eb53c23236
per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc) For intel copyrights added, --follow and -C95% were used. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: I2ef86976095b88a9bf5b1003e59f3943cd6bbe4c Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15209 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
84 lines
1.7 KiB
Bash
Executable File
84 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: BSD-3-Clause
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# Copyright (C) 2021 Intel Corporation
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# All rights reserved.
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# We simply check if BAR2 is present as that's where PMR or CMB is
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# meant to be located under qemu. If found, print some stats then exit.
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shopt -s nullglob
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[[ $(uname -s) == Linux ]] || exit 0
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# Use MSR instead?
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[[ $(< /sys/class/dmi/id/chassis_vendor) == QEMU ]] || exit 0
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get_bar() {
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echo "0x$(setpci -s "$1" "$2.L")"
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}
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get_size() {
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local addr=$1
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local start end type
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while IFS="- " read -r start end type; do
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start=0x$start end=0x$end
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if ((start == addr)) && [[ $type == *"$pci"* ]]; then
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printf '0x%08x:0x%08x:0x%08x\n' \
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"$start" "$end" $((end - start + 1))
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return 0
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fi
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done < /proc/iomem
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echo "unknown/unassigned"
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}
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info() {
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local dev=$1
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local pref loc
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local base_addr2
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local base_addr4
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local bar local bar2 bar3 bar4 bar5
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local bar_type2
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pref[0]=non-prefetchable
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pref[1]=prefetchable
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print_info() {
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local bar=$1 base_addr=$2 bar_type=$3
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printf '%s:%s:%s:%s:%s:%s\n' \
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"${nvme##*/}" \
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"$dev" \
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"64-bit" \
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"${pref[bar & 1 << 3 ? 1 : 0]}" \
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"$(get_size "$base_addr")" \
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"$bar_type"
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}
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bar2=$(get_bar "$dev" 0x18)
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bar3=$(get_bar "$dev" 0x1c)
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bar4=$(get_bar "$dev" 0x20)
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bar5=$(get_bar "$dev" 0x24)
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# QEMU uses 64-bit BARs
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if ((bar2 & 1 << 2)); then
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bar_type2=pmr
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if [[ -e $nvme/cmb ]]; then
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bar_type2=cmb
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fi
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base_addr2=$(((bar2 & ~0xf) + (bar3 << 32)))
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print_info "$bar2" "$base_addr2" "$bar_type2"
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fi
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# QEMU uses 64-bit BARs
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if ((bar4 & 1 << 2)); then
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base_addr4=$(((bar4 & ~0xf) + (bar5 << 32)))
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print_info "$bar4" "$base_addr4" pmr
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fi
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}
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for nvme in /sys/class/nvme/nvme*; do
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pci=$(readlink -f "$nvme/device") pci=${pci##*/}
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info "$pci"
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done
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