src-test2/sys/dev/sk/if_skreg.h, branch stable/7

MFC r176264:

2008-08-20T05:19:41Z

Nuke local jumbo allocator and switch to use of UMA backed page allocator for jumbo frame. o Removed unneeded jlist lock which was used to manage jumbo buffers. o Don't reinitialize hardware if MTU was not changed. o Added additional check for minimal MTU size. o Added a new tunable hw.skc.jumbo_disable to disable jumbo frame support for the driver. The tunable could be set for systems that do not need to use jumbo frames and it would save (9K * number of Rx descriptors) bytes kernel memory. o Jumbo buffer allocation failure is no longer critical error for the operation of sk(4). If sk(4) encounter the allocation failure it just disables jumbo frame support and continues to work without user intervention. With these changes jumbo frame performance of sk(4) was slightly increased and users should not encounter jumbo buffer allocation failure. Previously sk(4) tried to allocate physically contiguous memory, 3388KB for 256 Rx descriptors. Sometimes that amount of contiguous memory region could not be available for running systems which in turn resulted in failure of loading the driver.

Use our own timer for watchdog instead of if_watchdog/if_timer

2007-04-02T04:43:41Z

interface.

Remove incomplete Yukon II support code which was added in if_sk.c, rev 1.123.

2006-12-14T04:10:26Z

Yukon II users should use msk(4).

provide routines to access VPD data at the PCI layer...

2006-10-09T16:15:56Z

remove sk's own implementation, and use the new calls to get the data... Reviewed by: -arch

Add device ID for second generation D-Link DGE-530T.

2006-07-27T05:06:43Z

PR: kern/99903

Convert sk(4) to use the new bus_alloc_resources() API and

2006-07-19T04:12:59Z

bus_{read,write}_* macros. Submitted by: Antoine Brodin Reviewed by: imp (initial version)

Re-wrok PHY setup, media handling and dual-port detection.

2006-05-15T04:50:33Z

With this change SysKonnect SK-9521 v2.0 and SK-9821 v2.0 adapter now works. Obtained from: OpenBSD Reported by: Ganbold ganbold ! micom ( mng $ net Tested by: Ganbold ganbold ! micom ( mng $ net

Type.

2006-05-02T02:12:42Z

Submitted by: brad@OpenBSD

Add some incomplete support for Marvell Yukon EC controllers based on

2006-04-28T03:17:37Z

OpenBSD changes. With these changes, PHY part of the driver becomes functional (it senses media changes and negotiates speed just fine), previously it just hang with no PHY message, but no data goes through interface (error message is "can not stop transfer of Tx/Rx descriptor). Hopefully somebody with more clue/free time will be able to pick up after me.

Bring busdmafied sk(4) to all architectures.

2006-04-27T05:59:09Z

- MPSAFE. No more recursive lock required. - bus_dma(9) conversion. I think it should work on all architectures. - optimized Rx handler for each normal and jumbo frames. Previously sk(4) used jumbo frame management code to handle normal sized frames. As the handler needs an additional lock to protect jumbo frame management structure from races, it used two lock operations for each received packet. Now sk(4) uses single lock operation for normal frame.(Jumbo frame still needs two lock operations as before.) The hardware supports DMA scatter operations for Rx descriptors such that it's possible to take advantagee of m_cljget(9) for jumbo frames. However, due to a unknown reasons it resulted in poor performance on sparc64. So I dropped m_cljget(9) approach. This should be revisited since it would reduce one lock operation for jumbo frame handling. - Tx TCP/Rx IP checksum offload support. According to the data sheet of SK-NET GENESIS the hardware supports Rx IP/TCP/UDP offload. But I couldn't make it work on my Yukon hardware. So Rx TCP/UDP was disabled at the moment. It seems that newer Yukon chips can support Tx UDP checksum offload too. But I need more documentation first. - Added more wait time in reading VPD data. It seems that ASUS LOM takes a very long time to respond VPD read signal. - Added an additional lock for MII register access callbacks. - Added more strict received packet validation routine. Previously it passed corrupted packets to upper layers under certain conditions. - A new function sk_yukon_tick() to handle auto-negotiation properly. - Interrupt handler now checks shared interrupt source and protects the interrupt handler from NULL pointer dereference which was caused by odd status word value. The status word can returns 0xffffffff if cable is unplugged while Rx/Tx/auto-negotiation is in progress. - suspend/resume support(not tested). - Added Rx/Tx FIFO flush routine for Yukon - Activate Tx descriptor poll timer in order to protect possible loss of SK_TXBMU_TX_START command. Previously the driver continuously issued SK_TXBMU_TX_START when it notices pending Tx descriptors not processed yet in interrupt handler. That approach would add additional PCI write access overhead under high Tx load situations and it might fail if the first SK_TXBMU_TX_START was lost and no interrupt is generated from the first SK_TXBMU_TX_START command. - s/printf/if_printf/, s/printf/device_printf/, Axe sk_unit in softc. - Setting multicast/station address is now safe on strict-alignment architectures. - Fix long standing bug in VLAN header length setup. - Added/corrected register definitions for Yukon. (Register information from Linux skge driver.) - Added Rx status definition for Marvell Yukon/XaQti XMAC. (Rx status register information from Linux skge driver.) - Update if_oerrors if we encounter watchdog error. - callout(9) conversion Special thanks to jkim who let me know RX status differences between Yukon and XaQti XMAC. It seems that there is still occasional watchdog timeout error but I couldn't reproduce it and need more information to analyze it from users. Tested by: bz(amd64), me(i386, sparc64), current ML Frank Behrens frank ! pinky ( sax $ de