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path: root/drivers/net/fec.c
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2010-07-22net/fec: restore interrupt mask after software-reset in fec_stop()Wolfram Sang1-3/+4
After the change from mdio polling to irq, it became necessary to restore the interrupt mask after resetting the chip in fec_stop(). Otherwise, with all irqs disabled, no communication with the PHY will be possible after e.g. un-/replugging the cable and the device gets stalled. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-18net: preserve ifreq parameter when calling generic phy_mii_ioctl().Richard Cochran1-1/+1
The phy_mii_ioctl() function unnecessarily throws away the original ifreq. We need access to the ifreq in order to support PHYs that can perform hardware time stamping. Two maverick drivers filter the ioctl commands passed to phy_mii_ioctl(). This is unnecessary since phylib will check the command in any case. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-12fec: use interrupt for MDIO completion indicationBaruch Siach1-30/+25
With the move to phylib (commit e6b043d) I was seeing sporadic "MDIO write timeout" messages. Measure of the actual time spent showed latency times of more than 1600us. This patch uses the MII event indication of the FEC hardware to detect completion of MDIO transactions. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25net/fec: clean suspend/resumeEric Benard1-18/+12
Commit 59d4289b83b11379d867e2f7146904b19cc96404 converted fec to dev_pm_ops but didn't update the suspend/resume functions thus leading to the following warning : "initialization from incompatible pointer type" when CONFIG_PM is set. This patch also fixe a few indentation and style around CONFIG_PM area. Signed-off-by: Eric Bénard <eric@eukrea.com> Cc: netdev@vger.kernel.org Cc: davem@davemloft.net Cc: amit.kucheria@canonical.com Cc: s.hauer@pengutronix.de Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-06Merge branch 'master' of ↵David S. Miller1-8/+8
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/sfc/net_driver.h drivers/net/sfc/siena.c
2010-06-05fec: convert legacy PM hooks to dem_pm_opsDenis Kirjanov1-2/+20
This patch compile tested only. Convert legacy PM hooks to dev_pm_ops Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03fec: Cleanup PHY probingDenis Kirjanov1-11/+5
Cleanup PHY probing: use helpers from phylib Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03fec: convert TX hook to netdev_tx_tDenis Kirjanov1-1/+1
Convert TX hook return value to netdev_tx_t Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02net/fec: fix pm to survive to suspend/resumeEric Bénard1-8/+8
* in the actual driver, calling fec_stop and fec_enet_init doesn't allow to have a working network interface at resume (where a ifconfig down and up is required to recover the interface) * by using fec_enet_close and fec_enet_open, this patch solves this problem and handle the case where the link changed between suspend and resume * this patch also disable clock at suspend and reenable it at resume Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-28netdev/fec: fix ifconfig eth0 down hang issueBryan Wu1-12/+16
BugLink: http://bugs.launchpad.net/bugs/559065 In fec open/close function, we need to use phy_connect and phy_disconnect operation before we start/stop phy. Otherwise it will cause system hang. Only call fec_enet_mii_probe() in open function, because the first open action will cause NULL pointer error. Signed-off-by: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-24fec: add support for PHY interface platform dataBaruch Siach1-0/+22
The i.MX25 PDK uses RMII to communicate with its PHY. This patch adds the ability to configure RMII, based on platform data. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12Merge branch 'master' of ↵David S. Miller1-1/+1
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: Documentation/feature-removal-schedule.txt drivers/net/wireless/ath/ar9170/usb.c drivers/scsi/iscsi_tcp.c net/ipv4/ipmr.c
2010-05-10net: trans_start cleanupsEric Dumazet1-2/+0
Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-05FEC: Fix kernel panic in fec_set_mac_address.Mattias Walström1-1/+1
Fix memory corruption that sometimes result in kernel panic. Signed-off-by: Mattias Walström <mattias@vmlinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-03net: convert multicast list to list_headJiri Pirko1-5/+5
Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-01netdev/fec.c: add phylib supporting to enable carrier detection (v2)Bryan Wu1-877/+251
BugLink: http://bugs.launchpad.net/bugs/457878 v2: - remove duplicated phy_speed caculation - fix the phy_speed caculation according to the DataSheet v1: - removed old MII phy control code - add phylib supporting - add ethtool interface to make user space NetworkManager works Tested on Freescale i.MX51 Babbage board. This patch is based on a patch from Frederic Rodo <fred.rodo@gmail.com> Cc: Frederic Rodo <fred.rodo@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com> Acked-by: Amit Kucheria <amit.kucheria@canonical.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-22net: convert multiple drivers to use netdev_for_each_mc_addr, part4Jiri Pirko1-4/+2
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-12net: use netdev_mc_count and netdev_mc_empty when appropriateJiri Pirko1-1/+1
