mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
d17ab6e128
Calling 'nvme scan' followed by 'nvme detail' crashes U-Boot on Turris
Omnia with the following error:
undefined instruction
pc : [<0a000000>] lr : [<7ff80bfc>]
reloc pc : [<8a8c0000>] lr : [<00840bfc>]
sp : 7fb2b908 ip : 0000002a fp : 02000000
r10: 04000000 r9 : 7fb2fed0 r8 : e1000000
r7 : 0c000000 r6 : 03000000 r5 : 06000000 r4 : 01000000
r3 : 7fb30928 r2 : 7fb30928 r1 : 00000000 r0 : 00000000
Flags: nZCv IRQs off FIQs off Mode SVC_32
Code: 0f0fb4f0 0f0fb4f0 0f0fb4f0 0f0fb4f0 (f0f04b0f)
Resetting CPU ...
This happens when nvme_print_info() tries to return to the caller. It
looks like this error is caused by trying to allocate 8 KiB of memory
on the stack by the two uses of ALLOC_CACHE_ALIGN_BUFFER().
Use malloc_cache_aligned() to allocate this memory dynamically instead.
This fixes 'nvme detail' on Turris Omnia.
Note that similar change was applied to file drivers/nvme/nvme.c in past by
commit 2f83481dff
("nvme: use page-aligned buffer for identify command").
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017 NXP Semiconductors
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* Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <memalign.h>
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#include <nvme.h>
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#include "nvme.h"
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static void print_optional_admin_cmd(u16 oacs, int devnum)
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{
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printf("Blk device %d: Optional Admin Command Support:\n",
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devnum);
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printf("\tNamespace Management/Attachment: %s\n",
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oacs & 0x08 ? "yes" : "no");
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printf("\tFirmware Commit/Image download: %s\n",
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oacs & 0x04 ? "yes" : "no");
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printf("\tFormat NVM: %s\n",
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oacs & 0x02 ? "yes" : "no");
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printf("\tSecurity Send/Receive: %s\n",
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oacs & 0x01 ? "yes" : "no");
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}
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static void print_optional_nvm_cmd(u16 oncs, int devnum)
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{
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printf("Blk device %d: Optional NVM Command Support:\n",
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devnum);
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printf("\tReservation: %s\n",
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oncs & 0x10 ? "yes" : "no");
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printf("\tSave/Select field in the Set/Get features: %s\n",
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oncs & 0x08 ? "yes" : "no");
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printf("\tWrite Zeroes: %s\n",
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oncs & 0x04 ? "yes" : "no");
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printf("\tDataset Management: %s\n",
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oncs & 0x02 ? "yes" : "no");
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printf("\tWrite Uncorrectable: %s\n",
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oncs & 0x01 ? "yes" : "no");
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}
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static void print_format_nvme_attributes(u8 fna, int devnum)
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{
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printf("Blk device %d: Format NVM Attributes:\n", devnum);
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printf("\tSupport Cryptographic Erase: %s\n",
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fna & 0x04 ? "yes" : "No");
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printf("\tSupport erase a particular namespace: %s\n",
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fna & 0x02 ? "No" : "Yes");
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printf("\tSupport format a particular namespace: %s\n",
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fna & 0x01 ? "No" : "Yes");
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}
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static void print_format(struct nvme_lbaf *lbaf)
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{
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u8 str[][10] = {"Best", "Better", "Good", "Degraded"};
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printf("\t\tMetadata Size: %d\n", le16_to_cpu(lbaf->ms));
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printf("\t\tLBA Data Size: %d\n", 1 << lbaf->ds);
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printf("\t\tRelative Performance: %s\n", str[lbaf->rp & 0x03]);
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}
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static void print_formats(struct nvme_id_ns *id, struct nvme_ns *ns)
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{
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int i;
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printf("Blk device %d: LBA Format Support:\n", ns->devnum);
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for (i = 0; i < id->nlbaf; i++) {
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printf("\tLBA Foramt %d Support: ", i);
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if (i == ns->flbas)
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printf("(current)\n");
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else
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printf("\n");
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print_format(id->lbaf + i);
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}
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}
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static void print_data_protect_cap(u8 dpc, int devnum)
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{
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printf("Blk device %d: End-to-End Data", devnum);
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printf("Protect Capabilities:\n");
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printf("\tAs last eight bytes: %s\n",
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dpc & 0x10 ? "yes" : "No");
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printf("\tAs first eight bytes: %s\n",
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dpc & 0x08 ? "yes" : "No");
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printf("\tSupport Type3: %s\n",
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dpc & 0x04 ? "yes" : "No");
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printf("\tSupport Type2: %s\n",
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dpc & 0x02 ? "yes" : "No");
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printf("\tSupport Type1: %s\n",
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dpc & 0x01 ? "yes" : "No");
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}
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static void print_metadata_cap(u8 mc, int devnum)
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{
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printf("Blk device %d: Metadata capabilities:\n", devnum);
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printf("\tAs part of a separate buffer: %s\n",
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mc & 0x02 ? "yes" : "No");
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printf("\tAs part of an extended data LBA: %s\n",
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mc & 0x01 ? "yes" : "No");
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}
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int nvme_print_info(struct udevice *udev)
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{
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struct nvme_ns *ns = dev_get_priv(udev);
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struct nvme_dev *dev = ns->dev;
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struct nvme_id_ctrl *ctrl;
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struct nvme_id_ns *id;
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int ret = 0;
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ctrl = memalign(dev->page_size, sizeof(struct nvme_id_ctrl));
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if (!ctrl)
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return -ENOMEM;
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if (nvme_identify(dev, 0, 1, (dma_addr_t)(long)ctrl)) {
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ret = -EIO;
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goto free_ctrl;
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}
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print_optional_admin_cmd(le16_to_cpu(ctrl->oacs), ns->devnum);
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print_optional_nvm_cmd(le16_to_cpu(ctrl->oncs), ns->devnum);
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print_format_nvme_attributes(ctrl->fna, ns->devnum);
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id = memalign(dev->page_size, sizeof(struct nvme_id_ns));
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if (!id) {
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ret = -ENOMEM;
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goto free_ctrl;
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}
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if (nvme_identify(dev, ns->ns_id, 0, (dma_addr_t)(long)id)) {
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ret = -EIO;
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goto free_id;
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}
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print_formats(id, ns);
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print_data_protect_cap(id->dpc, ns->devnum);
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print_metadata_cap(id->mc, ns->devnum);
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free_id:
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free(id);
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free_ctrl:
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free(ctrl);
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return ret;
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}
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