* [PATCHv4 net-next 0/4] sunvnet: NAPIfy sunvnet
@ 2014-10-21 14:16 Sowmini Varadhan
0 siblings, 0 replies; only message in thread
From: Sowmini Varadhan @ 2014-10-21 14:16 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.
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 commit:
"sparc64: Add vio_set_intr() to enable/disable Rx interrupts"
(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 | 258 +++++++++++++++++++++++--------------
drivers/net/ethernet/sun/sunvnet.h | 6 +-
3 files changed, 173 insertions(+), 99 deletions(-)
--
1.8.4.2
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