This patch replaces dev->mc_count in all drivers (hopefully I didn't miss anything). Used spatch and did small tweaks and conding style changes when it was suitable. Jirka Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10fec: Add LAN8700 phy supportAmit Kucheria1-0/+21
The i.MX51 babbage board has a FEC ethernet controller with this phy. In the long term we should resurrect the phylib patches for fec. Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-10fec: fix uninitialized rx buffer usageRob Herring1-28/+29
The fec driver was enabling receive buffer descriptor without allocating the buffers. Make sure the buffer descriptors are initialized to not start receiving packets. Open also calls fec_restart after the rx buffers are allocated. With the code in fec_restart, it zeroes out the buffer descriptors that have just been setup. Signed-off-by: Rob Herring <r.herring@freescale.com> Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-20net: fix section mismatch in fec.cSteven King1-1/+1
fec_enet_init is called by both fec_probe and fec_resume, so it shouldn't be marked as __init. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-17Merge branch 'for-linus' of ↵Linus Torvalds1-15/+3
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (53 commits) m68knommu: Make PAGE_SIZE available to assembly files. m68knommu: fix ColdFire definition of CLOCK_TICK_RATE m68knommu: set multi-function pins for ethernet when enabled m68knommu: remove special interrupt handling code for ne2k support m68knommu: relax IO_SPACE_LIMIT setting m68knommu: remove ColdFire direct interrupt register access m68knommu: create a speciailized ColdFire 5272 interrupt controller m68knommu: add support for second interrupt controller of ColdFire 5249 m68knommu: clean up old ColdFire timer irq setup m68knommu: map ColdFire interrupts to correct masking bits m68knommu: clean up ColdFire 532x CPU timer setup m68knommu: simplify ColdFire "timers" clock initialization m68knommu: support code to mask external interrupts on old ColdFire CPU's m68knommu: merge old ColdFire interrupt controller masking macros m68knommu: remove duplicate ColdFire mcf_autovector() code m68knommu: move ColdFire INTC definitions to new include file m68knommu: mask off all interrupts in ColdFire intc-simr controller m68knommu: remove timer device interrupt setup for ColdFire 532x m68knommu: remove interrupt masking from ColdFire pit timer m68knommu: remove unecessary interrupt level setting in ColdFire 520x setup ...
2009-09-16m68knommu: remove ColdFire direct interrupt register accessGreg Ungerer1-15/+3
Now that the ColdFire 5272 has full interrupt controller functionality we can remove all the interrupt masking and acking code from the FEC ethernet driver. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-09-02fec: don't enable irqs in hard irq contextUwe Kleine-König1-6/+6
fec_enet_mii, fec_enet_rx and fec_enet_tx are both only called by fec_enet_interrupt in interrupt context. So they must not use spin_lock_irq/spin_unlock_irq. This fixes: WARNING: at kernel/lockdep.c:2140 trace_hardirqs_on_caller+0x130/0x194() ... Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Patrick McHardy <kaber@trash.net> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Matt Waddel <Matt.Waddel@freescale.com> Cc: netdev@vger.kernel.org Cc: Tim Sander <tim01@vlsi.informatik.tu-darmstadt.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02fec: fix recursive locking of mii_lockUwe Kleine-König1-5/+17
mii_discover_phy is only called by fec_enet_mii (via mip->mii_func). So &fep->mii_lock is already held and mii_discover_phy must not call mii_queue which locks &fep->mii_lock, too. This was noticed by lockdep: ============================================= [ INFO: possible recursive locking detected ] 2.6.31-rc8-00038-g37d0892 #109 --------------------------------------------- swapper/1 is trying to acquire lock: (&fep->mii_lock){-.....}, at: [<c01569f8>] mii_queue+0x2c/0xcc but task is already holding lock: (&fep->mii_lock){-.....}, at: [<c0156328>] fec_enet_interrupt+0x78/0x460 other info that might help us debug this: 2 locks held by swapper/1: #0: (rtnl_mutex){+.+.+.}, at: [<c0183534>] rtnl_lock+0x18/0x20 #1: (&fep->mii_lock){-.....}, at: [<c0156328>] fec_enet_interrupt+0x78/0x460 stack backtrace: Backtrace: [<c00226fc>] (dump_backtrace+0x0/0x108) from [<c01eac14>] (dump_stack+0x18/0x1c) r6:c781d118 r5:c03e41d8 r4:00000001 [<c01eabfc>] (dump_stack+0x0/0x1c) from [<c005bae4>] (__lock_acquire+0x1a20/0x1a88) [<c005a0c4>] (__lock_acquire+0x0/0x1a88) from [<c005bbac>] (lock_acquire+0x60/0x74) [<c005bb4c>] (lock_acquire+0x0/0x74) from [<c01edda8>] (_spin_lock_irqsave+0x54/0x68) r7:60000093 r6:c01569f8 r5:c785e468 r4:00000000 [<c01edd54>] (_spin_lock_irqsave+0x0/0x68) from [<c01569f8>] (mii_queue+0x2c/0xcc) r7:c785e468 r6:c0156b24 r5:600a0000 r4:c785e000 [<c01569cc>] (mii_queue+0x0/0xcc) from [<c0156b78>] (mii_discover_phy+0x54/0xa8) r8:00000002 r7:00000032 r6:c785e000 r5:c785e360 r4:c785e000 [<c0156b24>] (mii_discover_phy+0x0/0xa8) from [<c0156354>] (fec_enet_interrupt+0xa4/0x460) r5:c785e360 r4:c077a170 [<c01562b0>] (fec_enet_interrupt+0x0/0x460) from [<c0066674>] (handle_IRQ_event+0x48/0x120) [<c006662c>] (handle_IRQ_event+0x0/0x120) from [<c0068438>] (handle_level_irq+0x94/0x11c) ... Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Patrick McHardy <kaber@trash.net> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Matt Waddel <Matt.Waddel@freescale.com> Cc: netdev@vger.kernel.org Cc: Tim Sander <tim01@vlsi.informatik.tu-darmstadt.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-12Merge branch 'master' of ↵David S. Miller1-4/+5
