qed_dmae_to_grc(9)

💅 qed_dmae_to_grc 💅

okay so welcome to the Kernel API Manual entry for qed_dmae_to_grc(9). she’s an internal function, so not main-character public API, but she’s out here writing from host to wide-bus registers, no cap. and bestie, read the fine print: split registers are not supported yet, so don’t come for her with those 💀

🌸 NAME 🌸

qed_dmae_to_grc — Internal function for writing from host to wide-bus registers (split registers are not supported yet).

✨ SYNOPSIS ✨

int qed_dmae_to_grc (struct qed_hwfn *p_hwfn , struct qed_ptt *p_ptt ,
       __le32 *p_data , u32 addr , u32 len_in_dwords );

⚠️ caveat bestie: split registers are not supported yet. that’s a fact, not a vibe check 🔥

🎀 ARGUMENTS 🎀

• p_hwfn — HW device data. that’s the hwfn, the whole device vibe.
• p_ptt — PTT window used for writing the registers. this is the window you write through, periodt.
• p_data — Pointer to source data. the data you’re copying from — the source material, the moment.
• addr — Destination register address. where it’s going, the destination register.
• len_in_dwords — Data length in dwords (u32). count it in dwords, not vibes, and it’s a u32.

🔥 RETURN 🔥

Length of the written data in dwords (u32) or -1 on invalid input. so if everything’s cute, you get the length back as a u32; if the input is invalid, it’s -1, and that is not a slay 😭

🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/qlogic/qed/qed_init_fw_funcs.c — go peek if you want the lore 🦋

mwah 💋 — this page’s source/version is ./drivers/net/ethernet/qlogic/qed, and the date on it is October 2026. go off, bestie 🫶