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path: root/drivers/net/tg3.c
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2006-09-24Merge branch 'upstream-linus' of ↵Linus Torvalds1-64/+64
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (217 commits) net/ieee80211: fix more crypto-related build breakage [PATCH] Spidernet: add ethtool -S (show statistics) [NET] GT96100: Delete bitrotting ethernet driver [PATCH] mv643xx_eth: restrict to 32-bit PPC_MULTIPLATFORM [PATCH] Cirrus Logic ep93xx ethernet driver r8169: the MMIO region of the 8167 stands behin BAR#1 e1000, ixgb: Remove pointless wrappers [PATCH] Remove powerpc specific parts of 3c509 driver [PATCH] s2io: Switch to pci_get_device [PATCH] gt96100: move to pci_get_device API [PATCH] ehea: bugfix for register access functions [PATCH] e1000 disable device on PCI error drivers/net/phy/fixed: #if 0 some incomplete code drivers/net: const-ify ethtool_ops declarations [PATCH] ethtool: allow const ethtool_ops [PATCH] sky2: big endian [PATCH] sky2: fiber support [PATCH] sky2: tx pause bug fix drivers/net: Trim trailing whitespace [PATCH] ehea: IBM eHEA Ethernet Device Driver ... Manually resolved conflicts in drivers/net/ixgb/ixgb_main.c and drivers/net/sky2.c related to CHECKSUM_HW/CHECKSUM_PARTIAL changes by commit 84fa7933a33f806bbbaae6775e87459b1ec584c0 that just happened to be next to unrelated changes in this update.
2006-09-23[TG3]: Convert the pci_device_id table to PCI_DEVICE()Henrik Kretzschmar1-111/+56
Convert the pci_device_ids to PCI_DEVICE() macro. Saves 1.5k in the sourcefile. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[TG3]: Constify firmware structsAndreas Mohr1-13/+13
Constify largish areas of firmware data in Tigon3 ethernet driver. non-const: lsmod: tg3 101404 0 objdump -x: .rodata 000003e8 .data 00004a0c ls -l: -rw-r--r-- 1 root root 114404 2006-08-19 21:36 drivers/net/tg3.ko const: lsmod: tg3 101404 0 objdump -x: .rodata 000042c8 .data 00000b4c ls -l: -rw-r--r-- 1 root root 114532 2006-08-19 21:06 drivers/net/tg3.ko Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETEPatrick McHardy1-3/+3
Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-13drivers/net: const-ify ethtool_ops declarationsJeff Garzik1-1/+1
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13drivers/net: Trim trailing whitespaceJeff Garzik1-62/+62
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-20drivers/net: Remove deprecated use of pci_module_init()Jeff Garzik1-1/+1
From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-08[TG3]: Fix tx race conditionMichael Chan1-21/+28
Fix a subtle race condition between tg3_start_xmit() and tg3_tx() discovered by Herbert Xu <herbert@gondor.apana.org.au>: CPU0 CPU1 tg3_start_xmit() if (tx_ring_full) { tx_lock tg3_tx() if (!netif_queue_stopped) netif_stop_queue() if (!tx_ring_full) update_tx_ring netif_wake_queue() tx_unlock } Even though tx_ring is updated before the if statement in tg3_tx() in program order, it can be re-ordered by the CPU as shown above. This scenario can cause the tx queue to be stopped forever if tg3_tx() has just freed up the entire tx_ring. The possibility of this happening should be very rare though. The following changes are made: 1. Add memory barrier to fix the above race condition. 2. Eliminate the private tx_lock altogether and rely solely on netif_tx_lock. This eliminates one spinlock in tg3_start_xmit() when the ring is full. 3. Because of 2, use netif_tx_lock in tg3_tx() before calling netif_wake_queue(). 4. Change TX_BUFFS_AVAIL to an inline function with a memory barrier. Herbert and David suggested using the memory barrier instead of volatile. 5. Check for the full wake queue condition before getting netif_tx_lock in tg3_tx(). This reduces the number of unnecessary spinlocks when the tx ring is full in a steady-state condition. 6. Update version to 3.65. Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-08[TG3]: skb->dev assignment is done by netdev_alloc_skbChristoph Hellwig1-2/+0
All caller of netdev_alloc_skb need to assign skb->dev shortly afterwards. Move it into common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-03[TG3]: Convert to netdev_alloc_skbDavid S. Miller1-5/+5
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-26[TG3]: Update version and reldateMichael Chan1-2/+2
Update version to 3.63. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-26[TG3]: Handle tg3_init_rings() failuresMichael Chan1-5/+27
