The git commit 7c5026aa9b ("tg3: Add
link state reporting to UMP firmware") introduced code that waits for
previous firmware events to be serviced before attempting to submit a
new event. Unfortunately that patch contained a bug that cause the
driver to wait 2.5 seconds, rather than 2.5 milliseconds as intended.
This patch fixes that bug.
This bug revealed that not all firmware versions service driver events
though. Since we do not know which versions of the firmware do and don't
service these events, the driver needs some way to minimize the effects
of the delay. This patch solves the problem by recording a jiffies
timestamp when it submits an event to the hardware. If the jiffies
counter shows that 2.5 milliseconds have already passed, a wait is not
needed and the driver can proceed to submit a new event.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ENABLE_ASF flag is set when DASH is enabled on the NIC, but DASH
does not run on the RX CPU. Instead it runs on the APE.
Consequently, the driver does not need to send "driver alive" updates
to the RX CPU when the APE is present.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Broadcom's DASH (Desktop and mobile Architecture for System Hardware)
implementation requires that the driver preserve particular register
settings. If the driver does not preserve them, communication with
the DASH firmware will be lost.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recently, more status bits have been added to the APE status register.
This patch refines the status register check so that the driver can
send more events than it would have otherwise.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the driver resets the chip while the APE is performing a register
access, that register access will never complete and the APE will hang
indefinitely. To prevent this race condition, the driver must acquire
an APE mutex before resetting the chip. The APE will not attempt a
register access until it acquires this lock.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In certain cases when ASF or other management firmware is running, the
chip may be configured to always strip out the VLAN tag even when
VLAN acceleration is not enabled. This causes some VLAN tagged
packets to be received by the host stack without any knowledge that
the original packet was VLAN tagged.
We fix this by re-inserting the VLAN tag into the packet when necessary.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should now be checking BNX2_FLAG_CAN_KEEP_VLAN to determine how
to set the VLAN rx tagging in the RX_MODE register.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a pair of nasty locking problems in the ax88796 driver
spotted by a sparse check:
warning: context imbalance in 'ax_get_settings' - wrong count at exit
warning: context imbalance in 'ax_set_settings' - wrong count at exit
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
After some cleanups in arch/mips area, now MACH_TX49XX is selected for
both TOSHIBA_RBTX4927 and TOSHIBA_RBTX4938. Fold these two conditions
to one.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Move the Kconfig for the new "Option" driver so it's not in the
middle of the usbnet-based drivers, so the dependency displays
in the Kconfig user interfaces don't get trashed.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The references on ttyHSx devices were not decremented correctly when
the tty was closed. The helper freeing the serial devices was never
called because of that, and the module left some dangling sysfs
devices after being unloaded.
Signed-off-by: Olivier Blin <blino@mandriva.com>
Cc: Jari Tenhunen <jari.tenhunen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The tty may be closed already when the read/write callbacks are called.
This patch checks that the ttys still exist before waking them up.
Signed-off-by: Olivier Blin <blino@mandriva.com>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Jari Tenhunen <jari.tenhunen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
There doesn't seem to be a compelling reason why atl1e_setup_mac_ctrl()
is marked as "inline":
It's not used in any place where speed would matter much, and as long as
it has only one caller non-ancient gcc versions anyway inline it
automatically.
This patch fixes the following compile error with gcc 3.4:
<-- snip -->
...
CC drivers/net/atl1e/atl1e_main.o
atl1e_main.c: In function `atl1e_check_link':
atl1e_main.c:50: sorry, unimplemented: inlining failed in call to
atl1e_main.c:196: sorry, unimplemented: called from here
make[4]: *** [drivers/net/atl1e/atl1e_main.o] Error 1
<-- snip -->
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Mark interrupt scheme in very old firmware incompatible. Interrupt mask
and status registers are per pci function / port.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
NX3031 does not require driver to kill dma watchdog.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Re-read link status in dev open(). Schedule link watchdog only
if dev is up.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Free up rx ring during driver unload or open() failure.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
For NX3031 mac addr should be read from firmware. mac addr in flash
is still valid, but can be overridden by firmware if running in
virtualization environment.
For old revisions, mac addr is retrieved directly from flash.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Matt Carlson
Michael Chan
David S. Miller
Ben Dooks
roel kluin
Atsushi Nemoto
David Brownell
Greg Kroah-Hartman
Olivier Blin
Adrian Bunk
Dhananjay Phadke