Messages in this thread | | | From | Bharat Kumar Gogada <> | Subject | INTMS/INTMC not being used in NVME interrupt handling | Date | Wed, 16 May 2018 12:35:15 +0000 |
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Hi,
As per NVME specification: 7.5.1.1 Host Software Interrupt Handling It is recommended that host software utilize the Interrupt Mask Set and Interrupt Mask Clear (INTMS/INTMC) registers to efficiently handle interrupts when configured to use pin based or MSI messages.
In kernel 4.14, drivers/nvme/host/pci.c function nvme_isr doesn't use these registers.
Any reason why these registers are not used in nvme interrupt handler ?
Why NVMe driver is not using any bottom half and processing all completion queues in interrupt handler ?
Regards, Bharat
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