Commit Graph

16 Commits

Author SHA1 Message Date
Rafal Jaworowski
d1d3233ebd Convert Freescale PowerPC platforms to FDT convention.
The following systems are affected:

  - MPC8555CDS
  - MPC8572DS

This overhaul covers the following major changes:

  - All integrated peripherals drivers for Freescale MPC85XX SoC, which are
    currently in the FreeBSD source tree are reworked and adjusted so they
    derive config data out of the device tree blob (instead of hard coded /
    tabelarized values).

  - This includes: LBC, PCI / PCI-Express, I2C, DS1553, OpenPIC, TSEC, SEC,
    QUICC, UART, CFI.

  - Thanks to the common FDT infrastrucutre (fdtbus, simplebus) we retire
    ocpbus(4) driver, which was based on hard-coded config data.

Note that world for these platforms has to be built WITH_FDT.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-07-11 21:08:29 +00:00
Rafal Jaworowski
04311706d0 tsec: Use IFQ_DRV macros for managing interface packet queue.
This lets tsec(4) work with ALTQ.

Submitted by:	Marcin Ligenza
MFC after:	1 week
2009-11-20 13:28:06 +00:00
Robert Watson
eb956cd041 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs.  This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.

For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.

Approved by:	re (kib)
MFC after:	6 weeks
2009-06-26 11:45:06 +00:00
Rafal Jaworowski
661ee6eea5 Fix Book-E/MPC85XX build. Some prototypes were wrong and got revealed with
the recent kobj signature checking.
2009-06-13 08:57:04 +00:00
Attilio Rao
1abcdbd127 When user_frac in the polling subsystem is low it is going to busy the
CPU for too long period than necessary.  Additively, interfaces are kept
polled (in the tick) even if no more packets are available.
In order to avoid such situations a new generic mechanism can be
implemented in proactive way, keeping track of the time spent on any
packet and fragmenting the time for any tick, stopping the processing
as soon as possible.

In order to implement such mechanism, the polling handler needs to
change, returning the number of packets processed.
While the intended logic is not part of this patch, the polling KPI is
broken by this commit, adding an int return value and the new flag
IFCAP_POLLING_NOCOUNT (which will signal that the return value is
meaningless for the installed handler and checking should be skipped).

Bump __FreeBSD_version in order to signal such situation.

Reviewed by:	emaste
Sponsored by:	Sandvine Incorporated
2009-05-30 15:14:44 +00:00
Rafal Jaworowski
fb20e2aeac tsec(4) cosmetics. 2009-02-17 16:02:45 +00:00
Rafal Jaworowski
371bf7cc81 tsec(4): Always try to resume the receiver.
This helps recover from RX stall under heavy loads.

Submitted by:	Piotr Ziecik kosmo ! semihalf dot com
2009-02-17 15:59:27 +00:00
Rafal Jaworowski
0390701af8 tsec(4): do not clear interrupt events register before use.
Prior to this fix, IEVENT register was always cleared before calling
tsec_error_intr_locked(), which prevented error recovery actions from
happening with polling enabled (and could lead to serious problems, including
controller hang).

Submitted by:	Marcin Ligenza marcinl ! pacomp dot com dot pl
2009-02-17 15:47:13 +00:00
Rafal Jaworowski
ab160495d3 Handle mbuf exhaustion scenario in tsec(4).
Without this fix the system would hang under heavy networking load.

Submitted by:	Leon Theunissen leon ! parsec dot co dot za
2009-02-17 15:39:16 +00:00
Rafal Jaworowski
64f90c9dff tsec(4) style improvements and clean-up. 2009-02-17 14:59:47 +00:00
Rafal Jaworowski
bd37530ee4 Additional features for the tsec(4) Ethernet driver.
- interrupt coalescing
  - polling
  - jumbo frames
  - multicast
  - VLAN tagging

The enhanced version of the chip (eTSEC) can also take advantage of:

  - TCP/IP checksum calculation h/w offloading

Obtained from:	Freescale, Semihalf
2009-02-17 14:57:05 +00:00
Rafal Jaworowski
321e12c82e tsec: Refactor driver's structure.
Split the driver into the core functionality part (sys/dev/tsec/if_tsec.c) and
the bus attachment (sys/dev/tsec/if_tsec_ocp.c).

This lets better integrate and maintain the driver in other environments with
different attachment abstractions (there is at least one other FreeBSD port --
MPC83xx -- which uses this TSEC driver, but with different local bus model
i.e. some OF derivative). While there, clean up and fix minor cosmetics.

Obtained from:	Semihalf
2008-08-26 10:41:49 +00:00
Rafal Jaworowski
5432bd9f6a tsec: Improve and clean up callouts.
- eliminate the unused tsec_tick_ch callout
- adjust and fix the main tsec callout handling
- minor naming improvements

Obtained from:	Semihalf
2008-08-26 09:38:28 +00:00
Rafal Jaworowski
772619e186 Convert TSEC watchdog to the new scheme.
Reviewed by:	imp, marcel
Approved by:	cognet (mentor)
2008-03-12 16:35:25 +00:00
Rafal Jaworowski
ecb1ab1761 Obtain TSEC h/w address from the parent bus (OCP) and not rely blindly on what
might be currently programmed into the registers.

Underlying firmware (U-Boot) would typically program MAC address into the
first unit only, and others are left uninitialized. It is now possible to
retrieve and program MAC address for all units properly, provided they were
passed on in the bootinfo metadata.

Reviewed by:	imp, marcel
Approved by:	cognet (mentor)
2008-03-12 16:32:08 +00:00
Rafal Jaworowski
67196661ab Support for Freescale integrated Three-Speed Ethernet Controller (TSEC).
TSEC is the MAC engine offering 10, 100 or 1000 Mbps speed and is found on
different Freescale parts (MPC83xx, MPC85xx). Depending on the silicon version
there are up to four TSEC units integrated on the chip.

This driver also works with the enhanced version of the controller (eTSEC),
which is backwards compatible, but doesn't take advantage of its additional
features (various off-loading mechanisms) at the moment.

Approved by:	cognet (mentor)
Obtained from:	Semihalf
MFp4:		e500
2008-03-03 19:03:44 +00:00