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path: root/drivers/net/sky2.c
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2007-07-10sky2: 1.16 versionStephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: remove some leftover debug messagesStephen Hemminger
Eliminate extra debug messages Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: use upper_32_bits() macroStephen Hemminger
Use upper_32_bits() inline Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: use roundup() macroStephen Hemminger
Use roundup() macro to size receive buffer. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: check drop truncated packetsStephen Hemminger
If packet larger than MTU is received, the driver uses hardware to truncate the packet. Use the status registers to catch/drop them. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: add support for read/write of EEPROMStephen Hemminger
Add get/set eeprom support for sky2. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: receive fillStephen Hemminger
Simplify receive buffer refill logic. Rather than trying to update incrementally; do receive ring refill at end of receive processing. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: check for more work before leaving NAPIStephen Hemminger
This patch avoids generating another IRQ if more packets arrive while in the NAPI poll routine. Before marking device as finished, it rechecks that the status ring is empty. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: debug interfaceStephen Hemminger
Add an optional debug interface for displaying state of transmit/receive rings. Creates a file debugfs/sky2/ethX for each device that is up. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: carrier managementStephen Hemminger
Make sky2 handle carrier similar to other drivers, eliminate some possible races in carrier state transistions. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10sky2: restore workarounds for lost interruptsStephen Hemminger
This patch restores a couple of workarounds from 2.6.16: * restart transmit moderation timer in case it expires during IRQ routine * default to having 10 HZ watchdog timer. At this point it more important not to hang than to worry about the power cost. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: version 1.15Stephen Hemminger
New version because of new chip support. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: Yukon Extreme (88e8071) support.Stephen Hemminger
Enable support for Yukon EX chipset (88e8071). Most of changes are related to new commands to chip for transmit, and change in status and checksumming. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: GPIO registerStephen Hemminger
The General Purpose I/O register is yet another hardware workaround catchall. Enable workaround that vendor driver does to stay but for bug compatiable. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: enable clocks before probeStephen Hemminger
Catch-22: On Yukon EX (88E8071) need to have internal clocks enabled before reading chip id. It is harmless on other chips. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: rename BMU registerStephen Hemminger
This register is more of a test and control register on Yukon2. So rename it to Q_TEST and give some bit definitions. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: Add PCI device specfic register 4 & 5Stephen Hemminger
Need to setup more PCI control control registers are on Yukon EX. Some of these also exist on Yukon EC-U as well. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08sky2: avoid reserved regions on ethtool reg dumpStephen Hemminger
On Yukon EX reading some of the undocumented places in the memory space will cause a hang. Since they don't provide useful information, just skip the reserved areas. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-06-03sky2: Fix VLAN unregistrationStephen Hemminger
Fix sky2 disabling VLAN completely when the first vid is unregistered. sky2 disables VLAN completely when the first VID is unregistered. It should instead disable VLAN when the group is unregistered by calling sky2_vlan_rx_register with grp = NULL. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> drivers/net/sky2.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-30sky2: program proper register for fiber PHYStephen Hemminger
Driver was reading value from one register, setting bit and then writing the wrong register. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-30sky2: checksum offload plus vlan bugStephen Hemminger
Driver was not correctly setting up transmit descriptor when doing VLAN tag insertion with checksum offload. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-30sky2: dont set bogus bit in PHY registerStephen Hemminger
This code inherited from the sk98lin driver is incorrect on the Yukon2. The GPHY_CTRL register values are specific to the internal PHY of the chip and the values used were leftovers. Driver was setting bit 13 which is now the INT polarity for the PHY! Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-17sky2: memory barriers changeStephen Hemminger
Do some memory barrier changes for safety/perfomance: Don't need read after update to index, mmiowb() followed by read at end of irq is sufficient. Signed-off-by: Stephn Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-17sky2: remove dual port workaroundStephen Hemminger
This workaround was added to deal with NAPI core and how it affected dual port shared polling. It turned out not to be necessary. Stopping device 0 only doesn't stop NAPI from working completely after that. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-17sky2: MIB counter overflow handlingStephen Hemminger
Make sure that if we ever get a MIB counter overflow interrupt (normally masked off), that the IRQ is cleared. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-17sky2: keep track of receive alloc failuresStephen Hemminger
When driver can't allocate receive buffer it drops incoming packet. Keep a counter. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-17sky2: PHY register settingsStephen Hemminger
