Vipul Pandya 3069ee9bc4 cxgb4: DB Drop Recovery for RDMA and LLD queues ... recover LLD EQs for DB drop interrupts. This includes adding a new db_lock, a spin lock disabling BH too, used by the recovery thread and the ring_tx_db() paths to allow db drop recovery. Clean up initial DB avoidance code. Add read_eq_indices() - this allows the LLD to use the PCIe mw to efficiently read hw eq contexts. Add cxgb4_sync_txq_pidx() - called by iw_cxgb4 to sync up the sw/hw pidx value. Add flush_eq_cache() and cxgb4_flush_eq_cache(). This allows iw_cxgb4 to flush the sge eq context cache before beginning db drop recovery. Add module parameter, dbfoifo_int_thresh, to allow tuning the db interrupt threshold value. Add dbfifo_int_thresh to cxgb4_lld_info so iw_cxgb4 knows the threshold. Add module parameter, dbfoifo_drain_delay, to allow tuning the amount of time delay between DB FULL and EMPTY upcalls to iw_cxgb4. Signed-off-by: Vipul Pandya <vipul@chelsio.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>		2012-05-18 13:22:28 -07:00
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cxgb	Sweep away N/A fw_version dustbunnies from the .get_drvinfo routine of a number of drivers	2011-11-22 16:43:32 -05:00
cxgb3	cxgb3: Don't call cxgb_vlan_mode until q locks are initialized	2012-04-30 22:08:44 -04:00
cxgb4	cxgb4: DB Drop Recovery for RDMA and LLD queues	2012-05-18 13:22:28 -07:00
cxgb4vf	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-03-09 14:34:20 -08:00
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