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authorNetanel Belgazal <netanel@amazon.com>2017-12-28 21:31:30 +0000
committerDavid S. Miller <davem@davemloft.net>2018-01-02 14:35:12 -0500
commit8510e1a3d16c7e4e2b47c9675b18725407c616b7 (patch)
treebb5285244774553c8ea08da5f24a89496d787e73 /drivers/net/ethernet/amazon/ena/ena_regs_defs.h
parentacfbf3ca313edd550f0139fe70509cb3b0b38932 (diff)
net: ena: add detection and recovery mechanism for handling missed/misrouted MSI-X
A mechanism for detection of stuck Rx/Tx rings due to missed or misrouted interrupts. Check if there are unhandled completion descriptors before the first MSI-X interrupt arrived. The check is per queue and per interrupt vector. Once such condition is detected, driver and device reset is scheduled. Signed-off-by: Netanel Belgazal <netanel@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amazon/ena/ena_regs_defs.h')
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_regs_defs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_regs_defs.h b/drivers/net/ethernet/amazon/ena/ena_regs_defs.h
index 9aec43c5bba8..48ca97fbe7bc 100644
--- a/drivers/net/ethernet/amazon/ena/ena_regs_defs.h
+++ b/drivers/net/ethernet/amazon/ena/ena_regs_defs.h
@@ -60,6 +60,8 @@ enum ena_regs_reset_reason_types {
ENA_REGS_RESET_USER_TRIGGER = 12,
ENA_REGS_RESET_GENERIC = 13,
+
+ ENA_REGS_RESET_MISS_INTERRUPT = 14,
};
/* ena_registers offsets */