From: David S. Miller Date: Sat, 25 Oct 2014 20:20:20 +0000 (-0400) Subject: Merge branch 'sunvnet-napi' X-Git-Tag: firefly_0821_release~176^2~2717^2~347 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9286ae01ac7669e1b0a56151a3132804ed82c3d4;p=firefly-linux-kernel-4.4.55.git Merge branch 'sunvnet-napi' Sowmini Varadhan says: ==================== sunvnet: NAPIfy sunvnet This patchset converts the sunvnet driver to use the NAPI framework. Changes since v4 to Patch1: vnet_event accumulates LDC_EVENT_* bits into rx_event. vnet_event_napi() unrolls send_events() logic to process all rx_event bits. Changes since v5: Patch 1: use net_device.h definition for NAPI_POLL_WEIGHT. Drop sparclinux changes (patch3) per David Miller feedback 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 leverages from the NAPIfied Rx path, dropping superfluous usage of the irqsave/irqrestores on the vio.lock where possible. ==================== Signed-off-by: David S. Miller --- 9286ae01ac7669e1b0a56151a3132804ed82c3d4