STRUCT MLXBF_PMC_BLOCK_INFO(9)

💅 struct mlxbf_pmc_block_info(9)

okay so this is a page from the Kernel API Manual (yes, the actual kernel docs, we're fancy now ✨) and it's all about struct mlxbf_pmc_block_info — literally the little data home where all the info for each HW block lives. bestie, it's giving "one struct to hold them all" 🎀

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🌸 NAME 🌸

struct mlxbf_pmc_block_info — the Structure to hold info for each HW block 💖

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✨ SYNOPSIS ✨

struct mlxbf_pmc_block_info {
    void __iomem *mmio_base;
    size_t blk_size;
    size_t counters;
    unsigned int type;
    struct mlxbf_pmc_attribute *attr_counter;
    struct mlxbf_pmc_attribute *attr_event;
    struct mlxbf_pmc_attribute attr_event_list;
    struct mlxbf_pmc_attribute attr_enable;
    struct mlxbf_pmc_attribute attr_count_clock;
    struct attribute *block_attr[MLXBF_PMC_MAX_ATTRS];
    struct attribute_group block_attr_grp;
 };

like, that's the whole vibe right there 🫶 copy it exactly, don't be cute with it.

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🦋 Members 🦋

okay let's go member by member, no skipping, periodt 👑

• mmio_base — The VA at which the PMC block is mapped. that's the virtual address where this block lives, iconic ✨
• blk_size — Size of each mapped region. how much room it takes, ngl pretty self-explanatory 💅
• counters — Number of counters in the block. count 'em up 🔢
• type — Type of counters in the block. this block's whole personality, fr fr
• attr_counter — Attributes for "counter" sysfs files. yup, the sysfs files, in quotes, exactly like that 🎀
• attr_event — Attributes for "event" sysfs files. same energy, different file 🌈
• attr_event_list — Attributes for "event_list" sysfs files. it's the list version, she's special 💜
• attr_enable — Attributes for "enable" sysfs files. turn it on ⭐
• attr_count_clock — Attributes for "count_clock" sysfs files. clock girlies rise 🕐
• block_attr — All attributes needed for the block. every single one, main character energy 👑
• block_attr_grp — Attribute group for the block. she groups them all together, mother 🧚

lowkey obsessed with how tidy this struct is. every attribute has a home and nothing is orphaned, we love a structured queen 💀

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/platform/mellanox/mlxbf-pmc.c struct
• struct mlxbf_pmc_attribute(9)
• struct mlxbf_pmc_context(9)
• struct mlxbf_pmc_events(9)

iykyk — go read those next, bestie 📚

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and that's the whole page!! 🍓 mwah 💋 this came out of ./drivers/platform/mellanox and it's dated October 2026, published as struct mlxbf_pmc_block_info(9) — slay, you're officially a struct expert now 🌟