src/sys/dev/vxge, branch stable/9

MFC r228478, r263710, r273377, r273378, r273423, r273455 and r273899:

2014-10-31T18:18:04Z

- Reimplement CTASSERT() using _Static_assert(). - De-vnet hash sizes and hash masks. - Fix multiple issues related to arguments passed to SYSCTL macros. Sponsored by: Mellanox Technologies

MFC r254122, r254123, r256116, r255970, r247671, r269861, r268314, r256269,

2014-10-30T15:41:25Z

r255969, r256179, r230135, r254121, r255932, r255972, r255973, r256281, r256470, r257867, r259608, r269862, r271127, r272407, r257864, r256682, r258276, r254734, r247675, r254735 and r272683: Hardware driver update from Mellanox Technologies, including: - improved performance - better stability - new features - bugfixes Supported HCAs: - ConnectX-2 - ConnectX-3 - ConnectX-3 Pro NOTE: - TSO feature needs r271946, which is not yet merged. Sponsored by: Mellanox Technologies

MFC r251862 (by pluknet):

2014-03-20T20:33:18Z

Clean up -Wheader-guard warnings. Submitted by:

MFC r260056:

2014-01-04T21:23:49Z

In sys/dev/vxge/vxgehal/vxgehal-ring.c, #if 0 an unused static function.

MFC: r243857 (partial)

2013-03-09T00:39:54Z

Mechanically substitute flags from historic mbuf allocator with malloc(9) flags in sys/dev.

Merge r241037 from head:

2012-11-23T11:19:43Z

The drbr(9) API appeared to be so unclear, that most drivers in tree used it incorrectly, which lead to inaccurate overrated if_obytes accounting. The drbr(9) used to update ifnet stats on drbr_enqueue(), which is not accurate since enqueuing doesn't imply successful processing by driver. Dequeuing neither mean that. Most drivers also called drbr_stats_update() which did accounting again, leading to doubled if_obytes statistics. And in case of severe transmitting, when a packet could be several times enqueued and dequeued it could have been accounted several times. o Thus, make drbr(9) API thinner. Now drbr(9) merely chooses between ALTQ queueing or buf_ring(9) queueing. - It doesn't touch the buf_ring stats any more. - It doesn't touch ifnet stats anymore. - drbr_stats_update() no longer exists. o buf_ring(9) handles its stats itself: - It handles br_drops itself. - br_prod_bytes stats are dropped. Rationale: no one ever reads them but update of a common counter on every packet negatively affects performance due to excessive cache invalidation. - buf_ring_enqueue_bytes() reduced to buf_ring_enqueue(), since we no longer account bytes. o Drivers handle their stats theirselves: if_obytes, if_omcasts. o mlx4(4), igb(4), em(4), vxge(4), oce(4) and ixv(4) no longer use drbr_stats_update(), and update ifnet stats theirselves. o bxe(4) was the most correct driver, it didn't call drbr_stats_update(), thus it was the only driver accurate under moderate load. Now it also maintains stats itself. o ixgbe(4) had already taken stats from hardware, so just - drop software stats updating. - take multicast packet count from hardware as well. o mxge(4) just no longer needs NO_SLOW_STATS define. o cxgb(4), cxgbe(4) need no change, since they obtain stats from hardware. Reviewed by: jfv, gnn

MFC r240520:

2012-09-17T00:47:35Z

s/teh/the/g Approved by: cperciva (implicit)

MFC r236377:

2012-06-06T06:32:50Z

Fix bug revealed by warning generated by clang: warning: equality comparison with extraneous parentheses [-Wparentheses-equality] Approved by: cperciva (implicit)

MFC r227458, r226436:

2012-01-04T03:37:41Z

- change "is is" to "is" or "it is" - change "the the" to "the" - other typo fixes Approved by: lstewart

MFC r228443:

2011-12-31T20:42:34Z

Do not define bool/true/false if the symbols already exist.