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15 Commits

Author SHA1 Message Date
Tim Kientzle
d7631c7111 Shuffle the TX underrun to work the same way as the RX underrun, 
as suggested by YongHyeon PYUN.
 2013-01-05 20:37:40 +00:00
Tim Kientzle
ebc4238eea While trying to track down the root cause for 
TX stalls in this driver, I've also had some
time to evaluate the effectiveness of different
watchdog strategies.

This is the latest attempt, which consolidates
all of the watchdog logic in one place and
consistently detects TX stalls and resets within
a couple of seconds.
 2013-01-05 17:59:44 +00:00
Tim Kientzle
5bf325556b Overhauled CPSW driver for TI CPSW Ethernet module 
(as used in AM335x SoC for BeagleBone).

Among other things:
 * Watchdog reset doesn't hang the driver.
 * Disconnecting cable doesn't hang the driver.
 * ifconfig up/down doesn't hang the driver
 * Out-of-memory no longer panics the driver.

Known issues:
 * Doesn't have good support for fragmented packets
   (calls m_defrag() on TX, assumes RX packets are never fragmented)
 * Promisc and allmulti still unimplimented
 * addmulti and delmulti still unimplemented
 * TX queue still stalls (but watchdog now consistently recovers in ~5s)
 * No sysctl monitoring
 * Only supports port0
 * No switch configuration support
 * Not tested on anything but BeagleBone

Committed from: BeagleBone
 2013-01-01 18:55:04 +00:00
Gleb Smirnoff
eb1b1807af Mechanically substitute flags from historic mbuf allocator with 
malloc(9) flags within sys.

Exceptions:

- sys/contrib not touched
- sys/mbuf.h edited manually
 2012-12-05 08:04:20 +00:00
Tim Kientzle
5daf64fb7d Do proper padding of runt packets using code copied from bge(4). 
Reviewed by:	gnn
 2012-10-25 04:37:47 +00:00
Tim Kientzle
ea4597d0ab Refer to headers locally. This makes it a lot easier 
to build this driver out-of-tree.
 2012-10-25 04:33:47 +00:00
Tim Kientzle
747d299f0a Don't repeat the POSTREAD dma sync. 2012-10-22 02:28:48 +00:00
Tim Kientzle
da44817ee6 Replace deprecated M_DONTWAIT with M_NOWAIT. 2012-10-19 05:50:56 +00:00
Tim Kientzle
83e5430018 Fix an mbuf leak in cpsw driver, clean up mbuf management: 
* Record TX mbufs when we get them so we can release them.
 * Set TX/RX mbuf slots to NULL when we are no longer responsible for them
 * Move dma sync on RX into RX intr routine
 2012-10-15 04:10:49 +00:00
Tim Kientzle
2e88f5cd34 Cut-and-paste dropped semicolon. 2012-10-14 23:07:54 +00:00
Tim Kientzle
4cc21ce89a Name cpsw_stop to cpsw_stop_locked consistently with other functions 
in this file that assume locks are already held.
 2012-10-14 23:00:24 +00:00
Tim Kientzle
a97afde093 Return correct packet size. 2012-10-14 22:58:12 +00:00
John-Mark Gurney
2b539bdcb3 remove some unnecessary debugging statements, dead code and incorrect 
comment...

Reviewed by:	gnn, imp
 2012-09-16 19:42:27 +00:00
Tim Kientzle
0be65db279 Correctly fetch the MAC address. 
Break down the bytes directly into the softc;
the intermediate buffer isn't needed here.
Break down the bytes in the correct order.
 2012-08-27 04:43:30 +00:00
Oleksandr Tymoshenko
e53470fee3 Merging of projects/armv6, part 10 
- Support for Texas Instruments SoCs:
	- AM335x
	- OMAP4

- Kernel configs, DTS for Beaglebone and Pandaboard

Submitted by:	Ben Gray, Damjan Marion
 2012-08-15 06:31:32 +00:00