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: arch/microblaze/include/asm/socket.h
2009-08-09fec: fix FEC driver packet transmission breakageGreg Ungerer1-4/+5
Commit f0b3fbeae11a526c3d308b691684589ee37c359b ("FEC Buffer rework") breaks transmission of packets where the skb data buffer is not memory aligned according to FEC_ALIGNMENT. It incorrectly passes to dma_sync_single() the buffer address directly from the skb, instead of the address calculated for use (which may be the skb address or one of the bounce buffers). It seems there is no use converting the cpu address of the buffer to a physical either, since dma_map_single() expects the cpu address and will return the dma address to use in the descriptor. So remove the use of __pa() on the buffer address as well. This patch is against 2.6.30-rc5. This breakage is a regression over 2.6.30, which does not have this problem. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-16Merge branch 'master' of ↵David S. Miller1-0/+1
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/orinoco/main.c
2009-07-12netdev: restore MTU change operationBen Hutchings1-0/+1
alloc_etherdev() used to install a default implementation of this operation, but it must now be explicitly installed in struct net_device_ops. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-05net: use NETDEV_TX_OK instead of 0 in ndo_start_xmit() functionsPatrick McHardy1-1/+1
This patch is the result of an automatic spatch transformation to convert all ndo_start_xmit() return values of 0 to NETDEV_TX_OK. Some occurences are missed by the automatic conversion, those will be handled in a seperate patch. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-13net: use symbolic values for ndo_start_xmit() return codesPatrick McHardy1-2/+2
Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively. 0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases where its in direct proximity to one of the other values. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16Merge branch 'master' of ↵David S. Miller1-0/+1
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-04-16fec: call fec_restart() in fec_open()Sascha Hauer1-10/+8
We called fec_stop() in fec_enet_close(), thus we have to call fec_restart() in fec_enet_open(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16FEC Buffer reworkSascha Hauer1-51/+88
Allocate buffers in fec_open and free them again in fec_close. This makes it possible to use this driver as a module. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: switch to net_device_opsSascha Hauer1-16/+20
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: remove debugging printksSascha Hauer1-33/+0
These printks in fec_timeout do not give useful information in a production kernel. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: align receive packetsSascha Hauer1-2/+3
Otherwise we get a lot of alignment errors Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: refactor init functionSascha Hauer1-35/+4
fec_enet_init() does the hardware initialisation and then calls fec_restart() which does the same initialisation again, so we can safely remove the initialisation from fec_enet_init(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: refactor set_multicast_list() to make it more readableSascha Hauer1-48/+51
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: Codingstyle cleanupsSascha Hauer1-215/+139
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: remove unnecessary castSascha Hauer1-9/+5
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: do not typedef struct typesSascha Hauer1-17/+20
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16fec: switch to writel/readlSascha Hauer1-164/+115
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08FEC driver: add missing #endifSascha Hauer1-0/+1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26m68knommu: remove ColdFire specific setup code from FEC driverGreg Ungerer1-500/+12
Remove the ColdFire CPU specific setup from here. The ColdFire CPU platform code now sets up all this. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-03Merge branch 'master' of ↵David S. Miller1-1/+1
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/Kconfig
2009-02-01FEC: Turn FEC driver into platform device driverSascha Hauer1-29/+220
This turns the fec driver into a platform device driver for new platforms. Old platforms are still supported through a FEC_LEGACY define till they are also ported. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01fec: Add support for Freescale MX27Sascha Hauer1-2/+13
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01fec: replace flush_dcache_range with dma_sync_singleSascha Hauer1-2/+5
flush_dcache_range is not portable across architectures. Use dma_sync_single instead. Also, the memory must be synchronised in the receive path aswell. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01fec: Fix KS8721BL_ICSR phy register offsetSascha Hauer1-1/+1
According to the datasheet the ICSR register is at offset 27, not 22. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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