STRUCT ADF_GEN4_TL_RING_PAIR_DATA_REGS(9)

✨ struct adf_gen4_tl_ring_pair_data_regs ✨

okay so bestie, welcome to the Kernel API Manual 💅 this one's a struct page, and honestly? she's giving "device writes numbers into me periodically and I just hold them" energy. iconic.

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🎀 NAME 🎀

struct adf_gen4_tl_ring_pair_data_regs — ngl this structure is literally just a little storage unit: it stores Ring Pair telemetry counter values, exactly as they're being populated periodically by the device. no cap, that's the whole vibe. 🫶

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🦋 SYNOPSIS 🦋

here's the shape of her, character for character, do not touch:

struct adf_gen4_tl_ring_pair_data_regs {
    __u64 reg_tl_gp_lat_acc;
    __u64 reserved;
    __u32 reg_tl_pci_trans_cnt;
    __u32 reg_tl_ae_put_cnt;
    __u32 reg_tl_bw_in;
    __u32 reg_tl_bw_out;
    __u32 reg_tl_at_glob_devtlb_hit;
    __u32 reg_tl_at_glob_devtlb_miss;
    __u32 reg_tl_at_payld_devtlb_hit;
    __u32 reg_tl_at_payld_devtlb_miss;
    __u32 reg_tl_re_cnt;
    __u32 reserved1;
};

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🌸 Members 🌸

okay let's go member by member, main character by main character 👑

• reg_tl_gp_lat_acc — the get-put latency accumulator. she's keeping the receipts on latency, periodt. 💫
• reserved — reserved. truly reserved. not for you. 🙈
• reg_tl_pci_trans_cnt — PCIe partial transactions. counting them, slay. 🔥
• reg_tl_ae_put_cnt — Accelerator Engine put counts across all rings. all of them. she's thorough. 👑
• reg_tl_bw_in — PCIe write bandwidth. that's the in, bestie. 🌈
• reg_tl_bw_out — PCIe read bandwidth. and that's the out. symmetric icon. 🦋
• reg_tl_at_glob_devtlb_hit — Message descriptor DevTLB hit rate. hit different, literally. ⭐
• reg_tl_at_glob_devtlb_miss — Message descriptor DevTLB miss rate. the miss. 😭
• reg_tl_at_payld_devtlb_hit — Payload DevTLB hit rate. payload hits are the moment. 💖
• reg_tl_at_payld_devtlb_miss — Payload DevTLB miss rate. payload misses are not the moment. 💀
• reg_tl_re_cnt — ring empty time samples count. she's counting the times the ring was empty and honestly, same. 🍓
• reserved1 — reserved. again. yes there's another one. lowkey reserved is having a whole arc. 🧚

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💜 SEE ALSO 💜

bestie you literally have to look at these too, iykyk:

• Kernel file ./drivers/crypto/intel/qat/qat_common/adf_gen4_tl.h
• struct adf_gen4_tl_slice_data_regs(9)
• struct adf_gen4_tl_device_data_regs(9)
• struct adf_gen4_tl_layout(9)

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🫶 friendly reminder: the reserved and reserved1 members are, in fact, reserved. leave them alone. don't make it weird.

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and that's the whole page!! mwah 💋 this came from ./drivers/crypto/intel/qat/qat... and she's dated October 2026, landing back on struct adf_g...ir_data_regs(9). bye bestie, go read the source 🌟🎀✨