gnn 59b23c2313 MFC: 263302, 264461, 264772
263302:
 fix mbuf leak if it does not fit in software queue

 264461:
 Commit various fixes for the SolarFlare drivers, in particular
 this set of patches fixes support for systems with > 32 cores.

 Details include

 sfxge: RXQ index (not label) comes from FW in flush done/failed events

 Change the second argument name of the efx_rxq_flush_done_ev_t and
 efx_rxq_flush_failed_ev_t prototypes to highlight that RXQ index (not label)
 comes from FW in flush done and failed events.

 sfxge: TXQ index (not label) comes from FW in flush done event

 Change the second argument name of the efx_txq_flush_done_ev_t prototype to
 highlight that TXQ index (not label) comes from FW in flush done event.

 sfxge: use TXQ type as label to support more than 32 TXQs

 There are 3 TXQs in event queue 0 and 1 TXQ (with TCP/UDP checksum offload)
 in all other event queues.

 264772:
 Check that port is started when MAC filter is set

 The MAC filter set may be called without softc_lock held in the case of
 SIOCADDMULTI and SIOCDELMULTI ioctls. The ioctl handler checks IFF_DRV_RUNNING
 flag which implies port started, but it is not guaranteed to remain.
 softc_lock shared lock can't be held in the case of these ioctls processing,
 since it results in failure where kernel complains that non-sleepable
 lock is held in sleeping thread.

 Both problems are repeatable on LAG with LACP proto bring up.

Submitted by:	Andrew Rybchenko <Andrew.Rybchenko at oktetlabs.ru>
Sponsored by:   Solarflare Communications, Inc.
2014-05-11 17:18:09 +00:00
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