b0107e8cf6
There's no point to depend on the nvme driver here, just fetch nvme devices directly from the pci bus. Signed-off-by: Michal Berger <michal.berger@intel.com> Change-Id: If0300a538c24802287bb7c1bb2e2cba66943043f Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16775 Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
97 lines
2.0 KiB
Bash
Executable File
97 lines
2.0 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, BAR4 are 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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[[ $(< /sys/class/dmi/id/chassis_vendor) == QEMU ]] || exit 0
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curdir=$(readlink -f "$(dirname "$0")")
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source "$curdir/common.sh"
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get_bar() {
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echo "0x$(setpci -s "$1" "$2.${3:-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
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local head
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local base_addr2
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local base_addr4
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local bar2 bar3 bar4 bar5
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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=$3
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printf '%s:%s:%s:%s:%s\n' \
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"$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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head=$(get_bar "$dev" 0x0e B)
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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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if ((head != 0)); then
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echo "Wrong haeder type under $dev" >&2
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return 1
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fi
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# QEMU uses 64-bit BARs. If there is no CMB or PMR present, report
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# that to the user and signal failure.
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if ((!(bar2 & 1 << 2) && !(bar4 & 1 << 2))); then
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echo "No CMB|PMR present under $dev" >&2
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return 1
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fi
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if ((bar2 & 1 << 2)); then
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base_addr2=$(((bar2 & ~0xf) + (bar3 << 32)))
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print_info "$bar2" "$base_addr2" cmb
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fi
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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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missing_buf=0
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cache_pci_bus
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for pci in ${pci_bus_cache[0x010802]}; do
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info "$pci" || ((++missing_buf))
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done
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((missing_buf == 0))
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