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path: root/drivers/net/smsc911x.c
AgeCommit message (Collapse)Author
2009-09-02drivers: Kill now superfluous ->last_rx storesEric Dumazet
The generic packet receive code takes care of setting netdev->last_rx when necessary, for the sake of the bonding ARP monitor. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Neil Horman <nhorman@txudriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06net: smsc911x: switch to new dev_pm_opsDaniel Mack
Hibernation is unsupported for now, which meets the actual implementation in the driver. For free/thaw, the chip's D2 state should be entered. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12netdev: restore MTU change operationBen Hutchings
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>
2009-07-05drivers/net/smsc911x.c: Fix resource size off by 1 errorJulia Lawall
The call resource_size(res) returns res->end - res->start + 1 and thus the second change is semantics-preserving. res_size is then used as the second argument of a call to request_mem_region, and the memory allocated by this call appears to be the same as what is released in the two calls to release_mem_region. So the size argument for those calls should be resource_size(size) as well. Alternatively, in the second call to release_mem_region, the second argument could be res_size, as that variable has already been initialized at the point of this call. The problem was found using the following semantic patch: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ struct resource *res; @@ - (res->end - res->start) + 1 + resource_size(res) @@ struct resource *res; @@ - res->end - res->start + BAD(resource_size(res)) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-08netdev: smsc911x: add missing __devexit_p() usageMike Frysinger
The smsc911x_drv_remove() function is declared with __devexit, so the assignment to the driver structure needs __devexit_p() wrappings to prevent build failure when hotplug is disabled. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-07smsc911x: fix calculation of res_size for ioremapMatthias Ludwig
fix size of remaped iomem, which is 1 byte to small (e.g. mappes only 0xff bytes instead of 0x100) Signed-off-by: Matthias Ludwig <mludwig@ultratronik.de> Acked-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-05net: smsc911x: add power management functionsDaniel Mack
This adds a power management implementation for smsc911x.c which assumes the chips remains powered during suspend. The device is put in its D1 power saving mode. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-28smsc911x: add fifo byteswap support V2Magnus Damm
This is V2 of the smsc911x fifo byteswap patch. The smsc911x hardware supports both big and little and endian hardware configurations, and the linux smsc911x driver currently detects word order. For correct operation on big endian platforms lacking swapped byte lanes the following patch is needed. Only fifo data is swapped, register data does not require any swapping. Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08smsc911x: correct debugging message on mii read timeoutSteve Glendinning
the warning printed when a mii READ times out currently says "Timed out waiting for MII write to finish". This patch corrects this. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-06smsc911x: remove unused #include <linux/version.h>Huang Weiyi
Remove unused #include <linux/version.h> in drivers/net/smsc911x.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-27smsc911x: enforce read-after-write timing restriction on eeprom accessSteve Glendinning
The LAN911x datasheet specifies a minimum delay of 45ns between a write of E2P_DATA and any read. This patch adds a single dummy read of BYTE_TEST to enforce this timing constraint. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/virtio_net.c
2009-03-19smsc911x: allow setting of mac addressSteve Glendinning
This patch replaces the generic eth_mac_addr function with one that also updates the hardware mac address registers. It also renames the existing smsc911x_set_mac_address function to smsc911x_hw_set_mac_address for clarity. Newer LAN911x and all LAN921x devices also support changing the mac address while the device is running, which is useful for some bonding modes. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-19smsc911x: replace print_mac with %pMSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-19smsc911x: define status word positions as constantsSteve Glendinning
The vast majority of bit constants in this driver are defined in the header file, but TX and RX status word bits are not. This patch (which should make no functional change) defines these, to make the driver slightly more readable. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18smsc911x: reset last known duplex and carrier on openSteve Glendinning
smsc911x_phy_adjust_link is called periodically by the phy layer (as it's run in polling mode), and it only updates the hardware when it sees a change in duplex or carrier. This patch clears the last known values every time the interface is brought up, instead of only when the module is loaded. Without this patch the adjust_link function never updates the hardware after an ifconfig down; ifconfig up. On a full duplex link this causes the tx error counter to increment, even though packets are correctly transmitted, as the default MAC_CR register setting is for half duplex. The tx errors are "no carrier" errors, which should be ignored in full-duplex mode. When MAC_CR is set to "full duplex" mode they are correctly ignored by the hardware. Note that even with this patch the tx error counter can increment if packets are transmitted between "ifconfig up" and the first phy poll interval. An improved solution would use the phy interrupt with phylib, but I haven't managed to make this work 100% robustly yet. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13smsc911x: improve EEPROM loading timeout logic in openSteve Glendinning
This patch from Juha Leppanen suppresses a false warning if the eeprom load succeeds on the very last attempt. Juha> In function smsc911x_open smsc911x_reg_read+udelay can be run 50 Juha> times with timeout reaching -1, and the following if statetement Juha> does not catch the timeout and no warning is issued. Also if the Juha> 50th smsc911x_reg_read is GOOD, loop is exited with timeout as 0 Juha> and bogus warning issued. Replace testing order and --timeout Juha> instead of timeout-- and now max 50 smsc911x_reg_read's are done, Juha> with max 49 udelays. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13smsc911x: check for FFWD success before checking for timeoutSteve Glendinning
This patch from Juha Leppanen suppresses a false warning if a fast forward operation succeeds on the very last attempt. Juha> If smsc911x_reg_read loop is executed 500 times, timeout reaches 0 Juha> and the 500th smsc911x_reg_read result in val is ignored. If Juha> testing order is changed, then val is checked first. The 500th Juha> reg_read might be GOOD, why ignore it! Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
2009-02-20SMSC: timeout reaches -1Roel Kluin
