wol NULL
#endif /* CONFIG_PM */
static const struct ethtool_ops uec_ethtool_ops = {
.get_settings = uec_get_settings,
.set_settings = uec_set_settings,
.get_drvinfo = uec_get_drvinfo,
.get_regs_len = uec_get_regs_len,
.get_regs = uec_get_regs,
.get_msglevel = uec_get_msglevel,
.set_msglevel = uec_set_msglevel,
.nway_reset = uec_nway_reset,
.get_link = ethtool_op_get_link,
.get_ringparam = uec_get_ringparam,
.set_ringparam = uec_set_ringparam,
.get_pauseparam = uec_get_pauseparam,
.set_pauseparam = uec_set_pauseparam,
.set_sg = ethtool_op_set_sg,
.get_sset_count = uec_get_sset_count,
.get_strings = uec_get_strings,
.get_ethtool_stats = uec_get_ethtool_stats,
.get_wol = uec_get_wol,
.set_wol = uec_set_wol,
};
void uec_set_ethtool_ops(struct net_device *netdev)
{
SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops);
}