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path: root/drivers/net/sfc/workarounds.h
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2011-03-23sfc: Siena: Disable write-combining when SR-IOV is enabledSteve Hodgson1-0/+2
If SR-IOV is enabled by firmware, even if it is not enabled in the PCI capability, TX pushes using write-combining may be corrupted. We want to know whether it is enabled before mapping the NIC registers, and even if PCI extended capabilities are not accessible. Therefore, we look for the MSI capability, which is removed if SR-IOV is enabled. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-03-01sfc: Update copyright datesBen Hutchings1-1/+1
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2010-09-23sfc: Remove support for SFN4111T, SFT9001 and Falcon GMACBen Hutchings1-8/+1
SFN4111T never reached production and is not being used for internal or customer testing. Since we have no production Falcon boards using the SFT9001 or the GMAC, remove support for them as well. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02sfc: Workaround flush failures on Falcon B0Steve Hodgson1-1/+1
Under certain conditions a PHY may backpressure Falcon B0 in such a way that flushes timeout. In normal circumstances the phy poller would fix the PHY, and the flush could complete. But efx_nic_flush_queues() is always called after efx_stop_all(), so the poller has been stopped. Even if this weren't the case, how long would we have to wait for the poller to fix this? And several callers of efx_nic_flush_queues() are about to reset the device anyway - so we don't need to do anything. Work around this bug by scheduling a reset. Ensure that the MAC is never rewired back into the datapath before the reset runs (we already ignore all rx events anyway). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28sfc: Extend the legacy interrupt workaroundsSteve Hodgson1-1/+1
Siena has two problems with legacy interrupts: 1. There is no synchronisation between the ISR read completion, and the interrupt deassert message. 2. A downstream read at the "wrong" moment can return 0, and suppress generating the next interrupt. Falcon should suffer from both of these, and it appears it does. Enable EFX_WORKAROUND_15783 on Falcon as well. Also, when we see queues == 0, ensure we always schedule or rearm every event queue. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-30sfc: Update version, copyright dates, authorsBen Hutchings1-1/+1
This driver has been mostly rewritten since Michael Brown's initial work, so swap the order of the authors. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-30sfc: Add support for SFC9000 family (2)Ben Hutchings1-0/+5
This integrates support for the SFC9000 family of 10G Ethernet controllers and LAN-on-motherboard chips, starting with the SFL9021 'Siena' and SFC9020 'Bethpage'. Credit for this code is largely due to my colleagues at Solarflare: Guido Barzini Steve Hodgson Kieran Mansley Matthew Slattery Neil Turton Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29sfc: Decouple NIC revision number from Falcon PCI revision numberBen Hutchings1-2/+2
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29sfc: Remove another unused workaround macroBen Hutchings1-2/+0
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29sfc: Remove EFX_WORKAROUND_9141 macroMatthew Slattery1-2/+0
The "bug9141 workaround" of setting TX_FLUSH_MIN_LEN_EN should really be considered as a normal bit of configuration rather than a workaround. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-29sfc: Limit some hardware workarounds to FalconBen Hutchings1-2/+3
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-24sfc: Move all TX DMA length limiting into tx.cBen Hutchings1-0/+2
Replace the duplicated logic in efx_enqueue_skb() and efx_tx_queue_insert() with an inline function, efx_max_tx_len(). Remove the failed attempt at abstracting hardware-specifics and put all the magic numbers in efx_max_tx_len(). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-22sfc: Pad packets to 33 bytes to prevent TX packet parser lockupBen Hutchings1-0/+2
The packet parser used in the TX data path for locating checksum fields can lose synchronisation with the TX queue manager when handling packets that look like IPv4 but are too short (17-32 bytes). Work around this by padding to 33 bytes. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31sfc: SFX7101/SFT9001: Fix AN advertisementsBen Hutchings1-4/+0
All 10Xpress PHYs require autonegotiation all the time; enforce this in the set_settings() method and do not treat it as a workaround. Remove claimed support for 100M HD mode since it is not supported by current firmware. Do not set speed override bits when AN is enabled, and do not use register 1.49192 for AN configuration as it can override what we set elsewhere. Always set the AN selector bits to 1 (802.3). Fix confusion between Next Page and Extended Next Page. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31sfc: SFT9001: Always enable XNP exchange on SFT9001 rev BBen Hutchings1-1/+1
This workaround is not specific to rev A. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31sfc: SFT9001: Fix speed reporting in 1G PHY loopbackSteve Hodgson1-0/+5
Instead of disabling AN in loopback, just prevent restarting AN and override the speed in sft9001_get_settings(). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-31sfc: SFX7101: Remove workaround for bad link trainingSteve Hodgson1-3/+0
Early versions of the SFX7101 firmware could complete link training in a state where it would not adequately cancel noise (Solarflare bug 10750). We previously worked around this by resetting the PHY after seeing many Ethernet CRC errors. This workaround is unsafe since it takes no account of the interval between errors; it also appears to be unnecessary with production firmware. Therefore remove it. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-13sfc: Add support for SFN4111TBen Hutchings1-1/+2
Add support code for the SFN4111T 100/1000/10GBASE-T reference design, based in part on the existing code for the SFE4001. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-13sfc: Add support for Solarflare 10Xpress SFT9001Ben Hutchings1-1/+8
Add type codes for the new PHY and rename the SFX7101 type code. Add definition of clause 22 extension MMD. Adapt the 10Xpress SFX7101 code to support the SFT9001 as well. Clean up register definitions. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-06sfc: Use lm87 and lm90 drivers for board temperature/power monitoringBen Hutchings1-0/+2
Add board monitoring to periodic work whenever link is down. For SFE4001, report when a fault has caused the PHY to turn off. For SFE4002, switch XFP PHY into low-power state in case of a fault. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-25sfc: Remove workaround for old firmware bugBen Hutchings1-2/+0
There was a bug in XAUI synchronisation in early 10Xpress firmware versions. This is fixed in released firmware and we do not need to work around it. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-03sfc: Remove mistaken hardware workaroundBen Hutchings1-2/+0
We believed that some valid SNAP frames were being marked as invalid. In fact this is not the case and no workaround is needed. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-22sfc: Replaced various macros with inline functionsBen Hutchings1-1/+1
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-29New driver "sfc" for Solarstorm SFC4000 controller.Ben Hutchings1-0/+56
The driver supports the 10Xpress PHY and XFP modules on our reference designs SFE4001 and SFE4002 and the SMC models SMC10GPCIe-XFP and SMC10GPCIe-10BT. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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