freebsd kernel with SKQ
919133a8ef
- 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 |
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| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| ObsoleteFiles.inc | ||
| README | ||
| UPDATING | ||
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information). The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. The ``buildkernel'' and ``installkernel'' targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process, documentation for which can be found at: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you might need to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/<arch>/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- bin System/user commands. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberos5 Kerberos5 (Heimdal) package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. rescue Build system for statically linked /rescue utilities. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html