Align the PHY setup of the sky2 driver with the vendor sk98lin (10.0.4.3) driver. The PHY register settings are mostly black magic, even with access to the documentation it isn't clear what the right values are. The changes are mostly comments, the code change only affects the Yukon FE (100 mbit only) version. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-17sky2: remove Gigabyte 88e8056 restrictionStephen Hemminger
The problems with Gigabyte motherboards are system configuration dependent. Since it works fine for some users, it doesn't make sense to deprive them. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11sky2: only disable 88e8056 on some boardsStephen Hemminger
Use DMI to add a blacklist of broken boards (so far only one). Hopefully, the problems will be solved later, and the the whole blacklist can disappear. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11sky2: 88e8071 support not readyStephen Hemminger
The driver is not ready to support 88e8071 chip. If this chip is present, system will hang on boot. So remove it from PCI device id's for now. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11sky2: fix oops on shutdownStephen Hemminger
If the device is fails during module startup for some reason like unsupported chip version then the driver would crash dereferencing a null pointer, on shutdown or suspend/resume. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-08sky2: re-enable 88E8056 for most motherboardsStephen Hemminger
This fixes the regression in 2.6.21 for users with 88e8056 on motherboard. Allow all but the Gigabyte motherboard has some unresolved bus problems. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-25[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}Arnaldo Carvalho de Melo
To clearly state the intent of copying from linear sk_buffs, _offset being a overly long variant but interesting for the sake of saving some bytes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2007-04-25[TCP]: Introduce tcp_hdrlen() and tcp_optlen()Arnaldo Carvalho de Melo
The ip_hdrlen() buddy, created to reduce the number of skb->h.th-> uses and to avoid the longer, open coded equivalent. Ditched a no-op in bnx2 in the process. I wonder if we should have a BUG_ON(skb->h.th->doff < 5) in tcp_optlen()... Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_transport_offset()Arnaldo Carvalho de Melo
For the quite common 'skb->h.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iphArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IP]: Introduce ip_hdrlen()Arnaldo Carvalho de Melo
For the common sequence "skb->nh.iph->ihl * 4", removing a good number of open coded skb->nh.iph uses, now to go after the rest... Just out of curiosity, here are the idioms found to get the same result: skb->nh.iph->ihl << 2 skb->nh.iph->ihl<<2 skb->nh.iph->ihl * 4 skb->nh.iph->ihl*4 (skb->nh.iph)->ihl * sizeof(u32) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-19sky2: version 1.14Stephen Hemminger
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-19sky2: no jumbo on Yukon FEStephen Hemminger
The Yukon FE (100mbit only) chips do not support large packets. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-19sky2: EC-U performance and jumbo supportStephen Hemminger
The Yukon EC Ultra chips have transmit settings for store and forward and PCI buffering. By setting these appropriately, normal performance goes from 750Mbytes/sec to 940Mbytes/sec (non-jumbo). It is also possible to do Jumbo mode, but it means turning off TSO and checksum offload so the performance gets worse. There isn't enough buffering for checksum offload to work. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-19sky2: disable ASF on all chip typesStephen Hemminger
Need to make sure and disable ASF on all chip types. Otherwise, there may be random reboots. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-19sky2: handle descriptor errorsStephen Hemminger
There should never be descriptor error unless hardware or driver is buggy. But if an error occurs, print useful information, clear irq, and recover. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-19sky2: disable support for 88E8056Stephen Hemminger
This device is having all sorts of problems that lead to data corruption and system instability. It gets receive status and data out of order, it generates descriptor and TSO errors, etc. Until the problems are resolved, it should not be used by anyone who cares about there system. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-11sky2: phy workarounds for Yukon EC-U A1Stephen Hemminger
The workaround Yukon EC-U wasn't comparing with correct version and wasn't doing correct setup. Without it, 88e8056 throws all sorts of errors. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-11sky2: turn on clocks when doing resumeStephen Hemminger
Some of these chips are disabled until clock is enabled. This fixes: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=404107 Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-11sky2: turn carrier off when downStephen Hemminger
Driver needs to turn off carrier when down. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-09sky2: turn off Rx checksum on bad hardwareStephen Hemminger
On Yukon FE, occasional hardware receive checksum errors are seen. An early indication of the problem is single bit differences in the two checksum engines. Use this as a detection mechanism to turn off Rx checksumming. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02[VLAN]: Avoid a 4-order allocation.Dan Aloni
This patch splits the vlan_group struct into a multi-allocated struct. On x86_64, the size of the original struct is a little more than 32KB, causing a 4-order allocation, which is prune to problems caused by buddy-system external fragmentation conditions. I couldn't just use vmalloc() because vfree() cannot be called in the softirq context of the RCU callback. Signed-off-by: Dan Aloni <da-x@monatomic.org> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-17sky2: v1.13Stephen Hemminger
New version. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-17sky2: receive error handling improvementsStephen Hemminger
Don't drop oversize frame it might be a VLAN (untagged). Use different counter for fifo overrun vs fifo error. Print error on fifo overrrun. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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