set_dma_attr(9)

🌟 set_dma_attr(9) 🌟

from the Kernel API Manual — okay bestie, this is the page for setting the dma attributes in the HW. it's giving low-level kernel API realness, and we are keeping every fact exactly where it belongs, fr fr 💅

💖 NAME 💖

set_dma_attr — set the dma attributes in the HW. that's the whole name, and honestly? iconic.

✨ SYNOPSIS ✨

the signature, copied exactly with zero edits:

void set_dma_attr (struct hinic_hwif *hwif , u32 entry_idx , u8 st , u8
at , u8 ph , enum hinic_pcie_nosnoop no_snooping , enum hinic_pcie_tph
tph_en );

💅 ARGUMENTS 💅

• hwif — the HW interface of a pci function device. main-character device energy 🫶
• entry_idx — the entry index in the dma table. yes bestie, you are indexing into the dma table.
• st — PCIE TLP steering tag. short name, big PCIe TLP energy.
• at — PCIE TLP AT field. it's the PCIE TLP AT field, no cap.
• ph — PCIE TLP Processing Hint field. processing hint moment ✨
• no_snooping — PCIE TLP No snooping. literally the no-snooping vibe.
• tph_en — PCIE TLP Processing Hint Enable. the enable part is right there in the name 💀

🦋 SEE ALSO 🦋

Kernel file: ./drivers/net/ethernet/huawei/hinic/hinic_hw_if.c

also go peek at these besties:

• hinic_msix_attr_set(9)
• hinic_msix_attr_cnt_clear(9)
• hinic_set_pf_action(9)
• hwif_ready(9)
• set_hwif_attr(9)
• read_hwif_attr(9)
• set_ppf(9)
• dma_attr_init(9)
• hinic_init_hwif(9)
• hinic_free_hwif(9)

💌 that's the whole page, bestie — source/version: ./drivers/net/ethernet/huawei/..., date: October 2026. slay, mwah 💋