Linux PCI Device Lead

SEMI LEAF

0 years

0 Lacs

hyderabad telangana india

Posted:1 week ago| Platform:

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Skills Required

linux development drive design maintenance subsystems enumeration configuration power management support enablement network storage architecture dma optimization analyze latency compliance perf collaboration interface programming debugging gdb dmesg virtualization

Work Mode

On-site

Job Type

Full Time

Job Description

Drive design, development, and maintenance of PCI and PCIe subsystems and drivers in the Linux kernel.
Ensure seamless enumeration, configuration, power management, and hotplug support for PCI Enablement and Bring-up :
Lead platform bring-up activities involving PCI/PCIe devices (e.g., network, storage, GPU, NVMe).
Validate and debug device-tree or ACPI configurations for PCI host bridges and and Firmware Interaction :
Collaborate with firmware/bootloader teams for correct BAR, MSI/MSI-X, and IOMMU configurations.
Work closely with architecture teams to support secure boot and DMA protection for PCI and Power Optimization :
Analyze PCI bandwidth, latency, and power bottlenecks.
Implement ASPM, LTR, and other low-power states in compliance with PCIe and Issue Resolution :
Use Linux tools (lspci, setpci, tracepoints, ftrace, perf, etc.) and oscilloscopes/analyzers for low-level debugging.
Root-cause platform PCI failures and compatibility issues across hardware and kernel and Compliance :
Contribute patches upstream to the Linux kernel PCI subsystem.
Ensure compliance with PCI-SIG and Linux kernel community best Collaboration :
Interface with SoC, BIOS/UEFI, board, and validation teams to ensure robust PCIe device support across Expertise :
Deep understanding of Linux kernel internals, especially drivers/pci and subsystems like hotplug, MSI, IOMMU, DMA API.
Hands-on experience with PCIe Gen3/Gen4/Gen5 devices and related PHY bring-up issues.
Familiarity with ARM64 and x86 architectures, DT/ACPI handling for PCI devices.
Proficient in C programming, Linux kernel debugging (GDB, crash dumps), and tools like dmesg, lspci, pcie_check.
Expertise in power management (runtime, suspend/resume flows) for PCI devices.
Experience with Secure Boot, TrustZone, and virtualization passthrough (VFIO/SR-IOV) for PCIe devices is a strong plus.
Experience using Yocto, Buildroot, or other embedded Linux build systems.

(ref:hirist.tech)

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