Handle dev_alloc_skb() failures when initializing the RX rings. Without proper handling, the driver will crash when using a partial ring. Thanks to Stephane Doyon <sdoyon@max-t.com> for reporting the bug and providing the initial patch. Howie Xu <howie@vmware.com> also reported the same issue. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-26[TG3]: Add tg3_restart_hw()Michael Chan1-22/+58
Add tg3_restart_hw() to handle failures when re-initializing the device. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-09[TG3]: add amd8131 to "write reorder" chipsetsJohn W. Linville1-0/+2
Add the AMD 8131 bridge to the list of chipsets that reorder writes. Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-04[TG3]: Add ipv6 TSO featureMichael Chan1-9/+24
Enable ipv6 TSO feature on chips that support it. Update version to 3.61. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-03[PATCH] irq-flags: drivers/net: Use the new IRQF_ constantsThomas Gleixner1-3/+3
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-01Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds1-10/+97
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IPV6]: Added GSO support for TCPv6 [NET]: Generalise TSO-specific bits from skb_setup_caps [IPV6]: Added GSO support for TCPv6 [IPV6]: Remove redundant length check on input [NETFILTER]: SCTP conntrack: fix crash triggered by packet without chunks [TG3]: Update version and reldate [TG3]: Add TSO workaround using GSO [TG3]: Turn on hw fix for ASF problems [TG3]: Add rx BD workaround [TG3]: Add tg3_netif_stop() in vlan functions [TCP]: Reset gso_segs if packet is dodgy
2006-07-01[TG3]: Update version and reldateMichael Chan1-2/+2
Update version to 3.61. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-01[TG3]: Add TSO workaround using GSOMichael Chan1-4/+49
Use GSO to workaround a rare TSO bug on some chips. This hardware bug may be triggered when the TSO header size is greater than 80 bytes. When this condition is detected in a TSO packet, the driver will use GSO to segment the packet to workaround the hardware bug. Thanks to Juergen Kreileder <jk@blackdown.de> for reporting the problem and collecting traces to help debug the problem. And thanks to Herbert Xu <herbert@gondor.apana.org.au> for providing the GSO mechanism that happens to be the perfect workaround for this problem. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-01[TG3]: Turn on hw fix for ASF problemsMichael Chan1-2/+6
Clear a bit to enable a hardware fix for some ASF related problem. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-01[TG3]: Add rx BD workaroundMichael Chan1-2/+28
Add workaround to limit the burst size of rx BDs being DMA'ed to the chip. This works around hardware errata on a number of 5750, 5752, and 5755 chips. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-01[TG3]: Add tg3_netif_stop() in vlan functionsMichael Chan1-0/+12
Add tg3_netif_stop() when changing the vlgrp (vlan group) pointer. It is necessary to quiesce the device before changing that pointer. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-24[SPARC64]: Convert sparc64 PCI layer to in-kernel device tree.David S. Miller1-4/+6
One thing this change pointed out was that we really should pull the "get 'local-mac-address' property" logic into a helper function all the network drivers can call. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23[NET]: Merge TSO/UFO fields in sk_buffHerbert Xu1-2/+2
Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not going to scale if we add any more segmentation methods (e.g., DCCP). So let's merge them. They were used to tell the protocol of a packet. This function has been subsumed by the new gso_type field. This is essentially a set of netdev feature bits (shifted by 16 bits) that are required to process a specific skb. As such it's easy to tell whether a given device can process a GSO skb: you just have to and the gso_type field and the netdev's features field. I've made gso_type a conjunction. The idea is that you have a base type (e.g., SKB_GSO_TCPV4) that can be modified further to support new features. For example, if we add a hardware TSO type that supports ECN, they would declare NETIF_F_TSO | NETIF_F_TSO_ECN. All TSO packets with CWR set would have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO packets would be SKB_GSO_TCPV4. This means that only the CWR packets need to be emulated in software. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-18[TG3]: Convert to non-LLTXMichael Chan1-17/+10
Herbert Xu pointed out that it is unsafe to call netif_tx_disable() from LLTX drivers because it uses dev->xmit_lock to synchronize whereas LLTX drivers use private locks. Convert tg3 to non-LLTX to fix this issue. tg3 is a lockless driver where hard_start_xmit and tx completion handling can run concurrently under normal conditions. A tx_lock is only needed to prevent netif_stop_queue and netif_wake_queue race condtions when the queue is full. So whether we use LLTX or non-LLTX, it makes practically no difference. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-18[TG3]: Remove unnecessary tx_lockMichael Chan1-4/+0
