linux/drivers/net/ethernet/sfc
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
..
Kconfig sfc: Minimal support for 40G link speed 2013-09-05 22:32:57 +01:00
Makefile sfc: Add support for Solarflare SFC9100 family 2013-08-29 19:19:29 +01:00
bitfield.h sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
ef10.c sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
ef10_regs.h sfc: Remove unused definitions of EF10 user-mode DMA descriptors 2014-02-12 17:53:34 -05:00
efx.c sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
efx.h sfc: Update product naming 2014-02-12 17:53:35 -05:00
enum.h sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
ethtool.c sfc: Use ether_addr_copy and eth_broadcast_addr 2014-03-10 13:53:37 -04:00
falcon.c sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
falcon_boards.c sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
farch.c sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
farch_regs.h sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
filter.h sfc: Use ether_addr_copy and eth_broadcast_addr 2014-03-10 13:53:37 -04:00
io.h sfc: Allocate and link PIO buffers; map them with write-combining 2013-09-20 19:31:49 +01:00
mcdi.c sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
mcdi.h sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
mcdi_mon.c sfc: Add new sensor names 2013-12-12 22:06:54 +00:00
mcdi_pcol.h sfc: Update MCDI protocol definitions 2013-12-06 22:29:20 +00:00
mcdi_port.c sfc: Use ether_addr_copy and eth_broadcast_addr 2014-03-10 13:53:37 -04:00
mdio_10g.c sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
mdio_10g.h sfc: Remove extern from function prototypes 2013-09-24 12:52:53 -07:00
mtd.c sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
net_driver.h sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
nic.c sfc: Add/remove blank lines to taste 2014-02-12 17:53:35 -05:00
nic.h sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
phy.h sfc: Remove extern from function prototypes 2013-09-24 12:52:53 -07:00
ptp.c ptp: drivers: set the number of programmable pins. 2014-03-21 14:21:14 -04:00
qt202x_phy.c sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
rx.c net: sfc calls skb_set_hash 2013-12-18 15:00:53 -05:00
selftest.c sfc: Use ether_addr_copy and eth_broadcast_addr 2014-03-10 13:53:37 -04:00
selftest.h sfc: Add MC BISTs to ethtool offline self test on EF10 2013-12-12 22:05:48 +00:00
siena.c sfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) 2014-04-16 14:33:57 -04:00
siena_sriov.c sfc: Use ether_addr_copy and eth_broadcast_addr 2014-03-10 13:53:37 -04:00
tenxpress.c sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
tx.c sfc: Rename 'use_options' variable in tso_start() to clearer 'use_opt_desc' 2014-02-12 17:53:35 -05:00
txc43128_phy.c sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
vfdi.h sfc: Update copyright banners 2013-08-29 23:34:51 +01:00
workarounds.h sfc: Update copyright banners 2013-08-29 23:34:51 +01:00