qed_dbg_igu_fifo_dump(9)

💅 qed_dbg_igu_fifo_dump — bestie's guide to the IGU fifo dump

okay so this is qed_dbg_igu_fifo_dump(9), a kernel API manual page, and honestly? it's giving "small function, big job." ✨ It reads the IGU fifo and writes the results into the buffer you hand it. That's the whole vibe. No cap.

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🌸 SYNOPSIS

enum dbg_status qed_dbg_igu_fifo_dump (struct qed_hwfn *p_hwfn , struct
qed_ptt *p_ptt , u32 *dump_buf , u32 buf_size_in_dwords , u32
*num_dumped_dwords );

like, yes, that's the exact signature, don't touch it 🫶

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🎀 ARGUMENTS

• p_hwfn — HW device data. the main character, honestly 👑
• p_ptt — Ptt window used for writing the registers.
• dump_buf — Pointer to write the IGU fifo data into. this is where the fifo goes 🍓
• buf_size_in_dwords — Size of the specified buffer in dwords. measure twice, dump once 📏
• num_dumped_dwords — (OUT) number of dumped dwords. it writes back to you how much it actually dumped, so pay attention 💌

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🔥 RETURN

So it returns an error if any of these hold:

• The version wasn't set
• The specified buffer is too small
• DMAE transaction failed

Otherwise, returns ok. periodt. 💀✨

ngl bestie, "buffer is too small" is a real one — size it with qed_dbg_igu_fifo_get_dump_buf_size(9) first and save yourself the heartbreak 😭

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🦋 SEE ALSO

Kernel file ./drivers/net/ethernet/qlogic/qed/qed_dbg_hsi.h

and the whole friend group 💜:

• qed_dbg_set_bin_ptr(9), qed_read_regs(9), qed_read_fw_info(9)
• qed_dbg_grc_config(9), qed_dbg_grc_set_params_default(9), qed_dbg_grc_get_dump_buf_size(9), qed_dbg_grc_dump(9)
• qed_dbg_idle_chk_get_dump_buf_size(9), qed_dbg_idle_chk_dump(9)
• qed_dbg_mcp_trace_get_dump_buf_size(9), qed_dbg_mcp_trace_dump(9)
• qed_dbg_reg_fifo_get_dump_buf_size(9), qed_dbg_reg_fifo_dump(9)
• qed_dbg_igu_fifo_get_dump_buf_size(9)
• qed_dbg_protection_override_get_dump_buf_size(9), qed_dbg_protection_override_dump(9)
• qed_dbg_fw_asserts_get_dump_buf_size(9), qed_dbg_fw_asserts_dump(9)
• qed_dbg_read_attn(9), qed_dbg_print_attn(9)
• qed_dbg_user_set_bin_ptr(9), qed_dbg_alloc_user_data(9), qed_dbg_get_status_str(9)
• qed_get_idle_chk_results_buf_size(9), qed_print_idle_chk_results(9)
• qed_dbg_mcp_trace_set_meta_data(9), qed_get_mcp_trace_results_buf_size(9), qed_print_mcp_trace_results(9), qed_mcp_trace_free_meta_data(9)
• qed_get_reg_fifo_results_buf_size(9), qed_print_reg_fifo_results(9)
• qed_get_igu_fifo_results_buf_size(9), qed_print_igu_fifo_results(9)
• qed_get_protection_override_results_buf_size(9), qed_print_protection_override_results(9)
• qed_get_fw_asserts_results_buf_size(9), qed_print_fw_asserts_results(9)
• qed_dbg_parse_attn(9)

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okay that's the whole page, you ate that 💅💖 this one lives in ./drivers/net/ethernet/qlogic/qed, dated October 2026, in the Kernel API Manual, and it's filed under the name qed_dbg_igu_fifo_dump(9) — mwah, go dump that fifo bestie 🌈⭐