t4vf_sge_stop(9)

✨ t4vf_sge_stop(9) ✨

okay so this is a page straight out of the Kernel API Manual — section 9, kernel land, the whole vibe 💅 and today's main character is t4vf_sge_stop(9). buckle up bestie 🎀

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🌸 NAME 🌸

t4vf_sge_stop — disable SGE operation 🛑

like, we're shutting it down. not a drill. fr fr.

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🦋 SYNOPSIS 🦋

void t4vf_sge_stop (struct adapter *adapter );

that's it. that's the whole signature. returns void, so nothing came back — it's giving "no notes, no receipts" 💀

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🎀 ARGUMENTS 🎀

• adapter — the adapter 🫶 yeah. that's the description. the adapter. the whole thing. she's the adapter and that's all we're told, iykyk.

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💖 DESCRIPTION 💖

okay so what this does: it stops the tasklets and the timers that are associated with the DMA engine. that's the move. that's the assignment. 👑

but — and this is the important part, don't skip it — this is only effective if measures have been taken to disable any HW events that may restart them 😭

read that again. if you haven't dealt with the hardware events that could just... bring them right back? then this is lowkey doing nothing. the tasklets and timers will respawn like it's a video game. so take the measures first, then call this. periodt. ✨

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🔥 SEE ALSO 🔥

first up, the source file — it lives right here in the kernel at:

./drivers/net/ethernet/chelsio/cxgb4vf/sge.c

and now, the whole entire friend group 🌈 (yes, all of them, i'm not skipping a single one, we don't do that here):

• get_buf_addr(9)
• is_buf_mapped(9)
• need_skb_unmap(9)
• txq_avail(9)
• fl_cap(9)
• fl_starving(9)
• map_skb(9)
• free_tx_desc(9)
• reclaim_completed_tx(9)
• get_buf_size(9)
• free_rx_bufs(9)
• unmap_rx_buf(9)
• ring_fl_db(9)
• set_rx_sw_desc(9)
• refill_fl(9)
• alloc_ring(9)
• sgl_len(9)
• flits_to_desc(9)
• is_eth_imm(9)
• calc_tx_flits(9)
• write_sgl(9)
• ring_tx_db(9)
• inline_tx_skb(9)
• t4vf_eth_xmit(9)
• copy_frags(9)
• t4vf_pktgl_to_skb(9)
• t4vf_pktgl_free(9)
• do_gro(9)
• t4vf_ethrx_handler(9)
• is_new_response(9)
• restore_rx_bufs(9)
• rspq_next(9)
• process_responses(9)
• napi_rx_handler(9)
• t4vf_intr_handler(9)
• sge_rx_timer_cb(9)
• sge_tx_timer_cb(9)
• bar2_address(9)
• t4vf_sge_alloc_rxq(9)
• t4vf_sge_alloc_eth_txq(9)
• t4vf_free_sge_resources(9)
• t4vf_sge_start(9)
• t4vf_sge_init(9)

like, that's the entire group chat. every single one got an invite. slay 💅

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and that's the page!! 🌟 cute little sign-off time: this one's brought to you by that ./drivers/net/ethernet/chelsio... source situation (the path got a lil truncated, she's shy 🙈) and the date on the original footer is October 2026 — yes, future dated, main character energy fr fr. go forth and stop those SGE tasklets responsibly, bestie 🧚💜