Remove tx_lock where it is unnecessary. tg3 runs lockless and so it requires interrupts to be disabled and sync'ed, netif_queue and NAPI poll to be stopped before the device can be reconfigured. After stopping everything, it is no longer necessary to get the tx_lock. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-18[TG3]: update version and reldateMichael Chan1-2/+2
Update version to 3.60. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-18[TG3]: Add recovery logic when MMIOs are re-orderedMichael Chan1-5/+48
Add recovery logic when we suspect that the system is re-ordering MMIOs. Re-ordered MMIOs to the send mailbox can cause bogus tx completions and hit BUG_ON() in the tx completion path. tg3 already has logic to handle re-ordered MMIOs by flushing the MMIOs that must be strictly ordered (such as the send mailbox). Determining when to enable the flush is currently a manual process of adding known chipsets to a list. The new code replaces the BUG_ON() in the tx completion path with the call to tg3_tx_recover(). It will set the TG3_FLAG_MBOX_WRITE_REORDER flag and reset the chip later in the workqueue to recover and start flushing MMIOs to the mailbox. A message to report the problem will be printed. We will then decide whether or not to add the host bridge to the list of chipsets that do re-ordering. We may add some additional code later to print the host bridge's ID so that the user can report it more easily. The assumption that re-ordering can only happen on x86 systems is also removed. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-18[TG3]: Add 5786 PCI IDMichael Chan1-0/+2
Add PCI ID for BCM5786 which is a variant of 5787. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-09[TG3]: Handle Sun onboard tg3 chips more correctly.David S. Miller1-96/+48
Get rid of all the SUN_570X logic and instead: 1) Make sure MEMARB_ENABLE is set when we probe the SRAM for config information. If that is off we will get timeouts. 2) Always try to sync with the firmware, if there is no firmware running do not treat it as an error and instead just report it the first time we notice this condition. 3) If there is no valid SRAM signature, assume the device is onboard by setting TG3_FLAG_EEPROM_WRITE_PROT. Update driver version and release date. With help from Michael Chan and Fabio Massimo Di Nitto. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-23[TG3]: Add some missing rx error countersMichael Chan1-2/+6
Add some missing rx error counters for 5705 and newer chips. Update version to 3.58. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-12[TG3]: ethtool always report port is TP.Karsten Keil1-3/+5
Even with fiber cards ethtool reports that the connected port is TP, the patch fix this. Signed-off-by: Karsten Keil <kkeil@suse.de> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-05-10[TG3]: Fix possible NULL deref in tg3_run_loopback().Jesper Juhl1-0/+3
tg3_run_loopback doesn't check that dev_alloc_skb() returns anything useful. Even if dev_alloc_skb() fails to return an skb to us we'll happily go on and assume it did, so we risk dereferencing a NULL pointer. Much better to fail gracefully by returning -ENOMEM than crashing here. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-30[TG3]: Update version and reldateMichael Chan1-2/+2
Update version to 3.57. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-30[TG3]: Fix bug in nvram writeMichael Chan1-1/+1
Fix bug in nvram write function. If the starting nvram address offset happens to be the last dword of the page, the NVRAM_CMD_LAST bit will not get set in the existing code. This patch fixes the bug by changing the "else if" to "if" so that the last dword condition always gets checked. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-30[TG3]: Add reset_phy parameter to chip reset functionsGary Zambrano1-17/+17
Add a reset_phy parameter to tg3_reset_hw() and tg3_init_hw(). With the full chip reset during MAC address change, the automatic PHY reset during chip reset will cause a link down and bonding will not work properly as a result. With this reset_phy parameter, we can do a chip reset without link down when changing MAC address or MTU. Signed-off-by: Gary Zambrano <zambrano@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-30[TG3]: Reset chip when changing MAC addressMichael Chan1-3/+17
