With the patch applied the number of instruction events is 1% less and
number of mispredicted branch events is 5% less under multistream TCP
traffic load close to line rate.
Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)
Lock name should include interface name.
Tx queue and event queue lock name should include queue number.
Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)
Allow access to statistics data not only from sysctl handlers.
Submitted by: Boris Misenov <Boris.Misenov at oktetlabs.ru>
Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)
sfxge_dma_alloc() calls bus_dmamem_alloc() with BUS_DMA_ZERO flag, so
allocated memory is already filled in by zeros
Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)
Remove trailing whitespaces and tabs.
Enclose value in return statements in parentheses.
Use tabs after #define.
Do not skip comparison with 0/NULL in boolean expressions.
Submitted by: Andrew Rybchenko <arybchenko at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
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.
MFC after: 2 weeks
functions instead of using the IF_ADDR_LOCK directly. The wrapper
functions are the supported interface for device drivers.
Reviewed by: bz, philip
MFC after: 1 week
This field is supposed to be set to the interface bit rate, but for some
reason I thought it was denominated in kilobits. Multiply the values up
accordingly, taking care to saturate rather than overflow on 32-bit
architectures.
Submitted by: Ben Hutchings <bwh -at- solarflare.com>
MFC after: 3 weeks
based on Solarflare SFC9000 family controllers. The driver supports jumbo
frames, transmit/receive checksum offload, TCP Segmentation Offload (TSO),
Large Receive Offload (LRO), VLAN checksum offload, VLAN TSO, and Receive Side
Scaling (RSS) using MSI-X interrupts.
This work was sponsored by Solarflare Communications, Inc.
My sincere thanks to Ben Hutchings for doing a lot of the hard work!
Sponsored by: Solarflare Communications, Inc.
MFC after: 3 weeks
