freebsd with flexible iflib nic queues
d0d5832ac7
changes is that there's now a Solaris port of this driver, so some things in the core version had to change (not much, but some). In order, from the top.....: A lot of error strings are gathered in one place at the head of the file. This caused me to rewrite them to look consistent (with respect to things like 'Port 0x%' and 'Target %d' and 'Loop ID 0x%x'. The major mailbox function, isp_mboxcmd, now takes a third argument, which is a mask that selectively says whether mailbox command failures will be logged. This will substantially reduce a lot of spurious noise from the driver. At the first run through isp_reset we used to try and get the current running firmware's revision by issuing a mailbox command. This would invariably fail on alpha's with anything but a Qlogic 1040 since SRM doesn't *start* the f/w on these cards. Instead, we now see whether we're sitting ROM state before trying to get a running BIOS loaded f/w version. All CFGPRINTF/PRINTF/IDPRINTF macros have been replaced with calls to isp_prt. There are seperate print levels that can be independently set (see ispvar.h), which include debugging, etc. All SYS_DELAY macros are now USEC_DELAY macros. RQUEST_QUEUE_LEN and RESULT_QUEUE_LEN now take ispsoftc as a parameter- the Fibre Channel cards and the Ultra2/Ultra3 cards can have 16 bit request queue entry indices, so we can make a 1024 entry index for them instead of the 256 entries we've had until now. A major change it to fix isp_fclink_test to actually only wait the delay of time specified in the microsecond argument being passed. The problem has always been that a call to isp_mboxcmd to get he current firmware state takes an unknown (sometimes long) amount of time- this is if the firmware is busy doing PLOGIs while we ask it what's up. So, up until now, the usdelay argument has been a joke. The net effect has been that if you boot without being plugged into a good loop or into a switch, you hang. Massively annonying, and hard to fix because the actual time delta was impossible to know from just guessing. Now, using the new GET_NANOTIME macros, a precise and measured amount of USEC_DELAY calls are done so that only the specified usecdelay is allowed to pass. This means that if the initial startup of the firmware if followed by a call from isp_freebsd.c:isp_attach to isp_control(isp, ISP_FCLINK_TEST, &tdelay) where tdelay is 2 * 1000000, no more than two seconds will actually elapse before we leave concluding that the cable is unhooked. Jeez. About time.... Change the ispscsicmd entry point to isp_start, and the XS_CMD_DONE macro to a call to the platform supplied isp_done (sane naming). Limit our size of request queue completions we'll look at at interrupt time. Since we've increased the size of the Request Queue (and the size of the Response Queue proportionally), let's not create an interrupt stack overflow by having to keep a max completion list (forw links are not an option because this is common code with some platforms that don't have link space in their XS_T structures). A limit of 32 is not unreasonable- I doubt there'd be even this many request queue completions at a time- remember, most boards now use fast posting for normal command completion instead of filling out response queue entries. In the isp_mboxcmd cleanup, also create an array of command names so that "ABOUT FIRMWARE" can be printed instead of "CMD #8". Remove the isp_lostcmd function- it's been deprecated for a while. Remove isp_dumpregs- the ISP_DUMPREGS goes to the specific bus register dump fucntion. Various other cleanups. |
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| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| kerberosIV | ||
| lib | ||
| libexec | ||
| release | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.upgrade | ||
| 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/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 have to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/i386/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. kerberosIV Kerberos package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. sbin System commands. secure DES and DES-related utilities - NOT FOR EXPORT! 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/handbook/synching.html