Commit Graph

9 Commits

Author SHA1 Message Date
Edward Cree
99831b1ea5 sfc: remove RESET_TYPE_RX_RECOVERY
It's no longer used now that Falcon is gone.

Also remove a reference in a comment to an ioctl that doesn't exist.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-01 15:39:38 -05:00
Jon Cooper
087e902550 sfc: Change entity reset on MC reboot to a new datapath-only reset.
Currently we do an entity reset when we detect an MC reboot.
This messes up SRIOV because it leaves VFs orphaned. The extra
reset is rather redundant anyway, since the MC reboot will have
basically reset everything.

This change replaces the entity reset after MC reboot with a
simpler datapath reset that reallocates resources but doesn't
perform the entity reset.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21 18:43:54 -04:00
Edward Cree
e283546c04 sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast)
When an MCDI command times out (whether or not we find it
completed when we poll), call efx_mcdi_abandon(), which tells
all subsequent MCDI calls to fail-fast, and queues up an FLR.

Because an FLR doesn't lead to receiving any reboot even from
the MC (unlike most other types of reset), we have to call
efx_ef10_reset_mc_allocations.
In efx_start_all(), if a reset (of any kind) is pending, we
bail out.
Without this, attempts to reconfigure (e.g. change mtu) can
cause driver/mc state inconsistency if the first MCDI call
triggers an FLR.

For similar reasons, on EF10, in
efx_reset_down(method=RESET_TYPE_MCDI_TIMEOUT), set the number
of active queues to zero before calling efx_stop_all().
And, on farch, in efx_reset_up(method=RESET_TYPE_MCDI_TIMEOUT),
set active_queues and flushes pending & outstanding to zero.

efx_mcdi_mode_{poll,event}() should not take us out of fail-fast
 mode. Instead, this is done by efx_mcdi_reset() after the FLR
completes.

The new FLR reset_type RESET_TYPE_MCDI_TIMEOUT doesn't really
fit into the hierarchy of reset 'scopes' whereby efx_reset()
decides some resets subsume others.  Thus, it uses separate logic.

Also, fixed up some inconsistency around RESET_TYPE_MC_BIST,
which was in the wrong place in that hierarchy.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-16 14:33:57 -04:00
Jon Cooper
74cd60a4d7 sfc: Add MC BISTs to ethtool offline self test on EF10
To run BISTs the MC goes down in to a special mode where it will only
respond to MCDI from the testing PF, and TX, RX and event queues are
torn down. Other PFs get a message as it goes down to tell them it's
going down.

When the other PFs get this message, they check the soft status
register to tell when the MC has rebooted after BIST mode and they can
start recovery.

[bwh: Convert the test result to 1 or -1 as for earlier NICs]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-12-12 22:05:48 +00:00
Ben Hutchings
f7a6d2c442 sfc: Update copyright banners
Update the dates for files that have been added to in 2012-2013.
Drop the 'Solarstorm' brand name that's still lingering here.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-08-29 23:34:51 +01:00
Alexandre Rames
3de82b91ea sfc: Add EF10 support for TX/RX DMA error events handling.
Also, since we handle all DMA errors in the same way, merge
RESET_TYPE_(RX|TX)_DESC_FETCH into RESET_TYPE_DMA_ERROR.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-08-27 22:27:10 +01:00
Alexandre Rames
626950db84 sfc: Add AER and EEH support for Siena
The Linux side of EEH is triggered by MMIO reads, but this
driver's data path does not issue any MMIO reads (except in
legacy interrupt mode).  Therefore add a monitor function
to poll EEH periodically.

When preparing to reset the device based on our own error
detection, also poll EEH and defer to its recovery mechanism
if appropriate.

[bwh: Use a separate condition for the initial link poll; fix some
 style errors]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-03-07 20:22:04 +00:00
Ben Hutchings
c2dbab39db sfc: Correct some comments on enum reset_type
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-07-17 16:12:35 +01:00
Jeff Kirsher
874aeea5d0 sfc: Move the Solarflare drivers
Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and
make the necessary Kconfig and Makefile changes.

CC: Steve Hodgson <shodgson@solarflare.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-11 02:33:50 -07:00