fc_seq_send(9)

💌 fc_seq_send(9) — the send-a-frame one 💌

okay bestie, welcome to the Kernel API Manual ✨ this one is short and sweet and honestly kind of a baddie. it's fc_seq_send, and no cap, its whole personality is: take a frame, yeet it out on a sequence/exchange pair you already have. that's it. that's the whole vibe 🎀

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🌸 NAME 🌸

fc_seq_send — send a frame using an existing sequence/exchange pair 💅 (emphasis on existing, she does not make new ones, she just uses what you hand her, iykyk)

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🦋 SYNOPSIS 🦋

int fc_seq_send (struct fc_lport *lport , struct fc_seq *sp , struct
fc_frame *fp );

it returns an int, bestie. that's the tea ☕

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✨ ARGUMENTS ✨

• lport — the local port that the exchange is gonna be sent on 🫶 like, where the whole thing lives.
• sp — the sequence to be sent 🧚 this is the sequence, she's already got her act together, you're just sending her.
• fp — the frame to be sent on the exchange 💌 the actual frame, the main character, the payload carrier.

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⭐ NOTE ⭐

okay so this is important so listen up 📢 the frame will be freed. yes, freed. gone. and it happens one of two ways:

• by a direct call to fc_frame_free(fp), or
• indirectly by calling libfc_function_template.frame_send

either way, do not be out here touching that frame afterwards, that's giving use-after-free energy and we do NOT stan 💀

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💜 SEE ALSO 💜

the whole friend group, fr fr — you can find all of these in the kernel file ./drivers/scsi/libfc/fc_exch.c:

• struct fc_exch_pool(9)
• struct fc_exch_mgr(9)
• struct fc_exch_mgr_anchor(9)
• fc_exch_name_lookup(9)
• fc_exch_rctl_name(9)
• fc_exch_hold(9)
• fc_exch_setup_hdr(9)
• fc_exch_release(9)
• fc_exch_timer_cancel(9)
• fc_exch_timer_set_locked(9)
• fc_exch_timer_set(9)
• fc_exch_done_locked(9)
• fc_exch_ptr_get(9)
• fc_exch_ptr_set(9)
• fc_exch_delete(9)
• fc_seq_alloc(9)
• fc_seq_start_next_locked(9)
• fc_seq_start_next(9)
• fc_exch_abort_locked(9)
• fc_seq_exch_abort(9)
• fc_invoke_resp(9)
• fc_exch_timeout(9)
• fc_exch_em_alloc(9)
• fc_exch_alloc(9)
• fc_exch_find(9)
• fc_exch_done(9)
• fc_exch_resp(9)
• fc_seq_lookup_recip(9)
• fc_seq_lookup_orig(9)
• fc_exch_set_addr(9)
• fc_seq_els_rsp_send(9)
• fc_seq_send_last(9)
• fc_seq_send_ack(9)
• fc_exch_send_ba_rjt(9)
• fc_exch_recv_abts(9)
• fc_seq_assign(9)
• fc_seq_release(9)
• fc_exch_recv_req(9)
• fc_exch_recv_seq_resp(9)
• fc_exch_recv_resp(9)
• fc_exch_abts_resp(9)
• fc_exch_recv_bls(9)
• fc_seq_ls_acc(9)
• fc_seq_ls_rjt(9)
• fc_exch_reset(9)
• fc_exch_pool_reset(9)
• fc_exch_mgr_reset(9)
• fc_exch_lookup(9)
• fc_exch_els_rec(9)
• fc_exch_rrq_resp(9)
• fc_exch_seq_send(9)
• fc_exch_rrq(9)
• fc_exch_els_rrq(9)
• fc_exch_update_stats(9)
• fc_exch_mgr_add(9)
• fc_exch_mgr_destroy(9)
• fc_exch_mgr_del(9)
• fc_exch_mgr_list_clone(9)
• fc_exch_mgr_alloc(9)
• fc_exch_mgr_free(9)
• fc_find_ema(9)
• fc_exch_recv(9)
• fc_exch_init(9)
• fc_setup_exch_mgr(9)
• fc_destroy_exch_mgr(9)

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and that's the whole page, bestie 🫶 go send some frames responsibly 💖

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mwah 💋 this one comes to you from ./drivers/scsi/libfc, dated October 2026 — see you in the next manpage, love u, bye 👑