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authorMohammed Hawari <mohammed@hawari.fr>2021-03-18 12:02:08 +0100
committerFlorin Coras <florin.coras@gmail.com>2021-03-18 16:35:32 +0000
commit34c54dff5c66f9a4aef77daf08219301e15cc1fa (patch)
tree622dcfcedbd679e4ffed8278713374c7e2183f8b /src/plugins/dpdk/device/dpdk.h
parentaa7a2a1f32c9a91ea1ba04aa661b6ccddac2a79f (diff)
dpdk: don't mask interrupts for some drivers
It is well known that for some NICs, masking interrupts results in delaying desc writebacks, which breaks poll mode. This fix introduces an "int-unmaskable" dpdk device flag to identify such devices (typically Intel FVL). For such devices, interrupts are masked by a call to file_update(...,UNIX_FILE_UPDATE_DELETE) instead of rte_eth_dev_rx_intr_disable (...) Change-Id: Ifbc701aebe8572319b7aae19382bd683a47fc3cf Type: fix Fixes: 19ff0c3699342b512c03362b3815df684a661f49 Signed-off-by: Mohammed Hawari <mohammed@hawari.fr>
Diffstat (limited to 'src/plugins/dpdk/device/dpdk.h')
-rw-r--r--src/plugins/dpdk/device/dpdk.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/dpdk/device/dpdk.h b/src/plugins/dpdk/device/dpdk.h
index e63b2b7c56b..5d326983df1 100644
--- a/src/plugins/dpdk/device/dpdk.h
+++ b/src/plugins/dpdk/device/dpdk.h
@@ -139,7 +139,8 @@ typedef uint16_t dpdk_portid_t;
_ (10, INTEL_PHDR_CKSUM, "intel-phdr-cksum") \
_ (11, RX_FLOW_OFFLOAD, "rx-flow-offload") \
_ (12, RX_IP4_CKSUM, "rx-ip4-cksum") \
- _ (13, INT_SUPPORTED, "int-supported")
+ _ (13, INT_SUPPORTED, "int-supported") \
+ _ (14, INT_UNMASKABLE, "int-unmaskable")
enum
{