* [PATCHv5 net-next 0/4] sunvnet: NAPI enhancements.
@ 2014-10-22 22:12 Sowmini Varadhan
0 siblings, 0 replies; only message in thread
From: Sowmini Varadhan @ 2014-10-22 22:12 UTC (permalink / raw)
To: davem, bob.picco, sowmini.varadhan, dwight.engen,
raghuram.kothakota, david.stevens
Cc: netdev, sparclinux
This patchset converts the sunvnet driver to use the NAPI framework.
Changes since v4 to (Patch 1):
vnet_event accumulates LDC_EVENT_* bits into rx_event.
vnet_event_napi() unrolls send_events() logic to process all rx_event bits.
(Mail Subject of cover-letter changed, to keep it distinct from
subject of patch 1)
Patch 1 in the series addresses the packet-receive path- all
the vnet_event() processing is moved into NAPI context.
This patch is dependant on the sparc-next commit:
"sparc64: Add vio_set_intr() to enable/disable Rx interrupts"
(sparc commit id ca605b7dd740c8909408d67911d8ddd272c2b320)
Patch 2 uses RCU to fix race conditions between vnet_port_remove and
paths that access/modify port-related state, such as vnet_start_xmit.
Patch 3 and Patch 4 in the series leverage from the NAPIfied Rx path,
dropping superfluous usage of the irqsave/irqrestores on the vio.lock
where possible.
Note: Patch 3 contains changes that target sparc-next, Patch 4 targets
net-next.
Sowmini Varadhan (4):
NAPIfy sunvnet
Use RCU to synchronize port usage with vnet_port_remove()
Avoid irqsave/restore on vio.lock if in_softirq()
Remove irqsave/irqrestore on vio.lock
arch/sparc/kernel/viohs.c | 8 +-
drivers/net/ethernet/sun/sunvnet.c | 265 +++++++++++++++++++++++--------------
drivers/net/ethernet/sun/sunvnet.h | 6 +-
3 files changed, 179 insertions(+), 100 deletions(-)
--
1.8.4.2
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2014-10-22 22:12 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-10-22 22:12 [PATCHv5 net-next 0/4] sunvnet: NAPI enhancements Sowmini Varadhan
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).