linux-toradex.git/drivers/net/tg3.c, branch v3.0.98

tg3: Fix crc errors on jumbo frame receive

2013-02-14T18:47:37+00:00

[ Upstream commit daf3ec688e057f6060fb9bb0819feac7a8bbf45c ]

TG3_PHY_AUXCTL_SMDSP_ENABLE/DISABLE macros do a blind write to the phy
auxiliary control register and overwrite the EXT_PKT_LEN (bit 14) resulting
in intermittent crc errors on jumbo frames with some link partners. Change
the code to do a read/modify/write.

Signed-off-by: Nithin Nayak Sujir 
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Avoid null pointer dereference in tg3_interrupt in netconsole mode

2013-02-14T18:47:37+00:00

[ Upstream commit 9c13cb8bb477a83b9a3c9e5a5478a4e21294a760 ]

When netconsole is enabled, logging messages generated during tg3_open
can result in a null pointer dereference for the uninitialized tg3
status block. Use the irq_sync flag to disable polling in the early
stages. irq_sync is cleared when the driver is enabling interrupts after
all initialization is completed.

Signed-off-by: Nithin Nayak Sujir 
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Apply short DMA frag workaround to 5906

2012-10-21T16:17:11+00:00

commit b7abee6ef888117f92db370620ebf116a38e3f4d upstream.

5906 devices also need the short DMA fragment workaround.  This patch
makes the necessary change.

Signed-off-by: Matt Carlson 
Tested-by: Christian Kujau 
Signed-off-by: David S. Miller 
Signed-off-by: Mike Pagano

tg3: Fix TSO CAP for 5704 devs w / ASF enabled

2012-10-12T20:28:08+00:00

[ Upstream commit cf9ecf4b631f649a964fa611f1a5e8874f2a76db ]

On the earliest TSO capable devices, TSO was accomplished through
firmware.  The TSO cannot coexist with ASF management firmware though.
The tg3 driver determines whether or not ASF is enabled by calling
tg3_get_eeprom_hw_cfg(), which checks a particular bit of NIC memory.
Commit dabc5c670d3f86d15ee4f42ab38ec5bd2682487d, entitled "tg3: Move
TSO_CAPABLE assignment", accidentally moved the code that determines
TSO capabilities earlier than the call to tg3_get_eeprom_hw_cfg().  As a
consequence, the driver was attempting to determine TSO capabilities
before it had all the data it needed to make the decision.

This patch fixes the problem by revisiting and reevaluating the decision
after tg3_get_eeprom_hw_cfg() is called.

Signed-off-by: Matt Carlson 
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Avoid panic from reserved statblk field access

2012-05-21T16:40:00+00:00

[ Upstream commit f891ea1634ce41f5f47ae40d8594809f4cd2ca66 ]

When RSS is enabled, interrupt vector 0 does not receive any rx traffic.
The rx producer index fields for vector 0's status block should be
considered reserved in this case.  This patch changes the code to
respect these reserved fields, which avoids a kernel panic when these
fields take on non-zero values.

Signed-off-by: Matt Carlson 
Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: negate USE_PHYLIB flag check

2011-11-11T17:36:28+00:00

[ Upstream commit e730c82347b9dc75914da998c44c3f348965db41 ]

USE_PHYLIB flag in tg3_remove_one() is being checked incorrectly. This
results tg3_phy_fini->phy_disconnect is never called and when tg3 module
is removed.

In my case this resulted in panics in phy_state_machine calling function
phydev->adjust_link.

So correct this check.

Signed-off-by: Jiri Pirko 
Acked-by: Matt Carlson 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Fix int selftest for recent devices.

2011-10-03T18:40:46+00:00

commit 3aa1cdf87c0b3f2345e75c474acc32ebbf0a4724 upstream.

This patch fixes interrupt selftest failures for recent devices (57765,
5717, 5718. 5719, 5720) by disabling MSI one-shot mode and applying the
status tag workaround to the selftest code.

Signed-off-by: Matt Carlson 
Reviewed-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Add 5719 and 5720 to EEE_CAP list

2011-10-03T18:40:44+00:00

commit 5baa5e9aa28baccd2a1227095c25bb3e999f250d upstream.

This patch adds the 5719 and the 5720 to the list of devices that are
EEE capable.

Signed-off-by: Matt Carlson 
Reviewed-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Fix io failures after chip reset

2011-10-03T18:40:42+00:00

commit 9e975cc291d80d5e4562d6bed15ec171e896d69b upstream.

Commit f2096f94b514d88593355995d5dd276961e88af1, entitled
"tg3: Add 5720 H2BMC support", needed to add code to preserve some bits
set by firmware.  Unfortunately the new code causes throughput to stop
after a chip reset because it enables state machines before they are
ready.  This patch undoes the problematic code.  The bits will be
restored later in the init sequence.

Signed-off-by: Matt Carlson 
Reviewed-by: Michael Chan 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tg3: Fix tg3_skb_error_unmap()

2011-06-03T07:01:30+00:00

This function attempts to free one fragment beyond the number of
fragments that were actually mapped.  This patch brings back the limit
to the correct spot.

Signed-off-by: Matt Carlson 
Tested-by: Alex Williamson 
Signed-off-by: David S. Miller