SFG545
0db2ec12c5
This commit introduces a new PCI library and associated tools for inspecting and modifying PCI configuration space via Linux sysfs. The following changes were made: - Implemented `pci.c` and `pci.h` for PCI device management, including enumeration, attribute reading, and configuration space access. - Added `setpci` command-line utility for reading and writing PCI configuration registers, with support for filtering devices by vendor, device, and slot. - Created manual pages for `setpci` to document its usage and options. - Developed test scripts for both `lspci` and `setpci` to ensure functionality and correctness of the new features. These additions enhance the ability to interact with PCI devices, providing a robust framework for device management and configuration.
49 lines
1.4 KiB
Bash
49 lines
1.4 KiB
Bash
#!/bin/sh
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_test_name="lspci"
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. "$(dirname "$0")/harness.sh"
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setup_tmpdir
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LSPCI="$VX lspci"
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echo "Running lspci tests..."
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dev_path="/sys/bus/pci/devices/$(ls /sys/bus/pci/devices | head -n 1)"
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slot="$(basename "$dev_path")"
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short_slot="$(printf '%s' "$slot" | sed 's/^0000://')"
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vendor="$(sed 's/^0x//' "$dev_path/vendor")"
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device="$(sed 's/^0x//' "$dev_path/device")"
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class="$(sed 's/^0x//' "$dev_path/class" | cut -c1-4)"
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out="$($LSPCI | sed -n '1p')"
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if [ -n "$out" ]; then
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pass "basic: lists at least one device"
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else
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fail "basic: lists at least one device" "got empty output"
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fi
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out="$($LSPCI -D -s "$slot")"
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case "$out" in
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"$slot "*) pass "filter: -D preserves domain-qualified slot" ;;
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*) fail "filter: -D preserves domain-qualified slot" "got: $out" ;;
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esac
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out="$($LSPCI -n -s "$short_slot")"
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expected="$short_slot $class: $vendor:$device"
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case "$out" in
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"$expected"*) pass "numeric: -n shows class and ids" ;;
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*) fail "numeric: -n shows class and ids" "expected prefix: $expected, got: $out" ;;
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esac
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out="$($LSPCI -d "$vendor:$device" | sed -n '1p')"
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case "$out" in
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*"$vendor"*|*"$device"*) pass "filter: -d finds matching device" ;;
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"") fail "filter: -d finds matching device" "got empty output" ;;
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*) pass "filter: -d finds matching device" ;;
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esac
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hex_out="$($LSPCI -x -s "$short_slot")"
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printf '%s\n' "$hex_out" > hex.out
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check_grep " 00:" hex.out "hex: emits config dump"
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summary
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