mlx5dv_dm_map_op_addr(3)

📦
version 62.0 · 8 versions
, in alpine 3.24, centos-stream 10, centos-stream 9, ubuntu jammy

✨ mlx5dv_dm_map_op_addr ✨

okay so this one lives in the mlx5 Programmer's Manual (yes, that mlx5, the fancy one 💅) and honestly? it's giving "one job, does it well." let's get into it bestie 🫶

🌸 NAME 🌸

mlx5dv_dm_map_op_addr — get the operation address of a device memory (DM). that's it, that's the whole vibe 🎀

🦋 SYNOPSIS 🦋

#include <infiniband/mlx5dv.h>

void *mlx5dv_dm_map_op_addr(struct ibv_dm *dm, uint8_t op);

like, look at it. two args, one pointer back. clean. iconic. no cap 🔥

💖 DESCRIPTION 💖

mlx5dv_dm_map_op_addr() returns a mmaped address to the device memory for the requested op. so you ask politely for an op, and it hands you back the mmaped address for it. that's the entire plot ✨

🍓 ARGUMENTS 🍓

  • dm — the associated ibv_dm for this operation. it's the DM in question, the main character of this call 👑
  • op — indicates the DM operation type, based on device specification. so like… check your device spec, bestie, it's not out here guessing for you 🙈

⭐ RETURN VALUE ⭐

returns a pointer to the mmaped address 💫 — but heads up, on error NULL will be returned and errno will be set. so fr fr, check that return value, don't just vibe past it 😭

🌈 SEE ALSO 🌈

go read those next, iykyk 🧚

💜 AUTHOR 💜

Maor Gottlieb <maorg@nvidia.com> — thank you for your service 🫡💐

okay that's the whole page!! this little cutie is from the mlx5 manual, dated 2021-1-21, and it's filed under mlx5dv_dm_map_op_addr(3) in case you need to find it again. mwah, go map some op addresses responsibly 💅🎀💖

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