With a postfix decrement timeouts will reach -1 rather than 0, so the error path does not appear. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01smsc911x: allow mac address to be saved before device resetSteve Glendinning
Some platforms (for example pcm037) do not have an EEPROM fitted, instead storing their mac address somewhere else. The bootloader fetches this and configures the ethernet adapter before the kernel is started. This patch allows a platform to indicate to the driver via the SMSC911X_SAVE_MAC_ADDRESS flag that the mac address has already been configured via such a mechanism, and should be saved before resetting the chip. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01smsc911x: add external phy detection overridesSteve Glendinning
On LAN9115/LAN9117/LAN9215/LAN9217, external phys are supported. These are usually indicated by a hardware strap which sets an "external PHY detected" bit in the HW_CFG register. In some cases it is desirable to override this hardware strap and force use of either the internal phy or an external PHY. This patch adds SMSC911X_FORCE_INTERNAL_PHY and SMSC911X_FORCE_EXTERNAL_PHY flags so a platform can indicate this preference via its platform_data. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01smsc911x: register isr as IRQF_SHAREDSteve Glendinning
The isr supports shared operation, so register it with the IRQF_SHARED flag to indicate this. This patch also removes the IRQF_DISABLED flag. This driver doesn't need it, and IRQF_DISABLED isn't guaranteed when using shared interrupts. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01smsc911x: add support for platform-specific irq flagsSteve Glendinning
this patch adds support for the platform_device's resources to indicate additional flags to use when registering the irq, for example IORESOURCE_IRQ_LOWLEVEL (which corresponds to IRQF_TRIGGER_LOW). These should be set in the irq resource flags field. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-30Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/e1000/e1000_main.c
2009-01-29smsc911x: timeout reaches -1Roel Kluin
With a postfix decrement the timeout will reach -1 rather than 0, so the warning will not be issued. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-26smsc911x: leave RX_STOP interrupt permanently enabledSteve Glendinning
smsc911x_set_multicast_list currently performs the only non-atomic read-modify-write of INT_EN. This patch permanently enables the RXSTOP_INT interrupt, and changes the ISR to only conditionally run the multicast filter workaround code. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-26net: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21net: Remove redundant NAPI functionsBen Hutchings
Following the removal of the unused struct net_device * parameter from the NAPI functions named *netif_rx_* in commit 908a7a1, they are exactly equivalent to the corresponding *napi_* functions and are therefore redundant. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11smsc911x: register irq with device name, not driver nameSteve Glendinning
This change lets "cat /proc/interrupts" show the name of the ethernet device (e.g. eth0) rather than the driver name (smsc911x). Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11smsc911x: fix smsc911x_reg_read compiler warningSteve Glendinning
if this code path is ever hit, the platform_data struct isn't properly configured with a bus width flag so the device won't work (hence the BUG()). This patch adds a dummy return statement to eliminate this compiler warning: drivers/net/smsc911x.c: In function 'smsc911x_reg_read': drivers/net/smsc911x.c:148: warning: control reaches end of non-void function Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-11netdev: add missing set_mac_address hookStephen Hemminger
Many drivers lost the ability to set ethernet address accidently during the net_device_ops conversion. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-29smsc911x: compile fix re netif_rx signature changesAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25smsc911x: fix platform resource call during module unloadSteve Glendinning
This patch fixes a typo, the platform_get_resource calls in smsc911x_drv_remove are supposed to look the same as those in smsc911x_drv_probe. Reported and fixed by dfoley@telus.net. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25smsc911x: don't clobber driver_dataSteve Glendinning
smsc911x uses driver_data to store our net_device, don't overwrite this with the mii_bus. Reported and fixed by dfoley@telus.net. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25smsc911x: make smsc911x_ethtool_ops constantSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25smsc911x: convert driver to use net_device_opsSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25smsc911x: fix BUG if module is removed while interface is upSteve Glendinning
If the module is removed while its interface is up, smsc911x_stop is not called until after smsc911x_drv_remove has disposed of phy_dev. This patch changes the stop method to handle this situation. This is a different problem to the one reported by dfoley@telus.net. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-22net: Remove unused netdev arg from some NAPI interfaces.Neil Horman
When the napi api was changed to separate its 1:1 binding to the net_device struct, the netif_rx_[prep|schedule|complete] api failed to remove the now vestigual net_device structure parameter. This patch cleans up that api by properly removing it.. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-16net: Refactor full duplex flow control resolutionSteve Glendinning
These 4 drivers have identical full duplex flow control resolution functions. This patch changes them all to use one common function. The function in question decides whether a device should enable TX and RX flow control in a standard way (IEEE 802.3-2005 table 28B-3), so this should also be useful for other drivers. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-12smsc911x: make smsc911x_poll_controller staticSteve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-10smsc911x: add dynamic bus configurationSteve Glendinning
Convert the driver to select 16-bit or 32-bit bus access at runtime, at a small performance cost. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-06SMSC LAN911x and LAN921x vendor driverSteve Glendinning
Attached is a driver for SMSC's LAN911x and LAN921x families of embedded ethernet controllers. There is an existing smc911x driver in the tree; this is intended to replace it. Dustin McIntire (the author of the smc911x driver) has expressed his support for switching to this driver. This driver contains workarounds for all known hardware issues, and has been tested on all flavours of the chip on multiple architectures. This driver now uses phylib, so this patch also adds support for the device's internal phy Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Bahadir Balban <Bahadir.Balban@arm.com> Signed-off-by: Dustin Mcintire <dustin@sensoria.com> Signed-off-by: Bill Gatliff <bgat@billgatliff.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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