Do the full chip reset when changing MAC address if ASF is enabled. ASF sometimes uses a different MAC address than the driver. Without the reset, the ASF MAC address may be overwritten when the driver's MAC address is changed. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-30[TG3]: Add phy workaroundMichael Chan1-4/+13
Add some PHY workaround code to reduce jitter on some PHYs. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-30[TG3]: Call netif_carrier_off() during phy resetMichael Chan1-0/+7
Add netif_carrier_off() call during tg3_phy_reset(). This is needed to properly track the netif_carrier state in cases where we do a PHY reset with interrupts disabled. The SerDes code will not run properly if the netif_carrier state is wrong. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-10[TG3]: Speed up SRAM access (2nd version)Michael Chan1-27/+42
Speed up SRAM read and write functions if possible by using MMIO instead of config. cycles. With this change, the post reset signature done at the end of D3 power change must now be moved before the D3 power change. IBM reported a problem on powerpc blades during ethtool self test that was caused by the memory test taking excessively long. Config. cycles are very slow on powerpc and the memory test can take more than 10 seconds to complete using config. cycles. David Miller informed me that an earlier version of the patch caused problems on sparc64 systems with built-in tg3 chips. This version fixes the problem by excluding all SUN built-in tg3 chips from doing MMIO SRAM access. TG3_FLAG_EEPROM_WRITE_PROT is also set unconditionally when TG3_FLG2_SUN_570X is set. This should be sane as all SUN chips are built-in and do not require Vaux switching. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-10[TG3]: Kill some less useful flagsMichael Chan1-13/+8
Kill the TG3_FLAG_NO_{TX|RX}_PSEUDO_CSUM flags because they are not very useful. This will free up some bits for new flags. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-10[TG3]: Fix a memory leak.Adrian Bunk1-3/+7
This patch fixes a memory leak (buf wasn't freed) spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds1-10/+5
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (48 commits) Documentation: fix minor kernel-doc warnings BUG_ON() Conversion in drivers/net/ BUG_ON() Conversion in drivers/s390/net/lcs.c BUG_ON() Conversion in mm/slab.c BUG_ON() Conversion in mm/highmem.c BUG_ON() Conversion in kernel/signal.c BUG_ON() Conversion in kernel/signal.c BUG_ON() Conversion in kernel/ptrace.c BUG_ON() Conversion in ipc/shm.c BUG_ON() Conversion in fs/freevxfs/ BUG_ON() Conversion in fs/udf/ BUG_ON() Conversion in fs/sysv/ BUG_ON() Conversion in fs/inode.c BUG_ON() Conversion in fs/fcntl.c BUG_ON() Conversion in fs/dquot.c BUG_ON() Conversion in md/raid10.c BUG_ON() Conversion in md/raid6main.c BUG_ON() Conversion in md/raid5.c Fix minor documentation typo BFP->BPF in Documentation/networking/tuntap.txt ...
2006-04-02BUG_ON() Conversion in drivers/net/Eric Sesterhenn1-10/+5
this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01[TG3]: Update driver version and reldate.David S. Miller1-2/+2
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-01[TG3]: Revert "Speed up SRAM access"David S. Miller1-30/+23
Undo commit 100c4673307f5806788791b9b886877c806afd96 MMIOs timeout more quickly that PCI config cycles and some of these SRAM accesses can take a very long time, triggering the MMIO limits on some sparc64 PCI controllers and thus resulting in bus timeouts and bus errors. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-29[TG3]: Update version and reldateMichael Chan1-2/+2
Update version to 3.55. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-29[TG3]: Skip timer code during full lockMichael Chan1-0/+4
Skip the main timer code if interrupts are disabled in the full lock state. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-29[TG3]: Speed up SRAM accessMichael Chan1-23/+30
Speed up SRAM read and write functions if possible by using MMIO instead of config. cycles. With this change, the post reset signature done at the end of D3 power change must now be moved before the D3 power change. IBM reported a problem on powerpc blades during ethtool self test that was caused by the memory test taking excessively long. Config. cycles are very slow on powerpc and the memory test can take more than 10 seconds to complete using config. cycles. As a result, NETDEV WATCHDOG can be triggered during self test and the chip can end up in a funny state. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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