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path: root/drivers/nvme/nvme_show.c
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2022-01-14nvme: Do not allocate 8kB buffer on stackPali Rohár1-9/+26
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 2f83481dff9c ("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>
2019-05-19nvme: Fix warning of cast from pointer to integer of different sizeBin Meng1-2/+2
When dma_addr_t is u32 in 64-bit, there are some warnings when building NVME driver. Fix it by doing an additional (long) cast. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini1-2/+1
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-28nvme: Apply cache operations on the DMA buffersBin Meng1-2/+5
So far cache operations are only applied on the submission queue and completion queue, but they are missing in other places like identify and block read/write routines. In order to correctly operate on the caches, the DMA buffer passed to identify routine must be allocated properly on the stack with the existing macro ALLOC_CACHE_ALIGN_BUFFER(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-08-13nvme: Add show routine to print detailed informationZhikang Zhang1-0/+127
This adds nvme_print_info() to show detailed NVMe controller and namespace information. Signed-off-by: Zhikang Zhang <zhikang.zhang@nxp.com> Signed-off-by: Wenbin Song <wenbin.song@nxp.com> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>